Search Results — 2000 specimen records retrieved (1346 records with coordinates)
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Results for search: County=HUMBOLDT; Source=All;   

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

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC55100  Abies concolor G. L. Clifton 1979-7-31 11814 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC70566  Abies concolor M. A. Baker 1980-7-23 3190 Humboldt Near Orleans Mtn. 1859 Comment
  HSC13030  Abies grandis D. Santana, C. Kline Oct 1970 3 Humboldt HSC Campus Comment
  HSC55137  Abies procera G. L. Clifton, Griswold 1979-8-1 12003 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC73024  Abies procera Gail Newton 1980-8-10 1987 Humboldt Near Blake Mtn. 1798 Comment
  RSA15561  Abronia latifolia Carl B. Wolf 1927-8-29 1211 Humboldt Devils Gate, S of Cape Mendocino Comment
  RSA0025091  Abronia latifolia Carl B. Wolf 1937-9-9 9306 Humboldt Coast, 2 miles south of Cape Mendocino. 6 Comment
  UC665677  Abronia umbellata subsp. breviflora H. E. Parks 1941-9-1 24212 Humboldt mouth of Little River Comment
  UC1360497  Acaena novae-zelandiae D. W. Cooper 1966-10-10 Humboldt On ridge just southeast of Forest Service Nursery, ca. 2 miles southeast of Crannell and ca. 4 miles east of U.S. Hwy. 101. Comment
  CAS-BOT-BC330541  Acer circinatum Doris K. Kildale 1927-5-13 3134 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC330548  Acer circinatum H. E. McMinn 1922-8-5 355 Humboldt Near Van Duzen River Comment
  UC35086  Acer circinatum W. C. Blasdale 1890-1 Humboldt Blue Lake Comment
  HSC58071  Acer glabrum var. torreyi G. L. Clifton, Griswold 1979-8-1 11962 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  CAS-BOT-BC331591  Acer macrophyllum Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC2817  Acer macrophyllum D. E. Anderson 1962-3-17 1933 Humboldt 3 mi. W of Bridgeville along Hwy. 36 Comment
  HSC100910  Acer macrophyllum Carl C. Marshall May 1886 208 Humboldt Banks of streams. Comment
  HSC37924  Achillea millefolium Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  HSC73585  Achillea millefolium Gail Newton 1980-7-14 1495 Humboldt Near Last Chance Ridge. 1219 Comment
  UC9738  Achlys californica Harley P. Chandler June, 1901 1293 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 182 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
  SBBG70036  Achlys triphylla R. Hartwell 1938-8-3 Humboldt Bull Crk Flat Redwood Grove Comment
  UC552773  Achnatherum lemmonii H. E. Parks and Joseph P. Tracy 1934-6-27 11053 Humboldt Grouse Mt. 1432 Comment
  UCD103770  Acmispon americanus var. americanus Linda M. Barker 1976-6-1 1548 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC69893  Acmispon denticulatus Thomas W. Nelson, Jane P. Nelson 1977-7-29 3639 Humboldt Beside SR 36 at head of Larabee Valley 823 Comment
  HSC40403  Acmispon micranthus Linda M. Barker 1976-5-13 1493 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  HSC45473  Acmispon nevadensis Thomas W. Nelson, Jane P. Nelson 1978-7-2 4399 Humboldt Off FS 2S08 near Pine Mtn., road to Lost Lake 1463 Comment
  UC902107  Aconitum columbianum Joseph P. Tracy 1949-8-11 18459 Humboldt Snow Camp 1402 Comment
  HSC55613  Aconitum columbianum subsp. columbianum Overton, Butler 1979-7-23 9502 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC55866  Aconitum columbianum subsp. viviparum G. L. Clifton, Griswold 1979-7-25 10888 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC54752  Aconogonon davisiae G. L. Clifton, Griswold 1979-7-26 10270 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UC1199430  Adenocaulon bicolor Joseph P. Tracy 1912-7-27 3880 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC249778 Image available Adiantum X tracyi Joseph P. Tracy 1924-9-16 6868 Humboldt <collector's garden> Eureka; Northern Coast Ranges 30 Comment
  POM182458  Adiantum aleuticum Joseph P. Tracy, H. H. Tracy 1916-6-25 4742 Humboldt Redwood Creek, East of Trinidad 152 Comment
  CAS-BOT-BC65727  Adiantum pedatum Kenneth Clark 1980-6-14 691 Humboldt Point Delgada quad, north fork Dead Man's Gulch 83 Comment
  RSA178539  Aesculus californica Joseph P. Tracy 1950-6-21 18856 Humboldt Trinity River Valley, near the South Fork: At mouth of South Fork, on west side. 183 Comment
  HSC35781  Agastache urticifolia Thomas W. Nelson, B. Reinhardt 1975-7-30 2096 Humboldt Head of Pilot Creek, Last Chance Ridge Comment
  HSC98763  Agastache urticifolia Cara Witte 2007-6-27 363 Humboldt Forest Service Road 5N04. Near Grouse Mountain. Approximately 1/4 mile east of spring. 1583 Comment
  UC194431  Ageratina occidentalis P. E. Goddard Jun 1 1906-Jul 1 1906 638 Humboldt North Fork Eel River Comment
  HSC32125  Agoseris grandiflora D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5586 Humboldt Mount Lassic and 2 smaller peaks to immediate east 1768 Comment
  HSC4595  Agoseris grandiflora J. W. Johnson 1961-8-17 1004 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  UC164783  Agoseris grandiflora var. grandiflora J. P. Tracy 1903-5-22 1889 Humboldt Alder Point Alder Point 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
  OBI6921  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1949-6-25 18344 Humboldt 1 mi W of Mud Springs (to Box camp on W slope of Trinity summit) Comment
  HSC79419  Agoseris heterophylla Kenneth Clark 1980-4-18 582 Humboldt On Coastal Bluffs above Dead Man's Gulch 137 Comment
  RSA167315  Agoseris heterophylla Joseph P. Tracy 1950-7-6 19006 Humboldt On the Albee Road 2 miles south of Burr Valley 1159 Comment
  UC275458  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1925-5-30 7038 A Humboldt Laribee Valley; Northern Coast Ranges 701 Comment
  UC1199482  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1921-4-24 5464 Humboldt grassy slopes and open oak groves facing S Fk of Eel River Phillipsville; Northern Coast Ranges, South Fork of the Eel River 121 Comment
  UC204708  Agrostis alba Joseph P. Tracy 1918-7-5 5018 Humboldt moist field Northern Coast Ranges, White Thorn Valley 304 Comment
  UCD51860  Agrostis capillaris A. H. Murphy 1947-8-5 s.n. Humboldt McComb Ranch, Bald Hills, 7-8 miles SE of Orick. Comment
  RSA44465  Agrostis densiflora Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River at Orleans. Comment
  CAS-BOT-BC127284  Agrostis exarata Joseph P. Tracy 1927-7-17 8285 Humboldt Northern Coast Ranges. Three Cabins. Chaparral Mountain. 457 Comment
  UC1052443  Agrostis exarata H. E. and S. T. Parks 1952-6 7553 Humboldt Spruce Cove Trinidad 60 Comment
  UC1103373  Agrostis exarata J. P. Tracy 1900-9-9 953 Humboldt Yager Creek near Hydesville; Yager Creek 60 Comment
  UC1103380  Agrostis exarata Joseph P. Tracy 1935-7-27 14282 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC292580  Agrostis exarata H. E. Parks 8302 Humboldt 100 Comment
  UCSB51224  Agrostis exarata Almanza, Ed 1976-7-15 Humboldt Big Lagoon Campground, Big Lagoon Comment
  SEINET10810360  Agrostis exarata Harold E. Parks Parks 5607 Humboldt Spruce Cove, Trinidad. In cultivated areas. Comment
  RSA293101  Agrostis hallii J. P. Smith 1977-7-3 9257 Humboldt Six Rivers National Forest. Along Forest Service Road 13N01, 3 miles from its junction with Hwy. 36 549 Comment
Read comments
Nov 3 2011
  UC187288  Agrostis hallii J. P. Tracy 1900-7-4 876 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa Comment
  UC526882  Agrostis hallii Joseph P. Tracy 1930-6-29 8812 Humboldt nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  UCD52685  Agrostis hallii H. S. Yates 1936-6-18 5728 Humboldt Near mouth of Litter River. 4 Comment
  BLMAR707  Agrostis hallii Jennifer Wheeler 2013-10-25 707 Humboldt Lacks Creek, Upper Round Prairie 731 Comment
  CAS-BOT-BC139131  Agrostis oregonensis Joseph P. Tracy 1934-7-13 13392 Humboldt North Coast Ranges. Dows Prairie. 60 Comment
  CAS-BOT-BC139061  Agrostis pallens Joseph P. Tracy 1935-7-28 14335 Humboldt Trinity Summit. Head of Brett Hole. 1828 Comment
  CDA20604  Agrostis pallens B. Freeman 2005-8-1 PDR 1368990 Humboldt North Coast; Big Lagoon. 0 Comment
  HSC98624  Agrostis pallens Cara Witte 2007-7-11 500 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  RSA10063  Agrostis pallens Joseph P. Tracy 1932-7-17 10661 Humboldt Trinity summit. Corral Prairie 1524 Comment
  UC1145072  Agrostis viridis Joseph P. Tracy 1938-8-14 16112 Humboldt along mining ditch near South Fork; Trinity River Valley 304 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
  SEINET14062595  Aira caryophyllea M. A. Baker 1980-5-17 1280 Humboldt Black Mtn. Comment
  HSC33761  Aira praecox Ron Ralston 1975-5-24 81 Humboldt Samoa Dunes off Samoa Blvd., across from boat landing Comment
  HSC8867  Aira praecox J. W. Johnson 1961-9-4 1100 Humboldt Aracta, Samoa Peninsula, Christenson Farm Comment
  UC194898  Alisma plantago-aquatica Joseph P. Tracy 1916-6-19 4724 Humboldt Dobbyn Creek Northern Coast Ranges 182 Comment
  UC13826  Allium acuminatum Harley P. Chandler June, 1901 1349 Humboldt Hupa Indian Reservation Morth Coast Ranges, Hupa Indian Reservation 152 Comment
  CAS-BOT-BC459419  Allium acuminatum Harley P. Chandler 1901-6-1 1349 Humboldt Hupa Indian Reservation, North Coast Ranges 152 Comment
  HSC102113  Allium amplectens M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1017 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  RSA335882  Allium amplectens D. W. McNeal, L. V. Mingrone 1967-6-12 382 Humboldt 8.0 miles NW of Bridgeville on the county road to kneeland. Comment
  CAS-BOT-BC462972  Allium bolanderi Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC102062  Allium campanulatum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 964 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  CAS-BOT-BC469020  Allium falcifolium Carl Purdy 1937-6-1 s.n. Humboldt Grouse Mountain Comment
  HSC71825  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson 1980-6-27 5956 Humboldt Saddle between Mt. Lassic and peak to E 1677 Comment
  RSA293086  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson 1980-6-27 5955 Humboldt Signal Peak south of Mount Lassic. 1524 Comment
  OBI35866  Allium siskiyouense David J. Keil 1983-7-2 17327 Humboldt Horse Mountain Summit SW of Willow Creek. Comment
  CAS-BOT-BC476628  Allium unifolium D E Breedlove 1961-7-3 642 Humboldt In dense grove of Sequoia sempervirens, along Eel River. 7.4 miles north of Phillipsville 243 Comment
  HSC104412  Allium unifolium Adam N. Canter 2017-4-20 6 Humboldt BLM, Lost Coast Headland, Guthrie Creek 60 Comment
  POM170198  Allium unifolium Jos Burtt Davy 1899-6-11 5444 Humboldt Between Hubbard s Station and Elk Prairie. Comment
  RSA75603  Allium unifolium Albert M. Vollmer, L. Beane 1951-6-11 138 Humboldt Horse Mountain-Shelter Cove Road. Comment
  HSC70498  Allium validum Gail Newton 1980-7-20 1628 Humboldt Near Bell Swamps 9 Comment
  CAS-BOT-BC171313  Alnus incana subsp. tenuifolia Joseph P. Tracy 1927-8-22 8335 Humboldt Bald Mountain; In cold wet meadow near High Prairie 1066 Comment
  HSC40988  Alnus rhombifolia Thomas W. Nelson, Jane P. Nelson 1977-6-19 3518 Humboldt S of Alder Spring 1463 Comment
  UC1193076  Alnus rhombifolia R. E. Nelson 1950-8-31 153 Humboldt streamside 3 mi nw Neafus Peak; Quad. 29D1 609 Comment
  UC249711  Alnus rhombifolia Joseph P. Tracy 1922-1-15 5983 Humboldt 4 mi above Carlotta; Northern Coast Ranges, Van Duzen River 30 Comment
  SEINET187411  Alnus rubra H. E. Parks, ST Parks 1938-4-1 24126 Humboldt Spruce Cove Trinidad 61 Comment
  RSA46662  Alnus viridis subsp. sinuata Doris K. Kildale 1937-9-26 15377 Humboldt Snow Camp. Comment
  SACT000308  Alopecurus geniculatus Malcolm Nobs, S. Smith 1949-8-3 Humboldt located on borders of irrigation ditch, 1 mile south of fields landing Comment
  UCD55904  Alopecurus geniculatus Joseph P. Tracy 1938-7-15 16063 Humboldt mouth of Elk River, near Eureka. 6 Comment
  RSA15621  Amelanchier alnifolia Carl B. Wolf 1927-8-30 1261 Humboldt 3 miles S of Thorn3 miles S of Tom's Place Comment
  HSC74216  Amelanchier alnifolia var. semiintegrifolia M. A. Baker 1980-7-23 3173 Humboldt Near Orleans Mtn. 1859 Comment
  SD41377  Ammophila arenaria Edith A. Purer 1932-7-30 4678 Humboldt South of Orick, sand dunes. Comment
  HSC3518  Amsinckia intermedia Doris K. Kildale 1926-4-4 1727 Humboldt Above Big Lagoon Comment
  HSC4623  Anaphalis margaritacea J. W. Johnson 1961-8-17 1018 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  RSA1464  Anaphalis margaritacea E. R. Johnson 1929-08 1407 Humboldt Arcata Redwood Park 76 Comment
  RSA15556  Anaphalis margaritacea C. B. Wolf 1927-8-30 1230 Humboldt 2 miles S of Petrolia on the Matole River near point where the road crosses the river. Comment
  UC1199417  Anaphalis margaritacea Joseph P. Tracy 1937-7-29 15578 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC4618  Anaphalis margaritacea J. Rockwell 1962-11-12 151 Humboldt Near Coast Guard Station Comment
  HSC55633  Anemone deltoidea Overton, Butler 1979-7-24 9642 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  UC160913  Anemone deltoidea J. P. Tracy 1906-5-20 2467 Humboldt vicinity of Eureka (near Cutten and MacDonald Tract) 0 Comment
  UC634952  Anemone deltoidea H. L. Mason 1929-5-9 5280 Humboldt Bull Creek Flat Comment
  UC585998  Angelica genuflexa Joseph P. Tracy 1927-9-25 8380 Humboldt 2 mi s of Fields Landing (around Humboldt Bay, at Still Ranch); Northern Coast Region, Still Ranch 6 Comment
  UC1197381  Angelica genuflexa Joseph P. Tracy 1949-8-26 18509 Humboldt Happy Camp Mountain (In Trinity Summit Range, northeast of Hawkins Bar. 1280 Comment
  UC673053  Angelica genuflexa Joseph P. Tracy 1940-9-26 16725 Humboldt Eureka, near south city limits Eureka 6 Comment
  UC582633  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  HSC70545  Angelica tomentosa M. A. Baker 1980-7-22 3080 Humboldt Near Salmon Mtn. 1820 Comment
  CAS-BOT-BC271498  Anisocarpus madioides L. R. Abrams 1918-6-16 7139 Humboldt Willow Creek Comment
  CAS-BOT-BC271491  Anisocarpus madioides Doris K. Kildale 1927-5-17 3184 Humboldt Fish Creek near Garberville Comment
  UC582649  Antennaria rosea Joseph P. Tracy 1935-7-24 14169 Humboldt Trinity Summit (near Ranger Station) Trinity Summit 1828 Comment
  SEINET200721 Image available Antennaria rosea J. P. Tracy 1939-8-6 16397 Humboldt Shore of Big Lagoon 3 Comment
  UC175182  Anthemis arvensis Joseph P. Tracy 1913-5-21 4074 Humboldt Eureka Northern Coast Region 0 Comment
  SEINET2031154 Image available Anthemis cotula J. P. Tracy 1909-7-4 3011 Humboldt Immediate vicinity of Eureka Comment
  UC582630  Anthemis cotula Joseph P. Tracy 1933-7-3 12633 Humboldt Willow Creek; Trinity River Valley 152 Comment
  HSC79443  Anthoxanthum occidentale Kenneth Clark 1980-3-27 550 Humboldt 300 yards S of Dead Man's Gulch. 107 Comment
  UCD85343  Anthoxanthum occidentale Linda M. Barker 1976-2-22 1312 Humboldt Coast forest and dunes 3 miles west of Arcata. Comment
  SEINET11682981  Anthoxanthum occidentale K. S. Erdman 1970-1 4797 Humboldt Cal-Barrow Road 3 mi E of US 101 at E boundary of Prairie Creek State Park (Redwood N.P.) Comment
  BLMAR50  Anthoxanthum odoratum Brad Barr June, 1982 50 Humboldt King range, ridgetop of Johnny Jack ridge Comment
  RSA286350  Anthoxanthum odoratum R. F. Thorne 1974-7-29 45071 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  UC569482  Anthoxanthum odoratum H. S. Yates 1936-6-23 5853 Humboldt 2 mi e of mouth of Mad River 30 Comment
  UC1197334  Anthriscus caucalis Mrs. C. M. Wilder 1933-6-7 Humboldt Carlotta; near Beckwith Mill 60 Comment
  UC582470  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1933-8-30 13004 Humboldt Horse Mountain; Northern Coast Ranges 1066 Comment
  UC147926  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy Jul 1908 2790 Humboldt ridge between Van Duzen River and Mad River (near Low Gap, Humboldt and Trinity Counties); Northern Coast Ranges 914 Comment
  CAS-BOT-BC447667  Aphanes arvensis J. P. Tracy 1901-5-5 1072 Humboldt Immediate Vicinity of Eureka 152 Comment
  UC1198738  Aphanes occidentalis J. P. Tracy 1905-5-21 2184 Humboldt immediate vicinity Eureka 0 Comment
  HSC35591  Aquilegia formosa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2002 Humboldt At French Camp, Bald Hills Comment
  RSA668408  Aquilegia formosa Thomas W. Stark 1967-7-24 100 Humboldt 1/4 mile W of rt 101, 3 miles N of Trinidad Head. 91 Comment
  SDSU9935  Aquilegia formosa D. F. Howe 1962-5-21 3299 Humboldt 16.4 miles north of Garberville on #101. 61 Comment
  HSC55861  Aquilegia formosa var. truncata G. L. Clifton, Griswold 1979-7-25 10870 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC57667  Arabis holboellii var. retrofracta G. L. Clifton, Terry Griswold 1979-7-25 10851 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC79191  Arabis subpinnatifida D. K. Imper 1984-5-17 Humboldt Sims Mountain 1280 Comment
  CAS-BOT-BC128695  Arbutus menziesii Doris K. Kildale 1927-5-7 3109 Humboldt Elk Ridge near Eel Rock Comment
  HSC74651  Arbutus menziesii M. A. Baker 1980-5-17 1235 Humboldt Near Le Perron Peak 792 Comment
  HSC7601  Arbutus menziesii L. D. Napier 1962-5-20 19 Humboldt 10 mi. SE of Arcata on Fickle Hill. 534 Comment
  UC585947  Arctostaphylos Joseph P. Tracy 1934-3-11 13154 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC25213  Arctostaphylos canescens subsp. canescens L. B. Kildale 1928-4-29 5960 Humboldt Bald Mountain - at Lord-Ellis junction. Comment
  CAS-BOT-BC23727  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13139 Humboldt Vicinity of Trinidad 60 Comment
  CAS-BOT-BC23753  Arctostaphylos columbiana Doris K. Kildale 1927-1-30 2899 Humboldt Big Lagoon, coastal terrace Comment
  CAS-BOT-BC23768  Arctostaphylos columbiana Joseph P. Tracy 1935-2-9 13710 Humboldt Big Lagoon 30 Comment
  CAS-BOT-BC23814  Arctostaphylos columbiana C. Hart Merriam 1920-9-19 s.n. Humboldt Berry Mt. betweein Redwood Creek and Trinity River. Comment
  CAS-BOT-BC23821  Arctostaphylos columbiana Carl B. Wolf 1941-3-3 9995 Humboldt N. Coast Range, 4 mi. N. of Ettersburg on road to Honeydew. 304 Comment
  HSC39054  Arctostaphylos columbiana Linda M. Barker 1976-2-22 1319 Humboldt 3 mi. W of Arcata Comment
  JEPS38951  Arctostaphylos columbiana Joseph P. Tracy 1933-6-13 12582 Humboldt summit of barren ridge 1 mi s road from Hoopa westward to Bair's; Hoopa Mountain 1219 Comment
  LA42321  Arctostaphylos columbiana H. E. Parks; 1931-3-25 917 Humboldt near Patrick's Point Comment
  UC1198663  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13138 Humboldt vicinity of Trinidad Northern Coast Region 60 Comment
  UC397305  Arctostaphylos columbiana Joseph P. Tracy 1923-3-31 6169 Humboldt Table Bluff Northern Coast Region, around Humboldt Bay 60 Comment
  UC924266  Arctostaphylos columbiana H. S. Reed 1941-7-27 Humboldt coastal bluffs Orick Comment
  SEINET11998373  Arctostaphylos columbiana W. Knight, Knight, I. 1989-1 6477 Humboldt Big Lagoon Park, few yards N of entrance along US 101 15 Comment
  RSA13425  Arctostaphylos columbiana var. tracyi H. E. Parks 1931-12 4950 Humboldt Hobson's Trinidad. 61 Comment
  HSC101662  Arctostaphylos glandulosa subsp. glandulosa J. P. Smith, J. O. Sawyer 2011-4-23 13123 Humboldt Kings Peak Road near Shelter Cove. 523 Comment
  RSA632789  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27764 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  RSA632812  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27778 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  RSA633014  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27807 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  CAS-BOT-BC24369  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-4-3 15247 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC38833  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1930-5-12 9561 Humboldt McClellan Hill near Bridgeville 609 Comment
  JEPS38928  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-4-3 15246 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC102569  Arctostaphylos nevadensis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1556 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UCR32076  Arctostaphylos nevadensis David J. Keil 1983-7-2 17331 Humboldt Horse Mountain Summit SW of Willow Creek 1509 Comment
  CAS-BOT-BC40074  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1947-7-5 17787 Humboldt Trinity Summit, ridge top one mile west of Mud Springs. 1158 Comment
  CAS-BOT-BC46635  Arctostaphylos patula Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  CAS-BOT-BC27298  Arctostaphylos tracyi Joseph Prince Tracy 1923-2-18 6141 Humboldt Big Lagoon 6 Comment
  CAS-BOT-BC43988  Arctostaphylos uva-ursi Carl B. Wolf 1930-10-28 1779 Humboldt Samoa, Humboldt Bay 15 Comment
  CAS-BOT-BC43997  Arctostaphylos uva-ursi Harley P. Chandler 1901-5-1 1133 Humboldt Humboldt Bay 3 Comment
  HSC31470  Arctostaphylos uva-ursi Steve Selva 1974-8-28 91 Humboldt Approx. 5 mi. S of Arcata on the Samoa Peninsula Comment
  HSC33172  Arctostaphylos uva-ursi Thomas W. Nelson 1974-4-20 1181 Humboldt Elk Head, N of Trinidad Comment
  UC1225935  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17499 Humboldt Eureka 45 Comment
  UCD52155  Arctostaphylos uva-ursi Roman Gankin; W. R. Hildreth 1967-10-24 1146 Humboldt 1.7 miles s. of Samoa, on the Humboldt Peninsula. Humboldt County, California. Comment
  RSA337436  Arctostaphylos uva-ursi var. coactilis R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-5 35148 Humboldt Samoa Dunes. 3 Comment
  RSA741641  Arctostaphylos uva-ursi var. coactilis Patricia Wilder 1968-8-21 4409 Humboldt Northern coastal arm of Humboldt Bay, ca. 1 mile SW of Samoa, in sand dunes. 15 Comment
  SEINET11987161  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4071 Humboldt Strybing Arboretum, Golden Gate Park, San Francisco, orig. probably from near Samoa Comment
  SEINET11987311  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4200 Humboldt Strybing Arboretum, Golden Gate Park, San Francisco, orig. probably from Samoa Sand Spit Comment
  HSC76329  Arctostaphylos viscida Teresa Prendusi 1981-7-9 208 Humboldt Near Cedar Camp 1268 Comment
  CDA10101  Arctotheca prostrata Gordon Leppig 2000-4-9 1288 Humboldt Arcata. Union Street at 7th Street. South of Phillips House. Comment
  UC668115  Arenaria serpyllifolia subsp. serpyllifolia Joseph P. Tracy 1933-5-18 12192 Humboldt near Blue Lake; Mad River 15 Comment
  HSC33756  Armeria maritima subsp. californica A. Montalvo 1975-5-24 268 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC38495  Arnica cernua D. E. Anderson, J. P. Smith 1971-6-18 - 1088 Humboldt Horse Mtn. Comment
  HSC4712  Arnica cernua D. E. Anderson 1965-6-1 3753 Humboldt Horse Mountain. 1220 Comment
  HSC98121  Arnica cernua Cara Witte 2007-5-24 119 Humboldt Along National Forest 1. Approximately 1 mile south of intersection with 6N38 and 6N36. 1476 Comment
  HSC98683  Arnica discoidea Cara Witte 2008-7-11 882 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  HSC58301  Arnica diversifolia Overton, Butler 1979-8-2 12575 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  CAS-BOT-BC82647  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt Trinity Summit, Fir Woods near Corral Prairie 1524 Comment
  UC582489  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt near Corral Prairie ((Trinity Summit)); Trinity Summit 1524 Comment
  RSA46799  Arnica latifolia Doris K. Kildale 1926-4-25 1808 Humboldt Sugar Bowl Mt. near Hoopa Comment
  HSC98679  Arnica spathulata Cara Witte 2008-7-10 851 Humboldt Forest Service Road 4N06A. Cow Creek Ridge. 1.5 mile from National Forest 1. Under powerlines. 1239 Comment
  HSC8988  Arrhenatherum elatius J. A. Waller 1965-5-2 29 Humboldt Along Hwy. 96 near Willow Creek Comment
  HSC99892  Arrhenatherum elatius J. P. Smith 1994-6-12 11197 Humboldt Along West End Road, Arcata 12 Comment
  RSA0047108  Arrhenatherum elatius Rebecca Wenk, P. Hopkinson, M. Hammond, S. Spiegal 2008-6-6 832 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air miles north of Mattole Road, about 3 air miles west of Highway 101. 244 Comment
  UC180348  Arrhenatherum elatius Joseph P. Tracy 1913-6-10 4084 Humboldt near Bridgeville (Northern Coast Ranges, Rogers Ranch); Northern Coast Ranges, Rogers Ranch 243 Comment
  UCD135923  Arrhenatherum elatius R. Wenk; P. Hopkinson, M. Hammond, and S. Spiegal 2008-6-6 832 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air mile north of Mattole Road, about 3 air miles west of Highway 101. 243 Comment
  UCD56029  Arrhenatherum elatius Joseph P. Tracy 1950-6-15 18781 Humboldt 5 miles north of Harris. Near top of Mail Ridge. 1066 Comment
  HSC58342  Artemisia douglasiana Overton, Butler 1979-8-2 12667 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  RSA424565B  Artemisia douglasiana Thomas S. Elias, Barbara A. Elias 1987-8-26 10628 Humboldt Fernbridge, 0.5 mile S of Route 101; along West bank of Eel River, about 0.5 mile N of bridge Comment
  CAS-BOT-BC93860  Artemisia dracunculus A. A. Heller 1924-7-20 I 3865 Humboldt In sand along the Eel River at Phillipsville Comment
  CAS-BOT-BC90871  Artemisia pycnocephala Lester Rowntree 1937-8-15 s.n. Humboldt Little River Comment
  POM118567  Asarum caudatum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UC1198119  Asarum caudatum Joseph P. Tracy 1925-3-15 6942 Humboldt Blue Slide; on Van Duzen River 91 Comment
  HSC62996  Asarum caudatum David Wheeler 1979-5-9 100 Humboldt Humboldt State University campus, 1/4 mi. E of the dorms along Jolly Giant Creek Comment
  POM228362  Asarum caudatum C. C. Harris, S. K. Harris 1936-6-14 s.n. Humboldt On Yager Road from Carlotta 457 Comment
  SD58206  Asarum caudatum Lincoln Constance 1934-6-2 774 Humboldt Bull Creek Region, South Fork Eeel River, Bull Creek road to mouth of Bull Creek and up Bull Creek Comment
  SDSU2540  Asarum caudatum Harvey 1938-8-13 2242 Humboldt Humbolt State Redwood Park. Comment
  SEINET8189642 Image available Asarum caudatum H. E. Parks 1931-3-24 0918 Humboldt Near Orick Comment
  CAS-BOT-BC65944  Aspidotis densa L. R. Abrams 1918-6-15 7123 Humboldt Brannan Mt near Willow Creek 1371 Comment
  HSC1050  Aspidotis densa Francis Winter 1960-4-24 Humboldt 8 mi. NE of Redwood Creek Ranch 610 Comment
  HSC40010  Aspidotis densa Thomas W. Nelson, Jane Nelson 1976-7-1 2906 Humboldt Along ridge N of Bear Creek 1463 Comment
  UC1197707  Astragalus agnicidus Henry Tosten 1931-6-7 Humboldt 4 mi s Miranda (near Bear Buttes, on Tosten and Pierce Ranch); ; Tosten & Pierce Ranch, near Bear Buttes, S of Miranda, Humboldt Co. 762 Comment
  HSC64136  Astragalus umbraticus J. P. Smith, J. O. Sawyer, R. J. Cole 1977-7-2 3054 Humboldt Rd. 11N17 between Dagsaw Springs and Divide Lake 793 Comment
  HSC41197  Asyneuma prenanthoides Thomas W. Nelson, Jane P. Nelson 1977-7-1 3562 Humboldt Along N side of ridge between Bear and Blanket Creeks. 1494 Comment
  UCD66898  Asyneuma prenanthoides Esther Perry 1930-7-11 Humboldt Humboldt State Park. Comment
  UC370619  Athyrium filix-femina var. cyclosorum H. E. Parks June, 1925 3234 Humboldt Orick Comment
  HSC95384  Atriplex prostrata Andrea Pickart 2002-8-8 191 Humboldt Arcata Marsh at end of I st. 0 Comment
  HSC38380  Avena barbata Peter Sorensen 1976-5-29 Humboldt King Salmon Comment
  HSC9006  Avena fatua E. W. Styskel 1963-5-19 34 Humboldt 3 mi. SE of Korbel, on Snow Camp Rd. 290 Comment
  HSC5123  Baccharis douglasii W. L. Jepson 1932-7-24 16391 Humboldt Tooey Ranch, Garberville Comment
  UC164794  Baccharis glutinosa J. P. Tracy 1900-9-3 937 Humboldt immediate vicinity of Eureka 0 Comment
  JEPS32397  Baccharis glutinosa W. L. Jepson 1936-8-11 17867 Humboldt spot on mountainside, Philipsville South Fork Eel River Comment
  POM126120  Baccharis pilularis Joseph P. Tracy 1923-10-6 6565 Humboldt Eureka Comment
  UC673091  Baccharis pilularis Joseph P. Tracy 1940-10-17 16765 Humboldt Camp Grant, along Eel River, 2 to 5 mi e of South Fork Eel River 45 Comment
  HSC5118  Baccharis pilularis subsp. consanguinea J. W. Johnson 1961-9-4 1102 Humboldt Arcata; in the Hollow N of Dune 3 N Christenson Farm, Samoa Peninsula Comment
  HSC45103  Barbarea orthoceras R. Sutherland 1978-2-18 8 .18278 Humboldt S side of mouth of Mattole River 3 Comment
  HSC58642  Barbarea orthoceras G. L. Clifton, Terry Griswold 1979-7-31 11639 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  CAS-BOT-BC106355  Bellis perennis Doris K. Kildale 1926-3-20 1539 Humboldt Big Lagoon Comment
  CAS-BOT-BC106352  Bellis perennis Joseph P. Tracy 1937-6-20 15345 Humboldt Bear River, ten miles up stream from the mouth. 152 Comment
  RSA187521  Bellis perennis John H. Thomas 1966-3-19 11489 Humboldt Near the M. G. Goethe Grove in Prairie Creek Redwoods State Park near Highway 101, between Eureka and Crescent city. Comment
  CAS-BOT-BC48159  Bensoniella oregona R. Bacigalupi; L. Constance; Reid Moran; R. L. Rodriguez; Joe Tracy; Sherwin Carlquist 1951-6-14 3410 Humboldt Bald Mountain ridge - in bog, edge of forest at High Prairie, on long high ridge between Mad River and Redwood Creek 1066 Comment
  HSC75815  Bensoniella oregona Bill Copeland 1980-7-2 314 Humboldt Near Snow Camp Mtn. 1311 Comment
  JEPS8443  Bensoniella oregona Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3416 Humboldt edge of meadow at Snow Camp High Prairie (ridge between Mad River and Redwood Creek (Bald Mountain ridge)); btw Mad River and Redwood Crk (Bald Mountain), High Prairie 1432 Comment
  HSC74356  Berberis aquifolium var. repens Gail Newton 1980-6-17 228 Humboldt Near Onion Mtn. 1341 Comment
  CAS-BOT-BC75800  Berberis pinnata Doris K. Kildale 1927-7-17 3759 Humboldt Bug Creek. 792 Comment
  HSC53954  Bistorta bistortoides Griswold, Butler 1979-7-11 7004 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  CAS-BOT-BC66275  Blechnum spicant L. R. Abrams 1916-7-18 6103 Humboldt Arcata to Trinidad Comment
  JEPS35166  Blechnum spicant Milo S. Baker 1923-7-19 83 Humboldt canyon near Wilder's; Mattole River region, sw Humboldt Co. Comment
  CAS-BOT-BC14302  Boechera platysperma Joseph Prince Tracy 1932-7-12 10458 Humboldt Klamath Mountains. Trinity Summit. Head of Brett Hole. 1828 Comment
  SEINET12188876  Boisduvalia densiflora J. P. Tracy 1950-1 18843 Humboldt Cape Mendocino, S of point of the Cape, Davis Creek 30 Comment
  HSC7509  Bolboschoenus maritimus subsp. paludosus Paul Shields 1955-9-15 Humboldt 4 mi. NW of Arcata. Comment
  HSC49373  Boschniakia strobilacea Jimerson, J. Pageau 1979-6-15 580 Humboldt W of Forest Service Rd. 11N21 on the boundary between Sections 27 and 28 762 Comment
  HSC56002  Boykinia major Overton, Butler 1979-7-31 11453 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC420421  Boykinia occidentalis Mrs. M. H. Manning 1901-7-31 323 Humboldt Eureka Trail Comment
  HSC41849  Brassica rapa K. Irwin 1977-4-23 281 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  UC581795  Brickellia californica Joseph P. Tracy 1931-10-18 9736 Humboldt Camp Grant, along Eel River, 2-5 mi e of the South Fork Eel River 45 Comment
  UC620700  Brickellia californica S. K. Harris, Mrs. C. M. Wilder 1938-9-8 Humboldt below Blue Slide (bars on Van Duzen River); Van Duzen River Comment
  CAS-BOT-BC127680  Brickellia greenei Joseph P. Tracy 1935-7-30 14361 Humboldt Serpentine formatin, Salmon Summit 1767 Comment
  CAS-BOT-BC145429  Briza maxima Joseph P. Tracy 1930-7-6 8848 Humboldt Iaqua. 762 Comment
  CHSC31284  Briza maxima Mark Stopher 1980-5-16 68 Humboldt Along Hwy 101 near jct with Elk River, s of Eureka. Comment
  HSC33766  Briza maxima John S. Palmer 1975-5-24 368 Humboldt Off Samoa Blvd., across from boat landing Comment
