Search Results — 2000 specimen records retrieved (1348 records with coordinates)
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Results for search: County=HUMBOLDT; Source=All;   

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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)
 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/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
  CAS-BOT-BC73483  Abies magnifica Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mts. 1828 Comment
  UC55499  Abronia latifolia J. P. Tracy 1901-8-7 1271 Humboldt Sand Hills of Ocean Beach Samoa, Opp Eureka Comment
  UCD109781  Abronia latifolia Linda M. Barker 1976-5-13 1490 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCD170784  Abronia latifolia Gordon Leppig; Sylvia Leppig and Kai Neander 1998-5-6 746 Humboldt Dry Lagoon State Park, between ocean and Dry Lagoon. 2 Comment
  UC524123  Abronia latifolia Ira L. Wiggins 1932-7-19 5888 Humboldt 8 mi n Arcata (Sand dunes near Clam Beach) Comment
  UCD150384  Abronia umbellata var. breviflora William Anderson and H. Mc. 1964-8-6 s.n. Humboldt Little River. Comment
  CAS-BOT-BC436986  Acaena novae-zelandiae D. W. Cooper 1967-6-30 s.n. Humboldt On ridge just southeast of Forest Service Nursery, ca. 2 miles southeast of Crannell and ca. 4 miles east of U.S. Highway 101 Comment
  SBBG34169  Acaena novae-zelandiae D. W. Cooper 1966-10-10 Humboldt ridge just SE of USFS Nursery, ca. 2 mi SE of Crannell and ca. 4 mi E of US Hwy 101 Comment
  CAS-BOT-BC330546  Acer circinatum Joseph P. Tracy 1909-6-13 2997 Humboldt Mad River near Blue Lake 30 Comment
  CAS-BOT-BC330548  Acer circinatum H. E. McMinn 1922-8-5 355 Humboldt Near Van Duzen River Comment
  HSC2783  Acer circinatum L. J. Coombes 1964-5-16 33 Humboldt Camp Bowers, 3 mi. SE of Blue Lake 1524 Comment
  SEINET3026058 Image available Acer circinatum Joseph P. Tracy 1942-7-26 17294 .5 Humboldt Valley of SOuth Yager Creek 610 Comment
Read comments May 1 2015
  SEINET7892760  Acer circinatum W. D. Billings 1940-6-25 1349 Humboldt Cedar Creek, 35 miles east of Arcata Comment
  UC170174  Acer glabrum var. glabrum Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5780 Humboldt Trinity Summit Comment
  UC668173  Acer macrophyllum Joseph P. Tracy 1933-4-2 10955 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  UCD117014  Acer macrophyllum David G. Forbes 1966-4-4 6438 Humboldt 0.5 mile south of Weott on Avenue of the Giants. 30 Comment
  CAS-BOT-BC331586  Acer macrophyllum Doris K. Kildale 1926-9-5 2636 Humboldt Lasseck's Peaks, on trail between Covel[?] Camp and Red Rock 1676 Comment
  HSC4548  Achillea millefolium R. I. Bonn 1965-4-3 15 Humboldt Four miles West of Arcata on Lanphere Rd. Comment
  HSC58006  Achillea millefolium G. L. Clifton, Griswold 1979-7-31 11793 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  RSA298149  Achillea millefolium James Payne Smith 1973-5-26 6797 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC581787  Achillea millefolium Joseph P. Tracy 1933-5-20 12230 Humboldt s of point of the cape near ocean shore Cape Mendocino 3 Comment
  RSA416222  Achillea millefolium J. P. Smith, Thomas W. Nelson 1977-6-30 9221 Humboldt Samoa Peninsula just east of the drag strip. Comment
  RSA254748  Achillea millefolium var. arenicola Thomas W. Nelson 1971-11-11 597 Humboldt Growing on the sand dunes at the foot of Murray Rd. McKinleyville Comment
  CAS-BOT-BC400024  Achlys triphylla Mrs. H. E. Wilder 1924-4-26 s.n. Humboldt Carlotta Comment
  CHSC19744  Achlys triphylla D. E. Anderson 1965-5-1 3575 Humboldt 4--5 miles west of jct. Bluff Creek Rd. and Hw. 96, along Bluff Cr. Rd. Comment
  HSC31126  Achlys triphylla J. O. Sawyer 1970-6-24 2261 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  CAS-BOT-BC400023  Achlys triphylla Wayne Roderick 1967-7-22 s.n. Humboldt Ca. 5 miles e. of Carlotta 45 Comment
  HSC3330  Achlys triphylla Francis Winter 1960-4-23 Humboldt 1 mi. S of Simpson Creek, Korbel-Maple Creek Rd. 213 Comment
  HSC34876  Achlys triphylla Thomas W. Nelson 1975-5-5 1778 Humboldt Beside Hwy. 101, 4 mi. S of the Salmon Creek bridge Comment
  SEINET5585534 Image available Achnatherum lemmonii Joseph P. Tracy 1950-1 18787 Humboldt Mail Ridge, north of Harris 7 miles 1036 Comment
  UC526755  Achnatherum lemmonii Joseph P. Tracy 1930-7-23 9125 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  UC526756  Achnatherum lemmonii Joseph P. Tracy 1933-7-25 12849 Humboldt Grouse Mountain 1524 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
  SEINET201031  Achnatherum occidentale subsp. californicum J. P. Tracy 1932-7-17 10667 Humboldt Trinity Summit ridges E of Corral Prairie; Klamath Mtns 1829 Comment
  SEINET201042  Achnatherum occidentale subsp. californicum J. P. Tracy 1932-7-12 10446 Humboldt Trinity Summit; Corral Prairie 1524 Comment
  SEINET11854795  Achyrachaena mollis J. P. Tracy 1948-1 18054 Humboldt near Harris Comment
  HSC98308  Acmispon micranthus D. B. Bader 1963-3-1 22 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101 Comment
  HSC98330  Acmispon wrangelianus A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek Jct., 100 yards W of Lindsey Creek on N bank. Comment
  HSC53838  Aconogonon phytolaccifolium Griswold, Butler 1979-7-10 6289 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC56125  Actaea rubra G. L. Clifton, Griswold 1979-8-1 11914 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  JEPS79802  Actaea rubra Joseph P. Tracy 1932-7-17 10690 Humboldt Devil's Hole Klamath Mts., Trinity Summit (head) 1828 Comment
  UC1196186  Actaea rubra Joseph P. Tracy 1901-7-31 1230 Humboldt near Hydesville; Northern Coast Region 60 Comment
  BLMAR360  Actaea rubra Clara Sander 2003-7-7 360 Humboldt King range, Roadside 18 Comment
  HSC73574  Adenocaulon bicolor Gail Newton 1980-7-14 1511 Humboldt Near Deadman Ridge 1097 Comment
  HSC76345  Adenocaulon bicolor Denis Kearns 1981-7-23 383 Humboldt Near Whiteys Peak 732 Comment
  SD73189  Adenocaulon bicolor Darley F. Howe 1969-6-4 Humboldt 14.6 miles east of Alton on #36 89 Comment
  CAS-BOT-BC29864  Adenocaulon bicolor Carl B. Wolf 1927-8-21 766 Humboldt In Stephen's Grove Comment
  CAS-BOT-BC62291  Adiantum aleuticum Carl B. Wolf 1927-8-28 1170 Humboldt On grade 9 mi. from Willow Creek, Lord Ellis Road to Blue Lake Comment
  HSC44330  Adiantum aleuticum Brad Klipfel 1975-6-17 679 Humboldt Horse Mtn. Comment
  UC197911  Adiantum jordanii Joseph P. Tracy 1914-5-14 4427 Humboldt Fort Seward; Northern Coast Ranges 121 Comment
  CDA35538  Aesculus californica R. Spandoni & J. R. Hunt 1980-9-3 Humboldt Petrolia. 0 Comment
  HSC98730  Agastache urticifolia Cara Witte 2007-7-20 553 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  CAS-BOT-BC30381  Ageratina occidentalis Doris K. Kildale 1925-7-19 1051 Humboldt Bridgeville, on Van Duzen River 228 Comment
  POM54273  Ageratina occidentalis P. E. Goddard 1906-06 638 Humboldt North fork of Eel River Comment
  JEPS36371  Agoseris apargioides William S. Cooper 1925-7-29 114 Humboldt Samoa Comment
  UC1239511  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1934-6-27 13261 Humboldt Near Cold Springs; North Coast Ranges, Grouse Mountain. 1432 Comment
  UCD128605  Agoseris heterophylla K. Esau 1934-5-6 s.n. Humboldt above Fort Seward. 457 Comment
  UC582747  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1930-6-21 8775 B Humboldt Larrabee Valley; Northern Coast Ranges 701 Comment
  UC1199476  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1925-5-30 2700 Humboldt on grassy slopes McClellan Mountain; Northern Coast Ranges 822 Comment
  UC1239509  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6280 1/2 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 304 Comment
  HSC40827  Agoseris retrorsa Thomas W. Nelson, James Nelson 1976-7-26 3042 Humboldt Along ridge NE of Mt. Lassic (Signal Peak) 1707 Comment
  UC1541538  Agrostis Harold E. Parks May 1933 4301 a Humboldt Spruce Cove Trinidad Comment
  SEINET200940  Agrostis densiflora A. A. Beetle 1941-7-8 2884 Humboldt Stone lagoon facing ocean. 6 Comment
  CAS-BOT-BC127277  Agrostis exarata Joseph P. Tracy 1904-7-10 2119 Humboldt Northern Coast Region. Eureka. 60 Comment
  CAS-BOT-BC127281  Agrostis exarata Joseph P. Tracy 1927-7-17 8285 Humboldt Northern Coast Ranges. Three Cabins. Chaparral Mountain. 457 Comment
  CAS-BOT-BC139502  Agrostis hallii L. R. Abrams 1916-7-18 6128 Humboldt Arcata to Trinidad. 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
  HSC58793  Agrostis idahoensis Overton, Butler 1979-7-31 11459 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 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
  UC186902  Agrostis microphylla Joseph P. Tracy 1900-7-4 875 Humboldt Ocean Beach at Humboldt; Northern Coast Region, Ocean Beach, Humboldt Bay Comment
  UC589898  Agrostis pallens H. S. Yates 1936-6-16 5685 Humboldt near Bayside; Eureka Quadrangle 9 Comment
  SACT000138  Agrostis palustris S. Smith, Malcolm Nobs 1949-8-3 Humboldt Borders of irrigation ditch Comment
  UCD53462  Agrostis stolonifera P. B. Kennedy 1928-7-16 s.n. Humboldt Sea Cliffe, near Trinidad. Comment
  UC1145073  Agrostis viridis Joseph P. Tracy 1943-8-29 17445 Humboldt Eureka 30 Comment
  HSC8857  Aira caryophyllea Yarick 1960-8-3 Humboldt K & K. 7 mi, Krueger Cr. Comment
  UC526682  Aira caryophyllea Joseph P. Tracy 1933-6-13 12581 Humboldt near summit on road from Hoopa westward to Bair's; Hoopa Mountain 1066 Comment
  UCD55699  Aira caryophyllea A. H. Murphy 1951-6-1 51 Humboldt O. O. Davis Ranch. South slope of South Fork Mtn., 3 miles E of Low Gap, in Erickson Glade. Comment
  UCD55702  Aira caryophyllea A. H. Murphy 1951-5-15 n.s. Humboldt 1 mile southeast of the Fruitland-Whitlow road junction on Whitlow road. 304 Comment
  UCD55761  Aira caryophyllea Linda M. Barker 1976-4-30 1411 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC138331  Aira caryophyllea var. caryophyllea Joseph P. Tracy 1927-6-19 8199 Humboldt Northern Coast Region. Big Lagoon. 6 Comment
  CAS-BOT-BC460753  Allium amplectens Volney Rattan 1903-1-1 s.n. Humboldt Kneeland Prairie Comment
  CAS-BOT-BC460754  Allium amplectens Carl B. Wolf 1937-6-14 8810 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  HSC103255  Allium campanulatum John McRae 2014-6-3 Humboldt Six Rivers National Forest, Black Lassic Quad, Mt. Lassic , Lassics Botanical and Geological Area. 1768 Comment
  HSC77956  Allium falcifolium D. K. Imper 1982-7-13 1489 Humboldt Near Chaparral Mtn. 1386 Comment
  CAS-BOT-BC469016  Allium falcifolium Thomas W. Nelson; James L. Nelson 1980-6-10 5400 Humboldt Blocksburg Quad.; Along Swayback Ridge 4-wheel drive road 1.25 miles south of junction with Forest Service road. Comment
  CAS-BOT-BC469018  Allium falcifolium Doris K. Kildale 1926-6-9 2150 Humboldt Horse Mountain 1219 Comment
  UCR275114  Allium triquetrum Charity A. Hartshorn 2016-4-24 08 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  CHSC61689  Allium unifolium Steven Webster 1986-4-12 10 Humboldt Ca. 3 mi s of Prairie creek State Park along Highway 101. 91 Comment
  POM203239  Allium unifolium M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  HSC104412  Allium unifolium Adam N. Canter 2017-4-20 6 Humboldt BLM, Lost Coast Headland, Guthrie Creek 60 Comment
  JEPS61518  Allium validum Hilda W. Grinnell 15 Humboldt upper corner of meadow below McKay Camp; South Fork Mountain Comment
  HSC76041  Alnus incana subsp. tenuifolia Overton, Butler 1979-8-2 12572 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC527556  Alnus incana subsp. tenuifolia C. B. Wolf 1931-8-28 2365 Humboldt Redwood Hwy 4 1/2 mi n Fortuna (on road to Eureka) 15 Comment
  CAS-BOT-BC170943  Alnus rhombifolia Doris K. Kildale 1926-8-8 2457 a Humboldt Dyerville Brdige on South Fork of Eel River 45 Comment
  CAS-BOT-BC170944  Alnus rhombifolia Doris K. Kildale 1926-9-9 2686 Humboldt Little Van Duzen River on Bridgeville - Weaverville road 640 Comment
  UC213002  Alnus rhombifolia Joseph P. Tracy 1919-12-28 5306 Humboldt 5 mi above Carlotta (river bar); Northern Coast Ranges, Van Duzen River 30 Comment
  UC54758  Alnus rhombifolia Mrs. Manning Humboldt Hupa Valley Comment
  UC1197956  Alnus rhombifolia Joseph P. Tracy 1926-1-10 7347 Humboldt Along Yager Creek, Carlotta Comment
  HSC99634  Alnus rubra Will Ferrand 2002-4-27 28 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  RSA24390  Alnus rubra C. B. Wolf 1941-2-22 9917 Humboldt Along Redwood Highway 2.8 miles south of Patricks Point State Park 30 Comment
  RSA778734  Alnus rubra Lyman Benson 1928-7-10 430 Humboldt Clam Beach, Trinidad. 12 Comment
  UC198600  Alnus rubra Joseph P. Tracy 1917-10-28 4859 Humboldt North Fork of Eel River Northern Coast Ranges, around Humboldt Bay 91 Comment
  UCR142775  Alnus rubra H. E. Parks, S. T. Parks 1938-4-1 24126 Humboldt North Coast, Spruce Cove, Trinidad 61 Comment
  UCD170775  Alnus rubra Gordon Leppig 1998-3-25 724 Humboldt McKinleyville, Central Ave. South-bound lane near 101 junction. 42 Comment
  UC207704  Alopecurus geniculatus Joseph P. Tracy 1917-6-17 4816 Humboldt Salmon Creek Northern Coast Ranges, Salmon Creek 15 Comment
  UCR200272  Alopecurus geniculatus R. F. Thorne, Percy C. Everett 1965-8-9 35334 Humboldt Northwestern; Outer North Coastal region, Clam Beach County Park, along highway 3 Comment
  SEINET11674220  Alopecurus geniculatus J. P. Tracy 1951-1 19524 Humboldt back of Everett Beck house (formerly George Fray) bed of former Goose Lake, Hydesville Comment
  UC665538  Ambrosia chamissonis H. E. Parks 1941-9-1 24214 Humboldt sandy beaches at mouth Little River Comment
  HSC100625  Amelanchier alnifolia Carl C. Marshall Jun 1886 292 Humboldt Bald Hills. Comment
  CAS-BOT-BC142883  Amelanchier alnifolia var. semiintegrifolia Doris K. Kildale 1926-9-5 2629 Humboldt Lasseck's Peaks between Corral Camp & Red Peak 1676 Comment
  CAS-BOT-BC142884  Amelanchier alnifolia var. semiintegrifolia Doris K. Kildale 1927-7-17 3756 Humboldt Bug Creek 792 Comment
  CAS-BOT-BC142887  Amelanchier alnifolia var. semiintegrifolia Doris K. Kildale 1927-5-14 3192 Humboldt Big Lagoon Comment
  HSC56126  Amelanchier pallida G. L. Clifton, Griswold 1979-8-1 11917 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC56327  Amelanchier pallida Overton, Butler 1979-8-2 12680 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  SEINET3917966  Ammophila arenaria Dziekanowski, Dunn; Bennett 1976-8-6 2504 Humboldt Collected in the vicinity of a state park on the beach opposite McKinleyville.; 0 Comment
  HSC3519  Amsinckia intermedia J. W. Johnson 1962-4-21 1286 Humboldt Arcata; William Lanphere Farm about building Comment
  UC1239645  Amsinckia intermedia Joseph P. Tracy 1927-5-8 7990 Humboldt Garberville; Northern Coast Ranges 121 Comment
  HSC49034  Anagallis arvensis Patricia Shesgreen 1978-5-5 67 Humboldt 17.4 mi. S of Ferndale on Mattole Rd. 91 Comment
  HSC17827  Anagallis arvensis Frances Oldridge 1946-1 Humboldt College Hill Comment
  HSC49064  Anaphalis margaritacea Patricia Shesgreen 1978-8-2 125 Humboldt Arcata Community Forest, Arcata; 200 yds. N of field house on top of hill overlooking baseball field Comment
  HSC79468  Anaphalis margaritacea Kenneth Clark 1980-5-10 631 Humboldt Western slope above Dead Man's Gulch 130 Comment
  HSC81710  Anaphalis margaritacea Thomas W. Nelson, Jane P. Nelson 1980-8-12 6237 Humboldt Logging roads S of Lundbar Hills 61 Comment
  OBI17091  Anaphalis margaritacea Carl B. Wolf 1937-8-13 9213 Humboldt N Coast Range, 9 mi NE of Blue Lake on Lord Ellis Rd Comment
  POM318602  Anaphalis margaritacea Patricia Wilder 1968-8-21 4381 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  CAS-BOT-BC391772  Anemone deltoidea M. Louise Hutchinson 1913-5-1 s.n. Humboldt Near Eureka Comment
  HSC56311  Angelica arguta Overton, Butler 1979-8-2 12641 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC586000  Angelica genuflexa Joseph P. Tracy 1927-9-25 8380 Humboldt 2 mi s of Fields Landing (around Humboldt Bay, at Still Ranch); Northern Coast Region, Still Ranch 6 Comment
  UC582661  Angelica genuflexa Joseph P. Tracy 1937-9-30 15690 Humboldt Dow's Prairie 60 Comment
  RSA21584  Angelica hendersonii C. B. Wolf 1937-9-9 9304 Humboldt 2 miles S of Cape Mendocino. 6 Comment
  UC642237  Angelica hendersonii Joseph P. Tracy 1938-8-28 16133 Humboldt Trinidad 3 Comment
  HSC71403  Angelica hendersonii J. M. DiTomaso 1980-8-1 1817 Humboldt Table Bluff, S of Eureka, 100m from ocean Comment
  UC154250  Angelica lucida Joseph P. Tracy 1909-9-19 3087 Humboldt Region about Humboldt Bay (near Samoa, Northern Coast Region); Northern Coast Region 0 Comment
  HSC70546  Angelica tomentosa M. A. Baker 1980-7-19 3025 Humboldt Near Bret Hole. 1814 Comment
  UC1199376  Anthemis cotula Joseph P. Tracy 1918-7-1 4962 Humboldt along Eel River from South Fork to Scotia Eel River 60 Comment
  CAS-BOT-BC137781  Anthoxanthum Doris Kildale 1931-5-10 10557 Humboldt Snow Camp. Comment
  HSC10096  Anthoxanthum occidentale C. R. Phillips 1964-2-29 Humboldt E of Blue Lake on dirt road turning off Hwy 299 Comment
  HSC90402  Anthoxanthum occidentale Michele Lewis, Lisa Sims, Roger Cook 1992-5-12 49 Humboldt Behind the Redwood Science Lab, down gated fire access road 50 m, 10 m to right of trail. Comment
  HSC10095  Anthoxanthum occidentale D. W. C. Humboldt Mattole Area Comment
  SEINET11682983  Anthoxanthum occidentale K. S. Erdman 1970-1 4790 Humboldt Redwood National Park, 0.5 mi inside Holter Ridge entrance along Bald Hills Road SE of Orick Comment
  HSC102648  Anthoxanthum odoratum J. P. Smith 2009-5-31 12609 Humboldt Bald Hills Road. 791 Comment
  HSC45641  Anthoxanthum odoratum Diane L. Reed 1978-4-22 33 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC8940  Anthoxanthum odoratum R. Berg 1963-2-23 1 Humboldt Arcata, Fickle Hill area Comment
  HSC8942  Anthoxanthum odoratum Gerald T. Rood 1962-5-6 11 Humboldt Kneeland Road ca. 1 mi. W of Barry Rd. Comment
  RSA10084  Anthoxanthum odoratum Joseph P. Tracy 1925-7-5 7164 Humboldt High Prairie, on Bald Mountain. 1067 Comment
  SEINET198594  Anthoxanthum odoratum H. E. Parks, ST Parks 1952-4-30 24444 Humboldt Spruce Cove Trinidad Comment
  CDA41213  Antirrhinum vexillo-calyculatum subsp. breweri E. C. Whitney 1960-9-1 s.n. Humboldt State Highway 96 near Bluff Creek. 0 Comment
  UC147926  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy Jul 1908 2790 Humboldt ridge between Van Duzen River and Mad River (near Low Gap, Humboldt and Trinity Counties); Northern Coast Ranges 914 Comment
  HSC77455  Aphanes occidentalis L. P. Janeway 1983-5-1 255 Humboldt North Spit (Samoa Peninsula). Sand dunes W of Samoa Rd and N of Coast Guard Station 6 Comment
  UC1198739  Aphanes occidentalis J. P. Tracy 1905-4-16 2165 Humboldt Immediate vicinity of Eureka (at Bucksport); , Bucksport Comment
  HSC3218  Apocynum cannabinum Lincoln Constance 1934-6-11 848 Humboldt Bull Creek region, trail along E bank of S Fork of Eel, N Dyerville Flat Comment
  HSC31632  Aquilegia formosa var. formosa Glenn McGourty 1974-4-27 18 Humboldt 1 mi. from Capetown Bridge Comment
Read comments May 26 2016
  HSC48990  Aquilegia formosa var. formosa M. A. Baker 1979-5-25 757 Humboldt Comment
  HSC31758  Arbutus menziesii Timothy B. Devine 1974-5-4 324 Humboldt Bank of Chezem Rd. at junction of Hwy. 299 457 Comment
  HSC49044  Arbutus menziesii Patricia Shesgreen 1978-5-6 69 Humboldt Arthur W. Way Memorial Park campground. 100 yds. N of Mattole River. Comment
  SEINET12524515 Image available Arbutus menziesii M. F. Buell, Helen F. Buell 1961-1 s.n. Humboldt U.S. 299, W slope outer coast range; Lord Ellis summit; upper limit of redwood zone. Comment
  UC1198678  Arctostaphylos Joseph P. Tracy 1933-4-9 10970 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UC585948  Arctostaphylos Joseph P. Tracy 1936-8-2 15075 Humboldt French Camp Ridge 1066 Comment
  UC1225904  Arctostaphylos X candidissima Joseph P. Tracy 1947-7-9 17839 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC23730  Arctostaphylos columbiana Joseph P. Tracy 1937-7-17 15439 Humboldt Eureka 45 Comment
  CAS-BOT-BC23745  Arctostaphylos columbiana Doris K. Kildale 1926-8-22 2586 Humboldt Wiregrass Prairie on road from Orick to Martin's Ferry 716 Comment
  CAS-BOT-BC23759  Arctostaphylos columbiana Alice Eastwood 1907-4-22 41 Humboldt Near Trinidad Comment
  CAS-BOT-BC23788  Arctostaphylos columbiana A. A. Heller 1937-6-12 15918 Humboldt Along the road paralelling the ocean at Bishop Pine Lodge, 3 miles north of Trinidad. Comment
  CAS-BOT-BC23796  Arctostaphylos columbiana C. Hart Merriam 1920-9-19 s.n. Humboldt Bald Mt. between Korbel and Redwood Creek Comment
  HSC89539  Arctostaphylos columbiana M. Roantree 1985-4-28 15 Humboldt W side of Trinidad Head, along trail Comment
  LA42320  Arctostaphylos columbiana H. E. Parks; December 1931 4950 Humboldt Hobson's Trinidad 60 Comment
  UC1198660  Arctostaphylos columbiana Joseph P. Tracy 1937-7-17 15440 Humboldt Eureka 45 Comment
  UC1225898  Arctostaphylos columbiana Joseph P. Tracy 1947-5-24 17693 Humboldt Devil's Canyon Big Lagoon 152 Comment
  UCD50769  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1178 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road from Orick, French Camp Ridge. Comment
  UC1193149  Arctostaphylos glandulosa subsp. glandulosa G. W. Tourtillott 1950-10-11 33 Humboldt 1 1/2 mi mi ne Horse Mt.; Quad 28D4 609 Comment
  CAS-BOT-BC39132  Arctostaphylos hispidula Doris K. Kildale; L. B. Kildale 1930-5-11 9529 Humboldt Bald Hills - Wiregrass Prairie 792 Comment
  CAS-BOT-BC39163  Arctostaphylos hispidula Carl B. Wolf 1937-8-13 9226 Humboldt North Coast Range, 8 Mi. E. of Hoopa Valley on new road towards Trinity Summit. 1219 Comment
  RSA632795  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27774 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  HSC48756  Arctostaphylos manzanita Brad Klipfel 1973-6-10 72 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC38832  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1927-5-7 3110 Humboldt Elk Ridge, near Eel Rock Comment
  UC1173705  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1939-8-5 16391 Humboldt dry hillsides and river bar of Van Duzen Dinsmore's 731 Comment
  UC585968  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1934-7-1 13275 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC45881  Arctostaphylos nevadensis Joseph P. Tracy 1927-6-12 8132 Humboldt Horse Mountain 1432 Comment
  HSC102569  Arctostaphylos nevadensis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1556 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  JEPS38982  Arctostaphylos nevadensis Joseph P. Tracy 1935-7-30 14370 Humboldt Salmon Summit 1950 Comment
  UC1198667  Arctostaphylos patula Joseph P. Tracy 1942-9-6 17313 Humboldt along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  RSA134148  Arctostaphylos stanfordiana P. C. Everett, E. K. Balls 1959-10-24 23954 Humboldt 6.8 mi. SW from Siskiyou-Humboldt Co. Line, Somesbar to Orleans. 152 Comment
  CAS-BOT-BC43981  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17502 Humboldt Eureka 45 Comment
  CAS-BOT-BC43989  Arctostaphylos uva-ursi C. B. Wolf 1931-8-30 2374 Humboldt Samoa, Humboldt Bay. 7 Comment
  CAS-BOT-BC47206  Arctostaphylos uva-ursi W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  HSC7730  Arctostaphylos uva-ursi Norman H. Moe 1962-3-17 Humboldt Lanphere's Place Comment
  HSC7732  Arctostaphylos uva-ursi J. R. Woodside 1963-3-23 37 Humboldt 1 1/4 mi. N of Fairhaven Comment
  SBBG54023  Arctostaphylos uva-ursi R. S. Woglum 1938-8-29 2020 Humboldt seashore, Samoa Comment
  UC1196878  Arctostaphylos uva-ursi J. P. Tracy 1909-10-7 3111 Humboldt Gans Prairie 457 Comment
  RSA89766  Arctostaphylos uva-ursi var. coactilis P. A. Munz 1954-7-25 19876 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  UCD129122  Arctotheca calendula G. D. Barbe 1988-7-18 4293 Humboldt Larry Pries dairy, 3.4 miles west of Main Street, on Centerville Beach Road, Ferndale. Comment
  SEINET3918774  Aristida adscensionis J. I. Mallory 1955-9-17 122 Humboldt North-northwest 3/8 miles of headquarters, Cottrell Ranch. Quad. 29A-2.; 0 747 Comment
  HSC48771  Armeria maritima subsp. californica Brad Klipfel 1975-5-22 618 Humboldt Near city of Eureka airport S of Samoa Comment
  HSC69625  Armeria maritima subsp. californica R. Kalal 1979-5-29 34 Humboldt Along Samoa Blvd. 3 Comment
  UC1716064  Armeria maritima subsp. californica M. S. Taylor 1990-8-22 6083 Humboldt Samoa Recreation Area, Samoa Peninsula, Staging Area Eureka Comment
  UCR122371  Armeria maritima subsp. californica George K. Helmkamp, E. A. Helmkamp 2001-7-8 7017 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  HSC45266  Arnica cernua M. Alcasas 1978-6-3 113 Humboldt Horse Mtn. summit 1513 Comment
  UC668211  Arnica cernua Joseph P. Tracy 1938-6-13 15902 Humboldt Horse Mountain 1432 Comment
  UC176419  Arnica cordifolia Joseph P. Tracy 1913-6-17 4177 Humboldt at summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  HSC74699  Arnica discoidea Gail Newton 1981-7-23 2287 Humboldt Near Bug Creek Butte. 1350 Comment
  HSC48988  Arnica discoidea M. A. Baker 1979-5-25 763 Humboldt Comment
  HSC8990  Arrhenatherum elatius J. P. Tracy 1927-9-25 8369 Humboldt Eureka, alongside railroad track 0 Comment
  HSC58342  Artemisia douglasiana Overton, Butler 1979-8-2 12667 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  JEPS37044  Artemisia dracunculus Milo S. Baker 1923-7-19 86 Humboldt near Carlotta (bed of Van Dusen River); Van Dusen River Comment
  CHSC55838  Artemisia pycnocephala L. P. Janeway 1987-7-31 2540 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of the Eureka City Airport. 3 Comment
  HSC4741  Artemisia pycnocephala J. W. Johnson 1961-9-4 1098 Humboldt Christenson Farm, Samoa Peninsula, Arcata. Comment
  RSA34238  Artemisia pycnocephala C. B. Wolf 1927-8-29 1206 Humboldt Devils' Gate, S of Cape Mendocino. Comment
  RSA15560  Artemisia suksdorfii C. B. Wolf 1927-8-29 1220 Humboldt Devils' Gate, S of Cape Mendocino. Comment
  CAS-BOT-BC97242  Artemisia suksdorfii Carl B. Wolf 1937-9-9 9303 Humboldt Coast, 4 1/2 mi. So. of Cape Mendocino 6 Comment
  UC204825  Artemisia suksdorfii Joseph P. Tracy 1918-7-1 4973 Humboldt 3 mi s point of cape; Northern Coast Ranges, Cape Mendecino 3 Comment
  HSC102075  Aruncus dioicus var. acuminatus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 977 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC1198119  Asarum caudatum Joseph P. Tracy 1925-3-15 6942 Humboldt Blue Slide; on Van Duzen River 91 Comment
  HSC47656  Asarum caudatum Sheila Logan 1978-4-10 181 Humboldt Arcata Community Forest, near PSW Experimental Lab Comment
  RSA261553  Asarum caudatum Suzanne May 1967-4-15 21 Humboldt On Kneeland Road, 5 miles east of Bridgeville 244 Comment
  HSC65862  Asarum hartwegii Gail Newton 1980-7-22 1698 Humboldt Near Devils Backbone 1545 Comment
  SEINET12097904  Asarum hartwegii H. P. Chandler 1901-1 1478 Humboldt Klamath River 396 Comment
  UC1222669  Asclepias speciosa Joseph P. Tracy 1950-7-6 19002 Humboldt 2 mi s Burr Valley (on the Albee Road) 1158 Comment
  SEINET3070824 Image available Astragalus agnicidus H. Tosten 1931-6-7 s.n. Humboldt Near Bear Buttes, 4 mi S of Miranda. Local on Tosten and Pierce Ranch. Comment
  HSC82037  Astragalus purshii var. lectulus Thomas W. Nelson, James Nelson 1980-6-10 5405 Humboldt Along Swayback Ridge 4-wheel drive road, 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  CAS-BOT-BC193139  Astragalus rattanii var. rattanii M. Louise Hutchinson 1913-4-1 s.n. Humboldt Eureka Comment
  UC162811  Astragalus rattanii var. rattanii Joseph P. Tracy 1903-5-23 1903 Humboldt along sand bars of Eel River at Alder Point; Northern Coast Ranges, Eel River at Alder Point 91 Comment
  HSC14595  Astragalus umbraticus D. E. Anderson 1963-9-29 2851 Humboldt Fish Lake. Comment
  HSC41304  Asyneuma prenanthoides Brad Klipfel 1974-7-23 467 Humboldt Horse Mtn. Comment
  HSC72620  Asyneuma prenanthoides J. P. Smith 1977-7-3 9236 Humboldt Six Rivers National Forest, on Rd. to Onion Lake, 4.7 mi. from junction with Hwy. 36 610 Comment
  UCD136278  Athyrium filix-femina Lincoln Constance 1934-6-2 785 Humboldt Bull Creek Region, South Fork Eel River. Comment
  CAS-BOT-BC69523  Athyrium filix-femina subsp. cyclosorum Doris K Niles 1948-4-17 3 Humboldt Peugh Road Creek, 1 mi. e. of Loleta. Comment
  RSA137262  Athyrium filix-femina subsp. cyclosorum I. L. Wiggins 1957-6-19 14127 Humboldt 2.5 miles west of Pepperwood in dense Redwood forest Comment
  HSC55110  Athyrium filix-femina var. cyclosorum G. L. Clifton 1979-7-31 11854 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC55210  Athyrium filix-femina var. cyclosorum Walter Overton 1979-8-1 12341 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  JEPS341  Athyrium filix-femina var. cyclosorum Wm. K. D. Reynolds August, 1933 1 Humboldt Briceland Comment
  HSC4339  Atriplex prostrata Larry Berti 1968-10-26 Humboldt Big Lagoon County Park, SW corner Comment
  CDA18213  Avena barbata G. D. Barbe, T. C. Fuller 1974-6-17 1841 Humboldt North Coast Ranges; Shelter Cove, uphill, E of Sail Court. 91 Comment
  HSC102945  Avena barbata J. P. Smith 2009-5-30 12598 Humboldt Arcata. Near intersection of Valley West and Giuntoli Road Comment
  HSC79448  Avena barbata Kenneth Clark 1980-4-18 578 Humboldt Shelter Cove, along access trail to Dead Man's Gulch 107 Comment
  UC526704  Avena barbata Joseph P. Tracy 1933-5-20 12228 Humboldt 3 mi S of point of cape Cape Mendocino (SW slopes, fronting the ocean); Northern Coast Ranges 3 Comment
  UCD56296  Avena fatua A. H. Murphy 1951-4-2 s.n. Humboldt Side of Highway 101 / mile south of Phillipsville. Comment
  CAS-BOT-BC66223  Azolla filiculoides Malcom A. Nobs; S. Galen Smith 1949-8-9 1246 Humboldt Clam Beach Comment
  SEINET946130  Baccharis douglasii J. P. Tracy 1938-1 16128 Humboldt Mouth of Little River 9 Comment
  JEPS21316  Baccharis glutinosa W. L. Jepson 1932-7-27 16425 Humboldt Bull Creek 106 Comment
  HSC100425  Baccharis pilularis Carl C. Marshall Feb 1887 391 Humboldt Hillsides near the coast. Comment
  HSC28271  Barbarea verna Thomas W. Nelson 1971-4-12 372 Humboldt Beside Hwy. 101 at the Hookton Rd. junction Comment
  HSC89490  Bellis perennis P. A. Daly 1986-2-28 64 Humboldt Trinidad Head, along trail 61 Comment
  HSC62831  Bensoniella oregona William Davilla 1980-10-16 1219 Humboldt Snow Camp Mtn. 1390 Comment
  UC552297  Berberis aquifolium Joseph P. Tracy 1934-7-6 13660 Humboldt at crossing of the Kneeland Rd Lawrence Creek 457 Comment
  HSC3361  Berberis darwinii G. L. Cribbs 1966-5-7 1049 Humboldt Cooper Canyon at end of L St. 15 Comment
  CAS-BOT-BC75680  Berberis nervosa Doris K. Kildale 1928-5-15 6032 Humboldt Bug Creek, Chaparral Mountain. Comment
  HSC3352  Berberis nervosa Francis Winter 1960-4-23 Humboldt 2 mi. E of Korbel 46 Comment
  SDSU13767  Berberis nervosa Harvey 1938-8-14 2318 Humboldt U.S. 299. Arcata-Willow Creek. Comment
  UC35055  Berberis nervosa Chestnut and Drew 1888-7-11 Humboldt Jarnigan's Comment
  CAS-BOT-BC75803  Berberis pinnata Doris K. Kildale 1929-3-19 7025 Humboldt Top of Liscom Hill, near Essex. 853 Comment
  CAS-BOT-BC66262  Blechnum spicant E. A. McGregor 1921-8-17 s.n. Humboldt On old abandoned road grade, S.E. of Orick Comment
  SFV12198  Blennosperma nanum R. Gankin, W. R. Hildreth 1966-3-15 700 Humboldt Serpentine slopes of Klamath River Canyon. State Highway 96, 4.6 miles north of Hoopa. Comment
