Search Results — 2000 specimen records retrieved (1362 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
  RSA54126  Abies concolor Henry M. Pollard 1944-09 s.n. Humboldt Near Orleans. Comment
Read comments
Oct 1 2019
  CAS-BOT-BC78053  Abies grandis W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  HSC1343  Abies grandis Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  HSC59462  Abronia latifolia M. A. Ericksen 1979-5-18 295 Humboldt Samoa Dunes, .5 mi. S of Simpson Timber Company plant entrance Comment
  HSC16130  Abronia latifolia I. L. Wiggins 1932-7-19 5888 Humboldt Near Clam Beach, 8 mi. N of Arcata Comment
  SEINET946033  Abronia latifolia Kai Neander, Gordon Leppig, Sylvia Leppig 1998-1 746 Humboldt Dry Lagoon State Park. Comment
  CAS-BOT-BC330545  Acer circinatum Joseph P. Tracy 1933-5-21 12213 Humboldt McClellan Mt., 5 miles E. of Bridgeville 670 Comment
  HSC27877  Acer circinatum Clifton Raymond Chesbrough 1973-6-19 75 Humboldt 0.25 mi. from Harris and T Sts. on U St. Comment
  RSA2926  Acer circinatum Carl B. Wolf 1931-8-29 2368 Humboldt 3 miles north of Orick, Davidsons Ranch on Prairie Creek 61 Comment
  UC668176  Acer circinatum Joseph P. Tracy 1935-5-26 13911 Humboldt Lawrence Creek at crossing of the Kneeland Road; Lawrence Creek 457 Comment
  UC668177  Acer circinatum Joseph P. Tracy 1933-5-21 12213 Humboldt 5 mi e Bridgeville (McClellan Mountain); McClellan Mountain 670 Comment
  UC205485  Acer glabrum var. glabrum Joseph P. Tracy 1919-9-23 5291 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  HSC37367  Acer macrophyllum Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 501 Humboldt Along Lost Man Creek. 38 Comment
  HSC95908  Acer macrophyllum Will Ferrand 2002-4-20 25 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  HSC37962  Achillea millefolium Peter Sorensen 1976-6-12 Humboldt Woodley Island Comment
  HSC89470  Achillea millefolium P. A. Daly 1986-3-12 97 Humboldt Trinidad Head, along trail 61 Comment
  SBBG52982  Achillea millefolium J. D. Hobson -Jul-1966 Humboldt Eureka Harbor, Loleta, 10 mi S of Eureka Comment
  BLMAR672  Achillea millefolium Jennifer Wheeler 2013-6-7 672 Humboldt King range, Windy Point 80 Comment
  RSA416222  Achillea millefolium J. P. Smith, Thomas W. Nelson 1977-6-30 9221 Humboldt Samoa Peninsula just east of the drag strip. Comment
  UC1196354  Achlys californica Joseph P. Tracy 1933-7-11 12692 Humboldt Grouse Mt. North Coast Ranges, Grouse Mt. 1524 Comment
  HSC31126  Achlys triphylla J. O. Sawyer 1970-6-24 2261 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  HSC3337  Achlys triphylla J. F. Knezevich 1968-5-21 445 Humboldt 20 mi. E of Arcata on Hwy. 299 at Lord Ellis Summit Comment
  HSC3338  Achlys triphylla D. E. Anderson 1965-5-1 3575 Humboldt 4-5 mi. W of junction Bluff Creek Rd. and Hwy. 96, along Bluff Creek Rd. Comment
  HSC56973  Achlys triphylla Overton, Butler 1979-7-23 9506 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC3340  Achlys triphylla Lincoln Constance 1934-6-1 773 Humboldt S Fork Eel River, Bull Creek Rd. between Dyerville Bridge and Bull Creek Flat Grove. 46 Comment
  CAS-BOT-BC210653  Achnatherum lemmonii Joseph P. Tracy 1928-6-24 8466 Humboldt Valley of South Yager Creek 762 Comment
  SEINET5585534 Image available Achnatherum lemmonii Joseph P. Tracy 1950-1 18787 Humboldt Mail Ridge, north of Harris 7 miles 1036 Comment
  SEINET5585535 Image available Achnatherum lemmonii Joseph P. Tracy 1938-1 15968 Humboldt Panther Gap, on the road from Bull Creek to upper Mattole 823 Comment
  UC1103144  Achnatherum lemmonii J. P. Tracy 1903-5-23 1905 Humboldt Alder Point Eel River 91 Comment
  UC1565800  Achnatherum lemmonii R. Spellenberg 1990-7-10 10248 Humboldt 6 mi s on USFS 1 Berry Summit (on Calif. Hwy. 299) (8 mi wsw of Salyer) 1371 Comment
  UC60151  Achnatherum lemmonii J. Burtt Davy 1899-6-8 5348 Humboldt Bell Springs North Coast Ranges, Bell Springs Comment
  UCD50691  Achnatherum lemmonii A. H. Murphy 1951-6-25 74 Humboldt About 1 mile W of Board Camp Mtn. Ca. 16 miles NE of Bridgeville. Comment
  UCD50710  Achnatherum lemmonii G. L. Stebbins Jr.; G. L. Church 1941-5-27 3117 Humboldt 10.3 miles west of Dinsmore's, on road to Bridgeville. Humboldt County. Comment
  HSC45096  Acmispon micranthus R. Sutherland 1978-5-13 3 .13578 Humboldt Mattole River. 282 Comment
  HSC90752  Acmispon micranthus Gail Newton 1982-5-5 2537 Humboldt Elk River Wildlife Area, Eureka. Comment
  HSC33760  Acmispon micranthus A. Montalvo 1975-5-24 276 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  RSA20784  Aconitum columbianum Carl B. Wolf 1937-8-13 9249 Humboldt North coast range, 11 mi. E. of Hoopa Valley on new road toward Trinity Summit. 1524 Comment
  HSC48684  Aconitum columbianum subsp. columbianum Brad Klipfel 1973-7-31 238 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  SEINET12094122  Actaea rubra F. H. Utech 1988-1 88 -268 Humboldt 14 mi W of Bridgeville enroute to Carlotta on CA 36, Van Duzen County Park, Pamplin Grove 50 Comment
  HSC33657  Adiantum aleuticum M. Wetherwax 1975-6-1 173 Humboldt Next to Simpson Cr. Comment
  UC197917  Adiantum aleuticum Joseph P. Tracy 1907-8-20 2604 Humboldt Hydesville; Northern Coast Region 30 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
  HSC58167  Agastache urticifolia G. L. Clifton, Griswold 1979-8-2 12237 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC102242  Ageratina occidentalis Sydney Carothers 2011-9-17 Humboldt Bret Hole; 1.1 km SW of Trinity Summit 1579 Comment
  UC582758  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1929-7-4 8621 Humboldt French Camp Ridge French Camp Ridge 1066 Comment
  UCD128605  Agoseris heterophylla K. Esau 1934-5-6 s.n. Humboldt above Fort Seward. 457 Comment
  UC302295  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1926-6-27 7688 Humboldt Horse Mountain; Northern Coast Ranges 1524 Comment
  UC582745  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1930-6-21 8775 D Humboldt Larrabee Valley; Northern Coast Ranges 701 Comment
  UC249882  Agoseris retrorsa Joseph P. Tracy 1923-6-3 6256 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  SACT000115  Agrostis alba var. palustris D. Shillingbury 1963-5-11 Humboldt salt or brackish marshes along the coast. bog edge Comment
  CAS-BOT-BC127293  Agrostis exarata H. E. Parks 1935-6-1 5607 Humboldt Spruce Cove, Trinidad. Comment
  HSC8785  Agrostis exarata D. E. Anderson 1961-8-25 1743 Humboldt Beach area 1.5 miles S of Trinidad. Comment
  JEPS75411  Agrostis exarata W. L. Jepson 1932-7-24 16380 Humboldt near Camp Grant; Eel River 91 Comment
  UC184873  Agrostis exarata Joseph P. Tracy 1912-7-31 3892 Humboldt Burr Valley, on nw slope of Buck Mountain, stream bank Northern Coast Ranges, Burr Valley, Buck Mountain 1066 Comment
  UC292580  Agrostis exarata H. E. Parks 8302 Humboldt 100 Comment
  UCD52437  Agrostis exarata P. B. Kennedy 1923-8-5 s.n. Humboldt west forst of Eel River, between Phillipsville and Garberville. Comment
  UCSB51224  Agrostis exarata Almanza, Ed 1976-7-15 Humboldt Big Lagoon Campground, Big Lagoon Comment
  RSA293142  Agrostis gigantea Thomas W. Nelson, James Nelson 1976-7-28 3046 Humboldt West of Alder Springs along 2S08 1555 Comment
  RSA293101  Agrostis hallii J. P. Smith 1977-7-3 9257 Humboldt Six Rivers National Forest. Along Forest Service Road 13N01, 3 miles from its junction with Hwy. 36 549 Comment
Read comments
Nov 3 2011
  SEINET3916558  Agrostis hallii James Payne Smith Jr 1977-7-3 9257 Humboldt Six River National Forest. Along Forest Service Road 13NO1, 3 miles from its junction with State Route 36.; 0 549 Comment
  UC526882  Agrostis hallii Joseph P. Tracy 1930-6-29 8812 Humboldt nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  UCD52685  Agrostis hallii H. S. Yates 1936-6-18 5728 Humboldt Near mouth of Litter River. 4 Comment
  UCD52793  Agrostis idahoensis A. H. Murphy 1951-8-17 89 Humboldt Humboldt - Trinity County Line: Racetrack Springs, South Fork Mtn., 15 miles northeast of Bridgeville. 1219 Comment
  HSC8803  Agrostis microphylla D. E. Anderson 1963-10-6 2883 Humboldt Mad River bars, across from Essex Junction. Comment
  HSC38381  Agrostis oregonensis Peter Sorensen 1976-8-8 Humboldt King Salmon Comment
  UCD53093  Agrostis pallens P. B. Kennedy 1928-7-16 306 Humboldt Sea Cliffs, near Trinidad. Comment
  UCD53520  Agrostis stolonifera Lee Berry 1956-6-20 s.n. Humboldt May Ranch, Bridgeville. Comment
  HSC8855  Aira caryophyllea N. R. Waite 1965-5-19 41 Humboldt W edge of Humboldt State University campus. Comment
  HSC8861  Aira caryophyllea unknown May 1933 4003 Humboldt Spruce Cove, Trinidad Comment
  UC1103306  Aira caryophyllea Joseph P. Tracy 1933-6-6 12502 Humboldt Trinidad Northern Coast Region (on bluff facing ocean) 60 Comment
  UC1541566  Aira caryophyllea Harold E. Parks May 1933 4304 Humboldt Spruce Cove Trinidad Comment
  SEINET5335998  Aira caryophyllea W. D. Billings 1940-6-28 1353 Humboldt 1/4 mi. N of Trinidad Comment
  JEPS15036  Allium bolanderi Harley P. Chandler June, 1901 1434 Humboldt Klamath River North Coast Ranges, Klamath River 243 Comment
  CAS-BOT-BC462972  Allium bolanderi Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC73663  Allium campanulatum M. A. Baker 1980-7-15 2974 Humboldt Near Whiting Ridge. 1341 Comment
  HSC32146  Allium falcifolium D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5600 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC74089  Allium falcifolium Gail Newton 1980-6-28 679 Humboldt Near Mad River Butte 1536 Comment
  UCR45835  Allium falcifolium Thomas W. Nelson 1977-6-15 3446 Humboldt North Coast Range, [Horse Mountain] along old road to ski area 1372 Comment
  UCD138543  Allium hoffmanii Marc Baker 1980-7-11 2799 Humboldt near Red Mountain. 225 Comment
  RSA167424  Allium unifolium Joseph P. Tracy 1950-6-25 18890 Humboldt Burr Valley. Comment
  UC666924  Allium unifolium Joseph P. Tracy 1928-5-20 8437 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  UC666889  Allium validum Joseph P. Tracy 1932-7-13 10515 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  HSC100400  Allocarya californica Carl C. Marshall 463 Humboldt Road between Harris and Garberville. Comment
  CAS-BOT-BC453426  Allotropa virgata Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UC1197756  Allotropa virgata Arthur E. Connick 1926-5-1 Humboldt between Hoopa and Willow Creek (Northern Coast Ranges, Sugar Bowl Mountain); Northern Coast Ranges, Sugar Bowl Mountain 304 Comment
  UC412886  Allotropa virgata Mrs. M. H. Manning 1901-1 Humboldt Hupa Comment
  UC502990  Alnus incana subsp. tenuifolia Joseph P. Tracy 1927-8-22 8335 Humboldt in meadow near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  CHSC130  Alnus rubra A. Small 1953-4-1 Humboldt Near Ferndale. Comment
  HSC12852  Alnus rubra C. E. Fellows 1970-11-28 318 Humboldt Arcata, HSC Campus, SW of science building Comment
  HSC3435  Alnus rubra Francis Winter 1960-3-26 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  OBI35881  Alnus rubra David J. Keil 1983-7-1 17290 Humboldt Between Ferndale and Bear River Ridge rd along Mattole Rd Comment
  POM212075  Alnus rubra C. B. Wolf 1930-10-26 1967 Humboldt south edge of Big Lagoon, near the Redwood highway bridge. 3 Comment
  SBBG89139  Alnus rubra A. Keedy 1988-9-28 15 Humboldt Alder Grove Rd near Hwy 299, N of Arcata Comment
  UC1135151  Alnus rubra H. S. Yates 1936-6-23 5865 Humboldt 1 mi s of Loleta; California Forest Experiment Station 30 Comment
  UCR142775  Alnus rubra H. E. Parks, S. T. Parks 1938-4-1 24126 Humboldt North Coast, Spruce Cove, Trinidad 61 Comment
  RSA46662  Alnus viridis subsp. sinuata Doris K. Kildale 1937-9-26 15377 Humboldt Snow Camp. Comment
  UC526743  Alopecurus aequalis Joseph P. Tracy 1927-7-17 8269 Humboldt w. foothills of Chaparral Mt. (Three Cabins); Northern Coast Ranges, w. foothills of Chaparral Mt., Three 457 Comment
  CAS-BOT-BC138145  Alopecurus aequalis var. aequalis Doris K. Kildale 1927-7-23 3801 Humboldt Hoaglin Lake. Near Lasseck's Peaks. Comment
  UC1145047  Alopecurus geniculatus Joseph P. Tracy 1938-7-15 16063 Humboldt mouth of Elk R. near Eureka 6 Comment
  CAS-BOT-BC142882  Amelanchier alnifolia var. semiintegrifolia Doris K. Kildale 1926-6-27 2225 Humboldt Little Van Duzen River on Weaverville-Bridgeville Road 640 Comment
  CAS-BOT-BC142886  Amelanchier alnifolia var. semiintegrifolia Doris K. Kildale 1927-5-13 3135 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC143013  Amelanchier utahensis Barry Silver 1986-4-23 536 Humboldt Bair Road, 10 miles nw. of junction with Highway 299; Pine Ridge Summit area 996 Comment
  CDA18243  Ammophila arenaria G. D. Barbe, T. C. Fuller 1974-6-19 1881 Humboldt North Coast Ranges; Mad River mouth, beach S of river, at end of Iversen Lane, Tyee City. 7 Comment
  CHSC33078  Ammophila arenaria J. P. Smith; T. W. Nelson 1977-6-30 9201 Humboldt Samoa Peninsula just east of the drag strip. Comment
  HSC8845  Ammophila arenaria J. A. Waller 1965-5-18 23 Humboldt Samoa Comment
  UC1103317  Ammophila arenaria Joseph P. Tracy 1947-7-3 17767 Humboldt sand dunes at mouth of Little R. 6 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
  CAS-BOT-BC213954  Amsinckia H. E. Parks; J. P. Tracy 1930-5-25 881 Humboldt Near Bridgeville. Comment
  RSA0089915  Amsinckia menziesii H. E. Parks 1933-03 4282 Humboldt Trinidad. Comment
  HSC17831  Anagallis arvensis D. B. Bader 1963-3-1 7 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101. Comment
  CAS-BOT-BC391777  Anemone deltoidea Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC37344  Anemone deltoidea Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 476 Humboldt Along Lost Man Creek. 38 Comment
  HSC98600  Anemone deltoidea Cara Witte 2008-6-15 736 Humboldt Along National Forest 1. 3 miles north from intersection with Forest Service Road 6N01B. 1456 Comment
  HSC41236  Anemone oregana var. oregana Brad Klipfel 1974-5-8 327 Humboldt Horse Mtn., to the NW below the towers Comment
  JEPS16070  Angelica hendersonii W. L. Jepson 1902-8-3 2133 Humboldt Loleta, Expedition from Ukiah to the Hupa Indian Reservation Loleta 60 Comment
  JEPS16071  Angelica hendersonii Joseph P. Tracy 1923-9-23 6560 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  UCD127226  Angelica hendersonii Joseph DiTomaso 1980-6-29 1634 Humboldt north side of Elkshead. 2 miles north of Trinidad. Comment
  CHSC68551  Angelica lucida Vernon H. Oswald 1997-4-29 8354 Humboldt Humboldt Bay NWR, Hookton Slough Trail along levee along the south side of Hookton Sough. 0 Comment
  HSC101671  Angelica tomentosa Cara Witte 2008-8-6 999 Humboldt Board Camp Mountain; 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 Comment
  UCD127179  Angelica tomentosa Joseph DiTomaso 1980-8-15 1864 Humboldt 5 miles west of Willow Creek at 34.4 mile road mark on Highway 299. Comment
  CAS-BOT-BC94796  Anisocarpus madioides R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 835 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air mi. N of Mattole Road & 3 air mi. W of Hwy 101. 243 Comment
  UC485304  Anisocarpus madioides J. P. Tracy 1903-5-24 1909 Humboldt Alder Point 304 Comment
  CAS-BOT-BC69103  Antennaria media Joseph P. Tracy 1935-7-24 14202 Humboldt Trinity Summit. Near ranger station. 1828 Comment
  JEPS89480  Antennaria suffrutescens Dean W. Taylor 1991-8-15 12303 Humboldt ridge 1 mi. w. Horse Mt.; N. Coast Ranges 1493 Comment
  HSC39951  Anthoxanthum occidentale Linda M. Barker 1976-2-22 1312 Humboldt 3 mi. W of Arcata Comment
  HSC8929  Anthoxanthum odoratum True Hoyle 1967-7-24 29667 Humboldt Oscar Stapp Ranch near Showers Creek and Showers Pass 1006 Comment
  HSC8943  Anthoxanthum odoratum R. V. Papike 1962-5-25 31 Humboldt Above Humboldt State University campus 91 Comment
  HSC8953  Anthoxanthum odoratum D. E. Anderson 1962-3-31 1957 Humboldt Coastal area of Prairie Creek State Park, back of sand dunes Comment
  UC1103319  Anthoxanthum odoratum J. P. Tracy 1899-5-24 318 Humboldt immediate vicinity of Eureka 0 Comment
  UC1103320  Anthoxanthum odoratum Joseph P. Tracy 1926-4-17 7412 Humboldt Northern Coast Ranges, Eurek Eureka; Northern Coast Ranges, Eureka 0 Comment
  RSA33406  Antirrhinum vexillocalyculatum subsp. breweri Doris K. Kildale 1928-10-19 6953 Humboldt Miranda. Comment
  RSA371546  Antirrhinum vexillocalyculatum subsp. breweri David M. Thompson 1983-6-30 360 Humboldt Orleans vicinity. 40 ft. N of the southern junction of Cedar Camp Road and Hwy. 96. 183 Comment
  UCD143195  Aphanes occidentalis Linda M. Barker 1976-4-30 1413 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC57897  Apocynum androsaemifolium Overton, Butler 1979-7-31 11477 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  UC213319  Apocynum androsaemifolium Joseph P. Tracy 1919-9-23 5280 1/2 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  HSC97916  Apocynum androsaemifolium Cara Witte 2007-6-14 289 Humboldt Along National Forest 1, on Kinsey Ridge, 2 mi. N of White Oak Opening 1243 Comment
  UC1197617  Apocynum androsaemifolium Joseph P. Tracy 1911-7-12 3518 Humboldt along rd. between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 762 Comment
  RSA43832  Apocynum androsaemifolium subsp. pumilum H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1372 Comment
  RSA21323  Apocynum pumilum var. rhomboideum C. B. Wolf 1937-8-13 s.n. Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  CAS-BOT-BC392159  Aquilegia formosa J. O. Sawyer; R. J. Cole 1977-7-3 3006 Humboldt Environs of Mud Spring. Big Hill Road (F.S. 8N01) 1524 Comment
  HSC56137  Aquilegia formosa var. truncata G. L. Clifton, Griswold 1979-8-1 11957 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UC552301  Arabidopsis thaliana Joseph P. Tracy 1935-4-20 13788 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC40232  Arabidopsis thaliana J. P. Smith, J. O. Sawyer 1976-5-2 8626 Humboldt 3.96 mi. N of junction with Hwy. 299 on Hwy. 96 Comment
  HSC70390  Arabis breweri var. breweri Gail Newton 1980-6-7 140 Humboldt Near Brush Mtn. 1128 Comment
  HSC75964  Arabis glabra Walter Overton, Butler 1979-8-2 12585 Humboldt Near Bret Hole, close to the town of Hoopa. 1554 Comment
  UC492237  Arabis glabra Joseph P. Tracy 1932-5-1 9860 Humboldt Redway Northern Coast Ranges 152 Comment
  HSC75495  Arabis holboellii var. retrofracta J. O. Sawyer 1980-7-18 3637 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC3249  Aralia californica H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  CAS-BOT-BC128695  Arbutus menziesii Doris K. Kildale 1927-5-7 3109 Humboldt Elk Ridge near Eel Rock Comment
  HSC49044  Arbutus menziesii Patricia Shesgreen 1978-5-6 69 Humboldt Arthur W. Way Memorial Park campground. 100 yds. N of Mattole River. Comment
  POM367168  Arbutus menziesii N. R. Zabriskie, Walter Zabriskie, J. Zabriskie 1968-8-22 151 Humboldt East of Honeydew on road from Humboldt State Park to Cape Mendocino. 915 Comment
  UC585941  Arctostaphylos Joseph P. Tracy 1935-6-23 13991 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  HSC7606  Arctostaphylos canescens Paul Shields May 1955 Humboldt 2 mi. N of Willow Creek Comment
  CAS-BOT-BC24095  Arctostaphylos canescens subsp. canescens Doris K. Kildale 1926-8-15 2542 Humboldt Hoopa Mountain 792 Comment
  CAS-BOT-BC23757  Arctostaphylos columbiana Alice Eastwood 1907-4-21 12 Humboldt Trinidad Comment
  CAS-BOT-BC23778  Arctostaphylos columbiana P. C. Everett; E. K. Balls 1959-10-26 23975 Humboldt 4 mi. SE from Honeydew, along Old Coast road to Ettersburg. 457 Comment
  CAS-BOT-BC23823  Arctostaphylos columbiana Carl B. Wolf 1927-8-30 1241 Humboldt Paradise, 5 or 6 mi. no. of Ettersburg. Comment
  JEPS38963  Arctostaphylos columbiana Joseph P. Tracy 1935-2-9 13710 Humboldt Big Lagoon 3 Comment
  SBBG83934  Arctostaphylos columbiana R. Gankin, W. R. Hildreth 1967-10-26 1168 Humboldt 20 rd mi E of US Hwy 101 on Bald Hills Rd (from Orick) Comment
  UC726576  Arctostaphylos columbiana A. A. Heller 1937-6-12 15918 Humboldt along road paralleling the ocean Bishop Pine Lodge (3 mi n of Trinidad) Comment
  UC876392  Arctostaphylos columbiana J. E. Adams 1935-5-12 1047 Humboldt Patrick's Point Comment
  RSA12449  Arctostaphylos columbiana var. columbiana C. B. Wolf 1934-6-30 5844 Humboldt 5 1/2 mi. from Shelter Cove on rd. to Briceland. 152 Comment
  HSC100245  Arctostaphylos densiflora J. P. Smith, J. O. Sawyer 2010-5-2 12794 Humboldt Along Hwy. 96, E of Orleans 244 Comment
  HSC7633  Arctostaphylos glandulosa J. Pursell 1964-10-18 10185 Humboldt 5 mi. from Hwy. 299 on Bald Mtn. Road Comment
  RSA632788  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27792 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  RSA632796  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27781 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  HSC71673  Arctostaphylos manzanita M. A. Baker 1980-6-26 2386 Humboldt Near Sims Creek 610 Comment
  UCD19961  Arctostaphylos manzanita C. H. Lamoureux; R. Gankin 1956-3-18 1046 Humboldt 2 miles east of Dinsmore, on Hwy 36. Comment
  JEPS38938  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1933-4-2 10949 Humboldt Willow Creek Trinity River Valley 152 Comment
  POM367342  Arctostaphylos manzanita subsp. manzanita Thomas W. Nelson, Jane Nelson, A. Nelson 1976-2-21 2253 Humboldt Tish-Tang Campground. Comment
  CHSC85573  Arctostaphylos nevadensis L. P. Janeway 2003-7-30 7949 Humboldt High North Coast Ranges. Along Friday Ridge Road, at south end of Friday Ridge, 1.0 km (air) east-southeast of Friday Camp. Roadside. 1359 Comment
  HSC44397  Arctostaphylos nevadensis Brad Klipfel 1975-5-24 631 Humboldt Horse Mtn. Comment
  JEPS38982  Arctostaphylos nevadensis Joseph P. Tracy 1935-7-30 14370 Humboldt Salmon Summit 1950 Comment
  SEINET11989092  Arctostaphylos nevadensis subsp. knightii R. Gankin, Hildreth, W. R. 1967-1 1174 Humboldt 21.4 mi E of US 101 on Bald Hills Rd from Orick, French Camp Ridge Comment
  HSC98732  Arctostaphylos patula Cara Witte 2008-7-2 817 Humboldt Board Camp Mountain. Road to Tri Board Camp. Forest Service Road 4N38. 1574 Comment
  HSC99103  Arctostaphylos patula Cara Witte 2008-8-6 1019 Humboldt Along National Forest 1, on Kinsey Ridge. North of White Oak Opening. 1246 Comment
  CAS-BOT-BC47211  Arctostaphylos uva-ursi Josh Suchocki; Charlene Vullo; Kyle Wear 1995-4-15 101 Humboldt Manila. Comment
  UCD52152  Arctostaphylos uva-ursi Roman Gankin; W. R. Hildreth 1967-10-24 1148 Humboldt Comment
  HSC8975  Aristida oligantha J. P. Tracy 1933-8-27 13000 Humboldt Vicinity of Garberville, Robertson's Range 122 Comment
  HSC32042  Armeria maritima subsp. californica J. D. Ackerman 1974-5-25 267 Humboldt About 0.25 mi. S of Lufenholtz Co. Beach, off Scenic Dr. between Trinidad and Moonstone Beach. Comment
  HSC40932  Armeria maritima subsp. californica Linda M. Barker 1976-6-1 1553 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC59096  Armeria maritima subsp. californica Clark L. Miller 1979-5-24 2150 Humboldt Samoa Dunes off Samoa Blvd. Comment
  CAS-BOT-BC82102  Arnica cernua Joseph P. Tracy 1938-6-13 15902 Humboldt Horse Mountain 1432 Comment
  HSC48988  Arnica discoidea M. A. Baker 1979-5-25 763 Humboldt Comment
  SEINET10475267  Arnica discoidea var. alata Mary Susan Taylor 1980-6-11 Taylor 2842 Humboldt Gray Falls Campground, Six Rivers Natl Forest, on W side of Rd 6N56 to foot bridge, on N side of Hwy 299, ca. 2 mi NW of Burnt Ranch. 274 Comment
  JEPS37015  Artemisia dracunculus W. L. Jepson 1921-9-11 9464 Humboldt 7 or 8 mi. s. Garberville (not far from Indian Creek (Devoy Flat) Redwood Flat, w. of S. Fork Eel); South Fork Eel River Comment
  POM264517  Artemisia pycnocephala H. E. Parks 1941-08 24186 Humboldt Little River State Park Comment
  SEINET201066  Artemisia suksdorfii Joseph P. Tracy 1934-7-13 13382 Humboldt Coastal bluffs 3 Comment
  HSC56136  Aruncus dioicus var. acuminatus G. L. Clifton, Griswold 1979-8-1 11956 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC76047  Aruncus dioicus var. acuminatus Overton, Butler 1979-8-2 12547 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC154045  Aruncus dioicus var. pubescens Joseph P. Tracy 1909-6-13 2999 Humboldt near mouth of Warren Creek (hillside on Mad River); Northern Coast Region, Humboldt Bay Region 0 Comment
  UC56350  Aruncus dioicus var. pubescens J. Burtt Davy 1899-6-21 5722 Humboldt Supply Creek; North Coast Ranges, Hoopa Valley Comment
  RSA20964  Aruncus sylvester Carl B. Wolf 1937-9-13 9339 Humboldt N coast range, E Fork of Willow Creek at Forest Service Camp. 457 Comment
  HSC47656  Asarum caudatum Sheila Logan 1978-4-10 181 Humboldt Arcata Community Forest, near PSW Experimental Lab Comment
  RSA96571  Asarum caudatum E. K. Balls 1954-5-31 19496 Humboldt 4 mi. ne of Strongs Station, Van Duzen river, on Yager Road Comment
  UC677691  Asarum caudatum C. C. and S. K. Harris 1936-6-14 652 Humboldt Yager Road from Carlotta 457 Comment
  CHSC23909  Aspidotis densa D. E. Anderson 1965-5-1 3582 Humboldt Along road to Bluff Creek campground, about 3 miles from its jct. With Hw. 96. Comment
  RSA53857  Aspidotis densa Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mountain 1524 Comment
  UC419051  Aspidotis densa J. P. Tracy and H. E. Parks 1930-9-15 763 Humboldt Kneeland; Bald Hills Comment
  CAS-BOT-BC65947  Aspidotis densa D. H. Norris 1970-5-20 12183 Humboldt on Big Hill Road east of Hoopa Comment
  SEINET201024  Aster engelmannii J. P. Tracy 1919-9-18 5227 Humboldt Trinity Summit 1890 Comment
  HSC14595  Astragalus umbraticus D. E. Anderson 1963-9-29 2851 Humboldt Fish Lake. Comment
  RSA187393  Astragalus umbraticus Volney Rattan 1903-1 1878 Humboldt [no locality information provided] Comment
  UC1755322  Astragalus umbraticus Dean W. Taylor 2006-8-2 19569 Humboldt Showers Mountain; on north flank of the mountain, south rim of the Mad River canyon 1051 Comment
  UC302116  Astragalus umbraticus Joseph P. Tracy 1926-6-6 7559 Humboldt on road w Hoopa Valley (Hoopa Mountain); Northern Coast Ranges, , w <of> Hoopa Valley 914 Comment
  HSC104349  Astragalus umbraticus James Regan, Humboldt Redwood Co., LLC 2004-1 12 Humboldt Bald Hills, Weitchpec Road Comment
  HSC56967  Asyneuma prenanthoides Overton, Butler 1979-7-23 9491 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC58324  Asyneuma prenanthoides Overton, Butler 1979-8-2 12621 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC76227  Asyneuma prenanthoides Overton, Butler 1979-7-24 9772 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC76274  Asyneuma prenanthoides Denis Kearns 1981-7-23 370 Humboldt Near Whiteys Peak 732 Comment
  UCD136278  Athyrium filix-femina Lincoln Constance 1934-6-2 785 Humboldt Bull Creek Region, South Fork Eel River. Comment
  POM182459  Athyrium filix-femina subsp. cyclosorum Joseph P. Tracy 1912-7-25 3814 Humboldt Along Black Creek, Kneeland Prairie 762 Comment
  HSC98869  Athyrium filix-femina var. cyclosorum Cara Witte 2008-8-5 995 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles E of intersection with National Forest 1. 1346 Comment
  HSC93956  Atriplex gmelinii var. gmelinii Gordon Leppig 1999-10-25 1266 Humboldt Eureka, PALCO Marsh 1 Comment
  CAS-BOT-BC146202  Avena barbata Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek near Orleans. Comment
  HSC59241  Avena fatua Terry Roth 1979-5-29 100 Humboldt Arcata, on Alliance Rd. near Westwood Ct. Comment
  RSA15553  Baccharis douglasii C. B. Wolf 1927-8-30 1239 Humboldt Minor's Ranch Union Matole, 6 miles south of Petrolia Comment
  HSC32147  Barbarea orthoceras D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5611 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  UC562693  Barbarea orthoceras Joseph P. Tracy 1935-7-25 14239 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  CAS-BOT-BC106354  Bellis perennis W. R. Dudley 1899-1-1 s.n. Humboldt Arcata Comment
  HSC91368  Bellis perennis Collin Dillingham 1989-2-26 3 Humboldt Arcata; corner of 10th and D streets 0 Comment
  HSC48473  Berberis aquifolium var. repens J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9934 Humboldt Six Rivers Natl. Forest, along Ishi Pishi Rd., 1.5 mi. from the Ishi Pishi Bridge over the Klamath River 305 Comment
  HSC3349  Berberis nervosa John A. Dubois 1962-4-28 15 Humboldt 20 mi. E of Arcata Comment
  HSC35713  Berberis pinnata Thomas W. Nelson 1975-10-12 2237 Humboldt McKeown Ranch, N of Dinsmore Comment
  OBI16932  Bidens frondosa Joseph P. Tracy 1950-9-22 19367 Humboldt Klamath River, near Slate Crk. Below Orleans 8 mi Comment
  UC1222894  Bidens frondosa Joseph P. Tracy 1950-9-22 19367 Humboldt near Slate Creek (Klamath River, below Orleans 8 mi); Klamath River 121 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
  UC492236  Boechera acutina Joseph P. Tracy 1932-7-11 10396 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  POM247177  Boisduvalia glabella Joseph P. Tracy 1934-7-9 13349 Humboldt Dobbyn Creek 152 Comment
  HSC54891  Botrychium multifidum G. L. Clifton, Griswold 1979-7-25 10930 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  JEPS19058  Botrychium multifidum Milo S. Baker 1923-7-15 13 Humboldt southeastern outskirts of Eureka (near M and Hays Streets) Comment
  UC197916  Botrychium multifidum Joseph P. Tracy 1906-11-4 2551 Humboldt Eureka Northern Coast Region 0 Comment
  CAS-BOT-BC95327  Bowlesia incana Dr. A. Kellogg; W. G. W. Harford 1868-1-1 297 Humboldt unspecified Comment
  HSC97981  Boykinia major Cara Witte 2007-7-11 487 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  HSC64874  Boykinia occidentalis J. P. Smith 1973-5-26 6845 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC39223  Boykinia occidentalis D. E. Anderson, J. P. Smith 1971-7-6 - 1320 Humboldt Rock wall near bridge over Supply Creek Comment
  RSA32654  Boykinia occidentalis Doris K. Kildale 1925-7-28 1100 Humboldt [Unspecified] Comment
  UC857908  Boykinia occidentalis Ira L. Wiggins 1930-7-22 4694 Humboldt between Blue Lake and Willow Creek along bank Redwood Creek; bank of Redwood Creek btw Blue Lake and Willow Creek Comment
  HSC37929  Brassica nigra Peter Sorensen 1976-6-14 Humboldt North Spit Comment
  HSC8596  Brassica rapa John A. Dubois 1962-5-23 30 Humboldt 15 mi. E of Arcata Comment
  CAS-BOT-BC106291  Brickellia californica Doris K. Kildale 1925-9-26 1367 Humboldt Mouth of Mad River in coast. Comment
  UC581798  Brickellia greenei Joseph P. Tracy 1934-9-5 13655 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1402 Comment
  HSC9085  Briza maxima S. R. Johnson 1965-5-2 50 Humboldt Luffenholz Beach near parking area Comment
  RSA10068  Briza maxima Joseph P. Tracy 1930-7-6 8848 Humboldt Iaqua 762 Comment
  HSC38484  Briza minor Dennis Anderson, J. P. Smith 1971-6-18 - 1064 Humboldt Chezem Rd., 3 mi. E of bridge over Redwood Creek Comment
  SEINET4182983 Image available Briza minor Franklin Fitz Humboldt Backyard weed patch in Arcata Comment
  SBBG21833  Brodiaea elegans subsp. elegans D. Myrick 1964-7-26 975 Humboldt Hwy 299 ca. 15 mi E of Arcata 762 Comment
  UC1222693  Brodiaea elegans subsp. elegans Joseph P. Tracy 1950-6-23 18867 Humboldt 3 mi ne Alderpoint (at creek); Dobbyn Creek 213 Comment
  HSC100549  Brodiaea laxa Carl C. Marshall Jun 1885 94 Humboldt Hills everywhere. Comment
  RSA728073  Bromus Gary D. Wallace 1979-6-24 1863 Humboldt Brush Mountain Lookout, SW of the town of Willow Creek. 1216 Comment
  SEINET7297864 Image available Bromus breviaristatus Joseph P. Tracy 1950-1 18786 Humboldt Mail Ridge; North of Harris 2 miles 1036 Comment
