Search Results — 2000 specimen records retrieved (1366 records with coordinates)
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Results for search: County=HUMBOLDT; Source=All;   

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

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC77966  Abies concolor Doris K. Kildale 1930-8-3 10358 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  CAS-BOT-BC78057  Abies grandis Doris K. Kildale 1927-2-21 2958 Humboldt Bucksport, back of cemetery 30 Comment
  SEINET11305271  Abies grandis W. D. Billings 1940-6-28 1357 Humboldt 1/4 mi. N of Trinidad Comment
  HSC55155  Abies procera Gilbert Muth 1979-8-1 12107 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  NY679513  Abronia umbellata subsp. breviflora H. E. Parks 09 1941 24212 Humboldt Mouth of Little River. Comment
  HSC75231  Abronia umbellata var. breviflora D. M. Gordon 1982-9-23 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  CAS-BOT-BC436986  Acaena novae-zelandiae D. W. Cooper 1967-6-30 s.n. Humboldt On ridge just southeast of Forest Service Nursery, ca. 2 miles southeast of Crannell and ca. 4 miles east of U.S. Highway 101 Comment
  CAS-BOT-BC330543  Acer circinatum Joseph P. Tracy 1942-7-26 17294 Humboldt Valley of South Yager Creek 609 Comment
  HSC73028  Acer glabrum var. torreyi Gail Newton 1980-7-23 1757 Humboldt Near Packsaddle Ridge 1463 Comment
  RSA46728  Acer glabrum var. torreyi Doris K. Kildale 1938-1 15372 Humboldt Hoopa trip. Comment
  HSC70824  Acer macrophyllum M. A. Baker 1980-6-7 1824 Humboldt Near Ammon Creek 732 Comment
  SDSU297  Acer macrophyllum L. N. Harvey 1930-9-27 Humboldt Eel River 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
  UC165821  Acer macrophyllum J. P. Tracy 1906-4-15 2403 Humboldt moist bottom lands on Mad River near Blue Lake; on Mad River near Blue Lake 30 Comment
  HSC24376  Achillea millefolium J. O. Sawyer 1970-6-24 2217 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC4549  Achillea millefolium D. B. Bader 1963-2-17 27 Humboldt Second of the Clam Beach Lagoons W of Hwy. 101 Comment
  HSC57983  Achillea millefolium G. L. Clifton, Griswold 1979-7-31 11717 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UCD128345  Achillea millefolium James P. Smith; Advanced Plant Taxonomy Class 1973 1973-5-26 6797 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  CAS-BOT-BC28583  Achillea millefolium J. Clausen 1949-6-22 2158 Humboldt 4 miles S of Scotia on redwood Highway in border of redwood forest near Eel River Comment
  HSC46013  Achillea millefolium Catherine Chin 1978-8-16 106 Humboldt Arcata; at 7th and A St. Comment
  HSC68080  Achillea millefolium J. P. Smith, Steve Selva 1970-6-30 4103 Humboldt Comment
  RSA416222  Achillea millefolium J. P. Smith, Thomas W. Nelson 1977-6-30 9221 Humboldt Samoa Peninsula just east of the drag strip. Comment
  UC1225749  Achlys californica Joseph P. Tracy 1946-6-23 17594 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC400001  Achlys californica E. Gundershaug; K. White; D. Johnson 1994-5-17 23 Humboldt 0.5 miles N of Hwy. 299 on old logging road, 17 miles E of Blue Lake 510 Comment
  HSC42004  Achlys triphylla Tom Duebendorfer 1977-5-15 51 Humboldt 8.9 mi. E on Ward Rd. from junction of Maple Creek Rd. and Old Hwy. 299 610 Comment
  HSC73179  Achlys triphylla M. A. Baker 1980-5-18 1295 Humboldt Near Black Mtn. 1006 Comment
  CAS-BOT-BC400026  Achlys triphylla Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Divide west of Willow Creek Comment
  SEINET260372 Image available Achnatherum lemmonii R. Spellenberg 1990-7-10 10248 Humboldt E edge county 8 mi WSW of Salyer 6 mi S of Berry Summit on CA Hwy 299; USFS 1372 Comment
  UC1103145  Achnatherum lemmonii Joseph P. Tracy 1926-6-20 7649 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  UC180228  Achnatherum lemmonii Joseph P. Tracy 1913-5-4 4047 Humboldt Kneeland Prairie North Coast Ranges, Kneeland Prairie 762 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
  SEINET11854795  Achyrachaena mollis J. P. Tracy 1948-1 18054 Humboldt near Harris Comment
  HSC45096  Acmispon micranthus R. Sutherland 1978-5-13 3 .13578 Humboldt Mattole River. 282 Comment
  UCD104507  Acmispon wrangelianus A. H. Murphy 1948-6-1 s.n. Humboldt Blue Slide, along highway, 3 miles west of Bridgeville. Comment
  HSC48684  Aconitum columbianum subsp. columbianum Brad Klipfel 1973-7-31 238 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC56154  Aconitum columbianum subsp. viviparum G. L. Clifton, Griswold 1979-8-1 12014 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC164786  Adenocaulon bicolor J. P. Tracy 1900-7-22 904 Humboldt immediate vicinity Eureka 0 Comment
  UC164803  Adenocaulon bicolor Joseph P. Tracy 1909-7-31 3042 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prarie 762 Comment
  UCSB29352  Adiantum aleuticum Phelps, M. 1972-3-22 Humboldt Throughout Telegraph Creek off Black Sands Road, Shelter Cove 45 Comment
  CAS-BOT-BC65554  Adiantum capillus-veneris W. R. Dudley 1903-8-1 s.n. Humboldt Hot Springs (probably near Calif. Redwood Park) Comment
  UC811115  Adiantum jordanii George Neville Jones 1936-3-22 8662 Humboldt s fork Eel River near Garberville Comment
  HSC31797  Aesculus californica Steve Selva, Roger Jensen 1974-8-27 80 Humboldt W of Humboldt-Trinity co. line on Hwy. 299 Comment
  RSA458173  Aesculus californica Charlotte M. Hoak 1931-07 s.n. Humboldt Alton. Comment
  SEINET3823281 Image available Aesculus californica Joseph P. Tracy 1921-10-22 5978 Humboldt Bridgeville 305 Comment
  POM187915  Ageratina occidentalis Marcus E. Jones 1931-7-16 s.n. Humboldt Junction, East of Arcata. Comment
  UC165016  Ageratina occidentalis Joseph P. Tracy 1911-7-4 3300 Humboldt (tributary of Trinity River, Humboldt County) near its mouth Willow Creek 304 Comment
  RSA12441  Agoseris grandiflora C. B. Wolf 1934-7-1 5852 Humboldt Along Eel River and Redwood Highway, 1.2 mi. S of F. K. Lane Grove. 61 Comment
  UC1199116  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1930-7-27 8899 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  UC164893  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1909-7-31 3027 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC176416  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1912-7-31 3946 Humboldt near summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  UCD128605  Agoseris heterophylla K. Esau 1934-5-6 s.n. Humboldt above Fort Seward. 457 Comment
  RSA167315  Agoseris heterophylla Joseph P. Tracy 1950-7-6 19006 Humboldt On the Albee Road 2 miles south of Burr Valley 1159 Comment
  SEINET3134343  Agrostis J. B. Davy, W. C. Blasdale 1899-6-13 5521 Humboldt Near Pepperwood Comment
  UC186911  Agrostis alba J. P. Tracy 1902-7-4 1758 Humboldt Immediate vicinity of Eureka 0 Comment
  CHSC111332  Agrostis castellana Barbara L. Wilson; Nick Otting 2012-7-3 17134 Humboldt Dean Creek Resort between the Eel River and the Old Redwood Highway, west of Highway 101; UTM xone 10T, 430910 east, 443867 north. 76 Comment
Read comments
Nov 6 2015
  RSA152379  Agrostis densiflora Joseph P. Tracy 1936-6-8 14873 Humboldt Trinidad 6 Comment
  POM247142  Agrostis exarata H. E. Parks 1935-06 5607 Humboldt Spruce Cove, Trinidad. Comment
  SEINET200945  Agrostis exarata Joseph P. Tracy 1912-7-21 3785 Humboldt Alton. Northern Coast Region. 30 Comment
  UC1103373  Agrostis exarata J. P. Tracy 1900-9-9 953 Humboldt Yager Creek near Hydesville; Yager Creek 60 Comment
  UC186905  Agrostis exarata Joseph P. Tracy 1904-7-10 2119 Humboldt Eureka Northern Coast Region 0 Comment
  UCSB51224  Agrostis exarata Almanza, Ed 1976-7-15 Humboldt Big Lagoon Campground, Big Lagoon Comment
  CAS-BOT-BC139697  Agrostis gigantea Joseph P. Tracy 1932-8-21 10363 Humboldt North Coast Ranges. Three Cabins. On lower western foothills on Chaparral Mountain. 457 Comment
  HSC76547  Agrostis gigantea Teresa Prendusi 1981-7-23 341 Humboldt Near Black Mtn. 890 Comment
  RSA10065  Agrostis hallii Joseph P. Tracy 1929-7-4 8610 Humboldt French Camp Ridge 1067 Comment
  UC552750  Agrostis oregonensis Joseph P. Tracy 1934-7-13 13392 Humboldt Dows Prairie North Coast Ranges 60 Comment
  SACT000138  Agrostis palustris S. Smith, Malcolm Nobs 1949-8-3 Humboldt Borders of irrigation ditch Comment
  UC249863  Agrostis scabra Joseph P. Tracy 1924-8-31 6841 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 91 Comment
  CAS-BOT-BC138630  Agrostis stolonifera David D. Keck 1938-8-5 4771 Humboldt Big Lagoon. Comment
  SEINET200839 Image available Agrostis stolonifera Joseph P. Tracy 1909-7-11 3012 Humboldt Eureka 0 Comment
  SEINET7594529 Image available Aira caryophyllea H. E. Parks, S. T. Parks 1936-1 5850 Humboldt Spruce Cove, Trinidad. Comment
  CAS-BOT-BC138338  Aira caryophyllea var. caryophyllea Doris K. Kildale 1926-5-2 1890 Humboldt Willow Creek Flat. Trinity River Valley. 152 Comment
  HSC90692  Aira praecox Gail Newton 1982-5-5 3558 Humboldt Elk River Wildlife Area, Eureka. Comment
  UC1198269  Alisma plantago-aquatica Joseph P. Tracy 1930-10-12 9214 Humboldt Alton to Fortuna (on gravel bars); Eel River 15 Comment
  HSC37500  Alisma triviale J. D. Ackerman 1975-8-2 611 Humboldt Intersection of Indianola Cutoff and Hwy. 101, ca. half-way between Eureka and Arcata. Comment
  HSC2886  Alisma triviale Rollin Sparrowe 1962-5-16 23 Humboldt S of road Comment
  HSC34696  Alisma triviale Thomas W. Nelson 1974-9-12 1707 Humboldt KOA campground along E side of Hwy. 101, 3 mi. S of Arcata Comment
  SEINET12045750  Allium amplectens C. C. Harris, Harris, S. K. 1936-1 645 Humboldt at point where the road from Bridgeville to Dinsmore crosses the Little Van Duzen River 710 Comment
  HSC32146  Allium falcifolium D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5600 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC67187  Allium hoffmanii Thomas W. Nelson, James Nelson 1980-6-10 5423 Humboldt Along NE side of Red Mtn. 1433 Comment
  CAS-BOT-BC170944  Alnus rhombifolia Doris K. Kildale 1926-9-9 2686 Humboldt Little Van Duzen River on Bridgeville - Weaverville road 640 Comment
  JEPS58618  Alnus rhombifolia W. L. Jepson 1902-7-29 2123 Humboldt Supply Creek Hupa Valley 243 Comment
  RSA46862  Alnus rhombifolia Doris K. Kildale 1926-9-9 2686 Humboldt Little Van Dusen, near bridge on Bridgeville, Low Gap Road. 640 Comment
  UC1193074  Alnus rhombifolia R. E. Nelson 1950-8-31 154 Humboldt 3 mi nw Neafus Peak; Quadrangle 29D1 609 Comment
  HSC99634  Alnus rubra Will Ferrand 2002-4-27 28 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  SEINET8670754 Image available Alnus rubra W. J. Hess, Stoynoff, N 1995-1 7294 Humboldt Comment
  UCD170775  Alnus rubra Gordon Leppig 1998-3-25 724 Humboldt McKinleyville, Central Ave. South-bound lane near 101 junction. 42 Comment
  CAS-BOT-BC169378  Alnus viridis subsp. sinuata Joseph P. Tracy 1930-7-16 9080 Humboldt Cool damp place along stream. S Fork Mountain, near McKay Camp 1676 Comment
  POM160842  Alnus viridis subsp. sinuata Joseph P. Tracy 1919-9-18 5241 Humboldt Trinity Summit. 1829 Comment
  UC54760  Alnus viridis subsp. sinuata Joseph Burtt Davy and Walter C. Blasdale 1899-5 5778 Humboldt Trinity Summit North Coast Ranges (Mendocino, Humboldt, and Del Norte Counties) Comment
  UC1103312  Alopecurus geniculatus Joseph P. Tracy 1933-7-20 12802 Humboldt Arcata <Bottom> North Coast Ranges, Arcata <Bottom> 15 Comment
  SEINET11674220  Alopecurus geniculatus J. P. Tracy 1951-1 19524 Humboldt back of Everett Beck house (formerly George Fray) bed of former Goose Lake, Hydesville Comment
  UC132197  Amaranthus albus Joseph P. Tracy 1907-8-20 2598 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC166090  Ambrosia chamissonis J. P. Tracy 1901-8-7 1265 Humboldt at, opposite Eureka Samoa; Ocean Beach Comment
  UC418998  Amelanchier alnifolia var. semiintegrifolia H. E. Parks, J. P. Tracy 1925-6-25 3775 Humboldt Lawrence Creek Comment
  UC14217  Amelanchier utahensis Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  SD41378  Ammophila arenaria Edith A. Purer 1932-7-27 4157 Humboldt Samoa, sand dunes. Comment
  UC1198609  Anagallis arvensis Joseph P. Tracy 1948-9-20 18222 Humboldt Hoopa Valley, along Mill Creek Hoopa Valley, Mill Creek 91 Comment
  HSC67526  Anagallis arvensis J. P. Smith 1970-6-7 3806 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  UC54004  Anaphalis margaritacea Chesnut and Drew 1888-8-8 Humboldt Arcata Comment
  CAS-BOT-BC45136  Anaphalis margaritacea Doris K. Kildale 1925-8-17 1186 Humboldt Trinity Summit, Elk Horn Camp 1524 Comment
  HSC12550  Anaphalis margaritacea C. Kline 1970-11-15 71 Humboldt Clam Beach Lagoon Comment
  JEPS86125  Anemone deltoidea Wayne Roderick 1966-5-7 Humboldt ca. 5 mi. e. Carlotta Comment
  UC160912  Anemone oregana Joseph P. Tracy 1909-4-4 2949 Humboldt s foot of Humboldt Hill (near Buhne's Ranch, region about Humboldt Bay); North Coast Ranges 0 Comment
  UC582656  Angelica hendersonii Joseph P. Tracy 1936-10-24 15205 Humboldt Table Bluff 91 Comment
  CDA38222  Angelica hendersonii T. C. Fuller 1958-6-17 1718 Humboldt Maritime bluff above Oceanhouse, Cape Mendocino. 0 Comment
  UC1197376  Angelica hendersonii H. E. Parks and Joseph P. Tracy 1924-8-3 6740 Humboldt Northern Coast Ranges, Big Lagoon Big Lagoon; Northern Coast Ranges, Big Lagoon 152 Comment
  CAS-BOT-BC271492  Anisocarpus madioides Doris K. Kildale 1928-5-19 5118 Humboldt Chalk Mountain Comment
  HSC49963  Anisocarpus madioides Maralyn O'Meara 1974-7-11 541 Humboldt Kneeland; Barry Ridge Comment
  UC582647  Antennaria rosea Joseph P. Tracy 1935-7-24 14169 1/2 Humboldt Trinity Summit 1828 Comment
  SEINET200721 Image available Antennaria rosea J. P. Tracy 1939-8-6 16397 Humboldt Shore of Big Lagoon 3 Comment
  HSC41291  Antennaria suffrutescens Brad Klipfel 1974-7-27 489 Humboldt Horse Mtn. Comment
  SEINET2031154 Image available Anthemis cotula J. P. Tracy 1909-7-4 3011 Humboldt Immediate vicinity of Eureka Comment
  HSC90322  Anthoxanthum occidentale C. Wilson, P. Kittelson, M. Hardig 1992-5-2 61 Humboldt 50 m up dirt road E of Redwood Science Lab. 61 Comment
  CAS-BOT-BC137741  Anthoxanthum odoratum Harley P. Chandler 1901-5-1 1106 Humboldt North Coast Ranges. Humboldt Bay. 30 Comment
  HSC33768  Anthoxanthum odoratum Lon Hall 1975-5-24 377 Humboldt Samoa Dunes, off Samoa Blvd., across from the boat landing Comment
  HSC40341  Anthoxanthum odoratum Linda M. Barker 1976-4-30 1402 Humboldt 3 mi. W of Arcata Comment
  HSC89545  Anthoxanthum odoratum M. Roantree 1985-5-7 43 Humboldt SW side of Trinidad Head, along trail Comment
  RSA313192  Anthoxanthum odoratum Malcolm A. Nobs, S. Galen Smith 1949-8-3 1193 Humboldt Marsh and bog land at the southern outskirts of Eureka. Comment
  UC1196738  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1900-9-9 955 Humboldt near Hydesville (gravel bar of Yager Creek); Northern Coast Region, Yager Creek 60 Comment
  UC1400213  Apium graveolens Gary S. Lester 1973-12-2 60 Humboldt in the city of Arcata Arcata Comment
  HSC70343  Apocynum androsaemifolium M. A. Baker 1980-6-7 1850 Humboldt Near Ammon Creek 732 Comment
  UC1197614  Apocynum androsaemifolium Joseph P. Tracy 1912-7-27 3887 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC40992  Apocynum androsaemifolium Thomas W. Nelson, Jane P. Nelson 1977-9-3 3730 Humboldt N of pond above Alder Springs 1616 Comment
  POM287860  Apocynum androsaemifolium subsp. pumilum Lyman Benson 1929-7-14 s.n. Humboldt S. Fork Eel River Weott Ranger Station Comment
  HSC79437  Aquilegia formosa Kenneth Clark 1980-6-14 662 Humboldt Deadman's Gulch 46 Comment
  HSC18037  Aquilegia formosa var. formosa F. B. Plett 1963-5-11 45 Humboldt 1.5 mi. N of Trinidad on old Hwy. 101 Comment
  HSC57418  Arabis divaricarpa var. interposita G. L. Clifton, Griswold 1979-7-26 10181 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  HSC57443  Arabis glabra G. L. Clifton, Griswold 1979-7-26 10246 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  UC492237  Arabis glabra Joseph P. Tracy 1932-5-1 9860 Humboldt Redway Northern Coast Ranges 152 Comment
  HSC58191  Arabis holboellii var. retrofracta G. L. Clifton, Terry Griswold 1979-8-2 12287 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  RSA568502  Aralia californica Thekla Mohr 1919-07 s.n. Humboldt Eel River. Comment
  UC154135  Aralia californica P. E. Goddard 1901-7-12 78 Humboldt Hupa Comment
  RSA21581  Aralia californica C. B. Wolf 1937-9-8 s.n. Humboldt North Coast Range, Bull Creek- Petrolia Road, 12 mi W of Redwood Highway 457 Comment
  UC314608  Aralia californica Joseph P. Tracy 1923-9-16 6554 Humboldt Trinity R. Valley near mouth of S. Fork; Northern Coast Ranges 182 Comment
  JEPS66576  Arbutus menziesii W. L. Jepson 1902-7-10 2004 Humboldt South Fork Trinity River, Martin's Ranch, (Expedition) from Ukiah to the Hupa Indian Reservation South Fork Trinity River; , Martin's Ranch 396 Comment
  UC915722  Arbutus menziesii W. L. Jepson 1903-6-23 50 Humboldt near Briceland Comment
  UC1198124  Arceuthobium campylopodum Doris Kildale 1926-9-6 Humboldt Lasseck's Peak 1524 Comment
  UC1222871  Arctium minus Joseph P. Tracy 1948-9-20 18223 Humboldt halfway between Hoopa and Weitchpec Comment
  UC1225932  Arctostaphylos X media Joseph P. Tracy 1945-3-30 17501 Humboldt Eureka 45 Comment
  CAS-BOT-BC23751  Arctostaphylos columbiana Joseph P. Tracy 1934-7-2 13293 Humboldt Vicinity of Trinidad 60 Comment
  CAS-BOT-BC23760  Arctostaphylos columbiana Alice Eastwood; John Thomas Howell 1934-4-11 1326 Humboldt Patrick's Point Comment
  CAS-BOT-BC23768  Arctostaphylos columbiana Joseph P. Tracy 1935-2-9 13710 Humboldt Big Lagoon 30 Comment
  CAS-BOT-BC23786  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13134 Humboldt Vicinity of Trinidad 60 Comment
  CAS-BOT-BC23797  Arctostaphylos columbiana H. E. Parks 1931-12-1 4950 Humboldt Hobson's, Trinidad 60 Comment
  HSC7618  Arctostaphylos columbiana J. Pursell 1964-10-11 10114 Humboldt Big Lagoon Park, 1 mi. N of Big Lagoon school, approx. 200 yds. W of the road Comment
  JEPS19869  Arctostaphylos columbiana Joseph P. Tracy 1923-3-31 6168 Humboldt around Humboldt Bay; Northern Coast Region, Table Bluff 60 Comment
  RSA622679  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27677 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
  UC1198652  Arctostaphylos columbiana Joseph P. Tracy 1923-2-18 6143 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  UC673126  Arctostaphylos columbiana Joseph P. Tracy 1940-7-14 16688 Humboldt near KIngs Peak; Wilder Ridge 762 Comment
  RSA381132  Arctostaphylos columbiana var. columbiana Roman Gankin, W. Richard Hildreth 1967-10-26 1171 Humboldt 21.4 miles east of US 101 on Bald Hills Road from Orick. French Camp Ridge. Comment
  RSA252144  Arctostaphylos columbiana var. tracyi Gary D. Wallace 1974-12-22 1345 Humboldt Near coast N of Trinidad at the edge of the W part of Big Lagoon. 61 Comment
  UCD51037  Arctostaphylos glandulosa Joseph M. DiTomaso 1976-3-28 348 Humboldt West side of Lord Ellis summit on State Highway 299 between Arcata and Willow Creek. 762 Comment
  POM286175  Arctostaphylos glandulosa subsp. cushingiana Lyman Benson 1929-7-19 1592 Humboldt Dyerville to Matole River. Comment
  RSA632792  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27782 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  RSA632808  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27773 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
  UCD52072  Arctostaphylos manzanita Joseph P. Tracy 1940-7-14 16689 Humboldt Wilder Ridge (near Kings Peak). 762 Comment
  UCSB11765  Arctostaphylos manzanita Nelson, R. 1950-7-26 Humboldt 0.5 mile northwest of Neafus Peak 762 Comment
  CAS-BOT-BC24363  Arctostaphylos manzanita subsp. manzanita R. N. Raynor 1935-3-1 s.n. Humboldt Fort Seward. Comment
  UC1198680  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1930-6-15 8757 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC43989  Arctostaphylos uva-ursi C. B. Wolf 1931-8-30 2374 Humboldt Samoa, Humboldt Bay. 7 Comment
  CAS-BOT-BC47209  Arctostaphylos uva-ursi Doris K. Kildale 1926-6-18 2395 Humboldt Gold Bluffs. Comment
  SEINET11989104  Arctostaphylos uva-ursi R. Gankin, Hildreth, W. R. 1967-1 1149 Humboldt 1.7 mi S of Samoa, on Humboldt Peninsula Comment
  RSA89766  Arctostaphylos uva-ursi var. coactilis P. A. Munz 1954-7-25 19876 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  HSC63207  Arctostaphylos viscida M. A. Baker 1979-7-6 1009 Humboldt .6 k W of FS rd. 15N01 on rd. 12N16, toward Bald Mtn. Comment
  HSC73249  Arctostaphylos viscida M. A. Baker 1980-5-18 1313 Humboldt Near Black Mtn. 1006 Comment
  UCR64184  Arctotheca calendula T. C. Fuller, G. D. Barbe 1989-6-8 4321 Humboldt Larry Pries daily, 3.4 mi west of Main Street, on Centerville beach rd. Ferndale Comment
  POM232100  Armeria maritima subsp. californica I. L. Wiggins 1930-7-11 4683 Humboldt Near Samoa Comment
  HSC100712  Arnica amplexicaulis Carl C. Marshall Jun 1886 273 Humboldt Trail E of Hoopa. Comment
  CAS-BOT-BC82103  Arnica cernua Thomas Nelson 1974-5-30 1345 Humboldt along the Hoopa-Redwood Valley Road Comment
  UC302176  Arnica cernua Joseph P. Tracy 1926-5-2 7449 Humboldt near Ruby Creek; Northern Coast Ranges, Willow Creek Canyon 609 Comment
Read comments
Feb 27 2007
  SEINET11837502  Arnica cordifolia H. P. Chandler 1901-1 1400 Humboldt Klamath River 244 Comment
  CAS-BOT-BC82431  Arnica discoidea Doris K. Kildale 1927-7-3 3641 Humboldt Willow Creek Flat 152 Comment
  CAS-BOT-BC82427  Arnica discoidea Henry M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans Comment
  RSA167206  Arnica latifolia Joseph P. Tracy 1942-6-23 17236 Humboldt Near Box Camp 1463 Comment
  UC1199394  Artemisia douglasiana Joseph P. Tracy 1933-8-6 12946 Humboldt French Camp Ridge 1066 Comment
  UC169318  Artemisia douglasiana Joseph P. Tracy 1912-8-3 3976 Humboldt opposite Buck Mountain; Valley of Van Dusen River 762 Comment
  JEPS37015  Artemisia dracunculus W. L. Jepson 1921-9-11 9464 Humboldt 7 or 8 mi. s. Garberville (not far from Indian Creek (Devoy Flat) Redwood Flat, w. of S. Fork Eel); South Fork Eel River Comment
  UC249826  Artemisia suksdorfii Joseph P. Tracy 1924-8-10 6812 Humboldt Blue Slide on Van Duzen River 91 Comment
  HSC56089  Aruncus dioicus var. acuminatus G. L. Clifton, Griswold 1979-7-31 11781 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  CAS-BOT-BC453342  Aruncus dioicus var. vulgaris Doris K. Kildale 1928-6-24 7071 Humboldt Redwood Creek at Berry's 274 Comment
  RSA21567  Aruncus sylvester Doris Kildale Gillespie 1937-09 9368 Humboldt Humboldt Comment
  HSC64216  Asarum caudatum J. O. Sawyer, M. A. Ericksen 1979-6-23 3385 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  CAS-BOT-BC400532  Asarum caudatum L. R. Abrams 1922-6-25 8259 Humboldt North of the Mad River near Arcata Comment
  HSC65474  Asarum hartwegii Gail Newton 1980-6-24 560 Humboldt Near Ladder Rock 1570 Comment
  SEINET201000  Asclepias cordifolia Joseph P. Tracy 1911-7-9 3477 Humboldt West side of Trinity River near Willow Creek. 183 Comment
  CAS-BOT-BC65940  Aspidotis densa Harley P. Chandler 1901-6-1 1380 Humboldt Hupa Indian Reservation 152 Comment
  UC419051  Aspidotis densa J. P. Tracy and H. E. Parks 1930-9-15 763 Humboldt Kneeland; Bald Hills Comment
  UC1795051  Aspidotis densa Ruth Kirkpatrick 2003-8-2 1177 Humboldt Kneeland Airport, E-facing slope to E of runway Comment
  UCSB48538  Aster David Edwards 1974-8-12 90 Humboldt collected in the S side of 7th street, just W of its overpass of U. S. Highway 101 in Arcata 7th street, U. S. Highway 101 and Arcata 18 Comment
  RSA44410  Aster oregonensis H. M. Pollard 1947-8-30 s.n. Humboldt North road along Klamath River near Van Fleet Ranch, Orleans region. Comment
  RSA43677  Aster radulinus H. M. Pollard 1947-8-9 s.n. Humboldt South River Road, south of Orleans Comment
  RSA47181  Aster radulinus Doris K. Kildale 1925-8-21 1312 Humboldt Yager Comment
  SEINET10473646  Aster subspicatus Mary Susan Taylor 1982-10-24 Taylor 5175 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  HSC95164  Astragalus agnicidus Gordon Leppig 2003-7-10 2002 Humboldt Pacific Lumber Co. land 730 Comment
  HSC82034  Astragalus purshii var. lectulus Thomas W. Nelson, James Nelson 1980-6-10 5402 Humboldt Along Swayback Ridge 4-wheel drive road, 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  POM214878  Astragalus rattanii var. rattanii Joseph P. Tracy 1932-6-19 10245 Humboldt Buck Mountain, lower foothills of its northwest slope 762 Comment
  UC175638  Astragalus rattanii var. rattanii Joseph P. Tracy 1913-6-20 4241 Humboldt nw slope Buck Mountain (lower foothills); Northern Coast Ranges, lower foothills Buck Mountain 762 Comment
  UC33312  Astragalus rattanii var. rattanii W. C. Blasdale 1896-6-8 Humboldt Graham's Range Comment
  UC1222420  Astragalus umbraticus Joseph P. Tracy 1940-8-25 16706 Humboldt at Lake Prairie , at Lake Prairie (Bald Mountain) 1066 Comment
  UCD105332  Astragalus umbraticus Joseph P. Tracy 1940-8-25 16706 Humboldt Bald Mountain; at 'Lake Prairie'. 1066 Comment
  HSC3820  Asyneuma prenanthoides Paul Shields Aug 1955 Humboldt 3 mi. N of Weott Comment
  RSA413349  Athyrium filix-femina subsp. cyclosorum R. Whittaker, W. A. Niering 1963-6-14 491 Humboldt Humboldt Redwoods, Weott Comment
  HSC95880  Athyrium filix-femina var. cyclosorum Will Ferrand 2002-2-2 22 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  UC902198  Athyrium filix-femina var. cyclosorum Joseph P. Tracy 1949-8-26 18512 Humboldt ne of Hawkins Bar Happy Camp Mt; Trinity Summit Range 1280 Comment
  UC1198292  Athysanus pusillus Joseph P. Tracy 1922-4-30 6016 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC183747  Athysanus pusillus Joseph P. Tracy 1913-6-17 4170 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1524 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
  CDA23297  Atriplex patula var. obtusa Gordon Leppig 1999-10-25 1266 Humboldt Eureka, PALCO Marsh Comment
  POM318821  Atriplex rosea Patricia Wilder 1968-8-21 4404 Humboldt Northern coastal arm of Humboldt Bay, ca 2 miles SW of Samoa. Humboldt Bay drainage area. 5 Comment
  UC673039  Atriplex triangularis Harold E. Parks and Joseph P. Tracy 1934-10-13 11152 Humboldt Big Lagoon 3 Comment
  HSC9004  Avena barbata R. Spellenberg 1965-6-14 1124 Humboldt Along Barry Rd., 1 mi. from junction with Bridgeville Rd., Kneeland Prairie Comment
  HSC9031  Avena barbata Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  JEPS72923  Avena barbata Lincoln Constance 1934-6-18 901 Humboldt N. Dyerville Flat South Fork Eel River, Bull Creek Region (swamp border, near S. Fork R.R. sta. and P.O.) Comment
  HSC40410  Baccharis douglasii Thomas W. Nelson, James Nelson 1976-7-28 3061 Humboldt Beside SR 36 at Grizzly Creek Comment
  POM126120  Baccharis pilularis Joseph P. Tracy 1923-10-6 6565 Humboldt Eureka Comment
  RSA273344  Barbarea orthoceras M. A. Baker 1977-4-23 174 .5 Humboldt 2.5 miles South of Shelter Cove Road. South fork of Bear Creek at Wailaki Campground. 561 Comment
  UC492247  Barbarea orthoceras Joseph P. Tracy 1927-7-24 8292 Humboldt Mattole Valley 152 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
  UC1198850  Bensoniella oregona Mrs. R. D. Douglas 1920-6-26 Humboldt Murphy Meadow; on Bald Mt., Murphy Meadow 1066 Comment
  RSA125218  Bensoniella oregona S. Carlquist 1951-6-14 158 Humboldt Below Felt Plateau, on road to Snow Camp 1006 Comment
Read comments
Nov 8 2010
  RSA46859  Berberis aquifolium Doris K. Kildale 1926-6-27 s.n. Humboldt Little Van Duyen River on bridge on Bridgeville Red Bluff road. 640 Comment
  UCD39982  Berberis aquifolium var. repens Rodney Gale Myatt 1971-9-21 1186 Humboldt Near Orleans, northeast of Hoopa Reservation, and along Klamath River. 426 Comment
  CAS-BOT-BC75682  Berberis nervosa C. B. Wolf 1931-8-29 2372 Humboldt Near summit of Orick Hill on the road to Weitchpec. 304 Comment
  HSC35612  Berberis nervosa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2024 Humboldt Just E of Redwood National Park along Bald Hills Rd. Comment
  CAS-BOT-BC75796  Berberis pinnata Doris K. Kildale 1925-12-27 1452 Humboldt Kneeland. 762 Comment
  RSA246849  Berberis pinnata R. F. Thorne, P. Everett 1965-8-5 35141 Humboldt 5.2 miles N of junction of Horse Mt. and Shelter Cove Roads. 457 Comment
  HSC103115  Berberis repens M. Mesler 2010-9-4 841 Humboldt Along trail E603 (Salmon Summit traihead to Red Cap Lake), about 100 m SE of Baylor Camp. 1677 Comment
  HSC55339  Bistorta bistortoides Griswold, Butler 1979-7-12 7192 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC45419  Bistorta bistortoides Thomas W. Nelson, Jane P. Nelson 1977-7-4 3595 Humboldt Margin of pond above Alder Springs 1585 Comment
  CAS-BOT-BC66269  Blechnum spicant W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  CAS-BOT-BC66273  Blechnum spicant Volney Rattan 1878-1-1 s.n. Humboldt Mad River Comment
  UCSB8245  Blechnum spicant Robbins, G. 1936-8-1 Humboldt Near Strong's Station. Comment
  UC552303  Boechera subpinnatifida Joseph P. Tracy 1933-7-25 12878 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC7509  Bolboschoenus maritimus subsp. paludosus Paul Shields 1955-9-15 Humboldt 4 mi. NW of Arcata. Comment
  JEPS13526  Boschniakia strobilacea W. L. Jepson 1902-7-16 2052 Humboldt Trinity Summit. 2133 Comment
  UC1478440  Botrychium multifidum Keith Curry 1974-1 Humboldt 5 mi s Trinidad (roadside rest Hwy. 101) Comment
  HSC96373  Botrychium multifidum Gordon Leppig 1999-10-3 1256 Humboldt Big Lagoon on NE corner of fen 3 Comment
  CHSC33047  Boykinia occidentalis James. P. Smith 1973-1-1 6845 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Railroad right-of-way. Comment
  HSC20181  Boykinia occidentalis H. E. Parks, S. T. Parks Jun, Jul 1952 24451 Humboldt Spruce Cove, Trinidad 61 Comment
  UC1198853  Boykinia occidentalis Joseph P. Tracy 1927-6-19 8191 Humboldt Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  HSC37929  Brassica nigra Peter Sorensen 1976-6-14 Humboldt North Spit Comment
  HSC6582  Brassica rapa D. E. Anderson 1962-2-10 1922 Humboldt 1.5 mi. S of Trinidad Comment
  CAS-BOT-BC127681  Brickellia greenei Joseph P. Tracy 1934-9-5 13655 Humboldt Horse Mountain 1402 Comment
  HSC45221  Briza maxima M. Alcasas 1978-5-28 110 Humboldt E end of Myrtle Ave., Eureka 8 Comment
  HSC9087  Briza maxima T. M. Mingo May 1965 Humboldt 0.25 mi. N of intersection of Fairhaven Dr. and old Hwy. 101 Comment
  UCSB15651  Brodiaea coronaria Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  UCSB16626  Brodiaea elegans subsp. elegans Breedlove, Dennis 1961-7-4 Humboldt 10.9 miles west of Willow Greek on US299 822 Comment
  HSC81940  Brodiaea terrestris subsp. terrestris D. H. Norris 1985-5-30 Humboldt Near Whitethorn Comment
  BLMAR14  Bromus carinatus Brad Barr June, 1982 14 Humboldt King range, above randall creek on ridgetop Comment
  CAS-BOT-BC149566  Bromus carinatus var. carinatus Joseph P. Tracy 1935-5-16 13806 Humboldt Eureka. 60 Comment
  CAS-BOT-BC149568  Bromus carinatus var. carinatus Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  HSC99002  Bromus carinatus var. carinatus Cara Witte 2007-6-28 391 Humboldt Intersection of 6N08 (Friday Ridge Road) and 5N39. 1475 Comment
  UC1145160  Bromus carinatus var. carinatus Joseph P. Tracy 1950-6-15 18786 Humboldt 7 mi n of Harris (Mail Ridge); Mail Ridge 1036 Comment
