Search Results — 2000 specimen records retrieved (1347 records with coordinates)
(That's the default maximum. Contact Jason Alexander for larger data requests.)

Results for search: County=HUMBOLDT; Source=All;   
Map/download results:

BerkeleyMapper with layers and yellow flags

Download Options:
Select all records · Select records with coordinates

Include annotations and voucher information

PLEASE NOTE: Due to changes in newer versions of Excel, directly copying text from the above selected results does not produce a usable table.
    Follow these steps:
      1. The contents of the selected results window must be copied into a text editor like TextEdit for Mac or WordPad for Windows
      2. The selected results must be saved as a new text document.
      3. This new text document can now be copied into Excel or imported as a tab delimited text file.

(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.

Click on column header to sort data (* sorts by family); click in leftmost checkbox to select record. CCH Help Page.
A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC78059  Abies grandis Doris K. Kildale 1927-5-13 3128 Humboldt Green Point, Redwood Creek road Comment
  OBI36630  Abies grandis David J. Keil 1983-7-2 17304 Humboldt Patrick's point Comment
  RSA134610  Abies grandis P. C. Everett, E. K. Balls 1959-10-25 23972 Humboldt 10 mi SW from Ferndale on old coast road to Capetown. 457 Comment
  UC502907  Abies magnifica var. shastensis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8963 Humboldt in forest near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC37569  Abronia latifolia J. D. Ackerman 1975-6-10 456 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  HSC59462  Abronia latifolia M. A. Ericksen 1979-5-18 295 Humboldt Samoa Dunes, .5 mi. S of Simpson Timber Company plant entrance Comment
  HSC67579  Abronia latifolia J. P. Smith 1971-10-6 4946 Humboldt End of Murray Rd. in McKinleyville. Comment
  UCR122367  Abronia latifolia George K. Helmkamp, E. A. Helmkamp 2001-7-8 7022 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  HSC69787  Abronia latifolia R. Kalal 1979-5-27 35 Humboldt Along Samoa Blvd. 3 Comment
  RSA0025081  Abronia latifolia I. L. Wiggins 1932-7-19 5888 Humboldt Near Clam Beach, eight miles north of Arcata. Comment
  RSA246857  Abronia umbellata subsp. breviflora Robert F. Thorne, P. Everett 1965-8-7 35216 a Humboldt Samoa Peninsula. 0 Comment
Read comments
Jan 13 2015
  UC205485  Acer glabrum var. glabrum Joseph P. Tracy 1919-9-23 5291 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  HSC57964  Acer glabrum var. torreyi G. L. Clifton, Griswold 1979-7-31 11671 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC58071  Acer glabrum var. torreyi G. L. Clifton, Griswold 1979-8-1 11962 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  CAS-BOT-BC28586  Achillea millefolium David D. Keck 1944-7-11 5494 Humboldt Cape Mendocino 3 Comment
  HSC67891  Achillea millefolium J. P. Smith 1973-5-26 6797 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC75508  Achillea millefolium J. O. Sawyer, R. J. Cole 1977-7-3 3015 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  UCD128345  Achillea millefolium James P. Smith; Advanced Plant Taxonomy Class 1973 1973-5-26 6797 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC419037  Achlys californica H. E. Parks May 1930 752 Humboldt along Van Duzen R. Van Duzen R. Comment
  CAS-BOT-BC400024  Achlys triphylla Mrs. H. E. Wilder 1924-4-26 s.n. Humboldt Carlotta Comment
  HSC56446  Achlys triphylla Griswold, Butler 1979-7-12 7196 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC100397  Achlys triphylla Carl C. Marshall Jun 1886 328 Humboldt Hills. Comment
  SEINET201040 Image available Achnatherum lemmonii J. P. Tracy 1913-5-4 4047 Humboldt Kneeland Prairie 762 Comment
  SEINET260372 Image available Achnatherum lemmonii R. Spellenberg 1990-7-10 10248 Humboldt E edge county 8 mi WSW of Salyer 6 mi S of Berry Summit on CA Hwy 299; USFS 1372 Comment
  UC1103141  Achnatherum lemmonii Joseph P. Tracy 1926-5-9 7463 Humboldt Valley of South Yager Creek 762 Comment
  HSC69893  Acmispon denticulatus Thomas W. Nelson, Jane P. Nelson 1977-7-29 3639 Humboldt Beside SR 36 at head of Larabee Valley 823 Comment
  CAS-BOT-BC412602  Aconogonon alaskanum Volney Rattan No date on label s.n. Humboldt Bet. P.C. [Pilot Creek] & Trinity County Comment
  HSC54873  Aconogonon davisiae G. L. Clifton, Griswold 1979-7-25 10842 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  JEPS60386  Actaea rubra W. L. Jepson 1932-7-29 16445 Humboldt Glenbrook Van Duzen R., Grizzly Flat Comment
  RSA259562  Adiantum aleuticum D. E. Anderson, J. P. Smith 1971-6-28 j- 1250 Humboldt 2.5 miles South of Blue lake along Mad River Comment
  JEPS35159  Adiantum aleuticum Lincoln Constance 1934-6-1 776 Humboldt South Fork Eel River Comment
  SEINET11719536  Adiantum aleuticum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -309 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  CAS-BOT-BC65628  Adiantum jordanii Doris K. Kildale 1928-12-30 6767 Humboldt Phillipsville Comment
  CAS-BOT-BC202606  Aesculus californica Doris K. Kildale 1928-6-29 5056 Humboldt Chalk Mountain Comment
  JEPS40092  Aesculus californica Lincoln Constance 1934-5-24 640 Humboldt lower Look Prairie; South Fork Eel River, Bull Creek Region 121 Comment
  UC577348  Agastache urticifolia Joseph P. Tracy 1932-7-13 10498 Humboldt Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  RSA168824  Ageratina occidentalis Joseph P. Tracy 1950-7-31 19223 Humboldt In woods, Friday Ridge 1220 Comment
  HSC32220  Agoseris grandiflora J. O. Sawyer 1970-6-24 2241 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC44088  Agoseris grandiflora Thomas W. Nelson, Jane P. Nelson 1977-9-3 3723 Humboldt N of Alder Springs 1555 Comment
  UC166821  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1901-6-16 1152 Humboldt at Bucksport; Eureka 0 Comment
  POM161907  Agoseris heterophylla Joseph P. Tracy 1921-6-12 5816 Humboldt Kneeland Prairie 762 Comment
  UC169332  Agoseris heterophylla var. heterophylla Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3625 Humboldt near, (hillside between Hydesville and Alton) Hydesville; Northern Coast Ranges, Alton 30 Comment
  UC180186  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1914-7-5 4558 Humboldt High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  POM126129  Agoseris hirsuta Joseph P. Tracy 1923-6-18 6283 Humboldt Bear Ridge Ridge 305 Comment
  SEINET3134343  Agrostis J. B. Davy, W. C. Blasdale 1899-6-13 5521 Humboldt Near Pepperwood Comment
  UC1103386  Agrostis exarata Joseph P. Tracy 1934-7-21 13478 Humboldt near Samoa; Northern Coast Region, Humboldt Bay 6 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
  UCD52425  Agrostis exarata J. E. Street 1950-6-24 s.n. Humboldt Bryalands. Comment
  UCSC000094  Agrostis exarata Ken Kellman 1969-12-31 s.n. Humboldt Eureka Comment
  SEINET10509880  Agrostis gigantea Joseph P. Tracy 1902-7-4 Tracy 1758 Humboldt Spreading by stolons. Immediate vicinity of Eureka. 0 Comment
  CAS-BOT-BC139504  Agrostis hallii Joseph P. Tracy 1929-7-4 8610 Humboldt Northern Coast Ranges. French Camp Ridge. 1066 Comment
  HSC74861  Agrostis hallii Gail Newton 1981-8-5 2363 Humboldt Near Bug Creek, E Fork. 820 Comment
  SEINET201012  Agrostis hallii Joesph P Tracy 1908-7-30 2882 Humboldt Van Duzen River opposite buck mountain Comment
  UC33716  Agrostis hallii Joseph Burtt Davy and Walter C. Blasdale 1899-6-27 5873 Humboldt Martins Ferry Comment
  UC33734  Agrostis hallii Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5723 Humboldt Supply Creek Comment
  CAS-BOT-BC138874  Agrostis microphylla Joseph P. Tracy 1935-5-25 13857 Humboldt Fort Seward. 106 Comment
  HSC102238  Agrostis oregonensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1164 Humboldt Patterson Meadows 1555 Comment
  RSA152377  Agrostis oregonensis Joseph P. Tracy 1941-8-24 17039 Humboldt South Fork Mountain. Near McKay camp. 1677 Comment
  UC526878  Agrostis oregonensis Joseph P. Tracy 1924-7-4 6711 Humboldt in boggy meadow Northern Coast Ranges, Snow Camp 1371 Comment
  SEINET3127763  Agrostis pallens J. B. Davy 1899-6-13 5521 Humboldt Near Pepperwood Comment
  CAS-BOT-BC138635  Agrostis stolonifera Joseph P. Tracy 1927-7-16 8253 Humboldt Region about Humboldt Bay. Mouth of Elk River. 6 Comment
  HSC70968  Aira caryophyllea R. York 1980-5-17 541 Humboldt Near Le Perron Peak 1066 Comment
  HSC74428  Aira caryophyllea Gail Newton 1980-8-10 2058 Humboldt Near Blake Mountain 1707 Comment
  RSA183535  Aira caryophyllea G. Bos 1965-5-15 256 Humboldt 8 miles west of Berry Summit along U.S. 299. 762 Comment
  UC1541566  Aira caryophyllea Harold E. Parks May 1933 4304 Humboldt Spruce Cove Trinidad Comment
  SEINET14062595  Aira caryophyllea M. A. Baker 1980-5-17 1280 Humboldt Black Mtn. Comment
  UC50681  Aira elegantissima Joseph Burtt Davy 1899-6-19 5684 Humboldt Hupa Mountain Comment
  UC526676  Aira praecox Joseph P. Tracy 1925-8-30 7252 Humboldt Freshwater Lagoon North Coast Ranges 60 Comment
  CAS-BOT-BC460754  Allium amplectens Carl B. Wolf 1937-6-14 8810 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  UC275545  Allium bolanderi Joseph P. Tracy 1923-6-26 6377 Humboldt viz. ridge n Willow Creek (between Willow and Campbell Creeks, Koby's Ranch); Northern Coast Ranges, Brannan Mountain, Koby's Ranch 762 Comment
  HSC98522  Allium bolanderi var. bolanderi Cara Witte 2007-7-8 435 Humboldt Board Camp Mountain. Pack trail 4E26. 1491 Comment
  UC30070  Allium falcifolium Joseph Burtt Davy 1899-6-19 5659 Humboldt summit of ridge, Hoopa Mt. Hoopa Mt. Comment
  CAS-BOT-BC135847  Allium hoffmanii Thomas W. Nelson; James L. Nelson 1973-5-30 977 Humboldt Humboldt-Trinity Co. line, Mt. Lassic (Signal Peak) 1789 Comment
  HSC65952  Allium hoffmanii M. A. Baker 1980-7-11 2799 Humboldt Near Red Mtn. 1433 Comment
  JEPS81076  Allium hoffmanii Thomas W. Nelson and Jane P. Nelson 1980-6-27 5951 Humboldt saddle between two peak e Mount Lassic (non-numbered section e of Sec. 36); Six Rivers National Forest, Blocksburg Quad. 1767 Comment
  SEINET3884719  Allium hoffmanii Thomas W. Nelson, James Nelson 1980-6-10 5418 Humboldt Blocksburg Quad. Along road to Red Mountain 0.5 miles west of junction with Swayback Ridge Road.; 0 1372 Comment
  UC1222697  Allium unifolium Joseph P. Tracy 1950-6-25 18890 Humboldt Burr Valley Comment
  CAS-BOT-BC476628  Allium unifolium D E Breedlove 1961-7-3 642 Humboldt In dense grove of Sequoia sempervirens, along Eel River. 7.4 miles north of Phillipsville 243 Comment
  UCD138614  Allium unifolium K. Esau 1934-5-7 s.n. Humboldt Above Fort Seward. 457 Comment
  HSC42107  Allium validum Thomas W. Nelson, Jane P. Nelson 1977-8-6 3704 Humboldt Along S side of Lassic Peak 1463 Comment
  RSA249506  Allotropa virgata R. F. Thorne, P. C. Everett, K. Thorne 1965-8-5 35132 b Humboldt Wailaki Recreation Site. 610 Comment
  SEINET6196142  Allotropa virgata S. S. Tillett 1956-7-6 619 Humboldt Along ridge 11 mi. from Orleans, on Bar Shanty Road. 1158 Comment
  RSA46860  Alnus rhombifolia Doris K. Kildale 1926-8-8 2457 a Humboldt South Fork of Eel River between mouth of Bull Creek and Dyerville bridge. 91 Comment
  HSC81811  Alnus rubra Kenneth Clark 1980-6-14 692 Humboldt N Fork of Dead Man's Gulch; throughout Shelter Cove 61 Comment
  SFV18531  Alnus rubra D. Waller 2002-5-7 71 Humboldt Arcata. Intersection of L. K. Wood and Redwood Ct. 61 Comment
  UC1197948  Alnus rubra Joseph P. Tracy 1924-8-17 6823 Humboldt Trinidad Northern Coast Ranges 60 Comment
  UCR142775  Alnus rubra H. E. Parks, S. T. Parks 1938-4-1 24126 Humboldt North Coast, Spruce Cove, Trinidad 61 Comment
  RSA46662  Alnus viridis subsp. sinuata Doris K. Kildale 1937-9-26 15377 Humboldt Snow Camp. Comment
  UC54760  Alnus viridis subsp. sinuata Joseph Burtt Davy and Walter C. Blasdale 1899-5 5778 Humboldt Trinity Summit North Coast Ranges (Mendocino, Humboldt, and Del Norte Counties) Comment
  HSC8884  Alopecurus geniculatus True Hoyle 1967-7-15 28267 Humboldt Dolson Ranch, 225 Bayside Rd., Arcata, next to Grade A milking barn 152 Comment
  SEINET11674220  Alopecurus geniculatus J. P. Tracy 1951-1 19524 Humboldt back of Everett Beck house (formerly George Fray) bed of former Goose Lake, Hydesville Comment
  HSC8903  Alopecurus pratensis R. H. Berg 1963-4-11 24 Humboldt Arcata Bottoms, 2 mi. W of Arcata Comment
  SEINET201057  Alopecurus saccatus J. P. Tracy 1942-6-2 17096 Humboldt Alton 30 Comment
  UC582624  Ambrosia chamissonis Joseph P. Tracy 1934-10-21 13687 Humboldt s end Stone Lagoon 3 Comment
  UC582625  Ambrosia chamissonis Joseph P. Tracy 1934-10-21 13688 Humboldt s end, along coast at Dry Lagoon Stone Lagoon 3 Comment
  CAS-BOT-BC142887  Amelanchier alnifolia var. semiintegrifolia Doris K. Kildale 1927-5-14 3192 Humboldt Big Lagoon Comment
  CAS-BOT-BC142889  Amelanchier alnifolia var. semiintegrifolia Carl B. Wolf 1927-8-28 1178 Humboldt At summit of Lord Ellis Road to Blue Lake, junction of Horse Mt. Road Comment
  HSC103292  Amelanchier alnifolia var. semiintegrifolia Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-27 3011 Humboldt Six Rivers National Forest; ~ 0.3 mi. south-southeast of Cold Spring Camp; ~ 3.3 aerial mi. south-southeast of Horse Mtn. Radio Tower. 1426 Comment
  HSC74216  Amelanchier alnifolia var. semiintegrifolia M. A. Baker 1980-7-23 3173 Humboldt Near Orleans Mtn. 1859 Comment
  JEPS44699 Image available Amelanchier alnifolia var. semiintegrifolia Lincoln Constance 1934-6-11 845 Humboldt n Dyerville Flat South Fork Eel River, Bull Creek Region (trail along e bank of South Fork Eel River) Comment
  SDSU19194  Amelanchier alnifolia var. semiintegrifolia Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3011 Humboldt Six Rivers National Forest. From Hwy 299, take Titlow Hill Road (at Berry Summit) ca. 7.5 miles south, west 0.2 miles to Cold Spring. Ca. 0.3 mile south-southeast of Cold Spring. Ca. 3.3 aerial miles south-southeast of Horse Mtn. Radio Tower. 1426 Comment
  CAS-BOT-BC143011  Amelanchier utahensis John Thomas Howell; Alice Eastwood 1937-6-23 4800 Humboldt Little Van Duzen River Comment
  UC1198749  Amelanchier utahensis Joseph P. Tracy 1921-4-30 6022 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC154234  Amelanchier utahensis J. P. Tracy 1909-5-2 2953 Humboldt immediate vicinity Eureka 0 Comment
  UCR32077  Amelanchier utahensis David J. Keil 1983-7-2 17332 Humboldt Horse Mountain Summit SW of Willow Creek 1509 Comment
  HSC8846  Ammophila arenaria D. J. Wilder 1965-4-26 16 Humboldt Mouth of Mad River Comment
  SACT000320  Ammophila arenaria D. Shillingbury 1963-5-11 Humboldt Coastal strand Comment
  CAS-BOT-BC222304  Amsinckia douglasiana H. E. Parks 1933-3-1 4282 Humboldt Trinidad Comment
  UC54750 Image available Amsinckia intermedia Mrs. M. H. Manning 1901-1 156 Humboldt near Hupa; ; near Hupa Comment
  UC1222278  Amsinckia intermedia Joseph P. Tracy 1948-5-31 18023 Humboldt 2 mi w of Bridgeville (roadside, at the big rock) Comment
  UC1239643  Amsinckia intermedia Joseph P. Tracy 1936-6-9 14897 Humboldt hills between the coast and Petrolia 213 Comment
  UC594248  Amsinckia intermedia S. K. Harris, J. P. Tracy and H. S. Yates 1936-6-17 3429 Humboldt nw slopes of Buck Mountain 822 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
  SDSU906  Anagallis arvensis Leslie Hickson 1990-4-15 15 IV90G Humboldt From Oak St., east pf Apple Valley Lane ca. 200 ft. on right side of road under two apple trees. Eureka, Ca. Comment
  HSC98655  Anaphalis margaritacea Cara Witte 2007-7-26 596 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1438 Comment
  JEPS20438  Anaphalis margaritacea W. L. Jepson 1932-8-9 16537 Humboldt Bull Creek 106 Comment
  UC54004  Anaphalis margaritacea Chesnut and Drew 1888-8-8 Humboldt Arcata Comment
  CAS-BOT-BC391771  Anemone deltoidea Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC18008  Anemone deltoidea W. K. Parks Jul 1933 1170 Humboldt S Fork Mtn. Comment
  HSC56211  Anemone deltoidea G. L. Clifton, Griswold 1979-8-2 12216 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC98105  Anemone deltoidea Cara Witte 2007-6-27 365 Humboldt Forest Service Road 5N04. Near Grouse Mountain. Approximately 1/2 mile east of spring. 1561 Comment
  UCR39823  Anemone oregana Dave Bjornbak, M. Mayer, Steve Meredith 1985-5-10 33 Humboldt Horse Mtn. Rd., 8 mi. south of 299 1143 Comment
  HSC41238  Anemone oregana var. oregana Brad Klipfel 1974-5-27 376 Humboldt Horse Mountain Comment
  UC1197382  Angelica genuflexa Joseph P. Tracy 1946-8-25 17635 Humboldt 2 mi s of Fields Landing (near Still Ranch) 6 Comment
  UC585999  Angelica genuflexa Joseph P. Tracy 1927-9-25 8380 Humboldt 2 mi s of Fields Landing (around Humboldt Bay, at Still Ranch); Northern Coast Region, Still Ranch 6 Comment
  CAS-BOT-BC221420  Angelica hendersonii Carl B. Wolf 1937-9-9 9304 Humboldt Coast, 2 mi. So. of Cape Mendocino 6 Comment
  JEPS14103  Angelica hendersonii Joseph P. Tracy 1936-10-24 15205 Humboldt Table Bluff 91 Comment
  HSC71418  Angelica hendersonii J. M. DiTomaso 1980-7-29 1806 Humboldt Elkshead, 2 mi N of Trinidad Comment
  HSC71330  Angelica lucida J. M. DiTomaso 1980-6-7 1571 Humboldt Elkshead, N of Trinidad. Comment
  SD42569  Angelica tomentosa var. hendersonii Carl B. Wolf 1937-8-11 2910 Humboldt 1/2 mile east of Alton 17 Comment
  CAS-BOT-BC271492  Anisocarpus madioides Doris K. Kildale 1928-5-19 5118 Humboldt Chalk Mountain Comment
  HSC5993  Anisocarpus madioides Francis Winter 1960-4-24 Humboldt 1 mi. W of Hoopa on Bair Rd. 305 Comment
  HSC57628  Antennaria howellii G. L. Clifton, Griswold 1979-7-25 10768 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC41291  Antennaria suffrutescens Brad Klipfel 1974-7-27 489 Humboldt Horse Mtn. Comment
  CAS-BOT-BC289126  Anthoxanthum occidentale Joseph P. Tracy 1918-4-21 4882 Humboldt Old Kneeland Road, around Humboldt Bay 304 Comment
  HSC8947  Anthoxanthum odoratum T. L. Ackerman 1964-4-12 34 Humboldt One mi. up a logging road N from an elementary school near Freshwater Corners Comment
  HSC89545  Anthoxanthum odoratum M. Roantree 1985-5-7 43 Humboldt SW side of Trinidad Head, along trail Comment
  SEINET198594  Anthoxanthum odoratum H. E. Parks, ST Parks 1952-4-30 24444 Humboldt Spruce Cove Trinidad Comment
  UCR46782  Antirrhinum vexillocalyculatum subsp. breweri D. M. Thompson 1983-6-26 354 Humboldt Kneeland Road 9.1 mi south of jct with Mountain View Road. 446 Comment
  RSA249385  Antirrhinum vexillocalyculatum subsp. breweri Paul W. Shields 1955-9-25 s.n. Humboldt 17 mi. SE Willow Creek. Comment
  HSC73424  Aphanes occidentalis Robert Kirkpatrick, Doug Renwick 1981-4-3 147 Humboldt 2 mi. N of Coastguard Station on Samoa Blvd. 5 Comment
  UC303163  Aphanes occidentalis Joseph P. Tracy 1925-5-30 7018 Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  HSC58067  Apocynum androsaemifolium G. L. Clifton, Griswold 1979-8-1 11946 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC48762  Aquilegia formosa Brad Klipfel 1973-6-10 98 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  SEINET12104677  Aquilegia formosa E. A. York 1990-1-10 2663 Humboldt USGS Redwood Field Station, Arcata Comment
  HSC18048  Aquilegia formosa var. truncata Francis Winter 1960-4-23 Humboldt E end of bridge crossing Mad River, near Maple Creek 152 Comment
  HSC75964  Arabis glabra Walter Overton, Butler 1979-8-2 12585 Humboldt Near Bret Hole, close to the town of Hoopa. 1554 Comment
  UCD128219  Aralia californica B. L. Kay 1954-8-26 s.n. Humboldt 5 miles west of Gaberville. Comment
  CHSC107101  Arbutus menziesii M. Mitchell 2010-4-9 4 Humboldt Willow Creek @ Highway 299 East. 207 Comment
  HSC74336  Arbutus menziesii M. A. Baker 1980-5-18 1310 Humboldt Near Black Mtn. 1006 Comment
  HSC7598  Arbutus menziesii D. E. Anderson 1962-3-17 1932 Humboldt ca. 3 mi. W of Bridgeville. On S facing bank above the Van Duzen River Comment
  HSC74408  Arceuthobium campylopodum Gail Newton 1980-8-10 2022 Humboldt Near Blake Mtn. 1798 Comment
  UC585939  Arctostaphylos Joseph P. Tracy 1934-3-11 13160 Humboldt French Camp Ridge 1066 Comment
  JEPS38981  Arctostaphylos bakeri subsp. bakeri Joseph P. Tracy 1935-6-23 13991 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
Read comments
Mar 7 2007
  BLMAR276  Arctostaphylos canescens Jennifer Anthony-Wheeler 1999-7-30 276 Humboldt Lacks Creek 1219 Comment
  CAS-BOT-BC23909  Arctostaphylos canescens subsp. sonomensis Walter Knight; Irja Knight; P. V. Wells 1986-8-2 6107 Humboldt Horse Mountain Recreation Area. On Summit Road above junction of Titlow Hill Rd. 1402 Comment
  BLMAR53  Arctostaphylos columbiana Jennifer Anthony-Wheeler 1994-2-14 53 Humboldt King range, growing along KR rd approx 2mi from rd end 228 Comment
  CAS-BOT-BC23745  Arctostaphylos columbiana Doris K. Kildale 1926-8-22 2586 Humboldt Wiregrass Prairie on road from Orick to Martin's Ferry 716 Comment
  CAS-BOT-BC23815  Arctostaphylos columbiana C. Hart Merriam 1921-7-10 s.n. Humboldt 19.5 miles south of Garberville, South fork of the Eel River. Comment
  RSA622677  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27669 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  RSA152310  Arctostaphylos columbiana var. columbiana Joseph P. Tracy 1945-5-15 17510 Humboldt Kneeland Prairie. 671 Comment
  RSA254754  Arctostaphylos columbiana var. columbiana Thomas W. Nelson 1975-3-20 1750 Humboldt Along Kneeland Rd. just south of its junction with Maple Creek Rd. Losey property. 671 Comment
  UC585933  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1934-7-9 13331 Humboldt ridge 5 mi s Harris (on road towards Bell Springs); North Coast Ranges 762 Comment
  HSC101663  Arctostaphylos glandulosa var. cushingiana J. P. Smith, J. O. Sawyer 2011-4-23 13124 Humboldt Kings Peak Road near Shelter Cove. 523 Comment
  SD42559  Arctostaphylos hispidula Carl B. Wolf 1937-8-13 9226 Humboldt 8.0 miles east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  JEPS38950  Arctostaphylos hookeri subsp. montana Joseph P. Tracy 1933-8-6 12958 Humboldt French Camp Ridge 1066 Comment
  RSA633017  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27811 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  POM367342  Arctostaphylos manzanita subsp. manzanita Thomas W. Nelson, Jane Nelson, A. Nelson 1976-2-21 2253 Humboldt Tish-Tang Campground. Comment
  UC1196874  Arctostaphylos nevadensis Joseph P. Tracy 1933-7-11 12670 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC40075  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1933-8-6 12958 Humboldt French Camp Ridge 1066 Comment
  SEINET11989089  Arctostaphylos nevadensis subsp. knightii R. Gankin, Hildreth, W. R. 1967-1 1172 Humboldt 21.4 mi E of US 101 on Bald Hills Rd from Orick, French Camp Ridge Comment
  CAS-BOT-BC46626  Arctostaphylos patula Doris Kildale Gillespie 1931-6-7 10594 Humboldt South Fork Mt. Blake Lookout. 1726 Comment
  JEPS38935  Arctostaphylos patula Joseph P. Tracy 1935-7-14 14063 Humboldt Horse Mountain 1432 Comment
  UC1198667  Arctostaphylos patula Joseph P. Tracy 1942-9-6 17313 Humboldt along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  UC585959  Arctostaphylos patula Joseph P. Tracy 1935-7-14 14063 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC43998  Arctostaphylos uva-ursi Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  CAS-BOT-BC47207  Arctostaphylos uva-ursi W. R. Dudley 1899-6-1 s.n. Humboldt Eureka penisnula. Comment
  HSC28130  Arctostaphylos uva-ursi J. D. Ackerman, A. M. Montalvo 1973-3-27 42 Humboldt 1.5 mi. N of Manila Comment
  HSC77903  Arctostaphylos uva-ursi L. P. Janeway 1984-5-16 799 Humboldt N Spit of Humboldt Bay, on the W side of Samoa Road ca. 1/4 mi. NW of the boat ramp 5 Comment
  UCD52051  Arctostaphylos uva-ursi Roman Gankin 1965-8-6 555 Humboldt 1.3 miles south of Samoa, Samoa Peninsula. Comment
  SEINET2031082 Image available Arctostaphylos uva-ursi Joseph P. Tracy 1901-1 1061 Humboldt Region about Humboldt Bay 0 Comment
  RSA741641  Arctostaphylos uva-ursi var. coactilis Patricia Wilder 1968-8-21 4409 Humboldt Northern coastal arm of Humboldt Bay, ca. 1 mile SW of Samoa, in sand dunes. 15 Comment
  CAS-BOT-BC48256  Arctostaphylos viscida subsp. viscida Doris K. Kildale 1926-8-15 2549 Humboldt Hoopa Mountain 792 Comment
  UC1173713  Arctostaphylos viscida subsp. viscida Joseph P. Tracy 1939-4-29 16264 Humboldt Orleans 121 Comment
  CHSC79650  Arctotheca calendula Gordon Leppig 2000-4-9 1288 Humboldt Arcata. Union St. at 7th St. South of Phillips House. UTM zone 10, 4525N, 409E. 24 Comment
  CAS-BOT-BC526229  Arctotheca calendula G. D. Barbe; T. C. Fuller 1989-6-8 4321 Humboldt Larry Pries dairy, 3.4 mi W of Main Street, on Centerville Beach Road, Ferndale Comment
  CDA6803  Arctotheca calendula G. D. Barbe 1988-7-18 4293 Humboldt Ferndale: Larry Pries Dairy, 3.4 mi. W of Main St, on Centerville Beach Road. 0 Comment
  HSC8972  Aristida oligantha DWC 1956-8-2 Humboldt Garberville - Laughlin soil Comment
  HSC16901  Armeria maritima subsp. californica J. W. Johnson 1962-5-9 1337 Humboldt Arcata, stabilized ridge 3, Christenson Farm, Samoa Peninsula Comment
  HSC32042  Armeria maritima subsp. californica J. D. Ackerman 1974-5-25 267 Humboldt About 0.25 mi. S of Lufenholtz Co. Beach, off Scenic Dr. between Trinidad and Moonstone Beach. Comment
  HSC47944  Arnica cernua Brad Klipfel 1974-5-27 436 Humboldt Horse Mtn. Comment
  HSC34913  Arnica cordifolia Thomas W. Nelson, Jane P. Nelson 1975-5-24 1852 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC73701  Arnica discoidea M. A. Baker 1980-7-23 3142 Humboldt Near Orleans Mtn. 1859 Comment
  HSC102702  Arrhenatherum elatius J. P. Smith 2013-6-16 13730 Humboldt Along State Route 36, adjacent to the Dinsmore Airport. 735 Comment
  CAS-BOT-BC84835  Artemisia douglasiana Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1199394  Artemisia douglasiana Joseph P. Tracy 1933-8-6 12946 Humboldt French Camp Ridge 1066 Comment
  HSC38544  Artemisia douglasiana R. Sutherland 1976-8-13 24 .13876 Humboldt Mouth of Redwood Creek at South Fork of Eel River 27 Comment
  UCD20406  Artemisia douglasiana Donald C. Hagar 1957-8-6 206 Humboldt 10 miles ENE of Hoopa, Jackson Hole. 1645 Comment
  JEPS36966  Artemisia dracunculus W. L. Jepson 1921-9-10 9464 Humboldt 7 or 8 mi. s. Garberville (near Indian Creek. Redwood Flat, west bank of S. Fork Eel.); South Fork Eel River Comment
  HSC46965  Artemisia pycnocephala J. P. Smith, Thomas W. Nelson 1977-6-30 9216 Humboldt Samoa Peninsula just E of the drag strip. Comment
  HSC4746  Artemisia pycnocephala David Adams 1960-7-17 Humboldt 2 miles S of Samoa 0 Comment
  UC665565  Artemisia pycnocephala H. E. Parks 1941-8-1 24186 Humboldt Little River State Park Comment
  BLMAR313  Artemisia suksdorfii Jennifer Anthony-Wheeler 2002-8-9 313 Humboldt Lost Coast Headland, trail to guthrie creek 30 Comment
  HSC76047  Aruncus dioicus var. acuminatus Overton, Butler 1979-8-2 12547 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC98066  Aruncus dioicus var. acuminatus Cara Witte 2007-7-12 515 Humboldt Forest Service Road 5N10. 2 miles east of intersection with National Forest 1. 1339 Comment
  CAS-BOT-BC453342  Aruncus dioicus var. vulgaris Doris K. Kildale 1928-6-24 7071 Humboldt Redwood Creek at Berry's 274 Comment
  HSC41318  Asarum caudatum Brad Klipfel 1974-9-2 533 Humboldt Horse Mtn. Comment
  HSC56978  Asarum caudatum Overton, Butler 1979-7-23 9513 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC63149  Asarum caudatum M. A. Baker 1979-6-28 941 Humboldt Comment
  HSC98125  Asarum caudatum Cara Witte 2007-6-28 379 Humboldt FS Road 5N10. Approximately 0.5 mi E of intersection with National Forest 1. 1426 Comment
  CAS-BOT-BC65946  Aspidotis densa Carl D. Duncan 1920-9-22 s.n. Humboldt Trinity River, Hoopa Valley Comment
  HSC1053  Aspidotis densa Elrid H. Spinas 1948-5-22 41 Humboldt Horse Mtn. Comment
  POM182350  Aspidotis densa Joseph P. Tracy 1912-7-26 3849 Humboldt Kneeland Prairie 762 Comment
  UC302329  Aspidotis densa Charlotte M. Wilder 1912-10-1 Humboldt ca. 6 mi above Kuntz P.O. (Upper Van Duzen River) 914 Comment
  RSA167195  Aster occidentalis Joseph P. Tracy 1941-8-24 17040 Humboldt South Fork Mountain. Near McKay camp. 1677 Comment
  POM214878  Astragalus rattanii var. rattanii Joseph P. Tracy 1932-6-19 10245 Humboldt Buck Mountain, lower foothills of its northwest slope 762 Comment
  RSA475237  Astragalus rattanii var. rattanii Aaron Liston, Sara Meury 1988-5-29 746 -1 Humboldt Grizzly Creek Redwoods State Park; banks of Van Duzen River. 150 Comment
  HSC100358  Astragalus umbraticus J. McRae 1996-7-25 Humboldt Orleans Ranger District, off F.S. Rd. 11N16-C at mile post 1. 707 Comment
  HSC14595  Astragalus umbraticus D. E. Anderson 1963-9-29 2851 Humboldt Fish Lake. Comment
  HSC64136  Astragalus umbraticus J. P. Smith, J. O. Sawyer, R. J. Cole 1977-7-2 3054 Humboldt Rd. 11N17 between Dagsaw Springs and Divide Lake 793 Comment
  JEPS109394  Astragalus umbraticus Dean W. Taylor 2009-7-14 20674 Humboldt vicinity Lake Prairie, reached via Guy Kerr Ranch Road off Snow Camp Road 1133 Comment
  UC1174493  Astragalus umbraticus Volney Rattan 1878-1 Humboldt Comment
  HSC56967  Asyneuma prenanthoides Overton, Butler 1979-7-23 9491 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC74724  Asyneuma prenanthoides Gail Newton 1981-8-6 2408 Humboldt Near Mad River. 1308 Comment
  RSA24191  Athyrium filix-femina subsp. cyclosorum C. B. Wolf 1941-3-2 9983 Humboldt Along north bank of the Van Duzen River, 4 3/10 miles above Carlotta. 46 Comment
  HSC41335  Athyrium filix-femina var. cyclosorum Brad Klipfel 1974-9-7 565 Humboldt Horse Mtn., E fork of Willow Creek. Comment
  HSC44050  Athyrium filix-femina var. cyclosorum Thomas W. Nelson, Jane Nelson 1977-6-19 3493 Humboldt Above Alder Springs, N of pond 1585 Comment
  HSC976  Athyrium filix-femina var. cyclosorum Francis Winter 1960-4-24 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  UC503069  Athyrium filix-femina var. cyclosorum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9008 Humboldt near McKay Camp S Fork Mt; Northern Coast Ranges 1676 Comment
  HSC70632  Athysanus pusillus R. York 1980-5-18 584 Humboldt Near Black Mtn 792 Comment
  UC146161  Atriplex gmelinii var. gmelinii Joseph P. Tracy 1905-10-1 2393 Humboldt edge of Humboldt Bay at mouth Elk River (region about Humboldt Bay); Northern Coast Region, Humboldt Bay, mouth Eel River 0 Comment
  HSC35625  Atriplex leucophylla Thomas W. Nelson, James Nelson 1975-8-5 2138 Humboldt Along S spit of Humboldt Bay ca. 1 mi. N of Table Bluff. Comment
  HSC93742  Atriplex prostrata Gordon Leppig, Sylvia Leppig 1998-9-17 1100 Humboldt Arcata Marsh and Wildlife Sanctuary, W of railroad trestle 2 Comment
  POM312956  Azolla filiculoides Malcolm A. Nobs, S. Galen Smith 1949-8-9 1246 Humboldt Clam Beach Comment
  UC164794  Baccharis glutinosa J. P. Tracy 1900-9-3 937 Humboldt immediate vicinity of Eureka 0 Comment
  JEPS32397  Baccharis glutinosa W. L. Jepson 1936-8-11 17867 Humboldt spot on mountainside, Philipsville South Fork Eel River Comment
  UC1222974  Baccharis pilularis Joseph P. Tracy 1949-10-16 18589 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UCD129438  Baccharis pilularis subsp. consanguinea Linda M. Barker 1976-9-3 1691 Humboldt 3 miles west of Arcata. Comment
  HSC39776  Baccharis pilularis subsp. pilularis Peter Sorensen 1976-7-12 Humboldt King Salmon Comment
  HSC39790  Bellis perennis Peter Sorensen 1976-6-16 Humboldt Woodley Island Comment
  JEPS25618  Bellis perennis Rimo Bacigalupi 1959-7-7 7251 Humboldt immediately behind bluff headland of Cape Mendocino Cape Mendocino 30 Comment
