Search Results — 2000 specimen records retrieved (1366 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC55121  Abies concolor G. L. Clifton, Griswold 1979-8-1 11916 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  HSC45921  Abies grandis Jerome Peterson 1978-5-28 28 Humboldt HSC Campus, NW of Founders Hall Comment
  HSC73072  Abies procera Gail Newton 1980-7-24 1786 Humboldt Near Somes Mtn. 1615 Comment
  CAS-BOT-BC383850  Abronia latifolia Ira L. Wiggins 1930-7-7 4672 Humboldt Near Samoa Comment
  CAS-BOT-BC383851  Abronia latifolia Ira L. Wiggins 1932-7-19 5888 Humboldt Near Clam Beach, eight mi. north of Arcata Comment
  BLMAR389  Abronia umbellata subsp. breviflora Jennifer Anthony-Wheeler 2004-10-10 389 Humboldt Samoa/manilla dunes, Due west of water line tower number77 3 Comment
  HSC41124  Abronia umbellata var. breviflora Thomas W. Nelson, Jane P. Nelson, James Nelson 1976-9-26 3265 Humboldt Along beach S of Fern Canyon. Comment
  CAS-BOT-BC330548  Acer circinatum H. E. McMinn 1922-8-5 355 Humboldt Near Van Duzen River Comment
  HSC27877  Acer circinatum Clifton Raymond Chesbrough 1973-6-19 75 Humboldt 0.25 mi. from Harris and T Sts. on U St. Comment
  JEPS42746  Acer circinatum W. L. Jepson 1902-6-22 1915 Humboldt near Rio Del; near Rio Del Comment
  POM89162  Acer circinatum Joseph P. Tracy 1920-8-1 5346 Humboldt Kneeland Prairie Lawrence Creek 457 Comment
  HSC58053  Acer glabrum var. torreyi G. L. Clifton, Griswold 1979-8-1 11919 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  RSA20961  Acer glabrum var. torreyi Carl B. Wolf 1937-9-13 9336 Humboldt North Coast Range, Clear Lake, between Grouse Mountain and Horse Mountain 1524 Comment
  CAS-BOT-BC331585  Acer macrophyllum Doris K. Kildale 1927-4-17 3090 Humboldt Briceland Bridge, 0.5 mile W of Garterville 114 Comment
  OBI36632  Acer macrophyllum David J. Keil 1983-7-2 17307 Humboldt Ca. 10.5 mi E of jctn with US 101 along SR 299 Comment
  UC718416  Acer macrophyllum Wolf and Johnson 1934-10-11 6756 Humboldt Redwood Highway 6 4/10 mi w Humboldt Redwood Park (Eel River); w of Humboldt Redwood Park, Eel River 91 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-BC331592  Acer macrophyllum G. A. Coleman 1901-7-16 s.n. Humboldt Near Barberville Comment
  SD90228  Achillea millefolium Benjamin C. Stone 1952-6-25 140 Humboldt 15 miles south of Klamath on Hwy. 101. 14 Comment
  UC1125414  Achillea millefolium H. L. Person 1932-7-16 9 Humboldt highway n Trinidad; Rock Point Quad. Comment
  HSC12754  Achillea millefolium M. J. Athey 1970-12-5 26 Humboldt Along old road to Trinidad Head, Trinidad Comment
  SD42586  Achlys triphylla subsp. triphylla Carl B. Wolf 1937-6-19 8914 Humboldt North Coast Range, 7.2 miles above Bridgeville on grade to Dinsmores 455 Comment
  CAS-BOT-BC210653  Achnatherum lemmonii Joseph P. Tracy 1928-6-24 8466 Humboldt Valley of South Yager Creek 762 Comment
  RSA249338  Achnatherum nevadense D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5624 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  SBBG67348  Acmispon americanus R. Hartwell 1938-8-3 98 Humboldt near Weott Comment
  UCD104078  Acmispon brachycarpus H. E. Parks 1941-8-1 24183 Humboldt Little River State Park. Comment
  HSC32835  Acmispon denticulatus Thomas W. Nelson, James Nelson 1973-5-28 949 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC99546  Aconitum columbianum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 211 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-BC391411  Aconitum columbianum subsp. columbianum Joseph P. Tracy 1937-8-12 15661 Humboldt Snow Camp 1402 Comment
  HSC82405  Aconogonon davisiae Thomas W. Nelson 1979-7-11 5021 Humboldt N Trinity Mtn. and ridge to E, SE of Water Dog Lake 1829 Comment
  CAS-BOT-BC29864  Adenocaulon bicolor Carl B. Wolf 1927-8-21 766 Humboldt In Stephen's Grove Comment
  CAS-BOT-BC62293  Adiantum aleuticum Carl D. Duncan 1920-9-22 s.n. Humboldt Trinity River, Hoopa Valley Comment
  HSC33657  Adiantum aleuticum M. Wetherwax 1975-6-1 173 Humboldt Next to Simpson Cr. Comment
  SEINET11722736  Adiantum aleuticum E. A. York 1990-1-10 2672 Humboldt USGS Redwood Field Station, Arcata Comment
  UC197911  Adiantum jordanii Joseph P. Tracy 1914-5-14 4427 Humboldt Fort Seward; Northern Coast Ranges 121 Comment
  UC62707  Adiantum jordanii Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5729 Humboldt Supply Creek Comment
  CAS-BOT-BC65625  Adiantum jordanii Ira L. Wiggins 1957-6-21 14137 Humboldt 1 mile south of Garberville on east side of road Comment
  UCSB29304  Adiantum jordanii Phelps, M. 1972-3-23 Humboldt 1.5mi from Garberville, along Old Briceland Rd., 1000 yards N of roadside 213 Comment
  HSC102183  Agastache urticifolia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1097 Humboldt Patterson Meadows 1555 Comment
  HSC98730  Agastache urticifolia Cara Witte 2007-7-20 553 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  UC249533  Ageratina occidentalis Joseph P. Tracy 1922-7-15 6101 Humboldt gravel bar near Blue Lake; Northern Coast Ranges of California, Mad River 15 Comment
  RSA15581  Ageratina occidentalis Carl B. Wolf 1927-8-27 s.n. Humboldt On the Klamath River 2 mi. below the Salmon River Comment
  RSA168824  Ageratina occidentalis Joseph P. Tracy 1950-7-31 19223 Humboldt In woods, Friday Ridge 1220 Comment
  UC34633  Ageratina occidentalis Chestnut and Drew Jul 13 1888-Jan 1 1900 Humboldt Jannigan's Comment
  UC582749  Agoseris grandiflora Joseph P. Tracy 1927-5-30 8093 Humboldt Garberville 121 Comment
  OBI17128  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1942-7-19 17275 Humboldt Vicinity of Garberville Comment
  CAS-BOT-BC29626  Agoseris grandiflora var. grandiflora LeRoy Abrams 1922-6-25 8237 Humboldt 2 mi S of Fortuna Comment
  UC204168  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1918-7-14 5076 Humboldt grassy borders of field Eureka; Northern Coast Ranges 0 Comment
  HSC82039  Agoseris heterophylla Thomas W. Nelson, James Nelson 1980-6-10 5408 Humboldt Along Swayback Ridge 4-wheel drive road, 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  UC29354  Agoseris heterophylla var. heterophylla H. N. Bolander 1867-1 6494 Humboldt Red Mountains Comment
  UC249843  Agoseris hirsuta Joseph P. Tracy 1923-6-20 6316 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley 304 Comment
  POM126128  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6280 Humboldt Bear Ridge Ridge 305 Comment
  RSA152379  Agrostis densiflora Joseph P. Tracy 1936-6-8 14873 Humboldt Trinidad 6 Comment
  UC1145066  Agrostis densiflora Joseph P. Tracy 1938-8-28 16136 Humboldt clay bluff facing ocean Stone Lagoon 6 Comment
  CAS-BOT-BC127279  Agrostis exarata Joseph P. Tracy 1927-6-19 8193 Humboldt Northern Coast Region. Big Lagoon. 6 Comment
  HSC75270  Agrostis exarata J. O. Sawyer, M. A. Ericksen 1980-8-18 4058 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  HSC98576  Agrostis exarata Cara Witte 2007-7-20 556 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  UC1145059  Agrostis exarata Joseph P. Tracy 1936-8-7 15084 Humboldt head of, near Grizzly Camp Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC186904  Agrostis exarata Joseph P. Tracy 1911-7-7 3386 Humboldt 3 mi nw Junction of Willow Creek with Trinity River; Northern Coast Ranges 914 Comment
  UC212878  Agrostis exarata Joseph P. Tracy 1919-9-18 5226 Humboldt Northern Coast Ranges, Trinity Summit 1889 Comment
  UC526892  Agrostis exarata Joseph P. Tracy 1932-7-14 10550 Humboldt Wet Meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC1103524  Agrostis hallii J. P. Tracy 1912-7-23 3803 Humboldt about 5 mi above mouth South Fork Eel River 60 Comment
  UC33716  Agrostis hallii Joseph Burtt Davy and Walter C. Blasdale 1899-6-27 5873 Humboldt Martins Ferry Comment
  CAS-BOT-BC139123  Agrostis oregonensis Joseph P. Tracy 1925-7-5 7173 Humboldt Northern Coast Ranges. Bald Mountain. Near High Prairie. 1066 Comment
  UC249863  Agrostis scabra Joseph P. Tracy 1924-8-31 6841 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 91 Comment
  RSA10067  Agrostis stolonifera Joseph P. Tracy 1924-8-17 6819 Humboldt Trinidad 61 Comment
  UC526889  Agrostis stolonifera Joseph P. Tracy 1927-7-16 8253 Humboldt Elk River, mouth Northern Coast Region 6 Comment
  HSC104460  Aira caryophyllea Jeff Barrett 2009-4-1 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC74428  Aira caryophyllea Gail Newton 1980-8-10 2058 Humboldt Near Blake Mountain 1707 Comment
  HSC8863  Aira caryophyllea Robert Wunner 1962-5-5 Humboldt Denny Forest Service campground Comment
  UC1541535  Aira caryophyllea Harold E. Parks June 1936 5850 Humboldt Spruce Cove Trinidad 60 Comment
  SEINET10839747  Aira caryophyllea Harold E. Parks, Susan T. Parks Parks 5850 Humboldt Spruce Cove, Trinidad. Comment
  CAS-BOT-BC138195  Aira praecox Joseph P. Tracy 1925-5-24 7013 Humboldt Northern Coast Ranges. Eureka. 60 Comment
  HSC2924  Allium amplectens J. P. Tracy 1926-5-15 7483 Humboldt Kneeland Prairie Comment
  UC1198194  Allium amplectens Joseph P. Tracy 1930-6-21 8777 Humboldt Larrabee Valley 731 Comment
  HSC65901  Allium bolanderi var. bolanderi M. A. Baker 1980-6-26 2444 Humboldt Near Sims Creek 610 Comment
  HSC32148  Allium campanulatum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5599 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC39432  Allium campanulatum Thomas W. Nelson, Jane P. Nelson 1976-7-1 2918 Humboldt N side of Lassic Peak 1738 Comment
  UC666932  Allium falcifolium Joseph P. Tracy 1933-7-11 12658 Humboldt Horse Mountain 1432 Comment
  HSC76440  Allium siskiyouense Denis Kearns 1981-6-24 27 Humboldt Near Cedar Camp 1219 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
  UCSB18228  Allium unifolium 1961-7-3 Humboldt Along Eel River, 7.4 miles north of Phillipsville 243 Comment
  CAS-BOT-BC476629  Allium unifolium M. S. Jessel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  UC774997  Alnus incana subsp. tenuifolia Carl B. Wolf 1937-8-13 9268 Humboldt 12 mi e Hoopa Valley (on new road toward Trinity Summit); North Coast Range 1676 Comment
  CAS-BOT-BC169537  Alnus rubra Doris K. Kildale 1928-2-17 4273 Humboldt Patricks Point Comment
  CAS-BOT-BC169542  Alnus rubra Carl B. Wolf 1930-10-26 1767 Humboldt SO edge of Bog Lagoon, near Redwood Highway Bridge 9 Comment
  CHSC130  Alnus rubra A. Small 1953-4-1 Humboldt Near Ferndale. Comment
  OBI6019  Alnus rubra Carl B. Wolf 1931-8-28 2366 Humboldt Redwood hwy , 4-1/2 mi N of fortuna on the road to Eureka Comment
  UC187254  Alopecurus aequalis Joseph P. Tracy 1911-7-7 3400 Humboldt 3 mi. n.w. of junction of Willow Creek with Trinity R. (at meadows on mt. side, near Beebe's Ranch); Northern Coast Ranges 914 Comment
  CAS-BOT-BC138016  Alopecurus geniculatus Joseph P. Tracy 1933-7-20 12802 Humboldt North Coast Ranges. Arcata Bottom. 15 Comment
  HSC90773  Alopecurus geniculatus Gail Newton 1982-5-31 3565 Humboldt Elk River Wildlife Area, Eureka Comment
  RSA129279  Alopecurus pratensis H. L. Person 1932-5-11 19401 Humboldt Redwood Highway, Arcata o Eureka. 0 Comment
  UCD55810  Alopecurus pratensis R. Tofsrud 1948-7-1 s.n. Humboldt Scotia. Comment
  HSC38343  Ambrosia chamissonis Peter Sorensen 1976-7-14 Humboldt Woodley Island Comment
  HSC46976  Ambrosia chamissonis J. P. Smith, Thomas W. Nelson 1977-6-30 9224 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  RSA26851  Ambrosia chamissonis I. L. Wiggins 1940-7-10 9486 Humboldt Big Lagoon. Comment
  CAS-BOT-BC13707  Ambrosia chamissonis A. A. Heller 1924-7-21 13869 Humboldt Salt marsh at Eureka Comment
  JEPS45134  Amelanchier utahensis W. L. Jepson 1902-7-15 2031 Humboldt Mud Spring to Trinity Summit 1524 Comment
  UC183554  Amelanchier utahensis Joseph P. Tracy 1913-6-17 4188 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  UC492196 Image available Amelanchier utahensis Joseph P. Tracy 1927-6-12 8140 Humboldt Horse Mountain; Northern Coast Ranges 1524 Comment
  UC54750 Image available Amsinckia intermedia Mrs. M. H. Manning 1901-1 156 Humboldt near Hupa; ; near Hupa Comment
  HSC23719  Anagallis arvensis Tim Baroni 1971-7-5 104 Humboldt 8 mi. E of Petrolia Comment
  HSC59142  Anagallis arvensis Terry Roth 1979-4-21 13 Humboldt Misty Mtn. Tree Farm Rd. off of Hookton Rd., near residence 46 Comment
  HSC67526  Anagallis arvensis J. P. Smith 1970-6-7 3806 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  HSC79547  Anagallis arvensis Kenneth Clark 1980-4-18 572 Humboldt 300 yds. E of Dead Man's Gulch; widespread through Shelter Cove 5 Comment
  CAS-BOT-BC45141  Anaphalis margaritacea Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CDA30216  Anaphalis margaritacea M. K. Beyers, I. Shepardson 2009-9-13 256 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  HSC67040  Anaphalis margaritacea J. P. Smith 1971-10-9 5043 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC76343  Anaphalis margaritacea D. K. Imper 1981-7-21 890 Humboldt Near Table Bluff 38 Comment
  RSA416576  Anaphalis margaritacea Maude Minthorn s.n. Humboldt Ferndale Comment
  HSC95077  Anaphalis margaritacea Andrea Pickart 2002-7-3 163 Humboldt S side Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  POM232054  Anaphalis margaritacea Roxana S. Ferris 1937-8-21 9387 Humboldt Face of cliff above beach, Shelter Cove. 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
  SEINET6734966 Image available Anaphalis margaritacea H. E. Parks, S. T. Parks 1943-1 24237 Humboldt North Coast Ranges, along highway, Stone Lagoon Comment
  HSC56211  Anemone deltoidea G. L. Clifton, Griswold 1979-8-2 12216 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1197382  Angelica genuflexa Joseph P. Tracy 1946-8-25 17635 Humboldt 2 mi s of Fields Landing (near Still Ranch) 6 Comment
  UC1197383  Angelica genuflexa Joseph P. Tracy 1937-7-17 15442 Humboldt 2 mi s of Fields Landing (near Still Ranch); Northern Coast Region 6 Comment
  UC673053  Angelica genuflexa Joseph P. Tracy 1940-9-26 16725 Humboldt Eureka, near south city limits Eureka 6 Comment
  HSC71406  Angelica hendersonii J. M. DiTomaso 1980-8-1 1818 Humboldt Table Bluff, S of Eureka 9 Comment
  JEPS14104  Angelica hendersonii Joseph P. Tracy 1930-7-21 8896 Humboldt s point of Cape Mendocino Cape Mendocino 3 Comment
  BLMAR431  Angelica lucida Clara Sander 2003-7-12 431 Humboldt South Spit, South spit- east side 3 Comment
  HSC71276  Angelica lucida J. M. DiTomaso 1980-6-8 1577 Humboldt Next to Hwy 101 between Arcata and Eureka, 1.5 mi. S of Indianola Rd. 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
  HSC48315  Angelica tomentosa Brad Klipfel 1973-8-3 303 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  SEINET13943410 Image available Angelica tomentosa W. A. Weber 1964-1 12204 Humboldt Mountain grade between summit of ridge separating Redwood Creek from Hoopa Valley, a few miles west of Hoopa Comment
  UCD127180  Angelica tomentosa Joseph DiTomaso 1980-8-15 1864 Humboldt 5 miles west of Willow Creek at 34.4 mile road mark on Highway 299. Comment
  SD42569  Angelica tomentosa var. hendersonii Carl B. Wolf 1937-8-11 2910 Humboldt 1/2 mile east of Alton 17 Comment
  HSC81929  Anisocarpus madioides Thomas W. Nelson, Jane P. Nelson 1979-7-3 4950 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  CAS-BOT-BC63858  Antennaria argentea Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1828 Comment
  CHSC105172  Antennaria suffrutescens B. Castro; L. P. Janeway 1996-8-3 704 Humboldt Six Rivers NF, near Horse Mtn. Along Titlow Hill Rd (Rd #1), on flat ridgetop. 1469 Comment
  HSC4650  Antennaria suffrutescens D. E. Anderson 1965-6-1 3771 Humboldt On ridge along Friday Hill Rd., about 2 mi. NE from its junction with Titlow Hill Rd. 1159 Comment
  CAS-BOT-BC84720  Anthemis cotula Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  RSA254784  Anthemis cotula Thomas W. Nelson 1973-8-19 1111 Humboldt McKeown Ranch north of Dinsmore Comment
  HSC40404  Anthoxanthum occidentale Linda M. Barker 1976-4-13 1387 Humboldt 3 mi. W of Arcata Comment
  UCD85354  Anthoxanthum occidentale A. H. Murphy 1947-2-1 s.n. Humboldt Along road 1 mile S of McCann. Comment
  UC905596  Anthoxanthum odoratum David D. Keck 1948-7-2 6010 Humboldt 1.5 mi. E. of Freshwater (Garfield), on Kneeland road Comment
  UCD56165  Anthoxanthum odoratum A. H. Murphy 1948-5-3 s.n. Humboldt 1.5 mile north of Loleta, Table Bluff, H. Perrott's Ranch. Comment
  UC902211  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1949-8-11 18468 Humboldt 2 to 6 mi s Grouse Mt.; Kinsey Ridge 1280 Comment
  POM132652  Apiastrum angustifolium L. R. Abrams 1916-7-11 6030 Humboldt Mouth of Grizzly Creek Comment
  POM89844  Apocynum sibiricum Chesnut, E. R. Drew 1888-07 s.n. Humboldt Grouse Creek Comment
  CAS-BOT-BC392167  Aquilegia formosa Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  CAS-BOT-BC17260  Arabidopsis thaliana Joseph Prince Tracy 1932-5-17 10091 Humboldt Northern Coast Ranges. Trinity River Valley, at Willow Creek. 152 Comment
  HSC57633  Arabis breweri var. breweri G. L. Clifton, Griswold 1979-7-25 10787 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC75964  Arabis glabra Walter Overton, Butler 1979-8-2 12585 Humboldt Near Bret Hole, close to the town of Hoopa. 1554 Comment
  RSA46724  Aralia californica Doris K. Kildale 1936-10-3 15099 Humboldt Willow Creek Comment
  CAS-BOT-BC167258  Aralia californica Doris K. Kildale 1926-11-14 2860 Humboldt Stephen's Grove near Miranda Comment
  RSA171939  Aralia californica R. F. Thorne 1957-9-2 19010 -a Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  HSC95925  Arbutus menziesii Will Ferrand 2002-4-27 38 Humboldt 1 mi. E of the intersection of Hwy. 299 and Willow Creek Rd. 198 Comment
  UC1198123  Arceuthobium campylopodum Joseph P. Tracy 1935-7-22 14127 Humboldt Corral Prairie Trinity Summit 1584 Comment
  JEPS120247  Arceuthobium campylopodum Talitha Derksen and Keli McElroy 2012-8-2 Humboldt East slope of Blake Mountain, north end South Fork Mountain, 5 mi. west of Hyampom Comment
  CAS-BOT-BC25209  Arctostaphylos canescens subsp. canescens J. P. Tracy 1941-4-11 16861 Humboldt Willow Creek Canyon, along Trinity Highway Comment
  CAS-BOT-BC23729  Arctostaphylos columbiana Joseph P. Tracy 1934-3-11 13152 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC23772  Arctostaphylos columbiana Joseph P. Tracy 1948-3-13 17955 Humboldt Table Bluff 91 Comment
  CAS-BOT-BC23778  Arctostaphylos columbiana P. C. Everett; E. K. Balls 1959-10-26 23975 Humboldt 4 mi. SE from Honeydew, along Old Coast road to Ettersburg. 457 Comment
  HSC35750  Arctostaphylos columbiana Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1994 Humboldt French Camp, Bald Hills. Comment
  RSA622698  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27681 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  UC1198660  Arctostaphylos columbiana Joseph P. Tracy 1937-7-17 15440 Humboldt Eureka 45 Comment
  UC397307  Arctostaphylos columbiana Joseph P. Tracy 1923-2-18 6142 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  CAS-BOT-BC23735  Arctostaphylos columbiana C. Hart Merriam 1921-7-7 s.n. Humboldt Ridges west of the Van Duzen River. Comment
  SEINET11998372  Arctostaphylos columbiana W. Knight, Knight, I. 1989-1 6476 Humboldt Patrick's Point State Park 24 Comment
  RSA12449  Arctostaphylos columbiana var. columbiana C. B. Wolf 1934-6-30 5844 Humboldt 5 1/2 mi. from Shelter Cove on rd. to Briceland. 152 Comment
  SEINET11998344  Arctostaphylos klamathensis Unknown 1989-1 s.n. Humboldt Fish Lake Area near Weitchpec, near Klameth River 549 Comment
  HSC27128  Arctostaphylos manzanita J. P. Smith, J. O. Sawyer 1973-2-10 5840 Humboldt 2.7 mi. W of Hwy. 96 on Brannan Mtn. Road, N of Willow Creek 366 Comment
  RSA633024  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27809 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  UCD52072  Arctostaphylos manzanita Joseph P. Tracy 1940-7-14 16689 Humboldt Wilder Ridge (near Kings Peak). 762 Comment
  RSA0049659  Arctostaphylos manzanita subsp. glaucescens Dean Wm. Taylor 2011-5-4 21119 Humboldt Larabee Valley, along Highway 36 about 1 mile east of the eastern end of the valley at the bridge for the Little Van Duzen River 701 Comment
  CAS-BOT-BC38829  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1930-8-3 9141 Humboldt Dinsmore's Ranch: On Van Duzen River opposite Buck Mountain. 670 Comment
  CAS-BOT-BC38835  Arctostaphylos manzanita subsp. manzanita 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
  JEPS38923  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1933-4-2 10949 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS38980  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1934-7-1 13275 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1198680  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1930-6-15 8757 Humboldt Dobbyn Creek 152 Comment
  SEINET2031084 Image available Arctostaphylos media Joseph P. Tracy 1923-1 6171 Humboldt Around Humboldt Bay; Table Bluff 61 Comment
  HSC55162  Arctostaphylos nevadensis Gilbert Muth 1979-8-1 12136 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC72694  Arctostaphylos nevadensis Gail Newton 1980-6-24 576 Humboldt Near Ladder Rock 1570 Comment
  UC585957  Arctostaphylos nevadensis Joseph P. Tracy 1927-6-12 8132 Humboldt Horse Mountain 1432 Comment
  SEINET11989136  Arctostaphylos nevadensis subsp. knightii W. Knight, Knight, I. 1982-1 4517 Humboldt Tilden Botanic Garden, Berkeley, orig. from French Camp on road between Orick & Wichepec Comment
  HSC98990  Arctostaphylos nevadensis subsp. nevadensis Cara Witte 2008-6-27 774 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1365 Comment
  HSC74562  Arctostaphylos patula M. A. Baker 1980-5-17 1270 Humboldt Near Le Perron Peak 1066 Comment
  HSC28130  Arctostaphylos uva-ursi J. D. Ackerman, A. M. Montalvo 1973-3-27 42 Humboldt 1.5 mi. N of Manila Comment
  HSC39960  Arctostaphylos uva-ursi Linda M. Barker 1976-4-13 1379 Humboldt 3 mi. W of Arcata Comment
  UC1196867  Arctostaphylos uva-ursi Joseph P. Tracy 1947-8-31 17928 Humboldt near Samoa; Humboldt Bay 6 Comment
  SEINET2031082 Image available Arctostaphylos uva-ursi Joseph P. Tracy 1901-1 1061 Humboldt Region about Humboldt Bay 0 Comment
  HSC69625  Armeria maritima subsp. californica R. Kalal 1979-5-29 34 Humboldt Along Samoa Blvd. 3 Comment
  RSA296782  Armeria maritima subsp. californica Clark L. Miller 1979-5-24 2 -150 Humboldt Samoa Dunes off Samoa Blvd. Comment
  HSC98121  Arnica cernua Cara Witte 2007-5-24 119 Humboldt Along National Forest 1. Approximately 1 mile south of intersection with 6N38 and 6N36. 1476 Comment
  RSA417143  Arnica discoidea H. M. Pollard 1947-8-8 s.n. Humboldt South River Road, south of Orleans Comment
  UC249832  Arnica discoidea Joseph P. Tracy 1923-6-20 6335 Humboldt Briceland 304 Comment
  SEINET3098738  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt Trinity Summit. Fir woods near Corral Prairie 1520 Comment
  HSC47778  Arrhenatherum elatius Michael A. Watkins 1978-6-10 6 Humboldt Arcata, E side of the 7th Street overpass to Hwy. 101 Comment
  HSC41002  Artemisia douglasiana J. O. Sawyer 1975-10-17 2713 Humboldt S slopes of N Trinity Mtn. Comment
  SEINET11842962  Artemisia douglasiana F. H. Utech 1986-1 86 -412 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  RSA289423  Artemisia dracunculus Lyman Benson 1929-7-16 1824 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  SD41467  Artemisia pycnocephala Edith A. Purer 1932-7-27 4123 Humboldt Samoa Comment
  HSC4746  Artemisia pycnocephala David Adams 1960-7-17 Humboldt 2 miles S of Samoa 0 Comment
  JEPS17992  Artemisia pycnocephala George B. Rossbach 1955-6-10 513 Humboldt near lagoon and lighthouse Humboldt Bay (between Fairhaven and end of sandy point off Eureka) Comment
  RSA296735  Artemisia pycnocephala J. P. Smith, Thomas W. Nelson 1977-6-30 9216 Humboldt Samoa Peninsula just east of the drag strip. Comment
  CAS-BOT-BC97244  Artemisia suksdorfii A. A. Heller 1924-7-25 13844 Humboldt near the beach at Agate Beach near Trinidad Comment
  CHSC101365  Aruncus dioicus var. pubescens C. Sander; J. Wheeler 2004-9-1 CA 330 -62 Humboldt Ecoregion 14. Growing along Titlow Hill road off of Hwy 299. 1188 Comment
  POM279301  Asarum caudatum Lyman Benson 1928-7-12 s.n. Humboldt Weott Ranger Station. Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  RSA114387  Asarum caudatum G. R. Campbell 1955-9-20 21468 Humboldt 4 mi. NE of Strongs Station (Van Duzen River) on Yager road Comment
  POM127914  Asclepias speciosa P. E. Goddard 1906-06 688 Humboldt Blocksburg Comment
  HSC102064  Aspidotis densa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 966 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC55067  Aspidotis densa G. L. Clifton, Griswold 1979-7-31 11647 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  CAS-BOT-BC193133  Astragalus rattanii var. rattanii Volney Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  UC33312  Astragalus rattanii var. rattanii W. C. Blasdale 1896-6-8 Humboldt Graham's Range Comment
  CAS-BOT-BC200854  Astragalus umbraticus D. E. Anderson 1965-5-15 3694 Humboldt About 7 miles north of Hoopa on Bloody Camp Prairie road Comment
  HSC76042  Asyneuma prenanthoides Overton, Butler 1979-8-2 12569 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  OBI6248  Athyrium filix-femina Robert J. Rodin 1969-8-16 8369 Humboldt Near Carlotta, near Van Duzan River Comment
  UC197922  Athyrium filix-femina var. cyclosorum Joseph P. Tracy 1912-7-25 3814 Humboldt along Black Creek Kneeland Prairie; Northern Coast Ranges 762 Comment
  POM318821  Atriplex rosea Patricia Wilder 1968-8-21 4404 Humboldt Northern coastal arm of Humboldt Bay, ca 2 miles SW of Samoa. Humboldt Bay drainage area. 5 Comment
  UCD56151  Avena barbata A. H. Murphy 1951-2-28 5 Humboldt South of Petrolia. Comment
  HSC100249  Avena fatua J. P. Smith, & J. O. Sawyer 2010-5-2 12793 Humboldt At junction of Hwy. 96 and Big Rock Access Road. 145 Comment
  UC526701  Avena fatua Joseph P. Tracy 1933-5-20 12229 Humboldt 3 mi s point of cape (sw slopes fronting ocean); Northern Coast Ranges, Cape Mendocino 3 Comment
  UCD56455  Avena fatua Kathleen Moore 1964-7-14 s.n. Humboldt Kneeland. 1/2 mile north of Star Barn. Comment
  RSA14722  Baccharis pilularis C. B. Wolf 1927-8-29 1219 Humboldt Devils' Gate, S of Cape Mendocino Comment
  UC673089  Baccharis pilularis Joseph P. Tracy 1940-10-17 16771 Humboldt Camp Grant, 2-5 mi e of South Fork of Eel River Eel River 45 Comment
  HSC64185  Barbarea orthoceras J. O. Sawyer, M. A. Ericksen 1979-6-23 3390 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  UC1198289  Barbarea orthoceras Joseph P. Tracy 1932-7-16 10642 Humboldt along creek in McKay Prairie 1524 Comment
  RSA10095  Beckmannia syzigachne Joseph P. Tracy 1928-6-24 8472 Humboldt Valley of south Yager Creek Comment
  UC204749  Bellis perennis Joseph P. Tracy 1918-4-7 4864 Humboldt near Trinidad; Northern Coast Ranges 30 Comment
  UC34578  Bellis perennis Chesnut and Drew 1888-7-8 Humboldt Arcata Comment
  SFV18538  Bellis perennis M. Cavelti 2002-5-4 34 Humboldt On A street off 11th street, along western side of road. 20 Comment
  HSC74356  Berberis aquifolium var. repens Gail Newton 1980-6-17 228 Humboldt Near Onion Mtn. 1341 Comment
  HSC28089  Berberis nervosa J. D. Ackerman 1973-4-29 77 Humboldt 2 mi. NE of Kneeland Comment
  UC169912  Berberis pinnata Mrs. M. H. Manning April, 1901 33 Humboldt near Hupa Comment
  CAS-BOT-BC66274  Blechnum spicant L. R. Abrams; R. Bacigalupi 1922-6-25 8299 Humboldt near northern county line Comment
  CAS-BOT-BC14301  Boechera platysperma Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mountain Trail. 1676 Comment
  UC562685  Boechera platysperma Joseph P. Tracy 1935-7-28 14319 1/2 Humboldt Head of Devils Hole Trinity Summit, Devils Hole 1828 Comment
  HSC103082  Boechera sparsiflora Sydney Carothers 2014-7-3 21 Humboldt Six Rivers National Forest, summit of Mt. Lassic 1791 Comment
  RSA182022  Boisduvalia densiflora var. densiflora Joseph P. Tracy 1918-7-5 5020 Humboldt White Thorn Valley. 305 Comment
  CHSC96445  Bolboschoenus maritimus subsp. paludosus Gordon Leppig 1999-10-25 1268 Humboldt State Highway 101, mile marker 61.40. UTM zone 10, 4519N, 406 E. 2 Comment
  JEPS101806  Bolboschoenus maritimus subsp. paludosus Dean W. Taylor 1991-9-15 12290 Humboldt Big Lagoon, along Highway 101 near the mouth of Tom Creek. 3 Comment
  HSC75263  Boykinia major J. O. Sawyer, M. A. Ericksen 1980-8-18 4057 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  HSC76195  Boykinia major Overton, Butler 1979-8-2 12503 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC37396  Boykinia occidentalis Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 510 Humboldt Along Lost Man Creek. 38 Comment
  UC420420  Boykinia occidentalis Mrs. M. H. Manning 1901-4 55 Humboldt near Hupa; near Hupa Comment
  CAS-BOT-BC420267  Boykinia occidentalis L. R. Abrams 1922-6-25 8265 Humboldt between Trinidad & Big Lagoon Comment
  POM274466  Boykinia occidentalis Lyman Benson 1928-7-12 388 Humboldt Weott Ranger Station. Seaward N Coast mtn range. S Fork Eel River. 61 Comment
  RSA32653  Boykinia occidentalis Doris K. Kildale 1925-6-17 701 Humboldt [Unspecified] Comment
  CAS-BOT-BC36698  Brassica rapa Roxana S. Ferris 1937-8-21 9391 Humboldt Face of Cliff above Shelter Cove. Comment
  CAS-BOT-BC145428  Briza maxima Joseph P. Tracy 1930-6-15 8758 Humboldt Alder Point. 152 Comment
  CHSC20341  Briza maxima D. E. Anderson 1965-5-8 3626 Humboldt About 1 mile east of Blue Lake on Hw. 299. Comment
  CHSC31284  Briza maxima Mark Stopher 1980-5-16 68 Humboldt Along Hwy 101 near jct with Elk River, s of Eureka. Comment
  RSA244953  Briza maxima Glen I. Wilcox 1973-5-26 s.n. Humboldt West shore of freshwater lagoon. Comment
  RSA614433  Briza maxima K. L. Chambers 1993-5-5 5717 Humboldt Hwy. 101, where it meets the ocean just south of Orick. Comment
  UCD57276  Briza maxima Joseph P. Tracy 1950-5-30 18711 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC145570  Briza minor Doris K. Kildale 1925-6-28 916 Humboldt Fleener Creek. Comment
  HSC79436  Briza minor Kenneth Clark 1980-6-14 664 Humboldt Shelter Cove, lower alluvial terrace of Dead Man's Gulch 30 Comment
  JEPS72933  Briza minor Lincoln Constance 1934-5-23 611 Humboldt se slope of mt. above Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  CAS-BOT-BC145571  Briza minor Henry M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans. Comment
  CAS-BOT-BC484217  Brodiaea elegans subsp. elegans Doris K. Kildale 1926-6-27 2209 Humboldt Larabee Valley 701 Comment
  HSC35940  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson 1975-7-15 2033 Humboldt Beside Bald Hills Rd. 1 mi. E of Redwood National Park Comment
  UC1197734  Brodiaea elegans subsp. elegans Joseph P. Tracy 1930-7-23 9137 Humboldt Cold Springs Horse Mountain 1432 Comment
  UC1222692  Brodiaea elegans subsp. elegans Joseph P. Tracy 1950-7-31 19234 Humboldt near Clear Lake; Grouse Mountain, Buck Prairie 1573 Comment
  UC1222693  Brodiaea elegans subsp. elegans Joseph P. Tracy 1950-6-23 18867 Humboldt 3 mi ne Alderpoint (at creek); Dobbyn Creek 213 Comment