  CAS-BOT-BC149567  Bromus carinatus var. carinatus Joseph P. Tracy 1932-7-12 10449 Humboldt Klamath Mountains. Trinity Summit. At Corral Prairie. 1524 Comment
  UC1103276  Bromus carinatus var. carinatus J. P. Tracy 1900-5-28 817 Humboldt immediate vicinity of Eureka 0 Comment
  UC212859  Bromus carinatus var. carinatus Joseph P. Tracy 1920-5-31 5333 Humboldt Northern Coast Region, Carlotta, along Yager Creek Carlotta; Northern Coast Region, , Yager Creek 30 Comment
  UC552775  Bromus carinatus var. carinatus Harold E. Parks and Joseph P. Tracy 1935-6-8 11268 Humboldt Trinidad 60 Comment
  SEINET200637 Image available Bromus commutatus Joseph P. Tracy 1917-6-24 4824 Humboldt Holmes Flat 61 Comment
  HSC35281  Bromus diandrus J. D. Ackerman, A. M. Montalvo 1975-6-22 491 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36 Comment
  HSC9271  Bromus diandrus J. W. Johnson 1962-4-18 1268 Humboldt Along the lane below the W.M. Lanphere Home, Samoa Peninsula Comment
  UCD58510  Bromus diandrus Joseph P. Tracy 1950-6-15 18775 Humboldt Mail Ridge. North of Harris 5 miles. 944 Comment
  HSC103007  Bromus hordeaceus J. P. Smith 2014-5-23 13847 Humboldt Along the Hammond Trail north of Murray Road in McKinleyville 17 Comment
  HSC79390  Bromus hordeaceus Kenneth Clark 1980-5-10 653 Humboldt Above mean high tide, E beach of Point Delgada. 5 Comment
  UC188942  Bromus secalinus J. Burtt Davy 1899-6-20 5688 B Humboldt North Coast Ranges, Hoopa Valley Hoopa Valley; North Coast Ranges, Hoopa Valley Comment
  UC212890  Bromus tectorum Joseph P. Tracy 1919-5-31 5173 Humboldt Northern Coast Ranges, at mouth of Willow Creek, tributary of Trinity River Willow Creek; Northern Coast Ranges, Willow Creek 152 Comment
  UC526730  Bromus tectorum Joseph P. Tracy 1925-5-30 7039 Humboldt Northern Coast Ranges, Larrabee Valley Larrabee Valley; Northern Coast Ranges, Larrabee Valley 701 Comment
  CAS-BOT-BC185519  Bromus vulgaris Joseph Burtt Davy; Walter C. Blasdale 1899-6-10 5406 Humboldt North Coast Ranges. Hubbards Station. Comment
  RSA127011  Bromus vulgaris H. S. Yates 1936-6-23 5873 Humboldt 3 miles S. E. of Scotia; Rohnerville Comment
  UC84157  Cacaliopsis nardosmia J. W. Blankinship 1893-6-15 Humboldt Jager Comment
  HSC6602  Cakile edentula C. B. Wolf 1927-8-29 1217 Humboldt Devil's Gate, S of Cape Mendocino. Comment
  UC902001  Cakile maritima Joseph P. Tracy 1948-6-10 18062 Humboldt Trinidad, beach w of town Trinidad 3 Comment
  RSA0031108  Calamagrostis R. F. Thorne, P. Everett 1965-8-7 35191 Humboldt Big Lagoon; at edge of bog at south end of lagoon. 2 Comment
  UC526774  Calamagrostis breweri Joseph P. Tracy 1932-7-14 10553 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC74075  Calamagrostis foliosa Joyce Walker 1980-8-21 Humboldt Comment
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May 26 2013
  HSC17634  Calandrinia ciliata P. N. Slattery 1963-3-31 35 Humboldt Clam Beach Comment
  CHSC106732  Callitriche heterophylla var. bolanderi Robert F. Thorne; P. Everett 1965-8-9 35323 Humboldt Clam Beach County Park: along highway in shallow water of ditch. 3 Comment
  CAS-BOT-BC80380  Calocedrus decurrens Doris K. Kildale 1925-8-18 1252 Humboldt Trinity Summit - McKay's Cabin 1524 Comment
  HSC58144  Calocedrus decurrens Gilbert Muth 1979-8-1 12179 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1781 Comment
  UC275510  Calocedrus decurrens Joseph P. Tracy 1924-8-31 6847 Humboldt Klamath River at Bluff Creek Northern Coast Ranges, Klamath River, Bluff Creek 91 Comment
  UC502900  Calocedrus decurrens Joseph P. Tracy 1932-7-13 10499 Humboldt open ground at Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC70761  Calochortus tolmiei M. A. Baker 1980-7-19 2994 Humboldt Near Bret Hole. 1814 Comment
  UC1197683  Calochortus tolmiei Harold E. Parks and Joseph P. Tracy 1934-6-27 11071 Humboldt Grouse Mt. 1432 Comment
  UC146214  Calochortus tolmiei Joseph P. Tracy 1908-6-8 2624 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC15330  Calochortus tolmiei D. E. Anderson 1962-5-1 2192 Humboldt 1 mi. E of junction of Redwood Creek road and road to Hoopa Comment
  HSC34909  Calochortus tolmiei Thomas W. Nelson 1975-5-27 1883 Humboldt Beside Petrolia-Ferndale Rd., 5 mi. S of Ferndale Comment
  SEINET11861072  Calycadenia truncata subsp. scabrella H. P. Chandler 1901-1 1492 Humboldt Klamath River, North Coast Ranges 427 Comment
  UC1196478  Calypso bulbosa Joseph P. Tracy 1918-5-1 4900 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC45315  Calypso bulbosa R. A. Vanbianchi 1972-4-14 Humboldt Tiptop Ridge, directly E of the town of Fieldbrook Comment
  RSA259585  Calypso bulbosa J. D. Ackerman 1976-4-27 754 Humboldt 10 Mi. E of Blue Lake on rd. to Maple Creek. Comment
  SEINET12074107  Calypso bulbosa H. P. Chandler 1901-1 Humboldt Comment
  RSA304262  Calypso bulbosa var. occidentalis James R. Shevock 1972-3-27 1481 Humboldt Redwood State Park Comment
  HSC55198  Calyptridium monospermum G. L. Clifton, Terry Griswold 1979-8-2 12299 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC23151  Calystegia occidentalis subsp. occidentalis Harley P. Chandler June, 1901 1418 Humboldt Klamath River , Klamath River (North Coast Ranges) 304 Comment
  HSC48792  Calystegia occidentalis subsp. occidentalis Brad Klipfel 1975-6-17 660 Humboldt 2 mi. E of Titlow Hill Rd. along Hwy. 299 Comment
  HSC59102  Calystegia soldanella Clark L. Miller 1979-5-24 1149 Humboldt Dunes off Samoa Boulevard about .5 mi. from Coast Guard Station Gate Comment
  UC1586964  Camassia Juha Pykala and D. H. Norris 1987-6-5 1391 Humboldt e of Maple Creek (Snow Mountain Lake); Snow Mountain Lake 1386 Comment
  RSA12420  Camassia leichtlinii subsp. suksdorfii Carl B. Wolf 1934-7-2 5873 Humboldt At small lake at Snow Camp (Mtns E of Korbel) 1372 Comment
  UC1173650  Camassia leichtlinii subsp. suksdorfii Joseph P. Tracy 1930-7-17 9000 Humboldt South Fork Mountain; in wet meadow at McKay Camp 1676 Comment
  HSC22497  Camissonia cheiranthifolia W. B. Thompson 1967-7-18 2 Humboldt Comment
  UC741172  Camissoniopsis cheiranthifolia subsp. cheiranthifolia C. C. and S. K. Harris, Clarence Crane Jr. 1939-8-23 970 Humboldt Samoa Comment
  POM232035  Campanula prenanthoides I. L. Wiggins 1930-7-22 4690 Humboldt Along bank of Redwood Creek btwn Blue Lake and Willow Creek. Comment
  SEINET10873254  Campanula prenanthoides Rogers McVaugh 1941-8-3 McVaugh 6214 Humboldt 3.5 miles south of Garberville, steep shaly roadside bank, in woods Comment
  HSC98552  Campanula scouleri Cara Witte 2007-7-20 568 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1522 Comment
  HSC99576  Campanula scouleri K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 241 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
  SEINET10463566  Campanula scouleri Clifton 1979-7-31 CLIFTON 11815 Humboldt NR TISH TANG A TANG CR., SALMON MT QUAD. NR HOOPA EVERGREEN CONIFER FOREST IN SEEPAGE AREA 1356 Comment
  HSC98724  Campanula scouleri Cara Witte 2008-7-16 919 Humboldt Forest Service Road 4N38. At intersection to Board Camp Lookout. 1414 Comment
  HSC6624  Capsella bursa-pastoris Paul Shields Jul 1955 Humboldt 2 mi. S of Weott Comment
  CAS-BOT-BC37426  Cardamine californica Doris K. Kildale; L. B. Kildale 1930-5-11 9535 Humboldt Wiregrass Prairie - The Bald Hills. 792 Comment
  HSC36518  Cardamine californica J. D. Ackerman, A. M. Montalvo 1973-5-6 61 Humboldt 5 mi. from Weott on Bull Creek Flat Rd. 274 Comment
  HSC6694  Cardamine californica J. L. Baker 1965-4-12 43 Humboldt 4 mi. N of Arcata on North Bank Rd. Comment
  UC1199200  Cardamine californica Joseph P. Tracy 1924-2-24 6603 Humboldt near McKee's Mill (South Fork Eel River); Northern Coast Ranges, South Fork Eel River 60 Comment
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Jul 25 2012
  UC162639  Cardamine californica Harley P. Chandler May 1901 1091 Humboldt Idlewild near Dyerville (Humboldt Bay); North Coast Ranges, , Idlewild 152 Comment
  UC492258  Cardamine nuttallii Joseph P. Tracy 1932-7-15 10599 Humboldt ridges e Corral Prairie (Trinity Summit); Klamath Mountains, , e of Corral Prairie 1828 Comment
  UC1199193  Cardamine nuttallii var. covilleana Joseph P. Tracy 1949-6-25 18352 Humboldt near Box Camp (Trinity Summit); , near Box Camp 1524 Comment
  CAS-BOT-BC17792  Carex amplifolia Doris Kildale 1931-6-6 10865 Humboldt Gans Prairie, Orick - Weitchpec road. Comment
  JEPS25976  Carex amplifolia Joseph P. Tracy 1935-6-23 13986 Humboldt French Camp Ridge 1066 Comment
  HSC103599  Carex angustata Thomas W. Nelson, Jane Nelson 1987-6-11 8609 Humboldt Box Spring at Box Camp; along trail to North Trinity Mountain. 1524 Comment
  HSC76400  Carex aquatilis var. dives L. P. Janeway 1982-8-7 118 Humboldt Dry Lagoon, middle of lagoon 3 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
  SEINET2044695 Image available Carex arcta Juha Pykala, D. H. Norris 1987-6-5 1436 Humboldt E of Maple Creek, Lake Prairie. 1052 Comment
  UC79832  Carex arcta Joseph P. Tracy 1926-7-5 7723 Humboldt near Redwood House (on road to head of Yager); Northern Coast Ranges 609 Comment
  HSC74693  Carex athrostachya Gail Newton 1981-8-6 2403 Humboldt Near Humbug Creek 1256 Comment
  UC1152075  Carex athrostachya Joseph P. Tracy 1950-7-31 19236 Humboldt edges of Muddy Lake on top of ridge of mountain Grouse Mountain, Muddy Lake 1524 Comment
  RSA244324  Carex barbarae Larry E. DeBuhr 1973-4-23 989 Humboldt Richardson Grove Redwood State Park. Comment
  RSA364615  Carex barbarae Henry M. Pollard 1948-7-29 s.n. Humboldt At Woodson Mine, near Orleans. Comment
  CHSC47364  Carex bolanderi L. P. Janeway 1984-5-27 835 Humboldt Ca 1 mi E of Redway on Redwood Cr. 91 Comment
  CHSC85985  Carex bolanderi L. P. Janeway 2003-7-30 7947 Humboldt High North Coast Ranges. Small spring and seep 100 m south-west of Clear Lake, 3.1 km southeast of Titlow Hill. 1494 Comment
  HSC74641  Carex bolanderi M. A. Baker 1980-5-18 1359 Humboldt Near Black Mtn. 792 Comment
  UC1103111  Carex bolanderi Joseph P. Tracy 1933-6-13 12595 Humboldt Hoopa Mountain, near summit on road west from Hoopa to Bair's 1066 Comment
  RSA0079896  Carex brevicaulis Joseph P. Tracy 1939-4-27 16228 Humboldt Mouth of Little River. 9 Comment
  CHSC23306  Carex buxbaumii Robert F. Thorne; P. Everett 1965-8-9 35293 Humboldt Big Lagoon. 3 Comment
  UC1103599  Carex concinnoides Joseph P. Tracy 1927-6-19 8202 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 15 Comment
  CAS-BOT-BC34982  Carex densa Joseph Prince Tracy 1938-6-9 15877 Humboldt Dobbyn Creek. 152 Comment
  CHSC35530  Carex densa Thomas Nelson; Ken Hindley 1978-5-28 4086 Humboldt On Mckeown Ranch north of Dinsmore. 762 Comment
  CAS-BOT-BC34978  Carex densa Joseph Prince Tracy 1936-6-17 14953 Humboldt Northenr Coast Ranges. Buck Mountain, lower foothills of its northwestern slope. 762 Comment
  UC1152065  Carex densa Joseph P. Tracy 1950-7-6 18987 Humboldt lower end of Burr Valley on nw slope of Buck Mountain Burr Valley, Buck Mountain 1066 Comment
  UC1103127  Carex echinata subsp. echinata Joseph P. Tracy 1923-6-24 6372 Humboldt in cold wet meadow near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC96553  Carex echinata subsp. phyllomanica Gordon Leppig 1997-6-19 446 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  CDA33060  Carex echinata subsp. phyllomanica Gordon Leppig 1997-6-19 445 Humboldt Big Lagoon County Park, Big Lagoon Bog. Comment
  CHSC42988  Carex exsiccata L. P. Janeway 1987-7-30 2532 Humboldt At Dry Lagoon. Middle of lagoon. 3 Comment
  HSC76840  Carex exsiccata L. P. Janeway 1982-8-7 114 Humboldt Dry Lagoon 3 Comment
  HSC40977  Carex fracta J. O. Sawyer 1970-6-24 2217 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC98786  Carex fracta Cara Witte 2007-7-11 489 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  UC562280  Carex geyeri Joseph P. Tracy 1933-7-11 12662 Humboldt Horse Mountain 1432 Comment
  UCSC000105  Carex globosa H. L. Person 1932-5-11 s.n. Humboldt Near Arcata Arcata - Eureka Comment
  SEINET11442497  Carex gynodynama Unknown 1927-5-8 7969 Humboldt PHILLIPSVILLE...FACING SOUTH FORK OF EEL RIVER 122 Comment
  CAS-BOT-BC22313  Carex harfordii Joseph Prince Tracy 1935-6-8 13936 Humboldt Eureka. 60 Comment
  JEPS25966  Carex harfordii Joseph P. Tracy 1927-7-17 8279 Humboldt Three Cabins: grassy slopes on lower western foothills of Chaparral Mountain 457 Comment
  POM160901  Carex hassei Joseph P. Tracy 1924-7-13 6721 Humboldt Big Lagoon. 6 Comment
  HSC70469  Carex hendersonii J. P. Tracy 1905-6-25 2202 Humboldt Eureka 0 Comment
  SEINET10855915  Carex hendersonii David Castaner 1984-5-29 Castaner 8070 Humboldt Entrance road to Cal-Barrel area. Moist forest. 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
  JEPS79856  Carex lenticularis var. impressa Joseph P. Tracy 1935-7-23 14148 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  POM126517  Carex lenticularis var. limnophila Joseph P. Tracy 1923-6-17 6275 Humboldt Big Lagoon 6 Comment
  RSA246648  Carex lenticularis var. limnophila Robert F. Thorne 1965-9-19 35461 Humboldt Freshwater Lagoon S of Orick. 3 Comment
  UC1103625  Carex lenticularis var. limnophila Joseph P. Tracy with H. E. Parks 1924-8-3 6766 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC61630  Carex lenticularis var. lipocarpa Ruby Van Deventer 1959-6-20 Humboldt Humboldt-Del Norte county line, Onion Lake 1220 Comment
  JEPS79865  Carex leporina Joseph P. Tracy 1936-6-28 15014 Humboldt near Murphy Meadow (Bald Mountain); Bald Mountain 1066 Comment
  HSC7139  Carex leptalea B. D. Rogers 1965-10-2 1021 Humboldt Big Lagoon 0 Comment
  HSC102201  Carex leptopoda M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1115 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  HSC48393  Carex leptopoda Brad Klipfel 1973-6-10 151 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC562657  Carex mariposana Joseph P. Tracy 1935-7-23 14141 Humboldt Corral Prairie Trinity Summit 1584 Comment
  JEPS101126  Carex mendocinensis Dean W. Taylor 1991-8-15 12296 Humboldt ridge 1 mile West of Horse Mountain 1493 Comment
  HSC102153  Carex microptera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1061 Humboldt Patterson Meadows 1555 Comment
  HSC70470  Carex microptera Gail Newton 1980-7-20 1639 Humboldt Near Bell Swamps 1426 Comment
  CAS-BOT-BC32135  Carex multicaulis George Ledyard Stebbins; J. P. Tracy 1942-6-2 3480 Humboldt Head of Yager Creek near Yager, rich soil of moist woods. Comment
  HSC103144  Carex multicostata M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1528 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC26097  Carex multicostata J. O. Sawyer 1970-6-27 2303 Humboldt 1829 Comment
  CAS-BOT-BC119536  Carex nudata Joseph Prince Tracy 1935-6-22 13959 Humboldt Eel River, at mouth of Larrabee Creek. Comment
  HSC45021  Carex nudata R. Sutherland 1978-5-16 116578 Humboldt Redwood Creek 143 Comment
  CHSC84722  Carex obnupta L. P. Janeway 2003-7-27 7925 Humboldt North Coast. Edge of marsh on south side of southwest end of Hwy 101 causeway across Big Lagoon. 2 Comment
  HSC86334  Carex obnupta Rudolf W. Becking 1988-4-9 Humboldt South Spit, opposite Fields Landing Comment
  UC585634  Carex ovalis Joseph P. Tracy 1937-8-7 15617 Humboldt Murphy Ridge Bald Mt. 914 Comment
  UC562641  Carex pachystachya Joseph P. Tracy 1935-6-8 13936 Humboldt Eureka Northern Coast Ranges 0 Comment
  CAS-BOT-BC119222  Carex pachystachya Harold Ernest Parks; Joseph Prince Tracy 1935-6-16 11271 Humboldt Buck Mt. Lower NW slope. 792 Comment
  CAS-BOT-BC119226  Carex pachystachya Joseph Prince Tracy 1939-5-6 16282 Humboldt Lack Pond; in Trinity River Valley, opposite mouth of Willow Creek. 152 Comment
  CAS-BOT-BC118822  Carex preslii R. Tallent 1987-8-11 895 Humboldt Six Rivers National Forest. Roadside S of Horse Mtn. 1389 Comment
  RSA550443  Carex preslii R. Tallent 1987-8-11 893 Humboldt Six Rivers National Forest: Roadside S of Horse Mtn. 1450 Comment
  CAS-BOT-BC118004  Carex rossii Joseph Prince Tracy 1949-5-8 18296 Humboldt Carlotta. Open flat by old Strong's District School House, 5 mi E of town. 60 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
  CAS-BOT-BC117365  Carex stipata var. stipata Joseph Prince Tracy 1931-5-17 9422 Humboldt Lack Pond; in Trinity River Valley, opposite mouth of Willow Creek. 152 Comment
  UC562269  Carex stipata var. stipata Joseph P. Tracy 1931-5-17 9422 Humboldt opposite mouth Willow Creek (Lack Pond); Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC116679  Carex subfusca Joseph Prince Tracy 1928-6-24 8470 Humboldt Valley of south Yager Creek in wet meadow. 762 Comment
  UC197216  Carex tumulicola Joseph P. Tracy 4104 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1103085  Carex unilateralis Joseph P. Tracy 1928-6-24 8471 Humboldt valley of South Yager Creek 762 Comment
  UC194818  Carex unilateralis J. P. Tracy 1912-7-21 3783 Humboldt Alton; ; Alton, Humboldt Co. 30 Comment
  UC562327  Carex utriculata Joseph P. Tracy 1932-7-14 10563 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC562326  Carex vesicaria var. major Joseph P. Tracy 1927-7-17 8277 Humboldt lower w foothills Chaparral Mountain (Three Cabins); North Coast Ranges 457 Comment
  CAS-BOT-BC114986  Carex viridula Joseph Prince Tracy 1924-7-13 6720 Humboldt In brackish swamp, Big Lagoon. 6 Comment
  UC1225792  Carpobrotus chilensis Joseph P. Tracy 1947-9-1 17924 Humboldt Big Lagoon 6 Comment
  CAS-BOT-BC248911  Castilleja M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  UC162563  Castilleja Joseph P. Tracy 1911-5-30 3199 Humboldt Eureka; Northern Coast Region 0 Comment
  UC382597  Castilleja Joseph P. Tracy 1925-8-14 7230 Humboldt near Samoa (Samoa Sand Dunes, on Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  CAS-BOT-BC249127  Castilleja affinis Doris K. Kildale 1927-7-10 3737 Humboldt Gans Prairie Comment
  JEPS3288  Castilleja affinis subsp. litoralis C. R. Bell 1952-5-3 1324 Humboldt 1.8 mi s Trinidad (and 1.8 mi n of Little River, to the w of Highway 101) Comment
  SBBG52997  Castilleja affinis subsp. litoralis J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka; Loleta Comment
  UC1374929  Castilleja affinis subsp. litoralis Noel H. Holmgren and Liew Fah Seong 1969-6-24 3611 Humboldt 5.6 mi w Ferndale Comment
  UC902223  Castilleja affinis subsp. litoralis Joseph P. Tracy 1947-5-24 17692 Humboldt Big Lagoon 152 Comment
  UC902251  Castilleja affinis subsp. litoralis Joseph P. Tracy 1947-5-24 17692 A Humboldt Big Lagoon 152 Comment
  SEINET4095429  Castilleja ambigua subsp. ambigua O. M. Clark 1932-1 5331 Humboldt North Eureka. Comment
  BLMAR305  Castilleja ambigua subsp. humboldtiensis Jennifer Anthony-Wheeler 2002-7-1 305 Humboldt South Spit 6 Comment
  HSC36100  Castilleja ambigua subsp. humboldtiensis Tom Mills 1974-5-12 Humboldt Beside Humboldt Bay near Bayside Cut-off Comment
  HSC76226  Castilleja applegatei Overton, Butler 1979-7-24 9742 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  UC604635  Castilleja applegatei subsp. martinii Joseph P. Tracy 1932-5-22 10118 Humboldt between Miranda and Redway (South Fork of Eel River); North Coast Ranges, South Fork of Eel River 91 Comment
  HSC30743  Castilleja applegatei subsp. pinetorum D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5648 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  SBBG54572  Castilleja exserta subsp. latifolia F. W. Pennell, J. Tracy 1940-7-6 26085 Humboldt back of beach, Table Bluff, W of Loleta Comment
  HSC44563  Castilleja miniata Brad Klipfel 1973-7-15 183 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC99292  Castilleja miniata Jimerson, J. Pageau 1979-8-10 718 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  HSC31218  Castilleja pruinosa D. E. Anderson 1972-6-20 5731 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC99015  Castilleja pruinosa Cara Witte 2007-6-1 163 Humboldt Horse Mountain Botanical Area. Along Forest Service 6N38. 1311 Comment
  JEPS103930  Castilleja pruinosa T. I. and F. M. Chuang 1991-7-8 7872 Humboldt 2.8 mi NE of Gasquet, on Old Gasquet Toll Rd. Comment
  HSC44432  Ceanothus arcuatus Brad Klipfel 1975-5-24 634 Humboldt Horse Mtn. Comment
  UC1193335  Ceanothus cordulatus P. Zinke 1950-10-9 77 Humboldt King Peak King Peak Quad. 28D1 1280 Comment
  CAS-BOT-BC49657  Ceanothus foliosus var. foliosus C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Ridge near Needle Roack Cross Roads, SW corner of Humboldt Co. Comment
  HSC101661  Ceanothus incanus J. P. Smith, J. O. Sawyer 2011-4-23 13122 Humboldt Along road from Redway to Shelter Cove 208 Comment
  HSC60192  Ceanothus incanus J. P. Smith, J. O. Sawyer 1975-4-6 8055 Humboldt Rd to Shelter Cove, 0.7 mi W of junction with Honeydew Rd. Comment
  UCD112167  Ceanothus incanus B. L. Kay 1955-4-10 s.n. Humboldt Wagner Ranch, 5 miles southwest of Garberville. Comment
  CAS-BOT-BC63678  Ceanothus integerrimus L. B. Kildale 1928-6-24 5279 Humboldt Entrance to Hoopa Mt. Comment
  HSC37616  Ceanothus integerrimus R. Sutherland 1975-5-29 0 .29575 Humboldt Along rd. at Van Anken Creek 299 Comment
  HSC55349  Ceanothus integerrimus Griswold, Butler 1979-7-12 7255 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  OBI10458  Ceanothus integerrimus Carl B. Wolf 1937-8-13 9235 Humboldt North Coast Range, 8 mi E of Hoopa Valley on New road towards Trinity summit 1219 Comment
  RSA46465  Ceanothus integerrimus var. californicus Doris K. Kildale 1927-5-15 3301 Humboldt Petrolia Comment
  HSC18380  Ceanothus oliganthus var. sorediatus P. J. Zinke 1950-10-4 166 Humboldt 2 mi E of Honeydew 1829 Comment
  HSC37082  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-5-8 6 .8575 Humboldt County rd. 4 mi SE of Honeydew 259 Comment
  HSC37604  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-7-11 6 .11775 Humboldt Along county rd. 259 Comment
  UC275287  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1924-5-11 6675 Humboldt Bull Creek Northern Coast Ranges 121 Comment
  CAS-BOT-BC51216  Ceanothus parryi Mrs. H. C. Cantelow 1935-5-30 829 Humboldt N. of Garberville Comment
  HSC36682  Ceanothus parryi R. Sutherland 1975-5-30 5 .30575 Humboldt N of Briceland, Redwood Creek near rd. 177 Comment
  SBBG4535  Ceanothus parryi H. and M. Dearing 1933-5-15 979 Humboldt near Garberville Comment
  UC1998009  Ceanothus parryi Joseph P. Tracy 1935-5-19 13810 Humboldt Phillipsville: grassy slopes and open oak groves facing south Fork of Eel River. 121 Comment
  HSC18322  Ceanothus pumilus Class 1937-5-12 Humboldt Hoopa Comment
  HSC43186  Ceanothus pumilus R. Sutherland 1976-4-17 3 .17476 Humboldt 549 Comment
  HSC43187  Ceanothus pumilus R. Sutherland 1976-4-17 2 .17476 Humboldt 549 Comment
  HSC43229  Ceanothus pumilus R. Sutherland 1976-4-17 5 .17476 Humboldt 549 Comment
  RSA46916  Ceanothus pumilus Doris K. Kildale 1926-4-25 1811 Humboldt Hoopa Mt. 793 Comment
  RSA46917  Ceanothus pumilus Doris K. Kildale 1926-4-25 1810 Humboldt Hoopa Mt. 793 Comment
  UC902165  Ceanothus pumilus Joseph P. Tracy 1946-5-4 17526 Humboldt along Trinity Highway (Willow Creek Canyon); Willow Creek Canyon 609 Comment
  CAS-BOT-BC52984  Ceanothus thyrsiflorus L. R. Abrams; R. Bacigalupi 1922-6-25 8295 Humboldt Bluffs north of Big Lagoon Comment
  RSA25754  Ceanothus thyrsiflorus Carl B. Wolf 1941-7-28 11089 Humboldt Summit of Trinidad Head. 46 Comment
  RSA46888  Ceanothus thyrsiflorus Doris K. Kildale 1926-3-20 1626 Humboldt Liscom Hill-Mad River Comment
  UCD112719  Ceanothus thyrsiflorus H. P. Olmo 1934-6-8 s.n. Humboldt 5 mi. north of Trinidad. Comment
  HSC101670  Ceanothus thyrsiflorus var. thyrsiflorus J. P. Smith, J. O. Sawyer 2011-4-23 13131 Humboldt Kings Peak Road, 3.2 miles from its junction with Shelter Cove Rd Comment
  SBBG28513  Ceanothus thyrsiflorus var. thyrsiflorus D. Kildale 1926-3-20 Humboldt Big Lagoon Comment
  UC1052836  Ceanothus velutinus W. L. Colwell 1955-6-7 28 Humboldt three mi w Weott (one half mi n of Grasshopper Mountain lookout); Quad. 29B3, n of Grasshopper Mountain lookout 914 Comment
  UC275286  Ceanothus velutinus Joseph P. Tracy 1924-5-11 6674 Humboldt Bull Creek Northern Coast Ranges, Bull Creek 121 Comment
  SEINET13946128 Image available Ceanothus velutinus S. K. Harris 1942-1 1257 Humboldt Fickle Hill Road, 5 mi N and 2 mi E of Boynton Prairie; ca 630 m alt. 630 Comment
  UC1222951  Centaurea cyanus Joseph P. Tracy 1943-11-28 17456 Humboldt near Alton (Eel River bar at mouth of Van Duzen); Eel River, Van Duzen Comment
  UC1222950  Centaurea melitensis Joseph P. Tracy 1943-11-28 17455 Humboldt bar at mouth of Van Duzen Eel River; , Van Duzen Comment
  JEPS44138  Centaurea solstitialis Joseph P. Tracy 1933-8-27 13002 Humboldt 2 to 5 mi e of the South Fork (along the Eel River, Camp Grant); Eel River 45 Comment
  JEPS11948  Centaurium muehlenbergii Rimo Bacigalupi with C. L. Custer and G. T. Robbins 1954-8-10 4755 Humboldt 1 mi s Garberville (along U.S. Highway 101) 213 Comment
  RSA69802  Centaurium muehlenbergii F. W. Peirson 1941-7-29 13110 Humboldt Stephens Grove State Park. Comment
  UC154177  Centunculus minimus Harley P. Chandler May, 1901 1180 Humboldt North Coast Ranges, Humboldt Bay Humboldt Bay; North Coast Ranges, Humboldt Bay 30 Comment
  HSC40125  Cephalanthera austiniae Thomas W. Nelson, James Nelson 1976-7-28 3070 Humboldt Along small creek E of old road from Goat Mountain lookout to branch road of FS 2S08 N of Alder Springs. 1555 Comment
  UC1196468  Cephalanthera austiniae Joseph P. Tracy 1926-6-6 7581 Humboldt near summit on rd. w. from Hoopa to Bair's (Hoopa Mt.); Northern Coast Ranges, Hoopa Mt. 1066 Comment
  CAS-BOT-BC384904  Cerastium arvense Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC39837  Cerastium glomeratum Peter Sorensen 1976-6-12 Humboldt Woodley Island, Humboldt Bay Comment
  UC176615  Cerastium glomeratum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3581 Humboldt near Hydesville; Northern Coast Region 30 Comment
  HSC90487  Cerastium glomeratum Jean Hanson 1980-4-12 35 Humboldt Eureka, Indian Island in Humboldt Bay. W end of island. Comment
  UC478904  Cercis occidentalis Marcus E. Jones, A. M. 1931-7-16 28996 Humboldt e Arcata; Junction Comment
  UC1198736  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1903-5-23 1904 Humboldt along Eel River, at Alder Point Eel River; Northern Coast Ranges, , Alder Point 152 Comment
  HSC104102  Chamaecyparis lawsoniana Monica Rodriguez, William A. Worley 2015-3-21 21 Humboldt Along South Fork Rd, 8.3 mi. from 199 Redwood Hwy. Comment
  HSC76201  Chamerion angustifolium subsp. circumvagum Overton, Butler 1979-8-2 12521 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  RSA44501  Chenopodium botrys H. M. Pollard 1947-8-31 s.n. Humboldt Klamath River near Wilson Creek, Orleans region. Comment
  CAS-BOT-BC451384  Chimaphila menziesii Volney Rattan 1879-1-1 s.n. Humboldt Klamath Comment
  HSC45429  Chimaphila menziesii Thomas W. Nelson, Jane Nelson 1977-6-19 3488 Humboldt Along road to Goat Hill 1616 Comment
  UC21651  Chimaphila umbellata J. Burtt Davy 1899-6-18 5620 Humboldt Bald Mt. near Korbel; North Coast Ranges, Bald Mt. Comment
  CAS-BOT-BC451499  Chimaphila umbellata Carl B. Wolf 1937-8-12 9209 Humboldt North Coast Range, South Fork Mt., 0.6 mi S of Blake Lookout 1676 Comment
  SBBG83414  Chimaphila umbellata R. Gankin 1965-8-5 546 Humboldt Kings Mtn Rd, 2.2 mi E of rd end, Pacific Range Wilderness Area Comment
  JEPS61591  Chlorogalum pomeridianum var. pomeridianum Lincoln Constance 1934-6-12 866 Humboldt Bull Creek Road and n bank South Fork Eel River (Bull Creek Region, Dyerville); Bull Creek Region, N bank South Fork Eel River, Dyerville Comment
  CAS-BOT-BC36487  Chrysolepis chrysophylla Carl B. Wolf 1930-10-30 1786 Humboldt Old Coast Road - at Thorn 304 Comment
  HSC31653  Chrysolepis chrysophylla Timothy B. Devine 1974-5-4 319 Humboldt Junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  CAS-BOT-BC30122  Chrysolepis chrysophylla var. minor Carl B. Wolf 1937-9-13 9338 Humboldt North Coast Range, Summit of Grouse Mt. 1644 Comment
  UC1198852  Chrysosplenium glechomifolium J. P. Tracy 1901-6-10 1128 Humboldt immediate vicinity Eureka 0 Comment
  HSC39165  Circaea alpina subsp. pacifica D. E. Anderson, J. P. Smith 1971-6-28 - 1238 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC70355  Circaea alpina subsp. pacifica M. A. Baker 1980-6-7 1864 Humboldt Near Ammon Creek 732 Comment
  POM228358  Circaea alpina subsp. pacifica C. C. Harris, S. K. Harris 1936-6-22 672 Humboldt Yager Creek 732 Comment
  JEPS11944  Cirsium arvense Rimo Bacigalupi with C. L. Custer and G. T. Robbins 1954-8-11 4757 Humboldt 0.5 mi n Mad River bridge (n of Arcata, in field along U.S. Highway 101); U.S. Highway 101 Comment
  UCSC000744  Cirsium arvense G. T. Nordstrom 1933-6-30 1443 Humboldt 1.6 miles W.S.W. of Orick Orick - Orick 46 Comment
  CAS-BOT-BC284408  Cirsium arvense Carl B. Wolf 1927-8-22 810 Humboldt Along the roadside at Orick Comment
  UC169293  Cirsium brevistylum Joseph P. Tracy 1912-7-14 3748 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  HSC40773  Cirsium brevistylum Thomas W. Nelson 1976-7-9 3014 Humboldt Along S.R. 36 just E of Heley Creek Comment
  HSC91921  Cirsium brevistylum E. Mackey 1987-9-5 Humboldt Patricks Point State Park; in dune area Comment
  CAS-BOT-BC285530  Cirsium occidentale var. candidissimum Henry M. Pollard 1948-7-29 s.n. Humboldt Between Orleans and Woodson Mines Comment
  SEINET11836350  Cirsium pastoris J. P. Tracy 1942-1 17302 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC288720  Cirsium remotifolium Joseph P. Tracy 1938-7-6 16025 Humboldt Big Lagoon 30 Comment
  HSC74326  Cirsium remotifolium M. A. Baker 1980-6-26 2423 Humboldt Near Sims Creek 610 Comment
  RSA0070876  Cirsium remotifolium Joseph P. Tracy 1921-7-31 5860 Humboldt Table Bluff. 121 Comment
  CDA1549  Cirsium remotifolium var. odontolepis W. Simas 1972-7-1 s.n. Humboldt Humboldt Redwoods State Park, forested area near Redcrest, about 6 mi. NW of Weott. 0 Comment
  HSC5385  Cirsium vulgare J. W. Johnson 1961-9-10 1113 Humboldt Arcata, S of Dune 3 N, Christenson Farm, Samoa Pennisula Comment
  UC1196992  Clarkia Joseph P. Tracy 1942-6-15 17170 Humboldt 5 mi n Garberville 152 Comment
  UCR123961  Clarkia affinis George K. Helmkamp, E. A. Helmkamp 2001-7-8 6967 Humboldt North coast hills., Calif. Hwy 36, 2.2 mi west of Dinsmore 732 Comment
  UC677710  Clarkia amoena S. K. Harris 1936-6-25 671 Humboldt road from Petrolia to Cape Mendocino (s side of Domingo Gulch) 30 Comment
  HSC63486  Clarkia amoena subsp. huntiana M. A. Baker 1977-6-6 380 Humboldt Along Hwy. 96, Hoopa Indian Res. Comment
  UC20317  Clarkia amoena subsp. whitneyi H. N. Bolander 1866-1 6534 Humboldt Shelter Cove; ; Shelter Cove, Humboldt Co. Comment
  UC20318  Clarkia amoena subsp. whitneyi H. N. Bolander 1866-1 6534 Humboldt Shelter Cove; ; Shelter Cove, Humboldt Co. Comment
  CAS-BOT-BC164180  Clarkia concinna Harley P. Chandler 1901-6-1 1325 Humboldt Hupa Indian Reservation 152 Comment
  HSC16279  Clarkia concinna subsp. concinna B. D. Rogers, William J. Ferlatte 1966-6-15 2105 Humboldt Larabee Valley 762 Comment
  UC902180  Clarkia gracilis subsp. sonomensis Joseph P. Tracy 1945-7-4 17511 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC32089  Clarkia purpurea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5701 Humboldt McKeown Ranch, N of Dinsmore Comment
  CAS-BOT-BC172515  Clarkia purpurea subsp. quadrivulnera Alice Eastwood; John Thomas Howell 1937-6-22 4722 Humboldt Near Harris Comment