  UC1199304  Bellis perennis Joseph P. Tracy 1924-3-9 6617 Humboldt Kneeland Prairie, near Lawrence Creek Northern Coast Ranges 762 Comment
  CAS-BOT-BC48158  Bensoniella oregona R. Bacigalupi; L. Constance; Reid Moran; R. L. Rodriguez; Joe Tracy; Sherwin Carlquist 1951-6-14 3410 Humboldt Bald Mountain ridge - in bog, edge of forest at High Prairie, on long high ridge between Mad River and Redwood Creek 1066 Comment
  HSC62832  Bensoniella oregona William Davilla 1980-10-16 1219 Humboldt Snow Camp Mtn. 1390 Comment
  HSC40854  Berberis aquifolium Thomas W. Nelson 1976-7-9 2995 Humboldt Along ridge S of E peak of Mtn. Lassic group, (Signal Pk.). 1707 Comment
  HSC41476  Berberis aquifolium Richard Runyon 1977-4-23 10 Humboldt 2.5 mi. S of Shelter Cove Road, S fork of Bear Creek at Wailaki Campground 561 Comment
  BLMAR722  Berberis aquifolium var. repens Jennifer Wheeler 2014-4-9 722 Humboldt Lacks Creek, Along Pine Ridge Rd 1091 Comment
  HSC3352  Berberis nervosa Francis Winter 1960-4-23 Humboldt 2 mi. E of Korbel 46 Comment
  HSC3354  Berberis nervosa S. Estes 1964-4-25 31 Humboldt May Ranch, 2 mi. N of Bridgeville 305 Comment
  SDSU13768  Berberis nervosa D. F. Howe 1963-5-26 3555 Humboldt 3.2 miles east of Orick on Bald Hill Road. 457 Comment
  CAS-BOT-BC75806  Berberis pinnata Doris K. Kildale; L. B. Kildale 1930-5-11 9540 Humboldt The Bald Hills near Tomlinson's. 792 Comment
  HSC42013  Berberis pinnata M. A. Baker 1977-4-23 173 Humboldt 2.5 mi. S of Shelter Cove Rd., S fork of Bear Creek at Wailaki Campground 561 Comment
  SBBG226  Blechnum spicant H. and M. Dearing 1939-5-26 3450 Humboldt near Bishop Pines Auto Court Comment
  SD112347  Blechnum spicant Darley F. Howe 1961-8-1 3109 Humboldt Three mi. N of Arcata on Hwy. 101. Comment
  JEPS53080  Boechera Joseph P. Tracy 1917-9-2 4838 Humboldt Grouse Mt. Northern Coast Ranges 1524 Comment
  CHSC110704  Boechera subpinnatifida Dean Wm. Taylor 2004-6-24 19131 Humboldt Horse Mountain, along Titlow Hill Road 0.4 miles north from the junction with the road to the mountain summit; Grouse Mountain. 1310 Comment
  POM256441  Boisduvalia densiflora var. densiflora Joseph P. Tracy 1937-7-19 15463 Humboldt Larrabee Valley 732 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
  CAS-BOT-BC420263  Boykinia occidentalis Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  RSA246661  Boykinia occidentalis R. F. Thorne, P. Everett 1965-8-5 35127 -a Humboldt Wailaki Recreation site. 518 Comment
  SBBG26977  Boykinia occidentalis R. S. Ferris 1937-8-21 9390 Humboldt above beach, Shelter Cove Comment
  HSC79476  Boykinia occidentalis Kenneth Clark 1980-3-23 530 Humboldt Along S Fork of Dead Man's Gulch 61 Comment
  CDA30214  Brassica nigra M. K. Beyers, I. Shepardson 2009-9-13 243 Humboldt In dry portion of the western side of the Eel River, near the base of the entrance of an inlet creek, that runs underneath State Route 254 (Avenue of the Giants) and Highway 101 here. 0 Comment
  HSC6580  Brassica rapa J. L. Baker 1965-3-9 5 Humboldt 4 mi. N of Arcata on N Bank Rd. Comment
  HSC6582  Brassica rapa D. E. Anderson 1962-2-10 1922 Humboldt 1.5 mi. S of Trinidad Comment
  HSC6584  Brassica rapa Richard Steele 1962-2-25 2 Humboldt Arcata, 0.5 mi. W of HSU campus 15 Comment
  POM289092  Brickellia californica Lyman Benson 1928-7-11 456 Humboldt Weott Ranger Station, Mt. Range: Seaward N Coast; Drainage Area: S Fork Eel River. 61 Comment
  RSA254779  Brickellia californica Thomas W. Nelson 1973-9-3 1124 Humboldt McKeown Ranch north of Dinsmore; along flood plain of Mad River Comment
  HSC67027  Briza maxima J. P. Smith 1970-6-7 3808 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  UCD57276  Briza maxima Joseph P. Tracy 1950-5-30 18711 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UCR274950  Briza maxima Charity A. Hartshorn 2016-4-24 25 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  HSC100548  Brodiaea capitata Carl C. Marshall 1885-1 4 Humboldt Table Bluff. Comment
  UC146225  Brodiaea elegans subsp. elegans Joseph P. Tracy 1908-6 2855 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  HSC23716  Brodiaea elegans subsp. elegans Tim Baroni 1971-6-25 36 Humboldt 8 mi. E of Petrolia Comment
  JEPS7726  Brodiaea elegans subsp. elegans W. L. Jepson 1902-6 1960 Humboldt Hupa Road Redwood Creek (Redwood Creek) Comment
  HSC102646  Bromus carinatus var. carinatus J. P. Smith 2009-5-31 12607 Humboldt Bald Hills Road. 713 Comment
  UC37587  Bromus carinatus var. carinatus Joseph Burtt Davy 1899-6-21 5725 Humboldt Hupa Valley, Supply Creek Supply Creek; Hupa Valley, Supply Creek Comment
  HSC9214  Bromus carinatus var. marginatus R. I. Bonn 1965-10-1 Humboldt 2 mi. N of Bridgeville on May Ranch. 732 Comment
  UCD59082  Bromus carinatus var. marginatus Joseph P. Tracy 1950-6-15 18786 Humboldt Mail Ridge. North of Harris 7 miles. 1036 Comment
  UCD59215  Bromus carinatus var. marginatus R. Tofsrud 1948-9-1 s.n. Humboldt Road between Horse Mt. and Grouse Mt. 1371 Comment
  UC53638  Bromus carinatus var. maritimus J. Burtt Davy 1899-7-30 6179 Humboldt opposite Eureka; North Coast Ranges Comment
  HSC45110  Bromus diandrus R. Sutherland 1978-5-13 4 .13578 Humboldt Mattole River. 282 Comment
  HSC48064  Bromus diandrus Thomas W. Nelson 1978-4-23 3884 Humboldt N of Samoa Comment
  HSC92385  Bromus diandrus T. M. Mingo May 1965 Humboldt Edge of parking area at Luffenholtz Beach. Comment
  HSC9269  Bromus diandrus J. W. Johnson 1962-4-8 1222 Humboldt Arcata, Mad River Co. Park Comment
  UCD58512  Bromus diandrus Linda M. Barker 1976-4-30 1403 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC9253  Bromus hordeaceus R. J. Vernimen 1963-4-27 42 Humboldt 0.5 mi. off Samoa Rd., behind the Georgia-Pacific dump, 7.5 mi. SW of Arcata, along logging road Comment
  UC34065  Bromus hordeaceus J. P. Tracy 1901-6-16 1146 Humboldt immediate vicinity of Eureka 0 Comment
  JEPS85494  Bromus laevipes L. R. Heckard with T. I. Chuang 1968-7-5 1984 Humboldt 4.3 mi n of Harris Road (Mail Ridge Road); Mail Ridge Road Comment
  HSC9265  Bromus racemosus E. W. Styskel 1964-5-7 78 Humboldt 2 mi. S of Samoa near Samoa Rd. Comment
  UC188957  Bromus racemosus J. Burtt Davy and W. C. Blasdale 1899-7-30 6188 Humboldt Bear River Ridge; North Coast Ranges, Bear River Ridge Comment
  CAS-BOT-BC161533  Bromus tectorum Joseph P. Tracy 1925-5-30 7039 Humboldt Northern Coast Ranges. Larrabee Valley. 701 Comment
  UC1103350  Bromus tectorum Joseph P. Tracy 1933-5-18 12187 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  CAS-BOT-BC185516  Bromus vulgaris Harley P. Chandler 1901-5-1 1177 Humboldt North Coast Ranges. Humboldt Bay. 30 Comment
  HSC100142  Buddleja davidii G. F. Hrusa, C. E. Dogwin 2010-12-31 18278 Humboldt Kahlstrom Avenue, Westhaven 96 Comment
  RSA647567  Cakile maritima var. maritima William Gilbert 1970-6-3 s.n. Humboldt 101 Hwy, 10 miles S [of] Klamath River. Comment
  HSC97775  Calamagrostis foliosa C. Gillevan, C. Sander 2003-8-13 330 Humboldt Cliffs above Randal Creek, Cooksie Creek, and Gitchel Creek, in the King Range Area 9 Comment
  CAS-BOT-BC185239  Calamagrostis koelerioides Joseph P. Tracy 1935-7-24 14192 Humboldt Trinity Summit. Near Ranger Station. 1828 Comment
  UCD57250  Calamagrostis koelerioides A. H. Murphy 1948-9-3 s.n. Humboldt southeast of Berry's summit, junction Horse Mtn. road and Horse Mtn. Mine roads. Comment
  HSC17625  Calandrinia ciliata Francis Winter 1960-5-7 Humboldt French Camp Ridge, 3 mi. W of Burnt Ranch 671 Comment
  HSC95654  Calandrinia ciliata Andrea Pickart 2002-4-3 43 Humboldt Lanphere Dunes 25 Comment
  UC161051  Calandrinia ciliata Joseph P. Tracy 1904-4-24 2023 Humboldt dunes of beach at Humboldt Bay; Northern Coast Region Comment
  HSC35505  Callitriche heterophylla G. W. Clason 1962-4-25 Humboldt Hwy. 101 between Arcata and Eureka. Comment
  CAS-BOT-BC80381  Calocedrus decurrens Carl D. Duncan 1920-9-27 s.n. Humboldt near Hoopa Comment
  HSC56944  Calocedrus decurrens Overton, Butler 1979-7-23 9433 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC57885  Calocedrus decurrens Overton, Butler 1979-7-31 11434 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC73163  Calocedrus decurrens Gail Newton 1980-6-17 207 Humboldt Near Onion Mtn. 1341 Comment
  OBI7412  Calocedrus decurrens H. Wiedman 1966-1 s.n. Humboldt Near the Hoopa Valley Indian Reservation 366 Comment
  UCR84791  Calochortus amabilis Kathy Harper 1992-5-14 s.n. Humboldt S-facing road embankment on Hwy 254 (parallel to Hwy 101), where road follows S fork of Eel River, c. 1 mi north of Phillipsville 91 Comment
  HSC15381  Calochortus tolmiei D. E. Anderson 1965-5-8 3653 Humboldt 3.5 mi. N of Willow Creek along rd. running along E of Trinity River Comment
  HSC98542  Calochortus tolmiei Cara Witte 2008-6-9 699 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1509 Comment
  HSC99312  Calochortus tolmiei M. A. Baker 1980-6-7 1813 Humboldt Near Brush Mtn. 1128 Comment
  UC1197674  Calochortus tolmiei Joseph P. Tracy 1930-7-6 8839 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC494364  Calochortus tolmiei Joseph P. Tracy 1917-5-30 4813 Humboldt Sand dunes west of Dows Prairie 15 Comment
  HSC15330  Calochortus tolmiei D. E. Anderson 1962-5-1 2192 Humboldt 1 mi. E of junction of Redwood Creek road and road to Hoopa Comment
  UC1196205  Caltha biflora Joseph P. Tracy 1932-7-16 10638 Humboldt At Corral Prairie, Trinity Summit; Klamath Mountains. 1524 Comment
  CAS-BOT-BC175759  Caltha leptosepala Joseph P. Tracy 1930-7-16 8971 Humboldt South Fork Mountain; at McKay Camp 1676 Comment
  UC750741  Calycadenia fremontii Henry M. Pollard 1945-8-31 Humboldt Orleans to Somes Bar Comment
  UC1222959  Calycadenia truncata Joseph P. Tracy 1941-9-1 17009 Humboldt near Don Juan Point (along Trinity River); Trinity River 335 Comment
  HSC100582  Calypso borealis Carl C. Marshall Apr 1886 198 Humboldt Damp woods. Comment
  HSC16565  Calypso bulbosa Eldrid H. Spinas 1948-6-16 70 Humboldt Horse Mtn. Comment
  HSC65202  Calypso bulbosa T. Jimerson, J. Pageau 1979-5-1 446 Humboldt On FS 6N34C, Orleans Ranger District, Orleans Comment
  UCSB29353  Calypso bulbosa var. occidentalis Phelps, M. 1972-3-19 Humboldt 1.5 mi. from Garberville; along Old Briceland Rd; 0.5 mi. north of roadside 213 Comment
  RSA304262  Calypso bulbosa var. occidentalis James R. Shevock 1972-3-27 1481 Humboldt Redwood State Park Comment
  HSC32094  Calystegia occidentalis subsp. occidentalis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5706 Humboldt McKeown Ranch, N of Dinsmore Comment
  UC23151  Calystegia occidentalis subsp. occidentalis Harley P. Chandler June, 1901 1418 Humboldt Klamath River , Klamath River (North Coast Ranges) 304 Comment
  CDA39890  Calystegia silvatica subsp. disjuncta Gordon Leppig 2001-7-1 1578 Humboldt Northern California - North Coast Region; Eureka, Waterfront Drive, just behind and 100 m north of the Humboldt County Library. 0 Comment
  SEINET3992218  Camassia leichtlinii Unknown 1942-5-16 17331 Humboldt Redway (near Garberville) 152 Comment
  UC302169  Camassia quamash Joseph P. Tracy 1925-7-5 7179 1/2 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC16439  Camissonia cheiranthifolia D. E. Anderson 1961-9-9 1795 Humboldt Big Lagoon County Park Comment
  HSC45064  Camissonia ovata R. Sutherland 1978-3-30 2 .30378 Humboldt Mckee Flat 293 Comment
  CAS-BOT-BC160246  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Doris K. Kildale; L. B. Kildale 1930-3-27 9523 Humboldt Beach near North Jetty Comment
  SEINET201623 Image available Campanula prenanthoides Joseph P. Tracy 1934-8-23 13600 Humboldt Willow Creek Canyon. 457 Comment
  SEINET10463059  Campanula prenanthoides Vollmer VOLLMER 149 Humboldt ON ROAD TO BALD MTN, E OF KORBEL Comment
  UC416597  Campanula prenanthoides Harley P. Chandler 1901-6-14 1476 Humboldt Orleans to Somes Bar; Klamath River 304 Comment
  UC602533  Campanula prenanthoides Joseph P. Tracy 1933-7-26 12927 Humboldt Grouse Creek Basin 762 Comment
  UC34826  Campanula scouleri Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  UC602559  Campanula scouleri Joseph P. Tracy 1926-6-27 7691 Humboldt Horse Mountain 1219 Comment
  SEINET10463751  Campanula scouleri James P. Smith 1977-7-3 Smith, Jr. 9250 Humboldt Six Rivers National Forest: along the road to Onion Lake, just above Blue Lake. T10N R4E Sec. 15 975 Comment
  HSC98634  Cardamine californica var. californica Cara Witte 2008-7-16 918 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  POM214829  Cardamine californica var. integrifolia Victor Duran 1933-5-11 3405 Humboldt Van Duzen River, near Bridgeville. Comment
  CAS-BOT-BC37890  Cardamine oligosperma Alice Eastwood 1907-4-21 21 Humboldt Trinidad. Comment
  HSC90227  Cardamine oligosperma L. Watson, J. Meninga Mar 1991 13 Humboldt Near Manila, Mad River slough and dunes, SW edge of parking lot. Comment
  SEINET201070  Carduus pycnocephalus Joseph P. Tracy 1936-6-28 15008 Humboldt Hungry Hollow on Bald Mt 762 Comment
  CAS-BOT-BC18519  Carex abrupta Joseph Prince Tracy 1937-7-29 15580 Humboldt South Fork Mountains. McKay Camp. 1676 Comment
  CHSC43008  Carex aquatilis var. dives L. P. Janeway 1987-7-30 2533 Humboldt At Dry Lagoon. 3 Comment
  HSC71669  Carex concinnoides Gail Newton 1980-6-16 200 Humboldt Near Onion Mtn. 1280 Comment
  JEPS79838  Carex concinnoides Joseph P. Tracy 1926-5-2 7447 Humboldt near Ruby Creek (Northern Coast Ranges, Willow Creek Canyon); Northern Coast Ranges, Willow Creek Canyon 609 Comment
  CAS-BOT-BC34380  Carex cusickii Joseph Prince Tracy 1938-7-6 16023 Humboldt Big Lagoon. 6 Comment
  HSC61629  Carex cusickii Ruby Van Deventer 1959-6-20 Humboldt Humboldt/Del Norte County line, Onion Lake Comment
  UC1100648  Carex cusickii Malcolm A. Nobs, S. Galen Smith 1949-8-3 1197 Humboldt marsh and bog land at the southern outskirts of Eureka Eureka Comment
  CAS-BOT-BC34437  Carex deflexa var. boottii Joseph Prince Tracy 1935-6-2 13921 Humboldt Big Lagoon. 30 Comment
  UC194804  Carex densa Joseph P. Tracy 1913-6-20 4231 Humboldt lower foothills of nw slope of Buck Mountain Northern Coast Ranges, Buck Mountain 762 Comment
  UC1103110  Carex deweyana subsp. leptopoda Joseph P. Tracy 1932-7-17 10677 Humboldt Trinity Summit, ridges E of Corral Prairie 1828 Comment
  SEINET7558331 Image available Carex exsiccata L. P. Janeway 2003-7-30 7941 Humboldt Grouse Mountain Quad, High North Coast Ranges. On the southwest side of Titlow Hill Road 1.1 km south of Cold Springs. 1426 Comment
  SEINET7558590 Image available Carex feta Alice Eastwood, John Thomas Howell 1937-6-22 4743 Humboldt Near Blocksburg. Comment
  CHSC45239  Carex geyeri L. P. Janeway 1984-6-17 845 Humboldt On ridge east of Horse Mtn. 1432 Comment
  CAS-BOT-BC146592  Carex gynodynama Joseph P. Tracy 1927-5-8 7969 Humboldt Phillipsville; facing South Fork of Eel River 121 Comment
  JEPS25966  Carex harfordii Joseph P. Tracy 1927-7-17 8279 Humboldt Three Cabins: grassy slopes on lower western foothills of Chaparral Mountain 457 Comment
  POM292662  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Bull Creek, at South Fork of the Eel River Comment
  UC1103595  Carex hendersonii Joseph P. Tracy 1942-6-15 17143 Humboldt on the Briceland road Redwood Creek 121 Comment
  CHSC90271  Carex hoodii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8544 Humboldt North Coast Ranges. Along Forest Road 13N01 18 miles from junction with State Route 96. 1066 Comment
  CAS-BOT-BC35567  Carex jonesii Joseph Prince Tracy 1932-7-15 10573 Humboldt Trinity Summit, at Corral Prairie 1584 Comment
  UCR52391  Carex laeviculmis L. P. Janeway 1983-5-15 296 Humboldt North Coast, Riparian bend of Mad River on south side, near the Fish Hatchery Road & across from Blue Lake 24 Comment
  CHSC93148  Carex lenticularis var. impressa Thomas W. Nelson; Jane P. Nelson 1987-6-11 8584 Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  RSA88654  Carex leptopoda Joseph P. Tracy 1935-6-8 13937 Humboldt Eureka. 61 Comment
  HSC58794  Carex luzulina Overton, Butler 1979-7-31 11460 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  BLMAR69  Carex lyngbyei Jennifer Anthony-Wheeler 1994-5-18 69 Humboldt Samoa/manilla dunes, growing intermittently wet area in the Samoa Dunes rec. area 6 Comment
  CAS-BOT-BC31664  Carex lyngbyei Joseph Prince Tracy 1938-7-15 16069 Humboldt In salt marsh and edges of sloughs, Mouth of Eel River. 3 Comment
  UC303015  Carex mendocinensis Joseph P. Tracy 1926-6-20 7632 Humboldt Northern Coast Ranges. Horse Mountain. Comment
  CAS-BOT-BC32133  Carex multicaulis Joseph Prince Tracy 1941-4-11 16857 Humboldt Trinity River Valley at Willow Creek. 152 Comment
  HSC44076  Carex multicostata Thomas W. Nelson, James Nelson 1976-7-26 3034 Humboldt W of Mount Lassic (Signal Peak) 1707 Comment
  UC249755  Carex multicostata Joseph P. Tracy 1924-5-4 6664 Humboldt Bridgeville Northern Coast Ranges 243 Comment
  UC562667  Carex multicostata Harold E. Parks and Joseph P. Tracy 1935-6-16 11271 Humboldt lower nw slopes Buck Mt. 792 Comment
  CAS-BOT-BC119718  Carex nervina Joseph Prince Tracy 1932-7-16 10627 Humboldt Trinity Summit, Fir woods near Corral Prairie. 1584 Comment
  CHSC40158  Carex nudata L. P. Janeway 1983-6-22 322 Humboldt Along the north edge of Mad River, near jct of North Bank Road and Hunts Drive. 4 Comment
  SEINET11632152  Carex nudata H. P. Chandler 1901-1 1235 Humboldt Redwood Belt, North Coast Ranges 91 Comment
  UC1133418  Carex obnupta H. S. Yates 1936-6-18 5730 Humboldt near mouth Little River; Eureka Quadrangle Comment
  HSC7070  Carex obnupta J. W. Johnson 1961-8-17 1055 Humboldt Arcata, Hollow 10, W.M. Lanphere Farm, Samoa Peninsula. Comment
  UC249734  Carex obnupta Joseph P. Tracy 1923-9-2 6541 Humboldt McClellan Mt. Northern Coast Ranges 914 Comment
  CAS-BOT-BC119232  Carex pachystachya Joseph Prince Tracy 1936-7-5 15043 Humboldt Grouse Mountain. 1524 Comment
  CAS-BOT-BC119243  Carex pachystachya Joseph Prince Tracy 1939-7-9 16342 Humboldt Snow Camp 1402 Comment
  UC562644  Carex pachystachya Joseph P. Tracy Jul 16 1930-Jul 19 1930 8984 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC98595  Carex pachystachya Cara Witte 2008-8-6 1017 Humboldt Intersection of Forest Service Road 4E27 and National Forest 1. South of trail to Board Camp Butte. 1479 Comment
  SJSU8437  Carex pansa H. T. Harvey 1977-7-5 603 Humboldt margin of tidal salt-marsh, Elk River Spit, Humboldt Bay Comment
  UC562632  Carex praticola Joseph P. Tracy 1936-5-29 14826 Humboldt on ridge e Orick; Gans Prairie 548 Comment
  CAS-BOT-BC118821  Carex preslii R. Tallent 1987-8-11 893 Humboldt Six Rivers National Forest. Roadside S of Horse Mtn. 1449 Comment
  CAS-BOT-BC117347  Carex stipata Joseph Prince Tracy 1931-5-17 9422 Humboldt Lack Pond; in Trinity River Valley, opposite mouth of Willow 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
  SEINET7486521 Image available Carex subbracteata Peter F. Zika 2009-1 24494 Humboldt above Route 299, 2.3 road miles W of junction with Chezen Road, Outer North Coast Range (NCoRO), between Lord-Ellis and Berry summits Comment
  CAS-BOT-BC116672  Carex subfusca Alice Eastwood; John Thomas Howell 1937-6-23 4792 Humboldt Near Dinsmore's. Comment
  CAS-BOT-BC115567  Carex tumulicola Alice Eastwood; John Thomas Howell 1937-6-23 4758 Humboldt Dinsmore's Comment
  CAS-BOT-BC115569  Carex tumulicola Alice Eastwood; John Thomas Howell 1937-6-22 4745 Humboldt Near Blocksburg Comment
  NY11391  Carex unilateralis J. P. Tracy 1912-7-21 3783 Humboldt 30.5 Comment
  UC303072  Carex unilateralis Joseph P. Tracy 1908-7-22 2902 Humboldt near summit of ridge between Van Duzen and Mad Rivers, on Dinsmore's Ranch 1066 Comment
  UC249742  Carex vesicaria Joseph P. Tracy 1924-7-4 6705 Humboldt Snow Camp Northern Coast Ranges 1371 Comment
  RSA15477  Carex vesicaria Joseph P. Tracy 8988 Humboldt South Fork Mountain; in wet meadow at McKay Camp. 1677 Comment
  HSC96465  Carex viridula subsp. viridula Gordon Leppig 1997-8-3 639 Humboldt Big Lagoon County Park, Big Lagoon Bog, N edge 3 Comment
  UC162563  Castilleja Joseph P. Tracy 1911-5-30 3199 Humboldt Eureka; Northern Coast Region 0 Comment
  JEPS83  Castilleja affinis subsp. affinis Lincoln Constance 1934-3-29 715 b Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 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
  JEPS15614  Castilleja affinis subsp. litoralis Rimo Bacigalupi with G. Thomas Robbins and C. L. Custer 1954-8-11 4758 Humboldt 1.2 mi s Trinidad Comment
  JEPS8503  Castilleja affinis subsp. litoralis Joseph P. Tracy 1923-5-19 6208 Humboldt vicinity Trinidad; Northern Coast Region 60 Comment
  UC1374929  Castilleja affinis subsp. litoralis Noel H. Holmgren and Liew Fah Seong 1969-6-24 3611 Humboldt 5.6 mi w Ferndale Comment
  HSC90264  Castilleja ambigua subsp. humboldtiensis Jean Hanson 1980-5-24 69 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of Island, SW shore, 25 ft. from high tide line Comment
  JEPS26389  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1900-7-4 867 Humboldt Samoa North Coast Region, Humboldt Bay Region 0 Comment
  SJSU8462  Castilleja ambigua subsp. humboldtiensis H. T. Harvey 1977-7-6 609 Humboldt South Spit, Humboldt Bay Comment
  HSC101746  Castilleja attenuata J. P. Smith, J. O. Sawyer 2010-5-2 12810 Humboldt Along Hwy. 96, N of Orleans 140 Comment
  HSC20838  Castilleja attenuata R. T. Forester 1963-5-6 43 Humboldt 1 mi. S of Fairhaven on Samoa Rd. Comment
  HSC38194  Castilleja attenuata Peter Sorensen 1976-6-4 Humboldt N Spit of Humboldt Bay, S of Samoa near airport Comment
  HSC45387  Castilleja densiflora R. York 1978-5-20 169 Humboldt Along Bluff Creek Trail 610 Comment
  HSC32373  Castilleja exserta subsp. latifolia Linda M. Barker 1974-6-2 200 Humboldt Manila Dunes, Samoa Peninsula, W of Emerson Mill 0 Comment
  JEPS10639  Castilleja lacera Lincoln Constance 1934-6-25 929 Humboldt Englewood, on e side of road, across road from Collins' Englewood Campground South Fork Eel River, Bull Creek Region, Englewood Comment
  CAS-BOT-BC244883  Castilleja miniata Thomas W. Nelson; Jane P. Nelson 1979-7-11 5032 Humboldt Along trail from Grogan's Hole to North Trinity Mountain from Grogan's Hole to summit Comment
  HSC20582  Castilleja pruinosa P. W. Shields May 1955 Humboldt 4 mi. W of Hoopa Comment
  HSC44348  Castilleja pruinosa Brad Klipfel 1975-7-11 696 Humboldt Horse Mtn. Comment
  JEPS9795  Castilleja pruinosa Joseph P. Tracy 1933-7-11 12674 Humboldt Horse Mountain 1432 Comment
  UC1196746  Castilleja pruinosa Joseph P. Tracy 1942-6-23 17227 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  JEPS3911  Castilleja pruinosa Joseph P. Tracy with Dr. F. W. Pennell 1940-7-7 16669 Humboldt Grouse Mt. 1463 Comment
  UC902244  Castilleja pruinosa Joseph P. Tracy 1949-6-25 18342 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UC535100  Castilleja rubicundula subsp. lithospermoides Parks and Tracy 1930-5-25 796 Humboldt vicinity Bridgeville; Laribee Valley Comment
  HSC79430  Castilleja wightii Kenneth Clark 1980-6-14 670 Humboldt Western slope of Dead Man's Gulch 145 Comment
  HSC41322  Ceanothus arcuatus Brad Klipfel 1974-9-2 525 Humboldt Horse Mtn. Comment
  HSC98535  Ceanothus arcuatus C. Witte 2007-5-17 30 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. Near utility towers. 1483 Comment
  CAS-BOT-BC49319  Ceanothus cuneatus Joseph P. Tracy 1938-6-13 15905 Humboldt Horse Mountain 1432 Comment
  UCD111746  Ceanothus cuneatus Roman Gankin; W. R. Hildreth 1966-3-15 698 Humboldt State Highway 96, 8.4 miles north of Hoopa. Comment
  CDA35561  Ceanothus cuneatus subsp. cuneatus Gordon Leppig 1998-6-1 877 Humboldt Horse Mountain. Titlow Hill Road. Comment
  CAS-BOT-BC49656  Ceanothus foliosus var. foliosus Carl B. Wolf 1941-7-29 11093 Humboldt Along the Redwood Highway, 7/10 mi. no. of Jnct. with State Highway #1 from Ft. Bragg. 60 Comment
  HSC92755  Ceanothus foliosus var. foliosus J. R. McFarland 1997-4-10 Humboldt 3.7 mi N on King Range Rd. from Shelter Cove Rd. near peak 602 Comment
  CAS-BOT-BC50049  Ceanothus incanus Doris K. Kildale 1926-8-8 2470 Humboldt Dyerville Bridge near Dyerville - South Fork of Eel River 45 Comment
  POM282970  Ceanothus incanus Lyman Benson 1929-7-11 1785 Humboldt S of Garberville Comment
  UC164817  Ceanothus integerrimus J. P. Tracy 1903-5-24 1907 Humboldt Alder Point Eel River 152 Comment
  RSA95358  Ceanothus lemmonii Joseph P. Tracy 1929-4-28 8551 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  POM283003  Ceanothus parryi Lyman Benson 1928-7-12 394 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; Watershed: S Fork Eel River. 76 Comment
  SBBG4431  Ceanothus parryi M. Van Rensselaer 1941-4-29 1644 Humboldt Redwood Hwy near Garberville Comment
  HSC23267  Ceanothus pumilus D. E. Anderson, J. P. Smith 1971-7-6 - 1300 Humboldt Horse Mtn. 10 mi W of Willow Creek 1524 Comment
  HSC43228  Ceanothus pumilus R. Sutherland 1976-4-25 3 .25476 Humboldt 622 Comment
  HSC76582  Ceanothus pumilus Denis Kearns 1981-6-24 20 Humboldt Near Cedar Camp 1219 Comment
  CAS-BOT-BC52987  Ceanothus thyrsiflorus Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC18330  Ceanothus thyrsiflorus H. E. Parks Mar 1934 4828 Humboldt Spruce Cove, Trinidad Comment
  HSC101670  Ceanothus thyrsiflorus var. thyrsiflorus J. P. Smith, J. O. Sawyer 2011-4-23 13131 Humboldt Kings Peak Road, 3.2 miles from its junction with Shelter Cove Rd Comment
  CAS-BOT-BC52863  Ceanothus velutinus Volney Rattan 1878-1-1 s.n. Humboldt unspecified Comment
  HSC102038  Ceanothus velutinus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 941 Humboldt Rustic Camp, northwest of Patterson Meadows Comment
  JEPS42318  Ceanothus velutinus W. L. Jepson 1902-6-28 1949 Humboldt near Redwood Creek (High ridge, Acorn P.O. to Green Point Ranch) 1066 Comment
  POM89164  Ceanothus velutinus Joseph P. Tracy 1919-9-24 5295 Humboldt Trinity Summit 1829 Comment
  UC205484  Ceanothus velutinus Joseph P. Tracy 1919-9-24 5295 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  HSC100907  Ceanothus velutinus Carl C. Marshall Jun 1886 257 Humboldt Ridges. 915 Comment
  CAS-BOT-BC277178  Centaurea X pouzinii T. C. Fuller 1961-9-26 7030 Humboldt Horse Prairie, 2 mi. s. of Redcrest Comment
  CDA7084  Centaurea calcitrapa J. F. Hart 1963-9-17 Humboldt Whitlow, Eel River, 2 miles east of McCann. 0 Comment
  UC1222949  Centaurea solstitialis Joseph P. Tracy 1943-11-28 17452 Humboldt near Alton (Eel River bar at mouth of Van Duzen); Eel River, Van Duzen Comment
  RSA391523  Centaurium muehlenbergii H. M. Pollard 1948-7-17 s.n. Humboldt Orleans. Comment
  BLMAR299  Centaurium tenuiflorum Clara Sander 2002-7-16 299 Humboldt King range, East of Capetown, growing east of wildcat rd 152 Comment
  BLMAR319  Centaurium tenuiflorum Jennifer Anthony-Wheeler 2002-7-23 319 Humboldt Headwaters Forest Reserve, salmos pass parking lot 353 Comment
  JEPS38151  Centromadia pungens subsp. pungens W. L. Jepson 1932-8-8 16486 a Humboldt Canoe Creek Grasshopper Peak, Canoe Creek 1066 Comment
  UC1198613  Centunculus minimus J. P. Tracy 1905-5-21 2182 Humboldt immediate vicinity of Eureka 0 Comment
  HSC59895  Cephalanthera austiniae M. A. Baker 1979-6-28 943 Humboldt S of Mill Creek Comment
  UC1196469  Cephalanthera austiniae Stuart Harris 1936-6-12 3300 Humboldt Chalk Mt. 609 Comment
  HSC4095  Cerastium arvense Lincoln Constance 1934-6-3 805 Humboldt Rd. from High Rock on Redwood Hwy. 1 mi. N of Dyerville to Horse Prairie, S Fork Eel River, Bull Creek Comment
  UC161038  Cerastium fontanum subsp. vulgare Joseph P. Tracy 1907-6-20 2569 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  HSC98809  Cerastium fontanum subsp. vulgare Cara Witte 2008-8-5 986 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1569 Comment
  HSC4099  Cerastium glomeratum H. E. Parks, S. T. Parks Apr 1944 24279 Humboldt Spruce Cove, Trinidad 61 Comment
  HSC89604  Cerastium glomeratum M. Roantree 1985-4-25 10 Humboldt E side of Trinidad Head. Comment
  UC666857  Cercocarpus ledifolius var. ledifolius Joseph P. Tracy 1935-7-30 14362 Humboldt Salmon Summit, about 2 mi sw of the top of the mountain Salmon Summit 1767 Comment
  UC582766  Chaenactis douglasii var. douglasii Joseph P. Tracy 1935-7-30 14357 Humboldt Salmon Summit 1767 Comment
  HSC56952  Chamaecyparis lawsoniana Overton, Butler 1979-7-23 9456 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  UC502947  Chamaesyce serpyllifolia Joseph P. Tracy 1930-10-12 9208 Humboldt Eel River Northern Coast Ranges (Alton to Fortuna) 15 Comment
  SBBG60189  Chamerion angustifolium R. Hartwell 1938-8-7 Humboldt near Eureka Comment
  SBBG83773  Chamerion angustifolium J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka Comment
  HSC54691  Cheilanthes gracillima Overton, Butler 1979-7-26 9988 Humboldt Near Willow Creek 1341 Comment
  UC673035  Chenopodium macrospermum var. halophilum Harold E. Parks and Joseph P. Tracy 1934-10-13 11151 Humboldt Big Lagoon; on shore 3 Comment
  UCD98340  Chenopodium murale Joseph P. Tracy 1948-1-11 17949 Humboldt Eureka. 30 Comment
  BLMAR166  Chimaphila menziesii Donald Hazlett 1994-6-7 166 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC55025  Chimaphila menziesii Overton, Butler 1979-7-31 11440 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC1197597  Chimaphila menziesii Joseph P. Tracy 1926-6-6 7583 Humboldt near summit on rd. w. from Hoopa to Bair's (Hoopa Mt.); Northern Coast Ranges, Hoopa Mt. 1066 Comment
  POM87953  Chrysanthemum leucanthemum L. R. Abrams, R. C. Bacigalupi 1922-6-25 8262 Humboldt Between Trinidad and Big Lagoon Comment
  CAS-BOT-BC36480  Chrysolepis chrysophylla Ella Dales Cantelow 1938-10-22 2180 Humboldt Near Red Cap Creek, SW of Orleans Comment
  CAS-BOT-BC420628  Chrysosplenium E. A. McGregor 1921-8-17 118 Humboldt On old grade, S.E. of Orick Comment
  UC1198851  Chrysosplenium glechomifolium Joseph P. Tracy 1928-4-29 8422 Humboldt Prairie Creek; Northern Coast Ranges, Prairie Creek 152 Comment
  UC154218  Cicuta douglasii Joseph P. Tracy 1909-9-9 3090 Humboldt near Somoa (Region about Humboldt Bay, Northern Coast Region); Northern Coast Region, Humboldt Bay 0 Comment
  UC154254  Cicuta douglasii Joseph P. Tracy 1907-7-20 2597 Humboldt Region about Humboldt Bay, Northern Coast Region Humboldt Bay; Northern Coast Region, Humboldt Bay 0 Comment
  UCD127358  Cicuta douglasii Bellue Goodwin 1932-9-28 s.n. Humboldt Arcata. Comment
  HSC97984  Circaea alpina subsp. pacifica Cara Witte 2007-7-11 507 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  HSC99470  Circaea alpina subsp. pacifica K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 124 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC35383  Circaea alpina subsp. pacifica Harley P. Chandler June, 1901 1404 Humboldt North Coast Ranges, Klamath R. 365 Comment
  HSC5373  Cirsium arvense Paul Shields 1955-9-29 Humboldt 1/2 mi. S Fernbridge Comment
  CDA20074  Cirsium arvense E. Finley 2002-10-9 PDR 1035511 Humboldt Northwestern California; Hwy 36 at MM 31.08 E-bound. 0 Comment
  POM225838  Cirsium arvense J. T. Howell 1931-6-17 6724 Humboldt Redwood Highway, 1.5 miles north of Orick Comment
  UCD130554  Cirsium arvense R. E. Nelson 1956-7-3 192 b Humboldt 1.5 miles south of Brush Mountain in vicinity of Salyer , Six Rivers National Forest. 792 Comment
  SEINET9341561  Cirsium brevifolium Unknown 1948-9-3 1850 Humboldt Humboldt Comment
  CDA1176  Cirsium cymosum T. R. Haig 1960-6-16 s.n. Humboldt Kneeland, near quarry. 0 Comment
  CHSC114324  Cirsium douglasii B. Villegas 1998-8-5 Humboldt Nr. Berry Summit on Titlow Hill Rd., 4.8 mi. S of Hwy 299. Comment
