Search Results — 2000 specimen records retrieved (1361 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)

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

Mapping Options:

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

Download Options:
Select all records · Select records with coordinates

Include annotations and voucher information

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

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

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

Click on column header to sort data (* sorts by family); click in leftmost checkbox to select record. CCH Help Page.
Turn on yellow flags to show possible range discrepancies. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC72799  Abies concolor Gail Newton 1980-6-17 213 Humboldt Near Onion Mtn. 1341 Comment
  UC55645  Abies magnifica var. shastensis Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 58121 Humboldt Trinity summit North Coast Ranges, Trinity Summit (ne Humboldt and nw Trini Comment
  NY679513  Abronia umbellata subsp. breviflora H. E. Parks 09 1941 24212 Humboldt Mouth of Little River. Comment
  CDA40639  Acaena novae-zelandiae G. S. Lester 1973-11-8 55 Humboldt Anchor Tree Farm, east of McKinleyville, near Fieldbrook. Comment
  HSC100371  Acaena novae-zelandiae J. McRae 2010-6-18 Humboldt McKinleyville, USFS Humboldt Nursery. Comment
  HSC2783  Acer circinatum L. J. Coombes 1964-5-16 33 Humboldt Camp Bowers, 3 mi. SE of Blue Lake 1524 Comment
  UC527559  Acer circinatum C. B. Wolf 1931-8-29 2368 Humboldt Redwood Highway 3 mi n Orick (Davison's Ranch on Prairie Creek); Davison's Ranch on Prairie Creek 60 Comment
  HSC2814  Acer macrophyllum Elrid H. Spinas 1948-6-16 61 Humboldt Horse Mtn. Comment
  UC166038  Acer macrophyllum Joseph P. Tracy 1910-4-17 3117 Humboldt near the forks Elk River (region about Humboldt Bay); Northern Coast Region, Humboldt Bay, nr Elk River 0 Comment
  UC452623  Acer macrophyllum P. E. Goddard 1901-7 47 Humboldt Hupa Valley Hupa Valley (Mendocino and Humboldt Counties) Comment
  HSC12754  Achillea millefolium M. J. Athey 1970-12-5 26 Humboldt Along old road to Trinidad Head, Trinidad Comment
  CAS-BOT-BC400001  Achlys californica E. Gundershaug; K. White; D. Johnson 1994-5-17 23 Humboldt 0.5 miles N of Hwy. 299 on old logging road, 17 miles E of Blue Lake 510 Comment
  CAS-BOT-BC400017  Achlys triphylla Harley P. Chandler 1901-6-1 1293 Humboldt North Coast Ranges, Hupa Indian Reservation 182 Comment
  HSC70631  Achlys triphylla R. York 1980-5-18 585 Humboldt Near Black Mtn. 390 Comment
  SEINET8072990  Achlys triphylla W. Roderick 1967-7-22 s.n. Humboldt Ca 5 miles E of Carlotta. 46 Comment
  UC30137  Achlys triphylla subsp. triphylla W. C. Blasdale 1896-6-6 Humboldt Fitzgerald's Comment
  UC526748  Achnatherum lemmonii Joseph P. Tracy 1928-6-24 8466 Humboldt Valley of South Yager Creek 762 Comment
  CHSC35605  Acmispon parviflorus Jame P. Smith 1973-5-26 6837 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC98294  Acmispon wrangelianus Harvey Doerksen 1962-5-8 20 Humboldt Across Mad River from Korbel, at Camp Bauer. Comment
  HSC73766  Aconogonon davisiae Gail Newton 1980-7-24 1772 Humboldt Near Somes Mtn. 1615 Comment
  HSC82393  Aconogonon davisiae Thomas W. Nelson 1979-7-11 5022 Humboldt N Trinity Mtn. and ridge to E, SE of Water Dog Lake 1829 Comment
  HSC32122  Actaea rubra D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5589 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  SD73189  Adenocaulon bicolor Darley F. Howe 1969-6-4 Humboldt 14.6 miles east of Alton on #36 89 Comment
  CAS-BOT-BC29864  Adenocaulon bicolor Carl B. Wolf 1927-8-21 766 Humboldt In Stephen's Grove Comment
  CAS-BOT-BC29865  Adenocaulon bicolor Huron Herbert Smith 1911-6-20 3910 Humboldt unspecified Comment
  HSC4589  Adenocaulon bicolor Paul Shields Jun 1955 Humboldt 2 miles S. Weott Comment
  UC582522  Adenocaulon bicolor Joseph P. Tracy 1933-8-6 12940 Humboldt in shade of trees French Camp Ridge 1066 Comment
  CAS-BOT-BC62289  Adiantum aleuticum T. G. W. 1924-7-1 s.n. Humboldt Arcata Comment
  HSC948  Adiantum aleuticum W. R. Supernaugh, Jr. 1964-12-4 12 Humboldt Along rd. to Jolly Giant Reservoir Comment
  UC62707  Adiantum jordanii Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5729 Humboldt Supply Creek Comment
  HSC31797  Aesculus californica Steve Selva, Roger Jensen 1974-8-27 80 Humboldt W of Humboldt-Trinity co. line on Hwy. 299 Comment
  UC165819  Aesculus californica Joseph P. Tracy 1901-8-2 1246 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC249587  Aesculus californica Joseph P. Tracy 1921-10-22 5978 Humboldt Bridgeville; Northern Coast Ranges 304 Comment
  UC205167  Ageratina occidentalis Joseph P. Tracy 1900-8-15 5358 Humboldt mouth of Bluff Creek; Klamath River, Bluff Creek 152 Comment
  UC1222936  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1950-7-6 19025 Humboldt 3 mi s, sw slopes of Buck Mountain Burr Valley; Buck Mountain 1066 Comment
  UC582755  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1932-6-14 10160 Humboldt in field at, Willow Creek; Trinity River Valley 152 Comment
  UC302295  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1926-6-27 7688 Humboldt Horse Mountain; Northern Coast Ranges 1524 Comment
  UC1199483  Agoseris heterophylla var. heterophylla Joseph P. Tracy Jul 16 1930-Jul 19 1930 9045 Humboldt near, in open glades along summit Blake lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  POM126128  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6280 Humboldt Bear Ridge Ridge 305 Comment
  JEPS71135  Agrostis alba W. L. Jepson 1936-8-17 17923 Humboldt 2 1/2 mi s Fields Landing Comment
  UCD51855  Agrostis capillaris A. H. Murphy 1947-7-25 s.n. Humboldt Highland Bent, Cottral Ranch. Comment
  UCD51874  Agrostis capillaris var. aristata A. H. Murphy 1951-6-13 58 Humboldt Tooby and Prior Ranch, 3 miles S of Blocksburg. Comment
  HSC102221  Agrostis exarata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1137 Humboldt Patterson Meadows 1555 Comment
  HSC76568  Agrostis exarata Teresa Prendusi 1981-7-24 495 Humboldt Near Whiteys Peak 1585 Comment
  HSC98576  Agrostis exarata Cara Witte 2007-7-20 556 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  UC204711  Agrostis exarata Joseph P. Tracy 1918-7-5 5016 Humboldt White Thorn Valley, in dried up ditch Northern Coast Ranges, White Thorn Valley 304 Comment
  UCD52494  Agrostis exarata Joseph P. Tracy 1935-7-21 14111 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  SEINET200934  Agrostis gigantea Joseph P. Tracy 1902-7-4 1758 Humboldt Eureka 0 Comment
  HSC89506  Agrostis hallii M. Roantree 1985-5-30 71 Humboldt SW side of Trinidad Head. Comment
  UC187289  Agrostis hallii J. P. Tracy 1901-6-30 1213 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC139131  Agrostis oregonensis Joseph P. Tracy 1934-7-13 13392 Humboldt North Coast Ranges. Dows Prairie. 60 Comment
  RSA10024  Agrostis oregonensis Joseph P. Tracy 1925-7-5 7173 Humboldt Bald Mountain; near High Prairie 1067 Comment
  CAS-BOT-BC139062  Agrostis pallens W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula. Comment
  UC589898  Agrostis pallens H. S. Yates 1936-6-16 5685 Humboldt near Bayside; Eureka Quadrangle 9 Comment
  HSC40393  Agrostis stolonifera Thomas W. Nelson, James Nelson 1976-7-28 3046 Humboldt W of Alder Springs along 2S08 1555 Comment
  UC187294  Agrostis stolonifera Joseph P. Tracy 1909-7-11 3012 Humboldt Eureka Northern Coast Region 0 Comment
  HSC70927  Aira caryophyllea R. York 1980-5-18 578 Humboldt Near Black Mtn 792 Comment
  HSC97500  Aira caryophyllea Cara Witte 2007-5-29 123 Humboldt Along National Forest 1. Approximately 4 miles south of intersection National Forest 1 and 5N04. 1441 Comment
  UC1103304  Aira caryophyllea J. P. Tracy 1900-6-14 855 Humboldt Immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC138197  Aira praecox Joseph P. Tracy 1925-5-24 7013 Humboldt Northern Coast Ranges. Eureka. 60 Comment
  HSC8871  Aira praecox R. J. Vernimen 1963-4-27 35 Humboldt 0.5 mi. off Samoa Blvd. behind Georgia-Pacific dump, 7.5 mi. SW of Arcata Comment
  UC526676  Aira praecox Joseph P. Tracy 1925-8-30 7252 Humboldt Freshwater Lagoon North Coast Ranges 60 Comment
  UCR37535  Alchemilla occidentalis L. P. Janeway 1983-5-1 255 Humboldt Northern Coast, North Spit (Samoa Peninsula). Sand dunes west of Samoa Rd and north of Coast Guard Station 6 Comment
  UC1198269  Alisma plantago-aquatica Joseph P. Tracy 1930-10-12 9214 Humboldt Alton to Fortuna (on gravel bars); Eel River 15 Comment
  HSC60375  Alisma triviale J. M. DiTomaso 1979-5-29 1077 Humboldt Arcata Bottoms, 1.7 mi. W of Alliance Rd. on Lanphere Rd. Comment
  SEINET199677  Allium bolanderi J. P. Tracy 1932-6-14 10139 Humboldt S Fork of Trinity River 0 Comment
  CAS-BOT-BC469019  Allium falcifolium Doris K. Kildale 1926-6-9 2150 Humboldt Horse Mountain 1219 Comment
  HSC65952  Allium hoffmanii M. A. Baker 1980-7-11 2799 Humboldt Near Red Mtn. 1433 Comment
  HSC67367  Allium hoffmanii Thomas W. Nelson, James Nelson 1980-6-10 5411 Humboldt Along Swayback Ridge Rd., 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  JEPS47610  Allium siskiyouense Joseph P. Tracy 1932-6-12 10484 Humboldt Head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  UC1196540  Allium triquetrum H. E. Peacock 1942-4-6 Humboldt Ferndale 15 Comment
  RSA167424  Allium unifolium Joseph P. Tracy 1950-6-25 18890 Humboldt Burr Valley. Comment
  UC666890  Allium validum Joseph P. Tracy 1930-7-16 8922 Humboldt meadow at McKay's Camp South Fork Mountain, McKay's Camp 1676 Comment
  CAS-BOT-BC453428  Allotropa virgata Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek, near Orleans Comment
  UC1197954  Alnus rhombifolia Joseph P. Tracy 1922-12-31 6134 Humboldt Cummings Creek Northern Coast Ranges, Van Duzen River (near Carlotta) 30 Comment
  RSA46861  Alnus rhombifolia Doris K. Kildale 1926-12-13 1428 Humboldt Bridgeville, bank on Van Duzen. 229 Comment
  HSC13111  Alnus rubra Steve Dorei 1970-10-13 40 Humboldt Arcata, HSC Campus W of Forestry Building along W edge of parking lot Comment
  HSC89484  Alnus rubra P. A. Daly 1984-5-13 22 Humboldt Along trail at Trinidad Head 61 Comment
  OBI6019  Alnus rubra Carl B. Wolf 1931-8-28 2366 Humboldt Redwood hwy , 4-1/2 mi N of fortuna on the road to Eureka Comment
  UCR27989  Alnus rubra A. C. Sanders 1981-8-6 2299 Humboldt Near Orick, 1.6 mi west of Hwy 101 on Davison Road toward Gold Bluffs Beach Comment
  SEINET12030338  Alnus rubra F. H. Utech 1986-1 86 -400 Humboldt ca 3 mi NW of Petrolla on Mattole Road (Co. F3C) 80 Comment
  UC1103310  Alopecurus aequalis Joseph P. Tracy 1932-8-21 10360 Humboldt Three Cabins North Coast Ranges, w. foothills Chaparral Mt., Three Cabins 457 Comment
  HSC8887  Alopecurus geniculatus Paul Shields 1955-10-7 Humboldt Essex Pond, near Blue Lake Comment
  SEINET11855057  Ambrosia artemisiifolia J. P. Tracy 1950-1 19313 Humboldt Frank Graham's place. Trinity River Valley, at Willow Creek 152 Comment
  BLMAR296  Ambrosia chamissonis Jennifer Anthony-Wheeler 2002-6-25 296 Humboldt King range, Growing in dune mat 3 Comment
  UC582627  Ambrosia chamissonis Joseph P. Tracy 1937-9-26 15688 Humboldt sand dunes, near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UCD170774  Ambrosia chamissonis Gordon Leppig 1998-5-25 786 Humboldt Big Lagoon State Park. Between ocean and Big Lagoon. 2 Comment
  UC1198748  Amelanchier utahensis Joseph P. Tracy 1932-7-18 10719 Humboldt Head of Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  SEINET3917968  Ammophila arenaria J. P. Smith, Thomas W. Nelson 1977-6-30 9201 Humboldt Samoa Peninsula just east of the drag strip.; 0 Comment
  UC525581  Amsinckia menziesii var. menziesii Joseph P. Tracy 1933-5-14 12175 Humboldt Trinity River Vallley at Willow Creek Trinity River Vallley; Northern Coast Ranges 152 Comment
  UC175680 Image available Amsinckia spectabilis Joseph P. Tracy 1910-6-5 3152 Humboldt sand dunes of ocean beach at Humboldt Bay; Northern Coast Region; Ocean Beach at Humboldt Bay Comment
  HSC17826  Anagallis arvensis C. Haley 1937-9-22 Humboldt Elk River Comment
  CHSC27929  Anaphalis margaritacea M. S. Taylor 1975-4-12 466 Humboldt Ca. 2000 yds E of Hwy 101, in Orick, by RR tracks. Comment
  RSA247393  Anaphalis margaritacea Gary D. Wallace 1966-9-12 702 Humboldt Along Hwy. 299 E of Arcata near Willow Creek; Comment
  HSC79468  Anaphalis margaritacea Kenneth Clark 1980-5-10 631 Humboldt Western slope above Dead Man's Gulch 130 Comment
  POM318602  Anaphalis margaritacea Patricia Wilder 1968-8-21 4381 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  POM118715  Anemone deltoidea Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  UC13934  Anemone deltoidea W. C. Blasdale 1896-6-1 Humboldt in redwoods Freshwater Comment
Read comments
Sep 17 2012
  UC8883  Anemone deltoidea J. Burtt Davy 1899-6-13 5499 Humboldt Camp Grant; North Coast Ranges Comment
  SJSU874  Anemone deltoidea A. C. Browne Sr. 1945-5-23 Humboldt Myers Flat Comment
  UC1196188  Anemone deltoidea H. E. Parks and Joseph P. Tracy 1931-5-31 9540 Humboldt Lawrence Creek; North Coast Ranges; Lawrence Creek 457 Comment
  UC249649  Anemone oregana Joseph P. Tracy 1922-4-30 6038 Humboldt Three Creeks; North Coast Ranges 914 Comment
  UC642244  Angelica tomentosa Joseph P. Tracy 1938-9-5 16145 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  HSC45639  Anisocarpus madioides Diane L. Reed 1978-5-7 50 Humboldt Friday Ridge Road, near Hwy. 299 Comment
  HSC102080  Antennaria media M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 982 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  SEINET200721 Image available Antennaria rosea J. P. Tracy 1939-8-6 16397 Humboldt Shore of Big Lagoon 3 Comment
  JEPS89480  Antennaria suffrutescens Dean W. Taylor 1991-8-15 12303 Humboldt ridge 1 mi. w. Horse Mt.; N. Coast Ranges 1493 Comment
  UCD56137  Anthoxanthum aristatum Joseph P. Tracy 1951-6-26 19548 Humboldt Snow Camp Meadow. Comment
  HSC24616  Anthoxanthum odoratum R. D. Modafferi 1965-4-8 34 Humboldt 1.3 mi. south of Trinidad on old Highway 101. 305 Comment
  HSC8950  Anthoxanthum odoratum D. B. Bader 1963-4-1 24 Humboldt Second of the Clam Beach lagoons, W of Hwy. 101 Comment
  UC573791  Anthoxanthum odoratum H. S. Yates 1936-6-16 5684 Humboldt near Bayside 9 Comment
  HSC94102  Anthriscus caucalis Peter Sorensen 1976-6-2 Humboldt Woodley Island, Humboldt Bay 1 Comment
  CDA41213  Antirrhinum vexillo-calyculatum subsp. breweri E. C. Whitney 1960-9-1 s.n. Humboldt State Highway 96 near Bluff Creek. 0 Comment
  UC1173653  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1939-8-5 16384 Humboldt Dinsmore's 731 Comment
  SEINET14183378  Aphanes occidentalis Unknown 1918-5-1 4903 Humboldt Plants of Northern Coast Ranges of Califonia warm place by roadside towards McBrides KNEELAND PRAIRIE, HUMBOLDT COUNTY Altitude 2500 ft. Comment
  UC1400213  Apium graveolens Gary S. Lester 1973-12-2 60 Humboldt in the city of Arcata Arcata Comment
  SDSU2585  Apocynum androsaemifolium D. F. Howe 1961-8-2 3117 Humboldt 23.5 miles east of Orick on Bald Mt. Road. 914 Comment
  RSA85397  Apocynum androsaemifolium subsp. pumilum E. K. Balls, Lee W. Lenz 1956-6-12 21661 Humboldt 4.4 mi SW from Willow Creek, along US Hwy. 299, Willow Creek to Arcata 366 Comment
  HSC44448  Aquilegia formosa Brad Klipfel 1975-5-30 657 Humboldt N of Horse Mtn. Comment
  HSC48762  Aquilegia formosa Brad Klipfel 1973-6-10 98 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  SEINET12093083  Aquilegia formosa F. H. Utech 1986-1 86 -391 Humboldt ca 5 mi N on Kings Peak Rd, from junction with Shelter Cove Rd, near Tolkan Recreation Area 480 Comment
  HSC57337  Arabis glabra Walter Overton, Butler 1979-7-26 10004 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1341 Comment
  HSC57436  Arabis glabra G. L. Clifton, Griswold 1979-7-26 10231 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  HSC71084  Arabis glabra M. A. Baker 1980-5-23 1389 Humboldt Near Buck Mtn. 1524 Comment
  UC162360  Arabis glabra Joseph P. Tracy 1908-6 2711 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC96269  Arabis puberula Eric Schori, Kazuyuki Ishimaru 2005-6-15 11 Humboldt 18 mi. S of Hwy. 299, above parking pullout 1400 Comment
  SBBG61283  Aralia californica R. Hartwell 1938-8-4 Humboldt Upper Bull Crk, Redwood Flat Comment
  UC1408964  Aralia californica Robert F. Thorne and P. Everett 1965-8-5 35137 Humboldt below summit Mt. Chamisal 579 Comment
  CAS-BOT-BC128698  Arbutus menziesii Doris K. Kildale 1927-12-1 4210 Humboldt Klamath River at Orleans Comment
  HSC31758  Arbutus menziesii Timothy B. Devine 1974-5-4 324 Humboldt Bank of Chezem Rd. at junction of Hwy. 299 457 Comment
  RSA639544  Arceuthobium tsugense subsp. tsugense Louis C. Wheeler 1952-9-15 6933 Humboldt North Fork, Mad River. Comment
  UC1222872  Arctium minus Joseph P. Tracy 1950-9-2 19351 Humboldt at, 3 mi s of Field's Landing Beatrice Comment
  JEPS38853  Arctostaphylos X media Joseph P. Tracy 1923-3-31 6171 Humboldt Table Bluff Northern Coast Region, around Humboldt Bay 60 Comment
  CAS-BOT-BC23741  Arctostaphylos columbiana C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. between Shelter Cove and Kenny Comment
  CAS-BOT-BC23756  Arctostaphylos columbiana Alice Eastwood 1907-4-21 12 Humboldt Trinidad Comment
  CAS-BOT-BC23763  Arctostaphylos columbiana H. E. Parks 1931-3-25 0917 Humboldt Near Patrick's Point Comment
  CAS-BOT-BC23792  Arctostaphylos columbiana C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. between Shelter Cove and Kenny. Comment
  CAS-BOT-BC23820  Arctostaphylos columbiana W. R. Dudley 1899-1-1 s.n. Humboldt Arcata Comment
  HSC62325  Arctostaphylos columbiana Ruby Van Deventer 1959-2-28 Humboldt Patrick's Point on Coastal Bluff Comment
  JEPS38969  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15171 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  RSA622681  Arctostaphylos columbiana Jon E. Keeley 1996-10-13 27787 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  UC585913  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13141 Humboldt vicinity of Trinidad Northern Coast Region 60 Comment
  CAS-BOT-BC23732  Arctostaphylos columbiana C. Hart Merriam 1921-7-7 s.n. Humboldt Ridges west of the Van Duzen River. Comment
  SEINET11998372  Arctostaphylos columbiana W. Knight, Knight, I. 1989-1 6476 Humboldt Patrick's Point State Park 24 Comment
  POM209627  Arctostaphylos columbiana var. columbiana H. E. Parks 1931-12 4950 Humboldt Hobson's Trinidad. 61 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
  HSC7629  Arctostaphylos glandulosa Unknown Humboldt 1 mi. W of Queens Rd. 610 Comment
  POM286175  Arctostaphylos glandulosa subsp. cushingiana Lyman Benson 1929-7-19 1592 Humboldt Dyerville to Matole River. Comment
  UC1222639  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1950-6-15 18795 Humboldt 7 mi n Harris; Mail Ridge 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
  RSA632809  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27763 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  BLMAR54  Arctostaphylos manzanita Jennifer Anthony-Wheeler 1994-2-14 54 Humboldt King range, growing along KR rd approx 2mi from rd end 228 Comment
  HSC48987  Arctostaphylos manzanita M. A. Baker 1979-5-25 761 Humboldt Comment
  RSA633018  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27810 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  HSC68139  Arctostaphylos nevadensis J. P. Smith, J. O. Sawyer 1973-5-12 6689 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  JEPS38787  Arctostaphylos nevadensis W. L. Jepson 1902-7-16 2047 Humboldt Trinity Summit 2133 Comment
  HSC70990  Arctostaphylos patula Gail Newton 1980-7-15 1577 Humboldt Near Sims Mtn. 1311 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
  CAS-BOT-BC47211  Arctostaphylos uva-ursi Josh Suchocki; Charlene Vullo; Kyle Wear 1995-4-15 101 Humboldt Manila. Comment
  HSC7731  Arctostaphylos uva-ursi L. H. Myers 1963-5-5 28 Humboldt W of Lanpheres Rd., Mad River slough area Comment
  SEINET2031083 Image available Arctostaphylos uva-ursi Joseph P. Tracy 1940-1 16740 Humboldt Sand dunes, near Samoa, on Humboldt Bay 6 Comment
  SEINET11984848  Arctostaphylos uva-ursi Unknown 1965-1 555 Humboldt 1.3 mi S of Samoa, Samoa Peninsula Comment
  UCD52156  Arctostaphylos uva-ursi var. coactilis Linda M. Barker 1976-4-13 1379 Humboldt Coastal forest and dunes 3 miles west of Arcata, Humboldt Co., California. Comment
  HSC70634  Arctostaphylos viscida R. York 1980-5-18 605 Humboldt Near Black Mtn. 390 Comment
  CAS-BOT-BC48258  Arctostaphylos viscida subsp. viscida L. B. Kildale 1930-6-1 9753 Humboldt Klamath River at Bluff Creek Comment
  SD42237  Arenaria douglasii Carl B. Wolf 1937-6-14 8822 Humboldt North Coast Range, Kneeland Prairie. 819 Comment
  HSC100936  Arenaria douglasii Miss Handy Jun 1886 338 Humboldt Dry hills, Maple Cr. Comment
  CAS-BOT-BC137569  Aristida oligantha Joseph P. Tracy 1933-8-27 13000 Humboldt Robertson's Range. Vicinity of Garberville. 121 Comment
  CAS-BOT-BC64584  Armeria maritima subsp. californica Ira L. Wiggins 1930-7-11 4683 Humboldt Near Samoa. Comment
  HSC48771  Armeria maritima subsp. californica Brad Klipfel 1975-5-22 618 Humboldt Near city of Eureka airport S of Samoa Comment
  HSC89499  Armeria maritima subsp. californica M. Roantree 1985-5-24 50 Humboldt N side of Trinidad Head on slope below trail. Comment
  HSC45266  Arnica cernua M. Alcasas 1978-6-3 113 Humboldt Horse Mtn. summit 1513 Comment
  HSC96075  Arnica cernua J. Breton, A. Livingston, J. Lumbert 2005-6-24 1 Humboldt Horse Mtn. radio tower, 1/2 mile from intersection of three F.S. roads, 4.5 miles from Hwy. 299 on Titlow Hill Rd. 1445 Comment
  HSC73701  Arnica discoidea M. A. Baker 1980-7-23 3142 Humboldt Near Orleans Mtn. 1859 Comment
  CAS-BOT-BC146270  Arrhenatherum elatius var. elatius H. S. Yates 1936-6-23 5851 Humboldt 2 miles east of mouth of Mad River. 30 Comment
  HSC58169  Artemisia douglasiana G. L. Clifton, Griswold 1979-8-2 12240 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  JEPS36982  Artemisia douglasiana W. L. Jepson 1936-8-12 17886 Humboldt Philipsville South Fork Eel River, Philipsville Comment
  SEINET11842962  Artemisia douglasiana F. H. Utech 1986-1 86 -412 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  CAS-BOT-BC97246  Artemisia suksdorfii Doris K. Kildale 1926-8-12 2491 Humboldt Moonstone Beach Comment
  UC303164  Aruncus dioicus var. pubescens Joseph P. Tracy 1923-9-16 6553 Humboldt near South Fork (Trinity River Valley); Northern Coast Ranges 182 Comment
  HSC65686  Asarum caudatum M. A. Baker 1980-6-7 1858 Humboldt Near Ammon Creek 732 Comment
  HSC63149  Asarum caudatum M. A. Baker 1979-6-28 941 Humboldt Comment
  HSC3273  Asarum hartwegii Doris K. Kildale 1926-5-2 1876 Humboldt Willow Creek Comment
  UCR111208  Asarum hartwegii D. E. Anderson 1965-5-1 3566 Humboldt Along Hwy 96, 1.9 mi. north of Willow Creek. 162 Comment
  HSC38092  Asclepias cordifolia Thomas W. Nelson, James Nelson 1976-5-30 2613 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC1052  Aspidotis densa P. W. Shields May 1955 Humboldt 4 mi. W of Hoopa Comment
  HSC71671  Aspidotis densa M. A. Baker 1980-6-26 2383 Humboldt Near Sims Creek 610 Comment
  HSC73069  Aspidotis densa M. A. Baker 1980-6-16 1952 Humboldt Near Onion Mtn. 1280 Comment
  HSC97473  Aspidotis densa Cara Witte 2007-5-23 91 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  CAS-BOT-BC65947  Aspidotis densa D. H. Norris 1970-5-20 12183 Humboldt on Big Hill Road east of Hoopa Comment
  RSA686365  Aspidotis densa Thomas W. Nelson, Jane Nelson 1976-7-1 2906 Humboldt Growing on serpentine ridge north of Bear Creek 1463 Comment
  RSA167201  Aster chilensis Joseph P. Tracy 1950-10-7 19383 Humboldt Berry's Mtn, E of Redwood Creek, on Trinity Hwy 549 Comment
Read comments
Aug 15 2009
  UC303178  Astragalus pycnostachyus var. pycnostachyus Joseph P. Tracy 1925-7-18 7217 Humboldt 3 mi s of point Cape Mendocino (southwestern slopes, fronting the ocean); Northern Coast Ranges, s Cape Mendocino 3 Comment
  UC33516  Astragalus rattanii var. rattanii Chesnut and Drew July 1888 Humboldt Mad River Comment
  UCD66901  Asyneuma prenanthoides John M. Tucker 1948-9-3 1859 Humboldt Friday Ridge Road, just below Black Rock (junction of Friday Ridge Road and the Horse Mountain - Grouse Mountain Road). Comment
  RSA333466  Athyrium filix-femina subsp. cyclosorum Dave Kelly, W. Wisura 1985-7-30 4069 Humboldt 4.7 miles south of Orleans, along highway 96 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
  JEPS35144  Athyrium filix-femina var. cyclosorum Lincoln Constance 1934-6-2 785 Humboldt S. Fork Eel River Comment
  UC922657  Athyrium filix-femina var. cyclosorum Annie M. Alexander and Louise Kellogg 1948-9-3 5573 Humboldt near Hoopa Reservation (above Trinity River Rd) Comment
  HSC93956  Atriplex gmelinii var. gmelinii Gordon Leppig 1999-10-25 1266 Humboldt Eureka, PALCO Marsh 1 Comment
  RSA424567  Atriplex patula T. S. Elias, Barbara A. Elias 1987-8-26 10623 Humboldt Fernbridge Comment
  CDA23297  Atriplex patula var. obtusa Gordon Leppig 1999-10-25 1266 Humboldt Eureka, PALCO Marsh Comment
  HSC38834  Avena barbata R. Sutherland 1976-8-18 6 .18876 Humboldt 195 Comment
  UC526704  Avena barbata Joseph P. Tracy 1933-5-20 12228 Humboldt 3 mi S of point of cape Cape Mendocino (SW slopes, fronting the ocean); Northern Coast Ranges 3 Comment
  HSC9026  Avena fatua Gene S. Van Horn 1962-5-23 26 Humboldt Arcata, at the corner of 13th St. and F St. 46 Comment
  HSC75513  Avena sativa J. O. Sawyer, R. J. Cole 1977-7-3 3002 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  UC503075  Azolla filiculoides Joseph P. Tracy 1927-7-16 8258 Humboldt Eureka; Northern Coast Ranges 0 Comment
  RSA15553  Baccharis douglasii C. B. Wolf 1927-8-30 1239 Humboldt Minor's Ranch Union Matole, 6 miles south of Petrolia Comment
  RSA47112  Baccharis pilularis Doris K. Kildale 1925-9-12 1326 Humboldt Salmon Creek near Miranda Comment
  UC204752  Baccharis pilularis Joseph P. Tracy 1918-9-29 5107 Humboldt 4 mi above mouth of South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  HSC78978  Baccharis pilularis subsp. consanguinea L. P. Janeway 1984-12-5 1192 Humboldt On the N Spit of Humboldt Bay; on the W side Samoa Rd. near the boat ramp 5 Comment
  HSC35033  Balsamorhiza deltoidea Thomas W. Nelson, James Nelson 1975-5-24 1850 Humboldt McKeown Ranch, N of Dinsmore. Comment
  POM36319  Balsamorhiza hookeri var. lagocephala Geo. D. Butler 1909-4-14 635 Humboldt Dry hill near Eureka Comment
Read comments
Dec 1 2014
  HSC48865  Barbarea orthoceras Brad Klipfel 1973-6-10 58 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC39161  Bellis perennis D. E. Anderson, J. P. Smith 1971-6-28 - 1243 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  JEPS31856  Bellis perennis Joseph P. Tracy 1937-6-20 15345 Humboldt 10 miles up from mouth of Bear River Bear River 152 Comment
  HSC97596  Berberis aquifolium var. aquifolium Steven Lee 2004-4-26 31 Humboldt Horse Mtn., 5 mi. up Titlow Hill Rd. from Hwy. 299 Comment
  BLMAR722  Berberis aquifolium var. repens Jennifer Wheeler 2014-4-9 722 Humboldt Lacks Creek, Along Pine Ridge Rd 1091 Comment
  CAS-BOT-BC75806  Berberis pinnata Doris K. Kildale; L. B. Kildale 1930-5-11 9540 Humboldt The Bald Hills near Tomlinson's. 792 Comment
  HSC26828  Blechnum spicant Clifton Raymond Chesbrough 1973-6-19 73 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  CAS-BOT-BC66271  Blechnum spicant A. M. Showalter 1925-8-12 s.n. Humboldt west of Orick Comment
  HSC91603  Blechnum spicant E. Mackey 1986-10-24 Humboldt Patrick's Point State Park, by trail to Agate Beach Comment
  JEPS53080  Boechera Joseph P. Tracy 1917-9-2 4838 Humboldt Grouse Mt. Northern Coast Ranges 1524 Comment
  UC902015  Boechera acutina Harold E. Parks and Joseph P. Tracy 1949-6-25 11678 Humboldt Box Camp Trinity Summit 1463 Comment
  HSC24555  Boschniakia hookeri Rudolf W. Becking 1972-6-30 720608 Humboldt Fish Lake area, Orleans 762 Comment
  HSC100314  Botrychium multifidum Lindsey Holm 2011-10-25 Humboldt Van Eck Forest near Fieldbrook. 7 Comment
  RSA109288  Boykinia occidentalis H. E. Parks, Susan T. Parks 1952-06 24451 Humboldt Spruce Cove, Trinidad. 61 Comment
  SDSU9503  Boykinia occidentalis Harvey 1938-8-13 2263 Humboldt Near Arcata. 85 Comment
  CAS-BOT-BC420252  Boykinia occidentalis Kenneth Clark 1980-6-14 690 Humboldt Point Delgada quad. north fork Dead Man's Gulch 121 Comment
  POM274466  Boykinia occidentalis Lyman Benson 1928-7-12 388 Humboldt Weott Ranger Station. Seaward N Coast mtn range. S Fork Eel River. 61 Comment
  UC303172  Boykinia occidentalis H. E. Parks and Joseph P. Tracy 1924-8-10 6804 Humboldt Van Duzen River near Strongs Station; Northern Coast Ranges, Van Duzen River 60 Comment
  HSC37950  Brassica nigra Peter Sorensen 1976-6-16 Humboldt Woodley Island, Humboldt Bay Comment
  CAS-BOT-BC36703  Brassica rapa John H. Thomas 1966-3-19 11487 Humboldt Southern end of Big Lagoon just inland from the coast between Eureka and Crescent City. Comment
  CAS-BOT-BC106293  Brickellia californica J. Clausen 1932-9-19 696 Humboldt Dyerville, Eel River, in dry river bed. Comment
  HSC25983  Brickellia californica Thomas W. Nelson 1970-9-3 232 Humboldt Mad River. Comment
  UC1199317  Brickellia californica Joseph P. Tracy 1922-10-8 6119 Humboldt near Blue Lake (Mad River gravel bar, Northern Coast Ranges); Northern Coast Ranges, Mad River 15 Comment
  JEPS18754  Brickellia greenei Joseph P. Tracy 1935-7-30 14361 Humboldt Salmon Summit 1767 Comment
  CAS-BOT-BC145430  Briza maxima P. B. Kennedy 1929-6-13 s.n. Humboldt Etterburg. Comment
  HSC100308  Briza maxima J. P. Smith 2011-5-4 13146 Humboldt New Navy Base Rd. SW of Samoa. 3 Comment
  HSC32011  Briza maxima J. D. Ackerman 1974-5-26 268 Humboldt 1 mi. S of Trinidad on Scenic Dr. Comment
  HSC37928  Briza maxima Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  HSC69631  Briza maxima R. Kalal 1980-6-3 28 Humboldt 0.25 mi. N of Hwy. 299 at Essex turnoff 15 Comment
  HSC79462  Briza maxima Kenneth Clark 1980-5-10 661 Humboldt Access road to Shelter Cove 30 Comment
  SEINET3132624  Briza maxima D. E. Anderson 1965-5-8 3626 Humboldt T6N, R2E, sec 29, about 1 mi E Blue Lake on Hwy 299 Comment
  SEINET12053182  Brodiaea coronaria L. K. Henry 1971-1 s.n. Humboldt along Rt. 36, 2 mi E of Dinsmore in Six River National Forest Comment
  SBBG10871  Brodiaea elegans subsp. elegans D. E. Breedlove 1961-7-4 650 Humboldt 10.9 mi W of Willow Crk on US Hwy 299 822 Comment
  UC1197749  Brodiaea elegans subsp. elegans Joseph P. Tracy 1946-7-13 17615 Humboldt 5 mi e Carlotta (open flat by old Strong's District School House) 60 Comment
  HSC3019  Brodiaea elegans subsp. elegans David Adams 1960-7-10 Humboldt W of Mad River Slough 0 Comment
  UC1197747  Brodiaea elegans subsp. elegans Joseph P. Tracy 1924-8-6 6780 Humboldt garden of Joseph P. Tracy, Eureka Comment
  JEPS512  Brodiaea stellaris Joseph P. Tracy 1928-6-24 8474 Humboldt at head Middle Yager Creek (grassy flat); East's Ranch 762 Comment
  POM160834  Brodiaea stellaris Joseph P. Tracy 1923-7-4 6526 Humboldt Valley of South Yager Creek. 762 Comment
