Search Results — 2000 specimen records retrieved (1354 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/cch_archive/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  UC502913  Abies concolor Joseph P. Tracy 1927-6-12 8144 Humboldt Horse Mountain 1524 Comment
  CAS-BOT-BC78059  Abies grandis Doris K. Kildale 1927-5-13 3128 Humboldt Green Point, Redwood Creek road Comment
  CDA19007  Abies grandis Lubinski 2000-10-5 PDR P 070106 Humboldt North Coast Ranges; along U.S.F.S Rd 1, in the vicinity of Blue Lake. 0 Comment
  CDA468  Abies grandis George Loughner 2000-10-6 PDR# 023915 Humboldt Ridge, E of Blue Lake. 0 Comment
  HSC40002  Abies grandis Linda M. Barker 1976-9-3 1688 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC1193117  Abies grandis P. J. Zinke 1950-9-21 163 Humboldt Salmon Creek 1 mi upstream from Mill Creek Salmon Creek, Quad. 29C1 152 Comment
  HSC74290  Abies procera M. A. Baker 1980-7-19 3041 Humboldt Near Bret Hole. 1814 Comment
  RSA15561  Abronia latifolia Carl B. Wolf 1927-8-29 1211 Humboldt Devils Gate, S of Cape Mendocino Comment
  SD41446  Abronia latifolia Edith A. Purer 1932-7-27 4124 Humboldt Samoa Comment
  RSA0025081  Abronia latifolia I. L. Wiggins 1932-7-19 5888 Humboldt Near Clam Beach, eight miles north of Arcata. Comment
  UC1602146  Abronia latifolia Joseph P. Tracy 1936-6-6 14861 Humboldt Sandy shore near railroad station Eureka 3 Comment
  CAS-BOT-BC436976  Acaena novae-zelandiae T. C. Fuller 1966-10-4 15236 Humboldt 1 mile northwest of Fieldbrook Comment
  CDA40642  Acaena novae-zelandiae G. D. Barbe, E. C. Whitney & Warren Simas 1978-7-26 2416 Humboldt East of Arcata airport between Fieldbrook and Crannell; Vic Guynup property. 0 Comment
  HSC27944  Acaena novae-zelandiae Gary S. Lester 1973-11-8 55 Humboldt Anchor Tree Farm, E of McKinleyville near Fieldbrook 152 Comment
  UC1585365  Acer macrophyllum R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 UCBG 20 Humboldt on Hwy 299, 11.2 km e Hwy 101 (e of Arcata); e of Arcata Comment
  HSC102172  Achillea millefolium M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1084 Humboldt Patterson Meadows 1566 Comment
  SEINET2145826  Achillea millefolium Joseph P. Tracy 1912-6-9 3661 Humboldt Alton 60 Comment
  UC1192145  Achillea millefolium Malcolm A. Nobs and S. Galen Smith 1949-8-3 1189 Humboldt southern outskirts of Eureka Comment
  HSC3338  Achlys triphylla D. E. Anderson 1965-5-1 3575 Humboldt 4-5 mi. W of junction Bluff Creek Rd. and Hwy. 96, along Bluff Creek Rd. Comment
  HSC57026  Achlys triphylla Overton, Butler 1979-7-24 9647 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC81935  Achlys triphylla Thomas W. Nelson, Jane Nelson 1979-7-3 4958 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  SEINET200949 Image available Achnatherum lemmonii J. P. Tracy 1921-5-30 5486 Humboldt Kneeland Prairie 762 Comment
  UCD50689  Achnatherum lemmonii R. Tofsrud 1948-9-1 s.n. Humboldt Road junction near summit of Horse Mt. 1463 Comment
  RSA167290  Achnatherum lemmonii var. lemmonii Joseph P. Tracy 1951-6-26 19563 Humboldt Halfway between Snow Camp & Twin Lakes (at Preston's old gate near road) Comment
  UC526759  Achnatherum occidentale subsp. californicum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9052 Humboldt near Blake lookout (along summit); Northern Coast Ranges, South Fork Mountain 1737 Comment
  UCD104078  Acmispon brachycarpus H. E. Parks 1941-8-1 24183 Humboldt Little River State Park. Comment
  HSC48617  Acmispon micranthus Mark Flippo 1978-5-31 96 Humboldt Mckinleyville, Bella Vista Rd. Comment
  UCD104321  Acmispon parviflorus P. B. Kennedy 1929-6-12 s.n. Humboldt Around Eureka. Comment
  UC668267  Aconitum columbianum Joseph P. Tracy 1937-8-12 15661 Humboldt Snow Camp 1402 Comment
  CHSC84721  Aconitum columbianum var. columbianum L. P. Janeway 2003-7-26 7921 Humboldt High North Coast Ranges. South side (above) Road 5N04, 0.5 km northeast of the top of Grouse Mountain. 1554 Comment
  HSC82393  Aconogonon davisiae Thomas W. Nelson 1979-7-11 5022 Humboldt N Trinity Mtn. and ridge to E, SE of Water Dog Lake 1829 Comment
  CAS-BOT-BC418767  Aconogonon phytolaccifolium Doris K. Kildale 1925-9-1 1368 Humboldt Eureka Comment
  HSC57018  Adenocaulon bicolor Overton, Butler 1979-7-24 9630 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC97952  Adenocaulon bicolor Cara Witte 2007-6-21 326 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1430 Comment
  UC249778 Image available Adiantum X tracyi Joseph P. Tracy 1924-9-16 6868 Humboldt <collector's garden> Eureka; Northern Coast Ranges 30 Comment
  UC275411  Adiantum aleuticum Joseph P. Tracy 1925-11-25 7324 Humboldt near s fork Trinity River Valley; Northern Coast Ranges 182 Comment
  CAS-BOT-BC65624  Adiantum jordanii Joseph P. Tracy 1895-9-1 6868 Humboldt near Pepperwood 30 Comment
  CAS-BOT-BC65727  Adiantum pedatum Kenneth Clark 1980-6-14 691 Humboldt Point Delgada quad, north fork Dead Man's Gulch 83 Comment
  UC1222303  Aesculus californica Joseph P. Tracy 1950-6-21 18856 Humboldt w side mouth of South Fork (near the South Fork); Trinity River Valley 182 Comment
  UC1239671  Agastache urticifolia Joseph P. Tracy 1939-8-5 16387 Humboldt Dinsmore's 731 Comment
  JEPS18702  Ageratina occidentalis Milo S. Baker 1923-7-21 447 Humboldt Bed of Van Duzen North Coast, Bed of Van Duzen Comment
  JEPS36371  Agoseris apargioides William S. Cooper 1925-7-29 114 Humboldt Samoa Comment
  SEINET202624 Image available Agoseris grandiflora Joseph P. Tracy 1942-7-18 17276 Humboldt Garberville north end of town. Comment
  UCD128595  Agoseris grandiflora Joseph P. Tracy 1942-7-18 17276 Humboldt north end of town, Garberville. Comment
  UC166791  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1901-8-2 1245 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC582758  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1929-7-4 8621 Humboldt French Camp Ridge French Camp Ridge 1066 Comment
  UC1222930  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1950-7-31 19225 Humboldt 1 mi s, along roadside Friday's Camp; Grouse Mountain 1524 Comment
  UC1222931  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1950-7-31 19233 Humboldt near Clear Lake; Grouse Mountain 1524 Comment
  UC1222892  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1948-5-31 18015 Humboldt 1 mi sw, (near Alder Point) Harris; Alder Point 304 Comment
  UC175200  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1913-6-14 4132 Humboldt at, (opposite Buck Mountain, in valley of Van Duzen River) Dinsmore's Ranch; Northern Coast Ranges, Van Duzen River 762 Comment
  UC275460  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1925-5-30 7019 D Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  UC1222766  Agoseris retrorsa Joseph P. Tracy 1950-7-1 18952 Humboldt Grouse Mountain 1219 Comment
  HSC8779  Agrostis densiflora D. E. Anderson 1965-9-5 4073 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  CAS-BOT-BC127286  Agrostis exarata W. R. Dudley 1899-1-1 s.n. Humboldt Arcata. Comment
  CAS-BOT-BC127300  Agrostis exarata Joseph P. Tracy 1927-7-17 8271 Humboldt Three Cabins. Western foothills of Chaparral Mountain. 457 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
  UC1607846  Agrostis exarata Harold E. Parks 1935-6-1 5687 Humboldt Spruce Cove Trinidad district 64 Comment
  CAS-BOT-BC139694  Agrostis gigantea Joseph P. Tracy 1932-8-21 10363 Humboldt North Coast Ranges. Three Cabins. On lower western foothills of Chaparral Mountain. 457 Comment
  HSC68942  Agrostis hallii Jacqueline Greenleaf 1980-8-5 289 Humboldt Near Dairy Creek. 1158 Comment
  UC187118  Agrostis hallii Joseph P. Tracy 1911-7-4 3288 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity 182 Comment
  UC188851  Agrostis hallii Joseph Burtt Davy 1899-6-16 5564 Humboldt Alton Comment
  UC33716  Agrostis hallii Joseph Burtt Davy and Walter C. Blasdale 1899-6-27 5873 Humboldt Martins Ferry Comment
  SEINET10810391  Agrostis longiligula Joseph P. Tracy 1902-7-4 Tracy 1757 Humboldt 0 Comment
  HSC89897  Agrostis microphylla Leonel Arguello 1989-7-7 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi W of Arcata, south-west quadrant of Fernstrom-Root parcel. Comment
  UCD53038  Agrostis microphylla Joseph P. Tracy 1938-7-5 16006 Humboldt Carlotta, by old Strong's District School House, 5 miles east of town. 60 Comment
  SEINET11683259  Agrostis stolonifera K. S. Erdman 1970-1 4773 Humboldt Counts Hill prairie on Bald Hills Rd, SE of Orick 853 Comment
  HSC45216  Aira caryophyllea M. Alcasas 1978-6-3 117 Humboldt Titlow Hill Rd., 1.2 mi from Hwy. 299 1463 Comment
  HSC8849  Aira caryophyllea Rudolf W. Becking 1961-7-3 Humboldt Korbel Kerr Ranch study plots Comment
  SEINET3917480  Aira praecox Paul Dryden 1975-5-24 203 Humboldt Samoa Dunes. Dunes off Samoa Blvd. across from the boat landing.; 0 Comment
  UC34056  Aira praecox J. P. Tracy 1900-6-5 849 Humboldt Immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC460750  Allium amplectens Doris K. Kildale 1926-5-9 2000 Humboldt Kneeland Prairie 762 Comment
  RSA249433  Allium campanulatum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5599 Humboldt Mt Lassic and two smaller peaks to immediate E. 1768 Comment
  UC1198200  Allium falcifolium Joseph P. Tracy 1933-7-25 12892 Humboldt Grouse Mountain 1524 Comment
  UC1198201  Allium falcifolium Joseph P. Tracy 1933-7-25 12891 Humboldt Grouse Mountain 1524 Comment
  UC666938  Allium siskiyouense Joseph P. Tracy 1933-7-16 12789 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  UC2029549  Allium triquetrum Richard R. Halse 2013-3-28 8768 Humboldt Along U. S. Highway 101 ca. 1.0 miles west of Orick Comment
  SEINET12050176  Allium unifolium F. H. Utech 1986-1 86 -389 Humboldt ca 5 mi N of Shelter Cove Road on Kings Peak Road, near Tolkan Recreation Area 480 Comment
  UC176179  Allium unifolium Joseph P. Tracy 1913-6-10 4078 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  UC412886  Allotropa virgata Mrs. M. H. Manning 1901-1 Humboldt Hupa Comment
  RSA46862  Alnus rhombifolia Doris K. Kildale 1926-9-9 2686 Humboldt Little Van Dusen, near bridge on Bridgeville, Low Gap Road. 640 Comment
  SEINET5536121 Image available Alnus rhombifolia Joseph P. Tracy 1950-1 19375 Humboldt Klamath River near Slate Creek 122 Comment
  CAS-BOT-BC169542  Alnus rubra Carl B. Wolf 1930-10-26 1767 Humboldt SO edge of Bog Lagoon, near Redwood Highway Bridge 9 Comment
  CAS-BOT-BC169547  Alnus rubra Joseph P. Tracy 1930-11-16 9255 Humboldt Alton, along Van Duzen River 30 Comment
  HSC62778  Alnus rubra M. Dean Griswold Jr. 1979-5-30 89 Humboldt Along rd. up Jolly Giant Creek Comment
  UC503086  Alnus rubra Joseph P. Tracy 1931-9-26 9698 Humboldt Berry's Northern Coast Ranges, Redwood Creek 274 Comment
  HSC99040  Alnus viridis subsp. sinuata Cara Witte 2008-7-3 831 Humboldt Friday Ridge Road/ 6N08. 1.5 mile north of intersection with 5N39. 1474 Comment
  SEINET201058  Alopecurus carolinianus J. P. Tracy 1932-8-21 10360 Humboldt Three Cabins; lower W foothills of Chaparral Mtn 457 Comment
  UC1100224  Alopecurus geniculatus Malcolm A. Nobs and S. Galen Smith 1949-8-3 1164 Humboldt 1 mi. s. Fields Landing (Eel R. Valley); Eel R. Valley Comment
  UC573793  Alopecurus pratensis H. L. Person 1932-5-11 Humboldt Redwood Hwy. between Arcata and Eureka; Eureka Quad. 0 Comment
  CAS-BOT-BC13700  Ambrosia chamissonis W. S. Cooper 1925-7-28 102 Humboldt Cape Mendocino Comment
  CAS-BOT-BC13708  Ambrosia chamissonis Le Roy Abrams 1916-7-18 6118 Humboldt Arcata to Trinidad Comment
  CHSC10149  Ambrosia chamissonis J. W. Johnson 1961-8-17 1022 Humboldt W. M. Lanphere Farm, Samoa Peninsula. Comment
  OBI35979  Ambrosia chamissonis David J. Keil 1983-7-1 17288 Humboldt Ca 5 mi NW of Petrolia along Mattole Rd Comment
  UC166090  Ambrosia chamissonis J. P. Tracy 1901-8-7 1265 Humboldt at, opposite Eureka Samoa; Ocean Beach Comment
  UCD128769  Ambrosia chamissonis Linda M. Barker 1976-8-2 1674 Humboldt 3 miles west of Arcata. Comment
  CAS-BOT-BC142885  Amelanchier alnifolia var. semiintegrifolia Doris K. Kildale 1926-4-11 1754 Humboldt Strong's Station on the Van Duzen River Comment
  CAS-BOT-BC142888  Amelanchier alnifolia var. semiintegrifolia Doris K. Kildale 1927-5-14 3193 Humboldt Big Lagoon Comment
  CDA18243  Ammophila arenaria G. D. Barbe, T. C. Fuller 1974-6-19 1881 Humboldt North Coast Ranges; Mad River mouth, beach S of river, at end of Iversen Lane, Tyee City. 7 Comment
  SEINET200930  Ammophila arenaria J. P. Tracy 1918-7-28 5087 Humboldt Humboldt Bay particularly Samoa Comment
  UC205671  Ammophila arenaria Joseph P. Tracy 1918-7-28 5087 Humboldt Ocean Beach at Humboldt Bay, Northern Coast Region Comment
  CAS-BOT-BC213954  Amsinckia H. E. Parks; J. P. Tracy 1930-5-25 881 Humboldt Near Bridgeville. Comment
  HSC90482  Amsinckia spectabilis Jean Hanson 1981-5-10 132 Humboldt Indian (Gunther) Island, Humboldt Bay, W end of island Comment
  HSC17834  Anagallis arvensis D. E. Anderson 1963-5-25 2481 Humboldt 2-3 mi. N of Capetown Comment
  UC906762  Anagallis arvensis Joseph P. Tracy 1947-6-15 17713 Humboldt Eureka 30 Comment
  CAS-BOT-BC45143  Anaphalis margaritacea Bennett; Dunn; Dziekanowski 1976-8-6 478 Humboldt By Hwy 101, N side of Orick 30 Comment
  SEINET10674734  Anaphalis margaritacea Charlene A. Bennett, David B. Dunn; Chester T. Dziekanowski 1976-8-6 Bennett 478 Humboldt Collected by Hwy. 101, N side of Orick. Rocky area, densely forested by river. 30 Comment
  HSC56146  Anemone deltoidea G. L. Clifton, Griswold 1979-8-1 11975 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  JEPS79808  Anemone deltoidea Joseph P. Tracy Jul 16 1930-Jul 19 1930 8964 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC391776  Anemone deltoidea Volney Rattan 1883-6-5 s.n. Humboldt Near Eureka Comment
  JEPS60507  Anemone deltoidea W. L. Jepson 1902-6-22 1913 Humboldt Pepperwood Comment
  RSA304843  Anemone deltoidea James R. Shevock 1971-5-30 681 Humboldt Biants Ave, Humboldt St. Park. 152 Comment
Read comments
Oct 20 2009
  SJSU874  Anemone deltoidea A. C. Browne Sr. 1945-5-23 Humboldt Myers Flat Comment
  UC1196190  Anemone oregana Joseph P. Tracy 1901-4-26 1042 Humboldt n slope Humboldt Hill (near Buhne's Ranch, region about Humboldt Bay); North Coast Ranges 0 Comment
  UC586000  Angelica genuflexa Joseph P. Tracy 1927-9-25 8380 Humboldt 2 mi s of Fields Landing (around Humboldt Bay, at Still Ranch); Northern Coast Region, Still Ranch 6 Comment
  JEPS14108  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  UC183691  Angelica hendersonii Joseph P. Tracy 1912-7-21 3764 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  UC582633  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  UC582635  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  JEPS14104  Angelica hendersonii Joseph P. Tracy 1930-7-21 8896 Humboldt s point of Cape Mendocino Cape Mendocino 3 Comment
  UC154250  Angelica lucida Joseph P. Tracy 1909-9-19 3087 Humboldt Region about Humboldt Bay (near Samoa, Northern Coast Region); Northern Coast Region 0 Comment
  HSC48315  Angelica tomentosa Brad Klipfel 1973-8-3 303 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  SEINET13943410 Image available Angelica tomentosa W. A. Weber 1964-1 12204 Humboldt Mountain grade between summit of ridge separating Redwood Creek from Hoopa Valley, a few miles west of Hoopa Comment
  CAS-BOT-BC271499  Anisocarpus madioides L. R. Abrams 1916-7-11 6017 Humboldt Mouth of Grizzly Creek on Van Duzen River Comment
  UC1199432  Antennaria suffrutescens Joseph P. Tracy 1934-6-14 13216 Humboldt Horse Mountain 1432 Comment
  HSC28090  Anthoxanthum occidentale J. D. Ackerman, A. M. Montalvo 1973-3-27 37 Humboldt 1.5 mi. N of Manila Comment
  HSC8934  Anthoxanthum odoratum H. E. Parks, S. T. Parks Apr 1952 24444 Humboldt Spruce Cove, Trinidad 61 Comment
  HSC8945  Anthoxanthum odoratum E. W. Styskel 1964-4-28 73 Humboldt End of Davis Sreet, at edge of Eel River in Rio Dell Comment
  SEINET3918448  Anthoxanthum odoratum Gerald T. Rood 1962-5-6 11 Humboldt Kneeland Road ca. 1 mile west of Barry Road.; 0 Comment
  UC1541539  Anthoxanthum odoratum Harold E. Parks May 1933 4301 Humboldt Trinidad, Spruce Cove Spruce Cove; Trinidad, Spruce Cove Comment
  UC582468  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1936-6-27 16003 Humboldt Miranda 91 Comment
  UC902210  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1948-8-8 18086 Humboldt Iaqua school house; Iaqua 609 Comment
  UC1198743  Aphanes occidentalis Joseph P. Tracy 1934-3-11 13149 Humboldt Weitchpec 121 Comment
  UCD143195  Aphanes occidentalis Linda M. Barker 1976-4-30 1413 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC57887  Apocynum androsaemifolium Overton, Butler 1979-7-31 11438 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  SD46627  Apocynum androsaemifolium E. K. Balls, L. W. Lenz 1956-6-12 21661 Humboldt 4.4 miles southwest from Willow Creek, along US 299, Willow Creek to Arcata. 365 Comment
  POM287860  Apocynum androsaemifolium subsp. pumilum Lyman Benson 1929-7-14 s.n. Humboldt S. Fork Eel River Weott Ranger Station Comment
  UC22889  Apocynum cannabinum Chesnut and Drew July 1888 Humboldt Grouse Creek Comment
  UC154172  Apocynum cannabinum Joseph Burtt Davy and Walter C. Blasdale 1899-6-29 5896 Humboldt near Requa Comment
  HSC79437  Aquilegia formosa Kenneth Clark 1980-6-14 662 Humboldt Deadman's Gulch 46 Comment
  UC1196202  Aquilegia formosa Joseph P. Tracy 1926-5-9 7453 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC161578  Aquilegia formosa Joseph P. Tracy 1911-6-4 3222 Humboldt 5 mi from coast (along Little River); Northern Coast Ranges 121 Comment
  HSC46039  Aquilegia formosa var. formosa Catherine Chin 1978-5-5 52 Humboldt 5.1 mi. from Ferndale on Mattole Rd. Comment
  HSC32155  Arabis breweri var. breweri D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5595 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC58087  Arabis divaricarpa var. interposita G. L. Clifton, Griswold 1979-8-1 11996 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC57630  Arabis holboellii var. retrofracta G. L. Clifton, Terry Griswold 1979-7-25 10778 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC99596  Aralia californica Overton, Butler 1979-7-24 14090 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  CAS-BOT-BC167258  Aralia californica Doris K. Kildale 1926-11-14 2860 Humboldt Stephen's Grove near Miranda Comment
  RSA171939  Aralia californica R. F. Thorne 1957-9-2 19010 -a Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC249508  Arbutus menziesii Joseph P. Tracy 1922-4-30 6004 Humboldt Trinity River Valley near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC314647  Arbutus menziesii Joseph P. Tracy 1927-4-10 7895 Humboldt Trinity River Valley near the South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  JEPS109812  Arctostaphylos canescens subsp. sonomensis Dean W. Taylor 2004-4-15 19056 Humboldt Titlow Hill Road, 2.5 miles South of Berry Summit on Hwy 299 1112 Comment
  CAS-BOT-BC23748  Arctostaphylos columbiana Walter Knight; Irja Knight 1988-9-5 6363 Humboldt Bald Hill Road about 21.5 miles from U.S. 101 en route to Hoopa. 929 Comment
  HSC7648  Arctostaphylos columbiana R. D. Modafferi 1965-3-14 10 Humboldt .6 mi. N of Trinidad on Trinity St., about 75 yds. W of road 305 Comment
  RSA622678  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27675 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  UC585920  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15171 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC726576  Arctostaphylos columbiana A. A. Heller 1937-6-12 15918 Humboldt along road paralleling the ocean Bishop Pine Lodge (3 mi n of Trinidad) Comment
  UCD50690  Arctostaphylos columbiana W. L. Jepson 1921-8-11 9410 Humboldt Big Lagoon. 15 Comment
  SEINET11977760  Arctostaphylos columbiana J. P. Tracy 1950-1 19252 Humboldt Grasshopper Peak, Bull Creek State Park Comment
  SEINET11995489  Arctostaphylos columbiana W. Knight, Knight, I. 1988-1 6363 Humboldt Bald Hill Rd about 21.5 mi from US 101 en route to Hoopa 930 Comment
  HSC100246  Arctostaphylos densiflora J. P. Smith, & J. O. Sawyer 2010-5-2 12795 Humboldt Along Hwy. 96, E of Orleans 203 Comment
  HSC100252  Arctostaphylos densiflora J. P. Smith, & J. O. Sawyer 2010-5-2 12809 Humboldt Along Hwy. 96, N of Orleans 140 Comment
  UCD51746  Arctostaphylos hookeri subsp. montana Joseph P. Tracy 1947-7-5 17787 Humboldt Trinity Summit; ridge top one mile west of Mud Springs. 1158 Comment
  RSA632802  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27765 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  RSA633020  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27814 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  RSA633021  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27801 Humboldt Highway 96, 15 km north of Willow Creek. 100 Comment
  UC1198680  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1930-6-15 8757 Humboldt Dobbyn Creek 152 Comment
  UC585900  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1930-8-3 9141 Humboldt on river opposite Buck Mountain; Northern Coast Ranges, Van Duzen River, Dinsmore's Ranch 670 Comment
  UC585968  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1934-7-1 13275 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC40546  Arctostaphylos nevadensis Thomas W. Nelson, Jane P. Nelson 1976-5-23 2528 Humboldt Canyon of Bear Creek, W of Black Lassic 1555 Comment
  HSC44397  Arctostaphylos nevadensis Brad Klipfel 1975-5-24 631 Humboldt Horse Mtn. Comment
  JEPS38787  Arctostaphylos nevadensis W. L. Jepson 1902-7-16 2047 Humboldt Trinity Summit 2133 Comment
  JEPS38954  Arctostaphylos nevadensis Joseph P. Tracy 1932-7-12 10474 Humboldt head of Brett Hole Trinity Summit 1828 Comment
  SEINET11989057  Arctostaphylos nevadensis subsp. knightii R. Gankin, Hildreth, W. R. 1967-1 1179 Humboldt 21.4 mi E of US 101 on Bald Hills Rd (from Orick), French Camp Ridge Comment
  HSC40857  Arctostaphylos patula Thomas W. Nelson 1976-7-9 2990 Humboldt Ridge S of the E peak of the Lassic Peak (Signal peak) group. 1707 Comment
  HSC70990  Arctostaphylos patula Gail Newton 1980-7-15 1577 Humboldt Near Sims Mtn. 1311 Comment
  HSC7703  Arctostaphylos patula J. Pursell 1964-11-1 1112 Humboldt 3 mi. S of Hoopa on Hwy. 96 Comment
  CAS-BOT-BC43978  Arctostaphylos uva-ursi Doris K. Kildale 1927-9-9 3306 Humboldt Big Lagoon Comment
  CAS-BOT-BC47212  Arctostaphylos uva-ursi John Thomas Howell 1954-4-25 29157 Humboldt Little River. Comment
  SEINET2031082 Image available Arctostaphylos uva-ursi Joseph P. Tracy 1901-1 1061 Humboldt Region about Humboldt Bay 0 Comment
  SEINET11987494  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4213 Humboldt Strybing Arboretum, Golden Gate Park, San Francisco, orig. probably from near Samoa Comment
  HSC70967  Arctostaphylos viscida R. York 1980-5-17 540 Humboldt Near Le Perron Peak 1066 Comment
  HSC73157  Arctostaphylos viscida M. A. Baker 1980-5-18 1296 Humboldt Near Black Mtn. 1006 Comment
  UCR141664  Arctotheca calendula J. M. DiTomaso 2000-8-14 s.n. Humboldt W of town of Ferndale, east of Centerville Beach, along Centerville Rd, at Pries Dairy, near Russ Creek 200 Comment
  UCSB15631  Armeria maritima subsp. californica Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa; on peninsula on western side of Humboldt Bay Comment
  HSC100712  Arnica amplexicaulis Carl C. Marshall Jun 1886 273 Humboldt Trail E of Hoopa. Comment
  CAS-BOT-BC82309  Arnica cordifolia Volney Rattan 1882-6-1 s.n. Humboldt unspecified Comment
  UC34161  Arnica discoidea Chesnut and Drew 1888-7-21 Humboldt S. Fork Mt. Comment
  CAS-BOT-BC82429  Arnica discoidea Doris K. Kildale 1927-6-24 3539 Humboldt top of ridge before descent to Shelter Cove Comment
  SEINET3098730 Image available Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt Trinity Summit. Fir woods near Corral Prairie Comment
  RSA46799  Arnica latifolia Doris K. Kildale 1926-4-25 1808 Humboldt Sugar Bowl Mt. near Hoopa Comment
  UC1222998  Artemisia douglasiana Joseph P. Tracy 1947-8-24 17892 Humboldt Meadow at Box Camp; Trinity Summit 1463 Comment
  CAS-BOT-BC93858  Artemisia dracunculus Hubert Jenkins 1943-8-1 s.n. Humboldt Near edge of Eel River in sand. Richardson Grove Comment
  SEINET198593  Artemisia pycnocephala H. E. Parks, S. T. Parks Jun 1952 24495 Humboldt Samoa Comment
  UC1222994  Artemisia pycnocephala Joseph P. Tracy 1947-8-31 17929 Humboldt Samoa Sand Dunes Comment
  HSC93258  Arum palaestinum Gordon Leppig 1998-5-8 755 Humboldt Arcata Marsh and Wildlife Sanctuary, Butchers Slough, 50 m W of Interpretive Center Comment
  RSA183561  Asarum caudatum R. D. Zortman 1963-4-14 18 Humboldt 5 miles NE of Arcata, south of the Mad River, off Warren Ck. Rd. 91 Comment
  UC1103508  Asarum caudatum Joseph P. Tracy 1913-3-30 4033 Humboldt Eureka Comment
  HSC98661  Asarum caudatum Cara Witte 2008-8-5 982 Humboldt Clear Lake. At end of Forest Service Road 6N01B. 1533 Comment
  SEINET6652462  Asarum caudatum J. P. Tracy 1900-5-22 794 Humboldt Vicinity of Eureka Comment
  RSA46483  Asclepias fascicularis Doris K. Kildale 1925-9-7 s.n. Humboldt Klamath at mouth of Dillon Cr. 762 Comment
  HSC1049  Aspidotis densa D. E. Anderson 1965-5-1 3582 Humboldt Along road to Bluff Creek campground, about 3 mi. from its junction with Hwy. 96 Comment
  HSC71671  Aspidotis densa M. A. Baker 1980-6-26 2383 Humboldt Near Sims Creek 610 Comment
  HSC44046  Aspidotis densa Thomas W. Nelson, Jane Nelson 1977-7-1 3547 Humboldt On Ridge N of Bear Cr. 100 m W of Rd. 1S07 1555 Comment
  POM161487  Aster brickellioides Joseph P. Tracy 1918-9-18 5223 Humboldt Trinity Summit. 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
  UCR48599  Aster chilensis R. D. Goeden, Don W. Ricker 1987-9-2 870902- 10 Humboldt Loleta, along Cannibal Road 8 Comment
  CAS-BOT-BC27580  Astragalus agnicidus Henry Tosten 1931-6-7 s.n. Humboldt near Bear Buttes, 4 mi. S of Miranda Comment
  CAS-BOT-BC193142  Astragalus rattanii var. rattanii Volney Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  HSC41268  Asyneuma prenanthoides Brad Klipfel 1974-7-23 462 Humboldt Horse Mtn. Comment
  HSC3825  Asyneuma prenanthoides J. Sandborg, F. Sandborg 1968-7-19 54 Humboldt Bluff Creek near Notice Creek, near road below Notice Creek Bridge. Comment
  UCD136291  Athyrium filix-femina W. L. Jepson 1932-8-8 16529 Humboldt Weott (hill above). Comment
  CAS-BOT-BC69452  Athyrium filix-femina subsp. cyclosorum Doris K. Kildale 1926-8-7 2446 Humboldt Stone Lagoon. Comment
  UCSB30586  Athyrium filix-femina var. cyclosorum Edwards, David 1974-9-2 Humboldt Ca. 10 ft. E. of dirt road, ca. 100 yds. from its jct. with Fickle hill Rd., Arcata 3 Comment
  UCR37541  Athysanus pusillus L. P. Janeway 1983-5-21 300 Humboldt Above Titlow Hill Road. 3.3 mi south of Hwy 299 1250 Comment
  UC162361  Atriplex gmelinii var. gmelinii Joseph P. Tracy 1911-11-5 3555 Humboldt near mouth Mad River Slough (region about Humboldt Bay); Northern Coast Region, Humboldt Bay, Mad River Slough 0 Comment
  HSC4339  Atriplex prostrata Larry Berti 1968-10-26 Humboldt Big Lagoon County Park, SW corner Comment
  UC181262  Avena barbata Joseph P. Tracy 1913-6-13 4114 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  UC526858  Avena barbata Joseph P. Tracy 1930-6-29 8825 Humboldt Buck Mountain Northern Coast Ranges (lower foothills of nw slope) 762 Comment
  UC526701  Avena fatua Joseph P. Tracy 1933-5-20 12229 Humboldt 3 mi s point of cape (sw slopes fronting ocean); Northern Coast Ranges, Cape Mendocino 3 Comment
  HSC36924  Baccharis douglasii Thomas W. Nelson, W. E. Pratt 1975-8-10 2241 Humboldt Along Shively Rd. N of Shively Comment
  UC581762  Baccharis glutinosa Joseph P. Tracy 1933-8-27 13001 Humboldt between Garberville and Harris Garberville (Robertson Ranch) 762 Comment
  UC249855  Baccharis pilularis Joseph P. Tracy 1923-10-6 6565 Humboldt Eureka, around Humboldt Bay Eureka, Humboldt Bay 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
  HSC26396  Baccharis pilularis subsp. pilularis T. O. Osborne 1970-9-16 30 Humboldt Trinidad Bay, Prisoner Rock Comment
  CAS-BOT-BC16363  Barbarea orthoceras Doris K. Kildale 1927-7-22 3828 Humboldt Lassecks Peaks - Coral Goat Camp. 1661 Comment
  HSC58642  Barbarea orthoceras G. L. Clifton, Terry Griswold 1979-7-31 11639 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC99112  Barbarea verna Cara Witte 2008-7-16 903 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile S of intersection with National Forest 1. 1409 Comment
  UC1046539  Bensoniella oregona R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3410 Humboldt on long high ridge between Mad River and Redwood Creek (Bald Mountain ridge) High Prairie; Bald Mountain ridge, btw Mad River and Redwood Creek 1066 Comment
  UC1198388  Berberis aquifolium Joseph P. Tracy 1924-4-27 6641 Humboldt along hwy near Ruby Creek Willow Creek 609 Comment
  HSC73146  Berberis aquifolium var. aquifolium M. A. Baker 1980-5-18 1354 Humboldt Near Black Mtn. 792 Comment
  UC1198384  Berberis aquifolium var. aquifolium Joseph P. Tracy 1948-9-5 18186 Humboldt on ridge 2 mi e Grove's Prairie (3 mi s of Grizzly Camp) 1524 Comment
  BLMAR655  Berberis nervosa Jennifer Wheeler 2012-5-9 655 Humboldt Lacks Creek, Beaver Ridge Road 914 Comment
  CAS-BOT-BC75681  Berberis nervosa C. B. Wolf 1931-8-30 2375 Humboldt 11 miles above Blue Lake on the Lord Ellis Road to Willow Creek. 304 Comment
  HSC28089  Berberis nervosa J. D. Ackerman 1973-4-29 77 Humboldt 2 mi. NE of Kneeland Comment
  HSC92017  Berberis nervosa E. Mackey 1986-10-24 Humboldt Patrick's Point State Park Comment
  HSC104398  Berberis nervosa A. T. Leiser 1980-7-9 Humboldt Redwood National Park; Highway 101 re-route Comment
  CAS-BOT-BC75810  Berberis pinnata Harley P. Chandler 1901-6-1 1277 Humboldt North Coast Ranges. Hupa Indian Reservation. 1097 Comment
  HSC36904  Berberis pinnata J. P. Smith, J. Sawyer, J. Cole 1976-4-18 8613 Humboldt Bald Hills Rd., 17 mi. E of its jct. with Hwy. 101 854 Comment
  BLMAR413  Bidens cernua Clara Sander 2007-8-22 413 Humboldt South Spit, east side of road near "lone tree" 9 Comment
  CAS-BOT-BC412987  Bistorta bistortoides Doris K. Kildale 1928-5-27 5936 Humboldt Kneeland Prairie 853 Comment
  HSC55066  Bistorta bistortoides G. L. Clifton, Griswold 1979-7-31 11638 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  CAS-BOT-BC15801  Boechera acutina Joseph Prince Tracy 1932-7-11 10396 Humboldt Klamath Mountains. Trinity Summit. At Corral Prairie. 1524 Comment
  JEPS53053  Boechera acutina Joseph P. Tracy 1932-7-11 10396 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC1133575  Bolboschoenus maritimus H. S. Yates 1936-6-16 5673 Humboldt 1 mi ne Samoa; Eureka Quad., ne of Samoa Comment
  HSC65854  Boschniakia strobilacea Gail Newton 1980-6-24 602 Humboldt Near Ladder Rock 1570 Comment
  HSC56319  Boykinia major Overton, Butler 1979-8-2 12658 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC20180  Boykinia occidentalis D. E. Anderson 1965-9-5 4095 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  HSC64840  Boykinia occidentalis J. P. Smith 1973-5-26 6861 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC76260  Boykinia occidentalis Teresa Prendusi 1981-7-7 119 Humboldt Near Slate Creek Butte. 1158 Comment
  POM232040  Boykinia occidentalis I. L. Wiggins 1930-7-22 4694 Humboldt Along bank of Redwood Creek btwn Blue Lake and Willow Creek. Comment
