Search Results — 2000 specimen records retrieved (1371 records with coordinates)
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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/cch_archive/).
 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
  HSC55121  Abies concolor G. L. Clifton, Griswold 1979-8-1 11916 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 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
  CDA468  Abies grandis George Loughner 2000-10-6 PDR# 023915 Humboldt Ridge, E of Blue Lake. 0 Comment
  UC1134161  Abies grandis G. T. Nordstrom 1937-7-1 1420 Humboldt 2.5 mi ne Orick; Orick Quad. 152 Comment
  HSC12834  Abies magnifica Thomas W. Nelson, Wilbur Peterson 1970-12-2 296 Humboldt HSC Campus, W side of tennis court Comment
  UCD109781  Abronia latifolia Linda M. Barker 1976-5-13 1490 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA0025094  Abronia latifolia Robert F. Thorne, P. C. Everett 1965-8-5 35170 Humboldt Samoa Dunes. 3 Comment
  RSA246857  Abronia umbellata subsp. breviflora Robert F. Thorne, P. Everett 1965-8-7 35216 a Humboldt Samoa Peninsula. 0 Comment
Read comments
Jan 13 2015
  CAS-BOT-BC330565  Acer circinatum W. R. Dudley 1899-6-21 s.n. Humboldt Englewood Creek, Eel River Comment
  HSC2790  Acer circinatum Doris K. Kildale 1925-6-24 750 Humboldt Fortuna, Carson Woods Comment
  RSA386075  Acer circinatum H. E. McMinn 1931-6-28 2549 Humboldt Orick to Requa Comment
  UC1585407  Acer circinatum R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 UCBG 30 Humboldt sw of Hoopa (on Bair Rd.); Pine Ridge Summit, sw of Hoopa 990 Comment
  UC502961  Acer circinatum Joseph P. Tracy 1928-5-6 8427 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 609 Comment
  HSC58053  Acer glabrum var. torreyi G. L. Clifton, Griswold 1979-8-1 11919 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC2817  Acer macrophyllum D. E. Anderson 1962-3-17 1933 Humboldt 3 mi. W of Bridgeville along Hwy. 36 Comment
  HSC69577  Acer macrophyllum R. Kalal 1980-6-1 9 Humboldt S side of Essex Pond 15 Comment
  SFV18469  Acer macrophyllum C. Lee 2002-4-21 20 Humboldt Titlow Hill Road, 0.25 miles southeast of intersection with Highway 299. Hillside near road. Comment
  SEINET10905085  Achillea Mary Susan Taylor 1990-8-22 Taylor 6073 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  CAS-BOT-BC28579  Achillea millefolium Ashley Colt Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC37924  Achillea millefolium Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  HSC53792  Achillea millefolium Griswold, Butler 1979-7-10 6204 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  HSC57017  Achillea millefolium Overton, Butler 1979-7-24 9624 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC89470  Achillea millefolium P. A. Daly 1986-3-12 97 Humboldt Trinidad Head, along trail 61 Comment
  UCD128345  Achillea millefolium James P. Smith; Advanced Plant Taxonomy Class 1973 1973-5-26 6797 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC60005  Achillea millefolium M. A. Baker 1978-5-20 562 Humboldt East side of Klamath River Comment
  HSC68080  Achillea millefolium J. P. Smith, Steve Selva 1970-6-30 4103 Humboldt Comment
  UC169910  Achlys californica Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5397 Humboldt Hubbard's Station Comment
  CAS-BOT-BC400020  Achlys triphylla Doris K. Kildale 1928-5-19 5158 Humboldt Chalk Mountain Comment
  HSC70631  Achlys triphylla R. York 1980-5-18 585 Humboldt Near Black Mtn. 390 Comment
  HSC81935  Achlys triphylla Thomas W. Nelson, Jane Nelson 1979-7-3 4958 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  SEINET8072990  Achlys triphylla W. Roderick 1967-7-22 s.n. Humboldt Ca 5 miles E of Carlotta. 46 Comment
  CAS-BOT-BC210654  Achnatherum lemmonii Joseph P. Tracy 1933-6-13 12597 Humboldt Hoopa Mountain. Near summit on road from Hoopa westward to Bair's 1066 Comment
  UC1152042  Achnatherum lemmonii Joseph P. Tracy 1951-6-26 19598 Humboldt n side of Board Camp Mountain at extreme head of Redwood Creek Board Camp Mountain, Redwood Creek Comment
  UC34152  Achnatherum lemmonii Joseph Burtt Davy 1899-6-8 5348 Humboldt Harris Comment
  UC1541542  Achnatherum lettermanii Harold E. Parks July 1934 4926 Humboldt Grouse Mountain 1371 Comment
  UC902107  Aconitum columbianum Joseph P. Tracy 1949-8-11 18459 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC418768  Aconogonon phytolaccifolium Joseph P. Tracy 1933-7-26 12921 Humboldt Grouse Mountain 1524 Comment
  HSC55739  Actaea rubra G. L. Clifton, Griswold 1979-7-26 10241 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  CAS-BOT-BC62291  Adiantum aleuticum Carl B. Wolf 1927-8-28 1170 Humboldt On grade 9 mi. from Willow Creek, Lord Ellis Road to Blue Lake Comment
  HSC37414  Adiantum aleuticum Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 508 Humboldt Along Lost Man Creek. 38 Comment
  CAS-BOT-BC62296  Adiantum aleuticum J. H. Thomas 1949-6-12 903 Humboldt Under bridge on Boyce Creek, near Klamath River (near town of Orleans) Comment
  UC62716  Adiantum aleuticum Joseph Burtt Davy and Walter C. Blasdale 1899-6-12 5455 Humboldt near Camp Grant Comment
  UCSB29352  Adiantum aleuticum Phelps, M. 1972-3-22 Humboldt Throughout Telegraph Creek off Black Sands Road, Shelter Cove 45 Comment
  CAS-BOT-BC30384  Ageratina occidentalis Henry M. Pollard 1948-7-28 s.n. Humboldt Near Orleans Comment
  HSC34743  Ageratina occidentalis Thomas W. Nelson 1974-7-19 1672 Humboldt McKeown Ranch N of Dinsmore Comment
  SD62068  Agoseris apargioides var. maritima Darley F. Howe 1965-8-7 4121 Humboldt Orick. Comment
  SEINET202732 Image available Agoseris grandiflora Joseph P. Tracy 1945-7-15 17513 Humboldt Trinty River Valley at Willow Creek. 152 Comment
  CAS-BOT-BC29625  Agoseris grandiflora var. grandiflora Henry M. Pollard 1927-7-3 3648 Humboldt Between Orleans and Van Fleet Ranch Comment
  UC1125462  Agoseris grandiflora var. grandiflora H. L. Person 1932-7-20 19460 Humboldt highway near Korbel; Eureka Quadrangle Comment
  UC1222928  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1950-7-15 19047 Humboldt 1 mi n Willow Creek; Trinity River Comment
  OBI6921  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1949-6-25 18344 Humboldt 1 mi W of Mud Springs (to Box camp on W slope of Trinity summit) Comment
  UC1222760  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1949-7-19 18392 Humboldt 1/4 mi se Clear Lake; Grouse Mountain 1524 Comment
  UC165754  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1909-8-1 3070 Humboldt edge of grain field Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC275457  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1925-5-30 7019 C Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  UC582743  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1927-5-14 3030 A Humboldt at Willow Creek; Trinity River Valley 152 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
  UCD51860  Agrostis capillaris A. H. Murphy 1947-8-5 s.n. Humboldt McComb Ranch, Bald Hills, 7-8 miles SE of Orick. Comment
  HSC8836  Agrostis densiflora D. C. Juve 1964-5-16 41 Humboldt Camp Tish-Tang, Campbell Creek Ranger Station, off Hwy 96 Comment
  RSA10025  Agrostis densiflora Joseph P. Tracy 1927-7-17 8271 Humboldt Three Cabins; Chaparral Mountain Comment
  RSA183627  Agrostis densiflora D. E. Anderson 1965-9-5 4073 Humboldt Along Mad River, ca. 3 miles south of Blue Lake. Comment
  HSC8790  Agrostis exarata H. E. Parks, S. T. Parks Jun 1952 7553 Humboldt Spruce Cove, Trinidad 61 Comment
  RSA53834  Agrostis exarata Henry M. Pollard 1946-8-13 s.n. Humboldt Pond near Harley Place. Orleans region. Comment
  UC552713  Agrostis exarata Joseph P. Tracy 1935-5-25 13857 1/2 Humboldt Fort Seward 106 Comment
  UC33734  Agrostis hallii Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5723 Humboldt Supply Creek Comment
  UC526881  Agrostis hallii Joseph P. Tracy 1925-8-22 7237 Humboldt North Fork of Eel River, around Humboldt Bay Northern Coast Region, Humboldt Bay 30 Comment
  RSA10028  Agrostis microphylla Joseph P. Tracy 1932-6-14 10145 Humboldt Mountainside west of mouth of South Fork of Trinity River 610 Comment
  HSC58832  Agrostis pallens Overton, Butler 1979-8-2 12693 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC552753  Agrostis pallens Joseph P. Tracy 1934-7-13 13396 Humboldt in sedge swamp North Coast Ranges, Dows Prairie 60 Comment
  RSA10066  Agrostis stolonifera Joseph P. Tracy 1932-8-21 10363 Humboldt Three Cabins, on lower western foothills of Chaparral Mountain; North Coast Range 457 Comment
  RSA15570  Agrostis stolonifera C. B. Wolf 1927-8-28 1189 Humboldt Eureka Bay on road to Arcata Comment
  RSA313196  Agrostis stolonifera Malcolm A. Nobs, S. Galen Smith 1949-8-3 1168 Humboldt 1 mile south of Fields Landing, Eel River valley Comment
  SBBG21792  Ailanthus altissima D. Myrick 1964-7-26 978 Humboldt Hwy 299, ca. 15 mi E of Arcata 762 Comment
Read comments
Feb 4 2016
  HSC8856  Aira caryophyllea T. L. Ackerman 1964-5-15 50 Humboldt Sand dunes across from Fairhaven sign Comment
  RSA256715  Aira caryophyllea L. Hall 1975-5-24 379 Humboldt Samoa Dunes; coastal strand. Dunes off Samoa Blvd. across from the boat landing Comment
  RSA32868  Aira caryophyllea A. A. Heller 1923-7-8 13765 Humboldt Humbolt Camp, 10 miles South of Dyerville Comment
  UC1103303  Aira caryophyllea J. P. Tracy 1899-7-22 330 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC33761  Aira praecox Ron Ralston 1975-5-24 81 Humboldt Samoa Dunes off Samoa Blvd., across from boat landing Comment
  UC1103305  Aira praecox Joseph P. Tracy 1935-6-8 13942 Humboldt Santa Clara Tract Northern Coast Ranges, Eureka 0 Comment
  UC176166  Allium amplectens Joseph P. Tracy 1912-7-26 3844 Humboldt Lawrence Creek Northern Coast Ranges, Kneeland Prairie, Lawrence Creek 762 Comment
  HSC100545  Allium bolanderi Carl C. Marshall May 1885 115 Humboldt Bear River Region. Comment
  HSC98539  Allium falcifolium Cara Witte 2008-6-9 697 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1509 Comment
  HSC79055  Allium siskiyouense D. K. Imper 1984-5-17 Humboldt Sims Mountain 1280 Comment
  NY247883  Allium stenanthum V. K. Chesnut 1888-7-19 s.n. Humboldt Pilot Ridge Comment
  UC202013  Allium unifolium Joseph P. Tracy 1918-7-5 5004 Humboldt banks along Mattole River Northern Coast Ranges, White Thorn Valley, Mattole River 304 Comment
  HSC102015  Allium validum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 916 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  UC412886  Allotropa virgata Mrs. M. H. Manning 1901-1 Humboldt Hupa Comment
  CAS-BOT-BC171311  Alnus incana subsp. tenuifolia Milo S. Baker 1927-8-21 2487 a Humboldt Brush Mt. 914 Comment
  CAS-BOT-BC171312  Alnus incana subsp. tenuifolia Joseph P. Tracy 1927-8-22 8335 Humboldt Bald Mountain; In cold wet meadow near High Prairie 1066 Comment
  CAS-BOT-BC169534  Alnus rubra Doris K. Kildale 1929-2-28 6946 Humboldt Arcata - State Teachers College Comment
  CDA30678  Alnus rubra M. K. Beyers, I. Shepardson 2009-9-13 242 Humboldt On the western side of the Eel River, on dry, higher ground, adjacent to the entrance of an inlet creek, that runs underneath State Route 254 (Avenue of the Giants) and Highway 101 here. 0 Comment
  HSC65138  Alnus rubra J. P. Smith 1971-10-9 4986 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC81811  Alnus rubra Kenneth Clark 1980-6-14 692 Humboldt N Fork of Dead Man's Gulch; throughout Shelter Cove 61 Comment
  RSA1807  Alnus rubra C. B. Wolf 1930-10-26 1767 Humboldt south edge of Big Lagoon, near the Redwood highway bridge. 3 Comment
  UC275559  Alnus rubra Joseph P. Tracy 1923-2-25 6150 Humboldt near Carlotta; Northern Coast Ranges, Van Duzen River 30 Comment
  UCSC000176  Alnus rubra G. T. Nordstrom 1933-6-30 1425 Humboldt 1 mile N.N.E. of Orick 3 Comment
  UC207704  Alopecurus geniculatus Joseph P. Tracy 1917-6-17 4816 Humboldt Salmon Creek Northern Coast Ranges, Salmon Creek 15 Comment
  HSC8894  Alopecurus pratensis D. J. McVean 1965-5-18 78 Humboldt Old Arcata Rd., S of intersection with Indianola Rd. Comment
  UC132197  Amaranthus albus Joseph P. Tracy 1907-8-20 2598 Humboldt near Hydesville; Northern Coast Region 60 Comment
  SEINET11855057  Ambrosia artemisiifolia J. P. Tracy 1950-1 19313 Humboldt Frank Graham's place. Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC13700  Ambrosia chamissonis W. S. Cooper 1925-7-28 102 Humboldt Cape Mendocino Comment
  HSC35628  Ambrosia chamissonis Thomas W. Nelson, James Nelson 1975-8-5 2141 Humboldt Along south spit of Humboldt Bay ca. 1 mile N. of Table Bluff Comment
  HSC40260  Ambrosia chamissonis Linda M. Barker 1976-8-2 1674 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  JEPS40954  Ambrosia chamissonis Joseph P. Tracy 1934-10-21 13688 Humboldt along coast in front of s end of Stone Lagoon; Dry Lagoon, Stone Lagoon 3 Comment
  UC204869  Ambrosia chamissonis Joseph P. Tracy 1918-7-1 4979 Humboldt 3 mi s, sw slopes Point of Cape; Cape Mendocino 3 Comment
  UC582625  Ambrosia chamissonis Joseph P. Tracy 1934-10-21 13688 Humboldt s end, along coast at Dry Lagoon Stone Lagoon 3 Comment
  CAS-BOT-BC142884  Amelanchier alnifolia var. semiintegrifolia Doris K. Kildale 1927-7-17 3756 Humboldt Bug Creek 792 Comment
  HSC70814  Amelanchier alnifolia var. semiintegrifolia Gail Newton 1980-7-24 1778 Humboldt Near Somes Mtn. 1615 Comment
  SDSU19194  Amelanchier alnifolia var. semiintegrifolia Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3011 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. 0.3 mile south-southeast of Cold Spring. Ca. 3.3 aerial miles south-southeast of Horse Mtn. Radio Tower. 1426 Comment
  HSC32334  Amelanchier pallida D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5617 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC56096  Amelanchier pallida G. L. Clifton 1979-7-31 11803 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC14217  Amelanchier utahensis Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  CHSC2118  Ammophila arenaria M. Anthony 1960-5-14 Humboldt Near 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
  UCR121763  Ammophila arenaria George K. Helmkamp, E. A. Helmkamp 2001-7-8 7024 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  UC199415  Amsinckia P. E. Goddard 1907-6-5 F 117 Humboldt Van Duysen Comment
  UC545822  Amsinckia menziesii var. menziesii H. E. Parks March, 1933 4282 Humboldt Trinidad Comment
  HSC17822  Anagallis arvensis D. K. Smith 1968-3-2 7 Humboldt Plaza Ave., Arcata Comment
  UC1125515  Anaphalis margaritacea H. L. Person 1931-7-30 Humboldt Fieldbrook; Eureka Quad. Comment
  SEINET10904828  Anaphalis margaritacea Mary Susan Taylor 1977-8-2 Taylor 1427 Humboldt In mountains above and east of Eureka. Comment
  CAS-BOT-BC391786  Anemone deltoidea Mrs. H. C. Cantelow 1936-5-17 s.n. Humboldt 4 1/2 miles east of Orick Comment
  JEPS55207  Anemone deltoidea W. L. Jepson 1934-5-7 16690 Humboldt Bull Creek Comment
  POM118715  Anemone deltoidea Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  UC1051574  Angelica genuflexa Joseph P. Tracy 1948-9-12 18206 Humboldt Trinity Summit, at Box Camp Trinity Summit; , Box Camp 1463 Comment
  UC582654  Angelica genuflexa Joseph P. Tracy 1937-8-22 15670 Humboldt 2 mi s of Fields Landing 6 Comment
  UC582660  Angelica genuflexa Joseph P. Tracy 1937-9-30 15690 Humboldt Dow's Prairie 60 Comment
  JEPS12244  Angelica hendersonii Joseph P. Tracy 1938-8-28 16133 Humboldt Trinidad 3 Comment
  JEPS14103  Angelica hendersonii Joseph P. Tracy 1936-10-24 15205 Humboldt Table Bluff 91 Comment
  CAS-BOT-BC271452  Anisocarpus madioides Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC271500  Anisocarpus madioides A. G. Vestal 1937-6-20 s.n. Humboldt 4 miles north of Petrolia Comment
  CAS-BOT-BC271451  Anisocarpus madioides Henry M. Pollard 1948-7-23 s.n. Humboldt Perch Creek canyon, near Orleans Comment
  CAS-BOT-BC271491  Anisocarpus madioides Doris K. Kildale 1927-5-17 3184 Humboldt Fish Creek near Garberville Comment
  HSC58749  Antennaria argentea Overton, Butler 1979-7-24 9595 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC82122  Antennaria microphylla Thomas W. Nelson 1979-7-11 4998 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC41291  Antennaria suffrutescens Brad Klipfel 1974-7-27 489 Humboldt Horse Mtn. Comment
  JEPS89480  Antennaria suffrutescens Dean W. Taylor 1991-8-15 12303 Humboldt ridge 1 mi. w. Horse Mt.; N. Coast Ranges 1493 Comment
  RSA167204  Anthemis cotula Joseph P. Tracy 1946-8-25 17643 Humboldt Gravel bar of Eel River at mouth of Van Duzen River Comment
  SACT000343  Anthoxanthum odoratum Malcolm Nobs, S. Smith 1949-8-3 Humboldt Salt marshes bordering Humboldt Bay, 2 miles north of Eureka Comment
  HSC37848  Anthriscus caucalis Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  RSA33406  Antirrhinum vexillocalyculatum subsp. breweri Doris K. Kildale 1928-10-19 6953 Humboldt Miranda. Comment
  UCR46782  Antirrhinum vexillocalyculatum subsp. breweri D. M. Thompson 1983-6-26 354 Humboldt Kneeland Road 9.1 mi south of jct with Mountain View Road. 446 Comment
  UC154129  Aphanes occidentalis J. P. Tracy 1904-4-24 2033 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa Comment
  UC1198740  Aphanes occidentalis Joseph P. Tracy 1918-4-12 4876 Humboldt near Fish's Mill Creek (Dows Prairie); Northern Coast Ranges 30 Comment
  BLMAR205  Apocynum androsaemifolium Jennifer Anthony-Wheeler 1996-7-9 205 Humboldt Pilot ridge., growing along rd side 1219 Comment
  HSC75563  Aquilegia formosa Kenneth Clark 1980-6-14 666 Humboldt On western slope above Dead Man's Gulch (near parking access) 145 Comment
  HSC6529  Arabis divaricarpa J. P. Tracy 1932-7-12 10391 Humboldt Trinity Summit 1524 Comment
  HSC53858  Arabis glabra Griswold, Butler 1979-7-10 6329 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC6527  Arabis glabra D. E. Anderson 1962-7-10 2245 Humboldt Luffenholtz Beach, about 2 mi. S of Trinidad along old Hwy. 101 Comment
  HSC100458  Arabis perfoliata Carl C. Marshall Jun 1887 403 Humboldt Harris. Comment
  UC420602  Aralia californica P. E. Goddard 1901-7-6 17 Humboldt Hupa Comment
  UCR32149  Arbutus menziesii David J. Keil 1983-7-1 17263 Humboldt North Coast Range, Bull Creek Flats Road, c. 8 mi west of junction US 101 Comment
  HSC98835  Arceuthobium campylopodum Cara Witte 2008-7-25 926 Humboldt Horse Mountain Botanical Area. Along Forest Service Road 6N36A. Near intersection with Forest Service Road 6N36B. 1355 Comment
  UC582721  Arctostaphylos Joseph P. Tracy 1937-4-3 15247 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC902044  Arctostaphylos Joseph P. Tracy 1949-8-4 18406 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  HSC33153  Arctostaphylos canescens Thomas W. Nelson, Brad Klipfel, Jane Cole 1974-5-8 1248 Humboldt Horse Mtn. area, E of microwave tower 1220 Comment
  SD42342  Arctostaphylos canescens Carl B. Wolf 1937-9-13 9335 Humboldt North Coast Range, Horse Mountain. 1525 Comment
  CAS-BOT-BC24096  Arctostaphylos canescens subsp. canescens Joseph P. Tracy 1949-8-4 18405 Humboldt Trinity Summit, ridge top one mile west of Mud Springs. 1158 Comment
  CAS-BOT-BC23777  Arctostaphylos columbiana J. P. Tracy 1909-3-7 2944 Humboldt Immediate vicinity of Eureka 152 Comment
  CAS-BOT-BC23799  Arctostaphylos columbiana E. K. Balls; L. W. Lenz 1955-5-16 20746 Humboldt 24.6 mie. SE of Shelter Cove, Coast Road to Rockport 457 Comment
  CAS-BOT-BC23818  Arctostaphylos columbiana Joseph P. Tracy 1940-7-14 16688 Humboldt Wilder Ridge (near Kings Peak) 762 Comment
  CAS-BOT-BC23822  Arctostaphylos columbiana Carl B. Wolf 1930-10-29 1040 Humboldt Old Coast Road, 7 miles south of Honeydew Post Office. 304 Comment
  HSC7722  Arctostaphylos columbiana H. E. Parks Feb 1934 4774 Humboldt Spruce Cove, Trinidad Comment
  LA42321  Arctostaphylos columbiana H. E. Parks; 1931-3-25 917 Humboldt near Patrick's Point Comment
  RSA134585  Arctostaphylos columbiana P. C. Everett, E. K. Balls, George B. Everett 1959-10-26 23975 Humboldt 4 mi. se from Honeydew along Old Coast Road to Ettersburg. 457 Comment
  RSA622677  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27669 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
  UC549499  Arctostaphylos columbiana J. E. Adams 1935-5-12 1047 Humboldt Patrick's Point Comment
  UC549500  Arctostaphylos columbiana J. E. Adams 1935-5-12 1046 Humboldt Patrick's Point Comment
  CAS-BOT-BC23738  Arctostaphylos columbiana C. Hart Merriam 1921-7-7 s.n. Humboldt Ridges west of Van Duzen River. Comment
  RSA134600  Arctostaphylos columbiana var. columbiana P. C. Everett, E. K. Balls, George B. Everett 1959-10-25 23965 Humboldt 8.8 mi. NE from Blue Lake, U.S. Hwy, 299, Arcata to Willow Creek. 274 Comment
  UCSB11765  Arctostaphylos manzanita Nelson, R. 1950-7-26 Humboldt 0.5 mile northwest of Neafus Peak 762 Comment
  CAS-BOT-BC38831  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1926-6-27 2198 Humboldt Sweasey Lake - McClellan Mountain 792 Comment
  CAS-BOT-BC38836  Arctostaphylos manzanita subsp. manzanita C. Hart Merriam 1926-9-15 s.n. Humboldt Junction, South fork of the Trinity and Trinity River 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
  JEPS38953  Arctostaphylos nevadensis Joseph P. Tracy 1927-5-15 8059 Humboldt on road w from Hoopa Valley Hoopa Mt. 914 Comment
  UC1173710  Arctostaphylos nevadensis Joseph P. Tracy 1939-8-16 16405 Humboldt Horse Mountain 1432 Comment
  UC1602024  Arctostaphylos nevadensis J. W. Congdon 1904-7-23 Humboldt <illegible> Eureka Comment
  SBBG83920  Arctostaphylos nevadensis subsp. knightii R. Gankin, W. R. Hildreth 1967-10-26 1179 Humboldt French Camp Ridge, 21.4 mi E of US 101 on Bald Hills Rd from Orick Comment
  UCD52857  Arctostaphylos nevadensis subsp. knightii Roman Gankin; W. R. Hildreth 1976-10-26 1177 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road from Orick; French Camp Ridge. Comment
  UCD52862  Arctostaphylos nevadensis subsp. knightii Roman Gankin; W. R. Hildreth 1967-10-26 1173 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road from Orick; French Camp Ridge. Comment
  SEINET11995486  Arctostaphylos nevadensis subsp. knightii W. Knight, Knight, I. 1988-1 6360 Humboldt 21 mi up Bald Hill Rd from US 101 en route to Hoopa 975 Comment
  HSC99037  Arctostaphylos nevadensis subsp. nevadensis C. Witte 2008-10-18 1058 Humboldt Along National Forest 1. 1/4 mile south of intersection with 6N35. Near Horse Mountain Botanical Area. 1480 Comment
  HSC7699  Arctostaphylos patula J. Pursell 1964-11-1 11112 Humboldt Near Orleans, intersection of Hwy. 96 and Eyesee Rd. Comment
  HSC7704  Arctostaphylos patula J. Pursell 1964-10-17 10171 Humboldt Hoopa in Hoopa Valley Comment
  HSC100469  Arctostaphylos pungens Carl C. Marshall Apr 1886 383 Humboldt Hoopa Valley. Comment
  HSC33172  Arctostaphylos uva-ursi Thomas W. Nelson 1974-4-20 1181 Humboldt Elk Head, N of Trinidad Comment
  HSC7731  Arctostaphylos uva-ursi L. H. Myers 1963-5-5 28 Humboldt W of Lanpheres Rd., Mad River slough area Comment
  UC1196870  Arctostaphylos uva-ursi Joseph P. Tracy 1937-9-26 15685 Humboldt near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UCD52029  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17500 Humboldt 45 Comment
  CAS-BOT-BC526230  Arctotheca calendula Larry Pries; Charles Lawrence 1989-6-8 s.n. Humboldt Larry Pries dairy, W of Ferndale, on Centerville Beach Rd Comment
  UC668127  Arenaria congesta var. suffrutescens Joseph P. Tracy 1932-7-12 10478 b Humboldt Head of Brett Hole Trinity Summitt, Brett Hole 1828 Comment
  CAS-BOT-BC64625  Armeria maritima subsp. californica W. R. Dudley 1899-6-1 723 Humboldt Eureka Peninsula. Comment
  HSC16898  Armeria maritima subsp. californica L. H. Myers 1963-5-5 2 Humboldt W of Lanpheres Rd., Mad River slough area Comment
  RSA245251  Armeria maritima subsp. californica David K. Smith 1968-10-11 6 Humboldt 3 mi S of Trinidad. Comment
  HSC48024  Arnica cernua Brad Klipfel 1974-6-25 423 Humboldt Horse Mtn. Comment
  HSC71797  Arnica cernua Gail Newton 1980-6-16 168 Humboldt Near Monks Camp. 1097 Comment
  HSC76342  Arnica cernua Teresa Prendusi 1981-7-9 207 Humboldt Near Cedar Camp 1268 Comment
  HSC96202  Arnica cernua April A. Allard, Gregory O'Connell 2005-6-24 14 Humboldt 4.5 miles south of Hwy. 299 on NF1 at junction at base of radio tower 1421 Comment
  UC275462  Arnica cernua Joseph P. Tracy 1925-6-7 7057 Humboldt near Ruby Creek; Northern Coast Ranges, Willow Creek Canyon 609 Comment
Read comments
Feb 27 2007
  HSC64262  Arnica cordifolia J. O. Sawyer, M. A. Erickson 1979-6-23 3397 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC74699  Arnica discoidea Gail Newton 1981-7-23 2287 Humboldt Near Bug Creek Butte. 1350 Comment
  HSC33626  Arnica discoidea Thomas W. Nelson, Jane P. Nelson 1976-6-15 2730 Humboldt Growing on FS road N of Alder Springs 1524 Comment
  CAS-BOT-BC94772  Arrhenatherum elatius R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 832 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air miles N of Mattole Road, about 3 air miles W of Highway 101 243 Comment
  CAS-BOT-BC97242  Artemisia suksdorfii Carl B. Wolf 1937-9-9 9303 Humboldt Coast, 4 1/2 mi. So. of Cape Mendocino 6 Comment
  POM264601  Artemisia suksdorfii H. E. Parks 1940-05 24178 Humboldt Little River Comment
  POM51270  Artemisia suksdorfii Joseph P. Tracy 1918-7-1 4973 Humboldt Cape Mendocino. Southwestern slopes, fronting the ocean, three miles south of point of the cape 3 Comment
  HSC55850  Aruncus dioicus var. acuminatus G. L. Clifton, Griswold 1979-7-25 10811 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC56089  Aruncus dioicus var. acuminatus G. L. Clifton, Griswold 1979-7-31 11781 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  RSA21567  Aruncus sylvester Doris Kildale Gillespie 1937-09 9368 Humboldt Humboldt Comment
  RSA20965  Aruncus sylvester Carl B. Wolf 1937-9-13 9339 Humboldt N coast range, E Fork of Willow Creek at Forest Service Camp. 457 Comment
  POM318583  Asarum caudatum Patricia Wilder 1968-8-22 4421 Humboldt Coastal rain forest 7 miles S of Ferndale on Mattole Road, N of Cape Mendocino and Capetown, Mt. Range: Bear River Ridge; Drainage Area: Oil Creek to Pacific. 549 Comment
  HSC62996  Asarum caudatum David Wheeler 1979-5-9 100 Humboldt Humboldt State University campus, 1/4 mi. E of the dorms along Jolly Giant Creek Comment
  CHSC97953  Asarum hartwegii D. E. Anderson 1965-5-1 3566 Humboldt Along Hw. 96, 1.9 mi. no. of Willow Creek. Comment
  UC23011  Asclepias speciosa J. Burtt Davy 1899-6-24 5866 Humboldt Hoopa Valley, along the river North Coast Ranges Comment
  SEINET3823300 Image available Aspidium munitum Joseph P. Tracy 1924-8-24 6878 Humboldt East Fork of Willow Creek 457 Comment
  CAS-BOT-BC27578  Astragalus agnicidus Henry Tosten 1931-6-7 s.n. Humboldt 4 miles S of Miranda Comment
  CHSC96713  Astragalus agnicidus Gordon Leppig 2001-6-25 2107 Humboldt PALCO land. UTM Zone 10, 411418E, 4498706N. 700 Comment
  JEPS16847  Astragalus agnicidus J. C. Tario Jr. 1931-8-20 Humboldt 4 mi s Miranda (near Bear Buttes, local on Tosten and Pierce Ranch); near Bear Buttes, s of Miranda, Tosten and Pierce Ranch 762 Comment
  CAS-BOT-BC193133  Astragalus rattanii var. rattanii Volney Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  UC201698  Astragalus rattanii var. rattanii unknown 1884-6-1 Humboldt Black Butte Comment
  CHSC118459  Astragalus umbraticus Courtney Wilson; Matt Groberg, Bob Meinke 2011-6-30 Humboldt On Green Diamond Resourse Company private land. Roadside edge on west slope of French Camp Ridge. 853 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
  HSC41268  Asyneuma prenanthoides Brad Klipfel 1974-7-23 462 Humboldt Horse Mtn. Comment
  HSC57044  Asyneuma prenanthoides Overton, Butler 1979-7-24 9693 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC503069  Athyrium filix-femina var. cyclosorum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9008 Humboldt near McKay Camp S Fork Mt; Northern Coast Ranges 1676 Comment
  RSA246922  Atriplex subspicata R. F. Thorne, P. Everett 1965-8-8 35275 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  RSA10054  Avena barbata Joseph P. Tracy 1933-5-20 12228 Humboldt 3 mi south of point of Cape Mendocino 3 Comment
  HSC9024  Avena fatua W. F. Nickel 1965-5-16 Humboldt N Arcata next to the Humboldt Motor Hotel. Comment
  RSA246915  Azolla filiculoides Robert F. Thorne, Percy C. Everett 1965-8-9 35325 Humboldt Clam Beach County Park: along highway. 3 Comment
  HSC933  Azolla microphylla H. E. Parks 1925-6-24 2763 Humboldt Eureka, Comment
  HSC37666  Baccharis douglasii R. Sutherland 1976-8-19 14 .19876 Humboldt 236 Comment
  HSC5125  Baccharis douglasii Jerry Parker 1968-10-31 225 Humboldt South of Vista Point Comment
  HSC69755  Baccharis douglasii Thomas W. Nelson 1977-9-22 3752 Humboldt At turnoff to Arcata Redwood Co. Comment
  CAS-BOT-BC98033  Baccharis pilularis Henry M. Pollard 1947-8-30 s.n. Humboldt North river - road near Redcap Creek, Orleans region 1 Comment
  UC535754  Baccharis pilularis Eleanor Armstrong 1934-8-30 1200 Humboldt Richardson Grove 121 Comment
  UC1198286  Barbarea orthoceras Joseph P. Tracy 1906-5-6 2443 Humboldt hillside in Wolverton Gulch, near Hydesville 60 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
  HSC28223  Barbarea verna Thomas W. Nelson 1973-4-25 798 Humboldt Beside Hwy. 101 at the Bayside turnoff Comment
  HSC95549  Barbarea vulgaris Andrea Pickart 2002-5-24 107 Humboldt CDFG's Mad River Slough Wildlife Area, Arcata Bottoms 0 Comment
  HSC104290  Bellardia trixago Samantha E. Andres 2016-6-1 9 Humboldt Samoa Peninsula, North Jetty, along the roadside 4 Comment
  CAS-BOT-BC106353  Bellis perennis Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  CHSC67761  Bellis perennis Vernon H. Oswald 1997-2-12 8305 Humboldt Big Lagoon County Park at the SW edge of Big Lagoon. 3 Comment
  JEPS31856  Bellis perennis Joseph P. Tracy 1937-6-20 15345 Humboldt 10 miles up from mouth of Bear River Bear River 152 Comment
  HSC34654  Bellis perennis A. M. Montalvo 1975-4-10 206 Humboldt Vacant lot bordering HSU campus between Union St. and A St. 15 Comment
  HSC89490  Bellis perennis P. A. Daly 1986-2-28 64 Humboldt Trinidad Head, along trail 61 Comment
  UC1198850  Bensoniella oregona Mrs. R. D. Douglas 1920-6-26 Humboldt Murphy Meadow; on Bald Mt., Murphy Meadow 1066 Comment
  UC1198389  Berberis aquifolium var. repens Joseph P. Tracy 1947-7-5 17789 Humboldt ridge top 1 mi w Mud Springs (Trinity Summit) 1158 Comment
  HSC41329  Berberis nervosa Brad Klipfel 1974-8-2 509 Humboldt Horse Mtn. Comment
  CAS-BOT-BC75809  Berberis pinnata L. B. Kildale 1930-7-7 10260 Humboldt Chaparral Mountain at Bug Creek. 914 Comment
  CAS-BOT-BC412988  Bistorta bistortoides Volney Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC412989  Bistorta bistortoides Volney Rattan 1882-1-1 s.n. Humboldt Kneeland Comment
  CDA42493  Blechnum spicant G. D. Barbe, T. C. Fuller 1974-6-18 1874 Humboldt Fern Canyon Road, 2.8 miles west of Highway 101, 5 miles south of Klamath River. 0 Comment
  JEPS35166  Blechnum spicant Milo S. Baker 1923-7-19 83 Humboldt canyon near Wilder's; Mattole River region, sw Humboldt Co. Comment
  UCD140030  Bolboschoenus maritimus subsp. paludosus Gordon Leppig 1998-6-25 851 Humboldt Route 101 milemarker 81.60. East side of highway. 2 Comment
  HSC70782  Boschniakia strobilacea Gail Newton 1980-7-24 1768 Humboldt Near Somes Mtn. 1615 Comment
  HSC100314  Botrychium multifidum Lindsey Holm 2011-10-25 Humboldt Van Eck Forest near Fieldbrook. 7 Comment