  UC180492  Bromus carinatus var. carinatus Joseph P. Tracy 1913-6-22 4274 Humboldt opposite Buck Mountain (in Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  HSC102641  Bromus carinatus var. marginatus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1625 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC102946  Bromus diandrus J. P. Smith 2009-5-30 12599 Humboldt Arcata. Near intersection of Valley West and Giuntoli Road Comment
  HSC9279  Bromus diandrus H. S. Haskell 1966-4-23 23 Humboldt Near Samoa. Comment
  UCD58512  Bromus diandrus Linda M. Barker 1976-4-30 1403 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC104041  Bromus hordeaceus C. Reynolds 2015-4-28 39 Humboldt Along trail through Arcata Marsh, near Interpretive Center 5 Comment
  HSC9173  Bromus hordeaceus C. S. Chavez 1965-3-28 14 Humboldt 1 mi. S of Samoa on Samoa Rd. Comment
  RSA34280  Bromus maritimus L. Larsen 1935-5-22 s.n. Humboldt Somoa [Samoa] Comment
  CAS-BOT-BC161605  Bromus sterilis Joseph P. Tracy 1933-6-13 12601 Humboldt North Coast Ranges. Bair's Ranch on Redwood Creek. 914 Comment
  UCD59692  Bromus sterilis A. H. Murphy 1951-4-19 10 Humboldt Tooby and Prior Ranch, 2 miles south of Blocksburg. Comment
  UC1145178  Bromus tectorum Joseph P. Tracy 1942-5-16 17330 Humboldt between Miranda and Garberville 152 Comment
  UC167232  Bromus vulgaris Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5363 Humboldt near Harris (North Coast Ranges); North Coast Ranges Comment
  UC176583  Bromus vulgaris J. P. Tracy 1900-5-28 807 Humboldt immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC36862  Cakile edentula var. edentula Doris K. Kildale 1926-7-14 2375 Humboldt Trinidad Beach. Comment
  CAS-BOT-BC36864  Cakile edentula var. edentula Malcom A. Nobs; Stanley Galen [S. Galen] Smith 1949-8-11 1337 Humboldt At easten shore of Stone Lagoon. Comment
  RSA10029  Calamagrostis canadensis Joseph P. Tracy 1932-7-14 10553 Humboldt Klamath Mountains; Trinity Summit. Wet Meadow at Corral Prairie 0 Comment
  CAS-BOT-BC185236  Calamagrostis koelerioides Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mountain. 1828 Comment
  BLMAR27  Calamagrostis nutkaensis Brad Barr June, 1982 27 Humboldt King range, on edge of high bench above light house Comment
  HSC26298  Calandrinia ciliata T. O. Osborne 1970-6-18 69 Humboldt Green Rock, 1-5/8 mi. N, 3/4 mi. W of Trinidad Lighthouse. Comment
  HSC78988  Calandrinia ciliata L. P. Janeway 1984-4-11 727 Humboldt N Spit of Humboldt Bay, NW of the boat ramp and N of the Coast Guard Station 5 Comment
  UCR199655  Callitriche heterophylla subsp. bolanderi R. F. Thorne, Percy C. Everett 1965-8-9 35345 Humboldt Northwestern; Outer North Coastal region, along Hwy 101 about 3 miles N of Eureka 2 Comment
  HSC98087  Callitriche heterophylla var. bolanderi Cara Witte 2007-7-11 479 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1391 Comment
  RSA729025  Callitriche heterophylla var. bolanderi R. F. Thorne, P. C. Everett 1965-8-9 35323 Humboldt Clam Beach County Park: along highway. 3 Comment
  UC1103691  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1913-5-11 4073 Humboldt Eureka Northern Coast Region (at Stephen Hill place) 0 Comment
  UC1103687  Callitriche marginata Joseph P. Tracy 1921-4-24 5436 Humboldt Phillipsville Flat, South Fork of Eel River. Northern Coast Ranges. 91 Comment
  HSC57885  Calocedrus decurrens Overton, Butler 1979-7-31 11434 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC58323  Calocedrus decurrens Overton, Butler 1979-8-2 12620 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 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
  HSC34998  Calochortus tolmiei Thomas W. Nelson 1975-5-24 1879 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC38517  Calochortus tolmiei D. E. Anderson, J. P. Smith 1971-6-18 - 1082 Humboldt Horse Mtn. Comment
  CAS-BOT-BC494361  Calochortus tolmiei Volney Rattan 1879-1-1 s.n. Humboldt Ferndale Comment
  CAS-BOT-BC494365  Calochortus tolmiei H. C. Cantelow 1941-4-26 3949 Humboldt Rd. to Cape Mendocimo 12 mi. S.W. of Ferndale. Comment
  SEINET6879028  Calochortus tolmiei W. P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie, about 4 miles southeast of Kneeland. Comment
  UC1222547  Calochortus vestae Joseph P. Tracy 1950-6-23 18868 Humboldt 3 mi ne Alderpoint; Dobbyn Creek 213 Comment
  HSC55997  Caltha leptosepala Overton, Butler 1979-7-31 11439 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CAS-BOT-BC273312  Calycadenia fremontii L. R. Abrams 1918-6-16 7133 Humboldt Willow Creek Comment
  UC195065  Calycadenia truncata Joseph P. Tracy 1916-9-5 4755 Humboldt head of Canoe Creek Northern Coast Ranges, Grasshopper Ridge 609 Comment
  HSC16574  Calypso bulbosa R.. A. Rasp 1964-5-20 42 Humboldt 4 mi. W of Arcata off Lanphere Rd. on Lanphere ranch Comment
  UC1196471  Calypso bulbosa J. P. Tracy 1901-4-26 1041 Humboldt immediate vicinity of Eureka (Humboldt Hill); Humboldt Hill 0 Comment
  HSC59490  Calypso bulbosa M. A. Ericksen 1979-4-28 219 Humboldt Roadside leading to Camp Bouer, Korbel. Comment
  HSC65202  Calypso bulbosa T. Jimerson, J. Pageau 1979-5-1 446 Humboldt On FS 6N34C, Orleans Ranger District, Orleans Comment
  UC1196479  Calypso bulbosa Joseph P. Tracy 1913-6-25 4342 Humboldt opposite Buck Mountain (in Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  UC1198376  Calyptridium monospermum Joseph P. Tracy 1933-7-11 12704 Humboldt Grouse Mountain 1524 Comment
  UC562487  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1933-8-30 13006 Humboldt Horse Mountain , Horse Mountain (Northern Coast Ranges) 1310 Comment
  HSC49802  Calystegia soldanella R. York 1979-5-18 295 Humboldt Stabilized dunes opposite the Louisiana Pacific mill in Samoa Comment
  RSA21032  Calystegia soldanella C. B. Wolf 1937-6-18 8902 Humboldt Centerville Beach. 3 Comment
  UC153969  Camassia quamash J. P. Tracy 1910-5-15 3135 Humboldt immediate vicinity of Eureka 0 Comment
  UC421786  Camassia quamash P. E. Goddard 1906-6 691 Humboldt Lasseck Peak Comment
  HSC49511  Camissonia cheiranthifolia R. York 1979-5-18 293 Humboldt Stabilized dunes opposite the Louisiana Pacific mill in Samoa Comment
  HSC45467  Camissonia cheiranthifolia subsp. cheiranthifolia Thomas W. Nelson, James Nelson 1978-9-28 4554 Humboldt NW of Samoa Comment
  CAS-BOT-BC160243  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Ira L. Wiggins 1930-7-7 4670 Humboldt Near Samoa Comment
  HSC35938  Campanula scouleri Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2031 Humboldt French Camp, Bald Hills. Comment
  UC492256  Cardamine angulata Joseph P. Tracy 1928-4-29 8425 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  UC162969  Cardamine breweri J. P. Tracy 1905-4-23 2169 Humboldt immediate vicinity Eureka; vicinity Eureka 0 Comment
  CAS-BOT-BC37433  Cardamine californica Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta. Comment
  UC1199188  Cardamine californica Joseph P. Tracy 1918-4-21 4878 Humboldt on road to Kneeland Prairie (around Humboldt Bay); Northern Coast Ranges, around Humboldt Bay 152 Comment
  CHSC77460  Cardamine californica var. sinuata Vernon H. Oswald 2000-4-3 9909 Humboldt Trail from County Parking Lot to headlands at Elk Head northwest of Trinidad. 24 Comment
  CAS-BOT-BC37895  Cardamine oligosperma Duart V. Brown 1942-5-11 2871 Humboldt Three miles east of East Fork of Willow Creek. Comment
  HSC6640  Cardamine oligosperma John A. Dubois 1962-5-12 4 Humboldt 20 mi. E of Arcata Comment
  UC275269  Cardamine oligosperma Joseph P. Tracy 1923-4-15 6183 Humboldt at Berry's Northern Coast Ranges, , at Berry's (Redwood Creek) 274 Comment
  CAS-BOT-BC37894  Cardamine oligosperma Duart V. Brown 1947-3-27 16 Humboldt Near Tectah Creek, Klamath River. Comment
  HSC26336  Cardamine oligosperma Thomas W. Nelson 1971-3-30 361 Humboldt Beside Williams Creek near Ferndale Comment
  HSC6649  Cardamine oligosperma W. F. Nickel 1965-3-13 Humboldt 10 mi. W of Prairie Creek State Park, 0.25 mi. S of Fern Canyon on road to Fern Canyon Comment
  HSC79513  Cardamine oligosperma Kenneth Clark 1980-3-2 512 Humboldt Middle alluvial terrace, Dead Man's Gulch 37 Comment
  CAS-BOT-BC384761  Cardionema ramosissimum Milo S. Baker 1927-8-16 2445 b Humboldt Samoa Comment
  CAS-BOT-BC384765  Cardionema ramosissimum Alice Eastwood 1907-5-15 s.n. Humboldt Samoa Comment
  UC668108  Cardionema ramosissimum Joseph P. Tracy 1933-8-22 12993 Humboldt mouth of Eel R. 3 Comment
  HSC70474  Carex aquatilis var. dives J. P. Tracy 1912-6-16 3702 Humboldt Hookton, around Humboldt Bay 0 Comment
  UC1586919  Carex arcta Juha Pykala and D. H. Norris 1987-6-5 1360 Humboldt e Maple Creek (se of Snow Camp Mountain, upper course of Redwood Creek); Redwood Creek 1100 Comment
  JEPS79834  Carex barbarae Joseph P. Tracy 1932-6-14 10152 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  SEINET200965  Carex bolanderi Joseph P. Tracy 1914-7-5 4549 Humboldt Northern Coast Ranges Bald Mountain between High Prairie and Snow Camp. 1067 Comment
  UC249760  Carex bolanderi Joseph P. Tracy 1923-6-20 6332 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley 304 Comment
  HSC44057  Carex bolanderi Thomas W. Nelson, Jane P. Nelson 1977-7-1 3559 Humboldt Along Blanket Creek 1494 Comment
  LA103752  Carex buxbaumii Robert F. Thorne; P. C. Everett 1965-8-7 35197 Humboldt Big Lagoon 1 Comment
  HSC95435  Carex cusickii Gordon Leppig 2001-6-16 1569 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  CAS-BOT-BC34982  Carex densa Joseph Prince Tracy 1938-6-9 15877 Humboldt Dobbyn Creek. 152 Comment
  UC303071  Carex densa Joseph P. Tracy 1912-7-31 3906 Humboldt on nw slope of Buck Mountain Northern Coast Ranges, Burr Valley, Buck Mountain 1066 Comment
  JEPS113012  Carex deweyana subsp. leptopoda Dean W. Taylor 1991-8-15 12280 B Humboldt Snow Camp Lake 1310 Comment
Read comments
Apr 8 2012
  JEPS109270  Carex diandra D. W. Taylor 2004-6-23 19127 Humboldt Pond on the divide between Frost Creek and Martin Creek, about 1 air mile e of the Alderpoint road. Comment
  RSA246876  Carex echinata subsp. phyllomanica Robert F. Thorne, Percy C. Everett 1965-8-7 35188 Humboldt Big Lagoon. 2 Comment
  CAS-BOT-BC19968  Carex exsiccata Milo S. Baker 1927-8-21 24706 Humboldt Near Bald Mountain. 914 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
  CHSC85576  Carex fracta L. P. Janeway 2003-7-30 7942 Humboldt High North Coast Ranges. On northeast side of Titlow Hill Road, across form a small pond, on the map but un-named, 1.1 km south of Cold Spring. 1426 Comment
  CHSC45238  Carex geyeri L. P. Janeway 1984-6-17 848 Humboldt Titlow Hill Rd at turn to Horse Mtn. 1420 Comment
  CAS-BOT-BC20878  Carex globosa Harold Ernest Parks; Joseph Prince Tracy 1942-5-16 11556 Humboldt Vicinity of Garberville. 152 Comment
  UC197229  Carex gynodynama Joseph P. Tracy 1906-4-29 2430 Humboldt Northern Coast Region, south slope of Humboldt Hill. Comment
  UC303151  Carex gynodynama Joseph P. Tracy 1925-5-10 6962 Humboldt Hydesiville. Comment
  CHSC43908  Carex hendersonii L. P. Janeway 1984-5-27 836 Humboldt Ca 1 mi east of Redway, along Redwood Cr. 91 Comment
  JEPS75426  Carex hendersonii W. L. Jepson 1932-8-2 16474 Humboldt Deer-foot Flat Dyerville, Bull Creek, Deer-foot Flat 88 Comment
  RSA362584  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Bull Creek, at South Fork of the Eel River Comment
  UC562728  Carex hendersonii Joseph P. Tracy 1927-5-30 8080 Humboldt near Myers; North Coast Ranges, South Fork of Eel River 91 Comment
  HSC102204  Carex hoodii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1119 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC7792  Carex laeviculmis Joseph Prince Tracy 1930-7-16 8985 Humboldt South Fork Mountain. At McKay Camp. 1676 Comment
  HSC102219  Carex laeviculmis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1135 Humboldt Patterson Meadows 1555 Comment
  CHSC90274  Carex lenticularis var. impressa Thomas W. Nelson; Jane P. Nelson 1987-6-11 8598 Humboldt North Coast Ranges. Box Spring at Box Camp. Along trail to North Trinity Mountain. 1524 Comment
  UC562436  Carex lenticularis var. impressa Joseph P. Tracy 1932-7-14 10554 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC61630  Carex lenticularis var. lipocarpa Ruby Van Deventer 1959-6-20 Humboldt Humboldt-Del Norte county line, Onion Lake 1220 Comment
  SEINET10710157  Carex leptopoda David Castaner 1984-5-28 Castaner 8065 Humboldt Patrick State Park Redwood Forest area. Comment
  UC1133402  Carex lyngbyei H. S. Yates 1936-6-23 5861 Humboldt 1 mi w Bayside; Eureka Quadrangle 0 Comment
  HSC98991  Carex multicaulis Cara Witte 2008-6-13 718 Humboldt Forest Service Road 4N32. 0.5 mi. N of intersection with Forest Service Road 4N32B. 1417 Comment
  CAS-BOT-BC119546  Carex nudata A. A. Heller 1923-7-10 13795 Humboldt Along the Eel River between Scotia and Pepperwood Comment
  CAS-BOT-BC119548  Carex nudata A. A. Heller 1923-7-10 13797 Humboldt Along the Eel River between Scotia and Pepperwood Comment
  CHSC40163  Carex nudata L. P. Janeway 1984-4-5 755 Humboldt Along the west edge of Trinity River near the Willow Creek airstrip. 137 Comment
  SEINET11632152  Carex nudata H. P. Chandler 1901-1 1235 Humboldt Redwood Belt, North Coast Ranges 91 Comment
  UCD140704  Carex obnupta Linda M. Barker 1976-4-30 1421 Humboldt 3 miles west of Arcata. 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
  SEINET7569467 Image available Carex obnupta David Castaner 1984-5-28 8064 Humboldt Patrick State Park, Redwood Forest area. Comment
  UC249734  Carex obnupta Joseph P. Tracy 1923-9-2 6541 Humboldt McClellan Mt. Northern Coast Ranges 914 Comment
  CAS-BOT-BC119269  Carex ovalis Alice Eastwood; John Thomas Howell 1937-6-23 4830 Humboldt Near Yager Comment
  CAS-BOT-BC119243  Carex pachystachya Joseph Prince Tracy 1939-7-9 16342 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC119223  Carex pachystachya Joseph Prince Tracy 1928-6-24 8465 Humboldt Valley of South Yager Creek. 762 Comment
  HSC45475  Carex pachystachya Thomas W. Nelson, Jane P. Nelson 1978-7-2 4407 Humboldt Along margin of Lost Lake 1433 Comment
  HSC48038  Carex pachystachya D. H. Norris 1972-6-26 23008 Humboldt Along Grouse Mtn. Rd. about 3 mi. from intersection with Horse Mtn. Rd. Comment
  SEINET10817662  Carex pachystachya Lawrence P. Janeway 1984-6-17 Janeway 847 Humboldt Willow Creek quad (15'). T6N, R4E, NW1/4 of sec. 33. Damp drainage along cutbank of Titlow Hill Rd at turn to Horse Mtn. Serpentine in jeffrey pine forest. 1420 Comment
  RSA246858  Carex pansa Robert F. Thorne, Percy C. Everett 1965-8-5 35165 Humboldt Samoa Dunes. 3 Comment
  UCSC000108  Carex pansa C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  HSC104335  Carex serratodens James Regan, Humboldt Redwood Co., LLC Jun 2011 32 Humboldt Kneeland, near Kneeland Airport 854 Comment
  CAS-BOT-BC115570  Carex tumulicola Alice Eastwood; John Thomas Howell 1937-6-23 4848 Humboldt Kneeland Comment
  UC194818  Carex unilateralis J. P. Tracy 1912-7-21 3783 Humboldt Alton; ; Alton, Humboldt Co. 30 Comment
  UC1103081  Carex unilateralis Joseph P. Tracy 1938-6-15 15932 Humboldt Fortuna 30 Comment
  CAS-BOT-BC115286  Carex utriculata Joseph Prince Tracy 1932-7-14 10563 Humboldt Trinity Summit, Corral Prairie in wet meadow. Comment
  CHSC90267  Carex utriculata Thomas W. Nelson; Jane P. Nelson 1987-6-11 8600 Humboldt North Coast Ranges. Box Spring at Box Camp. Along trail to North Trinity Mountain. 1524 Comment
  UC1103618  Carex vesicaria Joseph P. Tracy 1937-7-29 15693 Humboldt McKay Camp South Fork Mountain 1676 Comment
  HSC2869  Carpobrotus chilensis D. E. Anderson 1961-9-2 1767 Humboldt 3 mi. S of Cape Mendocino Comment
  HSC79490  Carpobrotus chilensis Kenneth Clark 1980-4-18 574 Humboldt On lowest alluvial terrace of Dead's Man Gulch. 3 Comment
  CAS-BOT-BC249129  Castilleja affinis Doris K. Kildale 1926-6-8 2130 Humboldt Bug Creek 792 Comment
  CAS-BOT-BC249132  Castilleja affinis Alice Eastwood; John Thomas Howell 1937-6-23 4837 Humboldt 11 miles from Kneeland on road to Yager Comment
  JEPS35841  Castilleja affinis subsp. litoralis Rimo Bacigalupi, and L. R. Heckard 1964-8-2 8987 Humboldt Trinidad Head, just below lighthouse (above fog horn) Trinidad Head Comment
  UC147876  Castilleja affinis subsp. litoralis J. P. Tracy 1900-6-25 864 Humboldt immediate vicinity Eureka 0 Comment
  RSA33409  Castilleja ambigua subsp. humboldtiensis Doris K. Kildale 1926-6-25 2171 Humboldt Big Lagoon. Comment
  JEPS8683  Castilleja applegatei subsp. martinii Joseph P. Tracy 1927-5-14 8001 Humboldt near South Fork; Trinity River Valley 182 Comment
  HSC56005  Castilleja arachnoidea Overton, Butler 1979-7-31 11467 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC56028  Castilleja arachnoidea G. L. Clifton, Griswold 1979-7-31 11570 Humboldt Near Trinity Summit Guard Station, close to Hoopa 1884 Comment
  HSC56074  Castilleja arachnoidea G. L. Clifton, Griswold 1979-7-31 11750 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC20841  Castilleja exserta subsp. latifolia Rollin Sparrowe 1962-5-7 20 Humboldt Comment
  HSC56127  Castilleja miniata G. L. Clifton, Griswold 1979-8-1 11925 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  UC1196861  Castilleja miniata Joseph P. Tracy 1912-7-31 3950 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  UC213503  Castilleja miniata Joseph P. Tracy 1919-9-18 5228 Humboldt Trinity Summit; Northern Coast Ranges 1828 Comment
  CAS-BOT-BC244881  Castilleja miniata Milo S. Baker 1927-8-21 2486 a Humboldt Vicinity of Bald Mt. 914 Comment
  HSC70292  Castilleja pruinosa Gail Newton 1980-7-22 1671 Humboldt Near Devils Backbone 1554 Comment
  UC582476  Castilleja pruinosa Joseph P. Tracy 1933-7-11 12674 Humboldt Horse Mountain 1432 Comment
  HSC20583  Castilleja pruinosa D. E. Anderson 1965-6-1 3764 Humboldt Horse Mountain, W facing slope 1220 Comment
  UC902253  Castilleja pruinosa Joseph P. Tracy 1949-6-25 18341 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  JEPS25752  Castilleja rubicundula subsp. lithospermoides Joseph P. Tracy 1908-6 2849 Humboldt opposite Buck Mountain (valley of Van Duzen River); Northern Coast Ranges 762 Comment
  HSC45083  Caulanthus lasiophyllus R. Sutherland 1978-4-23 3 .23478 Humboldt Head of Kinsey (Fraser) Ridge 716 Comment
  UC1502106  Ceanothus R. Sutherland 1975-5-13 2 G.13 75 Humboldt Pt. Delgada Quad. 509 Comment
  UC1502122  Ceanothus R. Sutherland 1976-4-24 2 Humboldt Garberville 518 Comment
  HSC41322  Ceanothus arcuatus Brad Klipfel 1974-9-2 525 Humboldt Horse Mtn. Comment
  SEINET10805177  Ceanothus cuneatus var. cuneatus Dylan O. Burge 2009-5-11 Burge 1154 c Humboldt Willow Creek watershed, north-west slope of Brush Mountain, west of entrance to C.R.R. Brown and Sons Quarry, roadside on SR 299, 6.8 road miles (10.9 km) east of Berry Summit, 4.0 km 260 deg. (True) WSW of Willow Creek. 410 Comment
  UCD112128  Ceanothus foliosus R. N. Raynor 1935-5-22 s.n. Humboldt Fort Seward. Comment
  HSC37603  Ceanothus foliosus var. foliosus R. Sutherland 1975-5-13 15 .13575 Humboldt Brushy flat 509 Comment
  JEPS42112  Ceanothus integerrimus Chesnut and Drew 1888-7-9 Humboldt Kneeland Prairie Comment
  UC1198005  Ceanothus integerrimus Joseph P. Tracy 1934-4-15 13181 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC1198007  Ceanothus integerrimus Joseph P. Tracy 1935-5-25 13878 Humboldt Fort Seward 106 Comment
  UCR270274  Ceanothus integerrimus John F. Emmel 2003-7-30 1800 Humboldt near southeast boundary of Redwood National Park, Bald Hills Road, 19.5 road miles SE of Hwy 101 960 Comment
  HSC18308  Ceanothus parryi P. J. Zinke 161 Humboldt Divide between Mill Creek and S Fork of Eel River, 2 mi S of Myer's Flat 305 Comment
  JEPS42371  Ceanothus parryi W. L. Jepson 1902-6-20 1906 Humboldt s Camp Grant (Hubbard's Station) 243 Comment
  HSC43186  Ceanothus pumilus R. Sutherland 1976-4-17 3 .17476 Humboldt 549 Comment
  CAS-BOT-BC52216  Ceanothus thyrsiflorus Doris K. Kildale 1926-4-11 1753 Humboldt Blue Slide in the Van Duzen River Comment
  CAS-BOT-BC52221  Ceanothus thyrsiflorus Doris K. Kildale 1926-6-28 2183 Humboldt Bluffs at Big Lagoon Comment
  CAS-BOT-BC52998  Ceanothus thyrsiflorus Carl B. Wolf 1927-8-22 806 Humboldt 1 mile south of Orick, along the hills near the ocean. Comment
  HSC43193  Ceanothus thyrsiflorus R. Sutherland 1975-5-28 0 .28575 Humboldt N Fork of Horse Mtn. Creek 427 Comment
  RSA25754  Ceanothus thyrsiflorus Carl B. Wolf 1941-7-28 11089 Humboldt Summit of Trinidad Head. 46 Comment
  UC1193280  Ceanothus thyrsiflorus R. H. Neuns 1950-10-17 142 Humboldt Bear Creek Road 6 mi n Shelter Cove; Quad. 28D4, Bear Creek Rd, n of Shelter Cove 609 Comment
  SBBG116555  Ceanothus thyrsiflorus var. thyrsiflorus D. H. Wilken 2003-7-22 16176 Humboldt near Windy Nip Gap, Mattole Rd, 1.5 km SW of Cathy's Pk 670 Comment
  HSC37062  Ceanothus velutinus R. Sutherland 1975-5-30 1 .30575 Humboldt 320 Comment
  CDA35602  Ceanothus velutinus T. C. Fuller, T. Gallion 1959-7-23 2817 Humboldt Red Gap Road, 3 miles east of Hoopa. 0 Comment
  CDA39219  Centaurea maculosa Weylan Shaw 2013-8-2 PDR# 120 P06003643 Humboldt Vicinity of Blue Lake, near the Mad River. Comment
  CDA7305  Centaurea nigra E. C. Whitney 1968-9-6 Humboldt Holmes Flat. Rutledge property. 0 Comment
  UC153952  Centaurium davyi Joseph P. Tracy 1907-7-4 2585 Humboldt 0.5 mi n mouth of Little River; Northern Coast Ranges 15 Comment
  SEINET202640  Centaurium erythraea Unknown 1954-8-10 4755 Humboldt Along US Highway 101, one mile south of Garberville. 213 Comment
  UC1198631  Centaurium muehlenbergii Joseph P. Tracy 1918-7-1 4965 Humboldt from South Fork to Scotia (Holmes Flat, along Eel River); Northern Coast Ranges, Eel River, Holmes Flat 60 Comment
  HSC62760  Centranthus ruber J. M. DiTomaso 1979-4-2 853 Humboldt Arcata, Fickle Hill Rd. Comment
  UC1198614  Centunculus minimus Joseph P. Tracy 1934-6-23 13254 1/2 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  UC154023  Centunculus minimus J. P. Tracy 1903-8-9 1943 Humboldt immediate vicinity of Eureka 0 Comment
  UC203958  Centunculus minimus Joseph P. Tracy 1918-7-5 5019 Humboldt Northern Coast Ranges, White Thorn Valley White Thorn Valley; Northern Coast Ranges, White Thorn Valley 304 Comment
  UC14951  Cephalanthera austiniae Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5625 Humboldt Bald Mt. Comment
  UC429101  Cephalanthera austiniae P. E. Goddard 1906-6 693 Humboldt Blocksburg Comment
  JEPS64313  Cephalanthera austiniae W. L. Jepson 1902-7-14 2027 Humboldt Mud Spring to Summit Trinity Summit 1219 Comment
  RSA436984  Cephalanthera austiniae Gary D. Wallace 1973-7-11 1250 Humboldt Eastern part of Prairie Creek Redwoods State Park 427 Comment
  HSC45053  Cerastium arvense R. Sutherland 1978-4-24 11 .24478 Humboldt Kinsey Ridge, gravel slide of road cut 323 Comment
  RSA168880  Cerastium arvense subsp. maximum Joseph P. Tracy 1950-6-15 18820 Humboldt Mail Ridge, north of Harris 7 miles Comment
  HSC90487  Cerastium glomeratum Jean Hanson 1980-4-12 35 Humboldt Eureka, Indian Island in Humboldt Bay. W end of island. Comment
  SFV18532  Cerastium glomeratum H. Barnes 2002-5-4 39 Humboldt McKinleyville. Hiller Park. Hammond Trail, 0.2 km north from parking lot. 25 Comment
  JEPS51355  Cerastium viride Lincoln Constance 1934-6-3 805 Humboldt on Redwood Hwy. 1 mi. n. Dyerville (rd. from High Rock to Horse Prairie); S. Fork Eel R., Bull Creek Region Comment
  HSC100415  Cerastium viscosum Carl C. Marshall Apr 1886 176 Humboldt Everywhere. Comment
  HSC100514  Cercis occidentalis Carl C. Marshall Apr 1887 384 Humboldt Hoopa Valley. Comment
  HSC31807  Cercis occidentalis Steve Selva, Roger Jensen 1974-8-27 81 Humboldt Along Hwy. 299 at Willow Creek Comment
  CAS-BOT-BC276488  Chaenactis douglasii var. douglasii Joseph P. Tracy 1932-7-12 10462 Humboldt Trinity Summit. Head of Brett Hole 1828 Comment
  HSC57698  Chaenactis douglasii var. douglasii G. L. Clifton, Griswold 1979-7-25 10927 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  CAS-BOT-BC85658  Chamaecyparis lawsoniana L. R. Abrams 1918-6-15 7107 Humboldt Unspecified 1371 Comment
  HSC8035  Chamaesyce maculata D. E. Anderson 1963-9-21 2840 Humboldt 0.5 mi E of Willow Creek Comment
  UC164837  Chamaesyce serpyllifolia Joseph P. Tracy 1911-7-9 3470 Humboldt near mouth Willow Creek; Valley of Trinity River 152 Comment
  HSC26872  Chamerion angustifolium subsp. circumvagum Clifton Raymond Chesbrough 1973-6-19 97 Humboldt 1/2 mi. N of College Cove along the coast Comment
  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
  HSC55122  Chamerion angustifolium subsp. circumvagum G. L. Clifton, Griswold 1979-8-1 11922 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  UC535749  Chamerion angustifolium subsp. circumvagum Eleanor Armstrong 1934-8-15 1146 Humboldt near road Richardson Grove 121 Comment
  UCSB4328  Chamerion angustifolium subsp. circumvagum Robbins, G. 1936-8-1 Humboldt Roadside between Carlotta and Strongs Station Comment
  HSC76323  Cheilanthes gracillima Denis Kearns 1981-7-21 304 Humboldt Near Whiteys Peak 1585 Comment
  HSC98979  Cheilanthes gracillima Cara Witte 2008-5-26 656 Humboldt 3/4 mile south of Titlow Hill. 1422 Comment
  JEPS59740  Chenopodium botrys Lincoln Constance 1934-5-27 690 Humboldt Dyerville bridge South Fork Eel River, Bull Creek Region (s end, gravel bar of river) 45 Comment
  POM188634  Chenopodium botrys Marcus E. Jones 1931-7-16 28870 Humboldt Junction, East of Arcata Comment
  RSA478469  Chenopodium botrys M. B. Dunkle 1936-8-22 4860 Humboldt Williams Grove, Eel River. 213 Comment
  HSC40249  Chenopodium polyspermum Linda M. Barker 1976-8-24 1680 Humboldt 3 mi. W of Arcata Comment
  RSA44503  Chenopodium pumilio H. M. Pollard 1947-8-31 s.n. Humboldt Orleans Hotel grounds, Orleans. Comment
  SD40327  Chenopodium strictum var. glaucophyllum Edith A. Purer 1932-7-30 4670 Humboldt South of Orick Comment
  HSC76590  Chimaphila menziesii Denis Kearns 1981-7-24 448 Humboldt Near Whiteys Peak. 1768 Comment
  HSC48861  Chimaphila umbellata Brad Klipfel 1973-7-31 243 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC76593  Chimaphila umbellata Teresa Prendusi 1981-7-9 231 Humboldt Near Cedar Camp 1256 Comment
  RSA43688  Chrysanthemum parthenium H. M. Pollard 1947-8-28 s.n. Humboldt Roadside near Perch Creek, Orleans region Comment
  RSA246786  Chrysanthemum segetum R. F. Thorne 1965-8-8 35270 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  CAS-BOT-BC36478  Chrysolepis chrysophylla Doris Kildale Gillespie 1931-6-7 10592 Humboldt South Fork Mt. Blake lookout 1726 Comment
  HSC8056  Chrysolepis chrysophylla Hilda W. Grinnell 1932-7-9 5 Humboldt Above Kerlin Creek, S. Fork Mtn. Comment
  RSA182008  Chrysolepis chrysophylla Joseph P. Tracy 1937-7-29 15583 Humboldt South Fork Mountain; along summit near Blake Lookout. 1707 Comment
  RSA46774  Chrysolepis chrysophylla Doris Kildale Gillespie 1937-8-26 15366 Humboldt Christmas Prairie. Comment
  HSC36440  Cicuta douglasii John Rehling 1974-7-8 9 Humboldt Big Lagoon Bog Comment
  JEPS15745  Cicuta douglasii Joseph P. Tracy 1925-7-5 7179 Humboldt near High Prairie (on Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  UC154219  Cicuta douglasii Joseph P. Tracy 1907-7-20 2597 Humboldt Region about Humboldt Bay, Northern Coast Region Humboldt Bay; Northern Coast Region, Humboldt Bay 0 Comment
  HSC53826  Circaea alpina subsp. pacifica Griswold, Butler 1979-7-10 6273 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC98713  Circaea alpina subsp. pacifica Cara Witte 2007-7-20 567 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1460 Comment
  HSC5373  Cirsium arvense Paul Shields 1955-9-29 Humboldt 1/2 mi. S Fernbridge Comment
  JEPS59311  Cirsium arvense W. L. Jepson 1936-8-12 17891 Humboldt South Fork of Eel River, Philipsville Comment
  SD113203  Cirsium arvense Darley F. Howe 1959-8-4 2801 Humboldt 78.5 miles west of Weaverville on Highway 299. 609 Comment
  SEINET11263070  Cirsium douglasii var. canescens Thomas Nelson 1976-7-9 2987 Humboldt Beside 1S07 just west of summit.; 0 1585 Comment
  CAS-BOT-BC279975  Cirsium douglasii var. douglasii John Thomas Howell 1937-7-31 13716 Humboldt 5 miles east of Berry Summit Comment
  UCD130620  Cirsium douglasii var. douglasii Collector Unknown Date Unknown s.n. Humboldt Horse Mt. Comment
  JEPS59231  Cirsium occidentale var. candidissimum W. L. Jepson 1902-8-5 2148 Humboldt Eltersburg to Briceland Comment
  UC129605  Cirsium occidentale var. candidissimum Harley P. Chandler 1901-6-1 1490 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  UC204828  Cirsium occidentale var. venustum Joseph P. Tracy 1918-7-3 4988 Humboldt Wilder Ridge Northern Coast Ranges, Wilder Ridge 762 Comment
  UC302287  Cirsium occidentale var. venustum Joseph P. Tracy 1926-6-20 7662 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 914 Comment
  CDA1549  Cirsium remotifolium var. odontolepis W. Simas 1972-7-1 s.n. Humboldt Humboldt Redwoods State Park, forested area near Redcrest, about 6 mi. NW of Weott. 0 Comment
  UC128736  Cirsium remotifolium var. odontolepis Harley P. Chandler 1901-6-1 1504 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  JEPS59184  Cirsium remotifolium var. odontolepis W. L. Jepson 1902-8-3 2139 Humboldt Bear River Range to Bear River (hills overlooking ocean); Bear River Range 152 Comment
  UC582537  Cirsium remotifolium var. rivulare Joseph P. Tracy 1934-7-6 13659 Humboldt Kneeland Prairie 762 Comment
  UC1119200  Cirsium vulgare H. L. Person 1932-7-21 Humboldt Blue Lake Eureka Quadrangle, Blue Lake Comment
  HSC5384  Cirsium vulgare J. L. Baker 1965-4-13 48 Humboldt 4 mi. N of Arcata on North Bank Rd. Comment
  RSA418966  Cirsium vulgare Lyman Benson 1928-7-12 417 Humboldt Weott Ranger Station, Seaward N. Coast Mt. Range, South Fork Eel River Watershed. 61 Comment
  HSC16236  Clarkia amoena J. P. Tracy 1938-6-17 15957 Humboldt Cape Mendocino, S of point of the Cape 3 Comment
  UC144097  Clarkia amoena Joseph P. Tracy 1907-7-4 2584 Humboldt just n of mouth Little River; Northern Coast Ranges 320 Comment
  CAS-BOT-BC160949  Clarkia amoena subsp. amoena C. L. Hitchcock; J. S. Martin 1939-7-14 5432 Humboldt Road bank 1 mile east of Shelter Cove Comment
  CAS-BOT-BC160959  Clarkia amoena subsp. amoena S. K. Harris; J. P. Tracy 1936-6-10 3277 Humboldt West of the South Fork of the Trinity River near its mouth 640 Comment
  CAS-BOT-BC160963  Clarkia amoena subsp. amoena Ynez Whilton Winblad 1941-6-24 s.n. Humboldt Between Garberville and Pepperwood Comment
  HSC36785  Clarkia amoena subsp. huntiana Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-7-20 2037 Humboldt 3 mi. E of Dinsmore Comment
  HSC78965  Clarkia davyi L. P. Janeway 1984-5-16 792 Humboldt N Spit of Humboldt Bay, on the W side of Samoa Road ca. 1/4 mi. NW of the boat ramp 3 Comment
  HSC35351  Clarkia gracilis J. D. Ackerman, A. M. Montalvo 1975-6-22 485 Humboldt 6.4 mi. W of Dinsmore, Hwy. 36 Comment
  CAS-BOT-BC172504  Clarkia purpurea subsp. quadrivulnera Doris K. Kildale 1926-6-8 2128 Humboldt Bug Creek 792 Comment
  CAS-BOT-BC172516  Clarkia purpurea subsp. quadrivulnera Alice Eastwood; John Thomas Howell 1937-6-22 4722 Humboldt Near Harris Comment
  HSC16257  Clarkia purpurea subsp. quadrivulnera R. Spellenberg 1965-6-13 1109 Humboldt E side of Trinity River, about 3/4 mi. S of Hwy. through Hoopa Indian Reservation Comment