  RSA86704  Briza maxima Joseph P. Tracy 1930-6-15 8758 Humboldt Alder Point Comment
  UC657696  Briza maxima P. B. Kennedy 1929-6-13 Humboldt Etterberg Comment
  UC180488  Briza minor Joseph P. Tracy 1914-5-14 4442 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  SEINET200692  Brodiaea capitata Joseph P. Tracy 1925-5-30 7028 Humboldt Laribee Valley. 701 Comment
  SEINET3884856  Brodiaea elegans Jan G. Cooper 1976-8-2 6 Humboldt Along road to Horse Mountain Ski Area turnoff of Hwy 299.; 0 Comment
  HSC81655  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson 1980-7-13 6058 Humboldt Along the rd. from Dinsmore to Anderson Ford-McKeown Ranch rd. 762 Comment
  CAS-BOT-BC484215  Brodiaea elegans subsp. elegans Milo S. Baker 1923-7-20 77 Humboldt Near Carlotta; North Coast Trip Comment
  SEINET200767  Brodiaea elegans subsp. elegans Joseph P. Tracy 1936-6-10 14925 Humboldt South Fork of Trinity River mountain slopes west of its mouth 305 Comment
  UCD125575  Bromus Laurel Goldsmith 2012-11-1 s.n. Humboldt Near Arcata. Humboldt Bay National Wildlife Refuge. Lanphere Dunes Unit, just outside main office. 6800 Lanphere Road. 5 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
  UC249867  Bromus carinatus var. carinatus Joseph P. Tracy 1923-6-18 6282 Humboldt Northern Coast Ranges, Bear River Ridge Bear River Ridge; Northern Coast Ranges, Bear River Ridge 304 Comment
  UCD59273  Bromus carinatus var. carinatus A. H. Murphy 1951-3-1 6 Humboldt 2 miles north of Petrolia. Comment
  HSC9287  Bromus diandrus R. D. Modafferi 1965-5-9 52 Humboldt 0.2 mi. N of Trinidad on Trinity St. 305 Comment
  CAS-BOT-BC155425  Bromus hordeaceus Doris K. Kildale 1926-4-30 1930 Humboldt Frutland Hills. Harris Road. Comment
  HSC32487  Bromus hordeaceus Bonnie Prange 1974-5-18 Humboldt Off Hwy. 299 at China Slide Comment
  UCD58817  Bromus hordeaceus A. H. Shunk 1923-7-12 s.n. Humboldt Briceland. Comment
  RSA34280  Bromus maritimus L. Larsen 1935-5-22 s.n. Humboldt Somoa [Samoa] Comment
  HSC70780  Bromus tectorum R. York 1980-5-17 546 Humboldt Near Le Perron Peak 1066 Comment
  UC526728  Bromus tectorum Joseph P. Tracy 1931-5-3 9349 Humboldt near Blue Lake (along Mad River); Mad River 15 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
  JEPS75417  Bromus vulgaris W. L. Jepson 1932-7-27 16422 Humboldt Bull Creek 106 Comment
  UC167232  Bromus vulgaris Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5363 Humboldt near Harris (North Coast Ranges); North Coast Ranges Comment
  UCD60237  Bromus vulgaris P. B. Kennedy 1923-8-2 s.n. Humboldt Bluff Creek, to Arcata. Comment
  UCD114943  Cakile maritima Linda M. Barker 1976-9-3 1694 Humboldt 3 miles west of Arcata. Comment
  HSC6608  Cakile maritima D. E. Anderson 1961-9-2 1770 Humboldt 3 mi. S of Cape Mendocino. 3 Comment
  CAS-BOT-BC185316  Calamagrostis foliosa Joseph P. Tracy 1936-6-9 14899 Humboldt Bank of Mattole River at bridge 3 miles east of Petrolia. 30 Comment
  CAS-BOT-BC185317  Calamagrostis foliosa Joseph Burtt Davy 1900-5-1 6602 Humboldt Hardy Creek. Comment
  HSC79357  Calamagrostis foliosa Kenneth Clark 1980-5-10 641 Humboldt Shelter Cove, 5' above mean high tide, E facing coastal bluff Comment
  UC1145051  Calamagrostis foliosa Joseph P. Tracy 1936-6-9 14899 Humboldt at bridge 3 mi e Petrolia (bluff bank of river); Mattole River 30 Comment
  UCD56953  Calamagrostis foliosa Freed W. Hoffman 1946-5-19 1737 Humboldt North Coast Ranges, rock in Mattole River. Comment
  JEPS72919  Calamagrostis nutkaensis Lincoln Constance 1934-6-25 923 Humboldt Englewood Bull Creek Region, South Fork Eel River (4 mi n of Dyerville and of n boundary of Humboldt Redwood Park, on Redwood Hwy) Comment
  UC673026  Calandrinia ciliata Joseph P. Tracy 1933-7-3 12638 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC144080  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1909-5-23 2974 Humboldt 4 mi se Eureka (at Connick Claim) 0 Comment
  UC144083  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1909-6-13 2995 Humboldt opposite Blue Lake (in Mad River Valley); Northern Coast Ranges, Mad River Valley 30 Comment
  CAS-BOT-BC80381  Calocedrus decurrens Carl D. Duncan 1920-9-27 s.n. Humboldt near Hoopa Comment
  CAS-BOT-BC488459  Calochortus amabilis Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  CHSC32848  Calochortus tolmiei Lora L. Anderson 1981-4-25 11 Humboldt Ca. 1.5 mi ne of Redwood Creek 4.5 mi n of 299w 18 mi ne of Arcata. 228 Comment
  HSC102535  Calochortus tolmiei M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1521 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC74278  Calochortus tolmiei M. A. Baker 1980-5-23 1395 Humboldt Near Buck Mtn. 1524 Comment
  HSC99312  Calochortus tolmiei M. A. Baker 1980-6-7 1813 Humboldt Near Brush Mtn. 1128 Comment
  UC667125  Calochortus tolmiei Joseph P. Tracy 1927-5-8 7960 Humboldt Phillipsville 121 Comment
  CAS-BOT-BC494365  Calochortus tolmiei H. C. Cantelow 1941-4-26 3949 Humboldt Rd. to Cape Mendocimo 12 mi. S.W. of Ferndale. Comment
  HSC26870  Calochortus tolmiei Clifton Raymond Chesbrough 1973-6-19 94 Humboldt 0.5 mi. N of College Cove along coast Comment
  RSA168945  Calochortus vestae Joseph P. Tracy 1950-6-23 18868 Humboldt Dobbyn Creek, 3 miles northeast of Alderpoint. 213 Comment
  UC1196205  Caltha biflora Joseph P. Tracy 1932-7-16 10638 Humboldt At Corral Prairie, Trinity Summit; Klamath Mountains. 1524 Comment
  CAS-BOT-BC275365  Calycadenia truncata var. truncata Doris K. Kildale 1927-7-3 3656 Humboldt Willow Creek Flat 152 Comment
  RSA381907  Calypso bulbosa Pearl Ryan 1917-6-1 s.n Humboldt Hoopa Comment
  HSC17640  Calyptridium monospermum Doris K. Kildale 1925-8-16 1227 Humboldt Trinity Summit 1829 Comment
  HSC32094  Calystegia occidentalis subsp. occidentalis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5706 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC97957  Calystegia occidentalis subsp. occidentalis Cara Witte, Michael Scott 2007-6-22 350 Humboldt Board Camp Mountain, jeep trail between Tri Board Camp and Fork Camp 1565 Comment
  HSC40013  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson, Jane Nelson 1976-7-1 2914 Humboldt N side of Mt. Lassic (Signal Peak) 1738 Comment
  HSC46384  Calystegia silvatica subsp. disjuncta Catherine Chin 1978-8-19 107 Humboldt 11th and B St., Arcata Comment
  RSA394825  Calystegia soldanella E. A. Purer 1932-7-27 4140 Humboldt Samoa Comment
  RSA603171  Calystegia soldanella D. D. Keck, Jens Clausen 1935-6-16 3384 Humboldt Mouth of Little River. Comment
  RSA12420  Camassia leichtlinii subsp. suksdorfii Carl B. Wolf 1934-7-2 5873 Humboldt At small lake at Snow Camp (Mtns E of Korbel) 1372 Comment
  CAS-BOT-BC493385  Camassia quamash subsp. linearis Volney Rattan 1878-1-1 s.n. Humboldt unspecified Comment
  JEPS61544  Camassia quamash subsp. quamash Joseph P. Tracy 1930-7-17 9000 Humboldt South Fork Mountain, at McKay Camp South Fork Mountain; , McKay Camp 1676 Comment
  HSC12706  Camissonia cheiranthifolia Jana Kattenhorn 1970-10-7 10 Humboldt McKinleyville Dunes Comment
  HSC103972  Camissonia cheiranthifolia subsp. cheiranthifolia C. Reynolds 2015-3-16 20 Humboldt Along Freshwater Beach, north of the Kuchel Visitor Center 1 Comment
  HSC40377  Camissonia strigulosa Linda M. Barker 1976-4-30 1406 Humboldt 3 mi. W of Arcata Comment
  CAS-BOT-BC160235  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Carl B. Wolf 1927-8-29 1221 Humboldt Seacoast, Devil's Gate, south of Cape Mendocino Comment
  CAS-BOT-BC160241  Camissoniopsis cheiranthifolia subsp. cheiranthifolia J. P. Tracy 1909-7-18 3017 Humboldt Sand hills of Ocean Beach at Samoa, opp. Eureka Comment
  UC602534  Campanula prenanthoides Joseph P. Tracy 1934-8-23 13600 Humboldt Willow Creek Canyon Northern Coast Ranges 457 Comment
  SEINET10939002  Campanula prenanthoides Tracy 1934-8-23 TRACY 13600 Humboldt Willow Creek Canyon 457 Comment
  JEPS11738  Campanula scouleri W. L. Jepson 1902-7-30 2128 Humboldt Three Creeks to Redwood Creek 914 Comment
  SEINET10463751  Campanula scouleri James P. Smith 1977-7-3 Smith, Jr. 9250 Humboldt Six Rivers National Forest: along the road to Onion Lake, just above Blue Lake. T10N R4E Sec. 15 975 Comment
  SEINET10463756  Campanula scouleri Chesnut 1888-6-19 CHESNUT s.n. Humboldt Pilot Ridge Comment
  HSC103887  Cardamine angulata Dana York, Laura Julian, Hilary Sundeen, Jenny Lynn Hutchinson 2014-5-14 3231 Humboldt Redwood State and National Parks; in the Lost Man Creek drainage, along a dirt road, 1.2 air-km E of State Route 101, just above the south bank of Lost Man Creek. 24 Comment
  HSC91613  Cardamine californica E. Mackey 1987-3-1 Humboldt Patrick's Point State Park, by trail to Palmer's Point beach Comment
  UC1199190  Cardamine californica Joseph P. Tracy 1913-3-30 4031 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  HSC42014  Cardamine oligosperma M. A. Baker 1977-4-23 172 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC6645  Cardamine oligosperma Lincoln Constance 1934-5-31 745 Humboldt S Fork of the Eel River, Bull Creek Flat, along Bull Creek, W boundary of park to Grasshopper Peak, N side of creek Comment
  POM118630  Cardamine oligosperma Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC1199203  Cardamine oligosperma Joseph P. Tracy 1918-5-1 4898 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UCR121762  Cardionema ramosissimum George K. Helmkamp, E. A. Helmkamp 2001-7-8 6997 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  HSC100466  Carex Carl C. Marshall May 1886 207 Humboldt Tilley's Place. Comment
  CAS-BOT-BC17794  Carex amplifolia Joseph Prince Tracy 1935-6-23 13986 Humboldt French Camp Ridge. 1066 Comment
  UC1115811  Carex aquatilis var. dives Joseph P. Tracy 1938-7-6 16024 Humboldt Big Lagoon 6 Comment
  CAS-BOT-BC18073  Carex athrostachya Joseph Prince Tracy 1934-7-18 13426 Humboldt North Coast Ranges. Grouse Mountain. 1524 Comment
  JEPS63598  Carex barbarae Lincoln Constance 1934-6-7 772 Humboldt Cabin Creek Bridge, on Bull Creek Road Comment
  RSA246855  Carex bolanderi Robert F. Thorne, Percy C. Everett 1965-8-5 35136 Humboldt Mt. Chamisal: below summit. 747 Comment
  CAS-BOT-BC19439  Carex bolanderi Doris K. Kildale 1927-6-25 3563 Humboldt Fearren's Ranch between Thorn [Whitethorn] and Shelter Cove. Comment
  RSA88693  Carex bolanderi F. W. Peirson 1932-7-7 10261 Humboldt Willow Creek, a few miles above the town of that name. Comment
  UC249736  Carex buxbaumii Joseph P. Tracy 1924-7-13 6724 Humboldt Big Lagoon Northern Coast Ranges, Big Lagoon 6 Comment
  UC1586920  Carex canescens Juha Pykala and D. H. Norris 1987-6-5 1435 Humboldt e Maple Creek; Lake Prairie 1050 Comment
  HSC98942  Carex concinnoides Cara Witte 2007-5-26 660 Humboldt National Forest 1. 1/2 mile south of intersection with Forest Service Roads 6N38 and 6N36. 1458 Comment
  CAS-BOT-BC34977  Carex densa Joseph Prince Tracy 1935-5-25 13855 Humboldt Fort Seward. 106 Comment
  CAS-BOT-BC34980  Carex densa Joseph Prince Tracy 1927-5-30 8095 Humboldt Northern Coast Ranges.Garberville. 121 Comment
  JEPS80029  Carex densa Joseph P. Tracy 1925-5-30 7048 Humboldt McClellan Mountain Northern Coast Ranges, McClellan Mountain 822 Comment
  UC562257  Carex densa Joseph P. Tracy 1936-6-3 14847 Humboldt Trinity River Valley at Willow Creek 152 Comment
  UC1103104  Carex deweyana subsp. leptopoda Joseph P. Tracy 1920-5-18 5325 Humboldt 5 mi above Dyerville (South Fork); Eel River 152 Comment
  HSC96492  Carex echinata subsp. phyllomanica Gordon Leppig 1998-6-8 798 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  CHSC42988  Carex exsiccata L. P. Janeway 1987-7-30 2532 Humboldt At Dry Lagoon. Middle of lagoon. 3 Comment
  HSC76840  Carex exsiccata L. P. Janeway 1982-8-7 114 Humboldt Dry Lagoon 3 Comment
  SEINET7558331 Image available Carex exsiccata L. P. Janeway 2003-7-30 7941 Humboldt Grouse Mountain Quad, High North Coast Ranges. On the southwest side of Titlow Hill Road 1.1 km south of Cold Springs. 1426 Comment
  UCR52379  Carex exsiccata L. P. Janeway 1982-6-12 4 Humboldt Dry Lagoon 3 Comment
  SEINET7827267 Image available Carex fracta J. P. Tracy 1950-7-2 18963 Humboldt "Fern Spring;" Happy Camp Mountain (Trinity Summit Range, 6 mi NE of Hawkins Bar.) Comment
  UC562280  Carex geyeri Joseph P. Tracy 1933-7-11 12662 Humboldt Horse Mountain 1432 Comment
  UC562713  Carex globosa Joseph P. Tracy 1929-6-3 8605 Humboldt Mouth of East Fork Northern Coast Ranges, Willow Creek Canyon 487 Comment
  CAS-BOT-BC146592  Carex gynodynama Joseph P. Tracy 1927-5-8 7969 Humboldt Phillipsville; facing South Fork of Eel River 121 Comment
  HSC96578  Carex gynodynama Gordon Leppig, Todd Treadwell 2005-6-8 2249 Humboldt Blue Slide Creek watershed, Pacific Lumber Co. land. 245 Comment
  UC197207  Carex gynodynama Joseph P. Tracy 1908-6-7 2620 Humboldt Northern Coast Ranges, Butler Valley. Comment
  UC197210  Carex gynodynama Joseph P. Tracy 1912-7-25 3821 Humboldt Northern Coast Ranges, Kneeland Prairie. Comment
  CAS-BOT-BC21021  Carex hendersonii W. R. Dudley 1899-6-19 s.n. Humboldt Scotia. Comment
  HSC70353  Carex hendersonii M. A. Baker 1980-6-7 1862 Humboldt Near Ammon Creek 732 Comment
  RSA362584  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Bull Creek, at South Fork of the Eel River Comment
  CHSC90283  Carex hoodii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8534 Humboldt North Coast Ranges. Along Forest Road 13N01 18 miles from junction with State Route 96. 1066 Comment
  CHSC90286  Carex laeviculmis Thomas W. Nelson; Jane P. Nelson 1987-6-11 8587 Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  HSC98934  Carex laeviculmis Cara Witte 2007-7-11 480 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1391 Comment
  UC562283  Carex laeviculmis Joseph P. Tracy 1929-7-4 8607 Humboldt French Camp Ranch Northern Coast Ranges 1066 Comment
  CHSC93262  Carex lenticularis var. impressa Thomas W. Nelson; Jane P. Nelson 1987-6-11 8583 Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  CAS-BOT-BC28501  Carex lenticularis var. limnophila Robert F. Thorne 1965-9-19 35461 Humboldt Freshwater Lagoon S of Orick. 3 Comment
  CAS-BOT-BC28505  Carex lenticularis var. limnophila Carl B. Wolf 1927-8-22 788 Humboldt Big Lagoon Comment
  HSC73725  Carex leporinella M. A. Baker 1980-7-22 3072 Humboldt Near Salmon Mtn. 1820 Comment
  SEINET10817483  Carex leptopoda David Castaner 1984-5-29 Castaner 8069 Humboldt Entrance Road to Cal-Barrel area. Comment
  CHSC90270  Carex lyngbyei Thomas W. Nelson; Jane P. Nelson 1987-4-27 8435 Humboldt North Coast Ranges. Along estuary to Cooper Gulch south side of street crossing. 1 Comment
  UC303015  Carex mendocinensis Joseph P. Tracy 1926-6-20 7632 Humboldt Northern Coast Ranges. Horse Mountain. Comment
  UC562730  Carex mendocinensis Joseph P. Tracy 1933-7-25 12873 Humboldt North Coast Ranges, Grouse Mountain. Comment
  CHSC84738  Carex microptera L. P. Janeway 2003-7-26 7920 Humboldt High North Coast Ranges. South side (above) Road 5N04, 0.5 km northeast of the top of Grouse Mountain. 1554 Comment
  HSC102157  Carex microptera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1065 Humboldt Patterson Meadows 1555 Comment
  HSC73962  Carex multicaulis Gail Newton 1980-6-7 126 Humboldt Near Brush Mtn. 1128 Comment
  HSC26097  Carex multicostata J. O. Sawyer 1970-6-27 2303 Humboldt 1829 Comment
  CAS-BOT-BC119543  Carex nudata L. P. Janeway 1983-7-23 436 Humboldt Willow Creek quad. Along the W edge of Trinity River near the Willow Creek Airstrip. 137 Comment
  RSA275388  Carex nudata Thomas W. Nelson, Jane P. Nelson 1977-5-30 3407 Humboldt Growing on rocky alluvium in Mad River at Anderson s Ford north of Dinsmore on the McKeown Ranch. 610 Comment
  UC1103621  Carex nudata Joseph P. Tracy 1933-5-18 12194 Humboldt 6 mi W of Blue Lake (Mad River) 15 Comment
  CHSC88893  Carex obnupta L. P. Janeway; B. Castro 2004-9-10 8319 Humboldt North Coast. South Spit of Humboldt Bay, 3.6 km north-northeast of Table Bluff Lighthouse site; between South Spit Road and the Humboldt Bay mudflats. 2 Comment
  CAS-BOT-BC119382  Carex obnupta Joseph Prince Tracy 1934-7-13 13381 Humboldt Arcata Bottom. 15 Comment
  CAS-BOT-BC119385  Carex obnupta W. R. Dudley 1899-6-1 s.n. Humboldt Peninsula opposite Eureka. Comment
  HSC7062  Carex obnupta J. W. Johnson 1961-4-19 1248 Humboldt Arcata, along Miller Lane, Miller Farm, Samoa Peninsula Comment
  HSC76819  Carex obnupta L. P. Janeway 1982-8-7 112 Humboldt Along Prairie Creek, ~5 mi. N of Prairie Creek Campground along Hwy. 101 183 Comment
  UC1041076  Carex obnupta J. W. Congdon 1904-7-23 Humboldt Peninsula Eureka Eureka Comment
  HSC102163  Carex pachystachya M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1073 Humboldt Patterson Meadows 1555 Comment
  UC562637  Carex pachystachya Joseph P. Tracy 1936-7-5 15043 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC45951  Carex pachystachya J. P. Smith, Steve Selva 1970-6-30 4108 Humboldt Comment
  UC709318  Carex pachystachya Joseph P. Tracy 1938-6-15 15934 Humboldt vicinity Carlotta 30 Comment
  HSC37967  Carex pansa P. Sorensen 1976-6-16 Humboldt Humboldt Bay, Woodley Island Comment
  UC194809  Carex praticola Joseph P. Tracy 1914-5-3 4421 Humboldt Eureka Northern Coast Region 0 Comment
  SEINET7572538 Image available Carex preslii Ray Tallent 1987-8-11 895 Humboldt Six Rivers National Forest, road S of Horse Mtn. 1390 Comment
  RSA88833  Carex subbracteata Alice Eastwood, John Thomas Howell 1937-6-23 4808 Humboldt Little Van Duzen River. Comment
  CAS-BOT-BC116942  Carex subbracteata Joseph Prince Tracy 1935-7-27 14296 Humboldt Trinity Summit, open places at McKay Prairie. 1584 Comment
  HSC44031  Carex subfusca Thomas W. Nelson, Jane P. Nelson 1977-9-3 3728 Humboldt Along creek draining N end of pond above Alder Springs 1137 Comment
  CAS-BOT-BC115569  Carex tumulicola Alice Eastwood; John Thomas Howell 1937-6-22 4745 Humboldt Near Blocksburg Comment
  UC562337  Carex tumulicola Joseph P. Tracy 1930-7-10 8859 Humboldt Brannan Mountain Northern Coast Ranges 1219 Comment
  HSC26451  Carpobrotus chilensis T. O. Osborne 1970-5-17 22 Humboldt Sugarloaf Rock, Cape Mendocino. 61 Comment
  UC1353974  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt ca 2 mi w Dyerville (on ridge 1 mi n above Bull Creek); Lukes Prairie Comment
  CAS-BOT-BC281884  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt Luke's Prairie on ridge 1 mile N above Bull Creek, ca 2 miles W of Dyerville Comment
  RSA167257  Castilleja affinis Joseph P. Tracy 1950-6-15 18799 Humboldt Mail Ridge, north of Harris 7 miles 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
  JEPS21129  Castilleja affinis subsp. litoralis Myrtle Paulson 1918-4-28 Humboldt Eureka Comment
  UC201381  Castilleja affinis subsp. litoralis Joseph P. Tracy 1918-7-21 5081 Humboldt Humboldt Hill; Northern Coast Ranges, Humboldt Bay Region 152 Comment
  HSC36100  Castilleja ambigua subsp. humboldtiensis Tom Mills 1974-5-12 Humboldt Beside Humboldt Bay near Bayside Cut-off Comment
  OBI9388  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1938-7-15 16068 Humboldt Mouth of Eel River 3 Comment
  JEPS8683  Castilleja applegatei subsp. martinii Joseph P. Tracy 1927-5-14 8001 Humboldt near South Fork; Trinity River Valley 182 Comment
  UC902257  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1948-9-5 18191 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  HSC20881  Castilleja exserta subsp. latifolia J. W. Johnson 1961-9-6 1106 Humboldt Arcata, Christenson Farm, Samoa Peninsula Comment
  RSA183597  Castilleja franciscana D. E. Anderson 1962-7-10 2244 Humboldt Luffenholtz Beach, about 2 miles south of Trinidad along old 101 highway. Comment
  RSA15566  Castilleja litoralis Carl B. Wolf 1927-8-29 1195 Humboldt 7 miles south of Ferndale and Capetown, Bear River Ridge, Mt. Glen. Comment
  RSA167244  Castilleja litoralis Joseph P. Tracy 1950-6-8 18749 Humboldt Bear River Ridge, south slope near Capetown. Cape Ridge. One mile east of Cape Mendocino. 152 Comment
  HSC56041  Castilleja miniata G. L. Clifton, Griswold 1979-7-31 11608 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC56065  Castilleja miniata G. L. Clifton, Griswold 1979-7-31 11713 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC71608  Castilleja pruinosa Gail Newton 1980-6-16 198 Humboldt Near Onion Mtn. 1280 Comment
  HSC41587  Castilleja pruinosa Thomas W. Nelson, Jane P. Nelson 1977-7-30 3656 Humboldt Along S side of ridge between the forks of Black Lassic Creek 1646 Comment
  HSC49985  Castilleja pruinosa M. A. Baker 1979-6-7 785 Humboldt N bank of road to Snow Mtn. 610 Comment
  JEPS103930  Castilleja pruinosa T. I. and F. M. Chuang 1991-7-8 7872 Humboldt 2.8 mi NE of Gasquet, on Old Gasquet Toll Rd. Comment
  RSA254787  Castilleja pruinosa Thomas W. Nelson 1974-5-30 1349 Humboldt Growing along the Hoopa-Redwood Valley Road. Comment
  JEPS83014  Castilleja subinclusa subsp. franciscana L. R. Heckard 1984-5-14 6156 Humboldt 2 mi s Phillipsville (just n of Freeway 101, on Avenue of the Giants) 83 Comment
  CAS-BOT-BC49318  Ceanothus cuneatus Doris K. Kildale 1927-7-22 3833 Humboldt Lasseck's Peaks 1661 Comment
  UC176125  Ceanothus cuneatus var. cuneatus Joseph P. Tracy 1913-6-17 4173 Humboldt near summit of Buck Mt. North Coast Ranges 1676 Comment
  CAS-BOT-BC50055  Ceanothus incanus W. R. Dudley 1899-6-20 s.n. Humboldt Near Eel River in woods Comment
  HSC37052  Ceanothus incanus R. Sutherland 1975-6-3 1 .3675 Humboldt 396 Comment
  JEPS42412  Ceanothus incanus Lincoln Constance 1934-6-15 884 Humboldt summit of Grasshopper Peak South Fork Eel River Comment
  HSC55349  Ceanothus integerrimus Griswold, Butler 1979-7-12 7255 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  UC18348  Ceanothus integerrimus Harley P. Chandler 1901-6-1 1338 Humboldt Campbell Creek North Coast Ranges (Hupa Indian Reservation,) 152 Comment
  UC502957  Ceanothus lemmonii Joseph P. Tracy 1929-4-28 8551 Humboldt Willow Creek Trinity River Valley, Northern Coast Ranges 152 Comment
  HSC37606  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-7-11 7 .11775 Humboldt Along county rd. 259 Comment
  CAS-BOT-BC52045  Ceanothus prostratus Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC23295  Ceanothus pumilus D. E. Anderson, J. P. Smith 1971-7-6 - 1305 Humboldt Horse Mtn. 10 mi W of Willow Creek 1524 Comment
  UC170018  Ceanothus pumilus Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5647 Humboldt Hoopa Mountain North Coast Ranges, Hoopa Mountain Comment
  CAS-BOT-BC52217  Ceanothus thyrsiflorus Doris K. Kildale 1926-3-20 1626 Humboldt Liscom Hill, Lower Mad River 30 Comment
  HSC18335  Ceanothus thyrsiflorus W. K. Parks Jun 1932 1357 Humboldt Trinidad Comment
  RSA77350  Ceanothus thyrsiflorus F. W. Peirson 1941-7-28 13106 Humboldt at the Hwy Observation point about 1 mile S of Orick Comment
  UCSC000467  Ceanothus thyrsiflorus A. E. Wieslander 1931-5-21 209 Humboldt China Flat, Kneeland Comment
  CAS-BOT-BC52863  Ceanothus velutinus Volney Rattan 1878-1-1 s.n. Humboldt unspecified Comment
  HSC43224  Ceanothus velutinus R. Sutherland 1975-12-6 2 .61275 Humboldt 305 Comment
  UC1198027  Ceanothus velutinus Joseph P. Tracy 1913-7-20 4374 Humboldt Near Three Creeks 1066 Comment
  UC164836  Ceanothus velutinus Joseph P. Tracy 1911-7-9 3455 Humboldt along Willow Creek (tributary of Trinity River, near its mouth); Northern Coast Ranges, along Willow Creek 182 Comment
  HSC100907  Ceanothus velutinus Carl C. Marshall Jun 1886 257 Humboldt Ridges. 915 Comment
  UC673087  Centaurea calcitrapa Joseph P. Tracy 1940-10-17 16760 Humboldt near Dyerville (South Fork Station) 45 Comment
  SEINET200850  Centaurea calcitrapa J. P. Tracy 1940-10-17 16760 Humboldt South Fork Station near Dyerville 46 Comment
  CDA15840  Centaurea diffusa P. Haggard 1999-10-18 PDR 1170400 Humboldt North Coast; near Blue Lake. 0 Comment
  UC1222950  Centaurea melitensis Joseph P. Tracy 1943-11-28 17455 Humboldt bar at mouth of Van Duzen Eel River; , Van Duzen Comment
  CDA7305  Centaurea nigra E. C. Whitney 1968-9-6 Humboldt Holmes Flat. Rutledge property. 0 Comment
  UC1198613  Centunculus minimus J. P. Tracy 1905-5-21 2182 Humboldt immediate vicinity of Eureka 0 Comment
  HSC48979  Cephalanthera austiniae Rudolf W. Becking 1979-7-15 Humboldt Fish Lake Comment
  CAS-BOT-BC384898  Cerastium arvense Doris K. Kildale 1927-5-15 3245 Humboldt Petrolia, Mattole River Comment
  UC1198319  Cerastium arvense Joseph P. Tracy 1927-5-15 8049 Humboldt ridge w. of Hoopa Valley (up Supply Creek); Supply Creek 304 Comment
  UC161007  Cerastium fontanum subsp. vulgare Joseph P. Tracy 1907-5-20 2561 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  SFV18532  Cerastium glomeratum H. Barnes 2002-5-4 39 Humboldt McKinleyville. Hiller Park. Hammond Trail, 0.2 km north from parking lot. 25 Comment
  CAS-BOT-BC179481  Cercis occidentalis Henry M. Pollard 1956-8-10 s.n. Humboldt Old Klamath River road near Harley Place, Orleans. Comment
  HSC95786  Chamaecyparis lawsoniana Will Ferrand 2002-4-27 32 Humboldt 1.0 mi. E of intersection of Hwy. 299 and Willow Creek Rd. 198 Comment
  UC1198974  Chamaesyce serpyllifolia Joseph P. Tracy 1931-10-12 9728 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  HSC70561  Cheilanthes gracillima M. A. Baker 1980-7-19 3028 Humboldt Near Bret Hole. 1814 Comment
  HSC91610  Chenopodium album E. Mackey 1987-8-10 Humboldt Patrick's Point State Park, by trail down to Agate Beach Comment
  POM225759  Chenopodium botrys P. A. Munz 1936-8-9 14334 Humboldt Williams Redwood Grove, south fork of Eel River. Comment
  RSA246908  Chenopodium botrys R. F. Thorne, P. Everett 1965-8-8 35263 b Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  UC1409178  Chimaphila umbellata Robert F. Thorne and P. Everett 1965-8-5 35145 Humboldt King Mt. 1219 Comment
  SBBG83414  Chimaphila umbellata R. Gankin 1965-8-5 546 Humboldt Kings Mtn Rd, 2.2 mi E of rd end, Pacific Range Wilderness Area Comment
  SFV18491  Chimaphila umbellata C. Lee 2002-4-27 32 Humboldt USFS Road 13, about 3 miles northwest of intersection with Highway 96. Comment
  UCD117385  Chimaphila umbellata Roman Gankin 1965-8-5 546 Humboldt On Kings Mountain Road, 2.2 miles east of road end, Pacific Range Wilderness Area. Comment
  HSC100553  Chlorogalum pomeridianum Carl C. Marshall Jul 1886 260 Humboldt Throughout the Coast Range, Humboldt Bay. Comment
  CAS-BOT-BC237976  Chloropyron maritimum subsp. maritimum J. D. Ackerman 1975-8-2 615 Humboldt Humboldt Bay, across from Murray Field (Eureka Airport). Near railroad tracks and hwy. 101 Comment
  CDA7412  Chrysanthemum segetum E. C. Whitney 1964-6-3 Humboldt Renus Ohman property, Rohnerville. 0 Comment
  HSC91893  Chrysolepis chrysophylla Susan H. Bicknell 1987-8-29 Humboldt Patrick's Point State Park, near Penn Creek Comment
  RSA46774  Chrysolepis chrysophylla Doris Kildale Gillespie 1937-8-26 15366 Humboldt Christmas Prairie. Comment
  UC1187352  Chrysolepis chrysophylla var. chrysophylla R. G. Skolmen 1960-10-27 11 Humboldt 3 mi ese Big Hill, Hoopa Valley Indian Reservation 1188 Comment
  UC1196374  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1913-7-13 4357 Humboldt Patrick's Point; Northern Coast Ranges 30 Comment
  HSC36884  Chrysosplenium glechomifolium J. P. Smith, Thomas W. Nelson 1976-4-27 8616 Humboldt Brazil Ranch E of Hwy. 101 near College of the Redwoods Comment
  HSC8634  Cicuta douglasii D. E. Anderson 1961-9-30 1850 Humboldt Blue Lake Comment
  JEPS12245  Cicuta douglasii Joseph P. Tracy 1927-9-25 8379 Humboldt 2 mi s of Fields Landing (near Still Ranch) 6 Comment
  HSC39165  Circaea alpina subsp. pacifica D. E. Anderson, J. P. Smith 1971-6-28 - 1238 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  UCR131740  Circaea alpina subsp. pacifica C. B. Wolf 1937-8-13 09253 Humboldt North Coast Range, 11 miles east of Hoopa Valley on new road toward Trinity Summit 1584 Comment
  UC1198516  Circaea alpina subsp. pacifica Joseph P. Tracy 1937-6-27 15381 Humboldt w. mouth of S. Fork Trinity R. (Four Mile Creek, on Friday Ridge Rd.); Four Mile Creek 609 Comment
  CDA20074  Cirsium arvense E. Finley 2002-10-9 PDR 1035511 Humboldt Northwestern California; Hwy 36 at MM 31.08 E-bound. 0 Comment
  HSC98914  Cirsium arvense Cara Witte 2008-8-16 1025 Humboldt Ammon Ridge Road. Approximately 1/4 mile east of intersection with National Forest 1. 1548 Comment
  RSA424924  Cirsium arvense R. D. Goeden, D. W. Ricker 1987-9-2 15 Humboldt Loleta, at bay on Cannibal Road. 3 Comment
Read comments
Apr 8 2011
  HSC40773  Cirsium brevistylum Thomas W. Nelson 1976-7-9 3014 Humboldt Along S.R. 36 just E of Heley Creek Comment
  HSC93524  Cirsium douglasii var. douglasii Gordon Leppig 1998-6-1 879 Humboldt Horse Mtn., Titlow Hill Rd. 1220 Comment
  RSA0070608  Cirsium douglasii var. douglasii Thomas W. Nelson 1976-7-9 2987 Humboldt Along 1S07 just west of summit. 1585 Comment
  RSA0070609  Cirsium douglasii var. douglasii Joseph P. Tracy 1924-7-6 6717 Humboldt Near Ruby Creek, on the Willow Creek Highway. 610 Comment
  BLMAR107  Cirsium occidentale var. candidissimum Jennifer Anthony-Wheeler 1994-7-26 107 Humboldt Lacks Creek, growing on dry exposed banksurrounded by doug fir 1158 Comment
  CAS-BOT-BC285530  Cirsium occidentale var. candidissimum Henry M. Pollard 1948-7-29 s.n. Humboldt Between Orleans and Woodson Mines Comment
  UC204828  Cirsium occidentale var. venustum Joseph P. Tracy 1918-7-3 4988 Humboldt Wilder Ridge Northern Coast Ranges, Wilder Ridge 762 Comment
  UCD144226  Cirsium occidentale var. venustum B. Villegas 1998-8-5 s.n. Humboldt near Berry Summit on Titlow Hill Road, 3.9 miles south of Highway 229. Comment
  CAS-BOT-BC288712  Cirsium remotifolium Joseph P. Tracy 1930-7-21 8887 Humboldt Bear River RIdge Comment
  CAS-BOT-BC288715  Cirsium remotifolium L. R. Abrams 1916-7-18 6081 Humboldt Arcata to Trinidad Comment
  UC1223062  Cirsium remotifolium Joseph P. Tracy 1941-8-12 16976 Humboldt 2 mi s of town of Field's Landing 6 Comment
  HSC98726  Cirsium remotifolium var. odontolepis Cara Witte 2008-7-2 806 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  HSC91920  Cirsium vulgare E. Mackey 1986-10-7 Humboldt Patrick's Point State Park, near old road in dune area Comment
  UC1196991  Clarkia amoena Joseph P. Tracy 1925-5-30 7029 Humboldt Laribee Valley Northern Coast Ranges 701 Comment
  UCD104030  Clarkia amoena James P. Smith 1973-5-26 6827 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  CAS-BOT-BC160954  Clarkia amoena subsp. amoena Doris K. Kildale 1928-6-17 5233 Humboldt Miranda, south fork of Eel River Comment
  CAS-BOT-BC164180  Clarkia concinna Harley P. Chandler 1901-6-1 1325 Humboldt Hupa Indian Reservation 152 Comment
  CAS-BOT-BC164174  Clarkia concinna Doris K. Kildale 1927-5-17 3179 Humboldt Fish Creek near Garberville Comment
  UC169900  Clarkia concinna subsp. concinna Mrs. M. H. Manning 1901-1 75 Humboldt near Hupa Comment
  JEPS25696  Clarkia concinna subsp. concinna P. C. Hutchison 1961-5-22 2028 Humboldt ca. 4 mi n Orleans (hiway 299, e side of river); Klamath River Comment
  UC1143187  Clarkia concinna subsp. concinna H. and M. Lewis 1947-6-13 419 Humboldt 1.9 mi w Van Duzen River Bridge (4-129) (Hwy. 36) Comment
  HSC35351  Clarkia gracilis J. D. Ackerman, A. M. Montalvo 1975-6-22 485 Humboldt 6.4 mi. W of Dinsmore, Hwy. 36 Comment
  CAS-BOT-BC172503  Clarkia purpurea subsp. quadrivulnera Doris K. Kildale 1926-6-9 2141 Humboldt Horse Mountain 1219 Comment