  HSC102034  Botrychium multifidum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 937 Humboldt Patterson Meadows 1555 Comment
  HSC12718  Botrychium multifidum C. E. Fellows 1970-10-7 373 Humboldt McKinleyville, 1/8 mi. W of the end of Murray Rd. Comment
  UC667105  Boykinia major Joseph P. Tracy 1937-7-25 15537 Humboldt head of Little Hors-Linto Creek Trinity Summit (Trinity Summit); , head of Little Hors-Linto Creek 1371 Comment
  CAS-BOT-BC420277  Boykinia occidentalis J. P. Tracy 1901-6-30 1210 Humboldt Immediate vicinity of Eureka Comment
  JEPS49652  Boykinia occidentalis Harley P. Chandler June, 1901 1501 Humboldt Klamath River; North Coast Ranges, Klamath River 426 Comment
  UC180219  Brassica nigra Joseph P. Tracy 1914-6-28 4514 Humboldt Near Hydesville; Northern Coast Ranges 60 Comment
  HSC89443  Brassica rapa P. A. Daly 1986-2-23 50 Humboldt Along trails at Trinidad Head 6 Comment
  CAS-BOT-BC106291  Brickellia californica Doris K. Kildale 1925-9-26 1367 Humboldt Mouth of Mad River in coast. Comment
  CAS-BOT-BC106292  Brickellia californica Doris K. Kildale 1926-8-8 2480 Humboldt Dyerville Bridge 45 Comment
  CHSC2124  Briza maxima M. Anthony 1960-5-14 Humboldt Near Arcata. Comment
  HSC38835  Briza minor R. Sutherland 1976-8-13 12 .13876 Humboldt Redwood Creek, Whittemore Grove 87 Comment
  HSC89421  Briza minor P. A. Daly 1984-7-15 32 Humboldt Trinidad Head 61 Comment
  JEPS7737  Brodiaea elegans subsp. elegans Lincoln Constance 1934-5-24 647 Humboldt South Fork Eel River Bull Creek Region, South Fork Eel River 121 Comment
  UC15011  Brodiaea elegans subsp. elegans Harley P. Chandler June, 1901 1413 Humboldt Klamath River North Coast Ranges 304 Comment
  UC1197733  Brodiaea elegans subsp. elegans Joseph P. Tracy 1933-8-30 13014 Humboldt grassy places on Titlow Ridge Grouse Mountain 1432 Comment
  JEPS512  Brodiaea stellaris Joseph P. Tracy 1928-6-24 8474 Humboldt at head Middle Yager Creek (grassy flat); East's Ranch 762 Comment
  UC1197735  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1936-6-9 14893 Humboldt s of point of Cape; Cape Mendocino 3 Comment
  RSA167289  Bromus carinatus Joseph P. Tracy 1951-6-26 19570 Humboldt Twin Lakes vicinity, Snow Camp and Twin Lakes trip. Comment
  HSC9142  Bromus carinatus var. carinatus W. F. Nickel 1965-3-17 Humboldt Humboldt State College campus behind College Elementary School. Comment
  SEINET11683184  Bromus carinatus var. marginatus K. S. Erdman 1970-1 4783 Humboldt Doleson Hill Prairie, Bald Hills Road SE of Orick 853 Comment
  CAS-BOT-BC155847  Bromus catharticus var. elatus W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula. Comment
  HSC9294  Bromus diandrus R. T. Forester 1963-4-30 53 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  CAS-BOT-BC155424  Bromus hordeaceus Henry M. Pollard 1948-7-18 s.n. Humboldt Orleans. Comment
  UC1103363  Bromus hordeaceus Joseph P. Tracy 1933-6-11 12556 Humboldt 4 mi s of Dyerville (South Fork Eel River); North Coast Ranges, South Fork Eel River 60 Comment
  UC1103365  Bromus hordeaceus Joseph P. Tracy 1905-6-4 2187 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  UCD58883  Bromus laevipes Joseph P. Tracy 1950-6-15 18785 Humboldt Mail Ridge. North of Harris 7 miles. 1036 Comment
  CAS-BOT-BC161605  Bromus sterilis Joseph P. Tracy 1933-6-13 12601 Humboldt North Coast Ranges. Bair's Ranch on Redwood Creek. 914 Comment
  UC1145179  Bromus tectorum Joseph P. Tracy 1939-4-29 16248 Humboldt 8 mi below Orleans (near Slate Creek, Klamath River); Klamath River 121 Comment
  HSC75287  Bromus vulgaris J. O. Sawyer, M. A. Ericksen 1980-8-18 4059 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  POM277333  Bromus vulgaris Lyman Benson 1928-7-8 258 Humboldt Weott Ranger Station; Seaword N Coast Mt. Range; S. Fork Eel River. 61 Comment
  SD38262  Cakile edentula var. edentula Edith A. Purer 1932-7-27 4140 Humboldt Samoa Comment
  CAS-BOT-BC36864  Cakile edentula var. edentula Malcom A. Nobs; Stanley Galen [S. Galen] Smith 1949-8-11 1337 Humboldt At easten shore of Stone Lagoon. Comment
  HSC39791  Cakile maritima Peter Sorensen 1976-6-4 Humboldt N Spit of Humboldt Bay Comment
  UCD114936  Cakile maritima M. Barbour 1969-9-4 s.n. Humboldt West of Table Bluff (10 miles south of Eureka). Comment
  HSC9412  Calamagrostis nutkaensis D. E. Anderson 1961-9-13 1808 Humboldt Big Lagoon County Park Comment
  HSC95654  Calandrinia ciliata Andrea Pickart 2002-4-3 43 Humboldt Lanphere Dunes 25 Comment
  UC1922745  Callitriche heterophylla subsp. bolanderi Robert F. Thorne, P. Everett 1965-8-9 35323 Humboldt CLAM BEACH COUNTY PARK: along highway. Comment
  HSC59492  Callitriche stagnalis M. A. Ericksen 1979-4-22 216 Humboldt 1 mi. W of intersection of Mad River Rd. and Iverson, Arcata bottoms, city of Arcata Comment
  HSC62990  Callitriche stagnalis David Wheeler 1979-4-22 80 Humboldt Mad River Slough, 1 mi. W of intersection of Mad River Rd. and Iverson Rd. Comment
  UC1103692  Callitriche trochlearis Joseph P. Tracy 1913-6-23 4277 Humboldt ridge between Van Duzen River and Mad River (Dinsmore's Ranch); Northern Coast Ranges 1066 Comment
  HSC1286  Calocedrus decurrens Elrid H. Spinas 1948-5-22 39 Humboldt Horse Mtn. Comment
  HSC72926  Calocedrus decurrens R. York 1980-5-23 619 Humboldt Near Buck Mtn. 1524 Comment
  CAS-BOT-BC488457  Calochortus amabilis L. R. Abrams 1916-7-11 6980 Humboldt Between Blacksberg + Bridgeville Comment
  HSC15345  Calochortus tolmiei Class 1937-4-29 Humboldt Miranda Comment
  HSC73535  Calochortus tolmiei Gail Newton 1980-7-14 1494 Humboldt Near Last Chance Ridge. 1219 Comment
  UC1197673  Calochortus tolmiei Joseph P. Tracy 1921-4-24 5466 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  UC1197675  Calochortus tolmiei Joseph P. Tracy 1927-6-12 8148 Humboldt Horse Mountain 1280 Comment
  CAS-BOT-BC494363  Calochortus tolmiei Volney Rattan 1882-6-1 s.n. Humboldt Kuseland Comment
  CAS-BOT-BC496522  Calochortus tolmiei R. K. Gierisch; D. H. Esplin 1969-7-1 3530 Humboldt Six Rivers Forest. Grouse Mtn. 1584 Comment
  SEINET6879028  Calochortus tolmiei W. P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie, about 4 miles southeast of Kneeland. Comment
  UC1222547  Calochortus vestae Joseph P. Tracy 1950-6-23 18868 Humboldt 3 mi ne Alderpoint; Dobbyn Creek 213 Comment
  HSC103109  Caltha leptosepala M. Mesler 2010-7-15 832 Humboldt Near Blake Mtn, FS rd N01 off rd 4N12 Comment
  RSA167194  Calycadenia ciliosa Joseph P. Tracy 1948-9-20 18220 Humboldt Hoopa Valley 91 Comment
  UC4379  Calypso bulbosa Harley P. Chandler June, 1901 1280 Humboldt North Coast Ranges, Hupa Indian Reservation Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 1097 Comment
  HSC32932  Calyptridium monospermum Thomas W. Nelson 1973-5-30 973 Humboldt Humboldt/Trinity Co. line, Mt. Lassic 1790 Comment
  UC449948  Calystegia occidentalis subsp. occidentalis Mrs. M. H. Manning 1901-1 Humboldt near Hupa; near Hupa Comment
  SEINET200995  Calystegia polymorpha Joseph P. Tracy 1937-7-24 15531 Humboldt Trinity Summit head of Little Hors-Linto Creek. 1372 Comment
  SD42477  Calystegia soldanella Carl B. Wolf 1937-6-18 8902 Humboldt Centerville Beach. 3 Comment
  UC1173650  Camassia leichtlinii subsp. suksdorfii Joseph P. Tracy 1930-7-17 9000 Humboldt South Fork Mountain; in wet meadow at McKay Camp 1676 Comment
  UC144059  Camissonia contorta Joseph P. Tracy 1908-6 2687 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  RSA79376  Camissonia contorta E. K. Balls, L. W. Lenz 1952-5-12 17202 Humboldt 0.6 mi E of Dinsmore along Hwy 36 from Alton to Red Bluff. Comment
  UC1196941  Camissonia contorta Joseph P. Tracy 1901-4-14 1028 Humboldt Samoa Northern Coast Region, Humboldt Bay Comment
  UC665629  Camissoniopsis cheiranthifolia subsp. cheiranthifolia H. E. Parks August, 1941 24180 Humboldt sand dunes Little River State Park Comment
  JEPS11849  Campanula prenanthoides Lincoln Constance 1934-6-11 854 Humboldt Lower Look Prairie, and Bull Creek road to Dyerville South Fork Eel River, Bull Creek Region Comment
  SEINET10462885  Campanula prenanthoides Baker 1947-8-8 Baker 11925 Humboldt 10 mi along rd. from hwy. 101 N of Orick towards Hoopa. 610 Comment
  SEINET10873282  Campanula prenanthoides Rattan 1878-1 RATTAN s.n. Humboldt Comment
  HSC44272  Cardamine californica Barbara Kelly 1977-4-23 300 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  CHSC110707  Cardamine californica var. californica Dean Wm. Taylor 2004-6-24 19143 Humboldt Spike Buck Mountain, north slope thereof. 1432 Comment
  RSA167405  Cardamine californica var. integrifolia Joseph P. Tracy 1950-5-7 18651 Humboldt On the Redwood House Road, S of Redwood House 1 mile, on Yager Slope. (Head of South Yager Creek). Comment
  CHSC499  Cardamine californica var. sinuata G. Spurlock 1935-3-9 Humboldt Van Duzen river. Comment
  CAS-BOT-BC37896  Cardamine oligosperma J. P. Tracy 1901-4-7 1009 Humboldt Immediate vicinity of Eureka. 152 Comment
  CHSC31270  Cardamine oligosperma Mark Stopher 1980-3-26 41 Humboldt In lowland adjoining Elk River. 1 Comment
  HSC6645  Cardamine oligosperma Lincoln Constance 1934-5-31 745 Humboldt S Fork of the Eel River, Bull Creek Flat, along Bull Creek, W boundary of park to Grasshopper Peak, N side of creek Comment
  CAS-BOT-BC37891  Cardamine oligosperma Doris K. Kildale 1927-3-20 2916 Humboldt Philipsville. Smith Fork of Eel River. Comment
  CAS-BOT-BC37892  Cardamine oligosperma Doris K. Kildale 1927-3-24 2950 Humboldt Fleener Creek. Comment
  HSC6641  Cardamine oligosperma Gerald T. Rood 1962-5-11 3 Humboldt Kneeland Rd., 0.25 mi. E of Barry Rd. Comment
  SEINET10588473  Carex aquatilis var. dives Joseph P. Tracy 1934-7-30 Tracy 13504 Humboldt Dense clumps in wettest places. Dry Lagoon - along coast in front of South End of Stone Lagoon. 3 Comment
  HSC95660  Carex arcta Juha Pykala, D. H. Norris 1987-6-5 1436 Humboldt E of Maple Creek, Lake Prairie 1052 Comment
  JEPS63598  Carex barbarae Lincoln Constance 1934-6-7 772 Humboldt Cabin Creek Bridge, on Bull Creek Road Comment
  RSA88693  Carex bolanderi F. W. Peirson 1932-7-7 10261 Humboldt Willow Creek, a few miles above the town of that name. Comment
  JEPS79836  Carex brainerdii Joseph P. Tracy 1935-7-30 14350 Humboldt on ridge 2 mi sw of top of Salmon Summit; Salmon Summit 1767 Comment
  CAS-BOT-BC110192  Carex buxbaumii Joseph P. Tracy 1927-4-23 7916 Humboldt Big Lagoon. 30 Comment
  CAS-BOT-BC34278  Carex concinnoides Doris K. Kildale 1928-5-1 5988 Humboldt MacLellan Mountain near Bridgeville. 914 Comment
  HSC34955  Carex densa Thomas W. Nelson 1975-5-24 1866 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC38078  Carex densa Thomas W. Nelson, James Nelson 1976-5-30 2629 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1115812  Carex densa Joseph P. Tracy 1938-6-9 15876 Humboldt Dobbyn Creek 152 Comment
  SEINET7557968 Image available Carex echinata subsp. phyllomanica L. P. Janeway 2003-7-30 7943 Humboldt High North Coast Ranges. White Rock Spring, just above Clear Lake, on southwest side below Titlow Hill Road, 2.9 km southeast of Titlow Hill. 1512 Comment
  HSC96492  Carex echinata subsp. phyllomanica Gordon Leppig 1998-6-8 798 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  CHSC42988  Carex exsiccata L. P. Janeway 1987-7-30 2532 Humboldt At Dry Lagoon. Middle of lagoon. 3 Comment
  CAS-BOT-BC20013  Carex feta Joseph Prince Tracy 1935-5-25 13838 Humboldt Fort Seward. 106 Comment
  UC303017  Carex geyeri Joseph P. Tracy 1926-6-20 7639 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  UC1103063  Carex globosa Joseph P. Tracy 1932-5-1 9852 Humboldt 3 mi n Garberville; North Coast Ranges, Redway 182 Comment
  HSC96578  Carex gynodynama Gordon Leppig, Todd Treadwell 2005-6-8 2249 Humboldt Blue Slide Creek watershed, Pacific Lumber Co. land. 245 Comment
  SEINET7561208 Image available Carex gynodynama M. J. Waterway, M. J. Lechowicz 1984-4-22 3057 Humboldt About 10 mi E of Arcata on Maple Creek Road, 6 mi W of jct with Butler Valley Road. Comment
  POM292659  Carex gynodynama Lyman Benson 1929-7-12 1795 Humboldt Weott Ranger Station; S Fork Eel River. Comment
  CAS-BOT-BC20462  Carex harfordii Joseph Prince Tracy 1936-6-5 14858 Humboldt Fickle Hill. 6 miles SE of Arcata. 579 Comment
  CAS-BOT-BC22320  Carex harfordii Joseph Prince Tracy 1935-6-8 13938 Humboldt Eureka. 60 Comment
  HSC76381  Carex hendersonii L. P. Janeway 1982-6-17 9 Humboldt Ca 300 m W of main Arcata Community Forest Road along the road to the HSU water tank. 137 Comment
  UC197213  Carex hendersonii Joseph P. Tracy 1913-5-11 4070 Humboldt at Eureka Northern Coast Region 0 Comment
  CHSC90283  Carex hoodii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8534 Humboldt North Coast Ranges. Along Forest Road 13N01 18 miles from junction with State Route 96. 1066 Comment
  CAS-BOT-BC7844  Carex infirminervia Joseph Prince Tracy 1935-7-23 14162 Humboldt Trinity Summit. Wooded hillsides, lower end of Brett Hole. 1584 Comment
  CHSC90285  Carex laeviculmis Thomas W. Nelson; Jane P. Nelson 1987-6-11 8579 A Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  CHSC90274  Carex lenticularis var. impressa Thomas W. Nelson; Jane P. Nelson 1987-6-11 8598 Humboldt North Coast Ranges. Box Spring at Box Camp. Along trail to North Trinity Mountain. 1524 Comment
  CAS-BOT-BC28502  Carex lenticularis var. limnophila Joseph Prince Tracy 1923-6-17 6275 Humboldt Big Lagoon 6 Comment
  UC249762  Carex leptalea Joseph P. Tracy 1924-7-13 6722 Humboldt Big Lagoon Northern Coast Region 6 Comment
  CAS-BOT-BC31467  Carex leptopoda LeRoy Abrams 1922-6-25 8254 Humboldt In spruce forest N of Mad River near Arcata. Comment
  UCR246355  Carex mendocinensis Peter F. Zika 2011-7-3 25496 Humboldt Outer North Coast Ranges (NCoRo), Titlow Hill Road, 3.7 road miles SE of Route 299 at Berry Summit, 1 air km SSW of Horse Mountain 1310 Comment
  CAS-BOT-BC32130  Carex multicaulis Joseph Prince Tracy 1933-7-11 12662 Humboldt Horse Mountain. 1432 Comment
  HSC71111  Carex multicaulis M. A. Baker 1980-5-23 1387 Humboldt Near Buck Mtn. 343 Comment
  UC562669  Carex multicostata Joseph P. Tracy 1927-7-4 8233 Humboldt Iaqua North Coast Ranges 609 Comment
  HSC43480  Carex multicostata Thomas W. Nelson, Jane P. Nelson 1977-9-3 3729 Humboldt Growing along creek drainage N end of pond above Alder Springs 1524 Comment
  HSC45432  Carex multicostata Thomas W. Nelson, Jane P. Nelson 1978-7-2 4393 Humboldt SE of E peak of the Mount Lassic group 1616 Comment
  CAS-BOT-BC119542  Carex nudata Doris K. Kildale 1929-5-26 9134 Humboldt Klamath River st Orleans. 152 Comment
  HSC48135  Carex nudata D. H. Norris 1971-7-17 19598 Humboldt Along Redwood House Rd., 4 mi. W of intersection with Kneeland-Bridgeville Rd. Comment
  HSC104459  Carex obnupta Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-27 28 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  SD51256  Carex obnupta Darley F. Howe 1961-8-1 3107 Humboldt Under Picea; 3 miles north of Arcata. Comment
  SEINET7569467 Image available Carex obnupta David Castaner 1984-5-28 8064 Humboldt Patrick State Park, Redwood Forest area. Comment
  UC1026440  Carex obnupta Frank W. Peirson 1941-7-28 13108 Humboldt Patrick Pt. State Park Comment
  HSC48138  Carex ovalis D. H. Norris 1971-7-17 19601 Humboldt Along Redwood House Rd., about 3 mi. W of intersection with Kneeland-Bridgeville Rd. Comment
  CAS-BOT-BC119245  Carex pachystachya Joseph Prince Tracy 1939-7-9 16340 Humboldt Snow Camp 1402 Comment
  POM247171  Carex pachystachya Joseph P. Tracy 1935-6-8 13936 Humboldt Eureka. 0 Comment
  SEINET7570348 Image available Carex pachystachya Ray Tallent 1987-8-11 896 Humboldt Six Rivers National Forest, roadside S of Horse Mtn. 1390 Comment
  HSC98951  Carex pachystachya Cara Witte 2008-7-11 878 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  UC1115801  Carex pachystachya Joseph P. Tracy 1939-7-9 16325 Humboldt Lake Prairie Bald Mountain 1066 Comment
  HSC76847  Carex praticola L. P. Janeway 1982-6-20 15 Humboldt Near road underdrain, 30 m N on FS Rd. 6N36 from Titlow Hill Rd. 1384 Comment
  CAS-BOT-BC118824  Carex preslii Joseph Prince Tracy 1938-6-9 15878 Humboldt Dobbyn Creek 152 Comment
  HSC103625  Carex rossii Thomas W. Nelson, Jane Nelson 1987-6-11 8536 Humboldt Along Forest Service Rd. 13N01, 18 mi. from junction with State Route 96. 1067 Comment
  JEPS25972  Carex subbracteata Joseph P. Tracy 1935-5-25 13885 Humboldt Dobbyn Creek 152 Comment
  UC562655  Carex subbracteata Joseph P. Tracy 1935-5-24 13811 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC1152076  Carex subbracteata Joseph P. Tracy 1950-6-25 18892 Humboldt Burr Valley, NW slope of Buck Mountain 1066 Comment
  JEPS79864  Carex subfusca Joseph P. Tracy 1935-6-23 13984 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  CAS-BOT-BC115575  Carex tumulicola Joseph Prince Tracy 1939-4-29 16254 Humboldt Orleans. 121 Comment
  UC249757  Carex tumulicola Joseph P. Tracy 1923-5-13 6205 Humboldt near Bridgeville; Northern Coast Ranges 213 Comment
  CAS-BOT-BC115537  Carex unilateralis Joseph Prince Tracy 1927-7-17 8276 Humboldt Three Cabins; grassy slopes on lower western foothills of Chaparral Mountain. 457 Comment
  CHSC90278  Carex utriculata Thomas W. Nelson; Jane P. Nelson 1987-6-11 8607 Humboldt North Coast Ranges. Box Spring at Box Camp. Along trail to North Trinity Mountain. 1524 Comment
  HSC103141  Carex utriculata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1067 Humboldt Patterson Meadows 1555 Comment
  UC1103614  Carex vesicaria Joseph P. Tracy Jul 16 1930-Jul 19 1930 8988 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC249131  Castilleja affinis Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's [Patricks] Point State Park Comment
  UC1196741  Castilleja affinis subsp. affinis Joseph P. Tracy 1942-7-1 17366 Humboldt opposite Buck Mountain (Dinsmore's, along Van Duzen River); Van Duzen River 762 Comment
  HSC20521  Castilleja affinis subsp. litoralis D. E. Anderson 1962-7-10 2244 Humboldt Luffenholtz Beach, about 2 mi. S of Trinidad along old Hwy. 101 Comment
  JEPS93140  Castilleja affinis subsp. litoralis M. Wetherwax 1992-5-20 2435 Humboldt n side Wedding Rock (Patrick's Point State Park); Patrick's Point State Park 30 Comment
  HSC104042  Castilleja ambigua subsp. humboldtiensis C. Reynolds 2015-4-28 40 Humboldt Near creekside on Arcata Marsh, south of Interpretive Center 5 Comment
  JEPS76823  Castilleja ambigua subsp. humboldtiensis L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1978-5-27 4804 Humboldt about 1.2 mi n Eureka bridge (Samoa peninsula); Samoa peninsula Comment
  RSA18017  Castilleja ambigua subsp. humboldtiensis Carl B. Wolf 1927-8-22 776 Humboldt Big Lagoon. Comment
  HSC76226  Castilleja applegatei Overton, Butler 1979-7-24 9742 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC45086  Castilleja attenuata R. Sutherland 1978-5-19 3 .19578 Humboldt Mckee Flat 296 Comment
  JEPS108698  Castilleja exserta C. Sander 2005-8-16 CA 330 81 Humboldt Manila Dunes 3 Comment
  UCD122407  Castilleja exserta C. Sander 2005-8-16 CA 330 -81 Humboldt Ecoregion 14. Manila Dunes ACEC. 3 Comment
  UCD122467  Castilleja exserta subsp. latifolia Linda M. Barker 1976-6-1 1545 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  JEPS76825  Castilleja exserta subsp. latifolia L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1978-5-27 4805 Humboldt beach at Manila Manila; Samoa Peninsula, beach at Manila Comment
  HSC56208  Castilleja miniata G. L. Clifton, Griswold 1979-8-2 12210 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  CAS-BOT-BC244883  Castilleja miniata Thomas W. Nelson; Jane P. Nelson 1979-7-11 5032 Humboldt Along trail from Grogan's Hole to North Trinity Mountain from Grogan's Hole to summit Comment
  HSC99043  Castilleja pruinosa Cara Witte 2008-6-4 678 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1307 Comment
  JEPS35816  Castilleja wightii Rimo Bacigalupi, and L. R. Heckard 1964-7-27 8962 Humboldt .12 mi e and above Shelter Cove (in shaded bend of road) Comment
  HSC44432  Ceanothus arcuatus Brad Klipfel 1975-5-24 634 Humboldt Horse Mtn. Comment
  CAS-BOT-BC126841  Ceanothus cuneatus Thomas Nelson 1977-6-15 3453 Humboldt unspecified 1371 Comment
  UCR32075  Ceanothus cuneatus David J. Keil 1983-7-2 17328 Humboldt Horse Mountain Summit SW of Willow Creek 1509 Comment
  UC176125  Ceanothus cuneatus var. cuneatus Joseph P. Tracy 1913-6-17 4173 Humboldt near summit of Buck Mt. North Coast Ranges 1676 Comment
  JEPS42320  Ceanothus foliosus W. L. Jepson 1902-8-10 2171 Humboldt Comptche to Low Gap 762 Comment
  CAS-BOT-BC49656  Ceanothus foliosus var. foliosus Carl B. Wolf 1941-7-29 11093 Humboldt Along the Redwood Highway, 7/10 mi. no. of Jnct. with State Highway #1 from Ft. Bragg. 60 Comment
  CAS-BOT-BC50052  Ceanothus incanus H. E. McMinn 1922-8-3 382 Humboldt South Fork Eel River Comment
  UCD112167  Ceanothus incanus B. L. Kay 1955-4-10 s.n. Humboldt Wagner Ranch, 5 miles southwest of Garberville. Comment
  HSC18292  Ceanothus integerrimus Francis Winter 1960-5-7 Humboldt 1.0 mi. E of Hoopa along Hoopa-Willow Creek Hwy. 152 Comment
  UC1198004  Ceanothus integerrimus Joseph P. Tracy 1921-6-19 5839 Humboldt ridge to n Willow Creek (between Willow Creek and campbell Creek, near Langdon's Gopher Camp.); Brannon Mountain, Northern Coast Ranges 762 Comment
  SBBG116557  Ceanothus oliganthus var. sorediatus D. H. Wilken 2003-7-22 16174 Humboldt near Windy Nip Gap, Mattole Rd, 1.5 km SW of Cathy's Pk 670 Comment
  UC1039820  Ceanothus oliganthus var. sorediatus J. I. Mallory 1956-4-26 125 Humboldt Long Ridge Quad. 28-A-3 (Humboldt base and Mer.) 762 Comment
  HSC18308  Ceanothus parryi P. J. Zinke 161 Humboldt Divide between Mill Creek and S Fork of Eel River, 2 mi S of Myer's Flat 305 Comment
  OBI10389  Ceanothus parryi Carl B. Wolf 1941-7-27 11086 Humboldt N Coast Ranges, 5.8 mi W Maple Crk on rd to Freshwater 610 Comment
  UC249584  Ceanothus parryi Joseph P. Tracy 1921-6-12 5823 Humboldt Butler Valley Road near Kneelans Prairie 457 Comment
  CAS-BOT-BC53063  Ceanothus pumilus Clarence R. Quick 1959-7-24 59 -34 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  HSC98122  Ceanothus pumilus Cara Witte 2007-5-24 118 Humboldt Horse Mountain Botanical Area. Along 6N36. Approximately .6 miles southeast from Radio Towers. 1476 Comment
  HSC18335  Ceanothus thyrsiflorus W. K. Parks Jun 1932 1357 Humboldt Trinidad Comment
  HSC59634  Ceanothus thyrsiflorus J. P. Smith 1973-5-26 6867 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC60290  Ceanothus thyrsiflorus Phyllis Krieg 1979-4-21 Humboldt Near Clam Beach Lagoon Trail, E of Hwy. 101 0 Comment
  RSA18143  Ceanothus thyrsiflorus Carl B. Wolf 1927-8-22 806 Humboldt 1 mile south of Orick. Comment
  UCD170772  Ceanothus thyrsiflorus Gordon Leppig 1998-5-11 756 Humboldt Rt. #101 mile marker 97.71. 30 Comment
  CAS-BOT-BC52863  Ceanothus velutinus Volney Rattan 1878-1-1 s.n. Humboldt unspecified Comment
  CAS-BOT-BC52865  Ceanothus velutinus S. K. Harris 1942-6-12 1257 Humboldt Fickle Hill Road, 5 miles north and 2 miles east of Boynton Prairie 630 Comment
  HSC98200  Ceanothus velutinus D. E. Anderson 1965-5-1 3591 Humboldt 6.3 mi N of Hoopa along Hwy. 96 Comment
  CDA7305  Centaurea nigra E. C. Whitney 1968-9-6 Humboldt Holmes Flat. Rutledge property. 0 Comment
  UC1199119  Centaurea solstitialis Joseph P. Tracy 1931-10-18 9735 Humboldt 2 to 5 mi e of South Fork (Camp Grant, along Eel River); Eel River 45 Comment
  UC673086  Centaurea solstitialis Joseph P. Tracy 1940-10-17 16759 Humboldt near Dyerville (South Fork Station) 45 Comment
  JEPS46936  Centaurium muehlenbergii W. L. Jepson 1927-7-3 12361 Humboldt Meyers road sta South Fork Eel River Comment
  POM318967  Centaurium muehlenbergii Patricia Wilder 1968-8-22 4430 Humboldt Bull Creek Flat, Humboldt Redwoods State Park, north of Weott and west of U. S. 101; Coast Ranges, South Fork of Eel River drainage area. 61 Comment
  UC1198613  Centunculus minimus J. P. Tracy 1905-5-21 2182 Humboldt immediate vicinity of Eureka 0 Comment
  UC1198615  Centunculus minimus Joseph P. Tracy 1942-6-15 17119 Humboldt Englewood Prairie 91 Comment
  RSA46684  Cephalanthera austiniae Doris K. Kildale 1937-7-18 15139 Humboldt Horse Mt. Comment
  HSC99675  Cephalanthus occidentalis J. Wendell Howe 1934-7-9 1293 Humboldt Near Weaverville Comment
  HSC97628  Chaenactis douglasii var. douglasii Cara Witte 2007-6-12 241 Humboldt Horse Mountain Botanical Area. Near mine area. Forest Service Road 6N38. 1311 Comment
  SBBG56423  Chamaecyparis lawsoniana M. Van Rensselaer 1938-3-31 Humboldt Humboldt County [no specific locality] Comment
  HSC1196  Chamaecyparis lawsoniana Curt M. Johnson 1966-3-11 115 Humboldt Flood plain of Bull Creek at Bull Creek 152 Comment
  SEINET11739818  Chamaecyparis lawsoniana F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -302 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  HSC98979  Cheilanthes gracillima Cara Witte 2008-5-26 656 Humboldt 3/4 mile south of Titlow Hill. 1422 Comment
  UC582918  Chenopodium botrys P. A. Munz 1936-8-9 14334 Humboldt Williams Redwood Grove South Fork of Eel River Comment
  RSA44503  Chenopodium pumilio H. M. Pollard 1947-8-31 s.n. Humboldt Orleans Hotel grounds, Orleans. Comment
  HSC61129  Chimaphila menziesii Jimerson, J. Pageau 1979-6-13 555 Humboldt Near Slate Creek Butte, close to the town of Orleans 549 Comment
  CAS-BOT-BC451500  Chimaphila umbellata Doris K. Kildale 1928-4-29 5962 Humboldt Bald Mountain Comment
  UC1197594  Chimaphila umbellata Joseph P. Tracy 1911-7-7 3421 Humboldt ridge n. of Willow Creek (between Willow & Campbell Creeks, Brannan Mt, near summit); Northern Coast Ranges, Brannan Mt. 1219 Comment
  CAS-BOT-BC452226  Chimaphila umbellata Doris K. Kildale 1925-8-16 1163 Humboldt Trinity Summit Trail between forks of Tish-tang-i-tank Creek & Elk Horn Prairie 1524 Comment
  JEPS66585  Chimaphila umbellata Lincoln Constance 1934-6-14 873 Humboldt 2 mi. from mouth of Squaw Creek (on rd. to Grasshopper Peak); Bull Creek Region, S. Fork Eel R. 304 Comment
  RSA249505  Chimaphila umbellata subsp. occidentalis R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-5 35145 Humboldt King Mountain 1220 Comment
  UCD138429  Chlorogalum pomeridianum Joseph P. Tracy 1946-7-7 17611 Humboldt Trinity River Valley at Willow Creek. 152 Comment
  UC1197669  Chlorogalum pomeridianum var. pomeridianum Joseph P. Tracy 1912-7-4 3726 Humboldt hillside near mouth of Yager Creek (near Hydesville); Northern Coast Region 60 Comment
  RSA178559  Chrysolepis chrysophylla Joseph P. Tracy 1950-7-31 19239 Humboldt Grouse Mountain, top of mountain. 1524 Comment
  UC1198647  Cicendia quadrangularis Joseph P. Tracy 1930-5-18 8696 Humboldt Rohnerville Golf Course 152 Comment
  HSC5369  Cichorium intybus H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  SD58270  Cicuta douglasii W. L. Jepson 1936-8-17 17930 Humboldt Marsh south of Salmon Creek Comment
  UC1197339  Cicuta douglasii Joseph P. Tracy 1926-10-24 7822 Humboldt near High Prairie (Northern Coast Ranges, Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  UCD59786  Cinna latifolia Joseph P. Tracy 1936-8-7 15087 Humboldt Trinity Summit, in fir woods, head of Little Hors-Linto Creek. 1371 Comment
  HSC56162  Circaea alpina subsp. pacifica G. L. Clifton, Terry Griswold 1979-8-1 12038 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  RSA20788  Circaea alpina subsp. pacifica Carl B. Wolf 1937-8-13 9253 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 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
  RSA439196  Cirsium arvense M. B. Dunkle 1936-8-22 4859 Humboldt Williams Grove, Eel River 213 Comment
  SEINET9341561  Cirsium brevifolium Unknown 1948-9-3 1850 Humboldt Humboldt Comment
  CAS-BOT-BC284437  Cirsium brevistylum Henry M. Pollard 1948-8-9 s.n. Humboldt Camp Creek near Orleans Comment
  CAS-BOT-BC285529  Cirsium occidentale var. candidissimum L. B. Kildale 1930-7-7 10261 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  CHSC36389  Cirsium occidentale var. candidissimum Donald M. Burke 1981-8-1 67 Humboldt Along Friday Ridge Rd. 560 Comment
  CAS-BOT-BC285528  Cirsium occidentale var. candidissimum John Thomas Howell 1937-7-31 13713 Humboldt Trinity River Canyon 2 miles west of Trinity Co. line Comment
  JEPS59230  Cirsium occidentale var. candidissimum W. L. Jepson 1902-6-20 1893 Humboldt Ft. Seward Ranch ridge 1219 Comment
  UC1223058  Cirsium occidentale var. candidissimum Joseph P. Tracy 1950-6-15 18779 Humboldt 5 mi n of Harris (on old Overland Road); Mail Ridge Comment
  CAS-BOT-BC285580  Cirsium occidentale var. occidentale L. R. Abrams 1916-7-18 6142 Humboldt At Trinidad Comment
  UC1223041  Cirsium remotifolium var. odontolepis Joseph P. Tracy 1949-8-11 18472 Humboldt 2 to 6 mi s from Grouse Mt. (e of headwaters of Redwood Creek, beginning where the electric power line crosses, and working south); Kinsey Ridge 1280 Comment
  CDA1548  Cirsium remotifolium var. rivulare E. C. Whitney 1968-7-25 s.n. Humboldt Larabee Valley State Hwy 36, 0.5 mi. E of bridge over the South Fork of the Van Duzen River. 0 Comment
  HSC74679  Cirsium vulgare Gail Newton 1981-8-6 2397 Humboldt Near Humbug Creek 1256 Comment
  HSC89489  Cirsium vulgare P. A. Daly 1986-2-28 65 Humboldt Trinidad Head, along trail 61 Comment
  RSA297180  Cirsium vulgare Lincoln Constance 1934-6-11 853 Humboldt South Fork Eel River; Lower Look Prairie and Bull Creek Road to Dyerville Comment
  HSC64527  Clarkia amoena J. P. Smith 1973-5-26 6827 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  CAS-BOT-BC160951  Clarkia amoena subsp. amoena Doris K. Kildale 1928-6-24 5291 Humboldt Horse Mountain cut-off, near junction of Willow Creek road 853 Comment
  POM271818  Clarkia amoena subsp. huntiana Lyman Benson 1929-7-19 1865 Humboldt Dyerville to Matole River. Comment
  LA206350  Clarkia gracilis subsp. gracilis H. Lewis; M. Lewis 1947-6-13 420 Humboldt highway 36, 2.3 mi. E of S Fork of Van Duzen River (Bridge 4-119) Comment
  UC183694  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1913-6-23 4284 Humboldt ridge between Van Duzen River and Mad River (near summit, on Dinsmore's Ranch); Northern Coast Ranges 1066 Comment
  HSC32089  Clarkia purpurea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5701 Humboldt McKeown Ranch, N of Dinsmore Comment
  POM214926  Clarkia purpurea subsp. purpurea Joseph P. Tracy 1932-6-26 10264 Humboldt North Coast Ranges: Valley of South Yager Creek 762 Comment
  JEPS43687  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1932-6-26 10264 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC1196984  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1898-7-13 256 Humboldt near Hydesville; Northern Coast Ranges, Yager Creek Bar 60 Comment
  UC1281766  Clarkia purpurea subsp. quadrivulnera Richard Spellenberg 1965-6-13 1109 Humboldt about 3/4 mi s Highway through Hoopa Indian Reservation (along road on e side of river); Trinity River Comment
  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
  HSC55143  Claytonia cordifolia G. L. Clifton, Terry Griswold 1979-8-1 12036 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  BLMAR461  Claytonia exigua Jennifer Anthony-Wheeler 2008-3-7 461 Humboldt Samoa dunes, growing in Samoa #3 Endangered Plant Protection Area 12 Comment
  HSC100605  Claytonia perfoliata Carl C. Marshall Apr 1886 105 Humboldt Damp places. Comment
  SEINET200312  Claytonia rubra subsp. rubra J. P. Tracy 1913-6-16 4141 Humboldt Dinsmore's Ranch in valley of Van Duzen River opposite Buck Mt. 762 Comment