  CAS-BOT-BC15788  Boechera acutina Joseph Prince Tracy 1932-7-11 10396 Humboldt Klamath Mountains. At Corral Prairie. 1524 Comment
  UC562685  Boechera platysperma Joseph P. Tracy 1935-7-28 14319 1/2 Humboldt Head of Devils Hole Trinity Summit, Devils Hole 1828 Comment
  UC562686  Boechera subpinnatifida Joseph P. Tracy 1936-6-17 14971 Humboldt nw slope Buck Mountain; Northern Coast Ranges 853 Comment
  HSC24555  Boschniakia hookeri Rudolf W. Becking 1972-6-30 720608 Humboldt Fish Lake area, Orleans 762 Comment
  JEPS13526  Boschniakia strobilacea W. L. Jepson 1902-7-16 2052 Humboldt Trinity Summit. 2133 Comment
  UC1198848  Boykinia major E. Ethel Tracy 1919-8-1 Humboldt Trinity Summit; Northern Coast Ranges, Trinity Summit 1524 Comment
  HSC96479  Boykinia occidentalis Gordon Leppig 1997-6-19 441 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  CAS-BOT-BC420262  Boykinia occidentalis Roxana S. Ferris 1937-8-21 s.n. Humboldt in cliff above beach, Shelter Cove Comment
  CAS-BOT-BC36703  Brassica rapa John H. Thomas 1966-3-19 11487 Humboldt Southern end of Big Lagoon just inland from the coast between Eureka and Crescent City. Comment
  HSC32555  Brickellia californica Thomas W. Nelson 1973-9-3 1124 Humboldt McKeown Ranch N of Dinsmore Comment
  UC894169  Brickellia californica Carl D. Duncan 1920-9-22 Humboldt Hoopa Valley Comment
  CHSC59634  Briza maxima R. N. Raynor 1935-5-22 Humboldt Ft. Seward. Comment
  HSC103008  Briza maxima J. P. Smith 2014-5-20 13850 Humboldt Samoa Peninsula 6 Comment
  HSC33766  Briza maxima John S. Palmer 1975-5-24 368 Humboldt Off Samoa Blvd., across from boat landing Comment
  HSC9084  Briza maxima Dennis Anderson 1965-5-8 3626 Humboldt 1 mi. E of Blue Lake on Hwy. 299 Comment
  HSC9086  Briza maxima R. D. Modafferi 1965-5-13 70 Humboldt Intersection of Main St. and old Hwy. 101, S of Trinidad Comment
  UCR274950  Briza maxima Charity A. Hartshorn 2016-4-24 25 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  SEINET4182983 Image available Briza minor Franklin Fitz Humboldt Backyard weed patch in Arcata Comment
  SEINET4183122 Image available Briza minor Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15063 Humboldt Meadow, Coolidge, Redwood Park. Comment
  UC37551  Briza minor Joseph Burtt Davy and Walter C. Blasdale 1899-6-12 5473 Humboldt Elk Prairie Comment
  SEINET200692  Brodiaea capitata Joseph P. Tracy 1925-5-30 7028 Humboldt Laribee Valley. 701 Comment
  UCSB15651  Brodiaea coronaria Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  UC1197745  Brodiaea elegans subsp. elegans Joseph P. Tracy 1912-6-9 3691 Humboldt Alton Northern Coast Region 30 Comment
  UC15011  Brodiaea elegans subsp. elegans Harley P. Chandler June, 1901 1413 Humboldt Klamath River North Coast Ranges 304 Comment
  HSC35619  Brodiaea elegans subsp. elegans Thomas W. Nelson, B. Reinhardt 1975-7-30 2114 Humboldt E of Pilot Rock Comment
  HSC69895  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson 1977-7-29 3637 Humboldt Beside SR 36 at head of Larabee Valley 823 Comment
  JEPS7652  Brodiaea elegans subsp. elegans Milo S. Baker 1923-7-28 131 a Humboldt near camp on South Fork Yager Creek Comment
  RSA249396  Brodiaea stellaris D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5697 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC187097  Bromus carinatus var. carinatus Joseph P. Tracy 1911-6-25 3265 Humboldt Northern Coast Region, atEureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC9274  Bromus diandrus P. W. Shields 1956-4-21 Humboldt 5 mi. SE Arcata. Comment
  HSC9295  Bromus diandrus R. H. Berg 1963-5-12 72 Humboldt King Salmon, S of Eureka. Comment
  UC180223  Bromus diandrus Joseph P. Tracy 1913-6-22 4273 Humboldt opposite Buck Mountain (in Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  UCSC000049  Bromus japonicus H. S. Yates 1936-6-17 5687 Humboldt 1 mile W. of Bridgeville - Dyerville 183 Comment
  HSC32513  Bromus laevipes D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5716 Humboldt McKeown Ranch, N of Dinsmore Comment
  SEINET200634 Image available Bromus tectorum Joseph P. Tracy 1931-5-3 9349 Humboldt Along Mad River near Blue Lake. 15 Comment
  UC1145161  Bromus vulgaris Joseph P. Tracy 1937-7-25 15540 Humboldt Trintiy Summit, head of Little Hors-Linto Creek Little Hors-Linto Creek; Trintiy Summit, Little Hors-Linto Creek 1371 Comment
  UC179918  Bromus vulgaris Joseph P. Tracy 1912-7-27 3884 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC6602  Cakile edentula C. B. Wolf 1927-8-29 1217 Humboldt Devil's Gate, S of Cape Mendocino. Comment
  HSC39982  Cakile maritima Linda M. Barker 1976-6-22 1628 Humboldt 3 mi. W of Arcata Comment
  UC1198279  Cakile maritima Joseph P. Tracy 1946-1-13 17517 Humboldt Centerville Beach 3 Comment
  CAS-BOT-BC185317  Calamagrostis foliosa Joseph Burtt Davy 1900-5-1 6602 Humboldt Hardy Creek. Comment
  HSC97775  Calamagrostis foliosa C. Gillevan, C. Sander 2003-8-13 330 Humboldt Cliffs above Randal Creek, Cooksie Creek, and Gitchel Creek, in the King Range Area 9 Comment
  HSC76535  Calamagrostis nutkaensis D. K. Imper 1981-7-21 897 Humboldt Near Table Bluff 38 Comment
  UC1131347  Calamagrostis nutkaensis H. S. Yates 1936-6-16 5681 Humboldt 1 mi ne Samoa; Eureka Quadrangle Comment
  UC1198378  Calandrinia ciliata Joseph P. Tracy 1909-5-30 2979 Humboldt along railroad in Ryan's Slough; Northern Coast Region, Region about Humboldt Bay 0 Comment
  SBBG115082  Calochortus amabilis D. Leaberry 1991-6-13 Humboldt Hwy 254 (Avenue of the Giants), ca. 1 mi S of Phillipsville Comment
  CAS-BOT-BC494355  Calochortus tolmiei Doris K. Kildale 1927-5-13 3248 Humboldt Redwood creek at Berngs' 289 Comment
  HSC34875  Calochortus tolmiei Thomas W. Nelson, James Nelson 1975-5-5 1779 Humboldt Beside Hwy. 101, ~ 4 mi. S of the Salmon Creek Bridge Comment
  HSC34909  Calochortus tolmiei Thomas W. Nelson 1975-5-27 1883 Humboldt Beside Petrolia-Ferndale Rd., 5 mi. S of Ferndale Comment
  HSC44357  Calochortus tolmiei Brad Klipfel 1974-5-27 399 Humboldt Horse Mtn., ridge top near forks in rd. Comment
  UC198648  Calochortus tolmiei Joseph P. Tracy 1917-5-30 4813 Humboldt w of Dows Prairie; Northern Coast Ranges 15 Comment
  UC1222580  Caltha biflora Joseph P. Tracy 1951-6-14 19408 Humboldt Snow Camp. 1402 Comment
  RSA0120938  Caltha biflora Joseph P. Tracy 1951-6-14 19408 Humboldt Snow Camp. 1402 Comment
  UC1196207  Caltha biflora Joseph P. Tracy 1933-7-16 12779 Humboldt Northern Coast Ranges. At McKay Camp, South Fork Mountain. 1676 Comment
  HSC100613  Caltha leptosepala Carl C. Marshall Jul 1886 333 Humboldt Trinity summit and S. Fork Mtn. Comment
  CAS-BOT-BC273312  Calycadenia fremontii L. R. Abrams 1918-6-16 7133 Humboldt Willow Creek Comment
  UC175973  Calycadenia truncata Joseph P. Tracy 1908-7-1 2761 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers); Northern Coast Ranges 914 Comment
  CAS-BOT-BC275365  Calycadenia truncata var. truncata Doris K. Kildale 1927-7-3 3656 Humboldt Willow Creek Flat 152 Comment
  UC1196473  Calypso bulbosa Mabel Griffin 1927-4-23 Humboldt Dows Prairie, at top of North Hill Dows Prairie; , North Hill 60 Comment
  HSC97630  Calyptridium monospermum Cara Witte 2007-6-5 214 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1 mile south of intersection with 5N04. 1434 Comment
  RSA337437  Calystegia soldanella R. F. Thorne, P. C. Everett, K. Thorne 1965-8-9 35307 Humboldt Big Lagoon. 3 Comment
  SD42477  Calystegia soldanella Carl B. Wolf 1937-6-18 8902 Humboldt Centerville Beach. 3 Comment
  CDA39887  Calystegia soldanella B. F. Kemp May 1958 1202 -58 Humboldt Mouth of Mad River. 0 Comment
  CAS-BOT-BC493385  Camassia quamash subsp. linearis Volney Rattan 1878-1-1 s.n. Humboldt unspecified Comment
  UCR143291  Camissonia cheiranthifolia J. P. Smith, Thomas W. Nelson 1977-6-30 9202 Humboldt North Coast, Samoa Peninsula just east of the drag strip 6 Comment
  OBI36380  Camissoniopsis cheiranthifolia David J. Keil 1983-7-1 17283 Humboldt Ca. 5 mi NW of Petrolia along mattole Rd Comment
  CHSC10102  Camissoniopsis cheiranthifolia subsp. cheiranthifolia J. W. Johnson 1961-8-17 1044 Humboldt Arcata. Sand dune fields, Lanphere Farm. Comment
  JEPS11741  Campanula prenanthoides W. L. Jepson 1932-7-26 16413 Humboldt Bull Creek Comment
  SEINET10939028  Campanula prenanthoides Klipfel 1974-7-23 KLIPFEL 467 Humboldt Horse Mountain, at junction of a draw and the saddle of the ridge. T6N R4E Sec. 27 SW 1/4 Comment
  SEINET10972394  Campanula prenanthoides Duncan 1920-9-22 Duncan s.n. Humboldt Hoopa Valley Comment
  HSC56968  Campanula scouleri Overton , Butler 1979-7-23 9497 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  SEINET10463479  Campanula scouleri Manning MANNING [ 305 ] Humboldt Near Hupa (Bald Hills). 457 Comment
  SEINET7714829  Campanula scouleri Chesnut, Drew 1888-7-19 Humboldt Pilot Ridge Comment
  CAS-BOT-BC37435  Cardamine californica Lincoln Constance; Reed Clark Rollins 1942-5-20 2998 Humboldt Eel River, 1 mile north of Pepperwood. 45 Comment
  UC673283  Cardamine californica Lincoln Constance and Reed C. Rollins 1942-5-20 2998 Humboldt Eel River 1 mi n Pepperwood; Klamath-Siskiyou Region, Eel River n of Pepperwood 45 Comment
  UC162639  Cardamine californica Harley P. Chandler May 1901 1091 Humboldt Idlewild near Dyerville (Humboldt Bay); North Coast Ranges, , Idlewild 152 Comment
  POM311254  Cardamine californica var. integrifolia Keith C. Hughes 1961-2-3 326 Humboldt Richardson Grove State Park; Mt. Range: Coast Ranges; Drainage Area: Pacific Slope. 137 Comment
  CAS-BOT-BC410931  Cardamine cordifolia Allison Hastings 1938-5-14 s.n. Humboldt Maple Springs Comment
  HSC104050  Cardamine nuttallii E. R. Fyer 2015-3-19 5 Humboldt Six Rivers National Forest; along the East Fork of Willow Creek, off Hwy. 299. 505 Comment
  HSC99363  Cardamine nuttallii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 12 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CAS-BOT-BC37890  Cardamine oligosperma Alice Eastwood 1907-4-21 21 Humboldt Trinidad. Comment
  HSC89488  Cardamine oligosperma P. A. Daly 1986-2-28 66 Humboldt Trinidad Head, along trail 61 Comment
  CAS-BOT-BC384763  Cardionema ramosissimum W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  CAS-BOT-BC384764  Cardionema ramosissimum Alice Eastwood 1923-8-14 12315 Humboldt Samoa Comment
  CAS-BOT-BC384767  Cardionema ramosissimum Doris K. Kildale 1928-8-10 6265 Humboldt Samoa peninsula - Humboldt Bay Comment
  CHSC55892  Cardionema ramosissimum L. P. Janeway 1987-7-31 2546 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  HSC37574  Cardionema ramosissimum J. D. Ackerman 1975-6-10 458 Humboldt 1 mi. N of Samoa bridge turnoff from Samoa Blvd., S of Manila Comment
  CAS-BOT-BC17792  Carex amplifolia Doris Kildale 1931-6-6 10865 Humboldt Gans Prairie, Orick - Weitchpec road. 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
  CAS-BOT-BC19213  Carex barbarae Joseph Prince Tracy 1929-6-23 8606 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  SEINET200966  Carex bolanderi Joseph P. Tracy 1935-6-23 13985 Humboldt Northern Coast Ranges French Camp Ridge. 1067 Comment
  SEINET7552597 Image available Carex bolanderi L. P. Janeway 2003-7-30 7947 Humboldt High North Coast Ranges. Small spring and seep 100 m southwest of Clear Lake, 3.1 km southeast of Titlow Hill. 1494 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
  SEINET7552610 Image available Carex bolanderi David Castaner 1989-6-19 10248 b Humboldt Fern Canyon. Comment
  BLMAR357  Carex cusickii Jennifer Anthony-Wheeler 2003-7-23 357 Humboldt Headwaters Forest Reserve, growing in natural pond with large floating rafts of logs 426 Comment
  HSC38078  Carex densa Thomas W. Nelson, James Nelson 1976-5-30 2629 Humboldt McKeown Ranch, N of Dinsmore. Comment
  RSA293172  Carex densa Thomas W. Nelson, Ken Hindley 1978-5-28 4086 Humboldt On McKeown Ranch north of Dinsmore. 762 Comment
  CAS-BOT-BC34974  Carex densa Joseph Prince Tracy 1936-6-3 14847 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  JEPS80030  Carex densa Joseph P. Tracy 1936-6-17 14953 Humboldt lower foothills of nw slope of Buck Mountain Northern Coast Ranges, Buck Mountain 762 Comment
  UC562432  Carex deweyana subsp. leptopoda Joseph P. Tracy 1935-6-8 13937 Humboldt Eureka 60 Comment
  JEPS109270  Carex diandra D. W. Taylor 2004-6-23 19127 Humboldt Pond on the divide between Frost Creek and Martin Creek, about 1 air mile e of the Alderpoint road. Comment
  UC562648  Carex feta Joseph P. Tracy 1935-5-25 13838 Humboldt Fort Seward 106 Comment
  CAS-BOT-BC20012  Carex feta H. D. Ripley; R. C. Barneby 1945-6-16 6823 Humboldt NW of Harris. 883 Comment
  CAS-BOT-BC20874  Carex globosa Joseph Prince Tracy 1932-4-3 9791 Humboldt North Coast Ranges. Englewood. 91 Comment
  CAS-BOT-BC146591  Carex gynodynama H. D. Ripley; R. C. Barneby 1945-6-16 6812 Humboldt 2.5 miles N. of Miranda Comment
  CHSC48077  Carex harfordii L. P. Janeway 1983-5-15 297 Humboldt In riparian bend of Mad River on S side, near Fish Hatchery Rd and across river from Blue Lake. 24 Comment
  SEINET7561251 Image available Carex harfordii Andrew L. Hipp 1999-5-31 438 Humboldt Phillipsville, Edge of 101 (Redwood Hwy), big E-turn just S of the Miranda exit. 152 Comment
  HSC70469  Carex hendersonii J. P. Tracy 1905-6-25 2202 Humboldt Eureka 0 Comment
  UC562263  Carex jonesii Joseph P. Tracy 1935-7-26 14257 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  CAS-BOT-BC35566  Carex jonesii Joseph Prince Tracy 1932-7-15 10573 Humboldt Trinity Summit, at Corral Prairie 1584 Comment
  CHSC107129  Carex laeviculmis R. E. Brainerd 2009-7-23 1567 Humboldt North Coast Range, South Fork Mountain; 19.6 miles west-northwest of Hayfork. UTM Zone 10 453477E 4494945N. 1661 Comment
  CHSC90286  Carex laeviculmis Thomas W. Nelson; Jane P. Nelson 1987-6-11 8587 Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  RSA88658  Carex laeviculmis F. W. Peirson 1941-7-23 13091 Humboldt Van Damme State Park. Along the creek about 2 miles from camp. Comment
  HSC48371  Carex leptopoda D. H. Norris May 1970 12464 Humboldt Gold-Bluff Beach, Prairie Creek Redwoods State Park Comment
  JEPS79830  Carex luzulina Joseph P. Tracy Jul 16 1930-Jul 19 1930 8987 Humboldt South Fork Mountain at McKay Camp, Northern Coast Ranges South Fork Mountain; Northern Coast Ranges, South Fork Mt., McKay Camp 1676 Comment
  CAS-BOT-BC31584  Carex luzulina var. luzulina Joseph Prince Tracy 1930-7-16 8987 Humboldt South Fork Mountain, in wet meadow at McKay Camp. 1676 Comment
  CAS-BOT-BC539862  Carex mendocinensis Alice Eastwood; John Thomas Howell 1937-6-24 4866 Humboldt 5 mi E of Berry Summit Comment
  HSC76390  Carex mendocinensis L. P. Janeway 1982-6-20 14 Humboldt S of Horse Mtn., along Rd. 6N36, 100 m N of Titlow Hill Rd. 1384 Comment
  CAS-BOT-BC32129  Carex multicaulis Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. 1371 Comment
  CAS-BOT-BC32131  Carex multicaulis Joseph Prince Tracy 1927-3-27 7862 Humboldt Trinity River Valley, near the South Fork. 182 Comment
  UC1152054  Carex multicaulis Joseph P. Tracy 1949-8-11 18465 Humboldt e of headwaters Redwood Creek (beginning where the electric power line crosses, going southward); Kinsey Ridge 1280 Comment
  UC562668  Carex multicostata Joseph P. Tracy 1928-6-24 8465 Humboldt Valley of South Yager Creek 762 Comment
  HSC103353  Carex nervina Thomas W. Nelson, Jane Nelson 1987-6-11 8604 Humboldt Box Spring at Box Camp; along trail to North Trinity Mountain. 1524 Comment
  CAS-BOT-BC119538  Carex nudata Harley Pierce Chandler 1901-5-1 1235 Humboldt Unspecified. 91 Comment
  CAS-BOT-BC119544  Carex nudata L. P. Janeway 1983-7-23 437 Humboldt Hoopa quad. Along the W side Klamath River at Aikens Creek. 91 Comment
  UCR52378  Carex nudata L. P. Janeway 1984-4-28 751 Humboldt Garberville Q., West side of the South Fork of Eel River at Butte Creek, across the river from Miranda. 75 Comment
  CAS-BOT-BC119543  Carex nudata L. P. Janeway 1983-7-23 436 Humboldt Willow Creek quad. Along the W edge of Trinity River near the Willow Creek Airstrip. 137 Comment
  HSC70471  Carex nudata J. P. Tracy 1911-6-4 3221 Humboldt Along Little River, 5 mi. from coast 122 Comment
  POM126515  Carex nudata Joseph P. Tracy 1922-5-29 6069 Humboldt South Yager Creek Valley. 762 Comment
  CAS-BOT-BC119387  Carex obnupta Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka Comment
  SDSU11682  Carex obnupta D. F. Howe 1961-8-1 Humboldt 3 miles north of Arcata on #101 Comment
  HSC98947  Carex pachystachya Cara Witte 2008-7-2 810 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  CAS-BOT-BC28309  Carex scopulorum var. bracteosa Joseph Prince Tracy 1932-7-14 10562 Humboldt Trinity Summit, Corral Prairie, in wet meadow. 1584 Comment
  CAS-BOT-BC118230  Carex scopulorum var. bracteosa Joseph Prince Tracy 1932-7-17 10675 Humboldt Trinity Summit. Wet meadow heading into Devil's Hole. 1828 Comment
  CAS-BOT-BC117348  Carex stipata LeRoy Abrams 1918-6-16 7166 Humboldt Willow Creek. Comment
  SEINET7577056 Image available Carex subbracteata Andrew L. Hipp 1999-5-31 448 Humboldt Blocksburg, 1/8 mi N of the Blocksburg Dump, Alder Pt Road. 503 Comment
  HSC48739  Carex subfusca Brad Klipfel 1973-6-10 64 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS75415  Carex tumulicola W. L. Jepson 1932-7-26 16415 Humboldt Bull Creek 106 Comment
  UC194812  Carex tumulicola Joseph P. Tracy 1912-7-26 3835 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  RSA91641  Carex tumulicola Joseph P. Tracy 1932-5-1 9853 Humboldt Grassy open places at Redway. Vicinity of Garberville. 122 Comment
  UC202501  Carex tumulicola Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3591 Humboldt Hydesville Northern Coast Ranges 60 Comment
  HSC99381  Carex utriculata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 30 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
  UC50833  Carex vesicaria var. major J. P. Tracy 1901-6-30 1194 Humboldt immediate vicinity Eureka 0 Comment
  HSC7087  Carex viridula H. E. Parks Sep 1934 5214 Humboldt Dry Lagoon 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
  UC1353974  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt ca 2 mi w Dyerville (on ridge 1 mi n above Bull Creek); Lukes Prairie Comment
  RSA167257  Castilleja affinis Joseph P. Tracy 1950-6-15 18799 Humboldt Mail Ridge, north of Harris 7 miles Comment
  HSC97203  Castilleja affinis subsp. affinis Kiera A. Freeman, Heather J. Perry 2007-6-4 2 Humboldt 8 mi. S of Hwy. 299 on NF1 1372 Comment
  HSC23744  Castilleja affinis subsp. litoralis Tim Baroni 1971-7-6 115 Humboldt 3 mi. S of Ferndale on Mattole Rd. Comment
  HSC59736  Castilleja affinis subsp. litoralis Clark L. Miller 1979-5-13 6127 Humboldt N of Trinidad along Patricks Point Dr. Comment
  JEPS25792  Castilleja affinis subsp. litoralis L. R. Heckard 1960-8-23 1210 Humboldt about 0.5 mi s Dry Lagoon State Park (near Orick) 152 Comment
  HSC90806  Castilleja ambigua subsp. humboldtiensis Gail Newton 1982-5-2 2508 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC91171  Castilleja ambigua subsp. humboldtiensis Leonel Arguello 1989-6-11 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  RSA167243  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1950-7-2 18974 Humboldt Near top of ridge, 1 mile south of Grizzly Camp. Comment
  UC1222836  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1951-6-26 19587 Humboldt n side Board Camp Mountain (at extreme head of Redwood Creek); Redwood Creek 1541 Comment
  CAS-BOT-BC255522  Castilleja applegatei var. pinetorum Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1371 Comment
  UC146238  Castilleja attenuata Joseph P. Tracy 1903-5-22 1881 Humboldt Alder Point Northern Coast Ranges, Eel River (on Eel River) 152 Comment
  HSC46970  Castilleja exserta subsp. latifolia J. P. Smith, Thomas W. Nelson 1977-6-30 9210 Humboldt Samoa Peninsula just E of the drag strip. Comment
  JEPS76854  Castilleja exserta subsp. latifolia L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1978-5-29 4825 Humboldt Samoa dunes Samoa Comment
  UC1011938  Castilleja exserta subsp. latifolia F. W. Pennell and J. P. Tracy 1940-7-6 26085 Humboldt w of Lolita (Table Bluff L.H.) 0 Comment
  HSC56307  Castilleja miniata Overton, Butler 1979-8-2 12624 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  RSA254787  Castilleja pruinosa Thomas W. Nelson 1974-5-30 1349 Humboldt Growing along the Hoopa-Redwood Valley Road. Comment
  UC1222459  Castilleja rubicundula subsp. lithospermoides H. E. Parks and Joseph P. Tracy 1930-5-25 8723 Humboldt near Bridgeville 182 Comment
  RSA517384  Castilleja wightii R. C. Bacigalupi, L. R. Heckard 1964-7-27 8962 Humboldt Shaded bend of road just (1/8 mile) above and east of Shelter Cove. On partly shaded N-facing road bank. Comment
  RSA758814  Ceanothus arcuatus D. H. Wilken, E. L. Painter 2007-6-4 16738 Humboldt Titlow Road, 1.3 linear km southwest of summit of Horse Mountain, west of head of Horse Mountain Creek. 1325 Comment
  SBBG115928  Ceanothus arcuatus J. M. Tucker 1948-9-3 1852 Humboldt House Mtn at jct of rd to Grouse Mtn and rd to Horse Mtn Mine 1463 Comment
  HSC97479  Ceanothus cordulatus Cara Witte 2007-5-29 135 Humboldt Along National Forest 1 on Kinsey Ridge. 1278 Comment
  SEINET10805177  Ceanothus cuneatus var. cuneatus Dylan O. Burge 2009-5-11 Burge 1154 c Humboldt Willow Creek watershed, north-west slope of Brush Mountain, west of entrance to C.R.R. Brown and Sons Quarry, roadside on SR 299, 6.8 road miles (10.9 km) east of Berry Summit, 4.0 km 260 deg. (True) WSW of Willow Creek. 410 Comment
  UC33617  Ceanothus cuneatus var. cuneatus Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  POM118617  Ceanothus incanus Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville. Comment
  BLMAR249  Ceanothus integerrimus Jennifer Anthony-Wheeler 1997-7-24 249 Humboldt Lacks Creek, growing in disturbed sites among forest 1219 Comment
  UC1198012  Ceanothus integerrimus Joseph P. Tracy 1934-4-15 13182 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC33627  Ceanothus integerrimus Chesnut and Drew 1888-7-9 Humboldt Kneeland Prairie Comment
  RSA46885  Ceanothus integerrimus var. californicus Doris K. Kildale 1926-4-25 1813 Humboldt Hoopa Mt. Comment
  HSC36673  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-5-8 7 .8575 Humboldt Mattole Valley, 3 mi W of Honeydew 107 Comment
  UC775012  Ceanothus parryi Carl B. Wolf 1941-7-27 11086 Humboldt on TD. to Freshwater 5.8 mi w Maple Creek; North Coast Ranges, w Maple Creek on TD. to Freshwater 609 Comment
  HSC33413  Ceanothus pumilus Thomas W. Nelson 1974-5-30 1350 Humboldt Along Hoopa-Redwood Valley Rd. Comment
  HSC43229  Ceanothus pumilus R. Sutherland 1976-4-17 5 .17476 Humboldt 549 Comment
  CAS-BOT-BC52981  Ceanothus thyrsiflorus Mrs. Rachel Ellery 1916-4-1 s.n. Humboldt Beatrice Comment
  HSC69626  Ceanothus thyrsiflorus R. Kalal 1980-5-8 33 Humboldt Arcata oxidation ponds 2 Comment
  RSA25755  Ceanothus thyrsiflorus Carl B. Wolf 1941-7-28 11091 Humboldt 1.5 miles N of Loleta along the redwood Hwy, 23 Comment
  SBBG71387  Ceanothus thyrsiflorus var. thyrsiflorus R. Hartwell 1938-8-6 Humboldt above Arcata, near coast Comment
  CAS-BOT-BC52409  Ceanothus velutinus var. velutinus C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. between Shelter Cove and Kenny Comment
  CAS-BOT-BC277187  Centaurea X pouzinii T. C. Fuller 1960-8-25 4975 Humboldt Pacific Lumber Co., Perrott Creek, across Eel River from Dyerville Comment
  UC1222953  Centaurea cyanus Joseph P. Tracy 1948-8-8 18097 Humboldt halfway between Bridgeville and head of S. Yager Bridgeville Comment
  JEPS11983  Centaurium muehlenbergii Rimo Bacigalupi with G. T. Robbins 1954-6-28 4655 Humboldt 4.6 mi s Weitchpec (Hoopa Valley Indian Reservation, along highway, high above Trinity River, between Hoopa Valley and Weitchpec) 167 Comment
  UC176992  Centaurium muehlenbergii Joseph P. Tracy 1912-7-23 3798 Humboldt 3 mi above mouth of South Fork of Eel River (along South Fork of Eel River); Northern Coast Ranges, South Fork of Eel River 30 Comment
  JEPS64317  Cephalanthera austiniae Chesnut and Drew 1888-1 Humboldt Comment
  UC162889  Cerastium arvense Mrs. M. H. Manning May 1902 Humboldt near Hupa Hupa Comment
  HSC79373  Cerastium glomeratum Kenneth Clark 1980-3-27 552 Humboldt Above Dead Man's Gulch 183 Comment
  UC668111  Cerastium glomeratum Joseph P. Tracy 1927-3-27 7849 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley, Willow Creek 152 Comment
  HSC100514  Cercis occidentalis Carl C. Marshall Apr 1887 384 Humboldt Hoopa Valley. Comment
  HSC97628  Chaenactis douglasii var. douglasii Cara Witte 2007-6-12 241 Humboldt Horse Mountain Botanical Area. Near mine area. Forest Service Road 6N38. 1311 Comment
  CAS-BOT-BC85652  Chamaecyparis lawsoniana Joseph P. Tracy 1927-3-27 7864 Humboldt Willow Creek Canyon 762 Comment
  HSC56986  Chamaecyparis lawsoniana Overton, Butler 1979-7-23 9534 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  SBBG367  Chamaecyparis lawsoniana J. W. Howe 1938-3-30 Humboldt Humboldt County [no specific locality] Comment
  HSC69753  Chamaesyce maculata Thomas W. Nelson 1977-10-10 3754 Humboldt Jct. of Fairway Dr. and Lundbar Place, Eureka Comment
  UC1122511  Chamerion angustifolium subsp. circumvagum H. L. Person 1932-7-16 Humboldt hwy n Trinidad; Rock Point Quadrangle Comment
Read comments Aug 3 2007
  UC505109  Chamerion angustifolium subsp. circumvagum Joseph P. Tracy 1932-7-17 10664 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit 1676 Comment
  HSC55068  Cheilanthes gracillima G. L. Clifton, Griswold 1979-7-31 11648 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC70250  Cheilanthes gracillima M. A. Baker 1980-6-8 1915 Humboldt Near Buck Flat. 1554 Comment
  UC673037  Chenopodium multifidum Joseph P. Tracy 1934-8-4 13552 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC451388  Chimaphila menziesii S. Matthews; M. Goering; R. James 1985-5-10 060 Humboldt Gray Falls Campground 240 Comment
  HSC45428  Chimaphila menziesii Thomas W. Nelson, Jane Nelson 1977-6-19 3501 Humboldt Along ridge N of pond above Alder Springs 1585 Comment
  HSC45430  Chimaphila menziesii Thomas W. Nelson, Jane Nelson Jul 1977 3565 Humboldt Along N side of ridge between Bear & Blanket Creeks 1494 Comment
  HSC41240  Chimaphila umbellata Brad Klipfel 1974-5-27 379 Humboldt Horse Mtn., NE face away from towers Comment
  HSC15440  Chlorogalum pomeridianum Elrid H. Spinas 1948-5-15 13 Humboldt Horse Mtn. Comment
  UCD110101  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1936-8-7 15117 Humboldt Trinity Summit. 2 miles southeast of Devil's Hole. 1584 Comment
  UC1222141  Cicendia quadrangularis Joseph P. Tracy 1951-5-6 19397 Humboldt Carlotta; flat by old Strong's District School House, 5 mi e of town 60 Comment
  HSC9490  Cinna latifolia D. E. Anderson 1965-9-5 4085 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  UCD59786  Cinna latifolia Joseph P. Tracy 1936-8-7 15087 Humboldt Trinity Summit, in fir woods, head of Little Hors-Linto Creek. 1371 Comment
  HSC48313  Circaea alpina subsp. pacifica Brad Klipfel 1973-8-3 301 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC56206  Circaea alpina subsp. pacifica G. L. Clifton, Griswold 1979-8-2 12198 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC62998  Circaea alpina subsp. pacifica David Wheeler 1979-5-13 106 Humboldt Redwood Valley, 1.0 mi. S of dump on other side of Redwood Creek from rd. Comment
  UC35383  Circaea alpina subsp. pacifica Harley P. Chandler June, 1901 1404 Humboldt North Coast Ranges, Klamath R. 365 Comment
  RSA66880  Circaea alpina subsp. pacifica P. A. Munz 1951-7-15 16552 Humboldt 5 miles N of Willow Creek, on Raccoon Creek 305 Comment
  UC144064  Circaea alpina subsp. pacifica Joseph P. Tracy Jun 27 1908-Jun 30 1908 2716 Humboldt opposite Buck Mt. (Van Duzen R. Valley); Northern Coast Ranges, Van Duzen R. Valley 762 Comment
  HSC5371  Cirsium arvense H. D. Sumner 1959-7-13 Humboldt Redwood Creek near Hwy. 299 305 Comment
  UC1565808  Cirsium douglasii var. douglasii R. Spellenberg 1990-7-10 10253 Humboldt 1 mi w of Horse Mountain (7.5 air mi sw of Willow Creek county road 7K100, 4.5 mi s of Berry Summit (on Calif. Hwy. 299), extreme e edge of county) 1219 Comment
  CDA1329  Cirsium occidentale var. candidissimum T. R. Haig 1960-6-21 s.n. Humboldt 7 mi. S of Garberville. Comment
  UC1223057  Cirsium occidentale var. candidissimum Joseph P. Tracy 1950-8-4 19257 Humboldt at head of Canoe Creek; Bull Creek State Park, Grasshopper Peak, Canoe Creek Comment
  JEPS59288  Cirsium occidentale var. candidissimum W. L. Jepson 1927-7-3 12371 Humboldt near Leggett Valley; South Fork Eel River 365 Comment
  JEPS59211  Cirsium occidentale var. venustum Lincoln Constance 1934-5-29 724 Humboldt near jctn South Fork of Eel River (Upper look prairie); Bull Creek Region, South Fork of Eel River, Upper Look Prai 365 Comment
  CAS-BOT-BC162634  Clarkia J. Ed. McClellan; Bonnie McClellan 1972-6-1 s.n. Humboldt Dune flat, Samoa Comment
  UC56304  Clarkia amoena Joseph Burtt Davy 1899-6-16 5562 Humboldt Alton Comment
  UC1222855  Clarkia amoena Joseph P. Tracy 1950-6-8 18751 Humboldt s of point Cape Mendocino; Devil's Gate 3 Comment
  CAS-BOT-BC160955  Clarkia amoena subsp. amoena Doris K. Kildale 1926-7-11 2367 Humboldt Wildcat Ridge near Mountain Glen Comment
  UC204004  Clarkia amoena subsp. amoena Joseph P. Tracy 1918-7-3 4989 Humboldt Wilder Ridge Northern Coast Ranges, Kings Peak Range 762 Comment
  RSA108238  Clarkia amoena subsp. huntiana Harlan Lewis, M. Lewis 1947-6-12 416 Humboldt Highway 36, 0.1 mile west of Humboldt - Trinity County line Comment
  UC20297  Clarkia gracilis subsp. gracilis Harley P. Chandler June, 1901 1363 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC58846  Clarkia gracilis subsp. gracilis Harley P. Chandler June, 1901 1327 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC183772  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1912-7-31 3907 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Burr Valley 1066 Comment
  SEINET12189257  Clarkia purpurea J. P. Tracy 1950-1 18809 Humboldt Fort Seward Ranch Comment
  UC183692  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1912-8-1 3957 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1196979  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1918-7-28 5091 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  HSC98618  Clarkia rhomboidea Cara Witte 2008-7-2 795 Humboldt National Forest Road 1; 5 miles south of intersection with 5N04. Before cattle guard crossing. 1406 Comment
  HSC100576  Clarkia rhomboidea Carl C. Marshall Jun 1886 293 Humboldt Pine Creek. Comment
  HSC47613  Claytonia perfoliata J. P. Smith 1977-4-23 9029 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  UC161026  Claytonia perfoliata subsp. perfoliata Joseph P. Tracy 1906-4-29 2429 Humboldt near Field's Landing (Humboldt Bay Region); Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC17697  Claytonia rubra subsp. depressa D. E. Anderson 1962-3-4 1926 Humboldt About 2 mi. S of Trinidad Comment
  UC161025  Claytonia rubra subsp. depressa Joseph P. Tracy 1904-5-1 2048 Humboldt near Bucksport; Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC74046  Claytonia saxosa Gail Newton 1980-7-11 1320 Humboldt Near Red Mtn. 1341 Comment
  CAS-BOT-BC443893  Claytonia sibirica Carl B. Wolf 1927-8-22 799 Humboldt Big Lagoon Comment
  CAS-BOT-BC443894  Claytonia sibirica Alice Eastwood; John Thomas Howell 1937-6-23 4783 Humboldt Near Dinsmore's Comment
