Search Results — 2000 specimen records retrieved (1357 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)
Results for search: County=HUMBOLDT; Source=All;   
Map/download results:
BerkeleyMapper with layers and yellow flags
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.
A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC102605  Abies concolor M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1592 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC55121  Abies concolor G. L. Clifton, Griswold 1979-8-1 11916 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  CAS-BOT-BC383848  Abronia latifolia W. R. Dudley 1899-6-1 s.n. Humboldt Samoa Comment
  HSC37927  Abronia latifolia Peter Sorensen 1976-5-28 Humboldt N spit Comment
  CAS-BOT-BC383851  Abronia latifolia Ira L. Wiggins 1932-7-19 5888 Humboldt Near Clam Beach, eight mi. north of Arcata Comment
  HSC59682  Abronia latifolia George Kirn 1977-10-14 Humboldt Dunes .5 mi. NW of Samoa 8 Comment
  HSC69787  Abronia latifolia R. Kalal 1979-5-27 35 Humboldt Along Samoa Blvd. 3 Comment
  RSA0025084  Abronia latifolia Robert F. Thorne 1957-9-3 19012 Humboldt Little River Beach, few miles S of Trinidad. Comment
  SEINET11941806  Abronia latifolia K. S. Erdman 1970-1 4811 Humboldt Gold Bluffs Beach about 3 mi NW of Berry Glen on US 101, Prairie Creek State Park Comment
  CAS-BOT-BC436986  Acaena novae-zelandiae D. W. Cooper 1967-6-30 s.n. Humboldt On ridge just southeast of Forest Service Nursery, ca. 2 miles southeast of Crannell and ca. 4 miles east of U.S. Highway 101 Comment
  CDA40634  Acaena novae-zelandiae T. C. Fuller 1966-10-4 15236 Humboldt 1 mile northwest of Fieldbrook. 0 Comment
  HSC100371  Acaena novae-zelandiae J. McRae 2010-6-18 Humboldt McKinleyville, USFS Humboldt Nursery. Comment
  SBBG34169  Acaena novae-zelandiae D. W. Cooper 1966-10-10 Humboldt ridge just SE of USFS Nursery, ca. 2 mi SE of Crannell and ca. 4 mi E of US Hwy 101 Comment
  CAS-BOT-BC330607  Acer glabrum var. glabrum Joseph P. Tracy 1949-8-26 18530 Humboldt Trinity Summit, head of Little Hors-Linto Creek 1371 Comment
  HSC57459  Acer glabrum var. torreyi G. L. Clifton, Griswold 1979-7-26 10292 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC2817  Acer macrophyllum D. E. Anderson 1962-3-17 1933 Humboldt 3 mi. W of Bridgeville along Hwy. 36 Comment
  UC1199012  Acer macrophyllum Joseph P. Tracy 1912-3-31 3569 Humboldt near mouth Lindsey Creek (Mad River); Northern Coast Ranges, Mad River 30 Comment
  HSC37924  Achillea millefolium Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  HSC4569  Achillea millefolium Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  HSC53792  Achillea millefolium Griswold, Butler 1979-7-10 6204 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  UC1222920  Achillea millefolium Joseph P. Tracy 1949-8-4 18418 Humboldt in serpentine area Mud Springs; Trinity Summit 1341 Comment
  UC203890  Achlys californica Joseph P. Tracy 1918-5-28 4951 Humboldt High Prairie on Bald Mt. Northern Coast Ranges, Bald Mt. 1066 Comment
  UC854590  Achlys californica Elizabeth Parsons Hawver June 1915 Humboldt Carlotta Comment
  UC9738  Achlys californica Harley P. Chandler June, 1901 1293 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 182 Comment
  CAS-BOT-BC400016  Achlys triphylla Alice Eastwood; John Thomas Howell 1937-6-23 4834 Humboldt 4 miles nw. of Yager Comment
  HSC3340  Achlys triphylla Lincoln Constance 1934-6-1 773 Humboldt S Fork Eel River, Bull Creek Rd. between Dyerville Bridge and Bull Creek Flat Grove. 46 Comment
  UC1541542  Achnatherum lettermanii Harold E. Parks July 1934 4926 Humboldt Grouse Mountain 1371 Comment
  CAS-BOT-BC216443  Achnatherum occidentale subsp. californicum Doris K. Kildale 1925-8-17 1258 Humboldt Trinity Summit 1917 Comment
  UC552728  Achnatherum occidentale subsp. occidentale Joseph P. Tracy 1935-7-26 14272 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  CAS-BOT-BC30421  Achyrachaena mollis Doris K. Kildale 1928-5-19 5116 Humboldt Chalk Mountain Comment
  UCD103751  Acmispon denticulatus Bill Brooks 1948-6-1 s.n. Humboldt Van Duzen River, 3 mi. W of Bridgeville. Comment
  HSC45024  Acmispon micranthus R. Sutherland 1978-4-23 18 .23478 Humboldt Near head of Kinsey (Fraser) Ridge 732 Comment
  HSC98305  Acmispon micranthus J. R. Woodside 1963-5-1 24 Humboldt 1.25 mi. N of Fairhaven Comment
  BLMAR154  Acmispon parviflorus Donald Hazlett 1994-6-7 154 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  RSA20784  Aconitum columbianum Carl B. Wolf 1937-8-13 9249 Humboldt North coast range, 11 mi. E. of Hoopa Valley on new road toward Trinity Summit. 1524 Comment
  HSC4593  Adenocaulon bicolor Lincoln Constance 1934-5-29 734 Humboldt Upper Look Prairie; South Fork Eel River 366 Comment
  SEINET200720  Adenocaulon bicolor Joseph P. Tracy 1932-7-17 10650 Humboldt Trinity Summit. Fir woods near Corral Prairie 1580 Comment
  CAS-BOT-BC62296  Adiantum aleuticum J. H. Thomas 1949-6-12 903 Humboldt Under bridge on Boyce Creek, near Klamath River (near town of Orleans) Comment
  HSC948  Adiantum aleuticum W. R. Supernaugh, Jr. 1964-12-4 12 Humboldt Along rd. to Jolly Giant Reservoir Comment
  JEPS35154  Adiantum aleuticum Joseph P. Tracy 1925-11-25 7324 Humboldt near s fork Trinity River Valley; Northern Coast Ranges 182 Comment
  HSC57997  Ageratina occidentalis G. L. Clifton, Griswold 1979-7-31 11763 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  RSA168824  Ageratina occidentalis Joseph P. Tracy 1950-7-31 19223 Humboldt In woods, Friday Ridge 1220 Comment
  SEINET202624 Image available Agoseris grandiflora Joseph P. Tracy 1942-7-18 17276 Humboldt Garberville north end of town. Comment
  UC582758  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1929-7-4 8621 Humboldt French Camp Ridge French Camp Ridge 1066 Comment
  HSC56444  Agoseris heterophylla Griswold, Butler 1979-7-12 7191 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC73528  Agoseris heterophylla Gail Newton 1980-7-14 1458 Humboldt Near Last Chance Ridge. 1219 Comment
  UC1145067  Agrostis densiflora Joseph P. Tracy 1936-6-8 14873 Humboldt clay bluff close to ocean shore Trinidad 3 Comment
  CAS-BOT-BC127284  Agrostis exarata Joseph P. Tracy 1927-7-17 8285 Humboldt Northern Coast Ranges. Three Cabins. Chaparral Mountain. 457 Comment
  UC184150  Agrostis exarata Joseph P. Tracy 1912-7-21 3785 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC186905  Agrostis exarata Joseph P. Tracy 1904-7-10 2119 Humboldt Eureka Northern Coast Region 0 Comment
  UC249865  Agrostis exarata Joseph P. Tracy 1924-7-13 6729 Humboldt in bog Northern Coast Region, Big Lagoon 6 Comment
  UC526895  Agrostis exarata Joseph P. Tracy 1933-7-20 12809 Humboldt along river near Blue Lake; Mad River 15 Comment
  BLMAR533  Agrostis hallii Jennifer Wheeler 2009-6-23 533 Humboldt King range, On King Peak road Comment
  CAS-BOT-BC139494  Agrostis hallii Doris K. Kildale 1927-6-25 3545 Humboldt Shelter Cove. Comment
  HSC58756  Agrostis idahoensis Overton, Butler 1979-7-24 9800 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  UCD52793  Agrostis idahoensis A. H. Murphy 1951-8-17 89 Humboldt Humboldt - Trinity County Line: Racetrack Springs, South Fork Mtn., 15 miles northeast of Bridgeville. 1219 Comment
  UC186902  Agrostis microphylla Joseph P. Tracy 1900-7-4 875 Humboldt Ocean Beach at Humboldt; Northern Coast Region, Ocean Beach, Humboldt Bay Comment
  UC552750  Agrostis oregonensis Joseph P. Tracy 1934-7-13 13392 Humboldt Dows Prairie North Coast Ranges 60 Comment
  CAS-BOT-BC139060  Agrostis pallens Doris K. Kildale 1925-8-17 1261 Humboldt Trinity Summit. 1917 Comment
  CHSC36406  Agrostis stolonifera Donald M. Burk 1981-7-25 54 Humboldt At junction of Rd. 5N10 and Rd. 5N10C. 1249 Comment
  UCD53462  Agrostis stolonifera P. B. Kennedy 1928-7-16 s.n. Humboldt Sea Cliffe, near Trinidad. Comment
  JEPS75413  Agrostis viridis W. L. Jepson 1932-7-26 16410 Humboldt Bull Creek 106 Comment
  SEINET186044  Aira caryophyllea H. E. Parks, S. T. Parks 5850 Humboldt Spruce Cove Trinidad Comment
  UC1103297  Aira caryophyllea Joseph P. Tracy 1923-6-24 6359 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  CAS-BOT-BC138330  Aira caryophyllea var. caryophyllea Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  CAS-BOT-BC138334  Aira caryophyllea var. caryophyllea David D. Keck 1948-7-1 5972 Humboldt South side of Big Lagoon. Comment
  CAS-BOT-BC138197  Aira praecox Joseph P. Tracy 1925-5-24 7013 Humboldt Northern Coast Ranges. Eureka. 60 Comment
  UC194898  Alisma plantago-aquatica Joseph P. Tracy 1916-6-19 4724 Humboldt Dobbyn Creek Northern Coast Ranges 182 Comment
  CAS-BOT-BC459419  Allium acuminatum Harley P. Chandler 1901-6-1 1349 Humboldt Hupa Indian Reservation, North Coast Ranges 152 Comment
  HSC73663  Allium campanulatum M. A. Baker 1980-7-15 2974 Humboldt Near Whiting Ridge. 1341 Comment
  UC1198201  Allium falcifolium Joseph P. Tracy 1933-7-25 12891 Humboldt Grouse Mountain 1524 Comment
  UCR45835  Allium falcifolium Thomas W. Nelson 1977-6-15 3446 Humboldt North Coast Range, [Horse Mountain] along old road to ski area 1372 Comment
  HSC65876  Allium hoffmanii Gail Newton 1980-7-11 1309 Humboldt Near Red Mtn. 1341 Comment
  UCD138544  Allium hoffmanii Thomas W. Nelson; James L. Nelson 1980-6-10 5417 Humboldt along road to Red Mountain 0.5 mile west of junction with Swayback Ridge Road. 1371 Comment
  HSC56339  Allium serra Griswold, Butler 1979-7-10 6224 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  UCR275114  Allium triquetrum Charity A. Hartshorn 2016-4-24 08 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  CAS-BOT-BC476626  Allium unifolium A. M. Vollmer; L. Beane 1951-6-11 138 Humboldt Horse Mountain-Shelter Cove Road Comment
  SACT002769  Alnus oregona J. Clark 1972-4-22 Humboldt 26 miles north of Eureka on Highway 101. Roadwood Forest. Comment
  RSA46862  Alnus rhombifolia Doris K. Kildale 1926-9-9 2686 Humboldt Little Van Dusen, near bridge on Bridgeville, Low Gap Road. 640 Comment
  HSC62778  Alnus rubra M. Dean Griswold Jr. 1979-5-30 89 Humboldt Along rd. up Jolly Giant Creek Comment
  POM106497  Alnus rubra Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  RSA86980  Alnus rubra F. W. Peirson 1926-7-13 7045 Humboldt South of Orick. Comment
  UC184154  Alopecurus aequalis Joseph P. Tracy 1912-7-31 3904 Humboldt n.w. slope Buck Mt.; Northern Coast Ranges, Burr Valley, Buck Mt. 1066 Comment
  CAS-BOT-BC138016  Alopecurus geniculatus Joseph P. Tracy 1933-7-20 12802 Humboldt North Coast Ranges. Arcata Bottom. 15 Comment
  UCD55903  Alopecurus geniculatus Joseph P. Tracy 1951-6-21 19524 Humboldt Hydesville, back of Everett Beck house (formerly George Fray), bed of former Goose Lake. Comment
  UC677555  Alopecurus saccatus A. A. Beetle with Stebbins and Tracy May 1942 3464 Humboldt 1 mi. e. Alton Comment
  SEINET10473459  Ambrosia Mary Susan Taylor 1990-8-22 Taylor 6076 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  HSC35627  Ambrosia chamissonis Thomas W. Nelson, James Nelson 1975-8-5 2140 Humboldt Along south spit of Humboldt Bay ca. 1 mile N. of Table Bluff Comment
  HSC46976  Ambrosia chamissonis J. P. Smith, Thomas W. Nelson 1977-6-30 9224 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  UCD128769  Ambrosia chamissonis Linda M. Barker 1976-8-2 1674 Humboldt 3 miles west of Arcata. Comment
  HSC35865  Ambrosia chamissonis Thomas W. Nelson, James Nelson 1975-8-5 2129 Humboldt Along S spit of Humboldt Bay adjacent to jetty Comment
  RSA264507  Ambrosia chamissonis var. chamissonis H. E. Parks 1941-09 24214 Humboldt Mouth of Little River Comment
  HSC100625  Amelanchier alnifolia Carl C. Marshall Jun 1886 292 Humboldt Bald Hills. Comment
  OBI35862  Amelanchier utahensis David J. Keil 1983-7-2 17332 Humboldt Horse Mtn Summit SW of Willow Crk Comment
  CHSC33078  Ammophila arenaria J. P. Smith; T. W. Nelson 1977-6-30 9201 Humboldt Samoa Peninsula just east of the drag strip. Comment
  RSA0090986  Amsinckia intermedia H. E. Parks, J. Tracy 1930-5-25 881 Humboldt Near Bridgeville. Comment
  SEINET12280472  Amsinckia intermedia J. P. Tracy 1948-1 18023 Humboldt at the big rock, 2 mi W of Bridgeville Comment
  UC545822  Amsinckia menziesii var. menziesii H. E. Parks March, 1933 4282 Humboldt Trinidad Comment
  UC1198610  Anagallis arvensis Joseph P. Tracy 1912-6-9 3676 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC562471  Anagallis arvensis Joseph P. Tracy 1932-5-10 9936 Humboldt Bear R. Ridge Northern Coast Ranges, Bear R. Ridge 609 Comment
  HSC67526  Anagallis arvensis J. P. Smith 1970-6-7 3806 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  CAS-BOT-BC45131  Anaphalis margaritacea Alice Eastwood 1923-8-14 12304 Humboldt Samoa Comment
  HSC40259  Anaphalis margaritacea Linda M. Barker 1976-8-2 1671 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  HSC67040  Anaphalis margaritacea J. P. Smith 1971-10-9 5043 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC4618  Anaphalis margaritacea J. Rockwell 1962-11-12 151 Humboldt Near Coast Guard Station Comment
  SEINET8734419 Image available Anaphalis margaritacea H. E. Parks, S. T. Parks 1943-1 24237 Humboldt Stone Lagoon Comment
  CAS-BOT-BC391777  Anemone deltoidea Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC34275  Anemone deltoidea K. Irwin 1975-8-13 Humboldt N Trinity Mtn. area below Mill Creek Lakes Comment
  HSC55331  Anemone deltoidea Griswold, Butler 1979-7-12 7175 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC55633  Anemone deltoidea Overton, Butler 1979-7-24 9642 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC56099  Anemone deltoidea G. L. Clifton 1979-7-31 11817 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC56311  Angelica arguta Overton, Butler 1979-8-2 12641 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC21444  Angelica genuflexa D. E. Anderson 1961-9-30 1852 Humboldt Blue Lake Comment
  UC1197383  Angelica genuflexa Joseph P. Tracy 1937-7-17 15442 Humboldt 2 mi s of Fields Landing (near Still Ranch); Northern Coast Region 6 Comment
  UC582653  Angelica genuflexa Joseph P. Tracy 1937-8-22 15670 Humboldt 2 mi s of Fields Landing 6 Comment
  UC585998  Angelica genuflexa Joseph P. Tracy 1927-9-25 8380 Humboldt 2 mi s of Fields Landing (around Humboldt Bay, at Still Ranch); Northern Coast Region, Still Ranch 6 Comment
  JEPS12341  Angelica genuflexa Joseph P. Tracy 1938-9-25 16165 Humboldt near Murphy Meadows (Bald Mountain); Bald Mountain 944 Comment
  CAS-BOT-BC221418  Angelica hendersonii L. R. Abrams 1916-7-18 6138 Humboldt At Trinidad Comment
  HSC21447  Angelica hendersonii C. B. Wolf 1927-8-29 1216 Humboldt Devil's Gate, S of Cape Mendocino. Comment
  UC183670  Angelica hendersonii Joseph P. Tracy 1912-7-21 3764 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  CAS-BOT-BC77282  Antennaria microphylla Joseph P. Tracy 1935-7-24 14169 Humboldt Trinity Summit, near ranger station 1828 Comment
  CHSC105172  Antennaria suffrutescens B. Castro; L. P. Janeway 1996-8-3 704 Humboldt Six Rivers NF, near Horse Mtn. Along Titlow Hill Rd (Rd #1), on flat ridgetop. 1469 Comment
  HSC97641  Antennaria suffrutescens Cara Witte 2007-6-12 242 Humboldt Horse Mountain Botanical Area. Near mine area. Forest Service Road 6N38. 1311 Comment
  UCD85348  Anthoxanthum occidentale A. A. Beetle; G. L. Stebbins Jr. 1942-6-3 3487 Humboldt Redwood grove 9 miles south of Garberville. Comment
  RSA10084  Anthoxanthum odoratum Joseph P. Tracy 1925-7-5 7164 Humboldt High Prairie, on Bald Mountain. 1067 Comment
  RSA311304  Anthoxanthum odoratum R. F. Thorne, P. Everett 1956-8-8 35256 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  UCD56164  Anthoxanthum odoratum H. L. Person 1932-5-10 s.n. Humboldt Arcata. 45 Comment
  JEPS83424  Antirrhinum vexillocalyculatum subsp. breweri David M. Thompson 1983-6-30 360 Humboldt vicinity Orleans (40 ft n of the s junction of Cedar Camp Road and Hwy 96, slide on w side of Hwy 96); , Orleans Quad. (15', 1952) 182 Comment
  UC582468  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1936-6-27 16003 Humboldt Miranda 91 Comment
  HSC77455  Aphanes occidentalis L. P. Janeway 1983-5-1 255 Humboldt North Spit (Samoa Peninsula). Sand dunes W of Samoa Rd and N of Coast Guard Station 6 Comment
  UC1198742  Aphanes occidentalis Joseph P. Tracy 1919-5-31 5767 Humboldt Northern Coast Ranges. Along Willow Creek (Tributary of Trinity River) Near its mouth 152 Comment
  POM132652  Apiastrum angustifolium L. R. Abrams 1916-7-11 6030 Humboldt Mouth of Grizzly Creek Comment
  UC153990  Apocynum androsaemifolium Joseph P. Tracy 1909-8-1 3063 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC40992  Apocynum androsaemifolium Thomas W. Nelson, Jane P. Nelson 1977-9-3 3730 Humboldt N of pond above Alder Springs 1616 Comment
  UC34969  Apocynum cannabinum Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  CAS-BOT-BC392159  Aquilegia formosa J. O. Sawyer; R. J. Cole 1977-7-3 3006 Humboldt Environs of Mud Spring. Big Hill Road (F.S. 8N01) 1524 Comment
  CAS-BOT-BC392163  Aquilegia formosa Volney Rattan 1879-1-1 s.n. Humboldt Nr Redwood Cr. Comment
  UCD95545  Aquilegia formosa H. P. Olmo 1931-6-8 s.n. Humboldt 5 miles north of Trinidad. Comment
  HSC56245  Aquilegia formosa var. truncata Walter Overton 1979-8-1 12348 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  HSC103965  Arabis breweri var. breweri A. Thoele, Sydney Carothers 1995-7-13 39 Humboldt Six Rivers National Forest; Potato Hill, NE side of Pilot Creek. Take SR1 to jct. with 3N14, walk NW 1.4 mi., then SW 1/3 mi. down ridge 1498 Comment
  RSA0126138  Arabis divaricarpa var. interposita Joseph P. Tracy 1932-7-11 10396 Humboldt Klamath Mountains, Trinity Summit, open ground at Corral Prairie. 1524 Comment
  HSC56440  Arabis glabra Griswold, Butler 1979-7-12 7172 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC74547  Arabis platysperma M. A. Baker 1980-7-24 3211 Humboldt Near Orleans Mtn. 1625 Comment
  HSC79063  Arabis subpinnatifida D. K. Imper 1983-7-28 Humboldt Six Rivers National Forest, Orleans, off FS 12N20 near Bald Mtn. Comment
  HSC98804  Arabis subpinnatifida Cara Witte 2008-6-2 672 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1373 Comment
  HSC3251  Aralia californica D. E. Anderson 1962-9-14 2337 Humboldt Fish Lake area Comment
  UC154135  Aralia californica P. E. Goddard 1901-7-12 78 Humboldt Hupa Comment
  RSA23646  Arbutus menziesii C. B. Wolf 1939-7-8 9523 Humboldt Wilder Ridge, 6/10 mi. north of Ettersburg on road to Honeydew. 244 Comment
  UC1196880  Arbutus menziesii F. C. Gregory 1919-10-10 Humboldt Trinity River Valley near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1196876  Arctostaphylos Joseph P. Tracy 1934-3-11 13157 Humboldt French Camp Ridge 1066 Comment
  UCD50535  Arctostaphylos canescens Joseph P. Tracy 1939-8-16 16406 Humboldt Horse Mountain; in open forest of Jeffrey Pine. 1432 Comment
  OBI33905  Arctostaphylos canescens subsp. sonomensis David J. Keil 1983-7-2 17321 Humboldt Ca. 4 mi SE of SR 299 along Titlow Hill rd below Horse Mountain Summit rd Comment
  CAS-BOT-BC23782  Arctostaphylos columbiana Joseph P. Tracy 1934-3-11 13151 Humboldt French Camp Ridge 1066 Comment
  RSA622692  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27674 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
  UC154033  Arctostaphylos columbiana J. P. Tracy 1909-8-22 3079 Humboldt vicinity of Eureka 0 Comment
  UCD50760  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1168 Humboldt 20 road miles east of Hwy. 101 on Bald Hills Road (from Orick). Comment
  CAS-BOT-BC23735  Arctostaphylos columbiana C. Hart Merriam 1921-7-7 s.n. Humboldt Ridges west of the Van Duzen River. Comment
  RSA254754  Arctostaphylos columbiana var. columbiana Thomas W. Nelson 1975-3-20 1750 Humboldt Along Kneeland Rd. just south of its junction with Maple Creek Rd. Losey property. 671 Comment
  RSA81544  Arctostaphylos columbiana var. tracyi E. K. Balls, Percy C. Everett, B. K. Balls 1953-10-11 18626 Humboldt 0.1 mi. N of Humbolt-Mendecino Co. line, Hwy 101. 168 Comment
  SEINET11989090  Arctostaphylos columbiana var. tracyi R. Gankin, Hildreth, W. R. 1967-1 1170 Humboldt 21.4 mi E of US 101 on Bald Hills Rd (from Orick), French Camp Ridge Comment
  UCD51017  Arctostaphylos glandulosa Roman Gankin 1965-8-4 542 Humboldt On USAL Road, 1 mile north of junction of Four Corners. Comment
  JEPS38648  Arctostaphylos glandulosa subsp. glandulosa W. L. Jepson 1932-8-8 16479 Humboldt Canoe Creek Grasshopper Peak 1066 Comment
  UC1120196  Arctostaphylos glandulosa subsp. glandulosa G. T. Nordstrom Jul 1937 1427 Humboldt 10.5 mi ene Orick; Orick Quadrangle Comment
  RSA632807  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27790 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  HSC100093  Arctostaphylos manzanita J. P. Smith, J. O. Sawyer 2010-3-22 12710 Humboldt Along Hwy. 36, E of Dinsmore. 734 Comment
  RSA47101  Arctostaphylos manzanita subsp. elegans Doris K. Kildale 1926-4-6 1718 Humboldt Dobbyns Creek along road from mail box to Log Cabin Ranch Comment
  HSC101660  Arctostaphylos manzanita subsp. glaucescens J. P. Smith, J. O. Sawyer 2011-4-23 13121 Humboldt Along road from Redway to Shelter Cove 212 Comment
  CAS-BOT-BC24363  Arctostaphylos manzanita subsp. manzanita R. N. Raynor 1935-3-1 s.n. Humboldt Fort Seward. Comment
  CAS-BOT-BC24368  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1942-7-18 17285 Humboldt Garberville. 152 Comment
  UC585969  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1934-7-9 13348 Humboldt Dobbyn Creek 152 Comment
  HSC59028  Arctostaphylos nevadensis M. A. Baker 1979-6-7 794 Humboldt Telescope Peak 1250 Comment
  JEPS38954  Arctostaphylos nevadensis Joseph P. Tracy 1932-7-12 10474 Humboldt head of Brett Hole Trinity Summit 1828 Comment
  SEINET11989089  Arctostaphylos nevadensis subsp. knightii R. Gankin, Hildreth, W. R. 1967-1 1172 Humboldt 21.4 mi E of US 101 on Bald Hills Rd from Orick, French Camp Ridge Comment
  HSC7704  Arctostaphylos patula J. Pursell 1964-10-17 10171 Humboldt Hoopa in Hoopa Valley Comment
  UC585899  Arctostaphylos patula Joseph P. Tracy 1927-6-12 8135 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC43978  Arctostaphylos uva-ursi Doris K. Kildale 1927-9-9 3306 Humboldt Big Lagoon Comment
  CAS-BOT-BC43981  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17502 Humboldt Eureka 45 Comment
  CAS-BOT-BC43996  Arctostaphylos uva-ursi Doris K. Kildale 1928-8-10 6264 Humboldt Samoa peninsula Comment
  HSC12226  Arctostaphylos uva-ursi Gary J. Stebbins 1970-4-18 68 Humboldt Along road to Samoa 1.1 mi. S of Mad River slough bridge Comment
  UC1196878  Arctostaphylos uva-ursi J. P. Tracy 1909-10-7 3111 Humboldt Gans Prairie 457 Comment
  UC527561  Arctostaphylos uva-ursi C. B. Wolf 1931-8-30 2374 Humboldt Samoa Humboldt Bay 7 Comment
  RSA1903  Arctostaphylos uva-ursi var. coactilis C. B. Wolf 1930-10-28 1035 Humboldt Samoa. 15 Comment
  UC668124  Arenaria congesta var. suffrutescens Joseph P. Tracy 1932-7-12 10478 a Humboldt Head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  UC668127  Arenaria congesta var. suffrutescens Joseph P. Tracy 1932-7-12 10478 b Humboldt Head of Brett Hole Trinity Summitt, Brett Hole 1828 Comment
  UC52260  Arenaria serpyllifolia H. P. Chandler 1901-1 Humboldt Klamath R. Comment
  HSC16899  Armeria maritima subsp. californica S. J. Hawks 1965-3-9 42 Humboldt 1 mi. W of McKinleyville, past the end of Murray Rd. Comment
  HSC95650  Armeria maritima subsp. californica Andrea Pickart 2002-6-4 113 Humboldt N Spit Dunes 0 Comment
  RSA246710  Armeria maritima subsp. californica Robert F. Thorne, Percy C. Everett 1965-8-5 35158 Humboldt Samoa Dunes. 3 Comment
  HSC46207  Arnica cernua Thomas W. Nelson 1977-6-15 3435 Humboldt Horse Mtn.; along USFS Rd. 5N10 about 100 m south of junction with USFS Rd. 6N01 Comment
  JEPS20973  Arnica cernua Joseph P. Tracy 1926-5-2 7449 Humboldt near Ruby Creek; Northern Coast Ranges, Ruby Creek 609 Comment
  UC302176  Arnica cernua Joseph P. Tracy 1926-5-2 7449 Humboldt near Ruby Creek; Northern Coast Ranges, Willow Creek Canyon 609 Comment
Read comments Feb 27 2007
  HSC64195  Arnica discoidea J. O. Sawyer, M. A. Erickson 1979-6-23 3373 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  UC129316  Arnica discoidea Joseph Burtt Davy and Walter C. Blasdale 1899-7-19 5668 Humboldt Hoopa Mt. North-Western California, Hoopa Mt. Comment
  HSC102702  Arrhenatherum elatius J. P. Smith 2013-6-16 13730 Humboldt Along State Route 36, adjacent to the Dinsmore Airport. 735 Comment
  HSC98817  Artemisia douglasiana Cara Witte 2007-9-3 642 Humboldt Forest Service Road 5N09. 1 mile east of intersection with National Forest 1. 1332 Comment
  SEINET11842962  Artemisia douglasiana F. H. Utech 1986-1 86 -412 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  UC1222994  Artemisia pycnocephala Joseph P. Tracy 1947-8-31 17929 Humboldt Samoa Sand Dunes Comment
  RSA296735  Artemisia pycnocephala J. P. Smith, Thomas W. Nelson 1977-6-30 9216 Humboldt Samoa Peninsula just east of the drag strip. Comment
  CAS-BOT-BC97243  Artemisia suksdorfii Carl B. Wolf 1927-8-29 1220 Humboldt [Devil's] Devils Gate, south of Cape Mendocino Comment
  HSC41836  Asarum caudatum Tom Duebendorfer 1977-4-23 10 Humboldt 2.5 mi S of Shelter Cove Rd. S Fork of Bear Creek at Wailaki Campground 561 Comment
  UCR179286  Asarum caudatum R. G. Swinney 1968-3-28 232 Humboldt East of Humboldt State College, Arcata 152 Comment
  CAS-BOT-BC400532  Asarum caudatum L. R. Abrams 1922-6-25 8259 Humboldt North of the Mad River near Arcata Comment
  UCD15240  Asarum caudatum Glen Greenleaf 1974-4-10 13 Humboldt along highway 36, 10.8 miles east of Hydesville on south side of road. 140 Comment
  HSC41326  Asarum hartwegii Brad Klipfel 1974-8-2 514 Humboldt Horse Mtn. Comment
  POM127914  Asclepias speciosa P. E. Goddard 1906-06 688 Humboldt Blocksburg Comment
  UC211498  Aspidotis densa Chesnut and Drew 1888-7-9 Humboldt Kneeland Prairie Comment
  UC53317  Aspidotis densa Joseph Burtt Davy 1899-6-19 5631 Humboldt Hoopa Mt Comment
  RSA21097  Aspidotis densa C. B. Wolf 1937-6-14 8825 Humboldt North Coast Range, Kneeland Prairie 823 Comment
  RSA686386  Aspidotis densa Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mountain Trail 915 Comment
  HSC100424  Aster foliaceus Carl C. Marshall Sep 1886 247 Humboldt Everywhere. Comment
  UC502991 Image available Astragalus agnicidus Henry Tosten 1931-6-7 Humboldt 4 mi s Miranda (near Bear Buttes, on Tosten & Pierce Ranch) 762 Comment
  CAS-BOT-BC192859  Astragalus purshii var. lectulus Thomas W. Nelson; James L. Nelson 1980-6-10 5405 Humboldt Along Swayback Ridge 4-wheel drive road ca. 2.5 miles north of junction with Forest Service road 1S07 1463 Comment
  UC201698  Astragalus rattanii var. rattanii unknown 1884-6-1 Humboldt Black Butte Comment
  CAS-BOT-BC69522  Athyrium filix-femina subsp. cyclosorum L. R. Abrams 1916-7-18 6109 Humboldt Arcata to Trinidad, 18 mi. along coast. Comment
  RSA44514  Athyrium filix-femina subsp. cyclosorum Henry M. Pollard 1947-8-28 s.n. Humboldt Perch Creek Canyon, Mount Orleans Comment
  RSA46703  Athyrium filix-femina subsp. cyclosorum Doris K. Kildale 1928-12-29 6762 Humboldt Stevens Grove Comment
  HSC102552  Athyrium filix-femina var. cyclosorum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1540 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC197922  Athyrium filix-femina var. cyclosorum Joseph P. Tracy 1912-7-25 3814 Humboldt along Black Creek Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC32331  Athysanus pusillus D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5671 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge Comment
  UC161493  Athysanus pusillus Joseph P. Tracy 1908-6-9 2644 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1222661  Athysanus pusillus Joseph P. Tracy 1950-4-20 18610 Humboldt 1/2 mi w of Dinsmore's (along Van Duzen River, opposite Buck Mountain); Van Duzen River 762 Comment
  BLMAR302  Atriplex patula Jennifer Anthony-Wheeler 2002-7-1 302 Humboldt South Spit, bayside edge of east side 6 Comment
  HSC26780  Avena barbata Thomas W. Nelson 1971-5-31 461 Humboldt 915 Comment
  HSC65451  Avena barbata J. P. Smith 1973-5-26 6807 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC1103328  Avena barbata Joseph P. Tracy 1923-5-20 6217 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC100249  Avena fatua J. P. Smith, & J. O. Sawyer 2010-5-2 12793 Humboldt At junction of Hwy. 96 and Big Rock Access Road. 145 Comment
  HSC9024  Avena fatua W. F. Nickel 1965-5-16 Humboldt N Arcata next to the Humboldt Motor Hotel. Comment
  UC1239784  Azolla filiculoides Joseph P. Tracy 1911-6-25 3245 Humboldt pool back of Holmes Mill Bucksport; Northern Coast Region 0 Comment
  UC604625  Baccharis glutinosa Joseph P. Tracy 1938-8-21 16128 Humboldt Mouth of Little River 9 Comment
  UC581762  Baccharis glutinosa Joseph P. Tracy 1933-8-27 13001 Humboldt between Garberville and Harris Garberville (Robertson Ranch) 762 Comment
  CAS-BOT-BC98034  Baccharis pilularis L. B. Kildale 1930-8-3 10488 Humboldt Chaparral Mt. at Bug Creek Comment
  UC535754  Baccharis pilularis Eleanor Armstrong 1934-8-30 1200 Humboldt Richardson Grove 121 Comment
  HSC39984  Baccharis pilularis subsp. consanguinea Linda M. Barker 1976-9-3 1691 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC275466  Balsamorhiza deltoidea Joseph P. Tracy 1925-5-17 6984 Humboldt near South Fork of Trinity River Valley; Trinity River Valley 182 Comment
  HSC6585  Barbarea verna D. E. Anderson 1962-3-31 1968 Humboldt Along new Hwy. 101, W side of Freshwater Lagoon Comment
  HSC32388  Bellis perennis Linda M. Barker 1974-5-11 180 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC75814  Bensoniella oregona Bill Copeland 1980-6-26 308 Humboldt Near Murphy Meadow 914 Comment
  HSC3345  Berberis aquifolium Paul Shields May 1955 Humboldt 10 mi. E Willow Creek Comment
  UC1198382  Berberis nervosa Joseph P. Tracy 1924-4-27 6642 Humboldt along hwy near Ruby Creek (Willow Creek) 609 Comment
  HSC35713  Berberis pinnata Thomas W. Nelson 1975-10-12 2237 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC64434  Bistorta bistortoides J. P. Smith, Steve Selva 1970-6-30 4119 Humboldt Comment
  JEPS59982  Blechnum spicant Lincoln Constance 1934-6-8 840 Humboldt S Fork Eel River Bull Creek Region Comment
  SD112347  Blechnum spicant Darley F. Howe 1961-8-1 3109 Humboldt Three mi. N of Arcata on Hwy. 101. Comment
  UCD114326  Boechera divaricarpa Joseph P. Tracy 1932-7-11 10396 Humboldt Trinity Summit. Open ground at corral prairie, Klamath Mountains. 1524 Comment
  POM256471  Boisduvalia glabella Joseph P. Tracy 1938-7-5 16010 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town. 46 Comment
  HSC78085  Botrychium multifidum var. intermedium L. P. Janeway, Amy Eisenberg 1984-4-25 748 Humboldt On N Spit of Humboldt Bay, SE side of intersection of Samoa and Fairhaven rds. 3 Comment
  CAS-BOT-BC420275  Boykinia occidentalis Doris K. Kildale 1926-6-6 2117 Humboldt trail to Gold Bluffs Comment
  BLMAR241  Boykinia occidentalis Jennifer Anthony-Wheeler 1997-6-13 241 Humboldt King range, growing at base of N bank of S fork bear creekbed 463 Comment
  CAS-BOT-BC420262  Boykinia occidentalis Roxana S. Ferris 1937-8-21 s.n. Humboldt in cliff above beach, Shelter Cove Comment