  UC144078  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1909-7-31 3030 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC505118  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1932-6-26 10264 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC1196987  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy July, 1908 2784 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges 762 Comment
  CAS-BOT-BC172388  Clarkia purpurea subsp. viminea Richard Spellenberg 1965-6-13 1109 Humboldt Along road on E side of Trinity River, about 3/4 mile S. of hwy. through Hoopa Indian Reservation Comment
  HSC73748  Clarkia rhomboidea M. A. Baker 1980-7-15 2948 Humboldt Near Whiting Ridge. 1341 Comment
  HSC39550  Claytonia exigua subsp. exigua Thomas W. Nelson 1976-6-14 2701 Humboldt S of Mt. Lassic, Signal Peak 1646 Comment
  SEINET9136596  Claytonia perfoliata subsp. mexicana C. E. Fellows 1972-4-29 482 Humboldt Ca 20 meters below the W side of the road to Kneeland, 8 miles ESE of Eureka, 3.1 miles above town of Freshwater. 610 Comment
  HSC98515  Claytonia rubra subsp. rubra Cara Witte 2007-5-8 6 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  HSC96937  Claytonia rubra subsp. rubra Elizabeth Kimbrough, Whitney Meier 2007-6-13 7 Humboldt Grouse Mtn., 1 mi. E of NF1 on FS Rd. 5N04 1524 Comment
  CHSC67764  Claytonia sibirica Vernon H. Oswald 1997-2-12 8308 Humboldt Elk Head, N end of Trinidad State Beach. Locally abundant on moist, shaded floor of Sitka spruce- red alder woodland along trail leading to the bluffs at Elk Head. 30 Comment
  HSC100606  Claytonia sibirica Carl C. Marshall Mar 1886 150 Humboldt Everywhere. Comment
  HSC17721  Claytonia sibirica V. G. Vieira 1963-4-24 5 Humboldt Essex Pond Comment
  HSC55276  Claytonia sibirica Overton, Butler 1979-8-2 12679 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  POM118717  Claytonia sibirica Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UC1052461  Claytonia sibirica H. E. Parks Apr 1933 1421 Humboldt Spruce Cove; Trinidad Comment
  UCR122364  Claytonia sibirica George K. Helmkamp, E. A. Helmkamp 2001-7-8 6975 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
  SD38113  Claytonia sibirica Marie Cummings 1933-5-22 110 Humboldt Near Blockburg Comment
  JEPS61603  Clintonia andrewsiana W. L. Jepson 1932-8-9 16540 Humboldt Bull Creek 106 Comment
  JEPS55586  Clintonia andrewsiana W. Roderick and H. M. Beard 1960-5-29 Humboldt 7 road mi se of Carlotta Comment
  UC180199  Clintonia andrewsiana Joseph P. Tracy 1914-5-17 4473 Humboldt between Ryans Slough and Freshwater Creek (about Humboldt Bay, at the Cumens Claim); Northern Coast Region, Humboldt Bay 304 Comment
  HSC98870  Collinsia linearis Cara Witte 2007-6-20 313 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  UC54920  Collinsia linearis Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  HSC49699  Collinsia linearis J. O. Sawyer 1977-7-3 3021 Humboldt At tish Tang at Tang Creek on Rd. S of Gorgan Hole Comment
  UC1238971  Collinsia linearis Freed W. Hoffman 1946-5-24 967 Humboldt Blue Lake to Willow Creek (North Coast Ranges, Trinity Forest); North Coast Ranges, Trinity Forest Comment
  UC594150  Collinsia linearis S. K. Harris, J. P. Tracy 1936-6-10 3266 Humboldt w of the South Fork of the Trinity River near its mouth South Fork of the Trinity River 640 Comment
  HSC41245  Collinsia parviflora Brad Klipfel 1974-5-27 391 Humboldt Horse Mtn. Comment
  UC582457  Collinsia rattanii Joseph P. Tracy 1925-5-20 7032 1/2 Humboldt Northern Coast Ranges, Laribee Valley Laribee Valley; Northern Coast Ranges, Laribee Valley 701 Comment
  HSC100662  Collinsia sparsiflora Carl C. Marshall Jun 1887 427 Humboldt Spruce Grove. Comment
  RSA411155  Collomia grandiflora Anstruther Davidson 1918-07 3352 Humboldt Eel River. Comment
  UC1197856  Collomia grandiflora Joseph P. Tracy 1933-8-30 13051 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC60868  Collomia grandiflora Harley P. Chandler June, 1901 1361 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  JEPS71016  Collomia grandiflora Lincoln Constance 1934-6-12 863 Humboldt n bank of river <at> Bull Cr. road; South Fork Eel River, Bull Creek Region, Dyerville Comment
  HSC97480  Collomia heterophylla Cara Witte 2007-5-31 146 Humboldt Off National Forest 1. Near Board Camp Mountain. Approximately 4 miles south of Brays Opening and 1/2 west of road. 1489 Comment
  HSC102167  Collomia tracyi M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1079 Humboldt Patterson Meadows 1555 Comment
  HSC74404  Collomia tracyi Gail Newton 1980-6-28 745 Humboldt Near Mad River Butte. 1536 Comment
  JEPS26243  Collomia tracyi Joseph P. Tracy 1940-7-7 16670 Humboldt on rocky banks Grouse Mt. 1463 Comment
  UC1197865  Collomia tracyi Joseph P. Tracy 1939-8-16 16416 Humboldt gravelly places near Clear Lake; North Coast Ranges 1524 Comment
  JEPS41827  Conyza canadensis W. L. Jepson 1936-8-13 17897 Humboldt Philipsville South Fork Eel River Comment
  HSC27513  Corallorhiza maculata J. D. Ackerman, A. Montalvo 1973-7-5 99 Humboldt 17 mi. E of Hoopa, on Grogan Hole Rd. Comment
  UC14974  Corallorhiza mertensiana Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5625 1/2 Humboldt Bald Mt. Northern Coast Ranges Comment
  UC1173700  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1939-8-16 16418 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC101147  Corethrogyne filaginifolia W. R. Dudley 1899-6-1 s.n. Humboldt Eureka [Penninsula] Peninsula Comment
  HSC49140  Corethrogyne filaginifolia J. O. Sawyer, R. J. Cole 1978-10-10 3318 Humboldt W of Coast Guard road at intersection with Samoa Bridge Comment
  UC1223036  Corethrogyne filaginifolia Joseph P. Tracy 1950-6-18 18764 A Humboldt 1 mi w of town Petrolia Comment
  UC205460  Cornus glabrata Joseph P. Tracy 1919-9-14 5210 Humboldt at Lack Pond (Trinity R. Valley near Willow Creek); Northern Coast Ranges, Trinity R. Valley 152 Comment
  HSC57031  Cornus nuttallii Overton, Butler 1979-7-24 9656 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC154072  Cornus nuttallii Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5635 Humboldt Hoopa Mt. North Coast Ranges, Hoopa Mt. Comment
  UC205636  Cornus nuttallii Joseph P. Tracy 1919-9-14 5213 Humboldt near its mouth Willow Creek - Northern Coast Ranges, Willow Creek (a tributary of Trinity) Comment
  HSC82313  Cornus sericea subsp. sericea Thomas W. Nelson, Linda M. Barker 1977-6-3 3385 Humboldt Floodplain of Mad River at S end of Mad River Bridge. 53 Comment
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May 7 2013
  HSC70754  Cornus sessilis R. York 1980-5-17 529 Humboldt Near Le Perron Peak. 415 Comment
  HSC26855  Coronopus didymus Thomas W. Nelson 1971-12-5 315 Humboldt 3300 block of D St. in Eureka Comment
  CAS-BOT-BC180313  Corylus cornuta subsp. californica L. B. Kildale 1926-9-5 2638 Humboldt Lasseck's Peaks - on trail between Canal Goat Camp and Red Peak 1676 Comment
  RSA33407  Corylus cornuta var. californica Doris K. Kildale 1927-3-25 3004 Humboldt Humboldt Hill Comment
  SEINET200866  Cotula australis J. P. Tracy 1900-5-26 804 Humboldt Immediate Vicinity of Eureka, Comment
  SEINET3817858  Cotula coronopifolia H. E. Parks 24211 Humboldt Little River State Park Comment
  UCR48592  Cotula coronopifolia R. D. Goeden, Don W. Ricker 1987-9-2 870902- 16 Humboldt North Coast, Loleta, at bay on Cannibal Road 3 Comment
  HSC5434  Cotula coronopifolia R. D. Modafferi 1965-3-14 12 Humboldt 1.4 mi. S of Trinidad on old Hwy. 101 0 Comment
  POM126151  Crataegus suksdorfii Joseph P. Tracy 1922-6-18 6097 Humboldt Valley along head of S Yoga Creek. 762 Comment
  CAS-BOT-BC291482  Crepis capillaris M. Louise Hutchinson 1913-5-1 s.n. Humboldt Eureka Comment
  JEPS89545  Crepis capillaris Dean W. Taylor 1991-9-15 12288 Humboldt along Hwy. 101 near mouth of Tom Creek (Big Lagoon); N. Coast Ranges, Big Lagoon 3 Comment
  CAS-BOT-BC291486  Crepis capillaris H. E. Parks 1941-8-1 24189 Humboldt Vicinity of Trinidad Comment
  HSC49083  Crepis capillaris Patricia Shesgreen 1978-8-5 128 Humboldt Along 16th St., 100 yards E of Union St., Arcata Comment
  RSA32733  Crepis capillaris A. A. Heller 1923-7-9 13777 Humboldt Near Blue Lake, 5 miles from Arcata. Comment
  SDSU3878  Crepis capillaris D. F. Howe 1961-7-31 3098 Humboldt 37.7 miles south of Eureka on #101. Comment
  UC1222677  Crocosmia X crocosmiiflora Joseph P. Tracy 1950-8-31 19344 Humboldt Eureka; at 3rd and I Streets Comment
  UCD138689  Crocosmia X crocosmiiflora T. C. Fuller 1968-7-30 17446 Humboldt northwest corner of overpass of Hwy 101 freeway to Garberville, 1 mile south of Fields Landing. 1524 Comment
  HSC102928  Cryptantha M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 900 Humboldt Patterson Meadows 1566 Comment
  HSC100401  Cryptantha flaccida Carl C. Marshall Jun 1887 456 Humboldt Near Harris. Comment
  UC175774  Cryptantha intermedia Mrs. M. H. Manning 1900-1 Humboldt Hupa Valley Comment
  HSC104443  Cryptantha leiocarpa Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 3 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  UC175791  Cryptantha torreyana Joseph P. Tracy 1909-8-1 3071 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  NY1043284  Cuscuta salina C. C. Harris 1941-8-28 1175 Humboldt Humboldt Bay near Table Bluffs Comment
  JEPS47121  Cuscuta suaveolens Joseph P. Tracy 1918-9-29 5113 Humboldt 2 mi above mouth of South Fork of Eel River (Myers Ranch); Northern Coast Ranges, South Fork of Eel River 60 Comment
  UC642236  Cyclospermum leptophyllum Joseph P. Tracy 1927-8-20 8333 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River (on Van Duzen River) 91 Comment
  HSC97640  Cynoglossum grande C. Witte 2007-5-8 9 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1397 Comment
  UC582617  Cynoglossum occidentale Joseph P. Tracy 1936-8-8 15125 Humboldt on Ridge 2 mi. e. Grove's Prairie (Trinity Summit); Trinity Summit 1524 Comment
  CDA1946  Cynosurus cristatus E. C. Whitney 1959-9-16 Humboldt J. Zanone, Petrolia. 0 Comment
  UC1103241  Cynosurus cristatus J. P. Tracy 1896-6-22 27 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  HSC38430  Cynosurus echinatus Dennis Anderson, J. P. Smith 1971-6-18 - 1061 Humboldt Chezem Rd., 3 mi. E of bridge over Redwood Creek Comment
  RSA91852  Cynosurus echinatus Joseph P. Tracy, H. E. Parks 1933-6-11 12542 Humboldt Near Miranda 152 Comment
  HSC7210  Cyperus eragrostis D. E. Anderson 1963-9-29 2848 Humboldt Fish Lake Comment
  UC213007  Cyperus erythrorhizos Joseph P. Tracy 1920-8-15 5364 Humboldt Klamath R. at mouth of Bluff Creek; Northern Coast Ranges, Klamath R. 152 Comment
  UC668036  Cyperus squarrosus Joseph P. Tracy 1931-9-7 9662 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  HSC97625  Cystopteris fragilis Cara Witte 2007-5-31 161 Humboldt Buck Flat. Intersection of National Forest 1 and 5N01. 1547 Comment
  UC275410  Cystopteris fragilis Joseph P. Tracy 1925-11-25 7325 Humboldt near S Fork Trinity River Valley; Northern Coast Ranges 182 Comment
  HSC14668  Cytisus scoparius T. W. Beck 1963-4-22 34 Humboldt Humboldt Meridian. Camp Bauer just outside the entrance, Korbel. Comment
  UC303181  Cytisus scoparius Joseph P. Tracy 1923-6-18 6289 Humboldt Petrolia; Northern Coast Ranges 60 Comment
  CDA4074  Cytisus scoparius T. C. Fuller 1961-3-22 5939 Humboldt North slope, Humboldt Hill, Eureka. 0 Comment
  CAS-BOT-BC189740  Danthonia californica Joseph P. Tracy 1928-6-24 8463 Humboldt Northern Coast Ranges. Valley of South Yager Creek. 762 Comment
  UC183807  Danthonia californica Joseph P. Tracy 1911-7-7 3385 Humboldt 3 mi nw junction of Willow Creek with Trinity River (meadows on mountain side, near Beebe's Ranch); Northern Coast Ranges 914 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
  UC1541540  Danthonia unispicata J. P. Tracy, H. E. Parks 1934-6-14 11028 Humboldt Horse Mountain 1371 Comment
  HSC25997  Darmera peltata Thomas W. Nelson 1970-9-3 211 Humboldt Mad River. Comment
  HSC12359  Daucus carota C. Kline 1970-11-28 84 Humboldt Hwy 101, 1 mi S of Arcata Comment
  HSC59680  Daucus carota George Kirn 1977-10-1 Humboldt Eureka, open bayfront field 1/2 mi E of Hwy 255 6 Comment
  RSA296790  Daucus pusillus J. P. Smith, T. Nelson 1977-6-30 s.n. Humboldt Samoa Peninsula just east of the drag strip. Comment
  HSC100617  Delphinium Carl C. Marshall Apr 1886 187 Humboldt Vicinity of Humboldt Bay. Comment
  SEINET4855208  Delphinium decorum subsp. tracyi Unknown 1930-5-25 789 Humboldt Laribee Valley. 915 Comment
  UC1196315  Delphinium decorum subsp. tracyi Joseph P. Tracy 1935-7-14 14070 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC97204  Delphinium decorum subsp. tracyi Kiera A. Freeman, Heather J. Perry 2007-6-13 8 Humboldt 1 mi. E of NF1 on FS 5N04 1585 Comment
  UC467723  Delphinium decorum subsp. tracyi Mrs. M. H. Manning 1902-3-31 Humboldt open gravelly place across supply creek <on> west side of road Hupa Comment
  SEINET12099544  Delphinium hesperium J. P. Tracy 1950-1 18875 Humboldt 3 mi N of Blocksburg Comment
  CAS-BOT-BC9961  Delphinium nudicaule Doris K. Kildale 1926-3-21 1582 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC9957  Delphinium nudicaule Duart V. Brown 1947-4-2 28 Humboldt Near Sweed Creek, Trinity River Comment
  HSC45097  Delphinium nudicaule R. Sutherland 1978-4-24 13 .24478 Humboldt Kinsey Ridge 311 Comment
  HSC98172  Delphinium nudicaule Allan R. Marshall 1962-5-11 9 Humboldt 50 yds. in front of N side of Hwy. 299 610 Comment
  RSA259574  Delphinium trolliifolium Thomas W. Nelson, James Nelson 1973-5-28 942 Humboldt McKeown Ranch north of Dinsmore. Comment
  JEPS23300  Delphinium trolliifolium Joseph P. Tracy 1927-6-5 8099 Humboldt valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC1542893  Delphinium trolliifolium Harold E. Parks June 1930 1366 Humboldt near Rohnerville Comment
  HSC9587  Deschampsia cespitosa D. J. McVean 1965-5-22 82 Humboldt Dike by Mad River Slough, just N of Somoa Blvd. Comment
  POM207102  Deschampsia cespitosa Jos Burtt Davy, W. C. Blasdale 6194 Humboldt Lake Mendocino Comment
  UCSC000008  Deschampsia cespitosa Randall Morgan 2005-6-24 s.n. Humboldt 1 mi W of Bayside - Eureka Comment
  UCR32148  Deschampsia cespitosa subsp. beringensis David J. Keil 1983-7-2 17301 Humboldt Humboldt Bay salt marsh at Arcata Corporation Yard [600 G St.] Comment
  HSC96496  Deschampsia cespitosa subsp. cespitosa Gordon Leppig 1998-7-19 983 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  CHSC102216  Deschampsia danthonioides Peter F. Zika 2009-6-15 24488 Humboldt North Coast; near Hatchery Road, S of town of Blue Lake. 20 Comment
  HSC13422  Deschampsia elongata D. C. Juve 1964-5-16 37 Humboldt Campbell Creek Ranger Station, Camp Tish-Tang, Hwy 96. Comment
  POM207195  Deschampsia elongata Jos Burtt Davy, W. C. Blasdale 1899-08 5516 B Humboldt Near Pepperwood Comment
  UC1103214  Deschampsia elongata J. P. Tracy 1900-7-4 874 Humboldt sand hills of Ocean Beach at Samoa; , Ocean Beach Comment
  HSC8356  Dicentra formosa Eugene Andreuccetti 1964-4-11 18 Humboldt 1/2 mi. S of Garberville on Hwy. 101 Comment
  JEPS9738  Dicentra formosa Joseph P. Tracy 1933-7-16 12794 Humboldt South Fork Mt. North Coast Ranges (near top at county line) 1676 Comment
  UC1196303  Dicentra formosa Joseph P. Tracy 16208 Humboldt vicinity Carlotta 30 Comment
  CAS-BOT-BC402410  Dicentra formosa subsp. formosa Milo S. Baker 1923-7-15 7 Humboldt Eureka Swamp, spot near Hayes and M. Sts. Comment
  UCD95519  Dicentra formosa subsp. formosa P. B. Kennedy 1929-6-14 s.n. Humboldt Arcata, Range of California Barrel Co. Comment
  CAS-BOT-BC402539  Dicentra pauciflora Joseph P. Tracy 1933-7-11 12691 Humboldt North Coast Ranges. Grouse Mountain 1524 Comment
  UC666885  Dichelostemma capitatum Joseph P. Tracy 1927-5-8 7966 Humboldt Phillipsville 121 Comment
  UC1198163  Dichelostemma congestum Joseph P. Tracy 1914-5-14 4446 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  CAS-BOT-BC502556  Dichelostemma congestum P. E. Goddard 1907-5-29 b. 109 Humboldt Van Duzen Comment
  UC1950449  Dichelostemma congestum Barbara Ertter with Thomas J. Delendick 1987-5-16 6919 Humboldt Vista Point just W of Berry Summit on Hwy 299, open grassy S-facing slope Comment
  HSC70662  Dichelostemma ida-maia Gail Newton 1980-7-14 1545 Humboldt Near Deadman Ridge 1097 Comment
  UC666911  Dichelostemma ida-maia Joseph P. Tracy 1927-5-30 8083 Humboldt Garberville 152 Comment
  CAS-BOT-BC501030  Dichelostemma ida-maia Alice Eastwood; John Thomas Howell 1937-6-22 4729 Humboldt Near Alder Point Comment
  HSC3026  Dichelostemma ida-maia William J. Ferlatte, B. D. Rogers 1966-6-15 2102 Humboldt Plympton Ranch 915 Comment
  POM277001  Dichelostemma ida-maia Lyman Benson 1930-7-18 2188 Humboldt W of Willow Creek, Seaward N Coast Mtn range, W of Trinity. 457 Comment
  UC535744  Digitalis purpurea Eleanor Armstrong 1174 Humboldt Richardson Grove Comment
  UCD63953  Digitaria ischaemum Joseph P. Tracy 1950-9-22 19371 Humboldt Klamath River, near Slate Creek, below Orleans 8 miles. 121 Comment
  CAS-BOT-BC150341  Diplacus aurantiacus E. C. Johnston 1931-8-1 s.n. Humboldt Klamath River to Arcata Comment
  CAS-BOT-BC150349  Diplacus aurantiacus L. R. Abrams 1916-7-18 6141 Humboldt At Trinidad Comment
  SEINET8208225  Diplacus kelloggii Marshall Ross 1942-5-5 1255 Humboldt Trinity National Forest; Hoopa Indian Reservation; 4.6 miles north of Hoopa. 244 Comment
  CDA6683  Dipsacus fullonum D. G. Kelch 2007-7-25 7 .509 Humboldt Along Hwy 299 between Lord-Ellis Summit and Hwy 96. Comment
  UC249509  Dipsacus sativus Joseph P. Tracy 1922-8-16 6105 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  UC535766  Disporum hookeri Eleanor Armstrong 1934-5-27 Humboldt Richardson Grove Comment
  SEINET3885742  Disporum smithii H. E. Parks, S. T. Parks 1952-1 24452 Humboldt Spruce Cove, Trinidad.; 0 61 Comment
  CDA15326  Distichlis spicata R. Spadoni 1998-10-5 s.n. Humboldt North Coast; Common to dominant perennial in grasslands around salt marsh near Loleta. 0 Comment
  HSC26352  Distichlis spicata T. O. Osborne 1970-4-5 68 Humboldt Flat-iron rock, 3/4 mi. NW of Trinidad Lighthouse. Comment
  UC203975  Dodecatheon hendersonii Joseph P. Tracy 1918-5-28 4947 Humboldt High Prairie on Bald Mountain Northern Coast Ranges, High Prairie on Bald Mountain 1066 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
  HSC3848  Downingia elegans J. P. Tracy 1927-7-17 8270 Humboldt Three Cabins: lower W foothills of Chaparral Mtn. 457 Comment
  UC1199179  Draba verna Joseph P. Tracy 1932-5-1 9841 Humboldt along Van Duzen River (Alton); North Coast Ranges, along Van Duzen River 30 Comment
  HSC74471  Draperia systyla Gail Newton 1980-7-23 1739 Humboldt Near Packsaddle Ridge 1463 Comment
  HSC59622  Drymocallis glandulosa J. P. Smith, Steve Selva 1970-6-30 4148 Humboldt 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-BC71054  Dryopteris expansa Mrs. H. C. Cantelow 1936-5-18 s.n. Humboldt Crokscrew Tree, 8 miles north of Orick 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
  UC1100621  Eleocharis acicularis Malcolm A. Nobs and S. Galen Smith 1949-8-9 1243 Humboldt town of Blue Lale Mad River (marshy pond on s side) Comment
  UC1116223  Eleocharis acicularis Joseph P. Tracy 1934-7-13 13393 Humboldt Dow's Prairie; dried pond 60 Comment
  UC213006  Eleocharis bella Joseph P. Tracy 1919-5-31 5180 Humboldt shores of Lack Pond, near Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC183687  Eleocharis obtusa Joseph P. Tracy 1911-7-7 3401 Humboldt 3 mi NW of jct. of Willow Creek with Trinity River, at the meadows on mountain side Northern Coast Ranges 914 Comment
  UC666875  Eleocharis obtusa Joseph P. Tracy 1927-8-7 8319 Humboldt Lack Pond, opposite mouth of Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC113134  Eleocharis pachycarpa Malcom A. Nobs; Stanley Galen [S. Galen] Smith 1949-8-11 1346 Humboldt Marshes on eastern side of Big Lagoon. Comment
  HSC7346  Eleocharis parvula D. E. Anderson 1961-9-9 1791 Humboldt Along S end of Hwy. 101 causeway over Big Lagoon Comment
  POM126088  Eleocharis parvula Joseph P. Tracy 1924-8-3 6744 Humboldt Stone Lagoon Comment
  HSC58661  Elymus elymoides var. elymoides G. L. Clifton, Griswold 1979-7-1 11948 Humboldt Near Horse Trail Ridge, close to the town of Hoopa. 516 Comment
  POM295856  Elymus glaucus Lyman Benson 1929-7-14 1793 Humboldt Weott Ranger Station S. Fork Eel River Comment
  RSA86744  Elymus glaucus subsp. virescens Joseph P. Tracy 1927-6-26 8213 Humboldt Stone Lagoon 6 Comment
  UC526791  Elymus glaucus subsp. virescens Joseph P. Tracy 1927-6-26 8215 Humboldt Stone Lagoon Northern Coast Region (bluffs facing ocean) 6 Comment
  HSC9729  Elymus mollis subsp. mollis S. J. Moore 1965-5-3 2 Humboldt Gold Beach Comment
  UC526849  Elymus multisetus H. E. Parks and Joseph P. Tracy 1934-7-6 11141 Humboldt Iaqua Northern Coast Ranges 609 Comment
  HSC8766  Elymus trachycaulus subsp. trachycaulus J. P. Tracy 1926-7-5 7736 Humboldt Valley of South Yager Creek 762 Comment
  UC1103295  Elytrigia repens Joseph P. Tracy 1925-9-13 7267 Humboldt Eel River North Coast Ranges (mouth, on river bank) 6 Comment
  UC1414225  Empetrum nigrum subsp. hermaphroditum Gary S. Lester 1975-4-6 604 Humboldt n Trinidad (Megwil Point); Trinidad State Beach, Elk Head 15 Comment
  HSC56983  Epilobium brachycarpum Overton, Marvin Butler 1979-7-23 9524 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC43233  Epilobium brachycarpum R. Sutherland 1976-8-18 2 .18876 Humboldt Briceland 183 Comment
  RSA40412  Epilobium brachycarpum P. A. Munz 1948-8-13 12348 Humboldt Highway 229, 21 miles E of Blue Lake. 762 Comment
  JEPS31511  Epilobium campestre Joseph P. Tracy 1938-7-5 16004 Humboldt open flat by old Strong's District School House (in dried pond bed, 5 mi e of town); Carlotta 45 Comment
  RSA44304  Epilobium canum subsp. latifolium H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mts. 1524 Comment
  HSC49628  Epilobium ciliatum subsp. ciliatum Thomas W. Nelson, Jane P. Nelson 1979-7-3 4943 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  UC203989  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1918-7-6 5046 Humboldt near Humboldt-Mendocino County line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  JEPS39219  Epilobium ciliatum subsp. ciliatum W. L. Jepson 1936-8-15 17899 Humboldt 2 mi e Carlotta Comment
  UC549761  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1932-7-15 10575 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC562504  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1933-8-6 12941 Humboldt along stream French Camp Ridge 1066 Comment
  HSC39947  Epilobium ciliatum subsp. watsonii Linda M. Barker 1976-7-5 1637 Humboldt 3 mi. W of Arcata Comment
  RSA26250B  Epilobium ciliatum subsp. watsonii I. L. Wiggins 1940-7-10 9487 Humboldt Table Bluff Comment
  UC562516  Epilobium densiflorum Joseph P. Tracy 1934-7-9 13352 Humboldt bed of dry pond Dobbyn Creek 152 Comment
  UC1222858  Epilobium densiflorum Joseph P. Tracy 1950-6-18 18843 Humboldt Davis Creek Cape Mendocino (ditch, s of point of Cape) 3 Comment
  UC205637  Epilobium hallianum Joseph P. Tracy 1919-9-18 5234 Humboldt Trinity Summit (Northern Coast Ranges) Comment
  RSA181877  Epilobium hallianum Joseph P. Tracy 1931-6-28 9589 Humboldt Northern Coast Ranges: Buck Mountain, lower foothills of its northwest slope 762 Comment
  HSC58173  Epilobium minutum G. L. Clifton, Griswold 1979-8-2 12252 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  RSA259564  Epipactis gigantea D. E. Anderson, J. P. Smith 1971-6-28 J- 1224 Humboldt Growing along Mad River ca. 2 mi. south of Blue Lake. Comment
  HSC99646  Equisetum laevigatum R. W. Becking 1984-4-3 Humboldt Samoa, N Spit, US Coast Guard dunes 3 Comment
  CAS-BOT-BC57791  Equisetum telmateia Joseph P. Tracy 1934-6-28 13268 Humboldt By Salmon Creek. 9 Comment
  MACF015290  Equisetum telmateia subsp. braunii Barbara Joe 1958-8-24 27239 Humboldt Garbervills Comment
  RSA183500  Equisetum telmateia var. braunii D. V. Sanford 1963-3-23 23 Humboldt [no locality information provided] Comment
  HSC37908  Erechtites glomeratus Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  UC1223013  Erigeron aliceae Joseph P. Tracy 1949-8-11 18487 Humboldt 1.5 mi se of Snow Camp (along creek running through fir woods near the C. M. Preston place) 1463 Comment
  CAS-BOT-BC27342  Erigeron breweri var. klamathensis Joseph Prince Tracy 1937-7-24 15515 Humboldt Trinity Summit, 2 miles SE of Devil's Hole 1584 Comment
  CAS-BOT-BC296110  Erigeron foliosus var. confinis Marcus E. Jones 1931-7-16 29149 Humboldt Junction east of Arcata Comment
  RSA12520  Erigeron foliosus var. confinis C. B. Wolf 1934-7-3 5916 Humboldt 21 mi. from Orick on Weitchpec Rd. Comment
  UC34181  Erigeron foliosus var. confinis Harley P. Chandler 1901-6-1 1427 Humboldt Klamath River 243 Comment
  CDA14246  Erigeron foliosus var. foliosus P. Haggard 1998-6-12 s.n. Humboldt North Coast Ranges; Margin of Hwy 36, immed. W of Bridgeville along Van Duzen River. 0 Comment
  CAS-BOT-BC214591  Erigeron philadelphicus John Thomas Howell 1931-6-17 6717 Humboldt At mouth of Van Duzen River Comment
  JEPS41379  Erigeron philadelphicus var. philadelphicus W. L. Jepson 1932-7-1 16409 Humboldt Bull Creek 106 Comment
  HSC100896  Eriogonum Carl C. Marshall Jun 1887 492 Humboldt Near Harris. Comment
  POM279950  Eriogonum latifolium Lyman Benson 1929-7-15 1811 Humboldt Clam Beach, Trinidad. Comment
  UC727179  Eriogonum latifolium A. A. Heller 1924-7-22 13873 Humboldt Samoa Comment
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Sep 29 2006
  POM319175  Eriogonum latifolium Patricia Wilder 1968-8-21 4400 Humboldt Northern coastal arm of Humboldt Bay, ca. 2 miles SW of Samoa. Humboldt Bay drainage area. 8 Comment
  RSA286308  Eriogonum latifolium Robert F. Thorne 1974-7-29 45074 Humboldt Samoa Dunes. Comment
  UC55505  Eriogonum luteolum var. luteolum P. E. Goddard 1901-7-12 82 Humboldt Hupa 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
  CAS-BOT-BC261495  Eriogonum nudum var. nudum Harley P. Chandler 1901-6-1 1491 Humboldt Klamath River 304 Comment
  HSC47965  Eriogonum nudum var. nudum Brad Klipfel 1974-8-2 542 Humboldt Horse Mtn. Comment
  UC1198138  Eriogonum nudum var. nudum Joseph P. Tracy 1930-6-15 8766 Humboldt Dobbyn Creek 152 Comment
  UCR32155  Eriogonum nudum var. nudum David J. Keil 1983-7-1 17272 Humboldt North Coast Range, Bull Creek Flats [Mattole] Road, c. 13 mi. west of junction with US Hwy 101 Comment
  RSA178577  Eriogonum nudum var. nudum Joseph P. Tracy 1950-06 18762 Humboldt At Domingo Hill (east slope from the summit). Near Petrolia; hills between town and ocean Comment
  SEINET11938122  Eriogonum nudum var. nudum H. P. Chandler 1901-1 1491 Humboldt Klamath River 305 Comment
  CAS-BOT-BC261722  Eriogonum nudum var. oblongifolium Henry M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region Comment
  CAS-BOT-BC261726  Eriogonum nudum var. oblongifolium Doris K. Kildale 1925-6-28 813 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC269863  Eriogonum nudum var. pubiflorum Carl D. Duncan 1920-9-21 336 Humboldt Hoopa Comment
  HSC54720  Eriogonum umbellatum Overton, Butler 1979-7-26 10095 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  HSC43082  Eriogonum umbellatum var. argus Brad Klipfel 1973-8-3 305 Humboldt N Trinity Mtn. 1860 Comment
  SEINET13095713  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8345 Humboldt Along U.S. Forest Service Road 1 at south end of Whiting Ridge, about 0.5 air miles west-northwest of High Salt Ground and 9.3 air miles west of Hyampom. 1296 Comment
  UC1198157  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy 1932-7-12 10459 Humboldt Head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  HSC40976  Eriophorum crinigerum J. O. Sawyer 1970-6-24 2216 Humboldt Big Hill Rd., E of Hoopa 1189 Comment
  HSC58062  Eriophorum crinigerum G. L. Clifton, Griswold 1979-8-1 11939 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1692 Comment
  HSC35819  Eriophyllum lanatum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1915 Humboldt Beside Hwy. 36, 1 mi. W of Grizzley Creek Comment
  HSC36636  Eriophyllum lanatum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1906 Humboldt End of road to Pine Mtn. Comment
  HSC5592  Eriophyllum lanatum D. E. Anderson 1963-3-16 2384 Humboldt Scotia Bluffs Comment
  HSC32327  Eriophyllum lanatum var. achilleoides D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5668 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. 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
  UC90307  Eriophyllum lanatum var. achilleoides W. W. Price 1890-7-1 Humboldt Mad River Comment
  UC1223130  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1950-6-15 18790 Humboldt 7 mi n Harris; Jenk's Ranch Comment
  UC507068  Eriophyllum lanatum var. achilleoides Lincoln Constance 1933-5-21 E 34 Humboldt 1 mi n Garberville; South Fork of Eel River Comment
  HSC67897  Eriophyllum lanatum var. arachnoideum J. P. Smith 1973-5-26 6839 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC129578  Eriophyllum lanatum var. arachnoideum Joseph Burtt Davy and Walter C. Blasdale Jun 16 1899-Jan 1 1900 5563 Humboldt Alton North-Western California, Alton Comment
  HSC97629  Eriophyllum lanatum var. grandiflorum Cara Witte 2007-6-4 205 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  HSC35608  Eriophyllum lanatum var. lanceolatum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2020 Humboldt French Camp, Bald Hills Comment
  HSC47494  Erodium cicutarium Sheila Logan 1978-4-9 18 Humboldt Fieldbrook, 0.5 mi. E of McKinleyville on Murray Rd. 122 Comment
  UC1222612  Eryngium aristulatum var. aristulatum Joseph P. Tracy 1951-6-21 19528 Humboldt in bed of former Goose Lake (back of Everett Beck house on ranch, Hydesville); Hydesville, , Everett Beck ranch house Comment
  UC492245  Erysimum capitatum Joseph P. Tracy 1932-7-18 10706 Humboldt head Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  HSC67181  Erysimum capitatum var. capitatum Thomas W. Nelson, James Nelson 1980-6-10 5433 Humboldt Along E side of Red Mtn. 1372 Comment
  HSC28486  Erysimum menziesii J. D. Ackerman 1973-3-27 54 Humboldt 1.5 mi. S of Samoa, alongside Hwy. Comment
  SEINET13693817 Image available Erythranthe dentata Noel H. Holmgren, Liew Fah Seong 1969-1 3613 Humboldt Prairie Creek Redwoods, in forest above coast near Del Norte County line Comment
  CAS-BOT-BC383051  Erythranthe guttata David B. Lowry 2005-5-16 PCK Humboldt Along Kneeland road, east of Slater Road 709 Comment
  HSC41237  Erythronium californicum Brad Klipfel 1974-5-27 374 Humboldt Horse Mtn. Comment
  HSC44396  Erythronium californicum Brad Klipfel 1975-5-24 629 Humboldt Horse Mtn. Comment
  UC201391  Erythronium californicum Joseph P. Tracy 1918-5-1 4897 Humboldt Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC104324  Erythronium californicum James Regan, Humboldt Redwood Co., LLC 2007-4-30 22 Humboldt Kneeland, near Kneeland Airport 854 Comment
  HSC71161  Erythronium californicum Thomas W. Nelson 1977-6-15 3421 Humboldt Along USFS rd connecting FS 6N01 to 5N10, just N of Clear Lake 1372 Comment
  JEPS502  Erythronium grandiflorum Joseph P. Tracy 1933-7-11 12708 Humboldt Grouse Mountain 1524 Comment
  UC13769  Erythronium grandiflorum W. C. Blasdale 1896-6-9 Humboldt top S. Fork Mountain Comment
  CAS-BOT-BC502808  Erythronium oregonum Lena E. Bowley 1941-4-1 s.n. Humboldt unspecified Comment
  JEPS61877  Erythronium revolutum Ethel Tracy 1907-1 Humboldt Kneeland Prairie Comment