  HSC71826  Claytonia saxosa Thomas W. Nelson, Jane P. Nelson 1980-6-27 5957 Humboldt Saddle between Mt. Lassic and peak to E 1677 Comment
  HSC101994  Claytonia sibirica M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 893 Humboldt Patterson Meadows 1566 Comment
  HSC53824  Claytonia sibirica Griswold, Butler 1979-7-10 6270 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  SD88533  Claytonia sibirica Darley F. Howe 1972-5-7 Humboldt Trinidad Comment
  RSA554591  Claytonia sibirica Walter Wisura 1993-5-9 4909 Humboldt Northwest: Hwy 299, 5.7 mi. W of Willow Creek at E-fork camp ground. Comment
  SEINET215096  Claytonia sibirica C. Wray 1964-3-27 12 Humboldt On William Hunsaker property Monument Rd ca 2 mi SW of Rio Dell Comment
  UC672991  Claytonia sibirica Joseph P. Tracy 1933-5-20 12273 Humboldt near Cape Mendocino (Cape Ridge); Cape Ridge 304 Comment
  HSC99241  Claytonia washingtoniana C. E. Fellows 1971-6-7 452 Humboldt Clam Beach Bluffs, 9/10 mi. N of jct. of Little River Rd. and Central Ave., E side of Little River Rd. Comment
  CHSC3493  Clintonia andrewsiana Roger Jaegel 1966-5-8 151 Humboldt Located twenty-five miles southeast of Eureka, in Richardson's Grove Redwood Park. Comment
  HSC83460  Clintonia andrewsiana R. N. Raynor 1935-5-22 Humboldt Ft. Seward Comment
  HSC15450  Clintonia andrewsiana Francis Winter 1960-4-23 Humboldt 1.0 mi W of Angel Ranch on Korbel-Maple Creek Rd. 244 Comment
  JEPS55586  Clintonia andrewsiana W. Roderick and H. M. Beard 1960-5-29 Humboldt 7 road mi se of Carlotta Comment
  UC14994  Clintonia andrewsiana Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5496 Humboldt between Camp Grant and Pepperwood; North Coast Ranges Comment
  UC1541328  Clintonia andrewsiana W. K. Parks 1932-8-24 1135 Humboldt 1 mi e of Grizzly Creek (Van Duzen River); Van Duzen River 152 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
  UC727681  Collinsia linearis Milo S. Baker 1946-6-15 11486 Humboldt near Head of Willow Creek Canyon (Trinity Highway); Trinity Highway Comment
  UC169873  Collinsia parviflora V. Rattan Humboldt Hoopa valley Comment
  HSC70957  Collinsia parviflora Thomas W. Nelson 1977-6-15 3432 Humboldt Along FS Rd. 6N01 about 1 mi. S of junction with FS Rd. 5N10 1372 Comment
  JEPS6171  Collinsia rattanii Joseph P. Tracy 1925-5-30 7032 1/2 Humboldt Laribee Valley; North Coast Ranges 701 Comment
  RSA0117231  Collinsia rattanii Volney Rattan 1903-1 1878 Humboldt Humboldt. Comment
  UC1196851  Collinsia sparsiflora var. collina Joseph P. Tracy 1913-6-20 4242 Humboldt Grassy slopes on lower foothills of Buck Mountain. 762 Comment
  JEPS26356  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1916-5-2 4685 Humboldt garden Eureka; North Coast Ranges 762 Comment
  HSC100663  Collinsia tenella Carl C. Marshall Apr 1887 369 Humboldt Hoopa Valley. Comment
  UC582447  Collinsia torreyi var. wrightii Joseph P. Tracy 1935-7-28 14314 Humboldt Trinity Summit, Head of Devils Hole Head of Devils Hole; Trinity Summit, Head of Devils Hole 1828 Comment
  JEPS13366  Collinsia torreyi var. wrightii W. K. Parks Jul 1933 1365 Humboldt South Fork Mt Comment
  HSC76564  Collomia grandiflora Denis Kearns 1981-7-22 311 Humboldt Near Whiteys Peak 1487 Comment
  UC52837  Collomia grandiflora Joseph Burtt Davy and Walter C. Blasdale 1899-5 5770 Humboldt hills around Hoopa Valley 304 Comment
  UC1197862  Collomia tinctoria Joseph P. Tracy Jul 16 1930-Jul 19 1930 8965 Humboldt openings in fir forest near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC102537  Collomia tracyi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1523 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC36634  Collomia tracyi Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1907 Humboldt N side of Pine Mtn. Comment
  HSC74377  Collomia tracyi M. A. Baker 1980-6-28 2492 Humboldt Near Mad River Buttes 1445 Comment
  CAS-BOT-BC133716  Corallorhiza Doris K. Kildale 1928-3-29 4367 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  HSC99806  Corallorhiza maculata T. Jimerson, J. Pageau 1979-6-13 546 Humboldt Near Onion Lake, close to the town of Orleans. 549 Comment
  UC1225828  Corallorhiza maculata Joseph P. Tracy 1948-8-15 18150 Humboldt on ridge 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  HSC16580  Corallorhiza maculata D. E. Anderson 1965-6-1 3780 Humboldt Near Brush Mtn. lookout 1189 Comment
  HSC16586  Corallorhiza maculata Doris K. Kildale 1926-5-2 1845 Humboldt Bald Mtn. road, between Bald Mtn. House and junction of Redwood Creek Road. Comment
  HSC45234  Corallorhiza maculata Thomas W. Nelson, Jane P. Nelson 1977-7-1 3569 Humboldt N side of ridge between Bear Creek & Blanket Creek 1524 Comment
  HSC35454  Cordylanthus maritimus subsp. palustris J. D. Ackerman 1975-8-2 615 Humboldt Humboldt Bay: across from Murray Field (Eureka airport), near railroad tracks and Hwy 101. Comment
  POM21204  Cordylanthus pilosus subsp. pilosus L. R. Abrams 1916-7-10 5964 Humboldt Between Harris and Alder Pt. Comment
  UC725642  Corethrogyne filaginifolia A. A. Heller 1924-7-23 13874 Humboldt Little River Comment
Read comments
Sep 29 2006
  CAS-BOT-BC212013  Cornus nuttallii Doris K. Kildale 1927-5-1 3118 Humboldt Blocksburg Comment
  RSA1406  Cornus nuttallii E. R. Johnson 1929-08 1432 Humboldt Eel River. 91 Comment
  UC412923  Cornus nuttallii P. E. Goddard 1906-6 692 Humboldt Lasseck Peak Comment
  UC502978  Cornus nuttallii Joseph P. Tracy 1932-10-9 10869 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  HSC100454  Cornus pubescens Carl C. Marshall Jun 1886 322 Humboldt Mad River. Comment
  CAS-BOT-BC212181  Cornus sericea Joseph P. Tracy 1929-8-18 8653 Humboldt Dinsmore's Ranch on Van Duzen River opposite Buck Mountain 670 Comment
  JEPS50152  Cornus sericea subsp. sericea Lincoln Constance 1934-6-11 844 Humboldt trail along e. bank S. Fork Eel R., N. Dyerville Flat Bull Creek Region, S. Fork Eel R., N. Dyerville Flat Comment
  CAS-BOT-BC210538  Cornus sessilis Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC210539  Cornus sessilis Doris K. Kildale 1927-7-3 3631 Humboldt Willow Creek Flat 152 Comment
  HSC70401  Cornus sessilis M. A. Baker 1980-6-7 1844 Humboldt Near Ammon Creek 732 Comment
  RSA0019465  Cornus sessilis Volney Rattan 1878-1 s.n. Humboldt [No location data on label] Comment
  HSC93465  Cortaderia selloana Gordon Leppig, Kai Neander 1998-10-12 1104 Humboldt McKinleyville, empty lot on School Rd., behind Mill Creek Shopping Center 30 Comment
  UC1197933  Corylus californica Joseph P. Tracy Jul 16-19 1930 9058 Humboldt South Fork Mountain, along summit near Blake lookout Northern Cosast Ranges 1706 Comment
  CAS-BOT-BC180306  Corylus cornuta subsp. californica H. E. McMinn 1922-8-4 332 Humboldt Along Van Duzen River Comment
  HSC41356  Corylus cornuta subsp. californica Brad Klipfel 1974-8-2 505 Humboldt Horse Mtn. Comment
  RSA46830  Corylus cornuta var. californica Doris K. Kildale 1926-8-31 2602 Humboldt Mattole Valley, at Geo. H. Mineis. Comment
Read comments
Jan 24 2013
  RSA46863  Corylus cornuta var. californica Doris K. Kildale 1927-7-10 3734 Humboldt Gans Prairie, Bald Hills. Comment
  SEINET12031408  Corylus cornuta var. californica F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -282 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  CAS-BOT-BC291344  Cotula coronopifolia Doris K. Kildale 1925-9-26 1366 Humboldt Mouth of Mad River Comment
  CAS-BOT-BC290340  Crepis acuminata Joseph P. Tracy 1935-7-30 14382 Humboldt Salmon Summit 2103 Comment
  JEPS37501  Crepis acuminata Joseph P. Tracy 1935-7-30 14382 Humboldt Salmon Summit 2103 Comment
  UC1051583  Crepis capillaris Joseph P. Tracy 1949-9-26 18229 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  HSC74758  Crepis occidentalis subsp. occidentalis Gail Newton 1981-7-23 2274 Humboldt Near Bug Creek Butte 1494 Comment
  HSC39392  Crepis pleurocarpa D. E. Anderson, J. P. Smith 1971-7-6 1278 Humboldt Horse Mtn. Comment
  HSC42455  Crepis pleurocarpa Barbara Kelly 1977-7-16 540 Humboldt On Horse Mtn. Rd., 1/2 mi. below where it forks; 1.5 mi. below summit 1402 Comment
  RSA167386  Crepis pleurocarpa Joseph P. Tracy 1947-7-9 17846 Humboldt Top of Horse Mt Comment
  CAS-BOT-BC299701  Crocidium Doris K. Kildale 1929-4-28 7468 Humboldt Between Little Van Duzen River and Dinsmores on Bridgeville - Red Bluff Road Comment
  UC31346  Crocidium multicaule C. C. Marshall 1888-1 Humboldt Comment
  BLMAR759  Cryptantha Jennifer Wheeler 2015-5-12 759 Humboldt King range, Along Telegraph Ridge btwn Oat and Spanish 670 Comment
  SEINET12280692  Cryptantha affinis J. P. Tracy 1950-1 18956 Humboldt Friday Ridge 1219 Comment
  UC1134204  Cupressus lawsoniana C. R. Clar 1930-7-14 98 Humboldt Supply Creek Hoopa Quad., Hoopa Indian Reservation, Supply Creek 609 Comment
  HSC6387  Cuscuta arvensis J. P. Tracy 1933-8-25 12996 Humboldt Centerville Beach, near mouth of Eel R. 6 Comment
  UC153987  Cuscuta salina var. major Joseph P. Tracy 1901-8-7 1256 Humboldt Humboldt Bay Region Northern Coast Region 0 Comment
  UCD60113  Cynodon dactylon Joseph P. Tracy 1939-8-18 16427 Humboldt Eureka. 15 Comment
  HSC74112  Cynoglossum grande R. York 1980-5-23 634 Humboldt Near Buck Mtn. 1524 Comment
  UC1222257  Cynoglossum occidentale Joseph P. Tracy 1948-8-15 18121 Humboldt on Ridge 2 mi. e. Grove's Prairie (Trinity Summit Rd. high point); Trinity Summit 1524 Comment
  BLMAR144  Cynosurus echinatus Donald Hazlett 1994-6-7 144 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC35349  Cynosurus echinatus J. D. Ackerman, A. M. Montalvo 1975-6-22 482 Humboldt 6.4 mi. W of Dinsmore, Hwy. 36 Comment
  UC196569  Cyperus squarrosus Joseph P. Tracy 1916-9-5 4773 Humboldt 4 mi. above mouth S. Fork Eel R.; Northern Coast Ranges, S. Fork Eel R. 60 Comment
  SEINET200683  Cypripedium montanum Joseph P. Tracy 1918-5-26 4937 Humboldt Redwood Creek at foot of Grouse Mt. 610 Comment
  UC14956  Cypripedium montanum Mrs. M. H. Manning may, 1901 16 Humboldt near Hupa Comment
  HSC1045  Cystopteris fragilis D. E. Anderson 1965-5-15 3713 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC97625  Cystopteris fragilis Cara Witte 2007-5-31 161 Humboldt Buck Flat. Intersection of National Forest 1 and 5N01. 1547 Comment
  HSC98728  Cystopteris fragilis Cara Witte 2007-7-20 563 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1460 Comment
  HSC14664  Cytisus scoparius var. andreanus W. F. Nickel 1965-5-17 Humboldt 1/4 mi. E of Arcata on road to Arcata Reservoir, near Jolly Giant Parking Lot. Comment
  HSC22835  Dactylis glomerata B. D. Rogers 1964-4-28 28464 Humboldt Humboldt State campus near Redwood Hall parking lot Comment
  RSA728072  Dactylis glomerata Gary D. Wallace 1979-7-24 1864 Humboldt Brush Mountain Lookout, SW of the town of Willow Creek. 1216 Comment
  CAS-BOT-BC189736  Danthonia californica Joseph P. Tracy 1930-6-21 8772 Humboldt Northern Coast Ranges. Larrabee Valley. 701 Comment
  HSC39235  Danthonia californica D. E. Anderson, J. P. Smith 1971-7-28 - 1270 Humboldt 2.5 mi. S of Blue Lake along the Mad River. Comment
  UC552734  Danthonia californica Joseph P. Tracy 1935-7-23 14137 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UCD60465  Danthonia californica Mrs. Ida E. Varley 1915-7-27 s.n. Humboldt Ferndale. Comment
  SEINET6847453  Danthonia californica Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. 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-BC420359  Darmera peltata Carl D. Duncan 1920-9-22 s.n. Humboldt Trinity River, Hoopa Valley Comment
  HSC20251  Darmera peltata C. F. Hudson 1964-5-7 6436 Humboldt 2 mi. up river from the mouth of Mad River, S bank 1 Comment
  JEPS45729  Datisca glomerata Lincoln Constance 1934-6-11 857 Humboldt along South Fork Eel River, N. Dyerville Flat South Fork Eel River; Bull Creek Region, South Fork Eel River Comment
  SDSU2270  Daucus carota D. F. Howe 1959-8-4 2805 Humboldt Roadside 9 miles east of Arcata on #299. Comment
  HSC102608  Delphinium decorum subsp. tracyi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1595 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC48788  Delphinium decorum subsp. tracyi Brad Klipfel 1975-6-17 316 Humboldt Along Titlow Hill Rd. Comment
  HSC37654  Delphinium decorum subsp. tracyi Robert M. Specht, John Rehling 1976-4-25 395 Humboldt 12 mi. E of Bridgeville on Hwy. 36, at SE end of Larabee Valley Comment
  RSA79370  Delphinium decorum subsp. tracyi E. K. Balls, Lee W. Lenz 1952-5-12 17196 Humboldt 11.2 miles E along Hwy 36 from Bridgeville to Cobbs Comment
  UC1005604  Delphinium decorum subsp. tracyi Frank W. Gould 1939-5-29 837 Humboldt in wet meadow near ski hut; Horse Mountain 1005 Comment
  HSC56235  Delphinium glaucum Walter Overton 1979-8-1 12316 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  CAS-BOT-BC10317  Delphinium hesperium Doris K. Kildale 1926-5-31 2079 Humboldt Cold Brook Camp between Kilipeville & lower Lake Comment
  POM149763  Delphinium hesperium L. R. Abrams 1916-7-11 600 Humboldt Between Blocksberg and Bridgeville Comment
  UC160927  Delphinium hesperium subsp. hesperium Harley P. Chandler May 1901 1252 Humboldt Redwood Belt North Coast Ranges 152 Comment
  HSC56090  Delphinium menziesii G. L. Clifton, Griswold 1979-7-31 11783 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  UC184715  Delphinium nudicaule Joseph P. Tracy 1913-6-14 4128 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  UCD95890  Delphinium nudicaule P. B. Kennedy 1926-3-17 s.n. Humboldt Between Yager and Bridgeville. Side of road. Comment
  HSC32304  Delphinium nuttallianum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5650 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC74074  Delphinium trolliifolium Joyce Walker 1980-5-7 Humboldt Four Mile Creek Comment
  UC1075803  Delphinium trolliifolium E. K. Balls and L. W. Lenz 1955-5-15 20736 Humboldt hills 9.9 mi sw Fernbridge (along Old Coast rd to Capetown) 502 Comment
  UC160931  Delphinium trolliifolium Joseph P. Tracy 1908-6 2713 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  CAS-BOT-BC121963  Delphinium trolliifolium Mrs. H. C. Cantelow 1941-4-19 s.n. Humboldt 8.4 miles SW of Ferndale on road to Cape Mendocino. Comment
  HSC37428  Delphinium trolliifolium D. W. Snell 1964-4-18 49 Humboldt Mad River bottom, 3 mi. N of Blue Lake Comment
  JEPS102996  Delphinium trolliifolium R. Raiche, K. Zadnik, and H. Forbes 1991-6-13 136 Humboldt 39 mi E of Rio Dell (on Hwy 36) 896 Comment
  JEPS23302  Delphinium trolliifolium W. L. Jepson 1934-5-6 16681 Humboldt Little Larrabee Creek Comment
  SD58244  Delphinium trolliifolium W. L. Jepson 1934-5-6 16681 Humboldt Little Larrabee Creek Comment
  SEINET12099650  Delphinium trolliifolium J. P. Tracy 1951-1 19559 Humboldt halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road) Comment
  UC984819  Delphinium trolliifolium A. M. Vollmer and L. Beane 1951-6-6 106 Humboldt on road between Orick and Weitchpec Comment
  UCD61383  Deschampsia cespitosa Peter Haggard 1996-7-8 Humboldt North Coast Railroad right-of-way, Eureka. Comment
  SEINET10515720  Deschampsia cespitosa Mark Stopher 1980-6-4 Stopher 95 Humboldt Very common along Elk River near Hwy 101 bridge. T4N R1W sw 1/4 sec 4, Eureka quadrangle. Elevation 1 mi. 1 Comment
  CAS-BOT-BC194290  Deschampsia cespitosa subsp. cespitosa Doris Kildale 1931-5-10 10679 Humboldt Snow Camp Comment
  BLMAR534  Deschampsia danthonioides Jennifer Wheeler 2009-6-23 534 Humboldt King range, On King Peak road Comment
  CAS-BOT-BC201772  Deschampsia elongata W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek & Eel River Comment
  UCD63575  Deschampsia elongata Harley P. Chandler 1901-6-1 1331 Humboldt Hupa Indian Reservation. 304 Comment
  HSC56461  Dianthus armeria Griswold, Butler 1979-7-12 7249 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  RSA0056407  Dicentra formosa James R. Shevock 1971-5-29 1139 Humboldt Trinity Hwy, 229. 243 Comment
  UC1196303  Dicentra formosa Joseph P. Tracy 16208 Humboldt vicinity Carlotta 30 Comment
  CAS-BOT-BC402405  Dicentra formosa subsp. formosa Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UC35008  Dicentra uniflora W. C. Blasdale 1896-1 Humboldt Top of South Fork Mountain Comment
  SEINET3071630 Image available Dichanthelium acuminatum subsp. fasciculatum Joseph P. Tracy 1900-8-26 925 Humboldt Eureka Comment
  UC421853  Dichelostemma X venustum W. L. Pedrick Jun 1907 Humboldt Ferndale Comment
  UC1950087  Dichelostemma capitatum subsp. capitatum Barbara Ertter with Thomas J. Delendick 1987-5-16 6927 Humboldt near seepage on N side of road; S-facing slope; Vista Point just W of Berry Summit on Hwy 299, ca 15 airmiles E of Arcata Comment
  SEINET6879153  Dichelostemma congestum Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie, about 4 miles southeast of Kneeland. Comment
  CHSC2082  Dichelostemma ida-maia A. Small 1954-5-1 Humboldt Near Honey-dew Comment
  HSC38621  Dichelostemma ida-maia D. E. Anderson, J. P. Smith 1971-6-21 - 1112 Humboldt 5.2 mi. E of the bridge over Eel River at Alderpoint, near Humboldt-Trinity county line Comment
  JEPS25695  Dichelostemma ida-maia P. C. Hutchison 1961-5-22 2024 Humboldt ca 9.1 mi ne Klamath River bridge at Weitchpec (Klamath River canyon); Klamath River Canyon Comment
  CAS-BOT-BC500979  Dichelostemma multiflorum L. R. Abrams 1918-6-15 7113 Humboldt Brannan Mt near Willow Ck. 1371 Comment
  UC1198172  Dichelostemma multiflorum Joseph P. Tracy 1939-4-29 16233 Humboldt near Weitchpec (along Trinity River); Trinity River 121 Comment
  SD58400  Dichelostemma venustum Milo S. Baker 1923-7-28 138 d Humboldt Locality given as: growing within a few feet of Brodiaea Collector's #137.; not in our database at present 3/19/08; ?Baker Collector's #137 in our collection. Comment
  UC198616  Digitalis purpurea Joseph P. Tracy 1917-5-30 4790 Humboldt Dows Prairie; Northern Coast Ranges 60 Comment
  UC198610  Digitalis purpurea Joseph P. Tracy 1917-5-30 4790 Humboldt Dows Prairie Comment
  HSC26885  Digitaria sanguinalis Brad Klipfel 1973-7-24 222 Humboldt Mad River flood plain, N end of Carson RR Bridge. Comment
  RSA249498  Dipsacus fullonum R. F. Thorne, P. C. Everett 1965-8-9 35282 Humboldt 2.5 miles N of Arcata. 8 Comment
  UC535766  Disporum hookeri Eleanor Armstrong 1934-5-27 Humboldt Richardson Grove Comment
  IRVC2496  Disporum smithii R. H. Whittaker, W. A. Niering U Humboldt Humboldt Redwoods State Park. Comment
  UC562751  Dodecatheon alpinum Joseph P. Tracy Jul 16 1930-Jul 19 1930 8930 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain (South Fork Mountain) 1676 Comment
  HSC97460  Dodecatheon hendersonii C. Witte 2007-5-8 13 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1397 Comment
  UCSB28097  Dodecatheon hendersonii Phelps, M. 1972-3-18 Humboldt 1.5 mi. from Garberville along Old Briceland Ed., 1,000 yds. north of roadside. 213 Comment
  HSC98690  Dodecatheon hendersonii subsp. hendersonii Cara Witte 2008-6-9 702 Humboldt Off National Forest 1, near Board Camp Mountain. Approximately 4 miles south of Brays Opening and 1/2 mile west of the road. 1506 Comment
  UCD55079  Downingia willamettensis Rachel Foster 1970-1 F70- 96 -11 Humboldt Hydesville. Adjacent to Hydesville School. Comment
  RSA0011677  Drosera rotundifolia C. B. Wolf 1927-8-22 778 Humboldt Big Lagoon. Comment
  HSC18756  Drymocallis glandulosa Lincoln Constance 1934-6-15 878 Humboldt Summit of Grasshopper Peak, S Fork Eel River, Bull Creek region 976 Comment
  HSC18764  Drymocallis glandulosa J. E. Lankila 1962-5-6 10 Humboldt West bank of Eel River across form Shively about 500 ft. from Bear Creek Comment
  HSC58166  Drymocallis lactea var. lactea G. L. Clifton, Griswold 1979-8-2 12232 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  CAS-BOT-BC536647  Drymocallis pseudorupestris Doris K. Kildale 1927-7-22 3817 Humboldt Lassic peaks 1661 Comment
  CAS-BOT-BC71057  Dryopteris expansa Henry M. Pollard 1946-8-11 s.n. Humboldt Perch Creek, Orleans region Comment
  HSC23414  Dryopteris expansa Mary Spindler, Roger Bucholtz 1971-11-18 126 Humboldt H.S.C. Campus SW side of Home Ec. under wooden stairway Comment
  CAS-BOT-BC197063  Echinochloa crus-galli Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC112843  Eleocharis macrostachya Joseph Prince Tracy 1934-7-30 13506 Humboldt Dry Lagoon along coast in front of South End of Stone Lagoon. 3 Comment
  CAS-BOT-BC112837  Eleocharis macrostachya Doris K. Kildale 1928-7-29 5934 Humboldt Kanman Pond, Bear River Ridge. Comment
  UC666875  Eleocharis obtusa Joseph P. Tracy 1927-8-7 8319 Humboldt Lack Pond, opposite mouth of Willow Creek Trinity River Valley 152 Comment
  HSC74892  Elymus glaucus J. P. Smith 1977-7-3 9232 Humboldt On Forest Service Road 13N01 to Fish Lake, 3.5 mi. from its junction with Highway 36 488 Comment
  HSC76550  Elymus glaucus Denis Kearns 1981-7-22 312 Humboldt Near Whiteys Peak. 1487 Comment
  UC187094  Elymus glaucus J. P. Tracy 1902-7-4 1760 Humboldt Immediate vicinity of Eureka 0 Comment
  UCD61827  Elymus glaucus J. I. Mallory 1955-6-7 113 Humboldt North end of Luke Prairie. California Forest and Range Experiment Station. 350 Comment
  HSC99475  Elymus glaucus subsp. glaucus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 131 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SEINET249776  Elymus glaucus subsp. glaucus J. P. Tracy 1936-6-9 14889 Humboldt Bear River Lodge Comment
  SEINET4683795  Elymus mollis D. A. Haskell 1966-4-23 26 Humboldt Coastal strand sand dunes near the town of Sa-; 0 Comment
  POM267994  Elymus trachycaulus subsp. trachycaulus D. D. Keck 1944-7-11 5491 Humboldt 3 miles northeast of Capetown. 152 Comment
  UC184152  Elytrigia repens Joseph P. Tracy 1912-7-7 3743 Humboldt Eureka Northern Coast Region (edge of salt marsh) 0 Comment
  HSC102919  Epilobium M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1077 Humboldt Patterson Meadows 1555 Comment
  SD38380  Epilobium angustifolium Edith A. Purer 1932-7-27 4148 Humboldt Near Samoa Comment
  HSC98714  Epilobium brachycarpum Cara Witte 2007-8-1 612 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  UC668305  Epilobium campestre Joseph P. Tracy 1938-7-5 16009 Humboldt 5 mi e Carlotta; Strong's District School House 45 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
  HSC74500  Epilobium ciliatum subsp. ciliatum Gail Newton 1980-8-10 2047 Humboldt Near Blake Mtn. 1707 Comment
  HSC74686  Epilobium ciliatum subsp. ciliatum Gail Newton 1981-8-7 2452 Humboldt Near Board Camp Mtn. 1478 Comment
  HSC76188  Epilobium ciliatum subsp. ciliatum Overton, Butler 1979-7-24 9781 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  JEPS39328  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1918-7-6 5046 Humboldt near Humboldt-Mendocino County line (i.e. near Richardson Grove); Northern Coast Ranges, South Fork of Eel River 152 Comment
  RSA225519  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-13 14380 Humboldt 10 miles west of Willow Creek. Comment
  UC583078  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-10 14340 Humboldt 15 mi e Bridgeville; Little Van Duzen River Comment
  HSC99304  Epilobium ciliatum subsp. glandulosum Jimerson, J. Pageau 1979-8-10 743 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  HSC103281  Epilobium ciliatum subsp. glandulosum John McRae 2012-9-7 Humboldt Six Rivers National Forest, Lower Trinity District, Grouse Mountain, Forest Service Road 5N04. 1576 Comment
  RSA22708  Epilobium ciliatum subsp. watsonii H. E. Parks, S. T. Parks 1937-07 24050 Humboldt Spruce Cove, Trinidad. 64 Comment
  HSC98733  Epilobium densiflorum Cara Witte 2007-8-9 633 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1584 Comment
  HSC98676  Epilobium hornemannii subsp. hornemannii Cara Witte 2007-6-21 324 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1430 Comment
  JEPS31553  Epilobium minutum Lincoln Constance 1934-6-8 838 Humboldt Cow Creek fire trail from Bull Cr. road n over divide into headwaters of Bear Cr.; South Fork Eel River, Bull Creek Region Comment
  UC1239792  Equisetum laevigatum H. E. Parks and Joseph P. Tracy 1932-5-11 9966 Humboldt along R.R. Samoa; Northern Coast Ranges 6 Comment
  CAS-BOT-BC57788  Equisetum telmateia Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley. Comment
  HSC37403  Equisetum telmateia subsp. braunii Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 512 Humboldt Along Lost Man Creek. 38 Comment
  CAS-BOT-BC278517  Eragrostis pilosa var. pilosa Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans region Comment
  UC1103227  Eragrostis pilosa var. pilosa Joseph P. Tracy 1920-8-15 5361 1/2 Humboldt Klamath River mouth of Bluff Creek (mouth of Bluff Creek); Northern Coast Ranges, , Bluff Creek 152 Comment
  CAS-BOT-BC291166  Erechtites glomeratus M. Louise Hutchinson 1913-5-1 s.n. Humboldt Eureka Comment
  POM257488  Erechtites glomeratus H. E. Parks, S. T. Parks 1937-07 24033 Humboldt Spruce Cove, Trinidad. 61 Comment
  HSC40254  Erechtites minimus Linda M. Barker 1976-8-2 1677 Humboldt Lanphere- Christensen Dunes, 3 mi. W of Arcata Comment
  HSC102066  Eremogone congesta var. congesta M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 968 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  JEPS19193  Ericameria greenei Joseph P. Tracy 1919-9-22 5273 Humboldt open places in Shasta fir belt; Trinity Summit 1889 Comment
  HSC56372  Erigeron aliceae Griswold, Butler 1979-7-11 6395 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC72616  Erigeron foliosus var. confinis J. P. Smith 1977-7-3 9259 Humboldt Six Rivers National Forest. FS Rd. 13N01, 3 mi. from its junction with Hwy. 36 549 Comment
  HSC75411  Erigeron foliosus var. confinis J. O. Sawyer, M. A. Ericksen 1980-7-7 3573 Humboldt Slopes along Aikens Creek, Adroni Research Area 457 Comment
  RSA12520  Erigeron foliosus var. confinis C. B. Wolf 1934-7-3 5916 Humboldt 21 mi. from Orick on Weitchpec Rd. Comment
  RSA259579  Erigeron foliosus var. confinis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2011 Humboldt French Camp, Bald Hills Comment
  CAS-BOT-BC300677  Erigeron foliosus var. mendocinus Doris K. Kildale 1925-7-19 1046 Humboldt Bridgeville 228 Comment
  UCR121765  Erigeron glaucus George K. Helmkamp, E. A. Helmkamp 2001-7-8 7019 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  UC726579  Erigeron glaucus A. A. Heller 1937-6-12 15915 Humboldt on the coast near the Whaling Station (Trinidad, foot of the grade leading up to the lighthouse on Trinidad Head.); Trinidad Head., Trinidad Comment
  CAS-BOT-BC295173  Erigeron inornatus Doris K. Kildale 1925-8-17 1385 Humboldt Trinity Summit - near Ranger Station 1917 Comment
  HSC102241  Erigeron inornatus var. inornatus Sydney Carothers 2011-9-17 Humboldt Bret Hole; 1.1 km SW of Trinity Summit 1579 Comment
  RSA54145  Erigeron inornatus var. inornatus H. M. Pollard 1946-8-28 s.n. Humboldt Near Summit of Orleans Mt. 1829 Comment
  HSC58125  Erigeron klamathensis Gilbert Muth 1979-8-1 12111 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1878 Comment
  CAS-BOT-BC214592  Erigeron philadelphicus Henry M. Pollard 1948-7-19 s.n. Humboldt Orleans to Van Fleet ranch Comment
  CAS-BOT-BC214576  Erigeron philadelphicus Kenneth Clark 1980-6-14 697 Humboldt Shelter Cove. North fork Dead Man's Gulch 121 Comment
  UC127577  Erigeron philadelphicus var. philadelphicus Harley P. Chandler 1901-6-1 1402 A Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  UC573410  Erigeron philadelphicus var. philadelphicus H. S. Yates 1936-6-23 5855 Humboldt 2 mi se of mouth Mad River; Eureka Quad. 30 Comment
  UC581734  Erigeron philadelphicus var. philadelphicus Joseph P. Tracy 1936-6-17 1463 Humboldt on nw slope Buck Mountain; Northern Coast Ranges, , Burr Valley 1066 Comment
  JEPS21928 Image available Erigeron robustior J. P. Tracy 1932-6-26 10252 Humboldt valley of South Yager Creek, Humboldt Co. 762 Comment
  UC1223009  Erigeron robustior Joseph P. Tracy with Mr. Murphy 1951-6-26 19581 Humboldt Twin Lakes vicinity Comment
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Sep 3 2011
  UC672919  Eriogonum compositum var. compositum Joseph P. Tracy 1932-7-12 10460 Humboldt head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  RSA21010  Eriogonum latifolium Carl B. Wolf 1937-9-12 9331 Humboldt Clam Beach 8 Comment
  HSC55189  Eriogonum nudum G. L. Clifton, Griswold 1979-8-2 12253 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  CDA30223  Eriogonum nudum M. K. Beyers, I. Shepardson 2009-9-13 259 Humboldt Roadside, in a shallow turn-out along State Route 254 (Avenue of the Giants). 0 Comment
  RSA178589  Eriogonum nudum var. nudum Joseph P. Tracy 1950-8-20 19320 Humboldt Along the Klamath River at 'Big Bar', just above Slate Creek 122 Comment
  UC54740  Eriogonum nudum var. nudum Joseph Burtt Davy and Walter C. Blasdale 1899-6-20 5705 Humboldt Hoopa Valley North Coast Ranges, Hoopa Valley Comment
  CAS-BOT-BC261722  Eriogonum nudum var. oblongifolium Henry M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region Comment
  SD22498  Eriogonum nudum var. oblongifolium Susan G. Stokes 1932-7-12 Humboldt Near Garberville Comment
  UC1198146  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1948-8-8 18095 Humboldt near school house; Iaqua 609 Comment
  SEINET3404935 Image available Eriogonum nudum var. pubiflorum Joseph P. Tracy 1916-6-20 4729 Humboldt Dobbyn Creek Comment
  HSC98098  Eriogonum umbellatum var. goodmanii Cara Witte 2007-6-20 307 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  JEPS56214  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy 1935-7-28 14328 Humboldt Head of Devil's Hole Trinity Summit Comment
  UCR131739  Eriogonum umbellatum var. nelsoniorum C. B. Wolf 1937-8-13 09221 Humboldt North Coast Range, 8 miles east of Hoopa Valley on new road toward Trinity Summit 1475 Comment
  UCR37846  Eriogonum umbellatum var. nelsoniorum Walter C. Overton, Marvin Butler 1979-7-26 9994 Humboldt North Coast Range, near Willow Creek, east fork, close to the town of Willow Creek 1341 Comment
  SEINET10551827  Eriophorum crinigerum Henry N. Bolander 1866-1 Bolander 6475 Humboldt Red Mountain. Comment
  HSC5583  Eriophyllum lanatum Paul Shields May 1955 Humboldt 4 mi. W of Hoopa Comment
  HSC75943  Eriophyllum lanatum var. achilleoides Overton, Butler 1979-7-24 9706 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  SEINET4208670  Eriophyllum lanatum var. achilleoides Thomas Nelson, Jane Nelson; James Nelson 1975-7-15 2028 Humboldt Growing on serpentine outcrop at French Camp, Bald Hills.; 0 Comment
  UC1223131  Eriophyllum lanatum var. achilleoides Joseph P. Tracy with A. H. Murphy 1951-6-26 19579 Humboldt vicinity of Twin Lakes (Snow Camp and Twin Lakes trip) Comment
  HSC97466  Eriophyllum lanatum var. achilleoides Cara Witte 2007-5-29 129 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  CAS-BOT-BC301176  Eriophyllum lanatum var. arachnoideum F. J. Kirby 1958-7-1 1213 Humboldt North of Bridgeville 457 Comment
  UC165841  Eriophyllum lanatum var. arachnoideum Joseph P. Tracy 1906-7-15 2539 Humboldt Table Bluff Northern Coast, Region about Humboldt Bay, Table Bluff 0 Comment
  RSA12526  Eriophyllum lanatum var. lanceolatum C. B. Wolf 1934-7-3 5910 Humboldt 20 miles from Orick on Weitchpec Road 152 Comment
  UC668204  Eriophyllum staechadifolium Joseph P. Tracy 1938-6-17 15958 Humboldt s of point of Cape Cape Mendocino 3 Comment
  HSC47494  Erodium cicutarium Sheila Logan 1978-4-9 18 Humboldt Fieldbrook, 0.5 mi. E of McKinleyville on Murray Rd. 122 Comment
  UC176874  Erodium cicutarium Joseph P. Tracy 1912-6-9 3675 Humboldt Alton Northern Coast Region 30 Comment