  HSC27017  Boykinia occidentalis Brad Klipfel 1973-8-17 270 Humboldt Big Lagoon Park Comment
  UCSB23762  Boykinia occidentalis Breedlove, Dennis 1962-6-8 Humboldt Along U.S. Highway 101; 8 miles north of Orick; 60 Comment
  HSC6581  Brassica rapa Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  UC165031  Brickellia californica Joseph P. Tracy 1900-9-10 960 Humboldt near Hydesville; Northern Coast Region, Van Duzen River 60 Comment
  UCD57276  Briza maxima Joseph P. Tracy 1950-5-30 18711 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC184146  Briza minor Joseph P. Tracy 1912-6-9 3664 Humboldt Alton; Northern Coast Region 30 Comment
  CAS-BOT-BC484217  Brodiaea elegans subsp. elegans Doris K. Kildale 1926-6-27 2209 Humboldt Larabee Valley 701 Comment
  JEPS513  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1927-6-8 8111 Humboldt Trinidad 3 Comment
  UC1197743  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1904-7-4 2114 Humboldt Bucksport Northern Coast Region, Humboldt Bay Region 0 Comment
  UC1103276  Bromus carinatus var. carinatus J. P. Tracy 1900-5-28 817 Humboldt immediate vicinity of Eureka 0 Comment
  UC1103278  Bromus carinatus var. carinatus Joseph P. Tracy 1942-6-2 17098 Humboldt 2 mi n of Bridgeville 609 Comment
  UC1103280  Bromus carinatus var. carinatus Joseph P. Tracy 1920-5-18 5326 Humboldt 5 mi above mouth of South Fork (along Eel River from South Fork to Scotia); Northern Coast Ranges, Eel River 60 Comment
  UC180492  Bromus carinatus var. carinatus Joseph P. Tracy 1913-6-22 4274 Humboldt opposite Buck Mountain (in Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  UC34028  Bromus carinatus var. carinatus Henry Melde 1902-2-8 Humboldt Eureka Comment
  UC552775  Bromus carinatus var. carinatus Harold E. Parks and Joseph P. Tracy 1935-6-8 11268 Humboldt Trinidad 60 Comment
  UCD58498  Bromus carinatus var. carinatus A. H. Murphy 1951-3-30 s.n. Humboldt 2 miles north of Petrolia. County road. Comment
Read comments May 22 2012
  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
  UC249501  Bromus carinatus var. maritimus Joseph P. Tracy 1922-5-28 6054 Humboldt Little River Beach; Northern Coast Ranges, Little River Beach 6 Comment
  HSC9294  Bromus diandrus R. T. Forester 1963-4-30 53 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  UC1145182  Bromus diandrus Joseph P. Tracy 1950-6-15 18775 Humboldt 5 mi n of Harris (Mail Ridge); Mail Ridge 944 Comment
  SEINET181180 Image available Bromus diandrus Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-7 15066 Humboldt 10 miles south of Squaw Creek. Comment
  SEINET4391136  Bromus diandrus W. D. Billings 1940-6-22 1343 Humboldt 0.5 mile N of Trinidad Comment
  HSC102645  Bromus hordeaceus J. P. Smith 2009-5-31 12607 Humboldt Bald Hills Road. 713 Comment
  UC34065  Bromus hordeaceus J. P. Tracy 1901-6-16 1146 Humboldt immediate vicinity of Eureka 0 Comment
  UCD58817  Bromus hordeaceus A. H. Shunk 1923-7-12 s.n. Humboldt Briceland. Comment
  CAS-BOT-BC162448  Bromus laevipes Henry M. Pollard 1946-8-10 s.n. Humboldt Roadside south of Klamath River and east of Perch Creek, Orleans Region. Comment
  CAS-BOT-BC161604  Bromus sterilis Joseph P. Tracy 1916-5-31 4701 Humboldt Northern Coast Ranges of California. Stitz Creek. Along Eel River from South Fork to Scotia. 60 Comment
  HSC97099  Bromus sterilis Yun Chan, Renee Meyer, Sophary Yun 2007-6-11 5 Humboldt 14.1 mi. S of Hwy. 299 on FS Rd. NF1 1364 Comment
  POM160825B  Bromus sterilis Joseph P. Tracy 1916-5-31 4701 Humboldt Stitz Creek. Along Eel River South Fork to Scotia. 61 Comment
  UC1145179  Bromus tectorum Joseph P. Tracy 1939-4-29 16248 Humboldt 8 mi below Orleans (near Slate Creek, Klamath River); Klamath River 121 Comment
  HSC100142  Buddleja davidii G. F. Hrusa, C. E. Dogwin 2010-12-31 18278 Humboldt Kahlstrom Avenue, Westhaven 96 Comment
  RSA484550  Cakile edentula E. A. Purer 1932-7-27 4140 Humboldt Near Samoa. Comment
  UC673075  Cakile edentula Joseph P. Tracy 1940-10-3 16739 Humboldt near Samoa (on Humboldt Bay); Humboldt Bay 3 Comment
  RSA10029  Calamagrostis canadensis Joseph P. Tracy 1932-7-14 10553 Humboldt Klamath Mountains; Trinity Summit. Wet Meadow at Corral Prairie 0 Comment
  CAS-BOT-BC185316  Calamagrostis foliosa Joseph P. Tracy 1936-6-9 14899 Humboldt Bank of Mattole River at bridge 3 miles east of Petrolia. 30 Comment
  UC1146639  Calamagrostis foliosa Freed W. Hoffman 1946-5-19 1728 Humboldt Mattole River Comment
  HSC76541  Calamagrostis koelerioides Denis Kearns 1981-7-6 85 Humboldt Near Mosquito Lake 1256 Comment
  UC526776  Calamagrostis nutkaensis Joseph P. Tracy 1925-7-5 7174 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC1145049  Calamagrostis rubescens Joseph P. Tracy 1938-7-17 16082 Humboldt Garberville; river bank 152 Comment
  UC1198379  Calandrinia ciliata Joseph P. Tracy 1930-6-8 8735 Humboldt Kneeland Prairie 762 Comment
  UC176676  Calandrinia ciliata Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3580 Humboldt near Hydesville; Northern Coast Region 30 Comment
  HSC95579  Calandrinia ciliata Andrea Pickart 2002-3-14 6 Humboldt Samoa Dunes, BLM Endangered Plant Protection Area 0 Comment
  HSC95654  Calandrinia ciliata Andrea Pickart 2002-4-3 43 Humboldt Lanphere Dunes 25 Comment
  HSC62669  Callitriche stagnalis Michelle Stevens 1979-5-18 115 Humboldt By Bayside Grange at 2297 Jacoby Rd., Bayside. 0 Comment
  HSC58323  Calocedrus decurrens Overton, Butler 1979-8-2 12620 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC76318  Calocedrus decurrens Teresa Prendusi 1981-7-9 242 Humboldt Near Slate Creek Butte 1122 Comment
  OBI33734  Calocedrus decurrens David J. Keil 1983-7-2 17316 Humboldt Ca. 4 mi SE of SR 299 along Titlow HIll rd below Horse Mtn Summit Rd Comment
  CAS-BOT-BC488459  Calochortus amabilis Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC102081  Calochortus coeruleus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 983 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC667131  Calochortus coeruleus Joseph P. Tracy 1932-7-12 10483 Humboldt Head of Brett Hole Trinity Summit 1828 Comment
  HSC31756  Calochortus tolmiei Timothy B. Devine 1974-5-4 322 Humboldt Bank of Chezem Rd. at junction of Hwy. 299 457 Comment
  HSC67180  Calochortus tolmiei Thomas W. Nelson, James Nelson 1980-6-10 5431 Humboldt Along E side of Red Mtn. 1372 Comment
  HSC73066  Calochortus tolmiei M. A. Baker 1980-6-16 1946 Humboldt Near Onion Mtn. 1280 Comment
  UC1537208  Calochortus tolmiei Gordon H. True Jr. 1936-5-11 456 Humboldt 12 mi w Miranda; Elk Ridge 457 Comment
  UC1222581  Caltha biflora Joseph P. Tracy 1951-6-14 19408 Humboldt Snow Camp. 1402 Comment
  UC1196207  Caltha biflora Joseph P. Tracy 1933-7-16 12779 Humboldt Northern Coast Ranges. At McKay Camp, South Fork Mountain. 1676 Comment
  POM273040  Calycadenia ciliosa H. M. Pollard 1945-8-31 s.n. Humboldt Orleans to Somes Bar, east side of Klamath River. Comment
  CAS-BOT-BC273310  Calycadenia fremontii G. D. Carr 1974-9-12 785 Humboldt 2.1 mi W of Hwy 299 on Friday Ridge Rd, ca. 3.5 mi WSW of Salyer 458 Comment
  UC176850  Calycadenia fremontii Joseph P. Tracy 1911-7-4 3282 Humboldt near, west side of Trinity River Willow Creek; Northern Coast Ranges, Trinity River 243 Comment
  HSC100365  Calycadenia truncata J. McRae 2007-9-13 Humboldt Sims Mtn., Panther dozer line. 732 Comment
  CHSC24853  Calypso bulbosa A. D. Launer 1976-4-9 6 Humboldt On e hillside of Blocksburg Cemetery, ca. 30 yds s of Cemetery Rd, 200 yds w of Alderpoint Rd in Blocksburg. 464 Comment
  UC1196472  Calypso bulbosa Joseph P. Tracy 1923-4-15 6192 1/2 Humboldt Northern Coast Ranges, Redwood Creek, at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  HSC39107  Calyptridium monospermum D. E. Anderson, J. P. Smith 1971-6-18 - 1090 Humboldt Horse Mtn. Comment
  HSC55179  Calyptridium monospermum Gilbert Muth 1979-8-1 12189 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  HSC98759  Calyptridium monospermum Cara Witte 2008-7-2 815 Humboldt Board Camp Mountain. Road to Tri Board Camp. Forest Service Road 4N38. 1574 Comment
  HSC38127  Calyptridium monospermum Thomas W. Nelson, Jane P. Nelson 1976-5-23 2518 Humboldt S facing slope of Goat Hill, Lassics 1666 Comment
  HSC97957  Calystegia occidentalis subsp. occidentalis Cara Witte, Michael Scott 2007-6-22 350 Humboldt Board Camp Mountain, jeep trail between Tri Board Camp and Fork Camp 1565 Comment
  RSA119358  Calystegia occidentalis subsp. occidentalis S. S. Tillett 1956-7-6 625 Humboldt 12.5 miles from Orleans, along Bar Shanty Road. 1174 Comment
  UC562487  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1933-8-30 13006 Humboldt Horse Mountain , Horse Mountain (Northern Coast Ranges) 1310 Comment
  UC582720  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1937-7-24 15531 Humboldt head of Little Hors-Linto Creek , head Little Hors-Linto Creek (Trinity Summit) 1371 Comment
  RSA34296  Calystegia soldanella J. Wendell Howe 1933-5-23 s.n. Humboldt Samoa Comment
  CHSC68781  Calystegia soldanella Vernon Oswald 1997-6-5 8533 Humboldt North Spit of Humboldt Bay, the west side of New Navy Base Rd. 1.0 mi south of Hwy 255. 6 Comment
  UC1222552  Camassia quamash J. P. Tracy 1951-6-14 19407 Humboldt Snow Camp 1402 Comment
  UC146194  Camassia quamash Joseph P. Tracy July 1908 2903 Humboldt near Low Gap (between Van Duzen and Mad Rivers, opposite Dinsmore's); Northern Coast Ranges 609 Comment
  HSC64502  Camissonia cheiranthifolia J. P. Smith 1971-10-6 4944 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC62912  Camissonia cheiranthifolia J. M. DiTomaso 1979-4-22 912 Humboldt Big Lagoon, 8 mi. N of Trinidad Comment
  UC1326258  Campanula prenanthoides Milo S. Baker 1947-8-8 11925 Humboldt just n Orick (about 10 mi along Rd from Hwy 101 towards Hoopa) 609 Comment
  UC602533  Campanula prenanthoides Joseph P. Tracy 1933-7-26 12927 Humboldt Grouse Creek Basin 762 Comment
  SEINET10463566  Campanula scouleri Clifton 1979-7-31 CLIFTON 11815 Humboldt NR TISH TANG A TANG CR., SALMON MT QUAD. NR HOOPA EVERGREEN CONIFER FOREST IN SEEPAGE AREA 1356 Comment
  SEINET10463745  Campanula scouleri Newton 1981-7-24 Newton 2300 Humboldt Iaqua Buttes quadrangle; near Chaparral Mountain, forest openings. 1433 Comment
  HSC89572  Capsella bursa-pastoris M. Roantree 1985-4-25 9 Humboldt E side of Trinidad Head. Comment
  UC203897  Cardamine breweri Joseph P. Tracy 1918-4-28 4891 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  UC161552  Cardamine breweri Joseph P. Tracy 1905-4-16 2163 Humboldt region about Humboldt Bay (at Bucksport); Northern Coast Region, , Bucksport 0 Comment
  CAS-BOT-BC37426  Cardamine californica Doris K. Kildale; L. B. Kildale 1930-5-11 9535 Humboldt Wiregrass Prairie - The Bald Hills. 792 Comment
  HSC6683  Cardamine californica Lincoln Constance, R. C. Rollins 1942-5-20 2998 Humboldt Eel River, 1 mi. N of Pepperwood 46 Comment
  HSC73768  Cardamine californica M. A. Baker 1980-6-7 1773 Humboldt Near Brush Mtn. 1128 Comment
  JEPS53369  Cardamine californica W. L. Jepson 1934-5-7 16693 Humboldt Bull Creek Comment
  SEINET3377729  Cardamine nuttallii var. gemmata K. T. Harper 2002-1 2002 -6 Humboldt Prarrie Creek State Park, near Orick, on Big Tree Trail. Comment
  HSC39987  Cardamine oligosperma Linda M. Barker 1976-3-22 1338 Humboldt 3 mi. W of Arcata Comment
  HSC74460  Cardamine oligosperma M. A. Baker 1980-5-18 1356 Humboldt Near Black Mtn. 792 Comment
  UC1103807  Cardamine oligosperma Joseph P. Tracy 1911-7-7 3396 Humboldt at the meadows on Mountain Side three mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges, nw jct Willow Creek w/ Trinity River 914 Comment
  HSC78610  Cardamine oligosperma L. P. Janeway 1984-3-17 716 Humboldt N Spit of Humboldt Bay, W of Samoa Rd. near the boat launch ramp 5 Comment
  RSA286360  Cardionema ramosissimum R. F. Thorne 1974-7-29 45077 Humboldt Samoa Dunes. Comment
  UC668108  Cardionema ramosissimum Joseph P. Tracy 1933-8-22 12993 Humboldt mouth of Eel R. 3 Comment
  HSC74695  Carex abrupta Gail Newton 1981-8-7 2462 Humboldt Near Board Camp Mtn. 1478 Comment
  CAS-BOT-BC18518  Carex abrupta Joseph Prince Tracy 1937-7-29 15580 Humboldt South Fork Mountains. McKay Camp. 1676 Comment
  CAS-BOT-BC18003  Carex aquatilis var. dives Joseph Prince Tracy 1935-6-8 13948 Humboldt Dry Lagoon (along coast in front of South End of Stone Lagoon). 3 Comment
  CAS-BOT-BC18008  Carex arcta Joseph Prince Tracy 1934-7-13 13389 Humboldt Dow's Prairie. 60 Comment
  UC585638  Carex arcta Joseph P. Tracy 1937-8-12 15645 Humboldt Snow Camp 1402 Comment
  CHSC45707  Carex barbarae L. P. Janeway 1984-4-28 750 Humboldt Along W side of S Fk Eel River at Butte Cr; across the river from Miranda. 67 Comment
  JEPS63598  Carex barbarae Lincoln Constance 1934-6-7 772 Humboldt Cabin Creek Bridge, on Bull Creek Road Comment
  UC562429  Carex bolanderi Joseph P. Tracy 1936-5-29 14823 Humboldt French Camp Ridge 1066 Comment
  RSA246870  Carex bolanderi Robert F. Thorne, Percy C. Everett 1965-8-5 35128 Humboldt Wailaki Recreation site. 518 Comment
  RSA88693  Carex bolanderi F. W. Peirson 1932-7-7 10261 Humboldt Willow Creek, a few miles above the town of that name. Comment
  CAS-BOT-BC19611  Carex brainerdii Joseph Prince Tracy 1935-7-30 14350 Humboldt Salmon Summit. On ridge 2 miles southwest of top. 1767 Comment
  CHSC90273  Carex brainerdii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8588 Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  CAS-BOT-BC110192  Carex buxbaumii Joseph P. Tracy 1927-4-23 7916 Humboldt Big Lagoon. 30 Comment
  HSC62882  Carex buxbaumii J. M. DiTomaso 1979-5-20 1049 Humboldt Big Lagoon Park, 8 mi. N of Trinidad Comment
  HSC7100  Carex buxbaumii B. D. Rogers 1965-10-2 1018 Humboldt Big Lagoon 0 Comment
  CHSC40174  Carex concinnoides Lawrence Janeway 1982-6-20 13 Humboldt On ne facing slope near ridgetop ca 1 mi se of Horse Mtn along rd 6N36. 1383 Comment
  POM161061  Carex concinnoides Joseph P. Tracy 1926-6-6 7567 Humboldt Hoopa Mountain. On road west from Hoopa Valley. 915 Comment
  RSA296773  Carex densa Thomas W. Nelson, James Nelson 1976-5-30 2629 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC1115812  Carex densa Joseph P. Tracy 1938-6-9 15876 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC34976  Carex densa Joseph Prince Tracy 1936-6-3 14848 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC1152053  Carex echinata subsp. echinata Joseph P. Tracy 1950-7-25 19067 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC48777  Carex echinata subsp. phyllomanica Brad Klipfel 1974-5-11 340 Humboldt SW side of Big Lagoon Comment
  SEINET2044705 Image available Carex echinata var. ormantha Juha Pykala, D. H. Norris 1987-6-11 1611 Humboldt North Trinity Mountian Wilderness, W of Crogan Hole. 1555 Comment
  JEPS25968  Carex geyeri Joseph P. Tracy 1933-7-11 12662 Humboldt Horse Mountain 1432 Comment
  UC1103070  Carex globosa Joseph P. Tracy 1942-6-15 17164 Humboldt Garberville 152 Comment
  UC249741  Carex globosa Joseph P. Tracy 1921-4-24 5448 Humboldt Phillipsville Northern Coast Ranges, South Fork of the Eel River 121 Comment
  JEPS25999  Carex gracilior Joseph P. Tracy 1936-5-29 14826 Humboldt on ridge e Orick; Gans Prairie 548 Comment
  CAS-BOT-BC146593  Carex gynodynama Joseph P. Tracy 1927-5-8 7969 Humboldt Phillipsville; facing South Fork of Eel River 121 Comment
  UC1116268  Carex gynodynama Joseph P. Tracy 1942-6-15 17127 Humboldt Englewood, Natural Prairie, near Redcrest Resort. Comment
  JEPS25966  Carex harfordii Joseph P. Tracy 1927-7-17 8279 Humboldt Three Cabins: grassy slopes on lower western foothills of Chaparral Mountain 457 Comment
  CHSC34064  Carex hendersonii Joseph P. Tracy 1905-6-25 2202 Humboldt Northern Coast Region of California. At Eureka. 30 Comment
  JEPS80026  Carex hendersonii Joseph P. Tracy 1926-6-13 7598 Humboldt Blue Lake Northern Coast Ranges, Blue Lake 152 Comment
  HSC102230  Carex jonesii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1151 Humboldt Patterson Meadows 1555 Comment
  UC562285  Carex laeviculmis Joseph P. Tracy 1932-7-16 10635 Humboldt Corral Prairie Trinity summit 1584 Comment
  UC562251  Carex lenticularis var. impressa Joseph P. Tracy 1932-7-14 10555 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC604160  Carex lenticularis var. limnophila David D. Keck 1938-8-5 4774 Humboldt Big Lagoon Comment
  HSC102201  Carex leptopoda M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1115 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  HSC75759  Carex leptopoda Teresa Prendusi 1981-7-7 137 Humboldt Near Slate Creek Butte. 1158 Comment
  IRVC1228  Carex leptopoda R. H. Whittaker, W. A. Niering U Humboldt Humboldt Redwoods State Park. Comment
  HSC71111  Carex multicaulis M. A. Baker 1980-5-23 1387 Humboldt Near Buck Mtn. 343 Comment
  SEINET4292202 Image available Carex multicostata Unknown 2003-1 7945 Humboldt High North Coast Ranges. At upper edge of Clear Lake, 2.9 km southeast of Titlow Hill. Grouse Mountain Quad. Comment
  HSC45432  Carex multicostata Thomas W. Nelson, Jane P. Nelson 1978-7-2 4393 Humboldt SE of E peak of the Mount Lassic group 1616 Comment
  CAS-BOT-BC119540  Carex nudata Henry M. Pollard 1945-8-25 s.n. Humboldt Orleans Bridge, Klamath River Canyon Comment
  CHSC10107  Carex obnupta J. W. Johnson 1961-8-17 1055 Humboldt Hollow 10, W.M. Lanphere Farm, Samoa Peninsula. Comment
  UCD140708  Carex obnupta Linda M. Barker 1976-4-30 1417 Humboldt 3 miles west of Arcata. Comment
  UC1103100  Carex pachystachya Joseph P. Tracy 1935-6-23 13983 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC119222  Carex pachystachya Harold Ernest Parks; Joseph Prince Tracy 1935-6-16 11271 Humboldt Buck Mt. Lower NW slope. 792 Comment
  HSC90643  Carex pansa Gail Newton 1982-5-5 2535 Humboldt Elk River Wildlife Area, Eureka. Comment
  HSC82401  Carex scopulorum var. bracteosa Thomas W. Nelson 1979-7-11 5013 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC562655  Carex subbracteata Joseph P. Tracy 1935-5-24 13811 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC562559  Carex subfusca Joseph P. Tracy 1935-6-23 13984 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  UC562638  Carex subfusca Joseph P. Tracy 1936-6-17 14954 Humboldt lower foothills of nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  CAS-BOT-BC115568  Carex tumulicola Alice Eastwood; John Thomas Howell 1937-6-22 4736 Humboldt Near Alder Point Comment
  CAS-BOT-BC115572  Carex tumulicola Joseph Prince Tracy 1930-7-10 8859 Humboldt In grassy opening, Brannan Mountain. 1219 Comment
  CAS-BOT-BC115542  Carex unilateralis Joseph Prince Tracy 1933-6-9 12539 Humboldt Fortuna, Bed of winter pool. 18 Comment
  JEPS80028  Carex vesicaria var. major Joseph P. Tracy 1914-9-6 4613 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  UC562342  Carex vesicaria var. major Joseph P. Tracy 1934-8-14 13574 Humboldt Alton North Coast Ranges, Van Duzen River 30 Comment
  RSA28554  Carex viridula H. E. Parks 1935-09 5214 Humboldt Dry Lagoon, South of Orick Comment
  HSC45089  Castilleja affinis subsp. litoralis R. Sutherland 1978-4-25 11 Humboldt Bluff at Shelter Cove. 27 Comment
  JEPS57403  Castilleja affinis subsp. litoralis L. R. Heckard with T. I. Chuang 1968-7-4 1979 Humboldt n end Big Lagoon Comment
  JEPS8503  Castilleja affinis subsp. litoralis Joseph P. Tracy 1923-5-19 6208 Humboldt vicinity Trinidad; Northern Coast Region 60 Comment
  SEINET4095429  Castilleja ambigua subsp. ambigua O. M. Clark 1932-1 5331 Humboldt North Eureka. Comment
  BLMAR305  Castilleja ambigua subsp. humboldtiensis Jennifer Anthony-Wheeler 2002-7-1 305 Humboldt South Spit 6 Comment
  HSC37568  Castilleja ambigua subsp. humboldtiensis J. D. Ackerman 1975-6-10 462 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  UC146237  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1900-7-4 867 Humboldt Samoa; North Coast Region, Humboldt Bay Region 0 Comment
  HSC56184  Castilleja applegatei Gilbert Muth 1979-8-1 12116 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC604634  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1938-5-1 15732 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC27149  Castilleja attenuata Harley P. Chandler May 1901 1141 Humboldt Humboldt Bay; North Coast Ranges 3 Comment
  JEPS76197  Castilleja exserta subsp. latifolia T. I. and Fei-Mei Chuang 1977-7-19 7624 Humboldt 1.5 mi s Samoa (2.1 mi n from Fairhaven junction towards Samoa) Comment
  JEPS76854  Castilleja exserta subsp. latifolia L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1978-5-29 4825 Humboldt Samoa dunes Samoa Comment
  JEPS8743  Castilleja foliolosa Joseph P. Tracy 1934-7-9 13329 Humboldt 5 mi s Harris; Mail Ridge 762 Comment
  HSC99292  Castilleja miniata Jimerson, J. Pageau 1979-8-10 718 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  HSC74464  Castilleja pruinosa M. A. Baker 1980-5-18 1362 Humboldt Near Black Mtn. 792 Comment
  HSC56416  Castilleja rubicundula subsp. lithospermoides Griswold, Butler 1979-7-11 7070 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  CAS-BOT-BC47997  Ceanothus Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1502115  Ceanothus R. Sutherland 1976-7-5 1 .5.7 76 Humboldt along King's Crest Trail saddle just ne Rattlesnake Ridge; Pt. Delgada Quad., just ne of Rattlesnake Ridge 1051 Comment
  HSC44429  Ceanothus arcuatus Brad Klipfel 1975-5-30 639 Humboldt Horse Mtn. Comment
  SBBG115928  Ceanothus arcuatus J. M. Tucker 1948-9-3 1852 Humboldt House Mtn at jct of rd to Grouse Mtn and rd to Horse Mtn Mine 1463 Comment
  UC668166  Ceanothus foliosus Joseph P. Tracy 1937-5-30 15314 Humboldt 3 mi s Bridgeville (by roadside.) 457 Comment
  HSC37599  Ceanothus foliosus var. foliosus R. Sutherland 1975-7-7 2 .7775 Humboldt Slopes of Eubanks Creek 274 Comment
  RSA399868  Ceanothus incanus J. P. Smith, J. O. Sawyer 1975-4-6 8050 Humboldt Road to Shelter Cove, 5 miles from the Whitehorn Ettersburg jct, roadside in mixed evergreen woodland Comment
  CAS-BOT-BC50050  Ceanothus incanus Doris K. Kildale 1927-6-25 3579 Humboldt at Thorn near schoolhouse road Comment
  CAS-BOT-BC63676  Ceanothus integerrimus L. B. Kildale 1927-7-17 3751 Humboldt Bug Creek. 792 Comment
  HSC18292  Ceanothus integerrimus Francis Winter 1960-5-7 Humboldt 1.0 mi. E of Hoopa along Hoopa-Willow Creek Hwy. 152 Comment
  HSC98731  Ceanothus integerrimus Cara Witte 2007-8-9 635 Humboldt Friday Ridge Road/ 6N08. 1.5 miles north of intersection with Forest Service Road 5N09. 1383 Comment
  OBI10458  Ceanothus integerrimus Carl B. Wolf 1937-8-13 9235 Humboldt North Coast Range, 8 mi E of Hoopa Valley on New road towards Trinity summit 1219 Comment
  HSC36674  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-7-11 3 .11775 Humboldt Along county rd. 290 Comment
  CAS-BOT-BC51224  Ceanothus parryi C. Hart Merriam 1920-8-27 s.n. Humboldt South fork Eel River (10 miles so. of Garberville) Comment
  JEPS42236  Ceanothus parryi W. L. Jepson 1932-7-24 16388 Humboldt Mail Ridge 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-BC52981  Ceanothus thyrsiflorus Mrs. Rachel Ellery 1916-4-1 s.n. Humboldt Beatrice Comment
  HSC18330  Ceanothus thyrsiflorus H. E. Parks Mar 1934 4828 Humboldt Spruce Cove, Trinidad Comment
  JEPS42171  Ceanothus thyrsiflorus W. L. Jepson 1932-8-6 16492 Humboldt Weott Comment
  UC166485  Ceanothus thyrsiflorus Joseph P. Tracy 1909-8-22 3077 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  UCSC000467  Ceanothus thyrsiflorus A. E. Wieslander 1931-5-21 209 Humboldt China Flat, Kneeland Comment
  CAS-BOT-BC52866  Ceanothus velutinus Joseph P. Tracy 1935-5-12 13798 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC102038  Ceanothus velutinus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 941 Humboldt Rustic Camp, northwest of Patterson Meadows Comment
  LA26771  Ceanothus velutinus S. K. Harris; 1942-6-12 1257 Humboldt Fickle Hill Rd., 5 mi. N and 2 mi. E of Boynton Prairie 630.0 Comment
  SEINET193159  Ceanothus velutinus S. K. Harris 1942-6-12 1257 Humboldt Fickle Hill Road 5 miles north and 2 miles east of Boynton Prairie 630 Comment
  JEPS44151  Centaurea calcitrapa Joseph P. Tracy 1940-10-17 16760 Humboldt near Dyerville (South Fork Station) 45 Comment
  UC204750  Centaurea cyanus Joseph P. Tracy 1918-7-1 4963 Humboldt along river from South Fork to Scotia, Holmes Flat Eel River; North Coast Ranges, , Holmes Flat 60 Comment
  CDA7306  Centaurea nigra K. E. Frick 1961-8-16 Humboldt Eureka. Near fairgrounds. 0 Comment
  UC582526  Centaurea solstitialis Joseph P. Tracy 1933-8-27 13002 Humboldt 2 to 5 mi e of South Fork (along Eel River); Eel River 45 Comment
  CDA111  Centaurium tenuiflorum D. G. Kelch 2007-7-25 7 .504 Humboldt Along Hwy 299 between Lord-Ellis Summit and Hwy 96. Comment
  JEPS113353  Centaurium tenuiflorum Jeff Greenhouse 2003-8-27 5117 Humboldt Hwy 101 Comment
  HSC73744  Cephalanthera austiniae M. A. Baker 1980-7-15 2932 Humboldt Near Whiting Ridge 1341 Comment
  CAS-BOT-BC384899  Cerastium arvense Doris K. Kildale 1928-4-29 5967 Humboldt Horse Mountain 853 Comment
  HSC58133  Cerastium arvense Gilbert Muth 1979-8-1 12138 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC162888  Cerastium arvense Harley P. Chandler June, 1901 1384 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC79360  Cerastium arvense Kenneth Clark 1980-4-18 599 Humboldt Above Dead Man's gulch 175 Comment
  HSC4109  Cerastium fontanum subsp. vulgare D. E. Anderson 1962-5-1 2201 Humboldt 1 mi. W of Hoopa Comment
  HSC12705  Cerastium glomeratum Jana Kattenhorn 1970-10-28 151 Humboldt Mad River at the mouth of Lindsey Creek, N Bank Rd. off Hwy. 299 Comment
  UC1052447  Cerastium glomeratum H. E. and S. T. Parks 1944-4-1 24279 Humboldt Trinidad, Spruce Cove 60 Comment
  UCD98024  Cerastium glomeratum Linda M. Barker 1976-4-13 1381 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC4112  Cerastium glomeratum Jack Rockwell 1962-4-5 31 Humboldt N bank of Van Duzen River, E of Hwy. 101 9 Comment
  JEPS51361  Cerastium viride W. L. Jepson 1902-6-10 1883 Humboldt Harris to Ft. Seward Ranch Ridge 1066 Comment
  UC160965  Cercis occidentalis Harley P. Chandler June, 1901 1428 Humboldt Klamath River North Coast Ranges 304 Comment
  CAS-BOT-BC135531  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1946-7-7 17612 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC582766  Chaenactis douglasii var. douglasii Joseph P. Tracy 1935-7-30 14357 Humboldt Salmon Summit 1767 Comment
  HSC104102  Chamaecyparis lawsoniana Monica Rodriguez, William A. Worley 2015-3-21 21 Humboldt Along South Fork Rd, 8.3 mi. from 199 Redwood Hwy. Comment
  HSC41288  Chamaecyparis lawsoniana Brad Klipfel 1974-7-27 482 Humboldt Horse Mtn., along Ruby Creek Comment
  SEINET11739818  Chamaecyparis lawsoniana F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -302 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  CAS-BOT-BC166044  Chamerion angustifolium subsp. circumvagum W. R. Dudley 1899-6-1 s.n. Humboldt Arcata Comment
  HSC55091  Chamerion angustifolium subsp. circumvagum G. L. Clifton, Griswold 1979-7-31 11775 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC76626  Chamerion angustifolium subsp. circumvagum Teresa Prendusi 1981-7-24 490 Humboldt Near Whiteys Peak 1585 Comment
  UCD103644  Chamerion angustifolium subsp. circumvagum E. B. Alexander 1959-7-23 43 Humboldt California Forest and Range Experiment Station. 1 mile NW of Trinidad. Comment
  UC1197019  Chamerion angustifolium subsp. circumvagum Joseph P. Tracy 1934-7-7 13307 Humboldt Elk River Valley 30 Comment
  HSC100931  Cheilanthes californica Miss Handy Jun 1886 343 Humboldt Maple Cr. Comment
  HSC76324  Cheilanthes gracillima Teresa Prendusi 1981-7-21 267 Humboldt Near Whiteys Peak 1646 Comment
  UC55948  Chenopodium album J. P. Tracy 1903-8-4 1927 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC102564  Chimaphila umbellata M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1551 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC535746  Chimaphila umbellata Eleanor Armstrong 1173 Humboldt Richardson Grove Comment
  RSA467017  Chimaphila umbellata subsp. occidentalis H. M. Pollard 1948-7-31 237 Humboldt Orleans Mt. 1372 Comment
  CAS-BOT-BC236919  Chloropyron maritimum subsp. palustre Malcom A. Nobs; S. Galen Smith 1949-8-3 1200 Humboldt Bordering Humboldt Bay, ca. 2 miles north of Eureka Comment
  POM87953  Chrysanthemum leucanthemum L. R. Abrams, R. C. Bacigalupi 1922-6-25 8262 Humboldt Between Trinidad and Big Lagoon Comment
  HSC8060  Chrysolepis chrysophylla Doris K. Kildale 1926-9-5 2628 Humboldt Top of ridge at Goat Camp, Lassic's Peaks 1662 Comment
Read comments Jan 24 2013
  HSC8061  Chrysolepis chrysophylla Doris K. Kildale 1926-8-22 2570 Humboldt Bald Hills, beyond E end of cabin at Tomlinson's 716 Comment
  HSC99490  Chrysolepis chrysophylla var. chrysophylla K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 149 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  JEPS37866  Chrysolepis chrysophylla var. chrysophylla W. L. Jepson 1902-6 2150 Humboldt near McKee's Comment
  UCD110100  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1934-8-29 13641 Humboldt South Fork Mountain: barren rocky places along summit near Blake lookout. 1706 Comment
  UC1119747  Cichorium intybus H. L. Person 1932-8-7 Humboldt Korbel Eureka Comment
  UC642241  Cicuta douglasii Joseph P. Tracy 1927-9-25 8379 Humboldt 2 mi s of Field's Landing (near Still Ranch) 6 Comment
  HSC55863  Circaea alpina subsp. pacifica G. L. Clifton, Griswold 1979-7-25 10872 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  POM228358  Circaea alpina subsp. pacifica C. C. Harris, S. K. Harris 1936-6-22 672 Humboldt Yager Creek 732 Comment
  SD42326  Circaea alpina subsp. pacifica Carl B. Wolf 1937-8-13 9253 Humboldt North Coast Range, 11 miles East of Hoopa Valley on the new road towards Trinity Summit 1524 Comment
  JEPS59108  Cirsium arvense Lincoln Constance 1934-6-2 787 Humboldt to mouth of Bull Creek, and up Bull Creek Bull Creek road; South Fork Eel River, Bull Creek Region Comment
  SEINET5506147 Image available Cirsium douglasii var. douglasii John Thomas Howell 1937-7-31 13716 Humboldt 5 mi E of Berry Summit Comment
  HSC71801  Cirsium occidentale var. candidissimum M. A. Baker 1980-6-26 2379 Humboldt Near Sims Creek 610 Comment
  JEPS59231  Cirsium occidentale var. candidissimum W. L. Jepson 1902-8-5 2148 Humboldt Eltersburg to Briceland Comment
  UC1223056  Cirsium occidentale var. candidissimum Joseph P. Tracy 1942-8-9 17302 Humboldt at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC288721  Cirsium remotifolium Joseph P. Tracy 1938-7-6 16025 Humboldt Big Lagoon 30 Comment
  RSA0070876  Cirsium remotifolium Joseph P. Tracy 1921-7-31 5860 Humboldt Table Bluff. 121 Comment
  UC91789  Cirsium remotifolium var. odontolepis W. W. Price 1890-7-3 Humboldt Comment
  HSC59685  Cirsium vulgare George Kirn 1977-10-30 Humboldt Near rail bridge over Elk River 6 Comment
  HSC89489  Cirsium vulgare P. A. Daly 1986-2-28 65 Humboldt Trinidad Head, along trail 61 Comment
  UC1196992  Clarkia Joseph P. Tracy 1942-6-15 17170 Humboldt 5 mi n Garberville 152 Comment
  SBBG4940  Clarkia amoena H. and M. Dearing 1939-6-24 3702 Humboldt near Dinsmore, E of Bridgeville Comment
