Search Results — 2000 specimen records retrieved (1337 records with coordinates)
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Results for search: County=HUMBOLDT; Source=All;   

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

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC77963  Abies concolor Henry M. Pollard 1944-9-1 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC54223  Abies concolor Griswold, Butler 1979-7-12 7288 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  HSC55196  Abies concolor G. L. Clifton, Griswold 1979-8-2 12292 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  CAS-BOT-BC78058  Abies grandis Doris K. Kildale 1926-11-27 2841 Humboldt Alton Hill gulch between Alton + Rohnerville 152 Comment
  JEPS47985  Abies grandis W. L. Jepson 1921-9-10 9457 Humboldt Bull Creek flat South Fork of Eel River, Bull Creek flat 60 Comment
  UCD134238  Abies grandis T. I. Storer 1931-7-1 2225 Humboldt Coast. Comment
  HSC73071  Abies procera M. A. Baker 1980-7-22 3063 Humboldt Near Salmon Mtn. 1820 Comment
  CAS-BOT-BC383848  Abronia latifolia W. R. Dudley 1899-6-1 s.n. Humboldt Samoa Comment
  SBBG69879  Abronia latifolia R. Hartwell 1938-8-4 Humboldt near Capetown Comment
  HSC16134  Abronia latifolia D. E. Anderson 1961-9-22 1828 Humboldt Comment
  CAS-BOT-BC330549  Acer circinatum Harley P. Chandler 1901-6-1 1283 Humboldt North Coast Ranges. Hupa Indian Reservation 1097 Comment
  SEINET200861 Image available Acer glabrum Joseph P. Tracy 1933-7-11 12707 Humboldt North Coast Ranges, Grouse Mountain 1520 Comment
  HSC2807  Acer macrophyllum Jack Rockwell 1962-4-29 44 Humboldt E bank of Redwood Creek, near Hwy. 299 549 Comment
  HSC98356  Acer macrophyllum T. Jimerson, J. Pageau 1979-7-31 706 Humboldt Near Whiting Ridge. Close to town of Hyampom 1204 Comment
  SEINET8734158 Image available Achillea borealis subsp. californica H. E. Parks, S. T. Parks 1943-1 24246 Humboldt Egg Point, Trinidad 122 Comment
  HSC32009  Achillea millefolium J. D. Ackerman 1974-5-26 269 Humboldt 1 mi. S of Trinidad on Scenic Dr. Comment
  HSC4569  Achillea millefolium Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  HSC73648  Achillea millefolium M. A. Baker 1980-7-22 3117 Humboldt Near Grogan Hole. 1676 Comment
  UC1222922  Achillea millefolium Joseph P. Tracy 1950-5-30 18712 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  UC9738  Achlys californica Harley P. Chandler June, 1901 1293 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 182 Comment
  HSC31126  Achlys triphylla J. O. Sawyer 1970-6-24 2261 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  HSC56446  Achlys triphylla Griswold, Butler 1979-7-12 7196 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  RSA12436  Achlys triphylla C. B. Wolf 1934-7-2 5857 Humboldt 2 miles from Bald Mt. on road to Korbel. 762 Comment
  SEINET5585535 Image available Achnatherum lemmonii Joseph P. Tracy 1938-1 15968 Humboldt Panther Gap, on the road from Bull Creek to upper Mattole 823 Comment
  UC1565800  Achnatherum lemmonii R. Spellenberg 1990-7-10 10248 Humboldt 6 mi s on USFS 1 Berry Summit (on Calif. Hwy. 299) (8 mi wsw of Salyer) 1371 Comment
  UC212861  Achnatherum occidentale subsp. californicum Joseph P. Tracy 1919-9-23 5285 Humboldt summit of ridge Northern Coast Ranges, Trinity Summit 1828 Comment
  HSC35817  Acmispon denticulatus Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-6-20 1919 Humboldt Above Goat Rock, 2 mi. W of Bridgeville Comment
  HSC40403  Acmispon micranthus Linda M. Barker 1976-5-13 1493 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  HSC44755  Acmispon micranthus Maralyn O'Meara 1972-6-8 84 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  HSC98302  Acmispon micranthus Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  UC1196181  Aconitum columbianum Joseph P. Tracy 1934-7-18 13458 Humboldt Grouse Mt. North Coast Ranges, Grouse Mt. 1524 Comment
  UC1222584  Aconitum columbianum Joseph P. Tracy 1950-7-31 19242 Humboldt n.e. side of top Grouse Mt. 1524 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
  HSC82405  Aconogonon davisiae Thomas W. Nelson 1979-7-11 5021 Humboldt N Trinity Mtn. and ridge to E, SE of Water Dog Lake 1829 Comment
  HSC97952  Adenocaulon bicolor Cara Witte 2007-6-21 326 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1430 Comment
  UC1239770  Adiantum X tracyi J. P. Tracy 1895-1 1683 Humboldt cultivated in Eureka (obtained above Pepperwood on Eel River) Comment
  POM118378  Adiantum aleuticum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  HSC79503  Adiantum aleuticum Kenneth Clark 1980-6-14 691 Humboldt Shelter Cove, N fork of Dead Man's Gulch 84 Comment
  JEPS36371  Agoseris apargioides William S. Cooper 1925-7-29 114 Humboldt Samoa Comment
  UCD128632  Agoseris apargioides Linda M. Barker 1976-7-5 1643 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  HSC74690  Agoseris grandiflora Gail Newton 1981-8-7 2464 Humboldt Near Board Camp Mtn. 1478 Comment
  CAS-BOT-BC29626  Agoseris grandiflora var. grandiflora LeRoy Abrams 1922-6-25 8237 Humboldt 2 mi S of Fortuna Comment
  UC1173669  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1939-8-5 16390 Humboldt (along Van Duzen River opposite Buck Mt.) Dinsmore's; Van Duzen River, Buck Mt. 762 Comment
  UC164792  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1911-7-7 3411 Humboldt along ridge n of, between Willow and Campbell Creeks Willow Creek; Brannan Mountain, , Campbell Creek 1219 Comment
  HSC39005  Agoseris heterophylla Thomas W. Nelson, Jane P. Nelson 1976-5-31 2649 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  UC1239512  Agoseris hirsuta Joseph P. Tracy 1936-6-9 14885 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 457 Comment
  UC249886  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6283 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 304 Comment
  POM126129  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6283 Humboldt Bear Ridge Ridge 305 Comment
  UC449621  Agoseris retrorsa Joseph P. Tracy 1912-7-31 3947 Humboldt near summit Buck Mountain; Northern Coast Ranges 1676 Comment
  UC187290  Agrostis J. P. Tracy 1900-8-26 926 Humboldt immediate vicinity of Eureka 0 Comment
  RSA249712  Agrostis capillaris R. F. Thorne, P. Everett 1965-8-8 35247 Humboldt N edge of Eureka, E of Hwy in weedy land-fill 5 Comment
  RSA22705  Agrostis densiflora H. E. Parks 1935-06 5607 Humboldt Spruce Cove, Trinidad. Comment
  CAS-BOT-BC127281  Agrostis exarata Joseph P. Tracy 1927-7-17 8285 Humboldt Northern Coast Ranges. Three Cabins. Chaparral Mountain. 457 Comment
  HSC98576  Agrostis exarata Cara Witte 2007-7-20 556 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  UC1103380  Agrostis exarata Joseph P. Tracy 1935-7-27 14282 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1145056  Agrostis exarata Joseph P. Tracy 1947-6-28 17749 Humboldt Larrabee Valley 731 Comment
  UC1145062  Agrostis exarata Joseph P. Tracy 1936-6-10 14917 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC184150  Agrostis exarata Joseph P. Tracy 1912-7-21 3785 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UCSB51224  Agrostis exarata Almanza, Ed 1976-7-15 Humboldt Big Lagoon Campground, Big Lagoon Comment
  CAS-BOT-BC139695  Agrostis gigantea J. P. Tracy 1902-7-4 1758 Humboldt Immediate vicinity of Eureka. 152 Comment
  HSC64165  Agrostis hallii J. O. Sawyer, K. A. Sawyer 1979-6-24 3409 Humboldt Slopes alongside Aikens Creek. 366 Comment
  RSA10019  Agrostis idahoensis Joseph P. Tracy 1932-7-16 10608 Humboldt Klamath Mtns., Trinity Summit, Corral Prairie 1524 Comment
  HSC102086  Agrostis oregonensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 990 Humboldt Patterson Meadows 1555 Comment
  UC526875  Agrostis oregonensis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8995 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain (wet meadow) 1676 Comment
  RSA10063  Agrostis pallens Joseph P. Tracy 1932-7-17 10661 Humboldt Trinity summit. Corral Prairie 1524 Comment
  BLMAR22  Agrostis stolonifera Brad Barr June, 1982 22 Humboldt King range, Spanish ridge Comment
  UC1103371  Agrostis viridis Joseph P. Tracy 1911-7-9 3460 Humboldt wet places along Willow Creek (creek is tributary of Trinity River); Northern Coast Ranges 243 Comment
  UC726346  Aira caryophyllea A. A. Heller 1923-7-8 13765 Humboldt 10 mi s Dyerville; Humboldt Camp Comment
  CAS-BOT-BC138328  Aira caryophyllea var. caryophyllea Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  CAS-BOT-BC138336  Aira caryophyllea var. caryophyllea Ira L. Wiggins 1932-6-18 5874 Humboldt Hillside at mouth of Little River. Comment
  RSA205970  Aira praecox Joseph P. Tracy 1900-6-5 849 Humboldt Immediate vicinity of Eureka. 0 Comment
  UC1198269  Alisma plantago-aquatica Joseph P. Tracy 1930-10-12 9214 Humboldt Alton to Fortuna (on gravel bars); Eel River 15 Comment
  UC194898  Alisma plantago-aquatica Joseph P. Tracy 1916-6-19 4724 Humboldt Dobbyn Creek Northern Coast Ranges 182 Comment
  CAS-BOT-BC460748  Allium amplectens C. C. Harris; S. K. Harris 1936-6-24 645 Humboldt At point where the road from Bridgeville to Dinsmore crosses the Little Van Duzen River. 701 Comment
  UC1198198  Allium bolanderi Joseph P. Tracy 1936-6-10 14923 Humboldt mountain slopes w mouth of South Fork of Trinity River; South Fork of Trinity River 304 Comment
  UC666927  Allium campanulatum Joseph P. Tracy 1933-7-25 12863 Humboldt Grouse Mountain 1524 Comment
  HSC82040  Allium falcifolium Thomas W. Nelson, James Nelson 1980-6-10 5407 Humboldt Along Swayback Ridge 4-wheel drive rd. 2.5 mi. N of the junction with USFS rd. 1S07 1463 Comment
  JEPS56397  Allium unifolium Joseph P. Tracy 1917-6-17 4078 Humboldt bluff at Bucksport Northern Coast Ranges, Eureka, Bucksport 0 Comment
  SEINET12053631  Allium unifolium J. P. Tracy 1950-1 18890 Humboldt Burr Valley Comment
  HSC57903  Allium validum Gilbert Muth 1979-7-31 11499 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  HSC99641  Allium validum T. Jimerson, J. Pageau 1979-8-10 736 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  HSC42107  Allium validum Thomas W. Nelson, Jane P. Nelson 1977-8-6 3704 Humboldt Along S side of Lassic Peak 1463 Comment
  HSC100400  Allocarya californica Carl C. Marshall 463 Humboldt Road between Harris and Garberville. Comment
  CAS-BOT-BC171311  Alnus incana subsp. tenuifolia Milo S. Baker 1927-8-21 2487 a Humboldt Brush Mt. 914 Comment
  CAS-BOT-BC170945  Alnus rhombifolia Doris K. Kildale 1926-12-13 1428 Humboldt Bridgeville on Van Duzen River 228 Comment
  UC162707  Alnus rhombifolia Joseph P. Tracy 1911-7-4 3296 Humboldt Willow Creek Northern Coast Ranges (near mouth (creek is a tributary of Trinity River)) 182 Comment
  SEINET12027585  Alnus rhombifolia J. P. Tracy 1950-1 19375 Humboldt Klamath River, near Slate Creek, below Orleans 8 mi 122 Comment
  RSA778734  Alnus rubra Lyman Benson 1928-7-10 430 Humboldt Clam Beach, Trinidad. 12 Comment
  SFV18531  Alnus rubra D. Waller 2002-5-7 71 Humboldt Arcata. Intersection of L. K. Wood and Redwood Ct. 61 Comment
  UC1197948  Alnus rubra Joseph P. Tracy 1924-8-17 6823 Humboldt Trinidad Northern Coast Ranges 60 Comment
  UC503098  Alnus rubra Joseph P. Tracy 1930-7-27 9113 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  RSA152528  Alopecurus geniculatus Joseph P. Tracy 1917-6-17 4816 Humboldt Salmon Creek Valley, at south end of Humboldt Bay. 15 Comment
  UC1118432  Ambrosia chamissonis G. T. Nordstrom 1937-7-1 1445 Humboldt 1.6 mi w Orick; Orick Quad. 0 Comment
  UCR122369  Ambrosia chamissonis George K. Helmkamp, E. A. Helmkamp 2001-7-8 7020 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  HSC93517  Ambrosia chamissonis Gordon Leppig 1998-5-25 786 Humboldt Big Lagoon State Park. 2 Comment
  CAS-BOT-BC142890  Amelanchier alnifolia var. semiintegrifolia Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC18529  Amelanchier alnifolia var. semiintegrifolia F. B. Plett 1963-4-9 16 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  HSC76240  Amelanchier alnifolia var. semiintegrifolia Denis Kearns 1981-6-24 23 Humboldt Near Cedar Camp 1219 Comment
  RSA47088  Amelanchier pallida Doris K. Kildale 1926-6-27 2225 Humboldt Little Van Duyen River on bridge on Bridgeville Red Bluff road 640 Comment
  UC1198747  Amelanchier utahensis Joseph P. Tracy 1947-8-24 17900 Humboldt at edges Box Camp Meadow (near Box Camp); Trinity Summit 1463 Comment
  UC183554  Amelanchier utahensis Joseph P. Tracy 1913-6-17 4188 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  HSC8842  Ammophila arenaria Paul Shields Apr 1955 Humboldt 5 mi. SW Arcata Comment
  SEINET3917968  Ammophila arenaria J. P. Smith, Thomas W. Nelson 1977-6-30 9201 Humboldt Samoa Peninsula just east of the drag strip.; 0 Comment
  HSC3536  Amsinckia douglasiana J. Wendell Howe 1214 Humboldt Comment
Read comments
Feb 11 2018
  UC1198611  Anagallis arvensis Joseph P. Tracy 1921-7-10 5850 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  HSC68320  Anagallis arvensis J. P. Smith 1973-5-26 6817 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  CHSC27929  Anaphalis margaritacea M. S. Taylor 1975-4-12 466 Humboldt Ca. 2000 yds E of Hwy 101, in Orick, by RR tracks. Comment
  HSC67040  Anaphalis margaritacea J. P. Smith 1971-10-9 5043 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  UC175184  Anaphalis margaritacea Joseph P. Tracy 1913-9-9 4400 Humboldt Big Lagoon; Northern Coast Ranges 30 Comment
  SEINET2031091 Image available Anaphalis margaritacea Joseph P. Tracy 5244 Humboldt Trinity Summit. Corral meadow 1520 Comment
  UC162853  Anemone deltoidea Joseph P. Tracy 1906-5-6 2444 Humboldt near Hydesville; North Coast Ranges 182 Comment
  HSC18007  Anemone deltoidea J. F. Knezevich 1968-5-13 427 Humboldt Near Arcata above Freshwater Forest Comment
  SJSU874  Anemone deltoidea A. C. Browne Sr. 1945-5-23 Humboldt Myers Flat Comment
  UC503044  Anemone oregana Joseph P. Tracy 1927-6-12 8130 Humboldt Horse Mtn North Coast Ranges (in serpentine belt) 1524 Comment
  UC1197383  Angelica genuflexa Joseph P. Tracy 1937-7-17 15442 Humboldt 2 mi s of Fields Landing (near Still Ranch); Northern Coast Region 6 Comment
  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
  JEPS14107  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  HSC71403  Angelica hendersonii J. M. DiTomaso 1980-8-1 1817 Humboldt Table Bluff, S of Eureka, 100m from ocean Comment
  SEINET12117363  Angelica hendersonii J. P. Tracy 1950-1 19352 Humboldt Bear River Ridge 610 Comment
  UC154048  Angelica lucida Joseph P. Tracy 1909-9-19 3087 Humboldt Region about Humboldt Bay (near Samoa, Northern Coast Region); Northern Coast Region 0 Comment
  HSC56203  Angelica tomentosa G. L. Clifton, Terry Griswold 1979-8-2 12194 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC642244  Angelica tomentosa Joseph P. Tracy 1938-9-5 16145 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  HSC76418  Anisocarpus madioides Denis Kearns 1981-7-8 161 Humboldt Near Bluff Creek 622 Comment
  CAS-BOT-BC271490  Anisocarpus madioides Doris K. Kildale 1927-4-30 1912 Humboldt Fruitland Hill, Ham's Road Comment
  HSC82122  Antennaria microphylla Thomas W. Nelson 1979-7-11 4998 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC1199432  Antennaria suffrutescens Joseph P. Tracy 1934-6-14 13216 Humboldt Horse Mountain 1432 Comment
  BLMAR50  Anthoxanthum odoratum Brad Barr June, 1982 50 Humboldt King range, ridgetop of Johnny Jack ridge Comment
  CAS-BOT-BC137737  Anthoxanthum odoratum Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  UC1198740  Aphanes occidentalis Joseph P. Tracy 1918-4-12 4876 Humboldt near Fish's Mill Creek (Dows Prairie); Northern Coast Ranges 30 Comment
  POM287860  Apocynum androsaemifolium subsp. pumilum Lyman Benson 1929-7-14 s.n. Humboldt S. Fork Eel River Weott Ranger Station Comment
  UC176867  Apocynum cannabinum Joseph P. Tracy 1912-7-26 3838 Humboldt Kneeland Prairie North Coast Ranges, Kneeland Prairie 762 Comment
  UC34969  Apocynum cannabinum Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  RSA46787  Aquilegia formosa Doris Kildale Gillespie 1937-8-12 15265 Humboldt South Fork Mountain. Comment
  HSC18037  Aquilegia formosa var. formosa F. B. Plett 1963-5-11 45 Humboldt 1.5 mi. N of Trinidad on old Hwy. 101 Comment
  UC552301  Arabidopsis thaliana Joseph P. Tracy 1935-4-20 13788 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC54209  Arabis glabra Griswold, Butler 1979-7-12 7253 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC74294  Arabis glabra M. A. Baker 1980-7-22 3099 Humboldt Near Grogan Hole. 1676 Comment
  UC492235  Arabis glabra Joseph P. Tracy 1932-7-11 10423 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  RSA32651  Arbutus menziesii Doris K. Kildale 1927-5-7 3109 Humboldt Elk Ridge near Blacksburg. Comment
  JEPS44155  Arctium minus W. L. Jepson 1921-9-10 9459 Humboldt flat at Philipsville; flat at Philipsville Comment
  UC585902  Arctostaphylos Joseph P. Tracy 1931-3-1 9283 Humboldt Miranda South Fork of Eel River 121 Comment
  UC585944  Arctostaphylos Joseph P. Tracy 1934-3-11 13158 Humboldt French Camp Ridge 1066 Comment
  BLMAR276  Arctostaphylos canescens Jennifer Anthony-Wheeler 1999-7-30 276 Humboldt Lacks Creek 1219 Comment
  CAS-BOT-BC24092  Arctostaphylos canescens subsp. canescens L. R. Abrams 1918-6-15 7112 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  BLMAR53  Arctostaphylos columbiana Jennifer Anthony-Wheeler 1994-2-14 53 Humboldt King range, growing along KR rd approx 2mi from rd end 228 Comment
  CAS-BOT-BC23726  Arctostaphylos columbiana Joseph P. Tracy 1933-6-13 12582 Humboldt Hoopa Mountain. Near summit on road from Hoopa westward to Bair's. Summit of barren ridge 1 mile S. of road. 1219 Comment
  CAS-BOT-BC23759  Arctostaphylos columbiana Alice Eastwood 1907-4-22 41 Humboldt Near Trinidad Comment
  CAS-BOT-BC23789  Arctostaphylos columbiana Walter Knight 1965-8-4 1157 Humboldt Shelter Cove - Thorn Jct. - approx. 4 mi. S of Mendocino-Humboldt Co. line. 365 Comment
  CAS-BOT-BC23793  Arctostaphylos columbiana C. Hart Merriam 1920-9-18 s.n. Humboldt Berry Mt. between Trinity River and Redwood Creek Comment
  CAS-BOT-BC23811  Arctostaphylos columbiana C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. between Shelter Cove and Kenny, near Humboldt - Mendocino county line. Comment
  JEPS38618  Arctostaphylos columbiana W. L. Jepson 1902-6-29 1953 Humboldt Redwood Creek Comment
  JEPS38969  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15171 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  RSA622698  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27681 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  UC314644  Arctostaphylos columbiana Joseph P. Tracy 1924-3-9 6606 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC924266  Arctostaphylos columbiana H. S. Reed 1941-7-27 Humboldt coastal bluffs Orick Comment
  UCD50772  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1170 Humboldt 21.4 miles east of U.S. Highway 101 on Bald Hills Road from Orick, French Camp Ridge. Comment
  RSA13418  Arctostaphylos columbiana var. tracyi H. E. Parks 1931-3-25 917 Humboldt Near Patrick's point. Comment
  SD42559  Arctostaphylos hispidula Carl B. Wolf 1937-8-13 9226 Humboldt 8.0 miles east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  HSC37829  Arctostaphylos manzanita Thomas W. Nelson, Jane P. Nelson 1976-2-21 2249 Humboldt Tish-Tang Campground Comment
  HSC71673  Arctostaphylos manzanita M. A. Baker 1980-6-26 2386 Humboldt Near Sims Creek 610 Comment
  CAS-BOT-BC24327  Arctostaphylos manzanita subsp. manzanita H. E. McMinn 1922-7-1 327 Humboldt 2 mi. from ranger station at bridge on road to Red Bluff from Eureka. Comment
  CAS-BOT-BC38833  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1930-5-12 9561 Humboldt McClellan Hill near Bridgeville 609 Comment
  HSC48822  Arctostaphylos nevadensis Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 33 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  HSC68139  Arctostaphylos nevadensis J. P. Smith, J. O. Sawyer 1973-5-12 6689 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  UC585956  Arctostaphylos nevadensis Joseph P. Tracy 1935-7-30 14380 Humboldt Salmon Summit 2103 Comment
  HSC63208  Arctostaphylos patula M. A. Baker 1979-6-6 1010 Humboldt .6 k W of FS Rd. 15N01 on FS Rd. 12N16, towards Bald Mtn. Comment
  JEPS38941  Arctostaphylos patula Joseph P. Tracy 1927-6-12 8135 Humboldt Horse Mountain 1432 Comment
  UC585899  Arctostaphylos patula Joseph P. Tracy 1927-6-12 8135 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC46795  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17505 Humboldt Eureka 45 Comment
  UC1196867  Arctostaphylos uva-ursi Joseph P. Tracy 1947-8-31 17928 Humboldt near Samoa; Humboldt Bay 6 Comment
  UCD52029  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17500 Humboldt 45 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
  RSA89766  Arctostaphylos uva-ursi var. coactilis P. A. Munz 1954-7-25 19876 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. 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
  UC161045  Arenaria serpyllifolia subsp. serpyllifolia Joseph P. Tracy 1911-7-8 3450 Humboldt (Tributary of trinity river) near its mouth Northern Coast Ranges,Willow Creek 152 Comment
  HSC8975  Aristida oligantha J. P. Tracy 1933-8-27 13000 Humboldt Vicinity of Garberville, Robertson's Range 122 Comment
  UC1073398  Armeria maritima subsp. californica George B. Rossbach 1955-6-10 397 Humboldt point off Eureka (at Fairhaven); Fairhaven Comment
  RSA12448  Arnica discoidea C. B. Wolf 1934-7-1 5845 Humboldt 2.7 mi from Briceland on rd. to Shelter Cove. 91 Comment
  HSC32237  Arrhenatherum elatius J. O. Sawyer 1970-6-24 2232 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC8985  Arrhenatherum elatius True Hoyle 1967-7-24 29167 Humboldt Oscar Stapp Ranch near Showers Creek and Showers Pass 1006 Comment
  CAS-BOT-BC146269  Arrhenatherum elatius var. elatius Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  HSC38212  Artemisia douglasiana R. Sutherland 1976-8-19 17 .19876 Humboldt 482 Comment
  HSC12354  Artemisia pycnocephala Steve Dorei 1970-10-7 146 Humboldt McKinleyville Comment
  JEPS45625  Aruncus dioicus var. pubescens Joseph P. Tracy 1916-6-25 4749 Humboldt e of Trinidad (Redwood Creek); Northern Coast Ranges 152 Comment
  CAS-BOT-BC400534  Asarum caudatum Doris K. Kildale 1928-5-19 5183 Humboldt Chalk Mountain Comment
  CAS-BOT-BC400538  Asarum caudatum Alice Eastwood; John Thomas Howell 1937-6-23 4775 Humboldt Near Dinsmore's Comment
  HSC41318  Asarum caudatum Brad Klipfel 1974-9-2 533 Humboldt Horse Mtn. Comment
  SEINET3873461  Asarum caudatum Richard R. Halse 2011-3-25 8163 Humboldt Along U.S. Hwy 101 ca 2.8 miles south of Stafford, near Exit 674.; 0 74 Comment
  HSC98125  Asarum caudatum Cara Witte 2007-6-28 379 Humboldt FS Road 5N10. Approximately 0.5 mi E of intersection with National Forest 1. 1426 Comment
  RSA189626  Asarum caudatum Noel Holmgren, James L. Reveal 1966-6-8 2654 Humboldt Coast Range, east of Arcata, 1.5 miles south of Korbel. 274 Comment
  HSC56338  Asclepias speciosa Griswold, Butler 1979-7-10 6223 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  HSC73807  Aspidotis densa M. A. Baker 1980-6-16 1927 Humboldt Near Monks Camp. 1097 Comment
  RSA167195  Aster occidentalis Joseph P. Tracy 1941-8-24 17040 Humboldt South Fork Mountain. Near McKay camp. 1677 Comment
  HSC95164  Astragalus agnicidus Gordon Leppig 2003-7-10 2002 Humboldt Pacific Lumber Co. land 730 Comment
  HSC74723  Astragalus purshii Gail Newton 1981-7-23 2267 Humboldt Near Bug Creek Butte 1494 Comment
  UC1174493  Astragalus umbraticus Volney Rattan 1878-1 Humboldt Comment
  UC1199093  Astragalus umbraticus Joseph P. Tracy 1940-8-25 16706 Humboldt High Prairie on Bald Mountain Northern Coast Ranges, High Prairie on Bald Mountain 1066 Comment
  HSC57001  Asyneuma prenanthoides Overton, Butler 1979-7-24 9585 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  HSC76275  Asyneuma prenanthoides Teresa Prendusi 1981-7-9 169 Humboldt Near Cedar Camp. 1268 Comment
  CAS-BOT-BC69524  Athyrium filix-femina subsp. cyclosorum Ludwig A. Waitzinger 1925-8-3 s.n. Humboldt Martins Ferry. Comment
  RSA181910  Athyrium filix-femina subsp. cyclosorum W. L. Jepson 1932-8-8 16529 Humboldt Weott, hill above Comment
  HSC44042  Athyrium filix-femina var. cyclosorum Thomas W. Nelson, Jane Nelson 1977-9-3 3727 Humboldt Growing along Cr. draining N from pond above Alder Spring 1585 Comment
  UC503067  Athyrium filix-femina var. cyclosorum H. E. Parks and Joseph P. Tracy 1930-9-13 9180 Humboldt Jacoby Creek; Northern Coast Ranges 121 Comment
  HSC98599  Athysanus pusillus Cara Witte 2008-6-13 724 Humboldt Forest Service Road 4N32. 0.5 mi. N of intersection with Forest Service Road 4N32B. 1417 Comment
  HSC23467  Atriplex prostrata Wilbur Peterson 1971-11-1 407 Humboldt Salt Marsh of Humboldt Bay neat Jct. of G St. and Hwy. 101 in Arcata. Comment
  CAS-BOT-BC66230  Azolla filiculoides Robert F. Thorne; P. Everett 1965-8-9 35325 Humboldt Clam Beach County Park 3 Comment
  UCD136023  Azolla filiculoides Malcolm A. Nobs; S. Galen Smith 1949-8-9 1246 Humboldt Clam Beach. Comment
  UC1119655  Baccharis glutinosa H. L. Person 1932-7-18 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
  HSC78978  Baccharis pilularis subsp. consanguinea L. P. Janeway 1984-12-5 1192 Humboldt On the N Spit of Humboldt Bay; on the W side Samoa Rd. near the boat ramp 5 Comment
  UC184173  Barbarea orthoceras Joseph P. Tracy 1913-6-14 4119 Humboldt Dinsmore's Ranch; in Valley of Van Duzen River opposite Buck Mountain 762 Comment
  UC562693  Barbarea orthoceras Joseph P. Tracy 1935-7-25 14239 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  HSC89439  Barbarea verna P. A. Daly 1985-5-3 35 Humboldt Trinidad Head 61 Comment
  SEINET5707799 Image available Bellis perennis Suzanne E. May 1967-1 34 Humboldt On State Highway 36, 1 mile west of Bridgeville.; Bridgeville 183 Comment
  HSC53890  Bensoniella oregona Griswold, Butler 1979-7-11 6384 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC75815  Bensoniella oregona Bill Copeland 1980-7-2 314 Humboldt Near Snow Camp Mtn. 1311 Comment
  UC205467  Berberis aquifolium Joseph P. Tracy 1920-8-1 5347 Humboldt Lawrence Creek Kneeland Prairie 457 Comment
  UC9759  Berberis aquifolium Harley P. Chandler 1901-1 1277 Humboldt Hupa Indian Reservation 1097 Comment
  HSC31569  Berberis nervosa Glenn McGourty 1974-5-11 39 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  HSC76282  Berberis nervosa Teresa Prendusi 1981-7-9 188 Humboldt Near Cedar Camp. 1268 Comment
  UC1198383  Berberis nervosa J. P. Tracy 1903-8-9 1941 Humboldt vicinity of Eureka 0 Comment
  CAS-BOT-BC75799  Berberis pinnata Doris K. Kildale 1927-3-6 3001 Humboldt McDowell Butte. 914 Comment
  HSC35016  Berberis pinnata Thomas W. Nelson 1975-5-24 1880 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC102532  Bistorta bistortoides M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1518 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  UC936236  Boechera divaricarpa Harold E. Parks and Joseph P. Tracy 1949-6-25 11678 Humboldt Box Camp Trinity Summit 1463 Comment
  UC1222706  Boechera pauciflora Joseph P. Tracy 1950-8-8 19293 Humboldt head of Croghan Hole Trinity Summit, Croghan Hole Comment
  POM256476  Boisduvalia densiflora Joseph P. Tracy 1938-7-5 16003 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town. 46 Comment
  JEPS101806  Bolboschoenus maritimus subsp. paludosus Dean W. Taylor 1991-9-15 12290 Humboldt Big Lagoon, along Highway 101 near the mouth of Tom Creek. 3 Comment
  HSC102034  Botrychium multifidum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 937 Humboldt Patterson Meadows 1555 Comment
  HSC99840  Boykinia occidentalis C. B. Wolf 1927-8-30 1254 Humboldt 3 mi. S of Thorn along old coast road Comment
  POM232040  Boykinia occidentalis I. L. Wiggins 1930-7-22 4694 Humboldt Along bank of Redwood Creek btwn Blue Lake and Willow Creek. Comment
  CAS-BOT-BC420252  Boykinia occidentalis Kenneth Clark 1980-6-14 690 Humboldt Point Delgada quad. north fork Dead Man's Gulch 121 Comment
  HSC67082  Boykinia occidentalis Richard Spjut 1980-5-19 6198 Humboldt Between Willow Creek and Hoopa along Hwy. 96 Comment
  RSA12452  Boykinia occidentalis Carl B. Wolf 1934-6-30 5841 Humboldt 4 miles from Shelter Cove on rd to Briceland. 152 Comment
  UC11310  Boykinia occidentalis H. N. Bolander June 1867 6529 Humboldt Comment
  UCSB2543  Boykinia occidentalis Phillips, Priscilla 1958-6-10 Humboldt Bishop Pine Lodge, 2 mi. n. of Trinidad Comment
  HSC8596  Brassica rapa John A. Dubois 1962-5-23 30 Humboldt 15 mi. E of Arcata Comment
  RSA695640  Brickellia californica J. Russell Bruff 1937-8-17 932 Humboldt Richardson Grove, bed of Eel River. Comment
  HSC70984  Brickellia greenei Gail Newton 1980-7-22 1660 Humboldt Near Devils Backbone 1554 Comment
  HSC12346  Briza minor Steve Dorei 1970-10-31 137 Humboldt Scotia Bluffs, N of railroad tracks Comment
  HSC84929  Briza minor R. N. Raynor 1935-6-7 Humboldt Ft. Seward Comment
  UCD57397  Briza minor A. H. Murphy 1951-4-18 14 Humboldt Tooby and Prior Ranch. 2 miles south of Blocksburg. Comment
  UC1197747  Brodiaea elegans subsp. elegans Joseph P. Tracy 1924-8-6 6780 Humboldt garden of Joseph P. Tracy, Eureka Comment
  UC1222693  Brodiaea elegans subsp. elegans Joseph P. Tracy 1950-6-23 18867 Humboldt 3 mi ne Alderpoint (at creek); Dobbyn Creek 213 Comment
  JEPS7624  Brodiaea stellaris Rimo Bacigalupi with L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-13 3406 Humboldt along state Hwy 36 5 mi e Bridgeville Comment
  SEINET202663  Brodiaea stellaris Milo S. Baker 1923-7-26 127 b Humboldt Above camp on south fork of Yager Creek. Comment
  RSA114096  Brodiaea stellaris Rimo C. Bacigalupi, Lincoln Constance 1951-6-13 3406 Humboldt Along State Highway 36, five miles east of Bridgeville. Comment
  JEPS513  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1927-6-8 8111 Humboldt Trinidad 3 Comment
  UC1197740  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1928-5-20 8441 Humboldt halfway between the ocean and Petrolia; Northern Coast Ranges, Mattole Valley 91 Comment
  UC37672  Bromus carinatus var. carinatus J. Burtt Davy 1899-7-30 6179 Humboldt opposite Eureka (North Coast Ranges); North Coast Ranges Comment
  HSC26297  Bromus carinatus var. marginatus T. O. Osborne 1970-9-16 43 Humboldt Blank Rock, 0.25 mi. W Trinidad Light. Comment
  UCD58496  Bromus carinatus var. marginatus A. H. Murphy 1951-6-25 77 Humboldt About 1 mile W of Board Camp Mtn. Ca. 16 miles NE of Bridgeville. Comment
  RSA34310  Bromus diandrus L. Larsen 1935-5-6 s.n. Humboldt [no additional locality data provided] Comment
  UCD58512  Bromus diandrus Linda M. Barker 1976-4-30 1403 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC90690  Bromus hordeaceus Gail Newton 1982-5-31 3554 Humboldt Elk River Wildlife Area, Eureka Comment
  UCD58817  Bromus hordeaceus A. H. Shunk 1923-7-12 s.n. Humboldt Briceland. Comment
  HSC74126  Bromus madritensis subsp. madritensis R. York 1980-5-23 628 Humboldt Near Buck Mtn. 1524 Comment
  HSC40577  Bromus orcuttianus Thomas W. Nelson, James Nelson 1976-7-28 3047 Humboldt W of Alder Springs along 2S08 1555 Comment