  UC1281766  Clarkia purpurea subsp. quadrivulnera Richard Spellenberg 1965-6-13 1109 Humboldt about 3/4 mi s Highway through Hoopa Indian Reservation (along road on e side of river); Trinity River Comment
  UC314618  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1923-7-4 6527 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  HSC16262  Clarkia purpurea subsp. viminea Paul Shields 1955-6-12 Humboldt 6 mi. W of Myers Flat Comment
  CAS-BOT-BC172392  Clarkia purpurea subsp. viminea S. K. Harris; J. P. Tracy; C. C. Harris 1942-6-22 1261 Humboldt In a field, 7 miles north and 5 miles east of willow Creek 165 Comment
  UC161030  Claytonia exigua subsp. exigua Joseph P. Tracy 1910-4-24 3128 Humboldt Ocean Beach at Humboldt Bay; Northern Coast Region, Humboldt Bay Comment
  HSC17709  Claytonia parviflora subsp. parviflora Elrid H. Spinas 1948-5-22 34 Humboldt Horse Mtn. Comment
  UC184791  Claytonia parviflora subsp. parviflora Joseph P. Tracy 1913-6-13 4095 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in valley of Van Duzen River); Northern Coast Ranges 762 Comment
  HSC90481  Claytonia perfoliata Jean Hanson 1981-5-10 133 Humboldt Indian Island, Eureka, W end of island Comment
  HSC95727  Claytonia perfoliata subsp. perfoliata Steven Lee 2004-4-11 14 Humboldt 1 mi. N on scenic drive from Westhaven offramp on Hwy. 101, beach trail access N of Houda Pt. Comment
  CAS-BOT-BC440092  Claytonia perfoliata subsp. perfoliata J. M. Miller 1974-6-2 361 Humboldt French Camp Ridge; on Bald Hills Rd. 18.6 mi. SE. of the Lady Bird Johnson Grove parking lot. Adjacent to Bald Hills Rd. Approximate vicinity of French Camp 822 Comment
  CAS-BOT-BC440095  Claytonia perfoliata subsp. perfoliata J. H. Thomas 1949-6-13 922 Humboldt Along Klamath River, about 1 mile north of town of Orleans. Comment
  HSC17695  Claytonia rubra subsp. depressa S. J. Hawks 1965-2-12 3 Humboldt N end of Eureka Airport Comment
  HSC73938  Claytonia rubra subsp. rubra Gail Newton 1980-6-28 684 Humboldt Near Mad River Butte. 1536 Comment
  UC183595  Claytonia rubra subsp. rubra Joseph P. Tracy 1913-6-16 4141 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC443896  Claytonia sibirica Carl B. Wolf 1927-8-28 1171 Humboldt On grade 9 mi. from Willow Creek, Lord Ellis Road to Blue Lake Comment
  CAS-BOT-BC443897  Claytonia sibirica Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC45492  Claytonia sibirica Maralyn O'Meara 1972-6-8 103 Humboldt Along Bald Hills Rd., 18 mi. from junction with Hwy. 101 Comment
  UC161049  Claytonia sibirica Joseph P. Tracy 1911-7-5 3326 Humboldt near mouth of Willow Creek (along Willow Creek, tributary of Trinity River); Northern Coast Ranges, Trinity River 304 Comment
  UCD15453  Claytonia sibirica Collector Unknown 1974-1-6 136 Humboldt California, Humbolt Co.; Patricks Pt. State Park along Hwy 101, along trail to Agate Beach; 3 Comment
  UC1173720  Clematis lasiantha Joseph P. Tracy 1939-4-29 16229 Humboldt bluffs opposite mouth of Hors-Linto Creek (Trinity R.); Trinity R. 152 Comment
  UC1541329  Clintonia andrewsiana H. E. and S. T. Parks May 1930 754 Humboldt up the Van Duzen River Van Duzen River Comment
  HSC70391  Collinsia grandiflora Gail Newton 1980-6-7 120 Humboldt Near Brush Mtn. 1128 Comment
  HSC74444  Collinsia grandiflora M. A. Baker 1980-6-8 1924 Humboldt Near Buck Flat. 1554 Comment
  JEPS7342  Collinsia heterophylla Joseph P. Tracy 1927-5-30 8089 Humboldt Vicinity of Garberville 121 Comment
  HSC20603  Collinsia linearis H. E. Parks 1934-6-14 4789 Humboldt Horse Mtn. 1433 Comment
  HSC102619  Collinsia parviflora M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1606 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC70387  Collinsia parviflora M. A. Baker 1980-6-8 1887 Humboldt Near Buck Flat. 1554 Comment
  UC176057  Collinsia rattanii Joseph P. Tracy 1913-6-17 4190 Humboldt Northern Coast Ranges, Buck Mountain near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  RSA0117229  Collinsia rattanii S. S. Tillett 1956-7-6 623 Humboldt 12.5 miles from Orleans, along Bar Shanty Road. 1174 Comment
  UC147863  Collinsia rattanii Joseph P. Tracy 1908-6 2682 Humboldt Northern Coast Ranges, nw slope of Buck Mountain Buck Mountain; Northern Coast Ranges, Buck Mountain 762 Comment
  HSC32838  Collomia heterophylla Thomas W. Nelson, James Nelson 1973-5-28 948 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC73125  Collomia heterophylla M. A. Baker 1980-5-18 1306 Humboldt Near Black Mtn. 1006 Comment
  HSC89514  Collomia heterophylla M. Roantree 1985-4-28 20 Humboldt W side of Trinidad Head, along trail Comment
  UC52746  Collomia heterophylla J. P. Tracy 1900-5-28 823 Humboldt Eureka Comment
  HSC44406  Collomia heterophylla R. York 1978-5-6 158 Humboldt Along Bluff Creek Rd., 4 mi. from Jct. with Hwy. 96 610 Comment
  HSC97474  Collomia tinctoria C. Witte 2007-5-23 88 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  HSC102590  Collomia tracyi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1577 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC99064  Collomia tracyi Cara Witte 2007-7-20 569 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1522 Comment
  UC1197865  Collomia tracyi Joseph P. Tracy 1939-8-16 16416 Humboldt gravelly places near Clear Lake; North Coast Ranges 1524 Comment
  HSC27899  Conium maculatum B. R. Templeton 1962-5-15 Humboldt 3 mi S of Arcata Comment
  HSC69531  Conium maculatum R. Kalal 1980-6-1 4 Humboldt 0.25 mi. N of Hwy. 299, at Essex turnoff 15 Comment
  RSA246751  Conium maculatum R. F. Thorne, P. Everett 1965-8-8 35237 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  HSC27021  Conyza canadensis Brad Klipfel 1973-8-9 263 Humboldt Samoa Comment
  UC165072  Conyza canadensis Joseph P. Tracy 1908-7-1 2908 Humboldt ridge between Van Duzen and Mad Rivers (near Low Gap, Humboldt and Trinity Counties); Northern Coast Ranges 914 Comment
  HSC104326  Coptis laciniata James Regan, Humboldt Redwood Co., LLC 2009-4-1 31 Humboldt Snow Camp Rd., Bald Mtn. Creek Comment
  RSA20798  Corallorhiza maculata Carl B. Wolf 1937-8-13 9263 Humboldt North Coast Range, 12 mi. E. of Hoopa Valley on New Road toward Trinity Summit. 1677 Comment
  UC1222190  Corallorhiza maculata Joseph P. Tracy 1950-7-2 18972 Humboldt ridge e Grove's Prairie (near Elk Camp, 6 mi ne of Hawkins Bar); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  CHSC63435  Corallorhiza mertensiana Vernon H. Oswald 1994-6-29 6366 Humboldt Friday Ridge Rd. (Forest Rd. 6N08) 7.3 mi N of Titlow Hill Rd., 0.8 mi S of Brush Mtn Lookout Rd., S of Hwy. 299 and Willow Creek. 975 Comment
  HSC97979  Corallorhiza mertensiana Cara Witte 2007-7-8 428 Humboldt Board Camp Mountain. Pack trail 4E26. 1463 Comment
  HSC44843  Corallorhiza mertensiana Thomas W. Nelson, Jane P. Nelson 1977-7-1 3566 Humboldt N side of ridge between Bear Creek & Blanket Creek 1524 Comment
  HSC99048  Corallorhiza mertensiana Cara Witte 2007-6-20 315 Humboldt National Forest 1. 1.5 miles south of Titlow Hill. 1439 Comment
  HSC37178  Corallorhiza striata Rudolf W. Becking 1976-5-7 Humboldt 1 mi.. E of Blue Lake in Simpson Demonstration Forest, just off Hwy. 299 Comment
  JEPS15874  Corethrogyne filaginifolia Joseph P. Tracy 1928-5-20 8442 Humboldt Petrolia; Mattole Valley 60 Comment
  UC1601151  Corethrogyne filaginifolia Joseph P. Tracy 1934-7-21 13474 Humboldt near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  CAS-BOT-BC32935  Corethrogyne filaginifolia var. californica Henry Nicholas Bolander 1867-6-1 s.n. Humboldt On the coast at Shelter Cove and at Fort Bragg Comment
  RSA1406  Cornus nuttallii E. R. Johnson 1929-08 1432 Humboldt Eel River. 91 Comment
  RSA183588  Cornus nuttallii D. E. Anderson 1965-4-24 3549 Humboldt About 1 mile east of Redwood Creek bridge on Highway 299. Comment
  UC35022  Cornus nuttallii Chesnut and Drew 1888-7-9 Humboldt Kneeland Prairie Comment
  UC502983  Cornus sericea subsp. sericea Joseph P. Tracy 1927-11-6 8392 Humboldt along Yager Creek Carlotta; Northern Coast Ranges 60 Comment
  UC906747  Cornus sericea subsp. sericea Joseph P. Tracy 1947-6-26 17747 Humboldt forest near McKay Camp (S. Fork Mt.); S. Fork Mt. 1676 Comment
  CAS-BOT-BC210539  Cornus sessilis Doris K. Kildale 1927-7-3 3631 Humboldt Willow Creek Flat 152 Comment
  HSC93465  Cortaderia selloana Gordon Leppig, Kai Neander 1998-10-12 1104 Humboldt McKinleyville, empty lot on School Rd., behind Mill Creek Shopping Center 30 Comment
  CAS-BOT-BC180309  Corylus cornuta subsp. californica L. B. Kildale 1928-7-1 5311 Humboldt French Camp in Orick - Martin's Ferry road Comment
  CAS-BOT-BC180312  Corylus cornuta subsp. californica L. B. Kildale 1926-8-31 2602 Humboldt Union Mattole, Geo. H. Mineis Ranch Comment
  HSC78086  Cotula australis L. P. Janeway, Amy Eisenberg 1984-4-24 744 Humboldt On N spit of Humboldt Bay; SE side of intersection of Samoa and Fairhaven Rds. and E of the willow patch Comment
  UC722135  Cotula coronopifolia C. L. Hitchcock and J. S. Martin 1939-7-14 5434 Humboldt On cliff above pier Shelter Cove Comment
  UCD130891  Cotula coronopifolia Linda M. Barker 1976-7-5 1638 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC1080303  Crataegus gaylussacia E. K. Balls 1957-5-25 22602 Humboldt State Hwy 36, Van Duzen River, W of Trinity-Humboldt Co. line 731 Comment
  HSC99461  Crataegus suksdorfii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 115 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
  CAS-BOT-BC291488  Crepis capillaris David D. Keck; J. Clausen 1935-6-16 3397 Humboldt Orick Comment
  UC1199456  Crepis capillaris Joseph P. Tracy 1901-6-16 1142 Humboldt Immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC290588  Crepis capillaris A. A. Heller 1923-7-9 13777 Humboldt About 5 miles east of Arcata along the road to Blue Lake Comment
  CAS-BOT-BC291481  Crepis capillaris E. C. Johnston 1931-8-1 s.n. Humboldt Klamath River to Arcata Comment
  RSA15572  Crepis capillaris C. B. Wolf 1927-8-28 1188 Humboldt Eureka Bay on Arcata road Comment
  RSA28654  Crepis capillaris H. E. Parks 1941-08 24189 Humboldt Roadsides and fields, vicinity of Trinidad Comment
  UC538046  Crepis occidentalis E. B. Babcock 1932-6-23 403 Humboldt near Bridgeport (saddle of ridge above Art Renfroe's place) Comment
  HSC96260  Crepis pleurocarpa Laurel Goldsmith, Wanda Naylor 2005-6-15 10 Humboldt 1 mi. SE of Grouse Mtn. on unnamed F.S. road 1400 Comment
  UC1225821  Crepis setosa Joseph P. Tracy 1947-7-13 17769 Humboldt Hors-Linto Creek; near mouth 152 Comment
  OBI78670  Crepis tectorum Bresa Martin 2013-11-11 2 Humboldt At Humboldt State University on small walking path above bridge that led from Cypress Apartments. Twenty yards behind the track and football field. 30 Comment
  JEPS22553  Crocidium multicaule Joseph P. Tracy 1933-5-21 12212 Humboldt McClellan Mountain 822 Comment
  UC1199228  Crocidium multicaule Joseph P. Tracy 1918-5-1 4911 Humboldt top of Lawrence Creek Hill; Kneeland Prairie, Lawrence Creek Hill 762 Comment
  SEINET10529035  Crocosmia aurea Charlene A. Bennett 1976-8-6 Bennett 477 Humboldt Collected by hwy. 101, N side of orick. Rocky area, densely forested by river 30 Comment
  UC1239656  Cryptantha flaccida Joseph P. Tracy 1937-7-19 15455 Humboldt nw slope Buck Mountain; Northern Coast Ranges 914 Comment
  UC594155  Cryptantha flaccida S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3424 Humboldt nw slopes Buck Mountain 822 Comment
  UC175774  Cryptantha intermedia Mrs. M. H. Manning 1900-1 Humboldt Hupa Valley Comment
  HSC104443  Cryptantha leiocarpa Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 3 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  UC1222274  Cryptantha leiocarpa Joseph P. Tracy 1946-6-2 17552 Humboldt Fairhaven Samoa Peninsula Comment
  HSC78612  Cryptantha leiocarpa L. P. Janeway, Amy Eisenberg 1984-4-24 743 Humboldt On N Spit of Humboldt Bay, SE side of intersection of Samoa and Fairhaven Rds. and E of the Willow patch 3 Comment
  HSC95656  Cryptantha leiocarpa Andrea Pickart 2002-4-3 26 Humboldt Samoa Dunes, City of Eureka airport. 0 Comment
  HSC98680  Cuscuta californica Cara Witte 2008-7-2 793 Humboldt National Forest Road 1; 5 miles south of intersection with 5N04. Before cattle guard crossing. 1406 Comment
  CDA39929  Cuscuta campestris E. C. Whitney 1962-9-17 s.n. Humboldt W.E. Bartlett property, Shively. 0 Comment
  UC604649  Cuscuta campestris Joseph P. Tracy 1938-8-28 16138 Humboldt Stone Lagoon Beach 6 Comment
  HSC35596  Cuscuta occidentalis Thomas W. Nelson, Jane Nelson, James Nelson 1975-7-15 2007 Humboldt French Camp, Bald Hills Comment
  SD90539  Cuscuta pacifica var. pacifica Robert F. thorne, P. Everett 1965-8-8 35280 Humboldt North edge of Eureka, east of Hwy. 101 3 Comment
  HSC36310  Cuscuta salina Karen Burgessen 1973-5-30 Humboldt Near Humboldt Bay at oxidation ponds Comment
  CHSC31295  Cuscuta salina var. major Mark Stopher 1980-7-11 117 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  SEINET943383  Cuscuta salina var. major C. C. Harris, S. K. Harris 1941-1 1175 Humboldt In Illinois Biol. Monogr. Vi. 161, fig. 32 a-e, 121, 140 (1921) et in Mem. Torrey Bot. Club, xviii. 168, fig. 42 F (1932). Comment
  UC922005  Cynodon dactylon Joseph P. Tracy 1940-10-17 16763 Humboldt South Fork Station 60 Comment
  HSC9521  Cynosurus echinatus Paul Shields Jun 1955 Humboldt 6 mi. W of Myers Flat Comment
  JEPS26624  Cynosurus echinatus Ira L. Wiggins 1957-6-21 14142 Humboldt 1 mi. s. Garberville (e. side of rd.) Comment
  RSA137066  Cynosurus echinatus I. L. Wiggins 1957-6-21 14142 Humboldt Margin of grassy slide area on east side of road, 1 mile south of Garberville Comment
  RSA91852  Cynosurus echinatus Joseph P. Tracy, H. E. Parks 1933-6-11 12542 Humboldt Near Miranda 152 Comment
  SEINET6633542  Cyperus bipartitus Henry M. Pollard 1945-1 s.n. Humboldt Misson creek, Klamath River Canyon Comment
  UC668034  Cyperus eragrostis Joseph P. Tracy 1935-5-25 13836 Humboldt Fort Seward 106 Comment
  HSC7216  Cyperus eragrostis J. P. Tracy 1935-7-17 14099 Humboldt Trinity River Valley at Willow Creek 152 Comment
  RSA54120  Cyperus squarrosus Henry M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  HSC55069  Cystopteris fragilis G. L. Clifton, Griswold 1979-7-31 11649 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC74727  Cystopteris fragilis Gail Newton 1981-7-23 2282 Humboldt Near Bug Creek Butte. 1350 Comment
  HSC14675  Cytisus scoparius William J. Ferlatte 1963-4-21 19 Humboldt Near 11th and A St., Arcata Comment
Read comments
Dec 18 2011
  SEINET2153799  Cytisus scoparius K. T. Harper 2002-1 2002 -3 Humboldt Redwood Park, near Orick. Comment
  CAS-BOT-BC198198  Cytisus striatus Catherine Best 1990-6-26 1367 Humboldt At the edge of Stagecoach Road off Hwy. 101. Comment
  HSC70783  Dactylis glomerata Gail Newton 1980-7-23 1749 Humboldt Near Packsaddle Ridge 1463 Comment
  HSC73805  Dactylis glomerata M. A. Baker 1980-6-16 1937 Humboldt Near Monks Camp. 1097 Comment
  HSC74563  Dactylis glomerata M. A. Baker 1980-5-17 1244 Humboldt Near Le Perron Peak 1066 Comment
  HSC9535  Dactylis glomerata R. H. Berg 1963-2-23 2 Humboldt Fickle Hill area, Arcata Comment
  CAS-BOT-BC189740  Danthonia californica Joseph P. Tracy 1928-6-24 8463 Humboldt Northern Coast Ranges. Valley of South Yager Creek. 762 Comment
  UC187246  Danthonia californica var. americana Joseph P. Tracy 1906-6-24 2510 Humboldt Humboldt Hill Northern Coast Region, region about Humboldt Bay (s slope) 0 Comment
  SEINET201006 Image available Danthonia pilosa Joseph P. Tracy 1941-8-17 16994 Humboldt Hungry Hollow on Bald Mt. 762 Comment
  UC673050  Daucus carota Joseph P. Tracy 1940-10-17 16761 Humboldt near Dyerville (South Fork Station); South Fork Station 48 Comment
  HSC12418  Daucus carota D. Santana 1970-10-15 72 Humboldt 11th and A St. in open vacant lot Comment
  HSC97517  Delphinium decorum Frances Reuss Harmon 2001-3-22 9 Humboldt Six Rivers National Forest, Grays Falls Campground Comment
  HSC101980  Delphinium decorum subsp. tracyi M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 877 Humboldt Patterson Meadows 1566 Comment
  UC467717  Delphinium decorum subsp. tracyi Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5788 Humboldt Trinity Summit Comment
  HSC96221  Delphinium decorum subsp. tracyi Eric Schori, Kazuyuki Ishimaru 2005-6-3 2 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment
  CAS-BOT-BC10137  Delphinium menziesii Mrs. H. C. Cantelow 1941-4-19 s.n. Humboldt 2.5 mi. NE of Cape Town on road to Ferndale Comment
  HSC35550  Delphinium menziesii D. L. Gray 1964-5-3 6409 Humboldt 61 Comment
  UC1196328  Delphinium nudicaule Joseph P. Tracy 1937-5-30 15303 Humboldt 5 mi n Blocksburg; Larrabee Creek 365 Comment
  JEPS23367  Delphinium nudicaule Joseph P. Tracy 1927-5-30 8084 Humboldt near Briceland; Northern Coast Ranges 243 Comment
  UC1196333  Delphinium nudicaule Joseph P. Tracy 1922-5-29 6081 Humboldt rocky slopes at head Northern Coast Ranges, South Yager Creek 762 Comment
  CAS-BOT-BC116467  Delphinium nuttallianum Daniel Howard Norris 1931-5-30 12213 Humboldt ...at crest of ridge on Big Hill Road east of Hoopa Comment
  CAS-BOT-BC121962  Delphinium trolliifolium Doris K. Kildale 1928-5-15 6018 Humboldt Bug Creek, Chaparral Mountain 914 Comment
  CAS-BOT-BC121976  Delphinium trolliifolium Mrs. G Earle Kelly 1924-6-1 s.n. Humboldt Kneeland Prairie Comment
  RSA114995  Delphinium trolliifolium E. K. Balls, Lee W. Lenz 1955-5-15 20736 Humboldt 9.9 miles SW from Fernbridge, along Old Coast road to Capetown. 503 Comment
  CAS-BOT-BC121965  Delphinium trolliifolium Mrs. H. C. Cantelow 1941-4-19 s.n. Humboldt 8.4 miles SW of Ferndale on road to Cape Mendocino. Comment
  CAS-BOT-BC121977  Delphinium trolliifolium Albert Michael Vollmer; L. Beane 1951-6-6 106 Humboldt On road between Orick and Weitchpec Comment
  JEPS102996  Delphinium trolliifolium R. Raiche, K. Zadnik, and H. Forbes 1991-6-13 136 Humboldt 39 mi E of Rio Dell (on Hwy 36) 896 Comment
  JEPS23301  Delphinium trolliifolium W. L. Jepson 1934-5-6 16681 Humboldt Little Larrabee Creek Comment
  UCSB2009  Delphinium trolliifolium Keator, Glenn 1958-6-18 Humboldt Near Kneeland Comment
  SEINET10515720  Deschampsia cespitosa Mark Stopher 1980-6-4 Stopher 95 Humboldt Very common along Elk River near Hwy 101 bridge. T4N R1W sw 1/4 sec 4, Eureka quadrangle. Elevation 1 mi. 1 Comment
  UC184160  Deschampsia cespitosa subsp. beringensis Joseph P. Tracy 1912-6-16 3700 Humboldt edge of salt marsh at Hookton; Northern Coast Region, area about Humboldt Bay 0 Comment
  BLMAR534  Deschampsia danthonioides Jennifer Wheeler 2009-6-23 534 Humboldt King range, On King Peak road Comment
  CAS-BOT-BC192701  Deschampsia danthonioides Joseph P. Tracy 1935-6-23 13969 Humboldt French Camp Ridge 1066 Comment
  CHSC102216  Deschampsia danthonioides Peter F. Zika 2009-6-15 24488 Humboldt North Coast; near Hatchery Road, S of town of Blue Lake. 20 Comment
  BLMAR267  Deschampsia elongata Jennifer Anthony-Wheeler 1999-6-16 267 Humboldt Headwaters Forest Reserve, growing near beginning of wildlife rd 524 Comment
  CDA31675  Deschampsia elongata T. C. Fuller 1962-8-6 9363 Humboldt Near Hwy 299 to Blue Lake, 2.6 miles east of Bald Mtn. Summit Rd., 1 miles west of Green Point School. 0 Comment
  HSC38624  Deschampsia elongata D. E. Anderson, J. P. Smith 1971-6-21 - 1105 Humboldt 2 mi. E of Garberville, on rd. to Alderpoint. Comment
  POM210034  Deschampsia elongata H. E. Parks 1931-05 3646 a Humboldt Big Lagoon Comment
  UC187265  Deschampsia elongata Joseph P. Tracy 1908-6 2710 Humboldt opposite Buck Mt. Buck Mt.; Northern Coast Ranges, valley of Van Duzen R. 762 Comment
  SEINET3071060 Image available Deschampsia holciformis Joseph P. Tracy 1934-7-20 13465 Humboldt Big Lagoon Comment
  HSC8357  Dicentra formosa D. A. Shally 1965-5-15 51 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  CDA24607  Dicentra formosa C. Sinkiewicz 2002-4-17 Humboldt McKinnleyville, Dows Prairie. Comment
  HSC34639  Dicentra formosa David M. Brazelton 1975-4-10 6 Humboldt 150 yards SW of junction of Fieldbrook Rd. and Evans Rd. Comment
  SEINET12103157  Dicentra formosa Unknown 1936-1 13351 Humboldt Comment
  UC1196303  Dicentra formosa Joseph P. Tracy 16208 Humboldt vicinity Carlotta 30 Comment
  UCD139434  Dichelostemma capitatum subsp. capitatum J. W. Logan 2016-6-17 s.n. Humboldt from Kneeland Ranges. Comment
  HSC97967  Dichelostemma congestum Cara Witte 2007-7-2 392 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1406 Comment
  SEINET3885611  Dichelostemma ida-maia Thomas Nelson, Jane P. Nelson; James Nelson 1975-6-21 1947 Humboldt Beside Highway 36 ca. 5 mi. east of Bridgeville.; 0 Comment
  CAS-BOT-BC501024  Dichelostemma ida-maia Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC3034  Dichelostemma ida-maia D. G. Hauger 1967-7-15 21 Humboldt 1.0 mi. from Ft. Baker 549 Comment
  UC13825  Dichelostemma multiflorum Harley P. Chandler Jun 1901 1310 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  CHSC1743  Digitalis purpurea M. Anthony 1960-5-14 Humboldt N. of Arcata, Highway 101. Comment
  UC198616  Digitalis purpurea Joseph P. Tracy 1917-5-30 4790 Humboldt Dows Prairie; Northern Coast Ranges 60 Comment
  HSC44762  Digitalis purpurea Maralyn O'Meara 1972-6-8 95 Humboldt Along Bald Hills Rd., 8 mi. E of junction with Hwy. 101 Comment
  CAS-BOT-BC150339  Diplacus aurantiacus Doris K. Kildale 1926-3-20 1547 Humboldt Near mouth of Little River Comment
  SEINET8221173  Diplacus aurantiacus L. R. Abrams 1916-7-18 6072 Humboldt Fortuna. Comment
  SBBG26842  Diplacus kelloggii L. Constance, R. C. Rollins 1941-5-12 Humboldt bluffs at jct of Klamath and Salmon Rivers, 1 mi S of Somes Bar 152 Comment
  CAS-BOT-BC153324  Diplacus layneae Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 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
  UC275553  Disporum hookeri Joseph P. Tracy 1924-5-4 6670 Humboldt Grizzly Creek on Van Duzen River Grizzly Creek; Northern Coast Ranges, Van Duzen River, Grizzly Creek 91 Comment
  POM118601  Disporum smithii Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UCR67631  Disporum smithii Michael A. Hanson 1990-5-21 70 Humboldt Arcata, 0.5 mi (0.8 km) east of Humboldt State University Life Science Building. 159 Comment
  RSA20815  Disporum smithii Carl B. Wolf 1937-9-10 9313 Humboldt Along old logging road 2 miles E of Trinidad on way to Hammond Lumber Co. s Camp 20 (abandoned). 152 Comment
  RSA367638  Disporum smithii Hutchinson 1927-05 s.n. Humboldt [No locality information provided] Comment
  OBI36623  Distichlis spicata David J. Keil 1983-7-2 17298 Humboldt Humboldt Bay salt marsh at Arcata Corporation Yard Comment
  UC562749  Dodecatheon alpinum Joseph P. Tracy 1932-7-14 10565 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  HSC70230  Dodecatheon hendersonii M. A. Baker 1980-6-8 1892 Humboldt Near Buck Flat. 1554 Comment
  SEINET201059 Image available Dodecatheon hendersonii Joseph P. Tracy 1927-5-15 8061 Humboldt Hoopa Mountain; near summit on road west from Hoopa to Bair's. 1067 Comment
  UC1222563  Dodecatheon hendersonii Joseph P. Tracy 1950-5-7 18644 Humboldt on the road to South Yager Valley about 5 mi n Bridgeville; n of Bridgeville 198 Comment
  HSC45263  Dodecatheon hendersonii M. Alcasas 1978-4-7 4 Humboldt Freshwater Rd. 1/2 mi. N of Kneeland School 857 Comment
  UC1199495  Downingia elegans Joseph P. Tracy 1937-7-19 15462 Humboldt Larrabee Valley 731 Comment
  UC1198846  Drosera rotundifolia Joseph P. Tracy Jul 16 1930-Jul 19 1930 9002 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC59622  Drymocallis glandulosa J. P. Smith, Steve Selva 1970-6-30 4148 Humboldt Comment
  HSC57875  Drymocallis lactea var. lactea Overton, Butler 1979-7-31 11411 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CAS-BOT-BC70874  Dryopteris arguta Ira L. Wiggins 1932-6-18 5872 Humboldt mouth of Little River Comment
  UC42173  Dryopteris arguta C. C. Marshall 46 Humboldt Hoopa Valley Comment
  JEPS70196  Dryopteris arguta Robert J. Rodin 1969-8-16 8368 Humboldt near Carlotta (near Van Duzen River) Comment
  POM281637  Dryopteris arguta Lyman Benson 1929-7-16 1829 Humboldt Weott Ranger Station. Comment
  UC1239775  Dryopteris expansa Joseph P. Tracy 1931-3-15 9286 Humboldt on Van Duzen River Strong's Station; Northern Coast Ranges 91 Comment
  BLMAR300  Dryopteris expansa Jennifer Anthony-Wheeler 2002-6-10 300 Humboldt South Spit, on North jetty, west of lone cypress 6 Comment
  UC183454  Echinochloa crus-galli Joseph P. Tracy 1900-11-1 973 Humboldt Eureka; Northern Coast Region 0 Comment
  UC526835  Echinochloa muricata var. microstachya Joseph P. Tracy 1930-10-12 9209 Humboldt Eel River on gravel bars Alton to Fortuna; Northern Coast Region, Eel River 15 Comment
  NY242008  Elatine rubella A. Tiehm 1987-8-3 11474 Humboldt Pine Forest Range, Onion Creek Reservoir northwest of Blue Lake and Duffer Peak at the north end of the range. 2151.9 Comment
Read comments
Feb 25 2012
  JEPS19332  Eleocharis acicularis Joseph P. Tracy 1937-8-12 15626 Humboldt Bald Mountain, at Lake Prairie 1066 Comment
  UC666877  Eleocharis macrostachya Joseph P. Tracy 1934-7-30 13506 Humboldt Dry Lagoon (along coast in front of South End of Stone Lagoon) 3 Comment
  UC1103658  Eleocharis macrostachya Joseph P. Tracy 1938-6-15 15929 Humboldt 3 mi S of Fields Landing (Salmon Creek Flats) 6 Comment
  POM126088  Eleocharis parvula Joseph P. Tracy 1924-8-3 6744 Humboldt Stone Lagoon Comment
  HSC73057  Elymus X hansenii M. A. Baker 1980-7-23 3163 Humboldt Near Orleans Mtn. 1859 Comment
  HSC98801  Elymus elongatus Cara Witte 2007-7-12 519 Humboldt Along Forest Service Road 5N10. 1.25 miles south of intersection with 5N41. 1283 Comment
  CAS-BOT-BC227348  Elymus elymoides Doris K. Kildale 1925-8-17 1260 Humboldt Trinity Summit 1917 Comment
  SEINET201036  Elymus elymoides subsp. brevifolius Joseph P. Tracy 1919-9-23 5279 Humboldt Trinity Summit 1829 Comment
  HSC91890  Elymus glaucus E. Mackey 1986-10-7 Humboldt Partick's Point State Park. Comment
  UC1056067  Elymus glaucus J. I. Mallory 1955-6-7 113 Humboldt Luke Prairie Quad. 29-B-3 (n end) 350 Comment
  UC186000  Elymus glaucus Joseph P. Tracy 1912-6-9 3659 Humboldt Alton Northern Coast Region 30 Comment
  UC526798  Elymus glaucus Joseph P. Tracy 1926-6-20 7652 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  UCD62351  Elymus glaucus subsp. glaucus A. A. Beetle; G. L. Stebbins Jr. 1942-6-3 3484 Humboldt Near Garberville, 1.4 miles on road to Harris. Comment
  HSC38942  Elymus mollis subsp. mollis Linda M. Barker 1976-6-1 1563 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC9728  Elymus mollis subsp. mollis E. W. Styskel 1964-5-7 82 Humboldt 2 miles S of Samoa near Samoa Rd. Comment
  UCD62651  Elymus trachycaulus Les Berry 1956-6-20 s.n. Humboldt May Ranch, Bridgeville. 609 Comment
  RSA257605  Empetrum eamesii subsp. hermaphroditum G. D. Wallace 1975-8-22 11486 Humboldt NW of Trinidad, on NW facing exposure of Megwil Point, just N of Elk Head, N of College Cove, sand bluffs in sight of Green Rock to the NW. Comment
  HSC49812  Empetrum nigrum R. York 1979-4-13 220 Humboldt Elks Head, 1 mi. N of Trinidad Comment
  UC1414225  Empetrum nigrum subsp. hermaphroditum Gary S. Lester 1975-4-6 604 Humboldt n Trinidad (Megwil Point); Trinidad State Beach, Elk Head 15 Comment
  SDSU8810  Epilobium angustifolium subsp. circumvagum D. F. Howe 1961-8-1 3102 Humboldt 6 miles north of Trinidad on #101. Comment
  UC1198484  Epilobium brachycarpum J. P. Tracy 1906-8-18 2541 Humboldt immediate vicinity of Eureka 0 Comment
  SEINET187086  Epilobium brachycarpum P. A. Munz 1936-8-10 14337 Humboldt Roadside Little Van Duzen River 15 miles east of Bridgeville. Comment
  HSC74754  Epilobium ciliatum subsp. ciliatum Gail Newton 1981-8-6 2398 Humboldt Near Humbug Creek 1256 Comment
  HSC49017  Epilobium ciliatum subsp. ciliatum Patricia Shesgreen 1978-8-2 126 Humboldt Bayview St., Arcata, 250 yds. below Redwood Sciences Laboratory Comment
  UC583078  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-10 14340 Humboldt 15 mi e Bridgeville; Little Van Duzen River Comment
  UC722075  Epilobium ciliatum subsp. ciliatum C. L. Hitchcock and J. S. Martin 1939-7-14 5441 Humboldt 7 mi e Shelter Cove 243 Comment
  UC1197006  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9099 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC12701  Epilobium ciliatum subsp. watsonii Jana Kattenhorn 1970-10-28 155 Humboldt Mad River at the mouth of Lindsey Creek, N Bank Rd. off Hwy. 299 Comment
  HSC16358  Epilobium ciliatum subsp. watsonii D. E. Anderson 1961-9-2 1764 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  UC726596  Epilobium ciliatum subsp. watsonii A. A. Heller 1923-7-9 13785 Humboldt between Eureka and Fortuna Comment
  HSC13239  Epilobium ciliatum subsp. watsonii Steve Dorei 1970-10-9 36 Humboldt HSU Campus, around pond at W end of Fish Hatchery Comment
  SEINET9075566 Image available Epilobium ciliatum subsp. watsonii Robert F. Thorne, P. Everett 1965-1 35201 Humboldt Samoa Peninsula 0 Comment
  HSC98657  Epilobium densiflorum Cara Witte 2007-7-3 408 Humboldt White Oak Opening. 1242 Comment
  JEPS38191  Epilobium densiflorum W. L. Jepson 1927-7-3 12364 Humboldt Miranda Station South Fork Eel River 228 Comment
  POM247179  Epilobium glaberrimum subsp. glaberrimum Joseph P. Tracy 1936-8-7 15102 Humboldt Trinity Summit, head of Hors-Linto Creek 1524 Comment
  UC205637  Epilobium hallianum Joseph P. Tracy 1919-9-18 5234 Humboldt Trinity Summit (Northern Coast Ranges) Comment
  UC562506  Epilobium hallianum Joseph P. Tracy 1935-5-25 13852 Humboldt Fort Seward 106 Comment
  CAS-BOT-BC171828  Epilobium oreganum Joseph P. Tracy 1933-7-25 12835 Humboldt Grouse Mountain, North Coast Ranges 1524 Comment
  JEPS31520  Epilobium septentrionale Joseph P. Tracy 1933-9-9 13075 Humboldt vicinity of Garberville (along S. Fork Eel R.); S. Fork Eel R. 121 Comment
  UC249614 Image available Epilobium septentrionale Joseph P. Tracy 1921-8-21 5942 Humboldt Mouth of South Fork of Trinity River; Northern Coast Ranges; Humboldt Co. 152 Comment
  UC1198495  Epilobium torreyi Joseph P. Tracy 8744 Humboldt near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  POM281840  Equisetum hyemale var. affine Lyman Benson 1928-7-9 414 Humboldt Weott Ranger Station. Seaward N Coast Mtn range, S Fork Eel River. 61 Comment
  HSC99644  Equisetum telmateia subsp. braunii L. Watson, J. Meninga Mar 1991 22 Humboldt Near Manilla, Mad River Slough and Dunes, 0.5 mi. N of parking lot, E of trail Comment
  UC211495  Equisetum telmateia subsp. braunii Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  UC1103227  Eragrostis pilosa var. pilosa Joseph P. Tracy 1920-8-15 5361 1/2 Humboldt Klamath River mouth of Bluff Creek (mouth of Bluff Creek); Northern Coast Ranges, , Bluff Creek 152 Comment
  POM51468  Erechtites minimus Joseph P. Tracy 1918-7-28 5088 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay. Comment
  HSC27395  Eremocarpus setiger Thomas W. Nelson 1970-9-3 220 Humboldt Mad River. Comment
  UC1193151  Ericameria arborescens P. J. Zinke 162 Humboldt 1 mi sw Bear Butte; Quad 29C<l?> 609 Comment
  HSC56372  Erigeron aliceae Griswold, Butler 1979-7-11 6395 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  UC581743  Erigeron aliceae Joseph P. Tracy 1930-7-18 9035 Humboldt South Fork Mountain South Fork Mountain (near McKay Camp) 1676 Comment
  UC1223012  Erigeron annuus Joseph P. Tracy 1949-10-9 18585 Humboldt Eureka Eureka (weed in garden) Comment
  UC774989  Erigeron foliosus var. confinis Carl B. Wolf 1937-8-13 9218 Humboldt 8 mi e Hoopa Valley (on new road towards Trinity summit); North Coast Range 1219 Comment