  HSC33078  Brodiaea terrestris subsp. terrestris Thomas W. Nelson, J. D. Ackerman 1974-5-14 1267 Humboldt Beside old Samoa-Crannell railroad bed adjacent to the Mad River Slough N of Emerson Mill Comment
  UC1197742  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1911-6-25 3244 Humboldt Bucksport, region about Humboldt Bay Northern Coast Region, Humboldt Bay 0 Comment
  UC15039  Brodiaea terrestris subsp. terrestris J. P. Tracy 1901-6-23 1159 Humboldt immediate vicinity Eureka 0 Comment
  HSC91591  Brodiaea terrestris subsp. terrestris E. Mackey 1986-6-18 Humboldt Patrick's Point State Park on Ceremonial Rock Comment
  UC1197743  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1904-7-4 2114 Humboldt Bucksport Northern Coast Region, Humboldt Bay Region 0 Comment
  CAS-BOT-BC149451  Bromus briziformis Henry M. Pollard 1948-7-19 s.n. Humboldt River road near Van Fleet Ranch, near Orleans. Comment
  RSA127007  Bromus carinatus H. S. Yates 1936-6-17 5692 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  UC552686  Bromus carinatus var. carinatus Joseph P. Tracy 1935-5-16 13806 Humboldt Northern Coast Ranges, Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  UCD59082  Bromus carinatus var. marginatus Joseph P. Tracy 1950-6-15 18786 Humboldt Mail Ridge. North of Harris 7 miles. 1036 Comment
  UC34027  Bromus catharticus Henry Melde 1902-2-8 Humboldt Eureka Comment
  HSC35281  Bromus diandrus J. D. Ackerman, A. M. Montalvo 1975-6-22 491 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36 Comment
  HSC40340  Bromus diandrus Linda M. Barker 1976-4-30 1403 Humboldt 3 mi. W of Arcata Comment
  UCD58512  Bromus diandrus Linda M. Barker 1976-4-30 1403 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCD58705  Bromus hordeaceus Linda M. Barker 1976-5-13 1477 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC9205  Bromus laevipes True Hoyle 1967-7-24 29467 Humboldt Oscar Stapp Ranch near Showers Creek and Showers Pass 1006 Comment
  UCD59545  Bromus rubens Joseph P. Tracy 1948-6-13 18053 Humboldt Harris. 762 Comment
  RSA126835  Bromus sterilis H. S. Yates 1936-5-17 5714 Humboldt Near Burr valley; South Fork Pk. 915 Comment
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Apr 6 2017
  HSC54214  Bromus tectorum Griswold, Butler 1979-7-12 7264 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC70780  Bromus tectorum R. York 1980-5-17 546 Humboldt Near Le Perron Peak 1066 Comment
  SEINET200634 Image available Bromus tectorum Joseph P. Tracy 1931-5-3 9349 Humboldt Along Mad River near Blue Lake. 15 Comment
  HSC9375  Bromus vulgaris D. E. Anderson 1965-9-5 4080 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  RSA46798  Cacaliopsis nardosmia Doris K. Kildale 1926-4-18 1776 Humboldt McClellan Mountain. Comment
  UC1199255  Cacaliopsis nardosmia Joseph P. Tracy 1908-6 2822 Humboldt nw slope of Buck Mountain Buck Mountain 1219 Comment
  HSC103973  Cakile maritima C. Reynolds 2015-3-16 18 Humboldt Along Freshwater Beach, due south of the Kuchel Visitor Center 1 Comment
  OBI36381  Cakile maritima David J. Keil 1983-7-1 17284 Humboldt Ca. 5 mi NW of Petrolia along Mattole Rd Comment
  HSC46014  Cakile maritima Catherine Chin 1978-8-13 104 Humboldt Trinidad State Park, College Cove Beach Comment
  CAS-BOT-BC185180  Calamagrostis nutkaensis A. A. Heller 1924-7-24 13880 Humboldt On the bluff at Humboldt County camp 7 miles south of Trinidad. Comment
  CAS-BOT-BC185181  Calamagrostis nutkaensis Doris Kildale Gillespie 1931-6-7 10653 Humboldt South Fork Mountain. Blake Lookout. 1726 Comment
  SEINET200617 Image available Calamagrostis rubescens Joseph P. Tracy 1938-7-17 16082 Humboldt Local. Garberville. Comment
  HSC90224  Calandrinia ciliata L. Watson, J. Meninga Mar 1991 19 Humboldt Near Manila, Mad River Slough and Dunes, SW edge of parking lot Comment
  UC1714425  Callitriche marginata Joseph P. Tracy 1901-6-30 1207 Humboldt Immediate Vicinity Eureka 0 Comment
  HSC62829  Callitriche stagnalis J. M. DiTomaso 1979-5-29 1080 Humboldt Arcata Bottoms, 1.7 mi. W of Alliance Rd. on Lanphere Rd. Comment
  HSC57987  Calocedrus decurrens G. L. Clifton, Griswold 1979-7-31 11728 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC180215  Calochortus amabilis Joseph P. Tracy 1914-5-14 4422 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  HSC31756  Calochortus tolmiei Timothy B. Devine 1974-5-4 322 Humboldt Bank of Chezem Rd. at junction of Hwy. 299 457 Comment
  HSC97969  Calochortus tolmiei Cara Witte, Michael Scott 2007-6-22 347 Humboldt Board Camp Mountain, jeep trail between Tri Board Camp and Fork Camp 1565 Comment
  JEPS17823  Calochortus tolmiei Joseph P. Tracy 1927-5-8 7960 Humboldt Philipsville Phillipsville 121 Comment
  CAS-BOT-BC494356  Calochortus tolmiei Doris K. Kildale 1926-5-2 1851 Humboldt Willow Creek Flat 152 Comment
  CAS-BOT-BC494363  Calochortus tolmiei Volney Rattan 1882-6-1 s.n. Humboldt Kuseland Comment
  HSC26870  Calochortus tolmiei Clifton Raymond Chesbrough 1973-6-19 94 Humboldt 0.5 mi. N of College Cove along coast Comment
  UC201997  Calochortus vestae Joseph P. Tracy 1918-7-29 4513 Humboldt Eureka Northern Coast Ranges Comment
  UC195348  Calochortus vestae Joseph P. Tracy 1916-6-19 4713 Humboldt Bosworth's Ranch Northern Coast Ranges, Laribee Creek 457 Comment
  CAS-BOT-BC273317  Calycadenia fremontii Henry M. Pollard 1945-8-21 s.n. Humboldt Orleans to Somes Bar Comment
  RSA33968  Calycadenia truncata subsp. scabrella Doris K. Kildale 1927-7-3 3656 Humboldt Willow Creek Flat. Comment
  UC1196477  Calypso bulbosa Joseph P. Tracy 1942-6-23 17241 Humboldt near Box Camp (Trinity Summit); Trinity Summit 1524 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
  HSC32545  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson 1973-7-10 1030 Humboldt Humboldt/Trinity County line, Mt. Lassic (Signal Peak) 1790 Comment
  UC1222150  Calystegia purpurata subsp. purpurata Joseph P. Tracy 1950-6-8 18769 Humboldt near Petrolia (2 mi down river, hills between town and Ocean); near Petrolia Comment
  HSC6364  Calystegia soldanella J. W. Johnson 1961-8-17 1021 Humboldt W.M. Lanphere Farm, Samoa Peninsula Comment
  HSC6366  Calystegia soldanella K. P. St. John 1965-5-21 40 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  RSA296783  Calystegia soldanella Clark L. Miller 1979-5-24 1 -149 Humboldt Sandy Dunes off Somoa Blvd. approx. a half mile from Coast Guard Station Gate. Comment
  RSA394824  Calystegia soldanella B. C. Templeton 1931-10-15 s.n. Humboldt Eureka Comment
  UCD126159  Calystegia soldanella Linda M. Barker 1976-6-1 1559 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CHSC445  Calystegia soldanella M. Underhill 1952-7-13 Humboldt 0 Comment
  HSC31366  Calystegia soldanella Larry E. DeBuhr, G. Wallace 1972-5-23 650 Humboldt Freshwater Lagoon 2.5 mi. S of Orick on Hwy. 101 Comment
  UC1586964  Camassia Juha Pykala and D. H. Norris 1987-6-5 1391 Humboldt e of Maple Creek (Snow Mountain Lake); Snow Mountain Lake 1386 Comment
  CHSC40211  Camassia quamash subsp. quamash L. P. Janeway 1984-5-13 778 Humboldt Along the Kneeland/Bridgeville Road ca 19 mi east of the Kneeland post office and 1 mi south of N Fk Yager Creek. 640 Comment
  HSC38195  Camissonia cheiranthifolia Peter Sorensen 1976-6-4 Humboldt N Spit of Humboldt Bay, S of Samoa near airport Comment
  HSC103972  Camissonia cheiranthifolia subsp. cheiranthifolia C. Reynolds 2015-3-16 20 Humboldt Along Freshwater Beach, north of the Kuchel Visitor Center 1 Comment
  RSA0065040  Camissonia cheiranthifolia subsp. cheiranthifolia Marcus E. Jones 1931-8-2 s.n. Humboldt McKinleyville. [State incorrect listed as Oregon] Comment
  HSC78087  Camissonia strigulosa L. P. Janeway, Amy Eisenberg 1984-4-24 745 Humboldt On N Spit of Humboldt Bay, SE side of intersection of Samoa and Fairhaven Rds. and E of the Willow patch 3 Comment
  CAS-BOT-BC160235  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Carl B. Wolf 1927-8-29 1221 Humboldt Seacoast, Devil's Gate, south of Cape Mendocino Comment
  CAS-BOT-BC160244  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Philip A. Munz 1925-6-20 9891 Humboldt Clam Beach, 14 miles North of Eureka Comment
  CHSC55903  Camissoniopsis cheiranthifolia subsp. cheiranthifolia L. P. Janeway 1987-7-31 2541 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  SD38658  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Edith A. Purer 1932-7-27 4153 Humboldt Comment
  UC179967  Campanula prenanthoides Joseph P. Tracy 1914-9-6 4623 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1066 Comment
  SEINET10462988  Campanula prenanthoides Van Dke 1931-6-30 VAN DYKE s.n. Humboldt Willow Creek Comment
  SEINET10463112  Campanula prenanthoides Willis L. Jepson Jepson s.n. Humboldt S FORK OF EEL RIVER, BIG HORSE MTN. Comment
  SEINET10840306  Campanula prenanthoides Bruce Allen 1936-7-14 Allen 36 A243 Humboldt Willow Creek Comment
  SEINET10873254  Campanula prenanthoides Rogers McVaugh 1941-8-3 McVaugh 6214 Humboldt 3.5 miles south of Garberville, steep shaly roadside bank, in woods Comment
  UC416597  Campanula prenanthoides Harley P. Chandler 1901-6-14 1476 Humboldt Orleans to Somes Bar; Klamath River 304 Comment
  UC602560  Campanula scouleri Joseph P. Tracy 1937-7-25 15560 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC6624  Capsella bursa-pastoris Paul Shields Jul 1955 Humboldt 2 mi. S of Weott Comment
  HSC6630  Capsella bursa-pastoris J. L. Baker 1965-3-26 17 Humboldt 4 mi. N of Arcata on North Bank Rd. Comment
  HSC6690  Cardamine californica D. E. Anderson 1962-3-17 1934 Humboldt 4 mi. S of Lone Star Ranch Comment
  HSC86324  Cardamine californica K. Berg, R. Bonning 1983-5-21 490 Humboldt 3.3 mi. up from Berry Summit and Hwy. 299, above road 1250 Comment
  SD56729  Cardamine californica Darley F. Howe 1963-5-26 3554 Humboldt 3.7 miles on Ball Mill Road, east of Orick. 490 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
  HSC98050  Cardamine californica var. integrifolia Cara Witte 2007-5-8 5 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  RSA0034558  Cardamine californica var. integrifolia Victor Duran 1933-5-11 3405 Humboldt Van Duzen River, near Bridgeville. Comment
  CHSC77460  Cardamine californica var. sinuata Vernon H. Oswald 2000-4-3 9909 Humboldt Trail from County Parking Lot to headlands at Elk Head northwest of Trinidad. 24 Comment
  SEINET3377729  Cardamine nuttallii var. gemmata K. T. Harper 2002-1 2002 -6 Humboldt Prarrie Creek State Park, near Orick, on Big Tree Trail. Comment
  HSC90395  Cardamine oligosperma Jean Hanson 1980-4-12 37 Humboldt Indian (Gunther) Island, Humboldt Bay, W end of island Comment
  CAS-BOT-BC384765  Cardionema ramosissimum Alice Eastwood 1907-5-15 s.n. Humboldt Samoa Comment
  SEINET200666  Carex abrupta Joseph P. Tracy 1928-6-17 8450 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  HSC44514  Carex aquatilis J. P. Smith, Steve Selva 1970-6-30 Humboldt Comment
  HSC74693  Carex athrostachya Gail Newton 1981-8-6 2403 Humboldt Near Humbug Creek 1256 Comment
  UC1265367  Carex bolanderi Robert F. Thorne and P. Everett 1965-8-5 35136 Humboldt Mt. Chamisal, below summit Comment
  UC195346  Carex bolanderi Joseph P. Tracy 1916-6-25 4747 Humboldt e Trinidad; Northern Coast Ranges, Redwood Creek 152 Comment
  HSC69863  Carex densa Thomas W. Nelson, Ken Hindley 1978-5-28 4086 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  CAS-BOT-BC34976  Carex densa Joseph Prince Tracy 1936-6-3 14848 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC1103110  Carex deweyana subsp. leptopoda Joseph P. Tracy 1932-7-17 10677 Humboldt Trinity Summit, ridges E of Corral Prairie 1828 Comment
  UC194806  Carex echinata Joseph P. Tracy 1914-7-4 4532 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  UCR52379  Carex exsiccata L. P. Janeway 1982-6-12 4 Humboldt Dry Lagoon 3 Comment
  CAS-BOT-BC19969  Carex exsiccata Doris K. Kildale 1927-7-23 3797 Humboldt Hoaglin Lake near Lassecks Peaks [Signal Peak]. Comment
  SEINET7483969 Image available Carex exsiccata Joseph P. Tracy 1934-1 13502 Humboldt Along coast in front of South End of Stone Lagoon. 3 Comment
  HSC43478  Carex feta Thomas W. Nelson 1976-7-9 2999 Humboldt Along W side of ridge S of E peak of Lassic Mtn., (Signal Peak). 1524 Comment
  HSC48040  Carex fracta D. H. Norris 1972-6-26 23033 Humboldt Along Grouse Mtn. Rd., 5 mi. from intersection with Horse Mtn. Rd. Comment
  RSA121755  Carex globosa H. L. Person 1932-5-11 s.n. Humboldt Near Arcata. 0 Comment
  UC1103061  Carex globosa Joseph P. Tracy 1939-4-25 16224 Humboldt mouth of creek Bull Creek 60 Comment
  JEPS25999  Carex gracilior Joseph P. Tracy 1936-5-29 14826 Humboldt on ridge e Orick; Gans Prairie 548 Comment
  UC197484  Carex gynodynama Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3603 Humboldt Northern Coast Ranges, Hydesville. Comment
  UC2020226  Carex gynodynama Joseph P. Tracy 1906-6-24 2508 Humboldt Northern Coast Region, south slope of Humboldt Hill. Comment
  UC213330  Carex gynodynama Joseph P. Tracy 1920-5-18 5324 Humboldt Northern Coast Ranges: On South Fork, 5 miles above Dyerville. Along Eel River from South Fork to Scotia. Comment
  CAS-BOT-BC22313  Carex harfordii Joseph Prince Tracy 1935-6-8 13936 Humboldt Eureka. 60 Comment
  CAS-BOT-BC22320  Carex harfordii Joseph Prince Tracy 1935-6-8 13938 Humboldt Eureka. 60 Comment
  CAS-BOT-BC21751  Carex hassei Joseph Prince Tracy 1927-4-23 7917 Humboldt Big Lagoon. 6 Comment
  HSC103083  Carex hassei Sydney Carothers 2014-6-22 25 Humboldt Six Rivers National Forest, Lassics Botanical Area. Below trail to Mount Lassic. 1707 Comment
  CAS-BOT-BC21021  Carex hendersonii W. R. Dudley 1899-6-19 s.n. Humboldt Scotia. Comment
  JEPS80025  Carex hendersonii Joseph P. Tracy 1905-6-25 2202 Humboldt at Eureka Northern Coast Ranges, Eureka 0 Comment
  UC1103592  Carex hendersonii J. P. Tracy 1899-4-30 312 Humboldt immediate vicinity Eureka 0 Comment
  UC1103593  Carex hendersonii Joseph P. Tracy 1937-6-20 15348 Humboldt 10 mi upstream mouth of Bear River; Bear River 152 Comment
  SEINET11631285  Carex hendersonii Unknown 1936-1 13479 Humboldt near Scotia Comment
  CHSC90288  Carex hoodii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8579 B Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  HSC102162  Carex hoodii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1072 Humboldt Patterson Meadows 1555 Comment
  HSC98937  Carex interior Cara Witte 2008-7-30 971 Humboldt Forest Service Road 5N04. 1/4 mile east of intersection with Forest Service Road 4N70. 1583 Comment
  CHSC90274  Carex lenticularis var. impressa Thomas W. Nelson; Jane P. Nelson 1987-6-11 8598 Humboldt North Coast Ranges. Box Spring at Box Camp. Along trail to North Trinity Mountain. 1524 Comment
  UC604160  Carex lenticularis var. limnophila David D. Keck 1938-8-5 4774 Humboldt Big Lagoon Comment
  CHSC69839  Carex lenticularis var. lipocarpa Ruby Van Deventer 1959-6-20 Humboldt Humboldt-Del Norte County line. Onion Lake. 1356 Comment
  JEPS79865  Carex leporina Joseph P. Tracy 1936-6-28 15014 Humboldt near Murphy Meadow (Bald Mountain); Bald Mountain 1066 Comment
  SEINET7565155 Image available Carex leptopoda David Castaner 1989-6-19 10248 a Humboldt Fern Canyon. Comment
  CAS-BOT-BC31612  Carex luzulina var. ablata Doris K. Kildale 1931-5-10 10554 Humboldt Snow Camp. Comment
  UC1103587  Carex luzulina var. luzulina Joseph P. Tracy 1933-7-16 12771 Humboldt South Fork Mountain, McKay Camp Northern Coast Ranges 1676 Comment
  HSC82969  Carex lyngbyei A. L. Eicher 1986-5-14 Humboldt Bordering Humboldt Bay, 0.3 mi. S of junction of Samoa Blvd. and Vance Ave. 1 Comment
  RSA122772  Carex lyngbyei H. S. Yates 1936-6-23 s.n. Humboldt 1 mile west of Bayside; sea level 0 Comment
  HSC71111  Carex multicaulis M. A. Baker 1980-5-23 1387 Humboldt Near Buck Mtn. 343 Comment
  HSC98955  Carex multicaulis Cara Witte 2008-7-3 826 Humboldt Friday Ridge Road/ 6N08. Approximately 1 mile north of intersection with National Forest 1. 1567 Comment
  UC152055  Carex multicaulis Joseph P. Tracy 1950-7-1 18958 Humboldt near Friday Camp; Grouse Mountain, Friday Ridge 1219 Comment
  HSC102119  Carex multicostata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1023 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC562447  Carex nudata Joseph P. Tracy 1935-6-22 13959 Humboldt mouth Larrabee Creek; North Coast Ranges, Eel River 45 Comment
  HSC7071  Carex obnupta J. W. Johnson 1961-9-3 1081 Humboldt Arcata, Christenson Farm, Samoa Peninsula Comment
  POM118373  Carex obnupta Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC249766  Carex obnupta Joseph P. Tracy 1923-6-24 6371 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC37833  Carex obnupta Thomas W. Nelson 1976-3-4 2263 Humboldt Eureka, beside Buhne St. between S St. and Harrison Ave. Comment
  RSA246864  Carex obnupta Robert F. Thorne, Percy C. Everett 1965-8-7 35199 Humboldt Big Lagoon, south end. 2 Comment
  UC194815  Carex ovalis Joseph P. Tracy 1914-7-4 4547 Humboldt High Prairie Northern Coast Ranges, Bald Mountain; High Prairie on Bald Mt., Humboldt Co. 1066 Comment
  CAS-BOT-BC119237  Carex pachystachya Joseph Prince Tracy 1930-7-16 8984 Humboldt South Fork Mountain; in wet meadow at McKay Camp. 1676 Comment
  CAS-BOT-BC119242  Carex pachystachya Joseph Prince Tracy 1939-7-9 16340 Humboldt Snow Camp 1402 Comment
  HSC102163  Carex pachystachya M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1073 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC119165  Carex pansa David Daniels Keck 1938-8-5 4766 Humboldt Calm Beach in dunes. Comment
  HSC60292  Carex pansa Phyllis Krieg 1979-5-2 Humboldt Coast Guard sand dunes, Samoa 0 Comment
  JEPS26001  Carex preslii Joseph P. Tracy 1938-6-9 15878 Humboldt borders of pond, Dobbyn Creek Dobbyn Creek 152 Comment
  JEPS25961  Carex subbracteata Joseph P. Tracy 1918-7-5 5017 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley 304 Comment
  HSC102154  Carex subfusca M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1062 Humboldt Patterson Meadows 1555 Comment
  CHSC104060  Carex tumulicola Peter F. Zika 2009-6-15 24495 Humboldt Outer North Coast Range. Above Route 299, 2.3 road miles W of junction with Chezen Road between Lord-Ellis and Berry summits. 680 Comment
  UC585639  Carex tumulicola Joseph P. Tracy 1937-5-17 15295 Humboldt near Willow Creek; Trinity River Valley 152 Comment
  CAS-BOT-BC115538  Carex unilateralis Joseph Prince Tracy 1927-7-17 8276 Humboldt Three Cabins; grassy slopes on lower western foothills of Chaparral Mountain. 457 Comment
  UC1103081  Carex unilateralis Joseph P. Tracy 1938-6-15 15932 Humboldt Fortuna 30 Comment
  UC1152074  Carex unilateralis Joseph P. Tracy 1948-6-13 18034 Humboldt Larrabee Creek Road, halfway between Bridgeville and Blocksburg; Larrabee Valley 731 Comment
  UCD96839  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
  RSA170321  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt Luke's Prairie on ridge 1 mile north above Bull Creek, about 2 miles west of Dyerville Comment
  UC162563  Castilleja Joseph P. Tracy 1911-5-30 3199 Humboldt Eureka; Northern Coast Region 0 Comment
  HSC98626  Castilleja affinis subsp. affinis Cara Witte 2007-6-4 185 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC1196741  Castilleja affinis subsp. affinis Joseph P. Tracy 1942-7-1 17366 Humboldt opposite Buck Mountain (Dinsmore's, along Van Duzen River); Van Duzen River 762 Comment
  HSC104289  Castilleja affinis subsp. litoralis Samantha E. Andres 2016-6-3 10 Humboldt About 0.5 mi. down the road from Table Bluff to the OHV road at South Jetty 29 Comment
  JEPS32452  Castilleja affinis subsp. litoralis Peter H. Raven 1963-5-15 18374 Humboldt about 1.5 mi s Trinidad; Luffenholz Beach Comment
  JEPS35842  Castilleja affinis subsp. litoralis Rimo Bacigalupi, and L. R. Heckard 1964-8-2 8988 Humboldt just n Table Bluff lighthouse (s of Humboldt Bay) Comment
  JEPS35843  Castilleja affinis subsp. litoralis Rimo Bacigalupi, and L. R. Heckard 8989 Humboldt just n Table Bluff lighthouse (s end of Humboldt Bay); Humboldt Bay Comment
  JEPS26533  Castilleja applegatei subsp. martinii Joseph P. Tracy 1927-5-14 8001 Humboldt near South Fork; Trinity River Valley 182 Comment
  JEPS3617  Castilleja applegatei subsp. martinii Clyde Ritchie Bell 1951-4-21 Humboldt about 4 mi n Orleans (along Calif Hwy 96 (Klamath River road)) Comment
  CAS-BOT-BC255523  Castilleja applegatei var. pinetorum Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Mt. 1828 Comment
  HSC82541  Castilleja arachnoidea Thomas W. Nelson 1979-7-11 5000 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC48266  Castilleja attenuata D. E. Anderson 1965-5-8 3642 Humboldt About 2 mi. N of Willow Creek on road running along E side of Trinity River Comment
  UCR39807  Castilleja attenuata L. P. Janeway 1984-5-5 754 Humboldt Road shoulder of Hwy 299 c. 1.5 mi west of Willow Creek 250 Comment
  UC1409053  Castilleja exserta subsp. latifolia Robert F. Thorne and P. Everett 1965-8-7 35219 Humboldt Samoa Peninsula 3 Comment
  JEPS103937  Castilleja exserta subsp. latifolia T. I. and F. M. Chuang 1991-7-9 7877 Humboldt Samoa Sandune, near Louisiana Pacific Plant. Comment
  JEPS3830  Castilleja miniata Joseph P. Tracy 1939-8-20 16329 Humboldt near Blue Lake; Mad River 15 Comment
  HSC72484  Castilleja pruinosa J. P. Smith, J. O. Sawyer 1973-5-12 6706 Humboldt 10.4 mi. from Redwood Creek on Hoopa Rd. Comment
  JEPS26532  Castilleja pruinosa Joseph P. Tracy Jun 1901 1485 Humboldt Klamath River; North Coast Ranges 426 Comment
  UC199387  Castilleja pruinosa Harley P. Chandler Jun 1901 1364 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Valley 152 Comment
  HSC72569  Castilleja pruinosa J. P. Smith, J. O. Sawyer 1976-5-2 8628 Humboldt S. R. 96, 4.9 mi. N of its junction with S.R. 299 122 Comment
  HSC20868  Castilleja rubicundula subsp. lithospermoides G. N. Bos 1965-5-2 244 Humboldt 8 mi. E of Korbel on Bald Mtn. Rd. 793 Comment
  UC1502117  Ceanothus R. Sutherland 1975-7-13 3 .13-75 Humboldt Pt. Delgada Quad. 518 Comment
  UC1502126  Ceanothus R. Sutherland 1975-7-1 3 .1.7 75 Humboldt along Baker Creek; Garberville Quad., along Baker Creek 335 Comment
  CAS-BOT-BC48531  Ceanothus cordulatus Doris K. Kildale 1926-9-5 2613 Humboldt Lasseck's Peaks 1661 Comment
  HSC55626  Ceanothus cordulatus Overton, Butler 1979-7-24 9605 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC97479  Ceanothus cordulatus Cara Witte 2007-5-29 135 Humboldt Along National Forest 1 on Kinsey Ridge. 1278 Comment
  CAS-BOT-BC49318  Ceanothus cuneatus Doris K. Kildale 1927-7-22 3833 Humboldt Lasseck's Peaks 1661 Comment
  UCD112090  Ceanothus cuneatus Thomas W. Nelson; James L. Nelson 1980-6-10 5444 Humboldt along branch road off Swayback Ridge Road, 0.5 mile east of junction. 1371 Comment
  CAS-BOT-BC49659  Ceanothus foliosus var. foliosus Joseph P. Tracy 1937-5-30 15314 Humboldt 3 miles south of Bridgeville 457 Comment
  SBBG4195  Ceanothus foliosus var. foliosus H. and M. Dearing 1932-5-10 987 Humboldt near Blue Lake Comment
  CAS-BOT-BC50055  Ceanothus incanus W. R. Dudley 1899-6-20 s.n. Humboldt Near Eel River in woods Comment
  HSC41837  Ceanothus incanus Tom Duebendorfer 1977-4-23 8 Humboldt 2.5 mi S of Shelter Cove Rd. S Fork of Bear Creek at Wailaki Campground 561 Comment
  OBI36663  Ceanothus integerrimus David J. Keil 1983-7-2 17325 Humboldt Ca. 4 mi SE of SR299 along Titlow Hill rd below Horse Mtn Summit rd Comment
  UC1198005  Ceanothus integerrimus Joseph P. Tracy 1934-4-15 13181 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC275285  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1924-5-11 6676 Humboldt Bull Creek Northern Coast Ranges 121 Comment
  UCSB12871  Ceanothus oliganthus var. sorediatus Zinke, P. 1950-10-4 Humboldt 2 miles southeast of Honeydew 182 Comment
  CAS-BOT-BC51210  Ceanothus parryi Carl B. Wolf 1927-8-30 1245 Humboldt Bank of stream of Ettersburg Comment
  CAS-BOT-BC51223  Ceanothus parryi C. Hart Merriam 1920-8-27 s.n. Humboldt South fork Eel River (10 miles so. of Garberville) Comment
  HSC43183  Ceanothus parryi R. Sutherland 1975-7-5 12 .5775 Humboldt 244 Comment
  OBI10389  Ceanothus parryi Carl B. Wolf 1941-7-27 11086 Humboldt N Coast Ranges, 5.8 mi W Maple Crk on rd to Freshwater 610 Comment
  SD53199  Ceanothus parryi D. F. Howe 1962-5-21 Humboldt 2.3 miles north of Garberville on #101 152 Comment
  CAS-BOT-BC52046  Ceanothus prostratus Doris K. Kildale 1926-4-25 1811 Humboldt Hoopa Mountain 792 Comment
  CAS-BOT-BC52954  Ceanothus thyrsiflorus Doris K. Kildale 1927-5-14 3289 Humboldt Big Lagoon - coast terrace Comment
  POM118613  Ceanothus thyrsiflorus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  RSA18143  Ceanothus thyrsiflorus Carl B. Wolf 1927-8-22 806 Humboldt 1 mile south of Orick. Comment
  UC1198011  Ceanothus thyrsiflorus Joseph P. Tracy 1933-6-7 12520 Humboldt Blue Slide Van Duzen River, Blue Slide (on Van Duzen River) 91 Comment
  HSC35599  Ceanothus velutinus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2014 Humboldt French Camp, Bald Hills. Comment
  JEPS42234  Ceanothus velutinus W. L. Jepson 1932-7-24 16382 Humboldt Fruitland Mail Ridge Comment
  UC582508  Centaurea X moncktonii Joseph P. Tracy 1933-8-22 12973 Humboldt at Eureka Comment
  CDA36344  Centaurea jacea Domenic Bongio 2011-11-15 PDR# 1414345 Humboldt Trinidad; Hwy 101 at mile-maker 104.05 near Patrick s Point Dr. 0 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
  RSA50142  Centaurium muehlenbergii E. K. Balls 1949-7-11 13970 Humboldt Nine miles from Bluff Creek, on Highway 96 on way to Willow Creek. 110 Comment
  UC562467  Centunculus minimus Joseph P. Tracy 1935-5-25 13834 Humboldt Fort Seward 106 Comment
  HSC70729  Cephalanthera austiniae Gail Newton 1980-7-14 1525 Humboldt Near Deadman Ridge 1097 Comment
  HSC98133  Cephalanthera austiniae Cara Witte 2007-6-27 372 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Near intersection with 4N32B 1516 Comment
  CAS-BOT-BC384900  Cerastium arvense Doris K. Kildale 1929-5-26 9142 Humboldt Klamath River at Orleans 152 Comment
  CAS-BOT-BC384901  Cerastium arvense Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UC1199058  Cercis occidentalis Joseph P. Tracy 1930-9-8 9176 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS44706  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1929-8-25 8661 Humboldt Trinity River Valley at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC492185  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1929-4-14 8538 Humboldt between Miranda and Redway (South Fork of Eel River); North Coast Ranges, South Fork of Eel River 91 Comment
  CAS-BOT-BC276488  Chaenactis douglasii var. douglasii Joseph P. Tracy 1932-7-12 10462 Humboldt Trinity Summit. Head of Brett Hole 1828 Comment
  HSC75939  Cheilanthes gracillima Overton, Butler 1979-7-24 9702 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC99115  Cheilanthes gracillima Cara Witte 2008-9-27 1044 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1483 Comment
  RSA273388  Chenopodium botrys Thomas W. Nelson, Jane P. Nelson 1977-9-3 3724 Humboldt Along Forest Service Rd. to north of Alder Springs. 1524 Comment
  HSC102586  Chimaphila menziesii M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1573 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  CAS-BOT-BC451383  Chimaphila menziesii Doris K. Kildale 1925-7-5 1027 Humboldt Willow Creek, Trinity River Valley 152 Comment
  HSC17948  Chimaphila menziesii D. E. Anderson 1963-5-18 2449 Humboldt Near junction of New and Trinity Rivers Comment
  HSC45430  Chimaphila menziesii Thomas W. Nelson, Jane Nelson Jul 1977 3565 Humboldt Along N side of ridge between Bear & Blanket Creeks 1494 Comment
  UC21651  Chimaphila umbellata J. Burtt Davy 1899-6-18 5620 Humboldt Bald Mt. near Korbel; North Coast Ranges, Bald Mt. Comment
  HSC8061  Chrysolepis chrysophylla Doris K. Kildale 1926-8-22 2570 Humboldt Bald Hills, beyond E end of cabin at Tomlinson's 716 Comment
  JEPS58688  Chrysolepis chrysophylla var. chrysophylla W. L. Jepson 1902-6 2150 Humboldt near McKee's (sw corner Humboldt County) 548 Comment
  UC519306  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1933-8-30 13036 Humboldt Grouse Mountain; North Coast Ranges 1524 Comment
  HSC8064  Chrysolepis sempervirens J. P. Tracy, H. E. Parks 1941-8-28 11541 Humboldt South Fork; Blake Lookout Area 1768 Comment
  CAS-BOT-BC420344  Chrysosplenium glechomifolium Doris K. Kildale 1927-4-10 3079 Humboldt Prarie Creek, Russ Grove of Redwoods Comment
  UC562732  Cicendia quadrangularis Joseph P. Tracy 1935-5-25 13902 Humboldt Dobbyn Creek 152 Comment
  UC642242  Cicuta douglasii Joseph P. Tracy 1927-9-25 8379 Humboldt 2 mi s of Field's Landing (near Still Ranch) 6 Comment
  HSC30333  Cicuta douglasii Dale R. Gradek 1974-5-29 89 Humboldt SE end of Big Lagoon County Park 3 Comment
  UCD127289  Cicuta douglasii R. Tofsrud; J. M. Tucker 1948-9-4 1860 Humboldt near mouth of Salmon Creek, east side of Highway 101, around 8 miles south of Eureka. Comment
  HSC56098  Circaea alpina subsp. pacifica G. L. Clifton 1979-7-31 11809 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC76203  Circaea alpina subsp. pacifica Overton, Butler 1979-8-2 12511 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC668240  Circaea alpina subsp. pacifica Joseph P. Tracy 1937-6-20 15349 Humboldt 10 mi. up stream from mouth of Bear R.; Bear R. 152 Comment
  UC677711  Circaea alpina subsp. pacifica C. C. and S. K. Harris 1936-6-22 672 Humboldt Yager Creek 731 Comment
  UC166541  Cirsium arvense Joseph P. Tracy 1906-7-4 2536 Humboldt near Hydesville 60 Comment
  HSC12339  Cirsium arvense Steve Dorei 1970-10-26 114 Humboldt SE corner of Old Arcata Rd. and Freshwater Rd. Comment
  UCSB15303  Cirsium arvense Breedlove, Dennis 1961-7-4 Humboldt Mad River, 1 mile east of Blue Lake on U.S. Highway 299 243 Comment
  CHSC97934  Cirsium cymosum T. R. Haig 1960-6-16 Humboldt Near quarry at Kneeland. Comment
  CAS-BOT-BC285533  Cirsium occidentale var. candidissimum Carl B. Wolf 1934-6-30 5839 Humboldt 7 mi. from Shelter Cove on road to Briceland 152 Comment
  OBI56358  Cirsium occidentale var. venustum B. Villegas 1998-8-5 s.n. Humboldt North Coast Ranges. Nr berry Summit on Titlow Hill Rd, 3.9 mi S of hwy 299 Comment
  CAS-BOT-BC160972  Clarkia amoena subsp. amoena L. R. Abrams 1922-6-25 8105 Humboldt Cloverdale - Hopland Rd. Comment
  HSC38460  Clarkia davyi A. Montalvo 1975-5-24 270 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  UC153945  Clarkia davyi Joseph P. Tracy 1910-4-24 3127 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  UC144076  Clarkia davyi Joseph P. Tracy 1907-7-20 2592 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  RSA0060033  Clarkia gracilis subsp. sonomensis Harlan Lewis, M. Lewis 1947-6-13 423 Humboldt Highway 36 at South Fork of Van Duzen River (Bridge 4-119) Comment
  UC144078  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1909-7-31 3030 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC35399  Clarkia purpurea subsp. quadrivulnera Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  HSC97934  Clarkia purpurea subsp. quadrivulnera Cara Witte 2007-6-14 282 Humboldt White Oak Opening. Along Kinsey Ridge. Near hunting camp. 1238 Comment