  HSC40688  Bromus tectorum Thomas W. Nelson, Jane P. Nelson 1976-6-22 2871 Humboldt On SW-facing slope at Goat Mtn. lookout 1666 Comment
  CAS-BOT-BC185518  Bromus vulgaris Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek near Orleans. Comment
  UCD60237  Bromus vulgaris P. B. Kennedy 1923-8-2 s.n. Humboldt Bluff Creek, to Arcata. Comment
  UC175208  Cacaliopsis nardosmia Joseph P. Tracy 1913-6-17 4186 Humboldt Buck Mountain, near the summit Buck Mountain 1676 Comment
  UC709461  Cakile maritima Joseph P. Tracy 1941-8-3 16979 Humboldt w foot of Table Bluff Table Bluff 3 Comment
  UCR39782  Calamagrostis foliosa Kenneth Clark 1980-5-10 641 Humboldt Point Delgada Q., Shelter Cove, coastal bluffs of Point Delgada 3 Comment
  CAS-BOT-BC185179  Calamagrostis nutkaensis Joseph P. Tracy 1925-7-5 7174 Humboldt Northern Coast Ranges. Bald Mountain. Near High Prairie. 1066 Comment
  HSC58124  Calocedrus decurrens G. L. Clifton, Griswold 1979-8-1 12108 Humboldt Near Horse Trail Ridge 1878 Comment
  HSC76318  Calocedrus decurrens Teresa Prendusi 1981-7-9 242 Humboldt Near Slate Creek Butte 1122 Comment
  UC180215  Calochortus amabilis Joseph P. Tracy 1914-5-14 4422 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  HSC15346  Calochortus tolmiei H. E. Parks, J. P. Tracy 1930-5-25 790 Humboldt Laribee Valley 762 Comment
  HSC73144  Calochortus tolmiei M. A. Baker 1980-5-18 1330 Humboldt Near Black Mtn. 792 Comment
  JEPS17829  Calochortus tolmiei Joseph P. Tracy 1917-5-30 4813 Humboldt w of Dows Prairie; Northern Coast Ranges 15 Comment
  JEPS38589  Calycadenia multiglandulosa W. L. Jepson 1902-7-4 1983 Humboldt Hupa Valley Comment
  JEPS39006  Calycadenia truncata J. P. Tracy 1911-7-5 3334 Humboldt Willow Creek Trinity River, Willow Creek 152 Comment
  RSA167249  Calycadenia truncata subsp. microcephala Joseph P. Tracy 1941-9-1 17009 Humboldt In slide rock along Trinity River near Don Juan Point 335 Comment
  HSC16565  Calypso bulbosa Eldrid H. Spinas 1948-6-16 70 Humboldt Horse Mtn. Comment
  HSC38744  Calypso bulbosa M. Mesler, K. Mesler, J. D. Ackerman 1976-4-25 752 Humboldt Hwy. 36, E of Bridgeville, near tip of ridge W of Dinsmore Comment
  HSC55179  Calyptridium monospermum Gilbert Muth 1979-8-1 12189 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  SEINET12343669  Calystegia occidentalis L. K. Henry 1971-7-6 Humboldt Along Rt 36, 2 mi E of Dinsmore, in Six Rivers National Forest Comment
  UC154167  Calystegia occidentalis subsp. occidentalis Harley P. Chandler June, 1901 1343 Humboldt Hupa Indian Reservation , Hupa Indian Reservation (North Coast Ranges) 152 Comment
  UC23151  Calystegia occidentalis subsp. occidentalis Harley P. Chandler June, 1901 1418 Humboldt Klamath River , Klamath River (North Coast Ranges) 304 Comment
  HSC98672  Calystegia occidentalis subsp. occidentalis Cara Witte 2008-7-10 868 Humboldt Along National Forest 1 on Kinsey Ridge. 1/4 mile from intersection with Forest Service Road 4N09. 1302 Comment
  HSC6361  Calystegia soldanella Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  HSC93522  Calystegia soldanella Gordon Leppig, Sylvia Leppig, Kai Neander 1998-5-6 747 Humboldt Dry Lagoon State Park, between ocean and Dry Lagoon 2 Comment
  RSA296783  Calystegia soldanella Clark L. Miller 1979-5-24 1 -149 Humboldt Sandy Dunes off Somoa Blvd. approx. a half mile from Coast Guard Station Gate. Comment
  UC1197877  Calystegia soldanella Joseph P. Tracy 1915-6-6 4650 Humboldt sandy beach near mouth Elk River (Eureka); Northern Coast Region, nr mouth Elk River, at Eureka 0 Comment
  SEINET3991740  Camassia quamash Unknown 1947-5-3 Humboldt Kneeland Praire Comment
  UC1046537  Camassia quamash R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3419 Humboldt Ridge between Mad River and Redwood Creek (Bald Mountain, at Snow Camp); Bald Mountain, Snow Camp 1432 Comment
  HSC25217  Camissonia cheiranthifolia Norman Dennis 1965-6-8 104 Humboldt Samoa Peninsula along the W side of Humboldt Bay Comment
  HSC16441  Camissonia cheiranthifolia J. W. Johnson 1961-5-13 1358 Humboldt Arcata, Christenson Farm, Samoa Peninsula Comment
  RSA697219  Camissonia cheiranthifolia subsp. cheiranthifolia George K. Helmkamp, E. A. Helmkamp 2001-7-8 7021 Humboldt North coast: Samoa Peninsula, 2.6 miles S of CA-255 bridge across Humboldt Bay. 15 Comment
  CAS-BOT-BC160242  Camissoniopsis cheiranthifolia subsp. cheiranthifolia W. R. Dudley 1899-6-1 s.n. Humboldt Eureka [Penninsula] Peninsula Comment
  RSA696536  Campanula prenanthoides J. R. Bruff 1937-8-17 941 Humboldt Richardson Grove. Comment
  UC602536  Campanula prenanthoides Joseph P. Tracy 1927-8-14 8330 Humboldt Big Lagoon 121 Comment
  JEPS11742  Campanula prenanthoides W. L. Jepson 1932-7-24 16383 Humboldt Fruitland Comment
  SEINET10873268  Campanula prenanthoides Goddard GODDARD 686 Humboldt Blocksburg. Comment
  UC1326258  Campanula prenanthoides Milo S. Baker 1947-8-8 11925 Humboldt just n Orick (about 10 mi along Rd from Hwy 101 towards Hoopa) 609 Comment
  HSC56968  Campanula scouleri Overton , Butler 1979-7-23 9497 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  SEINET10873297  Campanula scouleri Griswold 1979-7-11 GRISWOLD 6978 Humboldt NEAR SNOW CAMP, IAQUA BUTTES QUAD. CLOSE TO THE TOWN OF WILLOW CR. EVERGREEN CONIFER FOREST, LAKE SIDE 1393 Comment
  BLMAR593  Campanula scouleri Jennifer Wheeler 2010-7-23 593 Humboldt Lacks Creek, along Pine Ridge Road under shady Douglas-fir foreset 975 Comment
  SEINET10463763  Campanula scouleri Ira L. Wiggins 1930-7-22 Wiggins 4699 Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  UC1199214  Capsella bursa-pastoris Joseph P. Tracy 1935-4-20 13790 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  SDSU2482  Cardamine angulata Wayne A. Bemis 1964-5-8 289 Humboldt North Coast redwood rain forest. Freshwater Forest of Freshwater City. 94 Comment
  UC302121  Cardamine breweri Joseph P. Tracy 1926-5-22 7500 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  BLMAR76  Cardamine californica Jennifer Anthony-Wheeler 1994-6-2 76 Humboldt IAQUA, gwng up logging rd in conif forest 853 Comment
  CAS-BOT-BC37418  Cardamine californica LeRoy Ellsworth Detling 1935-4-20 1642 Humboldt Lansdale Redwood Grove. Comment
  CAS-BOT-BC37426  Cardamine californica Doris K. Kildale; L. B. Kildale 1930-5-11 9535 Humboldt Wiregrass Prairie - The Bald Hills. 792 Comment
  UC1199188  Cardamine californica Joseph P. Tracy 1918-4-21 4878 Humboldt on road to Kneeland Prairie (around Humboldt Bay); Northern Coast Ranges, around Humboldt Bay 152 Comment
  UC1199200  Cardamine californica Joseph P. Tracy 1924-2-24 6603 Humboldt near McKee's Mill (South Fork Eel River); Northern Coast Ranges, South Fork Eel River 60 Comment
Read comments
Jul 25 2012
  HSC104050  Cardamine nuttallii E. R. Fyer 2015-3-19 5 Humboldt Six Rivers National Forest; along the East Fork of Willow Creek, off Hwy. 299. 505 Comment
  HSC26336  Cardamine oligosperma Thomas W. Nelson 1971-3-30 361 Humboldt Beside Williams Creek near Ferndale Comment
  HSC78610  Cardamine oligosperma L. P. Janeway 1984-3-17 716 Humboldt N Spit of Humboldt Bay, W of Samoa Rd. near the boat launch ramp 5 Comment
  HSC89611  Cardamine oligosperma M. Roantree 1985-5-24 66 Humboldt E side of Trinidad Head Comment
  UC1199207  Cardamine oligosperma Joseph P. Tracy 1920-5-18 5328 Humboldt 5 mi from Dyerville (South Fork Eel River, Forest Lodge, along Eel River from South Fork to Scotia); Northern Coast Ranges, South Fork Eel River, Forest Lodge 60 Comment
  UC201615  Cardamine oligosperma Joseph P. Tracy 1918-5-5 4923 Humboldt sand dunes Ocean Beach (Humboldt Bay); Northern Coast Region, , Ocean Beach Comment
  RSA183498  Cardionema ramosissimum J. R. Woodside 1963-5-11 11 Humboldt 1.25 miles north of Fairhaven. Comment
  RSA286360  Cardionema ramosissimum R. F. Thorne 1974-7-29 45077 Humboldt Samoa Dunes. Comment
  CAS-BOT-BC18517  Carex abrupta Joseph Prince Tracy 1932-7-14 10548 Humboldt Trinity Summit. Corral Prairie. 1584 Comment
  UC562426  Carex amplifolia Joseph P. Tracy 1935-6-23 13986 Humboldt French Camp Ridge 1066 Comment
  UCD149856  Carex aquatilis var. dives H. McC.; William Anderson 1964-8-5 s.n. Humboldt Dry Lagoon. Comment
  CAS-BOT-BC18009  Carex arcta Joseph Prince Tracy 1934-7-13 13389 Humboldt Dow's Prairie. 60 Comment
  CHSC98385  Carex arcta Dean Wm. Taylor; Tom Engstrom 2006-8-3 19573 Humboldt Lake Prairie; marshy area between the dam and the county road. 1057 Comment
  HSC70163  Carex athrostachya Thomas W. Nelson 1978-7-3 4411 Humboldt Along road to Anderson's Ford, McKeown Ranch 823 Comment
  RSA364615  Carex barbarae Henry M. Pollard 1948-7-29 s.n. Humboldt At Woodson Mine, near Orleans. Comment
  HSC98962  Carex bolanderi Cara Witte 2008-7-16 913 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  HSC44058  Carex bolanderi Thomas W. Nelson, James Nelson 1976-7-28 3076 Humboldt Between Alder Springs and road to Pine Mtn. 1524 Comment
  UC1103102  Carex bolanderi Joseph P. Tracy 1926-6-6 7574 Humboldt Hoopa Mountain, near summit on road W from Hoopa to Bair's 1066 Comment
  UC194802  Carex bolanderi Joseph P. Tracy 1914-7-5 4549 Humboldt Bald Mountain, between High Prairie and Snow Camp 1066 Comment
  SEINET3899382  Carex buxbaumii Thomas Nelson, Jane P. Nelson 1978-7-2 4397 Humboldt Along road 2S08 near Pine Mountain.; 0 1463 Comment
  UC1115804  Carex canescens Joseph P. Tracy 1939-7-9 16318 Humboldt at Lake Prairie Bald Mountain, Lake Prairie 1066 Comment
  HSC76385  Carex concinnoides L. P. Janeway 1982-6-20 13 Humboldt NE facing slope near ridgetop 1 mi. SE of Horse Mtn. along FS 6N36 1384 Comment
  POM161061  Carex concinnoides Joseph P. Tracy 1926-6-6 7567 Humboldt Hoopa Mountain. On road west from Hoopa Valley. 915 Comment
  CAS-BOT-BC34379  Carex cusickii Joseph Prince Tracy 1938-7-6 16023 Humboldt Big Lagoon. 6 Comment
  POM313080  Carex cusickii Malcolm A. Nobs, S. Galen Smith 1949-8-3 1197 Humboldt Southern outskirts of Eureka Comment
  CAS-BOT-BC34981  Carex densa Joseph Prince Tracy 1927-5-30 8095 Humboldt Northern Coast Ranges.Garberville. 121 Comment
  JEPS80030  Carex densa Joseph P. Tracy 1936-6-17 14953 Humboldt lower foothills of nw slope of Buck Mountain Northern Coast Ranges, Buck Mountain 762 Comment
  UC1103109  Carex deweyana subsp. leptopoda Joseph P. Tracy 1936-6-21 14992 Humboldt Iaqua North Coast Ranges 609 Comment
  CAS-BOT-BC20076  Carex echinata Joseph Prince Tracy 1926-6-27 7666 Humboldt Northern Coast Ranges. Horse Mountain. 1463 Comment
  UC562272  Carex echinata Joseph P. Tracy 1933-7-25 12845 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  JEPS121644  Carex echinata Jennifer Buck, Danielle Roach 2009-8-20 Humboldt Doehop Fen, South Fork Mountain. Sloping fen on schist, NE aspect. Blake Mountain quadrangle. SFM04A Comment
  RSA246876  Carex echinata subsp. phyllomanica Robert F. Thorne, Percy C. Everett 1965-8-7 35188 Humboldt Big Lagoon. 2 Comment
  CHSC42988  Carex exsiccata L. P. Janeway 1987-7-30 2532 Humboldt At Dry Lagoon. Middle of lagoon. 3 Comment
  CHSC85994  Carex exsiccata L. P. Janeway 2003-7-30 7941 Humboldt High North Coast Ranges. Small pond, on map but un-named, on the southwest side of Titlow Hill Road 1.1 km south of Cold Spring. 1426 Comment
  RSA167284  Carex feta Joseph P. Tracy 1950-7-6 19010 Humboldt Buck Mountain: High meadow on west side, 3 miles south of Burr Valley, on the Albee Road. 1159 Comment
  SEINET7558590 Image available Carex feta Alice Eastwood, John Thomas Howell 1937-6-22 4743 Humboldt Near Blocksburg. Comment
  SEINET7708306 Image available Carex feta J. P. Tracy 1950-7-6 19010 Humboldt Albee Road; Buck Mountain, 3 mi S of Burr Valley Comment
  UC562647  Carex feta Joseph P. Tracy 1928-6-17 8451 Humboldt at Willow Creek Trinity River Valley 152 Comment
  UC1152058  Carex fracta Joseph P. Tracy 1949-8-26 18515 Humboldt 6 mi NE of Hawkins Bar (meadow at Fern Creek, Happy Camp Mountain); Trinity Summit Range 1219 Comment
  CAS-BOT-BC20872  Carex globosa Joseph Prince Tracy 1929-6-3 8605 Humboldt North Coast Ranges. Willow Creek Canyon. Mouth of East Fork. 487 Comment
  CAS-BOT-BC28419  Carex gracilior Joseph Prince Tracy 1935-6-8 13940 Humboldt At Eureka 60 Comment
  JEPS25963  Carex gynodynama Joseph P. Tracy 1927-5-8 7969 Humboldt Northern Coast Ranges. Phillipsville, facing South Fork of Eel River Comment
  UC562720  Carex hassei Joseph P. Tracy 1927-6-17 8170 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC48358  Carex hendersonii D. H. Norris May 1970 12460 Humboldt Fringes of Freshwater Lagoon, S of Orick Comment
  JEPS75426  Carex hendersonii W. L. Jepson 1932-8-2 16474 Humboldt Deer-foot Flat Dyerville, Bull Creek, Deer-foot Flat 88 Comment
  UC1103595  Carex hendersonii Joseph P. Tracy 1942-6-15 17143 Humboldt on the Briceland road Redwood Creek 121 Comment
  UC519695  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Bull Creek South Fork of the Eel River Comment
  UCD140376  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Bull Creek, at South Fork of the Eel River. Comment
  HSC98937  Carex interior Cara Witte 2008-7-30 971 Humboldt Forest Service Road 5N04. 1/4 mile east of intersection with Forest Service Road 4N70. 1583 Comment
  JEPS79847  Carex jonesii Joseph P. Tracy 1932-7-15 10573 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  HSC103361  Carex jonesii Thomas W. Nelson, Jane Nelson 1987-6-11 8597 Humboldt At trailhead and along trail to Grogans Hole 610 Comment
  UC562285  Carex laeviculmis Joseph P. Tracy 1932-7-16 10635 Humboldt Corral Prairie Trinity summit 1584 Comment
  CAS-BOT-BC31467  Carex leptopoda LeRoy Abrams 1922-6-25 8254 Humboldt In spruce forest N of Mad River near Arcata. Comment
  UC195926  Carex luzulina var. luzulina Joseph P. Tracy 1914-7-4 4543 Humboldt High Prairie on Bald Mountain Northern Coast Ranges 1066 Comment
  HSC102622  Carex microptera M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1609 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC249512  Carex multicaulis Joseph P. Tracy 1922-4-30 6006 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  SEINET4292202 Image available Carex multicostata Unknown 2003-1 7945 Humboldt High North Coast Ranges. At upper edge of Clear Lake, 2.9 km southeast of Titlow Hill. Grouse Mountain Quad. Comment
  UC562664  Carex multicostata Joseph P. Tracy 1935-5-25 13885 Humboldt Dobbyn Creek 152 Comment
  UC302097  Carex multicostata Joseph P. Tracy 1913-6-16 4145 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Van Duzen River Valley 762 Comment
  CAS-BOT-BC119718  Carex nervina Joseph Prince Tracy 1932-7-16 10627 Humboldt Trinity Summit, Fir woods near Corral Prairie. 1584 Comment
  CAS-BOT-BC119536  Carex nudata Joseph Prince Tracy 1935-6-22 13959 Humboldt Eel River, at mouth of Larrabee Creek. Comment
  JEPS80024  Carex nudata Joseph P. Tracy 1911-6-4 3221 Humboldt along Little River 5 mi from coast; Northern Coast Region, Little River 121 Comment
  UC1103621  Carex nudata Joseph P. Tracy 1933-5-18 12194 Humboldt 6 mi W of Blue Lake (Mad River) 15 Comment
  CHSC10107  Carex obnupta J. W. Johnson 1961-8-17 1055 Humboldt Hollow 10, W.M. Lanphere Farm, Samoa Peninsula. Comment
  UC1598395  Carex obnupta Joy Mastrogiuseppe, Tom Nelson 1986-7-22 4353 Humboldt Burr Creek Burr Valley Comment
  HSC37833  Carex obnupta Thomas W. Nelson 1976-3-4 2263 Humboldt Eureka, beside Buhne St. between S St. and Harrison Ave. Comment
  JEPS79831  Carex obnupta Joseph P. Tracy 1934-7-13 13381 Humboldt North Coast Ranges, Arcata Bottom Arcata Bottom; North Coast Ranges, Arcata Bottom 15 Comment
  UC201994  Carex pachystachya Joseph P. Tracy 1918-7-5 5017 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  CAS-BOT-BC118599  Carex praticola Joseph Prince Tracy 1936-5-29 14826 Humboldt Gans Prairie, on ridge E of Orick, in grassy flat. 548 Comment
  JEPS79859  Carex rossii Joseph P. Tracy 1935-6-2 13921 Humboldt Big Lagoon 3 Comment
  UC249559  Carex saliniformis Joseph P. Tracy 1921-8-7 5863 Humboldt Stone Lagoon Northern Coast Region 3 Comment
  SEINET4290249 Image available Carex subbracteata Unknown 2009-1 24494 Humboldt Outer North Coast Range (NCoRo), between Lord-Ellis and Berry summits. Above Route 299, 2.3 road miles W of junction with Chezen road. Comment
  UC562635  Carex subbracteata Joseph P. Tracy 1936-6-9 14904 1/2 Humboldt Upper Mattole 121 Comment
  HSC44120  Carex subfusca Thomas W. Nelson, Jane P. Nelson 1976-6-15 2735 Humboldt Just W of Goat Hill along road off FS 2S08 1463 Comment
  CAS-BOT-BC115575  Carex tumulicola Joseph Prince Tracy 1939-4-29 16254 Humboldt Orleans. 121 Comment
  CHSC90267  Carex utriculata Thomas W. Nelson; Jane P. Nelson 1987-6-11 8600 Humboldt North Coast Ranges. Box Spring at Box Camp. Along trail to North Trinity Mountain. 1524 Comment
  UC562326  Carex vesicaria var. major Joseph P. Tracy 1927-7-17 8277 Humboldt lower w foothills Chaparral Mountain (Three Cabins); North Coast Ranges 457 Comment
  CAS-BOT-BC114983  Carex viridula Robert F. Thorne; P. Everett 1965-8-7 35198 Humboldt Big Lagoon at edge of bog at S end of Lagoon. 1 Comment
  HSC96343  Carex viridula subsp. viridula Gordon Leppig 1999-10-3 1258 Humboldt Big Lagoon Bog, Big Lagoon County Park, N end of fen 3 Comment
  HSC96540  Carex viridula subsp. viridula Gordon Leppig 1997-6-19 447 Humboldt Big Lagoon County Park, Big Lagoon Bog, N section 3 Comment
  UC665690  Carex viridula var. viridula H. E. Parks September 1935 5214 Humboldt s Orick (in center of Dry Lagoon) 0 Comment
  RSA246760  Carpobrotus chilensis R. F. Thorne, P. Everett 1965-8-9 35306 Humboldt Big Lagoon 3 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
  SEINET12027436  Castanopsis chrysophylla J. P. Tracy 1950-1 19239 Humboldt Grouse Mtn 1524 Comment
  CAS-BOT-BC249130  Castilleja affinis Doris K. Kildale 1927-6-26 3597 Humboldt Patrick's [Patricks] Point Comment
  HSC99012  Castilleja affinis subsp. affinis C. Witte 2007-5-10 19 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1368 Comment
  HSC26884  Castilleja affinis subsp. litoralis Clifton Raymond Chesbrough 1973-6-19 102 Humboldt .5 mi. N of College Cove along the coast Comment
  HSC30755  Castilleja affinis subsp. litoralis Thomas W. Nelson 1974-4-20 1180 Humboldt Elk Head, N of Trinidad Comment
  JEPS88811  Castilleja affinis subsp. litoralis T. I. and F. M. Chuang 1991-7-8 7874 Humboldt ca 2 mi sw Orick Comment
  HSC104042  Castilleja ambigua subsp. humboldtiensis C. Reynolds 2015-4-28 40 Humboldt Near creekside on Arcata Marsh, south of Interpretive Center 5 Comment
  HSC30743  Castilleja applegatei subsp. pinetorum D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5648 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  CAS-BOT-BC255520  Castilleja applegatei var. pinetorum Clarence R. Quick 1959-7-24 59 -32 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  HSC56116  Castilleja arachnoidea Gilbert Muth 1979-8-1 11889 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  UCD122407  Castilleja exserta C. Sander 2005-8-16 CA 330 -81 Humboldt Ecoregion 14. Manila Dunes ACEC. 3 Comment
  HSC39093  Castilleja exserta subsp. exserta R. Sutherland 1976-6-8 1 .8676 Humboldt 407 Comment
  HSC92193  Castilleja mendocinensis E. Mackey 1986-7-6 Humboldt Patrick's Point State Park, on trail to Wedding Rock. Comment
  UC1196860  Castilleja miniata Joseph P. Tracy 1927-8-22 8337 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC41275  Castilleja pruinosa Brad Klipfel 1974-6-25 427 Humboldt Horse Mtn. Comment
  UC1196744  Castilleja pruinosa Joseph P. Tracy 1912-7-26 3862 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC79430  Castilleja wightii Kenneth Clark 1980-6-14 670 Humboldt Western slope of Dead Man's Gulch 145 Comment
  RSA758814  Ceanothus arcuatus D. H. Wilken, E. L. Painter 2007-6-4 16738 Humboldt Titlow Road, 1.3 linear km southwest of summit of Horse Mountain, west of head of Horse Mountain Creek. 1325 Comment
  UC668171  Ceanothus cordulatus Joseph P. Tracy 1933-7-11 12681 Humboldt Cold Springs Grouse Mt. 1432 Comment
  HSC98788  Ceanothus cuneatus Cara Witte 2008-6-4 675 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1307 Comment
  JEPS82328  Ceanothus gloriosus var. exaltatus Roger Raiche 1983-7-18 30530 Humboldt 2.4 mi n rd to Shelter Cove (along King Peak Rd); King Range Comment
  CAS-BOT-BC63681  Ceanothus integerrimus L. B. Kildale 1928-5-19 5138 Humboldt Chalk Mountain. Comment
  HSC18291  Ceanothus integerrimus L. D. Napier 1962-5-13 4 Humboldt 10 mi W of Junction City near Hwy. 299 457 Comment
  CAS-BOT-BC50476  Ceanothus oliganthus J. R. McFarland 1997-4-10 s.n. Humboldt King Range National Conservation Area - 3.7 miles north on King Range Road from Shelter Cove Road. 601 Comment
  CAS-BOT-BC51223  Ceanothus parryi C. Hart Merriam 1920-8-27 s.n. Humboldt South fork Eel River (10 miles so. of Garberville) Comment
  HSC36679  Ceanothus parryi R. Sutherland 1975-5-2 11 .2575 Humboldt County rd. at S Fork Eeel River 95 Comment
  HSC36680  Ceanothus parryi R. Sutherland 1975-5-2 7 .2575 Humboldt Near old Hwy. 101 116 Comment
  HSC43211  Ceanothus parryi R. Sutherland 1975-4-4 1 .4475 Humboldt Rd. bank of Perry Meadow Rd. 244 Comment
  JEPS42371  Ceanothus parryi W. L. Jepson 1902-6-20 1906 Humboldt s Camp Grant (Hubbard's Station) 243 Comment
  UC249583  Ceanothus parryi Joseph P. Tracy 1921-5-27 5808 1/2 Humboldt near Humboldt-Mendocino County line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  HSC23293  Ceanothus pumilus D. E. Anderson, J. P. Smith 1971-7-6 - 1294 Humboldt Horse Mtn. 10 mi W of Willow Creek 1524 Comment
  HSC43188  Ceanothus pumilus R. Sutherland 1976-4-17 1 .17476 Humboldt 549 Comment
  CAS-BOT-BC52951  Ceanothus thyrsiflorus Joseph P. Tracy 1937-5-30 15317 Humboldt Bridgeville 198 Comment
  CAS-BOT-BC52981  Ceanothus thyrsiflorus Mrs. Rachel Ellery 1916-4-1 s.n. Humboldt Beatrice Comment
  CAS-BOT-BC52998  Ceanothus thyrsiflorus Carl B. Wolf 1927-8-22 806 Humboldt 1 mile south of Orick, along the hills near the ocean. Comment
  HSC18328  Ceanothus thyrsiflorus J. F. Knezevich 1968-5-14 442 Humboldt 11 mi. S of Ferndale on rd. to Cape Mendocino 305 Comment
  HSC41282  Ceanothus velutinus Brad Klipfel 1974-7-23 472 Humboldt Horse Mtn. Comment
  HSC56191  Ceanothus velutinus var. velutinus Gilbert Muth 1979-8-1 12131 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC582524  Centaurea benedicta Joseph P. Tracy 1928-10-7 8515 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  UC673087  Centaurea calcitrapa Joseph P. Tracy 1940-10-17 16760 Humboldt near Dyerville (South Fork Station) 45 Comment
  UC1119132  Centaurea melitensis H. L. Person 1932-7-23 Humboldt road e of Korbel; Eureka Quadrangle Comment
  CDA7304  Centaurea nigra Tario 1933-11-15 Humboldt Near Eureka. 0 Comment
  JEPS44138  Centaurea solstitialis Joseph P. Tracy 1933-8-27 13002 Humboldt 2 to 5 mi e of the South Fork (along the Eel River, Camp Grant); Eel River 45 Comment
  SEINET11860764  Centaurea solstitialis J. P. Tracy 1948-9-20 18216 Humboldt vicinity of Hosler Creek, Hoopa Valley 107 Comment
  JEPS25793  Centaurium muehlenbergii L. R. Heckard 1960-8-23 1211 Humboldt about 0.5 mi s Dry Lagoon State Park (near Orick) 152 Comment
  UC906759  Centaurium muehlenbergii Joseph P. Tracy 1942-6-15 17155 Humboldt Garberville 152 Comment
  HSC97246  Centaurium muehlenbergii Thomas W. Nelson, Dick Brummitt & Barbara Ertter 2004-7-4 9280 Humboldt Trinity River bar down stream from mouth of Willow Creek 152 Comment
  BLMAR299  Centaurium tenuiflorum Clara Sander 2002-7-16 299 Humboldt King range, East of Capetown, growing east of wildcat rd 152 Comment
  HSC70729  Cephalanthera austiniae Gail Newton 1980-7-14 1525 Humboldt Near Deadman Ridge 1097 Comment
  UC14951  Cephalanthera austiniae Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5625 Humboldt Bald Mt. Comment
  UC666978  Cephalanthera austiniae Joseph P. Tracy 1937-7-24 15526 Humboldt 2 mi. s.e. Devil's Hole (Trinity Summit); Trinity Summit 1584 Comment
  HSC73156  Cerastium glomeratum M. A. Baker 1980-5-18 1298 Humboldt Near Black Mtn. 1006 Comment
  UC1198316  Cerastium glomeratum Joseph P. Tracy 1921-4-24 5443 Humboldt Phillipsville Flat Northern Coast Ranges, S. Fork Eel R., Phillipsville Flat 91 Comment
  HSC89604  Cerastium glomeratum M. Roantree 1985-4-25 10 Humboldt E side of Trinidad Head. Comment
  HSC60028  Cercis occidentalis M. A. Baker 1977-6-6 369 Humboldt Hoopa Comment
  HSC18557  Cercocarpus montanus var. glaber R. J. Vernimen 1963-4-27 32 Humboldt 9 mi. S of Willow Creek, Grouse Mtn. area Comment
  CAS-BOT-BC85657  Chamaecyparis lawsoniana G. A. Coleman 1901-7-25 s.n. Humboldt Near head of Supply Creek, Hoopa Indian Reservation Comment
  RSA13571  Chamaecyparis lawsoniana Joseph P. Tracy 1927-3-27 7864 Humboldt Willow Creek Canyon 762 Comment
  SBBG367  Chamaecyparis lawsoniana J. W. Howe 1938-3-30 Humboldt Humboldt County [no specific locality] Comment
  HSC69761  Chamaesyce maculata Thomas W. Nelson, Jane P. Nelson 1977-9-4 3747 Humboldt Willow Creek Comment
  HSC72962  Cheilanthes gracillima Gail Newton 1980-7-14 1485 Humboldt Near Last Chance Ridge. 1219 Comment
  UC62675  Cheilanthes gracillima W. C. Blasdale 1896-6-6 Humboldt Kneeland Comment
  HSC38999  Cheilanthes gracillima Thomas W. Nelson, Jane Nelson 1976-5-31 2660 Humboldt County line, S of meadow along 5E27 just N of its junction with 1S07 1524 Comment
  RSA53850  Chenopodium botrys H. M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon Comment
  HSC41240  Chimaphila umbellata Brad Klipfel 1974-5-27 379 Humboldt Horse Mtn., NE face away from towers Comment
  HSC55158  Chimaphila umbellata Gilbert Muth 1979-8-1 12119 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  CAS-BOT-BC452227  Chimaphila umbellata Volney Rattan 1878-6-1 s.n. Humboldt North of Mad River Comment
  SJSU913B  Chimaphila umbellata J. W. Tilden 1946-6-20 1011 Humboldt Bluff Cr c. 1.5 mi above Klamath R Comment
  HSC99516  Chimaphila umbellata subsp. occidentalis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 179 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA249505  Chimaphila umbellata subsp. occidentalis R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-5 35145 Humboldt King Mountain 1220 Comment
  HSC100553  Chlorogalum pomeridianum Carl C. Marshall Jul 1886 260 Humboldt Throughout the Coast Range, Humboldt Bay. Comment
  CAS-BOT-BC236914  Chloropyron maritimum subsp. palustre Eva Buxton 2002-8-1 2001 Humboldt Salt marsh off King Salmon Ave. near P.G.E. Eureka Comment
  CAS-BOT-BC36479  Chrysolepis chrysophylla Carl B. Wolf 1930-10-30 1786 Humboldt Old Coast Road at Thorn 304 Comment
  UC1585408  Chrysolepis chrysophylla R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 UCBG 31 Humboldt W of Hoopa, just E of Pine Ridge Summit Bair Rd.; U.C. Botanical Garden 970 Comment
  HSC54607  Chrysolepis chrysophylla var. minor Overton, Butler 1979-7-24 9699 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC55104  Chrysolepis chrysophylla var. minor G. L. Clifton 1979-7-31 11845 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC1119747  Cichorium intybus H. L. Person 1932-8-7 Humboldt Korbel Eureka Comment
  HSC76194  Cinna latifolia Overton, Butler 1979-8-2 12506 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC668240  Circaea alpina subsp. pacifica Joseph P. Tracy 1937-6-20 15349 Humboldt 10 mi. up stream from mouth of Bear R.; Bear R. 152 Comment
  UCR48593  Cirsium arvense R. D. Goeden, Don W. Ricker 1987-9-2 870902- 15 Humboldt North Coast, Loleta, at bay on Cannibal Road 3 Comment
  SEINET201069  Cirsium arvense Joseph P. Tracy 1933-8-13 12963 Humboldt Arcata Bottom 15 Comment
  CAS-BOT-BC279975  Cirsium douglasii var. douglasii John Thomas Howell 1937-7-31 13716 Humboldt 5 miles east of Berry Summit Comment
  JEPS59296  Cirsium occidentale var. candidissimum W. L. Jepson 1932-8-8 16486 Humboldt Bull Creek Grasshopper Peak, Bull Creek 1005 Comment
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Jan 17 2008
  RSA168798  Cirsium occidentale var. candidissimum Joseph P. Tracy 1942-8-9 17302 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  RSA167261  Cirsium remotifolium var. rivulare Joseph P. Tracy 1947-6-8 17711 Humboldt Carlotta; open flat by old Strong's District School House, 5 miles east of town. 61 Comment
  RSA40410  Cirsium vulgare P. A. Munz 1948-8-13 12349 Humboldt Highway 229, 21 miles E of Blue Lake 762 Comment
  CAS-BOT-BC228803  Cistanthe umbellata R. K. Gierisch; D. H. Esplin 1969-7-1 3528 Humboldt Six Rivers National Forest. Grouse Mtn. Comment
  UC1541507  Clarkia amoena H. E. and S. T. Parks June 1928 256 Humboldt Hartsook 121 Comment
  UC144097  Clarkia amoena Joseph P. Tracy 1907-7-4 2584 Humboldt just n of mouth Little River; Northern Coast Ranges 320 Comment
  JEPS23479  Clarkia amoena subsp. amoena Joseph P. Tracy 1938-6-17 15957 Humboldt s of point Cape Mendocino (near ocean shore) 3 Comment
  JEPS43735  Clarkia amoena subsp. amoena W. L. Jepson 1936-8-18 17940 Humboldt Wildcat Ridge Comment
  CAS-BOT-BC160974  Clarkia amoena subsp. amoena L. R. Abrams 1922-6-25 8229 Humboldt 6 miles north of Garberville along Eel River Comment
  CAS-BOT-BC164180  Clarkia concinna Harley P. Chandler 1901-6-1 1325 Humboldt Hupa Indian Reservation 152 Comment
  UC594154  Clarkia concinna subsp. concinna S. K. Harris, J. P. Tracy 1936-6-10 3265 Humboldt near mouth South Fork Trinity River (hills w of river) 640 Comment
  CAS-BOT-BC172511  Clarkia purpurea subsp. quadrivulnera Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UC144081  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1909-7-31 3039 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  POM247175  Clarkia purpurea subsp. viminea Joseph P. Tracy 1936-6-10 14924 Humboldt South Fork Trinity River; mountain slopes west of its mouth 457 Comment
  UC144068  Clarkia rhomboidea Joseph P. Tracy July, 1908 2763 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges 762 Comment
  HSC75444  Claytonia cordifolia J. O. Sawyer 1980-7-18 3601 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC494113  Claytonia parviflora subsp. parviflora H. E. Parks, J. P. Tracy 1930-5-25 877 Humboldt Laribee Valley Comment
  UC203567  Claytonia parviflora subsp. parviflora Joseph P. Tracy 1918-4-7 4862 Humboldt mouth of Strawberry Creek; Northern Coast Ranges, Dows Prairie 6 Comment
  SEINET6903113  Claytonia perfoliata Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  SEINET9136502  Claytonia perfoliata subsp. mexicana C. E. Fellows 1972-4-29 485 Humboldt Ca 20 meters below the W side of the road to Kneeland, 8 miles ESE of Eureka, 3.1 miles above town of Freshwater. 610 Comment
  HSC78959  Claytonia perfoliata subsp. perfoliata L. P. Janeway, K. Berg 1984-4-11 726 Humboldt N Spit of Humboldt Bay, turnout along Samoa Rd., across from boat ramp just N of Coast Guard Station 3 Comment
  HSC44423  Claytonia saxosa Brad Klipfel 1975-5-30 652 Humboldt Horse Mtn. Comment
  RSA249337  Claytonia saxosa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5623 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  UC183592  Claytonia saxosa Joseph P. Tracy 1913-6-17 4185 Humboldt near Buck Mountain summit (between the first and second peaks of Buck Mountain); Northern Coast Ranges, Buck Mountain 1676 Comment
