Search Results — 2000 specimen records retrieved (1405 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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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
  HSC102605  Abies concolor M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1592 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  CAS-BOT-BC78057  Abies grandis Doris K. Kildale 1927-2-21 2958 Humboldt Bucksport, back of cemetery 30 Comment
  RSA33416  Abies grandis Doris K. Kildale 1941-7-25 s.n. Humboldt Arcata Comment
  SD136394  Abies grandis Doris Kildale Niles 1941-7-25 Humboldt Arcata Comment
  UC615066  Abies grandis Beryl O. Schreiber 1934-6-5 1131 Humboldt wooded slope 5 mi e of Blue Lake (road to Redding) 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
  HSC70562  Abies procera M. A. Baker 1980-7-19 3042 Humboldt Near Bret Hole. 1814 Comment
  HSC27878  Abronia latifolia Clifton Raymond Chesbrough 1973-6-19 76 Humboldt 1/4 mi. W of the Samoa entrance to Samoa Bridge Comment
  HSC67579  Abronia latifolia J. P. Smith 1971-10-6 4946 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC69787  Abronia latifolia R. Kalal 1979-5-27 35 Humboldt Along Samoa Blvd. 3 Comment
  RSA0025087  Abronia latifolia Lyman Benson 1928-7-10 449 Humboldt Clam Beach, Trinidad. 9 Comment
  RSA0025092  Abronia latifolia Mildred E. Mathias 1929-8-4 769 Humboldt Along the coast near Eureka. Comment
  SEINET11941806  Abronia latifolia K. S. Erdman 1970-1 4811 Humboldt Gold Bluffs Beach about 3 mi NW of Berry Glen on US 101, Prairie Creek State Park Comment
  HSC98194  Acacia decurrens Gary J. Stebbins 1970-3-3 16 Humboldt Along Maple Creek Rd. .5 mi. W of Maple Creek Bridge. Comment
  CAS-BOT-BC436986  Acaena novae-zelandiae D. W. Cooper 1967-6-30 s.n. Humboldt On ridge just southeast of Forest Service Nursery, ca. 2 miles southeast of Crannell and ca. 4 miles east of U.S. Highway 101 Comment
  CAS-BOT-BC330565  Acer circinatum W. R. Dudley 1899-6-21 s.n. Humboldt Englewood Creek, Eel River Comment
  HSC27877  Acer circinatum Clifton Raymond Chesbrough 1973-6-19 75 Humboldt 0.25 mi. from Harris and T Sts. on U St. Comment
  JEPS42746  Acer circinatum W. L. Jepson 1902-6-22 1915 Humboldt near Rio Del; near Rio Del Comment
  UC1222158  Acer glabrum var. glabrum Joseph P. Tracy 1950-7-1 18947 Humboldt near Clear Lake (back of Cold Springs, Cold slope); Grouse Mountain, at Cold Springs, near Clear Lake 1432 Comment
  UC668175  Acer glabrum var. glabrum Joseph P. Tracy 1933-7-11 12707 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  HSC58053  Acer glabrum var. torreyi G. L. Clifton, Griswold 1979-8-1 11919 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  UC718416  Acer macrophyllum Wolf and Johnson 1934-10-11 6756 Humboldt Redwood Highway 6 4/10 mi w Humboldt Redwood Park (Eel River); w of Humboldt Redwood Park, Eel River 91 Comment
  CAS-BOT-BC331586  Acer macrophyllum Doris K. Kildale 1926-9-5 2636 Humboldt Lasseck's Peaks, on trail between Covel[?] Camp and Red Rock 1676 Comment
  SEINET9350229 Image available Acer macrophyllum Frederick Utech, Knight, Walter; Knight Irja 1984-4-20 84 -175 Humboldt Humboldt County; Ca. 0.4 mi S towards Redcrest on Avenue of Giants from junction with US hwy 101. Trees to 20 ft.; along edge of Redwood Forest Association. Elev: 50 ft Herbarium, Carnegie Museum (CM), Pittsburgh, PA. 15 Comment
  HSC4576  Achillea millefolium S. J. Hawks 1965-5-14 63 Humboldt Clam Beach Comment
  HSC91930  Achillea millefolium E. Mackey 1987-5-2 Humboldt Patrick's Point State Park; Palmer's Point Comment
  UC205165  Achillea millefolium Joseph P. Tracy 1919-9-18 5243 Humboldt in comparatively dry places Trinity Summit; Northern Coast Ranges 1524 Comment
  UC9738  Achlys californica Harley P. Chandler June, 1901 1293 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 182 Comment
  CAS-BOT-BC400001  Achlys californica E. Gundershaug; K. White; D. Johnson 1994-5-17 23 Humboldt 0.5 miles N of Hwy. 299 on old logging road, 17 miles E of Blue Lake 510 Comment
  UC1196355  Achlys californica Joseph P. Tracy 1932-7-13 10491 Humboldt woods near Corral Prairie Klamath Mts., Trinity Summit 1524 Comment
  HSC3333  Achlys triphylla D. E. Anderson 1965-5-15 3686 Humboldt About 7 mi. N of Hoopa on Bloody Camp Prairie Rd. Comment
  HSC70631  Achlys triphylla R. York 1980-5-18 585 Humboldt Near Black Mtn. 390 Comment
  HSC3336  Achlys triphylla William J. Ferlatte 1968-5-5 1125 Humboldt Hairpin turn on old Hwy. 299 305 Comment
  HSC3340  Achlys triphylla Lincoln Constance 1934-6-1 773 Humboldt S Fork Eel River, Bull Creek Rd. between Dyerville Bridge and Bull Creek Flat Grove. 46 Comment
  JEPS47775  Achlys triphylla subsp. triphylla Milo S. Baker 1923-7-29 166 Humboldt along hwy. near Lawrence Creek Comment
  UCD94992  Achlys triphylla subsp. triphylla W. C. Overton Jr. 1980-4-27 s.n. Humboldt Grizzly Creek Redwoods State Park, southeast of Fortuna on State Highway 36. Along the Van Duzen River. Comment
  CAS-BOT-BC210656  Achnatherum lemmonii Joseph P. Tracy 1927-5-14 8000 Humboldt Trinity River Valley, near the South Fork 182 Comment
  CAS-BOT-BC216443  Achnatherum occidentale subsp. californicum Doris K. Kildale 1925-8-17 1258 Humboldt Trinity Summit 1917 Comment
  CAS-BOT-BC30421  Achyrachaena mollis Doris K. Kildale 1928-5-19 5116 Humboldt Chalk Mountain Comment
  HSC35817  Acmispon denticulatus Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-6-20 1919 Humboldt Above Goat Rock, 2 mi. W of Bridgeville Comment
  HSC48684  Aconitum columbianum subsp. columbianum Brad Klipfel 1973-7-31 238 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC59943  Aconitum columbianum subsp. columbianum J. P. Smith, Steve Selva 1970-6-30 4112 Humboldt Comment
  CAS-BOT-BC412847  Aconogonon davisiae Joseph P. Tracy 1935-7-30 14383 Humboldt Salmon Summit 2103 Comment
  HSC53838  Aconogonon phytolaccifolium Griswold, Butler 1979-7-10 6289 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC56217  Actaea rubra G. L. Clifton, Griswold 1979-8-2 12233 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  SEINET12094122  Actaea rubra F. H. Utech 1988-1 88 -268 Humboldt 14 mi W of Bridgeville enroute to Carlotta on CA 36, Van Duzen County Park, Pamplin Grove 50 Comment
  HSC4589  Adenocaulon bicolor Paul Shields Jun 1955 Humboldt 2 miles S. Weott Comment
  HSC95886  Adiantum aleuticum Will Ferrand 2002-2-2 23 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  UC197917  Adiantum aleuticum Joseph P. Tracy 1907-8-20 2604 Humboldt Hydesville; Northern Coast Region 30 Comment
  UC811115  Adiantum jordanii George Neville Jones 1936-3-22 8662 Humboldt s fork Eel River near Garberville Comment
  SEINET11854879  Agoseris apargioides J. P. Tracy 1949-1 18441 Humboldt Near Box Camp. Trinity Summit, meadow at Box Camp 1463 Comment
  JEPS36258  Agoseris grandiflora Milo S. Baker 1923-7-20 66 Humboldt 15 mi e, at Redwood house on Yager Road Hydesville Comment
  OBI17128  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1942-7-19 17275 Humboldt Vicinity of Garberville Comment
  UC1222929  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1950-7-31 19227 Humboldt 1 mi n, road crosses sides of the Friday Ridge Friday's Camp; Grouse Mountain Comment
  HSC79419  Agoseris heterophylla Kenneth Clark 1980-4-18 582 Humboldt On Coastal Bluffs above Dead Man's Gulch 137 Comment
  SEINET11855017  Agoseris heterophylla J. P. Tracy 1950-1 19006 Humboldt 2 mi S of Burr Valley on Albee Road 1158 Comment
  UC582741  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1933-5-30 12417 Humboldt (near Garberville) Redway 152 Comment
  UC1145067  Agrostis densiflora Joseph P. Tracy 1936-6-8 14873 Humboldt clay bluff close to ocean shore Trinidad 3 Comment
  CAS-BOT-BC127290  Agrostis exarata C. L. Hitchcock; C. V. Muhlick 1963-7-14 22909 Humboldt Along Eel River at Fern bridge. Comment
  CAS-BOT-BC127297  Agrostis exarata Doris K. Kildale 1927-7-23 3796 Humboldt Near Lasseeks [Lassics] Peaks. Haaglin [Hoagland] Lake. Comment
  POM160890  Agrostis exarata Joseph P. Tracy 1918-7-5 5016 Humboldt White Thorn Valley. 305 Comment
  UC1145153  Agrostis exarata Joseph P. Tracy 1936-6-28 15030 Humboldt in bog Bald Mountain, Lake Prairie 1066 Comment
  UCD52138  Agrostis exarata Joseph P. Tracy 1938-7-4 16021 Humboldt Big Lagoon. 6 Comment
  UCD52411  Agrostis exarata Harley P. Chandler 1901-6-1 1512 Humboldt Klamath River. 426 Comment
  UCD52234  Agrostis exarata var. pacifica A. H. Murphy 1948-7-29 s.n. Humboldt Sherman Flat, 3.5 miles north of Blocksburg. Comment
  HSC76547  Agrostis gigantea Teresa Prendusi 1981-7-23 341 Humboldt Near Black Mtn. 890 Comment
  CAS-BOT-BC139500  Agrostis hallii Ira L. Wiggins 1932-7-25 5896 Humboldt Roadsides near McKinleyville. Comment
  UC1103524  Agrostis hallii J. P. Tracy 1912-7-23 3803 Humboldt about 5 mi above mouth South Fork Eel River 60 Comment
  UC1103526  Agrostis hallii Joseph P. Tracy 1912-7-31 3893 Humboldt nw slope Buck Mountain (Burr Valley); Northern Coast Ranges, nw slope Buck Mountain 1066 Comment
  UC1145077  Agrostis hallii Joseph P. Tracy 1938-7-4 15982 Humboldt valley South Yager Creek; Valley of South Yager Creek 762 Comment
  UC1145078  Agrostis hallii Joseph P. Tracy 1938-7-4 15983 Humboldt valley South Yager Creek; Valley of South Yager Creek 762 Comment
  UC188841  Agrostis hallii Joseph Burtt Davy and Walter C. Blasdale 1899-5 5880 Humboldt Martins Ferry Comment
  UCD52687  Agrostis hallii H. S. Yates 1936-6-17 5698 Humboldt Lower N.W. slope of Buck Mt. 792 Comment
Read comments
Aug 22 2008
  CHSC114091  Agrostis idahoensis Jennifer Buck; Danielle Roach 2009-8-19 SFM 06 C Humboldt Kerlin Fen, South Fork Mountain; UTM Zone 10N, 453899E, 4494304N. 1633 Comment
  UC1103394  Agrostis idahoensis Joseph P. Tracy 1935-7-27 14279 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  UC552709  Agrostis idahoensis Joseph P. Tracy 1935-7-27 14303 Humboldt McKay Prairie Trinity Summit, McKay Prairie 1584 Comment
  UC1103396  Agrostis oregonensis Joseph P. Tracy 1934-8-29 13637 Humboldt openings in forest near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC552750  Agrostis oregonensis Joseph P. Tracy 1934-7-13 13392 Humboldt Dows Prairie North Coast Ranges 60 Comment
  CAS-BOT-BC138633  Agrostis stolonifera David D. Keck 1938-8-5 4771 Humboldt Big Lagoon. Comment
  UC552711  Agrostis thurberiana Joseph P. Tracy 1935-7-27 14281 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC104460  Aira caryophyllea Jeff Barrett 2009-4-1 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  SEINET10835851  Aira caryophyllea A. Arthur Heller 1923-7-8 Heller 13765 Humboldt State redwood camp, 10 miles south of Dyerville. Comment
  SEINET5335998  Aira caryophyllea W. D. Billings 1940-6-28 1353 Humboldt 1/4 mi. N of Trinidad Comment
  CAS-BOT-BC138326  Aira caryophyllea var. caryophyllea H. E. Parks; S. T. Parks 1936-6-1 5850 Humboldt Spruce Cove, Trinidad. Comment
  CAS-BOT-BC138331  Aira caryophyllea var. caryophyllea Joseph P. Tracy 1927-6-19 8199 Humboldt Northern Coast Region. Big Lagoon. 6 Comment
  RSA286352  Aira praecox R. F. Thorne 1974-7-29 45069 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  UCD55803  Aira praecox Joseph P. Tracy 1941-6-15 16906 Humboldt Wilder Ridge, east of Kings Peak. 762 Comment
  HSC60371  Alisma triviale Terry Roth 1979-5-29 101 Humboldt Arcata, at the end of H St. 0 Comment
  CAS-BOT-BC462974  Allium bolanderi L. R. Abrams 1918-6-15 7115 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  HSC103075  Allium campanulatum Sydney Carothers 2014-6-11 15 Humboldt Six Rivers Nat'l Forest, Lassics Botanical Area, upper north face of Mt. Lassic 1777 Comment
  HSC74606  Allium campanulatum M. A. Baker 1980-7-11 2798 Humboldt Near Red Mtn. 1341 Comment
  CAS-BOT-BC464487  Allium campanulatum Joseph P. Tracy 1932-7-12 10479 Humboldt Trinity Summit, Head of Brett Hole 1828 Comment
  HSC39431  Allium campanulatum Thomas W. Nelson, Jane P. Nelson 1976-6-22 2875 Humboldt E of Goat Hill lookout 1666 Comment
  HSC43977  Allium falcifolium B. Klipfel 1974-6-25 435 Humboldt Horse Mtn., near the towers Comment
  HSC76218  Allium falcifolium Overton, Butler 1979-7-24 9708 Humboldt Near Black Rock 1554 Comment
  HSC82040  Allium falcifolium Thomas W. Nelson, James Nelson 1980-6-10 5407 Humboldt Along Swayback Ridge 4-wheel drive rd. 2.5 mi. N of the junction with USFS rd. 1S07 1463 Comment
  HSC71825  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson 1980-6-27 5956 Humboldt Saddle between Mt. Lassic and peak to E 1677 Comment
  UC1198189  Allium unifolium J. P. Tracy 1911-5-30 3209 Humboldt immediate vicinity of Eureka (bluff back of Bucksport); Bucksport 0 Comment
  HSC78649  Allium validum D. K. Imper 1982-7-23 1480 Humboldt Near Onion Lake. 1371 Comment
  UC666891  Allium validum Joseph P. Tracy 1934-8-29 13630 Humboldt meadow at McKay's Camp South Fork Mountain, McKay's Camp 1676 Comment
  RSA249506  Allotropa virgata R. F. Thorne, P. C. Everett, K. Thorne 1965-8-5 35132 b Humboldt Wailaki Recreation Site. 610 Comment
  CAS-BOT-BC171311  Alnus incana subsp. tenuifolia Milo S. Baker 1927-8-21 2487 a Humboldt Brush Mt. 914 Comment
  CAS-BOT-BC170944  Alnus rhombifolia Doris K. Kildale 1926-9-9 2686 Humboldt Little Van Duzen River on Bridgeville - Weaverville road 640 Comment
  UC1222280  Alnus rhombifolia Joseph P. Tracy 1950-9-22 19375 Humboldt 8 mi below Orleans (near Slate Creek); Klamath River 121 Comment
  CAS-BOT-BC169536  Alnus rubra Doris K. Kildale 1928-3-30 4368 Humboldt Big Lagoon Comment
  CHSC130  Alnus rubra A. Small 1953-4-1 Humboldt Near Ferndale. Comment
  UC176169  Alnus rubra Joseph P. Tracy 1913-9-9 4392 Humboldt Big Lagoon Northern Coast Ranges 30 Comment
  UCD110034  Alnus rubra Linda M. Barker 1976-6-14 1602 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC57668  Alnus viridis subsp. sinuata G. L. Clifton, Griswold 1979-7-25 10853 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UCD55901  Alopecurus geniculatus Malcolm A. Nobs; S. Galen Smith 1949-8-3 1164 Humboldt 1 mile south of Fields Landing, Eel River Valley, Marsh Plant Survey of California. Comment
  SEINET10473459  Ambrosia Mary Susan Taylor 1990-8-22 Taylor 6076 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  CAS-BOT-BC13700  Ambrosia chamissonis W. S. Cooper 1925-7-28 102 Humboldt Cape Mendocino Comment
  HSC5664  Ambrosia chamissonis H. E. Parks Sep 1941 24215 Humboldt Little River 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
  HSC74216  Amelanchier alnifolia var. semiintegrifolia M. A. Baker 1980-7-23 3173 Humboldt Near Orleans Mtn. 1859 Comment
  UC14217  Amelanchier utahensis Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  CDA1716  Ammophila arenaria T. C. Fuller 1961-9-28 7062 Humboldt 0.2 miles south of Samoa. 0 Comment
  SEINET200930  Ammophila arenaria J. P. Tracy 1918-7-28 5087 Humboldt Humboldt Bay particularly Samoa Comment
  HSC17842  Anagallis arvensis S. J. Hawks 1965-5-18 79 Humboldt Clam Beach Comment
  CHSC27929  Anaphalis margaritacea M. S. Taylor 1975-4-12 466 Humboldt Ca. 2000 yds E of Hwy 101, in Orick, by RR tracks. Comment
  HSC90221  Anaphalis margaritacea L. Watson, J. Watson Aug 1990 2 Humboldt Near Manilla; Mad River Slough and Dunes, 50 yds. N of parking lot, E. of trail Comment
  UC582520  Anaphalis margaritacea Joseph P. Tracy 1934-8-31 13649 Humboldt Kneeland Prairie 762 Comment
  SEINET8734419 Image available Anaphalis margaritacea H. E. Parks, S. T. Parks 1943-1 24237 Humboldt Stone Lagoon Comment
  UC1222882  Anaphalis margaritacea Joseph P. Tracy 1950-7-25 19070 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC34275  Anemone deltoidea K. Irwin 1975-8-13 Humboldt N Trinity Mtn. area below Mill Creek Lakes Comment
  HSC44555  Anemone deltoidea Brad Klipfel 1973-7-15 174 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC56099  Anemone deltoidea G. L. Clifton 1979-7-31 11817 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  SBBG71821  Anemone deltoidea S. W. Hutchinson -Apr-1927 899 Humboldt Eureka 8 Comment
  CAS-BOT-BC391772  Anemone deltoidea M. Louise Hutchinson 1913-5-1 s.n. Humboldt Near Eureka Comment
  HSC82404  Anemone deltoidea Thomas W. Nelson 1979-7-11 5034 Humboldt Along trail from Grogan's Hole to summit of N Trinity Mtn. Comment
  POM365632  Anemone deltoidea Unspecified s.n. Humboldt [No location data on label] Comment
  UC503035  Anemone deltoidea Joseph P. Tracy Jul 16 1930-Jul 19 1930 8964 Humboldt near McKay Camp; North Coast Ranges, South Fork Mtn 1676 Comment
  UC160912  Anemone oregana Joseph P. Tracy 1909-4-4 2949 Humboldt s foot of Humboldt Hill (near Buhne's Ranch, region about Humboldt Bay); North Coast Ranges 0 Comment
  JEPS12247  Angelica genuflexa Joseph P. Tracy 1940-9-26 16725 Humboldt Eureka 6 Comment
  UC582660  Angelica genuflexa Joseph P. Tracy 1937-9-30 15690 Humboldt Dow's Prairie 60 Comment
  CAS-BOT-BC221421  Angelica hendersonii Carl B. Wolf 1927-8-29 1216 Humboldt Devil's Gate, south of Cape Mendocino Comment
  HSC71410  Angelica hendersonii J. M. DiTomaso 1980-8-3 1831 Humboldt Big Lagoon State Park, S end, 50m N of boat ramp, 40m from Lagoon Comment
  UC494177  Anisocarpus madioides Parks and Tracy 1930-5-25 864 Humboldt Laribee Valley Comment
  HSC58749  Antennaria argentea Overton, Butler 1979-7-24 9595 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  UC1222880  Antennaria media Joseph P. Tracy 1950-8-8 19297 Humboldt Croghan Hole Trinity Summit 1676 Comment
  UC582730  Antennaria media Joseph P. Tracy 1935-7-24 14202 Humboldt (near Ranger Station) Trinity Summit 1828 Comment
Read comments
Aug 4 2007
  UC582630  Anthemis cotula Joseph P. Tracy 1933-7-3 12633 Humboldt Willow Creek; Trinity River Valley 152 Comment
  HSC34811  Anthoxanthum odoratum Dryden 1975-4-21 128 Humboldt Arcata 0 Comment