  UC180230  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1914-7-5 4569 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  CAS-BOT-BC172394  Clarkia purpurea subsp. viminea Henry M. Pollard 1948-7-19 s.n. Humboldt Near Orleans Comment
  UC1071918  Clarkia purpurea subsp. viminea H. and M. Lewis 1947-6-14 422 Humboldt Highway 36 at bridge 4-119 South Fork of Van Duzen River Comment
  HSC67184  Claytonia exigua subsp. exigua Thomas W. Nelson, James Nelson 1980-6-10 5435 Humboldt Along E side of Red Mtn. 1372 Comment
  HSC104160  Claytonia exigua subsp. exigua Andrea Pickart 2002-4-3 44 Humboldt Lanphere Dunes 25 Comment
  UC494167  Claytonia exigua subsp. glauca H. E. Parks and J. P. Tracy 1930-5-26 878 Humboldt Laribee Valley Comment
  SEINET6903113  Claytonia perfoliata Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  HSC39940  Claytonia rubra subsp. depressa Linda M. Barker 1976-3-22 1336 Humboldt 3 mi. W of Arcata Comment
  HSC17701  Claytonia rubra subsp. depressa D. B. Mitchell 1965-3-13 210 Humboldt 0.5 mi. N of US Coast Guard Station on Samoa Rd. Comment
  HSC99411  Claytonia rubra subsp. rubra K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 60 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
  HSC41232  Claytonia saxosa Brad Klipfel 1974-5-8 322 Humboldt Horse Mtn. Comment
  HSC55112  Claytonia sibirica G. L. Clifton 1979-7-31 11861 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC76598  Claytonia sibirica Teresa Prendusi 1981-7-24 474 Humboldt Near Whiteys Peak 1585 Comment
  UC1052461  Claytonia sibirica H. E. Parks Apr 1933 1421 Humboldt Spruce Cove; Trinidad Comment
  UCD20385  Claytonia sibirica K. Esau 1935-5-22 s.n. Humboldt Fort Seward. Comment
  UCR86959  Claytonia sibirica Walter Wisura 1993-5-9 4909 Humboldt Northwest; Hwy 299, 5.7 mi west of Willow Creek at E-fork camp ground 730 Comment
  RSA117688  Claytonia sibirica S. S. Tillett 1956-7-5 603 Humboldt Along State Hwy 96, above Klamath River, 2 miles S of Orleans. 152 Comment
  UC161049  Claytonia sibirica Joseph P. Tracy 1911-7-5 3326 Humboldt near mouth of Willow Creek (along Willow Creek, tributary of Trinity River); Northern Coast Ranges, Trinity River 304 Comment
  HSC78577  Claytonia washingtoniana C. E. Fellows 1970-4-18 258 Humboldt NE end of Big Lagoon, E side of Hwy. 101 Comment
  JEPS43173  Claytonia washingtoniana Joseph P. Tracy 1933-5-18 12193 Humboldt 5 mi w Blue Lake (along Mad River); Mad River 30 Comment
  HSC39957  Clinopodium douglasii Linda M. Barker 1976-6-22 1613 Humboldt 3 mi. W of Arcata Comment
  CAS-BOT-BC499343  Clintonia andrewsiana Marcus E. Jones 1924-4-28 s. n. Humboldt Scotia Comment
  UC14994  Clintonia andrewsiana Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5496 Humboldt between Camp Grant and Pepperwood; North Coast Ranges Comment
  HSC72683  Clintonia uniflora J. P. Smith 1977-7-3 9265 Humboldt Onion Lake Comment
  SEINET4170316  Clintonia uniflora Unknown 1908-6-27 2733 Humboldt Along Van Duzen River at foot of Buck Mountain, northwest slope 305 Comment
  HSC70387  Collinsia parviflora M. A. Baker 1980-6-8 1887 Humboldt Near Buck Flat. 1554 Comment
  JEPS6217  Collinsia parviflora Joseph P. Tracy Jul 16 1930-Jul 19 1930 8959 Humboldt near McKay Camp (openings in fir forest); Northern Coast Ranges, South Fork Mtn 1676 Comment
  UC582458  Collinsia rattanii Joseph P. Tracy 1935-6-23 13994 Humboldt French Camp Ridge 1066 Comment
  POM193011  Collinsia sparsiflora H. E. Parks 1930-5-25 792 Humboldt Laribee Valley. 793 Comment
  UC1196850  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3628 Humboldt near Hydesville (hillside between Alton and Hydesville); Northern Coast Region 30 Comment
  UC1197856  Collomia grandiflora Joseph P. Tracy 1933-8-30 13051 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  JEPS71016  Collomia grandiflora Lincoln Constance 1934-6-12 863 Humboldt n bank of river <at> Bull Cr. road; South Fork Eel River, Bull Creek Region, Dyerville Comment
  HSC89514  Collomia heterophylla M. Roantree 1985-4-28 20 Humboldt W side of Trinidad Head, along trail Comment
  UC535757  Collomia heterophylla Eleanor Armstrong 1934-5-17 Humboldt Garden Club Grove Comment
  HSC45406  Collomia tracyi Thomas W. Nelson, Jane P. Nelson 1977-7-4 3609 Humboldt Along road N from Alder Springs 1524 Comment
  JEPS26237  Collomia tracyi Joseph P. Tracy 1939-8-16 16420 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC157350  Comarum palustre Doris K. Kildale 1926-6-25 2173 Humboldt Big Lagoon Comment
  UCR275122  Conium maculatum Charity A. Hartshorn 2016-4-24 19 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  HSC49219  Coptis laciniata J. O. Sawyer 1977-4-23 2846 Humboldt Dagsaw Spring on road to Onion Mtn. Comment
  CAS-BOT-BC181556  Coptis laciniata Charlotte M. Hoak 1931-7-12 s.n. Humboldt Noyo, Northspur, 2nd bench back, southern limit Prairie Camp Comment
  HSC34283  Corallorhiza mertensiana Ken Irwin 1975-8-16 Humboldt Grogans Hole Area Comment
  HSC90967  Cordylanthus maritimus subsp. palustris Gail Newton 1982-6-5 3574 Humboldt Elk River Wildlife Area, Eureka. Comment
  JEPS70115  Cordylanthus maritimus subsp. palustris L. R. Heckard 1972-8-9 3152 Humboldt Margin of Humboldt Bay 2 mi s of Arcata; Humboldt Bay Comment
  HSC58546  Cordylanthus tenuis subsp. viscidus Overton, Butler 1979-7-24 9568 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  SD42328  Cordylanthus tenuis subsp. viscidus Carl B. Wolf 1937-8-13 9225 Humboldt North Coast Range, 8 mi E of Hoopa Valley on new road towards Trinity Summit 1219 Comment
  HSC41586  Cordylanthus tenuis subsp. viscidus Thomas W. Nelson, Jane P. Nelson 1977-9-3 3718 Humboldt Along ridge between Bear Creek and Blanket Creek 1494 Comment
  HSC75232  Corethrogyne filaginifolia D. M. Gordon 1982-9-20 Humboldt End of country road (Lanphere Rd.)on Hunt property. Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  UC581780  Corethrogyne filaginifolia Joseph P. Tracy 1928-5-20 8442 Humboldt near Petrolia Comment
  UC725642  Corethrogyne filaginifolia A. A. Heller 1924-7-23 13874 Humboldt Little River Comment
Read comments
Sep 29 2006
  HSC6413  Cornus nuttallii J. J. Wagoner 1965-5-1 20 Humboldt 6 mi. W of Willow Creek along Hwy. 299 Comment
  RSA46900  Cornus nuttallii Doris K. Kildale 1925-8-13 1134 Humboldt Willow Creek, bank of Trinity River. 152 Comment
  RSA0019453  Cornus occidentalis C. B. Wolf 1937-8-13 9251 Humboldt North Coast Range, 11 mi. E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  CAS-BOT-BC212183  Cornus sericea W. R. Dudley 1899-6-21 s.n. Humboldt Englewood Brook, Eel River Comment
  CAS-BOT-BC210536  Cornus sessilis Doris K. Kildale 1928-7-1 9435 Humboldt Klamath River at Bluff Creek Comment
  UC1103505  Corylus californica Joseph P. Tracy 1909-8-29 3080 Humboldt Humboldt Hill, N side Northern Coast Region, region about Humboldt Bay 0 Comment
  UC503087  Corylus californica Joseph P. Tracy 1931-8-16 9611 Humboldt near Briceland Northern Coast Ranges 152 Comment
  CAS-BOT-BC180303  Corylus cornuta subsp. californica Joseph P. Tracy 1949-8-11 18486 Humboldt near Snow Camp (1 1/2 mi SE) 1341 Comment
  CAS-BOT-BC180314  Corylus cornuta subsp. californica L. B. Kildale 1927-7-10 3734 Humboldt Gans Prairie - Bold Hills road Comment
  HSC58352  Corylus cornuta subsp. californica Overton, Butler 1979-8-2 12690 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC722135  Cotula coronopifolia C. L. Hitchcock and J. S. Martin 1939-7-14 5434 Humboldt On cliff above pier Shelter Cove Comment
  UC492243  Crassula connata var. subsimplex Joseph P. Tracy 1931-3-26 9293 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R., Alton 30 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
  HSC72961  Crepis pleurocarpa Gail Newton 1980-7-14 1481 Humboldt Near Last Chance Ridge. 1219 Comment
  OBI78670  Crepis tectorum Bresa Martin 2013-11-11 2 Humboldt At Humboldt State University on small walking path above bridge that led from Cypress Apartments. Twenty yards behind the track and football field. 30 Comment
  HSC57183  Cryptantha affinis Griswold, Butler 1979-7-10 6312 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC175773  Cryptantha intermedia Joseph P. Tracy 1911-7-6 3335 Humboldt road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  HSC33754  Cryptantha leiocarpa A. Montalvo 1975-5-24 284 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  BLMAR607  Cryptantha leiocarpa Jennifer Wheeler 2011-4-1 607 Humboldt King range, growing throughout the Mattole Beach duns 0 Comment
  UC525602  Cryptantha milobakeri Joseph P. Tracy 1927-5-15 8050 Humboldt w of Hoopa Valley; North Coast Ranges, Supply Creek 304 Comment
  HSC3587  Cryptantha torreyana H. E. Parks, J. P. Tracy 1934-6-27 11058 Humboldt Grouse Mtn. Comment
  UC1239649  Cryptantha torreyana Harold E. Parks and Joseph P. Tracy 1934-6-27 11058 Humboldt Grouse Mt. 1432 Comment
  UC175791  Cryptantha torreyana Joseph P. Tracy 1909-8-1 3071 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1197869  Cuscuta subinclusa Doris Kildale 1926-9-6 Humboldt Lasseck Peak Comment
  HSC3639  Cynoglossum grande Paul Shields Apr 1955 Humboldt Kneeland Comment
  HSC45646  Cynoglossum grande Diane L. Reed 1978-5-27 135 Humboldt Horse Mtn., Titlow Hill Rd., 2.7 mi. from Hwy. 299 Comment
  UC1222259  Cynoglossum occidentale Joseph P. Tracy 1949-8-26 18508 Humboldt 6 mi. n.e. Hawkin's Bar (Happy Camp Mt.); Trinity Summit Range, Happy Camp Mt. 1280 Comment
  BLMAR320  Cynosurus cristatus Jennifer Anthony-Wheeler 2002-8-9 320 Humboldt Lost Coast Headland, Growing near pond in lost Coast headlands 121 Comment
  UCD60132  Cynosurus cristatus R. Tofsrud 1949-7-1 s. n. Humboldt South edge of Scotia. Comment
  HSC45219  Cynosurus echinatus M. Alcasas 1978-6-3 126 Humboldt Titlow Hill Rd., 0.3 mi. from Hwy. 299 869 Comment
  POM364982  Cynosurus echinatus Jacqueline Greenleaf 1980-8-5 288 Humboldt Dairy Creek 294 Comment
  UCD60170  Cynosurus echinatus P. B. Kennedy 1929-6-14 s.n. Humboldt Arcata, Range of California Barrel Co. Comment
  HSC37996  Cyperus eragrostis Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  SEINET200970  Cyperus melanostachyus Joseph P. Tracy 1920-8-15 5383 Humboldt Klamath River at Bluff Creek. 152 Comment
  UC1103651  Cyperus squarrosus Joseph P. Tracy 1935-5-30 13918 Humboldt Trinity R. Valley at Willow Creek (in old Clover Flat Mine workings); Trinity R. Valley, Clover Flat Mine 152 Comment
  CAS-BOT-BC133727  Cypripedium californicum E. P. Chase 1933-7-1 2008 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC70542  Cystopteris fragilis Ira L. Wiggins 1957-6-21 14138 Humboldt E side of road, 1 mi. S of Garberville Comment
  UC42487  Cystopteris fragilis C. C. Marshall 1888-1 Humboldt Comment
  HSC14674  Cytisus scoparius W. R. Brigham 1962-5-20 20 Humboldt End of old Hwy. 101, N of Big Lagoon Rd. Comment
  HSC40373  Cytisus scoparius Linda M. Barker 1976-3-11 1322 Humboldt 3 mi. W of Arcata Comment
  CAS-BOT-BC189764  Dactylis glomerata F. W. Peirson 1933-7-12 3655 Humboldt 5 miles north of Orick. Comment
  RSA728077  Dactylis glomerata Gary D. Wallace 1979-6-24 1859 Humboldt Brush Mountain Lookout, SW of the town of Willow Creek; near Honker Timber scale (?), near lookout. 1216 Comment
  CAS-BOT-BC189743  Danthonia californica Joseph P. Tracy 1935-7-23 14137 Humboldt Trinity Summit. Corral Prairie. 1584 Comment
  HSC102635  Danthonia californica M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1620 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC1967  Danthonia californica William J. Ferlatte, B. D. Rogers 1966-6-15 2108 Humboldt Larabee Valley 762 Comment
  UCD60489  Danthonia californica Joseph P. Tracy 1938-6-17 15951 Humboldt Cape Mendocino. 152 Comment
  RSA10086  Danthonia californica var. americana Joseph P. Tracy 1931-5-31 9548 Humboldt Kneeland Prairie 793 Comment
  UCD60503  Danthonia californica var. americana R. Tofsrud 1947-6-27 s.n. Humboldt About halfway between Yager and Kneeland on county road. Comment
  UCD60514  Danthonia californica var. americana R. Tofsrud 1947-6-27 s.n. Humboldt About halfway between Yager and Kneeland on county road. Comment
  CAS-BOT-BC194415  Danthonia intermedia Joseph P. Tracy 1935-7-25 14231 Humboldt Open places at McKay Prairie, Trinity Summit 1584 Comment
  CAS-BOT-BC194370  Danthonia unispicata Joseph P. Tracy 1926-6-20 7611 Humboldt Horse Mountain 1402 Comment
  RSA10088  Danthonia unispicata Joseph P. Tracy 1926-6-20 7611 Humboldt Horse Mountain 1402 Comment
  CAS-BOT-BC420363  Darmera peltata Doris K. Kildale 1926-3-28 1679 Humboldt Redwood Creek at Berry's 289 Comment
  HSC20254  Darmera peltata Paul Shields May 1955 Humboldt 4 mi. W of Hoopa Comment
  CAS-BOT-BC420356  Darmera peltata L. B. Kildale 1930-9-9 10409 Humboldt Redwood Creek at Berry's 289 Comment
  UC204116  Darmera peltata Joseph P. Tracy 1918-5-27 4934 Humboldt foot of Grouse Mt. (Redwood Creek); Northern Coast Ranges 457 Comment
  UC585991  Datura stramonium Joseph P. Tracy 1924-8-31 6837 Humboldt Klamath River at Bluff Creek; Klamath River at Bluff Creek 91 Comment
  HSC38880  Daucus carota J. P. Smith 1971-10-9 4991 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  JEPS14239  Daucus pusillus Joseph P. Tracy 1936-6-8 14870 Humboldt Trinidad Comment
  UC154247  Daucus pusillus Joseph P. Tracy July, 1908 2795 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt & Trinity Co.'s); Northern Coast Ranges, Humboldt & Trinity Co.'s 914 Comment
  UC1196326  Delphinium Joseph P. Tracy 1946-6-15 17564 Humboldt foothills of Horse Mountain 1066 Comment
  SEINET12104065  Delphinium decorum F. H. Utech 1988-5-23 88 -283 Humboldt along CA 36 from Bridgeville enroute to Dinsmore 800 Comment
  HSC36240  Delphinium decorum subsp. tracyi John Rehling 1975-5-12 71 Humboldt Bald Hills Area, 2 mi. up Williams Ridge Rd. Comment
  UCD95863  Delphinium hesperium Joseph P. Tracy 1948-6-20 18070 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC1225748  Delphinium hesperium subsp. hesperium Joseph P. Tracy 1948-6-20 18070 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC9954  Delphinium nudicaule Doris K. Kildale 1928-6-24 5288 Humboldt Horse Mountain 853 Comment
  UC503046  Delphinium nudicaule Joseph P. Tracy 1927-5-30 8084 Humboldt near Briceland; Northern Coast Ranges 243 Comment
  CHSC35593  Delphinium nuttallianum Thomas W. Nelson 1980-6-10 5443 Humboldt Six Rivers National Forest. Along branch road off Swayback Ridge Road ca. 1/2 mile east of junction. 1371 Comment
  HSC35357  Delphinium trolliifolium A. M. Montalvo, J. D. Ackerman 1975-6-22 490 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36. Comment
  UC1222575  Delphinium trolliifolium Joseph P. Tracy 1951-6-26 19559 Humboldt halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road) Twin Lakes Comment
  CAS-BOT-BC121972  Delphinium trolliifolium Lester Rowntree 1938-6-4 s.n. Humboldt Stone Lagoon, near Orick Comment
  UC1196338  Delphinium trolliifolium Joseph P. Tracy 1933-5-20 12269 Humboldt hillsides Northern Coast Ranges, Bear River Ridge 609 Comment
  UCD61253  Deschampsia cespitosa Malcolm A. Nobs; S. Galen Smith 1949-8-3 1167 Humboldt 1 mile south of Fields Landing, Eel River Valley. Comment
  UC637044  Deschampsia cespitosa subsp. beringensis Edward Lee 1934-8-17 1153 Humboldt 35 mi. n. Eureka (e. shore of Big Lagoon); Big Lagoon 3 Comment
Read comments
Sep 27 2007
  UC552695  Deschampsia cespitosa subsp. cespitosa Joseph P. Tracy 1934-7-20 13456 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  CHSC102216  Deschampsia danthonioides Peter F. Zika 2009-6-15 24488 Humboldt North Coast; near Hatchery Road, S of town of Blue Lake. 20 Comment
  UC1103219  Deschampsia danthonioides Joseph P. Tracy 1914-5-30 4477 Humboldt Alton Northern Coast Ranges, Alton 30 Comment
  HSC26779  Deschampsia elongata Thomas W. Nelson 1971-5-31 463 Humboldt 915 Comment
  UC38482  Deschampsia elongata Harley P. Chandler May, 1901 1175 b Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 54 Comment
  UCD63575  Deschampsia elongata Harley P. Chandler 1901-6-1 1331 Humboldt Hupa Indian Reservation. 304 Comment
  UCR52469  Deschampsia elongata J. O. Sawyer, R. J. Cole 1977-7-3 3019 Humboldt Environs of Mud Sprng. Big Hill Road (F.S. 8N01) 1246 Comment
  BLMAR696  Dicentra formosa Jennifer Wheeler 2011-5-23 696 Humboldt Lacks Creek, Bair Rd. about one mile from Hwy. 300 426 Comment
  JEPS91306  Dicentra formosa subsp. formosa Dean W. Taylor 1971-5-2 1065 Humboldt Comment
  UC35008  Dicentra uniflora W. C. Blasdale 1896-1 Humboldt Top of South Fork Mountain Comment
  POM126098  Dichanthelium acuminatum var. fasciculatum Joseph P. Tracy 1900-8-26 925 Humboldt At Eureka 0 Comment
  HSC86307  Dichelostemma capitatum subsp. capitatum K. Berg, B. Bonning 1983-5-21 493 Humboldt 0.5 mi. up Titlow Hill Rd. from Berry Summit 854 Comment
  SBBG11069  Dichelostemma ida-maia D. E. Breedlove 1961-7-4 649 Humboldt 10.9 mi W of Willow Crk on US Hwy 299 822 Comment
  SEINET10872226  Dichelostemma ida-maia Mary Merello 1993-6-19 Merello 662 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  UC1198180  Dichelostemma ida-maia Joseph P. Tracy 1948-9-5 18187 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  JEPS5682  Dichelostemma ida-maia W. L. Jepson 1902-6 2132 Humboldt Three Creeks to Redwood Creek (near summit of grade) Comment
  SEINET8476733  Dichelostemma ida-maia M. J. Williams 1969-5-23 s.n. Humboldt Bald Hills. 152 Comment
  HSC38524  Dichelostemma multiflorum D. E. Anderson, J. P. Smith 1971-6-18 - 1072 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  SEINET10533938  Dichelostemma pulchellum Botany 1985-4-20 BOTANY s.n. Humboldt T34m,r6e,sec.14. Burnt ranch campground off hwy 299. Open sunny site near black Oak-douglas fir habitat 433 Comment
  SBBG26842  Diplacus kelloggii L. Constance, R. C. Rollins 1941-5-12 Humboldt bluffs at jct of Klamath and Salmon Rivers, 1 mi S of Somes Bar 152 Comment
  CAS-BOT-BC153236  Diplacus kelloggii Lincoln Constance; Reed C. Rollins 1942-5-12 2894 Humboldt Bluffs at junction of Klamath and Salmon rivers, 1 mile south of Somes Bar 152 Comment
  HSC49807  Dipsacus fullonum R. York 1979-5-23 314 Humboldt Along shore of Humboldt Bay Comment
  HSC45111  Distichlis spicata R. Sutherland 1978-4-25 7 .25478 Humboldt 9 Comment
  HSC93509  Distichlis spicata Gordon Leppig, Sylvia Leppig 1998-9-17 1101 Humboldt Arcata Marsh and Wildlife Sanctuary, W of railroad trestle. Comment
  HSC70230  Dodecatheon hendersonii M. A. Baker 1980-6-8 1892 Humboldt Near Buck Flat. 1554 Comment
  HSC85760  Dodecatheon hendersonii R. Earing, C. Cavanaugh, C. Collins 1987-3-6 3 Humboldt Gray's Falls Campground, approx. 10 mi. E of Willow Creek on Hwy. 299, along the Trinity River. 244 Comment
  JEPS9492  Dodecatheon hendersonii Joseph P. Tracy 1927-5-15 8061 Humboldt near summit on road w from Hoopa to Bair's; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  UC602557  Downingia cuspidata Joseph P. Tracy 1935-5-25 13843 Humboldt Fort Seward 106 Comment
  UC602535  Downingia elegans Joseph P. Tracy 1923-6-20 6339 Humboldt Miranda 121 Comment
  POM47623  Downingia yina J. B. Feudge 1923-7-29 108 Humboldt Rohnerville. 15 Comment
  UC1198846  Drosera rotundifolia Joseph P. Tracy Jul 16 1930-Jul 19 1930 9002 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC157793  Drymocallis lactea var. lactea Doris Kildale Gillespie 1931-6-7 10628 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  HSC32284  Drymocallis rhomboidea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5618 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  JEPS35138  Dryopteris expansa Milo S. Baker 1923-7-16 20 Humboldt 4 mi se Eureka Comment
  HSC97541  Dysphania ambrosioides Ivy Watson 2008-9-17 15 Humboldt Mad River Park on W End Rd., near pumping station 8 Comment
  HSC98715  Dysphania botrys Cara Witte 2007-8-1 617 Humboldt Friday Ridge Road (Forest Service Road 6N08). 1/4 mile east of intersection with Friday Camp. 1297 Comment
  HSC9660  Echinochloa crus-galli H. E. Parks 24213 Humboldt Trinidad, Spruce Cove. Comment
  UC1103648  Eleocharis acicularis Joseph P. Tracy 1935-5-30 13917 Humboldt old Clover Flat Mine Trinity River Valley 152 Comment
  HSC7338  Eleocharis erythropoda E. Hunt 1949-5-17 17 Humboldt S Fork Mtn. Comment
  CAS-BOT-BC113113  Eleocharis obtusa Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans region Comment
  UC666880  Eleocharis pachycarpa H. E. Parks and Joseph P. Tracy 1931-6-7 9569 Humboldt Trinidad 60 Comment
  HSC99108  Elymus elymoides var. elymoides Cara Witte 2007-6-27 373 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 2/10 mile from intersection with 4N32B. 1413 Comment
  HSC58658  Elymus glaucus G. L. Clifton 1979-7-31 11862 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC73723  Elymus glaucus M. A. Baker 1980-7-15 2959 Humboldt Near Whiting Ridge. 1341 Comment
  HSC9716  Elymus glaucus D. C. Juve 1964-5-16 44 Humboldt Campbell Creek Ranger Station, Camp Tish-Tang, Hwy 96. Comment
  UC184693  Elymus glaucus Joseph P. Tracy 1912-7-26 3829 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  CAS-BOT-BC203473  Elymus glaucus subsp. glaucus Joseph P. Tracy 1934-7-9 13336 Humboldt Near Harris 762 Comment
  HSC58601  Elymus glaucus subsp. glaucus G. L. Clifton, Griswold 1979-7-25 10826 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC9745  Elymus glaucus subsp. glaucus D. E. Anderson 1962-7-10 2249 Humboldt Luffenholtz Beach, about 2 mi. S of Trinidad along old Hwy. 101 Comment
  UC1103475  Elymus glaucus subsp. virescens Joseph P. Tracy 1938-6-17 15959 Humboldt s point of Cape (near ocean shore); Cape Mendocino 3 Comment
  UC189196  Elymus multisetus Joseph P. Tracy 1912-7-26 3839 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC552764  Elymus multisetus H. E. Parks and Joseph P. Tracy 1934-6-27 11048 Humboldt Horse Mt. Northern Coast Ranges 1371 Comment
  UC717990  Elymus trachycaulus David D. Keck 1944-7-11 5491 Humboldt 3 mi ne Capetown 152 Comment
  HSC59502  Empetrum nigrum M. A. Erickson 1979-5-29 307 Humboldt Megwill Point on Elkhead, N of College Cove Comment
  SD38379  Epilobium angustifolium Edith A. Purer 1932-7-27 4148 Humboldt Comment
  JEPS31511  Epilobium campestre Joseph P. Tracy 1938-7-5 16004 Humboldt open flat by old Strong's District School House (in dried pond bed, 5 mi e of town); Carlotta 45 Comment
  UC505123  Epilobium campestre Joseph P. Tracy 1930-6-15 8743 Humboldt near Bosworth; Larrabee Creek 457 Comment
  CAS-BOT-BC166893  Epilobium canum subsp. latifolium Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC76188  Epilobium ciliatum subsp. ciliatum Overton, Butler 1979-7-24 9781 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  UC198608  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1916-8-20 4753 Humboldt Eureka Northern Coast Ranges 0 Comment
  JEPS39330  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1916-9-5 4768 Humboldt 4 mi above river mouth (i.e., near Weott); Northern Coast Ranges, South Fork of Eel River 60 Comment
  UC583078  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-10 14340 Humboldt 15 mi e Bridgeville; Little Van Duzen River Comment
  JEPS31496  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1935-7-25 14228 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC549762  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1932-7-16 10633 Humboldt swamp near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  UC1198494  Epilobium densiflorum Joseph P. Tracy 1942-6-15 17148 Humboldt along ditch in field Garberville 152 Comment
  UC505117  Epilobium foliosum Joseph P. Tracy 1928-5-6 8430 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  POM247176  Epilobium hornemannii subsp. hornemannii Joseph P. Tracy 1935-7-24 14183 Humboldt Trinity Summit, near ranger station 1829 Comment
  HSC45063  Epilobium minutum R. Sutherland 1978-4-23 17 .23478 Humboldt Kinsey Ridge near head 732 Comment
  HSC71824  Epilobium minutum Thomas W. Nelson, Jane P. Nelson 1980-6-27 5938 Humboldt Along old trail to pond above Alder Spring, 0.5 mi. N of campground 1555 Comment
  JEPS39325 Image available Epilobium oreganum Chesnut and Drew 1888-8-1 Humboldt near Grouse Creek Comment
Read comments
Jun 21 2008
  SEINET12194289  Epilobium watsonii var. franciscanum F. H. Utech 1986-1 86 -411 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  HSC39177  Epipactis gigantea D. E. Anderson, J. P. Smith 1971-6-28 1224 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  CAS-BOT-BC56970  Equisetum arvense Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  HSC93222  Equisetum telmateia subsp. braunii Gordon Leppig 1998-3-9 714 Humboldt Arcata, West End Rd., 0.3 mi. W of Ericson Way 30 Comment
  CAS-BOT-BC204430  Eragrostis cilianensis Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  POM174069  Erechtites glomeratus Joseph P. Tracy 1918-9-1 5095 Humboldt Newells Camp, around Humboldt Bay. On old Kneeland Prairie Road. 457 Comment
Read comments
Jun 10 2012
  RSA20844  Erechtites glomeratus C. B. Wolf 1937-6-18 8884 Humboldt Table Bluff between Humboldt Bay and Eel River 30 Comment
  POM272117  Erechtites minimus Lyman Benson 1928-7-12 250 Humboldt Weott Ranger Station; Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  HSC54009  Eremogone congesta var. suffrutescens Griswold, Butler 1979-7-10 7134 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  HSC57889  Eremogone congesta var. suffrutescens Overton, Butler 1979-7-31 11446 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CDA42399  Erica lusitanica R. Robison 2014-5-5 s.n. Humboldt Trinidad State Beach, near Ewing Street access, across the street from planted yards. 0 Comment
  POM161486  Ericameria greenei Joseph P. Tracy 1919-9-22 5273 Humboldt Trinity Summit 1890 Comment
  HSC97978  Erigeron aliceae Cara Witte 2007-7-8 449 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  RSA44411  Erigeron annuus H. M. Pollard 1947-8-21 s.n. Humboldt roadside between Orleans and Boyse Creek Comment
  UC1199409  Erigeron biolettii Joseph P. Tracy 1933-9-9 13076 Humboldt along river near Garberville; South Fork Eel River 152 Comment
  JEPS11982  Erigeron foliosus var. confinis Rimo Bacigalupi with G. T. Robbins 1954-6-28 4653 Humboldt 4.6 mi s Weitchpec, Hoopa Valley Indian Reservation (between Hoopa Valley and Weitchpec, along highway, high above Trinity River); Trinity River 167 Comment
  CAS-BOT-BC308076  Erigeron glaucus J. P. Tracy 1900-7-4 888 Humboldt Samoa, opp. Eureka Comment
  CAS-BOT-BC214587  Erigeron philadelphicus L. R. Abrams 1922-6-25 8241 Humboldt 2 mi south of Fortuna Comment
  JEPS41380  Erigeron philadelphicus var. philadelphicus Lincoln Constance 1934-5-26 685 Humboldt s end Dyerville Bridge; South Fork Eel River 45 Comment
  UC1223011  Erigeron robustior Joseph P. Tracy 1942-7-4 17371 Humboldt 2 mi w McClellan House (at Camp Desparation near the old Sweany place); McClellan Mountain 609 Comment
  UC169013  Eriodictyon californicum Harley P. Chandler June, 1901 1352 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC562607  Eriodictyon californicum Joseph P. Tracy 1923-6-19 6299 Humboldt e Kings Peak (Wilder Ridge); e of Kings Peak, Wilder Ridge 762 Comment
  HSC26237  Eriogonum latifolium J. P. Smith 1971-10-6 4979 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC35859  Eriogonum latifolium Thomas W. Nelson, James Nelson 1975-8-5 2136 Humboldt Along south spit of Humboldt Bay ca. 1 mile N. of Table Bluff Comment
  LA206934  Eriogonum latifolium Carl Epling; Mrs. Epling 1935-8-15 sn Humboldt Arcata Spit Comment
  CAS-BOT-BC259164  Eriogonum latifolium Joseph P. Tracy 1938-7-15 16062 Humboldt Near bay shore at Bucksport, Eureka 6 Comment
  HSC17297  Eriogonum latifolium P. W. Shields 1955-9-17 Humboldt 0.5 mi. S of Mad River Comment
  POM319175  Eriogonum latifolium Patricia Wilder 1968-8-21 4400 Humboldt Northern coastal arm of Humboldt Bay, ca. 2 miles SW of Samoa. Humboldt Bay drainage area. 8 Comment
  UC1222342  Eriogonum latifolium Joseph P. Tracy June 1950 18762 Humboldt near Petrolia (roadside, e slope of Domingo Hill, between town and Ocean); Domingo Hill Comment
  UC672904  Eriogonum nudum var. nudum Joseph P. Tracy 1932-7-20 10728 Humboldt open places at Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  JEPS56635  Eriogonum nudum var. nudum Lincoln Constance 1934-5-24 626 Humboldt s slope of Lower Look Prairie South Fork Eel River, Bull Creek Region, Lower Look Prairie 121 Comment
  RSA178577  Eriogonum nudum var. nudum Joseph P. Tracy 1950-06 18762 Humboldt At Domingo Hill (east slope from the summit). Near Petrolia; hills between town and ocean Comment
  CAS-BOT-BC261727  Eriogonum nudum var. oblongifolium Harley P. Chandler 1901-6-1 1442 Humboldt Klamath River 304 Comment
  CDA22632  Eriogonum nudum var. oblongifolium T. R. Haig 1960-6-19 Humboldt Kneeland School. 0 Comment
  POM165553  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1918-7-6 5044 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  CAS-BOT-BC269865  Eriogonum nudum var. pubiflorum J. H. Thomas 1949-6-13 926 Humboldt Klamath River Valley between Weitchpec and Hoopa Comment
  HSC40826  Eriogonum strictum var. greenei Thomas W. Nelson, James Nelson 1976-7-26 3041 Humboldt Middle pk. of Mt. Lassic group 1738 Comment
  HSC99077  Eriogonum umbellatum var. goodmanii Cara Witte 2007-7-27 607 Humboldt Grouse Mountain area. Intersection of Forest Service Roads 4N32 and 4N32E. 1485 Comment
  HSC43081  Eriogonum umbellatum var. nelsoniorum Brad Klipfel 1973-7-31 261 Humboldt N Trinity Mtn. 1860 Comment
  HSC74176  Eriogonum umbellatum var. stellatum M. A. Baker 1980-7-23 3149 Humboldt Near Orleans Mtn. 1859 Comment
  HSC73935  Eriophyllum lanatum Gail Newton 1980-6-28 680 Humboldt Near Mad River Butte. 1536 Comment
  OBI36670  Eriophyllum lanatum David J. Keil 1983-7-2 17314 Humboldt Ca. 4 mi SE of SR 299 along Titlow Hill rd below Horse Mtn Summit Rd Comment
  HSC44132  Eriophyllum lanatum var. achilleoides Thomas W. Nelson, Jane P. Nelson 1977-7-4 3586 Humboldt Along W side of road N of Alder Springs, head of N Fork of Conley Creek 1280 Comment
  POM265903  Eriophyllum lanatum var. achilleoides Lincoln Constance, Reed C. Rollins 1942-5-12 2886 Humboldt Mouth of Bluff Creek, 6 miles NE of Weitchpec. 152 Comment
  CAS-BOT-BC301183  Eriophyllum lanatum var. arachnoideum Frank W. Peirson 1926-7-12 7029 Humboldt West slope Coast Range back of Orick Comment
  UC302292  Eriophyllum lanatum var. arachnoideum Joseph P. Tracy 1926-6-18 7607 Humboldt Humboldt Hill Northern Coast Region, around Humboldt Bay, Humboldt Hill 152 Comment
  HSC96252  Eriophyllum lanatum var. grandiflorum M. Lindquist, C. Riley 2005-6-8 4 Humboldt 1.7 mi. S of Hwy. 299 on Titlow Hill Rd. 973 Comment
  JEPS34624  Eriophyllum lanatum var. grandiflorum W. L. Jepson 1934-5-8 16722 Humboldt Benbow South Fork Eel River, Benbow Comment
  UC165896  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1911-7-6 3366 1/2 Humboldt hillslopes at w side of river near Willow Creek; Northern Coast Ranges, Trinity River 304 Comment