  HSC64327  Claytonia sibirica J. P. Smith 1973-5-26 6850 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC73102  Claytonia sibirica J. Detzer 1977-4-8 2 Humboldt S end of Patricks Point State Park, 0.2 mi. W of Hwy. 101, 5 mi. N of Trinidad 61 Comment
  RSA67628  Claytonia sibirica P. A. Munz 1951-7-15 16549 Humboldt 5 miles N of Willow Creek 305 Comment
  SFV1197  Claytonia sibirica J. Turner, F. M. Ball 1962-7-9 s. n. Humboldt Beside scenic Redwood Highway about 2 miles south of junction with freeway, 40 miles north of Mendocino-Humboldt county line. Comment
  UCD100884  Claytonia sibirica Joseph M. DiTomaso 1976-3-28 355 Humboldt Highway 299 near summit, 8 miles west of Willow Creek. Comment
  HSC14389  Clinopodium douglasii W. D. Stevens 1967-7-9 28 Humboldt Along the rd. to Three Creeks Summit Comment
  CAS-BOT-BC499341  Clintonia andrewsiana Doris K. Kildale 1926-7-22 2413 Humboldt Metropolitan, woods near Canyon Peak Comment
  HSC15446  Clintonia andrewsiana Jack Rockwell 1962-4-29 67 Humboldt S bank Van Duzen River E of Hwy. 101 Comment
  RSA66979  Clintonia andrewsiana E. K. Balls 1951-5-8 16512 Humboldt 3.5 miles south of Myers, Highway 101. Comment
  SEINET12047065  Clintonia andrewsiana Unknown 1972-1 s.n. Humboldt Humboldt State University Forest, W of campus with city limits of Arcata 198 Comment
  SEINET12047068  Clintonia andrewsiana F. H. Utech, Utech, C. L. 1972-1 72 -609 Humboldt Humboldt Redwoods State Park, Bull Creek Flats area 213 Comment
  UC1103460  Clintonia uniflora Joseph P. Tracy 1926-6-6 7582 Humboldt Hoopa Mountain, near summit on road w from Hoopa to Bair's Hoopa Mountain; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  UC885542  Collinsia grandiflora H. E. Parks and J. P. Tracy 1930-5-25 741 Humboldt Larrabee Valley 762 Comment
  HSC22862  Collinsia grandiflora D. E. Anderson 1965-4-24 3534 Humboldt Along Titlow Hill Rd. Comment
  UC582462  Collinsia grandiflora Joseph P. Tracy 1930-6-21 8781 Humboldt Larrabee Valley; North Coast Ranges; Larrabee Valley 701 Comment
  HSC66825  Collinsia greenei Gail Newton 1980-7-15 1555 Humboldt Near Sims Mtn. 1311 Comment
  CHSC63420  Collinsia linearis Vernon H. Oswald 1994-6-29 6357 Humboldt Titlow Hill Rd. (Forest Rd. 1) 3.9 mi S of Hwy. 299, SW of Willow Creek. 1289 Comment
  UC582453  Collinsia linearis Joseph P. Tracy 1933-7-25 12836 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  BLMAR643  Collinsia linearis Jennifer Wheeler 2011-6-29 643 Humboldt Lacks Creek, Pine Ridge Road 1097 Comment
  HSC49699  Collinsia linearis J. O. Sawyer 1977-7-3 3021 Humboldt At tish Tang at Tang Creek on Rd. S of Gorgan Hole Comment
  HSC96271  Collinsia linearis Eric Schori, Kazuyuki Ishimaru 2005-6-15 12 Humboldt About 18 miles S of Hwy. 299 1400 Comment
  JEPS6219  Collinsia parviflora Joseph P. Tracy 1933-6-13 12567 Humboldt w Hoopa (near summit on rd from Hoopa w to Bair's); Hoopa Mtn 1066 Comment
  UC1196839  Collinsia rattanii Joseph P. Tracy 1933-5-14 12173 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 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
  UC1196851  Collinsia sparsiflora var. collina Joseph P. Tracy 1913-6-20 4242 Humboldt Grassy slopes on lower foothills of Buck Mountain. 762 Comment
  HSC100912  Collinsia torreyi Carl C. Marshall Jun 1886 301 Humboldt Trinity Summit. Comment
  HSC44554  Collinsia torreyi Brad Klipfel 1973-7-15 173 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC45589  Collomia heterophylla Diane L. Reed 1978-5-27 137 Humboldt 0.3 mi. up Bair Rd. from Hwy. 299 Comment
  HSC36634  Collomia tracyi Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1907 Humboldt N side of Pine Mtn. Comment
  JEPS26237  Collomia tracyi Joseph P. Tracy 1939-8-16 16420 Humboldt Grouse Mountain 1524 Comment
  UC1197864  Collomia tracyi Mrs. C. M. Wilder 1923-7-23 Humboldt on sand bar along river Carlotta 30 Comment
  UC23379  Collomia tracyi Harley P. Chandler June 1901 1475 Humboldt Klamath River North Coast Ranges 426 Comment
  UC907814  Collomia tracyi Joseph P. Tracy 1939-8-5 16372 Humboldt in sand bar Van Duzen River, Dinsmore's 737 Comment
  RSA246751  Conium maculatum R. F. Thorne, P. Everett 1965-8-8 35237 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  UC1123583  Convolvulus arvensis H. L. Person 1932-8-1 Humboldt Korbel Eureka Quadrangle Comment
  UC176373  Corallorhiza maculata Joseph P. Tracy 1913-6-17 4191 Humboldt Buck Mountain Northern Coast Ranges (near summit) 1524 Comment
  HSC48687  Corallorhiza mertensiana Brad Klipfel 1973-7-31 256 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC28082  Corallorhiza mertensiana J. D. Ackerman, A. Montalvo 1973-7-4 94 Humboldt Grogan Hole Rd, 18 mi. E of Hoopa Comment
  UC1196458  Corallorhiza mertensiana Joseph P. Tracy 1926-6-6 7580 Humboldt Hoopa Mountain Northern Coast Ranges (near summit on road from Hoopa to Bair's) 1066 Comment
  HSC63024  Corallorhiza striata M. A. Baker 1979-6-24 903 Humboldt 2 km. S of Brush Mtn. Comment
  RSA286351  Corethrogyne filaginifolia var. californica R. F. Thorne 1974-7-29 45073 Humboldt Samoa Dunes. Comment
  JEPS50097  Cornus canadensis Joseph P. Tracy 1923-6-24 6356 Humboldt meadow near High Prairie (Bald Mt.); Northern Coast Ranges, Bald Mt. 1066 Comment
  HSC57031  Cornus nuttallii Overton, Butler 1979-7-24 9656 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC35022  Cornus nuttallii Chesnut and Drew 1888-7-9 Humboldt Kneeland Prairie Comment
  UC614834  Cornus nuttallii Beryl O. Schreiber 1934-6-5 1138 Humboldt rd. to Redding (Gray's Resort) Comment
  HSC58084  Cornus sericea subsp. occidentalis G. L. Clifton, Griswold 1979-8-1 11989 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UC1196900  Cornus sericea subsp. sericea Joseph P. Tracy Jul 16 1930-Jul 19 1930 9009 Humboldt forest near McKay Camp (S. Fork Mt.); Northern Coast Ranges, S. Fork Mt. 1676 Comment
  CAS-BOT-BC210541  Cornus sessilis Doris Kildale Gillespie 1941-4-16 s.n. Humboldt Unspecified Comment
  HSC6421  Cornus sessilis D. E. Anderson 1963-3-1 2368 Humboldt E Fork Forest Camp, along E Fork Willow Creek. Comment
  JEPS50174  Cornus sessilis Joseph P. Tracy 1922-4-30 6040 Humboldt Three Creeks Northern Coast Ranges, Three Creeks 670 Comment
  RSA46468  Cornus sessilis Doris K. Kildale 1927-7-3 3631 Humboldt Willow Creek Flat. Comment
  JEPS53366  Coronopus didymus W. L. Jepson 1932-7-28 16431 Humboldt Dyerville 88 Comment
  HSC6682  Coronopus didymus Lincoln Constance 1934-6-18 902 Humboldt S Fork Eel River, border of N Dyerville Flat, near S Fork RR Station and PO Comment
  CDA1906  Cortaderia jubata T. C. Fuller 1966-10-4 15238 Humboldt Northwestern; Outer North Coast Ranges region; 1100 acres, slope N above headquarters of Georgia Pacific Lumber Co. 0 Comment
  OBI36662  Corylus cornuta subsp. californica David J. Keil 1983-7-2 17312 Humboldt Ca. 4 mi SE of SR 299 along Titlow HIll Rd below Horse Mtn Summit Rd Comment
  HSC69750  Cotula australis Thomas W. Nelson 1977-10-10 3757 Humboldt Along 6th St. between G & H Sts.; Eureka Comment
  UC1198822  Crassula aquatica Joseph P. Tracy 1914-5-14 4470 Humboldt Fort Seward Northern Coast Ranges, Fort Seward 121 Comment
  UC302105  Crassula connata var. eremica Joseph P. Tracy 1926-5-9 7461 Humboldt valley of S. Yager Creek Northern Coast Ranges, valley of S. Yager Creek 762 Comment
  CAS-BOT-BC290340  Crepis acuminata Joseph P. Tracy 1935-7-30 14382 Humboldt Salmon Summit 2103 Comment
  UC1199460  Crepis acuminata Joseph P. Tracy 1933-7-25 12826 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC291480  Crepis capillaris Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  RSA15572  Crepis capillaris C. B. Wolf 1927-8-28 1188 Humboldt Eureka Bay on Arcata road Comment
  UC581730  Crepis occidentalis Joseph P. Tracy 1935-7-30 14387 Humboldt Salmon Summit; at top 2112 Comment
  CAS-BOT-BC290727  Crepis occidentalis subsp. conjuncta Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC98953  Crepis pleurocarpa Cara Witte 2008-7-28 953 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1565 Comment
  UC905064  Crepis setosa Henry M. Pollard 1948-8-8 Humboldt roadside between Orleans and Camp Creek Comment
  HSC5459  Crocidium multicaule H. E. Parks 1930-5-25 867 Humboldt Laribee Valley 762 Comment
  HSC40818  Cryptantha affinis Thomas W. Nelson, Jane P. Nelson 1976-6-22 2851 Humboldt Along road to Goat Hill at spring. 1646 Comment
  UC1239663  Cryptantha affinis Joseph P. Tracy 1939-8-5 16386 Humboldt Dinsmore's 737 Comment
  HSC40851  Cryptantha affinis Thomas W. Nelson 1976-7-9 2998 Humboldt Along W side of ridge S of E peak of Lassic Mtn., (Signal Peak). 1524 Comment
  SEINET12280860  Cryptantha milobakeri J. P. Tracy, Harris, S. K. 1942-1 17221 Humboldt E side of Hoopa Valley, hillside Comment
  UC525596  Cryptantha torreyana Joseph P. Tracy 1929-7-4 8622 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  HSC74455  Cryptogramma acrostichoides Gail Newton 1980-8-10 2005 Humboldt Near Blake Mtn. 1798 Comment
  SEINET11719535  Cryptogramma acrostichoides F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -317 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  HSC82965  Cuscuta salina A. L. Eicher 1985-8-17 Humboldt Border of Humboldt Bay .2 mi. S of mouth of Jacoby Creek 1 Comment
  POM318827  Cuscuta salina Patricia Wilder 1968-8-21 4416 a Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  RSA44472  Cynodon dactylon Henry M. Pollard 1948-7-18 s.n. Humboldt Orleans Comment
  UC1222263  Cynoglossum grande Joseph P. Tracy 1949-6-20 18314 Humboldt 6 mi. s.e. Arcata (Fickle Hill); Fickle Hill 609 Comment
  UC525558  Cynoglossum grande Joseph P. Tracy 1927-6-12 8154 Humboldt lower slopes Horse Mt.; Northern Coast Ranges, Horse Mt. 1219 Comment
  CAS-BOT-BC190372  Cynosurus cristatus Malcom A. Nobs; S. Galen Smith 1949-8-3 1195 Humboldt At the southern outskirts of Eureka. Comment
  UCD60127  Cynosurus cristatus Ray Evans 1956-7-19 s. n. Humboldt 4.5 miles northwest of Petrolia. Comment
  HSC7208  Cyperus acuminatus John H. Kynoch 1966-9-23 406 Humboldt Near Trinity River and Willow Creek 142 Comment
  UC213325  Cyperus bipartitus Joseph P. Tracy 1920-8-15 5366 Humboldt Klamath R. at mouth of Bluff Creek; Northern Coast Ranges, Klamath R. 152 Comment
  HSC97971  Cypripedium californicum Cara Witte 2007-6-21 316 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near mine area. 1283 Comment
  CAS-BOT-BC136508  Cypripedium montanum Doris K. Kildale 1929-5-26 9116 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  HSC11996  Cytisus scoparius D. La Conte 1970-7-7 21 Humboldt On Walnut Ave. at intersection with Campton Rd. Comment
  CAS-BOT-BC189763  Dactylis glomerata Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  HSC102143  Danthonia californica M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1049 Humboldt Patterson Meadows 1566 Comment
  UCD60465  Danthonia californica Mrs. Ida E. Varley 1915-7-27 s.n. Humboldt Ferndale. Comment
  UCD60964  Danthonia californica Joseph P. Tracy 1951-6-26 19571 a Humboldt Snow Camp and Twin Lakes vicinity. Comment
  UC526683  Danthonia californica var. americana Joseph P. Tracy 1927-7-4 8234 Humboldt Lone Star Creek North Coast Ranges, Iaqua 609 Comment
  UCD60512  Danthonia californica var. americana A. H. Murphy 1947-6-9 s.n. Humboldt Parrott's Ranch, Table Bluff, ca. 1.5 miles north of Loleta. Comment
  UC1152019  Danthonia unispicata Joseph P. Tracy 1951-7-26 19593 Humboldt Redwwod Creek Board Camp Mountain (extreme head, n side of mt.) Comment
  CAS-BOT-BC420357  Darmera peltata Doris K. Kildale 1928-6-24 5247 Humboldt Redwood Creek at Berry's Comment
  JEPS12211  Datura stramonium W. L. Jepson 1932-7-28 16436 Humboldt Dyerville 88 Comment
  RSA296790  Daucus pusillus J. P. Smith, T. Nelson 1977-6-30 s.n. Humboldt Samoa Peninsula just east of the drag strip. Comment
  HSC34963  Delphinium decorum subsp. tracyi Thomas W. Nelson 1975-5-24 1861 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC160929  Delphinium decorum subsp. tracyi Harley P. Chandler June 1901 1289 Humboldt Hupa Indian Reservation North Coast Ranges 1097 Comment
  HSC44634  Delphinium decorum subsp. tracyi Diane L. Reed 1978-5-27 125 Humboldt 2.9 mi. from Hwy. 299 on Titlow Hill Rd., Horse Mtn. Comment
  UC9180  Delphinium hesperium subsp. pallescens Harley P. Chandler June 1901 1410 Humboldt Klamath River North Coast Ranges 304 Comment
  CAS-BOT-BC9959  Delphinium nudicaule Volney Rattan 1879-1-1 s.n. Humboldt Hoopa Valley Comment
  HSC98907  Delphinium nudicaule Cara Witte 2007-5-23 106 Humboldt Near Grouse Mtn. Along 4N32. Approximately 0.5 mi. S of intersection with 5N04 and 4N32E. 1398 Comment
  UC160933  Delphinium nudicaule Joseph P. Tracy 1908-6-8 2635 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC24426  Delphinium nudicaule E. C. Murczek 1964-4-4 28 Humboldt 10 mi. N of Hoopa Comment
  HSC32935  Delphinium nuttallianum Thomas W. Nelson 1973-5-30 972 Humboldt Humboldt/Trinity Co. line, Mt. Lassic 1790 Comment
  HSC100616  Delphinium trolliifolium Carl C. Marshall Apr 1887 363 Humboldt Hoopa Valley. Comment
  HSC48786  Delphinium trolliifolium Brad Klipfel 1975-6-17 661 Humboldt Along Titlow Hill Rd. Comment
  POM172653  Delphinium trolliifolium Kneeland Prainie 1888-7-9 s.n. Humboldt Kneeland Prairie. Comment
  CAS-BOT-BC121961  Delphinium trolliifolium Doris K. Kildale 1927-7-10 3738 Humboldt Gans Prairie on Bal Hills Road Comment
  RSA68777  Delphinium trolliifolium Joseph P. Tracy 1927-6-5 8099 Humboldt Valley of S Yager Creek Comment
  UC13983  Delphinium trolliifolium Chesnut and Drew 1888-7-9 Humboldt Campbell's Comment
  UC984819  Delphinium trolliifolium A. M. Vollmer and L. Beane 1951-6-6 106 Humboldt on road between Orick and Weitchpec Comment
  HSC9586  Deschampsia cespitosa G. N. Bos 1965-5-15 255 Humboldt 8 mi. W of Berry Summit, along Hwy. 299 762 Comment
  LA10879  Deschampsia danthonioides Joseph P. Tracy; 1935-6-23 13969 Humboldt 1066 Comment
  SEINET3927645  Deschampsia danthonioides Joseph P. Tracy 1950-6-25 18901 Humboldt West side of Buck Mt. 3 miles south of Burr Valley.; 0 1219 Comment
  UC1103214  Deschampsia elongata J. P. Tracy 1900-7-4 874 Humboldt sand hills of Ocean Beach at Samoa; , Ocean Beach Comment
  HSC8603  Deschampsia elongata D. W. C. 1956-5-29 13 Humboldt Mattole- Rio Del -Atwell Creek Comment
  UC1198795  Descurainia incana Joseph P. Tracy 1935-7-22 14128 Humboldt Corral Prairie Trinity Summit (along trail) 1584 Comment
  UC146101  Dicentra formosa J. P. Tracy 1903-8-4 1928 Humboldt immediate vicinity Eureka 0 Comment
  UC503032  Dicentra formosa Joseph P. Tracy Jul 16 1930-Jul 19 1930 9042 Humboldt near Blake Lookout (along summit South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1737 Comment
  JEPS9740  Dicentra formosa Lincoln Constance 1934-6-3 799 Humboldt N. Dyerville Flat; South Fork Eel River, Bull Creek Region Comment
  UC1222561  Dicentra formosa Joseph P. Tracy 1950-6-8 18719 Humboldt 7 mi s Ferndale (Mountain Glen); Bear River Ridge, Mountain Glen 609 Comment
  UC1362285  Dicentra formosa Kingsley R. Stern 1964-6-15 2108 Humboldt ca 2.5 mi s Fortuna (0.5 mi e on Drake Hill Road, on Newman property) Comment
  HSC72685  Dicentra formosa subsp. oregana J. P. Smith 1977-7-3 9267 Humboldt Onion Lake Comment
  CAS-BOT-BC209196  Dichanthelium acuminatum subsp. acuminatum Joseph P. Tracy 1900-8-26 925 Humboldt Eureka 60 Comment
  CAS-BOT-BC253636  Dichanthelium acuminatum subsp. acuminatum R. Spellenberg 1966-9-8 1630 Humboldt Bank of S Fork Eel River at Highway 101, 5 miles S of Garberville Comment
  JEPS64174  Dichelostemma capitatum Joseph P. Tracy 1925-5-30 7028 Humboldt Laribee Valley Northern Coast Ranges 701 Comment
  CAS-BOT-BC483663  Dichelostemma capitatum R. James; M. Goering; S. Matthews 1985-4-20 040 Humboldt Burnt Ranch Campground, Shata-Trinity National Forest 432 Comment
  JEPS64151  Dichelostemma capitatum Milo S. Baker 137 Humboldt South Fork Yager Creek Comment
  UCD139216  Dichelostemma capitatum subsp. capitatum K. Esau 1934-5-7 s.n. Humboldt above Fort Seward. 457 Comment
  HSC38095  Dichelostemma congestum Thomas W. Nelson, James Nelson 1976-5-30 2616 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC102206  Dichelostemma ida-maia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1121 Humboldt Andy's Camp 1564 Comment
  RSA120194  Dichelostemma ida-maia S. S. Tillett 1956-7-6 622 Humboldt 12.5 miles from Orleans, along Bar Shanty Road. 1174 Comment
  UC535761  Dichelostemma ida-maia Eleanor Armstrong 1934-5-17 Humboldt n of Redway Comment
  UC666912  Dichelostemma ida-maia Joseph P. Tracy 1937-7-19 15450 Humboldt nw slope Buck Mountain 914 Comment
  UC1198174  Dichelostemma multiflorum Joseph P. Tracy 1939-4-29 16240 Humboldt mouth of Slate Creek Klamath River 121 Comment
  SD92990  Digitalis purpurea Walter Bertsch 1953-7-30 227 Humboldt Redwood forest along highway 101 near Dyerville. 60 Comment
  SEINET8245388  Diplacus kelloggii Unknown 1942-5-12 2894 Humboldt at junction of Klamath and Salmon rivers, 1 mile south of Somes Bar. 152 Comment
  SEINET5741149 Image available Dipsacus fullonum Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6110 Humboldt In a waste area along Giuntoli Lane in Arcata. Adjacent to Eureka Sand and Gravel Company and across the road from T. P. Tire Service (1265 Giuntoli Lane).; Arcata Comment
  UCD137492  Dipsacus fullonum Joseph P. Tracy 1937-8-3 15610 Humboldt along Mad River, near Blue Lake. 15 Comment
  POM118601  Disporum smithii Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  RSA520558  Disporum smithii Michael A. Hanson 1990-5-21 70 Humboldt 0.5 miles (0.8 km) E of Humboldt State University Life Science Building in Arcata. Comment
  SEINET4170364  Disporum smithii Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15086 Humboldt Under Redwood, Bolling Grove State Park Comment
  UC1197655  Disporum smithii Joseph P. Tracy 1924-5-4 6671 Humboldt Strong's Station on the Van Duzen River Van Duzen River; Northern Coast Ranges, , Strong's Station 91 Comment
  CAS-BOT-BC208663  Distichlis spicata David D. Keck 1938-8-5 4769 Humboldt Big Lagoon Comment
  CHSC69508  Distichlis spicata Vernon Oswald; Lowell Ahart 1997-9-4 8850 Humboldt North Coast Region. Big Lagoon County Park at the southwest edge of Big Lagoon. 3 Comment
  HSC26352  Distichlis spicata T. O. Osborne 1970-4-5 68 Humboldt Flat-iron rock, 3/4 mi. NW of Trinidad Lighthouse. Comment
  RSA46481  Dodecatheon hendersonii Doris K. Kildale 1927-3-20 2908 Humboldt Phillipsville Comment
  RSA168808  Dodecatheon jeffreyi Joseph P. Tracy 1951-6-14 19406 Humboldt Snow Camp. 1402 Comment
  SEINET201053 Image available Dodecatheon jeffreyi Joseph P. Tracy 1932-7-17 10669 Humboldt Trinity Summit; ridges East of Corral Prarie. 1829 Comment
  UC1046562  Dodecatheon jeffreyi R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3418 Humboldt ridge between Mad River and Redwood Creek (edge of meadow at Snow Camp, Bald Mountain); ridge btw Mad River and Redwood Creek, Bald Mt, Snow Camp 1432 Comment
  HSC97948  Downingia elegans Cara Witte 2007-7-2 396 Humboldt Mud Lake. Off National Forest 1, near Buck Flat. 1569 Comment
  UC34954  Downingia elegans Chesnut and Drew 1888-7-10 Humboldt near Jarnigan's Comment
  JEPS1611  Draperia systyla Joseph P. Tracy 1935-7-31 14389 Humboldt Devil's Backbone; ridge connecting Trinity Summit with Salmon Summit 1524 Comment
  RSA0011676  Drosera rotundifolia C. B. Wolf 1937-8-10 2901 Humboldt Big Lagoon, bog at state park. 6 Comment
  UC183604  Drosera rotundifolia Mrs. Alma Bonstell 1912-8-5 Humboldt Christmas Prairie Northern Coast Ranges 914 Comment
  HSC59622  Drymocallis glandulosa J. P. Smith, Steve Selva 1970-6-30 4148 Humboldt Comment
  HSC57995  Drymocallis lactea var. lactea G. L. Clifton, Griswold 1979-7-31 11758 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CAS-BOT-BC71055  Dryopteris expansa Mrs. H. C. Cantelow 1936-5-18 1378 Humboldt 8 mi. N. of Orick Comment
  UC62809  Dryopteris expansa Marshall A. Howe 1896-5-30 Humboldt Eureka Comment
  CAS-BOT-BC71056  Dryopteris expansa Doris K. Kildale 1928-12-23 6761 Humboldt on Orick - Bald Hills road Comment
  HSC26394  Dudleya farinosa T. O. Osborne 1970-9-16 29 Humboldt Trinidad Bay, Prisoner Rock Comment
  HSC91611  Dudleya farinosa E. Mackey 1986-6-16 Humboldt Patricks Point State Park Comment
  HSC26463  Dudleya farinosa T. O. Osborne 1970-7-18 21 Humboldt Sugarloaf Rock, Cape Mendocino Comment
  CAS-BOT-BC197062  Echinochloa crus-galli Henry M. Pollard 1945-8-24 s.n. Humboldt Near Harley place Comment
  CAS-BOT-BC197256  Echinochloa muricata var. microstachya Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  HSC99981  Ehrharta erecta Sydney Carothers 2009-3-5 Humboldt H. S. U campus, due N of the experimental greenhouse. 152 Comment
  CAS-BOT-BC113437  Eleocharis acicularis Henry M. Pollard 1945-8-28 s.n. Humboldt Near Orleans. Pond near Harley place. Comment
  UC1116223  Eleocharis acicularis Joseph P. Tracy 1934-7-13 13393 Humboldt Dow's Prairie; dried pond 60 Comment
  HSC98018  Eleocharis engelmannii Cara Witte 2007-7-17 534 Humboldt Intersection of 6N01B and National Forest 1. 1427 Comment
  CAS-BOT-BC112840  Eleocharis macrostachya LeRoy Abrams 1922-6-25 8267 Humboldt Big Lagoon, south of Orick Comment
  UC213331  Eleocharis macrostachya Joseph P. Tracy 1920-8-29 5396 Humboldt Little River, borders of lagoon Northern Coast Ranges 6 Comment
  CHSC96433  Eleocharis pachycarpa Gordon Leppig 1998-7-19 979 Humboldt Big Lagoon County Park, Big Lagoon Bog. UTM Zone 10 NAD 1927, 405321E, 4557202N. 3 Comment
  UC666880  Eleocharis pachycarpa H. E. Parks and Joseph P. Tracy 1931-6-7 9569 Humboldt Trinidad 60 Comment
  POM87948  Eleocharis palustris Le Roy Abrams 8267 Humboldt Big Lagoon, south of Orick. Comment
  RSA44449  Elymus elymoides Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. trail 1677 Comment
  HSC58630  Elymus elymoides var. elymoides Overton, Butler 1979-7-31 11484 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC58677  Elymus elymoides var. elymoides Gilbert Muth 1979-8-1 12187 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  HSC40329  Elymus glaucus Thomas W. Nelson 1976-7-9 2993 Humboldt Ridge S of the E peak of the Lassic Peak (Signal peak) group. 1707 Comment
  UC1103207  Elymus glaucus J. P. Tracy 1901-6-16 1143 Humboldt Immediate vicinity of Eureka 0 Comment
  UC1103200  Elymus glaucus Joseph P. Tracy 1950-8-20 19327 1/2 Humboldt near Slate Creek; Klamath River 121 Comment
  HSC102546  Elymus glaucus subsp. glaucus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1536 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC185826  Elymus trachycaulus Joseph P. Tracy 1912-7-27 3885 Humboldt Kneeland Prairie Northern Coast Ranges of California 762 Comment
  HSC43234  Epilobium brachycarpum R. Sutherland 1976-8-6 4 .6876 Humboldt 229 Comment
  UC183696  Epilobium campestre Joseph P. Tracy 1912-8-4 3978 Humboldt Carlotta 60 Comment
  BLMAR386  Epilobium canum subsp. latifolium Jennifer Anthony-Wheeler 2004-9-1 386 Humboldt Horse Mtn, Growing along titlow hill road 18+ miles 1584 Comment
  HSC54566  Epilobium ciliatum subsp. ciliatum Overton, Butler 1979-7-24 9586 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC55111  Epilobium ciliatum subsp. ciliatum G. L. Clifton 1979-7-31 11855 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC74686  Epilobium ciliatum subsp. ciliatum Gail Newton 1981-8-7 2452 Humboldt Near Board Camp Mtn. 1478 Comment
  HSC27041  Epilobium ciliatum subsp. ciliatum Brad Klipfel 1973-8-25 288 Humboldt Near Lazy L Ranch, Fickle Hill Rd. Comment
  UC668282  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1937-8-12 15649 Humboldt in and around meadow Snow Camp 1402 Comment
  POM89782  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1919-9-18 5225 Humboldt Northern Coast Ranges: Trinity Summit 1890 Comment
  UCD20169  Epilobium ciliatum subsp. glandulosum J. M. Tucker 1948-9-3 1858 Humboldt Clear Lake, near junction of Friday Ridge Road and Horse Mountain-Grouce Mountain Road. Comment
  RSA755158  Epilobium ciliatum subsp. watsonii Robert F. Thorne, P. Everett 1965-8-5 35153 Humboldt Samoa Dunes. 3 Comment
  UC1198501  Epilobium densiflorum Joseph P. Tracy 1914-6-28 4517 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC161070  Epilobium densiflorum Joseph P. Tracy 1911-7-8 3475 Humboldt near mouth of Willow Creek; Northern Coast Ranges, valley of Trinity River 152 Comment
  JEPS38191  Epilobium densiflorum W. L. Jepson 1927-7-3 12364 Humboldt Miranda Station South Fork Eel River 228 Comment
  JEPS38204  Epilobium densiflorum Joseph P. Tracy 1917-9-3 4852 Humboldt Jones Ranch Northern Coast Ranges, Grouse Mt. (lower w slopes) 914 Comment
  UC902168  Epilobium densiflorum Joseph P. Tracy 1942-7-18 17279 Humboldt along ditch in field Garberville 152 Comment
  UCD106289  Epilobium densiflorum Roman Gankin 1965-8-6 561 Humboldt 2.5 miles SW of Capetown. Comment
  HSC54670  Epilobium foliosum Overton, Butler 1979-7-25 9908 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  UC1198488  Epilobium foliosum Joseph P. Tracy 1940-5-18 16565 Humboldt on an exposed rock outcrop Prairie Creek 91 Comment
  HSC102101  Epilobium glaberrimum subsp. fastigiatum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1004 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC562510  Epilobium hallianum Joseph P. Tracy 1933-7-25 12853 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  RSA181877  Epilobium hallianum Joseph P. Tracy 1931-6-28 9589 Humboldt Northern Coast Ranges: Buck Mountain, lower foothills of its northwest slope 762 Comment
  HSC58173  Epilobium minutum G. L. Clifton, Griswold 1979-8-2 12252 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC75356  Epilobium minutum J. O. Sawyer, M. A. Ericksen 1980-7-18 3643 Humboldt Along FS Rd. 10N02, S of Middle Fork of Mill Creek Comment
  UCR45444  Epilobium minutum N. Meiselman, M. Bransom, D. Brown, Ron Hildebrandt 1986-4-19 28 Humboldt North Coast Range, Horse Mountain, 0.5 mi. down Titlow Road from Ski Area 1372 Comment
  CAS-BOT-BC171828  Epilobium oreganum Joseph P. Tracy 1933-7-25 12835 Humboldt Grouse Mountain, North Coast Ranges 1524 Comment
  UC1225850  Epipactis gigantea Joseph P. Tracy 1948-8-22 18107 Humboldt Blue Slide Van Duzen River 91 Comment
  UC845344  Epipactis gigantea Ira L. Wiggins 1930-7-8 4677 Humboldt cliffs along river near Scotia; Eel River Comment
  HSC54653  Equisetum telmateia subsp. braunii Overton, Butler 1979-7-25 9861 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  RSA53861  Eragrostis cilianensis Henry M. Pollard 1946-8-10 s.n. Humboldt Klamath River near Wilson Creek, Orleans region Comment
  CAS-BOT-BC299911  Erechtites minimus H. E. Parks 1931-9-1 1058 Humboldt Trinidad 76 Comment
  HSC24597  Erechtites minimus Jerry Parker 1968-10-23 177 Humboldt Clam Beach Comment
  HSC40254  Erechtites minimus Linda M. Barker 1976-8-2 1677 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  POM51468  Erechtites minimus Joseph P. Tracy 1918-7-28 5088 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay. Comment
  CAS-BOT-BC131507  Ericameria arborescens H. E. McMinn 1922-8-3 476 Humboldt Mt. slope - above S.F., Eel River Comment
  RSA697104  Erigeron biolettii J. Russell Bruff 1937-8-17 935 Humboldt Richardson Grove, bed of Eel River. Comment
  UC87757  Erigeron foliosus var. mendocinus J. W. Blankinship 1893-7-19 Humboldt Van Duzen River; banks Comment
  UC166099  Erigeron glaucus J. P. Tracy 1900-7-4 888 Humboldt sand hills of ocean beach at Samoa (opp. Eureka) Comment
  UC87824  Erigeron inornatus var. inornatus W. W. Price 1890-6-5 Humboldt Comment
  HSC66280  Erigeron maniopotamicus M. A. Baker 1980-6-28 2479 Humboldt Near Mad River Buttes 1445 Comment
  RSA47128  Erigeron philadelphicus Doris K. Kildale 1925-6-20 717 Humboldt Big Lagoon Comment
  HSC55020  Eriogonum compositum Overton, Butler 1979-7-31 11429 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UCR37906  Eriogonum compositum D. K. Imper 1982-7-2 1411 Humboldt Near Connely Creek, N Fork 1493 Comment
  POM232031  Eriogonum latifolium I. L. Wiggins 1930-7-11 4680 Humboldt Near Samoa Comment
  SBBG53807  Eriogonum latifolium C. M. Hoak 1931-7-14 Humboldt above Eureka Comment
  POM319175  Eriogonum latifolium Patricia Wilder 1968-8-21 4400 Humboldt Northern coastal arm of Humboldt Bay, ca. 2 miles SW of Samoa. Humboldt Bay drainage area. 8 Comment
  RSA44506  Eriogonum luteolum H. M. Pollard 1948-8-7 s.n. Humboldt Near mouth of Camp Creek, near Orleans Comment
  SEINET6944764  Eriogonum nudum Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  UC1198139  Eriogonum nudum var. nudum Joseph P. Tracy 1939-8-20 16430 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  SD22520  Eriogonum nudum var. oblongifolium Susan G. Stokes 1932-7-13 Humboldt From Garberville to Eureka Comment
  UC55394  Eriogonum umbellatum var. dumosum P. E. Goddard 1901-7-10 55 Humboldt Hupa Comment
  UC774994  Eriogonum umbellatum var. dumosum Carl B. Wolf 1937-8-13 9221 Humboldt 8 mi e Hoopa Valley (on new road towards Trinity Square); North Coast Range 1219 Comment
  RSA249330  Eriophorum crinigerum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5566 Humboldt Westward lower slopes of Black Lassic near Trinity County line 1585 Comment
  CAS-BOT-BC298514  Eriophyllum confertiflorum Kenneth Clark 1979-6-30 461 Humboldt Shelter Cove. Dead Man's Gulch, on lower terraces 9 Comment
  HSC35935  Eriophyllum lanatum var. achilleoides Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2028 Humboldt French Camp, Bald Hills. Comment
  HSC97466  Eriophyllum lanatum var. achilleoides Cara Witte 2007-5-29 129 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  JEPS34606  Eriophyllum lanatum var. achilleoides W. L. Jepson 1915-6-8 6048 Humboldt Yankee Hill Columbia, Yankee Hill 762 Comment
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Feb 8 2020
  UC582677  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1936-6-10 14929 Humboldt mountain slopes w of mouth South Fork Trinity River 457 Comment
  POM358028  Eriophyllum lanatum var. aphanactis Thomas W. Nelson, Jane P. Nelson 1977-7-1 3579 Humboldt Head of North Fork of Conley Creek, W side of road N from Alder Spring. 1463 Comment
  POM160263  Eriophyllum lanatum var. arachnoideum Joseph P. Tracy 1926-6-18 7607 Humboldt Humboldt Hill 152 Comment
  RSA168821  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1947-7-5 17784 Humboldt Ridge west of Mud Springs; Trinity Summit 1159 Comment
  HSC26363  Erodium cicutarium T. O. Osborne 1970-5-24 87 Humboldt Flat-iron Rock, 3/4 mi. NW Trinidad Lighthouse Comment
  SEINET12118220  Eryngium aristulatum J. P. Tracy 1912-1 3777 & 4001 Humboldt Alton 91 Comment
  UC203988  Eryngium armatum Joseph P. Tracy 1918-7-3 4994 Humboldt near ocean Shelter Cove; Northern Coast Ranges, Shelter Cove 15 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
  HSC57884  Erysimum perenne Walter Overton, Marvin Butler 1979-7-31 11428 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  SEINET13694469 Image available Erythranthe alsinoides Joseph P. Tracy 1923-1 6258 Humboldt Kneeland prairie 762 Comment
  HSC26306  Erythronium californicum Thomas W. Nelson 1971-4-24 402 Humboldt Overlooking the E Fork of Willow Creek, S of Hwy. 299 Comment