  HSC16769  Eschscholzia californica T. W. Beck 1963-4-27 38 Humboldt Humboldt Meridian, Camp Bauer, Korbel Comment
  UC668058  Eschscholzia californica Joseph P. Tracy 1938-6-17 15956 Humboldt s point of the Cape (near ocean shore); Cape Mendocino 3 Comment
  UC1222990  Eucephalus tomentellus Joseph P. Tracy 1941-8-24 17043 Humboldt near, (openings in fir forest) McKay Camp; South Fork Mountain 1676 Comment
  SEINET11855621  Euchiton gymnocephalus J. P. Tracy 1948-9-26 18232 Humboldt at S end of Fickle Hill, 6 mi SE of Arcata 610 Comment
  UC1196541  Euchiton involucratus Joseph P. Tracy 1948-9-26 18232 Humboldt 6 mi se Arcata (at s end of Fickle Hill); Fickle Hill 609 Comment
  JEPS20472  Euchiton sphaericus Joseph P. Tracy 1936-8-23 15162 Humboldt Carlotta 30 Comment
  RSA42022  Euchiton sphaericus H. C. Cantelow 1936-8-29 1567 Humboldt 1 mile off Riv. [High.?] S. Fork Eel River Bridge, 17 miles N of Garberville Comment
  CAS-BOT-BC206804  Euonymus occidentalis John Thomas Howell 1936-8-29 12887 Humboldt Eel River 16 miles N of Garberville Comment
  UC34837  Euonymus occidentalis var. occidentalis Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  HSC36589  Euphorbia peplus John Rehling 1975-5-4 55 Humboldt H.S.U. campus Comment
  UC774610  Eurybia radulina Carl B. Wolf 1937-9-8 9301 Humboldt 11 mi w of, Bull Creek -Petrolia Road Redwood Highway; North Coast Range 304 Comment
  UCSB1573  Fallopia sachalinensis Parks, H.; Parks, S. 1952-07 Humboldt South of the Elk River Bridge on Highway 10 Comment
  HSC98158  Festuca arundinacea L. M. Malloy 1965-5-16 34 Humboldt Samoa, 1/4 mi. NW of the corner of Thunder Rd. and The Hard Way. Comment
  SEINET260371 Image available Festuca californica R. Spellenberg 1992-7-10 10246 Humboldt E edge county 8 mi WSW of Salyer 6 mi S of Berry Summit on CA Hwy 299; USFS 1372 Comment
  UC53434  Festuca californica unknown 1896-6-9 Humboldt South Fork Mts. Northern Coast Ranges Comment
  RSA10106  Festuca californica var. californica Joseph P. Tracy 1926-5-30 7518 Humboldt Willow Creek Canyon. 610 Comment
  HSC102226  Festuca idahoensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1146 Humboldt Andy's Camp 1564 Comment
  RSA121314  Festuca idahoensis H. S. Yates 1936-6-17 5697 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  UC187103  Festuca idahoensis Joseph P. Tracy 1911-7-6 3338 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  RSA256712  Festuca occidentalis D. E. Anderson 1972-6-20 5723 B Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  UCD66132  Festuca occidentalis A. A. Beetle; G. L. Stebbins Jr. 1942-6-2 3466 Humboldt 2 miles west of Bridgeville, banks above Van Dusen River. Comment
  UCD66163  Festuca occidentalis A. H. Murphy 1950-5-10 Humboldt E. M. Cottrell Ranch, Roth road. Comment
  HSC9952  Festuca occidentalis D. J. Wilder 1965-4-24 8 Humboldt Along road to Maple Creek from Korbel. Comment
  CAS-BOT-BC278967  Festuca rubra H. S. Yates 1936-6-17 5697 Humboldt Lower northwest slope of Buck Mountain 792 Comment
  UC247503  Festuca rubra A. S. Hitchcock 1915-7-13 469 Humboldt back of Humboldt Bay; Eureka Comment
  UCD66383  Festuca rubra Malcolm A. Nobs; S. Galen Smith 1949-8-3 1171 Humboldt Around Fields Landing. Comment
  CAS-BOT-BC282522  Festuca subbiflora Harley P. Chandler 1901-5-1 1184 Humboldt Humboldt Bay 30 Comment
  CAS-BOT-BC278621  Festuca subulata Joseph P. Tracy 1935-7-27 14295 Humboldt Trinity Summit. Open places at McKay Prairie 1584 Comment
  UCD66438  Festuca subulata Joseph P. Tracy 1937-7-25 15541 Humboldt Trinity Summit, Head of Little Hors-Linto Creek. 1371 Comment
  CHSC19732  Fragaria chiloensis D. J. Jager 1965-5-12 66 Humboldt Ca. 1/2 mi. north of Trinidad on bluff above ocean. 45 Comment
  HSC18619  Fragaria chiloensis D. E. Anderson 1962-3-30 1954 Humboldt Coastal area of Prairie Creek State Park Comment
  HSC55336  Fragaria vesca Griswold, Butler 1979-7-12 7183 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC71666  Fragaria vesca Gail Newton 1980-6-24 553 Humboldt Near Ladder Rock 1500 Comment
  CAS-BOT-BC457927  Fragaria vesca subsp. californica Doris Kildale Gillespie 1931-6-7 10643 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  HSC102047  Fragaria virginiana M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 950 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  UC492173  Fragaria virginiana subsp. platypetala Joseph P. Tracy 1932-7-16 10616 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  CAS-BOT-BC52742  Frangula californica subsp. californica Doris K. Kildale 1926-6-13 2162 Humboldt Briceland Bridge 1/2 mi. west of Garberville. 114 Comment
  CAS-BOT-BC59965  Frangula purshiana A. A. Heller 1923-7-9 13775 Humboldt About 5 mi. e. of Arcata on the road to Blue Lake. Comment
  CAS-BOT-BC59997  Frangula purshiana C. B. Wolf 1937-8-13 9260 Humboldt N. coast range, 11 mi. e. of Hoopa Valley on New Road towards Trinity summit. 1524 Comment
  UCD112819  Frangula purshiana Linda M. Barker 1976-7-5 1648 Humboldt Lanphere-Christensen Dunes 3 miles west of Arcata. Comment
  POM188359  Fraxinus latifolia Marcus E. Jones 1931-7-16 28864 Humboldt Junction, East of Arcata. Comment
  RSA171981  Fraxinus latifolia Robert F. Thorne 1957-9-2 18992 Humboldt Burlington State Park, just S of Weott. Comment
  UC162719  Fraxinus latifolia Joseph P. Tracy 1911-7-7 3377 Humboldt 3 mi nw junction of Willow Creek with Trinity River (and near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC1541354  Fritillaria W. K. Parks July 1933 1399 Humboldt South Fork Mountain Comment
  HSC33079  Fritillaria affinis Thomas W. Nelson, J. D. Ackerman 1974-5-14 1268 Humboldt Beside old Samoa-Crannell railroad bed adjacent to the Mad River Slough N of Emerson Mill Comment
  HSC38259  Fritillaria affinis Thomas W. Nelson 1976-4-3 2285 Humboldt Hwy 36 at east end of Swain's Flat Comment
  UC14992  Fritillaria affinis J. P. Tracy 1901-4-26 1045 Humboldt immediate vicinity of Eureka (Humboldt Hill); Humboldt Hill 0 Comment
  UC176688  Fritillaria affinis Joseph P. Tracy 1913-6-17 4179 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  UC429292  Fritillaria affinis Mrs. M. H. Manning 1901-1 9 Humboldt near Hupa Comment
  CAS-BOT-BC130445  Fritillaria purdyi Doris K. Kildale 1926-3-21 1575 Humboldt Kneeland Prairie Comment
  HSC79054  Fritillaria purdyi D. K. Imper 1984-5-16 Humboldt 0.25 mi. E of Friday Camp Rd., 0.25 mi. N of junction with 6N01 1220 Comment
  JEPS52710  Galium ambiguum subsp. ambiguum Lauramay T. Dempster and G. L. Stebbins Jr. 1963-7-9 3854 Humboldt along Hwy 36 about 1 mi w Mad River crossing (n-facing slope); Low Gap Sunday School 792 Comment
  HSC45634  Galium aparine Diane L. Reed 1978-4-22 30 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC70633  Galium bolanderi R. York 1980-5-18 583 Humboldt Near Black Mtn 792 Comment
  HSC70981  Galium bolanderi Gail Newton 1980-7-22 1664 Humboldt Near Devils Backbone 1554 Comment
  HSC41597  Galium bolanderi Thomas W. Nelson, Jane P. Nelson 1977-9-3 3719 Humboldt Along ridge between Bear Creek and Blanket Creek 1494 Comment
  UC1196089  Galium bolanderi Joseph P. Tracy 1933-7-9 12642 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC19807  Galium californicum subsp. californicum Lauramay T. Dempster, G. L. Stebbins 1963-7-9 3849 Humboldt E of Bridgeville, 4.4 mi. on Hwy. 36 to Dinsmore 457 Comment
  SEINET10876857  Galium californicum subsp. californicum J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13009 Humboldt Leggett; Redwoods River Resort, 75000 Highway 101. Comment
  JEPS52844  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-10-27 3957 Humboldt along stream on road to Madrone Campground Redwood Highway, Richardson Grove Comment
  JEPS52848  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-7-10 3858 Humboldt 6.8 mi w mouth of Bull Creek; Bull Creek (settlement) 91 Comment
  UC169006  Galium parisiense Joseph P. Tracy 1911-7-4 3278 Humboldt near mouth of Willow Creek; Northern Coast Ranges, valley of Trinity River 152 Comment
  UC602541  Galium parisiense Joseph P. Tracy 1913-6-10 4083 Humboldt below Bridgeville (on river); Northern Coast Ranges, Van Duzen River, Rogers Ranch 152 Comment
  JEPS52748  Galium porrigens var. porrigens Lauramay T. Dempster and G. L. Stebbins 1963-7-10 3863 Humboldt 4.2 mi n Redway (along US 101, w-facing slope above Eel River) 91 Comment
  UC169021  Galium trifidum Joseph P. Tracy 1911-7-7 3370 Humboldt three mi nw junction of Willow Creek and Trinity River (near Beebe's Ranch, meadows on mt. side); Northern Coast Ranges 914 Comment
  HSC58008  Galium triflorum G. L. Clifton 1979-7-31 11804 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  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
  UC602538  Galium triflorum Joseph P. Tracy 1932-7-17 10654 Humboldt woods near Corral Prairie; Trinity Summit 1584 Comment
  CAS-BOT-BC303392  Gamochaeta ustulata Joseph P. Tracy 1936-8-23 15163 Humboldt Carlotta 60 Comment
  HSC91914  Gamochaeta ustulata E. Mackey 1987-7-19 Humboldt Patrick's Point State Park Comment
  CAS-BOT-BC303396  Gamochaeta ustulata M. S. Jussel 1931-5-2 s.n. Humboldt Near Garberville Comment
  HSC36442  Garrya elliptica J. P. Smith 1976-1-25 8506 Humboldt End of Murray Rd. Comment
  HSC89422  Garrya elliptica P. A. Daly 1984-5-13 18 Humboldt Along trail at Trinidad Head 61 Comment
  JEPS66720  Garrya elliptica Mr. and Mrs. Geo. Parrish 1930-5-21 Humboldt Trinidad Comment
  UC1550379  Garrya elliptica Gerald V. Dahling Jun 1973 1229 Humboldt about 10 mi n Trinidad (along Highway 101) Comment
  RSA21606  Garrya fremontii Carl B. Wolf 1937-8-13 9228 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  UC668298  Garrya fremontii Joseph P. Tracy 1933-3-5 10918 Humboldt Alton North Coast Ranges (along Van Duzen River) 30 Comment
  UCD39985  Garrya fremontii Rodney Gale Myatt 1971-9-22 1200 Humboldt Along Salmon River, southeast of Somes Bar, and northeast of Hoopa Reservation. 426 Comment
  RSA12458  Gastridium phleoides C. B. Wolf 1934-6-30 5835 Humboldt 7 miles from Shelter Cove on road to Briceland. 152 Comment
  UCD66720  Gastridium phleoides Joseph P. Tracy 1936-6-10 14926 Humboldt West of mouth of South Fork of Trinity River. 457 Comment
  HSC103127  Gaultheria ovatifolia M. Mesler 2009-7-31 811 Humboldt South Fork Mtn. FS 1, 11.8 miles north of intersection with 4N12, just north of mile marker 34. 1486 Comment
  HSC53968  Gaultheria ovatifolia Griswold, Butler 1979-7-11 7025 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  RSA167447  Gaultheria ovatifolia Joseph P. Tracy 1951-6-14 19417 Humboldt Snow Camp. 1402 Comment
  CAS-BOT-BC58918  Gaultheria shallon Doris K. Kildale 1928-5-19 5200 Humboldt Chalk Mountain Comment
  HSC7818  Gaultheria shallon C. B. Wolf 1927-8-22 804 Humboldt 1 mi. S of Orick, on hills near ocean Comment
  RSA273393  Gaultheria shallon Brad W. Klipfel 1974-9-7 560 Humboldt Horse Mtn. Comment
  UC1120968  Gaultheria shallon A. E. Wieslander 1931-5-21 211 Humboldt on ridge near Kneeland Comment
  SEINET11991660  Gaultheria shallon Unknown 1977-1 s.n. Humboldt S end of Patrick's Point State Park, ca 0.2 mi W of Hwy 101 and 5 mi N of Trinidad 61 Comment
  HSC54671  Gayophytum diffusum subsp. parviflorum Overton, Butler 1979-7-25 9910 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  JEPS27600  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-8-30 13046 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC162854  Genista monspessulana J. P. Tracy 1906-4-22 2413 Humboldt immediate vicinity Eureka 0 Comment
  UCD105749  Genista monspessulana W. Williams 1951-5-11 s.n. Humboldt location unknown. Comment
  UC562301  Gentiana affinis var. ovata Joseph P. Tracy 1930-7-27 9110 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  CHSC115701  Gentiana sceptrum L. P. Janeway; B. Castro 2015-9-7 11855 Humboldt North Coast. Big Lagoon fen/bog; just off the southwest corner of Big Lagoon and draining into Big Lagoon. 3 Comment
  HSC41183  Gentiana sceptrum Robert M. Specht 1976-10-6 546 Humboldt S shore of Big Lagoon on E side of Hwy. 101 Comment
  POM247167  Gentiana sceptrum Joseph P. Tracy 1927-8-22 8338 Humboldt Bald Mountain, near High Prairie. 1067 Comment
  UC1197401  Geranium carolinianum Joseph P. Tracy 1926-5-2 7421 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC668045  Geranium dissectum Joseph P. Tracy 1935-5-25 13876 Humboldt Fort Seward 106 Comment
  HSC95593  Geranium dissectum Andrea Pickart 2002-5-24 110 Humboldt CDFG's Mad River Slough Wildlife Area, Arcata Bottoms 0 Comment
  UC492183  Geum macrophyllum var. perincisum Joseph P. Tracy 1932-7-14 10540 Humboldt at Corral Prairie, Klamath Mountains, Trinity Summit Corral Prairie; Klamath Mountains, Trinity Summit, Corral Prairie 1524 Comment
  JEPS69518  Gilia capitata subsp. capitata Joseph P. Tracy 1935-6-23 13995 Humboldt French Camp Ridge 1066 Comment
  UC60880  Gilia capitata subsp. capitata Harley P. Chandler June, 1901 1447 Humboldt Klamath River North Coast Ranges, Klamath River 243 Comment
  BLMAR309  Gilia capitata subsp. capitata Jennifer Anthony-Wheeler 2002-6-20 309 Humboldt Gilham butte, Growing along Rim Rd 731 Comment
  CDA40044  Gilia capitata subsp. pacifica Gordon Leppig 2003-6-25 1990 Humboldt The Pacific Lumber Company, THP 1-02-306 HUM. East side headwaters of Brushy Creek. Comment
  RSA47173  Gilia capitata subsp. pacifica Doris K. Kildale 1927-5-15 s.n. Humboldt Cape Mendocino Comment
  HSC104328  Gilia capitata subsp. pacifica James Regan, Humboldt Redwood Co., LLC 2010-6-23 24 Humboldt Monument Ridge, near Brushy Creek 915 Comment
  CAS-BOT-BC225469  Gilia millefoliata Bolemanson 1907-5-15 s.n. Humboldt Samoa Comment
  CAS-BOT-BC225474  Gilia millefoliata Joseph P. Tracy 1936-5-30 14833 Humboldt Near Samoa on Humboldt Bay 6 Comment
  HSC16985  Gilia millefoliata R. T. Forester 1963-5-6 49 Humboldt 1 mi. S of Fairhaven on Samoa Rd. Comment
  HSC34464  Gilia millefoliata J. P. Smith 1975-5-11 8077 Humboldt Samoa Peninsula, just N of The Coast Guard Station boundary. Comment
  HSC48068  Gilia millefoliata Thomas W. Nelson 1978-4-23 3877 Humboldt NW of Samoa Comment
  UC906683  Gilia tricolor subsp. tricolor Joseph P. Tracy 1943-5-9 17419 1/2 Humboldt at Willow Creek Trinity River Valley, at Willow Creek 152 Comment
  UC604651  Gilia tricolor subsp. tricolor Joseph P. Tracy 1938-5-1 15733 Humboldt Willow Creek Trinity River Valley, at Willow Creek 152 Comment
  JEPS76827  Glaux maritima L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1978-5-27 4806 Humboldt 1.2 mi n Eureka Bridge; Samoa Peninsula Comment
  SD42578  Glehnia littoralis Carl B. Wolf 1937-6-18 Humboldt Centerville Beach 3 Comment
  RSA550922  Glyceria declinata R. F. Thorne, P. Everett 1965-8-9 35331 Humboldt Clam Beach County Park: along highway. 3 Comment
  HSC76548  Glyceria elata Denis Kearns 1981-7-23 433 Humboldt Near Whiteys Peak. 1524 Comment
  UC1145104  Glyceria grandis Joseph P. Tracy 1936-6-28 15024 Humboldt Lake Prairie; Bald Mountain 1066 Comment
  RSA168834  Gnaphalium canescens subsp. thermale Joseph P. Tracy 1942-8-30 17303 Humboldt Humboldt County: Trinity River Valley, at Willow Creek. 152 Comment
  JEPS34040  Gnaphalium palustre W. L. Jepson 1936-8-17 17919 a Humboldt 2 mi s of Field's Landing (near Still's Ranch, marsh) Comment
  UC630459  Gnaphalium palustre H. E. and S. T. Parks 1937-7 24026 Humboldt Spruce Cove Northwestern California, Trinidad, Spruce Cove Comment
  HSC98011  Gnaphalium palustre Cara Witte 2007-8-9 632 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  HSC39939  Goodyera oblongifolia Linda M. Barker 1976-8-24 1679 Humboldt 3 mi. W of Arcata Comment
  HSC55277  Goodyera oblongifolia Overton, Butler 1979-8-2 12685 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1326261  Goodyera oblongifolia Milo S. Baker 1947-8-10 11906 Humboldt along trail to Trinity Summit from end of Forest Road from Hoopa Trinity Summit 1432 Comment
  JEPS4220  Gratiola ebracteata Joseph P. Tracy 1930-5-18 8697 Humboldt Rohnerville 152 Comment
  CAS-BOT-BC304741  Grindelia hirsutula Edward Lee 1934-8-17 1148 Humboldt East shore of Big Lagoon, 35 miles north of Eureka 3 Comment
  CAS-BOT-BC304749  Grindelia hirsutula Doris K. Kildale 1925-7-10 944 Humboldt Dyerville 45 Comment
  CAS-BOT-BC304758  Grindelia hirsutula Carl B. Wolf 1937-9-9 9305 Humboldt Coast, 2 mi. So. of Cape Mendocino 6 Comment
  HSC89904  Grindelia hirsutula Leonel Arguello 1989-7-14 Humboldt Lanphere-Christensen Dunes Preserve 3 mi. W of Arcata. Comment
  HSC90778  Grindelia hirsutula Peter Sorensen 1976-6-28 Humboldt Woodley Island Comment
  JEPS93180  Grindelia hirsutula Margriet Wetherwax and Kevin Downing 1993-8-9 2458 Humboldt Eureka Slough Humboldt Bay (s side, near Bayside Rd. and Myrtle Marsh, at end of road to church, on e side of bay, just n of Eureka) 5 Comment
  SBBG62631  Grindelia hirsutula R. Hartwell 1938-8-5 Humboldt Mattole Rd on coast between Capetown and Petrolia, along beach Comment
  OBI16402  Grindelia stricta var. stricta Carl B. Wolf 1937-9-12 9333 Humboldt Humboldt bay, 1 mi S of Arcata on road to Eureka 3 Comment
  HSC74384  Hackelia bella M. A. Baker 1980-6-28 2473 Humboldt Near Mad River Buttes 1445 Comment
  UC449871  Hackelia bella P. E. Goddard 1906-6 677 Humboldt Sasseck Peak Comment
  HSC3670  Hackelia setosa J. P. Tracy 1937-7-25 15547 Humboldt Trinity Summit; on ridge 2 mi. E of Grove's Prairie 1524 Comment
  HSC73632  Helenium bigelovii M. A. Baker 1980-7-22 3100 Humboldt Near Grogan Hole 152 Comment
  HSC99088  Helenium bigelovii Cara Witte 2008-8-6 1010 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1486 Comment
  CAS-BOT-BC306873  Helenium bolanderi Ira L. Wiggins 1932-7-19 5891 Humboldt About 1 1/2 miles north of Trinidad Head 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
  UC275468  Helminthotheca echioides Joseph P. Tracy 1925-11-1 7297 Humboldt Shively Northern Coast Ranges, Shively 60 Comment
  HSC49372  Hemitomes congestum T. Jimerson, J. Pageau 1979-6-15 581 Humboldt West of FS 11N21, on the boundary between Sections 27 and 28. 762 Comment
  HSC38709  Hemizonella minima J. P. Smith 1976-5-29 8819 Humboldt Horse Mtn. 1402 Comment
  HSC57194  Hemizonella minima Griswold, Butler 1979-7-11 6983 Humboldt Near Snow Camp Lake 1393 Comment
  HSC73539  Hemizonella minima Gail Newton 1980-7-14 1475 Humboldt Near Last Chance Ridge. 1219 Comment
  CAS-BOT-BC306184  Hemizonia congesta subsp. congesta J. Clausen 1932-9-18 679 Humboldt 4 miles southwest of Capetown on the road to Petrolia 213 Comment
  CAS-BOT-BC310002  Hemizonia congesta subsp. tracyi Alice Eastwood; John Thomas Howell 1937-6-23 4805 Humboldt Little Van Duzen River Comment
  JEPS12642  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1927-5-8 7983 Humboldt vicinity of Garberville 121 Comment
  UC1223087  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1950-6-25 18902 Humboldt 3 mi s Burr Valley 1158 Comment
  UC1223092  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1946-11-17 17664 Humboldt river bar of Eel at mouth of Van Duzen River; Eel River Comment
  RSA254780  Hemizonia tracyi Thomas W. Nelson 1973-5-28 967 Humboldt McKeown Ranch north of Dinsmore. Comment
  HSC21503  Heracleum maximum S. R. Johnson 1965-3-14 8 Humboldt 1 mi. N of Luffenholtz Beach Comment
  HSC55744  Heracleum maximum G. L. Clifton, Terry Griswold 1979-7-26 10258 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  HSC55976  Heracleum maximum G. L. Clifton 1979-7-31 11369 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC99511  Heracleum maximum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 173 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-BC310180  Hesperevax sparsiflora var. brevifolia Joseph P. Tracy 1905-4-30 2173 Humboldt Northern Coast Region. At Humboldt Bay Comment
  SEINET10460687  Heterocodon rariflorum Lincoln Constance Constance 915 Humboldt GRASSHOPPER PEAK 3000 Comment
  BLMAR190  Heteromeles arbutifolia Donald Hazlett 1994-6-7 190 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC67012  Heterotheca oregona var. rudis J. P. Smith 1971-10-9 4987 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC79434  Heuchera micrantha Kenneth Clark 1981-4-5 1228 Humboldt Above S fork Dead Man's Gulch 114 Comment
  UC673200  Heuchera micrantha var. diversifolia Lincoln Constance, Reed C. Rollins 1942-5-12 2883 Humboldt 6 mi ne Weitchpec (mouth of Bluff Creek); Klamath-Siskiyou Region 152 Comment
  RSA0066093  Heuchera micrantha var. diversifolia Thomas W. Nelson 1977-6-15 3423 Humboldt Along Forest Rd 5N10 just N of jct with Rd 6N08. 1372 Comment
  CAS-BOT-BC312395  Hieracium albiflorum W. R. Dudley 1899-6-19 s.n. Humboldt Scotia Comment
  HSC98711  Hieracium albiflorum Cara Witte 2007-7-25 577 Humboldt Forest Service Road 5N10. 2.5 miles east of intersection with National Forest 1. 1327 Comment
  RSA170205  Hieracium albiflorum Joseph P. Tracy 1948-9-5 18181 Humboldt High ridge east of Grove's Prairie near Elk Camp on the Grizzly Camp Road. Trinity Summit. 1524 Comment
  CAS-BOT-BC316005  Hieracium nudicaule Joseph P. Tracy 1937-8-7 15620 Humboldt Bald Mt. 914 Comment
  UC165198  Hieracium scouleri Joseph P. Tracy 1908-7-1 2891 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges 914 Comment
  POM118322  Hierochloe occidentalis Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  RSA604019  Hierochloe occidentalis R. R. Halse 1996-3-26 5020 Humboldt Redwood National Park; at junction of Bald Hills Road and Holter Ridge Bike Route, 11 mile SE of U.S. Hwy. 101. 708 Comment
  SEINET270546  Hierochloe occidentalis Richard R. Halse 1996-3-26 5020 Humboldt Redwood National Park ; At junction of Bald Hills Road and Holter Ridge Bike Route 11 miles southeast of US Highway 101 708 Comment
  HSC36309  Hippuris vulgaris David Sohrakoff 1972-11-12 1 Humboldt Clam Beach ponds Comment
  RSA0016044  Hippuris vulgaris John R. Keith 1973-5-15 s.n. Humboldt Approximately 200 yards east of junction of Guintoli Ln. and West End Rd. Comment
  RSA0016046  Hippuris vulgaris L. R. Abrams, R. C. Bacigalupi 1922-6-25 8266 Humboldt Big Lagoon, south of Orick. Comment
  CAS-BOT-BC280739  Holcus lanatus Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  CHSC31289  Holcus lanatus Mark Stopher 1980-7-11 116 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  HSC38838  Holcus lanatus R. Sutherland 1976-8-6 19 .6876 Humboldt Briceland. 183 Comment
  POM203237  Holcus lanatus M. S. Jussel 1931-5-2 s.n. Humboldt near Garberville Comment
  SEINET11683187  Holcus lanatus K. S. Erdman 1970-1 4805 Humboldt mouth of Ossagon Creek on Gold Beach Road, 2 mi W of US 101 (Redwood N.P.) Comment
  CAS-BOT-BC149896  Holodiscus discolor Carl B. Wolf 1937-9-9 9310 Humboldt North coast range, Wildcat Ridge, 6 3/10 mi. So. of Ferndale 304 Comment
  HSC48817  Holodiscus discolor Brad Klipfel 1973-7-31 231 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC72686  Holodiscus discolor J. P. Smith 1977-7-3 9260 Humboldt Six Rivers National Forest. FS Rd. 13N01, 3 mi. from its junction with Hwy. 36 549 Comment
  HSC73250  Holodiscus discolor M. A. Baker 1980-5-18 1317 Humboldt Near Black Mtn. 1006 Comment
  UC1198705  Holodiscus discolor Joseph P. Tracy 1912-7-31 3932 Humboldt Northern Coast Ranges, Buck Mountain near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  UC154503  Holodiscus discolor Harley P. Chandler 1901-6-1 1314 Humboldt North Coast Ranges, Hupa Indian Reserve Hupa Indian Reserve; North Coast Ranges, Hupa Indian Reserve 152 Comment
  UCSB24337  Holodiscus discolor var. discolor Tracy, Joseph 1936-8-7 Humboldt Trinity summit, 2 miles southeast of Devil's Hole Comment
  UCD85279  Hordeum brachyantherum A. A. Beetle; J. P. Tracy, G. L. Stebbins 1942-6-2 3463 Humboldt 1 mile E of Alton. Comment
  UC1103487  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1942-9-20 17326 Humboldt 2 mi S of (town) Field's Landing 6 Comment
  UC1132099  Hordeum brachyantherum subsp. brachyantherum H. S. Yates 1936-2-16 5680 Humboldt 1 mi ne Samoa; Eureka Quad. Comment
  RSA624782  Hordeum murinum subsp. glaucum Gordon Leppig, Sylvia Leppig 1999-4-28 1127 Humboldt Arcata Bottoms; Mad River Rd. 1K North of lanphere Rd 2 Comment
  HSC45256  Hordeum vulgare M. Alcasas 1978-5-27 109 Humboldt On access road to Eel River Sawmills, 0.5 mi. from Hwy. 101 30 Comment
  SEINET10841409  Horkelia californica Lincoln Constance, Alan A. Beetle; Joseph P. Tracy 1940-5-17 Constance 2613 Humboldt Branches reddish, ascending, petals white. With amelanchier and prunus, Serpentine? Soil of openings in cutover pinus ponderosa, pseudotsuga, quercus Garryana forest. Larrabee valley 762 Comment
  UC1198713  Horkelia californica Joseph P. Tracy 1910-7-24 3159 Humboldt s side Humboldt Hill; Humboldt Bay 152 Comment
  SEINET11911570  Horkelia sericata H. P. Chandler 1901-1 1543 Humboldt Klamath River 427 Comment
  HSC96008  Horkelia tridentata Juha Pykala, D. H. Norris 1987-6-11 1647 Humboldt Hoopa Indian Reservation, Big Hill Rd. 1 mi. SE of Big Hill 869 Comment
  UC902134  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1947-7-5 17792 Humboldt Mud Springs Trinity Summit 1341 Comment
  HSC41272  Hosackia oblongifolia Brad Klipfel 1974-6-25 418 Humboldt Horse Mtn., along the creek just above Horse Mtn. mine. Comment
  HSC98966  Hosackia oblongifolia var. oblongifolia Cara Witte 2007-6-12 239 Humboldt Horse Mountain Botanical Area. Near mine area. Forest Service Road 6N38. 1360 Comment
  HSC100884  Hosackia parviflora Carl C. Marshall May 1887 421 Humboldt Blocksburg. Comment
  SEINET958139  Hosackia pinnata J. P. Tracy 1937-1 15375 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UCD106050  Hosackia rosea Joseph P. Tracy 1949-6-20 18321 Humboldt Near Boynton Prairie 12 miles southeast of Arcata. Comment
  CHSC68777  Hydrocotyle ranunculoides Vernon Oswald 1997-6-5 8545 Humboldt Robert Gearheart Marsh in the Arcata Marsh and Wildlife Sanctuary. 1 Comment
  UC1103413  Hydrocotyle ranunculoides Joseph P. Tracy 1940-10-5 16744 Humboldt mouth of Little River 3 Comment
  HSC99396  Hydrophyllum fendleri var. albifrons K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 45 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1586870  Hydrophyllum fendleri var. albifrons Juha Pykala and D. H. Norris 1987-6-11 1587 Humboldt w of Crogan Hole (n of Trinity Mountain Wilderness, s of North Trinity Mountain) 1554 Comment
  HSC32280  Hydrophyllum occidentale D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5622 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC57677  Hydrophyllum occidentale G. L. Clifton, Griswold 1979-7-25 10877 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  JEPS1639  Hydrophyllum tenuipes Joseph P. Tracy 1937-7-25 15538 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC668262  Hypericum anagalloides Joseph P. Tracy 1936-6-28 15029 Humboldt Lake Prairie at Bald Mt. 1066 Comment
  UC1222165  Hypericum concinnum Joseph P. Tracy 1950-5-24 18688 Humboldt where Knight's Valley enters Alexander Valley (and leaves Muyacama Creek) Comment
  RSA60489  Hypericum mutilum John H. Thomas 1949-6-12 899 Humboldt Near Klamath River, 1/2 mile N of town of Orleans Comment
  CAS-BOT-BC401234  Hypericum perforatum Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek Comment
  UC169053  Hypochaeris glabra Joseph P. Tracy 1912-7-25 3812 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC312888  Hypochaeris glabra Barry Silver 1986-5-18 602 Humboldt Bull Creek Flats Road, 100 yds. w. of junction with Highway 101 Comment
  HSC37940  Hypochaeris radicata Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  UCD133455  Hypochaeris radicata Linda M. Barker 1976-9-3 1692 Humboldt 3 miles west of Arcata. Comment
  HSC15970  Iliamna latibracteata H. E. Parks, S. T. Parks Jun 1935 5593 Humboldt E side of Prairie Creek, N of Orick Comment
  UCD126379  Iliamna latibracteata D. C. Hagar 1957-6-20 L 10 Humboldt Cedar Creek Divide, 5.5 miles east of Willow Creek. 1066 Comment
  RSA0004193  Iliamna latibracteata Doris K. Kildale 1926-7-5 2312 Humboldt Orick - 2 mi. north. Comment
  HSC48816  Ipomopsis aggregata Brad Klipfel 1973-7-31 230 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC909042  Ipomopsis aggregata Joseph P. Tracy 1933-7-25 12884 Humboldt Grouse Mtn Northern Coast Ranges 1524 Comment
  RSA67626  Iris Philip A. Munz 1951-7-15 16546 Humboldt dry slopes in woods, about 3 miles northeast of Willow Creek Comment
  RSA78186  Iris Rimo C. Bacigalupi 3414 Humboldt Under Pseudotsuga and Abies concolor, about Snow Camp meadow, ridge between Mad River and Redwood Creek (Bald Mountain) 1433 Comment
  RSA78187  Iris Rimo Bacigalupi 1951-6-14 3414 Humboldt Pseudotsuga and Abies concolor, about Snow Camp meadow, ridge between Mad River and Redwood Creek (Bald Mountain) 1433 Comment
  UC1196394  Iris douglasiana Joseph P. Tracy 1934-8-31 13644 Humboldt Kneeland Prairie 762 Comment
  UCSB28085  Iris douglasiana Phelps, M. 1972-3-19 Humboldt 1.5 mi. from Garberville; along Old Briceland Rd; 0.5 mi. north of roadside 213 Comment
  RSA136681  Iris douglasiana Lee W. Lenz, E. K. Balls 1951-5-8 16508 Humboldt 14.7 miles north of Trinidad, Highway 101 6 Comment
  UC667113  Iris douglasiana Joseph P. Tracy 1933-5-20 12257 Humboldt Mattole Valley; Northern Coast Ranges 30 Comment
  CAS-BOT-BC123359  Iris humboldtiana Alice Eastwood; John Thomas Howell 1937-6-24 4857 Humboldt Road to Horse Mt. Comment
  UCD138802  Iris purdyi M. Wiesendanger 1928-4-7 912 Humboldt Redwood Highway, Lane's Redwood Flat. Comment
  RSA135894  Iris purdyi Lee W. Lenz 1953-5-17 18320 Humboldt 4.5 miles west of Willow Creek, Highway 299 Comment
  SD90234  Iris purdyi Benjamin C. Stone 1952-6-23 142 Humboldt Dense redwood forest in Humboldt Redwoods State Park. Comment
  CAS-BOT-BC123369  Iris tenax subsp. klamathensis Lee W. Lenz 1953-5-13 18296 Humboldt along Klamath River, Orleans 121 Comment
  UC673161  Iris tenax subsp. klamathensis Lincoln Constance and Reed C. Rollins 1942-5-12 2893 Humboldt 2 mi. n. Orleans (Klamath River); Klamath-Siskiyou Region, Klamath River 121 Comment
  UCR45387  Iris tenax subsp. klamathensis J. Pageau, T. Jimerson 1979-5-9 450 A Humboldt Orleans, Six Rivers National Forest In old clear cut o Foret Road 12N20, 1.5 mi west of its junction w/ F.R. 15N01 (G.O. Road). 793 Comment
  HSC44639  Iris tenuissima Diane L. Reed 1978-4-22 34 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC59440  Iris tenuissima Kenneth Clark 1979-5-16 307 Humboldt Tish Tang State Campground, 11 mi. N of Willow Creek on Hwy. 96 244 Comment
  CDA14235  Isatis tinctoria R. Spadoni 1998-5-11 s.n. Humboldt Hwy 299 near Blue Lake. 0 Comment
  HSC7449  Isolepis cernua D. E. Anderson 1961-9-2 1763 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  HSC7450  Isolepis cernua J. P. Tracy 1938-6-16 15942 Humboldt Trinidad 3 Comment
  RSA246913  Isolepis cernua Robert F. Thorne, Percy C. Everett 1965-8-7 35183 Humboldt Big Lagoon. 2 Comment
  UC1220310  Jaumea carnosa D. E. Anderson 1963-9-15 2812 Humboldt salt marsh bordering Humboldt Bay Comment
  POM126145  Juncus bolanderi Joseph P. Tracy 1924-7-13 6730 Humboldt Big Lagoon. 6 Comment
  RSA168857  Juncus capitatus Joseph P. Tracy 1948-6-13 18045 Humboldt Dobbyn Creek; At the former Will Perry Place. 152 Comment
  HSC74417  Juncus covillei Gail Newton 1980-8-10 2039 Humboldt Near Blake Mtn. 1707 Comment
  JEPS63894  Juncus effusus subsp. pacificus W. L. Jepson 1932-7-26 16404 Humboldt Bull Creek 106 Comment