  RSA109288  Boykinia occidentalis H. E. Parks, Susan T. Parks 1952-06 24451 Humboldt Spruce Cove, Trinidad. 61 Comment
  RSA12452  Boykinia occidentalis Carl B. Wolf 1934-6-30 5841 Humboldt 4 miles from Shelter Cove on rd to Briceland. 152 Comment
  UC667115  Boykinia occidentalis Joseph P. Tracy 1934-7-22 13484 Humboldt at crossing of the Bridgeville-Kneeland Road North Yager Creek 396 Comment
  HSC37961  Brassica rapa Peter Sorensen 1976-6-12 Humboldt Woodley Island, Humboldt Bay Comment
  HSC8596  Brassica rapa John A. Dubois 1962-5-23 30 Humboldt 15 mi. E of Arcata Comment
  UC581798  Brickellia greenei Joseph P. Tracy 1934-9-5 13655 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1402 Comment
  CAS-BOT-BC145428  Briza maxima Joseph P. Tracy 1930-6-15 8758 Humboldt Alder Point. 152 Comment
  RSA385270  Briza maxima Bonnie C. Templeton 1964-6-13 100901 Humboldt Samoa [sand dunes], west of Arcata. Comment
  SEINET4183111 Image available Briza minor Joseph P. Tracy 1912-6-9 3664 Humboldt Alton 30 Comment
  UCSB16626  Brodiaea elegans subsp. elegans Breedlove, Dennis 1961-7-4 Humboldt 10.9 miles west of Willow Greek on US299 822 Comment
  JEPS5498  Brodiaea stellaris Joseph P. Tracy 1925-5-30 7024 Humboldt on grassy slopes Northern Coast Ranges, McClellan Mountain 822 Comment
  UC1225870  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1942-6-15 17125 Humboldt near Redcrest resort; Englewood 91 Comment
  CAS-BOT-BC144347  Bromus L. R. Abrams 1916-7-11 6012 Humboldt Mouth of Grizzly Creek on Van Duzon River. Comment
  CAS-BOT-BC149451  Bromus briziformis Henry M. Pollard 1948-7-19 s.n. Humboldt River road near Van Fleet Ranch, near Orleans. Comment
  SEINET799035  Bromus carinatus Joseph P. Tracy 1919-1 5159 Humboldt Hill slopes at W. side of Trinity River, near Willow Creek 152 Comment
  UCD58203  Bromus carinatus A. H. Murphy 1951-4-18 s.n. Humboldt Tooby and Prior Ranch, Blocksburg. 457 Comment
  CAS-BOT-BC149569  Bromus carinatus var. carinatus Joseph P. Tracy 1935-6-23 13982 Humboldt Northern Coast Ranges. French Camp Ridge. 1066 Comment
  UC180484  Bromus carinatus var. carinatus Joseph P. Tracy 1913-6-13 4100 Humboldt opposite Buck Mountain (in Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  UC37672  Bromus carinatus var. carinatus J. Burtt Davy 1899-7-30 6179 Humboldt opposite Eureka (North Coast Ranges); North Coast Ranges Comment
  UCD59082  Bromus carinatus var. marginatus Joseph P. Tracy 1950-6-15 18786 Humboldt Mail Ridge. North of Harris 7 miles. 1036 Comment
  BLMAR158  Bromus hordeaceus Donald Hazlett 1994-6-7 158 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC155426  Bromus hordeaceus Doris K Niles 1950-6-1 6 Humboldt Island in Eel River, Niles Field. Comment
  HSC37852  Bromus hordeaceus Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  UC34065  Bromus hordeaceus J. P. Tracy 1901-6-16 1146 Humboldt immediate vicinity of Eureka 0 Comment
  UC37638  Bromus laevipes Joseph Burtt Davy 1899-6-21 5724 Humboldt Hupa Valley, Supply Creek Supply Creek; Hupa Valley, Supply Creek Comment
  UC526932  Bromus sterilis Joseph P. Tracy 1933-6-13 12601 Humboldt Bair's Ranch on Redwood Creek Redwood Creek; North Coast Ranges, , Bair's Ranch 914 Comment
  UC1103350  Bromus tectorum Joseph P. Tracy 1933-5-18 12187 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  UC1103351  Bromus tectorum Joseph P. Tracy 1926-5-2 7423 Humboldt near the South Fork (Northern Coast Ranges, Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  UC526730  Bromus tectorum Joseph P. Tracy 1925-5-30 7039 Humboldt Northern Coast Ranges, Larrabee Valley Larrabee Valley; Northern Coast Ranges, Larrabee Valley 701 Comment
  RSA259560  Bromus vulgaris D. E. Anderson, J. P. Smith 1971-6-28 J- 1231 Humboldt Growing along Mad River ca. 2 mi. south of Blue Lake. Comment
  CAS-BOT-BC36863  Cakile edentula var. edentula Carl B. Wolf 1927-8-29 1217 Humboldt Seacoast, Devil's Gate, south of Cape Mendocino. Comment
  HSC6610  Cakile maritima Francis Winter 1960-5-6 Humboldt Mouth of Mad River, N of Arcata Comment
  CAS-BOT-BC36911  Cakile maritima var. maritima Kenneth Clark 1981-5-24 1395 Humboldt Shelter Cove. 300 yards west of Dead Man's gulch. 3 Comment
  UC1103289  Calamagrostis canadensis Joseph P. Tracy 1935-7-27 14290 Humboldt McKay Prairie Trinity Summit (along creek) 1584 Comment
  UC176676  Calandrinia ciliata Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3580 Humboldt near Hydesville; Northern Coast Region 30 Comment
  UC1103691  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1913-5-11 4073 Humboldt Eureka Northern Coast Region (at Stephen Hill place) 0 Comment
  UC153940  Callitriche marginata J. P. Tracy 1910-5-22 3137 Humboldt Immediate Vicinity of Eureka 0 Comment
  HSC62828  Callitriche stagnalis J. M. DiTomaso 1979-4-21 888 Humboldt Fresh water creek at Clam Beach, 9 mi. N of Arcata. Comment
  HSC1286  Calocedrus decurrens Elrid H. Spinas 1948-5-22 39 Humboldt Horse Mtn. Comment
  HSC76306  Calocedrus decurrens Teresa Prendusi 1981-7-9 224 Humboldt Near Cedar Camp 1256 Comment
  HSC76318  Calocedrus decurrens Teresa Prendusi 1981-7-9 242 Humboldt Near Slate Creek Butte 1122 Comment
  HSC98927  Calocedrus decurrens C. Witte 2008-10-18 1053 Humboldt Forest Service Road 5N04. 1/2 mile south of intersection with National Forest 1. 1623 Comment
  HSC98964  Calocedrus decurrens Cara Witte 2007-9-14 648 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1649 Comment
  UC275510  Calocedrus decurrens Joseph P. Tracy 1924-8-31 6847 Humboldt Klamath River at Bluff Creek Northern Coast Ranges, Klamath River, Bluff Creek 91 Comment
  OBI36660  Calochortus coeruleus David J. Keil 1983-7-2 17309 Humboldt Ca. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mtn Summit Rd Comment
  UC1197673  Calochortus tolmiei Joseph P. Tracy 1921-4-24 5466 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  HSC15330  Calochortus tolmiei D. E. Anderson 1962-5-1 2192 Humboldt 1 mi. E of junction of Redwood Creek road and road to Hoopa Comment
  RSA168945  Calochortus vestae Joseph P. Tracy 1950-6-23 18868 Humboldt Dobbyn Creek, 3 miles northeast of Alderpoint. 213 Comment
  RSA167194  Calycadenia ciliosa Joseph P. Tracy 1948-9-20 18220 Humboldt Hoopa Valley 91 Comment
  CAS-BOT-BC273311  Calycadenia fremontii H. M. Hall 1930-10-1 12922 Humboldt Trinity River at Willow Creek Comment
  SEINET3863989  Calycadenia fremontii G. D. Carr 1974-9-12 785 Humboldt 2.1 mi W of Hwy 299 on Friday Ridge Rd, ca 3.5 mi WSW of Salyer.; 0 458 Comment
  HSC100582  Calypso borealis Carl C. Marshall Apr 1886 198 Humboldt Damp woods. Comment
  UC1196478  Calypso bulbosa Joseph P. Tracy 1918-5-1 4900 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1196474  Calypso bulbosa Joseph P. Tracy 1927-5-15 8062 Humboldt on road to Bair's from Hoopa (at head of Pine Creek, near summit of Hoopa Mountain); Hoopa Mountain, Pine Creek 1066 Comment
  HSC17640  Calyptridium monospermum Doris K. Kildale 1925-8-16 1227 Humboldt Trinity Summit 1829 Comment
  HSC32128  Calyptridium monospermum D. E. Anderson, T. Nelson, S. Dowty 1972-6-14 5604 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  JEPS52522  Calyptridium umbellatum W. L. Jepson 1902-7-16 2040 Humboldt Trinity Summit 2133 Comment
  CDA20594  Calystegia silvatica subsp. disjuncta P. Haggard 2005-9-15 PDR 1368655 Humboldt North Coast; Along banks of Mad River, Arcata. 0 Comment
  RSA394825  Calystegia soldanella E. A. Purer 1932-7-27 4140 Humboldt Samoa Comment
  SEINET12330004  Calystegia soldanella F. H. Utech 1986-1 86 -402 Humboldt Cape Mendocino, along Pacific Ocean 5 Comment
  SEINET3992217  Camassia leichtlinii Unknown 1912-6-30 3717 Humboldt Eureka 61 Comment
  HSC97566  Camassia quamash subsp. breviflora Cara Witte 2008-5-31 150 Humboldt Brays Opening on National Forest 1. 1/2 mile north of intersection with 4N38. 1393 Comment
  NY679562  Camissonia cheiranthifolia subsp. cheiranthifolia H. H. Smith 1911-6-17 3853 Humboldt Vances Samoa. Comment
  RSA167258  Camissonia ovata Joseph P. Tracy 1951-5-5 19392 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town 61 Comment
  UC35372  Camissoniopsis cheiranthifolia subsp. cheiranthifolia W. C. Blasdale 1896-6-3 Humboldt W. Eureka Comment
  SEINET201623 Image available Campanula prenanthoides Joseph P. Tracy 1934-8-23 13600 Humboldt Willow Creek Canyon. 457 Comment
  SEINET10873255  Campanula prenanthoides Sutherland 1976-8-13 SUTHERLAND 27 .13.8.76 Humboldt Bank at mouth of Redwood Creek at South Fork Eel River; Garberville quad. T4S R3E Sec. 10 87 Comment
  UC1326258  Campanula prenanthoides Milo S. Baker 1947-8-8 11925 Humboldt just n Orick (about 10 mi along Rd from Hwy 101 towards Hoopa) 609 Comment
  SEINET10463746  Campanula scouleri Newton 1981-7-23 Newton 2280 Humboldt Pilot Creek quadrangle; near Bug Creek Butte, streamside. 1350 Comment
  SEINET10463751  Campanula scouleri James P. Smith 1977-7-3 Smith, Jr. 9250 Humboldt Six Rivers National Forest: along the road to Onion Lake, just above Blue Lake. T10N R4E Sec. 15 975 Comment
  UC302119  Cardamine angulata Joseph P. Tracy 1926-5-22 7510 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  CAS-BOT-BC37432  Cardamine californica Victor Duran 1933-5-11 3405 Humboldt Van Duzen River near Bridgeville. Comment
  HSC44273  Cardamine californica Barbara Kelly 1977-4-23 299 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground, between campsite and marsh 561 Comment
  HSC6698  Cardamine californica Francis Winter 1960-4-23 Humboldt 1 mi. E of Korbel 30 Comment
  UC162640  Cardamine californica Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5610 Humboldt Bald Mountain North-Western California, Bald Mountain Comment
  CAS-BOT-BC37890  Cardamine oligosperma Alice Eastwood 1907-4-21 21 Humboldt Trinidad. Comment
  UC673286  Cardamine oligosperma Lincoln Constance and Reed C. Rollins 1942-5-11 2871 Humboldt three mi e East Fork Willow Creek; North Coast Ranges, e of East Fork Willow Creek Comment
  HSC6641  Cardamine oligosperma Gerald T. Rood 1962-5-11 3 Humboldt Kneeland Rd., 0.25 mi. E of Barry Rd. Comment
  CAS-BOT-BC38127  Cardamine pensylvanica Joseph P. Tracy 1937-7-2 15401 Humboldt Trinity Summit. Head of Little Hors-Linto Creek. 1371 Comment
  POM232317  Cardionema ramosissimum I. L. Wiggins 1930-7-11 4687 -a Humboldt Near Samoa Comment
  UC1409184  Cardionema ramosissimum Robert F. Thorne and P. Everett 1965-8-5 35155 Humboldt Samoa Dunes 3 Comment
  UCD150616  Cardionema ramosissimum Joseph P. Tracy 1947-7-3 17765 Humboldt at mouth of Little River. 6 Comment
  HSC4144  Cardionema ramosissimum P. W. Shields Apr 1955 Humboldt 5 mi. NW of Arcata Comment
  SEINET201070  Carduus pycnocephalus Joseph P. Tracy 1936-6-28 15008 Humboldt Hungry Hollow on Bald Mt 762 Comment
  RSA167273  Carex amplifolia Joseph P. Tracy 1948-9-5 18193 Humboldt Trinity Summit, head of Little Hors-Linto Creek, less than one mile south of Grizzly Camp. 1341 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
  HSC63285  Carex bolanderi M. A. Baker 1979-6-29 965 Humboldt Hopkin's Creek. 760 Comment
  RSA754380  Carex bolanderi P. F. Zika 2009-6-15 24487 Humboldt S bank of Mad River, near Hatchery Road, S of town of Blue Lake 20 Comment
  HSC44057  Carex bolanderi Thomas W. Nelson, Jane P. Nelson 1977-7-1 3559 Humboldt Along Blanket Creek 1494 Comment
  UC303016  Carex concinnoides Joseph P. Tracy 1926-5-2 7447 Humboldt near Ruby Creek; Northern Coast Ranges, Willow Creek Canyon 609 Comment
  BLMAR357  Carex cusickii Jennifer Anthony-Wheeler 2003-7-23 357 Humboldt Headwaters Forest Reserve, growing in natural pond with large floating rafts of logs 426 Comment
  CAS-BOT-BC530907  Carex debiliformis H. N. Bolander no date on label 6477 Humboldt Red Mountain Comment
  HSC34955  Carex densa Thomas W. Nelson 1975-5-24 1866 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1115812  Carex densa Joseph P. Tracy 1938-6-9 15876 Humboldt Dobbyn Creek 152 Comment
  JEPS79839  Carex densa Joseph P. Tracy 1936-6-3 14847 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
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Nov 1 2009
  UC562257  Carex densa Joseph P. Tracy 1936-6-3 14847 Humboldt Trinity River Valley at Willow Creek 152 Comment
  UC203893  Carex echinata subsp. phyllomanica Joseph P. Tracy 1918-7-21 5083 Humboldt around Humboldt Bay; Northern Coast Ranges, Humboldt Hill 91 Comment
  HSC7163  Carex echinata subsp. phyllomanica Walker 1960-8-16 Humboldt 7 mi., K & K Comment
  SEINET7708306 Image available Carex feta J. P. Tracy 1950-7-6 19010 Humboldt Albee Road; Buck Mountain, 3 mi S of Burr Valley Comment
  UC194817  Carex feta Joseph P. Tracy 1913-6-23 4281 Humboldt opposite Buck Mountain (near pond at summit of ridge between Van Duzen and Mad River); Northern Coast Ranges, Dinsmore's Ranch 1066 Comment
  UC585645  Carex fracta Joseph P. Tracy 1937-7-25 15542 Humboldt head of Little Hors-Linto Creek Trinity Summit 1371 Comment
  UC2020226  Carex gynodynama Joseph P. Tracy 1906-6-24 2508 Humboldt Northern Coast Region, south slope of Humboldt Hill. Comment
  CAS-BOT-BC22315  Carex harfordii Alice Eastwood; John Thomas Howell 1937-6-23 4791 Humboldt Near Dinsmores. Comment
  SEINET7561247 Image available Carex harfordii David Castaner 1989-6-19 10253 Humboldt Gold Bluff Beach at entrance. Comment
  UC562720  Carex hassei Joseph P. Tracy 1927-6-17 8170 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC1103592  Carex hendersonii J. P. Tracy 1899-4-30 312 Humboldt immediate vicinity Eureka 0 Comment
  UC1152061  Carex hendersonii Joseph P. Tracy 1948-6-13 18042 Humboldt halfway between Bridgeville and Blocksburg; Larrabee Creek Comment
  HSC103622  Carex hoodii Thomas W. Nelson, Jane Nelson 1987-6-11 8536 Humboldt Along Forest Service Rd. 13N01, 18 mi. from junction with State Route 96. 1067 Comment
  CAS-BOT-BC7845  Carex infirminervia Joseph Prince Tracy 1935-7-23 14162 Humboldt Trinity Summit. Wooded hillsides, lower end of Brett Hole. 1584 Comment
  HSC102203  Carex integra M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1118 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  CAS-BOT-BC35563  Carex jonesii Joseph Prince Tracy 1935-7-26 14257 Humboldt Trinity Summit, Meadows at Water Dog Lakes 1828 Comment
  CAS-BOT-BC31264  Carex lenticularis var. impressa Joseph Prince Tracy 1932-7-14 10554 Humboldt Trinity Summit, Corral Prairie, in wet meadow. 1584 Comment
  HSC39163  Carex leptopoda D. E. Anderson, J. P. Smith 1971-6-28 - 1240 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  UC562626  Carex luzulina var. luzulina Joseph P. Tracy Jul 16-19 1930 8987 Humboldt McKay camp, South Fork Mountain Northern Coast Ranges 1676 Comment
  CAS-BOT-BC31583  Carex luzulina var. luzulina Joseph Prince Tracy 1942-6-28 17269 Humboldt In bog at Murphy Meadows, Bald Mountain. 975 Comment
  UC249751  Carex mendocinensis Joseph P. Tracy 1924-6-15 6697 Humboldt Northern Coast Ranges. Near Ruby Creek, on the Willow Creek highway. Comment
  UCR246355  Carex mendocinensis Peter F. Zika 2011-7-3 25496 Humboldt Outer North Coast Ranges (NCoRo), Titlow Hill Road, 3.7 road miles SE of Route 299 at Berry Summit, 1 air km SSW of Horse Mountain 1310 Comment
  HSC71111  Carex multicaulis M. A. Baker 1980-5-23 1387 Humboldt Near Buck Mtn. 343 Comment
  UC302097  Carex multicostata Joseph P. Tracy 1913-6-16 4145 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Van Duzen River Valley 762 Comment
  CAS-BOT-BC119547  Carex nudata A. A. Heller 1923-7-10 13795 Humboldt Along the Eel River between Scotia and Pepperwood Comment
  UCR45817  Carex nudata L. P. Janeway 1983-7-23 439 Humboldt Forks of Salmon Q., East side of Klamath River at Ike's Falls River Access, c. 5 mi north of Orleans. 147 Comment
  HSC70471  Carex nudata J. P. Tracy 1911-6-4 3221 Humboldt Along Little River, 5 mi. from coast 122 Comment
  CAS-BOT-BC119386  Carex obnupta Doris Kildale Gillespie 1931-6-7 10650 Humboldt South Fork Mt. Blake Lookout. 1726 Comment
  HSC59577  Carex obnupta Rick Lundquist 1979-5-18 112 Humboldt Clam Beach Ponds 0 Comment
  RSA15497  Carex obnupta Joseph P. Tracy 1934-7-30 13514 Humboldt Dry Lagoon (Along coast in front of South End of Stone Lagoon). 3 Comment
  UC585634  Carex ovalis Joseph P. Tracy 1937-8-7 15617 Humboldt Murphy Ridge Bald Mt. 914 Comment
  CAS-BOT-BC119245  Carex pachystachya Joseph Prince Tracy 1939-7-9 16340 Humboldt Snow Camp 1402 Comment
  UC562659  Carex pachystachya Joseph P. Tracy 1935-7-27 14287 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1103095  Carex pachystachya Joseph P. Tracy 1934-7-12 13374 Humboldt e Big Lagoon 3 Comment
  HSC104441  Carex pansa Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 15 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC90761  Carex pansa Gail Newton 1982-6-5 3586 Humboldt Elk River Wildlife Area, Eureka. Comment
  HSC60292  Carex pansa Phyllis Krieg 1979-5-2 Humboldt Coast Guard sand dunes, Samoa 0 Comment
  JEPS63535  Carex pellita W. L. Jepson 1932-7-27 16439 Humboldt Weott Comment
  HSC78036  Carex rostrata Gail Newton 1980-8-10 2050 Humboldt Near Blake Mtn. 1707 Comment
  UC303011  Carex serratodens Joseph P. Tracy 1926-6-27 7692 Humboldt Horse Mountain Northern Coast Ranges 1219 Comment
  CHSC102857  Carex subbracteata Peter F. Zika 2009-6-16 24497 Humboldt Outer North Coast Range. Above Chezen Road, at junction with Route 299; between Lord-Ellis and Berry summits. 510 Comment
  CAS-BOT-BC115568  Carex tumulicola Alice Eastwood; John Thomas Howell 1937-6-22 4736 Humboldt Near Alder Point Comment
  UC562246  Carex tumulicola Joseph P. Tracy 1932-5-1 9853 Humboldt vicinity Garberville; Redway 121 Comment
  CAS-BOT-BC115541  Carex unilateralis Joseph Prince Tracy 1933-6-9 12539 Humboldt Fortuna, Bed of winter pool. 18 Comment
  UC1103609  Carex vesicaria var. major Joseph P. Tracy 1938-7-7 16033 Humboldt Cold Springs Grouse Mountain 1432 Comment
  UC1056035  Carex viridula var. viridula H. E. Parks September 1935 5214 Humboldt Dry Lagoon Comment
  CDA6948  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt Luke s Prairie, on ridge 1 mile north above Bull Creek, ca. 2 miles west of Dyerville. 0 Comment
  CAS-BOT-BC249127  Castilleja affinis Doris K. Kildale 1927-7-10 3737 Humboldt Gans Prairie Comment
  UC179946  Castilleja affinis subsp. affinis Joseph P. Tracy 1914-5-14 4434 Humboldt Fort Seward; North Coast Ranges 121 Comment
  JEPS66408  Castilleja affinis subsp. litoralis L. R. Heckard with T. I. Chuang 1971-7-1 2668 Humboldt ca 4 mi n bridge across Big Lagoon (along U.S. Highway 101, n of Big Lagoon) 60 Comment
  HSC95070  Castilleja ambigua subsp. humboldtiensis Lila Tauzer 2002-5-3 45 Humboldt Arcata Marsh 0 Comment
  HSC63879  Castilleja arachnoidea M. A. Baker 1979-6-27 928 Humboldt E of Oregon Creek Comment
  UC582494  Castilleja arachnoidea Joseph P. Tracy 1935-7-24 14171 Humboldt near Trinity Summit Ranger Station; Trinity Summit 1828 Comment
  RSA518654  Castilleja litoralis L. R. Heckard, T. I. Chuang 1971-7-1 2667 Humboldt Slope at south end of Freshwater Lagoon, 2 miles southwest of Orick. Comment
  HSC76191  Castilleja miniata Overton, Butler 1979-7-24 9792 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC99292  Castilleja miniata Jimerson, J. Pageau 1979-8-10 718 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  CDA18988  Castilleja miniata subsp. miniata P. Haggard 2000-8-22 PDR 071958 Humboldt Hoopa Valley Reservation; Along Big Hill Rd., Hoopa. 0 Comment
  JEPS10638  Castilleja rubicundula subsp. lithospermoides W. L. Jepson 1934-5-8 16719 Humboldt n of Redway; South Fork Eel River Comment
  RSA517384  Castilleja wightii R. C. Bacigalupi, L. R. Heckard 1964-7-27 8962 Humboldt Shaded bend of road just (1/8 mile) above and east of Shelter Cove. On partly shaded N-facing road bank. Comment
  UC1502116  Ceanothus R. Sutherland 1976-5-11 8 .11-76 Humboldt just outside Sec 32 Sec 32; Pt. Delgada Quad. 609 Comment
  UC1502117  Ceanothus R. Sutherland 1975-7-13 3 .13-75 Humboldt Pt. Delgada Quad. 518 Comment
  UC1502133  Ceanothus R. Sutherland 1975-7-13 2 .13.75 Humboldt Pt. Delgada Quad. 518 Comment
  HSC97479  Ceanothus cordulatus Cara Witte 2007-5-29 135 Humboldt Along National Forest 1 on Kinsey Ridge. 1278 Comment
  UC1198032  Ceanothus cordulatus Joseph P. Tracy 1935-7-14 14092 Humboldt near Clear Lake (ridge); Northern Coast Ranges 1524 Comment
  UC502951  Ceanothus cordulatus Joseph P. Tracy Jul 16 1930-Jul 19 1930 8952 Humboldt near Blake Lookout (South Fork Mt.); Northern Coast Ranges Comment
  CDA36149  Ceanothus cuneatus CDFA Staff Jun 1977 Humboldt Berry Summit. 0 Comment
  JEPS42320  Ceanothus foliosus W. L. Jepson 1902-8-10 2171 Humboldt Comptche to Low Gap 762 Comment
  HSC36675  Ceanothus foliosus var. foliosus R. Sutherland 1975-5-13 11 .13575 Humboldt Brushy flat 509 Comment
  POM282970  Ceanothus incanus Lyman Benson 1929-7-11 1785 Humboldt S of Garberville Comment
  UCD112173  Ceanothus incanus J. E. Street 1950-6-24 s.n. Humboldt Honeydew. Comment
  CAS-BOT-BC63682  Ceanothus integerrimus L. B. Kildale 1927-5-15 3301 Humboldt Petrolia. Comment
  SBBG116570  Ceanothus integerrimus D. Wilken with E. Painter 2003-7-16 16151 Humboldt State Hwy 96, between Muddy and Weitchpec Crks, just E of Weitchpec 70 Comment
  UC1198001  Ceanothus integerrimus Joseph P. Tracy 1921-6-21 5840 Humboldt near Langdon's Gopher Camp Brannon Mtn. 762 Comment
  UC33626  Ceanothus integerrimus Chesnut and Drew 1888-7-25 Humboldt Comment
  SEINET3836772 Image available Ceanothus integerrimus Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-7 15325 Humboldt Ten miles South of Squaw Creek Comment
  CDA36164  Ceanothus integerrimus var. macrothyrsus CDFA Staff 1977-6-21 Humboldt Willow Creek. 0 Comment
  HSC37607  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-7-11 10 .11775 Humboldt Along county rd. 244 Comment
  UC203857  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1918-7-3 4986 Humboldt Wilder Ridge Northern Coast Ranges 457 Comment
  CAS-BOT-BC51221  Ceanothus parryi C. Hart Merriam 1920-8-27 s.n. Humboldt South fork Eel River (10 miles so. of Garberville) Comment
  UC18401  Ceanothus parryi Bolander Jun 1867 6572 bis Humboldt Comment
  CAS-BOT-BC51213  Ceanothus parryi Doris K. Kildale 1926-12-19 2871 a Humboldt South Fork - on South Fork of Eel River 51 Comment
  UC1094482  Ceanothus pumilus R. E. Nelson 1955-5-14 162 Humboldt about 5 mi w Miranda; Quad. 29-C-2, w of Miranda 762 Comment
  BLMAR660  Ceanothus thyrsiflorus Andrew Maguire 2012-5-21 660 Humboldt King range, Smith-Etter road 320 Comment
  CAS-BOT-BC52953  Ceanothus thyrsiflorus Doris K. Kildale 1927-5-14 3290 Humboldt Big Lagoon Comment
  CAS-BOT-BC52991  Ceanothus thyrsiflorus Erin Karnatz; Paul Fearn; Ed Kentner 1994-5-14 50 Humboldt ~2 mi. east of Blue Lake; north side of Hwy 299. 152 Comment
  HSC37064  Ceanothus thyrsiflorus R. Sutherland 1975-5-28 5 .28575 Humboldt Horse Mtn., N Fork Horse Mtn. Creek 457 Comment
  HSC47489  Ceanothus thyrsiflorus Sheila Logan 1978-4-7 11 Humboldt 0.5 mi E of McKinleyville on Murray Rd. Comment
  JEPS42171  Ceanothus thyrsiflorus W. L. Jepson 1932-8-6 16492 Humboldt Weott Comment
  POM118613  Ceanothus thyrsiflorus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC1198000  Ceanothus thyrsiflorus J. P. Tracy 1901-6-23 1166 Humboldt Eureks 0 Comment
  UC170229  Ceanothus thyrsiflorus Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5623 Humboldt near Korbel (Bald Mt.); North Coast Ranges, Bald Mt. Comment
  UC668161  Ceanothus thyrsiflorus Joseph P. Tracy 1937-5-30 15317 Humboldt Bridgeville 198 Comment
  POM203232  Ceanothus velutinus M. S. Jussel 1931-5-2 s.n. Humboldt near Garberville Comment
  UC1198027  Ceanothus velutinus Joseph P. Tracy 1913-7-20 4374 Humboldt Near Three Creeks 1066 Comment
  UC1222951  Centaurea cyanus Joseph P. Tracy 1943-11-28 17456 Humboldt near Alton (Eel River bar at mouth of Van Duzen); Eel River, Van Duzen Comment
  UC204750  Centaurea cyanus Joseph P. Tracy 1918-7-1 4963 Humboldt along river from South Fork to Scotia, Holmes Flat Eel River; North Coast Ranges, , Holmes Flat 60 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
  CDA7306  Centaurea nigra K. E. Frick 1961-8-16 Humboldt Eureka. Near fairgrounds. 0 Comment
  UC582526  Centaurea solstitialis Joseph P. Tracy 1933-8-27 13002 Humboldt 2 to 5 mi e of South Fork (along Eel River); Eel River 45 Comment
  JEPS46937  Centaurium muehlenbergii W. L. Jepson 1932-7-27 16424 Humboldt Bull Creek Comment
  JEPS46936  Centaurium muehlenbergii W. L. Jepson 1927-7-3 12361 Humboldt Meyers road sta South Fork Eel River Comment
  RSA431135  Centaurium muehlenbergii Lyman Benson 1928-7-12 392 Humboldt Weott Ranger Station, South Fork of Eel River; Seaward North Coast Mt. Range. 61 Comment
  BLMAR299  Centaurium tenuiflorum Clara Sander 2002-7-16 299 Humboldt King range, East of Capetown, growing east of wildcat rd 152 Comment
  UC1198614  Centunculus minimus Joseph P. Tracy 1934-6-23 13254 1/2 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  UC1196467  Cephalanthera austiniae Joseph P. Tracy 1948-8-15 18149 Humboldt on ridge 2 mi. e. Grove's Prairie (Trinity Summit); Trinity Summit 1524 Comment
  HSC98133  Cephalanthera austiniae Cara Witte 2007-6-27 372 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Near intersection with 4N32B 1516 Comment
  UC1196466  Cephalanthera austiniae Joseph P. Tracy 1911-7-12 3523 Humboldt mt. slopes along rd. near Three Creeks; Northern Coast Ranges 762 Comment
  UC8236  Cerastium arvense J. Burtt Davy 1899-6-9 5366 Humboldt Chamisse Ridge n. of Harris; Chamisse Ridge Comment
  HSC4109  Cerastium fontanum subsp. vulgare D. E. Anderson 1962-5-1 2201 Humboldt 1 mi. W of Hoopa Comment
  HSC98809  Cerastium fontanum subsp. vulgare Cara Witte 2008-8-5 986 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1569 Comment
  HSC74573  Cercis occidentalis M. A. Baker 1980-5-17 1245 Humboldt Near Le Perron Peak 1066 Comment
  CAS-BOT-BC135533  Cercocarpus betuloides var. betuloides L. R. Abrams; Rimo Bacigalupi 1922-6-25 8226 Humboldt 6 mi. north of Garberville Comment
  POM161038  Chamaecyparis lawsoniana Joseph P. Tracy 1926-6-27 7672 Humboldt Horse Mountain 1463 Comment
  RSA0038422  Chamaecyparis lawsoniana James R. Shevock 1972-3-26 1469 Humboldt Along Highway 299. 365 Comment
  HSC69761  Chamaesyce maculata Thomas W. Nelson, Jane P. Nelson 1977-9-4 3747 Humboldt Willow Creek Comment
  UC1198975  Chamaesyce serpyllifolia Joseph P. Tracy 1925-11-1 7299 Humboldt along Eel River (from South Fork to Scotia, Shively); Northern Coast Ranges 60 Comment
  UC275332  Chamaesyce serpyllifolia Joseph P. Tracy 1923-9-16 6555 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC502947  Chamaesyce serpyllifolia Joseph P. Tracy 1930-10-12 9208 Humboldt Eel River Northern Coast Ranges (Alton to Fortuna) 15 Comment
  HSC49056  Chamerion angustifolium subsp. circumvagum Patricia Shesgreen 1978-8-2 124 Humboldt Arcata Community Forest, Arcata; 200 yds. N of field house on top of hill overlooking baseball field Comment
  UC1122499  Chamerion angustifolium subsp. circumvagum H. S. Yates 1936-6-23 5869 Humboldt 3 mi se Scotia; Rohnerville Quadrangle Comment
  UC314615  Chamerion angustifolium subsp. circumvagum Joseph P. Tracy 1926-7-25 7755 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC562419  Chamerion angustifolium subsp. circumvagum Joseph P. Tracy 1935-7-28 14322 Humboldt head of Devil's Hole Trinity Summit 1828 Comment
  JEPS31528  Chamerion angustifolium subsp. circumvagum Lincoln Constance 1934-6-18 899 Humboldt swamp border of N. Dyerville Flat South Fork Eel River, Bull Creek Region (near S. Fork R.R. Sta. and P.O.) Comment
  JEPS39308  Chamerion angustifolium subsp. circumvagum W. L. Jepson 1927-7-3 12360 Humboldt Weott South Fork Eel River Comment
  HSC82123  Cheilanthes gracillima Thomas W. Nelson 1979-7-11 4997 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC99137  Cheilanthes gracillima C. Witte 2008-10-18 1062 Humboldt Horse Mountain Botanical Area. Approxmiately 1 mile north of Horse Mountain Communication Towers. Forest Service Road 6N66 1456 Comment
  UCD97749  Chenopodium album Linda M. Barker 1976-8-24 1680 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC673038  Chenopodium atrovirens Joseph P. Tracy 1932-7-13 10500 Humboldt Corral Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC473030  Chenopodium macrospermum var. farinosum Malcom A. Nobs; S. Galen Smith 1949-8-11 1340 Humboldt Marsh at eastern shore of Stone Lagoon Comment
  RSA44459  Chenopodium multifidum H. M. Pollard 1947-8-30 s.n. Humboldt North Road along Klamath River near Redcap Creek. Orleans region. Comment
  CAS-BOT-BC451380  Chimaphila menziesii L. B. Kildale 1930-8-10 10530 Humboldt Snow Camp, head of Redwood Creek Comment
  HSC48840  Chimaphila menziesii Brad Klipfel 1973-7-15 197 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC54858  Chimaphila menziesii G. L. Clifton, Griswold 1979-7-25 10754 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC41338  Chimaphila umbellata Brad Klipfel 1974-9-7 562 Humboldt Horse Mtn., above E fork of Willow Creek Comment
  HSC54505  Chimaphila umbellata Overton, Butler 1979-7-23 9403 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  UC21655  Chimaphila umbellata Bolander 6544 Humboldt Parkers Station, Eureka Trail Comment
  RSA249505  Chimaphila umbellata subsp. occidentalis R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-5 35145 Humboldt King Mountain 1220 Comment
  CHSC19746  Chloris pycnothrix D. E. Anderson 1970-1-20 Humboldt In the Humboldt State College Greenhouses. Seed source: Ethiopia. Comment
  POM270419  Chrysolepis chrysophylla Joseph P. Tracy 1933-8-6 12933 Humboldt French Camp Ridge. 1067 Comment
  HSC99490  Chrysolepis chrysophylla var. chrysophylla K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 149 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
  JEPS58688  Chrysolepis chrysophylla var. chrysophylla W. L. Jepson 1902-6 2150 Humboldt near McKee's (sw corner Humboldt County) 548 Comment
  HSC97121  Cicuta douglasii Gordon Leppig 1998-8-23 1078 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  JEPS14226  Cicuta douglasii Joseph P. Tracy 1927-8-22 8345 Humboldt near High Prairie (on Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  UC180176  Cicuta douglasii Joseph P. Tracy 1914-9-6 4612 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  UCD127358  Cicuta douglasii Bellue Goodwin 1932-9-28 s.n. Humboldt Arcata. Comment
  HSC56098  Circaea alpina subsp. pacifica G. L. Clifton 1979-7-31 11809 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC1103565  Circaea alpina subsp. pacifica Joseph P. Tracy 1932-7-15 10585 Humboldt ridges e. Corral Prairie; Klamath Mts., Trinity Summit 1828 Comment
  RSA66880  Circaea alpina subsp. pacifica P. A. Munz 1951-7-15 16552 Humboldt 5 miles N of Willow Creek, on Raccoon Creek 305 Comment
  CAS-BOT-BC284403  Cirsium arvense Alice Eastwood 1921-7-21 10659 Humboldt Carlotta Comment
  CAS-BOT-BC284404  Cirsium arvense L. R. Abrams 1927-8-31 12059 Humboldt Arcata 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
  CDA1546  Cirsium remotifolium T. C. Fuller 1958-6-17 600 -58 Humboldt Wildcat Ridge near Bunker Hill. (Mattole Rd., S of Ferndale). 0 Comment
  POM271818  Clarkia amoena subsp. huntiana Lyman Benson 1929-7-19 1865 Humboldt Dyerville to Matole River. Comment
  CAS-BOT-BC163504  Clarkia amoena subsp. huntiana J. H. Thomas 1949-6-12 898 Humboldt At entrance to Six Rivers National Forest between Martins Ferry and Orleans Comment