  HSC90775  Brodiaea terrestris subsp. terrestris Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  CAS-BOT-BC144346  Bromus Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  UCD58190  Bromus carinatus A. A. Beetle; G. L. Stebbins Jr. and J. P. Tracy 1942-6-2 3477 Humboldt Head of South Yager Creek, near Yager. Comment
  BLMAR29  Bromus carinatus var. carinatus Brad Barr June, 1982 29 Humboldt King range, Spanish ridge facing south Comment
  HSC9142  Bromus carinatus var. carinatus W. F. Nickel 1965-3-17 Humboldt Humboldt State College campus behind College Elementary School. Comment
  UCD60204  Bromus catharticus var. elatus A. H. Murphy 1947-8-19 s.n. Humboldt Fairground's exper. area. Fortuna. Comment
  CHSC10108  Bromus diandrus J. W. Johnson 1962-4-18 1268 Humboldt Arcata. Along the lower lane below the W.M. Lanphere home, Samoa Peninsula. Comment
  HSC35281  Bromus diandrus J. D. Ackerman, A. M. Montalvo 1975-6-22 491 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36 Comment
  HSC9300  Bromus diandrus E. W. Styskel 1964-4-28 75 Humboldt End of Davis St. at the edge of Eel River in Rio Dell Comment
  HSC26275  Bromus hordeaceus Thomas W. Nelson 1971-5-31 465 Humboldt 915 Comment
  UC1131062  Bromus hordeaceus H. S. Yates 1936-6-17 5716 Humboldt near Burr Valley 914 Comment
  JEPS85494  Bromus laevipes L. R. Heckard with T. I. Chuang 1968-7-5 1984 Humboldt 4.3 mi n of Harris Road (Mail Ridge Road); Mail Ridge Road Comment
  HSC40577  Bromus orcuttianus Thomas W. Nelson, James Nelson 1976-7-28 3047 Humboldt W of Alder Springs along 2S08 1555 Comment
  HSC58820  Bromus orcuttianus Gilbert Muth 1979-8-1 12105 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  UC1103351  Bromus tectorum Joseph P. Tracy 1926-5-2 7423 Humboldt near the South Fork (Northern Coast Ranges, Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  UC552677  Bromus tectorum Joseph P. Tracy 1935-6-23 13981 Humboldt Northern Coast Ranges, French Camp Ridge French Camp Ridge; Northern Coast Ranges, French Camp Ridge 1066 Comment
  CAS-BOT-BC185516  Bromus vulgaris Harley P. Chandler 1901-5-1 1177 Humboldt North Coast Ranges. Humboldt Bay. 30 Comment
  CAS-BOT-BC185522  Bromus vulgaris Harley P. Chandler 1901-5-1 1177 Humboldt North Coast Ranges. Humboldt Bay. 30 Comment
  UCD60242  Bromus vulgaris A. H. Shunk 1923-7-12 s.n. Humboldt Briceland. Comment
  CAS-BOT-BC273303  Cacaliopsis nardosmia Doris K. Kildale 1926-4-18 1776 Humboldt McLellan [McClellan] Mountain 822 Comment
  UC673073  Cakile maritima Joseph P. Tracy 1940-9-21 16724 Humboldt near Samoa (on Humboldt Bay); Humboldt Bay 3 Comment
  CAS-BOT-BC36915  Cakile maritima var. maritima Joseph P. Tracy 1940-9-21 16724 Humboldt Near Samoa, on Humboldt Bay. 3 Comment
  HSC9395  Calamagrostis bolanderi R. L. Jarvis 1962-2-9 1 Humboldt Big Lagoon marsh, S of Hwy. 101 0 Comment
  SD112830  Calamagrostis canadensis D. F. Howe 1961-8-1 3103 Humboldt 6 miles north of Trinidad on Highway 101 Comment
  UC1145053  Calamagrostis foliosa Joseph P. Tracy 1938-6-17 15967 B Humboldt near Panther Gap (on road between Mattole and Bull Creek) 822 Comment
  HSC58672  Calamagrostis koelerioides Gilbert Muth 1979-8-1 12149 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC76546  Calamagrostis koelerioides Teresa Prendusi 1981-7-21 282 Humboldt Near Whiteys Peak 1646 Comment
  RSA10021  Calamagrostis koelerioides Joseph P. Tracy 1933-8-30 13008 Humboldt Horse Mountain. In open Forest of Jeferey Pine 1372 Comment
  UC552721  Calamagrostis koelerioides Joseph P. Tracy 1935-7-30 14371 Humboldt Salmon Summit 2011 Comment
  HSC17627  Calandrinia ciliata Elrid H. Spinas 1948-5-22 32 Humboldt Horse Mtn. Comment
  UC1922744  Callitriche heterophylla subsp. bolanderi Robert F. Thorne, P. Everett 1965-8-9 35345 Humboldt Along Hwy. 101 about 3 mi. N or Eureka. Comment
  UC1103691  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1913-5-11 4073 Humboldt Eureka Northern Coast Region (at Stephen Hill place) 0 Comment
  HSC73163  Calocedrus decurrens Gail Newton 1980-6-17 207 Humboldt Near Onion Mtn. 1341 Comment
  SBBG28816  Calocedrus decurrens D. K. Kildale 1926-8-15 2522 Humboldt Willow Crk Flat 152 Comment
  CAS-BOT-BC80383  Calocedrus decurrens H. E. McMinn 1922-7-1 278 Humboldt 1 mile east of Dinsmore Comment
  CAS-BOT-BC488457  Calochortus amabilis L. R. Abrams 1916-7-11 6980 Humboldt Between Blacksberg + Bridgeville Comment
  UCD18587  Calochortus amabilis Roman Gankin 1956-3-17 107 Humboldt off US Hwy 101, south boundary of Jenson Grove, near creek. Comment
Read comments
Feb 17 2006
  UC1197689  Calochortus luteus Joseph P. Tracy 1912-7-31 3891 Humboldt nw slope Buck Mountain; Northern Coast Ranges, , Burr Valley 1066 Comment
  CAS-BOT-BC494361  Calochortus tolmiei Volney Rattan 1879-1-1 s.n. Humboldt Ferndale Comment
  HSC15330  Calochortus tolmiei D. E. Anderson 1962-5-1 2192 Humboldt 1 mi. E of junction of Redwood Creek road and road to Hoopa Comment
  UC1197687  Calochortus tolmiei Joseph P. Tracy 1913-6-10 4086 Humboldt Bridgeville Northern Coast Ranges 228 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-BC273316  Calycadenia fremontii Joseph P. Tracy 1938-8-14 16117 Humboldt South Fork of Trinity River 304 Comment
  RSA725961  Calypso bulbosa var. occidentalis Richard G. Swinney 1968-4-5 241 Humboldt North Coast: Lanpheres Preserve, west of Arcata. 3 Comment
  UCR178929  Calypso bulbosa var. occidentalis R. G. Swinney 1968-4-5 241 Humboldt North Coast, Lanphere's Preserve, west of Arcata 15 Comment
  HSC32128  Calyptridium monospermum D. E. Anderson, T. Nelson, S. Dowty 1972-6-14 5604 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC75952  Calyptridium monospermum Overton, Butler 1979-7-24 9736 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC38127  Calyptridium monospermum Thomas W. Nelson, Jane P. Nelson 1976-5-23 2518 Humboldt S facing slope of Goat Hill, Lassics 1666 Comment
  SEINET5058650  Calystegia sepium Unknown 2002-8-22 84 Humboldt Along Fischer Road just N of the Mad River. Comment
  HSC59205  Calystegia soldanella Terry Roth 1979-5-24 81 Humboldt Samoa Dunes near the U.S. Coast Guard Station 5 Comment
  HSC6367  Calystegia soldanella J. R. Woodside 1963-5-11 6 Humboldt 1.25 mi. N of Fairhaven Comment
  SD42477  Calystegia soldanella Carl B. Wolf 1937-6-18 8902 Humboldt Centerville Beach. 3 Comment
  SEINET12330004  Calystegia soldanella F. H. Utech 1986-1 86 -402 Humboldt Cape Mendocino, along Pacific Ocean 5 Comment
  POM202655  Camassia M. S. Jussel 1931-5-1 s.n. Humboldt On road to Garberville Comment
  UC302169  Camassia quamash Joseph P. Tracy 1925-7-5 7179 1/2 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC104413  Camassia quamash Adam N. Canter 2017-5-12 7 Humboldt Table Bluff Ecological Reserve Comment
  HSC15437  Camassia quamash subsp. linearis Gerald T. Rood 1962-5-6 17 Humboldt Kneeland Road ca. 1 mi. W of Barry Rd. Comment
  HSC59459  Camissonia cheiranthifolia M. A. Ericksen 1979-5-18 298 Humboldt Samoa Dunes, .5 mi. S of Simpson Timber Company plant entrance Comment
  SEINET10453135  Camissonia cheiranthifolia Mary Merello 1993-6-19 Merello 664 Humboldt Along Petrolia-Capetown Road. Pacific Coastal dunes. 40 Comment
  HSC48807  Camissonia strigulosa Brad Klipfel 1975-5-22 619 Humboldt Near the city of Eureka airport S of Samoa Comment
  CHSC1144  Camissoniopsis cheiranthifolia subsp. cheiranthifolia M. Underhill 1952-7-13 Humboldt Seashore. 0 Comment
  CAS-BOT-BC160237  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Doris K. Kildale 1925-9-28 1356 Humboldt Samoa Peninsula Comment
  SEINET10939001  Campanula prenanthoides Overton 1979-7-24 OVERTON 9585 Humboldt Near Titlow Hill, on the Willow Creek quad., close to the town of Willow Creek 1250 Comment
  SEINET10463014  Campanula prenanthoides Wolf 1937-8-13 WOLF 9215 Humboldt 8 MI E OF HOOPA VALEY ON RD TOWARDS TRINITY SUMMIT 4000 Comment
  UC416597  Campanula prenanthoides Harley P. Chandler 1901-6-14 1476 Humboldt Orleans to Somes Bar; Klamath River 304 Comment
  SEINET10463440  Campanula scouleri Willis L. Jepson 1902-7-30 Jepson 2128 Humboldt THREE CREEKS TO REDWOOD CREEK 914 Comment
  SEINET10463476  Campanula scouleri Kildale 1937-7-18 KILDALE 15143 Humboldt HORSE MOUNTAIN Comment
  HSC6629  Capsella bursa-pastoris S. J. Roberts 1965-4-8 11 Humboldt 0.5 mi. S of junction of Alliance Rd. and Hwy. 101 Comment
  RSA273405  Cardamine breweri var. orbicularis Thomas W. Nelson, J. P. Smith 1976-4-25 2382 Humboldt Humboldt County: T3N, R1N, S29, Brzil Ranch E of Hwy 101 near college of Redwoods. Comment
  HSC36518  Cardamine californica J. D. Ackerman, A. M. Montalvo 1973-5-6 61 Humboldt 5 mi. from Weott on Bull Creek Flat Rd. 274 Comment
  HSC70563  Cardamine californica M. A. Baker 1980-7-19 3032 Humboldt Near Bret Hole. 1814 Comment
  HSC95664  Cardamine californica Kevin Thomas 2004-3-6 1 Humboldt Along beach access trail to College Cove Comment
  SEINET11993905  Cardamine californica J. P. Tracy 1950-1 18651 Humboldt on Redwood House Road, S of Redwood House 1 mi, on Yager Slope (head of South Yager Creek) Comment
  UC30033  Cardamine californica W. C. Blasdale 1896-6-9 Humboldt Fitzgeralds Comment
  UC249682  Cardamine californica var. sinuata Joseph P. Tracy 1921-3-20 5426 Humboldt 12 mi e Hydesville (Van Duzen River at Blue Slide); Northern Coast Ranges, Van Duzen River at Blue Slide 91 Comment
  UC668051  Cardamine californica var. sinuata Joseph P. Tracy 1938-5-8 15739 Humboldt Blue Slide on Van Duzen River; on Van Duzen River, Blue Slide 91 Comment
  HSC60299  Cardamine nuttallii Phyllis Krieg 1979-5-8 Humboldt 0.25 mi. E of Old Arcata Rd. on Golf Course Rd., Bayside, next to a house 15 Comment
  UC1199197  Cardamine nuttallii var. covilleana Joseph P. Tracy 1938-6-13 15897 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC37893  Cardamine oligosperma W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula. Comment
  HSC26791  Cardamine oligosperma Thomas W. Nelson 1971-4-27 426 Humboldt Along Jolly Giant Creek, HSU campus Comment
  POM118630  Cardamine oligosperma Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  CAS-BOT-BC384768  Cardionema ramosissimum Ira L. Wiggins 1930-7-11 4687 a Humboldt Sand dunes near Samoa Comment
  CDA18240  Cardionema ramosissimum G. D. Barbe, T. C. Fuller 1974-6-19 1878 Humboldt North Coast Ranges; Mad River mouth, at end of Iversen Lane, Tyee City. 7 Comment
  CAS-BOT-BC282967  Carduus pycnocephalus Kenneth Clark 1980-3-1 502 Humboldt Dead Man's Gulch 15 Comment
  CDA18246  Carduus tenuiflorus G. D. Barbe, T. C. Fuller 1974-6-18 1884 Humboldt North Coast Ranges; Fortuna bottoms, Grizzly Bluff; Waddington Rd. 1/4 mi N of Pleasant Point Rd. (Ferndale Bottoms) 2 mi N of Grizzly Bluff Rd. 0 Comment
  POM296860  Carex Lyman Benson 1929-7-16 1843 Humboldt Weott Ranger Station. Comment
  HSC70474  Carex aquatilis var. dives J. P. Tracy 1912-6-16 3702 Humboldt Hookton, around Humboldt Bay 0 Comment
  CAS-BOT-BC18009  Carex arcta Joseph Prince Tracy 1934-7-13 13389 Humboldt Dow's Prairie. 60 Comment
  UC303008  Carex arcta Joseph P. Tracy 1926-7-5 7723 Humboldt near Redwood House (on road to head of Yager); Northern Coast Ranges 609 Comment
  JEPS63598  Carex barbarae Lincoln Constance 1934-6-7 772 Humboldt Cabin Creek Bridge, on Bull Creek Road Comment
  CAS-BOT-BC19434  Carex bolanderi Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mountain Trail. 1371 Comment
  CAS-BOT-BC19435  Carex bolanderi Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mountain. 1524 Comment
  CAS-BOT-BC19438  Carex bolanderi Doris K. Kildale 1927-7-23 3800 Humboldt Hoaglin Lake near Lassicks Peak [Lassics Lookout?]. Comment
  HSC44058  Carex bolanderi Thomas W. Nelson, James Nelson 1976-7-28 3076 Humboldt Between Alder Springs and road to Pine Mtn. 1524 Comment
  HSC70165  Carex bolanderi Thomas W. Nelson 1978-6-10 4417 Humboldt Behind the Seventh-Day Adventist Church on F St. 61 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
  HSC96498  Carex buxbaumii Gordon Leppig 1999-7-9 1183 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  HSC95814  Carex canescens Juha Pykala, D. H. Norris 1987-6-10 1473 Humboldt 4.5 mi. N of Weitchpec, Blue Lake 838 Comment
  UC585641  Carex deweyana subsp. leptopoda J. P. Tracy 1937-6-20 15353 Humboldt Bear River, 10 mi up stream from the mouth 152 Comment
  SDSU11699  Carex deweyana subsp. leptopoda W. A. Bemis 1964-5-4 274 Humboldt Freshwater Forest, Freshwater. (SE1/4, SE1/4, Sec. 28, T6N, R1E, HBM. 98 Comment
  JEPS109270  Carex diandra D. W. Taylor 2004-6-23 19127 Humboldt Pond on the divide between Frost Creek and Martin Creek, about 1 air mile e of the Alderpoint road. Comment
  CAS-BOT-BC20076  Carex echinata Joseph Prince Tracy 1926-6-27 7666 Humboldt Northern Coast Ranges. Horse Mountain. 1463 Comment
  HSC96492  Carex echinata subsp. phyllomanica Gordon Leppig 1998-6-8 798 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  CAS-BOT-BC19965  Carex exsiccata Joseph Prince Tracy 1938-9-25 16170 Humboldt Bald Mountain: at Lake Prairie. 1066 Comment
  CAS-BOT-BC19968  Carex exsiccata Milo S. Baker 1927-8-21 24706 Humboldt Near Bald Mountain. 914 Comment
  HSC70468  Carex fracta Gail Newton 1980-7-20 1635 Humboldt Near Bell Swamps 1426 Comment
  CHSC45239  Carex geyeri L. P. Janeway 1984-6-17 845 Humboldt On ridge east of Horse Mtn. 1432 Comment
  UC213330  Carex gynodynama Joseph P. Tracy 1920-5-18 5324 Humboldt Northern Coast Ranges: On South Fork, 5 miles above Dyerville. Along Eel River from South Fork to Scotia. Comment
  CAS-BOT-BC22315  Carex harfordii Alice Eastwood; John Thomas Howell 1937-6-23 4791 Humboldt Near Dinsmores. Comment
  CAS-BOT-BC22318  Carex harfordii Joseph Prince Tracy 1938-6-15 15934 Humboldt Vicinity of Carlotta. 30 Comment
  CAS-BOT-BC21751  Carex hassei Joseph Prince Tracy 1927-4-23 7917 Humboldt Big Lagoon. 6 Comment
  CHSC34064  Carex hendersonii Joseph P. Tracy 1905-6-25 2202 Humboldt Northern Coast Region of California. At Eureka. 30 Comment
  CAS-BOT-BC7792  Carex laeviculmis Joseph Prince Tracy 1930-7-16 8985 Humboldt South Fork Mountain. At McKay Camp. 1676 Comment
  RSA22169  Carex leptopoda Joseph P. Tracy 1937-6-20 15353 Humboldt Bear river, ten miles up stream from the mouth 152 Comment
  CAS-BOT-BC31464  Carex leptopoda Joseph Prince Tracy 1913-6-22 4267 Humboldt Dinsmore's Ranch, in valley of Van Duzen River opposite Buck Mountain. 762 Comment
  SEINET10710170  Carex leptopoda David Castaner 1989-6-19 Castaner 10248 Humboldt Fern Canyon. Comment
  JEPS79830  Carex luzulina Joseph P. Tracy Jul 16 1930-Jul 19 1930 8987 Humboldt South Fork Mountain at McKay Camp, Northern Coast Ranges South Fork Mountain; Northern Coast Ranges, South Fork Mt., McKay Camp 1676 Comment
  HSC93773  Carex lyngbyei Gordon Leppig 1996-5-17 333 Humboldt Arcata, Arcata Marsh and Wildlife Sanctuary, Butcher Slough, E side about 20 m N of Interpretive Center Parking lot, just W of South I St. 1 Comment
  SEINET7483608 Image available Carex mendocinensis Ray Tallent 1987-1 894 Humboldt Six Rivers National Forest; Roadside S of Horse Mtn 1420 Comment
  HSC102622  Carex microptera M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1609 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC709322  Carex multicostata Joseph P. Tracy 1939-7-9 16316 Humboldt 1 mi n Murphy Meadows; Bald Mt. 914 Comment
  HSC48135  Carex nudata D. H. Norris 1971-7-17 19598 Humboldt Along Redwood House Rd., 4 mi. W of intersection with Kneeland-Bridgeville Rd. Comment
  HSC79284  Carex nudata L. P. Janeway 1984-5-13 777 Humboldt Along N fork of Yager Creek, 18 mi. E of Kneeland Post Office 381 Comment
  HSC37945  Carex obnupta P. D. Sorensen 1976-6-12 Humboldt Humboldt Bay, Woodley Island Comment
  HSC76817  Carex obnupta L. P. Janeway 1982-6-12 5 Humboldt Dry Lagoon 3 Comment
  UC1133418  Carex obnupta H. S. Yates 1936-6-18 5730 Humboldt near mouth Little River; Eureka Quadrangle Comment
  HSC59577  Carex obnupta Rick Lundquist 1979-5-18 112 Humboldt Clam Beach Ponds 0 Comment
  POM250761  Carex obnupta D. D. Keck 1938-8-5 4770 Humboldt Big Lagoon, among rocks in open spots on beach Comment
  CAS-BOT-BC119234  Carex pachystachya Joseph Prince Tracy 1930-7-10 8868 Humboldt Brannan Mountain 1219 Comment
  HSC98935  Carex pachystachya Cara Witte 2007-7-8 444 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  SEINET10949620  Carex pachystachya Joseph P. Tracy 1935-6-8 Tracy 13936 Humboldt Eureka. In woods. Comment
  UC562663  Carex pachystachya Joseph P. Tracy 1927-5-29 8077 Humboldt Big Lagoon Northern Coast Region 6 Comment
  CAS-BOT-BC119164  Carex pansa Joseph Burtt Davy; Walter Charles Blasdale 1899-5-1 6218 Humboldt Eureka Comment
  RSA246858  Carex pansa Robert F. Thorne, Percy C. Everett 1965-8-5 35165 Humboldt Samoa Dunes. 3 Comment
  CAS-BOT-BC119163  Carex pansa Joseph Prince Tracy 1935-7-18 14104 Humboldt Low sandy ground at edge of salt marsh, next to Table Bluff. Around Humboldt Bay. 3 Comment
  CAS-BOT-BC118231  Carex scopulorum var. bracteosa Joseph Prince Tracy 1932-7-14 10562 Humboldt Trinity Summit. Coral Prairie. 1584 Comment
  HSC98943  Carex serratodens Cara Witte 2007-6-4 196 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  SEINET7486520 Image available Carex subbracteata Peter F. Zika 2009-6-16 24497 Humboldt bove Chezen Road, at junction with Route 299, Outer North Coast Range (NCoRO), between Lord-Ellis and Berry summits 150 Comment
  UC194813  Carex tumulicola Joseph P. Tracy 1906-6-24 2507 Humboldt near, Humboldt Hill, region about Humboldt Bay Fields Landing; Northern Coast Region 0 Comment
  UCD140938  Carex tumulicola Collector Unknown 1940-6-27 s.n. Humboldt Miranda. Comment
  UC1115821  Carex unilateralis Joseph P. Tracy 1938-7-5 16007 Humboldt old Strong's District School House, 5 miles E of town 45 Comment
  UC1152066  Carex unilateralis Joseph P. Tracy 1950-7-6 18989 Humboldt Burr Valley; on NW slopes of Buck Mountain 1066 Comment
  UC562649  Carex unilateralis Joseph P. Tracy 1927-7-17 8276 Humboldt Three Cabins; lower western foothills of Chaparral Mountain 457 Comment
  RSA167278  Carex utriculata Joseph P. Tracy 1950-8-7 19264 Humboldt Meadow at Box Camp, Trinity Summit. 1524 Comment
  UC562325  Carex vesicaria var. major Joseph P. Tracy 1934-7-30 13502 Humboldt along coast in front of South End Stone Lagoon (Dry Lagoon) 3 Comment
  UC562342  Carex vesicaria var. major Joseph P. Tracy 1934-8-14 13574 Humboldt Alton North Coast Ranges, Van Duzen River 30 Comment
  RSA246874  Carex viridula Robert F. Thorne 1965-8-7 35198 Humboldt Big Lagoon, south end. 2 Comment
  CAS-BOT-BC249127  Castilleja affinis Doris K. Kildale 1927-7-10 3737 Humboldt Gans Prairie Comment
  CAS-BOT-BC249132  Castilleja affinis Alice Eastwood; John Thomas Howell 1937-6-23 4837 Humboldt 11 miles from Kneeland on road to Yager Comment
  HSC98626  Castilleja affinis subsp. affinis Cara Witte 2007-6-4 185 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC1196741  Castilleja affinis subsp. affinis Joseph P. Tracy 1942-7-1 17366 Humboldt opposite Buck Mountain (Dinsmore's, along Van Duzen River); Van Duzen River 762 Comment
  BLMAR667  Castilleja affinis subsp. litoralis Jennifer Wheeler 2012-7-12 667 Humboldt King range, Strawberry rock 253 Comment
  JEPS66407  Castilleja affinis subsp. litoralis L. R. Heckard with T. I. Chuang 1971-7-1 2667 Humboldt 2 mi sw Orick (s end of Freshwater Lagoon); Freshwater Lagoon Comment
  HSC32442  Castilleja ambigua subsp. humboldtiensis Linda M. Barker 1974-4-14 143 Humboldt South G St., Arcata 0 Comment
  HSC90806  Castilleja ambigua subsp. humboldtiensis Gail Newton 1982-5-2 2508 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC91171  Castilleja ambigua subsp. humboldtiensis Leonel Arguello 1989-6-11 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  POM92403  Castilleja ambigua subsp. humboldtiensis L. R. Abrams 1922-6-25 8249 Humboldt Humboldt Bay, east of Arcata. Comment
  HSC64182  Castilleja applegatei subsp. pinetorum J. O. Sawyer, M. A. Ericksen 1979-6-23 3393 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  UC604634  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1938-5-1 15732 Humboldt Willow Creek; Trinity River Valley 152 Comment
  HSC20838  Castilleja attenuata R. T. Forester 1963-5-6 43 Humboldt 1 mi. S of Fairhaven on Samoa Rd. Comment
  UC168996  Castilleja attenuata Mrs. M. H. Manning May 1902 Humboldt Hupa Comment
  HSC55751  Castilleja miniata G. L. Clifton, Griswold 1979-7-26 10283 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UC582577  Castilleja miniata Joseph P. Tracy 1932-7-14 10545 Humboldt Corral Prairie; Trinity Summit 1584 Comment
  CAS-BOT-BC244879  Castilleja miniata Mrs. H. C. Cantelow 1935-5-31 836 Humboldt 15 mi. N. of Orick Comment
  JEPS82239  Ceanothus Roger Raiche 1983-7-18 30529 Humboldt 0.6 mi n intersection of Shelter Cove Rd (King Peak Rd); King Range Comment
  UC1502127  Ceanothus R. Sutherland 1975-7-1 2 .1.7 75 Humboldt along Baker Creek; Garberville Quad., along Baker Creek 335 Comment
  HSC55626  Ceanothus cordulatus Overton, Butler 1979-7-24 9605 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  POM126157  Ceanothus cuneatus Joseph P. Tracy 1922-4-30 5998 Humboldt Trinity River Valley, near Willow Creek. 152 Comment
  JEPS82329  Ceanothus foliosus var. foliosus Roger Raiche 1983-7-18 30531 Humboldt King Peak Road, 2.4 mi N of road to Shelter Cove King Range 518 Comment
  CAS-BOT-BC50053  Ceanothus incanus Joseph P. Tracy 1935-5-25 13824 Humboldt Larrabee Creek, near Bosworth's 304 Comment
  UC535732  Ceanothus incanus Eleanor Armstrong 1934-8-15 1187 Humboldt Richardson Grove 121 Comment
  UC166023  Ceanothus integerrimus Joseph P. Tracy 1911-7-7 3427 Humboldt ridge to n Willow Creek (between Willow and Campbell Creek, near summit.); Brannan Mtn., Northern Coast Ranges 1219 Comment
  UCR32170  Ceanothus integerrimus David J. Keil 1983-7-2 17325 Humboldt c. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  UC1193304  Ceanothus parryi R. H. Neuns 1950-7-13 127 Humboldt 3 miles sosuth of Alder Point 548 Comment
  UC1071292  Ceanothus prostratus A. E. Wieslander 1931-5-19 203 Humboldt near Orleans; Klamath Forest, Hoopa Quadrangle Comment
  BLMAR200  Ceanothus thyrsiflorus Donald Hazlett 1994-6-7 200 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC52953  Ceanothus thyrsiflorus Doris K. Kildale 1927-5-14 3290 Humboldt Big Lagoon Comment
  CAS-BOT-BC52990  Ceanothus thyrsiflorus Duncan Dunning 1921-10-2 705 Humboldt Trinidad 30 Comment
  HSC18337  Ceanothus thyrsiflorus H. E. Parks Apr 1934 4229 Humboldt Spruce Cove, Trinidad 64 Comment
  HSC37064  Ceanothus thyrsiflorus R. Sutherland 1975-5-28 5 .28575 Humboldt Horse Mtn., N Fork Horse Mtn. Creek 457 Comment
  HSC45658  Ceanothus thyrsiflorus Diane L. Reed 1978-4-29 43 Humboldt Trinidad Head Comment
  POM118613  Ceanothus thyrsiflorus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  RSA172183  Ceanothus thyrsiflorus Robert F. Thorne 1957-9-2 19005 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UCD170772  Ceanothus thyrsiflorus Gordon Leppig 1998-5-11 756 Humboldt Rt. #101 mile marker 97.71. 30 Comment
  BLMAR733  Ceanothus velutinus Jennifer Wheeler 2015-4-23 733 Humboldt Lacks Creek, End of Pine Ridge Rd 1136 Comment
  CAS-BOT-BC52871  Ceanothus velutinus Carl B. Wolf 1927-8-30 1242 Humboldt Paradise, 5 or 6 mi. n. of Ettersburg Comment
  RSA46890  Ceanothus velutinus var. laevigatus Doris K. Kildale 1926-4-25 1812 Humboldt Hoopa Mt. Comment
  HSC56191  Ceanothus velutinus var. velutinus Gilbert Muth 1979-8-1 12131 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  SEINET200849  Centaurea cyanus Joseph P. Tracy 1918-7-1 4963 Humboldt Along Eel River from South Fork to Scotia; Holmes Flat 61 Comment
  UC302186  Centaurea solstitialis Joseph P. Tracy 1926-8-22 7772 Humboldt McClellan Mountain North Coast Ranges, McClellan Mountain 609 Comment
  RSA167189  Centaurea solstitialis Joseph P. Tracy 1943-11-28 17452 Humboldt Eel River bar at mouth of Van Duzen near Alton Comment
  SEINET11860764  Centaurea solstitialis J. P. Tracy 1948-9-20 18216 Humboldt vicinity of Hosler Creek, Hoopa Valley 107 Comment
  RSA43683  Centaurium floribundum H. M. Pollard 1948-7-21 s.n. Humboldt Along Klamath River near Orleans. Comment
  UC1225819  Centaurium muehlenbergii Joseph P. Tracy 1948-9-20 18217 Humboldt Hoopa Valley 91 Comment
  HSC97246  Centaurium muehlenbergii Thomas W. Nelson, Dick Brummitt & Barbara Ertter 2004-7-4 9280 Humboldt Trinity River bar down stream from mouth of Willow Creek 152 Comment
  RSA171942  Centaurium muehlenbergii Robert F. Thorne 1957-9-2 18993 Humboldt Burlington State Park, just S of Weott. Comment
  UC1225817  Centaurium muehlenbergii Joseph P. Tracy 1948-8-22 18109 Humboldt 4 mi e Carlotta (on Van Duzen River); Van Duzen River 30 Comment
  UC154177  Centunculus minimus Harley P. Chandler May, 1901 1180 Humboldt North Coast Ranges, Humboldt Bay Humboldt Bay; North Coast Ranges, Humboldt Bay 30 Comment
  UC1196470  Cephalanthera austiniae Joseph P. Tracy 1932-7-20 10734 Humboldt Trinity Summit near Corral Prairie; Trinity Summit 1584 Comment
  CAS-BOT-BC384901  Cerastium arvense Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC12544  Cerastium fontanum subsp. vulgare C. Kline 1970-11-9 63 Humboldt Bayside Rd., .5 mile N of Bayside Comment
  HSC83997  Cerastium glomeratum L. P. Janeway, C. K. Geldin-Meyers 1983-4-15 220 Humboldt Field around the new Science and Engineering Bldg., HSU campus 30 Comment
  JEPS51355  Cerastium viride Lincoln Constance 1934-6-3 805 Humboldt on Redwood Hwy. 1 mi. n. Dyerville (rd. from High Rock to Horse Prairie); S. Fork Eel R., Bull Creek Region Comment
  SD42481  Cerastium viride Carl B. Wolf 1937-6-18 8883 Humboldt Table Bluff, between Humboldt Bay and Eel River. Comment
  HSC60028  Cercis occidentalis M. A. Baker 1977-6-6 369 Humboldt Hoopa Comment
  HSC73149  Cercis occidentalis M. A. Baker 1980-5-18 1344 Humboldt Near Black Mtn. 792 Comment
  UC673250  Cercis occidentalis Lincoln Constance and Reed C. Rollins 1942-5-12 2895 Humboldt bluffs at junction of Klamath River and Salmon River (1 mi s of Somes Bar); Klamath-Siskiyou Region 152 Comment
  HSC36776  Cercocarpus montanus var. glaber Brent Whitely 1975-7-10 154 Humboldt 198 Comment
  HSC57698  Chaenactis douglasii var. douglasii G. L. Clifton, Griswold 1979-7-25 10927 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC170197  Chamaesyce serpyllifolia Joseph Burtt Davy and Walter C. Blasdale 1899-6-20 5710 Humboldt Hoopa Valley Comment
  HSC102109  Cheilanthes gracillima M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1012 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC55201  Cheilanthes gracillima Overton 1979-8-1 12308 Humboldt Near Mill Cr., close to the town of Hoopa 1402 Comment
  HSC75939  Cheilanthes gracillima Overton, Butler 1979-7-24 9702 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  RSA685760  Cheilanthes gracillima Henry M. Pollard 1948-7-24 s.n. Humboldt Near Orleans. Comment
  JEPS59716  Chenopodium ambrosioides Lincoln Constance 1934-5-27 695 Humboldt Dyerville Bridge South Fork Eel River, Bull Creek Region (s end, gravel bar of river) 45 Comment
  CAS-BOT-BC460963  Chenopodium atrovirens Joseph P. Tracy 1932-7-13 10500 Humboldt Trinity Summit: open places at Corral Prairie 1584 Comment
  UC673037  Chenopodium multifidum Joseph P. Tracy 1934-8-4 13552 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC102586  Chimaphila menziesii M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1573 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC98134  Chimaphila menziesii Cara Witte 2007-6-26 358 Humboldt Horse Mountain Botanical Area. 1341 Comment
  UC154039  Chimaphila umbellata Joseph P. Tracy 1908-6 2879 Humboldt opposite Buck Mt.; Northern Coast Ranges, valley of Van Duzen R. 762 Comment
  UC314637  Chimaphila umbellata Joseph P. Tracy 1926-8-29 7777 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  HSC41307  Chrysolepis chrysophylla Brad Klipfel 1974-7-23 470 Humboldt Horse Mountain Comment
  RSA20963  Chrysolepis chrysophylla Carl B. Wolf 1937-9-13 9338 Humboldt North Coast Range, summit of Grouse Mt. 1645 Comment
  CAS-BOT-BC36476  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1934-8-29 13641 Humboldt Northern Coast Ranges. South Fork Mountain, along summit near Blake lookout 1706 Comment
  UC665684  Chrysolepis chrysophylla var. minor J. P. Tracy and H. E. Parks 1941-8-28 11541 Humboldt Blake Lookout area; South Fork Mountain 1706 Comment
  CAS-BOT-BC279831  Cichorium intybus Doris K. Kildale 1926-7-22 2428 Humboldt Metropolitan Comment
  UC642241  Cicuta douglasii Joseph P. Tracy 1927-9-25 8379 Humboldt 2 mi s of Field's Landing (near Still Ranch) 6 Comment
  CAS-BOT-BC284402  Cirsium arvense Alice Eastwood 1923-8-14 12317 Humboldt Samoa Comment
  HSC5373  Cirsium arvense Paul Shields 1955-9-29 Humboldt 1/2 mi. S Fernbridge 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
  UC582528  Cirsium arvense Joseph P. Tracy 1933-8-30 13013 Humboldt Grouse Mountain 1524 Comment
  UC166540  Cirsium brevistylum J. P. Tracy 1903-8-9 1935 Humboldt immediate vicinity of Eureke; Eureka 0 Comment
  CAS-BOT-BC284439  Cirsium brevistylum Peter H. Raven; R. Snow 1958-7-21 13648 Humboldt Along Titlow Hill Road 0.7 miles south of United States Highway 299 Comment
  JEPS23566  Cirsium brevistylum Peter H. Raven, R. Snow 1958-7-20 13648 Humboldt 0.7 mi s U.S. Highway 299 (along Titlow Hill Road); Titlow Hill Road Comment
  HSC40678  Cirsium douglasii var. breweri Thomas W. Nelson 1976-7-9 2987 Humboldt Along 1S07 just W of summit 1585 Comment
  CDA1218  Cirsium douglasii var. douglasii T. C. Fuller 1962-8-6 9352 Humboldt Hwy 299, 3.4 miles east of Berry Summit. Comment
  UC912553  Cirsium douglasii var. douglasii Herbert L. Mason 1932-7-21 7107 Humboldt on road from Arcata to Weaverville (e slope of South Fork Mountains); North Coast Ranges Comment
  CAS-BOT-BC285528  Cirsium occidentale var. candidissimum John Thomas Howell 1937-7-31 13713 Humboldt Trinity River Canyon 2 miles west of Trinity Co. line Comment
  UC582533  Cirsium remotifolium var. odontolepis Joseph P. Tracy 1930-7-21 8887 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  RSA167261  Cirsium remotifolium var. rivulare Joseph P. Tracy 1947-6-8 17711 Humboldt Carlotta; open flat by old Strong's District School House, 5 miles east of town. 61 Comment
  HSC32535  Cirsium vulgare Thomas W. Nelson 1973-9-3 1127 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1119200  Cirsium vulgare H. L. Person 1932-7-21 Humboldt Blue Lake Eureka Quadrangle, Blue Lake Comment
  UC179915  Cirsium vulgare Joseph P. Tracy 1914-9-13 4629 Humboldt Eureka 0 Comment
  JEPS23479  Clarkia amoena subsp. amoena Joseph P. Tracy 1938-6-17 15957 Humboldt s of point Cape Mendocino (near ocean shore) 3 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
  JEPS43698  Clarkia amoena subsp. amoena Milo S. Baker 1923-8-3 172 Humboldt near Trinidad; North Coast Comment
  HSC8649  Clarkia amoena subsp. huntiana Thomas W. Nelson, James Nelson 1975-9-3 2191 Humboldt Along N side of Ashfield Butte Comment
  CAS-BOT-BC164176  Clarkia concinna M. S. Jussel 1931-5-2 s.n. Humboldt Near Garberville Comment
  UC169900  Clarkia concinna subsp. concinna Mrs. M. H. Manning 1901-1 75 Humboldt near Hupa Comment