  CAS-BOT-BC160959  Clarkia amoena subsp. amoena S. K. Harris; J. P. Tracy 1936-6-10 3277 Humboldt West of the South Fork of the Trinity River near its mouth 640 Comment
  CAS-BOT-BC164180  Clarkia concinna Harley P. Chandler 1901-6-1 1325 Humboldt Hupa Indian Reservation 152 Comment
  HSC43846  Clarkia purpurea subsp. quadrivulnera Maralyn O'Meara 1974-7-17 555 Humboldt Comment
  CAS-BOT-BC172512  Clarkia purpurea subsp. quadrivulnera Mrs. H. C. Cantelow 1940-7-6 4034 Humboldt Near Dinsmore's Comment
  JEPS43827  Clarkia purpurea subsp. quadrivulnera Milo S. Baker 1923-7-20 67 b Humboldt Redwood House North Coast Comment
  RSA167262  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1950-6-15 18809 Humboldt Mail Ridge, North of Harris, Fort Seward Ranch Comment
  HSC98104  Clarkia rhomboidea Cara Witte 2007-6-20 309 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  CAS-BOT-BC439097  Claytonia cordifolia Joseph P. Tracy 1932-7-15 10583 Humboldt Trinity Summit. Ridges East of Corral Prairie 1828 Comment
  HSC67184  Claytonia exigua subsp. exigua Thomas W. Nelson, James Nelson 1980-6-10 5435 Humboldt Along E side of Red Mtn. 1372 Comment
  JEPS43314  Claytonia exigua subsp. exigua W. L. Jepson 1902-6-20 1903 Humboldt Ft. Seward Ranch Ridge 1219 Comment
  UC161030  Claytonia exigua subsp. exigua Joseph P. Tracy 1910-4-24 3128 Humboldt Ocean Beach at Humboldt Bay; Northern Coast Region, Humboldt Bay Comment
  HSC17692  Claytonia perfoliata R. van Weemen van Noord 1966-3-26 6 Humboldt N end of Samoa Drag Strip 6 Comment
  JEPS43376  Claytonia perfoliata subsp. mexicana Lincoln Constance 1934-5-26 681 Humboldt North Dyerville Flat grove South Fork Eel River, Bull Creek (near Founders' Tree) 48 Comment
  UC161025  Claytonia rubra subsp. depressa Joseph P. Tracy 1904-5-1 2048 Humboldt near Bucksport; Northern Coast Region, Humboldt Bay Region 0 Comment
  CAS-BOT-BC443727  Claytonia rubra subsp. rubra R. K. Gierisch; D. H. Esplin 1969-7-1 3534 Humboldt Six Rivers National Forest. Grouse Mtn. Comment
  HSC104454  Claytonia rubra subsp. rubra Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 6 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  UC673000  Claytonia rubra subsp. rubra Joseph P. Tracy 1929-7-4 8617 Humboldt French Camp Ridge 1066 Comment
  HSC98796  Claytonia saxosa Cara Witte 2008-6-2 667 Humboldt 1/2 mile southeast of intersection National Forest 1 and 5N01. 1570 Comment
  HSC17728  Claytonia sibirica D. E. Anderson 1961-8-11 1725 Humboldt Redwood preserve E of HSU campus 30 Comment
  CAS-BOT-BC443904  Claytonia sibirica D. E. Breedlove 1961-7-4 663 Humboldt On north bank of the Mad River, 1 mile east of Blue Lake on U.S. Highway 299 243 Comment
  HSC100899  Claytonia triphylla Carl C. Marshall Jun 1886 300 Humboldt Trinity Summit. Comment
  UC1541329  Clintonia andrewsiana H. E. and S. T. Parks May 1930 754 Humboldt up the Van Duzen River Van Duzen River Comment
  UC30060  Clintonia uniflora Mrs. M. H. Manning Humboldt near Hupa (Redwood Trail); Redwood Trail Comment
  UC162568  Collinsia linearis Joseph P. Tracy 1911-7-6 3336 Humboldt along road between Three Creeks and Mouth of Willow Creek (Northern Coast Ranges); Northern Coast Ranges 762 Comment
  HSC20603  Collinsia linearis H. E. Parks 1934-6-14 4789 Humboldt Horse Mtn. 1433 Comment
  RSA127512  Collinsia linearis Milo S. Baker 1946-6-15 11486 Humboldt Near Head of Willow Cr. Canyon, Trinity Hwy. Comment
  RSA21322  Collinsia linearis Carl B. Wolf 1937-8-13 9216 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  RSA30612  Collinsia linearis Lincoln Constance, R. C. Rollins 1942-5-12 2888 Humboldt Klamath River 10 miles northeast of Weitchpec. 122 Comment
  UC26620  Collinsia linearis Harley P. Chandler Jun 1901 1294 Humboldt Hupa Indian Reservation near Hupa (between The Swag and Hupa); North Coast Ranges, Hupa Indian Reservation 304 Comment
  UC727681  Collinsia linearis Milo S. Baker 1946-6-15 11486 Humboldt near Head of Willow Creek Canyon (Trinity Highway); Trinity Highway Comment
  HSC102536  Collinsia parviflora M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1522 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC70387  Collinsia parviflora M. A. Baker 1980-6-8 1887 Humboldt Near Buck Flat. 1554 Comment
  UC582447  Collinsia torreyi var. wrightii Joseph P. Tracy 1935-7-28 14314 Humboldt Trinity Summit, Head of Devils Hole Head of Devils Hole; Trinity Summit, Head of Devils Hole 1828 Comment
  HSC97946  Collomia grandiflora Cara Witte 2007-6-27 368 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Near intersection with 4N32B 1516 Comment
  HSC100589  Collomia heterophylla Carl C. Marshall Jun 1887 498 Humboldt Harris. Comment
  HSC71793  Collomia heterophylla Gail Newton 1980-6-16 177 Humboldt Near Monks Camp 109 Comment
  HSC89514  Collomia heterophylla M. Roantree 1985-4-28 20 Humboldt W side of Trinidad Head, along trail Comment
  UC535757  Collomia heterophylla Eleanor Armstrong 1934-5-17 Humboldt Garden Club Grove Comment
  UC1197841  Collomia heterophylla Joseph P. Tracy 1940-7-7 16668 Humboldt rocky bank Grouse Mt. 1463 Comment
  UC1197859  Collomia tinctoria Joseph P. Tracy 1941-8-24 17044 1/2 Humboldt openings in forest near McKay Camp; South Fork Mountain 1676 Comment
  UC1197865  Collomia tracyi Joseph P. Tracy 1939-8-16 16416 Humboldt gravelly places near Clear Lake; North Coast Ranges 1524 Comment
  NY643129  Convolvulus arvensis H. N. Moldenke 1932-7-4 7135 Humboldt Comment
  HSC18094  Coptis laciniata J. P. Tracy 1941-4-8 16856 Humboldt Willow Creek Canyon along Trinity Hwy. 762 Comment
  HSC100900  Coptis occidentalis Carl C. Marshall Apr 1887 374 Humboldt Supply Creek. 610 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
  HSC90639  Cordylanthus maritimus subsp. palustris Gail Newton 1983-8-21 3855 Humboldt Elk River Wildlife Area, Eureka. Comment
  POM319325  Cordylanthus maritimus subsp. palustris Patricia Wilder 1968-8-21 4413 Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  HSC58546  Cordylanthus tenuis subsp. viscidus Overton, Butler 1979-7-24 9568 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  UC1196814  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1949-8-4 18413 Humboldt Mud Springs Trinity Summit 1341 Comment
  CAS-BOT-BC101075  Coreopsis lanceolata Henry M. Pollard 1948-7-27 s.n. Humboldt Barker Ranch on Red Cap Creek, near Orleans Comment
  CAS-BOT-BC101149  Corethrogyne filaginifolia L. R. Abrams 1916-7-18 6096 Humboldt Arcata to Trinidad Comment
  CAS-BOT-BC209755  Cornus glabrata L. R. Abrams 1918-6-16 7162 Humboldt Willow Creek Comment
  RSA697172  Cornus nuttallii J. R. Bruff 1937-8-17 919 Humboldt Richardson Grove. Comment
  UC1196911  Cornus nuttallii Joseph P. Tracy 1908-6-9 2675 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC183588  Cornus nuttallii Joseph P. Tracy 1913-6-26 4345 Humboldt opposite Buck Mt. (Dinsmore's Ranch, Van Duzen R. Valley); Northern Coast Ranges, Van Duzen R. Valley, Dinsmore's Ranch 762 Comment
  UC412923  Cornus nuttallii P. E. Goddard 1906-6 692 Humboldt Lasseck Peak Comment
  CAS-BOT-BC212177  Cornus sericea Joseph P. Tracy 1947-6-26 17747 Humboldt Near McKay Camp, South Fork Mountain 1676 Comment
  UC1051594  Cornus sericea subsp. sericea Joseph P. Tracy 1948-9-2 18201 Humboldt head of Little Hors-Linto Creek (Trinity Summit); , Little Hors-Linto Creek 1371 Comment
  UC668295  Cornus sericea subsp. sericea Joseph P. Tracy 1935-7-25 14230 1/2 Humboldt near Corral Prairie (Trinity Summit); Trinity Summit 1584 Comment
  CAS-BOT-BC210541  Cornus sessilis Doris Kildale Gillespie 1941-4-16 s.n. Humboldt Unspecified Comment
  UC1196903  Cornus sessilis Joseph P. Tracy 1941-3-26 16846 Humboldt Four-mile Creek near mouth of S. Fork Trinity R. 609 Comment
  UC54930  Corylus californica P. E. Goddard 1901-7-6 21 Humboldt Hupa Comment
  HSC12545  Cotula coronopifolia C. Kline 1970-10-28 52 Humboldt North Bank Rd., 3 mi. W of Blue Lake, Mad River gravel bottoms Comment
  SEINET13729302  Crassula aquatica Unknown 1912-6-9 3689 Humboldt Plants of Northern Coast Region of Califonia In muddy ground. ALTON, HUMBOLDT COUNTY Altitude 100 to 300 Comment
  UC249632  Crassula connata var. erectoides Joseph P. Tracy 1921-4-24 5445 Humboldt Phillipsville Flat Northern Coast Ranges, S. Fork Eel R., Phillipsville Flat 91 Comment
  HSC57409  Crepis acuminata G. L. Clifton, Griswold 1979-7-26 10167 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  CAS-BOT-BC290585  Crepis capillaris Doris K. Kildale 1927-6-25 3540 Humboldt Shelter Cove Comment
  UC1787278  Crepis capillaris G. K. Helmkamp, E. A. Helmkamp 2001-7-8 6992 Humboldt North coast redwood area; CA-36, along the Van Duzen R. 19.6 mi E of US-101 (W of Bar W rd). 137 Comment
  CAS-BOT-BC290588  Crepis capillaris A. A. Heller 1923-7-9 13777 Humboldt About 5 miles east of Arcata along the road to Blue Lake Comment
  HSC49083  Crepis capillaris Patricia Shesgreen 1978-8-5 128 Humboldt Along 16th St., 100 yards E of Union St., Arcata Comment
  UC1223028  Crepis occidentalis Joseph P. Tracy 1951-6-26 19575 Humboldt Twin Lakes vicinity Comment
  RSA113707  Crepis setosa Joseph P. Tracy 1947-7-13 17769 Humboldt Hors-Linto Creek, near the mouth in woods along an old road 152 Comment
  RSA246757  Crocosmia X crocosmiiflora Robert F. Thorne, Percy C. Everett 1965-8-8 35271 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  UC525589  Cryptantha flaccida Joseph P. Tracy 1930-6-15 8750 Humboldt near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  UCSB14885  Cryptantha leiocarpa 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  HSC58237  Cryptantha torreyana Walter Overton 1979-8-1 12396 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  RSA135453  Cryptantha torreyana Volney Rattan 1882-06 s.n. Humboldt North of Mad River. Comment
  HSC82604  Cryptogramma acrostichoides Thomas W. Nelson 1979-7-11 4990 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  RSA639037  Cuscuta californica R. F. Thorne, P. C. Everett 1965-8-7 35226 Humboldt Samoa Peninsula. 3 Comment
  HSC57637  Cuscuta occidentalis G. L. Clifton, Griswold 1979-7-25 10796 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  SEINET3480723  Cuscuta salina C. C. Harris, S. K. Harris 1941-7-28 1894 Humboldt Humboldt Bay near Table Bluff, Humboldt Bay near Table Bluff, Parasitic on Salicornia ambigua Comment
  UC35080  Cuscuta salina var. major Chesnut and Drew Aug 1888 Humboldt Eureka Comment
  UC562484  Cuscuta salina var. major Joseph P. Tracy 1933-8-22 12990 Humboldt Mouth of Eel River 3 Comment
  UC525558  Cynoglossum grande Joseph P. Tracy 1927-6-12 8154 Humboldt lower slopes Horse Mt.; Northern Coast Ranges, Horse Mt. 1219 Comment
  CHSC83244  Cynosurus cristatus Ray Evens 1956-7-19 Humboldt 4.5 miles northwest of Petrolia. Comment
  UCD60127  Cynosurus cristatus Ray Evans 1956-7-19 s. n. Humboldt 4.5 miles northwest of Petrolia. Comment
  UCD60132  Cynosurus cristatus R. Tofsrud 1949-7-1 s. n. Humboldt South edge of Scotia. Comment
  CAS-BOT-BC190378  Cynosurus echinatus J. W. Tilden 1946-6-21 s.n. Humboldt Bluff Creek. Comment
  HSC89500  Cynosurus echinatus M. Roantree 1985-5-30 68 Humboldt West side of Trinidad Head Comment
  UC213326  Cyperus bipartitus Joseph P. Tracy 1920-8-15 5383 Humboldt Klamath R. at Bluff Creek; Northern Coast Ranges, Klamath R. 152 Comment
  UC668033  Cyperus eragrostis Joseph P. Tracy 1937-8-3 15612 Humboldt along Mad R. near Blue Lake; Mad R. 15 Comment
  UC1103634  Cyperus strigosus Joseph P. Tracy 1920-8-15 5377 Humboldt Klamath R. at mouth of Bluff Creek; Northern Coast Ranges, Klamath R. 152 Comment
  HSC54855  Cystopteris fragilis G. L. Clifton, Griswold 1979-7-25 10750 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC14671  Cytisus scoparius Harvey Doerksen 1962-5-22 26 Humboldt .5 mi. E of Hwy. 299-101 junction. Comment
  CAS-BOT-BC189767  Dactylis glomerata Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  HSC34813  Dactylis glomerata Dryden 1975-4-20 122 Humboldt Arcata 0 Comment
  HSC54606  Dactylis glomerata Overton, Butler 1979-7-24 9690 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC79501  Dactylis glomerata Kenneth Clark 1980-6-14 685 Humboldt Shelter Cove; in stream alluvium of N fork of Dead Man's Gulch 198 Comment
  UCSC000025  Dactylis glomerata H. S. Yates 1936-6-23 5852 Humboldt 2 miles E. of the Mad River Mad River - Eureka 30 Comment
  HSC71722  Danthonia californica Marc Baker 1980-7-26 2465 Humboldt Near Sims Creek. 610 Comment
  UC552754  Danthonia intermedia Joseph P. Tracy 1934-7-18 13421 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC98100  Danthonia unispicata Cara Witte 2007-6-20 306 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  UC1152019  Danthonia unispicata Joseph P. Tracy 1951-7-26 19593 Humboldt Redwwod Creek Board Camp Mountain (extreme head, n side of mt.) Comment
  UC673050  Daucus carota Joseph P. Tracy 1940-10-17 16761 Humboldt near Dyerville (South Fork Station); South Fork Station 48 Comment
  HSC78607  Daucus pusillus L. P. Janeway, Paul Wilson 1984-5-7 767 Humboldt N Spit of Humboldt Bay, just behind foredunes near 'Flag 1 3 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
  HSC37516  Delphinium menziesii J. D. Ackerman 1974-5-25 265 Humboldt 0.25 mi. S of Lufenholtz Beach between Moonstone and Trinidad Comment
  CAS-BOT-BC9960  Delphinium nudicaule Volney Rattan 1878-1-1 s.n. Humboldt not specified Comment
  HSC25013  Delphinium nudicaule R. A. Rasp 1964-4-5 28 Humboldt 5 mi. N of Hoopa on Willow Creek Rd. Comment
  SEINET12099565  Delphinium nudicaule J. P. Tracy 1950-1 18815 Humboldt Mail Ridge, N of Harris 7 mi, "Huestis Rock" on NE side of Ridge Comment
  UC1196333  Delphinium nudicaule Joseph P. Tracy 1922-5-29 6081 Humboldt rocky slopes at head Northern Coast Ranges, South Yager Creek 762 Comment
  UC503038  Delphinium nuttallianum Joseph P. Tracy 1929-4-28 8556 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC162819  Delphinium trolliifolium Joseph P. Tracy 1908-6 2712 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  CAS-BOT-BC121964  Delphinium trolliifolium Mrs. H. C. Cantelow 1941-4-19 s.n. Humboldt 8.4 miles SW of Ferndale on road to Cape Mendocino. Comment
  UC637044  Deschampsia cespitosa subsp. beringensis Edward Lee 1934-8-17 1153 Humboldt 35 mi. n. Eureka (e. shore of Big Lagoon); Big Lagoon 3 Comment
Read comments Sep 27 2007
  UC552695  Deschampsia cespitosa subsp. cespitosa Joseph P. Tracy 1934-7-20 13456 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  HSC98875  Deschampsia danthonioides Cara Witte 2007-5-23 99 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1.5 miles south of intersection with 5N04 and 4N32E. 1402 Comment
  CAS-BOT-BC174313  Deschampsia elongata J. O. Sawyer; R. J. Cole 1977-7-3 3019 Humboldt Environs of Mud Spring. Big Hill Road (F.S. 8N01) 1524 Comment
  CAS-BOT-BC201771  Deschampsia elongata H. N. Bolander 1862-1-1 s.n. Humboldt Unspecified Comment
  HSC26662  Deschampsia elongata J. P. Smith, Steve Selva 1970-6-14 3830 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC9613  Deschampsia elongata R. D. Rogers 1964-5-2 32 Humboldt Janes Creek area, 1 mi. N of Arcata, logging road. Comment
  UC1103214  Deschampsia elongata J. P. Tracy 1900-7-4 874 Humboldt sand hills of Ocean Beach at Samoa; , Ocean Beach Comment
  UC212876  Deschampsia elongata Joseph P. Tracy 1919-9-22 5271 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  HSC8603  Deschampsia elongata D. W. C. 1956-5-29 13 Humboldt Mattole- Rio Del -Atwell Creek Comment
  HSC99586  Dianthus armeria K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 251 Humboldt Near North Trinity Mtn, Government Trail, near Box Camp, Six Rivers National Forest. 1387 Comment
  HSC22052  Dicentra formosa B. D. Rogers, D. E. Anderson 1965-4-1 414 Humboldt 4 mi. SE of Arcata along Jacoby Creek Comment
  SEINET12805277  Dicentra formosa John D. Freeman, Ruth F. Freeman 1967-1 586 Humboldt Just w of Cal Hwy 36 and just N of Carlotta 43 Comment
  HSC26393  Dicentra formosa Brad Klipfel 1973-4-24 3 Humboldt Blue Lake on Hwy. 299 Comment
  RSA0056407  Dicentra formosa James R. Shevock 1971-5-29 1139 Humboldt Trinity Hwy, 229. 243 Comment
  HSC72685  Dicentra formosa subsp. oregana J. P. Smith 1977-7-3 9267 Humboldt Onion Lake Comment
  SEINET200952 Image available Dichanthelium acuminatum subsp. fasciculatum Joseph P. Tracy 1906-7-1 2517 Humboldt Eureka 61 Comment
  RSA152289  Dichanthelium acuminatum var. fasciculatum Joseph P. Tracy 1942-7-18 17286 Humboldt 1/2 mile N. E of Garberville 30 Comment
  UC413903  Dichelostemma X venustum Lee Harris Jun 1930 Humboldt Comment
  UC1222675  Dichelostemma capitatum Joseph P. Tracy 1950-6-25 18877 Humboldt nw slope Buck Mountain (on Burr Valley Road) 914 Comment
  HSC63226  Dichelostemma capitatum subsp. capitatum M. A. Baker 1978-5-6 462 Humboldt Junction of Bald Hills Rd. with French Camp Rd. Comment
  UC1198164  Dichelostemma congestum Joseph P. Tracy 1917-6-17 4814 Humboldt near Field's Landing (Still Farm, near Humboldt Bay); Northern Coast Ranges, Humboldt Bay 15 Comment
  CAS-BOT-BC501022  Dichelostemma ida-maia Henry M. Pollard 1946-8-16 s.n. Humboldt Across [Klamath] river from Orleans Comment
  JEPS5678  Dichelostemma ida-maia Milo S. Baker 1923-7-28 139 Humboldt South Fork Yager Creek Comment
  RSA376820  Dichelostemma ida-maia Hutchinson 1927-5-1 s.n. Humboldt [No locality information provided] Comment
  SEINET3885615  Dichelostemma ida-maia Jan G. Cooper 1976-8-2 5 Humboldt Along road to Horse Mountain Ski area turnoff of Hwy 299.; 0 1219 Comment
  SEINET3885616  Dichelostemma ida-maia John Sawyer 1970-6-24 2216 Humboldt Hoopa quad. Serpentine ridge on Big Hill Road east of Hoopa.; 0 1189 Comment
  SJSU912  Dichelostemma ida-maia J. W. Tilden 1946-6-20 1008 Humboldt Bluff Creek c. 1.5 mi above junction with Klamath River Comment
  UCSB13002  Dichelostemma ida-maia Muller, Katherine 1954-6-21 Humboldt Mad River Camp #2 on Mad River, below Ruth P.O. Comment
  HSC69691  Digitalis purpurea R. Kalal 1980-5-18 24 Humboldt Hwy. 101, 0.5 mi. W of Orick 6 Comment
  UCD63953  Digitaria ischaemum Joseph P. Tracy 1950-9-22 19371 Humboldt Klamath River, near Slate Creek, below Orleans 8 miles. 121 Comment
  SEINET13768865 Image available Diplacus aurantiacus Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-1 15332 Humboldt Ten miles South Squaw Creek Comment
  SEINET8354549  Diplacus aurantiacus Unknown 1960-6-9 935 Humboldt 2 mi. s. Miranda; U.S. Hwy 101. 91 Comment
  CAS-BOT-BC153237  Diplacus kelloggii S. K. Harris; J. P. Tracy; H. S. Yates 1936-6-17 3406 Humboldt Burr Valley, on Buck Mountain 1036 Comment
  CHSC579  Dipsacus fullonum M. Anthony 1960-5-14 Humboldt Arcata. Comment
  UC666969  Disporum hookeri Joseph P. Tracy 1938-6-13 15898 Humboldt Horse Mountain 1432 Comment
  POM277205  Disporum smithii Lyman Benson 1929-6-12 1752 Humboldt Weott Ranger St[ation]; S Fork Eel River. Comment
  SDSU11887  Disporum smithii Harvey 1938-8-13 2243 Humboldt Humbolt State Redwood Park Comment
  HSC9632  Distichlis spicata J. M. Johnson 1962-7-29 Humboldt On dike beside Mad River slough, W.M. Lanphere Farm, Samoa peninsula. Comment
  UC562749  Dodecatheon alpinum Joseph P. Tracy 1932-7-14 10565 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  RSA93304  Downingia elegans var. corymbosa F. W. Peirson 1923-7-10 3871 Humboldt Wood border opening near road about 6 miles N of Garberville Comment
  HSC39929  Draperia systyla J. O. Sawyer 1970-6-25 2301 Humboldt 1646 Comment
  HSC49811  Drosera rotundifolia R. York 1979-4-13 227 Humboldt Big Lagoon Bog. Comment
  HSC99662  Drosera rotundifolia Gordon Leppig 1997-6-19 451 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  RSA0011668  Drosera rotundifolia C. B. Wolf 1934-7-2 5897 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  SEINET13728350  Drosera rotundifolia Unknown 1914-9-6 4601 Humboldt Plants of Northern Coast Ranges of California Bald Mountain, between High Prairie and Snow Camp, Humboldt County Comment
  CAS-BOT-BC159613  Drymocallis glandulosa var. glandulosa Doris K. Kildale 1929-5-26 9136 Humboldt Klamath River at Orleans 152 Comment
  HSC58089  Drymocallis lactea var. lactea G. L. Clifton, Griswold 1979-8-1 11998 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  CAS-BOT-BC158415  Drymocallis rhomboidea Doris Kildale Gillespie 1931-6-7 10609 Humboldt South Fork Mt. Blake Lookout 1726 Comment
  CAS-BOT-BC428297  Dudleya farinosa Doris K. Kildale 1927-6-25 3544 Humboldt Shelter Cove. Comment
  HSC7297  Dulichium arundinaceum D. E. Anderson 1962-9-14 2340 Humboldt Fish Lake area Comment
  UC180503  Echinochloa crus-pavonis Joseph P. Tracy 1914-10-11 4634 Humboldt Eureka; Northern Coast Region 0 Comment
  UCD49713  Eleocharis acicularis Joseph P. Tracy 1934-7-13 13393 Humboldt Carpeting dried-up bed of pond. Dow's Prairie. 60 Comment
  UC1103668  Eleocharis bella Joseph P. Tracy 1927-8-7 8313 Humboldt Lack Pond, opposite mouth of Willow Creek Trinity River Valley 152 Comment
  UC1103666  Eleocharis macrostachya Joseph P. Tracy 1935-5-25 13849 Humboldt Fort Seward 106 Comment
  CAS-BOT-BC112839  Eleocharis macrostachya David Daniels Keck 1938-8-5 4768 Humboldt Big Lagoon, on shore in drying clay mud. Comment
  SEINET200968  Eleocharis obtusa Joseph P. Tracy 1911-7-7 3401 Humboldt 3 miles northwest of junction of Willow Creek with Trinity River and near Beebe's Ranch. 914 Comment
  RSA53823  Eleocharis obtusa var. engelmannii Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  SEINET201036  Elymus elymoides subsp. brevifolius Joseph P. Tracy 1919-9-23 5279 Humboldt Trinity Summit 1829 Comment
  HSC103095  Elymus elymoides subsp. californicus Sydney Carothers 2014-7-3 19 Humboldt Six Rivers National Forest, Lassics Botanical Area, Mt. Lassic, upper north slope 1775 Comment
  HSC99108  Elymus elymoides var. elymoides Cara Witte 2007-6-27 373 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 2/10 mile from intersection with 4N32B. 1413 Comment
  HSC68971  Elymus glaucus Jacqueline Greenleaf 1980-8-12 315 Humboldt Near Henry Ridge. 1128 Comment
  CAS-BOT-BC203472  Elymus glaucus subsp. glaucus Joseph P. Tracy 1935-6-22 13958 Humboldt Holmes Flat 60 Comment
  HSC9747  Elymus glaucus subsp. virescens J. P. Tracy 1927-6-26 8213 Humboldt Stone Lagoon Comment
  SJSU10755  Elymus mollis subsp. mollis H. T. Harvey 1977-7-5 595 Humboldt Elk River Spit, near Eureka, Humboldt Bay Comment
  UC1103131  Elymus multisetus Joseph P. Tracy 1912-8-3 3962 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC523866  Elymus multisetus Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1346 Humboldt near bridge on Trinity Highway; Floodplain of Trinity River 152 Comment
  CDA30232  Epilobium brachycarpum M. K. Beyers, I. Shepardson 2009-9-13 257 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
  RSA40412  Epilobium brachycarpum P. A. Munz 1948-8-13 12348 Humboldt Highway 229, 21 miles E of Blue Lake. 762 Comment
  UC1198485  Epilobium brachycarpum Joseph P. Tracy 1934-8-31 13648 Humboldt roadside Kneeland Prairie 762 Comment
  JEPS31511  Epilobium campestre Joseph P. Tracy 1938-7-5 16004 Humboldt open flat by old Strong's District School House (in dried pond bed, 5 mi e of town); Carlotta 45 Comment
  RSA225519  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-13 14380 Humboldt 10 miles west of Willow Creek. Comment
  UC902178  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1949-8-7 18444 Humboldt Box Camp Trinity Summit (meadow) 1463 Comment
  UC505125  Epilobium densiflorum Joseph P. Tracy 1932-8-21 10361 Humboldt Three Cabins Northern Coast Ranges, Chaparral Mountain (lower w foothills of mt.) 457 Comment
  HSC99090  Epilobium densiflorum Cara Witte 2008-7-10 860 Humboldt National Forest Road 4N06. 1 mile west of National Forest 1. 1234 Comment
  POM247179  Epilobium glaberrimum subsp. glaberrimum Joseph P. Tracy 1936-8-7 15102 Humboldt Trinity Summit, head of Hors-Linto Creek 1524 Comment
  HSC98676  Epilobium hornemannii subsp. hornemannii Cara Witte 2007-6-21 324 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1430 Comment
  RSA256576  Epilobium minutum D. E. Anderson 1972-6-20 5747 Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  HSC53953  Epilobium oreganum Terry Griswold, Marvin Butler 1979-7-11 7003 Humboldt Near Snow Camp Lake, close to the town of Willow Creek 1393 Comment
  SEINET10632319  Epilobium oreganum Joseph P. Tracy 1932-7-16 Tracy 1061 Humboldt Trinity Summit, Corral Prairie 1500 Comment
  CAS-BOT-BC171846  Epilobium septentrionale Carl B. Wolf 1927-8-30 1235 Humboldt 2 mi. so. of Petrolia on Matole River near where road crosses river. Comment
  RSA259564  Epipactis gigantea D. E. Anderson, J. P. Smith 1971-6-28 J- 1224 Humboldt Growing along Mad River ca. 2 mi. south of Blue Lake. Comment
  HSC16602  Epipactis gigantea J. Wendell Howe 1931-6-18 Humboldt Redway Comment
  HSC60046  Equisetum arvense M. A. Baker 1978-5-6 508 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  UC503074  Equisetum hyemale subsp. affine Joseph P. Tracy 1927-8-7 8316 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC62558  Equisetum hyemale subsp. affine P. E. Goddard July 1901 88 Humboldt Hupa Comment
  UC667935  Equisetum hyemale subsp. affine Joseph P. Tracy 1928-6-17 8456 Humboldt at Willow Creek Trinity River Valley Comment
  SEINET3865662 Image available Equisetum hyemale var. robustum J. P. Smith, class 1971-10-9 4996 Humboldt Banks and flood plain of the Mad River above the Fish Hatchery.; 0 Comment
  CAS-BOT-BC57231  Equisetum laevigatum H. E. Parks; Joseph P. Tracy 1927-4-24 7925 Humboldt Eureka 6 Comment
  HSC76320  Equisetum telmateia subsp. braunii Teresa Prendusi 1981-7-23 348 Humboldt Near Black Mtn. 890 Comment
  CAS-BOT-BC278518  Eragrostis pilosa var. pilosa Henry M. Pollard 1947-8-30 s.n. Humboldt Near Wilson Creek, Klamath River, Orleans region Comment
  CAS-BOT-BC291166  Erechtites glomeratus M. Louise Hutchinson 1913-5-1 s.n. Humboldt Eureka Comment
  HSC34983  Erechtites glomeratus Thomas W. Nelson 1974-9-13 1710 Humboldt King Salmon area Comment
  HSC37908  Erechtites glomeratus Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  UC502962  Eremocarpus setiger Joseph P. Tracy 1927-10-23 8390 Humboldt McClellan Mountain Northern Coast Ranges 762 Comment
  RSA47111  Ericameria greenei Doris K. Kildale 1925-8-17 1212 Humboldt Trinity Summit 1829 Comment
  UC204831  Erigeron biolettii Joseph P. Tracy 1918-7-6 5052 Humboldt near Humboldt-Mendocino County line (rock ledges along river); South Fork Eel River 152 Comment
  UC583067  Erigeron biolettii P. A. Munz 1936-8-9 14331 Humboldt 5 mi n Humboldt-Mendocino county line; south fork Eel River Comment
  UC672190  Erigeron biolettii Frank W. Peirson 1923-7-9 3877 Humboldt Humboldt County State Park Eel River, Humboldt County State Park Comment
  CAS-BOT-BC296107  Erigeron foliosus var. confinis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC296117  Erigeron foliosus var. confinis Doris K. Kildale 1928-7-1 9436 Humboldt Bluff Creek, Klamath River Comment
  UC895847  Erigeron foliosus var. mendocinus L. R. Abrams 1916-7-11 6055 Humboldt at mouth of Grizzly Creek (on Van Duzen River); Van Duzen River, Grizzly Creek Comment
  CAS-BOT-BC300677  Erigeron foliosus var. mendocinus Doris K. Kildale 1925-7-19 1046 Humboldt Bridgeville 228 Comment
  RSA167385  Erigeron foliosus var. mendocinus Joseph P. Tracy 1951-7-24 19625 Humboldt Blue Slide, on Van Duzen River 91 Comment
  CHSC69497  Erigeron glaucus Vernon Oswald; Lowell Ahart 1997-9-4 8851 Humboldt North Spit of Humboldt Bay, west side of New Navy Base Rd. 1.1 mi south of Hwy. 255. 6 Comment
  HSC29848  Erigeron glaucus Thomas W. Nelson 1971-11-11 596 Humboldt Sand dunes at the foot of Murray Rd. McKinleyville Comment
  HSC5523  Erigeron glaucus J. R. Kahl 1962-5-13 34 Humboldt 2 mi. S of Trinidad along old Hwy. 101, 50 yds. from ocean Comment
  HSC67444  Erigeron glaucus J. P. Smith 1971-10-6 4955 Humboldt At the end of Murray Rd., McKinleyville Comment
  UC594158  Erigeron glaucus S. K. Harris 1936-6-15 3380 Humboldt Trinidad Head. Comment
  CAS-BOT-BC295171  Erigeron inornatus Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC102241  Erigeron inornatus var. inornatus Sydney Carothers 2011-9-17 Humboldt Bret Hole; 1.1 km SW of Trinity Summit 1579 Comment
  HSC57622  Erigeron klamathensis G. L. Clifton, Griswold 1979-7-25 10752 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC127577  Erigeron philadelphicus var. philadelphicus Harley P. Chandler 1901-6-1 1402 A Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  POM126126  Erigeron strigosus Joseph P. Tracy 1923-6-27 6384 Humboldt Trinity River Valley, near Willow Creek Comment
  CDA22611  Eriogonum latifolium T. C. Fuller 1961-9-28 7050 Humboldt Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  UC6341  Eriogonum latifolium Harley P. Chandler May, 1901 1205 Humboldt Humboldt Bay 3 Comment
  CAS-BOT-BC259537  Eriogonum luteolum var. luteolum Doris K. Kildale 1926-8-29 2594 Humboldt On Van Duzen River at Swimmer's Delight near Strong's Station Comment
  HSC98381  Eriogonum luteolum var. luteolum R. Sutherland 1976-8-24 6 .24876 Humboldt 543 Comment
  UC6566  Eriogonum luteolum var. luteolum C. C. Marshall 1888-1 Humboldt Comment
  CAS-BOT-BC261493  Eriogonum nudum var. nudum Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  UC1198138  Eriogonum nudum var. nudum Joseph P. Tracy 1930-6-15 8766 Humboldt Dobbyn Creek 152 Comment
  HSC35618  Eriogonum nudum var. nudum Thomas W. Nelson, B. Reinhardt 1975-7-30 2114 Humboldt E of Pilot Rock Comment
  RSA44500  Eriogonum nudum var. nudum H. M. Pollard 1947-8-22 s.n. Humboldt Klamath River bed near Fontana's Fishing Lodge, Orleans region Comment
  RSA393303  Eriogonum nudum var. pubiflorum H. M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek near Orleans. Comment
  SEINET11945862  Eriogonum nutans var. nutans Tiehm 1995-5-21 12092 Humboldt extreme S end of Bilk Creek Mts, just NW of Sod House near where the Quinn River crosses hwy 140 1326 Comment
Read comments Jun 2 2019
  UC672894  Eriogonum umbellatum var. argus Joseph P. Tracy 1935-7-23 14133 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  HSC98098  Eriogonum umbellatum var. goodmanii Cara Witte 2007-6-20 307 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  HSC95795  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8345 Humboldt Along FS Rd. 1 at S end of Whiting Ridge, 0.5 mi. WNW of High Salt Ground, 9.3 mi. W of Hyampom 1296 Comment
  UC1980558  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8347 Humboldt Along U. S. Forest Service Road 1 near White Rock Springs at milepost 7.6, about 7.8 southwest of Salyer. Comment
  HSC99135  Eriogonum umbellatum var. nelsoniorum Cara Witte 2008-7-10 854 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  UC198878  Eriophorum crinigerum H. N. Bolander, Kellogg, M. D. and Co. Humboldt Red Mt. Comment
  UC303021  Eriophorum crinigerum Joseph P. Tracy 1926-6-20 7637 Humboldt Horse Mt. Northern Coast Ranges, Horse Mt. 1463 Comment
  OBI36670  Eriophyllum lanatum David J. Keil 1983-7-2 17314 Humboldt Ca. 4 mi SE of SR 299 along Titlow Hill rd below Horse Mtn Summit Rd Comment