  HSC97457  Erythronium californicum C. Witte 2007-5-17 26 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. Near utility towers. 1483 Comment
  UC1222542  Erythronium californicum Joseph P. Tracy 1950-4-20 18616 Humboldt two mi w Dinsmore's (lower foothills of nw slope of mountain); Buck Mountain 762 Comment
  UC1225861  Erythronium grandiflorum Joseph P. Tracy 1942-6-23 17255 Humboldt near Water Dog Lakes; Trinity Summit 1828 Comment
  UC13769  Erythronium grandiflorum W. C. Blasdale 1896-6-9 Humboldt top S. Fork Mountain Comment
  HSC104422  Erythronium grandiflorum Sydney Carothers 2004-5-31 42 Humboldt Grouse Mountain; back side of Grouse Mtn., slope above Forest Service Rd. 5NO4, below summit 1610 Comment
  HSC79053  Erythronium grandiflorum subsp. grandiflorum D. K. Imper 1984-5-16 Humboldt 0.25 mi. E of 6N01 where it junctions with 6N08 1524 Comment
  HSC98456  Eschscholzia californica D. E. Anderson 1961-9-2 1769 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  RSA0024550  Eucephalus ledophyllus var. covillei Joseph P. Tracy 1919-9-18 5227 Humboldt Trinity Summit. 1890 Comment
  HSC5687  Euchiton sphaericus J. P. Tracy 1936-8-23 15162 Humboldt Carlotta 30 Comment
  CAS-BOT-BC310491  Euchiton sphaericus Joseph P. Tracy 1936-8-24 15176 Humboldt Fickle Hill. (6 mi. S.E. of Arcata) 609 Comment
  CAS-BOT-BC206925  Euonymus occidentalis Joseph P. Tracy; H. E. Parks 1925-6-14 7123 Humboldt Kneeland Paririe Road, along stream. 457 Comment
  JEPS51869  Euphorbia crenulata Harley P. Chandler Jun 1901 1457 Humboldt Bluff Creek; North Coast Ranges, Klamath River 304 Comment
  HSC59575  Euphorbia peplus Rick Lundquist 1979-4-24 37 Humboldt Arcata, lower Church parking lot at E end of 16th St. 46 Comment
  UC302983  Euphorbia spathulata Joseph P. Tracy 1926-5-2 7431 Humboldt near South Fork; Trinity River Valley 182 Comment
  UC581784  Eurybia radulina Joseph P. Tracy 1929-10-6 8677 Humboldt Kneeland Prairie, on Butler Valley Road Kneeland Prairie 609 Comment
  CDA30697  Euthamia occidentalis M. K. Beyers, I. Shepardson 2009-9-13 249 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  RSA273307  Festuca californica var. californica Thomas W. Nelson, Jane P. Nelson 1976-6-16 2740 Humboldt West of Alder Springs along 2S07. 1524 Comment
  BLMAR13  Festuca idahoensis Brad Barr June, 1982 13 Humboldt King range, HJ ridge Comment
  CAS-BOT-BC278421  Festuca idahoensis Joseph P. Tracy 1930-7-10 8867 Humboldt Northern Coast Ranges. Brannan Mountain 1219 Comment
  HSC26160  Festuca idahoensis J. P. Smith, Steve Selva 1970-6-30 4111 Humboldt Comment
  UC526869  Festuca idahoensis Joseph P. Tracy 1930-6-8 8729 Humboldt Kneeland Prairie North Coast Ranges 762 Comment
  UC70909  Festuca idahoensis Joseph Burtt Davy and Walter C. Blasdale 1899-6-27 5877 Humboldt Martins Ferry Comment
  HSC63851  Festuca occidentalis M. A. Baker 1979-6-29 963 Humboldt Hopkin's Creek. 750 Comment
  POM126170  Festuca occidentalis Joseph P. Tracy 1900-5-22 796 Humboldt Immediate vicinity of Eureka. 0 Comment
  UC187102  Festuca occidentalis J. P. Tracy 1900-5-22 796 Humboldt immediate vicinity Eureka 0 Comment
  UC525638  Festuca roemeri Joseph P. Tracy 1933-7-25 12890 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC1145216  Festuca rubra Joseph P. Tracy 1938-7-4 15986 Humboldt Valley of South Yager Creek 762 Comment
  UC188848  Festuca subuliflora J. Burtt Davy and W. C. Blasdale 1899-6-13 5494 Humboldt Camp Grant North Coast Ranges Comment
  UC1152012  Festuca subuliflora A. H. Murphy 1951-5-15 31 Humboldt 0.5 mi s McCann (on Fruitland Road) Comment
  UC249609  Foeniculum vulgare Joseph P. Tracy 1922-8 6104 Humboldt Alton Northern Coast Region, Alton 30 Comment
  HSC97577  Fragaria vesca Cara Witte 2007-5-29 130 Humboldt Along National Forest 1. Approximately 1/2 mile south of White Oak Opening. 1251 Comment
  JEPS44674  Fragaria virginiana Joseph P. Tracy 1932-7-16 10616 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC31219  Frangula californica D. E. Anderson 1972-6-20 5730 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  CAS-BOT-BC52732  Frangula californica subsp. californica L. R. Abrams 1918-6-16 7138 Humboldt Willow Creek Comment
  CAS-BOT-BC59961  Frangula purshiana W. R. Dudley 1899-6-21 s.n. Humboldt Above Scotia. Comment
  SEINET9354429  Frangula purshiana Unknown 1965-9-30 Humboldt Kneeland Comment
  SEINET200756  Frasera speciosa Joseph P. Tracy 1917-9-2 4851 Humboldt Grouse Mt. 1524 Comment
  SEINET5012890  Fraxinus latifolia Unknown 1995-4-26 1387 Humboldt Six Rivers Ntl Forest. Hwy 36, 2km W of town. Comment
  HSC15539  Fritillaria affinis D. E. Anderson 1962-5-1 2189 Humboldt Junction of Redwood Creek Rd. and rd. to Hoopa Comment
  UC1197638  Fritillaria atropurpurea Joseph P. Tracy 1935-7-30 14375 Humboldt Salmon Summit, just below the top Salmon Summit 2072 Comment
  HSC16383  Fuchsia magellanica N. D. Dennis 1965-5-5 48 Humboldt 2 mi. N of Trinidad, 1 mi. E of College Cove Comment
  HSC100645  Galium Carl C. Marshall Jun 1886 13 Humboldt Pilot Creek. Comment
  UC169073  Galium bolanderi Harley P. Chandler 1901-6-4 1326 Humboldt Campbell Creek North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC1196105  Galium californicum subsp. californicum Joseph P. Tracy 1925-8-9 7228 Humboldt opposite Miranda; Salmon Creek 91 Comment
  HSC39597  Galium grayanum var. grayanum Thomas W. Nelson, Jane P. Nelson 1976-7-1 2917 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  JEPS6513  Galium mollugo Harold E. Parks and Joseph P. Tracy 1937-7-16 11451 Humboldt near Trinidad; near Trinidad 60 Comment
  RSA245002  Galium nuttallii William J. Ferlatte, B. D. Rogers 1966-6-15 2092 Humboldt Near Bridgeville. Comment
  JEPS25694  Galium parisiense P. C. Hutchison 1961-5-22 2025 Humboldt ca 9.1 mi ne Klamath River bridge at Weitchpec; Klamath River canyon Comment
  UC1196094  Galium parisiense Joseph P. Tracy 1946-8-25 17645 Humboldt Alton to Fortuna (on gravel bars); Eel River 15 Comment
  JEPS6617  Galium porrigens var. porrigens Joseph P. Tracy 1926-4-11 7406 A & B Humboldt Bridgeville 198 Comment
  SD70521  Galium porrigens var. porrigens Lauramay T. Dempster, G. L. Stebbins 1963-7-8 3843 Humboldt Willow Creek at Hwy. crossing north of Willow Creek town 459 Comment
  POM60798  Galium trifidum Joseph P. Tracy 1906-8-18 2542 Humboldt Eureka. 0 Comment
  HSC99083  Galium triflorum Cara Witte 2008-7-28 954 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1565 Comment
  HSC19780  Galium triflorum Jana Kattenhorn 1970-10-19 86 Humboldt Up Jolly Giant Creek from dorms Comment
  SEINET12335256  Galium triflorum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -278 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  HSC40952  Gamochaeta ustulata Linda M. Barker 1976-7-5 1539 Humboldt 3 mi. W of Arcata. Comment
  UC165753  Gamochaeta ustulata J. P. Tracy 1906-5-20 2468 Humboldt immediate vicinity Eureka 0 Comment
  UC1199354  Gamochaeta ustulata Joseph P. Tracy 1917-7-8 4828 Humboldt Kneeland Prairie Road 457 Comment
  HSC56997  Garrya buxifolia Overton, Butler 1979-7-24 9574 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC8386  Garrya elliptica L. Lankow 1968-11-17 Humboldt Patrick's Point State Park Comment
  HSC89538  Garrya elliptica M. Roantree 1985-4-25 1 Humboldt E side of Trinidad Head. Comment
  RSA392970  Garrya elliptica Maude Minthorn s.n. Humboldt Ferndale. Comment
  CAS-BOT-BC182168  Garrya fremontii Joseph P. Tracy 1932-3-6 9773 Humboldt Trinity River Valley at Willow Creek 152 Comment
  UC314602  Garrya fremontii Joseph P. Tracy 1925-9-6 7260 Humboldt near Don Juan Point (Trinity River); Northern Coast Ranges 304 Comment
  UCD39984  Garrya fremontii Rodney Gale Myatt 1971-9-21 1189 Humboldt Near Orleans, northeast of Hoopa Reservation, and along Klamath River. 426 Comment
  HSC23125  Gaultheria shallon G. M. Nordstrom 1966-4-24 17 Humboldt Kneeland-Maple Creek Rd., near jct. with Korbel rd. Comment
  HSC7813  Gaultheria shallon D. B. Bader 1963-4-1 48 Humboldt Second of the Clam Beach lagoons, W of Hwy. 101, E bank of the lagoon Comment
  HSC98344  Gaultheria shallon Jimerson, J. Pageau 1979-6-12 531 Humboldt Near Hopkins Butte, close to the town of Orleans 1036 Comment
  RSA467225  Gaultheria shallon Maude Minthorn s.n. Humboldt Ferndale. Comment
  HSC75456  Gayophytum diffusum subsp. parviflorum J. O. Sawyer 1980-7-18 3600 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  POM214928  Gayophytum heterozygum Joseph P. Tracy 1932-7-12 10456 Humboldt Klamath Mountains, Trinity Summit, Head of Brett Hole 1829 Comment
  UC1198638  Gentiana affinis var. ovata J. P. Tracy 1896-8 15 Humboldt immediate vicinity Eureka; Rick's Prairie 0 Comment
  UC1197397  Geranium bicknellii Joseph P. Tracy 1949-8-4 18422 Humboldt Mud Springs Trinity Summit 1341 Comment
  UC1197402  Geranium carolinianum Joseph P. Tracy 1935-5-25 13875 Humboldt Fort Seward 106 Comment
  UC1586897  Geranium dissectum Juha Pykala and D. H. Norris 1987-5-20 751 Humboldt about 7.5 rd mi s Ferndale (along Wildcat Road, near Green Pond Ranch) 450 Comment
  HSC95593  Geranium dissectum Andrea Pickart 2002-5-24 110 Humboldt CDFG's Mad River Slough Wildlife Area, Arcata Bottoms 0 Comment
  UC1541358  Geranium molle Harold E. Parks May 1934 4323 Humboldt Spruce Cove Trinidad Comment
  HSC8655  Geranium molle Francis Winter 1960-4-30 Humboldt Samoa Peninsula, 6 mi. W of Arcata. Comment
  HSC12713  Geranium retrorsum M. J. Athey 1970-11-15 2 Humboldt In front of house in Westhaven, along Havenway, Trinidad Comment
  HSC89508  Geranium retrorsum M. Roantree 1985-6-11 93 Humboldt E side of Trinidad Head Comment
  HSC18645  Geum macrophyllum E. W. Styskel 1963-5-19 37 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 305 Comment
  UC1197923  Gilia capitata subsp. pacifica Joseph P. Tracy 1925-5-24 7010 Humboldt Kneeland Prairie 762 Comment
  UC133647  Gilia capitata subsp. pacifica Joseph P. Tracy 1908-8-1 3068 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC907902  Gilia capitata subsp. pacifica Joseph P. Tracy 1948-9-25 18225 Humboldt Eureka Comment
  UC907967  Gilia capitata subsp. pacifica Joseph P. Tracy 1936-6-9 14894 Humboldt s of point of Cape Mendocino s of point Cape Mendocino (near ocean shore) 3 Comment
  CAS-BOT-BC225473  Gilia millefoliata D. E. Breedlove 1962-6-7 3041 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  UC146176  Gilia millefoliata Joseph P. Tracy 1905-6-11 2189 Humboldt sandy field at Bucksport Northern Coast Region, region about Humboldt Bay (region about Humboldt Bay) 0 Comment
  HSC100594  Gilia squarrosa Carl C. Marshall Sep 1886 245 Humboldt Fields near Arcata. Comment
  HSC16986  Gilia tricolor J. E. Lankila 1962-5-6 26 Humboldt W bank of Eel River across from Shively, .25 mi. from Bear Creek Comment
  UC1197904  Gilia tricolor subsp. tricolor Joseph P. Tracy 1932-5-1 9857 Humboldt Redway 182 Comment
  HSC100935  Githopsis specularioides Miss Handy Jun 1886 344 Humboldt Maple Cr. Comment
  HSC17915  Glaux maritima Norman H. Moe 1962-5-17 Humboldt Lanphere's Place Comment
  HSC37857  Glaux maritima Peter Sorensen 1976-6-2 Humboldt Woodley Island Comment
  UC562469  Glaux maritima Joseph P. Tracy 1926-8-29 7780 Humboldt around Humboldt Bay (Northern Coast Region, Mad River Slough); Northern Coast Region, Mad River Slough 3 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
  HSC96582  Glyceria elata Gordon Leppig, Tony LaBanca 2005-6-6 2247 Humboldt Pacific Lumber Co. land, Redwood House Rd., Hely Creek headwaters pond. 630 Comment
  UC187286  Glyceria elata Joseph P. Tracy 1911-7-7 3372 Humboldt 3 mi nw Willow Creek junction with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UCD85114  Glyceria elata Harley P. Chandler 1901-6-1 1526 Humboldt North Coast Ranges. Klamath River. 426 Comment
  HSC98131  Glyceria striata Cara Witte 2007-6-27 376 Humboldt Forest Service Road 6N08. Friday Ridge Road. Approximately 2 miles south of intersection with 5N09. 1474 Comment
  CAS-BOT-BC302533  Gnaphalium palustre Joseph P. Tracy 1932-7-13 10513 Humboldt Trinity Summit. Open places at Corral Prairie 1584 Comment
  CAS-BOT-BC302540  Gnaphalium palustre Harold E. Parks 1937-7-1 24046 Humboldt Spruce Cove, Trinidad Comment
  HSC98114  Gnaphalium palustre Cara Witte 2007-6-21 338 Humboldt White Oak Opening. Along Kinsey Ridge. 1259 Comment
  UC1408980  Gnaphalium palustre Robert F. Thorne and P. Everett 1965-8-7 35227 Humboldt Samoa Peninsula 3 Comment
  HSC100433  Gnaphalium sprengelii Carl C. Marshall Sep 1887 440 Humboldt Coast region. Comment
  CDA6062  Gnaphalium stramineum T. C. Fuller 1961-9-28 7059 Humboldt 1.5 miles south of Samoa. 0 Comment
  HSC39939  Goodyera oblongifolia Linda M. Barker 1976-8-24 1679 Humboldt 3 mi. W of Arcata Comment
  HSC99539  Goodyera oblongifolia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 204 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1196435  Goodyera oblongifolia Joseph P. Tracy 1934-8-31 13642 Humboldt Kneeland Prairie 762 Comment
  UC179961  Goodyera oblongifolia Joseph P. Tracy 1914-9-6 4624 Humboldt between High Prairie and Snow Camp (Northern Coast Ranges, Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  UC582588  Gratiola ebracteata Joseph P. Tracy 1930-5-18 8697 Humboldt Rohnerville 152 Comment
  CAS-BOT-BC304759  Grindelia hirsutula Roxana S. Ferris 1937-8-21 9388 Humboldt Shelter Cove Comment
  HSC12338  Grindelia hirsutula Steve Dorei 1970-10-26 116 Humboldt Arcata, on South G St. near curve Comment
  HSC39110  Grindelia hirsutula Gary S. Lester 1974-8-24 528 Humboldt Arcata salt marsh on Humboldt Bay at the 'G' St. oxidation plant 1 Comment
  JEPS41866  Grindelia hirsutula Joseph P. Tracy 1918-7-1 4976 Humboldt 3 mi s of the point of Cape Mendocino (near ocean shore, following up ravines) 152 Comment
  RSA125369  Grindelia hirsutula Peter H. Raven, Richard Snow 1958-7-21 13659 Humboldt Cape Mendocino Comment
  UC581777  Grindelia hirsutula Joseph P. Tracy 1930-7-5 8831 Humboldt sw slopes fronting the ocean 3 mi s of point of Cape Mendocino Cape Mendocino (on hillsides up to 500 ft elevation) 30 Comment
  SEINET10724140  Grindelia hirsutula Harold E. Parks Parks 24190 Humboldt Gravel near water, Big Lagoon. Comment
  CDA6159  Grindelia stricta var. platyphylla T. C. Fuller 1958-6-17 1719 Humboldt Maritime bluff above Oceanhouse, Cape Mendocino. 0 Comment
  RSA509497  Grindelia stricta var. stricta R. D. Goeden 1987-9-2 21 Humboldt Cape Mendocino (Cape Ridge) on bank above Mattole Rd. 183 Comment
  HSC56354  Hackelia bella Griswold, Butler 1979-7-10 6325 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  RSA167310  Hackelia californica Joseph P. Tracy 1948-8-15 18154 Humboldt Trinity Summit, on ridge 2 miles east of Grove s Prairie. 1524 Comment
  UC630631  Hedera helix Joseph P. Tracy 1939-10-15 16519 Humboldt Van Duzen River Blue Slide; , Blue Slide 91 Comment
  HSC58345  Helenium bigelovii Overton, Butler 1979-8-2 12673 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC175963  Helenium bolanderi Joseph P. Tracy 1912-7-24 3808 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  POM203674  Helenium bolanderi I. L. Wiggins 1932-7-19 5891 Humboldt 1.5 miles N of Trinidad Head. Comment
  HSC25071  Heliotropium curassavicum var. oculatum R. W. Becking 1970-10-3 Humboldt Stone Lagoon near Orick Comment
  RSA11161  Hemizonia congesta C. B. Wolf 1927-8-29 1218 Humboldt Devils' Gate, S of Cape Mendocino Comment
  CAS-BOT-BC309995  Hemizonia congesta subsp. tracyi Carl B. Wolf 1937-6-14 8813 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  HSC32921  Hemizonia congesta subsp. tracyi Thomas W. Nelson, James Nelson 1973-5-28 967 Humboldt McKeown Ranch N of Dinsmore Comment
  RSA388122  Hemizonia congesta subsp. tracyi C. B. Wolf 1937-6-14 8813 Humboldt North Coast Range, Kneeland Prairie 823 Comment
  UC176756 Image available Hemizonia congesta subsp. tracyi J. P. Tracy 1908-7-30 2754 Humboldt opposite Buck Mountain; valley of Van Duzen River; valley of Van Duzen River opposite Buck Mt., Humboldt Co. 762 Comment
  SEINET7887160 Image available Hemizonia congesta subsp. tracyi S. K. Harris 1936-1 699 Humboldt above Van Duzen River about 1 mile west of Bridgeville Comment
  UC1197368  Heracleum lanatum Joseph P. Tracy 1948-9-12 18217 Humboldt meadow at Box Camp Trinity Summit; , Box Camp 1463 Comment
  SDSU2260  Heracleum lanatum D. F. Howe 1962-5-22 3301 Humboldt 0.5 mile north of Orick on #101. 30 Comment
  UC642335  Heracleum lanatum Joseph P. Tracy 1934-7-27 13491 Humboldt near mouth Mad River 15 Comment
  UC275454  Hesperevax acaulis var. robustior Joseph P. Tracy 1925-5-17 6982 Humboldt near s fork Trinity River; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC45914  Hesperocyparis macrocarpa Jerome Peterson 1978-4-16 3 Humboldt HSU Campus Comment
  JEPS32319  Hesperolinon micranthum W. L. Jepson 1902-6 1976 Humboldt Three Creeks to Willow Creek (on expedition from Ukiah to the Hupa Indian Reservation) Comment
  SEINET10460663  Heterocodon rariflorum Tracy TRACY 3329 Humboldt WILLOW CR. Comment
  UC1222321  Heteromeles arbutifolia Joseph P. Tracy 1950-9-22 19380 Humboldt about 3 mi sw Orleans (above Bluff Creek) Comment
  CAS-BOT-BC311055  Heterotheca oregona var. oregona Joseph P. Tracy 1933-10-15 13097 Humboldt Miranda, along South Fork of Eel River 121 Comment
  UC202750  Heterotheca oregona var. rudis Chesnut and Drew 1888-7-21 Humboldt S. Fork Mt. Comment
  CAS-BOT-BC312392  Hieracium albiflorum Doris K. Kildale 1925-8-17 1196 Humboldt Triity Summit 1828 Comment
  UC165198  Hieracium scouleri Joseph P. Tracy 1908-7-1 2891 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges 914 Comment
  POM311256  Hierochloe occidentalis Keith C. Hughes 1961-2-3 327 Humboldt Richardson Grove State Park; Coast Ranges Mt. Range 137 Comment
  UC167083  Hierochloe occidentalis Joseph Burtt Davy 1899-6-11 5424 Humboldt Elk Prairie Comment
  JEPS45722  Hippuris vulgaris W. L. Jepson 1921-8-7 9335 Humboldt Stone Lagoon Comment
  HSC36309  Hippuris vulgaris David Sohrakoff 1972-11-12 1 Humboldt Clam Beach ponds Comment
  UC198615  Hippuris vulgaris Joseph P. Tracy 1917-5-30 4807 Humboldt near mouth of Little R.; Northern Coast Ranges 6 Comment
  HSC10134  Holcus lanatus R. D. Zortman 1963-4-14 27 Humboldt 5.0 mi. NE of Arcata, off Warren Creek Road. 91 Comment
  HSC10142  Holcus lanatus R. I. Bonn 1965-5-9 50 Humboldt 4 miles W of Arcata on Lanphere Rd. Comment
  HSC57957  Holodiscus discolor G. L. Clifton, Griswold 1979-7-31 11651 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  RSA698661  Holodiscus discolor J. R. Bruff 1937-8-17 933 Humboldt Richardson Grove. Comment
  UC50691  Hordeum brachyantherum subsp. brachyantherum Joseph Burtt Davy and Walter C. Blasdale 1899-6-17 5606 Humboldt Arcata Arcata (North-Western California) Comment
  CAS-BOT-BC284691  Hordeum jubatum Joseph P. Tracy 1927-7-16 8249 Humboldt Northern Coast Region. Around Humboldt Bay. Mouth of Elk River 3 Comment
  UC552789  Hordeum marinum subsp. gussoneanum Joseph P. Tracy 1935-5-25 13866 Humboldt Fort Seward 106 Comment
  CAS-BOT-BC289563  Hordeum marinum subsp. gussoneanum David D. Keck 1948-7-2 6001 Humboldt Ridge east of Redwood Creek on road to Willow Creek on US route 299 Comment
  HSC104057  Hordeum murinum C. Reynolds 2015-4-28 41 Humboldt Along trail through Arcata Marsh, near Interpretive Center 5 Comment
  CAS-BOT-BC144081  Horkelia sericata Harley P. Chandler 1901-6-1 1543 Humboldt Klamath RIver 426 Comment
  UC1565797  Horkelia tridentata subsp. flavescens R. Spellenberg 1990-7-10 10239 Humboldt 11 air mi e Burnt Ranch (Buck Flat, at junction of USFS Rd. 5N01 and USFS Rd. 1, 12 mi s of Berry Summit (on Hwy 299)); extreme e edge of county 1432 Comment
  HSC44374  Hosackia crassifolia Thomas W. Nelson, Jane P. Nelson 1977-7-4 3614 Humboldt Along road N of Alder Springs. 1524 Comment
  HSC40128  Hosackia oblongifolia var. oblongifolia Thomas W. Nelson, James Nelson 1976-7-28 3077 Humboldt Beside rd. to Pine Mtn. 1524 Comment
  HSC64261  Hydrophyllum fendleri var. albifrons J. O. Sawyer, M. A. Ericksen 1979-6-23 3395 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC32886  Hydrophyllum occidentale Thomas W. Nelson 1973-5-30 971 Humboldt Humboldt/Trinity Co. line, Mt. Lassic 1790 Comment
  JEPS1634  Hydrophyllum tenuipes Joseph P. Tracy 1918-4-28 4892 Humboldt Eureka; Northern Coast Ranges 0 Comment
  JEPS1642  Hydrophyllum tenuipes W. L. Jepson 1934-5-7 16691 Humboldt Bull Creek Comment
  UC177201  Hydrophyllum tenuipes Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3617 Humboldt near Hydesville; Northern Coast Region 30 Comment
  UC659503  Hydrophyllum tenuipes Lincoln Constance, Alan A. Beetle 1940-5-16 2611 Humboldt 5 mi e Carlotta; Valley of Van Duzen River 30 Comment
  JEPS66833  Hypericum perforatum Lincoln Constance 1934-5-26 677 Humboldt w. end of Dyerville Bridge; S. Fork Eel R., Bull Creek Region 45 Comment
  UC1198402  Hypericum perforatum Joseph P. Tracy 1933-7-3 12640 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UC420746  Hypericum perforatum Harley P. Chandler June, 1901 1493 Humboldt Klamath R. North Coast Ranges, Klamath R. 426 Comment
  RSA46497  Hypericum perforatum Doris K. Kildale 1925-6-29 932 Humboldt Van Duzen R. near Alton Comment
  SDSU6911  Hypericum perforatum D. F Howe 1961-8-2 3118 Humboldt 10.5 miles east of Orick on Bald Mt.road, humboldt, Co. 762 Comment
  UC1223074  Hypochaeris glabra Joseph P. Tracy 1948-5-31 18020 Humboldt Dobbyn Creek 152 Comment
  SEINET11855591  Hypochaeris glabra J. P. Tracy 1948-5-31 18020 Humboldt William Perry place, Dobbyn Creek 152 Comment
  HSC57319  Hypochaeris radicata Griswold, Butler 1979-7-10 6345 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  CAS-BOT-BC206840  Iliamna latibracteata Joseph P. Tracy 1938-8-14 16104 Humboldt Willow Creek Canyon, along Trinity Highway 762 Comment
  HSC99523  Iliamna latibracteata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 186 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS67376 Image available Iliamna latibracteata Joseph P. Tracy 1926-6-12 7585 Humboldt Prairie Creek Northern Coast Ranges. 152 Comment
  OBI5958  Iliamna latibracteata Carl B. Wolf 1931-8-28 2367 Humboldt Redwood hwy, 3 mi N of Orick, (Davidson's Ranch on Prairie Crk) 61 Comment
  RSA170251  Iliamna latibracteata Joseph P. Tracy 1949-9-1 18525 Humboldt Willow Creek Canyon, along Trinity Hwy 762 Comment
  UC1173717 Image available Iliamna latibracteata Joseph P. Tracy 1939-7-23 16350 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
Read comments
Feb 27 2012
  SEINET4170668  Iris W. W. Eggleston 1913-6-8 6 Humboldt Calaveras Ranger Station. 1000 Comment
  RSA49981  Iris chrysophylla E. L. Nelson 1949-1 s.n. Humboldt Originally collected at Weitchpec, CA on hot dry open slopes along road. Comment
  HSC13868  Iris douglasiana K. P. St. John 1965-4-3 9 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  UC1196394  Iris douglasiana Joseph P. Tracy 1934-8-31 13644 Humboldt Kneeland Prairie 762 Comment
  UC615044  Iris douglasiana Beryl O. Schreiber 1934-6-5 1134 Humboldt 15 mi e Blue Lake (road to Redding) Comment
  HSC89546  Iris douglasiana M. Roantree 1985-5-24 63 Humboldt E side of Trinidad Head Comment
  JEPS17241  Iris douglasiana Lincoln Constance 1934-5-31 763 Humboldt from w boundary of park to Grasshopper Pk. (Squaw Cr.) (Bull Creek flat, along Bull Creek, n side of creek); South Fork Eel River, Bull Creek Region Comment
  RSA135866  Iris douglasiana Lee W. Lenz, E. K. Balls 1951-5-4 16422 Humboldt Between Ben Johnson and Russ Grove, just south of Del Norte County line, Highway 101 Comment
  SEINET12049821  Iris douglasiana F. H. Utech 1986-1 86 -395 Humboldt ca 5 mi N on Kings Peak Rd, from junction with Shelter Cove Rd, near Tolkan Recreation Area 480 Comment
  UC667107  Iris macrosiphon Joseph P. Tracy 1932-7-17 10662 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  RSA135818  Iris purdyi E. K. Balls 1957-5-26 22607 Humboldt 0.3 miles northeast of Harris on road to Alder Point 762 Comment
  SD90234  Iris purdyi Benjamin C. Stone 1952-6-23 142 Humboldt Dense redwood forest in Humboldt Redwoods State Park. Comment
  JEPS88855  Iris tenax subsp. klamathensis Carol A. Wilson 1992-5-15 92 -ph20 Humboldt just s Orleans (along Icesee Road from where it leaves Hwy 96 to top of hill) Comment
  HSC44339  Iris tenuissima Brad W. Klipfel 1975-6-17 683 Humboldt Horse Mtn. Comment
  UC1152073  Isolepis carinata Joseph P. Tracy 1948-5-31 17982 Humboldt 1/2 mi ne Garberville (on the road to Harris); ne of Garberville Comment
  CAS-BOT-BC112455  Isolepis cernua Joseph Prince Tracy 1938-6-16 15942 Humboldt Wet slopes within reach of ocean spray, Trinidad. 3 Comment
  HSC96497  Isolepis setacea Gordon Leppig 1998-6-8 802 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  CAS-BOT-BC340153  Jaumea carnosa C. C. Harris; S. K. Harris 1939-8-26 s.n. Humboldt South shore of Humboldt Bay Comment
  RSA181881  Jaumea carnosa Joseph P. Tracy 1938-7-15 16072 Humboldt Mouth of Eel River. 3 Comment
  UC1220310  Jaumea carnosa D. E. Anderson 1963-9-15 2812 Humboldt salt marsh bordering Humboldt Bay Comment
  RSA168844  Juncus articulatus Joseph P. Tracy 1938-8-14 16114 Humboldt Hillside west of mouth of South Fork. Trinity River Valley , near the South Fork 183 Comment
  SEINET11788605  Juncus articulatus J. P. Tracy 1938-1 16114 Humboldt W of mouth of South Fork, Trinity River Valley, near South Fork 183 Comment
  UC249817  Juncus bolanderi Joseph P. Tracy 1924-7-13 6730 Humboldt Big Lagoon 6 Comment
  HSC38832  Juncus bolanderi R. Sutherland 1976-8-13 813876 Humboldt Whittemaore Grove at edge of forest 213 Comment
  HSC96355  Juncus bolanderi Gordon Leppig 1998-8-23 1070 Humboldt Big Lagoon Bog in standing water 1 Comment
  BLMAR417  Juncus breweri Jennifer Wheeler 2007-8-29 417 Humboldt South Spit, growing on east side near bay 9 Comment
  UCD141361  Juncus bufonius Linda M. Barker 1976-6-1 1551 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC69861  Juncus covillei Thomas W. Nelson, Ken Hindley 1978-5-28 4084 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  HSC98649  Juncus ensifolius Cara Witte 2007-7-3 419 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. 1/2 mile east from intersection with National Forest 1. 1397 Comment
  UC1103054  Juncus hesperius Joseph P. Tracy 1901-7-29 1229 Humboldt Eureka Northern Coast Region 0 Comment
  UC421740  Juncus hesperius Henry Melde 1902-2-8 Humboldt Eureka Comment
  UCD150386  Juncus hesperius William Anderson and H. Mc. 1964-8-6 s.n. Humboldt Little River. Comment
  HSC63849  Juncus laccatus M. A. Baker 1979-6-27 918 Humboldt Comment
  HSC38189  Juncus lescurii Peter Sorensen 1976-7-14 Humboldt N spit Comment
  HSC45545  Juncus lescurii J. P. Smith 1971-10-6 4975 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC90686  Juncus lescurii Gail Newton 1982-5-31 3553 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC14030  Juncus lescurii David Adams 1960-7-10 Humboldt W of Mad River Slough 0 Comment
  UC421840  Juncus mertensianus Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5787 Humboldt Trinity Summit North Coast Ranges Comment
  HSC102629  Juncus mexicanus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1614 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC102072  Juncus nevadensis var. nevadensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 974 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC1151998  Juncus occidentalis Joseph P. Tracy 1930-7-17 8981 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC183658  Juncus occidentalis Joseph P. Tracy 1912-7-21 3788 Humboldt Alton Northern Coast Ranges 30 Comment
  UC1222344  Juncus occidentalis Joseph P. Tracy 1953-6-26 19561 Humboldt halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road) Comment
  JEPS11137  Keckiella corymbosa W. L. Jepson 1936-8-8 17864 Humboldt Hartsook; South Fork Eel River Comment
  RSA167236  Keckiella corymbosa Joseph P. Tracy 1950-8-20 19315 Humboldt On rock ledges at Ishi-pishi Falls west side of Klamath River opposite mouth of Salmon River. Comment
  UC213144  Keckiella corymbosa Joseph P. Tracy 1920-8-15 5360 Humboldt Bluff Creek; Northern Coast Ranges, Klamath River 152 Comment
  UC566682  Keckiella corymbosa H. L. Mason 1928-7-14 4900 Humboldt near Garberville; East Fork of the Eel River Comment
  UC213499  Keckiella lemmonii Joseph P. Tracy 1920-8-15 5352 Humboldt mouth of Slate Creek (Klamath River); Northern Coast Ranges 152 Comment
  HSC56266  Kelloggia galioides G. L. Clifton, Griswold 1979-8-2 12425 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  JEPS12480  Kelloggia galioides Joseph P. Tracy 1930-7-19 9081 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC602548  Kelloggia galioides Joseph P. Tracy 1930-7-19 9081 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC61762  Kickxia spuria Ruby Van Deventer 1963-7-1 Humboldt Along the Klamath River at Pecwan, 1 mi. above Pecwan, upper road Comment
  HSC73476  Koeleria macrantha Gail Newton 1980-7-11 1338 Humboldt Near Red Mtn. 1341 Comment
  UC50518  Koeleria macrantha Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5771 Humboldt Trinity Summit Comment
  CAS-BOT-BC273597  Koeleria pyramidata Harley P. Chandler 1901-6-1 1342 Humboldt North Coast Ranges. Hupa Indian Reservation 304 Comment
  UC1196122  Kopsiopsis strobilacea Road Maintenace Crew May 1943 Humboldt Willow Creek Canyon on Trinity Highway. 762 Comment
  CAS-BOT-BC499192  Kopsiopsis strobilacea C. D. Duncan 1920-9-27 s.n. Humboldt Supply Creek Canyon Comment
  UC1199393  Kyhosia bolanderi Joseph P. Tracy 1932-7-16 10613 Humboldt Corral Prairie; Trinity summit 1584 Comment
  UC1051587  Lactuca serriola Joseph P. Tracy 1943-11-28 17461 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  UC127613  Lagophylla ramosissima Harley P. Chandler 1901-6-1 1467 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  UCR122362  Lapsana communis George K. Helmkamp, E. A. Helmkamp 2001-7-8 6990 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  UC302193  Lapsana communis Joseph P. Tracy 1926-6-6 7553 Humboldt Bair's on Redwood Creek Northern Coast Ranges, Redwood Creek 304 Comment
  UC129576  Lasthenia californica subsp. californica Harley P. Chandler May 1901 1260 Humboldt Redwood belt; Coast Ranges 152 Comment
  UCD107019  Lathyrus cicera Joseph P. Tracy 1942-6-15 17133 Humboldt at Englewood near Redcrest resort. 91 Comment
  UC931200  Lathyrus lanszwertii var. tracyi C. L. Hitchcock 1949-6-8 19086 Humboldt 3 mi se Willow Creek (along Highway 299) Comment
  HSC71466  Lathyrus nevadensis var. nevadensis J. P. Smith, J. O. Sawyer 1973-5-12 6701 Humboldt 9.6 mi. from Redwood Creek on Hoopa Rd. Comment
  UC249527  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1922-5-29 6062 Humboldt South Yager Creek Valley Northern Coast Ranges 762 Comment
  CAS-BOT-BC205039  Lathyrus palustris Charlotte M. Hoak 1931-7-15 s.n. Humboldt Big Lagoon Comment
  HSC95147  Lathyrus palustris Gordon Leppig 2003-7-18 2008 Humboldt Eureka, Marsh N of Elk River Slough 2 Comment
  UC1199080  Lathyrus palustris Joseph P. Tracy 1938-7-6 16020 Humboldt Big Lagoon 6 Comment
  HSC39197  Lathyrus torreyi D. E. Anderson, J. P. Smith 1971-7-6 - 1328 Humboldt 1.0 mi. W of Pine Ridge Summit, 6 mi. E of junction with Redwood Valley Rd. Comment