  CAS-BOT-BC308849  Erigeron glaucus Doris K. Kildale 1926-6-6 2122 Humboldt Gold Bluffs Comment
  HSC59670  Erigeron glaucus George Kirn 1977-9-27 Humboldt 0.5 mi. NW of Samoa 8 Comment
  RSA54145  Erigeron inornatus var. inornatus H. M. Pollard 1946-8-28 s.n. Humboldt Near Summit of Orleans Mt. 1829 Comment
  UC581719 Image available Erigeron klamathensis Joseph P. Tracy 1937-7-24 15515 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  HSC81688  Erigeron maniopotamicus Thomas W. Nelson, James Nelson 1980-6-10 5395 Humboldt Jack Rabbit Valley, along Swayback Ridge 4-wheel drive road, 1 mi. S of junction with Forest Service road 1494 Comment
  UC1199400  Erigeron strigosus var. septentrionalis Joseph P. Tracy 1935-7-9 14057 Humboldt opposite Willow Creek; Trinity River Valley 152 Comment
  UC87665  Erigeron strigosus var. strigosus Harley P. Chandler June 1901 1402 Humboldt Klamath River North Coast Ranges 243 Comment
  RSA802617  Eriogonum J. R. Bruff 1937-8-17 929 Humboldt Richardson Grove, bed of Eel River. Comment
  CAS-BOT-BC259148  Eriogonum latifolium Marcus E. Jones 1931-7-12 28806 Humboldt Alton Comment
  LA206934  Eriogonum latifolium Carl Epling; Mrs. Epling 1935-8-15 sn Humboldt Arcata Spit Comment
  SD38694  Eriogonum latifolium Edith A. Purer 1932-7-27 4149 Humboldt Near Samoa, near Arcata Comment
  UC672913  Eriogonum latifolium Joseph P. Tracy 1927-6-18 8175 Humboldt s point of the Cape (near ocean shore); Cape Mendocino 3 Comment
  HSC98667  Eriogonum nudum var. nudum Cara Witte 2007-6-19 296 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38 1254 Comment
  UC54704  Eriogonum nudum var. nudum Harley P. Chandler June, 1901 1491 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  UC6392  Eriogonum nudum var. oblongifolium Harley P. Chandler June, 1901 1442 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  CAS-BOT-BC269863  Eriogonum nudum var. pubiflorum Carl D. Duncan 1920-9-21 336 Humboldt Hoopa Comment
  HSC100600  Eriogonum umbellatum Carl C. Marshall Jun 1885 22 Humboldt S Fork Mtn. summit Comment
  UC55392  Eriogonum umbellatum var. dumosum Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5735 Humboldt Supply Creek North Coast Ranges, Hoopa Valley, Supply Creek Comment
  HSC58062  Eriophorum crinigerum G. L. Clifton, Griswold 1979-8-1 11939 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1692 Comment
  SEINET10551827  Eriophorum crinigerum Henry N. Bolander 1866-1 Bolander 6475 Humboldt Red Mountain. Comment
  HSC58136  Eriophyllum lanatum var. achilleoides Gilbert Muth 1979-8-1 12144 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC165859  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1911-6-29 3268 Humboldt near Hydesville (gravel bar of river); Van Duzen River 60 Comment
  UC129580  Eriophyllum lanatum var. grandiflorum Mrs. M. H. Manning 1901-6-7 Humboldt near Hupa Comment
  HSC5585  Eriophyllum lanatum var. lanceolatum Lincoln Constance, R. C. Rollins 1942-5-12 2890 Humboldt Klamath River, 12 mi. N of Weitchpec 122 Comment
  UC176463  Eriophyllum staechadifolium Joseph P. Tracy 1913-7-13 4361 Humboldt Patrick's Point Patrick's Point (bluffs facing ocean) 30 Comment
  HSC8499  Erodium cicutarium D. E. Anderson 1962-3-17 1935 Humboldt 4 mi. S of Lone Star Ranch Comment
  CAS-BOT-BC41574  Erysimum capitatum S. K. Harris 1936-6-20 3493 Humboldt Above Van Duzen River about 3 miles west of Bridgeville. Comment
  HSC34457  Erysimum menziesii J. P. Smith, J. O. Sawyer 1975-5-11 8079 Humboldt Samoa Peninsula, just N of The Coast Guard Station boundary. Comment
  CAS-BOT-BC383156  Erythranthe guttata David B. Lowry 2005-5-16 KLM Humboldt In Klamath River Valley, roadside Hwy. 96 between Weitchpec and Orleans 227 Comment
  HSC100556  Erythronium Carl C. Marshall May 1887 Humboldt No data. Comment
  CHSC42783  Erythronium californicum R. N. Raynor 1935-4-8 Humboldt Fort Seward. Comment
  HSC70931  Erythronium californicum R. York 1980-5-18 558 Humboldt Near Black Mtn. 1006 Comment
  HSC74620  Erythronium californicum M. A. Baker 1980-5-17 1248 Humboldt Near Le Perron Peak 1066 Comment
  UC275550  Erythronium californicum Joseph P. Tracy 1924-4-27 6639 Humboldt on hwy near Ruby Creek; Northern Coast Ranges, Willow Creek 609 Comment
  UC13769  Erythronium grandiflorum W. C. Blasdale 1896-6-9 Humboldt top S. Fork Mountain Comment
  SEINET3992480  Erythronium grandiflorum var. pallidum Unknown 1933-7-16 12774 Humboldt South Fork Mountain, near McKay Camp 1676 Comment
  CAS-BOT-BC502808  Erythronium oregonum Lena E. Bowley 1941-4-1 s.n. Humboldt unspecified Comment
  CDA42403  Escallonia rubra R. Robison 2014-5-5 s.n. Humboldt Near Trinidad State Beach, east of park. 0 Comment
  UC1196290  Eschscholzia californica Joseph P. Tracy 1912-7-4 3734 Humboldt near Hydesville; Northern Coast Region 60 Comment
  RSA168920  Eschscholzia californica subsp. californica Joseph P. Tracy 1950-6-8 18750 Humboldt Cape Mendocino, near ocean shore, south of point of the Cape. At 'Devil's Gate'. 3 Comment
  HSC69578  Eucalyptus globulus R. Kalal 1980-6-1 7 Humboldt City of Arcata, along F street between 12th and 13th streets. 37 Comment
  UC1223113  Euchiton sphaericus Joseph P. Tracy 1942-7-26 17299 Humboldt 1 mi n Redwood House (on the Redwood House Road at old mill site); Valley of South Yager Creek 457 Comment
  CAS-BOT-BC310487  Euchiton sphaericus Henry M. Pollard 1947-8-30 s.n. Humboldt North Road along Klamath between Van Fleet ranch and Redcap Creek, nr. Orleans Comment
  CAS-BOT-BC206804  Euonymus occidentalis John Thomas Howell 1936-8-29 12887 Humboldt Eel River 16 miles N of Garberville Comment
  UC34837  Euonymus occidentalis var. occidentalis Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  UC183758  Euphorbia crenulata Joseph P. Tracy 1912-7-27 3882 Humboldt Kneeland Prairie; Northern Coast Range 762 Comment
  CDA4829  Euphorbia davidii E. C. Whitney 1963-8-5 s.n. Humboldt In ballast of N.W.P. R.R. tracks, Scotia. 0 Comment
  JEPS31927  Eurybia radulina W. L. Jepson 1936-8-13 17895 Humboldt n of, Tuttle Ranch Garberville Comment
  UC180190  Eurybia radulina Joseph P. Tracy 1914-9-6 4619 Humboldt Bald Mountain, between High Prairie and Snow Camp Bald Mountain 1066 Comment
  UCD65871  Festuca californica subsp. californica R. Tofsrud 1948-9-1 Humboldt Road junction near summit of Horse Mt. 1463 Comment
  UC1565802  Festuca idahoensis R. Spellenberg 1990-7-10 10249 Humboldt 8 mi wsw Salyer (6 mi s of Berry Summit, on CA Hwy 299, on USFS 1, extreme e edge of Humboldt County) 1371 Comment
  HSC31117  Festuca occidentalis J. O. Sawyer 1970-6-14 2264 Humboldt S of Mill Creek Gap, FS 10N02 1433 Comment
  HSC74468  Festuca occidentalis Gail Newton 1980-7-22 1705 Humboldt Near Devils Backbone 1545 Comment
  UCD66174  Festuca occidentalis Linda M. Barker 1976-6-14 1598 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  HSC9974  Festuca rubra D. J. Wilder 1965-4-25 11 Humboldt 4 mi. from Arcata on Fickle Hill Rd. Comment
  CAS-BOT-BC282520  Festuca subbiflora Joseph P. Tracy 1901-6-10 1134 Humboldt Eureka 60 Comment
  UC1103707  Festuca subulata Joseph P. Tracy 1913-6-20 4215 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  SEINET11922532  Fragaria chiloensis T. L. Ashman, Koski, M. 2011-6-4 2 Humboldt Samoa Dunes Recreation Area Comment
  CHSC24854  Fragaria vesca A. D. Launer 1976-4-10 1 Humboldt On n roadbank of Church St., ca. 100 yds e of Blocksburg. 472 Comment
  HSC18615  Fragaria vesca J. J. Wagoner 1965-5-1 25 Humboldt 6 mi. W of Willow Creek along Hwy. 299 Comment
  UC1198723  Fragaria vesca Joseph P. Tracy 1935-7-25 14237 Humboldt McKay Prairie; Trinity Summit 1584 Comment
  CAS-BOT-BC437050  Fragaria vesca subsp. bracteata M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale 8 miles norht of Garberville Comment
  HSC18399  Frangula californica Dale Thornburg 1968-11-10 Humboldt Hogback Ridge NE of Ammon Guard Station Comment
  CAS-BOT-BC53403  Frangula californica subsp. occidentalis C. D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC59997  Frangula purshiana C. B. Wolf 1937-8-13 9260 Humboldt N. coast range, 11 mi. e. of Hoopa Valley on New Road towards Trinity summit. 1524 Comment
  RSA46909  Fraxinus latifolia Doris K. Kildale 1926-6-27 2229 Humboldt Little Van Duyen River on bridge on Bridgeville Red Bluff road 640 Comment
  UC906695  Fraxinus latifolia Joseph P. Tracy 1941-3-26 16814 Humboldt opposite mouth of Willow Creek; Trinity River Valley, Lack Pond 152 Comment
  UC1541354  Fritillaria W. K. Parks July 1933 1399 Humboldt South Fork Mountain Comment
  RSA304286  Fritillaria affinis James R. Shevock 1972-3-27 1479 Humboldt Bear River Valley near Cape Mendocino 152 Comment
  RSA79369  Fritillaria affinis E. K. Balls, Lee W. Lenz 1952-5-12 17194 Humboldt 3.9 miles east of Bridgeville along Highway 36 Comment
  CAS-BOT-BC130449  Fritillaria purdyi Elrid H. Spinas 1948-5-22 45 Humboldt Horse Mt. Comment
  HSC38787  Fritillaria purdyi J. P. Smith 1976-5-30 8826 Humboldt Near Black Rock on road to Clear Lake 1524 Comment
  UC667119  Fritillaria purdyi Joseph P. Tracy 1938-6-13 15925 Humboldt Horse Mt. 1432 Comment
  SEINET8272054  Fritillaria purdyi Doris K. Kildale 1926-3-21 1575 Humboldt Kneeland Prairie. Comment
  UC30119  Fritillaria recurva W. C. Blasdale 1896-6-9 Humboldt Pilot Ridge Comment
  HSC100211  Fuchsia magellanica J. P. Smith 2009-7-28 12641 Humboldt Arcata; Along St. Louis Road. 16 Comment
  HSC70724  Galium aparine Gail Newton 1980-7-14 1519 Humboldt Near Deadman Ridge 1097 Comment
  UC1196103  Galium aparine Joseph P. Tracy Jul 16 1930-Jul 19 1930 9048 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  UC1222495  Galium aparine Joseph P. Tracy 1950-6-25 18891 Humboldt Burr Valley Comment
  UCSB22663  Galium aparine Jensen, Karen 1965-4-15 Humboldt 0.2 km to the west of Hwy 101 at Miranda turnoff 91 Comment
  JEPS6700  Galium bolanderi Joseph P. Tracy 1927-5-15 8043 Humboldt near the South Fork; Trinity River Valley 182 Comment
  JEPS6703  Galium bolanderi Joseph P. Tracy 1937-7-24 15530 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  RSA273400  Galium bolanderi Thomas W. Nelson, Jane Nelson 1976-7-1 2896 Humboldt North of Bear Creek 1463 Comment
  POM367789  Galium californicum Anstruther Davidson 1919-07 3328 Humboldt Eel River. Comment
  UC175782  Galium californicum subsp. californicum Joseph P. Tracy 1912-7-23 3805 Humboldt along river 5 mi above mouth; Northern Coast Ranges, South Fork Eel River 30 Comment
  UC1196106  Galium californicum subsp. californicum Joseph P. Tracy 1942-5-16 17329 Humboldt along river half way between Miranda and Garberville; S. Fork Eel River 121 Comment
  HSC31221  Galium muricatum D. E. Anderson 1972-6-20 5727 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC61873  Galium parisiense Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan. Comment
  JEPS52748  Galium porrigens var. porrigens Lauramay T. Dempster and G. L. Stebbins 1963-7-10 3863 Humboldt 4.2 mi n Redway (along US 101, w-facing slope above Eel River) 91 Comment
  UC1196080  Galium trifidum Joseph P. Tracy 1903-8-9 1944 Humboldt Eureka Northern Coast Region 0 Comment
  UC602542  Galium trifidum Joseph P. Tracy 1927-7-17 8273 Humboldt lower w foothills of Chaparral Mountain; North Coast Ranges, Three Cabins 457 Comment
  HSC40955  Galium triflorum Linda M. Barker 1976-7-5 1649 Humboldt 3 mi. W of Arcata. Comment
  HSC57191  Galium triflorum Griswold, Butler 1979-7-11 6908 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC57217  Galium triflorum Griswold, Butler 1979-7-12 7289 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  UC168962  Galium triflorum Joseph P. Tracy 1907-6-20 2570 Humboldt Eureka Northern Coast Region 0 Comment
  UC169032  Galium triflorum Joseph P. Tracy 1908-6 2862 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  JEPS6536  Galium triflorum W. L. Jepson 1902-6 1957 Humboldt Redwood Creek Comment
  UC562617  Gamochaeta ustulata Joseph P. Tracy 1936-8-23 15163 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  CAS-BOT-BC200580  Garrya buxifolia Joseph P. Tracy 1935-7-14 14062 Humboldt Horse Mountain 1432 Comment
  HSC72784  Garrya buxifolia M. A. Baker 1980-7-11 2798 Humboldt Near Red Mtn. 1341 Comment
  RSA46715  Garrya buxifolia Doris K. Kildale 1937-8-15 15331 Humboldt High Divide Comment
  CAS-BOT-BC188546  Garrya elliptica Doris K. Kildale 1926-1-3 1464 Humboldt Big Lagoon road near Trinidad Comment
  CAS-BOT-BC188547  Garrya elliptica Doris K. Kildale 1925-12-19 1430 Humboldt Essex -- Lower Mad River Comment
  POM280065  Garrya elliptica Lyman Benson 1929-7-19 1851 Humboldt Mouth of Matole River. Comment
  UCD121106  Garrya elliptica Gordon Leppig 1998-6-26 853 Humboldt McKinleyville, Rt. 101 @ Mad River Overlook. 24 Comment
  OBI14160  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 b Humboldt Trinity River Valley, at Willow crk Comment
  POM212193  Garrya fremontii Carl B. Wolf 1930-10-24 1762 Humboldt Along the Klamath River one mile above mouth of Slate Creek. 244 Comment
  UC502980  Garrya fremontii Joseph P. Tracy 1932-3-6 9773 Humboldt Willow Creek; Northern Coast Ranges, Trinity River Valley 152 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
  CAS-BOT-BC58907  Gaultheria shallon Carl B. Wolf 1931-8-29 1242 Humboldt Near summit of Orick Hill on road to Weithchpec. 304 Comment
  CAS-BOT-BC58915  Gaultheria shallon Doris K. Kildale 1927-9-9 3958 a Humboldt Big Lagoon Comment
  HSC31633  Gaultheria shallon Glenn McGourty 1974-4-27 19 Humboldt Along rd. 1 mi. from Capetown bridge Comment
  HSC38934  Gaultheria shallon Linda M. Barker 1976-5-13 1482 Humboldt 3 mi. W of Arcata. Comment
  HSC59576  Gaultheria shallon Rick Lundquist 1979-5-23 104 Humboldt 3.4 mi. up Fickle Hill Rd. from 11th St. 274 Comment
  JEPS66612  Gaultheria shallon Lincoln Constance 1934-5-31 751 Humboldt n side of (along) Bull Creek, w boundary of Park to Grasshopper Peak (Squaw Creek) Road, South Fork Eel River Bull Creek; Bull Creek Region, South Fork Eel River, Bull Creek Comment
  UC1537150  Gaultheria shallon Gordon H. True Jr. 1936-5-11 468 Humboldt 12 mi w of Miranda 396 Comment
  HSC7814  Gaultheria shallon Neuns 1950-10-9 136 Humboldt 2 mi. W of Thorne 335 Comment
  UC1196969  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1919-9-18 5239 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  POM223145  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1930-7-16 9051 Humboldt North Coast Ranges: South Fork Mountain, open glades along summit near Blake lookout 1738 Comment
  UC505122  Gayophytum humile Joseph P. Tracy 1932-7-11 10424 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  CAS-BOT-BC217408  Gentiana plurisetosa Theodore F. Niehaus 1972-8-29 s.n. Humboldt A few hundred yards east of the town of Hoopa Comment
  UC1198644  Gentiana sceptrum Joseph P. Tracy 1926-10-24 7817 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC8648  Geranium dissectum William J. Ferlatte 1963-5-17 51 Humboldt Waste place, near 11th and B St., Arcata Comment
  RSA0028457  Geranium dissectum H. E. Parks, S. T. Parks 1938-04 24118 Humboldt Spruce Cove, Trinidad. 61 Comment
  CDA42400  Geranium lucidum R. Robison 2014-5-5 s.n. Humboldt In Humboldt Lagoons State Park, along Highway 101 on southbound side. Across from old state highway 102. 0 Comment
  RSA0029454  Geranium oreganum Volney Rattan 1882-06 s.n. Humboldt Van Dusen [Van Duzen] Hills. Comment
  SEINET200731  Gilia capillaris Joseph P. Tracy 1933-7-25 12866 Humboldt Grouse Mtn. 1524 Comment
  CHSC10116  Gilia capitata H. D. Sumner 1959-7-14 Humboldt On road between Hoopa and Redwood Creek. 304 Comment
  HSC45990  Gilia capitata J. P. Smith 1973-5-26 6816 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC35933  Gilia capitata subsp. capitata Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2026 Humboldt French Camp, Bald Hills Comment
  UC1197927  Gilia capitata subsp. capitata Joseph P. Tracy 1939-7-9 16330 Humboldt Snow Camp 1402 Comment
  UC179953  Gilia capitata subsp. capitata Joseph P. Tracy 1914-7-5 4550 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  RSA47173  Gilia capitata subsp. pacifica Doris K. Kildale 1927-5-15 s.n. Humboldt Cape Mendocino Comment
  HSC16989  Gilia millefoliata J. R. Woodside 1963-5-19 3 Humboldt 1 1/4 mi. N of Fairhaven Comment
  HSC37857  Glaux maritima Peter Sorensen 1976-6-2 Humboldt Woodley Island Comment
  UCD132389  Glebionis segetum Lincoln Constance 1934-6-25 927 Humboldt Bull Creek Region, South Fork Eel River, on east side of the road at Englewood across the road from Collins' Englewood Campground. Comment
  CAS-BOT-BC218430  Glehnia littoralis subsp. leiocarpa W. R. Dudley 1899-6-1 s.n. Humboldt Penninsula of Humboldt Bay Comment
  HSC93766  Glyceria declinata Gordon Leppig 1996-5-5 329 Humboldt Arcata, Healthsport parking lot of Union St. 2 Comment
  HSC58634  Glyceria elata Gilbert Muth 1979-7-31 11530 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  HSC99484  Glyceria elata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 143 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
  UC39035  Glyceria elata Harley P. Chandler Jun 1901 1526 Humboldt Klamath River; North Coast Ranges 426 Comment
  HSC10089  Glyceria striata J. P. Tracy 1925-6-13 7086 Humboldt Eureka 0 Comment
  UC552669  Glyceria striata Joseph P. Tracy 1935-7-25 14251 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  JEPS20478  Gnaphalium palustre Joseph P. Tracy 1932-7-13 10513 Humboldt open places at Corral Prairie (in low wet ground); Trinity Summit, Corral Prairie 1584 Comment
  SEINET7010139  Gnaphalium purpureum Wanda P. Vestal, A. G. Vestal 1937-6-20 s.n. Humboldt Near the coast, about 4 miles north of Petrolia. Comment
  POM224403  Gnaphalium sphaericum J. T. Howell 1936-8-29 12888 Humboldt Eel River 16 miles N of Garberville. Comment
  RSA168835  Gnaphalium sphaericum Joseph P. Tracy 1942-7-26 17299 Humboldt On the Redwood House road at old mill site, 1 mile N of Redwood House. Valley of South Yager Creek. 457 Comment
  UC179960  Goodyera oblongifolia Joseph P. Tracy 1914-8-30 4595 Humboldt Ocean Beach at Humboldt Bay, Northern Coast Region Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  CAS-BOT-BC304729  Grindelia hirsutula Joseph P. Tracy 1918-7-7 5038 Humboldt Northern Coast Ranges. Near Garberville 121 Comment
  JEPS82251  Grindelia hirsutula Roger Raiche 1983-7-19 30540 Humboldt along Mattole Road several mi w of Honeydew (2 mi e of Lighthouse Road) Comment
  SBBG62631  Grindelia hirsutula R. Hartwell 1938-8-5 Humboldt Mattole Rd on coast between Capetown and Petrolia, along beach Comment
  UC479505  Grindelia hirsutula Marcus E. Jones, A. M. 1931-7-16 29143 Humboldt Arcata Comment
  OBI37801  Grindelia stricta var. platyphylla David J. Keil 1983-7-1 17281 Humboldt Ca. 7 mi W of Honeydew along Mattole rd Comment
  RSA640949  Grindelia stricta var. stricta R. F. Thorne, Percy C. Everett 1965-8-8 35278 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  HSC100584  Habenaria sparsiflora Carl C. Marshall Jun 1886 315 Humboldt Mud Spring Camp. Comment
  HSC56345  Hackelia bella Griswold, Butler 1979-7-10 6282 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC74384  Hackelia bella M. A. Baker 1980-6-28 2473 Humboldt Near Mad River Buttes 1445 Comment
  HSC101976  Hackelia micrantha M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 873 Humboldt Patterson Meadows 1566 Comment
  CAS-BOT-BC306866  Helenium bolanderi Doris K. Kildale 1929-7-10 8398 Humboldt Big Lagoon Comment
  CAS-BOT-BC306867  Helenium bolanderi L. R. Abrams 1916-7-18 6078 Humboldt Arcata to Trinidad Comment
  HSC96470  Helenium bolanderi Gordon Leppig 1997-6-19 454 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  UC1368467  Hemizonella minima R. K. Gierisch 1969-7-1 3535 Humboldt Grouse Mtn. Six Rivers 1584 Comment
  HSC36492  Hemizonia congesta subsp. clevelandii Thomas W. Nelson, James Nelson 1975-9-3 2192 Humboldt Along N side of Ashfield Butte Comment
  CAS-BOT-BC306183  Hemizonia congesta subsp. congesta J. Clausen 1932-9-18 679 Humboldt 4 miles southwest of Capetown on the road to Petrolia 213 Comment
  UC1223087  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1950-6-25 18902 Humboldt 3 mi s Burr Valley 1158 Comment
  UC642335  Heracleum lanatum Joseph P. Tracy 1934-7-27 13491 Humboldt near mouth Mad River 15 Comment
  HSC76406  Heracleum maximum Denis Kearns 1981-7-23 428 Humboldt Near Whiteys Peak. 1524 Comment
  UCR37532  Hesperevax sparsiflora var. brevifolia L. P. Janeway, Amy Eisenberg 1984-4-25 747 Humboldt North Spit of Humboldt Bay; southeast side of intersection of Samoa and Fairhaven roads, northeast of the willow patch 3 Comment
  HSC32119  Heterocodon rariflorum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5709 Humboldt McKeown Ranch, N of Dinsmore Comment
  SEINET10460664  Heterocodon rariflorum Tracy TRACY 5009 Humboldt WHITE THOME VALLEY Comment
  HSC101543  Heterotheca oregona var. compacta J. P. Smith, J. O. Sawyer 2009-8-3 12643 Humboldt Along the Eel River. 23 Comment
  JEPS2487  Heterotheca oregona var. oregona Joseph P. Tracy 1933-10-15 13097 Humboldt Miranda South Fork of Eel River 121 Comment
  JEPS2421  Heterotheca oregona var. oregona W. L. Jepson 1936-8-12 17875 Humboldt Philipsville, gravel bars and lowest terrace of South Fork Eel River South Fork Eel River Comment
  HSC44335  Heuchera micrantha Brad Klipfel 1975-6-17 676 Humboldt Horse Mtn. Comment
  CDA25406  Heuchera micrantha A. C. Browne Sr. 1980-6-11 37 Humboldt 0 Comment
  UC1222390  Heuchera micrantha Joseph P. Tracy 1950-6-8 18716 Humboldt 2 mi s Ferndale (Wild Cat Road, at the Sand Cut) 304 Comment
  HSC98324  Hieracium albiflorum Jimerson, J. Pageau 1979-5-24 469 Humboldt Near Orleans 226 Comment
  SEINET10839135  Hieracium albiflorum Mary Merello 1993-6-19 Merello 661 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  JEPS36565  Hieracium bolanderi Joseph P. Tracy 1926-6-20 7638 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  CAS-BOT-BC318532  Hieracium greenei Joseph P. Tracy 1935-7-30 14358 Humboldt Salmon Summit 1767 Comment
  UC582422  Hieracium nudicaule Joseph P. Tracy Jul 16 1930-Jul 19 1930 9041 Humboldt near Blake lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  POM118322  Hierochloe occidentalis Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UC1103737  Hierochloe occidentalis Joseph P. Tracy 1934-7-9 13340 Humboldt 3 mi s Harris; Northern Coast Ranges 762 Comment
  UC526829  Hierochloe occidentalis Joseph P. Tracy 1926-4-11 7401 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  CHSC23327  Hippuris vulgaris Robert F. Thorne; P. Everett 1965-8-9 35344 Humboldt Along Hwy. 101 about 3 mi. N of Eureka; in shallow water ca. 1 ft. of ditch along roadside. 1 Comment
  RSA121226  Holcus lanatus H. L. Person 1932-5-11 s.n. Humboldt Near Arcata 0 Comment
  RSA246896  Holcus lanatus R. F. Thorne, P. Everett 1965-8-8 35267 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  RSA603763  Holcus lanatus Joseph A. Ewan 1937-7-2 10454 Humboldt Bull Creek State Park, 2 miles from Dryerville. Comment
  HSC72686  Holodiscus discolor J. P. Smith 1977-7-3 9260 Humboldt Six Rivers National Forest. FS Rd. 13N01, 3 mi. from its junction with Hwy. 36 549 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
  RSA698661  Holodiscus discolor J. R. Bruff 1937-8-17 933 Humboldt Richardson Grove. Comment
  UCD113355  Holodiscus discolor J. Street 1950-6-24 s.n. Humboldt Honeydew. Comment
  CAS-BOT-BC281265  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1933-6-6 12508 Humboldt Trinidad 9 Comment
  HSC102144  Hordeum brachyantherum subsp. brachyantherum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1051 Humboldt Patterson Meadows 1566 Comment
  CAS-BOT-BC284690  Hordeum jubatum Joseph P. Tracy 1927-7-16 8249 Humboldt Northern Coast Ranges. Around Humboldt Bay. Mouth of Elk River 3 Comment
  SEINET200950 Image available Hordeum marinum subsp. gussoneanum Joseph B. Tracy 1935-5-25 13866 Humboldt Fort Seward. Comment
  UC552789  Hordeum marinum subsp. gussoneanum Joseph P. Tracy 1935-5-25 13866 Humboldt Fort Seward 106 Comment
  UCD85874  Hordeum marinum subsp. gussoneanum P. B. Kennedy 1925-8-29 s.n. Humboldt Eureka. Comment
  CHSC97957  Horkelia tridentata subsp. flavescens April A. Allard; Gregory D. O'Connell 2005-6-24 16 Humboldt Roadside meadow. 1648 Comment
  UC659403  Horkelia tridentata subsp. flavescens Lincoln Constance, Alan A. Beetle with Joseph P. Tracy 1940-5-17 2613 Humboldt near Eureka; Larrabee Valley 762 Comment
  HSC63030  Horkelia tridentata var. flavescens J. P. Smith, J. O. Sawyer 1973-5-12 6699 Humboldt 9.6 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC44374  Hosackia crassifolia Thomas W. Nelson, Jane P. Nelson 1977-7-4 3614 Humboldt Along road N of Alder Springs. 1524 Comment
  SBBG3399  Hosackia crassifolia var. crassifolia H. and M. Dearing 1939-5-24 3418 Humboldt pass, Dyerville-Mattole Rd Comment
  HSC100883  Hosackia gracilis Carl C. Marshall Apr 1885 113 Humboldt Coast region everywhere. Comment
  HSC100517  Hosackia purshiana Carl C. Marshall Jun 1885 83 Humboldt Near Bug Creek. 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
  UC1101448  Hydrocotyle ranunculoides Malcolm A. Nobs and S. Galen Smith 1949-8-9 1244 Humboldt Clam Beach Comment
  CDA38356  Hydrocotyle ranunculoides W. F. Cruickshank 1961-5-27 s.n. Humboldt Arcata, Weyerhauser Lumber Co. 0 Comment
  JEPS1633  Hydrophyllum fendleri var. albifrons Joseph P. Tracy 1932-7-15 10602 Humboldt ridges e Corral Prairie; Trinity Summit 1828 Comment
  HSC74204  Hydrophyllum occidentale M. A. Baker 1980-7-19 3007 Humboldt Near Bret Hole. 1814 Comment
  UC213008  Hydrophyllum tenuipes Joseph P. Tracy 1920-5-18 5318 Humboldt Bull Creek Northern Coast Ranges (along Eel River from South Fork to Scotia) 60 Comment
  HSC58018  Hypericum anagalloides G. L. Clifton 1979-7-31 11820 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  SEINET10720053  Hypericum anagalloides Lincoln Constance 1934-6-25 Constance 922 Humboldt Bull Creek Region. Engelwood, 4 miles N of Dyerville and north of the boundary of Humboldt Redeood Park on Redwood Highway. Comment
  CAS-BOT-BC411326  Hypericum calycinum Robert F. Thorne; P. Everett 1965-8-9 35315 Humboldt Clam Beach County Park 3 Comment
  UC1714398  Hypericum formosum var. scouleri Joseph P. Tracy 1913-7 4393 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 30 Comment
  UC1198401  Hypericum perforatum Joseph P. Tracy 1933-11-12 13117 Humboldt along S. Fork Eel R. Miranda; S. Fork Eel R., Miranda 121 Comment
  UC179926  Hypericum perforatum Joseph P. Tracy 1914-9-7 4618 Humboldt On Bald Mt. near Bald Mt. House; Northern Coast Ranges, Bald Mt. 914 Comment
  UC668258  Hypericum perforatum Joseph P. Tracy 1933-7-3 12641 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  HSC90427  Hypochaeris glabra Jean Hanson 1980-6-22 91 Humboldt Indian (Gunther) Island in Humboldt Bay, city of Eureka. W end of island; ca. 100 ft. inland from shore Comment
  CAS-BOT-BC311439  Hypochaeris radicata Doris K. Kildale 1925-7-17 1074 Humboldt Cutten - McDonald Tract - Eureka Comment
  RSA12528  Iliamna latibracteata Carl B. Wolf 1934-7-3 5909 Humboldt Redwood Hwy 3 miles north of Orick (Davison s Ranch on Prairie Creek) 61 Comment
  UC302049 Image available Iliamna latibracteata Joseph P. Tracy 1926-6-12 7585 Humboldt Prairie Creek 152 Comment
Read comments
Feb 27 2012
  HSC55330  Ipomopsis aggregata Griswold, Butler 1979-7-12 7170 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  SEINET4170666  Iris Unknown 1942-5-12 Humboldt Klamath River 2 mi.'s N of Orleans Comment
  JEPS3745  Iris Rimo Bacigalupi with L. Constance, R. Moran, R. L. Rodriguez and S. Carlquist 1951-6-14 3414 Humboldt just below Snow Camp Mountain, about Snow Camp meadow, ridge between Mad River and Redwood Creek (Bald Mountain ridge) 1432 Comment
  CHSC68561  Iris douglasiana Vernon H. Oswald 1997-4-29 8355 Humboldt Humboldt Bay NWR, Hookton Slough Trail on the levee along the south side of Hookton Slough. 0 Comment
  HSC100501  Iris longipetala Carl C. Marshall May 1886 157 Humboldt Everywhere. Comment
  BLMAR542  Iris purdyi Jennifer Wheeler 2009-6-23 542 Humboldt King range, On Paradise Ridge road Comment
  JEPS93199  Iris purdyi Carol A. Wilson 1992-4-26 92 -8 Humboldt 1.5 mi n of Miranda ( 100 ft on Cathey Road from Redwood Drive) 91 Comment
  RSA135821  Iris purdyi E. K. Balls 1957-5-25 22601 Humboldt 0.2 mile west of Trinity-Humboldt County line, along State Highway 36 732 Comment
  RSA135935  Iris purdyi Lee W. Lenz, E. K. Balls 1952-5-12 17193 Humboldt 0.5 mile west of Bridgeville, 23.7 miles east and southeast from Alton along Highway 36 Comment
  HSC65228  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-5-1 441 Humboldt 6.05 mi. N of Hwy. 96 on Ishi Pishi Rd., Orleans Comment
  HSC66484  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-4-27 435 Humboldt FS Rd. 12N20, 0.9 mi. from FS Rd. 15N01, Orleans 762 Comment
  HSC49177  Iris tenuissima J. O. Sawyer 1977-4-23 2847 Humboldt Bluff Creek Campground Comment
  JEPS79909  Isatis tinctoria Joseph P. Tracy 1939-4-29 16239 Humboldt Klamath River at mouth of Slate Creek; Klamath River, Slate Creek 121 Comment
  RSA183615  Isatis tinctoria D. E. Anderson 1965-5-1 3569 Humboldt Slides along Hwy 96 and Klamath River about 3-4 miles E of Weitchpec. Comment
  CAS-BOT-BC88654  Isatis tinctoria J. H. Thomas 1949-6-12 900 Humboldt Near Klamath River, about 0.5 mile north of town of Orleans. Comment
  JEPS63980  Isolepis setacea Joseph P. Tracy 1917-6-17 4817 Humboldt Salmon Creek Valley Northern Coast Ranges, Humboldt Bay, Salmon Creek Valley (around Humboldt Bay) 30 Comment
  HSC98028  Isolepis setacea Cara Witte 2007-7-11 494 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  HSC13941  Ixia maculata R. van Weemen van Noord 1966-4-16 19 Humboldt 100 yds. S of N end of Samoa Drag St. 9 Comment
  CAS-BOT-BC340159  Jaumea carnosa Marcus E. Jones 1931-7-16 29118 Humboldt Arcata Comment
  HSC37499  Jaumea carnosa J. D. Ackerman 1975-8-2 617 Humboldt Hwy. 101 between Arcata and Eureka. Humboldt Bay across from Murray Field Comment
  UC665529  Jaumea carnosa H. E. Parks 1941-8-1 24187 Humboldt Big Lagoon Comment
  CDA8060  Jaumea carnosa T. C. Fuller 1961-9-27 7044 Humboldt West of Highway 101, 1 mile north of Indianola Road, 5 miles north of Eureka. 0 Comment
  OBI36620  Jaumea carnosa David J. Keil 1983-7-2 17300 Humboldt Humboldt Bay salt marsh at Arcata Corp Yard Comment
  HSC44315  Juncus balticus subsp. ater Thomas W. Nelson, Jane Nelson 1977-9-3 3737 Humboldt Head of Bear Creek 1585 Comment
  POM126145  Juncus bolanderi Joseph P. Tracy 1924-7-13 6730 Humboldt Big Lagoon. 6 Comment
  UC2494  Juncus bolanderi H. N. Bolander June 1867 6584 Humboldt near Elk Ridge Comment
Read comments
Jul 31 2010
  UC726591  Juncus bufonius A. A. Heller 1923-7-10 13798 Humboldt between Scotia and Pepperwood; Eel River Comment
  POM208990  Juncus bufonius Lincoln Constance 1934-6-12 862 Humboldt S Fork of Eel River, N end of Dyerville bridge, Humboldt Redwood Park. 46 Comment
  SEINET6333123  Juncus bufonius S. T. Parks, H. E. Parks 24254 Humboldt North Coast Ranges, Spruce Cove, Trinidad 61 Comment
  HSC78252  Juncus bufonius var. bufonius L. P. Janeway, Paul Wilson 1984-5-25 820 Humboldt N Spit of Humboldt Bay; BLM lands near the Coast Guard Station 5 Comment
  HSC97306  Juncus covillei M. Mesler 2007-7-15 785 Humboldt Near Grouse Mtn., 0.9 mi. S of NF 1 on FS Rd. 5N04 1582 Comment
