Search Results — 2000 specimen records retrieved (1349 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)

Results for search: County=HUMBOLDT; Source=All;   

Mapping Options:

BerkeleyMapper with county and bioregion layers
BerkeleyMapper without layers.
KML export
(Note: only records with coordinates are mappable)

Download Options:
Select all records · Select records with coordinates

Include annotations and voucher information

PLEASE NOTE: Due to changes in newer versions of Excel, directly copying text from the above selected results does not produce a usable table.
    Follow these steps:
      1. The contents of the selected results window must be copied into a text editor like TextEdit for Mac or WordPad for Windows
      2. The selected results must be saved as a new text document.
      3. This new text document can now be copied into Excel or imported as a tab delimited text file.

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

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

Click on column header to sort data (* sorts by family); click in leftmost checkbox to select record. CCH Help Page.
Turn on yellow flags to show possible range discrepancies. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC55072  Abies concolor G. L. Clifton, Griswold 1979-7-31 11656 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC72799  Abies concolor Gail Newton 1980-6-17 213 Humboldt Near Onion Mtn. 1341 Comment
  CAS-BOT-BC78025  Abies grandis Doris K. Kildale 1928-6-2 5303 Humboldt Bucksport - near Eureka Comment
  UC55645  Abies magnifica var. shastensis Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 58121 Humboldt Trinity summit North Coast Ranges, Trinity Summit (ne Humboldt and nw Trini Comment
  RSA168959  Abies procera G. L. Anderson 1962-8-21 5 Humboldt Six Rivers National Forest; Horse Trail Ridge, SW slope. 1829 Comment
  UC1267074  Abies procera G. L. Anderson 1962-8-21 5 Humboldt Horse Trail Ridge Six Rivers National Forest (sw slope) 1828 Comment
Read comments
May 21 2011
  UCD109784  Abronia latifolia Roman Gankin 1965-8-6 558 Humboldt 1.3 miles south of Samoa, Samoa Peninsula. Comment
  RSA0025084  Abronia latifolia Robert F. Thorne 1957-9-3 19012 Humboldt Little River Beach, few miles S of Trinidad. Comment
  UC165817  Acer circinatum Joseph P. Tracy 1911-6-4 3223 Humboldt 5 mi from the coast (along Little River); Northern Coast Region, Little River 121 Comment
  UC1199019  Acer macrophyllum Joseph P. Tracy 1933-4-2 10955 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC73585  Achillea millefolium Gail Newton 1980-7-14 1495 Humboldt Near Last Chance Ridge. 1219 Comment
  UC203890  Achlys californica Joseph P. Tracy 1918-5-28 4951 Humboldt High Prairie on Bald Mt. Northern Coast Ranges, Bald Mt. 1066 Comment
  UCD50519  Achnatherum lemmonii Joseph P. Tracy 1951-6-26 19563 Humboldt Halfway between Snow Camp and Twin Lakes (at Preston's old gate near road). Humboldt County. Comment
  UCD51130  Achnatherum occidentale subsp. californicum Don Hagar 1957-8-6 s.n. Humboldt Red Cap Prairie, west of Trinity Summit. 1828 Comment
  UCSB16556  Acmispon americanus Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  BLMAR183  Acmispon brachycarpus Donald Hazlett 1994-6-7 183 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC71611  Acmispon micranthus J. P. Smith 1973-5-26 6837 Humboldt Scotia Bluffs along the Eel River near Rio Dell. 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
  HSC56210  Aconitum columbianum subsp. viviparum G. L. Clifton, Griswold 1979-8-2 12215 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  SBBG7504  Adenocaulon bicolor H. and M. Dearing 1939-6-20 3687 Humboldt W of Willow Crk Comment
  SEINET10473553  Adenocaulon bicolor Mary Merello 1993-6-19 Merello 660 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  UC164803  Adenocaulon bicolor Joseph P. Tracy 1909-7-31 3042 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prarie 762 Comment
  HSC953  Adiantum aleuticum Gene S. Van Horn 1962-5-20 24 Humboldt 0.5 mi. S of large quarry, 200 yards S of Jacoby Creek 46 Comment
  CAS-BOT-BC65727  Adiantum pedatum Kenneth Clark 1980-6-14 691 Humboldt Point Delgada quad, north fork Dead Man's Gulch 83 Comment
  CAS-BOT-BC202611  Aesculus californica Marcus E. Jones 1931-7-12 28938 Humboldt Alton Comment
  RSA183633  Ageratina occidentalis D. E. Anderson 1965-9-5 4094 Humboldt Along Mad River, ca. 3 miles south of Blue Lake. Comment
  POM289975  Agoseris apargioides var. maritima Lyman Benson 1929-7-15 s.n. Humboldt Clam Beach, Trinidad Comment
  HSC99561  Agoseris grandiflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 226 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
  UC582754  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1930-7-6 8842 Humboldt Kneeland Prairie Kneeland Prairie 762 Comment
  UC1222944  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1945-7-15 17513 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  UC582756  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1935-7-25 14234 Humboldt McKay Prairie Trinity Summit, McKay Prairie 1584 Comment
  UC1199481  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1918-7-5 5024 Humboldt common in grassy places White Thorn Valley; Northern Coast Ranges 304 Comment
  UC582741  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1933-5-30 12417 Humboldt (near Garberville) Redway 152 Comment
  CAS-BOT-BC13374  Agoseris retrorsa Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. 1371 Comment
  HSC40827  Agoseris retrorsa Thomas W. Nelson, James Nelson 1976-7-26 3042 Humboldt Along ridge NE of Mt. Lassic (Signal Peak) 1707 Comment
  RSA249712  Agrostis capillaris R. F. Thorne, P. Everett 1965-8-8 35247 Humboldt N edge of Eureka, E of Hwy in weedy land-fill 5 Comment
  UC1152034  Agrostis capillaris Joseph P. Tracy 1951-6-26 19547 Humboldt Snow Camp Meadow Comment
  RSA44465  Agrostis densiflora Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River at Orleans. Comment
  UC191415  Agrostis exarata Joseph P. Tracy 1902-7-4 1757 Humboldt Eureka Northern Coast Region 0 Comment
  UC1145077  Agrostis hallii Joseph P. Tracy 1938-7-4 15982 Humboldt valley South Yager Creek; Valley of South Yager Creek 762 Comment
  UCD52675  Agrostis hallii P. B. Kennedy 1923-6-14 305 Humboldt Stoddard store, near Garberville. Comment
  UC1145152  Agrostis microphylla Joseph P. Tracy 1938-7-5 16006 Humboldt 5 mi e town (Carlotta, open flat by old Strong's District School House); Carlotta, old Strong's District School House 60 Comment
  CAS-BOT-BC139132  Agrostis oregonensis Joseph P. Tracy 1934-7-18 13452 Humboldt North Coast Ranges. Grouse Mountain. 1524 Comment
  HSC102238  Agrostis oregonensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1164 Humboldt Patterson Meadows 1555 Comment
  UC1103396  Agrostis oregonensis Joseph P. Tracy 1934-8-29 13637 Humboldt openings in forest near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  POM207333  Agrostis pallens Davy Blasdale 1899-05 5723 Humboldt Supply Creek Comment
  SD51396  Agrostis pallens Darley F. Howe 1961-8-1 Humboldt 6 miles north of Trinidad on #101. Comment
  SACT000139  Agrostis palustris S. Smith, Malcolm Nobs 1949-8-3 Humboldt Borders of irrigation ditch Comment
  RSA10067  Agrostis stolonifera Joseph P. Tracy 1924-8-17 6819 Humboldt Trinidad 61 Comment
  RSA15570  Agrostis stolonifera C. B. Wolf 1927-8-28 1189 Humboldt Eureka Bay on road to Arcata Comment
  UC552778  Agrostis thurberiana Joseph P. Tracy 1934-7-18 13453 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC1145073  Agrostis viridis Joseph P. Tracy 1943-8-29 17445 Humboldt Eureka 30 Comment
  HSC65116  Aira caryophyllea J. P. Smith 1973-5-26 6877 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC70764  Aira caryophyllea R. York 1980-5-17 518 Humboldt Near Le Perron Peak 792 Comment
  HSC8855  Aira caryophyllea N. R. Waite 1965-5-19 41 Humboldt W edge of Humboldt State University campus. Comment
  UCD55715  Aira caryophyllea A. A. Beetle; G. L. Stebbins Jr. 1942-6-1 3620 Humboldt 2 miles north of Orleans, wooded banks of Klemath River. Comment
  SEINET10839747  Aira caryophyllea Harold E. Parks, Susan T. Parks Parks 5850 Humboldt Spruce Cove, Trinidad. Comment
  SEINET11683267  Aira caryophyllea K. S. Erdman 1970-1 4787 Humboldt Doleson hill Prairie, Bald Hills Rd, SE of Orick 853 Comment
  CAS-BOT-BC459419  Allium acuminatum Harley P. Chandler 1901-6-1 1349 Humboldt Hupa Indian Reservation, North Coast Ranges 152 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
  RSA254786  Allium bolanderi var. bolanderi Thomas W. Nelson, James Nelson 1973-5-28 936 Humboldt McKeown Ranch north of Dinsmore. Comment
  HSC103075  Allium campanulatum Sydney Carothers 2014-6-11 15 Humboldt Six Rivers Nat'l Forest, Lassics Botanical Area, upper north face of Mt. Lassic 1777 Comment
  HSC47990  Allium falcifolium B. Klipfel 1974-7-11 699 Humboldt Horse Mtn. Comment
  HSC77956  Allium falcifolium D. K. Imper 1982-7-13 1489 Humboldt Near Chaparral Mtn. 1386 Comment
  UC666924  Allium unifolium Joseph P. Tracy 1928-5-20 8437 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  CAS-BOT-BC476626  Allium unifolium A. M. Vollmer; L. Beane 1951-6-11 138 Humboldt Horse Mountain-Shelter Cove Road Comment
  CAS-BOT-BC476630  Allium unifolium Katherine Esau 1934-5-7 s.n. Humboldt Above Fort Seward 609 Comment
  RSA75603  Allium unifolium Albert M. Vollmer, L. Beane 1951-6-11 138 Humboldt Horse Mountain-Shelter Cove Road. Comment
  HSC99505  Allium validum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 165 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
  RSA46860  Alnus rhombifolia Doris K. Kildale 1926-8-8 2457 a Humboldt South Fork of Eel River between mouth of Bull Creek and Dyerville bridge. 91 Comment
  CAS-BOT-BC169530  Alnus rubra Doris K. Kildale 1926-3-20 1540 Humboldt Big Lagoon Comment
  CAS-BOT-BC169547  Alnus rubra Joseph P. Tracy 1930-11-16 9255 Humboldt Alton, along Van Duzen River 30 Comment
  CAS-BOT-BC169548  Alnus rubra H. E. Parks; S. T. Parks 1938-4-1 24126 Humboldt Spruce Cove, Trinidad 60 Comment
  RSA2929  Alnus rubra C. B. Wolf 1931-8-28 2366 Humboldt Redwood Highway 4.5 miles no. of Fortuna on road to Eureka. 15 Comment
  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
  UCD55913  Alopecurus Joseph P. Tracy 1942-6-2 17096 Humboldt Alton. 30 Comment
  UC526745  Alopecurus geniculatus Joseph P. Tracy 1926-6-12 7589 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  SEINET201057  Alopecurus saccatus J. P. Tracy 1942-6-2 17096 Humboldt Alton 30 Comment
  SEINET10511197  Alopecurus saccatus Joseph P. Tracy 1912-7-21 Tracy 3780 Humboldt Alton. Along ditch. 30 Comment
  CAS-BOT-BC13706  Ambrosia chamissonis H. E. Parks 1941-9-1 24214 Humboldt At mouth of Little River Comment
  RSA245279  Ambrosia chamissonis J. D. Ackerman 1973-8-23 118 Humboldt Mad river beach co. park Comment
  HSC24391  Amelanchier pallida J. O. Sawyer 1970-6-24 2218 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC34951  Amsinckia intermedia Thomas W. Nelson 1975-5-24 1860 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1239643  Amsinckia intermedia Joseph P. Tracy 1936-6-9 14897 Humboldt hills between the coast and Petrolia 213 Comment
  CAS-BOT-BC45140  Anaphalis margaritacea M. S. Taylor 1975-4-12 466 Humboldt Ca. 200 yards W of Hwy 101, by RR tracks, Orick Comment
  POM288758  Anaphalis margaritacea Lyman Benson 1929-7-12 1747 Humboldt Weott Ranger Station; S Fork Eel River. Comment
  HSC55682  Anemone deltoidea Overton, Butler 1979-7-26 9935 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek. 1326 Comment
  HSC56079  Anemone deltoidea G. L. Clifton, Griswold 1979-7-31 11761 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  JEPS79808  Anemone deltoidea Joseph P. Tracy Jul 16 1930-Jul 19 1930 8964 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC391772  Anemone deltoidea M. Louise Hutchinson 1913-5-1 s.n. Humboldt Near Eureka Comment
  SEINET12087980  Anemone deltoidea Unknown 1936-1 13352 Humboldt near Scotia Comment
  UC1196188  Anemone deltoidea H. E. Parks and Joseph P. Tracy 1931-5-31 9540 Humboldt Lawrence Creek; North Coast Ranges; Lawrence Creek 457 Comment
  CAS-BOT-BC391925  Anemone lyallii Doris Kildale 1931-5-10 10576 Humboldt Snow Camp Comment
  HSC64348  Anemone oregana var. oregana J. P. Smith, J. O. Sawyer 1973-5-12 6694 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC56311  Angelica arguta Overton, Butler 1979-8-2 12641 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  JEPS12244  Angelica hendersonii Joseph P. Tracy 1938-8-28 16133 Humboldt Trinidad 3 Comment
  JEPS14108  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  UCD127229  Angelica hendersonii R. Tofsrud 1948-7-26 s.n. Humboldt along Highway 101 near Big Lagoon. Comment
  JEPS14245  Angelica lucida Joseph P. Tracy 1938-7-15 16078 Humboldt Mouth of Eel River Eel River 6 Comment
  UC184954  Angelica lucida John Matthiesen Humboldt Loleta Comment
  UC642239  Angelica tomentosa Joseph P. Tracy 1938-8-14 16107 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  UCD127180  Angelica tomentosa Joseph DiTomaso 1980-8-15 1864 Humboldt 5 miles west of Willow Creek at 34.4 mile road mark on Highway 299. Comment
  HSC5981  Anisocarpus madioides Frances Oldridge 1945-1 Humboldt Kneeland Comment
  HSC81929  Anisocarpus madioides Thomas W. Nelson, Jane P. Nelson 1979-7-3 4950 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  UC494177  Anisocarpus madioides Parks and Tracy 1930-5-25 864 Humboldt Laribee Valley Comment
  CAS-BOT-BC271490  Anisocarpus madioides Doris K. Kildale 1927-4-30 1912 Humboldt Fruitland Hill, Ham's Road Comment
  HSC58749  Antennaria argentea Overton, Butler 1979-7-24 9595 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC47954  Antennaria luzuloides Brad Klipfel 1974-7-23 448 Humboldt Horse Mountain Comment
  UC582649  Antennaria rosea Joseph P. Tracy 1935-7-24 14169 Humboldt Trinity Summit (near Ranger Station) Trinity Summit 1828 Comment
  RSA254784  Anthemis cotula Thomas W. Nelson 1973-8-19 1111 Humboldt McKeown Ranch north of Dinsmore Comment
  HSC102648  Anthoxanthum odoratum J. P. Smith 2009-5-31 12609 Humboldt Bald Hills Road. 791 Comment
  HSC8945  Anthoxanthum odoratum E. W. Styskel 1964-4-28 73 Humboldt End of Davis Sreet, at edge of Eel River in Rio Dell Comment
  UC1152030  Anthoxanthum odoratum Joseph P. Tracy 1951-6-26 19548 Humboldt Snow Camp Meadow Comment
  UC1197334  Anthriscus caucalis Mrs. C. M. Wilder 1933-6-7 Humboldt Carlotta; near Beckwith Mill 60 Comment
  HSC37193  Anthriscus caucalis Barbara Kelly 1976-5-8 250 Humboldt Westhaven Stables, 1 mi from 101 on Westhaven Dr. Comment
  HSC57887  Apocynum androsaemifolium Overton, Butler 1979-7-31 11438 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC58036  Apocynum androsaemifolium G. L. Clifton 1979-7-31 11874 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC162631  Aquilegia formosa Joseph P. Tracy 1911-7-6 3337 Humboldt between Three Creeks and mouth of Willow Creek Northern Coast Ranges Comment
  HSC56045  Aquilegia formosa var. truncata G. L. Clifton, Griswold 1979-7-31 11621 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC100612  Aquilegia truncata Carl C. Marshall Jun 1886 121 Humboldt Everywhere, Humboldt Bay. Comment
  HSC73407  Arabis breweri var. breweri B. Potter, L. Sieburth, Susan Ahrens 1981-4-25 648 Humboldt Horse Mtn., 3.6 mi. S of Hwy. 299 on road to Titlow Ski Area 915 Comment
  HSC58034  Arabis glabra G. L. Clifton 1979-7-31 11869 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC71084  Arabis glabra M. A. Baker 1980-5-23 1389 Humboldt Near Buck Mtn. 1524 Comment
  HSC99487  Arabis glabra var. glabra K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 146 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
  HSC70246  Arabis subpinnatifida M. A. Baker 1980-6-8 1912 Humboldt Near Buck Flat. 1554 Comment
  HSC44361  Aralia californica Brad Klipfel 1974-8-2 511 Humboldt Horse Mtn., draw above Horse Mtn. creek Comment
  OBI20498  Aralia californica Carl B. Wolf 1937-9-8 9302 Humboldt North Coast Range, Bull Crk-Petrolia Rd, 12 mi W of Redwood hwy 457 Comment
  CAS-BOT-BC128695  Arbutus menziesii Doris K. Kildale 1927-5-7 3109 Humboldt Elk Ridge near Eel Rock Comment
  HSC49044  Arbutus menziesii Patricia Shesgreen 1978-5-6 69 Humboldt Arthur W. Way Memorial Park campground. 100 yds. N of Mattole River. Comment
  HSC7599  Arbutus menziesii Francis Winter 1960-4-24 Humboldt 4 mi. E of Blue Lake, Hwy. 299 305 Comment
  RSA697566  Arbutus menziesii J. R. Bruff 1937-8-17 927 Humboldt Richardson Grove. Comment
  UC213507  Arbutus menziesii Frank A. Graham 1919-12-20 Humboldt w side of Trinity River near Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  POM367168  Arbutus menziesii N. R. Zabriskie, Walter Zabriskie, J. Zabriskie 1968-8-22 151 Humboldt East of Honeydew on road from Humboldt State Park to Cape Mendocino. 915 Comment
  UC582721  Arctostaphylos Joseph P. Tracy 1937-4-3 15247 Humboldt Willow Creek Trinity River Valley 152 Comment
  UCD51741  Arctostaphylos X media Joseph P. Tracy 1945-3-30 17504 Humboldt Local. 45 Comment
  CAS-BOT-BC23906  Arctostaphylos canescens subsp. sonomensis Joseph P. Tracy 1935-7-14 14064 Humboldt Horse Mountain 1432 Comment
  RSA15552  Arctostaphylos cinerea C. B. Wolf 1927-8-30 1240 Humboldt French's Ranch top of Wilder Ridge, between Honeydew and Ettersburg, near Upper Matole. Comment
  CAS-BOT-BC23762  Arctostaphylos columbiana H. E. Parks 1931-12-1 4950 Humboldt Hobson's, Trinidad 60 Comment
  CAS-BOT-BC23769  Arctostaphylos columbiana Joseph P. Tracy 1932-2-28 9772 Humboldt Around Humboldt Bay 60 Comment
  CAS-BOT-BC23786  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13134 Humboldt Vicinity of Trinidad 60 Comment
  CAS-BOT-BC23800  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13141 Humboldt Vicinity of Trinidad 60 Comment
  HSC7614  Arctostaphylos columbiana J. Pursell 1964-11-1 1116 Humboldt Hwy. 96, 8 mi. S of Orleans Comment
  RSA622693  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27670 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
  RSA622697  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27679 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  UC549500  Arctostaphylos columbiana J. E. Adams 1935-5-12 1046 Humboldt Patrick's Point Comment
  UC585913  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13141 Humboldt vicinity of Trinidad Northern Coast Region 60 Comment
  CAS-BOT-BC23738  Arctostaphylos columbiana C. Hart Merriam 1921-7-7 s.n. Humboldt Ridges west of Van Duzen River. Comment
  RSA152311  Arctostaphylos columbiana var. columbiana Joseph P. Tracy 1948-3-13 17955 Humboldt Table Bluff. 91 Comment
  HSC7631  Arctostaphylos glandulosa Doris K. Kildale 1927-1-30 2899 Humboldt Big Lagoon, flat on S side of Lagoon 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
  UCSB11320  Arctostaphylos glandulosa Zinke, P. 1950-10-9 Humboldt King Peak 1280 Comment
  UC1222639  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1950-6-15 18795 Humboldt 7 mi n Harris; Mail Ridge Comment
  UC585934  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1934-7-9 13330 Humboldt 5 mi s Harris (on road towards Bell Springs); North Coast Ranges 762 Comment
  JEPS38950  Arctostaphylos hookeri subsp. montana Joseph P. Tracy 1933-8-6 12958 Humboldt French Camp Ridge 1066 Comment
  RSA633021  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27801 Humboldt Highway 96, 15 km north of Willow Creek. 100 Comment
  CAS-BOT-BC24368  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1942-7-18 17285 Humboldt Garberville. 152 Comment
  CAS-BOT-BC24371  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1927-3-10 2993 Humboldt Dobbyns Creek. Comment
  CAS-BOT-BC38838  Arctostaphylos manzanita subsp. manzanita C. Hart Merriam 1920-9-14 s.n. Humboldt Mts. near Willow Creek (1st ridge west of Trinity River on Willow Creek Road) Comment
  UC1198679  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-7-11 15417 Humboldt vicinity of Garberville 121 Comment
  JEPS38954  Arctostaphylos nevadensis Joseph P. Tracy 1932-7-12 10474 Humboldt head of Brett Hole Trinity Summit 1828 Comment
  RSA134148  Arctostaphylos stanfordiana P. C. Everett, E. K. Balls 1959-10-24 23954 Humboldt 6.8 mi. SW from Siskiyou-Humboldt Co. Line, Somesbar to Orleans. 152 Comment
  CAS-BOT-BC27298  Arctostaphylos tracyi Joseph Prince Tracy 1923-2-18 6141 Humboldt Big Lagoon 6 Comment
  SEINET2028698 Image available Arctostaphylos tracyi H. E. Parks 1931-12-1 4950 Humboldt Hobson's Trinidad 200 Comment
  CAS-BOT-BC47209  Arctostaphylos uva-ursi Doris K. Kildale 1926-6-18 2395 Humboldt Gold Bluffs. Comment
  CAS-BOT-BC47213  Arctostaphylos uva-ursi Doris K Niles 1951-5-1 12 Humboldt Table Bluff Hill, Redwood Highway approximately 1 mi. n. of Loleta. Comment
  CHSC591  Arctostaphylos uva-ursi 1930-3-30 Humboldt Comment
  HSC33172  Arctostaphylos uva-ursi Thomas W. Nelson 1974-4-20 1181 Humboldt Elk Head, N of Trinidad Comment
  HSC95653  Arctostaphylos uva-ursi Andrea Pickart 2002-4-5 42 Humboldt Lanphere Dunes 40 Comment
  SBBG83935  Arctostaphylos uva-ursi R. Gankin, W. R. Hildreth 1967-10-24 1147 Humboldt 1.7 mi S of Samoa, on Humboldt Peninsula Comment
  HSC100936  Arenaria douglasii Miss Handy Jun 1886 338 Humboldt Dry hills, Maple Cr. Comment
  UC1198608  Armeria maritima subsp. californica Joseph P. Tracy 1905-4-30 2179 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach) Comment
  HSC33417  Arnica cernua Thomas W. Nelson 1974-5-30 1345 Humboldt Along Hoopa-Redwood Valley Rd. Comment
  HSC74699  Arnica discoidea Gail Newton 1981-7-23 2287 Humboldt Near Bug Creek Butte. 1350 Comment
  UC581754  Arnica discoidea Joseph P. Tracy 1935-7-23 14154 Humboldt Lower end of Brett Hole Trinity Summit 1584 Comment
  SEINET3098738  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt Trinity Summit. Fir woods near Corral Prairie 1520 Comment
  RSA46799  Arnica latifolia Doris K. Kildale 1926-4-25 1808 Humboldt Sugar Bowl Mt. near Hoopa Comment
  SEINET11837491  Arnica tomentella J. P. Tracey 1950-1 19273 Humboldt 2 mi E of town, on trail to Croghan Hole. Trinity Summit, near Box Camp 1524 Comment
  CAS-BOT-BC94772  Arrhenatherum elatius R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 832 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air miles N of Mattole Road, about 3 air miles W of Highway 101 243 Comment
  HSC8985  Arrhenatherum elatius True Hoyle 1967-7-24 29167 Humboldt Oscar Stapp Ranch near Showers Creek and Showers Pass 1006 Comment
  UC1103325  Arrhenatherum elatius Joseph P. Tracy 1927-9-25 8369 Humboldt Northern Coast Ranges, Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  CAS-BOT-BC146268  Arrhenatherum elatius var. elatius T. C. Fuller 1966-10-4 15237 Humboldt Northwest portion of Arcata. Comment
  HSC58169  Artemisia douglasiana G. L. Clifton, Griswold 1979-8-2 12240 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  UC1222998  Artemisia douglasiana Joseph P. Tracy 1947-8-24 17892 Humboldt Meadow at Box Camp; Trinity Summit 1463 Comment
  RSA424565B  Artemisia douglasiana Thomas S. Elias, Barbara A. Elias 1987-8-26 10628 Humboldt Fernbridge, 0.5 mile S of Route 101; along West bank of Eel River, about 0.5 mile N of bridge Comment
  POM264517  Artemisia pycnocephala H. E. Parks 1941-08 24186 Humboldt Little River State Park Comment
  CAS-BOT-BC97245  Artemisia suksdorfii W. R. Dudley 1899-1 s.n. Humboldt Trinidad Head Comment
  HSC93258  Arum palaestinum Gordon Leppig 1998-5-8 755 Humboldt Arcata Marsh and Wildlife Sanctuary, Butchers Slough, 50 m W of Interpretive Center Comment
  UC492191  Aruncus dioicus var. pubescens Joseph P. Tracy 1932-7-18 10807 Humboldt Head of Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  CAS-BOT-BC453341  Aruncus dioicus var. vulgaris Doris K. Kildale 1926-7-3 3663 Humboldt Willow Creek Flat under bridge Comment
  CAS-BOT-BC400529  Asarum caudatum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  POM118567  Asarum caudatum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  RSA183561  Asarum caudatum R. D. Zortman 1963-4-14 18 Humboldt 5 miles NE of Arcata, south of the Mad River, off Warren Ck. Rd. 91 Comment
  POM92404  Asarum caudatum L. R. Abrams 1922-6-25 s.n. Humboldt North of Mad River near Arcata Comment
  RSA114387  Asarum caudatum G. R. Campbell 1955-9-20 21468 Humboldt 4 mi. NE of Strongs Station (Van Duzen River) on Yager road Comment
  CHSC97953  Asarum hartwegii D. E. Anderson 1965-5-1 3566 Humboldt Along Hw. 96, 1.9 mi. no. of Willow Creek. Comment
  RSA417697  Aster occidentalis Thomas W. Nelson, Jane Nelson 1977-9-3 3726 Humboldt Along Creek draining, north from pond above Alder Spring. 1585 Comment
  JEPS22949  Astragalus rattanii var. rattanii Volney Rattan 1884-1 Humboldt Eel River Comment
  UC1222422  Astragalus rattanii var. rattanii Joseph P. Tracy 1962-7-24 19626 Humboldt Blue Slide on Van Duzen River (Van Duzen); , Blue Slide 91 Comment
Read comments
Jun 28 2015
  UC162811  Astragalus rattanii var. rattanii Joseph P. Tracy 1903-5-23 1903 Humboldt along sand bars of Eel River at Alder Point; Northern Coast Ranges, Eel River at Alder Point 91 Comment
  SEINET12160220  Astragalus umbraticus J. P. Tracy 1940-1 16706 Humboldt Bald Mt at 'Lake Prairie 1067 Comment
  HSC72620  Asyneuma prenanthoides J. P. Smith 1977-7-3 9236 Humboldt Six Rivers National Forest, on Rd. to Onion Lake, 4.7 mi. from junction with Hwy. 36 610 Comment
  BLMAR244  Asyneuma prenanthoides Jennifer Anthony-Wheeler 1997-7-24 244 Humboldt Lacks Creek, growing along base of rd cut Wside 1219 Comment
  HSC3825  Asyneuma prenanthoides J. Sandborg, F. Sandborg 1968-7-19 54 Humboldt Bluff Creek near Notice Creek, near road below Notice Creek Bridge. Comment
  POM182459  Athyrium filix-femina subsp. cyclosorum Joseph P. Tracy 1912-7-25 3814 Humboldt Along Black Creek, Kneeland Prairie 762 Comment
  POM319593  Athyrium filix-femina subsp. cyclosorum Patricia Wilder 1968-8-21 4383 Humboldt Bog in Big Lagoon park, just west of Highway 101 2 Comment
  RSA46703  Athyrium filix-femina subsp. cyclosorum Doris K. Kildale 1928-12-29 6762 Humboldt Stevens Grove Comment
  HSC10343  Athyrium filix-femina var. cyclosorum H. S. Logsdon 1964-5-10 3 Humboldt 4 mi. NE of Orick at Boye's Prairie Comment
  RSA424567  Atriplex patula T. S. Elias, Barbara A. Elias 1987-8-26 10623 Humboldt Fernbridge Comment
  UC161058  Atriplex triangularis Joseph P. Tracy 1911-10-22 3552 Humboldt Salt marsh near Eureka (region about Humboldt Bay); Northern Coast Region, , nr Eureka 0 Comment
  HSC69755  Baccharis douglasii Thomas W. Nelson 1977-9-22 3752 Humboldt At turnoff to Arcata Redwood Co. Comment
  JEPS21244  Baccharis glutinosa Lincoln Constance 1934-5-29 712 Humboldt Upper Look Prairie Bull Creek Region, South Fork Eel River 365 Comment
  CHSC19741  Baccharis pilularis subsp. consanguinea Gary J. Stebbins 1970-2-2 7 Humboldt Along U. S. 101 1.5 miles north of Patricks Point State Park. 83 Comment
  UCD129438  Baccharis pilularis subsp. consanguinea Linda M. Barker 1976-9-3 1691 Humboldt 3 miles west of Arcata. Comment
  UC36796  Balsamorhiza deltoidea Joseph Burtt Davy and Walter C. Blasdale 1899-6-9 5369 Humboldt near Harris Comment
  BLMAR522  Barbarea orthoceras Jennifer Wheeler 2009-4-30 522 Humboldt King range, Hidden Valley trail Comment
  HSC58642  Barbarea orthoceras G. L. Clifton, Terry Griswold 1979-7-31 11639 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC89439  Barbarea verna P. A. Daly 1985-5-3 35 Humboldt Trinidad Head 61 Comment
  POM118631  Barbarea vulgaris Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  HSC12595  Bellis perennis C. Kline 1970-11-9 61 Humboldt Bayside Rd., .5 mile N of Bayside Comment
  UCD129547  Bellis perennis Suzanne E. May 1967-4-15 34 Humboldt on State Highway 36, 1 mile west of Bridgeville. 182 Comment
  JEPS3739  Bensoniella oregona Rimo Bacigalupi and L. Constance with R. Moran, R. L. Rodriguez and Sherwin Carlquist 1951-6-14 3410 Humboldt on long high ridge between Mad River and Redwood Creek (Bald Mountain ridge) (edge of forest at High Prairie); btw Mad River and Redwood Creek (Bald Mountain ridge) 1066 Comment
  UC1198854  Bensoniella oregona Mrs. R. D. Douglas 1923-5-26 Humboldt Murphy Meadows 1066 Comment
  UC1198388  Berberis aquifolium Joseph P. Tracy 1924-4-27 6641 Humboldt along hwy near Ruby Creek Willow Creek 609 Comment
  HSC72981  Berberis aquifolium var. repens Gail Newton 1980-7-22 1676 Humboldt Near Devils Backbone 1554 Comment
  CAS-BOT-BC75680  Berberis nervosa Doris K. Kildale 1928-5-15 6032 Humboldt Bug Creek, Chaparral Mountain. Comment
  CAS-BOT-BC75687  Berberis nervosa Carl B. Wolf 1927-8-28 1179 Humboldt 13 miles above Blue Lake on the Lord Ellis Road. Comment
  HSC100398  Berberis nervosa Carl C. Marshall Apr 1886 67 Humboldt Woods in redwood belt. Comment
  HSC3348  Berberis nervosa Eugene Andreuccetti 1964-5-2 36 Humboldt 5 mi. W of Willow Creek on Hwy. 299 Comment
  RSA24183  Berberis pinnata C. B. Wolf 1941-3-1 9974 Humboldt Kneeland Prairie, 1/8 mi. s.e. of Kneeland school. 762 Comment
  SEINET11861631  Bidens frondosa J. P. Tracy 1950-9-22 19367 Humboldt Klamath River, near Slate Creek below Orleans 8 mi 122 Comment
  CAS-BOT-BC66273  Blechnum spicant Volney Rattan 1878-1-1 s.n. Humboldt Mad River Comment
  SBBG226  Blechnum spicant H. and M. Dearing 1939-5-26 3450 Humboldt near Bishop Pines Auto Court Comment
  JEPS53077  Boechera retrofracta Joseph Burtt Davy and Walter C. Blasdale 1899-6-2 5859 Humboldt Trinity Summit Comment
  HSC31637  Borago officinalis Glenn McGourty 1974-6-1 85 Humboldt Comment
  UC492218  Boykinia major Joseph P. Tracy Jul 16 1930-Jul 19 1930 8935 Humboldt South Fork Mountain Northern Coast Ranges, South Fork Mountain (in wet meadow at McKay Camp) 1676 Comment
  UC725902  Boykinia occidentalis A. A. Heller 1937-6-11 15893 Humboldt along U.S. Highway #101 between Bishop Pine Lodge and Big Lagoon; between Bishop Pine Lodge and Big Lagoon Comment
  HSC98960  Brassica nigra Cara Witte 2007-7-24 573 Humboldt Ammon Ridge Road. At intersection with 5N15. 1441 Comment
  HSC39796  Brassica rapa Peter Sorensen 1976-5-29 Humboldt King Salmon Comment
  HSC6586  Brassica rapa C. O. Baker 1962-5-7 32 Humboldt 2 mi. S of Trinidad along Hwy. 101 15 Comment
  CAS-BOT-BC106292  Brickellia californica Doris K. Kildale 1926-8-8 2480 Humboldt Dyerville Bridge 45 Comment
  SEINET14395468  Briza maxima K. W. Parker 1931-5-15 1003 Humboldt 2 mi N of Blocksburg Comment
  HSC65114  Briza minor J. P. Smith 1973-5-26 6864 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UCR123923  Brodiaea elegans subsp. elegans George K. Helmkamp, E. A. Helmkamp 2001-7-8 6967 Humboldt North coast hills., Calif. Hwy 36, 2.2 mi west of Dinsmore 732 Comment
  UC1442888  Brodiaea elegans subsp. elegans Theodore F. Niehaus 1965-6-8 566 Humboldt along Glory road 1.7 mi sw Alderpoint Comment
  CAS-BOT-BC486507  Brodiaea stellaris W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula Comment
  BLMAR554  Brodiaea terrestris Jennifer Wheeler 2004-5-20 554 Humboldt Stornetta Ranch Comment
Read comments
Apr 21 2014
  HSC3017  Brodiaea terrestris subsp. terrestris D. E. Anderson 1963-5-25 2493 Humboldt 4 mi. W of Petrolia Comment