  UC20004  Clarkia concinna subsp. concinna Harley P. Chandler June, 1901 1325 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC162342  Clarkia davyi Joseph P. Tracy 1911-6-25 3256 Humboldt bluffs back of Bucksport (region about Humboldt Bay); Northern Coast Region 0 Comment
  HSC35351  Clarkia gracilis J. D. Ackerman, A. M. Montalvo 1975-6-22 485 Humboldt 6.4 mi. W of Dinsmore, Hwy. 36 Comment
  UC594157  Clarkia purpurea S. K. Harris, J. P. Tracy 1936-6-10 3277 Humboldt near mouth South Fork Trinity River (hills w of river) 640 Comment
  CAS-BOT-BC172502  Clarkia purpurea subsp. quadrivulnera L. R. Abrams 1916-7-11 6028 Humboldt Mouth of Grizzly Creek on Van Duzen River Comment
  UCSB23037  Clarkia purpurea subsp. quadrivulnera Tracy, Joseph 1936-6-10 Humboldt south fork of Trinity river; mountain slopes west of its mouth 457 Comment
  UC668286  Clarkia rhomboidea Joseph P. Tracy 1937-7-24 15527 Humboldt 2 mi se Devil's Hole; Trinity Summit 1524 Comment
  JEPS127652  Claytonia Jurriaan M. de Vos 2014-7-1 300 Humboldt Along Bald Hills Road, near Dolason trail head parking. Comment
  HSC17755  Claytonia exigua subsp. exigua D. E. Anderson 1963-5-19 2467 Humboldt About 1 mi. S of Kneeland school Comment
  HSC44425  Claytonia lanceolata Brad Klipfel 1975-5-30 648 Humboldt Horse Mtn. Comment
Read comments
Sep 23 2019
  HSC17678  Claytonia perfoliata subsp. mexicana J. L. Baker 1965-4-13 47 Humboldt 4 mi. N of Arcata on N Bank Rd. Comment
  UC203566  Claytonia rubra subsp. depressa Joseph P. Tracy 1918-4-7 4861 Humboldt mouth of Strawberry Creek Northern Coast Ranges, Dows Prairie (Dows Prairie) 6 Comment
  CAS-BOT-BC443728  Claytonia rubra subsp. rubra Joseph P. Tracy 1949-6-6 18306 Humboldt Happy Camp Mountain (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  HSC17740  Claytonia rubra subsp. rubra H. E. Parks, J. P. Tracy 1930-5-25 876 Humboldt Laribee Valley 762 Comment
  HSC32145  Claytonia rubra subsp. rubra D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5610 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  RSA249337  Claytonia saxosa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5623 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  HSC55187  Claytonia sibirica G. L. Clifton, Griswold 1979-8-2 12246 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1052461  Claytonia sibirica H. E. Parks Apr 1933 1421 Humboldt Spruce Cove; Trinidad Comment
  UC1215540  Claytonia sibirica D. E. Anderson 1962-3-8 1930 Humboldt e of Humboldt State University Comment
  HSC59143  Claytonia sibirica Terry Roth 1979-5-29 97 Humboldt On the trail from HSU gym to Fern Lake Comment
  SEINET11933917  Claytonia sibirica F. H. Utech 1986-1 86 -417 Humboldt Cape Mendocino, along Pacific Ocean 5 Comment
  HSC62682  Claytonia washingtoniana Michelle Stevens 1979-4-21 53 Humboldt Ponds across from Clam Beach 0 Comment
  HSC99242  Claytonia washingtoniana C. E. Fellows 1971-6-7 456 Humboldt 1 mi. E of Freshwater, near creek S of Freshwater Park Comment
  HSC18086  Clematis lasiantha Doris K. Kildale 1925-6-27 771 Humboldt Mouth of Yager Creek Comment
  CHSC63433  Clintonia uniflora Vernon H. Oswald 1994-6-29 6364 Humboldt Friday Ridge Rd. (Forest Rd. 6N08) 3.5 mi NE of Tiltow Hill Rd., 4.6 mi S of Brush Mt. Lookout Rd., S of Hwy. 299 and Willow Creek. 1237 Comment
  UC30059  Clintonia uniflora Joseph Burtt Davy 1899-6-19 5656 Humboldt Hoopa Mountain Comment
  UC198607  Collinsia grandiflora Joseph P. Tracy 1913-1 4777 Humboldt at Dinsmore's (in Van Duzen Valley); North Coast Ranges 762 Comment
  HSC39196  Collinsia greenei D. E. Anderson, J. P. Smith 1971-7-6 - 1329 Humboldt 1.0 mi. W of Pine Ridge Summit, 6 mi. E of junction with Redwood Valley Rd. Comment
  HSC89590  Collinsia heterophylla M. Roantree 1985-5-24 58 Humboldt S of Trinidad Head summit near cross Comment
  HSC65475  Collinsia linearis Gail Newton 1980-6-24 580 Humboldt Near Ladder Rock 1570 Comment
  HSC96243  Collinsia linearis Laurel Goldsmith, Wanda Naylor 2005-6-8 4 Humboldt 1.7 mi. S of Hwy. 299 on Titlow Hill Rd. 980 Comment
  JEPS6199  Collinsia linearis Joseph P. Tracy 1932-7-12 10439 Humboldt Corral Prairie, open places Corral Prairie; Trinity Summit 1584 Comment
  HSC40672  Collinsia parviflora Thomas W. Nelson, Jane P. Nelson 1976-7-1 2929 Humboldt Along beanch to W of Mt. Lassic (Signal Peak) 1677 Comment
  HSC97484  Collinsia parviflora Cara Witte 2007-5-21 57 Humboldt Board Camp Mountain. 1/2 mile south of intersection with 4N38 and National Forest 1. 1427 Comment
  JEPS6173  Collinsia rattanii Joseph P. Tracy 1935-6-23 13994 Humboldt French Camp Ridge 1066 Comment
  HSC56166  Collomia grandiflora G. L. Clifton, Griswold 1979-8-1 12053 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC63485  Collomia grandiflora M. A. Baker 1977-6-20 388 Humboldt Weitchpec Comment
  HSC60033  Collomia heterophylla M. A. Baker 1978-5-6 477 Humboldt Bald Hills Rd., between Klamath River and French Camp Rd. Comment
  UC1197837  Collomia heterophylla Joseph P. Tracy 1947-7-5 17791 Humboldt ridge top one mi w Mud Springs; Trinity Summit 1158 Comment
  JEPS71046  Collomia heterophylla Lincoln Constance 1934-5-24 628 Humboldt forest bordering e side lower Look Prairie; Bull Creek Area 45 Comment
  RSA21450  Collomia heterophylla C. B. Wolf 1937-8-13 9214 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  HSC102167  Collomia tracyi M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1079 Humboldt Patterson Meadows 1555 Comment
  RSA46800  Comandra umbellata subsp. californica Doris K. Kildale 1926-5-2 2024 Humboldt Willow Creek. Comment
  HSC36297  Comarum palustre Dana A. Page 1973-11-24 Humboldt Crannell Rd. 0.5 mi. E of Hwy. 101, McKinleyville Comment
  HSC6352  Convolvulus arvensis Lincoln Constance 1934-5-27 692 Humboldt S Fork of Eel River, S end of Dyerville Bridge 46 Comment
  HSC67014  Conyza canadensis J. P. Smith 1971-10-9 4988 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  CAS-BOT-BC181556  Coptis laciniata Charlotte M. Hoak 1931-7-12 s.n. Humboldt Noyo, Northspur, 2nd bench back, southern limit Prairie Camp Comment
  HSC99806  Corallorhiza maculata T. Jimerson, J. Pageau 1979-6-13 546 Humboldt Near Onion Lake, close to the town of Orleans. 549 Comment
  JEPS64347  Corallorhiza maculata W. L. Jepson 1902-6-28 1947 Humboldt Hupa Rd Green Point Ranch (ridge) 914 Comment
  UC1196452  Corallorhiza maculata Joseph P. Tracy 1935-7-25 14252 Humboldt Brett Hole Trinity Summit (lower end) 1584 Comment
  HSC34283  Corallorhiza mertensiana Ken Irwin 1975-8-16 Humboldt Grogans Hole Area Comment
  UC666980  Corallorhiza mertensiana Joseph P. Tracy 1930-7-17 9017 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC63188  Corallorhiza mertensiana M. A. Baker 1979-6-8 805 Humboldt 1.5 km. N of Gan's Prairie along Bald Hills Road Comment
  UC14974  Corallorhiza mertensiana Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5625 1/2 Humboldt Bald Mt. Northern Coast Ranges Comment
  HSC16585  Corallorhiza striata D. E. Anderson 1965-5-15 3684 Humboldt About 7 mi. N of Hoopa on Bloody Camp Prairie Rd. Comment
  HSC38447  Cordylanthus maritimus subsp. palustris J. P. Smith 1976-7-3 8936 Humboldt Manila, Samoa Peninsula Comment
  HSC90639  Cordylanthus maritimus subsp. palustris Gail Newton 1983-8-21 3855 Humboldt Elk River Wildlife Area, Eureka. Comment
  JEPS6805  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1939-8-16 16418 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC101148  Corethrogyne filaginifolia Doris K. Kildale 1925-7-26 1066 Humboldt Mad River near Blue Lake, West-End Crossing Comment
  HSC5415  Corethrogyne filaginifolia D. E. Anderson 1963-5-25 2494 Humboldt 4 mi. W of Petrolia Comment
  OBI16659  Corethrogyne filaginifolia Joseph P. Tracy 1950-6-18 18764 Humboldt Near Petrolia. Hills between town and Ocean. 1 mi W of town Comment
  UC725642  Corethrogyne filaginifolia A. A. Heller 1924-7-23 13874 Humboldt Little River Comment
Read comments
Sep 29 2006
  HSC41339  Cornus nuttallii Brad Klipfel 1974-9-7 561 Humboldt Horse Mtn., E fork of Willow Creek. Comment
  HSC6408  Cornus nuttallii John A. Dubois 1962-5-12 8 Humboldt 20 mi. E of Arcata. Comment
  UC205636  Cornus nuttallii Joseph P. Tracy 1919-9-14 5213 Humboldt near its mouth Willow Creek - Northern Coast Ranges, Willow Creek (a tributary of Trinity) Comment
  CAS-BOT-BC212180  Cornus sericea Joseph P. Tracy 1927-11-6 8392 Humboldt Along yager Creek, Carlotta 60 Comment
  UC502981  Cornus sericea subsp. sericea Joseph P. Tracy 1929-8-18 8654 Humboldt opposite Buck Mt. (on Van Duzen R., Dinsmore's Ranch); Northern Coast Ranges, Van Duzen R., Dinsmore's Ranch 670 Comment
  CAS-BOT-BC210538  Cornus sessilis Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UC1222290  Corylus californica Joseph P. Tracy 1950-7-31 19226 Humboldt about 1 mi N of Friday's Camp (where road crosses side of Friday Ridge) Comment
  HSC37416  Corylus cornuta subsp. californica Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 509 Humboldt Along Lost Man Creek. 38 Comment
  RSA33407  Corylus cornuta var. californica Doris K. Kildale 1927-3-25 3004 Humboldt Humboldt Hill Comment
  SEINET3817858  Cotula coronopifolia H. E. Parks 24211 Humboldt Little River State Park Comment
  UCR48592  Cotula coronopifolia R. D. Goeden, Don W. Ricker 1987-9-2 870902- 16 Humboldt North Coast, Loleta, at bay on Cannibal Road 3 Comment
  HSC5431  Cotula coronopifolia H. E. Parks Sep 1941 24211 Humboldt Little River Beach Park, along highway Comment
  HSC59049  Cotula coronopifolia Thomas Wood 1979-4-20 116 Humboldt At Clam Beach, off Hwy. 101 ca. 7 mi. N of Arcata 3 Comment
  UC1198825  Crassula connata var. subsimplex Joseph P. Tracy 1919-4-27 5128 Humboldt sand dunes of Ocean Beach at Humboldt Bay; Northern Coast Region, , Ocean Beach Comment
  HSC5446  Crepis capillaris L. K. Weld 1967-7-16 2 Humboldt Myrtle Ave. 1 mi. S of Freshwater Corners Comment
  HSC73641  Crepis pleurocarpa M. A. Baker 1980-7-23 3136 Humboldt Near Orleans Mtn. 1859 Comment
  UC485361  Crepis pleurocarpa P. E. Goddard 1906-6 660 Humboldt Lasseck Pk. Comment
  UCD119870  Cryptantha leiocarpa Linda M. Barker 1976-4-30 1419 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  HSC57212  Cryptantha simulans Griswold, Butler 1979-7-12 7247 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  SBBG28775  Cryptantha torreyana L. Constance, R. C. Rollins 1942-5-11 Humboldt Hoopa Valley 5 mi S of Hoopa 121 Comment
  UC1222265  Cryptantha torreyana Joseph P. Tracy 1949-8-11 18470 Humboldt 2-6 mi s Grouse Mt. (e of headwaters of Redwood Creek, power plant southward); Kinsey Ridge 1280 Comment
  HSC63877  Cryptogramma acrostichoides M. A. Baker 1979-6-27 926 Humboldt E of Oregon Creek Comment
  HSC74218  Cryptogramma acrostichoides M. A. Baker 1980-7-23 3147 Humboldt Near Orleans Mtn. 1859 Comment
  UC906745  Cuscuta californica Joseph P. Tracy 1941-8-28 17047 Humboldt near Blake lookout; Northern Coast Ranges, South Fork Mountain 1706 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
  BLMAR215  Cynoglossum grande Jennifer Anthony-Wheeler 1996-7-9 215 Humboldt Pilot ridge., growing in shaged area in woodland, primarily beneath Oregon Oak 1280 Comment
  SEINET200580  Cynoglossum occidentale J. P. Tracy 1930-7-10 8871 Humboldt Brannan Mtn 1219 Comment
  HSC37238  Cynosurus echinatus Lon Hall 1975-6-19 406 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  HSC47794  Cynosurus echinatus Michael A. Watkins 1978-6-10 14 Humboldt Arcata, E side of 7th St. overpass to Hwy. 101 Comment
  HSC89500  Cynosurus echinatus M. Roantree 1985-5-30 68 Humboldt West side of Trinidad Head Comment
  UC535738  Cyperus eragrostis Eleanor Armstrong 1157 Humboldt Richardson Grove Comment
  UC1103636  Cyperus squarrosus Joseph P. Tracy 1921-10-9 5969 Humboldt Mad R. at Blue Lake; Northern Coast Ranges, Mad R. 30 Comment
  UC14955  Cypripedium montanum Harley P. Chandler June, 1901 1399 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC98541  Cystopteris fragilis Cara Witte 2008-6-9 704 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1418 Comment
  RSA183569  Cytisus monspessulanus R. I. Bonn 1965-3-19 8 Humboldt 1/2 mi. south of G.P. mill on Samoa Rd. Comment
  CAS-BOT-BC189763  Dactylis glomerata Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  CAS-BOT-BC189764  Dactylis glomerata F. W. Peirson 1933-7-12 3655 Humboldt 5 miles north of Orick. Comment
  CAS-BOT-BC189740  Danthonia californica Joseph P. Tracy 1928-6-24 8463 Humboldt Northern Coast Ranges. Valley of South Yager Creek. 762 Comment
  HSC1967  Danthonia californica William J. Ferlatte, B. D. Rogers 1966-6-15 2108 Humboldt Larabee Valley 762 Comment
  UC526850  Danthonia californica Joseph P. Tracy 1934-7-12 13377 Humboldt Big Lagoon 3 Comment
  UC526856  Danthonia californica Joseph P. Tracy 1931-5-31 9549 Humboldt Kneeland Prairie Northern Coast Ranges 792 Comment
  UCD60969  Danthonia californica var. americana J. T. Mallory 1955-6-7 112 Humboldt North end of Luke Prairie. 350 Comment
  UC1152019  Danthonia unispicata Joseph P. Tracy 1951-7-26 19593 Humboldt Redwwod Creek Board Camp Mountain (extreme head, n side of mt.) Comment
  UCD61361  Danthonia unispicata R. Tofsrud 1948-9-3 Humboldt Road junction near summit of Horse Mt. 1463 Comment
  CAS-BOT-BC420362  Darmera peltata Joseph P. Tracy 1933-6-7 12517 Humboldt Blue Slide, on Van Duzen River 91 Comment
  UC1198471  Datisca glomerata Joseph P. Tracy 1912-8-3 3972 Humboldt in Valley of Van Duzen River (opposite Buck Mountain, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  HSC12359  Daucus carota C. Kline 1970-11-28 84 Humboldt Hwy 101, 1 mi S of Arcata Comment
  HSC21479  Daucus carota H. D. Sumner 1959-7-20 Humboldt West End Rd. along the Mad River 3 Comment
  HSC33767  Daucus pusillus Ron Rahlston 1975-5-24 77 Humboldt Samoa Dunes off Samoa Blvd., across from boat landing Comment
  HSC34963  Delphinium decorum subsp. tracyi Thomas W. Nelson 1975-5-24 1861 Humboldt McKeown Ranch, N of Dinsmore. Comment
  RSA259575  Delphinium decorum subsp. tracyi Thomas W. Nelson 1974-5-7 1236 Humboldt Kneeland Road, 1/2 mile N of the Kneeland School Comment
  UC1005604  Delphinium decorum subsp. tracyi Frank W. Gould 1939-5-29 837 Humboldt in wet meadow near ski hut; Horse Mountain 1005 Comment
  UC183703  Delphinium decorum subsp. tracyi Joseph P. Tracy 1913-6-17 4156 Humboldt streamlet near summit Northern Coast Ranges, Buck Mountain 1219 Comment
  CAS-BOT-BC9925  Delphinium nudicaule Doris K. Kildale 1926-4-2 1712 Humboldt Briceland Bridge, 0.5 mi. W of Garberville Comment
  HSC25010  Delphinium nudicaule G. N. Bos 1965-5-15 270 Humboldt 2 mi. W of Berry Summit along U.S. 299. 701 Comment
  HSC27071  Delphinium nudicaule Clifton Raymond Chesbrough 1971-4-11 8 Humboldt 1.0 mi. E of Salyer on Hwy. 299, along Trinity River Comment
  UC1196332  Delphinium nudicaule Joseph P. Tracy 1921-6-19 5830 Humboldt Berry Mtn. Northern Coast Ranges 914 Comment
  JEPS8447  Delphinium nuttallianum Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3411 Humboldt 0.5 mi w Snow Camp (ridge between Mad River and Redwood Creek); Bald Mountain ridge 1432 Comment
  RSA400116  Delphinium nuttallianum M. A. Baker 1979-6-27 933 Humboldt At head of Oregon Creek. Comment
  HSC46068  Delphinium trolliifolium William J. Ferlatte, B. D. Rogers 1966-6-15 2101 Humboldt Plympton Ranch 915 Comment
  UC1080304  Delphinium trolliifolium E. K. Balls 1957-5-25 22603 Humboldt State Hwy 36 4.5 mi sw Dinsmores 822 Comment
  CDA14362  Deschampsia cespitosa P. Haggard 1996-7-8 s.n. Humboldt North Coast; North Coast Railroad right-of-way, Eureka. 0 Comment
  OBI36621  Deschampsia cespitosa David J. Keil 1983-7-2 17301 Humboldt Humboldt Bay salt marsh at Arcata Corporation Yard Comment
  CAS-BOT-BC194291  Deschampsia cespitosa subsp. cespitosa Doris K. Kildale 1928-7-29 5922 Humboldt Bear River at Capetown Comment
  UC552716  Deschampsia danthonioides Joseph P. Tracy 1935-6-23 13969 Humboldt French Camp Ridge 1066 Comment
  UCD61390  Deschampsia danthonioides A. H. Murphy 1951-5-21 Humboldt Tooby and Prior Ranch, Blocksburg. Experimental grazing pasture, 2 miles S of Blocksburg. Comment
  HSC65115  Deschampsia elongata J. P. Smith 1973-5-26 6856 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC74436  Deschampsia elongata Gail Newton 1980-8-10 2067 Humboldt Near Blake Mtn. 1707 Comment
  POM207197  Deschampsia elongata Joseph P. Tracy 1901-6-2 1118 Humboldt Immediate vicinity of Eureka 0 Comment
  UC1103215  Deschampsia elongata J. P. Tracy 1899-7-22 331 Humboldt immediate vicinity of Eureka 0 Comment
  UC184920  Deschampsia elongata Joseph P. Tracy 1912-6-9 3684 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC249799  Deschampsia elongata Joseph P. Tracy 1923-6-20 6308 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley 304 Comment
  UC526670  Deschampsia elongata Joseph P. Tracy 1933-7-25 12872 Humboldt Grouse Mt. North Coast Ranges, Grouse Mt. 1524 Comment
  HSC58678  Descurainia incana G. L. Clifton, Terry Griswold 1979-8-2 12201 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  CHSC7029  Dicentra formosa K. R. Stern 1964-6-17 2115 Humboldt Ca. 9 mi. w of Blue Lake, s side of US Hwy. #299. Comment
  UC146101  Dicentra formosa J. P. Tracy 1903-8-4 1928 Humboldt immediate vicinity Eureka 0 Comment
  UC855123  Dicentra formosa Elizabeth Parsons Hawver Jun 1915 Humboldt Carlotta Comment
  UC1196303  Dicentra formosa Joseph P. Tracy 16208 Humboldt vicinity Carlotta 30 Comment
  CAS-BOT-BC402402  Dicentra formosa subsp. formosa Mrytle Paulson 1918-4-18 s.n. Humboldt Eureka Comment
  CAS-BOT-BC254483  Dichanthelium acuminatum subsp. acuminatum Henry M. Pollard 1948-9-18 s.n. Humboldt Banks of Klamath River, Orleans Comment
  HSC39057  Dichelostemma capitatum subsp. capitatum Thomas W. Nelson, Jane P. Nelson 1976-5-31 2643 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  HSC86307  Dichelostemma capitatum subsp. capitatum K. Berg, B. Bonning 1983-5-21 493 Humboldt 0.5 mi. up Titlow Hill Rd. from Berry Summit 854 Comment
  SBBG892  Dichelostemma ida-maia K. K. Muller 1954-6-21 628 Humboldt Mad River Camp 2 on Mad River Comment
  UC1198181  Dichelostemma ida-maia Joseph P. Tracy 1947-5-10 17684 Humboldt Miranda South Fork of Eel River 121 Comment
  UC175926  Dichelostemma ida-maia Joseph P. Tracy 1913-6-20 4227 Humboldt nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  UCR275099  Digitalis purpurea Charity A. Hartshorn 2016-4-24 18 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  POM273546  Digitalis purpurea Lyman D. Benson 1928-7-10 523 Humboldt Weott Ranger Station. Seaward N Coast mtn range, S. Fork Eel River drainage. 61 Comment
  HSC49807  Dipsacus fullonum R. York 1979-5-23 314 Humboldt Along shore of Humboldt Bay Comment
  SEINET4170350  Disporum hookeri Bassett Maguire, Ruth Maguire , C. B. Maguire 1934-6-8 15087 Humboldt Bolling Grove State Park Comment
  UC1197658  Disporum hookeri Joseph P. Tracy 1937-7-2 15409 Humboldt Trinity Summit, head of Little Hors-Linto Creek Little Hors-Linto Creek; Trinity Summit, Little Hors-Linto Creek 1371 Comment
  JEPS61826  Disporum hookeri W. L. Jepson 1932-8-8 16489 Humboldt Chaney ranch, Canoe Creek Comment
  CHSC94953  Disporum smithii K. Lang; J. Lang 2005-3-16 25 Humboldt Trinidad, N. California coast. 51 Comment
  RSA520557  Disporum smithii Michael A. Hanson 1990-5-21 71 Humboldt Near Little Creek Trail in Redwood National Park; east side of Highway 101 approximately 7 miles (11 km) south of Klamath Comment
  CHSC56629  Distichlis spicata L. P. Janeway 1983-9-24 703 Humboldt 10-30 ft from water line of Big Lagoon, at south corner of county campground. 3 Comment
  UCD64176  Distichlis spicata A. H. Murphy 1950-8-1 Humboldt Ocean House area, Cape Mendocino. Comment
  UC1198620  Dodecatheon hendersonii Joseph P. Tracy 1922-5-14 6046 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC85760  Dodecatheon hendersonii R. Earing, C. Cavanaugh, C. Collins 1987-3-6 3 Humboldt Gray's Falls Campground, approx. 10 mi. E of Willow Creek on Hwy. 299, along the Trinity River. 244 Comment
  JEPS8451  Dodecatheon jeffreyi Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3418 Humboldt edge of meadow at Snow Camp btw Mad River and Redwood Creek (Bald Mountain Ridge) (Ridge between Mad River and Redwood Creek (Bald Mountain Ridge)) 1432 Comment
  UC602557  Downingia cuspidata Joseph P. Tracy 1935-5-25 13843 Humboldt Fort Seward 106 Comment
  UC1199494  Downingia elegans Joseph P. Tracy 1933-4-30 13053 Humboldt Grouse Mountain Northern Coast Ranges 1524 Comment
  HSC49811  Drosera rotundifolia R. York 1979-4-13 227 Humboldt Big Lagoon Bog. Comment
  RSA0011677  Drosera rotundifolia C. B. Wolf 1927-8-22 778 Humboldt Big Lagoon. Comment
  UCSB26681  Drosera rotundifolia Havlik, Neil 1968-8-21 Humboldt South end of Big Lagoon; north of Trinidad Comment
  HSC35347  Drymocallis glabrata A. M. Montalvo, J. D. Ackerman 1975-6-22 480 Humboldt 6.4 mi. W of Dinsmore on Hwy. 36 Comment
  HSC57850  Drymocallis glandulosa var. reflexa G. L. Clifton 1979-7-31 11357 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC12540  Drymocallis glandulosa var. wrangelliana C. C. Marshall 1888-1 Humboldt Comment
  UC1198688  Drymocallis lactea var. austiniae Joseph P. Tracy 1933-7-25 12841 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  JEPS35195  Dryopteris arguta Lincoln Constance 1934-6-4 825 Humboldt S. Fork Eel River Comment
  POM281633  Dryopteris arguta Lyman Benson 1929-7-16 1547 Humboldt Weott Ranger Station. Comment
  UC62809  Dryopteris expansa Marshall A. Howe 1896-5-30 Humboldt Eureka Comment
  CAS-BOT-BC428298  Dudleya farinosa W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  UC203874  Dudleya farinosa Joseph P. Tracy 1918-7-1 4075 Humboldt 3 mi s point of the cape (sw slopes fronting the ocean); Cape Mendocino Comment
  UC34075  Echinochloa crus-galli J. P. Tracy 1900-11-1 973 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC113642  Eleocharis acicularis Doris K. Kildale 1931-5-16 s.n. Humboldt Snow Camp Comment
  CAS-BOT-BC112843  Eleocharis macrostachya Joseph Prince Tracy 1934-7-30 13506 Humboldt Dry Lagoon along coast in front of South End of Stone Lagoon. 3 Comment
  CAS-BOT-BC112844  Eleocharis macrostachya Carl B. Wolf 1927-8-22 793 Humboldt Big Lagoon Comment
  HSC90658  Eleocharis macrostachya Gail Newton 1982-6-10 3640 Humboldt Elk River Wildlife Area, Eureka Comment
  JEPS19324  Eleocharis parishii Joseph P. Tracy 1926-8-12 7767 Humboldt Trinity River Valley, near the South Fork Northern Coast Ranges 182 Comment
  HSC58814  Eleocharis quinqueflora G. L. Clifton, Griswold 1979-8-1 12054 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  SEINET201037  Elymus X hansenii Joseph P. Tracy 1930-7-16 9054 Humboldt South Fork Moutain, open glades along summit near Blake lookout. Comment
  CAS-BOT-BC227343  Elymus elymoides Joseph P. Tracy 1935-7-28 14317 Humboldt Trinity Summit. Head of Devil's Hole 1828 Comment
  CAS-BOT-BC227344  Elymus elymoides Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC58627  Elymus elymoides var. elymoides Overton, Butler 1979-7-31 11458 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC76540  Elymus glaucus Denis Kearns 1981-7-24 444 Humboldt Near Whiteys Peak. 1768 Comment
  SBBG53088  Elymus glaucus R. N. Philbrick, J. R. Haller 1976-6-25 8 Humboldt Capetown-Ferndale Rd, NW of Cape Mendocino, ca. 4 mi NW of Bear River at Capetown 457 Comment
  UCR32176  Elymus glaucus David J. Keil 1983-7-1 17280 Humboldt North Coast Range, Bull Creek Flats Road, 2.5 mi. NE of Honeydew Comment
  SEINET11682991  Elymus glaucus K. S. Erdman 1970-1 4785 Humboldt Doleson Hill Prairie, Bald Hills Road SE of Orick Comment
  CAS-BOT-BC203476  Elymus glaucus subsp. glaucus Joseph P. Tracy 1933-8-6 12950 Humboldt French Camp Ridge 1066 Comment
  HSC89898  Elymus glaucus subsp. glaucus Leonel Arguello 1989-7-14 Humboldt Lanphere-Christensen Dunes Preserve 3 mi. W of Arcata. Comment
  UC526791  Elymus glaucus subsp. virescens Joseph P. Tracy 1927-6-26 8215 Humboldt Stone Lagoon Northern Coast Region (bluffs facing ocean) 6 Comment
  HSC63822  Elymus intermedius Dennis McKiver 1981-1-12 Humboldt 300 yds. SW of the Mad River Bridge on Hatchery Rd. in Blue Lake. Comment
  HSC9733  Elymus mollis subsp. mollis L. M. Malloy 1965-5-16 15 Humboldt Samoa, sand dunes 1/4 mile NW of the corner of Thunder Rd. and the Hard Way. Comment
  BLMAR20  Elymus multisetus Brad Barr June, 1982 20 Humboldt King range, West facing slope of spanish ridge Comment
  SACT001159  Elymus vancouverensis Malcolm Nobs, S. Smith 1949-8-3 Humboldt Salt marshes bordering Humboldt Bay, 2 miles north of Eureka. Comment
  UC1103292  Elytrigia repens Joseph P. Tracy 1937-7-17 15434 Humboldt Eureka 60 Comment
  UC1103294  Elytrigia repens Joseph P. Tracy 1937-8-13 15663 Humboldt Loleta 9 Comment
  RSA647553  Epilobium angustifolium subsp. circumvagum G. F. Orr 1953-8-15 s.n. Humboldt Patrick Point State Park, Trinidad Comment
  UC562421  Epilobium brachycarpum Joseph P. Tracy 1933-8-6 12942 Humboldt French Camp Ridge 1066 Comment
  HSC99131  Epilobium brachycarpum Cara Witte 2007-7-24 571 Humboldt Titlow Hill. 1 mile north of turn off to Cold Spring. 1484 Comment
  JEPS39238  Epilobium brachycarpum W. L. Jepson 1932-8-9 16358 Humboldt Bull Creek Redwood Creek 106 Comment
  UC505123  Epilobium campestre Joseph P. Tracy 1930-6-15 8743 Humboldt near Bosworth; Larrabee Creek 457 Comment
  HSC97988  Epilobium canum subsp. latifolium Cara Witte 2007-7-8 438 Humboldt Board Camp Mountain. Trail 4E28. 1498 Comment
  CDA30723  Epilobium ciliatum M. K. Beyers, I. Shepardson 2009-9-13 253 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
  HSC48852  Epilobium ciliatum subsp. ciliatum Brad Klipfel 1973-7-15 211 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS39328  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1918-7-6 5046 Humboldt near Humboldt-Mendocino County line (i.e. near Richardson Grove); Northern Coast Ranges, South Fork of Eel River 152 Comment
  UC549762  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1932-7-16 10633 Humboldt swamp near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  UC1222858  Epilobium densiflorum Joseph P. Tracy 1950-6-18 18843 Humboldt Davis Creek Cape Mendocino (ditch, s of point of Cape) 3 Comment
  UC1222850  Epilobium hallianum Joseph P. Tracy 1950-7-6 19015 Humboldt 3 mi s Burr Valley (w side of mt.); Buck Mountain 1158 Comment
  SEINET10632319  Epilobium oreganum Joseph P. Tracy 1932-7-16 Tracy 1061 Humboldt Trinity Summit, Corral Prairie 1500 Comment
  UC1198495  Epilobium torreyi Joseph P. Tracy 8744 Humboldt near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  HSC97437  Equisetum arvense Ivy Watson 2008-10-5 38 Humboldt Blue Lake; ~ 500 ft. upstream of the Hatchery Rd. bridge, north bank. 22 Comment
  UC62558  Equisetum hyemale subsp. affine P. E. Goddard July 1901 88 Humboldt Hupa Comment
  HSC100123  Equisetum laevigatum Thomas W. Nelson, Jane Nelson 1977-5-30 3406 Humboldt Back bay of Mad River at Anderson's Ford 640 Comment
  HSC881  Equisetum telmateia subsp. braunii C. B. Wolf 1927-8-28 1181 Humboldt On rd. between Eureka and Arcata Comment
  RSA20844  Erechtites glomeratus C. B. Wolf 1937-6-18 8884 Humboldt Table Bluff between Humboldt Bay and Eel River 30 Comment
  HSC91918  Erechtites minimus E. Mackey 1986-7-21 Humboldt Patricks Point State Park, near Wedding Rock Comment
  HSC5497  Erechtites minimus Paul Shields Aug 1955 Humboldt 5 mi. W of Weott Comment
  CAS-BOT-BC174186  Eremogone congesta var. congesta Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1828 Comment
  CAS-BOT-BC58928  Erica T. C. Fuller 1961-3-22 5938 Humboldt N. slope Humboldt Hill, Eureka Comment
  CAS-BOT-BC296118  Erigeron foliosus var. confinis Doris K. Kildale 1929-5-26 9141 a Humboldt Klamath River at Orleans 152 Comment
  UC468817  Erigeron foliosus var. confinis Joseph Burtt Davy and Walter C. Blasdale Jun 20 1899-Jan 1 1900 5713 Humboldt Hoopa Valley North-Western California, Mendocino Comment
  CAS-BOT-BC308848  Erigeron glaucus Doris K. Kildale 1926-5-15 1975 Humboldt Fleener Creek Comment
  SD40123  Erigeron glaucus Edith A. Purer 1932-7-27 4143 Humboldt Comment
  HSC5562  Erigeron inornatus var. inornatus M. H Manning 1901-7-25 311 Humboldt Bald Hill near Hoopa Comment
  CAS-BOT-BC214581  Erigeron philadelphicus Volney Rattan No date on label s.n. Humboldt Mad River Comment
  SBBG63320  Erigeron philadelphicus J. R. and R. C. Robbins 1932-7-24 Humboldt S of Scotia Comment
  UCD20386  Erigeron philadelphicus K. Esau 1934-5-6 s.n. Humboldt Fort Seward. Comment
  UC153941  Erigeron philadelphicus var. philadelphicus J. P. Tracy 1910-10-1 3162 Humboldt immediate vicinity Eureka 0 Comment
  UC164845  Erigeron philadelphicus var. philadelphicus Joseph P. Tracy 1911-7-4 3304 Humboldt along, near its mouth Willow Creek (tributary of Trinity River); Northern Coast Ranges, Trinity River, Willow Creek 182 Comment
  UC31538  Erigeron supplex H. N. Bolander 1863-1 4754 Humboldt Comment
Read comments
Feb 20 2007
  CAS-BOT-BC224256  Eriodictyon californicum Harley P. Chandler 1901-6-1 1352 Humboldt Hupa Indian Reservation [Hupa Valley Indian Reservation] 152 Comment
  HSC73670  Eriogonum compositum M. A. Baker 1980-7-15 2953 Humboldt Near Whiting Ridge. 1341 Comment
  POM188142  Eriogonum latifolium Marcus E. Jones 1931-7-12 28806 Humboldt Alton. Comment
  UC1198149  Eriogonum latifolium Joseph P. Tracy 1933-8-25 12998 Humboldt Centerville 6 Comment
  UC1222342  Eriogonum latifolium Joseph P. Tracy June 1950 18762 Humboldt near Petrolia (roadside, e slope of Domingo Hill, between town and Ocean); Domingo Hill Comment
  CAS-BOT-BC259535  Eriogonum luteolum var. luteolum Doris K. Kildale 1925-7-5 1019 Humboldt Willow Creek Flat, Trinity River Valley 152 Comment
  UC1198147  Eriogonum nudum var. nudum Joseph P. Tracy 1948-8-8 18094 Humboldt near school house; Iaqua 609 Comment
  RSA33411  Eriogonum nudum var. oblongifolium Doris K. Kildale 1927-7-1 3621 Humboldt Alton Hill Comment
  CAS-BOT-BC269862  Eriogonum nudum var. pubiflorum Doris K. Kildale 1926-6-9 2144 Humboldt Horse Mountain 1219 Comment
  HSC40826  Eriogonum strictum var. greenei Thomas W. Nelson, James Nelson 1976-7-26 3041 Humboldt Middle pk. of Mt. Lassic group 1738 Comment
  HSC74698  Eriogonum umbellatum Gail Newton 1981-7-24 2291 Humboldt Near Chaparral Mtn. 1512 Comment
  SEINET4856204  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8345 Humboldt Along U.S. Forest Service Road 1 at south end of Whiting Ridge, about 0.5 air miles west-northwest of High Salt Ground and 9.3 miles west of Hyampom. 1296 Comment
  HSC63845  Eriogonum umbellatum var. umbellatum M. A. Baker 1979-6-26 913 Humboldt S facing ridge Comment
  UC198878  Eriophorum crinigerum H. N. Bolander, Kellogg, M. D. and Co. Humboldt Red Mt. Comment
  HSC28146  Eriophyllum lanatum Chris Gist 1971-6-19 36 Humboldt 3 mi. in on Titlow Hill Rd. from California State Hwy. 299, Horse Mtn. Comment
  HSC44133  Eriophyllum lanatum var. achilleoides Thomas W. Nelson, Jane P. Nelson 1977-7-1 3579 Humboldt W side of road N from Alder Springs, head of N Fork of Conley Creek 1463 Comment
  SEINET11850721  Eriophyllum lanatum var. grandiflorum J. P. Tracy 1944-1 17480 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC301923  Eriophyllum staechadifolium W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  CAS-BOT-BC301924  Eriophyllum staechadifolium L. R. Abrams 1916-7-18 6080 Humboldt Arcata to Trinidad Comment