  HSC44347  Eriophyllum lanatum var. lanceolatum Brad Klipfel 1975-6-17 688 Humboldt Horse Mtn. Comment
  HSC58172  Erysimum perenne G. L. Clifton, Terry Griswold 1979-8-2 12248 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  CAS-BOT-BC383042  Erythranthe grandis David B. Lowry 2005-5-14 BSR Humboldt Along Blue Slide Road, just north of the intersection with Bluff road 17 Comment
  UC1197647  Erythronium californicum Joseph P. Tracy 1941-4-8 16848 Humboldt serpentine formation along Trinity Hwy Willow Creek Canyon 609 Comment
  UC13769  Erythronium grandiflorum W. C. Blasdale 1896-6-9 Humboldt top S. Fork Mountain Comment
  HSC48528  Erythronium grandiflorum subsp. grandiflorum Mark Flippo 1978-5-21 60 Humboldt USFS Rd. 8N20 Comment
  HSC99352  Erythronium oregonum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-21 1 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC15502  Erythronium revolutum Paul Shields May 1955 Humboldt Kneeland Comment
  JEPS500  Erythronium revolutum Joseph P. Tracy 1927-5-15 8064 Humboldt near summit on road from Hoopa w to Bair's (at head of Pine Creek); Hoopa Mountain, Pine Creek 1066 Comment
  JEPS61876  Erythronium revolutum Joseph P. Tracy 1918-5-1 4896 Humboldt Ashfield Butte Northern Coast Ranges, Kneeland Prairie 762 Comment
  JEPS88924  Erythronium revolutum Harley P. Chandler Jun 1901 1279 Humboldt Hupa Indian Reservation 1066 Comment
  UC162692  Erythronium revolutum Joseph P. Tracy 1911-5-7 3183 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC3620  Erythronium revolutum C. C. Marshall 1888-1 Humboldt Comment
  UC666963  Erythronium revolutum Joseph P. Tracy 1927-5-15 8064 Humboldt woods at head Pine Creek; Hoopa Mountain 1066 Comment
  HSC104344  Erythronium revolutum James Regan, Humboldt Redwood Co., LLC 2007-5-9 6 Humboldt Kneeland 854 Comment
  HSC16768  Eschscholzia californica William J. Ferlatte 1963-4-28 24 Humboldt Near 12th and B St., Arcata Comment
  UC146086  Eschscholzia californica Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  HSC26901  Eschscholzia californica Thomas W. Nelson 1973-7-27 1103 Humboldt SW of the airstrip at Kneeland Comment
  HSC98911  Eschscholzia californica Cara Witte 2007-7-9 465 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  HSC58800  Eucephalus ledophyllus G. L. Clifton, Griswold 1979-7-31 11593 Humboldt Near Trinity Summit Guard Station, close to Hoopa 1884 Comment
  JEPS20486  Euchiton gymnocephalus Joseph P. Tracy 1936-5-29 14829 Humboldt 2 mi ne Orick (on Bold Hilla Road); Bold Hills Road 152 Comment
  UC1199359  Euchiton gymnocephalus Joseph P. Tracy 1938-6-15 15936 Humboldt vicinity Carlotta 30 Comment
  POM160838  Euonymus occidentalis H. E. Parks, Joseph P. Tracy 1925-6-14 7123 Humboldt Kneeland Prairie road. 457 Comment
  POM47094  Euonymus occidentalis J. B. Feudge 1923-7-25 86 Humboldt Fortuna 23 Comment
  HSC102197  Euonymus occidentalis var. occidentalis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1111 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  HSC98803  Euonymus occidentalis var. occidentalis Cara Witte 2008-7-30 966 Humboldt Forest Service Road 5N04. 1/4 mile east of intersection with Forest Service Road 4N32. 1514 Comment
  HSC98864  Euphorbia crenulata Cara Witte 2008-8-5 992 Humboldt Forest Service Road 4N06. 1/4 mile east of intersection with National Forest 1. 1233 Comment
  UC502958  Euphorbia crenulata Joseph P. Tracy 1929-4-14 8540 Humboldt Phillipsville Northern Coast Ranges (slopes and groves facing South Fork of Eel River) 121 Comment
  HSC28197  Euphorbia helioscopia Thomas W. Nelson 1973-4-25 799 Humboldt On H.S.U. campus, beside Forestry Dept. Greenhouse. Comment
  UC1198977  Euphorbia spathulata Joseph P. Tracy 1930-6-15 8761 Humboldt Dobbyn Creek 152 Comment
  UC302982  Euphorbia spathulata Joseph P. Tracy 1926-5-9 7455 Humboldt near Bridgeville; Northern Coast Ranges 762 Comment
  UC502956  Euphorbia spathulata Joseph P. Tracy 1929-5-5 8578 Humboldt Miranda Northern Coast Ranges, South Fork of Eel River (slopes and groves along South Fork of Eel River) 121 Comment
  HSC35991  Eurybia radulina Thomas W. Nelson, James Nelson 1975-9-1 2189 Humboldt High Rock State Park Comment
  HSC31183  Festuca californica D. E. Anderson 1972-6-20 5752 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC9852  Festuca californica D. C. Juve 1964-5-16 36 Humboldt Campbell Cr. Ranger Station. Hwy. 96. Hillside above Trinity River Comment
  UC187110  Festuca elmeri Joseph P. Tracy 1908-6 2741 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UCD65925  Festuca elmeri Al Murphy 1949-6-1 Humboldt Fort Baker. Comment
  UCR137175  Festuca occidentalis Victor Duran 1933-5-11 3410 Humboldt Van Duzen River, near Bridgeville 197 Comment
  UCD66284  Festuca roemeri Collector Unknown 1951-6-18 Humboldt Collected at Snail Ridge near Hydesville. Comment
  HSC9989  Festuca rubra R. H. Berg 1963-4-30 57 Humboldt 1 mi. N of Arcata, on Hwy. 101 Comment
  RSA152482  Festuca rubra Joseph P. Tracy 1950-6-17 18838 Humboldt At Eureka. Comment
  UC38554  Festuca rubra Schmidt Humboldt Humboldt Bay Comment
  UCD66383  Festuca rubra Malcolm A. Nobs; S. Galen Smith 1949-8-3 1171 Humboldt Around Fields Landing. Comment
  CAS-BOT-BC282516  Festuca subbiflora W. R. Dudley 1899-6-20 s.n. Humboldt Bull Creek and Eel River Comment
  HSC36257  Foeniculum vulgare John Rehling 1974-8-3 17 Humboldt Growing along side of old Hwy 299 in disturbed area Comment
  CAS-BOT-BC453520  Fragaria chiloensis David D. Keck; J. Clausen 1935-6-16 3390 Humboldt Mouth of Little River Comment
  CAS-BOT-BC453521  Fragaria chiloensis Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  POM275019  Fragaria chiloensis Lyman D. Benson 1928-7-10 450 Humboldt Clam Beach, Trinidad. 9 Comment
  HSC62777  Fragaria chiloensis M. Dean Griswold Jr. 1979-4-28 27 Humboldt N of NE boundary of Big Lagoon County Park 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
  CAS-BOT-BC457925  Fragaria vesca subsp. californica Doris K. Kildale 1927-3-24 2947 a Humboldt Fleener Creek, Coastal Bluff. Comment
  UCSB24343  Frangula californica Constance, Lincoln 1934-6-13 Humboldt East bank of south fork Eel River, North Dyerville Flat, just below Redwood Highway. Comment
  CAS-BOT-BC52737  Frangula californica subsp. californica Carl B. Wolf 1927-8-30 1226 Humboldt 2 mi. s. of Petrolia on the Matole River, near point where road crosses river. Comment
  HSC12227  Frangula purshiana Gary J. Stebbins 1970-4-19 71 Humboldt Along rd. to Fieldbrook 2.7 mi N of Hwy. 299 Comment
  HSC18411  Frangula purshiana L. D. Napier 1962-5-19 15 Humboldt 1 mi. E of Arcata on Fickle Hill 168 Comment
  HSC89760  Frangula purshiana M. Roantree 1985-5-30 73 Humboldt E side of Trinidad Head along dirt road Comment
  UC249521  Fraxinus latifolia Joseph P. Tracy 1922-5-29 6060 Humboldt South Yager Creek Valley Northern Coast Ranges 762 Comment
  HSC103299  Fritillaria affinis Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-27 3008 Humboldt Six Rivers National Forest; ~ 0.2 mi. south-southeast of Cold Spring Camp; ~ 3.3 aerial mi. south-southeast of Horse Mtn. Radio Tower. 1416 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
  SEINET200745  Fritillaria lanceolata Joseph P. Tracy 1940-5-17 16549 Humboldt McClellan Mountain. 762 Comment
  UC1197630  Fritillaria purdyi Joseph P. Tracy 1926-4-3 7394 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC102052  Galium aparine M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 957 Humboldt Forest edge surrounding Patterson Meadows 1566 Comment
  HSC57208  Galium aparine Griswold, Butler 1979-7-12 7186 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC416655  Galium aparine Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5403 Humboldt Hubbard's Station North Coast Ranges Comment
  UC168951  Galium aparine Joseph P. Tracy 1909-5-30 2981 Humboldt Eureka Northern Coast Region 0 Comment
  HSC74746  Galium bolanderi Gail Newton 1981-8-7 2430 Humboldt Near Bug Creek Butte 1244 Comment
  UC602510  Galium bolanderi Joseph P. Tracy 1935-7-29 14339 Humboldt exposed places near Ranger Station; Trinity Summit 1828 Comment
  HSC97949  Galium bolanderi Cara Witte 2007-6-26 352 Humboldt Horse Mountain Botanical Area. Junction of 6N36 and 6N36A. 1388 Comment
  JEPS6692  Galium californicum subsp. californicum Joseph P. Tracy 1927-5-30 8085 Humboldt between Briceland and Redway 182 Comment
  JEPS6513  Galium mollugo Harold E. Parks and Joseph P. Tracy 1937-7-16 11451 Humboldt near Trinidad; near Trinidad 60 Comment
  JEPS52828  Galium muricatum L. T. Dempster and G. L. Stebbins 1963-7-10 3859 Humboldt along creek w junction with Eel River (steep ne-facing slope); Bull Creek 60 Comment
  RSA245002  Galium nuttallii William J. Ferlatte, B. D. Rogers 1966-6-15 2092 Humboldt Near Bridgeville. Comment
  CAS-BOT-BC303397  Gamochaeta ustulata L. R. Abrams 1916-7-11 6021 Humboldt Mouth of Grizzly Creek on Van Duzon River Comment
  HSC5691  Gamochaeta ustulata Jerry Parker 1968-10-7 96 Humboldt Clam Beach Comment
  UC1118539  Gamochaeta ustulata H. L. Person 1932-7-16 33 Humboldt Highway n Trinidad; Rock Point Quadrangle Comment
  UC164849  Gamochaeta ustulata J. P. Tracy 1907-6-20 2573 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC303389  Gamochaeta ustulata Joseph P. Tracy 1936-5-29 14830 Humboldt Near Orick, on Bald Hills Rd, 2 miles NE of Orick 152 Comment
  BLMAR538  Garrya buxifolia Jennifer Wheeler 2009-6-23 538 Humboldt King range, On King Peak road Comment
  CAS-BOT-BC188534  Garrya elliptica Joseph P. Tracy 1943-6-18 17441 Humboldt Bank of Big Lagoon 6 Comment
  CAS-BOT-BC188539  Garrya elliptica Alice Eastwood 1923-8-14 12321 Humboldt Samoa Comment
  CAS-BOT-BC188545  Garrya elliptica Joseph P. Tracy 1939-3-19 16203 Humboldt Bluffy hillside; Root Grade near Blue Slide on Van Duzen River 91 Comment
  HSC12588  Garrya elliptica Gary J. Stebbins 1970-2-2 5 Humboldt Along Clam Beach lagoon rd. off McKinleyville exit with Hwy. 101 Comment
  LA40298  Garrya elliptica H. E. Parks; February 1933 - March 1933 4287 Humboldt Trinidad Comment
  RSA245037  Garrya elliptica David K. Smith 1968-10-11 7 Humboldt 3 mi S of Trinidad. Comment
  UC1196887  Garrya elliptica Joseph P. Tracy 1921-2-27 5414 Humboldt Drakes Hill; Northern Coast Region 30 Comment
  UC154056  Garrya elliptica J. P. Tracy 1900-12-22 975 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC182169  Garrya fremontii Henry M. Pollard 1946-9-1 s.n. Humboldt Near Willow Creek, Orleans region Comment
  HSC47959  Garrya fremontii Brad Klipfel 1975-5-24 650 Humboldt Horse Mtn. Comment
  OBI35859  Garrya fremontii David J. Keil 1983-7-2 17336 Humboldt Horse Mtn Summit SW of Willow Crk Comment
  UC1196893  Garrya fremontii Joseph P. Tracy 1947-7-9 17840 Humboldt Horse Mountain 1402 Comment
  UC502980  Garrya fremontii Joseph P. Tracy 1932-3-6 9773 Humboldt Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC668300  Garrya fremontii Joseph P. Tracy 1935-7-14 14062 Humboldt Horse Mountain 1432 Comment
  HSC71725  Gastridium phleoides M. A. Baker 1980-6-26 2462 Humboldt Near Sims Creek 610 Comment
  POM198468  Gastridium phleoides Le Roy Abrams 1916-7-11 6025 Humboldt Mouth of Grizzly Creek on Van Duzen River. Comment
  HSC103127  Gaultheria ovatifolia M. Mesler 2009-7-31 811 Humboldt South Fork Mtn. FS 1, 11.8 miles north of intersection with 4N12, just north of mile marker 34. 1486 Comment
  CHSC593  Gaultheria shallon Vesta Holt 1941-5-30 Humboldt Comment
  HSC31633  Gaultheria shallon Glenn McGourty 1974-4-27 19 Humboldt Along rd. 1 mi. from Capetown bridge Comment
  HSC59576  Gaultheria shallon Rick Lundquist 1979-5-23 104 Humboldt 3.4 mi. up Fickle Hill Rd. from 11th St. 274 Comment
  SEINET11993510  Gaultheria shallon F. H. Utech 1986-1 86 -393 Humboldt ca 5 mi N on Kings Peak Rd, from junction with Shelter Cove Rd, near Tolkan Recreation Area 480 Comment
  SEINET2031090 Image available Gaultheria shallon Joseph P. Tracy 1908-1 2863 Humboldt Valley of Van Duzen River; opposite Buck Mountain 762 Comment
  HSC54012  Gayophytum diffusum subsp. parviflorum Griswold, Butler 1979-7-12 7142 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC55175  Gayophytum diffusum subsp. parviflorum Gilbert Muth 1979-8-1 12176 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  UC562500  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-7-26 12919 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC562353  Gayophytum heterozygum Joseph P. Tracy 1933-8-30 13045 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC1196957  Gayophytum humile Joseph P. Tracy 1919-9-18 5234 1/2 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC1196960  Gayophytum humile Joseph P. Tracy 1930-7-23 9117 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  JEPS27604  Gayophytum humile Joseph P. Tracy 1932-7-11 10424 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC76214  Gayophytum racemosum Overton, Butler 1979-7-24 9729 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  UC495730  Genista Joseph P. Tracy 1927-7-24 8301 Humboldt Mattole Valley; Northern Coast Ranges, Mattole Valley 152 Comment
  CAS-BOT-BC217395  Gentiana affinis var. ovata L. R. Abrams 1916-7-20 6145 Humboldt Eureka Comment
  UC444818  Gentiana affinis var. ovata Charlotte M. Wilder 1912-9-15 Humboldt n Capetown (road banks); Seven Mile Hill Comment
  JEPS24351  Gentiana plurisetosa Joseph P. Tracy 1919-9-22 5276 Humboldt Trinity Summit 1828 Comment
  RSA46825  Gentiana plurisetosa Doris K. Kildale 1925-8-17 s.n. Humboldt Trinity Summit 1829 Comment
  SBBG58582  Gentiana sceptrum H. E. Parks -Jul-1931 1052 Humboldt Bishop Pine Lodge, Trinidad 76 Comment
  POM318969  Gentiana sceptrum Patricia Wilder 1968-8-21 4390 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  UCSB26680  Gentiana sceptrum Havlik, Neil 1968-8-21 Humboldt south end of Big Lagoon; north of Trinidad 1 Comment
  UC1197397  Geranium bicknellii Joseph P. Tracy 1949-8-4 18422 Humboldt Mud Springs Trinity Summit 1341 Comment
  HSC45616  Geranium carolinianum Diane L. Reed 1978-5-7 46 Humboldt Friday Ridge Road, near intersection with Hwy. 299 Comment
  UC668046  Geranium carolinianum Joseph P. Tracy 1933-7-9 12643 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1197404  Geranium dissectum Joseph P. Tracy 1911-7-5 3331 Humboldt near Mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  HSC44760  Geranium oreganum Maralyn O'Meara 1972-6-8 80 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  SEINET200730  Gilia capillaris Joseph P. Tracy 1908-7-30 2920 Humboldt Northwest slope of Buck Mtn. 1219 Comment
  CHSC31278  Gilia capitata Mark Stopher 1980-5-28 75 Humboldt Along Rte 169, 7.5 mi w of Martins Ferry Bridge. Comment
  HSC74459  Gilia capitata M. A. Baker 1980-5-18 1364 Humboldt Near Black Mtn. 792 Comment
  UC52485  Gilia capitata subsp. pacifica Joseph Burtt Davy and Walter C. Blasdale 1899-5 5561 Humboldt Alton Alton (Old river bluffs, North-Western California) Comment
  HSC97919  Githopsis specularioides Cara Witte 2007-6-19 303 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 Comment
  HSC14203  Glechoma hederacea A. H. Teshima 1963-4-28 26 Humboldt Roadside in porous soil near the Moonstone Beach area Comment
  CHSC84624  Glehnia littoralis subsp. leiocarpa L. P. Janeway 2003-7-27 7930 Humboldt North Coast. Back of beach between Dry Lagoon and Sharp Point; just below steep slope. 4 Comment
  HSC46969  Glehnia littoralis subsp. leiocarpa J. P. Smith, Thomas W. Nelson 1977-6-30 9211 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  UCD66776  Glyceria occidentalis A. A. Beetle; J. P. Tracy, G. L. Stebbins Jr. 1942-6-2 3461 Humboldt Loleta Swamp, south of Eureka. Comment
  BLMAR713  Glyceria striata Clara Sander 2005-7-13 713 Humboldt Jacoby creek, growing along trail 36 Comment
  HSC99053  Glyceria striata Cara Witte 2008-7-25 931 Humboldt Friday Ridge Road (Forest Service Road 6N08). 1.5 mile north of intersection with Forest Service Road 5N39. 1473 Comment
  UC1408980  Gnaphalium palustre Robert F. Thorne and P. Everett 1965-8-7 35227 Humboldt Samoa Peninsula 3 Comment
  UC1196436  Goodyera oblongifolia Edith and Ethel Tracy 1900-7-31 910 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach Comment
  RSA20797  Goodyera oblongifolia Carl B. Wolf 1937-8-13 9262 Humboldt North Coast Range, 12 mi. E. of Hoopa Valley on New Road toward Trinity Summit. 1677 Comment
  HSC37504  Grindelia hirsutula J. D. Ackerman 1975-8-2 613 Humboldt Hwy. 101 between Arcata and Eureka. Humboldt Bay across from Murray Field Comment
  HSC37692  Grindelia hirsutula R. Sutherland 1976-8-6 13 .6876 Humboldt Disturbed edge of county road, just W of China Creek 223 Comment
  JEPS82251  Grindelia hirsutula Roger Raiche 1983-7-19 30540 Humboldt along Mattole Road several mi w of Honeydew (2 mi e of Lighthouse Road) Comment
  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
  UC520410  Grindelia hirsutula J. A. Moore and J. A. Steyermark 1931-8-9 3686 Humboldt Eureka; salt meadows along canal Comment
  POM160899  Grindelia hirsutula var. davyi Joseph P. Tracy 1918-7-7 5038 Humboldt Near Garberville. 122 Comment
  CDA6159  Grindelia stricta var. platyphylla T. C. Fuller 1958-6-17 1719 Humboldt Maritime bluff above Oceanhouse, Cape Mendocino. 0 Comment
  HSC102027  Hackelia micrantha M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 928 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  JEPS55562  Hackelia micrantha Hilda Grinnell 1932-7-12 16 Humboldt slope below McKay Camp; South Fork Mountain Comment
  RSA47164  Hastingsia serpentinicola Doris K. Kildale 1927-7-17 3771 Humboldt Bug Creek, Chaparral Mountain Comment
  HSC57948  Helenium bigelovii G. L. Clifton, Griswold 1979-7-31 11626 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  CAS-BOT-BC306618  Helenium bigelovii Henry M. Pollard 1947-8-31 s.n. Humboldt Klamath River bar nr. Woodson's placer mine, Orleans region Comment
  JEPS109581  Helenium bolanderi Dean W. Taylor 2002-9-12 18341 Humboldt Lake Prairie, remnant of the original bog vegetation on the eastern end of the lake 1097 Comment
  UC582769  Helenium bolanderi H. E. Parks and Joseph P. Tracy 1937-7-16 15431 Humboldt Trinidad 60 Comment
  CAS-BOT-BC306873  Helenium bolanderi Ira L. Wiggins 1932-7-19 5891 Humboldt About 1 1/2 miles north of Trinidad Head Comment
  UC175986  Helenium bolanderi J. P. Tracy 1912-7-22 3792 Humboldt near Loleta 91 Comment
  JEPS35523  Helenium puberulum W. L. Jepson 1921-9-10 9458 Humboldt flat at Philipsville Philipsville Comment
  RSA255766  Hemitomes congestum Gary D. Wallace, S. Carlquist 1972-6-30 1102 Humboldt Prairie Crrek Redwoods Stl. Pk. near the coast. Comment
  UC495626  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1930-9-1 9174 Humboldt Miranda Northern Coast Ranges, South Fork of Eel River 121 Comment
  CAS-BOT-BC309987  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1932-8-21 10364 Humboldt Northern Coast Ranges. Three Cabins; on lower western foothills of Chaparral Mountain 457 Comment
  JEPS12644  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1931-6-28 9598 Humboldt lower foothills of its nw slope Buck Mountain 762 Comment
  UC1223087  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1950-6-25 18902 Humboldt 3 mi s Burr Valley 1158 Comment
  UC1223092  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1946-11-17 17664 Humboldt river bar of Eel at mouth of Van Duzen River; Eel River Comment
  UC175967  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1908-6-8 2629 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC180194  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1906-7-4 2530 Humboldt Hydesville 60 Comment
  HSC100437  Hemizonia luzulifolia Carl C. Marshall Jun 1885 71 Humboldt Hills. Comment
  RSA126141  Hemizonia tracyi Joseph P. Tracy 1923-7-4 6529 Humboldt Valley of South Yager Creek Comment
  HSC56237  Heracleum maximum Overton 1979-8-1 12321 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  UCSB25051  Heracleum maximum Keefe, Joseph 1967-7-8 Humboldt Brushy roadside, junction crannell Road and Little River Drive, north of Eureka 6 Comment
  UC1223122  Hesperevax acaulis var. robustior Joseph P. Tracy 1949-6-12 18312 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley 152 Comment
  UC1223123  Hesperevax acaulis var. robustior Joseph P. Tracy 1948-5-31 17983 Humboldt 1/2 mi ne Garberville 152 Comment
  HSC91617  Hesperocyparis macrocarpa E. Mackey 1986-12-18 Humboldt Patrick's Point State Park, near Ceremonial Rock Comment
  HSC98086  Heterocodon rariflorum Cara Witte 2007-7-11 486 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1396 Comment
  HSC99566  Heterocodon rariflorum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 231 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
  JEPS2487  Heterotheca oregona var. oregona Joseph P. Tracy 1933-10-15 13097 Humboldt Miranda South Fork of Eel River 121 Comment
  UC581756  Heterotheca oregona var. rudis Joseph P. Tracy 1930-7-27 9112 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  POM288698  Heterotheca oregona var. rudis Lyman Benson 1928-7-12 477 Humboldt Weott Ranger Station; Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  HSC70966  Heuchera micrantha Gail Newton 1980-7-15 1582 Humboldt Near Sims Mtn. 1311 Comment
  SEINET192937  Heuchera micrantha var. erubescens L. Constance, RC Rollins 1942-5-12 2883 Humboldt Mouth of Bluff Cr 6 mi NE of Weitchpec Klamath-Siskiyou Region 152 Comment
  JEPS1222  Heuchera micrantha var. macropetala Freed Hoffman 1950-7-11 4009 Humboldt 16.1 mi above and n of Klamath River Road (along road to Cedar Camp) 914 Comment
  CAS-BOT-BC312388  Hieracium albiflorum Doris K. Kildale 1927-7-17 3752 Humboldt Bug Creek 792 Comment
  HSC49962  Hieracium albiflorum Maralyn O'Meara 1974-7-11 542 Humboldt Kneeland; Barry Ridge Comment
  HSC57892  Hieracium albiflorum Overton, Butler 1979-7-31 11464 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC58325  Hieracium albiflorum Overton, Butler 1979-8-2 12622 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UCD133133  Hieracium albiflorum Linda M. Barker 1976-6-14 1591 Humboldt 3 miles west of Arcata. Comment
  UC34196  Hieracium nudicaule Harley P. Chandler 1901-6-1 1489 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  UC205670  Hierochloe occidentalis Joseph P. Tracy 1918-4-21 4882 Humboldt around Humboldt Bay (old Kneeland Road); Northern Coast Ranges 304 Comment
  UC668291  Hippuris vulgaris Joseph P. Tracy 1938-8-21 16130 Humboldt along coast in front of South End of Stone Lagoon (Dry Lagoon); Dry Lagoon 3 Comment
  HSC6594  Hirschfeldia incana P. W. Shields 1955-9-29 Humboldt 0.5 mi. S of Fernbridge Comment
  HSC10140  Holcus lanatus N. R. Waite 1965-5-21 54 Humboldt W edge of Humboldt State College Campus. Comment
  POM352401  Holcus lanatus Edith A. Purer 1932-7-30 16085 Humboldt South of Orick. Comment
  CAS-BOT-BC149906  Holodiscus discolor Alice Eastwood 1921-7-21 10651 Humboldt Carlotta Comment
  CAS-BOT-BC149908  Holodiscus discolor Clarence R. Quick 1959-7-24 59 -26 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  HSC57434  Holodiscus discolor G. L. Clifton, Griswold 1979-7-26 10223 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  CAS-BOT-BC149898  Holodiscus discolor J. H. Thomas 1949-6-14 925 Humboldt Klamath River Valley between Weitchpec and Hoopa Comment
  HSC10160  Hordeum brachyantherum L. M. Malloy 1965-5-19 41 Humboldt Arcata, between Hwy. 101 and oxydation pond Comment
  HSC70402  Hordeum marinum subsp. gussoneanum M. A. Baker 1980-6-7 1843 Humboldt Near Ammon Creek 732 Comment
  HSC10157  Hordeum murinum subsp. leporinum W. F. Nickel 1965-5-16 Humboldt 1/4 mi. E of Arcata on road to Arcata Reservoir. Comment
  CDA25952  Horkelia tridentata subsp. flavescens G. Levy, S. March 2005-6-24 15 Humboldt Northwestern California Comment
  JEPS83627  Horkelia tridentata subsp. flavescens R. Raiche 1988-5-12 80113 Humboldt 6.6 mi sw Hoopa (on Bair Rd., Supply Crk. drainage) Comment
  UC1198716  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1933-6-13 12593 Humboldt near summit (on rd w from Hoopa to Bair's); Northern Coast Ranges, Hoopa Mt. 914 Comment
  HSC96225  Horkelia tridentata var. flavescens Eric Schori, Kazuyuki Ishimaru 2005-6-24 15 Humboldt Titlow Hill Rd. S of Hwy. 299, Buck Flat 1595 Comment
  HSC102016  Hosackia oblongifolia var. oblongifolia M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 917 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC21513  Hydrocotyle ranunculoides R. L. Jarvis 1962-4-29 34 Humboldt Clam Beach Lagoons, 0.5 mi S of Little River on Hwy 101 0 Comment
  HSC97448  Hydrophyllum occidentale C. Witte 2007-5-22 84 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1390 Comment
  CAS-BOT-BC400795  Hypericum anagalloides Doris K. Kildale 1925-8-17 1241 Humboldt Trinity Summit - Waterdog Lake 1828 Comment
  RSA246853  Hypericum calycinum R. F. Thorne, P. C. Everett, K. Thorne 1965-8-9 35315 Humboldt Clam Beach County Park: along highway. 3 Comment
  UC668260  Hypericum formosum var. scouleri Joseph P. Tracy 1935-7-21 14112 Humboldt opposite mouth of Willow Creek (Lack Pond); Trinity R. Valley, Lack Pond 152 Comment
  UC668257  Hypericum perforatum Joseph P. Tracy 1935-7-27 14274 Humboldt along trail Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  UC902119  Hypericum perforatum Joseph P. Tracy 1943-8-23 17444 Humboldt Eureka 6 Comment
  UCR32144  Hypericum perforatum David J. Keil 1983-7-1 17279 Humboldt North Coast Range, Bull Creek Flats Road, 2.5 mi. NE of Honeydew Comment
  HSC95115  Hypericum perforatum Andrea Pickart 2002-7-9 167 Humboldt Bracut Marsh, in a transitional zone between brackish and riparian 9 Comment
  HSC39463  Hypochaeris glabra J. P. Smith, J. O. Sawyer 1976-5-2 Humboldt S. R. 96, 4.9 mi. N of its junction with S.R. 299 122 Comment
  HSC5864  Hypochaeris glabra Lincoln Constance 1934-5-24 639 Humboldt S Fork Eel River 122 Comment
  CAS-BOT-BC311431  Hypochaeris radicata Alice Eastwood 1907-5-15 s.n. Humboldt Samoa Comment
  JEPS36538  Hypochaeris radicata Lincoln Constance 1934-5-31 762 Humboldt along n side Bull Creek (from w boundary of park to Grasshopper Peak Road, Squaw Creek Road); South Fork Eel River, Bull Creek Region, Bull Creek flat Comment
  HSC56329  Ipomopsis aggregata Overton, Butler 1979-8-2 12684 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC23734  Iris douglasiana Tim Baroni 1971-7-5 101 Humboldt 8 mi. E of Petrolia Comment
  JEPS17225  Iris douglasiana Mr. and Mrs. Geo. Parrish 1930-5-21 Humboldt Trinidad Comment
  UC4280  Iris douglasiana Harley P. Chandler May 1901 1262 Humboldt Redwood Belt; North Coast Ranges 457 Comment
  HSC74237  Iris purdyi M. A. Baker 1980-7-11 2796 Humboldt Near Red Mtn. 1341 Comment
  UC275564  Iris purdyi Joseph P. Tracy 1924-7-4 6715 Humboldt Snow Camp; Northern Coast Ranges 1371 Comment
  BLMAR624  Iris purdyi Jennifer Wheeler 2011-6-1 624 Humboldt Lacks Creek, Bair rd near pickle springs 609 Comment
  JEPS17230  Iris purdyi Joseph P. Tracy 1938-3-27 15700 Humboldt Miranda South Fork Eel River (slopes along South Fork Eel River) 121 Comment
  UC429165  Iris purdyi P. E. Goddard 1906-6 644 Humboldt above Bells (Eel River); Eel River Comment
  HSC66484  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-4-27 435 Humboldt FS Rd. 12N20, 0.9 mi. from FS Rd. 15N01, Orleans 762 Comment
  HSC70346  Iris tenuissima M. A. Baker 1980-6-7 1816 Humboldt Near Brush Mtn. 287 Comment
  HSC74329  Iris tenuissima M. A. Baker 1980-6-16 1958 Humboldt Near Onion Mtn. 1280 Comment
  HSC97561  Iris tenuissima subsp. tenuissima Cara Witte 2007-6-1 162 Humboldt Horse Mountain Botanical Area. Along Forest Service 6N38. 1311 Comment
  CAS-BOT-BC112458  Isolepis cernua W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  CAS-BOT-BC112456  Isolepis cernua Joseph Prince Tracy 1927-9-4 8363 Humboldt Sand Dunes, near Samoa on Humboldt Bay; depressions where water collects in winter.q 6 Comment
  HSC7447  Isolepis cernua D. E. Anderson 1961-9-13 1817 Humboldt 1 mi. S of Trinidad Comment
  HSC37499  Jaumea carnosa J. D. Ackerman 1975-8-2 617 Humboldt Hwy. 101 between Arcata and Eureka. Humboldt Bay across from Murray Field Comment
  SEINET5782208 Image available Jaumea carnosa S. K. Harris, C. C. Harris 1939-8-26 Humboldt S shore of Humboldt Bay Comment
  HSC102931  Juncus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 934 Humboldt Patterson Meadows 1555 Comment
  UC1152088  Juncus articulatus Joseph P. Tracy 1927-8-7 8310 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA246770  Juncus bolanderi Robert F. Thorne, Percy C. Everett 1965-8-7 35176 Humboldt Big Lagoon. 2 Comment
  HSC36046  Juncus bolanderi Thomas W. Nelson 1975-9-24 2201 Humboldt Beside Indianola Rd., 0.5 mi. E of junction with Hwy. 101 Comment
  UC249542  Juncus bolanderi Joseph P. Tracy 1921-10-16 5971 Humboldt near Willow Creek (mouth of South Fork Trinity River); Northern Coast Ranges, Trinity River Valley 152 Comment
  BLMAR417  Juncus breweri Jennifer Wheeler 2007-8-29 417 Humboldt South Spit, growing on east side near bay 9 Comment
  HSC102210  Juncus confusus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1125 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC74671  Juncus effusus subsp. pacificus Gail Newton 1981-8-5 2360 Humboldt Near Bug Creek, E Fork. 820 Comment
  UC1152106  Juncus effusus subsp. pacificus Joseph P. Tracy 1930-11-9 9247 Humboldt just n Arcata (on Redwood Highway) Comment
  HSC58092  Juncus exiguus G. L. Clifton, Terry Griswold 1979-8-1 12005 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC91872  Juncus hesperius E. Mackey 1987-8-28 Humboldt Patrick's Point State Park, Palmer's Point Comment
  RSA168867  Juncus hesperius Joseph P. Tracy 1938-6-15 15938 Humboldt Carlotta. 61 Comment
  UC183957  Juncus occidentalis Joseph P. Tracy 1909-7-31 3052 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC249746  Juncus occidentalis Joseph P. Tracy 1923-6-19 6295 Humboldt Upper Mattole Valley Northern Coast Ranges 152 Comment
  HSC14075  Juncus oxymeris D. E. Anderson 1965-9-5 4089 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  RSA70263  Juncus phaeocephalus var. phaeocephalus F. W. Peirson 1923-7-11 3669 Humboldt 7 miles N of Arcata, Humboldt County Comment
  SEINET11789825  Juncus tenuis J. P. Tracy 1937-1 15609 Humboldt near Blue Lake, along Mad River 15 Comment
  JEPS66616  Kalmia polifolia subsp. microphylla Joseph P. Tracy 1935-7-26 14261 Humboldt Trinity Summit, at Water Dog Lakes Water Dog Lakes; Trinity Summit, Water Dog Lakes 1828 Comment
  UC35025  Kalmia polifolia subsp. microphylla J. Burtt Davy 1899-6-23 5823 Humboldt Trinity Summit; North Coast Ranges, Trinity Summit 2133 Comment
  SD87718  Keckiella corymbosa Frank W. Peirson 1926-7-12 7025 Humboldt Klamath River near Weitchpec Comment
  UCR136653  Keckiella corymbosa H. M. Pollard 1948-8-12 s.n. Humboldt Near mouth of Pearch Creek, near Orleans 366 Comment
  UC577410  Keckiella lemmonii Joseph P. Tracy 1934-8-14 13582 Humboldt near mouth Bull Creek; South Fork of Eel River 60 Comment