  SEINET799035  Bromus carinatus Joseph P. Tracy 1919-1 5159 Humboldt Hill slopes at W. side of Trinity River, near Willow Creek 152 Comment
  SEINET4345214  Bromus carinatus J. B. Davy 1899-6-11 5408 Humboldt Summit above Hubbard Station Comment
  CAS-BOT-BC149569  Bromus carinatus var. carinatus Joseph P. Tracy 1935-6-23 13982 Humboldt Northern Coast Ranges. French Camp Ridge. 1066 Comment
  UC249783  Bromus carinatus var. carinatus Joseph P. Tracy 1923-6-19 6302 Humboldt Northern Coast Ranges, Wilder Ridge Wilder Ridge; Northern Coast Ranges, Wilder Ridge 762 Comment
  UC249867  Bromus carinatus var. carinatus Joseph P. Tracy 1923-6-18 6282 Humboldt Northern Coast Ranges, Bear River Ridge Bear River Ridge; Northern Coast Ranges, Bear River Ridge 304 Comment
  HSC102213  Bromus carinatus var. marginatus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1129 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC552679  Bromus commutatus Joseph P. Tracy 1935-5-25 13873 Humboldt Fort Seward 106 Comment
  HSC79491  Bromus diandrus Kenneth Clark 1980-4-18 575 Humboldt 350 yds. S of Deadman's Gulch 8 Comment
  HSC9269  Bromus diandrus J. W. Johnson 1962-4-8 1222 Humboldt Arcata, Mad River Co. Park Comment
  HSC9283  Bromus diandrus S. R. Johnson 1965-4-16 38 Humboldt 1.5 mi. N of Luffenholtz Beach. Comment
  BLMAR158  Bromus hordeaceus Donald Hazlett 1994-6-7 158 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC38930  Bromus hordeaceus Linda M. Barker 1976-5-13 1477 Humboldt 3 mi. W of Arcata Comment
  HSC90691  Bromus hordeaceus Gail Newton 1982-5-31 3555 Humboldt Elk River Wildlife Area, Eureka Comment
  CAS-BOT-BC185516  Bromus vulgaris Harley P. Chandler 1901-5-1 1177 Humboldt North Coast Ranges. Humboldt Bay. 30 Comment
  UCD60241  Bromus vulgaris Joseph P. Tracy 1937-6-27 15378 Humboldt Four-mile Creek (west of mouth of South Fork of Trinity). 670 Comment
  HSC57627  Cacaliopsis nardosmia G. L. Clifton, Griswold 1979-7-25 10766 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  CHSC10127  Cakile maritima J. W. Johnson 1961-11-29 1415 Humboldt Arcata. At the end of ridge 3, Christenson Farm, Samoa Peninsula. Comment
  HSC49024  Cakile maritima Patricia Shesgreen 1978-8-19 143 Humboldt Mad River Beach, Arcata Comment
  HSC95096  Cakile maritima Andrea Pickart 2002-7-2 150 Humboldt King Salmon Sand Spit 0 Comment
  CAS-BOT-BC36911  Cakile maritima var. maritima Kenneth Clark 1981-5-24 1395 Humboldt Shelter Cove. 300 yards west of Dead Man's gulch. 3 Comment
  HSC79357  Calamagrostis foliosa Kenneth Clark 1980-5-10 641 Humboldt Shelter Cove, 5' above mean high tide, E facing coastal bluff Comment
  SEINET200619 Image available Calamagrostis koelerioides Joseph P. Tracy 1934-7-18 13408 Humboldt Horse Mountain. Comment
  UCD57256  Calamagrostis koelerioides R. Tofsrud 1948-9-1 s.n. Humboldt Road junction near summit of Horse Mt. 1463 Comment
  HSC9413  Calamagrostis nutkaensis DWC 1956-5-29 14 Humboldt Capetown, Mattole soil Comment
  UC161052  Calandrinia ciliata Joseph P. Tracy Jul 27 1908-Jul 30 1908 2810 Humboldt opposite Buck Mountain (in sandy places along river); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1922745  Callitriche heterophylla subsp. bolanderi Robert F. Thorne, P. Everett 1965-8-9 35323 Humboldt CLAM BEACH COUNTY PARK: along highway. Comment
  CAS-BOT-BC80382  Calocedrus decurrens Doris K. Kildale 1928-7-1 5313 Humboldt Klamath River at mouth of Bluff Creek Comment
  SEINET4169781  Calochortus catalinae Unknown 1935-7-14 Humboldt Clear Lake 1524 Comment
  HSC100551  Calochortus pulchellus Carl C. Marshall May 1887 479 Humboldt S Humboldt. Comment
  HSC102535  Calochortus tolmiei M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1521 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC73066  Calochortus tolmiei M. A. Baker 1980-6-16 1946 Humboldt Near Onion Mtn. 1280 Comment
  RSA113893  Calochortus tolmiei E. K. Balls, Lee W. Lenz 1955-5-15 20738 Humboldt 13.5 miles SW from Ferndale along Old Coast road to Capetown. 335 Comment
  CAS-BOT-BC494354  Calochortus tolmiei Doris K. Kildale 1929-4-27 7451 Humboldt Willow Creek. Salya road, along Trinity River. 3 miles north of Willow Creek. Comment
  HSC26870  Calochortus tolmiei Clifton Raymond Chesbrough 1973-6-19 94 Humboldt 0.5 mi. N of College Cove along coast Comment
  POM169967  Calochortus tolmiei Joseph P. Tracy 1917-5-30 4813 Humboldt Sand dunes west of Dows Prairie; Northern Coast Ranges 15 Comment
  RSA168945  Calochortus vestae Joseph P. Tracy 1950-6-23 18868 Humboldt Dobbyn Creek, 3 miles northeast of Alderpoint. 213 Comment
  CAS-BOT-BC275365  Calycadenia truncata var. truncata Doris K. Kildale 1927-7-3 3656 Humboldt Willow Creek Flat 152 Comment
  HSC72777  Calypso bulbosa T. R. Crumbo 1977-4-6 4 Humboldt Hwy. 36, 0.25 mi W of Grizzly Creek State Campground. 91 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
  UC1198374  Calyptridium monospermum Joseph P. Tracy 1919-9-18 5223 Humboldt Trinity Summit; Northern Coast Ranges, Trinity Summit 1889 Comment
  UC1198376  Calyptridium monospermum Joseph P. Tracy 1933-7-11 12704 Humboldt Grouse Mountain 1524 Comment
  JEPS31595  Calystegia occidentalis subsp. occidentalis W. L. Jepson 1934-5-7 16700 Humboldt Buckeye Prairie , Buckeye Prairie (Bull Creek) Comment
  UC562488  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1933-7-25 12883 Humboldt Grouse Mountain , Grouse Mountain (North Coast Ranges) 1524 Comment
  UC198628  Calystegia soldanella Joseph P. Tracy 1917-5-30 4803 Humboldt sand dunes near Little River; Northern Coast Ranges, near Little River 6 Comment
  CAS-BOT-BC493385  Camassia quamash subsp. linearis Volney Rattan 1878-1-1 s.n. Humboldt unspecified Comment
  JEPS61544  Camassia quamash subsp. quamash Joseph P. Tracy 1930-7-17 9000 Humboldt South Fork Mountain, at McKay Camp South Fork Mountain; , McKay Camp 1676 Comment
  JEPS61560  Camassia quamash subsp. quamash Hilda W. Grinnell 1932-6-12 Humboldt below McKay Camp (South Fork Mountain); South Fork Mountain Comment
  HSC12428  Camissonia cheiranthifolia Gary J. Stebbins 1970-4-18 69 Humboldt Along Rd. to Samoa, 1.1 mi. S of Mad River Slough bridge Comment
  HSC16446  Camissonia cheiranthifolia L. H. Myers 1963-5-13 18 Humboldt W of Lanpheres Rd., Mad River slough area Comment
  HSC16444  Camissonia cheiranthifolia C. O. Baker 1962-5-7 31 Humboldt 1 mi. N of Samoa, 1/2 mi. E of coastline Comment
  POM254099  Camissonia cheiranthifolia subsp. cheiranthifolia A. H. Harris, S. K. Harris, Clarence Crane Jr. 1939-8-23 970 Humboldt Samoa Comment
  HSC36594  Camissonia strigulosa K. Irwin 1976-4-17 Humboldt 1/2 mi. S of Lamphere Nature Conservancy next to Mad River Slough Comment
  CAS-BOT-BC160243  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Ira L. Wiggins 1930-7-7 4670 Humboldt Near Samoa Comment
  UC249615  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Joseph P. Tracy 1921-7-10 5852 Humboldt Big Lagoon Northern Coast Region 6 Comment
  JEPS11742  Campanula prenanthoides W. L. Jepson 1932-7-24 16383 Humboldt Fruitland Comment
  SEINET10873254  Campanula prenanthoides Rogers McVaugh 1941-8-3 McVaugh 6214 Humboldt 3.5 miles south of Garberville, steep shaly roadside bank, in woods Comment
  SEINET10873276  Campanula prenanthoides Olmo 1928-6-10 OLMO s.n. Humboldt WOOLEY CREEK Comment
  SEINET10905930  Campanula prenanthoides Duncan 1920-9-22 Duncan s.n. Humboldt Hoopa Valley Comment
  SEINET10972405  Campanula prenanthoides Willis L. Jepson 1932-7-24 Jepson 16383 Humboldt FRUITLAND Comment
  UC1021825  Campanula prenanthoides J. M. Tucker 1948-9-3 1859 Humboldt road bank on Friday Ridge Road just below Black Rock ((junction of Friday Ridge Road and the Horse Mountain-Grouse Mountain Road)) Comment
  UC416597  Campanula prenanthoides Harley P. Chandler 1901-6-14 1476 Humboldt Orleans to Somes Bar; Klamath River 304 Comment
  SD61053  Campanula scouleri Darley F. Howe 1964-8-7 3944 Humboldt 8.2 miles from Highway 96 on Mill Creek Road; Hoopa Valley. 1064 Comment
  SEINET10463753  Campanula scouleri Wolf 1934-7-2 WOLF 5854 Humboldt 2 miles from Bald Mountain on road to Korbel 762 Comment
  UC602560  Campanula scouleri Joseph P. Tracy 1937-7-25 15560 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC1222657  Capsella bursa-pastoris Joseph P. Tracy 1950-7-6 19005 Humboldt 2 mi s of Burr Valley (on the Albee Road); Albee Road 1158 Comment
  HSC6618  Capsella bursa-pastoris David K. Smith 1968-2-3 3 Humboldt Crannell Rd. past the bridge Comment
  HSC33178  Cardamine californica Thomas W. Nelson 1974-4-20 1184 Humboldt At Elk Head, N of Trinidad Comment
  SEINET11196228  Cardamine californica L. E. Detling 1935-4-20 1643 Humboldt Redwood Flat, 1 mile N of Dyerville. Comment
  CHSC110707  Cardamine californica var. californica Dean Wm. Taylor 2004-6-24 19143 Humboldt Spike Buck Mountain, north slope thereof. 1432 Comment
  RSA0034557  Cardamine californica var. integrifolia H. E. Parks, Joseph P. Tracy 1931-3-26 916 Humboldt Lower Van Duzen River. 61 Comment
  CAS-BOT-BC37792  Cardamine nuttallii Joseph P. Tracy 1927-6-12 8129 Humboldt Northern Coast Ranges. Horse Mountain. 1524 Comment
  HSC104050  Cardamine nuttallii E. R. Fyer 2015-3-19 5 Humboldt Six Rivers National Forest; along the East Fork of Willow Creek, off Hwy. 299. 505 Comment
  HSC39987  Cardamine oligosperma Linda M. Barker 1976-3-22 1338 Humboldt 3 mi. W of Arcata Comment
  UCD150616  Cardionema ramosissimum Joseph P. Tracy 1947-7-3 17765 Humboldt at mouth of Little River. 6 Comment
  UCD150620  Cardionema ramosissimum Linda M. Barker 1976-4-13 1386 Humboldt 3 miles west of Arcata. Comment
  SEINET200666  Carex abrupta Joseph P. Tracy 1928-6-17 8450 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC50827  Carex arcta J. P. Tracy 1901-6-30 1195 Humboldt immediate vicinity of Eureka 0 Comment
  UC562628  Carex athrostachya Joseph P. Tracy 1904-7-18 13426 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC70163  Carex athrostachya Thomas W. Nelson 1978-7-3 4411 Humboldt Along road to Anderson's Ford, McKeown Ranch 823 Comment
  HSC75485  Carex bolanderi J. O. Sawyer 1980-7-18 3604 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC72698  Carex brainerdii Gail Newton 1980-6-24 571 Humboldt Near Ladder Rock 1570 Comment
  RSA0079896  Carex brevicaulis Joseph P. Tracy 1939-4-27 16228 Humboldt Mouth of Little River. 9 Comment
  JEPS25962  Carex buxbaumii Joseph P. Tracy 1927-4-23 7916 Humboldt Big Lagoon 3 Comment
  CAS-BOT-BC34379  Carex cusickii Joseph Prince Tracy 1938-7-6 16023 Humboldt Big Lagoon. 6 Comment
  CAS-BOT-BC34975  Carex densa Joseph Prince Tracy 1942-6-15 17135 Humboldt Englewood. Natural prairie, near Redcrest resort. 91 Comment
  CHSC35530  Carex densa Thomas Nelson; Ken Hindley 1978-5-28 4086 Humboldt On Mckeown Ranch north of Dinsmore. 762 Comment
  UC1103113  Carex deweyana subsp. leptopoda Joseph P. Tracy 1937-6-20 15344 Humboldt 10 mi up stream mouth of Bear River; Bear River 152 Comment
  HSC102223  Carex echinata subsp. echinata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1140 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC19861  Carex echinata subsp. echinata Joseph Prince Tracy 1930-7-16 8986 Humboldt North Coast Ranges. South Fork Mountain. At McKay Camp. 1676 Comment
  UC1103127  Carex echinata subsp. echinata Joseph P. Tracy 1923-6-24 6372 Humboldt in cold wet meadow near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC96552  Carex echinata subsp. phyllomanica Gordon Leppig 1997-6-19 445 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  RSA12426  Carex exsiccata Carl B. Wolf 1934-7-2 5868 Humboldt Small Lake at Snow Camp. (Mountains east of Korbel). 1372 Comment
  UC562648  Carex feta Joseph P. Tracy 1935-5-25 13838 Humboldt Fort Seward 106 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
  UC1103075  Carex globosa Joseph P. Tracy 1933-6-7 12521 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UC562729  Carex gynodynama Joseph P. Tracy 1927-5-8 7969 Humboldt Northern Costa Ranges. Phillipsivelle, facing south Fork of Eel River. Comment
  UC1103098  Carex harfordii Joseph P. Tracy 1935-6-8 13939 Humboldt at Eureka Northern Coast Ranges 0 Comment
  SEINET7561247 Image available Carex harfordii David Castaner 1989-6-19 10253 Humboldt Gold Bluff Beach at entrance. Comment
  CAS-BOT-BC21754  Carex hassei Joseph Prince Tracy 1941-5-11 16868 Humboldt Big Lagoon. 152 Comment
  HSC48358  Carex hendersonii D. H. Norris May 1970 12460 Humboldt Fringes of Freshwater Lagoon, S of Orick Comment
  CAS-BOT-BC31263  Carex lenticularis var. impressa Joseph Prince Tracy 1932-7-14 10555 Humboldt Trinity Summit, Corral Prairie, in wet meadow. 1584 Comment
  JEPS79856  Carex lenticularis var. impressa Joseph P. Tracy 1935-7-23 14148 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  CAS-BOT-BC31463  Carex leptopoda Joseph Prince Tracy 1943-7-18 17442 Humboldt Big Lagoon 9 Comment
  RSA88691  Carex leptopoda F. W. Peirson 1923-7-11 3665 Humboldt 18 miles N. of Eureka Comment
  HSC44035  Carex leptopoda Thomas W. Nelson, Jane P. Nelson 1977-7-1 3580 Humboldt Along road, N from Alder Springs 1463 Comment
  JEPS26004  Carex lyngbyei Joseph P. Tracy 1938-7-15 16069 Humboldt Mouth of Eel River 3 Comment
  UC1133402  Carex lyngbyei H. S. Yates 1936-6-23 5861 Humboldt 1 mi w Bayside; Eureka Quadrangle 0 Comment
  CAS-BOT-BC31823  Carex mendocinensis R. Tallent 1935-7-14 14086 Humboldt Six Rivers National Forest. Roadside of Horse Mtn. 1419 Comment
  JEPS79850  Carex mendocinensis Joseph P. Tracy 1935-7-14 14086 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  UC249752  Carex mendocinensis Joseph P. Tracy 1924-6-15 6697 Humboldt Northern Coast Ranges. Near Ruby Creek, on the Willow Creek highway. Comment
  UC302096  Carex microptera Joseph P. Tracy 1906-5-20 2461 Humboldt Eureka Northern Coast Region 0 Comment
  HSC45437  Carex microptera Thomas W. Nelson, Jane P. Nelson 1978-7-2 4401 Humboldt Off FS 2S08 near Pine Mtn., road to Lost Lake 1463 Comment
  CAS-BOT-BC32130  Carex multicaulis Joseph Prince Tracy 1933-7-11 12662 Humboldt Horse Mountain. 1432 Comment
  HSC73962  Carex multicaulis Gail Newton 1980-6-7 126 Humboldt Near Brush Mtn. 1128 Comment
  UC152055  Carex multicaulis Joseph P. Tracy 1950-7-1 18958 Humboldt near Friday Camp; Grouse Mountain, Friday Ridge 1219 Comment
  HSC102227  Carex multicostata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1148 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  SEINET7568483 Image available Carex multicostata L. P. Janeway 2003-7-30 7945 Humboldt Grouse Mountain quad. High North Coast Ranges. Edge of seedy area at upper edge of Clear Lake, 2.9 km southeast of Titlow Hill. 1494 Comment
  HSC43480  Carex multicostata Thomas W. Nelson, Jane P. Nelson 1977-9-3 3729 Humboldt Growing along creek drainage N end of pond above Alder Springs 1524 Comment
  CAS-BOT-BC119657  Carex neurophora Joseph Prince Tracy 1935-7-23 14143 Humboldt Trinity Summit, Corral Prairie, in wet meadow. 1584 Comment
  CAS-BOT-BC119539  Carex nudata W. R. Dudley 1899-6-21 s.n. Humboldt Bluffs below forks of Eel River. Comment
  CHSC84722  Carex obnupta L. P. Janeway 2003-7-27 7925 Humboldt North Coast. Edge of marsh on south side of southwest end of Hwy 101 causeway across Big Lagoon. 2 Comment
  CHSC88893  Carex obnupta L. P. Janeway; B. Castro 2004-9-10 8319 Humboldt North Coast. South Spit of Humboldt Bay, 3.6 km north-northeast of Table Bluff Lighthouse site; between South Spit Road and the Humboldt Bay mudflats. 2 Comment
  HSC40258  Carex obnupta Linda M. Barker 1976-4-30 1417 Humboldt 3 mi. W of Arcata Comment
  HSC7069  Carex obnupta S. J. Hawks, D. E. Anderson 1965-5-18 14 Humboldt 1/4 mi. W of Fairhaven Comment
  RSA22379  Carex obnupta D. D. Keck 1938-8-5 4770 Humboldt Big Lagoon, among rocks in open spots on beach Comment
  UC1152077  Carex pachycarpa Joseph P. Tracy 1950-7-25 19064 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC73703  Carex pachystachya M. A. Baker 1980-7-22 3122 Humboldt Near Grogan Hole. 1676 Comment
  POM247172  Carex pachystachya Joseph P. Tracy 1935-6-8 13938 Humboldt Eureka. 0 Comment
  RSA246858  Carex pansa Robert F. Thorne, Percy C. Everett 1965-8-5 35165 Humboldt Samoa Dunes. 3 Comment
  UC562269  Carex stipata var. stipata Joseph P. Tracy 1931-5-17 9422 Humboldt opposite mouth Willow Creek (Lack Pond); Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS80015  Carex subbracteata Joseph P. Tracy 1925-7-5 7165 Humboldt High Prairie on Bald Mountain Northern Coast Ranges, Bald Mountain, High Prairie 1066 Comment
  UC196570  Carex subbracteata Joseph P. Tracy 1916-5-31 4695 Humboldt along Eel River from South Fork to Scotia (Holmes Flat); Northern Coast Ranges 60 Comment
  CAS-BOT-BC116909  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-6-22 4737 Humboldt Near Alder Point Comment
  UC562656  Carex subfusca Joseph P. Tracy 1935-7-27 14296 Humboldt McKay Prairie Trinity Summit 1584 Comment
  UC249758  Carex tumulicola Joseph P. Tracy 1923-6-19 6296 Humboldt Upper Mattole Valley Northern Coast Ranges 152 Comment
  UC1103117  Carex tumulicola Joseph P. Tracy 1919-5-31 5153 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC115544  Carex unilateralis Joseph Prince Tracy 1941-6-29 16935 Humboldt Large dense clump, Hettenshaw Valley 944 Comment
  UC303072  Carex unilateralis Joseph P. Tracy 1908-7-22 2902 Humboldt near summit of ridge between Van Duzen and Mad Rivers, on Dinsmore's Ranch 1066 Comment
  HSC103141  Carex utriculata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1067 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC114984  Carex viridula H. E. Parks 1935-9-1 5214 Humboldt Abundant in center of Dry Lagoon, south of Orick. Comment
  CHSC43009  Carex viridula subsp. viridula L. P. Janeway 1987-8-30 2534 Humboldt At Dry Lagoon. Middle of lagoon. 3 Comment
  UC1103605  Carex viridula var. viridula Joseph P. Tracy 1934-10-21 13693 Humboldt in front of South End Stone Lagoon (Dry Lagoon) 3 Comment
  HSC59487  Carpobrotus edulis M. A. Ericksen 1979-4-29 238 Humboldt Across from the Samoa Cookhouse, Samoa, on Samoa Peninsula. Comment
  CAS-BOT-BC281884  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt Luke's Prairie on ridge 1 mile N above Bull Creek, ca 2 miles W of Dyerville Comment
  CDA6965  Carthamus lanatus G. D. Barbe 1978-7-27 2418 Humboldt Along Salmon Creek, west of Miranda on Salmon Creek Road-Thomas Road. 0 Comment
  RSA167257  Castilleja affinis Joseph P. Tracy 1950-6-15 18799 Humboldt Mail Ridge, north of Harris 7 miles Comment
  BLMAR667  Castilleja affinis subsp. litoralis Jennifer Wheeler 2012-7-12 667 Humboldt King range, Strawberry rock 253 Comment
  UC147876  Castilleja affinis subsp. litoralis J. P. Tracy 1900-6-25 864 Humboldt immediate vicinity Eureka 0 Comment
  HSC90777  Castilleja ambigua subsp. humboldtiensis Peter Sorensen 1976-6-16 Humboldt Woodley Island. Comment
  UC146237  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1900-7-4 867 Humboldt Samoa; North Coast Region, Humboldt Bay Region 0 Comment
  HSC56121  Castilleja applegatei G. L. Clifton, Griswold 1979-8-1 11903 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  JEPS8625  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1935-7-24 14203 Humboldt near Trinity Summit Ranger Station; Trinity Summit 1828 Comment
  UC582584  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1935-7-24 14203 Humboldt near Trinity Summit, Ranger Station; Trinity Summit 1828 Comment
  CAS-BOT-BC255523  Castilleja applegatei var. pinetorum Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Mt. 1828 Comment
  UC1173698  Castilleja attenuata Joseph P. Tracy 1939-4-29 16255 Humboldt Orleans 121 Comment
  HSC95078  Castilleja exserta subsp. latifolia Andrea Pickart 2002-6-4 114 Humboldt N Spit Dunes 0 Comment
  JEPS88809  Castilleja exserta subsp. latifolia T. I. and F. M. Chuang 1991-7-9 7877 Humboldt Samoa Sand Dune; near Louisiana Pacific Plant Comment
  RSA516622  Castilleja litoralis R. C. Bacigalupi, G. Thomas Robbins, C. L. Custer 1954-8-11 4758 Humboldt 1.2 miles south of Trinidad. Comment
  HSC102069  Castilleja miniata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 971 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC56190  Castilleja miniata Gilbert Muth 1979-8-1 12128 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC179928  Castilleja miniata Joseph P. Tracy 1914-7-4 4537 Humboldt High Prairie Northern Coast Ranges, Bald Mountain (on Bald Mountain) 1066 Comment
  HSC73640  Castilleja pruinosa M. A. Baker 1980-7-23 3169 Humboldt Near Orleans Mtn. 1859 Comment
  JEPS16901  Castilleja pruinosa Rimo Bacigalupi with G. Thomas Robbins 1954-6-28 4652 Humboldt 7.3 mi n Willow Creek (above Trinity River, above road between Willow Creek and Hoopa Valley); Six Rivers National Forest 274 Comment
  JEPS88810  Castilleja pruinosa T. I. and F. M. Chuang 1991-7-9 7875 Humboldt 4.3 mi se Route 299 junction with Titlow Hill road (on way to Horse Mt) Comment
  UC673104  Castilleja pruinosa Joseph P. Tracy with Dr. F. W. Pennell 1940-7-7 16669 Humboldt Grouse Mt. 1463 Comment
  HSC38480  Castilleja rubicundula subsp. lithospermoides D. E. Anderson, J. P. Smith 1971-6-18 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  HSC74353  Ceanothus cuneatus Gail Newton 1980-6-17 208 Humboldt Near Onion Mtn. 1341 Comment
  UC249581  Ceanothus cuneatus var. cuneatus Joseph P. Tracy 1922-4-30 5998 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  RSA600895  Ceanothus incanus Louis C. Wheeler 1959-8-1 7620 Humboldt Queens Peak Mine. Comment
  UC502945  Ceanothus incanus Joseph P. Tracy 1932-5-1 9878 Humboldt Garberville vicinity Northern Coast Ranges 121 Comment
  CAS-BOT-BC50050  Ceanothus incanus Doris K. Kildale 1927-6-25 3579 Humboldt at Thorn near schoolhouse road Comment
  RSA186940  Ceanothus integerrimus Marcus E. Jones 1931-7-16 28946 Humboldt Junction, East of Arcata. Comment
  HSC97627  Ceanothus integerrimus var. integerrimus Cara Witte 2007-6-5 209 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1.25 miles south of intersection with 5N04. 1405 Comment
  JEPS42237  Ceanothus parryi W. L. Jepson 1932-8-6 16491 Humboldt Weott 91 Comment
  UC249582  Ceanothus parryi Joseph P. Tracy 1921-5-27 5808 Humboldt near Humboldt-Mendocino County line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  CAS-BOT-BC52043  Ceanothus prostratus Joseph P. Tracy 1927-5-15 8056 Humboldt Hoopa Mountain. On road West from Hoopa Valley, in open forest of yellow and sugar pines 914 Comment
  CAS-BOT-BC52219  Ceanothus thyrsiflorus Doris K. Kildale 1926-6-18 2399 Humboldt Gold Bluffs Comment
  HSC101668  Ceanothus thyrsiflorus J. P. Smith, J. O. Sawyer 2011-4-23 13129 Humboldt Kings Peak Road, 3.2 miles from its junction with Shelter Cove Rd Comment
  RSA77347  Ceanothus thyrsiflorus F. W. Peirson 1926-7-12 70431 Humboldt Orick Comment
  UC165825  Ceanothus thyrsiflorus Joseph P. Tracy 1909-6-6 2984 Humboldt Eureka 0 Comment
  SEINET13946096 Image available Ceanothus thyrsiflorus F. G. Meyer 1938-1 1404 Humboldt 30 mi N of Eureka Comment
  UCD170772  Ceanothus thyrsiflorus Gordon Leppig 1998-5-11 756 Humboldt Rt. #101 mile marker 97.71. 30 Comment
  OBI44963  Ceanothus thyrsiflorus var. thyrsiflorus Midred J. Cady 1938-7-14 s.n. Humboldt Near Trinidad Comment
  RSA183618  Ceanothus velutinus D. E. Anderson 1965-5-1 3591 Humboldt 6.3 miles N of Hoopa along Hwy 96 Comment
  HSC55662  Ceanothus velutinus var. velutinus Overton, Butler 1979-7-24 9803 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  CAS-BOT-BC277177  Centaurea X pouzinii T. C. Fuller 1960-8-25 4975 Humboldt Pacific Lumber Co., Perrott Creek, across Eel River from Dyerville Comment
  CAS-BOT-BC277178  Centaurea X pouzinii T. C. Fuller 1961-9-26 7030 Humboldt Horse Prairie, 2 mi. s. of Redcrest Comment
  CDA7303  Centaurea nigra Tario 1933-11-15 Humboldt Near Eureka. 0 Comment
  UC673086  Centaurea solstitialis Joseph P. Tracy 1940-10-17 16759 Humboldt near Dyerville (South Fork Station) 45 Comment
  SEINET200746  Centaurium erythraea Joseph P. Tracy 1934-7-9 13347 Humboldt Dobbyn Creek. Comment
  RSA391523  Centaurium muehlenbergii H. M. Pollard 1948-7-17 s.n. Humboldt Orleans. Comment
  HSC34450  Cephalanthera austiniae A. Montalvo, J. D. Ackerman 1975-6-22 495 Humboldt 2 mi. E of Bridgeville along Hwy. 36 Comment
  HSC45236  Cephalanthera austiniae Thomas W. Nelson, Jane P. Nelson 1977-7-1 3557 Humboldt N side of ridge between Bear Creek & Blanket Creek 1463 Comment
  UC199562  Cephalanthera austiniae Chesnut and Drew 1885-7-9 Humboldt Campbell's Comment
  UC668109  Cerastium fontanum subsp. vulgare Joseph P. Tracy 1933-5-28 12412 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  HSC39837  Cerastium glomeratum Peter Sorensen 1976-6-12 Humboldt Woodley Island, Humboldt Bay Comment
  HSC74273  Cerastium glomeratum M. A. Baker 1980-5-23 1381 Humboldt Near Buck Mtn. 1524 Comment
  POM187538  Cercis occidentalis Marcus E. Jones 1931-7-16 28996 Humboldt Junction, East of Arcata. Comment
  UC160965  Cercis occidentalis Harley P. Chandler June, 1901 1428 Humboldt Klamath River North Coast Ranges 304 Comment
  JEPS44706  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1929-8-25 8661 Humboldt Trinity River Valley at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC85652  Chamaecyparis lawsoniana Joseph P. Tracy 1927-3-27 7864 Humboldt Willow Creek Canyon 762 Comment
  CAS-BOT-BC85659  Chamaecyparis lawsoniana C. Hart Merriam 1920-9-19 s.n. Humboldt East slope Berry Mt. west of Willow Creek (on Trinity River) Comment
  UCSB12070  Chamaecyparis lawsoniana Howe, J. 1938-3-30 Humboldt Humboldt County Comment
  CAS-BOT-BC166038  Chamerion angustifolium subsp. circumvagum Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC93743  Chamerion angustifolium subsp. circumvagum Gordon Leppig 1998-9-20 1103 Humboldt Mckinleyville, Hammond Trail, 100 m N of Fischer Ave. 18 Comment
  JEPS39311  Chamerion angustifolium subsp. circumvagum W. L. Jepson 1921-9-20 10654 Humboldt s Garberville; South Fork Eel River, Richardson Grove Comment
  UC535749  Chamerion angustifolium subsp. circumvagum Eleanor Armstrong 1934-8-15 1146 Humboldt near road Richardson Grove 121 Comment
  CAS-BOT-BC68264  Cheilanthes gracillima Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Mt. 1828 Comment
  HSC39679  Cheilanthes gracillima Thomas W. Nelson, Jane Nelson 1976-6-16 2744 Humboldt Just W of Alder Springs 1524 Comment
  HSC72962  Cheilanthes gracillima Gail Newton 1980-7-14 1485 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC74806  Cheilanthes gracillima Gail Newton 1980-7-23 1717 Humboldt Near Packsaddle Ridge 1463 Comment
  CAS-BOT-BC70164  Cheilanthes gracillima Henry M. Pollard 1947-9-1 s.n. Humboldt Peak of Somes Mtn. nr. Orleans 1524 Comment
  UC55948  Chenopodium album J. P. Tracy 1903-8-4 1927 Humboldt Immediate vicinity of Eureka 0 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
  UC179956  Chenopodium murale Joseph P. Tracy 1914-6-26 4519 Humboldt Eureka Northern Coast Region 0 Comment
  HSC54858  Chimaphila menziesii G. L. Clifton, Griswold 1979-7-25 10754 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC71674  Chimaphila menziesii M. A. Baker 1980-6-26 2390 Humboldt Near Sims Creek 610 Comment
  CAS-BOT-BC451494  Chimaphila umbellata Milo S. Baker 1947-8-10 11899 Humboldt 15 mi. NE of Hoopa near end of forest road 1371 Comment
  SJSU913A  Chimaphila umbellata J. W. Tilden 1946-6-20 1011 Humboldt Bluff Cr c. 1.5 mi above Klamath R Comment
  JEPS50839  Chlorogalum pomeridianum var. pomeridianum Wayne Roderick 1966-6-18 Humboldt ca 3 road mi n Bridgeville 762 Comment
  RSA43836  Chrysanthemum leucanthemum H. M. Pollard 1948-7-18 s.n. Humboldt Near Orleans. Comment
  POM351629  Chrysanthemum leucanthemum B. C. Templeton 1964-6-13 10185 Humboldt North of Patrick's Point on Hwy. 101 Comment
  RSA302606  Chrysanthemum leucanthemum J. R. Shevock 1972-7-26 2230 Humboldt Hwy. 299 305 Comment
  HSC8057  Chrysolepis chrysophylla H. E. Parks, J. P. Tracy 1930-9-15 765 Humboldt Road to Kneeland Bald Hills Comment
  RSA141592  Chrysolepis chrysophylla C. K. Clay 1960-11-11 24316 Humboldt Eureka. Comment
  UC162706  Chrysolepis chrysophylla Joseph P. Tracy 1911-7-8 3448 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges 182 Comment
  JEPS37866  Chrysolepis chrysophylla var. chrysophylla W. L. Jepson 1902-6 2150 Humboldt near McKee's Comment
  UC672860  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1940-8-25 16715 Humboldt Bald Mountain 975 Comment
  UCD110101  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1936-8-7 15117 Humboldt Trinity Summit. 2 miles southeast of Devil's Hole. 1584 Comment
  JEPS156  Cicuta douglasii W. L. Jepson 1936-8-17 17930 Humboldt near Arcata (s of Salmon Creek, Mad River); Mad River Comment
  UCD127289  Cicuta douglasii R. Tofsrud; J. M. Tucker 1948-9-4 1860 Humboldt near mouth of Salmon Creek, east side of Highway 101, around 8 miles south of Eureka. Comment
  HSC56141  Circaea alpina subsp. pacifica G. L. Clifton, Griswold 1979-8-1 11966 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  SJSU8454  Cirsium arvense H. T. Harvey 1977-7-7 622 Humboldt delta lands of Eel River c. 4 mi NW of Ferndale Comment
  CAS-BOT-BC279975  Cirsium douglasii var. douglasii John Thomas Howell 1937-7-31 13716 Humboldt 5 miles east of Berry Summit Comment
  CDA19782  Cirsium occidentale var. candidissimum J. Dolf 2001-9-6 PDR 069832 Humboldt Northern California; Vicinity of Honeydew. 0 Comment
  SBBG113460  Cirsium occidentale var. venustum B. Villegas 1998-8-5 Humboldt near Berry Summit on Titlow Hill Rd, 3.9 mi S of US Hwy 299 Comment
  HSC35706  Cirsium occidentale var. venustum Thomas W. Nelson, B. Reinhardt 1975-7-30 2122 Humboldt Beside private road to Pilot Rock Comment
  UC176413  Cirsium occidentale var. venustum Joseph P. Tracy 1913-6-20 4216 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in valley in Van Duzen River); Northern Coast Ranges, Van Duzen River 762 Comment
  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
  RSA297180  Cirsium vulgare Lincoln Constance 1934-6-11 853 Humboldt South Fork Eel River; Lower Look Prairie and Bull Creek Road to Dyerville Comment
  CAS-BOT-BC228799  Cistanthe umbellata Doris K. Kildale 1927-7-22 3807 Humboldt Lassecks Peaks - Coral [Corral] Goat Camp 1661 Comment
  UCR123961  Clarkia affinis George K. Helmkamp, E. A. Helmkamp 2001-7-8 6967 Humboldt North coast hills., Calif. Hwy 36, 2.2 mi west of Dinsmore 732 Comment
  CAS-BOT-BC160952  Clarkia amoena subsp. amoena Doris K. Kildale 1927-7-17 3749 Humboldt Bug Creek 792 Comment
  CAS-BOT-BC160974  Clarkia amoena subsp. amoena L. R. Abrams 1922-6-25 8229 Humboldt 6 miles north of Garberville along Eel River Comment
  CAS-BOT-BC164177  Clarkia concinna M. S. Jussel 1931-5-2 s.n. Humboldt Garberville Comment
  CAS-BOT-BC164180  Clarkia concinna Harley P. Chandler 1901-6-1 1325 Humboldt Hupa Indian Reservation 152 Comment
  CAS-BOT-BC164178  Clarkia concinna Doris K. Kildale 1927-5-17 3179 a Humboldt Fish Creek near Garberville Comment
  HSC22848  Clarkia concinna subsp. concinna D. E. Anderson, J. O. Sawyer, J. P. Smith 1970-5-10 5055 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  HSC64516  Clarkia concinna subsp. concinna J. P. Smith, Steve Selva 1970-6-14 3840 Humboldt Along Hwy. 96 at Whitmore Creek. 152 Comment