  JEPS17991  Eriophyllum lanatum var. achilleoides George B. Rossbach 1955-6-10 533 Humboldt 2 mi no of Stephens Redwood Grove (Route 101 along s fork of Eel River, in redwood forest area); South fork of Eel River Comment
  UC984818  Eriophyllum lanatum var. achilleoides A. M. Vollmer and L. Beane 1951-6-6 125 Humboldt on road between Orick and Weitchpec Comment
  HSC60054  Eriophyllum lanatum var. arachnoideum M. A. Baker 1978-5-20 567 Humboldt W side of the Klamath River along Hwy. 96 Comment
  HSC91916  Eriophyllum lanatum var. arachnoideum E. Mackey 1986-7-21 Humboldt Patrick's Point State Park; Wedding Rock Trail Comment
  UC1223128  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1944-7-3 17480 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  UC1223132  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1987-7-4 17784 Humboldt ridge top 1 mi w of Mud Springs (in serpentine formation); Trinity Summit 1158 Comment
Read comments Jun 28 2015
  CAS-BOT-BC301684  Eriophyllum lanatum var. lanceolatum Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC8501  Erodium cicutarium Jack Rockwell 1962-4-29 66 Humboldt N Bank of Van Duzen River, E of Hwy. 101 Comment
  UC275489  Erodium cicutarium Joseph P. Tracy 1925-4-5 6959 Humboldt Lawrence Creek, at crossing of the Kneeland Road Northern Coast Ranges 609 Comment
  HSC64123  Erysimum capitatum var. capitatum J. P. Smith 1973-5-26 6791 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  CHSC19730  Erythranthe dentata Gary J. Stebbins 1970-5-17 81 Humboldt Along Jolly Giant Creek up from H. S. C. dorms 1.9 miles from the parking lot. 70 Comment
  CAS-BOT-BC383041  Erythranthe grandis David B. Lowry 2005-5-16 GBM Humboldt Along Gold Bluffs Road between Ranger Kiosk and Fern Canyon 11 Comment
  CAS-BOT-BC383055  Erythranthe nasuta David B. Lowry 2005-5-14 KNR Humboldt Along Kneeland Road, just south of the intersection with Mountain View Road 658 Comment
  CAS-BOT-BC133258  Erythronium L. R. Abrams 1918-6-15 7099 Humboldt Brannan Mt near Willow Creek 1371 Comment
  CAS-BOT-BC504307  Erythronium californicum Doris K. Kildale 1928-5-1 5983 Humboldt MacLellan Mountain 914 Comment
  UC275550  Erythronium californicum Joseph P. Tracy 1924-4-27 6639 Humboldt on hwy near Ruby Creek; Northern Coast Ranges, Willow Creek 609 Comment
  HSC32248  Erythronium grandiflorum subsp. grandiflorum J. O. Sawyer 1970-6-24 Humboldt W of Mill Creek Lakes. 1677 Comment
  CAS-BOT-BC403037  Eschscholzia californica Joseph P. Tracy 1937-7-29 15598 Humboldt South Fork Mountain. West slope near top, at Hyampom Trail 1676 Comment
  HSC39172  Euchiton gymnocephalus D. E. Anderson, J. P. Smith 1971-6-28 - 1230 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  UC562612  Euchiton gymnocephalus Joseph P. Tracy 1935-7-20 14110 Humboldt near Blue Lake (on Trinity Highway); North Coast Ranges 274 Comment
  JEPS20472  Euchiton sphaericus Joseph P. Tracy 1936-8-23 15162 Humboldt Carlotta 30 Comment
  UC562615  Euchiton sphaericus Joseph P. Tracy 1936-8-24 15176 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  JEPS52428  Euphorbia spathulata Joseph P. Tracy 1926-5-9 7455 Humboldt near Bridgeville; Northern Coast Ranges 762 Comment
  CDA28953  Euphorbia virgata T. Chapple 2009-6-1 s.n. Humboldt Vicinity of Orleans, found on Klamath River access road. 0 Comment
  CAS-BOT-BC310682  Euthamia occidentalis S. K. Harris; Charlotte Wilder 1938-9-7 s.n. Humboldt Bars of the Van Dusen River, above Blue Slide Comment
  RSA273307  Festuca californica var. californica Thomas W. Nelson, Jane P. Nelson 1976-6-16 2740 Humboldt West of Alder Springs along 2S07. 1524 Comment
  UCD65925  Festuca elmeri Al Murphy 1949-6-1 Humboldt Fort Baker. Comment
  UCD65930  Festuca elmeri A. A. Beetle; G. L. Stebbins Jr. 1942-6-2 3467 Humboldt 2 miles west of Bridgeville, banks above Van Dusen River. Comment
  HSC32491  Festuca occidentalis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5722 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC74556  Festuca occidentalis M. A. Baker 1980-7-11 2774 Humboldt Near Red Mtn. 1341 Comment
  HSC90075  Festuca occidentalis Sam Stroich Jr., Rolf Miller, Brian Pereira 1990-4-28 50 Humboldt Hwy. 299, 4 mi. W of Burnt Ranch, Grey Falls campground 396 Comment
  UC70908  Festuca occidentalis Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5396 b Humboldt Hubbards Station Comment
  UCD66180  Festuca occidentalis A. H. Murphy 1948-6-30 Humboldt 2 miles west of McComb's Ranch, Bald Hills, 7-8 miles southeast of Orick. Comment
  HSC37920  Festuca rubra Peter Sorensen 1976-7-14 Humboldt Woodley Island Comment
  UC1132004  Festuca rubra H. L. Person 1932-5-11 Humboldt near Arcata; Eureka Quad. 0 Comment
  UC525639  Festuca rubra Joseph P. Tracy 1927-7-4 8238 Humboldt Lone Star Creek North Coast Ranges, Iaqua District 609 Comment
  CAS-BOT-BC453521  Fragaria chiloensis Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC72767  Fragaria chiloensis Therese Glowacki 1981-4-12 20 Humboldt .6 km. W of Centerville Rd., 1.6 km. S of Centerville, 9.6 km. SW of Ferndale 4 Comment
  HSC18636  Fragaria vesca S. S. Stutz 1963-3-24 14 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  HSC70730  Fragaria vesca Gail Newton 1980-7-14 1526 Humboldt Near Deadman Ridge 1097 Comment
  UC183615  Fragaria vesca Joseph P. Tracy 1912-5-11 3585 Humboldt near Hydesville; Northern Coast Region 30 Comment
  CAS-BOT-BC457926  Fragaria vesca subsp. californica Doris K. Kildale 1927-3-20 2910 Humboldt Phillipsville, south fork of Eel River Comment
  CAS-BOT-BC53405  Frangula californica subsp. occidentalis Carl B. Wolf 1931-8-30 2377 Humboldt Lord Ellis Road, 9 mi. above Willow Creek on grade from Willow Creek to Blue Lake 304 Comment
  CAS-BOT-BC59964  Frangula purshiana W. R. Dudley 1899-6-19 s.n. Humboldt Scotia. Comment
  CAS-BOT-BC59967  Frangula purshiana H. E. McMinn 1922-8-5 347 Humboldt Along Van Duzen River Comment
  HSC59446  Frangula purshiana Kenneth Clark 1979-5-29 367 Humboldt 0.1 mi. past end of Granite Ave. 23 Comment
  SBBG26941  Frangula purshiana subsp. purshiana C. B. Wolf 1937-8-13 Humboldt 11 mi E of Hoopa Valley on new rd towards Trinity summit 1524 Comment
  CAS-BOT-BC217696  Fraxinus latifolia Doris K. Kildale 1925-6-21 735 Humboldt Briceland Bridge 1/2 mi. west of Garberville Comment
  HSC15543  Fritillaria affinis A. H. Teshima 1963-5-8 34 Humboldt Moonstone Beach area Comment
  HSC15539  Fritillaria affinis D. E. Anderson 1962-5-1 2189 Humboldt Junction of Redwood Creek Rd. and rd. to Hoopa Comment
  HSC43114  Fritillaria affinis Maralyn O'Meara 1974-5-14 362 Humboldt Beside Hwy. 36, 14.2 mi. E of Bridgeville Comment
  RSA79369  Fritillaria affinis E. K. Balls, Lee W. Lenz 1952-5-12 17194 Humboldt 3.9 miles east of Bridgeville along Highway 36 Comment
  RSA90637  Fritillaria affinis Ralph Lewis 1936-4-10 s.n. Humboldt Along Redwood Highway, first bridge south of Cummings Comment
  UC1225860  Fritillaria affinis Joseph P. Tracy 1947-4-27 17674 Humboldt Table Bluff, on Tompkins Hill Road Table Bluff; , Tompkins Hill Road 152 Comment
  HSC38787  Fritillaria purdyi J. P. Smith 1976-5-30 8826 Humboldt Near Black Rock on road to Clear Lake 1524 Comment
  UC667119  Fritillaria purdyi Joseph P. Tracy 1938-6-13 15925 Humboldt Horse Mt. 1432 Comment
  UC175294  Fritillaria recurva Joseph P. Tracy 1913-6-17 4176 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  HSC16383  Fuchsia magellanica N. D. Dennis 1965-5-5 48 Humboldt 2 mi. N of Trinidad, 1 mi. E of College Cove Comment
  HSC100647  Galium Carl C. Marshall 76 Humboldt No data. Comment
  CHSC31315  Galium aparine Mark Stopher 1980-6-4 84 Humboldt Along Elk River near Rte 101 bridge. 1 Comment
  HSC102052  Galium aparine M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 957 Humboldt Forest edge surrounding Patterson Meadows 1566 Comment
  HSC89756  Galium aparine M. Roantree 1985-5-30 74 Humboldt E side of Trinidad Head along dirt road Comment
  HSC99827  Galium aparine Jimerson, Pageau 1979-6-13 541 Humboldt Near Slate Creek Butte, close to the town of Orleans 549 Comment
  HSC19850  Galium aparine J. W. Johnson 1962-4-18 1262 Humboldt Between the Mad River mouth and the Hunt Farm, Samoa Peninsula Comment
  JEPS25689  Galium aparine P. C. Hutchison 1961-5-22 2011 Humboldt on road to Horse Mt. 1.1 mi s Berry Summit ((<Berry Summit> is at 2871 ft alt. on hiway US 299), nw-facing exposure) 914 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
  HSC74746  Galium bolanderi Gail Newton 1981-8-7 2430 Humboldt Near Bug Creek Butte 1244 Comment
  PASA46  Galium bolanderi Frank W. Peirson 1932-7-7 Humboldt Willow Creek Comment
  JEPS52864  Galium californicum subsp. californicum Lauramay T. Dempster and Jean Colton 1963-8-7 3889 Humboldt Redwood Hwy (101) just n Richardson Grove Comment
  JEPS6482  Galium divaricatum Joseph P. Tracy 1916-6-19 4730 Humboldt Alder Point Northern Coast Ranges 152 Comment
  HSC39597  Galium grayanum var. grayanum Thomas W. Nelson, Jane P. Nelson 1976-7-1 2917 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  UC169003  Galium mexicanum var. asperulum Joseph P. Tracy 1908-6 2861 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  SEINET12514834  Galium nuttallii B. D. Rogers, W. J. Ferlatte 1966-6-15 2092 Humboldt Near Bridge ville. Comment
  SEINET7722393  Galium nuttallii Chesnut, Drew Humboldt S. Fork Mt. Comment
  UC198664  Galium parisiense Joseph P. Tracy 1916-6-19 4710 Humboldt Bosworth's Northern Coast Ranges, Laribee Creek 457 Comment
  HSC61873  Galium parisiense Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan. Comment
  HSC19817  Galium porrigens var. porrigens B. D. Rogers, William J. Ferlatte 1966-6-15 2092 Humboldt Near Bridgeville Comment
  JEPS6617  Galium porrigens var. porrigens Joseph P. Tracy 1926-4-11 7406 A & B Humboldt Bridgeville 198 Comment
  JEPS52975  Galium porrigens var. porrigens Lauramay T. Dempster and Jean Colton 1963-8-7 3887 Humboldt 0.8 mi w Briceland (on road to Shelter Cove) Comment
  HSC58008  Galium triflorum G. L. Clifton 1979-7-31 11804 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC76233  Galium triflorum Teresa Prendusi 1981-7-9 166 Humboldt Near Cedar Camp. 1268 Comment
  OBI33244  Galium triflorum David J. Keil 1983-7-1 17258 Humboldt Along Bull Crk Flats Rd 1.4 mi W of US 101. Humboldt Redwoods State Park Comment
  UC1199343  Gamochaeta ustulata Joseph P. Tracy 1935-5-25 13835 Humboldt Fort Seward 106 Comment
  UC302183  Gamochaeta ustulata Joseph P. Tracy 1926-5-2 7434 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC76358  Garrya buxifolia Denis Kearns 1981-6-24 22 Humboldt Near Cedar Camp 1219 Comment
  CAS-BOT-BC188533  Garrya elliptica Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  CAS-BOT-BC182173  Garrya fremontii Joseph P. Tracy 1939-9-10 16499 Humboldt Trinity River Valley at Willow Creek 152 Comment
  POM290957  Gastridium phleoides Lyman Benson 1929-7-16 1648 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  UC1714442  Gastridium ventricosum Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5684 Humboldt Hoopa Mt. Comment
  JEPS79891  Gaultheria ovatifolia Joseph P. Tracy 1939-7-9 16320 Humboldt Bald Mountain, at Lake Prairie Bald Mountain; , Lake Prairie 1066 Comment
  HSC22525  Gaultheria shallon Wm. F. Bowman 1968-10-26 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  HSC7811  Gaultheria shallon J. Pursell 1964-10-18 10182 Humboldt Hwy. 299, 15 mi. N of Blue Lake Comment
  HSC7815  Gaultheria shallon Francis Winter 1960-4-23 Humboldt Samoa peninsula 6 mi. W of Arcata Comment
  HSC89510  Gaultheria shallon M. Roantree 1985-4-25 3 Humboldt E side of Trinidad Head. Comment
  POM285360  Gaultheria shallon Lyman Benson 1928-7-10 583 Humboldt Clam Beach, Trinidad. 8 Comment
  RSA467226  Gaultheria shallon B. C. Templeton 1964-6-13 10086 Humboldt Lighhouse Point, Trinidad Head. Comment
  SD51255  Gaultheria shallon Darley F. Howe 1961-8-1 3106 Humboldt 6.0 miles north of Trinidad on Highway 101. Comment
  UC1120968  Gaultheria shallon A. E. Wieslander 1931-5-21 211 Humboldt on ridge near Kneeland Comment
  UC484078  Gaultheria shallon Carl B. Wolf 1930-10-30 Humboldt 4 mi s of Thorn (Old Coast Road); Old Coast Road 304 Comment
  SEINET11996979  Gaultheria shallon F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 293 a Humboldt 2.4 mi W of US 101 on CA 169 from Klamath to Klamath Glen along Klamath River 50 Comment
  UC495730  Genista Joseph P. Tracy 1927-7-24 8301 Humboldt Mattole Valley; Northern Coast Ranges, Mattole Valley 152 Comment
  HSC22015  Gentiana sceptrum Thomas W. Nelson 1970-10-17 237 Humboldt Big Lagoon Comment
  UC162717  Gentiana sceptrum Joseph P. Tracy 1911-8-27 3535 Humboldt Eureka Northern Coast Region 0 Comment
  POM247167  Gentiana sceptrum Joseph P. Tracy 1927-8-22 8338 Humboldt Bald Mountain, near High Prairie. 1067 Comment
  UC1197399  Geranium carolinianum Joseph P. Tracy 1912-7-4 3723 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC2218  Geranium dissectum H. E. Parks, S. T. Parks Apr 1938 24118 Humboldt Spruce Cove, Trinidad 61 Comment
  HSC23745  Geranium dissectum Tim Baroni 1971-7-6 126 Humboldt Bayside, 1/2 mi. from intersection of Old Arcata Rd. and Jacoby Creek Rd. on Jacoby Creek Rd. Comment
  HSC69586  Geranium dissectum R. Kalal 1980-7-20 89 Humboldt 0.1 mi. N of RR tracks along road to Arcata Marsh Project/Boat Launching Basin at foot of I St., Arcata 1 Comment
  HSC100487  Geranium incisum Carl C. Marshall Jun 1885 106 Humboldt Hills. Comment
  JEPS69517  Gilia capitata subsp. capitata Lincoln Constance 1934-5-23 621 Humboldt sw slope upper end Look Prairie (South Fork Eel River, Bull Creek Region); Bull Creek Region, South Fork Eel River, Look Prairie 365 Comment
  HSC104424  Gilia capitata subsp. pacifica Greg O'Connell 2013-6-27 Humboldt Summit of Mt. Andy 1159 Comment
  HSC100593  Gilia inconspicua Carl C. Marshall 1885-5-11 36 Humboldt Peninsula near Fairhaven. Comment
  BLMAR597  Gilia millefoliata Jennifer Wheeler 2010-5-11 597 Humboldt Samoa Peninsula, Samoa Dunes Engangered Plant Protection Area 3 Comment
  CAS-BOT-BC225475  Gilia millefoliata Lewis S. Rose 1972-6-5 72004 Humboldt Samoa 3 Comment
  HSC16986  Gilia tricolor J. E. Lankila 1962-5-6 26 Humboldt W bank of Eel River across from Shively, .25 mi. from Bear Creek Comment
  UC1197904  Gilia tricolor subsp. tricolor Joseph P. Tracy 1932-5-1 9857 Humboldt Redway 182 Comment
  UC177194  Githopsis specularioides Joseph P. Tracy 1913-6-19 4207 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC21499  Glehnia littoralis subsp. leiocarpa R. E. Hafenfeld 1965-5-9 56 Humboldt Junction of County Rd. and Gold Bluff Beach Rd. Comment
  SJSU8439  Glehnia littoralis subsp. leiocarpa H. T. Harvey 1977-7-5 606 Humboldt Elk R Spit, Humboldt Bay Comment
  UC1197366  Glehnia littoralis subsp. leiocarpa Hattie F. Tracy 1902-6-17 1748 Humboldt sand hills of Ocean Beach at Samoa opposite Eureka Comment
  UC642312  Glehnia littoralis subsp. leiocarpa Joseph P. Tracy 1933-8-25 12994 Humboldt s. of mouth of Eel R. (Centerville Beach); Centerville Beach 6 Comment
  HSC10066  Glyceria elata T. O. Preston 1963-5-12 50 Humboldt Essex pond Comment
  HSC93934  Glyceria fluitans Gordon Leppig, Sylvia Leppig 1999-4-24 1125 Humboldt Arcata, Alder Grove Pond. 18 Comment
  UC1103750  Glyceria striata Joseph P. Tracy 1934-7-18 13430 Humboldt Grouse Mountain; North Coast Ranges 1524 Comment
  HSC5713  Gnaphalium palustre H. E. Parks, S. T. Parks Aug 1937 24080 Humboldt Trinidad; Spruce Cove Comment
  UCD132406  Gnaphalium palustre Linda M. Barker 1976-7-5 1639 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  CAS-BOT-BC302534  Gnaphalium palustre Doris K. Kildale 1925-6-30 846 Humboldt Buhne's [Buhne] Point Comment
  SEINET10726165  Gnaphalium palustre Harold E. Parks, Susan T. Parks Parks 24080 Humboldt Abundant in newly cultivated areas; Spruce Cove, Trinidad. Comment
  SD88350  Gnaphalium purpureum Darley F. Howe 1972-6-30 Humboldt Trinidad Comment
  POM174074  Gnaphalium sphaericum Joseph P. Tracy 1918-9-1 5097 Humboldt Newells Camp, around Humboldt Bay. On old Kneeland Prairie Road. 457 Comment
  HSC28140  Goodyera oblongifolia J. D. Ackerman 1973-8-23 117 Humboldt 2 mi. N of Manila Comment
  CAS-BOT-BC304762  Grindelia hirsutula Carl B. Wolf 1937-9-9 9305 Humboldt Coast, 2 mi. So. of Cape Mendocino 6 Comment
  HSC39110  Grindelia hirsutula Gary S. Lester 1974-8-24 528 Humboldt Arcata salt marsh on Humboldt Bay at the 'G' St. oxidation plant 1 Comment
  JEPS93179  Grindelia hirsutula Margriet Wetherwax and Kevin Downing 1993-8-9 2458 Humboldt Eureka Slough Humboldt Bay (s side, near Bayside Rd. and Myrtle Marsh, at end of road to church, on e side of bay, just n of Eureka) 5 Comment
  UC722051  Grindelia hirsutula C. L. Hitchcock and J. S. Martin 1939-7-14 5437 Humboldt bluffs facing sea at Shelter Cove Comment
  BLMAR676  Grindelia stricta Jennifer Wheeler 2013-6-7 676 Humboldt Humboldt County, Seven mile beach, along Mattole road 6 Comment
  HSC103971  Grindelia stricta var. stricta C. Reynolds 2015-4-12 31 Humboldt Along Freshwater Beach, north of the Kuchel Visitor Center 1 Comment
  HSC56456  Hackelia bella Griswold, Butler 1979-7-12 7233 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC206137  Hackelia bella Joseph P. Tracy 1913-6-17 4174 Humboldt near the summit Buck Mountain; Northern Coast Ranges 1676 Comment
  HSC76193  Hackelia californica Overton, Butler 1979-7-24 9786 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC48770  Hackelia micrantha Brad Klipfel 1973-6-10 50 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC57431  Hackelia micrantha G. L. Clifton, Griswold 1979-7-26 10209 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  CAS-BOT-BC508213  Hastingsia alba Joseph P. Tracy 1926-6-20 7633 Humboldt Wet or seepy ground, serpentine formation, Horse Mountain 1463 Comment
  POM169139  Hastingsia alba Jos Burtt Davy 5855 Humboldt Near Trinity Summit [Humboldt-Trinity County line] Comment
  JEPS35024  Helenium bigelovii Joseph P. Tracy 1937-8-12 15657 Humboldt Snow Camp 1402 Comment
  RSA18613  Helenium bolanderi C. B. Wolf 1937-8-10 9089 Humboldt Big Lagoon, bog at state park. 6 Comment
  UC175963  Helenium bolanderi Joseph P. Tracy 1912-7-24 3808 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  UC630520  Helenium bolanderi H. E. and S. T. Parks 1937-6-1 5937 Humboldt Spruce Cove Trinidad, Spruce Cove 60 Comment
  HSC25943  Helenium puberulum Thomas W. Nelson 1970-10-31 293 Humboldt Eel River near N end of the Scotia Bluff. Comment
  UC204746  Helminthotheca echioides Joseph P. Tracy 1918-7-1 4969 Humboldt southwestern slopes fronting the ocean three mi s of point Cape Mendocino; Northern Coast Ranges, Cape Mendocino 3 Comment
  CDA30696  Hemizonia congesta M. K. Beyers, I. Shepardson 2009-9-13 248 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
  CAS-BOT-BC309981  Hemizonia congesta subsp. tracyi A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie Comment
  POM193009  Hemizonia tracyi H. E. Parks 1930-5-25 0880 Humboldt Near Bridgeville. Comment
  UC1197368  Heracleum lanatum Joseph P. Tracy 1948-9-12 18217 Humboldt meadow at Box Camp Trinity Summit; , Box Camp 1463 Comment
  HSC44596  Heracleum maximum Brad Klipfel 1973-7-15 192 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1212225  Hesperolinon adenophyllum Joseph P. Tracy 1946-8-25 17646 Humboldt Alton to Fortuna (on gravel bars); Eel River 15 Comment
  JEPS11797  Heterocodon rariflorum Lincoln Constance 1934-6-19 915 Humboldt near Grasshopper Peak summit; South Fork Eel River, Bull Creek Region 914 Comment
  UC169328  Heterocodon rariflorum Joseph P. Tracy 1908-6 2831 Humboldt nw slope Buck Mountain; Northern Coast Ranges 1219 Comment
  CAS-BOT-BC143653  Heteromeles arbutifolia Doris K. Kildale 1925-11-15 1344 Humboldt Garberville, South Fork of Eel River Comment
  UC195431  Heteromeles arbutifolia Joseph P. Tracy 1915-8-2 4664 Humboldt 3 mi above Carlotta (Yager Creek); Northern Coast Ranges, Yager Creek 91 Comment
  SEINET5782099 Image available Heterotheca oregona S. K. Harris 1938-8-24 Humboldt Eel River, near Fernbridge Comment
  HSC5311  Heterotheca oregona Paul Shields Aug 1955 Humboldt 1 mi. N of Weott Comment
  UC620692  Heterotheca oregona var. rudis S. K. Harris 1938-8-24 881 Humboldt near Fernbridge (sand of Eel River); Eel River Comment
  CAS-BOT-BC312393  Hieracium albiflorum Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC67880  Hieracium albiflorum J. P. Smith 1973-5-26 6874 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC419046  Hieracium albiflorum H. E. Parks, J. P. Tracy 1930-9-15 768 Humboldt near Kneeland; Bald Hills Comment
  JEPS70574  Hierochloe occidentalis Milo S. Baker 1923-7-20 60 Humboldt Redwood House Road Comment
  JEPS72935  Hierochloe occidentalis Lincoln Constance 1934-5-31 749 Humboldt along n side Bull Cr. (from w boundary of Park to Grasshopper Pk.(Squaw Cr.) rd,); South Fork Eel River, Bull Cr. flat Comment
  UCD150387  Hippuris vulgaris William Anderson 1965-6-26 s.n. Humboldt Mad River Slough. Comment
  HSC61726  Hirschfeldia incana Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan. Comment
  UCD115146  Hirschfeldia incana Joseph P. Tracy 1931-5-21 9434 Humboldt Eel River, Alton to Fortuna. 15 Comment
  SACT001293  Holcus lanatus Lyle Bibb 1963-5-11 Humboldt Comment
  BLMAR150  Holodiscus discolor Donald Hazlett 1994-6-7 150 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC79463  Holodiscus discolor Kenneth Clark 1980-6-14 663 Humboldt Along access trail to Dead Man's Gulch. 107 Comment
  POM148443  Holodiscus discolor J. B. Feudge 1923-7-16 279 Humboldt Fortuna. 23 Comment
  UC1043493  Holodiscus discolor E. K. Balls 1954-5-25 19387 Humboldt 6.3 mi s of Ferndale (North Coast Range, Wild Cat Ridge); North Coast Range, Wild Cat Ridge Comment
  UC1198702  Holodiscus discolor J. P. Tracy 1901-6-16 1150 Humboldt immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC149898  Holodiscus discolor J. H. Thomas 1949-6-14 925 Humboldt Klamath River Valley between Weitchpec and Hoopa Comment
  UCSB24337  Holodiscus discolor var. discolor Tracy, Joseph 1936-8-7 Humboldt Trinity summit, 2 miles southeast of Devil's Hole Comment
  HSC98175  Hordeum marinum subsp. gussoneanum L. M. Malloy 1965-5-14 42 Humboldt N of Liscom's Slough 1/4 mi. on Foster Ave. Comment
  RSA123425  Hordeum marinum subsp. gussoneanum H. S. Yates 1936-6-17 5710 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  UC1103739  Hordeum marinum subsp. gussoneanum Joseph P. Tracy 1939-4-29 16262 Humboldt Orleans 121 Comment
  HSC37932  Hordeum murinum subsp. leporinum Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  UC902137  Horkelia californica Joseph P. Tracy 1942-9-20 17323 Humboldt 2 mi s town (along edges of foothills); Field's Landing 6 Comment
  JEPS44551  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1925-5-30 7025 Humboldt Laribee Valley; Northern Coast Ranges 701 Comment
  UC303162  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1925-5-30 7025 Humboldt Laribee Valley; Northern Coast Ranges 701 Comment
  UC902134  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1947-7-5 17792 Humboldt Mud Springs Trinity Summit 1341 Comment
  HSC100883  Hosackia gracilis Carl C. Marshall Apr 1885 113 Humboldt Coast region everywhere. Comment
  SEINET958139  Hosackia pinnata J. P. Tracy 1937-1 15375 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  SD53242  Hosackia stipularis Darley F. Howe 1962-5-22 Humboldt 4.3 miles east of Orick on Bald Mountain Road 609 Comment
  HSC57864  Hydrophyllum fendleri var. albifrons G. L. Clifton 1979-7-31 11389 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 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
  HSC58018  Hypericum anagalloides G. L. Clifton 1979-7-31 11820 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC502936  Hypericum anagalloides Joseph P. Tracy 1932-7-16 10607 Humboldt Corral Prairie Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  UC668261  Hypericum anagalloides Joseph P. Tracy 1933-8-6 12945 Humboldt French Camp Ridge 1066 Comment
  HSC98128  Hypericum anagalloides Cara Witte 2007-6-28 380 Humboldt FS Road 5N10. Approximately 0.5 mi E of intersection with National Forest 1. 1426 Comment
  CAS-BOT-BC411326  Hypericum calycinum Robert F. Thorne; P. Everett 1965-8-9 35315 Humboldt Clam Beach County Park 3 Comment
  UC1198404  Hypericum formosum var. scouleri Joseph P. Tracy 1920-7-25 5345 Humboldt Dows Prairie Northern Coast Ranges, Humboldt Bay, Dows Prairie 60 Comment
  HSC56972  Hypericum perforatum Overton, Butler 1979-7-23 9501 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  UC1137469  Hypericum perforatum Hubert Person 1941-5-24 25323 Humboldt just n. Garberville; Briceland Quad., CA Forest & Range Expt. Station 152 Comment
Read comments Sep 12 2009
  CAS-BOT-BC401235  Hypericum perforatum Joseph P. Tracy 1933-7-21 12820 Humboldt Valley of South Yager Creek 762 Comment
  CAS-BOT-BC401238  Hypericum perforatum Henry M. Pollard 1948-7-21 s.n. Humboldt Near Orleans Comment
  HSC24388  Hypericum perforatum J. O. Sawyer 1970-6-24 2240 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  UC169053  Hypochaeris glabra Joseph P. Tracy 1912-7-25 3812 Humboldt Kneeland Prairie 762 Comment
  CHSC2200  Iris douglasiana E. Crouch 1929-5-8 Humboldt Comment
  HSC89546  Iris douglasiana M. Roantree 1985-5-24 63 Humboldt E side of Trinidad Head Comment
  JEPS17218  Iris douglasiana Milo S. Baker 1923-7-31 157 a Humboldt Lawrence Creek; central Humboldt County Comment
  JEPS17244  Iris douglasiana W. L. Jepson 1927-7-3 12360 a Humboldt Meyers Station Comment
  RSA135857  Iris douglasiana Lee W. Lenz, E. K. Balls 1951-5-8 16509 Humboldt Just south of Scotia (to 4.2 miles south) along Highway 101 Comment
  HSC36790  Iris purdyi Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-7-20 2052 Humboldt Beside FS Rd. 2S08 to Pine Mtn. Comment
  UC146222  Iris purdyi Joseph P. Tracy 1908-6-27 2684 Humboldt head of Little Laribee Creek; Northern Coast Ranges 914 Comment
  HSC65229  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-5-1 444 Humboldt 3.6 mi. N of Orleans on FS Rd. 15N01 Comment
  RSA135922  Iris tenuissima Lee W. Lenz 1953-5-17 18319 Humboldt 1 mile west of Willow Creek, Highway 299 Comment
  HSC95675  Iris tenuissima subsp. tenuissima Steven Lee 2004-4-25 26 Humboldt Along river access trail off County Rd. 341 Comment
  UC503070  Isoetes howellii Joseph P. Tracy 1930-6-15 8746 Humboldt Larrabee Creek near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  HSC97440  Isolepis cernua Ivy Watson 2008-10-11 53 Humboldt N of river mouth, along small tributary E of sand dunes 4 Comment
  CAS-BOT-BC340228  Jaumea carnosa Marcus E. Jones 1931-7-16 2911 Humboldt Arcata Comment
  HSC90255  Jaumea carnosa Jean Hanson 1980-6-22 84 Humboldt Indian ( Gunther) Island. In Humboldt Bay, city of Eureka. W end of island. Ca. 15 ft. from high tide line Comment
  JEPS93182  Jaumea carnosa Margriet Wetherwax and Kevin Downing 1993-8-9 2463 Humboldt n Eureka (along n side of slough, Jacobs St. turn-off of 101N just beyond bridge over slough, between 2 Peterbilt warehouses); Eureka Slough 5 Comment
  HSC38832  Juncus bolanderi R. Sutherland 1976-8-13 813876 Humboldt Whittemaore Grove at edge of forest 213 Comment
  RSA54121  Juncus bolanderi Henry M. Pollard 1945-8-25 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon. Comment
  UC183674  Juncus bolanderi Joseph P. Tracy 1908-7-22 2907 Humboldt between Van Duzen and Mad Rivers (on Dinsmore's Ranch); Northern Coast Region 1066 Comment
  CHSC2217  Juncus breweri M. Anthony 1960-5-14 Humboldt Near Arcata. Comment
  HSC91873  Juncus bufonius E. Mackey 1987-7-19 Humboldt Patrick's Point State Park Comment
  RSA298326  Juncus bufonius J. P. Smith, Advanced Plant Taxonomy Plant 1971-10-9 5009 Humboldt Mad River above the Fish Hatchery. Comment
  HSC67957  Juncus confusus Steve Selva, J. P. Smith 1970-6-30 4110 Humboldt Comment
  HSC14012  Juncus effusus subsp. pacificus W. R. Brigham 1962-5-19 24 Humboldt S of Big Lagoon. Comment
  BLMAR312  Juncus ensifolius Jennifer Anthony-Wheeler July, 2002 312 Humboldt South Spit, near trail to salt marsh 6 Comment
  CHSC102933  Juncus laccatus Peter F. Zika 2007-7-30 23330 Humboldt North Coast, NCo. Above E side of Route 101, at high point between Stone and Big Lagoons. 80 Comment
  HSC38189  Juncus lescurii Peter Sorensen 1976-7-14 Humboldt N spit Comment
  UC421840  Juncus mertensianus Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5787 Humboldt Trinity Summit North Coast Ranges Comment
  HSC50573  Juncus orthophyllus G. L. Clifton, Griswold 1979-7-31 11680 Humboldt Near the Trinity Summit Guard Station, close to the town of Hoopa. 1804 Comment
  HSC57634  Juncus parryi G. L. Clifton, Griswold 1979-7-25 10791 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  RSA298328  Juncus patens J. P. Smith, Advanced Plant Taxonomy Class 1971-10-9 5034 Humboldt Mad River above the Fish Hatchery. Comment
  SEINET11789825  Juncus tenuis J. P. Tracy 1937-1 15609 Humboldt near Blue Lake, along Mad River 15 Comment
  RSA42044  Juncus xiphioides H. C. Cantelow 1936-8-28 1641 Humboldt 4 miles W of Dinsmore Ranch. Comment
  HSC82411  Kalmia polifolia Thomas W. Nelson 1979-7-11 5018 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  CAS-BOT-BC235887  Keckiella corymbosa Carl B. Wolf 1927-8-30 1237 Humboldt 2 mi. so. of Petrolia on Matole [Mattole] River near where road crosses river Comment
  NY790278  Keckiella corymbosa J. P. Tracy 1912-7-26 3847 Humboldt Kneeland Prairie Comment
  CAS-BOT-BC237833  Keckiella lemmonii Joseph P. Tracy 1929-8-4 8648 Humboldt Ridge between Bull Creek and Mattole River 762 Comment
  UC885732  Kickxia elatine Carl D. Duncan 1920-9-22 Humboldt Hoopa Valley Comment
  UC50452  Koeleria macrantha Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6189 Humboldt Bear River Ridge Comment
  UCD85995  Koeleria macrantha Joseph P. Tracy 1936-8-2 15071 Humboldt French Camp Ridge. 1066 Comment
  CAS-BOT-BC502602  Kopsiopsis strobilacea Doris Kildale Gillespie 1931-6-7 10663 Humboldt South Fork Mt. Blake Lookout 1726 Comment
  RSA0084173  Kopsiopsis strobilacea D. E. Anderson 1965-6-1 3773 Humboldt Along Friday Hill Road, about 2 miles northeast of its junction with Titlow Hill Road. 1158 Comment
  UC581803  Lagophylla ramosissima Joseph P. Tracy 1934-7-9 13354 Humboldt Dobbyn Creek 152 Comment
  HSC14214  Lamium purpureum S. J. Roberts 1965-4-10 26 Humboldt Dike of old Mad River channel Comment
  RSA167198  Lasthenia californica Joseph P. Tracy 1942-5-16 17357 Humboldt Near Garberville, on road to Harris, ! mile NE of town. 305 Comment
  POM161459  Lasthenia glaberrima Joseph P. Tracy 1916-6-19 4720 Humboldt Dobbyn Creek Comment
  SEINET3860275  Lathyrus biflorus Thomas W. Nelson, Jim Nelson 1980-6-10 5432 Humboldt Blocksburg Quadrangle.; 0 1372 Comment
  UC1368671  Lathyrus glandulosus J. P. Tracy 1948-8-7 18085 Humboldt Fickle Hill 609 Comment
  UC169304  Lathyrus glandulosus Joseph P. Tracy 1912-7-26 3855 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1222416  Lathyrus jepsonii var. californicus Joseph P. Tracy 1942-7-1 17361 Humboldt opposite Buck Mountain; Van Duzen River 762 Comment
  BLMAR719  Lathyrus littoralis Jennifer Wheeler 2011-5-20 719 Humboldt King range, Mattole Beach Sand Dunes 3 Comment