  CDA1218  Cirsium douglasii var. douglasii T. C. Fuller 1962-8-6 9352 Humboldt Hwy 299, 3.4 miles east of Berry Summit. Comment
  CAS-BOT-BC279976  Cirsium douglasii var. douglasii Peter H. Raven; R. Snow 1958-7-20 13647 Humboldt Along Titlow Hill Road 3.8 miles south of United States Highway 299 Comment
  OBI81553  Cirsium occidentale var. candidissimum Jill M. Bushakra, John Bushakra 2000-6-16 42 Humboldt Across Hwy 101/Hwy 271 from the Elfin Glen Gift Shop, north of the Standish-Hickey Prk. Opening in coniferous forest. 213 Comment
  UC204828  Cirsium occidentale var. venustum Joseph P. Tracy 1918-7-3 4988 Humboldt Wilder Ridge Northern Coast Ranges, Wilder Ridge 762 Comment
  UC1223055  Cirsium occidentale var. venustum Joseph P. Tracy 1948-8-8 18092 Humboldt hillside back of (Iaqua and Bridgeville) Iaqua School House Comment
  POM256477  Clarkia amoena subsp. amoena Joseph P. Tracy 1938-6-17 15957 Humboldt Cape Mendocino, near the ocean shore, south of point of the Cape 3 Comment
  POM301289  Clarkia amoena subsp. amoena Joseph P. Tracy 1945-7-4 17511 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  RSA12450  Clarkia amoena subsp. huntiana Carl B. Wolf 1934-6-30 5843 Humboldt Shelter Cove, 1 mile from ocean 30 Comment
  UC1537616  Clarkia concinna subsp. concinna Gordon H. True Jr. 1936-5-11 455 Humboldt w Miranda; Salmon Creek 457 Comment
  HSC78965  Clarkia davyi L. P. Janeway 1984-5-16 792 Humboldt N Spit of Humboldt Bay, on the W side of Samoa Road ca. 1/4 mi. NW of the boat ramp 3 Comment
  UC183772  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1912-7-31 3907 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Burr Valley 1066 Comment
  UC562524  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1936-6-10 14935 Humboldt w of mouth South Fork Trinity River 609 Comment
  CAS-BOT-BC172510  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1932-6-26 10264 Humboldt Valley of South Yager Creek 762 Comment
  HSC16258  Clarkia purpurea subsp. quadrivulnera B. D. Rogers, William J. Ferlatte 1966-6-15 2096 Humboldt E of Bridgeville on Hwy. 36 671 Comment
  HSC98618  Clarkia rhomboidea Cara Witte 2008-7-2 795 Humboldt National Forest Road 1; 5 miles south of intersection with 5N04. Before cattle guard crossing. 1406 Comment
  HSC41647  Clarkia rhomboidea Thomas W. Nelson, Jane P. Nelson 1977-7-1 3572 Humboldt Along road 2S08 below Goat Hill 1524 Comment
  HSC67184  Claytonia exigua subsp. exigua Thomas W. Nelson, James Nelson 1980-6-10 5435 Humboldt Along E side of Red Mtn. 1372 Comment
  HSC48838  Claytonia lanceolata Brad Klipfel, J. O. Sawyer, J. P. Smith 1973-5-27 30 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  HSC17686  Claytonia perfoliata Francis Winter 1960-4-24 Humboldt 2 mi. N of Hwy. 299, on Redwood Creek Rd. 396 Comment
  HSC17692  Claytonia perfoliata R. van Weemen van Noord 1966-3-26 6 Humboldt N end of Samoa Drag Strip 6 Comment
  HSC17678  Claytonia perfoliata subsp. mexicana J. L. Baker 1965-4-13 47 Humboldt 4 mi. N of Arcata on N Bank Rd. Comment
  HSC34256  Claytonia rubra subsp. depressa A. Montalvo 1975-5-24 280 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  UC672999  Claytonia rubra subsp. rubra Joseph P. Tracy 1937-5-17 15286 Humboldt Willow Creek; Trinity River Valley 152 Comment
  JEPS25688  Claytonia saxosa P. C. Hutchison 1961-5-22 2016 Humboldt 4.3 mi s (on U.S. Hwy 299) Berry Summit (Monster Point parking area, Horse Mountain); Horse Mountain, Monster Point Comment
  CAS-BOT-BC443896  Claytonia sibirica Carl B. Wolf 1927-8-28 1171 Humboldt On grade 9 mi. from Willow Creek, Lord Ellis Road to Blue Lake Comment
  HSC55187  Claytonia sibirica G. L. Clifton, Griswold 1979-8-2 12246 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  OBI33239  Claytonia sibirica David J. Keil 1983-7-1 17261 Humboldt Along Bull Crk Flats Rd 1.4 mi W of US 101. Humboldt Redwoods State Park Comment
  UC162715  Claytonia sibirica Mrs. M. H. Manning Sep 1901 Humboldt near Hupa Comment
  UC162973  Claytonia sibirica Joseph P. Tracy 1911-6-4 3212 Humboldt 5 mi from coast Little River (along Little River); Northern Coast Region 121 Comment
  UC672988  Claytonia sibirica Joseph P. Tracy 1937-7-2 15388 Humboldt ne of Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC672993  Claytonia sibirica Joseph P. Tracy 1939-4-25 16220 Humboldt Bull Creek 60 Comment
  UC852101  Claytonia sibirica Elizabeth Parsons Hawver Jun 1915 Humboldt Carlotta Comment
  HSC98695  Claytonia sibirica C. Witte 2007-5-21 53 Humboldt Board Camp Mountain. Near intersection of Forest Service Road 4N38 with National Forest 1. 1394 Comment
  RSA554591  Claytonia sibirica Walter Wisura 1993-5-9 4909 Humboldt Northwest: Hwy 299, 5.7 mi. W of Willow Creek at E-fork camp ground. Comment
  UC418984  Claytonia sibirica H. E. Parks May 1930 742 Humboldt Upper Van Duzen River Comment
  HSC24332  Claytonia washingtoniana C. E. Fellows 1970-4-19 257 Humboldt 4.5 mi. S of Orick, 1/4 mi. E of Hwy. 101 on old Hwy. 101 Comment
  UC204646  Clematis ligusticifolia Joseph P. Tracy 1918-7-6 5053 Humboldt near Humboldt-Mendocino Co. line S. Fork Eel R.; Northern Coast Ranges, S. Fork Eel R. 152 Comment
  HSC14261  Clinopodium douglasii Paul Shields Jul 1955 Humboldt 3 mi. N of Weott 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
  UC1197659  Clintonia uniflora Joseph P. Tracy 1930-7-16 8966 Humboldt near McKay Camp (South Fork Mountain); South Fork Mountain 1676 Comment
  HSC92754  Coincya monensis Jim Belsher 1997-2-13 1 Humboldt Lot ESE of the Manila Community Services District sewage pump station 6 Comment
  JEPS7342  Collinsia heterophylla Joseph P. Tracy 1927-5-30 8089 Humboldt Vicinity of Garberville 121 Comment
  HSC100659  Collinsia parviflora Carl C. Marshall 21 Humboldt Kneeland Prairie. 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
  HSC81603  Collinsia rattanii Thomas W. Nelson, Jane P. Nelson 1980-5-25 5265 Humboldt Along road from Dinsmore to Anderson Crossing- McKeown Ranch Rd.- 0.5 mi. NW of McKeown house 823 Comment
  UC147870  Collinsia sparsiflora var. sparsiflora J. P. Tracy 1904-4-17 2012 Humboldt immediate vicinity of Eureka 0 Comment
  HSC100912  Collinsia torreyi Carl C. Marshall Jun 1886 301 Humboldt Trinity Summit. Comment
  JEPS7056  Collinsia torreyi var. wrightii Joseph P. Tracy 1933-7-16 12777 Humboldt near McKay Camp; South Fork Mtn 1676 Comment
  HSC56331  Collomia grandiflora Overton, Butler 1979-8-2 12698 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC97946  Collomia grandiflora Cara Witte 2007-6-27 368 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Near intersection with 4N32B 1516 Comment
  RSA12459  Collomia heterophylla C. B. Wolf 1934-6-30 5834 Humboldt 7 miles from Shelter Cove on road to Briceland. 152 Comment
  UC1470711  Collomia heterophylla Barbara Ertter with Thomas J. Delendick 1987-5-16 6944 Humboldt on s side Hwy 299 above Willow Creek (ca 3 mi e of Berry Summit, ca 20 air mi e of Arcata, near large volcanic rock) 800 Comment
  UC582686  Collomia heterophylla Joseph P. Tracy 1937-5-17 15296 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1197863  Collomia tracyi Joseph P. Tracy 1932-7-13 10517 Humboldt open places at Corral Prairie Trinity Summit 1584 Comment
  HSC8636  Conium maculatum J. R. Lippincott 1967-7-16 12 Humboldt 1 mi S of Blue Lake on West End Rd. Comment
  HSC49219  Coptis laciniata J. O. Sawyer 1977-4-23 2846 Humboldt Dagsaw Spring on road to Onion Mtn. Comment
  UC1196211  Coptis laciniata Joseph P. Tracy 1915-8-2 4663 Humboldt Northern Coast Ranges, Mouht of Lawrence Creek Lawrence Creek; Northern Coast Ranges, Lawrence Creek 152 Comment
Read comments
Jan 22 2014
  HSC39677  Corallorhiza maculata Thomas W. Nelson, Jane P. Nelson 1976-6-16 2745 Humboldt Along FS 2S08, between Alder Springs & Pine Mtn. 1494 Comment
  HSC44517  Corallorhiza maculata Brad Klipfel 1973-7-1 125 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC98642  Corallorhiza maculata Cara Witte 2008-7-11 883 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  UC176373  Corallorhiza maculata Joseph P. Tracy 1913-6-17 4191 Humboldt Buck Mountain Northern Coast Ranges (near summit) 1524 Comment
  UC1196450  Corallorhiza maculata Joseph P. Tracy 1930-7-18 9063 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC98347  Corallorhiza striata T. Jimerson, J. Pageau 1979-6-12 527 Humboldt Near Hopkins Butte, close to the town of Orleans. 1036 Comment
  OBI9572  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 Comment
  CAS-BOT-BC101139  Corethrogyne filaginifolia J. Burtt Davy 1899-6-30 6185 Humboldt near Ferndale, n. Coast Ranges Comment
  HSC100453  Cornus nuttallii Carl C. Marshall Jun 1886 283 Humboldt Bald Hills. Comment
  CAS-BOT-BC212176  Cornus sericea Thomas Nelson 1977-6-3 3385 Humboldt Mad River at south end of Mad River Bridge, North Coast Range 53 Comment
  LA97947  Cornus sessilis Jane Turner; Francis M. Ball 1962-7-10 SK&F- 1144 Humboldt East Fork Willow Creek Forest Camp, Six Rivers National Forest, highway 299 ca. 5 mi. W of Willow Creek 457 Comment
  JEPS53365  Coronopus didymus Lincoln Constance 1934-6-18 902 Humboldt border of N. Dyerville Flat, near South Fork Rail Road Station and Post Office, South Fork Eel River South Fork Eel River; Bull Creek Region, South Fork Eel River 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
  UC1222291  Corylus californica Joseph P. Tracy 1951-7-24 19624 Humboldt Blue Slide. on Van Duzen River 91 Comment
  UC902053  Corylus californica Joseph P. Tracy 1949-8-11 18486 Humboldt 1 1/2 mi SE of Snow Camp 1341 Comment
  BLMAR230  Corylus cornuta subsp. californica Jennifer Anthony-Wheeler 1996-9-26 230 Humboldt King range, growing alng Bear creek between Wailaka & Nadelos campgrounds 548 Comment
  LA204121  Corylus cornuta subsp. californica Carl Epling; William Robison 1935-7-25 sn Humboldt Devoy Grove of Redwoods Comment
  SEINET12034008  Corylus cornuta var. californica J. P. Tracy 1951-1 19624 Humboldt along Van Duzen at Blue Slide 91 Comment
  SEINET200866  Cotula australis J. P. Tracy 1900-5-26 804 Humboldt Immediate Vicinity of Eureka, Comment
  SEINET11859878  Cotula australis J. P. Tracy 1943-4-10 17414 Humboldt Eureka Comment
  CHSC32813  Cotula coronopifolia Lora L. Anderson 1981-4-26 20 Humboldt Ca. 500 yds e of ocean (Moonstone Beach) 0.5 mi w of hwy 101, 11.5 mi nw of Arcata. 0 Comment
  HSC39945  Cotula coronopifolia Linda M. Barker 1976-6-1 1554 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. 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
  CAS-BOT-BC291488  Crepis capillaris David D. Keck; J. Clausen 1935-6-16 3397 Humboldt Orick Comment
  CAS-BOT-BC291493  Crepis capillaris Alice Eastwood 1921-7-21 10657 Humboldt Carlotta Comment
  UC1051582  Crepis capillaris Joseph P. Tracy 1948-9-20 18221 Humboldt Mill Creek Hoopa Valley 106 Comment
  UC1199457  Crepis capillaris Joseph P. Tracy 1948-8-22 18104 Humboldt flat by old Strong's District School House (5 mi e of town); Carlotta 60 Comment
  CAS-BOT-BC290586  Crepis capillaris L. R. Abrams 1916-7-18 6114 Humboldt Arcata to Trinidad, 18 mi. along coast Comment
  UC302296  Crepis pleurocarpa Joseph P. Tracy 1926-6-20 7621 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  UC427860  Crocidium multicaule H. E. Parks, J. P. Tracy 1930-5-25 867 Humboldt Laribee Valley Comment
  HSC100428  Crocidium multicaule Carl C. Marshall Apr 1887 366 Humboldt Hoopa Valley, near Supply Creek. Comment
  HSC91877  Crocosmia X crocosmiiflora E. Mackey 1986-10-7 Humboldt Patrick's Point State Park, picnic area near parking lot for Ceremonial Rock Comment
  HSC98635  Croton setiger Cara Witte 2008-8-16 1031 Humboldt Along National Forest 1. On Kinsey Ridge. 1336 Comment
  HSC57947  Cryptantha affinis G. L. Clifton, Griswold 1979-7-31 11623 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC526804  Cryptantha affinis Joseph P. Tracy 1932-7-11 10398 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC525602  Cryptantha milobakeri Joseph P. Tracy 1927-5-15 8050 Humboldt w of Hoopa Valley; North Coast Ranges, Supply Creek 304 Comment
  UC1239654  Cryptantha torreyana Joseph P. Tracy 1921-5-30 5497 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC562671  Cuscuta californica Joseph P. Tracy Jul 16 1930-Jul 19 1930 8912 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC902076  Cuscuta occidentalis Joseph P. Tracy 1949-8-4 18407 Humboldt Mud Springs Trinity Summit 1341 Comment
  CHSC31295  Cuscuta salina var. major Mark Stopher 1980-7-11 117 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  UC1197870  Cuscuta subinclusa Joseph P. Tracy 1927-7-17 8287 Humboldt near Bug Creek (Ahlgren's, on Mad River); Mad River 457 Comment
  HSC37074  Cymopterus terebinthinus var. californicus R. Sutherland 1976-4-24 Humboldt Garberville Triangle 518 Comment
  UC1239628  Cynoglossum grande Joseph P. Tracy 1927-4-10 7902 Humboldt near the s. fork Trinity River Valley; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC176042  Cynoglossum grande Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3615 Humboldt near Hydesville; Northern Coast Region 30 Comment
  HSC74370  Cynoglossum occidentale M. A. Baker 1980-5-18 1289 Humboldt Near Black Mtn. 1006 Comment
  UCD60130  Cynosurus cristatus Peter H. Raven; R. Snow 1958-7-21 13657 Humboldt 2 miles north of Cape Mendocino. Comment
  CAS-BOT-BC190378  Cynosurus echinatus J. W. Tilden 1946-6-21 s.n. Humboldt Bluff Creek. Comment
  HSC37996  Cyperus eragrostis Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  HSC38833  Cyperus eragrostis R. Sutherland 1976-8-6 15 .6876 Humboldt 223 Comment
  CAS-BOT-BC113832  Cyperus niger var. capitatus Joseph Prince Tracy 1938-8-14 16113 Humboldt South Fork of Trinity River, mountain slopes west of its mouth. 304 Comment
  UC196569  Cyperus squarrosus Joseph P. Tracy 1916-9-5 4773 Humboldt 4 mi. above mouth S. Fork Eel R.; Northern Coast Ranges, S. Fork Eel R. 60 Comment
  UC668036  Cyperus squarrosus Joseph P. Tracy 1931-9-7 9662 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UC503060  Cystopteris fragilis Joseph P. Tracy 1932-7-17 10685 Humboldt head of Devil's Hole Trinity Summit; Klamath Mts. 1828 Comment
  UC42487  Cystopteris fragilis C. C. Marshall 1888-1 Humboldt Comment
  RSA183569  Cytisus monspessulanus R. I. Bonn 1965-3-19 8 Humboldt 1/2 mi. south of G.P. mill on Samoa Rd. Comment
  RSA783324  Cytisus scoparius R. R. Halse 2010-3-25 7856 Humboldt Along US Hwy 101 ca. 9.7 miles S of Orick. 5 Comment
  CAS-BOT-BC189745  Danthonia californica Joseph P. Tracy 1935-6-23 13965 Humboldt French Camp Ridge. 1066 Comment
  UCD60503  Danthonia californica var. americana R. Tofsrud 1947-6-27 s.n. Humboldt About halfway between Yager and Kneeland on county road. Comment
  HSC98849  Danthonia unispicata Cara Witte 2008-7-11 870 Humboldt Horse Mountain Botanical Area. 1/2 mi. south from intersection of National Forest 1, Forest Service Roads 6N38 and 6N36. 1413 Comment
  JEPS49584  Darmera peltata W. L. Jepson 1902-6-30 1958 Humboldt Redwood Creek; Berry's Ranch Comment
  CDA30706  Daucus carota M. K. Beyers, I. Shepardson 2009-9-13 251 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
  HSC33767  Daucus pusillus Ron Rahlston 1975-5-24 77 Humboldt Samoa Dunes off Samoa Blvd., across from boat landing Comment
  UC1197348  Daucus pusillus J. P. Tracy 1905-6-11 2192 Humboldt Bucksport 0 Comment
  HSC94008  Delairea odorata Gordon Leppig 2000-2-15 1284 Humboldt School Rd. 1/2 mi. W of Central Ave. 30 Comment
  SEINET4465020 Image available Delphinium decorum H. E. Parks, J. P. Tracy 1930-1 789 Humboldt Laribee Valley 914 Comment
  RSA304852  Delphinium decorum subsp. decorum James R. Shevock 1971-5-29 1137 Humboldt Trinity Hwy 299. 244 Comment
  CAS-BOT-BC33215  Delphinium decorum subsp. tracyi Harold Ernest Parks; Joseph Prince Tracy 1930-3-25 789 Humboldt Laribee Valley 914 Comment
  UC502927  Delphinium decorum subsp. tracyi Joseph P. Tracy 1932-7-12 10486 Humboldt moist places at head Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  RSA296867  Delphinium decorum subsp. tracyi Joseph P. Tracy 1918-5-28 4941 Humboldt High Prairie on Bald Mtn. Comment
  UC183075  Delphinium decorum subsp. tracyi Joseph P. Tracy 1913-6-17 4148 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (nw slope of mt.) 1066 Comment
  HSC48682  Delphinium glaucum Brad Klipfel 1973-7-31 242 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC56235  Delphinium glaucum Walter Overton 1979-8-1 12316 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  UC668272  Delphinium glaucum Joseph P. Tracy 1935-7-25 14241 Humboldt lower end Brett Hole (along streams); Trinity Summit 1584 Comment
  CAS-BOT-BC10314  Delphinium hesperium E. K. Balls; L. W. Lenz 1956-6-12 21665 Humboldt 9.1 mi. NE from Blue Lake along U.S. Hwy. 299, Arcata to Willow Creek 487 Comment
  CAS-BOT-BC9951  Delphinium nudicaule Doris K. Kildale 1927-3-20 2928 Humboldt Philipsville, south fork of Eel River Comment
  HSC64263  Delphinium nuttallianum J. O. Sawyer, M. A. Ericksen 1979-6-23 3398 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC46069  Delphinium trolliifolium G. N. Bos 1965-5-15 276 Humboldt Berry Summit near Hwy. 299 793 Comment
  UC1222574  Delphinium trolliifolium Joseph P. Tracy 1950-6-15 18816 Humboldt ne side of ridge Mail Ridge, Huestis Rock (7 mi n of Harris) 822 Comment
  RSA75637  Delphinium trolliifolium Albert M. Vollmer, L. Beane 1951-6-6 106 Humboldt On road between Orick and Weitchpec. Comment
  UC1222573  Delphinium trolliifolium Joseph P. Tracy 1950-6-25 18883 Humboldt nw slope Buck Mountain, Burr Valley 1066 Comment
  UC668070  Delphinium trolliifolium Joseph P. Tracy 1935-6-23 14000 Humboldt near Coyote Peak; French Camp Ridge 1066 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
  CDA18064  Deschampsia cespitosa subsp. cespitosa Huggel 1999-7-3 PDR 1223445 Humboldt Railroad right-of-way, Eureka. 0 Comment
  RSA22686  Deschampsia danthonioides Joseph P. Tracy 1935-6-23 13969 Humboldt French Camp Ridge Comment
  CAS-BOT-BC201769  Deschampsia elongata H. E. Parks 1931-5-1 3646 a Humboldt Big Lagoon Comment
  HSC38624  Deschampsia elongata D. E. Anderson, J. P. Smith 1971-6-21 - 1105 Humboldt 2 mi. E of Garberville, on rd. to Alderpoint. Comment
  POM365046  Deschampsia elongata Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek- near Orleans. Comment
  UC184920  Deschampsia elongata Joseph P. Tracy 1912-6-9 3684 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC76979  Deschampsia elongata Joseph Burtt Davy and Walter C. Blasdale 1899-5 5509 Humboldt near Camp Grant Comment
Read comments
May 17 2012
  RSA0056407  Dicentra formosa James R. Shevock 1971-5-29 1139 Humboldt Trinity Hwy, 229. 243 Comment
  JEPS9734  Dicentra pauciflora Joseph P. Tracy 1933-7-16 12776 Humboldt near McKay Camp (South Fork Mountain); North Coast Ranges, South Fork Mountain 1676 Comment
  UC35008  Dicentra uniflora W. C. Blasdale 1896-1 Humboldt Top of South Fork Mountain Comment
  RSA254753  Dichanthelium acuminatum var. fasciculatum Thomas W. Nelson 1973-9-3 1120 Humboldt McKeown Ranch north of Dinsmore Comment
  UC15031  Dichelostemma capitatum P. E. Goddard 1901-7-8 33 Humboldt Hupa Comment
  HSC3001  Dichelostemma capitatum subsp. capitatum Francis Winter 1960-4-24 Humboldt 1 mi. N of Redwood Creek Ranch 396 Comment
  HSC32382  Dichelostemma capitatum subsp. capitatum Linda M. Barker 1974-5-11 182 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC97467  Dichelostemma capitatum subsp. pauciflorum Cara Witte 2007-5-29 126 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  HSC48851  Dichelostemma ida-maia Brad Klipfel 1973-7-15 210 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  SJSU912  Dichelostemma ida-maia J. W. Tilden 1946-6-20 1008 Humboldt Bluff Creek c. 1.5 mi above junction with Klamath River Comment
  UC1198185  Dichelostemma ida-maia Joseph P. Tracy 1934-7-22 13489 Humboldt road from Iaqua to Bridgeville (at crossing of North Yager Creek); North Yager Creek 396 Comment
  UC535761  Dichelostemma ida-maia Eleanor Armstrong 1934-5-17 Humboldt n of Redway 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
  CAS-BOT-BC500981  Dichelostemma multiflorum Doris K. Kildale 1927-7-3 3655 Humboldt Willow Creek Flat 152 Comment
  CDA6260  Digitalis purpurea T. C. Fuller 1958-6-17 1725 Humboldt Petrolia, Lower Mattole. 0 Comment
  RSA54137  Digitaria sanguinalis Henry M. Pollard 1944-9-7 s.n. Humboldt Near Orleans. Comment
  UCD64093  Digitaria sanguinalis Joseph P. Tracy 1942-9-13 17316 Humboldt Eureka. 30 Comment
  CAS-BOT-BC150340  Diplacus aurantiacus Doris K. Kildale 1925-6-21 726 Humboldt Briceland Bridge 1/2 mile west of Garberville 114 Comment
  CHSC94932  Diplacus aurantiacus K. Lang; J. Lang 2005-3-16 49 Humboldt Trinidad, N. California coast. 51 Comment
  CAS-BOT-BC153241  Diplacus kelloggii Doris K. Kildale 1928-5-19 5179 Humboldt Chalk Mountain Comment
  CHSC579  Dipsacus fullonum M. Anthony 1960-5-14 Humboldt Arcata. Comment
  RSA520557  Disporum smithii Michael A. Hanson 1990-5-21 71 Humboldt Near Little Creek Trail in Redwood National Park; east side of Highway 101 approximately 7 miles (11 km) south of Klamath Comment
  HSC26357  Distichlis spicata T. O. Osborne 1970-6-18 55 Humboldt Green Rock, 1-5/8 mi. N, 3/4 mi. W of Trinidad Lighthouse. Comment
  HSC9631  Distichlis spicata J. D. Wilder 1965-5-19 46 Humboldt Along Humboldt Bay, N end. Comment
  UC562604  Draperia systyla Joseph P. Tracy 1935-7-31 14389 Humboldt Devil's Backbone; ridge connecting Trinity Summit and Salmon Summit 1524 Comment
  HSC7577  Drosera rotundifolia D. E. Anderson 1961-9-9 1800 Humboldt Big Lagoon County Park Comment
  UC203639  Drosera rotundifolia Joseph P. Tracy 1918-7-21 5084 Humboldt Humboldt Hill Northern Coast Ranges, Region about Humboldt Bay (small bog on n slope) 91 Comment
  CAS-BOT-BC159613  Drymocallis glandulosa var. glandulosa Doris K. Kildale 1929-5-26 9136 Humboldt Klamath River at Orleans 152 Comment
  HSC103070  Drymocallis glandulosa var. reflexa Sydney Carothers 2014-6-11 1 Humboldt Six Rivers National Forest, Lassics Botanical Area; south face Mt. Lassic, along trail to summit 1772 Comment
  HSC58166  Drymocallis lactea var. lactea G. L. Clifton, Griswold 1979-8-2 12232 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC975  Dryopteris arguta R. I. Bonn 1965-5-9 49 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  JEPS35200  Dryopteris arguta W. L. Jepson 1932-8-9 16542 Humboldt Deerfoot Glade Bull Creek 121 Comment
  HSC7296  Dulichium arundinaceum J. P. Tracy 1938-9-25 16173 Humboldt Bald Mtn., 'Lake Prairie 1067 Comment
  UC1056037  Echinochloa crus-galli H. E. Parks 24213 Humboldt Spruce Cove Comment
  UC183454  Echinochloa crus-galli Joseph P. Tracy 1900-11-1 973 Humboldt Eureka; Northern Coast Region 0 Comment
  UC1103668  Eleocharis bella Joseph P. Tracy 1927-8-7 8313 Humboldt Lack Pond, opposite mouth of Willow Creek Trinity River Valley 152 Comment
  HSC39049  Eleocharis macrostachya Linda M. Barker 1976-6-22 1621 Humboldt 3 mi. W of Arcata Comment
  HSC90658  Eleocharis macrostachya Gail Newton 1982-6-10 3640 Humboldt Elk River Wildlife Area, Eureka Comment
  CAS-BOT-BC112837  Eleocharis macrostachya Doris K. Kildale 1928-7-29 5934 Humboldt Kanman Pond, Bear River Ridge. Comment
  CAS-BOT-BC112839  Eleocharis macrostachya David Daniels Keck 1938-8-5 4768 Humboldt Big Lagoon, on shore in drying clay mud. Comment
  JEPS19323  Eleocharis pachycarpa Joseph P. Tracy 1926-7-25 7757 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  CAS-BOT-BC113168  Eleocharis palustris Joseph Prince Tracy 1934-7-14 13400 Humboldt Blue Lake, along Mad River 15 Comment
  JEPS19324  Eleocharis parishii Joseph P. Tracy 1926-8-12 7767 Humboldt Trinity River Valley, near the South Fork Northern Coast Ranges 182 Comment
  HSC75262  Elymus glaucus J. O. Sawyer, M. A. Erickson 1980-8-18 4056 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  UC187094  Elymus glaucus J. P. Tracy 1902-7-4 1760 Humboldt Immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC203472  Elymus glaucus subsp. glaucus Joseph P. Tracy 1935-6-22 13958 Humboldt Holmes Flat 60 Comment
  JEPS71189  Elymus glaucus subsp. glaucus W. L. Jepson 1936-8-8 17859 Humboldt Richardson Grove South Fork Eel River Comment
  SEINET249776  Elymus glaucus subsp. glaucus J. P. Tracy 1936-6-9 14889 Humboldt Bear River Lodge Comment
  UCD62371  Elymus glaucus subsp. glaucus A. H. Shunk 1923-7-12 Humboldt Briceland. Comment
  CAS-BOT-BC204332  Elymus trachycaulus subsp. trachycaulus David D. Keck 1944-7-11 5491 Humboldt 3 mi. N. E. of Capetown 152 Comment
  RSA10129  Elymus trachycaulus subsp. trachycaulus Joseph P. Tracy 1926-7-5 7736 Humboldt Valley of South Yager Creek. 762 Comment
  HSC33094  Empetrum nigrum J. P. Smith 1975-3-31 8048 Humboldt Megwill Point on Elk Head, just N of College Cove Comment
  UCD117423  Empetrum nigrum subsp. hermaphroditum James Payne Smith Jr. 1975-3-31 8048 Humboldt Megwill Point on Elk Head, just north of College Cove. Comment
  CHSC110737  Enemion stipitatum Dean Wm. Taylor 2011-5-4 21117 Humboldt Vicinity of Dinsmore; Forest Road 1N30 (Bick Mountain Road) about 0.5 miles SE from junction with Highway 36. 737 Comment
  HSC102933  Epilobium M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 956 Humboldt Patterson Meadows 1555 Comment
  RSA40412  Epilobium brachycarpum P. A. Munz 1948-8-13 12348 Humboldt Highway 229, 21 miles E of Blue Lake. 762 Comment
  UC183663  Epilobium brachycarpum Joseph P. Tracy 1913-8-1 3959 Humboldt opposite Buck Mountain; Northern Coast Ranges, Dinsmore's Ranch, valley of Van Duzen 762 Comment
  RSA46782  Epilobium canum subsp. latifolium Doris Kildale Gillespie 1937-8-12 15255 Humboldt South Fork Mountain. Comment
  UC562504  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1933-8-6 12941 Humboldt along stream French Camp Ridge 1066 Comment
  RSA755161  Epilobium ciliatum subsp. glandulosum Robert F. Thorne, P. Everett 1965-8-9 35347 Humboldt Along Hwy 101 about 3 miles N of Eureka; 2 Comment
  UC902177  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1947-7-5 17810 Humboldt near Box Camp (along stream); Trinity Summit 1463 Comment
  HSC98622  Epilobium ciliatum subsp. glandulosum Cara Witte 2007-7-25 584 Humboldt Forest Service Road 6N08. Friday Ridge Road. 1/4 mile east of intersection with 5N10. 1237 Comment
  POM89782  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1919-9-18 5225 Humboldt Northern Coast Ranges: Trinity Summit 1890 Comment
  UC902168  Epilobium densiflorum Joseph P. Tracy 1942-7-18 17279 Humboldt along ditch in field Garberville 152 Comment
  JEPS31500  Epilobium foliosum Joseph P. Tracy 1939-5-30 16302 Humboldt Dinsmore's Ranch Northern Coast Ranges, Van Duzen River (opposite Buck Mountain) 670 Comment
  HSC39234  Epilobium minutum D. E. Anderson, J. P. Smith 1971-7-6 - 1273 Humboldt Horse Mtn. Comment
  HSC97478  Epilobium minutum C. Witte 2007-5-23 87 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  HSC98840  Epilobium minutum Cara Witte 2008-7-11 877 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  UCR45444  Epilobium minutum N. Meiselman, M. Bransom, D. Brown, Ron Hildebrandt 1986-4-19 28 Humboldt North Coast Range, Horse Mountain, 0.5 mi. down Titlow Road from Ski Area 1372 Comment
  CAS-BOT-BC171828  Epilobium oreganum Joseph P. Tracy 1933-7-25 12835 Humboldt Grouse Mountain, North Coast Ranges 1524 Comment
  JEPS44027  Epilobium septentrionale W. L. Jepson 1924-9-19 10652 Humboldt river bed at Richardson Grove (S. Fork Eel R.); , Richardson Grove Comment
  RSA75597  Epipactis gigantea Albert M. Vollmer, L. Beane 1951-6-11 139 Humboldt Along the Van Duzen River, at Bridgeville Comment
  UC666979  Epipactis gigantea Joseph P. Tracy 1927-7-4 8243 Humboldt Blue Slide Van Duzen River 91 Comment
  HSC100382  Equisetum arvense Carl C. Marshall May 1886 199 Humboldt Fields. Comment
  CAS-BOT-BC57161  Equisetum hyemale subsp. affine Joseph P. Tracy 1937-3-21 15234 Humboldt Van Duzen River, near Grizzly Creek 91 Comment
  SEINET5525683 Image available Equisetum telmateia Unknown 1983-6-16 Humboldt Patricks Pt State Park Comment
  HSC54551  Equisetum telmateia subsp. braunii Overton, Butler 1979-7-23 9541 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  SD90175  Equisetum telmateia subsp. braunii Benjamin C. Stone 1952-6-24 139 Humboldt 15 miles south of Klamath on Hwy. 101 36 Comment
  SEINET10834153  Equisetum telmateia var. braunii Mary Susan Taylor 1977-8-5 Taylor 1430 Humboldt Abundant around bridge over Eel River, at the turnoff from Hwy 1 to Ferndale, in Fernbridge. 2 Comment
  CAS-BOT-BC284096  Eragrostis pectinacea var. pectinacea Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  HSC39978  Erechtites glomeratus Linda M. Barker 1976-7-5 1634 Humboldt 3 mi. W of Arcata. Comment
  HSC89505  Erechtites glomeratus M. Roantree 1985-6-10 83 Humboldt East side of Trinidad Head Comment
  HSC27395  Eremocarpus setiger Thomas W. Nelson 1970-9-3 220 Humboldt Mad River. Comment
  JEPS52495  Eremocarpus setiger Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  RSA145330  Erica lusitanica T. C. Fuller 1961-3-22 5938 Humboldt Humboldt County: N slope Humboldt Hill Comment
  RSA783323  Erica lusitanica R. R. Halse 2010-3-25 7855 Humboldt Along US Hwy 101 ca. 9.7 miles S of Orick. 5 Comment
  HSC56372  Erigeron aliceae Griswold, Butler 1979-7-11 6395 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  SEINET200722  Erigeron foliosus Joseph P. Tracy 1913-6-10 4082 Humboldt Along Van Dugen River near Grizzly Gulch. Comment
  CAS-BOT-BC296106  Erigeron foliosus var. confinis Lincoln Constance; Reed C. Rollins 1942-5-12 2896 Humboldt Junction of Klamath and Salmon Rivers 1 mile south of Somes BAr 152 Comment
  CDA4916  Erigeron glaucus Gordon Leppig 1998-6-22 840 Humboldt Dry Lagoon State Park, coastal sand dune between ocean and Dry Lagoon. Comment
  POM56121  Erigeron inornatus var. biolettii Joseph P. Tracy 1918-7-6 5052 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  HSC99348  Erigeron inornatus var. inornatus Thomas W. Nelson, B. Reinhardt 1975-7-30 2110 Humboldt Whiting Spring Comment
  HSC97452  Erigeron klamathensis Cara Witte 2007-6-7 219 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1371 Comment
  HSC66281  Erigeron maniopotamicus M. A. Baker 1980-6-28 2499 Humboldt Near Mad River Buttes 1445 Comment
  UC31516  Erigeron philadelphicus var. philadelphicus Hy Melde 1896-2-21 Humboldt Eureka Comment
  RSA168812  Erigeron reductus var. reductus Joseph P. Tracy 1950-7-15 19046 Humboldt Trinity River, E side, 1 mile N of mouth of Willow Creek. Comment
  CAS-BOT-BC224258  Eriodictyon californicum Henry M. Pollard 1945-9-1 s.n. Humboldt Road to Redcap Creek Comment
  CAS-BOT-BC224260  Eriodictyon californicum Marcus E. Jones 1924-4-28 s.n. Humboldt Dyerville Comment
  UC1083059  Eriodictyon californicum P. C. Everett and E. K. Balls 1959-10-24 23953 Humboldt Somesbar to Orleans (2.8 mi sw from Siskiyou-Humboldt Co. Line); Somesbar to Orleans 198 Comment
  HSC55092  Eriogonum compositum G. L. Clifton, Griswold 1979-7-31 11779 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC26876  Eriogonum latifolium Clifton Raymond Chesbrough 1973-6-19 80 Humboldt 1/4 mi. W of the Samoa entrance to Samoa Bridge 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
  JEPS95110  Eriogonum latifolium Vernon Oswald and Lowell Ahart 1997-9-4 8853 Humboldt 1.1 mi s of Highway 255 (North Spit of Humboldt Bay, w side of New Navy Base Road); North Spit of Humboldt Bay, New Navy Base Road 6 Comment
  POM188142  Eriogonum latifolium Marcus E. Jones 1931-7-12 28806 Humboldt Alton. Comment