  HSC8949  Anthoxanthum odoratum R. T. Forester 1963-4-30 52 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  HSC8953  Anthoxanthum odoratum D. E. Anderson 1962-3-31 1957 Humboldt Coastal area of Prairie Creek State Park, back of sand dunes Comment
  JEPS71148  Anthoxanthum odoratum A. L. Hormay 1932-5-11 48 Humboldt Arcata Comment
  RSA286350  Anthoxanthum odoratum R. F. Thorne 1974-7-29 45071 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  SEINET3918444  Anthoxanthum odoratum H. E. Parks, S. T. Parks 1952-1 24444 Humboldt Spruce Cove, Trinidad.; 0 61 Comment
  SEINET3918448  Anthoxanthum odoratum Gerald T. Rood 1962-5-6 11 Humboldt Kneeland Road ca. 1 mile west of Barry Road.; 0 Comment
  UC1100218  Anthoxanthum odoratum Malcolm A. Nobs, S. Galen Smith 1949-8-3 1208 Humboldt 2 mi n of Eureka (bordering Humboldt Bay); Humboldt Bay Comment
  UC922011  Anthoxanthum odoratum Joseph P. Tracy 1942-6-2 17101 Humboldt 2 mi n of Bridgeville 609 Comment
  HSC62743  Anthriscus caucalis J. M. DiTomaso 1979-4-21 882 Humboldt Clam Beach Comment
  UC1197619  Apocynum androsaemifolium Joseph P. Tracy Jul 16 1930-Jul 19 1930 9031 Humboldt along summit near Blake lookout (S. Fork Mt.); Northern Coast Ranges, S. Fork Mt. 1706 Comment
  UC153989  Apocynum androsaemifolium Joseph P. Tracy July, 1908 2786 Humboldt ridge between Van Duzen and Mad Rivers near Low Gap; Northern Coast Ranges, Humboldt and Trinity Co. 914 Comment
  CAS-BOT-BC392165  Aquilegia formosa Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  UC162360  Arabis glabra Joseph P. Tracy 1908-6 2711 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC98619  Arabis glabra var. glabra Cara Witte 2007-5-31 154 Humboldt Along National Forest Rte. 1, near Kinsey Ridge, 1.5 miles north of intersection with 4N09 1299 Comment
  HSC57667  Arabis holboellii var. retrofracta G. L. Clifton, Terry Griswold 1979-7-25 10851 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC74547  Arabis platysperma M. A. Baker 1980-7-24 3211 Humboldt Near Orleans Mtn. 1625 Comment
  UC933379  Aralia californica Annie M. Alexander and Louise Kellogg 1948-9-3 5587 Humboldt Trinity R. near Hoopa Reservation; Trinity R. Comment
  CAS-BOT-BC128651  Arbutus menziesii Doris K. Kildale; L. B. Kildale 1930-4-13 9574 Humboldt Bridgeville 289 Comment
  CAS-BOT-BC128698  Arbutus menziesii Doris K. Kildale 1927-12-1 4210 Humboldt Klamath River at Orleans Comment
  UC1222872  Arctium minus Joseph P. Tracy 1950-9-2 19351 Humboldt at, 3 mi s of Field's Landing Beatrice Comment
  UC1225932  Arctostaphylos X media Joseph P. Tracy 1945-3-30 17501 Humboldt Eureka 45 Comment
  CAS-BOT-BC23728  Arctostaphylos columbiana Joseph P. Tracy 1934-3-11 13151 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC23751  Arctostaphylos columbiana Joseph P. Tracy 1934-7-2 13293 Humboldt Vicinity of Trinidad 60 Comment
  CAS-BOT-BC23779  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15170 Humboldt Fickle Hill, 6 mi. SE of Arcata 609 Comment
  CAS-BOT-BC23811  Arctostaphylos columbiana C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. between Shelter Cove and Kenny, near Humboldt - Mendocino county line. Comment
  HSC68133  Arctostaphylos columbiana J. P. Smith, J. O. Sawyer 1975-4-6 8052 Humboldt 3 mi. N of Whitehorn, across from the CA Dept. of Forestry Fire Station Comment
  JEPS38945  Arctostaphylos columbiana Joseph P. Tracy 1934-3-11 13152 Humboldt French Camp Ridge 1066 Comment
  UC673126  Arctostaphylos columbiana Joseph P. Tracy 1940-7-14 16688 Humboldt near KIngs Peak; Wilder Ridge 762 Comment
  RSA24329  Arctostaphylos columbiana var. columbiana C. B. Wolf 1941-2-26 4041 Humboldt 6 2/10 mi. W. of Klamath River Bridge on Weitchpec to Orick Rd. 610 Comment
  SEINET11989090  Arctostaphylos columbiana var. tracyi R. Gankin, Hildreth, W. R. 1967-1 1170 Humboldt 21.4 mi E of US 101 on Bald Hills Rd (from Orick), French Camp Ridge Comment
  UCSB11336  Arctostaphylos glandulosa Zinke, P. 1950-10-9 Humboldt King Peak 1219 Comment
  CAS-BOT-BC24367  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1926-9-5 2614 Humboldt Lesseck's Peaks. 1371 Comment
  CAS-BOT-BC24371  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1927-3-10 2993 Humboldt Dobbyns Creek. Comment
  UC585968  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1934-7-1 13275 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC40070  Arctostaphylos nevadensis subsp. knightii Doris K. Kildale 1929-4-25 7436 Humboldt McDowell Butte - Kneeland Prairie 914 Comment
  CAS-BOT-BC46630  Arctostaphylos patula Joseph P. Tracy 1939-8-16 16419 Humboldt Grouse Mountain. 1524 Comment
  HSC35782  Arctostaphylos patula Thomas W. Nelson, B. Reinhardt 1975-7-30 2097 Humboldt Head of Pilot Creek, Last Chance Ridge Comment
  UC1198670  Arctostaphylos patula Joseph P. Tracy 1937-7-29 15599 Humboldt along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  UC585899  Arctostaphylos patula Joseph P. Tracy 1927-6-12 8135 Humboldt Horse Mountain 1432 Comment
  SEINET2028698 Image available Arctostaphylos tracyi H. E. Parks 1931-12-1 4950 Humboldt Hobson's Trinidad 200 Comment
  CAS-BOT-BC43994  Arctostaphylos uva-ursi Philip A. Munz 1954-7-25 19876 Humboldt in Coastal Strand Community, at Humboldt Lighthouse south of Samoa Comment
  CAS-BOT-BC46793  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17504 Humboldt Eureka 45 Comment
  CAS-BOT-BC47213  Arctostaphylos uva-ursi Doris K Niles 1951-5-1 12 Humboldt Table Bluff Hill, Redwood Highway approximately 1 mi. n. of Loleta. Comment
  HSC7725  Arctostaphylos uva-ursi S. J. Hawks 1965-3-19 10 Humboldt 1/4 mi. W of Fairhaven Comment
  UC1225930  Arctostaphylos uva-ursi Joseph P. Tracy 1945-5-10 17506 Humboldt Eureka 45 Comment
  UCD52154  Arctostaphylos uva-ursi Roman Gankin; W. R. Hildreth 1967-10-24 1149 Humboldt 1.7 miles s. of Samoa, on the Humboldt Peninsula. Humboldt County, California. Comment
  HSC67134  Arctostaphylos viscida J. P. Smith, J. O. Sawyer 1973-5-12 6696 Humboldt 9.6 mi. from Redwood Creek on Hoopa Rd. Comment
  CAS-BOT-BC48258  Arctostaphylos viscida subsp. viscida L. B. Kildale 1930-6-1 9753 Humboldt Klamath River at Bluff Creek Comment
  HSC8972  Aristida oligantha DWC 1956-8-2 Humboldt Garberville - Laughlin soil Comment
  HSC34913  Arnica cordifolia Thomas W. Nelson, Jane P. Nelson 1975-5-24 1852 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC70755  Arnica cordifolia R. York 1980-5-17 528 Humboldt Near Le Perron Peak 1066 Comment
  RSA12448  Arnica discoidea C. B. Wolf 1934-7-1 5845 Humboldt 2.7 mi from Briceland on rd. to Shelter Cove. 91 Comment
  UC582424  Artemisia dracunculus Joseph P. Tracy 1932-8-27 10751 Humboldt on: Blue Slide Van Duzen River 91 Comment
  CHSC10103  Artemisia pycnocephala J. W. Johnson 1961-9-4 1098 Humboldt Arcata. On the west slope of Ridge 1, Christenson Farm, Samoa Peninsula. Comment
  HSC55680  Aruncus dioicus var. acuminatus Overton, Butler 1979-7-26 9933 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek. 1326 Comment
  JEPS45626  Aruncus dioicus var. pubescens Joseph P. Tracy 1916-6-25 4749 Humboldt e of Trinidad (Redwood Creek); Northern Coast Ranges 152 Comment
  UC492191  Aruncus dioicus var. pubescens Joseph P. Tracy 1932-7-18 10807 Humboldt Head of Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  HSC98560  Asarum caudatum Cara Witte 2008-6-13 727 Humboldt Forest Service Road 4N32. 1 mile south of intersection with Forest Service Road 4N32E. 1455 Comment
  UC162718  Asclepias cordifolia Joseph P. Tracy 1911-7-9 3477 Humboldt near Willow Creek (hill slopes at w side of river); Northern Coast Ranges, Trinity River 182 Comment
  RSA47105  Asclepias speciosa Doris K. Kildale 1925-7-5 s.n. Humboldt Willow Creek Flat 152 Comment
  HSC54217  Aspidotis densa Griswold, Butler 1979-7-12 7281 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  RSA53857  Aspidotis densa Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mountain 1524 Comment
  SEINET10473646  Aster subspicatus Mary Susan Taylor 1982-10-24 Taylor 5175 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  RSA0006694  Astragalus agnicidus R. C. Barneby 1954-5-19 11570 Humboldt Over ridge on Henry Tosten ranch near Bear Buttes area. 4 miles south of Miranda. 762 Comment
  CAS-BOT-BC69453  Athyrium filix-femina subsp. cyclosorum Carl B. Wolf 1939-7-6 9516 Humboldt Along Larabee Creek, 6 7/10 mi. below Blocksburg on road to Bridgeville. 304 Comment
  POM281070  Athyrium filix-femina subsp. cyclosorum Lyman Benson 1928-7-12 492 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; Watershed: S Fork Eel River. 76 Comment
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Oct 12 2010
  HSC102552  Athyrium filix-femina var. cyclosorum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1540 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  SDSU1603  Athyrium filix-femina var. cyclosorum D. R. Harvey 1938-8-13 2252 Humboldt Redwood Park. Comment
  HSC102945  Avena barbata J. P. Smith 2009-5-30 12598 Humboldt Arcata. Near intersection of Valley West and Giuntoli Road Comment
  HSC9032  Avena sativa E. W. Styskel 1964-4-28 76 Humboldt End of Davis St. at the edge of Eel River in Rio Dell Comment
  CAS-BOT-BC98032  Baccharis pilularis Doris K. Kildale 1926-11-27 2845 Humboldt Alton Bluff 30 Comment
  RSA47112  Baccharis pilularis Doris K. Kildale 1925-9-12 1326 Humboldt Salmon Creek near Miranda Comment
  RSA607468  Baccharis pilularis R. S. Woglum 1938-8-29 2029 Humboldt North Coast: Trinidad. Comment
  CHSC19741  Baccharis pilularis subsp. consanguinea Gary J. Stebbins 1970-2-2 7 Humboldt Along U. S. 101 1.5 miles north of Patricks Point State Park. 83 Comment
  UC492246  Barbarea orthoceras Joseph P. Tracy 1928-4-22 8413 Humboldt along streamlet, Trinity River Valley, at Willow Creek 152 Comment
  UC492247  Barbarea orthoceras Joseph P. Tracy 1927-7-24 8292 Humboldt Mattole Valley 152 Comment
  RSA245262  Barbarea verna Thomas W. Nelson 1973-4-25 798 Humboldt Beside Hwy 101 at Bayside turnoll. Comment
  CAS-BOT-BC106351  Bellis perennis Mrs. H. C. Cantelow 1935-5-30 803 Humboldt 8 mi. n. of Orick Comment
  HSC71607  Berberis aquifolium var. repens Gail Newton 1980-6-16 201 Humboldt Near Onion Mtn. 1280 Comment
  CAS-BOT-BC75677  Berberis nervosa L. B. Kildale 1931-8-23 s.n. Humboldt Snow Camp. 1219 Comment
  UC1198382  Berberis nervosa Joseph P. Tracy 1924-4-27 6642 Humboldt along hwy near Ruby Creek (Willow Creek) 609 Comment
  CAS-BOT-BC66269  Blechnum spicant W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  CHSC26466  Blechnum spicant J. Detzer 1977-4-8 3 Humboldt S end of Patricks Point State Park, ca. 0.2 mi w of Hwy. 101 and 5 mi n of Trinidad. 60 Comment
  JEPS59982  Blechnum spicant Lincoln Constance 1934-6-8 840 Humboldt S Fork Eel River Bull Creek Region Comment
  UC936236  Boechera divaricarpa Harold E. Parks and Joseph P. Tracy 1949-6-25 11678 Humboldt Box Camp Trinity Summit 1463 Comment
  HSC31636  Borago officinalis Glenn McGourty 1974-6-1 85 Humboldt Comment
  HSC31637  Borago officinalis Glenn McGourty 1974-6-1 85 Humboldt Comment
  HSC70782  Boschniakia strobilacea Gail Newton 1980-7-24 1768 Humboldt Near Somes Mtn. 1615 Comment
  HSC99638  Boschniakia strobilacea Gail Newton 1980-7-22 1656 Humboldt Near Devils Backbone 1554 Comment
  HSC49373  Boschniakia strobilacea Jimerson, J. Pageau 1979-6-15 580 Humboldt W of Forest Service Rd. 11N21 on the boundary between Sections 27 and 28 762 Comment
  UC197916  Botrychium multifidum Joseph P. Tracy 1906-11-4 2551 Humboldt Eureka Northern Coast Region 0 Comment
  HSC76195  Boykinia major Overton, Butler 1979-8-2 12503 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC23140  Boykinia occidentalis Norman Dennis 1965-6-3 145 Humboldt Big Lagoon County Park, SW corner of Big Lagoon Comment
  HSC64840  Boykinia occidentalis J. P. Smith 1973-5-26 6861 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  SD51254  Boykinia occidentalis Darley F. Howe 1961-8-1 Humboldt 6 miles north of Trinidad on #101 Comment
  SEINET12215472  Boykinia occidentalis H. P. Chandler 1901-1 1501 Humboldt Klamath River - North Coast Ranges 427 Comment
  UC667115  Boykinia occidentalis Joseph P. Tracy 1934-7-22 13484 Humboldt at crossing of the Bridgeville-Kneeland Road North Yager Creek 396 Comment
  HSC6582  Brassica rapa D. E. Anderson 1962-2-10 1922 Humboldt 1.5 mi. S of Trinidad Comment
  CAS-BOT-BC106286  Brickellia californica L. R. Abrams 1927-8-27 12049 Humboldt Rocky river bottom, Eel River, Richardson Grove Comment
  HSC70984  Brickellia greenei Gail Newton 1980-7-22 1660 Humboldt Near Devils Backbone 1554 Comment
  JEPS18752  Brickellia greenei Joseph P. Tracy 1934-9-5 13655 Humboldt Horse Mountain 1402 Comment
  CHSC31284  Briza maxima Mark Stopher 1980-5-16 68 Humboldt Along Hwy 101 near jct with Elk River, s of Eureka. Comment
  UC657696  Briza maxima P. B. Kennedy 1929-6-13 Humboldt Etterberg Comment
  CAS-BOT-BC145569  Briza minor Doris K. Kildale 1928-6-24 5265 Humboldt Redwood Creek at Berry's. Comment
  SEINET4182983 Image available Briza minor Franklin Fitz Humboldt Backyard weed patch in Arcata Comment
  UCR123923  Brodiaea elegans subsp. elegans George K. Helmkamp, E. A. Helmkamp 2001-7-8 6967 Humboldt North coast hills., Calif. Hwy 36, 2.2 mi west of Dinsmore 732 Comment
  HSC35816  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-20 1920 Humboldt Above Goat Rock, 2 mi. W of Bridgeville Comment
  RSA114096  Brodiaea stellaris Rimo C. Bacigalupi, Lincoln Constance 1951-6-13 3406 Humboldt Along State Highway 36, five miles east of Bridgeville. Comment
  HSC37548  Brodiaea terrestris subsp. terrestris J. D. Ackerman 1975-6-10 457 Humboldt 1 mi. N of Samoa bridge turnoff from Samoa Blvd., S of Manila Comment
  SEINET799035  Bromus carinatus Joseph P. Tracy 1919-1 5159 Humboldt Hill slopes at W. side of Trinity River, near Willow Creek 152 Comment
  HSC9295  Bromus diandrus R. H. Berg 1963-5-12 72 Humboldt King Salmon, S of Eureka. Comment
  HSC37852  Bromus hordeaceus Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  UCD58714  Bromus hordeaceus A. H. Murphy 1951-6-1 53 Humboldt O. O. Davis Ranch. South slope of South Fork Mtn., 3 miles E of Low Gap. 853 Comment
  UC37636  Bromus laevipes Harley P. Chandler June, 1901 1512 A Humboldt North Coast Ranges, Klamath River Klamath River; North Coast Ranges, Klamath River 426 Comment
  UC204534  Bromus madritensis subsp. rubens Joseph P. Tracy 1918-5-12 4929 Humboldt Northern Coast Ranges, at Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  UC1103353  Bromus tectorum Joseph P. Tracy 1933-6-13 12600 Humboldt from Hoopa westward to Bair's (near summit of Horse Mountain); Horse Mountain 914 Comment
  UC179918  Bromus vulgaris Joseph P. Tracy 1912-7-27 3884 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC36855  Cakile edentula var. edentula Alice Eastwood; John Thomas Howell 1934-4-11 1323 Humboldt Trinidad. Comment
  HSC6611  Cakile maritima Paul Shields 1955-9-17 Humboldt 1/2 mi. S of mouth of Mad River Comment
  UC673072  Cakile maritima Joseph P. Tracy 1940-9-21 16724 A Humboldt near Samoa (on Humboldt Bay); Humboldt Bay 3 Comment
  UC709461  Cakile maritima Joseph P. Tracy 1941-8-3 16979 Humboldt w foot of Table Bluff Table Bluff 3 Comment
  HSC39983  Cakile maritima Linda M. Barker 1976-9-3 1694 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC76546  Calamagrostis koelerioides Teresa Prendusi 1981-7-21 282 Humboldt Near Whiteys Peak 1646 Comment
  UC526803  Calamagrostis koelerioides Joseph P. Tracy 1933-8-30 13008 Humboldt Horse Mountain Northern Coast Ranges 1371 Comment
  BLMAR27  Calamagrostis nutkaensis Brad Barr June, 1982 27 Humboldt King range, on edge of high bench above light house Comment
  UC70880  Calamagrostis nutkaensis Joseph Burtt Davy and Walter C. Blasdale 1899-8-1 6215 Humboldt Eureka Comment
  UC1103694  Callitriche heterophylla Joseph P. Tracy 1934-6-23 13249 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  HSC62990  Callitriche stagnalis David Wheeler 1979-4-22 80 Humboldt Mad River Slough, 1 mi. W of intersection of Mad River Rd. and Iverson Rd. Comment
  HSC72926  Calocedrus decurrens R. York 1980-5-23 619 Humboldt Near Buck Mtn. 1524 Comment
  HSC98720  Calocedrus decurrens Cara Witte 2008-7-11 886 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  OBI7411  Calocedrus decurrens H. E. McMinn July1922 278 Humboldt 1 mi E of Dinsmore Comment
  UC667123  Calochortus amabilis Joseph P. Tracy 1916-6-19 4711 Humboldt Bosworth's Larrabee Creek 457 Comment
  HSC15346  Calochortus tolmiei H. E. Parks, J. P. Tracy 1930-5-25 790 Humboldt Laribee Valley 762 Comment
  HSC70252  Calochortus tolmiei M. A. Baker 1980-6-8 1919 Humboldt Near Buck Flat. 1554 Comment
  HSC70761  Calochortus tolmiei M. A. Baker 1980-7-19 2994 Humboldt Near Bret Hole. 1814 Comment
  HSC74349  Calochortus tolmiei Gail Newton 1980-6-28 748 Humboldt Near Mad River Butte. 1536 Comment
  UCR45374  Calochortus tolmiei Thomas W. Nelson 1977-6-15 3450 Humboldt North Coast Range, [Horse Mountain] along old road to ski area 1372 Comment
  JEPS61766  Calochortus vestae Joseph P. Tracy 1916-6-19 4713 Humboldt Bosworth's Ranch Northern Coast Ranges, Laribee Creek 457 Comment
  UC1197694  Calochortus vestae Joseph P. Tracy 1930-6-29 8811 Humboldt nw slope Buck Mountain 762 Comment
  RSA54144  Calycadenia ciliosa H. M. Pollard 1946-8-28 s.n. Humboldt Near Summit of Orleans Mt. 1829 Comment
  HSC24779  Calycadenia truncata Barbara Kelly 1971-7-7 66 Humboldt Somes Bar Comment
  HSC55033  Calyptridium monospermum Overton, Butler 1979-7-31 11473 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC32545  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson 1973-7-10 1030 Humboldt Humboldt/Trinity County line, Mt. Lassic (Signal Peak) 1790 Comment
  HSC71173  Calystegia occidentalis subsp. occidentalis Thomas W. Nelson 1977-5-30 3417 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  HSC46384  Calystegia silvatica subsp. disjuncta Catherine Chin 1978-8-19 107 Humboldt 11th and B St., Arcata Comment