  UCSB15805  Lathyrus littoralis Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  JEPS64859  Lathyrus nevadensis var. nevadensis Harley P. Chandler Jun 1901 1290 Humboldt Hupa Indian Reservation North Coast Ranges 1097 Comment
  JEPS79917  Lathyrus polymorphus Joseph P. Tracy 1932-7-20 10735 Humboldt just w of Corral Prairie (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1524 Comment
  HSC97914  Lathyrus polyphyllus Cara Witte 2007-6-14 279 Humboldt Along National Forest 1. Near Kinsey Ridge. 3/4 mile south of intersection with 4N06. 1256 Comment
  RSA168909  Lathyrus polyphyllus Joseph P. Tracy 1951-6-16 19469 Humboldt Happy Camp Mountain. In Trinity Summit Range, 6 miles northeast of Hawkins Bar. On the Takilma-Happy Camp Road. 1280 Comment
  HSC14736  Lathyrus tingitanus N. D. Dennis 1965-5-10 63 Humboldt 2nd and T St., Eureka Comment
  JEPS55299  Lathyrus torreyi W. L. Jepson 1902-6-25 1937 Humboldt near Acorn P.O. Comment
  UC169300  Lathyrus vestitus var. vestitus Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3610 Humboldt near Hydesville; Northern Coast Region 30 Comment
  CAS-BOT-BC325930  Layia carnosa Joseph P. Tracy 1917-5-30 4796 Humboldt Sand dunes at mouth of Little River. 6 Comment
  CAS-BOT-BC325996  Layia carnosa Frank W. Peirson 1923-7-11 3905 Humboldt 18 miles N of Eureka. Comment
  HSC104093  Layia carnosa Kyle Brown Apr 2015 33 Humboldt Ma-le'l Dunes; ~.25 mi. NW of parking lot 3 Comment
  HSC34455  Layia carnosa J. P. Smith, J. O. Sawyer 1975-5-11 8078 Humboldt Samoa Peninsula, just N of Coast Guard Station boundary. Comment
  UC198626  Layia carnosa Joseph P. Tracy 1917-5-30 4796 Humboldt mouth Little River Comment
  BLMAR61  Layia carnosa Jennifer Anthony-Wheeler 1994-3-31 61 Humboldt King range, Matole beach South of campground 12 Comment
  JEPS40021  Layia gaillardioides W. L. Jepson 1902-8-3 2140 Humboldt Bear River Range to Petrolia Comment
  CHSC33097  Leontodon saxatilis subsp. saxatilis J. P. Smith 1971-10-6 4966 Humboldt Dunes at the end of Murray Road in McKinleyville. Comment
  UCD115824  Lepidium nitidum Joseph P. Tracy 1948-5-31 17990 Humboldt Harris. 762 Comment
  CAS-BOT-BC12877  Lepidium strictum Joseph P. Tracy 1941-5-4 16866 Humboldt Scotia. 30 Comment
  SEINET7967470 Image available Leptosiphon bicolor Gail Newton 1980-6-28 746 Humboldt Near Mad River Butte 369 Comment
  CAS-BOT-BC226712  Leptosiphon latisectus Mrs. H. C. Cantelow 1939-6-4 4125 Humboldt N.E. of Garberville Comment
  SEINET7881646 Image available Leucanthemum vulgare H. E. Parks, S. T. Parks 1943-1 24257 Humboldt Spruce Cove, Trinidad 60 Comment
  HSC5359  Leucanthemum vulgare D. E. Anderson 1961-9-13 1825 Humboldt Comment
  UC673017  Lewisia pygmaea Joseph P. Tracy 1930-7-17 8979 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  RSA623752  Leymus mollis subsp. mollis T. Gertrude Williamson 1924-7-12 251 Humboldt Between Trinidad and Arcata Comment
  UCD87707  Leymus triticoides A. H. Murphy 1951-6-13 63 Humboldt Eel River at Fort Seward. Comment
  SD51274  Ligusticum apiifolium Darley F. Howe 1961-8-2 3614 Humboldt 24 miles east of Orick on Bald Mountain Road. 915 Comment
  JEPS17505  Ligusticum apiifolium W. L. Jepson 1902-6-30 1959 Humboldt on Hupa Rd. near Redwook Creek Comment
  CAS-BOT-BC451581  Lilaea scilloides Joseph P. Tracy 1933-5-20 12274 Humboldt Cape Ridge - back of Cape Mendocino 304 Comment
  SBBG1025  Lilium columbianum H. and M. Dearing 1939-6-23 3698 Humboldt 5 mi N of Trinidad Comment
  CAS-BOT-BC508406  Lilium columbianum A. M. Vollmer; L. Beane 1953-7-1 121 Humboldt Unspecified Comment
  HSC26820  Lilium columbianum Clifton Raymond Chesbrough 1973-6-19 98 Humboldt 0.5 mi. N of College Cove along coast Comment
  RSA130331  Lilium kelloggii Albert M. Vollmer, L. Beane 1953-07 119 Humboldt Freshwater Comment
  UC1222538  Lilium kelloggii Joseph P. Tracy 1950-6-29 18933 Humboldt 3 mi e Kneeland (on Butler Valley Road) Comment
  CAS-BOT-BC130690  Lilium occidentale David D. Keck 1948-7-1 5978 Humboldt 3 mi. N. Big Lagoon Comment
  CAS-BOT-BC130729  Lilium pardalinum Doris Kildale 1931-5-16 10686 Humboldt Snow Camp Comment
  UC30065  Lilium pardalinum Chesnut and Drew 1888-7-20 Humboldt Pilot Creek Comment
  UCD139748  Lilium pardalinum H. P. Olmo 1931-6-8 s.n. Humboldt 5 miles north of Trinidad on Redwood Highway. Comment
  HSC57160  Lilium pardalinum subsp. pardalinum Overton, Butler 1979-7-26 9959 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  HSC99049  Lilium pardalinum subsp. pardalinum Cara Witte 2008-7-25 932 Humboldt Friday Ridge Road (Forest Service Road 6N08). 1.5 mile north of intersection with Forest Service Road 5N39. 1473 Comment
  HSC98854  Lilium washingtonianum subsp. purpurascens Cara Witte 2008-7-11 872 Humboldt National Forest 1. 1/2 mile south from intersection with Forest Service Road 6N01B. 1575 Comment
  UC1198229  Lilium washingtonianum subsp. purpurascens Joseph P. Tracy 1932-7-19 10726 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  JEPS19585  Limnanthes douglasii Joseph P. Tracy 1933-5-20 12246 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  SEINET7253531 Image available Limonium californicum Joseph P. Tracy 1901-1 1254 Humboldt At Samoa 1 Comment
  UC427875  Linanthus androsaceus H. E. Parks, J. P. Tracy 1930-5-25 794 Humboldt vicinity Bridgeville; Laribee Valley Comment
  UC23540  Linanthus filipes Harley P. Chandler Jun 1901 1309 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC1198538  Linanthus harknessii Harold E. Parks and Joseph P. Tracy 1934-6-27 11086 Humboldt Grouse Mt. 1432 Comment
  UCR52359  Linanthus parviflorus K. Berg, R. Bonning 1983-5-21 479 Humboldt Chezem Road, 2.1 mi. east of Redwood Creek Bridge. 595 Comment
  UC774996  Linnaea borealis var. longiflora Carl B. Wolf 1937-8-13 9265 Humboldt on new road towards Trinity Summit 12 mi e Hoopa Valley; North Coast Range, e of Hoopa Valley 1676 Comment
  CHSC68542  Linum bienne Vernon Oswald 1997-4-29 8353 Humboldt Humboldt Bay NWR, Hookton Slough Trail on the levee along the south side of Hookton Slough. 0 Comment
  HSC39788  Linum bienne Peter Sorensen 1976-6-4 Humboldt N Spit of Humboldt Bay, S of Samoa near airport Comment
  HSC48978  Listera caurina Rudolf W. Becking 1979-7-15 Humboldt Fish Lake Comment
  HSC99449  Listera caurina K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 99 Humboldt Near North Trinity Mtn., 11. 9 mi. E of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest 1372 Comment
  UC1103031  Listera caurina Joseph P. Tracy 1924-7-4 6712 Humboldt Snow Camp 1402 Comment
  HSC98814  Listera caurina Cara Witte 2008-7-7 843 Humboldt National Forest Road 5N10. 2 miles south of intersection with Friday Ridge Road. Near waterhole sign. 1224 Comment
  UC1442907  Listera cordata Theodore F. Niehaus 1970-4-14 914 Humboldt ca. 5 mi w Yager-Bridgeville road (on Redwood House road) Comment
  CHSC20342  Lithocarpus densiflorus D. E. Anderson 1963-9-1 2805 Humboldt Near Kneeland. 731 Comment
  SACT002876  Lithocarpus densiflorus C. White 1962-5-13 Humboldt Redwood forest along HIghway 299, 16 miles east of Arcata, ca. Comment
  POM106448  Lithocarpus densiflorus var. densiflorus Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  RSA697655  Lithocarpus densiflorus var. densiflorus Unspecified 1936-09 s.n. Humboldt Richardson's Grove (State Park). Comment
  CHSC40210  Lithophragma affine L. P. Janeway 1984-5-13 779 Humboldt Along Redwood House Road 1 1/2 mi from the Kneeland/Bridgeville Road. Along South Fork Yager Creek. 762 Comment
  HSC97180  Lithophragma campanulatum Benjamin Hart, Erin Lonergan 2007-6-13 10 Humboldt 1 mi. E of USFS Rd. NF1 on 5N04 1524 Comment
  UC1199426  Logfia gallica Joseph P. Tracy 1934-7-1 13278 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  HSC61764  Logfia gallica Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan; 1 mi. above Pecwan on old road, S side Comment
  CAS-BOT-BC283403  Lolium multiflorum C. L. Hitchcock; C. V. Muhlick 1963-7-14 22906 Humboldt Along Eel River at Fern Bridge Comment
  UCD66068  Lolium multiflorum R. N. Raynor 1935-6-7 Humboldt Fort Seward. Comment
  HSC58408  Lolium perenne Griswold, Butler 1979-7-10 7123 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  HSC102920  Lomatium M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1047 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC1222610  Lomatium californicum Joseph P. Tracy 1950-6-15 18804 Humboldt 7 mmi. n. Harris (chaparral area at Jenk's ranch) Comment
  SEINET200743  Lomatium dasycarpum Joeseph P. Tracy 1923-6-27 6380 Humboldt Trinity River Valley, near the South Fork 183 Comment
  HSC71591  Lomatium dasycarpum subsp. dasycarpum M. A. Baker 1980-6-26 2398 Humboldt Near Sims Creek 610 Comment
  UC314599  Lomatium utriculatum Joseph P. Tracy 1923-7-4 6525 Humboldt Northern Coast Ranges, Valley of S. Yager Creek 762 Comment
  HSC98971  Lomatium vaginatum Cara Witte 2007-6-4 193 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  BLMAR175  Lonicera hispidula Donald Hazlett 1994-6-7 175 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC1239555  Lonicera hispidula var. vacillans Joseph P. Tracy 1915-6-27 4658 Humboldt near Hydesville; Northern Coast Ranges, Yager Creek 60 Comment
  UCD137378  Lonicera involucrata Linda M. Barker 1976-4-30 1400 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC241486  Lonicera involucrata var. ledebourii B. D. Stark 1929-7-24 1387 Humboldt 8 miles south of Eureka 30 Comment
  CAS-BOT-BC241490  Lonicera involucrata var. ledebourii Alice Eastwood 1923-8-14 12306 Humboldt Samoa Comment
  HSC3928  Lonicera involucrata var. ledebourii D. B. Bader 1963-3-1 25 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101 Comment
  HSC83836  Lonicera involucrata var. ledebourii F. R. Fosberg 1948-8-28 30053 Humboldt Dry Lagoon. Comment
  HSC89435  Lonicera involucrata var. ledebourii P. A. Daly 1984-5-13 24 Humboldt Along trail/Rd. at Trinidad Head. 61 Comment
  HSC99573  Lotus crassifolius K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 238 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
  HSC98117  Lotus denticulatus Cara Witte, Michael Scott 2007-6-22 343 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1/5 mile after intersection with 4N38. 1486 Comment
  HSC44376  Lotus humistratus Thomas W. Nelson, Jane P. Nelson 1977-6-19 3512 Humboldt SW of Alder Springs along Rd. 2S08. 1524 Comment
  JEPS55511  Lotus humistratus W. L. Jepson 1902-6-20 1897 Humboldt Ft. Seward Ranch Ridge (= Mail Ridge) Mail Ridge 1219 Comment
  UC1197291  Lotus humistratus Joseph P. Tracy 1911-7-4 3283 Humboldt near Willow Creek (at w side of Trinity River); Northern Coast Ranges, Trinity River 243 Comment
  UCR45449  Lotus micranthus Barry Silver 1986-4-23 524 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  SEINET3694376 Image available Lotus oblongifolius Joseph P. Tracy 1936-6-3 14856 Humboldt Lack Pond; Trinity River Valley, opposite mouth of Willow Creek 152 Comment
  RSA20787  Lotus oblongifolius var. nevadensis Carl B. Wolf 1937-8-13 9252 Humboldt North Coast Range 11 mi. E. of Hoopa Valley on New Road towards Trinity Summit. 1524 Comment
  SEINET12154237  Lotus pinnatus J. P. Tracy 1942-1 17134 Humboldt Englewood Prairie Comment
  HSC43172  Lotus unifoliolatus var. unifoliolatus R. Sutherland 1976-8-13 6 .13876 Humboldt Whittemaore Grove at edge of forest 213 Comment
  RSA168887  Lotus yollabolliensis Joseph P. Tracy 1941-8-28 17048 Humboldt South Fork Mountain; open glades along summit near Blake lookout 1738 Comment
  HSC70698  Luina hypoleuca Gail Newton 1980-7-15 1554 Humboldt Near Sims Mtn. 1311 Comment
  POM51553  Luina hypoleuca Joseph P. Tracy 1917-9-2 4839 Humboldt Grouse Mountain. 1524 Comment
  SD56747  Luina nardosmia Darley F. Howe 1963-5-26 3553 Humboldt 2.8 miles east of Orick on Bal Hill Road. 424 Comment
  UC1223294  Lupinus adsurgens Joseph P. Tracy 1938-6-17 15970 Humboldt Bull Creek-Mattole Road top of ridge near Panther Gap; top of ridge near Panther Gap, Bull Creek-Mattole Road Comment
  UC503012  Lupinus adsurgens Joseph P. Tracy Jul 16 1930-Jul 19 1930 9059 Humboldt near Blake lookout, South Fork Mountain along summit; Northern Coast Ranges, South Fork Mountain 1737 Comment
  UC15888  Lupinus adsurgens Chesnut and Drew 1888-7-21 Humboldt South Fork Mt.; ; S of Fort Mt., Humboldt Co. Comment
  SEINET10490444  Lupinus adsurgens var. adsurgens Chestnut 1888-7-21 CHESTNUT s.n. Humboldt Type photo. W side south fork mountain. Comment
  SEINET10488366  Lupinus albicaulis John O. Sawyer, R. J. Cole 1977-7-3 Sawyer 3016 Humboldt Hoopa quad. T8n,r5e,sec.14. Environs of mud spring. Big hill road. White fir Forest (f.s.8n01) 1524 Comment
  HSC36638  Lupinus albifrons var. flumineus Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-6-14 1904 Humboldt Beside Rd. 2S08 to Pine Mtn. 1555 Comment
  LA205182  Lupinus arboreus C. B. Wolf; 1930-10-28 1780 Humboldt Samoa, Humboldt Bay 15 Comment
  OBI36383  Lupinus arboreus David J. Keil 1983-7-1 17285 Humboldt Ca. 5 mi NW of Petrolia along Mattole Rd Comment
  UCD106638  Lupinus arboreus Logan Farm Adviser 1921-6-21 s.n. Humboldt Eureka. Comment
  BLMAR731  Lupinus bicolor Jennifer Wheeler 2015-4-8 731 Humboldt Lacks Creek, Lower Beaver Ridge Prairie 914 Comment
  HSC14791  Lupinus bicolor J. R. Good 1964-5-13 33 Humboldt N of Coast Guard St., 300 yds., 100 ft. W of Rd. Comment
  NY15833  Lupinus constancei T. W. Nelson 1982-7-9 7079 Humboldt Blocksburg quadrangle. Sepentine barrens on Mt. Lassic (Signal Peak) and saddle to east. 1767.8 Comment
  SEINET10737707 Image available Lupinus constancei Thomas W. Nelson, Jane P. Nelson 1982-7-9 Nelson 7079 Humboldt Blocksburg Quadrangle. T1S, R5E, Sec. 36. Serpentine barrens on Mt. Lassic (Signal Peak) and saddle to east. 1768 Comment
  JEPS109559  Lupinus elmeri Dean Wm. Taylor, Tom Engstrom 2002-7-19 18250 Humboldt South Fork Mountain, Blake Mountain, opening along Forest Road 1 ca. 0.5 mi N of the highest point on the ridge 1737 Comment
  HSC40961  Lupinus littoralis Linda M. Barker 1976-5-13 1495 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  UCD107969  Lupinus littoralis Linda M. Barker 1976-5-13 1495 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC169350  Lupinus luteolus Joseph P. Tracy 1912-7-26 3871 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC184850  Lupinus luteolus Joseph P. Tracy 1911-7-10 3496 Humboldt Valley of Trinity River near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River nr Willow Cre 152 Comment
  BLMAR810  Lupinus nanus Madeleine Hassett 2017-6-8 810 Humboldt Headwaters Forest Reserve, old road clearing in second geowth redwood/fir Comment
  RSA20858  Lupinus polyphyllus var. grandifolius Carl B. Wolf 1937-6-18 8898 Humboldt 1/2 miles E of Alton. 21 Comment
  UC180233  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1914-7-4 4542 Humboldt High Prairie; on Bald Mountain Bald Mountain; Northern Coast Ranges, Bald Mountain 1066 Comment
  SEINET10837864  Lupinus rivularis Donald E. Bright 1962-6-11 Bright 276 Humboldt Growing with hemlock and redwood, 1 mi n of trinidad. Comment
  HSC58361  Lupinus tracyi G. L. Clifton, Griswold 1979-7-26 10194 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  HSC76513  Lupinus tracyi T. Jimerson 1981-8-5 901 Humboldt 1829 Comment
  HSC56946  Luzula comosa Overton, Butler 1979-7-23 9436 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC70778  Luzula comosa R. York 1980-5-17 549 Humboldt Near Le Perron Peak 1066 Comment
  UC2983  Luzula comosa Harley P. Chandler May, 1901 1159 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay Comment
  HSC45018  Luzula comosa R. Sutherland 1978-4-23 13 .23478 Humboldt Telegraph Ridge at head of Green Ridge 707 Comment
  UC1103683  Luzula comosa Joseph P. Tracy 1923-6-24 6354 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  UC1152137  Luzula comosa Joseph P. Tracy 1938-5-8 15738 Humboldt 4 mi e town (vicinity of Carlotta, edge of woods near Cummings Creek); near Cummings Creek, vicinity of Carlotta 30 Comment
  JEPS67158  Luzula macrantha Joseph P. Tracy 1926-5-2 7446 Humboldt Near Ruby Creek, Willow Creek Canyon, Northern Coast Ranges, 609 Comment
  RSA246934  Lycopodiella inundata R. F. Thorne, Percy C. Everett 1965-8-7 35192 Humboldt Big Lagoon, south end. 2 Comment
  CAS-BOT-BC61932  Lycopodium clavatum H. E. Parks; W. K. Parks 1932-7-30 01132 Humboldt Camp 21 Hammon Lumber Company, Trinidad 152 Comment
  HSC23776  Lycopodium clavatum R. A. Vanbianchi 1971-9-24 90 Humboldt Near Fieldbrook. Comment
  HSC43315  Lycopodium clavatum John DeMartini 1977-12-15 Humboldt McKinleyville, along Mill Creek just below forks, along N side of creek. Comment
  SBBG56351  Lycopodium clavatum H. E. and W. K. Parks 1932-7-30 1132 Humboldt Camp 21, Hammond Lumber Co, Trinidad 152 Comment
  UC534971  Lycopodium clavatum H. E. and W. K. Parks 1932-7-30 1132 Humboldt Hammond Lumber Company Camp 21 Trinidad 152 Comment
  POM87675  Lysichiton americanus Le Roy Abrams, Rimo C. Bacigalupi 8277 Humboldt Big Lagoon. South of Orick. Comment
  UCD138085  Lysichiton americanus Malcolm A. Nobs; S. Galen Smith 1949-8-3 1183 Humboldt Southern outskirts of Eureka. Comment
  HSC3242  Lysichiton americanus J. W. Johnson 1962-2-26 1161 Humboldt Along Lanphere Lane, Samoa Peninsula Comment
  JEPS20935  Lysichiton americanus W. L. Jepson 1902-6 1925 Humboldt Eureka to Arcata; Hupa Indian Reservation Comment
  JEPS45986  Lythrum hyssopifolia Lincoln Constance 1934-5-27 693 Humboldt Bull Creek Region, South Fork Eel River, s end of Dyerville Bridge South Fork Eel River; Bull Creek Region, , Dyerville Bridge 45 Comment
  UC668292  Lythrum hyssopifolia Joseph P. Tracy 1938-7-5 16011 Humboldt Carlotta, by old Strong's District School House, 5 mi e of town Carlotta 45 Comment
  HSC43203  Lythrum hyssopifolia R. Sutherland 1976-8-13 17 .13876 Humboldt Gravel bar in Redwood Creek in Redwood grove. 87 Comment
  HSC97613  Madia elegans Cara Witte 2007-6-4 180 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  SEINET11810577  Madia elegans J. P. Tracy 1947-1 17827 Humboldt Horse Mountain 1067 Comment
  UC673205  Madia elegans Lincoln Constance and Reed C. Rollins 1942-5-11 2874 Humboldt 5 mi s Hoopa; North Coast Ranges, Hoopa Valley 121 Comment
  SD88396  Madia elegans subsp. vernalis Darley F. Howe 1972-5-6 Humboldt 1.5 miles north of Phillipsville Comment
  UC204700  Madia exigua Joseph P. Tracy 1918-7-5 5006 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  UC166085  Madia exigua Joseph P. Tracy 1911-7-5 3303 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 182 Comment
  CAS-BOT-BC343016  Madia gracilis Joseph P. Tracy 1937-7-29 15596 Humboldt South Fork Mountain. West slope near top, at Hyampom Trail 1676 Comment
  HSC58706  Madia gracilis Griswold, Butler 1979-7-10 7133 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  JEPS40364  Madia gracilis Lincoln Constance 1934-5-29 728 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  UC176473  Madia gracilis Joseph P. Tracy 1913-6-22 4257 Humboldt opposite Buck Mountain (in Van Duzen River Valley, Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  POM232321  Madia gracilis subsp. gracilis I. L. Wiggins 1930-7-11 4679 Humboldt Near Samoa Comment
  UC545825  Maianthemum dilatatum H. E. Parks May, 1932 4289 Humboldt Trinidad, Bishop Pine Lodge Comment
  CAS-BOT-BC508517  Maianthemum dilatatum A. A. Heller 1937-6-8 15899 Humboldt Bishop Pine Lodge, 3 miles north of Trinidad Comment
  HSC70565  Maianthemum racemosum subsp. amplexicaule M. A. Baker 1980-7-23 3186 Humboldt Near Orleans Mtn. 1859 Comment
  RSA1087  Maianthemum racemosum subsp. amplexicaule E. R. Johnson 1928-8-26 1147 Humboldt Arcata. Comment
  SEINET12050378  Maianthemum racemosum subsp. amplexicaule F. H. Utech 1988-1 88 -270 Humboldt 14 mi W of Bridgeville to Carlotta on CA 36, Mile Marker 11.40, Van Duzen Co. Park (Pamplin Grove) 50 Comment
  HSC98154  Maianthemum stellatum Jack Rockwell 1962-4-29 38 Humboldt E bank of Redwood Creek, near Hwy. 299 549 Comment
  UC34160  Malacothrix floccifera Hy-Am Pum 1888-7-23 Humboldt Comment
  RSA178549  Malus sylvestris Joseph P. Tracy 1950-4-23 18636 Humboldt Trinity River Valley, at Willow Creek. Comment
  CHSC46890  Marah oregana R. A. Schlising 1963-6-4 2584 Humboldt South of Orick, along Hwy 101 at Big Lagoon. Comment
  HSC47495  Marah oregana Sheila Logan 1978-4-9 19 Humboldt Fieldbrook, 0.5 mi. E of McKinleyville on Murray Rd. 122 Comment
  HSC59054  Marah oregana Thomas Wood 1979-4-20 121 Humboldt Along frontage Rd., parallel and E of Hwy. 101 at Patrick Creek Drive intersection, S of Patrick Creek. 6 Comment
  HSC89517  Marah oregana M. Roantree 1985-6-11 91 Humboldt E side of Trinidad Head Comment
  UC162809  Medicago polymorpha J. P. Tracy 1909-8-15 3076 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC14976  Medicago polymorpha D. E. Anderson 1961-9-9 1794 Humboldt Big Lagoon County Park Comment
  RSA249711  Medicago polymorpha Robert F. Thorne 35258 Humboldt N edge of Eureka, E of Hwy. 101. 5 Comment
  RSA152364  Melica californica Joseph P. Tracy 1938-6-9 15886 Humboldt Mail Ridge, northwest of Harris 2 miles. 915 Comment
  UC552700  Melica californica Joseph P. Tracy 1935-5-25 13888 Humboldt Dobbyn Creek; Northern Coast Ranges 152 Comment
  HSC102229  Melica geyeri var. geyeri M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1150 Humboldt Patterson Meadows 1566 Comment
  CAS-BOT-BC281319  Melica harfordii David D. Keck 1948-7-2 6012 Humboldt 1 mile N of Richardson Grove, US Highway 101 highway, along S Fork of Eel River, S facing road cut and ditch 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
  CAS-BOT-BC281324  Melica harfordii Doris K. Kildale 1928-6-24 5287 Humboldt Horse Mountain 914 Comment
  UCD87544  Melica harfordii A. H. Shunk 1923-7-12 s.n. Humboldt Briceland. Comment
  UC187219  Melica subulata Joseph P. Tracy 1911-6-4 3227 Humboldt along Litte River, 5 mi from coast Little River, North Coast 121 Comment
  UC552707  Melica subulata Joseph P. Tracy 1935-4-14 13778 Humboldt Miranda; along South Fork of Eel River 121 Comment
  POM66219  Melilotus albus Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  HSC26919  Melilotus albus Brad Klipfel 1973-7-30 218 Humboldt Samoa Rd., near Mad River Slough Comment
  HSC79364  Melilotus indicus Kenneth Clark 1980-5-10 654 Humboldt Along coastal bluffs of Point Delgada, Shelter Cove 6 Comment
  JEPS63451  Mentha pulegium W. L. Jepson 1936-8-11 17872 Humboldt South Fork Eel River Philipsville; , Philipsville Comment
  UCR3542  Mentha pulegium David Whistler, H. M. Whistler 1964-7-29 640729- 4 Humboldt North Coast Range, US 101, [South Fork Eel River] across the street from Myers Flat Store 63 Comment
  HSC63583  Mentha pulegium J. P. Smith 1971-10-9 5004 Humboldt Mad River above the Fish Hatchery. Comment
  UC577377  Mentha spicata Joseph P. Tracy 1925-8-16 7233 Humboldt Trinity River Valley, near the South Fork; Northern Coast Ranges, Trinity River Valley, near South Fork 182 Comment
  UC1225835  Mentha suaveolens Joseph P. Tracy 1943-11-7 17450 Humboldt near Bayside; near Bayside 6 Comment
  HSC70912  Mentzelia dispersa Gail Newton 1980-7-23 1740 Humboldt Near Packsaddle Ridge 1463 Comment
  HSC91898  Menziesia ferruginea E. Mackey 1986-5-13 Humboldt Patrick's Point State Park, Octopus Grove Comment
  UC1225906  Menziesia ferruginea Joseph P. Tracy 1947-5-24 17687 Humboldt Big Lagoon 15 Comment
  UC164898  Micropus californicus var. californicus Joseph P. Tracy 1908-6-9 2653 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  CAS-BOT-BC348503  Micropus californicus var. californicus S. K. Harris; J. P. Tracy 1942-6-15 s.n. Humboldt Harris Road, 1 mile east of Garberville 30 Comment
  CAS-BOT-BC322683  Microseris laciniata K. L. Chambers 1969-5-25 2921 Humboldt On road to Harris about 1 mile east of the freeway overpass at Garberville Comment
  UC166792  Microseris laciniata subsp. laciniata Joseph P. Tracy 1909-7-31 3028 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  RSA215473  Microseris laciniata subsp. laciniata K. L. Chambers 1969-5-25 2928 Humboldt Highway 36, 0.9 mile west of Bridgeville Comment
  UC1223195  Microseris laciniata subsp. laciniata Joseph P. Tracy 1942-6-15 17152 Humboldt 1/2 mi ne Garberville (on the road to Harris) 304 Comment
  UC582735  Microseris laciniata subsp. leptosepala Joseph P. Tracy 1935-6-23 3973 Humboldt French Camp Ridge Comment
  SEINET11810186  Microseris linearifolia J. P. Tracy 1947-1 17676 Humboldt near Briceland Comment
  CAS-BOT-BC349240  Microseris nutans Joseph P. Tracy 1930-7-16 8900 Humboldt South Fork Mountain. Near McKay Camp 1676 Comment
  SEINET12279136  Microsteris gracilis J. P. Tracy 1950-1 18648 Humboldt Valley of South Yager Creek 762 Comment
  UC582708  Mimulus arvensis H. E. Parks and Joseph P. Tracy 1931-5-9 12541 Humboldt near Miranda 60 Comment
  LA209133  Mimulus aurantiacus C. C. & S. K. Harris; 1936-6-9 sn Humboldt Above Carlotta 60 Comment
  HSC72410  Mimulus aurantiacus var. aurantiacus J. P. Smith 1973-5-26 6829 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC582603  Mimulus breweri Joseph P. Tracy Jul 16 1930-Jul 19 1930 8975 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC20758  Mimulus dentatus R. E. Hafenfeld 1965-5-9 51 Humboldt Fern Canyon, Gold Bluff Beach Comment
  SBBG66765  Mimulus dentatus L. Rowntree 1931-7-24 Humboldt Carlotta Comment
  HSC20708  Mimulus dentatus Jack Rockwell 1962-5-5 58 Humboldt W side Jacoby Creek 18 Comment
  SBBG15433  Mimulus dentatus H. and M. Dearing 1939-5-27 3453 Humboldt Russ Grove Redwoods Comment
  UC1196774  Mimulus dentatus J. P. Tracy 1901-6-10 1126 Humboldt Forest Park Eureka 0 Comment
  JEPS10474  Mimulus guttatus Lincoln Constance 1934-5-26 683 Humboldt s end Dyrville Bridge; South Fork Eel River, Bull Creek Region 45 Comment
  JEPS10789  Mimulus inodorus Joseph P. Tracy Jul 16 1930-Jul 19 1930 8983 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC102538  Mimulus moschatus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1524 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC56068  Mimulus moschatus G. L. Clifton, Griswold 1979-7-31 11734 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC25985  Mimulus pilosus Thomas W. Nelson 1970-9-3 226 Humboldt Mad River. Comment
  UC1173697  Mimulus pilosus Joseph P. Tracy 1939-9-24 16502 Humboldt near Blue Lake; Mad River 15 Comment
  JEPS11056  Mimulus primuloides Joseph P. Tracy 1935-7-26 14258 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  HSC56180  Mimulus primuloides var. primuloides G. L. Clifton, Griswold 1979-8-1 12095 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC48863  Mimulus pulsiferae Brad Klipfel 1973-6-10 56 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC55694  Mimulus pulsiferae Overton, Butler 1979-7-26 10015 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  UC1103540  Minuartia californica Joseph P. Tracy 1920-5-20 6215 Humboldt dry slope towards Lawrence Creek; Northern Coast Ranges, Kneeland Prairie 762 Comment
  RSA12523  Minuartia douglasii C. B. Wolf 1934-7-3 5913 Humboldt 21 miles from Orick on road to Weitchpec Road. Comment
  UC1223239  Minuartia douglasii Joseph P. Tracy 1950-7-6 18993 Humboldt 2 mi s Burr Valley (on the Albee Rd, Bridgeville to Blocksburg) 1158 Comment
  HSC74236  Minuartia nuttallii subsp. gregaria M. A. Baker 1980-7-11 2794 Humboldt Near Red Mtn. 1341 Comment
  CAS-BOT-BC433031  Mitella ovalis Volney Rattan 1883-6-1 s.n. Humboldt Freshwater Comment
  UC18806  Modiola caroliniana Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6176 Humboldt near Ferndale; North-Western California Comment
  RSA0074180  Modiola caroliniana J. B. Feudge 1923-7-26 85 Humboldt Damp roadside near Ferndale, Calif Comment
  UC183559  Moehringia macrophylla Joseph P. Tracy 1913-5-4 4056 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC56468  Monardella glauca Griswold, Butler 1979-7-12 7278 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC14275  Monardella odoratissima Doris K. Kildale 1927-7-22 3814 Humboldt Lasseck's Peak Comment
  HSC58020  Monardella odoratissima subsp. pallida G. L. Clifton 1979-7-31 11822 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  CAS-BOT-BC220257  Monardella sheltonii Harley P. Chandler 1901-6-1 1522 Humboldt Klamath River 457 Comment
  CAS-BOT-BC220260  Monardella sheltonii Henry M. Pollard 1946-8-22 s.n. Humboldt Highway above Ullathorne Riffle, Orleans region Comment
  UC203967  Monardella villosa subsp. villosa Joseph P. Tracy 1918-7-2 4984 Humboldt Mattole Valley, mouth of Honey Dew Creek; Northern Coast Ranges 152 Comment
  CAS-BOT-BC444800  Montia diffusa Don Hagar 1957-6-6 59 Humboldt Brush Mountain, ca. 4 miles southwest of Willow Creek 853 Comment
  RSA87679  Montia parvifolia L. R. Abrams, Rimo Bacigalupi 1922-6-25 8282 Humboldt Big Lagoon S of Quick Comment
  UC673004  Montia parvifolia Joseph P. Tracy 1935-7-24 14170 Humboldt Trinity Summit, near Ranger Station Trinity Summit 1828 Comment
  HSC37958  Morella californica Peter Sorensen 1976-6-12 Humboldt Woodley Island, Humboldt Bay Comment
  HSC89420  Morella californica P. A. Daly 1986-1-4 37 Humboldt Trinidad Head 61 Comment
  HSC44168  Muhlenbergia filiformis Thomas W. Nelson, Jane P. Nelson 1977-9-3 3738 Humboldt Head of Bear Creek 1585 Comment
  UCD86797  Muhlenbergia mexicana Eleanor Armstrong 1934-1 1149 Humboldt Richardson Grove. Comment
  JEPS70787  Myosotis discolor Joseph P. Tracy 1925-5-10 6963 Humboldt near Hydesville; North Coast Ranges 91 Comment
  JEPS70790  Myosotis discolor W. L. Jepson 1936-8-17 17917 Humboldt 2 mi. s. Fields Landing Comment
  HSC3743  Myosotis discolor J. R. Good 1964-5-15 42 Humboldt Mad River Park. NE of parking lot, 85 yds. towards Mad River Comment
  HSC3722  Myosotis sylvatica R. F. Good 1962-5-23 6 Humboldt Surrounding Arcata 60 Comment
  HSC98157  Narcissus pseudonarcissus N. D. Dennis 1965-4-8 15 Humboldt Old Arcata Rd. at Jacoby Creek Rd. Comment
  HSC15608  Narthecium californicum J. P. Tracy 1930-7-17 9003 Humboldt S Fork Mtn. at McKay Camp 1677 Comment
  CAS-BOT-BC60345  Nasturtium officinale Doris K. Kildale 1926-5-2 1901 Humboldt Willow Creek Flat. 152 Comment
  HSC97972  Navarretia divaricata subsp. divaricata Cara Witte 2007-6-21 322 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1419 Comment
  UC133661  Navarretia divaricata subsp. vividior Joseph P. Tracy 1908-6 2721 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  SEINET200374  Navarretia divaricata var. vividior Joseph P. Tracy 1908-7-27 2721 Humboldt Valley of Van Duzen River, opposite Buck Mountain 305 Comment
  HSC38261  Nemophila menziesii var. atomaria Thomas W. Nelson, James Nelson 1976-3-11 2268 Humboldt Beside Bridgeville-Kneeland Rd. at jct. with Redwood House Rd. Comment
  POM73962  Nemophila menziesii var. atomaria Joseph P. Tracy 1906-5-6 2445 Humboldt Near Hydesville. 60 Comment
  HSC97499  Nemophila parviflora var. austiniae C. Witte 2007-5-21 50 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1419 Comment
  CAS-BOT-BC233456  Nicotiana glauca Clare R. Wheeler 1979-8-13 1205 Humboldt Avenue of the Giants, SW Mailliard Grove, Humboldt State Park 152 Comment
  RSA176510  Noccaea fendleri subsp. glauca Doris K. Kildale 1926-3-21 1581 Humboldt Kneeland Prairie. 854 Comment