  HSC100606  Claytonia sibirica Carl C. Marshall Mar 1886 150 Humboldt Everywhere. Comment
  HSC47503  Claytonia sibirica Sheila Logan 1978-4-10 30 Humboldt McKinleyville, foot of Hiller Ave. at Ocean Rd., near Pacific ocean and Mad River 46 Comment
  HSC70536  Claytonia sibirica Gail Newton 1980-7-20 1633 Humboldt Near Bell Swamps 1426 Comment
  SBBG1945  Claytonia sibirica H. and M. Dearing 1933-5-16 229 Humboldt Weott Comment
  UC1052461  Claytonia sibirica H. E. Parks Apr 1933 1421 Humboldt Spruce Cove; Trinidad Comment
  CAS-BOT-BC443889  Claytonia sibirica C. D. Duncan 1920-9-27 s.n. Humboldt Supply Creek Canon [Canyon] near Hoopa Comment
  HSC17723  Claytonia sibirica D. E. Anderson 1962-3-31 1956 Humboldt Coastal area of Prairie Creek State Park Comment
  RSA67628  Claytonia sibirica P. A. Munz 1951-7-15 16549 Humboldt 5 miles N of Willow Creek 305 Comment
  SFV18549  Claytonia sibirica L. Hagenauer 2002-4-28 54 Humboldt Blue Lake, Mad River Fish Hatchery. Along east-facing slope next to rock trail leading to Mad River. 16 Comment
  UC1223243  Claytonia sibirica Joseph P. Tracy 1950-7-2 18960 Humboldt 6 mi ne Hawkins Bar (Fern Spring); Trinity Summit Range, Happy Camp Mountain, Fern Spring 1280 Comment
  CAS-BOT-BC499340  Clintonia andrewsiana Doris K. Kildale 1926-3-26 1638 Humboldt Old Kneeland Road 60 Comment
  RSA66979  Clintonia andrewsiana E. K. Balls 1951-5-8 16512 Humboldt 3.5 miles south of Myers, Highway 101. Comment
  HSC102559  Clintonia uniflora M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1547 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC1197661  Clintonia uniflora Joseph P. Tracy 1939-5-30 16299 Humboldt opposite Buck Mountain (near Dinsmore's Ranch, Van Duzen River); Van Duzen River 762 Comment
  UCR139132  Coincya monensis Jim Belsher 1997-2-13 01 Humboldt Lot ESE of the Manila Community Services District sewage pump station 6 Comment
  HSC100286  Coincya monensis subsp. recurvata J. P. Smith, J. O. Sawyer 2011-4-24 13113 Humboldt Manila; Fence row along Lupin Rd. at the Manila Community Service District Office. 4 Comment
  UC885542  Collinsia grandiflora H. E. Parks and J. P. Tracy 1930-5-25 741 Humboldt Larrabee Valley 762 Comment
  UC727690  Collinsia grandiflora Milo S. Baker 1946-6-15 11481 Humboldt Horse Mtn Rd at Ski Lodge Ski Lodge 1219 Comment
  CHSC97959  Collinsia linearis Laurel Goldsmith; Wanda Naylor 2005-6-8 4 Humboldt 1.7 miles south of Hwy 299 on Titlow Hill Rd. UTM 0436141, 4525408. 980 Comment
  UC1196843  Collinsia linearis Joseph P. Tracy 1913-7-20 4370 Humboldt near summit of ridge between Redwood Creek and Willow Creek (Northern Coast Ranges); Northern Coast Ranges 1066 Comment
  HSC97483  Collinsia parviflora C. Witte 2007-5-10 18 Humboldt Along National Forest 1, near Kinsey Ridge. .2 miles south of intersection with 5N04. 1451 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
  HSC100661  Collinsia sparsiflora Carl C. Marshall May 1887 497 Humboldt Kneeland Prairie. Comment
  JEPS26356  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1916-5-2 4685 Humboldt garden Eureka; North Coast Ranges 762 Comment
  HSC74418  Collomia grandiflora Gail Newton 1980-8-10 2040 Humboldt Near Blake Mtn. 1707 Comment
  HSC45408  Collomia heterophylla Thomas W. Nelson, Jane Nelson 1977-6-19 3517 Humboldt SW of Alder Springs along Rd. 2S08 1463 Comment
  UC60862  Collomia heterophylla Harley P. Chandler June, 1901 1401 Humboldt Klamath River North Coast Ranges 213 Comment
  HSC97575  Collomia tinctoria Cara Witte 2007-5-29 138 Humboldt Along National Forest 1 near Kinsey Ridge. 1/2 mile south of cattle guard. 1369 Comment
  HSC32324  Collomia tracyi D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5663 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC73732  Collomia tracyi M. A. Baker 1980-7-19 3001 Humboldt Near Bret Hole. 1814 Comment
  UC14978  Corallorhiza maculata Mrs. M. H. Manning 1901-6-7 17 Humboldt near Hupa Comment
  HSC28082  Corallorhiza mertensiana J. D. Ackerman, A. Montalvo 1973-7-4 94 Humboldt Grogan Hole Rd, 18 mi. E of Hoopa Comment
  BLMAR204  Corallorhiza striata Jennifer Anthony-Wheeler 1996-7-9 204 Humboldt Pilot ridge. 1280 Comment
  HSC37701  Corallorhiza striata A. Montalvo, J. D. Ackerman 1976-5-16 756 Humboldt 0.25 mi. E of State Hwy. 299 on Chezem Rd., W of Redwood Creek Valley Comment
  HSC35454  Cordylanthus maritimus subsp. palustris J. D. Ackerman 1975-8-2 615 Humboldt Humboldt Bay: across from Murray Field (Eureka airport), near railroad tracks and Hwy 101. Comment
  JEPS55932  Cordylanthus maritimus subsp. palustris T. I. Chuang, L. R. Heckard and R. Bacigalupi 1968-7-3 6455 Humboldt Coastal Salt Marsh, ne edge Arcata Bay Comment
  JEPS6033  Cordylanthus maritimus subsp. palustris Joseph P. Tracy 1938-7-15 16064 Humboldt borders of salt marsh at Fields Landing, around Humboldt Bay Humboldt Bay; Northern Coast Region 3 Comment
  JEPS6785  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1938-8-14 16118 Humboldt South Fork of Trinity River (mountain slopes w of its mouth) 304 Comment
  JEPS6786  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1924-7-20 6735 Humboldt Koby Ranch, on road between Willow Creek (an Three Creeks); Koby Ranch 609 Comment
  UC1199414  Corethrogyne filaginifolia Joseph P. Tracy 1918-7-3 4995 Humboldt Shelter Cove 15 Comment
  UC630635  Cornus canadensis Joseph P. Tracy 1939-7-9 16321 Humboldt Bald Mountain. at Lake Prairie Bald Mountain 1066 Comment
  HSC97551  Cornus nuttallii Cara Witte 2007-5-31 159 Humboldt National Forest Road 1. 1 mile south of intersection with 5N04. 1551 Comment
  RSA46903  Cornus nuttallii Doris K. Kildale 1926-7-25 2434 Humboldt Breeland Bridge. 114 Comment
Read comments Jul 23 2012
  UCD117252  Cornus nuttallii Joseph P. Tracy 1950-10-7 19384 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC183572  Cornus sericea subsp. sericea Joseph P. Tracy 1912-10-20 4010 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC668289  Cornus sericea subsp. sericea Joseph P. Tracy 1937-7-24 15518 Humboldt Trinity Summit, Devil's Hole 1676 Comment
  RSA394654  Cornus sessilis Jane Turner, Francis M. Ball, B. L. Turner 1962-7-10 1144 Humboldt East Fork Willow Creek Forest Camp, Hwy 299 ca. 5 mi. W of Willow Creek in Six Rivers National Forest. 457 Comment
  UC502984  Cornus sessilis Joseph P. Tracy 1927-3-27 7857 Humboldt near S. Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  UC1011081  Corylus californica Emanuel Fritz 1941-10-4 8610 Humboldt Van Duzen River 91 Comment
  POM270388  Corylus cornuta var. californica Lyman Benson 1927-7-12 621 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; River: South Fork Eel. 61 Comment
  RSA134173  Corylus cornuta var. californica P. C. Everett, E. K. Balls 1959-10-24 23956 Humboldt 4.7 miles S from Bluff Creek, Hwy 96 from Orleans to Weitchpec. 122 Comment
  CAS-BOT-BC143494  Cotoneaster pannosus Peter F. Zika 2007-7-20 23324 Humboldt Lynda Lane near high school, S end of Big Lagoon, (NCo, North Coast) 20 Comment
  CHSC97985  Cotula coronopifolia C. DeLay 2002-5-11 12 Humboldt V St. Humboldt Bay Wildlife Refuge. 5 Comment
  SEINET3817856  Cotula coronopifolia Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-9 15319 Humboldt Clam beach, 15 miles north Eureka Comment
  UCSB9478  Cotula coronopifolia Parks, H. 1941-09 Humboldt Little River State Park Comment
  UCD130911  Cotula coronopifolia Malcolm A. Nobs; S. Galen Smith 1949-8-3 1163 Humboldt Eel River Valley, 1 mile south of Fields Landing. Comment
  JEPS49998  Crassula aquatica Joseph P. Tracy 1916-5-31 4705 Humboldt Alton Northern Coast Region, Alton 30 Comment
  SEINET200990  Crataegus douglasii J. P. Tracy 1931-4-26 9335 Humboldt Trinity River Valley at Willow Creek 152 Comment
  HSC57662  Crepis acuminata G. L. Clifton, Griswold 1979-7-25 10838 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  RSA201792  Crocidium multicaule Roman Gankin, W. R. Hildreth 1966-3-15 700 Humboldt On serpentine slopes of Klamath River canyon, State Highway 96, 4.6 miles north of Hoopa. Comment
  HSC91878  Crocosmia X crocosmiiflora E. Mackey Humboldt Patrick's Point State Park Comment
  SEINET10578683  Croton setiger Daniel K. Harder 1994-10-4 Harder 2495 Humboldt Ca. 6 km W/SW of Fort Seward along Fort Seward Road along middle ridge (near powerlines), collections from rock outcrops in cattle pasture with islands of redwoods and Umbellaria; near small spring in hillside. 570 Comment
  HSC12016  Croton setiger Wilbur Peterson 1970-10-31 95 Humboldt Scotia Bluffs, edge of Eel River Comment
  HSC41196  Cryptantha affinis Thomas W. Nelson 1977-7-4 3611 Humboldt Along road N of Alder Springs. 1524 Comment
  UC1222277  Cryptantha affinis Joseph P. Tracy 1950-7-1 18956 Humboldt Friday Ridge Comment
  UC1239664  Cryptantha leiocarpa Joseph P. Tracy 1904-7-4 2112 Humboldt Bucksport Northern Coast Region, Humboldt Bay Region 0 Comment
  UC1239654  Cryptantha torreyana Joseph P. Tracy 1921-5-30 5497 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC175786  Cryptantha torreyana J. P. Tracy 1903-5-22 1879 Humboldt Alder Point Bridge Eel River 152 Comment
  JEPS67872  Cryptantha torreyana Joseph P. Tracy 1921-6-19 5841 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UC1222270  Cryptantha torreyana Joseph P. Tracy 1946-6-23 17600 Humboldt se end Kneeland Prairie (near the Dan McBride place) 762 Comment
  HSC62883  Cuscuta salina J. M. DiTomaso 1979-5-20 1065 Humboldt Eureka Bay 3 mi. SW of Arcata on Samoa Rd. Comment
  UC153987  Cuscuta salina var. major Joseph P. Tracy 1901-8-7 1256 Humboldt Humboldt Bay Region Northern Coast Region 0 Comment
  HSC66829  Cycladenia humilis M. A. Baker 1980-7-24 3197 Humboldt Near Orleans Mtn. 1625 Comment
  HSC20640  Cymbalaria muralis A. D. Sajecki 1967-7-24 15 Humboldt Behind H.S.C. Campus Comment
  CAS-BOT-BC190371  Cynosurus cristatus Peter H. Raven; R. Snow 1958-7-21 13657 Humboldt 2.0 miles north of Cape Mendocino. Comment
  HSC97375  Cynosurus cristatus J. P. Smith 2005-6-11 12136 Humboldt Humboldt State University Campus, along B St. at back entrance to the Natural Resources Bldg. Comment
  HSC68940  Cynosurus echinatus Jacqueline Greenleaf 1980-8-12 326 Humboldt Near Pistol Spring. 1082 Comment
  SEINET11676331  Cynosurus echinatus L. K. Henry 1971-1 s.n. Humboldt along Rt. 36, 2 mi E of Dinsmore in Six Rivers National Forest Comment
  UCD141076  Cyperus eragrostis Gordon Leppig 1998-6-26 859 Humboldt McKinleyville, Hammond Trail, 100 m south of Knox Cove. 18 Comment
  HSC95388  Cyperus eragrostis Andrea Pickart 2002-7-9 176 Humboldt Bracut Marsh in zone between brackish and riparian 10 Comment
  UC668032  Cyperus eragrostis Joseph P. Tracy 1935-7-17 14099 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UC1103634  Cyperus strigosus Joseph P. Tracy 1920-8-15 5377 Humboldt Klamath R. at mouth of Bluff Creek; Northern Coast Ranges, Klamath R. 152 Comment
  HSC98728  Cystopteris fragilis Cara Witte 2007-7-20 563 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1460 Comment
  HSC89445  Cytisus scoparius P. A. Daly 1984-5-13 20 Humboldt Along trail at Trinidad Head 61 Comment
  HSC58694  Dactylis glomerata Overton, Butler 1979-8-2 12697 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC9530  Dactylis glomerata R. D. Zortman 1963-4-14 30 Humboldt 5.0 mi. NE of Arcata, off Warren Creek Road. 91 Comment
  HSC9532  Dactylis glomerata N. R. Waite 1965-5-19 39 Humboldt W edge of Humboldt State University campus. Comment
  UC184230  Dactylis glomerata Joseph P. Tracy 1912-6-16 3696 Humboldt near Fields Landing; Northern Coast Region, region about Humboldt Bay 0 Comment
  CAS-BOT-BC189736  Danthonia californica Joseph P. Tracy 1930-6-21 8772 Humboldt Northern Coast Ranges. Larrabee Valley. 701 Comment
  CAS-BOT-BC189738  Danthonia californica David D. Keck 1944-7-11 5493 Humboldt 3 miles northeast of Capetown. 152 Comment
  CAS-BOT-BC189743  Danthonia californica Joseph P. Tracy 1935-7-23 14137 Humboldt Trinity Summit. Corral Prairie. 1584 Comment
  CAS-BOT-BC189744  Danthonia californica Joseph P. Tracy 1932-7-10 10392 Humboldt Trinity Summit. Klamath Mountains. Corral Prairie. 1524 Comment
  HSC9552  Danthonia californica J. P. Tracy 1927-7-4 8234 Humboldt Lone-Star Creek, Iagua. 610 Comment
  UC37946  Danthonia californica Harley P. Chandler May, 1901 1239 Humboldt North Coast Ranges; Redwood Belt 91 Comment
  BLMAR38  Danthonia californica Brad Barr 1982-6-21 38 Humboldt King range, hidden valley enclosure Comment
  UC526691  Danthonia unispicata Joseph P. Tracy 1926-6-20 7611 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  RSA20722  Darlingtonia californica Carl B. Wolf 1937-9-11 9318 Humboldt Redwood Hwy 3 miles north of Orick (Davison's Ranch on Prairie Creek) 61 Comment
  CAS-BOT-BC420362  Darmera peltata Joseph P. Tracy 1933-6-7 12517 Humboldt Blue Slide, on Van Duzen River 91 Comment
  HSC49087  Daucus carota Patricia Shesgreen 1978-8-8 133 Humboldt 7th & A St., Arcata Comment
  UC673050  Daucus carota Joseph P. Tracy 1940-10-17 16761 Humboldt near Dyerville (South Fork Station); South Fork Station 48 Comment
  HSC38938  Daucus pusillus Linda M. Barker 1976-5-13 1486 Humboldt 3 mi. W of Arcata. Comment
  UC1197351  Daucus pusillus J. P. Tracy 1899-7-22 275 Humboldt Eureka Comment
  HSC104060  Daucus pusillus M. F. Norman 2015-4-11 13 Humboldt Arcata, Ma-le'l Dunes Comment
  UC201613  Delphinium decorum subsp. tracyi Joseph P. Tracy 1918-5-28 4941 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC27069  Delphinium decorum subsp. tracyi D. E. Anderson 1965-4-24 3533 Humboldt Along Titlow Hill Rd. Comment
  HSC97177  Delphinium decorum subsp. tracyi Benjamin Hart, Erin Lonergan 2007-6-4 2 Humboldt Grouse Mtn., Coldsprings Camp, 6.5 mi. up Titlow Hill Rd. 1372 Comment
  POM126169  Delphinium decorum subsp. tracyi Joseph P. Tracy 1922-6-5 6082 Humboldt Head of S Yager Creek. 762 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
  HSC56226  Delphinium glaucum G. L. Clifton, Griswold 1979-8-2 12268 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC24965  Delphinium hesperium R. Spellenberg 1965-6-14 1139 Humboldt 13 mi. W of Willow Creek along Hwy. 299 Comment
  HSC100901  Delphinium menziesii Carl C. Marshall Apr 1887 380 Humboldt Hoopa Valley. Comment
  HSC48946  Delphinium nudicaule M. A. Baker 1979-5-1 700 Humboldt Along old bed of Bluff Creek Comment
  HSC98171  Delphinium nudicaule Jack Rockwell 1962-5-12 79 Humboldt Near CDF along creek 198 Comment
  HSC32304  Delphinium nuttallianum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5650 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC32935  Delphinium nuttallianum Thomas W. Nelson 1973-5-30 972 Humboldt Humboldt/Trinity Co. line, Mt. Lassic 1790 Comment
  UC249645  Delphinium nuttallianum Joseph P. Tracy 1922-4-30 6029 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC184160  Deschampsia cespitosa subsp. beringensis Joseph P. Tracy 1912-6-16 3700 Humboldt edge of salt marsh at Hookton; Northern Coast Region, area about Humboldt Bay 0 Comment
  CAS-BOT-BC194294  Deschampsia cespitosa subsp. cespitosa H. S. Yates 1936-6-16 5677 Humboldt 1 mile northeast of Samoa 3 Comment
  CAS-BOT-BC194297  Deschampsia cespitosa subsp. cespitosa Malcom A. Nobs; S. Galen Smith 1949-8-3 1167 Humboldt Borders of irrigation ditch, 1 mile south of Fields Landing, Eel River Valley Comment
  UC249800  Deschampsia cespitosa subsp. cespitosa Joseph P. Tracy 1923-6-19 6301 Humboldt Wilder Ridge near Kings Peak; Northern Coast Ranges, Wilder Ridge 762 Comment
  HSC99038  Deschampsia elongata Cara Witte 2007-6-13 263 Humboldt Along Forest Service Road 5N04. Near spring by Grouse Mountain. 1583 Comment
  POM210034  Deschampsia elongata H. E. Parks 1931-05 3646 a Humboldt Big Lagoon Comment
  UCD63596  Deschampsia elongata Elizabeth Wilson 1936-6-18 Humboldt From Garberville north into Holbrook Grove. Comment
  UC1225761  Descurainia incisa subsp. incisa Joseph P. Tracy 1947-8-24 17921 Humboldt near Box Camp (along trail to Water Dog Lakes); Trinity Summit 1676 Comment
  HSC76359  Dicentra formosa Denis Kearns 1981-7-8 164 Humboldt Near Bluff Creek 622 Comment
  UC1196304  Dicentra formosa Joseph P. Tracy 1939-7-9 16329 Humboldt Snow Camp 1402 Comment
  HSC72685  Dicentra formosa subsp. oregana J. P. Smith 1977-7-3 9267 Humboldt Onion Lake Comment
  SEINET7293093 Image available Dichanthelium acuminatum subsp. fasciculatum Joseph P. Tracy 1938-1 16172 Humboldt Bald Mountain; at 'Lake Prairie Comment
  SEINET200695  Dichelostemma X venustum Joseph P. Tracy 1923-7-4 6524 Humboldt Valley of South Yager Creek 762 Comment
  JEPS5680  Dichelostemma X venustum Milo S. Baker 1923-7-20 29 Humboldt Head of South Fork of Yager Creek Comment
  HSC98708  Dichelostemma ida-maia Cara Witte 2007-6-14 274 Humboldt Along National Forest 1. Near Kinsey Ridge. 2 miles north of intersection with 4N06. 1319 Comment
  SEINET202731  Dichelostemma ida-maia Joseph P. Tracy, A. H. Murphy 1951-6-26 19568 Humboldt Vicinity of Twin Lakes and Snow Camp. Comment
  HSC44728  Dichelostemma ida-maia Maralyn O'Meara 1972-6-8 79 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  HSC48614  Dichelostemma ida-maia Mark Flippo 1978-5-22 67 Humboldt Big Hill Rd. Comment
  POM208998  Dichelostemma ida-maia Lincoln Constance 1934-5-23 604 Humboldt Look Prairie, Bull Creek Watershed, Humboldt Redwood Park 366 Comment
  SEINET12050367  Dichelostemma ida-maia F. H. Utech 1988-1 88 -277 Humboldt 1.5 mi E of Bridgeville on CA 36, Mile Marker 23.0 150 Comment
  SEINET3885618  Dichelostemma ida-maia D. E. Bright 1962-6-12 285 Humboldt Roadside, along Highway #96, 2 miles northeast of Orleans.; 0 Comment
  UC1198172  Dichelostemma multiflorum Joseph P. Tracy 1939-4-29 16233 Humboldt near Weitchpec (along Trinity River); Trinity River 121 Comment
  UC562292  Dichondra donelliana Joseph P. Tracy 1932-3-20 9785 Humboldt Trinidad; slopes facing ocean 3 Comment
  UC1103230  Digitaria sanguinalis Joseph P. Tracy 1948-10-20 18254 Humboldt Eureka 30 Comment
  CAS-BOT-BC153239  Diplacus kelloggii Doris K. Kildale 1927-5-20 3228 Humboldt Bug Creek 792 Comment
  HSC62879  Dipsacus fullonum J. M. DiTomaso 1979-5-20 1042 Humboldt Arcata, Hwy. 101 at Guintoli Rd. Comment
  UC275553  Disporum hookeri Joseph P. Tracy 1924-5-4 6670 Humboldt Grizzly Creek on Van Duzen River Grizzly Creek; Northern Coast Ranges, Van Duzen River, Grizzly Creek 91 Comment
  SEINET3885742  Disporum smithii H. E. Parks, S. T. Parks 1952-1 24452 Humboldt Spruce Cove, Trinidad.; 0 61 Comment
  JEPS55589  Disporum smithii W. Roderick 1961-6-28 Humboldt 5.4 road mi ne of Weitchpec (Klamath River); Klamath River Comment
  CAS-BOT-BC208660  Distichlis spicata Joseph P. Tracy 1933-8-22 12989 Humboldt Mouth of Eel River 3 Comment
  HSC93509  Distichlis spicata Gordon Leppig, Sylvia Leppig 1998-9-17 1101 Humboldt Arcata Marsh and Wildlife Sanctuary, W of railroad trestle. Comment
  UC38073  Distichlis spicata Joseph Burtt Davy and Walter C. Blasdale 1899-6-17 5604 Humboldt Arcata Comment
  JEPS14670  Dodecatheon alpinum Joseph P. Tracy 1932-7-14 10565 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  HSC17858  Dodecatheon hendersonii D. E. Anderson 1965-5-1 3573 Humboldt Along Bluff Creek road about 2.5 mi. from its junction with Hwy. 96 Comment
  SEINET201053 Image available Dodecatheon jeffreyi Joseph P. Tracy 1932-7-17 10669 Humboldt Trinity Summit; ridges East of Corral Prarie. 1829 Comment
  UC1245397  Draperia systyla Joseph P. Tracy 1935-7-31 866 Humboldt Devil's Back Bone near Gora's Gap 1432 Comment
  RSA0011677  Drosera rotundifolia C. B. Wolf 1927-8-22 778 Humboldt Big Lagoon. Comment
  HSC44528  Drymocallis lactea var. lactea Brad Klipfel 1973-7-1 136 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC76237  Drymocallis lactea var. lactea Teresa Prendusi 1981-7-21 271 Humboldt Near Whiteys Peak 1646 Comment
  HSC6461  Dudleya farinosa D. E. Anderson 1961-9-2 1773 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  SEINET5227018 Image available Dysphania botrys Unknown 2002-8-17 81 Humboldt On gravel bar in Eel River, 10 miles S of Garberville onHwy 101, at Benbow Drive. Comment
  UC183454  Echinochloa crus-galli Joseph P. Tracy 1900-11-1 973 Humboldt Eureka; Northern Coast Region 0 Comment
  NY242008  Elatine rubella A. Tiehm 1987-8-3 11474 Humboldt Pine Forest Range, Onion Creek Reservoir northwest of Blue Lake and Duffer Peak at the north end of the range. 2151.9 Comment
Read comments Feb 25 2012
  CAS-BOT-BC113645  Eleocharis acicularis Joseph Prince Tracy 1937-8-12 15626 Humboldt Bald Mountain at Lake Prairie Edge of bog. 1066 Comment
  RSA246898  Eleocharis acicularis var. gracilescens Robert F. Thorne, Percy C. Everett 1965-8-9 35326 Humboldt Clam Beach County Park: along highway. 3 Comment
  CHSC85061  Eleocharis pachycarpa L. P. Janeway 2003-7-28 7934 Humboldt North Coast. At east edge of Big Lagoon 0.8 km south of the mouth of Tom Creek. 3 Comment
  JEPS19331  Eleocharis pachycarpa Joseph P. Tracy 1935-6-8 13947 Humboldt along coast in front of Stone Lagoon (Dry Lagoon); Dry Lagoon 3 Comment
  UC303024  Eleocharis parishii Joseph P. Tracy 1926-8-12 7767 Humboldt near S fork Trinity River Valley; Northern Coast Ranges 182 Comment
  UCD61426  Elymus elymoides A. H. Murphy 1951-6-25 75 Humboldt About 1 mile west of Snow Camp Mtn. ca. 8 miles ene of Kneeland. Comment
  UC526797  Elymus glaucus Joseph P. Tracy 1925-7-5 7167 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UCD61906  Elymus glaucus R. Tofsrud 1948-9-1 Humboldt Road junction near summit of Horse Mt. 1463 Comment
  SEINET11683186  Elymus glaucus K. S. Erdman 1970-1 4849 Humboldt Redwood National Park, Redwood Creek, about 2-3 mi above the road end, near McArthur & Elam Creeks Comment
  CAS-BOT-BC203474  Elymus glaucus subsp. glaucus Harold E. Parks; Joseph P. Tracy 1934-6-14 11026 Humboldt Horse Mt. 1371 Comment
  CAS-BOT-BC203477  Elymus glaucus subsp. glaucus Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  CAS-BOT-BC203481  Elymus glaucus subsp. glaucus Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  SEINET200645  Elymus glaucus subsp. glaucus J. P. Tracy 1936-6-9 14889 Humboldt Bear River Ridge 457 Comment
  UC523866  Elymus multisetus Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1346 Humboldt near bridge on Trinity Highway; Floodplain of Trinity River 152 Comment
  UCD62495  Elymus multisetus A. H. Murphy 1951-6-13 64 Humboldt Along Eel River at Fort Seward. Comment
  SD38379  Epilobium angustifolium Edith A. Purer 1932-7-27 4148 Humboldt Comment
  HSC32569  Epilobium brachycarpum Thomas W. Nelson 1973-9-3 1125 Humboldt McKeown Ranch N of Dinsmore, rocky alluvium along Mad River Comment
  UC1222844  Epilobium brachycarpum Joseph P. Tracy 1950-9-10 19355 Humboldt Bear River Ridge 609 Comment
  UC562421  Epilobium brachycarpum Joseph P. Tracy 1933-8-6 12942 Humboldt French Camp Ridge 1066 Comment
  HSC41821  Epilobium canum subsp. latifolium Thomas W. Nelson, Jane P. Nelson 1977-8-6 3722 Humboldt Between Blanket Creek and Bear Creek just below Blanket Rock 1494 Comment
  HSC102032  Epilobium ciliatum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 935 Humboldt Patterson Meadows 1555 Comment
  HSC54011  Epilobium ciliatum subsp. ciliatum Griswold, Butler 1979-7-12 7141 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC146138  Epilobium ciliatum subsp. ciliatum J. P. Tracy 1909-8-15 3075 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC43272  Epilobium ciliatum subsp. ciliatum R. Sutherland 1976-8-6 16 .6876 Humboldt 223 Comment
  POM271496  Epilobium ciliatum subsp. ciliatum Lyman Benson 1929-7-14 1804 Humboldt S. Fork Eel River, Weott Ranger Station Comment
  POM89782  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1919-9-18 5225 Humboldt Northern Coast Ranges: Trinity Summit 1890 Comment
  HSC90695  Epilobium ciliatum subsp. watsonii Gail Newton 1983-6-5 3556 Humboldt Elk River Wildlife Area, Eureka Comment
  SEINET9067301 Image available Epilobium ciliatum subsp. watsonii H. E. Parks, S. T. Parks 1937-1 24050 Humboldt Spruce Cove, Trinidad 64 Comment
  UC146120  Epilobium ciliatum subsp. watsonii Joseph P. Tracy 1909-9-19 3097 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach) Comment
  JEPS31516  Epilobium densiflorum Joseph P. Tracy 1934-7-9 13352 Humboldt bed of dry pond Dobbyn Creek 152 Comment
  JEPS31503  Epilobium densiflorum Joseph P. Tracy 1938-7-5 16003 Humboldt wet place in flat by old Strong's District School house (5 mi e of town); Carlotta 45 Comment
  RSA167260  Epilobium glaberrimum subsp. glaberrimum Joseph P. Tracy 1950-8-7 19272 Humboldt On trail between Box Camp and Croghan [Groghan] Hole, 2 miles east of Box Camp. Trinity Summit Comment
  UC205637  Epilobium hallianum Joseph P. Tracy 1919-9-18 5234 Humboldt Trinity Summit (Northern Coast Ranges) Comment
  UC562510  Epilobium hallianum Joseph P. Tracy 1933-7-25 12853 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  POM160843  Epilobium hallianum Joseph P. Tracy 1923-5-13 6204 Humboldt North Coast Ranges: Bridgeville. 229 Comment
  HSC55085  Epilobium hornemannii G. L. Clifton, Griswold 1979-7-31 11749 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC98676  Epilobium hornemannii subsp. hornemannii Cara Witte 2007-6-21 324 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1430 Comment
  HSC70924  Epilobium minutum R. York 1980-5-18 574 Humboldt Near Black Mtn 792 Comment
  UC535752  Epilobium septentrionale Eleanor Armstrong 1934-8-15 1145 Humboldt Richardson Grove 121 Comment
  BLMAR297  Epipactis gigantea Jennifer Anthony-Wheeler 2002-7-23 297 Humboldt Headwaters Forest Reserve, growing in a pond with large floating rafts of logs 426 Comment
  UC725499  Epipactis gigantea A. A. Heller 1923-7-10 13790 Humboldt river between Scotia and Pepperwood; Eel River Comment
  CAS-BOT-BC57105  Equisetum X ferrissii Henry M. Pollard 1946-8-27 s.n. Humboldt South side of Klamath River near Boyce Creek, Orleans region Comment
  HSC60046  Equisetum arvense M. A. Baker 1978-5-6 508 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  UC1239792  Equisetum laevigatum H. E. Parks and Joseph P. Tracy 1932-5-11 9966 Humboldt along R.R. Samoa; Northern Coast Ranges 6 Comment
  CAS-BOT-BC57795  Equisetum telmateia Doris K. Kildale 1928-2-19 4274 Humboldt Metropolitan. Comment
  UC667933  Equisetum telmateia subsp. braunii Joseph P. Tracy 1937-6-26 15361 Humboldt at Willow Creek Willow Creek; Trinity River Valley 152 Comment
  HSC79438  Equisetum telmateia subsp. braunii Kenneth Clark 1980-6-14 699 Humboldt Shelter Cove, W slope above Dead Man's Gulch 91 Comment
  POM281805  Equisetum telmateia var. braunii Lyman Benson 1928-7-9 416 Humboldt Weott Ranger Station. Seaward N Coast Mtn range, S Fork Eel River. 61 Comment
  RSA44367  Eragrostis mexicana subsp. virescens Henry M. Pollard 1947-8-7 1949 Humboldt Klamath River sandbar near Orleans Comment
  UC1145099  Eragrostis mexicana subsp. virescens Joseph P. Tracy 1950-9-22 19372 Humboldt 8 mi below Orleans; Klamath River near Slate Creek 121 Comment
  RSA20844  Erechtites glomeratus C. B. Wolf 1937-6-18 8884 Humboldt Table Bluff between Humboldt Bay and Eel River 30 Comment
  POM51468  Erechtites minimus Joseph P. Tracy 1918-7-28 5088 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay. Comment
  UC581744  Erigeron aliceae Joseph P. Tracy 1930-7-18 9035 Humboldt South Fork Mountain South Fork Mountain (near McKay Camp) 1676 Comment
  CAS-BOT-BC296111  Erigeron foliosus var. confinis Joseph P. Tracy 1935-6-23 13967 Humboldt French Camp Ridge 1066 Comment
  RSA12520  Erigeron foliosus var. confinis C. B. Wolf 1934-7-3 5916 Humboldt 21 mi. from Orick on Weitchpec Rd. Comment
  CAS-BOT-BC300679  Erigeron foliosus var. mendocinus Carl Purdy 1938-1-1 s.n. Humboldt Van Duzen River Comment
  UC175187  Erigeron foliosus var. mendocinus Joseph P. Tracy 1913-6-10 4082 Humboldt near Grizzly Gulch (bluffs along Van Duzen River); Northern Coast Ranges, Van Duzen River 152 Comment
  HSC59670  Erigeron glaucus George Kirn 1977-9-27 Humboldt 0.5 mi. NW of Samoa 8 Comment
  HSC90479  Erigeron glaucus Jean Hanson 1980-8-28 121 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka. W end of island between dikes. Comment
  HSC71370  Erigeron philadelphicus J. P. Smith 1973-5-26 6843 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  CAS-BOT-BC214576  Erigeron philadelphicus Kenneth Clark 1980-6-14 697 Humboldt Shelter Cove. North fork Dead Man's Gulch 121 Comment
  PASA1734  Erigeron philadelphicus Frank W. Peirson 1923-7-9 Humboldt State Park and Auto Camp on the Eel Riv. Comment
  UCSB30600  Erigeron philadelphicus Edwards, David 1974-7-26 Humboldt Dirt road above E. bank of Mad River, at this junction with Puter Creek, ca. 2 mi. SW. of Korbel 27 Comment
  SDSU3945  Erigeron philadelphicus var. philadelphicus D. F. Howe 1963-7-8 3621 Humboldt 8.2 miles west of Bridgeville on Cal. 36, Van Duzen River. 91 Comment
  UC581734  Erigeron philadelphicus var. philadelphicus Joseph P. Tracy 1936-6-17 1463 Humboldt on nw slope Buck Mountain; Northern Coast Ranges, , Burr Valley 1066 Comment
  UCD132041  Erigeron philadelphicus var. philadelphicus P. B. Kennedy 1929-6-12 s.n. Humboldt Eureka. Comment
  JEPS22258  Erigeron robustior Milo S. Baker 1923-7-29 134 Humboldt Yager Creek; mt. on s side of camp, region of type locality 792 Comment
  CAS-BOT-BC259156  Eriogonum latifolium Ira L. Wiggins 1930-7-11 4680 Humboldt Near Samoa Comment
  SBBG28255  Eriogonum latifolium H. E. Parks -Aug-1941 24198 Humboldt Little River Comment
  UC418996  Eriogonum latifolium H. E. Parks 1924-8-5 2454 Humboldt sand dunes, Little River lagoon Little River lagoon Comment
  RSA296732  Eriogonum latifolium J. P. Smith, Thomas W. Nelson 1977-6-30 9209 Humboldt Samoa Peninsula just east of the drag strip. Comment
  UC1198101  Eriogonum luteolum var. luteolum Joseph P. Tracy 1919-9-13 5192 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  UC775037  Eriogonum nudum var. nudum Carl B. Wolf 1937-8-13 9231 Humboldt 8 mi e on New Road towards Trinity Summit Hoopa Valley; North Coast Range 1219 Comment
  HSC97941  Eriogonum nudum var. oblongifolium Cara Witte 2007-7-2 394 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1406 Comment
  CDA22632  Eriogonum nudum var. oblongifolium T. R. Haig 1960-6-19 Humboldt Kneeland School. 0 Comment
  UC14096  Eriogonum roseum Chesnut and Drew 1888-7-25 Humboldt Hy-Am-Pum Comment
  UC672894  Eriogonum umbellatum var. argus Joseph P. Tracy 1935-7-23 14133 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  HSC39231  Eriogonum umbellatum var. nelsoniorum D. E. Anderson, J. P. Smith 1971-7-6 - 1281 Humboldt Horse Mtn. Comment
  UC1198156  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy Jul 16 1930-Jul 19 1930 8949 Humboldt near Blake Lookout (along summit of South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1706 Comment
  HSC43081  Eriogonum umbellatum var. nelsoniorum Brad Klipfel 1973-7-31 261 Humboldt N Trinity Mtn. 1860 Comment
  SEINET5332487 Image available Eriogonum umbellatum var. nelsoniorum J. 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 round and 9.3 air miles westof Hyampom, 1295 Comment
  HSC31448  Eriophorum crinigerum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5566 Humboldt Lower slopes of Black Lassic near Trinity Co. line 1585 Comment
  CAS-BOT-BC301019  Eriophyllum lanatum var. achilleoides M. S. Jussel 1931-5-2 122 Humboldt 6 miles from Garberville Comment
  CAS-BOT-BC301178  Eriophyllum lanatum var. arachnoideum Doris K. Kildale 1927-7-10 3726 Humboldt Gans Prairie - Bald Hills road Comment