  RSA296732  Eriogonum latifolium J. P. Smith, Thomas W. Nelson 1977-6-30 9209 Humboldt Samoa Peninsula just east of the drag strip. Comment
  HSC54580  Eriogonum nudum Overton, Butler 1979-7-24 9622 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  UC54762  Eriogonum nudum var. nudum P. E. Goddard 1901-7-12 84 Humboldt Hupa Comment
  RSA18610  Eriogonum nudum var. nudum Carl B. Wolf 1937-9-8 9300 Humboldt North Coast Range, Bull Creek- Petrolia Road, 11 miles west of redwood highway. 305 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
  UC14096  Eriogonum roseum Chesnut and Drew 1888-7-25 Humboldt Hy-Am-Pum Comment
  UC55393  Eriogonum umbellatum var. dumosum Harley P. Chandler June 1901 1495 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  HSC24386  Eriogonum umbellatum var. goodmanii J. O. Sawyer 1970-6-24 2211 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  CAS-BOT-BC444000  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8346 Humboldt Along U.S. Forest Service Road 1 northwest of Grouse Mountain at milepost 14.3, about 10.3 air miles southwest of Sayler 1371 Comment
  UC1980592 Image available Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8345 Humboldt Along U. S. Forest Service Road 1 at south end of Whiting Ridge, about 0.5 air miles west-northwest of High Salt Ground and 9.3 air miles west of Hyampom. Comment
Read comments
Jun 19 2014
  HSC43085  Eriogonum umbellatum var. nelsoniorum Brad Klipfel 1973-7-1 146 Humboldt N Trinity Mtn. 1860 Comment
  HSC63845  Eriogonum umbellatum var. umbellatum M. A. Baker 1979-6-26 913 Humboldt S facing ridge Comment
  CAS-BOT-BC262322  Eriogonum vimineum F. D. Douthitt 1916-10-1 40 Humboldt Burned area - Snow Mt. Allotment Comment
  HSC53823  Eriophyllum lanatum var. achilleoides Griswold, Butler 1979-7-10 6269 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC34551  Eriophyllum lanatum var. achilleoides Chesnut and Drew 1888-7-12 Humboldt Jarnigan's Comment
  RSA92676  Eriophyllum lanatum var. arachnoideum F. W. Peirson 1926-7-12 7029 Humboldt West slope of Coast Range back of Orick. Comment
  CAS-BOT-BC301388  Eriophyllum lanatum var. grandiflorum Harley P. Chandler 1901-6-1 1301 Humboldt North Coast Ranges. Hupa Indian Reservation 152 Comment
  UC165856  Eriophyllum lanatum var. lanceolatum Joseph P. Tracy 1911-7-8 3441 Humboldt about 0.5 mi above mouth Willow Creek (on s bank of river); Northern Coast Ranges, Valley of the Trinity River 152 Comment
  CAS-BOT-BC301925  Eriophyllum staechadifolium A. A. Heller 1924-7-23 13878 Humboldt Along the highway between Little River and Trinidad Comment
  CDA17338  Eriophyllum staechadifolium B. Freeman 2004-8-2 PDR 1403792 Humboldt North Coast; Petrolia Road, Lost Coast, Petrolia. 0 Comment
  UC275337  Erodium botrys Joseph P. Tracy 1923-5-13 6206 Humboldt near Bridgeville; Northern Coast Ranges 213 Comment
  HSC97471  Erodium cicutarium C. Witte 2007-5-10 20 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1368 Comment
  UC1222612  Eryngium aristulatum var. aristulatum Joseph P. Tracy 1951-6-21 19528 Humboldt in bed of former Goose Lake (back of Everett Beck house on ranch, Hydesville); Hydesville, , Everett Beck ranch house Comment
  SEINET5342590  Erysimum menziesii J. Tracy 1901-4-14 1019 Humboldt Humboldt Bay. Comment
  CAS-BOT-BC153744  Erythranthe alsinoides Mrs. A. W. Kildale 1925-4-1 s.n. Humboldt Near Korbel Comment
  CAS-BOT-BC504307  Erythronium californicum Doris K. Kildale 1928-5-1 5983 Humboldt MacLellan Mountain 914 Comment
  CAS-BOT-BC504309  Erythronium californicum Frank W. Gould 1939-5-30 826 Humboldt Top of Horse Mountain 1219 Comment
  CAS-BOT-BC403032  Eschscholzia californica Carl B. Wolf 1937-6-14 8824 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  UC146099  Eschscholzia californica Joseph P. Tracy 1904-7-4 2118 Humboldt near Bucksport; Northern Coast Region, region about Humboldt Bay 0 Comment
  HSC69578  Eucalyptus globulus R. Kalal 1980-6-1 7 Humboldt City of Arcata, along F street between 12th and 13th streets. 37 Comment
  UC204747  Euchiton sphaericus Joseph P. Tracy 1918-9-29 5103 Humboldt 4 mi above the mouth South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  HSC100937  Euonymus occidentalis Miss Handy Jun 1886 335 Humboldt Maple Cr. Comment
  BLMAR290  Euonymus occidentalis var. occidentalis Jennifer Anthony-Wheeler 2001-5-22 290 Humboldt Headwaters Forest Reserve, growing shaded streambank by ' babbits ridge ' 335 Comment
  UC1198972  Euphorbia crenulata Joseph P. Tracy 1925-5-17 6986 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC183758  Euphorbia crenulata Joseph P. Tracy 1912-7-27 3882 Humboldt Kneeland Prairie; Northern Coast Range 762 Comment
  UCR208901  Euphorbia crenulata M. S. Jussel 1931-5-2 s.n. Humboldt Northwestern Coast; Outer North Coast Ranges, 6 miles from Garberville Comment
  JEPS73678  Euphorbia helioscopia Dr. Lamphere 1939-3-25 Humboldt near mouth of Mad River; near mouth of Mad River 9 Comment
  CDA4817  Euphorbia helioscopia W. Simas 1962-12-4 Humboldt Fisher property, Island School Road, Ferndale. 0 Comment
  HSC59437  Euphorbia lathyris Kenneth Clark 1979-6-1 378 Humboldt 990 Union Ave., a weed in a backyard. Comment
  HSC7987  Euphorbia lathyris J. P. Tracy 1941-10-26 17052 Humboldt Hydesville 91 Comment
  HSC97316  Euphorbia oblongata M. Mesler 2007-6-9 761 Humboldt Titlow Hill Rd. 1067 Comment
  HSC96650  Euthamia occidentalis Thomas W. Nelson, Dick Brummitt, Barbara Ertter 2004-7-4 9282 Humboldt Trinity River Bar down stream from the mouth of Willow Creek 152 Comment
  UCD98913  Fallopia sachalinensis Joseph P. Tracy 1946-8-25 17634 Humboldt 1/2 mile S. of mouth of Elk River. 6 Comment
  HSC70397  Festuca californica M. A. Baker 1980-6-7 1805 Humboldt Near Brush Mtn. 1128 Comment
  UC526871  Festuca californica Joseph P. Tracy 1933-6-13 12603 Humboldt near summit on road from Hoopa w to Bair's; Hoopa Mountain 1066 Comment
  HSC98829  Festuca californica var. californica Cara Witte 2007-5-21 70 Humboldt White Oak Opening. 1257 Comment
  HSC63852  Festuca idahoensis M. A. Baker 1979-6-27 916 Humboldt S facing ridgeside Comment
Read comments
Feb 15 2013
  SEINET200326  Festuca myuros J. P. Tracy 1914-5-14 4432 Humboldt Northern Coast Ranges Fort Seward. 122 Comment
  HSC74474  Festuca occidentalis Gail Newton 1980-7-23 1752 Humboldt Near Packsaddle Ridge 1463 Comment
  UCD66138  Festuca occidentalis A. H. Murphy 1951-6-25 70 Humboldt Snow Camp meadow, ca. 8 miles e.n.e. of Kneeland. Comment
  UCD66180  Festuca occidentalis A. H. Murphy 1948-6-30 Humboldt 2 miles west of McComb's Ranch, Bald Hills, 7-8 miles southeast of Orick. Comment
  SBBG53089  Festuca perennis R. N. Philbrick, J. R. Haller 1976-6-26 9 Humboldt Capetown-Ferndale Rd, NW of Cape Mendocino, ca. 4 mi NW of Bear River at Capetown 457 Comment
  HSC47790  Festuca rubra Michael A. Watkins 1978-6-10 2 Humboldt Arcata, E side of the 7th Street overpass to Hwy. 101 Comment
  HSC9989  Festuca rubra R. H. Berg 1963-4-30 57 Humboldt 1 mi. N of Arcata, on Hwy. 101 Comment
  POM126115  Festuca rubra Joseph P. Tracy 1900-7-4 894 Humboldt Ocean Beach at Humboldt Bay. Comment
  UC526867  Festuca rubra Joseph P. Tracy 1927-6-8 8112 Humboldt Trinidad Northern Coast Region 60 Comment
  SEINET200725  Filago gallica J. P. Tracy 1914-5-14 4467 Humboldt Fort Seward 122 Comment
  CHSC19732  Fragaria chiloensis D. J. Jager 1965-5-12 66 Humboldt Ca. 1/2 mi. north of Trinidad on bluff above ocean. 45 Comment
  HSC47484  Fragaria chiloensis Sheila Logan 1978-4-7 1 Humboldt Samoa sand dunes, 1/4 mi. N of Coast Guard Station. Comment
  CAS-BOT-BC453516  Fragaria chiloensis W. R. Dudley 1899-6-1 s.n. Humboldt Pennisula of Eureka Comment
  HSC32950  Fragaria vesca Thomas W. Nelson, James Nelson 1973-5-28 959 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC70357  Fragaria vesca M. A. Baker 1980-6-7 1866 Humboldt Near Ammon Creek 732 Comment
  HSC73774  Fragaria vesca M. A. Baker 1980-6-7 1779 Humboldt Near Brush Mtn. 1128 Comment
  HSC89552  Fragaria vesca M. Roantree 1985-4-25 12 Humboldt E side of Trinidad Head Comment
  CAS-BOT-BC457928  Fragaria vesca subsp. californica Doris Kildale Gillespie 1980-5-10 656 Humboldt Shelter Cove, At base of coastal bluffs of Western beach, Point Delgada; Coastal Marine Terrace & Coastal Bluff 4 Comment
  HSC102047  Fragaria virginiana M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 950 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  HSC18399  Frangula californica Dale Thornburg 1968-11-10 Humboldt Hogback Ridge NE of Ammon Guard Station Comment
  HSC18411  Frangula purshiana L. D. Napier 1962-5-19 15 Humboldt 1 mi. E of Arcata on Fickle Hill 168 Comment
  SBBG26941  Frangula purshiana subsp. purshiana C. B. Wolf 1937-8-13 Humboldt 11 mi E of Hoopa Valley on new rd towards Trinity summit 1524 Comment
  HSC34910  Fritillaria affinis Thomas W. Nelson, James Nelson 1975-5-24 1841 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC14992  Fritillaria affinis J. P. Tracy 1901-4-26 1045 Humboldt immediate vicinity of Eureka (Humboldt Hill); Humboldt Hill 0 Comment
  UC275552  Fritillaria affinis Joseph P. Tracy 1923-4-15 6184 Humboldt Redwood Creek, at Berry's Redwood Creek; Northern Coast Ranges, , Berry's 274 Comment
  HSC22059  Fritillaria affinis Joel W. Reinhard 1966-5-6 31 Humboldt Two beaches N of College Cove Comment
  HSC38787  Fritillaria purdyi J. P. Smith 1976-5-30 8826 Humboldt Near Black Rock on road to Clear Lake 1524 Comment
  JEPS52710  Galium ambiguum subsp. ambiguum Lauramay T. Dempster and G. L. Stebbins Jr. 1963-7-9 3854 Humboldt along Hwy 36 about 1 mi w Mad River crossing (n-facing slope); Low Gap Sunday School 792 Comment
  HSC72984  Galium ambiguum subsp. siskiyouense M. A. Baker 1980-7-11 2773 Humboldt Near Red Mtn. 1341 Comment
  HSC32861  Galium aparine Thomas W. Nelson, James Nelson 1973-5-28 940 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1196095  Galium aparine Joseph P. Tracy 1935-7-23 14166 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  HSC71791  Galium bolanderi Gail Newton 1980-6-16 179 Humboldt Near Monks Camp. 1097 Comment
  RSA47104  Galium californicum Doris K. Kildale 1925-7-19 1053 Humboldt Bridgeville. 290 Comment
  JEPS52859  Galium californicum subsp. californicum Lauramay T. Dempster 1963-7-9 3849 Humboldt 4.4 mi s Bridgeville (on Hwy 36 to Dinsmore) 457 Comment
  JEPS6571  Galium parisiense Rimo Bacigalupi with G. T. Robbins 1954-6-28 4654 Humboldt 7.4 mi n Hoopa (along hwy, high above Trinity River, 4.6 mi n of Weitchpec); Six Rivers National Forest Comment
  UC169006  Galium parisiense Joseph P. Tracy 1911-7-4 3278 Humboldt near mouth of Willow Creek; Northern Coast Ranges, valley of Trinity River 152 Comment
  UC176990  Galium parisiense Joseph P. Tracy 1913-4-27 4042 Humboldt Eureka Comment
  POM266215  Galium parisiense Joseph P. Tracy 1939-8-5 16378 Humboldt Dinsmore's. Comment
  POM266166  Galium porrigens Ynez Whilton Winblad 1941-6-25 s.n. Humboldt Between Garberville and Pepperwood. Comment
  HSC34701  Galium porrigens var. porrigens Thomas W. Nelson 1974-8-24 1702 Humboldt Weitchpec, under highway bridge over Klamath River Comment
  HSC57191  Galium triflorum Griswold, Butler 1979-7-11 6908 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC76185  Galium triflorum Overton, Butler 1979-7-24 9770 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  UC168962  Galium triflorum Joseph P. Tracy 1907-6-20 2570 Humboldt Eureka Northern Coast Region 0 Comment
  UC127829  Gamochaeta ustulata Joseph Burtt Davy and Walter C. Blasdale 1899-5 5465 Humboldt near Elk Prairie; North Western California Comment
  CAS-BOT-BC200579  Garrya buxifolia Carl B. Wolf 1930-10-24 1762 Humboldt Along Klamath River, 1 mile above mouth of Slate Creek 243 Comment
  CAS-BOT-BC188537  Garrya elliptica Doris K. Kildale 1926-9-12 2667 Humboldt Klamath River near Requa. On trail between Ferry and bridge Comment
  CAS-BOT-BC188539  Garrya elliptica Alice Eastwood 1923-8-14 12321 Humboldt Samoa Comment
  HSC33744  Garrya elliptica J. M. Sauser 1975-5-24 73 Humboldt Samoa dunes off Samoa Blvd. from boat landing Comment
  HSC39952  Garrya elliptica Linda M. Barker 1976-1-24 1310 Humboldt 3 mi. W of Arcata Comment
  HSC8390  Garrya elliptica C. O. Baker 1962-3-22 3 Humboldt 2 mi. S of Trinidad along old Hwy. 101 122 Comment
  LA40298  Garrya elliptica H. E. Parks; February 1933 - March 1933 4287 Humboldt Trinidad Comment
  UC1541255  Garrya elliptica Harold E. Parks Feb 1934 4773 Humboldt on heads at Spruce Cove (Trinidad); Trinidad Comment
  HSC40855  Garrya fremontii Thomas W. Nelson 1976-7-9 2992 Humboldt Ridge S of the E peak of the Lassic Peak (Signal peak) group. 1707 Comment
  HSC8392  Garrya fremontii C. B. Wolf 1930-10-24 1762 Humboldt Along Klamath River 1.0mi above mouth of Slate Creek 244 Comment
  HSC8394  Garrya fremontii J. Wendell Howe Apr 1931 102 Humboldt Kneeland Prairie Comment
  UC668298  Garrya fremontii Joseph P. Tracy 1933-3-5 10918 Humboldt Alton North Coast Ranges (along Van Duzen River) 30 Comment
  UCSB72514  Garrya fremontii Moseley, Maynard 1952-8-21 Humboldt Along western valley wall of Willow Creek, mostly within Hoppe Indian Reservation, upstream from Willow Village 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
  UC902050  Gaultheria ovatifolia Joseph P. Tracy 1949-8-11 18456 Humboldt Snow Camp 1432 Comment
  RSA2931  Gaultheria shallon C. B. Wolf 1931-8-29 1242 Humboldt Near summit of Orick Hill on road to Weitchpec. 305 Comment
  UC1193364  Gaultheria shallon P. Zinke 1950-9-21 164 Humboldt Outside National Forest, Kerr Peak Kerr Peak; Outside National Forest, Kerr Peak 609 Comment
  HSC97985  Gayophytum diffusum subsp. parviflorum Cara Witte 2007-7-11 502 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  UC422799  Gayophytum heterozygum Chesnut and Drew Humboldt Comment
  HSC55166  Gayophytum ramosissimum Gilbert Muth 1979-8-1 12157 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC14654  Genista monspessulana William J. Ferlatte 1963-4-21 18 Humboldt Near 11th and A St., Arcata Comment
Read comments
Dec 18 2011
  CAS-BOT-BC217395  Gentiana affinis var. ovata L. R. Abrams 1916-7-20 6145 Humboldt Eureka Comment
  JEPS76805  Gentiana plurisetosa Theodore F. Niehaus 1972-8-29 935 Humboldt 0.25 to 0.50 e on right side (s) Trinity Summit Station old horse trail (directly e from crossing of new forest road at Crogan Creek, a tributary of upper Tish-Tang a Tang Creek); Salmon Mts. 1706 Comment
  HSC96464  Gentiana sceptrum Gordon Leppig 1997-8-3 636 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  HSC59717  Geranium dissectum Clark L. Miller 1979-5-9 2111 Humboldt Samoa Dunes off Samoa Blvd. Comment
  RSA0028457  Geranium dissectum H. E. Parks, S. T. Parks 1938-04 24118 Humboldt Spruce Cove, Trinidad. 61 Comment
  UC1198955  Geranium molle Joseph P. Tracy 1933-5-19 12198 Humboldt Alton to Fortuna (along the Eel River); Eel River 15 Comment
  HSC8655  Geranium molle Francis Winter 1960-4-30 Humboldt Samoa Peninsula, 6 mi. W of Arcata. Comment
  UC166037  Geranium solanderi J. P. Tracy 1911-6-11 3238 Humboldt Trinidad station 91 Comment
  UC60880  Gilia capitata subsp. capitata Harley P. Chandler June, 1901 1447 Humboldt Klamath River North Coast Ranges, Klamath River 243 Comment
  BLMAR718  Gilia capitata subsp. pacifica Jennifer Wheeler 2012-6-5 718 Humboldt King range, Mattole beach bluffs 18 Comment
  CDA40044  Gilia capitata subsp. pacifica Gordon Leppig 2003-6-25 1990 Humboldt The Pacific Lumber Company, THP 1-02-306 HUM. East side headwaters of Brushy Creek. Comment
  RSA742109  Gilia capitata subsp. pacifica Peter L. Morrell, Nicole Deligans 1993-8-14 317 Humboldt North Coast: about 1 mile south of McNutt-Mattole Rd., 5.2 miles south of Devil's Gate, 8.4 miles south of Cape Mendocino. 30 Comment
  UC1197923  Gilia capitata subsp. pacifica Joseph P. Tracy 1925-5-24 7010 Humboldt Kneeland Prairie 762 Comment
  RSA742086  Gilia millefoliata Peter L. Morrell 1993-6-9 280 Humboldt North Coast: Samoa Peninsula, near Eureka, along Hwy 255, 1.5 miles south of Samoa intersection, west side of highway 7 Comment
  UC1197907  Gilia millefoliata Joseph P. Tracy 1931-6-15 9583 Humboldt sandy ground along bay shore at Bucksport (around Humboldt Bay); Northern Coast Region, around Humboldt Bay 6 Comment
  UC146177  Gilia millefoliata Joseph P. Tracy 1905-6-11 2190 Humboldt sandy soil at Bucksport Northern Coast Region, region about Humboldt Bay (region about Humboldt Bay) 0 Comment
  HSC97919  Githopsis specularioides Cara Witte 2007-6-19 303 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 Comment
  CAS-BOT-BC303706  Glebionis segetum Paul F. Covel 1939-8-7 1651 Humboldt Beach at Little River Comment
  JEPS14217  Glehnia littoralis subsp. leiocarpa Joseph P. Tracy 1927-6-26 8207 Humboldt beach along ocean Stone Lagoon 6 Comment
  HSC10078  Glyceria declinata R. S. White 1965-5-19 87 Humboldt 5 mi. S of Samoa along the Samoa Rd. Comment
  CAS-BOT-BC280551  Glyceria elata Henry M. Pollard 1948-8-9 s.n. Humboldt Camp Creek near Orleans 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
  SEINET11678065  Glyceria striata H. P. Chandler 1901-1 1526 Humboldt Klamath River, North Coast Ranges 427 Comment
  SEINET11849352  Gnaphalium chilense J. P. Tracy 1950-1 19044 Humboldt Trinity River, E side, 1 mi N of mouth of Willow Creek Comment
  HSC103605  Gnaphalium palustre Thomas W. Nelson, Jane Nelson 1985-8-5 8000 Humboldt Eureka; along old logging road just east of Lundbar Hills. 46 Comment
  HSC98555  Goodyera oblongifolia Cara Witte 2007-9-3 643 Humboldt Forest Service Road 5N09. 1 mile east of intersection with National Forest 1. 1332 Comment
  UC582833  Goodyera oblongifolia P. A. Munz 1936-8-10 14336 Humboldt 15 mi e of Fortuna (Van Duzen River); Van Duzen River Comment
  UC582586  Gratiola ebracteata Joseph P. Tracy 1936-6-28 15022 Humboldt Bald Mountain , at Lake Prairie (at Lake Prairie) 1066 Comment
  JEPS4221  Gratiola ebracteata J. P. Tracy 1908-6-7 2618 Humboldt Butler Valley , Butler Valley (Mad River) 152 Comment
  SEINET12641404  Gratiola ebracteata Unknown 1936-1 15022 Humboldt Bald Mountain ; at "Lake Prairie in bog Comment
  CAS-BOT-BC304752  Grindelia hirsutula H. E. Parks; S. T. Parks 1930-9-14 0773 Humboldt North shore of Big Lagoon Comment
  UC1192227  Grindelia hirsutula Malcolm A. Nobs and S. Galen Smith 1949-8-3 1179 Humboldt salt marshes around Fields Landing Fields Landing Comment
  UC166461  Grindelia hirsutula Joseph P. Tracy 1909-9-19 3094 Humboldt along salt water sloghs near Samoa; Humboldt Bay Comment
Read comments
Dec 17 2011
  POM187851  Grindelia stricta var. stricta Marcus E. Jones 1931-7-16 29143 Humboldt Arcata. Comment
  RSA47124  Grindelia stricta var. stricta Doris K. Kildale 1925-7-15 1080 Humboldt Eureka Slough. Comment
  UCD132571  Grindelia stricta var. stricta Gordon Leppig 1998-8-6 994 Humboldt Arcata, Arcata Marsh and Wildlife Sanctuary. On Humboldt bay side of Klopp Lake dike. 2 Comment
  UC667133  Hastingsia alba Joseph P. Tracy 1935-7-24 14195 Humboldt Trinity Summit near Ranger Station; Trinity Summit 1828 Comment
  HSC52152  Helenium bigelovii Griswold, Butler 1979-7-11 7007 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC99088  Helenium bigelovii Cara Witte 2008-8-6 1010 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1486 Comment
  CAS-BOT-BC306864  Helenium bolanderi Doris K. Kildale 1926-7-16 2384 Humboldt Big Lagoon Comment
  OBI16344  Helenium bolanderi Carl B. Wolf 1937-8-10 9089 Humboldt Big Lagoon, Bog at State Park 6 Comment
  UC176474  Helenium bolanderi Joseph P. Tracy 1913-7-13 4355 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 30 Comment
  CAS-BOT-BC306870  Helenium bolanderi Volney Rattan 1879-1-1 s.n. Humboldt Unspecified Comment
  HSC30151  Hemitomes congestum Kennith Irwin 1973-5-31 Humboldt Patrick's Point. Bulk Collection 80 Comment
  HSC63140  Hemitomes congestum M. A. Baker 1979-6-29 952 Humboldt 900 Comment
  HSC53816  Hemizonella minima Griswold, Butler 1979-7-10 6253 Humboldt Near Board Camp Mountain, close to the town of Willow Creek 1494 Comment
  UC175088  Hemizonia congesta subsp. clevelandii T. S. Brandegee 1898-7-1 Humboldt Mad River Comment
  UC495624  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1928-9-2 8494 Humboldt Dobbyn Creek Northern Coast Ranges Comment
  CAS-BOT-BC306036  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1930-9-1 9174 Humboldt Northern Coast Ranges. Miranda; along South Fork of Eel River 121 Comment
  UC427869  Hemizonia congesta subsp. tracyi H. E. Parks, J. P. Tracy 1930-5-25 880 Humboldt near Bridgeville Comment
  RSA168837  Hemizonia tracyi Joseph P. Tracy 1950-6-8 18757 Humboldt At Domingo Hill Comment
  CDA40920  Heracleum lanatum P. Haggard 2002-8-23 PDR P 070809 Humboldt North Coast; Wildlife Refuge in the vicinity of Eureka. Sheet 3 of 3 0 Comment
  JEPS14232  Heracleum lanatum Joseph P. Tracy 1934-7-27 13491 Humboldt near mouth Mad R. 15 Comment
  HSC102168  Heracleum maximum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1080 Humboldt Patterson Meadows 1555 Comment
  UC1116245  Heterocodon rariflorum Joseph P. Tracy 1942-6-15 17158 Humboldt Garberville 304 Comment
  SEINET10840490  Heterocodon rariflorum Anderson 1974-6-17 Anderson 5709 Humboldt MCKEOWN RANCH N OF DINSMORE OAK, DOUG FIR WOODLAND. T2N R5E SECS 283334 Comment
  CAS-BOT-BC143655  Heteromeles arbutifolia Doris K. Kildale 1928-7-1 5315 Humboldt Klamath RIver at mouth of Bluff Creek Comment
  UC485473  Heterotheca oregona var. rudis unknown Humboldt Chandler, <rest illegible> Klamath River Comment
  UC1198856  Heuchera merriamii Joseph P. Tracy 1932-7-18 10715 Humboldt head of Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  HSC64875  Heuchera micrantha J. P. Smith 1973-5-26 6825 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC56932  Hieracium albiflorum G. L. Clifton, Butler 1979-7-26 9368 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC98820  Hieracium albiflorum Cara Witte 2008-7-30 963 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1589 Comment
  UCD115146  Hirschfeldia incana Joseph P. Tracy 1931-5-21 9434 Humboldt Eel River, Alton to Fortuna. 15 Comment
  UC180502  Holcus mollis Joseph P. Tracy 1914-9-13 4626 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC149902  Holodiscus discolor Doris K. Kildale 1927-7-17 3755 Humboldt Bug Creek 792 Comment
  HSC58004  Holodiscus discolor G. L. Clifton, Griswold 1979-7-31 11789 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  RSA449759  Holodiscus discolor Thekla Mohr 1918-07 3349 Humboldt Eel River. Comment
  UCR32150  Holodiscus discolor David J. Keil 1983-7-1 17262 Humboldt North Coast Range, Bull Creek Flats Road, c. 8 mi west of junction US 101 Comment
  UC1103739  Hordeum marinum subsp. gussoneanum Joseph P. Tracy 1939-4-29 16262 Humboldt Orleans 121 Comment
  UC34063  Hordeum marinum subsp. gussoneanum J. P. Tracy 1901-6-16 1144 Humboldt immediate vicinity Eureka; immediate vicinity Eureka 0 Comment
  CAS-BOT-BC536627  Horkelia californica Joseph P. Tracy 1949-7-7 18332 Humboldt Table Bluff Ridge 91 Comment
  CAS-BOT-BC536629  Horkelia californica Paul F. Covel 1937-7-13 800 Humboldt Cape Fortuna Comment
  CHSC97957  Horkelia tridentata subsp. flavescens April A. Allard; Gregory D. O'Connell 2005-6-24 16 Humboldt Roadside meadow. 1648 Comment
  UC1565797  Horkelia tridentata subsp. flavescens R. Spellenberg 1990-7-10 10239 Humboldt 11 air mi e Burnt Ranch (Buck Flat, at junction of USFS Rd. 5N01 and USFS Rd. 1, 12 mi s of Berry Summit (on Hwy 299)); extreme e edge of county 1432 Comment
  CAS-BOT-BC537898  Horkelia tridentata var. flavescens Alice Eastwood; John Thomas Howell 1937-6-23 4806 Humboldt Little Van Duzen River Comment
  HSC44374  Hosackia crassifolia Thomas W. Nelson, Jane P. Nelson 1977-7-4 3614 Humboldt Along road N of Alder Springs. 1524 Comment
  HSC98277  Hosackia crassifolia D. E. Anderson 1961-9-30 1848 Humboldt Divide Lake. 915 Comment
  UCSB13143  Hosackia crassifolia Breedlove, Dennis 1961-7-4 Humboldt 2.5 mi. E of the Mad River bridge on U.S. 299 426 Comment
  SBBG3399  Hosackia crassifolia var. crassifolia H. and M. Dearing 1939-5-24 3418 Humboldt pass, Dyerville-Mattole Rd Comment
  HSC62699  Hydrocotyle ranunculoides Michelle Stevens 1979-5-18 118 Humboldt Ponds across from Clam Beach 0 Comment
  UC1239766  Hydrophyllum occidentale Joseph P. Tracy Jul 16 1930-Jul 19 1930 9085 Humboldt South Fork Mountain Northern Coast Ranges (near McKay Camp) 1676 Comment
  POM258591  Hydrophyllum occidentale Lincoln Constance, A. A. Beetle, Joseph P. Tracy 1940-5-17 2618 Humboldt NW slope, Lower slopes of Buck Mtn, near Eureka. 793 Comment
  HSC62688  Hydrophyllum tenuipes Michelle Stevens 1979-4-21 60 Humboldt Ponds across from Clam Beach 0 Comment
  UC24091  Hydrophyllum tenuipes W. C. Blasdale 1896-6-3 Humboldt Blue Lake Comment
  UC582692  Hydrophyllum tenuipes Joseph P. Tracy 1937-7-2 15403 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC1239761  Hydrophyllum tenuipes Joseph P. Tracy 1933-6-11 12558 Humboldt Holmes Flat 60 Comment
  HSC57965  Hypericum anagalloides G. L. Clifton, Griswold 1979-7-31 11676 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC1198419  Hypericum formosum var. scouleri J. P. Tracy 1898-7-5 249 Humboldt near Ryan's Slough School House on Worthington Prairie (immediate vicinity of Eureka) 0 Comment
  HSC58239  Hypericum perforatum G. L. Clifton, Griswold 1979-8-2 12403 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  JEPS66832  Hypericum perforatum W. L. Jepson 1902-7-4 1984 Humboldt Hupa, Camp Gaston Comment
  UC668258  Hypericum perforatum Joseph P. Tracy 1933-7-3 12641 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  POM311762  Hypericum perforatum Karen Hosterman 1957-8-29 1109 Humboldt 7 miles from Orleans, within 1 mile of junction of Klamath Road and Red Cap Creek. 114 Comment
  UC1103806  Ionopsidium acaule Joseph P. Tracy 1920-3-3 5313 Humboldt Eureka, around Humboldt Bay, (J.P.T's garden) Eureka; Northern Coast Region, Eureka 30 Comment
  HSC79354  Iris chrysophylla T. Jimerson, J. Pageau 1980-5-16 900 Humboldt Orleans, on FS Rd. 12N21 where it joins FS Rds. 11N30 and 11N38, Orleans Rd., ridge saddle 915 Comment
  UC615044  Iris douglasiana Beryl O. Schreiber 1934-6-5 1134 Humboldt 15 mi e Blue Lake (road to Redding) Comment
  RSA40408  Iris douglasiana Philip A. Munz, Lee W. Lenz 1948-8-13 12350 Humboldt 8 miles east of Blue Lake, on Highway 299 305 Comment
  HSC104075  Iris purdyi S. Carothers 2001-6-7 Humboldt Six Rivers National Forest; Lassics Botanical Area; below blue serpentine ridge, above Rd. 1S11 1585 Comment
  RSA135936  Iris purdyi Lee W. Lenz, E. K. Balls 1952-5-11 17192 Humboldt 3.2 miles northeast from Harris on road from Zenia and Alder-point to Garberville Comment
  HSC66483  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-4-27 436 Humboldt FS Rd. 12N20, 0.2 mi. N of FS Rd. 15N01 (G.O. Rd.), Orleans 710 Comment
  JEPS93202  Iris tenax subsp. klamathensis Carol A. Wilson 1986-5-15 86 -4 Humboldt near Orleans (along road (Orleans Alternate/Ishi Pishi Rd) where crosses Ishi Pishi Bridge just s of Somes Bar); Orleans Alternate/Ishi Pishi Rd Comment
  RSA275383  Iris tenax subsp. klamathensis J. P. Smith, J. O. Sawyer, J. Cole 1978-5-21 9925 Humboldt Ishi Pishi Road, 2.5 miles from its junction with Route 36 in Orleans. 213 Comment
  UC14929  Iris tenuissima Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  HSC49284  Iris tenuissima J. O. Sawyer 1977-4-23 2839 Humboldt On road to Fish Lake Comment
  HSC99375  Iris tenuissima subsp. tenuissima K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 24 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1433 Comment
  JEPS60151  Isoetes nuttallii Joseph P. Tracy 1935-5-25 13841 Humboldt Fort Seward 106 Comment
  HSC7450  Isolepis cernua J. P. Tracy 1938-6-16 15942 Humboldt Trinidad 3 Comment
  HSC96363  Isolepis setacea Gordon Leppig 1999-10-3 1257 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  CAS-BOT-BC340228  Jaumea carnosa Marcus E. Jones 1931-7-16 2911 Humboldt Arcata Comment
  UC1220310  Jaumea carnosa D. E. Anderson 1963-9-15 2812 Humboldt salt marsh bordering Humboldt Bay Comment
  UC249817  Juncus bolanderi Joseph P. Tracy 1924-7-13 6730 Humboldt Big Lagoon 6 Comment
  RSA129413  Juncus breweri H. S. Yates 1936-6-16 5655 Humboldt 1/2 mile southwest of Samoa. 3 Comment
  HSC13997  Juncus bufonius Paul Shields 1955-6-18 Humboldt H.S.C. campus Comment
  RSA168858  Juncus bufonius Joseph P. Tracy 1927-6-19 8197 Humboldt Big Lagoon. Comment
  POM208990  Juncus bufonius Lincoln Constance 1934-6-12 862 Humboldt S Fork of Eel River, N end of Dyerville bridge, Humboldt Redwood Park. 46 Comment
  UC1152110  Juncus covillei Joseph P. Tracy 1934-7-14 13401 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  CAS-BOT-BC110123  Juncus dudleyi Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  HSC98602  Juncus effusus Cara Witte 2007-6-28 383 Humboldt FS Road 5N10. Approximately 0.5 mi E of intersection with National Forest 1. 1426 Comment
  HSC90769  Juncus ensifolius Gail Newton 1982-6-10 3597 Humboldt Elk River Wildlife Area, Eureka Comment
  UC1152146  Juncus ensifolius Joseph P. Tracy 1938-9-25 16171 Humboldt Lake Prairie 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
  CHSC110174  Juncus falcatus subsp. sitchensis Peter F. Zika 2007-6-30 23319 Humboldt SW corner of Big Lagoon, (NCo, North Coast). 2 Comment
  UCD150386  Juncus hesperius William Anderson and H. Mc. 1964-8-6 s.n. Humboldt Little River. Comment
  HSC63878  Juncus laccatus M. A. Baker 1979-6-29 957 Humboldt Hopkins Creek 750 Comment
  HSC69632  Juncus lescurii R. Kalal 1980-6-3 27 Humboldt Samoa Dunes, along Samoa Blvd., near Eureka 3 Comment
  SEINET3879721  Juncus lescurii James P. Smith, Thomas W. Nelson 1977-6-30 9220 Humboldt Samoa Peninsula just east of the drag strip.; 0 Comment
  CHSC103201  Juncus occidentalis Peter F. Zika 2009-6-16 24496 Humboldt Outer North Coast Range, between Lord-Ellis and Berry summits. Above Chezen Road, at junction with Route 299. 510 Comment
  HSC58005  Juncus parryi G. L. Clifton, Griswold 1979-7-31 11791 Humboldt Near the Trinity Summit Guard Station, close to the town of Hoopa. 1804 Comment
  UCR136653  Keckiella corymbosa H. M. Pollard 1948-8-12 s.n. Humboldt Near mouth of Pearch Creek, near Orleans 366 Comment
  CAS-BOT-BC237833  Keckiella lemmonii Joseph P. Tracy 1929-8-4 8648 Humboldt Ridge between Bull Creek and Mattole River 762 Comment
  UC213502  Keckiella lemmonii Joseph P. Tracy 1920-8-15 5352 Humboldt mouth of Slate Creek; Northern Coast Ranges, Klamath River 152 Comment
  HSC56117  Kelloggia galioides Gilbert Muth 1979-8-1 11893 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  UC1223072  Lactuca serriola Joseph P. Tracy 1949-8-8 18402 Humboldt at Willow Creek (in Frank Graham's orchard); Trinity River Valley 152 Comment
  UC581803  Lagophylla ramosissima Joseph P. Tracy 1934-7-9 13354 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC352932  Lasthenia glaberrima Joseph P. Tracy 1930-6-15 8748 Humboldt Larrabee Creek, near Bosworth's 457 Comment
  UC1222406  Lathyrus angulatus Joseph P. Tracy 1942-6-15 17133 Humboldt near Redcrest Resort (Englewood); Englewood 91 Comment
  UC169304  Lathyrus glandulosus Joseph P. Tracy 1912-7-26 3855 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC49393  Lathyrus littoralis R. York 1979-5-15 291 Humboldt Coastal strand opposite the Louisiana Pacific Mill in Samoa. Comment
  SEINET955878  Lathyrus littoralis Gordon Leppig, Kai Neander 1998-1 787 Humboldt Big Lagoon State Park. 2 Comment