  UCD110186  Notholithocarpus densiflorus B. L. Kay 1955-6-7 s.n. Humboldt Wagner Ranch, 5 miles southwest Garberville. Comment
  HSC43110  Notholithocarpus densiflorus var. densiflorus Thomas W. Nelson, Jane P. Nelson 1978-2-5 3760 Humboldt Kneeland, E side of junction of Kneeland and Maple Creek roads 671 Comment
  HSC37831  Oemleria cerasiformis Thomas W. Nelson, Jane P. Nelson 1976-2-21 2248 Humboldt Tish-Tang campground Comment
  HSC97444  Oenanthe sarmentosa Ivy Watson 2008-9-28 27 Humboldt Beach N of river mouth, along small tributary E of sand dunes 4 Comment
  CDA38492  Oenanthe sarmentosa Margaret Bellue Jul 1933 s.n. Humboldt [no further data] 0 Comment
  POM224765  Oenothera glazioviana P. A. Munz 1936-8-13 14384 Humboldt 7 miles east of Arcata. Comment
  UC203546  Oenothera wolfii Joseph P. Tracy 1918-7-1 4968 Humboldt moist bluff Northern Coast Ranges, Cape Mendocino (three mi s of point of cape) 3 Comment
  HSC16681  Orobanche californica subsp. californica H. E. Parks, S. T. Parks 1930-9-14 782 Humboldt Big Lagoon Comment
  CAS-BOT-BC500233  Orobanche pinorum Henry M. Pollard 1946-8-11 s.n. Humboldt Perch Creek, Orleans region Comment
  UC1197450  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1908-6 2881 Humboldt Valley of Van Duzen River, opposite Buck Mountain. Comment
  HSC56040  Orthocarpus imbricatus G. L. Clifton, Terry Griswold 1979-7-31 11605 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  POM210218  Orthocarpus lithospermoides S. T. Parks, Joseph P. Tracy 1930-5-25 796 Humboldt Vicinity of Bridgeville, Laribee Valley. Comment
  HSC100940  Orthocarpus pusillus Miss Handy Jun 1886 340 Humboldt Maple Cr. Comment
  SEINET8733553 Image available Orthocarpus pusillus C. C. Harris, S. K. Harris 1942-1 1283 Humboldt 1 mile north and 3 miles west of Chalk Mountain Comment
  UC162920  Osmorhiza berteroi Joseph P. Tracy 1911-7-5 3322 Humboldt along Willow Creek near mouth (creek is a tributary of Trinity River)); Northern Coast Ranges 304 Comment
  JEPS154  Osmorhiza occidentalis W. L. Jepson Jul 16 1902-Jul 23 1902 2045 Humboldt Trinity Summit 2133 Comment
  HSC59400  Osmorhiza purpurea Rick Lundquist 1979-5-2 55 Humboldt SE corner 7th & Union Streets 24 Comment
  UC176987  Oxalis albicans subsp. pilosa Joseph P. Tracy 1912-6-9 3682 Humboldt Alton Northern Coast Ranges 30 Comment
  HSC12755  Oxalis corniculata M. J. Athey 1970-11-22 23 Humboldt In Arcata along G street in front of P G & E Comment
  OBI33240  Oxalis oregana David J. Keil 1983-7-1 17259 Humboldt Along Bull Creek Flats Rd 1.4 mi W of US 101. Humboldt Redwoods State Park Comment
  JEPS43139  Oxalis oregana W. L. Jepson 1932-7-28 16432 Humboldt Bull Creek Flat Comment
  SEINET12183670  Oxalis oregana F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -290 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  UC1197420  Oxalis oregana Joseph P. Tracy 1926-4-25 7413 Humboldt Strong's Station Northern Coast Ranges 60 Comment
  UCD88691  Panicum acuminatum var. fasciculatum Joseph P. Tracy 1918-7-5 5014 Humboldt White Thorn Valley. 304 Comment
  POM366049  Panicum oligosanthes var. scribnerianum Henry M. Pollard 1947-8-30 s.n. Humboldt Near Wilson Creek, on Klamath River, (near Orleans) Comment
  UC1222793  Parentucellia viscosa Joseph P. Tracy 1950-6-8 18759 Humboldt leading from the coast toward Petrolia; Domingo Hill Comment
  UC582564  Parentucellia viscosa Joseph P. Tracy 1923-6-18 6284 Humboldt 1 mi s from point Cape Mendocino; Northern Coast Ranges 152 Comment
  HSC104072  Parnassia palustris S. Carothers 2001-8-29 Humboldt Six Rivers National Forest; Lassics Botanical Area 1537 Comment
  UC204717  Paspalum distichum Joseph P. Tracy 1918-9-29 5108 Humboldt 4 mi above mouth South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  HSC54592  Paxistima myrsinites Overton, Butler 1979-7-24 9660 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC99033  Paxistima myrsinites Cara Witte 2008-7-1 780 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1462 Comment
  POM126156  Paxistima myrsinites Joseph P. Tracy 1922-4-30 6042 Humboldt Brannan Mountain. viz. ridge north of Willow Creek, between Willow and Campbell Creeks. 915 Comment
  UC902125  Paxistima myrsinites Joseph P. Tracy 1942-6-23 17245 Humboldt 2 mi. e. Box Camp; Trinity Summit 1524 Comment
  HSC20928  Pedicularis densiflora R. A. Rasp 1964-4-25 33 Humboldt 2.5 mi. E of Willow Creek off of Hwy. 299 Comment
  HSC44531  Penstemon anguineus Brad Klipfel 1973-7-1 139 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC55690  Penstemon anguineus Walter Overton, Marvin Butler 1979-7-26 9999 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1341 Comment
  RSA425609  Penstemon anguineus H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1372 Comment
  BLMAR213  Penstemon anguineus Jennifer Anthony-Wheeler 1996-7-9 213 Humboldt Pilots ridge., open gen. Loggged areas of +/- conf. Forest 1402 Comment
  HSC98846  Penstemon anguineus Cara Witte 2007-7-19 547 Humboldt Ammon Ridge Road. 1.2 miles east of intersection with National Forest 1. 1500 Comment
  SDSU10915  Penstemon anguineus D. F. Howe 1964-8-7 3945 Humboldt 6.2 miles from #96 on Mill Creek Road, Hoopa Valley. 1067 Comment
  HSC56129  Penstemon deustus G. L. Clifton, Terry Griswold 1979-8-1 11938 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  JEPS11239  Penstemon deustus var. deustus Joseph P. Tracy 1935-7-28 14327 Humboldt Head of Devil's Hole Trinity Summit, Head of Devil's Hole 1828 Comment
  HSC56044  Penstemon procerus var. brachyanthus G. L. Clifton, Terry Griswold 1979-7-31 11619 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  SEINET10547443 Image available Penstemon rattanii var. rattanii V. Rattan Rattan 11918 Humboldt 792 Comment
  HSC1077  Pentagramma triangularis D. E. Anderson 1965-11-21 4170 Humboldt 3-4 mi. S of Weitchpec along rd. to Hoopa Comment
  UC162775  Pentagramma triangularis subsp. triangularis Joseph P. Tracy 1911-7-5 3315 Humboldt Willow Creek near its mouth Willow Creek; Northern Coast Ranges, tributary of Trinity River 243 Comment
  UCD137788  Pentagramma triangularis subsp. triangularis Linda M. Barker 1976-3-11 1329 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  UC184100  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1913-9-7 4390 Humboldt Eureka Northern Coast Region 0 Comment
  UC906651  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1947-8-24 17894 Humboldt Box Camp Trinity Summit 1463 Comment
  JEPS146  Perideridia gairdneri subsp. gairdneri W. L. Jepson 1936-8-17 17918 Humboldt hillside 2 mi s Field's Landing Comment
  UC642305  Perideridia howellii Joseph P. Tracy 1939-9-4 16474 Humboldt Larrabee Valley; gully in foothills at edge of valley 731 Comment
  RSA41945  Perideridia kelloggii H. C. Cantelow 1936-8-28 1723 Humboldt 4 1/2 miles SW of Dinsmore, Fortuna, bluff road Comment
  HSC55993  Perideridia parishii subsp. latifolia Overton, Butler 1979-7-31 11423 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC1197119  Perideridia parishii subsp. latifolia E. Ethel Tracy 1919-8-1 Humboldt Trinity Summit Northern Coast Ranges 1524 Comment
  HSC91906  Petasites frigidus var. palmatus E. Mackey 1986-7-10 Humboldt Patrick's Point State Park; near restroom on the road to Wedding Rock Comment
  JEPS1437  Phacelia bolanderi W. L. Jepson 1932-8-9 16536 Humboldt Bull Creek 106 Comment
  RSA167318  Phacelia bolanderi Joseph P. Tracy 1950-6-18 18852 Humboldt Briceland Comment
  UC56715  Phacelia bolanderi Harley P. Chandler May 1901 1088 Humboldt Idlewild North Coast Ranges 91 Comment
  UC660089  Phacelia heterophylla subsp. virgata G. L. Stebbins Jr. 1941-5-27 3111 Humboldt 1/4 mi w Bridgerville (on hwy to Eureka) Comment
  JEPS1161  Phacelia mutabilis Lincoln Constance 1934-6-19 909 Humboldt Grasshopper Peak South Fork Eel River, Bull Creek region (near summit) 914 Comment
  JEPS55962  Phacelia mutabilis John Thomas Howell 1937-7-31 13715 Humboldt Boise Creek Comment
  UC671690  Phacelia nemoralis subsp. oregonensis Lincoln Constance, Alan A. Beetle 1940-5-16 2609 Humboldt 12 mi s Eureka (summit of bluff); Table Bluff 30 Comment
  HSC58024  Phacelia procera G. L. Clifton 1979-7-31 11831 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC552717  Phalaris angusta Joseph P. Tracy 1935-5-25 13856 Humboldt Fort Seward 106 Comment
  CAS-BOT-BC258964  Phalaris californica John Thomas Howell 1937-7-31 13718 Humboldt Between Redwood Creek and Korbel Comment
  JEPS49596  Philadelphus lewisii W. L. Jepson 1902-7-29 2124 Humboldt Hupa Valley; along streams 243 Comment
  JEPS49602  Philadelphus lewisii Harley P. Chandler June, 1901 1523 Humboldt Sommes Bar North Coast Ranges, Klamath River 426 Comment
  RSA0046935  Philadelphus lewisii Joseph P. Tracy 1926-6-27 7696 Humboldt Horse Mountain. 1067 Comment
  HSC97276  Phleum alpinum M. Mesler 2007-7-15 783 Humboldt Near Grouse Mtn., 0.9 mi. S of NF 1 on FS Rd. 5N04 1582 Comment
  UCD89305  Phleum alpinum Don Hagar 1957-8-6 s.n. Humboldt Jackson Hole, west slope of the Trinity Summit area. 1645 Comment
  HSC99494  Phleum pratense K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 154 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  UCD89642  Phleum pratense Joseph P. Tracy 1948-8-8 18089 Humboldt Lagna, near the school house. 609 Comment
Read comments Jun 16 2013
  UC52675  Phlox adsurgens Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  HSC49981  Phlox adsurgens M. A. Baker 1979-6-7 779 Humboldt N bank of road to Snow Mtn. 610 Comment
  HSC17159  Phlox diffusa D. E. Anderson 1965-4-24 3529 Humboldt Horse Mtn. 1524 Comment
  UC52845  Phlox gracilis Joseph Burtt Davy and Walter C. Blasdale 1899-5 5789 Humboldt Trinity Summit Comment
  UC604637  Phlox gracilis Joseph P. Tracy 1938-6-13 15923 Humboldt Cold Springs Grouse Mountain 1432 Comment
  UC908448  Phlox gracilis Joseph P. Tracy 1938-7-11 12699 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC672849  Phoradendron juniperinum Joseph P. Tracy 1932-7-16 16048 Humboldt Trinity Summit, Corral Prairie 1584 Comment
  HSC59450  Phoradendron serotinum subsp. tomentosum Kenneth Clark 1979-5-13 280 Humboldt Chezem Rd., off of Hwy. 299, 0.2 mi. W of N end of Chezem Rd. 610 Comment
  CAS-BOT-BC140582  Physocarpus capitatus Carl B. Wolf 1927-8-30 1227 Humboldt 2 mi. s. of Petrolia on the [Matole] Mattole River near point where road crosses river Comment
  JEPS44662  Physocarpus capitatus Mr. and Mrs. Geo. Parrish 1930-5-21 Humboldt Trinidad Comment
  RSA172348  Physocarpus capitatus Robert F. Thorne 1957-9-2 19000 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC666856  Physocarpus capitatus Joseph P. Tracy 1935-6-23 13990 Humboldt French Camp Ridge 1066 Comment
  HSC45890  Picea sitchensis J. P. Smith 1971-10-6 4969 Humboldt End of Murray Rd. in McKinleyville, Bulk Collection 155 Comment
  SDSU1550  Picea sitchensis D. F. Howe 1961-8-1 3110 Humboldt Three miles north of Arcata on #101. Comment
  UCR48862  Picris echioides R. D. Goeden, Don W. Ricker 1987-9-2 870902- 6 Humboldt Hwy 36 at Chantham Grove (just west of Grizzly Creek Redwoods State Park.) 91 Comment
  CAS-BOT-BC78375  Pinus contorta W. R. Dudley 1899-6-1 s.n. Humboldt between Humboldt and Ocean Comment
  HSC31517  Pinus contorta Steve Selva, Roger Jensen 1974-8-28 92 Humboldt Approx. 5 mi. S of Arcata on the Samoa Peninsula Comment
  RSA46891  Pinus jeffreyi Doris K. Kildale 1927-7-22 3832 Humboldt Lasseck s Peaks Comment
  CAS-BOT-BC73113  Pinus lambertiana Doris K. Kildale 1926-9-5 2611 Humboldt Lassecks Peaks, Goat Camp 1661 Comment
  HSC44345  Pinus monticola Brad Klipfel 1975-6-17 691 Humboldt Horse Mtn. Comment
  UC55659  Pinus ponderosa P. E. Goddard 1901-7-12 66 Humboldt Hupa Comment
  UC275575  Piperia candida Joseph P. Tracy 1923-6-19 6297 Humboldt near Kings Peak; Northern Coast Ranges, Wilder Ridge 609 Comment
  HSC104330  Piperia candida James Regan, Humboldt Redwood Co., LLC 2010-7-8 26 Humboldt Top of Thompson Creek, Larabee area 610 Comment
  POM208985  Piperia candida Lincoln Constance 1934-5-27 708 Humboldt Humboldt Redwood Park, in Border Forest, bluff above Bull Creek, Flat Grove 61 Comment
  UC14939  Piperia elegans Harley P. Chandler Jun 1901 1385 b Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC1222229  Plagiobothrys bracteatus Joseph P. Tracy 1948-6-13 18031 Humboldt on Larrabee Creek Road around pool (halfway between Bridgeville and Blocksburg) Comment
  CAS-BOT-BC228213  Plagiobothrys hispidulus Joseph P. Tracy 1935-7-25 14226 Humboldt Klamath Mountains, Trinity Summit. At Corral Prairie 1524 Comment
  JEPS68075  Plagiobothrys nothofulvus W. L. Jepson 1934-5-7 16738 Humboldt Buckeye Prairie Bull Creek Comment
  UC1222213  Plagiobothrys reticulatus Joseph P. Tracy 1942-5-16 17337 Humboldt Garberville 152 Comment
  UC1239569  Plagiobothrys reticulatus Joseph P. Tracy 1909-5-23 2972 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  UC1541669  Plagiobothrys reticulatus H. E. and S. T. Parks July 1937 24042 Humboldt Trinidad, Spruce Cove Comment
  UCD120865  Plagiobothrys reticulatus H. E. Parks 1937-7-1 24042 Humboldt Spruce Cove, Trinidad. 64 Comment
  UC526823  Plagiobothrys reticulatus Joseph P. Tracy 1923-6-20 6340 Humboldt Miranda North Coast Ranges, Miranda 91 Comment
  JEPS60974  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1918-7-5 5010 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  UC1222201  Plagiobothrys scouleri Joseph P. Tracy 1950-6-29 18936 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  HSC16840  Plantago lanceolata D. B. Bader 1963-4-1 13 Humboldt Second of the Clam Beach lagoons, W of Hwy. 101 Comment
  HSC16844  Plantago lanceolata R. I. Bonn 1965-5-9 38 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC71216  Plantago maritima Thomas W. Nelson, Doris K. Niles 1979-5-19 4692 Humboldt Tidal marsh at mouth of Eel River, Crab Park, N of County Park. Comment
  HSC16868  Plantago subnuda Jerry Parker 1968-10-7 92 Humboldt Near mouth of Mad River Comment
  UC429188  Platanthera Franklin P. Nutting Humboldt Bridge Creek, n California Bridge Creek Comment
  UC176370  Platanthera leucostachys Joseph P. Tracy 1912-7-31 3901 Humboldt nw slope Buck Mountain (Burr Valley); Northern Coast Ranges, nw slope Buck Mountain 1066 Comment
  HSC98719  Platanthera sparsiflora Cara Witte 2008-7-1 792 Humboldt Near Grouse Mountain spring. Along Forest Service Road 5N04. 1/4 mile east of intersection with 4N70. 1583 Comment
  HSC90238  Platystemon californicus Louise Watson, Jan Meninga Mar 1991 14 Humboldt Near Manilla, Mad River Slough and Dunes, NW edge of parking lot Comment
  HSC16797  Platystemon californicus J. W. Bosworth 1965-4-3 4 Humboldt Samoa sand dunes, 1 mi. SW of Fairhaven Comment
  UC999830  Plectritis brachystemon S. C. Dyal 1938-6-10 739 Humboldt near Capetown Comment
  UC1239596  Plectritis congesta Joseph P. Tracy 1935-6-23 13974 Humboldt French Camp Ridge 1066 Comment
  UC1239577  Plectritis congesta Joseph P. Tracy 1901-5-18 1100 1/2 Humboldt Northern Coast Region, Ocean Beach at Humboldt Bay Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  UC1239602  Plectritis congesta Joseph P. Tracy 1925-5-30 7017 Humboldt 3 mi w of Maple Grove (Bridgeville, Kemp's Ranch); Bridgeville, Kemp's Ranch 198 Comment
  RSA183537  Pleuropogon refractus H. S. Logsdon 1964-5-10 12 Humboldt 4 miles NE of Orick at Boye's Prairie Comment
  SEINET10602042  Pleuropogon refractus Harley P. Chandler Chandler 1107 Humboldt Bay. 15 Comment
  SEINET200752  Pneumonanthe oregana J. P. Tracy 1904-8-7 2140 Humboldt Immediate vicinity of Eureka. 0 Comment
  RSA44528  Poa bulbosa Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River, Orleans Comment
  RSA10140  Poa compressa Joseph P. Tracy 1927-7-3 8224 Humboldt Fieldbrook 61 Comment
  CAS-BOT-BC255122  Poa confinis Joseph P. Tracy 1927-4-24 7947 Humboldt Eureka, near bay shore 9 Comment
  HSC10679  Poa confinis L. M. Malloy 1965-4-23 46 Humboldt Samoa, sand dunes 1/4 mi. NW of the corner of Thunder Rd. and The Hard Way. Comment
  HSC33722  Poa confinis Dryden 1975-5-24 201 Humboldt Samoa Dunes off Samoa Blvd. across from boat landing. Comment
  HSC38919  Poa confinis Linda M. Barker 1976-4-30 1412 Humboldt 3 mi. W of Arcata Comment
  UC207680  Poa douglasii Joseph P. Tracy 1917-5-30 4798 Humboldt at Little River Ocean Beach; Northern Coast Region Comment
  RSA10144  Poa howellii Joseph P. Tracy 1926-5-15 7490 Humboldt Kneeland Prairie 762 Comment
  UC34128  Poa howellii Joseph Burtt Davy and W. C. Blasdale 1899-6-22 5822 a Humboldt Trinity Summit Comment
  UCD91135  Poa howellii A. H. Murphy 1950-5-10 s.n. Humboldt E. M. Cottrell Ranch, on Roth Road. Comment
  RSA54930  Poa macrantha W. A. Silveus 1938-7-10 6912 Humboldt North of Eureka Comment
  HSC10768  Poa pratensis N. R. Waite 1965-5-19 42 Humboldt W edge of Humboldt State University campus. Comment
  HSC73058  Poa pratensis M. A. Baker 1980-7-22 3110 Humboldt Near Grogan Hole. 1676 Comment
  HSC74757  Poa pratensis Gail Newton 1981-7-24 2307 Humboldt Near Chaparral Mtn. 1433 Comment
  UCD91919  Poa pratensis P. B. Kennedy 1923-8-3 s.n. Humboldt south of Scotia. By road through red woods off highway. Comment
  POM204850  Poa secunda W. C. Blasdale, Jos Burtt Davy 1899-6-19 5658 Humboldt Hoopa Summit Comment
  HSC102627  Poa secunda subsp. secunda M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1612 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC98597  Poa secunda subsp. secunda Cara Witte 2007-6-4 197 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC1103170  Poa secunda subsp. secunda J. P. Tracy 1903-5-23 1896 Humboldt on Eel River Alder Point 152 Comment
  UC1103188  Poa trivialis Joseph P. Tracy 1938-6-17 15948 Humboldt 1 mi e Cape Mendocino (Cape Ridge) 304 Comment
  JEPS62463  Pogogyne serpylloides Joseph P. Tracy 1921-6-12 5829 Humboldt Butler Valley 152 Comment
  UC153997  Pogogyne serpylloides Joseph P. Tracy 1908-6-7 2622 Humboldt at Butter Valley on Mad River 152 Comment
  RSA141275  Polemonium carneum Joseph P. Tracy 1924-5-25 6682 Humboldt Big Lagoon 30 Comment
  HSC61767  Polygala californica Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan 229 Comment
  SBBG93447  Polygala californica H. P. Chandler -Jun-1901 1328 Humboldt Hupa [Hoopa] Indian Reservation 152 Comment
  UC275278  Polygonum aviculare subsp. depressum Joseph P. Tracy 1924-8-24 6826 Humboldt near the South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC672967  Polygonum davisiae Joseph P. Tracy 1935-7-30 14383 Humboldt Salmon Summit 2103 Comment
  JEPS51269  Polygonum douglasii Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  UC146190  Polygonum douglasii subsp. spergulariiforme Joseph P. Tracy 1908-7-1 2888 Humboldt ridge between Van Duzen River and Mad River (near Low Gap, Humboldt and Trinity Cos.); Northern Coast Ranges 609 Comment
  HSC55062  Polygonum minimum G. L. Clifton, Griswold 1979-7-31 11624 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC205473  Polygonum minimum Joseph P. Tracy 1919-9-18 5235 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  CAS-BOT-BC109179  Polygonum paronychia Joseph P. Tracy 1930-7-21 8890 Humboldt Cape Mendocino. South of point of the cape. 30 Comment
  CAS-BOT-BC109186  Polygonum paronychia Ira L. Wiggins 1930-7-11 4685 Humboldt Near Samoa. Comment
  HSC64430  Polygonum paronychia J. P. Smith 1971-10-6 4957 Humboldt End of Murray Rd. in McKinleyville. Comment
  UC1101120  Polygonum persicaria Malcolm A. Nobs and S. Galen Smith 1949-8-9 1233 Humboldt Town of Blue Lake; marshy pond on s side Comment
  UC1052469  Polygonum sachalinense H. E. and S. T. Parks July 1952 24448 Humboldt Hwy 10 s Elk River Bridge Comment
  RSA109297  Polygonum sachalinense H. E. Parks, S. T. Parks 1952-07 24448 Humboldt South of the Elk River Bridge on Hwy 10 Comment
  CAS-BOT-BC421009  Polygonum spergulariiforme Doris Kildale 1931-6-6 10872 Humboldt Gans Prairie, Orick - Weitchpec road Comment
  HSC45418  Polygonum spergulariiforme Thomas W. Nelson, Jane P. Nelson 1977-8-6 3720 Humboldt Ridge between Bear and Blanket Creeks Comment
  HSC95876  Polypodium glycyrrhiza Will Ferrand 2002-5-7 47 Humboldt 9 mi. E of the intersection of West End Rd. and Warren Creek Rd. 67 Comment
  UC71485  Polypodium glycyrrhiza Mrs. M. H. Manning 1901-1 Humboldt Hupa Valley Comment
  SEINET200789 Image available Polypodium glycyrrhiza Joseph P. Tracy 1931-3-26 9294 Humboldt Blue Slide, on Van Duzen River Comment
  RSA689963  Polypodium scouleri May N. Ackley 1936-8-15 375 Humboldt Patrick s Point 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
  UC370621  Polypodium scouleri H. E. Parks June 1925 3232 Humboldt Orick Comment
  HSC10833  Polypogon maritimus J. P. Tracy 1933-7-20 12811 Humboldt Along Mad River, near Blue Lake. 15 Comment
  UC39746  Polypogon monspeliensis Harley P. Chandler June 1901 1431 Humboldt sandy banks Klamath River; North Coast Ranges, Klamath River 335 Comment
  UC50476  Polypogon monspeliensis Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5510 Humboldt near Camp Grant; near Camp Grant Comment
  HSC13042  Polystichum munitum T. C. DeCew 1970-11-14 35 Humboldt HSU Campus Comment
  RSA1504  Polystichum munitum E. R. Johnson 1929-08 1409 Humboldt Arcata Redwood Park 76 Comment
  SBBG307  Polystichum munitum H. and M. Dearing 1939-5-27 3455 Humboldt Patrick's Point Comment
  UC275528  Populus trichocarpa Joseph P. Tracy 1923-5-6 6197 Humboldt Blue Lake; Northern Coast Ranges, Blue Lake 30 Comment
  CAS-BOT-BC453910  Potamogeton pectinatus Robert F. Thorne; P. Everett 1965-8-9 35343 Humboldt Along Hwy. 101 about 3 mi. N of Eureka 1 Comment
  HSC96488  Potentilla anserina subsp. pacifica Gordon Leppig 1997-8-3 633 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  HSC36106  Potentilla anserina subsp. pacifica Otis Weimer 1973-10-16 731010 .5 Humboldt On Lindsay Creek Marsh 4 mi. N of Hwy. 299 on Fieldbrook Rd. Comment
  RSA246705  Potentilla anserina var. grandis Robert F. Thorne, Percy C. Everett 1965-8-7 35228 Humboldt Samoa Peninsula. 3 Comment
  UC1586954  Potentilla drummondii Juha Pykala and D. H. Norris 1987-6-11 1593 Humboldt s North Trinity Mountain (w of Crogan Hole); North Trinity Mountain Wilderness Area 1550 Comment
  UC492176  Potentilla drummondii Joseph P. Tracy 1932-7-10 10391 Humboldt wet meadow at Corral Prairie (Trinity Summit); Klamath Mountains, Trinity Summit 1524 Comment
  HSC59611  Potentilla gracilis var. fastigiata J. P. Smith, Steve Selva 1970-6-30 4102 Humboldt Comment
  HSC73575  Prosartes hookeri Gail Newton 1980-7-14 1513 Humboldt Near Deadman Ridge 1097 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
  SBBG979  Prosartes hookeri H. and M. Dearing 1933-5-16 253 Humboldt Weott Comment
  SEINET12044958  Prosartes smithii H. C. Cantelow 1936-1 s.n. Humboldt 11 mi E of Orick Comment
  SEINET12045060  Prosartes smithii Unknown 1933-1 3413 Humboldt Dyerville, South Fork of Eel River Comment
  HSC31554  Prunella vulgaris Glenn McGourty 1974-5-11 44 Humboldt Along Maple Creek Rd. Comment
  HSC39157  Prunella vulgaris subsp. lanceolata D. E. Anderson, J. P. Smith 1971-6-28 - 1266 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC22530  Prunella vulgaris subsp. lanceolata Jerry Parker 1968-9-23 68 Humboldt 1/4 mi. S of Vista Point Comment
  JEPS62488  Prunella vulgaris var. lanceolata Joseph P. Tracy 1940-9-26 16729 Humboldt Eureka 6 Comment
  UC153994  Prunella vulgaris var. lanceolata Joseph P. Tracy 1908-6 2776 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  RSA43859  Prunus avium H. M. Pollard 1948-7-20 s.n. Humboldt River banks, roadsides and edges of forest near Orleans escape Comment
Read comments Sep 17 2010
  RSA46689  Prunus emarginata Doris K. Kildale 1938-6-5 15387 Humboldt Horse Mountain Comment
  UC183605  Prunus emarginata Joseph P. Tracy 1912-7-31 3922 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain Comment
  UC183749  Prunus emarginata Joseph P. Tracy 1913-6-17 4183 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  UC666844  Prunus emarginata Joseph P. Tracy 1933-6-13 12571 Humboldt Hoopa Mountain, near summit on road from Hoopa westward to Bair's Hoopa Mountain 1066 Comment
  CDA3914  Prunus laurocerasus Gordon Leppig 2000-4-12 1291 Humboldt Behind Humboldt University, west of Fern Lake, Arcata. Comment
  CAS-BOT-BC154740  Prunus virginiana var. demissa Doris K. Kildale 1926-5-16 1841 Humboldt Horse Mountain 792 Comment
  UC154497  Prunus virginiana var. demissa Joseph Burtt Davy and Walter C. Blasdale 1899-5 5703 Humboldt Hoopa Valley; North Coast Ranges, Hoopa Valley Comment
  UC467868  Prunus virginiana var. demissa P. E. Goddard 1906-6 671 Humboldt Lassecks Peak (=Signal Peak) Lassecks Peak Comment
  HSC54561  Pseudotsuga menziesii var. menziesii Overton, Butler 1979-7-24 9576 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  UC902023  Pseudotsuga menziesii var. menziesii Joseph P. Tracy 1949-4-3 18278 Humboldt Trinidad 3 Comment
  RSA152293  Puccinellia nutkaensis Joseph P. Tracy 1950-6-17 18834 Humboldt At Eureka. Comment
  JEPS19284  Pycnanthemum californicum Joseph P. Tracy 1931-9-7 9637 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  CHSC104064  Pyracantha angustifolia Peter F. Zika 2009-6-15 24493 Humboldt North Coast Ranges. Route 299, 0.2 km W of Davis Street, near town of Blue Lake. 80 Comment
  CAS-BOT-BC462872  Pyrola asarifolia J. W. Tilden 1946-6-21 s.n. Humboldt Bluff Creek Comment
  SJSU909  Pyrola asarifolia J. W. Tilden 1946-6-21 1013 Humboldt Bluff Cr c. 1.5 mi above Klamath R Comment
  HSC45427  Pyrola crypta Thomas W. Nelson, Jane Nelson 1977-6-19 3502 Humboldt Along ridge N of pond above Alder Springs 1585 Comment
  HSC97954  Pyrola crypta Cara Witte 2007-6-2 397 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1546 Comment
  UC562733  Pyrola picta Joseph P. Tracy 1932-7-14 10569 Humboldt Trinity Summit, near Corral Prairie 1584 Comment
  HSC54647  Quercus chrysolepis Overton, Butler 1979-7-25 9847 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  UC1196524  Quercus garryana Joseph P. Tracy 1924-8-31 6857 Humboldt Klamath River at Bluff Creek Northern Coast Ranges 91 Comment
  UC1541341  Quercus garryana H. E. Parks, J. P. Tracy 1930-9-15 764 Humboldt Kneeland Prairie Bald Hills Comment
  UC667989  Quercus garryana Joseph P. Tracy 1935-7-14 14090 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC98850  Quercus garryana var. garryana Cara Witte 2008-9-13 1037 Humboldt Forest Service Road 4N06. 1/4 mile east of intersection with National Forest 1. Cow Creek Ridge. 1283 Comment
  OBI36116  Quercus garryana var. garryana David J. Keil 1983-7-1 17265 Humboldt Ca. 8 mi W of jctn US 101 along Bull Creek Flats rd Comment
  HSC8259  Quercus kelloggii D. E. Anderson 1961-9-30 1835 Humboldt Comment
  JEPS37764  Quercus kelloggii W. L. Jepson 1902-6 1956 Humboldt Green Point Ranch Redwood Creek Comment
  UC1196357  Quercus kelloggii Joseph P. Tracy 1940-10-15 16780 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC379461  Ranunculus alismifolius Volney Rattan 1883-6-1 s.n. Humboldt Landslide ponds northeast of Mad R. Comment
  SEINET13716688  Ranunculus californicus Unknown 1910-5-8 3132 Humboldt Immediate vicinity of Eureka Comment
  HSC26334  Ranunculus californicus var. californicus Thomas W. Nelson 1971-4-12 376 Humboldt S spit of Humboldt Bay. Comment
  HSC18135  Ranunculus californicus var. cuneatus A. H. Teshima 1963-2-15 2 Humboldt Moonstone Beach Comment
  POM269620  Ranunculus flammula var. ovalis Joseph P. Tracy 1937-5-30 15312 Humboldt In Shallow pond near Bosworth's, alt 1200ft. Larrabee Creek. Comment
  HSC28201  Ranunculus hebecarpus Thomas W. Nelson 1971-5-7 429 Humboldt Beside Hwy. 101 1.0 mi. S of Arcata Comment
  UC1196269  Ranunculus muricatus J. P. Tracy 1907-6-10 2566 Humboldt Immediate vicinity of Eureka 0 Comment
  UC1196225  Ranunculus occidentalis Joseph P. Tracy 1921-4-24 5453 Humboldt Phillipsville Flat Northern Coast Ranges, South Fork of Eel River 91 Comment
  UC1537332  Ranunculus occidentalis Gordon H. True Jr. 1936-5-11 466 Humboldt 12 mi w Miranda (e slope of ridge); Elk Ridge 457 Comment
  HSC99124  Ranunculus occidentalis var. occidentalis Cara Witte 2008-6-13 720 Humboldt Forest Service Road 4N32. 0.5 mi. N of intersection with Forest Service Road 4N32B. 1417 Comment
  HSC70952  Ranunculus orthorhynchus J. M. DiTomaso 1981-5-15 2008 Humboldt Larabee Valley, 10 mi. E of Bridgeville on Hwy. 36 Comment
  UC1196247  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1911-6-30 3273 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC1103015  Ranunculus parviflorus Harry B. Tucker 1933-6-13 Humboldt near Ferndale 15 Comment
  CDA3497  Ranunculus parviflorus E. C. Whitney 1962-5-29 Humboldt Millsap property, Pepperwood. 0 Comment
  HSC90682  Ranunculus repens Gail Newton 1982-5-31 3564 Humboldt Elk River Wildlife Area, Eureka Comment
  RSA554594  Ranunculus repens Walter Wisura 1993-5-9 4912 Humboldt Hwy 255 W of Arcata. Comment
  POM269223  Ranunculus sardous Joseph P. Tracy 1938-7-15 16080 Humboldt Humbold County: Eel River Valley, near Grizzly Bluff, Troublesome weed, recently established in rich valley lands Comment
  UCD18404  Ranunculus testiculatus Jack Major 1982-4-18 s.n. Humboldt 13 miles east of Winnemucca on I-80, north lane. Comment
  POM126158  Rhamnus californica subsp. occidentalis Joseph P. Tracy 1921-10-2 5963 Humboldt Kneeland Prairie. Comment
  UC175739  Rhododendron occidentale Joseph P. Tracy 1912-4-21 3573 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC200382  Rhododendron occidentale var. paludosum Doris K. Kildale 1926-8-22 2579 Humboldt French Camp on Orick-Martin's [Martins] Ferry road 731 Comment
  UC535710  Ribes Eleanor Armstrong 1934-8-23 1153 Humboldt Richardson Grove 121 Comment
  CAS-BOT-BC433144  Ribes Doris K. Kildale 1928-5-1 5989 Humboldt MacLellan [McClellan] Mountain 914 Comment
  UC1222379  Ribes binominatum Joseph P. Tracy 1950-7-1 18949 Humboldt Cold Springs Grouse Mountain 1432 Comment
  HSC100490  Ribes bracteosum Carl C. Marshall May 1886 194 Humboldt Near stream. Comment
  UC902061  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1943-3-21 17412 Humboldt Alton 30 Comment
  UC1198917  Ribes lacustre Joseph P. Tracy 1936-8-7 15095 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  HSC97311  Ribes laxiflorum M. Mesler 2007-3-23 744 Humboldt Near Trinidad, trail from Mill Creek to Elk Head, along creek near beach. 23 Comment
  JEPS49316  Ribes laxiflorum Joseph P. Tracy 1918-4-28 4890 Humboldt Northern Coast Ranges, Eureka, Ryan's Slough Ryan's Slough; Northern Coast Ranges, Eureka, Ryan's Slough 0 Comment
  UC56313  Ribes laxiflorum J. P. Tracy 1897-4-8 Humboldt Eureka Comment
  CAS-BOT-BC173363  Ribes lobbii L. R. Abrams 1918-6-14 7091 Humboldt Three Creeks Comment
  UC154120  Ribes lobbii Joseph P. Tracy 1908-6 2875 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC673202  Ribes lobbii Lincoln Constance, Reed C. Rollins 1942-5-11 2864 Humboldt 8 mi e Blue Lake (near summit); North Coast Ranges Comment
  HSC103132  Ribes lobbii M. Mesler 2009-9-7 816 Humboldt Trail to Mill Creek Lakes, above Hoopa 1646 Comment
  HSC102610  Ribes marshallii M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1597 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  CAS-BOT-BC206035  Ribes menziesii Alice Eastwood 1921-7-21 10654 Humboldt Carlotta Comment