  NY73892  Lathyrus torreyi H. N. Bolander 1866-1 6506 Humboldt Thickets near the coast Comment
  SEINET956250  Lathyrus torreyi Joseph P. Tracy 1921-1 5478 Humboldt South fork of Esl River, near Myers, in open places in wood. 61 Comment
  UC1222403  Lathyrus torreyi Joseph P. Tracy 1942-6-28 17272 Humboldt e of Korbel (on Murphy Ridge beyond the meadows); Bald Mountain, Murphy Ridge Comment
  HSC23072  Lathyrus tracyi Richard Spjut 1971-5-7 1859 Humboldt 2-4 mi. up Three creeks Rd., W of Willow Creek 457 Comment
  UC1199071  Lathyrus vestitus Joseph P. Tracy 1901-6-2 1120 Humboldt immediate vicinity Eureka 0 Comment
  JEPS46259  Lathyrus vestitus var. ochropetalus W. L. Jepson 1934-5-7 16687 Humboldt Dyerville Comment
  HSC59481  Layia carnosa M. A. Ericksen 1979-4-29 244 Humboldt 0.4 mi. N of Coast Guard Station, Samoa Peninsula. Comment
  UC153946  Layia carnosa Joseph P. Tracy 1910-4-24 3121 Humboldt Humboldt Bay Comment
  RSA0008478  Layia carnosa Joseph P. Tracy 1946-6-2 17555 Humboldt Fairhaven, in sand dunes of the Samoa Peninsula Comment
  UC314632  Ledum glandulosum Joseph P. Tracy 1924-7-13 6728 Humboldt Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  CHSC52000  Leontodon saxatilis subsp. saxatilis J. P. Smith 1971-10-6 4966 Humboldt Dunes at the end of Murray Road in McKinleyville. Comment
  HSC26268  Lepidium campestre Thomas W. Nelson 1971-5-31 446 Humboldt Beside Hwy. 36 at Dinsmore Comment
  UC1199163  Lepidium densiflorum Joseph P. Tracy 1938-7-15 16066 Humboldt Mouth of Eel River 3 Comment
  CHSC42328  Leptosiphon androsaceus Victor Duran 1933-5-10 3403 Humboldt Near Blocksburg. Comment
  HSC17071  Leptosiphon androsaceus Victor Duran 1933-5-10 3403 Humboldt Near Blocksburg Comment
  HSC71061  Leptosiphon bicolor Thomas W. Nelson, Jane P. Nelson 1980-5-30 3395 Humboldt McKeown Ranch along rd. to Anderson's Ford 854 Comment
  CAS-BOT-BC226710  Leptosiphon latisectus M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  CAS-BOT-BC341823  Lessingia nemaclada Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Comment
  OBI28618  Lessingia nemaclada J. & B. Semple, B. Semple 1981-8-21 5692 Humboldt hwy 36, 4 mi S of Mad river park Comment
  UC1199275  Leucanthemum vulgare Joseph P. Tracy 1918-7-21 5080 Humboldt around Humboldt Bay; Humboldt Hill 152 Comment
  UC673159  Lewisia cotyledon var. heckneri Lincoln Constance and Reed C. Rollins 1942-5-12 2885 Humboldt 6 mi ne Weitchpec (mouth of Bluff Creek); Bluff Creek 152 Comment
  HSC102128  Lewisia triphylla M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1032 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC673016  Lewisia triphylla Joseph P. Tracy 1932-7-10 10376 Humboldt open places at Corral Prairie Trinity Summit 1584 Comment
  HSC97936  Lewisia triphylla Cara Witte 2007-5-31 145 Humboldt Off National Forest 1. Near Board Camp Mountain. Approximately 4 miles south of Brays Opening and 1/2 mile west of road. 1510 Comment
  RSA273333  Lewisia triphylla Thomas W. Nelson, Jane P. Nelson 1976-6-15 2725 Humboldt [Unspecified] 1585 Comment
  CDA32455  Leymus X vancouverensis B. F. Kemp 1958-6-13 Humboldt Along Creek Bottom, Eureka (Nielson & Son) 0 Comment
  RSA34294  Leymus mollis subsp. mollis J. Wendell Howe 1933-5-23 s.n. Humboldt Somoa Comment
  UC1197174  Ligusticum apiifolium Joseph P. Tracy 1930-7-6 8851 Humboldt at crossing of the Iaqua to yager rd. North Yager Creek 396 Comment
  HSC44546  Ligusticum californicum Brad Klipfel 1973-7-15 165 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC642267  Ligusticum californicum Joseph P. Tracy 1937-8-12 15633 Humboldt Snow Camp 1402 Comment
  HSC56059  Ligusticum grayi G. L. Clifton, Terry Griswold 1979-7-31 11695 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CAS-BOT-BC508405  Lilium columbianum A. M. Vollmer; L. Beane 1951-7-1 s.n. Humboldt A few miles north of Arcata, near U.S. Highway 101 Comment
  CAS-BOT-BC130633  Lilium kelloggii A. M. Vollmer; L. Beane 1951-7-1 173 Humboldt Freshwater, about 4-5 miles northeast of Eureka Comment
  CAS-BOT-BC130640  Lilium kelloggii A. M. Vollmer; L. Beane 1953-7-1 117 Humboldt Freshwater Comment
  HSC15574  Lilium kelloggii D. G. Hauger 1967-7-15 12 Humboldt Kneeland Rd, 0.25 mi. from Kneeland Post office Comment
  UC666959  Lilium occidentale Joseph P. Tracy 1927-9-25 8377 Humboldt 2 mi s Field's Landing (at Still's Ranch) 6 Comment
  UC1198237  Lilium pardalinum Joseph P. Tracy 1908-6 2868 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  HSC56955  Lilium pardalinum subsp. pardalinum Overton, Butler 1979-7-23 9465 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  SBBG1042  Lilium rubescens H. and M. Dearing 1939-6-27 3730 Humboldt Van Duzen River near Dinsmore Comment
  UC1198230  Lilium rubescens Joseph P. Tracy 1914-9-6 4616 Humboldt Bald Mountain Northern Coast Ranges (between High Prairie and Snow Camp) 1066 Comment
  CAS-BOT-BC506200  Lilium vollmeri Albert Vollmer 1949-7-1 2 Humboldt Bog on Bald Mountain 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
  UC615032  Lilium washingtonianum subsp. purpurascens Beryl O. Schreiber 1934-6-5 1142 Humboldt Gray's Resort; Redwood Creek Comment
  OBI12584  Limnanthes douglasii Carl B. Wolf 1937-6-14 8818 Humboldt North Coast Range, Kneeland Prairie 823 Comment
  BLMAR734  Limnanthes douglasii subsp. nivea Jennifer Wheeler 2015-4-28 734 Humboldt Larabee Butte, Roadside pasture at Butte Creek Access Rd 722 Comment
  RSA244966  Limonium californicum William J. Ferlatte, B. D. Rogers 1966-8-15 3126 Humboldt Near Arcata sewage pond. North Humboldt Bay. Comment
  UC146049  Linanthus androsaceus P. E. Goddard 1907-5-26 100 b Humboldt Van Duzen Comment
  UC702549  Linanthus androsaceus C. C. and S. K. Harris 1942-6-17 1272 Humboldt 1 mi n and 3 mi e Chalk 665 Comment
  HSC23114  Linum bienne Norman Dennis 1965-6-8 111 Humboldt 0.25 mi. S and 1 mi. E of junction of Barry Ridge Rd. and Eureka-Bridgeville county road, along Ashfield Ridge Rd., 5 mi. SE of Kneeland 793 Comment
  HSC59497  Linum bienne M. A. Ericksen 1979-5-23 304 Humboldt 880 Central Ave., McKinleyville. Comment
  HSC97615  Linum bienne Cara Witte 2007-6-4 192 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  JEPS8444  Listera caurina Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3415 Humboldt ridge between Mad River and Redwood Creek; Snow Camp, Bald Mountain ridge 1432 Comment
  HSC55134  Listera convallarioides G. L. Clifton, Griswold 1979-8-1 11972 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  JEPS37738  Lithocarpus densiflorus W. L. Jepson and W. W. Mott Jul 3 1903-Jul 5 1903 Humboldt Briceland; sw Humboldt County Comment
  JEPS38042  Lithocarpus densiflorus Lincoln Constance 1934-5-24 637 Humboldt forest bordering on e side Lower Look Prairie; South Fork Eel River, Bull Creek Region 121 Comment
  CAS-BOT-BC36107  Lithocarpus densiflorus var. densiflorus Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. Trail 762 Comment
  UC1196491  Lithophragma affine Harold E. Parks and Joseph P. Tracy 1942-5-16 11558 B Humboldt vicinity Garberville; vicinity of Garberville 152 Comment
  UC667095  Lithophragma affine Joseph P. Tracy 1933-5-14 12174 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  HSC73961  Lithophragma heterophyllum Gail Newton 1980-6-7 130 Humboldt Near Brush Mtn. 1128 Comment
  HSC44409  Lithospermum californicum R. York 1978-5-6 161 Humboldt Along Bluff Creek Rd., 4 mi. from Jct. with Hwy. 96 610 Comment
  CAS-BOT-BC283406  Lolium multiflorum A. A. Heller 1923-7-9 13779 Humboldt In a salt flat between Eureka and Arcata Comment
  HSC10312  Lolium perenne N. R. Waite 1965-5-19 43 Humboldt W edge of Humboldt State University campus. Comment
  HSC100392  Lomaria spicant Carl C. Marshall Apr 1885 116 Humboldt Damp woods. Comment
  HSC34919  Lomatium dissectum var. dissectum Thomas W. Nelson, James Nelson 1975-5-24 1855 Humboldt McKeown Ranch, N of Dinsmore. Comment
  RSA28899  Lomatium dissectum var. dissectum Lincoln Constance, A. A. Beetle 1940-5-17 2617 Humboldt NW slope, Lower slopes of Buck Mtn, near Eureka. 793 Comment
  UC1565807  Lomatium macrocarpum R. Spellenberg 1990-7-10 Humboldt 7.5 air mi. s.w. Salyer (on U.S.F.S. Rd. 6N08, on Friday Ridge 0.4 mi. n.e. of junction with U.S.F.S. Rd. 1, extreme e. edge county); Friday Ridge 1371 Comment
  HSC33054  Lomatium macrocarpum Thomas W. Nelson 1974-5-7 1233 Humboldt Beside airstrip at Kneeland Prairie Comment
  HSC44439  Lomatium tracyi Barbara Kelly 1978-5-1 589 Humboldt 1/4 mi. from Horse Mtn., road 1/2 mi. below turnoff to summit, near end of unused gravel road Comment
  UC1347206  Lomatium utriculatum Alice Eastwood and John Thomas Howell 1937-6-23 4767 Humboldt Dinsmore's Comment
  POM92405  Lonicera involucrata L. R. Abrams 1922-6-25 8246 Humboldt Near South Bay. Comment
  CAS-BOT-BC241492  Lonicera involucrata var. ledebourii L. R. Abrams 1922-6-25 8246 Humboldt Near South Bay Comment
  CHSC68491  Lonicera involucrata var. ledebourii Vernon H. Oswald 1997-4-10 8319 Humboldt Road paralleling Hwy 101 between Clam Beach and Little River State Beach, north of Arcata. 30 Comment
  HSC3928  Lonicera involucrata var. ledebourii D. B. Bader 1963-3-1 25 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101 Comment
  UC1239558  Lonicera involucrata var. ledebourii Joseph P. Tracy 1933-5-20 12219 Humboldt Capetown Bear River 30 Comment
  UC180196  Lonicera involucrata var. ledebourii Joseph P. Tracy 1914-7-12 4584 Humboldt near Hookton; Northern Coast Region, Humboldt Bay 0 Comment
  UCR270277  Lotus John F. Emmel 2003-7-30 1798 Humboldt North Coast Range, Redwood National Park, 16.6 road miles southeast of Hwy 101 on Bald Hills Road, c. 0.3-0.4 air mile west of Schoolhouse Peak 823 Comment
  CAS-BOT-BC200914  Lotus Milo S. Baker 1927-8-21 2468 a Humboldt Near Bald Mt. Comment
  CHSC68782  Lotus corniculatus Vernon Oswald 1997-6-5 8538 Humboldt Samoa Dunes Recreation Area at the south tip of the North Spit of Humboldt Bay. 6 Comment
  HSC39720  Lotus corniculatus D. E. Anderson, J. P. Smith 1971-6-28 - 1256 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC98072  Lotus crassifolius var. crassifolius Cara Witte 2007-7-12 520 Humboldt Along Forest Service Road 5N10. 1.25 miles south of intersection with 5N41. 1283 Comment
  HSC98247  Lotus formosissimus D. E. Anderson 1963-5-25 2485 Humboldt 2-3 mi. N of Capetown Comment
  SEINET3696853 Image available Lotus formosissimus Joseph P. Tracy 1935-6-8 13941 Humboldt Santa Clara Tract, just E of Eureka Comment
  UC33503  Lotus formosissimus Chesnut and Drew 1888-7-8 Humboldt near Campbell's Comment
  UC495724  Lotus humistratus Joseph P. Tracy 1929-4-28 8547 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC96219  Lotus humistratus M. Lindquist, C. Riley 2005-6-8 5 Humboldt 1.4 mi. S of Hwy. 299 on Titlow Hill Rd. 914 Comment
  JEPS19446  Lotus micranthus W. L. Jepson 1902-6 1900 Humboldt Ft. Seward Ranch Ridge (= Mail Ridge) Ft. Seward Ranch Ridge 1219 Comment
  SEINET12154222  Lotus nevadensis var. douglasii H. P. Chandler 1901-1 1487 Humboldt Klamath R 427 Comment
  UC33555  Lotus nevadensis var. nevadensis Chestnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  JEPS55780  Lotus purshianus var. purshianus Joseph P. Tracy 1923-6-17 6266 Humboldt Dows Prairie Northern Coast Ranges 60 Comment
  UC15500  Lotus purshianus var. purshianus Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5613 Humboldt Bald Mt. Comment
  UC303190  Lotus purshianus var. purshianus Joseph P. Tracy 1923-6-17 6271 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC162837  Lotus wrangelianus Joseph P. Tracy 1903-5-23 1901 Humboldt Alder Point, along Eel River Northern Coast Ranges, Eel River 152 Comment
  SD56747  Luina nardosmia Darley F. Howe 1963-5-26 3553 Humboldt 2.8 miles east of Orick on Bal Hill Road. 424 Comment
  CAS-BOT-BC201187  Lupinus David Keil 1983-7-2 17319 Humboldt Ca. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  UC170029  Lupinus affinis Joseph P. Tracy 1912-6-9 3678 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  SEINET12170729  Lupinus albifrons E. A. York 1990-1-10 2659 Humboldt USGS Redwood Field Station, Arcata Comment
  HSC98761  Lupinus albifrons var. collinus Cara Witte 2008-7-2 819 Humboldt Board Camp Mountain/ Tri Board Camp. Forest Service Road 4N38. 1577 Comment
  HSC14776  Lupinus arboreus S. J. Hawks 1965-5-18 84 Humboldt W of Arcata Airport. Comment
  HSC40963  Lupinus arboreus Linda M. Barker 1976-5-13 1472 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  HSC42162  Lupinus arboreus R. J. Mastrogiuseppe, J. D. Mastrogiuseppe 1974-9-3 178 Humboldt Clam Beach Comment
  HSC46963  Lupinus arboreus J. P. Smith, Thomas W. Nelson 1977-6-30 9218 Humboldt Samoa Peninsula just E of the drag strip. Comment
  HSC90219  Lupinus arboreus L. Watson, J. Meninga Aug 1990 7 Humboldt Near Manilla. Mad River Slough and Dunes. 30 yds. N of parking lot, W side of trail. Comment
  SD39025  Lupinus arboreus Edith A. Purer 1932-7-30 4682 Humboldt South of Orick, sand dunes Comment
  SEINET3132550  Lupinus arboreus J. W. Johnson 1961-9-3 1078 Humboldt Arcata, Samoa Peninsula. Christenson Farm Comment
  SEINET10488497  Lupinus arboreus Chester T. Dziekanowski, David B. Dunn; Charlene A. Bennett 1976-8-6 Dziekanowski 2501 Humboldt In the vicinity of a state park on the beach opposite mckinleyville. Vast Colony of yellow lupinus arboreus 3 Comment
  HSC14799  Lupinus bicolor Jerry Parker 1968-10-7 84 Humboldt Mckinleyville, at the foot of Murray Rd. Comment
  SEINET6932627  Lupinus bicolor Wanda P. Vestal, A. G. Vestal 1937-6-19 s.n. Humboldt Terrace west of Eel River, 2 miles west of Gaberville. Comment
  HSC48616  Lupinus latifolius Mark Flippo 1978-5-29 93 Humboldt MKinleyville, Bella Vista Rd. Comment
  RSA161252  Lupinus latifolius subsp. latifolius Peter H. Raven, R. Snow 1958-7-20 13645 Humboldt 1.1 miles south of junction of Friday Ridge Road on Titlow Hill Road, near Grouse Ridge. Comment
  UC162167  Lupinus latifolius var. latifolius Joseph P. Tracy 1909-8-1 3065 Humboldt Kneeland Prairie , Kneeland Prairie (Northern Coast Ranges) 762 Comment
  UC1223292  Lupinus latifolius var. viridifolius Joseph P. Tracy 1939-4-29 16252 Humboldt 2 mi below Orleans (nw side Klamath River); Klamath River, below Orleans 1219 Comment
  UC1299159  Lupinus lepidus var. lobbii Freed W. Hoffman 1949-7-16 2830 Humboldt in Mt. Lassic area on Pine Mountain (eastern Humboldt County); North Coast Ranges, Mt. Lassic area, Pine Mountain 1524 Comment
  CHSC921  Lupinus littoralis M. Underhill 1952-7-13 Humboldt Near coast. 0 Comment
  HSC95097  Lupinus littoralis Andrea Pickart 2002-7-3 151 Humboldt Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  UC198577  Lupinus littoralis Joseph P. Tracy 1917-5-26 4785 A Humboldt Bucksport Northern Coast Ranges, , Bucksport (Eureka) 0 Comment
  HSC79484  Lupinus rivularis Kenneth Clark 1980-3-1 503 Humboldt Dead Man's Gulch, Shelter Cove 21 Comment
  UC502995 Image available Lupinus tracyi Joseph P. Tracy 1932-7-15 10598 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit; Trinity summit, Humboldt Co. 1828 Comment
  UC1152142  Luzula cascadensis Joseph P. Tracy 1930-7-17 8972 Humboldt Near McKay Camp, South Fork Mountain 1676 Comment
  HSC56454  Luzula comosa Griswold, Butler 1979-7-12 7231 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC61636  Luzula comosa Ruby Van Deventer 1959-6-29 Humboldt Humboldt-Del Norte county line, Onion Lake 1220 Comment
  SEINET11790125  Luzula comosa J. P. Tracy 1951-1 19546 Humboldt Snow Camp Meadow Comment
  UCD142118  Luzula comosa Joseph P. Tracy 1930-7-17 8972 Humboldt South Fork Mountain; opening in fir forest nera McKay Camp. 1676 Comment
  UC1103682  Luzula comosa var. laxa Joseph P. Tracy 1924-4-27 6649 Humboldt Northern Coast Ranges: Near Berry's on Redwood Creek 365 Comment
  HSC99587  Luzula parviflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 252 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1103676  Luzula parviflora Joseph P. Tracy 1901-4-26 1050 Humboldt Humboldt Hill Northern Coast Region, region about Humboldt Bay 0 Comment
  HSC77926  Lycopodium clavatum L. P. Janeway 1984-3-14 715 Humboldt Arcata Community Forest, at edge of access road, NW-facing slope. 229 Comment
  SEINET3862856 Image available Lycopodium clavatum H. E. Parks, W. K. Parks 1932-7-30 01132 Humboldt Campp 21', Hammond Lumber Company, Trinidad.; 0 152 Comment
  HSC96513  Lysichiton americanus Gordon Leppig 1999-4-15 1114 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  SBBG25590  Lysichiton americanus E. R. Blakley 1966-8-17 6795 Humboldt Little Crk, Prairie Crk St Park, ca. 10 mi N of Orick 60 Comment
  SEINET10465778  Lysichiton americanus Sacks 1977-4-8 SACKS 5 Humboldt 0.2 mi W of Highway-101 and 5 mi. N of Trinidad 61 Comment
  RSA0015856  Lythrum hyssopifolia J. B. Feudge 1923-7-22 168 Humboldt Fortuna. 15 Comment
  UC89370  Madia elegans Harley P. Chandler June 1901 1409 Humboldt Klamath River 243 Comment
  CAS-BOT-BC342799  Madia elegans Richard Snow 1957-8-31 306 Humboldt 4 miles north of Garberville at Dean Creek Lodge Comment
  UC1093114  Madia elegans Richard Snow 1957-8-31 306 Humboldt 4 mi n of Garberville; Hayfield, Dean Creek Lodge Comment
  UC195538  Madia elegans Joseph P. Tracy 1908-6 2683 Humboldt near bridge across Little Van Duzen (nw slope of Buck Mountain); Northern Coast Ranges, Buck Mountain 762 Comment
  UC582407  Madia gracilis Joseph P. Tracy 1935-7-23 14132 Humboldt at Corral Prairie; Trinity Summit 1584 Comment
  JEPS40406  Madia gracilis W. L. Jepson 1903-6-29 2235 Humboldt Low Gap Comment
  RSA167396  Madia gracilis subsp. gracilis Joseph P. Tracy 1950-7-6 19026 Humboldt Sproston's Place, 3 miles south of Burr Valley 1067 Comment
  POM284946  Madia madioides Lyman Benson 1929-7-16 1868 Humboldt Weott Ranger Station. Comment
  CAS-BOT-BC508510  Maianthemum dilatatum O. Con Mary 1921-9-26 s.n. Humboldt Eureka Comment
  HSC15591  Maianthemum dilatatum W. F. Nickel 1965-5-15 Humboldt 0.5 mi. E of Arcata on rd. to Arcata Reservoir Comment
  HSC59443  Maianthemum dilatatum Kenneth Clark 1979-4-21 133 Humboldt By junction of Little River Rd. and Central Ave., McKinleyville Comment
  RSA24195  Maianthemum dilatatum Carl B. Wolf 1941-3-1 9978 Humboldt 4 miles northeast of Strongs Station (Van Duzen River) on Rd. to Yager 152 Comment
  RSA246767  Maianthemum dilatatum Robert F. Thorne, Percy C. Everett 1965-8-7 35178 Humboldt Big Lagoon. In bog at S end of lagoon. 2 Comment
  RSA376907  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
  SEINET8489258  Maianthemum dilatatum W. Roderick 1967-7-22 s.n. Humboldt Trinidad. 30 Comment
  HSC15641  Maianthemum racemosum subsp. amplexicaule Greg Bos 1965-5-15 281 Humboldt 4 mi. W of Berry Summit along Hwy. 299 671 Comment
  HSC40015  Malacothrix floccifera Thomas W. Nelson, Jane P. Nelson 1976-7-1 2916 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  HSC70360  Malacothrix floccifera Gail Newton 1980-6-7 141 Humboldt Near Brush Mtn. 1128 Comment
  UC565510  Malacothrix floccifera H. L. Mason 1928-7-14 4906 Humboldt near Garberville; East Fork of Eel River Comment
  CAS-BOT-BC347411  Malacothrix floccifera Joseph P. Tracy 1911-7-4 3278 Humboldt Northern Coast Ranges. Along Willow Creek. (Tributary of Trinity River, Humboldt County) near its mouth 152 Comment
  HSC37571  Marah oregana J. D. Ackerman 1975-6-10 451 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  HSC95547  Marah oregana Andrea Pickart 2002-5-26 112 Humboldt Lanphere Dunes, along dirt road to Lanphere Dune Office 0 Comment
  UC577418  Marrubium vulgare Joseph P. Tracy 1925-5-17 6973 Humboldt Trinity River Valley near the South Fork; Northern Coast Ranges, Trinity River Valley near South Fork 182 Comment
  UC162807  Medicago arabica J. P. Tracy 1907-5-10 2560 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC31809  Medicago lupulina Donald Spalinger 1974-4-25 23 Humboldt Forest across from 1756 Ridgewood Dr. 122 Comment
  UC160957  Medicago lupulina Harley P. Chandler June, 1901 1423 Humboldt Klamath River Northern Coast Ranges 304 Comment
  HSC45095  Medicago polymorpha R. Sutherland 1978-5-13 2 .13578 Humboldt 285 Comment
  RSA10132  Melica californica Joseph P. Tracy 1927-5-14 7999 Humboldt Trinity River Valley, near the South Fork. 183 Comment
  UC1145138  Melica californica Joseph P. Tracy 1943-5-9 17418 Humboldt Willow Creek Trinity River Valley (Trinity River Valley) 152 Comment
  RSA10102  Melica harfordii Joseph P. Tracy 1926-6-20 7651 Humboldt Horse Mountain. 1524 Comment
  UCD88643  Melica subulata A. H. Murphy 1951-5-15 s.n. Humboldt 3/4 mile south of South Fork on McCann Road. Comment
  SEINET10925519  Melica subulata Harley P. Chandler Chandler 1174 Humboldt 30 Comment
  HSC14998  Melilotus albus D. K. Smith 1968-2-2 5 Humboldt On the bank of Crannell Rd. past the bridge Comment
  HSC43242  Melilotus albus R. Sutherland 1976-8-6 11 .6876 Humboldt 229 Comment
  HSC15523  Melilotus indicus Jana Kattenhorn 1970-10-28 154 Humboldt Mad River at the mouth of Lindsey Creek, N Bank Rd. off Hwy. 299 Comment
  UC577385  Melissa officinalis Joseph P. Tracy 1925-8-16 7232 Humboldt near the South Fork Trinity River Valley (around farm); Northern Coast Ranges, Trinity River Valley 182 Comment
  RSA83450  Mentha canadensis F. W. Peirson 1926-7-12 7044 Humboldt Humboldt County: Orick Comment
  UC1225836  Mentha pulegium Joseph P. Tracy 1946-8-25 17642 Humboldt along Eel River Grizzly Bluff; Eel River 18 Comment
  UC577360  Mentha pulegium Joseph P. Tracy 1923-6-20 6336 Humboldt Briceland 304 Comment
  SEINET200817  Mentzelia laevicaulis Frank C. Gregory 1916-8-20 Humboldt Carlotta, Comment
  UC1197585  Menziesia ferruginea E. Ethel Tracy 1911-5-26 3189 Humboldt Patrick's Point; Northern Coast Ranges, Patrick's Point 60 Comment
  UC1223190  Micropus californicus var. californicus Joseph P. Tracy 1947-5-10 17681 Humboldt near Briceland Comment
  UC169333  Microseris bigelovii Joseph P. Tracy 1912-6-9 3673 Humboldt Alton Northern Coast Region 30 Comment
  UC582731  Microseris nutans Joseph P. Tracy 1932-7-11 10417 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1052478  Mimulus aurantiacus var. aurantiacus H. E. and S. T. Parks June 1951 Humboldt near landing, type locality Trinidad Comment
  HSC73737  Mimulus breweri M. A. Baker 1980-7-22 3092 Humboldt Near Grogan Hole. 1676 Comment
  SBBG15433  Mimulus dentatus H. and M. Dearing 1939-5-27 3453 Humboldt Russ Grove Redwoods Comment
  HSC20730  Mimulus guttatus J. R. Kahl 1962-5-11 28 Humboldt 2 mi. S of Trinidad along Hyw. 101 Comment
  UC582714  Mimulus inodorus Joseph P. Tracy 1935-7-23 14165 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  JEPS10789  Mimulus inodorus Joseph P. Tracy Jul 16 1930-Jul 19 1930 8983 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  SEINET200707  Mimulus kelloggii H. P. Chandler 1901-6-1 1480 Humboldt N Coast Ranges Klamath River 427 Comment
  UC1222804  Mimulus layneae Joseph P. Tracy 1950-7-1 18955 Humboldt Friday Ridge 1219 Comment
  UC582701  Mimulus microphyllus Joseph P. Tracy 1933-7-25 12855 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC56027  Mimulus moschatus G. L. Clifton, Griswold 1979-8-2 12209 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC99591  Mimulus moschatus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 260 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
  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
  JEPS10599  Mimulus pilosus Joseph P. Tracy 1925-11-1 7300 Humboldt Shively 60 Comment
  HSC43204  Mimulus pilosus R. Sutherland 1976-8-13 26 .13876 Humboldt In mouth of Redwood Creek at S Fork of Eel River 87 Comment
  HSC44508  Mimulus primuloides var. primuloides Brad Klipfel 1973-7-1 119 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1565790  Mimulus pulsiferae R. Spellenberg 1990-7-10 10252 Humboldt 1 mi w Horse Mountain (7.5 air mi sw of Willow Creek county road 7K100 4.5 mi s of Berry Summit (on CA Hwy 299), extreme e edge county) 1219 Comment
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Sep 10 2013
  UC1196782  Mimulus pulsiferae Joseph P. Tracy 1933-8-30 13029 Humboldt near Clear Lake; North Coast Ranges, Grouse Mountain 1524 Comment
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Sep 10 2013
  UC147905  Mimulus pulsiferae Joseph P. Tracy 1908-6 2698 Humboldt opposite Buck Mountain (along stream); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1103540  Minuartia californica Joseph P. Tracy 1920-5-20 6215 Humboldt dry slope towards Lawrence Creek; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC427871  Minuartia cismontana H. E. Parks and J. P. Tracy 1930-5-25 866 Humboldt Laribee Valley Comment
  CAS-BOT-BC388624  Minuartia douglasii Doris K. Kildale 1928-5-27 5954 Humboldt Kneeland Prairie 853 Comment
  CAS-BOT-BC388628  Minuartia douglasii Joseph P. Tracy 1941-6-15 16915 Humboldt Panther Gap, on the Bull Creek - Mattole Road 762 Comment
  BLMAR422  Minuartia douglasii Jennifer Wheeler May, 2007 422 Humboldt King range, Mill Creek, 914 Comment
  HSC36642  Minuartia nuttallii subsp. gregaria Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1899 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  UC492221  Mitella caulescens Joseph P. Tracy 1932-7-16 10634 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC902093  Mitella diversifolia Joseph P. Tracy 1942-6-23 17235 Humboldt along trail from Hoopa to summit (near Box Camp); Trinity Summit 1524 Comment
  UC1198870 Image available Mitella diversifolia Joseph P. Tracy 1935-7-22 14123 Humboldt near Forks of Tish-Tang-A-Tang Creek; Trinity Summit 1371 Comment
  UC1198864  Mitella ovalis Joseph P. Tracy 1906-5-6 2439 Humboldt near Hydesville; Northern Coast Region, Wolverton Gulch 60 Comment
  CAS-BOT-BC433067  Mitella trifida J. H. Thomas 1949-6-13 911 A Humboldt Between Le Perron Flat and Whitey's Peak, along trail. East of town of Orleans. 1371 Comment
  UCD63139  Moehringia macrophylla Heather Mehl 2008-4-15 s.n. Humboldt California. Humboldt County: Redwood National Park, 11 miles east of Hwy 101 on Bald Hills Road. 640 Comment
  CAS-BOT-BC435065  Mollugo verticillata Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  HSC76519  Monardella odoratissima D. K. Imper 1981-8-12 903 Humboldt Near Tish Tang A Tang Creek. 1780 Comment
  JEPS109950  Monardella odoratissima subsp. odoratissima Dean W. Taylor 2007-7-12 20164 Humboldt Pig Toe, along the Fruit Ranch road. 762 Comment
  HSC57877  Monardella odoratissima subsp. pallida Overton, Butler 1979-7-31 11413 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC32512  Monardella sheltonii Thomas W. Nelson 1973-9-3 1134 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC100506  Monardella villosa Carl C. Marshall Jun 1886 276 Humboldt Hoopa. Comment
  LA62385  Monardella villosa Carl Epling; William Robison 1935-7-25 sn Humboldt Dyerville Comment
  SEINET4173666 Image available Monardella villosa var. glabella Joseph P. Tracy 1946-7-21 17619 Humboldt Blue Slide, on Van Duzen River 91 Comment
  JEPS13817  Moneses uniflora Joseph P. Tracy 1926-5-22 7515 Humboldt Northern Coast Ranges, Prairie Creek Prairie Creek; Northern Coast Ranges, Prairie Creek 152 Comment
  HSC44611  Monotropa hypopitys R. York 1978-6-5 189 Humboldt 12 mi. up Waterman Ridge Rd. off of Hwy. 299. Bulk Collection 121 610 Comment
  HSC32127  Montia fontana D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5587 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC26877  Morella californica Clifton Raymond Chesbrough 1973-6-19 82 Humboldt 1/4 mi. W of the Samoa entrance to Samoa Bridge Comment
  HSC40948  Morella californica Linda M. Barker 1976-6-1 1542 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  CDA36322  Muehlenbeckia complexa R. Robison 2011-6-3 Humboldt Trinidad State Beach, across road from Humboldt State Marine Research Center. 0 Comment
  UC1103785  Muhlenbergia filiformis H. E. Parks and Joseph P. Tracy 1934-6-27 11083 Humboldt Grouse Mt. Northern Coast Ranges 1432 Comment
  UCD86803  Muhlenbergia mexicana Joseph P. Tracy 1916-9-5 4774 Humboldt South Fork of Eel River, 4 miles above the mouth. 60 Comment
  JEPS70788  Myosotis discolor Joseph P. Tracy 1936-5-17 14809 Humboldt Lawrence Creek at crossing of Kneeland Rd.; Lawrence Creek 457 Comment
  UC582561  Myosotis discolor Joseph P. Tracy 1937-5-17 15298 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  HSC91604  Myosotis latifolia E. Mackey 1987-3-18 Humboldt Patrick's Point State Park Comment
  HSC3727  Myosotis sylvatica Francis Winter 1960-4-30 Humboldt Samoa Peninsula, 6 mi. W of Arcata. Comment
  UC1196177  Myosurus minimus Mrs. Emma N. Cathey 1936-7 Humboldt near Miranda (Cathey Ranch); Cathey Ranch 304 Comment
  JEPS30071  Myrica californica Joseph P. Tracy 1930-5-18 8698 Humboldt Rohnerville Golf Course Northern Coast Ranges, Rohnerville Golf Course 152 Comment
  RSA46887  Myrica californica Doris K. Kildale 1926-6-18 2393 Humboldt Gold Bluffs. Comment
  UCD95019  Nassella R. Tofsrud 1948-9-1 s.n. Humboldt Near Horse Mt. junction on road from Sayler to Grouse Mt. 1219 Comment
  SEINET201033  Nassella pulchra Joseph P. Tracy 1927-5-8 7963 Humboldt Phillipsville. 122 Comment
  HSC12027  Nasturtium officinale D. Santana 1970-11-2 106 Humboldt E side of old Hwy. 1 in ditch Comment
  RSA43883  Navarretia atractyloides H. M. Pollard 1948-8-5 s.n. Humboldt Orleans Comment
  HSC73502  Navarretia capillaris Gail Newton 1980-7-11 1325 Humboldt Near Red Mtn. 1341 Comment
  HSC99059  Navarretia capillaris Cara Witte 2007-7-8 436 Humboldt Board Camp Mountain. Trail 4E28. 1498 Comment
  HSC75514  Navarretia divaricata J. O. Sawyer, R. J. Cole 1977-7-3 3012 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  UC908394  Navarretia divaricata subsp. vividior Joseph P. Tracy 1934-7-9 13326 Humboldt n of Bell Springs; Northern Coast Ranges, Chamise Mt. 1066 Comment
  JEPS70327  Navarretia intertexta Willis L. Jepson 1927-7-3 12367 Humboldt Miranda Station, s Humboldt Co. South Fork of the Eel River 228 Comment
  RSA15549  Navarretia mellita C. B. Wolf 1927-8-30 1250 Humboldt 3 miles S of Thorn3 miles S of Tom's Place Comment
  UC1198528  Navarretia squarrosa Joseph P. Tracy 1927-7-24 8293 Humboldt Upper Mattole 152 Comment
  JEPS70515  Navarretia viscidula Joseph P. Tracy 1927-7-24 8294 Humboldt Upper Mattole 152 Comment
  RSA114997  Nemophila menziesii var. atomaria E. K. Balls, Lee W. Lenz 1955-5-15 20740 Humboldt 13.5 miles southwest from Ferndale along Old Coast road to Capetown. 335 Comment
  POM73962  Nemophila menziesii var. atomaria Joseph P. Tracy 1906-5-6 2445 Humboldt Near Hydesville. 60 Comment
  CAS-BOT-BC231216  Nemophila parviflora var. austiniae Marck Menke 1999-5-31 32 Humboldt Redwood National Park, near Tall Trees Grove Comment
  JEPS1926  Nemophila pedunculata Joseph P. Tracy 1927-3-27 7858 Humboldt near South Fork Trinity River (Trinity River Valley); Northern Coast Ranges, nr South Fork Trinity River Valley 182 Comment
  UC1103812  Nemophila pedunculata Joseph P. Tracy 1923-2-25 6147 Humboldt Cummings Creek Northern Coast Ranges, , at Cummings Creek (Carlotta) 60 Comment
  HSC6968  Noccaea fendleri subsp. californica D. E. Anderson 1963-5-19 2465 Humboldt Comment