  UC1196980  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1914-6-14 4498 Humboldt near Hydesville; Northern Coast Ranges, Yager Creek 60 Comment
  HSC98078  Clarkia purpurea subsp. viminea Cara Witte 2007-7-3 401 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1371 Comment
  CAS-BOT-BC164823  Clarkia rhomboidea Doris K. Kildale 1928-6-24 5292 Humboldt Horse Mountain road near junction of Willow Creek road 853 Comment
  HSC67213  Claytonia exigua subsp. exigua Thomas W. Nelson, James Nelson 1980-6-10 5442 Humboldt Along branch road off Swayback Ridge Rd., 1/2 mi. E of junction 1372 Comment
  CAS-BOT-BC439782  Claytonia perfoliata Henry M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans. Comment
  UC494168  Claytonia perfoliata subsp. perfoliata H. E. Parks, J. P. Tracy 1930-5-25 877 Humboldt Laribee Valley Comment
  HSC71810  Claytonia saxosa Thomas W. Nelson, Jane P. Nelson 1980-6-27 5952 Humboldt Six Rivers National Forest, saddle between two peaks E of Mt. Lassic 1768 Comment
  HSC101994  Claytonia sibirica M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 893 Humboldt Patterson Meadows 1566 Comment
  HSC54677  Claytonia sibirica Overton, Butler 1979-7-26 9928 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  UC1215540  Claytonia sibirica D. E. Anderson 1962-3-8 1930 Humboldt e of Humboldt State University Comment
  UC275282  Claytonia sibirica Joseph P. Tracy 1923-6-20 6330 Humboldt White Thorn Valley; Northern Coast Ranges 304 Comment
  CAS-BOT-BC443903  Claytonia sibirica A. A. Heller 1937-6-10 16274 Humboldt At Bishop Pine Lodge, 3 miles north of Trinidad on U. S. Highway #101. Comment
  SEINET11942404  Claytonia sibirica J. P. Tracy 1950-1 18960 Humboldt Fern Spring, Happy Camp Mountain (in Trinity Summit Range, 6 mi NE of Hawkins Bar) 1280 Comment
  HSC18086  Clematis lasiantha Doris K. Kildale 1925-6-27 771 Humboldt Mouth of Yager Creek Comment
  HSC14644  Clianthus puniceus R. A. Magie 1964-5-3 58 Humboldt 2 mi. N of Trinidad on old Hwy. to Crescent City. Comment
  CAS-BOT-BC499341  Clintonia andrewsiana Doris K. Kildale 1926-7-22 2413 Humboldt Metropolitan, woods near Canyon Peak Comment
  HSC48846  Clintonia uniflora Brad Klipfel 1973-7-15 205 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 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
  RSA46692  Collinsia greenei Doris K. Kildale 1938-6-5 15393 Humboldt Horse Mountain Comment
  HSC97485  Collinsia linearis Cara Witte 2007-5-23 94 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  CAS-BOT-BC412799  Collinsia linearis David D. Keck 1948-7-2 5999 Humboldt Ridge east of Redwood Creek on road to Willow Creek. On US Route 299 609 Comment
  HSC70372  Collinsia rattanii Gail Newton 1980-6-7 129 Humboldt Near Brush Mtn. 1128 Comment
  HSC41279  Collinsia rattanii Brad Klipfel 1974-6-25 437 Humboldt Horse Mtn., SE of the towers Comment
  UC203965  Collinsia rattanii Joseph P. Tracy 1918-5-26 4945 Humboldt lower slopes of Grouse Mountain towards Redwood Creek; Northern Coast Ranges, Grouse Mountain 762 Comment
  UC1196823  Collinsia sparsiflora var. collina Joseph P. Tracy 1932-4-24 9819 Humboldt between Miranda and Redway (S. Fork Eel River); North Coast Ranges 91 Comment
  JEPS26356  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1916-5-2 4685 Humboldt garden Eureka; North Coast Ranges 762 Comment
  UC582448  Collinsia torreyi var. wrightii Joseph P. Tracy 1932-7-12 10467 Humboldt Trinity Summit, Head of Brett Hole Head of Brett Hole; Trinity Summit, Head of Brett Hole 1828 Comment
  HSC35779  Collomia grandiflora Thomas W. Nelson, B. Reinhardt 1975-7-30 2095 Humboldt Head of Pilot Creek, Last Chance Ridge Comment
  HSC56331  Collomia grandiflora Overton, Butler 1979-8-2 12698 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC906687  Collomia grandiflora Joseph P. Tracy 1944-7-3 17485 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC52553  Collomia heterophylla Mrs. M. H. Manning May 1902 Humboldt near Hupa Comment
  HSC96927  Collomia heterophylla Elizabeth Kimbrough, Whitney Meier 2007-6-13 8 Humboldt Grouse Mtn., 1 mi. E of NF1 on USFS 5N04 1524 Comment
  UC1197850  Collomia heterophylla Joseph P. Tracy 1911-7-5 3324 Humboldt near its mouth Northern Coast Ranges, Willow Creek (tributary of Trinity Ri 304 Comment
  HSC97575  Collomia tinctoria Cara Witte 2007-5-29 138 Humboldt Along National Forest 1 near Kinsey Ridge. 1/2 mile south of cattle guard. 1369 Comment
  HSC82602  Collomia tracyi Thomas W. Nelson 1979-7-11 4992 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC99065  Collomia tracyi Cara Witte 2008-7-2 812 Humboldt Board Camp Mountain. Road to Tri Board Camp. Forest Service Road 4N38. 1574 Comment
  JEPS26243  Collomia tracyi Joseph P. Tracy 1940-7-7 16670 Humboldt on rocky banks Grouse Mt. 1463 Comment
  UC1197865  Collomia tracyi Joseph P. Tracy 1939-8-16 16416 Humboldt gravelly places near Clear Lake; North Coast Ranges 1524 Comment
  UC1197866  Collomia tracyi Joseph P. Tracy 1946-6-15 17566 Humboldt broken rock talus on lower slopes Horse Mountain 1066 Comment
  HSC5500  Conyza canadensis Paul Shields 1955-10-7 Humboldt Essex Pond, near Fieldbrook Comment
  UC127716  Conyza canadensis Harley P. Chandler May 1901 1241 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  UC1199442  Conyza canadensis Joseph P. Tracy 1939-8-5 16395 Humboldt along Van Duzen River (Dinsmore's) 737 Comment
  RSA246762  Corallorhiza maculata Robert F. Thorne, Percy C. Everett 1965-8-5 35135 Humboldt Mt. Chamisal: below summit. 747 Comment
  HSC95706  Corallorhiza mertensiana Juha Pykala, D. H. Norris 1987-6-10 1467 Humboldt 4.5 mi. N of Weitchpec, Blue Lake 838 Comment
  HSC100583  Corallorhiza multiflora Carl C. Marshall 297 Humboldt Coyote Camp. Comment
  RSA183520  Corallorhiza striata D. E. Anderson 1965-5-15 3684 Humboldt About 7 miles north of Hoopa on Bloody Camp Prairie Road Comment
  JEPS50770  Cordylanthus maritimus subsp. palustris Rimo Bacigalupi 1967-8-13 9307 Humboldt in salicornia salt marsh w of Northwest Pacific Railroad tracks and 1/8 mi n of Arcata Redwood Company plant 4 mi n Eureka (w shore of Arcata Bay); Arcata Bay Comment
  BLMAR678  Corethrogyne filaginifolia Jennifer Wheeler 2013-7-12 678 Humboldt King range, Johnny Jack Ridge 677 Comment
  POM199566  Corethrogyne filaginifolia var. californica Jos. Burtt Davy 1899-6-30 2185 Humboldt Near Ferndale Comment
  CAS-BOT-BC212009  Cornus nuttallii Greg de Nevers 2001-4-17 12247 Humboldt Humboldt Redwoods State Park 91 Comment
  HSC57031  Cornus nuttallii Overton, Butler 1979-7-24 9656 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC97551  Cornus nuttallii Cara Witte 2007-5-31 159 Humboldt National Forest Road 1. 1 mile south of intersection with 5N04. 1551 Comment
  RSA46900  Cornus nuttallii Doris K. Kildale 1925-8-13 1134 Humboldt Willow Creek, bank of Trinity River. 152 Comment
  UC1196901  Cornus nuttallii Joseph P. Tracy 1935-4-20 13786 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  CAS-BOT-BC212175  Cornus sericea Doris K. Kildale 1925-6-27 769 Humboldt Yager Creek near mouth. Comment
  UC502983  Cornus sericea subsp. sericea Joseph P. Tracy 1927-11-6 8392 Humboldt along Yager Creek Carlotta; Northern Coast Ranges 60 Comment
  UC1197936  Corylus californica Joseph P. Tracy 1949-7-19 18375 Humboldt at Friday Camp 1219 Comment
  UC1197937  Corylus californica Joseph P. Tracy 1946-8-25 17640 Humboldt Table Bluff, foot of N slope along Hookton Road 9 Comment
  BLMAR492  Corylus cornuta subsp. californica Jennifer Wheeler 2009-4-30 492 Humboldt King range, Hidden Valley trail; near overlook Comment
  HSC56977  Corylus cornuta subsp. californica Overton, Butler 1979-7-23 9512 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  UCR32167  Corylus cornuta var. californica David J. Keil 1983-7-2 17312 Humboldt c. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  HSC5428  Cotula coronopifolia John Warner Hosking 1968-10-10 Humboldt Clam Beach. Comment
  CAS-BOT-BC291341  Cotula coronopifolia C. L. Hitchcock; J. S. Martin 1939-7-14 5434 Humboldt Above pier at Shelter Cove Comment
  CDA7475  Cotula coronopifolia L. Tauzer 2002-5-3 43 Humboldt Arcata Marsh, Arcata. Comment
  JEPS49998  Crassula aquatica Joseph P. Tracy 1916-5-31 4705 Humboldt Alton Northern Coast Region, Alton 30 Comment
  SD148248  Crepis capillaris G. K. Helmkamp, E. A. Helmkamp 2001-7-8 6998 Humboldt North coastan strand; north spit of Samoa Peninsula, 0.5 mile north of California Highway 255 bridge over Humboldt Bay. 6 Comment
  UCSC000834  Crepis capillaris H. L. Person 1931-7-30 s.n. Humboldt Eureka, Fieldbrook Comment
  CAS-BOT-BC291489  Crepis capillaris David D. Keck; J. Clausen 1935-6-16 3396 Humboldt Just south of Trinidad Comment
  CAS-BOT-BC290848  Crepis pleurocarpa Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC98848  Crepis pleurocarpa Cara Witte 2008-7-11 871 Humboldt National Forest Road 6N36. 1/4 mile from intersection with National Forest 1. 1443 Comment
  SEINET5261839  Crocosmia X crocosmiiflora Unknown 2002-8-22 86 Humboldt On Fischer Road just N of the Mad River. Comment
  UCD138689  Crocosmia X crocosmiiflora T. C. Fuller 1968-7-30 17446 Humboldt northwest corner of overpass of Hwy 101 freeway to Garberville, 1 mile south of Fields Landing. 1524 Comment
  HSC102928  Cryptantha M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 900 Humboldt Patterson Meadows 1566 Comment
  UC1222277  Cryptantha affinis Joseph P. Tracy 1950-7-1 18956 Humboldt Friday Ridge Comment
  CHSC10140  Cryptantha leiocarpa J. W. Johnson 1962-4-10 1237 Humboldt Arcata. West slope of Ridge 3 behind the foredunes. Christenson Farm, Samoa Penisula. Comment
  SBBG28775  Cryptantha torreyana L. Constance, R. C. Rollins 1942-5-11 Humboldt Hoopa Valley 5 mi S of Hoopa 121 Comment
  HSC55114  Cryptogramma acrostichoides Gilbert Muth 1979-8-1 11879 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  JEPS93171  Cuscuta salina var. major Margriet Wetherwax and Kevin Downing 1993-8-9 2459 Humboldt on E side of Humboldt Bay, just N of Eureka; S side of Eureka Slough, near Bayside Road and Myrtle. Marsh at end of the road to church 5 Comment
  UC162650  Cuscuta salina var. major Joseph P. Tracy 1911-10-22 3551 Humboldt Bucksport Northern Coast Region, Humboldt Bay Region 0 Comment
  UC562478  Cuscuta subinclusa Joseph P. Tracy 1931-6-20 9586 Humboldt Alton, along Van Duzen River North Coast Ranges, Van Duzen River 30 Comment
  HSC26843  Cymbalaria muralis Thomas W. Nelson 1971-1-8 323 Humboldt In and about Ferndale Comment
  HSC37074  Cymopterus terebinthinus var. californicus R. Sutherland 1976-4-24 Humboldt Garberville Triangle 518 Comment
  UC1222264  Cynoglossum grande Joseph P. Tracy 1946-6-23 17592 Humboldt near the McBride place at s.e. end Kneeland Prairie 762 Comment
  UC1222258  Cynoglossum occidentale Joseph P. Tracy 1949-6-6 18302 Humboldt 6 mi. n.e. Hawkins Bar (Happy Camp Mt., Trinity Summit Rd.); Trinity Summit Range, Happy Camp Mt. 1280 Comment
  BLMAR144  Cynosurus echinatus Donald Hazlett 1994-6-7 144 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC38430  Cynosurus echinatus Dennis Anderson, J. P. Smith 1971-6-18 - 1061 Humboldt Chezem Rd., 3 mi. E of bridge over Redwood Creek Comment
  HSC79447  Cynosurus echinatus Kenneth Clark 1980-4-18 579 Humboldt Access trail to Dead Man's Gulch, Shelter Cove. 122 Comment
  OBI22352  Cynosurus echinatus Joseph P. Tracy 1941-6-29 16920 Humboldt McClellan Mt Comment
  UC668030  Cyperus bipartitus Joseph P. Tracy 1938-8-14 16113 Humboldt slopes w. of its mouth S. Fork Trinity R. 304 Comment
  HSC96342  Cyperus esculentus Gordon Leppig 2004-8-25 2195 Humboldt E edge of Eel River at Holmes Flat Comment
  HSC99660  Cypripedium californicum T. Jimerson, J. Pageau 1979-6-22 598 Humboldt Near Bee Mtn., close to the town of Orleans 655 Comment
  UC1196446  Cypripedium montanum Joseph P. Tracy 1924-4-27 6647 Humboldt brushy hillside at Berry's; Northern Coast Ranges, Redwood Creek 365 Comment
  RSA183569  Cytisus monspessulanus R. I. Bonn 1965-3-19 8 Humboldt 1/2 mi. south of G.P. mill on Samoa Rd. Comment
  UC303181  Cytisus scoparius Joseph P. Tracy 1923-6-18 6289 Humboldt Petrolia; Northern Coast Ranges 60 Comment
  CAS-BOT-BC189739  Danthonia californica Joseph P. Tracy 1935-5-25 13853 Humboldt Fort Seward. 106 Comment
  CAS-BOT-BC189742  Danthonia californica Joseph P. Tracy 1930-7-10 8860 Humboldt Northern Coast Ranges. Brannan Mountain. 1219 Comment
  HSC102211  Danthonia californica M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1126 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  RSA10088  Danthonia unispicata Joseph P. Tracy 1926-6-20 7611 Humboldt Horse Mountain 1402 Comment
  UC1103251  Danthonia unispicata H. E. Parks and Joseph P. Tracy 1934-6-14 11028 Humboldt Horse Mt. Northern Coast Ranges 1371 Comment
  UC1197349  Daucus pusillus J. P. Tracy 1901-6-16 1145 Humboldt near Bucksport 0 Comment
  UC642294  Daucus pusillus Joseph P. Tracy 1936-6-8 14870 Humboldt bluffs facing ocean Trinidad 3 Comment
  SEINET11836589  Delairea odorata J. P. Tracy 1942-1 17054 Humboldt near Ferndale along Russ Creek 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
  UC249647  Delphinium decorum subsp. tracyi Joseph P. Tracy May 14 1922-Jun 12 1922 6047 &6088 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  CAS-BOT-BC10310  Delphinium hesperium Alice Eastwood; John Thomas Howell 1937-6-23 4854 Humboldt Mad River Canyon, between Kneeland and Korbel Comment
  UC1196328  Delphinium nudicaule Joseph P. Tracy 1937-5-30 15303 Humboldt 5 mi n Blocksburg; Larrabee Creek 365 Comment
  JEPS60594  Delphinium nuttallianum Joseph P. Tracy 1933-6-13 12570 Humboldt on road from Hoopa westward to Bair's (near summit); Hoopa Mountain 1066 Comment
  CDA24232  Delphinium nuttallianum K. Eickhoff, C. M. Witte 2005-6-15 12 Humboldt Northwestern California; 14.1 miles south of Highway 299 on NFI, 0.25 mile northeast of Grouse Mountain. Comment
  POM172653  Delphinium trolliifolium Kneeland Prainie 1888-7-9 s.n. Humboldt Kneeland Prairie. Comment
  UC1334522  Delphinium trolliifolium G. A. L. Mehlquist and J. A. Jenkins 1940-5-23 17 Humboldt Comment
  SEINET10515745  Deschampsia cespitosa Mark Stopher 1980-6-4 Stopher 95 Humboldt Very common along Elk River near Hwy 101 bridge. Eureka Quadrangle 7.5', T4N R1W S4 SW1/4. 1 Comment
  UC187264  Deschampsia cespitosa subsp. beringensis Joseph P. Tracy 1904-7-31 2129 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC192701  Deschampsia danthonioides Joseph P. Tracy 1935-6-23 13969 Humboldt French Camp Ridge 1066 Comment
  CHSC102216  Deschampsia danthonioides Peter F. Zika 2009-6-15 24488 Humboldt North Coast; near Hatchery Road, S of town of Blue Lake. 20 Comment
  UC187272  Deschampsia danthonioides Joseph P. Tracy 1911-7-7 3379 Humboldt 3 mi. n.w. of junction of Willow Creek with Trinity R. (near Beebe's Ranch, at meadows on mt. side); Northern Coast Ranges 914 Comment
  HSC24253  Deschampsia elongata D. E. Anderson 1970-5-21 5081 Humboldt Scotia bluffs. Comment
  HSC63882  Deschampsia elongata M. A. Baker 1979-6-29 960 Humboldt Hopkins Creek 750 Comment
  HSC9602  Deschampsia elongata True Hoyle 1967-7-24 29267 Humboldt Oscar Stapp Ranch near Showers Creek and Showers Pass Comment
  POM365046  Deschampsia elongata Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek- near Orleans. Comment
  HSC74201  Descurainia incisa subsp. incisa M. A. Baker 1980-7-19 3005 Humboldt Near Bret Hole. 1814 Comment
  CHSC7026  Dicentra formosa K. R. Stern 1964-6-16 2113 Humboldt .7 mi. n of Big Lagoon bridge on w side of US Hwy. 101. Comment
  UC1362290  Dicentra formosa Kingsley R. Stern 1964-6-13 2106 Humboldt 2.3 mi w U.S. Highway 101 (on e bank of Redwood Creek); Redwood Creek Comment
  CAS-BOT-BC402403  Dicentra formosa subsp. formosa L. R. Abrams 1918-6-12 7084 Humboldt Cottage Nurseries, Eureka Comment
  CAS-BOT-BC402412  Dicentra formosa subsp. formosa S. Morrissette; J. Williams; K. Kopper 1994-5-6 040 Humboldt Intersection of Hwy 299 & Redwood Valley Rd. 609 Comment
  CAS-BOT-BC209193  Dichanthelium acuminatum subsp. acuminatum Joseph P. Tracy 1931-5-17 9427 Humboldt Along river, Willow Creek, Trinity River Valley. 152 Comment
  SEINET200695  Dichelostemma X venustum Joseph P. Tracy 1923-7-4 6524 Humboldt Valley of South Yager Creek 762 Comment
  CAS-BOT-BC483666  Dichelostemma capitatum Doris K. Kildale 1928-5-6 5995 Humboldt Garberville, south fork of Eel River Comment
  RSA755796  Dichelostemma congestum Barbara Ertter, Thomas J. Delendick 1987-5-16 6919 Humboldt Vista Point just west of Berry Summit on Highway 299. 915 Comment
  UC635734  Dichelostemma ida-maia H. L. Mason 1928-7-20 4909 Humboldt South Fork Mountain Comment
  JEPS508  Dichelostemma ida-maia Joseph P. Tracy 1937-7-19 15450 Humboldt nw slope Buck Mountain 914 Comment
  POM277001  Dichelostemma ida-maia Lyman Benson 1930-7-18 2188 Humboldt W of Willow Creek, Seaward N Coast Mtn range, W of Trinity. 457 Comment
  SEINET12053111  Dichelostemma ida-maia L. K. Henry 1971-1 s.n. Humboldt along Rt.36, 2 mi E of Dinsmore, in Six Rivers National Forest Comment
  UC13825  Dichelostemma multiflorum Harley P. Chandler Jun 1901 1310 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  RSA54137  Digitaria sanguinalis Henry M. Pollard 1944-9-7 s.n. Humboldt Near Orleans. Comment
  UC1103232  Digitaria sanguinalis Joseph P. Tracy 1930-10-12 9212 Humboldt Alton to Fortuna; Eel River 15 Comment
  CAS-BOT-BC150346  Diplacus aurantiacus Alice Eastwood 1907-4-21 6 Humboldt Trinidad Comment
  CAS-BOT-BC150348  Diplacus aurantiacus L. R. Abrams; R. Bacigalupi 1922-6-25 8291 Humboldt North of Big Lagoon Comment
  UC602572  Dipsacus sativus Joseph P. Tracy 1937-8-3 15610 Humboldt along Mad River near Blue Lake; Mad River 15 Comment
  POM278274  Disporum smithii Lyman Benson 1928-7-11 163 Humboldt Weott Ranger Station, Mt. Range: Seaward N Coast; Drainage Area: S Fork Eel River. 61 Comment
  SEINET3885741  Disporum smithii Victor Duran 1933-5-12 3413 Humboldt Dyerville, South Fork of the Eel River.; 0 Comment
  HSC26357  Distichlis spicata T. O. Osborne 1970-6-18 55 Humboldt Green Rock, 1-5/8 mi. N, 3/4 mi. W of Trinidad Lighthouse. Comment
  UC526904  Distichlis spicata Joseph P. Tracy 1933-8-22 12989 Humboldt Mouth of Eel River 3 Comment
  CHSC24852  Dodecatheon hendersonii A. D. Launer 1976-4-10 2 Humboldt On s bank of Conley Cr, 100 yds n of forks of Conley Cr, ca. 1.5 mi e of Church St. in Blocksburg. 487 Comment
  HSC17909  Dodecatheon hendersonii D. E. Anderson 1965-4-24 3545 Humboldt Ca. 2 mi. E of Berry Summit along Hwy. 299 Comment
  RSA183606  Dodecatheon hendersonii G. Bos 1965-5-15 278 Humboldt Berry Summit near U.S. 299. Growing in moss at base of Quercus. 793 Comment
  UC1222160  Downingia bacigalupii Joseph P. Tracy with Mr. Murphy 1951-6-26 19583 Humboldt Upper Twin Lakes Comment
  UC179933  Downingia cuspidata Joseph P. Tracy 1914-5-14 4468 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  UC1199494  Downingia elegans Joseph P. Tracy 1933-4-30 13053 Humboldt Grouse Mountain Northern Coast Ranges 1524 Comment
  SEINET6425013 Image available Drosera rotundifolia Mrs. Alma Bonstell 1912-1 Humboldt Christmas Prairie 914 Comment
  HSC38525  Drymocallis glandulosa D. E. Anderson, J. P. Smith 1971-6-18 1071 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  CAS-BOT-BC159609  Drymocallis glandulosa var. glandulosa M. S. Jussel 1931-5-2 139 Humboldt 6 miles from Garberville Comment
  HSC58089  Drymocallis lactea var. lactea G. L. Clifton, Griswold 1979-8-1 11998 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  JEPS70196  Dryopteris arguta Robert J. Rodin 1969-8-16 8368 Humboldt near Carlotta (near Van Duzen River) Comment
  CAS-BOT-BC428297  Dudleya farinosa Doris K. Kildale 1927-6-25 3544 Humboldt Shelter Cove. Comment
  HSC90658  Eleocharis macrostachya Gail Newton 1982-6-10 3640 Humboldt Elk River Wildlife Area, Eureka Comment
  UC666873  Eleocharis macrostachya Joseph P. Tracy 1934-8-14 13570 Humboldt Alton 30 Comment
  CAS-BOT-BC112841  Eleocharis macrostachya Henry M. Pollard 1945-8-27 s.n. Humboldt Pond near Harley place. 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
  HSC7307  Eleocharis macrostachya D. E. Anderson 1961-9-9 1783 Humboldt Along Hwy. 101 Comment
  UC213331  Eleocharis macrostachya Joseph P. Tracy 1920-8-29 5396 Humboldt Little River, borders of lagoon Northern Coast Ranges 6 Comment
  POM273092  Eleocharis obtusa Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans Region Comment
  UC1103662  Eleocharis parvula Joseph P. Tracy 1921-8-7 5868 Humboldt Stone Lagoon 3 Comment
  UC666919  Eleocharis suksdorfiana Joseph P. Tracy 1935-7-27 14305 Humboldt McKay Prairie, open places Trinity Summit 1584 Comment
  UC38216  Elymus X hansenii J. Burtt Davy 1899-6-19 5661 y Humboldt Hoopa Mt. North Coast Ranges Comment
  HSC9695  Elymus condensatus J. Wendell Howe 1253 Humboldt Little River Beach Comment
  HSC10946  Elymus elymoides var. elymoides J. P. Tracy 1933-7-25 12889 Humboldt Grouse Mtn. 1524 Comment
  HSC58637  Elymus elymoides var. elymoides G. L. Clifton, Griswold 1979-7-31 11573 Humboldt Near Trinity Summit Guard Station, close to Hoopa 1884 Comment
  UC552783  Elymus glaucus Joseph P. Tracy 1935-6-22 13958 Humboldt Holmes Flat North Coast Ranges (along river) 60 Comment
  UCD62351  Elymus glaucus subsp. glaucus A. A. Beetle; G. L. Stebbins Jr. 1942-6-3 3484 Humboldt Near Garberville, 1.4 miles on road to Harris. Comment
  RSA10136  Elymus glaucus subsp. jepsonii Joseph P. Tracy 1933-8-6 12950 Humboldt French Camp Ridge. 1067 Comment
  HSC9732  Elymus mollis subsp. mollis D. M. Thompson 1965-5-3 47 Humboldt 1/4 mile S of Fern Canyon, Gold Bluff Beach. Comment
  UCD62561  Elymus repens R. Tofsrud 1949-7-1 Humboldt Ferndale. Comment
  CAS-BOT-BC204333  Elymus trachycaulus subsp. trachycaulus David D. Keck 1948-7-1 5969 Humboldt South side of Big Lagoon Comment
  HSC8757  Elymus trachycaulus subsp. trachycaulus R. I. Bonn 1965-10-1 Humboldt 2 miles N of Bridgeville on Kneeland-Bridgeville Rd. 732 Comment
  UC1103470  Elytrigia repens Joseph P. Tracy 1940-10-5 16751 Humboldt Trinidad; foot of coast bluff 6 Comment
  JEPS39208  Epilobium brachycarpum Joseph P. Tracy 1917-9-3 4854 Humboldt lower w slopes of mt. Northern Coast Ranges, Grouse Mt., Janes Ranch 914 Comment
  HSC49628  Epilobium ciliatum subsp. ciliatum Thomas W. Nelson, Jane P. Nelson 1979-7-3 4943 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC74688  Epilobium ciliatum subsp. ciliatum Gail Newton 1981-8-7 2467 Humboldt Near Board Camp Mtn. 1478 Comment
  POM225267  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-9 14330 Humboldt South fork of Eel River, 5 miles north of Humboldt-Mendocino County line, on Redwood Highway Comment
  UC583053  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-12 14379 Humboldt Willow Creek Comment
  POM249603  Epilobium ciliatum subsp. ciliatum C. L. Hitchcock, J. P. Martin 1939-7-14 5441 Humboldt 7 miles east of Shelter Cove Comment
  UC1197007  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1914-9-6 4605 Humboldt between High Prairie and Snow Camp (in peat bog); Northern Coast Ranges, Bald Mountain 1219 Comment
  POM225523  Epilobium ciliatum subsp. watsonii P. A. Munz 1936-8-13 14385 Humboldt Clam Beach 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
  UC902169  Epilobium densiflorum Joseph P. Tracy 1946-8-25 17644 Humboldt Alton to Fortuna (on gravel bars); Eel River 15 Comment
  UC1222845  Epilobium foliosum Joseph P. Tracy 1950-6-15 18808 Humboldt n Harris; Mail Ridge Comment
  UC505117  Epilobium foliosum Joseph P. Tracy 1928-5-6 8430 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1197005  Epilobium glaberrimum subsp. glaberrimum Joseph P. Tracy 1920-8-15 5381 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  UC562502  Epilobium glaberrimum subsp. glaberrimum Joseph P. Tracy 1936-8-7 15102 Humboldt head of Little Hors-Linto Creek Trinity Summit 1524 Comment
  HSC55081  Epilobium hallianum G. L. Clifton, Griswold 1979-7-31 11736 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC31196  Epilobium minutum D. E. Anderson 1972-6-20 5747 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC72699  Epilobium minutum Gail Newton 1980-6-24 582 Humboldt Near Ladder Rock 1570 Comment
  JEPS31520  Epilobium septentrionale Joseph P. Tracy 1933-9-9 13075 Humboldt vicinity of Garberville (along S. Fork Eel R.); S. Fork Eel R. 121 Comment
  UC1196952  Epilobium septentrionale Arthur E. Connick 1932-8-12 Humboldt Garberville 121 Comment
  HSC91902  Equisetum arvense E. Mackey 1987-8-28 Humboldt Patrick's Point State Park, Palmer's Point Comment
  CAS-BOT-BC57793  Equisetum telmateia Joseph P. Tracy 1937-6-26 15361 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  SEINET5525683 Image available Equisetum telmateia Unknown 1983-6-16 Humboldt Patricks Pt State Park Comment
  HSC99644  Equisetum telmateia subsp. braunii L. Watson, J. Meninga Mar 1991 22 Humboldt Near Manilla, Mad River Slough and Dunes, 0.5 mi. N of parking lot, E of trail Comment
  RSA21604  Equisetum telmateia var. braunii C. B. Wolf 1937-9-14 9351 Humboldt North Coast Range, Lord Ellis Road, 7.6 miles east of Blue Lake. 213 Comment
  HSC9769  Eragrostis hypnoides J. P. Tracy 1931-9-7 9663 Humboldt Trinity River Valley, Willow Creek Comment
  CAS-BOT-BC213622  Eragrostis mexicana subsp. virescens Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  RSA44366  Eragrostis pectinacea Henry M. Pollard 1947-8-30 s.n. Humboldt Near Wilson Creek, on Klamath River, (near Orleans) Comment
  UC1103227  Eragrostis pilosa var. pilosa Joseph P. Tracy 1920-8-15 5361 1/2 Humboldt Klamath River mouth of Bluff Creek (mouth of Bluff Creek); Northern Coast Ranges, , Bluff Creek 152 Comment
  RSA639200  Erica lusitanica Gary D. Wallace 1988-4-11 2806 Humboldt South of Eureka: Just north of Loleta on Hwy 101, just south of Loleta Drive. 60 Comment
  CAS-BOT-BC131506  Ericameria arborescens H. E. McMinn 1922-8-3 476 Humboldt Mt. slope above S.F., Eel River Comment
  CAS-BOT-BC287477  Ericameria greenei Doris K. Kildale 1925-8-17 1212 Humboldt Trinity Summit at Ranger Station 1828 Comment
  UC581775  Ericameria nauseosa var. speciosa Joseph P. Tracy 1929-8-18 8652 Humboldt Northern Coast Ranges, Larrabee Valley 701 Comment
  HSC98024  Erigeron aliceae Cara Witte 2007-7-11 509 Humboldt National Forest 1. Approximately 1 mile south of intersection with 5N01. Near Spike Buck Mountain. 1591 Comment
  RSA168814  Erigeron decumbens var. robustior Joseph P. Tracy 1942-7-4 17371 Humboldt McClellan Mountain at 'Camp Desparation' near the old Sweany place, 2 miles west of McClellan House 610 Comment
  RSA21324  Erigeron foliosus var. confinis C. B. Wolf 1937-8-13 9218 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  CAS-BOT-BC300682  Erigeron foliosus var. mendocinus Alice Eastwood 1921-7-21 10660 Humboldt Vanduzen [Van Duzen] River Comment
  UC581719 Image available Erigeron klamathensis Joseph P. Tracy 1937-7-24 15515 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  CAS-BOT-BC214579  Erigeron philadelphicus W. R. Dudley 1899-6-19 s.n. Humboldt Scotia Comment
  CAS-BOT-BC214592  Erigeron philadelphicus Henry M. Pollard 1948-7-19 s.n. Humboldt Orleans to Van Fleet ranch Comment
  HSC71370  Erigeron philadelphicus J. P. Smith 1973-5-26 6843 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  RSA121418  Erigeron philadelphicus H. S. Yates 1936-6-23 5855 Humboldt 2 miles S.E. of mouth of Mad River 30 Comment
  CDA4936  Erigeron philadelphicus Keith Miller, T. R. Haig 1960-6-13 4552 Humboldt 4 miles southeast of Carlotta 0 Comment
  UC165032  Erigeron philadelphicus var. philadelphicus J. P. Tracy 1901-5-30 1113 Humboldt immediate vicinity Eureka 0 Comment
  UCD132041  Erigeron philadelphicus var. philadelphicus P. B. Kennedy 1929-6-12 s.n. Humboldt Eureka. Comment
  HSC70691  Eriodictyon californicum Gail Newton 1980-7-15 1566 Humboldt Near Sims Mtn. 1311 Comment
  UC169013  Eriodictyon californicum Harley P. Chandler June, 1901 1352 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC55185  Eriogonum compositum G. L. Clifton, Griswold 1979-8-2 12234 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  CAS-BOT-BC259180  Eriogonum latifolium H. E. Parks 1941-8-1 24198 Humboldt Little River Comment
  HSC49090  Eriogonum latifolium Patricia Shesgreen 1978-8-12 136 Humboldt Along Hwy. 255, 0.25 mi. S of Samoa Bridge Comment
  SD185287  Eriogonum latifolium G. K. Helmkamp, E. A. Helmkamp 2001-7-8 7016 Humboldt North coast: Samoa Peninsula, 2.6 mi S of CA-255 bridge across Humboldt Bay 14 Comment
  HSC95098  Eriogonum latifolium Andrea Pickart 2002-6-30 141 Humboldt Lanphere Dunes, Humboldt Bay National Wildlife Refuge 24 Comment
  SEINET10479505  Eriogonum latifolium Mary Susan Taylor 1982-10-24 Taylor 5180 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  CAS-BOT-BC259285  Eriogonum lobbii Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. 1524 Comment
  CAS-BOT-BC259543  Eriogonum luteolum var. luteolum Henry M. Pollard 1943-1-1 s.n. Humboldt Orleans Comment
  UC54741  Eriogonum nudum var. nudum P. E. Goddard 1901-7-12 75 Humboldt Hupa Comment
  UC672904  Eriogonum nudum var. nudum Joseph P. Tracy 1932-7-20 10728 Humboldt open places at Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  CAS-BOT-BC261489  Eriogonum nudum var. nudum Carl B. Wolf 1927-8-28 1168 Humboldt Along the Blue Lake road, 9 miles from Willow Creek Comment
  RSA44500  Eriogonum nudum var. nudum H. M. Pollard 1947-8-22 s.n. Humboldt Klamath River bed near Fontana's Fishing Lodge, Orleans region Comment
  UC1198140  Eriogonum nudum var. nudum Joseph P. Tracy 1930-7-4 9929 Humboldt near. on raod from Bull Creek to Mattole Windy Nip Gap 762 Comment
  HSC40826  Eriogonum strictum var. greenei Thomas W. Nelson, James Nelson 1976-7-26 3041 Humboldt Middle pk. of Mt. Lassic group 1738 Comment
  CAS-BOT-BC267968  Eriogonum umbellatum var. argus Joseph P. Tracy 1935-7-23 14133 Humboldt Trinity Summit, at Corral Prairie 1584 Comment
  HSC99077  Eriogonum umbellatum var. goodmanii Cara Witte 2007-7-27 607 Humboldt Grouse Mountain area. Intersection of Forest Service Roads 4N32 and 4N32E. 1485 Comment
  RSA0005167  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8345 Humboldt Along U.S. Forest Service Road 1 at south end of Whiting Ridge, about 0.5 air miles west-northwest of High Salt Ground and 9.3 air miles west of Hyampom. 1296 Comment
  HSC74215  Eriogonum umbellatum var. polyanthum M. A. Baker 1980-7-15 2969 Humboldt Near Whiting Ridge. 1341 Comment
  HSC58062  Eriophorum crinigerum G. L. Clifton, Griswold 1979-8-1 11939 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1692 Comment
  JEPS34585  Eriophyllum lanatum var. achilleoides Chestnut and Drew 1888-7-12 Humboldt Jarnigans Comment
  UC165840  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1900-9-10 956 Humboldt near Hydesville (gravel bar of the Van Duzen River); Van Duzen River 60 Comment
  HSC31217  Eriophyllum lanatum var. grandiflorum D. E. Anderson 1972-6-20 5738 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC98102  Eriophyllum lanatum var. grandiflorum Cara Witte 2007-6-20 311 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  UC1223128  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1944-7-3 17480 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  UC203988  Eryngium armatum Joseph P. Tracy 1918-7-3 4994 Humboldt near ocean Shelter Cove; Northern Coast Ranges, Shelter Cove 15 Comment