  UC144067  Clarkia concinna subsp. concinna Joseph P. Tracy 1908-6 2742 Humboldt nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  UC1222853  Clarkia concinna subsp. concinna Joseph P. Tracy 1950-5-24 18691 Humboldt between McDonald's and Hopland (along old highway) Comment
  HSC38460  Clarkia davyi A. Montalvo 1975-5-24 270 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  UC153945  Clarkia davyi Joseph P. Tracy 1910-4-24 3127 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  CAS-BOT-BC172502  Clarkia purpurea subsp. quadrivulnera L. R. Abrams 1916-7-11 6028 Humboldt Mouth of Grizzly Creek on Van Duzen River Comment
  UC1196976  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1936-6-9 14898 Humboldt 4 mi nw Petrolia (Domingo Hill) 213 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
  UCD150389  Claytonia cordifolia Harry A. George 1967-7-13 s.n. Humboldt Pepperwood. Comment
  HSC78959  Claytonia perfoliata subsp. perfoliata L. P. Janeway, K. Berg 1984-4-11 726 Humboldt N Spit of Humboldt Bay, turnout along Samoa Rd., across from boat ramp just N of Coast Guard Station 3 Comment
  RSA249332  Claytonia rubra D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5610 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  HSC70226  Claytonia rubra subsp. rubra M. A. Baker 1980-6-8 1888 Humboldt Near Buck Flat. 1554 Comment
  HSC27888  Claytonia sibirica Clifton Raymond Chesbrough 1973-6-19 72 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  OBI33239  Claytonia sibirica David J. Keil 1983-7-1 17261 Humboldt Along Bull Crk Flats Rd 1.4 mi W of US 101. Humboldt Redwoods State Park Comment
  UC672988  Claytonia sibirica Joseph P. Tracy 1937-7-2 15388 Humboldt ne of Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  CAS-BOT-BC443885  Claytonia sibirica Ella Dales Cantelow 1938-10-26 2185 Humboldt Nr. Red Cap Creek, S.W. of Orleans Comment
  HSC4886  Claytonia sibirica J. O. Sawyer 1968-9-11 732 Humboldt Along Mill Creel 1524 Comment
  HSC59143  Claytonia sibirica Terry Roth 1979-5-29 97 Humboldt On the trail from HSU gym to Fern Lake Comment
  SFV18549  Claytonia sibirica L. Hagenauer 2002-4-28 54 Humboldt Blue Lake, Mad River Fish Hatchery. Along east-facing slope next to rock trail leading to Mad River. 16 Comment
  UC1223244  Claytonia sibirica Joseph P. Tracy 1951-6-21 19521 Humboldt Hydesville; back of Everett Beck's house Comment
  HSC97313  Claytonia sibirica var. bulbifera Michael Mesler 2007-6-9 760 Humboldt Near Grouse Mountain; 1.0 mi. east of NF1 on Forest Service Road 5N04 1555 Comment
  HSC92099  Clintonia andrewsiana Brad Klipfel 1973-4-28 10 Humboldt Along Canyon Creek, SW of Korbel Comment
  UC179954  Clintonia andrewsiana Joseph P. Tracy 1914-5-17 4473 Humboldt between Ryans Slough and Freshwater Creek (at the Cumens Claim, region about Humboldt Bay); Northern Coast Region 304 Comment
  UC26602  Collinsia corymbosa Schmidt Humboldt Eureka? Comment
  JEPS6179  Collinsia linearis Joseph P. Tracy 1936-6-10 14931 Humboldt w mouth of South Fork Trinity River (mountain slopes); South Fork Trinity River 457 Comment
  UC727681  Collinsia linearis Milo S. Baker 1946-6-15 11486 Humboldt near Head of Willow Creek Canyon (Trinity Highway); Trinity Highway Comment
  HSC32278  Collinsia parviflora D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5625 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  UC169873  Collinsia parviflora V. Rattan Humboldt Hoopa valley Comment
  UCR45410  Collinsia parviflora Barry Silver 1986-4-23 535 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  HSC39617  Collinsia parviflora Thomas W. Nelson, Jane P. Nelson 1976-6-15 2721 Humboldt Along old trail above Alder Springs 1585 Comment
  HSC22842  Collinsia rattanii D. E. Anderson, J. P. Smith, J. O. Sawyer 1970-5-10 5063 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  POM193011  Collinsia sparsiflora H. E. Parks 1930-5-25 792 Humboldt Laribee Valley. 793 Comment
  JEPS26356  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1916-5-2 4685 Humboldt garden Eureka; North Coast Ranges 762 Comment
  UC1197853  Collomia grandiflora Joseph P. Tracy Jul 16 1930-Jul 19 1930 9066 Humboldt openings in forest near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC45408  Collomia heterophylla Thomas W. Nelson, Jane Nelson 1977-6-19 3517 Humboldt SW of Alder Springs along Rd. 2S08 1463 Comment
  HSC99400  Collomia heterophylla K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 49 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC44406  Collomia heterophylla R. York 1978-5-6 158 Humboldt Along Bluff Creek Rd., 4 mi. from Jct. with Hwy. 96 610 Comment
  HSC55668  Collomia tracyi Overton, Butler 1979-7-25 9869 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  JEPS26243  Collomia tracyi Joseph P. Tracy 1940-7-7 16670 Humboldt on rocky banks Grouse Mt. 1463 Comment
  HSC65326  Convolvulus arvensis J. P. Smith 1973-5-26 6810 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  CDA30705  Conyza canadensis M. K. Beyers, I. Shepardson 2009-9-13 254 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  HSC49219  Coptis laciniata J. O. Sawyer 1977-4-23 2846 Humboldt Dagsaw Spring on road to Onion Mtn. Comment
  BLMAR83  Corallorhiza maculata Jennifer Anthony-Wheeler 1994-6-2 83 Humboldt IAQUA 1036 Comment
  HSC98642  Corallorhiza maculata Cara Witte 2008-7-11 883 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  HSC45234  Corallorhiza maculata Thomas W. Nelson, Jane P. Nelson 1977-7-1 3569 Humboldt N side of ridge between Bear Creek & Blanket Creek 1524 Comment
  RSA20798  Corallorhiza maculata Carl B. Wolf 1937-8-13 9263 Humboldt North Coast Range, 12 mi. E. of Hoopa Valley on New Road toward Trinity Summit. 1677 Comment
  UC1196450  Corallorhiza maculata Joseph P. Tracy 1930-7-18 9063 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC56317  Corallorhiza maculata Joseph Burtt Davy 1899-6-11 5421 Humboldt Hubbard's to Elk Prairie Comment
  UC1196454  Corallorhiza mertensiana Joseph P. Tracy 1947-7-5 17826 Humboldt near Box Camp; Trinity Summit 1524 Comment
  HSC63024  Corallorhiza striata M. A. Baker 1979-6-24 903 Humboldt 2 km. S of Brush Mtn. Comment
  POM21053  Cordylanthus pilosus subsp. pilosus L. R. Abrams 1916-7-22 6158 Humboldt Between Little and Big Van Druzen River - Eureka - Red Bluff Road. Comment
  JEPS6785  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1938-8-14 16118 Humboldt South Fork of Trinity River (mountain slopes w of its mouth) 304 Comment
  CAS-BOT-BC101139  Corethrogyne filaginifolia J. Burtt Davy 1899-6-30 6185 Humboldt near Ferndale, n. Coast Ranges Comment
  POM356152  Corethrogyne filaginifolia var. californica E. A. Purer 1932-7-30 4675 Humboldt South of Orick Comment
  HSC100453  Cornus nuttallii Carl C. Marshall Jun 1886 283 Humboldt Bald Hills. Comment
  HSC99264  Cornus nuttallii T. Jimerson, J. Pageau 1979-6-13 548 Humboldt Near Onion Lake, close to the town of Orleans. 549 Comment
  RSA85517  Cornus nuttallii G. R. Campbell 1954-3-24 19022 Humboldt 17.4 mi. east of jct. of hwys 101 and 299 above Blue Lake. Comment
  JEPS50175  Cornus sessilis W. L. Jepson 1902-7-11 2014 Humboldt river bank of S. Fork Trinity R., Martin's Ranch S. Fork Trinity R., Martin's Ranch Comment
  PASA1934  Cornus sessilis Frank W. Peirson 1932-7-7 Humboldt Wild Creek Comment
  RSA113712  Cornus stolonifera Joseph P. Tracy 1948-9-2 18201 Humboldt Trinity Summitt. In fir woods, head of Little Hors-Linto Creek. 1372 Comment
  UC1199211  Coronopus didymus Joseph P. Tracy 1901-7-31 1234 Humboldt near Hydesville (Northern Coast Region); Northern Coast Region 60 Comment
  CAS-BOT-BC190003  Cortaderia jubata T. C. Fuller 1966-10-4 15238 Humboldt East side of Big Lagoon. In 1100 acres, slope north above headquarters of Georgia Pacific Lumber Compan. Comment
  CDA1906  Cortaderia jubata T. C. Fuller 1966-10-4 15238 Humboldt Northwestern; Outer North Coast Ranges region; 1100 acres, slope N above headquarters of Georgia Pacific Lumber Co. 0 Comment
  CAS-BOT-BC180304  Corylus cornuta subsp. californica P. C. Everett; E. K. Balls 1959-10-24 23956 Humboldt 4.7 mi S from Bluff Creek, Hwy. 96 from Orleans to Weitchpec 121 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
  HSC98468  Cotoneaster simonsii Peter Zika 2007-7-19 23174 Humboldt Hookton Rd., S end of Humboldt Bay 10 Comment
  SEINET3817862  Cotula coronopifolia Steve R. Johnson 1965-3-12 1 Humboldt 1 mile north of luffenholtz beach Comment
  JEPS49998  Crassula aquatica Joseph P. Tracy 1916-5-31 4705 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC581728  Crepis pleurocarpa Joseph P. Tracy 1933-8-30 13033 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC5436  Crepis pleurocarpa H. E. Parks, J. P. Tracy 1934-6-27 11037 Humboldt Horse Mtn. Comment
  UC581741  Crocidium multicaule Joseph P. Tracy 1933-5-21 12212 Humboldt McClellan Mountain Northern Coast ranges, McClellan Mountain 822 Comment
  UC1364266  Crocosmia X crocosmiiflora T. C. Fuller 1968-7-30 17446 Humboldt 1 mi s Fields Landing (nw corner of overpass of Hwy 101 freeway to Garberville) Comment
  UC1239663  Cryptantha affinis Joseph P. Tracy 1939-8-5 16386 Humboldt Dinsmore's 737 Comment
  HSC82604  Cryptogramma acrostichoides Thomas W. Nelson 1979-7-11 4990 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  CAS-BOT-BC224392  Cuscuta californica Joseph P. Tracy 1949-8-4 18407 Humboldt Trinity Summit. Mud Springs 1341 Comment
  HSC36310  Cuscuta salina Karen Burgessen 1973-5-30 Humboldt Near Humboldt Bay at oxidation ponds Comment
  UC203976  Cuscuta suaveolens Joseph P. Tracy 1918-9-29 5113 Humboldt 8 mi above mouth of the South Fork of Eel River (Myers Ranch); Northern Coast Ranges, South Fork of Eel River 60 Comment
  UC562482  Cuscuta subinclusa Joseph P. Tracy 1930-8-3 9151 Humboldt nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  JEPS14218  Cymopterus terebinthinus var. californicus Joseph P. Tracy 1929-6-3 8600 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC34970  Cynoglossum grande Thomas W. Nelson 1975-5-24 1877 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UCR45822  Cynosurus echinatus Kenneth Clark 1980-4-18 579 Humboldt North Coast, Shelter Cove, on access trail to Dead Man's Gulch 122 Comment
  CAS-BOT-BC114369  Cyperus erythrorhizos Henry M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  CAS-BOT-BC113831  Cyperus niger var. capitatus Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  UC14956  Cypripedium montanum Mrs. M. H. Manning may, 1901 16 Humboldt near Hupa Comment
  UC201998  Cypripedium montanum Joseph P. Tracy 1918-5-26 4937 Humboldt Redwood Creek Northern Coast Ranges, Grouse Mt. (at foot of mountain) 609 Comment
  HSC74131  Cystopteris fragilis R. York 1980-5-23 613 Humboldt Near Buck Mtn. 1524 Comment
  UC275410  Cystopteris fragilis Joseph P. Tracy 1925-11-25 7325 Humboldt near S Fork Trinity River Valley; Northern Coast Ranges 182 Comment
  CDA4057  Cytisus scoparius T. C. Fuller 1961-3-22 5940 Humboldt North slope, Humboldt Hill, Eureka. 0 Comment
  HSC10935  Dactylis glomerata Paul Shields Nov 1954 Humboldt Humboldt State campus. Comment
  HSC9540  Dactylis glomerata E. W. Styskel 1964-4-12 64 Humboldt Corner of Center Street and Hwy. 101 in Rio Dell. Comment
  CAS-BOT-BC189733  Danthonia californica Henry M. Pollard 1948-7-29 s.n. Humboldt Woodson Mine near Orleans. Comment
  HSC9553  Danthonia californica J. A. Waller 1965-5-22 45 Humboldt Kneeland area. Comment
  SEINET10598246  Danthonia californica Joseph P. Tracy 1912-6-9 Tracy 3650 Humboldt Alton, common on open slopes. 30 Comment
  RSA10087  Danthonia californica var. californica Joseph P. Tracy 1930-7-10 8860 Humboldt Brannan Mountain 1220 Comment
  RSA520566  Datisca glomerata M. Hanson 1990-5-22 84 Humboldt In the Trinity River, 75 meters E of the Hwy 96 bridge N of Hoopa. Comment
  HSC38880  Daucus carota J. P. Smith 1971-10-9 4991 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  SEINET4465020 Image available Delphinium decorum H. E. Parks, J. P. Tracy 1930-1 789 Humboldt Laribee Valley 914 Comment
  CAS-BOT-BC9033  Delphinium decorum subsp. tracyi Doris K. Kildale 1928-4-29 5963 Humboldt Horse Mountain 853 Comment
  HSC34963  Delphinium decorum subsp. tracyi Thomas W. Nelson 1975-5-24 1861 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC97582  Delphinium decorum subsp. tracyi Cara Witte 2007-5-23 105 Humboldt Near Grouse Mtn. Along 4N32. Approximately 0.5 mi. S of intersection with 5N04 and 4N32E. 1398 Comment
  RSA68806  Delphinium decorum subsp. tracyi Joseph P. Tracy 1932-7-12 10486 Humboldt Head of Brett Hole 1829 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
  HSC36240  Delphinium decorum subsp. tracyi John Rehling 1975-5-12 71 Humboldt Bald Hills Area, 2 mi. up Williams Ridge Rd. Comment
  HSC96221  Delphinium decorum subsp. tracyi Eric Schori, Kazuyuki Ishimaru 2005-6-3 2 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment
  UC1196321  Delphinium decorum subsp. tracyi Joseph P. Tracy 1908-6-9 2649 Humboldt open places near hilltops Northern Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC10312  Delphinium hesperium Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UC183707  Delphinium hesperium subsp. hesperium Joseph P. Tracy 1912-6 3665 &3672 Humboldt Alton Northern Coast Region 30 Comment
  HSC98907  Delphinium nudicaule Cara Witte 2007-5-23 106 Humboldt Near Grouse Mtn. Along 4N32. Approximately 0.5 mi. S of intersection with 5N04 and 4N32E. 1398 Comment
  UC249530  Delphinium nudicaule Joseph P. Tracy 1922-4-30 6012 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC9957  Delphinium nudicaule Duart V. Brown 1947-4-2 28 Humboldt Near Sweed Creek, Trinity River Comment
  HSC95789  Delphinium nudicaule Kevin Thomas 2004-3-28 9 Humboldt Horse Linto Creek Campground Comment
  RSA168928  Delphinium nudicaule Joseph P. Tracy 1950-6-15 18815 Humboldt Mail Ridge, north of Harris 7 miles Comment
  UC1225744  Delphinium nudicaule Joseph P. Tracy 1946-6-15 17565 Humboldt lower slopes Horse Mountain 1066 Comment
  CAS-BOT-BC121962  Delphinium trolliifolium Doris K. Kildale 1928-5-15 6018 Humboldt Bug Creek, Chaparral Mountain 914 Comment
  UC1196343  Delphinium trolliifolium Joseph P. Tracy 1908-6 2774 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC46068  Delphinium trolliifolium William J. Ferlatte, B. D. Rogers 1966-6-15 2101 Humboldt Plympton Ranch 915 Comment
  RSA32276  Delphinium trolliifolium H. C. Cantelow 1941-4-19 s.n. Humboldt 8.4 miles SW of Ferndale Comment
  UC1196335  Delphinium trolliifolium Joseph P. Tracy 1946-6-15 17562 Humboldt foothills of Horse Mountain 1066 Comment
  CAS-BOT-BC194290  Deschampsia cespitosa subsp. cespitosa Doris Kildale 1931-5-10 10679 Humboldt Snow Camp Comment
  HSC37771  Deschampsia cespitosa subsp. holciformis D. E. Anderson, J. P. Smith 1971-6-14 - 1040 Humboldt Along railroad tracks at P.G.&E. power plant S of Eureka. Comment
  HSC98587  Deschampsia danthonioides Cara Witte 2008-7-16 921 Humboldt Mud Lake. Off National Forest 1, near Buck Flat. 1569 Comment
  HSC98610  Deschampsia danthonioides Cara Witte 2008-8-6 1004 Humboldt Board Camp Mountain; 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 Comment
  UC552716  Deschampsia danthonioides Joseph P. Tracy 1935-6-23 13969 Humboldt French Camp Ridge 1066 Comment
  HSC13422  Deschampsia elongata D. C. Juve 1964-5-16 37 Humboldt Campbell Creek Ranger Station, Camp Tish-Tang, Hwy 96. Comment
  RSA126941  Deschampsia elongata H. S. Yates 1936-6-17 5706 Humboldt Lower northwest slope of Buck Mountain 793 Comment
  UC526671  Deschampsia elongata Joseph P. Tracy Jul 16 1930-Jul 19 1930 9092 Humboldt S. Fork Mt. near McKay Camp Northern Coast Ranges, S. Fork Mt. 1676 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
  UC146101  Dicentra formosa J. P. Tracy 1903-8-4 1928 Humboldt immediate vicinity Eureka 0 Comment
  UC146102  Dicentra formosa J. P. Tracy 1904-4-17 2013 Humboldt immediate vicinity Eureka 0 Comment
  SEINET200955 Image available Dichanthelium acuminatum subsp. fasciculatum Joseph P. Tracy 1942-6-15 17153 Humboldt Moist place on grassy bench 1/2 miles NE of Garberville Comment
  UC1198163  Dichelostemma congestum Joseph P. Tracy 1914-5-14 4446 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  HSC3035  Dichelostemma ida-maia Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  CAS-BOT-BC501024  Dichelostemma ida-maia Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC3027  Dichelostemma ida-maia H. E. Parks, S. T. Parks Jun 1928 259 Humboldt Gills 305 Comment
  JEPS5685  Dichelostemma ida-maia Joseph P. Tracy 1923-7-4 6524 Humboldt Northern Coast Ranges, valley of S. Yager Creek 762 Comment
  RSA70148  Dichelostemma ida-maia F. W. Peirson 1926-7-12 7030 Humboldt W slope of Coast Range back of Orick. Comment
  UC1198181  Dichelostemma ida-maia Joseph P. Tracy 1947-5-10 17684 Humboldt Miranda South Fork of Eel River 121 Comment
  UC13825  Dichelostemma multiflorum Harley P. Chandler Jun 1901 1310 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC69691  Digitalis purpurea R. Kalal 1980-5-18 24 Humboldt Hwy. 101, 0.5 mi. W of Orick 6 Comment
  UC198610  Digitalis purpurea Joseph P. Tracy 1917-5-30 4790 Humboldt Dows Prairie Comment
  CAS-BOT-BC150342  Diplacus aurantiacus C. L. Hitchcock; J. S. Martin 1939-7-14 5439 Humboldt At Shelter Cove Comment
  CAS-BOT-BC153234  Diplacus kelloggii John Cromwell; Julie Schneider; Audie Thoele 1994-3-19 5 Humboldt Hell's Half Acre, trailhead located about 12 miles South of South Fork Road off of Hwy. 299 457 Comment
  CAS-BOT-BC153324  Diplacus layneae Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  SEINET5741149 Image available Dipsacus fullonum Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6110 Humboldt In a waste area along Giuntoli Lane in Arcata. Adjacent to Eureka Sand and Gravel Company and across the road from T. P. Tire Service (1265 Giuntoli Lane).; Arcata Comment
  RSA1510  Disporum smithii E. R. Johnson 1929-08 1414 Humboldt Arcata Redwood Park 76 Comment
  RSA168933  Disporum smithii Joseph P. Tracy 1951-6-14 19418 Humboldt Snow Camp. 1402 Comment
  RSA183538  Disporum smithii H. S. Logsdon 1964-5-10 2 Humboldt 4.0 miles N.E. of Orick at Boye s Prairie Comment
  HSC90953  Distichlis spicata Leonel Arguello 1989-7-15 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, Saltmarsh trail. Comment
  UC573991  Distichlis spicata H. S. Yates 1936-6-23 5859 Humboldt 1 mile W. of Bayside Comment
  HSC17907  Dodecatheon alpinum W. K. Parks Jul 1933 1374 Humboldt S Fork Mtn. Comment
  UC562749  Dodecatheon alpinum Joseph P. Tracy 1932-7-14 10565 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  HSC17861  Dodecatheon hendersonii R. A. Rasp 1964-4-5 26 Humboldt 5 mi. N of Hoopa on Willow Creek Rd. Comment
  HSC98690  Dodecatheon hendersonii subsp. hendersonii Cara Witte 2008-6-9 702 Humboldt Off National Forest 1, near Board Camp Mountain. Approximately 4 miles south of Brays Opening and 1/2 mile west of the road. 1506 Comment
  UC1222160  Downingia bacigalupii Joseph P. Tracy with Mr. Murphy 1951-6-26 19583 Humboldt Upper Twin Lakes Comment
  UC1243950  Downingia elegans Joseph P. Tracy 1947-6-28 17748 Humboldt Larrabee Valley 731 Comment
  UC552293  Draba verna Joseph P. Tracy 1935-4-5 13772 Humboldt near Blue Lake (along Mad River); , near Blue Lake 15 Comment
  UC1115832  Draba verna Joseph P. Tracy 1939-5-14 16294 Humboldt Dinsmore's along Van Duzen River, Dinsmore's 746 Comment
  CAS-BOT-BC401537  Drosera rotundifolia Doris K. Kildale 1929-8-5 8772 Humboldt Big Lagoon Comment
  HSC49811  Drosera rotundifolia R. York 1979-4-13 227 Humboldt Big Lagoon Bog. Comment
  UC585624  Drymocallis glandulosa Joseph P. Tracy 1935-5-25 13899 Humboldt Dobbyn Creek 152 Comment
  JEPS44246  Drymocallis lactea var. austiniae W. L. Jepson 1902-7-24 2113 Humboldt Trinity Summit Trinity Summit (on summit) 2133 Comment
  HSC76237  Drymocallis lactea var. lactea Teresa Prendusi 1981-7-21 271 Humboldt Near Whiteys Peak 1646 Comment
  SFV7745  Dysphania botrys T. Gordon, K. Kimbrough 1975-8-22 1225 Humboldt Eel River. 61 Comment
  UC1145168  Echinochloa crus-galli Joseph P. Tracy 1938-8-14 16115 Humboldt Trinity River Valley near the South Fork 182 Comment
Read comments
Jul 18 2012
  CAS-BOT-BC113646  Eleocharis acicularis LeRoy Abrams 1916-7-18 6095 Humboldt Lagoon back of dunes. Arcata to Trinidad. Comment
  CHSC68427  Eleocharis macrostachya L. P. Janeway 1983-9-24 701 Humboldt 10-30 ft from water line of Big Lagoon, near southwest corner of the county campground. 3 Comment
  CAS-BOT-BC112841  Eleocharis macrostachya Henry M. Pollard 1945-8-27 s.n. Humboldt Pond near Harley place. Comment
  CAS-BOT-BC113168  Eleocharis palustris Joseph Prince Tracy 1934-7-14 13400 Humboldt Blue Lake, along Mad River 15 Comment
  CAS-BOT-BC113206  Eleocharis parishii Doris K. Kildale 1927-7-3 3664 Humboldt Willow Creek Flat, swampy outflow from spring. Comment
  UC212885  Elymus X hansenii Joseph P. Tracy 1919-9-23 5279 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  SEINET201036  Elymus elymoides subsp. brevifolius Joseph P. Tracy 1919-9-23 5279 Humboldt Trinity Summit 1829 Comment
  UC552794  Elymus elymoides subsp. elymoides Joseph P. Tracy 1935-7-23 14134 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC37236  Elymus glaucus Lon Hall 1975-6-19 394 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  HSC40394  Elymus glaucus Thomas W. Nelson, Jane P. Nelson 1976-7-26 3036 Humboldt Along ridge NW of Lassic Peak. 1707 Comment
  HSC71508  Elymus glaucus M. A. Baker 1980-6-26 2466 Humboldt Near Sims Creek 610 Comment
  RSA10138  Elymus glaucus Joseph P. Tracy 1926-6-20 7652 Humboldt Horse Mountain 1402 Comment
  UC1103207  Elymus glaucus J. P. Tracy 1901-6-16 1143 Humboldt Immediate vicinity of Eureka 0 Comment
  UC526797  Elymus glaucus Joseph P. Tracy 1925-7-5 7167 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UCD62285  Elymus glaucus R. Tofsrud 1947-6-28 192 Humboldt Honeydew school. Comment
  HSC72676  Elymus multisetus J. P. Smith 1977-7-3 9256 Humboldt Six Rivers National Forest. FS Rd. 13N01, 3 mi. from its junction with Hwy. 36 549 Comment
  HSC73480  Elymus multisetus Gail Newton 1980-7-11 1327 Humboldt Near Red Mtn. 1341 Comment
  CAS-BOT-BC204330  Elymus trachycaulus subsp. trachycaulus David D. Keck 1948-7-1 5969 Humboldt South side of Big Lagoon Comment
  HSC49812  Empetrum nigrum R. York 1979-4-13 220 Humboldt Elks Head, 1 mi. N of Trinidad 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
  UC144087  Epilobium brachycarpum Joseph P. Tracy 1900-9-9 946 Humboldt gravel bar on creek Northern Coast Region, Yager Creek (near Hydesville) 60 Comment
  UC198621  Epilobium brachycarpum Joseph P. Tracy 1917-9-3 4855 Humboldt Janes Ranch Northern Coast Ranges, Grouse Mt. (lower w slopes) 914 Comment
  UC198622  Epilobium brachycarpum Joseph P. Tracy 1917-9-3 4854 Humboldt Janes Ranch Northern Coast Ranges, Grouse Mt. (lower w slopes of mt.) 914 Comment
  JEPS31510  Epilobium campestre Joseph P. Tracy 1938-7-5 16010 Humboldt open flat by old Strong's District School House (5 mi e of town); Carlotta 45 Comment
  HSC54011  Epilobium ciliatum subsp. ciliatum Griswold, Butler 1979-7-12 7141 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1122558  Epilobium ciliatum subsp. ciliatum H. L. Person 1932-7-16 Humboldt hwy n Trinidad; Rock Point Quadrangle Comment
Read comments
Aug 3 2007
  UC146137  Epilobium ciliatum subsp. ciliatum J. P. Tracy 1909-7-4 3004 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC98622  Epilobium ciliatum subsp. glandulosum Cara Witte 2007-7-25 584 Humboldt Forest Service Road 6N08. Friday Ridge Road. 1/4 mile east of intersection with 5N10. 1237 Comment
  SEINET9075566 Image available Epilobium ciliatum subsp. watsonii Robert F. Thorne, P. Everett 1965-1 35201 Humboldt Samoa Peninsula 0 Comment
  JEPS31516  Epilobium densiflorum Joseph P. Tracy 1934-7-9 13352 Humboldt bed of dry pond Dobbyn Creek 152 Comment
  UC902169  Epilobium densiflorum Joseph P. Tracy 1946-8-25 17644 Humboldt Alton to Fortuna (on gravel bars); Eel River 15 Comment
  UC1198503  Epilobium densiflorum Joseph P. Tracy 1911-7-11 3509 Humboldt mouth of Supply Creek Northern Coast Ranges, Hoopa Valley 152 Comment
  JEPS31498  Epilobium glaberrimum subsp. glaberrimum Joseph P. Tracy 1936-8-7 15102 Humboldt head of Little Hors-Linto Creek Trinity Summit 1524 Comment
  UC630642  Epilobium hallianum Joseph P. Tracy 1939-5-30 16302 Humboldt on river opposite Buck Mountain; Northern Coast Ranges, Van Duzen River, Dinsmore's Ranch 670 Comment
  UC1197013  Epilobium hornemannii subsp. hornemannii Joseph P. Tracy 1932-7-17 10689 Humboldt head of Devil's Hole Klamath Mountains, Trinity Summit 1828 Comment
  HSC31196  Epilobium minutum D. E. Anderson 1972-6-20 5747 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC67369  Epilobium minutum Thomas W. Nelson, James Nelson 1980-6-10 5412 Humboldt Along Swayback Ridge Rd. 2.5 mi. N of junction of Rd. 1S07 1463 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
  SEINET200786  Epilobium septentrionale Frank C. Gregory 1921-10-1 Humboldt Along SOuth Fork of Trinity River some 10 mi above the mouth 305 Comment
  POM301295  Epipactis gigantea Joseph P. Tracy 1949-7-7 18335 Humboldt Blue Slide, on Van Duzen River 91 Comment
  UC845344  Epipactis gigantea Ira L. Wiggins 1930-7-8 4677 Humboldt cliffs along river near Scotia; Eel River Comment
  HSC61024  Equisetum arvense Jimerson, J. Pageau 1979-8-10 723 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  RSA44366  Eragrostis pectinacea Henry M. Pollard 1947-8-30 s.n. Humboldt Near Wilson Creek, on Klamath River, (near Orleans) Comment
  HSC34983  Erechtites glomeratus Thomas W. Nelson 1974-9-13 1710 Humboldt King Salmon area Comment
  SD40100  Erechtites prenanthoides Edith A. Purer 1932-7-30 4684 Humboldt South of Orick Comment
  HSC98862  Eremogone congesta var. congesta Cara Witte 2008-7-30 961 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1589 Comment
  CHSC102880  Erica lusitanica Peter F. Zika 2008-10-19 24226 Humboldt North Coast. Thickets on w-facing banks above highway, E side of Route 101, near Exit 731 for Seawood Drive. 100 Comment
  UC1792475  Erigeron Thomas W. Nelson, Sydney Carothers 2004-6-18 9253 Humboldt Board Camp Mountain Road 49N38 1 mile from junction with Forest Service Road 1. 1481 Comment
  RSA46777  Erigeron Doris Kildale Gillespie 1937-8-26 15345 Humboldt Christmas Prairie. Comment
  OBI16523  Erigeron aliceae Joseph P. Tracy 1949-8-11 18487 Humboldt Near the C.M. Preston place, 1-1/2 mi SE of Snow Camp 1463 Comment
  JEPS41418  Erigeron biolettii W. L. Jepson 1932-8-6 16493 Humboldt Garberville Comment
  CAS-BOT-BC33468  Erigeron breweri var. klamathensis Joseph Prince Tracy 1937-7-24 15515 Humboldt Trinity Summit, 2 miles SE of Devil's Hole 1584 Comment
  UCSC000772  Erigeron canadensis H. L. Person 1932-8-15 s.n. Humboldt Eureka, Korbel Comment
  CAS-BOT-BC296109  Erigeron foliosus var. confinis Marcus E. Jones 1931-7-16 29131 Humboldt Junction east of Arcata Comment
  JEPS11982  Erigeron foliosus var. confinis Rimo Bacigalupi with G. T. Robbins 1954-6-28 4653 Humboldt 4.6 mi s Weitchpec, Hoopa Valley Indian Reservation (between Hoopa Valley and Weitchpec, along highway, high above Trinity River); Trinity River 167 Comment
  UC581721  Erigeron foliosus var. mendocinus Joseph P. Tracy 1931-5-17 9433 Humboldt near Willow Creek; Trinity River 152 Comment
  CAS-BOT-BC308076  Erigeron glaucus J. P. Tracy 1900-7-4 888 Humboldt Samoa, opp. Eureka Comment
  HSC102241  Erigeron inornatus var. inornatus Sydney Carothers 2011-9-17 Humboldt Bret Hole; 1.1 km SW of Trinity Summit 1579 Comment
  HSC70979  Erigeron klamathensis Gail Newton 1980-7-22 1667 Humboldt Near Devils Backbone 1554 Comment
  CAS-BOT-BC214592  Erigeron philadelphicus Henry M. Pollard 1948-7-19 s.n. Humboldt Orleans to Van Fleet ranch Comment
  HSC100375  Erigeron robustior D. Decker 2010-7-28 Humboldt Buck Project, Dinsmore. 976 Comment
  CAS-BOT-BC300290  Erigeron supplex Dr. A. Kellogg; W. G. W. Harford 1868-1-1 382 Humboldt Unspecified Comment
  HSC13527  Eriodictyon californicum P. J. Zinke 1950-10-9 182 Humboldt E slope of King Peak 1159 Comment
  HSC97965  Eriogonum compositum var. compositum Cara Witte 2007-6-20 308 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  CAS-BOT-BC259163  Eriogonum latifolium Carl B. Wolf 1937-9-12 9331 Humboldt Clam Beach 7 Comment
  RSA89772  Eriogonum latifolium P. A. Munz 1954-7-25 19870 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  CAS-BOT-BC259528  Eriogonum luteolum var. luteolum Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Comment
  UC1198143  Eriogonum nudum var. auriculatum Joseph P. Tracy 1938-6-17 15961 Humboldt s point of Cape Mendocino; Cape Mendocino 3 Comment
  UC1198147  Eriogonum nudum var. nudum Joseph P. Tracy 1948-8-8 18094 Humboldt near school house; Iaqua 609 Comment
  UC1222336  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1950-9-22 19373 Humboldt Slate Creek Comment
  HSC38618  Eriogonum nudum var. pubiflorum D. E. Anderson, J. P. Smith 1971-6-21 1113 Humboldt 5.2 mi. E of the bridge over Eel River at Alderpoint, near Humboldt-Trinity county line Comment
  UC14096  Eriogonum roseum Chesnut and Drew 1888-7-25 Humboldt Hy-Am-Pum Comment
  HSC5610  Eriophyllum lanatum H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  HSC44132  Eriophyllum lanatum var. achilleoides Thomas W. Nelson, Jane P. Nelson 1977-7-4 3586 Humboldt Along W side of road N of Alder Springs, head of N Fork of Conley Creek 1280 Comment
  JEPS34585  Eriophyllum lanatum var. achilleoides Chestnut and Drew 1888-7-12 Humboldt Jarnigans Comment
  POM288402  Eriophyllum lanatum var. grandiflorum Lyman Benson 1929-7-14 1801 Humboldt Weott Ranger Station, South Fork Eel River. Comment
  UC582675  Eriophyllum lanatum var. lanceolatum Joseph P. Tracy 1933-8-6 12936 Humboldt French Camp Ridge 1066 Comment
  HSC35083  Eriophyllum staechadifolium Rudolf W. Becking, Thomas Overturf 1974-9-1 Humboldt S of the mouth of the Mattole River Comment
  POM358117  Eriophyllum staechadifolium Lester Rowntree 1931-7-18 s.n. Humboldt Near Petrolia Comment
  UC1198963  Erodium botrys Joseph P. Tracy 1913-6-27 4353 Humboldt McClellan Mt., on the Sweasey place Northern Coast Ranges 609 Comment
  HSC26295  Erodium moschatum T. O. Osborne 1970-9-16 40 Humboldt Blank Rock, 1/4 mi. W Trinidad Head Comment
  CAS-BOT-BC41575  Erysimum capitatum Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mountain. 1371 Comment
  UC10525  Erysimum capitatum J. Burtt Davy 1899-6-9 5365 Humboldt n Harris; North Coast Ranges, Chamise Ridge Comment
  CAS-BOT-BC54919  Erysimum menziesii Joseph P. Tracy 1904-4-24 2031 Humboldt Ocean Beach at Humboldt Bay. Comment
  HSC44353  Erythronium californicum Brad Klipfel 1974-5-8 319 Humboldt Horse Mountain Comment
  CAS-BOT-BC504307  Erythronium californicum Doris K. Kildale 1928-5-1 5983 Humboldt MacLellan Mountain 914 Comment
  CAS-BOT-BC504308  Erythronium californicum Joseph P. Tracy 1938-6-13 15896 Humboldt Horse Mountain 1432 Comment
  RSA261455  Erythronium oregonum Suzanne May 1967-4-15 24 Humboldt Kneeland Road, 7 miles north of Bridgeville 213 Comment
  UC666963  Erythronium revolutum Joseph P. Tracy 1927-5-15 8064 Humboldt woods at head Pine Creek; Hoopa Mountain 1066 Comment