  HSC100484  Erodium cicutarium Carl C. Marshall Jun 1887 478 Humboldt Everywhere. Comment
  HSC7229  Erodium cicutarium D. E. Anderson 1963-5-19 2463 Humboldt Barry Rd., 1/2 mi. W of Kneeland school Comment
  CDA17342  Eryngium articulatum P. Haggard 2004-8-15 PDR 1285928 Humboldt North Coast Ranges; Six Rivers National Forest on Friday Ridge Rd, Willow Creek. 0 Comment
  BLMAR56  Erysimum menziesii Jennifer Anthony-Wheeler 1994-2-24 56 Humboldt Samoa/manilla dunes, growing in Samoa rare plant area, 12 Comment
  UC1199176  Erysimum menziesii Joseph P. Tracy 1901-4-14 1019 Humboldt sand dunes of ocean beach Northern Coast Region, Humboldt Bay Comment
  CAS-BOT-BC383051  Erythranthe guttata David B. Lowry 2005-5-16 PCK Humboldt Along Kneeland road, east of Slater Road 709 Comment
  SEINET10834222  Erythronium californicum Frank W. Gould 1939-5-30 Gould 826 Humboldt Top of Horse Mountain, in open Libocedrus-Pinus Jeffreyi-P. monticola forest; 4000 feet. 1220 Comment
  HSC98747  Erythronium grandiflorum Cara Witte 2008-6-2 664 Humboldt National Forest 1. 2 miles south of intersection with Forest Service Road 5N09. 1588 Comment
  UC201282  Erythronium revolutum Joseph P. Tracy 1918-5-1 4896 Humboldt Ashfield Butte Northern Coast Ranges 762 Comment
  HSC16767  Eschscholzia californica D. E. Anderson 1962-7-14 2263 Humboldt Comment
  HSC98911  Eschscholzia californica Cara Witte 2007-7-9 465 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  SEINET12102668  Eschscholzia californica J. P. Tracy 1950-1 18750 Humboldt Cape Mendocino. Sandy places at "Devil's Gate." S of point of the Cape 30 Comment
  HSC16115  Eucalyptus globulus J. W. Bosworth 1965-5-14 51 Humboldt 1 mi. N of Fairhaven on Samoa Comment
  UC450221  Eucephalus ledophyllus Joseph P. Tracy 1919-9-18 5227 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1889 Comment
  HSC100665  Eunanus douglasii Carl C. Marshall Apr 1887 377 Humboldt Hoopa Valley, dry roadsides. Comment
  UC165805  Euonymus occidentalis var. occidentalis Joseph P. Tracy 1908-6 2866 Humboldt opposite Buck Mt.; Northern Coast Ranges, Van Duzen R. Valley 762 Comment
  UC18050  Euonymus occidentalis var. occidentalis C. C. Marshall 1888-1 Humboldt Mad R. Mts. Comment
  UC1198983  Euphorbia crenulata Joseph P. Tracy 1935-5-25 13879 Humboldt Fort Seward 106 Comment
  UC1198985  Euphorbia crenulata Joseph P. Tracy 1928-2-26 8396 Humboldt near Centerville (at Fleener's Gulch); Northern Coast Ranges 30 Comment
  HSC59575  Euphorbia peplus Rick Lundquist 1979-4-24 37 Humboldt Arcata, lower Church parking lot at E end of 16th St. 46 Comment
  JEPS52427  Euphorbia spathulata Joseph P. Tracy 1926-5-2 7431 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1198978  Euphorbia spathulata Joseph P. Tracy 1935-5-12 13795 Humboldt Willow Creek; Trinity River Valley 152 Comment
  CAS-BOT-BC310678  Euthamia occidentalis Doris K. Kildale 1926-8-29 2599 Humboldt Van Duzen River near Strong's Station Comment
  CAS-BOT-BC310679  Euthamia occidentalis Joseph P. Tracy 1927-10-8 8389 Humboldt Arcata Bottom 15 Comment
  HSC22607  Euthamia occidentalis J. P. Smith, J. O. Sawyer 1971-10-16 5050 Humboldt 2.1 mi. E of Carlotta on Calif. 36 Comment
  RSA44303  Euthamia occidentalis H. M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region Comment
  SEINET3243998  Euthamia occidentalis Joseph P. Tracy 1931-1 9636 Humboldt Lack Pond; in Trinitiy River Valley, opposite mouth of Willow Creek. 152 Comment
  UC1199324  Euthamia occidentalis Joseph P. Tracy 1919-9-14 5206 Humboldt near mouth, (valley of Trinity River) Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  OBI10874  Fallopia sachalinensis T. C. Fuller 1968-7-30 17447 Humboldt NE side of Hwy 101 fwy overpass, Fields landing Comment
  UC1607839  Festuca Joseph P. Tracy and Harold E. Parks 1934-6-27 11078 Humboldt Grouse Mountain 1432 Comment
  HSC79456  Festuca arundinacea Kenneth Clark 1980-4-18 600 Humboldt Above Dead Man's Gulch 137 Comment
  HSC9852  Festuca californica D. C. Juve 1964-5-16 36 Humboldt Campbell Cr. Ranger Station. Hwy. 96. Hillside above Trinity River Comment
  HSC90039  Festuca occidentalis Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-28 66 Humboldt Hwy. 299, 4 mi. W of Burnt Ranch 259 Comment
  UCD66357  Festuca rubra R. Tofsrud 1948-9-1 Humboldt Road junction near summit of Horse Mt. 1463 Comment
  UC1103709  Festuca subuliflora Joseph P. Tracy 1937-5-30 15306 Humboldt 5 mi n Blocksburg; Larrabee Creek 457 Comment
  UC53425  Festuca subuliflora Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5407 Humboldt Hubbards Station Comment
  HSC21492  Foeniculum vulgare Wm. F. Bowman 1968-11-9 Humboldt Along E edge of Humboldt Bay, along elevated area near railroad tracks. Comment
  CAS-BOT-BC453524  Fragaria chiloensis Bolemanson 1908-5-15 s.n. Humboldt Samoa Comment
  HSC23707  Fragaria vesca J. O. Sawyer 1970-6-27 2309 Humboldt Site 318. 1494 Comment
  HSC44523  Fragaria vesca Brad Klipfel 1973-7-1 130 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC45402  Fragaria vesca Thomas W. Nelson, Jane P. Nelson 1977-6-19 3510 Humboldt Alder Springs 1524 Comment
  JEPS44861  Fragaria vesca W. L. Jepson 1902-7-1 1973 Humboldt Redwood Creek; toward village of the Redwood Indians, Berry Ranch Comment
  SBBG26928  Frangula californica subsp. californica C. B. Wolf 1934-6-30 5842 Humboldt back of Shelter Cove 60 Comment
  SBBG28961  Frangula californica subsp. californica C. B. Wolf 1927-8-30 Humboldt 3 mi S of Thorn on the old coast rd Comment
  CAS-BOT-BC59958  Frangula purshiana H. E. Parks; S. T. Parks 1937-6-1 24018 Humboldt Spruce Cove, Trinidad. Comment
  HSC89760  Frangula purshiana M. Roantree 1985-5-30 73 Humboldt E side of Trinidad Head along dirt road Comment
  HSC95924  Frangula purshiana subsp. purshiana Will Ferrand 2001-6-17 18 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  HSC99392  Frangula purshiana subsp. purshiana K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 41 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  POM130724  Frasera albicaulis var. nitida H. P. Chandler 1901-06 1486 Humboldt Klamath River. Comment
  UC176687  Fritillaria affinis Joseph P. Tracy 1913-6-17 4179 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  UC1225860  Fritillaria affinis Joseph P. Tracy 1947-4-27 17674 Humboldt Table Bluff, on Tompkins Hill Road Table Bluff; , Tompkins Hill Road 152 Comment
  UC30119  Fritillaria recurva W. C. Blasdale 1896-6-9 Humboldt Pilot Ridge Comment
  CAS-BOT-BC422450  Fumaria officinalis Joseph P. Tracy 1949-4-1 18277 Humboldt Eureka 30 Comment
  JEPS25693  Galium aparine P. C. Hutchison 1961-5-22 2021 Humboldt US 299 5.4 mi ne Klamath River bridge at Weitchpec (10 mi sw of Orleans, w side of river); Klamath River Comment
  HSC71493  Galium bolanderi M. A. Baker 1980-6-7 1797 Humboldt Near Brush Mtn. 1128 Comment
  UC35335  Galium bolanderi Chesnut and Drew 1888-7-21 Humboldt S. Fork Mt. Comment
  UC602527  Galium californicum subsp. californicum Joseph P. Tracy 1936-6-27 15000 Humboldt Miranda South Fork Eel River 121 Comment
  UC176053  Galium parisiense Joseph P. Tracy 1913-7-20 4379 Humboldt Redwood Creek crossing at Berry's; Northern Coast Ranges 304 Comment
  UC198664  Galium parisiense Joseph P. Tracy 1916-6-19 4710 Humboldt Bosworth's Northern Coast Ranges, Laribee Creek 457 Comment
  JEPS52974  Galium porrigens var. porrigens Lauramay T. Dempster and Jean Colton 1963-8-7 3888 Humboldt e Shelter Cove Comment
  HSC39162  Galium triflorum D. E. Anderson, J. P. Smith 1971-6-28 - 1241 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC57333  Galium triflorum Overton, Butler 1979-7-26 9951 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  OBI33244  Galium triflorum David J. Keil 1983-7-1 17258 Humboldt Along Bull Crk Flats Rd 1.4 mi W of US 101. Humboldt Redwoods State Park Comment
  CHSC68553  Gamochaeta ustulata Vernon H. Oswald 1997-4-29 8358 Humboldt Coastal Dunes. Samoa Dunes Recreation Area at the south end of the North Spit separating Humboldt Bay from the ocean. 0 Comment
  JEPS20474  Gamochaeta ustulata Joseph P. Tracy 1936-8-23 15163 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC562618  Gamochaeta ustulata Joseph P. Tracy 1936-5-29 14830 Humboldt 2 mi n Orick (on Bald Hills road) 152 Comment
  CAS-BOT-BC188530  Garrya elliptica Milo S. Baker 1927-8-16 2442 a Humboldt Samoa Comment
  CAS-BOT-BC188550  Garrya elliptica J. P. Tracy 1911-10-22 3549 Humboldt Immediate vicinity of Eureka 152 Comment
  UC154097  Garrya elliptica J. P. Tracy 1901-4-14 1030 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa Comment
  CAS-BOT-BC182147  Garrya fremontii L. B. Kildale 1930-8-3 10336 Humboldt Chaparall Mt. near Bug Creek 914 Comment
  JEPS66600  Gaultheria ovatifolia Joseph P. Tracy 1926-6-27 7670 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1463 Comment
  HSC7815  Gaultheria shallon Francis Winter 1960-4-23 Humboldt Samoa peninsula 6 mi. W of Arcata Comment
  HSC91900  Gaultheria shallon E. Mackey 1986-12-18 Humboldt Patrick's Point State Park, by trail to Red Alder Campground Comment
  RSA232641  Gaultheria shallon Larry E. DeBuhr, Gary D. Wallace 1972-5-22 607 Humboldt About 25 miles north of Arcata on the south end of Big Lagoon. Comment
  RSA257020  Gaultheria shallon Gary D. Wallace, Larry E. DeBuhr, G. Ansley Wallace 1972-5-22 1065 Humboldt Between Big Lagoon Co. Pk. and Hwy 101, south of Orick. Comment
  SEINET2028836 Image available Gaultheria shallon Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15251 Humboldt 2 miles north of Fortuna Comment
  UCD117455  Gaultheria shallon D. Sanchez-Mata 1996-6-28 s.n. Humboldt Blue Lake-Willow Creek. Lord-Ellis Summit. 560 Comment
  UCSB25031  Gaultheria shallon Keefe, Joseph 1967-7-8 Humboldt South edge of Big Lagoon, 20 miles north of Eureka 1 Comment
  UC1196969  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1919-9-18 5239 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  POM214930  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1930-7-16 9069 Humboldt Northern Coast Ranges: South Fork Mountain; openings in fir forest near McKay Camp. 1677 Comment
  UC1196958  Gayophytum humile Joseph P. Tracy 1933-7-26 12918 Humboldt Grouse Mountain 1524 Comment
  UC144065  Gayophytum humile Joseph P. Tracy 1908-6 2688 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC14650  Genista monspessulana Francis Winter 1960-3-26 Humboldt Samoa Pennisula, 3 mi. N of U.S. Coast Guard Station. Comment
  JEPS47047  Gentiana affinis var. ovata W. L. Jepson 1902-8-1 2134 Humboldt Loleta 60 Comment
  UC1198638  Gentiana affinis var. ovata J. P. Tracy 1896-8 15 Humboldt immediate vicinity Eureka; Rick's Prairie 0 Comment
  UC154164  Gentiana affinis var. ovata Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6199 Humboldt near Ferndale; Russ Ranch Comment
  JEPS47022  Gentiana sceptrum Joseph P. Tracy 1924-8-3 6768 Humboldt Northern Coast Region, Big Lagoon Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  RSA69772  Gentiana sceptrum R. S. Woglum 1938-8-29 2038 Humboldt Trinidad Comment
  HSC8642  Geranium bicknellii D. E. Anderson 1963-5-25 2497 Humboldt 4 mi. E of Petrolia. Comment
  UC1197397  Geranium bicknellii Joseph P. Tracy 1949-8-4 18422 Humboldt Mud Springs Trinity Summit 1341 Comment
  CDA43207  Geranium molle Richard R. Halse 2015-3-26 9382 Humboldt Eureka; by a Texaco station near 3543 Broadway St. ((U.S. Highway 101) and its intersection with McCullens Ave. Comment
  RSA600894  Geranium molle Louis C. Wheeler 1959-8-2 7622 Humboldt Shelter Cove. Comment
  UC164808  Geranium oreganum Joseph P. Tracy 1911-7-4 3287 Humboldt near Willow Creek (w side of Trinity River); Northern Coast Ranges, Trinity River 243 Comment
  SEINET12278778  Gilia capitata L. K. Henry 1971-1 s.n. Humboldt along Rt 36, 2 mi E of Dinsmore in Six Rivers National Forest Comment
  UC52536  Gilia capitata subsp. capitata Mrs. M. H. Manning Humboldt Hupa Comment
  JEPS69517  Gilia capitata subsp. capitata Lincoln Constance 1934-5-23 621 Humboldt sw slope upper end Look Prairie (South Fork Eel River, Bull Creek Region); Bull Creek Region, South Fork Eel River, Look Prairie 365 Comment
  CAS-BOT-BC225471  Gilia millefoliata Tom Craig 1941-6-29 s.n. Humboldt Samoa Comment
  CHSC52941  Gilia millefoliata L. P. Janeway 1984-4-11 731 Humboldt On the North Spit of Humboldt Bay; Northwest of the boat ramp and north of the Coast Guard Sta. 4 Comment
  HSC16987  Gilia millefoliata Norman H. Moe 1962-5-17 Humboldt Lanphere's Place Comment
  HSC23827  Gilia millefoliata Tim Baroni 1971-6-26 64 Humboldt Out the Samoa Peninsula just opposite the Georgia Pacific pulp mill Comment
  UC198642  Gilia millefoliata Joseph P. Tracy 1917-5-30 4794 Humboldt Little River Beach , Little River Beach (Northern Coast Ranges) 6 Comment
  UC921140  Gilia millefoliata Joseph P. Tracy 1948-6-12 18067 Humboldt sand dunes near Samoa (on Humboldt Bay); , near Samoa 6 Comment
  UC1223069  Glebionis segetum Joseph P. Tracy 1950-6-17 18831 Humboldt at Eureka Comment
  UC179951  Glechoma hederacea Joseph P. Tracy 1914-5-17 4475 Humboldt ridge between Freshwater and Ryans Slough (at abandoned Cumens claim); Northern Coast Region, Humboldt Bay Region 304 Comment
  HSC99484  Glyceria elata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 143 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  HSC92863  Glyceria fluitans Gordon Leppig 1995-4-6 243 Humboldt Arcata, Alder Grove Pond. 12 Comment
  CAS-BOT-BC302537  Gnaphalium palustre H. E. Parks; S. T. Parks 1937-8-1 24080 Humboldt Spruce Cove, Trinidad Comment
  HSC49136  Gnaphalium palustre R. Becking 1979-7-29 Humboldt Van Duzen River at Cheatam Grove E of Carlotta Comment
  SEINET11836330  Gnaphalium palustre H. E. Parks, Parks, S. T. 1937-1 24080 Humboldt Spruce Cove, Trinidad Comment
  POM247117  Gnaphalium ramosissimum Joseph P. Tracy 1936-8-24 15169 Humboldt Fickle Hill, 6 miles SE of Arcata. 610 Comment
  HSC100580  Godetia quadrivulnera Carl C. Marshall Jul 1886 81 Humboldt Hills 2,000 ft. and upwards. Comment
  HSC54649  Goodyera oblongifolia Overton, Butler 1979-7-25 9850 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  CAS-BOT-BC304742  Grindelia hirsutula John Thomas Howell 1937-7-31 13720 Humboldt Salt marsh bordering Humboldt Bay at Arcata Comment
  HSC38496  Grindelia hirsutula R. Sutherland 1976-10-31 1 .311076 Humboldt Disturbed road edge of county road 290 Comment
  HSC90398  Grindelia hirsutula Jean Hanson 1980-8-28 115 Humboldt Indian (Gunther) Island. In Humboldt Bay, city of Eureka. Across from the Guard Station. From ca. 20 to ca. 50 ft. from high tide line. 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
  POM232053  Grindelia hirsutula Roxana S. Ferris 1937-8-21 9388 Humboldt Face of cliff above beach, Shelter Cove. Comment
  UC520422  Grindelia hirsutula J. A. Moore and J. A. Steyermark 1931-8-9 3687 Humboldt 10 mi n Trinidad 1 Comment
  CDA6170  Grindelia stricta var. stricta T. C. Fuller 1961-9-27 7043 Humboldt 1 mile north of Indianola Road, Highway 101, 5 miles north of Eureka. 0 Comment
  RSA168829  Grindelia stricta var. stricta Joseph P. Tracy 1947-11-9 17944 Humboldt South side, at 'Camp Weeott;' Mouth of Eel River. 3 Comment
  HSC48108  Hackelia micrantha Brad Klipfel 1973-7-15 203 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC58072  Hackelia micrantha G. L. Clifton, Griswold 1979-8-1 11963 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC74193  Hackelia micrantha M. A. Baker 1980-7-22 3127 Humboldt Near Grogan Hole. 1676 Comment
  HSC39985  Hedera helix Linda M. Barker 1976-9-3 1687 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC630634  Hedera helix Joseph P. Tracy 1939-1-22 16185 Humboldt on Van Duzen R. Blue Slide 91 Comment
  HSC36595  Helenium bigelovii J. O. Sawyer, Thomas W. Nelson, Linda M. Barker 1975-9-4 1305 Humboldt Megwill Point on Elkhead, N of Trinidad in Trinidad State Beach 15 Comment
  POM203674  Helenium bolanderi I. L. Wiggins 1932-7-19 5891 Humboldt 1.5 miles N of Trinidad Head. Comment
  RSA93884  Helenium bolanderi F. W. Peirson 1923-7-11 3910 Humboldt 7 miles north of Arcata. Comment
  SEINET11840975  Helenium bolanderi J. P. Tracy 1901-1 1204 Humboldt Humboldt Bay 30 Comment
  UC175964  Helenium bolanderi Joseph P. Tracy 1912-7-22 3795 Humboldt between Fields Landing and Elk River; Northern Coast Region, Humboldt Bay Region 0 Comment
  UC582666  Helenium puberulum Joseph P. Tracy 1934-7-14 13405 Humboldt near Blue Lake; Mad River 15 Comment
  RSA695692  Helenium puberulum J. R. Bruff 1937-8-17 943 Humboldt Richardson Grove. Comment
  HSC25942  Helminthotheca echioides Thomas W. Nelson 1970-10-31 294 Humboldt Eel River near N end of the Scotia Bluff. Comment
  HSC6065  Helminthotheca echioides D. E. Anderson 1963-10-16 2884 Humboldt Jacoby Creek Rd. Comment
  HSC40031  Hemizonella minima Thomas W. Nelson, Jane P. Nelson 1976-6-22 2879 Humboldt On SW-facing slope at Goat Mtn. lookout 1666 Comment
  HSC36492  Hemizonia congesta subsp. clevelandii Thomas W. Nelson, James Nelson 1975-9-3 2192 Humboldt Along N side of Ashfield Butte Comment
  CAS-BOT-BC310002  Hemizonia congesta subsp. tracyi Alice Eastwood; John Thomas Howell 1937-6-23 4805 Humboldt Little Van Duzen River Comment
  JEPS82128  Hemizonia congesta subsp. tracyi Rimo Bacigalupi 1959-7-7 7249 Humboldt immediately behind headland of Cape Mendocino (steep grade of coast road, just s of road summit at this point) 30 Comment
  UC180194  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1906-7-4 2530 Humboldt Hydesville 60 Comment
  RSA21658  Hemizonia tracyi C. B. Wolf 1937-6-14 8813 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  JEPS14232  Heracleum lanatum Joseph P. Tracy 1934-7-27 13491 Humboldt near mouth Mad R. 15 Comment
  HSC55856  Heracleum maximum G. L. Clifton, Terry Griswold 1979-7-25 10845 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC56157  Heracleum maximum G. L. Clifton, Terry Griswold 1979-8-1 12022 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC74152  Heracleum maximum Gail Newton 1980-7-20 1614 Humboldt Near Bell Swamps 1426 Comment
  HSC13056  Hesperocyparis macrocarpa C. E. Fellows 1970-12-7 369 Humboldt HSC Campus, Arcata Comment
  UC1212422  Hesperolinon micranthum Joseph P. Tracy 1925-7-12 7202 Humboldt hillsides w of Trinity River Valley (near the South Fork); Northern Coast Ranges 304 Comment
  SEINET10460663  Heterocodon rariflorum Tracy TRACY 3329 Humboldt WILLOW CR. Comment
  SEINET10460687  Heterocodon rariflorum Lincoln Constance Constance 915 Humboldt GRASSHOPPER PEAK 3000 Comment
  CAS-BOT-BC143654  Heteromeles arbutifolia Doris K. Kildale 1927-12-1 4214 Humboldt Klamath River at Orleans Comment
  CAS-BOT-BC311076  Heterotheca oregona var. rudis Alice Eastwood 1921-7-21 10667 a Humboldt Van Duzen River Comment
  UC485473  Heterotheca oregona var. rudis unknown Humboldt Chandler, <rest illegible> Klamath River Comment
  HSC44335  Heuchera micrantha Brad Klipfel 1975-6-17 676 Humboldt Horse Mtn. Comment
  BLMAR81  Heuchera micrantha Jennifer Anthony-Wheeler 1994-6-2 81 Humboldt IAQUA, growing along moist, rocky banks 3/4mi from pvd 853 Comment
  HSC98607  Heuchera micrantha var. micrantha Cara Witte 2008-7-14 890 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. At end of the road. 1407 Comment
  CAS-BOT-BC312391  Hieracium albiflorum Doris K. Kildale 1928-6-24 7078 Humboldt Redwood Creek at Berry's 289 Comment
  HSC57107  Hieracium albiflorum Overton, Butler 1979-7-25 9845 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  UC582414  Hieracium albiflorum Joseph P. Tracy 1933-8-30 13039 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC47961  Hieracium albiflorum Brad Klipfel 1974-5-25 429 Humboldt Horse Mtn. Comment
  UC1223084  Hieracium albiflorum Joseph P. Tracy 1948-9-5 18200 Humboldt near Grizzly Camp; Trinity Summit Comment
  HSC57940  Hieracium greenei G. L. Clifton, Griswold 1979-7-31 11607 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC58147  Hieracium greenei Muth 1979-8-1 12190 Humboldt Near Red Cap Prairie 1781 Comment
  CAS-BOT-BC316003  Hieracium nudicaule Harley P. Chandler 1901-6-1 1489 Humboldt Klamath River 426 Comment
  CHSC10109  Hierochloe occidentalis J. W. Johnson 1962-3-14 1120 Humboldt Woods at the side of Miller Lane, Lanphere Farm, Samoa Penninsula. Comment
  HSC49817  Hippuris vulgaris R. York 1979-4-16 237 Humboldt Between Arcata and Eureka along Hwy. 101 Comment
  HSC10124  Holcus lanatus T. F. Newman 1966-5-1 6647 Humboldt Jackson Ranch, Arcata Bottoms. Comment
  HSC59126  Holcus lanatus Terry Roth 1979-5-26 88 Humboldt Arcata, field off Sunset Ave., near the old mill location. Comment
  RSA246896  Holcus lanatus R. F. Thorne, P. Everett 1965-8-8 35267 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  UCD84909  Holcus lanatus J. I. Mallory 1955-7-22 117 Humboldt Peavine Ridge, 1 mile north of Luke Prairie. 701 Comment
  UC466572  Holodiscus discolor Mrs. M. H. Manning 1901-6-7 59 Humboldt Hupa Comment
  HSC102144  Hordeum brachyantherum subsp. brachyantherum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1051 Humboldt Patterson Meadows 1566 Comment
  UC1103486  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1943-7-18 17439 Humboldt Big Lagoon 6 Comment
  UC418997  Hordeum brachyantherum subsp. brachyantherum Parks and Tracy 1925-6-1 2767 Humboldt coatal plain around Humboldt Bay (Eureka); , Ereka Comment
  UC526787  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1932-7-10 10389 Humboldt wet meadow at Corral Prairie (Trinity Summit); Klamath Mountains, Trinity Summit 1524 Comment
  CAS-BOT-BC284893  Hordeum murinum subsp. leporinum Henry M. Pollard 1948-7-26 s.n. Humboldt Orleans Comment
  UC902137  Horkelia californica Joseph P. Tracy 1942-9-20 17323 Humboldt 2 mi s town (along edges of foothills); Field's Landing 6 Comment
  HSC100517  Hosackia purshiana Carl C. Marshall Jun 1885 83 Humboldt Near Bug Creek. Comment
  HSC62699  Hydrocotyle ranunculoides Michelle Stevens 1979-5-18 118 Humboldt Ponds across from Clam Beach 0 Comment
  HSC57649  Hydrophyllum occidentale G. L. Clifton, Griswold 1979-7-25 10819 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  JEPS1639  Hydrophyllum tenuipes Joseph P. Tracy 1937-7-25 15538 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC169025  Hydrophyllum tenuipes W. C. Blasdale 1896-6-3 Humboldt Blue Lake Comment
  UC177201  Hydrophyllum tenuipes Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3617 Humboldt near Hydesville; Northern Coast Region 30 Comment
  HSC13540  Hydrophyllum tenuipes Jack Rockwell 1962-5-5 60 Humboldt W side Jacoby Creek 18 Comment
  UC35071  Hypericum formosum var. scouleri Chesnut and Drew 1888-7-30 Humboldt Grouse Creek Comment
  UC1198419  Hypericum formosum var. scouleri J. P. Tracy 1898-7-5 249 Humboldt near Ryan's Slough School House on Worthington Prairie (immediate vicinity of Eureka) 0 Comment
  CAS-BOT-BC401230  Hypericum perforatum J. H. Thomas 1949-6-12 899 Humboldt Near Klamath River, about 1/2 mile north of town of Orleans Comment
  HSC41265  Hypericum perforatum Brad Klipfel 1974-7-23 458 Humboldt Horse Mtn. along disturbed ridge rd. E of the towers Comment
  RSA47107  Hypericum perforatum Doris K. Kildale 1925-6-20 711 Humboldt coast above Big Lagoon Comment
  CAS-BOT-BC312887  Hypochaeris glabra Alice Eastwood 1923-8-16 12326 Humboldt Carlotta Comment
  UC1069674  Hypochaeris radicata H. L. Person 1931-7-30 L.H. 25 Humboldt Fieldbrook Eureka Quad. Comment
  UC1199472  Hypochaeris radicata J. P. Tracy 1911-6-25 3248 Humboldt immediate vicinity Eureka (at Bucksport) 0 Comment
  HSC96744  Iliamna latibracteata M. Mesler 2006-7-28 625 Humboldt E of Grouse Mtn., 2.1 mi. from NF 1, below road. 1448 Comment
  SEINET10830077 Image available Iliamna latibracteata Joseph P. Tracy 1938-8-14 Tracy 16104 Humboldt Willow Creek anyon, along Trinity Highway. 762 Comment
  UC668131 Image available Iliamna latibracteata Joseph P. Tracy 1938-8-14 16104 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
Read comments
Feb 27 2012
  HSC13857  Iris douglasiana Elrid H. Spinas 1948-6-16 59 Humboldt Horse Mtn. Comment
  SD90155  Iris douglasiana Benjamin C. Stone 1952-6-20 116 Humboldt At Sone Lagoon, 2 miles south of Orick on Highway 101. 14 Comment
  UC275571  Iris douglasiana Joseph P. Tracy 1924-9-21 6894 Humboldt Eureka; Northern Coast Ranges 0 Comment
  HSC13862  Iris douglasiana S. R. Johnson 1965-4-16 44 Humboldt 1.5 mi. S of Luffenholtz Beach Comment
  SEINET4170715  Iris macrosiphon Unknown 1924-7-4 6715 Humboldt Northern Coast Ranges of CA, Snow Camp 1372 Comment
  UC1196390  Iris macrosiphon Joseph P. Tracy 1940-5-17 16547 Humboldt McClellan Mt. 762 Comment
  RSA134578  Iris purdyi Percy C. Everett, E. K. Balls 1959-10-26 23976 Humboldt 5.3 mi SE from Honeydew along old coast road to Ettersburg. 427 Comment
  RSA114085  Iris purdyi Rimo C. Bacigalupi, L. Constance, Joseph P. Tracy, Reid V. Moran, R. L. Rodriguez, Sherwin Carlquist 1951-6-14 3414 Humboldt Near Snow Camp, ridge between Mad River and Redwood Creek, Bald Mountain 1433 Comment
  SD90234  Iris purdyi Benjamin C. Stone 1952-6-23 142 Humboldt Dense redwood forest in Humboldt Redwoods State Park. Comment
  HSC48416  Iris tenax subsp. klamathensis J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9925 Humboldt Ishi Pishi Rd., 2.5 mi. from its junction with Hwy. 96 in Orleans 213 Comment
  RSA43869  Isatis tinctoria H. M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek near Orleans. Comment
  CHSC57145  Isolepis cernua L. P. Janeway 1983-9-24 700 Humboldt 10-30 ft from water line of Big Lagoon at county campground (south corner of the lagoon). 3 Comment
  HSC87619  Ixia maculata Jana Kattenhorn 1971-5-26 258 Humboldt HSU campus Comment
  RSA246906  Jaumea carnosa R. F. Thorne, P. Everett 1965-8-8 35279 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  UC183674  Juncus bolanderi Joseph P. Tracy 1908-7-22 2907 Humboldt between Van Duzen and Mad Rivers (on Dinsmore's Ranch); Northern Coast Region 1066 Comment
  HSC74173  Juncus confusus M. A. Baker 1980-7-22 3115 Humboldt Near Grogan Hole 1676 Comment
  HSC98841  Juncus covillei Cara Witte 2008-7-16 912 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC184085  Juncus effusus subsp. pacificus Joseph P. Tracy 1906-8-18 2548 Humboldt Eureka Northern Coast Region 0 Comment
  JEPS63830  Juncus effusus subsp. pacificus Lincoln Constance 1934-6-25 924 Humboldt 4 mi n Dyerville (and of n boundary of Humbolt Redwood Park, on Redwood Highway); South Fork Eel River, Bull Creek Region, Englewood Comment
  HSC14018  Juncus ensifolius H. E. Parks Jun 1934 5274 Humboldt Spruce Cove, Trinidad Comment
  HSC58092  Juncus exiguus G. L. Clifton, Terry Griswold 1979-8-1 12005 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC104132  Juncus falcatus subsp. falcatus C. Sander 2007-8-24 33096 Humboldt Ma-le'l Dunes Cooperative Management Area. 8 Comment
  UC167841  Juncus falcatus subsp. sitchensis Schmidt Humboldt Humboldt Bay Comment
  CDA39191  Juncus lescurii Gordon Leppig 1999-10-3 1259 Humboldt Big Lagoon County Park, Big Lagoon Bog. Comment
  POM160259  Juncus occidentalis Joseph P. Tracy 1926-7-5 7724 Humboldt Valley of South Yager Creek. 762 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
  HSC76529  Juncus patens Alerie Gizinski 1981-8-31 339 Humboldt Near Whiting Spring 1231 Comment
  UC183961  Juncus patens Joseph P. Tracy 1912-7-26 3848 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1225905  Kalmia polifolia subsp. microphylla Joseph P. Tracy 1942-6-23 17262 Humboldt Trinity Summit, at Water Dog Lakes Water Dog Lakes; Trinity Summit, Water Dog Lakes 1889 Comment
  CAS-BOT-BC235887  Keckiella corymbosa Carl B. Wolf 1927-8-30 1237 Humboldt 2 mi. so. of Petrolia on Matole [Mattole] River near where road crosses river Comment
  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
  UC602548  Kelloggia galioides Joseph P. Tracy 1930-7-19 9081 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  JEPS3419  Kickxia elatine Mrs. Emanuel Fritz 1934-8-4 Humboldt Phillipsville South Fork Eel River (Greenwald orchard, w Humboldt County) Comment
  UC1222816  Kickxia elatine Joseph P. Tracy 1951-7-14 19623 Humboldt near Willow Creek (borders of Lack Pond); Lack Pond Comment
  CAS-BOT-BC273597  Koeleria pyramidata Harley P. Chandler 1901-6-1 1342 Humboldt North Coast Ranges. Hupa Indian Reservation 304 Comment
  HSC57881  Kyhosia bolanderi Overton, Butler 1979-7-31 11419 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC1199393  Kyhosia bolanderi Joseph P. Tracy 1932-7-16 10613 Humboldt Corral Prairie; Trinity summit 1584 Comment
  UC1223222  Lapsana communis Joseph P. Tracy 1950-7-6 18984 Humboldt 2 mi w Bridgeville (along the Trinity Highway) 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
  RSA94807  Lapsana communis F. W. Peirson 1926-7-12 7040 Humboldt Redwood Creek, Orick. Comment
  SEINET11811250  Lapsana communis J. P. Tracy 1950-1 19275 Humboldt 1 mi W of lower end of Croghan Hole, Trinity Summit Comment
  RSA167198  Lasthenia californica Joseph P. Tracy 1942-5-16 17357 Humboldt Near Garberville, on road to Harris, ! mile NE of town. 305 Comment
  UC128624  Lasthenia californica subsp. californica Joseph Burtt Davy and Walter C. Blasdale 1899-6-9 5380 Humboldt Harris Comment
  JEPS10178  Lasthenia californica subsp. californica W. L. Jepson 1902-6-10 1885 Humboldt Ft. Seward Ranch Ridge 1219 Comment
  UC169054  Lasthenia glaberrima Joseph P. Tracy 1912-7-21 3779 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC552256  Lasthenia glaberrima Harold E. Parks and Joseph P. Tracy 1935-6-16 11274 Humboldt lower nw slopes Buck Mt. 792 Comment
  JEPS55246 Image available Lathyrus japonicus Joseph P. Tracy 1912-7-7 3736 Humboldt Eureka Northern Coast Region 0 Comment
  BLMAR719  Lathyrus littoralis Jennifer Wheeler 2011-5-20 719 Humboldt King range, Mattole Beach Sand Dunes 3 Comment
  CHSC68555  Lathyrus littoralis Vernon H. Oswald 1997-4-29 8359 Humboldt Samoa Dunes Recreation Area at the south end of the North Spit separating Humboldt Bay from the ocean. 0 Comment
  HSC47485  Lathyrus littoralis Sheila Logan 1978-4-7 3 Humboldt Samoa sand dunes, 1/4 mi. N of Coast Guard Station. Comment
  HSC48069  Lathyrus littoralis Thomas W. Nelson 1978-4-23 3878 Humboldt NW of Samoa Comment
  UCD106379  Lathyrus littoralis Roman Gankin 1965-8-6 552 Humboldt 1.3 miles south of Samoa, Samoa Peninsula. Comment
  RSA249401  Lathyrus palustris D. E. Anderson, T. Nelson, S. Dowty 1972-6-17 5702 -A Humboldt McKeown Ranch north of Dinsmore Comment
  UC1222411  Lathyrus polyphyllus Joseph P. Tracy 1948-7-11 18074 Humboldt along Trinity Highway Willow Creek Canyon Comment
  UC162840  Lathyrus polyphyllus Joseph P. Tracy Jun 27 1908-Jun 30 1908 2731 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC495708  Lathyrus polyphyllus Joseph P. Tracy 1932-7-20 10735 Humboldt just w Corral Prairie; Klamath Mountains 1524 Comment
  HSC45101  Lathyrus sphaericus R. Sutherland 1978-5-12 4 .12578 Humboldt McKee Flat 288 Comment
  UC1222402  Lathyrus torreyi Joseph P. Tracy 1943-7-18 17430 Humboldt East Fork of Willow Creek, Willow Creek Canyon, along Trinity Highway Willow Creek Canyon Comment
  RSA74591  Lathyrus tracyi C. L. Hitchcock 1949-6-8 19086 Humboldt 3 miles SE of Willow Creek, along Highway #299. Comment
  SEINET956313  Lathyrus vestitus Joseph P. Tracy 1929-1 8579 Humboldt Phillipsville. Comment
  UC931756  Lathyrus vestitus C. L. Hitchcock 1949-6-8 19096 Humboldt 2 mi w Blue Lake (along Highway 299) Comment
  SEINET12158645  Lathyrus vestitus subsp. bolanderi J. P. Tracy 1949-1 18327 Humboldt on the Butter Valley Rd, 2miE of Kneeland 610 Comment