  SEINET10970607  Erysimum capitatum Jones 1985-6-6 Jones 115 Humboldt T34n,r4e,sec.14. Titlow rd. Ca 8 miles s off hwy. Pinus, arbutus, quercus Chrysolepis, quercus vaccinifolia habitat. Growing on rock wall 1143 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
  JEPS53581  Erysimum capitatum var. capitatum Lincoln Constance 1934-6-22 919 Humboldt summit of peak South Fork Eel River, Bull Creek Region, Grasshopper Peak (down Canoe Cr. rd to Redwood Hwy and thence n to Dyerville) Comment
  HSC57433  Erysimum perenne G. L. Clifton, Terry Griswold 1979-7-26 10219 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  JEPS505  Erythronium californicum Joseph P. Tracy 1938-6-13 15896 Humboldt Horse Mountain 1432 Comment
  UC666967  Erythronium californicum Joseph P. Tracy 1938-6-13 15896 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC502714  Erythronium grandiflorum Joseph P. Tracy 1933-7-16 12774 Humboldt Opening in Fir forest near McKay Camp, South Fork Mtn. 1676 Comment
  HSC32248  Erythronium grandiflorum subsp. grandiflorum J. O. Sawyer 1970-6-24 Humboldt W of Mill Creek Lakes. 1677 Comment
  HSC48757  Erythronium grandiflorum subsp. grandiflorum Brad Klipfel 1973-6-10 71 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC48836  Erythronium grandiflorum subsp. grandiflorum Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 29 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  HSC15499  Erythronium oregonum subsp. leucandrum D. E. Anderson 1965-4-24 3548 Humboldt 3 mi. E of Redwood Creek bridge along Hwy. 299, old routing Comment
  CAS-BOT-BC403034  Eschscholzia californica Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  OBI69925  Eucalyptus globulus Jenn Yost, Matt Ritter 2008-4-1 41 Humboldt Sewell R. off 101, Weott Comment
  HSC58763  Eucephalus ledophyllus Terry Griswold 1979-7-26 10161 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  CAS-BOT-BC310453  Eucephalus ledophyllus var. covillei Doris K. Kildale 1925-8-17 1214 Humboldt (Near to) Trinity Summit 1917 Comment
  RSA44413  Euchiton sphaericus H. M. Pollard 1948-7-27 s.n. Humboldt Near mouth of Red Cap Creek, near Orleans Comment
  HSC100665  Eunanus douglasii Carl C. Marshall Apr 1887 377 Humboldt Hoopa Valley, dry roadsides. Comment
  POM160838  Euonymus occidentalis H. E. Parks, Joseph P. Tracy 1925-6-14 7123 Humboldt Kneeland Prairie road. 457 Comment
  HSC102197  Euonymus occidentalis var. occidentalis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1111 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  CAS-BOT-BC312210  Eurybia radulina Doris K. Kildale 1926-8-22 2588 Humboldt On Orick - Martin's Ferry Road 716 Comment
  HSC66404  Eurybia radulina Ruby Van Deventer 1950-8-15 Humboldt Myers Falt 61 Comment
  UC581767  Euthamia occidentalis Joseph P. Tracy 1931-9-7 9636 Humboldt Northern Coast Ranges, Trinity River Valley; Lack Pond, opposite mouth of Willow Creek 152 Comment
  UCD98888  Fallopia convolvulus Joseph P. Tracy 1947-8-10 17881 Humboldt location unknown. 30 Comment
  SEINET200324 Image available Festuca bromoides Joseph P. Tracy 17092 Humboldt Loleta 15 Comment
  HSC31183  Festuca californica D. E. Anderson 1972-6-20 5752 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  UC526870  Festuca californica Joseph P. Tracy Jul 16 1930-Jul 19 1930 9044 Humboldt near Blake lookout (along summit South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1737 Comment
  HSC63852  Festuca idahoensis M. A. Baker 1979-6-27 916 Humboldt S facing ridgeside Comment
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Feb 15 2013
  HSC9954  Festuca occidentalis R. H. Berg 1963-5-1 62 Humboldt HSU Campus, Arcata, CA Comment
  RSA10112  Festuca occidentalis Joseph P. Tracy 1932-7-17 10655 Humboldt Near Corral Prairie, Trinity summit, Klamath mountains. 1524 Comment
  UCD66125  Festuca occidentalis P. B. Kennedy 1923-8-23 Humboldt Near Orleans, near top of grade - Red Bluff to Arcata. Comment
  UCD66182  Festuca occidentalis Victor Duran 1933-5-11 3410 Humboldt Van Duzen River, near Bridgeville. Comment
  BLMAR30  Festuca perennis Brad Barr June, 1982 30 Humboldt King range, Smith cabin Comment
  BLMAR39  Festuca perennis Brad Barr 39 Humboldt King range, hidden valley enclosure Comment
  CAS-BOT-BC278966  Festuca rubra W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  RSA126626  Festuca rubra H. L. Person 1932-5-11 s.n. Humboldt Near Arcata 0 Comment
  CAS-BOT-BC282520  Festuca subbiflora Joseph P. Tracy 1901-6-10 1134 Humboldt Eureka 60 Comment
  HSC89431  Fragaria X ananassa P. A. Daly 1984-5-8 8 Humboldt Trinidad Head. 61 Comment
  HSC45585  Fragaria chiloensis Diane L. Reed 1978-4-29 41 Humboldt Trinidad Head Comment
  HSC23707  Fragaria vesca J. O. Sawyer 1970-6-27 2309 Humboldt Site 318. 1494 Comment
  CAS-BOT-BC52740  Frangula californica subsp. californica Doris K. Kildale 1927-5-15 3294 Humboldt Petrolia - Mattole River Valley Comment
  CAS-BOT-BC59952  Frangula purshiana Doris Kildale Gillespie 1932-9-1 4205 Humboldt Eureka, on S St. 1 block no. of Henderson St. 30 Comment
  CAS-BOT-BC59954  Frangula purshiana Carl B. Wolf 1934-6-30 5818 Humboldt Mendocino. 22 Comment
  HSC18415  Frangula purshiana G. B. Kendall 1965-5-8 7 Humboldt 1.0 mi S of Trinidad on Hwy. 101 Comment
  HSC102028  Frasera speciosa M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 930 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC103299  Fritillaria affinis Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-27 3008 Humboldt Six Rivers National Forest; ~ 0.2 mi. south-southeast of Cold Spring Camp; ~ 3.3 aerial mi. south-southeast of Horse Mtn. Radio Tower. 1416 Comment
  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
  UC1197631  Fritillaria purdyi Mrs. Barnwell 1923-4-28 7488 Humboldt Chalk Mountain; Northern Coast Ranges, Chalk Mountain 762 Comment
  HSC67178  Galium ambiguum Thomas W. Nelson, James Nelson 1980-6-10 5429 Humboldt Along E side of Red Mtn. 1372 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
  BLMAR274  Galium aparine Jennifer Anthony-Wheeler 1999-7-30 274 Humboldt Lacks Creek 1219 Comment
  HSC70724  Galium aparine Gail Newton 1980-7-14 1519 Humboldt Near Deadman Ridge 1097 Comment
  HSC95750  Galium aparine Steven Lee 2004-4-25 23 Humboldt From Hwy. 299, take South Fork Rd. to County Rd. 341. River access trail is at the end of the road. Comment
  JEPS25701  Galium bolanderi P. C. Hutchison 1961-5-22 2031 Humboldt high bluffs along road ca. 5.4 mi n Orleans (on US hwy 299, e side of river); Klamath River Comment
  POM338118  Galium californicum F. R. Fosberg 1948-8-28 30044 Humboldt Between Benbow and Garberville. Comment
  RSA47104  Galium californicum Doris K. Kildale 1925-7-19 1053 Humboldt Bridgeville. 290 Comment
  SEINET6991542  Galium californicum Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Open burnt timber, saddle near east end of Bald Hills, southeast of Orick. Comment
  JEPS6683  Galium muricatum Lincoln Constance 1934-5-23 602 Humboldt se slope of mt. above Look Prairie; South Fork Eek River, Bull Creek Region 365 Comment
  RSA46487  Galium porrigens Doris K. Kildale 1926-3-26 1645 Humboldt Old Fortuna Rd Comment
  UC1196080  Galium trifidum Joseph P. Tracy 1903-8-9 1944 Humboldt Eureka Northern Coast Region 0 Comment
  HSC48679  Galium triflorum Brad Klipfel 1973-7-31 249 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC58074  Galium triflorum G. L. Clifton, Griswold 1979-8-1 11968 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UC1023846  Galium triflorum Milo S. Baker 1947-8-10 11903 Humboldt near end of Forest Rd from Hoopa toward Trinity Summit Comment
  CAS-BOT-BC303398  Gamochaeta ustulata L. R. Abrams 1916-7-18 6125 Humboldt Arcata to Trinidad Comment
  CAS-BOT-BC303396  Gamochaeta ustulata M. S. Jussel 1931-5-2 s.n. Humboldt Near Garberville Comment
  JEPS66718  Garrya elliptica Joseph P. Tracy 1925-8-14 7231 Humboldt near Samoa (on Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  UC1585366  Garrya elliptica R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 19 Humboldt w of Eureka (0.5 km s of Hwy 255, on New Navy Base Rd on North Split of Samoa Peninsula); Samoa Peninsula 10 Comment
  RSA89596  Garrya fremontii M. F. Moseley 1952-8-21 346 Humboldt Along western valley wall of Willow Creek, mostly within Hoopa Indian Reservation, upstream from Willow Creek Village. Comment
  UC1196892  Garrya fremontii Joseph P. Tracy 1939-8-16 16408 Humboldt Horse Mountain 1432 Comment
  UCD121163  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 b Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UCSB72514  Garrya fremontii Moseley, Maynard 1952-8-21 Humboldt Along western valley wall of Willow Creek, mostly within Hoppe Indian Reservation, upstream from Willow Village Comment
  POM207448  Gastridium phleoides Joseph P. Tracy 1900-9-9 951 Humboldt Bar of Yager Creek, near Hydesville. 61 Comment
  UC38566  Gastridium ventricosum Harley P. Chandler 1901-6-1 1506 Humboldt Klamath River; North Coast Ranges, Klamath River 426 Comment
  CAS-BOT-BC58905  Gaultheria shallon Carl B. Wolf 1930-10-30 1043 Humboldt Old Coast Road, 4 miles south of Thorn 304 Comment
  HSC7807  Gaultheria shallon D. E. Anderson 1961-8-27 1758 Humboldt 8 mi. W of Redwood Creek Br. along Hwy. 299 Comment
  RSA46828  Gaultheria shallon Doris K. Kildale 1926-1-3 1465 Humboldt Big Lagoon road near Trinidad. Comment
  SBBG25595  Gaultheria shallon E. R. Blakley 1966-8-17 6793 Humboldt Little Crk, Prairie Crk St Park, ca. 10 mi N of Orick 60 Comment
  SEINET3107001  Gaultheria shallon Steve Selva, Roger Jensen 1974-8-21 26 Humboldt Redwood grove adjacent to highway 101 rest stop. Approx 3 miles N of Trinidad. Comment
  HSC54658  Gayophytum diffusum subsp. parviflorum Overton, Butler 1979-7-25 9877 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  HSC55051  Gayophytum diffusum subsp. parviflorum G. L. Clifton, Griswold 1979-7-31 11582 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa Comment
  HSC98954  Gayophytum diffusum subsp. parviflorum Cara Witte 2008-7-28 947 Humboldt Buck Flat. Near intersection of National Forest 1 and Forest Service Road 5N01. 1591 Comment
  UC153982  Gentiana affinis var. ovata J. P. Tracy 1904-8-7 2140 Humboldt immediate vicinity Eureka 0 Comment
  UC1198639  Gentiana affinis var. ovata Joseph P. Tracy 1913-9-9 4401 Humboldt prairies at s end Big Lagoon; Northern Coast Ranges 30 Comment
  HSC22015  Gentiana sceptrum Thomas W. Nelson 1970-10-17 237 Humboldt Big Lagoon Comment
  UC668043  Geranium core-core Joseph P. Tracy 1933-5-20 12251 Humboldt 1 mi w Petrolia; Northern Coast Ranges, Mattole Valley 60 Comment
  HSC54201  Gilia capitata Gilbert Muth 1979-7-12 7238 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  SEINET6969928  Gilia capitata Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  UC1222733  Gilia capitata subsp. capitata Joseph P. Tracy 1950-6-15 18789 Humboldt 7 mi n Harris (Mail Ridge); n of Harris, Mail Ridge Comment
  UC52441  Gilia capitata subsp. capitata Harley P. Chandler June, 1901 1521 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  HSC36617  Gilia capitata subsp. pacifica J. D. Ackerman 1974-5-25 266 Humboldt 0.25 mi. S of Lufenholtz Beach between Moonstone and Trinidad 6 Comment
  HSC90478  Gilia millefoliata Jean Hanson 1981-5-10 131 Humboldt Indian Island, Humboldt Bay, Eureka, W end of island Comment
  UC1197907  Gilia millefoliata Joseph P. Tracy 1931-6-15 9583 Humboldt sandy ground along bay shore at Bucksport (around Humboldt Bay); Northern Coast Region, around Humboldt Bay 6 Comment
  UC1197905  Gilia tricolor subsp. tricolor Joseph P. Tracy 1929-5-5 8561 Humboldt Miranda Northern Coast Ranges, South Fork of Eel River, Miranda (along South Fork of Eel River) 121 Comment
  UC1239686  Glechoma hederacea Joseph P. Tracy 1921-6-4 5811 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  SD42578  Glehnia littoralis Carl B. Wolf 1937-6-18 Humboldt Centerville Beach 3 Comment
  HSC21497  Glehnia littoralis subsp. leiocarpa S. J. Hawks 1965-5-14 62 Humboldt Clam Beach Comment
  BLMAR561  Glyceria elata Clara Sander 2009-8-21 561 Humboldt Lacks Creek, in a ditch near where main lacks Creek parking lot is to be 975 Comment
  HSC10079  Glyceria fluitans J. P. Tracy 1933-7-20 19801 Humboldt Arcata bottom 15 Comment
  UC1199056  Glycyrrhiza lepidota Joseph P. Tracy 1935-5-30 13913 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC53977  Gnaphalium palustre Griswold, Butler 1979-7-11 7051 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  HSC56965  Gnaphalium palustre Overton, Butler 1979-7-23 9488 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  UCD132406  Gnaphalium palustre Linda M. Barker 1976-7-5 1639 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  CAS-BOT-BC302534  Gnaphalium palustre Doris K. Kildale 1925-6-30 846 Humboldt Buhne's [Buhne] Point Comment
  CDA6019  Gnaphalium palustre E. C. Whitney 1961-7-2 Humboldt A. Hartman property, McKinnleyville. 0 Comment
  POM174074  Gnaphalium sphaericum Joseph P. Tracy 1918-9-1 5097 Humboldt Newells Camp, around Humboldt Bay. On old Kneeland Prairie Road. 457 Comment
  HSC54227  Goodyera oblongifolia Griswold, Butler 1979-7-12 7293 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  HSC98915  Goodyera oblongifolia Cara Witte 2008-8-16 1028 Humboldt Ammon Ridge Road. Approximately 1/4 mile east of intersection with National Forest 1. 1548 Comment
  RSA12431  Gratiola ebracteata Carl B. Wolf 1934-7-2 5863 Humboldt At edge of small lake at Snow Camp. (Mts. east of Korbel). 1372 Comment
  UC582586  Gratiola ebracteata Joseph P. Tracy 1936-6-28 15022 Humboldt Bald Mountain , at Lake Prairie (at Lake Prairie) 1066 Comment
  HSC5720  Grindelia hirsutula J. F. Knezevich 1968-5-14 437 Humboldt 13 mi. S of Ferndale at Cape Mendocino 0 Comment
  JEPS93179  Grindelia hirsutula Margriet Wetherwax and Kevin Downing 1993-8-9 2458 Humboldt Eureka Slough Humboldt Bay (s side, near Bayside Rd. and Myrtle Marsh, at end of road to church, on e side of bay, just n of Eureka) 5 Comment
  UC1118561  Grindelia hirsutula G. T. Nordstrom 1937-7-1 1444 Humboldt 1.6 mi w Orick; Orick Quad. 0 Comment
  UC637144  Grindelia hirsutula Edward Lee 1934-8-17 1148 Humboldt e shore Big Lagoon (35 mi n of Eureka); e shore of Big Lagoon 3 Comment
  UC665534  Grindelia hirsutula H. E. Parks Aug 1 1941-Sep 1 1941 24201 Humboldt near Arcata Comment
  CHSC56525  Grindelia stricta var. platyphylla L. P. Janeway 1983-9-24 697 Humboldt 10-30 ft from water line of Big Lagoon, at south corner of county campground. 3 Comment
  RSA638980  Grindelia stricta var. stricta R. F. Thorne, Percy C. Everett 1965-8-7 35204 Humboldt Samoa Peninsula. 0 Comment
  UC525563  Hackelia californica Joseph P. Tracy Jul 16 1930-Jul 19 1930 9024 Humboldt in forest near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  RSA377548  Hastingsia alba Brad W. Klipfel 1973-7-1 116 Humboldt Along ridge trail south east of North Trinity Mountain 1829 Comment
  UC450223  Hazardia whitneyi var. discoidea Joseph P. Tracy 1919-9-23 5287 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  UCD128250  Hedera helix Linda M. Barker 1976-9-3 1687 Humboldt 3 miles west of Arcata. Comment
  HSC99088  Helenium bigelovii Cara Witte 2008-8-6 1010 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1486 Comment
  RSA168831  Helenium bigelovii Joseph P. Tracy 1949-8-11 18462 Humboldt Snow Camp. 1402 Comment
  CAS-BOT-BC306613  Helenium bigelovii Doris K. Kildale 1925-8-15 1173 Humboldt Elk Horn Prairie - Trinity Summit 1539 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
  CAS-BOT-BC306871  Helenium bolanderi L. R. Abrams; R. Bacigalupi 1922-6-25 8261 Humboldt Between Trinidad and Big Lagoon Comment
  JEPS35541  Helenium puberulum W. L. Jepson 1936-8-13 17892 Humboldt Philipsville S. Fk. Eel River Comment
  UC32241  Helenium puberulum C. C. Marshall 1888-1-1 Humboldt Comment
  HSC39775  Helminthotheca echioides Peter Sorensen 1976-8-19 Humboldt Woodley Island Comment
  UC1223171  Helminthotheca echioides Joseph P. Tracy 1948-8-8 18098 Humboldt 2 mi w Bridgeville Comment
  CAS-BOT-BC310077  Hemizonella minima Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC306037  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1925-7-12 7200 Humboldt Northern Coast Ranges. Trinity River Valley, near the South Fork 304 Comment
  UC180205  Heracleum lanatum Joseph P. Tracy 1914-6-14 4511 Humboldt Carlotta North Coast Ranges, Carlotta 60 Comment
  HSC48812  Heracleum maximum Brad Klipfel 1973-7-31 226 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC74502  Heracleum maximum Gail Newton 1980-8-10 2049 Humboldt Near Blake Mtn. 1707 Comment
  HSC21508  Heracleum maximum B. R. Templeton 1962-5-15 Humboldt Hwy 101 N of Arcata Comment
  CDA31699  Heterotheca oregona M. K. Beyers, I. Shepardson 2009-9-13 244 Humboldt In dry portion of the western side of the Eel River, near the base of the entrance of an inlet creek, that runs underneath State Route 254 (Avenue of the Giants) and Highway 101 here. 0 Comment
  UC667103  Heuchera merriamii Joseph P. Tracy 1935-7-24 14172 Humboldt near Ranger Station Trinity Summit 1828 Comment
  HSC100650  Heuchera micrantha Carl C. Marshall Jun 1887 407 Humboldt Garberville. Comment
  HSC20194  Heuchera micrantha P. N. Slattery 1963-4-27 44 Humboldt Clam Beach Comment
  HSC45609  Heuchera micrantha Diane L. Reed 1978-5-7 66 Humboldt E fork of Willow Creek, 34 mi. from US 101 on state Hwy. 299 Comment
  CHSC1635  Heuchera micrantha var. pacifica M. Underhill 1952-7-12 Humboldt Coastal cliffs. 3 Comment
  CAS-BOT-BC312398  Hieracium albiflorum Carl D. Duncan 1920-9-28 s.n. Humboldt Hoopa Comment
  HSC44549  Hieracium albiflorum Brad Klipfel 1973-7-15 168 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC57023  Hieracium albiflorum Overton, Butler 1979-7-24 9640 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  CAS-BOT-BC312396  Hieracium albiflorum Henry M. Pollard 1947-9-1 s.n. Humboldt Naer summit of Somes Mountain, Orleans region 1219 Comment
  UC582410  Hieracium greenei Joseph P. Tracy 1935-7-29 14340 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  UC165196  Hieracium nudicaule Joseph P. Tracy 1909-8-1 3066 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC100488  Hierochloe macrophylla Carl C. Marshall 353 Humboldt S side of Table Bluff. Comment
  UC205670  Hierochloe occidentalis Joseph P. Tracy 1918-4-21 4882 Humboldt around Humboldt Bay (old Kneeland Road); Northern Coast Ranges 304 Comment
  HSC13454  Hippuris vulgaris D. E. Anderson 1965-10-25 4161 Humboldt Georgia-Pacific Co., N Big Lagoon Comment
  HSC26180  Holcus lanatus J. P. Smith, Steve Selva 1970-6-14 3833 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC27024  Holcus lanatus Brad W. Klipfel 1973-8-17 273 Humboldt Big Lagoon Park, at the Sphagnum bog. Comment
  JEPS71225  Holcus lanatus William S. Cooper 1925-7-29 121 Humboldt Samoa Comment
  SEINET200828 Image available Holcus lanatus J. P. Tracy 1914-9-13 4626 Humboldt Eureka 0 Comment
  SEINET10591413  Holcus lanatus Huron H. Smith 1911-1 Smith 3772 Humboldt Comment
  HSC90677  Holcus mollis Gail Newton 1982-6-1 3568 Humboldt Elk River Wildlife Area, Eureka. Comment
  JEPS44652  Holodiscus discolor L. Constance 1934-6-4 812 Humboldt Look Prairie; Dyerville; Bull Cr. road; South Fork of Eel River; Look Prairie, and Bull Cr. road, to Dyerville. Comment
  UC1043493  Holodiscus discolor E. K. Balls 1954-5-25 19387 Humboldt 6.3 mi s of Ferndale (North Coast Range, Wild Cat Ridge); North Coast Range, Wild Cat Ridge Comment
  HSC10162  Hordeum brachyantherum C. E. Fellows 1965-5-18 85 Humboldt 50 yds. E of intersection of Bayside Cutoff and Hwy. 101 Comment
  UC1198713  Horkelia californica Joseph P. Tracy 1910-7-24 3159 Humboldt s side Humboldt Hill; Humboldt Bay 152 Comment
  UC1222320  Horkelia californica subsp. dissita Joseph P. Tracy 1950-7-6 19018 Humboldt 3 mi s Burr Valley (High meadow); Buck Mountain 1158 Comment
  CHSC97957  Horkelia tridentata subsp. flavescens April A. Allard; Gregory D. O'Connell 2005-6-24 16 Humboldt Roadside meadow. 1648 Comment
  HSC34653  Horkelia tridentata var. flavescens D. E. Anderson 1972-6-20 5726 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC96954  Horkelia tridentata var. flavescens Ryoko Ito, Shauna McDonald 2007-6-11 3 Humboldt 11.9 mi. above Hwy. 299 1585 Comment
  HSC58547  Hosackia crassifolia Overton, Butler 1979-7-24 9601 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  HSC100883  Hosackia gracilis Carl C. Marshall Apr 1885 113 Humboldt Coast region everywhere. Comment
  HSC99396  Hydrophyllum fendleri var. albifrons K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 45 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA298345  Hydrophyllum fendleri var. albifrons J. O. Sawyer, M. A. Ericksen 1979-6-23 3395 Humboldt Slopes below Mill Creek Lakes. 1585 Comment
  UC177201  Hydrophyllum tenuipes Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3617 Humboldt near Hydesville; Northern Coast Region 30 Comment
  JEPS1635  Hydrophyllum tenuipes Joseph P. Tracy 1940-5-17 16545 Humboldt flat near McClellan Ranch house; McClellan Mt. 609 Comment
  UC562602  Hydrophyllum tenuipes Joseph P. Tracy 1924-6-1 6690 Humboldt Lawrence Creek Northern Coast Ranges (at crossing of Kneeland Road) 457 Comment
  HSC39621  Hypericum anagalloides Thomas W. Nelson, Jane Nelson 1976-6-15 2724 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  JEPS66787  Hypericum anagalloides W. H. Shockley 1879-1 Humboldt Eureka Comment
  CAS-BOT-BC400793  Hypericum anagalloides C. L. Hitchcock; J. S. Martin 1939-7-14 5442 Humboldt 7 miles east of Shelter Cove 243 Comment
  CAS-BOT-BC401236  Hypericum perforatum Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC58239  Hypericum perforatum G. L. Clifton, Griswold 1979-8-2 12403 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  SEINET10755374  Hypericum perforatum J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13015 Humboldt On U.S. 101, near Holmes, 1.76 km south of Stafford Road. Comment
  UC1173718 Image available Iliamna latibracteata Joseph P. Tracy 1939-7-23 16350 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
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Feb 27 2012
  UC902182 Image available Iliamna latibracteata Joseph P. Tracy 1949-9-1 18535 Humboldt Along Trinity Highway Willow Creek Canyon. 762 Comment
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Feb 27 2012
  UC249686  Ionopsidium acaule Joseph P. Tracy 1921-4-17 5430 Humboldt Ferndale Cemetary; Northern Coast Ranges, Ferndale Cemetary 30 Comment
  HSC13865  Iris douglasiana J. J. Wagoner 1965-4-3 9 Humboldt 16 mi. N of Trinidad, W of Hwy. 101 in Dry Lagoon State Beach Park 24 Comment
  POM87683  Iris douglasiana Le Roy Abrams, Rimo C. Bacigalupi 8273 Humboldt Big Lagoon, south of Orick. Comment
  UC1565799  Iris douglasiana R. Spellenberg 1990-7-10 10240 Humboldt 11 mi s Berry Summit (on Calif. Hwy. 299) on U.S.F.S. 1 (11 air mi e of Burnt Ranch, extreme e edge of Humboldt County) 1432 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
  HSC13858  Iris douglasiana E. W. Styskel 1963-5-19 47 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 305 Comment
  HSC32383  Iris douglasiana Linda M. Barker 1974-5-11 185 Humboldt Redwood National Park, W of Bald Hills Rd., NW of Gans Prairie 366 Comment
  HSC100501  Iris longipetala Carl C. Marshall May 1886 157 Humboldt Everywhere. Comment
  JEPS86127  Iris macrosiphon Wayne Roderick 1966-5-5 Humboldt ca 5 mi n Bridgeville 609 Comment
  BLMAR624  Iris purdyi Jennifer Wheeler 2011-6-1 624 Humboldt Lacks Creek, Bair rd near pickle springs 609 Comment
  HSC104075  Iris purdyi S. Carothers 2001-6-7 Humboldt Six Rivers National Forest; Lassics Botanical Area; below blue serpentine ridge, above Rd. 1S11 1585 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
  JEPS93202  Iris tenax subsp. klamathensis Carol A. Wilson 1986-5-15 86 -4 Humboldt near Orleans (along road (Orleans Alternate/Ishi Pishi Rd) where crosses Ishi Pishi Bridge just s of Somes Bar); Orleans Alternate/Ishi Pishi Rd Comment
  HSC44639  Iris tenuissima Diane L. Reed 1978-4-22 34 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC79260  Iris tenuissima T. Jimerson, J. Pageau 1979-5-1 439 Humboldt 0.2 mi. S of Hwy. 96 on Ishi Pishi Rd., Orleans Comment
  HSC79345  Iris tenuissima T. Jimerson, J. Pageau 1979-5-1 442 Humboldt 3.35 mi. S of Hwy. 96 on Red Cap Rd., Orleans Comment
  JEPS60152  Isoetes bolanderi Joseph P. Tracy 1937-8-12 15650 Humboldt Snow Camp 1402 Comment
  CHSC57145  Isolepis cernua L. P. Janeway 1983-9-24 700 Humboldt 10-30 ft from water line of Big Lagoon at county campground (south corner of the lagoon). 3 Comment
  BLMAR304  Jaumea carnosa Jennifer Anthony-Wheeler 2002-7-1 304 Humboldt South Spit 6 Comment
  CHSC56526  Jaumea carnosa L. P. Janeway 1983-9-24 705 Humboldt Sand pit next to Big Lagoon. 3 Comment
  RSA246799  Juncus balticus subsp. ater Robert F. Thorne, Percy C. Everett 1965-8-9 35290 Humboldt Big Lagoon. 3 Comment
  UC2932  Juncus bolanderi State Survey June 1867 6584 Humboldt near Elk Ridge Comment
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Jul 31 2010
  UCD141493  Juncus effusus K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 609 Comment
  HSC56988  Juncus ensifolius Walter Overton, Marvin Butler 1979-7-23 9551 Humboldt Near Titlow Hill, close to the town of Willow Creek 1280 Comment
  UCD141534  Juncus ensifolius Malcolm A. Nobs; S. Galen Smith 1949-8-3 1199 Humboldt Southern outskirts of Eureka. Comment
  HSC40127  Juncus exiguus Thomas W. Nelson, James Nelson 1976-7-28 3075 Humboldt Between Alder Springs and road to Pine Mtn. 1524 Comment
  HSC14065  Juncus hesperius R. L. Jarvis 1962-4-7 13 Humboldt E of Hwy. 101, 4 mi. S of Eureka 0 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
  HSC14029  Juncus lescurii C. B. Wolf 1927-8-29 1205 Humboldt Devil's Gate, S of Cape Mendocino. Comment
  POM203238  Juncus occidentalis M. S. Jussel 1931-5-2 s.n. Humboldt 20 mi. N. of Garberville. Comment
  UC1222344  Juncus occidentalis Joseph P. Tracy 1953-6-26 19561 Humboldt halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road) Comment
  UC1152084  Juncus tenuis Joseph P. Tracy 1928-6-24 8464 Humboldt Valley of South Yager Creek 762 Comment
  UCD117516  Kalmia polifolia Joseph P. Tracy 1942-6-23 17262 Humboldt Local at 'Water Dog Lakes,' Trinity Summit. 1889 Comment
  SEINET2031088 Image available Kalmia polifolia Joseph P. Tracy 1935-1 14261 Humboldt Trinity Summit; meadows at Water Dog Lakes 1829 Comment
  JEPS66616  Kalmia polifolia subsp. microphylla Joseph P. Tracy 1935-7-26 14261 Humboldt Trinity Summit, at Water Dog Lakes Water Dog Lakes; Trinity Summit, Water Dog Lakes 1828 Comment
  CAS-BOT-BC235886  Keckiella corymbosa Doris K. Kildale 1927-8-7 3862 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC235893  Keckiella corymbosa Milo S. Baker 1923-8-25 336 Humboldt Near Richardson Grove Comment
  NY790325  Keckiella lemmonii J. P. Tracy 1929-8-4 8648 Humboldt Ridge between Bull Creek and Mattole River 762.0 Comment
  HSC73476  Koeleria macrantha Gail Newton 1980-7-11 1338 Humboldt Near Red Mtn. 1341 Comment
  JEPS13532  Kopsiopsis strobilacea Mrs. Virginia P. Fox July 1919 Humboldt Bald Mountain Comment
  UC668198  Lagophylla ramosissima Joseph P. Tracy 1938-7-4 15993 Humboldt Valley of South Yager Creek 762 Comment
  HSC62179  Lapsana communis J. M. DiTomaso 1980-11-4 1997 Humboldt SE of junction of 11th St. and Hwy. 101., Arcata Comment
  UC30471  Lasthenia californica subsp. macrantha Bolander Humboldt Comment
  CAS-BOT-BC352933  Lasthenia glaberrima Joseph P. Tracy; Harold E. Parks 1935-6-16 11274 Humboldt Buck Mt. Lower N.W. slopes 792 Comment
  SEINET3860275  Lathyrus biflorus Thomas W. Nelson, Jim Nelson 1980-6-10 5432 Humboldt Blocksburg Quadrangle.; 0 1372 Comment
  UC1368672  Lathyrus glandulosus J. P. Tracy 1946-6-23 17595 Humboldt near the Dan McBride place at se end of Kneeland Comment
  UC495705  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1927-4-10 7893 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC14747  Lathyrus littoralis R. E. Hafenfeld 1965-5-9 45 Humboldt 1/4 mi. N of Squashan Cr. near Gold Bluff Beach Rd. Comment
  UC494114  Lathyrus littoralis H. E. Parks 1930-5-24 798 Humboldt Little River Lagoon Comment
  RSA554595  Lathyrus littoralis Walter Wisura 1993-5-9 4913 Humboldt Sand dunes near Samoa. Comment
  HSC33771  Lathyrus tingitanus Lon Hall 1975-5-24 383 Humboldt Samoa Dunes, off Samoa Blvd., across from the boat landing Comment
  UC931682  Lathyrus torreyi C. L. Hitchcock 1949-6-7 19084 Humboldt ca 15 mi e Blue Lake (along Highway 299) Comment
  RSA74591  Lathyrus tracyi C. L. Hitchcock 1949-6-8 19086 Humboldt 3 miles SE of Willow Creek, along Highway #299. Comment
  UCD106540  Lathyrus vestitus var. ochropetalus C. L. Hitchcock 1949-6-7 19083 Humboldt 1/2 mile S of Pepperwood, along Highway 101. Comment
  CAS-BOT-BC325995  Layia carnosa David D. Keck; J. Clausen 1935-6-16 3381 Humboldt Mouth of Little River. Comment
  UC183700  Ledum glandulosum Joseph P. Tracy 1913-9-9 4399 Humboldt Patrick's Point; Northern Coast Ranges, Patrick's Point 30 Comment
  CAS-BOT-BC339129  Leontodon saxatilis subsp. saxatilis H. S. Reed 1941-7-26 s.n. Humboldt Near Trinidad Comment
  HSC12416  Leontodon saxatilis subsp. saxatilis D. Santana Oct 1970 27 Humboldt Road side near Big Lagoon Comment
  HSC59676  Leontodon saxatilis subsp. saxatilis George Kirn 1977-10-30 Humboldt 1/2 mi. from mouth of Elk River 8 Comment
  HSC71061  Leptosiphon bicolor Thomas W. Nelson, Jane P. Nelson 1980-5-30 3395 Humboldt McKeown Ranch along rd. to Anderson's Ford 854 Comment
  SBBG5980  Leptosiphon bicolor H. and M. Dearing 1939-5-24 3419 Humboldt pass, Dyerville to Mattole Rd, W of Panther Gap Comment
  BLMAR78  Leptosiphon bicolor Jennifer Anthony-Wheeler 1994-6-2 78 Humboldt IAQUA, growing beside logging rd, dry, open grassland 780 Comment
  UCD134130  Leucanthemum vulgare H. E. Parks; S. T. Parks 1943-8-1 24257 Humboldt Spruce Cove, Trinidad. 60 Comment
  HSC81933  Leucanthemum vulgare Thomas W. Nelson, Jane P. Nelson 1979-7-3 4960 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  RSA249391  Lewisia nevadensis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5590 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  UC1100250  Leymus X vancouverensis Malcolm A. Nobs and S. Galen Smith 1949-8-3 1204 Humboldt ca 2 mi n Eureka (salt marshes bordering bay); Humboldt Bay Comment
  CAS-BOT-BC436499  Ligusticum apiifolium John Thomas Howell 1937-7-31 13714 Humboldt Boise Creek Comment
  UC183660  Ligusticum apiifolium Joseph P. Tracy 1912-8-3 3970 Humboldt opposite Buck Mt. (Dinsmore's Ranch, Van Duzen R. Valley); Northern Coast Ranges, Van Duzen R. Valley, Dinsmore's Ranch 762 Comment
  UC642251  Ligusticum apiifolium Joseph P. Tracy 1930-8-3 9153 Humboldt McClellan Mt. 762 Comment
  UC642267  Ligusticum californicum Joseph P. Tracy 1937-8-12 15633 Humboldt Snow Camp 1402 Comment
  HSC56059  Ligusticum grayi G. L. Clifton, Terry Griswold 1979-7-31 11695 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  RSA168923  Lilaea scilloides Joseph P. Tracy 1950-6-18 18844 Humboldt Cape Mendocino, near the ocean shore, south of point of the Cape: Davis Creek. 3 Comment