  CDA17338  Eriophyllum staechadifolium B. Freeman 2004-8-2 PDR 1403792 Humboldt North Coast; Petrolia Road, Lost Coast, Petrolia. 0 Comment
  UC176463  Eriophyllum staechadifolium Joseph P. Tracy 1913-7-13 4361 Humboldt Patrick's Point Patrick's Point (bluffs facing ocean) 30 Comment
  UC17090  Erodium cicutarium Joseph Burtt Davy 1899-6-8 5342 Humboldt Bell Springs Comment
  HSC44569  Erysimum capitatum var. capitatum Brad Klipfel 1973-7-15 187 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC100889  Erythronium Carl C. Marshall Apr 1887 357 Humboldt Near Lupton's Redwood. Comment
  JEPS505  Erythronium californicum Joseph P. Tracy 1938-6-13 15896 Humboldt Horse Mountain 1432 Comment
  HSC104341  Erythronium californicum James Regan 2007-5-9 7 Humboldt Kneeland, near Kneeland Airport 854 Comment
  HSC96235  Erythronium californicum April A. Allard, Gregory D. O'Connell 2005-6-10 7 Humboldt 4.5 mi. S of Hwy. 299 on NF1 at junction below radio tower 1421 Comment
  UC1197641  Erythronium californicum Joseph P. Tracy 1908-6-8 2630 Humboldt woods on n slope Ashfield's Butte; Northern Coast Ranges 762 Comment
  SEINET12054368  Erythronium grandiflorum J. P. Tracy 1950-1 18616 Humboldt 2 mi W of Dinsmore's, Buck Mountain, lower foothills of NW slope 762 Comment
  HSC15499  Erythronium oregonum subsp. leucandrum D. E. Anderson 1965-4-24 3548 Humboldt 3 mi. E of Redwood Creek bridge along Hwy. 299, old routing Comment
  HSC15500  Erythronium oregonum subsp. leucandrum D. E. Anderson 1963-3-23 2400 Humboldt 2 mi. N of Beaver School Comment
  CHSC110754  Erythronium revolutum Dean Wm. Taylor 2011-5-4 21120 Humboldt South Coast Ranges. Vicinity of Dinsmore; Forest Road 1N30 (Bick Mountain Road) about 0.5 miles SE from junction with Highway 36. 737 Comment
  UC1197650  Erythronium revolutum Joseph P. Tracy 1927-4-10 7899 Humboldt Berry's North Coast Ranges, Redwood Creek 274 Comment
  UC13823  Erythronium revolutum Harley P. Chandler June, 1901 1279 Humboldt Hupa Indian Reservation North Coast Ranges 1066 Comment
  HSC16769  Eschscholzia californica T. W. Beck 1963-4-27 38 Humboldt Humboldt Meridian, Camp Bauer, Korbel Comment
  UC183669  Eschscholzia californica Joseph P. Tracy 1912-7-26 3853 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  JEPS590  Eschscholzia californica Lincoln Constance 1934-5-23 615 Humboldt Look Prairie South Fork Eel River, Bull Creek region (upper end, sw slope) 365 Comment
  UC184939  Eschscholzia californica Joseph P. Tracy 1913-6-15 4138 Humboldt Dinsmore's Ranch Northern Coast Ranges, Valley of Van Duzen River (opposite Buck Mountain) 762 Comment
  OBI69926  Eucalyptus globulus Jenn Yost, Matt Ritter 2008-4-1 42 Humboldt Sewell R. off 101, Weott Comment
  HSC58379  Eucephalus ledophyllus Terry Griswold 1979-7-25 10759 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1814 Comment
  UC1222991 Image available Eucephalus tomentellus Joseph P. Tracy 1941-8-24 17043 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC1199347  Euchiton gymnocephalus Joseph P. Tracy 1936-5-17 14811 Humboldt 6 mi se Arcata; Fickle Hills 609 Comment
  UC549768  Euchiton gymnocephalus J. P. Tracy 1904-7-31 2134 Humboldt immediate vicinity Eureka 0 Comment
  UC552255  Euchiton gymnocephalus Joseph P. Tracy 1936-3-22 14784 Humboldt 4 mi se Korbel (near Angels Ranch); North Coast Ranges 304 Comment
  CAS-BOT-BC310494  Euchiton sphaericus Joseph P. Tracy 1936-8-23 15162 Humboldt Carlotta 30 Comment
  JEPS20476  Euchiton sphaericus Joseph P. Tracy 1936-8-24 15176 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC204871  Euchiton sphaericus Joseph P. Tracy 1918-10-6 5118 Humboldt 2 mi se Sequoia Park (on Connick Claim road, at Eureka); Northern Coast Ranges, Eureka 0 Comment
  CAS-BOT-BC310493  Euchiton sphaericus Joseph P. Tracy 1936-8-24 15176 Humboldt Fickle Hill. (6 mi. S.E. of Arcata) 609 Comment
  BLMAR290  Euonymus occidentalis var. occidentalis Jennifer Anthony-Wheeler 2001-5-22 290 Humboldt Headwaters Forest Reserve, growing shaded streambank by ' babbits ridge ' 335 Comment
  SEINET10493552  Euphorbia Mary Susan Taylor 1990-8-22 Taylor 6080 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  UC1198984  Euphorbia crenulata Joseph P. Tracy 1926-4-11 7409 Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  HSC98864  Euphorbia crenulata Cara Witte 2008-8-5 992 Humboldt Forest Service Road 4N06. 1/4 mile east of intersection with National Forest 1. 1233 Comment
  UC164833  Euphorbia crenulata Joseph P. Tracy 1909-8-29 3083 Humboldt top of Humboldt Hill Northern Coast Region, Humboldt Bay Region (Humboldt Bay Region) 0 Comment
  POM282192  Euphorbia lathyris Lyman Benson 1928-7-12 474 Humboldt Weott Ranger Station; Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  UC1198982  Euphorbia spathulata Joseph P. Tracy 1947-5-10 17678 Humboldt near Briceland 457 Comment
  UC902141  Euphorbia spathulata Joseph P. Tracy 1948-6-20 18068 Humboldt Willow Creek; Trinity River Valley 152 Comment
  HSC12592  Fallopia japonica C. Kline 1970-11-15 70 Humboldt Downtown Arcata, empty lot 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
  BLMAR13  Festuca idahoensis Brad Barr June, 1982 13 Humboldt King range, HJ ridge Comment
  UC535634  Festuca idahoensis Joseph P. Tracy 1932-7-12 10447 Humboldt Corral Ranch Klamath Mountains, Trinity Summit 1524 Comment
  HSC75355  Festuca occidentalis J. O. Sawyer, M. A. Ericksen 1980-7-18 3644 Humboldt Along FS Rd. 10N02, S of Middle Fork of Mill Creek Comment
  RSA10112  Festuca occidentalis Joseph P. Tracy 1932-7-17 10655 Humboldt Near Corral Prairie, Trinity summit, Klamath mountains. 1524 Comment
  RSA10940  Festuca occidentalis Victor Duran 1933-5-11 3410 Humboldt Van Duzen River, near Bridgeville. Comment
  UC525638  Festuca roemeri Joseph P. Tracy 1933-7-25 12890 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC9989  Festuca rubra R. H. Berg 1963-4-30 57 Humboldt 1 mi. N of Arcata, on Hwy. 101 Comment
  UCD66377  Festuca rubra Gordon Leppig 1998-6-1 871 Humboldt Horse Mountain. Buck Flat, Titlow Hill Rd. @ Ammon Ridge Rd. 1524 Comment
  POM111919  Festuca subuliflora H. P. Chandler 1901-05 1179 Humboldt Humboldt Bay. 30 Comment
  UCD66498  Festuca subuliflora J. I. Mallory 1955-2-22 115 Humboldt Peavine Ridge one mile north of Luke Prairie. 701 Comment
  UC492174  Fragaria Joseph P. Tracy 1932-7-16 10630 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  UC584127  Fragaria chiloensis David D. Keck and J. Clausen 1935-6-16 3390 Humboldt mouth of Little River Comment
  HSC18608  Fragaria vesca A. E. Inman 1962-5-25 Humboldt E bank of Mad River, W of Camp Bauer Comment
  HSC44279  Fragaria vesca D. L. Goforth 1977-4-23 4 Humboldt 2.5 mi.. S of Shelter Cove Rd. S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC18399  Frangula californica Dale Thornburg 1968-11-10 Humboldt Hogback Ridge NE of Ammon Guard Station Comment
  CAS-BOT-BC217693  Fraxinus latifolia M. S. Jussel 1931-5-1 s.n. Humboldt Sylvandale, 8 mi. N of Garberville Comment
  CAS-BOT-BC217694  Fraxinus latifolia Joseph P. Tracy 1928-4-22 8414 Humboldt Willow Creek, Trinity River Valley 152 Comment
  UC1198635  Fraxinus latifolia Joseph P. Tracy 1942-6-2 17106 Humboldt Valley of South Yager Creek 762 Comment
  UC906695  Fraxinus latifolia Joseph P. Tracy 1941-3-26 16814 Humboldt opposite mouth of Willow Creek; Trinity River Valley, Lack Pond 152 Comment
  CAS-BOT-BC136027  Fritillaria affinis Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC34506  Fritillaria affinis J. D. Ackerman 1975-5-3 440 Humboldt 3.5 mi. E of Chezem Rd. and Hwy. 299 intersection, W of Redwood Creek Comment
  CAS-BOT-BC136032  Fritillaria affinis John Thomas Howell 1954-4-25 29154 Humboldt Dune hills, Little River Comment
  RSA90637  Fritillaria affinis Ralph Lewis 1936-4-10 s.n. Humboldt Along Redwood Highway, first bridge south of Cummings Comment
  UC1197627  Fritillaria purdyi Joseph P. Tracy 1938-6-13 15918 Humboldt Grouse Mountain, at Cold Springs Cold Springs; Grouse Mountain, Cold Springs 1432 Comment
  UC1197629  Fritillaria purdyi Joseph P. Tracy 1926-5-15 7488 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  SEINET8773683  Fumaria capreolata R. R. Halse 2013-3-28 8767 Humboldt Eureka, at a Texaco station near 3543 Broadway Street (US Hwy 101) and its intersection with McCullens Avenue. 6 Comment
  JEPS6512  Galium bifolium Joseph P. Tracy 1933-7-16 12778 Humboldt near McKay Camp; South Fork Mt. 1676 Comment
  HSC41599  Galium bolanderi Thomas W. Nelson, Jane P. Nelson 1977-8-6 3705 Humboldt Above Alder Springs 1555 Comment
  HSC97949  Galium bolanderi Cara Witte 2007-6-26 352 Humboldt Horse Mountain Botanical Area. Junction of 6N36 and 6N36A. 1388 Comment
  JEPS6702  Galium bolanderi Chesnut and Drew July 1888 Humboldt S. Fork Mt. Comment
  UC213506  Galium parisiense Joseph P. Tracy 1920-7-11 5343 Humboldt near Arcata (around Humboldt Bay); Northern Coast Ranges, Fickle Hill 304 Comment
  BLMAR206  Galium parisiense Jennifer Anthony-Wheeler 1996-7-9 206 Humboldt Pilots ridge., growing in warm, dry, rocky soil in understroy in mixed hardwood forest 1280 Comment
  JEPS6617  Galium porrigens var. porrigens Joseph P. Tracy 1926-4-11 7406 A & B Humboldt Bridgeville 198 Comment
  UC602544  Galium trifidum Joseph P. Tracy 1934-7-2 13287 Humboldt mouth Little River 6 Comment
  SD88387  Galium trifidum subsp. columbianum Darley F. Howe 1972-6-30 Humboldt Trinidad Comment
  UC127829  Gamochaeta ustulata Joseph Burtt Davy and Walter C. Blasdale 1899-5 5465 Humboldt near Elk Prairie; North Western California Comment
  HSC72784  Garrya buxifolia M. A. Baker 1980-7-11 2798 Humboldt Near Red Mtn. 1341 Comment
  HSC39952  Garrya elliptica Linda M. Barker 1976-1-24 1310 Humboldt 3 mi. W of Arcata Comment
  UC154097  Garrya elliptica J. P. Tracy 1901-4-14 1030 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa Comment
  UC630637  Garrya elliptica Joseph P. Tracy 1939-3-19 16203 Humboldt near Blue Slide (on Van Duzen River, Root Grade); Van Duzen River 91 Comment
  HSC82186  Garrya fremontii Thomas W. Nelson 1977-6-15 3444 Humboldt Along old road to ski area 1372 Comment
  POM290957  Gastridium phleoides Lyman Benson 1929-7-16 1648 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  HSC59858  Gaultheria ovatifolia M. A. Baker 1979-7-6 1011 Humboldt .6 k W of FS rd. 15N01 on rd. 12N16, toward Bald Mtn. Comment
  CHSC593  Gaultheria shallon Vesta Holt 1941-5-30 Humboldt Comment
  CHSC68497  Gaultheria shallon Vernon H. Oswald 1997-4-10 8328 Humboldt Elk Head, north end of Trinidad State Beach. 30 Comment
  HSC59210  Gaultheria shallon Terry Roth 1979-5-29 103 Humboldt Arcata, entrance to the Canyon Dorms of Humboldt State University Comment
  HSC7805  Gaultheria shallon Dan O'Brien 1962-5-9 Humboldt 4 1/2 mi. E on Fickle Hill Rd. Comment
  HSC7812  Gaultheria shallon J. Pursell 1964-11-1 1111 Humboldt Hoopa Valley Hwy. 96 Comment
  RSA506992  Gaultheria shallon W. K. Parks 1932-06 1404 Humboldt Vicinity of Trinidad. Comment
  UC1193364  Gaultheria shallon P. Zinke 1950-9-21 164 Humboldt Outside National Forest, Kerr Peak Kerr Peak; Outside National Forest, Kerr Peak 609 Comment
  JEPS66611  Gaultheria shallon W. L. Jepson 1902-6-29 1952 Humboldt Redwood Creek at Berry Ranch, (Expedition) from Ukiah to the Hupa Indian Reservation Redwood Creek; , Berry Ranch Comment
  UCSC000552  Gaultheria shallon Dorothy Tebbe 1929-6-12 25 Humboldt woods along coast just east of Eureka Comment
  UC1196967  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-8-30 13044 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC1196969  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1919-9-18 5239 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  POM223144  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1932-7-11 10400 Humboldt Klamath Mountains, Trinity Summit, open ground at Corral Prairie. 1524 Comment
  UC198620  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1917-9-2 4850 Humboldt Grouse Mt. Northern Coast Ranges (slopes high up) 1524 Comment
  HSC81905  Gayophytum humile Thomas W. Nelson 1979-7-11 4993 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  CDA4089  Genista monspessulana T. C. Fuller 1958-6-17 570 -58 Humboldt Lower Mattole. 0 Comment
  CAS-BOT-BC208036  Genista monspessulana Aven Nelson; Ruth A. Nelson 1933-5-15 580 Humboldt Redwood highway near Crescent City Comment
  JEPS47044  Gentiana affinis var. ovata Joseph P. Tracy 1930-7-27 9110 Humboldt Bear River Ridge North Coast Ranges 609 Comment
  UC562301  Gentiana affinis var. ovata Joseph P. Tracy 1930-7-27 9110 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  CAS-BOT-BC217417  Gentiana plurisetosa D. H. Esplin 1969-10-14 20 Humboldt One mile north of North Trinity Mountain, Six Rivers N.F. 1828 Comment
Read comments
Dec 21 2017
  HSC23999  Geranium bicknellii Tim Baroni 1971-7-6 125 Humboldt 15 mi. S of Ferndale on Mattole Rd. 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
  UC1197407  Geranium dissectum Joseph P. Tracy 1936-6-9 14880 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  UC169886  Geranium dissectum Harley P. Chandler Jun 1901 1420 Humboldt Klamath River North Coast Ranges Comment
  HSC79375  Geranium dissectum Kenneth Clark 1980-5-10 647 Humboldt Access trail to West beach, coastal bluffs of Point Delgada 9 Comment
  HSC8640  Geranium dissectum R. D. Modafferi 1965-5-13 103 Humboldt 2.3 mi. N of Trinidad on Trinity St. 305 Comment
  HSC78961  Geranium molle L. P. Janeway, K. Berg 1984-4-11 724 Humboldt N Spit of Humboldt Bay, turnout along Samoa Rd., across from boat ramp just N of Coast Guard Station 3 Comment
  UC169880  Geranium oreganum Joseph P. Tracy Jun 1901 1272 Humboldt Hupa Indian Reservation North Coast Ranges 609 Comment
  UC492183  Geum macrophyllum var. perincisum Joseph P. Tracy 1932-7-14 10540 Humboldt at Corral Prairie, Klamath Mountains, Trinity Summit Corral Prairie; Klamath Mountains, Trinity Summit, Corral Prairie 1524 Comment
  HSC104327  Gilia capitata James Regan, Humboldt Redwood Co., LLC 2010-6-23 25 Humboldt Nanning Creek, east of Scotia 213 Comment
  RSA275284  Gilia capitata J. P. Smith 1973-5-26 6816 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  SEINET6969928  Gilia capitata Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  HSC36617  Gilia capitata subsp. pacifica J. D. Ackerman 1974-5-25 266 Humboldt 0.25 mi. S of Lufenholtz Beach between Moonstone and Trinidad 6 Comment
  UC1197926  Gilia capitata subsp. pacifica Joseph P. Tracy 1930-5-25 8725 Humboldt Bridgeville 198 Comment
  UC133633  Gilia capitata subsp. pacifica Joseph P. Tracy 1907-7-4 2583 Humboldt sandy hillside of coast bluffs between Trinidad and mouth Little River; Northern Coast Ranges, btw Trinidad and Little River 30 Comment
  HSC95545  Gilia millefoliata Andrea Pickart 2002-5-13 101 Humboldt Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 0 Comment
  HSC44404  Githopsis specularioides R. York 1978-5-6 156 Humboldt 4 mi. W of Hwy. 96, on Bluff Creek Rd. 610 Comment
  CAS-BOT-BC218435  Glehnia littoralis subsp. leiocarpa Carl B. Wolf 1937-6-18 8906 Humboldt Centerville Beach 3 Comment
  UC1197365  Glehnia littoralis subsp. leiocarpa J. P. Tracy 1901-5-18 1097 Humboldt sand hills of Ocean Beach at Samoa opposite Eureka Comment
  RSA624796  Glyceria declinata Gordon Leppig 1996-5-5 329 Humboldt Arcata, Healthsport parking lot of Union Street. 2 Comment
  UC34100  Glyceria elata Joseph Burtt Davy 1899-6-9 5367 Humboldt Harris Comment
  SBBG29159  Glyceria occidentalis J. P. Tracy 1933-7-20 Humboldt Arcata Bottom 15 Comment
  HSC98751  Glyceria striata Cara Witte 2007-7-11 499 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  SEINET10591165  Glyceria striata Harley P. Chandler Chandler 1526 Humboldt Klamath River. 427 Comment
  JEPS33992  Gnaphalium palustre W. L. Jepson 1921-8-7 9331 Humboldt Stone Lagoon Comment
  HSC28140  Goodyera oblongifolia J. D. Ackerman 1973-8-23 117 Humboldt 2 mi. N of Manila Comment
  RSA381800  Goodyera oblongifolia Jane Turner, Francis M. Ball 1962-7-10 1141 Humboldt East Fork Willow Creek Forest Camp, Hwy 299 ca. 5 mi. W of Willow Creek in Six Rivers National Forest. 457 Comment
  UC14960  Goodyera oblongifolia Harley P. Chandler June, 1901 1397 A Humboldt North Coast Ranges, Hupa Indian Reservation Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC179961  Goodyera oblongifolia Joseph P. Tracy 1914-9-6 4624 Humboldt between High Prairie and Snow Camp (Northern Coast Ranges, Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  HSC98225  Goodyera oblongifolia A. M. Montalvo, J. D. Ackerman 1974-7-17 374 Humboldt About 7 mi. E of Carlotta, off Hwy. 36. Redwood Grove, E of Van Duzen Grove County Park. Van Duzen River Valley. 61 Comment
  CAS-BOT-BC304748  Grindelia hirsutula A. A. Heller 1923-7-7 13764 Humboldt Along the Redwood highway, near the Eel River bridge south of Garberville Comment
  CAS-BOT-BC304758  Grindelia hirsutula Carl B. Wolf 1937-9-9 9305 Humboldt Coast, 2 mi. So. of Cape Mendocino 6 Comment
  HSC12338  Grindelia hirsutula Steve Dorei 1970-10-26 116 Humboldt Arcata, on South G St. near curve Comment
  JEPS41893  Grindelia hirsutula W. L. Jepson 1936-8-18 17944 Humboldt Capetown Capetown (grassy flats by the sea) Comment
  RSA125369  Grindelia hirsutula Peter H. Raven, Richard Snow 1958-7-21 13659 Humboldt Cape Mendocino Comment
  SEINET11835894  Grindelia hirsutula var. davyi Unknown 1936-1 13195 Humboldt near Ukiah Comment
  HSC56456  Hackelia bella Griswold, Butler 1979-7-12 7233 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC74384  Hackelia bella M. A. Baker 1980-6-28 2473 Humboldt Near Mad River Buttes 1445 Comment
  HSC102116  Hastingsia alba M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1020 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC102526  Hastingsia alba M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1513 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC76206  Helenium bigelovii Overton, Butler 1979-8-2 12532 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  RSA12428  Helenium bigelovii C. B. Wolf 1934-7-2 5866 Humboldt At small lake at Snow Camp (Mtns E of Korbel) 1372 Comment
  RSA168831  Helenium bigelovii Joseph P. Tracy 1949-8-11 18462 Humboldt Snow Camp. 1402 Comment
  HSC91912  Helenium bolanderi E. Mackey 1986-8-2 Humboldt Patrick's Point State Park; near Ceremonial Rock Comment
  HSC96470  Helenium bolanderi Gordon Leppig 1997-6-19 454 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  JEPS35027  Helenium bolanderi Joseph P. Tracy 1937-7-16 15431 Humboldt Trinidad 60 Comment
  CAS-BOT-BC306871  Helenium bolanderi L. R. Abrams; R. Bacigalupi 1922-6-25 8261 Humboldt Between Trinidad and Big Lagoon Comment
  JEPS35522  Helenium puberulum W. L. Jepson 1921-9-10 9458 Humboldt flat at Philipsville Comment
  HSC44613  Hemitomes congestum R. York 1978-6-5 190 Humboldt 12 mi. up Waterman Ridge Rd. off of Hwy. 299. Bulk Collection 123 610 Comment
  CAS-BOT-BC310078  Hemizonella minima Doris Kildale 1931-5-10 10549 Humboldt Snow Camp Comment
  CAS-BOT-BC306080  Hemizonia congesta subsp. clevelandii H. E. Parks; J. P. Tracy 1930-5-25 0880 Humboldt Near Bridgeville Comment
  HSC5818  Hemizonia congesta subsp. tracyi H. E. Parks, J. P. Tracy 1930-5-25 880 Humboldt Bridgeville 457 Comment
  UC1199366  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1940-10-17 16768 Humboldt Camp Grant, Eel River 45 Comment
  UC176756 Image available Hemizonia congesta subsp. tracyi J. P. Tracy 1908-7-30 2754 Humboldt opposite Buck Mountain; valley of Van Duzen River; valley of Van Duzen River opposite Buck Mt., Humboldt Co. 762 Comment
  UC195063  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1916-6-19 4708 Humboldt Laribee Creek 457 Comment
  CHSC1956  Heracleum lanatum A. Small 1953-4-1 Humboldt Near Ferndale. Comment
  UC180240  Heracleum lanatum Joseph P. Tracy 1914-6-14 4511 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  HSC76200  Heracleum maximum Overton, Butler 1979-8-2 12523 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UCSB25051  Heracleum maximum Keefe, Joseph 1967-7-8 Humboldt Brushy roadside, junction crannell Road and Little River Drive, north of Eureka 6 Comment
  UC1223121  Hesperevax acaulis var. robustior Joseph P. Tracy 1949-6-12 18312 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley 152 Comment
  UC165831  Hesperevax sparsiflora var. brevifolia Joseph P. Tracy 1905-4-30 2173 Humboldt Humboldt Bay Comment
  RSA47118  Heteromeles arbutifolia Doris K. Kildale 1926-6-13 s.n. Humboldt Bruceland Bridge Comment
Read comments
Jul 24 2020
  RSA0075926  Heterotheca oregona S. K. Harris 1938-8-24 881 Humboldt Sand of Eel River, near Fernbridge. Comment
  CAS-BOT-BC311081  Heterotheca oregona var. rudis H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans Comment
  RSA93319  Heterotheca oregona var. rudis F. W. Peirson 1926-7-13 7051 Humboldt Near Blue Lake, Mad River Comment
  HSC56071  Heuchera micrantha G. L. Clifton, Griswold 1979-7-31 11740 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  CHSC40208  Heuchera micrantha var. pacifica L. P. Janeway 1984-5-28 842 Humboldt Benbow State Recreation Area along South Fork Eel River. Slope above old Hwy 101. 121 Comment
  JEPS26199  Heuchera rubescens Joseph P. Tracy 1932-7-18 10715 Humboldt head of Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  CAS-BOT-BC312390  Hieracium albiflorum Doris K. Kildale 1926-6-6 2118 Humboldt Gold Bluffs Comment
  CAS-BOT-BC312389  Hieracium albiflorum Doris K. Kildale 1925-7-5 1022 Humboldt Willow Creek Flat, Trinity River Valley 152 Comment
  HSC44097  Hieracium albiflorum Thomas W. Nelson, Jane P. Nelson 1977-8-6 3706 Humboldt Beside road 2S08 at Alder Spring 1585 Comment
  UC1223084  Hieracium albiflorum Joseph P. Tracy 1948-9-5 18200 Humboldt near Grizzly Camp; Trinity Summit Comment
  UC166227  Hieracium albiflorum Joseph P. Tracy 1908-6 2880 Humboldt nw slope Buck Mountain (near Van Duzen River); Northern Coast Ranges, Van Duzen River 762 Comment
  CAS-BOT-BC318530  Hieracium greenei Freed W. Hoffman 1949-7-15 3010 Humboldt East slope of Mule Slide, Franciscan sandstone, Mt. Lassic group a little south of Blue Ridge Comment
  UC165196  Hieracium nudicaule Joseph P. Tracy 1909-8-1 3066 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  RSA183516  Hierochloe occidentalis G. N. Bos 1965-5-2 248 Humboldt 8 miles east of Korbel on Bald Mountain Road 793 Comment
  SEINET270546  Hierochloe occidentalis Richard R. Halse 1996-3-26 5020 Humboldt Redwood National Park ; At junction of Bald Hills Road and Holter Ridge Bike Route 11 miles southeast of US Highway 101 708 Comment
  UC526828  Hierochloe occidentalis Joseph P. Tracy 1926-2-28 7382 Humboldt Willow Creek Canyon Northern Coast Ranges 304 Comment
  HSC27046  Holcus lanatus Brad W. Klipfel 1973-8-24 284 Humboldt Near Hwy. 101 Comment
  HSC59438  Holcus lanatus Kenneth Clark 1979-4-21 144 Humboldt Little River flood plain (alluvium), 4.5 miles from McKinleyville, 200 yards E of Hwy. 299 Comment
  SBBG83770  Holcus lanatus J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka; Loleta Comment
  SEINET181175 Image available Holcus lanatus Bassett Maguire, R Maguire; CB Maguire 1934-6-8 15060 Humboldt Coolidge, Redwood Park. Comment
  UC38600  Holcus lanatus Harley P. Chandler May 1901 1118 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 30 Comment
  HSC74742  Holodiscus discolor Gail Newton 1981-7-24 2295 Humboldt Near Chaparral Mtn. 1512 Comment
  HSC99598  Holodiscus discolor Jimerson, J. Pageau 1979-8-10 716 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  RSA21673  Holodiscus discolor Carl B. Wolf 1937-8-13 9227 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  UC1198702  Holodiscus discolor J. P. Tracy 1901-6-16 1150 Humboldt immediate vicinity of Eureka 0 Comment
  UCD18348  Holodiscus discolor K. Esau 1934-5-6 s.n. Humboldt above Fort Seward. 457 Comment
  HSC10163  Hordeum brachyantherum D. J. McVean 1965-5-22 85 Humboldt In field W of Jackson Rd., 1/4 mi N of Samoa Blvd. Comment
  RSA87062  Hordeum brachyantherum Joseph P. Tracy 1933-6-6 12508 Humboldt Trinidad 9 Comment
  SEINET200843 Image available Hordeum brachyantherum Joseph Tracy, Roland von Bothmer; 1980 1911-6-25 3252 Humboldt Bucksport. Region about Humboldt Bay 0 Comment
  CAS-BOT-BC281264  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1932-7-10 10389 Humboldt Klamath Mountains, Trinity Summit. At Corral Prairie 1524 Comment
  UCSB2822  Horkelia tridentata Constance, Lincoln; Beetle, Alan; Tracy, Joseph 1940-5-17 Humboldt Larrabee Valley, near Eureka 762 Comment
  CAS-BOT-BC537897  Horkelia tridentata var. flavescens Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  OBI13229  Hosackia rosea Joseph P. Tracy 1949-6-20 18321 Humboldt Near Boynton Prairie 12 mi SE of Arcata Comment
  HSC39451  Hydrocotyle ranunculoides Linda M. Barker 1976-11-6 1704 Humboldt 3 mi W of Arcata Comment
  HSC62688  Hydrophyllum tenuipes Michelle Stevens 1979-4-21 60 Humboldt Ponds across from Clam Beach 0 Comment
  BLMAR562  Hypericum Jennifer Wheeler 2009-7-21 562 Humboldt Headwaters Forest Reserve, along Elk River trail just past yew trees on right 60 Comment
  HSC74430  Hypericum anagalloides Gail Newton 1980-8-10 2060 Humboldt Near Blake Mtn. 1707 Comment
  RSA12422  Hypericum androsaemum C. B. Wolf 1934-7-2 5874 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  POM203702  Hypericum formosum var. scouleri I. L. Wiggins 1932-7-18 5886 Humboldt Boggy meadow between Arcata and Bayside Comment
  UC1198400  Hypericum perforatum Joseph P. Tracy 1934-7-9 13346 Humboldt Dobbyn Creek 152 Comment
  UC1198412  Hypericum perforatum Joseph P. Tracy 1926-7-25 7754 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 152 Comment
  UCR32144  Hypericum perforatum David J. Keil 1983-7-1 17279 Humboldt North Coast Range, Bull Creek Flats Road, 2.5 mi. NE of Honeydew Comment
  CAS-BOT-BC401228  Hypericum perforatum Doris K. Kildale 1925-6-20 711 Humboldt Coast above Big Lagoon Comment
  HSC67970  Hypericum perforatum J. P. Smith, Steve Selva 1970-6-14 3831 Humboldt Along Hwy. 96 at Whitmore Creek. 152 Comment
  HSC99557  Hypericum perforatum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 222 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC166804  Hypochaeris radicata J. P. Tracy 1909-7-4 3007 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC206847  Iliamna latibracteata C. B. Wolf 1934-7-3 5909 Humboldt 3 miles north of Orick on Redwood Highway, Davison's Ranch on Prairie Creek 60 Comment
  NY177411  Iliamna rivularis var. rivularis H. N. Mozingo 1976-6-28 76100 Humboldt Outside of Humboldt National Forest, at roadside near Solid Silver Creek 1691.6 Comment
Read comments
Feb 27 2012
  SEINET4170666  Iris Unknown 1942-5-12 Humboldt Klamath River 2 mi.'s N of Orleans Comment
  HSC13869  Iris douglasiana W. A. Heaton 1965-4-10 22 Humboldt 0.5 mi. N of Trinidad State Park Comment
  JEPS17227  Iris douglasiana Joseph P. Tracy 1939-6-17 16311 Humboldt vicinity Carlotta 30 Comment
  JEPS17241  Iris douglasiana Lincoln Constance 1934-5-31 763 Humboldt from w boundary of park to Grasshopper Pk. (Squaw Cr.) (Bull Creek flat, along Bull Creek, n side of creek); South Fork Eel River, Bull Creek Region Comment
  RSA40408  Iris douglasiana Philip A. Munz, Lee W. Lenz 1948-8-13 12350 Humboldt 8 miles east of Blue Lake, on Highway 299 305 Comment
  RSA70604  Iris douglasiana Frank W. Peirson 1923-7-12 3692 Humboldt About 5 miles north of Orick Comment
  UC14921  Iris douglasiana Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5441 Humboldt Hubbard's Station to Elk Prairie; North Coast Ranges Comment
  UC667112  Iris douglasiana Joseph P. Tracy 1935-6-23 14001 Humboldt e of Orick (Bald Hills Road) 609 Comment
  UC667118  Iris douglasiana Joseph P. Tracy 1939-6-17 16311 Humboldt vicinity Carlotta 30 Comment
  BLMAR624  Iris purdyi Jennifer Wheeler 2011-6-1 624 Humboldt Lacks Creek, Bair rd near pickle springs 609 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
  RSA44510  Iris tenax subsp. klamathensis Henry M. Pollard 1948-7-22 s.n. Humboldt Wooded flat near Orleans Comment
  SEINET12051377  Iris tenax subsp. klamathensis F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -314 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  HSC44321  Iris tenuissima Brad Klipfel 1975-6-17 668 Humboldt Horse Mtn. Comment
  RSA135920  Iris tenuissima Lee W. Lenz, E. K. Balls 1955-5-15 20734 Humboldt 15.8 miles southeast along U.S. Highway 299 from Willow Creek, towards Arcata 579 Comment
  HSC97561  Iris tenuissima subsp. tenuissima Cara Witte 2007-6-1 162 Humboldt Horse Mountain Botanical Area. Along Forest Service 6N38. 1311 Comment
  HSC45611  Isatis tinctoria Diane L. Reed 1978-5-7 68 Humboldt E fork of Willow Creek, 34 mi. from Hwy. 101 on Hwy. 299 Comment
  UC667940  Isoetes howellii Joseph P. Tracy 1937-8-12 15650 Humboldt Snow Camp 1402 Comment
  SEINET4170786 Image available Isolepis cernua Unknown 1920-6-6 5336 Humboldt Spring along Freshwater Creek 30 Comment
  HSC5882  Jaumea carnosa H. E. Parks Aug 1941 24187 Humboldt Big Lagoon; Causeway, W end. Comment
  UC1103037  Juncus bolanderi Joseph P. Tracy 1900-9-2 932 Humboldt Eureka Northern Coast Region 0 Comment
  CDA39158  Juncus breweri T. C. Fuller 1961-9-28 7057 Humboldt 1.5 miles south of Samoa. 0 Comment
  UCD141361  Juncus bufonius Linda M. Barker 1976-6-1 1551 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC89596  Juncus bufonius var. bufonius M. Roantree 1985-5-2 31 Humboldt E side of Trinidad Head. Comment
  UC249813  Juncus covillei var. obtusatus Joseph P. Tracy with H. E. Parks 1924-8-3 6759 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC1103039  Juncus ensifolius Joseph P. Tracy 1926-6-27 7665 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  HSC46967  Juncus falcatus J. P. Smith, Thomas W. Nelson 1977-6-30 9213 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  UC205904  Juncus hesperius Hy Melde 1902-6-23 Humboldt Eureka Comment
  HSC40774  Juncus laccatus Thomas W. Nelson 1976-7-9 3013 Humboldt S of Mt. Lassic (Signal Peak) 1707 Comment
  HSC23804  Juncus lescurii Tim Baroni 1971-6-26 69 Humboldt Out the Samoa Peninsula just opposite the Georgia Pacific pulp mill Comment
  CAS-BOT-BC154066  Juncus planifolius Peter F. Zika 2008-10-19 24229 Humboldt E side of Route 101, near Exit 728 for Trinidad Beach 110 Comment
  UC183779  Juncus saximontanus Joseph P. Tracy 1912-7-31 3911 Humboldt near Buck Mountain summit; Northern Coast Ranges 1219 Comment
  RSA178532  Juncus tenuis Joseph P. Tracy 1937-8-3 15609 Humboldt Near Blue Lake, along Mad River. 15 Comment
  CAS-BOT-BC235877  Keckiella corymbosa Joseph P. Tracy 1920-8-15 5360 Humboldt Klamath River, at Bluff Creek 152 Comment
  CAS-BOT-BC235886  Keckiella corymbosa Doris K. Kildale 1927-8-7 3862 Humboldt Kneeland Prairie 762 Comment
  HSC50858  Keckiella corymbosa Walter Overton, Marvin Butler 1979-7-25 9882 Humboldt Near Sims Mtn., close to the town of Willow Creek 1296 Comment
  SD87718  Keckiella corymbosa Frank W. Peirson 1926-7-12 7025 Humboldt Klamath River near Weitchpec Comment