  UC176857  Eriophyllum lanatum var. arachnoideum Joseph P. Tracy 1912-7-21 3768 Humboldt Alton Northern Coast Region of California Comment
  CAS-BOT-BC302012  Eriophyllum staechadifolium Ynez Whilton Winblad 1941-6-27 s.n. Humboldt Between Eureka and Orick Comment
  HSC100406  Eritrichium torreyi Carl C. Marshall 1885-1 5 Humboldt No data. Comment
  UC180182  Erodium botrys Joseph P. Tracy 1914-5-14 4462 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  SEINET13944098 Image available Eryngium aristulatum Joseph P. Tracy 1912-1 3777 & 4001 Humboldt Alton, Altitude ca 100 to 300 ft 91 Comment
  CAS-BOT-BC41570  Erysimum capitatum Doris K. Kildale 1926-3-21 1578 Humboldt Knuland Prairie. 853 Comment
  UC161542  Erysimum capitatum Joseph P. Tracy July 1908 2904 Humboldt ridge between Van Duzen and Mad Rivers near Low Gap (Humboldt and Trinity Counties); Northern Coast Ranges 914 Comment
  CAS-BOT-BC54919  Erysimum menziesii Joseph P. Tracy 1904-4-24 2031 Humboldt Ocean Beach at Humboldt Bay. Comment
  CAS-BOT-BC383156  Erythranthe guttata David B. Lowry 2005-5-16 KLM Humboldt In Klamath River Valley, roadside Hwy. 96 between Weitchpec and Orleans 227 Comment
  SEINET13723796 Image available Erythranthe moschata Joseph P. Tracy 1908-1 2697 Humboldt Valley of Van Duzen River; opposite Buck Mountain 762 Comment
  HSC45265  Erythronium californicum M. Alcasas 1978-6-3 114 Humboldt Titlow Hill Rd., 1.6 mi. from Hwy. 299 1479 Comment
  UC1005669  Erythronium californicum Frank W. Gould 1939-5-30 826 Humboldt top Horse Mountain 1219 Comment
  SEINET3992426  Erythronium grandiflorum var. pallidum Unknown 1933-7-16 12774 Humboldt South Fork Mountain, near McKay Camp 1676 Comment
  RSA256579  Erythronium oregonum J. D. Ackerman 1975-5-3 437 Humboldt Ca. 3.5 miles east of Chezem Road and Highway 299 intersection west of Redwood Creek Comment
  JEPS61876  Erythronium revolutum Joseph P. Tracy 1918-5-1 4896 Humboldt Ashfield Butte Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC146200  Erythronium revolutum Joseph P. Tracy 1908-6-9 2661 Humboldt Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC666963  Erythronium revolutum Joseph P. Tracy 1927-5-15 8064 Humboldt woods at head Pine Creek; Hoopa Mountain 1066 Comment
  HSC104354  Erythronium revolutum James Regan, Humboldt Redwood Co., LLC 2007-4-30 16 Humboldt Larabee Creek area, east of Redcrest 805 Comment
  CAS-BOT-BC403034  Eschscholzia californica Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC403037  Eschscholzia californica Joseph P. Tracy 1937-7-29 15598 Humboldt South Fork Mountain. West slope near top, at Hyampom Trail 1676 Comment
  HSC97441  Eschscholzia californica Ivy Watson 2008-10-5 45 Humboldt Blue Lake, 500 m upstream of the Hatchery Rd. bridge. 22 Comment
  HSC69578  Eucalyptus globulus R. Kalal 1980-6-1 7 Humboldt City of Arcata, along F street between 12th and 13th streets. 37 Comment
  HSC58813  Eucephalus ledophyllus G. L. Clifton, Griswold 1979-8-1 12049 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  JEPS20476  Euchiton sphaericus Joseph P. Tracy 1936-8-24 15176 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC1198984  Euphorbia crenulata Joseph P. Tracy 1926-4-11 7409 Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  UC183764  Euphorbia crenulata Joseph P. Tracy 1913-6-20 4245 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Range, Valley of Van Duzen River 762 Comment
  UC202856  Euthamia occidentalis Chesnut and Drew 1888-7-21 Humboldt South Fork Mt. Comment
  CAS-BOT-BC458291  Euthamia occidentalis Carl D. Duncan 1920-9-22 s.n. Humboldt Bank of Trinity River, Hoopa Valley Comment
  SEINET4206010  Fallopia convolvulus Chesnut, Drew 1888-7-25 s.n. Humboldt Grouse Creek Comment
  CAS-BOT-BC278180  Festuca W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek & Eel River Comment
  UC552675  Festuca elmeri Joseph P. Tracy 1935-5-25 13877 Humboldt Fort Seward 106 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
  HSC63851  Festuca occidentalis M. A. Baker 1979-6-29 963 Humboldt Hopkin's Creek. 750 Comment
  HSC90039  Festuca occidentalis Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-28 66 Humboldt Hwy. 299, 4 mi. W of Burnt Ranch 259 Comment
  HSC99020  Festuca occidentalis Cara Witte 2007-6-7 227 Humboldt Along National Forest 1 on Kinsey Ridge. 1 mile south of intersection with 4N06. 1263 Comment
  CAS-BOT-BC278968  Festuca rubra Joseph P. Tracy 1911-7-16 3531 Humboldt At Eureka 60 Comment
  HSC103065  Festuca rubra J. P. Smith 2014-6-4 13867 Humboldt Big Lagoon County Park 5 Comment
  POM126116  Festuca rubra Joseph P. Tracy 1906-6-24 2511 Humboldt South slope of Humboldt Hill, near Field's Landing. Region about Humboldt Bay. 0 Comment
  UC1132021  Festuca rubra H. S. Yates 1936-6-17 5688 Humboldt 1 mi w Bridgeville; Dyerville Quad. 182 Comment
  UCD66392  Festuca rubra Joseph P. Tracy 1938-7-4 15986 Humboldt Valley of South Yager Creek. 762 Comment
  SEINET3827552 Image available Festuca subuliflora T. R. Van Devender, R. K. Van Devender 1990-1 90 -102 Humboldt Cal-Barrel Road in Redwood National Forest; dense old-growth redwood forest. Comment
  UC492172  Fragaria Joseph P. Tracy 1932-7-15 10578 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  CHSC13615  Fragaria chiloensis C. Eiser 1974-4-10 22 Humboldt Along coast, between Orick and Prairie Creek. Redwoods State Park, on bluffs overlooking ocean. Comment
  HSC33746  Fragaria chiloensis A. Montalvo 1975-5-24 285 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  RSA183571  Fragaria chiloensis R. I. Bonn 1965-3-12 5 Humboldt 4 miles W of Arcata on Lanphere road. Comment
  HSC36627  Fragaria vesca A. M. Montalvo, J. D. Ackerman 1973-4-29 78 Humboldt 2 mi. NE of Kneeland on rd. to Maple Creek 457 Comment
  HSC73774  Fragaria vesca M. A. Baker 1980-6-7 1779 Humboldt Near Brush Mtn. 1128 Comment
  UC1198723  Fragaria vesca Joseph P. Tracy 1935-7-25 14237 Humboldt McKay Prairie; Trinity Summit 1584 Comment
  HSC18614  Fragaria vesca N. D. Dennis 1965-5-3 38 Humboldt Hwy. 299 on Humboldt Co. line Comment
  UC1949135  Fragaria vesca subsp. californica Barbara Ertter with Thomas J. Delendick 1987-5-16 6933 Humboldt 3 mi E of Berry Summit on Hwy 299, ca 20 airmiles E of Arcata; on S side of road above Willow Creek 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
  HSC41295  Frangula californica subsp. occidentalis Brad Klipfel 1974-7-27 495 Humboldt Horse Mtn. Comment
  CAS-BOT-BC59966  Frangula purshiana H. E. McMinn 1922-8-5 347 Humboldt Along Van Duzen River Comment
  CAS-BOT-BC59970  Frangula purshiana L. R. Abrams 1922-6-25 8258 Humboldt N. of Mad River near Arcata. Comment
  HSC31511  Frangula purshiana Steve Selva, Roger Jensen 1974-8-21 29 Humboldt Redwood Forest across from Hwy. 101 entrance to Patrick's Point State Park Comment
  HSC63001  Frangula purshiana David Wheeler 1979-5-17 114 Humboldt Stagecoach Rd., 1 mi. from the Trinidad Post Office Comment
  UCD112825  Frangula purshiana Roman Gankin 1965-8-6 549 Humboldt on Matolle Road, 7.4 miles northeast of Capetown. Comment
  HSC95924  Frangula purshiana subsp. purshiana Will Ferrand 2001-6-17 18 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  HSC99392  Frangula purshiana subsp. purshiana K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 41 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CAS-BOT-BC217699  Fraxinus latifolia Doris K. Kildale 1927-5-15 3293 Humboldt Petrolia, Mattole River Comment
  HSC15537  Fritillaria affinis D. E. Anderson 1965-5-8 3635 Humboldt 4 mi. E of Berry Summit along Hwy. 299 Comment
  HSC15550  Fritillaria affinis Greg Bos 1965-5-15 275 Humboldt Berry Summit near Hwy. 299 793 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
  UC1197625  Fritillaria affinis Joseph P. Tracy 1933-6-13 12575 Humboldt Hoopa Mountain, near summit on road from Hoopa westward to Bair's Hoopa Mountain 1066 Comment
  CAS-BOT-BC136026  Fritillaria affinis R. C. Barneby 1954-5-19 11571 Humboldt Forested ridge, 13 miles w. of Fort Seward 640 Comment
  RSA90637  Fritillaria affinis Ralph Lewis 1936-4-10 s.n. Humboldt Along Redwood Highway, first bridge south of Cummings Comment
  SEINET12050370  Fritillaria affinis F. H. Utech 1988-1 88 -285 Humboldt along CA 36 from Bridgeville enroute to Dinsmore, Mile Marker 42.00, bluff above Van Duzen River 800 Comment
  UC1197638  Fritillaria atropurpurea Joseph P. Tracy 1935-7-30 14375 Humboldt Salmon Summit, just below the top Salmon Summit 2072 Comment
  RSA249430  Galium ambiguum D. E. Anderson, T. Nelson, S. Dowty 1972-6-14 5596 Humboldt Mt Lassic and two smaller peaks to immediate E. 1768 Comment
  HSC79511  Galium aparine Kenneth Clark 1980-6-14 695 Humboldt N Fork of Dead Man's Gulch 61 Comment
  HSC89756  Galium aparine M. Roantree 1985-5-30 74 Humboldt E side of Trinidad Head along dirt road Comment
  BLMAR595  Galium aparine Jennifer Wheeler 2010-7-28 595 Humboldt Lacks Creek, along Pine Ridge Road, common understory 975 Comment
  HSC95390  Galium aparine Andrea Pickart 2002-7-21 188 Humboldt Along entrance to Lanphere Dunes at end of Lanphere Rd. Comment
  HSC57438  Galium bifolium G. L. Clifton, Griswold 1979-7-26 10237 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2024 Comment
  UC169002  Galium bolanderi Joseph P. Tracy 1911-7-6 3361 Humboldt mountain slopes along road between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 762 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
  UC213147  Galium boreale subsp. septentrionale Joseph P. Tracy 1920-8-15 5357 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  UC1143099  Galium divaricatum H. S. Yates 1936-6-23 5876 Humboldt 4 mi nne Cathay Peak; Dyerville Quadrangle Comment
  JEPS52840  Galium muricatum Lauramay T. Dempster 1963-9-3 3919 Humboldt s Orleans (steep w-facing slope of side canyon); Slate Creek Bridge 94 Comment
  JEPS6494  Galium parisiense Joseph P. Tracy 1937-7-11 15421 Humboldt Garberville 152 Comment
  HSC79485  Galium porrigens var. porrigens Kenneth Clark 1980-3-1 508 Humboldt Shelter Cove, middle alluvial terrace, Dead Man's Gulch 37 Comment
  UC169022  Galium trifidum Joseph P. Tracy 1906-8-18 2542 Humboldt Eureka Northern Coast Region 0 Comment
  UC196081  Galium trifidum Joseph P. Tracy 1927-7-10 8246 Humboldt Alton Northern Coast Region 30 Comment
  UC1196084  Galium trifidum var. pusillum Joseph P. Tracy 1935-7-27 14303 1/2 Humboldt McKay Prairie Trinity Summit 1584 Comment
  UC1143113  Galium triflorum H. L. Person 1931-7-30 27 Humboldt Fieldbrook Eureka Quadrangle Comment
  BLMAR224  Galium triflorum Jennifer Anthony-Wheeler 1996-7-11 224 Humboldt N. Dobbyn creek, shady areas of forest floor throughout understory 1005 Comment
  UC1199352  Gamochaeta ustulata Joseph P. Tracy 1918-7-6 5043 Humboldt South Fork of, near the Humboldt-Mendocino County line Eel River; Northern Coast Ranges, Eel River 152 Comment
  CAS-BOT-BC182171  Garrya fremontii Doris K. Kildale 2957 Humboldt McDowell Buttes near Kneeland 914 Comment
  HSC43109  Garrya fremontii Brad Klipfel 1975-5-30 650 Humboldt Horse Mtn. Comment
  OBI35859  Garrya fremontii David J. Keil 1983-7-2 17336 Humboldt Horse Mtn Summit SW of Willow Crk Comment
  HSC8625  Gastridium phleoides D. E. Anderson, J. P. Smith 1971-6-21 - 1104 Humboldt 16.2 mi. E of Garberville on road to Alderpoint. Comment
  SEINET12518332 Image available Gastridium ventricosum Harley P. Chandler 1901-1 1506 Humboldt Klamath River, North Coast Ranges 427 Comment
  JEPS66600  Gaultheria ovatifolia Joseph P. Tracy 1926-6-27 7670 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1463 Comment
  CHSC19736  Gaultheria shallon Gary J. Stebbins 1970-2-2 4 Humboldt Along U.S. 101 across from Patricks Point State Park. 38 Comment
  HSC22505  Gaultheria shallon J. R. Eichelberger 1964-5-5 68 Humboldt N side of the Mad River at the entrance to Azalea State Reserve Comment
  HSC22506  Gaultheria shallon R. E. Hafenfeld 1965-5-9 4 Humboldt Jct. of County Rd. and Gold Bluff Beach Rd. Comment
  HSC22525  Gaultheria shallon Wm. F. Bowman 1968-10-26 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  SBBG5537  Gaultheria shallon H. and M. Dearing 1939-5-21 3449 Humboldt near Trinidad 91 Comment
  HSC55048  Gayophytum diffusum subsp. parviflorum Gilbert Muth 1979-7-31 11551 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  JEPS27563  Gayophytum humile Joseph P. Tracy Jul 16 1930-Jul 19 1930 8940 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC495730  Genista Joseph P. Tracy 1927-7-24 8301 Humboldt Mattole Valley; Northern Coast Ranges, Mattole Valley 152 Comment
  UCD105734  Genista monspessulana R. Raynor 1936-3-21 s.n. Humboldt Fort Seward. Comment
  JEPS47047  Gentiana affinis var. ovata W. L. Jepson 1902-8-1 2134 Humboldt Loleta 60 Comment
  UC1198643  Gentiana sceptrum Joseph P. Tracy 1938-9-25 16166 Humboldt Lake Prairie Bald Mountain 1066 Comment
  JEPS47053  Gentianopsis simplex Joseph P. Tracy 1919-9-22 5275 Humboldt Trinity Summit 1828 Comment
  UC1586897  Geranium dissectum Juha Pykala and D. H. Norris 1987-5-20 751 Humboldt about 7.5 rd mi s Ferndale (along Wildcat Road, near Green Pond Ranch) 450 Comment
  UC165812  Geranium dissectum Joseph P. Tracy 1909-7-4 3006 Humboldt Eureka Northern Coast Region 0 Comment
  UC164808  Geranium oreganum Joseph P. Tracy 1911-7-4 3287 Humboldt near Willow Creek (w side of Trinity River); Northern Coast Ranges, Trinity River 243 Comment
  HSC90422  Geranium pusillum Jean Hanson 1980-4-12 42 Humboldt Eureka, Indian Island in Humboldt Bay, W end of island Comment
  HSC99453  Geum macrophyllum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 104 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
  RSA84895  Gilia capitata H. M. Pollard 1944-9-8 s.n. Humboldt Orleans Mountain 1524 Comment
  UC1197928  Gilia capitata subsp. pacifica Joseph P. Tracy 1937-5-30 15310 Humboldt near Bosworth's (Larrabee Creek); Northern Coast Ranges, Larrabee Creek 457 Comment
  HSC104345  Gilia capitata subsp. pacifica James Regan, Humboldt Redwood Co., LLC 2004-6-3 4 Humboldt Kneeland, near Kneeland Airport 854 Comment
  HSC34464  Gilia millefoliata J. P. Smith 1975-5-11 8077 Humboldt Samoa Peninsula, just N of The Coast Guard Station boundary. Comment
  HSC95545  Gilia millefoliata Andrea Pickart 2002-5-13 101 Humboldt Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 0 Comment
  HSC100935  Githopsis specularioides Miss Handy Jun 1886 344 Humboldt Maple Cr. Comment
  RSA246693  Glaux maritima Robert F. Thorne, Percy C. Everett 1965-8-7 3520 Humboldt Samoa Peninsula. 0 Comment
  UC179951  Glechoma hederacea Joseph P. Tracy 1914-5-17 4475 Humboldt ridge between Freshwater and Ryans Slough (at abandoned Cumens claim); Northern Coast Region, Humboldt Bay Region 304 Comment
  CAS-BOT-BC218426  Glehnia littoralis subsp. leiocarpa J. Clausen 1935-6-16 3386 Humboldt Mouth of Little River Comment
  JEPS14216  Glehnia littoralis subsp. leiocarpa Joseph P. Tracy 1933-8-25 12994 Humboldt s. of mouth of Eel R. Centerville Beach 6 Comment
  HSC70404  Glyceria X occidentalis M. A. Baker 1980-6-7 1836 Humboldt Near Ammon Creek. 732 Comment
  HSC10057  Glyceria declinata W. F. Cartwright 1965-5-20 80 Humboldt 5 mi. S of Arcata on Old Arcata Road Comment
  HSC58542  Glyceria elata Overton, Butler 1979-7-23 9545 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  UCD85114  Glyceria elata Harley P. Chandler 1901-6-1 1526 Humboldt North Coast Ranges. Klamath River. 426 Comment
  HSC93744  Glyceria fluitans Gordon Leppig, Sylvia Leppig, Kai Neander 1998-5-25 791 Humboldt Arcata, Alder Grove Pond 18 Comment
  RSA91960  Glyceria fluitans Joseph P. Tracy 1933-7-20 12801 Humboldt Arcata bottom 15 Comment
  HSC53977  Gnaphalium palustre Griswold, Butler 1979-7-11 7051 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  HSC5713  Gnaphalium palustre H. E. Parks, S. T. Parks Aug 1937 24080 Humboldt Trinidad; Spruce Cove Comment
  SFV18597  Gnaphalium palustre T. W. Nelson, J. P. Nelson 1987-7-4 8625A Humboldt South of Lundbarhills area. Along logging roads where vernally wet. 61 Comment
  RSA168835  Gnaphalium sphaericum Joseph P. Tracy 1942-7-26 17299 Humboldt On the Redwood House road at old mill site, 1 mile N of Redwood House. Valley of South Yager Creek. 457 Comment
  CDA6062  Gnaphalium stramineum T. C. Fuller 1961-9-28 7059 Humboldt 1.5 miles south of Samoa. 0 Comment
  UC1225875  Goodyera oblongifolia Joseph P. Tracy 1947-8-24 17907 Humboldt near Box Camp (Trinity Summit); Trinity Summit 1524 Comment
  UC582833  Goodyera oblongifolia P. A. Munz 1936-8-10 14336 Humboldt 15 mi e of Fortuna (Van Duzen River); Van Duzen River Comment
  JEPS94281  Grindelia hirsutula Vernon Oswald and Lowell Ahart 1997-9-4 8845 Humboldt Big Lagoon County Park at the sw edge of Big Lagoon Big Lagoon; North Coast Region, Big Lagoon County Park, Big Lagoon 3 Comment
  UC1118561  Grindelia hirsutula G. T. Nordstrom 1937-7-1 1444 Humboldt 1.6 mi w Orick; Orick Quad. 0 Comment
  CDA6170  Grindelia stricta var. stricta T. C. Fuller 1961-9-27 7043 Humboldt 1 mile north of Indianola Road, Highway 101, 5 miles north of Eureka. 0 Comment
  RSA46482  Grindelia stricta var. stricta Doris K. Kildale 1925-7-10 944 Humboldt Dyerville. Comment
  SEINET10614320 Image available Grindelia stricta var. stricta J. A. Moore, Julian A. Steyermark 1931-8-9 Moore 3686 Humboldt Salt meadows along canal, Eureka. Comment
  HSC48108  Hackelia micrantha Brad Klipfel 1973-7-15 203 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS67933  Hackelia micrantha W. L. Jepson 1902-7-16 2041 Humboldt Trinity Summit 2133 Comment
  UC525561  Hackelia micrantha Joseph P. Tracy 1932-7-16 10617 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC91596  Hedera helix E. Mackey 1986-10-7 Humboldt Patrick's Point State Park, near old road in dune area Comment
  CAS-BOT-BC306617  Helenium bigelovii Ira L. Wiggins 1930-7-8 4676 Humboldt Along the Eel River, near Scotia Comment
  SEINET11848907  Helenium bigelovii J. P. Tracy, Parks, H. E. 1950-1 11686 Humboldt Park's place, 2 mi N of Trinidad Comment
  HSC91912  Helenium bolanderi E. Mackey 1986-8-2 Humboldt Patrick's Point State Park; near Ceremonial Rock Comment
  SD42503  Helenium bolanderi Carl B. Wolf 1937-8-10 9089 Humboldt Big Lagoon, bog at state park. Comment
  CAS-BOT-BC306873  Helenium bolanderi Ira L. Wiggins 1932-7-19 5891 Humboldt About 1 1/2 miles north of Trinidad Head Comment
  POM161461  Helenium bolanderi Joseph P. Tracy 1912-7-22 3792 Humboldt Near Loleta. 91 Comment
  BLMAR560  Helenium puberulum Jennifer Wheeler 2009-7-21 560 Humboldt Headwaters Forest Reserve, wet depression along trail north of Falk 60 Comment
  RSA255769  Hemitomes congestum Gary D. Wallace 1973-7-11 1252 Humboldt Prairie Creek Redwoods St. Pk. north of Orick. SE of the residences across the road from park hdqrs. just in the treeline. Comment
  JEPS12550  Hemizonia congesta subsp. tracyi Lincoln Constance 1934-6-12 868 Humboldt Bull Creek road and n bank of South Fork Eel River; Dyerville Comment
  JEPS12644  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1931-6-28 9598 Humboldt lower foothills of its nw slope Buck Mountain 762 Comment
  RSA254780  Hemizonia tracyi Thomas W. Nelson 1973-5-28 967 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC906659  Heracleum lanatum Joseph P. Tracy 1947-8-24 17915 Humboldt near Box Camp Trinity Summit 1524 Comment
  UC642335  Heracleum lanatum Joseph P. Tracy 1934-7-27 13491 Humboldt near mouth Mad River 15 Comment
  HSC74502  Heracleum maximum Gail Newton 1980-8-10 2049 Humboldt Near Blake Mtn. 1707 Comment
  UC1199420  Hesperevax acaulis var. robustior Joseph P. Tracy 1937-5-31 15322 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley 152 Comment
  RSA181711  Hesperolinon micranthum Joseph P. Tracy 1911-7-4 3290 Humboldt West side of Trinity River, near Willow Creek. Comment
  HSC98091  Heterocodon rariflorum Cara Witte 2007-7-11 476 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1391 Comment
  SEINET10460663  Heterocodon rariflorum Tracy TRACY 3329 Humboldt WILLOW CR. Comment
  HSC26902  Heterotheca oregona var. rudis Thomas W. Nelson 1973-7-28 1101 Humboldt Mad River at Blue Lake Comment
  HSC20191  Heuchera micrantha D. E. Anderson 1962-5-1 2200 Humboldt 1 mi. W of Hoopa Comment
  HSC40008  Heuchera micrantha Thomas W. Nelson, Jane P. Nelson 1976-7-1 2904 Humboldt Along ridge N of Bear Creek. 1463 Comment
  SEINET12216924  Heuchera micrantha F. H. Utech 1986-1 86 -398 Humboldt ca 3 mi NW of Petrolla on Mattole Road (Humboldt County F3C) enroute to Capetown 80 Comment
  UC154083  Heuchera micrantha var. diversifolia Joseph P. Tracy 1908-6 2865 Humboldt Valley of Van Duzen River (opposite Buck Mountain); Northern Coast Ranges 762 Comment
  HSC49962  Hieracium albiflorum Maralyn O'Meara 1974-7-11 542 Humboldt Kneeland; Barry Ridge Comment
  HSC67475  Hieracium albiflorum J. P. Smith, Steve Selva 1970-6-14 3819 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC99543  Hieracium albiflorum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 208 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC100438  Hieracium albiflorum Carl C. Marshall Jun 1886 259 Humboldt Near Hoopa. Comment
  RSA47102  Hieracium albiflorum Doris K. Kildale 1925-7-15 1088 Humboldt Eureka Slough. Comment
  CHSC2150  Holcus lanatus M. Anthony 1960-5-1 Humboldt Comment
  HSC27024  Holcus lanatus Brad W. Klipfel 1973-8-17 273 Humboldt Big Lagoon Park, at the Sphagnum bog. Comment
  HSC99581  Holcus lanatus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 246 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
  JEPS72924  Holcus lanatus Lincoln Constance 1934-6-11 849 Humboldt Bull Creek Region N. Dyerville Flat (trail along e bank of South Fork Eel River); e bank of South Fork Eel River, Bull Creek Region Comment
  UC1103731  Holcus lanatus J. P. Tracy 1901-4-7 1012 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  HSC18682  Holodiscus discolor H. E. Parks, S. T. Parks Jun 1927 257 Humboldt Hartsook 122 Comment
  HSC23709  Holodiscus discolor Tim Baroni 1971-6-25 43 Humboldt 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
  JEPS45040  Holodiscus discolor W. L. Jepson July 16 1902 - July 23 1902 Humboldt Hupa Trail; Hupa Valley; Hupa Trail, from Hupa Valley Comment
  OBI10169  Holodiscus discolor Carl B. Wolf 1937-8-13 9227 Humboldt North Coast Range, 8 mi E of Hoopa Valley on New road towards Trinity summit 1219 Comment
  UC154212  Holodiscus discolor J. P. Tracy 1909-7-3 3002 Humboldt immediate vicinity of Eureka (near Ocean View Cemetery) 0 Comment
  UC501506  Holodiscus discolor Frank W. Peirson 1926-7-13 8655 Humboldt vicinity of Blue Lake (bottom lands of Mad River); bottom lands of Mad River Comment
  HSC58607  Hordeum brachyantherum G. L. Clifton, Griswold 1979-7-25 10949 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC10176  Hordeum marinum subsp. gussoneanum J. A. Waller 1965-4-19 15 Humboldt Kneeland area. Comment
  HSC104057  Hordeum murinum C. Reynolds 2015-4-28 41 Humboldt Along trail through Arcata Marsh, near Interpretive Center 5 Comment
  UC585617  Horkelia californica Joseph P. Tracy 1937-8-22 15672 Humboldt s Field's Landing (Foot of low hills) 6 Comment
  UC902134  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1947-7-5 17792 Humboldt Mud Springs Trinity Summit 1341 Comment
  CAS-BOT-BC537895  Horkelia tridentata var. flavescens Lincoln Constance; Alan A. Beetle; Joseph P. Tracy 1940-5-17 2613 Humboldt Larabee Valley, near Eureka 762 Comment
  HSC34653  Horkelia tridentata var. flavescens D. E. Anderson 1972-6-20 5726 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC36321  Hosackia crassifolia Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1900 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  SEINET958139  Hosackia pinnata J. P. Tracy 1937-1 15375 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  SEINET957089  Hosackia rosea J. P. Tracy 1949-1 18321 Humboldt Undergrowth in woods near Boynton Prairie 12 miles southeast of Arcata; abundant especially in Tan Oak areas spreading by rootstocks. Comment
  HSC102115  Hydrophyllum fendleri var. albifrons M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1019 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC104067  Hydrophyllum occidentale Jenny Moore 2003-6-5 Humboldt Six Rivers National Forest; South Fork Mountain area, headwaters of Pilot Creek, Becker Ridge, FS Rd. 3N10 1220 Comment
  UC177201  Hydrophyllum tenuipes Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3617 Humboldt near Hydesville; Northern Coast Region 30 Comment
  UC1239761  Hydrophyllum tenuipes Joseph P. Tracy 1933-6-11 12558 Humboldt Holmes Flat 60 Comment
  RSA245281  Hypericum perforatum J. D. Ackerman, A. M. Montalvo 1973-6-17 57 Humboldt 1 mile west of Redwood Creek, along highway 299. Comment
  SDSU6917  Hypericum perforatum subsp. perforatum D. F. Harvey 1938-8-14 2337 Humboldt Trinity River. Comment
  CAS-BOT-BC133500  Iris Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  RSA135934  Iris purdyi Lee W. Lenz, E. K. Balls 1952-5-12 17195 Humboldt 6.3 miles east of Bridgeville along Highway 36 Comment
  UC1222674  Iris purdyi Joseph P. Tracy 1950-7-1 18950 Humboldt Friday Ridge, at Friday Camp, Grouse Mountain Friday Ridge; North Coast Ranges, Grouse Mountain 1219 Comment
  CAS-BOT-BC133694  Iris tenax L. W. Lenz 1953-5-17 18317 Humboldt 1 mi. below Somes Bar on Klamath River 179 Comment
  HSC65228  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-5-1 441 Humboldt 6.05 mi. N of Hwy. 96 on Ishi Pishi Rd., Orleans Comment
  HSC66476  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-4-25 920 Humboldt On Eyesee Rd., 0.3 mi. N of Hwy. 96, Orleans 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
  HSC101964  Iris tenuissima M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 859 Humboldt Patterson Meadows 1566 Comment
  HSC70745  Iris tenuissima R. York 1980-5-17 519 Humboldt Near Le Perron Peak 792 Comment
  UC1046540  Iris tenuissima R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3414 Humboldt ridge between Mad River and Redwood Creek (about Snow Camp, Bald Mountain); Bald Mountain, Snow Camp 1432 Comment
  UC503070  Isoetes howellii Joseph P. Tracy 1930-6-15 8746 Humboldt Larrabee Creek near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  CHSC57145  Isolepis cernua L. P. Janeway 1983-9-24 700 Humboldt 10-30 ft from water line of Big Lagoon at county campground (south corner of the lagoon). 3 Comment
  RSA18061  Isolepis cernua Carl B. Wolf 1927-8-22 790 Humboldt Big Lagoon Comment
  CAS-BOT-BC112454  Isolepis cernua R. Becking 1985-5-5 s.n. Humboldt North Spit; US Coast Guard Dunes. 500-700 ft NE from light beacon at base of North Jetty. Comment
  CAS-BOT-BC340157  Jaumea carnosa Joseph P. Tracy 1939-8-6 16399 Humboldt Big Lagoon 6 Comment
  SEINET3877424  Juncus balticus J. P. Smith, Steve Selva 1970-6-14 3822 Humboldt Along Calif. 96 at Whitmore Creek.; 0 152 Comment
  CHSC105448  Juncus balticus subsp. ater Peter F. Zika 2008-11-3 24274 Humboldt North Coast. Mouth of Elk River NE of Route 101 bridge, 2 air km S of Eureka. 2 Comment
  HSC57016  Juncus bolanderi Overton, Butler 1979-7-24 9623 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  UC1103037  Juncus bolanderi Joseph P. Tracy 1900-9-2 932 Humboldt Eureka Northern Coast Region 0 Comment
  UC2494  Juncus bolanderi H. N. Bolander June 1867 6584 Humboldt near Elk Ridge Comment
Read comments Jul 31 2010
  RSA89765  Juncus breweri Phillip A. Munz 1954-7-25 19877 Humboldt Near dunes at Humboldt Lighthouse south of Samoa. Comment
  HSC13994  Juncus bufonius H. E. Parks, S. T. Parks Jul 1943 24254 Humboldt Spruce Cove, Trinidad 61 Comment
  HSC39770  Juncus bufonius Peter Sorensen 1976-6-11 Humboldt King Salmon Comment
  JEPS66922  Juncus bufonius Lincoln Constance 1934-6-12 862 Humboldt Dyerville, Bull Cr. road and n bank of South Fork Eel River South Fork Eel River, Bull Creek Region Comment
  HSC97983  Juncus covillei Cara Witte 2007-7-11 496 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  HSC63875  Juncus ensifolius M. A. Baker 1979-6-29 961 Humboldt Hopkins Creek 750 Comment
  HSC97214  Juncus ensifolius M. Mesler 2007-7-15 781 Humboldt Near Grouse Mtn., 0.9 mi. S of NF 1 on FS Rd. 5N04 1582 Comment
  UC1101013  Juncus ensifolius Malcolm A. Nobs and S. Galen Smith 1949-8-3 1199 Humboldt s outskirts Eureka Comment
  HSC57986  Juncus exiguus G. L. Clifton, Terry Griswold 1979-7-31 11721 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CHSC102931  Juncus hesperius Peter F. Zika 2007-7-30 23327 Humboldt North Coast, NCo. Above E side of Route 101, at high point between Stone and Big Lagoons. 80 Comment
  JEPS63872  Juncus hesperius Henry Melde 1902-2-8 Humboldt Eureka Comment
  HSC57015  Juncus laccatus Walter Overton, Marvin Butler 1979-7-24 9621 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  SEINET3879721  Juncus lescurii James P. Smith, Thomas W. Nelson 1977-6-30 9220 Humboldt Samoa Peninsula just east of the drag strip.; 0 Comment
  HSC57985  Juncus occidentalis G. L. Clifton, Terry Griswold 1979-7-31 11720 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC1151998  Juncus occidentalis Joseph P. Tracy 1930-7-17 8981 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC50573  Juncus orthophyllus G. L. Clifton, Griswold 1979-7-31 11680 Humboldt Near the Trinity Summit Guard Station, close to the town of Hoopa. 1804 Comment
  HSC58005  Juncus parryi G. L. Clifton, Griswold 1979-7-31 11791 Humboldt Near the Trinity Summit Guard Station, close to the town of Hoopa. 1804 Comment
  UC1601806  Juncus phaeocephalus Harley P. Chandler May 1901 1123 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  HSC20979  Keckiella corymbosa John Warner Hosking 1968-10-10 Humboldt Hwy. 299, 30 mi. W of Willow Creek Comment
  HSC74667  Keckiella corymbosa Gail Newton 1981-8-7 2429 Humboldt Near Bug Creek Butte 1244 Comment
  JEPS11137  Keckiella corymbosa W. L. Jepson 1936-8-8 17864 Humboldt Hartsook; South Fork Eel River Comment
  SBBG66501  Keckiella corymbosa L. Rowntree 1931-7-21 Humboldt Mattole River bridge, near Petrolia Comment
  HSC34289  Kelloggia galioides K. Irwin 1975-8-16 Humboldt Grogans Hole area. Comment
  UC1199391  Kyhosia bolanderi Joseph P. Tracy 1919-9-18 5240 Humboldt near Ranger's lookout; Trinity summit 1889 Comment
  HSC14213  Lamium purpureum R. C. Drewien 1963-3-24 7 Humboldt McKinleyville, Turner Dr. and Mill Creek crossing Comment
  HSC77913  Landoltia punctata Daniel V. Richards 1980-5-25 101 Humboldt N Clam Beach Pond, E side of Hwy. 101, near Cranell exit. Comment
  UC1199131  Lasthenia californica subsp. californica Joseph P. Tracy 1922-4-30 6028 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC34616  Lathyrus japonicus Chirs Busik, P. K. Sather 1974-5-9 Humboldt Clam Beach County Park at the mouth of Strawberry Creek. Comment
  JEPS55264  Lathyrus jepsonii var. californicus W. L. Jepson 1902-7-10 2010 Humboldt Martin's Ranch South Fork Trinity River Comment
  UC1222416  Lathyrus jepsonii var. californicus Joseph P. Tracy 1942-7-1 17361 Humboldt opposite Buck Mountain; Van Duzen River 762 Comment
  JEPS55279  Lathyrus latifolius W. L. Jepson 1932-7-30 16464 Humboldt Scotia Comment
  CDA18239  Lathyrus littoralis G. D. Barbe, T. C. Fuller 1974-6-19 1877 Humboldt North Coast Ranges; Mad River mouth, beach S of river, at end of Iversen Lane, Tyee City. 4 Comment
Read comments Sep 18 2009
  CHSC859  Lathyrus littoralis M. Anthony 1960-5-14 Humboldt Near Arcata. Comment