  UC931335  Lathyrus vestitus var. ochropetalus C. L. Hitchcock 1949-6-8 19093 Humboldt 1 mi w Willow Creek (near Highway 299) Comment
  CAS-BOT-BC325926  Layia carnosa Harley P. Chandler 1901-5-1 1150 Humboldt Humboldt Bay 3 Comment
  JEPS40021  Layia gaillardioides W. L. Jepson 1902-8-3 2140 Humboldt Bear River Range to Petrolia Comment
  CAS-BOT-BC274330  Leersia oryzoides Henry M. Pollard 1947-8-7 s.n. Humboldt Klamath River's edge nr. woods on placer mine, Orleans region Comment
  UC582428  Leontodon saxatilis subsp. saxatilis Joseph P. Tracy 1933-8-22 12982 Humboldt near Fields Landing (around Humboldt Bay); Northern Coast Region, around Humboldt Bay 6 Comment
  UC492270  Lepidium nitidum Joseph P. Tracy 1932-4-24 9809 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  CAS-BOT-BC226528  Leptosiphon acicularis Doris K. Kildale 1927-7-10 3736 Humboldt Gans Prairie - Bald Hills road Comment
  SEINET3363433 Image available Leptosiphon androsaceus Victor Duran 1933-5-10 Humboldt Near Blocksburg Comment
  UC249851  Lessingia nemaclada Joseph P. Tracy 1923-9-10 6546 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  JEPS20620  Lessingia nemaclada Joseph P. Tracy 1929-8-18 8656 Humboldt on Van Duzen River opposite Buck Mountain; Northern Coast Ranges, Dinsmore's Ranch 670 Comment
  UC1199332  Lessingia nemaclada Joseph P. Tracy 1929-8-25 8662 Humboldt at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  HSC3106  Leucojum aestivum M. S. Miller 1965-3-12 2 Humboldt Arcata, 317 Laurel Dr. Comment
  HSC36171  Lewisia cotyledon var. howellii J. P. Smith 1973-5-4 6367 Humboldt 2 mi. S of Somes Bar on Hwy. 96 Comment
  CAS-BOT-BC283515  Leymus X vancouverensis Malcom A. Nobs; S. Galen Smith 1949-8-3 1204 Humboldt Salt marshes bordering Humboldt Bay, ca 2 miles N of Eureka Comment
  RSA259563  Leymus vancouverensis D. E. Anderson, J. P. Smith 1971-6-28 J- 1260 Humboldt 2.5 miles South of Blue lake along Mad River Comment
  CAS-BOT-BC436497  Ligusticum apiifolium Alice Eastwood; John Thomas Howell 1937-6-26 5073 Humboldt Near Berry Summit Comment
  UC154077  Ligusticum apiifolium Joseph P. Tracy 1906-6-24 2505 Humboldt near top Humboldt Hill; Northern Coast Region, Humboldt Bay 0 Comment
  HSC70627  Ligusticum californicum J. M. DiTomaso 1980-6-27 1623 Humboldt 6 mi from Orleans on Gasquet-Orleans Rd. Comment
  UC205462  Lilaeopsis occidentalis Joseph P. Tracy 1920-8-29 5391 Humboldt mouth of Little R.; Northern Coast Ranges 6 Comment
  UC1198239  Lilium columbianum Joseph P. Tracy 1926-7-25 7748 Humboldt Big Lagoon; Northern Coast Region 60 Comment
  SEINET12047013  Lilium columbianum F. H. Utech 1978-1 78 -260 Humboldt ca 2.5 km S of Del Norte/Humboldt County line on US 101 Comment
  HSC57912  Lilium kelleyanum Gilbert Muth 1979-7-31 11521 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  HSC58337  Lilium kelleyanum Overton, Butler 1979-8-2 12646 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1222538  Lilium kelloggii Joseph P. Tracy 1950-6-29 18933 Humboldt 3 mi e Kneeland (on Butler Valley Road) Comment
  UC177231  Lilium occidentale Joseph P. Tracy 1912-6-16 3705 Humboldt near Indianola (on Table Bluff); Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC79327  Lilium pardalinum subsp. pardalinum D. K. Imper 1982-7-15 Humboldt 1/3 mi. E of Grizzly Creek State Park on Hwy. 36, bank of Van Duzen River 1220 Comment
  UC176376  Lilium washingtonianum subsp. purpurascens Joseph P. Tracy 1913-7-20 4366 Humboldt ridge between Redwood Creek and Willow Creek (on Willow Creek road); Northern Coast Ranges 914 Comment
  CHSC19733  Limnanthes douglasii D. E. Anderson 1965-5-8 3634 Humboldt About 4 miles east of Berry Summit, along Hw. 299. Roadside ditch. Comment
  UC1197416  Limnanthes douglasii Joseph P. Tracy 1940-5-5 16542 Humboldt Garberville 152 Comment
  UC249575  Limnanthes douglasii Joseph P. Tracy 1921-4-24 5476 Humboldt Phillipsville Northern Coast Ranges (slopes facing South Fork of Eel River) 121 Comment
  HSC15785  Limnanthes douglasii subsp. nivea Jack Rockwell 1962-5-4 50 Humboldt E of road along stream bank. 488 Comment
  HSC63016  Limnanthes douglasii subsp. nivea David Wheeler 1979-5-23 136 Humboldt About 1/2 mi. towards Bridgeville from the Jct. at High Prairie. Comment
  CDA20098  Limnobium laevigatum E. Finley 2003-3-27 PDR 1035513 Humboldt North Coast Ranges; Alder Grove Marsh, Arcata. 0 Comment
  UC1911670 Image available Limonium californicum Malcolm A. Nobs, S. Galen Smith 1949-8-3 1203 Humboldt ca 2 mi n Eureka (salt marshes bordering Humboldt Bay); Humboldt Bay Comment
  UC146168  Linanthus androsaceus Joseph P. Tracy 1908-6 2746 Humboldt nw slope Buck Mountain; Northern Coast Ranges 457 Comment
  UC1198567  Linanthus bicolor Joseph P. Tracy 1914-5-14 4435 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  JEPS58247  Linanthus bicolor Joseph P. Tracy 1937-5-17 15287 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1198572  Linanthus bicolor Joseph P. Tracy 1906-5-6 2437 Humboldt near Hydesville; Wolverton Gulch 60 Comment
  UC1198546  Linanthus bolanderi Joseph P. Tracy 1908-6 2819 Humboldt nw slope Buck Mountain; Northern Coast Ranges 914 Comment
  JEPS79923  Linanthus ciliatus Joseph P. Tracy 12923 Humboldt s slope Grouse Mountain (towards Grouse Creek Basin); North Coast Ranges 1219 Comment
  SFV18546  Linaria canadensis E. Cohen 2002-4-15 23 Humboldt Eureka. Comment
  RSA0087555  Linnaea borealis subsp. longiflora S. S. Tillett 1956-7-6 614 Humboldt Along Bar Shanty Road, 9 mi. from Orleans. 945 Comment
  UC1239561  Linnaea borealis var. longiflora Joseph P. Tracy 1926-6-6 7579 Humboldt near summit on road w from Hoopa to Bair's Hoopa Mountain; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  HSC39076  Listera caurina J. D. Ackerman 1976-7-3 764 Humboldt 1 mi. E of Blue Lake along old state Hwy. 299. Simpson Demonstration Forest, near hwy. Comment
  UC1196365  Lithocarpus densiflorus Joseph P. Tracy 1948-8-15 18137 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  UC484048  Lithocarpus densiflorus Carl B. Wolf 1930-10-29 Humboldt 4 mi s Honeydew P.O. (Old Coast Route) 304 Comment
  SEINET12034163  Lithocarpus densiflorus K. S. Erdman 1970-1 4793 Humboldt Redwood Natl Park naer Holter Ridge entrance on the Bald Hills road SE of Orick;T10N,R2E,Sec18 Comment
  CAS-BOT-BC36147  Lithocarpus densiflorus var. densiflorus Doris K. Kildale 1926-7-25 2438 Humboldt Briceland Bridge. 1/2 mile west of Gaberville 114 Comment
  UCD115917  Lobularia maritima Joseph P. Tracy 1946-6-2 17556 Humboldt Garden escape, sand dunes, near Samoa, on Humboldt Bay. 6 Comment
  CAS-BOT-BC342348  Logfia gallica Henry M. Pollard 1945-8-26 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  CAS-BOT-BC342349  Logfia gallica Joseph P. Tracy 1935-5-30 13914 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC10311  Lolium perenne C. B. Wolf 1927-8-29 1215 Humboldt Devil's Gate, S of Cape Mendocino. Comment
  HSC74397  Lomatium californicum Gail Newton 1980-6-28 721 Humboldt Near Mad River Butte. 1536 Comment
  HSC21575  Lomatium dasycarpum subsp. dasycarpum Francis Winter 1960-4-24 Humboldt 1 mi. W of Burnt Ranch 381 Comment
  UC1197161  Lomatium dissectum var. dissectum Joseph P. Tracy 1926-5-15 7480 1/2 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC906633  Lomatium dissectum var. dissectum Joseph P. Tracy 1942-6-21 17220 Humboldt at Willow Creek Trinity R. Valley 152 Comment
  SEINET13944712 Image available Lomatium howellii William A. Weber 1965-1 12295 Humboldt hills 5 mi E of Bridgeville; 2100 ft alt 640 Comment
  HSC33054  Lomatium macrocarpum Thomas W. Nelson 1974-5-7 1233 Humboldt Beside airstrip at Kneeland Prairie Comment
  UC1222607  Lomatium macrocarpum Joseph P. Tracy 1951-6-24 19537 Humboldt atop ridge near Ashfield Butte (Kneeland Prairie); Kneeland Prairie 1676 Comment
  HSC96232  Lomatium nudicaule Kaylea Eickhoff, Cara M. Witte 2005-6-3 1 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment
  HSC97454  Lomatium nudicaule Cara Witte 2007-6-7 234 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  HSC46922  Lomatium tracyi Brad Klipfel 1974-5-27 439 Humboldt Horse Mtn. Comment
  UC1197149  Lomatium tracyi Joseph P. Tracy 1933-7-9 12650 Humboldt Brannan Mt. Northern Coast Ranges, Brannan Mt. 1066 Comment
  UC906647  Lomatium triternatum var. triternatum Joseph P. Tracy 1947-7-5 17778 Humboldt ridge top 1 mi. w. Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  UC1186378  Lomatium utriculatum R. Ornduff 1960-6-1 6182 Humboldt ca. 6 mi. e. Garberville (on rd. to Alder Point) Comment
  JEPS13668  Lonicera conjugialis W. L. Jepson July 16 - 23, 1902 2036 Humboldt Trinity Summit 2133 Comment
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Apr 8 2012
  UC1239549  Lonicera conjugialis Joseph P. Tracy 1932-7-11 10413 Humboldt Corral Prairie Trinity Summit 1584 Comment
  POM92405  Lonicera involucrata L. R. Abrams 1922-6-25 8246 Humboldt Near South Bay. Comment
  CAS-BOT-BC241491  Lonicera involucrata var. ledebourii C. Hart Merriam 1922-7-4 s.n. Humboldt Fortuna Comment
  CHSC19479  Lonicera involucrata var. ledebourii Gary J. Stebbins 1970-4-18 66 Humboldt Along road to Samoa 1.0 mile west of Mad River Slough bridge. 6 Comment
  RSA47121  Lonicera involucrata var. ledebourii Doris K. Kildale 1926-4-9 1740 Humboldt Samoa road, sandy peninsula. Comment
  CAS-BOT-BC200913  Lotus Doris Kildale 1931-5-10 10680 Humboldt Snow Camp Comment
  HSC1873  Lotus aboriginus H. E. Parks Jul 1932 Humboldt Bishop Pine Lodge, Trinidad 61 Comment
  UC162846  Lotus aboriginus J. P. Tracy 1905-9-3 2390 Humboldt immedite vicinity Eureka 0 Comment
  UC33554  Lotus aboriginus Chesnut and Drew 1888-7-8 Humboldt Arcata Comment
  UC80965  Lotus formosissimus T. S. Brandegee Jun 1891 Humboldt Eureka Comment
  UC15615  Lotus humistratus Harley P. Chandler Jun 1901 1308 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC302114  Lotus oblongifolius Joseph P. Tracy 1926-6-20 7629 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  JEPS55745  Lotus purshianus var. purshianus Lincoln Constance 1934-5-26 667 Humboldt s end Dyerville Bridge (South Fork Eel River); , Bull Creek Region 45 Comment
  JEPS55780  Lotus purshianus var. purshianus Joseph P. Tracy 1923-6-17 6266 Humboldt Dows Prairie Northern Coast Ranges 60 Comment
  UC303189  Lotus purshianus var. purshianus Joseph P. Tracy 1923-6-17 6266 Humboldt Dows Prairie Northern Coast Ranges 60 Comment
  UC303190  Lotus purshianus var. purshianus Joseph P. Tracy 1923-6-17 6271 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC71612  Lotus unifoliolatus var. unifoliolatus J. P. Smith 1973-5-26 6835 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC495723  Lotus wrangelianus Joseph P. Tracy 1932-5-1 9886 Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  SEINET3523647 Image available Lotus yollabolliensis Joseph P. Tracy 1937-7-29 15586 Humboldt South Fork Mountain, near McKay camp 1676 Comment
  SEINET11810522  Luina hypoleuca J. P. Tracy 1944-1 17489 Humboldt near Romanzoffia Creek, Willow Creek Canyon, along Trinity Highway 366 Comment
  UC503018  Lupinus Joseph P. Tracy 1927-6-18 8189 Humboldt Capetown; Northern Coast Ranges, Capetown 304 Comment
  JEPS109579  Lupinus adsurgens Dean W. Taylor 2002-9-12 18340 Humboldt ca. 0.5 mi N of Lake Prairie 1097 Comment
  HSC31211  Lupinus albicaulis D. E. Anderson 1972-6-20 5736 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  CDA18904  Lupinus albifrons var. collinus P. Haggard, Spadoni 2000-5-31 PDR 1170224 Humboldt North Coast Ranges; Along US Forest Service Hwy 1 in the vicinity of Eureka. 0 Comment
  CDA27368  Lupinus albifrons var. collinus K. Eickhoff, C. M. Witte 2005-6-24 15 Humboldt Approximately 13 miles south of Highway 299 on NF1. Comment
  HSC32313  Lupinus albifrons var. flumineus D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5659 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  UC1223266  Lupinus arboreus Joseph P. Tracy 1947-7-3 17763 Humboldt mouth of Little River Comment
  SEINET10452624  Lupinus arboreus Mary Susan Taylor 1990-8-22 Taylor 6070 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  HSC14788  Lupinus bicolor C. E. Fellows 1965-5-19 87 Humboldt 1.6 mi. S of 7th St. on Hwy. 101 at bridge, E side of Hwy., S side of bridge Comment
  HSC71467  Lupinus bicolor J. P. Smith, J. O. Sawyer 1973-5-12 6680 Humboldt 3.3 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC36191  Lupinus constancei Thomas W. Nelson 1973-7-10 1017 Humboldt Humboldt/Trinity County line, Mt. Lassic (Signal Peak) 1790 Comment
  HSC98986  Lupinus latifolius var. latifolius Cara Witte 2008-7-2 807 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  HSC99592  Lupinus latifolius var. latifolius K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 261 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  UC169060  Lupinus latifolius var. latifolius Joseph P. Tracy 1912-7-3 3719 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  UC1776379  Lupinus latifolius var. latifolius R. Spellenberg 1990-7-9 Humboldt Extreme E edge county, 14 air mi. SW of Burnt Ranch, 14 mi S of Calif Hwy 299 and Berry Summit on USFS Rd. 1, on Pilot Ridge. 1371 Comment
  RSA12559  Lupinus latifolius var. latifolius Carl B. Wolf 1934-7-2 5880 Humboldt Snow Camp. (Mountains east of Korbel). 1372 Comment
  UC503015  Lupinus latifolius var. viridifolius Joseph P. Tracy 1929-7-4 8624 Humboldt French Camp Ridge; Northern Coast Ranges, French Camp Ridge 1066 Comment
  SD42577  Lupinus polyphyllus Carl B. Wolf 1937-6-19 8912 Humboldt Van Duzen River, 0.3 mile above Bridgeville. 121 Comment
  UC502998  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1932-7-14 10558 Humboldt Wet Meadow at Corral Prairie Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC79442  Lupinus rivularis Kenneth Clark 1980-3-27 556 Humboldt On access trail to Dead Man's Gulch, Shelter Cove. 91 Comment
  BLMAR675  Lupinus rivularis Jennifer Wheeler 2013-6-7 675 Humboldt King range, Windy Point 110 Comment
  SD39056  Lupinus tidestromii Edith A. Purer 1932-7-25 4142 Humboldt Near Somoa Comment
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Apr 4 2020
  UC1488739  Lupinus tracyi Marc Baker 1980-7-22 3060 Humboldt Salmon Mountain; Salmon Mt. Quad., near Salmon Mountain 287 Comment
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Jul 7 2009
  HSC89509  Luzula comosa M. Roantree 1985-4-28 19 Humboldt W side of Trinidad Head along trail Comment
  RSA15576  Luzula comosa Carl B. Wolf 1927-8-28 1167 Humboldt 9 miles from Willow Creek, on the grade of the road to Blue Lake. Comment
  RSA368890  Luzula comosa var. laxa Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon, near Orleans. Comment
  HSC14138  Luzula parviflora H. E. Parks, S. T. Parks Jun 1952 22446 Humboldt Bishop Pine Lodge, Trinidad Comment
  UCSB25509  Luzula parviflora Breedlove, Dennis 1962-6-8 Humboldt along U.S. Highway 101; 8 miles north of Orick 60 Comment
  SEINET3151058  Luzula subsessilis D. E. Anderson 1965-5-1 3565 Humboldt along hwy 96, 1.9 mi. N of Willow Creek Comment
  UCD98226  Lychnis coronaria Philip A. Munz 1952-6-27 17799 Humboldt Boise Creek Public Camp west of Willow Creek. 365 Comment
  RSA246934  Lycopodiella inundata R. F. Thorne, Percy C. Everett 1965-8-7 35192 Humboldt Big Lagoon, south end. 2 Comment
  HSC97349  Lycopodium clavatum D. E. Anderson 1965-11-26 4176 Humboldt 2 mi. E. of Moonstone Beach Comment
  JEPS60165  Lycopodium clavatum Hilda W. Grinnell 1932-7-23 46 Humboldt on ever-shaded oozy slope below McKay Camp; South Fork Mountain Comment
  RSA21016  Lysichiton americanus Carl B. Wolf 1937-9-11 9325 Humboldt Redwood Highway, 3 miles N of Orick at Davison s Ranch on Prairie Creek. 61 Comment
  UC1222700  Lysichiton americanus Joseph P. Tracy 1950-4-20 18612 Humboldt along Van Duzen R. 1 mi. w. Dinsmore's; Van Duzen R. Comment
  JEPS45971  Lythrum hyssopifolia W. L. Jepson 1902-8-4 2146 Humboldt near Petrolia ( Expedition from Ukiah to the Hupa Indian Reservation) Comment
  JEPS93178  Lythrum hyssopifolia Margriet Wetherwax and Kevin Downing 1993-8-9 2457 Humboldt just n of Eureka (on e side of Humboldt Bay, s side of Eureka Slough, near Bayside Road and Myrtle, just past Pigeon Point); Humboldt Bay, Eureka Slough 5 Comment
  CAS-BOT-BC342800  Madia elegans Joseph P. Tracy 1934-8-24 13599 Humboldt Trinity River Valley, at Willow Creek 152 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
  RSA167397  Madia elegans subsp. elegans Joseph P. Tracy 1947-7-9 17827 Humboldt Horse Mountain 1067 Comment
  HSC100441  Madia filipes Carl C. Marshall Jun 1887 457 Humboldt Near Harris. Comment
  CAS-BOT-BC343016  Madia gracilis Joseph P. Tracy 1937-7-29 15596 Humboldt South Fork Mountain. West slope near top, at Hyampom Trail 1676 Comment
  CAS-BOT-BC343026  Madia gracilis Doris K. Kildale 1928-6-24 7076 Humboldt Redwood Creek at Berry's 289 Comment
  HSC44541  Madia gracilis Brad Klipfel 1973-7-15 160 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC96938  Madia gracilis Whitney Meier, Elizabeth Kimbrough 2007-6-11 6 Humboldt Cold Springs Camp, 14.1 mi S of Hwy. 299 on NF1 Comment
  UC1199395  Madia gracilis Joseph P. Tracy 1919-7-20 5182 Humboldt Mount Pierce Northern Coast Ranges 914 Comment
  UC495627 Image available Madia gracilis Joseph P. Tracy 1931-6-28 9588 Humboldt lower foothills of northwest slope of Buck Mountain Comment
  UCR123956  Madia madioides George K. Helmkamp, E. A. Helmkamp 2001-7-8 6972 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
  CDA8284  Madia sativa T. C. Fuller 1958-6-17 594 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  CAS-BOT-BC343588  Madia sativa Joseph P. Tracy 1927-6-18 8176 Humboldt Northern Coast Ranges. Cape Mendocino. Southwestern slopes, fronting the ocean, three miles south of point of the cape 30 Comment
  UC1052187  Madia sativa J. L. Meyer 1954-10-11 29 Humboldt 3 mi n Blocksburg; Quadrangle 29A3 457 Comment
  UC13726  Maianthemum dilatatum W. C. Blasdale 1896-5-31 Humboldt Eureka Comment
  HSC15642  Maianthemum racemosum subsp. amplexicaule Paul Shields May 1955 Humboldt 7 mi. W of Hoopa Comment
  HSC74330  Maianthemum racemosum subsp. amplexicaule Gail Newton 1980-6-16 145 Humboldt Near Monks Camp. 1097 Comment
  SEINET3992479  Maianthemum stellatum Unknown 1932-7-12 10455 Humboldt Near Corral Prairie; Trinity Summit 1585 Comment
  UC1223206  Malacothrix clevelandii Joseph P. Tracy 1946-11-17 17667 Humboldt at mouth Van Duzen River; Eel River at mouth of Van Duzen River Comment
  BLMAR684  Marah fabacea Jennifer Wheeler 2013-6-25 684 Humboldt King range, Strawberry Rock 76 Comment
  HSC23743  Marah oregana Tim Baroni 1971-7-6 122 Humboldt About 5 mi. S of Ferndale on the Mattole Rd. Comment
  HSC7033  Marah oregana R. I. Bonn 1965-5-9 48 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  SJSU11758  Marah oregana R. D. Spadoni 1965-3-26 Humboldt Trinidad Comment
  UC1198476  Marah oregana Joseph P. Tracy 1927-6-8 8109 Humboldt Trinidad Northern Coast Ranges 60 Comment
  HSC7030  Marah oregana S. J. Hawks 1965-4-6 17 Humboldt Luffenholtz Beach Comment
  RSA441241  Marah oregana Christopher Davidson 1973-5-29 2206 Humboldt 2 miles S of Carlotta on Hwy 36 61 Comment
  UC175778  Marrubium vulgare Joseph P. Tracy 1912-7-27 3878 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  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
  UC1199282  Matricaria discoidea J. P. Tracy 1900-6-23 856 Humboldt immediate vicinity Eureka 0 Comment
  UC16107  Medicago lupulina Joseph Burtt Davy and Walter C. Blasdale 1899-6-15 5532 Humboldt near Scotia Comment
  HSC14971  Medicago polymorpha R. T. Forester 1963-3-29 50 Humboldt 1/4 mi. N of Fairhaven on Samoa Rd. Comment
  HSC15527  Medicago polymorpha J. Lackey 1971-3-28 10 Humboldt 3 mi. S of Cape Mendocino on Capetown Rd. Comment
  JEPS65525  Medicago sativa Lincoln Constance 1934-6-3 796 Humboldt Dyerville South Fork Eel River, Bull Creek region (foot of bank along n side of Redwood Hwy.) Comment
  UC1103758  Melica fugax Joseph P. Tracy 1936-7-5 15041 Humboldt Grouse Mountain 1524 Comment
  UC188817  Melica harfordii Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 5210 Humboldt Russ Ranch Comment
  UC905595  Melica harfordii David D. Keck 1948-7-2 6012 Humboldt 1 mi n Richardson Grove (U.S. Hwy 101, along South Fork of Eel River) Comment
  UCD87511  Melica harfordii August L. Hormay 1932-5-12 s.n. Humboldt Bull Creek Road. Comment
  HSC75451  Melica subulata J. O. Sawyer 1980-7-18 3588 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC75480  Melica subulata J. O. Sawyer 1980-7-18 3627 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC97958  Melica subulata Cara Witte, Michael Scott 2007-6-22 340 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1/5 mile after intersection with 4N38. 1486 Comment
  UCD88652  Melica subulata A. H. Murphy 1951-5-18 41 Humboldt K. Roscoe Ranch, Upper Mattole. Comment
  UCD88673  Melica subulata R. Tofsrud 1949-7-1 s.n. Humboldt On road from Scotia to Capetown. Comment
  UCSC000054  Melica subulata August L. Hormay 1932-5-11 s.n. Humboldt Korbel Comment
  HSC15015  Melilotus indicus W. F. Nickel 1965-5-16 Humboldt N Arcata in front of the College Cleaners Comment
  JEPS63291  Melissa officinalis Joseph P. Tracy 1925-8-16 7232 Humboldt near the S. Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  HSC14244  Mentha canadensis John Warner Hosking 1968-10-10 Humboldt Clam Beach. Comment
  JEPS63463  Mentha canadensis Milo S. Baker 1923-8-4 178 Humboldt swamp s end Stone Lagoon; swamp s end of Stone Lagoon Comment
  JEPS63479  Mentha canadensis W. L. Jepson 1936-8-7 17936 Humboldt near Arcata (Mad River); Mad River Comment
  HSC37918  Mentha pulegium Peter Sorensen 1976-7-15 Humboldt Humboldt Bay, Woodley Island Comment
  HSC49016  Mentha pulegium Patricia Shesgreen 1978-8-2 127 Humboldt Along rd. at 11th and B St. Arcata Comment
  RSA424585  Mentha pulegium T. S. Elias, Barbara A. Elias 1987-8-26 10627 Humboldt Fernbridge, 0.5 mile S of Route 101; along West bank of Eel River, about 0.5 mile N of bridge Comment
  SEINET200815  Mentzelia dispersa Joseph P. Tracy 1908-7-30 2843 Humboldt Northwest slope of Buck Mountain 1219 Comment
  HSC32553  Mentzelia dispersa Thomas W. Nelson 1973-7-10 1033 Humboldt Humboldt-Trinity Co. line, Mt. Lassic (Signal Pk.) 1790 Comment
  RSA46478  Menziesia ferruginea Doris K. Kildale 1927-6-26 3596 Humboldt Redwoods between Big Lagoon and Trinidad. Comment
  CHSC35518  Micropus californicus var. californicus Thomas Nelson; James Nelson 1976-5-30 2621 Humboldt McKeown Ranch north of Dinsmore. Comment
  HSC38098  Micropus californicus var. californicus Thomas W. Nelson, James Nelson 1976-5-30 2621 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC427865  Micropus californicus var. californicus H. E. Parks 1930-5-25 872 Humboldt ridges above Laribee Valley Comment
  UC180185  Microseris borealis Joseph P. Tracy 1914-7-4 4541 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  CAS-BOT-BC348834  Microseris douglasii subsp. douglasii K. L. Chambers 1969-5-25 2923 Humboldt On road to Harris 5.2 mi. E of the freeway overpass at Garberville Comment
  CAS-BOT-BC322679  Microseris laciniata Doris K. Kildale 1926-6-27 2186 Humboldt McClellan Mountain 822 Comment
  CAS-BOT-BC322678  Microseris laciniata Doris K. Kildale 1927-7-17 3750 Humboldt Big Creek 792 Comment
  RSA0106589  Microseris laciniata Joseph P. Tracy 1947-6-8 17706 Humboldt Carlotta; open flat by old Strong's District School House, 5 miles east of town. 61 Comment
  UC166792  Microseris laciniata subsp. laciniata Joseph P. Tracy 1909-7-31 3028 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1223196  Microseris laciniata subsp. laciniata Joseph P. Tracy 1942-6-15 17169 Humboldt five mi n Garberville (along Eel River from South Fork Eel River to Scotia); Northern Coast Ranges, along Eel River from South Fork 60 Comment
  UC582737  Microseris laciniata subsp. laciniata Joseph P. Tracy 1936-6-17 14942 Humboldt Bridgeville 198 Comment
  HSC6101  Microseris nutans W. K. Parks 1933-7-15 5263 Humboldt South Fork Mtn. 1677 Comment
  RSA167416  Microsteris gracilis subsp. gracilis Joseph P. Tracy 1950-5-7 18648 Humboldt Valley of South Yager Creek 762 Comment
  UC147924  Mimulus arvensis Joseph P. Tracy 1909-6-20 3000 Humboldt Freshwater Creek Northern Coast Region, Humboldt Bay region 0 Comment
  UC582707  Mimulus arvensis Joseph P. Tracy 1936-5-2 7435 Humboldt near South Fork; Trinity River Valley 182 Comment
  HSC20687  Mimulus aurantiacus var. aurantiacus R. Spellenberg 1965-6-14 1136 Humboldt Hwy. 299, 1 mi. E of Blue Lake Comment
  JEPS10553  Mimulus breweri Joseph P. Tracy 1932-7-10 10375 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC582603  Mimulus breweri Joseph P. Tracy Jul 16 1930-Jul 19 1930 8975 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC1196775  Mimulus cardinalis Joseph P. Tracy 1908-6 2928 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1196769  Mimulus floribundus Joseph P. Tracy 1923-9-16 6557 Humboldt at mouth South Fork; Trinity River Valley 182 Comment
  HSC22805  Mimulus guttatus D. E. Anderson, J. P. Smith 1970-5-10 5062 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  HSC20749  Mimulus guttatus T. M. Mingo May 1965 Humboldt About 100 ft. N of the intersection of Fairhaven Dr. and old Hwy. 101 Comment
  UC673101  Mimulus guttatus Joseph P. Tracy with Dr. F. W. Pennell 1940-7-7 16661 Humboldt head Willow Creek; Trinity Highway 762 Comment
  UC1063548  Mimulus inodorus H. L. Person 1932-8-1 Humboldt Korbel Eureka Quadrangle Comment
  JEPS27379  Mimulus inodorus H. W. Grinnell 1932-7-22 Humboldt near Blake Lookout (s of USGS Signal Rock); South Fork Mountain Comment
  UC103776  Mimulus kelloggii Harley P. Chandler June 1901 1480 Humboldt Klamath River North Coast Ranges 426 Comment
  UC41884  Mimulus kelloggii Chesnut and Drew July 1888 Humboldt Pilot Ridge Comment
  HSC104076  Mimulus layneae S. Carothers 2002-6-11 Humboldt Six Rivers National Forest; along Ruth Lake Rd., between Ruth and bridge crossing to Shannon Butte 841 Comment
  HSC76046  Mimulus moschatus Overton, Butler 1979-8-2 12559 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC76220  Mimulus moschatus Overton, Butler 1979-7-24 9768 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC44508  Mimulus primuloides var. primuloides Brad Klipfel 1973-7-1 119 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC55325  Mimulus primuloides var. primuloides Griswold, Butler 1979-7-12 7155 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC82387  Mimulus primuloides var. primuloides Thomas W. Nelson 1979-7-11 5011 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  JEPS80914  Mimulus pulsiferae Joseph P. Tracy 1933-7-25 12838 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
Read comments
Sep 10 2013
  SEINET6904195  Minuartia californica Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  UC1198336  Minuartia californica Joseph P. Tracy 1927-3-27 7859 Humboldt near the South Fork; Trinity River Valley 182 Comment
  UC427871  Minuartia cismontana H. E. Parks and J. P. Tracy 1930-5-25 866 Humboldt Laribee Valley Comment
  CAS-BOT-BC174682  Minuartia cismontana H. E. Parks; J. P. Tracy 1930-5-25 0866 Humboldt Laribee Valley, Eastern Humboldt Co. Comment
  CAS-BOT-BC388624  Minuartia douglasii Doris K. Kildale 1928-5-27 5954 Humboldt Kneeland Prairie 853 Comment
  HSC38489  Mitella caulescens D. E. Anderson, J. P. Smith 1971-6-18 - 1098 Humboldt In narrow canyon of the N Fork of Mad River, along Hwy. 299, E of Blue Lake Comment
  CAS-BOT-BC433029  Mitella ovalis Doris K. Kildale 1927-6-25 3577 Humboldt Fearren's Ranch between Thorn & Shelter Cove Comment
  UC303176  Mitella ovalis Joseph P. Tracy 1923-4-8 6176 Humboldt Carlotta Northern Coast Ranges 60 Comment
  HSC102181  Mitella trifida M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1095 Humboldt Patterson Meadows 1566 Comment
  HSC73710  Moehringia macrophylla M. A. Baker 1980-7-15 2979 Humboldt Near Whiting Ridge 301 Comment
  UC161044  Moehringia macrophylla Joseph P. Tracy 1908-6-8 2631 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC435065  Mollugo verticillata Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  CAS-BOT-BC215570  Monardella odoratissima subsp. pallida Carl B. Wolf 1937-8-13 9269 Humboldt 12 mi. E. of Hoopa Valley on new road towards Trinity Summit, North Coast Range 1676 Comment
  UC2035920  Monardella odoratissima subsp. pallida Joseph P. Tracy Jul 16 1930-Jul 19 1930 8911 Humboldt South Fork Mountain near McKay Camp; Northern Coast Ranges 1676 Comment
  POM283164  Monardella villosa Lyman Benson 1928-7-12 476 Humboldt Weott Ranger Station. 61 Comment
  UC718021  Monardella villosa subsp. villosa Carl B. Wolf 1934-7-3 5923 Humboldt Weitchpec junction of Klamath & Trinity Rivers, 200 yards west of School. 304 Comment
  UC203967  Monardella villosa subsp. villosa Joseph P. Tracy 1918-7-2 4984 Humboldt Mattole Valley, mouth of Honey Dew Creek; Northern Coast Ranges 152 Comment
  RSA257008  Moneses uniflora Gary D. Wallace, S. Carlquist, G. Ansley Wallace 1972-6-30 1103 Humboldt Prairie Creek Redwoods St. Pk. near park Hq. Comment
  RSA249710  Monotropa hypopitys R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-5 35132 a Humboldt Wailaki Recreation Site. 610 Comment
  UC34369  Monotropa hypopitys Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  HSC102006  Montia chamissoi M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 907 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  UC673011  Montia diffusa Joseph P. Tracy 1930-8-24 9165 Humboldt Kneeland Prairie 762 Comment
  JEPS30736  Montia diffusa L. Constance and Alan A. Beetle with J. P. Tracy 1940-5-17 2615 Humboldt 1 mi below Dinsmore's (above Van Duzen River) 762 Comment
  UC161062  Montia diffusa Joseph P. Tracy 1906-6-10 2487 Humboldt Kneeland Prairie, near Haughey's Mill Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 609 Comment
  HSC99495  Montia fontana K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 155 Humboldt Near North Trinity Mtn, Government Trail, near Box Camp, Six Rivers National Forest. 1460 Comment
  HSC93840  Montia howellii Claire Golec, Shawn Magnuson 1999-5-12 Humboldt Pacific Lumber Co. land, W side of Van Duzen River, 10 mi. W of Bridgeville Comment
  UC275281  Montia howellii Joseph P. Tracy 1923-6-20 6307 Humboldt White Thorn Valley; Northern Coast Ranges, White Thorn Valley 304 Comment
  RSA739606  Montia parvifolia John Dittes, Josephine Guardino 2003-6-7 2003 -64 Humboldt Outer N coast Range, 2.9 air mile NW of Legget, 5.2 air mile SE of Piercy, shaded rocks on eastern bank of S Fork Eel River. 183 Comment
  HSC37958  Morella californica Peter Sorensen 1976-6-12 Humboldt Woodley Island, Humboldt Bay Comment
  HSC38339  Morella californica Peter Sorensen 1976-6-14 Humboldt N Spit of Humboldt Bay, S of Samoa Comment
  UCD110276  Morella californica Linda M. Barker 1976-6-1 1542 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC260574  Muhlenbergia filiformis Joseph P. Tracy 1932-7-14 10544 Humboldt Klamath Mountains. At Corral Prairie 1524 Comment
  UC1103784  Muhlenbergia filiformis Joseph P. Tracy 1931-9-7 9656 Humboldt on sand bar along river Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UCD86610  Muhlenbergia filiformis Don Hagar 1957-8-6 s.n. Humboldt Jackson Hole, west of the Trinity Summit area. 1645 Comment
  JEPS70788  Myosotis discolor Joseph P. Tracy 1936-5-17 14809 Humboldt Lawrence Creek at crossing of Kneeland Rd.; Lawrence Creek 457 Comment