  UC184085  Juncus effusus subsp. pacificus Joseph P. Tracy 1906-8-18 2548 Humboldt Eureka Northern Coast Region 0 Comment
  UC1152096  Juncus ensifolius Joseph P. Tracy 1937-8-7 15619 Humboldt about 1 mi n Murphy Meadow (e of Korbel); Bald Mountain Comment
  SEINET11789588  Juncus hesperius J. P. Tracy 1938-1 15938 Humboldt vicinity of Carlotta, 2 mi E of town 30 Comment
  HSC14030  Juncus lescurii David Adams 1960-7-10 Humboldt W of Mad River Slough 0 Comment
  UC184934  Juncus patens Joseph P. Tracy 1906-6-24 2506 Humboldt near Fields Landing (s slope of Humboldt Hill); Northern Coast Ranges, Humboldt Bay Region, Humboldt Hill 0 Comment
  UC1152084  Juncus tenuis Joseph P. Tracy 1928-6-24 8464 Humboldt Valley of South Yager Creek 762 Comment
  JEPS23776  Keckiella corymbosa Rimo Bacigalupi with Drs. Reino and Aloha Alava 1958-9-5 6929 Humboldt just s Richardson Grove (along U.S. Highway 101) 68 Comment
  JEPS57409  Keckiella corymbosa L. R. Heckard with T. I. Chuang 1968-7-5 Humboldt e of Garberville (along Mail Ridge Road, 4 1/2 mi n of its junction w Harris Road); Mail Ridge Road Comment
  RSA424319  Keckiella corymbosa Lester Rowntree 1931-7-21 s.n. Humboldt Mattole River Bridge 2 miles from Petrolia. Comment
  SBBG66501  Keckiella corymbosa L. Rowntree 1931-7-21 Humboldt Mattole River bridge, near Petrolia Comment
  UC566682  Keckiella corymbosa H. L. Mason 1928-7-14 4900 Humboldt near Garberville; East Fork of the Eel River Comment
  HSC36460  Keckiella lemmonii Thomas W. Nelson, B. Reinhardt 1975-7-30 2108 Humboldt Beside Rd. out Whiting Ridge Comment
  HSC55592  Kelloggia galioides G. L. Clifton, Griswold 1979-7-26 9366 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC70569  Kelloggia galioides M. A. Baker 1980-7-23 3164 Humboldt Near Orleans Mtn. 1859 Comment
  HSC98659  Lactuca biennis Cara Witte 2007-7-26 591 Humboldt National Forest 1 on Kinsey Ridge. 1/4 mile south of intersection with 4N06. Near power poles. 1283 Comment
  UC1051586  Lactuca serriola Joseph P. Tracy 1943-11-28 17460 Humboldt gravel bars <from> Alton to Fortuna; Eel River 15 Comment
  CDA39235  Lagophylla ramosissima D. Juliano 2013-8-1 PDR# 120 P06003679 Humboldt Vicinity of Carlotta, along Yager Creek, near Hwy. 36 & Central Ave. Comment
  JEPS19954  Lagophylla ramosissima Joseph P. Tracy 1934-7-9 13354 Humboldt Dobbyn Creek 152 Comment
  UC1199153  Lagophylla ramosissima Joseph P. Tracy 1930-10-12 9217 Humboldt Alton to Fortuna; Eel River 15 Comment
  HSC99476  Lapsana communis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 133 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC162576  Lathyrus jepsonii var. californicus Harley P. Chandler Jun 1910 1507 Humboldt Klamath River North Coast Ranges 426 Comment
  HSC40263  Lathyrus littoralis Linda M. Barker 1976-4-30 1409 Humboldt 3 mi. W of Arcata Comment
  RSA520696  Lathyrus littoralis Glenn A. Gorelick 1967-6-4 s.n. Humboldt Samoa Beach, near Eureka. Comment
  CDA27126  Lathyrus littoralis Gordon Leppig 1998-5-25 787 Humboldt Big Lagoon State Park. Coastal sand dune between ocean and Big Lagoon. Comment
  HSC33416  Lathyrus nevadensis var. nevadensis Thomas W. Nelson 1974-5-30 1346 Humboldt Along Hoopa-Redwood Valley Rd. Comment
  UC15342  Lathyrus nevadensis var. nevadensis State Survey 1800-1 Humboldt Comment
  UC709414  Lathyrus palustris Joseph P. Tracy 1940-9-26 16727 Humboldt Eureka Comment
  POM277779  Lathyrus polyphyllus Lyman Benson 1928-7-9 379 Humboldt Weott Ranger Station. Seaward N coast. Watershed- South Fork Eel Rivers. 61 Comment
  SEINET956147  Lathyrus polyphyllus Joseph P. Tracy 1948-1 18118 Humboldt In fir forest, 1.5 miles north of Forest Service Public Camp on Trinity Summit Road. 1280 Comment
  SBBG3374  Lathyrus vestitus H. and M. Dearing 1939-5-24 3420 Humboldt Dyerville-Mattole Rd Pass, W of Panther Gap Comment
  UC162788  Lathyrus vestitus Joseph P. Tracy 1906-6-24 2498 Humboldt near Field's Landing (s slope of Humboldt Hill); Northern Coast Region, Humboldt Bay Region, Humboldt Hill 0 Comment
  RSA405756  Lathyrus vestitus subsp. vestitus Unspecified 1924-7-11 s.n. Humboldt Arcata Comment
  CAS-BOT-BC325995  Layia carnosa David D. Keck; J. Clausen 1935-6-16 3381 Humboldt Mouth of Little River. 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
  CAS-BOT-BC534923  Lemna turionifera L. R. Abrams; R. Bacigalupi 1958-6-17 8271 Humboldt Big Lagoon south of Orick Comment
  UCD133973  Leontodon saxatilis Linda M. Barker 1976-6-1 1562 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC89074  Lepidium didymum M. S. Taylor 1980-10-9 3365 Humboldt Bed of Jacoby Creek, ca. 0.25 mile west of its junction with Arcata, in Bayside. 15 Comment
  RSA43876  Lepidium virginicum var. pubescens H. M. Pollard 1947-8-4 s.n. Humboldt Orleans Hotel grounds. Comment
  CAS-BOT-BC226528  Leptosiphon acicularis Doris K. Kildale 1927-7-10 3736 Humboldt Gans Prairie - Bald Hills road Comment
  HSC17097  Leptosiphon androsaceus William J. Ferlatte, B. D. Rogers 1966-6-15 2104 Humboldt Larabee Valley 762 Comment
  HSC49924  Leptosiphon androsaceus Maralyn O'Meara 1974-7-11 538 Humboldt Kneeland, Barry Ridge Comment
  HSC45831  Leptosiphon androsaceus J. P. Smith, J. O. Sawyer 1973-5-12 6685 Humboldt 3.8 mi. from Redwood Creek on Hoopa road Comment
  HSC73451  Leptosiphon ciliatus Gail Newton 1980-7-14 1466 Humboldt Near Last Chance Ridge. 1219 Comment
  RSA0096840  Leptosiphon filipes Joseph P. Tracy 1950-5-30 18710 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  OBI11411  Leptosiphon latisectus Joseph P. Tracy 1948-6-13 18048 Humboldt Near Harris (2 miles north) 610 Comment
  UCR122385  Lessingia filaginifolia var. californica George K. Helmkamp, E. A. Helmkamp 2001-7-8 6996 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  HSC58029  Leucanthemum vulgare G. L. Clifton 1979-7-31 11844 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  CDA7526  Leucanthemum vulgare T. C. Fuller 1958-6-17 1832 Humboldt Freeway at Arcata. 0 Comment
  HSC67896  Leucanthemum vulgare J. P. Smith 1973-5-26 6806 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UCR70876  Lewisia cotyledon var. howellii Lincoln Constance, R. C. Rollins 1942-5-12 2885 Humboldt MOuth of Bluff Creek, 6 mi NE of Weitchpec 152 Comment
  UC1100250  Leymus X vancouverensis Malcolm A. Nobs and S. Galen Smith 1949-8-3 1204 Humboldt ca 2 mi n Eureka (salt marshes bordering bay); Humboldt Bay Comment
  RSA295817  Leymus vancouverensis Lyman Benson 1929-7-15 1818 Humboldt Clam Beach, Trinidad Comment
  JEPS17503  Ligusticum apiifolium W. L. Jepson 1902-6-30 1959 Humboldt on Hupa Rd. near Redwook Creek Comment
  HSC56158  Ligusticum grayi G. L. Clifton, Terry Griswold 1979-8-1 12025 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC56325  Ligusticum grayi Overton, Butler 1979-8-2 12668 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC508400  Lilium columbianum L. R. Abrams; R. Bacigalupi 1922-6-25 8260 Humboldt Between Trinidad and Big Lagoon Comment
  CAS-BOT-BC130634  Lilium kelloggii Doris K. Kildale 1925-6-28 790 Humboldt Kneeland Prairie 609 Comment
  CAS-BOT-BC130682  Lilium occidentale Doris K. Kildale 1925-6-25 751 Humboldt Eden Tract - Eureka, Pine's Pasture Comment
  CAS-BOT-BC130686  Lilium occidentale Doris K. Kildale 1925-6-30 1337 Humboldt On road to Humboldt Country Club 7 mi from Eureka Comment
  SEINET3992214  Lilium pardalinum Unknown 1937-7-24 15533 Humboldt Trinity Summit, head of Little Hors-Linto Creek 1372 Comment
  CAS-BOT-BC130728  Lilium pardalinum Albert Vollmer 1949-7-1 2 Humboldt On Bald Mountain Comment
  HSC102580  Lilium pardalinum subsp. shastense M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1567 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC15581  Lilium rubescens Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  UC1198231  Lilium rubescens Joseph P. Tracy 1911-7-7 3419 Humboldt Brannan Mountain Northern Coast Ranges (viz ridge n of Willow Creek, between Willow Creek and Campbell Creek, near the summit) 1219 Comment
  CAS-BOT-BC133014  Lilium washingtonianum subsp. purpurascens 1901-7-24 s.n. Humboldt Near Arcata Comment
  HSC35754  Lilium washingtonianum subsp. purpurascens Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1998 Humboldt French Camp, Bald Hills. Comment
  HSC15789  Limnanthes douglasii Francis Winter 1960-5-7 Humboldt 3 mi. NE of Redwood Creek Ranch. 610 Comment
  HSC45598  Limnanthes douglasii subsp. nivea Diane L. Reed 1978-5-27 131 Humboldt Horse Mtn., Titlow Hill Rd., 2.7 mi. from Hwy. 299 Comment
  UC1191670  Limonium californicum Malcolm A. Nobs and S. Galen Smith 1949-8-3 1203 Humboldt salt marshes bordering Humboldt Bay (ca 2 mi n of Eureka) Comment
  UC907986  Linanthus androsaceus Joseph P. Tracy 1936-6-9 14879 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  JEPS58239  Linanthus bicolor Lincoln Constance 1934-6-4 817 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region Comment
  UC1198544  Linanthus bolanderi Joseph P. Tracy 1922-5-29 6073 Humboldt near head of South Yager Creek; Northern Coast Ranges 762 Comment
  JEPS79923  Linanthus ciliatus Joseph P. Tracy 12923 Humboldt s slope Grouse Mountain (towards Grouse Creek Basin); North Coast Ranges 1219 Comment
  UC524126  Linaria vulgaris Ira L. Wiggins 1932-7-19 5890 Humboldt near Trinidad Head Comment
  UCSB8725  Linaria vulgaris Phillips, Priscilla 1958-6-7 Humboldt Patrick's Point; near Trinidad Comment
  RSA20849  Linum angustifolium Carl B. Wolf 1937-6-18 8889 Humboldt Table Bluff between Humboldt Bay and Eel River. 30 Comment
  HSC95072  Linum bienne Andrea Pickart 2002-7-2 146 Humboldt King Salmon Sand Spit 0 Comment
  HSC46152  Linum bienne J. P. Smith 1973-5-26 6828 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  SEINET12185780  Linum micranthum J. P. Tracy 1950-1 18994 Humboldt on the Albee Rd., Buck Mountain, high meadow on W side, 3 mi S of Burr Valley 1158 Comment
  UC668020  Lipocarpha aristulata Joseph P. Tracy 1931-9-7 9650 B Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC1222184  Listera caurina Joseph P. Tracy 1951-6-26 19555 Humboldt Snow Camp Comment
  HSC36649  Listera cordata var. nephrophylla J. D. Ackerman 1975-6-4 445 Humboldt 4 mi. E of Hwy. 101 on Bald Hills Rd., Redwood National Park 335 Comment
  CAS-BOT-BC36106  Lithocarpus densiflorus var. densiflorus Joseph P. Tracy 1927-8-28 8361 Humboldt Near Boynton Prairie Comment
  RSA174006  Lithocarpus densiflorus var. densiflorus Robert F. Thorne 1957-9-2 19010 Humboldt Sandy margin of branch of the Eel River at Burlington State Park, just S of Weott. Comment
  UC667095  Lithophragma affine Joseph P. Tracy 1933-5-14 12174 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  UC38782  Lolium multiflorum Harley P. Chandler May, 1901 1103 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 30 Comment
  HSC89608  Lolium perenne M. Roantree 1985-5-2 33 Humboldt E side of Trinidad Head. Comment
  SEINET10657158  Lolium perenne A. Arthur Heller 1923-7-9 Heller 13779 Humboldt Plentiful in a salt marsh between Arcata and Eureka in alkaline soil Comment
  HSC39043  Lomatium ciliolatum var. ciliolatum Thomas W. Nelson, Jane P. Nelson 1976-5-31 2657 Humboldt County line, S of meadow along 5E27 just N of its junction with 1S07 1524 Comment
  SEINET189441  Lomatium dissectum Lincoln Constance, Alan A. Beetle; Joseph P. Tracy 1940-5-17 2617 Humboldt Lower slopes of Buck Mountain; near Eureka. 792 Comment
  HSC56077  Lomatium macrocarpum G. L. Clifton, Terry Griswold 1979-7-31 11756 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC67194  Lomatium macrocarpum Thomas W. Nelson, James Nelson 1980-6-10 5419 Humboldt Along road to Red Mtn., 0.5 mi. W of junction with Swayback Ridge Rd. 1372 Comment
  UC183624  Lomatium utriculatum Joseph P. Tracy 1912-6-9 3671 Humboldt Northern Coast Region, Alton 30 Comment
  OBI81634  Lomatium utriculatum Tracey Call, Viola Call 1964-6-19 2271 Humboldt Dry, west-facing hillside 1 mile north of Harris P.O. and ca 3.5 miles south of Harris Jct. Comment
  BLMAR649  Lomatium vaginatum Jennifer Wheeler 2012-5-9 649 Humboldt Lacks Creek, Beaver Ridge Road 865 Comment
  CAS-BOT-BC240475  Lonicera hispidula John McLaren 1920-9-1 s.n. Humboldt Unspecified Comment
  UCD67636  Lonicera hispidula D. Sanchez-Mata 1996-6-28 s.n. Humboldt Blue Lake-Willow Creek. Lord-Ellis Summit. 560 Comment
  HSC81931  Lonicera hispidula var. vacillans Thomas W. Nelson, Jane P. Nelson 1979-7-3 4962 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  RSA696526  Lonicera hispidula var. vacillans J. R. Bruff 1937-8-17 925 Humboldt Richardson Grove. Comment
  CAS-BOT-BC241488  Lonicera involucrata var. ledebourii Ashley C. Browne 1938-6-11 s.n. Humboldt Patrick's [Patricks] Point State Park Comment
  HSC23144  Lonicera involucrata var. ledebourii Thomas W. Nelson 1970-10-17 238 Humboldt Big Lagoon Comment
  HSC3926  Lonicera involucrata var. ledebourii W. R. Brigham 1962-5-19 8 Humboldt S of Big Lagoon. Comment
  HSC77902  Lonicera involucrata var. ledebourii L. P. Janeway 1984-5-16 797 Humboldt N Spit of Humboldt Bay, on the W side of Samoa Road ca. 1/4 mi. N of the boat ramp. 5 Comment
  OBI6309  Lonicera involucrata var. ledebourii Joseph P. Tracy 1943-3-21 17413 Humboldt North Coast ranges Comment
  SBBG69582  Lonicera involucrata var. ledebourii S. W. Hutchinson -Apr-1927 91 Humboldt near Eureka 8 Comment
  SDSU2917  Lonicera involucrata var. ledebourii Harvey 1938-8-13 2278 Humboldt North of Arcata. Comment
  CDA42186  Lonicera involucrata var. ledebourii Gordon Leppig 1998-5-11 758 Humboldt Northern California Peatlands; Big Lagoon County Park. Big Lagoon Bog. Comment
  CAS-BOT-BC200915  Lotus Doris Kildale Gillespie 1931-6-7 10589 Humboldt South Fork Mt. Blake Lookout 1726 Comment
  JEPS20790  Lotus aboriginus W. L. Jepson 1902-6 1944 Humboldt Berry Ranch Redwood Creek Comment
  UC1223407  Lotus denticulatus Joseph P. Tracy 1933-7-9 12655 Humboldt near Willow Creek (on Trinity Highway) 304 Comment
  POM18325  Lotus formosissimus W. C. Blasdale 1896-5-31 7471 Humboldt Eureka Comment
  UC1052471  Lotus formosissimus H. E. and S. T. Parks Jun 1952 24449 Humboldt Spruce Cove Trinidad 60 Comment
  UC1073328  Lotus formosissimus George B. Rossbach 1955-6-10 332 Humboldt Madison Grant Elk Refuge Prairie Creek Redwoods State Park Comment
  UC1223398  Lotus formosissimus J. P. Tracy 1935-6-8 13941 Humboldt just e Eureka city limits (on Santa Clara Tract); Eureka 0 Comment
  UC726015  Lotus formosissimus A. A. Heller 1937-6-8 15895 Humboldt 3 mi n Trinidad (at Bishop Pine Lodge) Comment
  SEINET6932529  Lotus humistratus Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt About 4 miles southeast of Kneeland. Comment
  UC1197291  Lotus humistratus Joseph P. Tracy 1911-7-4 3283 Humboldt near Willow Creek (at w side of Trinity River); Northern Coast Ranges, Trinity River 243 Comment
  SEINET3559878 Image available Lotus torreyi Joseph P. Tracy 1914-7-4 4527 Humboldt High prairie on Bald Mountian 1067 Comment
  HSC75509  Lupinus albicaulis J. O. Sawyer, R. J. Cole 1977-7-3 30016 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  JEPS85687  Lupinus albicaulis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8954 Humboldt near Blake lookout (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1737 Comment
  HSC40963  Lupinus arboreus Linda M. Barker 1976-5-13 1472 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  SBBG68994  Lupinus arboreus R. Hartwell 1938-8-5 Humboldt N of Eureka Comment
  RSA98774  Lupinus arboreus var. arboreus P. A. Munz 1954-7-25 19868 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  HSC32075  Lupinus bicolor Glenn McGourty 1974-4-27 35 Humboldt Along side of Mattole River Comment
  POM10719  Lupinus bicolor H. P. Chandler 1901-05 128 Humboldt Humboldt Bay. 30 Comment
  UC1223282  Lupinus formosus Joseph P. Tracy 1941-9-1 16997 Humboldt Blue Lake Comment
  HSC57313  Lupinus latifolius Griswold, Butler 1979-7-10 6326 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC76189  Lupinus latifolius Overton, Butler 1979-7-24 9779 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  JEPS65284  Lupinus latifolius Joseph P. Tracy 1923-6-25 6376 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  UC205479  Lupinus latifolius var. latifolius Joseph P. Tracy 1919-5-31 5174 Humboldt along Willow Creek ((Tributary of Trinity River) near its mouth); Northern Coast Ranges, Trinity River, along Willow Creek 152 Comment
  JEPS48707  Lupinus latifolius var. latifolius Hilda W. Grinnell 1932-7-19 27 Humboldt eastern slope of So. Fork Mt. South Fork Mt.; eastern slope of So. Fork Mt. 1615 Comment
  SBBG3657  Lupinus latifolius var. viridifolius H. and M. Dearing 1939-5-24 3416 Humboldt 5 mi S of Alton Comment
  UC1223259  Lupinus lepidus var. lobbii Joseph P. Tracy 1940-7-7 16672 Humboldt ridge back Clear Lake (Grouse Mountain); , ridge back of Clear Lake 1524 Comment
  UC584210  Lupinus littoralis David D. Keck and J. Clausen 1935-6-16 3383 Humboldt Mouth of Little River Comment
  SD42577  Lupinus polyphyllus Carl B. Wolf 1937-6-19 8912 Humboldt Van Duzen River, 0.3 mile above Bridgeville. 121 Comment
  POM92971  Lupinus polyphyllus subsp. polyphyllus L. R. Abrams 1922-6-25 8251 Humboldt Arcata Comment
  UC169007  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1912-7-21 3784 Humboldt Alton; Northern Coast Region 30 Comment
  UC198578  Lupinus rivularis Joseph P. Tracy 1917-5-26 4785 Humboldt at Eureka (on bluff at Bucksport); Northern Coast Ranges 0 Comment
  CHSC943  Lupinus variicolor M. Underhill 1952-7-13 Humboldt 0 Comment
  HSC38371  Lupinus variicolor Peter Sorensen 1976-5-29 Humboldt King Salmon Comment
  HSC56398  Luzula comosa Griswold, Butler 1979-7-11 6968 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC14165  Luzula comosa S. R. Johnson 1965-4-30 47 Humboldt 0.5 mi. N of Luffenholtz Beach Comment
  CHSC115461  Luzula macrantha Peter F. Zika 2011-7-3 25497 Humboldt Titlow Hill Road, 3.7 road miles SE of Route 299 at Berry Summit, 1 air km SSW of Horse Mountain, Outer North coast Ranges. 1310 Comment
  CHSC118269  Luzula macrantha Peter F. Zika 2011-7-3 25499 Humboldt Titlow Hill Road, 4.2 road miles SE of Route 299 at Berry Summit, 0.8 air km SSW of Horse Mountain. Outer North Coast Ranges (NCoRO). 1390 Comment
  HSC56452  Luzula parviflora Griswold, Butler 1979-7-12 7213 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC58033  Luzula parviflora G. L. Clifton 1979-7-31 11867 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  RSA54022  Luzula parviflora E. K. Balls, Lee W. Lenz 1956-6-12 21662 Humboldt 4.4 miles SW from Willow Creek along U. S. Highway 299 to Arcata. 366 Comment
  UC1133756  Luzula subsessilis H. L. Person 1932-5-11 19424 Humboldt Korbel Eureka Quad., Korbel Comment
  UC249774  Lycopodiella inundata Joseph P. Tracy with H. E. Parks 1924-8-3 6769 Humboldt sphagnum bog at sw corner Big Lagoon; Northern Coast Region 6 Comment
  HSC93256  Lycopodium clavatum D. K. Walker 1998-7-16 Humboldt Redwood National Park, Larry Damin Rd., 0.5 mi. from Lost Man Creek, on old logging road. Comment
  UC302313  Lycopodium clavatum unknown Humboldt Northern Coast Region Comment
  CHSC2104  Lysichiton americanus M. Anthony 1960-5-14 Humboldt N. coastal. Comment
  CHSC26464  Lysichiton americanus J. Detzer 1977-4-8 4 Humboldt S end of Patricks Point State Park, ca. .2 mi w of Hwy. 101 and 5 mi n of Trinidad. 60 Comment
  HSC30342  Lysichiton americanus Dale R. Gradek 1974-5-28 94 Humboldt 0.25 mi. E of Hwy. 101 on Jolly Giant Creek 61 Comment
  JEPS432  Lysichiton americanus W. L. Jepson 1936-8-17 17916 Humboldt 2 mi. s. Field's Landing (near Still's ranch) Comment
  JEPS90109  Lysichiton americanus H. S. Yates 1936-6-18 5729 Humboldt near mouth of Little River Little River 4 Comment
  JEPS42815  Lysichiton americanus Lincoln Constance 1934-6-18 894 Humboldt near South Fork Rail Road Station and Post Office (border of North Dyerville Flat, South Fork Eel River); Bull Creek Region, South Fork Eel River Comment
  HSC59797  Lythrum hyssopifolia Clark L. Miller 1979-5-19 1148 Humboldt Along Samoa Blvd. before railroad tracks, 4 mi. W of Arcata. Comment
  UC176862  Madia elegans Joseph P. Tracy 1911-7-6 3355 Humboldt between Three Creeks and mouth of Willow Creek 762 Comment
  POM161463  Madia elegans subsp. elegans Joseph P. Tracy 2683 Humboldt Hillside near bridge across Little Va Duzen, northwest slope of Buck Mountain 762 Comment
  SD88396  Madia elegans subsp. vernalis Darley F. Howe 1972-5-6 Humboldt 1.5 miles north of Phillipsville Comment
  HSC38099  Madia exigua Thomas W. Nelson, James Nelson 1976-5-30 2622 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CAS-BOT-BC344356  Madia exigua Carl B. Wolf 1937-6-19 8910 Humboldt Van Duzen River, 3/10 mi. above Bridgeville 121 Comment
  CAS-BOT-BC343018  Madia gracilis Joseph P. Tracy 1934-7-18 13432 Humboldt North Coast Ranges. Grouse Mountain 1524 Comment
  HSC74504  Madia gracilis Gail Newton 1980-8-10 2053 Humboldt Near Blake Mtn. 1707 Comment
  CAS-BOT-BC343025  Madia gracilis Doris K. Kildale 1927-6-25 3564 Humboldt Fearren's Ranch between Thorn & Shelter Cove Comment
  HSC79470  Madia gracilis Kenneth Clark 1980-5-10 634 Humboldt Along access trail to Dead Man's Gulch 122 Comment
  HSC98983  Madia gracilis Cara Witte 2007-7-3 403 Humboldt National Forest 1 on Kinsey Ridge. 1 1/2 miles north of intersection with 4N09. 1396 Comment
  JEPS22206  Madia gracilis Joseph P. Tracy 1931-6-28 9588 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Buck Mountain 762 Comment
  SBBG34731  Madia gracilis T. L. Secrest 1948-7-1 Humboldt near Hwy 101, southern Humboldt county Comment
  RSA254781  Madia madioides Thomas W. Nelson, James Nelson 1973-5-28 946 Humboldt McKeown Ranch north of Dinsmore. Comment
  UCR10833  Madia madioides Sue De Groot 1962-6-14 112 Humboldt North Coast Range, hillside west of Richardson Grove, Eel River drainage to Pacific 122 Comment
  POM284946  Madia madioides Lyman Benson 1929-7-16 1868 Humboldt Weott Ranger Station. Comment
  HSC91907  Madia sativa E. Mackey 1978-7-19 Humboldt Patrick's Point State Park; middle of the road near cliffs Comment
  RSA46904  Mahonia nervosa Doris K. Kildale 1926-12-26 2882 Humboldt Kneeland, near water trough. Comment
  CHSC10104  Maianthemum dilatatum J. W. Johnson 1962-4-21 1287 Humboldt Arcata. Along Lanphere Lane, Samoa Peninsula. Comment
  CHSC2299  Maianthemum dilatatum M. Anthony 1960-5-14 Humboldt Arcata. Comment
  HSC103978  Maianthemum dilatatum Kyle Brown 2015-4-25 38 Humboldt Trinidad, along trail at Trinidad State Beach Park 15 Comment
  HSC15594  Maianthemum dilatatum Harvey Doerksen 1962-5-22 27 Humboldt Azalea Reserve State Park near Mad River Comment
  UCR198042  Maianthemum dilatatum Daniel Sanchez-Mata, S. Rivas-Martinez, M. Costa, M. Ladero 1998-6-10 s.n. Humboldt Trinidad-Klamath Glenn. Prairie Creek State Park, Prairie Creek Trail 70 Comment
  CAS-BOT-BC508517  Maianthemum dilatatum A. A. Heller 1937-6-8 15899 Humboldt Bishop Pine Lodge, 3 miles north of Trinidad Comment
  SEINET3992237  Maianthemum dilatatum C. O. Baker 1962-5-7 Humboldt 2 miles south of Trinidad along Hwy 101. Comment
  HSC15656  Maianthemum racemosum subsp. amplexicaule Harvey Doerksen 1962-5-4 3 Humboldt W of Korbel, S side of Mad River Comment
  HSC54225  Maianthemum racemosum subsp. amplexicaule Griswold, Butler 1979-7-12 7290 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  HSC57896  Maianthemum racemosum subsp. amplexicaule Overton, Butler 1979-7-31 11476 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  CAS-BOT-BC511458  Maianthemum racemosum subsp. amplexicaule Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway Comment
  CHSC40212  Maianthemum stellatum L. P. Janeway 1984-5-13 776 Humboldt Along the Kneeland/Bridgeville Road ca 15 mi east of the Kneeland post office just past Lone Star Junction and near Lone Star Creek. 609 Comment
  HSC103295  Maianthemum stellatum Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-27 3010 Humboldt Six Rivers National Forest; ~0.3 mi. south-southeast of Cold Spring Camp; ~ 3.3 aerial mi. south-southeast of Horse Mtn. Radio Tower. 1401 Comment
  UCD134381  Malacothrix D. C. Hagar 1956-8-17 89 Humboldt Three Creek's Burn, ca. 6 miles west of Willow Creek. 609 Comment
  HSC44103  Malacothrix floccifera Thomas W. Nelson, Jane P. Nelson 1977-8-6 3686 Humboldt Along Rd. 2S08 near Alder Spring 1524 Comment
  HSC100442  Malacothrix obtusa Carl C. Marshall Jun 1887 458 Humboldt Near Harris. Comment
  HSC26848  Malva nicaeensis Thomas W. Nelson 1971-1-8 324 Humboldt N of the county fairgrounds at Ferndale Comment
  SEINET10838741  Malva nicaeensis Mary Susan Taylor 1982-10-24 Taylor 5182 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  UCD116540  Malva verticillata Paul Holzberger 1981-8-24 s.n. Humboldt 1251 Williams Street, Eureka. Comment
  HSC65125  Marah oregana J. P. Smith 1971-10-6 4968 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC7029  Marah oregana D. A. Shally 1965-5-15 46 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  UC203561  Marah oregana Joseph P. Tracy 1918-7-14 5077 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC160957  Medicago lupulina Harley P. Chandler June, 1901 1423 Humboldt Klamath River Northern Coast Ranges 304 Comment
  UC1197426  Medicago polymorpha Joseph P. Tracy 1936-6-8 14868 Humboldt Trinidad Bluffs Trinidad 3 Comment
  UC552693  Melica aristata Joseph P. Tracy 1935-7-25 14236 Humboldt McKay Prairie; Trinity Summit 1584 Comment
  UC1103760  Melica californica Joseph P. Tracy 1950-6-15 18780 Humboldt 5 mi n Harris; Mail Ridge 944 Comment
  UC188886  Melica harfordii J. Burtt Davy 1899-6-19 5657 Humboldt Hoopa Mt. summit; North Coast Ranges Comment
  UCD87536  Melica harfordii A. H. Murphy 1947-6-17 s.n. Humboldt 1 mile south of Blocksburg. Comment
  CAS-BOT-BC281005  Melica spectabilis Joseph P. Tracy 1932-7-12 10445 Humboldt Klamath Mts,Trinity Summit. At Corral Prairie 1524 Comment
  UC184151  Melica subulata Joseph P. Tracy 1912-7-27 3883 Humboldt Kneeland Prairie; North Coast Ranges 762 Comment
  HSC79465  Melica torreyana Kenneth Clark 1980-4-18 609 Humboldt Along access trail to Deadman's Gulch. 46 Comment
  HSC12565  Mentha pulegium D. La Conte 1970-7-7 1 Humboldt Comment
  UC1225836  Mentha pulegium Joseph P. Tracy 1946-8-25 17642 Humboldt along Eel River Grizzly Bluff; Eel River 18 Comment
  SEINET12277649  Mentha spicata J. P. Tracy 1950-1 19370 Humboldt Klamath River, near Slate Creek, Below Orleans 8 miles 122 Comment
  JEPS42754  Mentzelia dispersa Joseph P. Tracy 1937-7-24 15521 Humboldt Trinity Summit, Devil's Hole 1676 Comment
  RSA53803  Mentzelia laevicaulis H. M. Pollard 1945-9-4 s.n. Humboldt Near Camp Creek, Klamath River Canyon. Comment
  JEPS80898  Menziesia ferruginea B. A. Bohm, K. W. Nichols 1981-5-11 1571 A Humboldt Prairie Creek area, Mile 125.00, US Hwy 101 Prairie Creek area; , Mile 125.00, US Hwy 101 Comment
  UC154037  Menziesia ferruginea Joseph P. Tracy 1908-6-10 2676 Humboldt Region about Humboldt Bay, Freshwater Creek Freshwater Creek; Northern Coast Region, Region about Humboldt Bay, Freshwater 0 Comment
  UCR37537  Menziesia ferruginea L. P. Janeway 1983-5-3 258 Humboldt Community Forest Main Access Rd., east of HSU 168 Comment
  JEPS13225  Microseris laciniata subsp. laciniata Lincoln Constance 1934-5-24 624 Humboldt s slope lower Look Prairie; South Fork Eel River, Bull Creek region, s slope of Lower Lo 121 Comment
  JEPS13230  Microseris laciniata subsp. laciniata Joseph P. Tracy 1934-7-6 13661 Humboldt at Sibley Ranch; Iaqua, Sibley Ranch 609 Comment
  UC1199451  Microseris laciniata subsp. laciniata Joseph P. Tracy 1933-7-26 12925 Humboldt s slope Grouse Mountain (towards low creek); North Coast Ranges, s slope Grouse Mountain 1219 Comment
  UC582737  Microseris laciniata subsp. laciniata Joseph P. Tracy 1936-6-17 14942 Humboldt Bridgeville 198 Comment
  CHSC62187  Microseris nutans K. L. Chambers 1990-6-23 5515 Humboldt Horse Mtn., off Titlow Hill Rd., s. of Hwy. 299, e. of Arcata. On slope below the parking lot for the winter spots area. 1493 Comment
  HSC58236  Microsteris gracilis Walter Overton 1979-8-1 12394 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  JEPS17993  Mimulus aurantiacus var. aurantiacus George B. Rossbach 1955-6-10 504 Humboldt 2 mi n Stephens Redwood Grove (Route 101); South Fork of Eel River Comment
  UC1115824  Mimulus breweri Joseph P. Tracy 1939-7-9 16337 Humboldt Snow Camp 1402 Comment
  UC582604  Mimulus breweri Joseph P. Tracy 1932-7-10 10375 Humboldt Trinity Summit 1584 Comment
  HSC23725  Mimulus cardinalis Tim Baroni 1971-8-1 151 Humboldt 8 mi. E of Petrolia on the Mattole River Comment
  HSC20711  Mimulus dentatus P. Markle 1962-5-16 34 Humboldt Along road to City of Arcata reservoir Comment
  UC162587  Mimulus floribundus Joseph P. Tracy 1911-7-6 3364 Humboldt along road between mouth of Willow Creek and Three Creeks (Koby's ranch); Northern Coast Ranges 762 Comment
  UC169014  Mimulus floribundus Harley P. Chandler June, 1901 1481 Humboldt between Orleans and Somes Bar; North Coast Ranges, Klamath River 304 Comment
  HSC103078  Mimulus guttatus Sydney Carothers 2014-6-12 11 Humboldt Six Rivers National Forest, Lassics Botanical Area, Red Lassic. Near upper pond and rustic camp site. 1706 Comment
  HSC90635  Mimulus guttatus Gail Newton 1983-6-5 3555 Humboldt Elk River Wildlife Area, Eureka Comment
  JEPS10484  Mimulus guttatus Joseph P. Tracy 1933-5-20 12252 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  UC41881  Mimulus inodorus Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  HSC85939  Mimulus kelloggii Susan Carter, Eric May, Sarah McNaull 1987-3-7 7 Humboldt 8 mi. SSE of Salyer on Co. Rd. 447, F.S. Rd. 5N03, trail 6E23; E of South Fork of Trinity River 457 Comment
  HSC100672  Mimulus microphyllus Carl C. Marshall Apr 1887 387 Humboldt Supply Creek, near Hoopa. Comment
  HSC55609  Mimulus moschatus Overton, Butler 1979-7-23 9492 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC76046  Mimulus moschatus Overton, Butler 1979-8-2 12559 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  JEPS10598  Mimulus pilosus W. L. Jepson 1936-8-17 17937 Humboldt near Arcata; Mad River Comment
  HSC20787  Mimulus pilosus D. E. Anderson 1963-10-6 2879 Humboldt Mad River bed, across from Essex Junction. Comment
  UC582441  Mimulus pilosus Joseph P. Tracy 1923-9-16 6552 Humboldt at mouth of South Fork Northern Coast Ranges, Trinity River Valley 152 Comment
  UC582493  Mimulus pulsiferae Joseph P. Tracy 1926-6-20 7616 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
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Sep 10 2013
  HSC44532  Mimulus tilingii Brad Klipfel 1973-7-1 141 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  SEINET6904196  Minuartia californica Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UC249668  Minuartia douglasii Joseph P. Tracy 1921-5-30 5487 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC71799  Minuartia nuttallii subsp. gregaria M. A. Baker 1980-6-8 1924 Humboldt Near Buck Flat. 1554 Comment
  HSC25572  Mitella diversifolia J. O. Sawyer 1971-6-15 2383 Humboldt S of Lipps Camp along Horse Linto Creek 1372 Comment
  UC1223238  Moehringia macrophylla Joseph P. Tracy 1951-6-26 19558 Humboldt halfway between Snow Camp and Twin Lakes ((at Charley Preston's old gate near the road)); between Snow Camp and Twin Lakes Comment
  UC1103534  Moehringia macrophylla Joseph P. Tracy 1930-7-18 9074 Humboldt near McKay Camp South Fork Mountain 1676 Comment