  HSC6971  Noccaea fendleri subsp. glauca Lincoln Constance, R. C. Rollins 1942-5-11 2877 Humboldt Hoopa Valley, 5 mi. S of Hoopa 122 Comment
  HSC99041  Noccaea montana subsp. montana Cara Witte 2008-7-1 777 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1462 Comment
  UC275320  Nuphar lutea subsp. polysepala Joseph P. Tracy 1923-6-27 6385 Humboldt Trinity River Valley near the South Fork, Lack Pond Lack Pond; Northern Coast Ranges, Trinity River Valley, Lack Pond 182 Comment
  HSC41451  Nuphar polysepala Charles Eugene 1975-11-23 751123 .1 Humboldt Sweasey Lake, 11 mi. NW of Mt. Lassic (Signal Peak) 884 Comment
  RSA178545  Oemleria cerasiformis Joseph P. Tracy 1950-4-20 18618 Humboldt Buck Mountain, lower foothills of its northwest slope. 2 miles west of Dinsmore's. 762 Comment
  UC154222  Oemleria cerasiformis Joseph P. Tracy 1909-6-13 2993 Humboldt near Blue Lake; Northern Coast Ranges, Mad River Valley 30 Comment
  UC666834  Oemleria cerasiformis Joseph P. Tracy 1937-4-3 15249 Humboldt Willow Creek; Trinity River Valley 152 Comment
  CHSC70154  Oenothera glazioviana David K. Imper 1993-6-15 Humboldt Base of sand dunes, south end of Manila, west of Eureka. 6 Comment
  HSC103084  Orobanche fasciculata Sydney Carothers 2014-6-22 3 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  JEPS14225  Orogenia fusiformis Joseph P. Tracy 1932-7-15 10595 Humboldt ridges e. of Corral Prairie Trinity Summit 1828 Comment
  HSC100092  Orthilia secunda Jimerson, J. Pageau 1979-6-12 538 Humboldt Near Hopkins Butte, close to the town of Orleans 1036 Comment
  UC32669  Orthilia secunda Chestnut and Drew 1888-7-21 Humboldt South Fork Mts. Comment
  UC582573  Orthocarpus imbricatus Joseph P. Tracy 1937-7-29 15571 Humboldt near McKay Camp South Fork Mountian (South Fork Mountain); South Fork Mountain 1676 Comment
  UC1197132  Osmorhiza occidentalis Joseph P. Tracy 1932-7-11 10420 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1222753  Osmorhiza occidentalis Joseph P. Tracy 1950-6-25 18887 Humboldt Burr Valley Buck Mountain (nw slope of mt.) 1066 Comment
  CHSC94937  Oxalis oregana K. Lang; J. Lang 2005-3-16 27 Humboldt Trinidad, No. California coast. 51 Comment
  CSUSB850  Oxalis oregana Keith Thompson 1972-3-27 Humboldt Maple Cr. 853 Comment
  JEPS43138  Oxalis oregana W. L. Jepson 1934-5-7 16696 Humboldt Bull Creek Comment
  SBBG25583  Oxalis oregana E. R. Blakley 1966-8-17 6794 Humboldt Little Crk, Prairie Crk St Park, ca. 10 mi N of Orick 60 Comment
  HSC69850  Oxalis oregana R. Kalal 1979-5-5 42 Humboldt Fickle Hill Rd., 1.0 mi. E of 11th St. 183 Comment
  SEINET3347146 Image available Oxalis suksdorfii Joseph P. Tracy 1930-6-22 8796 Humboldt Redwood Creek, at Berry's Comment
  UC275338  Oxalis trilliifolia Joseph P. Tracy 1923-6-24 6362 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC166076 Image available Packera bolanderi var. bolanderi Joseph P. Tracy 1911-6-4 3231 Humboldt 5 mi from The Coast (along Little River); Northern Coast Region, Little River 121 Comment
  RSA10048  Panicum miliaceum Joseph P. Tracy 1931-9-7 9639 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  JEPS15156  Parentucellia viscosa H. L. Person 1932-7-18 Humboldt Freshwater; Eureka Quad. Comment
  HSC72402  Parentucellia viscosa J. P. Smith 1973-5-26 6788 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  BLMAR697  Paxistima myrsinites Jennifer Wheeler 2011-5-24 697 Humboldt Lacks Creek, Pine Ridge/Stormy saddle road junction 975 Comment
  JEPS19071  Pellaea andromedifolia Lincoln Constance 1934-6-4 813 Humboldt S Fork Eel River; Bull Creek Region Comment
  JEPS60059  Pellaea andromedifolia Willis G. Corbitt 1933-4-9 Humboldt Scotia Bluffs Comment
  CAS-BOT-BC69339  Pellaea brachyptera Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC99109  Pellaea brachyptera Cara Witte 2008-6-13 714 Humboldt Forest Service Road 4N32. 1.4 miles north of intersection with Forest Service Road 4N32B. 1382 Comment
  HSC70977  Penstemon deustus Gail Newton 1980-7-22 1678 Humboldt Near Devils Backbone 1554 Comment
  JEPS11239  Penstemon deustus var. deustus Joseph P. Tracy 1935-7-28 14327 Humboldt Head of Devil's Hole Trinity Summit, Head of Devil's Hole 1828 Comment
  UC1222462  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1948-6-13 18052 Humboldt near Harris; near Harris 609 Comment
  JEPS28975  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1940-5-5 16543 Humboldt Garberville Garberville (on river bar) 152 Comment
  UC1586982  Penstemon laetus Juha Pykala and D. H. Norris 1987-6-11 1548 Humboldt ne Bee Mountain; Six Rivers National Forest, ne of Bee Mountain 609 Comment
  NY604545  Penstemon laetus var. sagittatus F. W. Pennell 1940-7-7 26094 Humboldt Grouse Mountain, west of Salyer 1463.0 Comment
  HSC63246  Penstemon newberryi var. berryi M. A. Baker 1979-6-27 932 Humboldt E of Oregon Creek Comment
  UC1586908  Penstemon parvulus Juha Pykala and D. H. Norris 1987-6-10 1523 Humboldt on Onion Lake Road about 1-2 mi s from Onion Lake; Six Rivers National Forest, s from Onion Lake 1280 Comment
  HSC56083  Penstemon procerus var. brachyanthus G. L. Clifton, Terry Griswold 1979-7-31 11771 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  NY638944  Penstemon procerus var. brachyanthus J. P. Tracy 1932-7-12 10480 Humboldt Trinity Summit. Head of Brett Hole 1828.8 Comment
  HSC55288  Penstemon purpusii Terry Griswold, Marvin Butler 1979-7-10 6231 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  UC146247  Penstemon rattanii Joseph P. Tracy 1906-6-10 2480 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC21103  Penstemon rattanii D. E. Anderson 1962-7-14 2268 Humboldt 0.25 mi. E of Arcata on Fickle Hill Rd. Comment
  SEINET5329314 Image available Penstemon rattanii J. Tracy 1906-6-10 2480 Humboldt Kneeland Prairie 762 Comment
  SD129743  Penstemon rattanii var. rattanii Harold E. Parks June 1951 Humboldt Kneeland, Camaron Hill Comment
  HSC1080  Pentagramma triangularis D. E. Anderson 1963-3-16 2389 Humboldt Scotia Bluffs Comment
  CHSC57403  Pentagramma triangularis subsp. triangularis L. P. Janeway 1984-5-6 757 Humboldt Above Ishi Pishi Road, 1/2 mi northeast of Orleans. 137 Comment
  CAS-BOT-BC71615  Pentagramma triangularis subsp. triangularis Henry M. Pollard 1946-9-7 s.n. Humboldt Woodson Mine, Orleans Mt. Comment
  UC562621  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1936-10-24 15204 Humboldt 2 mi s Fields Landing; Northern Coast Region, around Humboldt Bay 9 Comment
  UC642256  Perideridia howellii Joseph P. Tracy 1937-8-7 15615 Humboldt 1 mi n Murphy Meadow; Bald Mt. 914 Comment
  UC642305  Perideridia howellii Joseph P. Tracy 1939-9-4 16474 Humboldt Larrabee Valley; gully in foothills at edge of valley 731 Comment
  HSC35616  Perideridia oregana Thomas W. Nelson, B. Reinhardt 1975-7-30 2113 Humboldt E of Pilot Rock Comment
  UC1389995  Perideridia oregana T. I. Chuang and R. S. Mitchell 1965-6-30 6002 Humboldt Grouse Mountain; on Clear Lake Rd. Comment
  HSC56012  Perideridia parishii subsp. latifolia Gilbert Muth 1979-7-31 11495 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  HSC56308  Perideridia parishii subsp. latifolia Overton, Butler 1979-8-2 12627 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC330378  Petasites frigidus var. palmatus Doris K. Kildale 1926-3-26 1631 Humboldt Old Kneeland Road 609 Comment
  HSC6051  Petasites frigidus var. palmatus D. E. Anderson 1962-3-18 1942 Humboldt Jacoby Creek Comment
  RSA21605  Petasites palmatus C. B. Wolf 1937-9-14 9352 Humboldt North Coast Range, Lord Ellis Road, 7.6 miles east of Blue Lake. 213 Comment
  HSC13680  Phacelia bolanderi W. Lanphere 1937-5-25 Humboldt Dyerville Comment
  HSC65662  Phacelia bolanderi J. P. Smith, Steve Selva 1970-6-14 3821 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  POM287458  Phacelia bolanderi Lyman Benson 1929-7-16 1833 Humboldt Weott Ranger Station. Comment
  UC1586868  Phacelia bolanderi Juha Pykala and D. H. Norris 1987-6-10 1510 Humboldt on a road to Onion Lake about 18 mi from Highway 96; Six Rivers National Forest Comment
  HSC38488  Phacelia corymbosa D. E. Anderson, J. P. Smith 1976-7-6 - 1271 Humboldt Horse Mtn. Comment
  UC562581  Phacelia malvifolia Joseph P. Tracy 1927-6-8 8118 Humboldt Trinidad 3 Comment
  UC1199102  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1938-6-11 15891 Humboldt Table Bluff 91 Comment
  UC1199109  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3624 Humboldt near Hydesville; Northern Coast Region 30 Comment
  UC562568  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1935-5-25 13829 Humboldt Blocksburg 518 Comment
  UCD88758  Phalaris californica A. H. Murphy 1951-6-15 79 Humboldt 1 mile E of road junction Maple Creek and Kneeland Road, on Maple Creek Road. Comment
  CAS-BOT-BC76557  Philadelphus lewisii Joseph P. Tracy 1938-6-9 15872 Humboldt Dobbyin Creek 152 Comment
  JEPS49603  Philadelphus lewisii Joseph P. Tracy 1926-6-27 7696 Humboldt Horse Mountain Northern Coast Ranges 1066 Comment
  RSA0057782  Philadelphus lewisii Roxana S. Ferris 1955-7-11 12975 Humboldt Summit of U.S. Hwy 299 btwn. Willow Creek and Blue Lake. Comment
  SEINET12219858  Philadelphus lewisii subsp. californicus L. K. Henry 1971-1 s.n. Humboldt along Rt. 36, 2 mi E of Dinsmore in Six Rivers National Forest Comment
  POM126105  Phleum alpinum Joseph P. Tracy 1906-7-1 2514 Humboldt At Eureka 0 Comment
  UC188863  Phleum alpinum Joseph Burtt Davy 1899-7-30 6198 Humboldt Russ Ranch Comment
  CAS-BOT-BC250884  Phleum pratense Henry M. Pollard 1948-7-17 s.n. Humboldt Orleans Comment
  UC908448  Phlox gracilis Joseph P. Tracy 1938-7-11 12699 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC604655  Phlox gracilis Joseph P. Tracy 1938-4-5 15702 Humboldt Willow Creek Trinity River Valley 152 Comment
  SEINET3290581 Image available Phyllospadix torreyi H. E. Parks 1933-11-12 s.n. Humboldt Trinidad, Spruce Cove Comment
  UC1198699  Physocarpus capitatus Joseph P. Tracy 1933-6-25 12619 Humboldt along Eel River Camp Grant (3 mi above junction of South Fork) 60 Comment
  UC203837  Physocarpus capitatus Joseph P. Tracy 1918-9-29 5114 Humboldt 4 mi above mouth South Fork of Eel River; Northern Coast Ranges 60 Comment
  SJSU2517  Physocarpus capitatus H. L. Buckalew 1962-6-21 Humboldt Smith R at Smith Cr Redwood State Park Comment
  CAS-BOT-BC78200  Picea sitchensis W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  NY34411  Picea sitchensis E. K. Balls 1953-10-11 18631 Humboldt 23.4 miles north of Petrolia on Old Coast Road, toward Ferndale 365.8 Comment
  HSC100690  Pimpinella apiodora Carl C. Marshall Jun 1886 298 Humboldt Bald Hills. Comment
  SD41322  Pinus contorta Edith A. Purer 1932-7-27 4132 Humboldt Samoa, near Arcata Comment
  UC1134104  Pinus contorta subsp. contorta H. S. Yates 1936-6-16 5660 Humboldt 1 mi sw Samoa; Eureka Quad. 6 Comment
  UC573158  Pinus contorta subsp. contorta H. S. Yates 1936-6-16 5660 Humboldt 1 mi sw Samoa 6 Comment
  RSA46891  Pinus jeffreyi Doris K. Kildale 1927-7-22 3832 Humboldt Lasseck s Peaks Comment
  CAS-BOT-BC78979  Pinus muricata Doris K. Kildale 1927-3-27 2998 Humboldt on highway 1 mile north of Trinidad Comment
  UC1196914  Pinus muricata unknown 1935-7-1 Humboldt Moonstone Beach settlement Moonstone Beach (0.5 mi or so back from ocean) 60 Comment
  UC551328  Pinus muricata Charles T. Berg 1936-8-8 Humboldt Moonstone Beach Arcata, Moonstone Beach Comment
  CAS-BOT-BC72732  Pinus sabiniana Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1196419  Piperia elegans Joseph P. Tracy 1947-7-9 17831 Humboldt lower slopes Horse Mountain (at the Arford Cabin) 1219 Comment
  UC1225849  Piperia elongata Joseph P. Tracy 1948-7-11 18073 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1196412  Piperia unalascensis Joseph P. Tracy 1926-5-30 7521 Humboldt Willow Creek Canyon Northern Coast Ranges 609 Comment
  UC666983  Piperia unalascensis Joseph P. Tracy 1933-7-25 12880 Humboldt Grouse Mountain 1524 Comment
  UC881326  Plagiobothrys bracteatus Alice Eastwood and John Thomas Howell 1937-6-23 4811 Humboldt Little Van Duzen River Comment
  UC1222225  Plagiobothrys bracteatus Joseph P. Tracy 1942-6-15 17139 Humboldt in mddy stream or mud South Fork of Eel River, Miranda Comment
  UC1239573  Plagiobothrys bracteatus Joseph P. Tracy 1919-5-31 5152 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 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
  HSC100407  Plagiobothrys nothofulvus Carl C. Marshall Apr 1887 371 Humboldt Hoopa Valley. Comment
  JEPS68107  Plagiobothrys nothofulvus Lincoln Constance 1934-5-23 617 Humboldt above Look Prairie; Bull Creek Region, South Fork Eel River 365 Comment
  UC184998  Plagiobothrys reticulatus Joseph P. Tracy 1904-7-4 2111 Humboldt at Eureka; Northern Coast Region, Eureka 0 Comment
  UC708093  Plagiobothrys reticulatus C. V. Piper 1921-5-22 5011 Humboldt Eureka Comment
  UC1222209  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-28 17270 Humboldt roadside near Murphy Meadows (Bald Mountain (e of Korbel)); Bald Mountain Comment
  UC526826  Plagiobothrys reticulatus Joseph P. Tracy 1927-7-10 8245 Humboldt Alton North Coast Ranges, Alton 60 Comment
  UC552845  Plagiobothrys reticulatus Joseph P. Tracy 1935-6-22 13957 Humboldt Holmes Flat North Coast Ranges, Holmes Flat 60 Comment
  JEPS60974  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1918-7-5 5010 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  HSC37930  Plantago lanceolata Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  HSC26448  Plantago maritima T. O. Osborne 1970-5-17 4 Humboldt Sugarloaf Rock, Cape Mendocino Comment
  CHSC32936  Plantago maritima var. juncoides James Payne Smith Jr. 1970-6-7 3813 Humboldt 0.6 miles north of Luffenholtz Beach along Calif. 1 near Trinidad. Comment
  UC1196129  Plantago maritima var. juncoides Joseph P. Tracy 1900-7-4 866 Humboldt Samoa Northern Coast Region, Humboldt Bay Region 0 Comment
  BLMAR322  Plantago subnuda Jennifer Wheeler 2002-8-9 322 Humboldt Lost Coast Headland, Brackish creek edge of south side Guthrie creek 3 Comment
  HSC55142  Platanthera dilatata var. leucostachys G. L. Clifton, Griswold 1979-8-1 12029 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  RSA382868  Platanthera leucostachys Brad W. Klipfel 1973-7-31 255 Humboldt Along ridge trail south east of North Trinity Mountain 1829 Comment
  HSC54529  Platanthera sparsiflora Overton, Butler 1979-7-23 9471 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  CAS-BOT-BC136647  Platanthera stricta Doris Kildale 1931-5-19 10684 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC91645  Platystemon californicus Bolimannsou 1907-5-15 s.n. Humboldt Samoa. Comment
  HSC1976  Platystemon californicus D. E. Anderson, N. Dennis 1965-6-8 107 Humboldt Samoa Peninsula along the W side of Humboldt Bay Comment
  UC906727  Plectritis brachystemon Harold E. Parks and Joseph P. Tracy 1942-5-16 11564 Humboldt vicinity of Garberville 152 Comment
  UC1239602  Plectritis congesta Joseph P. Tracy 1925-5-30 7017 Humboldt 3 mi w of Maple Grove (Bridgeville, Kemp's Ranch); Bridgeville, Kemp's Ranch 198 Comment
  UC1317649  Pleuropogon refractus R. Tofsrud 1949-7-22 Humboldt on road between Scotia and Capetown Comment
  HSC10620  Poa annua R. D. Zortman 1963-3-15 46 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  CAS-BOT-BC254715  Poa bolanderi Joseph P. Tracy 1930-7-16 8902 Humboldt South Fork Mountain: near McKay Camp 1676 Comment
  SACT001812  Poa bolanderi subsp. howellii H. Stinnett 1963-5-12 Humboldt open slopes Comment
  UC1145111  Poa bulbosa Joseph P. Tracy 1942-6-2 17104 Humboldt Valley of S Yager Creek 762 Comment
  SEINET10822289  Poa confinis Joseph P. Tracy 1905-4-30 Tracy 278 Humboldt Sand dunes of Ocean Beach. Comment
  HSC10705  Poa douglasii S. J. Moore 1965-5-9 48 Humboldt Dry Lagoon State Park, near entrance. Comment
  UC207680  Poa douglasii Joseph P. Tracy 1917-5-30 4798 Humboldt at Little River Ocean Beach; Northern Coast Region Comment
  RSA10144  Poa howellii Joseph P. Tracy 1926-5-15 7490 Humboldt Kneeland Prairie 762 Comment
  HSC10721  Poa kelloggii D. E. Anderson 1965-5-6 3622 Humboldt 4.8 mi. W of bridge over N Fork of Mad River, along Hwy. 299 Comment
  UC525620  Poa kelloggii Joseph P. Tracy 1926-4-25 7415 Humboldt on Van Duzen River Grizzly Creek; North Coast Ranges 91 Comment
  RSA21035  Poa macrantha C. B. Wolf 1937-6-18 8904 Humboldt Centerville Beach 3 Comment
  HSC10764  Poa pratensis Gene S. Van Horn 1962-5-5 13 Humboldt Arcata, 250 East 17th St. 61 Comment
  HSC98888  Poa secunda subsp. secunda Cara Witte 2007-6-5 208 Humboldt Along Forest Service Road 4N32. Near Grouse Mountain 1413 Comment
  HSC99123  Poa secunda subsp. secunda Cara Witte 2007-6-4 189 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UCD90884  Poa secunda subsp. secunda J. B. Davy; W. C. Blasdale 1899-6-19 5660 Humboldt Hoopa Summit. Comment
  UC1103188  Poa trivialis Joseph P. Tracy 1938-6-17 15948 Humboldt 1 mi e Cape Mendocino (Cape Ridge) 304 Comment
  UC180504  Poa trivialis Joseph P. Tracy 1914-7-4 4521 Humboldt near Korbel (on Bald Mt rd); Northern Coast Ranges 457 Comment
  UC1988936  Pogogyne zizyphoroides Joseph P. Tracy 1938-7-5 16005 Humboldt Carlotta, five miles east of town, open flat by old Strong's District School House 45 Comment
  RSA0022165  Pogogyne zizyphoroides Joseph P. Tracy 1946-5-30 17544 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town 61 Comment
  JEPS69886  Polemonium carneum Joseph P. Tracy 1924-5-25 6682 Humboldt Big Lagoon 3 Comment
  HSC45283  Polycarpon tetraphyllum R. W. Becking 1978-5-21 Humboldt Coast Guard Station on the N Spit to Humboldt Bay in bunker area Comment
  CHSC57441  Polygala californica L. P. Janeway 1984-6-20 849 Humboldt Slope above Klamath River at unnamed 'River Access' ca 1 mi north of Orleans. 198 Comment
  POM138540  Polygala californica H. P. Chandler 1901-06 1328 Humboldt Hupa Indian Reservation. 152 Comment
  UC1198996  Polygala californica Joseph P. Tracy 1921-4-24 5455 Humboldt facing South Fork Eel River (Phillipsville); Northern Coast Ranges, , South Fork Eel River 121 Comment
  HSC99257  Polygala californica D. E. Anderson 1965-5-1 3570 Humboldt Along Bluff Creek Rd., 2 mi. from its junction with Hwy. 96 Comment
  UC275346  Polygala californica Joseph P. Tracy 1923-6-20 6333 Humboldt Briceland Northern Coast Ranges, Briceland 304 Comment
  SEINET10537775  Polygonum Mary Susan Taylor 1990-8-22 Taylor 6081 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. 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
  RSA12549  Polygonum bistortoides Carl B. Wolf 1934-7-2 5889 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  HSC57966  Polygonum minimum G. L. Clifton, Griswold 1979-7-31 11683 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CAS-BOT-BC109184  Polygonum paronychia E. A. McGregor 1921-8-25 s.n. Humboldt Requa and vicinity. Sand bar extending southward from mouth of Klamath River. Comment
  RSA332472  Polygonum paronychia J. P. Smith 1971-10-6 4957 Humboldt Dunes at the end of Murray road in McKinleyville Comment
Read comments
Feb 21 2012
  UC1136167  Polygonum persicaria H. L. Person 1932-7-18 Humboldt Freshwater Eureka Quadrangle Comment
  UC1198083  Polygonum persicaria Joseph P. Tracy 1919-9-14 5203 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC97963  Polygonum polygaloides subsp. kelloggii Cara Witte 2007-6-13 264 Humboldt Along Forest Service Road 5N04. Near spring by Grouse Mountain. 1583 Comment
  HSC54719  Polygonum spergulariiforme Overton, Butler 1979-7-26 10094 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  CHSC53230  Polypodium glycyrrhiza L. P. Janeway 1984-12-5 1194 Humboldt On the North Spit of Humboldt Bay; on the west side of Samoa Rd near the boat ramp. 4 Comment
  UCD136882  Polypodium glycyrrhiza M. Wiesendanger 1928-4-7 902 Humboldt Redwood Highway, Lane's Redwood Flat, probably the Franklin K. Lane Grove. 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
  POM232318  Polypodium scouleri I. L. Wiggins 1930-7-11 4686 Humboldt Near Samoa Comment
  HSC1130  Polypodium scouleri W. R. Supernaugh, Jr. 1964-12-11 14 Humboldt 300 yards S of Trinidad Harbor 9 Comment
  HSC79377  Polypogon interruptus Kenneth Clark 1980-5-10 645 Humboldt Shelter Cove, bluffs of Point Delgada. 5 Comment
  UC526769  Polypogon maritimus Joseph P. Tracy 1930-10-19 9236 Humboldt Eel River on gravel bars Alton to Fortuna; Eel River 15 Comment
  CAS-BOT-BC232593  Polypogon monspeliensis Doris K. Kildale 1927-6-25 3546 Humboldt Shelter Cove Comment
  HSC10847  Polypogon monspeliensis R. H. Berg 1963-4-30 61 Humboldt Junction of Samoa Road and Hwy. 101, Arcata. Comment
  UC519315  Polystichum Joseph P. Tracy 1933-10-15 13101 Humboldt along S Fork Eel River Miranda; North Coast Ranges 91 Comment
  CAS-BOT-BC76764  Polystichum imbricans subsp. imbricans Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. Comment
  CHSC31316  Polystichum munitum Mark Stopher 1980-6-4 86 Humboldt Along Elk River near Rte 101 bridge. 1 Comment
  HSC70930  Polystichum munitum R. York 1980-5-18 559 Humboldt Near Black Mtn. 1006 Comment
  HSC98660  Polystichum munitum Cara Witte 2007-7-26 597 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1443 Comment
  RSA247492  Polystichum munitum Gary D. Wallace 1966-9-12 703 Humboldt Along Hwy. 299 E of Arcata near Willow Creek; Comment
  SBBG307  Polystichum munitum H. and M. Dearing 1939-5-27 3455 Humboldt Patrick's Point Comment
  HSC98514  Polystichum munitum Cara Witte 2008-7-10 857 Humboldt Brays Opening on National Forest 1. 0.5 mi. north of intersection with Forest Service Road 4N38. 1393 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-BC102908  Populus trichocarpa Doris K. Kildale; L. B. Kildale 1930-4-13 9571 Humboldt Bridgeville 289 Comment
  UC205456  Portulaca oleracea Joseph P. Tracy 1919-9-13 5194 Humboldt near Willows Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  UCSB24728  Potamogeton natans Keefe, Joseph 1967-7-8 Humboldt east side of U.S. Highway 101, turnoff to Crannell Road, north of Eureka. 6 Comment
  BLMAR668  Potamogeton nodosus Jennifer Wheeler 2012-10-10 668 Humboldt Lacks Creek, Beaver Ridge Pond 914 Comment
  CAS-BOT-BC454067  Potamogeton pusillus subsp. pusillus S. K. Harris 1938-9-12 s.n. Humboldt Backwater of Eel River, near Fernbridge Comment
  HSC95655  Potentilla anserina subsp. pacifica Andrea Pickart 2002-4-22 52 Humboldt Lanphere Dunes, upper edge of Mad River Slough 10 Comment
  POM275246  Potentilla anserina var. grandis Lyman D. Benson 1928-7-10 437 Humboldt Clam Beach, Trinidad. Sand dunes, along a small stream. 6 Comment
  UC492176  Potentilla drummondii Joseph P. Tracy 1932-7-10 10391 Humboldt wet meadow at Corral Prairie (Trinity Summit); Klamath Mountains, Trinity Summit 1524 Comment
  UC183755  Potentilla gracilis var. gracilis Joseph P. Tracy 1912-7-26 3875 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC585628  Potentilla gracilis var. gracilis Joseph P. Tracy 1933-8-6 12929 Humboldt on Bald Hills e Orick (Tomlinson Ranch); on Bald Hills e of Orick, Tomlinson Ranch 670 Comment
  HSC49151  Proboscidea louisianica Garry Markegard 1979-9-11 Humboldt Along Bald Hills Rd. ca. 400 ft. N of the Rd. between Williams Ridge and Cagle Ridge at old stage stop ca. 12 mi. from Jct. with State Route 101, Simpson property, Mr. Emmss caretaker, adjacent to vegetable garden. Comment
  HSC71584  Prosartes hookeri Gail Newton 1980-6-16 191 Humboldt Near Onion Mtn. 1280 Comment
  SBBG58721  Prosartes hookeri R. Hartwell 1938-8-4 107 Humboldt Bull Crk Flat Comment
  HSC45241  Prosartes hookeri Thomas W. Nelson, Jane P. Nelson 1977-7-1 3553 Humboldt Along Blanket Creek, N side of ridge between Bear and Blanket Creeks 1463 Comment
  HSC97528  Prosartes hookeri Frances Reuss Harmon 2001-3-31 15 Humboldt Six Rivers National Forest, Gray Falls picnic area Comment
  UCD139801  Prosartes hookeri Victor Duran 1933-5-12 3413 Humboldt Dyerville, South Fork of Eel River. Comment
  HSC75750  Prosartes smithii Bill Copeland 1980-7-2 354 Humboldt Near Snow Camp Mtn. 1311 Comment
  HSC49800  Prosartes smithii R. York 1979-4-9 214 Humboldt Behind HSU campus, by trail Comment
  RSA43859  Prunus avium H. M. Pollard 1948-7-20 s.n. Humboldt River banks, roadsides and edges of forest near Orleans escape Comment
Read comments
Sep 17 2010
  CAS-BOT-BC159979  Prunus emarginata H. E. McMinn 1922-8-5 354 Humboldt Along Van [Dusen] Duzen River Comment
  HSC57014  Prunus emarginata Overton, Butler 1979-7-24 9614 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  UC1713769  Prunus emarginata Joseph P. Tracy 1919-9-24 5296 Humboldt Trinity Summit; Northern Coast Ranges, Trinity Summit 1828 Comment
  UC492199  Prunus virginiana var. demissa Joseph P. Tracy 1928-8-5 8493 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC127827  Pseudognaphalium californicum Joseph Burtt Davy and Walter C. Blasdale 1899-6-26 5890 Humboldt Francis Ridge Comment
  CAS-BOT-BC357271  Pseudognaphalium microcephalum Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  UC582515  Pseudognaphalium ramosissimum Joseph P. Tracy 1936-8-24 15169 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  BLMAR704  Pseudognaphalium stramineum Jennifer Anthony-Wheeler 1994-9-8 704 Humboldt Samoa dunes, growing atop a knoll/dune with I the Samoa Pen. Rare plant area 15 Comment
  CAS-BOT-BC357600  Pseudognaphalium stramineum Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans region Comment
  HSC88102  Pseudognaphalium stramineum R. W. Becking 1989-2-28 Humboldt Samoa, N Spit, Coast Guard back dunes Comment
  JEPS20501  Pseudognaphalium stramineum Lincoln Constance 1934-5-26 665 Humboldt s end Dyerville Bridge (sand and gravel bar of river); South Fork Eel River 45 Comment
  UC1173656  Pseudognaphalium thermale Joseph P. Tracy 1939-7-13 16348 Humboldt near Humboldt-Mendocino County line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  CAS-BOT-BC80118  Pseudotsuga menziesii Doris K. Kildale 1928-7-1 5664 Humboldt Klamath River at mouth of Bluff Creek Comment
  UC1223168  Psilocarphus tenellus Joseph P. Tracy 1949-6-20 18320 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC1197752  Pterospora andromedea Joseph P. Tracy 1948-8-15 18119 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  CAS-BOT-BC460602  Pyrola aphylla Doris Kildale 1931-5-24 10846 Humboldt Little Laribee, Laribee Valley Comment
  JEPS58839  Pyrola aphylla Milo S. Baker 1923-7-31 168 Humboldt Booth's Run, North Coast Comment
  UC32692  Pyrola asarifolia Joseph P. Tracy 1898-7-1 248 Humboldt Kneeland Prairie 1066 Comment
  CAS-BOT-BC462868  Pyrola asarifolia Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC100475  Pyrola bracteata Carl C. Marshall Jun 1885 107 Humboldt Higher hills. Comment
  JEPS58815  Pyrola dentata Joseph P. Tracy 1926-6-6 7564 Humboldt Hoopa Mountain. On road West from Hoopa Valley, Northern Coast Ranges 914 Comment
  UC535750  Pyrola picta Eleanor Armstrong 1934-8-23 1160 Humboldt Richardson Grove 121 Comment
  HSC72788  Quercus chrysolepis M. A. Baker 1980-6-26 2413 Humboldt Near Sims Creek 610 Comment
  UC203862  Quercus chrysolepis Joseph P. Tracy 1918-9-29 5109 Humboldt 4 mi above mouth of South Fork Eel River; North Coast Ranges, South Fork Eel River 60 Comment
  UC5535  Quercus chrysolepis unknown 1867-6-17 Humboldt Elk Ridge Comment
  CAS-BOT-BC62727  Quercus garryana var. breweri Doris K. Kildale 1926-9-5 2631 Humboldt Head of Red Lassecks huk. Lasseck's Peaks 1676 Comment
  HSC98850  Quercus garryana var. garryana Cara Witte 2008-9-13 1037 Humboldt Forest Service Road 4N06. 1/4 mile east of intersection with National Forest 1. Cow Creek Ridge. 1283 Comment
  RSA53125  Quercus garryana var. garryana Roxana S. Ferris 1955-7-11 12973 Humboldt Summit of U.S. Hwy 299 btwn. Willow Creek and Blue Lake. Comment
  CAS-BOT-BC104331  Quercus sadleriana Clarence R. Quick 1960-6-27 60 -23 Humboldt Bear Gulch on road from Delta to Trinity Center Comment
  HSC102574  Quercus vacciniifolia M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1561 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC74169  Quercus vacciniifolia M. A. Baker 1980-7-23 3187 Humboldt Near Orleans Mtn. 1859 Comment
  HSC76360  Quercus vacciniifolia Denis Kearns 1981-7-6 81 Humboldt Near Mosquito Lake 1256 Comment
  HSC8296  Quercus vacciniifolia C. B. Wolf 1927-8-28 1173 Humboldt On the grade 9 mi. from Willow Creek, Lord Ellis Rd. to Blue Lake Comment
  UC1196538  Quercus vacciniifolia Joseph P. Tracy 1934-6-27 11044 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  UCD47406  Quercus vacciniifolia H. L. Mason 1932-7-21 7018 Humboldt East slope of Southfork Mts. On road Arcata to Weaverville, Humboldt County. Comment
Read comments
Oct 6 2006
  UC184714  Ranunculus alismifolius Joseph P. Tracy 1913-6-17 4155 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (nw slope of mt.) 1066 Comment
  HSC81826  Ranunculus alismifolius var. hartwegii Thomas W. Nelson 1979-7-11 5009 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC55312  Ranunculus flammula var. ovalis Griswold, Butler 1979-7-11 6988 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC18216  Ranunculus hebecarpus D. E. Anderson 1965-5-8 3628 Humboldt 0.6 mi. W of bridge over N Fork of the Mad River along Hwy. 299 Comment
  HSC26676  Ranunculus muricatus Thomas W. Nelson 1971-5-7 430 Humboldt Dunes at Lamphere property Comment
  UC1196220  Ranunculus occidentalis Joseph P. Tracy 1908-6 2688 1/2 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC162862  Ranunculus occidentalis Joseph P. Tracy 1908-6-9 2671 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1196234  Ranunculus occidentalis Joseph P. Tracy 1914-5-3 4417 Humboldt corner Harris St. and Broadway (top of Bluff); Northern Coast Region, Eureka 0 Comment
  UC486518  Ranunculus occidentalis Parks and Tracy 1930-5-25 859 Humboldt Laribee Valley; along small stream, eastern Humboldt Co. Comment
  HSC73606  Ranunculus occidentalis var. occidentalis M. A. Baker 1980-7-22 3118 Humboldt Near Grogan Hole. 1676 Comment
  HSC18166  Ranunculus occidentalis var. occidentalis D. E. Anderson 1962-5-1 2190 Humboldt 1 mi. E of junction of Redwood Creek road and road to Hoopa Comment
  HSC98685  Ranunculus occidentalis var. occidentalis Cara Witte 2008-6-7 685 Humboldt Along National Forest 1. Approximately 4 miles south of intersection National Forest 1 and 5N04. 1441 Comment
  HSC98651  Ranunculus orthorhynchus var. platyphyllus Cara Witte 2008-6-9 694 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1454 Comment
  UC1116204  Ranunculus parviflorus Joseph P. Tracy 1948-6-13 18026 Humboldt flat by old Strong's District School House (5 mi e of Carlotta) 60 Comment
  UC1196272  Ranunculus uncinatus J. P. Tracy 1901-5-5 1065 Humboldt Immediate vicinity of Eureka 0 Comment
  UC13973  Ranunculus uncinatus Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  HSC18195  Ranunculus uncinatus var. parviflorus E. W. Styskel 1963-5-19 40 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 305 Comment
  UCD115153  Raphanus raphanistrum Linda M. Barker 1976-7-5 1647 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  RSA40887  Rhamnus californica subsp. occidentalis Carl B. Wolf 1944-10-28 11476 Humboldt Sacramento River Canyon, 0.4 ile below mouth of Mears Creek. 457 Comment