  HSC33765  Lathyrus littoralis Paul Dryden 1975-5-24 207 Humboldt Samoa Dunes, across from the boat landing. Comment
  HSC44618  Lathyrus littoralis Laura Witherspoon 1977-5-25 Humboldt Manila Comment
  UC494166  Lathyrus littoralis H. E. Parks 1930-5-24 798 Humboldt Little River Lagoon Comment
  HSC14740  Lathyrus littoralis J. P. Tracy 1906-5-13 2451 Humboldt Humboldt Bay, Ocean Beach Comment
  RSA406672  Lathyrus littoralis J. P. Smith, T. W. Nelson 1977-6-30 9217 Humboldt Samoa Peninsula just east of the drag strip. Comment
  RSA554595  Lathyrus littoralis Walter Wisura 1993-5-9 4913 Humboldt Sand dunes near Samoa. Comment
  CAS-BOT-BC205039  Lathyrus palustris Charlotte M. Hoak 1931-7-15 s.n. Humboldt Big Lagoon Comment
  HSC95147  Lathyrus palustris Gordon Leppig 2003-7-18 2008 Humboldt Eureka, Marsh N of Elk River Slough 2 Comment
  SEINET12153979  Lathyrus polyphyllus J. P. Tracy 1951-1 19469 Humboldt On Takilma-Happy Camp Road, nr state line. Happy Camp Mtn, in Trinity Summit Range, NE Hawkins Bar 1280 Comment
  UC495708  Lathyrus polyphyllus Joseph P. Tracy 1932-7-20 10735 Humboldt just w Corral Prairie; Klamath Mountains 1524 Comment
  HSC100520  Lathyrus torreyi Carl C. Marshall Jun 1886 319 Humboldt Trail E of Hoopa. Comment
  UC1222403  Lathyrus torreyi Joseph P. Tracy 1942-6-28 17272 Humboldt e of Korbel (on Murphy Ridge beyond the meadows); Bald Mountain, Murphy Ridge Comment
  RSA88215  Lathyrus vestitus subsp. bolanderi C. L. Hitchcock 1948-6-7 19085 Humboldt Ca 15 mi les east of Blue Lake, along Highway #299. Comment
  JEPS55357  Lathyrus vestitus var. ochropetalus Mrs. M. H. Manning 1900-1 Humboldt Hupa Valley Comment
  UCD106539  Lathyrus vestitus var. ochropetalus C. L. Hitchcock 1949-6-7 19081 Humboldt Redwood highway ca. 15 miles N of Garberville. Comment
  UC175386  Leontodon saxatilis subsp. saxatilis J. P. Tracy 1909-7-4 3008 Humboldt immediate vicinity Eureka 0 Comment
  UC582428  Leontodon saxatilis subsp. saxatilis Joseph P. Tracy 1933-8-22 12982 Humboldt near Fields Landing (around Humboldt Bay); Northern Coast Region, around Humboldt Bay 6 Comment
  HSC100461  Lepidium menziesii Carl C. Marshall Jun 1887 464 Humboldt Harris and Garberville Rd. Comment
  CAS-BOT-BC12876  Lepidium strictum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta. Comment
  UC162613  Lepidium virginicum Harley P. Chandler Jun 1901 1461 Humboldt Klamath River North Coast Ranges 304 Comment
  UC1199168  Lepidium virginicum Joseph P. Tracy 1900-9-9 959 Humboldt near Hydesville; Northern Coast Region, Van Duzen River 60 Comment
  POM193006  Leptosiphon androsaceus H. E. Parks, Joseph P. Tracy 1930-5-25 0794 Humboldt Vicinity of Bridgeville, Laribee Valley Comment
  HSC5362  Leucanthemum vulgare D. B. Bader 1963-3-1 20 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101 Comment
  HSC5360  Leucanthemum vulgare Francis Winter 1960-4-19 Humboldt Samoa peninsula 5 miles W of Arcata. Comment
  HSC74476  Lewisia cotyledon Gail Newton 1980-7-24 1762 Humboldt Near Somes Mtn. 1615 Comment
  UC1488740  Lewisia cotyledon var. cotyledon Marc Baker 1980-7-24 3196 Humboldt near Orleans Moutain; Forks of Salmon Quad., 239 ft.; 41 17' 28 left 123 27' 21 bottom 1524 Comment
  HSC102123  Lewisia leeana M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1027 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC48755  Lewisia nevadensis Brad Klipfel 1973-6-10 52 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC38789  Lewisia nevadensis J. P. Smith 1976-5-30 8827 Humboldt Near Black Rock on road to Clear Lake 1524 Comment
  BLMAR412  Leymus X vancouverensis Jennifer Wheeler 2007-8-22 412 Humboldt South Spit, East side, eastern edge of north end Comment
  CAS-BOT-BC283511  Leymus X vancouverensis Joseph P. Tracy 1927-6-26 8214 Humboldt Stone Lagoon 6 Comment
  SEINET200642 Image available Leymus triticoides J. P. Tracy 1929-6-3 8601 Humboldt Trinity River Valley at Willow Creek 152 Comment
  HSC91937  Ligusticum californicum E. Mackey 1986-6-16 Humboldt Patrick's Point State Park, edge of meadow at Palmer's Point Comment
  UC1400384  Lilaeopsis occidentalis Robert F. Thorne and P. Everett 1965-8-7 35207 Humboldt Samoa Peninsula 0 Comment
  UC13798  Lilium columbianum Chesnut and Drew 1888-7-8 Humboldt near Arcata Comment
  CAS-BOT-BC130690  Lilium occidentale David D. Keck 1948-7-1 5978 Humboldt 3 mi. N. Big Lagoon Comment
  CAS-BOT-BC130729  Lilium pardalinum Doris Kildale 1931-5-16 10686 Humboldt Snow Camp Comment
  JEPS563  Lilium pardalinum Joseph P. Tracy 1937-7-24 15533 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  SEINET3992214  Lilium pardalinum Unknown 1937-7-24 15533 Humboldt Trinity Summit, head of Little Hors-Linto Creek 1372 Comment
  HSC58026  Lilium pardalinum subsp. pardalinum G. L. Clifton 1979-7-31 11837 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC79327  Lilium pardalinum subsp. pardalinum D. K. Imper 1982-7-15 Humboldt 1/3 mi. E of Grizzly Creek State Park on Hwy. 36, bank of Van Duzen River 1220 Comment
  HSC65208  Lilium pardalinum subsp. vollmeri T. Jimerson, J. Pageau 1979-7-17 676 Humboldt Near Clear Lake 1494 Comment
  HSC98082  Lilium pardalinum subsp. vollmeri Cara Witte 2007-7-3 418 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. 1/2 mile east from intersection with National Forest 1. 1397 Comment
  HSC98357  Lilium vollmeri T. Jimerson, J. Pageau 1979-6-22 600 Humboldt Near Bee Mtn., close to the town of Orleans 656 Comment
  CAS-BOT-BC506200  Lilium vollmeri Albert Vollmer 1949-7-1 2 Humboldt Bog on Bald Mountain Comment
  UC615032  Lilium washingtonianum subsp. purpurascens Beryl O. Schreiber 1934-6-5 1142 Humboldt Gray's Resort; Redwood Creek Comment
  UC1197413  Limnanthes douglasii Joseph P. Tracy 1922-5-29 6064 Humboldt Head of South Yager Creek Northern Coast Ranges 762 Comment
  HSC15784  Limnanthes douglasii J. E. Lankila 1962-5-6 8 Humboldt W bank of river at Ferndale. Comment
  UC1005603  Limnanthes douglasii Frank W. Gould 1939-5-29 836 Humboldt near ski hut; Horse Mountain 1005 Comment
  RSA505342  Limnanthes douglasii subsp. nivea Barbara Ertter, Thomas Delendick 1987-5-16 6925 Humboldt Vista Point just W of Berry Summit on Highway 299, ca. 15 air miles E of Arcata. 915 Comment
  HSC22526  Limonium californicum Wm. F. Bowman 1968-11-9 Humboldt Along E edge of Humboldt Bay, 1 mi. S of Arcata Comment
  SEINET7249786 Image available Limonium californicum C. C. Harris, S. K. Harris 1939-1 973 Humboldt South shore of Humboldt Bay Comment
  UC1198589  Linanthus androsaceus Joseph P. Tracy 1927-7-4 8232 Humboldt Iaqua 609 Comment
  JEPS58239  Linanthus bicolor Lincoln Constance 1934-6-4 817 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region Comment
  UC60871  Linanthus bicolor Harley P. Chandler Jun 1901 1417 Humboldt Klamath River North Coast Ranges 243 Comment
  UC1198544  Linanthus bolanderi Joseph P. Tracy 1922-5-29 6073 Humboldt near head of South Yager Creek; Northern Coast Ranges 762 Comment
  UC162582  Linanthus filipes Joseph P. Tracy 1911-7-9 3456 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 182 Comment
  RSA0087554  Linnaea borealis subsp. longiflora Joseph P. Tracy 1950-6-21 18857 Humboldt Willow Creek Canyon, along Trinity Highway, east of crossing of Cedar Creek. 762 Comment
  HSC59497  Linum bienne M. A. Ericksen 1979-5-23 304 Humboldt 880 Central Ave., McKinleyville. Comment
  HSC79358  Linum bienne Kenneth Clark 1980-4-18 595 Humboldt Above Dead Man's Gulch. 168 Comment
  UC668021  Lipocarpha micrantha Joseph P. Tracy 1931-9-7 9650 A Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley, Willow Creek 152 Comment
  UC666981  Listera caurina Joseph P. Tracy 1937-8-12 15648 Humboldt Snow Camp 1402 Comment
  SEINET12034164  Lithocarpus densiflorus K. S. Erdman 1970-1 4841 Humboldt Redwood Creek,about 2-3 mi above the road end. Near mouths of McArthur and Elam Creeks,Redwood Ntl Comment
  CAS-BOT-BC36101  Lithocarpus densiflorus var. densiflorus L. B. Kildale 1930-8-10 10536 Humboldt Snow Camp, head of Redwood Creek Comment
  CAS-BOT-BC36147  Lithocarpus densiflorus var. densiflorus Doris K. Kildale 1926-7-25 2438 Humboldt Briceland Bridge. 1/2 mile west of Gaberville 114 Comment
  RSA273403  Lithocarpus densiflorus var. densiflorus Thomas W. Nelson, Jane Nelson 1976-2-21 2247 Humboldt Beside the Hoopa-Redwood Valley Rd. ca. 5 mi. west of Hoopa. Comment
  RSA697655  Lithocarpus densiflorus var. densiflorus Unspecified 1936-09 s.n. Humboldt Richardson's Grove (State Park). Comment
  HSC45399  Lithophragma campanulatum Thomas W. Nelson, Jane Nelson 1977-6-19 3492 Humboldt N of Goat Hill 1616 Comment
  UC1199427  Logfia gallica Joseph P. Tracy 1938-6-9 15884 Humboldt Dobbyn Creek 152 Comment
  UC1223118  Logfia gallica Joseph P. Tracy 1950-6-23 18869 Humboldt 3 mi ne of Alderpoint; Doppyn Creek 213 Comment
  CAS-BOT-BC342348  Logfia gallica Henry M. Pollard 1945-8-26 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  CAS-BOT-BC283403  Lolium multiflorum C. L. Hitchcock; C. V. Muhlick 1963-7-14 22906 Humboldt Along Eel River at Fern Bridge Comment
  CAS-BOT-BC283407  Lolium multiflorum H. M. Hall 1924-8-9 s.n. Humboldt Van Duzen River Valley, near Carlotta Comment
  UCD66068  Lolium multiflorum R. N. Raynor 1935-6-7 Humboldt Fort Seward. Comment
  UC1103482  Lolium perenne Joseph P. Tracy 1937-6-6 15331 Humboldt Ferndale 15 Comment
  HSC73721  Lomatium californicum M. A. Baker 1980-7-15 2954 Humboldt Near Whiting Ridge. 1341 Comment
  UC1222808  Lomatium dasycarpum Joseph P. Tracy 1950-7-6 19000 Humboldt Albee Road, 2 mi S of Burr Valley Comment
  SEINET13944712 Image available Lomatium howellii William A. Weber 1965-1 12295 Humboldt hills 5 mi E of Bridgeville; 2100 ft alt 640 Comment
  HSC56225  Lomatium macrocarpum G. L. Clifton, Terry Griswold 1979-8-2 12261 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC906635  Lomatium macrocarpum Joseph P. Tracy 1947-7-5 17780 Humboldt ridge top 1 mi. w. Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  UC1197149  Lomatium tracyi Joseph P. Tracy 1933-7-9 12650 Humboldt Brannan Mt. Northern Coast Ranges, Brannan Mt. 1066 Comment
  HSC97097  Lomatium utriculatum Yun Chan, Renee Meyer, Sophary Yun 2007-6-4 2 Humboldt 7.4 mi. S of Hwy. 299 on NF1, Coldspring Camp 1372 Comment
  JEPS12869  Lonicera ciliosa Joseph P. Tracy 1921-10-16 5876 Humboldt viz. ridge n Willow Creek (between Willow and Campbell Creeks); Northern Coast Ranges, Brannan Mountain 944 Comment
  HSC99850  Lonicera conjugialis Jimerson, J. Pageau 1979-8-10 750 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa. 1463 Comment
  UC1239547  Lonicera conjugialis Joseph P. Tracy 1932-7-12 10481 Humboldt head Brett Hole; Trinity Summit 1828 Comment
  UC1239553  Lonicera hispidula var. vacillans Joseph P. Tracy 1923-10-14 6572 Humboldt 5 mi n Blocksburg; Larrabee Creek 457 Comment
  CAS-BOT-BC240667  Lonicera interrupta Carl D. Duncan 1920-9-20 s.n. Humboldt Hoopa Valley Comment
  HSC3931  Lonicera involucrata var. ledebourii D. E. Anderson 1961-9-13 1806 Humboldt Big Lagoon County Park Comment
  HSC89435  Lonicera involucrata var. ledebourii P. A. Daly 1984-5-13 24 Humboldt Along trail/Rd. at Trinidad Head. 61 Comment
  JEPS13675  Lonicera involucrata var. ledebourii Joseph P. Tracy 1937-6-20 15343 Humboldt 10 miles up from mouth Bear River 152 Comment
  HSC81932  Lotus aboriginus Thomas W. Nelson, Jane P. Nelson 1979-7-3 4961 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  POM199441  Lotus aboriginus H. E. Parks, J. P. Tracy, C. R. Parks 1930-9-15 0762 Humboldt Kneeland, Bald Hills. Comment
  RSA20779  Lotus crassifolius Carl B. Wolf 1937-8-13 9243 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  JEPS84908 Image available Lotus douglasii W. L. Jepson 1902-8-13 1979 Humboldt Three Creeks to Willow Creek (forest on mt. side); ; Three Creeks, to Willow Creek, Humboldt Co. 762 Comment
  SEINET12154222  Lotus nevadensis var. douglasii H. P. Chandler 1901-1 1487 Humboldt Klamath R 427 Comment
  UC169299  Lotus purshianus var. purshianus Joseph P. Tracy 1912-8-3 3973 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC176274  Lotus purshianus var. purshianus Joseph P. Tracy 1913-7-20 4386 Humboldt Redwood Creek, at crossing of Willow Creek road Northern Coast Ranges 304 Comment
  POM276673  Lotus scoparius var. scoparius Lyman Benson 1928-7-1 468 Humboldt Weott Ranger Station. 61 Comment
  SEINET3560045 Image available Lotus stipularis var. subglaber Joseph P. Tracy 1914-7-5 4576 Humboldt Bald Mountian, between High Prairie and Snow Camp 1219 Comment
  HSC38527  Lotus unifoliolatus var. unifoliolatus D. E. Anderson, J. P. Smith 1971-6-18 - 1069 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  HSC43172  Lotus unifoliolatus var. unifoliolatus R. Sutherland 1976-8-13 6 .13876 Humboldt Whittemaore Grove at edge of forest 213 Comment
  UC1197306  Lotus wrangelianus Joseph P. Tracy 1931-6-14 9578 Humboldt Alton, along Van Duzen River North Coast Ranges, Van Duzen River 30 Comment
  JEPS55422  Lotus yollabolliensis Joseph P. Tracy Jul 16 1930-Jul 30 1930 8945 Humboldt near Blake lookout (along summit South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1737 Comment
  SEINET3523647 Image available Lotus yollabolliensis Joseph P. Tracy 1937-7-29 15586 Humboldt South Fork Mountain, near McKay camp 1676 Comment
  UC581692  Luina hypoleuca Joseph P. Tracy 1933-7-25 12900 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC726370  Lupinus A. A. Heller 1923-7-8 13774 Humboldt near Fortuna; near Fortuna Comment
  RSA167393  Lupinus albicaulis var. shastensis Joseph P. Tracy 1940-7-14 16687 Humboldt Wilder Ridge Comment
  UC1223267  Lupinus albicaulis var. shastensis Joseph P. Tracy 1949-6-25 18340 Humboldt at Big Hill on road w Box Camp (w slope of summit Trinity Summit); Trinity Summit, at Big Hill Comment
  CHSC19515  Lupinus arboreus Wendell Wood 1970-10-7 307 Humboldt McKinleyville. Clam Beach. 0 Comment
  HSC27880  Lupinus arboreus Clifton Raymond Chesbrough 1973-6-19 78 Humboldt 1/4 mi. W of the Samoa entrance to Samoa Bridge Comment
  SEINET10488497  Lupinus arboreus Chester T. Dziekanowski, David B. Dunn; Charlene A. Bennett 1976-8-6 Dziekanowski 2501 Humboldt In the vicinity of a state park on the beach opposite mckinleyville. Vast Colony of yellow lupinus arboreus 3 Comment
  SEINET5327650  Lupinus arboreus J. Tracy 1910-5-8 3134 Humboldt Immediate vicinity of Eureka 152 Comment
  UC1223260  Lupinus arboreus Joseph P. Tracy 1934-7-21 13482 Humboldt Samoa Sand Dunes Comment
  RSA183596  Lupinus arboreus var. arboreus C. F. Zeillemaker 1964-4-7 64 -A-006 Humboldt Three miles southwest of Samoa on Samoa Peninsula at U.S. Coast Guard Station. 3 Comment
  HSC95546  Lupinus bicolor Andrea Pickart 2002-5-20 106 Humboldt Manila Dunes, near Manila Community Services District treatment area 15 Comment
  HSC14796  Lupinus bicolor J. W. Johnson 1962-4-18 1249 Humboldt Arcata, Mad River County Park. Comment
  HSC32075  Lupinus bicolor Glenn McGourty 1974-4-27 35 Humboldt Along side of Mattole River Comment
  HSC99592  Lupinus latifolius var. latifolius K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 261 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  UC169346  Lupinus polyphyllus var. pallidipes Joseph P. Tracy 1912-6-9 3693 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  UC502999  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1932-7-14 10558 Humboldt wet meadow at Corral Prairie (Trinity Summit); Klamath Mountains, Trinity Summit 1524 Comment
  UC82192  Lupinus polyphyllus var. polyphyllus George Ruddock 1901-6-20 Humboldt Eureka Comment
  SBBG13914  Lupinus rivularis H. and M. Dearing 1933-5-17 2957 Humboldt N of Big Lagoon Comment
  HSC93220  Lupinus variicolor Ananda Dickie, Wendy Hooper, Rose Madrone, Kyla Waddell 1996-5-12 57 Humboldt Arcata bottoms, intersection of Janes Rd. and Jackson Ranch Rd., 200 m E of the Simpson Administration Bldg. 24 Comment
  HSC74684  Luzula comosa Gail Newton 1981-8-7 2471 Humboldt Near Board Camp Mtn. 1478 Comment
  UC1152128  Luzula comosa Joseph P. Tracy 1934-6-27 11040 Humboldt in open forest Horse Mountain Horse Mountain 1432 Comment
  UC1103682  Luzula comosa var. laxa Joseph P. Tracy 1924-4-27 6649 Humboldt Northern Coast Ranges: Near Berry's on Redwood Creek 365 Comment
  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
  HSC63876  Luzula parviflora M. A. Baker 1979-6-29 959 Humboldt Hopkins Creek 750 Comment
  UCSB587  Luzula parviflora Parks, H.; Parks, S. 1952-06 Humboldt Bishop Pine Lodge; Trinidad Comment
  HSC97961  Luzula parviflora Cara Witte 2007-6-13 258 Humboldt Along Forest Service Road 5N04. 1/4 mile east of spring near Grouse Mountain. 1564 Comment
  UC1133756  Luzula subsessilis H. L. Person 1932-5-11 19424 Humboldt Korbel Eureka Quad., Korbel Comment
  UC103678  Luzula subsessilis Joseph P. Tracy 1918-5-5 4925 Humboldt sand dunes of Ocean Beach at Humboldt Bay; Northern Coast Region, Ocean Beach at Humboldt Bay Comment
  JEPS19059  Lycopodium clavatum C. C. Marshall 1890-1 97 Humboldt 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
  UCSB12371  Lysichiton americanus Dearing, Hugh; Dearing, Margaret 1939-5-25 Humboldt Near Samoa Comment
  HSC91595  Lysichiton americanus E. Mackey 1986-10-7 Humboldt Patrick's Point State Park, near park entrance Comment
  POM68322  Lysichiton americanus Marcus E. Jones 1924-05 s.n. Humboldt Scotia. [county not specified] Comment
Read comments Dec 31 2015
  RSA183502  Lysichiton americanus T. L. Grosz 1964-5-1 C Humboldt 300 yards up on Park Ave. and behind Myrtle Ave. Comment
  SEINET10465778  Lysichiton americanus Sacks 1977-4-8 SACKS 5 Humboldt 0.2 mi W of Highway-101 and 5 mi. N of Trinidad 61 Comment
  UC176174  Lysichiton americanus Joseph P. Tracy 1913-3-30 4029 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  UC176778  Madia anomala J. P. Tracy 1903-5-22 1888 Humboldt at Alder Point; Eel River 152 Comment
  HSC73178  Madia exigua M. A. Baker 1980-5-18 1336 Humboldt Near Black Mtn. 792 Comment
  CAS-BOT-BC343029  Madia gracilis David D. Keck 1944-7-11 5500 Humboldt 12.3 mi. S.E. of Petrolia; halfway between upper Mattole and Honeydew, Mattole River 121 Comment
  CAS-BOT-BC94819  Madia gracilis R. C. Wenk; P. Hopkinson; M. Hammond; P. Brownsey 2008-6-6 834 Humboldt Humboldt Redwoods S.P., Look Prairie, 0.5 air mi. N of Mattole Rd., and 3 air mi. W of Hwy. 101 243 Comment
  HSC57180  Madia gracilis Griswold, Butler 1979-7-10 6211 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  RSA47161  Madia gracilis subsp. gracilis Doris K. Kildale 1927-7-1 3619 Humboldt Alton Hill Comment
  HSC99086  Mahonia pinnata subsp. pinnata Cara Witte 2008-9-13 1034 Humboldt Intersection of National Forest 1 and Forest Service Road 5N27. Entrance to Cold Spring. 1476 Comment
  HSC89446  Maianthemum dilatatum P. A. Daly 1984-5-13 23 Humboldt Along trail at Trinidad Head 61 Comment
  UC146220  Maianthemum dilatatum J. P. Tracy 1906-11-4 2552 Humboldt immediate vicinity Eureka 0 Comment
  HSC15599  Maianthemum dilatatum D. B. Bader 1963-5-1 43 Humboldt Second of the Clam Beach lagoons N end, W of Hwy. 101 Comment
  HSC40028  Maianthemum racemosum subsp. amplexicaule Thomas W. Nelson, Jane P. Nelson 1976-6-22 2874 Humboldt Area at Goat Hill. 1666 Comment
  HSC57938  Maianthemum racemosum subsp. amplexicaule Gilbert Muth 1979-8-1 11600 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC70565  Maianthemum racemosum subsp. amplexicaule M. A. Baker 1980-7-23 3186 Humboldt Near Orleans Mtn. 1859 Comment
  RSA21602  Maianthemum racemosum subsp. amplexicaule Carl B. Wolf 1937-9-14 9349 Humboldt North Coast Range, Lord Ellis Road, 0.5 mile east of summit of Willow Creek Grade 762 Comment
  HSC97576  Maianthemum stellatum Cara Witte 2007-5-29 134 Humboldt Along National Forest 1. Approximately 1/2 mile south of White Oak Opening. 1251 Comment
  HSC98155  Maianthemum stellatum F. B. Plett 1963-4-21 19 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  HSC98156  Maianthemum stellatum W. D. Stevens 1964-5-16 9 Humboldt 1.0 mi. N of Kneeland School Comment
  CAS-BOT-BC347410  Malacothrix floccifera Doris K. Kildale 1926-9-5 2651 Humboldt Lasseck's Peak - Signal Peak 1791 Comment
  UC166803  Malacothrix floccifera Joseph P. Tracy 1911-7-4 3279 Humboldt along Willow Creek, a tributary of Trinity River Northern Coast Ranges, Trinity River 152 Comment
  UC183619  Malus fusca Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3593 Humboldt near Hydesville; Northern Coast Region 30 Comment
  UCD113220  Malus fusca H. E. Parks 1933-4-1 4352 Humboldt Spruce Cove, Trinidad. Comment
  HSC7032  Marah oregana G. N. Bos 1965-5-15 268 Humboldt 2 mi. W of Berry Summit along U.S. 299. 701 Comment
  UC577418  Marrubium vulgare Joseph P. Tracy 1925-5-17 6973 Humboldt Trinity River Valley near the South Fork; Northern Coast Ranges, Trinity River Valley near South Fork 182 Comment
  HSC25766  Medicago lupulina Jana Kattenhorn 1970-10-28 150 Humboldt Mad River Bottoms, N Bank off Essex, off Hwy. 299 Comment
  HSC37910  Medicago polymorpha Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  UC1197425  Medicago polymorpha Joseph P. Tracy 1932-5-1 9882 Humboldt vicinity of Garberville Northern Coast Ranges 121 Comment
  UC1145138  Melica californica Joseph P. Tracy 1943-5-9 17418 Humboldt Willow Creek Trinity River Valley (Trinity River Valley) 152 Comment
  UC1145125  Melica geyeri Joseph P. Tracy 1942-6-2 17099 Humboldt 2 mi n Bridgeville 609 Comment
  HSC98014  Melica harfordii Cara Witte 2007-7-12 531 Humboldt Ammon Ridge Road. Approximately 2 miles southeast of intersection with 5N10. 1353 Comment
  UC905595  Melica harfordii David D. Keck 1948-7-2 6012 Humboldt 1 mi n Richardson Grove (U.S. Hwy 101, along South Fork of Eel River) Comment
  UCD87536  Melica harfordii A. H. Murphy 1947-6-17 s.n. Humboldt 1 mile south of Blocksburg. Comment
  SEINET11678859  Melica harfordii H. P. Chandler 1901-1 1477 Humboldt Klamath River, North Coast Ranges 366 Comment
  CAS-BOT-BC281005  Melica spectabilis Joseph P. Tracy 1932-7-12 10445 Humboldt Klamath Mts,Trinity Summit. At Corral Prairie 1524 Comment
  HSC32240  Melica subulata J. O. Sawyer 1970-6-24 2280 Humboldt W of Mill Creek Lakes. 1677 Comment
  HSC69698  Melilotus albus R. Kalal 1980-6-8 17 Humboldt Pump Station #1, along the Mad River 14 Comment
  HSC71570  Melilotus albus J. P. Smith 1971-10-9 5042 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC71635  Melilotus albus J. P. Smith 1973-5-26 6875 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC1225832  Mentha aquatica Joseph P. Tracy 1947-11-9 17945 Humboldt Ferndale 9 Comment
  UC175494  Mentha canadensis Joseph P. Tracy 1912-10-20 4007 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  UC577379  Mentha canadensis Joseph P. Tracy 1924-8-31 6854 Humboldt Klamath River at mouth of Bluff Cr.; Klamath River at mouth Bluff Cr. 91 Comment
  UC577383  Mentha pulegium Joseph P. Tracy 1933-8-22 12985 Humboldt near Loleta; near Loleta 6 Comment
  SEINET10498893  Mentha pulegium Mary Susan Taylor 1977-8-5 Taylor 1429 Humboldt Abundant around bridge over Eel River, at the turnoff from Hwy 1 to Ferndale, in Fernbridge. 2 Comment
  UCSB29334  Mentha pulegium Hook, J. 1972-7-3 Humboldt On Hwy 101, E. side of road, 23.5 miles S. of Van Dusen River 45 Comment
  HSC15863  Mentzelia dispersa W. K. Parks Jul 1933 1420 Humboldt On Buck Mtn. Comment
  HSC28256  Menziesia ferruginea subsp. ferruginea Gary S. Lester 1973-12-2 59 Humboldt Humboldt State University Campus, Arcata Comment
  HSC77388  Menziesia ferruginea subsp. ferruginea L. P. Janeway 1983-4-20 237 Humboldt Along Community Forest main access rd., E of HSU campus 168 Comment
  CAS-BOT-BC429181  Micranthes oregana Joseph P. Tracy 1932-7-14 10566 Humboldt Klamath Mountains, Trinity Summit. At Corral Prairie 1524 Comment
  CAS-BOT-BC348375  Micropus californicus var. californicus Doris K. Kildale 1926-4-30 1915 Humboldt Fruitland Hill - Harris Road Comment
  UC582430  Microseris borealis Joseph P. Tracy 1936-6-28 15027 Humboldt Bald Mountain; at Lake Prairie. 1066 Comment
  UC1223043  Microseris laciniata subsp. laciniata Joseph P. Tracy 1947-6-8 17706 Humboldt by old Strong's District School House (5 mi e of town); Carlotta 60 Comment
  UC582440  Microseris nutans Joseph P. Tracy 1935-7-27 14307 Humboldt McKay Prairie Trinity Summit 1584 Comment
  HSC6101  Microseris nutans W. K. Parks 1933-7-15 5263 Humboldt South Fork Mtn. 1677 Comment
  SEINET200378  Microsteris gracilis J. P. Tracy 1935-7-23 14146 Humboldt Trinity Summit at Corral Prairie 1585 Comment
  SEINET10496812  Microsteris gracilis Lawrence P. Janeway 1983-4-16 Janeway 229 Humboldt Lord-ellis summit quad. T6n,r4e,sec.19. W facing slope near the old hwy 299 on W side of berry summit. Open hill grassland 823 Comment
  POM257751  Mimulus aurantiacus var. aurantiacus C. L. Hitchcock, J. S. Martin 1939-7-14 5439 Humboldt Bluffs facing sea at Shelter cove Comment
  UC615326  Mimulus cardinalis Beryl O. Schreiber 1932-7-11 364 Humboldt road s Garberville Comment
  UC147879  Mimulus dentatus J. P. Tracy 1900-5-30 833 Humboldt immediate vicinity Eureka 0 Comment
  JEPS4719  Mimulus dentatus Milo S. Baker 1923-7-16 16 Humboldt 3 mi e Eureka Comment
  HSC102503  Mimulus guttatus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1488 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  POM273242  Mimulus guttatus Lyman Benson 1928-7-10 453 Humboldt Eureka, along ocean bluffs. Comment
  RSA14135  Mimulus guttatus Elmer I. Applegate 1923-9-10 3995 Humboldt Stone Lagoon. Comment
  RSA555245  Mimulus guttatus Robert F. Thorne, Percy C. Everett 1965-8-9 35317 Humboldt Clam Beach County Park: along highway. 3 Comment
  UC1063548  Mimulus inodorus H. L. Person 1932-8-1 Humboldt Korbel Eureka Quadrangle Comment
  JEPS27379  Mimulus inodorus H. W. Grinnell 1932-7-22 Humboldt near Blake Lookout (s of USGS Signal Rock); South Fork Mountain Comment
  UC582599  Mimulus layneae Joseph P. Tracy 1937-6-27 15382 Humboldt w of mouth South Fork of Trinity River; Friday Ridge 1219 Comment
  HSC55609  Mimulus moschatus Overton, Butler 1979-7-23 9492 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC56105  Mimulus moschatus G. L. Clifton 1979-7-31 11839 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC82403  Mimulus moschatus Thomas W. Nelson 1979-7-11 5035 Humboldt Along trail from Grogan's Hole to summit of N Trinity Mtn. Comment
  RSA447971  Mimulus moschatus Thomas W. Nelson, Jane P. Nelson 1977-7-4 3606 Humboldt Along road north from Alder Springs. 1524 Comment
  HSC75461  Mimulus primuloides J. O. Sawyer 1980-7-18 3610 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC44508  Mimulus primuloides var. primuloides Brad Klipfel 1973-7-1 119 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC20826  Mimulus pulsiferae J. P. Tracy 1934-6-27 11089 Humboldt Grouse Mtn.; near 'Cold Springs 1433 Comment
  UC147905  Mimulus pulsiferae Joseph P. Tracy 1908-6 2698 Humboldt opposite Buck Mountain (along stream); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC48677  Mimulus tilingii Brad Klipfel 1973-7-31 252 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC388625  Minuartia douglasii Doris K. Kildale 1926-4-25 1801 Humboldt Willow Creek Flat 152 Comment
  UC303177  Mitella caulescens Joseph P. Tracy 1923-6-24 6361 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC24108  Mitella diversifolia J. O. Sawyer 1970-6-27 2307 Humboldt Site 318. 1494 Comment
  HSC55867  Mitella trifida G. L. Clifton, Griswold 1979-7-25 10889 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC100651  Mitella trifida Carl C. Marshall Mar 1886 153 Humboldt Wet shaded places. Comment
  HSC32260  Moehringia macrophylla J. O. Sawyer 1970-6-24 2275 Humboldt W of Mill Creek Lakes. 1677 Comment
  HSC58317  Moehringia macrophylla Overton, Butler 1979-8-2 12605 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC8146  Moehringia macrophylla Harley P. Chandler June, 1901 1284 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 1097 Comment
  HSC97461  Moehringia macrophylla C. Witte 2007-5-21 51 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1419 Comment
  UCD63139  Moehringia macrophylla Heather Mehl 2008-4-15 s.n. Humboldt California. Humboldt County: Redwood National Park, 11 miles east of Hwy 101 on Bald Hills Road. 640 Comment
  HSC56468  Monardella glauca Griswold, Butler 1979-7-12 7278 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC44557  Monardella odoratissima Brad Klipfel 1973-7-15 176 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UCD125282  Monardella odoratissima John M. Tucker 1948-9-3 1853 Humboldt Six Rivers National Forest (formerly part of Trinity National Forest), on Horse Mountain at junction of road to Grouse Mt. and road to Horse Mt. Mine. 1463 Comment
  UC577361  Monardella odoratissima subsp. glauca Joseph P. Tracy 1933-7-26 12913 Humboldt Grouse Mountain North Coast Ranges 1630 Comment
  CAS-BOT-BC215566  Monardella odoratissima subsp. pallida Joseph P. Tracy 1926-6-20 7657 Humboldt Horse Mountain 1310 Comment
  HSC57877  Monardella odoratissima subsp. pallida Overton, Butler 1979-7-31 11413 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  JEPS51853  Monardella odoratissima subsp. pallida Hilda W. Grinnell 1932-7-19 26 Humboldt Near Camp McKay on South Fork Mountain Comment
  CAS-BOT-BC220217  Monardella sheltonii Alice Eastwood; John Thomas Howell 1937-6-22 4744 Humboldt Near Blocksburg Comment
  UCR15548  Monardella villosa subsp. subserrata George K. Helmkamp 1978-7-15 s.n. Humboldt Prairie Creek Redwoods State Park 305 Comment
  UC673012  Montia diffusa Joseph P. Tracy 1937-6-27 15379 Humboldt w of mouth of South Fork Trinity River (Four-Mile Creek); Four-Mile Creek 670 Comment
  HSC55086  Montia parvifolia G. L. Clifton, Terry Griswold 1979-7-31 11753 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC45288  Morella californica Brad Klipfel 1974-4-27 314 Humboldt SW side of Big Lagoon. Comment
  HSC102098  Muhlenbergia filiformis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 985 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC70359  Myosotis discolor M. A. Baker 1980-6-7 1874 Humboldt Near Ammon Creek 732 Comment
  HSC37855  Myosotis micrantha Peter Sorensen 1976-6-2 Humboldt Woodley Island, Humboldt Bay Comment
  HSC78084  Myosurus minimus L. P. Janeway, K. Berg, Rudy Becking 1984-4-11 718 Humboldt N Spit of Humboldt Bay on BLM land 3 Comment
  RSA46886  Myrica californica Doris K. Kildale 1926-3-27 1551 Humboldt Big Lagoon. Comment
  HSC57707  Myriophyllum sibiricum G. L. Clifton, Terry Griswold 1979-7-25 10959 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC1173634  Narthecium californicum Joseph P. Tracy 1934-8-29 13629 Humboldt meadow at McKay Camp (S. Fork Mt.); S. Fork Mt. 1676 Comment
  HSC55152  Navarretia capillaris G. L. Clifton, Griswold 1979-8-1 12096 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC1197901  Navarretia capillaris Joseph P. Tracy 1935-7-28 14314 1/2 Humboldt head Devil's Hole , head of Devil's Hole (Trinity Summit) 1828 Comment
  JEPS70294  Navarretia divaricata Joseph P. Tracy 1932-7-11 10395 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1198597  Navarretia divaricata Joseph P. Tracy 1926-6-27 7689 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  UC908388  Navarretia divaricata Joseph P. Tracy 1932-7-11 10395 Humboldt Corral Prairie Trinity Summit 1584 Comment
  RSA43882  Navarretia intertexta H. M. Pollard 1948-7-18 s.n. Humboldt Near Orleans. Comment
  HSC35861  Navarretia mellita Thomas W. Nelson, James Nelson 1975-8-5 2132 Humboldt Along S spit of Humboldt Bay adjacent to jetty Comment