  HSC46956  Calystegia soldanella J. P. Smith, Thomas W. Nelson 1977-6-30 9204 Humboldt Samoa Peninsula just E of the drag strip. Comment
  UC146192  Camassia quamash subsp. quamash J. P. Tracy 1906-4-29 2028 Humboldt s slope of Humboldt Hill near Field's Landing; Humboldt Hill 30 Comment
  HSC46958  Camissonia cheiranthifolia J. P. Smith, Thomas W. Nelson 1977-6-30 9202 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  UC35372  Camissoniopsis cheiranthifolia subsp. cheiranthifolia W. C. Blasdale 1896-6-3 Humboldt W. Eureka Comment
  SEINET10462990  Campanula prenanthoides Tracy 1934-8-24 TRACY 13591 Humboldt Trinity Highway, on ridge east of North Fork of Mad River 610 Comment
  SEINET10840306  Campanula prenanthoides Bruce Allen 1936-7-14 Allen 36 A243 Humboldt Willow Creek Comment
  UC168961  Campanula prenanthoides Joseph P. Tracy 1909-8-1 3061 Humboldt in woods Northern Coast Ranges, Kneeland Prairie 762 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
  SEINET10463758  Campanula scouleri Howard S. Irwin 1975-8-16 Irwin s.n. Humboldt Grogan's Hole area Comment
  HSC6624  Capsella bursa-pastoris Paul Shields Jul 1955 Humboldt 2 mi. S of Weott Comment
  SDSU2482  Cardamine angulata Wayne A. Bemis 1964-5-8 289 Humboldt North Coast redwood rain forest. Freshwater Forest of Freshwater City. 94 Comment
  CAS-BOT-BC37427  Cardamine californica Doris Kildale 1931-5-10 10559 Humboldt Snow Camp. Comment
  HSC26340  Cardamine californica Thomas W. Nelson 1971-4-4 365 Humboldt Above the S Fork of the Van Duzen River and beside Hwy. 36 at the bridge over the Van Duzen River Comment
  HSC6687  Cardamine californica S. S. Stutz 1963-3-31 16 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  RSA0034557  Cardamine californica var. integrifolia H. E. Parks, Joseph P. Tracy 1931-3-26 916 Humboldt Lower Van Duzen River. 61 Comment
  UC249682  Cardamine californica var. sinuata Joseph P. Tracy 1921-3-20 5426 Humboldt 12 mi e Hydesville (Van Duzen River at Blue Slide); Northern Coast Ranges, Van Duzen River at Blue Slide 91 Comment
  UC668057  Cardamine pensylvanica Joseph P. Tracy 1937-7-2 15401 Humboldt head Little Hors-Linto Creek , head Little Hors-Linto Creek (Trinity Summit) 1371 Comment
  UC668056  Cardaria draba Joseph P. Tracy 1938-6-12 15895 Humboldt opposite mouth of Van Duzen River (Eel River, Alton to Fortuna); Eel River 15 Comment
  CAS-BOT-BC384762  Cardionema ramosissimum L. R. Abrams 1916-7-18 6124 Humboldt Arcata to Trinidad Comment
  UC1222956  Carduus pycnocephalus subsp. pycnocephalus Joseph P. Tracy 1947-6-8 17703 Humboldt vicinity of, 1/2 mi w of town Carlotta 30 Comment
  UC1222954  Carduus tenuiflorus Joseph P. Tracy 1942-6-28 17266 Humboldt toward Hungry Hollow Angel's Ranch; Bald Mountain, Hungry Hollow Comment
  UC577397  Carduus tenuiflorus Joseph P. Tracy 1936-6-28 15008 Humboldt Hungry Hollow Bald Mt. 762 Comment
  CHSC43008  Carex aquatilis var. dives L. P. Janeway 1987-7-30 2533 Humboldt At Dry Lagoon. 3 Comment
  CHSC85062  Carex arcta Gordon Leppig 2002-7-12 1785 Humboldt Pacific Lumber Company Land. L 35 Rd. 1/2 mile west of Fox Creek Road, west side of large swamp. 70 Comment
  SEINET7550365 Image available Carex arcta Julia Pykala, D. H. Norris 1987-6-5 1436 Humboldt E of Maple Creek, Lake Prairie. 1052 Comment
  UC1586919  Carex arcta Juha Pykala and D. H. Norris 1987-6-5 1360 Humboldt e Maple Creek (se of Snow Camp Mountain, upper course of Redwood Creek); Redwood Creek 1100 Comment
  HSC98944  Carex athrostachya Cara Witte 2008-7-16 922 Humboldt Mud Lake. Off National Forest 1, near Buck Flat. 1569 Comment
  RSA754380  Carex bolanderi P. F. Zika 2009-6-15 24487 Humboldt S bank of Mad River, near Hatchery Road, S of town of Blue Lake 20 Comment
  UC1115804  Carex canescens Joseph P. Tracy 1939-7-9 16318 Humboldt at Lake Prairie Bald Mountain, Lake Prairie 1066 Comment
  POM161061  Carex concinnoides Joseph P. Tracy 1926-6-6 7567 Humboldt Hoopa Mountain. On road west from Hoopa Valley. 915 Comment
  CAS-BOT-BC34437  Carex deflexa var. boottii Joseph Prince Tracy 1935-6-2 13921 Humboldt Big Lagoon. 30 Comment
  UC1103103  Carex deweyana subsp. leptopoda Joseph P. Tracy 1923-6-20 6309 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  SEINET4110861  Carex diandra D. W. Taylor 2004-1 19127 Humboldt Pond in the divide between Frost Creek and Martin Creek, about 1 air mile east of the Alderpoint Road. 518 Comment
  JEPS25978  Carex echinata subsp. echinata Joseph P. Tracy 1932-7-14 10567 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  JEPS25968  Carex geyeri Joseph P. Tracy 1933-7-11 12662 Humboldt Horse Mountain 1432 Comment
  JEPS79842  Carex globosa Joseph P. Tracy 1929-6-3 8605 Humboldt Mouth of East Fork, Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 487 Comment
  JEPS25999  Carex gracilior Joseph P. Tracy 1936-5-29 14826 Humboldt on ridge e Orick; Gans Prairie 548 Comment
  UC1108985  Carex gynodynama H. E. and S. T. Parks May, 1937 5813 Humboldt Spruce Cove, Trinidad, near sea level. Comment
  UC562719  Carex hassei H. E. Parks and Joseph P. Tracy 1931-5-9 9401 Humboldt vicinity Trinidad; Bishop Pine Lodge 60 Comment
  UC562720  Carex hassei Joseph P. Tracy 1927-6-17 8170 Humboldt Big Lagoon Northern Coast Region 6 Comment
  CHSC40134  Carex hendersonii L. P. Janeway 1983-5-29 320 Humboldt Along Jolly Giant Cr, e of HSU campus. 60 Comment
  UCR52372  Carex hendersonii L. P. Janeway 1982-6-17 9 Humboldt c. 300 m west of main Arcata Community Forest Road along the road to the HSU water tank. 175 Comment
  HSC69687  Carex hendersonii Thomas W. Nelson, J. O. Sawyer 1978-6-9 4101 Humboldt Grizzly Creek State Park Comment
  UC562250  Carex lenticularis var. impressa Joseph P. Tracy 1935-7-23 14148 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  CAS-BOT-BC28505  Carex lenticularis var. limnophila Carl B. Wolf 1927-8-22 788 Humboldt Big Lagoon Comment
  HSC97361  Carex leptalea Juha Pykala, D. H. Norris 1987-6-24 1895 Humboldt Big Lagoon. 0 Comment
  HSC102233  Carex luzulina M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1155 Humboldt Patterson Meadows 1555 Comment
  UC1115806  Carex luzulina var. luzulina Joseph P. Tracy 1937-7-9 16341 Humboldt Snow Camp 1402 Comment
  UC1982417  Carex mariposana Barbara Wilson, Richard Brainerd, Susan Erwin, Christine Jordan and Mike Friend 2003-6-20 10950 Humboldt Sundew Meadow on South Fork Mountain, on Shasta-Trinity National Forest road 3N32. Comment
  HSC102161  Carex microptera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1071 Humboldt Patterson Meadows 1555 Comment
  HSC98991  Carex multicaulis Cara Witte 2008-6-13 718 Humboldt Forest Service Road 4N32. 0.5 mi. N of intersection with Forest Service Road 4N32B. 1417 Comment
  HSC102119  Carex multicostata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1023 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  SEINET4292202 Image available Carex multicostata Unknown 2003-1 7945 Humboldt High North Coast Ranges. At upper edge of Clear Lake, 2.9 km southeast of Titlow Hill. Grouse Mountain Quad. Comment
  HSC103144  Carex multicostata M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1528 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  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
  CHSC47355  Carex nudata L. P. Janeway 1984-5-13 784 Humboldt Levee on E side Eel River near Fortuna and Sandy Prairie Rd. 12 Comment
  CAS-BOT-BC119389  Carex obnupta T. G. W. s.n. Humboldt Arcata Comment
  POM118373  Carex obnupta Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC7067  Carex obnupta Francis Winter 1960-4-23 Humboldt 1 mi. S of Simpson Creek, Korbel-Maple Creek Rd. 213 Comment
  POM160309  Carex ovalis Joseph P. Tracy 1926-6-20 7631 Humboldt Horse Mountain. 1463 Comment
  UC1115820  Carex pachystachya Joseph P. Tracy 1939-7-9 16342 Humboldt Snow Camp 1402 Comment
  HSC45951  Carex pachystachya J. P. Smith, Steve Selva 1970-6-30 4108 Humboldt Comment
  SEINET10817662  Carex pachystachya Lawrence P. Janeway 1984-6-17 Janeway 847 Humboldt Willow Creek quad (15'). T6N, R4E, NW1/4 of sec. 33. Damp drainage along cutbank of Titlow Hill Rd at turn to Horse Mtn. Serpentine in jeffrey pine forest. 1420 Comment
  UC249559  Carex saliniformis Joseph P. Tracy 1921-8-7 5863 Humboldt Stone Lagoon Northern Coast Region 3 Comment
  HSC102222  Carex scopulorum var. bracteosa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1138 Humboldt Patterson Meadows 1555 Comment
  UC3030704  Carex serratodens Joseph P. Tracy July, 1908 2898 Humboldt near Low Gap (Dinsmore's Ranch, ridge between Van Duzen and Mad Rivers); Northern Coast Ranges 1066 Comment
  HSC102155  Carex subfusca M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1063 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC116679  Carex subfusca Joseph Prince Tracy 1928-6-24 8470 Humboldt Valley of south Yager Creek in wet meadow. 762 Comment
  HSC44059  Carex subfusca Thomas W. Nelson 1976-7-9 3004 Humboldt Along creek S of Mount Lassic (Signal Peak). 1707 Comment
  UC202501  Carex tumulicola Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3591 Humboldt Hydesville Northern Coast Ranges 60 Comment
  RSA152530  Carex unilateralis Joseph P. Tracy 1946-5-30 17539 Humboldt Wet gully in grassland near Bridgeville. 457 Comment
  JEPS100923  Carex vesicaria var. major Dean W. Taylor 1991-8-15 12278 Humboldt Snow Camp Lake 1310 Comment
  JEPS79840  Carex vesicaria var. major Joseph P. Tracy 1934-7-13 13388 Humboldt Dow's Prairie 60 Comment
  UC1222837  Castilleja affinis subsp. affinis Joseph P. Tracy 1950-6-15 18799 Humboldt 7 mi n Harris; Mail Ridge Comment
  HSC45088  Castilleja affinis subsp. litoralis R. Sutherland 1978-4-25 11 Humboldt Bluff at Shelter Cove. 24 Comment
  JEPS35843  Castilleja affinis subsp. litoralis Rimo Bacigalupi, and L. R. Heckard 8989 Humboldt just n Table Bluff lighthouse (s end of Humboldt Bay); Humboldt Bay Comment
  UC1196854  Castilleja affinis subsp. litoralis Joseph P. Tracy 1920-7-4 5342 Humboldt mouth of Little River; Northern Coast Ranges 15 Comment
  UC1196856  Castilleja affinis subsp. litoralis Joseph P. Tracy 1927-8-14 8332 Humboldt n end Big Lagoon (hills) 152 Comment
  UC582580  Castilleja affinis subsp. litoralis Joseph P. Tracy 1926-6-18 7606 Humboldt e of Fields Landing; Humboldt Hill 152 Comment
  UC1224687  Castilleja ambigua subsp. humboldtiensis D. E. Anderson 1964-4-12 2973 Humboldt 1 mi s Arcata (at ne end of Humboldt Bay); Humboldt Bay Comment
  JEPS3616  Castilleja applegatei subsp. martinii Clyde Ritchie Bell 1951-4-21 1036 Humboldt Just south of Somes Bar and immediately south of the Siskiyou-Humboldt County line, along Calif. State Highway 96 (Klamath River Road). Comment
  JEPS3617  Castilleja applegatei subsp. martinii Clyde Ritchie Bell 1951-4-21 Humboldt about 4 mi n Orleans (along Calif Hwy 96 (Klamath River road)) Comment
  CAS-BOT-BC255517  Castilleja applegatei var. pinetorum Barry Silver 1986-4-23 531 Humboldt Bair Road, 9.5 miles nw of junction with Highway 299, Pine Ridge Summit area 944 Comment
  HSC45086  Castilleja attenuata R. Sutherland 1978-5-19 3 .19578 Humboldt Mckee Flat 296 Comment
  RSA183597  Castilleja franciscana D. E. Anderson 1962-7-10 2244 Humboldt Luffenholtz Beach, about 2 miles south of Trinidad along old 101 highway. Comment
  HSC71608  Castilleja pruinosa Gail Newton 1980-6-16 198 Humboldt Near Onion Mtn. 1280 Comment
  UC582475  Castilleja pruinosa Joseph P. Tracy 1926-6-27 7676 Humboldt Horse Mountain; North Coast Ranges 1432 Comment
  JEPS88810  Castilleja pruinosa T. I. and F. M. Chuang 1991-7-9 7875 Humboldt 4.3 mi se Route 299 junction with Titlow Hill road (on way to Horse Mt) Comment
  UCR141621  Ceanothus arcuatus J. M. Tucker 1948-9-3 1852 Humboldt Six Rivers National Forest (formerly part of Trinity National Forest) on Horse Mountain at junction of road to Grouse Mt. and road to Horse Mt. Mine 1463 Comment
  CAS-BOT-BC126841  Ceanothus cuneatus Thomas Nelson 1977-6-15 3453 Humboldt unspecified 1371 Comment
  HSC74353  Ceanothus cuneatus Gail Newton 1980-6-17 208 Humboldt Near Onion Mtn. 1341 Comment
  UC176125  Ceanothus cuneatus var. cuneatus Joseph P. Tracy 1913-6-17 4173 Humboldt near summit of Buck Mt. North Coast Ranges 1676 Comment
  UC249581  Ceanothus cuneatus var. cuneatus Joseph P. Tracy 1922-4-30 5998 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS82328  Ceanothus gloriosus var. exaltatus Roger Raiche 1983-7-18 30530 Humboldt 2.4 mi n rd to Shelter Cove (along King Peak Rd); King Range Comment
  RSA0050338  Ceanothus incanus Carl B. Wolf 1941-3-3 9992 Humboldt N. Coast Range, 1/2 miles N of Ettersburg on road to Honeydew. 305 Comment
  BLMAR669  Ceanothus integerrimus Jennifer Wheeler 2013-6-3 669 Humboldt Lacks Creek, Pine Ridge Rd. 1097 Comment
  HSC48784  Ceanothus integerrimus Brad Klipfel 1975-6-17 662 Humboldt Along Titlow Hill Rd. Comment
  JEPS42112  Ceanothus integerrimus Chesnut and Drew 1888-7-9 Humboldt Kneeland Prairie Comment
  HSC36672  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-7-11 2 .11775 Humboldt Along county rd. 305 Comment
  HSC37606  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-7-11 7 .11775 Humboldt Along county rd. 259 Comment
  HSC37607  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-7-11 10 .11775 Humboldt Along county rd. 244 Comment
  HSC37608  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-7-11 4 .11775 Humboldt Along county rd. 274 Comment
  UC1193284  Ceanothus oliganthus var. sorediatus P. Zinke 1950-10-4 173 Humboldt w ridge Brushy Mt. (1.5 mi fron ocean.); Quad. 28D2 914 Comment
  CAS-BOT-BC51224  Ceanothus parryi C. Hart Merriam 1920-8-27 s.n. Humboldt South fork Eel River (10 miles so. of Garberville) Comment
  HSC43184  Ceanothus parryi R. Sutherland 1975-4-22 6 .22475 Humboldt Near China Creek at county rd. 207 Comment
  JEPS42371  Ceanothus parryi W. L. Jepson 1902-6-20 1906 Humboldt s Camp Grant (Hubbard's Station) 243 Comment
  UC1052837  Ceanothus parryi W. L. Colwell 1955-6-7 27 Humboldt Tree miles west of Weott, one half mile norht of Grasshopper Mountain lookout 914 Comment
  CAS-BOT-BC52043  Ceanothus prostratus Joseph P. Tracy 1927-5-15 8056 Humboldt Hoopa Mountain. On road West from Hoopa Valley, in open forest of yellow and sugar pines 914 Comment
  CAS-BOT-BC53060  Ceanothus pumilus Joseph P. Tracy 1927-5-15 8056 Humboldt Hoopa Mountain - On road west from Hoopa Valley 914 Comment
  UC1198017  Ceanothus pumilus Joseph P. Tracy 1946-5-4 17527 Humboldt Willow Creek Canyon, along Trinity Highway 609 Comment
  BLMAR806  Ceanothus thyrsiflorus Madeleine Hassett 2017-7-25 806 Humboldt Lost Coast Headlands, ~200ft down the road from Fleener Creek trailhead 75 Comment
  CAS-BOT-BC52989  Ceanothus thyrsiflorus A. A. Heller 1923-7-9 13782 Humboldt On grassy slopes along the grade south of Eureka Comment
  CAS-BOT-BC52992  Ceanothus thyrsiflorus Terry Hines; Ellen Purcell; Nina Williams 1988-5-1 66 Humboldt Korbel turnoff, 1/2 mile from weigh station on Hwy 299. 60 Comment
  HSC43193  Ceanothus thyrsiflorus R. Sutherland 1975-5-28 0 .28575 Humboldt N Fork of Horse Mtn. Creek 427 Comment
  HSC69626  Ceanothus thyrsiflorus R. Kalal 1980-5-8 33 Humboldt Arcata oxidation ponds 2 Comment
  HSC79361  Ceanothus thyrsiflorus Kenneth Clark 1980-6-14 684 Humboldt Above N Fork of Dead Man's Gulch 213 Comment
  RSA25755  Ceanothus thyrsiflorus Carl B. Wolf 1941-7-28 11091 Humboldt 1.5 miles N of Loleta along the redwood Hwy, 23 Comment
  RSA398934B  Ceanothus thyrsiflorus Bonnie C. Templeton 1964-6-13 10087 Humboldt Lighhouse Point, Trinidad Head. Comment
  UC1071396  Ceanothus thyrsiflorus A. E. Wieslander 1931-5-22 220 Humboldt near Briceland; Briceland Quad. Comment
  CAS-BOT-BC52864  Ceanothus velutinus Volney Rattan 1882-1-1 s.n. Humboldt Road to Knuland Prairie Comment
  RSA21587  Ceanothus velutinus var. laevigatus Carl B. Wolf 1937-8-13 9232 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  HSC74217  Ceanothus velutinus var. velutinus M. A. Baker 1980-7-23 3177 Humboldt Near Orleans Mtn. 1859 Comment
  CAS-BOT-BC277180  Centaurea X pouzinii T. C. Fuller 1961-9-26 7030 Humboldt Horse Prairie, 2 mi. s. of Redcrest Comment
  JEPS44151  Centaurea calcitrapa Joseph P. Tracy 1940-10-17 16760 Humboldt near Dyerville (South Fork Station) 45 Comment
  UC1222948  Centaurea solstitialis Joseph P. Tracy 1948-9-20 18216 Humboldt vicinity of Hosler Creek; Hoopa Valley, Hosler Creek 91 Comment
  JEPS46931  Centaurium muehlenbergii Joseph P. Tracy 1931-8-9 9610 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  RSA245260  Centaurium muehlenbergii B. D. Rogers, William J. Ferlatte 1966-8-15 3130 Humboldt North Bank Road, two miles north of Arcata. Comment
  UC162716  Centaurium muehlenbergii Joseph P. Tracy 1911-7-10 3485 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC104291  Cephalanthera austiniae Samantha E. Andres 2016-5-6 23 Humboldt About 4 mi. W on Mattole Rd. from the South Fork/Honeydew exit, above Harper Creek 128 Comment
  UC14952  Cephalanthera austiniae Chesnut and Drew 1888-1 Humboldt Comment
  HSC4099  Cerastium glomeratum H. E. Parks, S. T. Parks Apr 1944 24279 Humboldt Spruce Cove, Trinidad 61 Comment
  HSC97943  Cerastium glomeratum Cara Witte 2007-6-28 384 Humboldt FS Road 5N10. Approximately 0.5 mi E of intersection with National Forest 1. 1426 Comment
  UC527564  Cercis occidentalis C. B. Wolf 1931-8-31 2380 Humboldt Sandy Bar Swimming Hole South Fork of Trinity River (slopes on w side of river 1 mi above its mouth) 243 Comment
  HSC56996  Chaenactis douglasii var. douglasii Overton, Butler 1979-7-24 9571 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  CAS-BOT-BC166041  Chamerion angustifolium subsp. circumvagum T. Mosquin; L. Mosquin 1962-6-19 4492 Humboldt Along highway at north end of bridge over Big Lagoon, north of Eureka Comment
  POM182457  Cheilanthes gracillima Joseph P. Tracy 1908-7-3 2765 Humboldt Dinsmore's Ranch, in valley of Van Duzen River opposite Buck Mountain 762 Comment