  CDA42403  Escallonia rubra R. Robison 2014-5-5 s.n. Humboldt Near Trinidad State Beach, east of park. 0 Comment
  UC184948  Eschscholzia californica Joseph P. Tracy 1912-7-21 3765 Humboldt Alton Northern Coast Region 30 Comment
  HSC16767  Eschscholzia californica D. E. Anderson 1962-7-14 2263 Humboldt Comment
  HSC16115  Eucalyptus globulus J. W. Bosworth 1965-5-14 51 Humboldt 1 mi. N of Fairhaven on Samoa Comment
  HSC58830  Eucephalus ledophyllus Overton, Butler 1979-8-2 12607 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC205151  Eucephalus tomentellus Joseph P. Tracy 1919-9-27 5304 Humboldt Mountain slopes along road between three Creeks and mouth of Willow Creek Willow Creek 914 Comment
  RSA93311  Eucephalus tomentellus R. S. Woglum 1938-8-28 1974 Humboldt Patrick Creek Comment
  JEPS20472  Euchiton sphaericus Joseph P. Tracy 1936-8-23 15162 Humboldt Carlotta 30 Comment
  UC604672  Euchiton sphaericus Joseph P. Tracy 1938-9-4 16142 Humboldt along new road to Hars LInto Creek; Trinity River Valley 243 Comment
  UC1199006  Euonymus occidentalis var. occidentalis Joseph P. Tracy 1920-6-26 5339 Humboldt near Sequoia Park Eureka; Northern Coast Ranges 0 Comment
  SEINET11850490  Eupatorium occidentale J. P. Tracy 1950-1 19223 Humboldt Friday Ridge 1219 Comment
  POM282192  Euphorbia lathyris Lyman Benson 1928-7-12 474 Humboldt Weott Ranger Station; Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  CAS-BOT-BC312209  Eurybia radulina Doris K. Kildale 1928-8-5 6266 Humboldt Bull Creek Flat, South Fork of Eel River Comment
  UC1173675  Eurybia radulina Joseph P. Tracy 1939-8-5 16380 Humboldt Dinsmores, Van Duzen River, opposite Buck Mt. Van Duzen River 762 Comment
  OBI10874  Fallopia sachalinensis T. C. Fuller 1968-7-30 17447 Humboldt NE side of Hwy 101 fwy overpass, Fields landing Comment
  HSC99867  Festuca californica Thomas W. Nelson, Jane P. Nelson 1976-7-1 2892 Humboldt Along ridge N of Bear Creek 1463 Comment
  UC53434  Festuca californica unknown 1896-6-9 Humboldt South Fork Mts. Northern Coast Ranges Comment
  CAS-BOT-BC278423  Festuca idahoensis Harley P. Chandler 1901-6-1 1366 Humboldt North Coast Ranges. Hupa Indian Reservation 304 Comment
  HSC70396  Festuca occidentalis M. A. Baker 1980-6-7 1808 Humboldt Near Brush Mtn. 1128 Comment
  RSA123495  Festuca occidentalis H. S. Yates 1936-6-17 5700 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  CAS-BOT-BC278962  Festuca rubra David D. Keck 1944-7-11 5490 Humboldt 3 mi. N.E. of Capetown 152 Comment
  UC187107  Festuca rubra Joseph P. Tracy 1900-7-4 890 Humboldt Humboldt Bay Northern Coast Region Comment
  UC1145205  Festuca subulata Joseph P. Tracy 1937-7-25 15541 Humboldt head of Little Hors-Linto Creek Trinity Summit, Little Hors-Linto Creek 1371 Comment
  HSC9949  Festuca subuliflora L. M. Malloy 1965-5-20 32 Humboldt Old county dump, 5 mi. from Arcata on Fickle Hill Rd. Comment
  POM126172  Festuca subuliflora Joseph P. Tracy 1900-5-22 801 Humboldt Immediate vicinity of Eureka. 0 Comment
  CHSC19723  Fragaria chiloensis Gary J. Stebbins 1970-2-22 11 Humboldt Patricks Point State Park. On ocean bluff. Comment
  RSA114996  Fragaria chiloensis E. K. Balls, Lee W. Lenz 1955-5-15 20737 Humboldt 12.6miles SW of Ferndale along Old Coast road to Capetown 259 Comment
  UC1198727  Fragaria chiloensis J. P. Tracy 1900-6-5 851 Humboldt immediate vicinity of Eureka (at Bucksport) 0 Comment
  RSA296728  Fragaria chiloensis J. P. Smith 1977-6-30 9205 Humboldt Samoa Peninsula just east of the drag strip. Comment
  HSC45402  Fragaria vesca Thomas W. Nelson, Jane P. Nelson 1977-6-19 3510 Humboldt Alder Springs 1524 Comment
  CAS-BOT-BC457924  Fragaria vesca subsp. californica Doris K. Kildale 1927-4-17 3100 Humboldt Briceland Bridge, 1/2 mi. west of Garberville. 114 Comment
  BLMAR152  Frangula californica subsp. californica Donald Hazlett 1994-6-7 152 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC52730  Frangula californica subsp. californica Doris K. Kildale 1928-10-7 6754 Humboldt Trinity River at mouth of Willow Creek Comment
  CAS-BOT-BC52737  Frangula californica subsp. californica Carl B. Wolf 1927-8-30 1226 Humboldt 2 mi. s. of Petrolia on the Matole River, near point where road crosses river. Comment
  HSC31511  Frangula purshiana Steve Selva, Roger Jensen 1974-8-21 29 Humboldt Redwood Forest across from Hwy. 101 entrance to Patrick's Point State Park Comment
  OBI36633  Frangula purshiana David J. Keil 1983-7-2 17306 Humboldt Ca. 10.5 mi E of jctn with US 101 along SR 299 Comment
  UCD112819  Frangula purshiana Linda M. Barker 1976-7-5 1648 Humboldt Lanphere-Christensen Dunes 3 miles west of Arcata. Comment
  HSC15541  Fritillaria affinis Elrid H. Spinas 1948-6-16 68 Humboldt Horse Mtn. Comment
  UC2029548  Fumaria capreolata Richard R. Halse 2013-3-28 8767 Humboldt Eureka, weed area by a Texaco station near 3543 Broadway St. (U.S. Highway 101) and its intersection with McCullens Ave. Comment
  HSC94159  Fumaria officinalis Gordon Leppig, Sylvia Leppig 2000-12-7 1523 Humboldt 7th and I St. just W of Post Office 6 Comment
  UC176062  Galium ambiguum subsp. ambiguum Joseph P. Tracy 1912-7-31 3913 Humboldt near summit Northern Coast Ranges, Buck Mountain 1676 Comment
  CHSC19947  Galium aparine M. S. Taylor 1975-3-25 427 Humboldt Between 11th and 12th Sts, at end of Citrus Ave, Chico. Comment
  HSC96241  Galium aparine Kaylea Eickhoff, Cara M. Witte 2005-6-3 3 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment
  JEPS25693  Galium aparine P. C. Hutchison 1961-5-22 2021 Humboldt US 299 5.4 mi ne Klamath River bridge at Weitchpec (10 mi sw of Orleans, w side of river); Klamath River Comment
  JEPS6702  Galium bolanderi Chesnut and Drew July 1888 Humboldt S. Fork Mt. Comment
  JEPS52823  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-7-9 3852 Humboldt 1/2 mi e Dinsmores (on Hwy 36) 731 Comment
  JEPS6494  Galium parisiense Joseph P. Tracy 1937-7-11 15421 Humboldt Garberville 152 Comment
  JEPS6496  Galium parisiense W. L. Jepson 1902-6 1981 Humboldt Hupa Comment
  HSC34701  Galium porrigens var. porrigens Thomas W. Nelson 1974-8-24 1702 Humboldt Weitchpec, under highway bridge over Klamath River Comment
  HSC39794  Galium trifidum Peter Sorensen 1976-8-8 Humboldt King Salmon 0 Comment
  JEPS6555  Galium trifidum var. pacificum Joseph P. Tracy 1934-7-2 13287 Humboldt mouth of river Little River 6 Comment
  HSC76185  Galium triflorum Overton, Butler 1979-7-24 9770 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  SEINET12335256  Galium triflorum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -278 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  HSC46966  Gamochaeta ustulata J. P. Smith, Thomas W. Nelson 1977-6-30 9213 Humboldt Samoa Peninsula just E of the drag strip. Comment
  UC1199354  Gamochaeta ustulata Joseph P. Tracy 1917-7-8 4828 Humboldt Kneeland Prairie Road 457 Comment
  HSC62874  Garrya elliptica J. M. DiTomaso 1979-5-20 1059 Humboldt Above College Cove at Elks Head, 1 mi. N of Trinidad. Comment
  SEINET10453481  Garrya elliptica Mary Susan Taylor 1982-10-24 Taylor 5181 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  HSC98881  Garrya fremontii Cara Witte 2008-7-2 800 Humboldt National Forest Road 1; 5 miles south of intersection with 5N04. Before cattle guard crossing. 1406 Comment
  UC1051597  Garrya fremontii Joseph P. Tracy 1948-9-12 18214 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  POM198468  Gastridium phleoides Le Roy Abrams 1916-7-11 6025 Humboldt Mouth of Grizzly Creek on Van Duzen River. Comment
  CAS-BOT-BC56267  Gaultheria ovatifolia Joseph P. Tracy 1939-7-9 16320 Humboldt Bald Mountain; at Lake Prairie 1066 Comment
  HSC103127  Gaultheria ovatifolia M. Mesler 2009-7-31 811 Humboldt South Fork Mtn. FS 1, 11.8 miles north of intersection with 4N12, just north of mile marker 34. 1486 Comment
  HSC47492  Gaultheria shallon Sheila Logan 1978-4-9 16 Humboldt Fieldbrook, 1/2 mi. E of McKinleyville on Murray Rd. 122 Comment
  HSC76367  Gaultheria shallon Teresa Prendusi 1981-7-23 357 Humboldt Near Black Mountain. 890 Comment
  RSA249502  Gaultheria shallon R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-5 35131 Humboldt Wailaki Recreation site. 518 Comment
  RSA257020  Gaultheria shallon Gary D. Wallace, Larry E. DeBuhr, G. Ansley Wallace 1972-5-22 1065 Humboldt Between Big Lagoon Co. Pk. and Hwy 101, south of Orick. 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
  UC21946  Gaultheria shallon unknown 1894-8-6 Humboldt Eureka Comment
  UCSB25031  Gaultheria shallon Keefe, Joseph 1967-7-8 Humboldt South edge of Big Lagoon, 20 miles north of Eureka 1 Comment
  HSC97985  Gayophytum diffusum subsp. parviflorum Cara Witte 2007-7-11 502 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  JEPS27602  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-7-26 12919 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC1196970  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9070 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC562500  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-7-26 12919 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC28184  Genista monspessulana Richard Curtis 1973-9-27 20 Humboldt Bayside cutoff between Eureka and Arcata. Comment
  HSC49910  Genista monspessulana Maralyn O'Meara 1973-2-9 124 Humboldt McKinleyville, N side of Mad River along N Bank Rd., 0.5 mi. E of Hwy. 101 Comment
  HSC12527  Gentiana sceptrum Wilbur Peterson 1970-10-17 54 Humboldt Big Lagoon Comment
  RSA21018  Gentiana sceptrum Carl B. Wolf 1937-9-12 9328 Humboldt Big Lagoon, south side along Redwood Highway. 6 Comment
  HSC8648  Geranium dissectum William J. Ferlatte 1963-5-17 51 Humboldt Waste place, near 11th and B St., Arcata Comment
  UC1541258  Geranium molle H. E. Parks, J. P. Tracy 1930-5-25 875 Humboldt Laribee Valley 762 Comment
  UC52485  Gilia capitata subsp. pacifica Joseph Burtt Davy and Walter C. Blasdale 1899-5 5561 Humboldt Alton Alton (Old river bluffs, North-Western California) Comment
  UC604650  Gilia capitata subsp. pacifica Joseph P. Tracy 1938-6-17 15962 Humboldt s of point Cape Mendocino (near ocean shore); s of point of Cape Mendocino 3 Comment
  UCR202330  Gilia millefoliata Peter L. Morrell 1993-6-9 280 Humboldt North Coast, Samoa Peninsula near Eureka, along Hwy 255, 1.5 miles south of Samoa intersection, west side of highway 7 Comment
  JEPS69508  Gilia sinistra subsp. sinistra Joseph P. Tracy 1926-6-27 7679 Humboldt Horse Mountain 1432 Comment
  UC231500  Gilia tricolor subsp. tricolor Joseph P. Tracy 1919-5-31 5144 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC23861  Gilia tricolor subsp. tricolor C. C. Marshall 1888-1 Humboldt Comment
  HSC44404  Githopsis specularioides R. York 1978-5-6 156 Humboldt 4 mi. W of Hwy. 96, on Bluff Creek Rd. 610 Comment
  JEPS158  Glehnia littoralis subsp. leiocarpa unknown 1925-7-29 109 Humboldt Samoa Comment
  UCD66777  Glyceria occidentalis A. A. Beetle; J. P. Tracy, G. L. Stebbins Jr. 1942-6-2 3461 Humboldt Loleta Swamp, south of Eureka. Comment
  UC195428  Glycyrrhiza lepidota Joseph P. Tracy 1915-9-12 4668 Humboldt Laribee Creek Northern Coast Ranges, Eel River (mouth, fields along river) 30 Comment
  RSA15558  Gnaphalium chilense var. confertifolium C. B. Wolf 1927-8-29 1223 Humboldt Seacoast, Devil's Gate, south of Cape Mendocino Comment
  HSC40378  Gnaphalium palustre Linda M. Barker 1976-8-2 1673 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  UC1408980  Gnaphalium palustre Robert F. Thorne and P. Everett 1965-8-7 35227 Humboldt Samoa Peninsula 3 Comment
  HSC103605  Gnaphalium palustre Thomas W. Nelson, Jane Nelson 1985-8-5 8000 Humboldt Eureka; along old logging road just east of Lundbar Hills. 46 Comment
  UCD132451  Gnaphalium palustre James Payne Smith Jr. 1976-10-30 8995 Humboldt Mad River, east of Essex Lane exit. Comment
  POM261473  Gnaphalium sphaericum Joseph P. Tracy 1940-8-11 16694 Humboldt Trinity River Valley near Raccoon Creek. 152 Comment
  HSC54227  Goodyera oblongifolia Griswold, Butler 1979-7-12 7293 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  IRVC21928  Goodyera oblongifolia J. W. Johnson Jul 1962 1075 Humboldt Base of the Samoa Peninsula in the Lamphere-Christensen Dunes Preserve. Comment
  UC582586  Gratiola ebracteata Joseph P. Tracy 1936-6-28 15022 Humboldt Bald Mountain , at Lake Prairie (at Lake Prairie) 1066 Comment
  CAS-BOT-BC304730  Grindelia hirsutula John Thomas Howell 1931-6-16 6713 Humboldt 5 miles south of Garberville Comment
  UC1199435  Grindelia hirsutula Joseph P. Tracy 1938-6-17 15955 Humboldt s point of Cape Mendocino Cape Mendocino (in exposed situations near ocean shore) 3 Comment
  UC204829  Grindelia hirsutula Joseph P. Tracy 1918-7-7 5038 Humboldt near Garberville (in dry field) 121 Comment
  POM160899  Grindelia hirsutula var. davyi Joseph P. Tracy 1918-7-7 5038 Humboldt Near Garberville. 122 Comment
  CHSC31291  Grindelia stricta var. stricta Mark Stopher 1980-7-11 113 Humboldt Elk River mitigation site, in lower portions of site and in marsh. 1 Comment
  POM318612  Grindelia stricta var. stricta Patricia Wilder 1968-8-21 4375 Humboldt Big Lagoon Park, just west of U.S. 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 15 Comment
  UC1239635  Hackelia californica Joseph P. Tracy 1936-8-8 15126 Humboldt on Ridge 2 mi e of Groves Prairie; Trinity Summit 1524 Comment
  UC1713302  Hackelia setosa Joseph P. Tracy 1937-7-25 15547 Humboldt Ridge 2 mi e of Grove's Prairie; Trinity Summit 1524 Comment
  RSA377548  Hastingsia alba Brad W. Klipfel 1973-7-1 116 Humboldt Along ridge trail south east of North Trinity Mountain 1829 Comment
  HSC52152  Helenium bigelovii Griswold, Butler 1979-7-11 7007 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  UC180187  Helenium bigelovii Joseph P. Tracy 1914-7-4 4540 Humboldt at Murphy Ranch, High Prairie on Bald Mountain Northern Coast Ranges, Bald Mountain 1066 Comment
  RSA246777  Helenium bolanderi R. F. Thorne, Percy C. Everett 1965-8-9 35286 Humboldt Big Lagoon. 3 Comment
  HSC102615  Hemieva ranunculifolia M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1602 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  RSA255765  Hemitomes congestum Gary D. Wallace, S. Carlquist, G. Ansley Wallace 1972-6-1 1108 Humboldt Prairie Creek Redwoods St. Pk., E. of Park HQ. 73 Comment
  HSC40554  Hemizonella minima Thomas W. Nelson, Jane P. Nelson 1976-5-23 2520 Humboldt SW facing slopes 1666 Comment
  HSC96210  Hemizonella minima J. McIntire, S. Lyon 2005-6-10 10 Humboldt Ca. 0.7 mi. due W of Spike Buck Mtn. off F.S. Road NF1 1610 Comment
  CAS-BOT-BC306080  Hemizonia congesta subsp. clevelandii H. E. Parks; J. P. Tracy 1930-5-25 0880 Humboldt Near Bridgeville Comment
  HSC1805  Hemizonia congesta subsp. tracyi William J. Ferlatte, B. D. Rogers 1966-6-15 2091 Humboldt Near Bridgeville Comment
  POM360349  Hemizonia congesta subsp. tracyi S. K. Harris 1936-6-20 699 Humboldt Above Van Duzen River about 1 mile west of Bridgeville Comment
  UC1173664  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1939-8-10 16400 Humboldt Kneeland Prairie 762 Comment
  UC175967  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1908-6-8 2629 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  RSA254780  Hemizonia tracyi Thomas W. Nelson 1973-5-28 967 Humboldt McKeown Ranch north of Dinsmore. Comment
  HSC55856  Heracleum maximum G. L. Clifton, Terry Griswold 1979-7-25 10845 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC1223122  Hesperevax acaulis var. robustior Joseph P. Tracy 1949-6-12 18312 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley 152 Comment
  UC275454  Hesperevax acaulis var. robustior Joseph P. Tracy 1925-5-17 6982 Humboldt near s fork Trinity River; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC169086 Image available Hesperevax sparsiflora var. brevifolia Joseph P. Tracy and Ernest B. Babcock 1912-5-12 3639 Humboldt Bucksport; Humboldt Bay 0 Comment
  UC1212422  Hesperolinon micranthum Joseph P. Tracy 1925-7-12 7202 Humboldt hillsides w of Trinity River Valley (near the South Fork); Northern Coast Ranges 304 Comment
  UC1541522  Heterocodon rariflorum H. E. Parks and J. P. Tracy 1934-6-27 11084 Humboldt Grouse Mountain Comment
  SEINET10460654  Heterocodon rariflorum Tracy TRACY 2831 Humboldt BUCK MTN. Comment
  HSC101543  Heterotheca oregona var. compacta J. P. Smith, J. O. Sawyer 2009-8-3 12643 Humboldt Along the Eel River. 23 Comment
  UC165075  Heterotheca oregona var. rudis Joseph P. Tracy 1908-6 2924 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC581756  Heterotheca oregona var. rudis Joseph P. Tracy 1930-7-27 9112 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  UC894670  Heterotheca oregona var. rudis Carl D. Duncan 1920-9-22 Humboldt Hoopa Valley Comment
  UC1222391  Heuchera merriamii Joseph P. Tracy July 1935 14172 Humboldt summit near Rangers Lookout at head of Croghan Hole; Trinity Summit 1828 Comment
  SEINET200860  Heuchera micrantha J. P. Tracy 2865 Humboldt Valley of Van Duzen River opposite Buck Mt 762 Comment
  UC902009  Heuchera micrantha var. macropetala Joseph P. Tracy 1948-8-15 18139 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  CAS-BOT-BC312391  Hieracium albiflorum Doris K. Kildale 1928-6-24 7078 Humboldt Redwood Creek at Berry's 289 Comment
  HSC67473  Hieracium albiflorum J. P. Smith, Steve Selva 1970-6-14 3834 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC67880  Hieracium albiflorum J. P. Smith 1973-5-26 6874 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC1199467  Hieracium albiflorum Joseph P. Tracy 1933-7-25 12831 Humboldt Horse Mountain 1432 Comment
  RSA595781  Hieracium albiflorum R. S. Woglum 1931-7-15 24 A Humboldt Outer Coast Ranges, Sequoia Park. Comment
  UC165196  Hieracium nudicaule Joseph P. Tracy 1909-8-1 3066 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC34196  Hieracium nudicaule Harley P. Chandler 1901-6-1 1489 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  HSC13454  Hippuris vulgaris D. E. Anderson 1965-10-25 4161 Humboldt Georgia-Pacific Co., N Big Lagoon Comment
  UCSB25052  Hippuris vulgaris Keefe, Joseph 1967-7-8 Humboldt east side of U.S. Highway 101, turnoff to Crannell Road; north of Eureka 6 Comment
  HSC6593  Hirschfeldia incana P. W. Shields 1955-9-29 Humboldt 0.5 mi. S of Fernbridge Comment
  HSC10134  Holcus lanatus R. D. Zortman 1963-4-14 27 Humboldt 5.0 mi. NE of Arcata, off Warren Creek Road. 91 Comment
  HSC38838  Holcus lanatus R. Sutherland 1976-8-6 19 .6876 Humboldt Briceland. 183 Comment
  HSC5261  Holcus lanatus John Warner Hosking 1966-8-5 Humboldt Near BSA, Humboldt State College campus, Arcata. Comment
  SACT001293  Holcus lanatus Lyle Bibb 1963-5-11 Humboldt Comment
  SD40095  Holcus lanatus Edith A. Purer 1932-7-30 4672 Humboldt South of Orick Comment
  SEINET200832 Image available Holcus lanatus J. P. Tracy 1901-7-24 1218 Humboldt Immediate vicinity of Eureka 0 Comment
  UCD81679  Holcus lanatus Chuck Hughes 2009-6-18 99 Humboldt Near Arcata. NE corner of intersection of Old Samoa Road and Pacheco Road. 1 Comment
  POM203237  Holcus lanatus M. S. Jussel 1931-5-2 s.n. Humboldt near Garberville Comment
  CDA25934  Holodiscus discolor J. R. Keck Jr. 1977-6-22 Humboldt Lighthouse Road south of Petrolia, Mattole River. 0 Comment
  HSC48817  Holodiscus discolor Brad Klipfel 1973-7-31 231 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC99588  Holodiscus discolor K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 253 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC666850  Holodiscus discolor Joseph P. Tracy 1933-8-30 13031 Humboldt Grouse mountain 1524 Comment
  UCSC000355  Holodiscus discolor H. L. Person 1932-6-25 s.n. Humboldt E. of Korbel Korbel - Eureka Comment
  UC1103747  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1927-7-16 8251 Humboldt mouth of Elk River 3 Comment
  UC187305  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1911-7-7 3392 Humboldt three mi nw of junction of Willow Creek with Trinity River (near Beese's Ranch); Northern Coast Ranges, Trinity River 914 Comment
  HSC37573  Hordeum vulgare J. D. Ackerman 1975-6-10 460 Humboldt 1 mi. N of Samoa Blvd. and Samoa bridge turnoff intersection. S of Manila. Comment
  UC1198713  Horkelia californica Joseph P. Tracy 1910-7-24 3159 Humboldt s side Humboldt Hill; Humboldt Bay 152 Comment
  CHSC97957  Horkelia tridentata subsp. flavescens April A. Allard; Gregory D. O'Connell 2005-6-24 16 Humboldt Roadside meadow. 1648 Comment
  UC183550  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1913-6-17 4163 Humboldt near summit (Buck Mountain); Northern Coast Ranges 1524 Comment
  HSC36321  Hosackia crassifolia Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1900 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  HSC96156  Hosackia crassifolia var. crassifolia Thomas W. Nelson, Jane P. Nelson 1987-6-11 8531 Humboldt Along F.S. Rd. 13N01, 18 mi. from junction with State Route 96 1067 Comment
  UCD106139  Hosackia oblongifolia A. Murphy 1951-6-25 s.n. Humboldt location unknown. 1402 Comment
  SEINET957087  Hosackia rosea H. E. Parks 1932-1 3698 Humboldt Bishop Pine Lodge, Trinidad. 61 Comment
  JEPS1632  Hydrophyllum fendleri var. albifrons Mary H. Manning 1901-6-25 Humboldt Trinity Summit; n Humboldt County Comment
  UC204110  Hydrophyllum tenuipes Joseph P. Tracy 1918-6-16 4954 Humboldt Eureka; Northern Coast Region 0 Comment
  JEPS1638  Hydrophyllum tenuipes Lincoln Constance 1934-5-26 650 Humboldt North Dyerville Flat grove near Founder's Tree (South Fork Eel River, Bull Creek Region); Bull Creek Region, South Fork Eel Riv 48 Comment
  HSC102581  Hypericum anagalloides M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1568 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC57965  Hypericum anagalloides G. L. Clifton, Griswold 1979-7-31 11676 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC183760  Hypericum formosum var. scouleri Joseph P. Tracy 1913-7 4362 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 30 Comment
  RSA60489  Hypericum mutilum John H. Thomas 1949-6-12 899 Humboldt Near Klamath River, 1/2 mile N of town of Orleans Comment
  CAS-BOT-BC401236  Hypericum perforatum Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  JEPS36538  Hypochaeris radicata Lincoln Constance 1934-5-31 762 Humboldt along n side Bull Creek (from w boundary of park to Grasshopper Peak Road, Squaw Creek Road); South Fork Eel River, Bull Creek Region, Bull Creek flat Comment
  UC1103805  Ionopsidium acaule Joseph P. Tracy 1933-3-12 10919 Humboldt Ferndale, St. Mary's Cemetery Ferndale; North Coast Ranges, , St. Mary's Cemetery 15 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
  UC1174761  Iris douglasiana L. W. Lenz and E. K. Balls 1951-5-8 16508 Humboldt 14.7 mi n Trinidad (Hwy 101) 6 Comment
  UC1193099  Iris longipetala P. Zinke 1950-10-11 188 Humboldt 4 mi se Punta Gorda; Lake Ridge 243 Comment
  HSC34872  Iris purdyi Thomas W. Nelson, James Nelson 1975-5-5 1781 Humboldt Beside Hwy. 101, 5 mi. S of Salmon Creek bridge Comment
  UC429165  Iris purdyi P. E. Goddard 1906-6 644 Humboldt above Bells (Eel River); Eel River Comment
  CAS-BOT-BC123369  Iris tenax subsp. klamathensis Lee W. Lenz 1953-5-13 18296 Humboldt along Klamath River, Orleans 121 Comment
  HSC49177  Iris tenuissima J. O. Sawyer 1977-4-23 2847 Humboldt Bluff Creek Campground Comment
  HSC96228  Iris tenuissima subsp. tenuissima Sara March, Gillian Levy 2005-6-10 7 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF1 1370 Comment
  HSC97561  Iris tenuissima subsp. tenuissima Cara Witte 2007-6-1 162 Humboldt Horse Mountain Botanical Area. Along Forest Service 6N38. 1311 Comment
  UC1222653  Isatis tinctoria Joseph P. Tracy 1950-8-20 19316 Humboldt w side at mouth of Salmon River, Klamath River Salmon River; Klamath River, Salmon River Comment
  UC1152073  Isolepis carinata Joseph P. Tracy 1948-5-31 17982 Humboldt 1/2 mi ne Garberville (on the road to Harris); ne of Garberville Comment
  JEPS63980  Isolepis setacea Joseph P. Tracy 1917-6-17 4817 Humboldt Salmon Creek Valley Northern Coast Ranges, Humboldt Bay, Salmon Creek Valley (around Humboldt Bay) 30 Comment
  HSC48793  Isolepis setacea Brad Klipfel 1974-5-11 342 Humboldt SW side of Big Lagoon Comment
  UC1196176  Isopyrum stipitatum Joseph P. Tracy 1922-5-29 6068 Humboldt valley at head of South Yager Creek; Northern Coast Ranges, head of South Yager Creek 762 Comment
  UC183780  Juncus bolanderi Joseph P. Tracy 1912-7-26 3826 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC38832  Juncus bolanderi R. Sutherland 1976-8-13 813876 Humboldt Whittemaore Grove at edge of forest 213 Comment
  UC1601711  Juncus bolanderi State Survey June 1867 6584 Humboldt Comment
Read comments
Jul 31 2010
  HSC13992  Juncus bufonius Paul Shields 1965-6-16 Humboldt HSC campus Comment
  HSC13998  Juncus bufonius C. B. Wolf 1927-8-22 780 Humboldt Big Lagoon Comment
  HSC40945  Juncus bufonius Linda M. Barker 1976-6-1 1551 Humboldt 3 mi. W of Arcata Comment
  UC1152115  Juncus bufonius Joseph P. Tracy 1930-10-19 9233 Humboldt near Alton; Eel River Comment
  HSC74173  Juncus confusus M. A. Baker 1980-7-22 3115 Humboldt Near Grogan Hole 1676 Comment
  BLMAR316  Juncus effusus subsp. pacificus Jennifer Anthony-Wheeler 2002-8-6 316 Humboldt King range, grwong at mattole beach behind dune 6 Comment
  SD51269  Juncus effusus subsp. pacificus Darley F. Howe 1961-8-2 Humboldt 8.5 miles east of Orick, on Bald Mounatin Road. 609 Comment
  RSA246804  Juncus ensifolius Robert F. Thorne, Percy C. Everett 1965-8-7 35174 Humboldt Big Lagoon. 2 Comment
  HSC104132  Juncus falcatus subsp. falcatus C. Sander 2007-8-24 33096 Humboldt Ma-le'l Dunes Cooperative Management Area. 8 Comment
  RSA246773  Juncus falcatus subsp. sitchensis Robert F. Thorne, Percy C. Everett 1965-8-7 35223 Humboldt Samoa Peninsula. 3 Comment
  UC1152091  Juncus falcatus subsp. sitchensis Joseph P. Tracy 1938-7-6 16019 Humboldt sw corner Big Lagoon Comment
  UC1196725  Juncus hesperius J. P. Tracy 1900-6-23 859 Humboldt immediate vicinity Eureka 0 Comment
  HSC99530  Juncus mertensianus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 194 Humboldt Near North Trinity Mtn, along trail to Water Dog Lakes, Six Rivers National Forest. 1738 Comment
  HSC57985  Juncus occidentalis G. L. Clifton, Terry Griswold 1979-7-31 11720 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC249746  Juncus occidentalis Joseph P. Tracy 1923-6-19 6295 Humboldt Upper Mattole Valley Northern Coast Ranges 152 Comment
  JEPS67092  Juncus occidentalis Joseph P. Tracy 1926-7-5 7724 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  CHSC102932  Juncus patens Peter F. Zika 2007-7-30 23329 Humboldt North Coast, NCo. Above E side of Route 101, at high point between Stone and Big Lagoons. 80 Comment
  UC1152148  Juncus phaeocephalus var. paniculatus Joseph P. Tracy 1938-7-24 16086 Humboldt corner of Pacific and A Streets Eureka Comment
  SEINET10796051 Image available Juncus tenuis Unknown 1883-1 Rattan s.n. Humboldt Comment
  SEINET11788655  Juncus xiphioides J. P. Tracy 1938-1 16171 Humboldt Lake Prairie Comment
  OBI14464  Kalmia polifolia Joseph P. Tracy 1942-6-23 17262 Humboldt Local at "Water Dog lakes" Comment
  CAS-BOT-BC237832  Keckiella lemmonii Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  CAS-BOT-BC273597  Koeleria pyramidata Harley P. Chandler 1901-6-1 1342 Humboldt North Coast Ranges. Hupa Indian Reservation 304 Comment
  CAS-BOT-BC273598  Koeleria pyramidata Harley P. Chandler 1901-6-1 1342 Humboldt North Coast Ranges. Hupa Indian Reservation 304 Comment
  UC1196128  Kopsiopsis strobilacea Joseph P. Tracy Jul 16-19, 1930 9030 Humboldt Northern Coast Ranges. South Fork Mountain, along summit near Blake lookout. 1706 Comment
  CAS-BOT-BC340318  Kyhosia bolanderi Doris K. Kildale 1925-8-16 1180 Humboldt Trinity Summit. Elk Horn Prairie 1524 Comment
  HSC89711  Lamium purpureum Larry Levine, Manuel Pachero, Ben Murphey 1989-2-24 1 Humboldt HSU campus, garden plot SW of Buckhouse 40 Comment
  UCD106234  Lathyrus japonicus var. maritimus B. Clark 1927-9-1 s.n. Humboldt Along R.R. track near Eureka. Comment
  HSC15522  Lathyrus littoralis Gary J. Stebbins 1970-4-18 70 Humboldt Along road to Samoa 1.1 mi. S of Mad River slough bridge Comment
  HSC14753  Lathyrus palustris J. P. Tracy 1907-7-20 2593 Humboldt Near Samoa Comment
  UC162840  Lathyrus polyphyllus Joseph P. Tracy Jun 27 1908-Jun 30 1908 2731 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC495708  Lathyrus polyphyllus Joseph P. Tracy 1932-7-20 10735 Humboldt just w Corral Prairie; Klamath Mountains 1524 Comment
  UC198654  Lathyrus torreyi Joseph P. Tracy 1917-5-30 4786 Humboldt Dows Prairie Northern Coast Region 60 Comment
  HSC103352  Lathyrus vestitus var. ochropetalus Thomas W. Nelson, Jane Nelson 1983-6-12 7407 Humboldt Along Kneeland Rd., ~ .5 mi. SE of junction with Maple Creek Rd. 671 Comment
  UC168987  Lathyrus vestitus var. vestitus Joseph P. Tracy 1912-8-3 3971 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CDA24488  Laurus nobilis Gordon Leppig 2000-4-12 1289 Humboldt Arcata, 13th and Union. Comment
  CAS-BOT-BC325929  Layia carnosa Joseph P. Tracy 1932-5-16 10106 Humboldt Sand dunes near Samoa, on Humboldt Bay. Comment
  BLMAR61  Layia carnosa Jennifer Anthony-Wheeler 1994-3-31 61 Humboldt King range, Matole beach South of campground 12 Comment
  POM318849  Ledum glandulosum subsp. columbianum Patricia Wilder 1968-8-21 4385 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  CHSC33025  Lepidium didymum James P. Smith 1973-5-26 6876 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Railroad right-of-way. Comment
  UCD115346  Lepidium didymum Lincoln Constance 1934-6-18 902 Humboldt Border of North Dyerville Flat, near South Fork R.R. Station and Post Office, South Fork Eel River, Bull Creek Region. Comment
  UCD115360  Lepidium didymum James P. Smith 1973-5-26 6876 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC161491  Lepidium strictum Joseph P. Tracy 1911-7-1 3276 Humboldt near Hydesville (at Carlotta); Northern Coast Region, Carlotta 60 Comment
  HSC37507  Leptosiphon androsaceus J. D. Ackerman, A. M. Montalvo 1975-6-22 486 Humboldt 6.4 mi. W of Dinsmore, Hwy. 36 Comment
  CDA7526  Leucanthemum vulgare T. C. Fuller 1958-6-17 1832 Humboldt Freeway at Arcata. 0 Comment
  HSC5361  Leucanthemum vulgare R. Spellenberg 1964-6-15 411 Humboldt Near Humboldt Bay on the S side of Arcata. Comment
  UCD134127  Leucanthemum vulgare Lincoln Constance 1934-6-6 827 Humboldt Bull Creek Region, South Fork Eel Rive, Fire Trail, Dyerville to Horse Prairie and return. Comment
  CAS-BOT-BC444064  Lewisia leeana Joseph P. Tracy 1935-7-24 14200 Humboldt Trinity Summit. Near Ranger Station 1828 Comment
  HSC102511  Lewisia nevadensis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1496 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC32150  Lewisia triphylla D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5597 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  UCD149816  Leymus X vancouverensis William Anderson 1965-6-26 s.n. Humboldt Arcata Bottoms. Comment
  UC682047  Leymus mollis subsp. mollis G. L. Stebbins Jr. and G. L. Church 1941-5-26 3105 Humboldt s Trinidad; Little River Comment