  UC213499  Keckiella lemmonii Joseph P. Tracy 1920-8-15 5352 Humboldt mouth of Slate Creek (Klamath River); Northern Coast Ranges 152 Comment
  UC479136  Keckiella lemmonii Marcus E. Jones, A. M. 1931-7-16 28828 Humboldt e of Arcata (Junction) Comment
  HSC56117  Kelloggia galioides Gilbert Muth 1979-8-1 11893 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC61761  Kickxia elatine Ruby Van Deventer 1963-7-14 Humboldt Along the Klamath River at Pecwan Comment
  RSA244957  Kickxia elatine David Johnson 1973-11-15 s.n. Humboldt Growing along West End Rd. ca 50 yds. north of the highway 101 overpass. Beside the railroad tracks. Comment
  RSA273316  Kickxia elatine James Payne Smith 1976-10-30 8997 Humboldt Mad River, east of the Essex Lane exit. Comment
  UCSB30601  Kickxia elatine Edwards, David 1974-7-26 Humboldt Pond ca. 50 ft. NW of Grand Rd., ca. 1 1/2 mi.SW of Korbel and ca. 11/2 mi. NE of Mad River 18 Comment
  UC1196128  Kopsiopsis strobilacea Joseph P. Tracy Jul 16-19, 1930 9030 Humboldt Northern Coast Ranges. South Fork Mountain, along summit near Blake lookout. 1706 Comment
  UCD133638  Lapsana communis Joseph P. Tracy 1976-6-6 7553 Humboldt Bair's on Redwood Creek. 304 Comment
Read comments
Jun 28 2015
  UCSB30626  Lapsana communis Edwards, David 1974-7-13 Humboldt NE facing bank of ditch at the NE end of a field located to the SW of the intersection of Fickle Hill Rd. and Hill St., ca. 1/3 mi. E. of U.S. 101, Arcata 36 Comment
  CAS-BOT-BC337991  Lasthenia californica Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  UC582762  Lasthenia californica subsp. californica Joseph P. Tracy 1932-6-26 10265 Humboldt Valley of South Yager Creek 762 Comment
  HSC14738  Lathyrus littoralis Norman H. Moe 1962-5-3 Humboldt Lanphere's Place Comment
  HSC47485  Lathyrus littoralis Sheila Logan 1978-4-7 3 Humboldt Samoa sand dunes, 1/4 mi. N of Coast Guard Station. Comment
  HSC45332  Lathyrus littoralis R. York, Linda York 1978-4-1 100 Humboldt End of lighthouse Rd., 2 mi. SE of Petrolia. Comment
  HSC49393  Lathyrus littoralis R. York 1979-5-15 291 Humboldt Coastal strand opposite the Louisiana Pacific Mill in Samoa. Comment
  RSA239724  Lathyrus littoralis Larry E. DeBuhr, Gary D. Wallace 1973-5-22 1152 Humboldt In sand at beach at Big Lagoon. Comment
  HSC48740  Lathyrus nevadensis var. nevadensis Brad Klipfel 1973-6-10 65 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC902096  Lathyrus nevadensis var. nevadensis Harold E. Parks and Joseph P. Tracy 1949-6-25 11659 Humboldt near Mud Springs (on the Trinity Summit Road) 1341 Comment
  CAS-BOT-BC205040  Lathyrus palustris Milo S. Baker 1931-7-17 5407 Humboldt South side of Big Lagoon near cottages Comment
  RSA64962  Lathyrus torreyi C. L. Hitchcock 1949-6-7 19084 Humboldt Ca 15 miles E of Blue Lake, along Highway #299. Comment
  SEINET12154020  Lathyrus torreyi J. P. Tracy 1946-1 17523 Humboldt Hoopa Valley, W side nr SW corner Comment
  UC1013059  Lathyrus vestitus C. L. Hitchcock 1948-6-7 19085 Humboldt ca 15 mi e Blue Lake (along Highway 299) Comment
  UC175635  Lathyrus vestitus Joseph P. Tracy 1913-6-26 4352 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  RSA64968  Lathyrus vestitus subsp. bolanderi C. L. Hitchcock 1949-6-7 19083 Humboldt 1/5 mile S of Pepperwood, along Highway #101. Comment
  JEPS55357  Lathyrus vestitus var. ochropetalus Mrs. M. H. Manning 1900-1 Humboldt Hupa Valley Comment
  CAS-BOT-BC326000  Layia carnosa Peter H. Raven 1963-5-15 18370 Humboldt Dunes above coast, Lanphere Ranch just W of Mad River Slough, near Arcata. Comment
  JEPS13463  Layia carnosa Joseph P. Tracy 1917-5-30 4796 Humboldt sand dunes of coean beach at mouth Little River; Northern Coast Region Comment
  UC495637  Layia carnosa Joseph P. Tracy 1932-5-16 10106 Humboldt near Samoa; Humboldt Bay 6 Comment
  BLMAR61  Layia carnosa Jennifer Anthony-Wheeler 1994-3-31 61 Humboldt King range, Matole beach South of campground 12 Comment
  RSA249507  Ledum glandulosum subsp. columbianum R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-9 35295 Humboldt Big Lagoon. 3 Comment
  RSA18016  Leontodon nudicaulis C. B. Wolf 1927-8-22 777 Humboldt Big Lagoon. Comment
  UC1223216  Leontodon saxatilis Joseph P. Tracy 1948-7-11 18072 Humboldt at Lack Pond Comment
  UC1239532  Leontodon saxatilis subsp. saxatilis Joseph P. Tracy 1918-8-15 5094 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC89074  Lepidium didymum M. S. Taylor 1980-10-9 3365 Humboldt Bed of Jacoby Creek, ca. 0.25 mile west of its junction with Arcata, in Bayside. 15 Comment
  CAS-BOT-BC89492  Lepidium heterophyllum Joseph P. Tracy 1942-6-15 17140 Humboldt Miranda. 91 Comment
  UC1225755  Lepidium nitidum Joseph P. Tracy 1948-5-31 18012 Humboldt Alder Point 304 Comment
  CAS-BOT-BC12876  Lepidium strictum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta. Comment
  RSA152321  Lepidium strictum Joseph P. Tracy 1946-5-30 17540 Humboldt Vicinity of Carlotta. 30 Comment
  CAS-BOT-BC341827  Lessingia nemaclada Joseph P. Tracy 1929-8-18 8656 Humboldt Northern Coast Ranges. Dinsmore's Ranch: On Van Duzen River opposite Buck Mountain 670 Comment
  HSC5358  Leucanthemum vulgare John A. Dubois 1962-5-23 19 Humboldt 20 mi. E of Arcata. Comment
  HSC67026  Leucanthemum vulgare J. P. Smith 1970-6-7 3803 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  RSA298334  Lewisia cotyledon Marc Baker 1980-7-24 378155 Humboldt F of Salmon quad, Orleans Mtsn. 73 Comment
  UC1198373  Lewisia nevadensis Joseph P. Tracy 1938-6-13 15924 Humboldt at Cold Springs Grouse Mountain 1432 Comment
  SEINET200646 Image available Leymus X vancouverensis J. P. Tracy 1930-1 8894 Humboldt Cape Mendocino; near open shore, south of point of the Cape. Comment
  UC526794  Leymus mollis subsp. mollis Joseph P. Tracy 1927-5-1 7954 Humboldt sand dunes near Samoa (next to ocean); Northern Coast Ranges, Humboldt Bay 6 Comment
  CAS-BOT-BC436497  Ligusticum apiifolium Alice Eastwood; John Thomas Howell 1937-6-26 5073 Humboldt Near Berry Summit Comment
  HSC75965  Ligusticum grayi Overton, Butler 1979-8-2 12584 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC1198267  Lilaea scilloides Joseph P. Tracy 1933-5-20 12274 Humboldt back of Cape Mendocino; Cape Ridge Comment
  SEINET12057698  Lilium F. H. Utech 1977-6-30 s.n. Humboldt Redwoods National Park Comment
  RSA12433  Lilium bolanderi Carl B. Wolf 1934-7-2 5860 Humboldt 2 miles from Snow Camp on road to Bald Mountain. 1067 Comment
  CAS-BOT-BC508390  Lilium columbianum V. Rattan 1879-1-1 s.n. Humboldt Klamath Comment
  CAS-BOT-BC508405  Lilium columbianum A. M. Vollmer; L. Beane 1951-7-1 s.n. Humboldt A few miles north of Arcata, near U.S. Highway 101 Comment
  CAS-BOT-BC130638  Lilium kelloggii Albert M. Vollmer; Ira L. Wiggins 1940-7-4 6 Humboldt On Orick-Weitchpec road, 15 miles west of Weitchpec 944 Comment
  UC303044  Lilium pardalinum Joseph P. Tracy 1926-6-27 7668 Humboldt Horse Mountain; Northern Coast Ranges 1463 Comment
  UC30065  Lilium pardalinum Chesnut and Drew 1888-7-20 Humboldt Pilot Creek Comment
  HSC57704  Lilium pardalinum subsp. pardalinum G. L. Clifton, Griswold 1979-7-25 10947 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  CAS-BOT-BC132960  Lilium rubescens A. M. Vollmer; L. Beane 1951-6-1 147 Humboldt On trail to Blohn's cabin, Bald Mountain, east of Korbel Comment
  HSC73704  Lilium rubescens M. A. Baker 1980-7-23 3184 Humboldt Near Orleans Mtn. 1859 Comment
  CHSC19733  Limnanthes douglasii D. E. Anderson 1965-5-8 3634 Humboldt About 4 miles east of Berry Summit, along Hw. 299. Roadside ditch. Comment
  JEPS19583  Limnanthes douglasii Joseph P. Tracy 1933-5-20 12271 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  HSC45598  Limnanthes douglasii subsp. nivea Diane L. Reed 1978-5-27 131 Humboldt Horse Mtn., Titlow Hill Rd., 2.7 mi. from Hwy. 299 Comment
  HSC69869  Limnanthes douglasii subsp. nivea Thomas W. Nelson 1978-5-28 4098 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  UC1198589  Linanthus androsaceus Joseph P. Tracy 1927-7-4 8232 Humboldt Iaqua 609 Comment
  UC1222731  Linanthus androsaceus Joseph P. Tracy 1950-6-15 18817 Humboldt 7 mi n Harris (at Huestis Rock, ne side of Mail Ridge); Mail Ridge, Huestis Rock Comment
  JEPS23912  Linanthus androsaceus Volney Rattan 1882-1 Humboldt Mouth of Mad River Comment
  UC146166  Linanthus bicolor Joseph P. Tracy 1908-6-9 2650 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC52532  Linanthus bicolor J. P. Tracy 1902-7-4 1763 Humboldt immediate vicinity Eureka 0 Comment
  UC1198574  Linanthus bicolor Joseph P. Tracy 1937-5-17 15288 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC176973  Linanthus bicolor Joseph P. Tracy 1913-6-16 4143 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC3907  Linnaea borealis subsp. longiflora William J. Ferlatte, B. D. Rogers 1966-6-8 2088 Humboldt 2 mi. W of Forest Glen, Granite Canyon. Comment
  SJSU918  Linnaea borealis var. longiflora J. W. Tilden 1946-6-2 999 Humboldt Bluff Cr c. 1.5 mi above its junction with Klamath R Comment
  CHSC1015  Linum bienne M. Underhill 1952-7-14 Humboldt Humboldt county. 15 Comment
  HSC15802  Linum bienne F. B. Plett 1963-4-9 15 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  HSC39076  Listera caurina J. D. Ackerman 1976-7-3 764 Humboldt 1 mi. E of Blue Lake along old state Hwy. 299. Simpson Demonstration Forest, near hwy. Comment
  HSC55134  Listera convallarioides G. L. Clifton, Griswold 1979-8-1 11972 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UC1083192  Lithocarpus densiflorus Herbert L. Mason 1928-7-14 4899 Humboldt near Garberville (East Fork of Eel River); East Fork of Eel River Comment
  CAS-BOT-BC36148  Lithocarpus densiflorus var. densiflorus Doris K. Kildale 1926-8-22 2569 Humboldt Bald Hills, east end of Tomlinson's prairie 716 Comment
  HSC20213  Lithophragma affine Elrid H. Spinas 1948-6-16 49 Humboldt Horse Mtn. Comment
  CAS-BOT-BC435645  Lithophragma heterophyllum Volney Rattan 1883-6-1 s.n. Humboldt Between Mad R. and Pilot Creek Comment
  HSC97506  Lithophragma parviflorum var. parviflorum C. Witte 2007-5-22 80 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1392 Comment
  UCD115917  Lobularia maritima Joseph P. Tracy 1946-6-2 17556 Humboldt Garden escape, sand dunes, near Samoa, on Humboldt Bay. 6 Comment
  UC1199423  Logfia filaginoides Joseph P. Tracy 1927-5-8 7972 Humboldt grassy slopes facing South Fork Eel River; Philipsville 121 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-BC283402  Lolium multiflorum Malcom A. Nobs; S. Galen Smith 1949-8-3 1177 Humboldt Salt marshes around Fields Landing Comment
  UC163597  Lolium multiflorum Jos. Burtt Davy 1899-5 5556 Humboldt Scotia Comment
  HSC27040  Lolium perenne Brad Klipfel 1973-8-24 283 Humboldt Roadside waste near Hwy. 101 Comment
  SEINET194910 Image available Lolium perenne A. A. Heller 1923-7-9 13779 Humboldt Arcata near 10 Comment
  UCD66476  Lolium perenne Collector Unknown 1923-7-18 23 Humboldt Petrolia. 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
  UC1197162  Lomatium dissectum var. dissectum Joseph P. Tracy 1927-5-15 8035 Humboldt near the South Fork Trinity R. Valley 182 Comment
  HSC74247  Lomatium macrocarpum M. A. Baker 1980-7-11 2803 Humboldt Near Red Mtn. 1433 Comment
  RSA43875  Lomatium macrocarpum H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mountain 1677 Comment
  HSC37192  Lomatium macrocarpum Barbara Kelly 1976-5-13 253 Humboldt Below road at Kneeland Airport Comment
  RSA119326  Lomatium martindalei S. Tillett 1956-7-6 627 Humboldt 12 miles from Orleans on road south from Bar Shanty road to east of Orleans 1174 Comment
  CHSC97956  Lomatium nudicaule Kaylea Eickhoff; Cara M. Witte 2005-6-3 1 Humboldt White Oak Opening, 19.3 miles south of Hwy. 299 on NF1. UTM 0441136, 4507151. 1240 Comment
  HSC74565  Lomatium triternatum M. A. Baker 1980-5-18 1369 Humboldt Near Black Mtn. 792 Comment
  HSC45502  Lomatium utriculatum M. Alcasas 1978-4-7 6 Humboldt Beside Barry Rd., 125 yds. from junction with Freshwater Rd. 857 Comment
  OBI81593  Lomatium utriculatum Coll. Tracey, Viola Call 1964-6-20 2272 Humboldt South-facing rocky outcropping near summit above Van Duzen river 7miles east of Bridgeville. 853 Comment
  POM284224  Lonicera hispidula var. vacillans Lyman Benson 1929-7-19 1864 Humboldt Dyerville to Mat[t]ole River. Comment
  UC535759  Lonicera hispidula var. vacillans Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  CHSC13520  Lonicera involucrata var. ledebourii A. R. Morrison 1974-4-27 Humboldt Scattered in open and partially shaded areas along coast ca. 2 mi. N of Trinidad. Comment
  CHSC97979  Lonicera involucrata var. ledebourii Allison Poklemba 2002-4-10 5 Humboldt Pump Station 1 of the Mad River along Warren Creek Rd., Arcata. 13 Comment
  HSC31654  Lonicera involucrata var. ledebourii Timothy B. Devine 1974-5-4 326 Humboldt Mad River floodplain 1 mi. from Blue Lake on Hatchery Rd. 305 Comment
  HSC3923  Lonicera involucrata var. ledebourii J. J. Wagoner 1965-4-3 12 Humboldt 16 mi. N of Trinidad, W of Hwy. 101 in Dry Lagoon State Beach Park. 8 Comment
  CAS-BOT-BC200913  Lotus Doris Kildale 1931-5-10 10680 Humboldt Snow Camp Comment
  CAS-BOT-BC200914  Lotus Milo S. Baker 1927-8-21 2468 a Humboldt Near Bald Mt. Comment
  UC1128989  Lotus aboriginus A. E. Wieslander 1931-5-21 212 Humboldt Kneeland China Flat Quad. Comment
  UC1223442  Lotus aboriginus Joseph P. Tracy 1937-8-15 15668 Humboldt 10 mi se Orick (near Sherman Lyon's Ranch) Comment
  SEINET3523624 Image available Lotus americanus Joseph P. Tracy 1914-7-12 4583 Humboldt Eureka 0 Comment
  HSC48615  Lotus corniculatus Mark Flippo 1978-5-23 68 Humboldt Mckinleyville, Bella Vista Rd. Comment
  HSC90323  Lotus corniculatus Jean Hanson 1980-6-22 106 Humboldt Indian (Gunther) Island, Humboldt Bay, City of Eureka. W end of Island in mud between dikes. Comment
  POM16960  Lotus crassifolius Joseph P. Tracy 1905-9-3 2389 Humboldt Immediate vicinity of Eureka. Comment
  JEPS55388  Lotus crassifolius var. crassifolius Lincoln Constance 1934-6-15 877 Humboldt Summit of Grasshopper Peak South Fork Eel River, Bull Creek Region 975 Comment
  UC1073328  Lotus formosissimus George B. Rossbach 1955-6-10 332 Humboldt Madison Grant Elk Refuge Prairie Creek Redwoods State Park Comment
  UC1223400  Lotus formosissimus Joseph P. Tracy 1938-6-17 15949 Humboldt s of Cape Mendocino point; Cape Mendocino 3 Comment
  UC33504  Lotus formosissimus Chesnut and Drew 1888-7-8 Humboldt Kneeland Prairie Comment
  HSC98242  Lotus humistratus P. N. Slattery 1963-5-18 14 Humboldt Clam Beach Comment
  UC204647  Lotus scoparius Joseph P. Tracy 1918-7-6 5048 Humboldt near Humboldt-Mendocino County line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  UC1197305  Lotus wrangelianus Joseph P. Tracy 1932-5-1 9844 Humboldt Alton, along Van Duzen River North Coast Ranges, Van Duzen River 30 Comment
  UC1565794  Lotus yollabolliensis R. Spellenberg 1990-7-9 10230 Humboldt ca 1 mi n Blake Mtn. (extreme e edge of county, 7 air mi wnw of Hyampom, 40 mi s of Calif. Hwy. 299 and Berry Summit on USFS Rd 1); South Fork Mountain 1767 Comment
  CAS-BOT-BC342558  Luina hypoleuca Carl B. Wolf 1937-8-9 9086 Humboldt Klamath River, 5 7/10 mi. above Orleans Comment
  CAS-BOT-BC198263  Lupinus Doris Kildale Gillespie 1931-6-7 10598 Humboldt South Fork Mt. Blake Lookout 1726 Comment
  UC1223267  Lupinus albicaulis var. shastensis Joseph P. Tracy 1949-6-25 18340 Humboldt at Big Hill on road w Box Camp (w slope of summit Trinity Summit); Trinity Summit, at Big Hill Comment
  JEPS64913  Lupinus albifrons Joseph P. Tracy 1916-6-19 4707 Humboldt on high ridges at Robertson Ranch; Northern Coast Ranges, Burr Creek 914 Comment
  UC146921  Lupinus albifrons var. albifrons Harley P. Chandler June, 1901 1424 Humboldt Weitchpek North Coast Ranges, Klamath River (Klamath River) 304 Comment
  CDA27377  Lupinus arboreus T. C. Fuller 1961-9-28 7052 Humboldt Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  HSC38340  Lupinus arboreus Peter Sorensen 1976-7-14 Humboldt N Spit Comment
  HSC79474  Lupinus constancei Thomas W. Nelson, Jane Nelson 1982-7-9 7079 Humboldt Mt. Lassic (Signal Peak) and saddle to E 1768 Comment
  UC169050  Lupinus formosus Joseph P. Tracy 1912-7-4 3729 Humboldt near Hydesville; Northern Coast Region, near Hydesville 60 Comment
  HSC57309  Lupinus latifolius Griswold, Butler 1979-7-10 6265 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC98986  Lupinus latifolius var. latifolius Cara Witte 2008-7-2 807 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  HSC99592  Lupinus latifolius var. latifolius K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 261 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
  HSC90754  Lupinus littoralis Gail Newton 1982-5-5 2534 Humboldt Elk River Wildlife Area, Eureka. Comment
  UC1197271  Lupinus nanus Joseph P. Tracy 1913-6-11 4090 Humboldt near Little Van Duzen Bridge 762 Comment
  HSC63182  Lupinus onustus M. A. Baker 1979-7-10 1024 Humboldt Above Bluff Creek Comment
  UC865174  Lupinus polyphyllus var. polyphyllus Eliz. Parsons Hawver June 1915 Humboldt Carlotta Comment
  JEPS65433  Lupinus rivularis Lincoln Constance 1934-5-26 675 Humboldt s end Dyerville Bridge (sand and gravel bar of South Fork Eel River); South Fork Eel River, Bull Creek Region 45 Comment
  HSC58533  Lupinus sellulus subsp. ursinus Overton, Butler 1979-7-23 9425 Humboldt Near Horse Mtn. close to Willow Creek 1478 Comment
  POM10718  Lupinus sellulus var. medius H. P. Chandler 1498 Humboldt Klamath River. 427 Comment
  HSC38371  Lupinus variicolor Peter Sorensen 1976-5-29 Humboldt King Salmon Comment
  HSC56398  Luzula comosa Griswold, Butler 1979-7-11 6968 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  UCD142118  Luzula comosa Joseph P. Tracy 1930-7-17 8972 Humboldt South Fork Mountain; opening in fir forest nera McKay Camp. 1676 Comment
  UC1152122  Luzula macrantha Joseph P. Tracy 1928-6-17 8449 Humboldt Willow Creek Canyon, along Trinity Highway Comment
  UCR265767  Luzula macrantha Peter F. Zika 2011-7-3 25500 Humboldt Outer North Coast Ranges, Titlow Hill Road, near junction with Forest Road 6N36, 1 air mi south of Horse Mountain 1410 Comment
  JEPS121643  Luzula multiflora Jennifer Buck, Danielle Roach 2009-8-19 Humboldt Kerlin Fen, South Fork Mountain. Sloping fen on schist, NE aspect. Blake Mountain quadrangle. SFM06A Comment
  SD46471  Luzula parviflora E. K. Balls, L. W. Lenz 1956-6-12 21662 Humboldt 4.4 miles southwest from Willow Creek, along US Highway 299 to Arcata. Common in shade on moist to wet seeps. 366 Comment
  HSC102059  Luzula subcongesta M. R. Mesler, Robin Bencie, K. A. Wayman 2011-7-12 1165 Humboldt Patterson Meadows 1566 Comment
  JEPS67157  Luzula subsessilis Joseph P. Tracy 1918-4-14 4877 Humboldt s end Dows Prairie (Fish's Mill Creek); Northern Coast Ranges, , s end Dows Prairie 60 Comment
  RSA32655  Lychnis coronaria Doris K. Kildale 1927-7-3 3651 Humboldt Willow Creek Flat. Comment
  HSC96476  Lycopodiella inundata Gordon Leppig 1997-6-19 460 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  JEPS371  Lycopodiella inundata Joseph P. Tracy 1928-9-8 8504 Humboldt Big Lagoon Northern Coast Ranges (in peat bog) 6 Comment
  RSA245025  Lycopodiella inundata D. E. Anderson 1963-9-6 2808 Humboldt Big Lagoon Sphagnum Bog Comment
  SEINET179615 Image available Lycopodium clavatum H. E. Parks, WK Parks 1932-7-30 1132 Humboldt 'Camp 21' Hammond Lumber Company Trinidad Comment
  UCD135967  Lycopodium clavatum K. Niles 1950-10-1 s.n. Humboldt Loleta. Comment
  OBI1071  Lycopodium inundatum Lawrence L. Kiefer 1964-5-20 1436 Humboldt Big Lagoon State Park 23 Comment
  JEPS433  Lysichiton americanus W. L. Jepson 1936-8-17 17916 Humboldt 2 mi. s. Field's Landing (near Still's ranch) Comment
  SEINET11770340  Lysichiton americanus F. H. Utech 1986-1 86 -416 Humboldt between Capetown & Ferndale along Mattole Creek, SW slope of Bear River Ridge 100 Comment
  RSA0023003  Lythrum Robert F. Thorne, P. C. Everett 1965-8-9 35324 Humboldt Clam Beach County Park: along highway. 3 Comment
  HSC43203  Lythrum hyssopifolia R. Sutherland 1976-8-13 17 .13876 Humboldt Gravel bar in Redwood Creek in Redwood grove. 87 Comment
  JEPS40326  Madia elegans Joseph P. Tracy 1921-8-21 5937 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1223209  Madia elegans Joseph P. Tracy 1950-8-4 19260 Humboldt ne of Lookout station (Grasshopper Peak, at head of Canoe Creek); Bull Creek State Park, Canoe Creek Comment
  CAS-BOT-BC344360  Madia exigua Henry M. Pollard 1948-7-21 s.n. Humboldt Near Orleans Comment
  CAS-BOT-BC343014  Madia gracilis Alice Eastwood; John Thomas Howell 1937-6-23 4755 Humboldt Dinsmores Comment
  CAS-BOT-BC343031  Madia gracilis David D. Keck 1944-7-11 5500 Humboldt Halfway between Upper Mattole and Honeydew, 12.3 miles S.E. of Petrolia, Mattole River 121 Comment
  UC165190  Madia gracilis Joseph P. Tracy 1911-6-25 3250 Humboldt at Bucksport; Eureka 0 Comment
  HSC40379  Madia sativa Linda M. Barker 1976-6-14 1592 Humboldt 3 mi. W of Arcata Comment
  UC175196  Madia sativa Joseph P. Tracy 1913-6-13 4101 Humboldt opposite Buck Mountain (valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River, Dinsmore's 762 Comment
  UC1223207  Madia sativa Joseph P. Tracy 1950-6-8 18758 Humboldt at hill leading from the coast toward Petrolia; Domingo Hill Comment
  HSC15590  Maianthemum dilatatum J. F. Knezevich 1968-5-23 458 Humboldt N of Trinidad at Big Lagoon 0 Comment
  HSC15596  Maianthemum dilatatum W. R. Brigham 1962-5-19 6 Humboldt S of Big Lagoon. Comment
  SBBG58731  Maianthemum racemosum R. Hartwell 1938-8-4 109 Humboldt opposite the Bull Crk Flat store Comment
  HSC15656  Maianthemum racemosum subsp. amplexicaule Harvey Doerksen 1962-5-4 3 Humboldt W of Korbel, S side of Mad River Comment
  HSC15650  Maianthemum racemosum subsp. amplexicaule V. G. Vieira 1963-5-2 47 Humboldt Butler Valley Ranch 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
  HSC34633  Maianthemum stellatum Robert M. Specht 1975-4-9 123 Humboldt Along base of ocean bluff from end of Murray Rd. 6 Comment
  RSA377722  Maianthemum stellatum Thomas W. Nelson, Jane P. Nelson 1977-6-19 3509 Humboldt Alder Springs 1524 Comment
  CAS-BOT-BC347411  Malacothrix floccifera Joseph P. Tracy 1911-7-4 3278 Humboldt Northern Coast Ranges. Along Willow Creek. (Tributary of Trinity River, Humboldt County) near its mouth 152 Comment
  HSC41005  Malacothrix floccifera J. O. Sawyer 1975-10-17 2716 Humboldt Along road to Brush Mountain Lookout 1189 Comment
  HSC18698  Malus fusca Gerald T. Rood 1962-5-6 9 Humboldt Kneeland Rd. ca. 1 mi. W of Barry Rd. Comment
  UC1198762  Malus fusca Joseph P. Tracy 1926-4-11 7410 Humboldt Blue Slide Northern Coast Ranges (on Van Duzen River) 91 Comment
  JEPS68651  Malva parviflora Lincoln Constance 1934-6-18 900 a Humboldt n border of Dyerville Flat (near South Fork Railroad Station and Post Office, South Fork Eel River); Bull Creek Region, South Fork Eel River Comment
  JEPS42489  Marah oregana W. L. Jepson 1902-6-24 1931 Humboldt Blue Lake Comment
  HSC45592  Marah oregana Diane L. Reed 1978-5-27 127 Humboldt Horse Mtn., on Titlow Hill Rd. 1.5 mi. from junction with Hwy. 299 Comment
  JEPS42472  Marah oregana W. L. Jepson 1932-8-3 16478 Humboldt 2 mi w Dyerville Comment
  JEPS42487  Marah oregana W. L. Jepson 1897-7-31 14136 Humboldt De Haven to Fort Bragg Comment
  UC1145132  Melica aristata Joseph P. Tracy 1948-8-15 18157 Humboldt 2 mi e Grove's Prairie (on ridge, Trinity Summit); Trinity Summit 1524 Comment
  HSC10337  Melica californica J. A. Waller 1965-5-2 31 Humboldt Along Hwy. 96 near Willow Creek. Comment
  SEINET200335 Image available Melica californica var. nevadensis J. P. Tracy 1927-5-14 7999 Humboldt Trinity River Valley near the S Fork 183 Comment
  HSC75447  Melica spectabilis J. O. Sawyer 1980-7-18 3606 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC552705  Melica subulata Joseph P. Tracy 1935-7-25 14224 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  HSC28183  Melilotus albus Richard Curtis 1973-9-28 27 Humboldt Along R.R. tracks near mouth of Nanning Cr., across Eel River from Rio Dell Comment
  UC195432  Mentha aquatica Joseph P. Tracy 1915-9-5 4665 Humboldt Eureka; Northern Coast Ranges 0 Comment
  UC175779  Mentha aquatica Joseph P. Tracy 1912-10-20 3989 Humboldt Loleta Pond; Northern Coast Ranges, Loleta pond 30 Comment
  HSC99607  Mentha canadensis C. B. Wolf 1927-8-22 768 Humboldt Big Lagoon Comment
  CHSC26754  Mentha pulegium M. S. Taylor 1977-8-5 1429 Humboldt Around ridge over Eel River, at turnoff from Hwy 101 to Ferndale, in Fernbridge. Comment
  JEPS63455  Mentha pulegium Joseph P. Tracy 1923-6-20 6336 Humboldt Briceland 304 Comment
  JEPS80896  Menziesia ferruginea B. A. Bohm, K. W. Nichols 1981-5-11 1572 Humboldt U.S. Highway 101 Mile 128.75 Comment
  SEINET7887162 Image available Micropus californicus Unknown 1942-1 s.n. Humboldt Harris Road, 1 mile east of Garberville 30 Comment
  HSC38098  Micropus californicus var. californicus Thomas W. Nelson, James Nelson 1976-5-30 2621 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC427865  Micropus californicus var. californicus H. E. Parks 1930-5-25 872 Humboldt ridges above Laribee Valley Comment
  UC1199445  Microseris laciniata subsp. laciniata Harold E. Parks and Joseph P. Tracy 1942-5-16 11569 Humboldt vicinity Garberville 152 Comment
  CAS-BOT-BC349237  Microseris nutans Joseph P. Tracy 1930-7-16 8900 Humboldt South Fork Mountain. Near McKay Camp 1676 Comment
  UC147913  Mimulus alsinoides Joseph P. Tracy 1908-6-8 2634 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1052478  Mimulus aurantiacus var. aurantiacus H. E. and S. T. Parks June 1951 Humboldt near landing, type locality Trinidad Comment
  UC1193340  Mimulus aurantiacus var. aurantiacus K. Cuff 1950-10-9 126 Humboldt 1/2 mi ne Honeydew (Quad 28A4) 152 Comment
  HSC48858  Mimulus breweri Brad Klipfel 1973-6-10 53 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC75454  Mimulus breweri J. O. Sawyer 1980-7-18 3591 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  SEINET3365865 Image available Mimulus breweri Joseph P. Tracy 1932-7-10 10375 .5 Humboldt Trinity Summit Corral Prairie in wet meadow 1585 Comment
  HSC37232  Mimulus cardinalis Lon Hall 1975-6-20 404 Humboldt About 2 mi. N from Shelter Cove Rd. on Horse Mtn. Rd., along Bear Creek, from streamside up to unused dirt logging road above creek 488 Comment
  UC1196772  Mimulus cardinalis Joseph P. Tracy 1924-8-10 6795 Humboldt 10 mi e Carlotta (near Strong's Station); Northern Coast Ranges 91 Comment
  UC336872  Mimulus dentatus V. Rattan June 1882 Humboldt Humboldt Bay Comment
  UC162587  Mimulus floribundus Joseph P. Tracy 1911-7-6 3364 Humboldt along road between mouth of Willow Creek and Three Creeks (Koby's ranch); Northern Coast Ranges 762 Comment
  UC1196831  Mimulus guttatus Joseph P. Tracy 1937-5-31 15324 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS10800  Mimulus inodorus Joseph P. Tracy 1935-7-24 14198 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  UC535723  Mimulus inodorus Eleanor Armstrong 1934-8-18 1138 Humboldt Richardson Grove 121 Comment
  HSC20780  Mimulus moschatus J. P. Tracy 1935-7-23 14165 Humboldt Trinity Summit: lower end of Brett Hole 1585 Comment
  RSA447972  Mimulus moschatus Unspecified 1924-7-15 s.n. Humboldt Bull Creek. Comment
  RSA275293  Mimulus moschatus Thomas W. Nelson, Jane P. Nelson 1977-7-4 3606 Humboldt Along road north from Alder Springs. 1524 Comment
  JEPS13352  Mimulus nanus var. nanus W. K. Parks July, 1933 81423 Humboldt Buck Mt. Comment
  UC1196787  Mimulus nanus var. nanus Joseph P. Tracy 1933-7-16 12795 Humboldt Hyampon Trail South Fork Mountain 1676 Comment
  JEPS10599  Mimulus pilosus Joseph P. Tracy 1925-11-1 7300 Humboldt Shively 60 Comment
  UC668121  Minuartia douglasii Joseph P. Tracy 1935-6-23 13972 Humboldt French Camp Ridge 1066 Comment
  HSC56219  Mitella caulescens G. L. Clifton, Griswold 1979-8-2 12242 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC74644  Moehringia macrophylla M. A. Baker 1980-5-17 1223 Humboldt Near Le Perron Peak 792 Comment
  UC1103534  Moehringia macrophylla Joseph P. Tracy 1930-7-18 9074 Humboldt near McKay Camp South Fork Mountain 1676 Comment
  HSC99502  Monardella odoratissima subsp. pallida K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 162 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
  UC1239675  Monardella odoratissima subsp. pallida Joseph P. Tracy 1942-9-6 17310 Humboldt South Fork Mountain, near McKay Camp. 1676 Comment
  HSC14281  Monardella villosa Paul Shields Jul 1955 Humboldt 3 mi. S of Myers Flat Comment
  UC198611 Image available Monardella villosa subsp. villosa Joseph P. Tracy 1916-9-6 4757 Humboldt Northern Coast Ranges: Grasshopper Ridge, head of Canoe Creek. Comment
  RSA255779  Monotropa uniflora Gary D. Wallace 1973-7-11 1251 Humboldt Eastern part of Prairie C reek Redwoods St. Pk. 427 Comment
  CAS-BOT-BC444832  Montia fontana James Payne Smith, Jr. 1976-2-21 8507 Humboldt Tish Tang Campground Comment
  BLMAR621  Montia howellii Jennifer Anthony-Wheeler 2009-5-20 521 Humboldt Lacks Creek, On main westside road on vernally wet inboard ditch behind gate 853 Comment
  CAS-BOT-BC445151  Montia parvifolia I. L. Wiggins 1932-7-7 5879 Humboldt Near Samoa Comment
  UC7878  Montia parvifolia Harley P. Chandler May, 1901 1261 Humboldt North Coast Ranges, Redwood Belt Redwood Belt; North Coast Ranges, Redwood Belt 152 Comment
  HSC17672  Montia parvifolia C. E. Fellows 1957-4-27 128 Humboldt 1 mi. W of Honeydew Comment
  HSC77395  Montia parvifolia L. P. Janeway 1983-5-21 301 Humboldt At East Fork USFS campground, W edge of flat canyon bottom 473 Comment
  HSC63080  Morella californica David Wheeler 1979-4-30 89 Humboldt 910 Gwinn St., McKinleyville Comment
  CAS-BOT-BC260572  Muhlenbergia filiformis Joseph P. Tracy 1933-7-25 12833 Humboldt Grouse Mountain 1524 Comment
  UCD86797  Muhlenbergia mexicana Eleanor Armstrong 1934-1 1149 Humboldt Richardson Grove. Comment
  UC525573  Myosotis discolor Joseph P. Tracy 1925-5-10 6963 Humboldt near Hydesville; Northern Coast Ranges 91 Comment
  HSC103302  Myosotis latifolia Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-28 3016 Humboldt Above College Cove (north of Trinidad State Beach); along path to beach. 61 Comment
  HSC95678  Myosotis sylvatica Steven Lee 2004-4-13 18 Humboldt Arcata Community Forest, hillside along Jolly Giant Creek Comment
  SEINET5624090 Image available Myosotis versicolor Joseph P. Tracy 1942-1 17116 Humboldt Englewood Prairie Comment
  SEINET3155577  Myrica californica J. W. Johnson 1961-11-27 1431 Humboldt Arcata; along the trail on the Hunt Farm, Samoa Peninsula. Comment
  UCD87900  Nassella lepida A. H. Murphy 1951-5-18 s.n. Humboldt 2.5 mi. northwest of Petrolia on rocky road cut along county road. Petrolia to Ferndale. Comment
  HSC60107  Nasturtium officinale M. A. Baker 1977-6-6 375 Humboldt Hoopa Comment
  HSC76562  Navarretia divaricata var. divaricata Denis Kearns 1981-7-22 324 Humboldt Near Whiteys Peak. 1487 Comment
  UC52878  Navarretia tagetina Chesnut and Drew 1888-7-23 Humboldt Hy-Am-Pum Comment
  JEPS70522  Navarretia viscidula Joseph P. Tracy 1916-6-20 4732 Humboldt Alder Point Northern Coast Ranges 152 Comment