  HSC58197  Chenopodium album G. L. Clifton, Griswold 1979-8-2 12296 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  CDA3059  Chenopodium ambrosioides B. F. Kemp 1957-11-8 511 -57 Humboldt Orrick. 0 Comment
  UC673038  Chenopodium atrovirens Joseph P. Tracy 1932-7-13 10500 Humboldt Corral Prairie Trinity Summit 1584 Comment
  RSA424563B  Chenopodium botrys T. S. Elias, Barbara A. Elias 1987-8-26 10624 Humboldt Fernbridge, 0.5 mile S of Route 101; along West bank of Eel River, about 0.5 mile N of bridge Comment
  UC673037  Chenopodium multifidum Joseph P. Tracy 1934-8-4 13552 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC673036  Chenopodium pumilio Joseph P. Tracy 1931-10-12 9729 Humboldt Blue Slide Van Duzen River 91 Comment
  RSA43898  Chimaphila menziesii H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1524 Comment
  CAS-BOT-BC451384  Chimaphila menziesii Volney Rattan 1879-1-1 s.n. Humboldt Klamath Comment
  UC21649  Chimaphila menziesii J. Burtt Davy 1899-6-18 5620 Humboldt Bald Mt. near Korbel; Bald Mt. Comment
  BLMAR529  Chimaphila umbellata Jennifer Wheeler 2009-6-23 529 Humboldt King range, On King Peak road Comment
  UCD117377  Chimaphila umbellata Linda M. Barker 1976-6-14 1597 Humboldt 3 miles west of Arcata. Comment
  SD42334  Chimaphila umbellata Carl B. Wolf 1937-8-12 9209 Humboldt North Coast Range, South Fork Mt., 6/10 mi. So. of Blake Lookout 1676 Comment
  UCD117387  Chimaphila umbellata H. P. Olmo 1928-6-10 s.n. Humboldt Wooley Creek. Comment
  CDA7411  Chrysanthemum segetum B. F. Kemp 1958-4-11 345 -58 Humboldt South Side Mad River near mouth. 0 Comment
  RSA46774  Chrysolepis chrysophylla Doris Kildale Gillespie 1937-8-26 15366 Humboldt Christmas Prairie. Comment
  CAS-BOT-BC36480  Chrysolepis chrysophylla Ella Dales Cantelow 1938-10-22 2180 Humboldt Near Red Cap Creek, SW of Orleans Comment
  HSC54607  Chrysolepis chrysophylla var. minor Overton, Butler 1979-7-24 9699 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  SEINET7712239  Chrysopsis oregona Chesnut, Drew 1888-7-21 Humboldt S. Fork Mtn. Comment
  CAS-BOT-BC279831  Cichorium intybus Doris K. Kildale 1926-7-22 2428 Humboldt Metropolitan Comment
  UC179916  Cicuta douglasii Joseph P. Tracy 1914-9-6 4612 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mountain 1219 Comment
  CAS-BOT-BC284403  Cirsium arvense Alice Eastwood 1921-7-21 10659 Humboldt Carlotta Comment
  SD113203  Cirsium arvense Darley F. Howe 1959-8-4 2801 Humboldt 78.5 miles west of Weaverville on Highway 299. 609 Comment
  UCSB15303  Cirsium arvense Breedlove, Dennis 1961-7-4 Humboldt Mad River, 1 mile east of Blue Lake on U.S. Highway 299 243 Comment
  HSC40773  Cirsium brevistylum Thomas W. Nelson 1976-7-9 3014 Humboldt Along S.R. 36 just E of Heley Creek Comment
  SEINET200853  Cirsium breweri Joseph P. Tracy 1924-7-6 6717 Humboldt Near Ruby Creek on the Willow Creek Hwy north coast ranges Comment
  SEINET11860324  Cirsium douglasii var. canescens H. E. Parks, Parks, S. T. 1947-1 24441 Humboldt South Fork Camp, Willow Creek Comment
  UC204833  Cirsium occidentale var. venustum Joseph P. Tracy 1918-7-3 4988 Humboldt Wilder Ridge Northern Coast Ranges, Wilder Ridge 762 Comment
  CAS-BOT-BC288714  Cirsium remotifolium Peter H. Raven; R. Snow 1958-7-21 13654 Humboldt 7.2 miles NW of Capetown on road to Ferndale Comment
  JEPS30563  Cirsium remotifolium var. odontolepis Peter H. Raven, R. Snow 1958-7-21 13654 Humboldt 7.2 mi nw of Capetown (on road to Ferndale) Comment
  CAS-BOT-BC285772  Cirsium vulgare Carl B. Wolf 1927-8-22 803 Humboldt Big Lagoon Comment
  HSC96518  Cirsium vulgare Gordon Leppig 1998-8-23 1071 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  CAS-BOT-BC172077  Clarkia davyi D. E. Breedlove 1962-6-7 3037 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  CHSC52939  Clarkia davyi L. P. Janeway 1984-5-16 792 Humboldt On the North Spit of Humboldt Bay; on the west side of Samoa Rd ca 1/4 mile north of the boat ramp. 3 Comment
  CAS-BOT-BC164593  Clarkia gracilis subsp. gracilis Harley P. Chandler 1901-6-1 1363 Humboldt Hupa Indian Reservation 152 Comment
  UC594157  Clarkia purpurea S. K. Harris, J. P. Tracy 1936-6-10 3277 Humboldt near mouth South Fork Trinity River (hills w of river) 640 Comment
  CAS-BOT-BC172510  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1932-6-26 10264 Humboldt Valley of South Yager Creek 762 Comment
  UC1196980  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1914-6-14 4498 Humboldt near Hydesville; Northern Coast Ranges, Yager Creek 60 Comment
  UC1196982  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1913-7-20 4384 Humboldt near Berry's; Northern Coast Ranges, Redwood Creek 304 Comment
  CDA9703  Clarkia rubicunda D. G. Kelch 2007-7-25 7 .507 Humboldt Along Hwy 299 between Lord-Ellis Summit and Hwy 96. Comment
  JEPS17215  Claytonia cordifolia Joseph P. Tracy 1932-6-15 10583 Humboldt ridges e Corral Prairie; Trinity Summit 1828 Comment
  HSC33074  Claytonia exigua subsp. exigua Thomas W. Nelson, Jim Ackerman 1974-5-14 1263 Humboldt Beside the old Samoa-Crannel railbed N of Samoa, along the Mad River Slough Comment
  HSC99412  Claytonia parviflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 61 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  HSC70655  Claytonia perfoliata Gail Newton 1980-7-14 1531 Humboldt Near Deadman Ridge 1097 Comment
  HSC40905  Claytonia perfoliata subsp. intermontana J. O. Sawyer 1970-4-24 2191 Humboldt Along FS Rd. 7N04 at Cedar Creek below Groves Prairie Comment
  HSC101983  Claytonia rubra M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 880 Humboldt Patterson Meadows 1566 Comment
  HSC39941  Claytonia rubra subsp. depressa Linda M. Barker 1976-2-22 1316 Humboldt 3 mi. W of Arcata Comment
  HSC32145  Claytonia rubra subsp. rubra D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5610 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC98515  Claytonia rubra subsp. rubra Cara Witte 2007-5-8 6 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  CAS-BOT-BC443886  Claytonia sibirica Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek Comment
  CAS-BOT-BC443903  Claytonia sibirica A. A. Heller 1937-6-10 16274 Humboldt At Bishop Pine Lodge, 3 miles north of Trinidad on U. S. Highway #101. Comment
  RSA117685  Claytonia sibirica S. S. Tillett 1956-7-3 600 Humboldt Near Foundera Tree Grove, just S of Dyerville. Comment
  RSA67628  Claytonia sibirica P. A. Munz 1951-7-15 16549 Humboldt 5 miles N of Willow Creek 305 Comment
  SD90249  Claytonia sibirica Benjamin C. Stone 1952-6-19 112 Humboldt Humboldt Redwoods State Park; by Founders' Tree 152 Comment
  HSC24331  Claytonia washingtoniana C. E. Fellows 1971-6-7 453 Humboldt 0.2 mi. E of RR track on West End Rd., above the Mad River Comment
  CAS-BOT-BC92597  Clematis ligusticifolia Carl D. Duncan 1920-9-21 314 Humboldt On floor of Hoopa Valley. Comment
  JEPS61596  Clintonia andrewsiana Lincoln Constance 1934-5-31 752 Humboldt South Fork Eel River, along n side of Bull Creek, w boundary of park to Grasshopper Peak (Squaw Creek) Road Bull Creek; Bull Creek Region, South Fork Eel River, Bull Creek Comment
  JEPS61594  Clintonia andrewsiana W. L. Jepson 1932-7-29 16444 Humboldt Van Duzen River, Grizzly Flat Van Duzen River; , Grizzly Flat Comment
  SEINET12046245  Clintonia andrewsiana K. S. Erdman 1970-1 4796 Humboldt Cal-Barrow Road, 3mi E of US101 at boundary of Prairie Creek State Park (Redwood National Park) Comment
  SEINET8056110  Coincya monensis Unknown 1997-2-13 1 Humboldt Eureka Quad Comment
  UC26602  Collinsia corymbosa Schmidt Humboldt Eureka? Comment
  BLMAR639  Collinsia grandiflora Jennifer Wheeler 2011-6-21 639 Humboldt Lacks Creek, Pine Ridge Road 1158 Comment
  JEPS26342  Collinsia grandiflora Joseph P. Tracy Jan 1917 4777 Humboldt Eureka Comment
  UC41805  Collinsia grandiflora Harley P. Chandler May 1901 1251 Humboldt Redwood Belt; North Coast Ranges 457 Comment
  UC727690  Collinsia grandiflora Milo S. Baker 1946-6-15 11481 Humboldt Horse Mtn Rd at Ski Lodge Ski Lodge 1219 Comment
  HSC56465  Collinsia greenei Griswold, Butler 1979-7-12 7270 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  RSA30612  Collinsia linearis Lincoln Constance, R. C. Rollins 1942-5-12 2888 Humboldt Klamath River 10 miles northeast of Weitchpec. 122 Comment
  HSC20605  Collinsia parviflora J. P. Tracy 1933-6-13 12567 Humboldt Hoopa Mtn., near summit on rd. from Hoopa westward to Bair's 1067 Comment
  UCR45409  Collinsia sparsiflora var. sparsiflora Barry Silver 1986-4-23 519 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  UC198584  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1916-5-2 4685 Humboldt Northern Coast Ranges, Eureka, lower slopes of Buck Mountain Buck Mountain; Northern Coast Ranges, Eureka, Buck Mountain 762 Comment
  UC1197856  Collomia grandiflora Joseph P. Tracy 1933-8-30 13051 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC1197854  Collomia grandiflora Joseph P. Tracy 1911-7-10 3498 Humboldt near Willow Creek (hillslopes at w side of Trinity River); Northern Coast Ranges 304 Comment
  UC1222736  Collomia grandiflora Joseph P. Tracy 1950-7-6 19029 Humboldt 3 mi s Burr Valley; Sprosten's Place 1066 Comment
  HSC56008  Collomia heterophylla Overton, Butler 1979-7-31 11489 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  HSC97480  Collomia heterophylla Cara Witte 2007-5-31 146 Humboldt Off National Forest 1. Near Board Camp Mountain. Approximately 4 miles south of Brays Opening and 1/2 west of road. 1489 Comment
  POM270917  Collomia heterophylla S. K. Harris 1942-6-12 1386 Humboldt Fickle Hill Road to Boynton Prairie, SN 2 E. 600 Comment
  SEINET3479162  Collomia heterophylla S. K. Harris 1942-6-12 Humboldt East of Birds Nest (added later by Bill Schmidt), East of Birds Nest (added later by Bill Schmidt), 4 miles east, Fickle Hill Road to Boynton Prairie Comment
  UC1197848  Collomia heterophylla Joseph P. Tracy 1914-5-14 4461 Humboldt Fort Seward Northern Coast Region 121 Comment
  UC133646  Collomia heterophylla Joseph P. Tracy 1909-7-31 3044 Humboldt in woods on hillside Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC97228  Collomia tinctoria Kiera A. Freeman, Heather J. Perry 2007-6-11 6 Humboldt 14.1 mi. S of Hwy. 299 on NF1 1372 Comment
  HSC97575  Collomia tinctoria Cara Witte 2007-5-29 138 Humboldt Along National Forest 1 near Kinsey Ridge. 1/2 mile south of cattle guard. 1369 Comment
  HSC102099  Collomia tracyi M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1002 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC978533  Collomia tracyi Joseph P. Tracy 1927-6-12 8161 Humboldt in slide rock Northern Coast Ranges, Horse Mountain 1066 Comment
  CHSC31328  Conium maculatum Mark Stopher 1980-6-4 91 Humboldt Along disturbed roadside of Hwy 101 near Elk River s of Eureka. 1 Comment
  UC902062  Convolvulus arvensis Joseph P. Tracy 1949-7-31 18400 Humboldt Willow Creek Trinity River Valley 152 Comment
  NY643138  Convolvulus arvensis H. P. Chandler 06 1901 1463 Humboldt Klamath River 365.8 Comment
  UC165028  Conyza canadensis J. P. Tracy 1906-8-18 2540 Humboldt immediate vicinity Eureka 0 Comment
  HSC45026  Conyza canadensis R. Sutherland 1976-8-19 7 .19876 Humboldt 259 Comment
  CHSC110735  Coptis laciniata Dean Wm. Taylor 2011-5-4 21115 Humboldt Vicinity of Dinsmore; Forest Road 1N30 (Bick Mountain Road) about 0.5 miles SE from junction with Highway 36 737 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
  UC14966  Corallorhiza maculata Harley P. Chandler June, 1901 1395 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC45234  Corallorhiza maculata Thomas W. Nelson, Jane P. Nelson 1977-7-1 3569 Humboldt N side of ridge between Bear Creek & Blanket Creek 1524 Comment
  UC56317  Corallorhiza maculata Joseph Burtt Davy 1899-6-11 5421 Humboldt Hubbard's to Elk Prairie Comment
  UC14973  Corallorhiza mertensiana Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5621 Humboldt Bald Mt. North Coast Ranges Comment
  JEPS6033  Cordylanthus maritimus subsp. palustris Joseph P. Tracy 1938-7-15 16064 Humboldt borders of salt marsh at Fields Landing, around Humboldt Bay Humboldt Bay; Northern Coast Region 3 Comment
  UC1191855  Cordylanthus maritimus subsp. palustris Malcolm A. Nobs and S. Galen Smith 1949-8-3 1200 Humboldt ca 2 mi n Eureka (marshes bordering bay); Humboldt Bay Comment
  RSA21672  Cordylanthus tenuis subsp. viscidus Carl B. Wolf 1937-8-13 9225 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  RSA43897  Cordylanthus tenuis subsp. viscidus H. M. Pollard 1947-8-28 s.n. Humboldt Near old placer mine, north of Forest Service Station, Orleans. Comment
  CAS-BOT-BC101145  Corethrogyne filaginifolia Joseph P. Tracy 1936-8-17 15157 Humboldt Arcata Bottom 15 Comment
  RSA46899  Cornus californica Doris K. Kildale 1925-9-27 1370 Humboldt Alton - Van Duzen River. 30 Comment
  CAS-BOT-BC209863  Cornus nuttallii John McLaren 1920-9-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC212015  Cornus nuttallii Doris K. Kildale 1928-5-19 5152 Humboldt Chalk Mountain Comment
  SEINET12137714  Cornus nuttallii F. H. Utech 1988-1 88 -278 Humboldt along CA 36 from Bridgeville enroute to Dinsmore, bluff above Van Duzen River 800 Comment
  UCSB24633  Cornus nuttallii Jensen, Karen 1965-4-15 Humboldt 1 km. west of Hwy. 101 by Miranda turnoff 91 Comment
  RSA0019453  Cornus occidentalis C. B. Wolf 1937-8-13 9251 Humboldt North Coast Range, 11 mi. E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  HSC100454  Cornus pubescens Carl C. Marshall Jun 1886 322 Humboldt Mad River. 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
  HSC98742  Cornus sericea subsp. occidentalis Cara Witte 2007-6-27 377 Humboldt Forest Service Road 6N08. Friday Ridge Road. Approximately 2 miles south of intersection with 5N09. 1474 Comment
  HSC41000  Cornus sericea subsp. sericea J. O. Sawyer 1975-10-17 2710 Humboldt S slopes of N Trinity Mtn. Comment
  UC1011081  Corylus californica Emanuel Fritz 1941-10-4 8610 Humboldt Van Duzen River 91 Comment
  UC1197937  Corylus californica Joseph P. Tracy 1946-8-25 17640 Humboldt Table Bluff, foot of N slope along Hookton Road 9 Comment
  OBI20563  Corylus cornuta subsp. californica Joseph P. Tracy 1946-8-25 17639 Humboldt Along Hookton Rd Comment
  UCD130903  Cotula coronopifolia H. E. Parks 1941-9-1 24211 Humboldt Little River State Park. Comment
  UC249631  Crassula aquatica Joseph P. Tracy 1921-4-24 5446 Humboldt S. Fork Eel R., Phillipsville Flat Northern Coast Ranges, S. Fork Eel R., Phillipsville Flat 91 Comment
  HSC26921  Crepis capillaris Brad Klipfel 1973-7-24 221 Humboldt Arcata Comment
  RSA32733  Crepis capillaris A. A. Heller 1923-7-9 13777 Humboldt Near Blue Lake, 5 miles from Arcata. Comment
  HSC76217  Crepis pleurocarpa Overton, Butler 1979-7-24 9717 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  SEINET2145774 Image available Crepis pleurocarpa Unknown 1933-7-25 12826 Humboldt Horse Mountain 1430 Comment
  UC1223025  Crepis pleurocarpa Joseph P. Tracy 1947-7-9 17846 Humboldt Horse Mountain; top 1432 Comment
  HSC44131  Crepis pleurocarpa Thomas W. Nelson, Jane P. Nelson 1977-7-4 3599 Humboldt Along old trail N of Alder Spring 1555 Comment
  CAS-BOT-BC290909  Crepis setosa Henry M. Pollard 1948-8-8 s.n. Humboldt Between Orleans and Camp Creek Comment
  UC1199228  Crocidium multicaule Joseph P. Tracy 1918-5-1 4911 Humboldt top of Lawrence Creek Hill; Kneeland Prairie, Lawrence Creek Hill 762 Comment
  HSC91878  Crocosmia X crocosmiiflora E. Mackey Humboldt Patrick's Point State Park Comment
  HSC46059  Crocosmia X crocosmiiflora Catherine Chin 1978-8-5 103 Humboldt Arcata, at A and 11th Sts. 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
  RSA285966  Crocosmia X crocosmiiflora T. C. Fuller 1968-7-30 17446 Humboldt Northwest corner of overpass of Highway 1 freeway to Garberville, 1 mile south of Fields Landing Comment
  HSC3567  Cryptantha affinis H. E. Parks, J. P. Tracy 1934-6-27 11059 Humboldt Grouse Mtn. 1433 Comment
  UC175790  Cryptantha intermedia Joseph P. Tracy 1911-7-8 3453 Humboldt near Mouth of Willow Creek; Northern Coast Ranges, Valley Of Trinity River 152 Comment
  HSC78612  Cryptantha leiocarpa L. P. Janeway, Amy Eisenberg 1984-4-24 743 Humboldt On N Spit of Humboldt Bay, SE side of intersection of Samoa and Fairhaven Rds. and E of the Willow patch 3 Comment
  UC1222272  Cryptantha milobakeri Joseph P. Tracy 1949-8-11 18469 Humboldt 2 to 6 mi s Grouse Mt. (e of headwaters of Redwood Creek, electric power line southward); Kinsey Ridge 1280 Comment
  UC1222270  Cryptantha torreyana Joseph P. Tracy 1946-6-23 17600 Humboldt se end Kneeland Prairie (near the Dan McBride place) 762 Comment
  HSC102612  Cryptogramma acrostichoides M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1599 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC74218  Cryptogramma acrostichoides M. A. Baker 1980-7-23 3147 Humboldt Near Orleans Mtn. 1859 Comment
  HSC98680  Cuscuta californica Cara Witte 2008-7-2 793 Humboldt National Forest Road 1; 5 miles south of intersection with 5N04. Before cattle guard crossing. 1406 Comment
  HSC57637  Cuscuta occidentalis G. L. Clifton, Griswold 1979-7-25 10796 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC902076  Cuscuta occidentalis Joseph P. Tracy 1949-8-4 18407 Humboldt Mud Springs Trinity Summit 1341 Comment
  HSC36310  Cuscuta salina Karen Burgessen 1973-5-30 Humboldt Near Humboldt Bay at oxidation ponds Comment
  UC562479  Cuscuta subinclusa Joseph P. Tracy 1933-8-6 12960 Humboldt e of Orick (Tomlinson Ranch); Bald Hills 762 Comment
  UC1222262  Cynoglossum grande Joseph P. Tracy 1950-4-20 18617 Humboldt 2 mi. w. Dinsmore's (n.w. slope of Buck Mt.); Buck Mt. Comment
  UC1239625  Cynoglossum grande Joseph P. Tracy 1933-6-13 12564 Humboldt near summit on rd. from Hoopa westward to Bair's (Hoopa Mt.); Hoopa Mt. 1066 Comment