  HSC48148  Clarkia amoena subsp. huntiana Thomas W. Nelson, Jane P. Nelson 1978-7-3 4410 Humboldt Along Hwy. 36, 100 m E of Dinsmore 610 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
  SDSU8656  Clarkia amoena subsp. huntiana D. F. Howe 1964-8-10 3951 Humboldt 7.5 miles from Ferndale on road to Petrolia. Comment
  UC169900  Clarkia concinna subsp. concinna Mrs. M. H. Manning 1901-1 75 Humboldt near Hupa Comment
  JEPS43640  Clarkia gracilis subsp. sonomensis Lincoln Constance 1934-5-23 618 Humboldt upper end Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  CAS-BOT-BC172516  Clarkia purpurea subsp. quadrivulnera Alice Eastwood; John Thomas Howell 1937-6-22 4722 Humboldt Near Harris Comment
  UC144078  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1909-7-31 3030 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC35399  Clarkia purpurea subsp. quadrivulnera Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  HSC43847  Clarkia purpurea subsp. viminea Maralyn O'Meara 1974-7-17 556 Humboldt Kneeland Comment
  JEPS43563  Clarkia purpurea subsp. viminea W. L. Jepson 1902-7-4 1982 Humboldt beneath The Maul Oaks; Hupa Valley Comment
  CAS-BOT-BC439097  Claytonia cordifolia Joseph P. Tracy 1932-7-15 10583 Humboldt Trinity Summit. Ridges East of Corral Prairie 1828 Comment
  HSC100605  Claytonia perfoliata Carl C. Marshall Apr 1886 105 Humboldt Damp places. Comment
  SEINET6903113  Claytonia perfoliata Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  HSC39620  Claytonia rubra subsp. rubra Thomas W. Nelson 1976-6-15 2723 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  HSC98515  Claytonia rubra subsp. rubra Cara Witte 2007-5-8 6 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 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
  CHSC32852  Claytonia sibirica Lora L. Anderson 1981-4-26 13 Humboldt Small population ca. 0.5 mi e of ocean (Moon-Stone Beach) 0.5 mi w of Hwy 101, 11.5 mi n of Arcata. 0 Comment
  HSC55187  Claytonia sibirica G. L. Clifton, Griswold 1979-8-2 12246 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC59580  Claytonia sibirica Rick Lundquist 1979-4-6 1 Humboldt Arcata, SE Corner of 7th and Union St. 24 Comment
  HSC99422  Claytonia sibirica K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 71 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  UCD20385  Claytonia sibirica K. Esau 1935-5-22 s.n. Humboldt Fort Seward. Comment
  UCR275110  Claytonia sibirica Charity A. Hartshorn 2016-5-14 32 Humboldt Arcata Community Forest 244 Comment
  HSC97175  Claytonia sibirica Erin Lonergan, Benjamin Hart 2007-6-13 8 Humboldt 1 mi. E of FS Rd. NF1 on FS Rd. 5N04 1524 Comment
  SEINET202283  Claytonia sibirica J. P. Tracy 1950-7-2 18960 Humboldt Fern Spring Happy Camp Mt. in Trinity Summit Range 6 mi NE of Hawkins Bar 1280 Comment
  CAS-BOT-BC92597  Clematis ligusticifolia Carl D. Duncan 1920-9-21 314 Humboldt On floor of Hoopa Valley. Comment
  CAS-BOT-BC499340  Clintonia andrewsiana Doris K. Kildale 1926-3-26 1638 Humboldt Old Kneeland Road 60 Comment
  RSA66979  Clintonia andrewsiana E. K. Balls 1951-5-8 16512 Humboldt 3.5 miles south of Myers, Highway 101. Comment
  UCD139622  Clintonia andrewsiana T. E. Weier 1942-5-22 s.n. Humboldt near Dyerville, Highway 101. Comment
  HSC100555  Clintonia uniflora Carl C. Marshall Jun 1886 316 Humboldt Trail E of Hoopa. Comment
  UC1222545  Clintonia uniflora Joseph P. Tracy 1951-6-26 19556 Humboldt Snow Camp 1402 Comment
  UC30059  Clintonia uniflora Joseph Burtt Davy 1899-6-19 5656 Humboldt Hoopa Mountain Comment
  UC168981  Collinsia grandiflora Harley P. Chandler 1901-6-14 1500 Humboldt between Orleans Somes Bar Klamath River; , North Coast Ranges 426 Comment
  UC1196760  Collinsia parviflora Joseph P. Tracy 1929-7-4 8623 Humboldt French Camp Ridge 1066 Comment
  UC1196761  Collinsia parviflora Joseph P. Tracy 1913-6-14 4122 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC48992  Collinsia rattanii M. A. Baker 1979-5-23 757 Humboldt Comment
  UC1196824  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1904-4-3 2007 Humboldt immed. vicinity Eureka 0 Comment
  HSC100664  Collinsia tinctoria Carl C. Marshall May 1887 418 Humboldt Spruce Grove region. Comment
  HSC81772  Collinsia torreyi var. torreyi Thomas W. Nelson, James Nelson 1980-6-10 5409 Humboldt Along Swayback Ridge 4-wheel drive road, 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  UC60868  Collomia grandiflora Harley P. Chandler June, 1901 1361 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  SEINET12278705  Collomia tinctoria H. P. Chandler 1901-1 1475 Humboldt Klamath River 427 Comment
  SEINET10317252 Image available Collomia tracyi M. A. Baker 1980-6-28 Humboldt Trail to Mad River Buttes Comment
  CAS-BOT-BC180241  Comandra umbellata subsp. californica Doris K. Kildale 1926-5-2 1867 Humboldt Willow Brook, rocky terrace on Trinity River 152 Comment
  POM278793  Convolvulus arvensis Lyman Benson 1928-7-12 479 Humboldt Weott Ranger Station. 61 Comment
  HSC10926  Corallorhiza maculata D. E. Anderson 1965-5-15 3687 Humboldt About 7 mi. N of Hoopa on Bloody Camp Prairie Rd. Comment
  RSA46849  Corallorhiza maculata Doris K. Kildale 1927-7-10 3733 Humboldt Gans Prairie, Bald Hills. Comment
  UC1196453  Corallorhiza maculata Joseph P. Tracy 1926-5-15 7497 A Humboldt near Ashfield Butte; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC14984  Corallorhiza maculata Chesnut and Drew 1888-7-9 Humboldt Campbell's Comment
  HSC90429  Cordylanthus maritimus subsp. palustris Jean Hanson 1980-6-22 98 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka: W side of dike on NW side of island. Comment
  RSA244999  Cordylanthus maritimus subsp. palustris William J. Ferlatte, B. D. Rogers 1966-8-15 3125 Humboldt 6 miles east of Korbel; Cutoff Red wood Comment
  UC582559  Cordylanthus maritimus subsp. palustris Joseph P. Tracy 1933-8-22 12991 Humboldt mouth of Eel River (in salt marsh) 3 Comment
  UC165018  Corethrogyne filaginifolia Joseph P. Tracy 1909-7-18 3016 Humboldt Humboldt Bay Comment
  HSC104440  Cornus canadensis Cheri Sanville, Bianca Hayashi Jun 2012 Humboldt North of Snow Camp Mountain Comment
  UC183574  Cornus glabrata Joseph P. Tracy 1913-6-21 4251 Humboldt Van Duzen R. just below Low Gap; Northern Coast Ranges, Van Duzen R. 762 Comment
  CAS-BOT-BC212019  Cornus nuttallii Carl B. Wolf 1927-8-28 1165 Humboldt In the valley of the Hoopa Indian Reservation. Comment
  CAS-BOT-BC212020  Cornus nuttallii H. L. Mason 1928-7-14 4897 Humboldt East fork of Eel River near Garberville Comment
  UC183588  Cornus nuttallii Joseph P. Tracy 1913-6-26 4345 Humboldt opposite Buck Mt. (Dinsmore's Ranch, Van Duzen R. Valley); Northern Coast Ranges, Van Duzen R. Valley, Dinsmore's Ranch 762 Comment
  UC502978  Cornus nuttallii Joseph P. Tracy 1932-10-9 10869 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  SEINET12136798  Cornus nuttallii J. P. Tracy 1950-1 19384 Humboldt Trinity River Valley at Willow Creek 152 Comment
  HSC6423  Cornus sessilis H. E. Parks, S. T. Parks 1941-7-5 11492 Humboldt Horse Linto Creek. Comment
  RSA394654  Cornus sessilis Jane Turner, Francis M. Ball, B. L. Turner 1962-7-10 1144 Humboldt East Fork Willow Creek Forest Camp, Hwy 299 ca. 5 mi. W of Willow Creek in Six Rivers National Forest. 457 Comment
  SJSU2584  Cornus sessilis H. L. Buckalew 1962-7-2 Humboldt junction of Willow Cr & E Fork Willow Cr on Hwy 299 Comment
  UC502984  Cornus sessilis Joseph P. Tracy 1927-3-27 7857 Humboldt near S. Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  UC902052  Corylus californica Joseph P. Tracy 1949-8-7 18435 Humboldt Trinity Summit, near Box Camp 1463 Comment
  UC902054  Corylus californica Joseph P. Tracy 1949-2-27 18265 Humboldt Kneeland Prairie 762 Comment
  HSC58224  Corylus cornuta subsp. californica Walter Overton 1979-8-1 12367 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC5429  Cotula coronopifolia Rollin Sparrowe 1962-4-28 4 Humboldt In sloughs N and S of road Comment
  CAS-BOT-BC427575  Crassula aquatica Joseph P. Tracy 1935-5-30 13919 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC302105  Crassula connata var. eremica Joseph P. Tracy 1926-5-9 7461 Humboldt valley of S. Yager Creek Northern Coast Ranges, valley of S. Yager Creek 762 Comment
  HSC58161  Crepis acuminata G. L. Clifton, Griswold 1979-8-2 12224 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  UC1051582  Crepis capillaris Joseph P. Tracy 1948-9-20 18221 Humboldt Mill Creek Hoopa Valley 106 Comment
  UC581727  Crepis capillaris Joseph P. Tracy 1934-7-4 13300 Humboldt Lawrence Creek; at crossing of the Kneeland road 457 Comment
  CAS-BOT-BC291483  Crepis capillaris Joseph P. Tracy 1948-9-26 18299 Humboldt Fickle Hill, 6 miles southeast of Arcata 609 Comment
  CAS-BOT-BC291484  Crepis capillaris Roxana S. Ferris 1955-7-11 12977 Humboldt Near Blue Lake Comment
  HSC74758  Crepis occidentalis subsp. occidentalis Gail Newton 1981-7-23 2274 Humboldt Near Bug Creek Butte 1494 Comment
  CAS-BOT-BC290848  Crepis pleurocarpa Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC32291  Crepis pleurocarpa J. O. Sawyer 1970-6-24 2221 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC72961  Crepis pleurocarpa Gail Newton 1980-7-14 1481 Humboldt Near Last Chance Ridge. 1219 Comment
  RSA43685  Crepis setosa H. M. Pollard 1947-8-21 s.n. Humboldt roadside between Orleans and Boyse Creek Comment
  UC525588  Cryptantha flaccida Joseph P. Tracy 1927-7-17 8286 Humboldt near Bug Creek (on Mad River); North Coast Ranges, Mad River 457 Comment
  SBBG28775  Cryptantha torreyana L. Constance, R. C. Rollins 1942-5-11 Humboldt Hoopa Valley 5 mi S of Hoopa 121 Comment
  UC562673  Cuscuta californica Joseph P. Tracy 1932-7-13 10496 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC562476  Cuscuta campestris Joseph P. Tracy 1925-8-2 7220 Humboldt Big Lagoon 3 Comment
  RSA249518  Cuscuta salina R. F. Thorne, P. C. Everett 1965-8-7 35206 Humboldt Samoa Peninsula. 0 Comment
  UC1197870  Cuscuta subinclusa Joseph P. Tracy 1927-7-17 8287 Humboldt near Bug Creek (Ahlgren's, on Mad River); Mad River 457 Comment
  HSC66829  Cycladenia humilis M. A. Baker 1980-7-24 3197 Humboldt Near Orleans Mtn. 1625 Comment
  UCD60113  Cynodon dactylon Joseph P. Tracy 1939-8-18 16427 Humboldt Eureka. 15 Comment
  HSC3643  Cynoglossum grande S. S. Stutz 1963-4-21 26 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  UC1239625  Cynoglossum grande Joseph P. Tracy 1933-6-13 12564 Humboldt near summit on rd. from Hoopa westward to Bair's (Hoopa Mt.); Hoopa Mt. 1066 Comment
  UCD119159  Cynoglossum grande D. W. Cooper 1971-5-11 s.n. Humboldt On Charles Moore's ranch on Kneeland Ridge, ca. 10 miles east of Eureka. Comment
  HSC100403  Cynoglossum grande Carl C. Marshall May 1886 160 Humboldt Vicinity of Humboldt Bay. Comment
  HSC65448  Cynosurus echinatus J. P. Smith 1973-5-26 6795 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC97497  Cynosurus echinatus Cara Witte 2007-5-31 153 Humboldt Along National Forest Rte. 1, near Kinsey Ridge, 1.5 miles north of intersection with 4N09 1299 Comment
  UC1103243  Cynosurus echinatus Joseph P. Tracy 1950-6-8 18732 Humboldt Bear River Ridge 609 Comment
  UCD60184  Cynosurus echinatus J. Street 1950-5-28 s. n. Humboldt Alder Point. Comment
  HSC7208  Cyperus acuminatus John H. Kynoch 1966-9-23 406 Humboldt Near Trinity River and Willow Creek 142 Comment
  SEINET200972  Cyperus aristatus Joseph P. Tracy 1916-9-5 4773 Humboldt S fork of Eel River 4 miles above the mouth. 61 Comment
  UC668033  Cyperus eragrostis Joseph P. Tracy 1937-8-3 15612 Humboldt along Mad R. near Blue Lake; Mad R. 15 Comment
  CAS-BOT-BC114369  Cyperus erythrorhizos Henry M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  POM89790  Cyperus erythrorhizos Joseph P. Tracy 1920-8-15 5364 Humboldt Klamath River, at mouth of Bluff Creek 152 Comment
  CAS-BOT-BC113832  Cyperus niger var. capitatus Joseph Prince Tracy 1938-8-14 16113 Humboldt South Fork of Trinity River, mountain slopes west of its mouth. 304 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
  HSC97609  Cystopteris fragilis Cara Witte 2007-6-4 203 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC42487  Cystopteris fragilis C. C. Marshall 1888-1 Humboldt Comment
  UC440178  Cystopteris fragilis Joseph P. Tracy 1920-5-18 5317 Humboldt along Eel River from S Fork to Scotia (Bull Creek); Northern Coast Ranges 60 Comment
  UCSB29351  Cystopteris fragilis Phelps, M. 1972-3-22 Humboldt 0.7 mi. along Benbow Drive north, 50 yds. West of roadside in creekbed, Benbow 167 Comment
  CHSC19747  Cytisus scoparius Gary J. Stebbings 1970-2-2 1 Humboldt Along Big Lagoon Park road across from the store. Comment
  RSA728072  Dactylis glomerata Gary D. Wallace 1979-7-24 1864 Humboldt Brush Mountain Lookout, SW of the town of Willow Creek. 1216 Comment
  UC552734  Danthonia californica Joseph P. Tracy 1935-7-23 14137 Humboldt Corral Prairie Trinity Summit 1584 Comment
  SEINET201006 Image available Danthonia pilosa Joseph P. Tracy 1941-8-17 16994 Humboldt Hungry Hollow on Bald Mt. 762 Comment
  CAS-BOT-BC420357  Darmera peltata Doris K. Kildale 1928-6-24 5247 Humboldt Redwood Creek at Berry's Comment
  UC505103  Datisca glomerata Joseph P. Tracy 1932-9-18 10805 Humboldt Blue Slide on Van Duzen River Blue Slide; Northern Coast Ranges, Van Duzen River, Blue Slide 91 Comment
  HSC71592  Daucus carota M. A. Baker 1980-6-26 2403 Humboldt Near Sims Creek 610 Comment
  UC1197350  Daucus pusillus J. P. Tracy 1901-7-29 1228 Humboldt immediate vicinity Eureka (hillside in Connick's Field) 0 Comment
  UC1197351  Daucus pusillus J. P. Tracy 1899-7-22 275 Humboldt Eureka Comment
  HSC102079  Delphinium decorum subsp. tracyi M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 981 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  SJSU3556  Delphinium decorum subsp. tracyi R. D. Spadoni 1965-5-1 45 Humboldt c. 10 mi SE of Bridgeville on State Rte 36 533 Comment
  UC183704  Delphinium decorum subsp. tracyi Joseph P. Tracy 1913-6-17 4171 Humboldt near the summit Northern Coast Ranges, Buck Mountain 1676 Comment
  HSC24971  Delphinium decorum subsp. tracyi Gerald T. Rood 1962-5-11 6 Humboldt Knneland Rd. 1.0 mi. W of Barry Rd. Comment
  HSC96221  Delphinium decorum subsp. tracyi Eric Schori, Kazuyuki Ishimaru 2005-6-3 2 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment
  HSC98907  Delphinium nudicaule Cara Witte 2007-5-23 106 Humboldt Near Grouse Mtn. Along 4N32. Approximately 0.5 mi. S of intersection with 5N04 and 4N32E. 1398 Comment
  POM126514  Delphinium nudicaule Joseph P. Tracy 1922-4-30 6012 Humboldt Trinity River Valley, near Willow Creek. 152 Comment
  HSC74385  Delphinium nuttallianum M. A. Baker 1980-6-28 2471 Humboldt Near Mad River Buttes 1445 Comment
  HSC24424  Delphinium trolliifolium R. Spellenberg 1965-6-14 1131 Humboldt 3.5 mi. S of Kneeland, 1.5 mi. N of junction with Barry Rd. Comment
  HSC35350  Delphinium trolliifolium A. M. Montalvo, J. D. Ackerman 1975-6-22 489 Humboldt 6.4 mi. W of Dinsmore on Hwy. 36 Comment
  HSC36241  Delphinium trolliifolium John Rehling 1975-5-12 72 Humboldt 4 mi. S of Orick on Hwy. 101 Comment
  UC668069  Delphinium trolliifolium Joseph P. Tracy 1935-6-23 14000 Humboldt near Coyote Peak; French Camp Ridge 1066 Comment
  CAS-BOT-BC16944  Delphinium variegatum subsp. variegatum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  UCD61160  Deschampsia cespitosa Joseph P. Tracy 1942-6-15 17128 Humboldt Englewood, Natural prairie, near Redcrest resort. 91 Comment
  UCD61243  Deschampsia cespitosa Linda M. Barker 1976-7-5 1645 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC96496  Deschampsia cespitosa subsp. cespitosa Gordon Leppig 1998-7-19 983 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  LA10879  Deschampsia danthonioides Joseph P. Tracy; 1935-6-23 13969 Humboldt 1066 Comment
  RSA10094  Deschampsia danthonioides Joseph P. Tracy 1932-7-14 10538 Humboldt Klamath Mountains, Trinity Summit; At Corral Prairie 1524 Comment
  CAS-BOT-BC201778  Deschampsia elongata Doris K. Kildale 1928-7-1 5309 Humboldt French Camp - Bald Hills - Orick - Martin's ferry road Comment
  HSC103072  Deschampsia elongata Sydney Carothers 2014-6-12 13 Humboldt Six Rivers National Forest, Lassics Botanical Area, Red Lassic. Near upper pond and rustic camp site. 1706 Comment
  HSC37256  Deschampsia elongata Lon Hall 1975-6-19 393 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  HSC74436  Deschampsia elongata Gail Newton 1980-8-10 2067 Humboldt Near Blake Mtn. 1707 Comment
  UC534987  Deschampsia elongata H. E. Parks May 1931 3646 a Humboldt Big Lagoon Comment
  SEINET181183 Image available Deschampsia elongata Bassett Maguire, R Maguire; CB Maguire 1934-6-8 15070 Humboldt Bolling Grove State Park ; Under redwoods Comment
  UC1198795  Descurainia incana Joseph P. Tracy 1935-7-22 14128 Humboldt Corral Prairie Trinity Summit (along trail) 1584 Comment
  JEPS53431  Descurainia pinnata W. L. Jepson 1902-7-16 2049 a Humboldt Trinity Summit Comment
Read comments
Jan 17 2008
  CHSC95018  Dicentra formosa K. Lang; J. Lang 2005-3-14 28 Humboldt Trinidad, N. California coast 51 Comment
  HSC76359  Dicentra formosa Denis Kearns 1981-7-8 164 Humboldt Near Bluff Creek 622 Comment
  RSA0056407  Dicentra formosa James R. Shevock 1971-5-29 1139 Humboldt Trinity Hwy, 229. 243 Comment
  UC1586878  Dicentra formosa Juha Pykala and D. H. Norris 1987-6-10 1525 Humboldt about 1-2 mi s Onion Lake (on Onion Lake Road); Six Rivers National Forest 1300 Comment
  UCD170583  Dicentra formosa Gordon Leppig 1998-3-27 730 Humboldt Quarry Rd. off Jacoby Creek. Under Jacoby Creek Bridge. 97 Comment
  CAS-BOT-BC402407  Dicentra formosa subsp. formosa L. R. Abrams; R. Bacigalupi 1922-6-25 8284 Humboldt Big Lagoon south of Orick Comment
  POM87661  Dicentra formosa subsp. formosa L. R. Abrams, R. Bacigalupi 1922-6-25 8284 Humboldt Big Lagoon, back of Orick Comment
  HSC96162  Dicentra pauciflora Laurel Goldsmith, Wanda Naylor 2005-6-15 12 Humboldt 1 mi. SE of Grouse Mtn. on unnamed F.S. road 1400 Comment
  POM126098  Dichanthelium acuminatum var. fasciculatum Joseph P. Tracy 1900-8-26 925 Humboldt At Eureka 0 Comment
  HSC48790  Dichelostemma capitatum subsp. capitatum Brad Klipfel 1975-6-17 664 Humboldt Along Titlow Hill Rd. Comment
  HSC81657  Dichelostemma capitatum subsp. capitatum Thomas W. Nelson, Jane P. Nelson 1980-7-13 6061 Humboldt Along the rd. from Dinsmore to Anderson Ford-McKeown Ranch rd. 762 Comment
  HSC73662  Dichelostemma ida-maia M. A. Baker 1980-7-15 2975 Humboldt Near Whiting Ridge. 1341 Comment
  CAS-BOT-BC501027  Dichelostemma ida-maia Louise A. Boyd; Katherine Donahoe 1923-5-1 s.n. Humboldt Unspecified Comment
  RSA46864  Dichelostemma ida-maia Doris K. Kildale 1927-7-10 3735 Humboldt Gans Prairie, Bald Hills. Comment
  RSA70148  Dichelostemma ida-maia F. W. Peirson 1926-7-12 7030 Humboldt W slope of Coast Range back of Orick. Comment
  HSC60040  Dichelostemma multiflorum M. A. Baker 1977-6-6 373 Humboldt Hoopa Comment
  UC562293  Dichondra donelliana Joseph P. Tracy 1926-8-12 7764 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  POM89789  Digitaria sanguinalis Joseph P. Tracy 1919-9-13 5195 Humboldt Trinity River Valley. Near Willow Creek. 152 Comment
  UC212865  Digitaria sanguinalis Joseph P. Tracy 1919-9-13 5195 Humboldt Trinity River Valley near Willow Creek; Northern Coast Ranges, Trinity River Valley nr Willow Creek 152 Comment
  CAS-BOT-BC153241  Diplacus kelloggii Doris K. Kildale 1928-5-19 5179 Humboldt Chalk Mountain Comment
  UC1197658  Disporum hookeri Joseph P. Tracy 1937-7-2 15409 Humboldt Trinity Summit, head of Little Hors-Linto Creek Little Hors-Linto Creek; Trinity Summit, Little Hors-Linto Creek 1371 Comment
  JEPS55589  Disporum smithii W. Roderick 1961-6-28 Humboldt 5.4 road mi ne of Weitchpec (Klamath River); Klamath River Comment
  POM188116  Disporum smithii Marcus E. Jones 1931-7-14 29227 Humboldt South of Eureka Comment
  CAS-BOT-BC208662  Distichlis spicata David D. Keck 1938-8-5 4769 Humboldt Big Lagoon Comment
  UC595125  Distichlis spicata David D. Keck 1938-8-5 4769 Humboldt Big Lagoon Comment
  UC34954  Downingia elegans Chesnut and Drew 1888-7-10 Humboldt near Jarnigan's Comment
  HSC57990  Draba howellii G. L. Clifton, Terry Griswold 1979-7-31 11738 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CAS-BOT-BC159609  Drymocallis glandulosa var. glandulosa M. S. Jussel 1931-5-2 139 Humboldt 6 miles from Garberville Comment
  HSC58166  Drymocallis lactea var. lactea G. L. Clifton, Griswold 1979-8-2 12232 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  CAS-BOT-BC70872  Dryopteris arguta Doris K. Kildale 1928-12-30 6884 Humboldt Phillipsville Comment
  HSC99640  Dryopteris arguta T. Jimerson, J. Pageau 1979-7-31 700 Humboldt Near Whiting Ridge. Close to town of Hyampom 1204 Comment
  SEINET6424490 Image available Dryopteris dilatata Hicks, Carpenter 1977-7-12 Humboldt Prairie Creek State Park Comment
  POM188328  Dryopteris expansa Marcus E. Jones 1931-8-2 29171 Humboldt Klamath Comment
  CAS-BOT-BC113642  Eleocharis acicularis Doris K. Kildale 1931-5-16 s.n. Humboldt Snow Camp Comment
  HSC58703  Eleocharis acicularis Griswold, Butler 1979-7-11 7086 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  UC666881  Eleocharis acicularis Joseph P. Tracy 1934-7-13 13393 Humboldt Dow's Prairie; dried bed of pond 60 Comment
  CAS-BOT-BC112845  Eleocharis macrostachya Malcom A. Nobs; Stanley Galen [S. Galen] Smith 1949-8-11 1346 Humboldt Marshes on eastern side of Big Lagoon. Comment
  HSC7308  Eleocharis macrostachya R. L. Jarvis 1962-4-7 11 Humboldt E of Hwy. 101, 4 mi. S of Eureka 0 Comment
  UC1103658  Eleocharis macrostachya Joseph P. Tracy 1938-6-15 15929 Humboldt 3 mi S of Fields Landing (Salmon Creek Flats) 6 Comment
  UC1103654  Eleocharis obtusa Joseph P. Tracy 1938-8-14 16106 Humboldt Willow Creek Canyon, along Trinity Highway 762 Comment
  CHSC96444  Eleocharis pachycarpa Gordon Leppig 1997-8-3 648 Humboldt Big Lagoon County Park, Big Lagoon Bog. UTM Zone 10 NAD 1927, 405321E 4557202N. 3 Comment
  HSC96491  Eleocharis pachycarpa Gordon Leppig 1998-7-19 979 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  UCD61426  Elymus elymoides A. H. Murphy 1951-6-25 75 Humboldt About 1 mile west of Snow Camp Mtn. ca. 8 miles ene of Kneeland. Comment
  HSC58670  Elymus elymoides var. elymoides Gilbert Muth 1979-8-1 12106 Humboldt Near High Spring, close to the town of Hoopa. 1798 Comment
  HSC70405  Elymus glaucus M. A. Baker 1980-6-7 1840 Humboldt Near Ammon Creek 732 Comment
  HSC9706  Elymus glaucus E. W. Styskel 1964-5-17 90 Humboldt 1.5 miles SE of Redcrest along Hwy. 101. Comment
  RSA183623  Elymus glaucus D. E. Anderson 1965-5-15 3718 Humboldt Along Hw. 96, 1.9 miles north of Willow Creek. Comment
  UCD61892  Elymus glaucus A. H. Shunk 1923-7-21 Humboldt Bridgeville. Comment
  SEINET11683186  Elymus glaucus K. S. Erdman 1970-1 4849 Humboldt Redwood National Park, Redwood Creek, about 2-3 mi above the road end, near McArthur & Elam Creeks Comment
  UC1146679  Elymus glaucus Freed W. Hoffman 1946-5-19 1729 Humboldt Mattole River North Coast Ranges Comment
  CAS-BOT-BC203480  Elymus glaucus subsp. glaucus Doris K. Kildale 1929-6-24 7065 Humboldt Redwood Creek at Berry's Comment
  HSC98582  Elymus glaucus subsp. glaucus Cara Witte 2008-7-16 917 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UCD62371  Elymus glaucus subsp. glaucus A. H. Shunk 1923-7-12 Humboldt Briceland. Comment
  UC1103475  Elymus glaucus subsp. virescens Joseph P. Tracy 1938-6-17 15959 Humboldt s point of Cape (near ocean shore); Cape Mendocino 3 Comment
  HSC9728  Elymus mollis subsp. mollis E. W. Styskel 1964-5-7 82 Humboldt 2 miles S of Samoa near Samoa Rd. Comment
  CHSC35546  Elymus multisetus James Payne Smith Jr. 1977-7-3 9256 Humboldt Six Rivers National Forest. Along Forest Service Road 13N01, 3 miles from its junction with State Route 36. 548 Comment
  UC185826  Elymus trachycaulus Joseph P. Tracy 1912-7-27 3885 Humboldt Kneeland Prairie Northern Coast Ranges of California 762 Comment
  UC1103295  Elytrigia repens Joseph P. Tracy 1925-9-13 7267 Humboldt Eel River North Coast Ranges (mouth, on river bank) 6 Comment
  UCD117423  Empetrum nigrum subsp. hermaphroditum James Payne Smith Jr. 1975-3-31 8048 Humboldt Megwill Point on Elk Head, just north of College Cove. Comment
  RSA610462  Epilobium brevistylum R. S. Woglum 1938-8-29 2027 Humboldt Northern Coast Ranges: Trinidad, southwest of Redwood National Park. Comment
  UC505123  Epilobium campestre Joseph P. Tracy 1930-6-15 8743 Humboldt near Bosworth; Larrabee Creek 457 Comment
  UC146137  Epilobium ciliatum subsp. ciliatum J. P. Tracy 1909-7-4 3004 Humboldt Immediate vicinity of Eureka 0 Comment
  UC205232  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1920-8-15 5376 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  HSC27041  Epilobium ciliatum subsp. ciliatum Brad Klipfel 1973-8-25 288 Humboldt Near Lazy L Ranch, Fickle Hill Rd. Comment
  RSA755161  Epilobium ciliatum subsp. glandulosum Robert F. Thorne, P. Everett 1965-8-9 35347 Humboldt Along Hwy 101 about 3 miles N of Eureka; 2 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
  HSC16367  Epilobium ciliatum subsp. watsonii J. P. Tracy 1926-7-25 7756 Humboldt Big Lagoon Comment
  HSC49656  Epilobium ciliatum subsp. watsonii J. P. Smith 1971-10-6 4952 Humboldt At the end of Murray Rd., McKinleyville Comment
  HSC98949  Epilobium densiflorum Cara Witte 2008-7-28 946 Humboldt Buck Flat. Near intersection of National Forest 1 and Forest Service Road 5N01. 1591 Comment
  UC505125  Epilobium densiflorum Joseph P. Tracy 1932-8-21 10361 Humboldt Three Cabins Northern Coast Ranges, Chaparral Mountain (lower w foothills of mt.) 457 Comment
  HSC67186  Epilobium minutum Thomas W. Nelson, James Nelson 1980-6-10 5422 Humboldt Along road to Red Mtn., 0.5 mi. W of junction with Swayback Ridge Rd. 1372 Comment
  HSC70924  Epilobium minutum R. York 1980-5-18 574 Humboldt Near Black Mtn 792 Comment
  HSC74202  Epilobium oregonense M. A. Baker 1980-7-22 3094 Humboldt Near Grogan Hole. 1676 Comment
  UC535752  Epilobium septentrionale Eleanor Armstrong 1934-8-15 1145 Humboldt Richardson Grove 121 Comment
  CAS-BOT-BC56970  Equisetum arvense Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  CAS-BOT-BC57160  Equisetum hyemale subsp. affine Henry M. Pollard 1946-8-11 s.n. Humboldt Perch Creek, Orleans region Comment
  RSA275366  Equisetum hyemale var. affine James Payne Smith, Advanced Plant Taxonomy Class 1971-10-9 4996 Humboldt Mad River above the Fish Hatchery. Comment
  RSA53861  Eragrostis cilianensis Henry M. Pollard 1946-8-10 s.n. Humboldt Klamath River near Wilson Creek, Orleans region Comment
  HSC9785  Eragrostis mexicana subsp. virescens J. P. Tracy 1931-9-7 9653 Humboldt Trinity River Valley, Willow Creek Comment
  RSA20844  Erechtites glomeratus C. B. Wolf 1937-6-18 8884 Humboldt Table Bluff between Humboldt Bay and Eel River 30 Comment
  CAS-BOT-BC299908  Erechtites minimus A. A. Heller 1923-7-8 13766 Humboldt State redwood camp 10 miles south of Dyerville Comment
  POM161486  Ericameria greenei Joseph P. Tracy 1919-9-22 5273 Humboldt Trinity Summit 1890 Comment
  HSC98010  Ericameria nauseosa var. speciosa Cara Witte 2007-9-14 650 Humboldt National Forest 1. 1/2 mile south of intersection with Forest Service Road 6N01B. 1666 Comment
  RSA46777  Erigeron Doris Kildale Gillespie 1937-8-26 15345 Humboldt Christmas Prairie. Comment
  HSC98529  Erigeron aliceae Cara Witte 2007-6-13 265 Humboldt Along Forest Service Rd. 5N04. Near Grouse Mountain 1538 Comment
  CAS-BOT-BC296116  Erigeron foliosus var. confinis Doris K. Kildale 1928-7-1 5665 Humboldt Klamath River at Bluff Creek Comment
  CDA14246  Erigeron foliosus var. foliosus P. Haggard 1998-6-12 s.n. Humboldt North Coast Ranges; Margin of Hwy 36, immed. W of Bridgeville along Van Duzen River. 0 Comment
  CAS-BOT-BC300674  Erigeron foliosus var. mendocinus Alice Eastwood; John Thomas Howell 1937-6-22 4731 Humboldt Near Alder Point Comment
  POM187846  Erigeron foliosus var. mendocinus Marcus E. Jones 1931-7-16 29149 Humboldt Junction, East of Arcata. Comment
  UCR51797  Erigeron foliosus var. mendocinus P. A. Munz 1948-8-15 12358 Humboldt Van Duzen Redwood State Park 245 Comment
  UC1223142  Erigeron foliosus var. mendocinus Joseph P. Tracy 1942-7-18 17284 Humboldt n end of town Garberville (in and adjacent to abandoned field) 152 Comment
  JEPS94286  Erigeron glaucus Vernon Oswald and Lowell Ahart 1997-9-4 8851 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
  SBBG52999  Erigeron glaucus J. D. Hobson -Jul-1966 Humboldt beach and cliff at S end of sand spit forming Eureka Harbor, 10 mi S of Eureka Comment
  UC1199401  Erigeron inornatus var. inornatus Joseph P. Tracy 1939-8-16 16422 Humboldt Grouse Mountain 1524 Comment
  UC169351  Erigeron inornatus var. inornatus Joseph P. Tracy 1912-7-31 3948 Humboldt near the summit Buck Mountain 1676 Comment
  RSA0010343  Erigeron klamathensis Joseph P. Tracy 1937-7-24 15515 Humboldt Trinity Summit, 2 miles SE of Devil's Hole. 1585 Comment
  HSC66281  Erigeron maniopotamicus M. A. Baker 1980-6-28 2499 Humboldt Near Mad River Buttes 1445 Comment
  SEINET4005694 Image available Erigeron philadelphicus O. M. Clark 1932-1 5312 Humboldt South Eureka. Comment
  UC468821  Erigeron robustior Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5429 Humboldt near Hubbards Comment
  UC1199400  Erigeron strigosus var. septentrionalis Joseph P. Tracy 1935-7-9 14057 Humboldt opposite Willow Creek; Trinity River Valley 152 Comment
  UCR37906  Eriogonum compositum D. K. Imper 1982-7-2 1411 Humboldt Near Connely Creek, N Fork 1493 Comment
  UC183632  Eriogonum compositum var. compositum Joseph P. Tracy 1913-6-22 4262 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Van Duzen River valley 762 Comment
  CAS-BOT-BC259156  Eriogonum latifolium Ira L. Wiggins 1930-7-11 4680 Humboldt Near Samoa Comment
  CAS-BOT-BC259162  Eriogonum latifolium Carl B. Wolf 1937-9-12 9331 Humboldt Clam Beach 7 Comment
  CHSC55905  Eriogonum latifolium L. P. Janeway 1987-7-31 2539 Humboldt Vicinity of Eurekal North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  HSC26656  Eriogonum latifolium J. P. Smith 1971-10-6 4938 Humboldt End of Murray Rd. in McKinleyville. Comment
  LA206936  Eriogonum latifolium Carl Epling; Mrs. Epling 1935-8-15 sn Humboldt Arcata Spit Comment
  HSC17292  Eriogonum latifolium D. E. Anderson 1962-7-4 2248 Humboldt Luffenholtz Beach 5 mi. S of Trinidad along old Hwy. 101, 2 mi. N of mouth of Little River Comment
  CAS-BOT-BC259534  Eriogonum luteolum var. luteolum Alice Eastwood 1921-7-21 10677 Humboldt Vanduzen [Van Duzen] River Comment
  UC1198108  Eriogonum luteolum var. luteolum Joseph P. Tracy 1930-8-3 9142 Humboldt along Van Duzen River opposite Buck Mountain; Van Duzen River 762 Comment
  CAS-BOT-BC261490  Eriogonum nudum var. nudum A. A. Heller 1924-7-20 13863 Humboldt Along the Eel River at Phillipsville Comment
  UC1198139  Eriogonum nudum var. nudum Joseph P. Tracy 1939-8-20 16430 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  SD22522  Eriogonum nudum var. nudum Susan G. Stokes 1932-7-12 Humboldt Ukiah to Garberville Comment
  CAS-BOT-BC269863  Eriogonum nudum var. pubiflorum Carl D. Duncan 1920-9-21 336 Humboldt Hoopa Comment
  CAS-BOT-BC267969  Eriogonum umbellatum var. argus Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. 1524 Comment