  UC162570  Kickxia elatine Joseph P. Tracy 1911-7-11 3508 Humboldt Hoopa Valley; Northern Coast Ranges 152 Comment
  UC1103696  Koeleria macrantha Joseph P. Tracy 1934-6-19 13233 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  UC1132146  Koeleria macrantha H. S. Yates 1936-6-17 5699 Humboldt lower nw slope Buck Mountain; South Fork Peak Quad., lower nw slope Buck Mountain Comment
  UC1152009  Koeleria macrantha Joseph P. Tracy 1951-6-24 19541 Humboldt between serpentine rockpile and Ashfield Butte Kneeland Prairie; , btw rockpile and Ashfield Butte 762 Comment
  HSC98659  Lactuca biennis Cara Witte 2007-7-26 591 Humboldt National Forest 1 on Kinsey Ridge. 1/4 mile south of intersection with 4N06. Near power poles. 1283 Comment
  UC1051586  Lactuca serriola Joseph P. Tracy 1943-11-28 17460 Humboldt gravel bars <from> Alton to Fortuna; Eel River 15 Comment
  HSC14214  Lamium purpureum S. J. Roberts 1965-4-10 26 Humboldt Dike of old Mad River channel Comment
  RSA94807  Lapsana communis F. W. Peirson 1926-7-12 7040 Humboldt Redwood Creek, Orick. Comment
  HSC71032  Lasthenia californica Thomas W. Nelson 1977-4-20 3324 Humboldt Along FS Rd. 1N15 at bridge over Mad River 762 Comment
  CAS-BOT-BC337994  Lasthenia californica Doris K. Kildale 1926-5-9 1992 Humboldt Kneeland Prairie at rock pile 853 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
  POM161459  Lasthenia glaberrima Joseph P. Tracy 1916-6-19 4720 Humboldt Dobbyn Creek Comment
  CHSC71616  Lathyrus biflorus Kenneth W. Fuller 1998-7-2 Humboldt Collected on Red Mountain. Comment
  UC1368670  Lathyrus glandulosus J. P. Tracy 1946-5-19 17530 Humboldt Kneeland, at Cameron Hill Kneeland; , Cameron Hill 670 Comment
  JEPS55292  Lathyrus lanszwertii var. tracyi Jos. P. Tracy 1918-5-26 4943 Humboldt Janes Ranch Grouse Mt.; Janes Ranch, Grouse Mt., Humboldt Co. 914 Comment
Read comments
Jun 2 2013
  RSA406670  Lathyrus latifolius M. B. Dunkle 1934-8-18 4808 Humboldt Fortuna Comment
  HSC101985  Lathyrus nevadensis var. nevadensis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 883 Humboldt Patterson Meadows 1566 Comment
  UC495706  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1932-7-16 10641 Humboldt McKay Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC14753  Lathyrus palustris J. P. Tracy 1907-7-20 2593 Humboldt Near Samoa Comment
  UC709436  Lathyrus polyphyllus Joseph P. Tracy 1936-8-8 15128 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  UC1222411  Lathyrus polyphyllus Joseph P. Tracy 1948-7-11 18074 Humboldt along Trinity Highway Willow Creek Canyon Comment
  UC15357  Lathyrus torreyi H. N. Bolander 1867-1 6506 Humboldt Shelter Cove Comment
  RSA74591  Lathyrus tracyi C. L. Hitchcock 1949-6-8 19086 Humboldt 3 miles SE of Willow Creek, along Highway #299. Comment
  RSA64968  Lathyrus vestitus subsp. bolanderi C. L. Hitchcock 1949-6-7 19083 Humboldt 1/5 mile S of Pepperwood, along Highway #101. Comment
  HSC103337  Lathyrus vestitus var. ochropetalus Thomas W. Nelson, Jane Nelson 1983-6-12 7413 Humboldt Along Kneeland Rd., ~ .5 mi. SE of junction with Maple Creek Rd. 671 Comment
  CAS-BOT-BC325995  Layia carnosa David D. Keck; J. Clausen 1935-6-16 3381 Humboldt Mouth of Little River. Comment
  HSC104093  Layia carnosa Kyle Brown Apr 2015 33 Humboldt Ma-le'l Dunes; ~.25 mi. NW of parking lot 3 Comment
  HSC34455  Layia carnosa J. P. Smith, J. O. Sawyer 1975-5-11 8078 Humboldt Samoa Peninsula, just N of Coast Guard Station boundary. Comment
  HSC39786  Layia carnosa Peter Sorensen 1976-6-14 Humboldt N Spit Comment
  UC34175  Layia carnosa Harley P. Chandler May 1901 1150 Humboldt Humboldt Bay 3 Comment
  JEPS40021  Layia gaillardioides W. L. Jepson 1902-8-3 2140 Humboldt Bear River Range to Petrolia Comment
  RSA249507  Ledum glandulosum subsp. columbianum R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-9 35295 Humboldt Big Lagoon. 3 Comment
  CAS-BOT-BC274330  Leersia oryzoides Henry M. Pollard 1947-8-7 s.n. Humboldt Klamath River's edge nr. woods on placer mine, Orleans region Comment
  POM87946  Lemna gibba Le Roy Abrams, Rimo C. Bacigalupi 8271 Humboldt Big Lagoon, south of Orick. Comment
  CHSC33097  Leontodon saxatilis subsp. saxatilis J. P. Smith 1971-10-6 4966 Humboldt Dunes at the end of Murray Road in McKinleyville. Comment
  UC175386  Leontodon saxatilis subsp. saxatilis J. P. Tracy 1909-7-4 3008 Humboldt immediate vicinity Eureka 0 Comment
  UC1239532  Leontodon saxatilis subsp. saxatilis Joseph P. Tracy 1918-8-15 5094 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  UC1199168  Lepidium virginicum Joseph P. Tracy 1900-9-9 959 Humboldt near Hydesville; Northern Coast Region, Van Duzen River 60 Comment
  HSC26625  Leptosiphon androsaceus Thomas W. Nelson 1971-5-31 445 Humboldt 915 Comment
  POM264483  Leptosiphon androsaceus Victor Duran 1933-5-10 3403 Humboldt Near Blockburg. Comment
  UCSB15427  Leucanthemum vulgare 1961-7-3 Humboldt Along State Highway 299, 18.5 miles east of U.S. Highway 101 670 Comment
  HSC5360  Leucanthemum vulgare Francis Winter 1960-4-19 Humboldt Samoa peninsula 5 miles W of Arcata. Comment
  HSC89757  Leucanthemum vulgare M. Roantree 1985-5-15 49 Humboldt E side of Trinidad Head. Comment
  HSC55095  Lewisia leeana G. L. Clifton, Griswold 1979-7-31 11799 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  JEPS5878  Lewisia triphylla Joseph P. Tracy 1935-7-24 14178 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  UCD86624  Leymus triticoides V. L. Baker 1920-8-1 s.n. Humboldt Grizzly Bluff. Comment
  CAS-BOT-BC436497  Ligusticum apiifolium Alice Eastwood; John Thomas Howell 1937-6-26 5073 Humboldt Near Berry Summit Comment
  HSC34742  Ligusticum californicum Thomas W. Nelson 1974-7-19 1673 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1197320  Ligusticum californicum Joseph P. Tracy 1937-8-12 15633 Humboldt Snow Camp 1402 Comment
  RSA168923  Lilaea scilloides Joseph P. Tracy 1950-6-18 18844 Humboldt Cape Mendocino, near the ocean shore, south of point of the Cape: Davis Creek. 3 Comment
  UC1222551  Lilaea scilloides Joseph P. Tracy 1950-6-18 18844 Humboldt s of point Cape Mendocino (at Davis Creek) 3 Comment
  UC176689  Lilium columbianum Joseph P. Tracy 1913-7-13 4356 B Humboldt Patrick's Point; Northern Coast Ranges 30 Comment
  HSC31642  Lilium columbianum Glenn McGourty 1974-6-1 80 Humboldt Comment
  HSC58077  Lilium kelleyanum G. L. Clifton, Griswold 1979-8-1 11979 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  RSA256735  Lilium kelleyanum A. Montalvo, J. D. Ackerman 1974-8-1 399 Humboldt 1 mile west of Kneeland P.O. on Greenwood Heights Road Comment
  CAS-BOT-BC130683  Lilium occidentale Dr. Doris Niles; Thomas Nelson 1974-6-20 s.n. Humboldt On the Wiggens ranch just west of the garbage dump Comment
  UC303044  Lilium pardalinum Joseph P. Tracy 1926-6-27 7668 Humboldt Horse Mountain; Northern Coast Ranges 1463 Comment
  HSC56956  Lilium pardalinum subsp. pardalinum Overton, Butler 1979-7-23 9467 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  HSC58108  Lilium pardalinum subsp. pardalinum G. L. Clifton, Griswold 1979-8-1 12043 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC63836  Lilium pardalinum subsp. pardalinum M. A. Baker 1979-6-29 951 Humboldt 900 Comment
  CAS-BOT-BC132966  Lilium rubescens V. Rattan 1882-6-1 s.n. Humboldt unspecified Comment
  HSC100558  Lilium washingtonianum Carl C. Marshall Jun 1885 88 Humboldt Coyote Camp. Comment
  SEINET6950811  Limnanthes douglasii Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UCR63386  Limnanthes douglasii subsp. nivea Barbara Ertter, Thomas J. Delendick 1987-5-16 6925 Humboldt Vista Point just west of Berry Summit on Hwy 299, c. 15 airmiles east of Arcata 832 Comment
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Jul 10 2019
  UCR160588  Limnobium laevigatum Gordon Leppig, Tony LaBanca 2003-3-13 1823 Humboldt Alder Grove [Rd.] Pond, Arcata 9 Comment
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Jul 6 2015
  UC702549  Linanthus androsaceus C. C. and S. K. Harris 1942-6-17 1272 Humboldt 1 mi n and 3 mi e Chalk 665 Comment
  UC906691  Linanthus androsaceus Joseph P. Tracy 1943-5-23 17424 Humboldt e of Redwood Creek (Berry's Mt. on Trinity Highway); Berry's Mt. 487 Comment
  UC908238  Linanthus ciliatus Joseph P. Tracy 12923 Humboldt s slope Grouse Mountain (towards Grouse Creek Basin); North Coast Ranges 1219 Comment
  HSC15803  Linum bienne Jack Rockwell 1962-4-29 78 Humboldt Lone Star Jct. Comment
  HSC12547  Linum bienne C. Kline 1970-10-26 42 Humboldt End of School Rd., Mckinleyville, bluffs above Mad River. Comment
  HSC97615  Linum bienne Cara Witte 2007-6-4 192 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC161076  Linum usitatissimum Joseph P. Tracy 1911-6-11 3236 Humboldt near Trinidad; Northern Coast Ranges 60 Comment
  POM301291  Listera caurina H. E. Parks, Joseph P. Tracy 1949-6-25 11667 Humboldt Trinity Summit, near Box Camp 1524 Comment
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Jul 13 2018
  HSC98814  Listera caurina Cara Witte 2008-7-7 843 Humboldt National Forest Road 5N10. 2 miles south of intersection with Friday Ridge Road. Near waterhole sign. 1224 Comment
  RSA293190  Lithocarpus densiflorus var. densiflorus Thomas W. Nelson, Jane P. Nelson 1978-2-5 3760 Humboldt Kneeland, east side of junction of Kneeland & Maple Creek roads. 671 Comment
  CAS-BOT-BC36105  Lithocarpus densiflorus var. densiflorus Nancy Ryan Zabriskie; Walter Zabriskie 1973-6-10 676 Humboldt Pearch Creek campground by the Klamath River 137 Comment
  CAS-BOT-BC435647  Lithophragma heterophyllum Joseph P. Tracy 1932-4-24 9827 Humboldt South fork of Eel River, between Miranda and Redway 91 Comment
  CAS-BOT-BC342350  Logfia gallica Henry M. Pollard 1948-7-27 s.n. Humboldt Near mouth of Red Cap Creek, near Orleans Comment
  UC1117652  Lolium multiflorum C. L. Hitchcock 1963-7-14 22906 Humboldt along Eel River at Fern Bridge; along Eel River Comment
  UC50707  Lolium multiflorum Joseph Burtt Davy and Walter C. Blasdale 1899-6-17 5606 B Humboldt Arcata Comment
  HSC99106  Lomatium dasycarpum subsp. dasycarpum Cara Witte 2008-6-18 743 Humboldt Horse Mountain Botanical Area. Junction of 6N36 and 6N36A. 1375 Comment
  JEPS14246  Lomatium dissectum var. dissectum Joseph P. Tracy 1930-6-29 8808 Humboldt lower foothhills of Buck Mt. (on its n.w. slope); Northern Coast Ranges, Buck Mt. 762 Comment
  JEPS16236  Lomatium dissectum var. dissectum Joseph P. Tracy 1913-6-20 4237 Humboldt lower foothhills of Buck Mt. (on its n.w. slope); Northern Coast Ranges, Buck Mt. 762 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
  SEINET12118910  Lomatium nudicaule J. P. Tracy 1951-1 19573 Humboldt Twin Lakes vicinity (Snow Camp & Twin Lakes Trip) Comment
  HSC42875  Lomatium tracyi Barbara Kelly 1977-7-16 537 Humboldt 1/4 mi. in from Horse Mtn. Road, 1/2 mi. below turnoff to summit, near end of unused gravel road Comment
  OBI77140  Lomatium utriculatum Tracey Call, Viola Call 1964-6-20 2272 Humboldt Above Van Duzen river 7 mi east of Bridgeville Comment
  UC1222487  Lonicera conjugialis Joseph P. Tracy 1950-8-8 19287 Humboldt Croghan Hole Trinity Summit 1676 Comment
  CAS-BOT-BC240475  Lonicera hispidula John McLaren 1920-9-1 s.n. Humboldt Unspecified Comment
  HSC79550  Lonicera hispidula var. vacillans Kenneth Clark 1980-6-14 669 Humboldt On western slope above Dead Man's Gulch. 145 Comment
  RSA46852  Lonicera hispidula var. vacillans Doris K. Kildale 1927-6-28 3608 Humboldt Mad River, Warren Creek Junction. Comment
  SEINET10745663  Lonicera hispidula var. vacillans J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13012 Humboldt On U.S. 101, near Holmes, 1.76 km south of Stafford Road. Comment
  CAS-BOT-BC240667  Lonicera interrupta Carl D. Duncan 1920-9-20 s.n. Humboldt Hoopa Valley Comment
  HSC45276  Lonicera involucrata var. ledebourii Brad Klipfel 1974-4-27 312 Humboldt SW side of Big Lagoon. Comment
  HSC96530  Lonicera involucrata var. ledebourii Gordon Leppig 1998-5-11 758 Humboldt Big Lagoon County Park. 3 Comment
  LA205885  Lonicera involucrata var. ledebourii H. Lewis; 1940-6-3 sn Humboldt Dry Lagoon Beach State Park, edge of lagoon Comment
  RSA455682  Lonicera involucrata var. ledebourii E. A. Purer 1932-7-27 15978 Humboldt Near Samoa. Comment
  RSA455683  Lonicera involucrata var. ledebourii Charlotte M. Hoak 1931-7-15 s.n. Humboldt Alton. Comment
  HSC96480  Lotus corniculatus Gordon Leppig 1997-8-3 644 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  JEPS55388  Lotus crassifolius var. crassifolius Lincoln Constance 1934-6-15 877 Humboldt Summit of Grasshopper Peak South Fork Eel River, Bull Creek Region 975 Comment
  RSA254790  Lotus denticulatus Thomas W. Nelson, James Nelson, A. Nelson 1973-5-28 949 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC726594  Lotus denticulatus A. A. Heller 1923-7-10 13791 Humboldt between Scotia and Pepperwood; Eel River Comment
  UC80965  Lotus formosissimus T. S. Brandegee Jun 1891 Humboldt Eureka Comment
  RSA168893  Lotus micranthus Joseph P. Tracy 1936-5-30 14839 Humboldt Near Samoa on Humboldt Bay. 6 Comment
  JEPS19455  Lotus micranthus Joseph P. Tracy 1917-5-30 4795 Humboldt Northern Coast Region, mouth of Little River Little River; Northern Coast Region, Little River 6 Comment
  JEPS55459  Lotus nevadensis var. nevadensis Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  UC33555  Lotus nevadensis var. nevadensis Chestnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  RSA168892  Lotus oblongifolius Joseph P. Tracy 1936-6-3 14856 Humboldt Lack Pond, in Trinity River Valley, opposite mouth of Willow Creek. Comment
  UC1947582  Lotus oblongifolius var. oblongifolius Joseph P. Tracy 1919-5-31 5176 Humboldt near, at Lack Pond Willow Creek; Northern Coast Ranges, Trinity River Valley, Lack Pond 152 Comment
  UC33561  Lotus oblongifolius var. oblongifolius Chesnut and Drew Aug 1888 Humboldt mouth of Grouse Creek Grouse Creek Comment
  SEINET3694253 Image available Lotus purshianus Joseph P. Tracy 1937-8-12 15628 Humboldt Bald Mountain: Border of Lake Prairie Bog, 3 miles S of Murphy Meadows 1067 Comment
  SEINET3560065 Image available Lotus subpinnatus Joseph P. Tracy 1906-7-4 2521 Humboldt Near Hydesville, Yager Creek 61 Comment
  RSA168887  Lotus yollabolliensis Joseph P. Tracy 1941-8-28 17048 Humboldt South Fork Mountain; open glades along summit near Blake lookout 1738 Comment
  CAS-BOT-BC342559  Luina hypoleuca Frank W. Peirson 1926-7-12 7026 Humboldt Klamath River near Weitchpec Comment
  RSA170200  Luina hypoleuca Joseph P. Tracy 1944-8-13 17489 Humboldt Near Romanzoffia Creek. Willow Creek Canyon, along Trinity Highway 366 Comment
  CAS-BOT-BC198267  Lupinus Wm. Bridge Cooke 1946-6-11 17369 Humboldt Roadside 1 mi. N of Eureka Comment
  UC503018  Lupinus Joseph P. Tracy 1927-6-18 8189 Humboldt Capetown; Northern Coast Ranges, Capetown 304 Comment
  UC176295  Lupinus adsurgens Joseph P. Tracy 1913-6-19 4200 B Humboldt opposite Buck Mountain (Dinsmore's); Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  RSA167388  Lupinus adsurgens var. adsurgens Joseph P. Tracy 1946-6-15 17567 Humboldt Ski Lodge, Horse Mtn. 1220 Comment
  HSC41303  Lupinus albicaulis Brad Klipfel 1974-7-23 463 Humboldt Horse Mtn. Comment
  UC303158  Lupinus albicaulis var. shastensis Joseph P. Tracy 1923-6-19 6298 Humboldt near Kings Peak (Wilder Ridge); Northern Coast Ranges, near Kings Peak, Wilder Ridge 762 Comment
  HSC50953  Lupinus andersonii G. L. Clifton, Overton 1979-6-3 3777 Humboldt Near Pine Mtn., close to the town of Forest Glen 1495 Comment
  SEINET12154367  Lupinus andersonii J. P. Tracy 1949-1 18433 Humboldt Trinity Summit. on rd from Hoopa to Box Camp nr rd to "Big Hill" turns off Comment
  HSC14777  Lupinus arboreus D. B. Bader 1963-4-1 18 Humboldt Clam Beach Lagoons, W of Hwy. 101. Along the Railroad tracks. Comment
  HSC40973  Lupinus arboreus Linda M. Barker 1976-5-13 1494 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  SBBG115192  Lupinus arboreus D. Leaberry 1992-6-20 Humboldt Clam Beach County Park, 1 mi N of Arcata Airport on Hwy 101 Comment
  SD81280  Lupinus arboreus Darley F. Howe 1969-5-30 4586 Humboldt 2.4 miles south of Orick on Hwy 101, fresh-water lagoon Comment
  UC149843  Lupinus arboreus J. P. Tracy 1910-5-8 3134 Humboldt immediate vicinity Eureka; Immediate vicinity of Eureka 0 Comment
  UCD106589  Lupinus arboreus Linda M. Barker 1976-5-13 1472 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC14801  Lupinus bicolor R. T. Forester 1963-5-6 44 Humboldt 1 mi. S of Fairhaven on Samoa Rd. Comment
  HSC40960  Lupinus bicolor Linda M. Barker 1976-6-1 1564 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC95546  Lupinus bicolor Andrea Pickart 2002-5-20 106 Humboldt Manila Dunes, near Manila Community Services District treatment area 15 Comment
  UC15950  Lupinus bicolor Harley P. Chandler May, 1901 1146 Humboldt Humboldt Bay; Humboldt Bay, North Coast Ranges 3 Comment
  HSC79474  Lupinus constancei Thomas W. Nelson, Jane Nelson 1982-7-9 7079 Humboldt Mt. Lassic (Signal Peak) and saddle to E 1768 Comment
  SEINET12154564  Lupinus latifolius J. P. Tracy 1941-1 16916 Humboldt Panther Gap on the Bull Crk - Mattole Rd Comment
  HSC39639  Lupinus latifolius subsp. latifolius Thomas W. Nelson, Jane P. Nelson 1976-6-16 2745 Humboldt W of Alder Springs along 2S08 1494 Comment
  POM276552  Lupinus littoralis Lyman D. Benson 1928-7-10 446 Humboldt Clam Beach, Trinidad. 12 Comment
  POM179219  Lupinus luteolus H. C. Cantelow 1940-7-6 s.n. Humboldt Near Van Duzen River, 7.5 miles east of Dinsmore. Comment
  RSA0084061  Lupinus obtusilobus Jane P. Nelson 1974-5-27 1318 Humboldt Mendocine National Forest near Mendocino Pass. 1524 Comment
  HSC89503  Lupinus rivularis M. Roantree 1985-5-30 76 Humboldt E side of Trinidad Head along dirt road Comment
  HSC58566  Lupinus tracyi G. L. Clifton, Griswold 1979-7-26 10197 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  HSC59452  Lupinus tracyi Richard Runyon 1979-6-27 42 Humboldt Along trail to Trinity Summit Station, 50' S of intersection of Grogan hole-Devils backbone trail 1768 Comment
  UCR40070  Lupinus tracyi Robert Runyon 1979-6-27 s.n. Humboldt Six Rivers National Forest, Along a ridge near (NE of) Trinity Summit Station, Trinity Co. line 1829 Comment
  HSC74684  Luzula comosa Gail Newton 1981-8-7 2471 Humboldt Near Board Camp Mtn. 1478 Comment
  HSC82212  Luzula comosa Thomas W. Nelson 1977-6-15 3439 Humboldt Along old road to ski area 1372 Comment
  HSC67152  Luzula comosa J. P. Smith, Steve Selva 1970-6-30 4144 Humboldt Comment
  CAS-BOT-BC436736  Luzula comosa var. laxa R. K. Gierisch; D. H. Esplin 1969-7-1 3539 Humboldt Six Rivers area: Grouse Mt. 1584 Comment
  HSC99587  Luzula parviflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 252 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SD53243  Luzula parviflora Darley F. Howe 1962-5-22 Humboldt 3 miles east of Orick on Bald Mountain Road. 395 Comment
  RSA69739  Luzula parviflora F. W. Peirson 1923-7-11 3673 Humboldt About 3 miles north of Orick. Comment
  UC1103675  Luzula subsessilis Joseph P. Tracy 1900-5-28 819 Humboldt Northern Coast Region, at Eureka 0 Comment
  UC183767  Luzula subsessilis Joseph P. Tracy 1914-5-14 4443 Humboldt Fort Seward Northern Coast Ranges, Fort Seward 121 Comment
  CAS-BOT-BC61934  Lycopodium clavatum Donald Branscomb 1959-9-1 s.n. Humboldt Trinidad Comment
  HSC23776  Lycopodium clavatum R. A. Vanbianchi 1971-9-24 90 Humboldt Near Fieldbrook. Comment
  HSC97349  Lycopodium clavatum D. E. Anderson 1965-11-26 4176 Humboldt 2 mi. E. of Moonstone Beach Comment
  JEPS26544  Lycopodium clavatum Don Branscomb July, 1959 Humboldt Trinidad Comment
  UC496149  Lycopodium clavatum Mrs. L. B. Kildale 1930-11-1 10755 Humboldt 1 mi n Crannell (on trail to Camp 20) 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
  POM87675  Lysichiton americanus Le Roy Abrams, Rimo C. Bacigalupi 8277 Humboldt Big Lagoon. South of Orick. Comment
  UC1191231  Lysichiton americanus Malcolm A. Nobs and S. Galen Smith 1949-8-3 1183 Humboldt southern outskirts of Eureka Comment
  SEINET11770339  Lysichiton americanus F. H. Utech 1986-1 86 -416 Humboldt between Capetown & Ferndale along Mattole Creek, SW slope of Bear River Ridge 100 Comment
  UC183603  Lythrum hyssopifolia Joseph P. Tracy 1912-10-20 4006 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  UC420699  Lythrum hyssopifolia Harley P. Chandler June, 1901 1393 Humboldt North Coast Ranges, Hupa Indian Reservation Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  HSC12034  Lythrum hyssopifolia D. Santana 1970-10-28 82 Humboldt 3 mi. S of Trindad. Comment
  HSC59797  Lythrum hyssopifolia Clark L. Miller 1979-5-19 1148 Humboldt Along Samoa Blvd. before railroad tracks, 4 mi. W of Arcata. Comment
  RSA0015876  Lythrum hyssopifolia J. P. Smith, Thomas W. Nelson 1977-6-30 9203 Humboldt Samoa Peninsula just east of the drag strip. Comment
  RSA47139  Madia bolanderi Doris K. Kildale 1925-8-16 1180 Humboldt Trinity Summit, Elk Horn Prairie 1524 Comment
  UC494147  Madia elegans H. E. Parks, J. P. Tracy 1930-5-25 882 Humboldt Laribee Valley Comment
  UC176862  Madia elegans Joseph P. Tracy 1911-7-6 3355 Humboldt between Three Creeks and mouth of Willow Creek 762 Comment
  HSC31215  Madia exigua D. E. Anderson 1972-6-20 5733 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  UC166101  Madia exigua Joseph P. Tracy 1908-6 2815 Humboldt opposite Buck Mountain (Valley of the Van Duzen River); Northern Coast Ranges 762 Comment
  CAS-BOT-BC343024  Madia gracilis Doris K. Kildale 1927-7-1 3619 Humboldt Alton Hill 30 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
  HSC74211  Madia gracilis M. A. Baker 1980-7-15 2961 Humboldt Near Whiting Ridge. 1341 Comment
  UC1223208  Madia gracilis Joseph P. Tracy 1950-7-6 19026 Humboldt 3 mi s of Burr Valley; Sproston's Place 1066 Comment
  UC165190  Madia gracilis Joseph P. Tracy 1911-6-25 3250 Humboldt at Bucksport; Eureka 0 Comment
  CAS-BOT-BC343587  Madia sativa Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC5990  Madia sativa W. D. Stevens 1967-7-22 63 Humboldt Above the dirt road from old Hwy. 101 to the top of N bank of Mad River Comment
  RSA246852  Mahonia nervosa R. F. Thorne, P. Everett 1965-8-5 35138 Humboldt Mt. Chamisal: below sumit. 534 Comment
  HSC45618  Maianthemum dilatatum Diane L. Reed 1978-4-29 37 Humboldt Trinidad Head Comment
  CAS-BOT-BC508505  Maianthemum dilatatum W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  SEINET12043868  Maianthemum dilatatum H. C. Cantelow 1936-1 s.n. Humboldt 5 mi N of Orick Comment
  UC303039  Maianthemum dilatatum Joseph P. Tracy 1926-4-25 7414 Humboldt Grizzly Creek on Van Duzen R. Northern Coast Ranges, Van Duzen R., Grizzly Creek 91 Comment
  CAS-BOT-BC511451  Maianthemum racemosum subsp. amplexicaule S. Morrissette; J. Williams; K. Kopper 1994-5-6 049 Humboldt 0.35 mile south of Hwy 299 on Titlow rd. 853 Comment
  RSA24193  Maianthemum racemosum subsp. amplexicaule Carl B. Wolf 1941-3-2 9981 Humboldt Along north bank of the Van Duzen River, 4.8 miles above Carlotta 61 Comment
  HSC40015  Malacothrix floccifera Thomas W. Nelson, Jane P. Nelson 1976-7-1 2916 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  HSC98706  Malacothrix floccifera Cara Witte 2007-7-24 572 Humboldt Ammon Ridge Road. 4 miles east of intersection with National Forest 1. 1462 Comment
  UC14182  Malus fusca W. C. Blasdale 1896-6-1 Humboldt Freshwater Comment
  RSA178549  Malus sylvestris Joseph P. Tracy 1950-4-23 18636 Humboldt Trinity River Valley, at Willow Creek. Comment
  HSC89477  Marah oregana P. A. Daly 1986-3-12 89 Humboldt Trinidad Head 61 Comment
  CDA42220  Marah oregana T. C. Fuller 1966-5-24 14711 Humboldt West side of Highway 101, 2 miles north of Trinidad. 0 Comment
  HSC7035  Marah oregana D. E. Anderson 1962-3-31 1952 Humboldt Coastal area of Prairie Creek State Park Comment
  HSC95680  Marah oregana Steven Lee 2004-4-11 16 Humboldt About 1 mi. N of Scenic Dr., Houda Point. Off of Hwy. 101, Westhaven. Comment
  HSC39795  Matricaria discoidea Peter Sorensen 1976-8-8 Humboldt King Salmon Comment
  UC1197430  Medicago arabica Joseph P. Tracy 1936-6-8 14867 Humboldt Trinidad; on bluffs 3 Comment
  UC1103429  Medicago polymorpha Joseph P. Tracy 1934-3-25 13169 Humboldt Blue Slide Van Duzen River 91 Comment
  UC1197425  Medicago polymorpha Joseph P. Tracy 1932-5-1 9882 Humboldt vicinity of Garberville Northern Coast Ranges 121 Comment
  HSC14970  Medicago polymorpha J. E. Lankila 1962-5-6 16 Humboldt W bank of Eel River across from Shively, .25 mi. from Bear Creek Comment
  UCD107900  Medicago polymorpha W. Williams 1951-1 s.n. Humboldt location unknown. Comment
  RSA10133  Melica bulbosa Joseph P. Tracy 1932-7-12 10445 Humboldt Open ground at Corral Prairie, Trinity Summit, Klamath Mountains. 1524 Comment
  SEINET200337 Image available Melica californica J. P. Tracy 1921-5-30 5491 Humboldt Kneeland Prairie 762 Comment
  UC180729  Melica geyeri Joseph P. Tracy 1913-6-20 4230 Humboldt lower nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  UCD87370  Melica harfordii A. A. Beetle; G. L. Stebbins Jr. 1942-6-1 3453 Humboldt 2 miles north of Orleans. Klamath River. Comment
  SEINET200110 Image available Melica stricta Joseph P. Tracy 1935-7-28 14333 Humboldt Trinity Summit head of Brett Hole 1830 Comment
  UC526916  Melica subulata Joseph P. Tracy 1926-5-22 7503 Humboldt Prairie Creek; Northern Coast Ranges 152 Comment
  UCD88677  Melica subulata Joseph. P. Tracy 1942-6-2 17100 Humboldt 2 miles north of Bridgeville. 609 Comment
  JEPS65552  Melilotus albus Lincoln Constance 1934-5-26 661 Humboldt Dyerville Bridge South Fork Eel River, Bull Creek Region (s end, sand and gravel bar) 45 Comment
  HSC15519  Melilotus albus C. Kline 1970-11-9 66 Humboldt .5 mi. N of Bayside, Bayside Rd. Comment
  UC154001  Mentha canadensis Joseph P. Tracy 1908-6 2930 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UCD125052  Mentha canadensis Malcolm A. Nobs; S. Galen Smith 1949-8-9 1241 Humboldt on south side of the town of Blue Lake. 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
  UC169909  Mentzelia laevicaulis var. laevicaulis P. E. Goddard July 1901 24 Humboldt Hupa Valley Comment
  HSC77389  Menziesia ferruginea subsp. ferruginea L. P. Janeway 1983-5-3 258 Humboldt Community Forest Main Access Rd., E of HSU 168 Comment
  CAS-BOT-BC428712  Micranthes californica Joseph P. Tracy 1927-3-27 7851 Humboldt Northern Coast Ranges. Trinity River Valley, near the South Fork. 182 Comment
  CHSC62187  Microseris nutans K. L. Chambers 1990-6-23 5515 Humboldt Horse Mtn., off Titlow Hill Rd., s. of Hwy. 299, e. of Arcata. On slope below the parking lot for the winter spots area. 1493 Comment
  UC582734  Microseris nutans Joseph P. Tracy 1930-7-16 8900 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC45807  Microsteris gracilis J. P. Smith, Steve Selva 1970-6-30 4099 Humboldt Comment
  JEPS17993  Mimulus aurantiacus var. aurantiacus George B. Rossbach 1955-6-10 504 Humboldt 2 mi n Stephens Redwood Grove (Route 101); South Fork of Eel River Comment
  UC176996  Mimulus aurantiacus var. aurantiacus Joseph P. Tracy 1912-6-9 3646 Humboldt Alton Northern Coast Region 30 Comment
  HSC20704  Mimulus cardinalis Paul Shields 1955-8-12 Humboldt 1/2 mi. N of Miranda Comment
  RSA43890  Mimulus cardinalis H. M. Pollard 1947-8-30 s.n. Humboldt North Road along Klamath River near Redcap Creek. Orleans region. Comment
  UC1196772  Mimulus cardinalis Joseph P. Tracy 1924-8-10 6795 Humboldt 10 mi e Carlotta (near Strong's Station); Northern Coast Ranges 91 Comment
  SBBG66765  Mimulus dentatus L. Rowntree 1931-7-24 Humboldt Carlotta Comment
  SEINET12269862  Mimulus guttatus J. P. Tracy 1950-1 18745 Humboldt near Capetown, Cape Ridge, 1 mi E of Cape Mendocino 152 Comment
  UC1196773  Mimulus inodorus Joseph P. Tracy 1917-9-2 4845 Humboldt near top Grouse Mtn.; Northern Coast Ranges 1524 Comment
  UC582480  Mimulus inodorus Joseph P. Tracy 1923-9-16 6551 Humboldt near South Fork; Trinity River Valley 182 Comment
  JEPS86687  Mimulus nanus var. nanus L. R. Heckard with T. I. Chuang 1990-7-15 6770 Humboldt below and s of road South Fork Mountain (summit of Blakes Mountain); , Blakes Mountain 1800 Comment
  UC582597  Mimulus nanus var. nanus Joseph P. Tracy 1937-7-29 15597 Humboldt Hyampon Trail South Fork Mountain 1676 Comment
  UC179950  Mimulus nasutus Joseph P. Tracy 1914-5-14 4457 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  HSC49137  Mimulus pilosus R. Becking 1979-7-29 Humboldt Van Duzen River at Cheatam Grove E of Carlotta Comment
  UC1103339  Mimulus primuloides subsp. primuloides Joseph P. Tracy 1919-9-22 5266 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  JEPS80913  Mimulus pulsiferae Joseph P. Tracy 1926-6-20 7616 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
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Sep 10 2013
  HSC42454  Mimulus pulsiferae Barbara Kelly 1977-7-16 539 Humboldt On Horse Mtn. Rd., 1/2 mi. below where it forks; 1.5 mi. below summit 1402 Comment
  UC1198870 Image available Mitella diversifolia Joseph P. Tracy 1935-7-22 14123 Humboldt near Forks of Tish-Tang-A-Tang Creek; Trinity Summit 1371 Comment
  JEPS49672  Mitella trifida Joseph P. Tracy 1932-7-13 10503 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  UC1116235  Moehringia macrophylla Joseph P. Tracy 1942-6-2 17103 Humboldt Valley of South Yager Creek 762 Comment
  CAS-BOT-BC435065  Mollugo verticillata Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  HSC76524  Monardella odoratissima Teresa Prendusi 1981-7-21 273 Humboldt Near Whiteys Peak 1646 Comment
  SEINET3996427 Image available Monardella odoratissima Joseph P. Tracy 1926-6-20 7657 Humboldt Horse Mountain 2225 Comment
  UC1586862  Monardella odoratissima subsp. glauca Juha Pykala and D. H. Norris 1987-6-11 1570 Humboldt sw North Trinity Mountain; North Trinity Mountain Wilderness Comment
  UC176998  Monardella odoratissima subsp. glauca Joseph P. Tracy 1912-7-31 3928 Humboldt Near summit Buck Mountain; Northern Coast Ranges 1676 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
  CAS-BOT-BC444800  Montia diffusa Don Hagar 1957-6-6 59 Humboldt Brush Mountain, ca. 4 miles southwest of Willow Creek 853 Comment
  UC183599  Montia linearis Joseph P. Tracy 1913-6-14 4134 Humboldt in valley of Van Duzen River (Dinsmore's Ranch, opposite Buck Mountain); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  HSC31552  Montia parvifolia Glenn McGourty 1974-5-11 41 Humboldt Timber trail off Maple Creek Rd. in Kneeland 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
  RSA739606  Montia parvifolia John Dittes, Josephine Guardino 2003-6-7 2003 -64 Humboldt Outer N coast Range, 2.9 air mile NW of Legget, 5.2 air mile SE of Piercy, shaded rocks on eastern bank of S Fork Eel River. 183 Comment
  UC13659  Montia parvifolia Chesnut and Drew 1888-7-10 Humboldt [Jamjan's] Comment
  HSC16098  Morella californica W. R. Brigham 1962-4-7 2 Humboldt S of Big Lagoon Comment
  HSC16102  Morella californica H. E. Parks Mar 1934 4833 Humboldt Spruce Cove, Trinidad Comment