  UC1197175  Ligusticum apiifolium J. P. Tracy 1902-7-4 1756 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC436493  Ligusticum apiifolium Joseph P. Tracy 1909-8-29 3084 Humboldt Humboldt Bay, near top of Humboldt Hill 152 Comment
  JEPS14228  Ligusticum apiifolium Joseph P. Tracy 1934-7-22 13485 Humboldt at crossing of Kneeland to Bridgeville rd. North Yager Creek 396 Comment
  HSC65927  Lilium bolanderi Gail Newton 1980-6-17 223 Humboldt Near Onion Mtn. 1341 Comment
  HSC76436  Lilium bolanderi Denis Kearns 1981-7-6 437 Humboldt Near Mosquito Lake 1122 Comment
  UC55890  Lilium columbianum J. P. Tracy 1902-7-4 1755 Humboldt immediate vicinity Eureka (near Ryan's Slough Hill) 0 Comment
  CAS-BOT-BC508403  Lilium columbianum A. M. Vollmer; L. Beane 1951-7-1 s.n. Humboldt A few miles north of Arcata Comment
  HSC45837  Lilium columbianum Clifton Raymond Chesbrough 1971-7-22 75 Humboldt 1.0 mi. S of Eureka golf course Comment
  HSC48845  Lilium kelleyanum Brad Klipfel 1973-7-15 207 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC76434  Lilium kelleyanum Teresa Prendusi 1981-7-24 468 Humboldt Near Whiteys Peak 1585 Comment
  UC666958  Lilium kelloggii Joseph P. Tracy 1929-7-4 8637 Humboldt French Camp Ridge 1066 Comment
  JEPS79921  Lilium occidentale Joseph P. Tracy 1918-7-21 5078 Humboldt around Humboldt Bay Humboldt Hill; Northern Coast Ranges, Humboldt Bay, Humboldt Hill 182 Comment
  UC666951  Lilium pardalinum Joseph P. Tracy 1930-7-17 8999 Humboldt McKay Camp; South Fork Mountain 1676 Comment
  HSC56955  Lilium pardalinum subsp. pardalinum Overton, Butler 1979-7-23 9465 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  HSC65214  Lilium pardalinum subsp. vollmeri T. Jimerson, J. Pageau, B. Marcot 1979-8-9 711 Humboldt 30 ft E of Rd. Timber Sale Unit 25 boundary, S of Tish Tang Creek 1341 Comment
  CAS-BOT-BC133010  Lilium washingtonianum subsp. purpurascens Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1676 Comment
  RSA12529  Lilium washingtonianum subsp. purpurascens Carl B. Wolf 1934-7-2 5908 Humboldt 7 miles from Bald Mountain on road to Snow Camp (mountains east of Korbel) 1067 Comment
  HSC15784  Limnanthes douglasii J. E. Lankila 1962-5-6 8 Humboldt W bank of river at Ferndale. Comment
  UC1197412  Limnanthes douglasii Joseph P. Tracy 1911-6-29 3269 Humboldt near Hydesville (on gravel bars of Van Duzen River and Yager Creek); Northern Coast Region 60 Comment
  UC146165  Linanthus bicolor Joseph P. Tracy 1908-6-9 2651 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC908667  Linanthus bicolor Joseph P. Tracy 1933-6-13 12576 Humboldt near summit on road from Hoopa w to Bair's (Hoopa Mountain); Hoopa Mountain 1066 Comment
  UC52409  Linanthus filipes Mrs. M. H. Manning Humboldt Hoopa Comment
  JEPS12691  Linnaea borealis var. longiflora W. L. Jepson Jul 16 1902-Jul 23 1902 Humboldt Hupa Trail Trinity Summit; , Hupa Trail 2133 Comment
  RSA435732  Linum angustifolium J. P. Smith 1973-5-26 6828 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC95072  Linum bienne Andrea Pickart 2002-7-2 146 Humboldt King Salmon Sand Spit 0 Comment
  HSC12547  Linum bienne C. Kline 1970-10-26 42 Humboldt End of School Rd., Mckinleyville, bluffs above Mad River. Comment
  HSC46165  Linum bienne J. P. Smith 1971-10-9 5008 Humboldt Mad River above the Fish Hatchery. Comment
  HSC97615  Linum bienne Cara Witte 2007-6-4 192 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  HSC16643  Listera cordata var. nephrophylla J. F. Knezevich 1968-5-21 449 Humboldt 20 mi. E of Arcata on Hwy. 299 at Lord Ellis Summit Comment
  HSC76614  Listera cordata var. nephrophylla Teresa Prendusi 1981-7-9 178 Humboldt Near Cedar Camp 1268 Comment
  UC1196367  Lithocarpus densiflorus Joseph P. Tracy 1921-10-2 5964 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  SEINET13953004 Image available Lithocarpus densiflorus J. Sandborg, F. Sandborg 1968-1 58 Humboldt Bluff Creek near Notice Creek 792 Comment
  UC1196492  Lithophragma affine Joseph P. Tracy 1918-5-26 4944 Humboldt lower foothills towards Redwood Creek Grouse Mt.; Northern Coast Ranges, , towards Redwood Creek 762 Comment
  UC1225760  Lobularia maritima Joseph P. Tracy 1946-6-2 17556 1/2 Humboldt near Samoa (on Humboldt Bay); Humboldt Bay 6 Comment
  HSC12422  Lobularia maritima Gary J. Stebbins 1970-3-3 15 Humboldt Road to Kneeland at the old Eureka dump, 4 mi. W of Kneeland Comment
  UC1199421  Logfia gallica Joseph P. Tracy 1929-6-3 8604 Humboldt near South Fork; Trinity River Valley 182 Comment
  UC1103060  Lolium multiflorum Joseph P. Tracy 1915-6-20 4653 Humboldt Eureka; Northern Coast Region, Eureka 0 Comment
  UC1541549  Lolium multiflorum Harold E. Parks May 1933 4305 Humboldt Spruce Cove Trinidad; Spruce Cove Comment
  HSC42239  Lolium perenne W. F. Nickel 1965-5-13 Humboldt On W side of College Elementary School on Humboldt State College Campus. Comment
  HSC99582  Lolium perenne K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 247 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
  UC1197166  Lomatium californicum Joseph P. Tracy 1912-7-31 3929 Humboldt near summit Buck Mt.; Northern Coast Ranges, Buck Mt. 1676 Comment
  UC1197164  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1942-6-23 17229 Humboldt 1 mi. w. Box Camp (on summit of ridge on Hoopa trail, Trinity Summit); Trinity Summit 1219 Comment
  UC1197160  Lomatium dissectum var. dissectum Joseph P. Tracy 1933-7-25 12888 Humboldt Grouse Mt. North Coast Ranges, Grouse Mt. 1524 Comment
  HSC74381  Lomatium macrocarpum M. A. Baker 1980-6-28 2477 Humboldt Near Mad River Buttes 1445 Comment
  UC1565807  Lomatium macrocarpum R. Spellenberg 1990-7-10 Humboldt 7.5 air mi. s.w. Salyer (on U.S.F.S. Rd. 6N08, on Friday Ridge 0.4 mi. n.e. of junction with U.S.F.S. Rd. 1, extreme e. edge county); Friday Ridge 1371 Comment
  HSC98775  Lomatium macrocarpum Cara Witte 2008-6-9 695 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1509 Comment
  UC647476 Image available Lomatium tracyi Joseph P. Tracy 1933-7-25 12895 Humboldt Grouse Mountain. 1524 Comment
  UC906644  Lomatium triternatum var. triternatum Joseph P. Tracy 1942-6-23 17228 Humboldt 1 mi. w. Box Camp (Trinity Summit); Trinity Summit 1219 Comment
  UC906652  Lomatium utriculatum Joseph P. Tracy 1947-6-8 17707 Humboldt 5 mi. e. Carlotta (open flat by old Strong's District School House) 45 Comment
  CAS-BOT-BC240472  Lonicera hispidula Ynez Whilton Winblad 1941-6-24 s.n. Humboldt Between Garberville and Hartsook Comment
  CAS-BOT-BC240475  Lonicera hispidula John McLaren 1920-9-1 s.n. Humboldt Unspecified Comment
  UCD67636  Lonicera hispidula D. Sanchez-Mata 1996-6-28 s.n. Humboldt Blue Lake-Willow Creek. Lord-Ellis Summit. 560 Comment
  UCSB22320  Lonicera involucrata Keefe, Joseph 1967-7-8 Humboldt Junction Crannell Road and Little River Drive, north of Eureka 6 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
  UC179941  Lotus aboriginus Joseph P. Tracy 1914-7-5 4576 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 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
  UC179922  Lotus denticulatus Joseph P. Tracy 1914-6-14 1240 Humboldt near Hydesville; Northern Coast Ranges, Van Duzen River, Yager Creek 30 Comment
  JEPS55515  Lotus humistratus Mrs. M. H. Manning 1901-5 69 Humboldt near Hupa Comment
  JEPS55459  Lotus nevadensis var. nevadensis Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  POM276696  Lotus unifoliolatus Lyman Benson 1928-7-11 433 Humboldt Weott Ranger Station. 61 Comment
  RSA12444  Lotus unifoliolatus Carl B. Wolf 1934-7-1 5849 Humboldt Along Eel River and Redwood Highway, 1.2 mi. S of F. K. Lane Grove. 61 Comment
  HSC98269  Lotus unifoliolatus var. unifoliolatus D. E. Anderson 1962-7-14 2256 Humboldt About 3 mi. E of Kneeland Comment
  UC502997  Lupinus albicaulis var. shastensis Joseph P. Tracy 1932-7-15 10586 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit, e of Corral Prairie 1828 Comment
  UC503003  Lupinus albicaulis var. shastensis Joseph P. Tracy 1932-6-14 10161 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC50953  Lupinus andersonii G. L. Clifton, Overton 1979-6-3 3777 Humboldt Near Pine Mtn., close to the town of Forest Glen 1495 Comment
  CHSC32840  Lupinus arboreus Lora L. Anderson 1981-4-26 17 Humboldt Ca. 0.5 mi e of ocean (Moonstone Beach) 0.5 mi w of Hwy 101, 11.5 mi n of Arcata. 0 Comment
  SD39025  Lupinus arboreus Edith A. Purer 1932-7-30 4682 Humboldt South of Orick, sand dunes Comment
  UC1197255  Lupinus arboreus J. P. Tracy 1912-3-31 3566 Humboldt Blue Lake 30 Comment
  UC1223266  Lupinus arboreus Joseph P. Tracy 1947-7-3 17763 Humboldt mouth of Little River Comment
  UC1223260  Lupinus arboreus Joseph P. Tracy 1934-7-21 13482 Humboldt Samoa Sand Dunes Comment
  RSA296737  Lupinus arboreus var. arboreus J. P. Smith, T. W. Nelson 1977-6-30 9218 Humboldt Samoa Peninsula just east of the drag strip. Comment
  HSC47063  Lupinus bicolor J. P. Smith, Thomas W. Nelson 1977-6-30 9198 Humboldt Samoa Peninsula just E of the drag strip. Comment
  HSC14788  Lupinus bicolor C. E. Fellows 1965-5-19 87 Humboldt 1.6 mi. S of 7th St. on Hwy. 101 at bridge, E side of Hwy., S side of bridge Comment
  HSC32075  Lupinus bicolor Glenn McGourty 1974-4-27 35 Humboldt Along side of Mattole River Comment
  RSA296803  Lupinus bicolor subsp. microphyllus Lincoln Constance 1934-5-26 664 Humboldt S. Ford of eel River, S. end of Dyerville Bridge. 46 Comment
  HSC57309  Lupinus latifolius Griswold, Butler 1979-7-10 6265 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC57313  Lupinus latifolius Griswold, Butler 1979-7-10 6326 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UCSB3308  Lupinus latifolius Keator, Glenn 1958-6-18 Humboldt Dyerville Honeydew Road Comment
  UC1776379  Lupinus latifolius var. latifolius R. Spellenberg 1990-7-9 Humboldt Extreme E edge county, 14 air mi. SW of Burnt Ranch, 14 mi S of Calif Hwy 299 and Berry Summit on USFS Rd. 1, on Pilot Ridge. 1371 Comment
  UC161545  Lupinus latifolius var. latifolius Joseph P. Tracy 1911-7-7 3417 Humboldt Viz. Ridge n of Willow Creek Brannan Mountain (between Willow and Campbell Creeks, near the summit); Northern Coast Ranges, Brannan Mt, btw Willow and Campbell C 1219 Comment
  UC156999  Lupinus luteolus Joseph P. Tracy 1908-6 2696 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  RSA414417  Lupinus rivularis Bonnie C. Templeton 1964-6-11 10073 Humboldt Between Salyer and Arcata on Highway 299 Comment
  HSC56398  Luzula comosa Griswold, Butler 1979-7-11 6968 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC89509  Luzula comosa M. Roantree 1985-4-28 19 Humboldt W side of Trinidad Head along trail Comment
  HSC97487  Luzula comosa Cara Witte 2007-5-23 109 Humboldt Near Grouse Mountain. Along 4N32. Approximately 0.5 miles south of intersection with 5N04 and 4N32E. 1425 Comment
  HSC98641  Luzula comosa Cara Witte 2007-6-1 176 Humboldt Along Forest Service 5N10. 1.75 miles east of intersection with National Forest 1. 1365 Comment
  HSC63876  Luzula parviflora M. A. Baker 1979-6-29 959 Humboldt Hopkins Creek 750 Comment
  HSC64191  Luzula parviflora J. O. Sawyer, M. A. Ericksen 1979-6-23 3377 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  UCSB587  Luzula parviflora Parks, H.; Parks, S. 1952-06 Humboldt Bishop Pine Lodge; Trinidad Comment
  CAS-BOT-BC61936  Lycopodium clavatum Mrs. L. B. Kildale 1930-11-1 10755 Humboldt one mile north of Crannell, on trail to Camp 20 Comment
  LA5619  Lycopodium clavatum H. E. Parks; W. K. Parks 1932-7-30 1132 Humboldt Trinidad, Camp 21, Hammond Lumber Company 152 Comment
  HSC14221  Lycopus uniflorus H. E. Parks, J. P. Tracy 1924-8-3 6765 Humboldt Big Lagoon 6 Comment
  HSC103699  Lysichiton americanus M. R. Mesler 2014-9-3 1638 Humboldt Arcata, Jolly Giant Creek Rd 49 Comment
  SEINET10465778  Lysichiton americanus Sacks 1977-4-8 SACKS 5 Humboldt 0.2 mi W of Highway-101 and 5 mi. N of Trinidad 61 Comment
  HSC89989  Lythrum hyssopifolia Leonel Arguello 1989-6-10 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, at the end of the Fernstrom-Root trail, along W border of the salt marsh. Comment
  CAS-BOT-BC342804  Madia elegans Henry M. Pollard 1945-9-4 s.n. Humboldt Near Camp Creek, east side of Klamath River Comment
  HSC35631  Madia elegans Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-8-1 2144 Humboldt Beside Willow Creek just up stream from Hwy. 299 bridge Comment
  UC673206  Madia elegans Lincoln Constance and Reed C. Rollins 1942-5-11 2875 Humboldt 5 mi s Hoopa; North Coast Ranges, Hoopa Valley 121 Comment
  JEPS19928  Madia gracilis Lincoln Constance 1934-5-29 711 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  HSC44087  Madia gracilis Thomas W. Nelson, Jane P. Nelson 1977-9-3 3725 Humboldt N of Alder Springs 1555 Comment
  JEPS40406  Madia gracilis W. L. Jepson 1903-6-29 2235 Humboldt Low Gap Comment
  SEINET11810616  Madia gracilis subsp. pilosa J. P. Tracy 1950-1 19026 Humboldt Sproston's Place, 3 mi S of Burr Valley 1067 Comment
  RSA554592  Mahonia aquifolium W. Wisura 1993-5-9 4910 Humboldt Northwest: Hwy 299, 5.7 mi. W of Willow Creek at E-fork camp ground. Comment
  RSA25705  Mahonia nervosa C. B. Wolf 1941-7-27 11085 Humboldt North Coast Range Mts., Blue Lake to Willow Creek Rd. (U.S. #299) 2 mi. east of n. fk. of Mad River. 152 Comment
  CHSC32860  Maianthemum dilatatum Lora L. Anderson 1981-4-26 1 Humboldt Ca. 5 m n on Clam Beach Rd, 0.5 km e of Hwy 101, 9.5 mi n of Arcata. 0 Comment
  HSC47498  Maianthemum dilatatum Sheila Logan 1978-4-10 23 Humboldt McKinleyville, foot of Hiller Ave. at Ocean Rd., near Pacific ocean and Mad River 46 Comment
  POM224223  Maianthemum dilatatum H. E. Parks 1932-05 4289 Humboldt Bishop Pine Lodge, Trinidad. Comment
  RSA244984  Maianthemum dilatatum M. N. Gold 1966-5-15 25 Humboldt Dry Lagoon State Park, 13 miles north of Trinidad Comment
  UC1028306  Maianthemum dilatatum George B. Rossbach 1955-6-8 223 Humboldt n. portion Prairie Creek Redwoods State Park, Rte. 101 Prairie Creek Redwoods State Park, Rte. 101 Comment
  HSC74330  Maianthemum racemosum subsp. amplexicaule Gail Newton 1980-6-16 145 Humboldt Near Monks Camp. 1097 Comment
  HSC99006  Maianthemum racemosum subsp. amplexicaule Cara Witte 2007-6-13 259 Humboldt Along Forest Service Road 5N04. 1/4 mile east of spring near Grouse Mountain. 1564 Comment
  RSA0009527  Maianthemum racemosum subsp. amplexicaule Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  BLMAR283  Maianthemum stellatum Jennifer Anthony-Wheeler 1999-4-28 283 Humboldt King range Comment
  HSC58757  Malacothrix clevelandii Overton, Butler 1979-7-25 9876 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  JEPS42470  Marah oregana W. L. Jepson 1932-7-24 16377 Humboldt near Camp Grant; Eel River 91 Comment
  HSC95547  Marah oregana Andrea Pickart 2002-5-26 112 Humboldt Lanphere Dunes, along dirt road to Lanphere Dune Office 0 Comment
  RSA441241  Marah oregana Christopher Davidson 1973-5-29 2206 Humboldt 2 miles S of Carlotta on Hwy 36 61 Comment
  UC175778  Marrubium vulgare Joseph P. Tracy 1912-7-27 3878 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC673066  Medicago arabica Joseph P. Tracy 1933-5-20 12220 Humboldt Capetown Bear River (valley along river) 30 Comment
  HSC25766  Medicago lupulina Jana Kattenhorn 1970-10-28 150 Humboldt Mad River Bottoms, N Bank off Essex, off Hwy. 299 Comment
  HSC14977  Medicago polymorpha D. B. Bader 1963-3-29 15 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101. Comment
  HSC47607  Melica californica J. P. Smith 1977-4-23 9023 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  RSA10132  Melica californica Joseph P. Tracy 1927-5-14 7999 Humboldt Trinity River Valley, near the South Fork. 183 Comment
  SEINET200335 Image available Melica californica var. nevadensis J. P. Tracy 1927-5-14 7999 Humboldt Trinity River Valley near the S Fork 183 Comment
  UC1145131  Melica fugax Joseph P. Tracy 1936-7-5 15041 1/2 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC240328  Melica harfordii Dana York; Kim Hayler 2012-5-18 3105 Humboldt Six Rivers National Forest, near Somes Bar, 585 meters SE of the confluence of the Klamath and Salmon rivers, E and above highway 96 215 Comment
  CAS-BOT-BC281320  Melica harfordii David D. Keck 1948-7-2 6005 Humboldt E side Rocky Ridge, E of Berry's summit, 4.1 miles W of Willow Creek, near boundary of Six Rivers National Forest 457 Comment
  HSC74231  Melica harfordii M. A. Baker 1980-7-15 2984 Humboldt Near Whiting Ridge. 1341 Comment
  UCD87370  Melica harfordii A. A. Beetle; G. L. Stebbins Jr. 1942-6-1 3453 Humboldt 2 miles north of Orleans. Klamath River. Comment
  UCD87511  Melica harfordii August L. Hormay 1932-5-12 s.n. Humboldt Bull Creek Road. Comment
  UCD87540  Melica harfordii Peter H. Raven; R. Snow 1958-7-20 13626 Humboldt 5.3 miles southwest of Denny Post Office. Comment
Read comments
Apr 8 2014
  CAS-BOT-BC262467  Melica subulata Joseph P. Tracy 1935-5-25 13898 Humboldt North Coast Ranges. Dobbyn Creek 152 Comment
  CAS-BOT-BC262468  Melica subulata Harley P. Chandler 1901-5-1 1174 Humboldt North Coast Ranges. Humboldt Bay 30 Comment
  HSC10366  Melica subulata E. W. Styskel 1963-5-16 30 Humboldt 3.0 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  RSA183513  Melica subulata D. E. Anderson 1965-5-8 3631 Humboldt 0.6 miles west of bridge over North Fork of Mad River, along highway 299. Comment
  UC1103161  Melica subulata H. E. Parks and Joseph P. Tracy 1934-6-27 11075 Humboldt Grouse Mt. 1432 Comment
  UC38867  Melica subulata Harley P. Chandler May 1901 1174 Humboldt Humboldt Bay; North Coast Ranges 30 Comment
  UCD88673  Melica subulata R. Tofsrud 1949-7-1 s.n. Humboldt On road from Scotia to Capetown. Comment
  HSC15521  Melilotus indicus M. J. Athey 1970-10-12 11 Humboldt Along the old road to Trinidad Comment
  JEPS63289  Melissa officinalis W. L. Jepson 1936-8-6 17854 Humboldt Philipsville, S. Fork Eel R. S. Fork Eel R., Philipsville Comment
  UC1225832  Mentha aquatica Joseph P. Tracy 1947-11-9 17945 Humboldt Ferndale 9 Comment
  HSC14248  Mentha canadensis Paul Shields 1955-10-7 Humboldt Essex Pond, near Fieldbrook Comment
  JEPS63458  Mentha canadensis Joseph P. Tracy 1934-7-30 13501 Humboldt along coast in front of South End of Stone Lagoon Dry Lagoon; , in front of South End of Stone Lagoon 3 Comment
  RSA21020  Mentha canadensis Carl B. Wolf 1937-9-12 9320 Humboldt Big Lagoon, south side along Redwood Hwy 6 Comment
  UC154012  Mentha canadensis J. P. Tracy 1905-9-3 2391 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  RSA43834  Mentha canadensis H. M. Pollard 1947-8-28 s.n. Humboldt Near old placer mine, north of Forest Service Station, Orleans. Comment
  UCD125052  Mentha canadensis Malcolm A. Nobs; S. Galen Smith 1949-8-9 1241 Humboldt on south side of the town of Blue Lake. Comment
  HSC90755  Mentha pulegium Gail Newton 1983-8-21 3856 Humboldt Elk River Wildlife Area, Eureka. Comment
  HSC98868  Mentha pulegium Cara Witte 2008-8-5 991 Humboldt Along National Forest 1 on Kinsey Ridge. 1/2 north of intersection with Forest Service Road 4N06. 1291 Comment
  HSC38431  Mentzelia laevicaulis J. P. Smith 1976-10-30 8996 Humboldt Mad River, E of Essex Lane exit. Comment
  SEINET11793954  Micropus californicus var. californicus J. P. Tracy 1947-1 17681 Humboldt near Briceland Comment
  UC1223202  Microseris acuminata Joseph P. Tracy 1948-6-13 18058 Humboldt roadside 3 mi w Harris 762 Comment
  HSC70251  Microsteris gracilis M. A. Baker 1980-6-8 1917 Humboldt Near Buck Flat. 1554 Comment
  JEPS4738  Mimulus alsinoides Joseph P. Tracy 1925-6-7 7062 Humboldt Willow Creek Canyon Northern Coast Ranges 457 Comment
  HSC20645  Mimulus aurantiacus var. aurantiacus Paul Shields 1955-6-12 Humboldt 6 mi. W of Myers Flat Comment
  HSC20679  Mimulus aurantiacus var. aurantiacus J. E. Lankila 1962-5-6 7 Humboldt W bank of Eel River across from Shively, .25 mi. from Bear Creek Comment
  HSC35820  Mimulus aurantiacus var. aurantiacus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1914 Humboldt Beside Hwy. 36, 1 mi. W of Grizzley Creek Comment
  JEPS32498  Mimulus aurantiacus var. aurantiacus Peter H. Raven 1963-5-15 18375 Humboldt about 1.5 mi s Trinidad (Luffenholz Beach) Comment
  JEPS10550  Mimulus breweri W. L. Jepson 1902-7-23 2108 Humboldt Trinity Summit 2133 Comment
  HSC40847  Mimulus breweri Thomas W. Nelson 1976-7-9 3003 Humboldt W side of ridge S of E peak of Mount Lassic group 1524 Comment
  UC162579  Mimulus cardinalis Joseph P. Tracy 1911-7-10 3480 Humboldt tributary of Trinity River (along Willow Creek near mouth); Northern Coast Ranges 243 Comment
  HSC100669  Mimulus dentatus Carl C. Marshall Jun 1886 126 Humboldt Damp places near the bay. Comment
  UCSB15934  Mimulus dentatus Breedlove, Dennis 1962-6-8 Humboldt along U.S. Highway 101; 8 miles north of Orick 60 Comment
  UC1196790  Mimulus douglasii Joseph P. Tracy 1921-4-24 5468 Humboldt Phillipsville Northern Coast Ranges, South Fork of Eel River 121 Comment
  UC1196794  Mimulus douglasii Joseph P. Tracy 1948-5-31 17997 Humboldt near Harris 609 Comment
  HSC99435  Mimulus guttatus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 84 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  POM273242  Mimulus guttatus Lyman Benson 1928-7-10 453 Humboldt Eureka, along ocean bluffs. Comment
  SEINET12330005  Mimulus guttatus F. H. Utech 1986-1 86 -405 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  UC175794  Mimulus guttatus Joseph P. Tracy 1912-6-16 3704 Humboldt region about Humboldt Bay (Hookton); Northern Coast Region 0 Comment
  UC1196768  Mimulus inodorus Joseph P. Tracy 1939-8-5 16376 Humboldt Dinsmore's Van Duzen River 731 Comment
  UC1196796  Mimulus layneae Joseph P. Tracy 1939-7-23 16531 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC41845  Mimulus nanus var. nanus Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  UC582710  Mimulus nasutus Joseph P. Tracy 1933-5-20 12252 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  HSC72438  Mimulus pilosus J. P. Smith 1971-10-9 5010 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC43204  Mimulus pilosus R. Sutherland 1976-8-13 26 .13876 Humboldt In mouth of Redwood Creek at S Fork of Eel River 87 Comment
  HSC104079  Minuartia decumbens S. Carothers 2001-6-4 Humboldt Six Rivers National Forest; Lassics Botanical Area, ridge off Rd. 1S11 1646 Comment
  HSC71799  Minuartia nuttallii subsp. gregaria M. A. Baker 1980-6-8 1924 Humboldt Near Buck Flat. 1554 Comment
  UC902093  Mitella diversifolia Joseph P. Tracy 1942-6-23 17235 Humboldt along trail from Hoopa to summit (near Box Camp); Trinity Summit 1524 Comment
  CAS-BOT-BC433010  Mitella diversifolia Joseph P. Tracy 1942-6-23 17235 Humboldt Along trail from Hoopa to the summit. Trinity Summit. Near Box Camp 1524 Comment
  UC11410  Mitella diversifolia J. Burtt Davy 1899-6-23 5753 Humboldt about half way to summit; North Coast Ranges, Trinity Summit Comment
  HSC44280  Mitella ovalis Barbara Kelly 1977-4-23 305 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  UC303175  Mitella ovalis Joseph P. Tracy 1923-6-20 6310 Humboldt White Thorn Valley Northern Coast Ranges (banks of creek) 304 Comment
  HSC16011  Modiola caroliniana J. P. Tracy 1940-10-18 16777 Humboldt Trinidad 3 Comment
  UC1198328  Moehringia macrophylla Mrs. Emma N. Cathey 1939-4-16 Humboldt on Bull Creek-Mattole Road Panther Gap; , on Bull Creek-Mattole Road 762 Comment
  RSA20804  Monardella odoratissima Carl B. Wolf 1937-8-13 9269 Humboldt North Coast Range, 12 miles E of Hoopa Valley on new road towards Trinity Summit. 1677 Comment
  HSC102521  Monardella odoratissima subsp. glauca M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1508 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  CAS-BOT-BC215567  Monardella odoratissima subsp. pallida Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit Orleans Mt. 1828 Comment
  CAS-BOT-BC215568  Monardella odoratissima subsp. pallida Doris Kildale Gillespie 1931-6-7 10625 Humboldt South Fork Mt. Blake Lookout 1726 Comment
  UC2035920  Monardella odoratissima subsp. pallida Joseph P. Tracy Jul 16 1930-Jul 19 1930 8911 Humboldt South Fork Mountain near McKay Camp; Northern Coast Ranges 1676 Comment
  RSA46838  Monardella odoratissima subsp. pallida Doris K. Kildale 1927-7-22 3814 Humboldt Lasseck s Peaks Comment
  CAS-BOT-BC220256  Monardella sheltonii Carl B. Wolf 1937-8-13 9223 Humboldt North Coast Range, 8 mi. E. of Hoopa Valley on New Road towards Trinity Summit 1219 Comment
  CAS-BOT-BC220260  Monardella sheltonii Henry M. Pollard 1946-8-22 s.n. Humboldt Highway above Ullathorne Riffle, Orleans region Comment
  HSC99284  Monardella villosa J. Wendell Howe 1931-6-19 Humboldt Redway Comment
  UC1239681  Monardella villosa subsp. villosa Joseph P. Tracy 1936-6-27 15005 Humboldt Miranda South Fork Eel River 121 Comment
  UC34369  Monotropa hypopitys Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  HSC65194  Monotropa hypopitys T. Jimerson, J. Pageau, L. Banta 1979-6-18 925 Humboldt Waterman Ridge, at the end of FS 7N02, Willow Creek Comment
  HSC102631  Montia chamissoi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1616 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  CAS-BOT-BC444802  Montia diffusa Don Hagar 1957-5-21 59 Humboldt Brush Mountain, 3.5 miles southwest of Willow Creek 853 Comment
  CAS-BOT-BC444805  Montia diffusa Volney Rattan 1882-1-1 s.n. Humboldt Unspecified Comment
  UC1223246  Montia diffusa Joseph P. Tracy 1950-5-7 18652 Humboldt road to South Yager Valley is 5 mi n of Bridgeville (Valley of South Yager Creek); Valley of South Yager Creek 762 Comment
  HSC36356  Montia fontana J. P. Smith 1976-2-21 8507 Humboldt Tish Tang Campground Comment
  SEINET3026082  Montia fontana Joseph P. Tracy 1904-4-3 200 Humboldt Eureka. 0 Comment
  CAS-BOT-BC445163  Montia parvifolia Harley P. Chandler 1901-5-1 1261 Humboldt North Coast Ranges. Redwood Belt 152 Comment
  RSA87679  Montia parvifolia L. R. Abrams, Rimo Bacigalupi 1922-6-25 8282 Humboldt Big Lagoon S of Quick Comment
  UC7878  Montia parvifolia Harley P. Chandler May, 1901 1261 Humboldt North Coast Ranges, Redwood Belt Redwood Belt; North Coast Ranges, Redwood Belt 152 Comment
  RSA183637  Montia parvifolia D. E. Anderson 1965-5-22 3726 Humboldt 9.4 miles S of Bridgeville, Comment
  RSA322445  Montia parvifolia J. P. Smith 1973-5-26 6851 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  SEINET11942565  Montia parvifolia H. P. Chandler 1901-1 1261 Humboldt Redwood Belt, North Coast Ranges 152 Comment
  HSC16098  Morella californica W. R. Brigham 1962-4-7 2 Humboldt S of Big Lagoon Comment
  HSC58648  Muhlenbergia filiformis G. L. Clifton, Griswold 1979-7-31 11669 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  POM257954  Muhlenbergia filiformis Joseph P. Tracy 8920 Humboldt South Fork Mountain; in wet meadow at McKay Camp. 1677 Comment
  UCD86712  Muhlenbergia filiformis R. Tofsrud 1948-9-1 s.n. Humboldt Road between Horse Mt. and Grouse Mt. 1371 Comment
  UCD86804  Muhlenbergia mexicana Joseph P. Tracy 1918-9-29 5115 Humboldt South Fork of Eel River, 4 miles above the mouth. 60 Comment
  UCD86806  Muhlenbergia mexicana Joseph P. Tracy 1922-9-3 6111 Humboldt Klamath River at Bluff Creek. 91 Comment
  HSC59659  Myosotis sylvatica Marla J. Carollo 1979-4-10 5 Humboldt Side of the logging trail behind dorms of HSU campus Comment
  UC1197940  Myrica californica Joseph P. Tracy 1931-3-26 9291 Humboldt along Van Duzen R. Alton; North Coast Ranges, , Van Duzen R. 30 Comment
  CDA20056  Myriophyllum aquaticum R. Spadoni, Green 2002-10-9 PDR P 070866 -A Humboldt Pacific Lumber Co, Scotia. 0 Comment
  JEPS109582  Myriophyllum hippuroides Dean W. Taylor 2002-9-12 18342 Humboldt Lake Prairie, remnant of the original bog vegetation on the eastern end of the lake 1097 Comment
  HSC77876  Myriophyllum sibiricum Bruce Hulberg 1977-10-23 771023 .8 Humboldt Fish Lake Comment
  UCD87817  Nassella lepida D. W. Cooper 1956-4-27 s.n. Humboldt Mattole area. Around Petrolia. Comment
  HSC73502  Navarretia capillaris Gail Newton 1980-7-11 1325 Humboldt Near Red Mtn. 1341 Comment
  HSC55854  Navarretia divaricata G. L. Clifton, Griswold 1979-7-25 10837 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC908378  Navarretia divaricata subsp. vividior Joseph P. Tracy Jul 16 1930-Jul 19 1930 9065 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 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
  SEINET200374  Navarretia divaricata var. vividior Joseph P. Tracy 1908-7-27 2721 Humboldt Valley of Van Duzen River, opposite Buck Mountain 305 Comment
  UC60875  Navarretia intertexta Harley P. Chandler Jun 1901 1542 Humboldt Klamath River North Coast Ranges 426 Comment
  BLMAR163  Navarretia mellita Donald Hazlett 1994-6-7 163 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  JEPS70390  Navarretia mellita Joseph P. Tracy 1934-7-9 13333 Humboldt 5 mi s Harris 762 Comment
  HSC34708  Navarretia squarrosa Thomas W. Nelson 1974-7-20 1696 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1222716  Navarretia squarrosa Joseph P. Tracy 1950-8-4 19254 Humboldt Grasshopper Peak Bull Creek State Park Comment
  SEINET200628  Navarretia viscidula Joseph P. Tracy 1918-7-5 5036 Humboldt White Thorn Valley 305 Comment
  UC24261  Nemophila menziesii var. atomaria Mrs. Manning Humboldt Hupa Comment
  UC67069  Nemophila menziesii var. atomaria H. P. Chandler 1276 Humboldt Hupa Mts. Comment
  HSC34946  Nemophila menziesii var. atomaria Robert M. Specht 1975-4-9 120 Humboldt 2 3/4 mi. N of Trinidad at Scotty Point 30 Comment
  UC177199  Nemophila menziesii var. atomaria Joseph P. Tracy 1913-6-13 4094 Humboldt opposite Buck Mountain (in valley of Van Duzen River); Northern Coast Ranges, in valley Van Duzen River, Buck Mt 762 Comment
  CAS-BOT-BC60545  Noccaea fendleri subsp. californica Doris K. Kildale 1926-3-21 1581 Humboldt Kneeland Prairie - summit rock pile. 853 Comment
  CDA17340  Noccaea fendleri subsp. californica P. Haggard 2004-8-15 PDR 1285929 Humboldt North Coast Ranges; Friday Ridge Rd, Willow Creek. 0 Comment
  UCSB1031  Notholithocarpus densiflorus Muller, Cornelius 1954-6-21 Humboldt 8 mi. ESE of Mad River on road to Forest Glen Comment
  HSC8073  Notholithocarpus densiflorus var. densiflorus Doris K. Kildale 1926-7-25 2438 Humboldt Briceland Bridge, 1/2 mi. W of Garberville 114 Comment
  SD42287  Notholithocarpus densiflorus var. echinoides Carl B. Wolf 1937-8-13 9239 Humboldt 8 miles east of Hoopa Valley on new road towards trinity summit 1219 Comment
  CAS-BOT-BC142299  Oemleria cerasiformis C. Hart Merriam 1921-7-8 s.n. Humboldt Fortuna Comment
  UC666833  Oemleria cerasiformis Joseph P. Tracy 1935-7-9 14059 Humboldt Willow Creek; Trinity River Valley 152 Comment
  RSA21623  Oenothera wolfii Carl B. Wolf 1937-9-9 9307 Humboldt 2 miles S of Cape Mendocino. 6 Comment
  UC1196945  Oenothera wolfii Joseph P. Tracy 1934-8-24 13598 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC16684  Orobanche californica subsp. californica Jerry Parker 1968-10-26 205 Humboldt Big Lagoon, dredged sand-spit opposite Sphagnum bog. Comment
  UC1197455  Orobanche fasciculata Joseph P. Tracy 1911-7-7 3222 Humboldt Northern Coast Ranges. Brannan Mountain, viz. ridge north of Willow Creek, between Willow and Campbell Creeks, near Summit. Comment
  CAS-BOT-BC458028  Orthilia secunda Doris K. Kildale 1925-8-16 1155 Humboldt Trinity Summit Trail near forks of Tish-Tang-i-tang Comment