  UCR37846  Eriogonum umbellatum var. nelsoniorum Walter C. Overton, Marvin Butler 1979-7-26 9994 Humboldt North Coast Range, near Willow Creek, east fork, close to the town of Willow Creek 1341 Comment
  RSA0070496  Eriogonum umbellatum var. nelsoniorum Thomas W. Nelson 1973-7-10 1032 Humboldt Humboldt-Trinity Co. line. Mt Lassic (Signal Peak). 1790 Comment
  CAS-BOT-BC301010  Eriophyllum lanatum var. achilleoides L. R. Abrams 1916-7-11 6065 Humboldt Mouth of Grizzly Creek on Van Duzon [Duzen] River Comment
  UC507068  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-5-21 E 34 Humboldt 1 mi n Garberville; South Fork of Eel River Comment
  POM358028  Eriophyllum lanatum var. aphanactis Thomas W. Nelson, Jane P. Nelson 1977-7-1 3579 Humboldt Head of North Fork of Conley Creek, W side of road N from Alder Spring. 1463 Comment
  CAS-BOT-BC301183  Eriophyllum lanatum var. arachnoideum Frank W. Peirson 1926-7-12 7029 Humboldt West slope Coast Range back of Orick Comment
  UCR123949  Eriophyllum lanatum var. croceum George K. Helmkamp, E. A. Helmkamp 2001-7-8 6991 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  HSC97629  Eriophyllum lanatum var. grandiflorum Cara Witte 2007-6-4 205 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  RSA21076  Eriophyllum lanatum var. integrifolium C. B. Wolf 1937-8-13 9236 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  CAS-BOT-BC301687  Eriophyllum lanatum var. lanceolatum Harley P. Chandler 1901-6-1 1403 Humboldt North Coast Ranges. Klamath River 243 Comment
  UC668204  Eriophyllum staechadifolium Joseph P. Tracy 1938-6-17 15958 Humboldt s of point of Cape Cape Mendocino 3 Comment
  JEPS61366  Erodium botrys Lincoln Constance 1934-5-27 701 Humboldt s end Dyerville Bridge; South Fork Eel River, Bull Creek Region Comment
  HSC82395  Erysimum capitatum Thomas W. Nelson 1979-7-11 5008 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC67181  Erysimum capitatum var. capitatum Thomas W. Nelson, James Nelson 1980-6-10 5433 Humboldt Along E side of Red Mtn. 1372 Comment
  HSC6764  Erysimum capitatum var. capitatum Lincoln Constance 1934-6-22 919 Humboldt S Fork Eel River, summit of Grasshopper Peak down Canoe Creek Rd. to Redwood Hwy., and thense N to Dyerville Comment
  HSC74289  Erysimum capitatum var. capitatum M. A. Baker 1980-7-19 3013 Humboldt Near Bret Hole. 1814 Comment
  HSC85898  Erysimum capitatum var. capitatum Barry Silver 1986-4-23 528 Humboldt 9.5 mi. NW of junction with Hwy. 299, Pine Ridge Summit area 945 Comment
  CAS-BOT-BC383051  Erythranthe guttata David B. Lowry 2005-5-16 PCK Humboldt Along Kneeland road, east of Slater Road 709 Comment
  CAS-BOT-BC133258  Erythronium L. R. Abrams 1918-6-15 7099 Humboldt Brannan Mt near Willow Creek 1371 Comment
  HSC44353  Erythronium californicum Brad Klipfel 1974-5-8 319 Humboldt Horse Mountain Comment
  UC1134592  Erythronium californicum R. Stahelin 1933-5-17 Humboldt Kneeland Prairie China Flat Quadrangle Comment
  UC666961  Erythronium grandiflorum Joseph P. Tracy 1933-7-11 12708 Humboldt Grouse Mountain 1524 Comment
  HSC104331  Erythronium oregonum James Regan, Humboldt Redwood Co., LLC 2007-5-3 21 Humboldt Long Ridge, near Taylor Peak, west of Scotia / Bear River 793 Comment
  HSC15498  Erythronium oregonum subsp. leucandrum Eugene Andreuccetti 1964-5-2 45 Humboldt 30 yds. from Cedar Creek along Hwy. 299 Comment
  CAS-BOT-BC133333  Erythronium revolutum Doris K. Kildale; L. B. Kildale 1930-5-11 9536 Humboldt [Wire Grass] Wiregrass Prairie - The Bald Hills 792 Comment
  CAS-BOT-BC133334  Erythronium revolutum Doris K. Kildale 1926-3-21 1560 Humboldt Kneeland road near beginning of prairie 762 Comment
  JEPS61873  Erythronium revolutum Joseph P. Tracy 1918-5-4 Humboldt Eureka Comment
  UC146200  Erythronium revolutum Joseph P. Tracy 1908-6-9 2661 Humboldt Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC184948  Eschscholzia californica Joseph P. Tracy 1912-7-21 3765 Humboldt Alton Northern Coast Region 30 Comment
  HSC26453  Eschscholzia californica T. O. Osborne 1970-7-18 3 Humboldt Sugarloaf Rock, Cape Mendocino 76 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
  HSC58818  Eucephalus ledophyllus Gilbert Muth 1979-8-1 12103 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC49682  Euchiton sphaericus J. O. Sawyer 1977-7-1 2990 Humboldt Aikens campground. Comment
  UC1199356  Euchiton sphaericus Joseph P. Tracy 1948-9-26 18230 Humboldt 6 mi SE of Arcata (Fickle Hill) 609 Comment
  UC1199357  Euchiton sphaericus Joseph P. Tracy 1938-6-20 15974 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  HSC98779  Euphorbia crenulata Cara Witte 2008-6-27 766 Humboldt Along National Forest 1 on Kinsey Ridge. 1.5 mi. NE of intersection with 4N09. 1317 Comment
  JEPS73678  Euphorbia helioscopia Dr. Lamphere 1939-3-25 Humboldt near mouth of Mad River; near mouth of Mad River 9 Comment
  UC302983  Euphorbia spathulata Joseph P. Tracy 1926-5-2 7431 Humboldt near South Fork; Trinity River Valley 182 Comment
  HSC37664  Eurybia radulina R. Sutherland 1976-8-18 15 .18876 Humboldt Disturbed edge of country road 207 Comment
  CDA30697  Euthamia occidentalis M. K. Beyers, I. Shepardson 2009-9-13 249 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
  HSC102649  Festuca californica J. P. Smith 2009-5-31 12610 Humboldt Bald Hills Road. 963 Comment
  UC1103701  Festuca californica Joseph P. Tracy 1911-7-7 3426 Humboldt ridge n Willow Creek (between Willow and Campbell Creeks, near the summit); Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC526871  Festuca californica Joseph P. Tracy 1933-6-13 12603 Humboldt near summit on road from Hoopa w to Bair's; Hoopa Mountain 1066 Comment
  HSC98829  Festuca californica var. californica Cara Witte 2007-5-21 70 Humboldt White Oak Opening. 1257 Comment
  BLMAR13  Festuca idahoensis Brad Barr June, 1982 13 Humboldt King range, HJ ridge Comment
  CAS-BOT-BC278422  Festuca idahoensis Joseph P. Tracy 1930-6-8 8729 Humboldt Northern Coast Ranges. Kneeland Prairie 762 Comment
  HSC71744  Festuca idahoensis M. A. Baker 1980-6-26 2426 Humboldt Near Sims Creek 610 Comment
  HSC78917  Festuca idahoensis T. Jimerson, D. K. Imper 1982-5-17 1436 Humboldt Near Ashfield Ridge. 822 Comment
  UC1103726  Festuca idahoensis Joseph P. Tracy 1941-6-15 16909 Humboldt Wilder Ridge 609 Comment
  HSC71594  Festuca occidentalis M. A. Baker 1980-6-26 2404 Humboldt Near Sims Creek 610 Comment
  CAS-BOT-BC278965  Festuca rubra Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  CAS-BOT-BC278968  Festuca rubra Joseph P. Tracy 1911-7-16 3531 Humboldt At Eureka 60 Comment
  UC187106  Festuca rubra Joseph P. Tracy 1911-7-16 3531 Humboldt Eureka Northern Coast Region 0 Comment
  UCSC000038  Festuca rubra H. S. Yates 1936-6-23 5863 Humboldt 1 mile W of Bayside - Eureka 0 Comment
  CAS-BOT-BC282515  Festuca subbiflora W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek and Eel River Comment
  POM206179  Festuca subuliflora H. P. Chandler 1901-1 s.n. Humboldt Humboldt Bay. Comment
  UCD66498  Festuca subuliflora J. I. Mallory 1955-2-22 115 Humboldt Peavine Ridge one mile north of Luke Prairie. 701 Comment
  HSC40975  Fragaria X ananassa Linda M. Barker 1976-6-14 1590 Humboldt 3 mi. W of Arcata Comment
  CAS-BOT-BC453524  Fragaria chiloensis Bolemanson 1908-5-15 s.n. Humboldt Samoa Comment
  HSC45585  Fragaria chiloensis Diane L. Reed 1978-4-29 41 Humboldt Trinidad Head Comment
  HSC18634  Fragaria vesca Francis Winter 1960-4-23 Humboldt 1.0 mi. N of Dollar Ranch on Korbel-Maple Creek Rd. 229 Comment
  HSC99402  Fragaria vesca K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 51 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1198723  Fragaria vesca Joseph P. Tracy 1935-7-25 14237 Humboldt McKay Prairie; Trinity Summit 1584 Comment
  CAS-BOT-BC457923  Fragaria vesca subsp. californica Doris K. Kildale 1926-3-23 1613 Humboldt Alton Hill Comment
  HSC27127  Frangula californica J. P. Smith, J. O. Sawyer 1973-2-10 5841 Humboldt 2.7 mi. W of Hwy. 96 on Brannan Mtn. Road, N of Willow Creek 366 Comment
  CAS-BOT-BC52732  Frangula californica subsp. californica L. R. Abrams 1918-6-16 7138 Humboldt Willow Creek Comment
  CAS-BOT-BC52745  Frangula californica subsp. californica Alice Eastwood 1943-6-11 18975 Humboldt State Azalea Grove Comment
  CAS-BOT-BC59967  Frangula purshiana H. E. McMinn 1922-8-5 347 Humboldt Along Van Duzen River Comment
  CAS-BOT-BC59998  Frangula purshiana C. B. Wolf 1937-8-13 9260 Humboldt N. coast range, 11 mi. e. of Hoopa Valley on New Road towards Trinity summit. 1524 Comment
  HSC39943  Frangula purshiana Linda M. Barker 1976-7-5 1648 Humboldt 3 mi. W of Arcata. Comment
  SEINET200389  Frasera speciosa Joseph P. Tracy 1932-7-20 10731 Humboldt Trinity Summit , 1585 Comment
  HSC16192  Fraxinus latifolia J. R. Lippincott 1967-7-16 14 Humboldt 1.0mi S of Blue Lake in West End Rd. Comment
  RSA24070  Fraxinus latifolia Carl B. Wolf 1940-11-10 9784 Humboldt Along the Mattole River 3 miles below Upper Mattole P.O. at Miner s Ranch 152 Comment
  RSA46909  Fraxinus latifolia Doris K. Kildale 1926-6-27 2229 Humboldt Little Van Duyen River on bridge on Bridgeville Red Bluff road 640 Comment
  UC562731  Fraxinus latifolia Joseph P. Tracy 1928-4-22 8414 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC15537  Fritillaria affinis D. E. Anderson 1965-5-8 3635 Humboldt 4 mi. E of Berry Summit along Hwy. 299 Comment
  UC14992  Fritillaria affinis J. P. Tracy 1901-4-26 1045 Humboldt immediate vicinity of Eureka (Humboldt Hill); Humboldt Hill 0 Comment
  HSC79054  Fritillaria purdyi D. K. Imper 1984-5-16 Humboldt 0.25 mi. E of Friday Camp Rd., 0.25 mi. N of junction with 6N01 1220 Comment
  UC175294  Fritillaria recurva Joseph P. Tracy 1913-6-17 4176 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  SEINET3024818  Galium ambiguum Joseph P. Tracy 1913-6-21 4248 Humboldt Dinsmore's Ranch; in valley of Van Duzen River opposite Buck Mountain 760 Comment
  UC602525  Galium ambiguum var. siskiyouense Joseph P. Tracy 1925-5-30 7026 Humboldt Laribee Valley Northern Coast Ranges 731 Comment
  HSC89756  Galium aparine M. Roantree 1985-5-30 74 Humboldt E side of Trinidad Head along dirt road Comment
  UC594156  Galium aparine S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3427 Humboldt nw slopes Buck Mountain 822 Comment
  UC1196094  Galium parisiense Joseph P. Tracy 1946-8-25 17645 Humboldt Alton to Fortuna (on gravel bars); Eel River 15 Comment
  HSC79485  Galium porrigens var. porrigens Kenneth Clark 1980-3-1 508 Humboldt Shelter Cove, middle alluvial terrace, Dead Man's Gulch 37 Comment
  JEPS52749  Galium porrigens var. porrigens L. T. Dempster and G. L. Stebbins 1963-7-10 3856 Humboldt 6.8 mi w mouth of Bull Creek; Bull Creek (settlement) 91 Comment
  JEPS6555  Galium trifidum var. pacificum Joseph P. Tracy 1934-7-2 13287 Humboldt mouth of river Little River 6 Comment
  UC169032  Galium triflorum Joseph P. Tracy 1908-6 2862 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC98666  Galium triflorum Cara Witte 2007-7-2 398 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1589 Comment
  CAS-BOT-BC303393  Gamochaeta ustulata Joseph P. Tracy 1936-8-23 15163 Humboldt Carlotta 60 Comment
  CAS-BOT-BC303394  Gamochaeta ustulata John Thomas Howell 1936-8-29 12885 Humboldt Eel River 16 miles N of Garberville Comment
  UC562618  Gamochaeta ustulata Joseph P. Tracy 1936-5-29 14830 Humboldt 2 mi n Orick (on Bald Hills road) 152 Comment
  CAS-BOT-BC188550  Garrya elliptica J. P. Tracy 1911-10-22 3549 Humboldt Immediate vicinity of Eureka 152 Comment
  CAS-BOT-BC194526  Garrya elliptica L. R. Abrams; R. Bacigalupi 1922-6-25 8293 Humboldt Bluffs north of Big Lagoon Comment
  UCSB72516  Garrya fremontii Moseley, Maynard 1952-8-21 Humboldt Along western valley wall of Willow Creek, mostly within Hoppe Indian Reservation, upstream from Willow Village Comment
  UCSB72517  Garrya fremontii Moseley, Maynard 1952-8-21 Humboldt Along western valley wall of Willow Creek, mostly within Hoppe Indian Reservation, upstream from Willow Village Comment
  JEPS8446  Gaultheria ovatifolia Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3413 Humboldt meadow at Snow Camp, ridge between Mad River and Redwood Creek (Bald Mountain ridge) Snow Camp 1432 Comment
  HSC23125  Gaultheria shallon G. M. Nordstrom 1966-4-24 17 Humboldt Kneeland-Maple Creek Rd., near jct. with Korbel rd. Comment
  POM118415  Gaultheria shallon Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC1197592  Gaultheria shallon J. P. Tracy 1901-5-30 1114 Humboldt immediate vicinity Eureka 0 Comment
  SEINET11993510  Gaultheria shallon F. H. Utech 1986-1 86 -393 Humboldt ca 5 mi N on Kings Peak Rd, from junction with Shelter Cove Rd, near Tolkan Recreation Area 480 Comment
  HSC102923  Gayophytum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1116 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  HSC101055  Gentiana plurisetosa Sydney Carothers 1998-8-10 201 Humboldt Patterson Meadow 1555 Comment
  CHSC31298  Geranium dissectum Mark Stopher 1980-7-18 120 Humboldt In diked off upland habitat along Elk River near Hwy 101 bridge. 1 Comment
  UC1197407  Geranium dissectum Joseph P. Tracy 1936-6-9 14880 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  UC1197394  Geranium molle Joseph P. Tracy 1910-5-29 3142 Humboldt Eureka Northern Coast Region 0 Comment
  UC668044  Geranium molle Joseph P. Tracy 1933-5-19 12197 Humboldt Alton to Fortuna (along the Eel River); Eel River 15 Comment
  HSC18645  Geum macrophyllum E. W. Styskel 1963-5-19 37 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 305 Comment
  UC52536  Gilia capitata subsp. capitata Mrs. M. H. Manning Humboldt Hupa Comment
  CDA40044  Gilia capitata subsp. pacifica Gordon Leppig 2003-6-25 1990 Humboldt The Pacific Lumber Company, THP 1-02-306 HUM. East side headwaters of Brushy Creek. Comment
  HSC95436  Gilia capitata subsp. pacifica Gordon Leppig 2003-6-25 1989 Humboldt E side headwaters of Brushy Creek 800 Comment
  HSC34612  Gilia millefoliata A. Montalvo 1975-5-24 274 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC90478  Gilia millefoliata Jean Hanson 1981-5-10 131 Humboldt Indian Island, Humboldt Bay, Eureka, W end of island Comment
  HSC89597  Gilia tricolor subsp. tricolor M. Roantree 1985-5-24 59 Humboldt S of Trinidad Head summit near cross Comment
  CAS-BOT-BC266491  Githopsis diffusa L. R. Abrams 1918-6-16 7176 Humboldt Willow Creek Comment
  HSC14201  Glechoma hederacea D. W. Snell 1964-4-25 55 Humboldt Mad River bottom, 3 mi. N of Blue Lake Comment
  HSC90248  Glehnia littoralis subsp. leiocarpa Jean Hanson 1980-5-24 63 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka. W end of island Comment
  HSC90679  Glyceria declinata Gail Newton 1982-6-10 3591 Humboldt Elk River Wildlife Area, Eureka Comment
  CAS-BOT-BC280551  Glyceria elata Henry M. Pollard 1948-8-9 s.n. Humboldt Camp Creek near Orleans Comment
  HSC35857  Glyceria elata Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2059 Humboldt Beside Rd. 2S08 to Pine Mtn. Comment
  HSC10089  Glyceria striata J. P. Tracy 1925-6-13 7086 Humboldt Eureka 0 Comment
  SEINET10938128  Gnaphalium Mary Susan Taylor 1990-8-22 Taylor 6077 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  HSC39773  Gnaphalium palustre Peter Sorensen 1976-8-16 Humboldt Humboldt Bay: Woodley Island Comment
  HSC58110  Gnaphalium palustre G. L. Clifton, Griswold 1979-8-1 12058 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  POM358894  Gnaphalium palustre H. E. Parks, S. T. Parks 1937-08 24080 Humboldt Spruce Cove, Trinidad. Comment
  UC582518  Gnaphalium palustre Joseph P. Tracy 1933-8-30 13043 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  SEINET11836330  Gnaphalium palustre H. E. Parks, Parks, S. T. 1937-1 24080 Humboldt Spruce Cove, Trinidad Comment
  UC1199342  Gnaphalium palustre Joseph P. Tracy 1927-9-4 8364 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  POM224403  Gnaphalium sphaericum J. T. Howell 1936-8-29 12888 Humboldt Eel River 16 miles N of Garberville. Comment
  HSC34239  Goodyera oblongifolia J. D. Ackerman 1975-8-24 648 Humboldt Intersection of Hwy. 255 to Samoa Bridge and Samoa Blvd. Comment
  JEPS25801  Grindelia hirsutula L. R. Heckard 1960-8-31 1220 Humboldt s end Dry Lagoon Beach State Park Comment
  POM359112  Grindelia stricta var. platyphylla M. B. Dunkle 1936-8-18 4813 Humboldt South of Eureka. 91 Comment
  POM264515  Grindelia stricta var. stricta H. E. Parks 1941-08 24190 Humboldt Big Lagoon. Comment
  RSA134602  Grindelia stricta var. stricta Percy C. Everett, E. K. Balls 1959-10-25 23967 Humboldt 6 miles NE of Eureka, U.S. Hwy101. Comment
  RSA21023  Grindelia stricta var. stricta C. B. Wolf 1937-9-12 9333 Humboldt Humboldt Bay, 1 mile south of Arcata on road to Eureka. 3 Comment
  SJSU8446  Grindelia stricta var. stricta H. T. Harvey 1977-7-5 600 Humboldt Elk R Spit, Humboldt Bay Comment
  UC201390  Guillenia lasiophylla Joseph P. Tracy 1918-5-1 4907 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC206137  Hackelia bella Joseph P. Tracy 1913-6-17 4174 Humboldt near the summit Buck Mountain; Northern Coast Ranges 1676 Comment
  UC79899  Hackelia californica Joseph P. Tracy 1937-7-25 15548 Humboldt on Ridge 2 mi e of Groves Prairie; Trinity Summit 1524 Comment
  JEPS55562  Hackelia micrantha Hilda Grinnell 1932-7-12 16 Humboldt slope below McKay Camp; South Fork Mountain Comment
  UC525574  Hackelia micrantha Joseph P. Tracy 1932-7-11 10421 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC57626  Hazardia whitneyi G. L. Clifton, Griswold 1979-7-25 10765 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC582670  Helenium bigelovii Joseph P. Tracy 1937-8-12 15657 Humboldt Snow Camp 1402 Comment
  UC1223096  Helenium bigelovii Joseph P. Tracy 1950-7-25 19071 Humboldt McKay Camp Comment
  UC1223097  Helenium bigelovii Joseph P. Tracy 1948-8-15 18153 Humboldt ridge near Elk Camp (trail to Grove's Prairie); Trinity Summit 1493 Comment
  HSC39775  Helminthotheca echioides Peter Sorensen 1976-8-19 Humboldt Woodley Island Comment
  RSA11161  Hemizonia congesta C. B. Wolf 1927-8-29 1218 Humboldt Devils' Gate, S of Cape Mendocino Comment
  UC175088  Hemizonia congesta subsp. clevelandii T. S. Brandegee 1898-7-1 Humboldt Mad River Comment
  HSC35622  Hemizonia congesta subsp. clevelandii Thomas W. Nelson, B. Reinhardt 1975-7-30 2123 Humboldt Beside private road to Pilot Rock Comment
  CAS-BOT-BC309986  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1925-7-12 7200 Humboldt Northern Coast Ranges. Trinity River Valley, near the South Fork 304 Comment
  CAS-BOT-BC310002  Hemizonia congesta subsp. tracyi Alice Eastwood; John Thomas Howell 1937-6-23 4805 Humboldt Little Van Duzen River Comment
  HSC34997  Hemizonia congesta subsp. tracyi Thomas W. Nelson, James Nelson 1975-5-24 1851 Humboldt McKeown Ranch, N of Dinsmore. Comment
  LA203693  Hemizonia congesta subsp. tracyi S. K. Harris; 1936-6-20 sn Humboldt above Van Duzen River about 1 mi. W of Bridgeville Comment
  HSC56157  Heracleum maximum G. L. Clifton, Terry Griswold 1979-8-1 12022 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  SEINET10972515  Heterocodon rariflorum Harold E. Parks, Joseph P. Tracy Parks 11084 Humboldt GROUSE MTN Comment
  HSC28930  Heteromeles arbutifolia Diane Johnson 1972-12-4 Humboldt Butler Valley near Big Bend Rd. Comment
  SEINET5782099 Image available Heterotheca oregona S. K. Harris 1938-8-24 Humboldt Eel River, near Fernbridge Comment
  HSC25982  Heterotheca oregona var. rudis Thomas W. Nelson 1970-9-3 233 Humboldt Mad River. Comment
  UC620692  Heterotheca oregona var. rudis S. K. Harris 1938-8-24 881 Humboldt near Fernbridge (sand of Eel River); Eel River Comment
  SEINET12216924  Heuchera micrantha F. H. Utech 1986-1 86 -398 Humboldt ca 3 mi NW of Petrolla on Mattole Road (Humboldt County F3C) enroute to Capetown 80 Comment
  CAS-BOT-BC424196  Heuchera micrantha var. hartwegii Joseph P. Tracy 1947-4-27 17673 Humboldt Gravelly bank at roadside near top of Wolverton Gulch; 1/2 mile W of town. 152 Comment
  RSA298359  Heuchera micrantha var. hartwegii J. P. Smith 1973-5-26 6825 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC56213  Heuchera rubescens G. L. Clifton, Griswold 1979-8-2 12222 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC57870  Hieracium albiflorum G. L. Clifton 1979-7-31 11399 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC99543  Hieracium albiflorum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 208 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  BLMAR738  Hieracium albiflorum Jennifer Wheeler 2015-5-12 738 Humboldt King range, Along Telegraph Ridge btwn Oat and Spanish 670 Comment
  HSC98711  Hieracium albiflorum Cara Witte 2007-7-25 577 Humboldt Forest Service Road 5N10. 2.5 miles east of intersection with National Forest 1. 1327 Comment
  UC1223083  Hieracium bolanderi Joseph P. Tracy 1947-7-9 17849 Humboldt Horse Mountain 1432 Comment
  UC582420  Hieracium scouleri Joseph P. Tracy 1932-7-17 10659 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  UC187262  Hierochloe occidentalis Joseph P. Tracy 1911-5-7 3180 Humboldt Kneeland Prairie North Coast Ranges 762 Comment
  UCD150387  Hippuris vulgaris William Anderson 1965-6-26 s.n. Humboldt Mad River Slough. Comment
  HSC95385  Hippuris vulgaris Andrea Pickart 2002-7-19 185 Humboldt Arcata Marsh in Log Pond 10 Comment
  HSC97396  Holcus lanatus J. Wendell Howe 1934-6-27 1278 Humboldt Arcata. Comment
  SEINET4585084  Holcus lanatus H. Parks, S. Parks 1943-1 24260 Humboldt North Coast Ranges, Spruce Cove, Trinidad. 61 Comment
  UC1103732  Holcus lanatus Joseph P. Tracy 1934-7-2 13295 Humboldt Trinidad 3 Comment
  UCD84835  Holcus lanatus Linda M. Barker 1976-6-22 1614 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC149900  Holodiscus discolor Elmer I. Applegate 1923-9-12 3989 Humboldt Stone Lagoon Comment
  HSC58138  Holodiscus discolor Gilbert Muth 1979-8-1 12156 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC97986  Holodiscus discolor Cara Witte 2007-7-8 429 Humboldt Board Camp Mountain. Pack trail 4E26. 1463 Comment
  SD42284  Holodiscus discolor Carl B. Wolf 1937-9-9 9310 Humboldt North coast Range, Wildcat Ridge, 6 3/10 mi. So. of Ferndale 305 Comment
  SD51265  Holodiscus discolor Darley F. Howe 1961-8-1 Humboldt 3.3 miles north of Trinidad on #101 Comment
  RSA60501  Holodiscus discolor John H. Thomas 1949-6-14 925 Humboldt Klamath River Valley between Weitchpec and Hoopa. Comment
  CAS-BOT-BC281263  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1933-6-6 12508 Humboldt Northern Coast Region. Trinidad 9 Comment
  SEINET200844 Image available Hordeum jubatum Joseph P. Tracy 1927-7-16 8249 Humboldt Mouth of Elk River. 3 Comment
  RSA624782  Hordeum murinum subsp. glaucum Gordon Leppig, Sylvia Leppig 1999-4-28 1127 Humboldt Arcata Bottoms; Mad River Rd. 1K North of lanphere Rd 2 Comment
  UC526706  Hordeum murinum subsp. leporinum Joseph P. Tracy 1925-5-17 6978 Humboldt Willow Creek Northern Coast Ranges, , Willow Creek (Trinity River Valley) 152 Comment
  UC183617  Horkelia californica Joseph P. Tracy 1912-7-22 3791 Humboldt Northern Coast Ranges, Table Bluff 91 Comment
  UC585617  Horkelia californica Joseph P. Tracy 1937-8-22 15672 Humboldt s Field's Landing (Foot of low hills) 6 Comment
  UC14220  Horkelia californica subsp. dissita Chestnut and Drew 1888-5-1 Humboldt Grouse Creek Comment
  CAS-BOT-BC537894  Horkelia tridentata var. flavescens Lincoln Constance; Alan A. Beetle; Joseph P. Tracy 1940-5-17 2613 Humboldt Larabee Valley, near Eureka 762 Comment
  SBBG3399  Hosackia crassifolia var. crassifolia H. and M. Dearing 1939-5-24 3418 Humboldt pass, Dyerville-Mattole Rd Comment
  HSC74204  Hydrophyllum occidentale M. A. Baker 1980-7-19 3007 Humboldt Near Bret Hole. 1814 Comment
  HSC13556  Hydrophyllum occidentale J. Allen DeCou 1899-6-19 234 Humboldt Hoopa Mtns. Comment
  JEPS1640  Hydrophyllum tenuipes Milo S. Baker July, 1923 Humboldt Carlotta, probably about [Wilder's] but possibly near Dyerville Carlotta; North Coast trip, Carlotta Comment
  UC213008  Hydrophyllum tenuipes Joseph P. Tracy 1920-5-18 5318 Humboldt Bull Creek Northern Coast Ranges (along Eel River from South Fork to Scotia) 60 Comment
  UC427873  Hydrophyllum tenuipes Parks and Tracy 1930-5-25 863 Humboldt in redwoods along Middle Van Duzen River Comment
  HSC56966  Hypericum anagalloides Walter Overton, Butler 1979-7-23 9489 Humboldt Near Titlow Hill, close to the town of Willow Creek 1280 Comment
  SEINET11855591  Hypochaeris glabra J. P. Tracy 1948-5-31 18020 Humboldt William Perry place, Dobbyn Creek 152 Comment
  UC166089  Hypochaeris glabra Joseph P. Tracy 1911-5-27 3193 Humboldt Comment
  CAS-BOT-BC123474  Iliamna latibracteata Doris K. Kildale 1926-7-5 2312 Humboldt Prairie Creek, near Davidson's. Comment
  CAS-BOT-BC206840  Iliamna latibracteata Joseph P. Tracy 1938-8-14 16104 Humboldt Willow Creek Canyon, along Trinity Highway 762 Comment
  UC150134  Ipomopsis aggregata P. E. Goddard 1906-6 683 Humboldt Sassick Park Comment
  POM65044  Ipomopsis aggregata subsp. formosissima P. E. Goddard 1906-06 683 Humboldt Lasseck Pk. Comment
  SEINET4170668  Iris W. W. Eggleston 1913-6-8 6 Humboldt Calaveras Ranger Station. 1000 Comment
  SD90155  Iris douglasiana Benjamin C. Stone 1952-6-20 116 Humboldt At Sone Lagoon, 2 miles south of Orick on Highway 101. 14 Comment
  UC162596  Iris douglasiana Joseph P. Tracy 1911-6-4 3215 Humboldt 5 mi from coast Little River (along Little River); Northern Coast Region 121 Comment
  UC667113  Iris douglasiana Joseph P. Tracy 1933-5-20 12257 Humboldt Mattole Valley; Northern Coast Ranges 30 Comment
  JEPS17230  Iris purdyi Joseph P. Tracy 1938-3-27 15700 Humboldt Miranda South Fork Eel River (slopes along South Fork Eel River) 121 Comment
  JEPS88845  Iris purdyi Carol A. Wilson 1992-4-26 92 -ph7 Humboldt se of Fortuna (at Bridgeville, where Hwy 36 crosses the bridge); Bridgeville 259 Comment
  RSA135820  Iris purdyi E. K. Balls 1957-5-25 22605 Humboldt 12.1 miles southwest from Dinsmores, State Highway 36 335 Comment
  RSA135821  Iris purdyi E. K. Balls 1957-5-25 22601 Humboldt 0.2 mile west of Trinity-Humboldt County line, along State Highway 36 732 Comment
  UC1174772  Iris purdyi L. W. Lenz and E. K. Balls 1952-5-11 17191 Humboldt 5.2 mi n Harris (on road to Zenia, 10.1 mi sw from Trinity-Humboldt Co. line) Comment
  CAS-BOT-BC123369  Iris tenax subsp. klamathensis Lee W. Lenz 1953-5-13 18296 Humboldt along Klamath River, Orleans 121 Comment
  HSC97561  Iris tenuissima subsp. tenuissima Cara Witte 2007-6-1 162 Humboldt Horse Mountain Botanical Area. Along Forest Service 6N38. 1311 Comment
  HSC7447  Isolepis cernua D. E. Anderson 1961-9-13 1817 Humboldt 1 mi. S of Trinidad Comment
  SEINET4170786 Image available Isolepis cernua Unknown 1920-6-6 5336 Humboldt Spring along Freshwater Creek 30 Comment
  CAS-BOT-BC340156  Jaumea carnosa Joseph P. Tracy 1938-7-15 16072 Humboldt Mouth of Eel River 3 Comment
  HSC37499  Jaumea carnosa J. D. Ackerman 1975-8-2 617 Humboldt Hwy. 101 between Arcata and Eureka. Humboldt Bay across from Murray Field Comment
  SEINET5782208 Image available Jaumea carnosa S. K. Harris, C. C. Harris 1939-8-26 Humboldt S shore of Humboldt Bay Comment
  UC665529  Jaumea carnosa H. E. Parks 1941-8-1 24187 Humboldt Big Lagoon Comment
  UC275455  Jaumea carnosa Joseph P. Tracy 1927-8-2 7222 Humboldt Big Lagoon Northern Coast Range 6 Comment
  UC1152088  Juncus articulatus Joseph P. Tracy 1927-8-7 8310 Humboldt Willow Creek Trinity River Valley 152 Comment
  CHSC96448  Juncus bolanderi Gordon Leppig 1998-8-23 1070 Humboldt Big Lagoon County Park, Big Lagoon Bog. UTM Zone 10 NAD 1927, 405321E 4557202N. 3 Comment
  HSC67959  Juncus bolanderi Steve Selva, J. P. Smith 1970-6-14 3524 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC184214  Juncus bolanderi Joseph P. Tracy 1900-9-3 940 Humboldt Eureka Northern Coast Region 0 Comment
  HSC96355  Juncus bolanderi Gordon Leppig 1998-8-23 1070 Humboldt Big Lagoon Bog in standing water 1 Comment
  JEPS66935  Juncus bufonius W. L. Jepson 1921-8-7 9327 Humboldt Stone Lagoon Comment
  UC963870  Juncus bufonius H. E. Parks and S. T. Parks 1943-7-1 24254 Humboldt Spruce Cove North Coast Ranges, Trinidad 60 Comment
  SEINET3877733  Juncus bufonius J. E. Lankila 1962-4-14 6 Humboldt West bank of Eel River across from Shively about 1/4 mile north of Bear Creek.; 0 Comment
  UC249747  Juncus covillei var. obtusatus Joseph P. Tracy 1923-6-19 6294 Humboldt Upper Mattole Valley Northern Coast Ranges 152 Comment
  SDSU11740  Juncus effusus var. brunneus D. F. Howe 1961-8-2 3119 Humboldt 8.5 miles east of Orick on Bald Mt. road. 610 Comment
  HSC44316  Juncus ensifolius Thomas W. Nelson, Jane Nelson 1977-9-3 3733 Humboldt Logging road to Pine Mtn., E of Pine Mtn. 1463 Comment
  UC1152105  Juncus exiguus Joseph P. Tracy 1930-7-17 8982 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC1103043  Juncus falcatus subsp. sitchensis Joseph P. Tracy 1925-10-18 7290 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC184194  Juncus hemiendytus var. hemiendytus Joseph P. Tracy 1913-6-17 4168 Humboldt near Buck Mountain summit; Northern Coast Ranges 1524 Comment
  HSC62860  Juncus hesperius J. M. DiTomaso 1979-5-16 1015 Humboldt Corner of LK Wood and 14th St., Arcata Comment
  UCD150386  Juncus hesperius William Anderson and H. Mc. 1964-8-6 s.n. Humboldt Little River. Comment
  BLMAR429  Juncus patens Clara Sander 2003-8-5 429 Humboldt Humboldt County, Growing along Hwy101 between bayside cutoff and Samoa exit 8 Comment
  UC249816  Juncus phaeocephalus Joseph P. Tracy 1924-7-13 6733 Humboldt Big Lagoon Northern Coast Region 6 Comment
  RSA44475  Juncus tenuis Henry M. Pollard 1948-7-21 s.n. Humboldt Near Orleans. Comment
  UC1152084  Juncus tenuis Joseph P. Tracy 1928-6-24 8464 Humboldt Valley of South Yager Creek 762 Comment
  OBI14464  Kalmia polifolia Joseph P. Tracy 1942-6-23 17262 Humboldt Local at "Water Dog lakes" Comment
  CAS-BOT-BC235883  Keckiella corymbosa Joseph P. Tracy 1937-7-11 15422 Humboldt Vicinity of Garberville 121 Comment
  NY790273  Keckiella corymbosa W. C. McCalla 1935-7-29 4253 Humboldt Open valley of Eel River Comment
  CAS-BOT-BC237834  Keckiella lemmonii Joseph P. Tracy 1930-7-25 8883 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC76253  Keckiella lemmonii Denis Kearns 1981-7-21 294 Humboldt Near Whiteys Peak 1585 Comment
  JEPS10903  Keckiella lemmonii Lincoln Constance 1934-6-27 937 Humboldt Dyerville South Fork Eel River, Bull Creek Region (near Eel River junction with South Fork, on s side of Eel River, 0.5 mi nw of South Fork P.O. and railroad station, end of railroad bridge) Comment
  HSC70569  Kelloggia galioides M. A. Baker 1980-7-23 3164 Humboldt Near Orleans Mtn. 1859 Comment
  UC50452  Koeleria macrantha Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6189 Humboldt Bear River Ridge Comment
  UC922033  Koeleria macrantha Joseph P. Tracy 1936-8-2 15072 Humboldt French Camp Ridge 1066 Comment
  UC249879  Lactuca serriola Joseph P. Tracy 1923-9-23 6561 Humboldt Alton Northern Coast Region 30 Comment
  UC127613  Lagophylla ramosissima Harley P. Chandler 1901-6-1 1467 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  UCR122362  Lapsana communis George K. Helmkamp, E. A. Helmkamp 2001-7-8 6990 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  RSA167198  Lasthenia californica Joseph P. Tracy 1942-5-16 17357 Humboldt Near Garberville, on road to Harris, ! mile NE of town. 305 Comment