  JEPS70390  Navarretia mellita Joseph P. Tracy 1934-7-9 13333 Humboldt 5 mi s Harris 762 Comment
  UC133716  Navarretia pubescens Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5461 Humboldt Fruitland North Coast Ranges Comment
  UCD48693  Navarretia squarrosa John M. Tucker 1948-9-4 1862 Humboldt Beck's Ranch, Hydesville, Humboldt County, California. Comment
  JEPS70522  Navarretia viscidula Joseph P. Tracy 1916-6-20 4732 Humboldt Alder Point Northern Coast Ranges 152 Comment
  UC203962  Navarretia viscidula Joseph P. Tracy 1918-7-5 5036 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  SEINET10840156  Nemacladus capillaris Tracy 1930-7-10 TRACY 8865 Humboldt Brannan Mountain 1219 Comment
  JEPS3218  Nemophila heterophylla Joseph P. Tracy 1937-5-17 15292 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  UC1239751  Nemophila menziesii Joseph P. Tracy 1923-3-17 6158 Humboldt vicinity Garberville; vicinity of Garberville 121 Comment
  HSC13586  Nemophila menziesii Doris K. Kildale 1926-4-11 1762 Humboldt Buck Mtn. Comment
  HSC13585  Nemophila menziesii var. atomaria T. M. Mingo May 1965 Humboldt W of Fairhaven Dr. intersection with Hwy. 101 Comment
  RSA74751  Nemophila menziesii var. atomaria Albert M. Vollmer, L. Beane 1951-6-6 122 Humboldt On road between Orick and Weitchpec. Comment
  JEPS2982  Nemophila parviflora Joseph P. Tracy 1932-7-13 10492 Humboldt near Corral Prairie (Trinity Summit); , near Corral Prairie 1584 Comment
  CAS-BOT-BC233456  Nicotiana glauca Clare R. Wheeler 1979-8-13 1205 Humboldt Avenue of the Giants, SW Mailliard Grove, Humboldt State Park 152 Comment
  BLMAR149  Notholithocarpus densiflorus Donald Hazlett 1994-6-7 149 Humboldt King range, E-facing slope off horse mountain ridge 609 Comment
  UCD110212  Notholithocarpus densiflorus Joseph P. Tracy 1948-9-20 18224 Humboldt Willow Creek Canyon, along Trinity Highway. 457 Comment
  HSC60379  Nuphar polysepala J. M. DiTomaso 1979-4-22 908 Humboldt Crannell Rd. exit between Westhaven and McKinleyville Comment
  CAS-BOT-BC142251  Oemleria cerasiformis C. Hart Merriam 1918-8-11 s.n. Humboldt Blue Lake Comment
  CHSC35519  Oemleria cerasiformis Thomas Nelson 1976-3-22 2276 Humboldt On hillside beside Eureka Muni. Golf Course. Comment
  HSC18704  Oemleria cerasiformis D. E. Anderson 1962-2-25 1925 Humboldt 1 mi. W of Ferndale along Centerville Beach Rd. Comment
  HSC77345  Oemleria cerasiformis L. P. Janeway 1983-4-16 230 Humboldt Near the old Hwy. 299 on W side of Berry Summit. 823 Comment
  UC1198786  Oemleria cerasiformis Joseph P. Tracy 1926-2-28 7374 Humboldt near The South Fork (Trinity River Valley); Northern Coast Ranges 182 Comment
  HSC90660  Oenanthe sarmentosa Gail Newton 1982-6-10 3639 Humboldt Elk River Wildlife Area, Eureka Comment
  CDA38487  Oenanthe sarmentosa Tario 1932-9-27 s.n. Humboldt Arcata. 0 Comment
  CHSC70153  Oenothera glazioviana David K. Imper 1987-7-14 Humboldt South of Trinidad, waste area behind Matson home, just E. of US 101 near Moonstone Beach Exit. Comment
  HSC16523  Oenothera glazioviana David K. Smith 1968-11-20 68 Humboldt At jct. of Old Arcata Rd. and Jacoby Creek Rd. Comment
  RSA44496  Oenothera glazioviana H. M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region. Comment
  CDA38173  Oenothera villosa subsp. strigosa E. C. Whitney 1968-6-26 s.n. Humboldt 1440 Carson Woods Road. 0 Comment
  UC1197451  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1922-4-30 6001 Humboldt Trinity River Valley, near Willow Creek. Comment
  CAS-BOT-BC458028  Orthilia secunda Doris K. Kildale 1925-8-16 1155 Humboldt Trinity Summit Trail near forks of Tish-Tang-i-tang Comment
  UC1212578  Orthilia secunda Francia Chisaki and Helen Sharsmith 1959-8-21 4758 Humboldt Happy Camp just over line from trinity County 914 Comment
  POM296047  Orthocarpus erianthus var. gratiosus S. K. Harris 1942-6-10 1474 Humboldt Bear River Ridge. 457 Comment
  RSA97541  Orthocarpus erianthus var. gratiosus L. S. Rose 1954-4-25 54014 Humboldt Samoa. Region of type locality. Comment
  HSC56205  Orthocarpus imbricatus G. L. Clifton, Terry Griswold 1979-8-2 12197 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC74741  Osmorhiza berteroi Gail Newton 1981-7-24 2323 Humboldt Near Bug Creek Butte 1417 Comment
  UC154112  Osmorhiza berteroi J. P. Tracy 1906-5-20 2464 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC65513  Osmorhiza occidentalis M. A. Baker 1980-6-8 1907 Humboldt Near Buck Flat. 1554 Comment
  UC1197132  Osmorhiza occidentalis Joseph P. Tracy 1932-7-11 10420 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC16703  Oxalis oregana D. E. Anderson 1961-8-11 1726 Humboldt E of Humboldt State University campus 30 Comment
  HSC70969  Oxalis oregana R. York 1980-5-17 545 Humboldt Near Le Perron Creek. 415 Comment
  SEINET3347646 Image available Oxalis oregana Noel H. Holmgren, James L. Reveal 1966-6-8 2658 Humboldt Coast Range; East of Arcata, 1.5 miles S of Korbel 274 Comment
  UC302046  Oxalis trilliifolia Joseph P. Tracy 1926-5-22 7499 Humboldt Prairie Creek Northern Coast Ranges Comment
  SEINET12011449  Paeonia californica E. A. York 1990-1-10 2704 Humboldt USGS Redwood Field Station, Arcata Comment
  CAS-BOT-BC253708  Panicum capillare Peter Rubtzoff 1968-9-4 5956 Humboldt Goulds Bar, S Fork Eel River SE of Weott Comment
  RSA10050  Panicum capillare Joseph P. Tracy 1930-10-12 9207 Humboldt Eel River, Alton to Fortuna Comment
Read comments Oct 2 2011
  UC1103770  Panicum miliaceum subsp. miliaceum J. C. Tario Jr. 1931-8-20 Humboldt Eureka 30 Comment
  UC526842  Panicum oligosanthes var. scribnerianum Joseph P. Tracy 1927-8-7 8314 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  JEPS4478  Parentucellia viscosa Joseph P. Tracy 1923-6-18 6284 Humboldt 1 mi s of point Cape Mendocino; Northern Coast Ranges 152 Comment
  UCR275120  Parentucellia viscosa Charity A. Hartshorn 2016-4-24 22 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  HSC26880  Parentucellia viscosa Clifton Raymond Chesbrough 1973-6-19 87 Humboldt 0.5 mi. S of Trinidad along the coast Comment
  HSC37501  Paspalum dilatatum A. M. Montalvo, J. D. Ackerman 1975-8-9 629 Humboldt Arcata, Hwy. 101 and Guintoli Lane. Comment
  HSC20922  Pedicularis densiflora P. W. Shields May 1955 Humboldt 5 mi. W of Willow Creek Comment
  HSC20931  Pedicularis densiflora N. J. Cole 1965-3-19 3 Humboldt 5 mi. S of Weitchpec along Hwy. 96 Comment
  CAS-BOT-BC67769  Pellaea andromedifolia Doris K. Kildale 1926-4-30 1921 Humboldt Briceland Bridge, 1/2 mile west of Garbersville 114 Comment
  CAS-BOT-BC69338  Pellaea brachyptera Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Mt. 1828 Comment
  CHSC35535  Pellaea mucronata Thomas Nelson; James Nelson 1976-5-30 2612 Humboldt McKeown Ranch north of Dinsmore. Comment
  CAS-BOT-BC67623  Pellaea mucronata Donald Branscomb 1959-4-1 s.n. Humboldt Bear Butte, near Garberville. 853 Comment
  JEPS7209  Penstemon anguineus Joseph P. Tracy 1932-7-12 10454 Humboldt near Corral Prairie; Trinity Summit, near Corral Prairie 1584 Comment
  UC1245390  Penstemon anguineus Joseph T. Gregory 1935-7-23 722 Humboldt lower end of Brett Hole Trinity Summit, lower end of Brett Hole 1584 Comment
  UC354474  Penstemon azureus var. angustissimus P. E. Goddard 1906-6 666 Humboldt Lasseck Pk. Comment
  UC673099  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1940-5-5 16543 Humboldt Garberville Garberville (on river bar) 152 Comment
  UC585632  Penstemon laetus var. sagittatus Joseph P. Tracy 1937-7-24 15512 Humboldt 2 mi se Devil's Hole; Trinity Summit, se of Devil's Hole 1584 Comment
  HSC73689  Penstemon newberryi M. A. Baker 1980-7-24 3203 Humboldt Near Orleans Mtn. 1625 Comment
  HSC21104  Penstemon rattanii J. P. Tracy 1906-6-10 2480 Humboldt Kneeland Prairie 762 Comment
  UC103111  Penstemon rattanii Volney Rattan June 1878 Humboldt Comment
  HSC70388  Pentagramma triangularis Gail Newton 1980-6-7 143 Humboldt Near Brush Mtn. 1128 Comment
  RSA0070753  Pentagramma triangularis Doris K. Kildale 1928-12-29 6765 Humboldt Stevens Grove. Comment
  UC642250  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1932-7-14 10542 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1389979  Perideridia kelloggii T. I. Chuang and B. G. Briggs 1963-4-10 5084 Humboldt 2 mi w Bridgeville Comment
  HSC70535  Perideridia parishii subsp. latifolia Gail Newton 1980-7-20 1643 Humboldt Near Bell Swamps 1426 Comment
  HSC37362  Petasites frigidus var. palmatus Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 494 Humboldt Along Lost Man Creek. 38 Comment
  HSC79486  Petasites frigidus var. palmatus Kenneth Clark 1980-3-23 534 Humboldt South fork of Dead Man's Gulch 38 Comment
  UCD134927  Petasites frigidus var. palmatus R. N. Raynor 1935-3-13 s.n. Humboldt Fort Seward. Comment
  HSC63487  Petrorhagia dubia M. A. Baker 1977-6-6 381 Humboldt Hoopa Indian Reservation Comment
  HSC23998  Phacelia bolanderi Tim Baroni 1971-6-25 44 Humboldt Comment
  HSC103089  Phacelia corymbosa Sydney Carothers 2014-6-22 4 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  UC1199105  Phacelia egena Joseph P. Tracy 1938-5-1 15735 Humboldt Willow Creek Trinity River Valley (stony flat along river) 152 Comment
  UC660089  Phacelia heterophylla subsp. virgata G. L. Stebbins Jr. 1941-5-27 3111 Humboldt 1/4 mi w Bridgerville (on hwy to Eureka) Comment
  HSC57205  Phacelia mutabilis Griswold, Butler 1979-7-12 7160 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC74475  Phacelia mutabilis Gail Newton 1980-7-23 1754 Humboldt Near Packsaddle Ridge 1463 Comment
  UC906636  Phacelia mutabilis Joseph P. Tracy 1947-7-9 17832 Humboldt lower slopes Horse Mountain 1219 Comment
  UC526832  Phalaris aquatica Joseph P. Tracy 1927-9-18 8366 Humboldt Carlotta; Northern Coast Ranges, Carlotta 60 Comment
  JEPS43497  Philadelphus lewisii Lincoln Constance 1934-5-26 655 Humboldt near Founder's Tree; South Fork Eel River, Bull Creek Region, North Dyerville Fla 48 Comment
  JEPS49622  Philadelphus lewisii Harley P. Chandler June, 1901 1333 Humboldt Campbell Creek North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC154079  Philadelphus lewisii Joseph P. Tracy 1909-8-1 3060 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  SEINET12219858  Philadelphus lewisii subsp. californicus L. K. Henry 1971-1 s.n. Humboldt along Rt. 36, 2 mi E of Dinsmore in Six Rivers National Forest Comment
  RSA12538  Phleum alpinum C. B. Wolf 1934-7-2 5900 Humboldt Snow camp. (Mts. east of Korbel) 1372 Comment
  UC526749  Phleum pratense Joseph P. Tracy 1933-7-21 12822 Humboldt Valley of South Yager Creek 762 Comment
  UCD89642  Phleum pratense Joseph P. Tracy 1948-8-8 18089 Humboldt Lagna, near the school house. 609 Comment
Read comments Jun 16 2013
  HSC35709  Phlox adsurgens Thomas W. Nelson, B. Reinhardt 1975-7-30 2092 Humboldt Grouse Creek side of Last Chance Ridge. Comment
  HSC55333  Phlox adsurgens Griswold, Butler 1979-7-12 7177 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1198555  Phlox adsurgens Joseph P. Tracy 1929-7-4 8635 Humboldt French Camp Ridge 1066 Comment
  UCD118236  Phlox adsurgens H. P. Olmo 1928-6-10 s.n. Humboldt Wooley Creek. Comment
  HSC33147  Phlox diffusa Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1243 Humboldt Horse Mtn. area, E of microwave tower 1220 Comment
  UC1178963  Phlox douglasii subsp. rigida Joseph P. Tracy 1927-6-12 8126 Humboldt Horse Mountain 1432 Comment
  HSC15928  Phoradendron serotinum subsp. tomentosum M. C. Hartman 1963-5-11 35 Humboldt Berry summit Comment
  HSC36216  Phoradendron serotinum subsp. tomentosum John Rehling 1975-11-8 109 Humboldt Near Berry Summit, just off Hwy. 299 Comment
  SEINET11763301  Phyllospadix torreyi H. E. Parks 1933-1 s.n. Humboldt Spruce Cove, Trinidad Comment
  CAS-BOT-BC140585  Physocarpus capitatus Doris K. Kildale 1926-3-26 1651 Humboldt Old Fortuna Road 30 Comment
  CAS-BOT-BC78144  Picea breweriana Henry M. Pollard 1947-9-1 s.n. Humboldt North side of Somes Peak nr. Orleans 1618 Comment
  UCR48598  Picris echioides R. D. Goeden, Don W. Ricker 1987-9-2 870902- 12 Humboldt Loleta, along Cannibal Road 8 Comment
  SEINET10904948  Picris echioides Mary Susan Taylor 1977-8-5 Taylor 1431 Humboldt Abundant around bridge over Eel River, at the turnoff from Hwy 1 to Ferndale, in Fernbridge. 2 Comment
  SEINET11809969  Picris echioides J. P. Tracy 1948-1 18098 Humboldt 2 mi W of Bridgeville Comment
  HSC1478  Pinus contorta L. H. Myers 1963-5-13 21 Humboldt Dunes W of Lanpheres Rd., Mad River Slough area. Comment
  POM282097  Pinus contorta var. contorta H. E. Parks 1931-05 s.n. Humboldt Samoa, Pine Barrens. Comment
  POM319583  Pinus contorta var. contorta Patricia Wilder 1968-8-21 4408 Humboldt Northern coastal arm of Humboldt Bay, ca. 1 mile SW of Samoa, in sand dunes. 15 Comment
  UC212990  Pinus monticola Mrs. F. A. Graham 1919-8-1 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  UC650336  Pinus monticola Charles H. Bunting 1940-8-12 56 Humboldt n of, n slope of Bee Mountain Weitchpec; Bee Mountain 1082 Comment
  CAS-BOT-BC79026  Pinus ponderosa L. B. Kildale 1930-8-3 10354 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  UC502912  Pinus ponderosa Joseph P. Tracy 1929-4-28 8541 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC4590  Piperia candida Harley P. Chandler Jun 1901 1385 Humboldt Hupa Indian Reservation North Coast Ranges 304 Comment
  UC1488747  Piperia elegans J. D. Ackerman 1974-8-13 405 Humboldt ca 2 mi n Manila (between sand dunes and Mad River Slough) Comment
  UC1225849  Piperia elongata Joseph P. Tracy 1948-7-11 18073 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC14938  Piperia elongata Mrs. M. H. Manning Jul 1901 Humboldt near Hupa; Eureka Trail Comment
  HSC24556  Pityopus californicus Rudolf W. Becking 1972-6-30 720608 Humboldt Fish Lake area, Orleans 762 Comment
  HSC35168  Pityopus californicus S. Veirs, G. Lester, R. Yearout 1975-7-10 744 Humboldt Redwood National Park, Gann's Woods. 366 Comment
  UC1347181  Plagiobothrys bracteatus Alice Eastwood and John Thomas Howell 1937-6-23 4811 Humboldt Little Van Duzen River Comment
  UC526817  Plagiobothrys bracteatus Joseph P. Tracy 1933-7-20 12812 Humboldt near Blue Lake (in dry bed of slough); Mad River 15 Comment
  RSA226608  Plagiobothrys nothofulvus Norman Dennis 1965-6-11 114 Humboldt About 0.25 mile S and 1 mile E of the junction of Barry Ridge Road and the Eureka-Bridgeville county road, along Ashfield Ridge Road. About 5 miles SE of Kneeland. 793 Comment
  UC24546  Plagiobothrys reticulatus Harley P. Chandler May, 1901 1172 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  UC526821  Plagiobothrys reticulatus Joseph P. Tracy 1932-5-10 9962 Humboldt Mattole Valley near Petrolia; Northern Coast Ranges, Mattole Valley 30 Comment
  JEPS60970  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1938-7-5 16013 Humboldt flat by old Strong's District School House (5 mi e of town); Carlotta 45 Comment
  UC1180486  Plagiobothrys tenellus Robert Ornduff 1960-6-1 6179 Humboldt meadow on high ridge about 3 mi e Garberville (on road to Alder Point) Comment
  JEPS14285  Plantago erecta J. P. Tracy 1919-4-27 5133 Humboldt opposite Eureka (Ocean Beach); Samoa Comment
  UC585985  Plantago erecta Joseph P. Tracy 1932-5-10 9945 Humboldt near Petrolia; Northern Coast Ranges, Mattole Valley 60 Comment
  UC585986  Plantago erecta Joseph P. Tracy 1932-5-10 9930 Humboldt Bear River Bridge Northern Coast Ranges 609 Comment
  UCD124428  Plantago erecta D. E. Breedlove 1962-6-7 3046 Humboldt 1.5 miles south of Samoa on peninsula on west side of Humboldt Bay. 106 Comment
  OBI11640  Plantago lanceolata Joseph P. Tracy 1947-8-10 17882 Humboldt Eureka Comment
  HSC62906  Plantago maritima J. M. DiTomaso 1979-5-20 1057 Humboldt Above College Cove at Elks Head, 1 mi. N of Trinidad. Comment
  SJSU11079  Plantago maritima H. T. Harvey 1977-7-6 608 Humboldt S Spit, Humboldt Bay Comment
  RSA412592  Plantago purshii var. oblonga H. M. Pollard 1947-8-23 s.n. Humboldt Air Landing Field, west of Orleans. Comment
  RSA43877  Plantago purshii var. oblonga H. M. Pollard 1948-8-3 s.n. Humboldt New Orleans. Comment
  HSC99478  Platanthera sparsiflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 137 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), between Six Rivers National Forest boundary and Box Camp 1433 Comment
  HSC28091  Platanthera sparsiflora J. D. Ackerman, A. Montalvo 1973-7-4 92 Humboldt E boundary of Hoopa Indian Reservation, Big Hill Rd. Comment
  CAS-BOT-BC91640  Platystemon californicus Doris K. Kildale 1931-5-24 10847 Humboldt Little Laribee [Larabee], Laribee [Larabee] Valley. Comment
  HSC33745  Platystemon californicus A. M. Montalvo 1975-5-24 269 Humboldt Samoa Dunes, off Samoa Blvd. across from the boat landing Comment
  CAS-BOT-BC91635  Platystemon californicus Joseph P. Tracy 1932-6-26 10266 Humboldt Northern Coast Region.. Valley of South Yager Creek. 762 Comment
  UC169079  Plectritis brachystemon Harley P. Chandler 1901-6-6 1414 Humboldt North Coast Ranges, Klamath River, Saint's Rest, (Nature's Rest) Nature's Rest; North Coast Ranges, Klamath River, Saint's Rest 304 Comment
  UC176121  Plectritis congesta Joseph P. Tracy 1912-6-9 3652 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  HSC77949  Plectritis congesta subsp. brachystemon Jimerson, Imper 1982-5-17 1439 Humboldt Near Ashfield Ridge. 822 Comment
  HSC10613  Pleuropogon refractus R. D. Modaferri 1965-5-13 98 Humboldt 2.2 mi N of Trinidad on Trinity St. 274 Comment
  UC1145106  Pleuropogon refractus Joseph P. Tracy 1950-7-2 18961 Humboldt 6 mi. n.e. Hawkins Bar (at Fern Spring, Happy Camp Mt..); Trinity Summit Range, Happy Camp Mt., Fern Spring 1280 Comment
  UCD90101  Pleuropogon refractus A. A. Beetle; G. L. Stebbins Jr., J. P. Tracy 1942-6-2 3482 Humboldt branch of South Fork of Yager Creek. North of Yager. Comment
  SEINET179617  Pneumonanthe sceptrum H. E. Parks 1931-7-1 01052 Humboldt Bishop Pine Lodge,Trinidad, 76 Comment
  UC1145113  Poa annua Joseph P. Tracy 1937-5-17 15294 Humboldt Willow Creek; Trinity River Valley 152 Comment
  RSA10141  Poa bolanderi Joseph P. Tracy 1932-7-12 10464 Humboldt Klamath Mountains, Trinity Summit, Head of Brett Hole 1829 Comment
  HSC99416  Poa bulbosa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 65 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-BC255119  Poa confinis Joseph P. Tracy 1927-4-24 7947 Humboldt Eureka, near bay shore 9 Comment
  HSC10703  Poa douglasii L. H. Myers 1963-5-13 20 Humboldt Dunes W of Lanpheres Rd., Mad River Slough area. Comment
  UC187223  Poa howellii Joseph P. Tracy 1906-7-10 2486 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC10723  Poa kelloggii J. P. Tracy 1926-4-25 7415 Humboldt Grizzly Creek on Van Duzen River. Comment
  SEINET200573  Poa kelloggii Joseph P. Tracy 1911-6-4 3219 Humboldt Along Little River , Humbolt county , 5 miles from the coast 122 Comment
  BLMAR437  Poa macrantha Jennifer Anthony-Wheeler 2008-6-18 437 Humboldt Samoa/Malel Dunes 9 Comment
  CAS-BOT-BC254283  Poa macrantha Doris K. Kildale 1926-6-29 2243 Humboldt Mouth of Mad River Comment
  CAS-BOT-BC254284  Poa macrantha W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  HSC39179  Poa pratensis D. E. Anderson, J. P. Smith 1971-6-28 - 1222 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC70247  Poa pratensis M. A. Baker 1980-6-8 1916 Humboldt Near Buck Flat. 1554 Comment
  UCD91934  Poa pratensis A. H. Murphy 1947-6-10 s.n. Humboldt Fulton's Ranch, Bald Mtn. ca. 7 miles east of Blue Lake. Comment
  HSC102232  Poa pratensis subsp. pratensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1153 Humboldt Patterson Meadows 1566 Comment
  HSC98530  Poa pratensis subsp. pratensis Cara Witte 2007-7-8 442 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  HSC70237  Poa secunda subsp. secunda M. A. Baker 1980-6-8 1901 Humboldt Near Buck Flat. 1554 Comment
  HSC70904  Poa secunda subsp. secunda R. York 1980-5-18 598 Humboldt Near Black Mountain 792 Comment
  UC1152045  Poa secunda subsp. secunda Joseph P. Tracy 1951-6-26 19543 Humboldt 2 mi w Snow Camp (at Beck's Place, Hydesville) 1219 Comment
  UC525667  Poa secunda subsp. secunda Joseph P. Tracy 1927-5-15 8051 Humboldt w Hoopa Valley (Supply Creek); North Coast Ranges 304 Comment
  HSC99415  Poa trivialis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 64 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
  UC1103188  Poa trivialis Joseph P. Tracy 1938-6-17 15948 Humboldt 1 mi e Cape Mendocino (Cape Ridge) 304 Comment
  HSC35200  Polycarpon tetraphyllum Thomas W. Nelson 1975-11-3 2039 Humboldt 7th and H Sts., Eureka Comment
  HSC31205  Polygala californica D. E. Anderson 1972-6-20 5743 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  UC170193  Polygala californica Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  HSC64167  Polygala cornuta J. O. Sawyer, K. A. Sawyer 1979-6-24 3411 Humboldt Slopes alongside Aikens Creek. 366 Comment
  UC35075  Polygala cornuta var. cornuta Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  RSA506995  Polygonum amphibium var. emersum H. E. Parks 1934-08 5165 Humboldt Hulmboldt County: Big Lagoon, Host of rust Comment
  HSC17470  Polygonum aviculare P. W. Shields 1955-6-18 Humboldt HSC Campus Comment
  JEPS51269  Polygonum douglasii Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  CAS-BOT-BC414466  Polygonum douglasii Doris K. Kildale 1925-8-17 1231 Humboldt Trinity Summit - Waterdog Lake 1828 Comment
  UCD100266  Polygonum douglasii Joseph P. Tracy 1947-8-24 17922 Humboldt Box Camp Trail, Trinity Summit. 1676 Comment
  CAS-BOT-BC414718  Polygonum minimum Joseph P. Tracy 1932-7-18 10702 Humboldt Trinity Summit. Head of Brett Hole 1828 Comment
  HSC75441  Polygonum minimum J. O. Sawyer 1980-7-18 3608 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  CAS-BOT-BC109177  Polygonum paronychia Doris K. Kildale 1927-5-15 3165 Humboldt Beach at Cape Mendocino. Comment
  CAS-BOT-BC109181  Polygonum paronychia Alice Eastwood 1923-8-14 12314 Humboldt Samoa. Comment
  HSC103974  Polygonum paronychia C. Reynolds 2015-3-16 19 Humboldt Along Freshwater Beach, due south of the Kuchel Visitor Center 1 Comment
  JEPS51274  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1930-7-17 9010 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  RSA109297  Polygonum sachalinense H. E. Parks, S. T. Parks 1952-07 24448 Humboldt South of the Elk River Bridge on Hwy 10 Comment
  UC1222469  Polygonum sawatchense subsp. oblivium Joseph P. Tracy 1935-7-14 14082 Humboldt Grouse Mountain 1524 Comment
  HSC53800  Polygonum spergulariiforme Griswold, Butler 1979-7-10 6221 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  UC709395  Polypodium Joseph P. Tracy 1941-3-26 16835 Humboldt at Willow Creek Willow Creek; Trinity River Valley 152 Comment
  SEINET182509 Image available Polypodium glycyrrhiza H. E. Parks 1924-6-1 2837 Humboldt Lawrence Creek Comment
  CAS-BOT-BC72085  Polypodium scouleri W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  HSC1140  Polypodium scouleri J. W. Johnson 1962-3-9 1180 Humboldt On a bank above the Hunt Lane between the gate and barn Comment
  UC183480  Polypogon interruptus Joseph P. Tracy 1912-7-26 3834 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC39751  Polypogon interruptus Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5520 Humboldt near Pepperwood; near Pepperwood Comment
  UC526771  Polypogon interruptus Joseph P. Tracy 1927-7-16 8260 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  UC526769  Polypogon maritimus Joseph P. Tracy 1930-10-19 9236 Humboldt Eel River on gravel bars Alton to Fortuna; Eel River 15 Comment
  UCD91207  Polypogon maritimus Joseph P. Tracy 1939-8-5 16377 Humboldt Along Van Duzen River, Opposite Buck Mountain. Dinsmore's. 762 Comment
  CHSC31286  Polypogon monspeliensis Mark Stopher 1980-7-18 121 Humboldt On banks of Elk River, south of Eureka. Comment
  HSC38920  Polypogon monspeliensis Linda M. Barker 1976-6-1 1552 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC65445  Polypogon monspeliensis J. P. Smith 1973-5-26 6813 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC1103194  Polypogon monspeliensis Joseph P. Tracy 1918-7-1 4966 Humboldt along Eel River from South Fork to Scotia Holmes Flat; Northern Coast Ranges, along Eel River 60 Comment
  SEINET11681498  Polypogon monspeliensis H. P. Chandler 1901-1 1431 Humboldt Klamath River, North Coast Ranges 335 Comment
  CAS-BOT-BC76763  Polystichum imbricans subsp. imbricans L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road. Comment
  UC1223547  Polystichum imbricans subsp. imbricans Joseph P. Tracy 1951-6-24 19540 Humboldt near Ashfield Butte Ashfield Butte; Kneeland Prairie 762 Comment
  CAS-BOT-BC76665  Polystichum munitum Doris K. Kildale 1926-7-22 2414 Humboldt Metropolitan, woods near Canyon Park. Comment
  SEINET6840758  Polystichum munitum R. A. Evers 1962-9-1 75334 Humboldt Patrick Point State Park. Comment
  UCD136553  Polystichum munitum K. Esau 1934-5-8 s.n. Humboldt Near Fort Seward. 457 Comment
  JEPS33236  Polystichum scopulinum Lincoln Constance 1934-6-4 824 Humboldt S Fork Eel River Bull Creek Region Comment
  HSC87081  Populus trichocarpa Anthony J. Desch, Bryon Cariss 1988-4-23 66 Humboldt 3.7 mi. N of Hwy. 299 on Stover Rd. 244 Comment
  JEPS64523  Populus trichocarpa W. L. Jepson 1936-8-17 17935 Humboldt Mad River near Arcata; Mad River Comment
  UC492234  Populus trichocarpa Joseph P. Tracy 1932-4-24 9801 Humboldt South Fork of Eel River between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  HSC45347  Potamogeton natans R. York 1978-4-8 125 Humboldt Between Arcata and Eureka along Hwy. 101 0 Comment
  HSC36301  Potamogeton richardsonii Camille Cornish 1973-10-10 5 Humboldt Edge of Freshwater Lagoon Comment
  CAS-BOT-BC143077  Potentilla anserina subsp. pacifica L. R. Abrams 1916-7-18 6130 Humboldt Arcata to Trinidad Comment
  HSC18724  Potentilla anserina subsp. pacifica S. J. Hawks 1965-5-14 66 Humboldt 2 mi. NW of McKinleyville Comment
  HSC90640  Potentilla anserina subsp. pacifica Gail Newton 1982-6-10 3605 Humboldt Elk River Wildlife Area, Eureka Comment
  CAS-BOT-BC143081  Potentilla anserina subsp. pacifica Malcom A. Nobs; S. Galen Smith 1949-8-3 1161 Humboldt 1 mile south of Fields Landing, Eel River Valley Comment
  HSC79389  Potentilla anserina subsp. pacifica Kenneth Clark 1980-5-10 652 Humboldt Shelter Cove, western beach of Point Delgada at 10 ft. above high tide Comment
  HSC102139  Potentilla glandulosa subsp. glandulosa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1043 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC44757  Potentilla gracilis Maralyn O'Meara 1972-6-8 82 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  HSC75483  Potentilla gracilis var. fastigiata J. O. Sawyer 1980-7-18 3603 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  RSA135410  Potentilla palustris Volney Rattan 1883-6-4 s.n. Humboldt 3 miles from Eureka Comment
  HSC44447  Prosartes hookeri Brad Klipfel 1975-5-30 658 Humboldt N of Horse Mtn. Comment
  SBBG980  Prosartes hookeri H. and M. Dearing 1933-5-16 254 Humboldt Weott Comment
  HSC15460  Prosartes hookeri D. E. Anderson 1963-5-25 2489 Humboldt 0.5 mi. S of Capetown Comment
  SBBG58724  Prosartes smithii R. Hartwell 1938-8-3 101 Humboldt near Garberville Comment
  SBBG982  Prosartes smithii H. and M. Dearing 1933-5-16 256 Humboldt near Weott Comment
  CAS-BOT-BC517503  Prosartes smithii H. C. Cantelow 1936-5-17 s.n. Humboldt 3 miles east of Orick Comment
  CAS-BOT-BC517504  Prosartes smithii H. C. Cantelow 1936-5-18 1342 Humboldt 3 miles E of Orick Comment
  SD39117  Prosartes smithii Marie Cummings 1933-4-18 21 Humboldt Russ Park, near Ferndale. Comment
  CDA5736  Prunella vulgaris T. C. Fuller 1958-6-17 596 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  POM283387  Prunella vulgaris var. lanceolata Lyman Benson 1928-7-12 404 Humboldt Weott Ranger Station; Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  UC1402061  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-18 622 -30 Humboldt Comment
  CAS-BOT-BC158599  Prunus C. Hart Merriam 1921-7-7 s.n. Humboldt Top of South Fork River ridge Comment
  CAS-BOT-BC159974  Prunus emarginata Mrs. H. C. Cantelow 1939-6-8 s.n. Humboldt South Fork Mts. Blake Lookout Road, 7.2 miles from Junction Alton. Red Bluff Highway Comment
  HSC56106  Prunus emarginata G. L. Clifton 1979-7-31 11856 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC98967  Prunus emarginata var. emarginata Cara Witte 2007-9-3 641 Humboldt Forest Service Road 5N10. 1/4 mile east of intersection with National Forest 1. 1415 Comment
  UC154497  Prunus virginiana var. demissa Joseph Burtt Davy and Walter C. Blasdale 1899-5 5703 Humboldt Hoopa Valley; North Coast Ranges, Hoopa Valley Comment
  CAS-BOT-BC356655  Pseudognaphalium californicum Joseph P. Tracy 1937-7-11 15415 Humboldt Vicinity of Garberville 121 Comment
  HSC95588  Pseudognaphalium stramineum Andrea Pickart 2002-7-3 162 Humboldt Lanphere Dunes: Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 0 Comment
  SD39794  Pseudognaphalium stramineum Edith A. Purer 1932-7-27 4128 Humboldt Samoa Comment
  UC1222889  Pseudognaphalium thermale Joseph P. Tracy 1950-9-22 19376 Humboldt below 8 mi Orleans (near Slate Creek); Klamath River 121 Comment
  CAS-BOT-BC80114  Pseudotsuga menziesii Doris K. Kildale 1927-5-7 3114 Humboldt Elk Ridge Comment
  HSC98757  Pseudotsuga menziesii Cara Witte 2008-7-2 814 Humboldt Board Camp Mountain. Road to Tri Board Camp. Forest Service Road 4N38. 1574 Comment
  HSC74451  Pseudotsuga menziesii var. menziesii Gail Newton 1980-8-10 1991 Humboldt Near Blake Mtn. 1798 Comment
  UC63997  Pseudotsuga menziesii var. menziesii Mrs. M. H. Manning 1902-4-7 Humboldt Comment
  UC1222911  Psilocarphus oregonus Joseph P. Tracy 1949-8-11 18479 Humboldt 2 to 6 mi s Grouse Mt. (e of headwaters of Redwood Creek); Kinsey Ridge 1402 Comment
  UC1222909  Psilocarphus tenellus Joseph P. Tracy 1946-5-30 17543 Humboldt 5 mi e Carlotta (by old Strong's District School House, and at Riverside Park nearby) 60 Comment
  JEPS60088  Pteridium aquilinum var. pubescens Lincoln Constance 1934-6-13 876 Humboldt Bull Creek Region, S. Fork Eel R. Comment
  CAS-BOT-BC460596  Pyrola aphylla Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC76588  Pyrola asarifolia subsp. bracteata Michael Ericksen 1981-8-31 1112 Humboldt Near Last Chance Trail 1335 Comment
  HSC17970  Pyrola asarifolia subsp. bracteata J. Wendell Howe 1930-6-28 Humboldt Kneeland Prairie, edge of Redwood Belt Comment
  HSC41260  Pyrola dentata Brad Klipfel 1974-7-23 452 Humboldt Horse Mtn., N of the towers Comment
  HSC99085  Pyrola dentata Cara Witte 2007-6-26 355 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36A. 1348 Comment
  CAS-BOT-BC36510  Quercus Doris Kildale 1931-5-10 10580 Humboldt Snow Camp 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
  HSC40858  Quercus chrysolepis Thomas W. Nelson 1976-7-9 2988 Humboldt Ridge S of the E peak of the Lassic Peak (Signal peak) group. 1707 Comment
  UC54678  Quercus chrysolepis Harley P. Chandler Jun 1901 1435 Humboldt Klamath River North Coast Ranges 304 Comment
  RSA44460  Quercus chrysolepis var. nana H. M. Pollard 1947-9-1 s.n. Humboldt Somes Mt. near summit, Orleans region. Comment
  UCSB1171  Quercus garryana C. Muller 1954-6-21 9641 Humboldt 2 MI ESE OF MAD RIVER ON RD TO FOREST GLEN OLSEN CREEK Comment