  HSC89544  Morella californica M. Roantree 1985-4-28 14 Humboldt W side of Trinidad Head, along trail Comment
  UCD86805  Muhlenbergia mexicana Joseph P. Tracy 1921-9-4 5957 Humboldt Trinity River Valley. Along Trinity River, at mouth of South Fork. 152 Comment
  JEPS70788  Myosotis discolor Joseph P. Tracy 1936-5-17 14809 Humboldt Lawrence Creek at crossing of Kneeland Rd.; Lawrence Creek 457 Comment
  HSC103302  Myosotis latifolia Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-28 3016 Humboldt Above College Cove (north of Trinidad State Beach); along path to beach. 61 Comment
  HSC59201  Myosotis sylvatica Terry Roth 1979-5-20 66 Humboldt Along old logging road that follows Jolly Giant Creek. 79 Comment
  HSC59659  Myosotis sylvatica Marla J. Carollo 1979-4-10 5 Humboldt Side of the logging trail behind dorms of HSU campus Comment
  HSC6872  Nasturtium officinale D. E. Anderson 1962-3-24 1947 Humboldt Along Turner Rd. Comment
  UC1198526  Navarretia atractyloides Joseph P. Tracy 1933-7-9 12645 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC98519  Navarretia divaricata subsp. divaricata Cara Witte 2007-6-7 235 Humboldt Brays Opening on National Forest 1. 1/2 mile north of intersection with 4N38. 1375 Comment
  UC1198599  Navarretia intertexta Joseph P. Tracy 1916-6-20 4731 Humboldt Alder Point Northern Coast Ranges 152 Comment
  UC1222720  Navarretia intertexta Joseph P. Tracy 1950-6-15 18773 Humboldt between Garberville and Harris (on the Robertson Ranch) Comment
  UC907815  Navarretia leucocephala subsp. minima Joseph P. Tracy 1928-6-24 8476 Humboldt between Middle and North Yager Creeks (East Ranch) 762 Comment
  HSC81494  Navarretia mellita Thomas W. Nelson, Jane P. Nelson 1980-8-12 6235 Humboldt Logging roads S of Lundbar Hills 61 Comment
  CAS-BOT-BC232739  Navarretia sinistra subsp. pinnatisecta Doris K. Kildale 1926-8-2 2444 Humboldt Flannegan's Mill near Strong's Station, Van Duzen River Comment
  UC198645  Navarretia tagetina Joseph P. Tracy 1916-6-19 4709 Humboldt Bosworths, on Laribee Creek Northern Coast Ranges, Laribee Creek 457 Comment
  HSC71063  Nemophila menziesii Thomas W. Nelson, Jane P. Nelson 1977-5-30 3397 Humboldt McKeown Ranch; along road to Anderson's Ford 854 Comment
  UC1239741  Nemophila menziesii Joseph P. Tracy 1938-5-1 15729 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  HSC77392  Nemophila menziesii var. atomaria L. P. Janeway 1983-4-16 233 Humboldt Near the old Hwy. 299 on W side of Berry Summit. 823 Comment
  UCSB29347  Nemophila menziesii var. atomaria Phelps, M. 1972-3-20 Humboldt 0.6 mi. along Black Sands Rd. from Shelter Cove Rd. junction; Shelter Cove 24 Comment
  RSA254745  Nemophila parviflora var. parviflora Thomas W. Nelson, James Nelson 1973-5-28 934 Humboldt McKeown Ranch north of Dinsmore. Comment
  HSC97976  Noccaea fendleri subsp. glauca Cara Witte 2007-7-5 423 Humboldt National Forest 1. 1.5 miles southeast of Forest Service Road 5N09. 1578 Comment
  OBI36374  Notholithocarpus densiflorus var. densiflorus David J. Keil 1983-7-1 17266 Humboldt Ca. 8 mi W of jctn US 101 along Bull Creek Flats rd Comment
  HSC41314  Notholithocarpus densiflorus var. echinoides Brad Klipfel 1974-9-2 541 Humboldt Horse Mountain Comment
  RSA0013605  Nuphar lutea subsp. polysepala C. B. Wolf 1937-9-14 9353 Humboldt Town of Blue Lake. 15 Comment
  HSC36066  Nuphar polysepala Wm. Henry 1973-5-12 Humboldt Clam Beach Lagoon, .5 mi. S of Little River Comment
  HSC59715  Nuttallanthus texanus Clark L. Miller 1979-5-9 1110 Humboldt Samoa Dunes off Samoa Blvd. Comment
  UCSB15645  Nuttallanthus texanus Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa; on peninsula on western side of Humboldt Bay Comment
  CAS-BOT-BC142292  Oemleria cerasiformis Doris K. Kildale; J. W. Gillespie 1929-6-25 8391 Humboldt Pine's Pasture, Eureka Comment
  UC1198784  Oemleria cerasiformis Joseph P. Tracy 1921-3-13 5420 Humboldt Alton; Northern Coast Region 30 Comment
  HSC23225  Oenanthe sarmentosa Thomas O. Erickson 1971-10-28 1 Humboldt Luffenholtz Beach off Hwy. 101 N of Moonstone Comment
  NY233562  Oenothera hookeri subsp. wolfii C. B. Wolf 1934-10-11 6172 Humboldt Roadside along the Redwood Highway, just south of Trinidad. Comment
  UC146162  Olsynium douglasii var. douglasii E. Ethel Tracy 1905-5-1 Humboldt Harris Northern Coast Ranges 609 Comment
  HSC37653  Olsynium douglasii var. douglasii Robert M. Specht, John Rehling 1976-4-25 397 Humboldt 12 mi. E of Bridgeville on Hwy. 36, at SE end of Larabee Valley Comment
  HSC57979  Oreostemma alpigenum var. andersonii G. L. Clifton, Griswold 1979-7-31 11704 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC16684  Orobanche californica subsp. californica Jerry Parker 1968-10-26 205 Humboldt Big Lagoon, dredged sand-spit opposite Sphagnum bog. Comment
  UC1197447  Orobanche californica subsp. californica Joseph P. Tracy 1939-8-6 16398 Humboldt Big Lagoon. Comment
  HSC39391  Orobanche fasciculata D. E. Anderson, J. P. Smith 1971-7-6 - 1274 Humboldt Horse Mtn. Comment
  CAS-BOT-BC500261  Orobanche uniflora subsp. occidentalis Doris K. Kildale 1927-5-20 3216 Humboldt Bug Creek 792 Comment
  HSC54021  Orthilia secunda Griswold, Butler 1979-7-12 7180 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC55229  Orthilia secunda G. L. Clifton, Griswold 1979-8-2 12430 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1197574  Orthilia secunda Joseph P. Tracy 1932-7-16 10621 Humboldt Trinity Summit bear Corral Prairie 1584 Comment
  HSC100676  Orthocarpus faucibarbatus Carl C. Marshall Apr 1886 170 Humboldt Fields near bay. Comment
  HSC82101  Osmorhiza berteroi Thomas W. Nelson, Jane P. Nelson 1980-5-25 5267 Humboldt Along road from Dinsmore to Anderson Crossing- McKeown Ranch Rd.- 0.5 mi. NW of McKeown house 823 Comment
  UC1476963  Osmorhiza berteroi Porter P. Lowry, II 1977-6-30 795 Humboldt Lady Bird Johnson Cave Redwood National Park (Viewpoint) Comment
  UC314578  Osmorhiza occidentalis Joseph P. Tracy 1926-5-15 7474 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC22861  Osmorhiza purpurea D. E. Anderson 1965-5-1 3562 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC16718  Oxalis articulata subsp. rubra David K. Smith 1968-11-20 70 Humboldt At jct. of Old Arcata Rd. and Jacoby Creek Rd. Comment
  JEPS43158  Oxalis corniculata Lincoln Constance 1934-5-29 719 Humboldt upper Look Prairie; South Fork of Eel River, Bull Creek Region 365 Comment
  CHSC1175  Oxalis oregana M. Underhill 1952-7-12 Humboldt 3 Comment
  CSUSB850  Oxalis oregana Keith Thompson 1972-3-27 Humboldt Maple Cr. 853 Comment
  HSC27853  Oxalis oregana Clifton Raymond Chesbrough 1973-6-19 59 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  UC726372  Oxalis oregana A. A. Heller 1923-7-8 13770 Humboldt near Pepperwood Comment
  UCR179287  Oxalis oregana R. G. Swinney 1968-3-8 216 Humboldt Arcata 152 Comment
  HSC55133  Oxalis trilliifolia G. L. Clifton, Griswold 1979-8-1 11967 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  JEPS109970  Oxalis trilliifolia D. W. Taylor 2004-6-24 19139 Humboldt Head of Madden Creek, Ammon Ridge, seepage area along Forest Road 5N15 0.4 miles W of the junction with Forest Road 5N01. Comment
  CHSC414  Packera bolanderi var. bolanderi M. Underhill 1952-7-12 Humboldt 121 Comment
  UC1145222  Panicum acuminatum var. acuminatum Joseph P. Tracy 1937-8-7 15621 Humboldt e Korbel (hilltops on Russ Ranch); Bald Mountain, Russ Ranch 914 Comment
  UC207819  Panicum acuminatum var. acuminatum Joseph P. Tracy 1918-7-5 5014 Humboldt White Thorn Valley; Northern Coast Ranges, White Thorn Valley 304 Comment
  RSA10050  Panicum capillare Joseph P. Tracy 1930-10-12 9207 Humboldt Eel River, Alton to Fortuna Comment
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Oct 2 2011
  UC584130  Parentucellia viscosa David D. Keck and J. Clausen 1935-6-16 3395 Humboldt Mouth of Little River Comment
  UCD123252  Parentucellia viscosa Linda M. Barker 1976-7-5 1640 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  HSC72425  Parentucellia viscosa J. P. Smith 1970-6-7 3812 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  HSC45648  Pedicularis densiflora Diane L. Reed 1978-4-22 14 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  RSA151842  Pedicularis racemosa Francia Chisaki, H. K. Sharsmith 1959-8-22 4754 Humboldt At Happy Camp adjacent to Douglas Fir Forest. Just over Trinity County line. 915 Comment
  HSC73582  Pellaea brachyptera Gail Newton 1980-7-14 1489 Humboldt Near Last Chance Ridge. 1219 Comment
  SEINET3873313  Pellaea mucronata subsp. mucronata Thomas Nelson, James Nelson 1976-5-30 2612 Humboldt Mckeown Ranch north of Dinsmore.; 0 Comment
  CHSC63423  Penstemon anguineus Vernon H. Oswald 1994-6-29 6362 Humboldt Titlow Hill Rd. (Forest Rd. 1) 10.8 mi S of Hwy. 299, 0.6 mi S of Friday Ridge Rd., S of Willow Creek. 1548 Comment
  JEPS7210  Penstemon anguineus Joseph P. Tracy Jul 16 1930-Jul 19 1930 8918 Humboldt near McKay Camp (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC54203  Penstemon deustus Terry Griswold, Marvin Butler 1979-7-12 7243 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC98095  Penstemon laetus subsp. sagittatus Cara Witte 2007-7-3 417 Humboldt Along National Forest 1. 1/4 mile north of Road V. 1268 Comment
  JEPS11631  Penstemon laetus var. sagittatus Joseph P. Tracy 1933-7-25 12827 Humboldt Horse Mountain 1432 Comment
  NY604551  Penstemon laetus var. sagittatus J. P. Tracy 1933-7-25 12827 Humboldt Horse Mountain 1432.6 Comment
  NY604545  Penstemon laetus var. sagittatus F. W. Pennell 1940-7-7 26094 Humboldt Grouse Mountain, west of Salyer 1463.0 Comment
  HSC56119  Penstemon newberryi subsp. berryi Gilbert Muth 1979-8-1 11894 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  NY130492  Penstemon rattanii V. Rattan 06 1879 58 Humboldt 792.5 Comment
  UC205464  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1920-8-29 5392 Humboldt Dows Prairie Northern Coast Ranges 60 Comment
  JEPS147  Perideridia kelloggii W. L. Jepson 1936-8-13 17896 Humboldt n Garberville; Tuttle Ranch Comment
  HSC24009  Persicaria maculosa R. A. Vanbianchi 1971-9-10 85 Humboldt Along Fiedbrook Rd. .5 mi. from jct. with Hwy. 299 Comment
  SBBG8658  Petasites frigidus var. palmatus H. and M. Dearing 1933-5-16 1927 Humboldt near Weott Comment
  SEINET11809912  Petasites palmatus J. P. Tracy 1947-1 17670 Humboldt Van Duzen River, near Grizzly Creek 91 Comment
  BLMAR423  Phacelia bolanderi Jennifer Wheeler 2007-9-5 423 Humboldt Red Mountain, oil drum road near culvert 1219 Comment
  SEINET12335252  Phacelia californica F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -303 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  BLMAR698  Phacelia ciliata Jennifer Wheeler 2011-6-15 698 Humboldt Lacks Creek, Pine Ridge Road 1097 Comment
  UC673228  Phacelia heterophylla subsp. virgata Lincoln Constance and Reed C. Rollins 1942-5-11 2876 Humboldt 5 mi s Hoopa; North Coast Ranges, Hoopa Valley 121 Comment
  RSA134090  Phacelia nemoralis subsp. oregonensis L. R. Heckard 1952-5-13 275 Humboldt Above the South Fork of the Eel River, about w miles S of the Humboldt County line. Redwood and Madrone area along U.S. 101. Comment
  CAS-BOT-BC76557  Philadelphus lewisii Joseph P. Tracy 1938-6-9 15872 Humboldt Dobbyin Creek 152 Comment
  UC56721  Philadelphus lewisii Harley P. Chandler June, 1901 1333 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  RSA0046936  Philadelphus lewisii Lyman Benson 1928-7-10 397 Humboldt Hills by Humboldt Bay, Fortuna. Mouth of Eel River. 30 Comment
  SEINET202724  Philadelphus lewisii subsp. californicus Joseph P. Tracy 1950-6-18 18853 Humboldt Along Redwood Creek, two miles west of Briceland. Comment
  UC52674  Phlox adsurgens P. E. Goddard 1901-7-8 31 Humboldt Hupa Comment
  RSA256575  Phlox adsurgens J. O. Sawyer 1970-6-24 2262 Humboldt S of Mill Creek Gap. F.S. Road 10N02. 1433 Comment
  HSC41243  Phlox diffusa Brad Klipfel 1974-5-27 385 Humboldt Horse Mtn. Comment
  HSC17159  Phlox diffusa D. E. Anderson 1965-4-24 3529 Humboldt Horse Mtn. 1524 Comment
  JEPS71120  Phlox gracilis Joseph P. Tracy 1930-5-4 8691 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  CAS-BOT-BC60608  Phoenicaulis cheiranthoides Thomas W. Nelson; James L. Nelson 1980-6-10 s.n. Humboldt Along Swayback Ridge 4-wheel drive road ca. 2.5 miles north of junction with Forest Service Road 1S07. 1463 Comment
  UC526853  Phragmites australis Joseph P. Tracy 1934-6-18 13226 Humboldt at Railroad Station Eureka; Northern Coast Ranges, Eureka 0 Comment
  CHSC2362  Phyllospadix scouleri M. Anthony 1960-5-14 Humboldt Near Arcata. Comment
  HSC62753  Phyllospadix scouleri J. M. DiTomaso 1979-4-21 900 Humboldt Elks Head near Trinidad Comment
  UC1103511  Phyllospadix torreyi Joseph P. Tracy 1917-5-30 4812 Humboldt ocean beach opposite Dows Prairie (probably derived from rocky shores n of Little River); Northern Coast Ranges Comment
  CAS-BOT-BC140580  Physocarpus capitatus Thomas Nelson; Linda Barker 1977-6-3 3387 Humboldt On flood plain of Mad River at south end of Mad River Bridge 53 Comment
  UC666856  Physocarpus capitatus Joseph P. Tracy 1935-6-23 13990 Humboldt French Camp Ridge 1066 Comment
  UCSB2830  Physocarpus capitatus Phillips, Priscilla 1958-6-9 Humboldt Biship Pina Lodge, 2 mi. n. of Trinidad Comment
  CAS-BOT-BC73443  Picea sitchensis Doris K. Kildale 1927-5-14 3201 Humboldt Big Lagoon Comment
  CAS-BOT-BC78202  Picea sitchensis Carl B. Wolf 1927-8-29 1202 Humboldt 7 mi. s. of Ferndale & Capetown, Bear River Ridge, [Mt.Glen] Mt. Glen Comment
  UCR48598  Picris echioides R. D. Goeden, Don W. Ricker 1987-9-2 870902- 12 Humboldt Loleta, along Cannibal Road 8 Comment
  CAS-BOT-BC73406  Pinus Doris Kildale Gillespie 1931-6-7 10587 Humboldt South Fork Mt., Blake Lookout. 1726 Comment
  UCD134418  Pinus contorta var. contorta Linda M. Barker 1976-7-5 1641 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  HSC26813  Pinus jeffreyi J. O. Sawyer 1973-3-12 2477 Humboldt SE of Kerr Peak on Manhart Ranch, Bulk Collection # 44 457 Comment
  HSC44350  Pinus jeffreyi Brad Klipfel 1974-7-11 694 Humboldt Horse Mtn. Comment
  HSC72797  Pinus monticola Gail Newton 1980-6-17 206 Humboldt Near Onion Mtn. 1341 Comment
  CAS-BOT-BC79029  Pinus ponderosa Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1600428  Pinus ponderosa Mrs. M. H. Manning 1900-1-1 Humboldt near Hupa Comment
  UC14936  Piperia elegans J. P. Tracy 1901-8-7 1253 Humboldt opposite Eureka; Samoa Comment
  UC1196428  Piperia transversa Joseph P. Tracy 1937-7-11 15419 Humboldt Garberville 152 Comment
  SEINET12075193  Piperia unalascensis H. P. Chandler 1901-1 1385 Humboldt North Coast Ranges, Hupa [Hoopa Valley] Indian Reservation 305 Comment
  UC526820  Plagiobothrys reticulatus Joseph P. Tracy 1933-5-20 12244 Humboldt Mattole Valley near Petrolia; Northern Coast Ranges, Mattole Valley 30 Comment
  UC582611  Plagiobothrys reticulatus Joseph P. Tracy 1936-6-5 14857 Humboldt 6 mi se Arcata (Fickle Hill); Fickle Hill 609 Comment
  UC708087  Plagiobothrys reticulatus C. V. Piper 1921-5-22 5011 Humboldt Eureka Comment
  UC1222214  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-15 17142 Humboldt Miranda South Fork Eel River, Miranda 121 Comment
  UC552845  Plagiobothrys reticulatus Joseph P. Tracy 1935-6-22 13957 Humboldt Holmes Flat North Coast Ranges, Holmes Flat 60 Comment
  JEPS60975  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1935-5-30 13916 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS60996  Plagiobothrys reticulatus var. rossianorum Joseph P. Tracy 1935-5-25 13860 Humboldt Fort Seward North Coast Ranges 106 Comment
  HSC55109  Plantago lanceolata G. L. Clifton 1979-7-31 11853 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC16843  Plantago lanceolata N. R. Waite 1965-5-19 51 Humboldt W edge of Humboldt State University campus. Comment
  HSC67528  Plantago lanceolata J. P. Smith, Steve Selva 1970-6-14 3838 Humboldt Along Hwy. 96 at Whitmore Creek. 152 Comment
  RSA247394  Plantago lanceolata Gary D. Wallace 1966-9-12 706 Humboldt East of Arcata near Willow Creek along Hwy 299. Comment
  HSC16832  Plantago subnuda Norman H. Moe 1962-5-17 Humboldt Lanphere's Place, next to Mad River Slough Comment
  HSC55142  Platanthera dilatata var. leucostachys G. L. Clifton, Griswold 1979-8-1 12029 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC97555  Platanthera dilatata var. leucostachys Cara Witte 2007-6-1 174 Humboldt Along Forest Service 5N10. 1.5 miles east of intersection with National Forest 1. 1365 Comment
  UC146095  Platystemon californicus Joseph P. Tracy 1908-6-9 2656 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC169004  Plectritis brachystemon Joseph P. Tracy 1911-7-7 3381 1/2 Humboldt 3 mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  HSC35030  Plectritis congesta Thomas W. Nelson, James Nelson 1975-5-24 1842 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UCSC000724  Plectritis congesta var. congesta S. C. Dyal 1938-6-11 651 Humboldt Moist places beside road east of Eureka Comment
  UC1258213  Pleuropogon refractus Paul But 1975-6-1 P 13 Humboldt about 10 mi n of Orick; Prairie Creek Redwood State Park Comment
  CAS-BOT-BC244360  Poa annua Henry M. Pollard 1987-8-30 s.n. Humboldt North Klamath River road near Redcap Creek, Orleans region Comment
  HSC26358  Poa annua T. O. Osborne 1970-6-18 41 Humboldt Green Rock, 1-5/8 mi. N, 3/4 mi. W of Trinidad Lighthouse. Comment
  HSC73731  Poa bolanderi M. A. Baker 1980-7-19 3009 Humboldt Near Bret Hole. 1814 Comment
  HSC10685  Poa confinis Norman H. Moe 1962-5-17 Humboldt Lanphere's Place. Comment
  HSC10696  Poa douglasii J. W. Johnson 1961-8-17 1028 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  UC589894  Poa douglasii H. S. Yates 1936-6-18 5725 Humboldt near mouth of Little River 4 Comment
  RSA10047  Poa howellii Joseph P. Tracy 1929-7-4 8619 Humboldt French Camp Ridge 1067 Comment
  UC249671  Poa howellii Joseph P. Tracy 1922-4-30 6014 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UCD91113  Poa howellii Don Hagar 1956-5-24 s.n. Humboldt Brush Mountain. 5 to 6 miles southwest of Willow Creek, eastern part of county. Comment
  RSA183517  Poa kelloggii H. S. Logsdon 1964-5-10 7 Humboldt 4.0 miles N.E. of Orick at Boye's Prairie Comment
  UC525619  Poa kelloggii Joseph P. Tracy 1926-5-22 7504 Humboldt Prairie Creek; Northern Coast Ranges 152 Comment
  SEINET10660267  Poa kelloggii Harley P. Chandler Chandler 1183 Humboldt North Coast Ranges, California. 30 Comment
  UCD91539  Poa macrantha Linda M. Barker 1976-6-22 1625 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA54930  Poa macrantha W. A. Silveus 1938-7-10 6912 Humboldt North of Eureka Comment
  HSC10770  Poa pratensis R. D. Zortman 1963-5-5 32 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  HSC101481  Poa pratensis subsp. pratensis J. P. Smith 2010-5-29 12888 Humboldt Eureka. Abandoned railroad right-of-way along Railroad Ave., just south of its junction with West 14th. 2 Comment
  UC589883  Poa pratensis subsp. pratensis H. S. Yates 1936-6-17 5703 Humboldt lower nw slope Buck Mt; South Fork Peak Quadrangle 792 Comment
  HSC98797  Poa secunda subsp. secunda Cara Witte 2008-6-11 712 Humboldt National Forest Road 5N10. 2.5 miles south of intersection with Forest Service Road 5N41. 1303 Comment
  UC1256295  Poa secunda subsp. secunda R. K. Gierisch and D. H. Esplin 1969-7-1 3537 Humboldt Grouse Mt; Six Rivers Forest/Experimental Area Comment
  UC525669  Poa secunda subsp. secunda Joseph P. Tracy 1927-4-2 7881 Humboldt facing S Fork of Eel River Phillipsville; Northern Coast Ranges 121 Comment
  UCD91735  Poa secunda subsp. secunda A. H. Murphy 1951-4-9 s.n. Humboldt Ft. Baker Ranch along road between Iron Gate and Dairy Ridge. 304 Comment
  UCD92117  Poa trivialis H. S. Yates 1936-6-16 6582 Humboldt near Bayside. Comment
  BLMAR18  Poa unilateralis Brad Barr June, 1982 18 Humboldt King range, Barksdale Table Comment
  RSA10121  Poa unilateralis Joseph P. Tracy 1927-6-8 8113 Humboldt Trinidad 61 Comment
  UCD92123  Poa unilateralis A. A. Beetle 1940-5-19 3612 Humboldt near H.E. Parks Reservoir, California coast. Comment
  UC153997  Pogogyne serpylloides Joseph P. Tracy 1908-6-7 2622 Humboldt at Butter Valley on Mad River 152 Comment
  UC1988936  Pogogyne zizyphoroides Joseph P. Tracy 1938-7-5 16005 Humboldt Carlotta, five miles east of town, open flat by old Strong's District School House 45 Comment
  HSC35200  Polycarpon tetraphyllum Thomas W. Nelson 1975-11-3 2039 Humboldt 7th and H Sts., Eureka Comment
  HSC54507  Polygala cornuta Overton, Butler 1979-7-23 9408 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  SEINET10537775  Polygonum Mary Susan Taylor 1990-8-22 Taylor 6081 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  HSC38370  Polygonum aviculare Peter Sorensen 1976-8-8 Humboldt King Salmon Comment
  HSC17469  Polygonum aviculare D. E. Anderson 1961-9-13 1822 Humboldt Comment
  UC1198092  Polygonum californicum Joseph P. Tracy 1929-8-18 8657 Humboldt opposite Buck Mountain; Van Duzen River, Dinsmore's 762 Comment
  UC1198087  Polygonum convolvulus Joseph P. Tracy 1947-8-10 17881 Humboldt Eureka 30 Comment
  UC1225796  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1947-8-24 17922 Humboldt on Box Camp Trail Trinity Summit 1676 Comment
  UC672963  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1933-8-30 13042 A Humboldt Grouse Mountain 1524 Comment
  JEPS79955  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1940-8-25 16707 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC98067  Polygonum douglasii var. douglasii Cara Witte 2007-7-11 508 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  CAS-BOT-BC418615  Polygonum majus Alice Eastwood 1921-7-21 10668 Humboldt Van Duzen River Comment
  HSC45472  Polygonum minimum Thomas W. Nelson, Jane P. Nelson 1978-7-2 4392 Humboldt SE of E peak of the Mount Lassic group 1616 Comment
  UC672943  Polygonum paronychia Joseph P. Tracy 1930-7-21 8890 Humboldt s point of cape (near ocean shore); Cape endocino 3 Comment
  HSC75436  Polygonum parryi J. O. Sawyer 1980-7-18 3592 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC63228  Polypodium californicum M. A. Baker 1978-5-6 468 Humboldt Weitchpec Comment
  HSC1101  Polypodium californicum Paul Shields Apr 1955 Humboldt 5 mi. N of Arcata Comment
  RSA46707  Polypodium glycyrrhiza Doris K. Kildale 1929-3-10 6942 Humboldt Bug Creek Comment
  SEINET200790 Image available Polypodium glycyrrhiza Joseph P. Tracy 1936-3-8 14775 Humboldt Miranda; oak groved along South Fork of Eel River Comment
  CAS-BOT-BC76839  Polypodium glycyrrhiza M. S. Taylor; L. Ahart; J. Jokerst 1982-1-17 5215 Humboldt Vicinity of mouth of Flag Canyon. On top of North Table Mt., ca. 8 mi. N of Oroville. 373 Comment
  UC1189555  Polypodium glycyrrhiza Rolla M. and Alice F. Tryon 1961-11-22 5560 Humboldt nw of Weott; s fork Eel River Comment
  UC503066  Polypodium glycyrrhiza Joseph P. Tracy 1931-3-26 9294 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  POM232318  Polypodium scouleri I. L. Wiggins 1930-7-11 4686 Humboldt Near Samoa Comment
  RSA85053  Polypodium scouleri F. W. Peirson 1926-7-12 7039 Humboldt Hills north of inlet at Orick Comment
  SEINET6166118  Polypodium scouleri W. D. Billings 1940-6-22 1345 Humboldt 1/2 mile north of Trinidad Comment
  UC1145086  Polypogon monspeliensis Joseph P. Tracy 1938-7-11 16049 Humboldt near Samoa; Humboldt Bay, near Samoa 6 Comment
  UC519315  Polystichum Joseph P. Tracy 1933-10-15 13101 Humboldt along S Fork Eel River Miranda; North Coast Ranges 91 Comment
  UC1440058  Polystichum californicum Danin & H. G. Baker 1960-8-13 597 Humboldt ca. 2 mi n Dyerville (High Rock, along Ave. of Giants, w side Eel River) Comment
  UC503068  Polystichum imbricans subsp. imbricans Joseph P. Tracy Jul 16 1930-Jul 19 1930 9089 Humboldt near McKay Camp S. Fork Mt.; Northern Coast Ranges 1676 Comment
  CAS-BOT-BC76662  Polystichum munitum Ira L. Wiggins 1932-6-18 5871 Humboldt On hillside at mouth of Little River. Comment
  HSC77920  Polystichum munitum L. P. Janeway, Paul Wilson 1984-5-25 817 Humboldt On N Spit of Humboldt Bay on BLM lands near the Coast Guard Station 5 Comment
  RSA66879  Polystichum munitum P. A. Munz 1951-7-15 16551 Humboldt Racoon Creek. 305 Comment
  NY42919  Populus balsamifera subsp. trichocarpa J. B. Walker 1995-4-26 1388 Humboldt Six Rivers National Forest, Hwy 36, 2km W of Cobbs 800 Comment
  CAS-BOT-BC102908  Populus trichocarpa Doris K. Kildale; L. B. Kildale 1930-4-13 9571 Humboldt Bridgeville 289 Comment
  HSC7226  Populus trichocarpa R. E. Thill 1965-4-24 18 Humboldt 100 yds. from Town & Country Trailer Park beside Mad River Comment
  UC1173732  Populus trichocarpa Joseph P. Tracy 1939-4-18 16211 Humboldt on South Fork of Eel River between Miranda and Redway Sylvandale; North Coast Ranges, on South Fork of Eel River 91 Comment
  UC176692  Populus trichocarpa Joseph P. Tracy 1913-6-22 4261 A Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC672880  Potamogeton foliosus Joseph P. Tracy 1934-8-14 Humboldt South Fork of Eel River (midway between Miranda and Garberville) 91 Comment
  HSC17758  Potamogeton nodosus R. L. Jarvis 1962-4-29 35 Humboldt Turner draw, 3 mi. N of Arcata on Hwy. 101 15 Comment
  HSC18733  Potentilla anserina subsp. pacifica W. R. Brigham 1962-5-19 13 Humboldt S of Big Lagoon. Comment
  JEPS24329  Potentilla anserina subsp. pacifica Lincoln Constance 1934-6-18 903 Humboldt near South Fork R.R. Station and P.O. (border of North Dyerville Flat); South Fork Eel River, Bull Creek Region Comment
  HSC99437  Potentilla drummondii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 86 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 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
  RSA12434  Potentilla gracilis Carl B. Wolf 1934-7-2 5859 Humboldt 5.5 miles from Bald Mt. on road to Snow Camp 915 Comment
  HSC44544  Potentilla gracilis var. fastigiata Brad Klipfel 1973-7-15 163 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC99393  Prosartes hookeri K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 42 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC15471  Prosartes smithii D. E. Anderson 1962-3-24 1946 Humboldt Along Turner Rd. Comment
  JEPS62494  Prunella vulgaris var. lanceolata Lincoln Constance 1934-5-24 641 Humboldt South Fork Eel River Bull Creek Region; , Bull Creek Region 121 Comment
  UC162689  Prunella vulgaris var. lanceolata Joseph P. Tracy 1911-7-7 3380 Humboldt three mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges, nw jct Willow Cr with Trinity River 914 Comment
  UC1288490  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-12-28 687 Humboldt n Weott (Avenue of the Giants, Humboldt Redwoods State Park); Humboldt Redwoods State Park, Avenue of the Giants Comment
  CAS-BOT-BC159976  Prunus emarginata Doris K. Kildale 1927-5-14 3192 Humboldt Big Lagoon Comment
  CAS-BOT-BC159978  Prunus emarginata Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  CAS-BOT-BC159985  Prunus emarginata L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek road Comment
  HSC71668  Prunus emarginata Gail Newton 1980-6-24 552 Humboldt Near Ladder Rock 1500 Comment
  UC1198778  Prunus subcordata Joseph P. Tracy 1924-10-5 6911 Humboldt Trinity River Valley near the South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  CAS-BOT-BC154785  Prunus virginiana var. demissa Mrs. R. M. Austin 1894-6-1 s.n. Humboldt Willow Creek Valley Comment
  UC492198  Prunus virginiana var. demissa Joseph P. Tracy 1927-5-14 8027 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC5694  Pseudognaphalium ramosissimum Jerry Parker 1968-11-19 244 Humboldt Clam Beach, 1/4 mi. S of Strawberry Cr. Comment
  BLMAR110  Pseudognaphalium stramineum Jennifer Anthony-Wheeler 1994-9-8 110 Humboldt Samoa dunes, growing atop a knoll/dune with I the Samoa Pen. Rare plant area 15 Comment
  BLMAR704  Pseudognaphalium stramineum Jennifer Anthony-Wheeler 1994-9-8 704 Humboldt Samoa dunes, growing atop a knoll/dune with I the Samoa Pen. Rare plant area 15 Comment
  HSC54524  Pseudotsuga menziesii var. menziesii Overton, Butler 1979-7-23 9458 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  OBI36577  Pseudotsuga menziesii var. menziesii David J. Keil 1983-7-1 17264 Humboldt Ca. 8 mi W of jctn US101 along Bull Crk Flats rd Comment
  SBBG360  Pseudotsuga menziesii var. menziesii M. J. Cody 1938-7-10 Humboldt near Trinidad Comment
  BLMAR157  Pteridium aquilinum var. pubescens Donald Hazlett 1994-6-7 157 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC36260  Pteridium aquilinum var. pubescens John Rehling 1974-8-19 20 Humboldt Comment
  HSC72628  Pteridium aquilinum var. pubescens J. P. Smith 1977-7-3 9255 Humboldt Six Rivers National Forest, along FS Rd. 11N17, above Blue Lake 762 Comment
  UC672932  Pterostegia drymarioides Joseph P. Tracy 1933-5-20 12226 Humboldt s point of cape; Cape Mendocino 3 Comment
  HSC10866  Puccinellia nutkaensis R. H. Berg 1963-4-11 25 Humboldt Arcata Comment
  HSC41263  Pyrola aphylla Brad Klipfel 1974-7-23 456 Humboldt Horse Mtn. Comment
  JEPS58845  Pyrola aphylla W. L. Jepson 1902-7-13 2023 Humboldt Willow Creek to Hupa Comment
  HSC76596  Pyrola asarifolia subsp. asarifolia Teresa Prendusi 1981-7-9 201 Humboldt Near Cedar Camp. 1268 Comment
  HSC99518  Pyrola picta K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 181 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1225818  Pyrola picta Joseph P. Tracy 1948-8-15 18148 Humboldt Trinity Summit, on ridge 2 miles east of Grove's Prairie 1524 Comment
  UC153965  Pyrola picta Joseph P. Tracy 1909-7-31 3047 Humboldt Kneeland Prairie 762 Comment
  BLMAR160  Quercus chrysolepis Donald Hazlett 1994-6-7 160 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC62627  Quercus chrysolepis Doris K. Kildale 1926-12-19 2879 Humboldt Briceland Bridge, 1/2 mile west of Garberville 114 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
  UC1196532  Quercus chrysolepis Joseph P. Tracy 1916-9-5 4775 Humboldt 4 mi above Mouth of South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  UC667989  Quercus garryana Joseph P. Tracy 1935-7-14 14090 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  CAS-BOT-BC104538  Quercus vacciniifolia D. E. Breedlove 1961-7-4 648 Humboldt 7 miles W of Willow Creek on US 299 521 Comment
  HSC76363  Quercus vacciniifolia Denis Kearns 1981-6-24 18 Humboldt Near Cedar Camp 1219 Comment
  UC162833  Ranunculus californicus J. P. Tracy 1910-5-8 3132 Humboldt Eureka 0 Comment
  UC184237  Ranunculus flammula Joseph P. Tracy 1912-7-21 3786 Humboldt Alton Northern Coast Region 30 Comment
  UC668066  Ranunculus flammula Joseph P. Tracy 1937-5-30 15312 Humboldt shallow pool near Bosworth's; Larrabee Creek 365 Comment
  HSC100618  Ranunculus flammula var. reptans Carl C. Marshall May 1886 200 Humboldt Damp places. Comment
  HSC39443  Ranunculus muricatus Linda M. Barker 1976-4-30 1404 Humboldt 3 mi. W of Arcata Comment
  HSC82522  Ranunculus occidentalis Thomas W. Nelson 1977-6-15 3441 Humboldt Along old road to Horse Mountain ski area. 1372 Comment