  RSA0006077  Orthocarpus castillejoides var. humboldtiensis Philip A. Munz 1925-6-20 9890 Humboldt Eureka. Comment
  RSA523835  Orthocarpus faucibarbatus var. albidus Gordon H. True Jr. 1936-5-12 475 Humboldt 2 miles S of Eureka. 15 Comment
  HSC34279  Orthocarpus imbricatus K. Irwin 1975-8-13 Humboldt N Trinity Mtn. area below Mill Creek Lakes Comment
  UC1222795  Orthocarpus imbricatus Joseph P. Tracy 1950-8-8 19285 Humboldt Croghan Hole Trinity Summit (Trinity Summit); , Croghan Hole 1676 Comment
  HSC76202  Osmorhiza berteroi Overton, Butler 1979-8-2 12517 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC81604  Osmorhiza berteroi Thomas W. Nelson, Jane P. Nelson 1980-5-25 5249 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  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
  HSC59400  Osmorhiza purpurea Rick Lundquist 1979-5-2 55 Humboldt SE corner 7th & Union Streets 24 Comment
  HSC89718  Oxalis corniculata Larry Levine, Manuel Pachero, Murphey 1989-2-24 2 Humboldt HSU campus, garden plot SW of Buckhouse 40 Comment
  CHSC32846  Oxalis oregana Lora L. Anderson 1981-4-25 3 Humboldt Ca. 1/2 mi s of Redwood Creek, 4 mi n on Redwood Valley Rd. off hwy 299 w 16 mi ne of Arcata. 457 Comment
  UC1130248  Oxalis oregana H. L. Person 1932-8-1 Humboldt Korbel Eureka quad Comment
  RSA34052  Oxalis oregana A. A. Heller 1923-7-10 13787 Humboldt Humboldt Camp between Scotia and Pepperwood Comment
  HSC89720  Oxalis pes-caprae Larry Levine, Manuel Pachero, , Robert Murphey 1989-2-24 3 Humboldt HSU campus, garden plot SE of Buck House 40 Comment
  RSA20792  Oxalis trilliifolia Carl B. Wolf 1937-8-13 9257 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  SEINET12011449  Paeonia californica E. A. York 1990-1-10 2704 Humboldt USGS Redwood Field Station, Arcata Comment
  UC1103781  Panicum acuminatum var. acuminatum Joseph P. Tracy 1927-5-14 8003 Humboldt Trinity River Valley near the South Fork; Northern Coast Ranges, Trinity River Valley nr South Fork 182 Comment
  HSC10485  Panicum acuminatum var. fasciculatum D. E. Anderson 1963-9-29 2852 Humboldt Fish Lake. Comment
  CAS-BOT-BC253706  Panicum capillare Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC187238  Panicum capillare Joseph P. Tracy 1908-6 2929 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CDA2147  Panicum miliaceum T. R. Haig 1975-8-27 Humboldt Korbel. 0 Comment
  UC526836  Panicum miliaceum subsp. miliaceum Joseph P. Tracy 1931-9-7 9639 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC1145036  Panicum oligosanthes var. scribnerianum Joseph P. Tracy 1939-4-29 16246 Humboldt 8 mi below Orleans; Klamath River near Slate Creek 121 Comment
  UC1103407  Parapholis incurva Joseph P. Tracy 1937-6-5 15328 Humboldt mouth of Little River 3 Comment
  JEPS9618  Paxistima myrsinites Joseph P. Tracy 1933-4-30 6042 Humboldt ridge n. of Willow Creek between Willow and Campbell Creeks (Brannan Mt.); Brannan Mt. 914 Comment
  UC1199004  Paxistima myrsinites Joseph P. Tracy 1935-7-29 14346 Humboldt near Ranger Station Trinity Summit 1584 Comment
  HSC104271  Pedicularis densiflora Samantha E. Andres 2016-3-14 1 Humboldt Along Hwy. 299, ~5 mi. W of Willow Creek 274 Comment
  HSC60284  Pedicularis densiflora Richard Spjut 1979-3-25 5425 Humboldt Tish Tang Campground, 2 mi. E of Hoopa, above the river Comment
  JEPS3357  Pedicularis racemosa Joseph P. Tracy 1930-7-16 8917 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC67624  Pellaea mucronata Joseph P. Tracy 1933-6-13 12561 Humboldt Hoopa Mountain - near summit on road west from Hoopa to Bair's. 1066 Comment
  HSC102049  Penstemon anguineus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 953 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  HSC56254  Penstemon anguineus Walter Overton 1979-8-1 12387 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  JEPS7206  Penstemon anguineus P. E. Goddard 1906-6 679 Humboldt Lasseck Pk Comment
  UC577405  Penstemon anguineus Joseph P. Tracy 1936-8-8 15130 Humboldt on ridge 2 mi e Grove's Prairie; Trinity Summit, e of Grove's Prairie 1524 Comment
  SD77341  Penstemon anguineus F. W. Pennell, J. P Tracy 1940-7-7 26092 Humboldt Grouse Mountain, w. of Salyer, gravelly bank 1372 Comment
  NY601767  Penstemon heterophyllus var. purdyi L. Constance 1934-5-26 676 Humboldt South Fork of Eel River, south end of Dyerville Bridge 45.7 Comment
  HSC73698  Penstemon laetus subsp. sagittatus M. A. Baker 1980-7-15 2971 Humboldt Near Whiting Ridge. 1341 Comment
  CDA41855  Penstemon laetus subsp. sagittatus Kaylea Eickhoff, Cara M. Witte 2005-6-15 14 Humboldt 14.1 miles south of Highway 299 on NF1, 0.25 mile northeast of Grouse Mountain. Comment
  JEPS11634  Penstemon laetus var. sagittatus Joseph P. Tracy 1937-7-24 15513 Humboldt 2 mi se Devil's Hole; Trinity Summit, se of Devil's Hole 1584 Comment
  HSC72988  Penstemon newberryi M. A. Baker 1980-7-23 3144 Humboldt Near Orleans Mtn. 1859 Comment
  HSC55841  Penstemon newberryi subsp. berryi G. L. Clifton, Terry Griswold 1979-7-25 10792 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  RSA517741  Penstemon newberryi subsp. berryi W. K. Parks 1933-07 s.n. Humboldt South Fork Mountain. Comment
  HSC55991  Penstemon procerus var. brachyanthus Walter Overton, Marvin Butler 1979-7-31 11417 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  JEPS11498  Penstemon procerus var. brachyanthus Joseph P. Tracy 1932-7-12 10480 Humboldt head of Brett Hole Trinity Summit, head of Brett Hole 1828 Comment
  HSC35942  Penstemon rattanii Thomas W. Nelson, Jane Nelson, James Nelson 1975-7-15 2034 Humboldt French Camp, Bald Hills. Comment
  RSA0070754  Pentagramma triangularis Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  CAS-BOT-BC71616  Pentagramma triangularis subsp. triangularis Volney Rattan 1879-1-1 s.n. Humboldt unspecified Comment
  UC906651  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1947-8-24 17894 Humboldt Box Camp Trinity Summit 1463 Comment
  HSC61046  Perideridia gairdneri subsp. gairdneri T. Jimerson, J. Pageau 1979-8-10 745 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  UC906670  Perideridia howellii Joseph P. Tracy 1949-8-27 18503 Humboldt on Trinity Hwy e Redwood Creek; Berry's Mt. 609 Comment
  UC906663  Perideridia kelloggii Joseph P. Tracy 1948-8-11 18476 Humboldt 2 to 6 mi s from Grouse Mt.; Kinsey Ridge 1280 Comment
  HSC56110  Perideridia parishii subsp. latifolia G. L. Clifton 1979-7-31 11864 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC34702  Persicaria amphibia Thomas W. Nelson 1974-8-24 1705 Humboldt Klamath River ca. 2 mi. below the mouth of Aikins Creek Comment
  HSC95377  Persicaria lapathifolia Andrea Pickart 2002-8-7 193 Humboldt Arcata Marsh along I St. 20 Comment
  RSA167253  Petasites palmatus Joseph P. Tracy 1947-2-23 17670 Humboldt Van Duzen River, near Grizzly Creek. 91 Comment
  UC1199101  Phacelia Joseph P. Tracy 1948-5-31 18022 Humboldt Blocksburg 518 Comment
  SDSU6621  Phacelia D. F. Howe 1962-5-21 3300 Humboldt 24.5 miles north of garberville on #101. 61 Comment
  JEPS1440  Phacelia bolanderi Milo S. Baker 1923-8-5 197 B Humboldt hwy between Orick and Requa Comment
  HSC23998  Phacelia bolanderi Tim Baroni 1971-6-25 44 Humboldt Comment
  RSA30626  Phacelia heterophylla subsp. virgata Lincoln Constance, R. C. Rollins 1942-5-11 2876 Humboldt Hoopa Valley, 5 miles south of Hoopa. 122 Comment
  HSC24374  Phacelia mutabilis J. O. Sawyer 1970-6-24 2284 Humboldt W of Mill Creek Lakes. 1677 Comment
  HSC57166  Phacelia mutabilis Overton, Butler 1979-7-26 9971 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  HSC57184  Phacelia mutabilis Griswold, Butler 1979-7-10 6383 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC58339  Phacelia mutabilis Overton, Butler 1979-8-2 12654 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  RSA428107  Phacelia mutabilis Brad W. Klipfel 1973-7-1 143 Humboldt Along ridge trail south east of North Trinity Mountain 1829 Comment
  UC1222902  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1950-6-8 18737 Humboldt ridge summit near Mountain Glen Ranch (7 mi s of Ferndale); Bear River Ridge 609 Comment
  UC1103763  Phalaris arundinacea Joseph P. Tracy 1934-10-21 13695 Humboldt along coast in front of south end Stone Lagoon (Dry Lagoon); in front of South End Stone Lagoon, Dry Lagoon 3 Comment
  HSC10560  Phalaris californica J. P. Tracy 1925-6-7 7085 Humboldt Lord-Ellis Rd on Bald Mtn. Comment
  UCSC000088  Phalaris californica H. L. Person 1932-5-11 s.n. Humboldt near Arcata - Eureka 15 Comment
  JEPS79943  Philadelphus lewisii Joseph P. Tracy 1929-7-27 8646 Humboldt Fieldbrook Northern Coast Ranges 60 Comment
  UC183571  Philadelphus lewisii Joseph P. Tracy 1912-7-4 3722 Humboldt near Hydesville; Northern Coast Region 60 Comment
  POM126105  Phleum alpinum Joseph P. Tracy 1906-7-1 2514 Humboldt At Eureka 0 Comment
  HSC65479  Phlox adsurgens M. A. Baker 1980-6-7 1806 Humboldt Near Brush Mtn. 1128 Comment
  POM301286  Phlox adsurgens Joseph P. Tracy 1942-6-23 17233 Humboldt Trinity Summit, near Box Camp 1524 Comment
  RSA63693  Phlox adsurgens Milo S. Baker 1947-8-10 11944 Humboldt 15 miles northeast of Hoopa near end of forest road 1372 Comment
  UC1222710  Phlox adsurgens Joseph P. Tracy 1950-7-2 18965 Humboldt 6 mi ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  CAS-BOT-BC141271  Phoradendron serotinum subsp. tomentosum Doris K. Kildale 1925-12-27 1458 Humboldt Kneeland Prairie Comment
  CAS-BOT-BC452022  Phyllospadix torreyi H. E. Parks 1933-11-12 s.n. Humboldt Spruce Cove, Trinidad Comment
  HSC99286  Physocarpus capitatus T. Jimerson, J. Pageau 1979-6-22 609 Humboldt Near Bee Mtn., close to the town of Orleans 655 Comment
  CAS-BOT-BC73448  Picea sitchensis Ira L. Wiggins 1932-6-18 5870 Humboldt Hillside just north of mouth of Little River. Comment
  RSA20776  Pinus attenuata C. B. Wolf 1937-8-13 9240 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  LA6061  Pinus contorta H. E. Parks; May 1931 sn Humboldt Samoa Comment
  POM264447  Pinus contorta var. contorta H. E. Parks, S. T. Parks 1938-03 24125 Humboldt Spruce Cove, Trinidad. 61 Comment
  RSA46880  Pinus lambertiana Doris K. Kildale 1926-9-5 2611 Humboldt Lassecks Peaks. 1570 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
  CAS-BOT-BC79026  Pinus ponderosa L. B. Kildale 1930-8-3 10354 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  HSC36773  Pinus sabiniana Brent Whitely 1975-7-10 153 Humboldt 198 Comment
  CAS-BOT-BC136469  Piperia candida L. R. Abrams 1916-7-11 5986 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC136533  Piperia candida Volney Rattan 1878-1-1 s.n. Humboldt Field redacted by CAS, contact the data manager for more information Comment
  RSA259584  Piperia transversa J. D. Ackerman 1974-8-14 408 Humboldt 2 miles north of Manila, between sand dunes and Mad River Slough Comment
  UC666983  Piperia unalascensis Joseph P. Tracy 1933-7-25 12880 Humboldt Grouse Mountain 1524 Comment
  HSC45213  Pityopus californicus R. York 1978-7-15 Humboldt Road to Brush Mt., China Timber Sale. Bulk Collection 139 1067 Comment
  UC1239621  Plagiobothrys nothofulvus Joseph P. Tracy 1939-4-29 16235 Humboldt near Weitchpec (along Trinity River); along Trinity River 121 Comment
  SBBG28861  Plagiobothrys reticulatus H. E. Parks -Jul-1937 24042 Humboldt Spruce Cove, Trinidad 64 Comment
  JEPS60974  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1918-7-5 5010 Humboldt White Thorn Valley Northern Coast Ranges 304 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
  JEPS60976  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1914-5-30 4486 Humboldt Hydesville 60 Comment
  UC526813  Plagiobothrys tenellus Joseph P. Tracy 1932-5-17 10070 Humboldt Berry's Northern Coast Ranges, Redwood Creek 274 Comment
  HSC16826  Plantago erecta L. H. Myers 1963-5-14 13 Humboldt W of Lanpheres Rd., Mad River slough area Comment
  HSC69585  Plantago lanceolata R. Kalal 1980-7-20 90 Humboldt .2 mi. N of Arcata Marsh project 2 Comment
  RSA247394  Plantago lanceolata Gary D. Wallace 1966-9-12 706 Humboldt East of Arcata near Willow Creek along Hwy 299. Comment
  HSC16852  Plantago major Paul Shields Jun 1955 Humboldt 1 mi. N of Weott Comment
  UC154018  Plantago major J. P. Tracy 1910-10-1 3167 Humboldt immediate vicinity Eureka 0 Comment
  HSC16858  Plantago maritima D. E. Anderson 1961-9-13 1818 Humboldt Comment
  HSC95094  Plantago maritima Andrea Pickart 2002-6-27 118 Humboldt Mad River Slough and Dunes, N of parking lot area at N end of access road. 0 Comment
  UC1196133  Plantago subnuda J. P. Tracy 1901-6-30 1212 Humboldt immediate vicinity Eureka 0 Comment
  UC1733682  Plantago subnuda Kay H. Beach, Frank Gould 1940-5-5 483 Humboldt north of Eureka along roadside; with Plantago major and Plantago lanceolata. Comment
  UC1239596  Plectritis congesta Joseph P. Tracy 1935-6-23 13974 Humboldt French Camp Ridge 1066 Comment
  UC999832  Plectritis congesta S. C. Dyal 1938-6-11 719 d Humboldt 2 mi e of Dinsmore Comment
  HSC48927  Pleuricospora fimbriolata M. A. Ericksen 1979-5-15 292 Humboldt 7 mi. up Eye See Rd. S of Orleans, off State Routh 96. Bulk Collection 163 Comment
  UC526779  Pleuropogon refractus Joseph P. Tracy 1932-7-14 10539 Humboldt Trinity Summit, Corral Prairie Trinity Summit; Klamath Mountains, , Corral Prairie 1524 Comment
  UC525625  Poa annua Joseph P. Tracy 1934-3-11 13148 Humboldt Weitchpec 121 Comment
  UC184155  Poa compressa Joseph P. Tracy 1912-7-26 3872 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC1132657  Poa douglasii H. S. Yates 1936-6-18 5725 Humboldt near mouth Little River; Eureka Quadrangle Comment
  UC1145115  Poa douglasii Joseph P. Tracy 1947-7-3 17766 Humboldt mouth of Little River 6 Comment
  UC70825  Poa douglasii Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6181 Humboldt Ferndale Comment
  RSA183517  Poa kelloggii H. S. Logsdon 1964-5-10 7 Humboldt 4.0 miles N.E. of Orick at Boye's Prairie Comment
  CAS-BOT-BC254279  Poa macrantha Joseph P. Tracy 1933-5-20 12224 Humboldt Cape Mendocino, S of point of the Cape, near ocean shore 30 Comment
  RSA603828  Poa macrantha D. D. Keck, Jens Clausen 1935-6-16 3382 Humboldt Mouth of Little River. Comment
  HSC10771  Poa pratensis R. V. Papike 1962-5-25 32 Humboldt Arcata. 91 Comment
  HSC10714  Poa secunda subsp. secunda D. J. Wilder 1965-4-25 12 Humboldt Humboldt State College Campus, Laurel Dr. Comment
  HSC70687  Poa secunda subsp. secunda Gail Newton 1980-7-13 1572 Humboldt Near Sims Mountain. 1311 Comment
  HSC10808  Poa trivialis E. W. Styskel 1963-5-19 42 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 305 Comment
  UC1103187  Poa trivialis Joseph P. Tracy 1936-6-28 15015 Humboldt e of Korbel (Bald Mt, Murphy Meadows) 975 Comment
  UC1988935  Pogogyne zizyphoroides Joseph P. Tracy 1938-7-5 16005 Humboldt Carlotta 5 miles east of town, open flat by old Strong's District School House 45 Comment
  RSA0022165  Pogogyne zizyphoroides Joseph P. Tracy 1946-5-30 17544 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town 61 Comment
  UC570808  Polygala cornuta var. cornuta H. L. Mason 1932-7-21 7110 Humboldt on road from Arcata to Weaverville; east slope of Southfork Mountains Comment
  HSC55078  Polygonum douglasii G. L. Clifton, Griswold 1979-7-31 11691 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC672962  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1933-8-30 13042 B Humboldt Grouse Mountain 1524 Comment
  UC672982  Polygonum hydropiper Joseph P. Tracy 1927-10-8 8386 Humboldt Boyes Ranch Prairie Creek 91 Comment
  HSC55096  Polygonum minimum G. L. Clifton, Griswold 1979-7-31 11800 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  CHSC10117  Polygonum paronychia J. W. Johnson 1962-2-15 1152 Humboldt Arcata. In Hollow 3 South near foot of Dune 3 North, Christenson Farm Samoa Peninsula.. Comment
  HSC90239  Polygonum paronychia L. Watson, J. Meninga Mar 1991 18 Humboldt Near Manila, Mad River Slough and Dunes, SW edge of parking lot Comment
  SBBG1702  Polygonum paronychia H. and M. Dearing 1939-5-24 3427 Humboldt Cape Mendocino Beach Comment
  UC1198095  Polygonum parryi Joseph P. Tracy 1912-7-31 3910 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (on nw slope of mt., along streamlet) 1066 Comment
  UC1136167  Polygonum persicaria H. L. Person 1932-7-18 Humboldt Freshwater Eureka Quadrangle Comment
  UC1198086  Polygonum persicaria Joseph P. Tracy 1932-9-16 10798 Humboldt Little River; at mouth 6 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
  UC1225798  Polygonum sachalinense Joseph P. Tracy 1946-8-25 17634 Humboldt roadside 1/2 mi s mouth of Elk River 6 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
  HSC28487  Polypodium californicum J. D. Ackerman 1973-3-27 53 Humboldt 1.5 mi. N of Manila Comment
  CAS-BOT-BC76846  Polypodium glycyrrhiza Doris K. Kildale 1926-2-22 1468 Humboldt Dobbyns Creek Comment
  SEINET204933 Image available Polypodium scouleri C. O. Baker 1962-3-22 5 Humboldt 2 miles souh of Trinidad along old 101 highway 91 Comment
  HSC1140  Polypodium scouleri J. W. Johnson 1962-3-9 1180 Humboldt On a bank above the Hunt Lane between the gate and barn Comment
  POM252888  Polypogon interruptus H. S. Yates 1936-6-16 5678 Humboldt 1 mile NE of Samoa 3 Comment
  HSC39900  Polypogon monspeliensis J. P. Smith 1971-10-9 5035 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC65445  Polypogon monspeliensis J. P. Smith 1973-5-26 6813 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  SEINET200577 Image available Polypogon monspeliensis Joseph P. Tracy 1916-5-31 4692 Humboldt Holmes Flat along Eel River from South Fork to Scotia. 61 Comment
  UC1714513  Polypogon monspeliensis Joseph P. Tracy 1916-5-31 4692 Humboldt along Eel River from South Fork to Scotia Holmes Flat; Northern Coast Ranges, along Eel River 60 Comment
  UC1440059  Polystichum Danin & H. G. Baker 1960-9-2 658 b Humboldt ca. 2 mi n Dyerville (along Ave. of Giants, High Rock on w side of Eel River); s side of Eel River Comment
  HSC73537  Polystichum imbricans Gail Newton 1980-7-14 1498 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC1153  Polystichum munitum Paul Shields 1955-6-10 Humboldt 3 mi. S of Weott Comment
  UC397299  Polystichum munitum Harley P. Chandler June, 1901 1316 Humboldt Hupa Indian Reservation; North Coast Ranges 152 Comment
  RSA693324  Polystichum munitum Anstruther Davidson 1923-8-10 17059 Humboldt Near Bridgeville Comment
Read comments
Jul 4 2013
  RSA430507  Populus trichocarpa Lyman D. Benson 1928-7-8 411 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; Watershed: S Fork Eel River. 61 Comment
  UC1173732  Populus trichocarpa Joseph P. Tracy 1939-4-18 16211 Humboldt on South Fork of Eel River between Miranda and Redway Sylvandale; North Coast Ranges, on South Fork of Eel River 91 Comment
  UC60858  Potamogeton natans W. C. Blasdale June, 1896 Humboldt near Graham's Ranch (on Mad River); Mad River Comment
Read comments
Sep 17 2012
  CDA837  Potamogeton nodosus E. C. Whitney 1963-9-2 s.n. Humboldt In lake of Benbow Lake State Park, south of Garberville. 0 Comment
  UCD149951  Potamogeton richardsonii William Anderson; H. Mc. 1964-8-5 s.n. Humboldt Freshwater Lagoon. Comment
  HSC18724  Potentilla anserina subsp. pacifica S. J. Hawks 1965-5-14 66 Humboldt 2 mi. NW of McKinleyville Comment
  HSC44619  Potentilla anserina subsp. pacifica Laura Witherspoon 1977-5-25 Humboldt Manila Comment
  HSC63026  Potentilla anserina subsp. pacifica J. P. Smith 1971-10-6 4937 Humboldt End of Murray Rd. in McKinleyville. 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
  POM275246  Potentilla anserina var. grandis Lyman D. Benson 1928-7-10 437 Humboldt Clam Beach, Trinidad. Sand dunes, along a small stream. 6 Comment
  RSA647543  Potentilla drummondii Marion P. Harthill 1972-7-19 1319 Humboldt Fish Lake 1067 Comment
  HSC18746  Potentilla gracilis J. P. Tracy 1934-6-18 13461 Humboldt Grouse Mtn. 1524 Comment
  HSC56374  Potentilla gracilis var. fastigiata Griswold, Butler 1979-7-11 6398 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC99393  Prosartes hookeri K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 42 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC37366  Prosartes smithii Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 499 Humboldt Along Lost Man Creek. 38 Comment
  HSC75750  Prosartes smithii Bill Copeland 1980-7-2 354 Humboldt Near Snow Camp Mtn. 1311 Comment
  CDA5736  Prunella vulgaris T. C. Fuller 1958-6-17 596 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC14311  Prunella vulgaris Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  HSC44534  Prunella vulgaris subsp. lanceolata Brad Klipfel 1973-7-1 142 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1196731  Prunella vulgaris var. lanceolata Joseph P. Tracy 1930-8-17 9162 Humboldt Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  HSC94127  Prunus laurocerasus Gordon Leppig 2000-4-12 1291 Humboldt Arcata: behind Humboldt State University, W of Fern Lake 49 Comment
  UC165845  Pseudognaphalium californicum Joseph P. Tracy 1908-7-1 2911 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers) 914 Comment
  HSC40252  Pseudognaphalium stramineum Linda M. Barker 1976-8-24 1685 Humboldt 3 mi. W of Arcata Comment
  SD39794  Pseudognaphalium stramineum Edith A. Purer 1932-7-27 4128 Humboldt Samoa Comment
  UCD20403  Pseudognaphalium thermale Donald C. Hagar 1957-8-15 199 Humboldt 4.5 miles NE of Salyer, Cedar Creek Divide, 3500 ft. elev. 1066 Comment
  CAS-BOT-BC80114  Pseudotsuga menziesii Doris K. Kildale 1927-5-7 3114 Humboldt Elk Ridge Comment
  CAS-BOT-BC80121  Pseudotsuga menziesii Doris K. Kildale 1927-2-28 2990 Humboldt Bug Creek 853 Comment
  HSC98757  Pseudotsuga menziesii Cara Witte 2008-7-2 814 Humboldt Board Camp Mountain. Road to Tri Board Camp. Forest Service Road 4N38. 1574 Comment
  HSC40003  Pseudotsuga menziesii var. menziesii Linda M. Barker 1976-9-3 1689 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC169084  Psilocarphus oregonus Joseph P. Tracy 1912-7-30 3890 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1223169  Psilocarphus tenellus Joseph P. Tracy 1950-6-8 18725 Humboldt 7 mi s Ferndale (near Mountain Glen Ranch); Summit of Bear River Ridge 609 Comment
  HSC36274  Pteridium aquilinum var. pubescens John Rehling 1974-7-8 11 Humboldt Along Bald Hills Rd. 23.5 mi. from Hwy. 101 Comment
  HSC98648  Pterospora andromedea Cara Witte 2007-8-8 624 Humboldt Intersection of National Forest 1 and Forest Service Road 6N38. 1409 Comment
  CAS-BOT-BC460603  Pyrola aphylla Doris K. Kildale 1926-6-17 2166 Humboldt Kneeland Prairie 762 Comment
  HSC74406  Pyrola crypta Gail Newton 1980-8-10 2018 Humboldt Near Blake Mtn. 1798 Comment
  UC562453  Pyrola picta Joseph P. Tracy 1935-7-30 14356 Humboldt Salmon Summit 1767 Comment
  BLMAR528  Pyrola picta Jennifer Wheeler 2009-6-23 528 Humboldt King range, Paradise Ridge road Comment
  CAS-BOT-BC466037  Pyrola picta L. B. Kildale 1930-9-9 10404 Humboldt Bald Mountain 914 Comment
  CAS-BOT-BC466038  Pyrola picta L. B. Kildale 1930-8-3 10364 Humboldt Chaparral Mt. near Bug Creek 914 Comment
  RSA0080453  Pyrola picta C. B. Wolf 1937-8-13 9259 Humboldt North coast range, 11 mi. E. of Hoopa Valley on new road toward Trinity Summit. 1524 Comment
  HSC18695  Pyrus fusca H. E. Parks Apr 1933 4352 Humboldt Spruce Cove, Trinidad Comment
  UC1196363  Quercus X morehus Joseph P. Tracy 1916-6-19 4723 Humboldt North Fork of Dobbyn Creek Northern Coast Ranges 182 Comment
  CAS-BOT-BC62675  Quercus chrysolepis Doris K. Kildale 1926-5-16 1842 Humboldt Horse Mt. road 792 Comment
  HSC40146  Quercus chrysolepis Thomas W. Nelson, James Nelson 1976-10-25 3277 Humboldt Along ridge N of Bear Creek 1463 Comment
  HSC98830  Quercus chrysolepis Cara Witte 2008-7-10 866 Humboldt Forest Service Road 4N06A. Cow Creek Ridge. 1 mile east of National Forest 1. Under powerlines. 1254 Comment
  UC54679  Quercus chrysolepis P. E. Goddard 1901-7-12 59 Humboldt Hupa Comment
  UCD46155  Quercus garryana var. garryana W. L. Colwell 1957-9-4 53 Humboldt Near Board Camp Mountain, 18 miles southeast of Korbal, near Six Rivers National Forest, Humboldt County. 1371 Comment
  UC203998  Quercus kelloggii Joseph P. Tracy 1918-5-1 4895 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC54717  Quercus kelloggii Mrs. M. H. Manning Apr 1902 Humboldt near Hupa Comment
  UCD165088  Quercus parvula var. shrevei Lois W. Weeth; Kerry Heise and John M. Tucker 2003-10-21 s.n. Humboldt 21.1 mi. from Garberville along Alderpoint Rd. 107 Comment
  HSC102567  Quercus sadleriana M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1554 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC70635  Quercus sadleriana R. York 1980-5-18 601 Humboldt Near Black Mtn. 792 Comment
  SFV17761  Quercus vacciniifolia J. M. Tucker 1948-9-3 1851 Humboldt Horse Mountain, at junction of roads to Grouse Mountain and to Horse Mountain Mine. 1463 Comment
  UC1083222  Quercus vacciniifolia Herbert L. Mason 1932-7-21 7108 Humboldt on road from Arcata to Weaverville (e slope of Southfork Mountains); Southfork Mountains Comment
Read comments
Oct 6 2006
  UC667981  Quercus vacciniifolia Joseph P. Tracy 1936-8-7 15116 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  UC2016503  Quercus vacciniifolia A. R. Kruckeberg 1965-9-11 5867 Humboldt On broad flat summit just s. of Horse Mtn., ca. 7 mi. s. of Hiway 299. Comment
  UC1193234  Quercus wislizeni R. H. Neuns 1950-7-31 123 Humboldt e side Tuttle Butte; Mail Ridge 914 Comment
  JEPS5915  Ranunculus aquatilis var. hispidulus Joseph P. Tracy 1937-5-30 15311 Humboldt in shallow pond near Bosworth's; Larrabee Creek 365 Comment
  UC162876  Ranunculus californicus J. P. Tracy 1901-5-30 1107 1/2 Humboldt Immediate Vicinity of Eureka 0 Comment
  UC162922  Ranunculus californicus Joseph P. Tracy 1911-5-27 3191 Humboldt Humboldt Bay Northern Coast Region (sand dunes of beach) Comment
  HSC18143  Ranunculus californicus var. cuneatus W. A. Heaton 1965-4-10 26 Humboldt 0.5 mi. N of Trinidad State Park Comment
  HSC18166  Ranunculus occidentalis var. occidentalis D. E. Anderson 1962-5-1 2190 Humboldt 1 mi. E of junction of Redwood Creek road and road to Hoopa Comment
  SD90193  Ranunculus orthorhynchus var. orthorhynchus Benjamin C. Stone 1952-6-23 Humboldt Redwood Forest, wet open places on Coast Hwy. 101 20 miles south of Klamath 46 Comment
  UC1196256  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1912-6-2 3641 Humboldt Eureka Northern Coast Region 0 Comment
  CDA3482  Ranunculus repens T. C. Fuller 1968-7-3 17442 Humboldt North side of Elk River Road, 2 miles east of Highway 101 freeway, ca. 5 miles south of Eureka. 0 Comment
  HSC18186  Ranunculus repens var. repens R. D. Modafferi 1965-5-9 55 Humboldt 2.2 mi. N of Trinidad on Trinity St. 305 Comment
  HSC64220  Ranunculus uncinatus J. O. Sawyer, M. A. Ericksen 1979-6-23 3381 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  BLMAR510  Ranunculus uncinatus Jennifer Anthony-Wheeler 2009-5-9 510 Humboldt Headwaters Forest Reserve, HRC U08 road; spur to Elk River Comment
  UC61091  Rhamnus californica subsp. californica Harley P. Chandler Jun 1901 1453 Humboldt Klamath River North Coast Ranges Comment
  UC1197998  Rhamnus crocea Joseph P. Tracy 1921-7-3 5844 Humboldt near mouth of Willow Creek (along Willow Creek, tributary of Trinity River); Trinity River, Willow Creek 152 Comment
  UC175733  Rhamnus purshiana Joseph P. Tracy 1912-9-1 3983 Humboldt Eureka Northern Coast Region 0 Comment
  CAS-BOT-BC56616  Rhododendron macrophyllum Mrs. A. H. Rodda 1932-5-20 s.n. Humboldt Redwood Highway Comment
  SEINET11996978  Rhododendron macrophyllum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -297 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  CAS-BOT-BC200381  Rhododendron occidentale var. paludosum G. A. Coleman 1901-7-20 s.n. Humboldt Near Arcata Comment
  HSC7893  Rhododendron occidentale var. paludosum D. E. Anderson 1961-9-30 1845 Humboldt Divide Lake Comment
  JEPS79963  Ribes binominatum Joseph P. Tracy 1932-7-13 10487 Humboldt near Corral Prairie (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1524 Comment
  UC667066  Ribes binominatum Joseph P. Tracy 1933-8-30 13058 Humboldt on e slope Grouse Mountain (near lookout station) 1615 Comment
  CAS-BOT-BC92880  Ribes bracteosum W. R. Dudley 1899-6-21 s.n. Humboldt Engelwood Brook-Eel River. Comment
  UC1225766  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1941-3-26 16813 Humboldt opposite mouth Willow Creek (Lack Pond); Trinity River Valley 152 Comment
  UC70556  Ribes inerme var. klamathense J. Burtt Davy 1899-6-26 5867 Humboldt Hoopa Valley North Coast Ranges Comment
  HSC23682  Ribes lacustre J. O. Sawyer 1971-6-14 2381 Humboldt E Fork of Horse Linto Creek at Grizzly Camp. 1341 Comment
  HSC56148  Ribes lacustre G. L. Clifton, Griswold 1979-8-1 11990 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UC492212  Ribes laxiflorum Joseph P. Tracy 1928-4-29 8421 Humboldt Prairie Creek Northern Coast Ranges 152 Comment
  CAS-BOT-BC206031  Ribes menziesii L. R. Abrams; R. Bacigalupi 1922-6-25 8289 Humboldt North of Big Lagoon near Orick Comment
  JEPS49222  Ribes menziesii Jos. P. Tracy 1909-2-14 2941 Humboldt Eureka 0 Comment
  UC1198935  Ribes menziesii Joseph P. Tracy 1913-3-9 4021 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC249627  Ribes menziesii Joseph P. Tracy 1921-4-4 5428 Humboldt near Korbel (at Camp Bauer); Northern Coast Ranges 30 Comment
  UC492211  Ribes nevadense Joseph P. Tracy 1932-7-18 10716 Humboldt head Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  UC1127532  Ribes roezlii H. S. Yates 1936-6-24 5880 Humboldt 2 mi e Bear Butte; Briceland Quadrangle Comment
  UC1222373  Ribes roezlii Joseph P. Tracy 1950-7-31 19235 Humboldt near Muddy Lake; Grouse Mountain 1524 Comment
  JEPS79967  Ribes roezlii var. cruentum Joseph P. Tracy 1930-7-25 8885 Humboldt Trinity River Valley at Willow Creek Trinity River Valley; Northern Coast Ranges, , Willow Creek 152 Comment
  SEINET3121271 Image available Ribes roezlii var. cruentum Joseph P. Tracy 1944-7-3 17481 Humboldt Trinity River Valley; Willow Creek 152 Comment
  CAS-BOT-BC212522  Ribes sanguineum C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  HSC20343  Ribes sanguineum D. E. Anderson 1962-2-10 1913 Humboldt 1.0 mi. S of Big Lagoon school along abandoned stretch of Hwy. 101 Comment
  HSC56320  Ribes sanguineum Overton, Butler 1979-8-2 12659 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC76265  Ribes sanguineum Teresa Prendusi 1981-7-24 511 Humboldt Near Whiteys Peak 1634 Comment
  JEPS43790 Image available Ribes sanguineum David G. Forbes 1966-4-4 66430 -A Humboldt 1 1/2 mi n Big Lagoon (State Park Highway 101) 1 Comment
  UC1039819  Ribes sanguineum J. I. Mallory 1956-4-27 126 Humboldt 1.5 mi w Petrolia (at head of Jeffrey Gulch, Humboldt base and Mer.); Quad. 28-B4 167 Comment
  UCD22651  Ribes sanguineum Karen Seaman 1983-5-1 14 Humboldt On Kneeland Road, 1 mile S.E. of Kneeland Airport on roadside. 701 Comment
  RSA0019530  Ribes sanguineum Barbara Ertter, Thomas Delendick 1987-5-16 6939 Humboldt Ca. 3 mi. E of Berry Summit on Highway 299, ca. 20 air miles E of Arcata; on S side of road above Willow Creek. 800 Comment