  UC229833  Mollugo verticillata Joseph P. Tracy 1921-10-16 5972 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC221969  Monardella odoratissima subsp. glauca Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Mt. 1828 Comment
  JEPS109950  Monardella odoratissima subsp. odoratissima Dean W. Taylor 2007-7-12 20164 Humboldt Pig Toe, along the Fruit Ranch road. 762 Comment
  CAS-BOT-BC215566  Monardella odoratissima subsp. pallida Joseph P. Tracy 1926-6-20 7657 Humboldt Horse Mountain 1310 Comment
  UC1239679  Monardella purpurea Joseph P. Tracy 1935-7-14 14075 1/2 Humboldt Back of White Rock Springs; North Coast Ranges, Grouse Mountain 1554 Comment
  BLMAR645  Monardella sheltonii Jennifer Wheeler 2011-8-31 645 Humboldt Lacks creek, Pine Ridge road, spur 3 at Stormy Saddle 1097 Comment
  UCD125243  Monardella sheltonii Joseph P. Tracy 1947-7-5 17782 Humboldt Trinity Summit; ridge top one mile west of Mud Springs. 1158 Comment
  CAS-BOT-BC220516  Monardella villosa Marcus E. Jones 1931-7-16 28821 Humboldt Junction, East of Arcata Comment
  JEPS62398  Monardella villosa subsp. globosa Lincoln Constance 1934-6-3 798 Humboldt along n side of Redwood Hwy. at Dyerville South Fork Eel River, Bull Creek Region Comment
  RSA0022786  Monardella villosa subsp. subserrata F. W. Peirson 1926-7-13 7050 Humboldt Near Blue Lake, Mad River Comment
  HSC97469  Montia C. Witte 2007-5-21 53 Humboldt Board Camp Mountain. Near intersection of Forest Service Road 4N38 with National Forest 1. 1394 Comment
  RSA29091  Montia diffusa Lincoln Constance, A. A. Beetle 1940-5-17 2615 Humboldt In Shade of Cornus and Sambucus, cutover Pseudotsuga forest. Above Van Duzen River, 1 mile below Dinsmore s 762 Comment
  CAS-BOT-BC445151  Montia parvifolia I. L. Wiggins 1932-7-7 5879 Humboldt Near Samoa Comment
  CAS-BOT-BC445161  Montia parvifolia Henry M. Pollard 1948-7-24 s.n. Humboldt Along road near Orleans Comment
  HSC17670  Montia parvifolia D. E. Anderson 1965-5-22 3726 Humboldt 9.4 mi. S of Bridgeville, along road to Blocksburg Comment
  HSC16101  Morella californica J. W. Johnson 1961-8-17 1045 Humboldt Edge of pond near barn, Lanphere Farm, Samoa Comment
  UCD138687  Muscari armeniacum Joseph M. DiTomaso 1976-3-28 344 Humboldt Samoa Cookhouse 3 miles northwest of Eureka. Comment
  HSC27886  Myosotis sylvatica Clifton Raymond Chesbrough 1973-6-19 74 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  HSC47657  Myosotis sylvatica Sheila Logan 1978-4-10 180 Humboldt Arcata Community Forest, near PSW Experimental Lab Comment
  CAS-BOT-BC101664  Myrica californica Volney Rattan s.n. Humboldt unspecified Comment
  CAS-BOT-BC101671  Myrica californica Joseph P. Tracy 1931-4-12 9332 Humboldt Dows Prairie 60 Comment
  SEINET6671220 Image available Myrica californica Joseph P. Tracy 1931-1 9332 Humboldt Dows Prairie Comment
  CAS-BOT-BC515984  Narthecium californicum Volney Rattan 1867-6-1 s.n. Humboldt Red Mountain Comment
  UCD87899  Nassella lepida A. H. Murphy 1951-5-18 43 Humboldt along road, 2.5 mi. northwest of Petrolia. Comment
  CAS-BOT-BC60347  Nasturtium officinale Doris K. Kildale 1926-8-12 2484 Humboldt Moonstone Beach near Trinidad. Comment
  UCSB30594  Nasturtium officinale Edwards, David 1974-7-30 Humboldt West side of U.S. 101, ca. 30 yds. S. of 7th St. overpass, Arcata 15 Comment
  UC133638  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1906-7-4 2523 Humboldt near Hydesville (near mouth of Yager Creek); Northern Coast Region, Yager Creek 60 Comment
  HSC81574  Navarretia mellita Thomas W. Nelson, Jane P. Nelson 1980-7-15 6068 Humboldt Old logging rds. SE of Lundbar Hills 30 Comment
  JEPS70445  Navarretia pubescens Joseph P. Tracy 1916-6-20 4733 Humboldt Alder Point Northern Caost Ranges 152 Comment
  SEINET200382  Navarretia squarrosa J. P. Tracy 1904-7-31 2135 Humboldt Immediate vicinity of Eureka. 0 Comment
  UC1198527  Navarretia squarrosa Joseph P. Tracy 1927-8-7 8328 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1198529  Navarretia squarrosa Joseph P. Tracy 1908-6 2853 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  UC1222715  Navarretia squarrosa Joseph P. Tracy 1950-7-6 19027 Humboldt 3 mi s Burr Valley (at Sprosten's Place) 1066 Comment
  JEPS70490  Navarretia tagetina Joseph P. Tracy 1916-9-6 4758 Humboldt headwaters of Canoe Creek Northern Coast Ranges, Grasshopper Ridge, Canoe Creek 609 Comment
  JEPS70491  Navarretia tagetina Joseph P. Tracy 1916-6-19 4709 Humboldt Forks of Dobbyn Creek Northern Coast Ranges 182 Comment
  HSC45622  Nemophila menziesii Diane L. Reed 1978-4-22 28 Humboldt Tish Tang Campground, 5 miles north of Willow Creek on State Hwy. 96. Comment
  HSC71028  Nemophila menziesii var. atomaria Thomas W. Nelson 1977-4-20 3320 Humboldt Along FS 1N15 between Hwy. 36 and summit 915 Comment
  UC1239754  Nemophila menziesii var. atomaria Joseph P. Tracy 1927-4-23 7910 Humboldt Trinidad Trinidad (on coast bluffs) 3 Comment
  UC1239739  Nemophila parviflora Joseph P. Tracy 1949-6-6 18310 Humboldt ne Hawkins Bar (Happy Camp Mountain); Trinity Summit Range, , ne Hawkins Bar 1280 Comment
  UC144103  Nemophila parviflora Joseph P. Tracy 1909-6-20 3001 Humboldt 3 mi above Wrangletown (Freshwater Creek, Region about Humboldt Bay); Northern Coast Region, Humboldt Bay region, Freshwater Creek 0 Comment
  UC26148  Nicotiana quadrivalvis var. quadrivalvis J. Burtt Davy 1899-6-20 5709 Humboldt Hoopa Valley; North Coast Ranges Comment
  HSC6971  Noccaea fendleri subsp. glauca Lincoln Constance, R. C. Rollins 1942-5-11 2877 Humboldt Hoopa Valley, 5 mi. S of Hoopa 122 Comment
  UCD110194  Notholithocarpus densiflorus S. P. Lynch 1975-6-9 1371 Humboldt ca. 20.4 mi. E of Arcata on Hwy. 299, heading towards Willow Creek. Comment
  HSC99078  Notholithocarpus densiflorus var. echinoides Cara Witte 2008-7-25 940 Humboldt Forest Service Road 5N10. Approximately 1.5 miles north of intersection with Forest Service Road 5N10C. 1319 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
  HSC49510  Nuphar polysepala R. York 1979-4-16 263 Humboldt Along Hwy. 101 across from Clam Beach between Westhaven and McKinleyville 0 Comment
  CAS-BOT-BC142251  Oemleria cerasiformis C. Hart Merriam 1918-8-11 s.n. Humboldt Blue Lake Comment
  CAS-BOT-BC142292  Oemleria cerasiformis Doris K. Kildale; J. W. Gillespie 1929-6-25 8391 Humboldt Pine's Pasture, Eureka Comment
  CAS-BOT-BC142296  Oemleria cerasiformis Doris K. Kildale 1926-3-2 1862 Humboldt Willow Creek Flat, Trinity River Valley 152 Comment
  RSA293126  Oemleria cerasiformis Thomas W. Nelson 1976-3-22 2276 Humboldt moist hillside beside Eureka Muni. Golf Course. Comment
  UC1198789  Oemleria cerasiformis Joseph P. Tracy 1933-3-26 10946 Humboldt hills at n end Big Lagoon 60 Comment
  HSC39450  Oenanthe sarmentosa Linda M. Barker 1976-7-5 1632 Humboldt 3 mi. W of Arcata. Comment
  UC1197139  Oenanthe sarmentosa Joseph P. Tracy 1943-7-18 17438 Humboldt Big Lagoon 6 Comment
  CDA38484  Oenanthe sarmentosa Tario 1932-9-21 s.n. Humboldt Arcata. 0 Comment
  UCD127762  Oenanthe sarmentosa C. S. Myszka 1921-4-1 s.n. Humboldt County unknown: location unknown. Comment
  UC205159  Oreostemma alpigenum var. andersonii Joseph P. Tracy 1919-9-22 5278 Humboldt Trinity Summit Northern Coast Ranges 1889 Comment
  JEPS26030  Orobanche californica subsp. californica Joseph P. Tracy 1939-8-6 16398 Humboldt Big Lagoon. Comment
  CAS-BOT-BC499670  Orobanche californica subsp. californica Edward Lee 1934-8-17 1152 Humboldt East shore of Big Lagoon, 35 mi N of Eureka 3 Comment
  HSC62992  Orobanche uniflora David Wheeler 1979-5-24 153 Humboldt Gray's Falls above the Trinity River. Comment
  UC1197442  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1941-4-26 16865 Humboldt Kneeland Prairie. Comment
  POM43760  Orthocarpus faucibarbatus var. albidus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC56063  Orthocarpus imbricatus G. L. Clifton, Terry Griswold 1979-7-31 11707 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC99532  Orthocarpus imbricatus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 196 Humboldt Near North Trinity Mtn and Water Dog Lakes, Six Rivers National Forest. 1826 Comment
  POM225846  Orthocarpus lithospermoides M. S. Jussel 1931-5-2 s.n. Humboldt 20 mi. N. of Garberville. Comment
  HSC99397  Osmorhiza berteroi K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 46 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1222754  Osmorhiza berteroi Joseph P. Tracy 1950-6-25 18889 Humboldt Burr Valley Buck Mountain (nw slope of mt.) 1066 Comment
  HSC32844  Osmorhiza purpurea Thomas W. Nelson, Jane P. Nelson 1973-5-28 945 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC12761  Oxalis articulata subsp. rubra M. J. Athey 1970-11-8 12 Humboldt Along Arcata blvd., in Arcata. Comment
  HSC16722  Oxalis articulata subsp. rubra N. D. Dennis 1965-4-4 6 Humboldt Corner of F and 9th street, in Eureka Comment
  HSC33742  Oxalis articulata subsp. rubra John Palmer 1975-5-24 374 Humboldt Samoa Dunes, off Samoa Blvd. across from the boat landing Comment
  HSC16697  Oxalis corniculata T. W. Beck 1963-4-27 44 Humboldt Camp Bauer, Korbel Comment
  JEPS43130  Oxalis corniculata Joseph P. Tracy 1918-11-17 5119 Humboldt Elk River Corners Northern Coast Ranges, Eureka 0 Comment
  HSC16696  Oxalis corniculata J. E. Lankila 1962-4-14 5 Humboldt W bank of Eel River across from Shively ca. 700 feet N of Bear Creek. Comment
  CHSC24885  Oxalis oregana W. A. Vaccaro 1976-4-4 1 Humboldt Ca. 300 yds. NE of int. of Cedar St. and W. St., Cutten. 45 Comment
  UC502948  Oxalis suksdorfii Joseph P. Tracy 1930-6-22 8796 Humboldt Berry's Northern Coast Ranges (Redwood Creek) 457 Comment
  UC166076 Image available Packera bolanderi var. bolanderi Joseph P. Tracy 1911-6-4 3231 Humboldt 5 mi from The Coast (along Little River); Northern Coast Region, Little River 121 Comment
  UCD134738  Packera bolanderi var. bolanderi K. Esau 1934-5-8 s.n. Humboldt Redwood Highway, near Scotia. Comment
  POM126096  Panicum acuminatum var. acuminatum Joseph P. Tracy 1906-7-1 2517 Humboldt At Eureka 0 Comment
  UC1103770  Panicum miliaceum subsp. miliaceum J. C. Tario Jr. 1931-8-20 Humboldt Eureka 30 Comment
  RSA44527  Panicum oligosanthes var. scribnerianum Henry M. Pollard 1947-8-30 s.n. Humboldt Near Wilson Creek, on Klamath River, (near Orleans) Comment
  RSA624797  Parapholis strigosa Gordon Leppig 1998-6-6 801 Humboldt Arcata, Arcata Marsh and Wildlife Sanctuary, Butchers Slough about 50m w of Interpretive Center 1 Comment
  POM230334  Parentucellia viscosa J. T. Howell 1937-7-31 13719 Humboldt 3 miles west of Korbel, Comment
  HSC37801  Paspalum dilatatum J. P. Smith 1976-8-22 8962 Humboldt Hwy. 101 just S of exit to Murray field. Comment
  UCD88947  Paspalum distichum Joseph P. Tracy 1939-10-6 16505 Humboldt Eureka. West of Sunset Cemetary. Comment
  JEPS9618  Paxistima myrsinites Joseph P. Tracy 1933-4-30 6042 Humboldt ridge n. of Willow Creek between Willow and Campbell Creeks (Brannan Mt.); Brannan Mt. 914 Comment
  UC582556  Pedicularis densiflora Joseph P. Tracy 1937-4-3 15251 Humboldt Willow Creek; Trinity River Valley 152 Comment
  CHSC3181  Pedicularis groenlandica Robert D. Briggs 1966-5-8 R- 187 Humboldt 1/4 mile south of Summit- 18 miles west of Willow Creek, on State 299. Comment
  JEPS3357  Pedicularis racemosa Joseph P. Tracy 1930-7-16 8917 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC50938  Pedicularis semibarbata G. L. Clifton, Walter Overton 1979-6-3 3760 Humboldt Near Pine Mtn., close to the town of Forest Glen 1495 Comment
  CAS-BOT-BC69342  Pellaea brachyptera L. B. Kildale 1930-8-3 10346 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  RSA54127  Pellaea brachyptera Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mountain 1524 Comment
  UC577404  Penstemon anguineus Joseph P. Tracy Jul 16 1930-Jul 19 1930 8918 Humboldt near McKay Camp; South Fork Mountain (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC577417  Penstemon anguineus Joseph P. Tracy 1932-7-12 10454 Humboldt near Corral Prairie (Fir woods); Trinity Summit, Corral Prairie 1584 Comment
  BLMAR213  Penstemon anguineus Jennifer Anthony-Wheeler 1996-7-9 213 Humboldt Pilots ridge., open gen. Loggged areas of +/- conf. Forest 1402 Comment
  UC354474  Penstemon azureus var. angustissimus P. E. Goddard 1906-6 666 Humboldt Lasseck Pk. Comment
  HSC103085  Penstemon purpusii Sydney Carothers 2014-6-22 6 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  NY641286  Penstemon rattanii F. W. Pennell 1940-7-8 26105 Humboldt Kneeland 670.6 Comment
  RSA21653  Penstemon rattanii subsp. rattanii Carl B. Wolf 1937-6-14 8808 Humboldt North Coast Range, junction of Eureka - Kneeland Road and Maple Creek Road. 683 Comment
  UC1222945  Pentachaeta alsinoides Joseph P. Tracy 1946-5-16 17346 Humboldt bench on w side of river 1 mi s Garberville; Eel River Comment
  UC709387  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1941-8-24 17038 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  SD112992  Perideridia howellii Darley F. Howe 1961-8-2 3125 Humboldt 24 miles east of Orick on Bald Mt. road. 915 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
  CAS-BOT-BC419192  Persicaria maculosa L. R. Abrams 1918-6-16 7193 Humboldt Willow Creek Comment
  CDA8459  Petasites frigidus var. palmatus E. C. Whitney 1964-4-1 Humboldt Kneeland. 0 Comment
  HSC91906  Petasites frigidus var. palmatus E. Mackey 1986-7-10 Humboldt Patrick's Point State Park; near restroom on the road to Wedding Rock Comment
  UCR179280  Petasites frigidus var. palmatus R. G. Swinney 1968-3-28 236 Humboldt East of Humboldt State College, Arcata 152 Comment
  HSC63487  Petrorhagia dubia M. A. Baker 1977-6-6 381 Humboldt Hoopa Indian Reservation Comment
  SDSU6621  Phacelia D. F. Howe 1962-5-21 3300 Humboldt 24.5 miles north of garberville on #101. 61 Comment
  HSC64163  Phacelia bolanderi J. O. Sawyer, K. A. Sawyer 1979-6-24 3407 Humboldt Slopes alongside Aikens Creek. 366 Comment
  UC24323  Phacelia ciliata var. ciliata J. P. Tracy 1899-4-4 Humboldt Eureka Comment
  UC562581  Phacelia malvifolia Joseph P. Tracy 1927-6-8 8118 Humboldt Trinidad 3 Comment
  HSC57205  Phacelia mutabilis Griswold, Butler 1979-7-12 7160 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC74222  Phacelia mutabilis M. A. Baker 1980-7-23 3189 Humboldt Near Orleans Mtn. 1859 Comment
  BLMAR159  Phacelia nemoralis subsp. nemoralis Donald Hazlett 1994-6-7 159 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC203960  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1918-7-1 4983 Humboldt 3 mi s point of the cape; Northern Coast Ranges, Cape Mendocino 3 Comment
  HSC10551  Phalaris arundinacea W. F. Cartwright 1965-5-20 75 Humboldt 5 mi. S of Arcata on Old Arcata Road Comment
  CAS-BOT-BC76566  Philadelphus lewisii Doris K. Kildale 1927-7-2 3661 Humboldt Redmond Creek at Berry's 289 Comment
  CAS-BOT-BC76571  Philadelphus lewisii Doris K. Kildale 1926-8-15 2508 Humboldt Trinity River Valley - Willow Creek Flat 152 Comment
  UC1127362  Philadelphus lewisii R. Stahelin 1933-7-18 Humboldt Korbel near Riverside Plant. Korbel, 7.5 Q. Comment
  RSA0057780  Philadelphus lewisii Jane Turner, Francis M. Ball 1962-7-10 1145 Humboldt East Fork Willow Creek Forest Camp, Hwy 299 ca. 5 mi. W of Willow Creek in Six Rivers National Forest. 457 Comment
  HSC58414  Phleum alpinum Griswold, Butler 1979-7-12 7215 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC188863  Phleum alpinum Joseph Burtt Davy 1899-7-30 6198 Humboldt Russ Ranch Comment
  UC526668  Phleum alpinum Joseph P. Tracy 1926-7-5 7733 Humboldt Valley of South Yager Creek 762 Comment
  RSA53856  Phleum pratense Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. Trail 1524 Comment
  HSC24107  Phlox adsurgens J. O. Sawyer 1970-6-27 2305 Humboldt Site 318. 1494 Comment
  HSC71667  Phlox adsurgens Gail Newton 1980-6-24 554 Humboldt Near Ladder Rock 1500 Comment
  HSC38394  Phlox adsurgens J. D. Ackerman 1975-6-18 473 Humboldt Big Hill Rd. E of Hoopa and 10.9 mi. E of Hwy. 96 Comment
  UC1326260  Phlox adsurgens Milo S. Baker 1947-8-10 11944 Humboldt 15 mi ne Hoopa (near end of forest road) 1371 Comment
  UC1541555  Phlox adsurgens W. K. Parks Jul 1933 Humboldt South Fork Comment
  UC52358  Phlox adsurgens Joseph Burtt Davy and Walter C. Blasdale 1899-5 5708 Humboldt above Three Creeks Comment
  UC908475  Phlox gracilis Joseph P. Tracy 1930-6-21 8790 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  RSA273312  Phoradendron libocedri Thomas W. Nelson, Jane P. Nelson 1976-6-16 2739 Humboldt Just W of Alder Springs. 1524 Comment
  HSC92014  Phyllospadix scouleri G. Smith 1967-7-21 1980 Humboldt Patrick's Point State Park 0 Comment
  HSC45890  Picea sitchensis J. P. Smith 1971-10-6 4969 Humboldt End of Murray Rd. in McKinleyville, Bulk Collection 155 Comment
  SD51259  Picea sitchensis Darley F. Howe 1961-8-1 Humboldt 3 miles north of Arcata on Highway #101 Comment
  HSC41332  Pinus attenuata Brad Klipfel 1974-9-17 571 Humboldt Horse Mtn. Comment
  HSC70580  Pinus attenuata Gail Newton 1980-7-24 1775 Humboldt Near Somes Mtn. 1615 Comment
  UCR32094  Pinus jeffreyi David J. Keil 1983-7-2 17315 Humboldt c. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  HSC98787  Pinus monticola Cara Witte 2008-6-4 679 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1307 Comment
  CAS-BOT-BC79027  Pinus ponderosa Doris K. Kildale 1928-7-1 5314 Humboldt Klamath River at Orleans Comment
  UC502912  Pinus ponderosa Joseph P. Tracy 1929-4-28 8541 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC13529  Piperia unalascensis Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  HSC99639  Pityopus californicus T. Jimerson, J. Pageau 1979-7-31 698 Humboldt Near Whiting Ridge. Close to the town of Hyampom, CA. 1204 Comment
  POM126363  Plagiobothrys reticulatus Joseph P. Tracy 1912-6-9 s.n. Humboldt Alton. 30 Comment
  UC526820  Plagiobothrys reticulatus Joseph P. Tracy 1933-5-20 12244 Humboldt Mattole Valley near Petrolia; Northern Coast Ranges, Mattole Valley 30 Comment
  JEPS60976  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1914-5-30 4486 Humboldt Hydesville 60 Comment
  HSC89480  Plantago lanceolata P. A. Daly 1986-3-12 75 Humboldt Trinidad Head 61 Comment
  UC1196131  Plantago maritima var. californica Joseph P. Tracy 1927-6-8 8108 Humboldt Trinidad 30 Comment
  UC585993  Plantago maritima var. californica Joseph P. Tracy 1927-6-26 8219 Humboldt Stone Lagoon 6 Comment
  RSA43877  Plantago purshii var. oblonga H. M. Pollard 1948-8-3 s.n. Humboldt New Orleans. Comment
  HSC16832  Plantago subnuda Norman H. Moe 1962-5-17 Humboldt Lanphere's Place, next to Mad River Slough Comment
  UC154020  Plantago subnuda J. P. Tracy 1903-8-9 1937 Humboldt immediate vicinity Eureka 0 Comment
  HSC99138  Platanthera dilatata var. leucostachys Cara Witte 2008-8-6 1002 Humboldt Board Camp Mountain; 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 Comment
  HSC101999  Platanthera leucostachys M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 898 Humboldt Patterson Meadows 1555 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
  RSA20791  Platanthera leucostachys Carl B. Wolf 1937-8-13 9256 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  UC666987  Platanthera sparsiflora Joseph P. Tracy 1932-7-17 10673 Humboldt ridges e Corral Prairie; Trinity Summit 1828 Comment
  UC1196416  Platanthera sparsiflora Joseph P. Tracy 1926-6-27 7671 Humboldt House Mountain Northern Coast Ranges 1463 Comment
  UC1196297  Platystemon californicus H. E. Parks and Joseph P. Tracy 1930-5-25 8718 Humboldt Larrabee Valley; Northern Coast Ranges, Larrabee Valley 670 Comment
  HSC95538  Platystemon californicus Andrea Pickart 2002-3-14 8 Humboldt Samoa Dunes, BLM Endangered Plant Protection Area 0 Comment
  HSC21694  Plectritis congesta subsp. brachystemon H. E. Parks, J. P. Tracy 1934-6-14 11022 Humboldt Horse Mtn. 1220 Comment
  UC1317649  Pleuropogon refractus R. Tofsrud 1949-7-22 Humboldt on road between Scotia and Capetown Comment
  HSC10624  Poa annua E. W. Styskel 1964-4-12 65 Humboldt Corner of Center St. and Hwy. 101 in Rio Dell. Comment
  CAS-BOT-BC254713  Poa bolanderi Joseph P. Tracy 1932-7-12 10464 Humboldt Klamath Mountains. Head of Brett Hole 1828 Comment
  HSC10676  Poa confinis J. W. Johnson 1962-5-10 1340 Humboldt Arcata, Christenson Farm, Samoa Peninsula. Comment
  HSC10677  Poa confinis J. W. Johnson 1962-4-14 1250 Humboldt Arcata, Christenson Farm, Samoa Peninsula. Comment
  UC1146601  Poa douglasii Freed W. Hoffman 1946-5-21 1719 Humboldt sand dunes near Eel River Comment
  UC205645  Poa douglasii Joseph P. Tracy 1917-5-30 4804 Humboldt sand dunes of Ocean Beach at Little River Comment
  UCR80242  Poa douglasii J. P. Smith, Thomas W. Nelson 1977-6-30 9223 B Humboldt North Coast, Samoa Peninsula just east of the drag strip 6 Comment
  UC1132646  Poa kelloggii H. L. Person 1932-5-11 Humboldt near Arcata; Eureka Quadrangle Comment
  UC525619  Poa kelloggii Joseph P. Tracy 1926-5-22 7504 Humboldt Prairie Creek; Northern Coast Ranges 152 Comment
  POM303612  Poa secunda J. T. Howell 1944-7-14 19780 Humboldt Plaskett Meadows. Comment
Read comments
Jun 12 2012
  UC1565801  Poa secunda subsp. juncifolia R. Spellenberg 1990-7-10 10247 Humboldt 8 mi wsw Salyer (at 6 mi s of Berry Summit (on CA Hwy 299), extreme e edge of county) 1371 Comment
  HSC70904  Poa secunda subsp. secunda R. York 1980-5-18 598 Humboldt Near Black Mountain 792 Comment
  RSA10114  Poa trivialis Joseph P. Tracy 1926-6-12 7587 Humboldt near Quick at Davison's Ranch. 61 Comment
  RSA129470  Poa trivialis H. S. Yates 1936-6-16 5683 Humboldt Near Bayside 9 Comment
  UC589885  Poa trivialis H. S. Yates 1936-6-16 5682 Humboldt near Bayside; Eureka Quad. 9 Comment
  RSA10121  Poa unilateralis Joseph P. Tracy 1927-6-8 8113 Humboldt Trinidad 61 Comment
  HSC48881  Polycarpon tetraphyllum J. P. Smith, Thomas W. Nelson 1977-6-30 9222 Humboldt Samoa Peninsula just E of the drag strip. Comment
  SEINET10778587  Polygala J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13010 Humboldt Leggett; Redwoods River Resort, 75000 Highway 101. Comment
  JEPS43005  Polygala californica W. L. Jepson 1932-7-30 16459 Humboldt Bull Creek 121 Comment
  UC17437  Polygala californica Harley P. Chandler June 1901 1328 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC183759  Polygala californica Joseph P. Tracy 1912-6-9 3667 Humboldt Alton Northern Coast Region, Alton 30 Comment
  CAS-BOT-BC167572  Polygala cornuta var. cornuta Henry M. Pollard 1946-8-11 s.n. Humboldt Perch Creek, Orleans region Comment
  UC1541611  Polygala cornuta var. cornuta Harold E. Parks 1941-7-5 Humboldt Hors Lirito Creek Trinity River 1066 Comment
  RSA12549  Polygonum bistortoides Carl B. Wolf 1934-7-2 5889 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  JEPS50540  Polygonum davisiae W. L. Jepson 1902-7-16 2053 Humboldt Trinity Summit 2133 Comment
  HSC55083  Polygonum douglasii G. L. Clifton, Griswold 1979-7-31 11747 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  RSA466318B  Polygonum douglasii Thomas W. Nelson, James Nelson 1976-7-28 3057 Humboldt Growing on meadow along 2E27 just N of its Jct. 1S07 1524 Comment
  UC146188  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1908-6 2766 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  UC1101205  Polygonum lapathifolium Malcolm A. Nobs and S. Galen Smith 1949-8-9 1232 Humboldt Town of Blue Lake; s side Comment
  HSC55125  Polygonum minimum G. L. Clifton, Griswold 1979-8-1 11929 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC56172  Polygonum minimum G. L. Clifton, Griswold 1979-8-1 12065 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  CAS-BOT-BC109178  Polygonum paronychia Doris K. Kildale 1926-6-18 2398 Humboldt Gold Bluffs. Comment
  CAS-BOT-BC109181  Polygonum paronychia Alice Eastwood 1923-8-14 12314 Humboldt Samoa. Comment
  HSC98076  Polygonum phytolaccifolium Cara Witte 2007-7-11 506 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  CDA37208  Polygonum polystachyum B. Villegas, Bruce Bryan 2009-10-6 s.n. Humboldt Near Trinidad; Patricks Point Drive at Seawood Drive, east of Hwy 101. Comment
  CDA2924  Polygonum polystachyum Thomas W. Nelson, M. Alcasas 1978-10-1 4555 Humboldt Highway 101 right-of-way just north of Humboldt State University exit. 0 Comment
  UC1052470  Polygonum sachalinense H. E. and S. T. Parks July 1952 24448 Humboldt Hwy 10 s Elk River Bridge Comment
  CAS-BOT-BC421009  Polygonum spergulariiforme Doris Kildale 1931-6-6 10872 Humboldt Gans Prairie, Orick - Weitchpec road Comment
  HSC28487  Polypodium californicum J. D. Ackerman 1973-3-27 53 Humboldt 1.5 mi. N of Manila Comment
  CAS-BOT-BC71829  Polypodium californicum Joseph P. Tracy 1941-3-26 16835 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC1100  Polypodium californicum Francis Winter 1960-2-28 Humboldt Samoa peninsula, 6 mi. W of Arcata Comment
  HSC37827  Polypodium californicum Thomas W. Nelson, Jane Nelson 1976-2-21 2250 Humboldt Tish-Tang campground Comment
  UC667948  Polypodium glycyrrhiza Joseph P. Tracy 1936-4-26 14804 Humboldt Kneeland Prairie 762 Comment
  HSC78979  Polypodium glycyrrhiza L. P. Janeway 1984-12-5 1194 Humboldt N Spit of Humboldt Bay, W side Samoa Rd. near the boat ramp 5 Comment
  CAS-BOT-BC72084  Polypodium scouleri W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  LA10109  Polypogon interruptus H. S. Yates; 1936-6-16 5678 Humboldt 1 mi. NE of Samoa 3 Comment
  UC183446  Polypogon monspeliensis J. P. Tracy 1912-10-20 3996 Humboldt near Loleta 30 Comment
  UC50607  Polypogon monspeliensis Joseph Burtt Davy and Walter C. Blasdale 1899-6-15 5549 Humboldt near Scotia; near Scotia Comment
  HSC79150  Polystichum munitum C. J. Thomas 1984-9-25 118 Humboldt In Redwood forest immediately behind HSU fieldhouse 79 Comment
  UC249849  Polystichum munitum Joseph P. Tracy 1924-8-24 6828 Humboldt E Fork Willow Creek; Northern Coast Ranges 457 Comment
  HSC66076  Polystichum scopulinum M. S. Taylor, J. D. Jokerst, L. Ahart 1980-2-8 3214 Humboldt Humboldt Peak, N outcrop on the top 2155 Comment
  UC1225789  Populus trichocarpa Joseph P. Tracy 1948-4-11 17970 Humboldt 2 mi e Dyerville (Eel River); Eel River 48 Comment
  RSA84982  Potamogeton natans F. W. Peirson 1923-7-11 3640 Humboldt 20 miles north of Eureka. Comment
  CAS-BOT-BC453909  Potamogeton pectinatus Joseph P. Tracy 1934-7-20 13462 Humboldt Big Lagoon 3 Comment
  HSC95736  Potentilla anserina subsp. pacifica Steven Lee 2004-4-10 11 Humboldt Drive from intersection of V St. and Samoa Blvd. in Arcata 1/8 mi. towards parking area to S 200 Comment
  UC154225  Potentilla anserina subsp. pacifica Joseph P. Tracy 1907-7-20 2590 Humboldt near Samoa (region about Humboldt Bay); Northern Coast Region, Region about Humboldt Bay 0 Comment
  UC585622  Potentilla anserina subsp. pacifica Joseph P. Tracy 1934-7-30 13509 Humboldt along coast in front South End of Stone Lagoon (Dry Lagoon); , in front of South End Stone Lagoon 3 Comment
  SD42346  Potentilla anserina subsp. pacifica Carl B. Wolf 1937-9-12 9326 Humboldt Dry Lagoon State Park Comment
  RSA46469  Potentilla gracilis Doris K. Kildale 1927-7-10 3721 Humboldt Gans Prairie, Bald Hills. Comment
  HSC102177  Potentilla gracilis var. fastigiata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1090 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC540160  Potentilla gracilis var. fastigiata Doris K. Kildale 1925-8-17 1232 Humboldt Trinity Summit - Waterdog Lake 1828 Comment
  HSC97917  Potentilla gracilis var. gracilis Cara Witte 2007-6-14 287 Humboldt White Oak Opening. Along Kinsey Ridge. Near hunting camp. 1238 Comment
  NY436379  Potentilla laxiflora V. K. Chesnut 1888-7-23 s.n. Humboldt Hy-Am-Pum. Comment
  UC1198695  Potentilla palustris Joseph P. Tracy 1912-10-20 3991 Humboldt borders Loleta Pond (s of Eureka); Northern Coast Ranges, Loleta Pond 15 Comment
  HSC71584  Prosartes hookeri Gail Newton 1980-6-16 191 Humboldt Near Onion Mtn. 1280 Comment
  HSC37366  Prosartes smithii Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 499 Humboldt Along Lost Man Creek. 38 Comment
  HSC15471  Prosartes smithii D. E. Anderson 1962-3-24 1946 Humboldt Along Turner Rd. Comment
  HSC97300  Prosartes smithii M. Mesler 2006-6-24 620 Humboldt NNE of Grouse Mtn., 1.1 mi. from NF 1 1555 Comment
  HSC69855  Prunella vulgaris R. Kalal 1980-8-3 93 Humboldt Parking area of Elk Head Comment
  HSC72624  Prunella vulgaris subsp. lanceolata J. P. Smith 1977-7-3 9229 Humboldt On Forest Service Road 13N01 to Fish Lake, 3.5 mi. from its junction with Highway 36 488 Comment
  UC577391  Prunella vulgaris var. lanceolata Joseph P. Tracy 1937-6-28 15370 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  UC902030  Prunella vulgaris var. lanceolata Joseph P. Tracy 1949-8-4 18421 Humboldt Mud Springs Trinity Summit; , Mud Springs 1341 Comment
  UC1288489  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-12-29 688 Humboldt on Eel River s Meyer's Flat (Eagle Point); Eel River Comment
  UCD125323  Prunella vulgaris var. lanceolata K. Esau 1934-5-6 s.n. Humboldt Fort Seward. 152 Comment
  CAS-BOT-BC159977  Prunus emarginata Doris K. Kildale 1927-6-26 3600 Humboldt Big Lagoon Comment
  HSC31454  Prunus emarginata D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5572 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  OBI36664  Prunus emarginata David J. Keil 1983-7-2 17323 Humboldt Ca. 4 mi SE ofSR 299 along titlow Hill Rd below Horse Mtn Summit Rd Comment
  POM160879  Prunus emarginata Joseph P. Tracy 1923-4-15 6195 Humboldt Hungry Hollow on Bald Mt. Comment
  RSA43863  Prunus emarginata H. M. Pollard 1947-9-1 s.n. Humboldt Near summit of Somes Peak, Orleans region. 1524 Comment
  HSC97633  Prunus virginiana var. demissa Cara Witte 2007-6-12 247 Humboldt Cold Spring. 1410 Comment
  UC666842  Prunus virginiana var. demissa Joseph P. Tracy 1933-7-16 12796 Humboldt South Fork Mountain, W slope near top, at Hyampom Trail 1676 Comment
  HSC5694  Pseudognaphalium ramosissimum Jerry Parker 1968-11-19 244 Humboldt Clam Beach, 1/4 mi. S of Strawberry Cr. Comment
  HSC35629  Pseudognaphalium stramineum Thomas W. Nelson, James Nelson 1975-8-5 2142 Humboldt Along south spit of Humboldt Bay ca. 1 mile N. of Table Bluff Comment
  BLMAR704  Pseudognaphalium stramineum Jennifer Anthony-Wheeler 1994-9-8 704 Humboldt Samoa dunes, growing atop a knoll/dune with I the Samoa Pen. Rare plant area 15 Comment
  UC164843  Pseudognaphalium stramineum Joseph P. Tracy 1911-7-5 3306 Humboldt along, near its mouth Willow Creek (tributary of Trinity River); Northern Coast Ranges, Trinity River, Willow Creek 182 Comment
  JEPS20483  Pseudognaphalium thermale Joseph P. Tracy 1938-8-14 16111 Humboldt Willow Creek Trinity River Valley, Willow Creek Comment
  UCD20403  Pseudognaphalium thermale Donald C. Hagar 1957-8-15 199 Humboldt 4.5 miles NE of Salyer, Cedar Creek Divide, 3500 ft. elev. 1066 Comment
  HSC44052  Pseudotsuga menziesii var. menziesii Thomas W. Nelson, Jane P. Nelson 1977-4-23 3345 Humboldt Tributary to Blanket Creek 1463 Comment
  HSC70640  Pseudotsuga menziesii var. menziesii R. York 1980-5-18 593 Humboldt Near Black Mtn. 792 Comment
  HSC76291  Pseudotsuga menziesii var. menziesii Denis Kearns 1981-7-23 391 Humboldt Near Whiteys Peak 732 Comment
  OBI36577  Pseudotsuga menziesii var. menziesii David J. Keil 1983-7-1 17264 Humboldt Ca. 8 mi W of jctn US101 along Bull Crk Flats rd Comment
  UC63997  Pseudotsuga menziesii var. menziesii Mrs. M. H. Manning 1902-4-7 Humboldt Comment