  HSC102562  Lathyrus nevadensis var. nevadensis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1549 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC1222415  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1942-6-23 17226 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UCD106342  Lathyrus polyphyllus A. Murphy 1951-5-15 s.n. Humboldt Half mile S. of South Fork on McCann Road. Comment
  HSC33771  Lathyrus tingitanus Lon Hall 1975-5-24 383 Humboldt Samoa Dunes, off Samoa Blvd., across from the boat landing Comment
  HSC79488  Lathyrus vestitus subsp. bolanderi Kenneth Clark 1980-3-24 538 Humboldt Upper Terrace of Dead Man's Gulch 76 Comment
  RSA405756  Lathyrus vestitus subsp. vestitus Unspecified 1924-7-11 s.n. Humboldt Arcata Comment
  UC1103516  Lemna minuscula Joseph P. Tracy 1919-9-14 5212 Humboldt opposite Willow Creek (Lack Pond on Trinity River); Northern Coast Ranges, Trinity River, Lack Pond 152 Comment
  UCSB22188  Lemna obscura Joseph Keefe 1967-7-8 1862 a Humboldt collected along the E-side of U S Highway 101 turnoff to Crannell Road N of Eureka U S Highway 101, Crannell Road and Eureka 6 Comment
  SD87756  Leontodon saxatilis subsp. saxatilis F. W. Peirson 1926-7-13 7056 Humboldt Mad River, near Blue Lake Comment
  UC1239531  Leontodon saxatilis subsp. saxatilis Joseph P. Tracy 1921-7-10 5848 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  CAS-BOT-BC88801  Lepidium campestre M. S. Jussel 1931-5-2 s.n. Humboldt 20 miles north of Garberville. Comment
  JEPS53711  Lepidium nitidum Joseph P. Tracy 1918-5-5 4927 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  UC1199168  Lepidium virginicum Joseph P. Tracy 1900-9-9 959 Humboldt near Hydesville; Northern Coast Region, Van Duzen River 60 Comment
  HSC45831  Leptosiphon androsaceus J. P. Smith, J. O. Sawyer 1973-5-12 6685 Humboldt 3.8 mi. from Redwood Creek on Hoopa road Comment
  HSC74229  Leptosiphon ciliatus M. A. Baker 1980-7-15 2958 Humboldt Near Whiting Ridge. 1341 Comment
  UC1199333  Lessingia nemaclada Joseph P. Tracy 1939-8-5 16374 Humboldt gravel bar of river opposite Buck Mt.; Van Duzen River, Dinsmore's 737 Comment
  POM266015  Lewisia cotyledon var. howellii Lincoln Constance, Reed C. Rollins 1942-5-12 s.n. Humboldt Mouth of Bluff Creek, 6 miles NE of Weitchpec. 152 Comment
  HSC73865  Lewisia nevadensis M. A. Baker 1980-6-28 2500 Humboldt Near Mad River Buttes 1445 Comment
  JEPS5842  Lewisia nevadensis Joseph P. Tracy 1932-7-10 10377 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1198372  Lewisia triphylla Joseph P. Tracy 1932-7-18 10711 Humboldt Head of Brett Hole Trinity Summit 1828 Comment
  RSA10017  Leymus mollis subsp. mollis Joseph P. Tracy 1927-5-1 7954 Humboldt Sand dunes near Samoa, on Humboldt Bay 6 Comment
  SEINET200639 Image available Leymus mollis subsp. mollis Joseph P. Tracy 1923-5-19 6212 Humboldt Trinidad. Comment
  UC249795  Leymus mollis subsp. mollis Joseph P. Tracy 1923-5-19 6212 Humboldt Trinidad Northern Coast Ranges (ocean beach) 3 Comment
  UC1197175  Ligusticum apiifolium J. P. Tracy 1902-7-4 1756 Humboldt immediate vicinity Eureka 0 Comment
  HSC99076  Ligusticum apiifolium Cara Witte 2007-7-3 405 Humboldt National Forest 1 on Kinsey Ridge. 1/4 mile south of intersection with 4N06. Near power poles. 1231 Comment
  JEPS17503  Ligusticum apiifolium W. L. Jepson 1902-6-30 1959 Humboldt on Hupa Rd. near Redwook Creek Comment
  JEPS17504  Ligusticum apiifolium W. L. Jepson 1902-6-30 1959 Humboldt on Hupa Rd. near Redwook Creek Comment
  UC183660  Ligusticum apiifolium Joseph P. Tracy 1912-8-3 3970 Humboldt opposite Buck Mt. (Dinsmore's Ranch, Van Duzen R. Valley); Northern Coast Ranges, Van Duzen R. Valley, Dinsmore's Ranch 762 Comment
  UC642252  Ligusticum apiifolium Joseph P. Tracy 1934-7-22 13485 Humboldt at crossing of Kneeland to Bridgeville rd. North Yager Creek 396 Comment
  HSC102534  Ligusticum grayi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1520 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  UC1400384  Lilaeopsis occidentalis Robert F. Thorne and P. Everett 1965-8-7 35207 Humboldt Samoa Peninsula 0 Comment
  RSA12433  Lilium bolanderi Carl B. Wolf 1934-7-2 5860 Humboldt 2 miles from Snow Camp on road to Bald Mountain. 1067 Comment
  UC55889  Lilium columbianum J. P. Tracy 1902-7-4 1755 Humboldt immediate vicinity Eureka (near Ryan's Slough Hill) 0 Comment
  HSC15569  Lilium columbianum D. G. Hauger 1967-7-22 41 Humboldt 0.5 mi. S of Dry Lagoon Comment
  CAS-BOT-BC130682  Lilium occidentale Doris K. Kildale 1925-6-25 751 Humboldt Eden Tract - Eureka, Pine's Pasture Comment
  RSA130332  Lilium occidentale Albert M. Vollmer, L. Beane 1953-07 118 Humboldt Humboldt County Comment
  UC673408  Lilium occidentale Herbert L. Mason 1932-7-21 7106 Humboldt Trinidad Head Comment
  UC615032  Lilium washingtonianum subsp. purpurascens Beryl O. Schreiber 1934-6-5 1142 Humboldt Gray's Resort; Redwood Creek Comment
  HSC15780  Limnanthes douglasii D. E. Anderson 1965-5-8 3634 Humboldt 4 mi. E of Berry Summit along Hwy. 299 Comment
  HSC15789  Limnanthes douglasii Francis Winter 1960-5-7 Humboldt 3 mi. NE of Redwood Creek Ranch. 610 Comment
  BLMAR734  Limnanthes douglasii subsp. nivea Jennifer Wheeler 2015-4-28 734 Humboldt Larabee Butte, Roadside pasture at Butte Creek Access Rd 722 Comment
  UC1198590  Linanthus androsaceus Joseph P. Tracy 1927-6-5 8120 Humboldt Bridgeville 198 Comment
  UC1198545  Linanthus bolanderi Joseph P. Tracy 1911-7-7 3393 Humboldt 2 mi nw junction of Willow Creek with Trinity River (near the Beebe's Ranch) 914 Comment
  UC127602  Linanthus filipes J. Burtt Davy 1899-6-20 Humboldt Hoopa Valley Comment
  UC23540  Linanthus filipes Harley P. Chandler Jun 1901 1309 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  CAS-BOT-BC240376  Linnaea borealis subsp. longiflora Volney Rattan 1878-1-1 s.n. Humboldt Near head of Willow Creek Comment
  UC1222491  Linnaea borealis var. longiflora Joseph P. Tracy 1950-6-21 18857 Humboldt along Trinity Highway e of crossing Cedar Creek (Willow Creek Canyon); , e of crossing of Cedar Creek 762 Comment
  HSC59190  Linum bienne Terry Roth 1979-5-29 95 Humboldt Arcata, off of Sunset Ave. near the old mill location. Comment
  HSC59497  Linum bienne M. A. Ericksen 1979-5-23 304 Humboldt 880 Central Ave., McKinleyville. Comment
  UC666982  Listera caurina Joseph P. Tracy 1930-7-17 9016 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC35034  Lithocarpus densiflorus Chesnut and Drew 1888-7-25 Humboldt Grouse Creek Comment
  SACT002878  Lithocarpus densiflorus D. McIntosh, L. Sanny 1959-3-1 Humboldt Densely covered hillside Comment
  CAS-BOT-BC36104  Lithocarpus densiflorus var. densiflorus Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  POM270405  Lithocarpus densiflorus var. densiflorus Lyman Benson 1929-7-19 1869 Humboldt Dry slope west of Bull Creek. Comment
  RSA55100  Lithocarpus densiflorus var. densiflorus O. J. Murie 1934-11-30 2532 Humboldt South of Gerberville. Comment
  CAS-BOT-BC36581  Lithocarpus densiflorus var. echinoides Doris Kildale Gillespie 1931-6-7 10604 Humboldt South Fork Mt., Brush lookout 1726 Comment
  UC492223  Lithophragma Joseph P. Tracy 1932-4-24 9823 Humboldt South Fork of Eel River between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  UC1196495  Lithophragma affine Joseph P. Tracy 1921-5-30 5488 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC70567  Lithophragma heterophyllum M. A. Baker 1980-7-19 3022 Humboldt Near Bret Hole. 1814 Comment
  CAS-BOT-BC283402  Lolium multiflorum Malcom A. Nobs; S. Galen Smith 1949-8-3 1177 Humboldt Salt marshes around Fields Landing Comment
  UC167379  Lolium multiflorum Joseph Burtt Davy 1899-7-30 6212 Humboldt Russ Ranch Comment
  UCD66191  Lolium multiflorum Malcolm A. Nobs; S. Galen Smith 1949-8-3 1177 Humboldt Around Fields Landing. Comment
  HSC10306  Lolium perenne R. H. Berg 1963-2-27 4 Humboldt Arcata, Fickle Hill area. Comment
  HSC64156  Lolium perenne J. O. Sawyer, K. A. Sawyer 1979-6-24 3403 Humboldt Slopes alongside Aikens Creek. 366 Comment
  SEINET194910 Image available Lolium perenne A. A. Heller 1923-7-9 13779 Humboldt Arcata near 10 Comment
  UC1103156  Lolium temulentum Joseph P. Tracy 1913-6-19 4211 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC249794  Lolium temulentum Joseph P. Tracy 1923-6-27 6382 Humboldt Trinity River Valley, near the South Fork; Northern Coast Ranges, Trinity River Valley, near South Fork 182 Comment
  HSC73721  Lomatium californicum M. A. Baker 1980-7-15 2954 Humboldt Near Whiting Ridge. 1341 Comment
  HSC39043  Lomatium ciliolatum var. ciliolatum Thomas W. Nelson, Jane P. Nelson 1976-5-31 2657 Humboldt County line, S of meadow along 5E27 just N of its junction with 1S07 1524 Comment
  HSC24400  Lomatium dasycarpum subsp. dasycarpum J. O. Sawyer 1970-6-24 2223 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC56003  Lomatium macrocarpum Overton, Butler 1979-7-31 11454 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC33054  Lomatium macrocarpum Thomas W. Nelson 1974-5-7 1233 Humboldt Beside airstrip at Kneeland Prairie Comment
  UC1222607  Lomatium macrocarpum Joseph P. Tracy 1951-6-24 19537 Humboldt atop ridge near Ashfield Butte (Kneeland Prairie); Kneeland Prairie 1676 Comment
  UC1463743  Lomatium tracyi Barbara Kelly 1978-5-1 590 Humboldt 1/4 mi from Horse Mountain Road, 1/2 mi below turnoff to summit, near end of unused gravel road. Comment
  UC906644  Lomatium triternatum var. triternatum Joseph P. Tracy 1942-6-23 17228 Humboldt 1 mi. w. Box Camp (Trinity Summit); Trinity Summit 1219 Comment
  OBI81593  Lomatium utriculatum Coll. Tracey, Viola Call 1964-6-20 2272 Humboldt South-facing rocky outcropping near summit above Van Duzen river 7miles east of Bridgeville. 853 Comment
  UC906652  Lomatium utriculatum Joseph P. Tracy 1947-6-8 17707 Humboldt 5 mi. e. Carlotta (open flat by old Strong's District School House) 45 Comment
  JEPS12868  Lonicera ciliosa Joseph P. Tracy 1921-6-19 5836 Humboldt viz. ridge n Willow Creek (between Willow and Campbell Creeks); Northern Coast Ranges, Brannan Mountain 944 Comment
  HSC58290  Lonicera conjugialis Walter Overton, Marvin Butler 1979-8-2 12554 Humboldt Near Bret Hole, close to the town of Hoopa. 1554 Comment
  HSC60070  Lonicera hispidula var. vacillans M. A. Baker 1978-5-6 502 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  CAS-BOT-BC241484  Lonicera involucrata var. ledebourii Doris K. Kildale 1925-9-26 1363 Humboldt Mouth of Mad River - coast Comment
  CAS-BOT-BC241496  Lonicera involucrata var. ledebourii Huron H. Smith 1911-6-4 3801 Humboldt Trinidad Comment
  HSC96530  Lonicera involucrata var. ledebourii Gordon Leppig 1998-5-11 758 Humboldt Big Lagoon County Park. 3 Comment
  UC162798  Lotus aboriginus Joseph P. Tracy 1906-6-10 2485 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC493999  Lotus aboriginus H. E. Parks and J. P. Tracy 1930-9-15 762 Humboldt Kneeland Bald Hills Comment
  HSC43241  Lotus corniculatus R. Sutherland 1976-8-6 7 .6876 Humboldt 229 Comment
  UC726594  Lotus denticulatus A. A. Heller 1923-7-10 13791 Humboldt between Scotia and Pepperwood; Eel River Comment
  JEPS55462  Lotus denticulatus W. L. Jepson 1902-6-19 1882 Humboldt Harris to Ft. Seward Ranch Ridge (= Mail Ridge) 1066 Comment
  UC1223400  Lotus formosissimus Joseph P. Tracy 1938-6-17 15949 Humboldt s of Cape Mendocino point; Cape Mendocino 3 Comment
  HSC49979  Lotus humistratus M. A. Baker 1979-6-1 772 Humboldt N bank of road to Snow Mt. 610 Comment
  UC1223430  Lotus micranthus Joseph P. Tracy 1936-5-30 14839 Humboldt Samoa Sand Dunes Comment
  SEINET3694376 Image available Lotus oblongifolius Joseph P. Tracy 1936-6-3 14856 Humboldt Lack Pond; Trinity River Valley, opposite mouth of Willow Creek 152 Comment
  HSC97236  Lotus purshianus var. purshianus Thomas W. Nelson, Dick Brummitt & Barbara Ertter 2004-7-4 9281 Humboldt Trinity River bar down stream from mouth of Willow Creek 152 Comment
  POM276696  Lotus unifoliolatus Lyman Benson 1928-7-11 433 Humboldt Weott Ranger Station. 61 Comment
  HSC74666  Luina hypoleuca Gail Newton 1981-8-7 2423 Humboldt Near Bug Creek Butte 1244 Comment
  JEPS82250  Luina hypoleuca Roger Raiche 1983-7-19 30536 Humboldt w side Saddle Mt. (King Mt. Trail Road); King Mt. Range, Saddle Mt. 853 Comment
  CAS-BOT-BC201190  Lupinus Charles Piper Smith 1947-7-11 47643 Humboldt Highway 101 - McKinleyville, 1.3 miles north Comment
  UC1197253  Lupinus albifrons Joseph P. Tracy 1926-5-9 7458 Humboldt Valley of South Yager Creek; Northern Coast Ranges, Valley of South Yager Creek 762 Comment
  CHSC68783  Lupinus arboreus Vernon Oswald 1997-6-5 8534 Humboldt North spit of Humboldt Bay, west side of New Navy Base Road. 1.0 mi south of Hwy. 255. 6 Comment
  UC146918  Lupinus arboreus Harley P. Chandler May, 1901 1095 Humboldt Scotia; North Coast Ranges, Scotia 60 Comment
  UCR122384  Lupinus arboreus George K. Helmkamp, E. A. Helmkamp 2001-7-8 6999 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  UCSB26618  Lupinus arboreus Havlik, Neil 1968-8-21 Humboldt Along U.S. Highway 101; west of Arcata Airport 6 Comment
  RSA246779  Lupinus arboreus var. arboreus Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-5 35166 Humboldt Samoa Dunes. 3 Comment
  HSC14800  Lupinus bicolor Eugene Andreuccetti 1964-4-26 20 Humboldt 1 mi. N of Garberville on Hwy. 101 Comment
  HSC101035  Lupinus elmeri A. Thoele, Sydney Carothers 1995-7-14 57 Humboldt Six Rivers National Forest; .6 mi. south of intersection of Forest Route 1 & Rd. 3N06, on the edge of Route 1. 1720 Comment
  JEPS82235  Lupinus lapidicola Roger Raiche 1983-7-19 30538 Humboldt King Range, Saddle Mountain, King Ridge Trail Rd. Saddle Mountain; King Range, , King Ridge Trail Rd. 853 Comment
  HSC35605  Lupinus latifolius subsp. viridifolius Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2016 Humboldt French Camp, Bald Hills. Comment
  HSC36503  Lupinus latifolius subsp. viridifolius Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1889 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  HSC102527  Lupinus latifolius var. viridifolius M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1514 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  UC170164  Lupinus littoralis Joseph P. Tracy 1912-7-7 3745 Humboldt near mouth Elk River; Northern Coast Region, region about Humboldt Bay 0 Comment
  SJSU10768  Lupinus nanus R. D. Spadoni 1965-5-1 95 Humboldt c. 20 mi SE of Bridgeville on State Rte 36 Comment
  HSC100523  Lupinus rivularis Carl C. Marshall May 1886 211 Humboldt Everywhere. Comment
  RSA167380  Lupinus rivularis Joseph P. Tracy 1934-7-21 13482 Humboldt Samoa Sand dunes Comment
  UCD109515  Lupinus rivularis P. B. Kennedy 1928-7-15 s.n. Humboldt Sea Cliffe, near Trinidad. Comment
  CAS-BOT-BC436574  Luzula cascadensis Doris Kildale 1931-5-10 10690 Humboldt Snow Camp Comment
  HSC23088  Luzula comosa D. E. Anderson 1965-5-1 3565 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC56398  Luzula comosa Griswold, Butler 1979-7-11 6968 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC56410  Luzula comosa Griswold, Butler 1979-7-11 7044 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC14125  Luzula comosa Francis Winter 1960-5-7 Humboldt E end Arbor Camp Ridge 915 Comment
  HSC74203  Luzula parviflora M. A. Baker 1980-7-19 3037 Humboldt Near Bret Hole 1814 Comment
  SDSU11830  Luzula parviflora D. F. Howe 1962-5-22 3303 Humboldt 3 miles east of Orick on Bald Mt. Road. 396 Comment
  UC184187  Luzula parviflora Joseph P. Tracy 1900-5-28 810 Humboldt at Eureka; Northern Coast Region, at Eureka 0 Comment
  CAS-BOT-BC61929  Lycopodium clavatum Gordon E. McBride 1963-4-1 s.n. Humboldt 2 miles E of Trinidad 152 Comment
  CHSC96729  Lycopodium clavatum Gordon Leppig 2004-2-3 2129 Humboldt The Pacific Lumber Company land. UTM Zone 10 0411778E, 4516248N. 300 Comment
Read comments
Jan 21 2014
  HSC97349  Lycopodium clavatum D. E. Anderson 1965-11-26 4176 Humboldt 2 mi. E. of Moonstone Beach Comment
  SEINET7838508 Image available Lycopodium clavatum Unknown Humboldt "camp 21", Hammond Lumber Compant, Trinidad 152 Comment
  HSC93250  Lysichiton americanus Gordon Leppig 1998-3-9 712 Humboldt Arcata, Alder Grove Pond, E side 12 Comment
  UC1198266  Lysichiton americanus Joseph P. Tracy 1947-5-24 17690 Humboldt Big Lagoon 9 Comment
  UC34916  Lysichiton americanus W. C. Blasdale 1896-6-4 Humboldt Eureka Comment
  RSA137264  Lysichiton americanus I. L. Wiggins 1957-6-19 14130 Humboldt East side of highway, Trinidad. Comment
  UC1222700  Lysichiton americanus Joseph P. Tracy 1950-4-20 18612 Humboldt along Van Duzen R. 1 mi. w. Dinsmore's; Van Duzen R. Comment
  RSA0023003  Lythrum Robert F. Thorne, P. C. Everett 1965-8-9 35324 Humboldt Clam Beach County Park: along highway. 3 Comment
  SEINET11261198  Lythrum hyssopifolia Rick Lundquist 1979-5-18 100 Humboldt Arcata South Quadrangle. South G Street ca 1 mile south of Samoa Boulevard.; 0 0 Comment
  UC1198466  Lythrum hyssopifolia Joseph P. Tracy 1920-8-15 5380 Humboldt Klamath River at Bluff Creek, Northern Coast Ranges Bluff Creek; Northern Coast Ranges, Klamath River, Bluff Creek 152 Comment
  UCD103045  Lythrum hyssopifolia H. E. Parks; S. T. Parks 1937-6-1 24028 Humboldt Trinidad, Spruce Cove. Comment
  HSC46151  Lythrum hyssopifolia J. P. Smith 1973-5-26 6814 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC49359  Lythrum hyssopifolia R. York 1979-5-18 302 Humboldt Along railroad tracks near the Arcata Redwood office along Hwy. 101 between Arcata and Eureka. Comment
  UC176778  Madia anomala J. P. Tracy 1903-5-22 1888 Humboldt at Alder Point; Eel River 152 Comment
  SEINET11810578  Madia elegans L. K. Henry 1971-1 s.n. Humboldt along Rt. 36, 2 mi E of Dinsmore in Six Rivers National Forest Comment
  CAS-BOT-BC344360  Madia exigua Henry M. Pollard 1948-7-21 s.n. Humboldt Near Orleans Comment
  HSC68000  Madia exigua J. P. Smith, Steve Selva 1970-6-30 4097 Humboldt Comment
  CAS-BOT-BC343022  Madia gracilis Ira L. Wiggins 1930-7-11 4679 Humboldt Near Samoa Comment
  CAS-BOT-BC343030  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
  HSC57180  Madia gracilis Griswold, Butler 1979-7-10 6211 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  HSC73478  Madia gracilis Gail Newton 1980-7-11 1333 Humboldt Near Red Mtn. 1341 Comment
  UC176421  Madia gracilis Joseph P. Tracy 1909-7-31 3029 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC495632  Madia gracilis Joseph P. Tracy 1932-7-13 10494 Humboldt at Corral Praire; Trinity Summit, Klammath Mountains 1524 Comment
  POM362198  Madia minima Thomas W. Nelson, Jane P. Nelson 1977-7-4 3608 Humboldt Along road north from Alder Spring 1555 Comment
  JEPS17994  Madia sativa George B. Rossbach 1955-6-10 550 Humboldt near Humboldt Bay (lagoon and lighthouse (between Fairhaven and end of sandy point off Eureka) Comment
  RSA25705  Mahonia nervosa C. B. Wolf 1941-7-27 11085 Humboldt North Coast Range Mts., Blue Lake to Willow Creek Rd. (U.S. #299) 2 mi. east of n. fk. of Mad River. 152 Comment
  CAS-BOT-BC508513  Maianthemum dilatatum Ira L. Wiggins 1957-6-19 14131 Humboldt Trinidad Comment
  RSA232642  Maianthemum dilatatum Larry E. DeBuhr, Gary D. Wallace 1972-5-22 606 Humboldt About 25 miles north of Arcata on the south end of Big Lagoon. Comment
  CHSC24724  Maianthemum racemosum G. Strang 1976-4-10 7 Humboldt 1.2 mi. e of Hydesville, s side of highway. 45 Comment
  HSC41355  Maianthemum racemosum subsp. amplexicaule Brad Klipfel 1974-8-2 507 Humboldt Horse Mtn. Comment
  RSA21602  Maianthemum racemosum subsp. amplexicaule Carl B. Wolf 1937-9-14 9349 Humboldt North Coast Range, Lord Ellis Road, 0.5 mile east of summit of Willow Creek Grade 762 Comment
  HSC98152  Maianthemum stellatum T. W. Beck 1963-4-13 19 Humboldt Camp Bauer, Korbel, near Mad River Comment
  CAS-BOT-BC512773  Maianthemum stellatum D. Baxter; S. Boren; C. Williams 1994-5-6 47 Humboldt West side of Titlow Road 0.35 miles south of Highway 299 853 Comment
  HSC60291  Maianthemum stellatum Phyllis Krieg 1979-4-28 Humboldt Azalea Park along trail, McKinleyville 30 Comment
  JEPS45607  Malus fusca Milo S. Baker 1923-8-5 196 Humboldt near Orick; North Coast Comment
  UC1198760  Malus fusca J. P. Tracy 1899-5-14 102 Humboldt Eureka 0 Comment
  JEPS68651  Malva parviflora Lincoln Constance 1934-6-18 900 a Humboldt n border of Dyerville Flat (near South Fork Railroad Station and Post Office, South Fork Eel River); Bull Creek Region, South Fork Eel River Comment
  CHSC46890  Marah oregana R. A. Schlising 1963-6-4 2584 Humboldt South of Orick, along Hwy 101 at Big Lagoon. Comment
  HSC23743  Marah oregana Tim Baroni 1971-7-6 122 Humboldt About 5 mi. S of Ferndale on the Mattole Rd. Comment
  POM318838  Marah oregana Patricia Wilder 1968-8-22 4419 Humboldt Coastal rain forest 7 miles S of Ferndale on Mattole Road, N of Cape Mendocino and Capetown, Mt. Range: Bear River Ridge; Drainage Area: Oil Creek to Pacific. 549 Comment
  UCSB23847  Marah oregana Keefe, Joseph 1967-7-8 Humboldt Crannell Road, 2.0 miles east of Crannell, north of Eureka 30 Comment
  HSC71442  Medicago lupulina J. P. Smith 1971-10-9 5003 Humboldt Mad River above the Fish Hatchery. Comment
  UC53675  Melica harfordii Jos. Burtt Davy 1899-6-19 5661 A Humboldt Hoopa Mt. Humboldt; Hoopa Mt. Comment
  HSC32240  Melica subulata J. O. Sawyer 1970-6-24 2280 Humboldt W of Mill Creek Lakes. 1677 Comment
  HSC71789  Melica subulata Gail Newton 1980-6-16 181 Humboldt Near Monks Camp. 1097 Comment
  HSC74687  Melica subulata Gail Newton 1981-8-7 2441 Humboldt Near Bug Creek. 1042 Comment
  UC34140  Melica subulata Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5405 Humboldt Hubbard's Station; North Coast Ranges Comment
  UC77000  Melica subulata Joseph Burtt Davy 1899-6-10 5405 a Humboldt Hubbard's Station Comment
  BLMAR755  Melica subulata Jennifer Wheeler 2004-4-30 755 Humboldt King Range, Along Telegraph Ridge 670 Comment
  POM283187  Melissa officinalis Lyman Benson 1929-7-16 91 Humboldt Weott Ranger Station. Comment
  RSA152465  Mentha aquatica Joseph P. Tracy 1943-11-14 17451 Humboldt Field s Landing, 2 miles from town 6 Comment
  SD148130  Mentha pulegium G. K. Helmkamp, E. A. Helmkamp 2001-7-8 6987 Humboldt Ca-36, along the Van Duzen R. 19.6 miles east of U. S. 101. 136 Comment
  JEPS42754  Mentzelia dispersa Joseph P. Tracy 1937-7-24 15521 Humboldt Trinity Summit, Devil's Hole 1676 Comment
  UC34932  Mentzelia laevicaulis var. laevicaulis Hy Am-Pum 1888-7-25 Humboldt Comment
  SEINET7016935  Micropus californicus Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie, about 4 miles southeast of Kneeland. Comment
  JEPS40640  Micropus californicus var. californicus Lincoln Constance 1934-6-15 891 Humboldt on summit, a few yds s of lookout Grasshopper ridge; Bull Creek, South Fork Eel River Comment
  UC164795  Microseris acuminata Joseph P. Tracy 1903-5-23 1891 Humboldt Alder Point Northern Coast Ranges 152 Comment
  UC1223200  Microseris douglasii subsp. douglasii Joseph P. Tracy 1948-6-13 18057 Humboldt 3 mi w Harris Comment
  CAS-BOT-BC322684  Microseris laciniata Lincoln Constance 1934-5-24 624 Humboldt S. slope of Lower Look Prairie, South Fork Eel River 182 Comment
  HSC40549  Microsteris gracilis Thomas W. Nelson, Jane P. Nelson 1976-5-23 2519 Humboldt SW facing slopes 1666 Comment
  UC175482  Mimulus arvensis Joseph P. Tracy 1912-7-31 3903 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Burr Valley 1066 Comment
  LA209133  Mimulus aurantiacus C. C. & S. K. Harris; 1936-6-9 sn Humboldt Above Carlotta 60 Comment
  HSC20682  Mimulus aurantiacus var. aurantiacus H. E. Parks, S. T. Parks Jun 1951 Humboldt Trinidad; along bay shore near landing Comment
  HSC89605  Mimulus aurantiacus var. aurantiacus M. Roantree 1985-5-7 36 Humboldt W side of Trinidad Head, along trail. Comment
  RSA245267  Mimulus aurantiacus var. aurantiacus C. L. Davidson 1967-7-7 20 Humboldt North Bank Rd Comment
  UC582605  Mimulus breweri Joseph P. Tracy 1932-7-10 10375 1/2 Humboldt Trinity Summit 1584 Comment
  UC1196777  Mimulus cardinalis Joseph P. Tracy 1921-9-4 5955 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC41334  Mimulus cardinalis Brad Klipfel 1974-9-7 568 Humboldt Horse Mtn.: E Fork of Willow Creek Comment
  UC147879  Mimulus dentatus J. P. Tracy 1900-5-30 833 Humboldt immediate vicinity Eureka 0 Comment
  HSC102503  Mimulus guttatus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1488 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC45656  Mimulus guttatus Diane L. Reed 1978-4-22 24 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC31742  Mimulus guttatus Donald Spalinger 1974-5-12 59 Humboldt Bald Hills Rd., 1.5 mi. E from junction with Hwy. 101 229 Comment
  RSA249331  Mimulus guttatus D. E. Anderson, Thomas W. Nelson, S Dowty 1972-6-13 5563 Humboldt Westward lower slopes of Black Lassic near Trinity County line. 1585 Comment
  UC41888  Mimulus kelloggii C. C. Marshall 1888-1 Humboldt Comment
  JEPS8153  Mimulus layneae Joseph P. Tracy 1937-6-27 15382 Humboldt w of mouth South Fork of Trinity River; Friday Ridge 1219 Comment
  HSC24378  Mimulus moschatus J. O. Sawyer 1970-6-24 2253 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  HSC100674  Mimulus nasutus Carl C. Marshall 434 Humboldt Mtns. of Humboldt, open ridges near water. Comment
  UC213145  Mimulus nasutus Joseph P. Tracy 1920-5-18 5329 Humboldt 4 mi above Dyerville; Northern Coast Ranges, South Fork Eel River 60 Comment
  JEPS10598  Mimulus pilosus W. L. Jepson 1936-8-17 17937 Humboldt near Arcata; Mad River Comment
  UC1103540  Minuartia californica Joseph P. Tracy 1920-5-20 6215 Humboldt dry slope towards Lawrence Creek; Northern Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC388624  Minuartia douglasii Doris K. Kildale 1928-5-27 5954 Humboldt Kneeland Prairie 853 Comment
  SEINET11943609  Minuartia douglasii H. P. Chandler 1901-1 1454 Humboldt Klamath River 305 Comment
  UC176959  Minuartia nuttallii subsp. gregaria Joseph P. Tracy 1912-7-31 3926 Humboldt Buck Mountain Northern Coast Ranges (near the summit) 1676 Comment
  HSC55346  Mitella diversifolia Griswold, Butler 1979-7-12 7212 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC902093  Mitella diversifolia Joseph P. Tracy 1942-6-23 17235 Humboldt along trail from Hoopa to summit (near Box Camp); Trinity Summit 1524 Comment
  JEPS49672  Mitella trifida Joseph P. Tracy 1932-7-13 10503 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC36497  Moehringia macrophylla Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1894 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  HSC74566  Moehringia macrophylla M. A. Baker 1980-5-17 1278 Humboldt Near Le Perron Peak 1066 Comment
  CAS-BOT-BC215565  Monardella odoratissima subsp. pallida Joseph P. Tracy 1930-7-16 8911 Humboldt McKay Camp, South Fork Mountain 1676 Comment
  HSC58044  Monardella odoratissima subsp. pallida Gilbert Muth 1979-8-1 11900 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  UC1239679  Monardella purpurea Joseph P. Tracy 1935-7-14 14075 1/2 Humboldt Back of White Rock Springs; North Coast Ranges, Grouse Mountain 1554 Comment
  OBI13608  Monardella sheltonii Carl B. Wolf 1937-8-13 9223 Humboldt North Coast Range, 8 mi E of Hoopa Valley on New rd towards Trinity Summit Comment
  HSC34741  Monardella villosa Thomas W. Nelson 1974-7-19 1674 Humboldt McKeown Ranch N of Dinsmore Comment
  POM283164  Monardella villosa Lyman Benson 1928-7-12 476 Humboldt Weott Ranger Station. 61 Comment
  UC1225847  Monardella villosa subsp. villosa Joseph P. Tracy 1946-7-21 17619 Humboldt Blue Slide Van Duzen River 91 Comment
  UC177170  Monardella villosa subsp. villosa Joseph P. Tracy 1912-8-1 3961 Humboldt Opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC98917  Monardella villosa subsp. villosa Cara Witte 2008-7-3 830 Humboldt Intersection of Friday Ridge Rd (6N08) and 5N39 1512 Comment
  UC673011  Montia diffusa Joseph P. Tracy 1930-8-24 9165 Humboldt Kneeland Prairie 762 Comment
  UC162353  Montia howellii Joseph P. Tracy 1909-3-21 2947 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 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
  UC162970  Montia parvifolia Joseph P. Tracy 1908-6 2708 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  HSC44168  Muhlenbergia filiformis Thomas W. Nelson, Jane P. Nelson 1977-9-3 3738 Humboldt Head of Bear Creek 1585 Comment
  CHSC162  Myosotis latifolia S. Ptomey 1911-5-1 Humboldt Comment
  SDSU19202  Myosotis latifolia Michael G. Simpson, Michael Mayer 2008-5-28 3016 Humboldt Upland above College Cove, Trinidad State Beach, along path to beach, down from south parking lot. 61 Comment
  JEPS30071  Myrica californica Joseph P. Tracy 1930-5-18 8698 Humboldt Rohnerville Golf Course Northern Coast Ranges, Rohnerville Golf Course 152 Comment
  POM232029  Myrica californica I. L. Wiggins 1930-7-11 4682 Humboldt Near Samoa Comment
  UC562532  Myriophyllum aquaticum Joseph P. Tracy 1933-7-20 12810 Humboldt Along Mad River, near Blue Lake. 15 Comment
  RSA256481  Narthecium californicum Joseph P. Tracy 1930-7-17 9003 Humboldt South Fork Mountain; in wet meadow at McKay Camp 1677 Comment
  SEINET200632  Navarretia atractyloides Joseph P. Tracy 1927-8-7 8307 Humboldt Willow Creek school house 152 Comment
  HSC99059  Navarretia capillaris Cara Witte 2007-7-8 436 Humboldt Board Camp Mountain. Trail 4E28. 1498 Comment
  HSC100597  Navarretia intertexta Carl C. Marshall Jun 1887 455 Humboldt Jewett Creek hills. Comment
  UC906686  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1947-7-5 17794 Humboldt Mud Springs , Mud Springs (Trinity Summit) 1371 Comment
  UC908640  Navarretia mellita Joseph P. Tracy 1934-7-9 13333 Humboldt 5 mi s Harris 762 Comment
  HSC34708  Navarretia squarrosa Thomas W. Nelson 1974-7-20 1696 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1198530  Navarretia squarrosa Joseph P. Tracy 1941-9-1 16998 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  JEPS70468  Navarretia squarrosa Milo S. Baker 1923-7-19 27 Humboldt Carlotta (Wilders) Carlotta Comment
  HSC99204  Nemophila heterophylla D. E. Anderson 1965-5-8 3650 Humboldt About 3 mi. N of Willow Creek along Rd. on E side of Trinity River Comment
  UC1103815  Nemophila menziesii var. atomaria Joseph P. Tracy 1926-5-15 7481 Humboldt Kneeland Prairie 762 Comment
  HSC34946  Nemophila menziesii var. atomaria Robert M. Specht 1975-4-9 120 Humboldt 2 3/4 mi. N of Trinidad at Scotty Point 30 Comment
  RSA21087  Nemophila menziesii var. menziesii Carl B. Wolf 1937-6-19 8915 Humboldt North Coast Range, 3 miles west of Little Van Duzen River at summit of grade - Dinsmores to Bridgeville. 762 Comment
  CAS-BOT-BC219405  Nemophila parviflora Doris K. Kildale 1927-3-20 2915 Humboldt Philipsville [Phillipsville], South Fork of Eel River Comment
  CAS-BOT-BC231216  Nemophila parviflora var. austiniae Marck Menke 1999-5-31 32 Humboldt Redwood National Park, near Tall Trees Grove Comment
  JEPS1924  Nemophila pedunculata Joseph P. Tracy 1925-4-5 6957 Humboldt Lawrence Creek at crossing Kneeland Road Lawrence Creek at crossing of Kneeland Road 457 Comment
  HSC6970  Noccaea fendleri subsp. glauca Lincoln Constance, R. C. Rollins 1942-5-12 2887 Humboldt Klamath River, 7 mi. NE of Weitchpec 122 Comment
  HSC37350  Notholithocarpus densiflorus var. densiflorus Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 483 Humboldt Along Lost Man Creek. 38 Comment
  HSC54589  Notholithocarpus densiflorus var. densiflorus Overton, Butler 1979-7-24 9657 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC20656  Nuttallanthus texanus L. H. Myers 1963-4-5 19 Humboldt Dunes W of Lanpheres Rd., Mad River slough area Comment