  JEPS55292  Lathyrus lanszwertii var. tracyi Jos. P. Tracy 1918-5-26 4943 Humboldt Janes Ranch Grouse Mt.; Janes Ranch, Grouse Mt., Humboldt Co. 914 Comment
Read comments
Jun 2 2013
  UC931200  Lathyrus lanszwertii var. tracyi C. L. Hitchcock 1949-6-8 19086 Humboldt 3 mi se Willow Creek (along Highway 299) Comment
  POM277522  Lathyrus littoralis Lyman Benson 1928-7-10 s.n. Humboldt Clam Beach, Trinidad. 12 Comment
  HSC14740  Lathyrus littoralis J. P. Tracy 1906-5-13 2451 Humboldt Humboldt Bay, Ocean Beach Comment
  RSA406671  Lathyrus littoralis Charlotte M. Hoak 1931-7-14 s.n. Humboldt Sand dunes above Eureka City. Comment
  HSC24404  Lathyrus nevadensis var. nevadensis J. O. Sawyer 1970-6-24 2283 Humboldt Salmon Mt., W of Mill Creek Lake 1677 Comment
  HSC100519  Lathyrus polyphyllus Carl C. Marshall Mar 1886 147 Humboldt Near Mad River. Comment
  HSC76514  Lathyrus sulphureus Denis Kearns 1981-7-23 416 Humboldt Near Whiteys Peak. 1524 Comment
  UC33512  Lathyrus torreyi Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  RSA20842  Lathyrus vestitus subsp. bolanderi Carl B. Wolf 1937-6-18 8882 Humboldt Table Bluff - between Humboldt Bay and Eel River. 30 Comment
  CAS-BOT-BC325998  Layia carnosa Alice Eastwood 1907-5-15 s.n. Humboldt Samoa Comment
  HSC59481  Layia carnosa M. A. Ericksen 1979-4-29 244 Humboldt 0.4 mi. N of Coast Guard Station, Samoa Peninsula. Comment
  HSC95222  Layia carnosa Heather Barnes 2002-3-29 22 Humboldt Manila dunes, 0.2 km NW of Lupine St. and water tank. 3 Comment
  UC32706  Ledum glandulosum W. C. Blasdale 1896-6-2 Humboldt West Eureka Comment
  CHSC31922  Lepidium didymum M. S. Taylor 1980-10-9 3365 Humboldt Bed of Jacoby Creek, ca. 1/4 mi w of its jct with Arcata Rd, ca. 5 mi s of Arcata in Bayside. 15 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
  CAS-BOT-BC89855  Lepidium nitidum Doris K. Kildale 1928-5-27 5948 Humboldt Kneeland Prairie. 853 Comment
  UC161584  Lepidium nitidum Joseph P. Tracy 1908-6-8 2642 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC22865  Leptosiphon androsaceus D. E. Anderson 1965-5-8 3636 Humboldt 4 mi. E of Berry Summit along Hwy. 299 Comment
  SBBG64597  Leptosiphon androsaceus V. Duran 1933-5-10 3403 Humboldt near Blocksburg Comment
  POM203227  Leptosiphon androsaceus M. S. Jussel 1931-5-2 s.n. Humboldt near Garberville Comment
  UC1225825  Leptosiphon latisectus Joseph P. Tracy 1948-6-13 18048 Humboldt 2 mi n Harris 609 Comment
  HSC35595  Leptosiphon nuttallii Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2006 Humboldt French Camp, Bald Hills. Comment
  CDA8182  Lessingia filaginifolia var. californica T. C. Fuller 1961-9-28 7048 Humboldt East of Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  CDA39220  Lessingia nemaclada D. Juliano 2013-8-1 PDR# 120 P06003678 Humboldt Vicinity of Carlotta, along Yager Creek, near Hwy. 36 & Central Ave. Comment
  CAS-BOT-BC334613  Leucanthemum vulgare Doris K. Kildale 1927-6-27 3603 Humboldt Scotia 30 Comment
  JEPS37563  Leucanthemum vulgare Lincoln Constance 1934-6-6 827 Humboldt Fire trail Dyerville tottorse Prairie; Bull Creek Region Comment
  RSA129556  Leymus mollis subsp. mollis H. S. Yates 1936-6-18 5727 Humboldt Near mouth of Little River 5 Comment
  RSA10139  Leymus vancouverensis Joseph P. Tracy 1930-7-21 8894 Humboldt Cape Mendocino, south of point of the Cape 3 Comment
  JEPS17514  Ligusticum apiifolium Joseph P. Tracy 1924-8-17 6820 Humboldt Trinidad Northern Coast Ranges, Trinidad 60 Comment
  JEPS14227  Ligusticum apiifolium Joseph P. Tracy 1937-8-15 15666 Humboldt 4 mi. e. Orick (Gans Prairie); Gans Prairie 548 Comment
  HSC76407  Ligusticum californicum Teresa Prendusi 1981-7-24 456 Humboldt Near Whiteys Peak 1585 Comment
  SEINET10779391  Ligusticum californicum Joseph P. Tracy 1937-8-12 Tracy 15633 Humboldt Snow Camp 1402 Comment
  HSC56325  Ligusticum grayi Overton, Butler 1979-8-2 12668 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1197169  Ligusticum grayi Joseph P. Tracy 1932-7-12 10444 Humboldt Trinity Summit, Corral Prairie 1584 Comment
  RSA135355  Lilium Volney Rattan 1879-1 s.n. Humboldt Klamath Comment
  CAS-BOT-BC508406  Lilium columbianum A. M. Vollmer; L. Beane 1953-7-1 121 Humboldt Unspecified Comment
  HSC45837  Lilium columbianum Clifton Raymond Chesbrough 1971-7-22 75 Humboldt 1.0 mi. S of Eureka golf course Comment
  HSC89438  Lilium columbianum P. A. Daly 1984-6-16 28 Humboldt Open bluffs of Trinidad Head trail 61 Comment
  RSA34281  Lilium humboldtii subsp. humboldtii J. Wendell Howe 1934-07 s.n. Humboldt Bald Mountain Comment
  JEPS109810  Lilium kelloggii Dean W. Taylor 2004-6-23 19116 Humboldt Fickle Hill Road 1.3 miles north of junction Butler Valley Road 542 Comment
  UC1198246  Lilium kelloggii Joseph P. Tracy 1949-7-4 18324 Humboldt near Butler Valley junction with Kneeland road (Kneeland Prairie); Kneeland Prairie 670 Comment
  UC1198247  Lilium occidentale Joseph P. Tracy 1918-7-21 5078 Humboldt around Humboldt Bay Humboldt Hill; Northern Coast Ranges, Humboldt Bay, Humboldt Hill 182 Comment
  UC175925  Lilium occidentale Joseph P. Tracy 1912-6-16 3705 Humboldt near Indianola (on Table Bluff); Northern Coast Region, Humboldt Bay Region 0 Comment
  CAS-BOT-BC130730  Lilium pardalinum Volney Rattan 1878-6-16 s.n. Humboldt Arcata Comment
  JEPS61999  Lilium pardalinum Mrs. M. H. Manning 1901-1 15 Humboldt near Hupa Comment
  JEPS62008  Lilium pardalinum Hilda Grinnell 1932-7-19 31 Humboldt near McKay Camp 1676 Comment
  UCD139748  Lilium pardalinum H. P. Olmo 1931-6-8 s.n. Humboldt 5 miles north of Trinidad on Redwood Highway. Comment
  UC1198232  Lilium rubescens J. P. Tracy 1908-7-31 2936 Humboldt near Bridgeville 152 Comment
  CAS-BOT-BC132965  Lilium rubescens Volney Rattan 1867-6-1 s.n. Humboldt Coast Range Comment
  CAS-BOT-BC132968  Lilium rubescens Tom Craig 1941-7-2 s.n. Humboldt Near Yager Comment
  UC1198227  Lilium washingtonianum subsp. purpurascens Joseph P. Tracy 1946-6-23 17593 Humboldt Kneeland Prairie; near Dan McBride place 762 Comment
  UC594241  Limnanthes douglasii S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3407 Humboldt Burr Valley Buck Mountain 1036 Comment
  JEPS19587  Limnanthes douglasii Joseph P. Tracy 1921-4-24 5476 Humboldt Philipsville Northern Coast Ranges (facing South Fork of Eel River) 121 Comment
  UC702549  Linanthus androsaceus C. C. and S. K. Harris 1942-6-17 1272 Humboldt 1 mi n and 3 mi e Chalk 665 Comment
  UC1198569  Linanthus bicolor Joseph P. Tracy 1911-6-25 3255 Humboldt Eureka Northern Coast Ranges 0 Comment
  HSC3907  Linnaea borealis subsp. longiflora William J. Ferlatte, B. D. Rogers 1966-6-8 2088 Humboldt 2 mi. W of Forest Glen, Granite Canyon. Comment
  HSC97453  Linum bienne Cara Witte 2007-6-7 228 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  HSC97615  Linum bienne Cara Witte 2007-6-4 192 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC302158  Listera convallarioides Joseph P. Tracy 1926-6-27 7690 Humboldt Horse Mountain Northern Coast Ranges 1219 Comment
  CAS-BOT-BC36101  Lithocarpus densiflorus var. densiflorus L. B. Kildale 1930-8-10 10536 Humboldt Snow Camp, head of Redwood Creek 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
  HSC20225  Lithophragma affine D. E. Anderson 1963-5-19 2468 Humboldt Kneeland Area Comment
  UC1199426  Logfia gallica Joseph P. Tracy 1934-7-1 13278 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  UC1199427  Logfia gallica Joseph P. Tracy 1938-6-9 15884 Humboldt Dobbyn Creek 152 Comment
  UC1103155  Lolium multiflorum Joseph P. Tracy 1927-7-16 8252 Humboldt mouth of Elk River; North Coast Ranges, mouth of Elk River 6 Comment
  UC50707  Lolium multiflorum Joseph Burtt Davy and Walter C. Blasdale 1899-6-17 5606 B Humboldt Arcata Comment
  UCD66191  Lolium multiflorum Malcolm A. Nobs; S. Galen Smith 1949-8-3 1177 Humboldt Around Fields Landing. Comment
  UC1222808  Lomatium dasycarpum Joseph P. Tracy 1950-7-6 19000 Humboldt Albee Road, 2 mi S of Burr Valley Comment
  JEPS14246  Lomatium dissectum var. dissectum Joseph P. Tracy 1930-6-29 8808 Humboldt lower foothhills of Buck Mt. (on its n.w. slope); Northern Coast Ranges, Buck Mt. 762 Comment
  POM32369  Lomatium dissectum var. dissectum Lincoln Constance, Alan Beetle, Joseph Tracy 1940-5-17 2617 Humboldt NW slope, Lower slopes of Buck Mtn, near Eureka. 793 Comment
  SBBG5200  Lomatium dissectum var. multifidum H. and M. Dearing 1933-5-16 1222 Humboldt Eel River, N of Garberville Comment
  RSA0000726  Lomatium donnellii W. L. Jepson 1934-5-8 16716 Humboldt Redway, South Fork Eel River. Comment
  UC32502  Lomatium macrocarpum W. C. Blasdale 1896-6-6 Humboldt Kneeland's Pr. Comment
  HSC32153  Lomatium macrocarpum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5601 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  UC1197155  Lomatium macrocarpum Joseph P. Tracy 1937-7-24 15522 Humboldt head of Devil's Hole (Trinity Summit); , Devil's Hole 1676 Comment
  JEPS14247  Lomatium tracyi Joseph P. Tracy 1930-7-10 8869 Humboldt Northern Coast Ranges, Brannan Mt. 1219 Comment
  UC314629  Lomatium tracyi Joseph P. Tracy 1926-6-20 7610 Humboldt Horse Mt. Northern Coast Ranges, Horse Mt. 1524 Comment
  UC162919  Lomatium utriculatum Joseph P. Tracy 1911-7-7 3374 Humboldt 3 mi. n.w. junction of Willow Creek w/ Trinity R. (at meadows on mt. side, and near Beebe's Ranch); Northern Coast Ranges 914 Comment
  HSC37195  Lomatium utriculatum Barbara Kelly 1976-5-13 251 Humboldt Below road at Kneeland Airport Comment
  HSC58290  Lonicera conjugialis Walter Overton, Marvin Butler 1979-8-2 12554 Humboldt Near Bret Hole, close to the town of Hoopa. 1554 Comment
  HSC3942  Lonicera hispidula var. vacillans W. D. Stevens 1967-7-16 44 Humboldt Along dirt rd. from Hwy. 101 to top of N bank of Mad River. Comment
  HSC72627  Lonicera hispidula var. vacillans J. P. Smith, J. O. Sawyer 1977-7-1 Humboldt Six Rivers National Forest, Bluff Creek Campground. 76 Comment
  POM284225  Lonicera hispidula var. vacillans Lyman Benson 1928-7-12 480 Humboldt Weott Ranger Station. Seaward N Coast mtn range. S Fork Eel River. 61 Comment
  CHSC65259  Lonicera involucrata var. ledebourii H. E. Parks 1935-5-1 5542 Humboldt Comment
  JEPS13667  Lonicera involucrata var. ledebourii Mr. and Mrs. Geo. Parrish 1930-5-21 Humboldt Trinidad 30 Comment
  HSC98252  Lotus aboriginus J. P. Tracy 1906-5-20 2462 Humboldt Eureka 0 Comment
  HSC98254  Lotus corniculatus Norman H. Moe 1962-5-19 Humboldt Lanphere's Place Comment
  UC1223405  Lotus denticulatus Joseph P. Tracy 1934-6-14 13219 Humboldt Horse Mountain 1432 Comment
  RSA46827  Lotus formosissimus Doris K. Kildale 1926-5-26 1642 Humboldt Old Fortuna Road. Comment
  UC1073328  Lotus formosissimus George B. Rossbach 1955-6-10 332 Humboldt Madison Grant Elk Refuge Prairie Creek Redwoods State Park Comment
  SEINET12148049  Lotus formosissimus J. P. Tracy 1950-1 18746 Humboldt Capetown, on Bear River, top of Cape Ridge - `miE of cape Mendocino 152 Comment
  UC1197295  Lotus micranthus J. P. Tracy 1901-6-23 1179 Humboldt immediate vicinity Eureka 0 Comment
  UC168986  Lotus purshianus var. purshianus Joseph P. Tracy 1912-7-4 3731 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC201389  Lotus purshianus var. purshianus Joseph P. Tracy 1918-7-5 5015 Humboldt White Thorne Valley Northern Coast Ranges 304 Comment
  UC204647  Lotus scoparius Joseph P. Tracy 1918-7-6 5048 Humboldt near Humboldt-Mendocino County line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  HSC38527  Lotus unifoliolatus var. unifoliolatus D. E. Anderson, J. P. Smith 1971-6-18 - 1069 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  SEINET5766209 Image available Lupinus N. H. Russell 1967-1 67 -11 Humboldt Clam Beach County Park, about 10 miles north of Eureka Comment
  NY15765  Lupinus adsurgens V. K. Chesnut 1888-7-21 s.n. Humboldt West slope S. Fork Mt. Comment
  UC303158  Lupinus albicaulis var. shastensis Joseph P. Tracy 1923-6-19 6298 Humboldt near Kings Peak (Wilder Ridge); Northern Coast Ranges, near Kings Peak, Wilder Ridge 762 Comment
  UC146919  Lupinus albicaulis var. shastensis Harley P. Chandler June, 1901 1499 Humboldt near Weitchpec (Klamath River); North Coast Ranges, Klamath River 426 Comment
  RSA167471  Lupinus albifrons var. albifrons Joseph P. Tracy 1951-6-16 19472 Humboldt Near Oregon-California State Line. Comment
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Jul 12 2012
  HSC96201  Lupinus albifrons var. collinus Wanda Naylor, Laurel Goldsmith 2005-6-24 13 Humboldt S of Grouse Mountain on NF1 1595 Comment
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Jan 16 2014
  HSC44522  Lupinus andersonii Brad Klipfel 1973-7-1 129 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CHSC19515  Lupinus arboreus Wendell Wood 1970-10-7 307 Humboldt McKinleyville. Clam Beach. 0 Comment
  HSC14772  Lupinus arboreus R. I. Bonn 1965-5-9 43 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC40973  Lupinus arboreus Linda M. Barker 1976-5-13 1494 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  SD39025  Lupinus arboreus Edith A. Purer 1932-7-30 4682 Humboldt South of Orick, sand dunes Comment
  SEINET10544235  Lupinus arboreus Mary Susan Taylor 1990-8-22 Taylor 6070 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  UC146976  Lupinus arboreus Harley P. Chandler May, 1901 1238 Humboldt near Vance (on Mad River); North Coast Ranges, on Mad River 91 Comment
  RSA407033  Lupinus arboreus var. arboreus Charlotte M. Hoak 1931-7-14 s.n. Humboldt Above Eureka. Comment
  BLMAR611  Lupinus bicolor Jennifer Wheeler 2011-4-22 611 Humboldt King range, Strawberry Rock 243 Comment
  UC156990  Lupinus bicolor Joseph P. Tracy 1900-6-5 838 Humboldt Bucksport Northern Coast Region, region about Humboldt Bay (region about Humboldt Bay) 0 Comment
  RSA104683  Lupinus densiflorus var. densiflorus Joseph P. Tracy 1911-7-4 3280 Humboldt Valley of Trinity River near mouth of Willow Creek. 152 Comment
  HSC101035  Lupinus elmeri A. Thoele, Sydney Carothers 1995-7-14 57 Humboldt Six Rivers National Forest; .6 mi. south of intersection of Forest Route 1 & Rd. 3N06, on the edge of Route 1. 1720 Comment
  HSC74224  Lupinus latifolius subsp. viridifolius M. A. Baker 1980-7-19 3018 Humboldt Near Bret Hole. 1814 Comment
  SBBG13869  Lupinus latifolius var. latifolius H. and M. Dearing 1939-5-24 3423 Humboldt pass from Dyerville to coast, Cape Mendocino Comment
  SEINET10488741  Lupinus littoralis Joseph W. Congdon 1904-7-23 Congdon s.n. Humboldt peninsula, eureka. Comment
  JEPS85690  Lupinus rivularis W. L. Jepson 1936-8-17 17929 Humboldt 3 mi s Fields Landing (s of Stills Ranch); s of Fields Landing, s of Stills Ranch Comment
  UCD109515  Lupinus rivularis P. B. Kennedy 1928-7-15 s.n. Humboldt Sea Cliffe, near Trinidad. Comment
  HSC2118  Lupinus succulentus J. Wendell Howe Humboldt Cape Mendocino Comment
  HSC58042  Lupinus tracyi Gilbert Muth 1979-8-1 11890 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC59452  Lupinus tracyi Richard Runyon 1979-6-27 42 Humboldt Along trail to Trinity Summit Station, 50' S of intersection of Grogan hole-Devils backbone trail 1768 Comment
  UC1488744  Lupinus tracyi Marc Baker 1980-7-19 2987 Humboldt near Bret Hole 105 Comment
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Jul 7 2009
  HSC14889  Lupinus variicolor J. W. Johnson 1962-4-19 1279 Humboldt Manila, Samoa Peninsula Comment
  HSC14890  Lupinus variicolor J. W. Johnson 1961-9-10 1114 Humboldt Arcata, Christenson Farm or Hunt Farm, Samoa Peninsula Comment
  HSC67152  Luzula comosa J. P. Smith, Steve Selva 1970-6-30 4144 Humboldt Comment
  CAS-BOT-BC436737  Luzula comosa var. laxa R. K. Gierisch; D. H. Esplin 1969-7-1 3539 Humboldt Six Rivers area: Grouse Mt. 1584 Comment
  CAS-BOT-BC499137  Luzula macrantha Peter F. Zika 2011-7-3 25497 Humboldt Titlow Hill Road, 3.7 road miles SE of Rte 299 at Berry Summit, 1 air km SSW of Horse Mountain 1310 Comment
  SD46471  Luzula parviflora E. K. Balls, L. W. Lenz 1956-6-12 21662 Humboldt 4.4 miles southwest from Willow Creek, along US Highway 299 to Arcata. Common in shade on moist to wet seeps. 366 Comment
  UC183767  Luzula subsessilis Joseph P. Tracy 1914-5-14 4443 Humboldt Fort Seward Northern Coast Ranges, Fort Seward 121 Comment
  JEPS67157  Luzula subsessilis Joseph P. Tracy 1918-4-14 4877 Humboldt s end Dows Prairie (Fish's Mill Creek); Northern Coast Ranges, , s end Dows Prairie 60 Comment
  UC2982  Luzula subsessilis Harley P. Chandler May, 1901 1104 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  CAS-BOT-BC61930  Lycopodium clavatum Ethel Wickes 1923-3-1 s.n. Humboldt unspecified Comment
  SBBG56351  Lycopodium clavatum H. E. and W. K. Parks 1932-7-30 1132 Humboldt Camp 21, Hammond Lumber Co, Trinidad 152 Comment
  CAS-BOT-BC215681  Lycopus uniflorus Carl B. Wolf 1927-8-22 786 Humboldt Big Lagoon Comment
  RSA137264  Lysichiton americanus I. L. Wiggins 1957-6-19 14130 Humboldt East side of highway, Trinidad. Comment
  CAS-BOT-BC342807  Madia elegans Lincoln Constance; Reed C. Rollins 1942-5-11 2874 Humboldt California North Coast Ranges. Hoopa Valley 5 miles south of Hoopa 121 Comment
  HSC31215  Madia exigua D. E. Anderson 1972-6-20 5733 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  UC127609  Madia gracilis Mrs. M. H. Manning June, 1902 Humboldt Hupa Comment
  UC176421  Madia gracilis Joseph P. Tracy 1909-7-31 3029 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC176475  Madia gracilis Joseph P. Tracy 1913-6-13 4109 Humboldt opposite Buck Mountain (in Van Duzen River Valley, Dinsmore's Ranch); Northern Coast Ranges, in Valley of Van Duzen River, Dinsmor 762 Comment
  RSA47161  Madia gracilis subsp. gracilis Doris K. Kildale 1927-7-1 3619 Humboldt Alton Hill Comment
  NY214972  Madia gracilis subsp. pilosa J. P. Tracy 1931-6-28 9588 Humboldt Buck Mountain, lower foothills of its northwest slope 762.0 Comment
  CAS-BOT-BC343594  Madia sativa Doris K. Kildale 1925-7-28 1093 Humboldt Riverside on the Van Duzen River near Strong's Station Comment
  SBBG8899  Maianthemum dilatatum H. and M. Dearing 1939-5-26 3447 Humboldt Bishop Pine Lodge, N of Trinidad Comment
  UC146220  Maianthemum dilatatum J. P. Tracy 1906-11-4 2552 Humboldt immediate vicinity Eureka 0 Comment
  HSC101972  Maianthemum racemosum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 869 Humboldt Patterson Meadows 1566 Comment
  SBBG58731  Maianthemum racemosum R. Hartwell 1938-8-4 109 Humboldt opposite the Bull Crk Flat store Comment
  SEINET3992479  Maianthemum stellatum Unknown 1932-7-12 10455 Humboldt Near Corral Prairie; Trinity Summit 1585 Comment
  RSA21603  Maianthemum stellatum Carl B. Wolf 1937-9-14 9350 Humboldt North Coast Range, Lord Ellis Road, 0.5 mile east of summit of Willow Creek Grade 762 Comment
  CAS-BOT-BC347409  Malacothrix floccifera Walter Knight 1964-9-20 714 Humboldt Roadside US 101. Between Mendocino-Humboldt Co. line and Devoy Grove Comment
  HSC18696  Malus fusca W. R. Brigham 1962-5-19 10 Humboldt S of Big Lagoon. Comment
  UC1198762  Malus fusca Joseph P. Tracy 1926-4-11 7410 Humboldt Blue Slide Northern Coast Ranges (on Van Duzen River) 91 Comment
  UC154239  Malus fusca J. P. Tracy 1909-5-2 2954 Humboldt immediate vicinity Eureka 0 Comment
  RSA178549  Malus sylvestris Joseph P. Tracy 1950-4-23 18636 Humboldt Trinity River Valley, at Willow Creek. Comment
  HSC100569  Malva nicaeensis Carl C. Marshall Sep 1887 493 Humboldt Near lannery, Arcata and Salmon Creek. Comment
  HSC91615  Marah oregana E. Mackey 1987-5-7 Humboldt Patrick's Point State Park, Palmer's Point, at beginning of trail to beach. Comment
  UC168954  Marah oregana Joseph P. Tracy 1909-5-30 2980 Humboldt Eureka Northern Coast Region 0 Comment
  UCD106774  Medicago arabica W. Williams 1951-5-11 s.n. Humboldt location unknown. Comment
  HSC14987  Medicago lupulina J. E. Lankilla 1962-5-14 29 Humboldt West bank of river 1/2 mi. S of Fernbridge Comment
  HSC98388  Medicago lupulina Jana Kattenhorn 1970-10-28 144 Humboldt Mad River Bottoms, N Bank off Essex, off Hwy. 299 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
  RSA249711  Medicago polymorpha Robert F. Thorne 35258 Humboldt N edge of Eureka, E of Hwy. 101. 5 Comment
  UCD87523  Melica harfordii P. B. Kennedy 1916-6-1 s.n. Humboldt Eureka. Comment
  UC552689  Melica stricta Joseph P. Tracy 1935-7-28 14333 Humboldt Head of Brett Hole; Trinity Summit 1828 Comment
  UC552690  Melica stricta Joseph P. Tracy 1935-7-30 14377 Humboldt w side at top Salmon Summit 2103 Comment
  UC526917  Melica subulata Joseph P. Tracy 1933-7-26 12910 Humboldt Grouse Mountain; North Coast Ranges 1524 Comment
  HSC10365  Melica subulata D. C. Juve 1964-5-16 53 Humboldt Rousseau Ranch near Kneeland. Comment
  HSC104095  Melilotus albus Monica Rodriguez, William A. Worley 2015-3-21 23 Humboldt Along South Fork Rd, 8.6 mi. from 199 Redwood Hwy. Comment
  JEPS65536  Melilotus indicus Lincoln Constance 1934-5-26 662 Humboldt s end of Dyerville Bridge, South Fork of Eel River, Bull Creek Region Dyerville Bridge; Bull Creek Region, South Fork Eel River, Dyerville Bridge 45 Comment
  UC154012  Mentha canadensis J. P. Tracy 1905-9-3 2391 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  CHSC26754  Mentha pulegium M. S. Taylor 1977-8-5 1429 Humboldt Around ridge over Eel River, at turnoff from Hwy 101 to Ferndale, in Fernbridge. Comment
  RSA424585  Mentha pulegium T. S. Elias, Barbara A. Elias 1987-8-26 10627 Humboldt Fernbridge, 0.5 mile S of Route 101; along West bank of Eel River, about 0.5 mile N of bridge Comment
  UC154037  Menziesia ferruginea Joseph P. Tracy 1908-6-10 2676 Humboldt Region about Humboldt Bay, Freshwater Creek Freshwater Creek; Northern Coast Region, Region about Humboldt Bay, Freshwater 0 Comment
  RSA293124  Micropus californicus Thomas W. Nelson, Jane P. Nelson 1976-5-30 2621 Humboldt McKeown Ranch north of Dinsmore. Comment
  SEINET7887162 Image available Micropus californicus Unknown 1942-1 s.n. Humboldt Harris Road, 1 mile east of Garberville 30 Comment
  UC175183  Micropus californicus var. californicus Joseph P. Tracy 1913-6-13 4099 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  UC582506  Micropus californicus var. californicus Joseph P. Tracy 1927-7-4 8235 Humboldt Iaqua 609 Comment
  HSC58383  Microseris nutans Terry Griswold 1979-7-25 10913 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1784 Comment
  UC538045  Microseris nutans E. B. Babcock 1932-6-25 405 Humboldt n slope South Fork Mt. (Humboldt-Trinity Counties) 1524 Comment
  SEINET7879020 Image available Mimulus aurantiacus C. C. Harris, S. K. Harris 1936-1 681 Humboldt Open hillside above Carlotta, elevation about 200 feet, Humboldt County, California. 1 Comment
  HSC20645  Mimulus aurantiacus var. aurantiacus Paul Shields 1955-6-12 Humboldt 6 mi. W of Myers Flat Comment
  HSC20691  Mimulus aurantiacus var. aurantiacus S. J. Hawks 1965-5-18 83 Humboldt Clam Beach. Comment
  HSC73737  Mimulus breweri M. A. Baker 1980-7-22 3092 Humboldt Near Grogan Hole. 1676 Comment
  HSC100668  Mimulus cardinalis Carl C. Marshall Jul 1887 438 Humboldt Eel River Valley. Comment
  HSC20704  Mimulus cardinalis Paul Shields 1955-8-12 Humboldt 1/2 mi. N of Miranda Comment
  POM273295  Mimulus cardinalis Lyman Benson 1928-7-5 371 Humboldt 20 mi. South Garberville, North Coast mtn range, S. Fork Eel river 457 Comment
  UC147879  Mimulus dentatus J. P. Tracy 1900-5-30 833 Humboldt immediate vicinity Eureka 0 Comment
  HSC76255  Mimulus guttatus Denis Kearns 1981-7-23 403 Humboldt Near Whiteys Peak. 1524 Comment
  UC175795  Mimulus guttatus Joseph P. Tracy 1912-7-26 3825 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC582703  Mimulus guttatus Joseph P. Tracy 1935-5-25 13859 Humboldt Fort Seward 106 Comment
  JEPS10799  Mimulus inodorus Joseph P. Tracy 1935-7-23 14165 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  UC169096  Mimulus inodorus Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5500 Humboldt between Camp Grant and Pepperwood; North Coast Ranges Comment
  UC41883  Mimulus kelloggii Harley P. Chandler June 1901 1480 Humboldt Klamath River North Coast Ranges 426 Comment
  UC444806  Mimulus kelloggii Mrs. M. H. Manning 1901-5-26 Humboldt near Hupa; Hupa Valley Comment
  UC1222804  Mimulus layneae Joseph P. Tracy 1950-7-1 18955 Humboldt Friday Ridge 1219 Comment
  HSC99591  Mimulus moschatus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 260 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
  UC1196828  Mimulus nasutus J. P. Tracy 1896-6-25 131 Humboldt immediate vicinity Eureka 0 Comment
  HSC75461  Mimulus primuloides J. O. Sawyer 1980-7-18 3610 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC582492  Mimulus pulsiferae Joseph P. Tracy 1933-7-25 12838 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
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Sep 10 2013
  SEINET202012  Minuartia cismontana J. P. Tracy 1948-6-13 18055 Humboldt Ridge top near Harris 914 Comment
  CAS-BOT-BC174682  Minuartia cismontana H. E. Parks; J. P. Tracy 1930-5-25 0866 Humboldt Laribee Valley, Eastern Humboldt Co. Comment
  RSA168879  Minuartia nuttallii subsp. gregaria Joseph P. Tracy 1950-7-19 19190 Humboldt 1-2 miles south of Elk Valley, 2 miles southeast of Chimney Rock on extreme head of Blue Creek 1402 Comment
  HSC57673  Minuartia pusilla G. L. Clifton, Griswold 1979-7-25 10866 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC41843  Mitella ovalis N. G. Sugihara 1977-4-23 9 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC41896  Mitella ovalis M. A. Baker 1977-4-23 175 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  JEPS49683  Mitella ovalis Jos. P. Tracy 1901-12-13 818 Humboldt Eureka Comment
  UC154085  Mitella ovalis Joseph P. Tracy 1901-4-26 1049 Humboldt Humboldt Hill Northern Coast Region, Region about Humboldt Bay 0 Comment
  UC303176  Mitella ovalis Joseph P. Tracy 1923-4-8 6176 Humboldt Carlotta Northern Coast Ranges 60 Comment
  UC275345  Modiola caroliniana Joseph P. Tracy 1923-6-18 6288 Humboldt Northern Coast Ranges, Petrolia Petrolia Petrolia Petrolia; Northern Coast Ranges, Petrolia 60 Comment
  HSC73783  Moehringia macrophylla Gail Newton 1980-6-28 705 Humboldt Near Mad River Butte. 1536 Comment
  HSC74644  Moehringia macrophylla M. A. Baker 1980-5-17 1223 Humboldt Near Le Perron Peak 792 Comment
  HSC71820  Moehringia macrophylla Thomas W. Nelson, Jane P. Nelson 1980-6-27 5936 Humboldt Along old trail to pond above Alder Spring, 0.5 mi. N of campground 1555 Comment
  HSC57989  Monardella odoratissima G. L. Clifton, Griswold 1979-7-31 11732 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC14275  Monardella odoratissima Doris K. Kildale 1927-7-22 3814 Humboldt Lasseck's Peak Comment
  SEINET892718  Monardella purpurea Joseph P. Tracy 1947-1 17782 Humboldt Trinity Summit; ridge top one mile west of Mud Springs, in serpentine formation 1158 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
  RSA249710  Monotropa hypopitys R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-5 35132 a Humboldt Wailaki Recreation Site. 610 Comment
  CAS-BOT-BC444806  Montia diffusa Volney Rattan 1875-1-1 s.n. Humboldt Unspecified Comment
  RSA249389  Montia fontana D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5587 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  HSC93840  Montia howellii Claire Golec, Shawn Magnuson 1999-5-12 Humboldt Pacific Lumber Co. land, W side of Van Duzen River, 10 mi. W of Bridgeville Comment
  HSC31552  Montia parvifolia Glenn McGourty 1974-5-11 41 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  CAS-BOT-BC445153  Montia parvifolia Joseph P. Tracy 1933-5-20 12215 Humboldt Wild Cat [Wildcat] Ridge, south of Ferndale 304 Comment
  CAS-BOT-BC445161  Montia parvifolia Henry M. Pollard 1948-7-24 s.n. Humboldt Along road near Orleans Comment
  HSC17672  Montia parvifolia C. E. Fellows 1957-4-27 128 Humboldt 1 mi. W of Honeydew Comment
  JEPS43174  Montia parvifolia Milo S. Baker 1923-7-31 143 Humboldt Butte's Run; North Coast, Butte's Run Comment
  HSC16100  Morella californica P. Markle 1962-5-24 63 Humboldt Edge of 18th St. in Arcata 30 Comment
  OBI22021  Muhlenbergia filiformis Joseph P. Tracy 18-Sep-19 5233 Humboldt Trinity Summit 1829 Comment
  HSC63980  Myosotis sylvatica J. P. Smith 1973-5-26 6855 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  SEINET5624090 Image available Myosotis versicolor Joseph P. Tracy 1942-1 17116 Humboldt Englewood Prairie Comment
  UC5280  Myrica californica Harley P. Chandler May, 1901 1168 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  SEINET6671234 Image available Myrica californica C. L. Hitchcock, J. S. Martin 1939-1 5437 a Humboldt Shelter Cove Comment
  HSC54718  Navarretia capillaris Overton, Butler 1979-7-26 10083 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  JEPS70295  Navarretia divaricata Joseph P. Tracy Jul 16 1930-Jul 19 1930 9065 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC82413  Navarretia divaricata Thomas W. Nelson 1979-7-11 5033 Humboldt Along trail from Grogan's Hole to summit of N Trinity Mtn. Comment
  CDA40110  Navarretia squarrosa E. C. Whitney 1976-7-22 s.n. Humboldt Vic Guynup property, Field Brook. 0 Comment
  UC1198519  Navarretia tagetina Joseph P. Tracy 1934-7-9 13344 Humboldt Dobbyn Creek Northern Coast Ranges 152 Comment
  JEPS70515  Navarretia viscidula Joseph P. Tracy 1927-7-24 8294 Humboldt Upper Mattole 152 Comment
  SEINET3156479  Nemophila heterophylla D. E. Anderson 1965-5-8 3650 Humboldt About 3 miles N of Willow Creek along road on E side of Trinity River. Comment
  HSC34960  Nemophila menziesii var. atomaria Thomas W. Nelson 1975-5-24 1868 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC35549  Nemophila menziesii var. atomaria Mary H. Manning Humboldt Hupa Comment
  HSC13582  Nemophila menziesii var. atomaria Doris K. Kildale 1926-2-27 1517 Humboldt Big Rock at Little River Comment
  HSC38261  Nemophila menziesii var. atomaria Thomas W. Nelson, James Nelson 1976-3-11 2268 Humboldt Beside Bridgeville-Kneeland Rd. at jct. with Redwood House Rd. Comment
  SEINET5521025  Nemophila menziesii var. atomaria J. P. Tracy 1906-5-6 2445 Humboldt Near Hydesville 60 Comment
  UC203959  Nemophila menziesii var. atomaria Joseph P. Tracy 1918-4-7 4867 Humboldt Moonstone Beach Northern Coast Ranges, Little River, Moonstone Beach (mouth of Little River, grassy slopes facing ocean) 15 Comment
  UC146185  Nemophila pedunculata Joseph P. Tracy 1908-6 2700 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 457 Comment
  OBI14330  Notholithocarpus densiflorus var. densiflorus H. E. McMinn 1931-6-27 2542 Humboldt Summit above Weitepp; T & K river Comment
  HSC49510  Nuphar polysepala R. York 1979-4-16 263 Humboldt Along Hwy. 101 across from Clam Beach between Westhaven and McKinleyville 0 Comment
  HSC26343  Oemleria cerasiformis Thomas W. Nelson 1971-4-4 371 Humboldt Beside Hwy. 36 at Dinsmore Comment
  HSC93223  Oemleria cerasiformis Gordon Leppig 1998-3-9 713 Humboldt Arcata, West End Rd., 0.3 mi. W of Ericson Way 30 Comment
  UC1198789  Oemleria cerasiformis Joseph P. Tracy 1933-3-26 10946 Humboldt hills at n end Big Lagoon 60 Comment
  CHSC31294  Oenanthe sarmentosa Mark Stopher 1980-6-4 106 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  HSC90660  Oenanthe sarmentosa Gail Newton 1982-6-10 3639 Humboldt Elk River Wildlife Area, Eureka Comment
  RSA21623  Oenothera wolfii Carl B. Wolf 1937-9-9 9307 Humboldt 2 miles S of Cape Mendocino. 6 Comment