  UC672870  Lilaea scilloides Joseph P. Tracy 1933-5-20 12274 Humboldt back of Cape Mendocino (Cape Ridge); Cape Ridge 304 Comment
  CAS-BOT-BC130641  Lilium kelloggii Albert M. Vollmer; Ira L. Wiggins 1940-7-4 6 Humboldt On Orick-Weitchpec road, 15 miles west of Weitchpec 944 Comment
  CAS-BOT-BC130645  Lilium kelloggii A. M. Vollmer; L. Beane 1953-7-1 119 Humboldt Freshwater Comment
  HSC15575  Lilium kelloggii D. E. Anderson 1962-7-14 2250 Humboldt 2 mi. W of Kneeland Post Office Comment
  CAS-BOT-BC130686  Lilium occidentale Doris K. Kildale 1925-6-30 1337 Humboldt On road to Humboldt Country Club 7 mi from Eureka Comment
  CAS-BOT-BC130688  Lilium occidentale A. M. Vollmer; L. Beane 1951-7-1 s.n. Humboldt Table Bluff, near Eureka Comment
  UC176167  Lilium occidentale Joseph P. Tracy 1912-9-1 3982 Humboldt Eureka Northern Coast Region (near Ryan's Slough Hill) 0 Comment
  SEINET12050872  Lilium occidentale F. H. Utech 1977-1 Humboldt Comment
  CAS-BOT-BC132960  Lilium rubescens A. M. Vollmer; L. Beane 1951-6-1 147 Humboldt On trail to Blohn's cabin, Bald Mountain, east of Korbel Comment
  JEPS62029  Lilium rubescens Mrs. M. H. Manning 1901-7-27 319 Humboldt Bald Hills Comment
  JEPS19592  Limnanthes douglasii Lincoln Constance 1934-5-29 721 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  UC673262 Image available Limnanthes douglasii Lincoln Constance and Reed C. Rollins 1942-5-21 3000 Humboldt two mi n Harris; Klamath-Siskiyou Region; Siskiyou Region, Humboldt Co. 762 Comment
  UC1198582  Linanthus acicularis Joseph P. Tracy 1933-5-21 12214 Humboldt McClellan Mt. 609 Comment
  UC908636  Linanthus acicularis Joseph P. Tracy 1929-5-5 8563 Humboldt Miranda, along South Fork of Eel River Northern Coast Ranges, South Fork of Eel River 121 Comment
  UC1005678  Linanthus androsaceus Frank W. Gould 1939-5-30 834 Humboldt about 25 mi due e Eureka (near lower end of mountain road); Horse Mountain 304 Comment
  UC427875  Linanthus androsaceus H. E. Parks, J. P. Tracy 1930-5-25 794 Humboldt vicinity Bridgeville; Laribee Valley Comment
  HSC100667  Linaria canadensis Carl C. Marshall Jun 1886 237 Humboldt Trinidad. Comment
  HSC99449  Listera caurina K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 99 Humboldt Near North Trinity Mtn., 11. 9 mi. E of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest 1372 Comment
  UC1103033  Listera caurina Joseph P. Tracy 1932-7-20 10740 Humboldt Forks of Tish-Tang-a-tang Creek Trinity Summit 1219 Comment
  UC666981  Listera caurina Joseph P. Tracy 1937-8-12 15648 Humboldt Snow Camp 1402 Comment
  HSC45233  Listera convallarioides Thomas W. Nelson, Jane P. Nelson 1977-7-4 3604 Humboldt Alder Springs 1524 Comment
  HSC104405  Listera cordata Arthur C. Grupe 2013-4-20 11 Humboldt Near Lord Ellis Summit; along Snow Camp Rd., ~500 ft. SE of its junction with Old Hwy. 200 701 Comment
  UC1193053  Lithocarpus densiflorus P. Zinke 1950-8-3 146 Humboldt 3 mi s Harris Post Office 914 Comment
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Nov 28 2009
  SEINET12034163  Lithocarpus densiflorus K. S. Erdman 1970-1 4793 Humboldt Redwood Natl Park naer Holter Ridge entrance on the Bald Hills road SE of Orick;T10N,R2E,Sec18 Comment
  UC400346  Lithocarpus densiflorus unknown Humboldt above Korbel Comment
  CAS-BOT-BC36149  Lithocarpus densiflorus var. densiflorus Doris K. Kildale 1928-5-27 5947 Humboldt Kneeland Prairie Comment
  CAS-BOT-BC36150  Lithocarpus densiflorus var. densiflorus L. B. Kildale 1931-8-9 s.n. Humboldt [Threc] Creeks on Willow Creek road Comment
  RSA174011  Lithocarpus densiflorus var. densiflorus Robert F. Thorne 1957-9-2 19004 Humboldt Sandy margin of branch of the Eel River at Burlington State Park, just S of Weott. Comment
  SFV7744  Lithocarpus densiflorus var. densiflorus T. Gordon, K. Kimbrough 1975-8-22 1226 Humboldt Humboldt Redwoods State Park. 61 Comment
  HSC97180  Lithophragma campanulatum Benjamin Hart, Erin Lonergan 2007-6-13 10 Humboldt 1 mi. E of USFS Rd. NF1 on 5N04 1524 Comment
  UC1225758  Lobularia maritima Joseph P. Tracy 1947-7-8 17760 Humboldt Eureka 30 Comment
  CAS-BOT-BC283400  Lolium multiflorum Henry M. Pollard 1948-7-27 s.n. Humboldt Road to Red Cap Creek near Orleans Comment
  SEINET194910 Image available Lolium perenne A. A. Heller 1923-7-9 13779 Humboldt Arcata near 10 Comment
  UC188800  Lolium temulentum Jos. Burtt Davy 1899-7-30 6205 Humboldt Russ Ranch Comment
  HSC65515  Lomatium ciliolatum var. ciliolatum M. A. Baker 1980-6-7 1776 Humboldt Near Brush Mtn. 1128 Comment
  RSA28899  Lomatium dissectum var. dissectum Lincoln Constance, A. A. Beetle 1940-5-17 2617 Humboldt NW slope, Lower slopes of Buck Mtn, near Eureka. 793 Comment
  UC642328  Lomatium dissectum var. dissectum Joseph P. Tracy 1928-6-24 8460 Humboldt Valley of S. Yager Creek 762 Comment
  HSC74284  Lomatium macrocarpum M. A. Baker 1980-7-11 2784 Humboldt Near Red Mtn. 1341 Comment
  UC154251  Lomatium macrocarpum Joseph P. Tracy 1908-6 2835 Humboldt n.w. slope Buck Mt. 1219 Comment
  CHSC97956  Lomatium nudicaule Kaylea Eickhoff; Cara M. Witte 2005-6-3 1 Humboldt White Oak Opening, 19.3 miles south of Hwy. 299 on NF1. UTM 0441136, 4507151. 1240 Comment
  UC1197140  Lomatium utriculatum Joseph P. Tracy 1924-3-16 6626 Humboldt Northern Coast Ranges, Garberville 121 Comment
  UC1714579  Lomatium utriculatum J. P. Tracy 1904-5 2116 Humboldt immediate vicinity Eureka (restricted to small patch on bluff at Bucksport); Bucksport 0 Comment
  POM161636  Lonicera ciliosa Joseph P. Tracy 1921-6-19 5836 Humboldt Brannan Mountain; viz. ridge north of Willow Creek, between Willow and Campbell creeks; North Coast Ranges. Comment
  RSA168961  Lonicera conjugialis Joseph P. Tracy 1950-8-8 19287 Humboldt Croghan Hole, on Trinity Summit 1677 Comment
  UC1239555  Lonicera hispidula var. vacillans Joseph P. Tracy 1915-6-27 4658 Humboldt near Hydesville; Northern Coast Ranges, Yager Creek 60 Comment
  UCSB10475  Lonicera involucrata Phillips, Priscilla 1958-6-10 Humboldt 0.8 mi. south of intersection of Highway 101 and old highway parallel to it, which runs between Trinidad and Colonial Inn, on the old road Comment
  SEINET11168851 Image available Lonicera involucrata Unknown 1974-8-11 Humboldt Trinidad Comment
  CAS-BOT-BC241487  Lonicera involucrata var. ledebourii Doris K. Kildale 1927-3-25 3002 Humboldt Humboldt Hill near Humboldt Bay Comment
  HSC63083  Lonicera involucrata var. ledebourii David Wheeler 1979-4-20 71 Humboldt Clam Beach Ponds, N pond, 0.25 mi. S of Crannel Rd. between the frontage road and Hwy. 101 Comment
  OBI6309  Lonicera involucrata var. ledebourii Joseph P. Tracy 1943-3-21 17413 Humboldt North Coast ranges Comment
  RSA455683  Lonicera involucrata var. ledebourii Charlotte M. Hoak 1931-7-15 s.n. Humboldt Alton. Comment
  UC1239556  Lonicera involucrata var. ledebourii Joseph P. Tracy 1923-6-17 6269 Humboldt Big Lagoon 3 Comment
  UC1239557  Lonicera involucrata var. ledebourii Joseph P. Tracy 1901-4-21 1033 Humboldt Eureka Northern Coast Region 0 Comment
  UC602564  Lonicera involucrata var. ledebourii Joseph P. Tracy 1937-6-20 15343 Humboldt 10 miles upstream from mouth Bear River 152 Comment
  CAS-BOT-BC200912  Lotus A. M. Vollmer; L. Beane 1951-6-11 141 Humboldt Along Van Duzen River, at Bridgeville Comment
  JEPS25684  Lotus aboriginus P. C. Hutchison 1961-5-22 2007 Humboldt 14.3 mi e Arcata junction with U.S. Hwy. 101 (on Hwy 299) Comment
  UC179940  Lotus aboriginus Joseph P. Tracy 1914-9-6 4599 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  UC534996  Lotus aboriginus H. E. Parks Jul 1932 Humboldt Bishop Pine Lodge Trinidad 60 Comment
  HSC28150  Lotus aboriginus Chris Gist 1971-6-19 39 Humboldt Hwy. 299, 10 mi. E of Blue Lake. Comment
  POM199441  Lotus aboriginus H. E. Parks, J. P. Tracy, C. R. Parks 1930-9-15 0762 Humboldt Kneeland, Bald Hills. Comment
  HSC48615  Lotus corniculatus Mark Flippo 1978-5-23 68 Humboldt Mckinleyville, Bella Vista Rd. Comment
  UCD106722  Lotus corniculatus S. P. Lynch 1975-6-19 1368 Humboldt Along U.S. Hwy 101 at Loleta. Comment
  UC1052840  Lotus crassifolius var. crassifolius W. L. Colwell 1955-6-7 24 Humboldt 3 mi w Weott (0.5 mi n of Grasshopper Mountain Lookout, Quad. 29-B-3) 914 Comment
  HSC97945  Lotus crassifolius var. crassifolius Cara Witte 2007-6-26 357 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36A. 1348 Comment
  RSA254790  Lotus denticulatus Thomas W. Nelson, James Nelson, A. Nelson 1973-5-28 949 Humboldt McKeown Ranch north of Dinsmore. Comment
  HSC98247  Lotus formosissimus D. E. Anderson 1963-5-25 2485 Humboldt 2-3 mi. N of Capetown Comment
  UC169330  Lotus humistratus Joseph P. Tracy 1912-7-26 3833 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC45614  Lotus humistratus Diane L. Reed 1978-5-7 51 Humboldt Friday Ridge Road, near intersection with Hwy. 299 Comment
  UC1197292  Lotus humistratus Joseph P. Tracy 1931-6-14 9575 Humboldt Alton, along Van Duzen River Northern Coast Ranges, Van Duzen River 30 Comment
  CDA27276  Lotus micranthus T. C. Fuller 1958-6-17 1722 Humboldt Petrolia, Lower Mattole. 0 Comment
  RSA293205  Lotus micranthus J. P. Smith 1973-5-26 6837 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC1947582  Lotus oblongifolius var. oblongifolius Joseph P. Tracy 1919-5-31 5176 Humboldt near, at Lack Pond Willow Creek; Northern Coast Ranges, Trinity River Valley, Lack Pond 152 Comment
  UCD106706  Lotus uliginosus R. Tofsrud 1947-6-29 s.n. Humboldt Near Loleta. Comment
  CAS-BOT-BC201191  Lupinus Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  RSA167388  Lupinus adsurgens var. adsurgens Joseph P. Tracy 1946-6-15 17567 Humboldt Ski Lodge, Horse Mtn. 1220 Comment
  SEINET12170729  Lupinus albifrons E. A. York 1990-1-10 2659 Humboldt USGS Redwood Field Station, Arcata Comment
  HSC58413  Lupinus andersonii Griswold, Butler 1979-7-12 7173 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC14790  Lupinus bicolor J. R. Woodside 1963-5-19 1 Humboldt 1 1/4 mi. N of Fairhaven Comment
  HSC71165  Lupinus bicolor Thomas W. Nelson 1977-5-30 3411 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  HSC14800  Lupinus bicolor Eugene Andreuccetti 1964-4-26 20 Humboldt 1 mi. N of Garberville on Hwy. 101 Comment
  HSC48778  Lupinus bicolor Brad Klipfel 1974-5-11 339 Humboldt SW side of Big Lagoon Comment
  UC205453  Lupinus bicolor Joseph P. Tracy 1919-5-31 5149 Humboldt along Willow Creek ((tributary of Trinity River) near its mouth); Northern Coast Ranges, trib Trinity River, Willow Creek 152 Comment
  HSC58603  Lupinus latifolius G. L. Clifton, Griswold 1979-7-25 10856 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC58656  Lupinus latifolius subsp. viridifolius G. L. Clifton, Griswold 1979-7-31 11743 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  SBBG3657  Lupinus latifolius var. viridifolius H. and M. Dearing 1939-5-24 3416 Humboldt 5 mi S of Alton Comment
  UC1223259  Lupinus lepidus var. lobbii Joseph P. Tracy 1940-7-7 16672 Humboldt ridge back Clear Lake (Grouse Mountain); , ridge back of Clear Lake 1524 Comment
  SD53194  Lupinus littoralis Darley F. Howe 1962-5-22 3259 Humboldt 0.5 mile north of Orick on Highway 101. 29 Comment
  UC161546 Image available Lupinus microcarpus Joseph P. Tracy 1911-7-4 3280 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River, Willow Creek; Willow Creek, Humboldt Co. 152 Comment
  SD42562  Lupinus polyphyllus Carl B. Wolf 1937-8-11 9144 Humboldt 0.5 mile east of Alton. 21 Comment
  UC774984  Lupinus polyphyllus var. polyphyllus Carl B. Wolf 1937-8-11 9144 Humboldt 1/2 mi e Alton; e of Alton 21 Comment
  RSA414240  Lupinus sellulus subsp. ursinus Thomas W. Nelson, Jane Nelson, A. P. Nelson 1977-7-4 3583 Humboldt Along west side of road north from Alder Springs. 1524 Comment
  POM10718  Lupinus sellulus var. medius H. P. Chandler 1498 Humboldt Klamath River. 427 Comment
  UC502996  Lupinus tracyi Joseph P. Tracy 1932-7-15 10597 Humboldt ridges e Corral Prairie (Trinity Summit); Klamath Mountains, , e of Corral Prairie 1828 Comment
  HSC14890  Lupinus variicolor J. W. Johnson 1961-9-10 1114 Humboldt Arcata, Christenson Farm or Hunt Farm, Samoa Peninsula Comment
  BLMAR289  Luzula comosa Jennifer Anthony-Wheeler 2000-4-18 289 Humboldt King range, growing on rocky ridgeline, outcrop/vista in millcrk forest 402 Comment
  HSC70778  Luzula comosa R. York 1980-5-17 549 Humboldt Near Le Perron Peak 1066 Comment
  HSC96237  Luzula comosa April A. Allard, Gregory D. O'Connell 2005-6-3 2 Humboldt 19.3mi S of Hwy. 299 on NF1 1246 Comment
  POM126144  Luzula comosa Joseph P. Tracy 1923-6-24 6368 Humboldt Bald Mountain. In cold wet meadow near High Prairie. 1067 Comment
  CAS-BOT-BC436746  Luzula comosa var. comosa Harley P. Chandler 1901-5-1 1159 Humboldt North Coast Ranges: Humboldt Bay 30 Comment
  RSA20816  Lycopodium clavatum C. B. Wolf 1937-9-10 9314 Humboldt 3.4 miles E of Trindad at hammond Lumver Co. s Camp 20 (abandoned) 152 Comment
  HSC93256  Lycopodium clavatum D. K. Walker 1998-7-16 Humboldt Redwood National Park, Larry Damin Rd., 0.5 mi. from Lost Man Creek, on old logging road. Comment
  RSA21016  Lysichiton americanus Carl B. Wolf 1937-9-11 9325 Humboldt Redwood Highway, 3 miles N of Orick at Davison s Ranch on Prairie Creek. 61 Comment
  UC1222700  Lysichiton americanus Joseph P. Tracy 1950-4-20 18612 Humboldt along Van Duzen R. 1 mi. w. Dinsmore's; Van Duzen R. Comment
  HSC15935  Lythrum hyssopifolia W. C. Vinyard, D. E. Anderson 1961-10-12 Humboldt Humboldt State College Campus. Comment
  UC34191  Madia elegans Harley P. Chandler 1901-6-1 1409 Humboldt Klamath River North Coast Ranges 243 Comment
  UC673205  Madia elegans Lincoln Constance and Reed C. Rollins 1942-5-11 2874 Humboldt 5 mi s Hoopa; North Coast Ranges, Hoopa Valley 121 Comment
  HSC67886  Madia gracilis J. P. Smith 1973-5-26 6868 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC44087  Madia gracilis Thomas W. Nelson, Jane P. Nelson 1977-9-3 3725 Humboldt N of Alder Springs 1555 Comment
  UC175195  Madia gracilis Joseph P. Tracy 1913-6-22 4258 Humboldt Dinsmore's Ranch; Valley of Van Duzen River, Buck Mountain 762 Comment
  UC495629  Madia gracilis Joseph P. Tracy 1927-7-4 8229 Humboldt Lawrence Creek, at crossing of the Kneeland Road 609 Comment
  CHSC69499  Madia sativa Vernon Oswald; Lowell Ahart 1997-9-4 8854 Humboldt Samoa Dunes Recreation Area at the south end of the North Spit separating Humboldt Bay from the ocean. 0 Comment
  UCSC000290  Mahonia nervosa Beryl O. Schreiber 1934-6-5 1137 Humboldt road to Redding, 20 miles east of Blue Lake Redding, Blue Lake Comment
  HSC99058  Mahonia pinnata subsp. pinnata Cara Witte 2008-7-2 802 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  HSC15594  Maianthemum dilatatum Harvey Doerksen 1962-5-22 27 Humboldt Azalea Reserve State Park near Mad River Comment
  UCD139044  Maianthemum dilatatum Linda M. Barker 1976-5-13 1484 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC508505  Maianthemum dilatatum W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  RSA41939  Maianthemum dilatatum H. C. Cantelow 1935-5-30 s.n. Humboldt 8 miles north of Orick Comment
  HSC40028  Maianthemum racemosum subsp. amplexicaule Thomas W. Nelson, Jane P. Nelson 1976-6-22 2874 Humboldt Area at Goat Hill. 1666 Comment
  HSC41355  Maianthemum racemosum subsp. amplexicaule Brad Klipfel 1974-8-2 507 Humboldt Horse Mtn. Comment
  HSC99383  Maianthemum racemosum subsp. amplexicaule K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 32 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CAS-BOT-BC512769  Maianthemum stellatum Carl B. Wolf 1937-6-18 8887 Humboldt Table Bluff between Humboldt Bay and Eel River 30 Comment
  HSC45240  Maianthemum stellatum Thomas W. Nelson, Jane P. Nelson 1977-6-19 3509 Humboldt Alder Springs 1524 Comment
  RSA95019  Malacothrix floccifera F. W. Peirson 1923-7-9 3933 Humboldt Humboldt County State Park Comment
  CAS-BOT-BC540127  Malus domestica Jay B. Walker 1995-4-26 1386 Humboldt Six Rivers National Forest. Hwy 36. 2km W of town of Cobbs. 800 Comment
  UC176969  Malva nicaeensis Joseph P. Tracy 1912-6-9 3687 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  HSC59054  Marah oregana Thomas Wood 1979-4-20 121 Humboldt Along frontage Rd., parallel and E of Hwy. 101 at Patrick Creek Drive intersection, S of Patrick Creek. 6 Comment
  HSC7036  Marah oregana Francis Winter 1960-3-26 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  UC990712  Marah oregana Roxana S. Ferris 1951-9-5 12448 Humboldt Trinidad Head Comment
  RSA273320  Marah oregana J. D. Ackerman 1975-6-10 451 Humboldt 1 mile N of Samoa Bridge turnoff from Samoa Blvd., S of Manila, Humboldt Bay Comment
  UC1198477  Marah oregana Joseph P. Tracy 1940-5-17 16548 Humboldt McClellan Mt. 762 Comment
  RSA246904  Matricaria matricarioides R. F. Thorne, Percy C. Everett 1965-8-8 35269 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  UC160957  Medicago lupulina Harley P. Chandler June, 1901 1423 Humboldt Klamath River Northern Coast Ranges 304 Comment
  HSC14974  Medicago polymorpha Jack Rockwell 1962-5-12 74 Humboldt N of Bridgeville in hillside canyon 213 Comment
  POM161909  Melica californica var. nevadensis Joseph P. Tracy 1921-5-30 5491 Humboldt Kneeland Prairie. 762 Comment
  UC188886  Melica harfordii J. Burtt Davy 1899-6-19 5657 Humboldt Hoopa Mt. summit; North Coast Ranges Comment
  HSC75480  Melica subulata J. O. Sawyer 1980-7-18 3627 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC1145129  Melica subulata Joseph P. Tracy 1942-6-2 17100 Humboldt 2 mi n Bridgeville 609 Comment
  UCD88651  Melica subulata A. H. Murphy 1951-5-18 s.n. Humboldt K. Roscoe Ranch, Upper Mattole. Comment
  HSC15519  Melilotus albus C. Kline 1970-11-9 66 Humboldt .5 mi. N of Bayside, Bayside Rd. Comment
  UC577360  Mentha pulegium Joseph P. Tracy 1923-6-20 6336 Humboldt Briceland 304 Comment
  UC1198475  Mentzelia dispersa Joseph P. Tracy 1937-6-27 15384 Humboldt between Grouse Mt.and South Fork of Trinity River; Friday Ridge 1219 Comment
  RSA46478  Menziesia ferruginea Doris K. Kildale 1927-6-26 3596 Humboldt Redwoods between Big Lagoon and Trinidad. Comment
  HSC77389  Menziesia ferruginea subsp. ferruginea L. P. Janeway 1983-5-3 258 Humboldt Community Forest Main Access Rd., E of HSU 168 Comment
  POM296727  Micropus californicus S. K. Harris, J. P. Tracy 1942-6-15 s.n. Humboldt Prairie, Harris Road, 1 mile east of Garberville 30 Comment
  UC1199338  Micropus californicus var. californicus Joseph P. Tracy 1919-5-31 5150 Humboldt near Mouth of Willow Creek; Northern Coast Region, Valley of the Trinity River 152 Comment
  UC1223202  Microseris acuminata Joseph P. Tracy 1948-6-13 18058 Humboldt roadside 3 mi w Harris 762 Comment
  UC164793  Microseris bigelovii Joseph P. Tracy 1911-5-30 3203 Humboldt Bucksport Northern Coast Region, Humboldt Bay Region 0 Comment
  CAS-BOT-BC322683  Microseris laciniata K. L. Chambers 1969-5-25 2921 Humboldt On road to Harris about 1 mile east of the freeway overpass at Garberville Comment
  SEINET11810186  Microseris linearifolia J. P. Tracy 1947-1 17676 Humboldt near Briceland Comment
  UC582734  Microseris nutans Joseph P. Tracy 1930-7-16 8900 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC166829  Microseris nutans Joseph P. Tracy 1908-6 2821 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Buck Mountain 1219 Comment
  SEINET12279136  Microsteris gracilis J. P. Tracy 1950-1 18648 Humboldt Valley of South Yager Creek 762 Comment
  RSA167416  Microsteris gracilis subsp. gracilis Joseph P. Tracy 1950-5-7 18648 Humboldt Valley of South Yager Creek 762 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
  HSC37239  Mimulus aurantiacus var. aurantiacus Lon Hall 1975-6-19 390 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  POM228349  Mimulus aurantiacus var. aurantiacus C. C. Harris, S. K. Harris 1936-6-9 s.n. Humboldt Carlotta. 61 Comment
  JEPS10550  Mimulus breweri W. L. Jepson 1902-7-23 2108 Humboldt Trinity Summit 2133 Comment
  HSC12696  Mimulus dentatus Jana Kattenhorn 1970-10-28 153 Humboldt Mad River at the mouth of Lindsey Creek. North Bank Rd. off Hwy. 299 Comment
  UC1196794  Mimulus douglasii Joseph P. Tracy 1948-5-31 17997 Humboldt near Harris 609 Comment
  HSC60081  Mimulus guttatus M. A. Baker 1978-5-6 472 Humboldt Bald Hills Rd., between Klamath River and French Camp Rd. Comment
  HSC70515  Mimulus guttatus Gail Newton 1980-7-20 1619 Humboldt Near Bell Swamps 1426 Comment
  HSC73600  Mimulus guttatus M. A. Baker 1980-7-22 3113 Humboldt Near Grogan Hole. 1676 Comment
  HSC20731  Mimulus guttatus J. E. Lankila 1962-5-14 24 Humboldt W bank of river at Fernbridge Comment
  UC147915  Mimulus inodorus J. P. Tracy 1900-8-5 912 Humboldt immediate vicinity Eureka 0 Comment
  HSC104076  Mimulus layneae S. Carothers 2002-6-11 Humboldt Six Rivers National Forest; along Ruth Lake Rd., between Ruth and bridge crossing to Shannon Butte 841 Comment
  BLMAR687  Mimulus moschatus Jennifer Wheeler 2012-8-30 687 Humboldt Lacks Creek, Beaver Ridge Pond 914 Comment
  RSA447971  Mimulus moschatus Thomas W. Nelson, Jane P. Nelson 1977-7-4 3606 Humboldt Along road north from Alder Springs. 1524 Comment
  POM273194  Mimulus moschatus var. sessilifolius Lyman Benson 1929-7-19 1873 Humboldt Mouth of Matole River. Comment
  HSC100674  Mimulus nasutus Carl C. Marshall 434 Humboldt Mtns. of Humboldt, open ridges near water. Comment
  HSC78656  Minuartia nuttallii subsp. gregaria D. K. Imper 1982-6-29 1478 Humboldt Near Lassics Lookout 1584 Comment
  UC1198866  Mitella caulescens Joseph P. Tracy 1942-6-28 17268 Humboldt Murphy Meadows Bald Mountain (edges of bog) 975 Comment
  HSC102181  Mitella trifida M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1095 Humboldt Patterson Meadows 1566 Comment
  HSC37863  Modiola caroliniana Peter Sorensen 1976-6-16 Humboldt Humboldt Bay; Woodley Island Comment
  HSC36497  Moehringia macrophylla Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1894 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  HSC74371  Moehringia macrophylla M. A. Baker 1980-6-16 1950 Humboldt Near Onion Mtn. 1280 Comment
  SDSU7320  Monardella odoratissima Harvey 1939-7-16 2428 Humboldt us 101 Comment
  UC176998  Monardella odoratissima subsp. glauca Joseph P. Tracy 1912-7-31 3928 Humboldt Near summit Buck Mountain; Northern Coast Ranges 1676 Comment
  HSC73647  Monardella odoratissima subsp. pallida M. A. Baker 1980-7-23 3154 Humboldt Near Orleans Mtn. 1859 Comment
  HSC98012  Monardella sheltonii Cara Witte 2007-7-27 603 Humboldt Forest Service Road 4N32. 1.4 miles north of intersection with Forest Service Road 4N32B. 1413 Comment
  HSC98984  Monardella sheltonii Cara Witte 2007-7-27 604 Humboldt Forest Service Road 4N32. 1.4 miles north of intersection with Forest Service Road 4N32B. 1413 Comment
  HSC34741  Monardella villosa Thomas W. Nelson 1974-7-19 1674 Humboldt McKeown Ranch N of Dinsmore Comment
  RSA0022803  Monardella villosa subsp. subserrata L. R. Abrams 1922-6-25 8221 Humboldt Camp Cemi [?], north Garberville. Comment
  UC416723  Monardella villosa subsp. villosa P. E. Goddard 1901-7 3 Humboldt Hupa Valley Comment
  HSC26743  Moneses uniflora K. Irwin 1973-6-19 Humboldt S of road to Fern Canyon Comment
  UC21673  Monotropa hypopitys Harley P. Chandler Jun 1901 1536 Humboldt Klamath River 426 Comment
  UC1223248  Montia chamissoi Joseph P. Tracy 1950-6-25 18894 Humboldt 3 mi s of Burr Valley (on w side of Buck Mountain, near the Sproston place on the road to the Albee Pass); Buck Mountain 1158 Comment
  JEPS43192  Montia howellii Joseph P. Tracy 1916-5-7 4686 Humboldt Northern Coast Region, Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  UC275324  Montia howellii Joseph P. Tracy 1923-4-15 6187 Humboldt Redwood Creek, at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  CAS-BOT-BC445159  Montia parvifolia W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  CAS-BOT-BC445163  Montia parvifolia Harley P. Chandler 1901-5-1 1261 Humboldt North Coast Ranges. Redwood Belt 152 Comment
  UC83800  Montia parvifolia Harley P. Chandler May, 1901 1261 Humboldt North Coast Ranges, Redwood Belt Redwood Belt; North Coast Ranges, Redwood Belt 152 Comment
  CAS-BOT-BC445149  Montia parvifolia Volney Rattan No date on label s.n. Humboldt Unspecified Comment
  RSA183637  Montia parvifolia D. E. Anderson 1965-5-22 3726 Humboldt 9.4 miles S of Bridgeville, Comment
  HSC37958  Morella californica Peter Sorensen 1976-6-12 Humboldt Woodley Island, Humboldt Bay Comment
  UC503092  Morella californica Joseph P. Tracy 1931-5-1 9332 Humboldt Northern Coast Ranges, Downs Prairie Comment
  CAS-BOT-BC260573  Muhlenbergia filiformis Joseph P. Tracy 1932-7-14 10544 Humboldt Klamath Mountains. At Corral Prairie 1524 Comment
  HSC45080  Myosotis discolor R. Sutherland 1978-5-12 11 .12578 Humboldt 282 Comment
  HSC77885  Myriophyllum aquaticum Wendy Madar 1978-5-16 Humboldt Catfish Lake, 3 mi. S Eureka Comment
  HSC77871  Myriophyllum sibiricum Bob Aaserude 1975-10-18 Humboldt 10 mi. NE of Weitchpec, off Hwy. 96, Fish Lake Comment
  UC1196931  Myriophyllum sibiricum Joseph P. Tracy 1913-9-9 4407 Humboldt In pond in sand dunes near mouth of Little River. 3 Comment
  HSC91593  Narcissus tazetta E. Mackey 1986-7-21 Humboldt Patrick's Point State Park near Ceremonial Rock. Comment
  UCD87901  Nassella lepida A. H. Murphy 1951-5-18 s.n. Humboldt 2.5 mi. northwest of Petrolia on rocky road cut along county road. Petrolia to Ferndale. Comment
  HSC64121  Nasturtium officinale J. P. Smith 1973-5-26 6787 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UCSB30594  Nasturtium officinale Edwards, David 1974-7-30 Humboldt West side of U.S. 101, ca. 30 yds. S. of 7th St. overpass, Arcata 15 Comment
  SEINET200632  Navarretia atractyloides Joseph P. Tracy 1927-8-7 8307 Humboldt Willow Creek school house 152 Comment
  UC908394  Navarretia divaricata subsp. vividior Joseph P. Tracy 1934-7-9 13326 Humboldt n of Bell Springs; Northern Coast Ranges, Chamise Mt. 1066 Comment
  UC604654  Navarretia intertexta Joseph P. Tracy 1938-7-5 16012 Humboldt open flat by 5 mi e of town old Strong's District School House; Carlotta 45 Comment
  UC908144  Navarretia intertexta Joseph P. Tracy 1932-6-14 10162 Humboldt Willow Creek Trinity River Valley 152 Comment
  BLMAR163  Navarretia mellita Donald Hazlett 1994-6-7 163 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC1124141  Navarretia squarrosa H. L. Person 1932-7-23 Humboldt near Korbel; Eureka Quad. Comment
  UC198645  Navarretia tagetina Joseph P. Tracy 1916-6-19 4709 Humboldt Bosworths, on Laribee Creek Northern Coast Ranges, Laribee Creek 457 Comment
  JEPS70515  Navarretia viscidula Joseph P. Tracy 1927-7-24 8294 Humboldt Upper Mattole 152 Comment
  UC198635  Navarretia viscidula Joseph P. Tracy 1916-6-20 4732 Humboldt Alder Point Northern Coast Ranges 152 Comment
  HSC13589  Nemophila menziesii D. E. Anderson 1965-4-24 3532 Humboldt Along Titlow Hill Rd. Comment
  SD42585  Nemophila menziesii var. atomaria Carl B. Wolf 1937-6-19 8915 Humboldt North Coast Range, 3 mi. w. of Little Van Duzen River at summit of grade -- Dinsmores to Bridgeville. 762 Comment
  HSC73127  Nemophila parviflora M. A. Baker 1980-5-18 1284 Humboldt Near Black Mtn. 1006 Comment
  UC1239687  Nepeta cataria Joseph P. Tracy 1930-8-17 9155 Humboldt Eureka; Northern Coast Ranges 0 Comment
  JEPS12382  Nicotiana quadrivalvis Lincoln Constance 1934-6-18 896 Humboldt border North Dyerville Flat (near South Fork Railroad Station and P.O.); South Fork Eel River, Bull Creek Region Comment
  HSC47951  Noccaea fendleri subsp. glauca Brad Klipfel 1974-5-27 387 Humboldt Horse Mtn. Comment
  CAS-BOT-BC60566  Noccaea fendleri subsp. glauca Thomas Nelson 1977-6-15 3437 Humboldt North Coast Ranges. Along old road to ski area. 1371 Comment
  HSC68221  Notholithocarpus densiflorus var. densiflorus J. P. Smith, Steve Selva 1970-6-14 3852 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC8070  Notholithocarpus densiflorus var. densiflorus Doris K. Kildale 1926-8-22 2569 Humboldt Bald Hills; E end of Tomlinson's Prarie 716 Comment
  HSC41314  Notholithocarpus densiflorus var. echinoides Brad Klipfel 1974-9-2 541 Humboldt Horse Mountain Comment
  CAS-BOT-BC142252  Oemleria cerasiformis C. Hart Merriam 1918-1-1 s.n. Humboldt Blue Lake Comment
  HSC22513  Oemleria cerasiformis D. E. Anderson 1965-4-24 3536 Humboldt Along Titlow Hill Rd. 2 mi. from its junction with Hwy. 299 Comment
  HSC82314  Oemleria cerasiformis Thomas W. Nelson, Linda M. Barker 1977-6-3 3386 Humboldt Floodplain of Mad River at S end of Mad River Bridge. 53 Comment
Read comments
May 7 2013
  RSA183592  Oemleria cerasiformis D. E. Anderson 1965-4-24 3536 Humboldt Along Titlow Hill Road, about 2 miles from its junction with Highway 299. Comment
  RSA782436  Oemleria cerasiformis R. W. Spjut, Paul Burchstead 2008-6-14 16347 Humboldt North Coast Ranges. Old Hwy. along west side of Hwy. 101 between Loleta and Fortuna 25 Comment
  UC1128079  Oemleria cerasiformis P. L. Johannsen 1933-5-17 76 Humboldt Limestairs; Trinity National Forest, China Flat Quad. 182 Comment
  UC154281  Oemleria cerasiformis Mrs. Harriet Tracy 1909-3-5 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC18398  Oemleria cerasiformis Anonymous 1956-5-1 Humboldt Mattole area Comment
  UC314582  Oenanthe sarmentosa Joseph P. Tracy 1924-9-28 6910 Humboldt Centerville Northern Coast Ranges, Centerville 6 Comment
  UCD127738  Oenanthe sarmentosa Linda M. Barker 1976-8-24 1686 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC23225  Oenanthe sarmentosa Thomas O. Erickson 1971-10-28 1 Humboldt Luffenholtz Beach off Hwy. 101 N of Moonstone Comment
  CHSC70028  Oenothera wolfii David K. Imper 1988-8-15 Humboldt Hoopa Square, just n of junction Hwy 299 and Big Hill Rd., E side of 299, S of Sawdust Burner. Roadside. 152 Comment
  HSC82412  Oreostemma alpigenum var. andersonii Thomas W. Nelson 1979-7-11 5018 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC39391  Orobanche fasciculata D. E. Anderson, J. P. Smith 1971-7-6 - 1274 Humboldt Horse Mtn. Comment
  HSC62992  Orobanche uniflora David Wheeler 1979-5-24 153 Humboldt Gray's Falls above the Trinity River. Comment
  HSC100092  Orthilia secunda Jimerson, J. Pageau 1979-6-12 538 Humboldt Near Hopkins Butte, close to the town of Orleans 1036 Comment
  UC1197566  Orthilia secunda Joseph P. Tracy 1940-7-7 16663 Humboldt Grouse Mt. on Friday Ridge 1371 Comment
  UC1197574  Orthilia secunda Joseph P. Tracy 1932-7-16 10621 Humboldt Trinity Summit bear Corral Prairie 1584 Comment
  HSC104436  Orthilia secunda Bianca Hayashi 2013-6-18 Humboldt Northwest of Snow Camp Mountain Comment
  UC1222795  Orthocarpus imbricatus Joseph P. Tracy 1950-8-8 19285 Humboldt Croghan Hole Trinity Summit (Trinity Summit); , Croghan Hole 1676 Comment
  UC1222796  Orthocarpus imbricatus Joseph P. Tracy 1951-6-26 19562 Humboldt halfway between Snow Camp and Twin Lakes; halfway between Snow Camp and Twin Lakes Comment
  HSC56239  Osmorhiza berteroi Overton 1979-8-1 12330 Humboldt Near Mill Creek, close to the town of Hoopa 1341 Comment
  HSC96256  Osmorhiza berteroi Kaylea Eickhoff, Cara M. Witte 2005-6-10 7 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF1 1370 Comment
  RSA249513  Osmorhiza berteroi R. F. Thorne, P. Everett 1965-8-5 35129 Humboldt Wailaki Recreation site. 518 Comment
  JEPS14241  Osmorhiza occidentalis Joseph P. Tracy 1928-6-24 8462 Humboldt Valley of South Yager Creek 762 Comment