  UC709421  Pseudotsuga menziesii var. menziesii Joseph P. Tracy 1941-4-11 16859 Humboldt Willow Creek Canyon; along Trinity Highway 609 Comment
  RSA170252  Psilocarphus brevissimus Joseph P. Tracy, Francis W. Pennell 1940-7-7 16674 Humboldt Grouse Mountain. 1555 Comment
  UC1199361  Psilocarphus tenellus Joseph P. Tracy 1915-6-27 4661 Humboldt near Carlotta; Northern Coast Ranges, Yager Creek 60 Comment
  SEINET11793951  Psilocarphus tenellus var. tenellus J. P. Tracy 1942-1 17293 Humboldt 1 mi N of Redwood House, valley of South Yager Creek 610 Comment
  HSC76322  Pteridium aquilinum var. pubescens Denis Kearns 1981-7-24 446 Humboldt Near Whiteys Peak. 1768 Comment
  JEPS19284  Pycnanthemum californicum Joseph P. Tracy 1931-9-7 9637 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  HSC45425  Pyrola aphylla Thomas W. Nelson, Jane Nelson 1977-7-1 3556 Humboldt N side of ridge between Bear Creek & Blanket Creek 1463 Comment
  CAS-BOT-BC462868  Pyrola asarifolia Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC55263  Pyrola crypta Overton, Butler 1979-8-2 12608 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC75947  Pyrola crypta Overton, Butler 1979-7-24 9719 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC72790  Pyrola dentata M. A. Baker 1980-6-16 1935 Humboldt Near Monks Camp 109 Comment
  CAS-BOT-BC62670  Quercus chrysolepis Doris K. Kildale 1926-9-5 2640 Humboldt on trail between Red Peaks & Signal Peak Lassiks Peaks 1706 Comment
  HSC8335  Quercus chrysolepis Elrid H. Spinas 1948-5-22 36 Humboldt Horse Mtn. Comment
  HSC74269  Quercus garryana M. A. Baker 1980-5-23 1371 Humboldt Near Buck Mtn. 1524 Comment
  HSC98612  Quercus garryana var. garryana Cara Witte 2008-6-13 716 Humboldt Forest Service Road 4N32. 1.4 miles north of intersection with Forest Service Road 4N32B. 1382 Comment
  HSC8262  Quercus kelloggii Doris K. Kildale 1926-7-25 2432 Humboldt Briceland Bridge, 1/2 mi. W of Garberville 114 Comment
  UC1196358  Quercus kelloggii Joseph P. Tracy 1913-6-22 4270 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UCD46719  Quercus kelloggii Lincoln Constance 1934-5-29 738 Humboldt Upper Look Prairie, south fork Eel River, Humboldt County, California. 365 Comment
  CDA22029  Quercus sadleriana G. J. Muth 1972-8-15 1845 Humboldt Near Big Hill Road. 167 mm from bottom margin, 258 mm from left margin. Comment
  RSA622137  Quercus vacciniifolia J. M. Tucker 1948-9-3 1851 Humboldt Horse Mountain, at junction of roads to Grouse Mountain and to Horse Mountain Mine, Six Rivers National Forest. 1463 Comment
  SFV17761  Quercus vacciniifolia J. M. Tucker 1948-9-3 1851 Humboldt Horse Mountain, at junction of roads to Grouse Mountain and to Horse Mountain Mine. 1463 Comment
  UC902026  Quercus vacciniifolia Joseph P. Tracy 1949-8-26 18526 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  HSC26634  Ranunculus alismifolius var. alismifolius Thomas W. Nelson 1971-5-31 452 Humboldt Vernal pond Comment
  POM270026  Ranunculus aquatilis var. hispidulus Joseph P. Tracy 1937-5-30 15311 Humboldt In Shallow pond near Bosworth's, alt 1200ft. Larrabee Creek. Comment
  HSC79359  Ranunculus californicus Kenneth Clark 1980-3-22 521 Humboldt Ridge above Dead Man's Gulch 152 Comment
  CAS-BOT-BC378924  Ranunculus californicus var. californicus J. P. Tracy 1910-5-8 3132 Humboldt immediate vicinity of Eureka 152 Comment
  JEPS5880  Ranunculus flammula Joseph P. Tracy 1937-5-30 15312 Humboldt near Bosworth's; Larrabee Creek 365 Comment
  RSA273369  Ranunculus flammula J. O. Sawyer 1977-4-25 3043 Humboldt Along N side of Buttermilk lane Sunnybrae. Across the street from 1425 Buttermilk Lane Comment
  POM269622  Ranunculus flammula var. ovalis Joseph P. Tracy 1934-7-13 13390 Humboldt Dow's Prairie Comment
  BLMAR637  Ranunculus occidentalis Jennifer Anthony-Wheeler 2011-6-21 637 Humboldt Lacks Creek, Pine Ridge Road 914 Comment
  JEPS55004  Ranunculus occidentalis Lincoln Constance 1934-5-24 645 Humboldt Bull Creek Region South Fork Eel River 121 Comment
  UC303000  Ranunculus occidentalis Joseph P. Tracy 1926-6-20 7618 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  UC1196234  Ranunculus occidentalis Joseph P. Tracy 1914-5-3 4417 Humboldt corner Harris St. and Broadway (top of Bluff); Northern Coast Region, Eureka 0 Comment
  HSC18160  Ranunculus occidentalis var. occidentalis Harvey Doerksen 1962-5-22 30 Humboldt Camp Bauer, across Mad River from Korbel Comment
  RSA115000  Ranunculus occidentalis var. rattanii E. K. Balls, Lee W. Lenz 1955-5-16 20745 Humboldt 2.7 miles NW of Ettersburg along old Coast Road. 457 Comment
  UC480960  Ranunculus repens Harley P. Chandler May, 1901 1111 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  HSC18175  Ranunculus repens var. repens E. Hunt 1949-3-9 13 Humboldt Elk River Comment
  HSC100621  Ranunculus tenellus Carl C. Marshall May 1886 222 Humboldt Damp woods. Comment
  UCD18404  Ranunculus testiculatus Jack Major 1982-4-18 s.n. Humboldt 13 miles east of Winnemucca on I-80, north lane. Comment
  POM311438  Ranunculus uncinatus var. parviflorus D. E. Breedlove 1962-6-8 3072 Humboldt Along Hwy 101, 8 miles N of Orick. 61 Comment
  POM246499  Rhamnus californica Carl B. Wolf 1934-6-30 5842 Humboldt Back of Shelter cove. 61 Comment
  CDA35698  Rhamnus californica subsp. occidentalis T. R. Gallion 1960-7-7 Humboldt Weitchpec. 0 Comment
  JEPS41976  Rhamnus purshiana W. L. Jepson 1936-8-18 17942 Humboldt Wildcat Ridge, w Humboldt Co. Wildcat Ridge Comment
  RSA355693  Rhamnus purshiana Walter Wisura, Dave Kelly 1986-7-30 4134 Humboldt N of Crannel, on Lousiana Pacific Lumber Co. property, ca. 6 mi beyond the gate, beyond the nursery area, at edges of opening in Redwood forest. Comment
  CAS-BOT-BC56614  Rhododendron macrophyllum Ella Dales Cantelow 1936-5-17 1235 Humboldt 9 mi. e. of Orick Comment
  HSC7873  Rhododendron macrophyllum P. Markle 1962-5-22 54 Humboldt End of 18th St., Arcata Community Forest Comment
  HSC7882  Rhododendron macrophyllum V. G. Vieira 1963-5-4 21 Humboldt Essex Pond Comment
  UC154176  Rhododendron macrophyllum Mrs. M. H. Manning 1900-7 Humboldt near Hupa Comment
  UC1197788  Rhododendron occidentale Joseph P. Tracy 1938-6-16 15943 Humboldt Trinidad 60 Comment
  UC604646  Rhododendron occidentale Joseph P. Tracy 1938-6-16 15944 Humboldt Trinidad 60 Comment
  SEINET11996977  Rhododendron occidentale F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -296 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  CAS-BOT-BC433145  Ribes Doris K. Kildale 1928-7-1 5306 Humboldt French Camp on Orick-Martin's Ferry road 853 Comment
  HSC97217  Ribes bracteosum M. Mesler 2007-3-23 743 Humboldt Near Trinidad, trail from Mill Creek to Elk Head, along creek near beach. 23 Comment
  CAS-BOT-BC108909  Ribes divaricatum var. pubiflorum Doris K. Kildale 1926-3-25 1619 Humboldt Liscom Hill. Lower Mad River. 30 Comment
  UC1586907  Ribes lacustre Juha Pykala and D. H. Norris 1987-6-11 1589 Humboldt s North Trinity Mountain (w of Crogan Hole); North Trinity Mountain Wilderness Area 1550 Comment
  CAS-BOT-BC176805  Ribes laxiflorum Alice Eastwood 1907-4-22 45 Humboldt Near [Orricks] Orick Comment
  CAS-BOT-BC173360  Ribes lobbii Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC102024  Ribes lobbii M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 925 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  CSUSB1882  Ribes menziesii Keith Thompson 1972-3-27 Humboldt Maple Cr. 853 Comment
  HSC34814  Ribes menziesii Pamela Bruce 1975-4-8 1 Humboldt 0.5 mi. N of School Rd. on Washington Ave. 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
  RSA0021765  Ribes menziesii Doris K. Kildale 1929-2-28 6949 Humboldt Humboldt State Teachers College, Arcata. Comment
  RSA0021770  Ribes menziesii H. E. Parks 1933-04 4402 Humboldt McNeils Creek, vicinity of Trinidad. Comment
  HSC20325  Ribes roezlii J. Sandborg, F. Sandborg 1968-7-19 56 Humboldt Bluff Creek near Notice Creek 793 Comment
  HSC98865  Ribes roezlii var. cruentum Cara Witte 2008-7-30 970 Humboldt Forest Service Road 4N32. 1/2 mile north of intersection with Forest Service Road 4N32B. 1417 Comment
  UC1198943  Ribes roezlii var. cruentum Joseph P. Tracy 1927-3-27 7871 Humboldt East Fork of Willow Creek Northern Coast Ranges, Willow Creek Canyon 457 Comment
  CAS-BOT-BC212521  Ribes sanguineum Harley P. Chandler 1901-6-1 1287 Humboldt Hupa Indian Reservation 1097 Comment
  UC1563694  Ribes sanguineum Barbara Ertter with Thomas J. Delendick 1987-5-16 6939 Humboldt ca. 3 mi e Berry Summit (on Hwy 299, on s side of road above Willow Cr., ca. 20 air mi e of Arcata) 800 Comment
  UC902091  Ribes sanguineum Joseph P. Tracy 1948-9-5 18178 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UCD102487  Ribes sanguineum G. F. Hrusa 1992-5-5 10436 Humboldt Cedar Camp Rd. approximately 10 m. west of Orleans. Mile 9.0. Comment
  HSC103214  Ribes sanguineum var. glutinosum Jade Paget-Seekins 2010-3-27 8 Humboldt Elkhead (just north of Trinidad on Stagecoach Road). 40 Comment
  HSC95681  Ribes sanguineum var. glutinosum Steven Lee 2004-3-23 4 Humboldt Manila Dunes along Samoa Blvd., 200ft W of first powerline in parking area along Gun Club Rd. Comment
  CAS-BOT-BC173989  Ribes viscosissimum Doris K. Kildale 1925-8-17 1199 Humboldt Trinity Summit 1917 Comment
  UC667028 Image available Ribes viscosissimum Joseph P. Tracy 1933-7-16 12788 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC1239758  Romanzoffia californica Joseph P. Tracy 1946-5-19 17529 Humboldt Kneeland Prairie 762 Comment
  POM312447  Rorippa curvisiliqua Malcolm A. Nobs, S. Galen Smith 1949-8-9 1238 Humboldt Marshy pond on south side of the town of Blue Lake. Comment
  HSC19624  Rosa gymnocarpa Lincoln Constance 1934-6-2 791 Humboldt Bull Creek Rd. to mouth of Bull Creek, top Bull Creek Comment
  JEPS48709  Rosa gymnocarpa Hilda W. Grinnell 1932-7-9 1 Humboldt McKay Camp So. Fork Mt. 1676 Comment
  RSA166375  Rosa gymnocarpa Robert F. Thorne 1957-9-2 18999 Humboldt Burlington State Park, just S of Weott. Comment
  HSC19632  Rosa nutkana W. A. Heaton 1965-5-17 12 Humboldt 1/2 mi. N of Trinidad St. Park Comment
  CHSC31292  Rosa pinetorum Mark Stopher 1980-7-11 115 Humboldt Along Elk River near Hwy 101 bridge. Comment
  HSC35815  Rosa rubiginosa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1921 Humboldt Above Goat Rock, 2 mi. W of Bridgeville Comment
  UC467840  Rubus leucodermis Joseph Burtt Davy and Walter C. Blasdale 1899-5 5423 Humboldt near Hubbards Station (nw California); near Hubbards Station Comment
  HSC22496  Rubus parviflorus G. T. Nordstrom 1966-4-24 11 Humboldt Kneeland-Maple Creek Rd. near jct. with Korbel Rd. Comment
  HSC73171  Rubus parviflorus M. A. Baker 1980-5-18 1346 Humboldt Near Black Mtn. 792 Comment
  UCD20671  Rubus parviflorus A. T. Leiser 1980-7-9 s.n. Humboldt Humboldt County, North of Orick, Hwy 101 reroute, near Redwood Park. Comment
  UC1541464  Rubus praecox H. E. Parks April 1935 5537 Humboldt Trinidad 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
  HSC19687  Rubus spectabilis R. E. Hafenfeld 1965-5-9 6 Humboldt 1/4 mi. from County Rd. and Gold Bluff Beach Rd. jct. Comment
  HSC99432  Rubus ursinus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 81 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1199049  Rubus ursinus J. P. Tracy 1901-6-23 1164 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UC1541398  Rumex acetosella W. K. Parks Jun 1932 Humboldt vicinity Trinidad Comment
  UC672931  Rumex acetosella Joseph P. Tracy 1930-7-17 9028 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC37233  Rumex acetosella Lon Hall 1975-6-19 399 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  HSC89469  Rumex acetosella P. A. Daly 1986-3-12 99 Humboldt Trinidad Head, along trail 61 Comment
  CAS-BOT-BC421750  Rumex conglomeratus Carl B. Wolf 1927-8-30 1231 Humboldt 2 mi. s. of Petrolia on Matole River near point where road crosses river Comment
  CHSC31287  Rumex crispus Mark Stopher 1980-6-4 100 Humboldt In diked off upland habitat along Elk River near Hwy 101 bridge. 1 Comment
  HSC90647  Rumex crispus Gail Newton 1982-6-10 3604 Humboldt Elk River Wildlife Area, Eureka Comment
  UC1225805  Rumex crispus Joseph P. Tracy 1948-9-12 18209 Humboldt meadow at Box Camp Trinity Summit 1463 Comment
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Aug 5 2009
  SEINET200757  Rumex crispus Joseph P. Tracy 1908-7-30 2806 Humboldt Valley of Van Duzen River, opposite Buck Mountain. 300 Comment
  CHSC23320  Rumex fueginus Robert F. Thorne; P. Everett 1965-8-9 35329 Humboldt Clam Beach County Park; along highway in shallow water of ditch. 3 Comment
  HSC99577  Rumex occidentalis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 242 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
  UC1222604  Rupertia physodes Joseph P. Tracy 1950-6-15 18783 Humboldt 7 mi n Harris; Mail Ridge, Jenk's Ranch 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
  HSC4151  Sagina decumbens subsp. occidentalis J. P. Tracy 1905-4-30 2172 Humboldt Beach of Humboldt Bay Comment
  CAS-BOT-BC129884  Salix bonplandiana Mrs. H. P. Bracelin 1931-5-1 272 Humboldt Sylvandale, between Miranda and Meyers, South Fork of Eel River 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-BC103809  Salix exigua Joseph P. Tracy 1932-4-17 9798 Humboldt Eel River, Alton to Fortuna 15 Comment
  CAS-BOT-BC103818  Salix exigua Harold E. Parks 1931-5-14 0964 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  LA208631  Salix exigua var. hindsiana Harold E. Parks; 1931-8-25 1061 Humboldt Blue Slide, Van Duzen River 90.0 Comment
  SBBG29096  Salix exigua var. hindsiana C. R. Ball, H. Parks, J. Tracy 1932-5-17 1336 Humboldt above Trinity River, 1 mi above bridge on Trinity Hwy 152 Comment
  CAS-BOT-BC104098  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0975 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC104105  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01335 Humboldt above Trinity River, 1 mile below bridge on Trinity Highway 152 Comment
  CAS-BOT-BC107715  Salix hookeriana Doris K. Kildale 1926-6-29 2238 Humboldt Mouth of Mad River Comment
  HSC40879  Salix hookeriana Linda M. Barker 1976-6-14 1599 Humboldt 3 mi. W of Arcata, Lanphere-Christensen Dunes Comment
  HSC90193  Salix hookeriana Jean Hanson 1980-3-8 10 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC90432  Salix hookeriana Jean Hanson 1980-3-8 19 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  SD936  Salix hookeriana Harold E. Parks 1931-3-24 914 Humboldt Fortuna, on banks of Eel River 10 Comment
  UC1173586  Salix hookeriana Joseph P. Tracy 1936-8-17 15159 Humboldt Mad R. at mouth of Lindsey Creek; Mad R., Lindsey Creek 15 Comment
  UC1196629  Salix hookeriana Joseph P. Tracy 1919-3-23 5121 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC146207  Salix hookeriana J. P. Tracy 1905-4 2392 /2168 Humboldt Immediate vicinity of Eureka 0 Comment
  UC275502  Salix hookeriana Joseph P. Tracy 1925-2-15 6938 Humboldt Eureka Northern Coast Ranges, Eureka 60 Comment
  UC481264  Salix hookeriana Harold E. Parks 1931-5-28 999 Humboldt Little River Lagoon Comment
  UC481389  Salix hookeriana Harold E. Parks 1931-3-24 915 Humboldt Trinidad 90 Comment
  UC490478  Salix hookeriana Joseph P. Tracy 1932-8-27 10755 Humboldt along Van Duzen R. Alton (<1st. tree> after crossing small creek separating our parking place from open river bar.); North Coast Ranges, Van Duzen R. 30 Comment
  UC518899  Salix hookeriana Jim Davis 1933-4-25 4 Humboldt around Eureka Comment
  UCD111038  Salix hookeriana Linda M. Barker 1976-4-30 1415 Humboldt 3 miles west of Arcata. Comment
  HSC104061  Salix hookeriana M. F. Norman 2015-4-11 2 Humboldt Arcata, Ma-le'l Dunes Comment
  UC906709  Salix laevigata Harold E. Parks and Joseph P. Tracy 1942-5-16 11567 Humboldt vicinity of Garberville 152 Comment
  UC512108  Salix lasiandra subsp. lasiandra Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1206 Humboldt 4 1/2 mi. s. Trinidad (Little R. Lagoon); Little R. Lagoon Comment
  UC519383  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1933-5-14 12179 Humboldt at Willow Creek bridge Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UCD111578  Salix lasiandra var. lasiandra Joseph P. Tracy 1947-8-24 17896 Humboldt Trinity Summit, meadow at Box Camp. 1463 Comment
  CHSC96698  Salix lasiolepis Gordon Leppig 1999-4-15 1119 Humboldt Big Lagoon County Park, Big Lagoon Bog. On western edge of fen. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  HSC96597  Salix lasiolepis Gordon Leppig 2003-2-22 1812 Humboldt Arcata Marsh, NE corner of log pond 3 Comment
  JEPS13836  Salix lasiolepis Joseph P. Tracy 1926-8-12 7760 Humboldt at Berry's Redwood Creek; Northern Coast Ranges 274 Comment
  RSA34303  Salix lasiolepis Doris K. Kildale 1928-3-27 4359 Humboldt [Unspecified] Comment
  UC490552  Salix lasiolepis Joseph P. Tracy 1932-3-6 9775 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC504022  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1254 Humboldt 2 mi E of Redwood Highway ( Mad River at Engelhart gravel pit, above Blue Lake) Comment
  UC506342  Salix lasiolepis Joseph P. Tracy 1933-4-9 10966 Humboldt Bridgeville, along Van Duzen River 228 Comment
  UC506375  Salix lasiolepis Joseph P. Tracy 1933-4-9 10963 Humboldt Bridgeville 228 Comment
  UC506509  Salix lasiolepis Joseph P. Tracy 1932-6-4 10130 Humboldt Bridgeville Northern Coast Ranges, Bridgeville 228 Comment
  UC512044  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1317 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  CAS-BOT-BC107298  Salix lasiolepis var. bigelovii Harold E. Parks; Joseph P. Tracy 1931-5-17 0976 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  RSA34288  Salix lucida subsp. lasiandra Doris K. Kildale 1927-5-13 3178 Humboldt Redwood Creek at Berry's Comment
  CAS-BOT-BC125609  Salix melanopsis Joseph P. Tracy 1911-7-4 3295 Humboldt Along Willow Creek (Tributary of Trinity River) near its mouth 182 Comment
  CAS-BOT-BC125618  Salix melanopsis A. A. Heller 1923-7-10 13796 Humboldt Along the Eel River between Scotia and Pepperwood Comment
  CAS-BOT-BC125625  Salix melanopsis Joseph P. Tracy 1932-4-17 9798 Humboldt Eel River, Alton to Fortuna 15 Comment
  CAS-BOT-BC125637  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 284 Humboldt East of Redwood Highway, 6 km. south of Alton 20 Comment
  HSC20032  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt E of Redwood Hwy., 6 km S of Alton 20 Comment
  LA208880  Salix melanopsis Harold E. Parks; 1931-5-14 956 a Humboldt Van Duzen River above Bridgeville 300.0 Comment
  SBBG28829  Salix melanopsis H. E. Parks 1931-5-14 964 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  UC469453  Salix melanopsis Joseph P. Tracy 1931-6-14 9582 Humboldt Van Duzen R. Alton; Northern Coast Region, , Alton 30 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
  UC481169  Salix melanopsis Harold E. Parks 1931-8-25 1061 Humboldt Van Duzen R. Blue Slide; , Blue Slide 90 Comment
  UC481342  Salix melanopsis Harold E. Parks 1931-10-15 1077 Humboldt Bishop Pine Lodge Trinidad 75 Comment
  UC511973  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1252 Humboldt Mad River at Engelhart gravel pit (2 mi. e. of Redwood Hwy. and above Blue Lake Rd.) Comment
  RSA0030801  Salix parksiana H. E. Parks 1931-5-14 0961 Humboldt Ban Duzen River between Alton and Carlotta 15 Comment
  CAS-BOT-BC129173  Salix scouleriana H. E. Parks 1933-1-24 1352 Humboldt Spruce Cove (Parks Ranch), Trinidad Comment
  HSC102104  Salix scouleriana M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1007 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC20076  Salix scouleriana J. P. Tracy 1932-7-13 10507 Humboldt Klamath Mtns., Trinity summit, Corral Prairie 1524 Comment
  HSC20087  Salix scouleriana D. Sutherland, R. Spellenberg, A. Sylvester 1966-3-27 1359 Humboldt 1 mi. E of N Fork of the Mad River along Hwy. 299 Comment
  HSC41937  Salix scouleriana Ed Cope 1977-4-23 24 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  JEPS38418  Salix scouleriana W. L. Jepson 1932-7-27 16426 Humboldt Bull Creek 106 Comment
  SD884  Salix scouleriana Harold E. Parks 1931-5-12 955 a Humboldt Samoa, Humbolt Bay Comment
  CAS-BOT-BC128984  Salix sitchensis Harold E. Parks 1931-3-24 910 Humboldt Trinidad 90 Comment
  CAS-BOT-BC128990  Salix sitchensis Doris K. Kildale 1926-3-28 1690 Humboldt Redmond Creek near Berry's 289 Comment
  HSC37884  Salix sitchensis Thomas W. Nelson 1976-4-3 2286 Humboldt Van Duzen River at Grizzley Creek Comment
  HSC90424  Salix sitchensis Jean Hanson 1980-3-8 8 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  POM161040  Salix sitchensis Joseph P. Tracy 1926-12-5 7833 Humboldt Blue Slide on van Duzen River. 91 Comment
  POM219562  Salix sitchensis H. E. Parks 1931-3-25 903 Humboldt Orick. Van Duzen River. 6 Comment
  UC54676  Salix sitchensis J. P. Tracy 1901-4-7 1008 Humboldt vicinity of Eureka 0 Comment
  UC1173598  Salix tracyi Joseph P. Tracy 1936-3-29 14785 Humboldt South Fork of Eel River, between Miranda and Redway 91 Comment
  CAS-BOT-BC235015  Sambucus L. R. Abrams 1918-6-16 7181 Humboldt Willow Creek Comment
  UC168949  Sambucus mexicana Joseph P. Tracy 1911-7-9 3465 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  HSC57090  Sambucus nigra subsp. caerulea Overton, Butler 1979-7-24 9804 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC59203  Sambucus racemosa var. racemosa Terry Roth 1979-4-21 15 Humboldt 0.4 mi. from Table Bluffs County Park on Table Bluffs Rd. 15 Comment
  HSC59562  Sambucus racemosa var. racemosa Rick Lundquist 1979-4-6 3 Humboldt Arcata, SE Corner of 7th and Union St. 24 Comment
  SEINET3103511  Sambucus racemosa var. racemosa Steve Selva, Rodger Jensen 1974-8-28 99 Humboldt Redwood forest behind Humboldt State University, Arcata. Comment
  HSC21616  Sanicula arctopoides D. E. Anderson 1962-3-25 1950 Humboldt 1/4 mi. N of Fairhaven Comment
  HSC77511  Sanicula arctopoides K. Berg 1984-4-8 519 Humboldt Centerville Beach, about 0.5 mi. N of County Park parking lot Comment
  HSC86898  Sanicula arctopoides Anthony J. Desch, Bryon Cariss 1988-4-21 61 Humboldt 0.4 mi. N of W end of Samoa Bridge Comment
  UC1197115  Sanicula arctopoides Joseph P. Tracy 1933-5-9 12164 Humboldt vicinity of Trinidad (Northern Coast Region); Northern Coast Region 60 Comment
  UC1541386  Sanicula arctopoides H. E. Parks May 1934 4327 Humboldt Trinidad, Egg Point Egg Point; Trinidad, Egg Point Comment
  UC1197103  Sanicula bipinnatifida Joseph P. Tracy 1923-4-1 6173 Humboldt near Blue Lake (Northern Coast Ranges); Northern Coast Ranges 304 Comment
  UC642282  Sanicula crassicaulis Joseph P. Tracy 1927-5-8 7968 Humboldt Phillipsville, South Fork Eel River South Fork Eel River; Phillipsville, South Fork Eel River 121 Comment
  HSC96220  Sanicula crassicaulis April A. Allard, Gregory D. O'Connell 2005-6-8 4 Humboldt 0.4 mi. S of Hwy. 299 on Titlow Hill Rd. 854 Comment
  HSC101038  Sanicula tracyi A. Thoele, D. Pederson 1995-7-2 61 Humboldt East side of Pilot Creek, FB5 (fuel break) skid trail. 1188 Comment
  UC154132 Image available Sanicula tracyi Joseph P. Tracy 1908-6-30 2740 Humboldt nw slope Buck Mountain; Northern Coast Ranges; NW slope of Buck Mt., Humboldt Co. 762 Comment
  UC183564  Sanicula tuberosa Joseph P. Tracy 1912-7-31 3943 Humboldt Northern Coast Ranges, Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1524 Comment
  UC577374  Satureja douglasii Joseph P. Tracy 1923-6-20 6315 Humboldt White Thorn Valley 304 Comment
  UC1198889  Saxifraga mertensiana Joseph P. Tracy 1932-4-24 9813 Humboldt between Miranda and Redway (South Fork Eel River); North Coast Ranges, South Fork Eel River 91 Comment
  JEPS47545  Saxifraga oregana Joseph P. Tracy 1932-7-14 10566 Humboldt Trinity Summit, at Corral Prairie Trinity Summit; Klamath Mountains, , Corral Prairie 1524 Comment
  UC642324  Scandix pecten-veneris Joseph P. Tracy 1927-4-24 7926 Humboldt Eureka 15 Comment
  HSC7437  Schoenoplectus acutus var. occidentalis D. E. Anderson 1961-9-9 1784 Humboldt Along Hwy. 101 Comment
  RSA366412  Schoenoplectus pungens Joseph P. Tracy 1914-5-30 s.n. Humboldt North Coast, near Hydesville Comment
  HSC93525  Schoenoplectus pungens Gordon Leppig 1998-6-25 855 Humboldt McKinleyville, Mad River Estuary at end of Murray Rd. 0 Comment
  JEPS79980  Scirpus cernuus Joseph P. Tracy 1938-6-16 15942 Humboldt Trinidad 3 Comment
  UC1103630  Scirpus cernuus Joseph P. Tracy 1939-8-20 16433 Humboldt Big Lagoon 6 Comment
  UC249743  Scirpus congdonii Joseph P. Tracy 1924-7-4 6707 Humboldt Snow Camp , Snow Camp (Northern Coast Ranges) 1371 Comment
  CDA39134  Scirpus koilolepis Gordon Leppig 1999-10-3 1257 Humboldt Big Lagoon County Park, Big Lagoon Bog. Comment
  SBBG88776  Scirpus microcarpus A. Keedy 1988-9-28 14 Humboldt Alder Grove Rd near Hwy 299, N of Arcata Comment
  UC1152056  Scirpus microcarpus Joseph P. Tracy 1950-8-7 19269 Humboldt meadow at Box Camp (Trinity Summit); , meadow at Box Camp 1463 Comment
  RSA167281  Scirpus microcarpus Joseph P. Tracy 1949-9-1 18533 Humboldt Trinity River Valley, at Willow Creek: Dusky s Spring 152 Comment
  UC1103492  Scoliopus bigelovii Joseph P. Tracy 1936-4-26 14808 Humboldt Kneeland Prairie 762 Comment
  UC30090  Scoliopus bigelovii Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5299 Humboldt Hubbard's Station North Coast Ranges, Hubbard's Station Comment
  CAS-BOT-BC517417  Scoliopus bigelovii Alice Eastwood; John Thomas Howell 1937-6-23 4778 Humboldt Near Dinsmores Comment
  HSC15638  Scoliopus bigelovii O. E. Rogers 1962-3-17 29 Humboldt S of Kneeland 671 Comment
  UC582593  Scrophularia californica Joseph P. Tracy 1933-8-22 12980 Humboldt Eureka 6 Comment
  HSC90314  Scrophularia californica Jean Hanson 1981-5-10 139 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka, W end of island Comment
  UC1409052  Scrophularia californica subsp. californica Robert F. Thorne and P. Everett 1965-8-9 35314 Humboldt Clam Beach County Park 3 Comment
  UCR122374  Scrophularia californica subsp. californica George K. Helmkamp, E. A. Helmkamp 2001-7-8 7011 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  JEPS62913  Scutellaria antirrhinoides Lincoln Constance 1934-5-23 614 Humboldt upper end of Look Prairie (South Fork Eel River); Bull Creek Region, , Look Prairie 365 Comment
  CDA41033  Scutellaria siphocampyloides B. F. Kemp 1958-7-5 838 -58 Humboldt Knight Ranch, 4 miles north of Willow Creek. 0 Comment
  HSC65963  Sedum laxum subsp. flavidum M. A. Baker 1980-7-15 2941 Humboldt Near Whiting Ridge. 1341 Comment
  HSC79271  Sedum laxum subsp. flavidum D. K. Imper 1984-5-17 Humboldt Hogback Ridge W of FS6N06, 1.0 mi. N of junction with 5N01 1341 Comment
  HSC58040  Sedum obtusatum subsp. retusum Gilbert Muth 1979-8-1 11883 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  CAS-BOT-BC64703  Sedum oregonense Doris K. Kildale 1925-8-17 1221 Humboldt Trinity Summit 1828 Comment
  HSC32326  Sedum radiatum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5667 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC98588  Sedum radiatum Cara Witte 2008-7-16 916 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC1225752  Sedum radiatum Joseph P. Tracy 1948-5-31 18000 Humboldt Harris Harris (on rock ledge in shade) 762 Comment
  RSA0074871  Sedum radiatum subsp. radiatum C. B. Wolf 1937-6-14 2858 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  CHSC79937  Selaginella wallacei L. P. Janeway 1996-8-4 5061 Humboldt High North Coast Ranges. Along Titlow Hill Road (Road #1) about 0.3 mi west of the spur road to top of Horse Mountain. 1341 Comment
  HSC38491  Selaginella wallacei D. E. Anderson, J. P. Smith 1971-6-18 - 1097 Humboldt Horse Mtn. Comment
  CAS-BOT-BC69735  Selaginella wallacei Donald L. Branscomb 1957-12-26 s.n. Humboldt Look Out Rock, Patrick's Point. Comment
  CDA19897  Senecio cineraria P. Haggard 2002-7-1 PDR P 070939 Humboldt Northern California; on Hwy 36 near Carlotta. 0 Comment
  UC1239501  Senecio glomeratus Joseph P. Tracy 1936-8-24 15173 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC1199242  Senecio integerrimus var. major Joseph P. Tracy 1938-6-13 15914 Humboldt Cold Springs Grouse Mountain 1432 Comment
  UCD135616  Senecio minimus Linda M. Barker 1976-8-2 1677 Humboldt 3 miles west of Arcata. Comment
  UC1199490  Senecio minimus Joseph P. Tracy 1920-9-19 5400 Humboldt along newly constructed road, North Fork of Mad River; Northern Coast Ranges 304 Comment
  UCD135609  Senecio minimus John M. Tucker 1948-9-4 1863 Humboldt Beck's Ranch, Hydesville. Comment
  CAS-BOT-BC364331  Senecio triangularis Doris K. Kildale 1925-8-16 1172 Humboldt Trinity Summit - Elk Horn Prairie 1524 Comment
  UC1070215  Senecio vulgaris H. L. Person 1932-8-20 18486 Humboldt Eureka Inn Eureka, Eureka Inn Comment
  JEPS46746  Sequoia sempervirens Willis G. Corbitt 1931-4-8 Humboldt Scotia Comment
  RSA175208  Sequoia sempervirens Robert F. Thorne 1957-9-2 18996 Humboldt Burlington State Park, just S of Weott. Comment
  UC1145167  Setaria viridis Joseph P. Tracy 1948-7-26 18078 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  HSC21962  Sherardia arvensis C. Kline 1970-10-28 55 Humboldt North Bank Rd., 3 mi. W of Blue Lake, Mad River gravel bottoms Comment
  CAS-BOT-BC205596  Sidalcea malviflora Peter H. Raven; R. Snow 1958-7-20 13639 Humboldt 2.0 miles south of junction of Friday Ridge Road on Titlow Hill Road, near Grouse Mountain Comment
  UC302048  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1926-6-20 7659 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  UC502955  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1929-7-4 8626 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  HSC75946  Sidalcea malviflora subsp. nana Overton, Butler 1979-7-24 9725 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC99563  Sidalcea oregana subsp. eximia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 228 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
  JEPS67278  Sidalcea oregana subsp. eximia Joseph P. Tracy 1937-8-22 15671 Humboldt 2 mi s Field's Landing (at Still Ranch); s of Field's Landing, Still Ranch 6 Comment
  UC668132  Sidalcea oregana subsp. spicata Joseph P. Tracy 1937-8-12 15653 Humboldt Snow Camp 1402 Comment
  RSA47144  Silene californica Doris K. Kildale 1925-7-2 900 Humboldt Table Bluff - bluff on coast. Comment
  UC1541416  Silene californica H. E. Parks May 1930 Humboldt near Carlotta; near Carlotta Comment
  UC1198350  Silene campanulata Joseph P. Tracy 1933-7-11 12675 Humboldt Horse Mountain 1432 Comment
  HSC32481  Silene campanulata subsp. glandulosa Bonnie Prange 1974-5-18 Humboldt Off Hwy. 299 at China Slide. Comment
  HSC57950  Silene campanulata subsp. glandulosa G. L. Clifton, Griswold 1979-7-31 11629 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC57999  Silene campanulata subsp. glandulosa G. L. Clifton, Griswold 1979-7-31 11778 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC302999  Silene campanulata subsp. glandulosa Joseph P. Tracy 1926-6-20 7623 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  CAS-BOT-BC389048  Silene laciniata subsp. californica Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC389051  Silene laciniata subsp. californica J. Clausen 1932-9-17 676 Humboldt On a roadbank between Willow Creek and Redwood Creek 304 Comment
  CAS-BOT-BC389059  Silene laciniata subsp. californica H. E. Parks 1930-5-1 0751 Humboldt Vicinity of Hydesville Comment