  UC1239641  Myosotis discolor Joseph P. Tracy 1920-6-6 5337 Humboldt along Freshwater Creek near Wrangletown; Northern Coast Ranges 30 Comment
  HSC45080  Myosotis discolor R. Sutherland 1978-5-12 11 .12578 Humboldt 282 Comment
  HSC77872  Myriophyllum sibiricum Andy Gordus 1978-1 Humboldt N side of Hwy. 299, near Essex Rd. Comment
  HSC32096  Navarretia intertexta D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5704 Humboldt McKeown Ranch, N of Dinsmore Comment
  RSA89564  Navarretia intertexta P. A. Munz 1954-7-23 19863 Humboldt 1 mile west of Bridgeville Comment
  SEINET196701  Navarretia leucocephala Joseph P. Tracy 1928-6-24 8476 Humboldt East Ranch, between Middle and North Yager Creeks. 762 Comment
  JEPS70390  Navarretia mellita Joseph P. Tracy 1934-7-9 13333 Humboldt 5 mi s Harris 762 Comment
  SEINET200382  Navarretia squarrosa J. P. Tracy 1904-7-31 2135 Humboldt Immediate vicinity of Eureka. 0 Comment
  UC146171  Navarretia squarrosa J. P. Tracy 1904-7-31 2135 Humboldt immediate vicinity Eureka 0 Comment
  UC908184  Navarretia viscidula Joseph P. Tracy 1927-7-24 8294 Humboldt Upper Mattole 152 Comment
  SEINET10873102  Nemacladus capillaris Tracy 1908-6-27 TRACY 2842 Humboldt Northwest slope of Buck Mountain 1219 Comment
  UC169028  Nemacladus capillaris Joseph P. Tracy Jul 21 1905-Aug 16 1905 2296 Humboldt Elk Mountain; Northern Coast Ranges 1219 Comment
  UC1116246  Nemophila menziesii Joseph P. Tracy 1948-5-31 17996 Humboldt Harris 609 Comment
  SEINET5521025  Nemophila menziesii var. atomaria J. P. Tracy 1906-5-6 2445 Humboldt Near Hydesville 60 Comment
  HSC73127  Nemophila parviflora M. A. Baker 1980-5-18 1284 Humboldt Near Black Mtn. 1006 Comment
  OBI36374  Notholithocarpus densiflorus var. densiflorus David J. Keil 1983-7-1 17266 Humboldt Ca. 8 mi W of jctn US 101 along Bull Creek Flats rd Comment
  RSA0013606  Nuphar lutea subsp. polysepala C. B. Wolf 1937-9-14 9353 Humboldt Town of Blue Lake. 15 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
  HSC62976  Nuphar polysepala David Wheeler 1979-5-18 117 Humboldt Fieldbrook Elementary School, behind the baseball field Comment
  HSC26343  Oemleria cerasiformis Thomas W. Nelson 1971-4-4 371 Humboldt Beside Hwy. 36 at Dinsmore Comment
  HSC37831  Oemleria cerasiformis Thomas W. Nelson, Jane P. Nelson 1976-2-21 2248 Humboldt Tish-Tang campground Comment
  HSC38297  Oemleria cerasiformis Thomas W. Nelson 1976-3-22 2276 Humboldt Beside Eureka Muni. Golf Course Comment
  UC1198783  Oemleria cerasiformis Joseph P. Tracy 1920-2-29 5310 Humboldt Eureka Northern Coast Ranges (at Stephen Hill place) 60 Comment
  UC1198785  Oemleria cerasiformis Joseph P. Tracy 1923-4-1 6172 Humboldt Blue Lake; Northern Coast Ranges 60 Comment
  POM224766  Oenothera glazioviana P. A. Munz 1936-8-13 14384 Humboldt 7 miles east of Arcata. Comment
  HSC99007  Orobanche fasciculata var. franciscana Cara Witte 2008-7-14 894 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. 1380 Comment
  HSC104436  Orthilia secunda Bianca Hayashi 2013-6-18 Humboldt Northwest of Snow Camp Mountain Comment
  RSA183530  Orthocarpus erianthus R. J. Vernimen 1963-5-11 54 Humboldt 0.5 mile off the Samoa road behind the Georgia-Pacific dump, 7.5 miles SW of Arcata. Comment
  HSC56205  Orthocarpus imbricatus G. L. Clifton, Terry Griswold 1979-8-2 12197 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  SEINET8733553 Image available Orthocarpus pusillus C. C. Harris, S. K. Harris 1942-1 1283 Humboldt 1 mile north and 3 miles west of Chalk Mountain Comment
  HSC56304  Osmorhiza berteroi Overton, Butler 1979-8-2 12611 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC76401  Osmorhiza berteroi Denis Kearns 1981-7-23 388 Humboldt Near Whiteys Peak 732 Comment
  HSC81604  Osmorhiza berteroi Thomas W. Nelson, Jane P. Nelson 1980-5-25 5249 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  HSC21584  Osmorhiza berteroi D. E. Anderson 1961-8-11 1724 Humboldt E of Humboldt State College campus. 30 Comment
  BLMAR235  Oxalis Jennifer Anthony-Wheeler 1996-9-26 235 Humboldt King range, growing creekside of bear creek btween campgrounds 548 Comment
  UC902196  Oxalis albicans subsp. pilosa Joseph P. Tracy 1942-5-16 17336 Humboldt Garberville 152 Comment
  HSC12755  Oxalis corniculata M. J. Athey 1970-11-22 23 Humboldt In Arcata along G street in front of P G & E Comment
  HSC27893  Oxalis oregana Clifton Raymond Chesbrough 1973-6-19 65 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  UC1197421  Oxalis oregana Joseph P. Tracy 1901-6-10 1136 Humboldt Eureka Northern Coast Ranges 0 Comment
  HSC59584  Oxalis oregana Rick Lundquist 1979-4-24 36 Humboldt Arcata, lower Church parking lot at E end of 16th St. 46 Comment
  JEPS43139  Oxalis oregana W. L. Jepson 1932-7-28 16432 Humboldt Bull Creek Flat Comment
  RSA189638  Oxalis oregana Noel Holmgren, James L. Reveal 1966-6-8 2658 Humboldt Coast Range, east of Arcata, 1.5 miles south of Korbel. 274 Comment
  SD53235  Oxalis oregana Darley F. Howe 1962-5-22 3309 Humboldt 3.0 miles east of Orick n Bald Mountain road. 395 Comment
  UC187239  Panicum acuminatum var. acuminatum Joseph P. Tracy 1900-8-26 925 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  UC526842  Panicum oligosanthes var. scribnerianum Joseph P. Tracy 1927-8-7 8314 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  CHSC20872  Parentucellia viscosa Robert A. Schlising 1963-6-3 2582 Humboldt 2 miles north 0f Fortuna. Comment
  UC1222793  Parentucellia viscosa Joseph P. Tracy 1950-6-8 18759 Humboldt leading from the coast toward Petrolia; Domingo Hill Comment
  HSC27047  Parentucellia viscosa Brad Klipfel 1973-8-25 290 Humboldt Near Lazy L Ranch, Fickle Hill Rd. Comment
  HSC37801  Paspalum dilatatum J. P. Smith 1976-8-22 8962 Humboldt Hwy. 101 just S of exit to Murray field. Comment
  UC1103769  Paspalum dilatatum Fred M. Kay 1929-10-1 Humboldt near Blocksburg 457 Comment
  HSC98075  Paxistima myrsinites Cara Witte 2007-7-12 525 Humboldt Forest Service Road 5N10C. Approximately 1 mile south for intersection with Ammon Ridge Road. 1252 Comment
  RSA183642  Paxistima myrsinites D. E. Anderson 1965-6-1 3776 Humboldt Along Friday Ridge Road. 1067 Comment
  UC1222231  Pectocarya pusilla Joseph P. Tracy 1948-5-31 18003 Humboldt ca 1/2 mi w Harris (up hill toward Spruce Grove) 762 Comment
  JEPS3357  Pedicularis racemosa Joseph P. Tracy 1930-7-16 8917 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  RSA187565  Pellaea andromedifolia S. K. Harris 1960-7-11 21651 Humboldt 3.8 miles west of Redway Comment
  CAS-BOT-BC69341  Pellaea brachyptera Joseph P. Tracy 1939-8-16 16423 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC69342  Pellaea brachyptera L. B. Kildale 1930-8-3 10346 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  HSC54218  Pellaea brachyptera Griswold, Butler 1979-7-12 7282 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  CHSC35535  Pellaea mucronata Thomas Nelson; James Nelson 1976-5-30 2612 Humboldt McKeown Ranch north of Dinsmore. Comment
  RSA293127  Pellaea mucronata Thomas W. Nelson, James Nelson 1976-5-30 2612 Humboldt McKeown Ranch north of Dinsmore. Comment
  CAS-BOT-BC67623  Pellaea mucronata Donald Branscomb 1959-4-1 s.n. Humboldt Bear Butte, near Garberville. 853 Comment
  RSA425609  Penstemon anguineus H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1372 Comment
  UC354474  Penstemon azureus var. angustissimus P. E. Goddard 1906-6 666 Humboldt Lasseck Pk. Comment
  HSC102599  Penstemon deustus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1586 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  UC1222462  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1948-6-13 18052 Humboldt near Harris; near Harris 609 Comment
  UC673099  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1940-5-5 16543 Humboldt Garberville Garberville (on river bar) 152 Comment
  HSC98095  Penstemon laetus subsp. sagittatus Cara Witte 2007-7-3 417 Humboldt Along National Forest 1. 1/4 mile north of Road V. 1268 Comment
  UC1222426  Penstemon laetus var. sagittatus Joseph P. Tracy 1926-6-20 7645 Humboldt Horse Mountain 1432 Comment
  HSC76259  Penstemon parvulus Denis Kearns 1981-6-24 31 Humboldt Near Cedar Camp 1219 Comment
  CDA41849  Penstemon parvulus Peter Haggard 1993-7-22 PDR# 1061613 Humboldt Bair Road southwest of Hoopa. 0 Comment
  JEPS7918  Penstemon rattanii Joseph P. Tracy 1921-6-12 5822 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC577415  Penstemon rattanii Joseph P. Tracy 1930-8-24 9166 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC165061  Pentachaeta alsinoides Joseph P. Tracy 1903-5-23 1890 Humboldt dry hillside at Alder Point; Eel River 243 Comment
  HSC33659  Pentagramma triangularis M. Wetherwax 1975-6-1 174 Humboldt Along Butler Valley Rd. 0.5 mi. past the bridge over the Mad River Comment
  UC162775  Pentagramma triangularis subsp. triangularis Joseph P. Tracy 1911-7-5 3315 Humboldt Willow Creek near its mouth Willow Creek; Northern Coast Ranges, tributary of Trinity River 243 Comment
  UC314589  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1923-10-28 6588 Humboldt Bald Mt. Northern Coast Ranges 762 Comment
  JEPS14224  Perideridia howellii Joseph P. Tracy 1930-10-26 9237 Humboldt Valley of South Yager Creek 762 Comment
  HSC56076  Perideridia kelloggii G. L. Clifton, Terry Griswold 1979-7-31 11752 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC55993  Perideridia parishii subsp. latifolia Overton, Butler 1979-7-31 11423 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC26590  Petrorhagia dubia D. E. Anderson 1973-4-20 Humboldt Flood plain of Eel River 5 mi. E of Founders Tree area, Avenue of the Giants Comment
  HSC13624  Phacelia bolanderi J. E. Lankila 1962-5-6 19 Humboldt West bank of Eel River across form Shively Comment
  CHSC32894  Phacelia californica James P. Smith 1973-5-26 6871 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC24323  Phacelia ciliata var. ciliata J. P. Tracy 1899-4-4 Humboldt Eureka Comment
  RSA275310  Phacelia corymbosa Thomas W. Nelson, Jane P. Nelson 1977-7-4 3576 Humboldt At head of North Fork of Conley creek. 1463 Comment
  HSC30744  Phacelia heterophylla subsp. virgata D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5620 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC57422  Phacelia mutabilis G. L. Clifton, Griswold 1979-7-26 10193 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  UC1222900  Phacelia mutabilis Joseph P. Tracy 1950-6-15 18778 Humboldt 5 mi n Harris; Mail Ridge Comment
  JEPS1133  Phacelia nemoralis subsp. oregonensis W. L. Jepson 1902-6-20 1896 Humboldt = Mail Ridge Fort Seward Ranch Ridge 396 Comment
  HSC10551  Phalaris arundinacea W. F. Cartwright 1965-5-20 75 Humboldt 5 mi. S of Arcata on Old Arcata Road Comment
  HSC55709  Philadelphus californicus Overton, Butler 1979-7-26 10098 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  CAS-BOT-BC76563  Philadelphus lewisii Harley P. Chandler 1901-6-1 1333 Humboldt Hupa Indian Reservation 152 Comment
  CAS-BOT-BC76565  Philadelphus lewisii Doris K. Kildale 1927-7-3 3634 Humboldt Willow Creek Flat 152 Comment
  HSC48327  Philadelphus lewisii Maralyn O'Meara 1974-5-18 500 Humboldt Fisher Rd. near Carlotta Comment
  UC1222381  Philadelphus lewisii Joseph P. Tracy 1950-6-18 18853 Humboldt 2 mi w Briceland; Redwood Creek Comment
  UC161560  Philadelphus lewisii Joseph P. Tracy 1911-7-5 3318 Humboldt Willow Creek Northern Coast Ranges (near its mouth, creek is a tributary of Trinity River) 304 Comment
  HSC58543  Phleum alpinum Overton, Butler 1979-7-23 9546 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC58687  Phleum alpinum G. L. Clifton, Griswold 1979-8-2 12405 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  POM126105  Phleum alpinum Joseph P. Tracy 1906-7-1 2514 Humboldt At Eureka 0 Comment
  UC181260  Phleum alpinum Joseph P. Tracy 1913-7-20 4376 1/2 Humboldt ridge between Redwood Creek and Three Creeks (on Berry's ranch); Northern Coast Ranges, btw Redwood Creek and Three Creeks 914 Comment
  HSC58537  Phleum pratense Overton, Butler 1979-7-23 9461 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  HSC17182  Phlox adsurgens D. E. Anderson 1965-5-15 3693 Humboldt About 7 mi. N of Hoopa on Bloody Camp Prairie Rd. Comment
  HSC55333  Phlox adsurgens Griswold, Butler 1979-7-12 7177 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC905634  Phlox adsurgens David D. Keck 1948-7-2 6003 Humboldt 0.25 mi w boundary of Six Rivers National Forest (8.6 mi w of Willow Creek, e of Berry's summit, e side of Rocky Ridge); Rocky Ridge 762 Comment
  SEINET10496854  Phlox diffusa Jones 1985-5-5 Jones 27 Humboldt T34n,r4e,sec.14, titlow road. Ca 8 miles s off hwy 299 going to horse mt. Found At intersection of titlow rd. And the raod to horse mt. Summit. Pinus, arbutus, Quercus chrysolepis, quercus vaccinifolia habitat 1143 Comment
  JEPS71116  Phlox gracilis Joseph P. Tracy 1930-6-21 8791 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  UC908462  Phlox gracilis Joseph P. Tracy 1930-6-21 8791 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  UC672849  Phoradendron juniperinum Joseph P. Tracy 1932-7-16 16048 Humboldt Trinity Summit, Corral Prairie 1584 Comment
  HSC83091  Phyllospadix torreyi Geo. W. Burtchett 1965-7-29 Humboldt Palmer's Point 0 Comment
  CAS-BOT-BC140584  Physocarpus capitatus Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC31639  Physocarpus capitatus Glenn McGourty 1974-6-1 83 Humboldt Comment
  CAS-BOT-BC73440  Picea sitchensis Edward Lee 1934-8-17 1154 Humboldt Near east shore of Big Lagoon, 35 miles north of Euraka. Comment
  POM21764  Picea sitchensis L. R. Abrams 1916-7-18 6131 Humboldt Arcata to Trinidad. Comment
  UCSB24019  Picea sitchensis Keefe, Joseph 1967-7-8 Humboldt South edge of Big Lagoon, 20 miles north of Eureka 1 Comment
  SEINET5334460  Picea sitchensis W. D. Billings 1940-6-28 1355 Humboldt 1/4 mile north of Trinidad Head Comment
  UCR48862  Picris echioides R. D. Goeden, Don W. Ricker 1987-9-2 870902- 6 Humboldt Hwy 36 at Chantham Grove (just west of Grizzly Creek Redwoods State Park.) 91 Comment
  CAS-BOT-BC78288  Pinus attenuata A. A. Heller 1917-7-7 12811 Humboldt Alder Springs grade below Rattlesnake [spring] Spring Comment
  HSC98703  Pinus attenuata Cara Witte 2007-9-3 640 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36. 1448 Comment
  UCR36307  Pinus contorta R. M. Adams 1982-3-8 65-334 188 Humboldt along road edge near Agate Beach Campground, Patrick's Point State Park, 30 miles north of Eureka 46 Comment
  POM282097  Pinus contorta var. contorta H. E. Parks 1931-05 s.n. Humboldt Samoa, Pine Barrens. Comment
  HSC54525  Pinus monticola Overton, Butler 1979-7-23 9459 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  RSA46498  Pinus monticola Doris K. Kildale 1927-3-27 2998 Humboldt 1 mile north of Trinidad. Comment
  HSC1529  Pinus muricata R. A. Magie 1964-5-3 46 Humboldt 2 mi. N of Trinidad on old Hwy. to Crescent City. Comment
  UC55659  Pinus ponderosa P. E. Goddard 1901-7-12 66 Humboldt Hupa Comment
  HSC1574  Pinus radiata R. A. Magie 1964-5-3 45 Humboldt 2 mi. N of Trinidad on old Hwy. to Crescent City. Comment
  UC1326262  Piperia elongata Milo S. Baker 1947-8-11 11946 Humboldt perhaps 10 mi e Willow (Arcata-Weaverville Hwy) Comment
  HSC45213  Pityopus californicus R. York 1978-7-15 Humboldt Road to Brush Mt., China Timber Sale. Bulk Collection 139 1067 Comment
  HSC48732  Pityopus californicus J. Pageau, T. Jimerson, E. Toth 1979-6-13 520 Humboldt Timber sale unit 7. Bulk Collection 182 549 Comment
  UC1121030  Pityopus californicus R. Stahelin 1933-7-20 Humboldt Korbel Eureka Quad. (yield Plot #16, se of Riverside Plant) Comment
  HSC100409  Plagiobothrys Carl C. Marshall May 1887 424 Humboldt Spruce Grove. Comment
  HSC41226  Plagiobothrys cognatus Thomas W. Nelson, Jane P. Nelson 1977-6-14 3496 Humboldt Above Alder Springs 1585 Comment
  UC526810  Plagiobothrys nothofulvus Joseph P. Tracy 1932-5-1 9861 Humboldt near Garberville; North Coast Ranges, Redway 182 Comment
  UC1239609  Plagiobothrys reticulatus Joseph P. Tracy 1936-6-9 14884 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  UC180174 Image available Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1914-5-14 4469 Humboldt Fort Seward Northern Coast Ranges; Fort Seward, Humboldt Co. 121 Comment
  UCD120950  Plagiobothrys scouleri Joseph P. Tracy 1949-6-25 18353 Humboldt Trinity Summit, meadow at Box Camp. 1463 Comment
  RSA21081  Plagiobothrys stipitatus var. micranthus C. B. Wolf 1937-6-19 8909 Humboldt Van Duzen River, 0.3 mi. above Bridgeville. 122 Comment
  UC1180486  Plagiobothrys tenellus Robert Ornduff 1960-6-1 6179 Humboldt meadow on high ridge about 3 mi e Garberville (on road to Alder Point) Comment
  SEINET8665540  Plantago australis subsp. hirtella J. P. Tracy 1906-6-17 2493 Humboldt Immediate vicinity of Eureka Comment
  UC585994  Plantago elongata Joseph P. Tracy 1927-6-26 8218 Humboldt Stone Lagoon 6 Comment
  HSC40868  Plantago erecta Linda M. Barker 1976-4-30 1397 Humboldt 3 mi. W of Arcata Comment
  UC585985  Plantago erecta Joseph P. Tracy 1932-5-10 9945 Humboldt near Petrolia; Northern Coast Ranges, Mattole Valley 60 Comment
  HSC26370  Plantago lanceolata T. O. Osborne 1970-9-16 64 Humboldt Trinidad Bay, Prisoner Rock Comment
  HSC67527  Plantago maritima J. P. Smith 1970-6-7 3813 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. 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
  RSA54131  Plantago patagonica H. M. Pollard 1945-8-25 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon. Comment
  HSC54017  Platanthera dilatata var. leucostachys Griswold, Butler 1979-7-12 7161 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1409180  Platanthera leucostachys Robert F. Thorne and P. Everett 1965-8-7 35172 Humboldt s end Big Lagoon 1 Comment
  UC176370  Platanthera leucostachys Joseph P. Tracy 1912-7-31 3901 Humboldt nw slope Buck Mountain (Burr Valley); Northern Coast Ranges, nw slope Buck Mountain 1066 Comment
  UC666987  Platanthera sparsiflora Joseph P. Tracy 1932-7-17 10673 Humboldt ridges e Corral Prairie; Trinity Summit 1828 Comment
  JEPS51579  Platystemon californicus W. L. Jepson 1902-6-20 1902 Humboldt Ft. Seward Ranch Ridge 1219 Comment
  UC176997  Plectritis brachystemon Joseph P. Tracy 1912-6-9 3656 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  CHSC77469  Plectritis ciliosa subsp. insignis Vernon H. Oswald 2000-4-3 9913 Humboldt Samoa Road at the County Boat Ramp on the North Spit of Humboldt Bay. 4 Comment
  HSC63844  Pleuricospora fimbriolata M. A. Baker 1979-6-29 953 Humboldt 900 Comment
  UC1145105  Pleuropogon refractus Joseph P. Tracy 1947-7-5 17812 Humboldt near Box Camp (Trinity Summit); Trinity Summit 1524 Comment
  UCD90106  Pleuropogon refractus R. Tofsrud 1949-7-22 s.n. Humboldt on road between Scotia and Capetown. Comment
  RSA10113  Poa Joseph P. Tracy 1930-7-19 9053 Humboldt South Fork Mountain; along summit near Blake lookout. 1738 Comment
  RSA246887  Poa annua R. F. Thorne, P. Everett 1965-8-8 35255 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  RSA44528  Poa bulbosa Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River, Orleans Comment
  CAS-BOT-BC255118  Poa confinis Joseph P. Tracy 1927-6-26 8209 Humboldt Stone Lagoon 6 Comment
  CAS-BOT-BC255119  Poa confinis Joseph P. Tracy 1927-4-24 7947 Humboldt Eureka, near bay shore 9 Comment
  HSC10677  Poa confinis J. W. Johnson 1962-4-14 1250 Humboldt Arcata, Christenson Farm, Samoa Peninsula. Comment
  POM126516  Poa confinis Joseph P. Tracy 1922-5-28 6056 Humboldt Little River Beach 6 Comment
  UC573883  Poa douglasii H. S. Yates 1936-6-16 5650 Humboldt 1/2 mi sw Samoa; Eureka Quadrangle 6 Comment
  CAS-BOT-BC246619  Poa howellii Joseph P. Tracy 1926-5-15 7490 Humboldt Kneeland Prairie 762 Comment
  UC34125  Poa howellii Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5516 Humboldt near Pepperwood Pepperwood Comment
  CAS-BOT-BC254282  Poa macrantha S. K. Harris 1936-6-15 3383 Humboldt Trinidad Head Comment
  RSA10134  Poa macrantha Joseph P. Tracy 1933-5-20 12224 Humboldt Cape Mendocino, near ocean shore, south point of the Cape. 3 Comment
  RSA28797  Poa macrantha H. E. Parks 1934-05 4805 Humboldt Little River lagoon Comment
  UCD91545  Poa macrantha Freed W. Hoffman 1946-5-21 1719 Humboldt near Eel River. Comment
  RSA44525  Poa pratensis Henry M. Pollard 1948-7-17 s.n. Humboldt Orleans. Comment
  HSC10379  Poa pringlei D. E. Anderson 1965-6-1 3765 Humboldt Horse Mountain. 1220 Comment
  CAS-BOT-BC235981  Poa secunda subsp. secunda A. G. Vestal 1937-6-23 s.n. Humboldt Kneeland Prairie Comment
  HSC40518  Poa secunda subsp. secunda Thomas W. Nelson, Jane P. Nelson 1976-6-16 2743 Humboldt Just W of Alder Springs. 1524 Comment
  UC1145121  Poa secunda subsp. secunda Joseph P. Tracy 1936-7-5 15042 Humboldt summit Grouse Mt 1642 Comment
  UC525661  Poa secunda subsp. secunda Joseph P. Tracy 1932-7-17 10693 1/2 Humboldt head of Devil's Hole Trinity Summit; Klamath Mts 1828 Comment
  UCD91732  Poa secunda subsp. secunda Al Murphy 1947-8-1 s.n. Humboldt Horse Mt. Comment
  UC1145116  Poa trivialis Joseph P. Tracy 1943-7-18 17435 Humboldt Big Lagoon 9 Comment
  UCD92111  Poa trivialis Joseph P. Tracy 1950-6-8 18723 Humboldt Bear River Ridge. 609 Comment
  CAS-BOT-BC244297  Podagrostis humilis Joseph P. Tracy 1935-7-27 14281 Humboldt Trinity Summit. Corral Prairie 1584 Comment
  RSA83441  Pogogyne douglasii F. W. Peirson 1926-7-14 7066 Humboldt Redwood Camp, Lower Eel River Comment
  UC17437  Polygala californica Harley P. Chandler June 1901 1328 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC17439  Polygala californica C. C. Marshall 1888-1 Humboldt Eel River Region Comment
  UC1541611  Polygala cornuta var. cornuta Harold E. Parks 1941-7-5 Humboldt Hors Lirito Creek Trinity River 1066 Comment
  UC902121  Polygala cornuta var. cornuta Joseph P. Tracy 1946-7-28 17622 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC414301  Polygonum aviculare subsp. neglectum H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans Comment
  UC672971  Polygonum bistortoides Joseph P. Tracy 1932-7-10 10384 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC146191  Polygonum californicum Joseph P. Tracy 1908-6 2922 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  CDA2769  Polygonum capitatum Gordon Leppig, Sylvia Leppig 2000-4-16 1298 Humboldt Corner 17th and J Street, Arcata. Comment
  UC1225800  Polygonum convolvulus Joseph P. Tracy 1947-8-10 17881 Humboldt Eureka 30 Comment
  HSC71819  Polygonum douglasii Thomas W. Nelson, Jane P. Nelson 1980-6-27 5954 Humboldt Six Rivers National Forest, saddle between two peaks E of Mt. Lassic 1768 Comment
  HSC55062  Polygonum minimum G. L. Clifton, Griswold 1979-7-31 11624 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC55190  Polygonum minimum G. L. Clifton, Griswold 1979-8-2 12250 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  CHSC109542  Polygonum paronychia B. Castro; L. P. Janeway 2004-9-10 1473 Humboldt North Coast South spit of Humboldt Bay, 2.2 mi NNE of Table Bluff Lighthouse site; on other side of South Spit Road from the Humboldt Bay mudflats. 2 Comment
  CHSC32964  Polygonum paronychia J. P. Smith; Advanced Taxonomy Class 1971-10-6 4957 Humboldt Dunes at the end of Murray Road in McKinleyville. Comment
  POM319269  Polygonum paronychia Patricia Wilder 1968-8-21 4416 b Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  RSA667220  Polygonum paronychia George K. Helmkamp, E. A. Helmkamp 2001-7-8 7018 Humboldt North coast: Samoa Peninsula, 2.6 miles S of CA-255 bridge across Humboldt Bay. 15 Comment
  UCD100526  Polygonum paronychia James Payne Smith Jr.; Advanced Plant Taxonomy Class 1971-10-6 4957 Humboldt End of Murray Road in McKinleyville. Comment
  UC1198089  Polygonum parryi Joseph P. Tracy 1929-8-18 8658 Humboldt on river opposite Buck Mountain; Northern Coast Ranges, Van Duzen River, Dinsmore's Ranch 762 Comment
  HSC55057  Polygonum polygaloides subsp. kelloggii G. L. Clifton, Griswold 1979-7-31 11690 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  POM210237  Polygonum spergulariiforme H. E. Parks, Joseph P. Tracy 1930-9-15 767 Humboldt Bald Hills Comment
  HSC37827  Polypodium californicum Thomas W. Nelson, Jane Nelson 1976-2-21 2250 Humboldt Tish-Tang campground Comment
  CAS-BOT-BC72087  Polypodium scouleri T. G. W. s.n. Humboldt Arcata Comment
  POM188096  Polypodium scouleri Marcus E. Jones 1931-7-12 29178 Humboldt Alton. Comment
  SEINET6166118  Polypodium scouleri W. D. Billings 1940-6-22 1345 Humboldt 1/2 mile north of Trinidad Comment
  UC1145082  Polypogon interruptus Joseph P. Tracy 1936-6-8 14871 Humboldt Trinidad 9 Comment
  HSC76356  Polystichum imbricans Denis Kearns 1981-7-8 148 Humboldt Near Bluff Creek 622 Comment
  UC338401  Polystichum imbricans subsp. imbricans unknown 1904-7-13 Humboldt along stage rd Comment
  HSC1154  Polystichum munitum R. I. Bonn 1965-5-9 40 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC55170  Polystichum munitum Gilbert Muth 1979-8-1 12166 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UCD136553  Polystichum munitum K. Esau 1934-5-8 s.n. Humboldt Near Fort Seward. 457 Comment
  SBBG88770  Potamogeton natans A. Keedy 1988-9-20 12 Humboldt off Alder Grove Rd, N of Arcata, near Hwy 299, Arcata Salt Marsh Project Comment
  JEPS393  Potamogeton pectinatus Joseph P. Tracy 1934-7-20 13462 Humboldt Big Lagoon 3 Comment
  CAS-BOT-BC143076  Potentilla anserina subsp. pacifica Annetta Carter 1934-8-17 719 Humboldt East shore of Big Lagoon, 35 miles north of Eureka 3 Comment
  UCD113696  Potentilla anserina subsp. pacifica Gordon Leppig 1998-6-25 855 Humboldt McKinleyville, Mad River Estuary at end of Murray Rd. 0 Comment
  HSC97614  Potentilla glandulosa subsp. glandulosa Cara Witte 2007-5-31 156 Humboldt Along National Forest Route 1. Near Kinsey Ridge. 1.25 miles north of intersection with 4N09. 1308 Comment
  HSC98882  Potentilla gracilis var. fastigiata Cara Witte 2008-7-30 962 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1589 Comment
  CAS-BOT-BC540160  Potentilla gracilis var. fastigiata Doris K. Kildale 1925-8-17 1232 Humboldt Trinity Summit - Waterdog Lake 1828 Comment
  UC418977  Potentilla gracilis var. gracilis H. E. Parks June, 1924 Humboldt Kneeland; Bald Hills, Kneeland Comment
  HSC15464  Prosartes hookeri D. E. Anderson 1965-5-15 3691 Humboldt About 7 mi. N of Hoopa on Bloody Camp Prairie Rd. Comment
  CAS-BOT-BC517384  Prosartes smithii Doris K. Kildale 1927-3-20 2927 Humboldt South Fork of Eel River Comment
  HSC15481  Prosartes smithii K. P. St. John 1965-5-5 12 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  SEINET12044820  Prosartes smithii Unknown 1933-1 3413 Humboldt Dyerville, South Fork of Eel River Comment
  HSC39157  Prunella vulgaris subsp. lanceolata D. E. Anderson, J. P. Smith 1971-6-28 - 1266 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  RSA22550  Prunella vulgaris var. lanceolata H. E. Parks, S. T. Parks 1937-07 24052 Humboldt Spruce Cove, Trinidad. 61 Comment
  UC577393  Prunella vulgaris var. lanceolata Joseph P. Tracy 1930-9-13 9183 Humboldt Jacoby Creek Valley 30 Comment
  POM89158  Prunus emarginata Joseph P. Tracy 1920-11-7 5410 Humboldt Around Humboldt Bay. Mad River at Lindsey Creek. 30 Comment
  UC1198778  Prunus subcordata Joseph P. Tracy 1924-10-5 6911 Humboldt Trinity River Valley near the South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  CAS-BOT-BC154740  Prunus virginiana var. demissa Doris K. Kildale 1926-5-16 1841 Humboldt Horse Mountain 792 Comment
  HSC97633  Prunus virginiana var. demissa Cara Witte 2007-6-12 247 Humboldt Cold Spring. 1410 Comment
  HSC5685  Pseudognaphalium californicum J. P. Tracy 1937-7-11 15415 Humboldt Vicinity of Garberville 122 Comment
  HSC5694  Pseudognaphalium ramosissimum Jerry Parker 1968-11-19 244 Humboldt Clam Beach, 1/4 mi. S of Strawberry Cr. Comment
  CAS-BOT-BC80118  Pseudotsuga menziesii Doris K. Kildale 1928-7-1 5664 Humboldt Klamath River at mouth of Bluff Creek Comment
  CAS-BOT-BC80122  Pseudotsuga menziesii Carl B. Wolf 1930-10-29 1785 Humboldt Old Coast Road 7 miles so. of Honeydew Post Office 304 Comment
  CDA1810  Pseudotsuga menziesii D. G. Kelch, D. A. Weinstein 2007-7-25 7 .51 Humboldt Along Hwy 299 between Lord-Ellis Summit and Hwy 96. Comment
  HSC54224  Pseudotsuga menziesii var. menziesii Griswold, Butler 1979-7-12 7287 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  HSC74451  Pseudotsuga menziesii var. menziesii Gail Newton 1980-8-10 1991 Humboldt Near Blake Mtn. 1798 Comment
  JEPS40497  Psilocarphus brevissimus var. brevissimus Joseph P. Tracy 1940-7-7 16674 Humboldt Grouse Mountain 1554 Comment
  UC165835  Psilocarphus tenellus Joseph P. Tracy 1911-7-5 3330 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of the Trinity River 152 Comment
  BLMAR157  Pteridium aquilinum var. pubescens Donald Hazlett 1994-6-7 157 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC55176  Pteridium aquilinum var. pubescens Gilbert Muth 1979-8-1 12178 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  HSC36274  Pteridium aquilinum var. pubescens John Rehling 1974-7-8 11 Humboldt Along Bald Hills Rd. 23.5 mi. from Hwy. 101 Comment
  UC577346  Pycnanthemum californicum Joseph P. Tracy 1931-9-7 9637 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  SBBG59887  Pyrola asarifolia S. W. Hutchinson -Jun-1927 317 Humboldt Redwood Hwy 304 Comment
  HSC48681  Pyrola crypta Brad Klipfel 1973-7-31 244 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC54554  Pyrola dentata Overton, Butler 1979-7-24 9560 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC98084  Pyrola dentata Cara Witte 2007-7-10 474 Humboldt Horse Mountain Botanical Area. Forest service Road 6N36A. 1334 Comment
  HSC98808  Pyrola dentata Cara Witte 2008-7-30 980 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N32E. Comment
  HSC98509  Pyrola minor Cara Witte 2008-7-25 939 Humboldt Forest Service Road 5N10. Approximately 1.5 miles north of intersection with Forest Service Road 5N10C. 1319 Comment
  UC1196363  Quercus X morehus Joseph P. Tracy 1916-6-19 4723 Humboldt North Fork of Dobbyn Creek Northern Coast Ranges 182 Comment
  HSC40045  Quercus chrysolepis Thomas W. Nelson, Jane P. Nelson 1976-7-1 2899 Humboldt Ridge N of Bear Creek 1494 Comment
  UC535725  Quercus chrysolepis Eleanor Armstrong 1934-8-22 1183 Humboldt Richardson Grove 121 Comment
  CAS-BOT-BC94312  Quercus garryana Doris K. Kildale 1926-8-31 2603 Humboldt Union Mattola, Geo. Miner Ranch Comment
  OBI36116  Quercus garryana var. garryana David J. Keil 1983-7-1 17265 Humboldt Ca. 8 mi W of jctn US 101 along Bull Creek Flats rd Comment
  UCD46719  Quercus kelloggii Lincoln Constance 1934-5-29 738 Humboldt Upper Look Prairie, south fork Eel River, Humboldt County, California. 365 Comment
  UCD47218  Quercus sadleriana D. Sanchez-Mata 1997-9-20 s.n. Humboldt Hoopa. Big Hill Lookout Road. Successional shrubland plant communitites on logged Douglas fir forests. 1230 Comment
  CAS-BOT-BC104540  Quercus vacciniifolia Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC41271  Quercus vacciniifolia Brad Klipfel 1974-6-25 417 Humboldt Horse Mtn. Comment
  UC160948  Ranunculus alismifolius var. alismellus Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5767 Humboldt Trinity Summit Comment
  UC1103003  Ranunculus aquatilis var. capillaceus Joseph P. Tracy 1913-3-9 4024 Humboldt Alton Northern Coast Region (ditch by roadside) 30 Comment
  UC1103005  Ranunculus aquatilis var. capillaceus Joseph P. Tracy 1936-6-17 14951 Humboldt Buck Mountain; lower foothills of nw slope 762 Comment