  HSC97983  Juncus covillei Cara Witte 2007-7-11 496 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  HSC14018  Juncus ensifolius H. E. Parks Jun 1934 5274 Humboldt Spruce Cove, Trinidad Comment
  UC1152096  Juncus ensifolius Joseph P. Tracy 1937-8-7 15619 Humboldt about 1 mi n Murphy Meadow (e of Korbel); Bald Mountain Comment
  HSC39048  Juncus falcatus Linda M. Barker 1976-6-22 1623 Humboldt 3 mi. W of Arcata Comment
  UC1103036  Juncus falcatus subsp. sitchensis Joseph P. Tracy 1906-5-13 2458 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  HSC91872  Juncus hesperius E. Mackey 1987-8-28 Humboldt Patrick's Point State Park, Palmer's Point Comment
  UCSC000127  Juncus hesperius Unknown 1975-4-21 59 Humboldt 2 miles N.W. of Fortuna - Rohnerville Comment
  HSC102215  Juncus mertensianus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1131 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  RSA246772  Juncus nevadensis var. inventus Robert F. Thorne, Percy C. Everett 1965-8-9 35312 Humboldt Big Lagoon. 3 Comment
  UC183768  Juncus occidentalis Joseph P. Tracy 1911-7-7 3369 Humboldt 3 mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  HSC58005  Juncus parryi G. L. Clifton, Griswold 1979-7-31 11791 Humboldt Near the Trinity Summit Guard Station, close to the town of Hoopa. 1804 Comment
  HSC67457  Juncus patens J. P. Smith 1971-10-9 5034 Humboldt Mad River above the Fish Hatchery. Comment
  HSC85846  Juncus phaeocephalus var. phaeocephalus L. P. Janeway 1983-9-24 698 Humboldt S side of Big Lagoon at county camp ground, 10-30 ft. from water line 3 Comment
  RSA168869  Juncus phaeocephalus var. phaeocephalus Joseph P. Tracy 1934-7-13 13391 Humboldt Dow s Prairie. 61 Comment
  SEINET10796051 Image available Juncus tenuis Unknown 1883-1 Rattan s.n. Humboldt Comment
  UC1225905  Kalmia polifolia subsp. microphylla Joseph P. Tracy 1942-6-23 17262 Humboldt Trinity Summit, at Water Dog Lakes Water Dog Lakes; Trinity Summit, Water Dog Lakes 1889 Comment
  CAS-BOT-BC235884  Keckiella corymbosa H. L. Mason 1928-7-14 4900 Humboldt East Fork of the Eel River near Garberville Comment
  RSA79773  Keckiella corymbosa F. W. Peirson 1926-7-13 7060 Humboldt Mad River, near Blue Lake. Comment
  UC1222789  Keckiella corymbosa Joseph P. Tracy 1950-8-20 19315 Humboldt opposite mouth of Salmon River (at Ishi-Pishi Falls, w side of Klamath River); Klamath River Comment
  UC413904  Keckiella corymbosa C. M. Goethe 1930-8-13 Humboldt Eel River Comment
  UC1196076  Kelloggia galioides Joseph P. Tracy 1919-9-19 5257 Humboldt Trinity Summit; Northern Coast Ranges 1889 Comment
  RSA246668  Kickxia elatine Robert F. Thorne, Percy C. Everett 1965-8-8 35262 Humboldt N. edge of Eureka, E. of Hwy. 101 5 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
  UC552225  Lactuca biennis Joseph P. Tracy 1935-7-21 14118 Humboldt mouth Bremer Creek (near Willow Creek); Trinity River Valley 152 Comment
  UC249879  Lactuca serriola Joseph P. Tracy 1923-9-23 6561 Humboldt Alton Northern Coast Region 30 Comment
  RSA170207  Lactuca serriola Joseph P. Tracy 1949-8-8 18402 Humboldt Frank Graham's orchard; Trinity River Valley, at Willow Creek. 152 Comment
  UC169348  Lagophylla ramosissima Joseph P. Tracy 1912-8-3 3966 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  JEPS79915  Lamium amplexicaule Joseph P. Tracy 1934-7-12 13380 Humboldt Eureka 30 Comment
  CDA5658  Lamium purpureum B. F. Kemp 1958-4-11 344 -58 Humboldt County Road 512, near sawmill. 0 Comment
  UC204782  Lapsana communis Joseph P. Tracy 1918-6-23 4957 Humboldt outskirts of Arcata, around Humboldt bay Northern Coast Ranges, Humboldt Bay 60 Comment
  CDA18209  Lasthenia californica G. D. Barbe, T. C. Fuller 1974-6-17 1836 Humboldt North Coast Ranges; Lower Pacific Drive, S of sewage plant, W of golf course, at Sail Court, Shelter Cove. 60 Comment
  HSC5135  Lasthenia californica G. N. Bos 1965-5-15 261 Humboldt 3 mi. W of Berry Summit along U.S. 299 610 Comment
  UC1199135  Lasthenia californica subsp. californica Joseph P. Tracy 1932-5-1 9856 Humboldt Redway 182 Comment
  CAS-BOT-BC213491  Lathyrus jepsonii subsp. californicus Alice Eastwood; John Thomas Howell 1937-6-23 4769 Humboldt Near Dinsmore's. Comment
  UC1222400  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1946-5-4 17523 Humboldt w side near sw corner Hoopa Valley Comment
  POM277522  Lathyrus littoralis Lyman Benson 1928-7-10 s.n. Humboldt Clam Beach, Trinidad. 12 Comment
  RSA90281  Lathyrus littoralis F. W. Peirson 1923-7-11 3623 Humboldt 18 miles north of Eureka. Comment
  HSC75457  Lathyrus nevadensis var. nevadensis J. O. Sawyer 1980-7-18 3584 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC709416  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1935-7-25 14247 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  UCD106342  Lathyrus polyphyllus A. Murphy 1951-5-15 s.n. Humboldt Half mile S. of South Fork on McCann Road. Comment
  BLMAR279  Lathyrus polyphyllus Jennifer Anthony-Wheeler 1999-5-28 279 Humboldt King range, growing alongside prosper ridgee rd on strawberry rock allot 304 Comment
  UCD106344  Lathyrus polyphyllus W. Williams 1951-1 s.n. Humboldt location unknown. Comment
  HSC75555  Lathyrus torreyi J. O. Sawyer, J. Cole 1977-7-3 3004 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  SBBG3374  Lathyrus vestitus H. and M. Dearing 1939-5-24 3420 Humboldt Dyerville-Mattole Rd Pass, W of Panther Gap Comment
  CAS-BOT-BC325930  Layia carnosa Joseph P. Tracy 1917-5-30 4796 Humboldt Sand dunes at mouth of Little River. 6 Comment
  UC34742  Layia carnosa C. C. Marshall 1885-1-1 Humboldt Comment
  UC581805  Layia gaillardioides Joseph P. Tracy 1936-6-9 14875 Humboldt Bear River Ridge 609 Comment
  CAS-BOT-BC380899  Layia platyglossa Volney Rattan 1877-4-10 196 Humboldt Eureka Comment
  CAS-BOT-BC274330  Leersia oryzoides Henry M. Pollard 1947-8-7 s.n. Humboldt Klamath River's edge nr. woods on placer mine, Orleans region Comment
  UC1239531  Leontodon saxatilis subsp. saxatilis Joseph P. Tracy 1921-7-10 5848 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC161582  Lepidium latipes Joseph P. Tracy 1902-6-3 1644 Humboldt near Harris (hill top at Spruce Grove); Northern Coast Ranges, Spruce Grove 914 Comment
  CAS-BOT-BC12701  Lepidium oblongum Volney Rattan 1879-1-1 s.n. Humboldt Unspecified. Comment
  UC205477  Lepidium virginicum var. pubescens Joseph P. Tracy 1919-5-31 5145 Humboldt near Willow Creek mouth (tributary of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  JEPS20619  Lessingia nemaclada Joseph P. Tracy 1937-9-5 15681 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC94818  Leucanthemum vulgare R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-6-6 837 Humboldt Humboldt Redwoods S.P., Pole Line Prairie along Pole Line Road, 1 air mi. N of Mattole Rd., 6 mi. E of Hwy. 101 274 Comment
  HSC91923  Leucanthemum vulgare E. Mackey 1986-7-21 Humboldt Patrick's Point State Park near Ceremonial Rock. Comment
  HSC39423  Lewisia triphylla Thomas W. Nelson, Jane P. Nelson 1976-6-15 2725 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  RSA34294  Leymus mollis subsp. mollis J. Wendell Howe 1933-5-23 s.n. Humboldt Somoa Comment
  SD51274  Ligusticum apiifolium Darley F. Howe 1961-8-2 3614 Humboldt 24 miles east of Orick on Bald Mountain Road. 915 Comment
  UC1197173  Ligusticum apiifolium Joseph P. Tracy 1949-8-20 18514 Humboldt n.e. Hawkins Bar (Happy Camp Mt.); Trinity Summit Range, Happy Camp Mt. 1280 Comment
Read comments
Jun 30 2007
  UC1222812  Ligusticum apiifolium Joseph P. Tracy 1950-9-10 19354 Humboldt Bear R. Ridge 609 Comment
  UC642246  Ligusticum apiifolium Joseph P. Tracy 1937-8-15 15666 Humboldt 4 mi. e. Orick (Gans Prairie); Gans Prairie 548 Comment
  SEINET12047013  Lilium columbianum F. H. Utech 1978-1 78 -260 Humboldt ca 2.5 km S of Del Norte/Humboldt County line on US 101 Comment
  CAS-BOT-BC130646  Lilium kelloggii Alice Eastwood; John Thomas Howell 1937-6-23 4851 Humboldt 5 miles from Kneeland on road to Korbel Comment
  CAS-BOT-BC130647  Lilium kelloggii Albert M. Vollmer; Ira L. Wiggins 1940-7-4 6 Humboldt On Orick-Weitchpec road, 15 miles west of Weitchpec 944 Comment
  RSA130331  Lilium kelloggii Albert M. Vollmer, L. Beane 1953-07 119 Humboldt Freshwater Comment
  RSA256730  Lilium kelloggii A. Montalvo, J. D. Akerman 1974-8-1 399 Humboldt 1 mile west of Kneeland P.O. on Greenwood Heights Road Comment
  HSC33664  Lilium occidentale Doris K. Niles, Thomas W. Nelson 1974-6-20 Humboldt Wiggins Ranch, W of garbage dump Comment
  UC1035025  Lilium occidentale A. M. Vollmer and L. Beane Jul 1953 118 Humboldt Comment
  UC175928  Lilium occidentale Joseph P. Tracy 1912-6-16 3705 Humboldt near Indianola (on Table Bluff); Northern Coast Region, Humboldt Bay Region 0 Comment
  UC666959  Lilium occidentale Joseph P. Tracy 1927-9-25 8377 Humboldt 2 mi s Field's Landing (at Still's Ranch) 6 Comment
  HSC102166  Lilium pardalinum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1076 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC130731  Lilium pardalinum Doris K. Kildale 1925-7-4 994 Humboldt Upper Willow Creek Canyon 640 Comment
  UC1198236  Lilium pardalinum Joseph P. Tracy 1914-7-4 4528 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC57160  Lilium pardalinum subsp. pardalinum Overton, Butler 1979-7-26 9959 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  HSC74323  Lilium pardalinum subsp. pardalinum Gail Newton 1980-7-20 1621 Humboldt Near Bell Swamps 1426 Comment
  HSC98357  Lilium vollmeri T. Jimerson, J. Pageau 1979-6-22 600 Humboldt Near Bee Mtn., close to the town of Orleans 656 Comment
  RSA44370A  Lilium washingtonianum Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mountain 1677 Comment
  HSC35754  Lilium washingtonianum subsp. purpurascens Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1998 Humboldt French Camp, Bald Hills. Comment
  HSC97994  Lilium washingtonianum subsp. purpurascens Cara Witte 2007-7-9 460 Humboldt Forest Service Road 4N32. 1.25 miles south of intersection with 4N32E. 1430 Comment
  UC1198250  Lilium washingtonianum subsp. purpurascens Joseph P. Tracy 1913-7-20 4366 Humboldt ridge between Redwood Creek and Willow Creek (on Willow Creek road); Northern Coast Ranges 914 Comment
  OBI12584  Limnanthes douglasii Carl B. Wolf 1937-6-14 8818 Humboldt North Coast Range, Kneeland Prairie 823 Comment
  BLMAR501  Limnanthes douglasii Jennifer Wheeler 2009-4-30 501 Humboldt King range, Hidden Valley trail; trail forward Comment
  HSC1801  Limonium californicum William J. Ferlatte, B. D. Rogers 1966-8-15 3126 Humboldt Near Arcata sewage pond, N Humboldt Bay. Comment
  JEPS58273  Linanthus bolanderi Lincoln Constance 1934-6-15 890 Humboldt few yds s Lookout (on summit of ridge of Grasshopper); South Fork Eel River, Bull Creek Region, Grasshopper Comment
  HSC100667  Linaria canadensis Carl C. Marshall Jun 1886 237 Humboldt Trinidad. Comment
  UC1442907  Listera cordata Theodore F. Niehaus 1970-4-14 914 Humboldt ca. 5 mi w Yager-Bridgeville road (on Redwood House road) Comment
  UC54690  Lithocarpus densiflorus Mrs. M. H. Manning Oct 1901 Humboldt near Hupa Comment
  CAS-BOT-BC36101  Lithocarpus densiflorus var. densiflorus L. B. Kildale 1930-8-10 10536 Humboldt Snow Camp, head of Redwood Creek Comment
  CAS-BOT-BC36105  Lithocarpus densiflorus var. densiflorus Nancy Ryan Zabriskie; Walter Zabriskie 1973-6-10 676 Humboldt Pearch Creek campground by the Klamath River 137 Comment
  CHSC40210  Lithophragma affine L. P. Janeway 1984-5-13 779 Humboldt Along Redwood House Road 1 1/2 mi from the Kneeland/Bridgeville Road. Along South Fork Yager Creek. 762 Comment
  UC154139  Lithophragma campanulatum Mrs. M. H. Manning May 1902 Humboldt near Hupa; near Hupa Comment
  HSC97104  Lithophragma campanulatum Yun Chan, Renee Meyer, Sophary Yun 2007-6-13 10 Humboldt 1 mi. E of Hwy. 299 on F.S. Rd. NF1; Grouse Mtn. Meadow 1585 Comment
  UC11920  Lithophragma glabrum J. Burtt Davy 1899-6-23 5795 Humboldt Trinity Summit; North Coast Ranges, Trinity Summit 2133 Comment
  HSC32143  Lithophragma heterophyllum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5607 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  JEPS20909  Logfia gallica Joseph P. Tracy 1935-5-30 13914 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  UC582504  Logfia gallica Joseph P. Tracy 1935-5-30 13914 Humboldt Willow Creek, Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC283405  Lolium multiflorum Carl B. Wolf 1927-8-29 1215 Humboldt Seacoast, Devil's Gate, S of Cape Mendocino Comment
  HSC58408  Lolium perenne Griswold, Butler 1979-7-10 7123 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  SEINET5527019 Image available Lomaria spicant Hicks, Carpenter 1977-7-12 Humboldt Orick Comment
  SEINET189441  Lomatium dissectum Lincoln Constance, Alan A. Beetle; Joseph P. Tracy 1940-5-17 2617 Humboldt Lower slopes of Buck Mountain; near Eureka. 792 Comment
  HSC70249  Lomatium macrocarpum M. A. Baker 1980-6-8 1914 Humboldt Near Buck Flat. 1554 Comment
  HSC36117  Lomatium macrocarpum J. D. Ackerman 1975-6-18 471 Humboldt Big Hill Rd., 10.4 mi. E of Hoopa and Hwy. 96 Comment
  UC642329  Lomatium macrocarpum Joseph P. Tracy 1933-7-25 12894 Humboldt Grouse Mt. 1524 Comment
  HSC48474  Lomatium triternatum J. P. Smith, J. O. Sawyer, J. Cole 1978-5-21 9933 Humboldt Six Rivers Natl. Forest, along Ishi Pishi Rd., 1.5 mi. from the Ishi Pishi Bridge over the Klamath River 305 Comment
  OBI8842  Lomatium utriculatum Tracey Call, Viola Call 1964-6-19 2271 Humboldt 1 mi north of Harris P.O. and ca 3-1/2 mi south of Harris Jct Comment
  JEPS12869  Lonicera ciliosa Joseph P. Tracy 1921-10-16 5876 Humboldt viz. ridge n Willow Creek (between Willow and Campbell Creeks); Northern Coast Ranges, Brannan Mountain 944 Comment
  HSC102012  Lonicera conjugialis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 913 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC58297  Lonicera conjugialis Walter Overton, Marvin Butler 1979-8-2 12570 Humboldt Near Bret Hole, close to the town of Hoopa. 1554 Comment
  HSC99456  Lonicera conjugialis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 108 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
  HSC72627  Lonicera hispidula var. vacillans J. P. Smith, J. O. Sawyer 1977-7-1 Humboldt Six Rivers National Forest, Bluff Creek Campground. 76 Comment
  UC1239553  Lonicera hispidula var. vacillans Joseph P. Tracy 1923-10-14 6572 Humboldt 5 mi n Blocksburg; Larrabee Creek 457 Comment
  SD88367  Lonicera involucrata Darley F. Howe 1972-5-7 Humboldt Trinidad head light station. Comment
  UCD137382  Lonicera involucrata Gordon Leppig 1998-6-26 857 Humboldt McKinleyville, Hammond Trail, 100 m south of Knox Cove. 18 Comment
  CAS-BOT-BC241491  Lonicera involucrata var. ledebourii C. Hart Merriam 1922-7-4 s.n. Humboldt Fortuna Comment
  CHSC31282  Lonicera involucrata var. ledebourii Mark Stopher 1980-4-11 47 Humboldt Occasional in brushy areas along Elk River. 1 Comment
  HSC31630  Lonicera involucrata var. ledebourii Glenn McGourty 1974-8-27 16 Humboldt About 1 mi. from Capetown bridge. Comment
  HSC31737  Lonicera involucrata var. ledebourii Donald Spalinger 1974-4-20 15 Humboldt Across from 1756 Ridgewood Dr. 122 Comment
  HSC89542  Lonicera involucrata var. ledebourii M. Roantree 1985-4-25 2 Humboldt E side of Trinidad Head. Comment
  RSA168891  Lotus crassifolius Joseph P. Tracy 1936-6-9 14914 Humboldt Near panther Gap, on the Bull Creek-Mattole Road. Comment
  JEPS8440  Lotus denticulatus Rimo Bacigalupi with L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-13 3405 Humboldt 4 mi w bridge crossing the Van Duzen River (along State Highway 36, Dinsmore); Van Duzen River, Dinsmore Comment
  JEPS51821  Lotus nevadensis var. nevadensis W. L. Jepson 1902-7-3 1979 Humboldt Three Creeks to Willow Creek Comment
  UC1223422  Lotus pinnatus Joseph P. Tracy 1937-7-3 15375 Humboldt opposite Willow Creek; Trinity River Valley Comment
  UC1223424  Lotus pinnatus Joseph P. Tracy 1942-6-15 17134 Humboldt Englewood Prairie Comment
  JEPS55767  Lotus purshianus var. purshianus Mrs. M. H. Manning 1900-1 Humboldt Hupa Valley Comment
  JEPS55784  Lotus purshianus var. purshianus Joseph P. Tracy 1918-7-5 5015 Humboldt White Thorne Valley Northern Coast Ranges 304 Comment
  HSC38527  Lotus unifoliolatus var. unifoliolatus D. E. Anderson, J. P. Smith 1971-6-18 - 1069 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  UC1197304  Lotus wrangelianus Joseph P. Tracy 1927-7-24 8303 Humboldt 3 mi s Point of Cape; Northern Coast Ranges, Cape Mendocino 3 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
  HSC74810  Luina hypoleuca Gail Newton 1980-7-23 1725 Humboldt Near Packsaddle Ridge 1463 Comment
  JEPS82250  Luina hypoleuca Roger Raiche 1983-7-19 30536 Humboldt w side Saddle Mt. (King Mt. Trail Road); King Mt. Range, Saddle Mt. 853 Comment
  HSC58675  Lupinus adsurgens var. undulatus Gilbert Muth 1979-8-1 12180 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC503003  Lupinus albicaulis var. shastensis Joseph P. Tracy 1932-6-14 10161 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  CDA27368  Lupinus albifrons var. collinus K. Eickhoff, C. M. Witte 2005-6-24 15 Humboldt Approximately 13 miles south of Highway 299 on NF1. Comment
  HSC14778  Lupinus arboreus R. A. Rasp 1964-5-17 39 Humboldt 1/2 mi. N of Fairhaven on the Samoa pennisula Comment
  RSA331967  Lupinus arboreus var. arboreus Dave Kelly, Walter Wisura, A. Kelly 1985-7-28 4065 Humboldt Outer sand dunes near Manilla, Samoa Peninsula near Eureka Comment
  UC1197275  Lupinus bicolor Joseph P. Tracy 1939-4-18 16219 Humboldt Garberville 152 Comment
  HSC101035  Lupinus elmeri A. Thoele, Sydney Carothers 1995-7-14 57 Humboldt Six Rivers National Forest; .6 mi. south of intersection of Forest Route 1 & Rd. 3N06, on the edge of Route 1. 1720 Comment
  UC1223265  Lupinus latifolius var. latifolius Joseph P. Tracy 1939-7-9 16339 Humboldt Snow Camp Comment
  RSA26960  Lupinus luteolus C. Leo Hitchcock, J. S. Martin 1939-7-11 5421 Humboldt 65 miles E of Arcata, bank near road. 457 Comment
  UC33564  Lupinus luteolus Chestnut and Drew 1888-7-11 Humboldt Jarmyan's Comment
  HSC39420  Lupinus lyallii var. villosus Thomas W. Nelson, Jane P. Nelson 1976-6-15 2710 Humboldt Along Trail from lookout to Blocksburg 1524 Comment
  UCD109339  Lupinus pachylobus W. Williams 1951-1 s.n. Humboldt Bear Creek Valley. Comment
  JEPS65425  Lupinus polyphyllus Kate Jared Stirring 1923-6-5 Humboldt Arcata Comment
  UC180172  Lupinus rivularis Joseph P. Tracy 1914-6-14 4507 Humboldt Hydesville; Northern Coast Ranges, Hydesville 60 Comment
  UC503017  Lupinus rivularis Joseph P. Tracy 1927-6-18 8189 1/2 Humboldt Capetown; Northern Coast Ranges, Capetown 304 Comment
  SEINET10450622  Lupinus sellulus var. lobbii Thomas W. Nelson, Jane P. Nelson 1976-6-15 Nelson 2710 Humboldt Growing on serpentine along old trail from lookout to blocksburg. 1524 Comment
  UC502994 Image available Lupinus tracyi Joseph P. Tracy 1932-7-15 10598 Humboldt ridges e Corral Prairie; Klamath Mountains; ridges E of Corral Prairie, Trinity Summit, Klamath Mts., Humboldt Co. 1828 Comment
  SD53197  Lupinus variicolor Darley F. Howe 1962-5-21 Humboldt 11.5 miles north of Garberville on Hwy 101 91 Comment
  HSC27555  Luzula comosa J. D. Ackerman 1973-3-27 36 Humboldt 1.5 mi. N of Manila Comment
  HSC58111  Luzula comosa G. L. Clifton, Griswold 1979-8-1 12062 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC74684  Luzula comosa Gail Newton 1981-8-7 2471 Humboldt Near Board Camp Mtn. 1478 Comment
  HSC85902  Luzula comosa Barry Silver 1986-4-23 533 Humboldt Bair Rd., 10 mi. NW of junction with Hwy. 299: Pine Ridge Summit Area 997 Comment
  CAS-BOT-BC436735  Luzula comosa var. laxa Doris Kildale Gillespie 1931-6-7 10661 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  UC1103679  Luzula comosa var. laxa Joseph P. Tracy 1918-5-12 4930 Humboldt Northern Coast Ranges at Eureka. Edge of woods near Cutten and McDonald Tract 0 Comment
  CHSC118269  Luzula macrantha Peter F. Zika 2011-7-3 25499 Humboldt Titlow Hill Road, 4.2 road miles SE of Route 299 at Berry Summit, 0.8 air km SSW of Horse Mountain. Outer North Coast Ranges (NCoRO). 1390 Comment
  HSC48994  Luzula multiflora subsp. multiflora M. A. Baker 1979-5-23 754 Humboldt Comment
  UC3007  Luzula parviflora Harley P. Chandler May, 1901 1163 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  RSA69739  Luzula parviflora F. W. Peirson 1923-7-11 3673 Humboldt About 3 miles north of Orick. Comment
  UC184975  Luzula parviflora Joseph P. Tracy 1908-7-16 2877 Humboldt opposite Buck Mountain (in valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River, Dinsmore's 762 Comment
  UCSB25509  Luzula parviflora Breedlove, Dennis 1962-6-8 Humboldt along U.S. Highway 101; 8 miles north of Orick 60 Comment
  UCSB12371  Lysichiton americanus Dearing, Hugh; Dearing, Margaret 1939-5-25 Humboldt Near Samoa Comment
  HSC3242  Lysichiton americanus J. W. Johnson 1962-2-26 1161 Humboldt Along Lanphere Lane, Samoa Peninsula Comment
  CAS-BOT-BC334475  Madia Robert F. Thorne; P. Everett 1965-8-7 35216 b Humboldt Samoa Peninsula, elev near sea level. 0 Comment
  CAS-BOT-BC342805  Madia elegans S. K. Harris; J. P. Tracy; H. S. Yates 1936-6-17 3483 Humboldt Highway about one mile west of Bridgeville Comment
  CAS-BOT-BC342799  Madia elegans Richard Snow 1957-8-31 306 Humboldt 4 miles north of Garberville at Dean Creek Lodge Comment
  CAS-BOT-BC342802  Madia elegans J. Clausen 1932-9-18 688 Humboldt 8.2 miles west of Bull Creek Store; near summit of ridge 914 Comment
  UC89451  Madia elegans unknown Humboldt Jarnigans Comment
  RSA167397  Madia elegans subsp. elegans Joseph P. Tracy 1947-7-9 17827 Humboldt Horse Mountain 1067 Comment
  RSA21082  Madia exigua C. B. Wolf 1937-6-19 8910 Humboldt Van Duzen River, 0.3 mi. above Bridgeville. 122 Comment
  HSC74211  Madia gracilis M. A. Baker 1980-7-15 2961 Humboldt Near Whiting Ridge. 1341 Comment
  JEPS40364  Madia gracilis Lincoln Constance 1934-5-29 728 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  UC495629  Madia gracilis Joseph P. Tracy 1927-7-4 8229 Humboldt Lawrence Creek, at crossing of the Kneeland Road 609 Comment
  POM362198  Madia minima Thomas W. Nelson, Jane P. Nelson 1977-7-4 3608 Humboldt Along road north from Alder Spring 1555 Comment
  RSA376908  Maianthemum dilatatum Maude Minthorn s.n. Humboldt Ferndale Comment
  CAS-BOT-BC508504  Maianthemum dilatatum Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC60294  Maianthemum dilatatum Phyllis Krieg 1979-4-28 Humboldt Azalea Park along trail, McKinleyville 30 Comment
  RSA232642  Maianthemum dilatatum Larry E. DeBuhr, Gary D. Wallace 1972-5-22 606 Humboldt About 25 miles north of Arcata on the south end of Big Lagoon. Comment
  UCD69911  Maianthemum dilatatum D. Sanchez-Mata 1998-6-10 s.n. Humboldt Trinidad-Klamath Glenn. Prairie Creek State Park. Prairie Creek Trail. Temperate coast redwood forests with Sitka spruce: Tsugo heterophyllae-Sequoietum sempervirentis Rivas-Martinez, M. Costa and Sanchez-Mata 1998. 125 Comment
  HSC98721  Maianthemum racemosum subsp. amplexicaule Cara Witte 2008-7-11 874 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  HSC70326  Maianthemum stellatum M. A. Baker 1980-6-8 1881 Humboldt Near Buck Flat. 1554 Comment
  RSA289951  Maianthemum stellatum Lincoln Constance 1934-6-2 783 Humboldt Bull Creek road to mouth of Bull Creek, and up Bull Creek. Bull Creek region, South Fork Eel River Comment
  HSC100442  Malacothrix obtusa Carl C. Marshall Jun 1887 458 Humboldt Near Harris. Comment
  CAS-BOT-BC140134  Malus fusca C. B. Wolf 1930-10-26 1766 Humboldt So. edge of Big Lagoon near the Redwood Highway Bridge 3 Comment
  HSC18699  Malus fusca J. W. Bosworth 1965-5-7 41 Humboldt 1/2 mi. S of Samoa Comment
  HSC47495  Marah oregana Sheila Logan 1978-4-9 19 Humboldt Fieldbrook, 0.5 mi. E of McKinleyville on Murray Rd. 122 Comment
  HSC7032  Marah oregana G. N. Bos 1965-5-15 268 Humboldt 2 mi. W of Berry Summit along U.S. 299. 701 Comment
  HSC89477  Marah oregana P. A. Daly 1986-3-12 89 Humboldt Trinidad Head 61 Comment
  OBI35884  Marah oregana David J. Keil 1983-7-1 17293 Humboldt Between Ferndale and Bear River Ridge Rd along Mattole Rd Comment
  HSC73463  Marah oregana Grunert 37 Humboldt Jolly Giant Creek, Arcata city limit, on Jolly Giant Rd. near HSU Comment
  HSC71442  Medicago lupulina J. P. Smith 1971-10-9 5003 Humboldt Mad River above the Fish Hatchery. 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
  UC526915  Melica bulbosa Joseph P. Tracy 1932-7-12 10445 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC10337  Melica californica J. A. Waller 1965-5-2 31 Humboldt Along Hwy. 96 near Willow Creek. Comment
  UC1103760  Melica californica Joseph P. Tracy 1950-6-15 18780 Humboldt 5 mi n Harris; Mail Ridge 944 Comment
  UC1103761  Melica fugax Joseph P. Tracy 1913-6-17 4193 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  HSC74231  Melica harfordii M. A. Baker 1980-7-15 2984 Humboldt Near Whiting Ridge. 1341 Comment
  UCD87370  Melica harfordii A. A. Beetle; G. L. Stebbins Jr. 1942-6-1 3453 Humboldt 2 miles north of Orleans. Klamath River. Comment
  HSC75480  Melica subulata J. O. Sawyer 1980-7-18 3627 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC14248  Mentha canadensis Paul Shields 1955-10-7 Humboldt Essex Pond, near Fieldbrook Comment
  UC1239695  Mentha pulegium Joseph P. Tracy 1934-8-14 13566 Humboldt Eel River Alton to Fortuna (on gravel bars); Eel River 15 Comment
  UC577382  Mentha pulegium Joseph P. Tracy 1930-9-1 9175 Humboldt South Fork of Eel River Miranda; South Fork of Eel River 121 Comment
  HSC22008  Mentha pulegium Thomas W. Nelson 1970-10-18 250 Humboldt Beside Hwy. 101, 100 yds. N of bridge over Mad River Comment
  UCSB30615  Mentha pulegium Edwards, David 1974-8-1 Humboldt East side of dirt road on E. bank of Mad River near its junction with Puter Creek, ca. 2 mi. SW of Korbel 27 Comment
  UC1222666  Mentha spicata Joseph P. Tracy 1950-9-22 19370 Humboldt 8 mi below Orleans (Klamath River near Slate Creek); Klamath River near Slate Creek 121 Comment
  SEINET12277649  Mentha spicata J. P. Tracy 1950-1 19370 Humboldt Klamath River, near Slate Creek, Below Orleans 8 miles 122 Comment
  HSC77389  Menziesia ferruginea subsp. ferruginea L. P. Janeway 1983-5-3 258 Humboldt Community Forest Main Access Rd., E of HSU 168 Comment
  CAS-BOT-BC428985  Micranthes ferruginea Joseph P. Tracy 1935-7-24 14186 Humboldt Trinity Summit. Near Ranger Station 1828 Comment
  HSC38098  Micropus californicus var. californicus Thomas W. Nelson, James Nelson 1976-5-30 2621 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1239517  Microseris bigelovii Joseph P. Tracy 1922-5-28 6057 Humboldt Little River Beach Northern Coast Ranges 6 Comment
  CAS-BOT-BC348834  Microseris douglasii subsp. douglasii K. L. Chambers 1969-5-25 2923 Humboldt On road to Harris 5.2 mi. E of the freeway overpass at Garberville Comment
  CAS-BOT-BC322679  Microseris laciniata Doris K. Kildale 1926-6-27 2186 Humboldt McClellan Mountain 822 Comment
  UC582737  Microseris laciniata subsp. laciniata Joseph P. Tracy 1936-6-17 14942 Humboldt Bridgeville 198 Comment
  CDA41683  Mimulus alsinoides B. F. Kemp 1958-4-14 s.n. Humboldt Winters Ranch, north of Bald Hills School, near Eureka. 0 Comment
  JEPS10240  Mimulus aurantiacus var. aurantiacus Joseph P. Tracy 1934-6-19 13235 Humboldt Carlotta 60 Comment
  HSC102505  Mimulus breweri M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1490 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC55737  Mimulus breweri G. L. Clifton, Griswold 1979-7-26 10234 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  JEPS10552  Mimulus breweri Joseph P. Tracy 1932-7-10 10375 1/2 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1196777  Mimulus cardinalis Joseph P. Tracy 1921-9-4 5955 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC20707  Mimulus dentatus D. E. Anderson 1965-9-5 4074 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  RSA80079  Mimulus dentatus F. W. Peirson 1926-7-13 7055 Humboldt On south side of Mad River, near Blue Lake. Comment
  HSC76255  Mimulus guttatus Denis Kearns 1981-7-23 403 Humboldt Near Whiteys Peak. 1524 Comment
  UC582700  Mimulus guttatus Joseph P. Tracy 1932-7-16 10612 Humboldt Corral Prairie Trinity Summit 1584 Comment
  CDA41787  Mimulus guttatus E. F. Kemp 1958-4-14 s.n. Humboldt Winters Ranch, north of Bald Hills School, near Eureka. 0 Comment
  HSC20730  Mimulus guttatus J. R. Kahl 1962-5-11 28 Humboldt 2 mi. S of Trinidad along Hyw. 101 Comment
  RSA60480  Mimulus guttatus John H. Thomas 1949-6-12 896 Humboldt Along road between Orick and Martin's Ferry. 15.5 miles west of Martin's Ferry. 762 Comment
  JEPS10800  Mimulus inodorus Joseph P. Tracy 1935-7-24 14198 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  UC444807  Mimulus kelloggii Joseph P. Tracy July, 1908 2760 Humboldt near Low Gap (ridge between Van Duzen River and Mad River) 914 Comment
  JEPS8153  Mimulus layneae Joseph P. Tracy 1937-6-27 15382 Humboldt w of mouth South Fork of Trinity River; Friday Ridge 1219 Comment
  HSC35623  Mimulus moschatus Thomas W. Nelson, B. Reinhardt 1975-7-30 2109 Humboldt Whiting Spring Comment
  UC179950  Mimulus nasutus Joseph P. Tracy 1914-5-14 4457 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  HSC25985  Mimulus pilosus Thomas W. Nelson 1970-9-3 226 Humboldt Mad River. Comment
  HSC74236  Minuartia nuttallii subsp. gregaria M. A. Baker 1980-7-11 2794 Humboldt Near Red Mtn. 1341 Comment
  UC1198862  Mitella ovalis Joseph P. Tracy 1918-6-16 4956 Humboldt Eureka Northern Coast Region 0 Comment
  UC303175  Mitella ovalis Joseph P. Tracy 1923-6-20 6310 Humboldt White Thorn Valley Northern Coast Ranges (banks of creek) 304 Comment
  JEPS43508  Mitella ovalis Joseph P. Tracy 1933-5-14 12183 Humboldt Willow Creek Canyon along Trinity Highway; Willow Creek Canyon 365 Comment
  UC275345  Modiola caroliniana Joseph P. Tracy 1923-6-18 6288 Humboldt Northern Coast Ranges, Petrolia Petrolia Petrolia Petrolia; Northern Coast Ranges, Petrolia 60 Comment
  HSC50941  Moehringia macrophylla G. L. Clifton, Overton 1979-6-3 3764 Humboldt Near Pine Mtn., close to the town of Forest Glen 1495 Comment
  HSC41204  Moehringia macrophylla Thomas W. Nelson, Jane P. Nelson 1977-6-19 3505 Humboldt Along creek draining N end of Pond above Alder Springs 1585 Comment
  HSC96945  Moehringia macrophylla Ryoko Ito, Shauna McDonald 2007-6-13 8 Humboldt 1 mi. from NF1 on FS 5N04 1601 Comment
  UCD99638  Mollugo verticillata Freed W. Hoffman 1946-8-16 1852 Humboldt in Russian River at Korbel. Comment
  UC213510  Monardella odoratissima subsp. glauca Joseph P. Tracy 1919-9-22 5262 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  JEPS109950  Monardella odoratissima subsp. odoratissima Dean W. Taylor 2007-7-12 20164 Humboldt Pig Toe, along the Fruit Ranch road. 762 Comment
  CAS-BOT-BC220258  Monardella sheltonii L. R. Abrams 1918-6-16 7183 Humboldt Willow Creek Comment
  HSC32512  Monardella sheltonii Thomas W. Nelson 1973-9-3 1134 Humboldt McKeown Ranch N of Dinsmore Comment
  CDA15839  Monardella sheltonii P. Haggard 1999-10-18 PDR 018001 Humboldt North Coast Ranges; Vicinity of Blue Lake off Hwy 299 +- 3 mi. E of Arcata. USFS Rd. #1 0 Comment
  JEPS62398  Monardella villosa subsp. globosa Lincoln Constance 1934-6-3 798 Humboldt along n side of Redwood Hwy. at Dyerville South Fork Eel River, Bull Creek Region Comment
  UCLA62435  Monardella villosa subsp. globosa C. Epling, Wm. Robison 1935-7-24 Humboldt Dyerville Comment