  UC1196218  Ranunculus occidentalis J. P. Tracy 1901-5-30 1107 Humboldt Immediate vicinity of Eureka 0 Comment
  UC1368470  Ranunculus occidentalis R. K. Gierisch and D. H. Esplin 1969-7-1 3529 Humboldt Grouse Mtn. Six Rivers National Forest Comment
  UC162862  Ranunculus occidentalis Joseph P. Tracy 1908-6-9 2671 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC18172  Ranunculus occidentalis var. occidentalis J. Mustain 1963-4-27 40 Humboldt Big Lagoon Park Comment
  HSC99092  Ranunculus occidentalis var. occidentalis Cara Witte 2008-7-2 824 Humboldt Board Camp Mountain. Forest Service Rd. 4N38. Approximately 1 mile south of 4N38 and National Forest 1 intersection. 1416 Comment
  UC535740  Ranunculus repens Eleanor Armstrong 1170 Humboldt Richardson Grove Comment
  UC502929  Ranunculus uncinatus Joseph P. Tracy 1932-7-10 10394 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC40639  Ranunculus uncinatus var. parviflorus J. P. Smith 1973-5-26 6858 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC26768  Raphanus raphanistrum Thomas W. Nelson 1970-12-5 317 Humboldt Eureka, 3300 block of Williams St. Comment
  HSC64069  Raphanus sativus J. P. Smith 1971-10-6 4978 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC6888  Raphanus sativus W. F. Nickel 1965-4-3 Humboldt 1 mi. N of Orick on Hwy. 101 Comment
  RSA7790  Rhamnus californica Carl B. Wolf 1927-8-30 1249 Humboldt 3 miles S of Thorn3 miles S of Tom's Place Comment
  RSA171022  Rhamnus californica subsp. occidentalis Robert F. Thorne 1957-9-2 19008 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC630477  Rhamnus purshiana H. E. and S. T. Parks 1935-5-1 5541 Humboldt Spruce Cove Trinidad 64 Comment
  HSC23118  Rhododendron columbianum Norman Dennis 1965-6-3 143 Humboldt Big Lagoon County Park, SW corner of Big Lagoon Comment
  RSA257021  Rhododendron macrophyllum Gary D. Wallace, Larry E. DeBuhr, G. Ansley Wallace 1972-5-22 1070 Humboldt Northwest of Orick along southern boundary of Prairie Ck, Redwoods St. Pk. along Davison Rd. toward Gold Bluff Beach. Comment
  UC614839  Rhododendron macrophyllum Beryl O. Schreiber 1934-6-5 1136 Humboldt 20 mi e of Blue Lake (road to Redding) Comment
  CAS-BOT-BC433138  Ribes Doris Kildale 1931-5-10 10579 Humboldt Snow Camp Comment
  HSC40828  Ribes binominatum Thomas W. Nelson, Jane P. Nelson 1976-7-26 3040 Humboldt Along ridge NW of Lassic Peak. 1707 Comment
  CAS-BOT-BC92883  Ribes bracteosum Alice Eastwood 1907-4-21 17 Humboldt Trinidad. 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
  UC667071  Ribes lacustre Joseph P. Tracy with Dr. F. W. Pennell 1940-7-7 16664 Humboldt Friday Ridge road Grouse Mt. 1371 Comment
  SBBG26907  Ribes laxiflorum H. E. and S. T. Parks 1937-6-4 24004 Humboldt Prairie Crk at Valley Green Comment
  CAS-BOT-BC173359  Ribes lobbii Peter H. Raven; R. Snow 1958-7-20 11632 Humboldt 12.8 miles south-west of United States 299 on Friday Ridge Road to Grouse Mountain, 0.2 miles north-east of Titlow Hill road junction Comment
  HSC103226  Ribes lobbii Jade Paget-Seekins 2010-6-23 24 Humboldt Horse Mountain. Slightly less than 10 miles up Titlow Hill Road, on Forest Route 1. Near 'Road Narrows' sign. 1558 Comment
  JEPS49356  Ribes lobbii W. L. Jepson 1902-7-16 2038 Humboldt Trinity Summit 2133 Comment
  UC492232  Ribes lobbii Joseph P. Tracy 1927-5-15 8065 Humboldt w Hoopa (near summit on Road to Bair's); Northern Coast Ranges, Hoopa Mountain 1066 Comment
  RSA0021632  Ribes malvaceum L. R. Abrams, R. C. Bacigalupi 1922-6-25 8293 Humboldt Bluffs north of Big Lagoon. Comment
  HSC58106  Ribes marshallii G. L. Clifton, Griswold 1979-8-1 12041 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC1198936  Ribes marshallii Joseph P. Tracy 1942-6-23 17261 Humboldt open ridges near Water-dog Lakes; Trinity Summit 1828 Comment
  CSUSB1881  Ribes menziesii Keith Thompson 1972-3-27 Humboldt Maple Cr. 853 Comment
  UC1198928  Ribes menziesii Joseph P. Tracy 1933-3-12 10920 Humboldt Ferndale North Coast Ranges 30 Comment
  HSC102620  Ribes nevadense M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1607 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  UC492204  Ribes roezlii Joseph P. Tracy 1930-8-3 9144 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Van Duzen River 670 Comment
  UCD102480  Ribes roezlii P. Zinke 1950-8-4 153 Humboldt 2 miles west of Harris Post Office. 853 Comment
  UC1198949  Ribes roezlii var. amictum Joseph P. Tracy 1922-4-2 5985 Humboldt near Carlotta; Northern Coast Ranges, Van Duzen River 60 Comment
  HSC20320  Ribes roezlii var. cruentum D. E. Anderson 1962-5-1 2203 Humboldt 1 mi. W of Hoopa Comment
  HSC70756  Ribes sanguineum R. York 1980-5-17 527 Humboldt Near Le Perron Peak 1066 Comment
  CAS-BOT-BC144683  Ribes sanguineum var. glutinosum Ira L. Wiggins 1930-6-25 4617 Humboldt Sand dunes 2 miles north of Samoa Comment
  CAS-BOT-BC144691  Ribes sanguineum var. glutinosum Doris K. Kildale 1926-6-27 2226 Humboldt Little Van Duzen River. on Bridgeville - Weaverville road 640 Comment
  UC154114  Ribes sanguineum var. glutinosum Joseph P. Tracy 1901-4-26 1051 Humboldt region about Humboldt Bay (Humboldt Hill); Northern Coast Region 0 Comment
  UCSB15627  Ribes sanguineum var. glutinosum Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa; on peninsula; on western side of Humboldt Bay Comment
  RSA0018247  Ribes sanguineum var. glutinosum Lyman Benson 1928-7-10 615 Humboldt Clam Beach, Trinidad. 30 Comment
  HSC56007  Ribes viscosissimum Overton, Butler 1979-7-31 11475 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  UC492213  Ribes viscosissimum Joseph P. Tracy 1932-7-12 10466 Humboldt ridges e of Corral Prairie (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1828 Comment
  RSA0020899  Ribes viscosissimum John H. Thomas 1949-6-13 913 Humboldt Along trail between Le Perron Flat and Whiteys Peak. Six Rivers National Forest. East of town of Orleans. 1372 Comment
  HSC47611  Rigiopappus leptocladus J. P. Smith 1977-4-23 9028 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  UC1239758  Romanzoffia californica Joseph P. Tracy 1946-5-19 17529 Humboldt Kneeland Prairie 762 Comment
  UC14402  Rorippa curvisiliqua Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  UC198651  Rorippa curvisiliqua Joseph P. Tracy 1916-5-31 4693 Humboldt along Eel River from South Fork to Scotia (Holmes Flat); Northern Coast Ranges, along Eel River 60 Comment
  POM275376  Rosa eglanteria Lyman D. Benson 1928-7-10 415 Humboldt Weott Ranger Station. Mtn. Range: Seaward N Coast; Watershed: S Fork Eel River. 61 Comment
  CAS-BOT-BC146490  Rosa gymnocarpa Carl B. Wolf 1927-8-30 1232 Humboldt 2 mi. so. of Petrolia on Matole River near point where road crosses river Comment
  CAS-BOT-BC146491  Rosa gymnocarpa Doris K. Kildale; L. B. Kildale 1930-5-24 9550 Humboldt Hoopa Valley 152 Comment
  UC527562  Rosa gymnocarpa C. B. Wolf 1931-8-30 2376 Humboldt 11 mi above Blue Lake (on Lord Ellis Rd to Willow Creek) 304 Comment
  HSC19626  Rosa gymnocarpa W. R. Rogers 1965-5-15 61 Humboldt Camp Bauer 1/4 mi. Korbel Comment
  HSC98839  Rosa gymnocarpa var. gymnocarpa Cara Witte 2008-6-27 767 Humboldt Along National Forest 1 on Kinsey Ridge. 1.5 mi. NE of intersection with 4N09. 1317 Comment
  UC1281125  Rosa nutkana var. nutkana H. E. McMinn 1937-12-2 3711 Humboldt sea-cliff n Eureka Comment
  UC183614  Rosa nutkana var. nutkana Joseph P. Tracy 1912-10-20 3997 Humboldt Alton Northern Coast Region 30 Comment
  CAS-BOT-BC148346  Rosa pisocarpa Doris K. Kildale 1928-7-1 5307 Humboldt French Camp on orick-Martin's Ferry Road Comment
  HSC100908  Rosa spithamea Carl C. Marshall Jun 1886 306 Humboldt Trail E of Hoopa. Comment
  UCR275123  Rubus armeniacus Charity A. Hartshorn 2016-4-24 15 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  RSA89566  Rubus discolor Philip A. Munz 1954-7-23 19864 Humboldt 5 miles SE of Carlotta Comment
  CAS-BOT-BC148354  Rubus lasiococcus Joseph P. Tracy 1930-7-17 9021 Humboldt South Fork Mountain, near McKay Camp 1676 Comment
  RSA43861  Rubus leucodermis H. M. Pollard 1948-8-9 s.n. Humboldt New [near] Orleans. Comment
  CHSC19737  Rubus parviflorus R. J. Vernimen 1963-5-11 51 Humboldt Clam Beach Lagoons, 10 miles N. of Arcata. Comment
  HSC19659  Rubus parviflorus W. R. Brigham 1962-5-20 15 Humboldt Side of Old Hwy. 101, N of Big Lagoon rd. Comment
  POM117571  Rubus parviflorus var. velutinus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  CAS-BOT-BC156722  Rubus spectabilis Alice Eastwood 1939-3-19 s.n. Humboldt Garden Club of America Grove Comment
  JEPS46230  Rubus spectabilis W. L. Jepson 1934-5-7 16708 Humboldt near Big Tree footbridge (Bull Creek); Bull Creek Comment
  UC1541250  Rubus spectabilis H. E. Parks May 1935 5537 Humboldt Trinidad , Trinidad (Spruce Cove) Comment
  UCSB31471  Rubus spectabilis Clark, Sharon 1978-3-29 Humboldt 119.5 miles on Route 101, 2 miles south of Orick 91 Comment
  HSC32429  Rubus ursinus Linda M. Barker 1974-5-11 173 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC38943  Rubus ursinus Linda M. Barker 1976-6-1 1565 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC96515  Rubus ursinus Gordon Leppig 1998-5-11 762 Humboldt Big Lagoon County Park. 3 Comment
  UCD17616  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 048 Humboldt California. Humboldt County: 12.2 miles north of Ettersburg on road to Honeydew. Comment
  UC1223160  Rudbeckia occidentalis Joseph P. Tracy 1948-9-12 18204 Humboldt meadow at Box Camp; Trinity Summit 1463 Comment
  CAS-BOT-BC421933  Rumex acetosella Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC102053  Rumex acetosella M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 958 Humboldt Forest edge surrounding Patterson Meadows 1566 Comment
  UC146142  Rumex acetosella J. P. Tracy 1906-4-22 2414 Humboldt immediate vicinity Eureka 0 Comment
  UCD81680  Rumex acetosella Chuck Hughes 2009-6-18 100 Humboldt Near Arcata. NE corner of intersection of Old Samoa Road and Pacheco Road. 1 Comment
  UCR45427  Rumex acetosella Kenneth Clark 1980-4-18 602 Humboldt North Coast, Shelter Cove, on access trail to Dead Man's Gulch 52 Comment
  HSC17571  Rumex acetosella D. E. Anderson 1961-9-30 1836 Humboldt Comment
  HSC39614  Rumex acetosella Thomas W. Nelson, Jane P. Nelson 1976-6-15 2718 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  HSC40030  Rumex acetosella Thomas W. Nelson, Jane Nelson 1976-6-22 2876 Humboldt On SW-facing slope at Goat Mtn. lookout 1666 Comment
  HSC70987  Rumex californicus Gail Newton 1980-7-20 1650 Humboldt Near Bell Swamps 1426 Comment
  UC1222605  Rupertia physodes Joseph P. Tracy 1951-7-26 19589 Humboldt extreme head Redwood Creek (n side of mountain); Board Camp Mountain 1541 Comment
  CAS-BOT-BC454099  Ruppia cirrhosa Malcom A. Nobs; S. Galen Smith 1949-8-3 1182 Humboldt Near mouth of the Elk River on Highway 101, ca. 4 miles south of Eureka Comment
  HSC93512  Ruppia cirrhosa Gordon Leppig 1998-6-25 752 Humboldt Hwy. 101 marker 81.60, brackish ditch on E side of Hwy. 2 Comment
  CAS-BOT-BC454157  Ruppia maritima Malcom A. Nobs; S. Galen Smith 1949-8-3 1181 Humboldt Near mouth of the Elk River on Highway 101, ca. 4 miles south of Eureka Comment
  HSC9564  Rytidosperma penicillatum True Hoyle 1967-6-24 26167 Humboldt 20 mi. S of Arcata near Little Salmon Creek on the Marvin Stapp Ranch 46 Comment
  HSC9566  Rytidosperma penicillatum J. P. Tracy 1942-6-28 17267 Humboldt Bald Mountain, at Hungry Hollow 610 Comment
  UCD92343  Rytidosperma penicillatum Ray Evans 1956-7-19 s.n. Humboldt Bear River, 3 miles east of Capetown. Comment
  RSA246919  Salicornia virginica R. F. Thorne, P. Everett 1965-8-7 35205 Humboldt Samoa Peninsula. 0 Comment
  CAS-BOT-BC103454  Salix eastwoodiae Joseph P. Tracy 1932-7-16 10647 Humboldt in McKay Meadow, Trinity Summit 1524 Comment
  CAS-BOT-BC103812  Salix exigua Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01234 Humboldt On floodplain of the Van Duzen River, 1 1/2 miles east of Alton 30 Comment
  SBBG29091  Salix exigua var. hindsiana C. R. Ball, H. Parks, J. Tracy 1932-5-17 1335 Humboldt above Trinity River, 1 mi below bridge on Trinity Hwy 152 Comment
  UC512026  Salix exigua var. hindsiana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1332 Humboldt near bridge on Trinity Hwy. (in ... channel of Trinity R.) 152 Comment
  CAS-BOT-BC104106  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01332 Humboldt channel of Trinity River, near bridge on Trinity Highway 152 Comment
  CAS-BOT-BC104108  Salix hindsiana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01331 Humboldt channel of Trinity River, near bridge on Trinity Highway 152 Comment
  RSA0038361  Salix hindsiana var. leucodendroides Harold E. Parks 1931-8-25 01061 Humboldt Blue Slide, Van Duzen River. 90 Comment
  CAS-BOT-BC107724  Salix hookeriana Alice Eastwood 1923-8-14 12321 Humboldt Samoa Comment
  CAS-BOT-BC107729  Salix hookeriana Harold E. Parks 1931-3-24 912 Humboldt Eel River, Fortuna 10 Comment
  CAS-BOT-BC107768  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1223 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  CHSC9653  Salix hookeriana E. L. Smith 1971-8-18 1024 Humboldt At Manila ca. 4 mi sw of Arcata, on w side of Humboldt Bay opposite Eureka. Comment
  HSC20071  Salix hookeriana J. P. Tracy, H. E. Parks 1931-3-26 904 Humboldt Lower Van Duzen River near Alton Comment
  HSC33076  Salix hookeriana Thomas W. Nelson, Jim Ackerman 1974-5-14 1265 Humboldt Beside old Samoa-Crannell railroad bed adjacent to the Mad River Slough N of Emerson Mill Comment
  JEPS12961  Salix hookeriana Joseph P. Tracy 1931-8-23 9622 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  JEPS14771  Salix hookeriana Joseph P. Tracy 1933-3-19 10924 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  LA208761  Salix hookeriana Harold E. Parks; 1931-3-24 914 Humboldt Fortuna, on banks of Eel River 10.0 Comment
  POM184870  Salix hookeriana H. E. Parks, Susan T. Parks 1932-4-7 1103 Humboldt Little River Lagoon. Trinidad. At sea level. 0 Comment
  POM219324  Salix hookeriana H. E. Parks 1931-5-28 999 Humboldt Little River Lagoon. 0 Comment
  UC1196544  Salix hookeriana Joseph P. Tracy 1935-3-3 13715 Humboldt near mouth Mad R. 6 Comment
  UC1196677  Salix hookeriana Joseph P. Tracy 1927-5-1 7952 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC1222300  Salix hookeriana Joseph P. Tracy 1950-9-10 19366 Humboldt 1 mi inland from Cape Mendocino (1/2 mi s of town, foothills of Cape Ridge); , Cape Ridge 60 Comment
  UC1225775  Salix hookeriana Joseph P. Tracy 1948-4-4 17957 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  UC429548  Salix hookeriana Joseph P. Tracy 1904-7-17 2124 C Humboldt near Hydesville Hydesville; Northern Coast Region 60 Comment
  UC469116  Salix hookeriana Joseph P. Tracy 1927-3-13 7844 Humboldt mouth of Little River; Northern Coast Ranges, Little R. 6 Comment
  UC492344  Salix hookeriana Harold E. and Susan T. Parks 1932-4-10 1103 a Humboldt Little River Lagoon Trinidad Comment
  UC518898  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 4 Humboldt around Eureka Comment
  UC1173602  Salix laevigata Joseph P. Tracy 1935-6-22 13962 Humboldt at mouth of Larrabee Creek Eel River 45 Comment
  UC1173603  Salix laevigata Joseph P. Tracy 1935-5-25 13886 Humboldt Dobbyn Creek 152 Comment
  UC275503  Salix laevigata Joseph P. Tracy 1925-11-1 7301 Humboldt Shively, along Eel R. from S. Fork to Scotia Northern Coast Ranges, Eel R., Shively 60 Comment
  HSC48060  Salix lasiandra Thomas W. Nelson 1978-4-23 3888 Humboldt Junction of Copher and Samoa Rds., N of Samoa Comment
  CAS-BOT-BC125224  Salix lasiandra var. lasiandra Harold E. Parks; Susan T. Parks 1932-4-10 01101 Humboldt Little River Lagoon, Trinidad, at sea level Comment
  CAS-BOT-BC128200  Salix lasiandra var. lasiandra Henry M. Pollard 1945-9-1 s.n. Humboldt Camp Creek, Klamath River Canyon Comment
  CAS-BOT-BC107587  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1321 Humboldt On banks of Redwood Creek, at Berry's, on Trinity Highway 274 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-BC107599  Salix lasiolepis Joseph P. Tracy 1933-4-2 10960 Humboldt On slope of Berry's Mountain, on Trinity Highway, east of Redwood Creek 762 Comment
  CAS-BOT-BC107618  Salix lasiolepis Harold E. Parks 1931-3-31 9328 Humboldt Redwood Creek, at Berry's 274 Comment
  HSC98772  Salix lasiolepis Cara Witte 2008-7-7 842 Humboldt National Forest Road 5N10. 2 miles south of intersection with Friday Ridge Road. Near waterhole sign. 1224 Comment
  HSC99836  Salix lasiolepis Jimerson, J. Pageau 1979-6-22 601 Humboldt Near Bee Mtn., close to the town of Orleans 655 Comment
  JEPS12917  Salix lasiolepis Joseph P. Tracy 1927-8-7 8305 Humboldt Redwood Creek at Berry's; Northern Coast Ranges 274 Comment
  POM161056  Salix lasiolepis Joseph P. Tracy 1926-9-19 7804 Humboldt Valley of S Yager Creek 762 Comment
  UC1196628  Salix lasiolepis Joseph P. Tracy 1937-4-11 15260 Humboldt Camp Grant Eel River (along river, 2-5 mi e of the South Fork) 45 Comment
  UC1196649  Salix lasiolepis Joseph P. Tracy 1933-11-29 13129 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC1225925  Salix lasiolepis Joseph P. Tracy 1942-7-26 17296 Humboldt near Redwood House; South Yager Creek 609 Comment
  UC469429  Salix lasiolepis Joseph P. Tracy 1931-9-7 9643 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC490467  Salix lasiolepis Joseph P. Tracy 1932-9-5 10768 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  UC504031  Salix lasiolepis C. R. Ball, H. E. Parks, and J. P. Tracy 1932-5-17 1338 Humboldt near pond at Willow Creek (Graham Ranch) near junction with Trinity River Comment
  UC506344  Salix lasiolepis Joseph P. Tracy 1933-3-19 10932 Humboldt Blue Slide, on Van Duzen River 228 Comment
  UC519330  Salix lasiolepis Joseph P. Tracy 1933-5-20 12266 Humboldt Mattole River, near Petrolia 15 Comment
  CAS-BOT-BC107294  Salix lasiolepis var. bigelovii Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01239 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  CAS-BOT-BC107299  Salix lasiolepis var. bigelovii Harold E. Parks; Joseph P. Tracy 1931-5-17 0976 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  RSA475257  Salix lucida subsp. lasiandra Lyman D. Benson 1929-7-15 1809 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  CAS-BOT-BC125636  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 0973 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  JEPS12938  Salix melanopsis Joseph P. Tracy 1931-9-7 9646 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS14755  Salix melanopsis Joseph P. Tracy, C. R. Ball, and H. E. Parks 1932-5-17 10095 Humboldt Trinity River near Willow Creek; North Coast Ranges 152 Comment
  SBBG57922  Salix melanopsis H. E. Parks 1931-5-14 960 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  UC1196636  Salix melanopsis Joseph P. Tracy 1932-5-1 9845 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R. 30 Comment
  UC469458  Salix melanopsis Joseph P. Tracy 1931-9-19 9681 Humboldt Van Duzen R. Alton; Northern Coast Region, Van Duzen 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
  RSA0030801  Salix parksiana H. E. Parks 1931-5-14 0961 Humboldt Ban Duzen River between Alton and Carlotta 15 Comment
  CAS-BOT-BC129205  Salix piperi Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-13 1251 Humboldt Floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC129158  Salix scouleriana Joseph P. Tracy 1937-3-21 15238 Humboldt Van Duzen River, near Grizzly Creek 91 Comment
  HSC20084  Salix scouleriana H. E. Parks 1931-5-14 957 Humboldt Little Laribee Ridge, Van Duzen River Comment
  HSC37875  Salix scouleriana Thomas W. Nelson 1976-3-22 2277 Humboldt S side of the Eureka Muni Golf Course Comment
  POM219539  Salix scouleriana H. E. Parks 1931-5-12 951 Humboldt Bishop Pine Lodge. 150 Comment
  UC1196706  Salix scouleriana Joseph P. Tracy 1933-12-24 13132 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  UC275514  Salix scouleriana Joseph P. Tracy 1924-2-10 6600 Humboldt at Hungry Hollow Bald Mt.; Northern Coast Ranges, Bald Mt. 762 Comment
  UC470446  Salix scouleriana Joseph P. Tracy 1931-11-14 9755 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC481359  Salix scouleriana Harold E. Parks 1931-5-14 957 Humboldt Van Duzen R. <at> Little Larabee Bridge; Van Duzen R. 450 Comment
  UC490536  Salix scouleriana Joseph P. Tracy 1932-7-13 10518 Humboldt open groung at Corral Prairie (back from the meadows); Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  CAS-BOT-BC128962  Salix sitchensis W. J. Ferlatte 1967-6-13 1116 Humboldt Coastal strand, dunes, Samoa Peninsula 3 Comment
  HSC38186  Salix sitchensis Thomas W. Nelson, James Nelson 1976-3-23 3288 Humboldt Eureka, E side of F St., 3800 block Comment
  HSC90388  Salix sitchensis Jean Hanson 1980-3-8 7 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  RSA178536  Salix sitchensis Joseph P. Tracy 1950-9-10 19365 Humboldt On foothills of the Cap Ridge. 0.5 mile S of town. Along coast rd 1 mile inland from Cape Mendocino. Comment
  UC481383  Salix sitchensis Harold E. Parks 1931-3-26 908 Humboldt Van Duzen R. Alton; , Alton 15 Comment
  UC481394  Salix sitchensis Harold E. Parks 1931-3-24 913 Humboldt Eel R. Fortuna; Eel R. 10 Comment
  UC490500  Salix sitchensis Joseph P. Tracy 1932-10-2 10857 Humboldt Redwood Creek near Bair's; Northern Coast Ranges, Redwood Creek 213 Comment
  UC492339  Salix sitchensis Harold E. and Susan T. Parks 1932-4-12 1111 a Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 90 Comment
  UC506364  Salix sitchensis Joseph P. Tracy 1933-3-19 10930 Humboldt Van Duzen R. Blue Slide; Northern Coast Ranges, , Blue Slide 91 Comment
  UC504017  Salix tracyi C. R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1244 Humboldt Van Duzen River at Blue Slide 91 Comment
  HSC101557  Salvia mellifera J. P. Smith, J. O. Sawyer 2009-10-4 12685 Humboldt Along New Navy Base Road near Samoa Boat Ramp 2 Comment
  HSC41198  Sambucus nigra subsp. caerulea Thomas W. Nelson, Jane P. Nelson 1977-7-4 3590 Humboldt Along road N of Alder Springs. 1524 Comment
  HSC69779  Sambucus racemosa var. racemosa R. Kalal 1979-4-21 82 Humboldt 0.4 mi. E of Table Bluffs County Park. 15 Comment
  UC168945  Sambucus racemosa var. racemosa Joseph P. Tracy 1910-6-19 3155 Humboldt near Forks of Eel River; Northern Coast Region, region about Humboldt Bay 0 Comment
  UCSB22664  Sambucus racemosa var. racemosa Jensen, Karen 1965-4-14 Humboldt Along Tompkin's Hill Rd., 2.7 mi. from Hwy. 101 turnoff, northeast of Fortuna 91 Comment
  CAS-BOT-BC157199  Sanguisorba officinalis Carl B. Wolf 1934-7-2 5901 Humboldt Snow Camp (mts. E. of Korbel), near small lake 1371 Comment
  UC1199041  Sanguisorba officinalis subsp. microcephala Joseph P. Tracy 1938-9-25 16167 Humboldt Bald Mountain; at Lake Prairie 1066 Comment
  HSC39006  Sanicula bipinnatifida Thomas W. Nelson, Jane P. Nelson 1976-5-31 2648 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  SEINET12119553  Sanicula crassicaulis J. P. Tracy 1950-1 19023 Humboldt Sproston's Place, 3 mi S of Burr Valley 1067 Comment
  UC1022531  Sanicula crassicaulis C. Ritchie Bell 1952-5-14 3 X458 Humboldt near Alton Railroad Station Comment
  HSC55730  Sanicula graveolens G. L. Clifton, Terry Griswold 1979-7-26 10214 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  UC642319  Sanicula laciniata Joseph P. Tracy 1938-3-27 15701 Humboldt along South Fork of Eel River, Miranda South Fork Eel River; , Miranda 121 Comment
  RSA43855  Saponaria officinalis H. M. Pollard 1948-7-26 s.n. Humboldt Banks of Klamath River near Orleans. Comment
  POM141795  Saxifraga mertensiana Joseph P. Tracy 1911-6-4 3217 Humboldt Along Little River. 5 miles from the coast. 122 Comment
  UC492227  Saxifraga mertensiana Joseph P. Tracy 1927-4-2 7884 Humboldt South Fork Eel River between Miranda and Redway; North Coast Ranges, South Fork Eel River 91 Comment
  UC902007  Saxifraga mertensiana Joseph P. Tracy 1941-4-11 16858 Humboldt Willow Creek Canyon, along Trinity Highway Willow Creek Canyon 304 Comment
  HSC74483  Saxifragopsis fragarioides Gail Newton 1980-7-24 1773 Humboldt Near Somes Mtn. 1615 Comment
  RSA0101648  Sceptridium multifidum Carl B. Wolf 1937-8-10 9090 Humboldt Big Lagoon, edge of bog at state park. 6 Comment
  SEINET3991728  Schoenolirion Unknown 1926-6-20 Humboldt Horse Mtn. Comment
  UCD60367  Schoenoplectus pungens var. badius Gordon Leppig 1998-6-25 855 Humboldt McKinleyville, Mad River Estuary at end of Murray Rd. 0 Comment
  CAS-BOT-BC111704  Schoenoplectus pungens var. badius Doris K. Kildale 1927-6-25 3550 Humboldt Shelter Cove, coastal Comment
  UC668018  Scirpus acutus var. occidentalis Joseph P. Tracy 1934-7-20 13472 Humboldt Big Lagoon 3 Comment
  UC1103629  Scirpus cernuus Joseph P. Tracy 1926-8-29 7779 Humboldt near Samoa (on shore around Humboldt Bay); Northern Coast Region, Humboldt Bay, near Samoa 3 Comment
  RSA0009468  Scirpus microcarpus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  CAS-BOT-BC517416  Scoliopus bigelovii Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  POM292611  Scoliopus bigelovii Lyman Benson 1927-7-12 818 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; River: South Fork Eel. 61 Comment
  CDA41981  Scrophularia californica T. C. Fuller 1961-9-28 7058 Humboldt 1.5 miles south of Samoa. 0 Comment
  HSC37231  Scrophularia californica Lon Hall 1975-6-20 403 Humboldt About 2 mi. N from Shelter Cove Rd. on Horse Mtn. Rd., along Bear Creek, from streamside up to unused dirt logging road above creek 488 Comment
  HSC60289  Scrophularia californica Phyllis Krieg 1979-4-21 Humboldt Above Clam Beach Lagoon, E of Hwy. 101 0 Comment
  UC1409052  Scrophularia californica subsp. californica Robert F. Thorne and P. Everett 1965-8-9 35314 Humboldt Clam Beach County Park 3 Comment
  POM126381  Scutellaria antirrhinoides P. E. Goddard 1907-6-16 b. 127 Humboldt Van Duzen Comment
  CAS-BOT-BC63879  Sedum laxum subsp. heckneri Joseph P. Tracy 1935-7-30 14363 Humboldt Salmon summit. 1767 Comment
  CAS-BOT-BC63881  Sedum laxum subsp. heckneri David Imper 1985-7-1 s.n. Humboldt Slopes of Onion Mountain. 1219 Comment
  HSC79263  Sedum laxum subsp. heckneri D. K. Imper 1983-6-28 Humboldt Six Rivers National Forest, Trinity River Canyon, 2 mi. S of Weitchpec Comment
  SD51705  Sedum laxum subsp. heckneri Joseph P. Tracy 1948-9-5 18190 Humboldt On rock ledge at top of ridge, 1.0 mile south of Grizzly Camp. 1370 Comment
  UC1198839  Sedum laxum subsp. heckneri Joseph P. Tracy 1933-8-30 13015 Humboldt Grouse Mountain Grouse Mountain (on rock ledge) 1371 Comment
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Aug 17 2011
  HSC58130  Sedum obtusatum subsp. retusum Gilbert Muth 1979-8-1 12129 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC32326  Sedum radiatum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5667 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  CAS-BOT-BC63828  Sedum spathulifolium W. R. Dudley 1899-6-1 s.n. Humboldt Vicinity of Scotia 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
  HSC92016  Sedum spathulifolium var. pruinosum E. Mackey 1987-9-7 Humboldt Patrick's Point State Park Comment
  HSC6480  Sedum spathulifolium var. spathulifolium William J. Ferlatte, B. D. Rogers 1966-6-15 2103 Humboldt Larabee Valley 762 Comment
  HSC38491  Selaginella wallacei D. E. Anderson, J. P. Smith 1971-6-18 - 1097 Humboldt Horse Mtn. Comment
  HSC43159  Selaginella wallacei R. Sutherland 1976-8-24 2 .24876 Humboldt 543 Comment
  HSC45580  Senecio integerrimus Diane L. Reed 1978-4-22 16 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  CAS-BOT-BC364012  Senecio integerrimus var. major Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1828 Comment
  UC34194  Senecio integerrimus var. major Harley P. Chandler June 1901 1274 Humboldt Hupa Indian Reservation North Coast Ranges 1036 Comment
  UC91377  Senecio integerrimus var. major J. W. Blankinship 1893-6-15 Humboldt Yager Comment
  JEPS24115  Senecio minimus Peter H. Raven, R. Snow 1958-7-21 13653 Humboldt 2.9 mi s Ferndale (on road to Cape Mendecino) Comment
  UC1199488  Senecio minimus Joseph P. Tracy 1926-11-7 7826 Humboldt along Eel River from south fork to Scotia; Eel River 60 Comment
  UCD135609  Senecio minimus John M. Tucker 1948-9-4 1863 Humboldt Beck's Ranch, Hydesville. Comment
  HSC95587  Senecio sylvaticus Andrea Pickart 2002-6-27 115 Humboldt Mad River Slough and Dunes 6 Comment
  HSC57449  Senecio triangularis G. L. Clifton, Griswold 1979-7-26 10262 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  HSC67442  Senecio vulgaris J. P. Smith 1971-10-6 4945 Humboldt End of Murray Rd. in McKinleyville. Comment
  JEPS37267  Senecio vulgaris Lincoln Constance 1934-6-12 869 Humboldt Dyerville, Bull Creek road and n bank of South Fork Eel River South Fork Eel River, Bull Creek Region Comment
  UCD135816  Senecio vulgaris Linda M. Barker 1976-3-22 1337 Humboldt 3 miles west of Arcata. Comment
  MACF022872  Sequoia sempervirens Trudy R. Ericson 1978-9-3 963 Humboldt 3 mi. east of Carlotta on St. 36 60 Comment
  UC1196922  Sequoia sempervirens J. P. Tracy 1901-1-1 980 Humboldt immediate vicinity of Eureka 0 Comment
  HSC104122  Sericocarpus oregonensis Julie Kierstead Nelson, Len Lindstrand III 2010-9-20 2010035 Humboldt Comment
  SEINET11802379  Sericocarpus rigidus J. P. Tracy 1950-1 19378 Humboldt about 3 mi SW of Orleans Comment
  POM203228  Sherardia arvensis M. S. Jussel 1931-5-2 s.n. Humboldt 20 mi. N. of Garberville. Comment
  UC169027  Sherardia arvensis Joseph P. Tracy 1906-5-6 2446 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC180183  Sidalcea diploscypha Joseph P. Tracy 1914-5-14 4466 Humboldt Fort Seward Northern Coast Ranges, Fort Seward 121 Comment
  UC1197966  Sidalcea malachroides Joseph P. Tracy 1906-6-10 2472 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1602151  Sidalcea oregana subsp. spicata Joseph P. Tracy 1919-9-18 5253 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit (along streams in meadows) 1524 Comment
  HSC26255  Silene bolanderi Thomas W. Nelson 1971-5-31 444 Humboldt 915 Comment
  RSA47144  Silene californica Doris K. Kildale 1925-7-2 900 Humboldt Table Bluff - bluff on coast. Comment
  UC8432  Silene campanulata subsp. campanulata Bolander 1866-1 6517 Humboldt Red Mountain Comment
  CAS-BOT-BC174877  Silene campanulata subsp. glandulosa Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  JEPS22945  Silene campanulata subsp. glandulosa Volney Rattan 1883-1 Humboldt Hoopa Valley Comment
  HSC39236  Silene gallica D. E. Anderson, J. P. Smith 1971-6-28 - 1267 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  UC161034  Silene gallica Joseph P. Tracy 1904-7-24 2124 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  HSC63145  Silene grayi M. A. Baker 1979-6-27 937 Humboldt Below Trinity Summit at head of Oregon Creek Comment
  SEINET3823279 Image available Silene hookeri Joseph P. Tracy 1913-6-20 4234 Humboldt Lower foothills of Buck Mountain 762 Comment