  UC1197996  Rhamnus purshiana Mary Harriet Tracy 1946-5-30 Humboldt 5 mi e Carlotta; Van Duzen River, Riverside Park 30 Comment
  SEINET2031087 Image available Rhododendron columbianum Joseph P. Tracy 1924-1 6728 Humboldt Big Lagoon 6 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
  CAS-BOT-BC56612  Rhododendron macrophyllum Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  SD51270  Rhododendron macrophyllum Darley F. Howe 1961-8-2 3120 Humboldt 7.7 miles east of Orick on Bald Mountain Road. 609 Comment
  CAS-BOT-BC433140  Ribes W. R. Dudley 1899-6-21 s.n. Humboldt Near Pepperwood Comment
  CAS-BOT-BC433133  Ribes Doris K. Kildale; L. B. Kildale 1930-4-27 9565 Humboldt Prairie Creek near Orick Comment
  UC667066  Ribes binominatum Joseph P. Tracy 1933-8-30 13058 Humboldt on e slope Grouse Mountain (near lookout station) 1615 Comment
  CAS-BOT-BC92880  Ribes bracteosum W. R. Dudley 1899-6-21 s.n. Humboldt Engelwood Brook-Eel River. Comment
  HSC97303  Ribes bracteosum M. Mesler 2007-3-14 738 Humboldt Along Hwy. 101 at Orick Refuse Site (E side of Hwy.) 9 Comment
  CAS-BOT-BC108909  Ribes divaricatum var. pubiflorum Doris K. Kildale 1926-3-25 1619 Humboldt Liscom Hill. Lower Mad River. 30 Comment
  CAS-BOT-BC108912  Ribes divaricatum var. pubiflorum H. E. McMinn 1922-8-5 345 Humboldt Along Van Duzen River. Comment
  BLMAR564  Ribes inerme Jennifer Wheeler 2010-3-29 564 Humboldt Headwaters Forest Reserve, along Elk River Trail within first mile, east side trail 42 Comment
  RSA152409  Ribes inerme Joseph P. Tracy 1941-3-26 16813 Humboldt Lack Pond: in Trinity River Valley, opposite mouth of Willow Creek. 152 Comment
  HSC102560  Ribes lacustre M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1547 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UCR80295  Ribes laxiflorum H. E. Parks, S. T. Parks 1937-6-4 24004 Humboldt North Coast, along Prairie Creek at Valley Green Comment
  CAS-BOT-BC206041  Ribes menziesii Joseph P. Tracy 1948-3-6 17953 Humboldt Trinidad 60 Comment
  CHSC24917  Ribes menziesii M. B. Simpson 1976-4-10 20 Humboldt Ca. 1 yd s of Wagon Wheel Rd, ca. .3 mi e of West Haven Dr, ca. 13 mi n of Arcata. 121 Comment
  HSC70757  Ribes roezlii R. York 1980-5-17 526 Humboldt Near Le Perron Peak 792 Comment
  JEPS49190  Ribes roezlii Joseph P. Tracy 1923-3-17 6159 Humboldt Garberville Northern Coast Ranges 121 Comment
  UC1198948  Ribes roezlii var. amictum Joseph P. Tracy 1914-5-30 4487 Humboldt near Hydesville; Northern Coast Region of California, Van Duzen River 60 Comment
  HSC20336  Ribes sanguineum E. W. Styskel 1963-3-3 2 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  HSC20348  Ribes sanguineum C. O. Baker 1962-3-22 12 Humboldt 2 mi. S of Trinidad along old Hwy. 101 122 Comment
  CAS-BOT-BC211976  Ribes sanguineum Duart V. Brown 1947-3-30 20 Humboldt Near Tectah Creek, Klamath River Comment
  UC1585362  Ribes sanguineum R. Raiche, K. Zadnick, and H. Forbes 1989-10-2 UCBG 24 Humboldt sw Hoopa (Gair Rd. at Pine Ridge Summit) 972 Comment
  HSC103217  Ribes sanguineum var. glutinosum Jade Paget-Seekins 2010-3-14 3 Humboldt McKinleyville, west end of Hiller Park. 10 Comment
  HSC95681  Ribes sanguineum var. glutinosum Steven Lee 2004-3-23 4 Humboldt Manila Dunes along Samoa Blvd., 200ft W of first powerline in parking area along Gun Club Rd. Comment
  HSC65645  Ribes viscosissimum J. P. Smith, J. O. Sawyer 1975-6-2 8208 Humboldt Six Rivers National Forest, W of Goat Hill 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
  UC1541335 Image available Ribes viscosissimum W. K. Parks July 1933 Humboldt South Fork Mountain Comment
  HSC26800  Romanzoffia californica Thomas W. Nelson 1971-4-24 404 Humboldt Willow Creek Comment
  CAS-BOT-BC74506  Rorippa curvisiliqua Doris K. Kildale 1926-7-18 2391 Humboldt Orick. Comment
  CAS-BOT-BC74505  Rorippa curvisiliqua Doris K. Kildale 1926-4-11 1767 Humboldt Van Duzen River at Alton. 30 Comment
  UCD115322  Rorippa palustris Joseph P. Tracy; H. E. Parks 1931-5-17 9425 Humboldt Trinity River near Willow Creek. 152 Comment
  UC1222308  Rosa Joseph P. Tracy 1950-7-6 19028 Humboldt on the Albee Rd 3 mi s Burr. Valley (along stream) 1066 Comment
  UC302164  Rosa Joseph P. Tracy 1925-6-21 7128 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UC667029  Rosa Joseph P. Tracy 1936-8-24 15179 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  CHSC33380  Rosa canina J. O. Sawyer; R. J. Cole 1977-7-3 3019 A Humboldt Along Big Hill Road (8N01) at Mud Spring. Comment
  OBI5836  Rosa eglanteria Carl B. Wolf 1931-8-28 2363 Humboldt 1/8 mi from Rohnerville on road to Fortuna 30 Comment
  HSC70703  Rosa gymnocarpa Gail Newton 1980-7-14 1547 Humboldt Near Deadman Ridge 362 Comment
  RSA166375  Rosa gymnocarpa Robert F. Thorne 1957-9-2 18999 Humboldt Burlington State Park, just S of Weott. Comment
  HSC98101  Rosa nutkana Cara Witte 2007-6-21 329 Humboldt White Oak Opening. Along Kinsey Ridge. 1259 Comment
  SBBG3082  Rosa nutkana H. and M. Dearing 1939-5-26 3448 Humboldt Bishop Pine Lodge, N of Trinidad Comment
  UC709450  Rosa nutkana subsp. macdougalii Joseph P. Tracy 1941-6-29 16965 Humboldt lower foothills of nw slope Buck Mountain 762 Comment
  UC12912  Rosa nutkana var. nutkana Harley P. Chandler May, 1901 1198 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC1541247  Rosa nutkana var. nutkana H. E. Parks July 1933 4698 Humboldt vicinity of Trinidad Comment
  UC303026  Rosa nutkana var. nutkana Joseph P. Tracy 1923-6-22 6345 Humboldt Angels Ranch Bald Mt.; Northern Coast Ranges, Bald Mt. 457 Comment
  UC902155  Rosa pisocarpa Joseph P. Tracy 1947-8-24 17890 Humboldt near Box Camp; Trinity Summit 1524 Comment
  JEPS47289  Rubus discolor W. L. Jepson 1934-5-7 16715 Humboldt flat over Bull Creek; Flat over Bull Creek Comment
  UCR121766  Rubus discolor George K. Helmkamp, E. A. Helmkamp 2001-7-8 7002 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  HSC58030  Rubus leucodermis G. L. Clifton 1979-7-31 11850 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC69888  Rubus leucodermis Thomas W. Nelson, Jane P. Nelson 1977-7-30 3664 Humboldt Beside State Rte. 36, 1 mi. E of Dinsmore. 732 Comment
  POM271092  Rubus leucodermis Lyman D. Benson 1928-7-8 386 Humboldt Weott Ranger Station. Seaward N Coast Mt. Range, S Fork Eel River. 61 Comment
  RSA89563  Rubus leucodermis Philip A. Munz 1954-7-23 19862 Humboldt About 6 miles E of Dinsmore's. 762 Comment
  UC666865  Rubus leucodermis Joseph P. Tracy 1937-7-24 15532 Humboldt in fir woods near Grizzly Camp (head of Little Hors Linto Creek); Trinity Summit, head of Little Hors Linto Creek 1371 Comment
  HSC19655  Rubus parviflorus J. P. Tracy 1932-7-15 10576 Humboldt Near Corral Prairie 1524 Comment
  HSC56257  Rubus parviflorus Walter Overton 1979-8-1 12400 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  HSC74809  Rubus parviflorus Gail Newton 1980-7-22 1689 Humboldt Near Devils Backbone 1545 Comment
  SEINET10771638  Rubus parviflorus Benjamin W. van Ee, Melissa A. van Ee; Pieter J. van Ee; Juliana M. van Ee 2014-1-1 van Ee 1835 Humboldt By pull-out just W of Hwy 101 on the E shore of Big Lagoon, N of Big Lagoon County Park. 5 Comment
  UC162331  Rubus parviflorus Joseph P. Tracy 1911-7-7 3432 Humboldt between Willow Creek and Campbell Creek (viz. Ridge n of Willow Creek, near the summit); Northern Coast Ranges, Brannan Mountain, n Willow Creek 1219 Comment
  UCD98613  Rubus parviflorus Lindsay Clark; Stella Hartono 2009-9-15 KRC 40 Humboldt Nadelos Campground in King Range Conservation Area. 506 Comment
  UC1301222  Rubus spectabilis Paul C. Hutchison 1966-5-26 2741 Humboldt near U.S. highway 101 (Prairie Creek Redwood Grove State Park); Prairie Creek Redwood Grove State Park 50 Comment
  CAS-BOT-BC158790  Rubus ursinus J. P. Tracy 1902-7-4 1759 Humboldt Immediate vicinity of Eureka 152 Comment
  HSC19697  Rubus ursinus John A. Dubois 1962-5-23 21 Humboldt 20 mi. E of Arcata. Comment
  SBBG52989  Rumex acetosella J. D. Hobson -Jul-1966 Humboldt beach and cliff at S end of sand spit forming Eureka Harbor, Loleta Comment
  CAS-BOT-BC421935  Rumex acetosella Doris K. Kildale 1927-6-25 3576 Humboldt Fearriens Ranch between Thorn & Shelter Cove. Comment
  CAS-BOT-BC421936  Rumex acetosella Doris K. Kildale 1925-8-17 1239 Humboldt Trinity Summit - near Waterdog Lake. 1828 Comment
  HSC17567  Rumex acetosella J. W. Johnson 1961-8-17 1039 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC89592  Rumex acetosella M. Roantree 1985-5-24 60 Humboldt E side of Trinidad Head Comment
  HSC73636  Rumex californicus M. A. Baker 1980-7-22 3128 Humboldt Near Grogan Hole. 1676 Comment
  HSC26348  Rumex crispus T. O. Osborne 1970-5-24 75 Humboldt Flat-iron Rock, 3/4 mi. NW Trinidad Lighthouse Comment
  JEPS39867  Rumex obtusifolius Milo S. Baker 1923-8-4 181 Humboldt s of Stone Lagoon Comment
  CAS-BOT-BC433704  Rumex occidentalis Doris Kildale Gillespie 1931-6-7 10651 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  UC672922  Rumex salicifolius var. salicifolius Joseph P. Tracy 1932-7-11 10405 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC668106  Sagina apetala Joseph P. Tracy 1933-3-19 12200 Humboldt Alton to Fortuna (Eel R.); Eel R. 15 Comment
  UC1196721  Salix Joseph P. Tracy 1935-4-17 13775 Humboldt Alton to Fortuna; Eel R. 15 Comment
  CHSC9646  Salix exigua E. L. Smith 1971-8-17 1017 Humboldt On the Van Duzen River ca. 18 mi s of Eureka. Comment
  SBBG58914  Salix exigua var. hindsiana H. E. Parks, J. P. Tracy 1931-5-17 971 Humboldt mouth of Willow Crk at Trinity River Comment
  CAS-BOT-BC104094  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0969 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC104098  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0975 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC107730  Salix hookeriana Harold E. Parks 1931-3-24 914 Humboldt Eel River, Fortuna 10 Comment
  CAS-BOT-BC107743  Salix hookeriana Joseph P. Tracy 1936-2-23 14772 Humboldt Bank of Eel River - Fortuna 15 Comment
  CHSC9558  Salix hookeriana E. L. Smith 1971-4-7 928 Humboldt Clam Beach County Park ca. 6 mi s of Trinidad. Comment
  CHSC9654  Salix hookeriana E. L. Smith 1971-8-18 1025 Humboldt Clam Beach County Park ca. 6 mi s of Trinidad. Comment
  CHSC96697  Salix hookeriana Gordon Leppig 1999-4-15 1118 Humboldt Big Lagoon County Park, Big Lagoon Bog. On western edge of fen. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  HSC19959  Salix hookeriana C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-11 1225 Humboldt 1 mi. N of Samoa, near coast 0 Comment
  HSC40860  Salix hookeriana Linda M. Barker 1976-4-13 1380 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata Comment
  HSC59397  Salix hookeriana Rick Lundquist 1979-4-27 44 Humboldt N spit along Samoa Rd., across from Samoa boat ramp 0 Comment
  HSC96368  Salix hookeriana Gordon Leppig 1999-4-15 1121 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  HSC96617  Salix hookeriana Gordon Leppig 2005-4-8 2203 Humboldt N spit, S end of Peninsula Dr. 3 Comment
  JEPS12947  Salix hookeriana Joseph P. Tracy 1931-10-18 9742 Humboldt Camp Grant Northern Coast Ranges, Eel River 60 Comment
  JEPS12959  Salix hookeriana Joseph P. Tracy 1931-9-20 9686 Humboldt mouth of Little River; Northern Coast Ranges 6 Comment
  JEPS13089  Salix hookeriana Joseph P. Tracy 1936-10-24 15203 Humboldt Fortuna; bank of Eel River 15 Comment
  LA208754  Salix hookeriana Harold E. Parks; 1931-5-28 1000 Humboldt Little River Lagoon, Trinidad; at sea level Comment
  POM106778  Salix hookeriana Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  POM161042  Salix hookeriana Joseph P. Tracy 1926-11-21 7831 Humboldt Near mouth of Little River. 6 Comment
  POM219558  Salix hookeriana H. E. Parks 1931-3-24 912 Humboldt Fortuna. Eel River. 10 Comment
  RSA183566  Salix hookeriana R. I. Bonn 1965-4-3 11 Humboldt Four miles west of Arcata on Lanphere Rd. Comment
  UC1173586  Salix hookeriana Joseph P. Tracy 1936-8-17 15159 Humboldt Mad R. at mouth of Lindsey Creek; Mad R., Lindsey Creek 15 Comment
  UC176702  Salix hookeriana Joseph P. Tracy 1913-9-21 4414 Humboldt Humboldt Bay Northern Coast Region (ocean beach) Comment
  UC470443  Salix hookeriana Joseph P. Tracy 1931-9-19 9676 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC490472  Salix hookeriana Joseph P. Tracy 1932-9-5 10771 Humboldt Mattole River near Petrolia; North Coast Region 15 Comment
  UC512001  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1236 Humboldt Blue Slide Van Duzen River 91 Comment
  UC512014  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1229 Humboldt 1 1/2 mi e Alton; Van Duzen River 30 Comment
  UCD111022  Salix hookeriana Carleton R. Ball; Harold E. Parks and Joseph P. Tracey 1932-5-11 01210 b Humboldt Little River Lagoon, 4 1/2 miles south of Trinidad. Comment
  HSC104061  Salix hookeriana M. F. Norman 2015-4-11 2 Humboldt Arcata, Ma-le'l Dunes Comment
  HSC75962  Salix jepsonii Overton, Butler 1979-8-2 12592 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC1173603  Salix laevigata Joseph P. Tracy 1935-5-25 13886 Humboldt Dobbyn Creek 152 Comment
  UC490519  Salix laevigata Joseph P. Tracy 1932-5-1 9879 Humboldt vicinity of Garberville; Northern Coast Ranges 121 Comment
  UC481239  Salix lasiandra subsp. lasiandra Harold E. and Susan T. Parks 1931-8-15 1078 Humboldt Van Duzen R. Blue Slide; , Blue Slide 100 Comment
  CAS-BOT-BC107019  Salix lasiolepis Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01233 Humboldt On floodplain of the Van Duzen River, 1 1/2 miles east of Alton 30 Comment
  CAS-BOT-BC107591  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1317 Humboldt On banks of Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  CAS-BOT-BC107622  Salix lasiolepis Joseph P. Tracy 1933-4-9 10966 Humboldt Bridgeville, along Van Duzen R. 228 Comment
  CAS-BOT-BC107643  Salix lasiolepis Joseph P. Tracy 1933-4-2 10960 Humboldt On open grassy slope of Berry's Mountain, on Trinity Highway, east of Redwood Creek 762 Comment
  HSC56187  Salix lasiolepis Gilbert Muth 1979-8-1 12123 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  JEPS12966  Salix lasiolepis Joseph P. Tracy 1931-9-26 9695 Humboldt at Redwood Creek Berry's; Northern Coast Ranges 274 Comment
  UC275523  Salix lasiolepis Joseph P. Tracy 1923-4-15 6189 A Humboldt Redwood Creek, at Berry's 274 Comment
  UC469417 Image available Salix lasiolepis Joseph P. Tracy 1927-8-7 8305 Humboldt Redwood Creek, at Berry's 274 Comment
  UC471108  Salix lasiolepis Joseph P. Tracy 1931-9-26 9695 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC490548  Salix lasiolepis Joseph P. Tracy 1932-4-24 9805 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC490552  Salix lasiolepis Joseph P. Tracy 1932-3-6 9775 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC504026  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1319 Humboldt Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  UC506399  Salix lasiolepis Joseph P. Tracy 1932-8-21 10359 Humboldt Three Cabins Northern Coast Ranges, Chaparral Mountain (lower western foothills of mt.) 457 Comment
  UC512025  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1333 Humboldt near bridge on Trinity Highway (foot of bank); Trinity River 152 Comment
  UC512031  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1328 Humboldt e Redwood Creek (w slope of mt., on Trinity Hwy); Berry's Mountain 762 Comment
  UC512118  Salix lasiolepis Joseph P. Tracy 1933-4-2 10960 Humboldt on Trinity Hwy e Redwood Creek; Berry's Mountain 762 Comment
  UCSB10872  Salix lasiolepis Parks, Harold; Parks, Susan 1931-8-15 Humboldt Blue Slide, Van Duzen River 100 Comment
  CAS-BOT-BC107294  Salix lasiolepis var. bigelovii Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01239 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  CAS-BOT-BC107298  Salix lasiolepis var. bigelovii Harold E. Parks; Joseph P. Tracy 1931-5-17 0976 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC107404  Salix lasiolepis var. lasiolepis Doris K. Kildale 1926-3-28 1678 Humboldt Redwood Creek near Berry's 289 Comment
  CAS-BOT-BC107408  Salix lasiolepis var. lasiolepis Doris K. Kildale 1927-5-13 3145 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC125605  Salix melanopsis Harold E. Parks 1931-5-14 0965 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  POM218957  Salix melanopsis H. P. Bracelin 1931-5-2 283 Humboldt E of Redwood Hwy, 6km S of Alton. 20 Comment
  UC275492  Salix melanopsis Joseph P. Tracy 1925-7-26 7209 Humboldt near S. Fork Trinity River Valley; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC490563  Salix melanopsis Joseph P. Tracy 1932-5-1 9850 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R., Alton 30 Comment
  UC519373  Salix melanopsis Joseph P. Tracy 1933-5-20 12262 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  RSA0038342  Salix melanopsis var. tenerrima Harold E. Parks, Joseph P. Tracy 1931-5-17 0972 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  CAS-BOT-BC129247  Salix piperi Joseph P. Tracy 1934-9-22 13676 Humboldt Mouth of Mad River 9 Comment
  CAS-BOT-BC129127  Salix scouleriana A. T. Whittemore 1979-4-5 79 -012 Humboldt Arcata, cleared field along Alliance Road immediately north of Arcata High School 6 Comment
  CAS-BOT-BC129154  Salix scouleriana Doris K. Kildale 1926-9-9 2687 Humboldt Black Oaks, near Low Gap of Mad River Comment
  CAS-BOT-BC129158  Salix scouleriana Joseph P. Tracy 1937-3-21 15238 Humboldt Van Duzen River, near Grizzly Creek 91 Comment
  CAS-BOT-BC129164  Salix scouleriana Harold E. Parks 1931-5-14 957 Humboldt Little Larabee Bridge, Van Duzen River 450 Comment
  CDA14419  Salix scouleriana P. Haggard 1996-3-18 s.n. Humboldt Eureka. 0 Comment
  HSC20076  Salix scouleriana J. P. Tracy 1932-7-13 10507 Humboldt Klamath Mtns., Trinity summit, Corral Prairie 1524 Comment
  JEPS14778  Salix scouleriana Joseph P. Tracy 1933-4-2 10957 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 609 Comment
  UC1173630  Salix scouleriana Joseph P. Tracy 1937-3-21 15236 Humboldt Van Duzen R. near Grizzly Creek; Van Duzen R. 91 Comment
  UC490506  Salix scouleriana Joseph P. Tracy 1932-8-11 10338 Humboldt Bridgeville Northern Coast Ranges, Bridgeville 228 Comment
  UC490536  Salix scouleriana Joseph P. Tracy 1932-7-13 10518 Humboldt open groung at Corral Prairie (back from the meadows); Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  UCD111733  Salix sessilifolia Carleton R. Ball; Harold E. Parks, and Joseph P. Tracey 1932-5-12 01245 Humboldt Van Duzen River at Blue Slide. 91 Comment
  CAS-BOT-BC128984  Salix sitchensis Harold E. Parks 1931-3-24 910 Humboldt Trinidad 90 Comment
  CAS-BOT-BC128988  Salix sitchensis Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-12 1230 Humboldt Floodplain of the Van Duzen River, 1 1/2 miles east of Alton 30 Comment
  HSC20099  Salix sitchensis H. E. Parks, S. T. Parks 1932-4-12 1111 Humboldt Blue Slide, Van Duzen River Comment
  HSC38145  Salix sitchensis Thomas W. Nelson 1976-11-3 3279 Humboldt Eureka, E side of F St., 3800 block Comment
  HSC96575  Salix sitchensis Gordon Leppig 2003-2-20 1805 Humboldt Eureka Slough, Cooper Gulch 5 Comment
  UC1199054  Salix sitchensis Joseph P. Tracy 1938-7-31 16088 Humboldt head of Willow Creek (along Trinity Hwy.); Willow Creek Canyon, Willow Creek 762 Comment
  UC481274  Salix sitchensis Harold E. Parks 1931-5-28 1026 Humboldt Little River Lagoon Comment
  UC481377  Salix sitchensis Harold E. Parks 1931-3-25 903 Humboldt Van Duzen R. Orick; , Orick 6 Comment
Read comments
Jul 9 2011
  SEINET4855902  Salix tracyi Unknown 1931-5-17 0976 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  RSA24053  Sambucus callicarpa C. B. Wolf 1941-2-22 9918 Humboldt Along Redwood Highway 2.8 miles south of Patricks Point State Park 30 Comment
  CAS-BOT-BC235120  Sambucus racemosa var. racemosa Doris K. Kildale 1926-3-26 1632 Humboldt Kneeland Road - old road 609 Comment
  HSC36228  Sambucus racemosa var. racemosa John Rehling 1975-4-21 53 Humboldt Along Jolly Giant Creek behind HSU campus. Comment
  UCD137271  Sambucus racemosa var. racemosa David G. Forbes 1966-4-4 66- 432 Humboldt 1 miles north of Fresh Water Lagoon, U.S. Highway 101. 30 Comment
  HSC49243  Sanicula arctopoides Sheila Logan 1978-4-7 5 Humboldt Samoa sand dunes, 1/4 mi. N of Coast Guard Station. Comment
  HSC79384  Sanicula arctopoides Kenneth Clark 1981-5-24 1392 Humboldt Abalone Pt. 15 Comment
  UC154052  Sanicula arctopoides J. P. Tracy 1900-6-5 852 Humboldt immediate vicinity of Eureka (at Bucksport); Bucksport 0 Comment
  HSC26452  Sanicula arctopoides T. O. Osborne 1970-5-17 18 Humboldt Sugarloaf Rock, Cape Mendocino Comment
  HSC37194  Sanicula bipinnatifida Barbara Kelly 1976-5-13 255 Humboldt Below road at Kneeland Airport Comment
  HSC68612  Sanicula crassicaulis Jacqueline Greenleaf 1980-7-16 245 Humboldt Near Buck Mountain. 1250 Comment
  UC1197097  Sanicula crassicaulis Joseph P. Tracy 1914-5-14 4426 Humboldt Northern Coast Ranges, Fort Seward Fort Seward; Northern Coast Ranges, Fort Seward 121 Comment
  UC1022533  Sanicula crassicaulis C. Ritchie Bell 1952-5-3 1326 Humboldt near Cobbs (along Mad River); Mad River Comment
  JEPS1004  Sanicula graveolens Joseph P. Tracy 1929-7-4 8614 A Humboldt French Camp Ridge 1066 Comment
  UC314594  Sanicula graveolens Joseph P. Tracy 1926-6-20 7648 Humboldt Northern Coast Ranges, Horse Mountain Horse Mountain; Northern Coast Ranges, Horse Mountain 1524 Comment
  JEPS995  Sanicula laciniata Joseph P. Tracy 1925-3-29 6950 Humboldt Miranda, along South Fork of Eel River South Fork Eel River; Northern Coast Ranges, Miranda, South Fork Eel River 91 Comment
  HSC81587  Sanicula tracyi Thomas W. Nelson, Jane P. Nelson 1980-5-25 5248 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  JEPS977  Sanicula tracyi Joseph P. Tracy 1908-6-30 2747 Humboldt Northern Coast Ranges, Buck Mountain Buck Mountain; Northern Coast Ranges, Buck Mountain 762 Comment
  HSC74271  Sanicula tuberosa M. A. Baker 1980-5-23 1378 Humboldt Near Buck Mtn. 1524 Comment
  HSC21645  Sanicula tuberosa F. Morrell 1949-5-15 Humboldt Berry Summit Comment
  UC1239688  Satureja douglasii Joseph P. Tracy 1912-7-4 3733 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC1198881  Saxifraga californica Joseph P. Tracy 1922-4-30 6024 Humboldt Trinity River Valley, Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  JEPS79978  Saxifraga marshallii Joseph P. Tracy 1941-3-26 16834 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC441185  Saxifraga mertensiana Duart V. Brown 1947-3-25 7 Humboldt Bull Creek near Highway on Hoopa Valley Indian Reservation 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
  UCD13239  Saxifraga mertensiana Collector unknown 1976-4-10 106 Humboldt California: Humboldt Co. Junction of stae Highway 36 with Alderpoint Rd. Elev. 1800 ft. 548 Comment
  HSC7445  Schoenoplectus americanus J. W. Johnson 1962-4-18 1271 Humboldt Between the Mad River mouth and the Hunt Farm, Samoa Peninsula Comment
  POM87952  Schoenoplectus pungens Le Roy Abrams, Rimo C. Bacigalupi 8268 Humboldt Big Lagoon, south of Orick. Comment
  UC1103644  Scirpus microcarpus Joseph P. Tracy 1943-7-18 17440 Humboldt along shore Big Lagoon; along shore Big Lagoon 3 Comment
  HSC59709  Scoliopus bigelovii Clark L. Miller 1979-5-13 1128 Humboldt E of Hwy. 101 from Seawood Drive Comment
  RSA24328  Scoliopus bigelovii Carl B. Wolf 1941-2-28 9973 Humboldt 1.3 miles east of Redwood Creek Bridge. On the Blue Lake to Willow Creek Road. 244 Comment
  SEINET12058059  Scoliopus bigelovii F. H. Utech 1988-3-4 88 -026 Humboldt 12.7 mi E on CA 36 from jct US 101 & Van Duzen River, Grizzly Creek Redwoods, O.R. Cheatam Grove 90 Comment
  HSC21129  Scrophularia californica D. E. Anderson 1961-8-11 1734 Humboldt Redwood preserve E of HSU campus 30 Comment
  HSC89423  Scrophularia californica P. A. Daly 1984-5-8 13 Humboldt Trinidad Head 61 Comment
  HSC58561  Scutellaria antirrhinoides Overton, Butler 1979-7-26 10108 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  HSC97100  Scutellaria antirrhinoides Yun Chan, Renee Meyer, Sophary Yun 2007-6-11 4 Humboldt 14.1 mi. S of Hwy. 299 on FS Rd. NF1 1364 Comment
  UC1239705  Scutellaria antirrhinoides Joseph P. Tracy 1927-7-24 8296 Humboldt Mattole Valley 152 Comment
  UC416677  Scutellaria antirrhinoides M. H. Manning 1901-5-26 93 Humboldt near Hupa Comment
  RSA43682  Scutellaria antirrhinoides H. M. Pollard 1948-7-27 s.n. Humboldt Road to Red Cap Creek near Orleans. Comment
  UC25790  Scutellaria antirrhinoides Chesnut and Drew July 1888 Humboldt Campbells Comment
  HSC65852  Sedum laxum subsp. flavidum Gail Newton 1980-6-28 673 Humboldt Near Mad River Butte. 1536 Comment
  HSC76351  Sedum laxum subsp. heckneri Teresa Prendusi 1981-7-21 279 Humboldt Near Whiteys Peak 1646 Comment
  JEPS48063  Sedum spathulifolium W. L. Jepson 1902-6-20 1908 Humboldt Hubbard's Station to Main Eel River; Hubbard's Station to Main Eel River Comment
  UC1198829  Sedum spathulifolium Joseph P. Tracy 1913-6-26 4347 Humboldt opposite Buck Mountain (Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Valley Van Duzen River, Buck Mountain 762 Comment
  HSC6480  Sedum spathulifolium var. spathulifolium William J. Ferlatte, B. D. Rogers 1966-6-15 2103 Humboldt Larabee Valley 762 Comment
  CAS-BOT-BC62179  Selaginella oregana Joseph P. Tracy 1933-5-18 12196 Humboldt Mad River, near Blue Lake 15 Comment
  JEPS307  Selaginella oregana Joseph P. Tracy 1928-8-29 8426 Humboldt Prairie Creek; Northern Coast Ranges 152 Comment
  CAS-BOT-BC69737  Selaginella wallacei Joseph P. Tracy 1932-3-20 9783 Humboldt Trinidad. 60 Comment
  CDA19897  Senecio cineraria P. Haggard 2002-7-1 PDR P 070939 Humboldt Northern California; on Hwy 36 near Carlotta. 0 Comment
  HSC33721  Senecio elegans B. Sullivan 1975-5-24 106 Humboldt Off Samoa Blvd. across from the boat landing Comment
  HSC57419  Senecio integerrimus G. L. Clifton, Griswold 1979-7-26 10182 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  HSC81775  Senecio integerrimus var. major Thomas W. Nelson, James Nelson 1980-6-10 5406 Humboldt Along Swayback Ridge 4-wheel drive road, 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  RSA167401  Senecio mikanioides Joseph P. Tracy 1942-1-25 17054 Humboldt Near Ferndale along Russ Creek. Comment
  UC1118080  Senecio minimus H. L. Person 1931-7-30 Humboldt Fieldbrook Eureka Quad., Fieldbrook Comment
  UC581699  Senecio sylvaticus Joseph P. Tracy 1934-7-3 13305 Humboldt near Freshwater Corners (around Humboldt Bay); northern Coast Region, around Humboldt Bay 15 Comment
  HSC58000  Senecio triangularis G. L. Clifton, Griswold 1979-7-31 11780 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC6132  Senecio vulgaris Frances Oldridge 1945-1 Humboldt College Hill Comment
  MACF017376  Sequoia sempervirens Trudy R. Ericson 1974-8-6 202 Humboldt Off U. S. 101, exit to Patrick's Point State Beach Park, near Seaward Drive Comment
  UC195423  Sequoia sempervirens Joseph P. Tracy 1914-12-20 4638 Humboldt Eureka 0 Comment
  UC602552  Sherardia arvensis Joseph P. Tracy 1937-6-20 15337 Humboldt 10 mi from mouth Bear River Comment
  UC108862  Sidalcea asprella J. W. Blankinship 1893-6-15 Humboldt Bridgeville Comment
  UC1198397  Sidalcea diploscypha Joseph P. Tracy 1942-6-15 17166 Humboldt 5 mi n Garberville; n of Garberville 152 Comment
  UC668136  Sidalcea malachroides Joseph P. Tracy 1938-6-15 15938 Humboldt vicinity Carlotta; vicinity of Carlotta 30 Comment
  HSC104350  Sidalcea malviflora subsp. patula James Regan, Humboldt Redwood Co., LLC 19 Humboldt Kneeland 854 Comment
  HSC98049  Sidalcea oregana subsp. eximia Cara Witte 2007-7-19 545 Humboldt Ammon Ridge Road. Approximately 1/4 mile east of intersection with National Forest 1. 1560 Comment
  UC146131  Sidalcea oregana subsp. eximia Joseph P. Tracy 1907-6-25 2578 Humboldt in valley of Elk River Northern Coast Region, region about Humboldt Bay (region about Humboldt Bay) 0 Comment
  HSC104342  Sidalcea oregana subsp. eximia James Regan, Humboldt Redwood Co., LLC 2 Humboldt Table Bluff 46 Comment
  SD42480  Silene californica Carl B. Wolf 1937-6-18 8890 Humboldt Table Bluff, between Humboldt Bay and Eel River. 29 Comment
  CAS-BOT-BC174876  Silene campanulata subsp. glandulosa Clarence R. Quick 1959-7-24 59 -33 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  HSC44538  Silene campanulata subsp. greenei Brad Klipfel 1973-7-15 154 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC384425  Silene coronaria Volney Rattan 1878-1-1 s.n. Humboldt Hoopa Valley Comment
  HSC4189  Silene gallica Harvey Doerksen 1962-5-8 9 Humboldt 3 mi. W of Blue Lake, fork Mad River and Essex Creek Comment
  UC1198368  Silene gallica Joseph P. Tracy 1930-5-24 8700 Humboldt on gravel bar of North Fork Mad River (at Riverside); North Fork of Mad River, at Riverside 30 Comment
  UC1541453  Silene hookeri H. E. Parks and J. P. Tracy 1930-5-25 791 Humboldt Laribee Valley 792 Comment
  HSC68116  Silene laciniata subsp. californica J. P. Smith 1973-5-26 6819 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC13913  Sisyrinchium bellum Jack Rockwell 1962-5-4 52 Humboldt Lone Star Junction 549 Comment
  SEINET6744566 Image available Sisyrinchium bellum C. C. Harris, S. K. Harris 1942-6-9 1219 Humboldt 3 miles north and 1 mile west of Fernbridge, Humboldt County, California. Alt. Ca. 33 m. Comment
  UC1196378  Sisyrinchium bellum Joseph P. Tracy 1930-7-6 8838 Humboldt Kneeland Prairie 762 Comment
  SEINET4171044  Sisyrinchium bellum C. C. Harris, S. K. Harris 1942-6-9 1219 Humboldt Hillside, 3 miles north and 1 mile west of Fernbridge 33 Comment
  HSC62863  Sisyrinchium californicum J. M. DiTomaso 1979-5-20 1047 Humboldt Big Lagoon Park, 8 mi. N of Trinidad Comment
  UC275574  Sisyrinchium californicum Joseph P. Tracy 1924-8-3 6764 Humboldt Big Lagoon; Northern Coast Region 6 Comment
  RSA245276  Sisyrinchium californicum Brad W. Klipfel 1973-8-17 271 Humboldt Big Lagoon Park, north of Trinidad Comment
  UC1197805  Smilacina racemosa Joseph P. Tracy 1936-8-7 15106 1/2 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  JEPS12067  Solanum americanum Lincoln Constance 1934-6-2 786 Humboldt Bull Creek Road to mouth of (and up) Bull Creek (Bull Creek Region, South Fork Eel River); Bull Creek Region, South Fork Eel River Comment
  UC1332476  Solanum furcatum G. L. Stebbins Jr. 1941-5-26 130 Humboldt Trinidad Comment
  HSC37163  Solanum furcatum J. D. Ackerman 1974-5-25 257 Humboldt S Trinidad Beach, S of Trinidad Head Comment
  HSC25425  Solanum physalifolium var. nitidibaccatum J. P. Smith 1972-11-12 5827 Humboldt Arcata, adjacent to Mad River Hospital Comment
  JEPS12168  Solanum umbelliferum Joseph P. Tracy 1937-6-20 15340 Humboldt Bear River, 10 miles upstream from the mouth Bear River 152 Comment
  UC577351  Solanum umbelliferum Joseph P. Tracy 1937-5-30 15313 Humboldt near Bosworth's (Larrabee Creek); Northern Coast Ranges, Larrabee Creek 457 Comment
  RSA20813  Solidago canadensis var. gilvocanescens C. B. Wolf 1937-9-9 9311 Humboldt North Coast Range, Wildcat Ridge, 6.3 miles south of Ferndale. 305 Comment
  CAS-BOT-BC365439  Solidago elongata Doris K. Kildale 1926-6-18 2408 Humboldt Gold Bluffs Comment