  HSC100497  Nemophila menziesii Carl C. Marshall Jul 1887 86 Humboldt In the hills everywhere. Comment
  CDA40359  Nemophila menziesii var. atomaria J. Breton and A. Livingston 2005-6-8 6 Humboldt Northwestern California; 1.7 mi. south of Highway 299 on Titlow Hill Rd. Comment
  HSC89473  Nemophila menziesii var. menziesii P. A. Daly 1986-3-12 94 Humboldt Trinidad Head, along trail 61 Comment
  HSC32882  Nemophila parviflora Thomas W. Nelson, James Nelson 1973-5-28 934 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC97499  Nemophila parviflora var. austiniae C. Witte 2007-5-21 50 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1419 Comment
  POM266040  Noccaea fendleri subsp. glauca Lincoln Constance, Reed C. Rollins 1942-5-11 2877 Humboldt Hoopa Valley, 5 miles south of Hoopa. 122 Comment
  HSC48063  Nuttallanthus texanus Thomas W. Nelson 1978-4-23 3885 Humboldt N of Samoa Comment
  HSC18701  Oemleria cerasiformis J. L. Baker 1965-3-13 13 Humboldt Humboldt Meridian, 4 mi. N of Arcata on N Bank Rd. Comment
  HSC18704  Oemleria cerasiformis D. E. Anderson 1962-2-25 1925 Humboldt 1 mi. W of Ferndale along Centerville Beach Rd. Comment
  UC1222314  Oemleria cerasiformis Joseph P. Tracy 1951-6-21 19514 Humboldt opposite Willow Creek; Trinity Valley Comment
  RSA246753  Oenanthe sarmentosa R. F. Thorne, P. Everett 1965-8-7 35212 Humboldt Samoa Peninsula: near sea level Comment
  HSC49088  Oenothera elata subsp. hookeri Patricia Shesgreen 1978-8-12 134 Humboldt 1/2 mi. E of Samoa Cookhouse on Vance Ave., Samoa. Comment
  UC1199306  Oreostemma alpigenum var. andersonii Joseph P. Tracy 1932-7-13 10516 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC55013  Orthilia secunda G. L. Clifton 1979-7-31 11395 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC1197580  Orthilia secunda Joseph P. Tracy 1934-8-29 13626 Humboldt South Fork Mountain near McKay Camp 1676 Comment
  CAS-BOT-BC6997  Orthocarpus castillejoides var. humboldtiensis Philip Alexander Munz 1925-6-20 9890 Humboldt Eureka 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
  UC1245385  Orthocarpus imbricatus Joseph T. Gregory 1935-7-23 701 Humboldt open places at Corral Prairie (Trinity Summit); , open places at Corral Prairie 1584 Comment
  UC1222796  Orthocarpus imbricatus Joseph P. Tracy 1951-6-26 19562 Humboldt halfway between Snow Camp and Twin Lakes; halfway between Snow Camp and Twin Lakes Comment
  UC1197133  Osmorhiza berteroi Joseph P. Tracy Jul 27 1908-Jul 30 1908 2738 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC65513  Osmorhiza occidentalis M. A. Baker 1980-6-8 1907 Humboldt Near Buck Flat. 1554 Comment
  UC642276  Osmorhiza occidentalis Joseph P. Tracy 1927-6-12 8157 Humboldt Horse Mountain; lower slopes 1219 Comment
  UCR275113  Oxalis articulata Charity A. Hartshorn 2016-5-14 38 Humboldt Arcata Community Forest 244 Comment
  HSC100585  Oxalis oregana Carl C. Marshall Mar 1886 151 Humboldt Everywhere. Comment
  HSC59664  Oxalis oregana George Kirn 1977-10-3 Humboldt Vicinity of Jolly Giant Creek, 1/4 mi. E of HSU campus 46 Comment
  POM353446  Oxalis oregana Hutchinson 1927-5-27 s.n. Humboldt [No location data on label] Comment
  UC56731  Oxalis oregana Harley P. Chandler May, 1901 1160 Humboldt North Coast Ranges 30 Comment
  UC196966  Panicum acuminatum var. acuminatum Joseph P. Tracy 1915-6-6 4645 Humboldt at Eureka Eureka; Northern Coast Region, at Eureka 0 Comment
  HSC10485  Panicum acuminatum var. fasciculatum D. E. Anderson 1963-9-29 2852 Humboldt Fish Lake. Comment
  OBI36624  Parapholis incurva David J. Keil 1983-7-2 17303 Humboldt Humboldt Bay salt marsh at Arcata Corp Yard Comment
  JEPS103920  Parentucellia viscosa T. I. and F. M. Chuang 1991-7-7 7865 Humboldt Ca 7 mi S of Orick. Comment
  HSC95379  Parentucellia viscosa Andrea Pickart 2002-8-7 195 Humboldt Arcata Bottoms, along Lanphere Rd. 20 Comment
  HSC10526  Paspalum distichum D. E. Anderson 1963-9-29 2846 Humboldt Fish Lake. Comment
  HSC60284  Pedicularis densiflora Richard Spjut 1979-3-25 5425 Humboldt Tish Tang Campground, 2 mi. E of Hoopa, above the river Comment
  SEINET200794 Image available Pellaea mucronata subsp. mucronata J. P. Tracy 1933-6-13 12561 Humboldt Near summit on rd W from Hoopa to Bair's Hoopa Mt 1067 Comment
  CHSC33041  Penstemon anguineus Thomas Nelson; Jane Nelson 1976-7-1 2907 Humboldt The Lassics. Growing along east side of Red Lassic; beside rd. 1S07. 1676 Comment
  UC577417  Penstemon anguineus Joseph P. Tracy 1932-7-12 10454 Humboldt near Corral Prairie (Fir woods); Trinity Summit, Corral Prairie 1584 Comment
  JEPS26253  Penstemon anguineus Joseph P. Tracy 1940-7-7 16671 Humboldt Grouse Mt. 1524 Comment
  UC1011933  Penstemon anguineus F. W. Pennell and J. P. Tracy 1940-7-7 26092 Humboldt w Salyer (Grouse Mountain); w of Salyer, Grouse Mountain 1371 Comment
  HSC32305  Penstemon azureus D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5649 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  UC673099  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1940-5-5 16543 Humboldt Garberville Garberville (on river bar) 152 Comment
  HSC74399  Penstemon laetus subsp. sagittatus Gail Newton 1980-6-28 731 Humboldt Near Mad River Butte. 1536 Comment
  HSC56231  Penstemon newberryi subsp. berryi Walter Overton 1979-8-1 12307 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1402 Comment
  UC168978  Penstemon newberryi var. berryi Joseph Burtt Davy and Walter C. Blasdale Jun 21-23 1899 5860 Humboldt Trinity Summit North Coast Ranges Comment
  JEPS11498  Penstemon procerus var. brachyanthus Joseph P. Tracy 1932-7-12 10480 Humboldt head of Brett Hole Trinity Summit, head of Brett Hole 1828 Comment
  NY130492  Penstemon rattanii V. Rattan 06 1879 58 Humboldt 792.5 Comment
  JEPS6895  Penstemon rattanii var. rattanii Joseph P. Tracy 1906-6-10 2480 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC198598  Perideridia howellii Joseph P. Tracy 1917-9-1 4832 Humboldt Murphy Meadow Northern Coast Ranges, Bald Mountain 1066 Comment
  SEINET200761  Perideridia lemmonii Joseph Tracy 1920-11-14 5411 Humboldt Dow's Prairie 61 Comment
  HSC98872  Perideridia oregana Cara Witte 2007-7-5 421 Humboldt National Forest 1. 1.5 miles southeast of Forest Service Road 5N09. 1578 Comment
  HSC56308  Perideridia parishii subsp. latifolia Overton, Butler 1979-8-2 12627 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1197118  Perideridia parishii subsp. latifolia Joseph P. Tracy 1932-7-18 10707 Humboldt Brett Hole Trinity Summit (head) 1828 Comment
  UC642270  Perideridia parishii subsp. latifolia Joseph P. Tracy 1932-7-14 10543 Humboldt Corral Meadow Trinity Summit 1584 Comment
  HSC12557  Persicaria maculosa D. La Conte 1970-8-11 15 Humboldt Along side of creek intersecting Campton Rd. Comment
  HSC17528  Persicaria maculosa W. L. Jepson 1921-8-7 9334 Humboldt Stone Lagoon Comment
  HSC65092  Petrorhagia dubia J. P. Smith, J. O. Sawyer 1976-5-2 8625 Humboldt 3.7 mi. N of junction with Hwy. 299 on Hwy. 96 61 Comment
  HSC76574  Phacelia bolanderi Denis Kearns 1981-7-8 142 Humboldt Near Bluff Creek 622 Comment
  JEPS81041  Phacelia bolanderi J. P. Smith and Steve Selva 1970-6-14 3821 a Humboldt along CA 96 Whitmore Creek 152 Comment
  UC56715  Phacelia bolanderi Harley P. Chandler May 1901 1088 Humboldt Idlewild North Coast Ranges 91 Comment
  HSC100499  Phacelia circinata Carl C. Marshall Jun 1886 288 Humboldt Coyote Camp. Comment
  UC673228  Phacelia heterophylla subsp. virgata Lincoln Constance and Reed C. Rollins 1942-5-11 2876 Humboldt 5 mi s Hoopa; North Coast Ranges, Hoopa Valley 121 Comment
  UC673179  Phacelia nemoralis subsp. oregonensis Lincoln Constance and Reed C. Rollins 1942-5-11 2782 Humboldt 6 mi s Hoopa; North Coast Ranges, Hoopa Valley 121 Comment
  HSC24261  Phalaris californica D. E. Anderson 1970-6-14 5125 Humboldt Near Maple Creek School, about 2 mi. SE of junction of Maple Creek Rd. and Butler Valley Rd. Comment
  SEINET200858  Philadelphus lewisii Joseph P. Tracy 1911-7-5 3319 Humboldt Along Willow Creek, near its mouth. 183 Comment
  RSA0046936  Philadelphus lewisii Lyman Benson 1928-7-10 397 Humboldt Hills by Humboldt Bay, Fortuna. Mouth of Eel River. 30 Comment
  HSC58664  Phleum alpinum G. L. Clifton, Griswold 1979-8-1 12026 Humboldt Near High Spring, close to the town of Hoopa. 1798 Comment
  HSC74182  Phleum alpinum M. A. Baker 1980-7-22 3105 Humboldt Near Grogan Hole. 1676 Comment
  UC184008  Phleum alpinum Joseph P. Tracy 1912-7-31 3908 Humboldt on nw slope Buck Mountain (Burr Valley); Northern Coast Ranges, nw slope of Buck Mountain 1066 Comment
  UCD89321  Phleum alpinum A. H. Murphy 1951-6-25 66 Humboldt Snow Camp Meadow, 8 miles e.n.e. Kneeland. 1402 Comment
  HSC58545  Phleum pratense Overton, Butler 1979-7-23 9548 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  UC1178964  Phlox adsurgens Joseph P. Tracy 1932-7-13 10488 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  UC1347189  Phlox adsurgens Alice Eastwood and John Thomas Howell 1937-6-24 4869 Humboldt 5 mi e Berry; Summit Comment
  HSC102076  Phlox diffusa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 978 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC48839  Phlox diffusa Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 31 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  UC1198558  Phlox gracilis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8938 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC52806  Phlox gracilis J. Burtt Davy Jun 1899 5675 Humboldt Hoopa Mt. Northern Coast Ranges Comment
  POM210091  Phyllospadix torreyi H. E. Parks 1933-11-12 s.n. Humboldt Spruce Cove, Trinidad. Comment
  HSC45890  Picea sitchensis J. P. Smith 1971-10-6 4969 Humboldt End of Murray Rd. in McKinleyville, Bulk Collection 155 Comment
  JEPS46733  Picea sitchensis Goddard Humboldt Comment
  RSA85509  Picea sitchensis G. R. Campbell 1954-3-24 19024 Humboldt 23.4 miles N of Petrolia on Old Coast Road toward Ferndale. Comment
  SD41319  Picea sitchensis Edith A. Purer 1932-7-26 4127 Humboldt Near Samoa Comment
  SEINET5334460  Picea sitchensis W. D. Billings 1940-6-28 1355 Humboldt 1/4 mile north of Trinidad Head Comment
  UCR48598  Picris echioides R. D. Goeden, Don W. Ricker 1987-9-2 870902- 12 Humboldt Loleta, along Cannibal Road 8 Comment
  MACF017417  Pinus contorta Trudy R. Ericson 1974-8-5 198 Humboldt Hwy 255 between Eureka and Arcata, near the shore Comment
  SD41323  Pinus contorta Edith A. Purer 1932-7-27 4132 Humboldt Samoa, near Arcata Comment
  CAS-BOT-BC73199  Pinus jeffreyi Doris K. Kildale 1926-9-5 2648 Humboldt Lassen's Peaks. Signal Peak. 1791 Comment
  HSC54535  Pinus jeffreyi Overton, Butler 1979-7-23 9485 Humboldt Near Horse Mtn. Creek 1326 Comment
  HSC74337  Pinus lambertiana M. A. Baker 1980-5-18 1280 Humboldt Near Black Mtn. 1006 Comment
  UC502909  Pinus lambertiana Joseph P. Tracy 8961 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC1196426  Piperia transversa Edith and Ethel Tracy 1900-7-31 909 Humboldt opposite Eureka; Samoa, Ocean Beach Comment
  HSC99639  Pityopus californicus T. Jimerson, J. Pageau 1979-7-31 698 Humboldt Near Whiting Ridge. Close to the town of Hyampom, CA. 1204 Comment
  UC552841  Plagiobothrys bracteatus Joseph P. Tracy 1935-5-30 13916 Humboldt Willow Creek Trinity River Valley (bed of dried-up pond) 152 Comment
  RSA517214  Plagiobothrys nothofulvus Barbara Ertter, Tom Delendick 1987-5-16 6929 Humboldt Vista Point just W of Berry Summit on Highway 299, ca. 15 air miles E of Arcata. 915 Comment
  POM126363  Plagiobothrys reticulatus Joseph P. Tracy 1912-6-9 s.n. Humboldt Alton. 30 Comment
  UC24546  Plagiobothrys reticulatus Harley P. Chandler May, 1901 1172 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  JEPS60999  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1936-6-28 15009 Humboldt near Murphy Meadows; Bald Mt. 914 Comment
  OBI20599  Plagiobothrys scouleri Joseph P. Tracy 1949-6-25 18353 Humboldt Trinity summit, meadow at Box Camp Comment
  UC1222205  Plagiobothrys scouleri Joseph P. Tracy 1946-5-30 17549 Humboldt 5 mi e Carlotta (Riverside Park on Van Duzen River); Van Duzen River 30 Comment
  UC1222194  Plagiobothrys trachycarpus Joseph P. Tracy 1942-5-16 17355 Humboldt 1 mi ne Garberville 304 Comment
  BLMAR605  Plantago Jennifer Wheeler 2011-4-1 605 Humboldt Mattole Beach, Located below Smith gulch 6 Comment
  HSC37922  Plantago erecta Peter Sorenson 1976-6-14 Humboldt N Spit Comment
  UC1196135  Plantago lanceolata Joseph P. Tracy 1901-7-31 1233 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CDA6622  Plantago lanceolata T. C. Fuller 1962-8-6 9359 Humboldt Highway 299 to Blue Lake, 2.6 miles east of Bald Mtn. Summit Road. 1 mile west of Green Point School. 0 Comment
  HSC79455  Plantago lanceolata Kenneth Clark 1980-4-18 603 Humboldt Above Dead Man's Gulch near parking access 137 Comment
  HSC16832  Plantago subnuda Norman H. Moe 1962-5-17 Humboldt Lanphere's Place, next to Mad River Slough Comment
  UC154020  Plantago subnuda J. P. Tracy 1903-8-9 1937 Humboldt immediate vicinity Eureka 0 Comment
  UC429188  Platanthera Franklin P. Nutting Humboldt Bridge Creek, n California Bridge Creek Comment
  HSC57692  Platanthera dilatata var. leucostachys G. L. Clifton, Griswold 1979-7-25 10917 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC98718  Platanthera dilatata var. leucostachys Cara Witte 2008-7-1 791 Humboldt Near Grouse Mountain spring. Along Forest Service Road 5N04. 1/4 mile east of intersection with 4N70. 1583 Comment
  HSC28091  Platanthera sparsiflora J. D. Ackerman, A. Montalvo 1973-7-4 92 Humboldt E boundary of Hoopa Indian Reservation, Big Hill Rd. Comment
  CAS-BOT-BC91645  Platystemon californicus Bolimannsou 1907-5-15 s.n. Humboldt Samoa. Comment
  HSC1976  Platystemon californicus D. E. Anderson, N. Dennis 1965-6-8 107 Humboldt Samoa Peninsula along the W side of Humboldt Bay Comment
  UC229824  Platystemon californicus Joseph P. Tracy 1922-5-29 6071 Humboldt head of South Yager Creek; Northern Coast Ranges, head of South Yager Creek 762 Comment
  JEPS4808  Plectritis brachystemon Joseph P. Tracy 1930-6-8 8734 Humboldt Kneeland Prairie 762 Comment
  UC168964  Plectritis brachystemon Joseph P. Tracy 1909-7-31 3034 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC602508  Plectritis brachystemon Joseph P. Tracy 1933-5-20 12250 Humboldt Northern Coast Ranges, Mattole Valley Mattole Valley; Northern Coast Ranges, Mattole Valley 60 Comment
  UC1103799  Pleuropogon refractus Joseph P. Tracy 1936-8-7 15093 Humboldt head of Little Hors-Linto Creek (Trinity Summit); , Little Hors-Linto Creek 1371 Comment
  HSC10641  Poa bolanderi J. P. Tracy 1930-7-16 8902 Humboldt Near McKay Camp. 1677 Comment
  CAS-BOT-BC255119  Poa confinis Joseph P. Tracy 1927-4-24 7947 Humboldt Eureka, near bay shore 9 Comment
  HSC10676  Poa confinis J. W. Johnson 1962-5-10 1340 Humboldt Arcata, Christenson Farm, Samoa Peninsula. Comment
  SACT001836  Poa confinis Lyle Bibb 1963-5-11 Humboldt Coastal strand amound sandy beach east or Arcata. Sand spit. Comment
  HSC10701  Poa douglasii T. O. Preston 1963-5-6 42 Humboldt Sand dunes Comment
  JEPS71279  Poa douglasii unknown 1925-7-29 118 Humboldt Samoa Comment
  UC180506  Poa howellii Joseph P. Tracy 1913-6-20 4243 Humboldt lower foothills of Buck Mt (nw slope); Northern Coast Ranges 762 Comment
  RSA95498  Poa kelloggii L. S. Rose 1954-4-25 54013 Humboldt Bull Creek Flat 46 Comment
  HSC10692  Poa macrantha J. W. Johnson 1961-9-10 1111 Humboldt Arcata, Christenson Farm, Samoa Peninsula. Comment
  HSC77908  Poa macrantha L. P. Janeway, Paul Wilson 1984-5-7 766 Humboldt N Spit of Humboldt Bay, on BLM lands near the Coast Guard Station 3 Comment
  RSA92307  Poa macrantha Joseph P. Tracy 1933-5-20 12224 Humboldt Cape Mendocino, near ocean shore, south point of the Cape. 3 Comment
  UC184172  Poa pratensis subsp. pratensis Joseph P. Tracy 1905-6-4 2186 Humboldt Eureka; Northern Coast Region 0 Comment
  UC60226  Poa pratensis subsp. pratensis Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5432 Humboldt near Hubbards Comment
  UCD90446  Poa secunda R. Tofsrud 1948-9-1 s.n. Humboldt Road junction near summit of Horse Mt. 1463 Comment
  HSC70237  Poa secunda subsp. secunda M. A. Baker 1980-6-8 1901 Humboldt Near Buck Flat. 1554 Comment
  UC180500  Poa secunda subsp. secunda Joseph P. Tracy 1913-6-14 4120 Humboldt opposite Buck Mt (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC187225  Poa unilateralis Joseph P. Tracy 1910-4-24 3124 Humboldt Ocean Beach; Northern Coast Region, Humboldt Bay Comment
  RSA20841  Polemonium carneum C. B. Wolf 1937-6-17 8881 Humboldt Big Lagoon, south side at west of Redwood Highway 6 Comment
  RSA774713  Polygala californica Thekla Mohr 1918-07 3336 Humboldt Eel River. Comment
  SEINET1004856  Polygala californica Joseph P. Tracy 1912-1 3667 Humboldt Alton 30 Comment
  UC1198993  Polygala californica Joseph P. Tracy 1913-7-20 4377 Humboldt on Redwood Creek near Berry's; Northern Coast Ranges, Redwood Creek 304 Comment
  UC1052454  Polygala cornuta var. cornuta J. Tracy and H. E. Parks Humboldt Hors Linto Road Trinity River 609 Comment
  UC35075  Polygala cornuta var. cornuta Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  UC1198084  Polygonum amphibium var. stipulaceum Joseph P. Tracy 1921-8-7 5864 Humboldt Stone Lagoon Northern Coast Region 3 Comment
  JEPS79956  Polygonum bolanderi Joseph P. Tracy 1921-8-21 5944 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC146191  Polygonum californicum Joseph P. Tracy 1908-6 2922 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  SEINET3405167 Image available Polygonum californicum Joseph P. Tracy 1929-8-18 8654 Humboldt Along Van Duzen River, Opposite Buck Mountain Comment
  UC1116239  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1947-8-24 17887 B Humboldt near Box Camp; Trinity Summit 1524 Comment
  JEPS50635  Polygonum lapathifolium W. L. Jepson 1921-8-7 9334 Humboldt Stone Lagoon Comment
  UC672947  Polygonum minimum Joseph P. Tracy 1932-7-18 10702 Humboldt Brett Hole Trinity Summit (head) 1828 Comment
  BLMAR616  Polygonum paronychia Jennifer Wheeler 2011-5-20 616 Humboldt King range, Below Strawberry Rock along Mattole dunes 7 Comment
  CDA22830  Polygonum paronychia J. Riddell 2002-4-19 35 Humboldt Mad River Beach dunes. Comment
  HSC38939  Polygonum paronychia Linda M. Barker 1976-5-13 1487 Humboldt 3 mi. W of Arcata. Comment
  HSC43417  Polygonum paronychia R. Sutherland 1978-2-18 1 .18278 Humboldt Mouth of Mattole River 8 Comment
  HSC64430  Polygonum paronychia J. P. Smith 1971-10-6 4957 Humboldt End of Murray Rd. in McKinleyville. Comment
  UC146160  Polygonum parryi Joseph P. Tracy 1908-6 2722 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 304 Comment
  HSC97963  Polygonum polygaloides subsp. kelloggii Cara Witte 2007-6-13 264 Humboldt Along Forest Service Road 5N04. Near spring by Grouse Mountain. 1583 Comment
  JEPS51274  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1930-7-17 9010 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC672951  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1930-7-17 9010 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC1052470  Polygonum sachalinense H. E. and S. T. Parks July 1952 24448 Humboldt Hwy 10 s Elk River Bridge Comment
  HSC98570  Polygonum spergulariiforme Cara Witte 2007-9-14 647 Humboldt Forest Service Road 4N32. 4/10 mile north of intersection with Forest Service Road 4N32B. 1413 Comment
  POM118346  Polypodium californicum Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  CHSC37525  Polypodium glycyrrhiza M. S. Taylor 1982-10-24 5184 Humboldt Samoa, under bridge, ca. 1 mi nw of Eureka. 0 Comment
  CHSC53230  Polypodium glycyrrhiza L. P. Janeway 1984-12-5 1194 Humboldt On the North Spit of Humboldt Bay; on the west side of Samoa Rd near the boat ramp. 4 Comment
  UC71485  Polypodium glycyrrhiza Mrs. M. H. Manning 1901-1 Humboldt Hupa Valley Comment
  HSC1111  Polypodium glycyrrhiza Gene S. Van Horn 1962-1-6 7 Humboldt 9 mi. E of Yager Cr. bridge in Carlotta, on Hwy. 36 between highway and Van Duzen river 152 Comment
  UC667946  Polypodium scouleri Joseph P. Tracy 1936-9-6 15183 Humboldt Big Lagoon Comment
  UCD136910  Polypodium scouleri Linda M. Barker 1976-3-11 1327 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  UC207735  Polypogon interruptus Joseph P. Tracy 1916-9-5 4765 Humboldt 4 mi above mouth South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  HSC10833  Polypogon maritimus J. P. Tracy 1933-7-20 12811 Humboldt Along Mad River, near Blue Lake. 15 Comment
  HSC76296  Polystichum imbricans Michael Ericksen 1981-8-24 1094 Humboldt Near Pilot Creek 951 Comment
  CAS-BOT-BC76660  Polystichum munitum Henry M. Pollard 1946-8-11 s.n. Humboldt Perch Creek, Orleans region Comment
  HSC49919  Polystichum munitum Maralyn O'Meara 1973-2-9 122 Humboldt McKinleyville, N side of Mad River along N Bank Rd., 0.5 mi. E of Hwy. 101 Comment
  HSC54569  Polystichum munitum Overton, Butler 1979-7-24 9597 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  UC1440062  Polystichum munitum Danin & H. G. Baker 1960-8-14 613 Humboldt ca. 1 mi toward Garberville from Myers Flat (Nelson Grove); Humboldt Redwoods State Park Comment
  CAS-BOT-BC453767  Potamogeton natans Larry DeBuhr; Gary Wallace 1973-5-19 1117 Humboldt Prairie Creek Redwood State Park; at Gold Bluff Beach Comment
  SEINET8577021 Image available Potamogeton pusillus S. K. Harris 1938-1 808 Humboldt Eel River,near Fernbridge Comment
  HSC90260  Potentilla anserina subsp. pacifica Jean Hanson 1980-5-24 71 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka. W end of island Comment
  HSC98969  Potentilla glandulosa subsp. reflexa Cara Witte 2007-6-27 364 Humboldt Forest Service Road 5N04. Near Grouse Mountain. Approximately 1/4 mile east of spring. 1583 Comment
  HSC15473  Prosartes smithii D. E. Anderson 1962-3-31 1959 Humboldt Old Hwy. 101, E side of Freshwater Lagoon Comment
  HSC15484  Prosartes smithii W. R. Brigham 1962-5-20 16 Humboldt Side of Old Hwy. 101, N of Big Lagoon rd. Comment
  HSC37366  Prosartes smithii Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 499 Humboldt Along Lost Man Creek. 38 Comment
  CAS-BOT-BC517503  Prosartes smithii H. C. Cantelow 1936-5-17 s.n. Humboldt 3 miles east of Orick Comment
  CAS-BOT-BC517504  Prosartes smithii H. C. Cantelow 1936-5-18 1342 Humboldt 3 miles E of Orick Comment
  UCD125357  Prunella vulgaris Joseph P. Tracy 1942-10-18 17404 Humboldt Jacoby Creek, near the quarry. 152 Comment
  BLMAR261  Prunella vulgaris subsp. lanceolata Jennifer Anthony-Wheeler 1998-7-14 261 Humboldt King range, strawberry rock grazing allotment 280 Comment
  HSC23488  Prunella vulgaris subsp. lanceolata R. A. Vanbianchi 1971-9-24 87 Humboldt Comment
  HSC99544  Prunella vulgaris var. lanceolata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 209 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA22550  Prunella vulgaris var. lanceolata H. E. Parks, S. T. Parks 1937-07 24052 Humboldt Spruce Cove, Trinidad. 61 Comment
  UC1196727  Prunella vulgaris var. lanceolata J. P. Tracy 1911-8-27 3533 Humboldt immediate vicinity Eureka 0 Comment
  UC1288490  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-12-28 687 Humboldt n Weott (Avenue of the Giants, Humboldt Redwoods State Park); Humboldt Redwoods State Park, Avenue of the Giants Comment
  UC1196729  Prunella vulgaris var. vulgaris Joseph P. Tracy 1925-11-8 7307 Humboldt near Blue Lake (along Mad River); , near Blue Lake 15 Comment
  CAS-BOT-BC159984  Prunus emarginata Doris Kildale Gillespie 1931-6-7 10593 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  HSC38513  Prunus emarginata D. E. Anderson, J. P. Smith 1971-6-18 1087 Humboldt Horse Mtn. Comment
  HSC48746  Prunus emarginata Brad Klipfel 1973-6-10 83 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1541680  Prunus virginiana var. demissa W. K. Parks July 1933 Humboldt South Fork Mountain Comment
  JEPS20480  Pseudognaphalium californicum Joseph P. Tracy 1937-7-11 15415 Humboldt vicinity of Garberville 121 Comment
  HSC5708  Pseudognaphalium thermale J. P. Tracy 1938-8-14 16111 Humboldt Trinity River Valley at Willow Creek 152 Comment
  UC1222889  Pseudognaphalium thermale Joseph P. Tracy 1950-9-22 19376 Humboldt below 8 mi Orleans (near Slate Creek); Klamath River 121 Comment
  CAS-BOT-BC80116  Pseudotsuga menziesii Doris K. Kildale 1927-12-1 4193 Humboldt Klamath River at Orleans Comment
  HSC44052  Pseudotsuga menziesii var. menziesii Thomas W. Nelson, Jane P. Nelson 1977-4-23 3345 Humboldt Tributary to Blanket Creek 1463 Comment
  HSC76290  Pseudotsuga menziesii var. menziesii Teresa Prendusi 1981-7-23 358 Humboldt Near Black Mountain. 890 Comment
  JEPS48426  Pseudotsuga menziesii var. menziesii W. L. Jepson 1936-8-7 17858 Humboldt Butte Creek (upper) Bear Buttes, Butte Creek Comment
  NY63912  Pseudotsuga menziesii var. menziesii J. P. Tracy 1932-3-19 9789 Humboldt Blue Slide, on Van Duzen River Comment
  UC165834  Psilocarphus tenellus J. P. Tracy 1909-5-23 2971 Humboldt immediate vicinity Eureka 0 Comment
  HSC1163  Pteridium aquilinum var. pubescens R. I. Bonn 1965-5-9 41 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  UCSC000066  Puccinellia nutkaensis H. S. Yates 1936-6-16 5669 Humboldt 1 mile N.E. of Samoa - Eureka 0 Comment
  SEINET200714  Pyrola americana J. P. Tracy 1901-6-30 1191 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC41263  Pyrola aphylla Brad Klipfel 1974-7-23 456 Humboldt Horse Mtn. Comment
  CAS-BOT-BC460603  Pyrola aphylla Doris K. Kildale 1926-6-17 2166 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC460604  Pyrola aphylla Doris K. Kildale 1927-7-3 3632 Humboldt Willow Creek Flat 152 Comment
  JEPS66559  Pyrola asarifolia Joseph P. Tracy 1936-6-28 15016 Humboldt Bald Mountain at Lake Prairie 1066 Comment
  UC153970  Pyrola asarifolia J. P. Tracy 1901-6-30 1191 Humboldt Immediate Vicinity of Eureka 0 Comment
  CAS-BOT-BC466036  Pyrola picta Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UC1196363  Quercus X morehus Joseph P. Tracy 1916-6-19 4723 Humboldt North Fork of Dobbyn Creek Northern Coast Ranges 182 Comment
  CAS-BOT-BC62673  Quercus chrysolepis Doris K. Kildale 1926-3-21 1689 Humboldt McDowell Butte, Kneeland Prairie 914 Comment
  UC203862  Quercus chrysolepis Joseph P. Tracy 1918-9-29 5109 Humboldt 4 mi above mouth of South Fork Eel River; North Coast Ranges, South Fork Eel River 60 Comment
  UC303002  Quercus chrysolepis Joseph P. Tracy 1926-6-6 7571 Humboldt on road w Hoopa Valley; Northern Coast Ranges, Hoopa Mountain 914 Comment
  CAS-BOT-BC94316  Quercus garryana Doris K. Kildale 1926-9-7 2630 Humboldt Lassech's Peaks - head of Red Lassechs Creek 1661 Comment
  RSA622135  Quercus garryana var. garryana J. M. Tucker 1948-9-3 1849 Humboldt Southwest side of Horse Mountain, ca. 2 mi. south of Berry's Summit. 1067 Comment
  CAS-BOT-BC105163  Quercus kelloggii Doris K. Kildale 1927-4-17 3093 Humboldt Briceland Bridge, 1/2 mile W of Gaberville 114 Comment
  CAS-BOT-BC105164  Quercus kelloggii Doris K. Kildale 1927-5-1 3120 Humboldt Blochsburg 518 Comment
  OBI36667  Quercus kelloggii David J. Keil 1983-7-2 17342 Humboldt 2.8 mi S of SR 299 along titlow HIll rd, SW of Willow Creek Comment
  UCSB6966  Quercus kelloggii Muller, Cornelius 1954-6-21 Humboldt Olsen Creek, 2 mi. ESE of Mad River, on road to Forest Glen Comment
  HSC72682  Quercus sadleriana J. P. Smith 1977-7-3 9264 Humboldt Onion Lake Comment
  UCD47238  Quercus sadleriana Gilbert Jerome Muth 1972-8-15 1845 Humboldt Near Big Hill Road, Humboldt County, California. Hoopa Quad. 167 mm from bottom margin, 258 mm from left margin. SLID No. 6941, Herb Acc No. 00011257. 1431 Comment
  UCD47467  Quercus vacciniifolia Joseph P. Tracy 1935-7-28 14336 Humboldt Trinity Summit, Head of Brett Hole. 1828 Comment
  HSC36093  Ranunculus aquatilis George L. Williams 1962-4-20 Humboldt Beside Hwy. 101 near Mad River Comment
  JEPS5915  Ranunculus aquatilis var. hispidulus Joseph P. Tracy 1937-5-30 15311 Humboldt in shallow pond near Bosworth's; Larrabee Creek 365 Comment
  UC162922  Ranunculus californicus Joseph P. Tracy 1911-5-27 3191 Humboldt Humboldt Bay Northern Coast Region (sand dunes of beach) Comment
  JEPS5880  Ranunculus flammula Joseph P. Tracy 1937-5-30 15312 Humboldt near Bosworth's; Larrabee Creek 365 Comment
  RSA273369  Ranunculus flammula J. O. Sawyer 1977-4-25 3043 Humboldt Along N side of Buttermilk lane Sunnybrae. Across the street from 1425 Buttermilk Lane Comment
  HSC18212  Ranunculus flammula var. ovalis R. D. Modafferi 1965-5-13 71 Humboldt 2.3 mi. N of Trinidad on Trinity St. 305 Comment
  RSA183644  Ranunculus hebecarpus D. E. Anderson 1965-5-8 3628 Humboldt 0.6 miles west of bridge over North Fork of Mad River, along Highway 299 Comment
  HSC82522  Ranunculus occidentalis Thomas W. Nelson 1977-6-15 3441 Humboldt Along old road to Horse Mountain ski area. 1372 Comment
  UC1196222  Ranunculus occidentalis Joseph P. Tracy 1918-5-1 4912 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC102107  Ranunculus occidentalis var. occidentalis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1010 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC76583  Ranunculus occidentalis var. occidentalis Denis Kearns 1981-7-23 408 Humboldt Near Whiteys Peak. 1524 Comment
  UC1196256  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1912-6-2 3641 Humboldt Eureka Northern Coast Region 0 Comment
  UC503047  Ranunculus parviflorus Joseph P. Tracy 1927-5-21 8067 Humboldt Carlotta Northern Coast Ranges (roadside) 60 Comment
  UC838004  Ranunculus repens Eliz. Parsons Hawver Jun 1915 Humboldt Carlotta Comment
  HSC36258  Ranunculus repens var. repens John Rehling 1974-8-19 18 Humboldt Comment
  HSC39793  Raphanus sativus Peter Sorensen 1976-6-8 Humboldt N Spit Comment
  HSC34802  Raphanus sativus Scott M. Kruse 1975-4-9 3 Humboldt Old Arcata Rd. and Chester Way, Arcata 3 Comment
  HSC6888  Raphanus sativus W. F. Nickel 1965-4-3 Humboldt 1 mi. N of Orick on Hwy. 101 Comment
  UC1197986  Rhamnus californica Joseph P. Tracy 1918-9-29 5111 Humboldt Myer's Ranch Northern Coast Ranges, South Fork Eel River 60 Comment
  UCR3519  Rhamnus purshiana David Whistler, H. M. Whistler 1964-8-1 640801- 4 Humboldt Coast Range, US Hwy 299, 6 mi east of Blue Lake Comment
  RSA355693  Rhamnus purshiana Walter Wisura, Dave Kelly 1986-7-30 4134 Humboldt N of Crannel, on Lousiana Pacific Lumber Co. property, ca. 6 mi beyond the gate, beyond the nursery area, at edges of opening in Redwood forest. Comment
  UC615053  Rhamnus purshiana Beryl O. Schreiber 1934-6-5 1141 Humboldt Gray's Resort Redwood Creek Comment
  UC1121090  Rhododendron macrophyllum A. E. Wieslander 1931-5-17 195 Humboldt Orick-Orleans Road Comment
  UC1733675  Rhododendron occidentale Frank Gould, Kay H. Beach 1940-5-5 1041 Humboldt along north coast, north of Eureka. Comment
  UC562737  Rhododendron occidentale Joseph P. Tracy 1929-7-4 8609 Humboldt French Camp Ridge 1066 Comment
  HSC7890  Rhododendron occidentale var. paludosum T. M. Mingo May 1965 Humboldt E of parking lot at College Cove, and along road E of College Cove Comment
  UC203883  Ribes bracteosum Joseph P. Tracy 1918-5-28 4939 Humboldt High Prairie Creek Northern Coast Ranges 914 Comment
  SJSU10506  Ribes divaricatum K. K. Lind 1978-2-14 Humboldt Boise Cr Campground, Hwy 299 near community of Willow Cr, Six Rivers National Forest Comment