  CAS-BOT-BC206038  Ribes menziesii Doris K. Kildale 1926-3-25 1627 Humboldt Liscom Hills, Lower Mad River 26 Comment
  HSC90028  Ribes menziesii Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-9 40 Humboldt Blue Lake Rd., 0.7 mi. E of its intersection with Railroad Ave. 76 Comment
  UC154124  Ribes menziesii J. P. Tracy 1909-2-14 2941 Humboldt immediate vicinity Eureka 0 Comment
  UC249627  Ribes menziesii Joseph P. Tracy 1921-4-4 5428 Humboldt near Korbel (at Camp Bauer); Northern Coast Ranges 30 Comment
  RSA0021770  Ribes menziesii H. E. Parks 1933-04 4402 Humboldt McNeils Creek, vicinity of Trinidad. Comment
  RSA0021773  Ribes menziesii E. R. Johnson 1929-08 1405 Humboldt 5 miles above Blue Lake on road to Willow Creek. 152 Comment
  BLMAR117  Ribes roezlii var. amictum Jennifer Anthony-Wheeler 1995-3-15 117 Humboldt King range, growing at far N end of Honeydew campground-open grassy floodplain 115 Comment
  CAS-BOT-BC198902  Ribes roezlii var. cruentum Kenneth Clark 1980-3-27 55 Humboldt North fork Dead Man's Gulch, Shelter Cove 82 Comment
  HSC57009  Ribes roezlii var. cruentum Overton, Butler 1979-7-24 9602 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  UC1198939  Ribes roezlii var. cruentum Joseph P. Tracy 1935-3-8 13729 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1222367 Image available Ribes sanguineum Joseph P. Tracy 1950-5-7 18649 Humboldt head South Yager River Comment
  CAS-BOT-BC144692  Ribes sanguineum var. glutinosum Carl B. Wolf 1927-8-29 1191 Humboldt 7 mi. s. of Ferndale & Capetown, Bear River Ridge-- Mt. Glen Comment
  HSC103217  Ribes sanguineum var. glutinosum Jade Paget-Seekins 2010-3-14 3 Humboldt McKinleyville, west end of Hiller Park. 10 Comment
  HSC48065  Ribes sanguineum var. glutinosum Thomas W. Nelson 1978-4-23 3883 Humboldt N of Samoa Comment
  HSC49912  Ribes sanguineum var. glutinosum Maralyn O'Meara 1973-2-19 189 Humboldt McKinleyville, Murray Rd. Comment
  HSC89424  Ribes sanguineum var. glutinosum P. A. Daly 1984-5-8 7 Humboldt Trinidad Head. 61 Comment
  HSC93267  Ribes sanguineum var. glutinosum Gordon Leppig 1998-3-25 723 Humboldt McKinleyville, Central Ave. 43 Comment
  SFV18511  Ribes sanguineum var. glutinosum M. Cavelti 2002-3-2 4 Humboldt Trinidad State Beach. 20 feet west of steps down to College Cove. 38 Comment
  UC902092  Ribes sanguineum var. glutinosum Joseph P. Tracy 1943-3-14 17408 Humboldt vicinity Carlotta 30 Comment
  HSC103195  Ribes sanguineum var. sanguineum Jade Paget-Seekins 2010-6-30 31 Humboldt Grouse Mountain on Forest Route 1 at the fork with Grouse Mountain Road. 1578 Comment
  HSC32267  Ribes viscosissimum J. O. Sawyer 1970-6-24 2276 Humboldt W of Mill Creek Lakes. 1677 Comment
  RSA135397  Romanzoffia californica Volney Rattan 1882-06 s.n. Humboldt Kneeland Prairie. Comment
  UC1239757  Romanzoffia californica Joseph P. Tracy 1935-5-12 13799 Humboldt along Trinity Hwy. Willow Creek Canyon 304 Comment
  HSC26449  Romanzoffia tracyi T. O. Osborne 1970-4-8 9 Humboldt Sugarloaf Rock, Cape Mendocino 76 Comment
  UC660024  Romanzoffia tracyi Lincoln Constance, Alan A. Beetle with Joseph P. Tracy 1940-5-18 2619 Humboldt ocean bluffs n. of Trinidad 30 Comment
  CAS-BOT-BC147434  Rosa californica Doris Kildale 1931-6-6 10869 Humboldt Gans Prairie, Orick - Weitchpec Road Comment
  HSC19645  Rosa canina Francis Winter 1960-4-24 Humboldt 1 mi. S of Hoopa Indian Reservation along Hoopa-Willow Creek Hwy. 152 Comment
  CAS-BOT-BC146476  Rosa gymnocarpa Alice Eastwood; John Thomas Howell 1937-6-23 4798 Humboldt Near Dinsmores Comment
  CAS-BOT-BC146489  Rosa gymnocarpa Doris Kildale Gillespie 1931-6-7 10623 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  POM117575  Rosa gymnocarpa Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  UC467681  Rosa gymnocarpa Harley P. Chandler May 1901 1265 Humboldt Tom Bair's North Coast Ranges, Redwood Creek 152 Comment
  CAS-BOT-BC146837  Rosa nutkana Doris K. Kildale 1927-5-14 3202 Humboldt Big Lagoon Comment
  POM92406  Rosa nutkana L. R. Abrams 1922-06 8242 Humboldt Near South Bay. Comment
  UC1541251  Rosa nutkana var. nutkana H. E. Parks June 1933 4450 Humboldt near Bolling Grove; Eel River Comment
  UC183612  Rosa nutkana var. nutkana Joseph P. Tracy 1912-7 3753 &3985 Humboldt Eureka Northern Coast Region 0 Comment
  CAS-BOT-BC148342  Rosa pisocarpa Joseph P. Tracy 1947-7-5 17813 Humboldt Trinity Summit, near Box Camp in open fir timber. 1524 Comment
  JEPS45698  Rosa pisocarpa Joseph P. Tracy 1925-6-7 7079 Humboldt near the South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC154494  Rosa pisocarpa Harley P. Chandler June 1901 1544 Humboldt Klamath River North Coast Ranges 457 Comment
  CAS-BOT-BC148222  Rosa spithamea Volney Rattan 1883-6-1 s.n. Humboldt Trinity River, Coast Mts. North of San Francisco Bay Comment
  BLMAR469  Rubus leucodermis Jennifer Anthony-Wheeler 2004-11-8 469 Humboldt Titlow Hill, growing along Titlow Hill road off Hwy 300 914 Comment
  UC467840  Rubus leucodermis Joseph Burtt Davy and Walter C. Blasdale 1899-5 5423 Humboldt near Hubbards Station (nw California); near Hubbards Station Comment
  HSC70811  Rubus parviflorus Gail Newton 1980-7-23 1748 Humboldt Near Packsaddle Ridge 1463 Comment
  HSC74809  Rubus parviflorus Gail Newton 1980-7-22 1689 Humboldt Near Devils Backbone 1545 Comment
  HSC99433  Rubus parviflorus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 82 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SEINET8254189  Rubus parviflorus Doris K. Gillespie 1938-8-6 15397 Humboldt Eureka. Comment
  CHSC68502  Rubus spectabilis Vernon H. Oswald 1997-4-10 8315 Humboldt Clam Beach between Arcata and Trinidad. Bordering a creek on the back beach. 30 Comment
  HSC19676  Rubus spectabilis Lincoln Constance 1934-6-2 780 Humboldt Bull Creek Rd. to mouth of Bull Creek, top Bull Creek Comment
  HSC19683  Rubus spectabilis D. E. Anderson 1962-3-31 1961 Humboldt Old Hwy. 101, E side of Freshwater Lagoon Comment
  HSC34629  Rubus spectabilis A. M. Montalvo 1975-4-9 203 Humboldt Arcata Community Forest about .25 mi. up Trail #3 46 Comment
  JEPS44771  Rubus spectabilis Joseph P. Tracy 1923-4-15 6192 Humboldt at Berry's Northern Coast Ranges, Redwood Creek (Redwood Creek) 274 Comment
  RSA247219  Rubus spectabilis Gary D. Wallace, Larry E. DeBuhr 1972-3-29 1010 Humboldt Prairie Creek Redwoods St. Pk. near the headquarters. Comment
  HSC56343  Rubus ursinus Griswold, Butler 1979-7-10 6268 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UCD17612  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 053 Humboldt California. Humboldt County: 6 miles from Dyerville junction of U.S. 101, on road to Weitchpec. Comment
  UCD17615  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 049 Humboldt California. Humboldt County: 15.3 miles north of Ettersburg on road to Dyerville. Comment
  UCD17840  Rubus ursinus H. Olmo 8-10 May 1962 62- 38 A Humboldt California. Humboldt County: along Route 36 between Grizzly Creek Redwoods State Park and Dinsmore. Comment
  UCD17844  Rubus ursinus H. Olmo 8-10 May 1962 62- 31 Humboldt California. Humboldt County: 9 miles east of Carlotta. Comment
  SEINET5710897  Rudbeckia occidentalis Lowell E. Urbatsch 1990-1 6799 Humboldt From Calif. 99 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork; take the left fork (not leading to Denny but to Waterman Ridge and Zeigler Point) and travel 6.7 miles down this road to another fork. Take the rt. fork (away from the rd. leading to Waterman Ridge and Willow Creek). On this rd. (FD 7 NO4) travel 1.5 miles to another fork; continue on 7No4N (the left fork) for 7.4 miles. At this point, take 7NO4N, the rd to Groves Prairie. The collection site is about 50m to the right near the Groves Prairie Creek sign. The site is 17.9 miles from Hawkins Bar just beyond mile marker 9.; Groves Prairie Comment
  SEINET5710905  Rudbeckia occidentalis Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6104 Humboldt From California 299 at Hawkins Bar (In Trinity County), turn onto the road to Denny and travel 1.7 miles down this road toa fork in the road. Take the lefthand road (leading to Waterman Ridge, Zeigler Point) and travel 6.7 miles down this road to antoher fork in the road. Take the right fork (away from thr road leading to Waterman Ridge and Willow Creek). On the road (7NO4), travel 1.5 miles to another fork; continue on 7NO4 (the left fork) for 7.4 miles. At this point, take 7 NO4N, the road to Groves Prairie. The collection site is a short distance up the road.; Groves Prairie Comment
  HSC55036  Rumex acetosella Gilbert Muth 1979-7-31 11488 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  HSC55264  Rumex acetosella Overton, Butler 1979-8-2 12614 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  RSA226607  Rumex acetosella Norman Dennis 1965-6-19 134 Humboldt 1/4 mile S and 1 mile E of the jct of Barry Ridge Road and the Eureka-Bridgeville country road, along Ashfield Ridge Road, 5 miles SE of Kneeland. 793 Comment
  RSA256728  Rumex acetosella Linda M. Barker 1974-5-11 171 Humboldt Redwood National Park, Bald Hills road. 549 Comment
  UCD100972  Rumex acetosella Collector unknown Date unknown s.n. Humboldt location unknown. Comment
  HSC39980  Rumex crispus Linda M. Barker 1976-6-22 1622 Humboldt 3 mi. W of Arcata Comment
  JEPS39873  Rumex occidentalis Milo S. Baker 1923-8-4 177 Humboldt s end Stone Lagoon Comment
  UC672926  Rumex occidentalis Joseph P. Tracy 1932-7-20 10730 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1222605  Rupertia physodes Joseph P. Tracy 1951-7-26 19589 Humboldt extreme head Redwood Creek (n side of mountain); Board Camp Mountain 1541 Comment
  RSA249519  Ruppia maritima Robert F. Thorne, Percy C. Everett 1965-8-7 35208 Humboldt Samoa Peninsula. 0 Comment
  HSC100868  Rytidosperma penicillatum J. P. Smith Sep 2005 12151 Humboldt Trinidad Head. 61 Comment
  HSC69636  Salicornia depressa R. Kalal 1980-5-8 22 Humboldt Foster Rd. near Arcata 6 Comment
  SEINET10937633  Salicornia virginica Mary Susan Taylor 1982-10-24 Taylor 5176 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  CHSC79815  Salix alba Gordon Leppig; Sylvia Leppig, Kai Leppig 2000-4-16 1297 Humboldt Arcata, Arcata Marsh and Wildlife Sanctuary, West bank of Hauser Marsh. UTM zone 10, N4525 E407. 1 Comment
  CAS-BOT-BC132669  Salix coulteri Joseph P. Tracy 1932-7-31 10286 Humboldt Eel River, Alton to Fortuna 15 Comment
  UC1173608  Salix eastwoodiae Joseph P. Tracy 1935-7-26 14267 Humboldt meadows at Water Dog Lakes; Trinity Summit 1828 Comment
  CAS-BOT-BC103808  Salix exigua W. R. Dudley 1899-6-21 s.n. Humboldt Near forks of Eel River by Dyerville Comment
  CAS-BOT-BC103815  Salix exigua Harold E. Parks 1931-5-14 0961 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  CAS-BOT-BC103818  Salix exigua Harold E. Parks 1931-5-14 0964 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  POM361045  Salix exigua Carleton R. Ball, Harold E. Parks, Joseph P. Tracy 1932-5-17 1335 Humboldt Above Trinity River. 1 mile below bridge on Trinity Hwy. 152 Comment
  RSA44504  Salix exigua H. M. Pollard 1947-8-21 s.n. Humboldt Klamath River [??] Boyle Creek. Orleans Region. Comment
  UC511979  Salix exigua var. hindsiana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1248 Humboldt floodplain of Eel R. at Fernbridge 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-BC107748  Salix hookeriana Harold E. Parks 1931-5-12 956 Humboldt Samoa, Humboldt Bay Comment
  CAS-BOT-BC107775  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-12 1246 Humboldt Gravelly floodplain of Van Dezen River at Blue Slide 91 Comment
  HSC40862  Salix hookeriana Linda M. Barker 1976-4-30 1422 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata Comment
  HSC90764  Salix hookeriana Gail Newton 1983-6-5 3641 Humboldt Elk River Wildlife Area, Eureka Comment
  JEPS12963  Salix hookeriana Joseph P. Tracy 1931-9-20 9685 Humboldt Trinidad Northern Coast Region 60 Comment
  UC275500  Salix hookeriana Joseph P. Tracy 1925-2-1 6930 Humboldt lowlands near Salmon Creek Corners (around Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  UC275504  Salix hookeriana Joseph P. Tracy 1925-11-8 7312 Humboldt Fieldbrook Northern Coast Ranges, Fieldbrook 60 Comment
  UC481277  Salix hookeriana Harold E. Parks 1931-8-1 1053 Humboldt Little River Lagoon Comment
  UC490473  Salix hookeriana Joseph P. Tracy 1932-6-26 10262 Humboldt Valley of S. Yager Creek Northern Coast Ranges, Valley of S. Yager Creek 762 Comment
  UC512096  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1213 Humboldt 1 mi n Samoa (in pine barrens near the coast) Comment
  UC518895  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 9 Humboldt Samoa Comment
  JEPS13097  Salix laevigata Joseph P. Tracy 1935-5-25 13886 Humboldt Dobbyn Creek 152 Comment
  UC517961  Salix laevigata M. S. Jussel 1931-5-1 Humboldt Sylvandale Comment
  UCSB10844  Salix laevigata Bracelin, H. 1931-5-1 Humboldt Sylvandale, between Miranda and Meyers, South Fork of Eel River Comment
  HSC19987  Salix lasiandra H. E. Parks 1931-5-14 959 Humboldt Lower Van Duzen River 0 Comment
  UC1196587  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1927-11-13 8394 Humboldt near mouth Little R.; Northern Coast Ranges, Little R. 6 Comment
  UC1196590  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1919-9-14 5205 Humboldt near Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC492482  Salix lasiandra subsp. lasiandra Harold E. and Susan T. Parks 1932-5-12 1150 Humboldt swamp near bridge at mouth of Maple Creek (Big Lagoon); Big Lagoon Comment
  CAS-BOT-BC128192  Salix lasiandra var. lasiandra Harold E. Parks; Susan T. Parks 1932-5-12 1150 Humboldt In swamp near bridge at mouth of Maple Creek, Big Lagoon Comment
  CAS-BOT-BC107583  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-13 1254 Humboldt Floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC107625  Salix lasiolepis Joseph P. Tracy 1934-3-25 13167 Humboldt Blue Slide, on Van Duzen River 91 Comment
  HSC96365  Salix lasiolepis Gordon Leppig 1999-4-15 1123 Humboldt Big Lagoon County Park, Big Lagoon Bog, E fen edge 3 Comment
  JEPS12931  Salix lasiolepis Joseph P. Tracy 1931-5-31 9328 Humboldt Redwood Creek at Berry's; Northern Coast Ranges 274 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
  UC1196621  Salix lasiolepis Joseph P. Tracy 1926-9-19 7802 Humboldt Valley of S. Yager Creek Northern Coast Ranges, Valley of S. Yager Creek 762 Comment
  UC1196649  Salix lasiolepis Joseph P. Tracy 1933-11-29 13129 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC469408  Salix lasiolepis Joseph P. Tracy 1927-3-27 7869 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC469420  Salix lasiolepis Joseph P. Tracy 1929-10-20 8681 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 701 Comment
  UC469424  Salix lasiolepis Joseph P. Tracy 1931-8-16 9614 Humboldt vicinity of Garberbille; Northern Coast Ranges 121 Comment
  UC469435  Salix lasiolepis Joseph P. Tracy 1931-10-11 9718 Humboldt near mouth Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC490549  Salix lasiolepis Joseph P. Tracy 1932-4-24 9804 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC506374  Salix lasiolepis Joseph P. Tracy 1933-4-9 10964 Humboldt Bridgeville 228 Comment
  UC506381  Salix lasiolepis Joseph P. Tracy 1933-2-26 10913 Humboldt Miranda Northern Coast Ranges, South Fork of Eel River 121 Comment
  UC512031  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1328 Humboldt e Redwood Creek (w slope of mt., on Trinity Hwy); Berry's Mountain 762 Comment
  CAS-BOT-BC107287  Salix lasiolepis var. bigelovii Joseph P. Tracy 1933-3-19 10934 Humboldt along Van Duzen R. 228 Comment
  CAS-BOT-BC107412  Salix lasiolepis var. lasiolepis Alice Eastwood 1907-4-21 24 Humboldt Trinidad Comment
  CAS-BOT-BC125639  Salix melanopsis Harold E. Parks 1931-8-25 01060 Humboldt Blue Slide, Van Duzen River 90 Comment
  JEPS12970  Salix melanopsis Joseph P. Tracy 1931-9-19 9682 Humboldt Van Duzen River Alton; Northern Coast Region 30 Comment
  JEPS13080  Salix melanopsis Joseph P. Tracy 1939-8-5 16393 Humboldt Van Duzen River at Dinsmore's 737 Comment
  JEPS14789  Salix melanopsis Joseph P. Tracy 1933-6-11 12551 Humboldt S. Fork Eel River near Miranda; Northern Coast Ranges 60 Comment
  POM219685  Salix melanopsis H. E. Parks 1931-5-14 965 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  SBBG22044  Salix melanopsis R. F. Thorne 1957-9-2 Humboldt branch of Eel River at Burlington State Park, just S of Weott Comment
  SD914  Salix melanopsis Harold E. Parks, Joseph P. Tracy 1931-5-17 972 Humboldt Mouth of Willow Creek at Trinity River 149 Comment
  SD922  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt East of Redwood Highway, 6 km south of Alton, flood plain of creek 20 Comment
  UC469458  Salix melanopsis Joseph P. Tracy 1931-9-19 9681 Humboldt Van Duzen R. Alton; Northern Coast Region, Van Duzen R. 30 Comment
  UC481169  Salix melanopsis Harold E. Parks 1931-8-25 1061 Humboldt Van Duzen R. Blue Slide; , Blue Slide 90 Comment
  UC512009  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1234 Humboldt 1 1/2 mi. e. Alton (floodplain of Van Duzen R.); Van Duzen R. 30 Comment
  UC512019  Salix melanopsis C. R. Ball, H. E. Parks, and J. P. Tracy 1932-5-17 1339 Humboldt pond at Willow Creek (Graham Ranch) near junction with Trinity R.; Willow Creek 152 Comment
  UC519369  Salix melanopsis Joseph P. Tracy 1933-7-22 12824 Humboldt S. Fork Eel R. at mouth of Bull Creek; Northern Coast Ranges, S. Fork Eel R. 45 Comment
  UC519373  Salix melanopsis Joseph P. Tracy 1933-5-20 12262 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  POM92416  Salix melanopsis L. R. Abrams 1922-6-25 8227 Humboldt 6 miles N of Garberville Comment
  SD977  Salix parksiana Harold E. Parks 1931-5-14 962 Humboldt Van Duzen River, between Alton and Carlotta, in river gravel. 14 Comment
  CAS-BOT-BC129173  Salix scouleriana H. E. Parks 1933-1-24 1352 Humboldt Spruce Cove (Parks Ranch), Trinidad Comment
  UC481353  Salix scouleriana Harold E. Parks 1931-5-12 955 a Humboldt pine barrens Samoa; Humboldt Bay, Samoa Comment
  UC512088  Salix scouleriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1219 Humboldt pine barrens near coast 1 mi. n. Samoa Comment
  CAS-BOT-BC128952  Salix sitchensis H. E. McMinn 1922-8-4 338 Humboldt Along Van Duzen River - 18 miles from Fortuna 6 Comment
  HSC38135  Salix sitchensis Thomas W. Nelson, James Nelson 1976-3-23 3280 Humboldt Van Duzen River at Grizzley Creek Comment
  HSC90748  Salix sitchensis Jean Hanson 1980-3-8 21 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC96587  Salix sitchensis Gordon Leppig 2003-2-4 1804 Humboldt NWR South Bay Unit 2 Comment
  UC1196716  Salix sitchensis Joseph P. Tracy 1926-2-21 7362 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC1196718  Salix sitchensis Joseph P. Tracy 1932-5-14 10063 Humboldt Scotia Bluffs Northern Coast Ranges, Scotia Bluffs 30 Comment
  UC481215  Salix sitchensis Harold E. Parks 1931-5-20 995 Humboldt Mad R. Blue Lake; , Blue Lake 15 Comment
  UC490533  Salix sitchensis Joseph P. Tracy 1932-7-16 10646 Humboldt open ground at Corral Prairie; Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  UC1196609  Salix tracyi Joseph P. Tracy 1934-9-30 13680 Humboldt Van Duzen River at Bridgeville 198 Comment
  HSC79479  Sambucus racemosa var. racemosa Kenneth Clark 1980-3-27 562 Humboldt N fork of Dead Man's Gulch. 73 Comment
  UCSB16744  Sambucus racemosa var. racemosa Muller, Katherine 1954-6-20 Humboldt 3 mi. S. of Scotia Comment
  HSC99378  Sanicula bipinnata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 27 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  BLMAR128  Sanicula crassicaulis Jennifer Anthony-Wheeler 1996-4-3 128 Humboldt Richardson ' s grv., growing along rdside in doug-fir forest 518 Comment
  HSC55755  Sanicula graveolens G. L. Clifton, Terry Griswold 1979-7-26 10289 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC48752  Sanicula graveolens Brad Klipfel 1973-6-16 78 Humboldt Along ridge trail SE of N Trinity Mountain 1829 Comment
  HSC73546  Sanicula tuberosa Gail Newton 1980-7-14 1471 Humboldt Near Last Chance Ridge. 1219 Comment
  UC577374  Satureja douglasii Joseph P. Tracy 1923-6-20 6315 Humboldt White Thorn Valley 304 Comment
  CAS-BOT-BC441186  Saxifraga mertensiana Lincoln Constance; Reed C. Rollins 1942-5-11 2869 Humboldt Three miles west of East Fork of Willow Creek Comment
  UC161581  Saxifraga mertensiana Joseph P. Tracy 1911-6-4 3217 Humboldt 5 mi from The Coast (along Little River); Northern Coast Region, Little River 121 Comment
  HSC7443  Schoenoplectus americanus D. E. Anderson 1961-9-9 1792 Humboldt Along S end of Hwy. 101 causeway over Big Lagoon. Comment
  CAS-BOT-BC111700  Schoenoplectus pungens var. longispicatus 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
  HSC44816  Schoenoplectus tabernaemontani B. Marcot 1977-7-12 Humboldt Comment
  UC183681  Scirpus microcarpus Joseph P. Tracy 1914-9-13 4628 Humboldt at Eureka; Northern Coast Region, at Eureka 0 Comment
  HSC48781  Scirpus microcarpus Brad Klipfel 1974-5-11 336 Humboldt SW side of Big Lagoon Comment
  HSC62974  Scirpus microcarpus J. M. DiTomaso 1979-5-16 1014 Humboldt Corner of LK Wood and 14th St., Arcata Comment
  HSC7273  Scirpus microcarpus R. S. White 1965-5-18 87 Humboldt 0.5 mi. off Hwy. 101 on road to Crannel Comment
  HSC79367  Scirpus microcarpus Kenneth Clark 1980-4-18 601 Humboldt Above Dead Man's Gulch, in upper meadow 213 Comment
  RSA246886  Scirpus microcarpus Robert F. Thorne, Percy C. Everett 1965-8-9 35320 Humboldt Clam Beach County Park: along highway. 3 Comment
  HSC15632  Scoliopus bigelovii F. B. Plett 1963-4-24 30 Humboldt 1.5 mi. N of Trinidad along Old Hwy. 101 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
  HSC66221  Scoliopus bigelovii N. J. Miller 1977-3-5 1 Humboldt Camp Bauer Park, 100 yds. E of baseball field, 0.25 mi. NE of Korbel 58 Comment
  SEINET12050496  Scoliopus bigelovii F. H. Utech 1988-1 88 -292 Humboldt 1.5 mi N of Bridgeville on Road from Bridgeville to Kneeland, along Brown Creek 350 Comment
  HSC21129  Scrophularia californica D. E. Anderson 1961-8-11 1734 Humboldt Redwood preserve E of HSU campus 30 Comment
  RSA475245  Scrophularia californica Lyman D. Benson 1938-7-11 385 Humboldt Weott Ranger Station. Seaward N Coast Mtn range, S Fork Eel River. 61 Comment
  UC1239705  Scutellaria antirrhinoides Joseph P. Tracy 1927-7-24 8296 Humboldt Mattole Valley 152 Comment
  UC154261  Scutellaria antirrhinoides M. H. Manning 1900-1 Humboldt near Hupa Comment
  UC1239710  Scutellaria antirrhinoides Joseph P. Tracy 1919-5-31 5154 Humboldt near Willow Creek (at w side of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  HSC35620  Scutellaria californica Thomas W. Nelson, B. Reinhardt 1975-7-30 2115 Humboldt E of Pilot Rock Comment
  UC1713620  Scutellaria californica Joseph P. Tracy 1937-7-19 15453 Humboldt nw slope of Buck Mountain 914 Comment
  UC32583  Scutellaria siphocampyloides Chesnut and Drew 1888-7-29 Humboldt Louse Creek Comment
  UC577338  Scutellaria siphocampyloides Joseph P. Tracy 1932-5-17 10083 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC40703  Sedum laxum subsp. heckneri Thomas W. Nelson, Jane P. Nelson 1976-7-1 2898 Humboldt Along ridge N of Bear Creek 1463 Comment
  HSC41479  Sedum laxum subsp. heckneri M. A. Baker 1977-6-13 383 Humboldt 4 mi. S of new confluence of the Klamath River and Bluff Creek Comment
  HSC70725  Sedum radiatum Gail Newton 1980-7-14 1520 Humboldt Near Deadman Ridge 1097 Comment
  CAS-BOT-BC59127  Sedum spathulifolium Henry M. Pollard 1948-7-28 s.n. Humboldt River road near Orleans Comment
  RSA0081472  Sedum spathulifolium C. B. Wolf 1934-7-2 5858 Humboldt One mile from Bald Mt. on road to Korbel. 762 Comment
  HSC89507  Sedum spathulifolium var. pruinosum M. Roantree 1985-6-11 89 Humboldt W side of Trinidad Head, W of trail Comment
  HSC48309  Sedum spathulifolium var. spathulifolium R. Sutherland 1978-4-22 1 .22478 Humboldt Along King's Crest Trail 1098 Comment
  CAS-BOT-BC62182  Selaginella oregana Mrs. A. W. Kildale 1925-1-26 s.n. Humboldt Hungry Hollows, 5-6 mi east of Korbel Comment
  JEPS307  Selaginella oregana Joseph P. Tracy 1928-8-29 8426 Humboldt Prairie Creek; Northern Coast Ranges 152 Comment
  UCD135494  Senecio glomeratus Linda M. Barker 1976-7-5 1634 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC57419  Senecio integerrimus G. L. Clifton, Griswold 1979-7-26 10182 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  HSC70329  Senecio integerrimus M. A. Baker 1980-6-8 1884 Humboldt Near Buck Flat. 1554 Comment
  CAS-BOT-BC364022  Senecio integerrimus var. major Doris K. Kildale 1928-5-19 5173 Humboldt Chalk Mountain Comment
  SEINET9305918  Senecio serra Unknown 1948-9-3 1857 Humboldt Near jct of Friday Ridge Rd and Horse Mtn-Grouse Mtn Rd. Growing on the borders of a pond near Clear Lake. Herbarium, Carnegie Museum (CM), Pittsburgh, PA. Comment
  HSC74692  Senecio sylvaticus Gail Newton 1981-7-22 2266 Humboldt Near Bug Creek 1375 Comment
  CAS-BOT-BC364222  Senecio sylvaticus L. R. Abrams 1916-7-11 6007 Humboldt Near Grizzly Creek Comment
  CAS-BOT-BC364329  Senecio triangularis Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  UC180178  Senecio triangularis Joseph P. Tracy 1914-7-4 4539 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges, High Prairie on Bald Mountain 1066 Comment
  UC1199237  Senecio vulgaris Joseph P. Tracy 1918-4-21 4880 Humboldt on old Kneeland Prairie Road near Newell's Camp (around Humboldt Bay); Northern Coast Ranges, around Humboldt Bay 304 Comment
  CAS-BOT-BC85835  Sequoia sempervirens Dr. A. Kellogg; W. G. W. Harford 1868-1-1 960 Humboldt unspecified Comment
  JEPS48280  Sequoia sempervirens Mrs. Fay Howard 1929-10-5 Humboldt about 1 mi n Pepperwood (down the river) Comment
  SDSU2036  Sequoia sempervirens Wayne A. Bemis 1963-11-29 245 Humboldt 1289 D St. Acarta. 55 Comment
  UC1530712  Sequoia sempervirens R. W. Becking 1984-9-23 Humboldt Federation of Women's Grove Humboldt Co. Weott, Humboldt Redwoods State Park, Federation (Humboldt Co. Weott <sic>, Humboldt Redwoods State Park) Comment
  UC1145167  Setaria viridis Joseph P. Tracy 1948-7-26 18078 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  HSC1093  Sherardia arvensis W. Lanphere 1937-2-16 Humboldt H.S.C. Campus Comment
  UC1541655  Sherardia arvensis Harold E. Parks Jun 1935 4995 Humboldt Trinidad; Spruce Cove Comment
  HSC79421  Sherardia arvensis Kenneth Clark 1980-4-18 598 Humboldt Above Dead Man's Gulch 183 Comment
  HSC102917  Sidalcea M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1094 Humboldt Patterson Meadows 1555 Comment
  UC668135  Sidalcea malachroides Joseph P. Tracy 1938-6-7 15860 Humboldt 5 mi se Korbel; Canyon Creek 152 Comment
  HSC100572  Sidalcea malviflora Carl C. Marshall Jun 1887 445 Humboldt East branch. Comment
  UC1197974  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1935-6-23 13978 Humboldt French Camp Ridge 1066 Comment
  HSC69889  Sidalcea malviflora subsp. nana Thomas W. Nelson, Jane Nelson 1977-7-30 3663 Humboldt Beside State Rte. 36, 1 mi. E of Dinsmore. 732 Comment
  UC665632  Sidalcea malviflora subsp. patula H. E. Parks May, 1940 24177 Humboldt Dow's Prairie 30 Comment
  UC205469  Sidalcea oregana subsp. eximia Joseph P. Tracy 1920-7-25 5344 Humboldt Dows Prairie Northern Coast Region, around Humboldt Bay (around Humboldt Bay) 60 Comment
  UC205642  Sidalcea oregana subsp. eximia Joseph P. Tracy 1920-7-25 5344 Humboldt Dows Prairie Northern Coast Region, around Humboldt Bay Comment
  UC668132  Sidalcea oregana subsp. spicata Joseph P. Tracy 1937-8-12 15653 Humboldt Snow Camp 1402 Comment
  RSA95266  Sidalcea oregana subsp. spicata F. W. Peirson 1923-7-11 3778 Humboldt Along road 7 miles north of Arcata. Comment
  UC1198367  Silene antirrhina Joseph P. Tracy 1919-5-31 5168 Humboldt along Willow Creek ((Tributary of Trinity River) near its mouth); Northern Coast Ranges, along Willow Creek 152 Comment
  JEPS50977  Silene californica W. L. Jepson 1902-7-1 1962 Humboldt Hupa Road , Hupa Road (Redwood Creek) Comment
  UC465673  Silene californica Mrs. M. H. Manning 1900-1 Humboldt Hoopa Valley Comment
  POM192570  Silene californica H. E. Parks 1930-05 0751 Humboldt Vicinity of Hydesville. Comment
  RSA47143  Silene californica Doris K. Kildale 1925-3-28 510 Humboldt Fleener Creek - hillside at mouth of valley on coast. Comment
  UC419028  Silene californica H. E. Parks May 1930 751 Humboldt vicinity Hydesville; vicinity of Hydesville Comment
  UC668097  Silene campanulata Joseph P. Tracy 1933-7-25 12871 Humboldt Grouse Mountain 1524 Comment
  UC8435  Silene campanulata subsp. campanulata Bolander 1866-1 6517 Humboldt Red Mountain Comment
  UC161034  Silene gallica Joseph P. Tracy 1904-7-24 2124 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  HSC31197  Silene grayi D. E. Anderson 1972-6-20 5755 Humboldt Along the N slope of Horse Mtn. Comment
  CAS-BOT-BC181226  Silene hookeri subsp. bolanderi Doris K. Kildale 1926-6-27 2204 Humboldt Laribee Valley 701 Comment
  CAS-BOT-BC389064  Silene laciniata subsp. californica Henry M. Pollard 1948-7-27 s.n. Humboldt Near mouth of Red Cap Creek - near Orleans Comment
  UC161208  Silene menziesii Chesnut and Drew 1888-7-23 Humboldt Hy-Am-Pom Comment
  CHSC19509  Sisyrinchium californicum Norman Dennis 1965-6-3 142 Humboldt Sphagnum bog at Big Lagoon County Park, southwest corner of Big Lagoon. Comment
  HSC27000  Sisyrinchium californicum Brad Klipfel 1973-8-17 271 Humboldt Big Lagoon Park, N of Trinidad Comment
  JEPS62111  Smilacina racemosa W. L. Jepson 1932-7-30 16449 Humboldt Bull Creek 121 Comment
  UC666973  Smilacina racemosa Joseph P. Tracy 1938-6-13 15908 Humboldt Horse Mountain 1432 Comment
  UC275554  Smilacina stellata Joseph P. Tracy 1924-9-7 Humboldt Table Bluff Northern Coast Ranges 182 Comment
  SBBG6657  Solanum americanum H. and M. Dearing 1939-5-25 3431 Humboldt near Samoa Comment
  UCD126873  Solanum aviculare Robert F. Thorne; P. Everett 1965-8-5 35160 Humboldt Samoa Dunes, at edge of Humboldt Bay. 3 Comment
  UC1196154  Solanum umbelliferum Joseph P. Tracy 1937-7-2 15406 Humboldt head of Little Hors-Linto Creek (Trinity Summit); , Little Hors-Linto Creek 1371 Comment
  HSC58149  Solidago elongata G. L. Clifton, Griswold 1979-8-2 12196 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  CHSC423  Solidago spathulata M. Anthony 1960-5-1 Humboldt Coastal. Comment
  CHSC55885  Solidago spathulata L. P. Janeway 1987-7-31 2545 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. On dunes. 3 Comment
  UCSC000787  Solidago spathulata H. L. Person 1932-7-20 s.n. Humboldt Eureka, Field Brook, Tinriesia Forest Comment
  HSC35992  Solidago velutina subsp. californica Thomas W. Nelson, James Nelson 1975-9-1 2190 Humboldt Eel River at High Rock State Park Comment
  UCSB30614  Solidago velutina subsp. californica Edwards, David 1974-8-1 Humboldt About 50 ft. N. of junction of the Mad River and Puter Creek, on the east bank of Mad River, ca. 2 mi. SW of Korbel Comment
  SEINET200989  Sonchus asper J. P. Tracy 1903-8-2 1925 Humboldt Immediate vicinity of Eureka. 0 Comment
  HSC21343  Sparganium angustifolium D. E. Anderson 1963-9-29 2854 Humboldt Fish Lake. Comment