  UC1239682  Monardella villosa subsp. villosa Joseph P. Tracy 1939-8-5 16381 Humboldt Dinsmore's 731 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
  UC2035872  Monardella villosa subsp. villosa Carl B. Wolf 1934-7-3 5923 Humboldt Weithpec junction of Klamath River and Trinity River 200 yards. west of school. 304 Comment
  SEINET3000074 Image available Montia chamissoi Joseph P. Tracy 1932-7-10 10378 Humboldt Trinity Summit, open places at Corral Prairie Comment
  RSA249389  Montia fontana D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5587 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  CAS-BOT-BC445164  Montia parvifolia L. R. Abrams 1918-6-16 7202 Humboldt Willow Creek Comment
  HSC45287  Muhlenbergia filiformis Brad Klipfel 1973-6-10 294 Humboldt E face of Grogan's Hole, N Trinity Mtn. area Comment
  UC1222233  Myosotis discolor Joseph P. Tracy 1942-6-15 17116 Humboldt Englewood Prairie Comment
  UC55917  Myosotis discolor J. P. Tracy 1900-5-28 827 Humboldt immediate vicinity of Eureka 0 Comment
  HSC3730  Myosotis sylvatica William J. Ferlatte 1963-5-17 48 Humboldt Near 11th and B Sts., Arcata Comment
  HSC47657  Myosotis sylvatica Sheila Logan 1978-4-10 180 Humboldt Arcata Community Forest, near PSW Experimental Lab Comment
  CAS-BOT-BC101666  Myrica californica Alice Eastwood 1907-4-21 39 Humboldt Port Trinidad Comment
  CAS-BOT-BC101667  Myrica californica C. Hart Merriam 1921-8-19 s.n. Humboldt Big Lagoon Comment
  HSC77885  Myriophyllum aquaticum Wendy Madar 1978-5-16 Humboldt Catfish Lake, 3 mi. S Eureka Comment
  SEINET201033  Nassella pulchra Joseph P. Tracy 1927-5-8 7963 Humboldt Phillipsville. 122 Comment
  HSC60107  Nasturtium officinale M. A. Baker 1977-6-6 375 Humboldt Hoopa Comment
  CAS-BOT-BC60347  Nasturtium officinale Doris K. Kildale 1926-8-12 2484 Humboldt Moonstone Beach near Trinidad. Comment
  HSC55077  Navarretia capillaris G. L. Clifton, Griswold 1979-7-31 11689 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC99451  Navarretia divaricata subsp. divaricata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 101 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
  RSA43882  Navarretia intertexta H. M. Pollard 1948-7-18 s.n. Humboldt Near Orleans. Comment
  SEINET196701  Navarretia leucocephala Joseph P. Tracy 1928-6-24 8476 Humboldt East Ranch, between Middle and North Yager Creeks. 762 Comment
  JEPS70393  Navarretia leucocephala subsp. minima W. L. Jepson 1927-7-3 12366 Humboldt Miranda station South Fork Eel River 228 Comment
  JEPS70472  Navarretia squarrosa Joseph P. Tracy 1921-8-21 5935 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UCSB5208  Navarretia squarrosa Parks, H. 1952-07 Humboldt Trinidad Comment
  HSC77392  Nemophila menziesii var. atomaria L. P. Janeway 1983-4-16 233 Humboldt Near the old Hwy. 299 on W side of Berry Summit. 823 Comment
  UC1103815  Nemophila menziesii var. atomaria Joseph P. Tracy 1926-5-15 7481 Humboldt Kneeland Prairie 762 Comment
  POM73962  Nemophila menziesii var. atomaria Joseph P. Tracy 1906-5-6 2445 Humboldt Near Hydesville. 60 Comment
  HSC43113  Nemophila menziesii var. menziesii Maralyn O'Meara 1974-5-14 363 Humboldt Beside Hwy. 299, 14.2 mi. E of Bridgeville Comment
  HSC71171  Nemophila parviflora Thomas W. Nelson 1977-5-30 3416 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  UC1239749  Nemophila parviflora Joseph P. Tracy 1921-4-24 5437 Humboldt Phillipsville Flat Northern Coast Ranges, , South Fork Eel Ri (South Fork Eel River) 91 Comment
  HSC97499  Nemophila parviflora var. austiniae C. Witte 2007-5-21 50 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1419 Comment
  JEPS1920  Nemophila pedunculata Joseph P. Tracy 1917-4-29 4779 Humboldt Eureka Northern Coast Ranges, Eureka 0 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
  UCD110165  Notholithocarpus densiflorus Joseph P. Tracy 1927-8-28 8361 Humboldt Near Boynton Prairie. 609 Comment
  HSC22510  Notholithocarpus densiflorus var. densiflorus D. E. Anderson 1963-9-1 2805 Humboldt Near Kneeland 732 Comment
  HSC43110  Notholithocarpus densiflorus var. densiflorus Thomas W. Nelson, Jane P. Nelson 1978-2-5 3760 Humboldt Kneeland, E side of junction of Kneeland and Maple Creek roads 671 Comment
  JEPS122  Nuttallanthus texanus Lincoln Constance 1934-6-22 921 Humboldt South Fork Eel River, Summit Grasshopper Peak, down Canoe Creek, road to Redwood Hwy, thence n to Dyerville Canoe Creek; Bull Creek Region, South Fork Eel River, Grasshopper Peak, C Comment
  CAS-BOT-BC142290  Oemleria cerasiformis L. R. Abrams 1918-6-16 7190 Humboldt Willow Creek Comment
  HSC22513  Oemleria cerasiformis D. E. Anderson 1965-4-24 3536 Humboldt Along Titlow Hill Rd. 2 mi. from its junction with Hwy. 299 Comment
  HSC82314  Oemleria cerasiformis Thomas W. Nelson, Linda M. Barker 1977-6-3 3386 Humboldt Floodplain of Mad River at S end of Mad River Bridge. 53 Comment
Read comments
May 7 2013
  JEPS44827  Oemleria cerasiformis W. L. Jepson 1902-7-1 1974 Humboldt Redwood Creek; Hupa Road Comment
  UC1198789  Oemleria cerasiformis Joseph P. Tracy 1933-3-26 10946 Humboldt hills at n end Big Lagoon 60 Comment
  UC154222  Oemleria cerasiformis Joseph P. Tracy 1909-6-13 2993 Humboldt near Blue Lake; Northern Coast Ranges, Mad River Valley 30 Comment
  CHSC70028  Oenothera wolfii David K. Imper 1988-8-15 Humboldt Hoopa Square, just n of junction Hwy 299 and Big Hill Rd., E side of 299, S of Sawdust Burner. Roadside. 152 Comment
  UC203990  Oenothera wolfii Joseph P. Tracy 1918-7-1 4968 Humboldt moist bluff Northern Coast Ranges, Cape Mendocino (three mi s of point of cape) 3 Comment
  HSC48857  Orthilia secunda Brad Klipfel 1973-7-15 200 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC82415  Orthocarpus imbricatus Thomas W. Nelson 1979-7-11 5031 Humboldt Along trail from Grogan's Hole to summit of N Trinity Mtn. Comment
  SEINET8733553 Image available Orthocarpus pusillus C. C. Harris, S. K. Harris 1942-1 1283 Humboldt 1 mile north and 3 miles west of Chalk Mountain Comment
  HSC76202  Osmorhiza berteroi Overton, Butler 1979-8-2 12517 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC76401  Osmorhiza berteroi Denis Kearns 1981-7-23 388 Humboldt Near Whiteys Peak 732 Comment
  HSC96296  Osmorhiza occidentalis Laurel Goldsmith, Wanda Naylor 2005-6-10 7 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF1 1370 Comment
  UC1197132  Osmorhiza occidentalis Joseph P. Tracy 1932-7-11 10420 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC183665  Osmorhiza occidentalis Joseph P. Tracy 1913-6-20 4238 Humboldt Buck Mountain Northern Coast Ranges (lower foothills, on nw slope) 762 Comment
  UC1197418  Oxalis albicans subsp. pilosa Joseph P. Tracy 1927-4-2 7872 Humboldt Philipsville North Coast Ranges (South Fork of Eel River) 121 Comment
  UC17222  Oxalis oregana Harley P. Chandler May, 1901 1160 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC668042  Oxalis trilliifolia Joseph P. Tracy 1936-8-8 15143 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC1103418  Oxalis trilliifolia Joseph P. Tracy with Dr. F. W. Pennell 1940-7-7 16665 Humboldt near Grouse Mt. (Friday Ridge); Friday Ridge 1371 Comment
  UC91426  Packera bolanderi var. bolanderi W. W. Price Humboldt Mad River Comment
  UC187241  Panicum acuminatum var. acuminatum Joseph P. Tracy 1906-7-1 2517 Humboldt at Eureka Eureka; Northern Coast Region, at Eureka 0 Comment
  CAS-BOT-BC253706  Panicum capillare Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC253707  Panicum capillare Doris K. Kildale 1925-9-7 1304 Humboldt Mouth of Dillon Creek on the Klamath River Comment
  UC184379  Panicum capillare Joseph P. Tracy 1912-10-20 4009 Humboldt Alton Northern Coast Region, Alton 30 Comment
  HSC82967  Parapholis strigosa A. L. Eicher 1986-7-7 Humboldt Humboldt Bay, 0.2 mi. S of the mouth of Jacoby Creek. 1 Comment
  UC584130  Parentucellia viscosa David D. Keck and J. Clausen 1935-6-16 3395 Humboldt Mouth of Little River Comment
  HSC58131  Paxistima myrsinites Gilbert Muth 1979-8-1 12133 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC99423  Paxistima myrsinites K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-1 72 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
  UC525569  Pectocarya penicillata Joseph P. Tracy 1926-5-2 7418 Humboldt near South fork; Northern Coast Rangers, Trinity Valley River Comment
  HSC56164  Pedicularis attollens G. L. Clifton, Terry Griswold 1979-8-1 12048 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC1000449  Pedicularis densiflora Joseph P. Tracy 1942-5-16 17351 Humboldt Garberville 304 Comment
  HSC20927  Pedicularis densiflora Francis Winter 1960-4-24 Humboldt 3.5 mi. SW of Hoopa Indian Reservation, Bair Rd. 610 Comment
  JEPS60059  Pellaea andromedifolia Willis G. Corbitt 1933-4-9 Humboldt Scotia Bluffs Comment
  UCD137559  Pellaea andromedifolia Lincoln Constance 1934-6-4 813 Humboldt Bull Creek Region, South Fork Eel River. Comment
  HSC56186  Penstemon anguineus Gilbert Muth 1979-8-1 12118 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC577414  Penstemon anguineus Joseph P. Tracy 1936-7-5 15035 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  JEPS86690  Penstemon anguineus L. R. Heckard with T. I. Chuang 1990-7-15 6769 Humboldt ca 15 mi n Highway 36 (South Fork Mountain Rd); South Fork Mountain Rd., n of Hwy 36 1700 Comment
  HSC73698  Penstemon laetus subsp. sagittatus M. A. Baker 1980-7-15 2971 Humboldt Near Whiting Ridge. 1341 Comment
  HSC96250  Penstemon laetus subsp. sagittatus Laurel Goldsmith, Wanda Naylor 2005-6-15 11 Humboldt 1 mi. SE of Grouse Mtn. on unnamed F.S. road 1400 Comment
  UC168971  Penstemon laetus var. sagittatus Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5666 Humboldt between Redwood Creek and Hoopa Valley (summit of Hoopa Mt.); North Coast Ranges, summit of Hoopa Mt. Comment
  HSC99528  Penstemon procerus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 192 Humboldt Near North Trinity Mtn and Water Dog Lakes, Six Rivers National Forest. 1826 Comment
  JEPS26255  Penstemon rattanii Arthur E. Connick 1925-6-1 Humboldt hills near Stone Lagoon; hills near Stone Lagoon 60 Comment
  UC1011931  Penstemon rattanii F. W. Pennell and J. P. Tracy 1940-7-8 26105 Humboldt Kneeland 670 Comment
  UC314589  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1923-10-28 6588 Humboldt Bald Mt. Northern Coast Ranges 762 Comment
  HSC34709  Perideridia kelloggii Thomas W. Nelson 1974-7-20 1697 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1389979  Perideridia kelloggii T. I. Chuang and B. G. Briggs 1963-4-10 5084 Humboldt 2 mi w Bridgeville Comment
  HSC98906  Perideridia kelloggii Cara Witte 2008-8-16 1029 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1579 Comment
  HSC98753  Perideridia oregana Cara Witte 2007-7-27 601 Humboldt National Forest 1. 1.5 miles southeast of Forest Service Road 5N09. 1560 Comment
  HSC55993  Perideridia parishii subsp. latifolia Overton, Butler 1979-7-31 11423 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  SEINET3926008  Persicaria maculosa Norman Dennis 1965-6-8 109 Humboldt Samoa Peninsula along the west side of Humboldt Bay.; 0 Comment
  HSC6050  Petasites frigidus var. palmatus C. O. Baker 1962-3-22 6 Humboldt 2 mi. S of Trinidad along old Hwy. 101 183 Comment
  SDSU391  Petasites frigidus var. palmatus D. F. Howe 1963-5-26 3553 Humboldt 2.8 miles east of Orick on Bald Hill road.n 427 Comment
  POM41563  Petasites palmatus Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  SEINET12118794  Peucedanum tomentosum H. P. Chandler 1901-1 1445 Humboldt Klamath River, North Coast Ranges 274 Comment
  HSC37415  Phacelia bolanderi Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 517 Humboldt Along Lost Man Creek. 38 Comment
  UC1222903  Phacelia californica Joseph P. Tracy 1950-6-8 18763 Humboldt e slope from summit Domingo Hill (near Petrolia) Comment
  UC1199105  Phacelia egena Joseph P. Tracy 1938-5-1 15735 Humboldt Willow Creek Trinity River Valley (stony flat along river) 152 Comment
  HSC57203  Phacelia heterophylla Griswold, Butler 1979-7-10 7129 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  HSC30744  Phacelia heterophylla subsp. virgata D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5620 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  JEPS2079  Phacelia heterophylla subsp. virgata Lincoln Constance 1934-5-29 731 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek region 365 Comment
  UC1222898  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1950-6-15 18802 Humboldt 7 mi Harris; Mail Ridge Comment
  HSC58116  Phacelia mutabilis G. L. Clifton, Griswold 1979-8-1 12077 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC74412  Phacelia mutabilis Gail Newton 1980-8-10 2030 Humboldt Near Blake Mtn. 1707 Comment
  UC162721  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1911-7-5 3317 Humboldt Willow Creek (tributary of Trinity River) Northern Coast Ranges (near its mouth) 304 Comment
  POM265889  Phacelia nemoralis subsp. oregonensis Lincoln Constance, R. C. Rollins 1942-5-11 2872 Humboldt Hoopa Valley 6 miles S of Hoopa. 122 Comment
  UCSC000088  Phalaris californica H. L. Person 1932-5-11 s.n. Humboldt near Arcata - Eureka 15 Comment
  UC186003  Phalaris minor J. P. Tracy 1912-10-20 3994 Humboldt near Loleta Pond (Eel River Valley); , near Loleta Pond 15 Comment
  CAS-BOT-BC76574  Philadelphus lewisii Alice Eastwood 1921-7-21 10671 Humboldt Van Duzer River, on the road. Comment
  HSC20267  Philadelphus lewisii R. E. Thill 1965-4-22 17 Humboldt 1.5 mi. E of Hwy. 101 on N Bank Rd. Comment
  UC154079  Philadelphus lewisii Joseph P. Tracy 1909-8-1 3060 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC102142  Phleum alpinum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1048 Humboldt Patterson Meadows 1555 Comment
  HSC54577  Phleum pratense Overton, Butler 1979-7-24 9615 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC58537  Phleum pratense Overton, Butler 1979-7-23 9461 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  HSC98126  Phleum pratense Cara Witte 2007-6-28 385 Humboldt Forest Service Road 5N10. Approximately 1/2 mile east of intersection with National Forest 1/ Titlow Hill Road. 1426 Comment
  HSC55333  Phlox adsurgens Griswold, Butler 1979-7-12 7177 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC70653  Phlox adsurgens Gail Newton 1980-7-14 1528 Humboldt Near Deadman Ridge 1097 Comment
  HSC70233  Phlox diffusa M. A. Baker 1980-6-8 1895 Humboldt Near Buck Flat. 1554 Comment
  JEPS71120  Phlox gracilis Joseph P. Tracy 1930-5-4 8691 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  UC1198563  Phlox gracilis J. P. Tracy 1902-6-3 1674 Humboldt near Hubbards's Station (on the Harris-Fruitland Ridge, se part of Humboldt Co.); Harris-Fruitland Ridge 609 Comment
  UC1198566  Phlox gracilis Joseph P. Tracy 1938-6-13 15910 Humboldt Cold Springs Grouse Mountain 1432 Comment
  HSC74351  Phoenicaulis cheiranthoides Gail Newton 1980-6-28 741 Humboldt Near Mad River Butte. 1536 Comment
  RSA13440  Phyllospadix torreyi H. E. Parks 1933-11-12 s.n. Humboldt Spruce Cove, Trinidad. Comment
  CAS-BOT-BC140584  Physocarpus capitatus Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC31649  Physocarpus capitatus Timothy B. Devine 1974-5-4 327 Humboldt Mad River floodplain 1 mi. from Blue Lake on Hatchery Rd. 305 Comment
  HSC45100  Physocarpus capitatus R. Sutherland 1978-5-12 9 .12578 Humboldt 282 Comment
  CAS-BOT-BC73445  Picea sitchensis Carl B. Wolf 1930-10-28 1037 Humboldt 5 miles south of Ferndale on road to Petrolia. 152 Comment
  NY951520  Picea sitchensis D. H. Goldman 2004-10-30 2901 Humboldt West side of Eel River Drive, about 0.4 mile S of the intersection with Hookton Road and the entrance ramp to Rt. 101 21 Comment
  OBI33130  Picea sitchensis David J. Keil 1983-7-1 17295 Humboldt Between Ferndale and Bear River Ridge Rd along Mattole Rd Comment
  UC484045  Picea sitchensis Carl B. Wolf 1930-10-28 Humboldt 5 mi s Ferndale (on road to Petrolia) 152 Comment
  SD42286  Pinus attenuata Carl B. Wolf 1937-8-13 Humboldt North Coast Range, 8 miles east of Hoop Valley on new road towards Trinity Summit 1220 Comment
  CAS-BOT-BC78377  Pinus contorta Ira L. Wiggins 1930-6-25 4620 Humboldt 2 miles north of Samoa Comment
  HSC31984  Pinus jeffreyi Steve Selva, Roger Jensen 1974-8-19 25 Humboldt Horse Mtn. Ski Area Comment
  HSC98787  Pinus monticola Cara Witte 2008-6-4 679 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1307 Comment
  HSC42411  Pinus muricata Robert M. Specht 1977-11-20 1190 Humboldt Near Hwy. 101, on flats along Georgia Pacific's A-line rd. , Bulk Collection # 117 122 Comment
  CAS-BOT-BC79027  Pinus ponderosa Doris K. Kildale 1928-7-1 5314 Humboldt Klamath River at Orleans Comment
  UC303142  Piperia elongata Joseph P. Tracy 1925-7-12 7213 Humboldt near the South Fork Trinity River Valley; Northern Coast Ranges, Trinity River Valley 182 Comment
  CAS-BOT-BC158324  Piperia multiflora J. D. Ackerman 1974-8-13 407 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  HSC98975  Piperia unalascensis Cara Witte 2008-7-7 834 Humboldt Horse Mountain Botanical Area. 1/4 mile east of intersection National Forest 1, Forest Service Roads 6N36 and 6N38. 1415 Comment
  HSC57196  Plagiobothrys bracteatus Griswold, Butler 1979-7-11 7046 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  UC525608  Plagiobothrys bracteatus Joseph P. Tracy 1927-5-14 8029 Humboldt moist low place at Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC552841  Plagiobothrys bracteatus Joseph P. Tracy 1935-5-30 13916 Humboldt Willow Creek Trinity River Valley (bed of dried-up pond) 152 Comment
  UC582610  Plagiobothrys bracteatus Joseph P. Tracy 1936-6-3 14842 Humboldt opposite mouth of Willow Creek; Northern Coast Ranges, Trinity River Valley, Lack Pond 152 Comment
  JEPS61027  Plagiobothrys hispidulus Joseph P. Tracy 1932-7-10 10386 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC44635  Plagiobothrys nothofulvus Diane L. Reed 1978-5-7 61 Humboldt 2 mi. up Friday Ridge Rd. from Hwy. 299 Comment
  UC526808  Plagiobothrys nothofulvus Joseph P. Tracy 1925-5-30 7045 Humboldt McClellan Mountain Northern Coast Ranges 822 Comment
  UC552846  Plagiobothrys reticulatus Joseph P. Tracy 1935-5-25 13860 Humboldt Fort Seward 106 Comment
  UC582613  Plagiobothrys reticulatus Joseph P. Tracy 1937-6-20 15351 Humboldt ten mi up stream from the mouth Bear River 152 Comment
  UC198636 Image available Plagiobothrys reticulatus Joseph P. Tracy 1916-5-31 4691 Humboldt from South Fork Scotia (along the Eel River); Northern Coast Ranges, Eel River, Holmes Flat; Along Eel River from South Fork to Scotia in Humboldt Co. 60 Comment
  UC206145  Plagiobothrys reticulatus Joseph P. Tracy 1913-6-22 4259 Humboldt opposite Buck Mountain (Van Duzen River Valley); Northern Coast Range, Van Duzen River Valley 762 Comment
  UC668232  Plagiobothrys reticulatus Joseph P. Tracy 1938-6-9 15890 Humboldt top of ridge 3 mi w Harris 914 Comment
  UC1222203  Plagiobothrys scouleri Joseph P. Tracy 1949-6-25 18353 Humboldt Box Camp Trinity Summit 1463 Comment
  POM61312  Plantago hirtella var. galeottiana Joseph P. Tracy 1906-6-17 2493 Humboldt Immediate vicinity of Eureka. 0 Comment
  HSC62991  Plantago lanceolata David Wheeler 1979-4-23 83 Humboldt N end of Heindon Rd. at turn-around Comment
  BLMAR303  Plantago maritima Jennifer Anthony-Wheeler 2002-7-1 303 Humboldt South Spit 6 Comment
  UC1196133  Plantago subnuda J. P. Tracy 1901-6-30 1212 Humboldt immediate vicinity Eureka 0 Comment
  HSC33745  Platystemon californicus A. M. Montalvo 1975-5-24 269 Humboldt Samoa Dunes, off Samoa Blvd. across from the boat landing Comment
  HSC26332  Platystemon californicus Thomas W. Nelson 1971-4-4 369 Humboldt Along the Samoa Peninsula adjacent to the Coast Gaurd Station Comment
  RSA79377  Platystemon californicus var. californicus E. K. Balls, Lee W. Lenz 1952-5-12 17203 Humboldt 0.6 mi E of Dinsmore along Hwy 36 from Alton to Red Bluff. Comment
  RSA506997  Plectritis congesta subsp. brachystemon H. E. Parks, Joseph P. Tracy 1934-6-14 11022 Humboldt Horse Mountain. 1220 Comment
  UCSC000724  Plectritis congesta var. congesta S. C. Dyal 1938-6-11 651 Humboldt Moist places beside road east of Eureka Comment
  HSC49518  Plectritis macrocera R. York 1979-4-16 232 Humboldt E of Samoa drag strip. Comment
  HSC49370  Pleuricospora fimbriolata T. Jimerson, J. Pageau 1979-6-15 582 Humboldt West of FS 11N21, on the boundary between Sections 27 and 28. 762 Comment
  HSC54031  Pleuropogon refractus Griswold, Butler 1979-7-12 7222 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1103799  Pleuropogon refractus Joseph P. Tracy 1936-8-7 15093 Humboldt head of Little Hors-Linto Creek (Trinity Summit); , Little Hors-Linto Creek 1371 Comment
  UC249503  Pleuropogon refractus Joseph P. Tracy 1922-6-18 6095 Humboldt head of Middle Yager Creek; Northern Coast Ranges, Middle Yager Creek 762 Comment
  HSC26358  Poa annua T. O. Osborne 1970-6-18 41 Humboldt Green Rock, 1-5/8 mi. N, 3/4 mi. W of Trinidad Lighthouse. Comment
  UC525629  Poa bolanderi Joseph P. Tracy Jul 16 1930-Jul 19 1930 8902 Humboldt McKay Camp South Fork Mt; Northern Coast Ranges 1676 Comment
  CAS-BOT-BC255029  Poa compressa Henry M. Pollard 1948-7-17 s.n. Humboldt Orleans Comment
  POM161908  Poa howellii Joseph P. Tracy 1921-4-24 5451 Humboldt Phillipsville. Facing south fork of Eel River. 91 Comment
  CAS-BOT-BC254283  Poa macrantha Doris K. Kildale 1926-6-29 2243 Humboldt Mouth of Mad River Comment
  RSA21035  Poa macrantha C. B. Wolf 1937-6-18 8904 Humboldt Centerville Beach 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
  HSC40400  Poa pratensis Thomas W. Nelson 1976-7-9 3007 Humboldt S of Mtn. Lassic, (Signal Peak). 1707 Comment
  UC1103181  Poa pratensis subsp. pratensis Joseph P. Tracy 1913-6-19 4206 Humboldt opposite Buck Mt (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC70687  Poa secunda subsp. secunda Gail Newton 1980-7-13 1572 Humboldt Near Sims Mountain. 1311 Comment
  HSC98597  Poa secunda subsp. secunda Cara Witte 2007-6-4 197 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  SEINET201043 Image available Poaceae Joseph P. Tracy 1923-6-19 6302 Humboldt Wilder ridge. 762 Comment
  UC1222708  Polemonium carneum Joseph P. Tracy 1950-6-8 18736 Humboldt Bear River Ridge 609 Comment
  UC162581  Polemonium carneum Ethel Tracy 1911-6-18 Humboldt near Big Lagoon; Northern Coast Ranges, near Big Lagoon 30 Comment
  UC535763  Polygala californica Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  CAS-BOT-BC167574  Polygala cornuta var. cornuta Joseph P. Tracy 1936-8-30 15182 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC17467  Polygonum aviculare P. W. Shields 1955-6-18 Humboldt HSC Campus Comment
  HSC100601  Polygonum bistorta Carl C. Marshall Jun 1886 269 Humboldt Trinity Summit. Comment
  HSC99420  Polygonum bistortoides K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 69 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
  HSC55221  Polygonum douglasii Walter Overton 1979-8-1 12393 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC71819  Polygonum douglasii Thomas W. Nelson, Jane P. Nelson 1980-6-27 5954 Humboldt Six Rivers National Forest, saddle between two peaks E of Mt. Lassic 1768 Comment
  JEPS51269  Polygonum douglasii Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  UC1116240  Polygonum douglasii subsp. spergulariiforme Joseph P. Tracy 1947-7-9 17835 Humboldt Horse Mountain Northern Coast Ranges 1432 Comment
  UC1116241  Polygonum douglasii subsp. spergulariiforme Joseph P. Tracy 1947-7-5 17772 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UC672949  Polygonum lapathifolium Joseph P. Tracy 1930-10-12 9204 Humboldt Alton to Fortuna (on gravel bars); Eel River 15 Comment
  UC1101205  Polygonum lapathifolium Malcolm A. Nobs and S. Galen Smith 1949-8-9 1232 Humboldt Town of Blue Lake; s side Comment
  CHSC55907  Polygonum paronychia L. P. Janeway 1987-7-31 2544 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  UC672933  Polygonum polystachyum Joseph P. Tracy 1940-10-18 16775 Humboldt Eureka 30 Comment
  RSA689951  Polypodium californicum Charlotte M. Hoak 1936-8-15 104 Humboldt Patricks Point Comment
  UC57306  Polypodium calirhiza J. P. Tracy 1901-1-27 985 Humboldt sand hill of Ocean Beach at Samoa (opposite Eureka) Comment
  HSC1108  Polypodium glycyrrhiza T. W. Beck 1963-3-10 11 Humboldt Camp Bauer, Korbel Comment
  CAS-BOT-BC72080  Polypodium scouleri Joseph P. Tracy 1933-6-6 12510 Humboldt Trinidad 6 Comment
  JEPS93137  Polypodium scouleri M. Wetherwax 1992-5-20 2434 Humboldt coastal bluff s side of Wedding Rock; Patrick's Point State Park 30 Comment
  CAS-BOT-BC233070  Polypogon interruptus Kenneth Clark 1980-5-10 645 Humboldt Shelter Cove, On coastal bluffs of Point Delgada Comment
  JEPS82390  Polypogon interruptus A. S. Hitchcock 1915-7-13 839 Humboldt Eureka Comment
  UC39737  Polypogon interruptus Harley P. Chandler June, 1901 1332 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 304 Comment
  UCD91207  Polypogon maritimus Joseph P. Tracy 1939-8-5 16377 Humboldt Along Van Duzen River, Opposite Buck Mountain. Dinsmore's. 762 Comment
  HSC10854  Polypogon monspeliensis Jerry Parker 1968-11-22 241 .1 Humboldt McKinleyville beach. Comment
  RSA129378  Polypogon monspeliensis H. S. Yates 1936-6-16 5679 Humboldt 1 mile NE of Samoa 3 Comment
  HSC65985  Polystichum imbricans Gail Newton 1980-7-23 1714 Humboldt Near Packsaddle Ridge 1463 Comment
  UC519314  Polystichum imbricans subsp. imbricans Joseph P. Tracy 1933-6-13 12596 Humboldt near summit on rd w from Hoopa to Bair's Hoopa Mt.; Northern Coast Ranges 1066 Comment
  HSC54569  Polystichum munitum Overton, Butler 1979-7-24 9597 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  SBBG296  Polystichum munitum H. and M. Dearing 1939-5-27 3454 Humboldt Bishop Pine Lodge, Patricks Pt 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
  UC1440064  Polystichum munitum Danin & H. G. Baker 1960-9-2 658 c Humboldt ca. 2 mi n of Dyerville (High Rock (on W side of Eel River), along Ave. of the Giants) Comment
  HSC79150  Polystichum munitum C. J. Thomas 1984-9-25 118 Humboldt In Redwood forest immediately behind HSU fieldhouse 79 Comment
  JEPS33235  Polystichum munitum Lincoln Constance 1934-6-11 850 Humboldt S Fork Eel River Comment
  SEINET4555667 Image available Polystichum munitum Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15049 Humboldt 20 miles north of Eureka. Comment
  CAS-BOT-BC102905  Populus trichocarpa Doris K. Kildale 1926-3-24 1618 Humboldt Lindsey Creek bridge - Lower Mad River 26 Comment
  HSC56204  Populus trichocarpa G. L. Clifton, Griswold 1979-8-2 12195 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1116225  Potamogeton foliosus Joseph P. Tracy 1927-8-7 8308 Humboldt Willow Creek; Trinity River Valley 152 Comment
  RSA152546  Potamogeton foliosus Joseph P. Tracy 1927-8-7 8308 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  HSC62826  Potamogeton nodosus J. M. DiTomaso 1979-4-22 907 Humboldt Crannell Rd. exit between Westhaven and McKinleyville Comment
  UCD149951  Potamogeton richardsonii William Anderson; H. Mc. 1964-8-5 s.n. Humboldt Freshwater Lagoon. Comment
  HSC97614  Potentilla glandulosa subsp. glandulosa Cara Witte 2007-5-31 156 Humboldt Along National Forest Route 1. Near Kinsey Ridge. 1.25 miles north of intersection with 4N09. 1308 Comment
  HSC75483  Potentilla gracilis var. fastigiata J. O. Sawyer 1980-7-18 3603 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC30037  Potentilla gracilis var. gracilis Chesnut and Drew 1888-8-6 Humboldt Redwood Creek Comment
  CAS-BOT-BC517384  Prosartes smithii Doris K. Kildale 1927-3-20 2927 Humboldt South Fork of Eel River Comment
  HSC97301  Prosartes smithii M. Mesler 2007-5-15 750 Humboldt Bald Hills Rd., 18.8 mi. from Hwy. 101, N side of rd. 915 Comment
  SEINET12050388  Prosartes smithii F. H. Utech 1988-1 88 -021 Humboldt 3.5 mi N of Phillipsville & 1.5 mi S of Miranda along Avenue of the Giantes (alt US 101) to Miranda 85 Comment
  CDA5736  Prunella vulgaris T. C. Fuller 1958-6-17 596 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC22530  Prunella vulgaris subsp. lanceolata Jerry Parker 1968-9-23 68 Humboldt 1/4 mi. S of Vista Point Comment
  JEPS62489  Prunella vulgaris var. lanceolata Joseph P. Tracy 1937-6-28 15370 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  UC467820  Prunus virginiana var. demissa P. E. Goddard 1907-6-2 f 114 Humboldt Van Duzen Comment
  HSC57047  Pseudognaphalium thermale Overton, Butler 1979-7-24 9696 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC180193  Pseudognaphalium thermale Joseph P. Tracy 1914-9-6 4622 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC29945  Pseudostellaria jamesiana D. H. Norris, J. Van Horn, D. E. Jackson 1973-6-19 193 Humboldt Humboldt National Forest, Santa Rosa Mtn. Range, Buffalo Canyon 1524 Comment
Read comments
Apr 11 2012
  HSC76288  Pseudotsuga menziesii var. menziesii Denis Kearns 1981-7-6 56 Humboldt Near Mosquito Lake 1122 Comment
  HSC79439  Pseudotsuga menziesii var. menziesii Kenneth Clark 1980-11-28 1053 Humboldt Above Point No Pass, throughout Shelter Cove 305 Comment
  RSA170261  Psilocarphus tenellus var. tenellus Joseph P. Tracy 1917-5-27 4783 Humboldt At Eureka. 0 Comment
  HSC79440  Pteridium aquilinum var. pubescens Kenneth Clark 1980-6-14 675 Humboldt On western slope above Dead Man's Gulch. 152 Comment
  HSC36260  Pteridium aquilinum var. pubescens John Rehling 1974-8-19 20 Humboldt Comment
  UC1197761  Pterospora andromedea Joseph P. Tracy 1947-7-9 17857 Humboldt Horse Mt. 1432 Comment
  CHSC104064  Pyracantha angustifolia Peter F. Zika 2009-6-15 24493 Humboldt North Coast Ranges. Route 299, 0.2 km W of Davis Street, near town of Blue Lake. 80 Comment
  CAS-BOT-BC460600  Pyrola aphylla Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  POM209002  Pyrola bracteata Lincoln Constance 1934-6-8 835 Humboldt Cow Cr. fire-trail, Bull Cr. watershed, Humboldt Redwood Park. 457 Comment
  HSC44559  Pyrola picta Brad Klipfel 1973-7-15 178 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC314638  Pyrola picta Joseph P. Tracy 1926-6-6 7556 Humboldt near summit on road w from Hoopa to Bair's, Hoopa Mountain, Northern Coast Ranges Hoopa Mountain; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  UC562733  Pyrola picta Joseph P. Tracy 1932-7-14 10569 Humboldt Trinity Summit, near Corral Prairie 1584 Comment
  HSC100630  Pyrus rivularis Carl C. Marshall Aug 1886 252 Humboldt Near streams. Comment
  UC54679  Quercus chrysolepis P. E. Goddard 1901-7-12 59 Humboldt Hupa Comment
  HSC43854  Quercus garryana Maralyn O'Meara 1974-7-17 550 Humboldt Kneeland Comment
  HSC73544  Quercus garryana Gail Newton 1980-7-14 1469 Humboldt Near Last Chance Ridge. 1219 Comment
  SEINET12034478  Quercus garryana K. S. Erdman 1970-1 4764 Humboldt Schoolhouse Peak on Bald Hills Road about 16 mi S of Orick,T9N,R2E,Sec24 914 Comment
  SEINET12852859  Quercus garryana Unknown 1934-8-31 6856 Humboldt Klamath River at Bluff Creek. Comment
  CAS-BOT-BC105160  Quercus kelloggii H. E. McMinn 1922-8-5 330 Humboldt Mad River Comment
  UCD165089  Quercus parvula var. shrevei Lois W. Weeth; Kerry Heise and John M. Tucker 2003-10-21 s.n. Humboldt 22 mi. from Garberville along Alderpoint Rd. 116 Comment
  CAS-BOT-BC104334  Quercus sadleriana Doris K. Kildale 1925-8-17 1378 Humboldt Trinity Summit 1917 Comment
  HSC72800  Quercus sadleriana Gail Newton 1980-6-17 219 Humboldt Near Onion Mtn. 1341 Comment