  UC1198911  Ribes sanguineum var. glutinosum Joseph P. Tracy 1925-3-15 6946 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UCR138884  Ribes sanguineum var. glutinosum E. Bower, S. Marubayashi, E. Perry 1997-5-10 52 Humboldt Titlow Hill Road, 0.5 mi past intersection with Hwy 299 762 Comment
  BLMAR270  Ribes sanguineum var. sanguineum Jennifer Anthony-Wheeler 1999-7-30 270 Humboldt Lacks Creek, growing in Hupa mt quad 1219 Comment
  RSA0018246  Ribes sanguineum var. sanguineum Thomas W. Nelson 1977-6-15 3426 Humboldt Along Forest Road 5N10 just north of junction with Road 6N08. 1372 Comment
  HSC74207  Ribes viscosissimum M. A. Baker 1980-7-19 3026 Humboldt Near Bret Hole. 1814 Comment
  HSC6899  Rorippa curvisiliqua D. E. Anderson 1961-9-30 1844 Humboldt Divide Lake Comment
  UC275275  Rorippa nasturtium-aquaticum Joseph P. Tracy with H. E. Parks 1923-5-30 6246 Humboldt in small streamlet mouth Little River; Northern Coast Ranges, mouth Little River 3 Comment
  UC14401  Rorippa palustris Chestnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  HSC98973  Rorippa palustris subsp. occidentalis Cara Witte 2007-6-8 237 Humboldt Intersection of National Forest 1 and 4N38. Intersection to Board Camp Mountain. 1395 Comment
  JEPS47243  Rosa Lincoln Constance 1934-5-26 654 Humboldt S. end of Dyerville Bridge South Fork Eel River, Bull Creek Region (s bank of river) Comment
  RSA44364  Rosa eglanteria H. M. Pollard 1946-8-27 s.n. Humboldt Near Boyce Creek. Orleans region. Comment
  CAS-BOT-BC146489  Rosa gymnocarpa Doris Kildale Gillespie 1931-6-7 10623 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  CAS-BOT-BC146494  Rosa gymnocarpa Doris K. Kildale 1926-9-9 2684 Humboldt Little Van Duzen River, on Bridgeville - Weaverville road 640 Comment
  HSC36578  Rosa gymnocarpa Thomas W. Nelson, James Nelson 1975-9-3 2198 Humboldt Above junction of Maple Creek-Kneeland Rd. Comment
  UC467683  Rosa gymnocarpa Mrs. M. H. Manning 1901-6-7 61 Humboldt Hupa Comment
  CAS-BOT-BC146843  Rosa nutkana Carl B. Wolf 1931-8-28 2364 Humboldt 1/8 mile from Rohnerville on the road to Fortuna 30 Comment
  SBBG3090  Rosa nutkana M. J. Cody 1938-7-14 Humboldt 2 mi N of Trinidad Comment
  POM92406  Rosa nutkana L. R. Abrams 1922-06 8242 Humboldt Near South Bay. Comment
  JEPS47247  Rosa nutkana var. nutkana W. L. Jepson 1936-8-17 17922 Humboldt 2 1/2 mi s Fields Landing (bordering marsh) Comment
  UC667043  Rosa nutkana var. nutkana Joseph P. Tracy 1936-6-21 14994 Humboldt Iaqua 609 Comment
  CAS-BOT-BC148341  Rosa pisocarpa L. R. Abrams 1916-7-18 6077 Humboldt Between Arcata & Trinidad Comment
  UCR179289  Rubus R. G. Swinney 1968-3-28 235 Humboldt East of Humboldt State College, Arcata 152 Comment
  HSC98453  Rubus leucodermis Gail Newton 1980-8-10 2054 Humboldt Near Blake Mtn. 1707 Comment
  HSC19656  Rubus parviflorus Lincoln Constance 1934-5-31 756 Humboldt S Fork of the Eel River, Bull Creek Flat, along Bull Creek, W boundary of park to Grasshopper Peak, N side of creek Comment
  HSC77922  Rubus parviflorus L. P. Janeway, Paul Wilson 1984-5-7 768 Humboldt Near Coast Guard Station, N Spit of Humboldt Bay 3 Comment
  RSA523867  Rubus parviflorus G. H. True 1936-5-12 473 Humboldt 5 miles S of Kneeland. 457 Comment
  CAS-BOT-BC156719  Rubus spectabilis David D. Keck; J. Clausen 1935-6-16 3394 Humboldt Mouth of Little River, at roadside Comment
  CAS-BOT-BC156727  Rubus spectabilis David D. Keck; J. Clausen 1935-6-16 3394 Humboldt Mouth of Little River, at roadside Comment
  HSC19690  Rubus spectabilis K. P. St. John 1965-4-3 8 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  POM271104  Rubus spectabilis Lyman D. Benson 1929-7-15 1812 Humboldt Clam Beach, Trinidad. Comment
  POM271106  Rubus spectabilis Lyman D. Benson 1929-7-15 1816 Humboldt Clam Beach, Trinidad. Comment
  RSA183527  Rubus spectabilis M. L. Stuart 1965-4-25 20 Humboldt About 100 yards up the Fern Lake Road. Comment
  SBBG50775  Rubus spectabilis D. G. Forbes 1966-4-4 66 -430 Humboldt Big Lagoon St Park, St Hwy 101 Comment
  CAS-BOT-BC156728  Rubus spectabilis Duart V. Brown 1947-3-27 18 Humboldt Tectah Creek, Klamath River Comment
  HSC70847  Rubus ursinus M. A. Baker 1980-6-7 1829 Humboldt Near Ammon Creek 732 Comment
  UCD17844  Rubus ursinus H. Olmo 8-10 May 1962 62- 31 Humboldt California. Humboldt County: 9 miles east of Carlotta. Comment
  HSC76413  Rudbeckia californica Michael Ericksen 1981-8-21 1082 Humboldt Near Dan East Cabin 1609 Comment
  HSC76208  Rudbeckia klamathensis Overton, Butler 1979-8-2 12527 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC55016  Rumex acetosella Overton, Butler 1979-7-31 11408 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC1541400  Rumex acetosella W. K. Parks Apr 1934 5279 Humboldt Spruce Cove Trinidad Comment
  UCD100980  Rumex acetosella Linda M. Barker 1976-5-13 1483 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC17567  Rumex acetosella J. W. Johnson 1961-8-17 1039 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC23129  Rumex acetosella Norman Dennis 1965-6-19 134 Humboldt 0.25 mi S and 1.0 mi. E of junction of Barry Ridge Rd. and Eureka-Bridgeville county rd., along Ashfield Ridge Rd., 5 mi. SE of Kneeland 793 Comment
  HSC59582  Rumex acetosella Rick Lundquist 1979-4-24 34 Humboldt SE corner 7th and Union St., Arcata 24 Comment
  HSC97647  Rumex acetosella Kevin Thomas 2004-4-26 18 Humboldt Stewart Ave Comment
  CAS-BOT-BC421750  Rumex conglomeratus Carl B. Wolf 1927-8-30 1231 Humboldt 2 mi. s. of Petrolia on Matole River near point where road crosses river Comment
  UC1070542  Rumex occidentalis H. L. Person 1932-7-16 Humboldt hwy n of Trinidad; Rock Point Quad. Comment
Read comments
Aug 3 2007
  UC153979  Rumex occidentalis Joseph P. Tracy 1910-6-5 3148 Humboldt near Samoa; Northern Coast Region, Humboldt Bay Region 0 Comment
  UC1541397  Rumex salicifolius var. salicifolius Harold E. Parks 1934-8 5166 Humboldt Big Lagoon Comment
  UCD101474  Rumex transitorius Malcolm A. Nobs; S. Galen Smith 1958-8-9 1237 Humboldt Southern end of town of Blue Lake on Mad River. Comment
  UC296201  Ruppia maritima H. E. Parks 1757 Humboldt Little River Lagoon Comment
  HSC63070  Ruppia maritima David Wheeler 1979-5-31 146 Humboldt Arcata Bottoms, next to Mad River Slough Comment
  RSA301862  Rytidosperma penicillatum Joseph P. Tracy 1942-6-28 17267 Humboldt [Unspecified] Comment
  HSC4507  Salicornia depressa Norman H. Moe 1962-5-19 Humboldt Lanphere's Place, next to Mad River Slough Comment
  HSC62891  Salicornia depressa J. M. DiTomaso 1979-5-20 1066 Humboldt Eureka Bay 3 mi. SW of Arcata on Samoa Rd. Comment
  JEPS93177  Salicornia virginica Margriet Wetherwax and Kevin Downing 1993-8-9 2456 Humboldt just n of Eureka (on e side of Humboldt Bay, s side of Eureka Slough, near Bayside Road and Myrtle, just past Pigeon Point); Humboldt Bay, Eureka Slough 5 Comment
  CAS-BOT-BC129896  Salix bonplandiana Joseph P. Tracy 1932-4-23 9835 Humboldt South Fork of Eel River, between Miranda and Redway - North Coast Ranges 91 Comment
  CAS-BOT-BC103454  Salix eastwoodiae Joseph P. Tracy 1932-7-16 10647 Humboldt in McKay Meadow, Trinity Summit 1524 Comment
  JEPS12969  Salix exigua Joseph P. Tracy 1931-9-19 9673 Humboldt Alton; Northern Coast Region, Van Duzen River 30 Comment
  POM361044  Salix exigua H. E. Parks 1931-5-14 958 Humboldt Fernbridge. Eel River. 10 Comment
  SBBG29091  Salix exigua var. hindsiana C. R. Ball, H. Parks, J. Tracy 1932-5-17 1335 Humboldt above Trinity River, 1 mi below bridge on Trinity Hwy 152 Comment
  UC469443  Salix exigua var. hindsiana Joseph P. Tracy 1931-9-7 9642 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  CAS-BOT-BC104117  Salix hindsiana Doris K. Kildale 1926-9-19 2804 Humboldt Fort Seward 98 Comment
  CAS-BOT-BC107707  Salix hookeriana Harold E. Parks 1931-8-1 1057 Humboldt Bishop Pine Lodge, Trinidad 150 Comment
  CAS-BOT-BC107708  Salix hookeriana Harold E. Parks 1931-3-24 912 Humboldt Fortuna, on banks of Eel River 10 Comment
  CAS-BOT-BC107723  Salix hookeriana Alice Eastwood 1923-8-17 12320 Humboldt Samoa Comment
  CAS-BOT-BC107742  Salix hookeriana Joseph P. Tracy 1936-10-24 15202 Humboldt Fortuna 15 Comment
  CAS-BOT-BC107745  Salix hookeriana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 1216 Humboldt In pine barrens near the coast, 1 mile north of Samoa Comment
  CAS-BOT-BC107769  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1222 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  HSC96374  Salix hookeriana Gordon Leppig 1999-7-9 1186 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  UC1225775  Salix hookeriana Joseph P. Tracy 1948-4-4 17957 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  UC1225924  Salix hookeriana Joseph P. Tracy 1947-8-31 17930 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
  UC470419  Salix hookeriana Joseph P. Tracy 1931-10-18 9739 Humboldt Camp Grant North Coast Ranges, Eel River 60 Comment
  UC481263  Salix hookeriana Harold E. Parks 1931-5-28 999 Humboldt Little River Lagoon Comment
  UC481270  Salix hookeriana Harold E. Parks 1931-5-28 1000 Humboldt Little River Lagoon Comment
  UC481333  Salix hookeriana Harold E. Parks 1931-5-27 998 Humboldt Bishop Pine Lodge Trinidad 76 Comment
  UC481350  Salix hookeriana Harold E. Parks 1931-5-12 954 Humboldt Samoa Humboldt Bay Comment
  UC490466  Salix hookeriana Joseph P. Tracy 1932-9-10 10767 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC512084  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1222 Humboldt 1 mi n Samoa (pine barrens near coast) Comment
  UC512086  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1221 Humboldt 1 mi n Samoa (in pine barrens near the coast) Comment
  UC512104  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1208 Humboldt 4 1/2 mi s Trinidad; Little River Lagoon Comment
  UC512106  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1207 Humboldt 4 1/2 mi s Trinidad; Little River Lagoon Comment
  UC518897  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 5 Humboldt around Eureka Comment
  UCD111037  Salix hookeriana Linda M. Barker 1976-4-13 1383 Humboldt 3 miles west of Arcata. Comment
  UC470455  Salix jepsonii Joseph P. Tracy Jul 16 1930-Jul 19 1930 8928 Humboldt meadow at McKay Camp; Northern Coast Ranges, S. Fork Mt. 1676 Comment
  UC1173602  Salix laevigata Joseph P. Tracy 1935-6-22 13962 Humboldt at mouth of Larrabee Creek Eel River 45 Comment
  UCSB10870  Salix lasiandra Parks, Harold; Parks, Susan 1931-8-15 Humboldt Blue Slide, Van Duzen River 100 Comment
  CAS-BOT-BC107589  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1318 Humboldt On banks of Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  CAS-BOT-BC107594  Salix lasiolepis Harold E. Parks; Susan T. Parks 1931-8-15 1079 Humboldt Blue Slide, Van Duzen River 100 Comment
  CAS-BOT-BC107604  Salix lasiolepis Joseph P. Tracy; Harold E. Parks; Carleton R. Ball 1932-5-12 1236 Humboldt Gravelly floodplain of the Van Duzen River at Blue Slide 91 Comment
  HSC98013  Salix lasiolepis Cara Witte 2007-7-20 566 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1460 Comment
  JEPS12922  Salix lasiolepis H. E. Parks and Joseph P. Tracy 1933-3-19 11006 Humboldt near Bridgeville; Northern Coast Ranges 182 Comment
  JEPS12949  Salix lasiolepis Joseph P. Tracy 1932-3-6 9775 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS14772  Salix lasiolepis Joseph P. Tracy 1933-4-2 10960 Humboldt on Trinity Hwy. Berry's Mt. (e of Redwood Creek); Northern Coast Ranges 762 Comment
  UC469423  Salix lasiolepis Joseph P. Tracy 1931-8-16 9613 Humboldt vicinity of Garberville; Northern Coast Ranges 121 Comment
  UC481314  Salix lasiolepis Harold E. Parks and Joseph P. Tracy 1931-5-17 976 Humboldt mouth of Willow Creek at Trinity River 150 Comment
  UC490464  Salix lasiolepis Joseph P. Tracy 1932-9-5 10766 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC504020  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1254 Humboldt 2 mi E of Redwood Highway ( Mad River at Engelhart gravel pit, above Blue Lake) Comment
  UC506374  Salix lasiolepis Joseph P. Tracy 1933-4-9 10964 Humboldt Bridgeville 228 Comment
  UC506392  Salix lasiolepis Joseph P. Tracy 1932-6-4 10126 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC506398  Salix lasiolepis Joseph P. Tracy 1933-4-9 10968 Humboldt Bridgeville Northern Coast Ranges, Van Duzen River (along river) 228 Comment
  UC511981  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1247 Humboldt Van Duzen R. at Blue Slide; Van Duzen R., Blue Slide 91 Comment
  UC519329  Salix lasiolepis Joseph P. Tracy 1933-5-14 12181 Humboldt Willow Creek, near county road bridge Trinity River Valley 152 Comment
  UC526717  Salix lasiolepis Joseph P. Tracy 1934-7-9 13356 Humboldt Dobbyn Creek Northern Coast Ranges, Dobbyn Creek 152 Comment
  CDA39555  Salix lasiolepis Gordon Leppig 1999-4-15 1119 Humboldt Big Lagoon County Park; Big Lagoon Bog. Comment
  CAS-BOT-BC107412  Salix lasiolepis var. lasiolepis Alice Eastwood 1907-4-21 24 Humboldt Trinidad Comment
  HSC102022  Salix lucida subsp. lasiandra M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 923 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  SBBG57828  Salix lucida subsp. lasiandra H. E. Parks, J. P. Tracy 1931-5-17 966 Humboldt banks of Willow Crk Comment
  SBBG57833  Salix lucida subsp. lasiandra H. E. Parks 1931-3-14 959 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  CAS-BOT-BC125616  Salix melanopsis W. R. Dudley 1899-6-21 s.n. Humboldt At the junction of the North and South forks of Eel River Comment
  POM220111  Salix melanopsis H. E. Parks, Joseph P. Tracy 1931-5-17 974 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  SJSU181  Salix melanopsis H. E. Parks 1931-5-14 965 Humboldt Van Duzen R between Alton & Carlotta 15 Comment
  UC481170  Salix melanopsis Harold E. Parks 1931-8-25 1061 Humboldt Van Duzen R. Blue Slide; , Blue Slide 90 Comment
  CAS-BOT-BC129126  Salix scouleriana W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  CAS-BOT-BC129130  Salix scouleriana Harold E. Parks 1931-5-20 994 Humboldt Blue Lake, Mad River 15 Comment
  CAS-BOT-BC129154  Salix scouleriana Doris K. Kildale 1926-9-9 2687 Humboldt Black Oaks, near Low Gap of Mad River Comment
  CAS-BOT-BC129175  Salix scouleriana W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  RSA47090  Salix scouleriana Doris K. Kildale 1926-9-9 2687 Humboldt Low gap of Mod River. Comment
  UC54927  Salix scouleriana J. P. Tracy 1900-12-30 977 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC126275  Salix sessilifolia C. R. Ball; H. E. Parks; J. P. Tracy 1932-5-17 01337 Humboldt At Willow Creek, (Graham Ranch), near its junction with Trinity River 152 Comment
  HSC20109  Salix sitchensis C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-12 1230 Humboldt Van Duzen River, 1.5 mi. E of Alton 30 Comment
  HSC79545  Salix sitchensis Kenneth Clark 1980-3-24 546 Humboldt Alluvial terrace of Dead Man's Gulch 15 Comment
  UC146202  Salix sitchensis J. P. Tracy 1905-11-5 2397 Humboldt immediate vicinity Eureka 0 Comment
  UC1600860  Salix sitchensis Joseph P. Tracy 1933-10-8 13086 Humboldt Van Duzen R. Blue Slide; Northern Coast Ranges, , Blue Slide 91 Comment
  UC176185  Salix sitchensis Joseph P. Tracy 1913-3-9 4013 Humboldt Van Duzen R. near Hydesville; Northern Coast Region, Van Duzen R. 60 Comment
  UC203992  Salix sitchensis Joseph P. Tracy 1918-4-13 4869 Humboldt Jacoby Creek Quarry; Northern Coast Ranges, Jacoby Creek Quarry 91 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
  UC511968  Salix sitchensis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1256 Humboldt 2 mi. e. of Redwood Hwy. and above Blue Lake Rd. (floodplain of Mad R.); Mad R., Engelhart gravel pit Comment
  HSC20134  Salix tracyi J. P. Tracy 1933-3-19 10932 Humboldt Blue Slide, Van Duzen River 91 Comment
  RSA114994  Sambucus callicarpa E. K. Balls, L. W. Lenz 1955-5-15 20735 Humboldt 7.7 miles southwest from Ferndale along Old Coast Road to Capetown 518 Comment
  JEPS12742  Sambucus mexicana Joseph P. Tracy 1930-7-19 9088 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC44536  Sambucus nigra subsp. caerulea Brad Klipfel 1973-7-1 144 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC73873  Sambucus nigra subsp. caerulea M. A. Baker 1980-7-19 3020 Humboldt Near Bret Hole. 1814 Comment
  CAS-BOT-BC235126  Sambucus racemosa var. racemosa C. B. Wolf 1930-10-26 1765 Humboldt 1 mi. so. of Trinidad 91 Comment
  HSC3966  Sambucus racemosa var. racemosa Harvey Doerksen 1962-5-4 7 Humboldt 0.25 mi. W of Korbel, S side of Mad River. Comment
  HSC58013  Sambucus racemosa var. racemosa G. L. Clifton 1979-7-31 11812 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC1199042  Sanguisorba annua Joseph P. Tracy 1936-6-17 14974 Humboldt at crossing road from Bridgeville to Trinity Co. Little Van Duzen River 713 Comment
  HSC26452  Sanicula arctopoides T. O. Osborne 1970-5-17 18 Humboldt Sugarloaf Rock, Cape Mendocino 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
  CHSC35577  Sanicula crassicaulis Jacqueline Greenleaf 1980-5-23 87 Humboldt Near Dinsmores. 430 Comment
  HSC21630  Sanicula crassicaulis J. W. Johnson 1962-4-18 1260 Humboldt Arcata, between the Mad River mouth and the Hunt Farm, Samoa Peninsula. Comment
  HSC74740  Sanicula crassicaulis Gail Newton 1981-8-5 2361 Humboldt Near Bug Creek, E Fork. 820 Comment
  SEINET12119553  Sanicula crassicaulis J. P. Tracy 1950-1 19023 Humboldt Sproston's Place, 3 mi S of Burr Valley 1067 Comment
  HSC56221  Sanicula graveolens G. L. Clifton, Terry Griswold 1979-8-2 12249 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1197087  Sanicula laciniata Joseph P. Tracy 1935-4-14 13779 Humboldt along South Fork of Eel River, Miranda South Fork of Eel River; South Fork Eel River, Miranda 121 Comment
  HSC68625  Sanicula tracyi Jacqueline Greenleaf 1980-7-16 239 Humboldt Near Buck Mtn. 1250 Comment
  RSA167239  Sanicula tracyi Joseph P. Tracy 1950-7-6 19022 Humboldt Sproston s Place, 3 miles south of Burr Valley 1067 Comment
  UC1565803  Sanicula tuberosa R. Spellenberg 1990-7-9 10227 Humboldt 14 air mi sw of Burnt Ranch (20.5 mi s of California Hwy 299 and Berry Summit on USFS Rd 1, on Pilot Ridge, extreme e edge of Humboldt County); Pilot Ridge 1371 Comment
  HSC102082  Saxifraga ferruginea M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 984 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  JEPS26211  Saxifraga ferruginea Joseph P. Tracy 1935-7-24 14186 Humboldt near Ranger Station (Trinity Summit); Trinity Summit 1828 Comment
  CAS-BOT-BC441183  Saxifraga mertensiana Joseph P. Tracy 1911-6-4 3217 Humboldt Along Little River. 5 miles from the coast 121 Comment
  RSA246889  Schoenoplectus acutus var. occidentalis Robert F. Thorne, Percy C. Everett 1965-8-9 35283 Humboldt Big Lagoon. 3 Comment
  HSC7445  Schoenoplectus americanus J. W. Johnson 1962-4-18 1271 Humboldt Between the Mad River mouth and the Hunt Farm, Samoa Peninsula Comment
  RSA91475  Schoenoplectus maritimus F. W. Peirson 1923-7-11 4271 Humboldt Flats north of Eureka Comment
  CAS-BOT-BC111696  Schoenoplectus pungens var. badius D. E. Breedlove 1962-6-7 3053 Humboldt On extensive sand dunes 1.5 mi S of Samoa on peninsula on W side of Humboldt Bay. Comment
  HSC45967  Schoenoplectus tabernaemontani J. P. Smith 1973-5-26 6804 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC198641  Scirpus cernuus Joseph P. Tracy 1917-6-10 4821 Humboldt at Eureka; Northern Coast Region, at Eureka 0 Comment
  CAS-BOT-BC84074  Scirpus criniger H. N. Bolander 1867-6-1 6475 Humboldt Red Mts. Comment
  CAS-BOT-BC110928  Scirpus microcarpus Robert F. Thorne; P. Everett 1965-8-9 35320 Humboldt Clam Beach County Park along highway in shallow water of ditch. 3 Comment
  CAS-BOT-BC110927  Scirpus microcarpus Kenneth Clark 1980-4-18 601 Humboldt Point Delgada quad. In marsh area of upper meadow above Dead Man's Gulch 213 Comment
  CDA39145  Scirpus microcarpus Gordon Leppig 1998-6-26 861 Humboldt Arcata; Alder Grove Pond, south side of pond. Comment
  RSA183587  Scoliopus bigelovii R. D. Zortman 1963-3-16 13 Humboldt 5 miles northeast of Arcata; south of the Mad River, off Warren Creek Road. 91 Comment
  CAS-BOT-BC517412  Scoliopus bigelovii Leo Shapovalov; C. Woodhull 1940-3-6 s.n. Humboldt Redwood Creek near Garberville in Humboldt Redwood State Park Comment
  HSC15635  Scoliopus bigelovii D. E. Anderson 1962-3-17 1938 Humboldt Comment
  SEINET12050495  Scoliopus bigelovii F. H. Utech 1988-1 88 -293 Humboldt 11 mi from Bridgeville on Bridgeville-Kneeland Road, along Yager Creek, SE of Lone Star Junction 775 Comment
  SEINET12050531  Scoliopus bigelovii F. H. Utech 1988-1 88 -023 Humboldt 0.1 mi N of Meyers Flat along Avenue of the Giants (alt. US 101), along South Fork Eel River 60 Comment
  UC1197795  Scoliopus bigelovii Joseph P. Tracy 1905-4-2 2156 Humboldt on Mad River near Glendale (Humboldt Bay Region); Northern Coast Region, , Mad R. 0 Comment
  HSC21129  Scrophularia californica D. E. Anderson 1961-8-11 1734 Humboldt Redwood preserve E of HSU campus 30 Comment
  HSC100682  Scrophularia californica Carl C. Marshall Apr 1886 175 Humboldt Everywhere. Comment
  UC147874  Scrophularia californica Joseph P. Tracy 1906-6-10 2469 Humboldt near Wrangletown; Northern Coast Ranges 152 Comment
  RSA12446  Scutellaria antirrhinoides Carl B. Wolf 1934-7-1 5847 Humboldt Along Eel River and Redwood Highway, 1.2 mi. S of F. K. Lane Grove. 61 Comment
  SEINET12218663  Sedum divergens J. P. Tracy 1950-1 19294 Humboldt Croghan Hole on Trinity Summit 1676 Comment
  SD51705  Sedum laxum subsp. heckneri Joseph P. Tracy 1948-9-5 18190 Humboldt On rock ledge at top of ridge, 1.0 mile south of Grizzly Camp. 1370 Comment
  HSC57647  Sedum obtusatum subsp. retusum G. L. Clifton, Griswold 1979-7-25 10817 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  JEPS25697  Sedum radiatum P. C. Hutchison 1961-5-22 2027 Humboldt on hiway US 299 ca 4 mi n Orleans (e side Klamath River); , n of Orleans Comment
  HSC71086  Sedum stenopetalum Thomas W. Nelson, Jane Nelson 1977-5-30 3405 Humboldt Large rock downstream from Anderson's Ford 640 Comment
  CHSC79937  Selaginella wallacei L. P. Janeway 1996-8-4 5061 Humboldt High North Coast Ranges. Along Titlow Hill Road (Road #1) about 0.3 mi west of the spur road to top of Horse Mountain. 1341 Comment
  UC630453  Senecio glomeratus H. E. and S. T. Parks 1937-7-1 24033 Humboldt Spruce Cove Trinidad, Spruce Cove 60 Comment
  HSC45580  Senecio integerrimus Diane L. Reed 1978-4-22 16 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC72692  Senecio integerrimus var. major Gail Newton 1980-6-24 562 Humboldt Near Ladder Rock 1570 Comment
  HSC82111  Senecio integerrimus var. major Thomas W. Nelson, Jane P. Nelson 1980-5-25 5250 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  UC176813  Senecio integerrimus var. major Joseph P. Tracy 1913-6-17 4160 Humboldt near the summit Buck Mountain; Northern Coast Ranges 1524 Comment
  UC1223149  Senecio integerrimus var. major Joseph P. Tracy 1946-5-19 17537 Humboldt near Ashland Butte; Kneeland Prairie 762 Comment
  UC1199235  Senecio sylvaticus Joseph P. Tracy 1934-8-31 13652 Humboldt along road through woods Kneeland Prairie Kneeland Prairie 762 Comment
  UC581710  Senecio triangularis Joseph P. Tracy 1932-7-13 10523 Humboldt Corral Prairie , Corral Prairie (Trinity Summit) 1584 Comment
  HSC39967  Senecio vulgaris Linda M. Barker 1976-3-22 1337 Humboldt 3 mi. W of Arcata Comment
  HSC59561  Senecio vulgaris Rick Lundquist 1979-4-27 46 Humboldt N Spit, across from Samoa boat ramp N of U.S. Coast Guard Station. 0 Comment
  SEINET7881647 Image available Senecio vulgaris H. E. Parks, S. T. Parks 1934-1 24234 Humboldt Spruce Cove, Trinidad 61 Comment
  UC333628  Sequoia sempervirens unknown Sept. 1901 Humboldt Eureka Comment
  JEPS12498  Sherardia arvensis W. L. Jepson 1902-6 1936 Humboldt above Korbel Comment
  POM203228  Sherardia arvensis M. S. Jussel 1931-5-2 s.n. Humboldt 20 mi. N. of Garberville. Comment
  HSC12661  Sherardia arvensis J. F. Knezevich 1968-5-21 444 Humboldt 20 mi. E of Arcata on Hwy. 299 at Lord Ellis Summit Comment
  HSC34944  Sherardia arvensis Scott M. Kruse 1975-4-6 1 Humboldt H.B.M. Graham Rd., Bayside 4 Comment
  CHSC96447  Sidalcea malachroides Gordon Leppig; Todd Treadwell 2005-6-8 2248 Humboldt Pacific Lumber Company land. Blue Slide Creek watershed. UTM Zone 10 NAD 1927, 419949E, 4482795N. 245 Comment
  UC1197964  Sidalcea malachroides Joseph P. Tracy 1937-6-20 15358 Humboldt s Ferndale (Wild Cat Ridge); s of Ferndale, Wild Cat Ridge 457 Comment
  UC1197966  Sidalcea malachroides Joseph P. Tracy 1906-6-10 2472 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1222506  Sidalcea malachroides Joseph P. Tracy 1950-6-8 18743 Humboldt one mi e Cape Mendocino (near top of Cape Ridge); e of Cape Mendocino, Cape Ridge 152 Comment
  UC668136  Sidalcea malachroides Joseph P. Tracy 1938-6-15 15938 Humboldt vicinity Carlotta; vicinity of Carlotta 30 Comment
  UC176964  Sidalcea malviflora subsp. patula Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3596 Humboldt near Hydesville; Northern Coast Region, near Hydesville 30 Comment
  HSC104342  Sidalcea oregana subsp. eximia James Regan, Humboldt Redwood Co., LLC 2 Humboldt Table Bluff 46 Comment
  HSC57901  Sidalcea oregana subsp. spicata Gilbert Muth 1979-7-31 11492 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  HSC45617  Silene Diane L. Reed 1978-5-7 45 Humboldt Friday Ridge Road, near intersection with Hwy. 299 Comment
  SEINET11944295  Silene californica L. K. Henry 1971-1 Humboldt Along rt. 36 2 mi E of Dinsmore in Six Rivers National Forest Comment
  UC668089  Silene gallica Joseph P. Tracy 1931-5-3 9350 Humboldt near Blue Lake (along Mad River); , near Blue Lake 15 Comment
  HSC23821  Silene gallica R. A. Vanbianchi 1971-6-14 1 Humboldt Comment
  HSC59744  Silene gallica Clark L. Miller 1979-5-9 6116 Humboldt Samoa Dunes W of Samoa Blvd. Comment
  HSC79418  Silene gallica Kenneth Clark 1980-5-10 637 Humboldt W slopes above Dead Man's Gulch 122 Comment
  JEPS51215  Silene grayi Joseph P. Tracy 1932-7-12 10477 Humboldt head of Brett Hole , head of Brett Hole (Trinity Summit) 1828 Comment
  UC302998  Silene grayi Joseph P. Tracy 1926-6-20 7628 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  UC1198359  Silene hookeri Joseph P. Tracy 1911-7-7 3414 Humboldt between Willow and Campbell Creeks (near the summit Brannan Mountain, viz. ridge n of Willow Creek); Northern Coast Ranges, Brannan Mountain, n of Willow Creek 1219 Comment
  HSC103763  Silene hookeri M. R. Mesler, Sydney Carothers 2013-6-3 1482 Humboldt Near Orleans, ca. 0.6 miles west of NR 15 on FS rd 12N20 790 Comment
  CAS-BOT-BC181220  Silene hookeri subsp. bolanderi Volney Rattan 1883-1-1 s.n. Humboldt Mad River Comment
  RSA29073  Silene hookeri subsp. bolanderi Lincoln Constance, A. A. Beetle 1940-5-17 2612 Humboldt Edge of Quercus Garryana grove, rocky knolls on N slope. McClellan Mtn, near Eureka 823 Comment
  BLMAR151  Silene laciniata subsp. californica Donald Hazlett 1994-6-7 151 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC24398  Silene laciniata subsp. californica J. O. Sawyer 1970-6-24 2228 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  CAS-BOT-BC389050  Silene laciniata subsp. californica J. H. Thomas 1949-6-14 924 Humboldt Salmon River Valley near its junct. with Klamath River Comment
  UC668193  Silybum marianum Joseph P. Tracy 1938-7-6 16026 Humboldt Big Lagoon 12 Comment
  HSC70925  Sisymbrium altissimum R. York 1980-5-18 576 Humboldt Near Black Mtn 792 Comment
  HSC13918  Sisyrinchium bellum J. F. Knezevich 1968-5-23 457 Humboldt N of Trinidad at Big Lagoon 0 Comment
  UC702601  Sisyrinchium bellum C. C. and S. K. Harris 1942-6-9 1219 Humboldt 3 mi n and 1 mi w of Fernbridge 33 Comment
  UC1196381  Sisyrinchium californicum J. P. Tracy 1901-6-10 1125 Humboldt immediate vicinity of Eureka 0 Comment
  SEINET3888098  Smilacina stellata var. sessilifolia Thomas Nelson, James Nelson 1975-5-24 1844 Humboldt Mckeown Ranch north of Dinsmore.; 0 Comment
  HSC38086  Solanum parishii Thomas W. Nelson, James Nelson 1976-5-30 2607 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC21319  Solanum parishii Francis Winter 1960-5-7 Humboldt 1 mi. S of Tish Tang Boys Camp 305 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
  POM280569  Solanum umbelliferum Lyman D. Benson 1928-7-12 463 Humboldt Weott Ranger Station. 61 Comment
  UC1196159  Solanum umbelliferum Joseph P. Tracy 1913-6-20 4219 Humboldt opposite Buck Mountain (in Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  SEINET10872207  Solidago Mary Susan Taylor 1990-8-22 Taylor 6079 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  CAS-BOT-BC365434  Solidago elongata Doris K. Kildale 1926-6-28 2180 Humboldt Big Lagoon Comment
  HSC36596  Solidago elongata J. O. Sawyer, Thomas W. Nelson, Linda M. Barker 1975-9-4 1306 Humboldt Megwill Point on Elkhead, N of Trinidad in Trinidad State Beach 15 Comment
  UCR48861  Solidago occidentalis R. D. Goeden, Don W. Ricker 1987-9-2 7 B Humboldt Carlotta, roadside on state Hwy 36 Comment
  UCSB30587  Sonchus asper Edwards, David 1974-8-12 Humboldt North side of 7th St. just W. of its overpass of U.S. 101, Arcata 18 Comment
  HSC39802  Sonchus oleraceus Peter Sorensen 1976-6-11 Humboldt King Salmon Comment
  HSC23681  Sorbus scopulina J. O. Sawyer 1970-6-26 2302 Humboldt 1860 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
  UC526834  Sorghum halepense Joseph P. Tracy 1925-9-6 7263 Humboldt near the S. Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  CDA776  Sparganium emersum subsp. emersum M. K. Bellue 1932-9-28 Humboldt Arcata. Swale, edge of marsh. 0 Comment
  UC750491  Sparganium emersum var. emersum Henry M. Pollard 1946-8-13 Humboldt near Harley Place (Orleans Region); Orleans Region Comment
  HSC89260  Spartina alterniflora Anni Eicher 1989-4-20 366 Humboldt .5 mi. N of Samoa-Eureka bridge, E of State Hwy. 255, Humboldt Bay Comment
  CAS-BOT-BC235371  Spartina densiflora W. A. Silveus 1938-7-10 2966 Humboldt Eureka Comment
  HSC77898  Spergula arvensis R. D. Modafferi 1965-3-14 8 Humboldt 1.3 mi. S of Trinidad on old Hwy. 101 305 Comment
  CDA3442  Spergularia rubra T. C. Fuller 1958-6-17 599 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC68109  Spergularia rubra J. P. Smith, J. O. Sawyer 1973-5-12 6670 Humboldt 2 mi. from Redwood Creek on Hoopa Rd. Comment
  CAS-BOT-BC149619  Spiraea douglasii Joseph P. Tracy 1937-7-17 15435 Humboldt Eureka 30 Comment
  HSC96475  Spiraea douglasii Gordon Leppig 1997-6-19 457 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  JEPS64496  Spiranthes porrifolia Joseph P. Tracy 1916-6-19 4721 Humboldt Dobbyn Creek Northern Coast Ranges (swampy ground around a pond) 182 Comment
  HSC90473  Spiranthes romanzoffiana Jean Hanson 1980-8-28 124 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka. W end of island between dikes. Comment
  RSA249351  Spiranthes romanzoffiana J. D. Ackerman 1974-8-13 403 Humboldt Ca. 1 mile N of Manila; next to Mad River Slough. 2 Comment
  UC672873  Spirodela polyrhiza Joseph P. Tracy 1932-8-21 10371 Humboldt w slope Chaparral Mt. (Three Cabins Ranch, on e side of Mad River) 457 Comment
  CHSC84693  Stachys ajugoides var. rigida L. P. Janeway 2003-7-26 7922 Humboldt High North Coast Ranges. South side (above) Road 5N04, 0.5 km northeast of the top of Grouse Mountain. 1554 Comment