  UC1222260  Cynoglossum occidentale Joseph P. Tracy 1948-8-15 18121 Humboldt on Ridge 2 mi. e. of Grove's Prairie (Trinity Summit Rd.); Trinity Summit 1524 Comment
  UCD60127  Cynosurus cristatus Ray Evans 1956-7-19 s. n. Humboldt 4.5 miles northwest of Petrolia. Comment
  UCD60128  Cynosurus cristatus Malcolm A. Nobs; S. Galen Smith 1949-8-3 1195 Humboldt Southern outskirts of Eureka. Comment
  BLMAR33  Cynosurus echinatus Brad Barr June, 1982 33 Humboldt King range, Lake ridge south facing slope Comment
  CAS-BOT-BC190377  Cynosurus echinatus Ira L. Wiggins 1957-6-21 14142 Humboldt On east side of road, 1 mile south of Garberville. Comment
  HSC47794  Cynosurus echinatus Michael A. Watkins 1978-6-10 14 Humboldt Arcata, E side of 7th St. overpass to Hwy. 101 Comment
  RSA44473  Cynosurus echinatus Henry M. Pollard 1948-7-17 s.n. Humboldt Orleans. Comment
  UCD60186  Cynosurus echinatus Joseph P. Tracy 1950-6-23 18865 Humboldt Dobbyn Creek, 3 miles northeast of Alderpoint. 213 Comment
  RSA91852  Cynosurus echinatus Joseph P. Tracy, H. E. Parks 1933-6-11 12542 Humboldt Near Miranda 152 Comment
  HSC23677  Cyperus eragrostis Tim Baroni 1971-7-5 91 Humboldt 8 mi. E of Petrolia Comment
  HSC37996  Cyperus eragrostis Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  CAS-BOT-BC114268  Cyperus esculentus Henry M. Pollard 1945-9-4 s.n. Humboldt Near Camp Creek, Klamath River Canyon. Comment
  HSC96342  Cyperus esculentus Gordon Leppig 2004-8-25 2195 Humboldt E edge of Eel River at Holmes Flat Comment
  CAS-BOT-BC113831  Cyperus niger var. capitatus Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  CAS-BOT-BC114195  Cyperus strigosus Henry M. Pollard 1945-8-27 s.n. Humboldt Near Orleans, Pond near Harley place. Comment
  HSC55183  Cystopteris fragilis G. L. Clifton, Griswold 1979-8-2 12217 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC98541  Cystopteris fragilis Cara Witte 2008-6-9 704 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1418 Comment
  RSA183569  Cytisus monspessulanus R. I. Bonn 1965-3-19 8 Humboldt 1/2 mi. south of G.P. mill on Samoa Rd. Comment
  HSC98780  Cytisus scoparius var. scoparius Cara Witte 2008-6-27 768 Humboldt Approximately 1/2 mile north of White Oak Opening on National Forest 1. 1242 Comment
  HSC54606  Dactylis glomerata Overton, Butler 1979-7-24 9690 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC9534  Dactylis glomerata D. B. Bader 1963-5-1 46 Humboldt Second of the Clam Beach lagoons, west of Hwy. 101, south end of lagoon on east bank. Comment
  HSC9542  Dactylis glomerata S. R. Johnson 1965-5-10 54 Humboldt 1.0 mi. N of Luffenholtz Beach Comment
  SBBG53086  Dactylis glomerata R. N. Philbrick, J. R. Haller 1976-6-25 6 Humboldt Capetown-Ferndale Rd, NW of Cape Mendocino, ca. 4 mi NW of Bear River at Capetown 457 Comment
  UC1103248  Dactylis glomerata Joseph P. Tracy 1919-8-28 5186 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  HSC40398  Danthonia californica Thomas W. Nelson 1976-7-9 3008 Humboldt S of Mtn. Lassic, (Signal Peak). 1707 Comment
  UCD60985  Danthonia californica E. B. Copeland 1930-6-5 Humboldt Scotia. Comment
  UC1103256  Danthonia californica var. americana Joseph P. Tracy 1925-5-30 7030 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  UCD60969  Danthonia californica var. americana J. T. Mallory 1955-6-7 112 Humboldt North end of Luke Prairie. 350 Comment
  UC526691  Danthonia unispicata Joseph P. Tracy 1926-6-20 7611 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  CAS-BOT-BC420361  Darmera peltata Volney Rattan 1882-1-1 s.n. Humboldt unspecified Comment
  JEPS49583  Darmera peltata W. L. Jepson 1902-6-30 1958 Humboldt Redwood Creek; Berry's Ranch Comment
  HSC12418  Daucus carota D. Santana 1970-10-15 72 Humboldt 11th and A St. in open vacant lot Comment
  UC1197353  Daucus pusillus Harley P. Chandler May, 1901 1154 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 3 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
  UC467723  Delphinium decorum subsp. tracyi Mrs. M. H. Manning 1902-3-31 Humboldt open gravelly place across supply creek <on> west side of road Hupa Comment
  CAS-BOT-BC10312  Delphinium hesperium Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  RSA168927  Delphinium hesperium Joseph P. Tracy 1950-6-23 18875 Humboldt Along Larrabee Creek, 3 miles N of Blocksburg Comment
  JEPS60593  Delphinium hesperium subsp. hesperium Lincoln Constance 1934-5-29 713 Humboldt Upper Look Prairie Bull Creek Region, South Fork Eel River 365 Comment
  HSC25010  Delphinium nudicaule G. N. Bos 1965-5-15 270 Humboldt 2 mi. W of Berry Summit along U.S. 299. 701 Comment
  RSA168928  Delphinium nudicaule Joseph P. Tracy 1950-6-15 18815 Humboldt Mail Ridge, north of Harris 7 miles Comment
  HSC86902  Delphinium patens Terry Hines, Ellen Purcell, N. Williams 1988-5-1 62 Humboldt Titlow Hill Rd., 0.75 mi. from Hwy. 299 625 Comment
  HSC35357  Delphinium trolliifolium A. M. Montalvo, J. D. Ackerman 1975-6-22 490 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36. Comment
  HSC37429  Delphinium trolliifolium B. R. Templeton 1962-5-24 Humboldt W slope of Berry Summit Comment
  RSA20944  Delphinium trolliifolium Carl B. Wolf 1937-6-19 8916 Humboldt N Coast Range, 3 miles NE of Little Van Duzen River on road to Dinsmores. 762 Comment
  UC503029  Delphinium trolliifolium Joseph P. Tracy 1931-4-19 9334 Humboldt hillside near Alton; Northern Coast Ranges 91 Comment
  RSA10043  Deschampsia beringensis Joseph P. Tracy 1927-7-16 8257 Humboldt Around Humboldt Bay. Mouth of Elk River. 6 Comment
  HSC9586  Deschampsia cespitosa G. N. Bos 1965-5-15 255 Humboldt 8 mi. W of Berry Summit, along Hwy. 299 762 Comment
  UCD61160  Deschampsia cespitosa Joseph P. Tracy 1942-6-15 17128 Humboldt Englewood, Natural prairie, near Redcrest resort. 91 Comment
  CAS-BOT-BC194338  Deschampsia cespitosa subsp. beringensis Joseph P. Tracy 1927-7-16 8257 Humboldt Mouth of Elk River, around Humboldt Bay, just south of Eureka 6 Comment
  CAS-BOT-BC192545  Deschampsia cespitosa subsp. holciformis J. B. Davy; W. C. Blasdale 1899-5-1 6214 Humboldt Eureka Comment
  HSC98875  Deschampsia danthonioides Cara Witte 2007-5-23 99 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1.5 miles south of intersection with 5N04 and 4N32E. 1402 Comment
  CDA31675  Deschampsia elongata T. C. Fuller 1962-8-6 9363 Humboldt Near Hwy 299 to Blue Lake, 2.6 miles east of Bald Mtn. Summit Rd., 1 miles west of Green Point School. 0 Comment
  HSC26779  Deschampsia elongata Thomas W. Nelson 1971-5-31 463 Humboldt 915 Comment
  HSC98123  Deschampsia elongata Cara Witte 2007-6-19 292 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1289 Comment
  HSC99038  Deschampsia elongata Cara Witte 2007-6-13 263 Humboldt Along Forest Service Road 5N04. Near spring by Grouse Mountain. 1583 Comment
  UC38021  Deschampsia elongata Harley P. Chandler June, 1901 1331 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Valley, Hupa Indian Reservation 304 Comment
  HSC99586  Dianthus armeria K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 251 Humboldt Near North Trinity Mtn, Government Trail, near Box Camp, Six Rivers National Forest. 1387 Comment
  HSC95828  Dicentra formosa Steven Lee 2004-3-30 7 Humboldt Arcata Community Forest, 100 ft. E of junction of Granite Ave. and Jolly Giant Creek Rd. Comment
  HSC65838  Dicentra formosa subsp. oregana Gail Newton 1980-6-16 182 Humboldt Near Onion Mtn. 204 Comment
  JEPS64151  Dichelostemma capitatum Milo S. Baker 137 Humboldt South Fork Yager Creek Comment
  HSC99667  Dichelostemma capitatum subsp. capitatum Steven Lee 2004-4-25 24 Humboldt South Fork Rd. from Hwy. 299 to Co. Rd. 341, 1/8 mi. down river access trail at end of rd. Comment
  HSC102206  Dichelostemma ida-maia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1121 Humboldt Andy's Camp 1564 Comment
  HSC24401  Dichelostemma ida-maia J. O. Sawyer 1970-6-24 2216 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC3031  Dichelostemma ida-maia D. E. Anderson 1965-5-15 3710 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek, above Trinity River Comment
  SBBG11069  Dichelostemma ida-maia D. E. Breedlove 1961-7-4 649 Humboldt 10.9 mi W of Willow Crk on US Hwy 299 822 Comment
  SEINET200655 Image available Digitaria ischaemum Joseph P. Tracy 1950-9-22 19371 Humboldt Klamath River near slate Creek below Orleans 8 miles. Roadside. 122 Comment
  UC1145032  Digitaria ischaemum Joseph P. Tracy 1950-9-22 19371 Humboldt 8 mi below Orleans (near Slate Creek, Klamath River); Klamath River, near Slate Creek 121 Comment
  SEINET8733128 Image available Diplacus aurantiacus H. E. Parks, S. T. Parks 1951-1 s.n. Humboldt Along bay shore near landing. Trinidad. Comment
  RSA520552  Disporum hookeri var. hookeri Michael A. Hanson 1990-5-22 83 Humboldt Between Weitchpec and Orleans on Bluff Creek Road, 4.6 miles (7.4) west of highway 96. Comment
  UC1197653  Disporum smithii J. P. Tracy 1906-4-22 2417 Humboldt immediate vicinity of Eureka 0 Comment
  JEPS55589  Disporum smithii W. Roderick 1961-6-28 Humboldt 5.4 road mi ne of Weitchpec (Klamath River); Klamath River Comment
  SEINET4170363  Disporum smithii Unknown 1933-5-12 3413 Humboldt Dyerville, South Fork of the Eel River Comment
  UC203975  Dodecatheon hendersonii Joseph P. Tracy 1918-5-28 4947 Humboldt High Prairie on Bald Mountain Northern Coast Ranges, High Prairie on Bald Mountain 1066 Comment
  HSC102078  Dodecatheon jeffreyi M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 980 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  POM252664  Downingia elegans var. corymbosa Joseph P. Tracy 1927-7-17 8270 Humboldt Three Cabins; lower western foothills of Chaparral Mt.; North Coast Ranges. 457 Comment
  CAS-BOT-BC401535  Drosera rotundifolia Carl B. Wolf 1927-8-22 778 Humboldt Big Lagoon Comment
  HSC38525  Drymocallis glandulosa D. E. Anderson, J. P. Smith 1971-6-18 1071 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  HSC63033  Drymocallis glandulosa J. P. Smith, J. O. Sawyer 1973-5-12 6668 Humboldt 2 mi. from Redwood Creek on Hoopa Rd. Comment
  CAS-BOT-BC159614  Drymocallis glandulosa var. glandulosa Doris K. Kildale 1926-5-9 1993 Humboldt Kneeland Prairie 762 Comment
  HSC57850  Drymocallis glandulosa var. reflexa G. L. Clifton 1979-7-31 11357 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC75458  Drymocallis lactea var. lactea J. O. Sawyer 1980-7-18 3585 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC89449  Dryopteris arguta P. A. Daly 1984-5-8 16 Humboldt Trinidad Head 61 Comment
  CAS-BOT-BC70871  Dryopteris arguta Doris K. Kildale 1926-7-22 2415 Humboldt near Canyon Park Comment
  HSC1033  Dryopteris arguta W. R. Supernaugh, Jr. 1964-12-15 16 Humboldt 400 yards S of Trinidad Harbor, off old logging rd. above beach 12 Comment
  JEPS70196  Dryopteris arguta Robert J. Rodin 1969-8-16 8368 Humboldt near Carlotta (near Van Duzen River) Comment
  UC811824  Dryopteris arguta George Neville Jones 1936-3-22 8672 Humboldt near Garberville Comment
  POM118351  Dryopteris expansa Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
Read comments
Dec 31 2015
  UC1239775  Dryopteris expansa Joseph P. Tracy 1931-3-15 9286 Humboldt on Van Duzen River Strong's Station; Northern Coast Ranges 91 Comment
  CAS-BOT-BC113802  Dulichium arundinaceum Joseph Prince Tracy 1938-9-25 16173 Humboldt Dense masses in shallow water, Bald Mountain, at Lake Prairie. 1066 Comment
  HSC7296  Dulichium arundinaceum J. P. Tracy 1938-9-25 16173 Humboldt Bald Mtn., 'Lake Prairie 1067 Comment
  HSC102220  Eleocharis acicularis var. acicularis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1136 Humboldt Patterson Meadows 1555 Comment
  HSC7343  Eleocharis pachycarpa D. E. Anderson 1961-9-9 1785 Humboldt Along Hwy. 101 Comment
  HSC7346  Eleocharis parvula D. E. Anderson 1961-9-9 1791 Humboldt Along S end of Hwy. 101 causeway over Big Lagoon Comment
  UC249740  Eleocharis parvula Joseph P. Tracy with H. E. Parks 1924-8-3 6744 Humboldt Stone Lagoon 6 Comment
  UCR63392  Eleocharis pauciflora H. E. Parks 1934-1 5275 Humboldt North Coast, Spruce Cove, Trinidad Comment
  HSC62979  Elodea canadensis David Wheeler 1979-5-16 113 Humboldt Humboldt State University Campus, stream just below Fern Lake, E of the handball courts. Comment
  HSC38635  Elymus X vancouverensis D. E. Anderson, J. P. Smith 1971-6-28 - 1260 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  UCD61884  Elymus glaucus P. B. Kennedy 1923-8-2 Humboldt Near top of grade - Bluff Creek to Arcata. Comment
  UC526791  Elymus glaucus subsp. virescens Joseph P. Tracy 1927-6-26 8215 Humboldt Stone Lagoon Northern Coast Region (bluffs facing ocean) 6 Comment
  HSC9726  Elymus mollis subsp. mollis J. W. Johnson 1962-4-29 1297 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata. Comment
  HSC9737  Elymus mollis subsp. mollis J. R. Woodside 1963-5-3 17 Humboldt 1.25 miles N of Fairhaven. Comment
  HSC97932  Elymus multisetus Cara Witte 2007-6-14 271 Humboldt Along National Forest 1. Near Kinsey Ridge and cattle guard. 3 miles north of intersection with 4N09. 1393 Comment
  UC1103293  Elytrigia repens Joseph P. Tracy 1944-7-1 17477 Humboldt Eureka 30 Comment
  UC1103295  Elytrigia repens Joseph P. Tracy 1925-9-13 7267 Humboldt Eel River North Coast Ranges (mouth, on river bank) 6 Comment
  RSA257605  Empetrum eamesii subsp. hermaphroditum G. D. Wallace 1975-8-22 11486 Humboldt NW of Trinidad, on NW facing exposure of Megwil Point, just N of Elk Head, N of College Cove, sand bluffs in sight of Green Rock to the NW. Comment
  JEPS43904  Epilobium brachycarpum W. L. Jepson 1936-8-8 17861 Humboldt Richardson Grove South Fork Eel River Comment
  HSC99054  Epilobium brachycarpum Cara Witte 2008-7-30 979 Humboldt National Forest 1. 2 miles north of intersection with Forest Service Road 4N09. 1267 Comment
  UC1198483  Epilobium brachycarpum Joseph P. Tracy 1937-7-19 15454 Humboldt lower foothills of Buck Mountain Northern Coast Ranges (nw slope) 762 Comment
  UC583055  Epilobium brachycarpum P. A. Munz 1936-8-13 14381 Humboldt 10 mi w Willow Creek Comment
  UC668303  Epilobium campestre Joseph P. Tracy 1938-7-5 16004 Humboldt 5 mi e Carlotta; Strong's District School House 45 Comment
  BLMAR386  Epilobium canum subsp. latifolium Jennifer Anthony-Wheeler 2004-9-1 386 Humboldt Horse Mtn, Growing along titlow hill road 18+ miles 1584 Comment
  HSC102032  Epilobium ciliatum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 935 Humboldt Patterson Meadows 1555 Comment
  CDA38081  Epilobium ciliatum T. C. Fuller 1958-6-17 17 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC32948  Epilobium ciliatum subsp. ciliatum Thomas W. Nelson, James Nelson 1973-5-28 958 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1122558  Epilobium ciliatum subsp. ciliatum H. L. Person 1932-7-16 Humboldt hwy n Trinidad; Rock Point Quadrangle Comment
Read comments
Aug 3 2007
  HSC12762  Epilobium ciliatum subsp. ciliatum M. J. Athey 1970-10-12 17 Humboldt Between Moonstone and Luffenholtz beaches on old Rd. to Trinidad Comment
  JEPS39330  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1916-9-5 4768 Humboldt 4 mi above river mouth (i.e., near Weott); Northern Coast Ranges, South Fork of Eel River 60 Comment
  HSC103280  Epilobium ciliatum subsp. glandulosum John McRae 2012-9-7 1270 Humboldt Six Rivers National Forest, Lower Trinity District, Forest Service Road 5N10, at the crossing of Willow Creek. 1294 Comment
  UC588182  Epilobium ciliatum subsp. watsonii H. E. and S. T. Parks July, 1937 24050 Humboldt Spruce Cove Trinidad (borders of cultivated areas) 64 Comment
  UC1198501  Epilobium densiflorum Joseph P. Tracy 1914-6-28 4517 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC54670  Epilobium foliosum Overton, Butler 1979-7-25 9908 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  SEINET200781  Epilobium foliosum Joseph P. Tracy 1930-6-21 8786 Humboldt Northern Coast Ranges; Larrabee Valley 701 Comment
  HSC55123  Epilobium glaberrimum subsp. fastigiatum G. L. Clifton, Terry Griswold 1979-8-1 11923 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  UC562502  Epilobium glaberrimum subsp. glaberrimum Joseph P. Tracy 1936-8-7 15102 Humboldt head of Little Hors-Linto Creek Trinity Summit 1524 Comment
  UC144091  Epilobium hallianum Joseph P. Tracy 1908-6 2753 Humboldt near pond above mouth of Little Van Duzen (nw slope of mt.); Northern Coast Ranges, Buck Mountain 762 Comment
  HSC67190  Epilobium minutum Thomas W. Nelson, James Nelson 1980-6-10 5426 Humboldt Along NE side of Red Mtn. 1433 Comment
  HSC70924  Epilobium minutum R. York 1980-5-18 574 Humboldt Near Black Mtn 792 Comment
  UC562515  Epilobium oregonense Joseph P. Tracy 1935-7-26 14260 Humboldt Water Dog Lakes Trinity Summit (meadows) 1828 Comment
  UC249622  Epilobium septentrionale Joseph P. Tracy 1921-10-16 5974 Humboldt mouth of S. Fork Trinity R.; Northern Coast Ranges, S. Fork Trinity R. 152 Comment
  CAS-BOT-BC58018  Equisetum Doris K. Kildale 1929-3-16 6939 Humboldt Bug Creek - Chaparral Mt. Comment
  UC1239785  Equisetum arvense Joseph P. Tracy 1949-6-25 18357 Humboldt Box Camp Meadow Trinity Summit 1463 Comment
  HSC100123  Equisetum laevigatum Thomas W. Nelson, Jane Nelson 1977-5-30 3406 Humboldt Back bay of Mad River at Anderson's Ford 640 Comment
  RSA53858  Equisetum laevigatum Henry M. Pollard 1946-8-27 s.n. Humboldt South side of Klamath River, near Boyce Creek Orleans region Comment
  HSC892  Equisetum telmateia subsp. braunii J. W. Johnson 1962-3-31 1420 Humboldt Arcata, along Lanphere lane Comment
  SEINET200658 Image available Eragrostis hypnoides Joseph P. Tracy 1931-9-7 9663 Humboldt Damp sand bar along river Trinity River Valley at Willow Creek 152 Comment
  UC526901  Eragrostis mexicana subsp. virescens Joseph P. Tracy 1931-9-7 9653 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UCD64457  Eragrostis pectinacea Collector Unknown 1946-11 Humboldt Orleans. Comment