  UC203546  Oenothera wolfii Joseph P. Tracy 1918-7-1 4968 Humboldt moist bluff Northern Coast Ranges, Cape Mendocino (three mi s of point of cape) 3 Comment
  HSC37886  Olsynium douglasii var. douglasii Thomas W. Nelson 1976-4-3 2288 Humboldt On large rock at head of Goat Rock slide, N side of Van Duzen River Comment
  HSC5070  Oreostemma alpigenum var. andersonii J. P. Tracy 1919-9-22 5278 Humboldt Trinity Summit 1890 Comment
  BLMAR171  Orobanche uniflora Donald Hazlett 1994-6-7 171 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC1197565  Orthilia secunda Joseph P. Tracy 1919-9-18 5251 Humboldt Trinity Summit 1524 Comment
  HSC100676  Orthocarpus faucibarbatus Carl C. Marshall Apr 1886 170 Humboldt Fields near bay. 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
  HSC100677  Orthocarpus lithospermoides Carl C. Marshall Jun 1887 406 Humboldt Spruce Grove. Comment
  HSC100940  Orthocarpus pusillus Miss Handy Jun 1886 340 Humboldt Maple Cr. Comment
  HSC56049  Osmorhiza occidentalis G. L. Clifton, Terry Griswold 1979-7-31 11645 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC1222753  Osmorhiza occidentalis Joseph P. Tracy 1950-6-25 18887 Humboldt Burr Valley Buck Mountain (nw slope of mt.) 1066 Comment
  HSC33742  Oxalis articulata subsp. rubra John Palmer 1975-5-24 374 Humboldt Samoa Dunes, off Samoa Blvd. across from the boat landing Comment
  HSC12755  Oxalis corniculata M. J. Athey 1970-11-22 23 Humboldt In Arcata along G street in front of P G & E Comment
  CHSC32846  Oxalis oregana Lora L. Anderson 1981-4-25 3 Humboldt Ca. 1/2 mi s of Redwood Creek, 4 mi n on Redwood Valley Rd. off hwy 299 w 16 mi ne of Arcata. 457 Comment
  SDSU604  Oxalis oregana D. F. Howe 1962-5-22 3309 Humboldt 3 miles east of Orick on Bald Mt. road. 396 Comment
  UC1197421  Oxalis oregana Joseph P. Tracy 1901-6-10 1136 Humboldt Eureka Northern Coast Ranges 0 Comment
  HSC16709  Oxalis oregana D. E. Anderson 1963-2-9 2366 Humboldt S of Kneeland on Rd. to Brigeville Comment
  HSC69850  Oxalis oregana R. Kalal 1979-5-5 42 Humboldt Fickle Hill Rd., 1.0 mi. E of 11th St. 183 Comment
  JEPS43153  Oxalis oregana Lincoln Constance 1934-5-23 605 Humboldt se slope mt.above Look Prairie; Bull Creek Region, South Fork Eel River Comment
  UC1103420  Oxalis oregana Joseph P. Tracy 1923-5-13 6198 Humboldt near Strong's Station (on Van Duzen River); Northern Coast Ranges 60 Comment
  UC1103421  Oxalis oregana Joseph P. Tracy 1926-7-5 7721 Humboldt near Redwood House (head of Grizzle Creek, towards South Yager); Northern Coast Ranges 609 Comment
  UC1197420  Oxalis oregana Joseph P. Tracy 1926-4-25 7413 Humboldt Strong's Station Northern Coast Ranges 60 Comment
  UCD110988  Oxalis oregana T. E. Weier 1942-5-21 s.n. Humboldt near Dyerville, Highway 101. Comment
  UCSB7499  Oxalis oregana Phillips, Priscilla 1958-6-7 Humboldt Near entrance to Prairie Creek Redwood Park, north of Orick Comment
  HSC55133  Oxalis trilliifolia G. L. Clifton, Griswold 1979-8-1 11967 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UC668042  Oxalis trilliifolia Joseph P. Tracy 1936-8-8 15143 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  RSA20792  Oxalis trilliifolia Carl B. Wolf 1937-8-13 9257 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  CAS-BOT-BC318155  Packera bolanderi var. bolanderi LeRoy Abrams 1916-7-11 6009 Humboldt Mouth of Grizzly Creek on Van Duzon River Comment
  CAS-BOT-BC318158  Packera bolanderi var. bolanderi Volney Rattan 1878-1-1 s.n. Humboldt unspecified Comment
  UC1103407  Parapholis incurva Joseph P. Tracy 1937-6-5 15328 Humboldt mouth of Little River 3 Comment
  UC594151  Parapholis incurva S. K. Harris, J. P. Tracy 1936-6-6 3218 Humboldt Eureka, near railroad station Comment
  JEPS23565  Parentucellia viscosa Peter H. Raven with R. Snow 1958-7-21 13652 Humboldt 2.9 mi s Ferndale (on road to Cape Mendocino) Comment
  SEINET10810981  Parentucellia viscosa J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13017 Humboldt North of McKinleyville on U.S. 101 (a few kilometers north of Eureka), on northbound off-ramp (southbound labelled as Route 101 Business) leading to Clam Beach County Park. Comment
  HSC74501  Parnassia palustris Gail Newton 1980-8-10 2048 Humboldt Near Blake Mtn. 1707 Comment
  CDA5493  Pastinaca sativa Cogswell 1951-6-5 Humboldt 0 Comment
  BLMAR697  Paxistima myrsinites Jennifer Wheeler 2011-5-24 697 Humboldt Lacks Creek, Pine Ridge/Stormy saddle road junction 975 Comment
  HSC39934  Paxistima myrsinites J. O. Sawyer 1970-6-25 2291 Humboldt 1646 Comment
  HSC45648  Pedicularis densiflora Diane L. Reed 1978-4-22 14 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC55728  Penstemon anguineus G. L. Clifton, Terry Griswold 1979-7-26 10200 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  HSC75553  Penstemon anguineus J. O. Sawyer, R. J. Cole 1977-7-3 3010 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  SDSU10915  Penstemon anguineus D. F. Howe 1964-8-7 3945 Humboldt 6.2 miles from #96 on Mill Creek Road, Hoopa Valley. 1067 Comment
  UC1222461  Penstemon heterophyllus Joseph P. Tracy 1936-6-17 14973 Humboldt at crossing of highway below Larrabee Valley (Little Van Duzen River); , below Larrabee Valley 713 Comment
  JEPS11368  Penstemon heterophyllus var. purdyi Lincoln Constance 1934-5-26 676 Humboldt s end of Dyerville Bridge Bull Creek Region, South Fork Eel River, Dyerville Bridge (South Fork Eel River, Bull Creek Region) 45 Comment
  HSC73698  Penstemon laetus subsp. sagittatus M. A. Baker 1980-7-15 2971 Humboldt Near Whiting Ridge. 1341 Comment
  HSC39932  Penstemon laetus subsp. sagittatus J. O. Sawyer 1970-6-25 2293 Humboldt 1646 Comment
  UC1222460  Penstemon laetus var. sagittatus Joseph P. Tracy 1935-7-29 14338 Humboldt near Ranger Station (Trinity Summit); Trinity Summit 1828 Comment
  JEPS9101  Penstemon newberryi var. berryi Joseph P. Tracy Jul 16-19 1930 8953 Humboldt South Fork Mountain, along summit near Blake lookout Northern Coast Ranges 1706 Comment
  SFV18589  Penstemon parvulus T. W. Nelson, J. P. Nelson 1987-6-11 8555 Humboldt Along Forest Road 13N01, 0.25 miles south of turn off to Onion Lake. 1098 Comment
  RSA46686  Penstemon purpusii Doris K. Kildale 1937-7-18 15141 Humboldt Horse Mt. Comment
  JEPS7919  Penstemon rattanii Joseph P. Tracy 1930-8-24 9166 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC201729  Penstemon rattanii unknown 1883-6-9 Humboldt near Kneeland Pr.; near Kneeland Pr. Comment
  UC184100  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1913-9-7 4390 Humboldt Eureka Northern Coast Region 0 Comment
  HSC98551  Perideridia howellii Cara Witte 2007-8-1 613 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  UC642256  Perideridia howellii Joseph P. Tracy 1937-8-7 15615 Humboldt 1 mi n Murphy Meadow; Bald Mt. 914 Comment
  UC642305  Perideridia howellii Joseph P. Tracy 1939-9-4 16474 Humboldt Larrabee Valley; gully in foothills at edge of valley 731 Comment
  HSC98753  Perideridia oregana Cara Witte 2007-7-27 601 Humboldt National Forest 1. 1.5 miles southeast of Forest Service Road 5N09. 1560 Comment
  HSC56062  Perideridia parishii subsp. latifolia G. L. Clifton, Terry Griswold 1979-7-31 11706 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC1197119  Perideridia parishii subsp. latifolia E. Ethel Tracy 1919-8-1 Humboldt Trinity Summit Northern Coast Ranges 1524 Comment
  CAS-BOT-BC413713  Persicaria hydropiper Malcom A. Nobs; S. Galen Smith 1949-8-11 1336 Humboldt Marsh at eastern shore of Stone Lagoon Comment
  POM41563  Petasites palmatus Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  HSC65662  Phacelia bolanderi J. P. Smith, Steve Selva 1970-6-14 3821 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  POM287459  Phacelia bolanderi Lyman Benson 1929-7-16 1839 Humboldt Dyerville Junction of North and South Forks of Eel River. Comment
  JEPS1545  Phacelia corymbosa Joseph P. Tracy 1926-6-20 7624 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  JEPS1200  Phacelia malvifolia Joseph P. Tracy 1934-6-10 13212 Humboldt DRY LAGOON (Along coast in front South End of Stone Lagoon.) Comment
  HSC57184  Phacelia mutabilis Griswold, Butler 1979-7-10 6383 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC906637  Phacelia mutabilis Joseph P. Tracy 1947-7-9 17832 Humboldt lower slopes Horse Mountain 1219 Comment
  UC562570  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1936-6-9 14876 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  UC1222902  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1950-6-8 18737 Humboldt ridge summit near Mountain Glen Ranch (7 mi s of Ferndale); Bear River Ridge 609 Comment
  HSC58070  Phacelia procera G. L. Clifton, Griswold 1979-8-1 11955 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  BLMAR51  Phalaris californica Brad Barr June, 1982 51 Humboldt King range, Lake ridge Nroth facing slope Comment
  RSA0057781  Philadelphus lewisii Joseph P. Tracy 1950-6-18 18853 Humboldt Along Redwood Creek, 2 miles W of Briceland. Comment
  SEINET202724  Philadelphus lewisii subsp. californicus Joseph P. Tracy 1950-6-18 18853 Humboldt Along Redwood Creek, two miles west of Briceland. Comment
  HSC58687  Phleum alpinum G. L. Clifton, Griswold 1979-8-2 12405 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UCD89305  Phleum alpinum Don Hagar 1957-8-6 s.n. Humboldt Jackson Hole, west slope of the Trinity Summit area. 1645 Comment
  CAS-BOT-BC250881  Phleum pratense Doris K. Kildale 1928-6-24 7064 Humboldt Redwood Creek at Berry's Comment
  UC1145044  Phleum pratense Joseph P. Tracy 1947-8-24 17899 Humboldt Meadow at Box Camp Trinity Summit 1463 Comment
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Aug 5 2009
  UC1178964  Phlox adsurgens Joseph P. Tracy 1932-7-13 10488 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  HSC49981  Phlox adsurgens M. A. Baker 1979-6-7 779 Humboldt N bank of road to Snow Mtn. 610 Comment
  RSA167445  Phlox adsurgens Joseph P. Tracy 1950-7-2 18965 Humboldt Happy Camp Mountain (in Trinity Summit Range, 6 miles NE of Hawkins Bar.) 1280 Comment
  RSA256575  Phlox adsurgens J. O. Sawyer 1970-6-24 2262 Humboldt S of Mill Creek Gap. F.S. Road 10N02. 1433 Comment
  UC908605  Phlox gracilis Joseph P. Tracy 1932-7-10 10380 Humboldt Corral Prairie Trinity Summit 1584 Comment
  JEPS42597  Phoradendron villosum Lincoln Constance 1934-5-29 737 Humboldt Bull Creek Region, S. Fork Eel R., Upper Look Prairie 365 Comment
  RSA683018  Phyllospadix scouleri R. Setzer 1972-7-29 7010 Humboldt Palmer Point; Patrick s Point State Park. Comment
  UC672882  Phyllospadix torreyi Joseph P. Tracy 1938-9-9 Humboldt Trinidad Comment
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Dec 13 2006
  CAS-BOT-BC140581  Physocarpus capitatus Thomas Nelson; Linda Barker 1977-6-3 3387 Humboldt On flood plain of Mad River at south end of Mad River Bridge 53 Comment
  HSC31649  Physocarpus capitatus Timothy B. Devine 1974-5-4 327 Humboldt Mad River floodplain 1 mi. from Blue Lake on Hatchery Rd. 305 Comment
  JEPS44665  Physocarpus capitatus Lincoln Constance 1934-5-26 656 Humboldt s end Dyerville Bridge (s bank of S. Fork of Eel River); Bull Creek Region Comment
  UC162338  Physocarpus capitatus Joseph P. Tracy 1911-7-7 3394 Humboldt 3 mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch, at the meadows on mountain side); Northern Coast Ranges 914 Comment
  NY34414  Picea sitchensis L. Abrams 1916-7-18 6131 Humboldt Arcata to Trinidad Comment
  OBI33130  Picea sitchensis David J. Keil 1983-7-1 17295 Humboldt Between Ferndale and Bear River Ridge Rd along Mattole Rd Comment
  POM213420  Picea sitchensis C. B. Wolf 1930-10-28 1781 Humboldt 5 miles S Ferndale on road to Petrolia. 152 Comment
  CAS-BOT-BC73199  Pinus jeffreyi Doris K. Kildale 1926-9-5 2648 Humboldt Lassen's Peaks. Signal Peak. 1791 Comment
  HSC54523  Pinus jeffreyi Overton, Butler 1979-7-23 9455 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  HSC74337  Pinus lambertiana M. A. Baker 1980-5-18 1280 Humboldt Near Black Mtn. 1006 Comment
  HSC98813  Pinus monticola Cara Witte 2008-7-7 835 Humboldt Horse Mountain Botanical Area. 1/4 mile east of intersection National Forest 1, Forest Service Roads 6N36 and 6N38. 1415 Comment
  UC502915  Pinus monticola Joseph P. Tracy 1927-6-12 8134 Humboldt Horse Mountain Northn Coast Ranges, Horse Mountain (in open forest of Jeffrey Pine) 1524 Comment
  CAS-BOT-BC79025  Pinus ponderosa Doris K. Kildale 1927-2-20 2900 Humboldt [Lassecks] Lassics Peaks Trail, Cold Spring, Goat Camp 914 Comment
  HSC104330  Piperia candida James Regan, Humboldt Redwood Co., LLC 2010-7-8 26 Humboldt Top of Thompson Creek, Larabee area 610 Comment
  CAS-BOT-BC137277  Piperia elegans Mrs. H. C. Cantelow 1940-7-6 4062 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  HSC102544  Piperia unalascensis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1534 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC667001  Plagiobothrys bracteatus Joseph P. Tracy 1939-4-29 16232 Humboldt Hoopa Valley 106 Comment
  UC552841  Plagiobothrys bracteatus Joseph P. Tracy 1935-5-30 13916 Humboldt Willow Creek Trinity River Valley (bed of dried-up pond) 152 Comment
  CAS-BOT-BC228214  Plagiobothrys hispidulus Joseph P. Tracy 1932-7-10 10386 Humboldt Klamath Mountains, Trinity Summit. At Corral Prairie 1524 Comment
  CAS-BOT-BC228213  Plagiobothrys hispidulus Joseph P. Tracy 1935-7-25 14226 Humboldt Klamath Mountains, Trinity Summit. At Corral Prairie 1524 Comment
  SEINET3152905  Plagiobothrys nothofulvus N. Dennis 1965-6-11 114 Humboldt About 1/4 miles S and 1 mile E of the juction of Berry Ridge Road and the Eureka-Bridgeville county road, along Ashfield Ridge Road. About 5 miles SE of Kneeland. 792 Comment
  UC1222213  Plagiobothrys reticulatus Joseph P. Tracy 1942-5-16 17337 Humboldt Garberville 152 Comment
  UC552846  Plagiobothrys reticulatus Joseph P. Tracy 1935-5-25 13860 Humboldt Fort Seward 106 Comment
  UC526823  Plagiobothrys reticulatus Joseph P. Tracy 1923-6-20 6340 Humboldt Miranda North Coast Ranges, Miranda 91 Comment
  UC526825  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1932-6-26 10274 Humboldt Fort Baker Ranch North Coast Ranges, Fort Baker Ranch 762 Comment
  UC1222197  Plagiobothrys scouleri Joseph P. Tracy 1948-5-31 18021 Humboldt at the former William Perry place Dobbyn Dreek Comment
  UC1222196  Plagiobothrys trachycarpus Joseph P. Tracy 1948-5-31 17987 Humboldt Robertson's Ranch halfway between Garberville and Harris; Robertson's Ranch 609 Comment
  JEPS7112  Plantago elongata Joseph P. Tracy 1927-6-26 8218 Humboldt Stone Lagoon 6 Comment
  JEPS14285  Plantago erecta J. P. Tracy 1919-4-27 5133 Humboldt opposite Eureka (Ocean Beach); Samoa Comment
  UC198604  Plantago erecta Joseph P. Tracy 1917-5-30 4793 Humboldt mouth of Little River North Coast Ranges, Little River 6 Comment
  CHSC31323  Plantago lanceolata Mark Stopher 1980-6-4 90 Humboldt Along Elk River near Rte 101 bridge. 1 Comment
  SEINET10782201  Plantago major J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13016 Humboldt On U.S. 101, near Holmes, 1.76 km south of Stafford Road. Comment
  HSC89977  Plantago maritima Leonel Arguello 1989-7-14 Humboldt Lanphere-Christensen Dunes Preserve 3 mi. W of Arcata. Comment
  UC585992  Plantago subnuda Joseph P. Tracy 1927-6-26 8220 Humboldt Stone Lagoon 9 Comment
  HSC55142  Platanthera dilatata var. leucostachys G. L. Clifton, Griswold 1979-8-1 12029 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC46168  Platanthera dilatata var. leucostachys J. P. Smith, Steve Selva 1970-6-30 4123 Humboldt Comment
  HSC70989  Platanthera sparsiflora Gail Newton 1980-7-20 1648 Humboldt Near Bell Swamps 1426 Comment
  HSC98061  Platanthera sparsiflora Cara Witte 2007-7-11 493 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  UC1196294  Platystemon californicus Joseph P. Tracy 1944-5-14 17466 Humboldt at Bucksport Bucksport (near Eureka); near bay shore at Bucksport (near Eureka) 6 Comment
  HSC59486  Plectritis congesta M. A. Ericksen 1979-4-29 239 Humboldt 0.4 mi. N of Coast Guard Station, Samoa Peninsula. Comment
  UC602505  Plectritis congesta Joseph P. Tracy 1930-6-8 8734 Humboldt Kneeland Prairie 762 Comment
  BLMAR628  Plectritis congesta subsp. brachystemon Jennifer Wheeler 2011-6-15 628 Humboldt Lacks Creek, Pine Ridge Road 1097 Comment
  HSC96230  Plectritis congesta subsp. brachystemon Kaylea Eickhoff, Cara M. Witte 2005-6-3 2 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment
  HSC21695  Plectritis congesta subsp. brachystemon Paul Shields May 1955 Humboldt 8 mi. S of Arcata. Comment
  HSC54031  Pleuropogon refractus Griswold, Butler 1979-7-12 7222 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1103799  Pleuropogon refractus Joseph P. Tracy 1936-8-7 15093 Humboldt head of Little Hors-Linto Creek (Trinity Summit); , Little Hors-Linto Creek 1371 Comment
  UC1145106  Pleuropogon refractus Joseph P. Tracy 1950-7-2 18961 Humboldt 6 mi. n.e. Hawkins Bar (at Fern Spring, Happy Camp Mt..); Trinity Summit Range, Happy Camp Mt., Fern Spring 1280 Comment
  UC1145107  Pleuropogon refractus Joseph P. Tracy 1939-7-9 16334 Humboldt Snow Camp 1402 Comment
  UCD90102  Pleuropogon refractus Harley P. Chandler 1901-5-1 1107 Humboldt Humboldt Bay. 15 Comment
  UCD90104  Pleuropogon refractus R. Tofsrud 1949-7-22 s.n. Humboldt on road between Scotia and Capetown. Comment
  HSC10624  Poa annua E. W. Styskel 1964-4-12 65 Humboldt Corner of Center St. and Hwy. 101 in Rio Dell. Comment
  SEINET7297590 Image available Poa bolanderi Joseph P. Tracy 1937-1 15581 Humboldt South Fork Mountain; Openings in fir forest near McKay camp. 1676 Comment
  SEINET200569 Image available Poa bulbosa Joseph P. Tracy 1942-2-6 17104 Humboldt Valley of South Yager Creek 762 Comment
  UC525617  Poa compressa Joseph P. Tracy 1925-7-5 7182 Humboldt High Prairie on Bald Mt; Northern Coast Ranges 1066 Comment
Read comments
Jul 18 2012
  UC525632  Poa compressa Joseph P. Tracy 1927-7-3 8224 Humboldt Fieldbrook 60 Comment
  HSC10689  Poa confinis L. H. Myers 1963-5-3 49 Humboldt Sand dunes W of Lanphere's Rd., Mad River Slough area. Comment
  SEINET236442 Image available Poa howellii Joseph P. Tracy 1906-6-10 2486 Humboldt Kneeland Prairie. 762 Comment
  UCSC000061  Poa howellii H. S. Yates 1936-6-17 5709 Humboldt Lower NW slope of Buck Mtn. - South Fork Pk. 792 Comment
  POM126109  Poa kelloggii Joseph P. Tracy 1906-5-20 2463 Humboldt Near Eureka; Region about Humboldt Bay 0 Comment
  CAS-BOT-BC254278  Poa macrantha David D. Keck; J. Clausen 1935-6-16 3382 Humboldt Mouth of Little River Comment
  CAS-BOT-BC254284  Poa macrantha W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  RSA296739  Poa macrantha J. P. Smith, Thomas W. Nelson 1977-6-30 9223 B Humboldt Samoa Peninsula just east of the drag strip. Comment
  SD39642  Poa macrantha Edith A. Purer 1932-7-27 4156 Humboldt Samoa, sand dunes Comment
  UCD91548  Poa macrantha Joseph P. Tracy 1947-7-3 17766 Humboldt at mouth of Little River. 6 Comment
  RSA54930  Poa macrantha W. A. Silveus 1938-7-10 6912 Humboldt North of Eureka Comment
  CAS-BOT-BC255942  Poa pratensis Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC70904  Poa secunda subsp. secunda R. York 1980-5-18 598 Humboldt Near Black Mountain 792 Comment
  HSC98797  Poa secunda subsp. secunda Cara Witte 2008-6-11 712 Humboldt National Forest Road 5N10. 2.5 miles south of intersection with Forest Service Road 5N41. 1303 Comment
  UC1103169  Poa secunda subsp. secunda Joseph P. Tracy 1921-4-24 5465 Humboldt facing S Fork of Eel River Phillipsville; Northern Coast Ranges 121 Comment
  UC1103182  Poa unilateralis Joseph P. Tracy 1904-5-1 2050 Humboldt bluff near Bucksfort; Northern Coast Ranges, Humboldt Bay 0 Comment
  UC1988936  Pogogyne zizyphoroides Joseph P. Tracy 1938-7-5 16005 Humboldt Carlotta, five miles east of town, open flat by old Strong's District School House 45 Comment
  UC17437  Polygala californica Harley P. Chandler June 1901 1328 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC17220  Polygala californica R. Spellenberg 1964-6-16 435 Humboldt 0.25 mi. W of Hwy. 299 bridge over S Fork of Trinity River Comment
  HSC44772  Polygala californica Thomas W. Nelson, Jane P. Nelson 1977-7-4 3585 Humboldt W side of road N from Alder Springs 1494 Comment
  HSC41294  Polygala cornuta Brad Klipfel 1974-7-27 494 Humboldt Horse Mtn. Comment
  UC179957  Polygonum bistortoides Joseph P. Tracy 1914-7-4 4536 Humboldt Bald Mountain Northern Coast Ranges (High Prairie) 1066 Comment
  HSC54692  Polygonum douglasii Overton, Butler 1979-7-26 9989 Humboldt Near Willow Creek 1341 Comment
  UC672962  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1933-8-30 13042 B Humboldt Grouse Mountain 1524 Comment
  UC672964  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1930-6-21 8779 Humboldt Larrabee Valley 731 Comment
  UC535117  Polygonum douglasii subsp. spergulariiforme H. E. Parks, J. P. Tracy 1930-9-15 767 Humboldt Kneeland Bald Hills Comment
  CAS-BOT-BC109186  Polygonum paronychia Ira L. Wiggins 1930-7-11 4685 Humboldt Near Samoa. Comment
  HSC17517  Polygonum paronychia J. R. Kahl 1962-4-26 18 Humboldt 1 mi. N of Samoa, 1000 yards from ocean. Comment
  JEPS79950  Polygonum polystachyum Joseph P. Tracy 1940-10-18 16775 Humboldt Eureka 30 Comment
  CDA2921  Polygonum polystachyum T. C. Fuller 1961-9-27 7042 Humboldt Highway 101 2.5 miles north of Trinidad. 0 Comment
  CDA2919  Polygonum sachalinense T. C. Fuller 1960-8-25 4973 Humboldt Northwestern; Outer North Coast Ranges region; West of Highway 101, 0.25 mile north of Humboldt Hill Road, Eureka. 0 Comment
  HSC35604  Polygonum spergulariiforme Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2015 Humboldt French Camp, Bald Hills. Comment
  HSC95875  Polypodium calirhiza Will Ferrand 2002-5-7 46 Humboldt 200 ft. N of the intersection of Lanphere Rd. and the entrance to Lanphere Dunes Preserve 9 Comment
  CAS-BOT-BC76844  Polypodium glycyrrhiza Donald Branscomb 1959-2-1 s.n. Humboldt Trinidad Comment
  CAS-BOT-BC76839  Polypodium glycyrrhiza M. S. Taylor; L. Ahart; J. Jokerst 1982-1-17 5215 Humboldt Vicinity of mouth of Flag Canyon. On top of North Table Mt., ca. 8 mi. N of Oroville. 373 Comment
  HSC1109  Polypodium glycyrrhiza Gene S. Van Horn 1962-1-12 8 Humboldt 150 yards from mouth of E creek leading into the HSC reservoir 61 Comment
  UC1746694  Polypodium glycyrrhiza R. M. and A. F. Tryon Jun 1958 5560 Humboldt NW of Weott; S fork of the Eel River Comment
  RSA137268  Polypodium scouleri I. L. Wiggins 1957-6-20 14133 Humboldt East side of highway, Trinidad Comment
  SEINET200576 Image available Polypogon interruptus Joseph P. Tracy 1927-7-16 8260 Humboldt on pasture. Comment
  UCD91265  Polypogon monspeliensis Harley P. Chandler 1901-6-1 1431 Humboldt North Coast Ranges. Klamath River. 335 Comment
  HSC76326  Polystichum imbricans Denis Kearns 1981-7-21 296 Humboldt Near Whiteys Peak 1585 Comment
  UCD39987  Polystichum imbricans subsp. curtum Rodney Gale Myatt 1971-9-22 1198 B Humboldt Along Salmon River, southeast of Somes Bar, and northeast of Hoopa Reservation. 426 Comment
  HSC55170  Polystichum munitum Gilbert Muth 1979-8-1 12166 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC906749  Polystichum munitum Joseph P. Tracy 1947-7-9 17843 Humboldt Horse Mt. 1432 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
  SEINET3874030 Image available Polystichum munitum var. imbricans Thomas Nelson, Jane P. Nelson; James Nelson 1975-6-14 1903 Humboldt Beside branch off Rd. 2S08 to Pine Mountain.; 0 Comment
  UC249560  Populus trichocarpa Joseph P. Tracy 1922-10-8 6123 Humboldt Mad River at Blue Lake; Northern Coast Ranges, Mad River at Blue Lake 30 Comment
  UC672878  Potamogeton foliosus H. E. Parks and Joseph P. Tracy 1933-6-11 12548 Humboldt near Miranda 91 Comment
  CAS-BOT-BC453908  Potamogeton pectinatus Henry M. Pollard 1946-8-13 s.n. Humboldt Near Harley place, Orleans region Comment
  CAS-BOT-BC143071  Potentilla anserina subsp. pacifica Carl B. Wolf 1937-9-12 9326 Humboldt Dry Lagoon State Park 4 Comment
  JEPS24329  Potentilla anserina subsp. pacifica Lincoln Constance 1934-6-18 903 Humboldt near South Fork R.R. Station and P.O. (border of North Dyerville Flat); South Fork Eel River, Bull Creek Region Comment
  UC1191497  Potentilla anserina subsp. pacifica Malcolm A. Nobs, S. Galen Smith 1949-8-3 1161 Humboldt 1 mi s Fields Landing; Eel River Valley, s of Fields Landing Comment
  UC420576  Potentilla gracilis P. E. Goddard 1906-6 668 Humboldt Lasseck Pk Comment
  HSC98450  Potentilla gracilis John Rehling 1974-7-12 11 .5 Humboldt Near the Bald Hills Rd., 23.5 mi. from Hwy. 101 Comment
  HSC98882  Potentilla gracilis var. fastigiata Cara Witte 2008-7-30 962 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1589 Comment
  HSC34911  Prosartes hookeri Thomas W. Nelson, James Nelson 1975-5-24 1854 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC15462  Prosartes hookeri T. W. Beck 1963-5-10 46 Humboldt Camp Bauer, Korbel Comment
  CAS-BOT-BC517510  Prosartes smithii Doris K. Kildale 1930-4-27 9563 Humboldt Prairie Creek, near Orick Comment
  SEINET12050891  Prosartes smithii F. H. Utech 1977-1 77 -370 Humboldt ca 4.5 mi S of Del Norte County line on US 101 enroute to Crescent City Comment
  HSC14311  Prunella vulgaris Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  UC1541658  Prunella vulgaris Harold E. Parks May 1933 4309 Humboldt Spruce Cove Trinidad; Spruce Cove Comment
  UCLA49214  Prunella vulgaris var. lanceolata Joseph P. Tracy 1937-6-28 15370 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  RSA46915  Prunus emarginata Doris K. Kildale 1926-9-5 2620 Humboldt On trail between Goat Camp and Red Peak, Lassack's Peaks 1677 Comment
  RSA454167  Prunus subcordata Anstruther Davidson 1927-05 s.n. Humboldt [Unspecified] Comment
  JEPS24541  Pseudognaphalium ramosissimum Dick Waring 1960-8-1 Humboldt in disturbed area about 2 mi n Weott; Avenue of the Giants Comment
  HSC98638  Pseudotsuga menziesii Cara Witte 2008-7-11 884 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  RSA1658  Pseudotsuga menziesii C. B. Wolf 1930-10-29 sn Humboldt Old Coast Rd. 7 mi S of Honeydew Post Office. 305 Comment
  HSC54576  Pseudotsuga menziesii var. menziesii Overton, Butler 1979-7-24 9612 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  HSC32362  Psilocarphus tenellus D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5710 Humboldt McKeown Ranch, N of Dinsmore Comment
  UC165835  Psilocarphus tenellus Joseph P. Tracy 1911-7-5 3330 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of the Trinity River 152 Comment
  RSA167319  Psilocarphus tenellus var. tenellus Joseph P. Tracy 1942-7-26 17293 Humboldt Valley of South Yager Creek, at an old millsite one mile north of Redwood House. 610 Comment
  HSC54600  Pteridium aquilinum var. pubescens Walter Overton, Butler 1979-7-24 9682 Humboldt Near Friday camp, close to the town of Willow Creek 1250 Comment
  HSC55135  Pteridium aquilinum var. pubescens G. L. Clifton, Griswold 1979-8-1 11978 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UC32692  Pyrola asarifolia Joseph P. Tracy 1898-7-1 248 Humboldt Kneeland Prairie 1066 Comment
  HSC45427  Pyrola crypta Thomas W. Nelson, Jane Nelson 1977-6-19 3502 Humboldt Along ridge N of pond above Alder Springs 1585 Comment
  HSC41292  Pyrola dentata Brad Klipfel 1974-7-27 491 Humboldt Horse Mtn. Comment
  HSC98509  Pyrola minor Cara Witte 2008-7-25 939 Humboldt Forest Service Road 5N10. Approximately 1.5 miles north of intersection with Forest Service Road 5N10C. 1319 Comment
  UC32690  Pyrola picta Chestnut and Drew 1888-7-21 Humboldt South Fork Mts. Comment
  HSC98038  Pyrola picta Cara Witte 2007-7-17 532 Humboldt National Forest 1. 2 miles south from intersection with 5N27. 1456 Comment
  NY42917  Pyrus malus J. B. Walker 1995-4-26 1386 Humboldt Six Rivers National Forest, Hwy 36, 2km W of Cobbs 800 Comment
  UC54680  Quercus chrysolepis P. E. Goddard 1901-7-13 58 Humboldt Hupa Comment
  UC5582  Quercus chrysolepis Joseph Burtt Davy and Walter C. Blasdale 1899-5 5458 Humboldt near Elk Prairie Comment
  CAS-BOT-BC94314  Quercus garryana Doris K. Kildale 1926-6-27 2200 Humboldt Laribee Valley 701 Comment
  CAS-BOT-BC62728  Quercus garryana var. breweri Doris K. Kildale 1926-8-22 2573 Humboldt Bald hills, near Tomlinson's 716 Comment
  HSC98847  Quercus vacciniifolia Cara Witte 2008-7-11 867 Humboldt Horse Mountain Botanical Area. National Forest 1. 1/2 mile west of intersection with Forest Service Roads 6N38 and 6N36. 1426 Comment
  HSC98340  Quercus wislizeni Jimerson, J. Pageau 1979-6-12 540 Humboldt Near Hopkins Butte, close to the town of Orleans 1036 Comment
  UC1196505  Quercus wislizeni Joseph P. Tracy 1925-8-23 7246 Humboldt North Dobbyn Creek Northern Coast Ranges 152 Comment
  UC160948  Ranunculus alismifolius var. alismellus Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5767 Humboldt Trinity Summit Comment
  JEPS5885  Ranunculus bulbosus Joseph P. Tracy 1938-7-15 16080 Humboldt near Grizzly Bluff; Eel River Valley 15 Comment
  HSC26334  Ranunculus californicus var. californicus Thomas W. Nelson 1971-4-12 376 Humboldt S spit of Humboldt Bay. Comment
  UC184237  Ranunculus flammula Joseph P. Tracy 1912-7-21 3786 Humboldt Alton Northern Coast Region 30 Comment
  HSC79336  Ranunculus occidentalis D. H. Norris 1970-5-20 12178 Humboldt Crest of Big Hill Rd. E of Hoopa Comment
  JEPS55004  Ranunculus occidentalis Lincoln Constance 1934-5-24 645 Humboldt Bull Creek Region South Fork Eel River 121 Comment
  UC1196231  Ranunculus occidentalis Joseph P. Tracy 1934-4-8 13173 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  UC1222571  Ranunculus occidentalis Joseph P. Tracy 1951-5-6 19396 Humboldt flat by old Strong's District School House (5 mi e of Carlotta) 60 Comment
  HSC76583  Ranunculus occidentalis var. occidentalis Denis Kearns 1981-7-23 408 Humboldt Near Whiteys Peak. 1524 Comment
  SDSU10120  Ranunculus orthorhynchus Leslie Hickson 1990-4-15 15 IV90A Humboldt 38 Apple Valley Lane in the northwest corner of the pasture. Comment
  UC9487  Ranunculus orthorhynchus var. orthorhynchus Harley P. Chandler May 1901 1110 Humboldt Arcata North Coast Ranges, Humboldt Bay 30 Comment
  HSC69865  Ranunculus orthorhynchus var. platyphyllus Thomas W. Nelson 1978-5-28 4089 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  HSC99489  Ranunculus repens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 148 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
  RSA85302  Ranunculus repens F. W. Peirson 1926-7-12 12 Humboldt Orick Comment
  HSC18203  Ranunculus repens var. repens Richard Steele 1962-5-1 20 Humboldt Arcata, 0.5 mi. W of HSC campus 15 Comment
  HSC56305  Ranunculus uncinatus Overton, Butler 1979-8-2 12613 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  JEPS53819  Raphanus sativus Lincoln Constance 1934-5-27 707 Humboldt South Fork Eel River, s end of Dyerville Bridge South Fork Eel River; Bull Creek Region, South Fork Eel River 45 Comment
  RSA7790  Rhamnus californica Carl B. Wolf 1927-8-30 1249 Humboldt 3 miles S of Thorn3 miles S of Tom's Place Comment
  POM126158  Rhamnus californica subsp. occidentalis Joseph P. Tracy 1921-10-2 5963 Humboldt Kneeland Prairie. Comment
  RSA2937  Rhamnus californica subsp. occidentalis Carl B. Wolf 1931-8-30 2377 Humboldt On grade from Willow Creek to Blue Rahe, 9 miles above Willow Creek (Lord Ellis Road). 305 Comment