  UC154222  Oemleria cerasiformis Joseph P. Tracy 1909-6-13 2993 Humboldt near Blue Lake; Northern Coast Ranges, Mad River Valley 30 Comment
  HSC97444  Oenanthe sarmentosa Ivy Watson 2008-9-28 27 Humboldt Beach N of river mouth, along small tributary E of sand dunes 4 Comment
  UC1222755  Oenanthe sarmentosa Joseph P. Tracy 1950-9-2 19348 Humboldt 2 mi. s. of town Field's Landing (edges of foothills) 6 Comment
  CDA38484  Oenanthe sarmentosa Tario 1932-9-21 s.n. Humboldt Arcata. 0 Comment
  RSA246754  Oenanthe sarmentosa R. F. Thorne, P. Everett 1965-8-7 35179 Humboldt Big Lagoon, south end. 2 Comment
  CHSC70153  Oenothera glazioviana David K. Imper 1987-7-14 Humboldt South of Trinidad, waste area behind Matson home, just E. of US 101 near Moonstone Beach Exit. Comment
  RSA0004549  Oenothera hookeri subsp. wolfii Carl B. Wolf, E. R. Johnson 1934-12-11 6172 Humboldt Redwood Highway just south of Trinidad. 30 Comment
  CAS-BOT-BC171604  Oenothera wolfii Carl B. Wolf 1937-9-9 9307 Humboldt Coast, 2 mi. so. of Cape Mendocino 6 Comment
  HSC16488  Oenothera wolfii D. E. Anderson 1962-7-5 2246 Humboldt Luffenholtz Comment
  JEPS26030  Orobanche californica subsp. californica Joseph P. Tracy 1939-8-6 16398 Humboldt Big Lagoon. Comment
  UC494163  Orobanche californica subsp. californica H. E. and S. T. Parks 1930-9-14 782 Humboldt Shore of Big Lagoon. Comment
  HSC39391  Orobanche fasciculata D. E. Anderson, J. P. Smith 1971-7-6 - 1274 Humboldt Horse Mtn. Comment
  UC1197444  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1947-7-5 17821 Humboldt Trinity Summit. Near Box Camp. Comment
  UC906645  Orogenia fusiformis Joseph P. Tracy 1942-6-23 17252 Humboldt near top Trinity Summit (w. of Water-Dog Lakes) 1828 Comment
  RSA0083228  Orthilia secunda C. B. Wolf 1937-8-13 9264 Humboldt North Coast Range, 12 mi. E. of Hoopa Valley on New Road toward Trinity Summit. 1677 Comment
  RSA0006077  Orthocarpus castillejoides var. humboldtiensis Philip A. Munz 1925-6-20 9890 Humboldt Eureka. Comment
  HSC56000  Orthocarpus imbricatus Walter Overton, Marvin Butler 1979-7-31 11445 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  POM256939  Orthocarpus purpurascens var. latifolius Joseph P. Tracy 1938-7-12 16058 Humboldt Table Bluff. West of lighthouse. 6 Comment
  HSC71714  Osmorhiza purpurea M. A. Baker 1980-6-26 2435 Humboldt Near Sims Creek 610 Comment
  HSC16719  Oxalis articulata subsp. rubra D. E. Anderson 1961-9-22 1827 Humboldt Comment
  CHSC70834  Oxalis incarnata Vernon Oswald 1998-4-16 8918 Humboldt Samoa Dunes Recreation Area at the south tip of the North Spit of Humboldt Bay. Along the road leading into the recreation area. 6 Comment
  UC17222  Oxalis oregana Harley P. Chandler May, 1901 1160 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  HSC69850  Oxalis oregana R. Kalal 1979-5-5 42 Humboldt Fickle Hill Rd., 1.0 mi. E of 11th St. 183 Comment
  SD90203  Oxalis oregana Benjamin C. Stone 1952-6-20 113 Humboldt Holmes, on Highway 101 by Founders, Tree. Comment
  UC170010  Oxalis oregana Harley P. Chandler 1901-6-30 1188 Humboldt Eureka North Coast Ranges, Humboldt Bay 30 Comment
  UCD110982  Oxalis oregana R. Raynor 1936-3-21 s.n. Humboldt Fort Seward. Comment
  HSC6137  Packera bolanderi H. E. Parks, S. T. Parks May 1930 747 Humboldt Near Blue Slide on the middle Van Duzen River Comment
  HSC96576  Packera bolanderi var. bolanderi Gordon Leppig, Maralyn A. Renner 2005-6-7 2245 Humboldt Pacific Lumber Co. land, Redwood House Rd., Heley Creek Watershed 320 Comment
  HSC96581  Packera bolanderi var. bolanderi Gordon Leppig, Maralyn A. Renner 2005-6-7 2246 Humboldt Pacific Lumber Company land. Redwood House Rd., Hely Creek watershed 363 Comment
  UC1145145  Panicum acuminatum var. acuminatum Joseph P. Tracy 1918-7-5 5014 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley 304 Comment
  HSC10489  Panicum acuminatum var. fasciculatum J. P. Tracy 1931-5-17 9427 Humboldt Trinity River Valley, at Willow Creek. Comment
  HSC8614  Papaver rhoeas D. G. Hauger 1967-7-13 6 Humboldt Corner of W boundary of section 25 Comment
  HSC82966  Parapholis strigosa A. L. Eicher 1985-6-19 Humboldt Mouth of Mad River Slough, Humboldt Bay. 1 Comment
  RSA624797  Parapholis strigosa Gordon Leppig 1998-6-6 801 Humboldt Arcata, Arcata Marsh and Wildlife Sanctuary, Butchers Slough about 50m w of Interpretive Center 1 Comment
  UCR30860  Parentucellia viscosa A. C. Sanders 1981-8-6 2307 Humboldt Russ Park, City of Ferndale 46 Comment
  RSA46796  Pedicularis densiflora Doris K. Kildale 1927-4-17 3096 Humboldt Briceland Bridge near Garberville. Comment
  SEINET4536600 Image available Pellaea andromedifolia Joseph P. Tracy 1921-5-30 5495 Humboldt Kneeland Prairie 762 Comment
  UCR209002  Pellaea mucronata Thomas W. Nelson, James Nelson 1976-5-30 2612 Humboldt North Coast Range, McKeowan Ranch north of Dinsmore Comment
  HSC56254  Penstemon anguineus Walter Overton 1979-8-1 12387 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  HSC56314  Penstemon anguineus Walter Overton, Marvin Butler 1979-8-2 12651 Humboldt Near Grogan Hole, close to the town of Hoopa 1554 Comment
  HSC56218  Penstemon deustus G. L. Clifton, Terry Griswold 1979-8-2 12241 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC70524  Penstemon deustus Gail Newton 1980-7-15 1587 Humboldt Near Sims Mtn. 1311 Comment
  HSC70977  Penstemon deustus Gail Newton 1980-7-22 1678 Humboldt Near Devils Backbone 1554 Comment
  HSC39932  Penstemon laetus subsp. sagittatus J. O. Sawyer 1970-6-25 2293 Humboldt 1646 Comment
  HSC41280  Penstemon laetus subsp. sagittatus Brad Klipfel 1974-6-25 441 Humboldt Horse Mtn., along ridge running to the E of Horse Mtn. proper Comment
  UCR39809  Penstemon newberryi D. K. Imper 1984-6-6 s.n. Humboldt Slate Creek Butte 1372 Comment
  UC1543128  Penstemon newberryi var. berryi W. K. Parks Jul 1933 1433 Humboldt South Fork Mountain Comment
  HSC55288  Penstemon purpusii Terry Griswold, Marvin Butler 1979-7-10 6231 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  JEPS26255  Penstemon rattanii Arthur E. Connick 1925-6-1 Humboldt hills near Stone Lagoon; hills near Stone Lagoon 60 Comment
  HSC39986  Pentagramma triangularis Linda M. Barker 1976-3-11 1329 Humboldt 3 mi. W of Arcata Comment
  JEPS146  Perideridia gairdneri subsp. gairdneri W. L. Jepson 1936-8-17 17918 Humboldt hillside 2 mi s Field's Landing Comment
  UC1197324  Perideridia kelloggii Joseph P. Tracy 1921-10-2 5967 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC99093  Perideridia oregana Cara Witte 2007-7-8 447 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  UC1197118  Perideridia parishii subsp. latifolia Joseph P. Tracy 1932-7-18 10707 Humboldt Brett Hole Trinity Summit (head) 1828 Comment
  HSC89625  Petasites frigidus Brent Helm, Curtis Miller, Mark Steiger 1988-3-12 29 Humboldt Lord Ellis Summit, Hwy. 299, N facing slope adjacent to Hwy. 518 Comment
  UC1199098  Phacelia bolanderi Joseph P. Tracy 1904-7-17 2121 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC169010  Phacelia bolanderi Harley P. Chandler June 1901 1456 Humboldt between Bluff Creek and Orleans; North Coast Ranges 304 Comment
  RSA249336  Phacelia corymbosa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5621 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  UC176055  Phacelia egena Joseph P. Tracy 1913-6-25 4337 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC562571  Phacelia egena Joseph P. Tracy 1929-4-28 8550 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC58319  Phacelia mutabilis Overton, Butler 1979-8-2 12609 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC74412  Phacelia mutabilis Gail Newton 1980-8-10 2030 Humboldt Near Blake Mtn. 1707 Comment
  HSC74475  Phacelia mutabilis Gail Newton 1980-7-23 1754 Humboldt Near Packsaddle Ridge 1463 Comment
  HSC75548  Phacelia mutabilis J. O. Sawyer 1977-7-3 3014 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  HSC58024  Phacelia procera G. L. Clifton 1979-7-31 11831 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC552717  Phalaris angusta Joseph P. Tracy 1935-5-25 13856 Humboldt Fort Seward 106 Comment
  CAS-BOT-BC258866  Phalaris aquatica Joseph P. Tracy 1934-6-21 13241 Humboldt Around Humboldt Bay. Along highway across Salmon Creek flats 6 Comment
  UC526832  Phalaris aquatica Joseph P. Tracy 1927-9-18 8366 Humboldt Carlotta; Northern Coast Ranges, Carlotta 60 Comment
  UC207582  Phalaris paradoxa Joseph P. Tracy 1916-5-31 4700 Humboldt along Eel River from South Fork to Scotia Holmes Flat; Northern Coast Ranges, along Eel River 60 Comment
  UC615281  Philadelphus lewisii Beryl O. Schreiber 1932-7-12 372 Humboldt near Klamath Comment
  HSC58414  Phleum alpinum Griswold, Butler 1979-7-12 7215 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1198555  Phlox adsurgens Joseph P. Tracy 1929-7-4 8635 Humboldt French Camp Ridge 1066 Comment
  SJSU914  Phlox adsurgens J. W. Tilden 1946-6-20 1009 Humboldt Bluff Cr c. 1.5 mi above junction with Klamath R Comment
  UC615025  Phlox adsurgens Beryl O. Schreiber 1934-6-6 1144 Humboldt 5 mi e Gray's resort (road to Redding); Redwood Creek Comment
  UC906692  Phlox gracilis Joseph P. Tracy 1942-6-23 17403 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC908462  Phlox gracilis Joseph P. Tracy 1930-6-21 8791 Humboldt Larrabee Valley Northern Coast Ranges 701 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
  HSC18715  Physocarpus capitatus Paul Shields Jul 1955 Humboldt 1/2 mi. N of Weott Comment
  HSC99286  Physocarpus capitatus T. Jimerson, J. Pageau 1979-6-22 609 Humboldt Near Bee Mtn., close to the town of Orleans 655 Comment
  JEPS44665  Physocarpus capitatus Lincoln Constance 1934-5-26 656 Humboldt s end Dyerville Bridge (s bank of S. Fork of Eel River); Bull Creek Region Comment
  RSA172348  Physocarpus capitatus Robert F. Thorne 1957-9-2 19000 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  CHSC67760  Picea sitchensis Vernon H. Oswald 1997-1-29 8304 Humboldt Mad River County Park NW of Arcata, S of the mouth of Mad River. Comment
  NY34411  Picea sitchensis E. K. Balls 1953-10-11 18631 Humboldt 23.4 miles north of Petrolia on Old Coast Road, toward Ferndale 365.8 Comment
  CAS-BOT-BC78378  Pinus contorta Alice Eastwood 1923-8-14 s.n. Humboldt Samoa Comment
  UC55650  Pinus contorta subsp. contorta Harley P. Chandler May 1901 1151 Humboldt Samoa North Coast Ranges, Humboldt Bay, Samoa 3 Comment
  UC665726  Pinus contorta subsp. contorta H. E. and S. T. Parks 1938-3-1 24125 Humboldt Spruce Cove Trinidad, Spruce Cove 60 Comment
  HSC37669  Pinus jeffreyi R. Sutherland 1967-8-27 27 .876 Humboldt Elk Ridge, Bulk Collection # 107 716 Comment
Read comments
Apr 30 2013
  UCR139067  Pinus jeffreyi Gordon Leppig 1998-6-1 878 Humboldt Horse Mountain. Titlow Hill Road at Road to Horse Mountain Mine 1422 Comment
  CAS-BOT-BC78981  Pinus muricata Elmer I. Applegate 1931-3-28 6626 Humboldt Near and north of Trinidad Comment
  HSC44053  Pinus ponderosa Thomas W. Nelson, Jane P. Nelson 1977-4-23 3344 Humboldt Tributary to Blanket Creek 1463 Comment
  UC55660  Pinus ponderosa P. E. Goddard 1901-7-10 51 Humboldt ona Hupa (<currently spelled Hoopa as a place name>) Comment
  CAS-BOT-BC79028  Pinus ponderosa Ranger K. Fox 1939-8-22 13876 Humboldt Along the Everett Memorial Highway 1981 Comment
  UC180192  Piperia elegans Joseph P. Tracy 1914-8-30 4596 Humboldt Humboldt Bay Northern Coast Region Comment
  UC14948  Piperia transversa J. P. Tracy 1900-7-4 880 Humboldt opposite Eureka; Samoa, Ocean Beach Comment
  UC1196411  Piperia unalascensis Joseph P. Tracy 1913-6-26 4346 Humboldt opposite Buck Mountain ( Dinesmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC615024  Piperia unalascensis Beryl O. Schreiber 1934-6-6 1146 Humboldt 5 mi e Gray's Resort (road to Redding); Redwood Creek Comment
  HSC65967  Pityopus californicus M. A. Baker 1980-7-20 3043 Humboldt Near Bell Swamps 11 Comment
  UC1121030  Pityopus californicus R. Stahelin 1933-7-20 Humboldt Korbel Eureka Quad. (yield Plot #16, se of Riverside Plant) Comment
  UC1222229  Plagiobothrys bracteatus Joseph P. Tracy 1948-6-13 18031 Humboldt on Larrabee Creek Road around pool (halfway between Bridgeville and Blocksburg) Comment
  UC54754  Plagiobothrys nothofulvus Harley P. Chandler May, 1901 1083 Humboldt Harris North Coast Ranges 609 Comment
  UC552842  Plagiobothrys reticulatus Joseph P. Tracy 1935-6-2 13923 Humboldt Big Lagoon 3 Comment
  UC668231  Plagiobothrys reticulatus Joseph P. Tracy 1938-6-17 15963 Humboldt s of point Cape Mendocino 3 Comment
  UC1222201  Plagiobothrys scouleri Joseph P. Tracy 1950-6-29 18936 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC1222206  Plagiobothrys scouleri Joseph P. Tracy 1946-5-30 17538 Humboldt 2 mi so Bridgeville 457 Comment
  UC1222215  Plagiobothrys scouleri Joseph P. Tracy 1949-6-20 18322 Humboldt at Cameron Hill on the Kneeland Road Cameron Hill Comment
  POM161948  Plantago hirtella var. galeottiana Joseph P. Tracy 1921-7-10 5849 Humboldt Big Lagoon. 6 Comment
  HSC89977  Plantago maritima Leonel Arguello 1989-7-14 Humboldt Lanphere-Christensen Dunes Preserve 3 mi. W of Arcata. Comment
  HSC90247  Plantago maritima Jean Hanson 1980-6-22 108 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka: W side of dike on NW side of island. Comment
  UC585993  Plantago maritima var. californica Joseph P. Tracy 1927-6-26 8219 Humboldt Stone Lagoon 6 Comment
  UC154020  Plantago subnuda J. P. Tracy 1903-8-9 1937 Humboldt immediate vicinity Eureka 0 Comment
  HSC34985  Plantago subnuda Thomas W. Nelson 1974-9-12 1709 Humboldt 3 mi. S of Arcata Comment
  POM319565  Platanthera Patricia Wilder 1968-8-21 4391 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  SEINET10297967  Platanthera dilatata var. dilatata Unknown 1965-8-9 s.n. Humboldt BIG LAGOON: Elev. c. 10 ft Comment
  HSC70504  Platanthera dilatata var. leucostachys Gail Newton 1980-7-20 1612 Humboldt Near Bell Swamps 1426 Comment
  UC1196416  Platanthera sparsiflora Joseph P. Tracy 1926-6-27 7671 Humboldt House Mountain Northern Coast Ranges 1463 Comment
  RSA0106542  Platanus X hispanica Doris K. Kildale 1936-9-20 15094 Humboldt Newberg. Comment
  CAS-BOT-BC91645  Platystemon californicus Bolimannsou 1907-5-15 s.n. Humboldt Samoa. Comment
  HSC59802  Platystemon californicus Clark L. Miller 1979-5-24 3151 Humboldt Samoa Dunes off Samoa Blvd. Comment
  UC1196295  Platystemon californicus Joseph P. Tracy 1935-5-25 13871 Humboldt Fort Seward 106 Comment
  UC184734  Platystemon californicus Joseph P. Tracy 1913-6-15 4139 Humboldt opposite Buck Mountain (Dinsmore's Ranch, Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1103801  Pleuropogon refractus Joseph P. Tracy 1911-6-4 3234 Humboldt along Little River, 5 mi from the coast Little River; Northern Coast Region, Little River 121 Comment
  RSA10140  Poa compressa Joseph P. Tracy 1927-7-3 8224 Humboldt Fieldbrook 61 Comment
  HSC10702  Poa douglasii D. E. Anderson 1961-9-2 1772 Humboldt 3 mi. S of Cape Mendocino. 3 Comment
  UC1103177  Poa douglasii Joseph P. Tracy 1932-5-10 9943 Humboldt s point of the Cape Cape Mendocino Comment
  HSC10718  Poa howellii J. P. Tracy 1926-5-15 7490 Humboldt Kneeland Prairie. Comment
  HSC10722  Poa kelloggii E. W. Styskel 1963-4-20 17 Humboldt 3 mi. SE of Korbel, on Snow Camp Rd. 305 Comment
  HSC90698  Poa macrantha Gail Newton 1982-6-5 3576 Humboldt Elk River Wildlife Area, Eureka. Comment
  UCD91937  Poa pratensis A. Murphy 1951-5-18 s.n. Humboldt W. Roscoe Ranch, Upper Mattole, near Mattole River. 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
  JEPS72922  Poa pratensis subsp. pratensis Lincoln Constance 1934-6-19 918 a Humboldt near summit Grasshopper Peak (S Fork Eel River); Bull Creek Region 914 Comment
  UC187249  Poa pratensis subsp. pratensis Joseph P. Tracy 1911-6-25 3259 Humboldt Bucksport; Northern Coast Region, Humboldt Bay 0 Comment
  SEINET200570 Image available Poa trivialis J. P. Tracy 1909-6-13 2998 Humboldt On Mad River, 5 miles from its mouth, on damp banks in partial shade. 30 Comment
  UC525618  Poa trivialis Joseph P. Tracy 1926-6-12 7590 Humboldt near Orick (at Davison's Ranch on Prairie Creek); North Coast Ranges 60 Comment
  UC525622  Poa unilateralis Joseph P. Tracy 1927-6-8 8113 Humboldt Trinidad, bluffs facing ocean Trinidad; Northern Coast Region 60 Comment
  SEINET200571 Image available Poaceae Joseph P. Tracy 1926-6-12 7587 Humboldt Near Orick ,at Davison's Ranch . shady moist ground, Introduced. Comment
  RSA0022165  Pogogyne zizyphoroides Joseph P. Tracy 1946-5-30 17544 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town 61 Comment
  HSC12591  Polygonum aviculare C. Kline 1970-11-9 64 Humboldt .5 mi. N of Bayside, Bayside Rd. Comment
  CAS-BOT-BC414301  Polygonum aviculare subsp. neglectum H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans Comment
  HSC54879  Polygonum douglasii G. L. Clifton, Griswold 1979-7-25 10874 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC55078  Polygonum douglasii G. L. Clifton, Griswold 1979-7-31 11691 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UCD100221  Polygonum douglasii D. C. Hagar 1957-7-25 81 Humboldt Mill Creek cutover, 7.5 miles east-northeast of Hoopa. 1402 Comment
  UCD100265  Polygonum douglasii Joseph P. Tracy 1947-7-9 17835 Humboldt Horse Mountain. 1432 Comment
  CAS-BOT-BC414465  Polygonum douglasii Joseph P. Tracy 1932-7-11 10399 Humboldt Trinity Summit. At Corral Prairie 1584 Comment
  UC672950  Polygonum lapathifolium Joseph P. Tracy 1930-10-12 9204 Humboldt Humbolt to Fortuna (on gravel bars); Eeel River 15 Comment
  UC1198089  Polygonum parryi Joseph P. Tracy 1929-8-18 8658 Humboldt on river opposite Buck Mountain; Northern Coast Ranges, Van Duzen River, Dinsmore's Ranch 762 Comment
  JEPS50545  Polygonum persicaria W. L. Jepson 1936-8-17 17914 Humboldt 2 mi s Field's Landing (near Still's Ranch) Comment
  UC672981  Polygonum phytolaccifolium Joseph P. Tracy Jul 16 1930-Jul 19 1930 9056 Humboldt along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  HSC99496  Polygonum polygaloides subsp. kelloggii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 156 Humboldt Near North Trinity Mtn, Government Trail, near Box Camp, Six Rivers National Forest. 1460 Comment
  UC672933  Polygonum polystachyum Joseph P. Tracy 1940-10-18 16775 Humboldt Eureka 30 Comment
  HSC1101  Polypodium californicum Paul Shields Apr 1955 Humboldt 5 mi. N of Arcata Comment
  RSA273372  Polypodium glycyrrhiza Thomas W. Nelson, Jane P. Nelson 1976-2-21 2250 Humboldt Tish-Tang Campground. Comment
  UC163333  Polypodium glycyrrhiza J. P. Tracy 1909-10-7 3113 Humboldt near Redwood Creek Redwood Creek; Bald Hills 609 Comment
  CAS-BOT-BC72080  Polypodium scouleri Joseph P. Tracy 1933-6-6 12510 Humboldt Trinidad 6 Comment
  HSC77900  Polypodium scouleri L. P. Janeway, Paul Wilson 1984-5-7 763 Humboldt N Spit of Humboldt Bay, on BLM lands near the Coast Guard Station 3 Comment
  UC43119  Polypodium scouleri J. P. Tracy 1901-4-17 Humboldt Samoa; Humboldt Bay Comment
  HSC1140  Polypodium scouleri J. W. Johnson 1962-3-9 1180 Humboldt On a bank above the Hunt Lane between the gate and barn Comment
  HSC35692  Polypodium scouleri Thomas W. Nelson 1975-1-16 1746 Humboldt E of HSU campus Comment
  RSA689966  Polypodium scouleri Susan Hutchinson 1931-07 102 Humboldt Grade between Trinidad and Big Lagoon 15 Comment
  CAS-BOT-BC233074  Polypogon interruptus Joseph P. Tracy 1927-7-16 8260 Humboldt Eureka 60 Comment
  SEINET200576 Image available Polypogon interruptus Joseph P. Tracy 1927-7-16 8260 Humboldt on pasture. Comment
  UC526768  Polypogon maritimus Joseph P. Tracy 1933-7-20 12811 Humboldt along Mad River near Blue Lake; along Mad River, near Blue Lake 15 Comment
  HSC62871  Polypogon monspeliensis J. M. DiTomaso 1979-4-21 887 Humboldt Clam Beach. Comment
  UCD91265  Polypogon monspeliensis Harley P. Chandler 1901-6-1 1431 Humboldt North Coast Ranges. Klamath River. 335 Comment
  UC1440065  Polystichum californicum Danin & H. G. Baker 1960-9-2 658 a Humboldt ca. 2 mi n Dyerville (High Rock on w side of Eel River, along Ave. of the Giants) Comment
  RSA693352  Polystichum dudleyi J. Hickman 1882-1 s.n. Humboldt Near Cape Mendocino. Comment
  HSC74744  Polystichum imbricans Gail Newton 1981-8-7 2425 Humboldt Near Bug Creek Butte 1244 Comment
  CAS-BOT-BC102908  Populus trichocarpa Doris K. Kildale; L. B. Kildale 1930-4-13 9571 Humboldt Bridgeville 289 Comment
  UC1196663  Populus trichocarpa Joseph P. Tracy 1932-5-1 9842 Humboldt along Van Duzen River Alton (North Coast Ranges); , along Van Duzen River 30 Comment
  HSC36130  Potamogeton crispus Rod Blacker 1974-5-20 742005 .2 Humboldt Jolly Giant Creek, W side of Alliance Rd. Culvert Comment
  RSA84982  Potamogeton natans F. W. Peirson 1923-7-11 3640 Humboldt 20 miles north of Eureka. Comment
  HSC69532  Potamogeton natans R. Kalal 1979-5-18 76 Humboldt Shallow slough E of Clam Beach County Park 24 Comment
  JEPS42952  Potamogeton pectinatus Joseph P. Tracy 1916-6-19 4718 Humboldt Dobbyn Creek; Northern Coast Ranges 182 Comment
  UC672877  Potamogeton pectinatus Joseph P. Tracy 1933-8-22 12983 Humboldt 1 mi w of Loleta (Mouth of Eel River); Eel River 3 Comment
  POM343769  Potamogeton pusillus S. K. Harris 1938-9-12 808 Humboldt Shallow backwater of Eel River, near Fernbridge Comment
  BLMAR306  Potentilla anserina subsp. pacifica Jennifer Anthony-Wheeler 2002-7-1 306 Humboldt South Spit 6 Comment
  HSC18731  Potentilla anserina subsp. pacifica W. A. Heaton 1965-5-17 3 Humboldt 1/2 mi. N of Trinidad on trail near beach Comment
  RSA21654  Potentilla gracilis Carl B. Wolf 1937-6-14 8809 Humboldt North coast range, 1.5 miles N of Kneeland Prairie 823 Comment
  HSC48814  Potentilla gracilis var. fastigiata Brad Klipfel 1973-7-31 228 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC97913  Prosartes hookeri Cara Witte 2007-6-13 268 Humboldt Along Forest Service Rd. 5N04. Approximately 1 mile east of intersection to Grouse Mountain Lookout. 1534 Comment
  HSC100507  Prunella vulgaris Carl C. Marshall Jun 1886 249 Humboldt Everywhere. Comment
  HSC14307  Prunella vulgaris David Adams 1960-7-15 Humboldt Near Azalea Reserve State Park 30 Comment
  HSC58032  Prunella vulgaris subsp. lanceolata G. L. Clifton 1979-7-31 11857 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  JEPS62490  Prunella vulgaris var. lanceolata Joseph P. Tracy 1934-7-14 13403 Humboldt along Mad River near Blue Lake; along Mad River near Blue Lake 15 Comment
  UC577375  Prunella vulgaris var. lanceolata Joseph P. Tracy 1932-7-13 10524 Humboldt Corral Prairie Trinity Summit; , Corral Prairie 1584 Comment
  UC902030  Prunella vulgaris var. lanceolata Joseph P. Tracy 1949-8-4 18421 Humboldt Mud Springs Trinity Summit; , Mud Springs 1341 Comment
  JEPS44938  Prunus emarginata W. L. Jepson 1902-7-16 2034 Humboldt Trinity Summit 2133 Comment
  UC1198773  Prunus virginiana var. demissa Joseph P. Tracy 1933-5-14 12176 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UCD135199  Pseudognaphalium beneolens Linda M. Barker 1976-8-24 1685 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC535777  Pseudotsuga menziesii Eleanor Armstrong 1934-8-15 1186 Humboldt Richardson Grove Richardson Grove (on hillslopes) 121 Comment
  CHSC19503  Pseudotsuga menziesii var. menziesii Wendell Wood 1970-9-22 295 Humboldt McKinleyville. East end of Chateau Way. 106 Comment
  HSC79439  Pseudotsuga menziesii var. menziesii Kenneth Clark 1980-11-28 1053 Humboldt Above Point No Pass, throughout Shelter Cove 305 Comment
  JEPS48426  Pseudotsuga menziesii var. menziesii W. L. Jepson 1936-8-7 17858 Humboldt Butte Creek (upper) Bear Buttes, Butte Creek Comment
  UC169084  Psilocarphus oregonus Joseph P. Tracy 1912-7-30 3890 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC94826  Psilocarphus tenellus var. tenellus R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 828 Humboldt Humboldt Redwoods S.P., Luke Prairie, N of Mattole Rd., about 3 air mi. W of Highway 101 152 Comment
  HSC41289  Pteridium aquilinum var. pubescens Brad Klipfel 1974-7-27 483 Humboldt Horse Mtn. in draw to the N of the towers Comment
  JEPS79952  Pterostegia drymarioides Joseph P. Tracy 1933-5-20 12226 Humboldt s point of cape; Cape Mendocino 3 Comment
  UC642278  Pteryxia terebinthina var. californica Joseph P. Tracy 1929-6-3 8600 Humboldt Trinity Rivery Valley, at Willow Creek 152 Comment
  HSC17977  Pyrola aphylla D. E. Anderson 1965-5-15 3685 Humboldt About 7 mi. N of Hoopa on Bloody Camp Prairie Rd. Comment
  JEPS66558  Pyrola aphylla Lincoln Constance 1934-6-2 792 Humboldt Bull Creek Region, road to mouth of Bull Cr. and up Bull Cr., South Fork Eel River Comment
  HSC76596  Pyrola asarifolia subsp. asarifolia Teresa Prendusi 1981-7-9 201 Humboldt Near Cedar Camp. 1268 Comment
  HSC75947  Pyrola crypta Overton, Butler 1979-7-24 9719 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  CAS-BOT-BC62628  Quercus chrysolepis Doris K. Kildale 1926-12-26 2880 Humboldt Kneeland Prairie 853 Comment
  HSC41342  Quercus chrysolepis Brad Klipfel 1974-8-2 504 Humboldt Horse Mtn. Comment
  HSC98518  Quercus chrysolepis Cara Witte 2008-8-6 1013 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1486 Comment
  UC1052191  Quercus garryana J. L. Meyer 1954-10-10 36 Humboldt 3 mi nw Blocksburg 548 Comment
  HSC99030  Quercus garryana var. garryana Cara Witte 2008-7-14 898 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  OBI36116  Quercus garryana var. garryana David J. Keil 1983-7-1 17265 Humboldt Ca. 8 mi W of jctn US 101 along Bull Creek Flats rd Comment
  UCD14098  Quercus garryana var. garryana John M. Tucker 1948-9-3 1849 Humboldt California, Humboldt Co.; southwest side of Horse Mountain, ca. 2 mi. south of Berry's Summit; Comment
  CAS-BOT-BC105163  Quercus kelloggii Doris K. Kildale 1927-4-17 3093 Humboldt Briceland Bridge, 1/2 mile W of Gaberville 114 Comment
  UC54719  Quercus kelloggii Mrs. M. H. Manning Oct 1901 Humboldt Hupa Comment
  UCD46702  Quercus kelloggii W. L. Jepson 1903-6-9 2203 Humboldt Harris Ridge. 1127 Comment
  UCR32153  Quercus kelloggii David J. Keil 1983-7-1 17274 Humboldt North Coast Range, Bull Creek Flats [Mattole] Road, c. 13 mi. west of junction with US Hwy 101 Comment
  UCD165093  Quercus parvula var. shrevei Lois W. Weeth; Kerry Heise and John M. Tucker 2003-10-21 s.n. Humboldt 49.5 mi. from Garberville along Alderpoint Rd. near the intersection with Highway 36. (Coordinates and elevation estimated by label maker.) 215 Comment
  UC1565804  Quercus vacciniifolia R. Spellenberg 1990-7-10 Humboldt 8 mi wsw Salyer (at 6 mi s of Berry Summit (on Calif Hwy 299), extreme e edge of Humboldt County) 1371 Comment
  UCD14015  Quercus vacciniifolia John M. Tucker 1948-9-3 1851 Humboldt California, Humbolt Co.; Horse Mountain, at junction of roads to Grouse Mountain and to Horse Mountain Mine, Six Rivers National Forest; Comment
  UC275586  Quercus wislizeni Joseph P. Tracy 1923-10-14 6578 Humboldt North Dobbyn Creek Northern Coast Ranges 152 Comment
  JEPS55034  Ranunculus alismifolius var. alismellus W. L. Jepson July, 1902 2106 Humboldt Trinity Summit 2133 Comment
  SEINET13716691  Ranunculus aquatilis Unknown 1913-6-13 4276 Humboldt In a shallow but permanent pond. Near summit of ridge between Van Duzen and Mad Rivers, on Dinsmore's Ranch. Comment
  UC162339  Ranunculus aquatilis var. capillaceus Joseph P. Tracy 1911-7-7 3395 Humboldt three mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC1196240  Ranunculus californicus J. P. Tracy 1901-4-7 1005 Humboldt immediate vicinity of Eureka 0 Comment
  UC13971  Ranunculus flabellaris Chesnut and Drew 1888-8-1 Humboldt near Grouse Creek (pond) Comment
  UC1196269  Ranunculus muricatus J. P. Tracy 1907-6-10 2566 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC55293  Ranunculus orthorhynchus Griswold, Butler 1979-7-10 6274 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  CDA3497  Ranunculus parviflorus E. C. Whitney 1962-5-29 Humboldt Millsap property, Pepperwood. 0 Comment
  HSC71213  Ranunculus sardous Thomas W. Nelson, Doris K. Niles 1979-5-19 4696 Humboldt Tidal marsh at mouth of Eel River, Crab Park, N of County Park. Comment
  JEPS53819  Raphanus sativus Lincoln Constance 1934-5-27 707 Humboldt South Fork Eel River, s end of Dyerville Bridge South Fork Eel River; Bull Creek Region, South Fork Eel River 45 Comment
  RSA7790  Rhamnus californica Carl B. Wolf 1927-8-30 1249 Humboldt 3 miles S of Thorn3 miles S of Tom's Place Comment
  UC1197997  Rhamnus californica Joseph P. Tracy 1934-8-4 13555 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC668157  Rhamnus californica Joseph P. Tracy 1934-7-9 13358 Humboldt Dobbyn Creek 152 Comment
  UC902204  Rhamnus californica Joseph P. Tracy 1942-8-30 17304 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA390632  Rhamnus purshiana Christopher Davidson 1973-5-29 2203 Humboldt 2 miles S of Carlotta on Hwy 36 61 Comment
  SEINET2031087 Image available Rhododendron columbianum Joseph P. Tracy 1924-1 6728 Humboldt Big Lagoon 6 Comment
  CAS-BOT-BC56615  Rhododendron macrophyllum Clarence R. Quick 1959-7-24 59 -24 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  HSC7877  Rhododendron macrophyllum J. Sandborg, F. Sandborg May 1968 14 Humboldt Bluff Creek near Notice Creek, hillside 793 Comment
  SDSU3418  Rhododendron macrophyllum D. F. Howe 1963-5-26 3552 Humboldt 3.2 miles east of Orick and Bald Hill road. 457 Comment
  UC1537162  Rhododendron macrophyllum Gordon H. True Jr. 1936-5-12 474 Humboldt near Kneeland Post Office 762 Comment
  SBBG5558  Rhododendron occidentale M. J. Cody 1938-7-14 Humboldt 2 mi N of Trinidad Comment
  UC604646  Rhododendron occidentale Joseph P. Tracy 1938-6-16 15944 Humboldt Trinidad 60 Comment
  HSC76366  Rhododendron occidentale var. paludosum Teresa Prendusi 1981-7-23 346 Humboldt Near Black Mtn. 890 Comment
  CAS-BOT-BC433140  Ribes W. R. Dudley 1899-6-21 s.n. Humboldt Near Pepperwood Comment
  CAS-BOT-BC433135  Ribes Doris K. Kildale; L. B. Kildale 1930-5-12 9558 Humboldt McClellan Hill near Bridgeville 609 Comment
  HSC57641  Ribes binominatum G. L. Clifton, Griswold 1979-7-25 10805 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC492203  Ribes binominatum Joseph P. Tracy 1932-7-13 10487 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC97303  Ribes bracteosum M. Mesler 2007-3-14 738 Humboldt Along Hwy. 101 at Orick Refuse Site (E side of Hwy.) 9 Comment
  HSC99479  Ribes bracteosum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 138 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), between Six Rivers National Forest boundary and Box Camp 1433 Comment
  UC303169  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1925-3-15 6943 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  UC667077  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1939-4-27 16227 Humboldt Mouth Little River 6 Comment
  UCSB24363  Ribes divaricatum var. pubiflorum Tracy, Joseph 1939-4-27 Humboldt mouth of Little River; at edge of sand dunes 6 Comment
  RSA152409  Ribes inerme Joseph P. Tracy 1941-3-26 16813 Humboldt Lack Pond: in Trinity River Valley, opposite mouth of Willow Creek. 152 Comment
  SEINET200855 Image available Ribes inerme J. P. Tracy 1939-5-6 16281 Humboldt Lack Pond Trinity River Valley opposoite mouth of Willow Creek 152 Comment
  UC154117  Ribes laxiflorum J. P. Tracy 1909-4-18 2951 Humboldt immediate vicinity Eureka 0 Comment
  HSC103194  Ribes lobbii Jade Paget-Seekins 2010-7-5 35 Humboldt On the trail to Mill Creek Lake, up Big Hill Road, outside of Hoopa. 1655 Comment