  UCD117420  Erica lusitanica T. C. Fuller 1961-3-22 5938 Humboldt N. slope Humboldt Hill, Eureka. Comment
  HSC74435  Erigeron aliceae Gail Newton 1980-8-10 2065 Humboldt Near Blake Mountain 1707 Comment
  JEPS21932  Erigeron foliosus var. mendocinus Joseph P. Tracy 1930-7-4 8829 Humboldt Bull Creek to Mattole Road (near summit of ridge) 762 Comment
  RSA167385  Erigeron foliosus var. mendocinus Joseph P. Tracy 1951-7-24 19625 Humboldt Blue Slide, on Van Duzen River 91 Comment
  UC581724  Erigeron foliosus var. mendocinus Joseph P. Tracy 1930-7-4 8829 Humboldt Bull Creek to Mattole Road (near the summit of ridge) 762 Comment
  HSC26355  Erigeron glaucus T. O. Osborne 1970-9-16 32 Humboldt Trinidad Bay, Prisoner Rock Comment
  UC594158  Erigeron glaucus S. K. Harris 1936-6-15 3380 Humboldt Trinidad Head. Comment
  CAS-BOT-BC295172  Erigeron inornatus Joseph P. Tracy 1933-8-6 12935 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC295174  Erigeron inornatus Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  UC127577  Erigeron philadelphicus var. philadelphicus Harley P. Chandler 1901-6-1 1402 A Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  CAS-BOT-BC300281  Erigeron strigosus var. strigosus Harley P. Chandler 1901-6-1 1402 Humboldt North Coast Ranges. Klamath River 243 Comment
  CAS-BOT-BC224254  Eriodictyon californicum L. R. Abrams 1918-6-17 7208 Humboldt Hoopa to Briars Resort on road to Korbel Comment
  HSC54216  Eriogonum compositum Griswold, Butler 1979-7-12 7274 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC55063  Eriogonum compositum G. L. Clifton, Griswold 1979-7-31 11625 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC76606  Eriogonum compositum Teresa Prendusi 1981-7-21 280 Humboldt Near Whiteys Peak 1646 Comment
  JEPS57408  Eriogonum compositum var. compositum L. R. Heckard with T. I. Chuang 1968-7-5 1989 Humboldt 4 1/2 mi n along Mail Ridge road Harris Road (e of Garberville) Comment
  CAS-BOT-BC259148  Eriogonum latifolium Marcus E. Jones 1931-7-12 28806 Humboldt Alton Comment
  CDA22611  Eriogonum latifolium T. C. Fuller 1961-9-28 7050 Humboldt Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  HSC26656  Eriogonum latifolium J. P. Smith 1971-10-6 4938 Humboldt End of Murray Rd. in McKinleyville. Comment
  JEPS95019  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
  POM232031  Eriogonum latifolium I. L. Wiggins 1930-7-11 4680 Humboldt Near Samoa Comment
  SBBG53807  Eriogonum latifolium C. M. Hoak 1931-7-14 Humboldt above Eureka Comment
  CAS-BOT-BC259286  Eriogonum lobbii Dave Imper 1985-7-30 s.n. Humboldt Six Rivers National Forest. N of Orleans Mountain 1737 Comment
  JEPS57407  Eriogonum luteolum L. R. Heckard with T. I. Chuang 1968-7-5 1987 Humboldt 4.3 mi n, on Mail Ridge road Harris road Comment
  UC54741  Eriogonum nudum var. nudum P. E. Goddard 1901-7-12 75 Humboldt Hupa Comment
  RSA21586  Eriogonum nudum var. nudum Carl B. Wolf 1937-8-13 9231 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  UC1198145  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1947-7-9 17866 Humboldt 3 mi ne, on Lord-Ellis Road at Mankins Ranch Blue Lake; Mankins Ranch 304 Comment
  HSC43079  Eriogonum umbellatum var. argus Brad Klipfel 1973-7-31 224 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1225801  Eriogonum umbellatum var. argus Joseph P. Tracy 1947-7-5 17781 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UC55396  Eriogonum umbellatum var. argus Mrs. M. H. Manning 1900-1 Humboldt Hoopa Comment
  UC55393  Eriogonum umbellatum var. dumosum Harley P. Chandler June 1901 1495 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  HSC36636  Eriophyllum lanatum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1906 Humboldt End of road to Pine Mtn. Comment
  CAS-BOT-BC301010  Eriophyllum lanatum var. achilleoides L. R. Abrams 1916-7-11 6065 Humboldt Mouth of Grizzly Creek on Van Duzon [Duzen] River Comment
  CAS-BOT-BC301018  Eriophyllum lanatum var. achilleoides Alice Eastwood 1921-7-21 10662 Humboldt Vanduzen [Van Duzen] River Comment
  JEPS34590  Eriophyllum lanatum var. achilleoides W. L. Jepson 1921-8-11 9417 Humboldt Big Lagoon Comment
  UC302292  Eriophyllum lanatum var. arachnoideum Joseph P. Tracy 1926-6-18 7607 Humboldt Humboldt Hill Northern Coast Region, around Humboldt Bay, Humboldt Hill 152 Comment
  HSC5585  Eriophyllum lanatum var. lanceolatum Lincoln Constance, R. C. Rollins 1942-5-12 2890 Humboldt Klamath River, 12 mi. N of Weitchpec 122 Comment
  UC1198961  Erodium botrys Joseph P. Tracy 1933-5-20 12239 Humboldt s of point of Cape Mendocino; Cape Mendocino 3 Comment
  HSC101975  Erysimum capitatum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 872 Humboldt Patterson Meadows 1566 Comment
  HSC36913  Erysimum capitatum var. capitatum John Rehling, Robert M. Specht 1976-2-20 111 Humboldt Along Kneeland Rd., halfway to Bridgeville Comment
  HSC57666  Erysimum capitatum var. capitatum G. L. Clifton, Terry Griswold 1979-7-25 10849 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  CHSC93444  Erysimum menziesii Vernon H. Oswald 2000-4-3 9911 Humboldt Near the junction of New Navy Base Rd. and the road to Fairhaven on the North spit of Humboldt Bay. 9 Comment
  CAS-BOT-BC153742  Erythranthe alsinoides Volney Rattan 1882-6-1 s.n. Humboldt Near Kneeland Pr., Coast Mts. North of San Francisco Bay Comment
  SJSU2542  Erythranthe dentata H. L. Buckalew 1962-6-26 Humboldt Prairie Cr Redwoods State Park Comment
  SD92948  Erythranthe grandis W. Bertsch 1953-7-30 228 Humboldt Highway 100 near Arcata Comment
  SEINET14045671 Image available Erythranthe nasuta Joseph P. Tracy 1914-1 4457 Humboldt Plants of Northern Coast Ranges of California; Fort Seward. 122 Comment
  SEINET8229973  Erythranthe nasuta Joseph P. Tracy 1920-5-18 5379 Humboldt South Fork Eel River; from South Fork to Scotia; 4 miles above Dyerville. 61 Comment
  HSC15487  Erythronium citrinum var. citrinum R. A. Rasp 1964-4-5 29 Humboldt 7 mi. past Hoopa on Willow Creek Rd. Comment
  HSC15488  Erythronium citrinum var. citrinum E. C. Murczek 1964-4-4 29 Humboldt 8 mi. N of Hoopa Comment
  JEPS61877  Erythronium revolutum Ethel Tracy 1907-1 Humboldt Kneeland Prairie Comment
  CAS-BOT-BC403032  Eschscholzia californica Carl B. Wolf 1937-6-14 8824 Humboldt North Coast Range, Kneeland Prairie 822 Comment
  CAS-BOT-BC403034  Eschscholzia californica Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC23676  Eschscholzia californica Tim Baroni 1971-7-6 111 Humboldt 1 mi. S of Ferndale on the Mattole Rd. Comment
  HSC98456  Eschscholzia californica D. E. Anderson 1961-9-2 1769 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  UC668058  Eschscholzia californica Joseph P. Tracy 1938-6-17 15956 Humboldt s point of the Cape (near ocean shore); Cape Mendocino 3 Comment
  POM182421  Eucephalus tomentellus Joseph P. Tracy 1919-9-27 5304 Humboldt Mountain slopes along road between Three Creeks and mouth of Willow Creek. 915 Comment
  UC205151  Eucephalus tomentellus Joseph P. Tracy 1919-9-27 5304 Humboldt Mountain slopes along road between three Creeks and mouth of Willow Creek Willow Creek 914 Comment
  HSC37670  Euchiton gymnocephalus R. Sutherland 1976-8-13 9 .13876 Humboldt Old skid road. 259 Comment
  UC1196541  Euchiton involucratus Joseph P. Tracy 1948-9-26 18232 Humboldt 6 mi se Arcata (at s end of Fickle Hill); Fickle Hill 609 Comment
  CAS-BOT-BC206923  Euonymus occidentalis Joseph P. Tracy 1935-5-24 13823 Humboldt Eureka, 3 miles SE of business district 91 Comment
  UC165805  Euonymus occidentalis var. occidentalis Joseph P. Tracy 1908-6 2866 Humboldt opposite Buck Mt.; Northern Coast Ranges, Van Duzen R. Valley 762 Comment
  JEPS51876  Euphorbia crenulata Lincoln Constance 1934-5-24 646 Humboldt Bull Creek Region; South Fork Eel River 121 Comment
  UC1198971  Euphorbia crenulata Joseph P. Tracy 1919-5-31 5156 Humboldt near Willow Creek (slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 182 Comment
  HSC31736  Euphorbia peplus Donald Spalinger 1974-4-20 16 Humboldt Across from 1756 Ridgewood Dr. 122 Comment
  HSC59575  Euphorbia peplus Rick Lundquist 1979-4-24 37 Humboldt Arcata, lower Church parking lot at E end of 16th St. 46 Comment
  UC1198981  Euphorbia spathulata Joseph P. Tracy 1927-5-30 8096 Humboldt Garberville; Northern Coast Ranges 121 Comment
  UC419045  Eurybia radulina H. E. Parks, J. P. Tracy 1930-9-15 769 Humboldt Kneeland Bald Hills Comment
  UC581784  Eurybia radulina Joseph P. Tracy 1929-10-6 8677 Humboldt Kneeland Prairie, on Butler Valley Road Kneeland Prairie 609 Comment
  CDA30697  Euthamia occidentalis M. K. Beyers, I. Shepardson 2009-9-13 249 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
  UC202856  Euthamia occidentalis Chesnut and Drew 1888-7-21 Humboldt South Fork Mt. Comment
  POM248197  Euthamia occidentalis S. K. Harris, Charlotte Wilder 1938-9-7 879 Humboldt Bars of the Van Duzen River, above Blue Slide Comment
  HSC12021  Fallopia japonica D. Santana 1970-10-15 69 Humboldt 10th and G St. in parking lot Comment
  SEINET200342 Image available Festuca californica J. P. Tracy 1901-6-23 1175 Humboldt Eureka. 0 Comment
  UC180429  Festuca californica Joseph P. Tracy 1913-6-21 4250 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC278814  Festuca occidentalis Alice Eastwood; John Thomas Howell 1937-6-22 4713 Humboldt Near Harris Comment
  HSC70661  Festuca occidentalis Gail Newton 1980-7-14 1544 Humboldt Near Deadman Ridge 1097 Comment
  POM214838  Festuca occidentalis Victor Duran 1933-5-11 3410 Humboldt Van Duzen River, near Bridgeville. Comment
  UC187102  Festuca occidentalis J. P. Tracy 1900-5-22 796 Humboldt immediate vicinity Eureka 0 Comment
  UC187115  Festuca occidentalis Joseph P. Tracy 1911-6-4 3229 Humboldt along Little River, 5 mi from the coast Northern Coast Ranges, Little River 121 Comment
  UC53591  Festuca occidentalis H. P. Chandler 1901-1 1775 a Humboldt Humboldt Bay Comment
  UC71030  Festuca occidentalis Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5653 Humboldt Hoopa Mt. Comment
  CAS-BOT-BC278969  Festuca rubra W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  HSC103065  Festuca rubra J. P. Smith 2014-6-4 13867 Humboldt Big Lagoon County Park 5 Comment
  HSC9972  Festuca rubra H. E. Parks Jun 1935 11072 Humboldt Buck Mtn. Comment
  UCD66392  Festuca rubra Joseph P. Tracy 1938-7-4 15986 Humboldt Valley of South Yager Creek. 762 Comment
  UC1145204  Festuca subulata Joseph P. Tracy 1936-6-9 14903 Humboldt 4 mi se Petrolia; Northern Coast Ranges, Mattole Valley 60 Comment
  HSC9949  Festuca subuliflora L. M. Malloy 1965-5-20 32 Humboldt Old county dump, 5 mi. from Arcata on Fickle Hill Rd. Comment
  UC1145206  Festuca subuliflora Joseph P. Tracy 1948-6-13 18041 Humboldt 7 mi nw Blocksburg; Larrabee Creek 304 Comment
  UCD66490  Festuca subuliflora R. Tofsrud 1949-7-1 Humboldt On road from Scotia to Capetown. Comment
  CHSC68501  Fragaria chiloensis Vernon H. Oswald 1997-4-10 8327 Humboldt Elk Head, north end of Trinidad State Beach. Near the bluffs overlooking the ocean. 30 Comment
  HSC47484  Fragaria chiloensis Sheila Logan 1978-4-7 1 Humboldt Samoa sand dunes, 1/4 mi. N of Coast Guard Station. Comment
  POM231291  Fragaria chiloensis D. D. Keck, Jens Clausen 1935-6-16 3390 Humboldt Mouth of Little River. Comment
  CAS-BOT-BC453517  Fragaria chiloensis John Thomas Howell 1954-4-25 29155 Humboldt Dune Hills, Little River Comment
  CHSC24854  Fragaria vesca A. D. Launer 1976-4-10 1 Humboldt On n roadbank of Church St., ca. 100 yds e of Blocksburg. 472 Comment
  HSC18615  Fragaria vesca J. J. Wagoner 1965-5-1 25 Humboldt 6 mi. W of Willow Creek along Hwy. 299 Comment
  HSC70357  Fragaria vesca M. A. Baker 1980-6-7 1866 Humboldt Near Ammon Creek 732 Comment
  CAS-BOT-BC52737  Frangula californica subsp. californica Carl B. Wolf 1927-8-30 1226 Humboldt 2 mi. s. of Petrolia on the Matole River, near point where road crosses river. Comment
  SBBG26931  Frangula californica subsp. californica D. K. Kildale 1927-7-3 Humboldt Willow Crk flat on Trinity River 152 Comment
  SEINET9354429  Frangula purshiana Unknown 1965-9-30 Humboldt Kneeland Comment
  HSC101453  Frangula purshiana subsp. purshiana Cara M. Witte 2008-7-2 822 Humboldt Board Camp Mountain. Forest Service Rd. 4N38. Approximately 1 mile south of 4N38 and National Forest 1 intersection. 1416 Comment
  SEINET200756  Frasera speciosa Joseph P. Tracy 1917-9-2 4851 Humboldt Grouse Mt. 1524 Comment
  HSC16192  Fraxinus latifolia J. R. Lippincott 1967-7-16 14 Humboldt 1.0mi S of Blue Lake in West End Rd. Comment
  NY42920  Fraxinus latifolia J. B. Walker 1995-4-26 1387 Humboldt Six Rivers National Forest, Hwy 36, 2km W of Cobbs 800 Comment
  RSA171981  Fraxinus latifolia Robert F. Thorne 1957-9-2 18992 Humboldt Burlington State Park, just S of Weott. Comment
  UC249521  Fraxinus latifolia Joseph P. Tracy 1922-5-29 6060 Humboldt South Yager Creek Valley Northern Coast Ranges 762 Comment
  HSC38259  Fritillaria affinis Thomas W. Nelson 1976-4-3 2285 Humboldt Hwy 36 at east end of Swain's Flat Comment
  HSC79480  Fritillaria affinis Kenneth Clark 1980-3-27 561 Humboldt Upper alluvial terraces of S fork Dead Man's Gulch 76 Comment
  SEINET8773683  Fumaria capreolata R. R. Halse 2013-3-28 8767 Humboldt Eureka, at a Texaco station near 3543 Broadway Street (US Hwy 101) and its intersection with McCullens Avenue. 6 Comment
  CAS-BOT-BC422450  Fumaria officinalis Joseph P. Tracy 1949-4-1 18277 Humboldt Eureka 30 Comment
  HSC102634  Galium aparine M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1619 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC1196103  Galium aparine Joseph P. Tracy Jul 16 1930-Jul 19 1930 9048 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  UC594156  Galium aparine S. K. Harris, J. P. Tracy, and H. S. Yates 1936-6-17 3427 Humboldt nw slopes Buck Mountain 822 Comment
  HSC57329  Galium bolanderi Overton, Butler 1979-7-25 9822 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  JEPS6719  Galium bolanderi Joseph P. Tracy 1935-7-29 14339 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  UC602507  Galium bolanderi Joseph P. Tracy 1927-5-15 8043 Humboldt near South Fork; Trinity River Valley 182 Comment
  JEPS52858  Galium californicum subsp. californicum Lauramay T. Dempster and G. L. Stebbins 1963-7-9 3850 Humboldt 6 mi e Bridgeville (on Hwy 36 to Dinsmore, sw-facing slope) 609 Comment
  JEPS52903  Galium californicum subsp. californicum Lauramay T. Dempster and G. L. Stebbins 1963-7-9 3848 Humboldt 2.1 mi w Bridgeville (on road to Eureka, along river, steep s-facing slope); Van Duzen River Comment
  UC1225914  Galium divaricatum Joseph P. Tracy 1946-7-13 17614 Humboldt 5 mi e Carlotta (by old Strong's District School House) 60 Comment
  JEPS52844  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-10-27 3957 Humboldt along stream on road to Madrone Campground Redwood Highway, Richardson Grove Comment
  UC198664  Galium parisiense Joseph P. Tracy 1916-6-19 4710 Humboldt Bosworth's Northern Coast Ranges, Laribee Creek 457 Comment
  UC416659  Galium parisiense Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5684 B Humboldt summit North Coast Ranges, Hoopa Mtn. Range (between Hoopa Val. and Redwood Creek) Comment
  SEINET11117326  Galium parisiense Unknown 1913-1 4083 Humboldt Rogers ranch, below Bridgeville on Van Duzen River, on dry rocky slopes. Altitude 500 ft. Comment
  UC175593  Galium porrigens Joseph P. Tracy 1912-7-21 3767 Humboldt Alton Northern Coast Region 30 Comment
  HSC53836  Galium triflorum Griswold, Butler 1979-7-10 6286 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  RSA44414  Gamochaeta ustulata H. M. Pollard 1948-7-18 s.n. Humboldt Near Orleans. Comment
  UC562620  Gamochaeta ustulata Joseph P. Tracy 1936-5-30 14834 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  HSC56997  Garrya buxifolia Overton, Butler 1979-7-24 9574 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  CAS-BOT-BC188535  Garrya elliptica H. E. Parks 1933-2-1 4287 Humboldt Trinidad, on cliffs near ocean Comment
  UC154051  Garrya elliptica J. P. Tracy 1901-1-27 990 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa Comment
  CAS-BOT-BC182149  Garrya fremontii Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC182174  Garrya fremontii Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. Trail 1371 Comment
  UC1196893  Garrya fremontii Joseph P. Tracy 1947-7-9 17840 Humboldt Horse Mountain 1402 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
  UCSB72516  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
  POM290957  Gastridium phleoides Lyman Benson 1929-7-16 1648 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  UC38566  Gastridium ventricosum Harley P. Chandler 1901-6-1 1506 Humboldt Klamath River; North Coast Ranges, Klamath River 426 Comment
  CAS-BOT-BC56297  Gaultheria ovatifolia R. Bacigalupi; L. Constance; J. P. Tracy; R. Moran; R. L. Rodriguez; S. Carlquist 1951-6-14 3413 Humboldt Meadow at Snow Camp, ridge between Mad River and Redwood Creek, Bald Mountain 1432 Comment
  BLMAR231  Gaultheria shallon Jennifer Anthony-Wheeler 1996-9-26 231 Humboldt King range, growing beside bear creek between Wailaka & Nadelos campground 548 Comment
  CAS-BOT-BC58920  Gaultheria shallon Henry M. Pollard 1948-7-27 s.n. Humboldt Mouth of Red Cap Creek near Orleans Comment
  CHSC24746  Gaultheria shallon G. Strang 1976-4-11 9 Humboldt All along e side of U.S. 101 ca. 2 mi s of Orick. 9 Comment
  HSC22523  Gaultheria shallon David K. Smith 1968-10-26 37 Humboldt Big Lagoon County Park, SW corner of Big Lagoon Comment
  HSC7809  Gaultheria shallon D. A. Shally 1965-5-15 44 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  HSC93253  Gaultheria shallon Gordon Leppig 1998-3-25 726 Humboldt Big Lagoon County Park, bank just E of bog 8 Comment
  RSA249504  Gaultheria shallon R. F. Thorne, Percy C. Everett 1965-8-9 35287 Humboldt Big Lagoon. 3 Comment