  HSC102516  Quercus garryana var. breweri M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1502 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC8262  Quercus kelloggii Doris K. Kildale 1926-7-25 2432 Humboldt Briceland Bridge, 1/2 mi. W of Garberville 114 Comment
  UC672858  Quercus kelloggii Joseph P. Tracy 1940-9-15 16723 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC75961  Quercus sadleriana Overton, Butler 1979-8-2 12593 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC37839  Quercus vacciniifolia Thomas W. Nelson, Jane P. Nelson 1976-2-21 2245 Humboldt Beside the Hoopa-Redwood Valley Rd. ca. 5 mi. W of Hoopa Comment
  SEINET3136624  Quercus vacciniifolia R. W. Spellenberg 1990-7-10 10245 Humboldt Extreme E edge of co., 8 mi WSW of Salyer at 6 mi S of Berry Summit (on Calif. Hwy 299) on USFS 1, S4 T5N R4E 1372 Comment
  UCR165264  Quercus vacciniifolia J. M. Tucker 1948-9-3 1851 Humboldt Six Rivers National Forest (formerly part of Trinity National Forest) on Horse Mountain at junction of road to Grouse Mt. and road to Horse Mt. Mine 1463 Comment
  HSC18140  Ranunculus californicus var. californicus R. T. Forester 1963-3-31 37 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  HSC18160  Ranunculus occidentalis var. occidentalis Harvey Doerksen 1962-5-22 30 Humboldt Camp Bauer, across Mad River from Korbel Comment
  HSC36501  Ranunculus occidentalis var. occidentalis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1890 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  UC1196249  Ranunculus orthorhynchus var. orthorhynchus J. P. Tracy 1901-6-10 1123 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC98651  Ranunculus orthorhynchus var. platyphyllus Cara Witte 2008-6-9 694 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1454 Comment
  POM118708  Ranunculus repens Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  SD93107  Ranunculus repens W. Bertsch 1953-7-30 Humboldt Five miles north of Arcata Comment
  JEPS81053  Ranunculus sardous Thomas Nelson and Doris Niles 1979-5-19 4696 Humboldt Crab Park Ferndale Quad., Eel River (tidal marsh mouth of river, n of County Park) Comment
Read comments Sep 9 2008
  UC13973  Ranunculus uncinatus Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  HSC18195  Ranunculus uncinatus var. parviflorus E. W. Styskel 1963-5-19 40 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 305 Comment
  HSC89466  Raphanus sativus P. A. Daly 1986-3-12 104 Humboldt Trinidad Head 61 Comment
  RSA7790  Rhamnus californica Carl B. Wolf 1927-8-30 1249 Humboldt 3 miles S of Thorn3 miles S of Tom's Place Comment
  CAS-BOT-BC55967  Rhamnus ilicifolia Volney Rattan 1882-6-1 s.n. Humboldt unspecified Comment
  JEPS41950  Rhamnus purshiana W. L. Jepson 1902-6-24 1932 Humboldt Angel's Ranch to Korbel 365 Comment
  UC630477  Rhamnus purshiana H. E. and S. T. Parks 1935-5-1 5541 Humboldt Spruce Cove Trinidad 64 Comment
  HSC7831  Rhododendron columbianum J. Pursell 1964-10-6 1061 Humboldt Big Lagoon Bog Comment
  CAS-BOT-BC56616  Rhododendron macrophyllum Mrs. A. H. Rodda 1932-5-20 s.n. Humboldt Redwood Highway Comment
  HSC76365  Rhododendron macrophyllum Denis Kearns 1981-7-6 66 Humboldt Near Mosquito Lake 1256 Comment
Read comments Jul 30 2014
  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
  HSC76366  Rhododendron occidentale var. paludosum Teresa Prendusi 1981-7-23 346 Humboldt Near Black Mtn. 890 Comment
  UC535710  Ribes Eleanor Armstrong 1934-8-23 1153 Humboldt Richardson Grove 121 Comment
  HSC103208  Ribes binominatum Jade Paget-Seekins 2010-7-5 37 Humboldt On the trail to Mill Creek Lake, up Big Hill Road, outside of Hoopa. 1655 Comment
  CAS-BOT-BC92881  Ribes bracteosum M. Louise Hutchinson 1913-5-1 s.n. Humboldt Eureka. Comment
  UC1046563  Ribes bracteosum R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3407 Humboldt near High Prairie (on long high ridge between Mad River and Redwood Creek); Bald Mountain 1066 Comment
  RSA0025006  Ribes divaricatum Lyman Benson 1929-7-19 1875 Humboldt Mouth of Matole [Mattole] River. Comment
  UC667073  Ribes inerme var. klamathense Joseph P. Tracy 1939-5-6 16281 Humboldt opposite mouth Willow Creek (Lack Pond); Trinity River Valley 152 Comment
  HSC57642  Ribes lacustre G. L. Clifton, Griswold 1979-7-25 10806 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  JEPS49357  Ribes lacustre W. L. Jepson 1902-7-15 2030 Humboldt Mud Spring to Trinity Summit 1524 Comment
  UC1198907  Ribes laxiflorum J. P. Tracy 1901-6-10 1122 Humboldt immediate vicinity Eureka 0 Comment
  HSC70746  Ribes lobbii R. York 1980-5-17 537 Humboldt Near Le Perron Peak 1066 Comment
  JEPS49360  Ribes lobbii Jos. P. Tracy 1913-6-17 4189 Humboldt near summit Buck Mt. Comment
  UC667058  Ribes lobbii Joseph P. Tracy 1935-5-12 13801 Humboldt summit between North Fork Mad River and Redwood Creek (on Trinity Highway) 670 Comment
  HSC100492  Ribes lobbii Carl C. Marshall Jul 1886 264 Humboldt Coyote Camp, Lyon's Range. Comment
  CAS-BOT-BC206045  Ribes menziesii L. R. Abrams 1916-7-11 6033 Humboldt Mouth of Grizzly Creek on Van Duzon [Duzen] River Comment
  UC583437  Ribes menziesii Elmer I. Applegate 1931-3-28 6625 Humboldt Trinidad, type locality Trinidad Comment
  RSA0021766  Ribes menziesii Joseph P. Tracy 1921-4-4 5428 Humboldt Near Korbel, at Camp Bauer. 30 Comment
  UC1222374  Ribes roezlii Joseph P. Tracy 1950-8-4 19255 Humboldt at head Canoe Creek; Bull Creek State Park, Grasshopper Peak Comment
  UC161562  Ribes roezlii Joseph P. Tracy 1911-7-5 3309 Humboldt near mouth Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  UC1198949  Ribes roezlii var. amictum Joseph P. Tracy 1922-4-2 5985 Humboldt near Carlotta; Northern Coast Ranges, Van Duzen River 60 Comment
  BLMAR269  Ribes roezlii var. cruentum Jennifer Anthony-Wheeler 1999-7-30 269 Humboldt Lacks Creek, growing in Hupa mt quad 1219 Comment
  BLMAR596  Ribes roezlii var. cruentum Jennifer Wheeler 2010-9-14 596 Humboldt Lacks Creek, along Pine Ridge Road 975 Comment
  CAS-BOT-BC198900  Ribes roezlii var. cruentum L. R. Abrams 1918-6-16 7198 Humboldt Willows Creek Comment
  UC902081  Ribes roezlii var. cruentum Joseph P. Tracy 1949-7-19 18378 Humboldt Grouse Mountain 1280 Comment
  UC11646 Image available Ribes sanguineum Harley P. Chandler June, 1901 1287 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC1585362  Ribes sanguineum R. Raiche, K. Zadnick, and H. Forbes 1989-10-2 UCBG 24 Humboldt sw Hoopa (Gair Rd. at Pine Ridge Summit) 972 Comment
  CAS-BOT-BC144677  Ribes sanguineum var. glutinosum Ira L. Wiggins 1930-6-25 4617 Humboldt Sand dunes 2 miles north of Samoa Comment
  CAS-BOT-BC144681  Ribes sanguineum var. glutinosum W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  HSC103221  Ribes sanguineum var. sanguineum Jade Paget-Seekins 2010-5-2 14 Humboldt Off 299 between Big Bar and Burnt Ranch. Up Forest Route 4 approx. 8 miles. At the turnoff towards Ironside Mountain. 1057 Comment
  HSC48397  Ribes viscosissimum Brad Klipfel 1973-6-10 104 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC69840  Romanzoffia californica R. Kalal 1979-5-6 52 Humboldt Trinidad Head 30 Comment
  UC552249  Romanzoffia californica Joseph P. Tracy 1928-4-29 8424 Humboldt Prairie Creek North Coast Ranges, Prairie Creek 60 Comment
  HSC59061  Romanzoffia californica Thomas Wood 1979-4-20 124 Humboldt At Trinidad Bay 2 Comment
  UC1541376  Romanzoffia tracyi Parks and Tracy March 1934 8132 Humboldt heads opposite Spruce Cove (Trinidad); , Spruce Cove Comment
  CAS-BOT-BC74505  Rorippa curvisiliqua Doris K. Kildale 1926-4-11 1767 Humboldt Van Duzen River at Alton. 30 Comment
  JEPS53873  Rorippa curvisiliqua Lincoln Constance 1934-5-27 691 Humboldt gravel bar of South Fork Eel River s end Dyerville Bridge; Bull Creek Region, South Fork Eel River 45 Comment
  OBI5836  Rosa eglanteria Carl B. Wolf 1931-8-28 2363 Humboldt 1/8 mi from Rohnerville on road to Fortuna 30 Comment
  UC527555  Rosa eglanteria C. B. Wolf 1931-8-28 2363 Humboldt 1/8 mi from kRohnerville on road to Fortuna Comment
  CAS-BOT-BC146482  Rosa gymnocarpa Ira L. Wiggins 1930-7-22 4695 Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  CAS-BOT-BC146826  Rosa nutkana Doris K. Kildale 1927-6-28 3606 Humboldt Mad River near covered bridge on Redwood Highway Comment
  CAS-BOT-BC146828  Rosa nutkana H. E. Parks; S. T. Parks 1937-5-1 5816 Humboldt Spruce Cove, Trinidad 60 Comment
  SBBG27214  Rosa nutkana D. K. Kildale 1927-6-28 Humboldt Mad River at covered bridge Comment
  UC709450  Rosa nutkana subsp. macdougalii Joseph P. Tracy 1941-6-29 16965 Humboldt lower foothills of nw slope Buck Mountain 762 Comment
  JEPS47247  Rosa nutkana var. nutkana W. L. Jepson 1936-8-17 17922 Humboldt 2 1/2 mi s Fields Landing (bordering marsh) Comment
  CAS-BOT-BC146500  Rosa pisocarpa subsp. pisocarpa Joseph P. Tracy 1947-7-5 17814 Humboldt Trinity Summit, near Box Camp 1524 Comment
  CAS-BOT-BC146877  Rosa rubiginosa Doris K. Kildale 1926-8-31 2608 Humboldt Union Mattole, Mattole River Valley Comment
  CAS-BOT-BC146881  Rosa rubiginosa Doris K. Kildale 1925-11-1 1343 Humboldt Big Lagoon Comment
  HSC19620  Rosa rubiginosa J. R. Lippincott 1967-7-16 10 Humboldt 1 mi. E of Blue Lake on Hwy. 299 Comment
  UC14221  Rosa spithamea Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  CAS-BOT-BC148223  Rosa spithamea Volney Rattan 1883-6-1 s.n. Humboldt Trinity River, from Hyampom to Hoopa Comment
  HSC56985  Rubus armeniacus Overton, Butler 1979-7-23 9530 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  RSA89565  Rubus discolor Philip A. Munz 1954-7-23 19864 Humboldt 5 miles SE of Carlotta Comment
  RSA89566  Rubus discolor Philip A. Munz 1954-7-23 19864 Humboldt 5 miles SE of Carlotta Comment
  JEPS47690  Rubus leucodermis Lincoln Constance 1934-5-24 635 Humboldt bordering lower Look Prairie on e side , Bull Creek Region (South Fork Eel River) 121 Comment
  CAS-BOT-BC147248  Rubus parviflorus Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway Comment
  HSC104043  Rubus parviflorus C. Reynolds 2015-4-25 37 Humboldt At Redwood Creek Trailhead, off Bald Hills Road 20 Comment
  HSC74809  Rubus parviflorus Gail Newton 1980-7-22 1689 Humboldt Near Devils Backbone 1545 Comment
  NY1043364  Rubus parviflorus D. K. Gillespie 1938-8-6 15397 Humboldt Eureka Comment
  UCR32042  Rubus parviflorus David J. Keil 1983-7-1 17292 Humboldt Between Ferndale & Bear River Ridge Road along Mattole Road Comment
  CHSC68502  Rubus spectabilis Vernon H. Oswald 1997-4-10 8315 Humboldt Clam Beach between Arcata and Trinidad. Bordering a creek on the back beach. 30 Comment
  HSC100638  Rubus spectabilis Carl C. Marshall Apr 1886 165 Humboldt Everywhere in rich soils. Comment
  HSC28139  Rubus spectabilis J. D. Ackerman, A. M. Montalvo 1973-3-27 41 Humboldt 1.5 mi. N of Manila Comment
  UC719828  Rubus ursinus Rogers McVaugh 1941-8-3 6220 Humboldt ca 1 1/4 mi s H.Q. Patrick's Point State Park; s of H.Q. Patrick's Point State Park Comment
  UCD17611  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 054 Humboldt California. Humboldt County: 100 yards west of junction of U.S. 101 on road through Humboldt State Redwood Park. Comment
  HSC101448  Rubus ursinus subsp. macropetalus Cara M. Witte 2008-6-27 761 Humboldt Approximately 1.5 miles south of intersection of National Forest 1 and 5N04 1546 Comment
  HSC99000  Rubus ursinus subsp. ursinus Cara Witte 2008-7-16 906 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  HSC56448  Rudbeckia klamathensis Griswold, Butler 1979-7-12 7201 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC17582  Rumex acetosella F. Morrell 1949-5-14 23 Humboldt Hoopa Comment
  HSC40030  Rumex acetosella Thomas W. Nelson, Jane Nelson 1976-6-22 2876 Humboldt On SW-facing slope at Goat Mtn. lookout 1666 Comment
  HSC17604  Rumex persicarioides D. E. Anderson 1961-9-13 1812 Humboldt Trinidad Beach Comment
  UC296201  Ruppia maritima H. E. Parks 1757 Humboldt Little River Lagoon Comment
  CAS-BOT-BC454159  Ruppia maritima Robert F. Thorne; P. Everett 1965-8-7 35208 Humboldt Samoa Peninsula: Elev. c. near sea level Comment
  RSA249519  Ruppia maritima Robert F. Thorne, Percy C. Everett 1965-8-7 35208 Humboldt Samoa Peninsula. 0 Comment
  UC275481  Sagina apetala Joseph P. Tracy 1925-5-30 7015 Humboldt at Kemp's Maple Grove Ranch Bridgeville; Northern Coast Ranges, , Kemp's Maple Grove Ranch 228 Comment
  POM318824  Salicornia Patricia Wilder 1968-8-21 4416 Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  JEPS93952  Salicornia virginica Vernon H. Oswald 1998-9-2 9562 Humboldt Humboldt Bay National Wildlife Refuge s of Eureka (Hookton Slough Trail on the levee along s side of Hookton Slough); Humboldt Bay National Wildlife Refuge, Hookton Slough Comment
  JEPS12968  Salix exigua Joseph P. Tracy 1931-9-7 9642 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC512027  Salix exigua var. hindsiana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1331 Humboldt near bridge on Trinity Hwy. (in ... channel of Trinity R.) 152 Comment
  CAS-BOT-BC107679  Salix hookeriana Doris K. Kildale 1926-7-18 2389 Humboldt Near mouth of Redwood Creek 15 Comment
  CHSC96696  Salix hookeriana Gordon Leppig 1999-4-15 1120 Humboldt Big Lagoon County Park, Big Lagoon Bog. On western edge of fen. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  HSC20071  Salix hookeriana J. P. Tracy, H. E. Parks 1931-3-26 904 Humboldt Lower Van Duzen River near Alton Comment
  JEPS12958  Salix hookeriana Joseph P. Tracy 1931-8-9 9609 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  POM161042  Salix hookeriana Joseph P. Tracy 1926-11-21 7831 Humboldt Near mouth of Little River. 6 Comment
  UC1196673  Salix hookeriana Joseph P. Tracy 1925-11-15 7315 Humboldt Table Bluff Northern Coast Region, around Humboldt Bay (same region as #6929) 60 Comment
  UC470437  Salix hookeriana Joseph P. Tracy 1931-10-18 9738 Humboldt Camp Grant Northern Coast Ranges, Eel River 60 Comment
  UC481262  Salix hookeriana Harold E. Parks 1931-5-28 999 Humboldt Little River Lagoon Comment
  UC481378  Salix hookeriana Harold E. Parks and J. P. Tracy 1931-3-26 904 Humboldt on Van Duzen River Alton; Van Duzen River 15 Comment
  UC504053  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 5 Humboldt around Eureka Comment
  UC512094  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1215 Humboldt 1 mi n Samoa (pine barrens near coast) Comment
  UC519387  Salix laevigata Joseph P. Tracy 1933-6-9 12528 Humboldt along Eel R. Shively; Northern Coast Ranges, , Eel R. 30 Comment
  UC518902  Salix lasiandra subsp. lasiandra Jim Davis Apr 25 1933-Apr 27 1933 1 Humboldt around Eureka Eureka Comment
  RSA0038347  Salix lasiandra var. lancifolia Harold E. Parks 1931-5-14 0959 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  CAS-BOT-BC125217  Salix lasiandra var. lasiandra W. J. Ferlatte 1967-6-13 1122 Humboldt North bank of Mad River 1/4 mi. east of hwy. 101 6 Comment
  CAS-BOT-BC107589  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1318 Humboldt On banks of Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  CAS-BOT-BC107593  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1324 Humboldt In dry ravines on west slope of Berry's Mountain, east of Redwood Creek, on Trinity Highway 762 Comment
  CAS-BOT-BC107594  Salix lasiolepis Harold E. Parks; Susan T. Parks 1931-8-15 1079 Humboldt Blue Slide, Van Duzen River 100 Comment
  CAS-BOT-BC107611  Salix lasiolepis Joseph P. Tracy; Harold E. Parks; Carleton R. Ball 1932-5-13 1253 Humboldt On gravelly floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  JEPS12931  Salix lasiolepis Joseph P. Tracy 1931-5-31 9328 Humboldt Redwood Creek at Berry's; Northern Coast Ranges 274 Comment
  UC469417 Image available Salix lasiolepis Joseph P. Tracy 1927-8-7 8305 Humboldt Redwood Creek, at Berry's 274 Comment
  UC469421  Salix lasiolepis Joseph P. Tracy 1930-6-15 8737 Humboldt near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  UC469432  Salix lasiolepis Joseph P. Tracy 1931-10-3 9701 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC481808  Salix lasiolepis H. P. Bracelin 1931-5-1 269 Humboldt Sylvandale, between Miranda and Meyers South Fork of Eel River Comment
  UC506378  Salix lasiolepis Joseph P. Tracy 1932-10-2 10858 Humboldt near Bair's; Northern Coast Ranges, Redwood Creek 213 Comment
  UC511983  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1247 Humboldt Van Duzen R. at Blue Slide; Van Duzen R., Blue Slide 91 Comment
  UC512007  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1233 Humboldt 1 1/2 mi E of Alton ( Van Duzen River) 30 Comment
  UC519329  Salix lasiolepis Joseph P. Tracy 1933-5-14 12181 Humboldt Willow Creek, near county road bridge Trinity River Valley 152 Comment
  UC519344  Salix lasiolepis Joseph P. Tracy 1933-10-15 13090 Humboldt along river near Miranda; Coast Ranges, South Fork of Eel River 91 Comment
  CAS-BOT-BC107410  Salix lasiolepis var. lasiolepis Doris K. Kildale 1927-5-13 3148 Humboldt Redwood Creek at Berry's 289 Comment
  RSA10903  Salix lasiolepis var. sandbergii Joseph P. Tracy 1933-4-2 10959 Humboldt Berry's Mountain. On Trinity Hwy. E of Redwood Creek. 762 Comment
  RSA475257  Salix lucida subsp. lasiandra Lyman D. Benson 1929-7-15 1809 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  JEPS12970  Salix melanopsis Joseph P. Tracy 1931-9-19 9682 Humboldt Van Duzen River Alton; Northern Coast Region 30 Comment
  JEPS13080  Salix melanopsis Joseph P. Tracy 1939-8-5 16393 Humboldt Van Duzen River at Dinsmore's 737 Comment
  POM219685  Salix melanopsis H. E. Parks 1931-5-14 965 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  SBBG29038  Salix melanopsis H. E. Parks 1931-5-14 965 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  SBBG57930  Salix melanopsis H. E. Parks, J. P. Tracy 1931-5-17 972 Humboldt mouth of Willow Crk at Trinity River 150 Comment
  UC1196574  Salix melanopsis Joseph P. Tracy 1931-5-16 9615 Humboldt vicinity of Garberville (S. Fork Eel R. at Redway); North Coast Ranges, S. Fork Eel R., Redway 121 Comment
  UC275492  Salix melanopsis Joseph P. Tracy 1925-7-26 7209 Humboldt near S. Fork Trinity River Valley; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC481293  Salix melanopsis Harold E. Parks 1931-5-14 965 Humboldt between Alton and Carlotta (Van Duzen R.); Van Duzen R. 15 Comment
  UC481828  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 284 Humboldt 6 km. s. Alton (e. of Redwood Hwy.) 20 Comment
  UC490570  Salix melanopsis Joseph P. Tracy 1932-6-4 10129 Humboldt Bridgeville Northern Coast Ranges, Bridgeville 228 Comment
  UC512011  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1234 Humboldt 1 1/2 mi. e. Alton (floodplain of Van Duzen R.); Van Duzen R. 30 Comment
  UC519364  Salix melanopsis Joseph P. Tracy 1933-6-9 12533 Humboldt along Eel R. Shively; Northern Coast Ranges, Eel R. 30 Comment
  UC519372  Salix melanopsis Joseph P. Tracy 1933-6-7 12514 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  JEPS13087  Salix scouleriana Joseph P. Tracy 1937-2-21 15230 Humboldt Van Duzen R. near Grizzly Creek; Van Duzen R. 91 Comment
  SBBG28831  Salix scouleriana H. E. Parks 1931-5-12 951 Humboldt Bishop Pine Lodge, Trinidad 150 Comment
  UC1196699  Salix scouleriana Joseph P. Tracy 1919-9-14 5204 Humboldt Trinity R. Valley near Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC249646  Salix scouleriana Joseph P. Tracy 1923-1-7 6136 Humboldt Table Bluff Northern Coast Ranges, Table Bluff 91 Comment
  UC525975  Salix scouleriana H. E. Parks 1933-1-24 1352 Humboldt Spruce Cove (Parks Ranch) Trinidad; , Spruce Cove (Parks Ranch) Comment
  UC525976  Salix scouleriana H. E. Parks 1933-1-24 1352 Humboldt Spruce Cove (Parks Ranch) Trinidad Comment
  CAS-BOT-BC128988  Salix sitchensis Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-12 1230 Humboldt Floodplain of the Van Duzen River, 1 1/2 miles east of Alton 30 Comment
  HSC33299  Salix sitchensis R. W. Becking, Thomas Overturf 1975-3-25 703 Humboldt Mad River, 1 mi. S of Blue Lake 21 Comment
  UC173584  Salix sitchensis Joseph P. Tracy 1935-7-24 14187 Humboldt Trinity Summit near Ranger Station; Trinity Summit 1828 Comment
  UC481274  Salix sitchensis Harold E. Parks 1931-5-28 1026 Humboldt Little River Lagoon Comment
  UC490491  Salix sitchensis Joseph P. Tracy 1932-8-11 10340 Humboldt N. Yager Creek Northern Coast Ranges, N. Yager Creek 304 Comment
  UC1173581  Salix tracyi Joseph P. Tracy 1939-8-5 16392 Humboldt Van Duzen River at Dinsmore's 737 Comment
  UC481217  Salix tracyi Harold E. Parks 1931-5-20 997 Humboldt Blue Lake Mad R., Blue Lake 15 Comment
  UC526713  Salix tracyi Joseph P. Tracy 1934-3-25 13167 Humboldt Blue Slide, on Van Duzen River 91 Comment
  JEPS12741  Sambucus mexicana Lincoln Constance 1934-6-6 829 Humboldt fire trail <from> Dyerville to Horse Prairie (and return); South Fork Eel River, Bull Creek Region Comment
  CAS-BOT-BC235124  Sambucus racemosa var. racemosa D. E. Breedlove 1962-6-8 3059 Humboldt U.S. Highway 101, 5 miles south of Orick 30 Comment
  HSC37856  Sambucus racemosa var. racemosa Peter Sorensen 1976-6-2 Humboldt Woodley Island Comment
  CAS-BOT-BC235123  Sambucus racemosa var. racemosa E. A. McGregor 1921-8-30 s.n. Humboldt Requa and vicinity. Between slough and Klamath River near hotel Comment
  HSC49243  Sanicula arctopoides Sheila Logan 1978-4-7 5 Humboldt Samoa sand dunes, 1/4 mi. N of Coast Guard Station. Comment
  CAS-BOT-BC223253  Sanicula bipinnatifida Joseph P. Tracy 1938-7-4 15985 Humboldt Valley of South Yager Creek 762 Comment
  HSC100692  Sanicula bipinnatifida Carl C. Marshall Apr 1886 184 Humboldt Hill at Scottsville. Comment
  UC1197100  Sanicula crassicaulis Joseph P. Tracy 1927-5-15 8034 Humboldt Trinity River Valley near the South Fork; Trinity River Valley 182 Comment
  BLMAR197  Sanicula laciniata Donald Hazlett 1994-6-7 197 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  JEPS992  Sanicula laciniata Joseph P. Tracy 1938-3-27 15701 Humboldt Miranda, along South Fork of Eel River South Fork Eel River; Miranda, South Fork Eel River 121 Comment
  HSC45599  Sanicula tracyi Thomas W. Nelson 1978-5-27 4091 Humboldt McKneown Ranch N of Dinsmore. Comment
  HSC68996  Sanicula tracyi Jacqueline Greenleaf 1980-8-12 314 Humboldt Near Henry Ridge. 1128 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
  UC1198880  Saxifraga californica Joseph P. Tracy 1927-4-10 7889 Humboldt Redwood Creek at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC774703  Saxifraga mertensiana Carl B. Wolf 1941-3-2 4068 Humboldt 2 mi s of Honeydew (along Honeydew Creek); North Coast Range, Honeydew Creek 152 Comment
  UC1100781  Scirpus cernuus Malcolm A. Nobs, S. Galen Smith 1949-8-3 1174 Humboldt salt marshes around Fields Landing; around Fields Landing Comment
  UC963872  Scirpus cernuus H. E. Parks and S. T. Parks August, 1943 24244 Humboldt Spruce Cove North Coast Ranges, , Trinidad (Trinidad) 60 Comment
  JEPS95121  Scirpus pungens Vernon Oswald and Lowell Ahart 1997-9-4 8848 Humboldt Big Lagoon County Park, at sw edge of Big Lagoon Big Lagoon; North Coast Region, Big Lagoon County Park, Big Lagoon 3 Comment
  UC668017  Scirpus pungens Joseph P. Tracy 1927-9-25 8368 Humboldt at Eureka (near bay shore) 6 Comment
  HSC15631  Scoliopus bigelovii R. Spellenberg, D. Sutherland, A. Sylvester 1966-3-27 1361 Humboldt 3 mi. E of Redwood Creek on old Hwy. 299 Comment
  UCD124815  Scrophularia californica Linda M. Barker 1976-5-13 1473 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  HSC14396  Scutellaria antirrhinoides H. E. Parks, J. P. Tracy 1934-6-27 11061 Humboldt Grouse Mtn. 1433 Comment
  UC25792  Scutellaria antirrhinoides Harley P. Chandler June, 1901 1323 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC1222865  Scutellaria antirrhinoides Joseph P. Tracy 1950-6-15 18788 Humboldt 7 mi n of Harris (Mail Ridge, Jenk's Ranch); Mail Ridge, Jenk's Ranch Comment
  HSC40873  Scutellaria californica Thomas W. Nelson 1976-7-9 3010 Humboldt S of Mt. Lassic (Signal Peak) 1707 Comment
  HSC98999  Sedum laxum subsp. laxum Cara Witte 2007-6-19 294 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38 1220 Comment
Read comments Aug 17 2011
  HSC59359  Sedum obtusatum subsp. retusum M. A. Baker 1979-6-28 945 Humboldt 1500 Comment
  HSC73871  Sedum radiatum Gail Newton 1980-7-14 1461 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC63189  Sedum radiatum M. A. Baker 1979-6-7 800 Humboldt 7.1 mi. E of Berry Summit along Hwy. 299 Comment
  HSC98528  Sedum spathulifolium Cara Witte 2007-6-7 222 Humboldt Along National Forest 1. Approximately 1 mile north of cattle guard. Comment
  HSC96071  Sedum spathulifolium J. McIntire, S. Lyon 2005-6-10 8 Humboldt 1.4 mi. S of Hwy. 299 on Titlow Hill Rd. 945 Comment
  RSA0074767  Sedum spathulifolium I. L. Wiggins 1932-6-18 5878 Humboldt Mouth of Little River. Comment
  UC1225751  Sedum spathulifolium Joseph P. Tracy 1948-5-15 17981 1/2 Humboldt along Trinity Highway Willow Creek Canyon (on rocks at the East Fork Willow); East Fork Willow Creek, Willow Creek Canyon 457 Comment
  CHSC79631  Selaginella kraussiana Gordon Leppig 2000-4-12 1290 Humboldt Arcata, behind Humboldt State University, at base of stump near Fern Lake spillway. UTM zone 10, 4526N, 409E. 48 Comment
  LA209676  Selaginella oregana Lawrence L. Kiefer; 1963-8-6 769 Humboldt Patrick's Point State Park, Lookout Rock 45 Comment
  UC1239800  Selaginella wallacei Joseph P. Tracy 1913-5-4 4062 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  SBBG62728  Senecio hydrophilus R. Hartwell 1938-8-6 113 Humboldt near Eureka Comment
  HSC58178  Senecio triangularis G. L. Clifton, Griswold 1979-8-2 12262 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC581709  Senecio triangularis Joseph P. Tracy 1930-7-16 8934 Humboldt in wet meadow at McKay Camp (South Fork Mountain); , McKay Camp 1676 Comment
  HSC29884  Senecio vulgaris Thomas W. Nelson 1971-11-11 600 Humboldt Foot of Murray Rd., McKinleyville. Comment
  UC963844  Senecio vulgaris H. E. Parks and S. T. Parks June 1943 24234 Humboldt Spruce Cove North Coast Ranges, , Spruce Cove (Trinidad) 60 Comment
  UCD135823  Senecio vulgaris H. E. Parks; S. T. Parks. 1943-6-1 24234 Humboldt Spruce Cove, Trinidad. 60 Comment
  CAS-BOT-BC85841  Sequoia sempervirens Joseph P. Tracy 1926-2-21 7355 Humboldt Blue Slide, on Van Duzen River 91 Comment
  HSC37393  Sequoia sempervirens Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 500 Humboldt Along Lost Man Creek. 38 Comment
  SEINET11737925  Sequoia sempervirens J. P. Tracy 1950-1 19387 Humboldt At Park's place, Trinidad 61 Comment
  UC180191  Sericocarpus oregonensis subsp. oregonensis Joseph P. Tracy 1914-9-6 4620 Humboldt Bald Mountain, between High Prairie and Snow camp Bald Mountain 1066 Comment
  HSC34944  Sherardia arvensis Scott M. Kruse 1975-4-6 1 Humboldt H.B.M. Graham Rd., Bayside 4 Comment
  UC1197966  Sidalcea malachroides Joseph P. Tracy 1906-6-10 2472 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1224688  Sidalcea malachroides D. E. Anderson 1963-5-26 2502 Humboldt in alluvial gravel beds along s side Jacoby Creek; along s side of Jacoby Creek Comment
  CAS-BOT-BC205569  Sidalcea malachroides Volney Rattan 1878-1-1 s.n. Humboldt Redwood Cr. Comment
  POM160275  Sidalcea malviflora subsp. nana Joseph P. Tracy 1926-6-20 s.n. Humboldt Horse Mountain. 1524 Comment
  HSC103244  Sidalcea malviflora subsp. patula John McRae, Carrie Schreiber 2010-6-18 Humboldt USDA Forest Service, Humboldt Nursery, Baird Rd., McKinleyville 15 Comment
  UC108863  Sidalcea malviflora subsp. patula J. W. Blankinship 1893-6-19 Humboldt Hydesville Comment
  UC1222504  Sidalcea malviflora subsp. patula Joseph P. Tracy 1950-6-8 18738 Humboldt 7 mi s Ferndale (Bear River Ridge); , s of Ferndale 609 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
  UC902187  Sidalcea oregana subsp. eximia Joseph P. Tracy 1947-7 17822 Humboldt Box Camp Meadow , Box Camp Meadow (Trinity Summit) 1463 Comment
  HSC103762  Silene M. R. Mesler, Sydney Carothers 2013-6-3 1481 Humboldt Near Castle Rock on FS 5N40 about 3.2 miles from NF 60 1248 Comment
  HSC22032  Silene Richard Spjut 1971-5-8 1875 Humboldt 1 mi. up Friday Ridge Rd., 3 mi. E of Willow Creek Comment
  UC14437  Silene antirrhina Chestnut and Drew 1888-7-9 Humboldt Kneeland Comment
  UC161054  Silene californica Harley P. Chandler May, 1901 1259 Humboldt North Coast Ranges, Redwood Belt North Coast Ranges 152 Comment
  RSA47141  Silene californica Doris K. Kildale 1925-3-29 617 Humboldt Alton hill. Comment
  UC1541414  Silene californica H. E. and S. T. Parks June 1928 258 Humboldt Longvale 182 Comment
  JEPS23250  Silene campanulata Joseph P. Tracy 1932-7-18 10704 Humboldt head of Brett Hole , head of Brett Hole (Trinity Summit) 1828 Comment
  HSC98675  Silene campanulata subsp. glandulosa Cara Witte 2007-6-26 353 Humboldt Horse Mountain Botanical Area. Junction of 6N36 and 6N36A. 1388 Comment
  CAS-BOT-BC387076  Silene gallica Doris K. Kildale; L. B. Kildale 1930-5-27 9527 Humboldt Gunther's Island in Humboldt Bay Comment
  HSC81686  Silene grayi Thomas W. Nelson 1979-7-11 5005 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC41324  Silene laciniata subsp. californica Brad Klipfel 1974-8-2 517 Humboldt Horse Mtn. Comment
  CAS-BOT-BC389055  Silene laciniata subsp. californica Carl B. Wolf 1927-8-27 1161 Humboldt On the Klamath River 11 miles above Weitchpec Comment
  SEINET6744567 Image available Sisyrinchium bellum C. C. Harris, S. K. Harris 1942-6-9 1219 Humboldt 3 miles north and 1 mile west of Fernbridge, Humboldt County, California. Alt. Ca. 33 m. Comment
  UC1196380  Sisyrinchium bellum Joseph P. Tracy 1931-6-7 9572 Humboldt 2 mi n Trinidad 60 Comment
  HSC13907  Sisyrinchium bellum T. M. Mingo May 1965 Humboldt E of College Cove, N of Trinidad Comment
  HSC23120  Sisyrinchium bellum Norman Dennis 1965-6-8 112 Humboldt 0.25 mi. S and 1 mi. E of junction of Barry Ridge Rd. and Eureka-Bridgeville county road, along Ashfield Ridge Rd., 5 mi. SE of Kneeland 793 Comment
  SEINET3876425  Sisyrinchium bellum C. C. Harris 1942-6-9 1219 Humboldt 3 miles north and 1 mile west of Fernbridge.; 0 33 Comment
  UC1051527  Sisyrinchium bellum Helen K. Sharsmith 1953-6-28 4384 Humboldt between Bell Springs and Blue Rock Ranch (on Bell Springs Road); Inner North Coast Ranges 853 Comment
  UC1541352  Smilacina stellata W. K. Parks July 1933 Humboldt South Fork Mountain Comment
  CDA13498  Solanum americanum R. Spadoni 1997-12-2 s.n. Humboldt 1335 J St. Eureka. 15 Comment
  HSC21297  Solanum aviculare Larry Berti 1968-10-13 Humboldt Comment
  UC1222771  Solanum umbelliferum Joseph P. Tracy 1950-6-18 18851 Humboldt Briceland Comment
  CAS-BOT-BC157484  Solanum umbelliferum H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. Trail 1524 Comment
  UC494190  Solidago elongata H. E. and S. T. Parks 1930-9-14 785 Humboldt n shore Big Lagoon Comment
  LA204243  Solidago lepida var. salebrosa S. T. Parks; H. E. Parks 1930-9-14 785 Humboldt North shore of Big Lagoon Comment
  CHSC76025  Solidago spathulata Vernon H. Oswald 1999-8-19 9835 Humboldt Elk Head at the N end of Trinidad State Beach. At the headland overlooking the ocean. 30 Comment
  POM179780  Solidago spathulata H. P. Chandler 1901-05 1203 Humboldt Humboldt Bay. 30 Comment
  HSC32524  Soliva sessilis David Johnson 1974-5-2 74 Humboldt Mad River Co. Park, mouth of the Mad River; by the parking lot Comment
  HSC35010  Soliva sessilis J. O. Sawyer 1975-5-20 2695 Humboldt 1445 Chester Ave., Sunnybrae Comment
  CAS-BOT-BC374428  Sonchus asper Joseph P. Tracy 1932-5-22 10115 Humboldt North Coast Ranges. South Fork of Eel River, between Miranda and Redway 91 Comment