  JEPS5915  Ranunculus aquatilis var. hispidulus Joseph P. Tracy 1937-5-30 15311 Humboldt in shallow pond near Bosworth's; Larrabee Creek 365 Comment
  JEPS93972  Ranunculus californicus Vernon Oswald 1998-4-16 8912 Humboldt n. end Trinidad State Beach (Elk Head, bluffs overlooking ocean) 30 Comment
  UC503024  Ranunculus californicus Joseph P. Tracy 1932-5-10 9965 Humboldt Mattole River North Coast Region, Mattole River 15 Comment
  CAS-BOT-BC378854  Ranunculus californicus var. californicus Doris K. Kildale 1927-3-20 2917 Humboldt Philipsville, south fork of Eel River Comment
  HSC18131  Ranunculus californicus var. californicus F. B. Plett 1963-3-31 13 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  POM269620  Ranunculus flammula var. ovalis Joseph P. Tracy 1937-5-30 15312 Humboldt In Shallow pond near Bosworth's, alt 1200ft. Larrabee Creek. Comment
  UC162916  Ranunculus occidentalis Joseph P. Tracy 1911-7-7 3406 Humboldt three mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch, meadows on mountain side); Northern Coast Ranges 914 Comment
  UC1196227  Ranunculus occidentalis Joseph P. Tracy 1921-4-24 5458 Humboldt slopes facing South Fork of Eel River; Northern Coast Ranges, Phillipsville 121 Comment
  HSC26783  Ranunculus occidentalis var. occidentalis Thomas W. Nelson 1971-5-31 451 Humboldt 915 Comment
  HSC68716  Ranunculus orthorhynchus Jacqueline Greenleaf 1980-5-23 89 Humboldt Near Dinsmores 735 Comment
  HSC32043  Ranunculus parviflorus J. D. Ackerman 1974-6-12 317 Humboldt 1 mi. N of Manila between Mad River Slough and sand dunes Comment
  HSC31570  Ranunculus uncinatus var. parviflorus Glenn McGourty 1974-5-11 40 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  HSC64069  Raphanus sativus J. P. Smith 1971-10-6 4978 Humboldt End of Murray Rd. in McKinleyville. Comment
  UC1197992  Rhamnus californica Joseph P. Tracy 1934-8-4 13556 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA2933  Rhamnus purshiana Carl B. Wolf 1931-8-30 2373 Humboldt E side of Eureka on P st, on block N of Henderson Street. 30 Comment
  UC165823  Rhamnus purshiana Joseph P. Tracy 1909-7-31 3036 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC592852  Rhamnus purshiana Doris Kildale Gillespie 1932-9-1 Humboldt 1 block n Henderson St. (on S Street, Eureka); Eureka 30 Comment
Read comments
Mar 1 2013
  SEINET2031087 Image available Rhododendron columbianum Joseph P. Tracy 1924-1 6728 Humboldt Big Lagoon 6 Comment
  HSC33060  Rhododendron macrophyllum Thomas W. Nelson 1974-5-7 1239 Humboldt Old Kneeland Rd. Comment
  UC1197792  Rhododendron occidentale Joseph P. Tracy 1921-6-19 5837 Humboldt along road between Three Creeks and mouth of Willow Creek (above Koby's); Northern Coast Ranges 609 Comment
  UCSB4803  Rhododendron occidentale Phillips, Priscilla 1958-6-7 Humboldt Highway 101, 14.1 mi. south of Prairie Creek Redwoods State Park (north of Trinidad) Comment
  HSC7887  Rhododendron occidentale var. paludosum F. B. Plett 1963-4-27 36 Humboldt 1 1/2 mi. N of Trinidad along old Hwy. 101 Comment
  JEPS2830 Image available Rhododendron occidentale var. paludosum W. L. Jepson 1902-6-23 1916 Humboldt Fortuna to Eureka, Humboldt Co. Comment
  UC34924  Rhus trilobata Chestnut and Drew 1888-7-23 Humboldt Hyampom Comment
  CHSC115052  Ribes bracteosum Jessica O'Brien 2011-5-3 9231 Humboldt Near Frost Creek ca. 7.22 air miles south of Bridgeville. Triple THP. 502 Comment
  UC303170  Ribes bracteosum Joseph P. Tracy 1923-8-19 6535 Humboldt at crossing Kneeland Road (Lawrence Creek); Northern Coast Ranges 609 Comment
  HSC97603  Ribes lacustre Cara Witte 2007-5-31 162 Humboldt Buck Flat. Intersection of National Forest 1 and 5N01. 1547 Comment
  CAS-BOT-BC176808  Ribes laxiflorum Doris K. Kildale 1926-3-24 1681 Humboldt Ryan Slough - on road to Occidental Ranch Comment
  HSC39684  Ribes lobbii Thomas W. Nelson, Jane P. Nelson 1976-6-15 2737 Humboldt Just W of Goat Hill along road off FS 2S08 1463 Comment
  SEINET3121265 Image available Ribes lobbii Joseph P. Tracy 1942-6-23 17234 Humboldt Trinity Summit, near Box Camp 1524 Comment
  UC667058  Ribes lobbii Joseph P. Tracy 1935-5-12 13801 Humboldt summit between North Fork Mad River and Redwood Creek (on Trinity Highway) 670 Comment
  RSA0021132  Ribes lobbii Lincoln Constance, R. C. Rollins 1942-5-11 2864 Humboldt Near summit 8 miles east of Blue Lake. Comment
  CAS-BOT-BC206036  Ribes menziesii Joseph P. Tracy 1948-2-22 17950 Humboldt Hydesville 91 Comment
  HSC20376  Ribes menziesii Greg Bos 1965-5-2 243 Humboldt 7 mi. E of Korbel on Bald Mtn. Rd. 793 Comment
  HSC44292  Ribes menziesii Barbara Kelly 1977-4-23 306 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC79481  Ribes menziesii Kenneth Clark 1980-3-27 559 Humboldt N fork of Dead Man's Gulch 82 Comment
  UC534986  Ribes menziesii Harold E. Parks April 1933 4402 Humboldt vicinity Trinidad (type locality); McNeils Creek Comment
Read comments
Jun 26 2012
  UC583437  Ribes menziesii Elmer I. Applegate 1931-3-28 6625 Humboldt Trinidad, type locality Trinidad Comment
  HSC102620  Ribes nevadense M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1607 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC71225  Ribes roezlii Thomas W. Nelson 1977-4-20 3333 Humboldt Along USFS Road 1N15 at summit 915 Comment
  UC667069  Ribes roezlii Joseph P. Tracy 1933-3-5 10916 Humboldt Alton North Coast Ranges, Van Duzen River 30 Comment
  UCD39983  Ribes roezlii Rodney Gale Myatt 1971-9-21 1188 Humboldt Near Orleans, northeast of Hoopa Reservation, and along Klamath River. 426 Comment
  HSC45099  Ribes roezlii var. amictum R. Sutherland 1978-4-23 15 .23478 Humboldt 716 Comment
  CAS-BOT-BC198897  Ribes roezlii var. cruentum Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  HSC73148  Ribes sanguineum M. A. Baker 1980-5-18 1286 Humboldt Near Black Mtn. 1006 Comment
  HSC76265  Ribes sanguineum Teresa Prendusi 1981-7-24 511 Humboldt Near Whiteys Peak 1634 Comment
  RSA0019528  Ribes sanguineum Peter H. Raven, Richard Snow 1958-7-20 13644 Humboldt 1.1 miles south of junction of Friday Ridge Road on Titlow Hill Road, near Grouse Ridge. Comment
  CAS-BOT-BC144682  Ribes sanguineum var. glutinosum Ira L. Wiggins 1930-7-22 4693 Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  CHSC68499  Ribes sanguineum var. glutinosum Vernon H. Oswald 1997-4-10 8323 Humboldt Elk Head, north end of Trinidad State Beach. 30 Comment
  CDA25591  Ribes viscosissimum Gordon Leppig 1998-6-1 865 Humboldt Horse Mountain. Buck Flat, Titlow Hill Road at Ammon Ridge Road. Comment
  RSA168871  Rigiopappus leptocladus Joseph P. Tracy 1950-7-6 18996 Humboldt Two miles south of Burr Valley on the Albee Road. 1159 Comment
  JEPS2836 Image available Romanzoffia tracyi Joseph P. Tracy 1933-5-9 11008 Humboldt wet slide on bluff near Ocean; Northern Coast Region, Vicinity of Trinidad; Vicinity of Trinidad, Humboldt Co. 15 Comment
  UC702003  Romanzoffia tracyi Harold E. Parks March 1946 24276 Humboldt ocean bluffs at Trinidad Head Comment
  UC205457  Rorippa nasturtium-aquaticum Joseph P. Tracy 1919-5-31 5169 Humboldt along Willow Creek (tributary of Trinity River) near its mouth Northern Coast Ranges, along Willow Creek 152 Comment
  CHSC33380  Rosa canina J. O. Sawyer; R. J. Cole 1977-7-3 3019 A Humboldt Along Big Hill Road (8N01) at Mud Spring. Comment
  RSA2930  Rosa eglanteria Carl B. Wolf 1931-8-28 2363 Humboldt 1/8 mile from Rohnerville on the road to Fortuna 30 Comment
  BLMAR162  Rosa gymnocarpa Donald Hazlett 1994-6-7 162 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC146483  Rosa gymnocarpa W. R. Dudley 1899-6-1 s.n. Humboldt Shady run - Scotia Comment
  JEPS47241  Rosa gymnocarpa W. L. Jepson 1932-7-30 16462 Humboldt Bull Creek 121 Comment
  UC467683  Rosa gymnocarpa Mrs. M. H. Manning 1901-6-7 61 Humboldt Hupa Comment
  UCD113883  Rosa gymnocarpa T. E. Weier 1942-5-21 s.n. Humboldt Perriot's Redwood Grove, near Dyerville, Highway 101. Comment
  CAS-BOT-BC146825  Rosa nutkana Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  RSA201872  Rosa nutkana Geo. Parrish, G. Parrish 1930-5-21 s.n. Humboldt Trinidad. Comment
  UC588192  Rosa nutkana var. nutkana H. E. and S. T. Parks May 1937 5816 Humboldt Spruce Cove Trinidad 60 Comment
  CAS-BOT-BC148223  Rosa spithamea Volney Rattan 1883-6-1 s.n. Humboldt Trinity River, from Hyampom to Hoopa Comment
  HSC56985  Rubus armeniacus Overton, Butler 1979-7-23 9530 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC25426  Rubus laciniatus J. O. Sawyer 1972-11-4 2476 Humboldt 2 mi. S of Berry Summit on Titlow Hill Rd. 1220 Comment
  CAS-BOT-BC148386  Rubus leucodermis Doris K. Kildale 1927-5-13 3138 Humboldt Redwood Creek at Berry's 289 Comment
  HSC74680  Rubus leucodermis Gail Newton 1981-7-10 2225 Humboldt Near Board Camp Butte 1494 Comment
  HSC22496  Rubus parviflorus G. T. Nordstrom 1966-4-24 11 Humboldt Kneeland-Maple Creek Rd. near jct. with Korbel Rd. Comment
  HSC89607  Rubus parviflorus M. Roantree 1985-8-25 11 Humboldt E side of Trinidad Head along paved rd. Comment
  SBBG115409  Rubus parviflorus A. T. Leiser 1980-7-9 Humboldt N of Orick, Hwy 101 reroute, near Redwood Park Comment
  CHSC94934  Rubus spectabilis K. Lang; J. Lang 2005-3-16 38 Humboldt Trinidad, N. California coast. 51 Comment
  HSC19680  Rubus spectabilis S. R. Johnson 1965-3-14 7 Humboldt 1 mi N of Luffenholtz Beach Comment
  HSC19686  Rubus spectabilis D. E. Anderson 1962-2-10 1914 Humboldt 1.0 mi. S of Big Lagoon school along abandoned stretch of Hwy. 101 Comment
  HSC31034  Rubus spectabilis G. D. Wallace, Larry E. DeBuhr 1972-3-29 1010 Humboldt Prairie Creek Redwoods State Park in campground Comment
  POM271104  Rubus spectabilis Lyman D. Benson 1929-7-15 1812 Humboldt Clam Beach, Trinidad. Comment
  SEINET4093693  Rubus spectabilis O. M. Clark 1932-1 5325 Humboldt South Eureka. Comment
  HSC32238  Rubus ursinus J. O. Sawyer 1970-6-24 2256 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  HSC55314  Rubus ursinus Griswold, Butler 1979-7-11 7024 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC90634  Rubus ursinus Gail Newton 1982-6-1 3571 Humboldt Elk River Wildlife Area, Eureka. Comment
  UCD89723  Rubus ursinus Lindsay Clark 2008-6-23 KRC 2 Humboldt Nadelos Campground in King Range Conservation Area, 3.8 miles SE of Shelter Cove. 551 Comment
  SEINET5710900  Rudbeckia occidentalis Lowell E. Urbatsch 1990-1 6799 Humboldt From Calif. 99 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork; take the left fork (not leading to Denny but to Waterman Ridge and Zeigler Point) and travel 6.7 miles down this road to another fork. Take the rt. fork (away from the rd. leading to Waterman Ridge and Willow Creek). On this rd. (FD 7 NO4) travel 1.5 miles to another fork; continue on 7No4N (the left fork) for 7.4 miles. At this point, take 7NO4N, the rd to Groves Prairie. The collection site is about 50m to the right near the Groves Prairie Creek sign. The site is 17.9 miles from Hawkins Bar just beyond mile marker 9.; Groves Prairie Comment
  SEINET5710905  Rudbeckia occidentalis Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6104 Humboldt From California 299 at Hawkins Bar (In Trinity County), turn onto the road to Denny and travel 1.7 miles down this road toa fork in the road. Take the lefthand road (leading to Waterman Ridge, Zeigler Point) and travel 6.7 miles down this road to antoher fork in the road. Take the right fork (away from thr road leading to Waterman Ridge and Willow Creek). On the road (7NO4), travel 1.5 miles to another fork; continue on 7NO4 (the left fork) for 7.4 miles. At this point, take 7 NO4N, the road to Groves Prairie. The collection site is a short distance up the road.; Groves Prairie Comment
  HSC100603  Rumex acetosella Carl C. Marshall May 1886 163 Humboldt Everywhere. Comment
  HSC97647  Rumex acetosella Kevin Thomas 2004-4-26 18 Humboldt Stewart Ave Comment
  HSC99572  Rumex californicus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 237 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  CAS-BOT-BC421523  Rumex crassus C. L. Hitchcock; J. S. Martin 1939-7-14 5438 Humboldt At Shelter Cove Comment
  HSC17616  Rumex obtusifolius Wm. F. Bowman 1968-11-20 Humboldt 4 mi. SE of Arcata, along Jacoby Creek Rd. Comment
  JEPS39873  Rumex occidentalis Milo S. Baker 1923-8-4 177 Humboldt s end Stone Lagoon Comment
  UC1225779  Rumex occidentalis Joseph P. Tracy 1948-9-12 18208 Humboldt Box Camp Trinity Summit 1463 Comment
  UC672926  Rumex occidentalis Joseph P. Tracy 1932-7-20 10730 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC7023  Rumex pulcher H. N. Bolander Jun 1867 6568 Humboldt Shelter Cove Comment
  SEINET12155885  Rupertia physodes J. P. Tracy 1950-1 18783 Humboldt Jenk's Ranch. Mail Ridge, N of Harris 7 mi Comment
  UC1100023  Ruppia maritima Malcolm A. Nobs and S. Galen Smith 1949-8-3 1181 Humboldt ca 4 mi s Eureka (on Highway 101, near mouth of Elk River) Comment
  UC275565  Ruppia maritima Joseph P. Tracy 1923-5-30 6248 Humboldt mouth of Little River; Northern Coast Ranges 1 Comment
  HSC37955  Salicornia depressa Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  CAS-BOT-BC129890  Salix bonplandiana W. R. Dudley 1899-6-21 s.n. Humboldt Junction of north and south Fork of Eel River Comment
  CAS-BOT-BC103818  Salix exigua Harold E. Parks 1931-5-14 0964 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  HSC19943  Salix exigua var. hindsiana H. E. Parks, J. P. Tracy 1931-5-17 971 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  UC55406  Salix exigua var. hindsiana Harley P. Chandler June, 1901 1482 Humboldt Klamath R. North Coast Ranges, Klamath R. 365 Comment
  CAS-BOT-BC104114  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01248 Humboldt floodplain of Eel River at Fernbridge Comment
  CAS-BOT-BC107677  Salix hookeriana John Johnson 1962-3-15 1132 Humboldt Lamphere Ranch, about 4 miles west of Arcata. Sand dune formation along beach Comment
  CAS-BOT-BC107736  Salix hookeriana Harold E. Parks 1931-5-28 1000 Humboldt Little River Lagoon Comment
  CAS-BOT-BC107748  Salix hookeriana Harold E. Parks 1931-5-12 956 Humboldt Samoa, Humboldt Bay Comment
  CAS-BOT-BC107749  Salix hookeriana Harold E. Parks 1931-5-12 953 Humboldt Samoa, Humboldt Bay Comment
  CAS-BOT-BC107771  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1226 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  CAS-BOT-BC107772  Salix hookeriana Harold E. Parks; Susan T. Parks 1932-4-10 1103 a Humboldt Little River Lagoon, Trinidad Comment
  CHSC96715  Salix hookeriana Gordon Leppig 2005-4-8 2211 Humboldt Humboldt Bay Dunes and Wetlands. Eureka, swamp at west end of W. Hawthorne St. NAD 27 UTM Zone 10, 4515862 N, 400315 E. 3 Comment
  HSC20072  Salix hookeriana H. E. Parks, S. T. Parks 1932-4-12 1112 Humboldt Blue Slide, Van Duzen River Comment
  HSC90434  Salix hookeriana Jean Hanson 1980-3-8 17 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  RSA152331  Salix hookeriana Joseph P. Tracy 1948-4-4 17958 Humboldt Near Samoa on Humboldt Bay. 6 Comment
  RSA342501  Salix hookeriana Robert F. Thorne, Percy C. Everett 1965-8-7 35230 -c Humboldt Big Lagoon. 3 Comment
  UC275526  Salix hookeriana Joseph P. Tracy 1924-9-21 6884 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  UC469120  Salix hookeriana Joseph P. Tracy 1927-4-23 7922 Humboldt Big Lagoon Northern Coast Ranges 6 Comment
  UC469126  Salix hookeriana Joseph P. Tracy 1931-8-23 9617 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC470425  Salix hookeriana Joseph P. Tracy 1931-10-3 9710 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UC481336  Salix hookeriana Harold E. Parks August, 1931 1057 Humboldt Bishop Pine Lodge Trinidad 150 Comment
  UC512081  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1224 Humboldt 1 mi n Samoa (pine barrens near the coast) Comment
  UC512100  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1210 a Humboldt 4 1/2 mi s Trinidad (Little River Lagoon); Little River Lagoon Comment
  UC512106  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1207 Humboldt 4 1/2 mi s Trinidad; Little River Lagoon Comment
  JEPS14787  Salix laevigata Joseph P. Tracy 1933-6-9 12528 Humboldt along Eel River Shively; Northern Coast Ranges 30 Comment
  HSC19989  Salix lasiandra H. E. Parks, S. T. Parks 1932-4-5 1101 Humboldt Little River Lagoon Comment
  HSC40871  Salix lasiandra Linda M. Barker 1976-9-3 1690 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC1196582  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1942-9-6 17309 Humboldt near McKay Camp; S. Fork Mt. 1676 Comment
  UC504056  Salix lasiandra subsp. lasiandra Jim Davis Apr 25 1933-Apr 27 1933 3 Humboldt around Eureka Eureka Comment
  CAS-BOT-BC128191  Salix lasiandra var. lasiandra Harold E. Parks; Susan T. Parks 1931-8-15 1078 Humboldt Blue Slide, Van Duzen River 100 Comment
  CAS-BOT-BC128192  Salix lasiandra var. lasiandra Harold E. Parks; Susan T. Parks 1932-5-12 1150 Humboldt In swamp near bridge at mouth of Maple Creek, Big Lagoon Comment
  CAS-BOT-BC107101  Salix lasiolepis Joseph P. Tracy 1934-3-11 13146 Humboldt Weitchpec, frequent along Klamath River 91 Comment
  HSC19990  Salix lasiolepis R. Spellenberg, D. Sutherland, A. Sylvester 1966-3-27 1358 Humboldt 1.5 mi. E of Blue Lake on Hwy. 299 Comment
  HSC96595  Salix lasiolepis Gordon Leppig 2003-2-4 1803 Humboldt NWR South Bay Unit 2 Comment
  HSC98670  Salix lasiolepis Cara Witte 2008-7-10 858 Humboldt Along National Forest 1 on Kinsey Ridge. 1/4 mile from Forest Service Road 4N06. 1241 Comment
  HSC98689  Salix lasiolepis Cara Witte 2008-9-13 1042 Humboldt Forest Service Road 4N38. 1/2 mile south of intersection to Tri Board Camp. 1506 Comment
  HSC99836  Salix lasiolepis Jimerson, J. Pageau 1979-6-22 601 Humboldt Near Bee Mtn., close to the town of Orleans 655 Comment
  POM219356  Salix lasiolepis Joseph P. Tracy 1931-3-31 9327 Humboldt Redwood Creek. At Berry's. 274 Comment
  RSA34275  Salix lasiolepis Doris K. Kildale 1927-3-22 2934 Humboldt Ryan Slough. Comment
  UC469404  Salix lasiolepis H. E. Parks and Joseph P. Tracy 1931-5-23 9436 Humboldt vicinity of Trinidad (near R.R. Station); Northern Coast Region 60 Comment
  UC469413  Salix lasiolepis Joseph P. Tracy 1927-4-10 7888 Humboldt Redwood Creek, at Berry's 274 Comment
  UC469434  Salix lasiolepis Joseph P. Tracy 1931-10-11 9715 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC504029  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1321 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  UC506388  Salix lasiolepis Joseph P. Tracy 1932-8-21 10357 Humboldt Three Cabins Northern Coast Ranges, Chaparral Mountain (on lower western foothills of mt.) 457 Comment
  UC506394  Salix lasiolepis Joseph P. Tracy 1932-6-19 10244 Humboldt Buck Mountain Northern Coast Ranges (lower foothills of nw slope, in gully) 762 Comment
  UC506405  Salix lasiolepis Joseph P. Tracy 1932-10-2 10859 Humboldt near Bair's; Northern Coast Ranges, Redwood Creek 213 Comment
  UC512042  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1322 Humboldt at Berry's Redwood Creek (on Trinity Hwy.) 274 Comment
  UCSB11963  Salix lasiolepis Ball, Carleton; Parks, Harold; Tracy, Joseph 1932-5-13 Humboldt Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  RSA10910  Salix lasiolepis var. sandbergii Carleton R. Ball, Harold E. Parks, Joseph P. Tracy 1932-5-17 1324 Humboldt Berry's Mountain. E of Redwood Creek. On Trinity Hwy. 762 Comment
  HSC102022  Salix lucida subsp. lasiandra M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 923 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  POM220145  Salix lucida subsp. lasiandra H. E. Parks, Joseph P. Tracy 1931-5-17 966 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  POM362660  Salix lucida subsp. lasiandra H. E. Parks, Susan T. Parks 1932-5-12 1150 Humboldt Near bridge at mouth of Maple Creek. Big Lagoon. Comment
  POM218957  Salix melanopsis H. P. Bracelin 1931-5-2 283 Humboldt E of Redwood Hwy, 6km S of Alton. 20 Comment
  POM220143  Salix melanopsis H. E. Parks, Joseph P. Tracy 1931-5-17 972 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  RSA171964  Salix melanopsis Robert F. Thorne 1957-9-2 18986 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC470454  Salix melanopsis Joseph P. Tracy 1931-9-7 9646 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC481287  Salix melanopsis Harold E. Parks 1931-5-14 961 Humboldt Van Duzen R. between Alton and Carlotta; Van Duzen R. 15 Comment
  UC481306  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 972 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC519367  Salix melanopsis Joseph P. Tracy 1933-7-20 12805 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  UC519373  Salix melanopsis Joseph P. Tracy 1933-5-20 12262 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  CAS-BOT-BC129161  Salix scouleriana Joseph P. Tracy 1936-2-2 14766 Humboldt Vicinity of Carlotta 30 Comment
  SD885  Salix scouleriana Harold E. Parks 1931-5-12 951 Humboldt Bishop Pine Lodge, Trinidad 149 Comment
  UC1196709  Salix scouleriana Joseph P. Tracy 1936-2-2 14765 Humboldt vicinity of Carlotta Carlotta 30 Comment
  UC470447  Salix scouleriana Joseph P. Tracy Jul 16 1930-Jul 19 1930 9095 Humboldt forest near McKay Camp (S. Fork Mt.); Northern Coast Ranges, S. Fork Mt. 1676 Comment
  UC490506  Salix scouleriana Joseph P. Tracy 1932-8-11 10338 Humboldt Bridgeville Northern Coast Ranges, Bridgeville 228 Comment
  UC490530  Salix scouleriana Joseph P. Tracy 1932-7-13 10507 Humboldt open groung at Corral Prairie (back from the meadows); Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  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
  UC512016  Salix scouleriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1227 Humboldt pine barrens near coast 1 mi. n. Samoa Comment
  CAS-BOT-BC128963  Salix sitchensis W. J. Ferlatte 1967-6-13 1119 Humboldt Cranell Coastal valley 3 Comment
  HSC79545  Salix sitchensis Kenneth Clark 1980-3-24 546 Humboldt Alluvial terrace of Dead Man's Gulch 15 Comment
  HSC96598  Salix sitchensis Gordon Leppig 2003-2-20 1811 Humboldt Eureka, W end of W Hawthorne St. 3 Comment
  RSA178536  Salix sitchensis Joseph P. Tracy 1950-9-10 19365 Humboldt On foothills of the Cap Ridge. 0.5 mile S of town. Along coast rd 1 mile inland from Cape Mendocino. Comment
  UC1225790  Salix sitchensis Joseph P. Tracy 1948-4-11 17972 Humboldt 3 mi. e. Dyerville (Eel R.); Eel R. 60 Comment
  UC302154  Salix sitchensis Joseph P. Tracy 1926-2-21 7364 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC490500  Salix sitchensis Joseph P. Tracy 1932-10-2 10857 Humboldt Redwood Creek near Bair's; Northern Coast Ranges, Redwood Creek 213 Comment
  UC1225921  Salix tracyi Joseph P. Tracy 1942-4-26 17071 Humboldt near Blue Lake, along Mad River 15 Comment
  UC177248  Sambucus mexicana Joseph P. Tracy 1912-7-26 3836 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC3981  Sambucus racemosa var. racemosa A. E. Inman 1962-5-25 Humboldt S bank of Mad River, S of Azalea Hill Rd. Comment
  SDSU2909  Sambucus racemosa var. racemosa D. F. Howe 1963-8-6 3704 Humboldt 4.5 miles south of Orick on #101. Comment
  UCD170574  Sambucus racemosa var. racemosa Gordon Leppig 1998-4-13 737 Humboldt Arcata, Anvick Rd. 12 Comment
  UC1197112  Sanicula arctopoides J. P. Tracy 1899-4-9 303 Humboldt immediate vicinity of Eureka (at Bucksport); Bucksport 0 Comment
  HSC81923  Sanicula crassicaulis Thomas W. Nelson, Jane P. Nelson 1979-7-3 4963 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek roads. 610 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
  HSC21634  Sanicula crassicaulis V. G. Vieira 1963-5-18 28 Humboldt Lamphere's Comment
  UC1022528  Sanicula crassicaulis C. Ritchie Bell 1952-5-14 3 X456 Humboldt Patrick Point State Park Comment
  JEPS1004  Sanicula graveolens Joseph P. Tracy 1929-7-4 8614 A Humboldt French Camp Ridge 1066 Comment
  UC1197086  Sanicula laciniata Joseph P. Tracy 1921-4-24 5454 Humboldt facing South Fork Eel River (Northern Coast Ranges, Phillipsville); Northern Coast Ranges, Phillipsville 121 Comment
  UC774703  Saxifraga mertensiana Carl B. Wolf 1941-3-2 4068 Humboldt 2 mi s of Honeydew (along Honeydew Creek); North Coast Range, Honeydew Creek 152 Comment
  CAS-BOT-BC441184  Saxifraga mertensiana Doris K. Kildale 1927-3-20 2930 Humboldt Philipsville. South fork of Eel River Comment
  UCSB28675  Saxifraga mertensiana Calhoun, R. 1973-3-26 Humboldt Along Avenue of the Giants, 1 mile from southern junction with US 101, 3 miles north of Garberville 45 Comment
  POM87944  Schoenoplectus acutus var. occidentalis Le Roy Abrams, Rimo C. Bacigalupi 8272 Humboldt Big Lagoon, south of Orick. Comment
  HSC37549  Schoenoplectus americanus J. D. Ackerman 1975-6-10 465 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  UC183685  Scirpus cernuus J. P. Tracy 1900-5-28 816 Humboldt immediate vicinity Eureka; vicinity Eureka 0 Comment
  UC668011  Scirpus cernuus Joseph P. Tracy 1938-6-16 15942 Humboldt Trinidad 3 Comment
  HSC66221  Scoliopus bigelovii N. J. Miller 1977-3-5 1 Humboldt Camp Bauer Park, 100 yds. E of baseball field, 0.25 mi. NE of Korbel 58 Comment
  HSC60289  Scrophularia californica Phyllis Krieg 1979-4-21 Humboldt Above Clam Beach Lagoon, E of Hwy. 101 0 Comment
  UC154261  Scutellaria antirrhinoides M. H. Manning 1900-1 Humboldt near Hupa Comment
  UC175798  Scutellaria antirrhinoides Joseph P. Tracy 1912-7-26 3842 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  RSA82291  Scutellaria antirrhinoides F. W. Peirson 1932-7-7 10259 Humboldt Willow Creek. A few miles above town of that name. Comment
  JEPS62902  Scutellaria siphocampyloides Joseph P. Tracy 1932-5-17 10083 Humboldt Trinity River Valley, Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC58160  Sedum divergens G. L. Clifton, Griswold 1979-8-2 12221 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC59361  Sedum laxum subsp. heckneri M. A. Baker 1979-7-8 621 Humboldt 2 km S of the junction of the roads to Blue Creek Mtn. and Onion Lake 1400 Comment
  CAS-BOT-BC61460  Sedum laxum subsp. heckneri Volney Rattan 106 Humboldt Klamath Comment
  HSC98999  Sedum laxum subsp. laxum Cara Witte 2007-6-19 294 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38 1220 Comment
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Aug 17 2011
  HSC56994  Sedum obtusatum subsp. retusum Overton, Butler 1979-7-24 9564 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC57121  Sedum obtusatum subsp. retusum Overton, Butler 1979-7-25 9867 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  HSC57176  Sedum obtusatum subsp. retusum Overton, Butler 1979-7-26 9997 Humboldt Near Willow Creek 1341 Comment
  SEINET4076756  Sedum radiatum O. M. Clark 1932-1 1295 Humboldt South Eureka. 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
  HSC70962  Sedum spathulifolium var. spathulifolium Thomas W. Nelson 1977-6-15 3456 Humboldt Along Titlow Hill Rd., 3/4 mi. S of junction with Hwy. 299 Comment
  UC630453  Senecio glomeratus H. E. and S. T. Parks 1937-7-1 24033 Humboldt Spruce Cove Trinidad, Spruce Cove 60 Comment
  UC1239501  Senecio glomeratus Joseph P. Tracy 1936-8-24 15173 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  HSC70329  Senecio integerrimus M. A. Baker 1980-6-8 1884 Humboldt Near Buck Flat. 1554 Comment
  HSC56353  Senecio integerrimus var. major Griswold, Butler 1979-7-10 6324 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC6113  Senecio integerrimus var. major D. E. Anderson 1965-5-1 3571 Humboldt Along road to Bluff Creek campground, about 3 mi. from its junction with Hwy. 96 Comment
  UC1223157  Senecio integerrimus var. major Joseph P. Tracy 1950-6-15 18793 Humboldt 7 mi n Harris (Jenk's Ranch); Mail Ridge Comment
  UC581704  Senecio integerrimus var. major Joseph P. Tracy 1928-5-6 8429 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC204824  Senecio minimus Joseph P. Tracy 1918-7-28 5088 Humboldt Ocean Beach at Humboldt Bay 60 Comment
  UCD135598  Senecio minimus P. B. Kennedy 1925-8-29 s.n. Humboldt northeast Eureka. Comment
  UCD135609  Senecio minimus John M. Tucker 1948-9-4 1863 Humboldt Beck's Ranch, Hydesville. Comment
  UC450005  Senecio sylvaticus Joseph P. Tracy 1918-9-1 5095 Humboldt Nowella Camp, on old Kneeland Prairie Road 457 Comment
  CDA7663  Senecio sylvaticus T. C. Fuller 1962-8-6 9355 Humboldt Highway 299 to Blue Lake, 2.6 miles east of Bald Mountain Summit, 1 mile west of Green Point School. 0 Comment
  HSC68086  Senecio triangularis J. P. Smith, Steve Selva 1970-6-30 4114 Humboldt Comment
  HSC6134  Senecio vulgaris Paul Shields 1955-6-18 Humboldt H.S.C. campus Comment
  NY64506  Sequoia sempervirens A. Kellogg 1868-1 940 Humboldt Humboldt Comment
  RSA161062  Sequoia sempervirens Joseph P. Tracy 1926-2-21 7355 Humboldt Northern Coast Ranges: Blue Slide, on Van Duzen River 91 Comment
  SDSU292  Sequoia sempervirens Wayne A. Bemis 1963-11-29 245 Humboldt 1289 D st Arcata. Empire series Sandstone, West slope. Ocean fog belt of North Coast. 55 Comment
  UC1134198  Sequoia sempervirens H. L. Person 1933-8-10 Humboldt n of Fortuna; Rohnerville Quad., Holmes-Eureka area Comment
  UC55657  Sequoia sempervirens J. P. Tracy 1901-8-11 1277 Humboldt immediate vicinity of Eureka 0 Comment
  UC667965  Sequoia sempervirens Joseph P. Tracy 1935-12-8 14764 Humboldt near Korbel 304 Comment
  SEINET11737924  Sequoia sempervirens K. S. Erdman 1970-1 4791 Humboldt Redwood National Park near Holter Ridge entrance along the Bald Hills Road SE of Orick Comment
  CDA13777  Setaria parviflora P. Haggard 1997-12-12 s.n. Humboldt North Coast Ranges; East of Arcata on North Bank Rd. above Mad River immed. E of Azalea Reserve. Stand approx. 25' in length, growing in recently disturbed area. Perennial. 0 Comment
  CAS-BOT-BC243618  Setaria pumila Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  HSC102927  Sidalcea M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 885 Humboldt Patterson Meadows 1555 Comment
  HSC16035  Sidalcea diploscypha Lincoln Constance 1934-5-23 613 Humboldt SW slope, upper end of Look Prairie, S Fork Eel River, Bull Creek region 366 Comment
  UC18699  Sidalcea malachroides J. Burtt Davy 1899-6-13 5482 Humboldt Englewood Prairie North Coast Ranges, Englewood Prairie Comment
  HSC35614  Sidalcea malviflora Thomas W. Nelson, B. Reinhardt 1975-7-30 2110 Humboldt Whiting Spring Comment
  HSC35603  Sidalcea malviflora subsp. nana Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2009 Humboldt French Camp, Bald Hills. Comment
  HSC97915  Sidalcea malviflora subsp. nana Cara Witte 2007-6-14 286 Humboldt White Oak Opening. Along Kinsey Ridge. Near hunting camp. 1238 Comment
  HSC103244  Sidalcea malviflora subsp. patula John McRae, Carrie Schreiber 2010-6-18 Humboldt USDA Forest Service, Humboldt Nursery, Baird Rd., McKinleyville 15 Comment
  UC108863  Sidalcea malviflora subsp. patula J. W. Blankinship 1893-6-19 Humboldt Hydesville Comment
  HSC104342  Sidalcea oregana subsp. eximia James Regan, Humboldt Redwood Co., LLC 2 Humboldt Table Bluff 46 Comment
  UC1198364  Silene antirrhina Joseph P. Tracy 1911-7-12 3519 Humboldt mountain slopes along road between Three Creeks and mouth Willow Creek; Northern Coast Ranges, btw Three Creeks and mouth Willow Cre 762 Comment
  CAS-BOT-BC384547  Silene bridgesii Henry M. Pollard 1948-7-17 s.n. Humboldt Woods near Orleans Comment
  UC668099  Silene californica Joseph P. Tracy 1938-7-7 16040 Humboldt Grouse Mountain 1524 Comment
  UC668101  Silene californica Joseph P. Tracy 1938-7-4 15989 Humboldt Valley of South Yager Creek 762 Comment