  UC1541617  Solidago elongata H. E. and S. T. Parks 1930-9-14 785 Humboldt n shore Big Lagoon Comment
  CHSC76025  Solidago spathulata Vernon H. Oswald 1999-8-19 9835 Humboldt Elk Head at the N end of Trinidad State Beach. At the headland overlooking the ocean. 30 Comment
  UC582437  Sonchus asper Joseph P. Tracy 1936-8-24 15177 Humboldt 6 mi se Arcata (Fickle Hill); Fickle Hill 609 Comment
  UCSB30587  Sonchus asper Edwards, David 1974-8-12 Humboldt North side of 7th St. just W. of its overpass of U.S. 101, Arcata 18 Comment
  UC1198766  Sorbus californica Doris K. Kildale 1926-9-5 2635 Humboldt on trail between Red Peak and Signal Peak; Lasseck's Peaks 1676 Comment
  HSC83043  Spartina densiflora A. L. Eicher 1985-6-19 Humboldt Bordering Humboldt Bay, adjacent to the mouth of Mad River Slough, on SW side 1 Comment
  CAS-BOT-BC236608  Spartina foliosa W. A. Silveus 1938-7-10 2966 Humboldt Eureka Comment
  HSC38388  Spergula arvensis Peter Sorensen 1976-6-14 Humboldt N Spit of Humboldt Bay Comment
  RSA246882  Spergula arvensis R. F. Thorne, Percy C. Everett 1965-8-8 35265 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  UCD99184  Spergula arvensis Collector unknown 1925-6-7 1613 Humboldt Willow Camp. Comment
  HSC90774  Spergularia macrotheca var. macrotheca Gail Newton 1983-8-21 3857 Humboldt Elk River Wildlife Area, Eureka. Comment
  HSC4254  Spergularia rubra D. E. Anderson 1961-9-30 1838 Humboldt Comment
  HSC68109  Spergularia rubra J. P. Smith, J. O. Sawyer 1973-5-12 6670 Humboldt 2 mi. from Redwood Creek on Hoopa Rd. Comment
  RSA0098106  Spergularia rubra James Payne Smith 1976-5-27 8814 Humboldt Arcata, corner of 14th and G Street. Comment
  RSA246715  Spiraea douglasii Robert F. Thorne, Percy C. Everett 1965-8-7 35195 Humboldt At S end of Big Lagoon. 2 Comment
  UC13535  Spiranthes romanzoffiana Chesnut and Drew 1888-8-11 Humboldt Eureka Comment
  UC153992  Stachys ajugoides var. rigida J. P. Tracy 1906-5-20 2466 Humboldt immediate vicinity Eureka 0 Comment
  UC630494  Stachys ajugoides var. rigida H. E. and S. T. Parks 1937-7 24025 Humboldt Spruce Cove Trinidad 60 Comment
  UC668213  Stachys ajugoides var. rigida Joseph P. Tracy 1938-7-4 15987 B Humboldt Valley of South Yager Creek 762 Comment
  UCLA71172  Stachys ajugoides var. rigida C. Epling, Wm. Robison 1935-7-22 Humboldt Patrick's Point Comment
  UC1239729  Stachys ajugoides var. rigida Joseph P. Tracy 1921-6-4 5810 Humboldt Carlotta Northern Coast Ranges 60 Comment
  UCLA70877  Stachys ajugoides var. rigida Joseph P. Tracy 1938-7-12 16054 Humboldt Table Bluff Beach, lowlands at w foot of bluff Table Bluff 6 Comment
  UCLA71134  Stachys ajugoides var. rigida H. Lewis 1940-7-3 Humboldt Founders Tree Humboldt State Park Comment
  UCR275115  Stachys bullata Charity A. Hartshorn 2016-4-24 17 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  POM283395  Stachys chamissonis Lyman Benson 1928-7-10 s.n. Humboldt Clam Beach, 8 mi. S. of Trinidad. 15 Comment
  UC154006  Stachys chamissonis Joseph P. Tracy 1907-6-25 2577 Humboldt region about Humboldt Bay; Northern Coast Region, Elk River Valley 0 Comment
  UCLA71113  Stachys mexicana C. Epling, Wm. Robison 1935-7-22 Humboldt Patrick's Point Comment
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Aug 1 2016
  HSC49394  Stachys rigida R. York 1979-5-15 288 Humboldt Trail leading to College Cove 1 mi. N of Trinidad Comment
  RSA20782  Stachys rigida subsp. rigida Carl B. Wolf 1937-8-13 9246 Humboldt North Coast Range 11 mi. E. of Hoopa Valley on New Road towards Trinity Summit. 1524 Comment
  HSC4269  Stellaria media Elrid H. Spinas 1948-5-22 30 Humboldt Horse Mtn. Comment
  HSC48380  Stellaria media Mark Flippo 1978-4-18 37 Humboldt McKinleyville, Bella Vista Rd. Comment
  HSC57118  Streptanthus tortuosus Walter Overton, Marvin Butler 1979-7-25 9863 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  HSC57631  Streptanthus tortuosus var. tortuosus G. L. Clifton, Terry Griswold 1979-7-25 10783 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC175818  Streptopus amplexifolius var. americanus Joseph P. Tracy 1912-8-1 3956 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC303040  Streptopus amplexifolius var. americanus Joseph P. Tracy 1926-5-22 7508 Humboldt Prairie Creek; Northern Coast Ranges 152 Comment
  UC22723  Swertia albicaulis var. nitida J. Burtt Davy 1899-6-21 5737 Humboldt e slope Hoopa Mt. (on the borders of Supply Creek); North Coast Ranges, , Supply Creek Comment
  HSC34130  Swertia radiata J. O. Sawyer 1970-6-24 2285 Humboldt Near Waterdog Lakes 1860 Comment
  CAS-BOT-BC99159  Symphyotrichum chilense P. C. Everett; E. K. Balls 1959-10-25 23960 Humboldt 14 mi. W. of Willow Creek on Hwy. 299 to Arcata 502 Comment
  CAS-BOT-BC99005  Symphyotrichum eatonii Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC153938  Symphyotrichum subspicatum Joseph P. Tracy 1910-10-8 3170 Humboldt Brainard's Point Northern Coast Ranges, Humboldt Bay 0 Comment
  HSC40906  Synthyris reniformis J. O. Sawyer 1970-4-24 2193 Humboldt Along FS Rd. 7N04 at Cedar Creek below Groves Prairie Comment
  HSC100683  Synthyris reniformis Carl C. Marshall Apr 1886 188 Humboldt Near North Fork of Mad River. Comment
  JEPS26262  Synthyris reniformis Joseph P. Tracy 1939-3-19 16205 Humboldt by old Strong's District School House, 5 mi e of town Carlotta 45 Comment
  SD39584  Tanacetum camphoratum Charlotte Hoak 1931-7-15 Humboldt Eureka Comment
  UCR122356  Tanacetum camphoratum George K. Helmkamp, E. A. Helmkamp 2001-7-8 7012 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  RSA21021  Tanacetum vulgare C. B. Wolf 1937-9-12 9330 Humboldt Big Lagoon, S side along Redwood Hwy. 6 Comment
  RSA167250  Taraxacum laevigatum Joseph P. Tracy 1951-6-24 19542 Humboldt Ashfield Ridge 762 Comment
Read comments
Aug 15 2009
  HSC6259  Taraxacum officinale S. R. Johnson 1965-3-16 13 Humboldt 1 mi. N of Luffenholtz Beach Comment
  HSC6264  Taraxacum officinale R. T. Forester 1963-3-21 30 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  HSC89474  Taraxacum officinale P. A. Daly 1986-3-12 91 Humboldt Trinidad Head, along trail 61 Comment
  UC1197068  Tauschia kelloggii Joseph P. Tracy 1936-6-17 14943 Humboldt Bridgeville 198 Comment
  UC21435  Tauschia kelloggii C. C. Marshall Apr. 1888 Humboldt Comment
  HSC45931  Taxus brevifolia Jerome Peterson 1978-4-29 9 Humboldt Along bank of Redcap Creek 1.0 mi. down Millgap Rd. from Redcap Rd. Comment
  SDSU2035  Taxus brevifolia D. F. Howe 1964-8-7 4128 Humboldt 8.2 miles from #96 on Mill Creek Road, Hoopa Valley. 1067 Comment
  RSA167304  Tellima grandiflora Joseph P. Tracy 1950-6-8 18722 Humboldt Near Mountain Glen Ranch, summit of ridge, 7 miles south of Ferndale. Bear River Ridge. 610 Comment
  UC1196164  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1947-4-27 17672 Humboldt Metropolitan 30 Comment
  UC668275  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1937-5-30 15308 Humboldt along creek 3 mi n Blocksburg; Larrabee Creek 457 Comment
  UC1239777  Thelypteris nevadensis Joseph P. Tracy 1947-7-5 17803 Humboldt near Box Camp Trinity Summit 1524 Comment
  RSA259571  Thermopsis macrophylla var. agnina Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-7-15 2000 Humboldt Growing on Serpentine outcrop at Franch Camp, Bald Hills Comment
  UC1778592  Thermopsis robusta G. F. Hrusa 1998-7-5 14700 Humboldt Siskiyou Mountains; Cedar Camp Rd. +/- 5 mi. E of Weitchpec on Hwy 96. N side of Hwy. Mile 8.8 Comment
  LA31711  Thuja plicata C. B. Wolf; 1930-10-25 1764 Humboldt 1 mi. above Blue Lakes on road to Willow Creek (Lord Ellis Road) 243 Comment
  UC275509  Thuja plicata Joseph P. Tracy 1923-11-18 6593 Humboldt Wild Cat Ridge near Ferndale; Northern Coast Ranges, Wild Cat Ridge 457 Comment
  HSC97624  Thysanocarpus curvipes Cara Witte 2007-6-4 194 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UCR3513  Tiarella trifoliata var. unifoliata David Whistler, H. M. Whistler 1964-7-29 640729- 5 Humboldt 0.2 mi north of Meyers Flats on U.S. 101 75 Comment
  CAS-BOT-BC436906  Tiarella trifoliata var. unifoliata Milo S. Baker 1923-7-1 82 Humboldt Near Wilder's Comment
  UC677699  Tiarella trifoliata var. unifoliata C. C. and S. K. Harris 1936-6-16 660 Humboldt Redwood forest on Yager Road from Carlotta 152 Comment
  HSC62637  Tolmiea diplomenziesii R. D. Zortman 1963-5-12 43 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  JEPS49717  Tolmiea diplomenziesii Milo S. Baker 1923-7-31 154 Humboldt Booth's Run Yager Creek Region (tributary of Lawrence Creek) Comment
  UC642321  Torilis nodosa Joseph P. Tracy 1935-5-25 13892 Humboldt Dobbyn Creek 152 Comment
  RSA46908  Toxicodendron diversilobum Doris K. Kildale 1926-9-9 2676 Humboldt Van Duzen River Comment
  RSA591513  Tracyina rostrata J. L. Strother 1996-5-30 1363 Humboldt NE of Alderpoint, easterly from Alderpoint-Blocksburg Road, 1km (0.6mi) on unpaved Stewart Ranch Road. 160 Comment
  UC1222896  Tracyina rostrata Joseph P. Tracy 1950-6-23 18859 Humboldt 3 mi ne Alderpoint; Dobbyn Creek 213 Comment
  UC165853  Tracyina rostrata Joseph P. Tracy 1903-5-23 1892 Humboldt Alder Point Northern Coast Ranges 243 Comment
  HSC98085  Tragopogon dubius Cara Witte 2007-7-3 400 Humboldt National Forest 1. 2 miles south from intersection with 5N04. 1561 Comment
  CAS-BOT-BC517423  Triantha occidentalis subsp. occidentalis Doris K. Kildale 1925-8-16 1185 Humboldt Trinity Summit 1917 Comment
  HSC27392  Trichostema lanceolatum Thomas W. Nelson 1970-9-3 210 Humboldt Mad River. Comment
  SEINET12350141  Trichostema lanceolatum E. A. York 1990-1 2703 Humboldt USGS Redwood Field Station, Arcata Comment
  RSA167428  Trichostema oblongum Joseph P. Tracy 1950-8-8 19284 Humboldt Croghan Hole, on Trinity Summit 1677 Comment
  POM118789  Trientalis latifolia Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville. Comment
  SEINET12157031  Trifolium albopurpureum J. P. Tracy 1948-1 17989 Humboldt W side of top of Spruce Grove Ridge near Harris Comment
  UC1197230  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1906-6-10 2488 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC169303  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1912-6-9 3674 Humboldt Alton Northernb Coast Ranges, Humboldt Bay Comment
  UC180224  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1914-5-14 4452 Humboldt Fort Seward 121 Comment
  UC495672  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1929-5-5 8566 Humboldt along South Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  UC1103432  Trifolium barbigerum Joseph P. Tracy 1932-5-10 9964 Humboldt near Petrolia (Mattole); North Caost Ranges 15 Comment
  HSC100886  Trifolium cyathiferum Carl C. Marshall Jun 1887 453 Humboldt Jewett Creek. Comment
  POM214884  Trifolium dichotomum Joseph P. Tracy 1932-5-1 9894 Humboldt Vicinity of Garberville Comment
  HSC15116  Trifolium dubium Harvey Doerksen 1962-5-8 18 Humboldt 3 mi. W of Blue Lake, fork Mad River and Essex Creek Comment
  UCD108880  Trifolium dubium W. A. Williams 1951-6-1 s.n. Humboldt Humboldt County. Comment
  UC495651  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-21 8770 Humboldt Larrabee valley Northern Coast Ranges 701 Comment
  SEINET12147991  Trifolium fucatum var. virescens J. P. Tracy 1938-1 15950 Humboldt S side of Cape Ridge. Cape Mendocino, s of point of the cape 30 Comment
  UC1152150  Trifolium hybridum Joseph P. Tracy 1938-6-15 15926 Humboldt 2 mi s town (Field's Landing, Salmon Creek Flats, s end of bay); Humboldt Bay 6 Comment
  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
  HSC100251  Trifolium incarnatum J. P. Smith, & J. O. Sawyer 2010-5-2 12808 Humboldt Along Hwy. 96, N of Orleans 140 Comment
  HSC99726  Trifolium longipes subsp. oreganum Glenn W. K. Shelton 2010-7-16 20 Humboldt Titlow Hill Rd., turnout on right 0.9 mi. S of Cold Springs, 0.2 mi. down road from Titlow Hill Rd. 1421 Comment
  UC1223332  Trifolium longipes var. oreganum Joseph P. Tracy 1947-7-27 17836 Humboldt Horse Mtn Comment
  UC495660  Trifolium macraei Joseph P. Tracy 1927-6-8 8114 Humboldt Trinidad; Northern Coast Ranges, Trinidad 15 Comment
  UC1197237  Trifolium macraei Joseph P. Tracy 1901-5-18 1098 Humboldt Ocean Beach Northern Coast Ranges, Humboldt Bay Comment
  HSC45137  Trifolium microcephalum R. Sutherland 1978-6-1 4 .1678 Humboldt 213 Comment
  UC1197543  Trifolium microdon J. P. Tracy 1911-5-30 3202 Humboldt Bucksport Eureka vicinity 0 Comment
  UC1197488  Trifolium obtusiflorum Joseph P. Tracy 1920-5-18 5330 Humboldt 4 mi above mouth of Eel River (Forest Lodge, on South Fork); Northern Coast Ranges 60 Comment
  UC1197501  Trifolium obtusiflorum Joseph P. Tracy 1915-6-6 4648 Humboldt along rr track (Eureka); Northern Coast Region 0 Comment
  RSA273375  Trifolium oreganum Thomas W. Nelson, Jane P. Nelson 1976-6-15 2711 Humboldt Along old trail from lookout to Blocksburg 1555 Comment
  HSC70318  Trifolium repens M. A. Baker 1980-6-7 1869 Humboldt Near Ammon Creek 732 Comment
  UC1197045  Trifolium resupinatum J. P. Tracy 1896-5 105 Humboldt immediate vicinity Eureka (J and 14th St.) 0 Comment
  HSC45107  Trifolium subterraneum R. Sutherland 1978-5-12 2 .12578 Humboldt Mckee Flat 288 Comment
  UC1223534  Trifolium variegatum var. melananthum Joseph P. Tracy 1935-5-25 13861 Humboldt Fort Seward 106 Comment
  UC1103451  Trifolium variegatum var. melananthum J. P. Tracy 1898-4 158 Humboldt Eureka vicinity Northern Coast Region 0 Comment
  UC175673  Trifolium variegatum var. variegatum Joseph P. Tracy 1913-6-20 4232 Humboldt n w slope Buck Mtn (lower foothills); Northern Coast Ranges 762 Comment
  HSC31739  Trifolium willdenovii Donald Spalinger 1974-5-12 57 Humboldt Williams Ridge Rd., 1 mi. N from junction with Bald Hills Rd. 732 Comment
  JEPS4152  Trifolium willdenovii Joseph P. Tracy 1932-5-10 9944 Humboldt between Petrolia and the ocean Northern Coast Ranges 152 Comment
  UC1223315  Trifolium willdenovii Joseph P. Tracy 1938-6-8 15866 Humboldt Samoa Sand Dunes Comment
  CHSC10114  Trifolium wormskioldii J. W. Johnson 1961-8-17 1009 Humboldt Arcata. In a vernal pond community of Hollow 10 W. M. Lanphere Farm. Samoa Peninsula. Comment
  UC1223374  Trifolium wormskioldii Joseph P. Tracy 1950-6-29 18940 Humboldt 6 mi s Arcata (Fickle Hill) Comment
  BLMAR610  Trifolium wormskioldii Jennifer Anthony-Wheeler 2011-4-21 610 Humboldt King range, Above Smith gulch, on Strawberry Rock. KRSR0004 243 Comment
  UC573542  Trifolium wormskioldii H. S. Yates 1936-6-18 5723 Humboldt 2 mi s mouth of Littler River; Eureka quad 3 Comment
  RSA18064  Triglochin maritima Carl B. Wolf 1927-8-22 784 Humboldt Big Lagoon Comment
  HSC14173  Triglochin maritima Rollin Sparrowe 1962-5-7 19 Humboldt Comment
  HSC36439  Triglochin maritima John Rehling 1974-7-8 8 Humboldt Big Lagoon Bog Comment
  HSC15683  Trillium albidum D. E. Anderson 1965-5-1 3567 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC15713  Trillium albidum Elrid H. Spinas 1948-6-16 18 Humboldt Horse Mtn. Comment
  SDSU19196  Trillium albidum Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3006 Humboldt Six Rivers National Forest. From Hwy 299, take Titlow Hill Road (at Berry Summit) ca. 7.5 miles south, west 0.2 miles to Cold Spring. Ca. 0.2 mile south-southeast of Cold Spring. Ca. 3.3 aerial miles south-southeast of Horse Mtn. Radio Tower. 1416 Comment
  HSC96774  Trillium kurabayashii M. Mesler 2006-5-25 604 Humboldt Big Hill Rd., 11.4 mi. E of Hwy. 96 at Six Rivers Forest boundary 1463 Comment
  HSC37360  Trillium ovatum Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 490 Humboldt Along Lost Man Creek. 38 Comment
  HSC57025  Trillium ovatum Overton, Butler 1979-7-24 9646 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  SD112794  Trillium ovatum Darley F. Howe 1963-5-26 3557 Humboldt 3.7 miles east of Orick, on Bald Hill Road. 487 Comment
  UC1197822  Trillium ovatum Joseph P. Tracy 1923-3-17 6153 Humboldt near Garberville Garberville; Northern Coast Ranges 121 Comment
  CAS-BOT-BC521320  Trillium rivale J. H. Thomas 1949-6-12 897 Humboldt 2 miles west of Matins Ferry on road to Orick. Comment
  SEINET10459890  Triodanis perfoliata Chandler CHANDLER 1514 Humboldt Klamath River, somes bar. 427 Comment
  SEINET10459929  Triodanis perfoliata Unknown Blasdale 5888 B Humboldt KLAMATH RIVER 335 Comment
  HSC90809  Triphysaria eriantha subsp. eriantha Gail Newton 1982-5-1 2487 Humboldt Eureka, Elk River Wildlife Area Comment
  JEPS26224  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1899-4-9 136 Humboldt region about Humboldt Bay Bucksport; Northern Coast Region, region about Humboldt Bay 0 Comment
  UC1334891  Triphysaria eriantha subsp. eriantha L. D. Thurman 1965-4-8 626 Humboldt 4.4 mi s Samoa; s of Samoa Comment
  HSC20903  Triphysaria pusilla F. B. Plett 1963-5-11 44 Humboldt 1.5 mi. N of Trinidad on old Hwy. 101 Comment
  UC1222456  Triphysaria pusilla Joseph P. Tracy 1927-5-8 7986 Humboldt vicinity Garberville; vicinity of Garberville 121 Comment
  UC27277  Triphysaria pusilla C. E. Spear April, 1898 Humboldt Waddington Comment
  CHSC1822  Triphysaria versicolor subsp. faucibarbata V. Holt 1941-5-30 Humboldt Comment
  UC902249  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1944-5-14 17467 Humboldt Eureka 6 Comment
  HSC31723  Triphysaria versicolor subsp. versicolor J. P. Smith 1974-5-16 7370 Humboldt Arcata, median strip along Samoa Blvd. near Sunnybrae Comment
  CAS-BOT-BC199620  Trisetum canescens Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  SEINET200925 Image available Trisetum canescens Joseph P. Tracy 1935-7-30 14359 Humboldt Salmon Summit. 1768 Comment
  HSC13416  Trisetum cernuum J. A. Waller 1965-5-16 39 Humboldt Open field near Big Lagoon. Comment
  HSC91881  Trisetum cernuum E. Mackey 1986-10-7 Humboldt Partick's Point State Park. Comment
  UCD93907  Trisetum cernuum R. Tofsrud 1949-7-1 s.n. Humboldt On road between Scotia and Capetown. Comment
  UC421775  Triteleia hyacinthina P. E. Goddard 1907-5-29 C. 108 Humboldt Van Duzen Comment
  HSC91592  Triteleia laxa E. Mackey 1986-6-16 Humboldt Patrick's Point State Park, near Ceremonial Rock Comment
  UC144105  Triteleia laxa J. P. Tracy 1909-7-18 3013 Humboldt immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC526350  Triteleia laxa Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  CAS-BOT-BC85891  Tsuga heterophylla C. B. Wolf 1930-10-25 1019 Humboldt Along the Blue Lake to Willow Creek road (Lord Ellis Road), 12 mi. above Blue Lake 304 Comment
  OBI17879  Tsuga heterophylla Wallace Weber, John C. Cooke, D. J. Pinkava, & David J. Keil 1969-8-19 2213 Humboldt 24.9 mi W of Humboldt County line on Rte 299 Comment
  HSC13200  Umbellularia californica Jana Kattenhorn 1970-10-24 110 Humboldt HSC Campus, E of Building 37 Comment
  HSC14489  Umbellularia californica Francis Winter 1960-4-24 Humboldt 2 mi. NE of Redwood Creek Ranch 610 Comment
  UC915720  Umbellularia californica W. L. Jepson 1903-6-13 36 Humboldt Briceland Comment
  UC1198132  Urtica urens Joseph P. Tracy 1941-6-17 16917 Humboldt Eureka 30 Comment
  CAS-BOT-BC193958  Vaccinium cespitosum L. B. Kildale 1931-8-23 s.n. Humboldt Snow Camp 1219 Comment
  HSC55180  Vaccinium cespitosum Gilbert Muth 1979-8-1 12191 Humboldt Near N Trinity Mtn. 1798 Comment
  CAS-BOT-BC199223  Vaccinium membranaceum Joseph P. Tracy 1935-7-22 14121 Humboldt Forks of Tish-Tang-a-Tang Creek, Trinity Summit 1371 Comment
  CAS-BOT-BC199313  Vaccinium ovatum John McLaren 1920-9-1 s.n. Humboldt Unspecified Comment
  HSC7904  Vaccinium ovatum R. A. Rasp 1964-5-20 43 Humboldt 4 mi. W of Arcata off Lanphere Rd. on Lanphere Ranch Comment
  POM118412  Vaccinium ovatum Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville Comment
  UC1197766  Vaccinium ovatum Joseph P. Tracy 1924-5-4 6672 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC412670  Vaccinium ovatum Mrs. M. H. Manning Apr 1899 Humboldt Hupa Valley Comment
  UC719767  Vaccinium ovatum Rogers McVaugh 1941-8-3 6218 Humboldt 1.25 mi s Headquarters Patrick Point State Park Comment
  UCD118079  Vaccinium ovatum Joseph M. DiTomaso 1976-3-28 349 Humboldt Arcata, beneath Redwood tree. Comment
  UCD166884  Vaccinium ovatum Colleen Rossier 2016-9-16 2 Humboldt Approximately 100 yards above Red Cap Road. Across from gravel entrance to old road, plot Red Cap #1. 264 Comment
  CAS-BOT-BC199406  Vaccinium parvifolium Clarence R. Quick 1959-7-24 59 -35 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  HSC74355  Vaccinium parvifolium Gail Newton 1980-6-17 226 Humboldt Near Onion Mtn. 1341 Comment
  JEPS66684  Vaccinium uliginosum subsp. occidentale Joseph P. Tracy 1935-7-26 14262 Humboldt Water Dogs Lake Trinity Summit 1828 Comment
  RSA30602  Valeriana sitchensis subsp. scouleri Lincoln Constance, R. C. Rollins 1942-5-11 2867 Humboldt 3 miles W of East Fork of Willow Creek. Comment
  JEPS52976  Vancouveria W. L. Jepson 1932-8-1 16471 Humboldt Bull Creek; deep woods at Geant Tree 121 Comment
  HSC3380  Vancouveria hexandra J. F. Knezevich 1968-5-21 448 Humboldt 20 mi. E of Arcata on Hwy. 299 at Lord Ellis Summit Comment
  HSC3383  Vancouveria hexandra Frances Oldridge 1946-1 Humboldt Eureka Comment
  HSC56438  Vancouveria hexandra Griswold, Butler 1979-7-12 7165 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  CAS-BOT-BC76052  Vancouveria hexandra W. R. Dudley 1899-6-1 s.n. Humboldt Unspecified. Comment
  CAS-BOT-BC76090  Vancouveria planipetala Peter H. Raven; R. Snow 1958-7-20 13631 Humboldt Friday Ridge Road to Grouse Mountain, 10.8 miles southwest of junction with United States Highway 299. Comment
  HSC70385  Vancouveria planipetala M. A. Baker 1980-6-7 1860 Humboldt Near Ammon Creek. 732 Comment
  SEINET10932381  Vancouveria planipetala Mary Merello 1993-6-19 Merello 658 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  UC1173641  Veratrum californicum var. californicum Joseph P. Tracy 1934-6-21 13244 Humboldt 2 mi s Field's Landing (at Still Ranch) 6 Comment
  HSC98750  Veratrum californicum var. caudatum Cara Witte 2007-7-20 554 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  HSC57172  Veratrum insolitum Overton, Butler 1979-7-26 9981 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  HSC58115  Veratrum viride G. L. Clifton, Griswold 1979-8-1 12074 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC27420  Verbena lasiostachys Thomas W. Nelson 1970-9-3 213 Humboldt Mad River. Comment
  UC582550  Veronica americana Joseph P. Tracy 1937-7-2 15389 Humboldt ne of Hawkins Bar (Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC21195  Veronica americana P. Markle 1962-5-22 53 Humboldt Along road to City of Arcata reservoir Comment
  SD92993  Veronica americana W. Bertsch 1953-7-30 232 Humboldt Highway 101 near Arcata Comment
  UCR45402  Veronica arvensis Barry Silver 1986-4-23 542 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  HSC21223  Veronica arvensis William J. Ferlatte 1963-5-15 47 Humboldt Waste place near 11th and B Sts., Arcata Comment
  HSC21209  Veronica persica Elrid H. Spinas 1948-5-22 35 Humboldt Horse Mtn. Comment
  HSC21216  Veronica persica Richard Steele 1962-3-18 9 Humboldt 0.25 mi. W of HSC campus 15 Comment
  HSC34650  Veronica persica A. M. Montalvo 1975-4-10 204 Humboldt Vacant lot bordering HSU campus between Union St. and A St. 15 Comment
  HSC72498  Veronica serpyllifolia subsp. humifusa J. P. Smith, Steve Selva 1970-6-30 4135 Humboldt Comment
  HSC102551  Vicia americana var. americana M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1539 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC99295  Vicia americana var. americana Jimerson, J. Pageau 1979-8-10 719 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  UC1197463  Vicia americana var. americana J. P. Tracy 1901-5-30 1111 Humboldt immediate vicinity Eureka 0 Comment
  UC495715  Vicia americana var. americana Joseph P. Tracy 1932-7-13 10509 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC15266  Vicia gigantea S. R. Johnson 1965-3-28 21 Humboldt 1.5 mi. N of Luffenholtz Beach Comment
  SEINET12157875  Vicia hirsuta J. P. Tracy 1944-1 17474 Humboldt slowly spreading in Eureka (same place as # 17428) Comment
  HSC15257  Vicia sativa subsp. nigra C. Kline 1970-10-28 49 Humboldt North Bank Rd., 3 mi. W of Blue Lake, Mad River gravel bottoms Comment
  UCD108854  Vicia sativa subsp. nigra Linda M. Barker 1976-5-13 1481 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCR104583  Vicia sativa subsp. nigra A. R. Alexander 1998-4-9 10 Humboldt US Highway 101 and Giuntoli Lane, near shopping center, Arcata 152 Comment
  HSC38931  Vicia sativa subsp. nigra Linda M. Barker 1976-5-13 1481 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  HSC71615  Vicia sativa subsp. nigra J. P. Smith 1973-5-26 6831 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC2104  Vicia sativa subsp. sativa C. B. Wolf 1927-8-28 1185 Humboldt Eureka Bay, on the road to Arcata Comment
  JEPS66196  Vicia tetrasperma Joseph P. Tracy 1916-5-31 4688 Humboldt Stitz Creek Northern Coast Ranges Eel River (along Eel River from South Fork to Scotia) 60 Comment
  UC1761428  Viola Milo S. Baker 1923-7-30 Humboldt 1/2 mi W of Fredericksons House (near Hwy from Eureka to Bridgeville on Van Dusen River) Comment
  CDA11191  Viola adunca G. F. Hrusa, N. Kang 1992-3-14 9380 Humboldt StageCoach Hill annex of Prairie Creek Redwoods State Park. Comment
  HSC102013  Viola adunca M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 914 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC21763  Viola adunca Doris K. Kildale 1926-3-27 1662 Humboldt Gans Prairie - Bald Hills Comment
  HSC21771  Viola adunca J. J. Wagoner 1965-4-3 10 Humboldt 16 mi. N of Trinidad, W of Hwy. 101 in Dry Lagoon State Beach Park 6 Comment
  UC1198463  Viola adunca Joseph P. Tracy 1926-3-14 7384 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  SEINET11980785  Viola adunca f. adunca Unknown 1936-1 13040 Humboldt Fields Landing Comment
  HSC90169  Viola cuneata Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-27 57 Humboldt Horse Mtn. Summit; Rd. 6N36, 1 mi. N of Titlow Hill Rd. 1494 Comment
  POM161057  Viola cuneata Joseph P. Tracy 1926-6-6 7560 Humboldt Hoopa Mountain. On road west from Hoopa Valley. 915 Comment
  HSC64215  Viola glabella J. O. Sawyer, M. A. Ericksen 1979-6-23 3386 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  JEPS50368  Viola glabella W. L. Jepson 1902-7-16 2057 Humboldt Trinity Summit 2133 Comment
  SBBG4803  Viola glabella H. and M. Dearing 1933-5-16 1087 Humboldt near Weott Comment
  UCD164670  Viola glabella R. John Little; C. Little 1991-5-27 6484 Humboldt Kneeland Road ca. 3 mi E of Kneeland. (Exact location unknown. Coordinates estimated by label maker). 701 Comment
  CAS-BOT-BC536497  Viola glabella W. R. Dudley 1899-6-19 s.n. Humboldt Shady Run -- Scotia Comment
  UC1761732  Viola hallii H. E. Parks 1934-6-27 5255 Humboldt Grouse Mountain Comment
  RSA254792  Viola hallii Thomas W. Nelson 1974-5-7 1234 Humboldt Beside the airstrip at Kneeland Prairie. Comment
  HSC103112  Viola macloskeyi M. Mesler 2010-7-15 835 Humboldt Near Blake Mtn, FS rd N01 off rd 4N12 Comment
  HSC81726  Viola ocellata Thomas W. Nelson, Jane P. Nelson 1980-5-25 5255 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  UC164820  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1908-6-9 2667 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC183611  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1913-6-19 4204 Humboldt in Valley of Van Duzen River (opposite Buck Mountain); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  HSC21852  Viola sempervirens H. E. Parks May 1936 5677 Humboldt Spruce Cove, Trinidad. Comment
  UC35300  Viola sempervirens Chesnut and Drew 1888-7-8 Humboldt Kneeland Prairie Comment
  UC727172  Viola sempervirens A. A. Heller 1924-7-23 13877 Humboldt Trinidad Head Comment
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  HSC12233  Viola sempervirens Gary J. Stebbins 1970-2-2 3 Humboldt In Big Lagoon Park 2.7 mi. W of U.S. 101 Comment
  RSA244947  Viola sempervirens Norman Dennis 1965-5-8 55 Humboldt 0.1 mile west of Lord Ellis Summit on Hwy 299. Comment
  UC1103559  Viola sheltonii Joseph P. Tracy 1933-6-13 12586 Humboldt near summit of Hoopa Mountain (on road from Hoopa westward to Bair's) 1127 Comment
  UC165807  Vitis californica Joseph P. Tracy 1911-7-5 3333 Humboldt Willow Creek Northern Coast Ranges ((tributary of Trinity River), near its mouth) 152 Comment
  UC212888  Vulpia bromoides Joseph P. Tracy 1919-4-27 5132 Humboldt Humboldt Bay Northern Coast Region (Ocean Beach) Comment
  UCD93456  Vulpia bromoides A. A. Beetle; G. L. Stebbins Jr., J. P. Tracy 1942-6-2 3459 Humboldt near Loleta Swamp, south of Eureka. Comment
  UCD93467  Vulpia bromoides Harley P. Chandler 1901-5-1 1175 b Humboldt Humboldt County. 30 Comment
  SEINET10604431  Vulpia microstachys var. ciliata Joseph P. Tracy 1913-6-18 Tracy 4194 Humboldt Northern Coast ranges of California. Dinsmore's Ranch; in valley of Van Duzen River Opposite Buck Mountain. In dry gully. Not common. 762 Comment
  UC1145199  Vulpia microstachys var. microstachys Joseph P. Tracy 1936-6-17 1496 1/2 Humboldt nw slope Buck Mountain (Burr Valley); Burr Valley 1066 Comment
  CAS-BOT-BC184233  Vulpia microstachys var. pauciflora Joseph P. Tracy 1926-5-2 7440 Humboldt Trinity River Valley, near the South Fork 182 Comment
  RSA121356  Vulpia microstachys var. pauciflora H. L. Person 1932-5-11 s.n. Humboldt Near Arcata 0 Comment
  HSC71718  Vulpia myuros M. A. Baker 1980-6-26 2446 Humboldt Near Sims Creek 610 Comment
  HSC9929  Vulpia myuros C. R. Ball, J. P. Tracy, H. E. Parks 1932-5-17 1344 Humboldt Trinity River, near bridge on Trinity Highway 152 Comment
  CAS-BOT-BC128814  Whipplea modesta L. R. Abrams 1916-7-11 6016 Humboldt Mouth of Grizzly Creek on Van Duzen River - Redwood Forest Comment
  CAS-BOT-BC128818  Whipplea modesta M. S. Jussel 1931-5-2 91 Humboldt Sylvandale, 8 miles n. of Garberville Comment
  HSC20448  Whipplea modesta J. Sandborg, F. Sandborg May 1968 10 Humboldt Bluff Creek near Notice Creek 793 Comment
  HSC97495  Whipplea modesta Cara Witte 2007-5-29 133 Humboldt Along National Forest 1. Approximately 1/2 mile south of White Oak Opening. 1251 Comment
  UC1198904  Whipplea modesta Joseph P. Tracy 1949-5-8 18294 Humboldt open flat by old Strong's District Schoolhouse (5 mi e of town); Carlotta 60 Comment
  UC1541295  Whipplea modesta H. E. and S. T. Parks May, 1930 753 Humboldt along roads adjacent to Van Duzen River Comment
  BLMAR681  Wyethia angustifolia Jennifer Wheeler 2013-6-25 681 Humboldt Humboldt County, Mattole Road, north side of Capetown 202 Comment
  CAS-BOT-BC382917  Wyethia angustifolia Doris K. Kildale 1926-6-27 2217 Humboldt Laribee Valley 701 Comment
  CAS-BOT-BC382922  Wyethia angustifolia Volney Rattan 1879-1-1 s.n. Humboldt Unspecified Comment
  UC169292  Wyethia angustifolia Joseph P. Tracy 1912-6-9 3657 Humboldt Alton Northern Coast Region, Alton 30 Comment
  SD51273  Xerophyllum tenax Darley F. Howe 1961-8-2 3123 Humboldt 24 miles east of Orick, on Bald Mountain Road. Comment
  CAS-BOT-BC527077  Xerophyllum tenax Joseph P. Tracy 1937-8-15 15665 Humboldt French Camp 1066 Comment
  HSC98861  Zigadenus micranthus Cara Witte 2007-5-29 128 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment



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