  UC642275  Osmorhiza occidentalis Joseph P. Tracy 1932-7-12 10471 Humboldt Brett Hole Trinity Summit (head) 1828 Comment
  HSC59400  Osmorhiza purpurea Rick Lundquist 1979-5-2 55 Humboldt SE corner 7th & Union Streets 24 Comment
  CHSC19520  Oxalis oregana R. D. Modafferi 1965-5-1 66 Humboldt 0.5 mile south of Trinidad on old highway 101. Roadside. Comment
  HSC16702  Oxalis oregana A. E. Inman 1962-5-25 Humboldt E bank of Mad River, W of Camp Bauer Comment
  HSC59195  Oxalis oregana Terry Roth 1979-5-20 59 Humboldt Along old logging road that follows Jolly Giant Creek. 79 Comment
  UC17222  Oxalis oregana Harley P. Chandler May, 1901 1160 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  JEPS108632  Oxalis oregana H. G. Baker Humboldt 1 mi S of Burlington Comment
  RSA254427  Oxalis oregana Larry L. Norris 1975-4-10 2310 Humboldt Samuel P. Taylor State Park Comment
  SD64137  Oxalis oregana W. Bertsch 1953-7-30 223 Humboldt Redwoods-Dyerville Highway 101. 60 Comment
  HSC23740  Parentucellia viscosa Tim Baroni 1971-10-14 195 Humboldt Trinidad, above Luffenholtz Beach on old Hwy. 101 Comment
  UCSB30624  Parentucellia viscosa Edwards, David 1974-8-14 Humboldt 3/4 mi. in on dirt road from jct. with Fickle Hill Rd. ca. 1/4 mi. E. of jct. of Park Ave. and Fickle Hill Rd.; where dirt road forks several ways. ca. 50 ft. S. of power line twr. Arcata 121 Comment
  POM126123  Paspalum distichum Joseph P. Tracy, H. E. Parks 1924-8-3 6779 Humboldt Big Lagoon 6 Comment
  HSC54592  Paxistima myrsinites Overton, Butler 1979-7-24 9660 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC1222163  Paxistima myrsinites Joseph P. Tracy 1950-6-15 18822 Humboldt 7 mi. n. Harris (at Huestis Rock, n.e. side of Mail Ridge); Mail Ridge Comment
  UC249586  Paxistima myrsinites Joseph P. Tracy 1921-6-19 5835 Humboldt mt. slopes along rd. between Three Creeks and mouth of Willow Creek; Northern Coast Ranges, Three Creeks 670 Comment
  UC249593  Paxistima myrsinites Joseph P. Tracy 1922-4-30 6042 Humboldt ridge n. of Willow Creek between Willow Creek and Campbell Creek (Brannan Mt.); Northern Coast Ranges, Brannan Mt. 914 Comment
  UC902125  Paxistima myrsinites Joseph P. Tracy 1942-6-23 17245 Humboldt 2 mi. e. Box Camp; Trinity Summit 1524 Comment
  UC582556  Pedicularis densiflora Joseph P. Tracy 1937-4-3 15251 Humboldt Willow Creek; Trinity River Valley 152 Comment
  CHSC3181  Pedicularis groenlandica Robert D. Briggs 1966-5-8 R- 187 Humboldt 1/4 mile south of Summit- 18 miles west of Willow Creek, on State 299. Comment
  JEPS19083  Pellaea brachyptera Joseph P. Tracy 1937-7-24 15516 Humboldt Devil's Hole Trinity Summit 1676 Comment
  HSC40011  Penstemon anguineus Thomas W. Nelson, Jane P. Nelson 1976-7-1 2907 Humboldt E side of Red Lassic, beside FS Rd. 1S07 1677 Comment
  HSC25398  Penstemon azureus J. O. Sawyer 1970-6-24 2213 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 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
  RSA167237  Penstemon heterophyllus subsp. purdyi Joseph P. Tracy 1950-6-15 18782 Humboldt At the Jenk's Ranch, where not over sheeped, 7 miles N of Harris. Comment
  HSC74399  Penstemon laetus subsp. sagittatus Gail Newton 1980-6-28 731 Humboldt Near Mad River Butte. 1536 Comment
  HSC97604  Penstemon laetus subsp. sagittatus Cara Witte 2007-5-29 141 Humboldt Along National Forest 1 near Kinsey Ridge. 1/2 mile south of cattle guard. 1369 Comment
  HSC56115  Penstemon newberryi subsp. berryi Gilbert Muth 1979-8-1 11886 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  UC577416  Penstemon newberryi var. berryi Joseph P. Tracy Jul 16-19 1930 8953 Humboldt South Fork Mountain, open glades along summit near Blake lookout Northern Coast Ranges 1737 Comment
  UC774991  Penstemon parvulus Carl B. Wolf 1937-8-13 9220 Humboldt on new road towards Trinity Summit 8 mi e Hoopa Valley; North Coast Range 1219 Comment
  UC1032475  Penstemon rattanii A. E. Wieslander 1931-5-21 213 Humboldt Kneeland China Flat Quad. Comment
  RSA0070754  Pentagramma triangularis Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  SEINET200760  Perideridia gairdneri Joseph P. Tracy 1948-9-5 18167 Humboldt Happy Camp Mountain. In Trinity Summit Range 6 miles NE of Hawkins Bar. 1280 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
  CAS-BOT-BC413506  Persicaria amphibia Henry M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region Comment
  CDA40548  Persicaria wallichii R. Robison 2014-5-5 s.n. Humboldt Adjacent to Trinidad State Beach on Stagecoach Road. 0 Comment
  RSA298347  Phacelia bolanderi J. P. Smith, Steve Selva 1970-6-14 3821 Humboldt Along California 96 at Whitmore Creek. 152 Comment
  UC24323  Phacelia ciliata var. ciliata J. P. Tracy 1899-4-4 Humboldt Eureka Comment
  JEPS1545  Phacelia corymbosa Joseph P. Tracy 1926-6-20 7624 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  UC562558  Phacelia corymbosa Joseph P. Tracy 1926-6-20 7624 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  HSC41588  Phacelia corymbosa Thomas W. Nelson, Jane P. Nelson 1977-7-4 3576 Humboldt Head of N Fork of Conley Creek 1463 Comment
  RSA167317  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1951-6-24 19539 Humboldt Rock exposure between serpentine rock pile and Ashfield Butte. Kneeland Prarie. 762 Comment
  HSC57855  Phacelia mutabilis G. L. Clifton 1979-7-31 11371 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC58179  Phacelia mutabilis G. L. Clifton 1979-8-2 12263 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC75450  Phacelia mutabilis J. O. Sawyer 1980-7-18 3587 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  JEPS55962  Phacelia mutabilis John Thomas Howell 1937-7-31 13715 Humboldt Boise Creek Comment
  UC906636  Phacelia mutabilis Joseph P. Tracy 1947-7-9 17832 Humboldt lower slopes Horse Mountain 1219 Comment
  UC526832  Phalaris aquatica Joseph P. Tracy 1927-9-18 8366 Humboldt Carlotta; Northern Coast Ranges, Carlotta 60 Comment
  UCD88519  Phalaris arundinacea J. W. Logan 1926-6-2 2 Humboldt Ferndale. Rusk Ranch. Comment
  UC207582  Phalaris paradoxa Joseph P. Tracy 1916-5-31 4700 Humboldt along Eel River from South Fork to Scotia Holmes Flat; Northern Coast Ranges, along Eel River 60 Comment
  CAS-BOT-BC76561  Philadelphus lewisii L. R. Abrams 1918-6-16 7200 Humboldt Willow Creek Comment
  SBBG2732  Philadelphus lewisii H. and M. Dearing 1939-6-23 3693 Humboldt 30 mi E of Arcata Comment
  HSC58693  Phleum alpinum Overton, Butler 1979-8-2 12694 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC181260  Phleum alpinum Joseph P. Tracy 1913-7-20 4376 1/2 Humboldt ridge between Redwood Creek and Three Creeks (on Berry's ranch); Northern Coast Ranges, btw Redwood Creek and Three Creeks 914 Comment
  HSC58537  Phleum pratense Overton, Butler 1979-7-23 9461 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  RSA10146  Phleum pratense Joseph P. Tracy 1933-7-21 12822 Humboldt Valley of South Yager Creek 762 Comment
  RSA122919  Phlox adsurgens H. S. Yates 1936-6-22 5849 Humboldt 4 miles northeast of Bald Mountain Comment
  UC162583  Phlox adsurgens Joseph P. Tracy 1911-7-7 3418 Humboldt viz ridge n of Willow Creek (between Willow Creek and Campbell Creek, near the summit); Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC1198566  Phlox gracilis Joseph P. Tracy 1938-6-13 15910 Humboldt Cold Springs Grouse Mountain 1432 Comment
  HSC41478  Phyla nodiflora Ed Cope, R. Runyon 1977-7-20 132 Humboldt 15th and H St., Arcata. Comment
  UC535001  Phyllospadix torreyi H. E. Parks 1933-11-12 Humboldt Spruce Cove Trinidad Comment
  RSA46805  Physocarpus capitatus Doris K. Kildale 1927-5-15 3158 Humboldt Petrolia Comment
  UC160987  Physocarpus capitatus Joseph P. Tracy 1911-5-29 3270 Humboldt near Hydesville 60 Comment
  LA206239  Picea sitchensis Carl Epling; William Robison 1935-7-22 sn Humboldt near Patrick's Point Comment
  CAS-BOT-BC73290  Pinus contorta Ira L. Wiggins 1930-6-25 4620 Humboldt Sand dunes 2 miles north of Samoa. Comment
  HSC12720  Pinus contorta C. E. Fellows 1970-10-7 374 Humboldt McKinleyville 0.25 mi. W of end of Murray Rd. near dunes Comment
  CAS-BOT-BC73200  Pinus jeffreyi Doris K. Kildale 1927-7-22 3832 Humboldt Lassen's Peaks. Signal Peak. 1791 Comment
  HSC55094  Pinus monticola G. L. Clifton, Griswold 1979-7-31 11797 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 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
  UC1196914  Pinus muricata unknown 1935-7-1 Humboldt Moonstone Beach settlement Moonstone Beach (0.5 mi or so back from ocean) 60 Comment
  UC1204918  Pinus muricata unknown July, 1935 Humboldt 1/2 mi or so back from ocean; Moonstone Beach settlement 60 Comment
  HSC104336  Piperia candida James Regan, Humboldt Redwood Co., LLC 2016-7-1 29 Humboldt Bear River, at Nelson and Harmonica Creeks. 40.38939 N, -124.084639 W; 427 Comment
  HSC104337  Piperia candida James Regan, Humboldt Redwood Co., LLC Jun 2015 30 Humboldt Nelson Creek 457 Comment
  UC1196428  Piperia transversa Joseph P. Tracy 1937-7-11 15419 Humboldt Garberville 152 Comment
  JEPS79898  Piperia unalascensis Joseph P. Tracy 1932-7-12 10453 Humboldt near Corral Prairie (Trinity Summit); Trinity Summit 1584 Comment
  BLMAR587  Piperia unalascensis Jennifer Wheeler 2010-7-13 587 Humboldt King range, along Panther Gap Road 792 Comment
  SEINET10296823  Piperia unalascensis Unknown 1932-7-12 10453 Humboldt Trinity Summit Fir woods near Corral Prairie Altitude 5200 feet Comment
  CAS-BOT-BC458134  Pityopus californicus Doris K. Kildale 1926-6-6 2110 Humboldt Trail to Gold Bluffs Comment
  UC1347181  Plagiobothrys bracteatus Alice Eastwood and John Thomas Howell 1937-6-23 4811 Humboldt Little Van Duzen River Comment
  POM126363  Plagiobothrys reticulatus Joseph P. Tracy 1912-6-9 s.n. Humboldt Alton. 30 Comment
  JEPS60968  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1935-6-8 13949 Humboldt in front of South End of Stone Lagoon; Dry Lagoon 3 Comment
  JEPS60970  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1938-7-5 16013 Humboldt flat by old Strong's District School House (5 mi e of town); Carlotta 45 Comment
  SEINET8665540  Plantago australis subsp. hirtella J. P. Tracy 1906-6-17 2493 Humboldt Immediate vicinity of Eureka Comment
  UCD124391  Plantago coronopus Stuart K. Harris 1930-10-14 6982 Humboldt near Palmer Creek, 1 mile west of Fortuna. 15 Comment
  HSC73154  Plantago lanceolata M. A. Baker 1980-5-18 1301 Humboldt Near Black Mtn. 1006 Comment
  BLMAR262  Plantago lanceolata Jennifer Anthony-Wheeler 1998-7-14 262 Humboldt King range, strawberry rock grazing allotment 280 Comment
  UC1192024  Plantago maritima var. juncoides Malcolm A. Nobs and S. Galen Smith 1949-8-3 1205 Humboldt about 2 mi n Eureka; Humboldt Bay Comment
  HSC27463  Platanthera dilatata var. leucostachys J. D. Ackerman, A. Montalvo 1973-6-30 90 Humboldt Big Lagoon State Park, 8 mi. N of Trinidad 0 Comment
  RSA12545  Platanthera leucostachys Carl B. Wolf 1934-7-2 5893 Humboldt At small lake at Snow Camp (Mtns E of Korbel) 1372 Comment
  UC1037486  Platanthera leucostachys Milo S. Baker 1927-8-21 2480 b Humboldt near Bald Mt. 914 Comment
  HSC54529  Platanthera sparsiflora Overton, Butler 1979-7-23 9471 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 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
  BLMAR62  Platystemon californicus Jennifer Anthony-Wheeler 1994-4-6 62 Humboldt Samoa/manilla dunes, growing scattered throughout the dune mat 12 Comment
  HSC16792  Platystemon californicus J. W. Johnson 1962-8-18 1245 Humboldt Arcata, Mad River County Park Comment
  UC602530  Plectritis brachystemon Joseph P. Tracy 1936-5-29 14823 1/2 Humboldt French Camp Ridge 1066 Comment
  HSC63230  Plectritis congesta subsp. brachystemon M. A. Baker 1979-5-6 473 Humboldt Weitchpec. Comment
  SEINET6652845 Image available Pleuricospora fimbriolata Joseph P. Tracy 1925-1 7184 A Humboldt Northern Coast Ranges: High Prairie on Bald Mountain 1067 Comment
  HSC10613  Pleuropogon refractus R. D. Modaferri 1965-5-13 98 Humboldt 2.2 mi N of Trinidad on Trinity St. 274 Comment
  UC249503  Pleuropogon refractus Joseph P. Tracy 1922-6-18 6095 Humboldt head of Middle Yager Creek; Northern Coast Ranges, Middle Yager Creek 762 Comment
  UCD90105  Pleuropogon refractus R. Tofsrud 1949-7-22 s.n. Humboldt on road between Scotia and Capetown. Comment
  CAS-BOT-BC254714  Poa bolanderi Joseph P. Tracy 1930-7-16 8902 Humboldt South Fork Mountain: near McKay Camp 1676 Comment
  UC525626  Poa bolanderi Joseph P. Tracy 1932-7-12 10464 Humboldt head of Brett Hole Trinity Summit; Klamath Mts 1828 Comment
  RSA176927  Poa confinis P. H. Raven 1963-5-15 18372 Humboldt Lanphere Ranch just west of Mad River Slough; near Arcata Comment
  SEINET11683183  Poa douglasii K. S. Erdman 1970-1 4801 Humboldt mouth of Ossagon Creek on Gold Beach Rd 2 mi W of US 101 (Redwood N.P.) Comment
  CAS-BOT-BC255850  Poa kelloggii Harley P. Chandler 1901-5-1 1183 Humboldt Humboldt Bay 30 Comment
  HSC61767  Polygala californica Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan 229 Comment
  UC17437  Polygala californica Harley P. Chandler June 1901 1328 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC1198993  Polygala californica Joseph P. Tracy 1913-7-20 4377 Humboldt on Redwood Creek near Berry's; Northern Coast Ranges, Redwood Creek 304 Comment
  UC275346  Polygala californica Joseph P. Tracy 1923-6-20 6333 Humboldt Briceland Northern Coast Ranges, Briceland 304 Comment
  UC672975  Polygonum aviculare subsp. depressum Joseph P. Tracy 1940-10-15 16754 Humboldt Willow Creek Canyon, along Trinity Highway 792 Comment
  UC1713695  Polygonum davisiae Joseph P. Tracy 1919-9-22 5261 Humboldt Trinity Summit Northern Coast Ranges 1889 Comment
  UC672967  Polygonum davisiae Joseph P. Tracy 1935-7-30 14383 Humboldt Salmon Summit 2103 Comment
  CHSC68789  Polygonum paronychia Vernon Oswald 1997-6-5 8541 Humboldt North Spit of Humboldt Bay 3.7 mi south of Hwy.255, Orvil Wilson Memorial Off-road Vehicle Park opposite the junction of New Navy Base Rd. and Lincoln Ave. 6 Comment
  HSC17520  Polygonum paronychia R. T. Forester 1963-3-21 31 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  SBBG1702  Polygonum paronychia H. and M. Dearing 1939-5-24 3427 Humboldt Cape Mendocino Beach Comment
  UC672981  Polygonum phytolaccifolium Joseph P. Tracy Jul 16 1930-Jul 19 1930 9056 Humboldt along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  UC672951  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1930-7-17 9010 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC1222469  Polygonum sawatchense subsp. oblivium Joseph P. Tracy 1935-7-14 14082 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC421009  Polygonum spergulariiforme Doris Kildale 1931-6-6 10872 Humboldt Gans Prairie, Orick - Weitchpec road Comment
  RSA689951  Polypodium californicum Charlotte M. Hoak 1936-8-15 104 Humboldt Patricks Point Comment
  HSC1139  Polypodium californicum J. W. Johnson 1962-4-10 1233 Humboldt Arcata, Christenson Farm, Samoa Peninsula. Comment
  HSC39942  Polypodium glycyrrhiza Linda M. Barker 1976-3-11 1328 Humboldt 3 mi. W of Arcata Comment
  UC71485  Polypodium glycyrrhiza Mrs. M. H. Manning 1901-1 Humboldt Hupa Valley Comment
  UC667949  Polypodium glycyrrhiza Joseph P. Tracy 1936-3-8 14775 Humboldt along S Fork Eel River Miranda 121 Comment
  SEINET200797 Image available Polypodium scouleri Frank C. Gregory 1923-8-4 Humboldt Eureka 61 Comment
  HSC1113  Polypodium scouleri D. E. Anderson 1961-8-11 1723 Humboldt E of HSC campus Comment
  HSC79510  Polypogon interruptus Kenneth Clark 1980-6-14 694 Humboldt Shelter Cove, N Fork of Dead Man's Gulch. 122 Comment
  UC526770  Polypogon interruptus Joseph P. Tracy 1927-7-16 8261 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  UCD91351  Polypogon monspeliensis Kathleen Moore 1964-7-14 12 Humboldt Kneeland at the Star Barn. 762 Comment
  CAS-BOT-BC237457  Polypogon viridis Joseph P. Tracy 1926-7-4 7697 Humboldt Trinity River Valley, near the South Fork Comment
  HSC73537  Polystichum imbricans Gail Newton 1980-7-14 1498 Humboldt Near Last Chance Ridge. 1219 Comment
  RSA247492  Polystichum munitum Gary D. Wallace 1966-9-12 703 Humboldt Along Hwy. 299 E of Arcata near Willow Creek; Comment
  RSA693321  Polystichum munitum M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale, 8 mi north of Garberville Comment
  HSC91600  Polystichum munitum E. Mackey 1986-10-2 Humboldt Patrick's Point State Park by trail to Agate Beach Comment
  UC922660  Polystichum munitum Annie M. Alexander and Louise Kellogg 1948-9-3 5574 Humboldt above Trinity River Rd Hoopa Reservation Comment
  UC297845  Potamogeton foliosus H. E. Parks 1923-5-30 1758 Humboldt Eureka Comment
  SBBG88770  Potamogeton natans A. Keedy 1988-9-20 12 Humboldt off Alder Grove Rd, N of Arcata, near Hwy 299, Arcata Salt Marsh Project Comment
  HSC62826  Potamogeton nodosus J. M. DiTomaso 1979-4-22 907 Humboldt Crannell Rd. exit between Westhaven and McKinleyville Comment
  JEPS42952  Potamogeton pectinatus Joseph P. Tracy 1916-6-19 4718 Humboldt Dobbyn Creek; Northern Coast Ranges 182 Comment
  UC1099897  Potamogeton pusillus var. pusillus Malcolm A. Nobs, S. Galen Smith 1949-8-3 1162 Humboldt 1 mi s of Fields Landing; Eel River Valley Comment
  CAS-BOT-BC143080  Potentilla anserina subsp. pacifica Doris K. Kildale 1926-6-25 2178 Humboldt Big Lagoon Comment
  CAS-BOT-BC143073  Potentilla anserina subsp. pacifica Henry M. Pollard 1947-8-26 s.n. Humboldt Klamath Riverbed, Ferrian's Ranch (nr. Orleans) Comment
  SD42346  Potentilla anserina subsp. pacifica Carl B. Wolf 1937-9-12 9326 Humboldt Dry Lagoon State Park Comment
  HSC61166  Prosartes hookeri T. Jimerson, J. Pageau 1979-7-31 701 Humboldt Near Whiting Ridge. Close to the town of Hyampom, CA. 1204 Comment
  UCD139801  Prosartes hookeri Victor Duran 1933-5-12 3413 Humboldt Dyerville, South Fork of Eel River. Comment
  HSC15468  Prosartes smithii W. Jan Rowe 1966-5-11 42 Humboldt 100 ft. E of HSC campus, Arcata 46 Comment
  HSC15471  Prosartes smithii D. E. Anderson 1962-3-24 1946 Humboldt Along Turner Rd. Comment
  SEINET12044820  Prosartes smithii Unknown 1933-1 3413 Humboldt Dyerville, South Fork of Eel River Comment
  SEINET13947063 Image available Prunella vulgaris W. J. Ferlatte, B. D. Rogers 1966-1 2093 Humboldt Near Bridgeville; T30N, R3E, SEC11 Comment
  UCLA49217  Prunella vulgaris H. Lewis 1940-7-3 Humboldt Founders Tree Humboldt State Park; , Founders Tree Comment
  HSC99544  Prunella vulgaris var. lanceolata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 209 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA424589A  Prunella vulgaris var. lanceolata Bonnie C. Templeton 1931-10-15 s.n. Humboldt Eureka Comment
  POM283342  Prunella vulgaris var. lanceolata Lyman Benson 1928-7-10 443 Humboldt Rolling hills by Humboldt Bay, 4 mi. S Eureka 61 Comment
  SD93030  Prunella vulgaris var. lanceolata W. Bertsch 1953-7-30 226 Humboldt Highway 101 near Dyerville. 60 Comment
  UC1402063  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-18 620 -30 Humboldt Comment
  UC1321005  Prunella vulgaris var. vulgaris Andrew P. Nelson 1960-1 629 -2 Humboldt Comment
  CAS-BOT-BC158599  Prunus C. Hart Merriam 1921-7-7 s.n. Humboldt Top of South Fork River ridge Comment
  CAS-BOT-BC159979  Prunus emarginata H. E. McMinn 1922-8-5 354 Humboldt Along Van [Dusen] Duzen River Comment
  HSC48746  Prunus emarginata Brad Klipfel 1973-6-10 83 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC48761  Prunus emarginata Brad Klipfel 1973-6-10 97 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1198772  Prunus emarginata Joseph P. Tracy 1933-7-11 12685 Humboldt near Clear Lake (Grouse Mountain); Grouse Mountain 1524 Comment
  UC666842  Prunus virginiana var. demissa Joseph P. Tracy 1933-7-16 12796 Humboldt South Fork Mountain, W slope near top, at Hyampom Trail 1676 Comment
  UC169340  Pseudognaphalium californicum Joseph P. Tracy 1912-7-21 3769 Humboldt Alton Northern Coast Region of California, Alton 30 Comment
  JEPS34048  Pseudognaphalium californicum Lincoln Constance 1934-6-14 875 Humboldt near Lookout Pt. (w side of Look Prairie); South Fork Eel River, Bull Creek Region, Look Prairie Comment
  CAS-BOT-BC357269  Pseudognaphalium microcephalum Joseph P. Tracy 1938-8-14 16111 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC80109  Pseudotsuga menziesii Doris K. Kildale 1927-4-17 3092 Humboldt Briceland Bridge 1/2 mi. west of Garberville 114 Comment
  HSC30338  Pseudotsuga menziesii var. menziesii Dale R. Gradek 1974-5-2 34 Humboldt 0.25 mi N of intersection of Dows Prairie Rd. and Grange Rd. Comment
  HSC74279  Pseudotsuga menziesii var. menziesii M. A. Baker 1980-5-23 1398 Humboldt Near Buck Mtn. 1524 Comment
  POM232028  Pteridium aquilinum var. pubescens I. L. Wiggins 1930-7-11 4684 Humboldt Near Samoa Comment
  RSA178581  Pterospora andromedea Joseph P. Tracy 1950-8-8 19274 Humboldt 3 miles east of Box Camp. Comment
  UC32692  Pyrola asarifolia Joseph P. Tracy 1898-7-1 248 Humboldt Kneeland Prairie 1066 Comment
  UC562457  Pyrola asarifolia Joseph P. Tracy 1936-6-28 15016 Humboldt Bald Mountain at Lake Prairie 1066 Comment
  UC1222157  Pyrola asarifolia Joseph P. Tracy 1951-6-24 19534 Humboldt near intersection of Butter Valley Road with Kneeland Road Comment
  HSC44342  Pyrola dentata Brad Klipfel 1975-6-17 687 Humboldt Horse Mtn. Comment
  HSC55231  Pyrola picta G. L. Clifton, Griswold 1979-8-2 12432 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1225899  Pyrola picta Joseph P. Tracy 1947-7-9 17854 Humboldt Horse Mountain 1432 Comment
  UCD117815  Pyrola picta D. C. Hagar 1957-6-17 L 8 Humboldt Happy Camp Mountain, 5 miles northeast of Salyer. 1280 Comment
  HSC18695  Pyrus fusca H. E. Parks Apr 1933 4352 Humboldt Spruce Cove, Trinidad Comment
  CAS-BOT-BC62673  Quercus chrysolepis Doris K. Kildale 1926-3-21 1689 Humboldt McDowell Butte, Kneeland Prairie 914 Comment
  HSC99029  Quercus chrysolepis Cara Witte 2008-7-14 891 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. At end of the road. 1407 Comment
  HSC97282  Quercus garryana M. Mesler 2007-6-25 766 Humboldt Trail to Mill Creek Lakes 1585 Comment
  UC1193252  Quercus garryana P. Zinke 1950-8-3 144 Humboldt 914 Comment
  UC1196523  Quercus garryana Joseph P. Tracy 1920-10-9 5402 Humboldt Bald Mountain, at Hungry Hill Northern Coast Ranges 762 Comment
  HSC102516  Quercus garryana var. breweri M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1502 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  UCD46112  Quercus garryana var. garryana Joseph P. Tracy 1924-10-12 6915 1/2 Humboldt Trinity River Valley, near the South Fork. 182 Comment
  UCD47218  Quercus sadleriana D. Sanchez-Mata 1997-9-20 s.n. Humboldt Hoopa. Big Hill Lookout Road. Successional shrubland plant communitites on logged Douglas fir forests. 1230 Comment
  HSC55168  Quercus vacciniifolia Gilbert Muth 1979-8-1 12162 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  SEINET3136624  Quercus vacciniifolia R. W. Spellenberg 1990-7-10 10245 Humboldt Extreme E edge of co., 8 mi WSW of Salyer at 6 mi S of Berry Summit (on Calif. Hwy 299) on USFS 1, S4 T5N R4E 1372 Comment
  CAS-BOT-BC186671  Ranunculus Mrs. H. C. Cantelow 1936-5-18 1388 Humboldt 8 mi. N. of Orick nr. Corkscrew Tree Comment
  HSC34119  Ranunculus alismifolius var. hartwegii J. O. Sawyer 1971-6-16 2386 Humboldt Headwaters of Tish Tang a Tang Creek 1829 Comment
  JEPS55086  Ranunculus californicus Joseph P. Tracy 1916-4-30 4681 Humboldt Table Bluff Northern Coast Ranges, about Humboldt Bay 152 Comment
  SEINET13716687  Ranunculus californicus Unknown 1916-4-30 4681 Humboldt Around Humboldt Bay Comment
  HSC26468  Ranunculus californicus var. cuneatus T. O. Osborne 1970-4-8 7 Humboldt Sugarloaf Rock, Cape Mendocino 76 Comment
  RSA273369  Ranunculus flammula J. O. Sawyer 1977-4-25 3043 Humboldt Along N side of Buttermilk lane Sunnybrae. Across the street from 1425 Buttermilk Lane Comment
  HSC18212  Ranunculus flammula var. ovalis R. D. Modafferi 1965-5-13 71 Humboldt 2.3 mi. N of Trinidad on Trinity St. 305 Comment
  HSC70330  Ranunculus occidentalis M. A. Baker 1980-6-8 1885 Humboldt Near Buck Flat. 1554 Comment
  JEPS55087  Ranunculus occidentalis Joseph P. Tracy 1918-5-28 4948 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UC1222571  Ranunculus occidentalis Joseph P. Tracy 1951-5-6 19396 Humboldt flat by old Strong's District School House (5 mi e of Carlotta) 60 Comment
  HSC39607  Ranunculus orthorhynchus var. platyphyllus Thomas W. Nelson, James Nelson 1976-7-28 3081 Humboldt W of Alder Springs. 1524 Comment
  HSC98748  Ranunculus orthorhynchus var. platyphyllus Cara Witte 2007-7-20 560 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  HSC26651  Ranunculus orthorhynchus var. platyphyllus Thomas W. Nelson 1971-5-29 449 Humboldt Beside Snow Camp Rd. Comment
  UC1196267  Ranunculus parviflorus Joseph P. Tracy 1928-5-13 8434 Humboldt near Centerville; Northern Coast Ranges, Fleener's Gulch 60 Comment
  CDA3496  Ranunculus parviflorus J. F. Hart 1964-5-21 Humboldt Garberville district. 0 Comment
  UC1196265  Ranunculus repens Joseph P. Tracy 1933-7-20 12803 Humboldt Arcata Bottom North Coast Ranges 15 Comment
  UC838004  Ranunculus repens Eliz. Parsons Hawver Jun 1915 Humboldt Carlotta Comment
  UC1196274  Ranunculus uncinatus Joseph P. Tracy 1922-6-5 6085 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  HSC64069  Raphanus sativus J. P. Smith 1971-10-6 4978 Humboldt End of Murray Rd. in McKinleyville. Comment
  UC1197993  Rhamnus californica Joseph P. Tracy 1937-7-11 15418 Humboldt Garberville 152 Comment
  JEPS42009  Rhamnus californica subsp. californica W. L. Jepson 1903-6-19 2206 Humboldt Briceland, s Humboldt County Briceland Comment
  RSA6202  Rhamnus purshiana Doris Kildale Gillespie 1932-9-1 4205 Humboldt City of Eureka, 1 block N of Henderson St on S St cut over Redwoods. 30 Comment
  CAS-BOT-BC56616  Rhododendron macrophyllum Mrs. A. H. Rodda 1932-5-20 s.n. Humboldt Redwood Highway Comment
  UC1733675  Rhododendron occidentale Frank Gould, Kay H. Beach 1940-5-5 1041 Humboldt along north coast, north of Eureka. Comment
  UC175739  Rhododendron occidentale Joseph P. Tracy 1912-4-21 3573 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC200386  Rhododendron occidentale var. paludosum Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  CDA21469  Rhododendron occidentale var. paludosum G. F. Hrusa, T. D. Wilfred 1992-5-5 9374 Humboldt North Coast Ranges; Mckinleyville Azalea Reserve. 30 Comment
  HSC76366  Rhododendron occidentale var. paludosum Teresa Prendusi 1981-7-23 346 Humboldt Near Black Mtn. 890 Comment
  HSC7884  Rhododendron occidentale var. paludosum N. D. Dennis 1965-4-29 30 Humboldt Old Arcata Rd., 6 mi. S of Arcata Comment
  CAS-BOT-BC433138  Ribes Doris Kildale 1931-5-10 10579 Humboldt Snow Camp Comment
  CAS-BOT-BC433140  Ribes W. R. Dudley 1899-6-21 s.n. Humboldt Near Pepperwood Comment
  CAS-BOT-BC433136  Ribes Doris K. Kildale; L. B. Kildale 1930-5-5 9555 Humboldt Bug Creek, Chaparral Mt. Comment
  HSC103188  Ribes binominatum Jade Paget-Seekins 2010-7-6 41 Humboldt On the western shore of Red Cap Lake, mostly to the right of the rocky slope. (Accessible via a few hour hike from the High Point trailhead outside of Forks of Salmon.) 1754 Comment
  UC492203  Ribes binominatum Joseph P. Tracy 1932-7-13 10487 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  CAS-BOT-BC92880  Ribes bracteosum W. R. Dudley 1899-6-21 s.n. Humboldt Engelwood Brook-Eel River. Comment
  UC1198905  Ribes bracteosum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9098 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  JEPS49366  Ribes lacustre P. E. Goddard 1901-7 125 Humboldt Trinity Summit Trail Comment
  CAS-BOT-BC176803  Ribes laxiflorum H. E. Parks; S. T. Parks 1937-6-4 24004 Humboldt Along Prairie Creek at Valley Green Comment
  HSC101752  Ribes laxiflorum J. P. Smith, J. O. Sawyer 2012-2-27 13437 Humboldt Patrick's Point State Park 41 Comment
  UC1198907  Ribes laxiflorum J. P. Tracy 1901-6-10 1122 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC173362  Ribes lobbii Doris K. Kildale 1926-9-5 2643 Humboldt Summit of Signal Peak, Lasseck's Peaks 1791 Comment
  HSC70746  Ribes lobbii R. York 1980-5-17 537 Humboldt Near Le Perron Peak 1066 Comment
  UC205483  Ribes lobbii Joseph P. Tracy 1919-9-18 5247 Humboldt Trinity Summit Northern Coast Ranges 1524 Comment
  UC1198936  Ribes marshallii Joseph P. Tracy 1942-6-23 17261 Humboldt open ridges near Water-dog Lakes; Trinity Summit 1828 Comment
  RSA0021769  Ribes menziesii Patricia Wilder 1968-8-22 4425 Humboldt Coastal rain forest 7 miles south of Ferndale on Mattole Road; N of Cape Mendocino and Capetown. Bear River Ridge, Oil Creek to Pacific drainage area. 549 Comment
  RSA0021774  Ribes menziesii L. R. Abrams, R. C. Bacigalupi 1922-6-25 8289 Humboldt Bluffs north of Big Lagoon near Orick. Comment
  HSC70757  Ribes roezlii R. York 1980-5-17 526 Humboldt Near Le Perron Peak 792 Comment
  UC1193214  Ribes roezlii P. Zinke 1950-8-4 153 Humboldt 2 mi w Harris Post Office (outside national forest); Quad. 29D3 853 Comment
  RSA0024586  Ribes roezlii var. cruentum Robert F. Thorne, P. C. Everett 1965-8-5 35142 Humboldt 5.2 miles N of junction of Horse Mt. and Shelter Cove Roads. 457 Comment
  CDA25579  Ribes sanguineum T. C. Fuller 1961-3-21 5855 Humboldt Bank of Mad River, 1 mile south of Korbel. 0 Comment
  HSC28504  Ribes sanguineum J. D. Ackerman 1973-3-27 40 Humboldt 1.5 mi. N of Manila Comment
  CAS-BOT-BC144687  Ribes sanguineum var. glutinosum Ira L. Wiggins 1930-7-22 4693 Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  HSC20344  Ribes sanguineum var. glutinosum Francis Winter 1960-2-28 Humboldt Samoa Peninsula 6 mi. W of Arcata, Ca Comment
  HSC36281  Ribes sanguineum var. glutinosum Barbara Kelly 1976-3-9 248 Humboldt Above Mad River at edge Comment
  HSC37844  Ribes sanguineum var. glutinosum Thomas W. Nelson, James Nelson 1976-3-11 2266 Humboldt Beside Eel River just N of terminus of Singley Rd. Comment
  UCSB15627  Ribes sanguineum var. glutinosum Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa; on peninsula; on western side of Humboldt Bay Comment
  RSA0018241  Ribes sanguineum var. glutinosum Lincoln Constance, R. C. Rollins 1942-5-11 2866 Humboldt Near summit 8 miles east of Blue Lake. Comment
  CDA25591  Ribes viscosissimum Gordon Leppig 1998-6-1 865 Humboldt Horse Mountain. Buck Flat, Titlow Hill Road at Ammon Ridge Road. Comment
  HSC48397  Ribes viscosissimum Brad Klipfel 1973-6-10 104 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  SEINET11803871  Rigiopappus leptocladus J. P. Tracy 1950-1 18996 Humboldt 2 mi S of Burr Valley on Albee Road 1158 Comment
  HSC69840  Romanzoffia californica R. Kalal 1979-5-6 52 Humboldt Trinidad Head 30 Comment
  UC906678  Romanzoffia californica Joseph P. Tracy 1943-5-9 17423 Humboldt along Trinity Hwy. Willow Creek Canyon (rock bluffs near Ruby Creek) 609 Comment
  RSA95496  Romanzoffia californica L. S. Rose 1954-4-24 54015 Humboldt Trinidad Head. Comment
  HSC26346  Romanzoffia tracyi T. O. Osborne 1970-4-5 80 Humboldt Flat-iron rock, 3/4 mi. NW of Trinidad Lighthouse. Comment
  HSC87236  Romulea rosea var. australis Thomas W. Nelson, Jane P. Nelson 1987-4-11 8421 Humboldt Beside county road that follows Bear River, 100 ft. from junction with Hwy. 1 at Capetown 8 Comment
  UC1199218  Rorippa curvisiliqua Joseph P. Tracy 1937-7-17 15437 Humboldt Eureka 45 Comment