  POM257952  Rhamnus purshiana H. E. Parks, S. T. Parks 1935-05 5541 Humboldt Spruce Cove, Trinidad. 64 Comment
  UC22135  Rhododendron occidentale Harley P. Chandler June, 1901 1448 Humboldt Klamath River; North Coast Ranges, Klamath River 457 Comment
  CAS-BOT-BC200386  Rhododendron occidentale var. paludosum Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC69697  Rhododendron occidentale var. paludosum R. Kalal 1980-6-8 16 Humboldt Azalea State Reserve 52 Comment
  HSC7883  Rhododendron occidentale var. paludosum J. Pursell 1964-10-6 1062 Humboldt Big Lagoon Bog Comment
  UC1198921  Ribes binominatum Joseph P. Tracy 1942-6-23 17251 Humboldt near Box Camp; Trinity Summit 1584 Comment
  UC1222379  Ribes binominatum Joseph P. Tracy 1950-7-1 18949 Humboldt Cold Springs Grouse Mountain 1432 Comment
  CAS-BOT-BC92880  Ribes bracteosum W. R. Dudley 1899-6-21 s.n. Humboldt Engelwood Brook-Eel River. Comment
  HSC75511  Ribes lacustre J. O. Sawyer, R. J. Cole 1977-7-3 3022 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  HSC99361  Ribes lacustre K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 10 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS49357  Ribes lacustre W. L. Jepson 1902-7-15 2030 Humboldt Mud Spring to Trinity Summit 1524 Comment
  CAS-BOT-BC176805  Ribes laxiflorum Alice Eastwood 1907-4-22 45 Humboldt Near [Orricks] Orick Comment
  CAS-BOT-BC176808  Ribes laxiflorum Doris K. Kildale 1926-3-24 1681 Humboldt Ryan Slough - on road to Occidental Ranch Comment
  UC1198906  Ribes laxiflorum Joseph P. Tracy 1918-4-28 4890 Humboldt Northern Coast Ranges, Eureka, Ryan's Slough Ryan's Slough; Northern Coast Ranges, Eureka, Ryan's Slough 0 Comment
Read comments
Jan 25 2012
  UC1198907  Ribes laxiflorum J. P. Tracy 1901-6-10 1122 Humboldt immediate vicinity Eureka 0 Comment
  HSC74138  Ribes lobbii M. A. Baker 1980-7-23 3175 Humboldt Near Orleans Mtn. 1859 Comment
  JEPS49356  Ribes lobbii W. L. Jepson 1902-7-16 2038 Humboldt Trinity Summit 2133 Comment
  UC1541330  Ribes lobbii J. P. Tracy July 1933 Humboldt Horse Mountain Comment
  HSC20313  Ribes menziesii D. E. Anderson 1962-3-31 1960 Humboldt Old Hwy. 101, E side of Freshwater Lagoon Comment
  UC1541331  Ribes menziesii Harold E. Parks April 1933 4402 Humboldt vicinity Trinidad (type locality) Comment
  RSA0024751  Ribes roezlii S. S. Tillett 1956-7-6 626 Humboldt 12.5 miles from Orleans, along Bar Shanty Road. 1174 Comment
  BLMAR653  Ribes roezlii var. cruentum Jennifer Wheeler 2012-5-9 653 Humboldt Lacks Creek, Pine Ridge Road 1097 Comment
  UC902081  Ribes roezlii var. cruentum Joseph P. Tracy 1949-7-19 18378 Humboldt Grouse Mountain 1280 Comment
  UC902104  Ribes roezlii var. cruentum Joseph P. Tracy 1942-4-4 17069 Humboldt e North Fork Mad River (near summit of Trinity Highway); Bald Mountain 640 Comment
  CAS-BOT-BC212521  Ribes sanguineum Harley P. Chandler 1901-6-1 1287 Humboldt Hupa Indian Reservation 1097 Comment
  RSA0019527  Ribes sanguineum John H. Thomas 1949-6-13 914 Humboldt Along trail between Le Perron Flat and Whiteys Peak. Six Rivers National Forest. East of town of Orleans. 1372 Comment
  HSC13252  Ribes sanguineum var. glutinosum D. E. Anderson 1962-1-12 1907 Humboldt Along road to Lanphere's Comment
  UC1127604 Image available Ribes sanguineum var. glutinosum R. Stahelin 1933-5-15 Humboldt Freshwater Eureka Quadrangle Comment
  UC902086 Image available Ribes sanguineum var. glutinosum Joseph P. Tracy 1949-4-10 18281 Humboldt North Coast Ranges, Redwood Creek, at Berry's Redwood Creek; North Coast Ranges, Redwood Creek 365 Comment
  HSC55998  Ribes viscosissimum Overton, Butler 1979-7-31 11441 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC56193  Ribes viscosissimum Gilbert Muth 1979-8-1 12134 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  JEPS49203  Ribes viscosissimum W. L. Jepson 1902-7-16 2037 Humboldt Trinity Summit 2133 Comment
Read comments
Jan 17 2008
  UC673061  Robinia pseudoacacia Joseph P. Tracy 1934-7-1 13277 Humboldt Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC13753  Romanzoffia californica Lincoln Constance, R. C. Rollins 1942-5-11 2870 Humboldt 3 mi. E of E Fork of Willow Creek Comment
  HSC35152  Romanzoffia tracyi Gary S. Lester 1975-4-4 605 Humboldt About 1 mi. N of Elk Head near Trinindad 15 Comment
  CAS-BOT-BC74506  Rorippa curvisiliqua Doris K. Kildale 1926-7-18 2391 Humboldt Orick. Comment
  UCD115322  Rorippa palustris Joseph P. Tracy; H. E. Parks 1931-5-17 9425 Humboldt Trinity River near Willow Creek. 152 Comment
  JEPS47243  Rosa Lincoln Constance 1934-5-26 654 Humboldt S. end of Dyerville Bridge South Fork Eel River, Bull Creek Region (s bank of river) Comment
  UC492163  Rosa Joseph P. Tracy 1930-7-23 9138 Humboldt Horse Mountain Northern Coast Ranges (along streamlet) 1524 Comment
  HSC19615  Rosa californica Lincoln Constance 1934-5-26 654 Humboldt South Fork Eel River, S end of Dyerville Bridge. Comment
  POM161058  Rosa californica Joseph P. Tracy 1923-9-16 6550 Humboldt Trinity River Valley, Near the south fork Comment
  UC667030  Rosa gymnocarpa Joseph P. Tracy 1936-8-7 15107 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  CAS-BOT-BC148222  Rosa spithamea Volney Rattan 1883-6-1 s.n. Humboldt Trinity River, Coast Mts. North of San Francisco Bay Comment
  HSC12760  Rubus armeniacus M. J. Athey 13 Oct [year missing] 15 Humboldt Trinidad Comment
  UC709448  Rubus lasiococcus Joseph P. Tracy 1941-8-24 17042 Humboldt near McKay camp (South Fork Mountain); , near McKay camp 1676 Comment
  JEPS47690  Rubus leucodermis Lincoln Constance 1934-5-24 635 Humboldt bordering lower Look Prairie on e side , Bull Creek Region (South Fork Eel River) 121 Comment
  RSA89562  Rubus leucodermis Philip A. Munz 1954-7-23 19862 Humboldt About 6 miles E of Dinsmore's. 762 Comment
  HSC104043  Rubus parviflorus C. Reynolds 2015-4-25 37 Humboldt At Redwood Creek Trailhead, off Bald Hills Road 20 Comment
  HSC19656  Rubus parviflorus Lincoln Constance 1934-5-31 756 Humboldt S Fork of the Eel River, Bull Creek Flat, along Bull Creek, W boundary of park to Grasshopper Peak, N side of creek Comment
  HSC97656  Rubus parviflorus Kevin Thomas 2004-4-26 17 Humboldt Jacoby Creek Rd. Comment
  HSC19682  Rubus spectabilis D. B. Bader 1963-3-1 49 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101., E bank of S end Comment
  JEPS46230  Rubus spectabilis W. L. Jepson 1934-5-7 16708 Humboldt near Big Tree footbridge (Bull Creek); Bull Creek Comment
  HSC79483  Rubus ursinus Kenneth Clark 1980-3-24 547 Humboldt Shelter Cove, N fork of Deadman's Gulch 69 Comment
  UCD17618  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 046 Humboldt California. Humboldt County: 6.6 miles north of Ettersburg on road to Honeydew. Comment
  HSC101448  Rubus ursinus subsp. macropetalus Cara M. Witte 2008-6-27 761 Humboldt Approximately 1.5 miles south of intersection of National Forest 1 and 5N04 1546 Comment
  HSC56448  Rudbeckia klamathensis Griswold, Butler 1979-7-12 7201 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1223049  Rudbeckia occidentalis Joseph P. Tracy 1947-8-24 17886 Humboldt meadow at Box Camp; Trinity Summit 1463 Comment
  UC1541398  Rumex acetosella W. K. Parks Jun 1932 Humboldt vicinity Trinidad Comment
  HSC97647  Rumex acetosella Kevin Thomas 2004-4-26 18 Humboldt Stewart Ave Comment
  RSA256728  Rumex acetosella Linda M. Barker 1974-5-11 171 Humboldt Redwood National Park, Bald Hills road. 549 Comment
  HSC62855  Rumex crassus J. M. DiTomaso 1979-5-20 1051 Humboldt Sand at Big Lagoon Park, 8 mi. N of Trinidad Comment
  HSC60366  Rumex crispus Terry Roth 1979-5-26 87 Humboldt Near jct. of Sunset Ave. and H St., Arcata Comment
  CAS-BOT-BC434096  Rumex transitorius L. R. Abrams 1918-6-16 7165 Humboldt Willow Creek Comment
  HSC4064  Sagina maxima subsp. crassicaulis D. E. Anderson 1961-9-13 1813 Humboldt Trinidad Beach Comment
  HSC35624  Salicornia depressa Thomas W. Nelson, James Nelson 1975-8-5 2137 Humboldt Along S spit of Humboldt Bay ca. 1 mi. N of Table Bluff. Comment
  HSC90393  Salicornia depressa Jean Hanson 1980-8-28 113 Humboldt Indian (Gunther) Island in Humboldt Bay, Eureka, across from Coast Guard Station within 30 ft. of high tide line Comment
  JEPS93176  Salicornia virginica Margriet Wetherwax and Kevin Downing 1993-8-9 2456 Humboldt just n of Eureka (on e side of Humboldt Bay, s side of Eureka Slough, near Bayside Road and Myrtle, just past Pigeon Point); Humboldt Bay, Eureka Slough 5 Comment
  JEPS93177  Salicornia virginica Margriet Wetherwax and Kevin Downing 1993-8-9 2456 Humboldt just n of Eureka (on e side of Humboldt Bay, s side of Eureka Slough, near Bayside Road and Myrtle, just past Pigeon Point); Humboldt Bay, Eureka Slough 5 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
  UC1196669  Salix eastwoodiae Joseph P. Tracy 1935-7-26 14266 Humboldt meadows at Water Dog Lake; Trinity Summit 1828 Comment
  CAS-BOT-BC103808  Salix exigua W. R. Dudley 1899-6-21 s.n. Humboldt Near forks of Eel River by Dyerville Comment
  UC481312  Salix exigua var. hindsiana Harold E. Parks and Joseph P. Tracy 1931-5-17 975 Humboldt mouth of Willow Creek at Trinity R. 150 Comment
  UC519381  Salix exigua var. hindsiana Joseph P. Tracy 1933-5-19 12203 Humboldt Alton to Fortuna; Northern Coast Region, Eel R. 15 Comment
  UC55406  Salix exigua var. hindsiana Harley P. Chandler June, 1901 1482 Humboldt Klamath R. North Coast Ranges, Klamath R. 365 Comment
  CAS-BOT-BC104107  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01336 Humboldt above Trinity River, 1 mile below bridge on Trinity Highway 152 Comment
  CAS-BOT-BC107759  Salix hookeriana Harold E. Parks 1931-5-28 01000 Humboldt Little River Lagoon Comment
  CHSC9652  Salix hookeriana E. L. Smith 1971-8-18 1023 Humboldt At Manila ca. 4 mi sw of Arcata, on w side of Humboldt Bay opposite of Eureka. Comment
  CHSC96715  Salix hookeriana Gordon Leppig 2005-4-8 2211 Humboldt Humboldt Bay Dunes and Wetlands. Eureka, swamp at west end of W. Hawthorne St. NAD 27 UTM Zone 10, 4515862 N, 400315 E. 3 Comment
  HSC19952  Salix hookeriana H. E. Parks 1931-5-12 952 Humboldt Samoa, Humboldt Bay 0 Comment
  HSC33076  Salix hookeriana Thomas W. Nelson, Jim Ackerman 1974-5-14 1265 Humboldt Beside old Samoa-Crannell railroad bed adjacent to the Mad River Slough N of Emerson Mill Comment
  JEPS12947  Salix hookeriana Joseph P. Tracy 1931-10-18 9742 Humboldt Camp Grant Northern Coast Ranges, Eel River 60 Comment
  RSA342501  Salix hookeriana Robert F. Thorne, Percy C. Everett 1965-8-7 35230 -c Humboldt Big Lagoon. 3 Comment
  UC470440  Salix hookeriana Joseph P. Tracy 1931-9-20 9685 Humboldt Trinidad Northern Coast Region 60 Comment
  UC490454  Salix hookeriana Joseph P. Tracy 1932-5-10 9938 Humboldt Bear R. at Capetown; Northern Coast Ranges, , Bear R. 30 Comment
  UC512003  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1231 Humboldt 1 1/2 mi e Alton (floodplain of Van Duzen R.) 30 Comment
  UC512116  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1201 Humboldt 4 1/2 mi s Trinidad; Little River Lagoon Comment
  UC518898  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 4 Humboldt around Eureka Comment
  POM219699  Salix hookeriana var. tomentosa H. E. Parks 1931-5-12 955 Humboldt Samoa. Humboldt Bay. Near sea level. 0 Comment
  JEPS14762  Salix jepsonii Joseph P. Tracy 1932-7-18 10724 Humboldt head of Brett Hole (Trinity Summit, Klamath Mts.); Klamath Mts., Trinity Summit 1828 Comment
  UC1173614  Salix laevigata Joseph P. Tracy 1935-6-22 13960 Humboldt mouth of Larrabee Creek (on Eel River); Eel River 45 Comment
  UC481801  Salix laevigata Mrs. H. P. Bracelin 1931-5-1 267 Humboldt between Miranda and Meyers (Sylvandale Station, S. Fork Eel R.); Sylvandale Station, S. Fork Eel R. Comment
  UC517961  Salix laevigata M. S. Jussel 1931-5-1 Humboldt Sylvandale Comment
  UC1196577  Salix lasiandra subsp. lasiandra J. P. Tracy 1901-3-31 995 Humboldt immediate vicinity Eureka 0 Comment
  UC512108  Salix lasiandra subsp. lasiandra Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1206 Humboldt 4 1/2 mi. s. Trinidad (Little R. Lagoon); Little R. Lagoon Comment
  UC1196576  Salix lasiandra var. lasiandra Joseph P. Tracy 1941-3-26 16816 Humboldt opposite mouth of Willow Creek Lack Pond; Trinity R. Valley 152 Comment
  UCD111578  Salix lasiandra var. lasiandra Joseph P. Tracy 1947-8-24 17896 Humboldt Trinity Summit, meadow at Box Camp. 1463 Comment
  CAS-BOT-BC107589  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1318 Humboldt On banks of Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  CAS-BOT-BC107591  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1317 Humboldt On banks of Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  CAS-BOT-BC107610  Salix lasiolepis Joseph P. Tracy; Harold E. Parks; Carleton R. Ball 1932-5-13 1253 Humboldt On gravelly floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CHSC96698  Salix lasiolepis Gordon Leppig 1999-4-15 1119 Humboldt Big Lagoon County Park, Big Lagoon Bog. On western edge of fen. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  HSC20017  Salix lasiolepis J. P. Tracy 1933-4-9 10968 Humboldt Bridgeville, along Van Duzen River 229 Comment
  HSC96360  Salix lasiolepis Gordon Leppig 1999-7-9 1188 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  JEPS12946  Salix lasiolepis Joseph P. Tracy 1931-10-3 9707 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  LA208778  Salix lasiolepis Joseph P. Tracy; 1933-4-2 10959 Humboldt Berry's Mountain; on Trinity Hwy; E of Redwood Creek 761 Comment
  UC481314  Salix lasiolepis Harold E. Parks and Joseph P. Tracy 1931-5-17 976 Humboldt mouth of Willow Creek at Trinity River 150 Comment
  UC481337  Salix lasiolepis Harold E. Parks 1931-10-15 1076 Humboldt Bishop Pine Lodge Trinidad; , Bishop Pine Lodge 75 Comment
  UC490548  Salix lasiolepis Joseph P. Tracy 1932-4-24 9805 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC504021  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1254 Humboldt 2 mi E of Redwood Highway ( Mad River at Engelhart gravel pit, above Blue Lake) Comment
  UC504026  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1319 Humboldt Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  UC504030  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1321 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  UC506342  Salix lasiolepis Joseph P. Tracy 1933-4-9 10966 Humboldt Bridgeville, along Van Duzen River 228 Comment
  UC506344  Salix lasiolepis Joseph P. Tracy 1933-3-19 10932 Humboldt Blue Slide, on Van Duzen River 228 Comment
  UC54677  Salix lasiolepis J. P. Tracy 1901-4-7 1011 Humboldt Immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC107403  Salix lasiolepis var. lasiolepis Doris K. Kildale 1928-4-29 5958 Humboldt Redwood Creek at Berry's 289 Comment
  SBBG57828  Salix lucida subsp. lasiandra H. E. Parks, J. P. Tracy 1931-5-17 966 Humboldt banks of Willow Crk Comment
  CAS-BOT-BC125611  Salix melanopsis Harold E. Parks 1931-5-14 0956 a Humboldt Van Duzen River above Bridgeville 300 Comment
  CAS-BOT-BC125622  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt East of Redwood Highway, 6 km. south of Alton 20 Comment
  CAS-BOT-BC125627  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 0972 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  HSC20032  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt E of Redwood Hwy., 6 km S of Alton 20 Comment
  JEPS14849  Salix melanopsis Lincoln Constance 1934-5-27 689 Humboldt s end of Dyerville Bridge (S. Fork Eel River); Bull Creek Region 45 Comment
  LA208879  Salix melanopsis Mrs. H. P. Bracelin; 1931-5-2 283 Humboldt E of Redwood Hwy.; 6 km. S of Alton 20.0 Comment
  POM218958  Salix melanopsis H. P. Bracelin 1931-5-2 284 Humboldt E of Redwood Hwy, 6km S of Alton. 20 Comment
  POM219685  Salix melanopsis H. E. Parks 1931-5-14 965 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  SBBG57922  Salix melanopsis H. E. Parks 1931-5-14 960 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  SD909  Salix melanopsis Harold E. Parks 1931-5-14 960 Humboldt Van Duzen River between Alton and Carlotta 14 Comment
  UC1196564  Salix melanopsis Joseph P. Tracy 1931-5-3 9347 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  UC1196568  Salix melanopsis Joseph P. Tracy 1932-5-1 9848 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R. 30 Comment
  UC212983  Salix melanopsis Joseph P. Tracy 1920-5-31 5334 Humboldt mouth of Yager Creek; Northern Coast Region, Yager Creek 30 Comment
  UC469454  Salix melanopsis Joseph P. Tracy 1931-9-7 9634 Humboldt Trinity R. Valley at Willow Creek Bridge; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC481267  Salix melanopsis Harold E. Parks 1931-5-28 1025 Humboldt Little River Lagoon Comment
  UC481826  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt 6 km. s. Alton (e. of Redwood Hwy.) 20 Comment
  UC512019  Salix melanopsis C. R. Ball, H. E. Parks, and J. P. Tracy 1932-5-17 1339 Humboldt pond at Willow Creek (Graham Ranch) near junction with Trinity R.; Willow Creek 152 Comment
  CAS-BOT-BC129165  Salix scouleriana Harold E. Parks 1933-1-1 1341 Humboldt Spruce Cove, Highway 101, Trinidad 64 Comment
  CAS-BOT-BC129168  Salix scouleriana Joseph P. Tracy 1932-7-13 10507 Humboldt Open ground at Corral Prairie 1524 Comment
  HSC20091  Salix scouleriana H. E. Parks Feb 1933 1151 Humboldt Spruce Cove, Trinidad Comment
  JEPS38418  Salix scouleriana W. L. Jepson 1932-7-27 16426 Humboldt Bull Creek 106 Comment
  UC519354  Salix scouleriana Joseph P. Tracy 1933-7-11 12706 Humboldt Grouse Mt.; North Coast Ranges, Grouse Mt. 1524 Comment
  CAS-BOT-BC128959  Salix sitchensis Joseph P. Tracy 1933-7-16 12773 Humboldt South Fork Mountain; in wet meadow at McKay Camp. 1676 Comment
  CAS-BOT-BC129000  Salix sitchensis Harold E. Parks 1931-5-28 1026 Humboldt Little River Lagoon, at sea level. Comment
  UC1600860  Salix sitchensis Joseph P. Tracy 1933-10-8 13086 Humboldt Van Duzen R. Blue Slide; Northern Coast Ranges, , Blue Slide 91 Comment
  UC303028  Salix sitchensis Joseph P. Tracy 1926-2-21 7359 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC481385  Salix sitchensis Harold E. Parks 1931-3-24 910 Humboldt Trinidad 90 Comment
  UC504018  Salix tracyi C. R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1244 Humboldt Van Duzen River at Blue Slide 91 Comment
  UCLA69890  Salvia dorrii var. pilosa unknown Humboldt Harris Spring road 1828 Comment
  HSC47490  Sambucus racemosa var. racemosa Sheila Logan 1978-4-9 13 Humboldt Fieldbrook, 0.5 mi. E of McKinleyville on Murray Rd. 122 Comment
  SEINET3103511  Sambucus racemosa var. racemosa Steve Selva, Rodger Jensen 1974-8-28 99 Humboldt Redwood forest behind Humboldt State University, Arcata. Comment
  UCSB15630  Sambucus racemosa var. racemosa 1962-6-8 Humboldt Along U.S. Highway 101, 5 miles south of Orick 30 Comment
  HSC71058  Sanicula bipinnatifida Thomas W. Nelson, Jane P. Nelson 1977-5-30 3392 Humboldt McKeown Ranch. Along road to Anderson's Ford. 854 Comment
  HSC82103  Sanicula crassicaulis Thomas W. Nelson, Jane P. Nelson 1980-5-25 5264 Humboldt Along road from Dinsmore to Anderson Crossing- McKeown Ranch Rd.- 0.5 mi. NW of McKeown house 823 Comment
  UC642282  Sanicula crassicaulis Joseph P. Tracy 1927-5-8 7968 Humboldt Phillipsville, South Fork Eel River South Fork Eel River; Phillipsville, South Fork Eel River 121 Comment
  HSC55755  Sanicula graveolens G. L. Clifton, Terry Griswold 1979-7-26 10289 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UC1197095  Sanicula graveolens Joseph P. Tracy 1926-5-2 7448 Humboldt near Ruby Creek (Northern Coast Ranges, Willow Creek Canyon); Northern Coast Ranges, Willow Creek Canyon 609 Comment
  UC767191  Sanicula tracyi Joseph P. Tracy 1947-6-25 17717 Humboldt opposite Buck Mountain (along Van Duzen River, Dinsmore's); Van Duzen River, Dinsmore's 762 Comment
  UC642303  Sanicula tuberosa Joseph P. Tracy 1927-7-12 8156 Humboldt Northern Coast Ranges, Horse Mountain Horse Mountain; Northern Coast Ranges, Horse Mountain 1219 Comment
  UC577374  Satureja douglasii Joseph P. Tracy 1923-6-20 6315 Humboldt White Thorn Valley 304 Comment
  UC1198883  Saxifraga marshallii Joseph P. Tracy 1935-5-12 13800 Humboldt at East Fork Willow Creek, Willow Creek Canyon, along Trinity Highway Willow Creek; Willow Creek Canyon, East Fork Willow Creek 457 Comment
  RSA43848  Saxifragopsis fragarioides H. M. Pollard 1947-9-1 s.n. Humboldt Peak of Somes Mountain, near Orleans 1524 Comment
  UC642323  Scandix pecten-veneris Joseph P. Tracy 1935-5-25 13872 Humboldt Fort Seward 106 Comment
  CHSC69506  Schoenoplectus pungens Vernon Oswald; Lowell Ahart 1997-9-4 8848 Humboldt North Coast Region. Big Lagoon County Park at the southwest edge of Big Lagoon. Meadowy area bordering a small drainage entering the lagoon at the boat ramp. 3 Comment
  RSA246880  Schoenoplectus pungens Robert F. Thorne, Percy C. Everett 1965-8-9 35332 Humboldt Clam Beach County Park. 3 Comment
  HSC48382  Scirpus microcarpus D. H. Norris May 1970 12465 Humboldt Gold Bluff Beach, Prairie Creek Redwoods State Park Comment
  HSC7462  Scirpus microcarpus J. R. Kahl 1962-5-4 27 Humboldt 3 mi. S of Trinidad along old Hwy. 101 Comment
  RSA18606  Scirpus microcarpus Carl B. Wolf 1937-9-11 9324 Humboldt Redwood Highway, 3 miles N of Orick at Davison s Ranch on Prairie Creek. 61 Comment
  UC1222484  Scirpus microcarpus Joseph P. Tracy 1949-9-1 18533 Humboldt Dusky's Spring Trinity River Valley, at Willow Creek, at Dusky's Spring (Willow Creek, Trinity River Valley) 152 Comment
  JEPS95121  Scirpus pungens Vernon Oswald and Lowell Ahart 1997-9-4 8848 Humboldt Big Lagoon County Park, at sw edge of Big Lagoon Big Lagoon; North Coast Region, Big Lagoon County Park, Big Lagoon 3 Comment
  CHSC2305  Scoliopus bigelovii V. Holt 1933-4-10 Humboldt Comment
  SEINET12815835  Scoliopus bigelovii John D. Freeman, Ruth Freeman 1967-1 583 Humboldt Just west of California Hwy. 36 and just north of Carlotta. 52 Comment
  SEINET3991333  Scoliopus bigelovii Unknown 1922-5-14 6049 Humboldt Kneeland Prairie 762 Comment
  UCD139810  Scoliopus bigelovii R. N. Raynor 1935-5-22 s.n. Humboldt Ford Seward. Comment
  JEPS62101  Scoliopus bigelovii Lincoln Constance 1934-6-8 836 Humboldt Cow Creek fire-trail from Bull Creek rd. n. over the divide into the headwaters of Bear Creek; Bull Creek Region, S. Fork Eel R., Cow Creek fire-trail Comment
  BLMAR679  Scrophularia californica Jennifer Wheeler 2013-7-17 679 Humboldt King range, Mattole Beach parking lot 6 Comment
  HSC21127  Scrophularia californica R. I. Bonn 1965-5-9 44 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  UC1713596  Scutellaria antirrhinoides Harold E. Parks and Joseph P. Tracy 1934-6-27 Humboldt Grouse Mountain 1432 Comment
  UC416677  Scutellaria antirrhinoides M. H. Manning 1901-5-26 93 Humboldt near Hupa Comment
  UC1222865  Scutellaria antirrhinoides Joseph P. Tracy 1950-6-15 18788 Humboldt 7 mi n of Harris (Mail Ridge, Jenk's Ranch); Mail Ridge, Jenk's Ranch Comment
  UC577340  Scutellaria californica Joseph P. Tracy 1937-7-11 15423 Humboldt vicinity of Garberville 121 Comment
  UC154265  Scutellaria tuberosa Mrs. M. H. Manning June, 1901 94 Humboldt Hupa Valley Comment
  UC249516  Scutellaria tuberosa Joseph P. Tracy 1922-4-30 6005 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC99534  Sedum laxum subsp. flavidum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 199 Humboldt Near North Trinity Mtn, along trail to Water Dog Lakes, Six Rivers National Forest. 1829 Comment
  UC1225752  Sedum radiatum Joseph P. Tracy 1948-5-31 18000 Humboldt Harris Harris (on rock ledge in shade) 762 Comment
  JEPS48046  Sedum radiatum W. L. Jepson 1902-6-20 1890 Humboldt Ft. Seward Ranch Ridge Ft. Seward Ranch ridge, Mail Ridge (= Mail Ridge, Rocky points) 1066 Comment
  UC205179  Sedum radiatum Charlotte M. Wilder 1912-10-1 Humboldt Upper Van Duzen River, along trail Upper Van Duzen River 914 Comment
  CAS-BOT-BC63826  Sedum spathulifolium Elizabeth Parsons Hawyer 1915-6-1 s.n. Humboldt Carlotta Comment
  UC2046852  Sedum spathulifolium R. E. Brainerd with N. Otting 2012-6-9 2042 Humboldt Humboldt County: Pine Ridge Road, headwaters of Lacks Creek drainage; ca. 17.5 air miles east-northeast of Arcata. Comment
  RSA0074767  Sedum spathulifolium I. L. Wiggins 1932-6-18 5878 Humboldt Mouth of Little River. Comment
  UC11264  Sedum spathulifolium C. C. Marshall 1888-1 Humboldt 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
  HSC65325  Sedum spathulifolium var. spathulifolium J. P. Smith 1973-5-26 6826 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC48309  Sedum spathulifolium var. spathulifolium R. Sutherland 1978-4-22 1 .22478 Humboldt Along King's Crest Trail 1098 Comment
  UC302053  Selaginella wallacei Joseph P. Tracy 1912-7-26 3850 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  JEPS37086  Senecio glomeratus Lincoln Constance 1934-6-25 926 Humboldt 4 mi n Dyerville (and <4 mi n?> of n boundary of Humboldt Redwood Park, on Redwood Highway); South Fork Eel River, Bull Creek Region, Englewood Comment
  HSC57618  Senecio integerrimus var. major G. L. Clifton, Griswold 1979-7-25 10743 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC6120  Senecio integerrimus var. major D. E. Anderson 1965-5-1 3571 Humboldt Along Bluff Creek road about 2.5 mi. from its junction with Hwy. 96 Comment
  UC1223157  Senecio integerrimus var. major Joseph P. Tracy 1950-6-15 18793 Humboldt 7 mi n Harris (Jenk's Ranch); Mail Ridge Comment
  JEPS37087  Senecio sylvaticus Lincoln Constance 1934-6-2 790 Humboldt Bull Cr. road to mouth of Bull Creek (and up the creek); South Fork Eel River, Bull Creek Region Comment
  SEINET11802649  Senecio sylvaticus J. P. Tracy 1949-1 18467 Humboldt S of crossing of powerline,E of headwaters of Redwood Creek, Kinsey Ridge, S from Grouse Mt., 2-6 mi 1280 Comment
  HSC102003  Senecio triangularis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 904 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC67893  Senecio vulgaris J. P. Smith 1973-5-26 6840 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC963844  Senecio vulgaris H. E. Parks and S. T. Parks June 1943 24234 Humboldt Spruce Cove North Coast Ranges, , Spruce Cove (Trinidad) 60 Comment
  SD33  Sequoia sempervirens Charlotte M. Wilder 1929-1 Humboldt Carlotta Comment
  UC1196922  Sequoia sempervirens J. P. Tracy 1901-1-1 980 Humboldt immediate vicinity of Eureka 0 Comment
  POM182755  Sequoia sempervirens A. L. Bolton 1904-11-12 s.n. Humboldt Willits Comment
  UC205153  Sericocarpus oregonensis subsp. oregonensis Joseph P. Tracy 1919-9-14 5214 Humboldt near mouth of Willow Creek (valley of Trinity River); Trinity River 152 Comment
  CDA13777  Setaria parviflora P. Haggard 1997-12-12 s.n. Humboldt North Coast Ranges; East of Arcata on North Bank Rd. above Mad River immed. E of Azalea Reserve. Stand approx. 25' in length, growing in recently disturbed area. Perennial. 0 Comment
  HSC12661  Sherardia arvensis J. F. Knezevich 1968-5-21 444 Humboldt 20 mi. E of Arcata on Hwy. 299 at Lord Ellis Summit Comment
  HSC40235  Sherardia arvensis J. P. Smith, J. O. Sawyer 1976-5-2 8618 Humboldt 1.5 mi. N of Willow Creek on Hwy. 96 61 Comment
  RSA46485  Sherardia arvensis Doris K. Kildale 1925-6-7 691 Humboldt [Unspecified] Comment
  HSC96275  Sidalcea malachroides Gordon Leppig 2002-5-22 1710 Humboldt Van Duzen River Watershed, Redwood House Rd. Simpson Timber Co. 540 Comment
  UC18692  Sidalcea malachroides J. Burtt Davy 1899-6-13 5482 Humboldt Englewood Prairie North Coast Ranges, Englewood Prairie Comment
  UC668138  Sidalcea malachroides Joseph P. Tracy 1938-6-15 15938 Humboldt vicinity Carlotta; vicinity of Carlotta 30 Comment
  BLMAR280  Sidalcea malviflora subsp. patula Jennifer Anthony-Wheeler 1999-5-28 280 Humboldt King range, growing along windy pt rd about 1/2 way to the spring exclosure 140 Comment
  UC176988  Sidalcea malviflora subsp. patula Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3595 Humboldt near Hydesville; Northern Coast Region, near Hydesville 30 Comment
  UC902190  Sidalcea oregana subsp. eximia Joseph P. Tracy 1949-8-11 18461 Humboldt Snow Camp 1432 Comment
  UC902189  Sidalcea oregana subsp. spicata Joseph P. Tracy 1947-7-5 17822 Humboldt Box Camp Meadow Trinity Summit, Box Camp Meadow 1463 Comment
  CDA24094  Silene californica R. Spadoni 1992-6-15 Humboldt Along mad River east of Arcata, near Blue Lake, Redwood Valley. 0 Comment
  BLMAR456  Silene gallica Jennifer Anthony-Wheeler 2008-5-27 456 Humboldt Samoa dunes, growing in Samoa Endangered Plant Protection Area 9 Comment
  CAS-BOT-BC181262  Silene hookeri subsp. hookeri Doris K. Kildale 1929-3-26 9137 Humboldt Orleans, Klamath River 152 Comment
  CAS-BOT-BC389049  Silene laciniata subsp. californica Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC4169  Silene laciniata subsp. californica C. B. Wolf 1927-8-28 1175 Humboldt On the grade 9 mi. from Willow Creek, Lord Ellis Rd. to Blue Lake Comment
  HSC48789  Silene laciniata subsp. californica Brad Klipfel 1975-6-17 666 Humboldt Along Titlow Hill Rd. Comment
  HSC41200  Silene laciniata subsp. californica Thomas W. Nelson, Jane P. Nelson 1977-7-4 3588 Humboldt Along W side of road N of Alder Springs 1524 Comment
  HSC13907  Sisyrinchium bellum T. M. Mingo May 1965 Humboldt E of College Cove, N of Trinidad Comment
  HSC93540  Solanum americanum Spadoni 1997-12-2 Humboldt 1335 J St., Eureka 15 Comment
  HSC21308  Solanum nigrum Francis Morrell 1949-5-30 35 Humboldt Weitchpec Comment
  HSC38086  Solanum parishii Thomas W. Nelson, James Nelson 1976-5-30 2607 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1196158  Solanum sarrachoides J. P. Tracy Sept. 1907 2605 Humboldt immediate vicinity of Eureka 0 Comment
  HSC21316  Solanum triflorum D. E. Anderson 1962-11-7 2342 Humboldt Near Trinity Hospital Comment
  UC1196154  Solanum umbelliferum Joseph P. Tracy 1937-7-2 15406 Humboldt head of Little Hors-Linto Creek (Trinity Summit); , Little Hors-Linto Creek 1371 Comment
  HSC57904  Solidago elongata Gilbert Muth 1979-7-31 11501 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  POM318722  Solidago elongata Patricia Wilder 1968-8-21 4389 Humboldt Edge of bog in Big Lagoon Park, just west of US 101; Coast Range; Big Lagoon to Pacific Ocean drainage. 2 Comment
  UC1070251  Solidago elongata H. L. Person 1932-7-19 Humboldt Lindsay Creek Eureka Quad, Lindsay Creek Comment
  UC165026  Solidago elongata J. P. Tracy 1900-8-26 923 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC365671  Solidago spathulata Harley P. Chandler 1901-5-1 1203 Humboldt North Coast Ranges. Humboldt Bay 30 Comment
  CDA8800  Solidago spathulata T. C. Fuller 1961-9-28 7051 Humboldt Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  HSC59683  Solidago spathulata George Kirn 1977-10-30 Humboldt 1/2 mi. from mouth of Elk River 8 Comment
  BLMAR550  Solidago spathulata Jennifer Wheeler 2004-7-15 550 Humboldt Stornetta Ranch Comment
  HSC39803  Sonchus asper Peter Sorensen 1976-7-11 Humboldt King Salmon Comment
  HSC6217  Sonchus asper J. W. Johnson 1962-6-12 1410 Humboldt Arcata; between the foredunes, at foredune 39, Samoa Comment
  UCSB30587  Sonchus asper Edwards, David 1974-8-12 Humboldt North side of 7th St. just W. of its overpass of U.S. 101, Arcata 18 Comment
  HSC63283  Sorbus scopulina M. A. Baker 1979-6-29 934 Humboldt Head of Oregon Creek Comment