  UC902061  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1943-3-21 17412 Humboldt Alton 30 Comment
  HSC103223  Ribes divaricatum var. pubiflorum Jade Paget-Seekins 2010-3-20 7 Humboldt On the Mad River. In the park next to the water treatment plant. 13 Comment
  HSC56148  Ribes lacustre G. L. Clifton, Griswold 1979-8-1 11990 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  JEPS49357  Ribes lacustre W. L. Jepson 1902-7-15 2030 Humboldt Mud Spring to Trinity Summit 1524 Comment
  HSC97283  Ribes laxiflorum M. Mesler 2007-3-23 745 Humboldt Near Trinidad, trail from Mill Creek to Elk Head. 61 Comment
  UC1198924  Ribes lobbii Joseph P. Tracy 1942-6-23 17249 Humboldt near Box Camp; Trinity Summit 1584 Comment
  SEINET3119071 Image available Ribes marshallii Unknown 1932-7-15 s.n. Humboldt Trinity Summit, Ridges East of Corral Prairie 1829 Comment
  CAS-BOT-BC206039  Ribes menziesii Joseph P. Tracy 1935-3-3 13713 Humboldt Dow's Prairie 60 Comment
  HSC20315  Ribes menziesii D. E. Anderson 1962-3-17 1940 Humboldt 1.0 mi. SE of Korbel along rd. to Maple Creek Comment
  UC154122  Ribes menziesii J. P. Tracy 1904-7-31 2131 Humboldt immediate vicinity Eureka 0 Comment
  UC552240  Ribes menziesii Joseph P. Tracy 1935-3-3 13713 Humboldt Dow's Prairie 60 Comment
  HSC31647  Ribes roezlii var. cruentum Timothy B. Devine 1974-5-4 314 Humboldt Junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  UC1222368  Ribes sanguineum Joseph P. Tracy 1950-5-6 18642 Humboldt near head Willow Creek Canyon (along Trinity Highway) Comment
  CHSC68499  Ribes sanguineum var. glutinosum Vernon H. Oswald 1997-4-10 8323 Humboldt Elk Head, north end of Trinidad State Beach. 30 Comment
  UC902090  Ribes sanguineum var. glutinosum Joseph P. Tracy 1948-2-22 17951 Humboldt Table Bluff 91 Comment
  UC463025  Ribes victoris E. B. Copeland 1931-8-18 Humboldt below Densmore; Van Duzen River Comment
  CAS-BOT-BC173991  Ribes viscosissimum Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC76261  Ribes viscosissimum Teresa Prendusi 1981-7-21 276 Humboldt Near Whiteys Peak 1646 Comment
  HSC12697  Rorippa curvisiliqua Jana Kattenhorn 1970-10-28 146 Humboldt Mad River at the mouth of Lindsey Creek, N Bank Rd. off Hwy. 299 Comment
  HSC6899  Rorippa curvisiliqua D. E. Anderson 1961-9-30 1844 Humboldt Divide Lake Comment
  UC14402  Rorippa curvisiliqua Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  HSC44065  Rorippa curvisiliqua Thomas W. Nelson, Jane P. Nelson 1977-8-6 3701 Humboldt Above Alder Spring 1585 Comment
  UC205457  Rorippa nasturtium-aquaticum Joseph P. Tracy 1919-5-31 5169 Humboldt along Willow Creek (tributary of Trinity River) near its mouth Northern Coast Ranges, along Willow Creek 152 Comment
  UC275275  Rorippa nasturtium-aquaticum Joseph P. Tracy with H. E. Parks 1923-5-30 6246 Humboldt in small streamlet mouth Little River; Northern Coast Ranges, mouth Little River 3 Comment
  UC1222308  Rosa Joseph P. Tracy 1950-7-6 19028 Humboldt on the Albee Rd 3 mi s Burr. Valley (along stream) 1066 Comment
  UC902157  Rosa Joseph P. Tracy 1947-6-5 17814 Humboldt near Box Camp; Trinity Summit 1524 Comment
  CAS-BOT-BC147436  Rosa californica L. R. Abrams 1918-6-16 7161 Humboldt Willow Creek Comment
  CAS-BOT-BC146489  Rosa gymnocarpa Doris Kildale Gillespie 1931-6-7 10623 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  CAS-BOT-BC146490  Rosa gymnocarpa Carl B. Wolf 1927-8-30 1232 Humboldt 2 mi. so. of Petrolia on Matole River near point where road crosses river Comment
  HSC44122  Rosa nutkana Linda M. Barker, Thomas F. Lyon 1977-5-8 1715 Humboldt 3 mi. W of Arcata in S pasture Comment
  UC1199025  Rosa nutkana var. nutkana Joseph P. Tracy 1926-5-15 7479 Humboldt Kneeland Prairie Northern Coast Ranges 762 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
  HSC99508  Rosa pisocarpa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 170 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
  UC154203  Rosa pisocarpa Joseph P. Tracy 1908-6 2873 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC154494  Rosa pisocarpa Harley P. Chandler June 1901 1544 Humboldt Klamath River North Coast Ranges 457 Comment
  CAS-BOT-BC146878  Rosa rubiginosa Henry M. Pollard 1946-8-27 s.n. Humboldt South side of Klamath River near Boyce Creek, Orleans region Comment
  CAS-BOT-BC146882  Rosa rubiginosa Alice Eastwood 1921-7-21 10650 Humboldt Carlotta Comment
  UCD17926  Rubus H. Olmo; T. S. Mallah 1953-4-3 53 61 Humboldt California. Humboldt County: 0.5 miles south of cemetary alongside highway in Rohnerville. East of airport. Comment
  HSC89515  Rubus armeniacus M. Roantree 1985-6-10 81 Humboldt East side of Trinidad Head Comment
  HSC102020  Rubus lasiococcus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 921 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC71715  Rubus leucodermis M. A. Baker 1980-6-26 2436 Humboldt Near Sims Creek 610 Comment
  UC467840  Rubus leucodermis Joseph Burtt Davy and Walter C. Blasdale 1899-5 5423 Humboldt near Hubbards Station (nw California); near Hubbards Station Comment
  UC492168  Rubus leucodermis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8905 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UCD98619  Rubus leucodermis Lindsay Clark; Stella Hartono 2009-9-15 KRC 36 Humboldt Waikiki Campground, King Range Conservation Area. 516 Comment
  HSC100637  Rubus nutkanus Carl C. Marshall Apr 1886 162 Humboldt Near stream. Comment
  CAS-BOT-BC147243  Rubus parviflorus Doris K. Kildale 1926-5-14 3196 Humboldt Big Lagoon Comment
  CAS-BOT-BC147244  Rubus parviflorus Doris K. Kildale 1926-3-26 1635 Humboldt Old Kneeland Road 609 Comment
  HSC56189  Rubus parviflorus Gilbert Muth 1979-8-1 12126 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC97656  Rubus parviflorus Kevin Thomas 2004-4-26 17 Humboldt Jacoby Creek Rd. Comment
  UC666864  Rubus parviflorus Joseph P. Tracy 1936-8-7 15104 Humboldt head of Little Hors-Linto Creek Trinity Summit 1524 Comment
  UCD20671  Rubus parviflorus A. T. Leiser 1980-7-9 s.n. Humboldt Humboldt County, North of Orick, Hwy 101 reroute, near Redwood Park. Comment
  HSC19676  Rubus spectabilis Lincoln Constance 1934-6-2 780 Humboldt Bull Creek Rd. to mouth of Bull Creek, top Bull Creek Comment
  HSC60111  Rubus spectabilis M. A. Baker 1977-5-1 278 Humboldt E of Humboldt State University. Comment
  HSC96356  Rubus spectabilis Gordon Leppig 1998-3-25 729 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  CHSC59812  Rubus ursinus Mary Sacks 1977-4-8 3 Humboldt South end of Patrick's Point State Park, ca 0.2 mi west of Hwy 101 and 5 mi north of Trinidad. 60 Comment
  HSC100639  Rubus ursinus Carl C. Marshall Mar 1886 138 Humboldt Everywhere. Comment
  HSC34808  Rubus ursinus David Peters 1975-4-9 5 Humboldt .1 mi. E of Kirkpatrick Quarry Rd. on Jacoby Cr. Rd. Comment
  HSC79483  Rubus ursinus Kenneth Clark 1980-3-24 547 Humboldt Shelter Cove, N fork of Deadman's Gulch 69 Comment
  UC467855  Rubus ursinus Joseph Burtt Davy and Walter C. Blasdale 1899-5 5401 Humboldt Hubbards Station Hubbards Station (nw California) Comment
  HSC17577  Rumex acetosella Norman H. Moe 1962-3-21 Humboldt Lanphere's Place Comment
  HSC54014  Rumex acetosella Griswold, Butler 1979-7-12 7153 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC76605  Rumex acetosella Denis Kearns 1981-7-22 323 Humboldt Near Whiteys Peak 1487 Comment
  HSC23129  Rumex acetosella Norman Dennis 1965-6-19 134 Humboldt 0.25 mi S and 1.0 mi. E of junction of Barry Ridge Rd. and Eureka-Bridgeville county rd., along Ashfield Ridge Rd., 5 mi. SE of Kneeland 793 Comment
  UCD100972  Rumex acetosella Collector unknown Date unknown s.n. Humboldt location unknown. Comment
  UCD101135  Rumex crispus Lincoln Constance 1934-5-26 659 Humboldt South Fork Eel River. North Dyerville Flat grove, near Founders' Tree. 48 Comment
  UCD100941  Rumex fueginus W. L. Jepson 1921-8-7 9329 Humboldt Stone Lagoon. Humboldt Coast. Comment
  HSC34982  Rumex obtusifolius Thomas W. Nelson 1974-9-13 1713 Humboldt King Salmon area Comment
  JEPS39867  Rumex obtusifolius Milo S. Baker 1923-8-4 181 Humboldt s of Stone Lagoon Comment
  UC1541397  Rumex salicifolius var. salicifolius Harold E. Parks 1934-8 5166 Humboldt Big Lagoon Comment
  UC1103532  Sagina apetala Joseph P. Tracy 1946-6-23 17598 Humboldt roadside near Dan McBride place Kneeland Prairie 762 Comment
  JEPS12969  Salix exigua Joseph P. Tracy 1931-9-19 9673 Humboldt Alton; Northern Coast Region, Van Duzen River 30 Comment
  JEPS14753  Salix exigua Joseph P. Tracy 1932-6-14 10151 Humboldt at Willow Creek Trinity River Valley; Northern Coast Region 152 Comment
  POM214871  Salix exigua Carleton R. Ball 1932-5-17 1335 Humboldt Above Trinity River. 1 mile below bridge on Trinity Hwy. 152 Comment
  UC519381  Salix exigua var. hindsiana Joseph P. Tracy 1933-5-19 12203 Humboldt Alton to Fortuna; Northern Coast Region, Eel R. 15 Comment
  CAS-BOT-BC106856  Salix hookeriana Harold E. Parks 1931-8-1 01053 Humboldt Little River Lagoon Comment
  CAS-BOT-BC107706  Salix hookeriana Harold E. Parks 1931-3-24 915 a Humboldt Trinidad 90 Comment
  CAS-BOT-BC107713  Salix hookeriana Doris K. Kildale 1927-3-25 3003 Humboldt Near Buckspot School House 50 Comment
  CAS-BOT-BC107714  Salix hookeriana Doris K. Kildale 1926-3-20 1557 Humboldt Big Lagoon, along coast Comment
  CAS-BOT-BC107731  Salix hookeriana Harold E. Parks 1931-3-26 904 Humboldt Alton, on Van Duzen River 15 Comment
  CAS-BOT-BC107768  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1223 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  CHSC9555  Salix hookeriana E. L. Smith 1971-4-6 925 Humboldt Ca. 7 mi s of Eureka at Field's Landing. Comment
  JEPS13090  Salix hookeriana Joseph P. Tracy 1936-10-24 15202 Humboldt Fortuna 15 Comment
  LA208762  Salix hookeriana Harold E.; Susan T. 1932-4-7 1103 Humboldt Little River Lagoon, Trinidad; at sea level Comment
  SBBG59112  Salix hookeriana H. E. Parks, S. T. Parks 1932-4-7 1103 Humboldt Little River Lagoon Comment
  SD939  Salix hookeriana Harold E. Parks August 1931 1053 Humboldt Little River Lagoon Comment
  UC1196681  Salix hookeriana Joseph P. Tracy 1919-3-30 5123 Humboldt Jacoby Creek Northern Coast Ranges, around Humboldt Bay (near the quarry) 91 Comment
  UC275526  Salix hookeriana Joseph P. Tracy 1924-9-21 6884 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  UC469129  Salix hookeriana Joseph P. Tracy 1931-8-23 9616 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC490457  Salix hookeriana Joseph P. Tracy 1932-5-10 9953 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC490476  Salix hookeriana H. E. Parks and Joseph P. Tracy 1932-8-13 10344 Humboldt vicinity Trinidad; Northern Coast Region 60 Comment
  POM219536  Salix hookeriana var. tomentosa H. E. Parks 1931-5-12 952 Humboldt Samoa. Humboldt Bay. Near sea level. 0 Comment
  UC198592  Salix laevigata Joseph P. Tracy 1916-6-19 4722 Humboldt near Forks of Dobbyn Creek; Northern Coast Ranges 182 Comment
  RSA034888  Salix laevigata H. P. Bracelin 1931-5-1 272 Humboldt Sylvandale, between Miranda and Meyers, South Fork of Eeel River. Comment
  RSA0030805  Salix lasiandra H. E. Parks, Joseph P. Tracy 1931-5-17 0966 Humboldt Willow Creek at Trinity River. 150 Comment
  UC481216  Salix lasiandra subsp. lasiandra Harold E. Parks 1931-5-20 996 Humboldt Blue Lake Mad R., Blue Lake 15 Comment
  UC481295  Salix lasiandra subsp. lasiandra Harold E. Parks and Joseph P. Tracy 1931-5-17 966 Humboldt mouth of Willow Creek at Trinity R. (banks of Willow Creek); Willow Creek 150 Comment
  CAS-BOT-BC128195  Salix lasiandra var. lasiandra Marcus E. Jones 1924-4-25 s.n. Humboldt Dyerville Comment
  CAS-BOT-BC107596  Salix lasiolepis Harold E. Parks; Joseph P. Tracy 1933-3-19 11006 Humboldt On Van Duzen River, two miles west of Bridgeville 228 Comment
  HSC20017  Salix lasiolepis J. P. Tracy 1933-4-9 10968 Humboldt Bridgeville, along Van Duzen River 229 Comment
  HSC98013  Salix lasiolepis Cara Witte 2007-7-20 566 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1460 Comment
  HSC99119  Salix lasiolepis Cara Witte 2008-6-13 726 Humboldt Forest Service Road 4N32. 1 mile south of intersection with Forest Service Road 4N32E. 1455 Comment
  JEPS12909  Salix lasiolepis Joseph P. Tracy 1927-4-10 7885 Humboldt Redwood Creek at Berry's; Northern Coast Ranges 274 Comment
  JEPS12916  Salix lasiolepis Joseph P. Tracy 1927-5-13 7996 Humboldt Redwood Creek at Berry's; Northern Coast Ranges 274 Comment
  JEPS12967  Salix lasiolepis Joseph P. Tracy 1931-9-26 9696 Humboldt at Redwood Creek Berry's; Northern Coast Ranges 274 Comment
  LA208774  Salix lasiolepis Harold E. Parks; 1931-5-14 963 Humboldt Van Duzen River between Alton and Carlotta 15.0 Comment
  POM161044  Salix lasiolepis Joseph P. Tracy 1926-8-12 7758 Humboldt Redwood Creek. At Berry's. 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
  UC471108  Salix lasiolepis Joseph P. Tracy 1931-9-26 9695 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC481807  Salix lasiolepis H. P. Bracelin 1931-5-1 269 Humboldt Sylvandale, between Miranda and Meyers South Fork of Eel River Comment
  UC490470  Salix lasiolepis Joseph P. Tracy 1932-9-5 10770 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC495609  Salix lasiolepis Joseph P. Tracy 1932-10-12 10877 Humboldt bank <of> S. Fork Eel R. Miranda; Northern Coast Ranges, S. Fork Eel R., Miranda 121 Comment
  UC506342  Salix lasiolepis Joseph P. Tracy 1933-4-9 10966 Humboldt Bridgeville, along Van Duzen River 228 Comment
  UC506394  Salix lasiolepis Joseph P. Tracy 1932-6-19 10244 Humboldt Buck Mountain Northern Coast Ranges (lower foothills of nw slope, in gully) 762 Comment
  UC511994  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1239 Humboldt Blue Slide Van Duzen River 91 Comment
  HSC20004  Salix lasiolepis J. P. Tracy 1932-6-19 10243 Humboldt North Coast Ranges; Buck Mountain, lower foothills of its northwest slope 762 Comment
  POM220140  Salix lasiolepis var. bigelovii H. E. Parks, Joseph P. Tracy 1931-5-17 976 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  CAS-BOT-BC107418  Salix lasiolepis var. lasiolepis Doris K. Kildale 1926-4-1 1701 Humboldt [Dobbyns] Dobbyn Creek Comment
  RSA171960  Salix lucida subsp. lasiandra Robert F. Thorne 1957-9-2 18988 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  SBBG57828  Salix lucida subsp. lasiandra H. E. Parks, J. P. Tracy 1931-5-17 966 Humboldt banks of Willow Crk Comment
  CAS-BOT-BC125607  Salix melanopsis Harold E. Parks 1931-10-15 01077 Humboldt Bishop Pine Lodge, Trinidad 75 Comment
  CAS-BOT-BC125611  Salix melanopsis Harold E. Parks 1931-5-14 0956 a Humboldt Van Duzen River above Bridgeville 300 Comment
  CAS-BOT-BC125629  Salix melanopsis Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-13 01252 Humboldt On floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC125633  Salix melanopsis Harold E. Parks 1931-10-15 01077 Humboldt Bishop Pine Lodge, Trinidad 75 Comment
  CAS-BOT-BC125634  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt East of Redwood Highway, 6 km. south of Alton 20 Comment
  HSC20042  Salix melanopsis H. E. Parks 1931-5-14 960 Humboldt Van Duzen River, between Alton and Carlotta 15 Comment
  LA208931  Salix melanopsis Harold E. Parks; 1931-5-14 962 Humboldt Van Duzen River between Alton and Carlotta 15.0 Comment
  SD975  Salix melanopsis Harold E. Parks, Joseph P. Tracy 1931-5-17 967 Humboldt Mouth of Willow Creek at Trinity River, sandbars 149 Comment
  UC1196564  Salix melanopsis Joseph P. Tracy 1931-5-3 9347 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  UC469449  Salix melanopsis Joseph P. Tracy 1931-5-3 9348 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  UC470449  Salix melanopsis Joseph P. Tracy 1931-9-19 9682 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
  UC481267  Salix melanopsis Harold E. Parks 1931-5-28 1025 Humboldt Little River Lagoon Comment
  UC511989  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1245 Humboldt Van Duzen R. at Blue Slide; Van Duzen R. 91 Comment
  UC519373  Salix melanopsis Joseph P. Tracy 1933-5-20 12262 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  SEINET7545185  Salix melanopsis H. E. Parks 1931-1 0962 Humboldt Van Duzen River between Alton and Carlotta 5 Comment
  CAS-BOT-BC129153  Salix scouleriana Doris K. Kildale 1925-12-22 1438 Humboldt Eureka, vacant lot Comment
  CAS-BOT-BC129154  Salix scouleriana Doris K. Kildale 1926-9-9 2687 Humboldt Black Oaks, near Low Gap of Mad River Comment
  UC1173583  Salix scouleriana Joseph P. Tracy 1935-7-26 14256 Humboldt at Water-dog Lakes Trinity Summit 1889 Comment
  UC1173631  Salix scouleriana Joseph P. Tracy 1937-2-21 15230 Humboldt near Grizzly Creek Van Duzen R. 91 Comment
  UC275514  Salix scouleriana Joseph P. Tracy 1924-2-10 6600 Humboldt at Hungry Hollow Bald Mt.; Northern Coast Ranges, Bald Mt. 762 Comment
  UC490503  Salix scouleriana Joseph P. Tracy 1932-2-7 9770 Humboldt Scotia Northern Coast Ranges, Scotia 30 Comment
  UC506348  Salix scouleriana Joseph P. Tracy 1933-3-12 10921 Humboldt Ferndale Northern Coast Ranges, Ferndale 30 Comment
  UC525974  Salix scouleriana H. E. Parks 1932-11-25 1351 Humboldt Spruce Cove (Parks Ranch) Trinidad; , Spruce Cove (Parks Ranch) Comment
  UC55955  Salix scouleriana J. P. Tracy 1900-8-5 922 Humboldt immediate vicinity Eureka 0 Comment
  CHSC13719  Salix sitchensis E. L. Smith 1971-8-17 1020 Humboldt On the Van Duzen River ca. 18 mi s of Eureka. Comment
  HSC90747  Salix sitchensis Jean Hanson 1980-3-8 24 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  UC176185  Salix sitchensis Joseph P. Tracy 1913-3-9 4013 Humboldt Van Duzen R. near Hydesville; Northern Coast Region, Van Duzen R. 60 Comment
  UC512013  Salix sitchensis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1230 Humboldt 1 1/2 mi. e. Alton (on ... floodplain of Van Duzen R.); Van Duzen R. 30 Comment
  CDA39588  Salix sitchensis Peter Haggard 1993-4-17 s.n. Humboldt Van Duzen River west of Bridgeville on Hwy 36. 0 Comment
  UC504018  Salix tracyi C. R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1244 Humboldt Van Duzen River at Blue Slide 91 Comment
  JEPS57405  Sambucus mexicana L. R. Heckard with T. I. Chuang 1968-7-4 1982 Humboldt on Kneeland road 10 mi n Bridgeville Comment
  RSA46896  Sambucus racemosa var. arborescens Doris K. Kildale 1927-3-22 2938 Humboldt N Fork of Elk River, Humboldt County Comment
  CAS-BOT-BC235124  Sambucus racemosa var. racemosa D. E. Breedlove 1962-6-8 3059 Humboldt U.S. Highway 101, 5 miles south of Orick 30 Comment
  HSC3992  Sambucus racemosa var. racemosa D. K. Smith 1968-3-3 9 Humboldt On West End Rd., ca. 3 mi. from Hwy. 299 Comment
  UC1119901  Sambucus racemosa var. racemosa G. T. Nordstrom 1937-7-1 1446 Humboldt 1.7 mi wsw Orick; Orick Quadrangle Comment
  CAS-BOT-BC235123  Sambucus racemosa var. racemosa E. A. McGregor 1921-8-30 s.n. Humboldt Requa and vicinity. Between slough and Klamath River near hotel Comment
  UC1199043  Sanguisorba minor subsp. muricata Joseph P. Tracy 1942-7-9 17274 Humboldt Eureka; grown in garden fr seed of plants introd into stock ranges of Humboldt Co. as forage plant to compete against Klamath weed 30 Comment
  HSC59088  Sanicula arctopoides Clark L. Miller 1979-5-9 3 Humboldt Samoa Dunes W of Samoa Blvd. Comment
  UC154052  Sanicula arctopoides J. P. Tracy 1900-6-5 852 Humboldt immediate vicinity of Eureka (at Bucksport); Bucksport 0 Comment
  HSC95577  Sanicula arctopoides Andrea Pickart 2002-3-14 7 Humboldt Samoa Dunes, BLM Endangered Plant Protection Area 0 Comment
  JEPS184  Sanicula arctopoides Joseph P. Tracy 1936-5-30 14838 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC1197110  Sanicula bipinnatifida Joseph P. Tracy 1928-6-24 8461 Humboldt Valley of South Yager Creek 762 Comment
  HSC21626  Sanicula bipinnatifida D. E. Anderson 1962-5-1 2194 Humboldt 1 mi. E of junction of Redwood Creek road and road to Hoopa Comment
  UC1197086  Sanicula laciniata Joseph P. Tracy 1921-4-24 5454 Humboldt facing South Fork Eel River (Northern Coast Ranges, Phillipsville); Northern Coast Ranges, Phillipsville 121 Comment
  JEPS992  Sanicula laciniata Joseph P. Tracy 1938-3-27 15701 Humboldt Miranda, along South Fork of Eel River South Fork Eel River; Miranda, South Fork Eel River 121 Comment
  UC642319  Sanicula laciniata Joseph P. Tracy 1938-3-27 15701 Humboldt along South Fork of Eel River, Miranda South Fork Eel River; , Miranda 121 Comment
  HSC65834  Sanicula tracyi R. York 1980-5-23 622 Humboldt Near Buck Mtn. 1524 Comment
  HSC68996  Sanicula tracyi Jacqueline Greenleaf 1980-8-12 314 Humboldt Near Henry Ridge. 1128 Comment
  HSC101053  Sanicula tracyi Lisa Hoover 1996-7-11 176 Humboldt From County Rd. 1 heading south: turn onto Forest Service Rd. 3N10; pass intersection with FS Rd. 2N10 1119 Comment
  HSC74373  Sanicula tuberosa M. A. Baker 1980-6-28 2501 Humboldt Near Mad River Buttes 1445 Comment
  UC1198885  Saxifraga aprica Joseph P. Tracy 1935-7-28 14313 Humboldt head of Devil's Hole (Trinity Summit); , Devil's Hole 1828 Comment
  UC666815  Saxifraga aprica Joseph P. Tracy 1935-7-24 14188 Humboldt near Ranger Station (Trinity Summit); Trinity Summit 1828 Comment
  JEPS42981  Saxifraga ferruginea Jos. P. Tracy 1932-7-18 10710 Humboldt head of Brett Hole (Trinity Summit); , Brett Hole Comment
  JEPS79979  Saxifraga mertensiana Joseph P. Tracy 1927-4-2 7884 Humboldt South Fork Eel River between Miranda and Redway; North Coast Ranges, South Fork Eel River 91 Comment
  UC673256  Saxifraga mertensiana Lincoln Constance, Reed C. Rollins 1942-5-11 2869 Humboldt 3 mi w of East Fork of Willow Creek; North Coast Ranges Comment
  RSA246889  Schoenoplectus acutus var. occidentalis Robert F. Thorne, Percy C. Everett 1965-8-9 35283 Humboldt Big Lagoon. 3 Comment
  HSC7443  Schoenoplectus americanus D. E. Anderson 1961-9-9 1792 Humboldt Along S end of Hwy. 101 causeway over Big Lagoon. Comment
  UC419066  Scirpus acutus var. occidentalis H. E. Parks 1930-9-14 771 Humboldt n shore Big Lagoon; n shore Big Lagoon Comment
  UC668018  Scirpus acutus var. occidentalis Joseph P. Tracy 1934-7-20 13472 Humboldt Big Lagoon 3 Comment
  UC668012  Scirpus cernuus Joseph P. Tracy 1934-7-13 13386 Humboldt Trinidad 91 Comment
  CDA39126  Scirpus maritimus Gordon Leppig 1998-6-25 851 Humboldt Route 101, mile marker 81.60 Comment
  HSC102057  Scirpus microcarpus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 962 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  BLMAR463  Scirpus microcarpus Jennifer Anthony-Wheeler 2007-8-9 463 Humboldt Samoa Peninsula, growing on Lanphere road 12 Comment
  CAS-BOT-BC110923  Scirpus microcarpus Doris K. Kildale 1928-5-15 6759 Humboldt Eureka-foot of Whipple Street Comment
  CAS-BOT-BC110924  Scirpus microcarpus Carl B. Wolf 1937-9-11 9324 Humboldt Redwood Highway, 3 mi. No. of Orick at Davidson's Ranch on Prairie Creek. 60 Comment
  UC50825  Scirpus pungens J. P. Tracy 1902-8-10 1765 Humboldt immediate vicinity Eureka 0 Comment
  UC1100811  Scirpus pungens R. U. Hart 1946-6-7 Humboldt 4 mi w Ferndale (s side of mouth of Eel River valley, pond w of Centerville); Eel River valley Comment
  JEPS62101  Scoliopus bigelovii Lincoln Constance 1934-6-8 836 Humboldt Cow Creek fire-trail from Bull Creek rd. n. over the divide into the headwaters of Bear Creek; Bull Creek Region, S. Fork Eel R., Cow Creek fire-trail Comment
  SEINET10469579  Scoliopus bigelovii Mary Susan Taylor 1975-4-12 Taylor 465 Humboldt 1 mi W of Berry Summit on Hwy 299, ca. 6 mi W of Willow Creek. Yellow Pine Forest. 762 Comment
  SEINET12050517  Scoliopus bigelovii F. H. Utech 1988-1 88 -019 Humboldt along US 101 near junction of Durphy Creek & South Fork Eel River 60 Comment
  JEPS6741  Scrophularia californica Joseph P. Tracy 1937-7-30 15565 Humboldt 6 mi s Arcata (Fickle Hill) 609 Comment
  SEINET10548800  Scrophularia californica Charlene A. Bennett 1976-8-6 Bennett 480 Humboldt Collected by hwy 101, n side of orick, rocky area, densely forested by river. Comment
  SEINET5223991  Scrophularia californica Unknown 2002-8-22 88 Humboldt Along Fischer Road 0.25mi N of the Mad River. Comment
  HSC32321  Scutellaria antirrhinoides D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5651 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  UC25792  Scutellaria antirrhinoides Harley P. Chandler June, 1901 1323 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  SEINET6982183  Scutellaria antirrhinoides Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, near serpentine outcrops, about 4 miles southeast of Kneeland. Comment
  UC1586911  Scutellaria antirrhinoides Juha Pykala and D. H. Norris 1987-5-20 794 Humboldt along Bull Creek Road from Panter Gap to 4 mi s of Panther Gap 243 Comment
  HSC35354  Scutellaria siphocampyloides A. M. Montalvo, J. D. Ackerman 1975-6-22 483 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36 Comment
  JEPS62902  Scutellaria siphocampyloides Joseph P. Tracy 1932-5-17 10083 Humboldt Trinity River Valley, Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC63212  Sedum laxum subsp. heckneri M. A. Baker 1979-7-6 1015 Humboldt W slope of Rattlesnake Creek Ridge overlooking Red Cap Creek, outcrop and road cut of FS Rd. 10N01 Comment
  UC1198838  Sedum laxum subsp. heckneri Joseph P. Tracy 1947-7-9 17865 Humboldt Horse Mountain Horse Mountain (on barren ledge of rock) 1432 Comment
Read comments
Aug 17 2011
  UC1198843  Sedum laxum subsp. heckneri Joseph P. Tracy 1944-7-3 17488 Humboldt along Trinity Highway (Willow Creek Canyon); Willow Creek Canyon 304 Comment
  HSC72663  Sedum radiatum M. A. Baker 1980-6-26 2469 Humboldt Near Sims Creek 610 Comment
  JEPS48046  Sedum radiatum W. L. Jepson 1902-6-20 1890 Humboldt Ft. Seward Ranch Ridge Ft. Seward Ranch ridge, Mail Ridge (= Mail Ridge, Rocky points) 1066 Comment
  CAS-BOT-BC63792  Sedum radiatum subsp. radiatum Reid Moran 1951-6-13 3485 Humboldt West slope of Buck Mountain 853 Comment
  CHSC79631  Selaginella kraussiana Gordon Leppig 2000-4-12 1290 Humboldt Arcata, behind Humboldt State University, at base of stump near Fern Lake spillway. UTM zone 10, 4526N, 409E. 48 Comment
  HSC95768  Selaginella kraussiana Gordon Leppig 2000-4-12 1290 Humboldt Arcata: behind Humboldt State University, at base of stump near Fern Lake spillway 49 Comment
  OBI79041  Selaginella rupestris Joseph P. Tracy 1920-10-24 5407 Humboldt Near Korbel, in dense shade. 61 Comment
  UC249773  Selaginella wallacei Joseph P. Tracy 1924-3-9 6607 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC82545  Senecio integerrimus var. major Thomas W. Nelson 1979-7-11 5003 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  JEPS37226  Senecio integerrimus var. major W. L. Jepson 1902-6-25 1939 Humboldt Green Point Ranch Redwood Creek Comment
  UC1223149  Senecio integerrimus var. major Joseph P. Tracy 1946-5-19 17537 Humboldt near Ashland Butte; Kneeland Prairie 762 Comment
  SBBG8070  Senecio minimus H. and M. Dearing 1939-6-23 3697 Humboldt 12 mi E of Arcata Comment
  UCD135606  Senecio minimus R. Tofsrud Date Unknown s.n. Humboldt Between Capetown and Ferndale. Comment
  HSC74692  Senecio sylvaticus Gail Newton 1981-7-22 2266 Humboldt Near Bug Creek 1375 Comment
  SEINET11802649  Senecio sylvaticus J. P. Tracy 1949-1 18467 Humboldt S of crossing of powerline,E of headwaters of Redwood Creek, Kinsey Ridge, S from Grouse Mt., 2-6 mi 1280 Comment
  UC204868  Senecio sylvaticus Joseph P. Tracy 1918-9-1 5095 Humboldt Newells Camp on old Kneelans Praire Road 457 Comment
  HSC70462  Senecio triangularis Gail Newton 1980-7-20 1630 Humboldt Near Bell Swamps 1426 Comment
  CAS-BOT-BC364331  Senecio triangularis Doris K. Kildale 1925-8-16 1172 Humboldt Trinity Summit - Elk Horn Prairie 1524 Comment
  JEPS48277  Sequoia sempervirens Harry McGinite 1932-1 Humboldt Eureka Comment
  JEPS48279  Sequoia sempervirens Lincoln Constance 1934-6-4 822 Humboldt road to Dyerville (Look Prairie and Bull Cr.); Bull Creek region, South Fork Eel River Comment
  NY64518  Sequoia sempervirens R. R. Halse 1989-5-13 3842 Humboldt Along U.S. Highway 101, 2 miles south of Weott 108 Comment
  SD34  Sequoia sempervirens Charlotte M. Wilder 1932-12-24 Humboldt Carlotta Comment
  UC195423  Sequoia sempervirens Joseph P. Tracy 1914-12-20 4638 Humboldt Eureka 0 Comment
  CAS-BOT-BC364785  Sericocarpus oregonensis subsp. oregonensis Henry M. Pollard 1947-8-30 s.n. Humboldt North Road along Klamath River near Van Fleet place, Orleans region Comment
  JEPS67222  Sidalcea malachroides Joseph P. Tracy 1936-5-17 14812 Humboldt 6 mi se Arcata (Fickle Hill); se of Arcata 609 Comment
  JEPS67224  Sidalcea malachroides Joseph P. Tracy 1918-7-1 4964 Humboldt along Eel River from South Fork to Scotia; Northern Coast Ranges, Eel River from South Fork to Scotia 60 Comment
  UC35225  Sidalcea malachroides Chestnut and Drew 1888-7-8 Humboldt near Arcata; near Arcata Comment
  HSC61193  Sidalcea malviflora subsp. nana Jimerson, J. Pageau 1979-5-24 473 Humboldt Near Orleans 226 Comment
  RSA43847  Sidalcea malviflora subsp. nana H. M. Pollard 1948-7-18 s.n. Humboldt Near Orleans. Comment
  HSC104350  Sidalcea malviflora subsp. patula James Regan, Humboldt Redwood Co., LLC 19 Humboldt Kneeland 854 Comment
  UC1197970  Sidalcea oregana subsp. spicata Joseph P. Tracy 1935-7-27 14275 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  HSC32097  Silene bolanderi D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5698 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC103773  Silene bolanderi M. R. Mesler 2014-6-4 1635 Humboldt Burr Valley Road near Dinsmore 1049 Comment
  UC852804  Silene californica Elizabeth Parsons Hawver Jun 1905-June 1915 Humboldt Carlotta Comment
  RSA43854  Silene californica H. M. Pollard 1948-8-9 s.n. Humboldt Camp Creek, near Orleans. Comment
  UC1541414  Silene californica H. E. and S. T. Parks June 1928 258 Humboldt Longvale 182 Comment
  CHSC110703  Silene campanulata subsp. campanulata Dean Wm. Taylor 2004-6-24 19130 Humboldt North Coast Range, Horse Mountain, along Titlow Hill road 0.4 miles north from the junction with the road to the mountain summit. 1310 Comment
  HSC98544  Silene campanulata subsp. glandulosa Cara Witte 2008-6-11 710 Humboldt National Forest Road 5N10. 2 miles south of intersection with Forest Service Road 5N41. 1286 Comment
  POM160266  Silene campanulata subsp. glandulosa Joseph P. Tracy 1926-6-20 7623 Humboldt Horse Mountain. 1524 Comment
  HSC39236  Silene gallica D. E. Anderson, J. P. Smith 1971-6-28 - 1267 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  CAS-BOT-BC181226  Silene hookeri subsp. bolanderi Doris K. Kildale 1926-6-27 2204 Humboldt Laribee Valley 701 Comment
  HSC44729  Silene laciniata subsp. californica Maralyn O'Meara 1972-6-8 78 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  JEPS23254  Silene lemmonii Joseph P. Tracy 1933-7-25 12870 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC75285  Sisymbrium officinale Joseph P. Tracy 1933-8-22 12976 Humboldt Eureka. 60 Comment
  HSC13915  Sisyrinchium bellum F. B. Plett 1963-3-31 14 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  JEPS12067  Solanum americanum Lincoln Constance 1934-6-2 786 Humboldt Bull Creek Road to mouth of (and up) Bull Creek (Bull Creek Region, South Fork Eel River); Bull Creek Region, South Fork Eel River Comment