  RSA0021132  Ribes lobbii Lincoln Constance, R. C. Rollins 1942-5-11 2864 Humboldt Near summit 8 miles east of Blue Lake. Comment
  HSC79481  Ribes menziesii Kenneth Clark 1980-3-27 559 Humboldt N fork of Dead Man's Gulch 82 Comment
  UC1198930  Ribes menziesii Joseph P. Tracy 1938-4-5 15707 Humboldt North Fork of Mad River (its eastern limit here) Mad River 304 Comment
  UCD102415  Ribes nevadense Hemphill, D. V. 1972-10-8 7033 Humboldt Near Bennett Peak and Hyampom. 1219 Comment
  UC1222373  Ribes roezlii Joseph P. Tracy 1950-7-31 19235 Humboldt near Muddy Lake; Grouse Mountain 1524 Comment
  UC1222374  Ribes roezlii Joseph P. Tracy 1950-8-4 19255 Humboldt at head Canoe Creek; Bull Creek State Park, Grasshopper Peak Comment
  RSA0024754  Ribes roezlii Doris Kildale Gillespie 1937-8-12 15258 Humboldt South Fork Mountain. Comment
  CAS-BOT-BC198870  Ribes roezlii var. amictum Joseph P. Tracy 1923-3-17 6159 Humboldt Garberville 121 Comment
  UC667061  Ribes roezlii var. cruentum Joseph P. Tracy 1934-3-11 13153 Humboldt French Camp Ridge 1066 Comment
  UC492209 Image available Ribes sanguineum Joseph P. Tracy 1927-6-12 8155 Humboldt lower slopes Horse Mountain; Northern Coast Ranges 1219 Comment
  CAS-BOT-BC211976  Ribes sanguineum Duart V. Brown 1947-3-30 20 Humboldt Near Tectah Creek, Klamath River Comment
  HSC103217  Ribes sanguineum var. glutinosum Jade Paget-Seekins 2010-3-14 3 Humboldt McKinleyville, west end of Hiller Park. 10 Comment
  HSC48065  Ribes sanguineum var. glutinosum Thomas W. Nelson 1978-4-23 3883 Humboldt N of Samoa Comment
  HSC75512  Ribes viscosissimum J. O. Sawyer, R. J. Cole 1977-7-3 3023 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  HSC100714  Rigiopappus leptocladus Carl C. Marshall Jul 1887 450 Humboldt Rock near Asbill's Ranch. Comment
  UC906678  Romanzoffia californica Joseph P. Tracy 1943-5-9 17423 Humboldt along Trinity Hwy. Willow Creek Canyon (rock bluffs near Ruby Creek) 609 Comment
  HSC59061  Romanzoffia californica Thomas Wood 1979-4-20 124 Humboldt At Trinidad Bay 2 Comment
  HSC35592  Rosa gymnocarpa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2003 Humboldt French Camp, Bald Hills. Comment
  UC162330  Rosa gymnocarpa Joseph P. Tracy 1911-7-7 3428 Humboldt Brannan Mountain Northern Coast Ranges (viz ridge n of Willow Creek, between Willow and Campbell Creeks, near summit) 1219 Comment
  UC914721  Rosa gymnocarpa Ira L. Wiggins 1930-7-22 4695 Humboldt along bank of creek between Blue Lake and Willow Creek; Redwood Creek Comment
  CAS-BOT-BC146826  Rosa nutkana Doris K. Kildale 1927-6-28 3606 Humboldt Mad River near covered bridge on Redwood Highway Comment
  CAS-BOT-BC146831  Rosa nutkana M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  HSC99308  Rosa rubiginosa C. B. Wolf 1927-8-30 1251 Humboldt 3 mi. S of Thorn along old coast road Comment
  CAS-BOT-BC133114  Rosaceae C. Hart Merriam 1921-8-19 s.n. Humboldt Big Lagoon Comment
  HSC12760  Rubus armeniacus M. J. Athey 13 Oct [year missing] 15 Humboldt Trinidad Comment
  HSC19673  Rubus armeniacus M. L. Stuart 1965-4-18 6 Humboldt Fern Lake Dam Comment
  HSC37399  Rubus leucodermis Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 511 Humboldt Along Lost Man Creek. 38 Comment
  HSC69888  Rubus leucodermis Thomas W. Nelson, Jane P. Nelson 1977-7-30 3664 Humboldt Beside State Rte. 36, 1 mi. E of Dinsmore. 732 Comment
  BLMAR233  Rubus parviflorus Jennifer Anthony-Wheeler 1996-9-26 233 Humboldt King range, growing in moist shade along bearcrk between Nad & Wai campground 548 Comment
  CAS-BOT-BC147238  Rubus parviflorus Kenneth Clark 1980-3-23 535 Humboldt On middle terrace of north fork Dead Man's Gulch 76 Comment
  HSC19656  Rubus parviflorus Lincoln Constance 1934-5-31 756 Humboldt S Fork of the Eel River, Bull Creek Flat, along Bull Creek, W boundary of park to Grasshopper Peak, N side of creek Comment
  HSC22496  Rubus parviflorus G. T. Nordstrom 1966-4-24 11 Humboldt Kneeland-Maple Creek Rd. near jct. with Korbel Rd. Comment
  UC154202  Rubus parviflorus Joseph P. Tracy 1908-6 2732 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  SEINET4976242  Rubus parviflorus Unknown 1938-8-8 15398 Humboldt Elk River, 6 miles S of Eureka Comment
  UCD170575  Rubus parviflorus var. velutinus Gordon Leppig 1998-5-7 751 Humboldt Quarry Rd., off Jacoby Creek. 97 Comment
  CAS-BOT-BC156722  Rubus spectabilis Alice Eastwood 1939-3-19 s.n. Humboldt Garden Club of America Grove Comment
  HSC19682  Rubus spectabilis D. B. Bader 1963-3-1 49 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101., E bank of S end Comment
  HSC28139  Rubus spectabilis J. D. Ackerman, A. M. Montalvo 1973-3-27 41 Humboldt 1.5 mi. N of Manila Comment
  UC203878  Rubus spectabilis Joseph P. Tracy 1918-5-12 4932 Humboldt at Eureka; Northern Coast Ranges, at Eureka 0 Comment
  CDA26338  Rubus ursinus Gordon Leppig 1998-5-11 762 Humboldt Northern California Peatlands; Big Lagoon County Park. Big Lagoon Bog. Comment
  HSC19696  Rubus ursinus Francis Winter 1960-3-26 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  HSC55306  Rubus ursinus Griswold, Butler 1979-7-11 6907 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  UC154255  Rubus ursinus J. P. Tracy 1904-7-31 2133 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  UCD17837  Rubus ursinus H. Olmo 8-10 May 1962 62- 39 Humboldt California. Humboldt County: 0.5 miles west of Dinsmore. Comment
  UCR45827  Rubus ursinus Kenneth Clark 1980-4-18 593 Humboldt North Coast, Shelter Cove. On lower alluvial terrace of Dead Man's Gulch 24 Comment
  UC1223160  Rudbeckia occidentalis Joseph P. Tracy 1948-9-12 18204 Humboldt meadow at Box Camp; Trinity Summit 1463 Comment
  SEINET5710897  Rudbeckia occidentalis Lowell E. Urbatsch 1990-1 6799 Humboldt From Calif. 99 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork; take the left fork (not leading to Denny but to Waterman Ridge and Zeigler Point) and travel 6.7 miles down this road to another fork. Take the rt. fork (away from the rd. leading to Waterman Ridge and Willow Creek). On this rd. (FD 7 NO4) travel 1.5 miles to another fork; continue on 7No4N (the left fork) for 7.4 miles. At this point, take 7NO4N, the rd to Groves Prairie. The collection site is about 50m to the right near the Groves Prairie Creek sign. The site is 17.9 miles from Hawkins Bar just beyond mile marker 9.; Groves Prairie Comment
  HSC17586  Rumex acetosella R. I. Bonn 1965-5-7 30 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  UC6931  Rumex acetosella J. Burtt Davy 1899-6-13 5484 B Humboldt near Camp Grant; North Coast Ranges Comment
  UCD100980  Rumex acetosella Linda M. Barker 1976-5-13 1483 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC17578  Rumex acetosella Allan R. Marshall 1962-5-22 30 Humboldt Back of Wildlife Building, HSU campus 30 Comment
  HSC89592  Rumex acetosella M. Roantree 1985-5-24 60 Humboldt E side of Trinidad Head Comment
  HSC17592  Rumex crispus R. J. Vernimen 1963-3-25 18 Humboldt Along railroad tracks at Clam Beach lagoons Comment
  UC1225779  Rumex occidentalis Joseph P. Tracy 1948-9-12 18208 Humboldt Box Camp Trinity Summit 1463 Comment
  CAS-BOT-BC109293  Rumex paucifolius R. K. Gierisch; D. H. Esplin 1969-7-1 3538 Humboldt Six Rivers. Grouse Mountain. 1584 Comment
  JEPS385  Ruppia maritima Joseph P. Tracy 1938-7-15 16079 Humboldt Mouth of Eel River 3 Comment
  HSC4508  Salicornia depressa P. W. Shields 1955-9-15 Humboldt 4 mi. NW of Arcata. Comment
  HSC89899  Salicornia depressa Leonel Arguello 1989-9-9 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata Comment
  UC673034  Salicornia virginica Joseph P. Tracy 1933-8-22 12987 Humboldt Mouth of Eel River 3 Comment
  CAS-BOT-BC129891  Salix bonplandiana M. S. Jussel 1932-5-1 s.n. Humboldt Sylvandale Comment
  CAS-BOT-BC103815  Salix exigua Harold E. Parks 1931-5-14 0961 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  CAS-BOT-BC103820  Salix exigua Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01237 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  RSA44504  Salix exigua H. M. Pollard 1947-8-21 s.n. Humboldt Klamath River [??] Boyle Creek. Orleans Region. Comment
  SD989  Salix exigua var. hindsiana Harold E. Parks, Joseph P. Tracey 1931-5-17 971 Humboldt Mouth of Willow Creek at Trinity River 149 Comment
  CAS-BOT-BC104101  Salix hindsiana Harold E. Parks; Joseph P. Tracy 1931-5-17 0968 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC106852  Salix hookeriana Harold E. Parks 1931-5-12 0952 Humboldt Samoa, Humboldt Bay Comment
  CAS-BOT-BC107676  Salix hookeriana John Johnson 1962-4-1 1187 Humboldt Lamphere Ranch, about 4 miles west of Arcata. Sand dune formation along beach Comment
  CAS-BOT-BC107718  Salix hookeriana Doris K. Kildale 1927-5-14 3190 Humboldt Big Lagoon, coastal terrace. Comment
  CAS-BOT-BC107747  Salix hookeriana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 1226 Humboldt In pine barrens near the coast, 1 mile north of Samoa Comment
  CAS-BOT-BC107749  Salix hookeriana Harold E. Parks 1931-5-12 953 Humboldt Samoa, Humboldt Bay Comment
  CHSC96715  Salix hookeriana Gordon Leppig 2005-4-8 2211 Humboldt Humboldt Bay Dunes and Wetlands. Eureka, swamp at west end of W. Hawthorne St. NAD 27 UTM Zone 10, 4515862 N, 400315 E. 3 Comment
  HSC19960  Salix hookeriana H. E. Parks, J. P. Tracy 1931-3-26 905 Humboldt Along lower Van Duzen River Comment
  HSC19963  Salix hookeriana H. E. Parks, S. T. Parks 1932-4-15 1103 Humboldt Near mouth of the Little River Comment
  HSC19969  Salix hookeriana H. E. Parks Sep 1931 1057 Humboldt Trinidad 76 Comment
  HSC20065  Salix hookeriana J. W. Johnson 1962-4-29 1296 Humboldt Hollow 10, W.M. Lanphere Farm, Samoa Peninsula, Arcata Comment
  JEPS12928  Salix hookeriana Joseph P. Tracy 1931-4-4 9330 Humboldt near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  LA208754  Salix hookeriana Harold E. Parks; 1931-5-28 1000 Humboldt Little River Lagoon, Trinidad; at sea level Comment
  RSA178540  Salix hookeriana Joseph P. Tracy 1950-9-10 19366 Humboldt On foothills of Cape Ridge. 0.5 mile S of town. 1 mile inland from Cape Mendocino. 61 Comment
  RSA475258  Salix hookeriana Lyman D. Benson 1928-7-5 370 Humboldt Garberville. Seward N Coast mtn range. S Fork Eel River. 244 Comment
  UC275504  Salix hookeriana Joseph P. Tracy 1925-11-8 7312 Humboldt Fieldbrook Northern Coast Ranges, Fieldbrook 60 Comment
  UC275525  Salix hookeriana Joseph P. Tracy 1924-9-21 6884 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  UC303031  Salix hookeriana Joseph P. Tracy 1926-3-14 7389 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC469124  Salix hookeriana Joseph P. Tracy 1929-4-7 8531 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC492336  Salix hookeriana Harold E. and Susan T. Parks 1932-4-10 1102 Humboldt Little River Lagoon Trinidad Comment
  UC512106  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1207 Humboldt 4 1/2 mi s Trinidad; Little River Lagoon Comment
  CDA39525  Salix hookeriana Patty Adams Jun 1985 s.n. Humboldt Dry Lagoon State Park. 0 Comment
  POM219559  Salix hookeriana var. tomentosa H. E. Parks 1931-3-26 905 Humboldt Alton on Van Duzen River. 15 Comment
  POM219697  Salix hookeriana var. tomentosa H. E. Parks 1931-5-12 956 Humboldt Samoa. Humboldt Bay. Near sea level. 0 Comment
  UC481824  Salix laevigata Mrs. H. P. Bracelin 1931-5-1 272 Humboldt between Miranda and Meyers (Sylvandale Station, Redwood Hwy., S. Fork Eel R.); Sylvandale Station, Redwood Hwy., S. Fork Eel R. Comment
  RSA0030805  Salix lasiandra H. E. Parks, Joseph P. Tracy 1931-5-17 0966 Humboldt Willow Creek at Trinity River. 150 Comment
  UC1225918  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1947-8-24 17896 Humboldt meadow at Box Camp Box Camp; Trinity Summit 1463 Comment
  CAS-BOT-BC128196  Salix lasiandra var. lasiandra Doris K. Kildale 1926-3-7 1528 Humboldt Stephen's Grove, river bar - South Fork of Eel River 60 Comment
  CAS-BOT-BC107604  Salix lasiolepis Joseph P. Tracy; Harold E. Parks; Carleton R. Ball 1932-5-12 1236 Humboldt Gravelly floodplain of the Van Duzen River at Blue Slide 91 Comment
  HSC96360  Salix lasiolepis Gordon Leppig 1999-7-9 1188 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  HSC96369  Salix lasiolepis Gordon Leppig 1999-4-15 1119 Humboldt Big Lagoon County Park, Big Lagoon Bog, W fen edge 3 Comment
  JEPS12943  Salix lasiolepis Joseph P. Tracy 1930-6-15 8737 Humboldt near Bosworth's Larrabee Creek; Northern Coast Ranges 457 Comment
  POM161044  Salix lasiolepis Joseph P. Tracy 1926-8-12 7758 Humboldt Redwood Creek. At Berry's. Comment
  SBBG57890  Salix lasiolepis C. R. Ball, H. E. Parks, J. P. Tracey 1932-5-17 1324 Humboldt W slope of Berry's Mtn, E of Redwood Crk 762 Comment
  UC1196617  Salix lasiolepis Joseph P. Tracy 1935-4-14 13780 Humboldt Miranda, along South Fork of Eel River 121 Comment
  UC1222296  Salix lasiolepis Joseph P. Tracy 1950-4-20 18623 Humboldt gravel bar in river 10 mi se Dinsmore's (about 4 mi se of Kuntz); Van Duzen River Comment
  UC437300  Salix lasiolepis J. P. Tracy 1904-3-6 2003 Humboldt Immediate vicinity of Eureka 0 Comment
  UC490548  Salix lasiolepis Joseph P. Tracy 1932-4-24 9805 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC506378  Salix lasiolepis Joseph P. Tracy 1932-10-2 10858 Humboldt near Bair's; Northern Coast Ranges, Redwood Creek 213 Comment
  UC506386  Salix lasiolepis Joseph P. Tracy 1932-6-19 10248 Humboldt Buck Mountain Northern Coast Ranges (nw slope, lower foothills) 762 Comment
  UC506392  Salix lasiolepis Joseph P. Tracy 1932-6-4 10126 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC506400  Salix lasiolepis Joseph P. Tracy 1932-8-21 10358 Humboldt Three Cabins Northern Coast Ranges, Chaparral Mountain (lower western foothills of mt.) 457 Comment
  UC512113  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1203 Humboldt 4 1/2 mi. s. Trinidad (Little R. Lagoon); Little R. Lagoon Comment
  CAS-BOT-BC107288  Salix lasiolepis var. bigelovii Joseph P. Tracy 1933-4-9 10968 Humboldt along Van Duzen R. 228 Comment
  POM220140  Salix lasiolepis var. bigelovii H. E. Parks, Joseph P. Tracy 1931-5-17 976 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  CAS-BOT-BC125605  Salix melanopsis Harold E. Parks 1931-5-14 0965 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  CAS-BOT-BC125633  Salix melanopsis Harold E. Parks 1931-10-15 01077 Humboldt Bishop Pine Lodge, Trinidad 75 Comment
  HSC20027  Salix melanopsis H. E. Parks 1931-10-15 1077 Humboldt Bishop Pine Lodge, Trinidad 75 Comment
  HSC20064  Salix melanopsis H. E. Parks, J. P. Tracy 1931-5-17 967 Humboldt Humboldt/Trinity Cos., below Willow Creek 152 Comment
  JEPS12953  Salix melanopsis Joseph P. Tracy 1932-5-10 9961 Humboldt Mattole River near Petrolia; Northern Coast Region 15 Comment
  POM220111  Salix melanopsis H. E. Parks, Joseph P. Tracy 1931-5-17 974 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  UC481825  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt 6 km. s. Alton (e. of Redwood Hwy.) 20 Comment
  UC519361  Salix melanopsis Joseph P. Tracy 1933-6-7 12513 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC519377  Salix melanopsis Joseph P. Tracy 1933-5-20 12258 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC54764  Salix melanopsis P. E. Goddard 1901-7 16 Humboldt Hupa Comment
  RSA0038342  Salix melanopsis var. tenerrima Harold E. Parks, Joseph P. Tracy 1931-5-17 0972 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  SEINET770618 Image available Salix parksiana J. P. Parks 1931-5-14 962 Humboldt Van duzen River between Alton and carlotta, Humboldt County 15 Comment
  RSA0005850  Salix parksiana H. E. Parks 1931-5-14 962 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  HSC55742  Salix scouleriana G. L. Clifton, Griswold 1979-7-26 10252 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  RSA47087  Salix scouleriana Doris K. Kildale 1926-9-5 2637 Humboldt On trail between Goat Camp and Red Peak, Lassack's Peaks 1677 Comment
  SBBG57977  Salix scouleriana H. E. Parks 1931-5-12 955 a Humboldt Samoa, Humboldt Bay Comment
  UC1196710  Salix scouleriana Joseph P. Tracy 1936-2-2 14768 Humboldt vicinity of Carlotta Carlotta 30 Comment
  UC490508  Salix scouleriana Joseph P. Tracy 1932-9-16 10795 Humboldt near mouth of Mad River; Northern Coast Ranges 30 Comment
  UC490528  Salix scouleriana Joseph P. Tracy 1932-7-17 10694 Humboldt head of Devil's Hole; Klamath Mts., Trinity Summit 1828 Comment
  CAS-BOT-BC128998  Salix sitchensis Harold E. Parks 1931-3-24 910 Humboldt Trinidad 90 Comment
  HSC20106  Salix sitchensis H. E. Parks 1931-3-24 913 Humboldt Vicinity of Fortuna Comment
  HSC38135  Salix sitchensis Thomas W. Nelson, James Nelson 1976-3-23 3280 Humboldt Van Duzen River at Grizzley Creek Comment
  HSC79493  Salix sitchensis Kenneth Clark 1980-3-24 545 Humboldt Alluvial terrace of Dead Man's Gulch 15 Comment
  UC146204  Salix sitchensis Joseph P. Tracy 1904-3-6 2001 Humboldt immediate vicinity of Eureka 0 Comment
  UC1600860  Salix sitchensis Joseph P. Tracy 1933-10-8 13086 Humboldt Van Duzen R. Blue Slide; Northern Coast Ranges, , Blue Slide 91 Comment
  UC490501  Salix sitchensis Joseph P. Tracy 1932-10-2 10857 Humboldt Redwood Creek near Bair's; Northern Coast Ranges, Redwood Creek 213 Comment
  UC537983  Salix sitchensis Joseph P. Tracy 1934-9-22 13671 Humboldt mouth of Mad R.; North Coast Ranges, Mad R. 9 Comment
  JEPS12742  Sambucus mexicana Joseph P. Tracy 1930-7-19 9088 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC34273  Sambucus nigra subsp. caerulea K. Irwin 1975-8-13 Humboldt N Trinity Mtn. Comment
  HSC99436  Sambucus nigra subsp. caerulea K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 85 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC59500  Sambucus racemosa var. racemosa M. A. Ericksen 1979-4-6 202 Humboldt 880 Central Ave. McKinleyville. 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
  POM256866  Sanicula arctopoides Joseph P. Tracy 1936-5-30 14838 Humboldt Near Samoa on Humboldt Bay. 6 Comment
  UC642286  Sanicula arctopoides Joseph P. Tracy 1927-6-8 8110 Humboldt Trinidad 3 Comment
  HSC91933  Sanicula arctopoides E. Mackey 1987-6-11 Humboldt Patrick's Point State Park, Palmer's Point trail to beach Comment
  JEPS184  Sanicula arctopoides Joseph P. Tracy 1936-5-30 14838 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC183563  Sanicula bipinnatifida Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3606 Humboldt near Hydesville (Northern Coast Region); Northern Coast Region 30 Comment
  UC642301  Sanicula bipinnatifida Joseph P. Tracy 1938-7-4 15985 Humboldt Valley of South Yager Creek 762 Comment
  RSA254743  Sanicula crassicaulis Thomas W. Nelson, James Nelson 1973-5-28 943 Humboldt McKeown Ranch north of Dinsmore. Comment
  RSA183595  Sanicula crassicaulis C. F. Zeillemaker 1964-4-7 64 -A-3 Humboldt Three miles southwest of Samoa on Samoa Peninsula at US Coast Guard Station. 3 Comment
  UC1022533  Sanicula crassicaulis C. Ritchie Bell 1952-5-3 1326 Humboldt near Cobbs (along Mad River); Mad River Comment
  HSC55755  Sanicula graveolens G. L. Clifton, Terry Griswold 1979-7-26 10289 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC74223  Sanicula graveolens M. A. Baker 1980-7-19 3016 Humboldt Near Bret Hole. 1814 Comment
  RSA167239  Sanicula tracyi Joseph P. Tracy 1950-7-6 19022 Humboldt Sproston s Place, 3 miles south of Burr Valley 1067 Comment
  HSC74373  Sanicula tuberosa M. A. Baker 1980-6-28 2501 Humboldt Near Mad River Buttes 1445 Comment
  UC1197079  Sanicula tuberosa Joseph P. Tracy 1922-5-14 6045 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC195430  Saponaria officinalis Frank C. Gregory 1915-8-30 Humboldt Klamath River near Ah Pah Creek; Northern Coast Ranges, Klamath River at Ah Pah Creek 30 Comment
  HSC31438  Sarcodes sanguinea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5556 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  UC577374  Satureja douglasii Joseph P. Tracy 1923-6-20 6315 Humboldt White Thorn Valley 304 Comment
  UC1198880  Saxifraga californica Joseph P. Tracy 1927-4-10 7889 Humboldt Redwood Creek at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  HSC82129  Saxifragopsis fragarioides D. K. Imper 1985-6-19 Humboldt Above and Below FS road 10N01, just NW of Whitey's Peak 1372 Comment
  RSA0101648  Sceptridium multifidum Carl B. Wolf 1937-8-10 9090 Humboldt Big Lagoon, edge of bog at state park. 6 Comment
  HSC58384  Scirpus congdonii Terry Griswold 1979-7-25 10920 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1784 Comment
  CDA39134  Scirpus koilolepis Gordon Leppig 1999-10-3 1257 Humboldt Big Lagoon County Park, Big Lagoon Bog. Comment
  HSC102057  Scirpus microcarpus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 962 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  SEINET3914801  Scirpus microcarpus Thomas W. Nelson, James Nelson 1976-7-28 3048 Humboldt Flora of the Lassics. At Alder Springs along 2S08.; 0 1554 Comment
  CAS-BOT-BC110924  Scirpus microcarpus Carl B. Wolf 1937-9-11 9324 Humboldt Redwood Highway, 3 mi. No. of Orick at Davidson's Ranch on Prairie Creek. 60 Comment
  HSC7462  Scirpus microcarpus J. R. Kahl 1962-5-4 27 Humboldt 3 mi. S of Trinidad along old Hwy. 101 Comment
  HSC7464  Scirpus microcarpus Paul Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  RSA18606  Scirpus microcarpus Carl B. Wolf 1937-9-11 9324 Humboldt Redwood Highway, 3 miles N of Orick at Davison s Ranch on Prairie Creek. 61 Comment
  SEINET5161340  Scoliopus bigelovii Unknown 1998-3-10 s.n. Humboldt southern Humbolt County Comment
  SEINET12050517  Scoliopus bigelovii F. H. Utech 1988-1 88 -019 Humboldt along US 101 near junction of Durphy Creek & South Fork Eel River 60 Comment
  UCD18586  Scoliopus bigelovii Roman Gankin 1956-3-17 104 Humboldt off US Hwy 101, south boundary of Jenson Grove, near creek. Comment
  HSC100444  Scorzonella procera Carl C. Marshall Jul 1886 263 Humboldt Bald Hills. Comment
  UC1011940  Scrophularia californica F. W. Pennell and J. P. Tracy 1940-7-6 26081 b Humboldt w Lolita (Table Bluff) 1 Comment
  UC582592  Scrophularia californica Joseph P. Tracy 1933-8-22 12980 Humboldt Eureka 6 Comment
  HSC58326  Scutellaria antirrhinoides Overton, Butler 1979-8-2 12623 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC154009  Scutellaria antirrhinoides Joseph P. Tracy 1909-7-31 3031 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UCD125670  Scutellaria antirrhinoides K. Esau 1934-5-7 s.n. Humboldt Above Fort Seward. 457 Comment
  HSC79258  Sedum laxum subsp. flavidum D. K. Imper 1983-7-13 Humboldt Six Rivers National Forest, Sims Mtn. next to FS 4N01, 1 1/4 mi. S of Sugarloaf Mtn. 1280 Comment
  HSC79342  Sedum laxum subsp. flavidum D. K. Imper 1983-6-15 Humboldt Along Hwy. 299 S of Hwy, adjacent to swimming hole Comment
  HSC65971  Sedum laxum subsp. heckneri Gail Newton 1980-7-24 1783 Humboldt Near Somes Mtn. 1615 Comment
  HSC6478  Sedum radiatum W. K. Parks Jul 1933 Humboldt S Fork Mtn. Comment
  SEINET203030 Image available Selaginella rupestris J. P. Tracy 1920-10-24 5407 Humboldt Around Humboldt Bay near Korbel 61 Comment
  CAS-BOT-BC364022  Senecio integerrimus var. major Doris K. Kildale 1928-5-19 5173 Humboldt Chalk Mountain Comment
  CAS-BOT-BC364013  Senecio integerrimus var. major Thomas W. Nelson; Jane P. Nelson 1980-5-25 5250 Humboldt North Coast Ranges. Along road from Dinsmore to Anderson Crossing. McKeown Ranch road ca 100 m north of junction of road to Hindley Cabin 822 Comment
  UC1223149  Senecio integerrimus var. major Joseph P. Tracy 1946-5-19 17537 Humboldt near Ashland Butte; Kneeland Prairie 762 Comment
  HSC76417  Senecio jacobaea D. K. Imper 1981-7-21 888 Humboldt Near Table Bluff 38 Comment
  HSC27280  Senecio jacobaea H. Hilton 1973-9-20 Humboldt Near the Orick Dump Comment
  UC581694  Senecio minimus Joseph P. Tracy 1936-7-26 15052 Humboldt w of Redwood Creek; Trinity Highway, Bald Mt. Ridge 670 Comment
  SEINET9305918  Senecio serra Unknown 1948-9-3 1857 Humboldt Near jct of Friday Ridge Rd and Horse Mtn-Grouse Mtn Rd. Growing on the borders of a pond near Clear Lake. Herbarium, Carnegie Museum (CM), Pittsburgh, PA. Comment
  UC1199238  Senecio sylvaticus Harold E. Parks and Joseph P. Tracy 1934-6-27 11034 Humboldt Redwood Creek at Berry's; Redwood Creek at Berry's 274 Comment
  HSC34282  Senecio triangularis K. Irwin 1975-8-16 Humboldt Grogans Hole area. Comment
  UC180178  Senecio triangularis Joseph P. Tracy 1914-7-4 4539 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges, High Prairie on Bald Mountain 1066 Comment
  BLMAR59  Senecio vulgaris Jennifer Anthony-Wheeler 1994-3-17 59 Humboldt Samoa/manilla dunes, growing alongside OHV trail on S.end of BLM prop 12 Comment
  CAS-BOT-BC85837  Sequoia sempervirens Doris K. Kildale 1926-8-23 2557 Humboldt North Fork of Eel River Comment
  SD34  Sequoia sempervirens Charlotte M. Wilder 1932-12-24 Humboldt Carlotta Comment
  UC526852  Setaria viridis Joseph P. Tracy 1934-8-18 13589 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  UC602550  Sherardia arvensis Joseph P. Tracy 1933-6-13 12560 Humboldt Bair's; Redwood Creek 609 Comment
  HSC102927  Sidalcea M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 885 Humboldt Patterson Meadows 1555 Comment
  JEPS50089  Sidalcea diploscypha Lincoln Constance 1934-5-23 613 Humboldt sw slope Upper end Look Prairie Bull Creek Region, South Fork Eel River, Look Prairie (South Fork Eel River, Bull Creek Region) 365 Comment
  CAS-BOT-BC205565  Sidalcea malachroides Volney Rattan 1883-6-30 s.n. Humboldt Mad River Comment
  HSC42305  Sidalcea malachroides Tom Duebendorfer 1977-5-15 48 Humboldt 0.52 mi. after junction of Snow Creek Rd. and Maple Creek Rd. along Maple Creek Rd. 518 Comment
  SBBG4711  Sidalcea malachroides H. and M. Dearing 1939-5-24 3428 Humboldt Cape Mendocino 121 Comment
Read comments
Oct 29 2014
  UC153948  Sidalcea malachroides J. P. Tracy 1910-5-22 3141 Humboldt vicinity Eureka; vicinity of Eureka 0 Comment
  HSC62693  Sidalcea malviflora Michelle Stevens 1979-5-25 139 Humboldt Junction of Hwy. 96 and the GO Rd. 640 Comment
  POM282897  Sidalcea malviflora subsp. malviflora Lyman Benson 1929-6-18 1733 Humboldt North of Arcata Comment
  BLMAR281  Sidalcea malviflora subsp. patula Jennifer Anthony-Wheeler 1999-5-28 281 Humboldt King range, growing along windy pt rd about 1/2 way to the spring exclosure 140 Comment
  HSC93949  Sidalcea malviflora subsp. patula D. K. Imper, Clare Golec 1999-6-2 Humboldt Junction of Riverside Rd. and Hwy. 36 91 Comment
  HSC58187  Sidalcea oregana subsp. spicata G. L. Clifton, Griswold 1979-8-2 12277 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC103771  Silene bolanderi M. R. Mesler 2014-6-4 1633 Humboldt Burr Valley Road near Dinsmore 1014 Comment
  UC161014  Silene californica Joseph P. Tracy 1911-7-9 3457 Humboldt along Willow Creek (tributary of Trinity River, near its mouth); Northern Coast Ranges, along Willow Creek 182 Comment
  UCR123953  Silene californica George K. Helmkamp, E. A. Helmkamp 2001-7-8 6965 Humboldt North coast hills., Calif. Hwy 36, 2.2 mi west of Dinsmore 732 Comment
  POM286441  Silene californica Lyman Benson 1928-7-10 427 Humboldt Fortuna; River: Eel, mouth. 30 Comment
  RSA47132  Silene californica Doris K. Kildale 1927-8-16 1139 Humboldt Trinity Summit Trail beween Patterson s and Horse Linto Creek. 213 Comment
  RSA47144  Silene californica Doris K. Kildale 1925-7-2 900 Humboldt Table Bluff - bluff on coast. Comment
  HSC4187  Silene gallica R. J. Vernimen 1963-3-21 23 Humboldt Clam Beach Lagoons, 10 mi. N of Arctata Comment
  HSC68009  Silene gallica J. P. Smith 1970-6-7 3804 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  JEPS50880  Silene grayi Joseph P. Tracy 1926-6-20 7628 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  CAS-BOT-BC181246  Silene hookeri subsp. bolanderi Alice Eastwood; John Thomas Howell 1937-6-23 4799 Humboldt Little Van Duzen River Comment
  CAS-BOT-BC389048  Silene laciniata subsp. californica Volney Rattan 1878-1-1 s.n. Humboldt Unspecified 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
  CAS-BOT-BC389070  Silene laciniata subsp. californica Thomas W. Nelson; Jane P. Nelson 1980-7-13 6059 Humboldt North Coast Ranges. Along the road from Dinsmore to Anderson Ford-McKeown Ranch road 762 Comment
  HSC67883  Silybum marianum J. P. Smith 1973-5-26 6872 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  SEINET6883434  Sisyrinchium bellum Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, near serpentine outcrops, about 4 miles sou theast of Kneeland. Comment
  RSA699282  Sisyrinchium californicum J. R. Bruff 1930-08 s.n. Humboldt North of Trinidad Comment
  UC666970  Smilacina stellata Joseph P. Tracy 1939-4-25 16222 Humboldt Bull Creek; mouth 60 Comment
  JEPS12058  Solanum americanum W. L. Jepson 1936-8-12 17889 Humboldt South Fork Eel River; Philipsville, South Fork Eel River Comment
  CAS-BOT-BC236441  Solanum aviculare Doris K. Kildale 1925-9-28 1357 Humboldt Samoa Peninsula Comment
  HSC89586  Solanum aviculare M. Roantree 1985-5-24 57 Humboldt W side of Trinidad Head, along trail Comment
  HSC89504  Solanum furcatum M. Roantree 1985-5-30 72 Humboldt E side of Trinidad Head along dirt road Comment
  JEPS12167  Solanum umbelliferum Joseph P. Tracy 1937-5-30 15316 Humboldt Bridgeville 198 Comment
  CAS-BOT-BC157484  Solanum umbelliferum H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. Trail 1524 Comment
  CAS-BOT-BC365444  Solidago elongata L. R. Abrams 1927-9-1 12064 Humboldt Stone Lagoon Comment
  HSC58346  Solidago elongata Overton, Butler 1979-8-2 12674 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC365672  Solidago spathulata Doris K. Kildale 1926-4-9 1745 Humboldt Samoa Peninsula Comment
  UCR122383  Solidago spathulata var. spathulata George K. Helmkamp, E. A. Helmkamp 2001-7-8 7000 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  UC1223173  Soliva sessilis Joseph P. Tracy 1942-6-15 17157 Humboldt on the road to Harris 1/2 mi ne Garberville 304 Comment
  HSC79453  Sonchus asper Kenneth Clark 1980-4-18 605 Humboldt Along access trail to Deadman's Gulch. 46 Comment
  CAS-BOT-BC158898  Sorbus scopulina Doris K. Kildale 1925-8-16 1170 Humboldt Trinity Summit 1828 Comment
  UC302160  Sparganium emersum var. emersum Joseph P. Tracy 1926-8-22 7771 Humboldt pond between Little Van Duzen River and Dinsmore's; Northern Coast Ranges 670 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
  HSC24773  Spergularia bocconi Barbara Kelly 1971-5-27 4 Humboldt Eureka sidewalk next to Penny's, E St. Comment
  CAS-BOT-BC149616  Spiraea douglasii H. E. McMinn 1922-7-1 289 Humboldt North of Scotia Comment
  JEPS45015  Spiraea douglasii Milo S. Baker 1923-7-14 5 Humboldt highway between Scotia and Fortuna Comment
  UC14209  Spiraea douglasii Chesnut and Drew 1888-8-10 Humboldt Arcata Comment
  UC1196405  Spiranthes porrifolia Joseph P. Tracy 1942-6-15 17154 Humboldt Garberville 152 Comment
  RSA249515  Spiranthes romanzoffiana Robert F. Thorne, Percy C. Everett 1965-8-9 35294 Humboldt Big Lagoon. 3 Comment
  UC275578  Spiranthes romanzoffiana Joseph P. Tracy with H. E. Parks 1924-8-3 6767 Humboldt Big Lagoon Northern Coast Region 6 Comment
  RSA134646  Stachys ajugoides Harlan Lewis 1940-7-3 s.n. Humboldt Humboldt County: Little River Beach State Park Comment
  CHSC802  Stachys ajugoides var. rigida 1929-5-6 Humboldt Comment
  CHSC804  Stachys ajugoides var. rigida 1941-5-30 Humboldt Comment
  CHSC84693  Stachys ajugoides var. rigida L. P. Janeway 2003-7-26 7922 Humboldt High North Coast Ranges. South side (above) Road 5N04, 0.5 km northeast of the top of Grouse Mountain. 1554 Comment