  CAS-BOT-BC74510  Rorippa curvisiliqua Henry M. Pollard 1946-8-10 s.n. Humboldt Klamath River, near Wilson Creek, Orleans region. Comment
  HSC19615  Rosa californica Lincoln Constance 1934-5-26 654 Humboldt South Fork Eel River, S end of Dyerville Bridge. Comment
  POM275377  Rosa eglanteria Lyman D. Benson 1929-7-16 1846 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  CAS-BOT-BC146480  Rosa gymnocarpa Henry M. Pollard 1956-10-11 s.n. Humboldt Near Orleans on trail to Wilder Creek Comment
  CHSC33401  Rosa gymnocarpa J. O. Sawyer; R. J. Cole 1977-7-3 3018 Humboldt Along Big Hill Road (8N01) at Mud Spring. Comment
  HSC19627  Rosa gymnocarpa R. E. Thill 1965-5-1 23 Humboldt 0.25 mi. from Korbel on the Camp Bauer Rd. Comment
  HSC49926  Rosa gymnocarpa Maralyn O'Meara 1974-7-11 540 Humboldt Kneeland; Barry Ridge Comment
  HSC72825  Rosa gymnocarpa M. A. Baker 1980-6-26 2437 Humboldt Near Sims Creek 393 Comment
  HSC76239  Rosa gymnocarpa Teresa Prendusi 1981-7-9 187 Humboldt Near Cedar Camp. 1268 Comment
  JEPS45670  Rosa gymnocarpa Joseph P. Tracy 1923-5-31 6241 Humboldt Eureka Northern Coast Ranges 0 Comment
  RSA201872  Rosa nutkana Geo. Parrish, G. Parrish 1930-5-21 s.n. Humboldt Trinidad. Comment
  UC154204  Rosa nutkana var. nutkana J. P. Tracy 1901-6-23 1162 Humboldt immediate vicinity of Eureka 0 Comment
  SEINET11912081  Rosa pinetorum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -312 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Road 150 Comment
  CAS-BOT-BC148342  Rosa pisocarpa Joseph P. Tracy 1947-7-5 17813 Humboldt Trinity Summit, near Box Camp in open fir timber. 1524 Comment
  HSC24018  Rosa rubiginosa Tim Baroni 1971-6-25 48 Humboldt [no information] Comment
  HSC35815  Rosa rubiginosa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1921 Humboldt Above Goat Rock, 2 mi. W of Bridgeville Comment
  CAS-BOT-BC148220  Rosa spithamea L. R. Abrams 1918-6-15 7102 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  UCD89725  Rubus fruticosus Lindsay Clark 2008-6-23 KRC 1 Humboldt Nadelos Campground in King Range Conservation Area, 3.8 miles SE of Shelter Cove. 551 Comment
  UC709448  Rubus lasiococcus Joseph P. Tracy 1941-8-24 17042 Humboldt near McKay camp (South Fork Mountain); , near McKay camp 1676 Comment
  CAS-BOT-BC147243  Rubus parviflorus Doris K. Kildale 1926-5-14 3196 Humboldt Big Lagoon Comment
  HSC56323  Rubus parviflorus Overton, Butler 1979-8-2 12664 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CHSC19742  Rubus spectabilis Gary J. Stebbins 1970-2-21 9 Humboldt Patricks Point State Park. Comment
  UC14181  Rubus spectabilis W. C. Blasdale 1896-5-31 Humboldt Eureka Comment
  HSC32238  Rubus ursinus J. O. Sawyer 1970-6-24 2256 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  HSC74629  Rubus ursinus M. A. Baker 1980-5-17 1236 Humboldt Near Le Perron Peak 1066 Comment
  UCD17619  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 045 Humboldt California. Humboldt County: 2.3 miles north of Ettersburg on road to Honeydew. Comment
  UCD17840  Rubus ursinus H. Olmo 8-10 May 1962 62- 38 A Humboldt California. Humboldt County: along Route 36 between Grizzly Creek Redwoods State Park and Dinsmore. Comment
  POM271075B  Rubus vitifolius Lyman D. Benson 1929-7-15 1815 Humboldt Clam Beach. Trinidad. Comment
  HSC76413  Rudbeckia californica Michael Ericksen 1981-8-21 1082 Humboldt Near Dan East Cabin 1609 Comment
  HSC56448  Rudbeckia klamathensis Griswold, Butler 1979-7-12 7201 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  SEINET5710896  Rudbeckia occidentalis Lowell E. Urbatsch 1990-1 6799 Humboldt From Calif. 99 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork; take the left fork (not leading to Denny but to Waterman Ridge and Zeigler Point) and travel 6.7 miles down this road to another fork. Take the rt. fork (away from the rd. leading to Waterman Ridge and Willow Creek). On this rd. (FD 7 NO4) travel 1.5 miles to another fork; continue on 7No4N (the left fork) for 7.4 miles. At this point, take 7NO4N, the rd to Groves Prairie. The collection site is about 50m to the right near the Groves Prairie Creek sign. The site is 17.9 miles from Hawkins Bar just beyond mile marker 9.; Groves Prairie Comment
  HSC55223  Rumex acetosella Walter Overton 1979-8-1 12397 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC44539  Rumex acetosella Brad Klipfel 1973-7-15 155 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC102195  Rumex californicus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1109 Humboldt Andy's Camp 1564 Comment
  RSA755178  Rumex obtusifolius Robert F. Thorne, Percy C. Everett 1965-8-8 35261 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  CAS-BOT-BC109293  Rumex paucifolius R. K. Gierisch; D. H. Esplin 1969-7-1 3538 Humboldt Six Rivers. Grouse Mountain. 1584 Comment
  UC176683  Rumex pulcher Joseph P. Tracy 1912-6-9 3645 Humboldt Alton Northern Coast Region 30 Comment
  HSC38328  Rumex salicifolius Peter Sorensen 1976-8-8 Humboldt King Salmon Comment
  UC1191279  Rumex salicifolius var. transitorius Malcolm A. Nobs and S. Galen Smith 1958-8-9 1237 Humboldt s end Blue Lake (town) (on Mad River); Mad River Comment
  UC1222604  Rupertia physodes Joseph P. Tracy 1950-6-15 18783 Humboldt 7 mi n Harris; Mail Ridge, Jenk's Ranch Comment
  POM161039  Sagina procumbens Joseph P. Tracy 1920-6-6 5338 Humboldt Freshwater Creek near Wrangletown. 30 Comment
  CAS-BOT-BC445641  Sagittaria cuneata Henry M. Pollard 1945-8-28 s.n. Humboldt Near Orleans. Pond near Harley place 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
  RSA246919  Salicornia virginica R. F. Thorne, P. Everett 1965-8-7 35205 Humboldt Samoa Peninsula. 0 Comment
  CAS-BOT-BC129886  Salix bonplandiana Mrs. H. P. Bracelin 1931-5-1 270 Humboldt Sylvandale, between Miranda and Meyers, South Fork of Eel River Comment
  CAS-BOT-BC129888  Salix bonplandiana Mrs. H. P. Bracelin 1931-5-1 271 Humboldt Sylvandale, between Miranda and Meyers, South Fork of Eel River Comment
  CAS-BOT-BC129893  Salix bonplandiana Joseph P. Tracy; Harold E. Parks 1942-5-16 11567 Humboldt Vicinity of Garberville 152 Comment
  JEPS13099  Salix eastwoodiae Joseph P. Tracy 1935-7-26 14264 Humboldt meadows at Water Dog Lakes 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
  CAS-BOT-BC103814  Salix exigua Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01234 Humboldt On floodplain of the Van Duezn River, 1 1/2 miles east of Alton 30 Comment
  HSC99700  Salix exigua Glenn W. K. Shelton 2010-7-10 30 Humboldt Van Duzen River along State Rte. 36, 2 mi. W of Grizzly Creek Redwoods State Park, across from mile marker 15.00 91 Comment
  UC1196561  Salix exigua J. P. Tracy 1900-9-9 943 Humboldt Yager Creek near Hydesville (along a slough) 91 Comment
  SD992  Salix exigua var. hindsiana Herold E. Parks 1931-5-14 958 Humboldt Fernbridge, Eel River, on gravel bars 10 Comment
  UC1196605  Salix exigua var. hindsiana Joseph P. Tracy, C. R. Ball, and H. E. Parks 1932-5-17 10096 Humboldt Trinity R. opposite Willow Creek; North Coast Ranges 152 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-BC106861  Salix hookeriana W. J. Ferlatte 1967-6-13 1117 Humboldt near mouth of Mad River 3 Comment
  CAS-BOT-BC107678  Salix hookeriana L. R. Abrams; G. T. Benson 1924-5-17 10732 Humboldt Lagoon between the Mad and Little Rivers Comment
  CAS-BOT-BC107717  Salix hookeriana Doris K. Kildale 1926-6-18 2409 Humboldt Gold Bluffs, coastal bluffs Comment
  CAS-BOT-BC107726  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1210 b Humboldt Little River Lagoon, 4 1/2 miles south of Trinidad Comment
  CAS-BOT-BC107730  Salix hookeriana Harold E. Parks 1931-3-24 914 Humboldt Eel River, Fortuna 10 Comment
  CAS-BOT-BC107746  Salix hookeriana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 1225 Humboldt In pine barrens near the coast, 1 mile north of Samoa Comment
  CAS-BOT-BC107748  Salix hookeriana Harold E. Parks 1931-5-12 956 Humboldt Samoa, Humboldt Bay Comment
  CAS-BOT-BC107758  Salix hookeriana Harold E. Parks 1931-8-1 01053 Humboldt Little River Lagoon Comment
  HSC40860  Salix hookeriana Linda M. Barker 1976-4-13 1380 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata Comment
  HSC40863  Salix hookeriana Linda M. Barker 1976-4-30 1416 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata Comment
  HSC59447  Salix hookeriana Kenneth Clark 1979-4-3 34 Humboldt Manila, SW from end of Old Samoa Rd. Comment
  JEPS79975  Salix hookeriana Joseph P. Tracy 1941-3-9 16800 Humboldt along Eel R. (Camp Grant); along Eel River 48 Comment
  SD939  Salix hookeriana Harold E. Parks August 1931 1053 Humboldt Little River Lagoon Comment
  UC1196544  Salix hookeriana Joseph P. Tracy 1935-3-3 13715 Humboldt near mouth Mad R. 6 Comment
  UC1225776  Salix hookeriana Joseph P. Tracy 1948-4-4 17959 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  UC146208  Salix hookeriana J. P. Tracy 1904-4-3 2011 Humboldt Immediate vicinity of Eureka 0 Comment
  UC249537  Salix hookeriana Joseph P. Tracy 1922-3-26 5984 Humboldt Fieldbrook Northern Coast Region 60 Comment
  UC275499  Salix hookeriana Joseph P. Tracy 1925-4-5 6952 Humboldt near Kneeland Prairie (near Loren Frost place on Kneeland Road); Northern Coast Ranges 609 Comment
  UC275504  Salix hookeriana Joseph P. Tracy 1925-11-8 7312 Humboldt Fieldbrook Northern Coast Ranges, Fieldbrook 60 Comment
  UC469128  Salix hookeriana Joseph P. Tracy 1931-4-4 9330 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC481277  Salix hookeriana Harold E. Parks 1931-8-1 1053 Humboldt Little River Lagoon Comment
  UC481333  Salix hookeriana Harold E. Parks 1931-5-27 998 Humboldt Bishop Pine Lodge Trinidad 76 Comment
  UC481397  Salix hookeriana Harold E. Parks 1931-3-24 914 Humboldt Fortuna Eel River (banks of river) 10 Comment
  UC519342  Salix hookeriana Joseph P. Tracy 1933-10-8 13087 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UCD111020  Salix hookeriana Carleton R. Ball; Harold E. Parks and Joseph P. Tracey 1932-5-11 01210 a Humboldt Little River Lagoon, 4 1/2 miles south of Trinidad. Comment
  UC481824  Salix laevigata Mrs. H. P. Bracelin 1931-5-1 272 Humboldt between Miranda and Meyers (Sylvandale Station, Redwood Hwy., S. Fork Eel R.); Sylvandale Station, Redwood Hwy., S. Fork Eel R. Comment
  UC504056  Salix lasiandra subsp. lasiandra Jim Davis Apr 25 1933-Apr 27 1933 3 Humboldt around Eureka Eureka Comment
  CAS-BOT-BC128192  Salix lasiandra var. lasiandra Harold E. Parks; Susan T. Parks 1932-5-12 1150 Humboldt In swamp near bridge at mouth of Maple Creek, Big Lagoon Comment
  CAS-BOT-BC107619  Salix lasiolepis Doris K. Kildale 1927-3-22 2934 Humboldt Samoa Peninsula Comment
  HSC20014  Salix lasiolepis H. E. Parks 1931-8-25 1059 Humboldt Blue Slide, Van Duzen River 91 Comment
  POM219356  Salix lasiolepis Joseph P. Tracy 1931-3-31 9327 Humboldt Redwood Creek. At Berry's. 274 Comment
  UC1225925  Salix lasiolepis Joseph P. Tracy 1942-7-26 17296 Humboldt near Redwood House; South Yager Creek 609 Comment
  UC1225927  Salix lasiolepis Joseph P. Tracy 1947-6-28 17755 Humboldt Bridgeville Van Duzen River 198 Comment
  UC469403  Salix lasiolepis Joseph P. Tracy 1931-9-20 9689 Humboldt near R.R. Station Trinidad; Northern Coast Region, Trinidad 60 Comment
  UC469437  Salix lasiolepis Joseph P. Tracy 1931-10-12 9731 Humboldt Dinsmore's Ranch Northern Coast Ranges, Van Duzen River (opposite Buck Mt.) 670 Comment
  UC481340  Salix lasiolepis Harold E. Parks 1931-10-15 1076 Humboldt Bishop Pine Lodge Trinidad; , Bishop Pine Lodge 75 Comment
  UC506396  Salix lasiolepis Joseph P. Tracy 1932-10-8 10865 Humboldt Berry's Mt. Northern Coast Ranges (on Trinity Hwy) 762 Comment
  UC512031  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1328 Humboldt e Redwood Creek (w slope of mt., on Trinity Hwy); Berry's Mountain 762 Comment
  UC526716  Salix lasiolepis Joseph P. Tracy 1934-3-11 13146 Humboldt Weitchpec Northern Coast Ranges, Klamath River 91 Comment
  UCD111583  Salix lasiolepis Carleton R. Ball; Harold E. Parks, Joseph P. Tracy 1932-5-13 01254 Humboldt Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road. Comment
  CAS-BOT-BC107299  Salix lasiolepis var. bigelovii Harold E. Parks; Joseph P. Tracy 1931-5-17 0976 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC107410  Salix lasiolepis var. lasiolepis Doris K. Kildale 1927-5-13 3148 Humboldt Redwood Creek at Berry's 289 Comment
  SBBG57838  Salix lucida subsp. lasiandra H. E. Parks 1931-3-24 911 Humboldt banks of Eel River, Fortuna 10 Comment
  POM218958  Salix melanopsis H. P. Bracelin 1931-5-2 284 Humboldt E of Redwood Hwy, 6km S of Alton. 20 Comment
  POM220111  Salix melanopsis H. E. Parks, Joseph P. Tracy 1931-5-17 974 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  SJSU193  Salix melanopsis H. E. Parks 1931-5-14 960 Humboldt Van Duzen R between Alton & Carlotta 15 Comment
  UC1173616  Salix melanopsis Joseph P. Tracy 1937-8-3 15611 Humboldt near Blue Lake (along Mad R.); Mad R. 15 Comment
  UC1196636  Salix melanopsis Joseph P. Tracy 1932-5-1 9845 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R. 30 Comment
  UC469456  Salix melanopsis Joseph P. Tracy 1931-9-7 9632 Humboldt Trinity R. Valley at Willow Creek Bridge; Northern Coast Ranges, Trinity R Valley, Willow Creek 152 Comment
  UC470453  Salix melanopsis Joseph P. Tracy 1931-9-7 9646 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC481265  Salix melanopsis Harold E. Parks 1931-5-28 1019 Humboldt Little River Lagoon Comment
  UC481288 Image available Salix melanopsis Harold E. Parks 1931-5-14 962 Humboldt between Alton and Carlotta; Van Duzen River; Van Duzen River, Humboldt Co. 15 Comment
  UC481307  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 972 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC519373  Salix melanopsis Joseph P. Tracy 1933-5-20 12262 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  CAS-BOT-BC129170  Salix scouleriana Joseph P. Tracy 1933-4-2 10957 Humboldt Willow Creek Canyon 609 Comment
  JEPS13086  Salix scouleriana Joseph P. Tracy 1936-2-2 14766 Humboldt vicinity of Carlotta 30 Comment
  UC1196693  Salix scouleriana Joseph P. Tracy 1924-1-20 6597 Humboldt near bay shore Samoa (around Humboldt Bay); Northern Coast Region, Humboldt Bay 3 Comment
  UC506350  Salix scouleriana Joseph P. Tracy 1933-4-2 10957 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 609 Comment
  UC525974  Salix scouleriana H. E. Parks 1932-11-25 1351 Humboldt Spruce Cove (Parks Ranch) Trinidad; , Spruce Cove (Parks Ranch) Comment
  UCR143480  Salix scouleriana H. E. Parks 1931-5-12 0951 Humboldt North Coast, Bishop Pine Lodge, Trinidad 150 Comment
  CHSC13719  Salix sitchensis E. L. Smith 1971-8-17 1020 Humboldt On the Van Duzen River ca. 18 mi s of Eureka. Comment
  HSC20104  Salix sitchensis J. P. Tracy 1933-7-16 12773 Humboldt S Fork Mtn., Mckay Camp 1677 Comment
  HSC38135  Salix sitchensis Thomas W. Nelson, James Nelson 1976-3-23 3280 Humboldt Van Duzen River at Grizzley Creek Comment
  HSC38145  Salix sitchensis Thomas W. Nelson 1976-11-3 3279 Humboldt Eureka, E side of F St., 3800 block Comment
  HSC79548  Salix sitchensis Kenneth Clark 1980-3-27 548 Humboldt Creek on W slope of Dead Man's Gulch 114 Comment
  HSC90385  Salix sitchensis Jean Hanson 1980-4-12 50 Humboldt Indian (Gunther) Island, Humboldt Bay, W end of island Comment
  HSC90424  Salix sitchensis Jean Hanson 1980-3-8 8 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC99439  Salix sitchensis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 89 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  POM219568  Salix sitchensis H. E. Parks 1931-3-24 910 Humboldt Trinidad. 90 Comment
  UC1173577  Salix sitchensis Joseph P. Tracy 1936-6-27 15007 Humboldt along S. Fork Eel R. Miranda; S. Fork Eel R. 91 Comment
  UC203992  Salix sitchensis Joseph P. Tracy 1918-4-13 4869 Humboldt Jacoby Creek Quarry; Northern Coast Ranges, Jacoby Creek Quarry 91 Comment
  UC490531  Salix sitchensis Joseph P. Tracy 1932-7-18 10724 Humboldt head of Brett Hole; Klamath Mts., Trinity Summit, Brett Hole 1828 Comment
  UC492342  Salix sitchensis Harold E. and Susan T. Parks 1932-4-12 1111 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 90 Comment
  UC55407  Salix tracyi Mrs. M. H. Manning 1932-4 Humboldt Hupa Comment
  SBBG25338  Sambucus nigra subsp. caerulea D. G. Forbes 1966-4-4 66 -432 Humboldt 1 mi N of Fresh Water Lagoon, US Hwy 101 30 Comment
  UC1119899  Sambucus racemosa var. racemosa R. Stahelin 1933-7-19 Humboldt Korbel Eureka Quadrangle (near Riverside plant) Comment
  UCD137263  Sambucus racemosa var. racemosa Joseph P. Tracy 1941-3-9 16803 Humboldt Camp Grant, near junction of South Fork and main Eel River. 60 Comment
  UC642281  Sanicula arctopoides Joseph P. Tracy 1936-5-30 14838 Humboldt near Samoa (on Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  HSC77517  Sanicula arctopoides K. Berg 1984-4-8 527 Humboldt South spit of Humboldt Bay, 1.4 mi. S of South Jetty, E of road Comment
  UC183563  Sanicula bipinnatifida Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3606 Humboldt near Hydesville (Northern Coast Region); Northern Coast Region 30 Comment
  CHSC35577  Sanicula crassicaulis Jacqueline Greenleaf 1980-5-23 87 Humboldt Near Dinsmores. 430 Comment
  UC1022529  Sanicula crassicaulis C. Ritchie Bell 1952-5-3 3 X449 Humboldt 5 mi n of Loleta (to e of U.S. Hwy 101) Comment
  HSC38885  Sanicula graveolens J. O. Sawyer 1970-6-25 2297 Humboldt 1646 Comment
  UCD128031  Sanicula laciniata R. N. Raynor 1935-3-2 s.n. Humboldt Fort Seward. Comment
  HSC101038  Sanicula tracyi A. Thoele, D. Pederson 1995-7-2 61 Humboldt East side of Pilot Creek, FB5 (fuel break) skid trail. 1188 Comment
  HSC45599  Sanicula tracyi Thomas W. Nelson 1978-5-27 4091 Humboldt McKneown Ranch N of Dinsmore. Comment
  HSC68622  Sanicula tracyi Jacqueline Greenleaf 1980-8-5 281 Humboldt Near Dairy Creek. 1158 Comment
  UC249600  Sanicula tuberosa Joseph P. Tracy 1922-5-29 6074 Humboldt Northern Coast Ranges, Head of South Yager Creek South Yager Creek; Northern Coast Ranges, South Yager Creek 762 Comment
  UC1239685  Satureja douglasii Joseph P. Tracy 1911-7-5 3332 Humboldt in woods along Willow Creek (tributary of Trinity River) (near its mouth); Northern Coast Ranges 152 Comment
  UC1198882  Saxifraga marshallii Joseph P. Tracy 1937-7-24 15511 Humboldt 2 mi se of Devil's Hole; Trinity Summit 1584 Comment
  UC902007  Saxifraga mertensiana Joseph P. Tracy 1941-4-11 16858 Humboldt Willow Creek Canyon, along Trinity Highway Willow Creek Canyon 304 Comment
  HSC55745  Saxifragopsis fragarioides G. L. Clifton, Griswold 1979-7-26 10267 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UCD65995  Schedonorus arundinaceus Linda M. Barker 1976-6-1 1566 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC668018  Scirpus acutus var. occidentalis Joseph P. Tracy 1934-7-20 13472 Humboldt Big Lagoon 3 Comment
  CDA39145  Scirpus microcarpus Gordon Leppig 1998-6-26 861 Humboldt Arcata; Alder Grove Pond, south side of pond. Comment
  CHSC20041  Scoliopus bigelovii M. S. Taylor 1975-4-12 465 Humboldt Ca. 1 mi w of Berry Summit on Hwy 299, ca. 6 mi w of Willow Creek. 762 Comment
  UCD139809  Scoliopus bigelovii K. Esau 1934-4-1 s.n. Humboldt Above Fort Seward. Comment
  HSC92543  Scoliopus bigelovii S. Morrissette, J. Williams, K. Kopper 1994-3-28 5 Humboldt On Lost Coast Trail, 2.25 mi. S of Bear Harbor Camp in J. Smeaton Chase Grove Comment
Read comments
Mar 9 2013
  SEINET12051381  Scoliopus bigelovii F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -279 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  SEINET926248  Scoliopus bigelovii Joseph P. Tracy 1950-1 18611 Humboldt 1 mile west of Dinsmore's. Along Van Duzen River, opposite Buck Mountain. 762 Comment
  HSC77906  Scrophularia californica L. P. Janeway, Paul Wilson 1984-5-7 759 Humboldt On the N Spit of Humboldt Bay, on BLM lands near the Coast Guard Station 3 Comment
  HSC89423  Scrophularia californica P. A. Daly 1984-5-8 13 Humboldt Trinidad Head 61 Comment
  JEPS6741  Scrophularia californica Joseph P. Tracy 1937-7-30 15565 Humboldt 6 mi s Arcata (Fickle Hill) 609 Comment
  UC582593  Scrophularia californica Joseph P. Tracy 1933-8-22 12980 Humboldt Eureka 6 Comment
  UCSB15626  Scrophularia californica Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  HSC90314  Scrophularia californica Jean Hanson 1981-5-10 139 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka, W end of island Comment
  RSA475245  Scrophularia californica Lyman D. Benson 1938-7-11 385 Humboldt Weott Ranger Station. Seaward N Coast Mtn range, S Fork Eel River. 61 Comment
  HSC14396  Scutellaria antirrhinoides H. E. Parks, J. P. Tracy 1934-6-27 11061 Humboldt Grouse Mtn. 1433 Comment
  UC1586911  Scutellaria antirrhinoides Juha Pykala and D. H. Norris 1987-5-20 794 Humboldt along Bull Creek Road from Panter Gap to 4 mi s of Panther Gap 243 Comment
  JEPS62895  Scutellaria californica Lincoln Constance 1934-6-27 936 Humboldt on s side of Eel River (near it's junction with the South Fork, at end of railroad bridge, 1/2 mi nw of South Fork P.O and R. R. Station); Bull Creek Region, Eel River Comment
  JEPS62896  Scutellaria californica Joseph P. Tracy 1937-7-19 15453 Humboldt Buck Mountain 914 Comment
  RSA34313  Scutellaria californica L Larsen 1935-5-28 s.n. Humboldt Redway. Comment
  UC1222178  Sedum divergens Joseph P. Tracy 1935-7-24 14199 Humboldt near Ranger Station (Trinity Summit); , near Ranger Station 1828 Comment
  HSC99534  Sedum laxum subsp. flavidum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 199 Humboldt Near North Trinity Mtn, along trail to Water Dog Lakes, Six Rivers National Forest. 1829 Comment
  CAS-BOT-BC63879  Sedum laxum subsp. heckneri Joseph P. Tracy 1935-7-30 14363 Humboldt Salmon summit. 1767 Comment
  CAS-BOT-BC63881  Sedum laxum subsp. heckneri David Imper 1985-7-1 s.n. Humboldt Slopes of Onion Mountain. 1219 Comment
  HSC79263  Sedum laxum subsp. heckneri D. K. Imper 1983-6-28 Humboldt Six Rivers National Forest, Trinity River Canyon, 2 mi. S of Weitchpec Comment
  HSC57996  Sedum obtusatum subsp. retusum G. L. Clifton, Griswold 1979-7-31 11759 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC32276  Sedum obtusatum subsp. retusum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5627 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC74677  Sedum spathulifolium Gail Newton 1981-5-16 2170 Humboldt Near Bug Creek. 1228 Comment
  UC205171  Sedum spathulifolium Harley P. Chandler June, 1901 1379 b Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  CAS-BOT-BC59120  Sedum spathulifolium subsp. pruinosum Alice Eastwood 1907-4-22 38 Humboldt Port Trinidad Comment
  LA209676  Selaginella oregana Lawrence L. Kiefer; 1963-8-6 769 Humboldt Patrick's Point State Park, Lookout Rock 45 Comment
  UC1713630  Selaginella oregana Don Branscomb 1957-12-26 Humboldt Lookout rock Patrick's Point Comment
  HSC99136  Selaginella wallacei C. Witte 2008-10-18 1063 Humboldt Horse Mountain Botanical Area. Approxmiately 1 mile north of Horse Mountain Communication Towers. Forest Service Road 6N66 1456 Comment
  RSA275307  Senecio elegans Thomas W. Nelson 1978-4-23 3880 Humboldt Adventive on coastal dunes northwest of Samoa Comment
  UC1199500  Senecio glomeratus Joseph P. Tracy 1936-8-23 15167 Humboldt near Carlotta 30 Comment
  UC581697  Senecio glomeratus Joseph P. Tracy 1934-7-3 13306 Humboldt Walkers Point 9 Comment
  HSC6156  Senecio integerrimus var. major H. E. Parks, J. P. Tracy 1930-5-25 879 Humboldt Laribee Valley 762 Comment
  UC91378  Senecio integerrimus var. major Harley P. Chandler June 1901 1274 Humboldt Hupa Indian Reservation North Coast Ranges 1036 Comment
  UC1118080  Senecio minimus H. L. Person 1931-7-30 Humboldt Fieldbrook Eureka Quad., Fieldbrook Comment
  UCD135618  Senecio minimus S. W. Cosby 1921-9-27 s.n. Humboldt south of Ferndale. Comment
  CAS-BOT-BC364330  Senecio triangularis Joseph P. Tracy 1932-7-13 10523 Humboldt Trinity Summit. Corral Prairie 1584 Comment
  HSC70462  Senecio triangularis Gail Newton 1980-7-20 1630 Humboldt Near Bell Swamps 1426 Comment
  HSC67893  Senecio vulgaris J. P. Smith 1973-5-26 6840 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC6135  Senecio vulgaris S. R. Johnson 1965-4-16 42 Humboldt 1 mi. N of Luffenholtz Beach Comment
  RSA0009753  Senecio vulgaris Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville Comment
  HSC49960  Sequoia sempervirens Maralyn O'Meara 1973-2-9 121 Humboldt McKinleyville, N side of Mad River along N Bank Rd., 0.5 mi. E of Hwy. 101 Comment
  JEPS48272  Sequoia sempervirens Joseph P. Tracy 1940-10-17 16770 Humboldt Dyerville 48 Comment
  SEINET11737925  Sequoia sempervirens J. P. Tracy 1950-1 19387 Humboldt At Park's place, Trinidad 61 Comment
  SEINET11739296  Sequoia sempervirens R. J. Mastrogiuseppe 1966-1 s.n. Humboldt along state route 229 from Arcata to Redding, Demonstration Forest, Simpson Timber Co Comment
  SEINET3876370 Image available Sequoia sempervirens Ronald J. Mastrogiuseppe 1966-1-16 s.n. Humboldt Along State Route 299 from Arcata to Redding, Demonstration Forest, Simpson Timber Company.; 0 Comment
  CAS-BOT-BC364783  Sericocarpus oregonensis subsp. oregonensis Doris K. Kildale 1926-8-22 2589 Humboldt On Orick - Martin's Ferry road 716 Comment
  UC170180  Sidalcea asprella subsp. nana Harley P. Chandler June, 1901 1466 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  UC1224688  Sidalcea malachroides D. E. Anderson 1963-5-26 2502 Humboldt in alluvial gravel beds along s side Jacoby Creek; along s side of Jacoby Creek Comment
  SEINET11982176  Sidalcea malachroides J. P. Tracy 1950-1 19034 Humboldt on Butter Valley Rd, 2 mi E of Cameron Hill Jct near Kneeland Comment
  HSC99563  Sidalcea oregana subsp. eximia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 228 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
  JEPS67258  Sidalcea oregana subsp. eximia W. L. Jepson 1921-8-7 9324 Humboldt Dow's Prairie Comment
  HSC40101  Sidalcea oregana subsp. oregana Thomas W. Nelson, James Nelson 1976-7-28 3045 Humboldt Alder Springs Campground along 2S08 1555 Comment
  HSC74227  Sidalcea oregana subsp. spicata M. A. Baker 1980-7-22 3089 Humboldt Near Grogan Hole. 1676 Comment
  RSA95266  Sidalcea oregana subsp. spicata F. W. Peirson 1923-7-11 3778 Humboldt Along road 7 miles north of Arcata. Comment
  UC1198364  Silene antirrhina Joseph P. Tracy 1911-7-12 3519 Humboldt mountain slopes along road between Three Creeks and mouth Willow Creek; Northern Coast Ranges, btw Three Creeks and mouth Willow Cre 762 Comment
  HSC35274  Silene bolanderi A. M. Montalvo, J. D. Ackerman 1975-6-22 493 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36. Comment
  HSC100416  Silene californica Carl C. Marshall Jun 1885 93 Humboldt Hills everywhere. Comment
  UC659355  Silene californica Lincoln Constance, Alan A. Beetle 1940-5-16 2610 Humboldt coastal bluffs above Alton; above Alton Comment
  HSC56992  Silene campanulata Overton, Butler 1979-7-24 9559 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  UC668097  Silene campanulata Joseph P. Tracy 1933-7-25 12871 Humboldt Grouse Mountain 1524 Comment
  HSC102130  Silene campanulata subsp. glandulosa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1034 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UCD98674  Silene gallica H. E. Parks; S. T. Parks 1937-5-1 5938 Humboldt Trinidad, Spruce Cove. Comment
  HSC100417  Silene gallica Carl C. Marshall May 1885 73 Humboldt Dry soils, roadsides, etc. Comment
  HSC23821  Silene gallica R. A. Vanbianchi 1971-6-14 1 Humboldt Comment
  HSC4187  Silene gallica R. J. Vernimen 1963-3-21 23 Humboldt Clam Beach Lagoons, 10 mi. N of Arctata Comment
  JEPS50880  Silene grayi Joseph P. Tracy 1926-6-20 7628 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  UC1198358  Silene hookeri Joseph P. Tracy 1922-4-30 5999 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC181220  Silene hookeri subsp. bolanderi Volney Rattan 1883-1-1 s.n. Humboldt Mad River Comment
  CAS-BOT-BC389048  Silene laciniata subsp. californica Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC389056  Silene laciniata subsp. californica Carl B. Wolf 1927-8-28 1175 Humboldt On the grade 9 mi. from Willow Creek, Lord Ellis Road to Blue Lake Comment
  HSC23733  Silene laciniata subsp. californica Tim Baroni 1971-7-6 114 Humboldt 3 mi. S of Ferndale on Mattole Rd. Comment
  CAS-BOT-BC389058  Silene laciniata subsp. californica H. E. Parks 1930-5-1 0751 Humboldt Vicinity of Hydesville Comment
  HSC102046  Silene lemmonii M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 949 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  CAS-BOT-BC364798  Silybum marianum Doris K. Kildale 1926-7-14 2376 Humboldt Trinidad Comment
  HSC44158  Sisyrinchium bellum Thomas W. Nelson, Jane P. Nelson 1977-7-4 3589 Humboldt W side of road N from Alder Spring, head of N Fork of Conley Creek 1555 Comment
  UC666975  Smilacina racemosa Joseph P. Tracy 1938-7-7 16038 Humboldt Grouse Mountain 1524 Comment
  UC15050  Smilacina racemosa Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5497 Humboldt Camp Grant to Pepperwood; North Coast Ranges Comment
  UC13803  Smilax californica Chesnut and Drew 1888-7-23 Humboldt Hy-Am-Pum Comment
  HSC69581  Solanum americanum R. Kalal 1980-6-8 15 Humboldt E of Clam Beach along slough 18 Comment
  HSC61867  Solanum aviculare John Sanders 1980-9-22 Humboldt Crannell, L side of trail N of Christie Ranch 61 Comment
  NY821311  Solanum laciniatum H. H. Smith 1911-6-17 3857 Humboldt Samoa Comment
  HSC98036  Solanum parishii Cara Witte 2007-7-19 548 Humboldt Ammon Ridge Rd., 2 mi. E of intersection with National Forest 1. 1453 Comment
  SBBG70622  Solanum umbelliferum S. W. Hutchinson -Apr-1927 978 Humboldt near Eureka 243 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
  CAS-BOT-BC154216  Solanum umbelliferum H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1219 Comment
  CAS-BOT-BC157484  Solanum umbelliferum H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. Trail 1524 Comment
  RSA167235  Solanum umbelliferum Joseph P. Tracy 1950-6-18 18851 Humboldt Open places at edge of thicket, Briceland. Comment
  POM187917  Solidago canadensis subsp. elongata Marcus E. Jones 1931-7-12 29135 Humboldt Alton. Comment
  POM203673  Solidago canadensis subsp. elongata I. L. Wiggins 1932-7-25 5895 Humboldt Roadside near McKinleyville. Comment
  CAS-BOT-BC365441  Solidago elongata Carl B. Wolf 1937-9-9 9311 Humboldt North Coast Range, Wildcat Ridge, 6 3/10 mi. So. of Ferndale 304 Comment
  HSC6179  Solidago velutina subsp. californica J. P. Tracy 1937-9-5 15682 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC1199285  Soliva sessilis Joseph P. Tracy 1919-5-31 5166 1/2 Humboldt Valley of Trinity River near mouth Willow Creek; Northern Coast Ranges, Valley of Trinity River, mouth Willow 152 Comment
  UC1199287  Soliva sessilis Joseph P. Tracy 1914-5-14 4430 Humboldt Fort Seward , Fort Seward (Northern Coast Ranges) 121 Comment
  HSC6218  Sonchus asper S. R. Johnson 1965-3-15 11 Humboldt 1 mi. N of Luffenholtz Beach Comment
  UC205632  Sorbus scopulina var. cascadensis Joseph P. Tracy 1919-9-24 5292 Humboldt Trinity Summit Comment