  CHSC23303  Sparganium emersum subsp. emersum Robert F. Thorne; P. Everett 1965-8-9 35321 Humboldt Clam Beach County Park; along highway in ditch. 3 Comment
  UC672884  Sparganium emersum var. emersum Joseph P. Tracy 1934-7-30 13507 Humboldt in front of s end Stone Lagoon (Dry Lagoon); Dry Lagoon 3 Comment
  CHSC79893  Spartina densiflora Gordon Leppig; Kai Neader 1999-4-30 1130 Humboldt Humboldt Bay, Eureka. 30 m south of Del Norte St. fishing pier. UTM zone 10, 4517N, 399E. 1 Comment
  OBI36628  Spartina densiflora David J. Keil 1983-7-2 17296 Humboldt Humboldt Bay salt marsh at Arcata Corp Yard Comment
  UC249860  Spartina densiflora Joseph P. Tracy 1924-8-4 6738 Humboldt Eureka Northern Coast Ranges (salt marsh at railroad station) 0 Comment
  CAS-BOT-BC236608  Spartina foliosa W. A. Silveus 1938-7-10 2966 Humboldt Eureka Comment
  CDA35771  Spartina foliosa J. R. Keck Jr. 1987-10-28 PDR# 331439 Humboldt Humboldt Bay tidal zone near Somoa. 0 Comment
  SJSU7903  Spartina spartinae H. T. Harvey 1977-7-5 599 Humboldt tidal salt marsh, Elk River Spit, southerly outskirts of Eureka, Humboldt Bay Comment
  HSC4241  Spergula arvensis S. R. Johnson 1965-3-14 2 Humboldt 1.5 mi N of Luffenholtz Beach Comment
  UCD99184  Spergula arvensis Collector unknown 1925-6-7 1613 Humboldt Willow Camp. Comment
  CAS-BOT-BC390305  Spergularia macrotheca var. macrotheca A. A. Heller 1923-7-9 13780 Humboldt Flat between Eureka and Arcata Comment
  CAS-BOT-BC149622  Spiraea douglasii G. A. Coleman 1901-7-20 s.n. Humboldt Near Arcata Comment
  UC275298  Spiraea douglasii R. M. Holman 1925-7-23 Humboldt Big Lagoon Comment
  UC666852  Spiraea douglasii Joseph P. Tracy 1937-7-17 15435 Humboldt Eureka 30 Comment
  RSA249514  Spiranthes romanzoffiana Robert F. Thorne, Percy C. Everett 1965-8-5 35154 Humboldt Samoa Dunes. 3 Comment
  RSA286353  Spiranthes romanzoffiana Robert F. Thorne 1974-7-29 45085 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  UC144106  Spiranthes romanzoffiana Joseph P. Tracy 1909-8-29 3086 Humboldt Humboldt Hill Northern Coast Region, Region about Humboldt Bay (near Field's Landing) 0 Comment
  SEINET5196066  Stachys ajugoides Unknown 2002-8-22 87 Humboldt Along Fischer Road 0.25mi N of the Mad River. Comment
  UC630639  Stachys ajugoides var. ajugoides Joseph P. Tracy 1939-6-23 16312 Humboldt Park's garden Trinidad 3 Comment
  SFV18496  Stachys ajugoides var. rigida J. A. Riddell 2002-4-19 58 Humboldt Arcata. On the banks of Campbell Creek 10 Comment
  JEPS63027  Stachys ajugoides var. rigida Milo S. Baker 1923-7-16 18 Humboldt 4 mi se Eureka Comment
  JEPS63032  Stachys ajugoides var. rigida Milo S. Baker 1923-7-20 72 Humboldt 4 mi e Eureka; North Coast Comment
  JEPS63026  Stachys chamissonis Joseph P. Tracy 1940-9-26 16726 Humboldt Eureka 3 Comment
  RSA33417  Stachys emersonii Carl B. Wolf 1937-8-13 9246 Humboldt North Coast Range, 11 mi. E. of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  HSC23710  Stachys rigida Tim Baroni 1971-6-25 38 Humboldt Comment
  RSA82586  Stachys rigida subsp. rigida F. W. Peirson 1932-7-7 10260 Humboldt Roadside, on Willow Creek, a few miles Willow Creek P.O. Comment
  UC8638  Stellaria borealis subsp. sitchana Harley P. Chandler May 1901 1178 Humboldt Humboldt Bay; North Coast Ranges Comment
  HSC75438  Stellaria media J. O. Sawyer 1980-7-18 3580 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC91609  Stellaria media E. Mackey 1987-1-17 Humboldt Patricks Point State Park, near Wedding Rock. Comment
  UC1199363  Stephanomeria elata Joseph P. Tracy 1930-7-25 8880 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC375783  Stephanomeria virgata Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC87607  Streptanthus tortuosus Doris K. Kildale 1928-5-27 5955 Humboldt Kneeland Prairie. 853 Comment
  UCD84700  Streptanthus tortuosus Robert E. Preston 2009-5-27 2681 Humboldt 5.9 mi S of Weitchpec, along Hwy 96. 188 Comment
  HSC57178  Streptanthus tortuosus var. tortuosus Terry Griswold, Marvin Butler 1979-7-10 6206 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  HSC58202  Streptanthus tortuosus var. tortuosus Walter Overton 1979-8-1 12306 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1402 Comment
  HSC57156  Streptopus amplexifolius Overton, Butler 1979-7-26 9955 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  CAS-BOT-BC269570  Symphoricarpos albus var. laevigatus Doris K. Kildale 1926-6-27 2221 Humboldt Laribee Valley 701 Comment
  BLMAR248  Symphoricarpos mollis Jennifer Anthony-Wheeler 1997-7-24 248 Humboldt Lacks Creek, growing beneath conifer canopy 1219 Comment
  HSC58035  Symphoricarpos mollis G. L. Clifton 1979-7-31 11870 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC58385  Symphyotrichum bracteolatum Terry Griswold 1979-7-25 10923 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1784 Comment
  HSC58801  Symphyotrichum bracteolatum G. L. Clifton, Griswold 1979-7-31 11611 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  JEPS40848  Symphyotrichum hendersonii Joseph P. Tracy 1937-8-12 15634 Humboldt Snow Camp 1402 Comment
  UC1409110  Symphyotrichum subspicatum Robert F. Thorne and P. Everett 1965-8-9 35336 Humboldt 3 mi n, along Hwy. 101 Eureka 1 Comment
  HSC21149  Synthyris reniformis G. N. Bos 1965-5-2 247 Humboldt 8 mi. E of Korbel on Bald Mtn. Rd. 793 Comment
  HSC40906  Synthyris reniformis J. O. Sawyer 1970-4-24 2193 Humboldt Along FS Rd. 7N04 at Cedar Creek below Groves Prairie Comment
  UC1222774  Synthyris reniformis Joseph P. Tracy 1950-4-20 18614 Humboldt 1 mi w Dinsmore's (on Van Duzen River); Van Duzen River Comment
  HSC6245  Tanacetum bipinnatum Francis Winter 1960-5-6 Humboldt Mouth of Mad River, N of Arcata Comment
  CAS-BOT-BC376721  Tanacetum bipinnatum Paul F. Covel 1937-7-13 1056 Humboldt Bar near mouth Eel River Comment
  CAS-BOT-BC376730  Tanacetum bipinnatum Peter H. Raven 1962-8-31 18079 Humboldt Flats at Dry Lagoon State Park Comment
  UC249808  Tanacetum camphoratum Joseph P. Tracy 1923-6-17 6270 Humboldt Northern Coast Region, on Big Lagoon Big Lagoon; Northern Coast Region, Big Lagoon 6 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
  HSC49986  Tauschia glauca M. Andre' Baker 1979-6-7 787 Humboldt On N bank of the road to Snow Mt. 610 Comment
  JEPS14252  Tauschia kelloggii Joseph P. Tracy 1936-6-10 14933 Humboldt mountain slopes w mouth South Fork of Trinity River; w of mouth South Fork of Trinity River 457 Comment
  HSC98547  Taxus brevifolia Cara Witte 2008-6-7 687 Humboldt Forest Service Road 5N10. Approximately 1 mile south of intersection with Friday Ridge Road/ 6N08. 1346 Comment
  HSC64043  Tellima grandiflora Carl Wishner 1978-5-1 464 Humboldt Boise Creek Campground, Six Rivers National Forest Comment
  JEPS49696  Tellima grandiflora Milo S. Baker 1923-7-20 Humboldt near South Yager Creek (Redwood House Road) Comment
  RSA24202  Tellima grandiflora Carl B. Wolf 1941-3-3 9994 Humboldt N. Coast Range. 7.5 mi. N. of Ettersburg on rd. to Honeydew. 305 Comment
  UC1222570  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1950-7-6 18986 Humboldt Burr Valley Buck Mountain (nw slope of mt., lower end of valley) 1066 Comment
  CAS-BOT-BC399769  Thalictrum polycarpum Joseph P. Tracy 1933-5-20 12256 Humboldt Northern Coast Ranges. Mattole Valley 30 Comment
  CAS-BOT-BC81318  Thuja plicata Carl B. Wolf 1927-8-29 1192 Humboldt 7 mi. S. of Ferndale and Capetown, Bear River Ridge--Mt. Glen Comment
  SBBG34242  Thuja plicata L. Rowntree 1931-7-27 Humboldt near Ferndale Comment
  CAS-BOT-BC88324  Thysanocarpus curvipes John H. Thomas 1968-4-21 14363 Humboldt Near mouth of Bluff Creek about 6 miles northeast of Weithchpec near Bluff Creek Campground. 140 Comment
  SDSU9574  Tiarella Harvey 1938-8-14 2320 Humboldt Between Arcarta & Willow Creek, US 299. Comment
  SBBG21852  Tiarella trifoliata var. unifoliata D. Myrick 1964-7-26 979 Humboldt Redwood Hwy 101 near Garberville 152 Comment
  SDSU9572  Tiarella trifoliata var. unifoliata D. F. Howe 1961-7-31 3097 Humboldt 12 miles N of Garberville on #101. 30 Comment
  UC302171  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1925-7-5 7181 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC1198896  Tolmiea diplomenziesii Joseph P. Tracy 1925-11-25 7328 Humboldt near The South Fork (Trinity River Valley); Northern Coast Ranges 182 Comment
  UC1198897  Tolmiea diplomenziesii Joseph P. Tracy 1924-6-1 6689 Humboldt Lawrence Creek Northern Coast Ranges (at crossing of the Kneeland Road) 609 Comment
  CAS-BOT-BC447613  Tolmiea menziesii Alice Eastwood; John Thomas Howell 1937-6-23 4781 Humboldt Near Dinsmore's Comment
  SEINET12221294  Tolmiea menziesii J. P. Tracy 1950-1 19040 Humboldt near mouth of Raccoon Creek, 1 mi NE of Patterson's Ranch, vicinity of Willow Creek Comment
  HSC21164  Tonella tenella D. E. Anderson 1963-5-18 2452 Humboldt Near junction of New and Trinity Rivers Comment
  HSC34707  Torilis arvensis Thomas W. Nelson 1974-7-20 1698 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC74669  Torilis arvensis Gail Newton 1981-8-7 2434 Humboldt Near Bug Creek 1042 Comment
  HSC74725  Torilis arvensis Gail Newton 1981-8-6 2411 Humboldt Near Mad River. 1308 Comment
  UC1197331  Torilis arvensis subsp. arvensis Joseph P. Tracy 1940-8-3 16692 Humboldt Cathey Ranch near Miranda 30 Comment
  JEPS14165  Torilis nodosa Lincoln Constance 1934-5-27 706 Humboldt South Fork Eel River, S end of Dyerville Bridge 45 Comment
  UC1197062  Torilis nodosa Joseph P. Tracy 1930-8-3 9154 Humboldt McClellan Mountain 762 Comment
  JEPS88012  Tracyina rostrata John L. Strother with Bruce G. Baldwin and Robert Ornduff 1996-5-30 1363 Humboldt on unpaved Stewart Ranch Rd ca 1 km (0.6 mi) e Alderpoint-Blocksburg Road (ne of Alderpoint) 160 Comment
  HSC98556  Tragopogon dubius Cara Witte 2008-7-10 849 Humboldt Forest Service Road 4N06A. Cow Creek Ridge. 1 mile from National Forest 1. Under powerlines. 1237 Comment
  CAS-BOT-BC517424  Triantha occidentalis subsp. occidentalis Volney Rattan 1867-6-1 s.n. Humboldt Red Mountain Comment
  HSC98856  Triantha occidentalis subsp. occidentalis Cara Witte 2008-7-30 973 Humboldt Forest Service Road 5N04. 1/4 mile east of intersection with Forest Service Road 4N70. 1583 Comment
  HSC32531  Trichostema lanceolatum Thomas W. Nelson 1973-9-3 1131 Humboldt McKeown Ranch N of Dinsmore Comment
  JEPS63108  Trichostema lanceolatum Milo S. Baker 1923-8-25 332 Humboldt highway near Garberville; North Coast Comment
  RSA440753  Trichostema laxum E. S. Spalding 1924-7-13 s.n. Humboldt Lanis Flats, bank of Eel River. Comment
  UC32547  Trichostema laxum Chestnut and Drew 1888-7-12 Humboldt Campbell's Comment
  UC1222859  Trichostema oblongum Joseph P. Tracy 1950-8-8 19284 Humboldt Croghan Hole, on Trinity Summit 1676 Comment
  UC577372  Trichostema oblongum Joseph P. Tracy 1927-8-27 8327 Humboldt Willow Creek Trinity River Valley 152 Comment
  BLMAR277  Trientalis latifolia Jennifer Anthony-Wheeler 1999-7-30 277 Humboldt Headwaters Forest Reserve, growing in shaded places esp woodlands 548 Comment
  BLMAR75  Trientalis latifolia Jennifer Anthony-Wheeler 1994-6-2 75 Humboldt IAQUA, growing by logging rd in shaded forest 853 Comment
  JEPS43093  Trientalis latifolia Lincoln Constance 1934-6-1 775 Humboldt Mouth of Bull Creek, Bull Creek Road, between Dyerville Bridge and Bull Creek, South Fork Eel River Bull Creek; Bull Creek Region, South Fork Eel River 45 Comment
  UC1197212  Trifolium albopurpureum var. dichotomum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3613 Humboldt near Hydesdale (and Alton); Northern Coast Ranges Comment
  UC1223516  Trifolium barbigerum Joseph P. Tracy 1933-5-20 12240 Humboldt Petrolia Mattole Valley Comment
  UC1223517  Trifolium barbigerum J. P. Tracy 1948-6-13 18039 Humboldt 7 mi nw Blockburg (where rd is near creek, halfway betw Bridgeville and Blocksburg) Comment
  UC198593  Trifolium barbigerum Joseph P. Tracy 1917-5-30 4806 Humboldt Little River Beach Northern Coast Ranges 6 Comment
  SEINET6934848  Trifolium bifidum Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie, about 4 miles southeast of Kneeland. Comment
  UC1197182  Trifolium bifidum var. decipiens Joseph P. Tracy 1906-7-4 2522 Humboldt near Hydesville (Yager Creek); Northern Coast Ranges 60 Comment
  UC1223476  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1941-4-26 16864 Humboldt Kneeland Prairie 762 Comment
  POM214884  Trifolium dichotomum Joseph P. Tracy 1932-5-1 9894 Humboldt Vicinity of Garberville Comment
  UCD108809  Trifolium dichotomum Joseph P. Tracy 1933-5-20 12234 Humboldt Cape Mendocino. Mouth of Domingo Creek. South of point of the Cape. Comment
  HSC38929  Trifolium dubium Linda M. Barker 1976-5-13 1476 Humboldt 3 mi. W of Arcata. Comment
  JEPS79998  Trifolium dubium Joseph P. Tracy 1925-5-17 6971 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1223468  Trifolium dubium Joseph P. Tracy 1948-5-31 18024 Humboldt Blocksburg Comment
  RSA91498  Trifolium dubium F. W. Peirson 1923-7-11 3622 Humboldt 20 miles north of Eureka Comment
  UC16712  Trifolium eriocephalum var. eriocephalum J. Burtt Davy 1899-6-7 5385 Humboldt near Harris; Northern Coast Ranges Comment
  UC1223464  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1949-8-4 18415 Humboldt toward Trinity Summit (Mud Springs, on rd from Hoopa) 1341 Comment
  RSA296715  Trifolium fragiferum Thomas W. Nelson 1973-7-24 1099 Humboldt On the flood plain of the Mad River at the north end of the Carson railroad bridge. Comment
  UCD108946  Trifolium fragiferum P. B. Kennedy 1929-6-14 10326 Humboldt Eureka. Niles Ranch. Comment
  UCD108947  Trifolium fragiferum B. A. Madson 1940-8-7 s.n. Humboldt Humboldt County. Comment
  HSC100535  Trifolium involucratum Carl C. Marshall Jun 1885 117 Humboldt Near the bay anywhere. Comment
  UC495657  Trifolium longipes var. elmeri Joseph P. Tracy 1936-7-13 10525 Humboldt Trinity Summit Klamath Mtns, Corral Prairie 1524 Comment
  UC162843  Trifolium macraei J. P. Tracy 1900-6-5 843 Humboldt vicinity Eureka (Bucksport) 0 Comment
  UC495695  Trifolium microcephalum Joseph P. Tracy 1932-5-1 9893 Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  HSC45143  Trifolium microcephalum R. Sutherland 1978-5-12 12 .12578 Humboldt 282 Comment
  UC1197504  Trifolium obtusiflorum Joseph P. Tracy 1914-5-30 4480 Humboldt near Hydesville; Northern Coast Ranges 60 Comment
  JEPS4443  Trifolium oliganthum Joseph P. Tracy 1921-4-24 5438 Humboldt facing South Fork of Eel River (Phillipsville); Northern Coast Ranges 121 Comment
  HSC45134  Trifolium oliganthum R. Sutherland 1978-5-21 2 .21578 Humboldt 433 Comment
  SEINET4178477 Image available Trifolium oreganum Unknown 1927-6-12 8122 Humboldt Horse Mountain 1524 Comment
  UC1197043  Trifolium pratense Joseph P. Tracy 1911-6-25 3264 Humboldt Eureka Northern Coast Region 0 Comment
  HSC77398  Trifolium pratense L. P. Janeway 1983-5-3 259 Humboldt Along E Fence of HSU playing field 21 Comment
  HSC57902  Trifolium repens Gilbert Muth 1979-7-31 11496 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  UCD109887  Trifolium willdenovii Tofsrud 1948-1 s.n. Humboldt location unknown. Comment
  HSC15196  Trifolium wormskioldii J. W. Bosworth 1965-5-14 50 Humboldt 1 mi. N of Fairhaven Comment
  HSC40959  Trifolium wormskioldii Linda M. Barker 1976-6-1 1547 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  RSA518825  Trifolium wormskioldii Joseph P. Tracy 1923-6-17 6274 Humboldt Big Lagoon 6 Comment
  UC162834  Trifolium wormskioldii J. P. Tracy 1906-8-18 2547 Humboldt Eureka vicinity 0 Comment
  RSA639405  Trifolium wormskioldii Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-7 35196 Humboldt Big Lagoon; at edge of bog at south end of lagoon. 2 Comment
  UC1223372  Trifolium wormskioldii Joseph P. Tracy 1950-6-18 18767 Humboldt w Petrolia (hills betw town and ocean) Comment
  CAS-BOT-BC451803  Triglochin maritima Joseph P. Tracy 1933-8-22 12988 Humboldt Mouth of Eel River 3 Comment
  CHSC69507  Triglochin maritima Vernon Oswald; Lowell Ahart 1997-9-4 8849 Humboldt North Coast Region. Big Lagoon County Park at the southwest edge of Big Lagoon. Bordering a drainage entering the lagoon at the boat ramp. 3 Comment
  JEPS101255  Triglochin maritima Dean W. Taylor 1991-9-15 12291 Humboldt Big Lagoon, along Highway 101 near the mouth of Tom Creek. 3 Comment
  UC275566  Triglochin maritima Joseph P. Tracy 1924-7-13 6718 Humboldt Northern Coast Region, Big Lagoon Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  HSC49396  Triglochin maritima R. York 1979-4-13 228 Humboldt Boat dock at Big Lagoon Comment
  HSC28002  Trillium kurabayashii Maralyn O'Meara 1972-5-29 77 Humboldt 18.6 mi. up Bald hills Rd. from junction with Hwy. 101 near Orick 915 Comment
  HSC96774  Trillium kurabayashii M. Mesler 2006-5-25 604 Humboldt Big Hill Rd., 11.4 mi. E of Hwy. 96 at Six Rivers Forest boundary 1463 Comment
  HSC15699  Trillium ovatum D. E. Anderson 1962-2-23 1923 Humboldt Grove E of HSC campus Comment
  HSC41231  Trillium ovatum Brad Klipfel 1974-5-8 320 Humboldt Horse Mountain Comment
  UC1197825  Trillium ovatum Joseph P. Tracy 1911-5-7 3184 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  SEINET10906254  Triodanis biflora Chandler CHANDLER 1415 Humboldt Klamath River 427 Comment
  UC602558  Triodanis perfoliata Joseph P. Tracy 1932-6-14 10154 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  HSC95575  Triphysaria eriantha subsp. eriantha Andrea Pickart 2002-3-29 17 Humboldt Samoa Dunes 0 Comment
  JEPS26224  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1899-4-9 136 Humboldt region about Humboldt Bay Bucksport; Northern Coast Region, region about Humboldt Bay 0 Comment
  HSC23103  Triphysaria pusilla D. E. Anderson 1965-5-6 3609 Humboldt Along Hwy. 299 Comment
  HSC102548  Trisetum canescens M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1536 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UCD93635  Trisetum canescens R. Tofsrud 1947-7-1 199 Humboldt North of Harris. Comment
  UC526694  Trisetum cernuum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9001 Humboldt McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  SEINET10604393  Trisetum cernuum Harley P. Chandler Chandler 1176 Humboldt Humboldt Bay. 30 Comment
  HSC77401  Triteleia bridgesii L. P. Janeway 1983-5-29 319 Humboldt Along rd. to Fish Lake, 0.1 mi. W of Hwy. 96 152 Comment
  SEINET200771  Triteleia laxa Joseph P. Tracy 1947-6-8 17704 Humboldt Carlotta; Open flat by old Strong's District School House 5 miles east of town 46 Comment
  UC175817  Triteleia laxa Joseph P. Tracy 1912-6-30 3711 Humboldt Eureka Northern Coast Region 0 Comment
  HSC79549  Triteleia laxa Kenneth Clark 1980-6-14 667 Humboldt On western slope above Dead Man's Gulch (near parking access) 145 Comment
  CDA2565  Triticum aestivum Gordon Leppig, Sylvia Leppig, K. Neander 2000-4-14 1293 Humboldt East of Community Center parking lot, Arcata. Comment
  HSC13439  Triticum aestivum L. M. Malloy 1965-5-20 30 Humboldt Old county dump, 5 mi. from Arcata on Fickle Hill Rd. Comment
  HSC49015  Tropaeolum majus Patricia Shesgreen 1978-8-5 129 Humboldt Along side road on 16th St., 100 yds. E of Union St., Arcata. Comment
  RSA648962  Tsuga heterophylla David J. Keil 1983-7-2 17305 Humboldt Freeway exit from US 101 at Patrick s Point. Comment
  SEINET3875748  Tsuga heterophylla K. S. Erdman 1970-6-18 4798 Humboldt Cal-Barrow Road, 3 miles E. of US 101 at boundary of Prairie Creek State Park (redwood National Park).; 0 Comment
  HSC94100  Ulex europaeus D. M. Hull 1986-2-26 48 Humboldt Corner of Beverly Way and Chapman Ave. Arcata, CA Comment
Read comments
Jan 13 2012
  HSC41923  Umbellularia californica Ed Cope 1977-4-23 25 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  UC153974  Urtica dioica subsp. gracilis J. P. Tracy 1910-10-1 3166 Humboldt immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC404069  Urtica dioica subsp. holosericea Henry M. Pollard 1956-10-13 s.n. Humboldt Bank of Klamath River at Orleans Hotel, Orleans Comment
  UC672856  Urtica dioica subsp. holosericea Joseph P. Tracy 1937-7-19 15448 Humboldt Blue Slide on Van Duzen River Blue Slide; Van Duzen River, Blue Slide 91 Comment
  CAS-BOT-BC193961  Vaccinium cespitosum Doris K. Kildale 1928-5-25 6039 Humboldt Foot of Third Street near drawbridge on Eureka Slough, Eureka Comment
  UC1197785  Vaccinium cespitosum Joseph P. Tracy 1932-7-16 10618 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC100479  Vaccinium ovatum Carl C. Marshall Mar 1886 140 Humboldt Near coast everywhere. Comment
  HSC7914  Vaccinium ovatum J. Pursell 1964-10-11 10111 Humboldt Patricks Point State Park, trail to wedding rock Comment
  HSC89511  Vaccinium ovatum M. Roantree 1985-4-25 6 Humboldt E side of Trinidad Head. Comment
  RSA2925  Vaccinium ovatum C. B. Wolf 1931-8-29 1240 Humboldt Near summit of Orick Hill on road to Weitchpec. 305 Comment
  UCD118079  Vaccinium ovatum Joseph M. DiTomaso 1976-3-28 349 Humboldt Arcata, beneath Redwood tree. Comment
  UCD166925  Vaccinium ovatum Colleen Rossier 2016-9-17 9 Humboldt In vicinity of Sunny Ridge Stump. Plot Sunny Ridge Old Stump. 579 Comment
  UCR275111  Vaccinium ovatum Charity A. Hartshorn 2016-5-14 31 Humboldt Arcata Community Forest 244 Comment
  CHSC27318  Vaccinium parvifolium T. B. Devine 1977-8-20 459 Humboldt Near Kneeland Road ca 1 mi from Kneeland towards Eureka. 548 Comment
  JEPS52976  Vancouveria W. L. Jepson 1932-8-1 16471 Humboldt Bull Creek; deep woods at Geant Tree 121 Comment
  JEPS52977  Vancouveria W. L. Jepson 1932-8-9 16541 Humboldt Deerfoot Glade Bull Creek; , Deerfoot Glade Comment
  CAS-BOT-BC76054  Vancouveria hexandra L. R. Abrams 1916-7-11 5983 Humboldt Between Blocksberg and Bridgeville. Comment
  HSC98815  Vancouveria hexandra Cara Witte 2008-7-7 839 Humboldt National Forest Road 5N10. 2 miles south of intersection with Friday Ridge Road. Near waterhole sign. 1224 Comment
  HSC3387  Vancouveria hexandra N. D. Dennis 1965-5-2 37 Humboldt 2 mi. N of Trinidad on Hwy. 101 Comment
  HSC37714  Vancouveria hexandra J. D. Ackerman, A. M. Montalvo 1974-7-17 375 Humboldt Redwood Grove, E of Van Duzen Co. Park, off Hwy. 36, E of Carlotta 61 Comment
  CAS-BOT-BC76086  Vancouveria planipetala L. R. Abrams 1918-6-16 7189 Humboldt Willow Creek. Comment
  HSC33418  Vancouveria planipetala Thomas W. Nelson 1974-5-30 1344 Humboldt Along Hoopa-Redwood Valley Rd. Comment
  HSC76279  Vancouveria planipetala Teresa Prendusi 1981-7-7 123 Humboldt Near Slate Creek Butte. 1158 Comment
  UC9791 Image available Vancouveria planipetala Harley P. Chandler May, 1901 1162 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 30 Comment
  POM272219  Vancouveria planipetala Lyman Benson 1928-7-8 377 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; Watershed: S Fork Eel River. 61 Comment
  JEPS51168  Velezia rigida W. L. Jepson 1902-7-25 2120 Humboldt Hupa Valley Supply Creek (Supply Creek); , Supply Creek Comment
  HSC32234  Velezia rigida J. O. Sawyer 1970-6-24 2248 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  UC1222525  Veratrum californicum var. californicum Joseph P. Tracy 1950-6-25 18878 Humboldt nw slope Buck Mountain; Burr Valley 1066 Comment
  JEPS11185  Verbascum blattaria Lincoln Constance 1934-5-26 658 Humboldt South Fork of Eel River s end Dyerville Bridge (Bull Creek Region); South Fork Eel River, Bull Creek Region 45 Comment
  UC447232  Verbascum blattaria Joseph Burtt Davy and Walter C. Blasdale 1899-6-28 5898 Humboldt below Hoopa Valley (Klamath River); North Coast Ranges, Klamath River Comment
  HSC75560  Verbena lasiostachys J. O. Sawyer, R. J. Cole 1977-7-3 3013 Humboldt Environs of Mud Spring, Big Hill Rd. (F.S. 8N01) 1524 Comment
  JEPS16845  Veronica americana W. L. Jepson 1932-7-30 16452 Humboldt Bull Creek 121 Comment
  UCR45402  Veronica arvensis Barry Silver 1986-4-23 542 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  HSC21201  Veronica peregrina P. Markle 1962-5-16 41 Humboldt Near City of Arcata Reservoir on road 61 Comment
  HSC99072  Veronica peregrina subsp. xalapensis Cara Witte 2007-6-21 331 Humboldt White Oak Opening. Along Kinsey Ridge. 1259 Comment
  HSC63853  Veronica serpyllifolia subsp. humifusa M. A. Baker 1979-6-27 920 Humboldt Edge of Hoopa Indian Reservation Comment
  HSC96944  Veronica serpyllifolia subsp. humifusa Ryoko Ito, Shauna McDonald 2007-6-13 7 Humboldt 1 mi. from NF1 on FS 5N04 1601 Comment
  RSA800193  Vicia Robert F. Thorne, Percy C. Everett 1965-8-8 35242 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  HSC15260  Vicia hirsuta Harvey Doerksen 1962-5-8 19 Humboldt 3 mi. W of Blue Lake, fork Mad River and Essex Creek Comment
  HSC33770  Vicia hirsuta Paul Dryden 1975-5-24 202 Humboldt Samoa Dunes, across from the boat landing. Comment
  POM161054  Vicia sativa Joseph P. Tracy 1926-5-2 7433 Humboldt Trinity River Valley, near the south fork. Comment
  POM92410  Vicia sativa L. R. Abrams 1922-6-25 8238 Humboldt 2 miles south of Fortuna Comment
  UCD108854  Vicia sativa subsp. nigra Linda M. Barker 1976-5-13 1481 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC15255  Vicia sativa subsp. nigra W. F. Nickel 1965-4-28 Humboldt On S side of Biological Science Building, near baseball field Comment
  HSC38483  Vicia sativa subsp. nigra D. E. Anderson, J. P. Smith 1971-6-18 - 1063 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  UC1562619  Vicia tetrasperma Barbara Ertter with Thomas J. Delendick 1987-5-16 6912 Humboldt ca 8 mi e Arcata (Hwy 299 roadside, 9.5 mi w of Lord Ellis summit) Comment
  HSC25947  Vicia tetrasperma Thomas W. Nelson 1970-12-1 291 Humboldt River bar of the Eel River north of the Scotia Bluff Comment
  HSC89999  Vicia villosa subsp. villosa Leonel Arguello 1989-6-24 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, end of the Fernstrom-Root trail Comment
  CAS-BOT-BC263945  Viola adunca Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC21774  Viola adunca K. P. St. John 1965-4-3 10 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  UC1761620  Viola adunca J. P. Tracy 1901-6-23 1168 Humboldt Eureka Comment
  CAS-BOT-BC263953  Viola adunca V. Rattan 1882-6-1 s.n. Humboldt Kneeland RIver Comment
  UC1761536  Viola adunca Mrs. Wilder 1926-4 5432 Humboldt Carlotta, Mrs. Wilder's yard Comment
  UC1762591  Viola cuneata Harley P. Chandler Jun 1901 1297 - Humboldt Hupa Indian Reservation North Coast Ranges 609 Comment
  HSC21788  Viola glabella D. K. Smith 1968-4-8 13 Humboldt On West End Rd., ca. 3 mi. from U.S. 299 Comment
  HSC39000  Viola hallii Thomas W. Nelson, Jane P. Nelson 1976-5-31 2654 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  HSC21804  Viola hallii D. E. Anderson 1967-6-10 4367 Humboldt W-facing slope on Horse Mtn. 1220 Comment
  CAS-BOT-BC536941  Viola lobata Volney Rattan 1879-6-1 s.n. Humboldt Klamath Comment
  HSC21822  Viola ocellata D. E. Anderson 1965-5-1 3557 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC34953  Viola ocellata Thomas W. Nelson 1975-5-24 1867 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC21824  Viola ocellata Jack Rockwell 1962-5-12 70 Humboldt N of Bridgeville in hillside canyon 213 Comment
  SEINET200806 Image available Viola ocellata J. P. Tracy 1922-4-30 6034 Humboldt Tinity River Valley near Willow Creek 500 Comment
  UC164839  Viola palustris Joseph P. Tracy 1901-5-30 1105 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  SEINET200801 Image available Viola praemorsa J. P. Tracy 1922-5-29 6067 Humboldt Head of South Yager Creek Comment
  HSC71831  Viola purpurea subsp. purpurea Thomas W. Nelson, Jane P. Nelson 1980-6-27 5959 Humboldt Saddle E of Mt. Lassic 1677 Comment
  SEINET10404788  Viola sarmentosa Unknown 1967-6-16 67 -12 Humboldt of Orick; James Irvine redwood grove, U.S. 101 Comment
  UC727172  Viola sempervirens A. A. Heller 1924-7-23 13877 Humboldt Trinidad Head Comment
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Sep 29 2006
  RSA244947  Viola sempervirens Norman Dennis 1965-5-8 55 Humboldt 0.1 mile west of Lord Ellis Summit on Hwy 299. Comment
  UC1103559  Viola sheltonii Joseph P. Tracy 1933-6-13 12586 Humboldt near summit of Hoopa Mountain (on road from Hoopa westward to Bair's) 1127 Comment
  SEINET200825 Image available Vitis californica Joseph P. Tracy 1911-1 3333 Humboldt Along Willow Creek, a tributary of Trinity River. Near its mouth 152 Comment
  UC34984  Vitis californica Chesnut and Drew 1888-7-25 Humboldt Hy-Am-Pom Comment
  SEINET10918233  Vitis californica Unknown 1988-7-25 Anonymous s.n Humboldt Hwy Am [P--], Chestnut & Drew Comment
  HSC9839  Vulpia bromoides J. W. Johnson 1962-4-18 1266 Humboldt Along the lane below the W.M. Lanphere Home, Samoa Peninsula Comment
  UC594246  Vulpia microstachys var. pauciflora S. K. Harris, J. P. Tracy and H. S. Yates 1936-6-17 3431 Humboldt Buck Mountain 822 Comment
  HSC73581  Vulpia myuros Gail Newton 1980-7-14 1482 Humboldt Near Last Chance Ridge. 1219 Comment
  CAS-BOT-BC128811  Whipplea modesta Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville Comment
  HSC20441  Whipplea modesta D. E. Anderson 1962-5-1 2197 Humboldt 2 mi. W of Hoopa Comment
  UC1541295  Whipplea modesta H. E. and S. T. Parks May, 1930 753 Humboldt along roads adjacent to Van Duzen River Comment
  UCR32168  Whipplea modesta David J. Keil 1983-7-2 17322 Humboldt c. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  HSC12851  Woodwardia fimbriata C. E. Fellows 1970-11-28 320 Humboldt H.S.C. Campus, Arcata, E end old Science wing Comment
  UCD136054  Woodwardia fimbriata K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  HSC6317  Wyethia angustifolia D. E. Anderson 1963-5-25 2484 Humboldt 2-3 mi. N of Capetown Comment
  HSC98878  Wyethia angustifolia Cara Witte 2008-7-2 797 Humboldt National Forest Road 1; 5 miles south of intersection with 5N04. Before cattle guard crossing. 1406 Comment
  JEPS32069  Wyethia angustifolia Joseph P. Tracy 1936-6-17 14947 Humboldt nw slope Buck Mountain 762 Comment
  SBBG36549  Wyethia angustifolia H. and M. Dearing 1939-6-23 3695 Humboldt 20 mi E of Arcata Comment
  UC36765  Wyethia angustifolia Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5726 Humboldt Supply Creek Hoopa Valley, Supply Creek (Hoopa Valley, north-western California) Comment
  UC582642  Wyethia angustifolia Joseph P. Tracy 1934-6-14 13217 Humboldt in open forest in serpentine belt Horse Mountain 1432 Comment
  JEPS109808  Wyethia longicaulis Dean W. Taylor 2004-6-24 19132 Humboldt Horse Mountain, along Titlow Hill Road 0.4 miles north from the junction with the road to the mountain summit 1310 Comment
  UC1223296  Xanthium spinosum Joseph P. Tracy 1943-11-28 17452 Humboldt river bar at mouth Van Duzen River (near Alton); Eel River 91 Comment
  JEPS37537  Xanthium strumarium Lincoln Constance 1934-6-12 865 Humboldt n bank South Fork Eel River (Dyerville, Bull Creek Road, Bull Creek Region); n bank South Fork Eel River, Bull Creek Region, Dyerville Comment
  BLMAR415  Xanthium strumarium Jennifer Wheeler 2007-8-22 415 Humboldt South Spit, East side of road, near ecotone between atriplex and dune swale Comment
  HSC73049  Xerophyllum tenax M. A. Baker 1980-7-11 2775 Humboldt Near Red Mtn. 1341 Comment
  HSC23679  Zeltnera muehlenbergii Tim Baroni 1971-7-5 103 Humboldt 8 mi. E of Petrolia Comment
  HSC31209  Zigadenus micranthus D. E. Anderson 1972-6-20 5741 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  JEPS62265  Zigadenus micranthus var. micranthus W. L. Jepson 1902-6-20 1907 Humboldt Hibbard's Station to Eel River Comment



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