  JEPS63029  Stachys ajugoides var. rigida Joseph P. Tracy 1937-6-20 15342 Humboldt Bear River 152 Comment
  UC577328  Stachys ajugoides var. rigida Joseph P. Tracy 1937-6-20 15342 Humboldt Bear River 152 Comment
  UC668215  Stachys ajugoides var. rigida Joseph P. Tracy 1938-7-4 15987 A Humboldt Valley of South Yager Creek 762 Comment
  UCLA71166  Stachys ajugoides var. rigida C. Epling, Wm. Robison 1935-7-22 Humboldt Patrick's Point Comment
  JEPS63031  Stachys ajugoides var. rigida Frank W. Peirson 1926-7-12 7034 Humboldt near bridge over Redwood Creek (Orick) Comment
  UC1239725  Stachys ajugoides var. rigida Joseph P. Tracy 1943-7-11 17434 Humboldt Park's garden Trinidad 3 Comment
  UCLA71161  Stachys ajugoides var. rigida C. Epling Aug 1933 Humboldt near Humboldt Co. line (Weaverville-Arcata Road) Comment
  UCLA71491  Stachys arvensis L. W. Smith 1934-11-14 Humboldt Arcata Comment
  HSC100512  Stachys bullata Carl C. Marshall May 1885 77 Humboldt Thickets, roadsides, etc. Comment
  SD93025  Stachys rigida var. quercetorum W. Bertsch 1953-7-30 218 Humboldt Highway 101 at Duncan Grove. 91 Comment
  UC668079  Stellaria borealis subsp. sitchana Joseph P. Tracy 1937-7-17 15443 Humboldt near Field's Landing (Still Ranch) 6 Comment
  HSC57674  Stellaria crispa G. L. Clifton, Griswold 1979-7-25 10867 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC90683  Stellaria media Gail Newton 1982-5-1 2500 Humboldt Eureka, Elk River Wildlife Area Comment
  UC183560  Stellaria nitens Joseph P. Tracy 1913-5-4 4045 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC6231  Stephanomeria virgata Paul Shields 1955-9-25 Humboldt 17 mi. of Willow Creek Comment
  HSC98186  Stipa lemmonii J. P. Tracy 1930-7-23 9125 Humboldt Horse Mtn. 1524 Comment
  HSC103087  Streptanthus tortuosus Sydney Carothers 2014-6-22 7 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  UCD84700  Streptanthus tortuosus Robert E. Preston 2009-5-27 2681 Humboldt 5.9 mi S of Weitchpec, along Hwy 96. 188 Comment
  HSC54882  Swertia radiata G. L. Clifton, Griswold 1979-7-25 10883 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC73741  Swertia radiata M. A. Baker 1980-7-19 2995 Humboldt Near Bret Hole. 1814 Comment
  HSC63805  Symphoricarpos mollis M. A. Baker 1979-5-25 762 Humboldt Comment
  JEPS13645  Symphoricarpos mollis Joseph P. Tracy 1932-7-11 10415 Humboldt Corral Prairie; Trinity Summit 1584 Comment
  HSC58385  Symphyotrichum bracteolatum Terry Griswold 1979-7-25 10923 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1784 Comment
  HSC39446  Symphyotrichum chilense Linda M. Barker 1976-8-2 1676 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  HSC24019  Symphyotrichum chilense R. A. Vanbianchi 1971-9-10 79 Humboldt Junction of Fieldbrook Rd. and old Hwy. 299 Comment
  UC892758  Symphyotrichum chilense Milo S. Baker 1931-7-17 5408 Humboldt along Redwood Hwy a few miles s of Eureka Comment
  CAS-BOT-BC98973  Symphyotrichum foliaceum var. parryi Doris K. Kildale 1925-8-17 1215 Humboldt Trinity Summit near Ranger Station 1828 Comment
  SEINET11071706 Image available Symphytum asperum Mrs. C. M. Wilder 1934-1 Humboldt Near Alton. At the Rolla Bryant place. Comment
  SEINET11071711 Image available Symphytum asperum Joseph P. Tracy 1943-1 17448 Humboldt Near Iverson Dairy Ranch, Arcata Comment
  UC582545  Synthyris reniformis Joseph P. Tracy 1926-2-28 7380 Humboldt East Fork of Willow Creek Canyon]; Northern Coast Ranges 457 Comment
  CAS-BOT-BC221913  Taeniatherum caput-medusae F. A. Weatherbee 1960-6-22 s.n. Humboldt Ft. Baker Ranch, Eureka Comment
  UC1173660  Tanacetum balsamita Joseph P. Tracy 1939-9-15 16500 Humboldt Eureka Comment
  UCSB22982  Tanacetum bipinnatum Haller, John 1967-6-17 Humboldt At Clam Beach County Park, U.S. Highway 101, about 10 miles north of Arcata Comment
  CAS-BOT-BC376721  Tanacetum bipinnatum Paul F. Covel 1937-7-13 1056 Humboldt Bar near mouth Eel River Comment
  HSC6248  Tanacetum bipinnatum J. W. Johnson 1962-6-4 1405 Humboldt W end of Hollow 10, W.M Lanphere Farm, Samoa Peninsula Comment
  RSA93878  Tanacetum camphoratum F. W. Peirson 1923-7-11 3917 Humboldt 18 miles N. of Eureka Comment
  SBBG65853  Tanacetum vulgare R. Hartwell 1938-8-4 Humboldt near Ferndale Comment
  HSC34807  Taraxacum officinale Lon Hall 1975-4-4 293 Humboldt Arcata. In front of 1735 J St. 15 Comment
  HSC38893  Tauschia kelloggii J. P. Smith, J. O. Sawyer 1973-5-12 6684 Humboldt 3.8 mi. from Redwood Creek on Hoopa road Comment
  CAS-BOT-BC85218  Taxus brevifolia Doris K. Kildale 1926-8-15 2503 Humboldt Willow Creek Canyon 769 Comment
  HSC54591  Taxus brevifolia Overton, Butler 1979-7-24 9659 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC54651  Taxus brevifolia Overton, Butler 1979-7-25 9854 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  RSA24189  Tellima grandiflora Carl B. Wolf 1941-3-2 4062 Humboldt N Coast Range. Bull Creek-Petrolia Road. 12 miles W of Redwood Highway. 457 Comment
  JEPS60709  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1933-5-20 12256 Humboldt Mattole Valley Northern Coast Ranges 30 Comment
  UC1222745  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1950-7-25 18879 Humboldt Burr Valley Buck Mountain (nw slope of mt.) 1066 Comment
  HSC1186  Thelypteris nevadensis J. P. Tracy 1937-7-25 15556 Humboldt Happy Camp Mtn., Trinity Summit Range, NE of Hawkins Bar 1280 Comment
  UC1129923  Thermopsis gracilis A. E. Wieslander 1931-5-17 197 Humboldt Bald Hills Hoopa Quadrangle Comment
  UC1198810  Thlaspi montanum var. montanum Joseph P. Tracy 1934-7-18 13431 1/2 Humboldt Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  CAS-BOT-BC81305  Thuja plicata P. C. Everett; E. K. Balls 1959-10-25 23970 Humboldt 6.9 mi. SW. from Ferndale on Old Coast Road to Capetown 563 Comment
  LA31710  Thuja plicata H. E. Parks; 1932-7-25 1139 Humboldt Trinidad, Camp 21, Hammond Lumber Company 152 Comment
  POM212074  Thuja plicata C. B. Wolf 1930-10-25 1764 Humboldt 9 miles above Blue Lake road to Willow Creek (Lord Ellis Road) 244 Comment
  SBBG56418  Thuja plicata M. Van Rensselaer 1938-3-31 Humboldt Humboldt County [no specific locality] Comment
  UCD134112  Thuja plicata T. I. Storer 1931-7-1 2223 Humboldt Near Ferndale. Comment
  UC1225754  Thysanocarpus curvipes Joseph P. Tracy 1948-5-31 18005 Humboldt Harris 762 Comment
  CAS-BOT-BC88323  Thysanocarpus curvipes John H. Thomas 1968-4-21 14355 Humboldt About 6.4 miles south of Weitchpec (as measured along the road). 170 Comment
  UC161492  Thysanocarpus curvipes Joseph P. Tracy 1903-5-24 1915 Humboldt Alder Point Northern Coast Ranges, Eel River (on Eel River) 152 Comment
  SBBG70437  Tiarella trifoliata var. unifoliata R. Hartwell 1938-8-3 100 Humboldt Garden Club of America Redwood Grove, near Garberville Comment
  CAS-BOT-BC436905  Tiarella trifoliata var. unifoliata Milo S. Baker 1923-7-1 82 b Humboldt Near Wilder's Comment
  POM274694  Tiarella trifoliata var. unifoliata Lyman Benson 1928-7-11 454 Humboldt Bull Creek Flat. Dyerville. Seaward N Coast mt range. Bull Creek, S. Fork Eel River. 61 Comment
  UC1197832  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1932-7-17 10672 Humboldt Trinity Summit; ridges E of Corral Prarie 1828 Comment
  CAS-BOT-BC447608  Tolmiea menziesii Volney Rattan 1903-6-9 s.n. Humboldt Long Bar, Klamath Comment
  HSC97910  Tolmiea menziesii Cara Witte 2007-6-27 378 Humboldt Forest Service Road 6N08. Friday Ridge Road. Approximately 2 miles south of intersection with 5N09. 1474 Comment
  UC1198061  Tonella tenella Joseph P. Tracy 1908-6-9 2660 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  POM332456  Torilis arvensis Thomas W. Nelson, Jane P. Nelson 1978-7-2 4387 Humboldt Along hwy 36 ca. 1 mile E of Grizzly Creek Comment
  UC642292  Torilis nodosa Joseph P. Tracy 1927-6-18 8183 Humboldt near Petrolia (Hills between Petrolia and Ocean) 152 Comment
  UC642321  Torilis nodosa Joseph P. Tracy 1935-5-25 13892 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC169174  Toxicodendron diversilobum Alice Eastwood; John Thomas Howell 1937-6-22 4712 Humboldt Near Harris Comment
  HSC6290  Tragopogon porrifolius William J. Ferlatte 1963-5-12 43 Humboldt Near 11th and B St.s, Arcata Comment
  CAS-BOT-BC399988  Trautvetteria caroliniensis Joseph P. Tracy 1937-7-2 15387 Humboldt Happy Camp Mountain. (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  UC1239719  Trichostema laxum Joseph P. Tracy 1933-11-26 13123 Humboldt Kneeland Prairie Comment
  HSC44328  Trichostema laxum Thomas W. Nelson, Jane P. Nelson 1977-8-6 3700 Humboldt Above Alder Spring 1616 Comment
  RSA318958  Trifolium Patricia Wilder 1968-8-21 4373 Humboldt Big Lagoon Park, just west of U.S. 101 15 Comment
  UC495667  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1932-5-17 10094 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC495671  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1927-6-5 8101 Humboldt s Yager Creek (valley); Northern Coast Ranges 762 Comment
  BLMAR385  Trifolium angustifolium Jennifer Anthony-Wheeler 2004-6-28 385 Humboldt King range, Mouth of Mattole River, along road in willow thickets 36 Comment
  CDA4307  Trifolium angustifolium J. R. Keck Jr., W. Simas 1973-5-3 Humboldt Bear River Road, between Cook & Morrison. 0 Comment
  HSC45119  Trifolium bifidum R. Sutherland 1978-5-19 10 .19578 Humboldt 134 Comment
  UC162857  Trifolium cyathiferum Joseph P. Tracy 1908-6 2827 Humboldt nw slope Buck Mtn; Northern Coast Ranges 1219 Comment
  UC165572  Trifolium depauperatum var. depauperatum Mrs. M. H. Manning Apr 1 1900-May 1 1900 Humboldt Hupa Comment
  UCD109725  Trifolium dichotomum R. Tofsrud 1948-1 s.n. Humboldt Humboldt County. Comment
  JEPS66053  Trifolium dubium W. L. Jepson 1902-6-24 1923 Humboldt Eureka to Arcata Comment
  POM19412  Trifolium dubium L. R. Abrams 6099 Humboldt Arcata to Trinidad Comment
  UC16713  Trifolium eriocephalum var. eriocephalum J. Burtt Davy 1899-6-7 5385 Humboldt near Harris; North Coast Ranges Comment
  UC1223455  Trifolium fucatum Joseph P. Tracy 1950-6-8 18747 Humboldt 1 mi e Cape Mendocino; Cape Ridge 152 Comment
  UCD109049  Trifolium fucatum Joseph P. Tracy 1950-6-8 18747 Humboldt Cape Ridge. 1 mile E of Cape Mendocino. 152 Comment
  RSA168897  Trifolium fucatum var. fucatum Joseph P. Tracy 1938-6-17 15950 Humboldt Cape Mendocino, near ocean shore, south of point of the Cape. Comment
  RSA90948  Trifolium fucatum var. fucatum F. W. Peirson 1926-7-12 7032 Humboldt Orick Comment
  CDA4343  Trifolium glomeratum E. C. Whitney 1977-6-23 Humboldt Loop Road, Fortuna. 0 Comment
  UCD111199  Trifolium hirtum B. L. Kay 1955-6-2 s.n. Humboldt Wagner Ranch, 5 miles southwest Garberville. Comment
  UCSB28369  Trifolium incarnatum Phelps, M. 1972-3-22 Humboldt 20 yds. north of south Garberville Exit, Hwy. 101 213 Comment
  HSC100887  Trifolium longipes Carl C. Marshall Jun 1886 299 Humboldt Trinity Summit. Comment
  JEPS33182  Trifolium longipes var. oreganum Joseph P. Tracy 1926-6-20 7608 Humboldt Horse Mtn Northern Coast Ranges Comment
  UC1197548  Trifolium microcephalum Joseph P. Tracy 1932-5-15 10056 Humboldt 5 mi above mouth of Smith River (at crossing of Roosevelt Hwy); Northern Coast Ranges 30 Comment
  UC16639  Trifolium microcephalum J. Burtt Davy 1899-4-15 5528 Humboldt Eel River bottom North Coast Ranges, Scotia Comment
  HSC95594  Trifolium microdon Andrea Pickart 2002-5-13 102 Humboldt Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 0 Comment
  SEINET12157235  Trifolium microdon J. P. Tracy 1936-1 14840 Humboldt nr Samoa, on Humboldt Bay 6 Comment
  SBBG67249  Trifolium pratense R. Hartwell 1938-8-6 Humboldt near Eureka Comment
  UC162783  Trifolium pratense J. P. Tracy 1909-6-6 2987 Humboldt immediate vicinity Eureka 0 Comment
  HSC28188  Trifolium pratense Richard Curtis 1973-9-27 21 Humboldt Bayside cutoff between Eureka and Arcata. Comment
  UC169345  Trifolium variegatum var. melananthum Joseph P. Tracy 1912-6-30 3714 Humboldt Eureka Northern Coast Region 0 Comment
  UC165551  Trifolium willdenovii Mrs. M. H. Manning 1901-4 70 Humboldt near Hupa Comment
  UC16760  Trifolium willdenovii Joseph Burtt Davy and Walter C. Blasdale 1899-6-27 5874 Humboldt Martin's Ferry Comment
  BLMAR742  Trifolium willdenovii Jennifer Wheeler 2015-5-18 742 Humboldt King range, strawberry rock grazing allotment down windy point 243 Comment
  UC495692  Trifolium willdenovii Joseph P. Tracy 1932-6-14 10157 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  BLMAR259  Trifolium wormskioldii Jennifer Anthony-Wheeler 1998-4-22 259 Humboldt King range, strawberry rock grazing allotment 280 Comment
  CHSC10114  Trifolium wormskioldii J. W. Johnson 1961-8-17 1009 Humboldt Arcata. In a vernal pond community of Hollow 10 W. M. Lanphere Farm. Samoa Peninsula. Comment
  SEINET10577442  Trifolium wormskioldii var. wormskioldii Joseph P. Tracy 1911-6-25 Tracy 3246 Humboldt At Eureka 0 Comment
  HSC14178  Triglochin maritima D. E. Anderson 1962-5-10 2209 Humboldt Lanphere's Comment
  HSC37956  Triglochin maritima Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  UC1134686  Trillium albidum R. Stahelin 1933-5-17 Humboldt Arcata City Park Eureka Quad., Arcata City Park Comment
  HSC15714  Trillium albidum Francis Winter 1960-5-7 Humboldt Hog Ranch Ridge, 8 mi. W of Hoopa Indian Reservation 915 Comment
  HSC96777  Trillium albidum M. Mesler 2006-6-3 608 Humboldt 16 mi. S of Hwy. 299, NF 1 1250 Comment
  CAS-BOT-BC133390  Trillium ovatum Alice Eastwood 1939-3-19 18899 Humboldt Bolling Grove Comment
  HSC41941  Trillium ovatum Richard G. Runyon 1977-4-23 8 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  RSA183586  Trillium ovatum R. D. Zortman 1963-3-16 14 Humboldt 5 miles northeast of Arcata; south of the Mad River, off Warren Creek Road. 91 Comment
  SEINET3991731  Trillium ovatum Unknown 1913-2-9 Humboldt Near Hydesville Comment
  UC1197817  Trillium ovatum Joseph P. Tracy 1932-7-16 10632 Humboldt woods near Corral Prairie Corral Prairie; Trinity Summit 1584 Comment
  POM290755  Trillium ovatum Lyman Benson 1928-7-8 391 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; Watershed: S Fork Eel River. 61 Comment
  SDSU11980  Trillium ovatum W. A. Bemis 1964-3-14 247 Humboldt 48 Comment
  SEINET3888783  Trillium ovatum Michael Dalke 1979-3-31 8 Humboldt Eureka Quadrangle- Azalea Park 2 miles E of U.S. 101.; 0 24 Comment
  UC1537232  Trillium ovatum Gordon H. True Jr. 1936-2-26 329 Humboldt on Eel R. near Pepperwood; Eel. R. 91 Comment
  HSC100892  Trillium sessile var. californicum Carl C. Marshall Apr 1886 122 Humboldt Thickets near bay. Comment
  RSA135459  Triodanis biflora Volney Rattan 1883-6-30 s.n. Humboldt Redwood Creek. Comment
  UC29217  Triodanis perfoliata W. C. Blasdale 1899-6-26 5888 B Humboldt Weitchpek <Weitchpec>; North Coast Ranges, Klamath River, Weitchpek <Weitchpec> Comment
  HSC20851  Triphysaria eriantha subsp. eriantha R. T. Forester 1963-3-2 26 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  JEPS10699  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1944-5-14 17465 Humboldt near Eureka Bucksport; at Bucksport 6 Comment
  CHSC31269  Triphysaria eriantha subsp. rosea Mark Stopher 1980-4-2 45 Humboldt In sand dunes on Samoa Oeninsula near Humboldt Bay. 4 Comment
  CAS-BOT-BC199622  Trisetum canescens Joseph P. Tracy 1932-7-16 10614 Humboldt At Corral Prairie 1524 Comment
  RSA44544  Trisetum canescens Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon, near Orleans, Humboldt County Comment
  SACT002443  Trisetum canescens Herbert Copeland 1936-6-15 Humboldt At world's biggest tree in redwood forest near Dyerville Comment
  UC1133275  Trisetum canescens H. S. Yates 1936-6-17 5704 Humboldt lower nw slope Buck Mountain; South Fork Peak Quad. 792 Comment
  UC1714628  Trisetum canescens Joseph P. Tracy 1917-5-30 4788 Humboldt Dows Prairie; Northern Coast Ranges 60 Comment
  UC526693  Trisetum canescens Joseph P. Tracy Jul 16 1930-Jul 19 1930 8916 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UCD93885  Trisetum canescens R. Tofsrud 1948-9-1 s.n. Humboldt Road between Horse Mt. and Grouse Mt. 1371 Comment
  UC1103146  Trisetum cernuum Joseph P. Tracy 1918-4-21 4881 Humboldt Newells Camp Northern Coast Ranges (on old Kneeland Prairie Road) 304 Comment
  UC1103151  Trisetum cernuum J. P. Tracy 1900-5-22 800 1/2 Humboldt immediate vicinity Eureka 0 Comment
  UC187229  Trisetum cernuum J. P. Tracy 1902-6-20 1751 Humboldt immediate vicinity Eureka 0 Comment
  CDA2569  Trisetum flavescens J. P. Tracy 1917-7-1 4830 Humboldt Eureka. 0 Comment
  HSC53803  Triteleia hyacinthina Griswold, Butler 1979-7-10 6233 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  UC15023  Triteleia hyacinthina Harley P. Chandler May 1901 1246 Humboldt Redwood Belt North Coast Ranges 152 Comment
  UC666897  Triteleia laxa Joseph P. Tracy 1927-6-26 8223 Humboldt on hillsides near ocean; Stone Lagoon 30 Comment
  POM212073  Tsuga heterophylla C. B. Wolf 1930-10-25 1763 Humboldt 12 miles above Blue Lake along Blue Lake to Willow Creek Road (Lord Ellis Road). 305 Comment
  SDSU2008  Tsuga heterophylla D. F. Howe 1963-7-7 3616 Humboldt 5 miles north of Orick on #101. Comment
  RSA1092  Tsuga heterophylla E. R. Johnson 1928-8-26 1151 Humboldt On Arcata-Hoopa Road. Comment
  HSC69853  Typha latifolia R. Kalal 1980-7-20 91 Humboldt Along road to Arcata Marsh Project, foot of I St., Arcata. 2 Comment
  UC153975  Typha latifolia Joseph P. Tracy 1910-10-8 3168 Humboldt region about Humboldt Bay Brainard's Point; Northern Coast Region, region about Humboldt Bay 0 Comment
  HSC79507  Umbellularia californica Kenneth Clark 1980-3-27 564 Humboldt Dead Man's Gulch, throughout Shelter Cove 69 Comment
  POM272289  Umbellularia californica Lyman Benson 1929-7-16 1845 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  RSA46914  Umbellularia californica Doris K. Kildale 1925-12-27 1447 Humboldt Kneeland. 762 Comment
  HSC59133  Urtica dioica subsp. gracilis Terry Roth 1979-5-20 65 Humboldt Along old logging road that follows Jolly Giant Creek. 79 Comment
  RSA167409  Urtica dioica subsp. gracilis Joseph P. Tracy 1950-8-8 19276 Humboldt 1 mile west of lower end of Brogham Hole, 'Trinity Summit Trip'. Comment
  SEINET200748  Urtica dioica subsp. gracilis Joseph P. Tracy 1927-3-6 7837 Humboldt Elk River. 30 Comment
  UC1197783  Vaccinium membranaceum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9034 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC199326  Vaccinium ovatum H. E. Parks; S. T. Parks 1937-4-1 5638 Humboldt Spruce Cove, Trinidad Comment
  HSC26397  Vaccinium ovatum T. O. Osborne 1970-9-16 31 Humboldt Trinidad Bay, Prisoner Rock Comment
  OBI23023  Vaccinium ovatum Robert J. Rodin 1961-8-11 6807 a Humboldt Near Pepperwood Comment
  RSA503177  Vaccinium ovatum Gary D. Wallace 1971-7-28 947 Humboldt King Range, ca. 4 mi. SE of Shelter Cove along King Range Rd. 3.8 mi. S of jct. with Shelter Cove Rd. Comment
  UCD118072  Vaccinium ovatum Linda M. Barker 1976-4-30 1423 Humboldt 3 miles west of Arcata. Comment
  CAS-BOT-BC199411  Vaccinium parvifolium Doris K. Kildale 1926-3-25 1628 Humboldt Liscom Hill near Essex, Lower Mad River Comment
  HSC72827  Vaccinium parvifolium Gail Newton 1980-6-16 196 Humboldt Near Onion Mtn. 1280 Comment
  RSA1368  Vaccinium parvifolium E. R. Johnson 1929-08 1412 Humboldt Arcata Redwood Park 91 Comment
  UC615045  Vaccinium parvifolium Beryl O. Schreiber 1934-6-5 1135 Humboldt 15 miles east of Blue Lake road to Redding Comment
  CHSC114203  Vaccinium parvifolium Loren Gehrung 1998-7-30 159 Humboldt Patricks Point State Park. Comment
  SEINET12335251  Valeriana sitchensis F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -313 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  JEPS9384  Valeriana sitchensis subsp. scouleri Joseph P. Tracy 1925-6-7 7061 Humboldt Willow Creek Canyon; Northern Coast Ranges 609 Comment
  UC1239585  Valeriana sitchensis subsp. sitchensis E. Ethel Tracy 1919-8-1 Humboldt Trinity Summit; Northern Coast Ranges; Trinity Summit 1524 Comment
  UC416773  Valeriana sitchensis subsp. sitchensis Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5839 Humboldt Trinity Summit; North Coast Ranges Comment
Read comments
May 9 2008
  CHSC53306  Vancouveria hexandra L. P. Janeway 1984-5-13 782 Humboldt Along Redwood House Road ca 1 1/2 mi from Hwy 36. 228 Comment
  HSC37714  Vancouveria hexandra J. D. Ackerman, A. M. Montalvo 1974-7-17 375 Humboldt Redwood Grove, E of Van Duzen Co. Park, off Hwy. 36, E of Carlotta 61 Comment
  RSA189781  Vancouveria hexandra Noel Holmgren, James L. Reveal 1966-6-8 2659 Humboldt Coast Range, east of Arcata, 1.5 miles south of Korbel. 274 Comment
  SEINET10932381  Vancouveria planipetala Mary Merello 1993-6-19 Merello 658 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  HSC99039  Vancouveria planipetala Cara Witte 2008-7-7 838 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. 1 mile east of Horse Mountain Mine. 1241 Comment
  SEINET10904790  Vancouveria planipetala Jones 1985-5-10 Jones 35 Humboldt T5n,r6e,sec.34, grays falls campground off of hwy 299. Ceanothus, arbutus, Quercus lobata habitat 241 Comment
  SEINET12093082  Vancouveria planipetala F. H. Utech 1986-1 86 -387 Humboldt ca 5 mi N on Kings Peak Rd, from junction with Shelter Cove Rd, near Tolkan Recreation Area 480 Comment
  UC556336  Vancouveria planipetala Mrs. Emanuel Fritz 1935-1 Humboldt along Redwood Highway between Miranda and Dyerville Comment
  UCD95098  Vancouveria planipetala H. P. Olmo 1928-6-10 s.n. Humboldt Wooley Creek. Comment
  JEPS51168  Velezia rigida W. L. Jepson 1902-7-25 2120 Humboldt Hupa Valley Supply Creek (Supply Creek); , Supply Creek Comment
  SEINET3992208  Veratrum insolitum Unknown 1948-9-12 18213 Humboldt 1 mi. W. of Box Camp 1372 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
  UC447232  Verbascum blattaria Joseph Burtt Davy and Walter C. Blasdale 1899-6-28 5898 Humboldt below Hoopa Valley (Klamath River); North Coast Ranges, Klamath River Comment
  UC585990  Verbena lasiostachys var. lasiostachys Joseph P. Tracy 1933-8-13 12965 Humboldt near Blue Lake (along Mad River) 15 Comment
  JEPS16846  Veronica americana W. L. Jepson 1934-5-7 16707 Humboldt Bull Creek Comment
  UCD124661  Veronica americana Malcolm A. Nobs; S. Galen Smith 1949-8-9 1227 Humboldt 1 mile north of Arcata at junction of Highways 101 and 299, Mad River Valley. Comment
  UC1222772  Veronica americana Joseph P. Tracy 1950-6-8 18727 Humboldt 7 mi s of Ferndale (summit of Bear River Ridge, near Mount Glen Ranch); Bear River Ridge 609 Comment
  UC1198066  Veronica arvensis J. P. Tracy 1910-5-1 3131 Humboldt immediate vicinity of Eureka 0 Comment
  UC582552  Veronica peregrina subsp. xalapensis Joseph P. Tracy 1935-5-25 13832 Humboldt Fort Seward 106 Comment
  HSC21211  Veronica persica S. J. Roberts 1965-4-24 15 Humboldt 0.5 mi. S of junction of Iverson and Parton Lanes Comment
  JEPS25055  Veronica scutellata Joseph P. Tracy 1921-6-12 5824 Humboldt Butler Valley; Northern Coast Ranges, Butler Valley 152 Comment
  HSC55299  Veronica serpyllifolia subsp. humifusa Terry Griswold, Marvin Butler 1979-7-10 6379 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC82109  Vicia americana var. americana Thomas W. Nelson, Jane P. Nelson 1980-5-25 5252 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  POM278062  Vicia angustifolia Lyman D. Benson 1928-7-12 461 Humboldt Weott Ranger Station 61 Comment
  HSC104452  Vicia benghalensis Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 22 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC31735  Vicia gigantea Donald Spalinger 1974-4-20 17 Humboldt Across from 1756 Ridgewood Dr. 122 Comment
  UCSB16530  Vicia hirsuta Breedlove, Dennis 1961-7-4 Humboldt North bank of the Mad River, 1 mile east of Blue Lake on U.S. Highway 299 243 Comment
  RSA170257  Vicia hirsuta Joseph P. Tracy 1916-5-31 4689 Humboldt Stitz Creek. Along Eel River South Fork to Scotia. 61 Comment
  UCR84714  Vicia sativa Kathy Harper 1992-5-14 s.n. Humboldt Coast Range, Van Duzen River, c. 1.5 mi. west of Bridgeville on State Hwy 36 195 Comment
  HSC100118  Vicia sativa David Adams 1960-7-15 Humboldt Near Fort Humboldt monument, Eureka 15 Comment
  POM161054  Vicia sativa Joseph P. Tracy 1926-5-2 7433 Humboldt Trinity River Valley, near the south fork. Comment
  RSA114998  Viola adunca E. K. Balls, Lee W. Lenz 1955-5-15 20739 Humboldt 13.5 miles SW from Ferndale along Old Coast road to Capetown. 335 Comment
  UC1761516  Viola adunca Milo S. Baker 1923-7-30 158 Humboldt Iaqua, 1/2 mi from Fredricksons house (near head of Yager Creek) 670 Comment
  CAS-BOT-BC263948  Viola adunca L. B. Kildale 1927-7-23 3788 Humboldt Hoaglin Lake near [Lass---s] Peaks 1524 Comment
  SEINET200800 Image available Viola bakeri J. P. Tracy 1932-7-15 10596 Humboldt Trinity Summit Klamath Mts. Open ground near melting snow. 1829 Comment
  CHSC63426  Viola cuneata Vernon H. Oswald 1994-6-29 6358 Humboldt Titlow Hill Rd. (Forest Rd. 1) at its intersection with 5N46, 4.6 mi S of Hwy. 299, S of Willow Creek. 1386 Comment
  UC302051  Viola cuneata Joseph P. Tracy 1926-6-20 7615 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC21776  Viola cuneata D. E. Anderson 1965-6-1 3755 Humboldt Horse Mtn.; N-facing slope near ski lodge 1433 Comment
  HSC21790  Viola glabella Lincoln Constance 1934-5-26 652 Humboldt Bull Creek Region; N Dyerville Flat grove near Founder's Tree 49 Comment
  UC502964  Viola glabella Joseph P. Tracy 1927-6-12 8153 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1219 Comment
  HSC21788  Viola glabella D. K. Smith 1968-4-8 13 Humboldt On West End Rd., ca. 3 mi. from U.S. 299 Comment
  HSC21793  Viola glabella R. A. Rasp 1964-5-6 41 Humboldt Butler Valley, 11 mi. S of Korbel Comment
  UC1761969  Viola glabella Joseph P. Tracy 1937-7-2 15408 Humboldt Trinity Summit, head of Hors-Linto Creek 1371 Comment
  HSC21866  Viola hallii W. Lanphere 1937-5-11 Humboldt Hoopa Comment
  HSC39000  Viola hallii Thomas W. Nelson, Jane P. Nelson 1976-5-31 2654 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  UC35283  Viola hallii Chesnut and Drew July 1888 Humboldt Kneeland Comment
  SEINET200806 Image available Viola ocellata J. P. Tracy 1922-4-30 6034 Humboldt Tinity River Valley near Willow Creek 500 Comment
  SEINET200801 Image available Viola praemorsa J. P. Tracy 1922-5-29 6067 Humboldt Head of South Yager Creek Comment
  CHSC68507  Viola sempervirens Vernon H. Oswald 1997-4-10 8326 Humboldt Elk Head, north end of Trinidad State Beach. Alonf the trail between the parking area and the bluffs overlooking the ocean. 30 Comment
  UC1198425  Viola sempervirens J. P. Tracy 1901-4-7 1002 Humboldt immediate vicinity of Eureka (Sequoia Park); Sequoia Park 0 Comment
  HSC36516  Viola sempervirens A. M. Montalvo, J. D. Ackerman 1973-4-29 52 Humboldt 3 mi. NE of Kneeland on road to Maple Creek 457 Comment
  HSC60298  Viola sempervirens Phyllis Krieg 1979-4-3 Humboldt Near USFS PSW Experimental Station Lab., Arcata Community Forest, Arcata 30 Comment
  HSC38397  Vulpia bromoides J. D. Ackerman 1975-6-10 450 Humboldt 1 mi. N of Samoa Blvd. and Samoa Bridge Rd., S of Manila near RR tracks, along Humboldt Bay Comment
  HSC9838  Vulpia bromoides J. W. Johnson 1962-4-29 1303 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata. Comment
  HSC9841  Vulpia bromoides J. W. Johnson 1962-5-9 1350 Humboldt Christenson Farm, Samoa Peninsula. Comment
  RSA10149  Vulpia bromoides Joseph P. Tracy 1925-5-17 6980 Humboldt Trinity River Valley, near the South Fork. 183 Comment
  UC1145190  Vulpia microstachys var. pauciflora Joseph P. Tracy 1936-5-29 14825 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  HSC45027  Vulpia myuros R. Sutherland 1978-5-13 4 .13578 Humboldt Mattole River. 282 Comment
  POM118381  Vulpia myuros Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville Comment
  CAS-BOT-BC184732  Vulpia myuros subsp. megalura Doris K. Kildale 1929-5-26 9131 Humboldt Klamath River at Orleans 152 Comment
  UC525655  Vulpia myuros var. hirsuta Joseph P. Tracy 1933-6-13 12598 Humboldt w of Hoopa (near summit on road to Bair's); Hoopa Mountain 1066 Comment
  CAS-BOT-BC128817  Whipplea modesta Doris K. Kildale 1928-7-24 5267 Humboldt Redwood Creek at Berry's 289 Comment
  CAS-BOT-BC128819  Whipplea modesta A. A. Heller 1937-6-8 15894 Humboldt In the forest at Bishop Pine Lodge, 3 miles north of Trinidad Comment
  CHSC63409  Whipplea modesta Vernon H. Oswald 1994-6-29 6365 Humboldt Friday Ridge Rd. (Forest Rd. 6N08) 7.3 mi N of Titlow Hill Rd., 0.8 mi S of Brush Mtn. Lookout Rd., S of Hwy. 299 and Willow Creek. Common groundcover on shaded forest edge. 975 Comment
  HSC24392  Whipplea modesta J. O. Sawyer 1970-6-24 2237 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC42304  Whipplea modesta Tom Duebendorfer 1977-5-15 50 Humboldt 8.9 mi. E on Ward Rd. from junction of Maple Creek Rd. and Old Hwy. 299 610 Comment
  HSC62987  Whipplea modesta David Wheeler 1979-4-21 77 Humboldt 4 mi. past Maple Creek bridge over Mad River on the way to Eureka, hills above Butler Valley Comment
  UC1127680  Whipplea modesta H. L. Person 1931-7-30 Humboldt Fieldbrook Eureka Quadrangle Comment
  UC492216  Whipplea modesta Joseph P. Tracy 1927-8-28 8360 Humboldt Boynton Prairie Northern Coast Ranges 609 Comment
  JEPS60110  Woodwardia fimbriata Lincoln Constance 1934-6-2 784 Humboldt S Fork Eel River; Bull Creek Region Comment
  CAS-BOT-BC382921  Wyethia angustifolia L. R. Abrams 1918-6-15 7125 Humboldt Brannan Mt near Willow Creek 1371 Comment
  OBI15343  Wyethia angustifolia Carl B. Wolf 1937-8-13 9222 Humboldt North Coast Range, 8 I E of Hoopa Valley on New rd towards Trinity summit 1219 Comment
  UC582644  Wyethia angustifolia Joseph P. Tracy 1927-7-24 8295 Humboldt Upper Mattole Valley; Upper Mattole Valley 152 Comment
  UC582645  Wyethia angustifolia Joseph P. Tracy 1933-8-6 12937 Humboldt French Camp Ridge 1066 Comment
  UCSB23112  Wyethia angustifolia Haller, John 1967-6-17 Humboldt Ferndale-Petrolia Road, 12 miles by road southwest of Ferndale, 3 miles northeast of Bear River Bridge at "Capetown" 152 Comment
  RSA441183  Xanthium strumarium M. B. Dunkle 1936-8-22 4856 Humboldt Williams Grove, Eel River. 213 Comment
  RSA12453  Xerophyllum tenax Carl B. Wolf 1934-6-30 5840 Humboldt Near summit of grade on road from Briceland to Shelter Cove; 6 miles from Shelter Cove 244 Comment
  UC1173649  Xerophyllum tenax Joseph P. Tracy 1937-8-15 15665 Humboldt French Camp 1066 Comment
  UC1198219  Xerophyllum tenax Joseph P. Tracy 1933-8-6 12954 Humboldt French Camp Ridge 1066 Comment
  UC1225857  Xerophyllum tenax Joseph P. Tracy 1947-7-9 17862 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC527072  Xerophyllum tenax B. H. Mace; Frank Graham 1922-10-1 38737 Humboldt Brannan Mt., Trinity Forest Comment
  UC154242  Yabea microcarpa Joseph P. Tracy 1906-5-13 2454 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach) Comment
  UC1197337  Yabea microcarpa Joseph P. Tracy 1946-6-15 17560 Humboldt lower foothills Horse Mountain 1066 Comment
  HSC8421  Zeltnera muehlenbergii William J. Ferlatte, B. D. Rogers 1966-8-15 3130 Humboldt North Bank Rd., 2 mi. N of Arcata Comment
  HSC23204  Zeltnera muehlenbergii Jana Kattenhorn 1970-10-31 171 Humboldt Scotia Bluffs, along railroad tracks on E side of the river Comment
  CAS-BOT-BC532738  Zigadenus micranthus Harold E. Parks; Joseph P. Tracy 1934-6-27 11041 Humboldt Horse Mountain 1432 Comment
  UCD150381  Zostera marina William Anderson and H. Mc. 1964-8-4 s.n. Humboldt Eel River Mouth. Comment



  Copyright © 2019 Regents of the University of California — Updated 11 January 2019
0.16 processing seconds