  UCR40032  Silene hookeri subsp. bolanderi T. Jimerson 1983-5-26 s.n. Humboldt Six Rivers National Forest, Lower Trinitty Road; roadside bank on the road to Brush Mountain Lookout off Friday Ridge Road. (6N08) 1088 Comment
  CAS-BOT-BC181235  Silene hookeri subsp. bolanderi T. Worley; M. Mill; F. Rosenthal 1985-4-20 37 Humboldt Burnt Ranch Campground, Shasta-Trinity Nat'l Forest 432 Comment
  HSC4168  Silene laciniata subsp. californica C. B. Wolf 1927-8-29 1196 Humboldt 7 mi. S of Ferndale and Capetown, Bear River Ridge, Mt. Glen Comment
  HSC68116  Silene laciniata subsp. californica J. P. Smith 1973-5-26 6819 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC668087  Silene lemmonii Joseph P. Tracy 1932-7-12 10452 Humboldt near Corral Prairie (Trinity Summit); , near Corral Prairie 1584 Comment
  HSC49362  Sisyrinchium bellum R. York 1979-4-13 219 Humboldt Just N of College Cove, 1 mi. N of Trinidad Comment
  SEINET6744566 Image available Sisyrinchium bellum C. C. Harris, S. K. Harris 1942-6-9 1219 Humboldt 3 miles north and 1 mile west of Fernbridge, Humboldt County, California. Alt. Ca. 33 m. Comment
  UC1108989  Sisyrinchium bellum H. E. and S. T. Parks June, 1936 5599 Humboldt Spruce Cove; Trinidad Comment
  HSC98162  Sisyrinchium bellum Brad Klipfel 1973-4-28 12 Humboldt Along Canyon Creek Comment
  HSC27000  Sisyrinchium californicum Brad Klipfel 1973-8-17 271 Humboldt Big Lagoon Park, N of Trinidad Comment
  UC1192312  Sisyrinchium californicum Malcolm A. Nobs, S. Galen Smith 1949-8-3 1196 Humboldt at the suthern outskirts of Eureka Comment
  UC666970  Smilacina stellata Joseph P. Tracy 1939-4-25 16222 Humboldt Bull Creek; mouth 60 Comment
  CAS-BOT-BC154206  Solanum umbelliferum L. Abrams 1918-6-16 7132 Humboldt Willow Creek Comment
  JEPS11997  Solanum umbelliferum Joseph P. Tracy 1937-7-24 15528 Humboldt 2 mi se of Devil's Hole (Trinity Summit); Trinity Summit 1584 Comment
  SEINET10872207  Solidago Mary Susan Taylor 1990-8-22 Taylor 6079 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  CAS-BOT-BC385867  Solidago canadensis Mrytle Paulson 1918-4-1 s.n. Humboldt Eureka Comment
  CDA8800  Solidago spathulata T. C. Fuller 1961-9-28 7051 Humboldt Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  HSC12531  Solidago spathulata Wilbur Peterson 1970-10-7 22 Humboldt McKinleyville Beach at the end of Murray Rd. Comment
  SD38301  Solidago spathulata Edith A. Purer 1932-7-30 4673 Humboldt South of Orick Comment
  UCSC000787  Solidago spathulata H. L. Person 1932-7-20 s.n. Humboldt Eureka, Field Brook, Tinriesia Forest Comment
  CAS-BOT-BC364969  Solidago velutina subsp. californica Carl D. Duncan 1920-9-22 s.n. Humboldt On bank of Trinity River, Hoopa Valley Comment
  UC127601  Soliva sessilis Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5684 Humboldt Hoopa Mt. North-Western California, Hoopa Mt. Comment
  CHSC31290  Sonchus asper Mark Stopher 1980-6-4 96 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  HSC102045  Sorbus scopulina M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 948 Humboldt Rustic Camp, northwest of Patterson Meadows Comment
  HSC63283  Sorbus scopulina M. A. Baker 1979-6-29 934 Humboldt Head of Oregon Creek Comment
  UC205632  Sorbus scopulina var. cascadensis Joseph P. Tracy 1919-9-24 5292 Humboldt Trinity Summit Comment
  UC1198764  Sorbus scopulina var. scopulina Joseph P. Tracy 1935-7-28 14310 Humboldt Ridges e of Corral Prairie; Trinity Summit 1828 Comment
  RSA54125  Sparganium angustifolium subsp. emersum Henry M. Pollard 1946-8-13 s.n. Humboldt Pond near Harley Place. Orleans region. Comment
  RSA796313  Spartina foliosa D. Kearns 1979-8-24 20 Humboldt Arcata Bay. Near the Arcata Boat Launching Facility at the south end of I Street. Comment
  HSC59047  Spergula arvensis Thomas Wood 1979-4-4 93 Humboldt Near Arcata, 3/4 mi. W on Lanphere Rd. after triple intersection with Upper Bay Rd. and Mad River Rd. 0 Comment
  HSC100418  Spergula arvensis Carl C. Marshall Apr 1887 398 Humboldt Fields, etc. Comment
  HSC4233  Spergula arvensis W. Lanphere 1937-4-20 Humboldt College Campus Comment
  HSC89986  Spergularia canadensis var. occidentalis Leonel Arguello 1989-7-15 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  UC161002  Spergularia rubra Joseph P. Tracy 1906-6-17 2492 Humboldt Eureka Northern Coast Region (dry bed of Rick's Prairie pond) 0 Comment
  HSC43208  Spergularia rubra R. Sutherland 1976-8-18 8 .18876 Humboldt 183 Comment
  HSC49824  Spergularia salina R. York 1979-4-16 238 Humboldt E of the Emerson Mill along Samoa Blvd. Comment
  HSC19751  Spiraea douglasii Paul Shields 1955-10-7 Humboldt Essex Pond, near Fieldbrook Comment
  RSA472778  Spiraea douglasii E. S. Spalding 1884-7-12 s.n. Humboldt Near Arcata. Comment
  UC275298  Spiraea douglasii R. M. Holman 1925-7-23 Humboldt Big Lagoon Comment
  UCD114050  Spiraea douglasii Linda M. Barker 1976-6-14 1600 Humboldt 3 miles west of Arcata. Comment
  HSC41270  Spiraea splendens var. splendens Brad Klipfel 1974-6-25 413 Humboldt Horse Mtn. Comment
  UC1196399  Spiranthes romanzoffiana Joseph P. Tracy 1949-8-11 18463 Humboldt Snow Camp 1402 Comment
  UC577313  Stachys ajugoides var. rigida Joseph P. Tracy 1935-7-18 14102 Humboldt Table Bluff 15 Comment
  UC577327  Stachys ajugoides var. rigida Joseph P. Tracy 1936-6-8 14874 Humboldt Trinidad 3 Comment
  UC726345  Stachys ajugoides var. rigida A. A. Heller 1923-7-8 13769 Humboldt near Pepperwood Comment
  UCLA70889  Stachys ajugoides var. rigida C. Epling, Wm. Robison 1935-7-25 Humboldt Dyerville Comment
  UCLA71151  Stachys ajugoides var. rigida Huron H. Smith 1911-6-5 3782 Humboldt Camp 20 Vances Comment
  HSC40957  Stachys chamissonis Linda M. Barker 1976-8-24 1683 Humboldt 3 mi. W of Arcata Comment
  RSA447391  Stachys emersonii Christopher Davidson 1973-5-29 2201 Humboldt Ca. 2 mi S of Carlotta on St. Hwy 36 61 Comment
  HSC89453  Stachys mexicana M. Roantree 1985-5-7 40 Humboldt SW side of Trinidad Head, along trail Comment
  UCR122361  Stachys mexicana George K. Helmkamp, E. A. Helmkamp 2001-7-8 6983 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  HSC48678  Stachys rigida var. rigida Brad Klipfel 1973-7-31 250 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC175344  Stellaria borealis subsp. sitchana Doris K. Kildale 1926-3-24 1684 Humboldt Ryan Slough near the Occidental Ranch Comment
  HSC56102  Stellaria crispa G. L. Clifton 1979-7-31 11825 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC4279  Stellaria media Jack Rockwell 1962-4-5 30 Humboldt N bank of Van Duzen River, E of Hwy. 101 Comment
  HSC84043  Stellaria media L. P. Janeway 1983-4-16 228 Humboldt Near the old Hwy. 299 on W side of Berry Summit. 823 Comment
  HSC73045  Stipa lemmonii M. A. Baker 1980-7-19 3004 Humboldt Near Bret Hole. 1814 Comment
  CAS-BOT-BC87607  Streptanthus tortuosus Doris K. Kildale 1928-5-27 5955 Humboldt Kneeland Prairie. 853 Comment
  CAS-BOT-BC87613  Streptanthus tortuosus Joseph P. Tracy; F. W. Pennell 1940-7-7 16667 Humboldt Grouse Mountain. 1463 Comment
  UC1103496  Streptopus amplexifolius var. americanus Joseph P. Tracy 1949-6-25 18346 Humboldt near Box Camp; Trinity Summit 1524 Comment
  HSC34130  Swertia radiata J. O. Sawyer 1970-6-24 2285 Humboldt Near Waterdog Lakes 1860 Comment
  HSC38332  Symphyotrichum chilense Peter Sorensen 1976-8-8 Humboldt King Salmon Comment
  UC1222915  Symphyotrichum hendersonii Joseph P. Tracy 1947-8-24 17902 Humboldt Box Camp Trinity Summit 1463 Comment
  JEPS40830  Symphyotrichum subspicatum Milo S. Baker 1923-8-3 Humboldt roadside near Trinidad Comment
  UC582545  Synthyris reniformis Joseph P. Tracy 1926-2-28 7380 Humboldt East Fork of Willow Creek Canyon]; Northern Coast Ranges 457 Comment
  UC902237  Synthyris reniformis Joseph P. Tracy 1941-3-26 16812 1/2 Humboldt Willow Creek Canyon, along Trinity Highway Willow Creek Canyon 457 Comment
  SEINET10473457  Tanacetum Mary Susan Taylor 1990-8-22 Taylor 6072 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  CAS-BOT-BC376725  Tanacetum bipinnatum Doris K. Kildale 1926-6-29 2245 Humboldt Mouth of Mad River Comment
  SEINET3816604  Tanacetum bipinnatum Bassett Maguire 1934-6-9 15318 Humboldt On sand dunes, clam beach, 15 miles from North Eureka Comment
  RSA18773  Tanacetum camphoratum P. A. Munz 1954-7-25 19869 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  CAS-BOT-BC376776  Tanacetum parthenium Ynez Whilton Winblad 1941-6-24 s.n. Humboldt Between Garberville and Pepperwood Comment
  RSA167250  Taraxacum laevigatum Joseph P. Tracy 1951-6-24 19542 Humboldt Ashfield Ridge 762 Comment
Read comments
Aug 15 2009
  RSA259589  Tauschia kelloggii Thomas W. Nelson, James Nelson 1975-5-24 1840 Humboldt McKeown Ranch north of Dinsmore Comment
  CAS-BOT-BC85216  Taxus brevifolia Doris K. Kildale 1926-9-9 2685 Humboldt Little Van Duzen River on Bridgeville - Red Bluff Road 640 Comment
  UC54777  Taxus brevifolia Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5819 Humboldt Tinity Summit North Coast Ranges, Trinity Summit Comment
  HSC56241  Tellima grandiflora Walter Overton 1979-8-1 12338 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  RSA120721  Tellima grandiflora S. S. Tillett 1956-7-5 604 Humboldt Along State Hwy 96, above Klamath River, 2 miles S of Orleans. 152 Comment
  CAS-BOT-BC399767  Thalictrum polycarpum Alice Eastwood 1921-7-21 10669 Humboldt Vanduzen [Van Duzen] River, on the road Comment
  UC552289  Thlaspi montanum var. montanum Joseph P. Tracy 1933-7-11 12690 Humboldt Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  HSC13054  Thuja plicata D. Santana, C. Kline Oct 1970 4 Humboldt HSC Campus Comment
  SBBG372  Thuja plicata J. W. Howe 1938-3-30 Humboldt Humboldt County [no specific locality] Comment
  SEINET3866804  Thuja plicata Jack D. Brotherson 1982-7-14 3315 Humboldt Ca 25 miles north of Arcata along U.S. Hwy 101.; 0 Comment
  OBI33243  Tiarella trifoliata var. unifoliata David J. Keil 1983-7-1 17257 Humboldt Along Bull Crk Flats Rd 1.4 mi W of US 101. Humboldt Redwoods State Park Comment
  SBBG2855  Tiarella trifoliata var. unifoliata H. and M. Dearing 1939-5-15 3703 Humboldt E fork of Willow Crk 762 Comment
  UC535760  Tiarella trifoliata var. unifoliata Eleanor Armstrong 1934-5-17 Humboldt Garden Club Grove Comment
  SDSU9572  Tiarella trifoliata var. unifoliata D. F. Howe 1961-7-31 3097 Humboldt 12 miles N of Garberville on #101. 30 Comment
  UC1198898  Tiarella trifoliata var. unifoliata Joseph P. Tracy 9062 Humboldt near McKay Camp South Fork Mountain; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC30084  Tofieldia occidentalis subsp. occidentalis Mrs. M. H. Manning Aug 1899 Humboldt Comment
  UC154080  Tolmiea diplomenziesii J. P. Tracy 1900-5-30 832 Humboldt immediate vicinity Eureka 0 Comment
  RSA41966  Tolmiea menziesii H. C. Cantelow 1935-6-13 1095 Humboldt East of Arcata. Road to Weaverville. Comment
  HSC21164  Tonella tenella D. E. Anderson 1963-5-18 2452 Humboldt Near junction of New and Trinity Rivers Comment
  UCSC000695  Tonella tenella J. W. Blankinship 1893-6-20 s.n. Humboldt Larrabee Creek Comment
  UC727683  Torilis arvensis Milo S. Baker 1946-6-15 11484 Humboldt Trinity Hwy, Berry's Mt. Comment
  HSC45070  Torilis arvensis R. Sutherland 1978-5-16 2 .16578 Humboldt Redwood Creek 143 Comment
  CAS-BOT-BC169174  Toxicodendron diversilobum Alice Eastwood; John Thomas Howell 1937-6-22 4712 Humboldt Near Harris Comment
  CAS-BOT-BC169179  Toxicodendron diversilobum John McLaren 1920-9-1 s.n. Humboldt Unspecified Comment
  JEPS63915  Toxicodendron diversilobum W. L. Jepson 1932-7-27 16429 Humboldt on rd. to Bull Creek Dyerville Comment
  UC668182  Toxicodendron diversilobum Joseph P. Tracy 1937-5-30 15301 Humboldt 5 mi. n. Blocksburg (Larrabee Creek); Larrabee Creek 365 Comment
  UC154267  Trichostema lanceolatum Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  UC147171  Trifolium albopurpureum var. albopurpureum Harley P. Chandler 1901-6-1 1412 Humboldt Klamath River North Coast Ranges 243 Comment
  UC1223365  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1950-6-15 18807 Humboldt 7 mi n Harris (Jenk's Ranch) Comment
  UC302174  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1923-5-23 6260 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  SEINET12157023  Trifolium arvense J. P. Tracy 1941-1 16970 Humboldt Eureka, G Street near 9th Comment
  UC1223517  Trifolium barbigerum J. P. Tracy 1948-6-13 18039 Humboldt 7 mi nw Blockburg (where rd is near creek, halfway betw Bridgeville and Blocksburg) Comment
  HSC104457  Trifolium campestre Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 18 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC100886  Trifolium cyathiferum Carl C. Marshall Jun 1887 453 Humboldt Jewett Creek. Comment
  RSA249399  Trifolium cyathiferum D. E. Anderson, Thomas Nelson, S. Dowty 1972-6-17 5705 Humboldt McKeown Ranch north of Dinsmore Comment
  UC1223460  Trifolium fragiferum Joseph P. Tracy 1933-8-22 12986 Humboldt 1 mi w Loleta Comment
  HSC15121  Trifolium fucatum Harvey Doerksen 1962-5-8 11 Humboldt 3 mi. W of Blue Lake, fork Mad River and Essex Creek Comment
  HSC1864  Trifolium fucatum Elrid H. Spinas 1948-5-15 20 Humboldt Horse Mtn. Comment
  UC1223457  Trifolium fucatum Joseph P. Tracy 1935-5-25 13831 Humboldt Blocksburg Comment
  CDA27949  Trifolium fucatum T. C. Fuller 1958-6-17 1720 Humboldt Petrolia, Lower Mattole. 0 Comment
  UC1541583  Trifolium fucatum H. E. and S. T. Parks May 1930 738 Humboldt vicinity Bridgeville Comment
  HSC57305  Trifolium longipes subsp. oreganum Griswold, Butler 1979-7-10 6210 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  UC495659  Trifolium longipes var. oreganum Joseph P. Tracy 1930-7-23 9136 Humboldt Horse Ranges Northern Coast Ranges Comment
  UC494186  Trifolium microcephalum H. E. and S. T. Parks 1930-5-25 883 Humboldt Laribee Valley Comment
  HSC45137  Trifolium microcephalum R. Sutherland 1978-6-1 4 .1678 Humboldt 213 Comment
  HSC45141  Trifolium microcephalum R. Sutherland 1978-5-16 5 .16578 Humboldt 157 Comment
  UC1103448  Trifolium microcephalum Joseph P. Tracy 1929-5-5 8574 Humboldt along Sout Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  UC160940  Trifolium microdon J. P. Tracy 1900-5-28 822 Humboldt Eureka vicinity 0 Comment
  RSA195475  Trifolium microdon C. R. Gunn 1963-6-2 2690 Humboldt Two miles SE of Arcata Comment
  UC1223344  Trifolium microdon Joseph P. Tracy 1933-5-28 12406 Humboldt Ocean View Cemetery Eureka Comment
  UC180206  Trifolium obtusiflorum Joseph P. Tracy 1914-7-5 4545 Humboldt High Prairie Northern Coast Ranges, Bald Mtn 1066 Comment
  UCSB30597  Trifolium pratense Edwards, David 1974-7-13 Humboldt North side of 7th St. just W. of its overpass of U.S. 101, Arcata 18 Comment
  HSC70318  Trifolium repens M. A. Baker 1980-6-7 1869 Humboldt Near Ammon Creek 732 Comment
  HSC71616  Trifolium repens J. P. Smith 1973-5-26 6822 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC1103451  Trifolium variegatum var. melananthum J. P. Tracy 1898-4 158 Humboldt Eureka vicinity Northern Coast Region 0 Comment
  HSC49043  Trifolium willdenovii Patricia Shesgreen 1978-5-6 71 Humboldt Arthur W. Way Memorial Park campground. 100 yds. N of Mattole River. Comment
  UC16760  Trifolium willdenovii Joseph Burtt Davy and Walter C. Blasdale 1899-6-27 5874 Humboldt Martin's Ferry Comment
  RSA18011  Trifolium wormskioldii Carl B. Wolf 1927-8-22 782 Humboldt Big Lagoon. Comment
  UC16825  Trifolium wormskioldii Joseph Burtt Davy and Walter C. Blasdale 1899-6-17 5600 Humboldt Arcata Comment
  UCD138114  Triglochin concinna E. W. Jameson. Jr. 1958-4-1 s.n. Humboldt Arcata. Comment
  HSC14167  Triglochin maritima S. J. Moore 1965-5-8 15 Humboldt Marsh adjacent to Mad River Slough. Comment
  HSC59493  Triglochin maritima M. A. Ericksen 1979-4-21 214 Humboldt Big Lagoon County Beach Comment
  HSC90386  Triglochin maritima Jean Hanson 1980-4-12 44 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka, W end of island near marsh between dike and shore. Comment
  HSC65512  Trillium albidum M. A. Baker 1980-6-8 1909 Humboldt Near Buck Flat. 1554 Comment
  HSC97468  Trillium albidum Cara Witte 2007-5-8 4 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  UC667135  Trillium albidum Joseph P. Tracy 1933-5-21 12211 Humboldt McClellan Mt. 822 Comment
  UCD139896  Trillium albidum R. N. Raynor 1935-3-13 s.n. Humboldt Fort Seward. Comment
  CAS-BOT-BC520052  Trillium albidum R. F. Freeman; J. D. Freeman 1967-5-7 581 Humboldt Humboldt County Comment
  HSC15715  Trillium albidum D. W. Snell 1964-4-18 46 Humboldt Mad River bottom 3 mi. N of Blue Lake Comment
  UC1197808  Trillium albidum Joseph P. Tracy 1930-8-3 9152 Humboldt lower foothills of n.w. slope Buck Mt. 762 Comment
  UC1222529  Trillium albidum Joseph P. Tracy 1950-4-20 18615 Humboldt 2 mi. w. Dinsmosre's (lower foothills of n.w. slope of Buck Mt.); Buck Mt. 762 Comment
  CAS-BOT-BC519078  Trillium angustipetalum Doris K. Kildale 1926-3-27 1659 Humboldt Wiregrass Prairie in Bald Hills Comment
  UC1197812  Trillium angustipetalum Arthur E. Connick 1928-4-15 Humboldt Prairie Creek 60 Comment
  CAS-BOT-BC519092  Trillium chloropetalum var. chloropetalum D. H. Norris 1970-5-20 12216 Humboldt At crest of ridge on Big Hill Road east of Hoopa, at streamhead. Comment
  HSC96776  Trillium kurabayashii M. Mesler 2006-5-25 603 Humboldt Bald Hills FS, 18.8 mi. SE of Hwy. 101 915 Comment
  CAS-BOT-BC389696  Trillium ovatum Mary K. Wicksten 1972-3-8 39 Humboldt Arcata Comment
  CHSC2321  Trillium ovatum V. Holt 1933-4-11 Humboldt Comment
  HSC89492  Trillium ovatum P. A. Daly 1986-2-28 59 Humboldt Trinidad Head, along trail 61 Comment
  RSA378216  Trillium ovatum Jane Turner, Francis M. Ball 1962-7-10 1140 Humboldt East Fork Willow Creek Forest Camp, Hwy 299 ca. 5 mi. W of Willow Creek in Six Rivers National Forest. 457 Comment
  UC1197813  Trillium ovatum Joseph P. Tracy 1925-3-28 6939 Humboldt near <Cutten or Cutter> and McDonald Tract Northern Coast Ranges, Eureka 365 Comment
  CAS-BOT-BC521320  Trillium rivale J. H. Thomas 1949-6-12 897 Humboldt 2 miles west of Matins Ferry on road to Orick. Comment
  HSC26329  Triphysaria eriantha subsp. eriantha Thomas W. Nelson 1971-4-16 382 Humboldt N of Coast Guard Station on Samoa Peninsula Comment
  JEPS26218  Triphysaria eriantha subsp. rosea H. E. Parks and Joseph P. Tracy 1927-4-24 7946 Humboldt Bucksport 6 Comment
  UC27277  Triphysaria pusilla C. E. Spear April, 1898 Humboldt Waddington Comment
  UC179947  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1914-5-14 4472 Humboldt Fort Seward; Northern Coast Ranges, Fort Seward 121 Comment
  CAS-BOT-BC199626  Trisetum canescens W. R. Dudley 1899-6-1 s.n. Humboldt Eel River near Dyerville Comment
  JEPS72932  Trisetum canescens Lincoln Constance 1934-5-23 612 a Humboldt se slope of mountain above Look Prairie 365 Comment
  SEINET10605778  Trisetum canescens Joseph P. Tracy 1901-5-30 Tracy 1109 Humboldt At Eureka. Comment
  JEPS75416  Trisetum cernuum W. L. Jepson 1932-7-26 16420 Humboldt Bull Creek 121 Comment
  UC1103151  Trisetum cernuum J. P. Tracy 1900-5-22 800 1/2 Humboldt immediate vicinity Eureka 0 Comment
  UC1714630  Trisetum cernuum Joseph P. Tracy 1926-6-13 7599 Humboldt near Blue Lake (Liscom Hill Road); North Coast Ranges 152 Comment
  SEINET8719521 Image available Trisetum cernuum Unknown 1952-1 7551 Humboldt Spruce Grove, Trinidad. Comment
  SBBG889  Triteleia hyacinthina K. K. Muller 1954-6-21 632 Humboldt Olsen Crk, 2 mi ENE of Mad River Comment
  HSC68611  Triteleia laxa Jacqueline Greenleaf 1980-7-16 240 Humboldt Near Buck Mountain. 1250 Comment
  SEINET181190  Triteleia laxa Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-8 15085 Humboldt 5 miles north of Garberville Comment
  CAS-BOT-BC526357  Triteleia laxa L. R. Abrams 1918-6-14 7089 Humboldt Korbel to Three Creeks near March's ranch Comment
  UC1222687  Triteleia laxa Joseph P. Tracy 1950-6-8 18755 Humboldt windswept flat s Cape Mendocino; Davis Creek Mouth Comment
  SEINET200846  Triticum aestivum J. P. Tracy 1922-7-16 6102 Humboldt CULTIVATED; Eureka 0 Comment
  SDSU2008  Tsuga heterophylla D. F. Howe 1963-7-7 3616 Humboldt 5 miles north of Orick on #101. Comment
  UC1585364  Tsuga heterophylla R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 Humboldt e of Arcata (on Hwy 299, 28 km e of Hwy 101); Hwy 299 360 Comment
  CAS-BOT-BC73936  Turritis glabra S. K. Harris; J. P. Tracy; H. S. Yates 1936-6-17 3418 Humboldt Northwest slopes of Buck Mountain. 822 Comment
  HSC14491  Umbellularia californica T. W. Beck 1963-3-17 15 Humboldt Humboldt Meridian, Camp Bauer, Korbel Comment
  HSC97590  Umbellularia californica Steven Lee 2004-4-26 32 Humboldt Horse Mtn., 4 mi. up Titlow Hill Rd. from Hwy. 299 Comment
  UC1222167  Umbellularia californica Joseph P. Tracy 1950-12-10 18600 Humboldt vicinity of Carlotta 30 Comment
  HSC40006  Urtica dioica subsp. gracilis Linda M. Barker 1976-9-3 1696 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC59133  Urtica dioica subsp. gracilis Terry Roth 1979-5-20 65 Humboldt Along old logging road that follows Jolly Giant Creek. 79 Comment
  UC672856  Urtica dioica subsp. holosericea Joseph P. Tracy 1937-7-19 15448 Humboldt Blue Slide on Van Duzen River Blue Slide; Van Duzen River, Blue Slide 91 Comment
  CAS-BOT-BC199304  Vaccinium ovatum Doris K. Kildale 1927-3-25 3008 Humboldt Humboldt Hill near Bucksport School House 15 Comment
  CAS-BOT-BC199309  Vaccinium ovatum L. R. Abrams 1916-7-11 5992 Humboldt Between Balocksberg [Blocksburg] and Bridgeville Comment
  CAS-BOT-BC199313  Vaccinium ovatum John McLaren 1920-9-1 s.n. Humboldt Unspecified Comment
  CHSC24741  Vaccinium ovatum G. Strang 1976-4-11 8 Humboldt 6.3 mi w of intersection of U.S. 101 and dirt road leading to Fern Canyon on west side of dirt road. 45 Comment
  JEPS25685  Vaccinium ovatum P. C. Hutchison 1961-5-22 2006 Humboldt 14.3 mi e Arcata junction with U.S. Highway 101 (on U.S. Highway 299) Comment
  POM257944  Vaccinium ovatum H. E. Parks, S. T. Parks 1937-04 5638 Humboldt Spruce Cove, Trinidad. Comment
  RSA172257  Vaccinium ovatum R. F. Thorne 1957-9-3 19027 Humboldt Patrick's Point State Park. Comment
  RSA1918  Vaccinium ovatum C. B. Wolf 1930-10-24 1017 Humboldt Along the Kamath River, 2 mi. below mouth of Salmon River. Comment
  UC412670  Vaccinium ovatum Mrs. M. H. Manning Apr 1899 Humboldt Hupa Valley Comment
  HSC7913  Vaccinium ovatum J. Pursell 1964-10-18 10184 Humboldt 1 mi. N from Hwy. 299 on Bald Mountain Rd. Comment
  CAS-BOT-BC199405  Vaccinium parvifolium Doris K. Kildale; J. W. Gillespie 1929-6-25 8393 Humboldt Pines Pasture, Eureka Comment
  RSA34285  Vaccinium parvifolium J. Wendell Howe 1930-9-15 s.n. Humboldt Arcata. Comment
  UC562450  Vaccinium parvifolium Joseph P. Tracy 1927-6-12 8133 Humboldt Horse Mountain 1432 Comment
  HSC48152  Valeriana sitchensis subsp. sitchensis Brad Klipfel 1975-5-30 656 Humboldt N of Horse Mtn. Comment
  UC602496  Valeriana sitchensis subsp. sitchensis Joseph P. Tracy 1932-7-13 10505 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC3380  Vancouveria hexandra J. F. Knezevich 1968-5-21 448 Humboldt 20 mi. E of Arcata on Hwy. 299 at Lord Ellis Summit Comment
  SBBG70038  Vancouveria hexandra L. Rowntree 1931-7-22 Humboldt just S of Ferndale Comment
  SD73187  Vancouveria hexandra Darley F. Howe 1969-6-4 4630 Humboldt 14.6 miles east of Alton on Highway #36 89 Comment
  SJSU1032  Vancouveria hexandra A. C. Browne 1950-5-23 Humboldt Weott Comment
  HSC64196  Vancouveria planipetala J. O. Sawyer, M. A. Ericksen 1979-6-23 3372 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  UC1173640  Veratrum californicum var. californicum Joseph P. Tracy 1936-6-28 15011 Humboldt near Murphy Meadows; Bald Mountain 975 Comment
  UC1198213  Veratrum californicum var. californicum Joseph P. Tracy 1933-7-25 12862 Humboldt in wet meadow Grouse Mountain 1524 Comment
  UC175819  Veratrum californicum var. californicum Joseph P. Tracy 1913-6-23 4280 Humboldt near summit ridge between Van Duzen and Mad Rivers (in wet meadow); Northern Coast Ranges, Dinsmore's Ranch 1066 Comment
  HSC58115  Veratrum viride G. L. Clifton, Griswold 1979-8-1 12074 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  JEPS11174  Verbascum blattaria Joseph P. Tracy 1937-6-26 15366 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  HSC21738  Verbena lasiostachys D. E. Anderson 1963-5-25 2499 Humboldt 4 mi. E of Petrolia. Comment
  HSC21223  Veronica arvensis William J. Ferlatte 1963-5-15 47 Humboldt Waste place near 11th and B Sts., Arcata Comment
  HSC83999  Veronica arvensis L. P. Janeway 1983-5-1 254 Humboldt SW corner of old baseball field (S of new Science Building) 30 Comment
  UC176114  Veronica persica Joseph P. Tracy 1912-7-3 3718 Humboldt Eel River Valley, at Metropolitan Eel River Valley; Northern Coast Ranges, Eel River Valley 30 Comment
  HSC21217  Veronica persica D. K. Smith 1968-1-16 1 Humboldt 0.5 mi. S of Blue Lake on West End Rd. Comment
  HSC56929  Vicia americana var. americana G. L. Clifton, Butler 1979-7-26 9357 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UC1197479  Vicia americana var. americana Joseph P. Tracy 1936-3-29 14786 Humboldt between Miranda and Redway (South Fork of Eel River); North Coast Ranges, South Fork of Eel River 91 Comment
  UC495715  Vicia americana var. americana Joseph P. Tracy 1932-7-13 10509 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  SEINET10738618  Vicia americana var. americana J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13014 Humboldt On U.S. 101, near Holmes, 1.76 km south of Stafford Road. Comment
  UC709400  Vicia americana var. americana Joseph P. Tracy 1933-7-26 12905 Humboldt near 5350 ft Grouse Mt. summit; Grouse Mt. Comment
  HSC100541  Vicia americana var. linearis Carl C. Marshall May 1886 216 Humboldt Everywhere, Humboldt Bay. Comment
  HSC49032  Vicia gigantea Patricia Shesgreen 1978-5-5 65 Humboldt 5.1 mi. S of Ferndale on Mattole Rd. Comment
  HSC38932  Vicia hirsuta Linda M. Barker 1976-5-13 1479 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  RSA91237  Vicia sativa F. W. Peirson 1923-7-11 3625 Humboldt 7 miles N of Arcata. Comment
  UCD108854  Vicia sativa subsp. nigra Linda M. Barker 1976-5-13 1481 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC15256  Vicia sativa subsp. nigra J. R. Eichelberger 1964-5-3 41 Humboldt 2 mi. N of Fieldbrook Comment
  HSC15280  Vicia sativa subsp. sativa A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek Jct., 200 yards W of Lindsey Creek Comment
  HSC2104  Vicia sativa subsp. sativa C. B. Wolf 1927-8-28 1185 Humboldt Eureka Bay, on the road to Arcata Comment
  HSC71472  Vicia tetrasperma J. P. Smith, J. O. Sawyer 1973-5-12 6665 Humboldt 1.0 mi. from Redwood Creek on Hoopa Rd. 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
  CAS-BOT-BC263950  Viola adunca L. B. Kildale 1927-7-10 3723 Humboldt Gans Prairie, N Bald Hills Road 609 Comment
  CAS-BOT-BC263951  Viola adunca L. B. Kildale 1926-3-26 1656 Humboldt Dillon Road between Beatrice and Field's Landing Comment
  HSC21774  Viola adunca K. P. St. John 1965-4-3 10 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  HSC73065  Viola adunca M. A. Baker 1980-6-16 1948 Humboldt Near Onion Mtn. 1280 Comment
  HSC44773  Viola adunca Thomas W. Nelson, Jane Nelson 1977-6-19 3499 Humboldt Bog northwest of pond above Alder Springs 1555 Comment
  HSC100695  Viola canina Carl C. Marshall Apr 1886 169 Humboldt Everywhere. Comment
  HSC31194  Viola cuneata D. E. Anderson 1972-6-20 5749 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  HSC48412  Viola glabella Brad Klipfel 1973-6-10 84 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1198457  Viola glabella Joseph P. Tracy 1912-3-31 3562 Humboldt below Fieldbrook (on Lindsay Creek); Northern Coast Ranges, Lindsay Creek 30 Comment
  HSC74380  Viola hallii M. A. Baker 1980-6-28 2480 Humboldt Near Mad River Buttes 1445 Comment
  CDA36588  Viola odorata Gordon Leppig, Sylvia Leppig 2000-12-23 1525 Humboldt Arcata; southwest corner of 10th & I Street. Comment
  BLMAR574  Viola praemorsa Jennifer Wheeler 2010-5-12 574 Humboldt Lacks Creek, Faulkner prairie 731 Comment
  RSA249436  Viola purpurea subsp. integrifolia D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5591 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  HSC104092  Viola sempervirens Monica Rodriguez, William A. Worley 2015-2-21 6 Humboldt Rock Creek Ranch; 8.2 mi. along South Fork Rd. from Redwood Highway 199. 134 Comment
  UC183750  Viola sempervirens Joseph P. Tracy 1913-5-4 4054 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  SEINET11978066  Viola sempervirens Unknown 1936-1 Humboldt Comment
  SEINET200824 Image available Viola sheltonii J. P. Tracy 1913-6-17 4187 Humboldt Buck Mountain near the summit Comment
  POM92419  Vitis californica L. R. Abrams 1922-6-25 8220 Humboldt 6 miles N of Garberville Comment
  UC34061  Vulpia bromoides J. P. Tracy 1900-6-23 858 Humboldt immediate vicinity Eureka 0 Comment
  SEINET11682992  Vulpia bromoides K. S. Erdman 1970-1 4818 Humboldt summit of Gold Bluffs on park road about 2 mi W of US 101 at Berry Glenn, Redwood National Park Comment
  RSA183526  Vulpia microstachys D. E. Anderson 1965-5-8 3648 Humboldt 3 miles N of Willow Creek along road on E side of Trinity River. Comment
  HSC71646  Vulpia myuros J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9930 Humboldt Ishi Pishi Rd., 2.5 mi. from its junction with Hwy. 96 in Orleans 213 Comment
  HSC70379  Whipplea modesta M. A. Baker 1980-6-7 1796 Humboldt Near Brush Mtn. 287 Comment
  UCD136104  Woodwardia fimbriata K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  CAS-BOT-BC382917  Wyethia angustifolia Doris K. Kildale 1926-6-27 2217 Humboldt Laribee Valley 701 Comment
  JEPS32063  Wyethia angustifolia Lincoln Constance 1934-5-29 725 Humboldt Upper Look Prairie (South Fork Eel River, Bull Creek Region); South Fork Eel River, Upper Look Prairie, Bull Creek Region 365 Comment
  UC129416  Wyethia angustifolia Harley P. Chandler June 1901 1494 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  SBBG36549  Wyethia angustifolia H. and M. Dearing 1939-6-23 3695 Humboldt 20 mi E of Arcata Comment
  UC302181  Wyethia angustifolia Joseph P. Tracy 1926-6-6 7577 Humboldt in open forest on road w from Hoopa Valley; Northern Coast Ranges, Hoopa Mountain 914 Comment
  UC582637  Wyethia angustifolia Joseph P. Tracy 1936-6-17 14947 Humboldt grassy slopes on nw foothills of lower slopes Buck Mountain 762 Comment
  UC673077  Xanthium strumarium Joseph P. Tracy 1940-10-5 16747 Humboldt Trinidad 3 Comment
  UC186457  Xanthium strumarium Joseph P. Tracy 1915-9-12 4673 Humboldt Mouth of Laribee Creek Northern Coast Ranges 60 Comment
  SDSU11985  Xerophyllum tenax D. F. Howe 1961-8-2 3123 Humboldt 24 miles east of Orick on Bald Mt. road. 914 Comment
  UC906657  Yabea microcarpa Joseph P. Tracy 1946-1-15 17519 Humboldt Willow Creek; Trinity River Valley 152 Comment
  HSC8422  Zeltnera muehlenbergii D. E. Anderson 1962-7-14 2264 Humboldt Comment
  HSC56958  Zigadenus micranthus Overton, Butler 1979-7-23 9472 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment



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