  RSA273393  Gaultheria shallon Brad W. Klipfel 1974-9-7 560 Humboldt Horse Mtn. Comment
  HSC75456  Gayophytum diffusum subsp. parviflorum J. O. Sawyer 1980-7-18 3600 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC97977  Gayophytum diffusum subsp. parviflorum Cara Witte 2007-7-8 424 Humboldt Board Camp Mountain. Pack trail 4N26. 1/2 mile from Tri Board Camp intersection. 1536 Comment
  UC1196970  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9070 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC549765  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9051 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountains 1737 Comment
  UC1196960  Gayophytum humile Joseph P. Tracy 1930-7-23 9117 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  POM214929  Gayophytum humile Joseph P. Tracy 1932-7-11 10424 Humboldt Klamath Mountains, Trinity Summit, open ground at Corral Prairie. 1524 Comment
  UC505122  Gayophytum humile Joseph P. Tracy 1932-7-11 10424 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC34638  Genista monspessulana J. M. Sauser 1975-4-9 3 Humboldt Old Arcata Rd., 3/4 mi. S of junction with Indianola Rd. Comment
  UC1198638  Gentiana affinis var. ovata J. P. Tracy 1896-8 15 Humboldt immediate vicinity Eureka; Rick's Prairie 0 Comment
  UC162717  Gentiana sceptrum Joseph P. Tracy 1911-8-27 3535 Humboldt Eureka Northern Coast Region 0 Comment
  UC902032  Gentiana sceptrum Joseph P. Tracy 1949-8-11 18457 Humboldt Snow Camp 1402 Comment
  UC1197396  Geranium carolinianum Joseph P. Tracy 1929-5-5 8558 Humboldt Miranda, along South Fork of Eel River Northern Coast Ranges, South Fork of Eel River 121 Comment
  HSC8647  Geranium dissectum D. B. Bader 1963-4-1 39 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101, along the R.R. tracks Comment
  UC165812  Geranium dissectum Joseph P. Tracy 1909-7-4 3006 Humboldt Eureka Northern Coast Region 0 Comment
  HSC45071  Geranium dissectum R. Sutherland 1978-5-12 10 .12578 Humboldt 282 Comment
  UC1197394  Geranium molle Joseph P. Tracy 1910-5-29 3142 Humboldt Eureka Northern Coast Region 0 Comment
  UC1198955  Geranium molle Joseph P. Tracy 1933-5-19 12198 Humboldt Alton to Fortuna (along the Eel River); Eel River 15 Comment
  HSC28132  Geranium molle J. D. Ackerman 1973-5-6 51 Humboldt Redcrest Comment
  HSC102014  Geum macrophyllum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 915 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC23678  Gilia capitata Tim Baroni 1971-7-5 88 Humboldt 8 mi. E of Petrolia Comment
  HSC73711  Gilia capitata M. A. Baker 1980-7-15 2977 Humboldt Near Whiting Ridge. 1341 Comment
  HSC95436  Gilia capitata subsp. pacifica Gordon Leppig 2003-6-25 1989 Humboldt E side headwaters of Brushy Creek 800 Comment
  HSC104328  Gilia capitata subsp. pacifica James Regan, Humboldt Redwood Co., LLC 2010-6-23 24 Humboldt Monument Ridge, near Brushy Creek 915 Comment
  HSC95545  Gilia millefoliata Andrea Pickart 2002-5-13 101 Humboldt Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 0 Comment
  JEPS37565  Glebionis segetum W. L. Jepson and W. W. Mott 1903-6 2225 Humboldt bluff tops overlooking sea at Caspar 18 Comment
  CAS-BOT-BC218429  Glehnia littoralis subsp. leiocarpa A. A. Heller 1924-7-24 13882 Humboldt Dunes at Humboldt County camp 7 miles south of Trinidad Comment
  HSC39440  Glehnia littoralis subsp. leiocarpa Linda M. Barker 1976-6-22 1626 Humboldt 3 mi. W of Arcata Comment
  RSA730020  Glyceria declinata R. F. Thorne, P. Everett 1965-8-9 35346 Humboldt Along Highway 101 about 3 miles north of Eureka. 2 Comment
  HSC76548  Glyceria elata Denis Kearns 1981-7-23 433 Humboldt Near Whiteys Peak. 1524 Comment
  UC673068  Glycyrrhiza lepidota Joseph P. Tracy 1933-6-25 12626 Humboldt Camp Grant Eel River 60 Comment
  SEINET11849352  Gnaphalium chilense J. P. Tracy 1950-1 19044 Humboldt Trinity River, E side, 1 mi N of mouth of Willow Creek Comment
  UC582519  Gnaphalium palustre Joseph P. Tracy 1930-10-12 99211 Humboldt Eel River, Alton to Fortuna; Eel River 15 Comment
  POM174074  Gnaphalium sphaericum Joseph P. Tracy 1918-9-1 5097 Humboldt Newells Camp, around Humboldt Bay. On old Kneeland Prairie Road. 457 Comment
  CAS-BOT-BC304735  Grindelia hirsutula L. R. Abrams 1927-8-31 12057 Humboldt Along highway between Eureka and Arcata Comment
  JEPS93179  Grindelia hirsutula Margriet Wetherwax and Kevin Downing 1993-8-9 2458 Humboldt Eureka Slough Humboldt Bay (s side, near Bayside Rd. and Myrtle Marsh, at end of road to church, on e side of bay, just n of Eureka) 5 Comment
  RSA18609  Grindelia hirsutula Lyman Benson 1937-9-9 9305 Humboldt Coast, 2 miles S of Cape Mendocino. 6 Comment
  UC370617  Grindelia hirsutula J. P. Tracy 1925-8-30 7255 Humboldt Big Lagoon Comment
  HSC74429  Hackelia bella Gail Newton 1980-8-10 2059 Humboldt Near Blake Mtn. 1707 Comment
  JEPS55579  Hackelia californica Joseph P. Tracy 1932-7-12 10428 Humboldt at Corral Prairie Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  HSC52152  Helenium bigelovii Griswold, Butler 1979-7-11 7007 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  UC1223099  Helenium bigelovii Joseph P. Tracy 1949-8-11 18462 Humboldt Snow Camp 1402 Comment
  HSC5768  Helenium bolanderi H. E. Parks, J. P. Tracy 1937-6-16 15431 Humboldt Trinidad 61 Comment
  HSC5778  Helenium puberulum D. E. Anderson 1965-9-5 4091 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  RSA1499  Helenium puberulum E. R. Johnson 1929-08 1431 Humboldt Along the Redwood Hwy, S of Eureka. 30 Comment
  UC1223171  Helminthotheca echioides Joseph P. Tracy 1948-8-8 18098 Humboldt 2 mi w Bridgeville Comment
  CDA30696  Hemizonia congesta M. K. Beyers, I. Shepardson 2009-9-13 248 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
  HSC35622  Hemizonia congesta subsp. clevelandii Thomas W. Nelson, B. Reinhardt 1975-7-30 2123 Humboldt Beside private road to Pilot Rock Comment
  CAS-BOT-BC310002  Hemizonia congesta subsp. tracyi Alice Eastwood; John Thomas Howell 1937-6-23 4805 Humboldt Little Van Duzen River Comment
  UC1223088  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1950-6-8 18757 Humboldt Comment
  UCD132992  Hemizonia congesta subsp. tracyi R. N. Raynor 1935-1 s.n. Humboldt above Fort Seward. 762 Comment
  CDA20030  Heracleum lanatum P. Haggard 2002-8-23 PDR P 070809 Humboldt North Coast; Wildlife Refuge in the vicinity of Eureka. Sheet 1 of 3 0 Comment
  UC1222144  Hesperolinon micranthum Joseph P. Tracy 1950-7-6 18994 Humboldt 3 mi s Burr Valley (on the Albee Road); Buck Mountain 1158 Comment
  UC1541522  Heterocodon rariflorum H. E. Parks and J. P. Tracy 1934-6-27 11084 Humboldt Grouse Mountain Comment
  CAS-BOT-BC143656  Heteromeles arbutifolia Doris K. Kildale 1926-6-13 2163 Humboldt Briceland Bridge, 1/2 mile west of Garberville 114 Comment
  HSC56114  Heuchera rubescens Gilbert Muth 1979-8-1 11884 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC58215  Hieracium albiflorum Walter Overton 1979-8-1 12352 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC67880  Hieracium albiflorum J. P. Smith 1973-5-26 6874 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC81930  Hieracium albiflorum Thomas W. Nelson, Jane P. Nelson 1979-7-3 4947 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  CAS-BOT-BC312396  Hieracium albiflorum Henry M. Pollard 1947-9-1 s.n. Humboldt Naer summit of Somes Mountain, Orleans region 1219 Comment
  JEPS36565  Hieracium bolanderi Joseph P. Tracy 1926-6-20 7638 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC58196  Hieracium greenei G. L. Clifton, Griswold 1979-8-2 12295 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1299270  Hieracium greenei Freed W. Hoffman 1949-7-15 3010 Humboldt a little s of Blue Ridge; Mt. Lassic Comment
  UC1223077  Hieracium nudicaule Joseph P. Tracy 1949-8-11 18471 Humboldt 2 to 6 mi s from Grouse Mt. (e of headwaters of Redwood Creek beginning at the place where the electric power line crosses); Kinsey Ridge 1280 Comment
  HSC74410  Hieracium scouleri Gail Newton 1980-8-10 2024 Humboldt Near Blake Mtn. 1798 Comment
  SDSU1121  Hierochloe occidentalis D. F. Howe 1962-5-22 3304 Humboldt 3 miles east of Orick on Bald Mt. road 396 Comment
  HSC33769  Holcus lanatus Lon Hall 1975-5-24 378 Humboldt Samoa Dunes, off Samoa Blvd., across from the boat landing Comment
  HSC74670  Holcus lanatus Gail Newton 1981-8-5 2355 Humboldt Near Bug Creek, E Fork. 820 Comment
  BLMAR40  Holcus lanatus Brad Barr 1982-6-21 40 Humboldt King range, hidden valley enclosure Comment
  CAS-BOT-BC149903  Holodiscus discolor L. R. Abrams 1918-6-16 7147 Humboldt Willow Creek Comment
  HSC72986  Holodiscus discolor M. A. Baker 1980-7-15 2947 Humboldt Near Whiting Ridge 301 Comment
  HSC75944  Holodiscus discolor Overton, Butler 1979-7-24 9705 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC79463  Holodiscus discolor Kenneth Clark 1980-6-14 663 Humboldt Along access trail to Dead Man's Gulch. 107 Comment
  HSC99588  Holodiscus discolor K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 253 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SD42284  Holodiscus discolor Carl B. Wolf 1937-9-9 9310 Humboldt North coast Range, Wildcat Ridge, 6 3/10 mi. So. of Ferndale 305 Comment
  UC1198704  Holodiscus discolor Joseph P. Tracy 1911-7-5 3293 Humboldt near mouth of Willow Creek (Northern Coast Ranges, Valley of Trinity River); Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC1198706  Holodiscus discolor Joseph P. Tracy 1932-7-18 10718 Humboldt Klamath Mountains, Trinity Summit, Head of Brett Hole Head of Brett Hole; Klamath Mountains, Trinity Summit, Head of Brett Hole 1828 Comment
  UC187304  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1911-6-25 3252 Humboldt Bucksport region about Humboldt Bay, Bucksport (region about Humboldt Bay, Northern Coast Region) 0 Comment
  UC682044  Hordeum brachyantherum subsp. brachyantherum G. L. Stebbins Jr. and G. L. Church 1941-5-26 3103 Humboldt Eureka, N end of city Comment
  HSC10231  Hordeum vulgare S. J. Hawks 1965-4-6 23 Humboldt Along Clam Beach access road. Comment
  HSC37573  Hordeum vulgare J. D. Ackerman 1975-6-10 460 Humboldt 1 mi. N of Samoa Blvd. and Samoa bridge turnoff intersection. S of Manila. Comment
  HSC45256  Hordeum vulgare M. Alcasas 1978-5-27 109 Humboldt On access road to Eel River Sawmills, 0.5 mi. from Hwy. 101 30 Comment
  UCSB2822  Horkelia tridentata Constance, Lincoln; Beetle, Alan; Tracy, Joseph 1940-5-17 Humboldt Larrabee Valley, near Eureka 762 Comment
  CHSC97957  Horkelia tridentata subsp. flavescens April A. Allard; Gregory D. O'Connell 2005-6-24 16 Humboldt Roadside meadow. 1648 Comment
  CAS-BOT-BC537897  Horkelia tridentata var. flavescens Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CAS-BOT-BC206123  Hosackia crassifolia Clarence R. Quick 1959-7-24 59 -37 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  SEINET957086  Hosackia rosea A. M. Ottley 1914-1 4599 Humboldt Same locality as 4576. Bald Mountian between high prairie and snow camp. 1219 Comment
  UC562601  Hydrophyllum fendleri var. albifrons Joseph P. Tracy 1932-7-15 10602 Humboldt ridges e Corral Prairie; Trinity Summit 1828 Comment
  UC1239765  Hydrophyllum occidentale Joseph P. Tracy 1927-6-12 8158 Humboldt Horse Mountain; Northern Coast Ranges 1219 Comment
  UC35528  Hydrophyllum occidentale Chesnut and Drew 1888-7-21 Humboldt South Fork Mt. Comment
  HSC13541  Hydrophyllum tenuipes H. E. Parks, J. P. Tracy 1930-5-25 863 Humboldt Van Duzen River 305 Comment
  JEPS1642  Hydrophyllum tenuipes W. L. Jepson 1934-5-7 16691 Humboldt Bull Creek Comment
  UC902140  Hypericum anagalloides Joseph P. Tracy 1947-6-28 17750 Humboldt Larrabee Valley 731 Comment
  SD93061  Hypericum perforatum W. Bertsch 1953-7-30 225 Humboldt Highway 101 at Dyerville. 60 Comment
  HSC41265  Hypericum perforatum Brad Klipfel 1974-7-23 458 Humboldt Horse Mtn. along disturbed ridge rd. E of the towers Comment
  UCD110387  Hypericum perforatum subsp. perforatum J. I. Mallory 1955-9-17 123 Humboldt Three-eights mile north-northwest of headquarters, Cottrell Ranch. 746 Comment
  UCD110368  Hypericum perforatum subsp. perforatum David Board 1920-9-1 s.n. Humboldt Lone Star Ranch, Iaqua. Comment
  UCD110388  Hypericum perforatum subsp. perforatum A. H. Murphy 1947-6-19 s.n. Humboldt Dobbins Creek bridge, on Alderpoint-Blocksburg road. Comment
  HSC78973  Hypochaeris glabra L. P. Janeway, Paul Wilson 1984-5-7 760 Humboldt N Spit of Humboldt Bay, on BLM lands near the Coast Guard Station 3 Comment
  UC166804  Hypochaeris radicata J. P. Tracy 1909-7-4 3007 Humboldt immediate vicinity Eureka 0 Comment
  HSC15970  Iliamna latibracteata H. E. Parks, S. T. Parks Jun 1935 5593 Humboldt E side of Prairie Creek, N of Orick Comment
  HSC35755  Iliamna latibracteata Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1999 Humboldt Bald Hills Rd., just W of French Camp. Comment
  JEPS67378 Image available Iliamna latibracteata Joseph P. Tracy 1939-7-23 16350 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
  SEINET10830077 Image available Iliamna latibracteata Joseph P. Tracy 1938-8-14 Tracy 16104 Humboldt Willow Creek anyon, along Trinity Highway. 762 Comment
  UC902182 Image available Iliamna latibracteata Joseph P. Tracy 1949-9-1 18535 Humboldt Along Trinity Highway Willow Creek Canyon. 762 Comment
Read comments
Feb 27 2012
  RSA67626  Iris Philip A. Munz 1951-7-15 16546 Humboldt dry slopes in woods, about 3 miles northeast of Willow Creek Comment
  HSC91876  Iris douglasiana E. Mackey 1986-5-13 Humboldt Patrick's Point State Park near Ceremonial Rock Comment
  UC1196394  Iris douglasiana Joseph P. Tracy 1934-8-31 13644 Humboldt Kneeland Prairie 762 Comment
  HSC13893  Iris douglasiana W. F. Nickel 1965-4-23 Humboldt 10 mi. N of Arcata at Moonstone Beach Comment
  UCD138708  Iris douglasiana L. W. Lenz; E. K. Balls 1956-6-12 21666 Humboldt Between Willow Creek and Blue Lake, U.S. Hwy 299. 365 Comment
  SEINET12045029  Iris tenax T. Jimerson, Pageau, J. 1979-1 436 Humboldt on Forest Road 12N20, 0.2 mi N of Forest Road 15N01 (G.O. Road), Orleans 710 Comment
  HSC45313  Iris tenax subsp. klamathensis R. York 1978-5-11 163 Humboldt Along logging road off Bark Shanty Rd. above Orleans 610 Comment
  HSC63123  Iris tenax subsp. klamathensis M. A. Baker 1979-5-17 731 Humboldt Along Wilson Creek, just E of FS Rd. 15N01 Comment
  HSC66476  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-4-25 920 Humboldt On Eyesee Rd., 0.3 mi. N of Hwy. 96, Orleans Comment
  HSC73242  Iris tenuissima M. A. Baker 1980-5-18 1339 Humboldt Near Black Mtn. 792 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
  HSC5883  Jaumea carnosa D. E. Anderson 1961-9-22 1830 Humboldt Along bank of road over Mad River slough Comment
  UC249817  Juncus bolanderi Joseph P. Tracy 1924-7-13 6730 Humboldt Big Lagoon 6 Comment
  UC1103671  Juncus bufonius var. bufonius Joseph P. Tracy 1914-5-14 4440 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  HSC74173  Juncus confusus M. A. Baker 1980-7-22 3115 Humboldt Near Grogan Hole 1676 Comment
  UC183684  Juncus covillei var. obtusatus Joseph P. Tracy 1904-7-17 2122 Humboldt Hydesville Northern Coast Ranges 60 Comment
  HSC63875  Juncus ensifolius M. A. Baker 1979-6-29 961 Humboldt Hopkins Creek 750 Comment
  UC1103039  Juncus ensifolius Joseph P. Tracy 1926-6-27 7665 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  SD51260  Juncus ensifolius var. ensifolius Darley F. Howe 1961-8-1 Humboldt 9 Miles north of Arcata on #101. Comment
  UCD150386  Juncus hesperius William Anderson and H. Mc. 1964-8-6 s.n. Humboldt Little River. Comment
  POM160292  Juncus nevadensis var. inventus Joseph P. Tracy 1925-10-18 7293 Humboldt Big Lagoon. 6 Comment
  UC184181  Juncus occidentalis Joseph P. Tracy 1912-7-31 3911 Humboldt near Buck Mountain summit; Northern Coast Ranges 1219 Comment
  UC183961  Juncus patens Joseph P. Tracy 1912-7-26 3848 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC249816  Juncus phaeocephalus Joseph P. Tracy 1924-7-13 6733 Humboldt Big Lagoon Northern Coast Region 6 Comment
  CDA28713  Juncus planifolius P. F. Zika 2008-10-19 24229 Humboldt East side of Route 101, near Exit 728 for Trinidad Beach. Elevation: 110 meters. 0 Comment
  RSA183598  Juncus saximontanus D. E. Anderson 1965-9-5 4089 Humboldt Along Mad River, ca. 3 miles south of Blue Lake. Comment
  UC562742  Kalmia polifolia subsp. microphylla Joseph P. Tracy 1935-7-26 14261 Humboldt Trinity Summit, at Water Dog Lakes Water Dog Lakes; Trinity Summit, Water Dog Lakes 1828 Comment
  CAS-BOT-BC235891  Keckiella corymbosa C. Epling; Wm. Robison 1935-7-24 s.n. Humboldt Dyerville Comment
  RSA46967  Keckiella corymbosa Carl B. Wolf 1927-8-30 1237 Humboldt 2 miles S of Petrolia on the Matole River near point where the road crosses the river. Comment
Read comments
Mar 27 2012
  UCD123822  Keckiella corymbosa D. Wiesendanger; F. Randall 1926-7-1 1541 Humboldt Richardson's Grove, Redwood Highway. Comment
  UCSB30601  Kickxia elatine Edwards, David 1974-7-26 Humboldt Pond ca. 50 ft. NW of Grand Rd., ca. 1 1/2 mi.SW of Korbel and ca. 11/2 mi. NE of Mad River 18 Comment
  SEINET200338 Image available Koeleria macrantha J. P. Tracy 1917-6-17 4819 Humboldt Bluff at Ocean Niero Cemetery 61 Comment
  UC1103696  Koeleria macrantha Joseph P. Tracy 1934-6-19 13233 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  UC50517  Koeleria macrantha Joseph Burtt Davy and Walter C. Blasdale 1899-6-12 5478 Humboldt Elk Prairie Comment
  HSC102171  Kyhosia bolanderi M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1083 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC1199391  Kyhosia bolanderi Joseph P. Tracy 1919-9-18 5240 Humboldt near Ranger's lookout; Trinity summit 1889 Comment
  UC552314  Lactuca biennis Joseph P. Tracy 1934-8-14 13583 Humboldt near Myers; North Coast Ranges 60 Comment