  HSC102103  Sorbus sitchensis var. sitchensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1006 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC176175  Sparganium erectum subsp. stoloniferum Joseph P. Tracy 1912-10-20 3987 Humboldt Loleta Northern Coast Ranges, Eel Valley (lower Eel Valley) 15 Comment
  UC249860  Spartina densiflora Joseph P. Tracy 1924-8-4 6738 Humboldt Eureka Northern Coast Ranges (salt marsh at railroad station) 0 Comment
  UCD92969  Spartina densiflora Keith B. Macdonald 1965-9-1 s.n. Humboldt Arcata, along Humboldt Bay. Comment
  SJSU8458  Spergularia canadensis var. occidentalis H. T. Harvey 1977-7-6 614 Humboldt South Spit, Humboldt Bay Comment
  HSC90774  Spergularia macrotheca var. macrotheca Gail Newton 1983-8-21 3857 Humboldt Elk River Wildlife Area, Eureka. Comment
  CAS-BOT-BC390612  Spergularia rubra R. K. Gierisch; D. H. Esplin 1969-7-1 3536 Humboldt Six Rivers National Forest. Grouse Mtn. Comment
  POM312888  Spiraea douglasii Malcolm A. Nobs, S. Galen Smith 1949-8-9 1226 Humboldt 1 m N of Arcata at jct of Hwys 101 and 229. Mad River Valley. Comment
  RSA239688  Spiraea douglasii Larry E. DeBuhr 1973-4-23 996 Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  RSA472779  Spiraea douglasii Charlotte M. Hoak 1931-7-14 s.n. Humboldt Alton. Comment
  UC1199029  Spiraea douglasii Joseph P. Tracy 1924-7-13 6734 Humboldt Big Lagoon; Northern Coast Region 6 Comment
  UC275298  Spiraea douglasii R. M. Holman 1925-7-23 Humboldt Big Lagoon Comment
  UC492192  Spiraea douglasii Joseph P. Tracy 1932-8-28 10760 Humboldt Bald Mountain Northern Coast Ranges (at Lake Prairie) 1066 Comment
  HSC19746  Spiraea splendens var. splendens R. J. Vernimen 1963-3-25 14 Humboldt Along railroad tracks at Clam Beach lagoons Comment
  UC13535  Spiranthes romanzoffiana Chesnut and Drew 1888-8-11 Humboldt Eureka Comment
  JEPS64518  Spiranthes romanzoffiana W. L. Jepson 1936-8-17 17932 Humboldt near Arcata; Mad River, Arcata bottom Comment
  SFV18496  Stachys ajugoides var. rigida J. A. Riddell 2002-4-19 58 Humboldt Arcata. On the banks of Campbell Creek 10 Comment
  UC577326  Stachys ajugoides var. rigida Joseph P. Tracy 1937-8-12 15652 Humboldt Snow Camp 1402 Comment
  UC630494  Stachys ajugoides var. rigida H. E. and S. T. Parks 1937-7 24025 Humboldt Spruce Cove Trinidad 60 Comment
  UCLA70846  Stachys ajugoides var. rigida Joseph P. Tracy 1934-7-18 13455 Humboldt Grouse Mountain North Coast Ranges 1615 Comment
  UCLA70847  Stachys ajugoides var. rigida Joseph P. Tracy 1937-8-12 15652 Humboldt Snow Camp 1402 Comment
  UCLA71116  Stachys ajugoides var. rigida H. Lewis 1940-7-2 Humboldt Stone Lagoon Comment
  UCLA70845  Stachys ajugoides var. rigida C. Epling Aug 1933 Humboldt on Weaverville-Arcata Road Willow Creek Comment
  UCLA71115  Stachys ajugoides var. rigida H. Lewis 1940-7-3 Humboldt Little River Beach State Park Comment
  RSA34043  Stachys bullata A. A. Heller 1923-7-9 s.n. Humboldt Between Eureka and Fortuna. Comment
  HSC39166  Stachys mexicana D. E. Anderson, J. P. Smith 1971-6-28 - 1237 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC46038  Stachys mexicana Catherine Chin 1978-5-5 55 Humboldt 17.4 mi. S of Ferndale on Mattole Rd. 91 Comment
  UCR84759  Stachys rigida var. quercetorum Kathy Harper 1992-5-14 s.n. Humboldt Coast Range, Van Duzen River, c. 1.5 mi. west of Bridgeville on State Hwy 36 195 Comment
  CAS-BOT-BC175343  Stellaria borealis subsp. sitchana W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  UC1586791  Stellaria crispa Juha Pykala 1987-6-20 1853 Humboldt Kneeland Greenwood Heights; n of Prof. D. H. Harris house 350 Comment
  UC162363  Stellaria crispa Joseph P. Tracy 1900-8-5 914 Humboldt Eureka; Northern Coast Region 0 Comment
  UC161039  Stellaria littoralis J. P. Tracy 1909-5-16 2968 Humboldt near Trinidad 30 Comment
  UCD99372  Stellaria media Linda M. Barker 1976-4-30 1396 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC58059  Stenanthium occidentale G. L. Clifton, Griswold 1979-8-1 11935 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  UC449998  Stephanomeria elata Joseph P. Tracy 1918-7-7 5037 Humboldt Garberville Northern Coast Ranges 152 Comment
  POM174067  Stephanomeria virgata Joseph P. Tracy 1918-7-7 5039 Humboldt Garberville. 152 Comment
  HSC97387  Stipa pulchra J. P. Tracy 1927-5-8 7963 Humboldt Phillipsville, facing S fork of Eel River 122 Comment
  CAS-BOT-BC87616  Streptanthus tortuosus Richard Spellenberg 1965-6-14 1130 Humboldt South of airport, about 5 miles east of Kneeland. Comment
  UC956549  Streptanthus tortuosus Freed W. Hoffman 1949-7-18 2863 Humboldt Red Mountain rd 9.6 mi from Eureka-Red Bluff Highway 1615 Comment
  HSC5047  Symphyotrichum chilense J. W. Johnson 1961-8-23 1048 Humboldt Arcata; along the sides of the Lanphere Co. Rd. by Mad River Slough Comment
  HSC95386  Symphyotrichum chilense Andrea Pickart 2002-7-9 174 Humboldt Bracut Marsh in zone between brackish and riparian 10 Comment
  UC1222988  Symphyotrichum chilense Joseph P. Tracy 1950-9-10 19362 Humboldt 1/2 mi s, 1 mi inland from Cape Mendocino Capetown; Cape Ridge 60 Comment
  UC1222915  Symphyotrichum hendersonii Joseph P. Tracy 1947-8-24 17902 Humboldt Box Camp Trinity Summit 1463 Comment
  POM51379  Symphyotrichum hendersonii Joseph P. Tracy 1917-9-1 4836 Humboldt Murphy Meadow, Bald Mountain 1067 Comment
  UC213323  Symphytum asperum Joseph P. Tracy June 1919 5181 Humboldt Northern Coast Region, Humboldt Bay, valley of Salmon Creek 30 Comment
  POM126512  Synthyris reniformis Joseph P. Tracy 1922-4-30 6039 Humboldt Brannan Mtn. Along road between Three Creeks and mouth of Willow Creek. 915 Comment
  UC1223146  Taraxacum officinale Joseph P. Tracy 1948-5-15 17973 Humboldt Willow Creek Trinity River Comment
  HSC30348  Taraxacum officinale Dale R. Gradek 1974-5-15 35 Humboldt Adjacent to road across the playground in Redwood Park 61 Comment
  HSC21652  Tauschia kelloggii B. R. Templeton 1962-4-14 Humboldt 3 mi. W of Orleans Comment
  HSC45931  Taxus brevifolia Jerome Peterson 1978-4-29 9 Humboldt Along bank of Redcap Creek 1.0 mi. down Millgap Rd. from Redcap Rd. Comment
  NY17379  Taxus brevifolia J. P. Tracy 1927-3-27 7865 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  POM319590  Taxus brevifolia Patricia Wilder 1968-8-22 4428 Humboldt Bull Creek Flat, Humboldt Redwood State Park, north of Weott and west of U. S. 101. Coast Mountain range, south fork of Eel River. 61 Comment
  SDSU2029  Taxus brevifolia D. F. Howe 1965-8-10 4128 Humboldt 9.8 miles west of willowcreek on #299. 884 Comment
  SJSU685  Taxus brevifolia A. W. Jacobs 1941-6-15 Humboldt border of road (Hwy 299) between Blue Lake & Redwood Creek Comment
  HSC71158  Tellima grandiflora Thomas W. Nelson 1977-6-15 3425 Humboldt Along USFS Rd. 5N10 just N of its junction with USFS Rd. 6N08 1372 Comment
  POM117233  Tellima grandiflora Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UC503058  Thelypteris nevadensis Joseph P. Tracy 1932-7-20 10743 Humboldt Trinity Summit; Klamath Mts. 1371 Comment
  HSC64140  Thermopsis macrophylla J. O. Sawyer, J. P. Smith, J. Cole 1977-7-2 3050 Humboldt Rd. 11N17 between Dagsaw Springs and Divide Lake 793 Comment
  SBBG56418  Thuja plicata M. Van Rensselaer 1938-3-31 Humboldt Humboldt County [no specific locality] Comment
  UC161492  Thysanocarpus curvipes Joseph P. Tracy 1903-5-24 1915 Humboldt Alder Point Northern Coast Ranges, Eel River (on Eel River) 152 Comment
  RSA24194  Tiarella trifoliata var. unifoliata Carl B. Wolf 1941-3-1 9979 Humboldt 1 mi. n.e. of Strongs Station (on the Van Duzen River) on rd. to Yager. 61 Comment
  SDSU9572  Tiarella trifoliata var. unifoliata D. F. Howe 1961-7-31 3097 Humboldt 12 miles N of Garberville on #101. 30 Comment
  HSC100653  Tiarella unifoliata Carl C. Marshall Jun 1886 323 Humboldt Trail E of Hoopa. Comment
  JEPS49718  Tolmiea diplomenziesii W. L. Jepson 1902-7-11 2013 Humboldt South Fork of Trinity River; Martin's Ranch Comment
  HSC74665  Tonella tenella Gail Newton 1981-6-6 2189 Humboldt Near Pilot Ridge Trail 1314 Comment
  UCSC000695  Tonella tenella J. W. Blankinship 1893-6-20 s.n. Humboldt Larrabee Creek Comment
  UC1561282  Torilis arvensis Barbara Ertter with Thomas J. Delendick 1987-5-16 6916 Humboldt Hwy 299 roadside ca 8 mi e Arcata (9 1/2 mi w of Lord Ellis summit); w of Lord Ellis summit Comment
  BLMAR228  Torilis arvensis Jennifer Anthony-Wheeler 1996-7-11 228 Humboldt N.Dobbyn creek, growing in understory of mixed evergreen forest 1005 Comment
  UC1196253  Torilis arvensis subsp. arvensis Mrs. Archie Cathey July 1933 Humboldt near Miranda (at Cathey Ranch) 304 Comment
  HSC58686  Torreyochloa pallida var. pauciflora Overton 1979-8-1 12380 Humboldt Near Mill Creek, close to the town of Hoopa 1341 Comment
  UCD93212  Torreyochloa pallida var. pauciflora A. H. Murphy 1951-6-25 69 Humboldt Snow Camp Meadows, ca. 8 miles E. NE of Kneeland. Comment
  HSC40005  Toxicodendron diversilobum Linda M. Barker 1976-9-3 1697 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC668182  Toxicodendron diversilobum Joseph P. Tracy 1937-5-30 15301 Humboldt 5 mi. n. Blocksburg (Larrabee Creek); Larrabee Creek 365 Comment
  HSC14449  Trichostema lanceolatum D. E. Anderson 1963-10-6 2878 Humboldt Mad River bed, across from Essex Junction. Comment
  JEPS63133  Trichostema lanceolatum Lincoln Constance 1934-6-14 874 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 304 Comment
  CHSC31274  Trientalis latifolia Mark Stopher 1980-5-20 70 Humboldt In dense forest along the Van Duzen River near Rte 36. Comment
  SBBG5617  Trientalis latifolia H. and M. Dearing 1933-5-16 1292 Humboldt Weott Comment
  UC302113  Trifolium bifidum var. bifidum Joseph P. Tracy 1926-5-2 7419 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  RSA249399  Trifolium cyathiferum D. E. Anderson, Thomas Nelson, S. Dowty 1972-6-17 5705 Humboldt McKeown Ranch north of Dinsmore Comment
  UC303194  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1925-5-17 6972 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  POM118629  Trifolium dubium Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  SD87601  Trifolium dubium F. W. Peirson 1923-7-11 3622 Humboldt Coast, 20 miles north of Eureka Comment
  UC1223468  Trifolium dubium Joseph P. Tracy 1948-5-31 18024 Humboldt Blocksburg Comment
  UC179921  Trifolium dubium Joseph P. Tracy 1914-7-4 4522 Humboldt between Korbel and Angels Ranch roadside; Northern Coast Ranges Comment
  HSC14995  Trifolium dubium J. W. Johnson 1962-4-18 1246 Humboldt Arcata, Mad River County Park Comment
  UC1197022  Trifolium fucatum Joseph P. Tracy 1906-6-10 2470 Humboldt nw slope Wragletown (lower foot); Northern Coast Ranges 152 Comment
  UCD109049  Trifolium fucatum Joseph P. Tracy 1950-6-8 18747 Humboldt Cape Ridge. 1 mile E of Cape Mendocino. 152 Comment
  HSC15183  Trifolium gracilentum Norman H. Moe 1962-5-19 Humboldt Lanphere's Place Comment
  UC1223454  Trifolium gracilentum Joseph P. Tracy 1934-5-13 13203 Humboldt near Samoa Comment
  HSC45170  Trifolium hirtum R. Sutherland 1978-5-16 9 .16578 Humboldt 402 Comment
  HSC97455  Trifolium hirtum Cara Witte 2007-6-7 226 Humboldt Along National Forest 1 on Kinsey Ridge. 1 mile south of intersection with 4N06. 1263 Comment
  UC1152150  Trifolium hybridum Joseph P. Tracy 1938-6-15 15926 Humboldt 2 mi s town (Field's Landing, Salmon Creek Flats, s end of bay); Humboldt Bay 6 Comment
  UC1541602  Trifolium longipes Harold E. Parks 1934-6-14 4784 Humboldt Horse Mtn 1432 Comment
  HSC40537  Trifolium longipes subsp. oreganum Thomas W. Nelson, Jane P. Nelson 1976-5-23 2527 Humboldt In the Canyon of Bear Creek, W of Black Lassic 1524 Comment
  HSC97567  Trifolium longipes subsp. shastense C. Witte 2007-5-18 44 Humboldt Near Bottleneck Spring. 1575 Comment
  UC1223370  Trifolium longipes var. hansenii Joseph P. Tracy 1950-8-8 19298 Humboldt Croghan Hole Trinity Summit 1676 Comment
  UC495658  Trifolium longipes var. oreganum Joseph P. Tracy 1927-6-12 8122 Humboldt Horse Ranges Northern Coast Ranges Comment
  HSC45142  Trifolium microcephalum R. Sutherland 1978-4-23 21 .23478 Humboldt 732 Comment
  HSC15150  Trifolium microdon J. W. Johnson 1962-6-4 1430 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  UCD109162  Trifolium microdon Linda M. Barker 1976-6-1 1544 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  JEPS4430  Trifolium obtusiflorum Harley P. Chandler June, 1901 1322 Humboldt Hupa Indian Reservation North Coast Ranges Comment
  JEPS4443  Trifolium oliganthum Joseph P. Tracy 1921-4-24 5438 Humboldt facing South Fork of Eel River (Phillipsville); Northern Coast Ranges 121 Comment
  HSC70318  Trifolium repens M. A. Baker 1980-6-7 1869 Humboldt Near Ammon Creek 732 Comment
  UC165581  Trifolium repens Harley P. Chandler May, 1902 1092 Humboldt Scotia North Coast Ranges 60 Comment
  HSC100539  Trifolium repens Carl C. Marshall May 1886 205 Humboldt Everywhere. Comment
  HSC28180  Trifolium repens Richard Curtis 1973-9-27 18 Humboldt Arcata, on the N side of 7th St. just before it crosses the freeway. Comment
  UCD109390  Trifolium subterraneum R. Tofsrud 1949-7-1 s.n. Humboldt Hydesville. Comment
  HSC45116  Trifolium variegatum R. Sutherland, R. Sutherland 1978-5-19 13 .19578 Humboldt 134 Comment
  JEPS4135  Trifolium variegatum var. variegatum Joseph P. Tracy 1929-5-5 8570 Humboldt Miranda Northern Coast Ranges, South Fork Eel River 121 Comment
  UC1223529  Trifolium variegatum var. variegatum Joseph P. Tracy 1937-6-20 15336 Humboldt 10 mi upstream mouth of Bear River 152 Comment
  UC495677  Trifolium variegatum var. variegatum Joseph P. Tracy 1929-5-5 8573 Humboldt along South Fork of Eel River (Miranda); Northern Coast Ranges 121 Comment
  UC165551  Trifolium willdenovii Mrs. M. H. Manning 1901-4 70 Humboldt near Hupa Comment
  HSC15180  Trifolium willdenovii Eugene Andreuccetti 1964-5-2 46 Humboldt Grounds of Tish-Tang Ranger Station Comment
  UC495688  Trifolium willdenovii Joseph P. Tracy 1932-5-10 9944 Humboldt hillsideds between Petrolia and ocean Northern Coast Ranges 152 Comment
  BLMAR259  Trifolium wormskioldii Jennifer Anthony-Wheeler 1998-4-22 259 Humboldt King range, strawberry rock grazing allotment 280 Comment
  RSA168852  Trifolium wormskioldii Joseph P. Tracy 1950-6-8 18714 Humboldt Near the Sand Cut. Wild Cat Road, 2 miles south of Ferndale. Comment
  UC1197036  Trifolium wormskioldii Joseph P. Tracy 1917-7-8 4827 Humboldt near Newell's Camp (Old Kneeland Prairie Rd on beaten path); Northern Coast Ranges 457 Comment
  UC1222703  Trifolium wormskioldii Joseph P. Tracy 1938-7-12 16056 Humboldt near Field's Landing (w end of Table Bluff) 548 Comment
  HSC37965  Triglochin concinna Peter Sorensen 1976-6-16 Humboldt Woodley Island, Humboldt Bay Comment
  UC1103521  Triglochin maritima Joseph P. Tracy 1910-6-5 3146 Humboldt near Samoa (region about Humboldt Bay); Northern Coast Region, region about Humboldt Bay 0 Comment
  HSC75735  Trillium albidum Bill Copeland 1980-6-26 296 Humboldt Near Murphy Meadow 914 Comment
  HSC97468  Trillium albidum Cara Witte 2007-5-8 4 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  CAS-BOT-BC520054  Trillium albidum Doris K. Kildale 1930-5-11 9542 Humboldt The Bald Hills Comment
  RSA168944  Trillium albidum Joseph P. Tracy 1950-5-7 18646 Humboldt Head of South Yager. Comment
  CAS-BOT-BC519078  Trillium angustipetalum Doris K. Kildale 1926-3-27 1659 Humboldt Wiregrass Prairie in Bald Hills Comment
  HSC15681  Trillium kurabayashii R. Spellenberg, D. Sutherland, A. Sylvester 1966-4-28 1383 Humboldt S side of Prairie Creek State Park Comment
  CSUSB390  Trillium ovatum Keith Thompson 1970-12-27 Humboldt Arcata, California. 45 Comment
  HSC44286  Trillium ovatum D. L. Goforth 1977-4-23 2 Humboldt 2.5 mi.. S of Shelter Cove Rd. S Fork of Bear Creek at Wailaki Campground 561 Comment
  CAS-BOT-BC133392  Trillium ovatum R. N. Raynor 1934-4-1 s.n. Humboldt Above Fort Seward Comment
  HSC15694  Trillium ovatum V. G. Vieira 1963-3-10 37 Humboldt Essex Pond Comment
  RSA244948  Trillium ovatum D. V. Sanford 1963-3-23 11 Humboldt Redwood forest behind Humboldt State College campus. Comment
  SD112794  Trillium ovatum Darley F. Howe 1963-5-26 3557 Humboldt 3.7 miles east of Orick, on Bald Hill Road. 487 Comment
  SEINET3992212  Trillium sessile Unknown 1928-4-29 8418 Humboldt Prairie Creek 152 Comment
  UC198870  Triodanis biflora Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  SEINET10458940  Triodanis biflora Tracy TRACY 2198 Humboldt EUREKA Comment
  JEPS2674 Image available Triphysaria eriantha subsp. eriantha Jos. P. Tracy 1901-5-18 2035 Humboldt Sandhills Humboldt Bay, Eureka; Eureka, Humboldt Bay Comment
Read comments
Oct 16 2007
  UC1198036  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1911-5-30 3207 Humboldt sandy fields at Bucksport (at Eureka); Northern Coast Region 0 Comment
  UC198033  Triphysaria eriantha subsp. eriantha H. E. Parks and Joseph P. Tracy 1927-4-24 7946 Humboldt Bucksport 6 Comment
  JEPS13343  Triphysaria versicolor subsp. versicolor W. K. Parks July, 1932 1427 Humboldt Trinidad Comment
  UCD93892  Trisetum canescens Joseph P. Tracy 1901-5-30 1109 Humboldt At Eureka. 0 Comment
  UC1541533  Trisetum cernuum Harold E. Parks 1934-5-16 4935 Humboldt Carlotta; near station 15 Comment
  UC922029  Trisetum cernuum Joseph P. Tracy 1940-8-11 16695 Humboldt Streambank at Raccoon Creek; Trinity River Valley, near Willow Creek 152 Comment
  UC1103147  Trisetum flavescens Joseph P. Tracy 1917-7-1 4830 Humboldt Eureka; Northern Coast Ranges 0 Comment
  UC187230  Trisetum flavescens J. P. Tracy 1911-7-12 3527 Humboldt Blue Lake 60 Comment
  UC902040  Triteleia bridgesii Joseph P. Tracy 1949-6 18345 Humboldt Mud Springs Trinity Summit 1341 Comment
  UC1197713  Triteleia hyacinthina Joseph P. Tracy 1925-5-30 7047 Humboldt McClellan Mountain Northern Coast Ranges, McClellan Mountain 822 Comment
  SEINET181190  Triteleia laxa Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-8 15085 Humboldt 5 miles north of Garberville Comment
  IRVC27661  Triteleia peduncularis J. P. Tracy 1898-7-5 266 Humboldt Immediate vicinity of Eureka; near Ryan's Slough Hill. 0 Comment
  CAS-BOT-BC85852  Tsuga heterophylla P. C. Everett; E. K. Balls 1953-10-13 18654 Humboldt 11.3 mi. to 16.6 mi. e. of jct. with Hwy 101 on Hwy 299 from Blue Lake 640 Comment
  HSC39045  Tsuga heterophylla Linda M. Barker 1976-6-14 1589 Humboldt 3 mi. W of Arcata 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
  CAS-BOT-BC91107  Umbellularia californica Doris K. Kildale 1926-1-24 1488 Humboldt Kneeland Prairie. 762 Comment
  RSA168809  Umbellularia californica Joseph P. Tracy 1950-12-10 18600 Humboldt Vicinity of Carlotta. 30 Comment
  UC1175130  Umbellularia californica P. C. Everett and E. K. Balls 1959-10-25 23958 Humboldt 12.4 mi w from Willow Creek (along U.S. Hwy 299 to Arcata) 655 Comment
  SEINET12104679  Umbellularia californica E. A. York 1990-1-10 2667 Humboldt USGS Redwood Field Station, Arcata Comment
  UC582438  Uropappus lindleyi Joseph P. Tracy 1927-5-14 8008 Humboldt near South Fork; Trinity River Valley 182 Comment
  UC1222619  Urtica dioica subsp. holosericea Joseph P. Tracy 1950-9-22 19369 Humboldt 8 mi below Orleans (near Slate Creek, Klamath River); Klamath River 121 Comment
  HSC49505  Utricularia macrorhiza R. York 1979-4-13 225 Humboldt Behind grammar school in Fieldbrook. Comment
  UC1197772  Vaccinium cespitosum J. P. Tracy 1901-4-7 1007 Humboldt immediate vicinity Eureka; , Rick's Prairie 0 Comment
  CAS-BOT-BC199319  Vaccinium ovatum L. B. Kildale 1930-9-9 10408 Humboldt Bald Mountain 914 Comment
  HSC31471  Vaccinium ovatum Steve Selva, Roger Jensen 1974-8-28 96 Humboldt Behind Humboldt State University, Arcata. Comment
  HSC7908  Vaccinium ovatum J. Pursell 1964-10-17 10178 Humboldt Road to Box Camp in Hoopa Valley 762 Comment
  POM118410  Vaccinium ovatum Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UCD118079  Vaccinium ovatum Joseph M. DiTomaso 1976-3-28 349 Humboldt Arcata, beneath Redwood tree. Comment
  UCR275111  Vaccinium ovatum Charity A. Hartshorn 2016-5-14 31 Humboldt Arcata Community Forest 244 Comment
  CAS-BOT-BC199416  Vaccinium parvifolium C. Hart Merriam 1921-7-7 s.n. Humboldt Van Duzen River Bridge Comment
  HSC7923  Vaccinium parvifolium Francis Winter 1960-4-24 Humboldt 1 mi. E of Pine Ridge Summit 854 Comment
  UCR32119  Vaccinium parvifolium David J. Keil 1983-7-2 17329 Humboldt Horse Mountain Summit SW of Willow Creek 1509 Comment
  CAS-BOT-BC199418  Vaccinium parvifolium H. E. McMinn 1922-6-23 263 Humboldt Near Van Dusen [Duzen] River Comment
  CAS-BOT-BC5074  Valeriana sitchensis subsp. scouleri Alice Eastwood; John Thomas Howell 1937-6-24 4868 Humboldt 5 miles E of Berry Summit Comment
  RSA114992  Valeriana sitchensis subsp. scouleri E. K. Balls, Lee W. Lenz 1955-5-15 20732 Humboldt 6.4 miles SW of Willow Creek along US Hwy 299 to Arcata. 457 Comment
  HSC48405  Valeriana sitchensis subsp. sitchensis Brad Klipfel 1973-6-10 108 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC76051  Vancouveria hexandra Mrs. H. E. Wilder 1933-5-20 s.n. Humboldt Carlotta. Comment
  HSC56438  Vancouveria hexandra Griswold, Butler 1979-7-12 7165 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1196345  Vancouveria hexandra Joseph P. Tracy 1937-7-24 15535 Humboldt Trinity Summit, head of Little Hors-Linto Creek Little Hors-Linto Creek; Trinity Summit, Little Hors-Linto Creek 1371 Comment
  UC1196347  Vancouveria hexandra Joseph P. Tracy Jul 16 1930-Jul 19 1930 8968 Humboldt in fir forest near McKay Camp South Fork Mountain; Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC76086  Vancouveria planipetala L. R. Abrams 1918-6-16 7189 Humboldt Willow Creek. Comment
  JEPS33028  Vancouveria planipetala W. L. Jepson 1934-5-7 16695 Humboldt Bull Creek Comment
  UC1126306  Vancouveria planipetala A. E. Wieslander 1931-5-19 207 Humboldt near Orleans; Klamath Forest, Hoopa Quadrangle Comment
  CAS-BOT-BC528853  Veratrum californicum Doris K. Kildale 1925-8-16 1179 Humboldt Trinity Summit Elk Horn Prairie, wet meadow 1524 Comment
  HSC70501  Veratrum insolitum Gail Newton 1980-7-20 1617 Humboldt Near Bell Swamps 1426 Comment
  HSC98057  Veratrum insolitum Cara Witte 2007-7-19 544 Humboldt Along National Forest 1. Approximately 1 mile south of turnoff to Cold Spring. 1423 Comment
  HSC39719  Verbena lasiostachys D. E. Anderson, J. P. Smith 1971-6-28 - 1258 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  UC1239563  Verbena lasiostachys var. lasiostachys Joseph P. Tracy 1911-7-9 3479 Humboldt near mouth of Willow Creek; Trinity River Valley 152 Comment
  UC176952  Veronica arvensis Joseph P. Tracy 1913-6-17 4154 Humboldt on nw slope of Buck Mountain (Burr Valley, at Sheep Camp); Northern Coast Ranges, , Burr Valley 1066 Comment
  HSC83999  Veronica arvensis L. P. Janeway 1983-5-1 254 Humboldt SW corner of old baseball field (S of new Science Building) 30 Comment
  HSC78977  Veronica peregrina subsp. xalapensis L. P. Janeway, K. Berg, Rudy Becking 1984-4-11 720 Humboldt N Spit of Humboldt Bay, BLM lands ('Coast Guard Reservation') 3 Comment
  UC501613  Veronica scutellata Frank W. Peirson 1923-7-11 3838 Humboldt 7 mi n of Arcata Comment
  JEPS4464  Veronica scutellata W. L. Jepson 1902-6-24 1921 Humboldt between Eureka and Arcata (Expedition from Ukiah to the Hupa Indian Reservation) Comment
  UC147901  Veronica serpyllifolia subsp. humifusa Joseph P. Tracy 1910-4-17 3115 Humboldt Valley of Elk River (region about Humboldt Bay); Northern Coast Region, Humboldt Bay, Elk River 0 Comment
  RSA249386  Veronica serpyllifolia var. humifusa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5584 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  HSC56929  Vicia americana var. americana G. L. Clifton, Butler 1979-7-26 9357 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UC1197477  Vicia americana var. americana Joseph P. Tracy 1933-5-20 12255 Humboldt near Petrolia (Mattole River); North Coast Region, Mattole River 15 Comment
  UC1197464  Vicia americana var. americana Joseph P. Tracy 1913-7-20 4372 Humboldt slopes between Three Creeks and top of Berry Mountain; Northern Coast Ranges 1066 Comment
  UC1197476  Vicia americana var. americana Joseph P. Tracy 1936-6-21 14996 Humboldt near Booth's Run (Iaqua); Iaqua 609 Comment
  HSC81921  Vicia gigantea Thomas W. Nelson, Jane P. Nelson 1979-7-3 4966 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  PASA270  Vicia sativa Frank W. Peirson 1923-7-11 Humboldt 7 miles north of Arcata Comment
  RSA91237  Vicia sativa F. W. Peirson 1923-7-11 3625 Humboldt 7 miles N of Arcata. Comment
  UCD108854  Vicia sativa subsp. nigra Linda M. Barker 1976-5-13 1481 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC23675  Vicia sativa subsp. nigra Tim Baroni 1971-6-25 49 Humboldt Comment
  RSA8438  Vicia villosa I. L. Wiggins 1932-7-7 5880 Humboldt Near Samoa, on the landward side of the sand dunes. Comment
  UC1761428  Viola Milo S. Baker 1923-7-30 Humboldt 1/2 mi W of Fredericksons House (near Hwy from Eureka to Bridgeville on Van Dusen River) Comment
  HSC21771  Viola adunca J. J. Wagoner 1965-4-3 10 Humboldt 16 mi. N of Trinidad, W of Hwy. 101 in Dry Lagoon State Beach Park 6 Comment
  RSA12423  Viola adunca Carl B. Wolf 1934-7-2 5871 Humboldt At edge of small lake at Snow Camp. (Mts. east of Korbel). 1372 Comment
  UC1761637  Viola adunca Mrs. H. C. Cantelow 1936-5-17 Humboldt 5 1/2 mi E of Orick (on road to Yreka) Comment
  HSC96078  Viola cuneata J. Breton, A. Livingston, Jennifer Lumbert 2005-6-24 2 Humboldt Horse Mtn. radio tower, 1/2 mile from intersection of three F.S. roads, 4.5 miles from Hwy. 299 on Titlow Hill Rd. 1445 Comment
  HSC21799  Viola glabella D. E. Anderson 1965-5-15 3688 Humboldt About 7 mi. N of Hoopa on Bloody Camp Prairie Rd. Comment
  UC668250  Viola glabella Joseph P. Tracy 1933-7-16 12775 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC902117  Viola glabella Joseph P. Tracy 1948-8-15 18142 Humboldt on Ridge 2 mi e of Grove's Prairie; Trinity Summit 1524 Comment
  RSA218475  Viola glabella N. H. Russell 1960-6-9 60 -24 Humboldt Near Weott and Williams Grove, by Hwy 101. Comment
  UC1103563  Viola glabella Joseph P. Tracy 1940-8-25 16710 Humboldt near High Prairie; Bald Mountain 1036 Comment
  UC1198441  Viola hallii Joseph P. Tracy 1933-7-11 12664 Humboldt Horse Mountain 1432 Comment
  UC1198464  Viola lobata subsp. integrifolia Joseph P. Tracy 1935-7-14 14068 Humboldt Back of Clear Lake; North Coast Ranges, Grouse Mountain. 1524 Comment
  HSC99353  Viola macloskeyi K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-21 2 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1103555  Viola macloskeyi Joseph P. Tracy 1939-7-9 16345 Humboldt Snow Camp 1402 Comment
  UC502950  Viola macloskeyi Joseph P. Tracy Jul 16 1930-Jul 19 1930 8974 Humboldt South Fork Mountain at McKay Camp McKay Camp; Northern Coast Ranges, South Fork Mountain, McKay Camp 1676 Comment
  HSC21822  Viola ocellata D. E. Anderson 1965-5-1 3557 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  UC35284  Viola ocellata Chesnut and Drew 1888-7-21 Humboldt South Fork Mountain Comment
  UC502953  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1930-6-8 8730 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  JEPS50235  Viola sempervirens Lincoln Constance 1934-5-31 760 Humboldt Bull Creek Flat along Bull Creek (from w boundary of Park to Grasshopper Peak (Squaw Creek)road, n side of creek); Bull Creek Region, South Fork Eel River Comment
  UC66213  Viola sempervirens Joseph Burtt Davy and Walter C. Blasdale 1899-5 5511 Humboldt Camp Grant to 2 mi from Pepperwood North; North Coast Ranges, Camp Grant Comment
  JEPS40249  Vitis californica W. L. Jepson 1921-9-11 9463 Humboldt DeVoy Flat South Fork Eel River (on river bank) Comment
  UC165807  Vitis californica Joseph P. Tracy 1911-7-5 3333 Humboldt Willow Creek Northern Coast Ranges ((tributary of Trinity River), near its mouth) 152 Comment
  UC169887  Vitis californica P. E. Goddard 1901-1 13 Humboldt Hupa Valley Comment
  HSC69872  Vulpia bromoides Thomas W. Nelson 1978-5-29 4094 Humboldt On McKeown Ranch N of Dinsmore. 762 Comment
  UC34061  Vulpia bromoides J. P. Tracy 1900-6-23 858 Humboldt immediate vicinity Eureka 0 Comment
  SEINET3132612  Vulpia microstachys var. microstachys D. E. Anderson, JO Sawyer, JP Smith Jr. 1970-5-10 5056 Humboldt Along road from Redwood Creek to Hoopa, ca. 1-3 mi. W of Hoopa Comment
  UC1103716  Vulpia microstachys var. microstachys Joseph P. Tracy 1912-7-31 3917 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  UC277197  Vulpia microstachys var. pauciflora Joseph P. Tracy 1921-6-12 5818 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  CAS-BOT-BC184733  Vulpia myuros subsp. megalura Henry M. Pollard 1948-7-19 s.n. Humboldt Orleans to Van Fleet ranch Comment
  UC196967  Vulpia myuros var. hirsuta Joseph P. Tracy 1915-5-23 4640 Humboldt Eureka; Northern Coast Region 0 Comment
  RSA10077  Vulpia octoflora Joseph P. Tracy 1929-7-4 8618 Humboldt French Camp Ridge 1067 Comment
  CAS-BOT-BC128813  Whipplea modesta L. R. Abrams 1922-6-25 8222 Humboldt 6 mi. north of Garberville Comment
  HSC20442  Whipplea modesta Yarick 1960-8-5 Humboldt M&M, 7 mi., Krueger Creek Comment
  HSC74461  Woodwardia fimbriata M. A. Baker 1980-5-18 1357 Humboldt Near Black Mtn. 792 Comment
  HSC13047  Woodwardia fimbriata Jana Kattenhorn 1970-10-24 122 Humboldt H.S.C. Campus, Arcata, N side of building 53 Comment
  JEPS301  Woodwardia fimbriata W. L. Jepson 1932-7-30 16453 Humboldt bluff at Bull Creek Comment
  CAS-BOT-BC382920  Wyethia angustifolia Doris K. Kildale 1928-6-24 5271 Humboldt Horse Mountain 853 Comment
  HSC58331  Wyethia angustifolia Overton, Butler 1979-8-2 12632 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  JEPS32063  Wyethia angustifolia Lincoln Constance 1934-5-29 725 Humboldt Upper Look Prairie (South Fork Eel River, Bull Creek Region); South Fork Eel River, Upper Look Prairie, Bull Creek Region 365 Comment
  SBBG60857  Wyethia angustifolia R. Hartwell 1938-8-5 Humboldt Mattole Rd, on the "Hump," near Capetown, above the sea Comment
  UC169292  Wyethia angustifolia Joseph P. Tracy 1912-6-9 3657 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC165897  Wyethia angustifolia Joseph P. Tracy 1911-7-6 3352 Humboldt along road between three creeks and mouth Willow Creek; Northern Coast Ranges, Willow Creek 762 Comment
  JEPS32115  Wyethia longicaulis Jos. P. Tracy 1923-6-21 4254 Humboldt near summit of ridge between Van Duzen and Mad Rivers (Dinsmore Ranch) 1066 Comment
  HSC98549  Xerophyllum tenax Cara Witte 2008-6-11 711 Humboldt National Forest Road 5N10. 2 miles south of intersection with Forest Service Road 5N41. 1286 Comment
  RSA183622  Xerophyllum tenax D. E. Anderson 1965-4-29 3555 Humboldt Road from Fickle Hill to Maple Creek; Butler Valley area Comment
  UC1198220  Xerophyllum tenax Joseph P. Tracy 1937-8-12 15630 Humboldt Snow Camp 1402 Comment
  UC906657  Yabea microcarpa Joseph P. Tracy 1946-1-15 17519 Humboldt Willow Creek; Trinity River Valley 152 Comment
  HSC15743  Zigadenus fremontii Elrid H. Spinas 1948-6-16 57 Humboldt Horse Mtn. Comment
  HSC56958  Zigadenus micranthus Overton, Butler 1979-7-23 9472 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  UC398875  Zostera marina H. E. Parks 1923-11-12 Humboldt Eureka Comment
  RSA684208  Zostera marina R. Setzer 1972-7-29 6992 Humboldt Buhne Point; Humboldt Bay near Eureka. 0 Comment



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