  HSC55117  Quercus vacciniifolia Gilbert Muth 1979-8-1 11892 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  SBBG11822  Quercus vacciniifolia D. E. Breedlove 1961-7-4 647 Humboldt 7 mi W of Willow Crk on US Hwy 299 521 Comment
  UC1565804  Quercus vacciniifolia R. Spellenberg 1990-7-10 Humboldt 8 mi wsw Salyer (at 6 mi s of Berry Summit (on Calif Hwy 299), extreme e edge of Humboldt County) 1371 Comment
  SEINET3825263 Image available Quercus wislizeni Joseph P. Tracy 1914-5-14 4458 Humboldt Fort Seward Comment
  UC1103006  Ranunculus aquatilis var. hispidulus Joseph P. Tracy 1926-7-5 7722 Humboldt pond near Redwood House (head of creek); Northern Coast Ranges, Grizzly Creek 609 Comment
  UC162875  Ranunculus californicus Joseph P. Tracy 1901-4-26 1044 Humboldt e Fields Landing; Northern Coast Region, Region about Humboldt Bay, Humboldt H 0 Comment
  HSC90768  Ranunculus flammula var. ovalis Gail Newton 1982-5-31 3566 Humboldt Elk River Wildlife Area, Eureka Comment
  UC1196219  Ranunculus occidentalis J. P. Tracy 1901-6-23 1182 Humboldt Immediate vicinity of Eureka 0 Comment
  UC503037  Ranunculus occidentalis Joseph P. Tracy 1929-7-4 8608 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  UC1196235  Ranunculus occidentalis Joseph P. Tracy 1902-6-3 1671 Humboldt ridge between Harris and Fruitland; Northern Coast Ranges 762 Comment
  HSC18171  Ranunculus occidentalis var. occidentalis Elrid H. Spinas 1948-5-15 11 Humboldt Horse Mtn. Comment
  POM172654  Ranunculus orthorhynchus var. platyphyllus V. King Chesnut, E. R. Drew 1888-7-20 s.n. Humboldt Pilot Creek Comment
  HSC90641  Ranunculus repens Gail Newton 1982-6-10 3613 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC95591  Ranunculus repens Andrea Pickart 2002-3-31 24 Humboldt Arcata Marsh, Dan Hauser Marsh 0 Comment
  HSC18176  Ranunculus repens var. repens Francis Winter 1960-4-19 Humboldt Samoa Peninsula, 4.5 mi. W of Arcata Comment
  HSC36226  Ranunculus repens var. repens John Rehling 1975-4-21 51 Humboldt Along Jolly Giant Creek E of HSU campus Comment
  UC162791  Ranunculus uncinatus J. P. Tracy 1906-4-22 2416 Humboldt Immediate vicinity of Eureka 0 Comment
  RSA8097  Rhamnus californica Carl B. Wolf 1927-8-30 1226 Humboldt 2 miles S of Petrolia on the Matole River near point where the road crosses the river. Comment
  HSC36263  Rhododendron columbianum John Rehling 1974-8-20 25 Humboldt Big Lagoon Bog Comment
  CAS-BOT-BC56609  Rhododendron macrophyllum C. B. Wolf 1931-8-29 2370 Humboldt Near summit of Orick Hill on road to Weitchpec 304 Comment
  UC32620  Rhododendron macrophyllum Chesnut and Drew 1888-7-8 Humboldt near Arcata Comment
  UC162760  Rhododendron occidentale Joseph P. Tracy 1911-7-6 3340 Humboldt between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 762 Comment
  RSA0062953  Rhododendron occidentale var. californicum C. B. Wolf 1934-7-2 5905 Humboldt 4.5 miles from Snow Camp on road to Bald Mt (Mtns E of Korbel). 1067 Comment
  HSC96473  Rhododendron occidentale var. paludosum Gordon Leppig 1997-6-19 456 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  POM89461A  Rhododendron occidentale var. paludosum L. R. Abrams 1922-6-25 8253 Humboldt Arcata. Comment
  UC199535  Rhus trilobata Chestnut and Drew 1888-7-23 Humboldt Hyampom Comment
  HSC103228  Ribes binominatum Jade Paget-Seekins 2010-6-13 19 Humboldt Groves Prairie. From the campsite next to the prairie walk almost to the end of the prairie, turn right, walk down the slope towards the creek. 1254 Comment
  HSC40677  Ribes binominatum Thomas W. Nelson, Jane P. Nelson 1976-6-22 2847 Humboldt Along Rd. to Goat Hill. 1646 Comment
  UC154067  Ribes divaricatum var. pubiflorum Mrs. M. H. Manning Apr. 1902 Humboldt near Hupa Comment
  UC1198951  Ribes inerme var. klamathense Joseph P. Tracy 1935-5-30 13915 Humboldt Willow Creek Trinity River Valley 152 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
  RSA0021102  Ribes lacustre Thomas W. Nelson, Jane P. Nelson 1977-6-19 3490 Humboldt [Mount] Lassic. 1616 Comment
  HSC98554  Ribes lobbii Cara Witte 2008-6-18 742 Humboldt 2 miles north of the intersection between National Forest 1 and Friday Ridge Road/ 6N08 1580 Comment
  CAS-BOT-BC206043  Ribes menziesii Doris K. Kildale 1926-4-4 1724 Humboldt Trinidad Comment
  HSC34640  Ribes menziesii J. M. Sauser 1975-4-9 2 Humboldt Old Arcata Rd., 2 mi. S of junction with Jacoby Creek Rd. Comment
  HSC59571  Ribes menziesii Rick Lundquist 1979-4-22 28 Humboldt 8.4 mi. up Fickle Hill Rd. from 11th St. across from HSU observatory 610 Comment
  UC1198928  Ribes menziesii Joseph P. Tracy 1933-3-12 10920 Humboldt Ferndale North Coast Ranges 30 Comment
  UC154119  Ribes menziesii J. P. Tracy 1904-7-31 2130 Humboldt immediate vicinity Eureka 0 Comment
  RSA0021780  Ribes menziesii Elmer I. Applegate 1931-3-28 6625 Humboldt Trinidad. [label says Mendocino but should be Humboldt Co.] Comment
  UC1198933  Ribes menziesii var. menziesii Joseph P. Tracy 1924-3-30 6636 Humboldt 3 miles west of Bridgeville; Northern Coast Ranges. 228 Comment
  HSC20280  Ribes roezlii Elrid H. Spinas 1948-5-22 43 Humboldt Horse Mtn. Comment
  HSC70757  Ribes roezlii R. York 1980-5-17 526 Humboldt Near Le Perron Peak 792 Comment
  UC1198950  Ribes roezlii var. amictum Joseph P. Tracy 1930-7-27 9111 Humboldt near Petrolia; North Coast Ranges, Mattole River 15 Comment
  HSC20279  Ribes roezlii var. cruentum B. R. Templeton 1962-5-24 Humboldt 18 mi. W of Willow Creek, N of Hwy. 299 Comment
  UCD102482  Ribes roezlii var. cruentum Roman Gankin 1965-8-5 544 Humboldt Horse Mountain Road, 5.2 miles north of junction with Shelter Cove Road. Comment
  CAS-BOT-BC198937  Ribes roezlii var. roezlii Joseph P. Tracy 1937-3-27 15240 Humboldt Near Blue Lake, along Mad River 15 Comment
  UCD22651  Ribes sanguineum Karen Seaman 1983-5-1 14 Humboldt On Kneeland Road, 1 mile S.E. of Kneeland Airport on roadside. 701 Comment
  SEINET12217529  Ribes sanguineum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -298 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  SEINET13942792 Image available Ribes sanguineum W. R. Rogers 1967-1 233 Humboldt Essex Lane, 0.5 mile north of Hwy 299 Comment
  HSC103233  Ribes sanguineum var. sanguineum Jade Paget-Seekins 2010-6-14 21 Humboldt Groves Prairie. Near a bridge just upstream from the campsite near the prairie. 1261 Comment
  RSA0018240  Ribes sanguineum var. sanguineum E. R. Johnson 1929-08 1417 Humboldt Arcata Redwood Park. 76 Comment
  HSC99027  Ribes viscosissimum Cara Witte 2008-7-1 783 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1462 Comment
  UC902089 Image available Ribes viscosissimum Joseph P. Tracy 1942-6-23 17239 Humboldt near Box Camp; Trinity Summit 1524 Comment
  CAS-BOT-BC74512  Rorippa curvisiliqua S. K. Harris; J. P. Tracy; H. S. Yates 1936-6-17 3438 Humboldt Northwest slopes of Buck Mountain. 822 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
  CAS-BOT-BC146526  Rosa gymnocarpa Roxana S. Ferris 1955-7-11 12971 Humboldt E of summit near Willow Creek, along U. S. Highway 299 Comment
  HSC36578  Rosa gymnocarpa Thomas W. Nelson, James Nelson 1975-9-3 2198 Humboldt Above junction of Maple Creek-Kneeland Rd. Comment
  HSC72803  Rosa gymnocarpa Gail Newton 1980-6-16 159 Humboldt Near Monks Camp 109 Comment
  HSC99509  Rosa gymnocarpa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 171 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
  JEPS48709  Rosa gymnocarpa Hilda W. Grinnell 1932-7-9 1 Humboldt McKay Camp So. Fork Mt. 1676 Comment
  POM275420  Rosa gymnocarpa Lyman D. Benson 1928-7-8 376 Humboldt Weott Ranger Station. Seaward N Coast Mt. Range, S Fork Eel River. 61 Comment
  CAS-BOT-BC146527  Rosa gymnocarpa Volney Rattan 1883-6-1 s.n. Humboldt Trinity River below the Forks Comment
  HSC98694  Rosa gymnocarpa var. gymnocarpa Cara Witte 2007-6-5 213 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1 mile south of intersection with 5N04. 1434 Comment
  UC1199027  Rosa nutkana var. nutkana Joseph P. Tracy 1936-6-9 14887 Humboldt Bear River Ridge 609 Comment
  HSC24018  Rosa rubiginosa Tim Baroni 1971-6-25 48 Humboldt [no information] Comment
  HSC48415  Rosa rubiginosa J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9926 Humboldt Ishi Pishi Rd., 2.5 mi. from its junction with Hwy. 96 in Orleans 213 Comment
  RSA89565  Rubus discolor Philip A. Munz 1954-7-23 19864 Humboldt 5 miles SE of Carlotta Comment
  BLMAR469  Rubus leucodermis Jennifer Anthony-Wheeler 2004-11-8 469 Humboldt Titlow Hill, growing along Titlow Hill road off Hwy 300 914 Comment
  CAS-BOT-BC148383  Rubus leucodermis Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  JEPS47714  Rubus leucodermis W. L. Jepson 1932-8-8 16532 Humboldt Perrott Creek Comment
  RSA46847  Rubus leucodermis Doris K. Kildale 1927-7-3 3662 Humboldt Willow Creek Flat. Comment
  CAS-BOT-BC147246  Rubus parviflorus Doris K. Kildale 1928-6-15 5231 Humboldt Iaqua Comment
  CAS-BOT-BC147247  Rubus parviflorus Harold E. Parks; Joseph P. Tracy 1942-5-16 11562 Humboldt Vicinity of Garberville 152 Comment
  SD33957  Rubus parviflorus var. velutinus Doris K. Gillespie 1938-8-6 15397 Humboldt Eureka Comment
  UC902133  Rubus spectabilis Joseph P. Tracy 1948-5-15 17979 Humboldt along Trinity Highway (Willow Creek Canyon, East Fork Willow Creek); Willow Creek Canyon, East Fork Willow Creek 457 Comment
  UC1199049  Rubus ursinus J. P. Tracy 1901-6-23 1164 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UC1334749  Rubus ursinus R. S. Woglum 1938-8-28 2041 Humboldt Trinidad Comment
  UCD17846  Rubus ursinus H. Olmo 8-10 May 1962 62- 33 Humboldt California. Humboldt County: along Route 36 between Grizzly Creek Redwoods State Park and Dinsmore. Comment
  UCD89721  Rubus ursinus Lindsay Clark 2008-6-23 KRC 6 Humboldt Nadelos Campground in King Range Conservation Area, 3.8 miles SE of Shelter Cove. 550 Comment
  HSC75259  Rudbeckia occidentalis J. O. Sawyer, M. A. Ericksen 1980-8-18 4053 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  UC672930  Rumex acetosella Joseph P. Tracy 1932-7-14 10530 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UCR45427  Rumex acetosella Kenneth Clark 1980-4-18 602 Humboldt North Coast, Shelter Cove, on access trail to Dead Man's Gulch 52 Comment
  CAS-BOT-BC421936  Rumex acetosella Doris K. Kildale 1925-8-17 1239 Humboldt Trinity Summit - near Waterdog Lake. 1828 Comment
  HSC32426  Rumex acetosella Linda M. Barker 1974-5-11 171 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC40030  Rumex acetosella Thomas W. Nelson, Jane Nelson 1976-6-22 2876 Humboldt On SW-facing slope at Goat Mtn. lookout 1666 Comment
  HSC64435  Rumex acetosella J. P. Smith, Steve Selva 1970-6-30 4101 Humboldt Comment
  HSC89469  Rumex acetosella P. A. Daly 1986-3-12 99 Humboldt Trinidad Head, along trail 61 Comment
  UCD101114  Rumex crassus Linda M. Barker 1976-8-2 1672 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  HSC34982  Rumex obtusifolius Thomas W. Nelson 1974-9-13 1713 Humboldt King Salmon area Comment
  UC1070542  Rumex occidentalis H. L. Person 1932-7-16 Humboldt hwy n of Trinidad; Rock Point Quad. Comment
Read comments
Aug 3 2007
  RSA275410  Rupertia physodes Thomas W. Nelson, Jane Nelson, A. P. Nelson 1977-7-1 3573 Humboldt Along road 2S08 below Goat Hill. 1524 Comment
  HSC9565  Rytidosperma penicillatum True Hoyle 1967-7-5 27467 Humboldt Humboldt State University campus lawn, just below Founder's Hall, near the steps to the Science Bldg. 30 Comment
  HSC9566  Rytidosperma penicillatum J. P. Tracy 1942-6-28 17267 Humboldt Bald Mountain, at Hungry Hollow 610 Comment
  HSC26873  Salicornia depressa Clifton Raymond Chesbrough 1973-6-20 103 Humboldt .25 mi. N of Eureka slough along Hwy. 101 Comment
  UC463039  Salix boothii Leland S. Smith 1931-9-16 2633 Humboldt Babbitt Spring; Jones Valley Range, Tahoe Nat'l Forest 2133 Comment
Read comments
Jul 10 2015
  UC1173607  Salix eastwoodiae Joseph P. Tracy 1935-7-26 14269 Humboldt meadows at Waterdog Lakes; Trinity Summit 1828 Comment
  CAS-BOT-BC103813  Salix exigua John H. Thomas 1966-3-19 11483 Humboldt Near Westhaven Drive and highway 101, Trinidad 60 Comment
  HSC19945  Salix exigua var. hindsiana C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-17 1330 Humboldt Trinity River, near bridge on Trinity Hwy. 152 Comment
  UC481304  Salix exigua var. hindsiana Harold E. Parks and Joseph P. Tracy 1931-5-17 971 Humboldt mouth of Willow Creek at Trinity R. 150 Comment
  UC512022  Salix exigua var. hindsiana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1336 Humboldt 1 mi below bridge on Trinity Hwy. (on ...bank above Trinity R.) 152 Comment
  CAS-BOT-BC104116  Salix hindsiana Henry M. Pollard 1945-9-4 s.n. Humboldt Near Camp Creek, Klamath River Canyon Comment
  CAS-BOT-BC104117  Salix hindsiana Doris K. Kildale 1926-9-19 2804 Humboldt Fort Seward 98 Comment
  CAS-BOT-BC107703  Salix hookeriana Harold E. Parks 1931-5-12 952 Humboldt Samoa, Humboldt Bay Comment
  HSC19966  Salix hookeriana J. P. Tracy, H. E. Parks Apr 1923 7923 Humboldt Little River Lagoon Comment
  HSC98009  Salix hookeriana Cara Witte 2007-7-26 593 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  JEPS12958  Salix hookeriana Joseph P. Tracy 1931-8-9 9609 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  JEPS13090  Salix hookeriana Joseph P. Tracy 1936-10-24 15202 Humboldt Fortuna 15 Comment
  POM219324  Salix hookeriana H. E. Parks 1931-5-28 999 Humboldt Little River Lagoon. 0 Comment
  UC249537  Salix hookeriana Joseph P. Tracy 1922-3-26 5984 Humboldt Fieldbrook Northern Coast Region 60 Comment
  UC275526  Salix hookeriana Joseph P. Tracy 1924-9-21 6884 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  UC303035  Salix hookeriana Joseph P. Tracy 1926-11-21 7832 Humboldt near mouth of Little R.; Northern Coast Ranges 6 Comment
  UC481336  Salix hookeriana Harold E. Parks August, 1931 1057 Humboldt Bishop Pine Lodge Trinidad 150 Comment
  UC481378  Salix hookeriana Harold E. Parks and J. P. Tracy 1931-3-26 904 Humboldt on Van Duzen River Alton; Van Duzen River 15 Comment
  UC490476  Salix hookeriana H. E. Parks and Joseph P. Tracy 1932-8-13 10344 Humboldt vicinity Trinidad; Northern Coast Region 60 Comment
  UC512092  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1216 Humboldt 1 mi n Samoa (in pine barrens near the coast) Comment
  UC512110  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1205 Humboldt 4 1/2 mi s Trinidad (Little River Lagoon); Little River Lagoon Comment
  UC519334  Salix hookeriana H. E. Parks and Joseph P. Tracy 1933-6-11 12540 Humboldt S. Fork Eel R. near Miranda; Northern Coast Ranges, S. Fork Eel R. 91 Comment
  UC519342  Salix hookeriana Joseph P. Tracy 1933-10-8 13087 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UC537984  Salix hookeriana Joseph P. Tracy 1934-9-22 13676 Humboldt mouth of Mad R.; North Coast Ranges, Mad R. 9 Comment
  UCSB10844  Salix laevigata Bracelin, H. 1931-5-1 Humboldt Sylvandale, between Miranda and Meyers, South Fork of Eel River Comment
  UCSB11960  Salix laevigata Tracy, Joseph 1933-6-9 Humboldt Shively 30 Comment
  UC1196588  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1932-5-14 10064 Humboldt Scotia Bluffs North Coast Ranges, Scotia Bluffs 30 Comment
  UC481261  Salix lasiandra subsp. lasiandra Harold E. Parks 1931-5-20 991 Humboldt Blue Lake Mad R., Blue Lake 15 Comment
  RSA0038347  Salix lasiandra var. lancifolia Harold E. Parks 1931-5-14 0959 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  CAS-BOT-BC128192  Salix lasiandra var. lasiandra Harold E. Parks; Susan T. Parks 1932-5-12 1150 Humboldt In swamp near bridge at mouth of Maple Creek, Big Lagoon Comment
  CAS-BOT-BC128195  Salix lasiandra var. lasiandra Marcus E. Jones 1924-4-25 s.n. Humboldt Dyerville Comment
  CAS-BOT-BC107600  Salix lasiolepis Joseph P. Tracy 1933-3-19 10931 Humboldt Blue Slide, on Van Duzen River 91 Comment
  HSC19990  Salix lasiolepis R. Spellenberg, D. Sutherland, A. Sylvester 1966-3-27 1358 Humboldt 1.5 mi. E of Blue Lake on Hwy. 299 Comment
  JEPS12945  Salix lasiolepis Joseph P. Tracy 1929-10-20 8681 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 762 Comment
  RSA34303  Salix lasiolepis Doris K. Kildale 1928-3-27 4359 Humboldt [Unspecified] Comment
  UC469424  Salix lasiolepis Joseph P. Tracy 1931-8-16 9614 Humboldt vicinity of Garberbille; Northern Coast Ranges 121 Comment
  UC481175  Salix lasiolepis Harold E. and Susan T. Parks 1931-8-15 1079 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 100 Comment
  UC490471  Salix lasiolepis Joseph P. Tracy 1932-9-5 10770 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC490549  Salix lasiolepis Joseph P. Tracy 1932-4-24 9804 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC506388  Salix lasiolepis Joseph P. Tracy 1932-8-21 10357 Humboldt Three Cabins Northern Coast Ranges, Chaparral Mountain (on lower western foothills of mt.) 457 Comment
  UC511982  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1247 Humboldt Van Duzen R. at Blue Slide; Van Duzen R., Blue Slide 91 Comment
  UC512113  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1203 Humboldt 4 1/2 mi. s. Trinidad (Little R. Lagoon); Little R. Lagoon Comment
  CDA39555  Salix lasiolepis Gordon Leppig 1999-4-15 1119 Humboldt Big Lagoon County Park; Big Lagoon Bog. 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
  SBBG22044  Salix melanopsis R. F. Thorne 1957-9-2 Humboldt branch of Eel River at Burlington State Park, just S of Weott Comment
  UC1173599  Salix melanopsis Joseph P. Tracy 1937-7-24 15507 Humboldt Mad R. at mouth of Lindsey Creek Lindsey Creek; Mad R. 15 Comment
  UC1196565  Salix melanopsis H. E. Parks and Joseph P. Tracy 1931-3-26 9299 Humboldt Van Duzen R. near Alton; Northern Coast Ranges, Van Duzen R. 30 Comment
  UC1196639  Salix melanopsis Joseph P. Tracy 1932-8-27 10756 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R. 30 Comment
  UC481284  Salix melanopsis Harold E. Parks 1931-5-14 960 Humboldt Van Duzen R. between Alton and Carlotta; Van Duzen R. 15 Comment
  UC481311  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 974 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC481826  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt 6 km. s. Alton (e. of Redwood Hwy.) 20 Comment
  UC519375  Salix melanopsis Joseph P. Tracy 1933-6-11 12551 Humboldt S. Fork Eel R. near Miranda; Northern Coast Ranges, S. Fork Eel R. 60 Comment
  UC55940  Salix melanopsis J. P. Tracy 1900-9-9 943 Humboldt Yager Creek near Hydesville (along slough); Yager Creek Comment
  CAS-BOT-BC129162  Salix scouleriana Harold E. Parks 1931-5-12 955 a Humboldt Samoa, Humboldt Bay, near sea level Comment
  CAS-BOT-BC129165  Salix scouleriana Harold E. Parks 1933-1-1 1341 Humboldt Spruce Cove, Highway 101, Trinidad 64 Comment
  HSC38187  Salix scouleriana Thomas W. Nelson, James Nelson 1976-3-5 3293 Humboldt Beside Hwy. 101 near summit of Table Bluff Comment
  HSC98806  Salix scouleriana Cara Witte 2007-7-12 527 Humboldt Ammon Ridge Road. Approximately 2 miles southeast of intersection with 5N10. 1353 Comment
  JEPS38417  Salix scouleriana W. L. Jepson 1932-8-1 16466 Humboldt Bull Creek 121 Comment
  UC1196697  Salix scouleriana Joseph P. Tracy 1923-1-7 6135 Humboldt near Ferndale Ferndale; Northern Coast Ranges 15 Comment
  UC275521  Salix scouleriana Joseph P. Tracy 1924-7-4 6716 Humboldt at Hungry Hollow Bald Mt.; Northern Coast Ranges 762 Comment
  UC490530  Salix scouleriana Joseph P. Tracy 1932-7-13 10507 Humboldt open groung at Corral Prairie (back from the meadows); Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  CAS-BOT-BC128951  Salix sitchensis L. R. Abrams 1916-7-11 6047 Humboldt In river gravel, mouth of Grizzly Creek on Van Duzen River Comment
  CAS-BOT-BC128958  Salix sitchensis John H. Thomas 1966-3-19 11483 Humboldt Near Westhaven Drive and highway 101, Trinidad 60 Comment
  HSC20107  Salix sitchensis H. E. Parks 1931-3-24 903 Humboldt Orick Comment
  HSC37880  Salix sitchensis Thomas W. Nelson 1976-3-22 2282 Humboldt Cooper's Gulch near Franklin Elementary School Comment
  HSC59689  Salix sitchensis Marla J. Carollo 1979-5-4 61 Humboldt Clam Beach Lagoon, near Little River Beach, adjacent to Hwy. 101 Comment
  HSC79548  Salix sitchensis Kenneth Clark 1980-3-27 548 Humboldt Creek on W slope of Dead Man's Gulch 114 Comment
  HSC90388  Salix sitchensis Jean Hanson 1980-3-8 7 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  JEPS14775  Salix sitchensis Joseph P. Tracy 1933-3-19 10930 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  UC303029  Salix sitchensis Joseph P. Tracy 1926-2-21 7358 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC490533  Salix sitchensis Joseph P. Tracy 1932-7-16 10646 Humboldt open ground at Corral Prairie; Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  UC526709  Salix sitchensis Joseph P. Tracy 1934-3-25 13168 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  CDA39588  Salix sitchensis Peter Haggard 1993-4-17 s.n. Humboldt Van Duzen River west of Bridgeville on Hwy 36. 0 Comment
  HSC20130  Salix tracyi H. E. Parks 1931-5-17 976 Humboldt Humboldt and Trinity Cos., Willow Creek 152 Comment
  UC1196609  Salix tracyi Joseph P. Tracy 1934-9-30 13680 Humboldt Van Duzen River at Bridgeville 198 Comment
  POM284213  Sambucus caerulea Lyman Benson 1928-7-12 490 Humboldt Weott Ranger Station 91 Comment
  RSA2192  Sambucus callicarpa C. B. Wolf 1931-3-26 s.n. Humboldt from coastal bluffs, 1 mile outh of Trinidad 91 Comment
  SD42295  Sambucus nigra subsp. caerulea Carl B. Wolf 1937-9-8 9299 Humboldt Bull Creek, Petrolia Road, 6.0 miles west of Redwood Highway. 180 Comment
  HSC59562  Sambucus racemosa var. racemosa Rick Lundquist 1979-4-6 3 Humboldt Arcata, SE Corner of 7th and Union St. 24 Comment
  UCSB25080  Sambucus racemosa var. racemosa Keefe, Joseph 1967-7-8 Humboldt Juntion Crannell Road and Little River Drive, north of Eureka 6 Comment
  HSC26344  Sanicula arctopoides Thomas W. Nelson 1971-4-12 377 Humboldt S spit of Humboldt Bay. Comment
  HSC48062  Sanicula crassicaulis Thomas W. Nelson 1978-4-23 3886 Humboldt N of Samoa Comment
  RSA254743  Sanicula crassicaulis Thomas W. Nelson, James Nelson 1973-5-28 943 Humboldt McKeown Ranch north of Dinsmore. Comment
  RSA167410  Sanicula crassicaulis Joseph P. Tracy 1950-7-6 19023 Humboldt Sproston s Place, 3 miles south of Burr Valley 1067 Comment
  UC1022528  Sanicula crassicaulis C. Ritchie Bell 1952-5-14 3 X456 Humboldt Patrick Point State Park Comment
  UC1022533  Sanicula crassicaulis C. Ritchie Bell 1952-5-3 1326 Humboldt near Cobbs (along Mad River); Mad River Comment
  HSC55291  Sanicula tuberosa Terry Griswold, Butler 1979-7-10 6264 Humboldt Near Board Camp Mountain 1372 Comment
  UC1541383  Sanicula tuberosa W. K. Parks July 1933 Humboldt Buck Mountain Comment
  SEINET13945259 Image available Sanicula tuberosa Thomas Nelson 1978-1 4095 Humboldt T2N, R5E, Sec 33, elev 2500 ft. Oak woodland on McKeown Ranch north of Dinsmore 762 Comment
  POM232030  Satureja douglasii I. L. Wiggins 1930-7-11 4681 Humboldt Near Samoa. Comment
  POM284650  Satureja douglasii Lyman Benson 1929-7-16 s.n. Humboldt Weott Ranger Station. Comment
  SEINET3411470 Image available Saxifraga mertensiana Lincoln Constance, Reed C Rollins 1942-5-11 2869 Humboldt Three miles W of East Fork of Willow Creek Comment
  UC154143  Saxifraga mertensiana Mrs. M. H. Manning 1902-3 Humboldt near Hupa Comment
  JEPS945  Scandix pecten-veneris Joseph P. Tracy 1923-6-20 6342 Humboldt Northern Coast Ranges, Garberville Garberville; Northern Coast Ranges, Garberville 121 Comment
  RSA53798  Schoenoplectus acutus var. occidentalis Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  CHSC84708  Schoenoplectus pungens L. P. Janeway 2003-7-27 7932 Humboldt North Coast. East shore of Big Lagoon, on north side of mouth of Tom Creek. 2 Comment
  POM87952  Schoenoplectus pungens Le Roy Abrams, Rimo C. Bacigalupi 8268 Humboldt Big Lagoon, south of Orick. Comment
  UCD60367  Schoenoplectus pungens var. badius Gordon Leppig 1998-6-25 855 Humboldt McKinleyville, Mad River Estuary at end of Murray Rd. 0 Comment
  CAS-BOT-BC111704  Schoenoplectus pungens var. badius Doris K. Kildale 1927-6-25 3550 Humboldt Shelter Cove, coastal Comment
  HSC36077  Scirpus microcarpus Jack Watson 1962-5-2 Humboldt Wet soil along game pens of HSU campus Comment
  HSC45972  Scirpus microcarpus J. P. Smith 1973-5-26 6859 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UCSB55386  Scirpus microcarpus Wolf, Carl 1937-9-11 Humboldt Redwood Highway, 3 mi. N of Orick at Davison's Ranch; on Prairie Creek 60 Comment
  UCD139810  Scoliopus bigelovii R. N. Raynor 1935-5-22 s.n. Humboldt Ford Seward. Comment
  CAS-BOT-BC517413  Scoliopus bigelovii Doris K. Kildale 1927-3-19 2903 Humboldt Luffenholtz Creek near Trinidad Comment
  SEINET12050518  Scoliopus bigelovii F. H. Utech 1988-1 88 -024 Humboldt 1.5 mi WNW of Weott on Ave of the Giants (alt US 101), W.D. & W.H. Clark Redwood Grove 40 Comment
  UC1103134  Scribneria bolanderi Joseph P. Tracy 1932-6-26 10275 Humboldt North Coast Ranges, Fort Baker Ranch Fort Baker Ranch Fort Baker Ranch; North Coast Ranges, Fort Baker Ranch 762 Comment
  HSC100682  Scrophularia californica Carl C. Marshall Apr 1886 175 Humboldt Everywhere. Comment
  JEPS62921  Scutellaria antirrhinoides Joseph P. Tracy 1930-6-15 8763 Humboldt Dobbyn Creek 152 Comment
  UC1222864  Scutellaria antirrhinoides Joseph P. Tracy 1951-6-26 19577 Humboldt Twin Lakes vicinity, Snow Camp to Twin Lakes Twin Lakes vicinity Comment
  UC577335  Scutellaria antirrhinoides Joseph P. Tracy 1937-7-24 15520 Humboldt head of Devil'sw Hole (Trinity Summit); , Devil'sw Hole 1676 Comment
  HSC35620  Scutellaria californica Thomas W. Nelson, B. Reinhardt 1975-7-30 2115 Humboldt E of Pilot Rock Comment
  SEINET12218663  Sedum divergens J. P. Tracy 1950-1 19294 Humboldt Croghan Hole on Trinity Summit 1676 Comment
  UC667083  Sedum laxum subsp. heckneri Harold E. Parks and Joseph P. Tracy 1934-6-27 11064 Humboldt Grouse Mt. 1432 Comment
Read comments
Aug 17 2011
  HSC63189  Sedum radiatum M. A. Baker 1979-6-7 800 Humboldt 7.1 mi. E of Berry Summit along Hwy. 299 Comment
  CAS-BOT-BC63828  Sedum spathulifolium W. R. Dudley 1899-6-1 s.n. Humboldt Vicinity of Scotia Comment
  HSC63239  Sedum spathulifolium var. spathulifolium M. A. Baker 1979-6-7 801 Humboldt Hwy. 299, 3 km N of Berry Summit Comment
  UC1776736  Selaginella kraussiana Gordon Leppig 2000-4-12 1290 Humboldt in redwood forest behind Humboldt State Universiy, at base of stump near Fern Lake spillway Arcata 48 Comment
  CAS-BOT-BC62180  Selaginella oregana Doris K. Kildale 1926-1-24 1492 Humboldt Kneeland Prairie summit 853 Comment
  JEPS37418  Senecio glomeratus W. L. Jepson 1932-8-8 16534 Humboldt Dyerville Perrott Creek, Dyerville 304 Comment
  UC1239501  Senecio glomeratus Joseph P. Tracy 1936-8-24 15173 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  HSC98548  Senecio integerrimus var. major Cara Witte 2008-6-9 696 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1509 Comment
  BLMAR294  Senecio integerrimus var. major Jennifer Anthony-Wheeler 2002-4-30 294 Humboldt Clark Butte 670 Comment
  UC1223157  Senecio integerrimus var. major Joseph P. Tracy 1950-6-15 18793 Humboldt 7 mi n Harris (Jenk's Ranch); Mail Ridge Comment
  UCD135618  Senecio minimus S. W. Cosby 1921-9-27 s.n. Humboldt south of Ferndale. Comment
  UCSB30588  Senecio minimus Edwards, David 1974-8-14 Humboldt S. side of dirt road, ca. 1/2-3/4 mi. in on dirt road from jct. with Fickle Hill Rd., ca. 1/4 mi. E. of jct. of Fickle Hill Rd. and Park Ave., Arcata Comment
  UC128739  Senecio sylvaticus Joseph Burtt Davy and Walter C. Blasdale 1899-6-12 5446 Humboldt near Elk Prairie; north-western California Comment
  UC581698  Senecio sylvaticus Joseph P. Tracy 1930-7-26 9116 Humboldt White Thorn Valley 304 Comment
  HSC58076  Senecio triangularis G. L. Clifton, Griswold 1979-8-1 11977 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC58178  Senecio triangularis G. L. Clifton, Griswold 1979-8-2 12262 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC29884  Senecio vulgaris Thomas W. Nelson 1971-11-11 600 Humboldt Foot of Murray Rd., McKinleyville. Comment
  RSA0013853  Senecio vulgaris R. F. Thorne, Percy C. Everett 1965-8-8 35257 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  SEINET7881647 Image available Senecio vulgaris H. E. Parks, S. T. Parks 1934-1 24234 Humboldt Spruce Cove, Trinidad 61 Comment
  UC1196919  Sequoia sempervirens Joseph P. Tracy 1920-5-18 5319 Humboldt Bull Creek Flat Northern Coast Ranges, Eel River (along Eel River from North Fork to Scotia) 60 Comment
  UCD135226  Sequoia sempervirens C. H. Lamoureux 1956-3-17 1044 Humboldt At south boundary of Jensen Grove, between Meyers and Miranda on U.S. Highway 101. Comment
  SEINET6727395  Sequoia sempervirens P. Lehenbauer s.n. Humboldt [None listed] Comment
  HSC99141  Sericocarpus oregonensis var. oregonensis Cara Witte 2007-7-26 592 Humboldt Along National Forest 1 on Kinsey Ridge. 1/4 mile north of intersection with Forest Service Road 4N06. 1262 Comment
  HSC19856  Sherardia arvensis F. B. Plett 1963-4-27 37 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  POM203228  Sherardia arvensis M. S. Jussel 1931-5-2 s.n. Humboldt 20 mi. N. of Garberville. Comment
  POM208991  Sidalcea diploscypha Lincoln Constance 1934-5-23 613 Humboldt Look Prairie, Bull Creek Watershed, Humboldt Redwood Park. 366 Comment
  UC668135  Sidalcea malachroides Joseph P. Tracy 1938-6-7 15860 Humboldt 5 mi se Korbel; Canyon Creek 152 Comment
  HSC58334  Sidalcea malviflora subsp. asprella Overton, Butler 1979-8-2 12637 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC56366  Sidalcea malviflora subsp. nana Griswold, Butler 1979-7-10 6218 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  BLMAR280  Sidalcea malviflora subsp. patula Jennifer Anthony-Wheeler 1999-5-28 280 Humboldt King range, growing along windy pt rd about 1/2 way to the spring exclosure 140 Comment
  HSC103274  Sidalcea malviflora subsp. patula John McRae 2007-6-10 Humboldt Approx. 75 ft. N of NE corner of Fieldbrook School property, west side of Fieldbrook Rd., on private property. 44 Comment
  HSC104338  Sidalcea malviflora subsp. patula James Regan, Humboldt Redwood Co., LLC 9 Humboldt McKinleyville; Dow's Prairie, near Arcata Airport 61 Comment
  UC205469  Sidalcea oregana subsp. eximia Joseph P. Tracy 1920-7-25 5344 Humboldt Dows Prairie Northern Coast Region, around Humboldt Bay (around Humboldt Bay) 60 Comment
  HSC57901  Sidalcea oregana subsp. spicata Gilbert Muth 1979-7-31 11492 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  UC161013  Silene antirrhina Joseph P. Tracy 1908-6 2801 Humboldt opposite Buck Mountain (Valley of Van Duzen River, in sand bar in river); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC100416  Silene californica Carl C. Marshall Jun 1885 93 Humboldt Hills everywhere. Comment
  HSC76246  Silene campanulata subsp. glandulosa Denis Kearns 1981-6-24 1 Humboldt Near Cedar Camp 1219 Comment
  POM257443  Silene gallica H. E. Parks, S. T. Parks 1936-06 5634 Humboldt Spruce Cove, Trinidad. Comment
  UC1137896  Silene hookeri H. S. Yates 1936-6-17 5719 Humboldt Burr Valley South Fork Peak Quad. Comment
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Aug 11 2014
  CAS-BOT-BC389054  Silene laciniata subsp. californica Doris K. Kildale 1928-6-24 7060 Humboldt Redwood Creek at Berry's 289 Comment
  HSC4166  Silene laciniata subsp. californica J. Wendell Howe 1933-6-12 1208 Humboldt Near Willow Creek Comment