  HSC99553  Stachys ajugoides var. rigida K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 218 Humboldt Near North Trinity Mtn, 11. 5 mi E of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS62958  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15954 Humboldt Cape Mendocino 152 Comment
  UC1602161  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15954 Humboldt Cape Mendocino 152 Comment
  UC668213  Stachys ajugoides var. rigida Joseph P. Tracy 1938-7-4 15987 B Humboldt Valley of South Yager Creek 762 Comment
  UCLA70844  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-15 15931 Humboldt Fortuna 18 Comment
  UCLA71123  Stachys ajugoides var. rigida H. Lewis 1940-7-3 Humboldt Little River Beach State Park Comment
  POM283279  Stachys bullata Lyman Benson 1928-7-10 s.n. Humboldt Fortuna , Seaward N Coast, Mouth of Eel River. 46 Comment
  SD50775  Stachys emersonii Darley F. Howe 1959-8-4 2803 Humboldt 86 miles west of Weaverville on Highway 299. 152 Comment
  UCLA71113  Stachys mexicana C. Epling, Wm. Robison 1935-7-22 Humboldt Patrick's Point Comment
Read comments
Aug 1 2016
  SEINET200613  Stellaria borealis subsp. sitchana Joseph P. Tracy 27 Jun - 30 Jul 1908 2884 Humboldt Valley of Van Duzen River, opposite Buck Mountain. 762 Comment
  UC1223446  Stellaria borealis subsp. sitchana Joseph P. Tracy 1950-7-6 19020 Humboldt 3 mi s Burr Valley (w side Buck Mountain); Buck Mountain 1158 Comment
  HSC40427  Stellaria media Linda M. Barker 1976-2-22 1320 Humboldt 3 mi. W of Arcata Comment
  HSC35704  Stephanomeria virgata Thomas W. Nelson, B. Reinhardt 1975-7-30 2120 Humboldt Beside private road to Pilot Rock Comment
  UC205170  Stephanomeria virgata subsp. pleurocarpa Joseph P. Tracy 1919-9-14 5187 Humboldt near Mouth of Willow Creek; Northern Coast Ranges, Valley of the Trinity River 152 Comment
  CAS-BOT-BC87607  Streptanthus tortuosus Doris K. Kildale 1928-5-27 5955 Humboldt Kneeland Prairie. 853 Comment
  UC1281747  Streptanthus tortuosus Richard Spellenberg 1965-6-14 1130 Humboldt rocky outcrops in grassland s airport (about 5 mi e of Kneeland) Comment
  UC666814  Suksdorfia ranunculifolia Joseph P. Tracy 1935-7-24 14196 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  UC562306  Swertia radiata Joseph P. Tracy 1932-7-20 10731 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC3999  Symphoricarpos albus var. laevigatus J. E. Lankila 1962-5-14 18 Humboldt W bank of Eel River across from Shively abour 500 ft. N of Bear Creek. Comment
  HSC73239  Symphoricarpos albus var. laevigatus M. A. Baker 1980-5-18 1320 Humboldt Near Black Mountain. 360 Comment
  JEPS12877  Symphoricarpos albus var. laevigatus W. L. Jepson 1932-7-28 16434 Humboldt Dyerville Comment
  UCD137442  Symphoricarpos mollis Joseph P. Tracy 1948-8-15 18144 Humboldt Trinity Summit. On ridge 2 miles east of Grove's Prairie. 1524 Comment
  SBBG60770  Symphyotrichum chilense R. Hartwell 1938-8-6 Humboldt Eureka Comment
  UC892758  Symphyotrichum chilense Milo S. Baker 1931-7-17 5408 Humboldt along Redwood Hwy a few miles s of Eureka Comment
  UC1199308  Symphyotrichum hendersonii Joseph P. Tracy 1935-7-27 14277 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC175193  Symphyotrichum subspicatum Joseph P. Tracy 1913-9-9 4396 Humboldt Big Lagoon 30 Comment
  UC774604  Symphyotrichum subspicatum Carl B. Wolf 1937-9-14 9355 Humboldt 4 mi n, Redwood Highway Loleta 7 Comment
  UC963847  Symphyotrichum subspicatum H. E. Parks and M. Jackson 1941-8-1 24197 Humboldt Big Lagoon North Coast Ranges Comment
  UC213323  Symphytum asperum Joseph P. Tracy June 1919 5181 Humboldt Northern Coast Region, Humboldt Bay, valley of Salmon Creek 30 Comment
  HSC21149  Synthyris reniformis G. N. Bos 1965-5-2 247 Humboldt 8 mi. E of Korbel on Bald Mtn. Rd. 793 Comment
  JEPS26263  Synthyris reniformis Joseph P. Tracy 1924-2-10 6601 Humboldt Bald Mountain at Hungry Hollow; Bald Mountain 762 Comment
  JEPS9930  Synthyris reniformis Lincoln Constance 1934-6-15 882 Humboldt South Fork Eel River (Summit of Grasshopper Peak); Bull Creek Region 975 Comment
  CAS-BOT-BC376723  Tanacetum bipinnatum M. Louise Hutchinson 1913-1-1 s.n. Humboldt Eureka Comment
  CDA8893  Tanacetum camphoratum K. Neander, Gordon Leppig, Sylvia Leppig 1998-5-25 789 Humboldt Big Lagoon State Park, between ocean and Big Lagoon. Comment
  POM289716  Tanacetum douglasii Lyman Benson 1928-7-10 452 Humboldt Clam Beach, Trinidad. 15 Comment
  CAS-BOT-BC376777  Tanacetum parthenium Henry M. Pollard 1947-8-21 s.n. Humboldt Near Camp Creek, Orleans region Comment
  CAS-BOT-BC376832  Tanacetum vulgare Carl B. Wolf 1937-9-12 9330 Humboldt Big Lagoon, So. side along Redwood Highway 6 Comment
  UC1239515  Taraxacum officinale Joseph P. Tracy 1924-5-4 6666 Humboldt Bridgeville Northern Coast Ranges 243 Comment
  HSC6258  Taraxacum officinale Richard Steele 1962-3-4 3 Humboldt 1/2 mi. W of HSC campus 15 Comment
  CAS-BOT-BC85216  Taxus brevifolia Doris K. Kildale 1926-9-9 2685 Humboldt Little Van Duzen River on Bridgeville - Red Bluff Road 640 Comment
  UC502917  Taxus brevifolia Joseph P. Tracy 1927-3-27 7865 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 762 Comment
  HSC56142  Tellima grandiflora G. L. Clifton, Griswold 1979-8-1 11969 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC56241  Tellima grandiflora Walter Overton 1979-8-1 12338 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  HSC75801  Tellima grandiflora Bill Copeland 1980-7-2 355 Humboldt Near Snow Camp Creek 1311 Comment
  UC1198892  Tellima grandiflora Joseph P. Tracy Jul 16 1930-Jul 19 1930 9087 Humboldt near McKay Camp (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC93510  Tellima grandiflora Gordon Leppig, Sylvia Leppig, Kai Neander 1998-5-6 745 Humboldt Hwy. 101 road cut overlooking Big Lagoon 40 Comment
  HSC100622  Thalictrum polycarpum Carl C. Marshall Jun 1887 410 Humboldt Throughout Humboldt County. 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
  HSC101049  Thermopsis robusta Lisa Hoover 1996-5-29 132 Humboldt Red Cap drainage 293 Comment
  CAS-BOT-BC81318  Thuja plicata Carl B. Wolf 1927-8-29 1192 Humboldt 7 mi. S. of Ferndale and Capetown, Bear River Ridge--Mt. Glen Comment
  OBI35885  Thuja plicata David J. Keil 1983-7-1 17294 Humboldt Between Ferndale and Bear River Ridge Rd along Mattole Rd Comment
  RSA46501  Thuja plicata Doris K. Kildale 1927-3-22 2935 Humboldt N Fork of Elk River, Humboldt County Comment
  RSA89625  Thuja plicata E. K. Balls, P. C. Everett 1953-10-13 18653 Humboldt 10.6 mi E of jct of Hwys 101 and 299 between Arcata and Willow Creek. 244 Comment
  SBBG372  Thuja plicata J. W. Howe 1938-3-30 Humboldt Humboldt County [no specific locality] Comment
  UCD134040  Thuja plicata Roman Gankin 1965-8-7 562 Humboldt Near edge of sphagnum bog just north of parking area; Big Lagoon County Park. Comment
  CAS-BOT-BC88319  Thysanocarpus curvipes Doris K. Kildale 1929-4-25 7478 Humboldt Kneeland Prairie. 853 Comment
  UC229825  Thysanocarpus curvipes Joseph P. Tracy 1922-4-30 6032 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, , Willow Creek 152 Comment
  UC161492  Thysanocarpus curvipes Joseph P. Tracy 1903-5-24 1915 Humboldt Alder Point Northern Coast Ranges, Eel River (on Eel River) 152 Comment
  CAS-BOT-BC436916  Tiarella trifoliata var. unifoliata Alice Eastwood; John Thomas Howell 1937-6-23 4777 Humboldt Near Dinsmore's Comment
  HSC64218  Tiarella trifoliata var. unifoliata J. O. Sawyer, M. A. Ericksen 1979-6-23 3383 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC98749  Tiarella trifoliata var. unifoliata Cara Witte 2008-7-7 841 Humboldt National Forest Road 5N10. 2 miles south of intersection with Friday Ridge Road. Near waterhole sign. 1224 Comment
  HSC98805  Tiarella trifoliata var. unifoliata Cara Witte 2008-8-5 994 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles E of intersection with National Forest 1. 1346 Comment
  JEPS49709  Tiarella trifoliata var. unifoliata W. L. Jepson 1927-7-3 12359 Humboldt near Dyerville (Bull Creek); South Fork Eel River, Bull Creek Comment
  JEPS49714  Tiarella trifoliata var. unifoliata Milo S. Baker 1923-7-19 82 c Humboldt canyon near Carlotta; canyon near Carlotta Comment
  UC11935  Tiarella trifoliata var. unifoliata J. Burtt Davy 1899-6-13 5513 Humboldt Redwoods near Camp Grant (along the Eel River); along the Eel River Comment
  UC1212146  Tiarella trifoliata var. unifoliata Francia Chisaki and Helen K. Sharsmith 1959-8-22 4753 Humboldt bog at Happy Camp Happy Camp (just over Trinity County line); Inner North Coast Ranges 914 Comment
  UC667104  Tolmiea diplomenziesii Joseph P. Tracy 1935-7-25 14240 Humboldt Trinity Summit, lower end of Brett Hole Brett Hole; Trinity Summit, Brett Hole 1584 Comment
  HSC100655  Tolmiea menziesii Carl C. Marshall Apr 1885 46 Humboldt Damp woods near streams etc. Comment
  RSA41966  Tolmiea menziesii H. C. Cantelow 1935-6-13 1095 Humboldt East of Arcata. Road to Weaverville. Comment
  JEPS26267  Tonella tenella Joseph P. Tracy 1902-6-3 1666 Humboldt near Hubbards Station (on ridge between Eel River and South Fork); Northern Coast Ranges 609 Comment
  UC906646  Torilis arvensis Joseph P. Tracy 1946-6-15 17557 Humboldt Berry's Mt on Trinity Highway east of Redwood Creek 609 Comment
  HSC45069  Torilis arvensis R. Sutherland 1978-5-16 7 .16578 Humboldt 155 Comment
  UC906658  Torilis nodosa Joseph P. Tracy 1946-6-15 17558 Humboldt Berry's Mountain on Trinity Highway east of Redwood Creek 609 Comment
  RSA12424  Torreyochloa pallida var. pauciflora C. B. Wolf 1934-7-2 5870 Humboldt Small Lake at Snow Camp. (Mountains east of Korbel). 1372 Comment
  UCD93230  Torreyochloa pallida var. pauciflora Joseph P. Tracy 1940-10-5 16742 Humboldt mouth of Little River. 3 Comment
  CAS-BOT-BC169181  Toxicodendron diversilobum Doris K. Kildale 1928-5-31 5114 Humboldt Chalk Mountain Comment
  HSC95682  Toxicodendron diversilobum Steven Lee 2004-4-25 25 Humboldt From Hwy. 299, take South Fork Rd. to County Rd. 341. River access trail is at the end of the road. Comment
  JEPS63914  Toxicodendron diversilobum W. L. Jepson 1932-7-27 16430 Humboldt on way to Bull Creek Dyerville Comment
  HSC99835  Triantha occidentalis subsp. occidentalis T. Jimerson, J. Pageau 1979-8-10 728 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  HSC14449  Trichostema lanceolatum D. E. Anderson 1963-10-6 2878 Humboldt Mad River bed, across from Essex Junction. Comment
  HSC32879  Trientalis latifolia Thomas W. Nelson, James Nelson 1973-5-28 933 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC17932  Trientalis latifolia Francis Winter 1960-4-24 Humboldt 7 mi. W of Hoopa Indian Reservation, Bair Rd. 915 Comment
  HSC17938  Trientalis latifolia Frances Oldridge 1946-1 Humboldt Freshwater Comment
  JEPS43093  Trientalis latifolia Lincoln Constance 1934-6-1 775 Humboldt Mouth of Bull Creek, Bull Creek Road, between Dyerville Bridge and Bull Creek, South Fork Eel River Bull Creek; Bull Creek Region, South Fork Eel River 45 Comment
  SEINET12157031  Trifolium albopurpureum J. P. Tracy 1948-1 17989 Humboldt W side of top of Spruce Grove Ridge near Harris Comment
  UC1197212  Trifolium albopurpureum var. dichotomum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3613 Humboldt near Hydesdale (and Alton); Northern Coast Ranges Comment
  JEPS65949  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1932-5-10 9940 Humboldt 3 mi s Point of Cape Mendocino (sw slopes fronting the ocean); Northern Coast Ranges Comment
  UC1223509  Trifolium barbigerum Joseph P. Tracy 1936-6-9 14883 Humboldt Bear River Ridge 609 Comment
  UC1223516  Trifolium barbigerum Joseph P. Tracy 1933-5-20 12240 Humboldt Petrolia Mattole Valley Comment
  UC1223514  Trifolium barbigerum Joseph P. Tracy 1942-6-15 17120 Humboldt Englewood Prairie Comment
  SEINET6934848  Trifolium bifidum Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie, about 4 miles southeast of Kneeland. Comment
  HSC98729  Trifolium cyathiferum Cara Witte 2007-7-20 565 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1460 Comment
  UC495701  Trifolium cyathiferum Joseph P. Tracy 1932-6-14 10150 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1223466  Trifolium dubium Joseph P. Tracy 1935-5-25 13830 Humboldt Blocksburg Comment
  UC179921  Trifolium dubium Joseph P. Tracy 1914-7-4 4522 Humboldt between Korbel and Angels Ranch roadside; Northern Coast Ranges Comment
  UC631194  Trifolium dubium Mrs. M. H. Manning 1900-1-1 Humboldt near Hupa Comment
  HSC71438  Trifolium dubium J. P. Smith 1973-5-26 6836 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  NY33709  Trifolium elmeri V. K. Chesnut 1888-7-25 s.n. Humboldt Comment
  SEINET12147892  Trifolium eriocephalum J. P. Tracy 1933-1 12647 Humboldt Brannan Mountain 1067 Comment
  UC1223460  Trifolium fragiferum Joseph P. Tracy 1933-8-22 12986 Humboldt 1 mi w Loleta Comment
  HSC15124  Trifolium fucatum Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  OBI4982  Trifolium fucatum Joseph P. Tracy 1950-6-8 18747 Humboldt Cape Ridge. One mi E of Cape Mendocino 152 Comment
  UC495702  Trifolium fucatum Joseph P. Tracy 1927-6-5 8100 Humboldt s Yager Creek (valley); Northern Coast Ranges 762 Comment
  UCSB30618  Trifolium fucatum Edwards, David 1974-8-1 Humboldt Near W bank of Mad River (in bed), N of its jet. with Puter Creek, ca. 300 yds., S of fish hatchery, ca. 2 mi. S.W. of Korbel Comment
  HSC15183  Trifolium gracilentum Norman H. Moe 1962-5-19 Humboldt Lanphere's Place Comment
  POM214890  Trifolium gracilentum Joseph P. Tracy 1932-5-22 10124 Humboldt South fork of Eel River, between Miranda and Redway. Comment
  UC1197198  Trifolium gracilentum J. P. Tracy 1905-4-16 2162 1/2 Humboldt Ocean View Cemetary Eureka 0 Comment
  SDSU5282  Trifolium incarnatum D. F. Howe 1969-6-3 4623 Humboldt 13 miles north of Orick on # 101. Comment
  HSC58628  Trifolium longipes Overton, Butler 1979-7-31 11447 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC58641  Trifolium longipes G. L. Clifton, Griswold 1979-7-31 11637 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  POM214885  Trifolium macraei Joseph P. Tracy 1927-6-8 8114 Humboldt Trinidad. 15 Comment
  UC1223353  Trifolium microdon Joseph P. Tracy 1938-6-8 15864 Humboldt Samoa Sand Dunes Comment
  UC1197504  Trifolium obtusiflorum Joseph P. Tracy 1914-5-30 4480 Humboldt near Hydesville; Northern Coast Ranges 60 Comment
  UC1223339  Trifolium obtusiflorum Joseph P. Tracy 1933-6-11 12555 Humboldt 4 mi s Dyerville (along hwy, along South Fork Eel River) Comment
  HSC45134  Trifolium oliganthum R. Sutherland 1978-5-21 2 .21578 Humboldt 433 Comment
  UC160937  Trifolium oliganthum Joseph P. Tracy 1903-5-23 1895 Humboldt Alder Point Eel River; Northern Coast Ranges 152 Comment
  HSC15158  Trifolium pratense W. F. Nickel 1965-5-16 Humboldt N Arcata next to the Humboldt Motor Hotel. Comment
  SD90164  Trifolium repens Benjamin C. Stone 1952-6-21 117 Humboldt Stone Lagoon on Hwy 101 14 Comment
  HSC45113  Trifolium repens R. Sutherland 1978-5-17 1 .17578 Humboldt 305 Comment
  HSC48608  Trifolium repens Mark Flippo 1978-4-18 11 Humboldt Mckinleyville, Bella Vista Rd. Comment
  UC165592  Trifolium variegatum var. variegatum Harley P. Chandler May, 1901 1169 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC1197562  Trifolium variegatum var. variegatum Joseph P. Tracy 1927-6-17 8283 Humboldt lower w foothills of Chaparral Mtn (Three Cabins); Northern Coast Ranges 457 Comment
  RSA32731  Trifolium wormskioldii A. A. Heller 1923-7-9 13781 Humboldt Near Arcata. Comment
  UC1223510  Trifolium wormskioldii Joseph P. Tracy 1932-6-9 14882 Humboldt Bear River Ridge 609 Comment
  UC1197038  Trifolium wormskioldii Joseph P. Tracy 1913-6-25 4336 Humboldt Dinsmore's Ranch Northern Coast Ranges (in valley of Van Duzen River opposite Buck Mtn) 762 Comment
  UC1223524  Trifolium wormskioldii Joseph P. Tracy 1936-5-29 14828 Humboldt 4 mi e Orick; Grans Prairie 548 Comment
  SEINET10577442  Trifolium wormskioldii var. wormskioldii Joseph P. Tracy 1911-6-25 Tracy 3246 Humboldt At Eureka 0 Comment
  SEINET10862710  Trifolium wormskioldii var. wormskioldii A. Arthur Heller 1924-7-23 Heller 13876 Humboldt Wet soil in a ditch along the road leading to the lighthouse on Trinidad Head. Comment
  HSC90807  Triglochin maritima Gail Newton 1982-5-2 2510 Humboldt Elk River Wildlife Area, Eureka Comment
  SEINET10745910  Triglochin striata J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13019 Humboldt North of McKinleyville off U.S. 101 (a few kilometers north of Eureka), Clam Beach County Park. Comment
  HSC65512  Trillium albidum M. A. Baker 1980-6-8 1909 Humboldt Near Buck Flat. 1554 Comment
  UCD139896  Trillium albidum R. N. Raynor 1935-3-13 s.n. Humboldt Fort Seward. Comment
  UC1222529  Trillium albidum Joseph P. Tracy 1950-4-20 18615 Humboldt 2 mi. w. Dinsmosre's (lower foothills of n.w. slope of Buck Mt.); Buck Mt. 762 Comment
  CHSC24865  Trillium ovatum W. A. Vaccaro 1976-4-4 1 Humboldt Population ca. 300 yds ne of intersection of Cedar St. and W. St., Cutten. 45 Comment
  HSC34878  Trillium ovatum R. M. Sullivan 1975-4-9 5 Humboldt 40 yds. S of Fern Lake, HSU, Arcata Comment
  SD112794  Trillium ovatum Darley F. Howe 1963-5-26 3557 Humboldt 3.7 miles east of Orick, on Bald Hill Road. 487 Comment
  SEINET12051379  Trillium ovatum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -289 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  SEINET3888797  Trillium ovatum S. R. Johnson 1965-3-19 15 Humboldt 2 miles north of Luffenholtz Beach.; 0 Comment
  UC709437  Trillium ovatum Joseph P. Tracy 1941-4-8 16855 Humboldt at head of Willow Creek; Willow Creek Canyon, Willow Creek 762 Comment
  CAS-BOT-BC521251  Trillium rivale J. H. Thomas 1949-6-12 897 Humboldt 2 miles west of Matins Ferry on road to Orick. Comment
  SEINET10458968  Triodanis biflora Chesnut CHESNUT s.n. Humboldt KNEELAND, CAMPBELLS Comment
  JEPS884  Triphysaria eriantha subsp. eriantha Harley P. Chandler May, 1901 1142 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 3 Comment
  HSC40372  Triphysaria pusilla Linda M. Barker 1976-4-30 1425 Humboldt 3 mi. W of Arcata Comment
  UC1133275  Trisetum canescens H. S. Yates 1936-6-17 5704 Humboldt lower nw slope Buck Mountain; South Fork Peak Quad. 792 Comment
  UC1541569  Trisetum canescens Harold E. Parks Jun 1934 1987 Humboldt Spruce Cove; Trinidad Comment
  UC187232  Trisetum canescens J. P. Tracy 1903-5-22 1877 Humboldt Alder Point Eel River (on Eel River) 152 Comment
  UC552772  Trisetum canescens Joseph P. Tracy 1934-6-27 11074 Humboldt Grouse Mt.; Northern Coast Ranges 1432 Comment
  UC1056032  Trisetum cernuum H. E. and S. T. Parks June 1952 7551 Humboldt Spruce Cove; Trinidad 60 Comment
  UC526696  Trisetum cernuum Joseph P. Tracy 1926-6-6 7557 Humboldt near summit on road w from Hoopa to Bair's Hoopa Mountain; Northern Coast Ranges 1066 Comment
  UCD93906  Trisetum cernuum R. Tofsrud 1949-7-1 s.n. Humboldt On road between Scotia and Capetown. Comment
  JEPS5665  Triteleia bridgesii W. L. Jepson Jul 16 1902-Jul 23 1902 2006 Humboldt Hupa to Mud Spring; Trinity Summit 1219 Comment
  CAS-BOT-BC519143  Triteleia hyacinthina M. S. Jussel 1931-5-2 s.n. Humboldt 20 miles north of Garberville Comment
  UC1197709  Triteleia hyacinthina Joseph P. Tracy 1927-7-4 8239 Humboldt Lone Star Creek Iaqua Region, Lone Star Creek 609 Comment
  HSC3059  Triteleia laxa Lincoln Constance 1934-5-29 710 Humboldt Upper Look Prairie; South Fork Eel River 366 Comment
  SEINET200770  Triteleia laxa Joseph P. Tracy 1927-5-30 8094 Humboldt Garberville 152 Comment
  HSC3060  Triteleia laxa R. Spellenberg 1964-6-15 416 Humboldt 7 mi. E of Redwood Creek, Hwy. 299 Comment
  UC1197720  Triteleia laxa J. P. Tracy 1901-6-23 1188 Humboldt fields near Ryans Slough Hill; immediate vicinity of Eureka 0 Comment
  UC666896  Triteleia laxa Joseph P. Tracy 1938-7-5 16001 Humboldt in woods by old Strong's District School House (5 mi e of Carlotta) 45 Comment
  CAS-BOT-BC85895  Tsuga heterophylla G. A. Coleman 1901-7-20 s.n. Humboldt Near Acorn Comment
  RSA648962  Tsuga heterophylla David J. Keil 1983-7-2 17305 Humboldt Freeway exit from US 101 at Patrick s Point. Comment
  UC162948  Tsuga heterophylla Joseph P. Tracy 1911-6-4 3233 Humboldt along Little River Northern Coast Region, Little River (5 mi from the coast) 121 Comment
  SEINET12102546  Umbellularia californica J. P. Tracy 1950-1 18600 Humboldt Vicinity of Carlotta 30 Comment
  UC1239525  Uropappus lindleyi Joseph P. Tracy 1921-4-24 5462 Humboldt slopes and open groves South Fork Eel River (Phillipsville); Northern Coast Ranges, , Phillipsville 121 Comment
  UC1197778  Vaccinium cespitosum Joseph P. Tracy 1925-7-5 7176 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  CAS-BOT-BC199313  Vaccinium ovatum John McLaren 1920-9-1 s.n. Humboldt Unspecified Comment
  HSC26397  Vaccinium ovatum T. O. Osborne 1970-9-16 31 Humboldt Trinidad Bay, Prisoner Rock Comment
  HSC91895  Vaccinium ovatum E. Mackey 1986-10-7 Humboldt Patricks Point State Park, Palmer's Point Rd. Comment
  RSA697564  Vaccinium ovatum J. R. Bruff 1937-8-17 928 Humboldt Richardson Grove. Comment
  UC1193355  Vaccinium ovatum P. Zinke 1950-9-21 165 Humboldt se slope Kerr Peak (Quad 29C2) 609 Comment
  CDA38877  Vaccinium ovatum Gordon Leppig 1998-6-26 854 Humboldt McKinleyville, Rte 101 at Mad River Overlook. Comment
  CAS-BOT-BC199412  Vaccinium parvifolium E. K. Balls 1949-7-11 13973 Humboldt 35 miles west of Willow Creek on Hwy 299 to Arcata 152 Comment
  CAS-BOT-BC199415  Vaccinium parvifolium Harley P. Chandler 1901-5-1 1182 Humboldt Humboldt Bay 30 Comment
  LA44792  Vaccinium parvifolium Carl Epling; William Robison 1935-7-22 sn Humboldt Patrick's Point Comment
  UC1197780  Vaccinium parvifolium Joseph P. Tracy 1931-4-26 9341 Humboldt Willow Creek Canyon Northern Coast Ranges 609 Comment
  UC1225909  Vaccinium parvifolium Joseph P. Tracy 1943-3-14 17410 Humboldt Vicinity Carlotta 30 Comment
  UC1225910  Vaccinium parvifolium Joseph P. Tracy 1945-3-10 17495 Humboldt Eureka 30 Comment
  POM59403  Valeriana sitchensis subsp. scouleri Ethel Tracy 1917-6-12 s.n. Humboldt Scotia bluff, along Eel River from South Fork to Scotia. 61 Comment
  UC1239585  Valeriana sitchensis subsp. sitchensis E. Ethel Tracy 1919-8-1 Humboldt Trinity Summit; Northern Coast Ranges; Trinity Summit 1524 Comment
  HSC58189  Vancouveria hexandra G. L. Clifton, Griswold 1979-8-2 12280 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC3386  Vancouveria hexandra D. B. Bader 1963-5-15 50 Humboldt .25 mi. up Jolly Giant Creek from HSU men's dormitory Comment
  HSC3388  Vancouveria hexandra M. T. Milligan 1964-5-14 Humboldt 3 mi. N on Essex Ln. Comment
  HSC37714  Vancouveria hexandra J. D. Ackerman, A. M. Montalvo 1974-7-17 375 Humboldt Redwood Grove, E of Van Duzen Co. Park, off Hwy. 36, E of Carlotta 61 Comment
  HSC99004  Vancouveria hexandra Cara Witte 2008-8-16 1026 Humboldt Ammon Ridge Road. Approximately 1/4 mile east of intersection with National Forest 1. 1548 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-BC76096  Vancouveria planipetala Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta. Comment
  HSC70723  Vancouveria planipetala Gail Newton 1980-7-14 1517 Humboldt Near Deadman Ridge 1097 Comment
  HSC97659  Vancouveria planipetala Danny Pineda 2001-5-3 26 Humboldt 3 mi. E of Hwy. 299 on West End Rd. 61 Comment
  UC34905  Vancouveria planipetala Chesnut and Drew July 1888 Humboldt Comment
  HSC102701  Ventenata dubia J. P. Smith 2013-6-16 13729 Humboldt Along State Route 36, just west of the 33.68 highway sign (milepost). 758 Comment
  UC902013  Veratrum californicum var. californicum H. E. Parks and J. P. Tracy 1949-6-25 11676 Humboldt meadow Trinity Summit, Box Camp 1463 Comment
  UC1173644  Veratrum insolitum Joseph P. Tracy 1929-7-4 8636 Humboldt French Camp Ridge 1066 Comment
  UC1225851  Veratrum insolitum Joseph P. Tracy 1948-9-12 18213 Humboldt 1 mi w Box Camp; Trinity Summit 1371 Comment
  HSC98931  Veratrum viride Cara Witte 2007-7-19 549 Humboldt Forest Service Road 4N32. 1.5 miles east of intersection with 4N70. Grouse Mountain Lookout. 1547 Comment
  HSC75560  Verbena lasiostachys J. O. Sawyer, R. J. Cole 1977-7-3 3013 Humboldt Environs of Mud Spring, Big Hill Rd. (F.S. 8N01) 1524 Comment
  CDA30190  Veronica americana M. K. Beyers, I. Shepardson 2009-9-13 241 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
  HSC55630  Veronica americana Walter Overton, Marvin Butler 1979-7-24 9628 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC56222  Veronica americana G. L. Clifton, Terry Griswold 1979-8-2 12254 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC64192  Veronica americana J. O. Sawyer, M. A. Ericksen 1979-6-23 3376 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  JEPS16845  Veronica americana W. L. Jepson 1932-7-30 16452 Humboldt Bull Creek 121 Comment
  RSA46832  Veronica americana Doris K. Kildale 1926-5-9 1988 Humboldt Kneeland Prairie. Comment
  RSA12557  Veronica americana Carl B. Wolf 1934-7-2 5882 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  UC147898  Veronica peregrina subsp. xalapensis J. P. Tracy 1909-5-23 2976 Humboldt immediate vicinity of Eureka 0 Comment
  HSC97553  Veronica peregrina subsp. xalapensis Cara Witte 2007-5-31 166 Humboldt Buck Flat. 1547 Comment
  UCR143251  Veronica scutellata C. B. Wolf 1937-6-18 8895 Humboldt North Coast, 0.5 mi south of Fortuna 15 Comment
  OBI9217  Veronica scutellata Carl B. Wolf 1937-6-18 8895 Humboldt 1/2 mi S of Fortuna 15 Comment
  RSA245256  Veronica scutellata John R. Keith 1973-5-15 s.n. Humboldt Approximately 200 yards east of jct of Guintoli Ln. and West End Road. Comment
  HSC12789  Veronica serpyllifolia subsp. humifusa Jana Kattenhorn 1970-10-28 152 Humboldt Mad River at the mouth of Lindsey Creek, N Bank Rd. off Hwy. 299 Comment
  HSC15258  Vicia americana var. americana J. P. Tracy 1935-5-26 13908 Humboldt Iaqua 610 Comment
  UC180235  Vicia americana var. americana Joseph P. Tracy 1914-5-30 4482 Humboldt near Hydesville; Northern Coast Ranges 30 Comment
  UC709401  Vicia americana var. americana Joseph P. Tracy 1939-7-9 16333 Humboldt Snow Camp 1402 Comment
  BLMAR723  Vicia gigantea Jennifer Wheeler 2014-4-20 723 Humboldt South Spit/Mike Thompson Wildlife Area, South Jetty Rd on Table Bluff cliff face 3 Comment
  HSC89513  Vicia gigantea M. Roantree 1985-4-25 7 Humboldt E side of Trinidad Head Comment
  HSC15270  Vicia gigantea W. F. Nickel 1965-5-15 Humboldt 1/4 mi. E of Arcata on road to Arcata Reservoir Comment
  UC1222589  Vicia hirsuta Joseph P. Tracy 1943-7-1 17428 Humboldt Eureka; 7th and I Streets, vacant lot Comment
  UC198656  Vicia hirsuta Joseph P. Tracy 1916-5-31 4689 Humboldt Stitz Creek Northern Coast Ranges, Eel River (along Eel River from South Fork to Scotia) 60 Comment
  HSC89603  Vicia sativa subsp. nigra M. Roantree 1985-4-28 23 Humboldt E side of Trinidad Head, along dirt road Comment
  HSC71620  Vicia tetrasperma J. P. Smith 1973-5-26 6809 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC49921  Vinca major Maralyn O'Meara 1973-2-9 126 Humboldt McKinleyville, N side of Mad River along N Bank Rd., 0.5 mi. E of Hwy. 101 Comment
  BLMAR258  Viola adunca Jennifer Anthony-Wheeler 1998-4-22 258 Humboldt King range, strawberry rock grazing allotment 280 Comment
  CAS-BOT-BC263940  Viola adunca C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  HSC21769  Viola adunca Wm. F. Bowman 1968-10-26 Humboldt Big Lagoon Co. Park, SW corner of Big Lagoon; side of road near parking lot Comment
  HSC96079  Viola adunca Andrew Byers, Stuart E. Richardson, III 2005-6-10 8 Humboldt 7.4 mi. S of Hwy. 299 on NF1; Coldspring Camp 1357 Comment
  UC1761536  Viola adunca Mrs. Wilder 1926-4 5432 Humboldt Carlotta, Mrs. Wilder's yard Comment
  HSC89593  Viola adunca var. adunca M. Roantree 1985-5-2 27 Humboldt W side of Trinidad Head, W of trail Comment
  HSC48825  Viola bakeri Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 36 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  HSC31194  Viola cuneata D. E. Anderson 1972-6-20 5749 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC85894  Viola cuneata Barry Silver 1986-4-13 512 Humboldt Bair Road, 6.4 mi. WSW of Hoopa Comment
  HSC41239  Viola cuneata Brad Klipfel 1974-5-27 378 Humboldt Horse Mtn. NW of the towers Comment
  HSC39625  Viola glabella Thomas W. Nelson, Jane P. Nelson 1976-6-15 2729 Humboldt Along old trail from look out to Blocksburg 1585 Comment
  HSC48637  Viola glabella Mark Flippo 1978-5-21 81 Humboldt USFS Rd. 8N20 Comment
  RSA46691  Viola hallii Doris K. Kildale 1938-6-5 15398 Humboldt Horse Mountain Comment
  HSC21822  Viola ocellata D. E. Anderson 1965-5-1 3557 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  UC249588  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1922-5-29 6067 Humboldt Head of South Yager Creek; Northern Coast Ranges, South Yager Creek Comment
  RSA261422  Viola praemorsa subsp. praemorsa Suzanne May 1967-4-15 36 Humboldt Kneeland Road, 2 miles E of Bridgeville. 183 Comment
  HSC71831  Viola purpurea subsp. purpurea Thomas W. Nelson, Jane P. Nelson 1980-6-27 5959 Humboldt Saddle E of Mt. Lassic 1677 Comment
  UCR37515  Viola sempervirens C. G. Phillips, L. Cole, S. A. Haultain, K. B. Barrows 1984-5-27 109 Humboldt Onion Mountain, Rd. 13 Nol, 7.0 mi west of Bluff Creek (SR 96) 1300 Comment
  SEINET11978067  Viola sempervirens Unknown 1936-1 113398 Humboldt Comment
  HSC79420  Vulpia bromoides Kenneth Clark 1980-4-18 584 Humboldt On western bluffs above Dead Man's Gulch. 137 Comment
  HSC9835  Vulpia bromoides R. H. Berg 1963-3-9 6 Humboldt Fickle Hill area, Arcata. Comment
  HSC9905  Vulpia microstachys D. E. Anderson 1965-5-8 3648 Humboldt About 3 mi. N of Willow Creek along rd. on E side of Trinity River. Comment
  UCD93869  Vulpia microstachys var. ciliata Joseph P. Tracy 1936-7-5 15038 Humboldt Grouse Mountain. Comment
  UC1103721  Vulpia microstachys var. pauciflora Joseph P. Tracy 1926-5-15 7478 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC1145194  Vulpia microstachys var. pauciflora Joseph P. Tracy 1936-6-17 14961 Humboldt nw slope Buck Mountain (Burr Valley); , Burr Valley 1066 Comment
  HSC70350  Vulpia myuros M. A. Baker 1980-6-7 1810 Humboldt Near Brush Mtn. 1128 Comment
  HSC79517  Vulpia octoflora var. octoflora Kenneth Clark 1980-3-24 543 Humboldt Shelter Cove, N fork of Dead Man's Gulch. 76 Comment
  HSC24392  Whipplea modesta J. O. Sawyer 1970-6-24 2237 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC48479  Whipplea modesta Brad Klipfel 1974-9-17 580 Humboldt Horse Mtn. area Comment
  HSC67508  Whipplea modesta J. P. Smith, J. O. Sawyer 1973-5-12 6705 Humboldt 10.4 mi. from Redwood Creek on Hoopa Rd. Comment
  CAS-BOT-BC382922  Wyethia angustifolia Volney Rattan 1879-1-1 s.n. Humboldt Unspecified Comment
  HSC35597  Wyethia angustifolia Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2008 Humboldt French Camp, Bald Hills 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
  CAS-BOT-BC326976  Wyethia longicaulis Joseph P. Tracy 1938-7-7 16041 Humboldt Grouse Mountain 1524 Comment
  UC15054  Zigadenus micranthus var. micranthus Joseph Burtt Davy 1899-6-10 5391 Humboldt Hubbard's Station Comment



  Copyright © 2019 Regents of the University of California — Updated 11 January 2019
0.18 processing seconds