  UC176175  Sparganium erectum subsp. stoloniferum Joseph P. Tracy 1912-10-20 3987 Humboldt Loleta Northern Coast Ranges, Eel Valley (lower Eel Valley) 15 Comment
  CAS-BOT-BC235371  Spartina densiflora W. A. Silveus 1938-7-10 2966 Humboldt Eureka Comment
  RSA246888  Spergularia macrotheca R. F. Thorne, Percy C. Everett 1965-8-8 35277 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  HSC70955  Spergularia rubra Thomas W. Nelson 1977-6-15 3430 Humboldt Along FS Rd. 6N01 about 1 mi. S of junction with FS Rd. 5N10 1372 Comment
  UC13088  Spiraea douglasii Harley P. Chandler May 1901 1197 Humboldt Humboldt Bay; North Coast Ranges 30 Comment
  UC13535  Spiranthes romanzoffiana Chesnut and Drew 1888-8-11 Humboldt Eureka Comment
  UC666998  Spiranthes romanzoffiana Joseph P. Tracy 1930-6-15 8766 1/2 Humboldt summit of ridge between Dobbyn Creek and Alder Point (near Alder Point) Comment
  HSC62698  Spirodela polyrhiza Michelle Stevens 1979-5-18 120 Humboldt Ponds across from Clam Beach 0 Comment
  HSC100607  Spraguea umbellata Carl C. Marshall Jun 1885 26 Humboldt S Fork Mtn. Comment
  UC630639  Stachys ajugoides var. ajugoides Joseph P. Tracy 1939-6-23 16312 Humboldt Park's garden Trinidad 3 Comment
  UCLA71124  Stachys ajugoides var. rigida H. Lewis 1940-7-3 Humboldt Founders Tree Humboldt State Park Comment
  UC1239727  Stachys chamissonis Joseph P. Tracy 1906-6-24 2496 Humboldt region about Humboldt Bay (s slope of Humboldt Hill); Northern Coast Region 0 Comment
  JEPS63025  Stachys chamissonis Milo S. Baker 1923-7-23 124 Humboldt near Ferndale; North Coast Comment
  RSA22551  Stachys emersonii H. E. Parks, S. T. Parks 1937-07 24025 Humboldt Spruce Cove, Trinidad. Comment
  HSC46038  Stachys mexicana Catherine Chin 1978-5-5 55 Humboldt 17.4 mi. S of Ferndale on Mattole Rd. 91 Comment
  HSC12712  Stellaria media M. J. Athey 1970-11-20 1 Humboldt Along 1st. St. in Westhaven, Trinidad Comment
  HSC40608  Stipa lemmonii Thomas W. Nelson 1976-6-14 2702 Humboldt S of Lassic Peak (Signal Peak) 1646 Comment
  SEINET5585763  Stipa occidentalis Percy Train 1937-1 515 Humboldt Canyon Creek summit, east slope Santa Rosa Range 2195 Comment
  HSC102164  Stipa occidentalis var. californica M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1074 Humboldt Patterson Meadows 1566 Comment
  HSC58058  Streptanthus tortuosus G. L. Clifton, Terry Griswold 1979-8-1 11928 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  UC162599  Streptanthus tortuosus Harley P. Chandler June 1901 1441 Humboldt Klamath River North Coast Ranges 304 Comment
  UC161577  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy July 1908 2764 Humboldt ridge between Van Duzen and Mad Rivers near Low Gap; Northern Coast Ranges 914 Comment
  UC302043  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1926-5-15 7477 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC102122  Streptanthus tortuosus var. tortuosus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1026 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  RSA249439  Streptopus amplexifolius D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5606 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  UC1103500  Streptopus amplexifolius var. americanus Joseph P. Tracy 1930-7-17 8998 Humboldt McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC269567  Symphoricarpos albus var. laevigatus Carl B. Wolf 1930-10-29 1782 Humboldt Old Coast Road at Honeydew Post Office 152 Comment
  HSC35348  Symphoricarpos albus var. laevigatus A. M. Montalvo, J. D. Ackerman 1975-6-22 481 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36 Comment
  CAS-BOT-BC269696  Symphoricarpos mollis Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC58035  Symphoricarpos mollis G. L. Clifton 1979-7-31 11870 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC76249  Symphoricarpos mollis Denis Kearns 1981-7-23 414 Humboldt Near Whiteys Peak. 1524 Comment
  HSC49139  Symphyotrichum chilense J. O. Sawyer, R. J. Cole 1978-10-10 3319 Humboldt W of Coast Guard road at intersection with Samoa Bridge Comment
  HSC90472  Symphyotrichum chilense Jean Hanson 1980-8-28 125 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka. W end of island between dikes. Comment
  UC1199311  Symphyotrichum chilense Joseph P. Tracy 1939-9-4 16475 Humboldt Buck Mt., nw slope Buck Mt. 762 Comment
  UC892758  Symphyotrichum chilense Milo S. Baker 1931-7-17 5408 Humboldt along Redwood Hwy a few miles s of Eureka Comment
  CAS-BOT-BC99005  Symphyotrichum eatonii Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC581687  Symphyotrichum hendersonii Joseph P. Tracy 1937-8-12 15634 Humboldt Snow Camp 1402 Comment
  SEINET4335925 Image available Symphyotrichum subspicatum H. E. Parks, M. Jackson 24197 Humboldt Big Lgaoon Comment
  JEPS26388  Synthyris reniformis Joseph P. Tracy 1941-4-8 16810 Humboldt Willow Creek Canyon, along Trinity Highway Willow Creek Canyon 609 Comment
  UC1198052  Synthyris reniformis Joseph P. Tracy 1942-6-23 17230 Humboldt Trinity Summit near Box Camp; Trinity Summit 1524 Comment
  CAS-BOT-BC221913  Taeniatherum caput-medusae F. A. Weatherbee 1960-6-22 s.n. Humboldt Ft. Baker Ranch, Eureka Comment
  CAS-BOT-BC376723  Tanacetum bipinnatum M. Louise Hutchinson 1913-1-1 s.n. Humboldt Eureka Comment
  HSC6252  Tanacetum bipinnatum D. B. Bader 1963-5-1 2 Humboldt Second of Clam Beach Lagoons, W of Hwy. 101, along R.R. tracks Comment
  UC581791  Tanacetum vulgare H. E. Parks and Joseph P. Tracy 1932-9-24 10809 Humboldt Prairie Creek 91 Comment
  RSA0049665  Taraxacum laevigatum Dean Wm. Taylor 2011-5-4 21112 Humboldt Alderpoint Road in the vicinity of the Snowline Fox Farm (Larabee Valley quadrangle placename), vicinity of the road crossing of Knack Creek 341 Comment
  SEINET11798896  Taraxacum laevigatum J. P. Tracy 1948-1 17973 Humboldt Trinity River at Willow Creek Comment
  UC314623  Taraxia ovata Joseph P. Tracy 1924-3-16 6627 Humboldt Garberville Northern Coast Ranges 121 Comment
  UC162623  Tauschia kelloggii Joseph P. Tracy 1911-7-4 3289 Humboldt w side of Trinity River near Willow Creek; Northern Coast Ranges, w side of Trinity River, Willow Creek 182 Comment
  HSC38097  Taxus brevifolia Thomas W. Nelson, James Nelson 1976-5-30 2619 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CAS-BOT-BC85212  Taxus brevifolia G. A. Coleman 1901-7-28 s.n. Humboldt Near Baise Creek Comment
  UC1198891  Tellima grandiflora Joseph P. Tracy 1949-6-6 18311 Humboldt ne of Hawkins Bar (Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  RSA167304  Tellima grandiflora Joseph P. Tracy 1950-6-8 18722 Humboldt Near Mountain Glen Ranch, summit of ridge, 7 miles south of Ferndale. Bear River Ridge. 610 Comment
  UC1196943  Tetrapteron graciliflorum Joseph P. Tracy 1902-6-3 1673 Humboldt near Fruitland; Northern Coast Ranges 609 Comment
  HSC92244  Thermopsis macrophylla var. macrophylla Clare Golec 1995-7-6 Humboldt 701 Comment
  HSC100462  Thlaspi alpestre Carl C. Marshall Apr 1887 360 Humboldt Supply Creek, near Hoopa. Comment
  UC1222645  Thlaspi californicum Joseph P. Tracy 1951-5-20 19405 Humboldt at serpentine rockpile toward Ashfield Butte Kneeland Prairie; , toward Ashfield Butte 762 Comment
  UC1198812  Thlaspi montanum var. montanum Joseph P. Tracy 1911-7-11 3516 Humboldt hills along Supply Creek (Hupa Valley); Northern Coast Ranges, , Supply Creek 304 Comment
  HSC1301  Thuja plicata Allan R. Marshall 1962-5-20 23 Humboldt Blue Lake along Hwy. 299 46 Comment
  HSC95903  Thuja plicata Will Ferrand 2001-6-17 2 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  RSA301968  Thuja plicata J. R. Shevock 1972-3-26 1468 Humboldt Along Hwy 299. 366 Comment
  RSA46501  Thuja plicata Doris K. Kildale 1927-3-22 2935 Humboldt N Fork of Elk River, Humboldt County Comment
  SBBG56418  Thuja plicata M. Van Rensselaer 1938-3-31 Humboldt Humboldt County [no specific locality] Comment
  SD56861  Thuja plicata Darley F. Howe 1963-8-7 Humboldt 30 miles west of west entrance to 6 Rivers north fork on Highway #299 185 Comment
  UC668049  Thysanocarpus curvipes Joseph P. Tracy 1938-5-1 15736 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  HSC64218  Tiarella trifoliata var. unifoliata J. O. Sawyer, M. A. Ericksen 1979-6-23 3383 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC98073  Tiarella trifoliata var. unifoliata Cara Witte 2007-7-12 526 Humboldt Forest Service Road 5N10C. Approximately 1 mile south for intersection with Ammon Ridge Road. 1252 Comment
  JEPS49705  Tiarella trifoliata var. unifoliata W. L. Jepson 1932-7-26 16417 Humboldt Bull Creek Comment
  SEINET12217530  Tiarella unifoliata F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -291 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  RSA12561  Tofieldia glutinosa subsp. occidentalis Carl B. Wolf 1934-7-2 5878 Humboldt At small lake at Snow Camp (Mtns E of Korbel) 1372 Comment
  UC275557  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1924-7-4 6709 Humboldt Snow Camp Northern Coast Ranges 1371 Comment
  UC14482  Tolmiea diplomenziesii Chesnut and Drew 1888-7-9 Humboldt near Arcata Comment
  HSC100655  Tolmiea menziesii Carl C. Marshall Apr 1885 46 Humboldt Damp woods near streams etc. Comment
  HSC97910  Tolmiea menziesii Cara Witte 2007-6-27 378 Humboldt Forest Service Road 6N08. Friday Ridge Road. Approximately 2 miles south of intersection with 5N09. 1474 Comment
  HSC45466  Torilis arvensis Thomas W. Nelson, Jane P. Nelson 1978-7-2 4387 Humboldt Along Hwy. 36 1 mi. E of Grizzly Creek Comment
  UC585612  Torilis arvensis Mrs. Emma N. Cathey 1936-7 Humboldt near Miranda (Cathey Ranch) 304 Comment
  UCR123960  Torilis arvensis George K. Helmkamp, E. A. Helmkamp 2001-7-8 6986 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  HSC79551  Torilis arvensis Kenneth Clark 1980-6-14 668 Humboldt On western slope above Dead Man's Gulch. 152 Comment
  SEINET12238542  Toxicodendron diversilobum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -300 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  UC1618532  Tracyina rostrata Robert Ornduff June 1997 10106 Humboldt Northeast of Alderpoint, easterly from Alderpoint-Blocksburg Road ca. 1 km (0.6 mi) on unpaved Stewart Ranch Road Comment
Read comments Apr 28 2007
  SEINET10953093 Image available Tracyina rostrata Joseph P. Tracy 1916-6-20 Tracy 4735 Humboldt Alder Point, on warm grassy slopes. 305 Comment
  CAS-BOT-BC399990  Trautvetteria caroliniensis Joseph P. Tracy 1937-7-2 15387 Humboldt Happy Camp Mountain. (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  HSC56957  Triantha occidentalis subsp. occidentalis Overton, Butler 1979-7-23 9470 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 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
  HSC43157  Trichostema lanceolatum R. Sutherland 1976-8-19 1 .19876 Humboldt 259 Comment
  UC577370  Trichostema lanceolatum Joseph P. Tracy 1934-8-19 13595 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC14455  Trichostema laxum H. E. Parks, J. P. Tracy 1941-8-28 11507 Humboldt Van Duzen River, Low Gap 793 Comment
  UCLA30918  Trichostema laxum Harlan Lewis 1955-7-19 Humboldt 0.1 mi W of Trinity County line on State Highway 36 Comment
  HSC32879  Trientalis latifolia Thomas W. Nelson, James Nelson 1973-5-28 933 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1198627  Trientalis latifolia Joseph P. Tracy 1935-5-24 13816 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  HSC17932  Trientalis latifolia Francis Winter 1960-4-24 Humboldt 7 mi. W of Hoopa Indian Reservation, Bair Rd. 915 Comment
  RSA69006  Trientalis latifolia F. W. Peirson 1923-7-9 s.n. Humboldt first summit on road between coast and Eel River 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
  UC495669  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1932-5-1 9894 Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  UC495673  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1929-5-5 8566 A Humboldt along South Fork of Eel River (Miranda); Northern Coast Ranges 121 Comment
  UC1223386  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1936-5-29 14819 Humboldt French Camp Comment
  UC16424  Trifolium barbigerum Harley P. Chandler May, 1901 1102 Humboldt Humboldt Bay; North Coast Ranges Comment
  UC495698  Trifolium barbigerum Joseph P. Tracy 1927-5-14 8028 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC205597  Trifolium ciliolatum J. P. Tracy 1919-5-31 5148 Humboldt along Willow Creek (near mouth of Tributary of Trinity River); Northern Coast Ranges 152 Comment
  RSA249399  Trifolium cyathiferum D. E. Anderson, Thomas Nelson, S. Dowty 1972-6-17 5705 Humboldt McKeown Ranch north of Dinsmore Comment
  HSC73960  Trifolium dichotomum Gail Newton 1980-6-7 128 Humboldt Near Brush Mtn. 1128 Comment
  POM313548  Trifolium dubium P. B. Kennedy 1929-6-12 10323 Humboldt Eureka. Comment
  UC303191  Trifolium dubium Joseph P. Tracy 1925-5-17 6971 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  RSA510999  Trifolium dubium Robert F. Thorne, Percy C. Everett, K. Thorne 35246 Humboldt N edge of Eureka, E of Hwy. 101. 5 Comment
  NY33709  Trifolium elmeri V. K. Chesnut 1888-7-25 s.n. Humboldt Comment
  HSC31744  Trifolium fucatum Donald Spalinger 1974-5-12 60 Humboldt Bald Hills Rd., 1.5 mi. E from junction with Hwy. 101 229 Comment
  UC495734  Trifolium fucatum Joseph P. Tracy 1927-5-14 8005 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UCD111202  Trifolium hirtum A. H. Murphy 1947-8-19 s.n. Humboldt Fairground exper. Area, Fortuna. Comment
  UC16566  Trifolium hybridum Joseph Burtt Davy and Walter C. Blasdale 1899-6-17 5601 Humboldt Arcata Comment
  UC1223363  Trifolium longipes subsp. hansenii Joseph P. Tracy 1950-6-25 18897 Humboldt Buck Mountain. 3 miles south of Burr Valley, near the Sproston Place. 1158 Comment
  HSC97567  Trifolium longipes subsp. shastense C. Witte 2007-5-18 44 Humboldt Near Bottleneck Spring. 1575 Comment
  UC199105  Trifolium longipes var. elmeri Chesnut and Drew July 1888 Humboldt S. Fork of Trinity Comment
  UC165529  Trifolium longipes var. hansenii Joseph Burtt Davy 1899-6-22 5765 Humboldt Trinity Summit Comment
  UC1223340  Trifolium obtusiflorum Joseph P. Tracy 1934-6-3 13205 Humboldt recently cleared land at Park's Place Trinidad Comment
  UC1103443  Trifolium oliganthum Joseph P. Tracy 1921-4-24 5460 Humboldt facing South Fork of Eel River (Phillipsville); Northern Coast Ranges 121 Comment
  UC16702  Trifolium pratense Joseph Burtt Davy and Walter C. Blasdale 1899-6-15 5535 Humboldt near Scotia Comment
  HSC77398  Trifolium pratense L. P. Janeway 1983-5-3 259 Humboldt Along E Fence of HSU playing field 21 Comment
  HSC49247  Trifolium subterraneum R. Sutherland 1978-5-19 2 .19578 Humboldt Mckee Flat 296 Comment
  UCD109391  Trifolium subterraneum R. Tofsrud 1949-7-1 s.n. Humboldt Talarook, Hydesville. Comment
  HSC45133  Trifolium variegatum R. Sutherland 1978-4-23 22 .23478 Humboldt 732 Comment
  JEPS4186  Trifolium variegatum var. melananthum H. E. Parks and Joseph P. Tracy 1925-6-27 7145 Humboldt Alton Northern Coast Ranges 30 Comment
  UC1197553  Trifolium variegatum var. melananthum Joseph P. Tracy 1930-5-18 8695 Humboldt Roseville golf course Northern Coast Ranges 152 Comment
  UC201371  Trifolium variegatum var. melananthum Joseph P. Tracy 1918-7-3 4990 Humboldt Shelter Cove Northern Coast Ranges 15 Comment
  UC1223528  Trifolium variegatum var. variegatum Joseph P. Tracy 1937-7-19 15460 Humboldt lower foothills nw slope; Buck Mtn 914 Comment
  UC1223315  Trifolium willdenovii Joseph P. Tracy 1938-6-8 15866 Humboldt Samoa Sand Dunes Comment
  UC1197037  Trifolium wormskioldii Joseph P. Tracy 1911-6-30 3727 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CAS-BOT-BC451807  Triglochin maritima W. R. Dudley 1899-6-1 s.n. Humboldt Below Samoa--Eureka Penn. [Peninsula] Comment
  HSC103300  Trillium albidum Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-27 3006 Humboldt Six Rivers National Forest; ~ 0.2 mi. south-southeast of Cold Spring Camp; ~ 3.3 aerial mi. south-southeast of Horse Mtn. Radio Tower. 1416 Comment
  HSC97468  Trillium albidum Cara Witte 2007-5-8 4 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  UC1197830  Trillium albidum Joseph P. Tracy 1911-5-7 3182 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC15689  Trillium kurabayashii K. P. St. John 1965-4-24 43 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  CAS-BOT-BC133397  Trillium ovatum Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC41231  Trillium ovatum Brad Klipfel 1974-5-8 320 Humboldt Horse Mountain Comment
  HSC15703  Trillium ovatum W. F. Nickel 1965-4-3 Humboldt 5 mi. SE of Fern Canyon in Prairie Creek Redwoods State Park, on rd. to Fern Canyon Comment
  CAS-BOT-BC521317  Trillium rivale L. B. Kildale 1930-6-1 9770 Humboldt Klamath River at Bluff Creek 152 Comment
  RSA298972  Triodanis biflora Lincoln Constance 1934-6-4 818 Humboldt Look Prairie, and Bull Creek road, to Dyerville, South Fork Eel River. Comment
  SEINET10458960  Triodanis biflora Chandler CHANDLER 1514 B Humboldt SOMES BAR Comment
  JEPS13339  Triphysaria eriantha subsp. eriantha Harley P. Chandler May, 1901 1142 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 3 Comment
  UC1198038  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1917-5-30 4805 Humboldt Little River Beach; Northern Coast Ranges, Little River Beach 6 Comment
  UC951233  Triphysaria eriantha subsp. eriantha S. K. Harris 1942-6-10 1474 Humboldt Prairies Bear River Ridge Bear River Ridge; , Prairies 457 Comment
  HSC34945  Triphysaria eriantha subsp. eriantha Robert M. Specht 1975-4-9 124 Humboldt End of Murray Rd., W of Hwy. 101 6 Comment
  JEPS26158  Triphysaria eriantha subsp. eriantha Joseph P. Tracy and Ernest B. Babcock 1912-5-12 3633 Humboldt Eureka Bucksport (Bucksport); Northern Coast Region, Eureka 0 Comment
  UC1198036  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1911-5-30 3207 Humboldt sandy fields at Bucksport (at Eureka); Northern Coast Region 0 Comment
  UC1222444  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1927-4-24 7929 Humboldt Eureka 6 Comment
  UC902249  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1944-5-14 17467 Humboldt Eureka 6 Comment
  UC552772  Trisetum canescens Joseph P. Tracy 1934-6-27 11074 Humboldt Grouse Mt.; Northern Coast Ranges 1432 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
  UCD93903  Trisetum cernuum P. B. Kennedy 1923-8-3 s.n. Humboldt South of Scotia. By road through red woods off highway. Comment
  UC1197711  Triteleia hyacinthina Joseph P. Tracy 1935-5-25 13869 Humboldt Fort Seward 106 Comment
  HSC32937  Triteleia laxa Thomas W. Nelson, James Nelson 1973-5-28 952 Humboldt McKeown Ranch N of Dinsmore Comment
  UC535772  Triteleia laxa Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  SEINET12053141  Triteleia laxa K. S. Erdman 1970-1 4768 Humboldt S slope of Schoolhouse Peak on Bald Hills Road, about 16 mi S of Orick 914 Comment
  CDA2565  Triticum aestivum Gordon Leppig, Sylvia Leppig, K. Neander 2000-4-14 1293 Humboldt East of Community Center parking lot, Arcata. Comment
  HSC72050  Tropaeolum majus J. M. DiTomaso 1979-5-10 947 Humboldt Corner of 13th and Union St., Arcata. Comment
  UC615043  Tsuga heterophylla Beryl O. Schreiber 1934-6-5 1133 Humboldt 15 mi e of Blue Lake (road to Redding, wooded slope) Comment
  HSC59566  Umbellularia californica Rick Lundquist 1979-4-22 26 Humboldt 8.4 mi. up Fickle Hill Rd. from 11th St. across from HSU observatory 610 Comment
  UC229829  Urtica urens Joseph P. Tracy 1922-7-16 6103 Humboldt Northern Coast Ranges, at Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  CAS-BOT-BC193960  Vaccinium cespitosum Doris K. Kildale 1928-6-24 5302 Humboldt Foot of 3rd Street near Eureka Slough, Eureka Comment
  CAS-BOT-BC199309  Vaccinium ovatum L. R. Abrams 1916-7-11 5992 Humboldt Between Balocksberg [Blocksburg] and Bridgeville Comment
  CAS-BOT-BC199320  Vaccinium ovatum Carl B. Wolf 1931-8-29 2369 Humboldt Near summit of Orick Hill on road to Weitchpec 304 Comment
  HSC7909  Vaccinium ovatum C. B. Wolf 1927-8-27 1159 Humboldt Klamath River, 2 mi. below the mouth of the Salmon River Comment
  HSC7912  Vaccinium ovatum W. R. Rogers 1966-5-1 225 Humboldt Mill Creek Comment
  JEPS66687  Vaccinium ovatum Lincoln Constance 1934-5-31 758 Humboldt from w boundary of Park to Grasshopper Peak (Squaw Creek) rd. (Bull Creek flat, along Bull Creek, n side of creek); South Fork Eel River, Bull Creek Region Comment
  POM118412  Vaccinium ovatum Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville Comment
  UC1225908  Vaccinium ovatum Joseph P. Tracy 1943-3-14 17409 Humboldt 5 mi e Carlotta (by old Strong's District School House) 60 Comment
  UC412666  Vaccinium ovatum Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  UCD118079  Vaccinium ovatum Joseph M. DiTomaso 1976-3-28 349 Humboldt Arcata, beneath Redwood tree. Comment
  UCD118109  Vaccinium ovatum T. I. Storer 1931-7-1 2221 Humboldt Coast. Comment
  RSA303471  Vaccinium parvifolium J. R. Shevock 1972-3-26 1470 Humboldt Along Hwy 299. 366 Comment
  UC1121143  Vaccinium parvifolium A. E. Wieslander 1931-5-19 205 Humboldt Near Orleans; Klamath Forest, Hoopa Quad. Comment
  UC484034  Vaccinium parvifolium C. B. Wolf 1930-10-26 Humboldt Along the Redwood Highway, 3 mi south of Del Norte County line 152 Comment
  JEPS9372  Valeriana californica Joseph P. Tracy 1935-7-30 14381 Humboldt Salmon Summit 2103 Comment
  UC673215  Valeriana sitchensis subsp. scouleri Lincoln Constance, Reed C. Rollins 1942-5-11 2867 Humboldt 3 mi w of East Fork of Willow Creek; North Coast Ranges Comment
  HSC74321  Vancouveria hexandra Gail Newton 1980-7-20 1637 Humboldt Near Bell Swamps 1426 Comment
  HSC91601  Vancouveria hexandra E. Mackey 1986-6-16 Humboldt Patrick's Point State Park Comment
  SDSU13780  Vancouveria hexandra D. F. Howe 1969-6-4 4630 Humboldt 14.6 miles east of Alton on #36. 91 Comment
  HSC3376  Vancouveria hexandra J. R. Good 1964-5-15 34 Humboldt 1.25 mi. up road along Jolly Giant Creek E of HSU Comment
  HSC37695  Vancouveria hexandra J. D. Ackerman 1974-4-26 181 Humboldt .3 mi. up Jolly Giant Cr. from HSU, Arcata. Comment
  SEINET12094119  Vancouveria hexandra F. H. Utech 1988-1 88 -269 Humboldt 14 mi W of Bridgeville enroute to Carlotta on CA 36, Van Duzen County Park, Pamplin Grove 50 Comment
  SEINET10932381  Vancouveria planipetala Mary Merello 1993-6-19 Merello 658 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  UC1126306  Vancouveria planipetala A. E. Wieslander 1931-5-19 207 Humboldt near Orleans; Klamath Forest, Hoopa Quadrangle Comment
  BLMAR34  Vancouveria planipetala Jennifer Wheeler 34 Humboldt King range Comment
  UC1198213  Veratrum californicum var. californicum Joseph P. Tracy 1933-7-25 12862 Humboldt in wet meadow Grouse Mountain 1524 Comment
  UC1173646  Veratrum insolitum Joseph P. Tracy 1936-8-8 15127 Humboldt on Ridge 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  CAS-BOT-BC527058  Veratrum viride var. eschscholzianum L. B. Kildale 1930-8-10 10206 a Humboldt Snow Camp, head of Redwood Creek Comment
  UC447232  Verbascum blattaria Joseph Burtt Davy and Walter C. Blasdale 1899-6-28 5898 Humboldt below Hoopa Valley (Klamath River); North Coast Ranges, Klamath River Comment
  JEPS11195  Verbascum thapsus W. L. Jepson 1936-8-12 17873 Humboldt South Fork Eel River Phillipsville; South Fork Eel River Comment
  RSA698160  Verbascum thapsus J. R. Bruff 1937-8-17 944 Humboldt Richardson Grove. Comment
  UC35085  Verbena lasiostachys var. lasiostachys Hy-Ann Pum 1888-7-21 Humboldt Comment
  UC1222772  Veronica americana Joseph P. Tracy 1950-6-8 18727 Humboldt 7 mi s of Ferndale (summit of Bear River Ridge, near Mount Glen Ranch); Bear River Ridge 609 Comment
  UC902233  Veronica arvensis Joseph P. Tracy 1942-5-16 17345 Humboldt Garberville 152 Comment
  HSC59651  Veronica persica Michael Dalke 1979-4-1 11 Humboldt 0.1 mi. E of Hwy. 101, N Bank Rd. 12 Comment
  JEPS25055  Veronica scutellata Joseph P. Tracy 1921-6-12 5824 Humboldt Butler Valley; Northern Coast Ranges, Butler Valley 152 Comment
  UC582548  Veronica scutellata Joseph P. Tracy 1927-7-17 8275 Humboldt on lower w foothills of Chaparral Mountain (Three Cabins); North Coast Ranges, , Three Cabins 457 Comment
  HSC75486  Veronica serpyllifolia subsp. humifusa J. O. Sawyer 1980-7-18 3609 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  JEPS12698  Viburnum ellipticum P. E. Goddard 1908-7-20 Humboldt 1 mi s Harris Comment
  RSA138213  Vicia gigantea Volney Rattan 1880-1 s.n. Humboldt Mad River Comment
  HSC15259  Vicia hirsuta S. J. Roberts 1965-5-2 48 Humboldt Along old railroad Comment
  RSA168921  Vicia hirsuta Joseph P. Tracy 1943-7-1 17428 Humboldt Vacant lot, 7th and I Streets, Eureka. (Same place as no. 17474). Comment
  CAS-BOT-BC94771  Vicia tetrasperma R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 831 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
  CAS-BOT-BC263943  Viola adunca Mrs. H. C. Cantelow 1936-5-17 s.n. Humboldt 5.5 miles E of Orick Comment
  SEINET200809 Image available Viola adunca Joseph P. Tracy, Ernest B. Babcock 1912-5-11 3586 Humboldt Near Hydesville 30 Comment
  POM98595  Viola adunca F. W. Peirson 1926-7-12 7028 Humboldt Coast Range, back of Orick. 1067 Comment
  HSC102036  Viola bakeri M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 939 Humboldt Forest edge surrounding Patterson Meadows 1566 Comment
  HSC100915  Viola blanda Carl C. Marshall Jun 1886 312 Humboldt Trinity Summit. Comment
  UC302051  Viola cuneata Joseph P. Tracy 1926-6-20 7615 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1524 Comment
  POM161057  Viola cuneata Joseph P. Tracy 1926-6-6 7560 Humboldt Hoopa Mountain. On road west from Hoopa Valley. 915 Comment
  RSA168949  Viola cuneata Joseph P. Tracy 1950-7-1 18946 Humboldt Summit near Clear Lake. Grouse Mountain. 1524 Comment
  HSC33151  Viola hallii Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1245 Humboldt Horse Mtn. area, W of microwave tower 1220 Comment
  HSC26636  Viola lobata subsp. integrifolia Thomas W. Nelson 1971-5-31 456 Humboldt Near the Mad River N of Dinsmore Comment
  SEINET11993509  Viola ocellata F. H. Utech 1986-1 86 -388 Humboldt ca 5 mi N on Kings Peak Rd, from junction with Shelter Cove Rd, near Tolkan Recreation Area 480 Comment
  UCSB27855  Viola palustris Phelps, M. 1972-3-19 Humboldt 1.5 mi. from Garberville along Old Briceland Rd., 0.5 mi. north of roadside 213 Comment
  UC30717  Viola praemorsa subsp. linguifolia Harley P. Chandler June, 1901 1288 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 1097 Comment
  HSC99094  Viola praemorsa subsp. praemorsa C. Witte 2007-5-8 7 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1397 Comment
  UC35265  Viola praemorsa subsp. praemorsa W. C. Blasdale 1896-6-7 Humboldt Kneeland's Comment
  UC1198418  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1924-3-9 6609 Humboldt slopes towards Lawrence Creek; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC39683  Viola purpurea subsp. purpurea Thomas W. Nelson, Jane P. Nelson 1976-6-16 2738 Humboldt Along old trail from lookout to Blocksburg 1524 Comment
  UC66202  Viola purpurea subsp. purpurea Joseph Burtt Davy and Walter C. Blasdale 1899-5 5660 Humboldt North Coast Ranges; ; Summit of ridge, Hoopa Mt., from Bairs to Hoopa Comment
  UC709441  Viola sempervirens Joseph P. Tracy 1941-4-8 16854 Humboldt head of Willow Creek ( Willow Creek Canyon, along Trinity Highway); Willow Creek Canyon, Willow Creek 762 Comment
  JEPS50235  Viola sempervirens Lincoln Constance 1934-5-31 760 Humboldt Bull Creek Flat along Bull Creek (from w boundary of Park to Grasshopper Peak (Squaw Creek)road, n side of creek); Bull Creek Region, South Fork Eel River Comment
  UC201299  Viola sempervirens Chesnut and Drew 1888-7-8 Humboldt Campbell's Comment
  HSC90685  Vulpia bromoides Gail Newton 1982-6-5 3587 Humboldt Elk River Wildlife Area, Eureka. Comment
  HSC9834  Vulpia bromoides W. F. Nickel 1965-3-17 Humboldt HSU campus, behind wildlife building Comment
  UC34061  Vulpia bromoides J. P. Tracy 1900-6-23 858 Humboldt immediate vicinity Eureka 0 Comment
  SEINET11682992  Vulpia bromoides K. S. Erdman 1970-1 4818 Humboldt summit of Gold Bluffs on park road about 2 mi W of US 101 at Berry Glenn, Redwood National Park Comment
  HSC22841  Vulpia microstachys D. E. Anderson, J. O. Sawyer, J. P. Smith 1970-5-10 5070 Humboldt 3 mi. W of Willow Creek along Three Creeks Rd. Comment
  CDA28607  Vulpia microstachys var. ciliata G. F. Hrusa 1993-6-17 11224 Humboldt Red Mountain; Entrance gate to Red Mt. Comment
  HSC37935  Vulpia myuros Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  HSC45027  Vulpia myuros R. Sutherland 1978-5-13 4 .13578 Humboldt Mattole River. 282 Comment
  UCD94901  Vulpia myuros A. H. Murphy 1951-6-1 50 Humboldt Erikson Glade, south slope of South Fork Mtn., about 3 miles east of Low Gap. Comment
  CAS-BOT-BC184733  Vulpia myuros subsp. megalura Henry M. Pollard 1948-7-19 s.n. Humboldt Orleans to Van Fleet ranch Comment
  UC525643  Vulpia octoflora var. hirtella Joseph P. Tracy 1929-7-4 8618 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  CAS-BOT-BC128811  Whipplea modesta Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville Comment
  HSC20440  Whipplea modesta S. S. Stutz 1963-3-24 8 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  HSC20447  Whipplea modesta J. W. Johnson 1962-4-22 1280 Humboldt Willow Creek along the Hwy. on the canyon slope W of town Comment
  HSC40231  Whipplea modesta J. P. Smith, J. O. Sawyer 1976-5-2 8621 Humboldt 3.7 mi. N of junction with Hwy. 299 on Hwy. 96 61 Comment
  UC154108  Whipplea modesta J. P. Tracy 1906-4-15 2412 Humboldt above Korbel; Bald Mt. 609 Comment
  CAS-BOT-BC77812  Woodwardia fimbriata Doris K. Kildale 1928-12-30 6763 Humboldt Phillipsville Comment
  UC1223300  Wyethia angustifolia Joseph P. Tracy 1950-9-10 19357 Humboldt Bear River Ridge 609 Comment
  UC128618  Wyethia angustifolia P. E. Goddard Jul 1910 Humboldt Hupa Valley Comment
  UC176305  Wyethia angustifolia Joseph P. Tracy 1913-6-20 4226 Humboldt lower foothills nw slope Buck Mountain; Northern Coast Ranges, nw slope lower foothills Buck Mt 762 Comment
  UC485604  Wyethia angustifolia P. E. Goddard 1907-6-16 b. 123 Humboldt Van Duzen Comment
  CAS-BOT-BC326980  Wyethia longicaulis Doris K. Kildale 1926-6-9 2148 Humboldt Horse Mountain 1219 Comment
  HSC98069  Wyethia longicaulis Cara Witte 2007-7-19 546 Humboldt Buck Flat. 1482 Comment
  RSA12453  Xerophyllum tenax Carl B. Wolf 1934-6-30 5840 Humboldt Near summit of grade on road from Briceland to Shelter Cove; 6 miles from Shelter Cove 244 Comment
  SEINET3888981  Xerophyllum tenax D. E. Anderson 1972-6-20 s.n. Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit.; 0 Comment
  CDA36451  Xerophyllum tenax CDFA Staff 1978-6-15 Humboldt 0 Comment
  HSC8416  Zeltnera muehlenbergii Lincoln Constance 1934-6-4 820 Humboldt Look Prairie and Bull Creek Rd. to Dyerville, South Fork of Eel River Comment
  SD56768  Zeltnera muehlenbergii Darley F. Howe 1963-7-8 3622 Humboldt 8.2 miles west of Bridgeville on California 36; Van Duzen Road. 91 Comment
  CAS-BOT-BC532736  Zigadenus micranthus Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment



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