  POM319387  Solanum laciniatum Patricia Wilder 1968-8-21 4405 Humboldt Northern coastal arm of Humboldt Bay, ca 2 miles SW of Samoa. Humboldt Bay drainage area. 5 Comment
  CHSC97982  Solanum parishii J. Breton; A. Livingston 2005-6-15 12 Humboldt NE of Grouse Mtn. UTM 0444876, 4511301. On rock outcrop. 1327 Comment
  SD143524  Solidago canadensis subsp. elongata H. E. Parks 1931-7 1056 Humboldt Trinidad 74 Comment
  SD42283  Solidago canadensis subsp. elongata Carl B. Wolf 1937-9-9 Humboldt north coast range, Wildcat Ridge, 6.3 mi S. of Ferndale. 305 Comment
  HSC102169  Solidago elongata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1081 Humboldt Patterson Meadows 1555 Comment
  HSC22503  Solidago elongata Wm. F. Bowman 1968-10-26 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  LA203957  Solidago elongata H. E. Parks; July 1931 - August 1931 1056 Humboldt Trinidad 76 Comment
  UCR48861  Solidago occidentalis R. D. Goeden, Don W. Ricker 1987-9-2 7 B Humboldt Carlotta, roadside on state Hwy 36 Comment
  HSC6200  Solidago spathulata D. K. Smith 1968-11-9 61 Humboldt Mad River Rd. Comment
  RSA89769  Solidago spathulata P. A. Munz 1954-7-25 19873 Humboldt At Humboldt Lighthouse south of Samoa. Comment
  UC1199319  Solidago spathulata J. P. Tracy 1900-7-4 885 Humboldt opposite Eureka (Samoa); Samoa Comment
  UC1541471  Solidago spathulata J. P. Tracy 1924-9-21 6900 Humboldt Eureka Comment
  UCD136062  Solidago spathulata T. C. Fuller 1961-9-28 7051 Humboldt Arcata-Samoa Road, 1.3 miles north of Samoa. Comment
  CAS-BOT-BC364968  Solidago velutina subsp. californica Joseph P. Tracy 1937-9-5 15682 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC6179  Solidago velutina subsp. californica J. P. Tracy 1937-9-5 15682 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  HSC6217  Sonchus asper J. W. Johnson 1962-6-12 1410 Humboldt Arcata; between the foredunes, at foredune 39, Samoa Comment
  HSC56101  Sorbus scopulina G. L. Clifton 1979-7-31 11824 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC750491  Sparganium emersum var. emersum Henry M. Pollard 1946-8-13 Humboldt near Harley Place (Orleans Region); Orleans Region Comment
  HSC4233  Spergula arvensis W. Lanphere 1937-4-20 Humboldt College Campus Comment
  HSC90751  Spergularia canadensis var. occidentalis Jean Hanson 1980-6-22 96 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka: W side of dike on NW side of island. Comment
  CHSC57426  Spergularia rubra L. P. Janeway 1984-6-23 895 Humboldt Titlow Hill. Prairie on ridgetop. 1478 Comment
  HSC4265  Spergularia salina Norman H. Moe 1962-5-17 Humboldt Lanphere's Place Comment
  RSA12532  Spiraea douglasii Carl B. Wolf 1934-7-2 5906 Humboldt 4.5 miles from Snow Camp on road to Bald Mt (Mtns E of Korbel). 1067 Comment
  UCD114053  Spiraea douglasii Malcolm A. Nobs; S. Galen Smith 1949-8-9 1226 Humboldt 1 mile north of Arcata at junction of Highways 101 and 299, Mad River Valley. Comment
  UC1222183  Spiranthes porrifolia Joseph P. Tracy 1950-6-23 18870 Humboldt 3 mi ne Alderpoint; Dobbyn Creek 213 Comment
  HSC27782  Spiranthes romanzoffiana J. D. Ackerman, A. Montalvo 1973-7-30 112 Humboldt Hwy. 101 between Arcata and Eureka, at Indianola Cutoff 3 Comment
  UC154007  Stachys ajugoides var. rigida Joseph P. Tracy 1908-6 2814 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC577316  Stachys ajugoides var. rigida Joseph P. Tracy 1936-8-7 15091 Humboldt head Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UCLA70873  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15969 Humboldt near Panther Gap (on road between Bull Creek to Mattole) 822 Comment
  UC162688  Stachys ajugoides var. rigida Joseph P. Tracy 1911-7-11 3515 Humboldt hills along Supply Creek Northern Coast Ranges, Hoopa Valley 182 Comment
  UCLA71140  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-15 15937 Humboldt vicinity Carlotta 30 Comment
  UCLA71151  Stachys ajugoides var. rigida Huron H. Smith 1911-6-5 3782 Humboldt Camp 20 Vances Comment
  UCLA71295  Stachys chamissonis C. Epling Aug 1933 Humboldt Clam beach Comment
  HSC81924  Stachys mexicana Thomas W. Nelson, Jane P. Nelson 1979-7-3 4955 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC34274  Stachys rigida var. rigida K. Irwin 1975-8-13 Humboldt Grogans Hole area Comment
  CAS-BOT-BC175345  Stellaria borealis subsp. sitchana Harley P. Chandler 1901-5-1 1196 Humboldt Humboldt Bay 30 Comment
  SEINET12558145 Image available Stellaria nitens Juha Pykala 1987-1 1853 Humboldt Kneeland, Greenwood Heights, N of the house of prof. D. H. Norris 335 Comment
  JEPS6211  Stenanthium occidentale Joseph P. Tracy 1937-7-25 15558 Humboldt n.e. Hawkins Bar (Happy Camp Mt., Trinity Summit Range); Trinity Summit Range, Happy Camp Mt. 1280 Comment
  HSC70964  Stipa lemmonii Gail Newton 1980-7-15 1584 Humboldt Near Sims Mtn. 1311 Comment
  HSC99013  Stipa lemmonii var. lemmonii Cara Witte 2007-6-7 231 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  HSC32279  Stipa occidentalis var. californica D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5624 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  CAS-BOT-BC87613  Streptanthus tortuosus Joseph P. Tracy; F. W. Pennell 1940-7-7 16667 Humboldt Grouse Mountain. 1463 Comment
  HSC103294  Streptanthus tortuosus Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-27 3014 Humboldt Six Rivers National Forest; ~ 1.7 mi. south of Berry Summit along Titlow Hill Road.; ~ 1.4 mi. west-northwest of Horse Mtn. Radio Tower. 980 Comment
  HSC74748  Streptanthus tortuosus Gail Newton 1981-7-22 2260 Humboldt Near Bug Creek 1375 Comment
  HSC104430  Streptanthus tortuosus Greg O'Connell 2013-6-27 Humboldt Summit of Mt. Andy 1159 Comment
  UC184371  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1912-7-26 3843 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC562688  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1935-7-24 14185 Humboldt near ranger station; Trinity Summit 1828 Comment
  UC902000  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1947-7-9 17845 Humboldt Horse Mountain 1432 Comment
  JEPS54017  Streptanthus tortuosus var. suffrutescens Chesnut and Drew 1888-1 Humboldt Comment
  UC1103496  Streptopus amplexifolius var. americanus Joseph P. Tracy 1949-6-25 18346 Humboldt near Box Camp; Trinity Summit 1524 Comment
  HSC17768  Stuckenia pectinata J. P. Tracy 1934-7-20 13462 Humboldt Big Lagoon 3 Comment
  HSC58186  Swertia radiata G. L. Clifton, Griswold 1979-8-2 12275 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC562304  Swertia radiata Joseph P. Tracy 1932-7-20 10731 Humboldt Corral Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC269566  Symphoricarpos albus var. laevigatus E. A. McGregor 1921-8-2 s.n. Humboldt Requa and vicinity. 6 miles E. up Klamath River on Terwah Road Comment
  BLMAR272  Symphoricarpos mollis Jennifer Anthony-Wheeler 1999-7-30 272 Humboldt Lacks Creek, growing along ridgees, slopes, open places 1219 Comment
  HSC102570  Symphoricarpos mollis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1557 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC602502  Symphoricarpos mollis Joseph P. Tracy 1936-6-28 15013 Humboldt near Murphy Meadows (Bald Mt); Bald Mt. 975 Comment
  HSC75958  Symphyotrichum bracteolatum Overton, Butler 1979-7-24 9740 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  SEINET11071711 Image available Symphytum asperum Joseph P. Tracy 1943-1 17448 Humboldt Near Iverson Dairy Ranch, Arcata Comment
  UC198639  Symphytum asperum Joseph P. Tracy 1916-4-30 4679 Humboldt around Humboldt Bay (Salmon Creek near barnyard); Northern Coast Ranges, , Salmon Creek 30 Comment
  UC582545  Synthyris reniformis Joseph P. Tracy 1926-2-28 7380 Humboldt East Fork of Willow Creek Canyon]; Northern Coast Ranges 457 Comment
  CAS-BOT-BC376734  Tanacetum bipinnatum David D. Keck; J. Clausen 1935-6-16 3388 Humboldt Mouth of Little River 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
  HSC73247  Tauschia kelloggii M. A. Baker 1980-5-18 1311 Humboldt Near Black Mtn. 1006 Comment
  HSC59852  Tauschia kelloggii M. A. Baker 1979-7-6 1007 Humboldt Just past the 4 mi. marker on Eyesee Rd. from Hwy. 96 Comment
  CAS-BOT-BC85214  Taxus brevifolia Doris K. Kildale 1926-8-31 2601 Humboldt Union Mattole - Geo. 7 Niner Ranch, Mattole River Valley Comment
  CAS-BOT-BC85215  Taxus brevifolia Doris K. Kildale 1927-7-17 3758 Humboldt Bug Creek 792 Comment
  CAS-BOT-BC85218  Taxus brevifolia Doris K. Kildale 1926-8-15 2503 Humboldt Willow Creek Canyon 769 Comment
  SD62056  Taxus brevifolia Darley F. Howe 1965-8-10 Humboldt 9.8 miles west of Willowcreek on U. S. #299 885 Comment
  CAS-BOT-BC447405  Tellima grandiflora Alice Eastwood 1907-4-22 22 Humboldt Trinidad, Light-house Point Comment
  HSC64043  Tellima grandiflora Carl Wishner 1978-5-1 464 Humboldt Boise Creek Campground, Six Rivers National Forest Comment
  JEPS49699  Tellima grandiflora Milo S. Baker 1923-7-24 Humboldt near Carlotta (Wilder's Ranch) Comment
  UCSB24358  Tellima grandiflora Tracy, Joseph 1935-7-23 Humboldt Trinity Summit; Lower End of Brett Hole 1584 Comment
  HSC101439  Thelypteris nevadensis Cara M. Witte Aug 2009 1070 Humboldt Grouse Mountain. Forest Service Road 4N32, .25 mile south of intersection with 5N04 1466 Comment
  UC1225806  Thelypteris nevadensis Joseph P. Tracy 1948-9-5 18171 Humboldt Happy Camp Mt.; Trinity Summit Range 1219 Comment
  HSC61646  Thermopsis macrophylla Ruby Van Deventer 1959-6-20 Humboldt Humboldt-Del Norte Co. line, Onion Lake 1067 Comment
  JEPS79993  Thlaspi californicum Joseph P. Tracy 1921-5-30 5483 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC55614  Tiarella trifoliata var. unifoliata Overton, Butler 1979-7-23 9503 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC64218  Tiarella trifoliata var. unifoliata J. O. Sawyer, M. A. Ericksen 1979-6-23 3383 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  UCD102963  Tiarella trifoliata var. unifoliata K. Esau 1934-5-8 s.n. Humboldt Redwood Highway, near Scotia. Comment
  CAS-BOT-BC436908  Tiarella trifoliata var. unifoliata Doris K. Kildale 1927-8-7 3860 Humboldt Lawrence Creek 609 Comment
  UC303041  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1926-6-27 7664 Humboldt Horse Mountain 1463 Comment
  HSC20439  Tolmiea diplomenziesii F. B. Plett 1963-5-15 47 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  UC11943  Tolmiea diplomenziesii J. Burtt Davy Jun 1899 5628 Humboldt Hoopa Mt.; North Coast Ranges Comment
  HSC74725  Torilis arvensis Gail Newton 1981-8-6 2411 Humboldt Near Mad River. 1308 Comment
  HSC75412  Torilis arvensis J. O. Sawyer, M. A. Ericksen 1980-7-7 3574 Humboldt Slopes along Aikens Creek, Adroni Research Area 457 Comment
  UC642292  Torilis nodosa Joseph P. Tracy 1927-6-18 8183 Humboldt near Petrolia (Hills between Petrolia and Ocean) 152 Comment
  UCD93212  Torreyochloa pallida var. pauciflora A. H. Murphy 1951-6-25 69 Humboldt Snow Camp Meadows, ca. 8 miles E. NE of Kneeland. Comment
  CAS-BOT-BC169178  Toxicodendron diversilobum Carl D. Duncan 1920-9-27 s.n. Humboldt Hoopa Valley Comment
  HSC49820  Toxicodendron diversilobum R. York 1979-4-21 244 Humboldt Behind the town of Korbel, Camp Bauer Comment
  JEPS60737  Trautvetteria caroliniensis Joseph P. Tracy 1937-7-2 15387 Humboldt ne of Hawkins Bar (in Trinity Summit Range, Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain Comment
  CAS-BOT-BC517421  Triantha occidentalis subsp. occidentalis Joseph P. Tracy 1914-9-6 4606 Humboldt Northern Coast Ranges, Bald Mountain between High Prairie and Snow Camp, near Seidell Ranch 1219 Comment
  HSC97982  Triantha occidentalis subsp. occidentalis Cara Witte 2007-7-10 473 Humboldt Horse Mountain Botanical Area. Forest service Road 6N18. 1434 Comment
  HSC27392  Trichostema lanceolatum Thomas W. Nelson 1970-9-3 210 Humboldt Mad River. Comment
  UC198890  Trichostema laxum Chestnut and Drew Humboldt Kneeland Prairie Comment
  HSC17934  Trientalis latifolia J. Sandborg, F. Sandborg May 1968 5 Humboldt Bluff Creek near Notice Creek, hillside 793 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
  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
  UC1197242  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1913-6-20 4225 Humboldt nw slope Buck Mtn (lower foothills); Northern Coast Ranges 762 Comment
  RSA739607  Trifolium arvense John Dittes, Josephine Guardino 2003-6-7 2003 -65 Humboldt 7.7 air SW of Orleans, 4.1 air miles NE of confluence of Trinity River and Klamath River., 0.3 air mile NW of confluence of Klamath River and Aikens Creek, along entrance road to Aikens Creek Campground. 107 Comment
  UC1103431  Trifolium barbigerum Joseph P. Tracy and Ernest B. Babcock 1912-5-12 3636 Humboldt Eureka Northern Coast Ranges Comment
  UC1223511  Trifolium barbigerum J. P. Tracy 1942-5-16 17332 Humboldt vicinity Garberville 152 Comment
  HSC45119  Trifolium bifidum R. Sutherland 1978-5-19 10 .19578 Humboldt 134 Comment
  RSA91561  Trifolium bifidum var. decipiens F. W. Peirson 1926-7-12 7031 Humboldt Redwood Creek, Orick. Comment
  UC169347  Trifolium ciliolatum Joseph P. Tracy 1912-7-4 3720 Humboldt near Hydesville; Northern Coast Ranges 60 Comment
  HSC100530  Trifolium depauperatum Carl C. Marshall May 1887 436 Humboldt Kneeland Prairie. Comment
  UC1197052  Trifolium dubium Joseph P. Tracy 1923-6-17 6267 Humboldt Dows Prairie Northern Coast Ranges 60 Comment
  UC198658  Trifolium dubium Joseph P. Tracy 1913-5-31 4699 Humboldt along Eel River (Holmes Flat, from South Fork to Scotia); Northern Coast Ranges 60 Comment
  HSC90242  Trifolium dubium Jean Hanson 1980-5-24 62 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka. W end of island Comment
  UCD108882  Trifolium dubium W. A. Williams 1951-6-14 s.n. Humboldt 3 miles E of Hydesville, Bech Ranch swale. Comment
  UC162781  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1908-6-8 2641 Humboldt at top Lawrence Creek hill; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1223460  Trifolium fragiferum Joseph P. Tracy 1933-8-22 12986 Humboldt 1 mi w Loleta Comment
  HSC28171  Trifolium fragiferum Thomas W. Nelson 1973-7-24 1099 Humboldt Flood plain of the Mad River at the Carson R.R. bridge Comment
  RSA168896  Trifolium fucatum var. fucatum Joseph P. Tracy 1950-6-8 18747 Humboldt Cape Ridge, one mil east of Cape Mendocino. 152 Comment
  UC573520  Trifolium hybridum H. S. Yates 1936-6-18 5724 Humboldt 2 mi s of mouth of Littler River Eureka quad 3 Comment
  HSC100887  Trifolium longipes Carl C. Marshall Jun 1886 299 Humboldt Trinity Summit. Comment
  HSC75475  Trifolium longipes J. O. Sawyer 1980-7-18 3622 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC101996  Trifolium longipes subsp. hansenii M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 895 Humboldt Patterson Meadows 1555 Comment
  UC33425  Trifolium longipes var. elmeri Chesnut and Drew 1888-8-1 Humboldt S. Fork of Trinity Comment
  UC1541572  Trifolium microcephalum Harold E. Parks May 1933 4314 Humboldt Spruce Cove Trinidad Comment
  UC1541587  Trifolium microcephalum Harold E. Parks May 1935 5539 Humboldt Spruce Cove Trinidad Comment
  UC160906  Trifolium microcephalum Joseph P. Tracy 1910-6-5 3144 Humboldt Ocean Beach Northern Coast Ranges, Humboldt Bay Comment
  CHSC52933  Trifolium microdon L. P. Janeway 1984-5-16 786 Humboldt On the North Spit of Humboldt Bay; on the west side of Samoa Rd ca. 1/4 mile north of the boat ramp. 3 Comment
  UC495684  Trifolium obtusiflorum Joseph P. Tracy 1932-5-22 10119 Humboldt between Miranda and Redway (South Fork of Eel River); Northern Coast Ranges 91 Comment
  UC1130106  Trifolium obtusiflorum H. S. Yates 1936-6-23 5871 Humboldt 3 mi ne Scotia; Rohnerville Quad. Comment
  UC160990  Trifolium obtusiflorum Joseph P. Tracy 1911-7-10 3488 Humboldt near mouth of Willow Creek (along Trinity River); Northern Coast Ranges, Valley of Trinity River 152 Comment
  POM162075  Trifolium oliganthum Joseph P. Tracy 1921-4-24 5438 Humboldt Phillipsville. Facing south fork of Eel River. 122 Comment
  HSC100538  Trifolium parvifolium Carl C. Marshall May 1886 225 Humboldt Arcata. Comment
  HSC70318  Trifolium repens M. A. Baker 1980-6-7 1869 Humboldt Near Ammon Creek 732 Comment
  BLMAR745  Trifolium subterraneum Jennifer Wheeler 2015-5-18 745 Humboldt King range, strawberry rock grazing allotment down windy point 243 Comment
  HSC45131  Trifolium variegatum R. Sutherland 1978-6-1 3 .1678 Humboldt 213 Comment
  UC169056  Trifolium willdenovii Joseph P. Tracy 1912-5-11 3106 Humboldt near Hydesville; Northern Coast Ranges 30 Comment
  HSC31739  Trifolium willdenovii Donald Spalinger 1974-5-12 57 Humboldt Williams Ridge Rd., 1 mi. N from junction with Bald Hills Rd. 732 Comment
  UC1197520  Trifolium willdenovii Joseph P. Tracy 1911-6-25 3261 Humboldt Bucksport Northern Coast Ranges 0 Comment
  CHSC10114  Trifolium wormskioldii J. W. Johnson 1961-8-17 1009 Humboldt Arcata. In a vernal pond community of Hollow 10 W. M. Lanphere Farm. Samoa Peninsula. Comment
  RSA518825  Trifolium wormskioldii Joseph P. Tracy 1923-6-17 6274 Humboldt Big Lagoon 6 Comment
  UC168972  Trifolium wormskioldii Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3590 Humboldt near Hydesville Northern Coast Ranges 30 Comment
  BLMAR610  Trifolium wormskioldii Jennifer Anthony-Wheeler 2011-4-21 610 Humboldt King range, Above Smith gulch, on Strawberry Rock. KRSR0004 243 Comment
  UC1223373  Trifolium wormskioldii Joseph P. Tracy 1950-6-8 18714 Humboldt 2 mi s Ferndale (near the Sand Cut, Wild Cat Rd) Comment
  HSC37956  Triglochin maritima Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  HSC28001  Trillium albidum Maralyn O'Meara 1973-6-12 202 Humboldt Runoff from Cold Spring Comment
  UC1222530  Trillium albidum Joseph P. Tracy 1950-5-7 18646 Humboldt head of S. Yager Comment
  UC146219  Trillium albidum Joseph P. Tracy 1905-4-2 2155 Humboldt region about Humboldt Bay near Arcata; Northern Coast Region, Humboldt Bay 0 Comment
  HSC100368  Trillium angustipetalum J. Moore 2007-5-17 1483 Humboldt Big Flat Campground. 488 Comment
Read comments
Jan 10 2018
  HSC99359  Trillium kurabayashii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 8 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC37360  Trillium ovatum Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 490 Humboldt Along Lost Man Creek. 38 Comment
  UC275520  Trillium ovatum Joseph P. Tracy 1923-4-15 6186 Humboldt Redwood Creek at Berry's; Northern Coast Ranges, Redwood Creek 274 Comment
  SEINET3888783  Trillium ovatum Michael Dalke 1979-3-31 8 Humboldt Eureka Quadrangle- Azalea Park 2 miles E of U.S. 101.; 0 24 Comment
  UC1103503  Trillium ovatum Joseph P. Tracy 1933-6-13 12587 Humboldt near summit of rd. from Hoopa w. to Bair's (Hoopa Mt.); Hoopa Mt. 1066 Comment
  CAS-BOT-BC521315  Trillium rivale Doris K. Kildale; L. B. Kildale 1930-5-24 9551 Humboldt Hoopa Valley 152 Comment
  JEPS10443  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1944-5-14 17467 Humboldt Eureka 6 Comment
  JEPS72932  Trisetum canescens Lincoln Constance 1934-5-23 612 a Humboldt se slope of mountain above Look Prairie 365 Comment
  UC212882  Trisetum canescens Joseph P. Tracy 1919-5-31 5157 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  UC526692  Trisetum canescens Joseph P. Tracy 1932-7-16 10614 Humboldt Corral Prairie; Klamath Mountains 1524 Comment
  UCD93602  Trisetum canescens P. B. Kennedy 1923-8-2 s.n. Humboldt Bluff Creek to Arcata. Comment
  HSC77401  Triteleia bridgesii L. P. Janeway 1983-5-29 319 Humboldt Along rd. to Fish Lake, 0.1 mi. W of Hwy. 96 152 Comment
  RSA183507  Triteleia hyacinthina D. E. Anderson 1965-5-15 3698 Humboldt About 5 miles N of Hoopa on Bald Hills Road. Comment
  HSC3103  Triteleia laxa Greg Bos 1965-5-15 273 Humboldt Berry Summit near Hwy. 299 793 Comment
  UC1197719  Triteleia laxa Joseph P. Tracy 1914-7-5 4563 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges 1066 Comment
  UC1197717  Triteleia laxa Joseph P. Tracy 1938-6-17 15966 Humboldt between Petrolia and coast; Domingo Hill 152 Comment
  UC1197721  Triteleia laxa J. P. Tracy 1906-6-24 2504 Humboldt s slope of hill near Fields Landing; Humboldt Hill 30 Comment
  UC666896  Triteleia laxa Joseph P. Tracy 1938-7-5 16001 Humboldt in woods by old Strong's District School House (5 mi e of Carlotta) 45 Comment
  CAS-BOT-BC85893  Tsuga heterophylla Joseph P. Tracy 1940-8-25 16704 Humboldt Bald Mountain 914 Comment
  UCD67633  Tsuga heterophylla D. Sanchez-Mata 1996-6-27 s.n. Humboldt Blue Lake. Mad River. 175 Comment
  HSC97590  Umbellularia californica Steven Lee 2004-4-26 32 Humboldt Horse Mtn., 4 mi. up Titlow Hill Rd. from Hwy. 299 Comment
  RSA173982  Umbellularia californica R. F. Thorne 1957-9-2 19001 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  HSC100513  Umbellularia californica Carl C. Marshall Apr 1887 358 Humboldt Moist ground back from coast. Comment
  HSC59082  Urtica dioica subsp. gracilis Thomas Wood 1979-5-1 144 Humboldt Arcata, near house at 3799 Spear Ave., along fence. 9 Comment
  UC32648  Vaccinium Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5651 Humboldt Hoopa Mt. Comment
  CAS-BOT-BC199305  Vaccinium ovatum Doris K. Kildale 1927-5-7 3115 Humboldt Elk Ridge Comment
  HSC31334  Vaccinium ovatum Larry E. DeBuhr, G. D. Wallace 1972-5-22 615 Humboldt Del Norte Coast Redwood State Park, Damnation Trail Comment
  HSC37342  Vaccinium ovatum Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 481 Humboldt Along Lost Man Creek. 38 Comment
  HSC7912  Vaccinium ovatum W. R. Rogers 1966-5-1 225 Humboldt Mill Creek Comment
  HSC89437  Vaccinium ovatum P. A. Daly 1984-5-13 26 Humboldt Along trail/Rd. at Trinidad Head. 61 Comment
  RSA697564  Vaccinium ovatum J. R. Bruff 1937-8-17 928 Humboldt Richardson Grove. Comment
  SEINET3107074  Vaccinium ovatum Steve Selva, Roger Jensen 1974-8-28 96 Humboldt Redwood forest behind Humboldt State University, Arcata. Comment
  POM118490  Vaccinium parvifolium Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  UCD118162  Vaccinium parvifolium T. I. Storer 1931-7-1 2222 Humboldt Coast. Comment
  HSC56160  Valeriana sitchensis subsp. sitchensis G. L. Clifton, Griswold 1979-8-1 12035 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC212729  Valeriana sitchensis subsp. sitchensis Joseph P. Tracy 1919-9-18 5230 Humboldt Trinity Summit; Northern Coast Ranges 1828 Comment
  CAS-BOT-BC76054  Vancouveria hexandra L. R. Abrams 1916-7-11 5983 Humboldt Between Blocksberg and Bridgeville. Comment
  CAS-BOT-BC76055  Vancouveria hexandra Harley P. Chandler 1901-5-1 1162 Humboldt North Coast Ranges. Humboldt Bay. 30 Comment
  HSC71796  Vancouveria hexandra Gail Newton 1980-6-16 171 Humboldt Near Monks Camp. 1097 Comment
  HSC3387  Vancouveria hexandra N. D. Dennis 1965-5-2 37 Humboldt 2 mi. N of Trinidad on Hwy. 101 Comment
  HSC59740  Vancouveria hexandra Clark L. Miller 1979-5-15 2133 Humboldt Jolly Giant Creek behind HSU dorms Comment
  HSC70723  Vancouveria planipetala Gail Newton 1980-7-14 1517 Humboldt Near Deadman Ridge 1097 Comment
  UC1222525  Veratrum californicum var. californicum Joseph P. Tracy 1950-6-25 18878 Humboldt nw slope Buck Mountain; Burr Valley 1066 Comment
  UC175819  Veratrum californicum var. californicum Joseph P. Tracy 1913-6-23 4280 Humboldt near summit ridge between Van Duzen and Mad Rivers (in wet meadow); Northern Coast Ranges, Dinsmore's Ranch 1066 Comment
  UC1198209  Veratrum insolitum Joseph P. Tracy 1949-7-19 18386 Humboldt head Friday Ridge; Grouse Mountain 1524 Comment
  HSC98712  Verbascum blattaria Cara Witte 2007-8-1 616 Humboldt Friday Ridge Road (Forest Service Road 6N08). 1/2 mile north of intersection with Forest Service Road 5N09. 1414 Comment
  CDA30687  Verbascum virgatum M. K. Beyers, I. Shepardson 2009-9-13 247 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
  RSA0049599  Veronica hederifolia var. triloba Dean Wm. Taylor 2013-5-8 21405 Humboldt Arcata, about the grounds of the Masonic Lodge, on Bayside road east of Highway 101 21 Comment
  HSC34650  Veronica persica A. M. Montalvo 1975-4-10 204 Humboldt Vacant lot bordering HSU campus between Union St. and A St. 15 Comment
  UC147877  Veronica scutellata J. P. Tracy 1901-6-30 1196 Humboldt immediate vicinity of Eureka 0 Comment
  CHSC31325  Vicia Mark Stopher 1980-6-4 101 Humboldt Uncommon in diked off upland habitat along Elk River near Hwy 101 bridge. 1 Comment
  HSC98614  Vicia americana var. americana Cara Witte 2008-7-2 803 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  UC1197467  Vicia americana var. americana Joseph P. Tracy 1914-5-14 4437 Humboldt Fort Seward; Northern Coast Ranges 121 Comment
  CHSC31288  Vicia gigantea Mark Stopher 1980-6-4 102 Humboldt Along Eel River near Hwy 101 bridge. 1 Comment
  HSC15268  Vicia gigantea S. J. Hawks 1965-5-18 75 Humboldt Clam Beach. Comment
  HSC15262  Vicia hirsuta W. F. Nickel 1965-4-22 Humboldt N Arcata on E side of Hwy. Comment
  UC162799  Vicia sativa subsp. nigra J. P. Tracy 1901-6-30 1202 Humboldt immediate vicinity Eureka 0 Comment
  HSC15255  Vicia sativa subsp. nigra W. F. Nickel 1965-4-28 Humboldt On S side of Biological Science Building, near baseball field Comment
  HSC90266  Vicia sativa subsp. nigra Jean Hanson 1980-5-24 66 Humboldt Indian (Gunther) Island in Humboldt Bay, city of Eureka, W end of island, S of dike Comment
  UCSB61648  Vicia tetrasperma Ertter, Barbara; Delendick, Thomas 1987-5-16 Humboldt Hwy 299 roadside ca. 8 mi E of Arcata, 9 1/2 mi W of Lord Ellis summit Comment
  CAS-BOT-BC263945  Viola adunca Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CDA11191  Viola adunca G. F. Hrusa, N. Kang 1992-3-14 9380 Humboldt StageCoach Hill annex of Prairie Creek Redwoods State Park. Comment
  HSC98827  Viola adunca var. adunca Cara Witte 2007-6-1 167 Humboldt Horse Mountain Botanical Area. Along Forest Service Road 6N38. 1382 Comment
  HSC98980  Viola adunca var. adunca Cara Witte 2007-6-13 250 Humboldt Near Buck Flat. Along creekbed that parallels 5N01. 1578 Comment
  JEPS50216  Viola bakeri Joseph P. Tracy 1932-7-15 10581 Humboldt Ridges e of Corral Prairie; Klamath Mountains, Trinity Summit 1828 Comment
  UC707010 Image available Viola californica Milo S. Baker 1946-6-14 11492 Humboldt Miller Spring South Fork Mt.; S Fork of Miller Spring, Humboldt Co. 1524 Comment
  HSC98620  Viola cuneata Cara Witte 2008-5-26 657 Humboldt National Forest 1. 1 mile north of intersection with Forest Service Road 5N10. 1457 Comment
  HSC71037  Viola glabella Thomas W. Nelson 1977-4-20 3329 Humboldt Along USFS Road 1N15 at summit 915 Comment
  HSC71790  Viola glabella Gail Newton 1980-6-16 178 Humboldt Near Monks Camp. 1097 Comment
  UC1103563  Viola glabella Joseph P. Tracy 1940-8-25 16710 Humboldt near High Prairie; Bald Mountain 1036 Comment
  UC1761732  Viola hallii H. E. Parks 1934-6-27 5255 Humboldt Grouse Mountain Comment
  UC275485  Viola hallii Joseph P. Tracy 1925-5-30 7034 Humboldt Laribee Valley; Northern Coast Ranges 701 Comment
  UC66206  Viola ocellata Mrs. M. H. Manning June 1902 Humboldt Hupa Comment
  HSC21827  Viola ocellata J. F. Knezevich 1967-6-1 171 Humboldt 5 mi. E of Willow Creek on Hwy. 299 Comment
  SEINET200806 Image available Viola ocellata J. P. Tracy 1922-4-30 6034 Humboldt Tinity River Valley near Willow Creek 500 Comment
  HSC49627  Viola odorata R. York 1979-4-13 218 Humboldt College Cove, 1 mi N of Trinidad Comment
  BLMAR574  Viola praemorsa Jennifer Wheeler 2010-5-12 574 Humboldt Lacks Creek, Faulkner prairie 731 Comment
  HSC21878  Viola praemorsa subsp. praemorsa Greg Bos 1965-5-15 272 Humboldt 2 mi. W of Berry Summit along US 299 701 Comment
  JEPS50373  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1930-6-8 8730 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  POM222663  Viola praemorsa subsp. praemorsa Milo S. Baker 1935-4-18 8059 Humboldt Near headwaters of South Fork of Yager Creek, about 2 mi W of Bridgeville-Kneeland Hwy, on road to Carlotta. Comment
  UC1222513  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1951-5-20 19403 Humboldt near Kneeland School House Comment
  HSC104092  Viola sempervirens Monica Rodriguez, William A. Worley 2015-2-21 6 Humboldt Rock Creek Ranch; 8.2 mi. along South Fork Rd. from Redwood Highway 199. 134 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
  UC1761734  Viola sheltonii W. K. Parks Jul 1933 6237 Humboldt South Fork Mt. Comment
  HSC37933  Vulpia bromoides Peter Sorensen 1976-6-14 Humboldt N Spit Comment
  HSC70759  Vulpia bromoides R. York 1980-5-17 524 Humboldt Near Le Perron Peak 792 Comment
  UC34061  Vulpia bromoides J. P. Tracy 1900-6-23 858 Humboldt immediate vicinity Eureka 0 Comment
  UC180481  Vulpia microstachys var. pauciflora Joseph P. Tracy 1914-5-14 4463 Humboldt Fort Seward; Northern Coast Ranges 121 Comment
  HSC71646  Vulpia myuros J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9930 Humboldt Ishi Pishi Rd., 2.5 mi. from its junction with Hwy. 96 in Orleans 213 Comment
  HSC9926  Vulpia myuros E. W. Styskel 1964-4-3 56 Humboldt 0.25 mi. S of Garberville along Sprowl Creek Rd. Comment
  SDSU911  Whipplea modesta D. F. Howe 1961-8-2 3121 Humboldt 7.7 Miles east of Orick on Bald Mtn. Road. 610 Comment
  HSC13045  Woodwardia fimbriata Steve Dorei 1970-10-13 45 Humboldt H.S.U. campus, Arcata, W of Forestry building, SW corner of parking lot Comment
  HSC95858  Woodwardia fimbriata Will Ferrand 2002-4-27 31 Humboldt H.S.U. Campus, next to E entrance of 3rd floor, Sci. A 24 Comment
  CAS-BOT-BC382918  Wyethia angustifolia Doris K. Kildale 1927-7-1 3614 Humboldt Alton Hill 30 Comment
  HSC98878  Wyethia angustifolia Cara Witte 2008-7-2 797 Humboldt National Forest Road 1; 5 miles south of intersection with 5N04. Before cattle guard crossing. 1406 Comment
  SBBG36550  Wyethia angustifolia H. and M. Dearing 1933-5-15 2521 Humboldt Weott Comment
  CAS-BOT-BC382927  Wyethia angustifolia D. E. Breedlove 1961-7-4 654 Humboldt On U.S. Highway 299, 13.7 miles west of Willow Creek 731 Comment
  JEPS28953  Wyethia glabra D. E. Breedlove 1961-7-4 654 Humboldt 13.7 mi w Willow Creek (U.S. Highway 299) 731 Comment
  HSC76215  Wyethia longicaulis Overton, Butler 1979-7-24 9727 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  UC302180  Wyethia longicaulis Joseph P. Tracy 1926-5-30 7517 Humboldt near Horse Mt. Pass (on Trinity Highway); Northern Coast Ranges, Horse Mountain 883 Comment
  HSC39230  Xerophyllum tenax D. E. Anderson, J. P. Smith 1971-7-6 - 1282 Humboldt Horse Mtn. Comment
  HSC8423  Zeltnera muehlenbergii D. E. Anderson 1961-7-14 1757 Humboldt N-facing slope Comment
  RSA168946  Zigadenus micranthus Joseph P. Tracy 1950-6-25 18882 Humboldt Burr Valley. On NW slope of Buck Mtn. 1067 Comment
  UC1198216  Zigadenus micranthus var. micranthus Joseph P. Tracy 1947-6-8 17710 Humboldt open flat by old Strong's District School House (5 mi e of town, Carlotta); Carlotta 60 Comment
  CDA1423  Zostera japonica Gordon Leppig, David Couch 2006-11-17 2396 Humboldt Arcata Bay. Mudflat W of City of Arcata oxidation ponds, upper intertidal zone, 2 m from dike. 0 Comment
  HSC93950  Zostera marina F. J. Shaughnessy 1999-6-14 Humboldt Arcata Marsh and Wildlife Sanctuary, Humboldt Bay, Fields Landing Comment



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