  CAS-BOT-BC389061  Silene laciniata subsp. californica Lincoln Constance; Alan A. Beetle 1940-5-16 2610 Humboldt Coastal bluffs above Alton Comment
  UC1198792  Sisymbrium altissimum Joseph P. Tracy 1937-5-31 15319 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC90646  Sisyrinchium californicum Gail Newton 1983-6-5 3553 Humboldt Elk River Wildlife Area, Eureka Comment
  JEPS12058  Solanum americanum W. L. Jepson 1936-8-12 17889 Humboldt South Fork Eel River; Philipsville, South Fork Eel River Comment
  HSC79534  Solanum douglasii Kenneth Clark 1980-3-24 540 Humboldt Middle terrace of Dead Man's Gulch, Shelter Cove 76 Comment
  CAS-BOT-BC385867  Solidago canadensis Mrytle Paulson 1918-4-1 s.n. Humboldt Eureka Comment
  HSC76412  Solidago elongata D. K. Imper 1981-7-21 887 Humboldt Near Table Bluff 38 Comment
  JEPS32395  Solidago elongata Lincoln Constance 1934-6-12 867 Humboldt n bank South Fork Eel River (Bull Creek Road, Dyerville); n bank South Fork Eel River, Bull Creek Region, Dyerville Comment
  LA203957  Solidago elongata H. E. Parks; July 1931 - August 1931 1056 Humboldt Trinidad 76 Comment
  SBBG28018  Solidago elongata H. E. Parks -Jul-1931 1056 Humboldt Trinidad 76 Comment
  UC1199322  Solidago elongata Joseph P. Tracy 1935-9-1 14751 Humboldt mouth Larrabee Creek (on Eel River); Eel River, mouth of Larrabee Creek 60 Comment
  UC524127  Solidago elongata Ira L. Wiggins 1932-7-25 5895 Humboldt near McKinleyville Comment
  SEINET6417800 Image available Solidago occidentalis S. K. Harris, C. Wilder 1938-9-7 879 Humboldt Van Dusen River, above Blue Slide Comment
  LA204224  Solidago spathulata S. K. Harris; 1939-9-5 990 Humboldt Samoa Comment
  RSA21022  Solidago spathulata C. B. Wolf 1937-9-12 9332 Humboldt Clam Beach. 8 Comment
  SEINET11800945  Solidago spathulata J. P. Tracy 1948-1 18226 Humboldt Fickle Hill, 6 mi SE of Arcata 610 Comment
  HSC89522  Sonchus asper M. Roantree 1985-6-10 79 Humboldt W side of Trinidad Head Comment
  RSA430519  Sonchus oleraceus Lyman Benson 1929-7-12 1796 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  UC466715  Sorbus scopulina Mrs. Manning 1900-1 Humboldt Mt. Hupa Trinity Summit Comment
  UC1542879  Sparganium emersum var. emersum Harold E. Parks Sep 1934 5246 Humboldt Dry Lagoon Comment
  UC176175  Sparganium erectum subsp. stoloniferum Joseph P. Tracy 1912-10-20 3987 Humboldt Loleta Northern Coast Ranges, Eel Valley (lower Eel Valley) 15 Comment
  HSC94162  Spartina densiflora L. J. Heflin 1984-9-23 43 Humboldt Allen Marsh at Arcata Marsh and Wildlife Sanctuary Comment
  HSC4234  Spergula arvensis D. E. Anderson 1961-9-13 1823 Humboldt Comment
  HSC68008  Spergula arvensis J. P. Smith 1970-6-7 3805 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  HSC43208  Spergularia rubra R. Sutherland 1976-8-18 8 .18876 Humboldt 183 Comment
  RSA0098106  Spergularia rubra James Payne Smith 1976-5-27 8814 Humboldt Arcata, corner of 14th and G Street. Comment
  UC1199028  Spiraea douglasii Joseph P. Tracy 1927-8-22 8350 Humboldt Bald Mountain Northern Coast Ranges (near High Prairie) 1066 Comment
  UCSB26682  Spiraea douglasii Havlik, Neil 1968-8-21 Humboldt south end of Big Lagoon, north of Trinidad 1 Comment
  HSC55605  Spiraea splendens var. splendens Overton, Butler 1979-7-23 9444 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  HSC28141  Spiranthes romanzoffiana J. D. Ackerman 1973-8-29 119 Humboldt Big Lagoon Beach Co. Park, 8 mi. N of Trinidad Comment
  RSA286353  Spiranthes romanzoffiana Robert F. Thorne 1974-7-29 45085 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  CHSC803  Stachys ajugoides var. rigida 1941-5-30 Humboldt Comment
  JEPS63050  Stachys ajugoides var. rigida Joseph P. Tracy 1937-8-12 15652 Humboldt Snow Camp 1402 Comment
  UC577326  Stachys ajugoides var. rigida Joseph P. Tracy 1937-8-12 15652 Humboldt Snow Camp 1402 Comment
  UC577330  Stachys ajugoides var. rigida Joseph P. Tracy 1934-7-18 13455 Humboldt Grouse Mountain North Coast Ranges 1615 Comment
  UCLA71116  Stachys ajugoides var. rigida H. Lewis 1940-7-2 Humboldt Stone Lagoon Comment
  HSC46038  Stachys mexicana Catherine Chin 1978-5-5 55 Humboldt 17.4 mi. S of Ferndale on Mattole Rd. 91 Comment
  HSC75375  Stachys mexicana J. O. Sawyer, M. A. Ericksen 1980-7-7 3575 Humboldt Slopes along Aikens Creek, Adroni Research Area 457 Comment
  HSC58220  Stenanthium occidentale Walter Overton 1979-8-1 12360 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  UC1197796  Stenanthium occidentale Joseph P. Tracy 1947-8-24 17901 Humboldt Box Camp; Trinity Summit 1463 Comment
  HSC6231  Stephanomeria virgata Paul Shields 1955-9-25 Humboldt 17 mi. of Willow Creek Comment
  HSC98578  Stipa lemmonii var. lemmonii Cara Witte 2007-6-1 171 Humboldt Horse Mountain Botanical Area. Along Forest Service Road 6N38. 1502 Comment
  CAS-BOT-BC87619  Streptanthus tortuosus Lincoln Constance; Reed C. Rollins 1942-5-12 2880 Humboldt Klamath-Siskiyou Region. Mouth of Bluff Creek, 6 miles northeast of Weitchpec. 152 Comment
  HSC96249  Streptanthus tortuosus var. tortuosus Kaylea Eickhoff, Cara M. Witte 2005-6-8 4 Humboldt 1.7 mi. S of Hwy. 299 on Titlow Hill Rd. 980 Comment
  UCSB25555  Streptopus amplexifolius Keefe, Joseph 1967-7-9 Humboldt Fern Canyon, south edge of Prairie Creek State Park 3 Comment
  HSC35348  Symphoricarpos albus var. laevigatus A. M. Montalvo, J. D. Ackerman 1975-6-22 481 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36 Comment
  UC1173691  Symphoricarpos albus var. laevigatus Joseph P. Tracy 1939-8-20 16428 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  HSC41258  Symphoricarpos mollis Brad Klipfel 1974-7-23 450 Humboldt Horse Mountain, N from the towers area. Comment
  CHSC68779  Symphyotrichum chilense Vernon H. Oswald 1997-6-5 8539 Humboldt Samoa Dunes Recreation Area at the south tip of the North Spit of Humboldt Bay. 6 Comment
  CAS-BOT-BC99167  Symphyotrichum chilense L. R. Abrams 1927-9-1 12063 Humboldt unspecified Comment
  HSC59669  Symphyotrichum chilense George Kirn 1977-10-1 Humboldt Eureka, open bayfront field 1/2 mi E of Hwy 255 5 Comment
  CAS-BOT-BC98927  Symphyotrichum foliaceum var. parryi Joseph P. Tracy 1917-9-1 4836 Humboldt Murphy Meadow, Bald Mountain 1066 Comment
  JEPS40779  Symphyotrichum subspicatum W. L. Jepson 1936-8-17 17913 Humboldt 2 mi s, near Still's Ranch Field's Landing Comment
  UC673095  Symphyotrichum subspicatum Joseph P. Tracy 1940-9-26 16728 Humboldt Eureka 9 Comment
  CDA5592  Symphytum asperum T. C. Fuller 1968-7-31 17449 b Humboldt 2 miles north of Arcata, Arcata Bottoms. 0 Comment
  RSA46713  Synthyris reniformis Doris K. Kildale 1926-3-20 1538 Humboldt Big Lagoon. Comment
  HSC100683  Synthyris reniformis Carl C. Marshall Apr 1886 188 Humboldt Near North Fork of Mad River. Comment
  UC582541  Synthyris reniformis Joseph P. Tracy 1936-2-28 14771 Humboldt Trinidad, on coast Trinidad Comment
  SEINET3194865 Image available Taeniatherum caput-medusae Joseph P. Tracy 1950-1 18772 Humboldt Ranges between Garberville and Harris. 610 Comment
  CAS-BOT-BC376720  Tanacetum bipinnatum Tom Craig 1941-6-29 s.n. Humboldt Samoa Comment
  HSC6252  Tanacetum bipinnatum D. B. Bader 1963-5-1 2 Humboldt Second of Clam Beach Lagoons, W of Hwy. 101, along R.R. tracks Comment
  HSC78985  Tanacetum bipinnatum L. P. Janeway 1984-5-16 801 Humboldt N Spit of Humboldt Bay, on the W side of Samoa Road ca. 1/4 mi. NW of the boat ramp 5 Comment
  UCD136744  Tanacetum bipinnatum Roman Gankin 1965-8-6 553 Humboldt west of road; 1.3 miles south of Samoa, Samoa Peninsula. Comment
  RSA18773  Tanacetum camphoratum P. A. Munz 1954-7-25 19869 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  SEINET4016798  Tanacetum camphoratum O. M. Clark 1932-1 663 Humboldt North Eureka. Comment
  HSC34807  Taraxacum officinale Lon Hall 1975-4-4 293 Humboldt Arcata. In front of 1735 J St. 15 Comment
  HSC97580  Taraxacum officinale C. Witte 2007-5-18 37 Humboldt Along National Forest 1. Approximately 1 mile north of intersection with 5N09. 1456 Comment
  UC1196936  Taraxia ovata Joseph P. Tracy 1942-5-16 17343 Humboldt w side of river near Garberville; S. Fork of Eel River 152 Comment
  HSC49986  Tauschia glauca M. Andre' Baker 1979-6-7 787 Humboldt On N bank of the road to Snow Mt. 610 Comment
  UC162623  Tauschia kelloggii Joseph P. Tracy 1911-7-4 3289 Humboldt w side of Trinity River near Willow Creek; Northern Coast Ranges, w side of Trinity River, Willow Creek 182 Comment
  POM299136  Taxus brevifolia Joseph P. Tracy 1927-3-27 7865 Humboldt Willow Creek Canyon 762 Comment
  UC54785  Taxus brevifolia P. E. Goddard Jul 1 1901-Aug 1 1901 127 Humboldt Mud Springs Trinity Summit Trail, Mud Springs Comment
  UCSB24358  Tellima grandiflora Tracy, Joseph 1935-7-23 Humboldt Trinity Summit; Lower End of Brett Hole 1584 Comment
  RSA168931  Thalictrum polycarpum Joseph P. Tracy 1950-7-6 18986 Humboldt Burr Valley, NW slope of Buck Mtn 1067 Comment
  UC667955  Thelypteris nevadensis Joseph P. Tracy 1937-7-25 15556 Humboldt ne of Hawkins Bar (Happy Camp Mt.); Trinity Summit Range 1280 Comment
  UC183547  Thlaspi californicum Joseph P. Tracy 1913-5-4 4043 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC1299  Thuja plicata Francis Winter 1960-5-6 Humboldt 1.0 mi. W of Blue Lake, Hwy. 299 Comment
  HSC91618  Thuja plicata E. Mackey 1986-10-7 Humboldt Patrick's Point State Park along Patrick's Point Drive 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
  UC484081  Thuja plicata Carl B. Wolf 1930-10-25 1764 Humboldt 9 m above Blue Lake (along road to Willow Creek (Lord Ellis Road)) 243 Comment
  RSA134612  Thuja plicata 1959-10-25 23970 Humboldt 6.9 mi SW from Ferndale on old coast road to Capetown. 564 Comment
  SEINET10613416  Thuja plicata Harold E. Parks 1932-7-25 Parks 1139 Humboldt Camp 21, Hammond Lumber Company, Trinidad. Small trees in bogs. Host of Keithia thujina, a fungus new to California. Herbarium of the University of California Comment
  CAS-BOT-BC88318  Thysanocarpus curvipes Doris K. Kildale 1926-4-25 1803 Humboldt Willow Creek Flat. 152 Comment
  CAS-BOT-BC436936  Tiarella trifoliata var. unifoliata Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC55345  Tiarella trifoliata var. unifoliata Griswold, Butler 1979-7-12 7211 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC902074  Tiarella trifoliata var. unifoliata Joseph P. Tracy 1949-8-4 18423 Humboldt Mud Springs Trinity Summit (Trinity Summit); , Mud Springs 1341 Comment
  UCR64482  Tiarella trifoliata var. unifoliata Lyman Benson 1928-7-11 454 Humboldt Dyerville, Bull Creek, S. Fork Eel River, Bull Creek Flat. 120 Comment
  RSA304700  Tiarella trifoliata var. unifoliata S. Ganley 1971-5-30 1156 Humboldt Ave of Giants; Humboldt State Park. 152 Comment
  UC11935  Tiarella trifoliata var. unifoliata J. Burtt Davy 1899-6-13 5513 Humboldt Redwoods near Camp Grant (along the Eel River); along the Eel River Comment
  HSC103111  Tofieldia glutinosa M. Mesler 2010-7-15 834 Humboldt Near Blake Mtn, FS rd N01 off rd 4N12 Comment
  UC302171  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1925-7-5 7181 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC1197832  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1932-7-17 10672 Humboldt Trinity Summit; ridges E of Corral Prarie 1828 Comment
  CAS-BOT-BC447609  Tolmiea menziesii Volney Rattan 1883-6-1 s.n. Humboldt Humboldt County Comment
  UC1197331  Torilis arvensis subsp. arvensis Joseph P. Tracy 1940-8-3 16692 Humboldt Cathey Ranch near Miranda 30 Comment
  JEPS14238  Torilis nodosa Joseph P. Tracy 1927-6-18 8183 Humboldt near Petrolia (Hills between Petolia and Ocean) 152 Comment
  SEINET3071157 Image available Tracyina rostrata J. P. Tracy 1916-6-20 4735 Humboldt Alder Point Comment
  CHSC32806  Tragopogon porrifolius Lora L. Anderson 1981-4-26 5 Humboldt Ca. 0.5 mi w of Mad River, 200 yds n of 200/299 separation bridge, 8 mi ne of Arcata. Along roadside. 30 Comment
  UC1239715  Trichostema laxum Joseph P. Tracy 1921-10-9 5968 Humboldt Blue Lake, on gravel bar of Mad River Northern Coast Ranges 30 Comment
  UC484155  Trichostema laxum E. R. Johnson Aug 1929 Humboldt along the Eel River Comment
  UC175495  Trichostema oblongum Joseph P. Tracy 1912-7-31 3945 Humboldt Buck Mountain, near the summit Northern Coast Ranges 1676 Comment
  HSC100081  Trientalis latifolia Jimerson, J. Pageau 1979-6-22 607 Humboldt Near Bee Mtn., close to the town of Orleans 655 Comment
  HSC17938  Trientalis latifolia Frances Oldridge 1946-1 Humboldt Freshwater Comment
  BLMAR717  Trifolium albopurpureum Jennifer Wheeler 2011-5-20 717 Humboldt King range, near strawberry rock 7 Comment
  UC1197245  Trifolium albopurpureum var. dichotomum J. P. Tracy 1901-4-24 1039 Humboldt vicinity Eureka 0 Comment
  UC1223386  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1936-5-29 14819 Humboldt French Camp Comment
  HSC71212  Trifolium arvense Thomas W. Nelson, Jane P. Nelson 1979-5-25 4697 Humboldt Willow Creek Comment
  UC1103436  Trifolium barbigerum J. P. Tracy 1901-4-24 1037 Humboldt immediate vicinity Eureka 0 Comment
  HSC100528  Trifolium bifidum Carl C. Marshall Jun 1885 33 Humboldt Bear River. Comment
  UC160938  Trifolium bifidum var. decipiens J. P. Tracy 1900-5-28 812 Humboldt immediate vicinity Eureka 0 Comment
  UC16434  Trifolium bifidum var. decipiens J. Burtt Davy 1899-6-15 5526 Humboldt Scotia Comment
  RSA163848  Trifolium campestre Joseph P. Tracy 1938-6-7 15857 Humboldt Canyon Creek, 5 miles southeast of Korbel. Comment
  UC1223485  Trifolium cyathiferum Joseph P. Tracy 1933-7-25 12850 Humboldt near Clear Lake; Grouse Mtn. 1524 Comment
  HSC39836  Trifolium dubium Peter Sorensen 1976-6-11 Humboldt Woodley Island Comment
  UC16504  Trifolium dubium Joseph Burtt Davy and Walter C. Blasdale 1899-6-15 5529 Humboldt near Scotia Comment
  NY33709  Trifolium elmeri V. K. Chesnut 1888-7-25 s.n. Humboldt Comment
  HSC97569  Trifolium eriocephalum subsp. eriocephalum Cara Witte 2007-6-7 225 Humboldt Along National Forest 1 on Kinsey Ridge. 1 mile south of intersection with 4N06. 1263 Comment
  UC1223464  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1949-8-4 18415 Humboldt toward Trinity Summit (Mud Springs, on rd from Hoopa) 1341 Comment
  HSC15123  Trifolium fucatum R. A. Rasp 1964-5-17 38 Humboldt 1 mi. S of Arcata beside Hwy. 101 Comment
  JEPS65891  Trifolium fucatum Joseph P. Tracy 1923-5-13 6203 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  OBI4982  Trifolium fucatum Joseph P. Tracy 1950-6-8 18747 Humboldt Cape Ridge. One mi E of Cape Mendocino 152 Comment
  RSA168897  Trifolium fucatum var. fucatum Joseph P. Tracy 1938-6-17 15950 Humboldt Cape Mendocino, near ocean shore, south of point of the Cape. Comment
  SEINET12147991  Trifolium fucatum var. virescens J. P. Tracy 1938-1 15950 Humboldt S side of Cape Ridge. Cape Mendocino, s of point of the cape 30 Comment
  UC1152150  Trifolium hybridum Joseph P. Tracy 1938-6-15 15926 Humboldt 2 mi s town (Field's Landing, Salmon Creek Flats, s end of bay); Humboldt Bay 6 Comment
  HSC100251  Trifolium incarnatum J. P. Smith, & J. O. Sawyer 2010-5-2 12808 Humboldt Along Hwy. 96, N of Orleans 140 Comment
  HSC98880  Trifolium longipes subsp. hansenii Cara Witte 2007-6-1 166 Humboldt Horse Mountain Botanical Area. Along Forest Service 6N38. 1355 Comment
  HSC15234  Trifolium longipes subsp. oreganum D. E. Anderson 1965-6-1 3770 Humboldt On ridge along Friday Hill Rd., about 2 mi. from its junction with Titlow Hill Rd. 1159 Comment
  UC1602107  Trifolium microcephalum Joseph P. Tracy 1922-4-30 6022 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1197547  Trifolium microdon Joseph P. Tracy 1925-8-9 7225 Humboldt near Miranda (Salmon Creek); Northern Coast Ranges 91 Comment
  HSC99477  Trifolium repens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 135 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UCD109372  Trifolium repens Tofsrud 1948-9-1 s.n. Humboldt 3 mi. S. of Scotia. Comment
  UC16781  Trifolium variegatum var. melananthum Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5342 Humboldt Harris Comment
  JEPS4144  Trifolium variegatum var. variegatum Joseph P. Tracy 1929-5-5 8570 Humboldt Miranda Northern Coast Ranges, South Fork Eel River 121 Comment
  UC165592  Trifolium variegatum var. variegatum Harley P. Chandler May, 1901 1169 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC1223540  Trifolium variegatum var. variegatum Joseph P. Tracy 1939-4-29 16238 Humboldt mouth of Slate Creek; Klamath River Comment
  UC495679  Trifolium variegatum var. variegatum Joseph P. Tracy 1929-5-5 8572 Humboldt along Sout Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  HSC96949  Trifolium willdenovii Elizabeth Kimbrough, Whitney Meier 2007-6-4 1 Humboldt Cold Springs Camp, 7.4 mi. S of Hwy. 299 off FS Rd. NF1 on FS Rd. 5N27 1390 Comment
  UCD109861  Trifolium willdenovii A. H. Murphy 1947-5-15 s.n. Humboldt In Klamath weed field, 3 miles south of Blocksburg. Comment
  UCD109909  Trifolium wormskioldii Linda M. Barker 1976-6-1 1547 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC1223518  Trifolium wormskioldii Joseph P. Tracy 1938-7-11 16047 Humboldt Samoa Sand Dunes Comment
  HSC36261  Triglochin maritima John Rehling 1974-8-20 23 Humboldt Big Lagoon Bog Comment
  UCD139896  Trillium albidum R. N. Raynor 1935-3-13 s.n. Humboldt Fort Seward. Comment
  SEINET12050371  Trillium albidum F. H. Utech 1988-1 88 -286 Humboldt along CA 36 from Bridgeville enroute to Dinsmore, Mile Marker 42.00, above Van Duzen River 800 Comment
  UC1364374  Trillium albidum J. D. Freeman with R. F. Freeman 1967-5-7 581 Humboldt just n. of Carlotta (just w. of CA Hwy. 36) Comment
  UC176189  Trillium ovatum Joseph P. Tracy 1913-3-9 4019 Humboldt near Hydesville Hydesville; Northern Coast Region 60 Comment
  SEINET5722160 Image available Trillium ovatum David G. Forbes 1966-1 436 Humboldt 0.5 mile south of Weott on the Highway of the Giants.; Weott 30 Comment
  UC198870  Triodanis biflora Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  UC213508  Triodanis biflora J. P. Tracy 1919-4-27 5131 Humboldt sand hills of Ocean Beach at Samoa (opp. Eureka); Ocean Beach Comment
  UC34823  Triodanis perfoliata Harley P. Chandler June, 1901 1514 Humboldt Klamath River; North Coast Ranges, Klamath River 426 Comment
  JEPS10700  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1932-5-1 9888 Humboldt vicinity Garberville 121 Comment
  JEPS2674 Image available Triphysaria eriantha subsp. eriantha Jos. P. Tracy 1901-5-18 2035 Humboldt Sandhills Humboldt Bay, Eureka; Eureka, Humboldt Bay Comment
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Oct 16 2007
  UC1222798  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1950-6-18 18765 Humboldt 1 mi w Petrolia (hills between town and Ocean); hills between Petrolia and Ocean Comment
  HSC40372  Triphysaria pusilla Linda M. Barker 1976-4-30 1425 Humboldt 3 mi. W of Arcata Comment
  HSC41654  Triphysaria pusilla J. O. Sawyer 1977-4-23 3044 Humboldt Road separator between Hwy. 101 and parking area at scenic overlook N of McKinleyville Comment
  SBBG68601  Triphysaria versicolor subsp. faucibarbata S. W. Hutchinson -Apr-1927 106 Humboldt Humboldt County [no specific locality] 30 Comment
  HSC32517  Trisetum cernuum D. E. Anderson, S. Dowty, T. Nelson 1972-6-17 5711 Humboldt McKeown Ranch, N of Dinsmore Comment
  SEINET11682986  Trisetum cernuum K. S. Erdman 1970-1 4814 Humboldt Fern Canyon at mouth of Home Creek, Prairie Creek SP in Redwood National Park Comment
  CAS-BOT-BC519141  Triteleia hyacinthina Tom Craig 1941-7-2 s.n. Humboldt Near Yager Comment
  HSC3103  Triteleia laxa Greg Bos 1965-5-15 273 Humboldt Berry Summit near Hwy. 299 793 Comment
  SEINET200771  Triteleia laxa Joseph P. Tracy 1947-6-8 17704 Humboldt Carlotta; Open flat by old Strong's District School House 5 miles east of town 46 Comment
  HSC49358  Tsuga heterophylla Thomas W. Nelson, Jane P. Nelson 1979-9-10 5065 Humboldt Old logging rd. S of Lundbar Hills section of Eureka 49 Comment
  SBBG25959  Tsuga heterophylla E. R. Blakley 1966-8-17 6798 Humboldt Patrick's Pt, 5 mi N of Trinidad 60 Comment
  UC1174867  Tsuga heterophylla P. C. Everett and E. K. Balls 1959-10-25 23963 Humboldt 22 mi w from Willow Creek (along U. S. Hwy. 299 to Arcata); U. S. Hwy. 299 579 Comment
  HSC49911  Umbellularia californica Maralyn O'Meara 1973-2-9 123 Humboldt McKinleyville, N side of Mad River along N Bank Rd., 0.5 mi. E of Hwy. 101 Comment
  UCD111533  Urtica dioica subsp. gracilis Linda M. Barker 1976-9-3 1696 Humboldt 3 miles west of Arcata. Comment
  UC672857  Urtica dioica subsp. gracilis Joseph P. Tracy 1927-3-6 7837 Humboldt Elk River 30 Comment
  UCD170579  Urtica dioica subsp. gracilis Gordon Leppig 1998-4-13 736 Humboldt Arcata, Anvick Rd. 12 Comment
  UC672856  Urtica dioica subsp. holosericea Joseph P. Tracy 1937-7-19 15448 Humboldt Blue Slide on Van Duzen River Blue Slide; Van Duzen River, Blue Slide 91 Comment
  UC229829  Urtica urens Joseph P. Tracy 1922-7-16 6103 Humboldt Northern Coast Ranges, at Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  RSA54143  Utricularia vulgaris subsp. macrorhiza H. M. Pollard 1946-8-13 s.n. Humboldt Pond near Harley Place. Orleans region. Comment
  CAS-BOT-BC193964  Vaccinium cespitosum Harley P. Chandler 1901-5-1 1181 Humboldt Humboldt Bay 30 Comment
  HSC98063  Vaccinium membranaceum Cara Witte 2007-7-12 524 Humboldt Forest Service Road 5N10C. Approximately 1 mile south for intersection with Ammon Ridge Road. 1252 Comment
  HSC91895  Vaccinium ovatum E. Mackey 1986-10-7 Humboldt Patricks Point State Park, Palmer's Point Rd. Comment
  RSA503177  Vaccinium ovatum Gary D. Wallace 1971-7-28 947 Humboldt King Range, ca. 4 mi. SE of Shelter Cove along King Range Rd. 3.8 mi. S of jct. with Shelter Cove Rd. Comment
  RSA697564  Vaccinium ovatum J. R. Bruff 1937-8-17 928 Humboldt Richardson Grove. Comment
  UC726577  Vaccinium ovatum A. A. Heller 1937-6-12 15917 Humboldt 3 mi n Trinidad (Bishop Pine Lodge) 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
  POM118490  Vaccinium parvifolium Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  UC463032  Vaccinium parvifolium E. B. Copeland 1931-8-17 Humboldt Below Dinsmore; Van Duzen River Comment
  JEPS66684  Vaccinium uliginosum subsp. occidentale Joseph P. Tracy 1935-7-26 14262 Humboldt Water Dogs Lake Trinity Summit 1828 Comment
  UC198659  Valeriana sitchensis subsp. scouleri Ethel Tracy 1917-6-12 Humboldt along Eel River from South Fork to Scotia (Scotia Bluff); Northern Coast Ranges, Eel River 60 Comment
  JEPS52976  Vancouveria W. L. Jepson 1932-8-1 16471 Humboldt Bull Creek; deep woods at Geant Tree 121 Comment
  HSC99463  Vancouveria hexandra K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 117 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1541238  Vancouveria hexandra Harold E. Parks May 1933 4288 Humboldt near Trinidad; near Trinidad Comment
  HSC3384  Vancouveria planipetala William J. Ferlatte, B. D. Rogers 1966-6-8 2089 Humboldt 2 mi. W of Forest Glen, Granite Canyon. Comment
  HSC76284  Vancouveria planipetala Teresa Prendusi 1981-7-9 189 Humboldt Near Cedar Camp. 1268 Comment
  HSC99651  Vancouveria planipetala Jimerson, J. Pageau 1979-6-12 530 Humboldt Near Hopkins Butte, close to the town of Orleans 1036 Comment
  UC535767  Vancouveria planipetala Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  SJSU924  Vancouveria planipetala J. W. Tilden 1946-7-20 1019 Humboldt Bluff Cr c. 1.5 mi above its junction with Klamath R Comment
  CAS-BOT-BC528851  Veratrum californicum Joseph P. Tracy 1934-6-21 13244 Humboldt Local in wet place at Still Ranch 2 mi. S of Fields Landing (exterminated there about 1937) 6 Comment
  UC1222526  Veratrum californicum var. californicum Joseph P. Tracy 1950-9-2 19347 Humboldt 2 mi s Field's Landing town (at Still Ranch) 6 Comment
  UC429307  Veratrum californicum var. californicum P. E. Goddard 1906-6 690 Humboldt Lassick Pk. Comment
  UC153968  Veratrum californicum var. californicum Joseph P. Tracy 1910-7-24 3158 Humboldt 1.5 mi s Field's Landing; Humboldt Bay Region 0 Comment
  UC1173645  Veratrum insolitum Joseph P. Tracy 1929-7-4 8636 Humboldt French Camp Ridge 1066 Comment
  HSC74416  Veratrum viride Gail Newton 1980-8-10 2037 Humboldt Near Blake Mtn. 1707 Comment
  JEPS11174  Verbascum blattaria Joseph P. Tracy 1937-6-26 15366 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  JEPS11185  Verbascum blattaria Lincoln Constance 1934-5-26 658 Humboldt South Fork of Eel River s end Dyerville Bridge (Bull Creek Region); South Fork Eel River, Bull Creek Region 45 Comment
  HSC21176  Verbascum blattaria David Adams 1960-8-20 Humboldt Whitlow (Sequoia) 60 Comment
  UC168982  Verbascum blattaria Harley P. Chandler 1901-6-10 1422 Humboldt Klamath River Nature's Rest; North Coast Ranges, , Nature's Rest 304 Comment
  HSC40885  Verbascum thapsus Thomas W. Nelson, Jane Nelson 1976-6-22 2868 Humboldt On SW-facing slope at Goat Mtn. lookout 1666 Comment
  UC25158  Verbena lasiostachys var. lasiostachys C. C. Marshall 1888-1 Humboldt Comment
  HSC23729  Veronica americana Tim Baroni 1971-7-6 128 Humboldt 15 mi. S of Ferndale on Mattole Rd. Comment
  HSC24393  Veronica americana J. O. Sawyer 1970-6-24 2251 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  HSC21186  Veronica americana R. D. Modafferi 1965-5-1 64 Humboldt 2.3 mi. N of Trinidad on Trinity St. 0 Comment
  UC1011936  Veronica americana F. W. Pennell and J. P. Tracy 1940-7-7 26088 Humboldt headwaters of Willow Creek, Route 299 Willow Creek 762 Comment
  UC176046  Veronica peregrina subsp. xalapensis Joseph P. Tracy 1913-6-14 4136 Humboldt in Valley of Van Duzen River (opposite Buck Mountain, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  SEINET3825239 Image available Veronica scutellata Malcolm A. Nobs, S. Galen Smith 1949-8-3 1190 Humboldt Southern outskirts of Eureka Comment
  HSC102112  Veronica serpyllifolia subsp. humifusa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1016 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC15270  Vicia gigantea W. F. Nickel 1965-5-15 Humboldt 1/4 mi. E of Arcata on road to Arcata Reservoir Comment
  UC709406  Vicia sativa subsp. nigra Joseph P. Tracy 1934-6-23 13248 Humboldt Arcata Bottom 15 Comment
  HSC38931  Vicia sativa subsp. nigra Linda M. Barker 1976-5-13 1481 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  UC604647  Vinca major Joseph P. Tracy 1938-4-5 15703 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  HSC12434  Vinca major Gary J. Stebbins 1970-2-18 8 Humboldt Growing in waste lot within city limits of Arcata. 61 Comment
  UC1198446  Viola cuneata Joseph P. Tracy 1927-6-12 8214 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC56145  Viola glabella G. L. Clifton, Griswold 1979-8-1 11974 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC32135  Viola hallii D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5614 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC33151  Viola hallii Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1245 Humboldt Horse Mtn. area, W of microwave tower 1220 Comment
  HSC39528  Viola hallii Thomas W. Nelson, Jane P. Nelson 1976-6-15 2713 Humboldt Along old trail from look out to Blocksburg 1585 Comment
  HSC82031  Viola hallii Thomas W. Nelson, James Nelson 1980-6-10 5399 Humboldt Along Swayback Ridge 4-wheel drive road, 1.25 mi. S of junction with Forest Service road. 1494 Comment
  UC127323  Viola lobata subsp. integrifolia Mrs. M. H. Manning 1901-7-1 35 Humboldt Trinity Summit Comment
  UC1761724  Viola macloskeyi W. K. Parks Jul 1933 6239 Humboldt South Fork Mt. Comment
  HSC94129  Viola odorata Gordon Leppig, Sylvia Leppig 2000-12-23 1525 Humboldt SW corner of 10th and I St. 6 Comment
  JEPS50263  Viola palustris Joseph P. Tracy 1923-5-31 6242 Humboldt Northern Coast Ranges, Eurkea Eurkea; Northern Coast Ranges, Eurkea 0 Comment
  SEINET200801 Image available Viola praemorsa J. P. Tracy 1922-5-29 6067 Humboldt Head of South Yager Creek Comment
  UC183611  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1913-6-19 4204 Humboldt in Valley of Van Duzen River (opposite Buck Mountain); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  HSC95737  Viola sempervirens Steven Lee 2004-2-18 1 Humboldt Arcata Community Forest, Jolly Giant Creek; 5-20 ft. from water's edge Comment
  HSC34806  Viola sempervirens Lon Hall 1975-3-27 301 Humboldt Near Shelter Cove, above Bear Creek 366 Comment
  RSA46480  Viola sempervirens Doris K. Kildale 1927-3-19 2901 Humboldt Luffenholtz Creek. Comment
  SEINET200824 Image available Viola sheltonii J. P. Tracy 1913-6-17 4187 Humboldt Buck Mountain near the summit Comment
  CAS-BOT-BC203051  Vitis californica Doris K. Kildale 1926-7-25 2431 Humboldt Briceland Bridge 1/2 mi. west of Garberville Comment
  UC1197980  Vitis californica Joseph P. Tracy 1933-7-3 12630 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC1197981  Vitis californica Joseph P. Tracy 1926-9-6 7797 Humboldt Trinity River Valley Northern Coast Ranges (near the South Fork) 182 Comment
  HSC37933  Vulpia bromoides Peter Sorensen 1976-6-14 Humboldt N Spit Comment
  UC1145201  Vulpia bromoides Joseph P. Tracy 1948-6-10 18065 Humboldt Trinidad 3 Comment
  RSA183526  Vulpia microstachys D. E. Anderson 1965-5-8 3648 Humboldt 3 miles N of Willow Creek along road on E side of Trinity River. Comment
  UC525652  Vulpia microstachys var. pauciflora Joseph P. Tracy 1926-5-2 7439 Humboldt near The South Fork (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  SEINET251379 Image available Vulpia myuros var. hirsuta Harley P. Chandler 1186 Humboldt Humboldt Bay Comment
  BLMAR79  Whipplea modesta Jennifter Anthony-Wheeler 1994-6-2 79 Humboldt IAQUA, growing on logging rd in shaded coniferous forest 853 Comment
  HSC102193  Wyethia angustifolia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1107 Humboldt Andy's Camp 1564 Comment
  HSC98077  Wyethia angustifolia Cara Witte 2007-7-11 485 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1396 Comment
  JEPS32069  Wyethia angustifolia Joseph P. Tracy 1936-6-17 14947 Humboldt nw slope Buck Mountain 762 Comment
  CAS-BOT-BC326985  Wyethia longicaulis W. L. Colwell 1957-8-6 52 Humboldt Eleven miles northeast of Bridgeville near Six Rivers National Forest 1295 Comment
  POM192569  Wyethia longicaulis H. E. Parks 1930-05 0740 Humboldt Laribee Valley Comment
  UC1096426  Wyethia longicaulis W. L. Colwell 1957-8-6 52 Humboldt 11 mi northeast of Bridgeville near Six Rivers National Forest Comment
  SEINET11799554  Wyethia longicaulis J. P. Tracy 1950-1 18942 Humboldt near Clear Lake where Friday Ridge Rd comes to top of Grouse Mountain Ridge Comment
  BLMAR442  Xanthium spinosum Jennifer Anthony-Wheeler 2008-10-1 442 Humboldt Humboldt County, growing on Collenberg dairy, Mad River Road 7 Comment
  RSA246843  Xerophyllum tenax Robert F. Thorne, Percy C. Everett 1965-8-5 35144 Humboldt King Mountain 1220 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
  HSC81491  Zeltnera muehlenbergii Thomas W. Nelson, Jane P. Nelson 1980-8-12 6239 Humboldt Logging roads S of Lundbar Hills 61 Comment
  HSC15760  Zigadenus fremontii R. Spellenberg 1965-6-14 1127 Humboldt Kneeland Prairie, at Kneeland Airport 6 mi. SE of Kneeland Comment
  CAS-BOT-BC532734  Zigadenus micranthus H. C. Cantelow 1936-5-17 1355 Humboldt 11 miles east of Orick, grade to Yreka Comment
  HSC95187  Zostera japonica Gordon Leppig 2002-7-8 1782 Humboldt Indian Island, SW shore 0 Comment



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