  RSA47143  Silene californica Doris K. Kildale 1925-3-28 510 Humboldt Fleener Creek - hillside at mouth of valley on coast. Comment
  UC161017  Silene californica Joseph P. Tracy 1906-6-24 2502 Humboldt e Field's Landing (Humboldt Hill, region about Humboldt Bay); Northern Coast Region, region about Humboldt Bay 0 Comment
  JEPS23250  Silene campanulata Joseph P. Tracy 1932-7-18 10704 Humboldt head of Brett Hole , head of Brett Hole (Trinity Summit) 1828 Comment
  RSA53804  Silene campanulata subsp. glandulosa H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mts. 1524 Comment
  HSC44538  Silene campanulata subsp. greenei Brad Klipfel 1973-7-15 154 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC84003  Silene gallica L. P. Janeway, C. K. Geldin-Meyers 1983-4-15 225 Humboldt Field around the new Science and Engineering Bldg., HSU campus 30 Comment
  POM193013  Silene hookeri subsp. bolanderi H. E. Parks, Joseph P. Tracy 1930-5-25 0791 Humboldt Laribee Valley. 793 Comment
  RSA29073  Silene hookeri subsp. bolanderi Lincoln Constance, A. A. Beetle 1940-5-17 2612 Humboldt Edge of Quercus Garryana grove, rocky knolls on N slope. McClellan Mtn, near Eureka 823 Comment
  HSC43853  Silene laciniata subsp. californica Maralyn O'Meara 1974-7-17 551 Humboldt Kneeland Comment
  HSC70825  Silene laciniata subsp. californica M. A. Baker 1980-6-7 1819 Humboldt Near Ammon Creek 115 Comment
  CAS-BOT-BC389052  Silene laciniata subsp. californica D. E. Breedlove 1961-7-4 652 Humboldt 10.9 miles west of Willow Creek on US 299 822 Comment
  HSC44729  Silene laciniata subsp. californica Maralyn O'Meara 1972-6-8 78 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  UCD135877  Silybum marianum James P. Smith; Advanced Plant Taxonomy Class 1973 1973-5-26 6872 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC180226  Sinapis arvensis Joseph P. Tracy 1914-10-11 4635 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  JEPS53885  Sisymbrium altissimum W. L. Jepson 1932-8-8 16530 Humboldt hill above Weott Comment
  JEPS53878  Sisymbrium officinale Lincoln Constance 1934-5-31 755 Humboldt along Bull Creek, from w boundary of park to Grasshopper Peak (Squaw Creek) Road, n side of Bull Creek, South Fork Eel River Bull Creek; Bull Creek Region, South Fork Eel River Comment
  HSC13925  Sisyrinchium bellum D. E. Anderson 1962-3-31 1966 Humboldt Along new Hwy. 101, W side of Freshwater Lagoon Comment
  HSC49925  Sisyrinchium bellum Maralyn O'Meara 1974-7-11 539 Humboldt Kneeland, Barry Ridge along private road Comment
  HSC44756  Sisyrinchium bellum Maralyn O'Meara 1972-6-8 83 Humboldt Along Bald Hills Rd. 16.4 mi. E of junction with Hwy. 101 Comment
  HSC91874  Sisyrinchium californicum E. Mackey 1986-5-13 Humboldt Patrick's Point State Park Comment
  UC162691  Sisyrinchium californicum J. P. Tracy 1911-6-25 3247 Humboldt immediate vicinity of Eureka 0 Comment
  HSC13933  Sisyrinchium californicum D. E. Anderson 1961-9-9 1798 Humboldt Big Lagoon County Park Comment
  JEPS62108  Smilacina racemosa W. L. Jepson 1902-7-24 2114 Humboldt 1/2 mi below summit; Trinity Summit 2133 Comment
  RSA246653  Solanum americanum Robert F. Thorne, Percy C. Everett 1965-8-5 35147 Humboldt Samoa Dunes. 3 Comment
  UC176963  Solanum americanum Joseph P. Tracy 1912-10-20 3992 Humboldt Loleta; Northern Coast Ranges, Loleta 30 Comment
  UCD126960  Solanum triflorum Luther Jones 1962-8-10 s.n. Humboldt King River Valley, northwest of Orovada. (Nevada). Comment
  JEPS12169  Solanum umbelliferum Lincoln Constance 1934-6-2 788 Humboldt Bull Creek Region, South Fork Eel River, Bull Creek road to mouth of Bull Creek, and up Bull Creek South Fork Eel River; Bull Creek Region, , Bull Creek Comment
  UC1196152  Solanum umbelliferum Joseph P. Tracy 1935-7-20 14325 Humboldt head of Devil's Hole (Trinity Summit); , Devil's Hole 1828 Comment
  UC577352  Solanum umbelliferum Joseph P. Tracy 1937-5-30 15316 Humboldt Bridgeville 198 Comment
  UC585974  Solanum umbelliferum Joseph P. Tracy 1924-5-4 6668 Humboldt 6 mi w of Bridgeville (Van Duzen River); Van Duzen River 121 Comment
  UC175192  Solidago elongata Joseph P. Tracy 1913-9-9 4397 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 30 Comment
  SEINET11382898 Image available Solidago elongata H. E. Parks 1931-1 1056 Humboldt Trinidad, Humboldt County. Comment
  UC1478656  Solidago spathulata Robert F. Thorne 1974-7-29 45070 Humboldt between Humboldt Bay and Pacific Ocean (Samoa Dunes); Samoa Dunes Comment
  UCD136062  Solidago spathulata T. C. Fuller 1961-9-28 7051 Humboldt Arcata-Samoa Road, 1.3 miles north of Samoa. Comment
  RSA0043130  Solidago spathulata Patricia Wilder 1968-8-21 4401 Humboldt Northern coastal arm of Humboldt Bay, ca. two miles southwest of Samoa. Humboldt Bay drainage area. 8 Comment
  UC673079  Solidago velutina subsp. californica Joseph P. Tracy 1940-8-18 16702 Humboldt South Fork Eel River near Bolling Grove; South Fork Eel River 91 Comment
  UC673080  Solidago velutina subsp. californica Joseph P. Tracy 1940-8-18 16701 Humboldt South Fork Eel River near Bolling Grove; South Fork Eel River 91 Comment
  UC582433  Sonchus asper Joseph P. Tracy 1932-5-22 10115 Humboldt between Miranda and Redway (South Fork Eel River); North Coast Ranges, South Fork Eel River 91 Comment
  HSC45079  Sonchus asper R. Sutherland 1976-8-6 2 .6876 Humboldt Briceland 186 Comment
  HSC63283  Sorbus scopulina M. A. Baker 1979-6-29 934 Humboldt Head of Oregon Creek Comment
  HSC62679  Sparaxis tricolor Michelle Stevens 1979-5-18 49 Humboldt Arcata, 11th and B St. 0 Comment
  UCD92983  Spartina foliosa Gordon Leppig 1998-8-6 992 Humboldt Arcata, Arcata Marsh and Wildlife Sanctuary. On Humboldt bay side of Klopp Lake dike. 2 Comment
  HSC89986  Spergularia canadensis var. occidentalis Leonel Arguello 1989-7-15 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  CAS-BOT-BC390302  Spergularia macrotheca var. macrotheca Alice Eastwood; John Thomas Howell 1936-7-3 3782 Humboldt Eureka Comment
  UCR122377  Spergularia marina George K. Helmkamp, E. A. Helmkamp 2001-7-8 7007 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  UC668080  Spergularia rubra Joseph P. Tracy 1936-6-3 14850 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC37969  Spergularia salina Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  POM274921  Spiraea douglasii Lyman D. Benson 1929-7-15 1822 Humboldt Fortuna Bog near the sea. Comment
  HSC99553  Stachys ajugoides var. rigida K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 218 Humboldt Near North Trinity Mtn, 11. 5 mi E of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC668213  Stachys ajugoides var. rigida Joseph P. Tracy 1938-7-4 15987 B Humboldt Valley of South Yager Creek 762 Comment
  UCLA70873  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15969 Humboldt near Panther Gap (on road between Bull Creek to Mattole) 822 Comment
  UCLA70888  Stachys ajugoides var. rigida C. Epling, Wm. Robison 1935-7-25 Humboldt Dyerville Comment
  UC538019  Stachys arvensis Lyle W. Smith 1934-11-14 Humboldt Arcata Comment
  UCLA71491  Stachys arvensis L. W. Smith 1934-11-14 Humboldt Arcata Comment
  UC725501  Stachys chamissonis A. A. Heller 1923-7-9 13786 Humboldt between Eureka and Fortuna Comment
  SEINET10499253  Stachys chamissonis H. Lewis 1940-7-3 Lewis s.n. Humboldt Little river beach state park Comment
  HSC14416  Stachys mexicana D. E. Anderson 1961-8-11 1727 Humboldt E of Humboldt State College campus. 30 Comment
  HSC38476  Stachys rigida var. rigida Lon Hall 1975-6-20 392 Humboldt About 2 mi. N from Shelter Cove Rd. on Horse Mtn. Rd., along Bear Creek, from streamside up to unused dirt logging road above creek 488 Comment
  CAS-BOT-BC175347  Stellaria borealis subsp. sitchana Joseph P. Tracy 1935-5-24 13817 Humboldt Eureka 91 Comment
  SEINET200613  Stellaria borealis subsp. sitchana Joseph P. Tracy 27 Jun - 30 Jul 1908 2884 Humboldt Valley of Van Duzen River, opposite Buck Mountain. 762 Comment
  UC668079  Stellaria borealis subsp. sitchana Joseph P. Tracy 1937-7-17 15443 Humboldt near Field's Landing (Still Ranch) 6 Comment
  JEPS51121  Stellaria media Lincoln Constance 1934-5-31 754 Humboldt Bull Creek Flat South Fork Eel River, Bull Creek Region (along Bull Creek, from w boundary of park to Grasshopper Pk (Squaw Cr) rd, n side of creek) Comment
  HSC6231  Stephanomeria virgata Paul Shields 1955-9-25 Humboldt 17 mi. of Willow Creek Comment
  HSC58409  Stipa lemmonii Terry Griswold, Marvin Butler 1979-7-10 7124 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  HSC38490  Stipa nelsonii subsp. dorei D. E. Anderson, J. P. Smith 1971-6-18 - 1095 Humboldt Horse Mtn. Comment
  CAS-BOT-BC87609  Streptanthus tortuosus Doris Kildale Gillespie 1931-6-7 10597 Humboldt South Fork Mountain. Blake Lookout. 1726 Comment
  CDA25184  Streptanthus tortuosus var. tortuosus Kaylea Eickhoff, Cara M. Witte 2005-6-8 4 Humboldt Northwestern California; 1.7 miles south of Highway 299 on Titlow Hill Road. Comment
  HSC57137  Streptanthus tortuosus var. tortuosus Walter Overton, Marvin Butler 1979-7-25 9914 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  HSC57215  Streptanthus tortuosus var. tortuosus Terry Griswold, Marvin Butler 1979-7-12 7277 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC56070  Suksdorfia ranunculifolia G. L. Clifton, Griswold 1979-7-31 11737 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  CAS-BOT-BC269568  Symphoricarpos albus var. laevigatus Carl B. Wolf 1930-10-29 1782 Humboldt Old Coast Road at Honeydew Post Office 152 Comment
  CAS-BOT-BC269569  Symphoricarpos albus var. laevigatus Doris K. Kildale 1928-6-9 5085 Humboldt Eureka Comment
  RSA245237  Symphoricarpos albus var. laevigatus Tim Baroni 1971-7-6 112 Humboldt Appox. 2 miles S of Ferndale on Mattole road. Comment
  HSC102570  Symphoricarpos mollis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1557 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  CAS-BOT-BC99170  Symphyotrichum chilense Volney Rattan 1877-3-2 s.n. Humboldt Unspecified Comment
  HSC90472  Symphyotrichum chilense Jean Hanson 1980-8-28 125 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka. W end of island between dikes. Comment
  HSC102209  Symphyotrichum hendersonii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1124 Humboldt Andy's Camp 1564 Comment
  POM51379  Symphyotrichum hendersonii Joseph P. Tracy 1917-9-1 4836 Humboldt Murphy Meadow, Bald Mountain 1067 Comment
  JEPS35821  Symphyotrichum subspicatum Rimo Bacigalupi, and L. R. Heckard 1964-7-28 8966 Humboldt 9.5 mi n and w, s of Cape Mendocino Petrolia; Cape Mendocino Comment
  UC168958  Synthyris reniformis Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5749 Humboldt Trinity Summit; North Coast Ranges Comment
  CAS-BOT-BC376736  Tanacetum bipinnatum Ira L. Wiggins 1940-7-10 9484 Humboldt Big Lagoon Comment
  SD148217  Tanacetum camphoratum G. K. Helmkamp, E. A. Helmkamp 2001-7-8 7012 Humboldt Samoa Peninsula, 2.6 miles south of California 255 bridge across Humboldt Bay. 14 Comment
  RSA233223  Tanacetum camphoratum P. H. Raven 1962-8-31 18079 Humboldt Dry Lagoon State Park. Comment
  RSA93878  Tanacetum camphoratum F. W. Peirson 1923-7-11 3917 Humboldt 18 miles N. of Eureka Comment
  HSC79416  Taraxacum officinale Kenneth Clark 1980-3-1 507 Humboldt On access trail to Dead Man's Gulch 30 Comment
  UC144071  Taraxia ovata Joseph P. Tracy 1906-5-6 2433 Humboldt open places near Fortuna; Northern Coast Ranges 30 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
  UC902017  Thlaspi arvense Joseph P. Tracy 1949-7-9 18338 Humboldt near Freshwater Corners; near Freshwater Corners 30 Comment
  CAS-BOT-BC81307  Thuja plicata H. E. Parks 1932-7-25 01139 Humboldt Camp 21, Hammond Lumber Company, Trinidad 152 Comment
  NY17205  Thuja plicata A. Kellogg 1868-1 933 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  RSA1090  Thuja plicata E. R. Johnson 1928-8-26 1149 Humboldt 7 miles east of Arcata Comment
  SJSU124  Thuja plicata Emily D. Smith 1932-8-29 Humboldt near Korbel, about 10 miles east of Arcata Comment
  UC229825  Thysanocarpus curvipes Joseph P. Tracy 1922-4-30 6032 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, , Willow Creek 152 Comment
  UC11023  Thysanocarpus curvipes C. C. Marshall 1888-1 Humboldt Comment
  CAS-BOT-BC436904  Tiarella trifoliata var. unifoliata Mrs. E. C. Sutliffe 1927-6-1 s.n. Humboldt Bull Creek Comment
  SBBG70437  Tiarella trifoliata var. unifoliata R. Hartwell 1938-8-3 100 Humboldt Garden Club of America Redwood Grove, near Garberville Comment
  UC535760  Tiarella trifoliata var. unifoliata Eleanor Armstrong 1934-5-17 Humboldt Garden Club Grove 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
  HSC27852  Tolmiea diplomenziesii Clifton Raymond Chesbrough 1973-6-19 60 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  HSC20439  Tolmiea diplomenziesii F. B. Plett 1963-5-15 47 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  HSC34707  Torilis arvensis Thomas W. Nelson 1974-7-20 1698 Humboldt McKeown Ranch N of Dinsmore Comment
  POM332456  Torilis arvensis Thomas W. Nelson, Jane P. Nelson 1978-7-2 4387 Humboldt Along hwy 36 ca. 1 mile E of Grizzly Creek Comment
  JEPS63914  Toxicodendron diversilobum W. L. Jepson 1932-7-27 16430 Humboldt on way to Bull Creek Dyerville Comment
  UCR3932  Toxicodendron diversilobum David Whistler, H. M. Whistler 1964-7-29 640729- 7 Humboldt North Coast, US Hwy 101, along bank of Eel River, 0.2 mi. north of Weott 85 Comment
  HSC86487  Tracyina rostrata Tom Duebendorfer 1988-6-13 882 Humboldt N of Alderpoint, take Blocksburg Rd. N., 0.15 mi. E on Stewart Ranch Rd. 210 Comment
Read comments
May 18 2010
  SEINET8999606 Image available Trichostema lanceolatum Unknown 1934-8-19 13595 Humboldt TRINITY RIVER VALLEY, at Willow Creek 152 Comment
  JEPS63123  Trichostema lanceolatum W. L. Jepson 1921-9-11 9466 Humboldt DeVoy Flat, South Fork Eel River Comment
  RSA699238  Trichostema laxum J. R. Bruff 1937-8-17 930 Humboldt Richardson Grove, bed of Eel River. Comment
  UC16425  Trifolium barbigerum J. Burtt Davy 1899-6-17 5603 Humboldt Arcata Comment
  UC162784  Trifolium campestre J. P. Tracy 1906-6-25 2512 Humboldt immediate vicinity Eureka 0 Comment
  HSC71452  Trifolium campestre J. P. Smith 1973-5-26 6811 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC100529  Trifolium ciliolatum Carl C. Marshall Jun 1887 476 Humboldt Near Jewett Creek. Comment
  UC1197204  Trifolium ciliolatum Joseph P. Tracy 1911-7-11 3510 Humboldt Hoopa Valley Northern Coast Ranges 152 Comment
  UC1197490  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1932-6-26 10273 Humboldt Fort Baker Ranch Northern Coast Ranges 762 Comment
  HSC39836  Trifolium dubium Peter Sorensen 1976-6-11 Humboldt Woodley Island Comment
  UC162778  Trifolium dubium J. P. Tracy 1900-6-23 857 Humboldt immediate vicinity Eureka 0 Comment
  HSC77921  Trifolium dubium L. P. Janeway, Paul Wilson 1984-5-7 769 Humboldt On the N Spit of Humboldt Bay, on BLM lands near the Coast Guard Station 3 Comment
  UCD108880  Trifolium dubium W. A. Williams 1951-6-1 s.n. Humboldt Humboldt County. Comment
  UC1130015  Trifolium eriocephalum var. eriocephalum H. S. Yates 1936-6-17 5720 Humboldt Burr Valley South Fork Pk. quad 1036 Comment
Read comments
Feb 21 2013
  UC33413  Trifolium eriocephalum var. eriocephalum W. C. Blasdale 1896-6-7 Humboldt Mad River Comment
  HSC1864  Trifolium fucatum Elrid H. Spinas 1948-5-15 20 Humboldt Horse Mtn. Comment
  UC495735  Trifolium fucatum Joseph P. Tracy 1927-5-8 7992 Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  HSC29728  Trifolium fucatum J. D. Ackerman 1973-4-19 43 Humboldt Off Redwood Ave., Arcata Comment
  UC495645  Trifolium gracilentum Joseph P. Tracy 1932-4-24 9810 Humboldt betw Miranda and Redway (South Fork of Eel River); Northern Coast Ranges 91 Comment
  UC1197198  Trifolium gracilentum J. P. Tracy 1905-4-16 2162 1/2 Humboldt Ocean View Cemetary Eureka 0 Comment
  SEINET12148015  Trifolium howellii J. P. Tracy 1934-1 13449 Humboldt Grouse Mt 1524 Comment
  UC1541602  Trifolium longipes Harold E. Parks 1934-6-14 4784 Humboldt Horse Mtn 1432 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
  UC1197236  Trifolium macraei Joseph P. Tracy 1911-5-30 3204 Humboldt Bucksport Northern Coast Ranges, Humboldt Bay 0 Comment
  UC1223358  Trifolium macraei Joseph P. Tracy 1933-5-20 12222 Humboldt s point of cape (near ocean shore); Cape Mendocino 3 Comment
  HSC7238  Trifolium microcephalum J. R. Woodside 1963-5-19 2 Humboldt 1 1/4 mi. N of Fairhaven Comment
  SEINET12157235  Trifolium microdon J. P. Tracy 1936-1 14840 Humboldt nr Samoa, on Humboldt Bay 6 Comment
  SEINET4178759 Image available Trifolium obtusiflorum Unknown 1932-6-14 10153 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC77397  Trifolium repens C. J. Thomas 1983-5-9 30 Humboldt 23 Comment
  HSC89587  Trifolium repens M. Roantree 1985-5-24 62 Humboldt E side of Trinidad Head Comment
  HSC45131  Trifolium variegatum R. Sutherland 1978-6-1 3 .1678 Humboldt 213 Comment
  UC1103456  Trifolium variegatum var. variegatum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3588 Humboldt near Hydesville; Northern Coast Ranges Comment
  UC165539  Trifolium willdenovii Harley P. Chandler June 1901 1450 Humboldt Klamath River North Coast Ranges 304 Comment
  HSC45127  Trifolium willdenovii R. Sutherland 1978-5-19 9 .19578 Humboldt 131 Comment
  UCD109888  Trifolium willdenovii Tofsrud 1948-1 s.n. Humboldt location unknown. Comment
  HSC103842  Trifolium wormskioldii G. D. Barbe, T. C. Fuller 1974-6-17 1850 Humboldt Crescent City; Pebble Beach Rd., south of Airport and Washington Blvd. Comment
  RSA518825  Trifolium wormskioldii Joseph P. Tracy 1923-6-17 6274 Humboldt Big Lagoon 6 Comment
  UC1197039  Trifolium wormskioldii Joseph P. Tracy 1927-6-18 8174 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  UC1223510  Trifolium wormskioldii Joseph P. Tracy 1932-6-9 14882 Humboldt Bear River Ridge 609 Comment
  UC303196  Trifolium wormskioldii Joseph P. Tracy 1923-6-17 6273 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC62989  Triglochin maritima David Wheeler 1979-4-22 79 Humboldt Mad River Slough, 1 mi. W of the intersection of Mad River Rd. and Iverson Rd. Comment
  UCD170578  Triglochin maritima Gordon Leppig 1998-4-13 738 Humboldt Arcata, Arcata Marsh and Wildlife Sanctuary. 1 Comment
  UC667135  Trillium albidum Joseph P. Tracy 1933-5-21 12211 Humboldt McClellan Mt. 822 Comment
  HSC101798  Trillium albidum Kjirsten A. Wayman 2011-6-5 279 Humboldt Near Cold Spring camp, 7.4 mi. south of Hwy 299 on Titlow Hill Rd., N 40.82998 deg. W 123.71219 deg. 1408 Comment
  UC1197811  Trillium angustipetalum Mrs. Jennie Worthington 1931-3-22 Humboldt Weitchpec 121 Comment
  HSC15681  Trillium kurabayashii R. Spellenberg, D. Sutherland, A. Sylvester 1966-4-28 1383 Humboldt S side of Prairie Creek State Park Comment
  CAS-BOT-BC133396  Trillium ovatum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UC1197826  Trillium ovatum Joseph P. Tracy 1914-6-14 4509 Humboldt near Hydesville Hydesville; Northern Coast Region Comment
  UC275520  Trillium ovatum Joseph P. Tracy 1923-4-15 6186 Humboldt Redwood Creek at Berry's; Northern Coast Ranges, Redwood Creek 274 Comment
  HSC15702  Trillium ovatum K. P. St. John 1965-4-24 42 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  SEINET3888783  Trillium ovatum Michael Dalke 1979-3-31 8 Humboldt Eureka Quadrangle- Azalea Park 2 miles E of U.S. 101.; 0 24 Comment
  CAS-BOT-BC521317  Trillium rivale L. B. Kildale 1930-6-1 9770 Humboldt Klamath River at Bluff Creek 152 Comment
  JEPS26220  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1917-5-30 4805 Humboldt Little River Beach Northern Coast Ranges, Little River Beach (sand dunes) 6 Comment
  UC1198036  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1911-5-30 3207 Humboldt sandy fields at Bucksport (at Eureka); Northern Coast Region 0 Comment
  UC902255  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1944-5-14 17465 Humboldt at Bucksport (near Eureka); , at Bucksport 6 Comment
  HSC70581  Triphysaria pusilla Sue Sweet 1981-4-30 549 Humboldt Lanphere-Christensen Dunes Preserve, along trail N of weather station Comment
  UC162562  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1911-6-11 3237 Humboldt near Trinidad; Northern Coast Ranges, near Trinidad 60 Comment
  HSC102548  Trisetum canescens M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1536 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC1146668  Trisetum canescens Freed W. Hoffman 1949-7-15 3012 Humboldt e slope Mule Slide (Mt. Lassic area, a little s of Blue Ridge); North Coast Ranges, Mt. Lassic area Comment
  UC1714628  Trisetum canescens Joseph P. Tracy 1917-5-30 4788 Humboldt Dows Prairie; Northern Coast Ranges 60 Comment
  SEINET10605778  Trisetum canescens Joseph P. Tracy 1901-5-30 Tracy 1109 Humboldt At Eureka. Comment
  HSC40318  Trisetum cernuum Thomas W. Nelson, James Nelson 1976-7-28 3074 Humboldt Along small creek on the E side of old trail from lookout to Blocksburg. 1555 Comment
  UC1103152  Trisetum cernuum Joseph P. Tracy 1935-5-24 13813 Humboldt Eureka; Northern Coast Ranges 0 Comment
  UCD93909  Trisetum cernuum Joseph P. Tracy 1939-4-25 16223 Humboldt Bull Creek. 60 Comment
  HSC76431  Triteleia bridgesii Teresa Prendusi 1981-7-9 232 Humboldt Near Cedar Camp 1256 Comment
  HSC44764  Triteleia hyacinthina Maralyn O'Meara 1972-6-8 90 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  UC1197718  Triteleia laxa Joseph P. Tracy 1912-6-30 3710 Humboldt Eureka Northern Coast Ranges 0 Comment
  UCR32084  Triteleia laxa David J. Keil 1983-7-2 17340 Humboldt 2.8 mi south of SR 299 along Titlow Hill Rd., SW of Willow Creek 1098 Comment
  UC666895  Triteleia laxa Joseph P. Tracy 1932-6-26 10269 Humboldt high grassy ridges Fort Baker 762 Comment
  HSC28304  Tsuga heterophylla Gary S. Lester 1973-12-8 61 Humboldt E of HSC Campus Comment
  SDSU2008  Tsuga heterophylla D. F. Howe 1963-7-7 3616 Humboldt 5 miles north of Orick on #101. Comment
  UC63994  Tsuga heterophylla Mrs. M. H. Manning 1901-10-1 Humboldt near Hupa 762 Comment
  UCSB25251  Urtica dioica subsp. gracilis Tracy, Joseph 1927-3-6 Humboldt Elk River 30 Comment
  SEINET202729  Urtica dioica subsp. holosericea Joseph P. Tracy 1950-9-22 19369 Humboldt Klamath River, near Slate Creek. 8 miles below Orleans. 122 Comment
  CAS-BOT-BC193961  Vaccinium cespitosum Doris K. Kildale 1928-5-25 6039 Humboldt Foot of Third Street near drawbridge on Eureka Slough, Eureka Comment
  HSC90905  Vaccinium ovatum N. D. Dennis 1965-5-5 49 Humboldt 2 mi. N of Trinidad on Hwy. 101 Comment
  CAS-BOT-BC199413  Vaccinium parvifolium Carl B. Wolf 1930-10-26 1768 Humboldt Along the Redwood Highway 3 mi. so. of Del Norte Co. line 152 Comment
  HSC31487  Vaccinium parvifolium Steve Selva, Roger Jensen 1974-8-28 97 Humboldt Behind Humboldt State University, Arcata. Comment
  HSC91894  Vaccinium parvifolium E. Mackey 1986-10-24 Humboldt Patricks Point State Park Comment
  JEPS9372  Valeriana californica Joseph P. Tracy 1935-7-30 14381 Humboldt Salmon Summit 2103 Comment
  UC416771  Valeriana sitchensis subsp. sitchensis Mrs. M. H. Manning 1901-7-1 117 Humboldt Trinity Summit Comment
  UC302103  Vancouveria hexandra Joseph P. Tracy 1926-5-22 7513 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  CAS-BOT-BC76087  Vancouveria planipetala Ira L. Wiggins 1932-6-18 5865 Humboldt Along Jacoby Creek, 2 miles east of Bayside. Comment
  CAS-BOT-BC527424  Veratrum californicum L. B. Kildale 1930-7-11 10206 Humboldt Snow Camp. head of Redwood Creek Comment
  HSC27420  Verbena lasiostachys Thomas W. Nelson 1970-9-3 213 Humboldt Mad River. Comment
  HSC39719  Verbena lasiostachys D. E. Anderson, J. P. Smith 1971-6-28 - 1258 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC70356  Veronica americana M. A. Baker 1980-6-7 1865 Humboldt Near Ammon Creek 732 Comment
  JEPS26268  Veronica arvensis Joseph P. Tracy 1906-6-10 2482 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  SD42479  Veronica scutellata Carl B. Wolf 1937-6-18 8895 Humboldt 1/2 mi. so. of Fortuna 49 Comment
  HSC75486  Veronica serpyllifolia subsp. humifusa J. O. Sawyer 1980-7-18 3609 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  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
  HSC2102  Vicia americana var. americana Elrid H. Spinas 1948-6-16 54 Humboldt Horse Mtn. Comment
  HSC98838  Vicia americana var. americana Cara Witte 2008-7-16 914 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC1197479  Vicia americana var. americana Joseph P. Tracy 1936-3-29 14786 Humboldt between Miranda and Redway (South Fork of Eel River); North Coast Ranges, South Fork of Eel River 91 Comment
  UC162795  Vicia gigantea J. P. Tracy 1909-6-6 2986 Humboldt immediate vicinity of Eureka 0 Comment
  HSC100543  Vicia gigantea Carl C. Marshall May 1885 43 Humboldt Thickets everywhere. Comment
  HSC15262  Vicia hirsuta W. F. Nickel 1965-4-22 Humboldt N Arcata on E side of Hwy. 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
  SBBG67490  Vicia sativa subsp. nigra R. Hartwell 1938-8-6 121 Humboldt near Eureka Comment
  RSA750840  Vicia sativa subsp. sativa Robert F. Thorne, Percy C. Everett 1965-8-8 35242 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  RSA518642  Vicia tetrasperma Barbara Ertter, Thomas J. Delendick 1987-5-16 6912 Humboldt Hwy 299, ca 8 mi E of Arcata, 9.5 mi W of Lord Ellis summit. Comment
  CAS-BOT-BC263949  Viola adunca L. B. Kildale 1927-4-10 3084 Humboldt Big Lagoon Comment
  HSC21757  Viola adunca N. J. Cole, D. E. Anderson 1965-4-13 16 Humboldt 1.5 mi. SE of Maple Creek Rd. jct. with Bald Hills Rd., SE of Korbel Comment
  HSC21762  Viola adunca D. E. Anderson 1963-5-25 2492 Humboldt Ca. 2 mi. S of Capetown Comment
  CAS-BOT-BC263948  Viola adunca L. B. Kildale 1927-7-23 3788 Humboldt Hoaglin Lake near [Lass---s] Peaks 1524 Comment
  HSC89496  Viola adunca var. adunca P. A. Daly 1984-5-8 12 Humboldt Trinidad Head 61 Comment
  HSC98980  Viola adunca var. adunca Cara Witte 2007-6-13 250 Humboldt Near Buck Flat. Along creekbed that parallels 5N01. 1578 Comment
  HSC65883  Viola cuneata M. A. Baker 1980-6-16 1945 Humboldt Near Onion Mtn. 1280 Comment
  HSC45582  Viola cuneata Diane L. Reed 1978-5-27 124 Humboldt Horse Mtn., Titlow Hill Rd., 3.4 mi. from junction with S.R. 299 Comment
  HSC97583  Viola glabella Cara Witte 2007-5-23 100 Humboldt Near Grouse Mtn. Along 4N32. Approximately 0.5 mi. S of intersection with 5N04 and 4N32E. 1398 Comment
  UCR138885  Viola glabella E. Bower, S. Marubayashi, E. Perry 1997-5-10 53 Humboldt Titlow Hill Road, 1.5 mi past intersection with Hwy 299 975 Comment
  CAS-BOT-BC536495  Viola glabella Doris K. Kildale 1926-3-21 1593 Humboldt Lawrence Creek 609 Comment
  UC183742  Viola hallii Joseph P. Tracy 1913-6-17 4166 Humboldt near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1524 Comment
  UC66204  Viola ocellata Mrs. M. H. Manning June 1901 Humboldt near Hupa Comment
  CAS-BOT-BC270153  Viola palustris M. Louise Hutchinson 1913-5-1 s.n. Humboldt Eureka Comment
  UC1222513  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1951-5-20 19403 Humboldt near Kneeland School House Comment
  HSC32282  Viola purpurea subsp. purpurea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5615 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC23603  Viola sempervirens J. O. Sawyer 1971-6-14 2375 Humboldt Above E fork of Horse Linto Creek 1494 Comment
  HSC42197  Viola sempervirens Ed Cope 1977-4-23 23 Humboldt 2.5 mi. S of Shelter Cove Rd. South Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC95737  Viola sempervirens Steven Lee 2004-2-18 1 Humboldt Arcata Community Forest, Jolly Giant Creek; 5-20 ft. from water's edge Comment
  UC164805  Viola sempervirens Joseph P. Tracy 1904-4-3 2006 Humboldt Eureka; Northern Coast Region, Eureka 0 Comment
  RSA244947  Viola sempervirens Norman Dennis 1965-5-8 55 Humboldt 0.1 mile west of Lord Ellis Summit on Hwy 299. Comment
  HSC23625  Viola sheltonii J. O. Sawyer 1971-6-14 2377 Humboldt Above E fork of Horse Linto Creek 1494 Comment
  UC1198442  Viola sheltonii Joseph P. Tracy 1935-7-24 14167 Humboldt near Corral Prairie (Trinity Summit); Trinity Summit 1584 Comment
  CAS-BOT-BC203048  Vitis californica Henry M. Pollard 1945-9-4 s.n. Humboldt Near Camp Creek, Klamath River Canyon Comment
  CAS-BOT-BC203049  Vitis californica Doris K. Kildale 1928-6-17 5236 Humboldt Miranda, south fork of Eel River Comment
  HSC40949  Vulpia bromoides Linda M. Barker 1976-6-1 1543 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC69872  Vulpia bromoides Thomas W. Nelson 1978-5-29 4094 Humboldt On McKeown Ranch N of Dinsmore. 762 Comment
  HSC9825  Vulpia bromoides E. W. Styskel 1964-4-3 57 Humboldt 0.25 mi. S of Garberville along Sprowl Creek Rd. Comment
  CAS-BOT-BC183940  Vulpia microstachys var. microstachys Doris Kildale Gillespie 1931-6-7 10605 Humboldt South Fork Mt. Black Lookout 1726 Comment
  RSA121356  Vulpia microstachys var. pauciflora H. L. Person 1932-5-11 s.n. Humboldt Near Arcata 0 Comment
  SEINET200330 Image available Vulpia microstachys var. pauciflora Joeseph P. Tracy 4463 Humboldt Fort Seward 122 Comment
  UC1145190  Vulpia microstachys var. pauciflora Joseph P. Tracy 1936-5-29 14825 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  UCD94574  Vulpia microstachys var. pauciflora A. H. Murphy 1951-6-1 55 Humboldt about 2 miles east of Low Gap, on the Mad River drainage. Comment
  HSC70350  Vulpia myuros M. A. Baker 1980-6-7 1810 Humboldt Near Brush Mtn. 1128 Comment
  HSC71646  Vulpia myuros J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9930 Humboldt Ishi Pishi Rd., 2.5 mi. from its junction with Hwy. 96 in Orleans 213 Comment
  RSA10060  Vulpia myuros var. hirsuta Joseph P. Tracy 1925-5-17 6968 Humboldt Trinity River Valley, near the South Fork. 183 Comment
  SBBG2858  Whipplea modesta H. and M. Dearing 1933-5-16 1242 Humboldt near Weott Comment
  UC1561376  Whipplea modesta Barbara Ertter with Thomas J. Delendick 1987-5-16 6943 Humboldt on s side of road above Willow Creek (Hwy 299 ca 3 mi e of Berry Summit, ca 20 air mi e of Arcata) 800 Comment
  UCD117288  Whipplea modesta K. Esau 1934-5-8 s.n. Humboldt Redwood Highway, near Scotia. Comment
  HSC28932  Woodwardia fimbriata Diane Johnson 1972-12-4 Humboldt Butler Valley near Big Bend Rd. Comment
  UC128618  Wyethia angustifolia P. E. Goddard Jul 1910 Humboldt Hupa Valley Comment
  POM192569  Wyethia longicaulis H. E. Parks 1930-05 0740 Humboldt Laribee Valley Comment
  UC1541467  Wyethia longicaulis H. E. and S. T. Parks May 1930 740 Humboldt Laribee Valley Comment
  UC1134688  Xerophyllum tenax A. E. Wieslander 1931-5-19 208 Humboldt near Orleans (Klamath National Forest); Klamath National Forest Comment
  UCD139956  Xerophyllum tenax Joseph P. Tracy 1947-7-9 17862 Humboldt Horse Mountain. 1432 Comment
  HSC67968  Zeltnera muehlenbergii J. P. Smith 1973-5-26 6860 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC8416  Zeltnera muehlenbergii Lincoln Constance 1934-6-4 820 Humboldt Look Prairie and Bull Creek Rd. to Dyerville, South Fork of Eel River Comment
  HSC95187  Zostera japonica Gordon Leppig 2002-7-8 1782 Humboldt Indian Island, SW shore 0 Comment
  HSC104124  Zostera marina Justin Garwood 2015-7-5 Humboldt Comment
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Mar 1 2018
  HSC93950  Zostera marina F. J. Shaughnessy 1999-6-14 Humboldt Arcata Marsh and Wildlife Sanctuary, Humboldt Bay, Fields Landing Comment



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