  SEINET200988  Sonchus oleraceus Joseph P. Tracy 1903-8-2 sn Humboldt At Eureka 0 Comment
  HSC89465  Sonchus oleraceus P. A. Daly 1986-3-12 69 Humboldt Trinidad Head, along trail 61 Comment
  RSA21550  Sparganium angustifolium subsp. emersum Carl B. Wolf 1937-9-14 9354 Humboldt Town of Blue Lake. 15 Comment
  HSC89257  Spartina alterniflora Karen Kovacs 1989-10-26 Humboldt .5 mi. N of Samoa-Eureka bridge, E of Hwy. 255, Humboldt Bay Comment
  CAS-BOT-BC235368  Spartina densiflora Malcom A. Nobs; S. Galen Smith 1949-8-3 1180 Humboldt Near mouth of the Elk River, ca. 4 miles south of Eureka on Highway 101 Comment
  UCSB34193  Spartina foliosa Kearns, Dennis 1979-8-24 Humboldt Spring Tide Area of Arcata Bay, Arcata Boat Launching Facility at the South end of "I" Street Comment
  UC161005  Spergula arvensis subsp. arvensis Joseph P. Tracy 1909-6-6 2983 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  HSC95590  Spergularia canadensis var. occidentalis Andrea Pickart 2002-7-19 181 Humboldt Arcata Marsh at end of I St. 0 Comment
  CDA18204  Spergularia macrotheca var. macrotheca G. D. Barbe, T. C. Fuller 1974-6-17 1830 Humboldt North Coast Ranges; Lower Pacific Drive, S of sewage plant, W of golf course, at Sail Court, Shelter Cove. 60 Comment
  HSC40970  Spiraea douglasii Linda M. Barker 1976-6-14 1600 Humboldt 3 mi. W of Arcata Comment
  HSC16656  Spiranthes porrifolia J. Wendell Howe 1932-6-19 Humboldt Redway Comment
  UC666992  Spiranthes porrifolia Joseph P. Tracy 1937-8-15 15667 Humboldt 15 mi e Orick (Bald Hills); Bald Hills 914 Comment
  UC275578  Spiranthes romanzoffiana Joseph P. Tracy with H. E. Parks 1924-8-3 6767 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC35344  Spiranthes romanzoffiana A. Montalvo, J. D. Ackerman 1975-8-22 643 Humboldt N of College Cove, Trinidad State Beach Park Comment
  UC672873  Spirodela polyrhiza Joseph P. Tracy 1932-8-21 10371 Humboldt w slope Chaparral Mt. (Three Cabins Ranch, on e side of Mad River) 457 Comment
  UC180214  Stachys ajugoides var. rigida Joseph P. Tracy 1914-6-14 4512 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC577322  Stachys ajugoides var. rigida Joseph P. Tracy 1933-6-24 12611 Humboldt Big Lagoon 3 Comment
  UC577331  Stachys ajugoides var. rigida Joseph P. Tracy 1933-8-6 12944 Humboldt French Camp Ridge 1066 Comment
  UCLA70873  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15969 Humboldt near Panther Gap (on road between Bull Creek to Mattole) 822 Comment
  UC1239725  Stachys ajugoides var. rigida Joseph P. Tracy 1943-7-11 17434 Humboldt Park's garden Trinidad 3 Comment
  RSA447391  Stachys emersonii Christopher Davidson 1973-5-29 2201 Humboldt Ca. 2 mi S of Carlotta on St. Hwy 36 61 Comment
  HSC75375  Stachys mexicana J. O. Sawyer, M. A. Ericksen 1980-7-7 3575 Humboldt Slopes along Aikens Creek, Adroni Research Area 457 Comment
  HSC63580  Stachys rigida J. P. Smith 1973-5-26 6789 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC57674  Stellaria crispa G. L. Clifton, Griswold 1979-7-25 10867 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC39800  Stellaria media Peter Sorensen 1976-6-11 Humboldt Woodley Island Comment
  CAS-BOT-BC516465  Stenanthium occidentale Joseph P. Tracy 1937-7-25 15558 Humboldt Happy Camp Mountain, in Trinity Fummit range, northeast of Hawkins Bar 1280 Comment
  UC204696  Stephanomeria elata Joseph P. Tracy 1918-9-29 5104 Humboldt 4 mi above mouth of South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  HSC6235  Stephanomeria exigua Richard Spjut 1968-11-2 256 Humboldt On the SW slope of Chaparral Mtn. 915 Comment
  UC1199362  Stephanomeria virgata subsp. pleurocarpa Joseph P. Tracy 1922-9-3 6112 Humboldt Bluff Creek, Klamath River Northern Coast Ranges, Klamath River 152 Comment
  UC205170  Stephanomeria virgata subsp. pleurocarpa Joseph P. Tracy 1919-9-14 5187 Humboldt near Mouth of Willow Creek; Northern Coast Ranges, Valley of the Trinity River 152 Comment
  HSC102604  Streptanthus tortuosus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1591 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  UC184371  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1912-7-26 3843 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC58025  Streptopus amplexifolius G. L. Clifton 1979-7-31 11833 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC103688  Streptopus amplexifolius M. R. Mesler 2013-7-24 1629 Humboldt Big Hill Road at boundary of SRNF and Hoopa land 1442 Comment
  CAS-BOT-BC269566  Symphoricarpos albus var. laevigatus E. A. McGregor 1921-8-2 s.n. Humboldt Requa and vicinity. 6 miles E. up Klamath River on Terwah Road Comment
  RSA245218  Symphoricarpos albus var. laevigatus F. D. Jamison 1967-7-22 17 Humboldt 1/2 mile S of junction of Clam Beach Road and Murray Road on the frontage road. Comment
  HSC57900  Symphoricarpos mollis Gilbert Muth 1979-7-31 11487 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  UC1239540  Symphoricarpos mollis Joseph P. Tracy 1948-9-5 18188 Humboldt 3 mi s Grizzly Camp; Trinity Summit 1524 Comment
  HSC100413  Symphoricarpos racemosus Carl C. Marshall Jun 1886 291 Humboldt Coyote Camp. Comment
  UC1222988  Symphyotrichum chilense Joseph P. Tracy 1950-9-10 19362 Humboldt 1/2 mi s, 1 mi inland from Cape Mendocino Capetown; Cape Ridge 60 Comment
  UCD136540  Symphyotrichum chilense Collector unknown Date unknown s.n. Humboldt exact location unknown. Comment
  CAS-BOT-BC98974  Symphyotrichum foliaceum var. parryi Doris K. Kildale 1925-8-17 1218 Humboldt Trinity Summit near Ranger Station 1828 Comment
  HSC75277  Symphyotrichum hendersonii J. O. Sawyer, D. A. Thornburgh 1980-9-9 4078 Humboldt Mill Creek Lake and surrounding meadows Comment
  UC223712  Symphyotrichum subspicatum Elmer I. Applegate 1923-9-13 3992 Humboldt Stone Lagoon, (along seashore, edge of redwoods) Comment
  HSC21149  Synthyris reniformis G. N. Bos 1965-5-2 247 Humboldt 8 mi. E of Korbel on Bald Mtn. Rd. 793 Comment
  HSC21155  Synthyris reniformis D. E. Anderson 1962-2-10 1917 Humboldt 0.5 mi. E of Big Lagoon Elementary School along abandoned stretch of Hwy. 101 Comment
  UCSB22982  Tanacetum bipinnatum Haller, John 1967-6-17 Humboldt At Clam Beach County Park, U.S. Highway 101, about 10 miles north of Arcata Comment
  HSC6244  Tanacetum bipinnatum Paul Shields 1955-9-17 Humboldt 1/2 mi. S of mouth of Mad River Comment
  HSC6246  Tanacetum bipinnatum S. J. Moore 1965-4-10 5 Humboldt Dry Lagoon State Park Comment
  RSA167250  Taraxacum laevigatum Joseph P. Tracy 1951-6-24 19542 Humboldt Ashfield Ridge 762 Comment
Read comments Aug 15 2009
  CAS-BOT-BC85215  Taxus brevifolia Doris K. Kildale 1927-7-17 3758 Humboldt Bug Creek 792 Comment
  HSC74647  Taxus brevifolia M. A. Baker 1980-5-17 1214 Humboldt Near Le Perron Peak 792 Comment
  HSC102585  Tellima grandiflora M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1572 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC44530  Tellima grandiflora Brad Klipfel 1973-7-1 138 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC20422  Tellima grandiflora D. A. Shally 1965-5-15 47 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  JEPS49695  Tellima grandiflora Harley P. Chandler May 1901 1232 Humboldt Humboldt Bay; North Coast Range 121 Comment
  POM274834  Tellima grandiflora Lyman Benson 1927-7-12 233 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; River: South Fork Eel. 61 Comment
  UC495728  Thermopsis gracilis Joseph P. Tracy 1929-7-4 8612 Humboldt French Camp Ranch; Northern Coast Ranges 1066 Comment
  RSA259571  Thermopsis macrophylla var. agnina Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-7-15 2000 Humboldt Growing on Serpentine outcrop at Franch Camp, Bald Hills Comment
  RSA119371  Thermopsis robusta S. Tillett 1956-7-6 620 Humboldt 11 miles from Orleans on Bar Shanty Road 1159 Comment
  UC902019  Thlaspi arvense Joseph P. Tracy 1949-9-29 18582 Humboldt near Freshwater Corners; near Freshwater Corners 30 Comment
  UC302045  Thlaspi californicum Joseph P. Tracy 1926-5-15 7484 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
  POM160766  Thuja plicata Joseph P. Tracy 1920-9-19 5401 Humboldt North fork of Mad River. 305 Comment
Read comments Jul 25 2018
  RSA301968  Thuja plicata J. R. Shevock 1972-3-26 1468 Humboldt Along Hwy 299. 366 Comment
  UC615042  Thuja plicata Beryl O. Schreiber 1934-6-5 1132 Humboldt 5 mi e of Blue Lake (road to Redding, wooded slope) Comment
  CAS-BOT-BC88319  Thysanocarpus curvipes Doris K. Kildale 1929-4-25 7478 Humboldt Kneeland Prairie. 853 Comment
  CAS-BOT-BC88322  Thysanocarpus curvipes John H. Thomas 1968-4-21 14355 Humboldt About 6.4 miles south of Weitchpec (as measured along the road). 170 Comment
  UC1198900  Tiarella trifoliata var. unifoliata J. P. Tracy 1901-6-30 1209 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UC1197833  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1934-8-29 13628 Humboldt at McKay Camp South Fork Mountain 1676 Comment
  HSC44676  Tolmiea diplomenziesii Brad Klipfel 1973-7-15 214 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1222359  Tolmiea diplomenziesii Joseph P. Tracy 1950-6-15 19040 Humboldt vicinity Willow Creek (near mouth of Raccoon Creek, 1 mi ne of Patterson's Ranch) Comment
  UC154137  Tolmiea diplomenziesii Joseph Burtt Davy and Walter C. Blasdale 1899-5 5628 Humboldt Bald Mt.; North Coast Ranges Comment
  HSC26806  Tonella tenella Thomas W. Nelson 1971-4-24 400 Humboldt Overlooking the E Fork of Willow Creek, S of Hwy. 299 Comment
  HSC45070  Torilis arvensis R. Sutherland 1978-5-16 2 .16578 Humboldt Redwood Creek 143 Comment
  JEPS63933  Toxicodendron diversilobum W. L. Jepson 1902-7-10 2003 Humboldt S. Fork Trinity R., Martin's Ranch Comment
  UC582683  Tracyina rostrata Joseph P. Tracy 1930-6-15 8762 Humboldt Dobbyn Creek 152 Comment
  RSA0001653  Tracyina rostrata Joseph P. Tracy 1916-6-20 4735 Humboldt Southeastern Humboldt county. Alder Point on Eal River. 305 Comment
  CAS-BOT-BC377100  Tragopogon porrifolius Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC43209  Trichostema lanceolatum R. Sutherland 1976-8-18 12 .18876 Humboldt 183 Comment
  HSC44328  Trichostema laxum Thomas W. Nelson, Jane P. Nelson 1977-8-6 3700 Humboldt Above Alder Spring 1616 Comment
  JEPS63148  Trichostema laxum Joseph P. Tracy 1926-10-15 7815 Humboldt South Fork of Trinity River, mountain slopes W of mouth 304 Comment
  HSC102186  Trichostema oblongum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1100 Humboldt Andy's Camp 1564 Comment
  POM118789  Trientalis latifolia Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville. Comment
  UC1197242  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1913-6-20 4225 Humboldt nw slope Buck Mtn (lower foothills); Northern Coast Ranges 762 Comment
  UC160920  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1906-7-4 2535 Humboldt near Hydesville (Yager Creek); Northern Coast Ranges 60 Comment
  CDA4307  Trifolium angustifolium J. R. Keck Jr., W. Simas 1973-5-3 Humboldt Bear River Road, between Cook & Morrison. 0 Comment
  RSA170210  Trifolium arvense Joseph P. Tracy 1941-7-26 16970 Humboldt Eureka (G Street near 9th) Comment
  UC1103434  Trifolium barbigerum Joseph P. Tracy 1912-5-12 3635 Humboldt Eureka Northern Coast Ranges Comment
  UC1197492  Trifolium barbigerum Joseph P. Tracy 1908-6-9 2670 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  BLMAR740  Trifolium barbigerum Jennifer Wheeler 2015-5-18 740 Humboldt King range, strawberry rock grazing allotment down windy point 243 Comment
  HSC100527  Trifolium barbigerum Carl C. Marshall Jun 1885 65 Humboldt No data. Comment
  UC160938  Trifolium bifidum var. decipiens J. P. Tracy 1900-5-28 812 Humboldt immediate vicinity Eureka 0 Comment
  UC1223479  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1948-5-31 17985 Humboldt 1/2 mi ne Garberville (bench) Comment
  UC16714 Image available Trifolium eriocephalum W. C. Blasdale 1896-6-8 Humboldt near Deer Creek; Mad River; Mad River near Deer Creek, Humboldt Co. Comment
  HSC98508  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
  POM214889  Trifolium eriocephalum subsp. eriocephalum Joseph P. Tracy 8821 Humboldt Buck Mountain Comment
  UC495651  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-21 8770 Humboldt Larrabee valley Northern Coast Ranges 701 Comment
  HSC28171  Trifolium fragiferum Thomas W. Nelson 1973-7-24 1099 Humboldt Flood plain of the Mad River at the Carson R.R. bridge Comment
  HSC71067  Trifolium fucatum Thomas W. Nelson, Jane P. Nelson 1977-5-30 3400 Humboldt McKeown Ranch; along road to Anderson's Ford 854 Comment
  UC41600  Trifolium fucatum J. Burtt Davy 1899-6-19 5684 Humboldt Hoopa Mtn North Coast Ranges Comment
  UC162777  Trifolium gracilentum J. P. Tracy 1900-6-5 844 Humboldt immediate vicinity Eureka (Bucksport) 0 Comment
  UC162782  Trifolium hybridum J. P. Tracy 1904-7-3 2108 Humboldt vicinity Eureka 0 Comment
  JEPS33182  Trifolium longipes var. oreganum Joseph P. Tracy 1926-6-20 7608 Humboldt Horse Mtn Northern Coast Ranges Comment
  HSC92107  Trifolium macraei Sydney Carothers 1995-6-13 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  HSC95079  Trifolium macraei Andrea Pickart 2002-7-3 156 Humboldt Lanphere Dunes: Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 0 Comment
  UC1223364  Trifolium microdon Joseph P. Tracy 1950-6-8 18731 Humboldt Bear River ridge 609 Comment
  HSC45145  Trifolium microdon R. Sutherland 1978-5-24 3 .24578 Humboldt Mckee Flat 287 Comment
  RSA168856  Trifolium microdon Joseph P. Tracy 1938-6-8 15867 Humboldt Samoa Sand dunes Comment
  UC165581  Trifolium repens Harley P. Chandler May, 1902 1092 Humboldt Scotia North Coast Ranges 60 Comment
  UC169345  Trifolium variegatum var. melananthum Joseph P. Tracy 1912-6-30 3714 Humboldt Eureka Northern Coast Region 0 Comment
  UC165592  Trifolium variegatum var. variegatum Harley P. Chandler May, 1901 1169 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC495676  Trifolium variegatum var. variegatum Joseph P. Tracy 1929-5-5 8570 Humboldt along South Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  UC1197562  Trifolium variegatum var. variegatum Joseph P. Tracy 1927-6-17 8283 Humboldt lower w foothills of Chaparral Mtn (Three Cabins); Northern Coast Ranges 457 Comment
  HSC15235  Trifolium willdenovii Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  JEPS4152  Trifolium willdenovii Joseph P. Tracy 1932-5-10 9944 Humboldt between Petrolia and the ocean Northern Coast Ranges 152 Comment
  UC1197514  Trifolium willdenovii Joseph P. Tracy 1932-5-17 10068 Humboldt at Berry's Redwood Creek; Northern Coast Ranges 274 Comment
  UC1197520  Trifolium willdenovii Joseph P. Tracy 1911-6-25 3261 Humboldt Bucksport Northern Coast Ranges 0 Comment
  JEPS66099  Trifolium wormskioldii W. H. Shockley 1879-1 Humboldt Eureka Comment
  JEPS66087  Trifolium wormskioldii W. L. Jepson 1902-6-25 1934 Humboldt Korbel to Angel's Ranch Comment
  UC495675  Trifolium wormskioldii Joseph P. Tracy 1927-7-17 8281 Humboldt Three Cabins Northern Coast Ranges, Chaparral Mtn 457 Comment
  UCD109957  Trifolium wormskioldii W. A. Williams 1956-6-19 s.n. Humboldt Domingues Creek. 91 Comment
  CAS-BOT-BC451808  Triglochin maritima Alice Eastwood 1907-5-15 s.n. Humboldt Samoa Comment
  HSC14169  Triglochin maritima D. E. Anderson 1961-9-3 1779 Humboldt Along Hwy. 101 Comment
  HSC93841  Triglochin striata Gordon Leppig 1999-10-25 1267 Humboldt Hwy. 101, mi. marker 61.40, E side of Hwy. 2 Comment
  CAS-BOT-BC133390  Trillium ovatum Alice Eastwood 1939-3-19 18899 Humboldt Bolling Grove Comment
  HSC32140  Trillium ovatum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5608 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC22042  Trillium ovatum H. S. Logsdon 1964-4-11 15 Humboldt 4 mi. NE of Orick at Boye's Prairie Comment
  UC1197829  Trillium ovatum Joseph P. Tracy 1918-4-21 4883 Humboldt near Newell's old camp, on old Kneeland Prairie rd. Newell's old camp; Northern Coast Ranges, around Humboldt Bay 304 Comment
  UC709437  Trillium ovatum Joseph P. Tracy 1941-4-8 16855 Humboldt at head of Willow Creek; Willow Creek Canyon, Willow Creek 762 Comment
  RSA298972  Triodanis biflora Lincoln Constance 1934-6-4 818 Humboldt Look Prairie, and Bull Creek road, to Dyerville, South Fork Eel River. Comment
  CHSC118618  Triphysaria eriantha subsp. eriantha Richard R. Halse 2016-3-24 9683 Humboldt Along U.S. Hwy. 101 ca. 9.5 miles south of Garberville, just north fo the Mendocino County Line. 168 Comment
  JEPS26218  Triphysaria eriantha subsp. rosea H. E. Parks and Joseph P. Tracy 1927-4-24 7946 Humboldt Bucksport 6 Comment
  HSC31558  Triphysaria versicolor subsp. faucibarbata Glenn McGourty 1974-4-27 31 Humboldt Along side of Mattole River Comment
  HSC31180  Trisetum canescens D. E. Anderson 1972-6-20 5751 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  UC1133275  Trisetum canescens H. S. Yates 1936-6-17 5704 Humboldt lower nw slope Buck Mountain; South Fork Peak Quad. 792 Comment
  SEINET198591 Image available Trisetum cernuum H. E. Parks, S. T. Parks 7551 Humboldt Spruce Cove Trinidad. 61 Comment
  UCD93908  Trisetum cernuum Joseph P. Tracy 1900-5-22 800 Humboldt Immediate vicinity of Eureka. 0 Comment
  HSC32556  Triteleia hyacinthina Thomas W. Nelson 1973-7-10 1034 Humboldt Humboldt/Trinity County line, Mt. Lassic (Signal Peak) 1790 Comment
  RSA183018  Triteleia hyacinthina Lee W. Lenz 1966-5-24 24659 Humboldt W of Berry Summit, US 299. Comment
  UC1197712  Triteleia hyacinthina Joseph P. Tracy 1932-6-26 10268 Humboldt Fort Baker Ranch 762 Comment
  SEINET12053134  Triteleia laxa Unknown 1936-1 13196 Humboldt near Ukiah Comment
  UC666895  Triteleia laxa Joseph P. Tracy 1932-6-26 10269 Humboldt high grassy ridges Fort Baker 762 Comment
  UC666896  Triteleia laxa Joseph P. Tracy 1938-7-5 16001 Humboldt in woods by old Strong's District School House (5 mi e of Carlotta) 45 Comment
  UC1222685  Triteleia peduncularis Joseph P. Tracy 1950-6-15 18770 Humboldt near Redcrest Resort (Englewood); Englewood 91 Comment
  UC484080  Tsuga heterophylla Carl B. Wolf 1930-10-25 1763 Humboldt 12 mi above Blue Lake (along Blue Lake to Willow Creek Road (Lord Ellis Road)) 304 Comment
  HSC79507  Umbellularia californica Kenneth Clark 1980-3-27 564 Humboldt Dead Man's Gulch, throughout Shelter Cove 69 Comment
  RSA46914  Umbellularia californica Doris K. Kildale 1925-12-27 1447 Humboldt Kneeland. 762 Comment
  UC1196284  Umbellularia californica Joseph P. Tracy 1912-3-31 3570 Humboldt in valley of Mad River near Glendale; Northern Coast Ranges 30 Comment
  UC183587  Umbellularia californica Joseph P. Tracy 1913-3-9 4020 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC229829  Urtica urens Joseph P. Tracy 1922-7-16 6103 Humboldt Northern Coast Ranges, at Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  UCD111618  Urtica urens Joseph P. Tracy 1944-6-10 17476 Humboldt Eureka. 30 Comment
  RSA46868  Vaccinium cespitosum Doris K. Kildale 1927-7-10 3725 Humboldt Gans Prairie, Bald Hills. Comment
  CAS-BOT-BC199307  Vaccinium ovatum Volney Rattan 1879-1-1 s.n. Humboldt Unspecified Comment
  HSC37342  Vaccinium ovatum Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 481 Humboldt Along Lost Man Creek. 38 Comment
  HSC7914  Vaccinium ovatum J. Pursell 1964-10-11 10111 Humboldt Patricks Point State Park, trail to wedding rock Comment
  POM118410  Vaccinium ovatum Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC1121133  Vaccinium ovatum A. E. Wieslander 1931-5-21 214 Humboldt Kneeland China Flat Quad. Comment
  UC1197779  Vaccinium ovatum Joseph P. Tracy 1922-5-21 6052 Humboldt Fieldbrook Northern Coast Ranges 60 Comment
  UC154184  Vaccinium ovatum P. E. Goddard 1901-6 20 Humboldt Hupa Comment
  CAS-BOT-BC199410  Vaccinium parvifolium Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC7924  Vaccinium parvifolium P. Markle 1962-5-3 18 Humboldt Arcata Community behind HSU campus 30 Comment
  RSA34285  Vaccinium parvifolium J. Wendell Howe 1930-9-15 s.n. Humboldt Arcata. Comment
  UC1197764  Vaccinium parvifolium Joseph P. Tracy 1933-7-11 12672 Humboldt Horse Mountain 1432 Comment
  UC154041  Vaccinium parvifolium J. P. Tracy 1907-5-20 2563 Humboldt Immediate vicinity Eureka 0 Comment
  POM59403  Valeriana sitchensis subsp. scouleri Ethel Tracy 1917-6-12 s.n. Humboldt Scotia bluff, along Eel River from South Fork to Scotia. 61 Comment
  CAS-BOT-BC76055  Vancouveria hexandra Harley P. Chandler 1901-5-1 1162 Humboldt North Coast Ranges. Humboldt Bay. 30 Comment
  HSC48842  Vancouveria hexandra Brad Klipfel 1973-7-15 198 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC56438  Vancouveria hexandra Griswold, Butler 1979-7-12 7165 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC3387  Vancouveria hexandra N. D. Dennis 1965-5-2 37 Humboldt 2 mi. N of Trinidad on Hwy. 101 Comment
  HSC76284  Vancouveria planipetala Teresa Prendusi 1981-7-9 189 Humboldt Near Cedar Camp. 1268 Comment
  RSA120717  Vancouveria planipetala S. S. Tillett 1956-7-6 613 Humboldt Along Bar Shanty Road, 9 mi. from Orleans. 945 Comment
  UC1196348  Vancouveria planipetala Joseph P. Tracy 1919-5-30 5171 Humboldt near Willow Creek (hill slopes at West Side of Trinity River); Northern Coast Ranges, w side of Trinity River, Willow Creek 152 Comment
  HSC102701  Ventenata dubia J. P. Smith 2013-6-16 13729 Humboldt Along State Route 36, just west of the 33.68 highway sign (milepost). 758 Comment
  UC1198212  Veratrum californicum var. californicum Joseph P. Tracy 1932-7-20 10733 Humboldt Corral Prairie Trinity Summit 1584 Comment
  JEPS86092  Veratrum californicum var. californicum Wayne Roderick 1966-6-28 Humboldt 9 mi e Bridgeville 609 Comment
  UC1173646  Veratrum insolitum Joseph P. Tracy 1936-8-8 15127 Humboldt on Ridge 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  HSC21740  Verbena lasiostachys var. lasiostachys Paul Shields Aug 1955 Humboldt 5 mi. N of Meyers Flat. Comment
  UC1239563  Verbena lasiostachys var. lasiostachys Joseph P. Tracy 1911-7-9 3479 Humboldt near mouth of Willow Creek; Trinity River Valley 152 Comment
  UC154022  Verbena lasiostachys var. lasiostachys Joseph P. Tracy 1908-6 2775 Humboldt opposite Buck Mt; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC23729  Veronica americana Tim Baroni 1971-7-6 128 Humboldt 15 mi. S of Ferndale on Mattole Rd. Comment
  HSC53820  Veronica americana Terry Griswold, Marvin Butler 1979-7-10 6261 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC90696  Veronica americana Gail Newton 1983-6-5 3557 Humboldt Elk River Wildlife Area, Eureka Comment
  UC582550  Veronica americana Joseph P. Tracy 1937-7-2 15389 Humboldt ne of Hawkins Bar (Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC21197  Veronica americana W. F. Nickel 1965-5-15 Humboldt 1/4 mi. E of Arcata on road to Arcata Reservoir, near Jolly Giant Parking Lot Comment
  HSC78977  Veronica peregrina subsp. xalapensis L. P. Janeway, K. Berg, Rudy Becking 1984-4-11 720 Humboldt N Spit of Humboldt Bay, BLM lands ('Coast Guard Reservation') 3 Comment
  SEINET6988462 Image available Veronica peregrina var. xalapensis Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie near serpentine outcrops, about 4 miles southeast of Kneeland. Comment
  SEINET3825239 Image available Veronica scutellata Malcolm A. Nobs, S. Galen Smith 1949-8-3 1190 Humboldt Southern outskirts of Eureka Comment
  HSC12789  Veronica serpyllifolia subsp. humifusa Jana Kattenhorn 1970-10-28 152 Humboldt Mad River at the mouth of Lindsey Creek, N Bank Rd. off Hwy. 299 Comment
  CHSC31325  Vicia Mark Stopher 1980-6-4 101 Humboldt Uncommon in diked off upland habitat along Elk River near Hwy 101 bridge. 1 Comment
  HSC37952  Vicia americana var. americana Peter Sorensen 1976-6-16 Humboldt Woodley Island Comment
  HSC74383  Vicia americana var. americana M. A. Baker 1980-6-28 2474 Humboldt Near Mad River Buttes 1445 Comment
  RSA91235  Vicia angustifolia F. W. Peirson 1926-7-13 7059 Humboldt Mad River, near Blue Lake Comment
  HSC81921  Vicia gigantea Thomas W. Nelson, Jane P. Nelson 1979-7-3 4966 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC89513  Vicia gigantea M. Roantree 1985-4-25 7 Humboldt E side of Trinidad Head Comment
  RSA34309  Vicia hirsuta C. Kistner 1935-5-5 s.n. Humboldt Arcata Comment
  HSC15259  Vicia hirsuta S. J. Roberts 1965-5-2 48 Humboldt Along old railroad Comment
  HSC89603  Vicia sativa subsp. nigra M. Roantree 1985-4-28 23 Humboldt E side of Trinidad Head, along dirt road Comment
  UC1222587  Vicia tetrasperma Joseph P. Tracy 1948-8-7 18083 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  HSC49921  Vinca major Maralyn O'Meara 1973-2-9 126 Humboldt McKinleyville, N side of Mad River along N Bank Rd., 0.5 mi. E of Hwy. 101 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
  UC1761500  Viola Milo S. Baker 1923-7-30 157 Humboldt near Fredericksons Ranch, Eureka-Bridgeville Hwy Comment
  HSC21757  Viola adunca N. J. Cole, D. E. Anderson 1965-4-13 16 Humboldt 1.5 mi. SE of Maple Creek Rd. jct. with Bald Hills Rd., SE of Korbel Comment
  HSC21760  Viola adunca G. N. Bos 1965-5-2 251 Humboldt 1 mi. E of Fernwood F.G.S. on Bald Mtn. Rd. 762 Comment
  UC1198443  Viola adunca Joseph P. Tracy 1927-4-24 7943 Humboldt Table Bluff; Northern Coast Ranges 91 Comment
  UC1761955  Viola adunca Mrs. Wilder 1926-4 Humboldt Carlotta Comment
  UC502937  Viola bakeri Joseph P. Tracy 1932-7-15 10596 Humboldt ridges e of Corral Prairie; Klamath Mountains, Trinity Summit 1828 Comment
  RSA0006435  Viola californica Milo S. Baker 1946-6-14 11492 Humboldt South Fork Mt., on forest road in open spots in Fir forest, near Miller Spring and beyond. 1524 Comment
  HSC98113  Viola cuneata Cara Witte 2007-6-26 360 Humboldt Horse Mountain Botanical Area. At intersection of 6N38 and National Forest 1. 1416 Comment
  HSC85895  Viola glabella Barry Silver 1986-4-23 534 Humboldt Bair Rd., 10 mi. NW of junction with Hwy. 299: Pine Ridge Summit Area 997 Comment
  SEINET181214 Image available Viola glabella Bassett Maguire, R Maguire; CB Maguire 1934-6-8 15202 Humboldt Bolling Grove State Park ; unspecified Comment
  UCR138885  Viola glabella E. Bower, S. Marubayashi, E. Perry 1997-5-10 53 Humboldt Titlow Hill Road, 1.5 mi past intersection with Hwy 299 975 Comment
  UC1198457  Viola glabella Joseph P. Tracy 1912-3-31 3562 Humboldt below Fieldbrook (on Lindsay Creek); Northern Coast Ranges, Lindsay Creek 30 Comment
  HSC101993  Viola macloskeyi M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 892 Humboldt Patterson Meadows 1555 Comment
  UC502950  Viola macloskeyi Joseph P. Tracy Jul 16 1930-Jul 19 1930 8974 Humboldt South Fork Mountain at McKay Camp McKay Camp; Northern Coast Ranges, South Fork Mountain, McKay Camp 1676 Comment
  HSC32842  Viola ocellata Thomas W. Nelson, James Nelson 1973-5-28 946 Humboldt McKeown Ranch N of Dinsmore Comment
  JEPS50441  Viola ocellata Joseph P. Tracy 1922-4-30 6034 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC97518  Viola ocellata Frances Reuss Harmon 2001-3-31 14 Humboldt Six Rivers National Forest: Gray Falls Picnic Area, along dirt road heading due S ca. 150 ft past the picnic area loop Comment
  UC1198450  Viola ocellata Joseph P. Tracy 1921-4-24 5452 Humboldt Phillipsville Flat, South Fork of Eel River Phillipsville Flat; Northern Coast Ranges, South Fork of Eel River, Phillipsvill 91 Comment
  HSC21878  Viola praemorsa subsp. praemorsa Greg Bos 1965-5-15 272 Humboldt 2 mi. W of Berry Summit along US 299 701 Comment
  HSC73542  Viola purpurea subsp. purpurea Gail Newton 1980-7-14 1478 Humboldt Near Last Chance Ridge. 1219 Comment
  RSA77739  Viola purpurea subsp. purpurea Joseph P. Tracy 1930-6-8 8730 Humboldt Kneeland Prairie. 762 Comment
  HSC21853  Viola sempervirens John A. Dubois 1962-4-28 2 Humboldt 20 mi. E of Arcata Comment
  HSC47655  Viola sempervirens Sheila Logan 1978-4-10 183 Humboldt Arcata Community Forest, near PSW Experimental Lab Comment
  HSC59449  Viola sempervirens Kenneth Clark 1979-3-31 2 Humboldt 0.7 mi. E of the end of Granite Ave., Arcata 46 Comment
  SEINET200824 Image available Viola sheltonii J. P. Tracy 1913-6-17 4187 Humboldt Buck Mountain near the summit Comment
  UC1761734  Viola sheltonii W. K. Parks Jul 1933 6237 Humboldt South Fork Mt. Comment
  POM92419  Vitis californica L. R. Abrams 1922-6-25 8220 Humboldt 6 miles N of Garberville Comment
  CAS-BOT-BC385063  Vitis girdiana Carl D. Duncan 1920-9-22 s.n. Humboldt Trinity River, Hoopa Valley Comment
  HSC70759  Vulpia bromoides R. York 1980-5-17 524 Humboldt Near Le Perron Peak 792 Comment
  HSC89549  Vulpia bromoides M. Roantree 1985-5-7 38 Humboldt W side of Trinidad Head, along trail. Comment
  HSC9838  Vulpia bromoides J. W. Johnson 1962-4-29 1303 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata. Comment
  SEINET200330 Image available Vulpia microstachys var. pauciflora Joeseph P. Tracy 4463 Humboldt Fort Seward 122 Comment
  UC1145192  Vulpia microstachys var. pauciflora Joseph P. Tracy 1942-6-23 17224 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UCD94900  Vulpia myuros A. H. Murphy 1951-5-18 39 Humboldt Cook Ranch, 1/2 mile northwest of Petrolia. Comment
  CAS-BOT-BC185939  Vulpia octoflora var. octoflora Joseph P. Tracy 1929-7-4 8618 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC128813  Whipplea modesta L. R. Abrams 1922-6-25 8222 Humboldt 6 mi. north of Garberville Comment
  CAS-BOT-BC128814  Whipplea modesta L. R. Abrams 1916-7-11 6016 Humboldt Mouth of Grizzly Creek on Van Duzen River - Redwood Forest Comment
  CAS-BOT-BC382931  Wyethia angustifolia Doris K. Kildale 1926-5-2 1897 Humboldt Willow Creek Flat 152 Comment
  HSC98077  Wyethia angustifolia Cara Witte 2007-7-11 485 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1396 Comment
  HSC100451  Wyethia angustifolia Carl C. Marshall Jul 1886 261 Humboldt Coast Range. Comment
  UC582641  Wyethia angustifolia Joseph P. Tracy 1937-7-24 15524 Humboldt prairie in Devil's Hole; Trinity Summit 1676 Comment
  JEPS32115  Wyethia longicaulis Jos. P. Tracy 1923-6-21 4254 Humboldt near summit of ridge between Van Duzen and Mad Rivers (Dinsmore Ranch) 1066 Comment
  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
  HSC41257  Xerophyllum tenax Brad Klipfel 1974-6-25 447 Humboldt Horse Mtn. Comment
  HSC76424  Xerophyllum tenax Denis Kearns 1981-6-24 29 Humboldt Near Cedar Camp 1219 Comment
  UC30055  Xerophyllum tenax Joseph Burtt Davy 1899-6-19 5630 Humboldt Hupa Mountain Comment
  HSC12015  Zeltnera muehlenbergii Wilbur Peterson 1970-10-31 102 Humboldt Scotia Bluffs, edge of Eel River Comment
  HSC45833  Zeltnera muehlenbergii K. Irwin 1978-8-13 Humboldt Along Seawood Dr., 100 m W of Hwy. 101, N of Trinidad Comment
  HSC8417  Zeltnera muehlenbergii Paul Shields Jul 1955 Humboldt 3 mi. S of Myers Flat Comment
  HSC15750  Zigadenus micranthus Doris K. Kildale 1936-3-23 1606 Humboldt Alton-Hydeville Rd. 30 Comment
  UC275515  Zigadenus micranthus var. micranthus Joseph P. Tracy 1924-7-4 6521 Humboldt Valley South Yager Creek; Northern Coast Ranges, Valley South Yager Creek 762 Comment
  UC275516  Zigadenus micranthus var. micranthus Joseph P. Tracy 1924-7-4 6521 Humboldt Valley South Yager Creek; Northern Coast Ranges, Valley of South Yager Creek 762 Comment
  UC302170  Zigadenus micranthus var. micranthus Joseph P. Tracy 1925-5-30 7041 Humboldt at summit leading to Laribee Valley; Northern Coast Ranges, McClellan Mountain 822 Comment



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