  HSC102046  Silene lemmonii M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 949 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  UC175305  Sisyrinchium bellum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3587 Humboldt near Hydesville; Northern Coast Region 30 Comment
  HSC62863  Sisyrinchium californicum J. M. DiTomaso 1979-5-20 1047 Humboldt Big Lagoon Park, 8 mi. N of Trinidad Comment
  HSC90646  Sisyrinchium californicum Gail Newton 1983-6-5 3553 Humboldt Elk River Wildlife Area, Eureka Comment
  UC1103494  Smilacina racemosa Joseph P. Tracy 1937-7-2 15413 Humboldt head of Little Hors-Linto Creek Trinity Summit 1371 Comment
  UC1197799  Smilacina racemosa Joseph P. Tracy 1914-5-17 4474 Humboldt Cumens claim Northern Coast Region, region about Humboldt Bay (on ridge between Ryans Slough and Freshwater Creek) 304 Comment
  HSC12029  Solanum americanum D. Santana 1970-11-2 94 Humboldt 3 mi. S of Trinidad on old Hwy. 1 Comment
  UC673109  Solanum americanum Joseph P. Tracy 1940-10-17 16767 Humboldt 2 - 5 mi e of the South Fork (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  POM187917  Solidago canadensis subsp. elongata Marcus E. Jones 1931-7-12 29135 Humboldt Alton. Comment
  CAS-BOT-BC365433  Solidago elongata Doris K. Kildale 1926-8-17 1211 Humboldt Trinity Summit 1828 Comment
  CAS-BOT-BC365444  Solidago elongata L. R. Abrams 1927-9-1 12064 Humboldt Stone Lagoon Comment
  UC1070251  Solidago elongata H. L. Person 1932-7-19 Humboldt Lindsay Creek Eureka Quad, Lindsay Creek Comment
  RSA254746  Solidago spathulata Thomas W. Nelson 1971-11-11 598 Humboldt At the foot of Murray Road, McKinleyville. Comment
  SEINET11383162 Image available Solidago spathulata S. K. Harris 1939-1 990 Humboldt At Samoa. Comment
  UC205149  Solidago velutina subsp. californica Joseph P. Tracy 1919-9-13 5189 Humboldt Valley of Trinity River near mouth Willow Creek; Northern Coast Ranges, Valley Trinity River near mouth Willo 152 Comment
  RSA85191  Sparganium angustifolium F. W. Peirson 1926-7-12 7042 Humboldt Humboldt County: Orick Comment
  SEINET3825670  Sparganium eurycarpum Unknown 1912-8-20 2987 Humboldt Lower eal River Valley Comment
  HSC90229  Spartina densiflora L. Watson, J. Meninga Aug 1990 11 Humboldt Near Manila, Mad River Slough and Dunes, 200 yds. N of parking lot Comment
  RSA10096  Spartina densiflora Joseph P. Tracy 1924-8-4 6738 Humboldt Eureka, Marsh at R.R. station Comment
  RSA183496  Spartina densiflora D. E. Anderson 1963-9-15 2814 Humboldt Humbolt Bay Comment
  UCR32178  Spartina foliosa David J. Keil 1983-7-2 17296 Humboldt Humboldt Bay salt marsh at Arcata Corporation Yard [600 G St.] Comment
  HSC4241  Spergula arvensis S. R. Johnson 1965-3-14 2 Humboldt 1.5 mi N of Luffenholtz Beach Comment
  HSC89986  Spergularia canadensis var. occidentalis Leonel Arguello 1989-7-15 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  HSC37994  Spergularia macrotheca Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  POM188638  Spergularia macrotheca Marcus E. Jones 1931-7-16 28873 Humboldt Arcata. Comment
  HSC45059  Spergularia rubra R. Sutherland 1978-5-12 6 .12578 Humboldt Mckee Flat 288 Comment
  HSC79380  Spergularia salina Kenneth Clark 1980-5-10 658 Humboldt Above mean high tide on S and E facing bluffs 5 Comment
  UC577329  Stachys ajugoides var. ajugoides W. E. Peacock 1936-8-1 Humboldt Arcata Bottom Arcata 9 Comment
  JEPS62958  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15954 Humboldt Cape Mendocino 152 Comment
  SFV18496  Stachys ajugoides var. rigida J. A. Riddell 2002-4-19 58 Humboldt Arcata. On the banks of Campbell Creek 10 Comment
  UC726345  Stachys ajugoides var. rigida A. A. Heller 1923-7-8 13769 Humboldt near Pepperwood Comment
  UCLA70872  Stachys ajugoides var. rigida Joseph P. Tracy 1938-7-4 15987 A Humboldt Valley of South Yager Creek 762 Comment
  JEPS63019  Stachys arvensis H. B. Tucker 1935-4-5 Humboldt Arcata Bottom; Arcata 9 Comment
  UCLA71295  Stachys chamissonis C. Epling Aug 1933 Humboldt Clam beach Comment
  UCSB5869  Stachys chamissonis Keator, Glenn 1958-6-18 Humboldt between Capetwon and Ferndale; near Bear River Comment
  HSC61048  Stachys rigida Jimerson, J. Pageau 1979-8-10 747 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  UCD126028  Stachys rigida James P. Smith; Advanced Plant Taxonomy Class 1973 1973-5-26 6863 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  RSA12456  Stachys rigida subsp. quercetorum Carl B. Wolf 1934-6-30 5837 Humboldt 7 miles from Shelter Cove on road to Briceland. 152 Comment
  HSC79495  Stachys rigida var. quercetorum Kenneth Clark 1979-7-1 451 Humboldt Dead Man's Gulch, lower terrace 6 Comment
  SDSU7951  Stachys rigida var. rigida D. F. Howe 1964-8-7 3943 Humboldt Hoopa Valley 1067 Comment
  HSC89600  Stellaria media M. Roantree 1985-4-28 24 Humboldt E side of Trinidad Head, along dirt road Comment
  CAS-BOT-BC87617  Streptanthus tortuosus Volney Rattan 1882-6-1 s.n. Humboldt South Humboldt County. Comment
  HSC99097  Streptanthus tortuosus var. orbiculatus Cara Witte 2007-5-31 152 Humboldt Along National Forest Rte. 1, near Kinsey Ridge, 1.5 miles north of intersection with 4N09 1299 Comment
  JEPS54025  Streptanthus tortuosus var. orbiculatus W. L. Jepson Jul 16 1902-Jul 23 1902 2118 Humboldt Trinity Summit 2133 Comment
  HSC57200  Streptanthus tortuosus var. tortuosus Terry Griswold, Marvin Butler 1979-7-10 7106 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  HSC99368  Streptopus amplexifolius K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 17 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC32139  Streptopus amplexifolius D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5606 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  RSA245218  Symphoricarpos albus var. laevigatus F. D. Jamison 1967-7-22 17 Humboldt 1/2 mile S of junction of Clam Beach Road and Murray Road on the frontage road. Comment
  CHSC68779  Symphyotrichum chilense Vernon H. Oswald 1997-6-5 8539 Humboldt Samoa Dunes Recreation Area at the south tip of the North Spit of Humboldt Bay. 6 Comment
  SBBG60770  Symphyotrichum chilense R. Hartwell 1938-8-6 Humboldt Eureka Comment
  CAS-BOT-BC99005  Symphyotrichum eatonii Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC99369  Symphyotrichum subspicatum W. R. Dudley 1899-6-1 s.n. Humboldt Eureka [Penninsula] Peninsula Comment
  SEINET11071706 Image available Symphytum asperum Mrs. C. M. Wilder 1934-1 Humboldt Near Alton. At the Rolla Bryant place. Comment
  HSC21155  Synthyris reniformis D. E. Anderson 1962-2-10 1917 Humboldt 0.5 mi. E of Big Lagoon Elementary School along abandoned stretch of Hwy. 101 Comment
  HSC49169  Synthyris reniformis J. O. Sawyer 1977-4-23 2836 Humboldt Along Big Hill Rd., E of Hoopa Comment
  JEPS9922  Synthyris reniformis Charlotte Wilder 1922-3-2 Humboldt roadbanks near Beckwith's Mill; North Coast, Carlotta Comment
  CAS-BOT-BC221912  Taeniatherum caput-medusae David D. Keck 1948-7-2 6001 a Humboldt Ridge E. of Redwood Creek on road to Willow Creek, near Berry's Summit, US Route 299 Comment
  UC1173660  Tanacetum balsamita Joseph P. Tracy 1939-9-15 16500 Humboldt Eureka Comment
  UC1199274  Tanacetum balsamita Joseph P. Tracy 1936-6-21 14990 Humboldt Iaqua, near abandoned ranch site Iaqua 609 Comment
  UCD136742  Tanacetum bipinnatum Linda M. Barker 1976-6-1 1561 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC376730  Tanacetum bipinnatum Peter H. Raven 1962-8-31 18079 Humboldt Flats at Dry Lagoon State Park Comment
  POM289716  Tanacetum douglasii Lyman Benson 1928-7-10 452 Humboldt Clam Beach, Trinidad. 15 Comment
  UC1223046  Taraxacum officinale Joseph P. Tracy 1951-6-24 19542 Humboldt Ashland Ridge Kneeland Prairie 762 Comment
  UC1223144  Taraxacum officinale Joseph P. Tracy 1949-6-6 18301 Humboldt 1.5 mi n Forest Service Public Camp (Trinity Summit Road); Happy Camp Mountain 1219 Comment
  HSC56197  Tellima grandiflora Gilbert Muth 1979-8-1 12161 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC100656  Tellima grandiflora Carl C. Marshall May 1886 190 Humboldt Damp places near streams. Comment
  RSA430063  Thelypodium brachycarpum Emery M. Whilton 1941-6-27 s.n. Humboldt Near Eureka Comment
  UC1198812  Thlaspi montanum var. montanum Joseph P. Tracy 1911-7-11 3516 Humboldt hills along Supply Creek (Hupa Valley); Northern Coast Ranges, , Supply Creek 304 Comment
  UC1222644  Thlaspi montanum var. montanum Joseph P. Tracy 1950-6-6 18999 Humboldt on the Albee Road 2 mi s Burr Valley; s of Burr Valley 1158 Comment
  HSC1299  Thuja plicata Francis Winter 1960-5-6 Humboldt 1.0 mi. W of Blue Lake, Hwy. 299 Comment
  JEPS27183  Thuja plicata W. L. Jepson 1902-8-2 2137 Humboldt Wildcat Grade near Ferndale 457 Comment
Read comments
Sep 8 2007
  SBBG34242  Thuja plicata L. Rowntree 1931-7-27 Humboldt near Ferndale Comment
  UCR27987  Thuja plicata A. C. Sanders 1981-8-6 2309 Humboldt Russ Park, just south of Ferndale. 61 Comment
  UC229825  Thysanocarpus curvipes Joseph P. Tracy 1922-4-30 6032 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, , Willow Creek 152 Comment
  HSC6995  Thysanocarpus curvipes E. C. Murczek 1964-4-4 27 Humboldt 8 mi. N of Hoopa Comment
  JEPS49715  Tiarella trifoliata var. unifoliata Chesnut and Drew 1888-7-8 Humboldt Arcata Comment
  UC535760  Tiarella trifoliata var. unifoliata Eleanor Armstrong 1934-5-17 Humboldt Garden Club Grove Comment
  CAS-BOT-BC436913  Tiarella trifoliata var. unifoliata Ira L. Wiggins 1930-7-22 4594 a Humboldt Redwood Creek between Blue Lake and Willow Creek Comment
  UC64644  Tiarella trifoliata var. unifoliata H. M. Hall 1899-9 Humboldt Redwood forests along Eel River; along Eel River Comment
  UC402457  Tolmiea diplomenziesii P. E. Goddard 1901-7-6 25 Humboldt Hupa Comment
  UC727683  Torilis arvensis Milo S. Baker 1946-6-15 11484 Humboldt Trinity Hwy, Berry's Mt. Comment
  HSC37517  Torreyochloa pallida var. pauciflora J. D. Ackerman, A. M. Montalvo 1975-8-9 634 Humboldt Arcata, W end road, near Arcata Overhead (101 overpass) Comment
  UC668182  Toxicodendron diversilobum Joseph P. Tracy 1937-5-30 15301 Humboldt 5 mi. n. Blocksburg (Larrabee Creek); Larrabee Creek 365 Comment
  RSA0001653  Tracyina rostrata Joseph P. Tracy 1916-6-20 4735 Humboldt Southeastern Humboldt county. Alder Point on Eal River. 305 Comment
  HSC56236  Trautvetteria caroliniensis Walter Overton 1979-8-1 12318 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  JEPS43082  Trientalis latifolia Joseph P. Tracy 1926-5-22 7509 Humboldt Prairie Creek; Northern Coast Ranges, Prairie Creek 152 Comment
  HSC44771  Trientalis latifolia Thomas W. Nelson, Jane P. Nelson 1977-7-1 3550 Humboldt Along north side of ridge between Bear and Blanket Creeks, unsurveyed section east of Sec. 25 1494 Comment
  SD104865  Trifolium arvense Darley Howe 1979-6-25 5195 Humboldt one mile west of Willow Creek, highway 299 Comment
  UC1197494  Trifolium barbigerum J. P. Tracy 1910-5-22 3138 Humboldt immediate vicinity Eureka 0 Comment
  UC1197181  Trifolium bifidum var. decipiens Joseph P. Tracy 1906-5-6 2448 Humboldt near Hydesville; North Coast Ranges 60 Comment
  UC1541608  Trifolium bifidum var. decipiens Parks and Tracy 1930-5-25 862 Humboldt Laribee Valley 762 Comment
  UC1197050  Trifolium campestre Joseph P. Tracy 1905-7-1 2203 Humboldt immediate vicinity Eureka 0 Comment
  HSC100886  Trifolium cyathiferum Carl C. Marshall Jun 1887 453 Humboldt Jewett Creek. Comment
  UC162801  Trifolium cyathiferum Joseph P. Tracy 1903-5-23 1902 Humboldt along Eel River (Alder Point); Northern Coast Ranges 91 Comment
  UC1223478  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1933-5-20 12242 Humboldt Petrolia Mattole Valley Comment
  UC179921  Trifolium dubium Joseph P. Tracy 1914-7-4 4522 Humboldt between Korbel and Angels Ranch roadside; Northern Coast Ranges Comment
  UCD108880  Trifolium dubium W. A. Williams 1951-6-1 s.n. Humboldt Humboldt County. Comment
  HSC100531  Trifolium eriocephalum Carl C. Marshall Jun 1886 282 Humboldt Bald Hills, near Orcutt's. Comment
  HSC35278  Trifolium eriocephalum J. D. Ackerman 1975-6-18 470 Humboldt Big Hill Rd., 10.4 mi. E of Hoopa and Hwy. 96 Comment
  UC162814  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1908-6 2759 Humboldt opposite Buck Mtn; Valley of Van Duzen River 762 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
  UC1223459  Trifolium fucatum Joseph P. Tracy 1933-5-20 12221 Humboldt s point of cape (near ocean shore); Cape Mendocino Comment
  RSA183539  Trifolium fucatum var. fucatum G. Bos 1965-5-15 260 Humboldt 3 miles west of Berry Summit along U. S. 299. 610 Comment
  CHSC69825  Trifolium incarnatum J. P. Smith; J. O. Sawyer, Tom Nelson 1972-4-22 Humboldt Freeway exit at Benbow. Planted by the Department of Highways. Comment
  RSA232726  Trifolium incarnatum Larry E. DeBuhr, Gary D. Wallace 1972-5-22 605 Humboldt Along Hwy. 299 west of Arcata. Comment
  UC1223363  Trifolium longipes subsp. hansenii Joseph P. Tracy 1950-6-25 18897 Humboldt Buck Mountain. 3 miles south of Burr Valley, near the Sproston Place. 1158 Comment
  CHSC35554  Trifolium microcephalum James P. Smith 1973-5-26 6870 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC7238  Trifolium microcephalum J. R. Woodside 1963-5-19 2 Humboldt 1 1/4 mi. N of Fairhaven Comment
  UC160907  Trifolium microcephalum J. P. Tracy 1900-5-28 821 Humboldt immediate vicinity Eureka 0 Comment
  HSC45137  Trifolium microcephalum R. Sutherland 1978-6-1 4 .1678 Humboldt 213 Comment
  CHSC10113  Trifolium microdon J. W. Johnson 1962-5-13 1354 Humboldt Arcata. On stabilized sand of ridge 3, Christenson Farm, Samoa Peninsula. Comment
  UC1223344  Trifolium microdon Joseph P. Tracy 1933-5-28 12406 Humboldt Ocean View Cemetery Eureka Comment
  UC180206  Trifolium obtusiflorum Joseph P. Tracy 1914-7-5 4545 Humboldt High Prairie Northern Coast Ranges, Bald Mtn 1066 Comment
  HSC2108  Trifolium pratense Paul Shields 1955-6-10 Humboldt HSU campus Comment
  UCSB30597  Trifolium pratense Edwards, David 1974-7-13 Humboldt North side of 7th St. just W. of its overpass of U.S. 101, Arcata 18 Comment
  UC33491  Trifolium repens Chesnut and Drew 1888-7-11 Humboldt Eureka Comment
  HSC49247  Trifolium subterraneum R. Sutherland 1978-5-19 2 .19578 Humboldt Mckee Flat 296 Comment
  UC1223535  Trifolium variegatum var. melananthum Joseph P. Tracy 1936-6-9 14890 Humboldt 1 mi e Cape Mendocino (Cape Ridge, back of cape) 243 Comment
  HSC15177  Trifolium willdenovii D. E. Anderson 1965-5-8 3643 Humboldt About 2 mi. N of Willow Creek on the road running along E side of Trinity River Comment
  HSC97537  Trifolium willdenovii Ivy Watson 2008-9-28 25 Humboldt Beach N of river mouth, along small tributary E of sand dunes 4 Comment
  UC165539  Trifolium willdenovii Harley P. Chandler June 1901 1450 Humboldt Klamath River North Coast Ranges 304 Comment
  UC249716  Trifolium willdenovii Joseph P. Tracy 1921-5-30 5490 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1197520  Trifolium willdenovii Joseph P. Tracy 1911-6-25 3261 Humboldt Bucksport Northern Coast Ranges 0 Comment
  UC1223313  Trifolium willdenovii Joseph P. Tracy 1950-5-6 18640 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1223316  Trifolium willdenovii Joseph P. Tracy 1942-6-12 17111 Humboldt along hwy (at head of lagoon); Big Lagoon Comment
  UC162834  Trifolium wormskioldii J. P. Tracy 1906-8-18 2547 Humboldt Eureka vicinity 0 Comment
  RSA90994  Trifolium wormskioldii F. W. Peirson 1923-7-11 3619 Humboldt Along road 7 miles north of Arcata. Comment
  UC1197036  Trifolium wormskioldii Joseph P. Tracy 1917-7-8 4827 Humboldt near Newell's Camp (Old Kneeland Prairie Rd on beaten path); Northern Coast Ranges 457 Comment
  UCD109957  Trifolium wormskioldii W. A. Williams 1956-6-19 s.n. Humboldt Domingues Creek. 91 Comment
  UC527822  Triglochin maritima Ira L. Wiggins 1932-6-18 5868 Humboldt at mouth of Little River Little River Comment
  HSC101813  Trillium albidum Kjirsten A. Wayman 2012-5-4 316 Humboldt Bald Hills Road, 16.6 mi. from Hwy 101, N 41.15213 deg. W 123.88952 deg. 768 Comment
  UC1197809  Trillium albidum Joseph P. Tracy 1939-5-14 16285 Humboldt lower foothills of n.w. slope Buck Mt. 762 Comment
  HSC32140  Trillium ovatum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5608 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC15692  Trillium ovatum W. D. Stevens 1964-3-21 1 Humboldt 1.0 mi. E of Hwy. 299 on Lindsay Rd. Comment
  SEINET12050390  Trillium ovatum F. H. Utech 1988-1 88 -020 Humboldt 3.5 mi N of Phillipsville & 1.5 mi S of Miranda along alternative US 101, Avenue of the Giants 85 Comment
  HSC20854  Triphysaria eriantha subsp. eriantha J. R. Woodside 1963-5-1 21 Humboldt 1.25 mi. N of Fairhaven Comment
  UC1222456  Triphysaria pusilla Joseph P. Tracy 1927-5-8 7986 Humboldt vicinity Garberville; vicinity of Garberville 121 Comment
  HSC78970  Triphysaria pusilla L. P. Janeway 1984-5-16 787 Humboldt N Spit of Humboldt Bay, W side of Samoa Rd., 0.25 mi. N of the boat ramp 3 Comment
  SBBG7056  Triphysaria versicolor subsp. faucibarbata H. and M. Dearing 1939-5-25 3444 Humboldt near Arcata Comment
  JEPS10443  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1944-5-14 17467 Humboldt Eureka 6 Comment
  UC1537448  Triphysaria versicolor subsp. versicolor Gordon H. True Jr. 1936-5-12 475 Humboldt s Eureka; s of Eureka 15 Comment
  POM126097  Trisetum canescens Joseph P. Tracy 1903-5-22 1877 Humboldt Alder Point on Eel River, in woods. Comment
  UC526695  Trisetum canescens Joseph P. Tracy 1927-6-19 8194 Humboldt Big Lagoon; Northern Coast Region 6 Comment
  HSC13417  Trisetum cernuum D. J. Wilder 1965-5-15 35 Humboldt 2 mi. E of Freshwater on Road to Kneeland Comment
  SEINET11682986  Trisetum cernuum K. S. Erdman 1970-1 4814 Humboldt Fern Canyon at mouth of Home Creek, Prairie Creek SP in Redwood National Park Comment
  UC1197711  Triteleia hyacinthina Joseph P. Tracy 1935-5-25 13869 Humboldt Fort Seward 106 Comment
  JEPS559  Triteleia hyacinthina Joseph P. Tracy 1937-7-19 15451 Humboldt nw slope Buck Mountain (lower foothills) 762 Comment
  UC180201  Triteleia laxa Joseph P. Tracy 1914-5-14 4453 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  CAS-BOT-BC526353  Triteleia laxa Ella Dales Cantelow 1939-6-4 3916 Humboldt 11.3 miles north of Garberville, road to Alder Point Comment
  UC15045  Triteleia peduncularis Joseph Burtt Davy and Walter C. Blasdale 1899-5 5503 B Humboldt North Coast Ranges Comment
  UC15046  Triteleia peduncularis J. P. Tracy 1898-7-5 266 Humboldt Ryan's Slough Hill Eureka vicinity 0 Comment
  CHSC79895  Triticum aestivum Gordon Leppig; Sylvia Leppig, Kai Neander 2000-4-14 1293 Humboldt Arcata, UTM zone 10, 4525N, 409E. 3 Comment
  HSC13437  Triticum aestivum D. J. McVean 1965-5-16 58 Humboldt Arcata, Game Pens at H.S.U. Comment
  SJSU136  Tsuga heterophylla Emily D. Smith 1934-8-23 Humboldt Big Lagoon midway between Trinidad & Orick Comment
  HSC30346  Umbellularia californica Dale R. Gradek 1974-5-28 91 Humboldt 1.0mi E of Hwy. 101 on N Bank Rd. 30 Comment
  SEINET12026866  Urtica dioica J. P. Tracy 1950-1 19369 Humboldt Klamath River, near Slate Creek, below Orleans 8 miles 122 Comment
  HSC99668  Urtica dioica subsp. gracilis Steven Lee 2004-4-6 10 Humboldt Arcata Community Forest, along Jolly Giant Creek. Comment
  UC302988  Urtica dioica subsp. gracilis Joseph P. Tracy 1926-5-25 7516 Humboldt around Humboldt Bay (Northern Coast Ranges, Elk River Valley); Northern Coast Ranges, Elk River Valley 30 Comment
  HSC49505  Utricularia macrorhiza R. York 1979-4-13 225 Humboldt Behind grammar school in Fieldbrook. Comment
  CHSC19510  Vaccinium ovatum P. F. Yull 1966-3-24 112 Humboldt South of Manila School. 120 yards from ocean. Comment
  HSC7912  Vaccinium ovatum W. R. Rogers 1966-5-1 225 Humboldt Mill Creek Comment
  HSC95645  Vaccinium ovatum Andrea Pickart 2002-4-5 41 Humboldt Lanphere Dunes 15 Comment
  OBI23023  Vaccinium ovatum Robert J. Rodin 1961-8-11 6807 a Humboldt Near Pepperwood Comment
  POM285977  Vaccinium ovatum Lyman Benson 1927-7-11 56 Humboldt Weott Ranger Station. 107 Comment
  UC412665  Vaccinium ovatum Harley P. Chandler May 1901 1167 Humboldt Eureka North Coast Ranges 30 Comment
  UC1537151  Vaccinium ovatum Gordon H. True Jr. 1936-5-11 467 Humboldt 8 mi w Miranda; Salmon Creek 152 Comment
  OBI14439  Vaccinium parvifolium H. E. McMinn 1931-6-28 2543 B Humboldt Orick to Requa Comment
  UC1121143  Vaccinium parvifolium A. E. Wieslander 1931-5-19 205 Humboldt Near Orleans; Klamath Forest, Hoopa Quad. Comment
  SJSU2573  Valeriana sitchensis subsp. scouleri H. L. Buckalew 1962-7-2 Humboldt junction of Willow Cr & E Fork Willow Cr on Hwy 299 Comment
  UC1239584  Valeriana sitchensis subsp. scouleri Mrs. R. D. Douglass 1919-5-8 Humboldt near Ferndale; Nothern Coast Region Comment
  CAS-BOT-BC76056  Vancouveria hexandra Greg de Nevers 2001-4-17 12244 Humboldt Humboldt Redwoods State Park. 91 Comment
  HSC31137  Vancouveria hexandra J. O. Sawyer 1970-6-24 2266 Humboldt S of Mill Creek Gap, FS 10N02 1433 Comment
  HSC58227  Vancouveria hexandra Walter Overton 1979-8-1 12374 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  UC1196350  Vancouveria hexandra J. P. Tracy 1901-6-10 1135 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UC1196351  Vancouveria hexandra J. P. Tracy 1904-7-31 2136 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UC502924  Vancouveria hexandra Joseph P. Tracy 1932-7-15 10620 Humboldt near Corral Prairie (Trinity Summit); Klamath Mountains, , near Corral Prairie 1524 Comment
  HSC3376  Vancouveria hexandra J. R. Good 1964-5-15 34 Humboldt 1.25 mi. up road along Jolly Giant Creek E of HSU Comment
  CAS-BOT-BC76092  Vancouveria planipetala J. H. Thomas 1949-6-13 921 Humboldt Between Le Perron Flat and Whitneys Peak, along trail. East of town of Orleans. 1066 Comment
  JEPS33032  Vancouveria planipetala Lincoln Constance 1934-5-23 603 Humboldt s slope of mt. above Look Prairie Bull Creek area (Bull Creek area); , above Look Prairie 365 Comment
  RSA505336  Vancouveria planipetala Barbara Ertter, Thomas J. Delendick 1987-5-16 6941 Humboldt 3 miles E of Berry Summit on Hwy 299, 20 airmiles E of Arcata, near large volcanic rock on S side of road above Willow Creek 800 Comment
  UCD95099  Vancouveria planipetala R. N. Raynor 1934-5-7 s.n. Humboldt above Fort Seward. 609 Comment
  UCD95101  Vancouveria planipetala Rolf Y. Berg 1963-7-5 s.n. Humboldt near south entrance to Benbow Lake State Park, U.S. Highway 101. Comment
  HSC98750  Veratrum californicum var. caudatum Cara Witte 2007-7-20 554 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  HSC65844  Veratrum insolitum Gail Newton 1980-6-16 154 Humboldt Near Monks Camp. 1097 Comment
  UC1225858  Veratrum viride Joseph P. Tracy 1942-9-6 17312 Humboldt near McKay (South Fork Mountain); South Fork Mountain 1676 Comment
  HSC12549  Verbena menthifolia C. Kline 1970-10-28 47 Humboldt North Bank Rd., 3 mi. W of Blue Lake, Mad River gravel bottoms Comment
  HSC55630  Veronica americana Walter Overton, Marvin Butler 1979-7-24 9628 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC69633  Veronica americana R. Kalal 1980-6-1 26 Humboldt 0.25 mi. N of Hwy. 299, at Essex turnoff 15 Comment
  HSC98564  Veronica arvensis Cara Witte 2008-6-13 723 Humboldt Forest Service Road 4N32. 0.5 mi. N of intersection with Forest Service Road 4N32B. 1417 Comment
  UC147891  Veronica peregrina subsp. xalapensis J. P. Tracy 1910-5-22 3136 Humboldt immediate vicinity of Eurika 0 Comment
  HSC11992  Veronica persica D. La Conte 1970-10-11 26 Humboldt Ploughed area Comment
  HSC39612  Veronica serpyllifolia subsp. humifusa Thomas W. Nelson, Jane Nelson 1976-6-15 2716 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  HSC99632  Veronica serpyllifolia subsp. humifusa G. L. Clifton, Terry Griswold 1979-7-25 10866 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  POM283765  Veronica serpyllifolia var. humifusa Lyman D. Benson 1928-7-12 478 Humboldt Weott Ranger Station. Seaward N Coast mtn range. S Fork Eel River. 61 Comment
  UC1197468  Vicia americana var. americana Joseph P. Tracy 1914-7-12 4580 Humboldt near Hookton; Northern Coast Region, Humboldt Bay Region 0 Comment
  UC162796  Vicia americana var. americana Joseph P. Tracy 1907-6-25 2575 Humboldt Elk River Valley; Northern Coast Region, Humboldt Bay Region 0 Comment
  RSA138213  Vicia gigantea Volney Rattan 1880-1 s.n. Humboldt Mad River Comment
  RSA168921  Vicia hirsuta Joseph P. Tracy 1943-7-1 17428 Humboldt Vacant lot, 7th and I Streets, Eureka. (Same place as no. 17474). Comment
  HSC86732  Vicia sativa subsp. nigra D. K. Imper May 1987 Humboldt Near Eureka Comment
  HSC89603  Vicia sativa subsp. nigra M. Roantree 1985-4-28 23 Humboldt E side of Trinidad Head, along dirt road Comment
  HSC44738  Vicia sativa subsp. sativa Maralyn O'Meara 1972-6-8 86 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  HSC89710  Vicia sativa subsp. sativa Eric German, Klara Varga, Michele Cardinaux 1989-4-28 43 Humboldt Hwy. 299 near Korbel, 7.5 mi. E of Hwy. 101/299 intersection 122 Comment
  UC1562619  Vicia tetrasperma Barbara Ertter with Thomas J. Delendick 1987-5-16 6912 Humboldt ca 8 mi e Arcata (Hwy 299 roadside, 9.5 mi w of Lord Ellis summit) Comment
  UCD108834  Vicia tetrasperma W. A. Williams 1951-6-15 s.n. Humboldt 10 mi. E. Arcata. Comment
  CAS-BOT-BC263941  Viola adunca C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  RSA12423  Viola adunca Carl B. Wolf 1934-7-2 5871 Humboldt At edge of small lake at Snow Camp. (Mts. east of Korbel). 1372 Comment
  UC176962  Viola adunca Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3586 Humboldt near Hydesville; Northern Coast Region 30 Comment
  CAS-BOT-BC263948  Viola adunca L. B. Kildale 1927-7-23 3788 Humboldt Hoaglin Lake near [Lass---s] Peaks 1524 Comment
  UC1198417  Viola bakeri Joseph P. Tracy 1942-6-23 17257 Humboldt ridges near Water-dog Lakes; Trinity Summit 1828 Comment
  HSC100695  Viola canina Carl C. Marshall Apr 1886 169 Humboldt Everywhere. Comment
  UC1763356  Viola cuneata Davy and Blasdale 1899-1 5510 Humboldt Near Humboldt & Del Norte [county line?] Comment
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  HSC21788  Viola glabella D. K. Smith 1968-4-8 13 Humboldt On West End Rd., ca. 3 mi. from U.S. 299 Comment
  UC1762124  Viola glabella Milo S. Baker 1926-7 145 -26 Humboldt S. Fork Mt., 5 mi from hwy Comment
  HSC32079  Viola hallii D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5593 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC39528  Viola hallii Thomas W. Nelson, Jane P. Nelson 1976-6-15 2713 Humboldt Along old trail from look out to Blocksburg 1585 Comment
  UC275485  Viola hallii Joseph P. Tracy 1925-5-30 7034 Humboldt Laribee Valley; Northern Coast Ranges 701 Comment
  CAS-BOT-BC530123  Viola lobata subsp. integrifolia J. H. Thomas 1949-6-13 907 Humboldt along trail between Le Perron Flat and Whiteys Peak; Six Rivers National Forest 1371 Comment
  UC1103558  Viola macloskeyi Joseph P. Tracy 1947-6-26 17744 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC21822  Viola ocellata D. E. Anderson 1965-5-1 3557 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC70321  Viola ocellata M. A. Baker 1980-6-7 1872 Humboldt Near Ammon Creek 732 Comment
  UC1198431  Viola ocellata Joseph P. Tracy 1948-5-31 18007 Humboldt Harris 762 Comment
  UC1198453  Viola ocellata Joseph P. Tracy 1913-6-22 4266 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges, in Valley of Van Duzen River 762 Comment
  HSC34874  Viola ocellata Thomas W. Nelson, James Nelson 1975-5-5 1779 Humboldt Beside Hwy. 101, ~ 4 mi. S of the Salmon Creek Bridge Comment
  JEPS50445  Viola ocellata Lincoln Constance 1934-5-23 600 Humboldt se slope of mountain above Lookout Prairie; Bull Creek Region, South Fork Eel River 365 Comment
  UC164811  Viola ocellata Joseph P. Tracy 1908-6-27 2685 Humboldt near head of Little Laribee Creek; Northern Coast Ranges 914 Comment
  UC1222513  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1951-5-20 19403 Humboldt near Kneeland School House Comment
  CHSC68507  Viola sempervirens Vernon H. Oswald 1997-4-10 8326 Humboldt Elk Head, north end of Trinidad State Beach. Alonf the trail between the parking area and the bluffs overlooking the ocean. 30 Comment
  HSC34643  Viola sempervirens Thomas Anthony 1975-4-8 4 Humboldt E of HSU tennis courts on ridge facing Fern Lake from W Comment
  UC164816  Viola sempervirens Joseph P. Tracy 1901-1-1 978 Humboldt immediate vicintiy of Eureka 0 Comment
  HSC36516  Viola sempervirens A. M. Montalvo, J. D. Ackerman 1973-4-29 52 Humboldt 3 mi. NE of Kneeland on road to Maple Creek 457 Comment
  HSC59449  Viola sempervirens Kenneth Clark 1979-3-31 2 Humboldt 0.7 mi. E of the end of Granite Ave., Arcata 46 Comment
  HSC95748  Viola sempervirens Kevin Thomas 2004-3-13 2 Humboldt Arcata Community Forest, Jolly Giant Creek diversion dam Comment
  SEINET11994159  Viola sempervirens N. H. Russell 1967-1 67 -12 Humboldt James Irvine grove of redwoods, US 101, N of Orick Comment
  UC212888  Vulpia bromoides Joseph P. Tracy 1919-4-27 5132 Humboldt Humboldt Bay Northern Coast Region (Ocean Beach) Comment
  HSC9914  Vulpia microstachys C. S. Chavez 1965-5-1 64 Humboldt On Hwy. 299 2 mi. E of Willow Creek. Comment
  UC187308  Vulpia microstachys var. microstachys Joseph P. Tracy 1902-6-3 1672 Humboldt near Fruitland Comment
  UCD94574  Vulpia microstachys var. pauciflora A. H. Murphy 1951-6-1 55 Humboldt about 2 miles east of Low Gap, on the Mad River drainage. Comment
  HSC70350  Vulpia myuros M. A. Baker 1980-6-7 1810 Humboldt Near Brush Mtn. 1128 Comment
  RSA10060  Vulpia myuros var. hirsuta Joseph P. Tracy 1925-5-17 6968 Humboldt Trinity River Valley, near the South Fork. 183 Comment
  CAS-BOT-BC185938  Vulpia octoflora var. octoflora Joseph P. Tracy 1929-7-4 8618 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC128816  Whipplea modesta Doris K. Kildale 1928-5-19 5187 Humboldt Chalk Mountain Comment
  CAS-BOT-BC128817  Whipplea modesta Doris K. Kildale 1928-7-24 5267 Humboldt Redwood Creek at Berry's 289 Comment
  OBI36661  Whipplea modesta David J. Keil 1983-7-2 17322 Humboldt Ca. 4 mi SE of SR 299 along Titlow Hill rd below Horse Mtn Summit Rd Comment
  UC1198903  Whipplea modesta Joseph P. Tracy 1942-5-16 17347 Humboldt 1 mi s Garberville (along river) 152 Comment
  HSC79383  Wyethia angustifolia Kenneth Clark 1981-5-24 1393 Humboldt Abalone Pt. 15 Comment
  JEPS28953  Wyethia glabra D. E. Breedlove 1961-7-4 654 Humboldt 13.7 mi w Willow Creek (U.S. Highway 299) 731 Comment
  CAS-BOT-BC326980  Wyethia longicaulis Doris K. Kildale 1926-6-9 2148 Humboldt Horse Mountain 1219 Comment
  JEPS32115  Wyethia longicaulis Jos. P. Tracy 1923-6-21 4254 Humboldt near summit of ridge between Van Duzen and Mad Rivers (Dinsmore Ranch) 1066 Comment
  HSC25958  Xanthium strumarium Thomas W. Nelson 1970-10-31 286 Humboldt Eel River near N end of the Scotia Bluff. Comment
  HSC100567  Xerophyllum tenax Carl C. Marshall Jun 1885 82 Humboldt Ridge between Redwood and N Fork. Comment
  HSC36103  Zantedeschia aethiopica Jim Pollard 1973-11-28 32 Humboldt Near Westwood Village Apartments Comment
  HSC15777  Zigadenus fremontii J. Wendell Howe 1930-3-30 78 Humboldt Diamond Canyon, presumed Humboldt Co. but not stated Comment
  CAS-BOT-BC532733  Zigadenus micranthus Doris Kildale Gillespie 1931-6-7 10646 Humboldt South Fork Mt. Blake Lookout 1726 Comment
  UC302170  Zigadenus micranthus var. micranthus Joseph P. Tracy 1925-5-30 7041 Humboldt at summit leading to Laribee Valley; Northern Coast Ranges, McClellan Mountain 822 Comment



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