  CAS-BOT-BC341441  Lagophylla ramosissima Henry M. Pollard 1945-8-27 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  HSC77913  Landoltia punctata Daniel V. Richards 1980-5-25 101 Humboldt N Clam Beach Pond, E side of Hwy. 101, near Cranell exit. Comment
  UC1223222  Lapsana communis Joseph P. Tracy 1950-7-6 18984 Humboldt 2 mi w Bridgeville (along the Trinity Highway) Comment
  PASA936  Lapsana communis Frank W. Peirson 1926-7-12 Humboldt Orick, sea level Comment
  UC129574  Lasthenia californica subsp. californica Harley P. Chandler 1901-6-1 1455 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  HSC79382  Lasthenia californica subsp. macrantha Kenneth Clark 1981-5-24 1394 Humboldt Abalone Pt. 15 Comment
  UC195066  Lasthenia glaberrima Joseph P. Tracy 1916-6-19 4720 Humboldt Dobbyn Creek Northern Coast Ranges, Dobbyn Creek 182 Comment
  UC1223220  Lasthenia glaberrima Joseph P. Tracy 1951-6-21 19530 Humboldt back Everett Beck house (formerly George Gray's) (Hydesville); in bed of former Goose Lake, Hydesville Comment
  HSC26361  Lasthenia maritima T. O. Osborne 1970-5-24 89 Humboldt Flat-iron Rock, 3/4 mi. NW Trinidad Lighthouse Comment
  UC1222418  Lathyrus glandulosus Joseph P. Tracy 1949-6-20 18313 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC1199082  Lathyrus jepsonii var. californicus Joseph P. Tracy 1936-6-17 14964 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Burr Valley 1066 Comment
  HSC101985  Lathyrus nevadensis var. nevadensis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 883 Humboldt Patterson Meadows 1566 Comment
  HSC71606  Lathyrus nevadensis var. nevadensis Gail Newton 1980-6-16 199 Humboldt Near Onion Mtn. 1280 Comment
  HSC75457  Lathyrus nevadensis var. nevadensis J. O. Sawyer 1980-7-18 3584 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC302108  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1926-5-2 7444 Humboldt Willow Creek Canyon Northern Coast Ranges 609 Comment
  UC1199080  Lathyrus palustris Joseph P. Tracy 1938-7-6 16020 Humboldt Big Lagoon 6 Comment
  UCD106338  Lathyrus palustris Malcolm A. Nobs; S. Galen Smith 1949-8-3 1187 Humboldt Southern outskirts of Eureka. Comment
  UC162840  Lathyrus polyphyllus Joseph P. Tracy Jun 27 1908-Jun 30 1908 2731 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  RSA88215  Lathyrus vestitus subsp. bolanderi C. L. Hitchcock 1948-6-7 19085 Humboldt Ca 15 mi les east of Blue Lake, along Highway #299. Comment
  SEINET12158642  Lathyrus vestitus subsp. bolanderi J. P. Tracy 1942-1 17298 Humboldt nr "Redwood House", Valley of South Yager Creek 610 Comment
  JEPS46259  Lathyrus vestitus var. ochropetalus W. L. Jepson 1934-5-7 16687 Humboldt Dyerville Comment
  UCD106540  Lathyrus vestitus var. ochropetalus C. L. Hitchcock 1949-6-7 19083 Humboldt 1/2 mile S of Pepperwood, along Highway 101. Comment
  CAS-BOT-BC325994  Layia carnosa David D. Keck; J. Clausen 1935-6-16 3381 Humboldt Mouth of Little River. Comment
  HSC26331  Layia carnosa Thomas W. Nelson 1971-4-16 381 Humboldt On dunes along the Samoa Peninsula adjacent to the Coast Guard Station Comment
  HSC100701  Layia carnosa Carl C. Marshall May 1885 39 Humboldt Peninsula. Comment
  CAS-BOT-BC380899  Layia platyglossa Volney Rattan 1877-4-10 196 Humboldt Eureka Comment
  UC154035  Ledum glandulosum J. P. Tracy 1901-6-16 1153 Humboldt immediate vicinity of Eureka 0 Comment
  HSC59442  Lemna minor Kenneth Clark 1979-4-21 148 Humboldt Off of Cranell Rd., 50 ft. E of Hwy. 101 Comment
  UC672865  Lemna turionifera Joseph P. Tracy 1932-8-21 10370 Humboldt on w slope of Chaparral Mountain, on e side of Mad River, Three Cabins Ranch Mad River; Chaparral Mountain, , Three Cabins Ranch 457 Comment
  POM361751  Leontodon nudicaulis M. B. Dunkle 1936-8-18 4810 Humboldt Fortuna Comment
  HSC12416  Leontodon saxatilis subsp. saxatilis D. Santana Oct 1970 27 Humboldt Road side near Big Lagoon Comment
  HSC5926  Leontodon saxatilis subsp. saxatilis S. R. Johnson 1965-3-15 12 Humboldt 1 mi. N of Luffenholtz Beach Comment
  OBI40320  Leontodon saxatilis subsp. saxatilis Ralph N. Philbrick 1974-8-28 s.n. Humboldt Behind sandy beach and road fill, Hwy 101, S of Orick Comment
  JEPS53711  Lepidium nitidum Joseph P. Tracy 1918-5-5 4927 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  UC161491  Lepidium strictum Joseph P. Tracy 1911-7-1 3276 Humboldt near Hydesville (at Carlotta); Northern Coast Region, Carlotta 60 Comment
  UC1173729  Lepidium virginicum Joseph P. Tracy 1939-4-29 16245 Humboldt mouth of Slate Creek Klamath River 121 Comment
  CAS-BOT-BC13039  Lepidium virginicum var. menziesii Volney Rattan 1878-1-1 s.n. Humboldt Hoopa Valley. Comment
  HSC91923  Leucanthemum vulgare E. Mackey 1986-7-21 Humboldt Patrick's Point State Park near Ceremonial Rock. Comment
  UC1199275  Leucanthemum vulgare Joseph P. Tracy 1918-7-21 5080 Humboldt around Humboldt Bay; Humboldt Hill 152 Comment
  SEINET3071950  Lewisia cotyledon var. howellii Lincoln Constance, Reed C. Rollins 1942-1 2885 Humboldt Mouth of Bluff Creek, 6 miles northeast of Weitchpec. 150 Comment
  CAS-BOT-BC444064  Lewisia leeana Joseph P. Tracy 1935-7-24 14200 Humboldt Trinity Summit. Near Ranger Station 1828 Comment
  HSC104437  Lewisia nevadensis Greg O'Connell 2013-5-16 Humboldt North of Board Camp Mountain, southeast of Snow Camp Mountain. Comment
  HSC38789  Lewisia nevadensis J. P. Smith 1976-5-30 8827 Humboldt Near Black Rock on road to Clear Lake 1524 Comment
  HSC32150  Lewisia triphylla D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5597 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  UCD127580  Lilaeopsis occidentalis Malcolm A. Nobs; S. Galen Smith 1949-8-3 1166 Humboldt Eel River Valley, 1 mile south of Fields Landing. Comment
  UC154089  Lilaeopsis occidentalis Joseph P. Tracy 1909-9-19 3102 Humboldt near Samoa; Northern Coast Region, Humboldt Bay 0 Comment
  RSA135355  Lilium Volney Rattan 1879-1 s.n. Humboldt Klamath Comment
  HSC65837  Lilium bolanderi Gail Newton 1980-6-16 183 Humboldt Near Onion Mtn. 1280 Comment
  HSC76435  Lilium bolanderi Denis Kearns 1981-6-24 25 Humboldt Near Cedar Camp 1219 Comment
  RSA65318  Lilium columbianum Albert M. Vollmer, L. Beane 1951-07 s.n. Humboldt A few miles north of Arcata near U. S. Highway 101 Comment
  UCSB24780  Lilium columbianum Keefe, Joseph 1967-7-8 Humboldt 20 miles north of Eureka 1 Comment
  HSC76429  Lilium kelleyanum Denis Kearns 1981-7-23 396 Humboldt Near Whiteys Peak. 1524 Comment
  CAS-BOT-BC130687  Lilium occidentale Doris K. Kildale 1925-7-1 1338 Humboldt Near Bayside Comment
  CAS-BOT-BC130688  Lilium occidentale A. M. Vollmer; L. Beane 1951-7-1 s.n. Humboldt Table Bluff, near Eureka Comment
  CAS-BOT-BC132963  Lilium rubescens Doris K. Kildale 1926-5-16 2001 Humboldt Miranda on South Fork of Eel River Comment
  JEPS19583  Limnanthes douglasii Joseph P. Tracy 1933-5-20 12271 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  SD42236  Limnanthes douglasii Carl B. Wolf 1937-6-14 8818 Humboldt Kneeland Prairie 822 Comment
  JEPS58168  Linanthus androsaceus Joseph P. Tracy 1940-5-17 16553 Humboldt Larrabee Valley 731 Comment
  UC1198540  Linanthus bolanderi Joseph P. Tracy 1914-7-5 4566 Humboldt High Prairie Northern Coast Ranges, Bald Mountain 1066 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
  CHSC68542  Linum bienne Vernon Oswald 1997-4-29 8353 Humboldt Humboldt Bay NWR, Hookton Slough Trail on the levee along the south side of Hookton Slough. 0 Comment
  UC161076  Linum usitatissimum Joseph P. Tracy 1911-6-11 3236 Humboldt near Trinidad; Northern Coast Ranges 60 Comment
  CAS-BOT-BC111982  Lipocarpha occidentalis Joseph Prince Tracy 1931-9-7 9650 B Humboldt Sand bars in River bed, Trinity River Valley at Willow Creek. 152 Comment
  HSC99449  Listera caurina K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 99 Humboldt Near North Trinity Mtn., 11. 9 mi. E of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest 1372 Comment
  JEPS37747  Lithocarpus densiflorus W. L. Jepson 1902-6 2024 A Humboldt Hupa Valley Comment
  RSA247208  Lithocarpus densiflorus var. densiflorus Gary D. Wallace 1971-7-28 946 Humboldt Along King Range Co. Rd. ca. 4 mi SE of Shelter Cove. Comment
  RSA293190  Lithocarpus densiflorus var. densiflorus Thomas W. Nelson, Jane P. Nelson 1978-2-5 3760 Humboldt Kneeland, east side of junction of Kneeland & Maple Creek roads. 671 Comment
  UC1196500  Lithophragma Harold E. Parks and Joseph P. Tracy 1942-5-16 11558 1/2 Humboldt vicinity Garberville 152 Comment
  CAS-BOT-BC430958  Lithophragma bolanderi Doris K. Kildale 1928-5-6 5996 Humboldt Garberville. South Fork of Eel River Comment
  UC154139  Lithophragma campanulatum Mrs. M. H. Manning May 1902 Humboldt near Hupa; near Hupa Comment
  UC1223119  Logfia gallica Joseph P. Tracy 1942-5-16 17338 Humboldt vicinity Garberville Comment
  CAS-BOT-BC342349  Logfia gallica Joseph P. Tracy 1935-5-30 13914 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC5650  Logfia gallica J. P. Tracy 1935-5-30 13914 Humboldt Trinity River Valley at Willow Creek 152 Comment
  UCD66464  Lolium perenne Al Murphy 1948-10-1 Humboldt Ft. Seward. Comment
  HSC32283  Lomatium ciliolatum var. ciliolatum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5619 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC21575  Lomatium dasycarpum subsp. dasycarpum Francis Winter 1960-4-24 Humboldt 1 mi. W of Burnt Ranch 381 Comment
  HSC74465  Lomatium macrocarpum M. A. Baker 1980-5-18 1328 Humboldt Near Black Mtn. 792 Comment
  UC1222608  Lomatium macrocarpum Joseph P. Tracy 1951-6-26 19574 Humboldt vicinity of Twin Lakes Comment
  CAS-BOT-BC211199  Lomatium tracyi Joseph P. Tracy 1930-7-10 8869 Humboldt Brannan Mountain 1219 Comment
  HSC60069  Lomatium utriculatum M. A. Baker 1978-5-6 461 Humboldt Junction of Bald Hills Rd. with French Camp Rd. Comment
  UC183624  Lomatium utriculatum Joseph P. Tracy 1912-6-9 3671 Humboldt Northern Coast Region, Alton 30 Comment
  HSC37195  Lomatium utriculatum Barbara Kelly 1976-5-13 251 Humboldt Below road at Kneeland Airport Comment
  HSC58307  Lonicera conjugialis Overton, Butler 1979-8-2 12589 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC99850  Lonicera conjugialis Jimerson, J. Pageau 1979-8-10 750 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa. 1463 Comment
  UC1239547  Lonicera conjugialis Joseph P. Tracy 1932-7-12 10481 Humboldt head Brett Hole; Trinity Summit 1828 Comment
  CHSC31276  Lonicera hispidula Mark Stopher 1980-5-28 73 Humboldt Growing on Lithocarpus densiflorus along Rte 169, 1.8 mi E of Martins Ferry Bridge. Comment
  UC1052838  Lonicera hispidula var. vacillans W. L. Colwell 1955-6-7 25 Humboldt 1/2 mi n Grasshopper Mountains lookout (3 mi w of Weott); Quad. 29-B-3 914 Comment
  UC35427  Lonicera hispidula var. vacillans Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  CAS-BOT-BC240667  Lonicera interrupta Carl D. Duncan 1920-9-20 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC241495  Lonicera involucrata var. ledebourii D. E. Breedlove 1962-6-7 3047 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  HSC31737  Lonicera involucrata var. ledebourii Donald Spalinger 1974-4-20 15 Humboldt Across from 1756 Ridgewood Dr. 122 Comment
  UC1222486  Lonicera involucrata var. ledebourii Joseph P. Tracy 1950-9-2 19346 Humboldt 2 mi s Field's Landing town Comment
  HSC98250  Lotus aboriginus D. E. Anderson 1963-9-29 2850 Humboldt Fish Lake. Comment
  JEPS20790  Lotus aboriginus W. L. Jepson 1902-6 1944 Humboldt Berry Ranch Redwood Creek Comment
  HSC46979  Lotus corniculatus J. P. Smith, Thomas W. Nelson 1977-6-30 9206 Humboldt Samoa Peninsula just E of the drag strip. Comment
  JEPS55462  Lotus denticulatus W. L. Jepson 1902-6-19 1882 Humboldt Harris to Ft. Seward Ranch Ridge (= Mail Ridge) 1066 Comment
  JEPS8440  Lotus denticulatus Rimo Bacigalupi with L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-13 3405 Humboldt 4 mi w bridge crossing the Van Duzen River (along State Highway 36, Dinsmore); Van Duzen River, Dinsmore Comment
  SEINET3696853 Image available Lotus formosissimus Joseph P. Tracy 1935-6-8 13941 Humboldt Santa Clara Tract, just E of Eureka Comment
  UC1223400  Lotus formosissimus Joseph P. Tracy 1938-6-17 15949 Humboldt s of Cape Mendocino point; Cape Mendocino 3 Comment
  HSC98245  Lotus humistratus J. E. Lankila 1962-5-6 20 Humboldt W bank of Eel River across from Shively, .25 mi. from Bear Creek Comment
  JEPS55511  Lotus humistratus W. L. Jepson 1902-6-20 1897 Humboldt Ft. Seward Ranch Ridge (= Mail Ridge) Mail Ridge 1219 Comment
  RSA168892  Lotus oblongifolius Joseph P. Tracy 1936-6-3 14856 Humboldt Lack Pond, in Trinity River Valley, opposite mouth of Willow Creek. Comment
  SEINET12154246  Lotus oblongifolius J. P. Tracy 1936-1 14856 Humboldt Lack Pond, in Trinity River Valley, opposite mouth of Willow Crk 152 Comment
  UC1223415  Lotus purshianus var. purshianus Joseph P. Tracy 1938-8-7 16102 Humboldt 5 mi n Garberville Comment
  UC202015  Lotus purshianus var. purshianus Joseph P. Tracy 1918-7-28 5092 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  UCD106706  Lotus uliginosus R. Tofsrud 1947-6-29 s.n. Humboldt Near Loleta. Comment
  UCD107084  Ludwigia hexapetala Malcolm A. Nobs; S. Galen Smith 1949-8-9 1231 Humboldt On southern side of town of Blue Lake. Comment
  UC314622  Ludwigia palustris Joseph P. Tracy 1926-8-12 7765 Humboldt near the S. Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  UC503010  Lupinus affinis Joseph P. Tracy 1932-5-1 9877 Humboldt vicinity Garberville; Northern Coast Ranges, vicinity of Garberville 121 Comment
  JEPS64913  Lupinus albifrons Joseph P. Tracy 1916-6-19 4707 Humboldt on high ridges at Robertson Ranch; Northern Coast Ranges, Burr Creek 914 Comment
  UC1197248  Lupinus albifrons Joseph P. Tracy 1932-5-1 9873 Humboldt Garberville; Northern Coast Ranges, Garberville 121 Comment
  HSC36638  Lupinus albifrons var. flumineus Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-6-14 1904 Humboldt Beside Rd. 2S08 to Pine Mtn. 1555 Comment
  CHSC55898  Lupinus arboreus L. P. Janeway 1987-7-31 2547 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  UC1197256  Lupinus arboreus J. P. Tracy 1901-6-16 1141 Humboldt immediate vicinity Eureka (bluff at Bucksport); immed vicin of Eureka, bluff at Bucksport 0 Comment
  UCD106638  Lupinus arboreus Logan Farm Adviser 1921-6-21 s.n. Humboldt Eureka. Comment
  RSA407031  Lupinus arboreus var. arboreus Bonnie C. Templeton 1964-6-13 10091 Humboldt Samoa, west of Arcata. Comment
  UC169050  Lupinus formosus Joseph P. Tracy 1912-7-4 3729 Humboldt near Hydesville; Northern Coast Region, near Hydesville 60 Comment
  UCD107971  Lupinus littoralis Linda M. Barker 1976-7-5 1642 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC150118  Lupinus nanus Harley P. Chandler June, 1901 1314 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC502999  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1932-7-14 10558 Humboldt wet meadow at Corral Prairie (Trinity Summit); Klamath Mountains, Trinity Summit 1524 Comment
  HSC79442  Lupinus rivularis Kenneth Clark 1980-3-27 556 Humboldt On access trail to Dead Man's Gulch, Shelter Cove. 91 Comment
  HSC36275  Lupinus rivularis John Rehling 1974-7-12 12 Humboldt Near the Bald Hills Rd., 3.5 mi. E of Hwy. 101 Comment
  POM276520  Lupinus rivularis Lyman D. Benson 1928-7-10 423 Humboldt Fortuna 30 Comment
  UC1488739  Lupinus tracyi Marc Baker 1980-7-22 3060 Humboldt Salmon Mountain; Salmon Mt. Quad., near Salmon Mountain 287 Comment
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Jul 7 2009
  RSA296811  Lupinus viridifolius Lincoln Constance 1934-5-29 714 Humboldt South Fork Eel River, Upper Look Prairie. 366 Comment
  HSC56410  Luzula comosa Griswold, Butler 1979-7-11 7044 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC70225  Luzula comosa M. A. Baker 1980-6-8 1886 Humboldt Near Buck Flat. 1554 Comment
  HSC73153  Luzula comosa M. A. Baker 1980-5-18 1302 Humboldt Near Black Mtn. 1006 Comment
  UC249818  Luzula macrantha Joseph P. Tracy 1924-3-30 6630 Humboldt Northern Coast Ranges. Near Bridgeville 182 Comment
  CAS-BOT-BC441227  Luzula macrantha Joseph P. Tracy 1926-5-2 7446 Humboldt North Coast Ranges: Willow Creek Canyon, near Ruby Creek 609 Comment
  CAS-BOT-BC441228  Luzula macrantha Joseph P. Tracy 1926-5-2 7446 Humboldt North Coast Ranges: Willow Creek Canyon, near Ruby Creek 609 Comment
  HSC58241  Luzula parviflora G. L. Clifton, Griswold 1979-8-2 12406 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC99587  Luzula parviflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 252 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC83992  Luzula parviflora L. P. Janeway 1983-5-1 253 Humboldt Along dirt rd. E of HSU water tank 61 Comment
  UC1152127  Luzula parviflora Joseph P. Tracy 1934-7-12 13376 Humboldt e side Big Lagoon; e side Big Lagoon Comment
  UC184975  Luzula parviflora Joseph P. Tracy 1908-7-16 2877 Humboldt opposite Buck Mountain (in valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River, Dinsmore's 762 Comment
  UCSB28099  Luzula subsessilis Phelps, M. 1972-3-19 Humboldt Near Old Somerville Homestead; Elk Ridge 609 Comment
  HSC23776  Lycopodium clavatum R. A. Vanbianchi 1971-9-24 90 Humboldt Near Fieldbrook. Comment
  LA205867  Lycopodium clavatum Lawrence L. Kiefer; D. Branscomb 1964-5-20 1435 Humboldt near Trinidad, 1 mi E of Moonstone Beach on Kuntz property 152 Comment
  JEPS63269  Lycopus uniflorus H. E. Parks and Joseph P. Tracy 1924-8-3 6765 Humboldt Big Lagoon 6 Comment
  CHSC26464  Lysichiton americanus J. Detzer 1977-4-8 4 Humboldt S end of Patricks Point State Park, ca. .2 mi w of Hwy. 101 and 5 mi n of Trinidad. 60 Comment
  JEPS431  Lysichiton americanus W. L. Jepson 1936-8-17 17916 Humboldt 2 mi. s. Field's Landing (near Still's ranch) Comment
  UC179917  Lysichiton americanus Joseph P. Tracy 1914-9-13 4627 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  UC34916  Lysichiton americanus W. C. Blasdale 1896-6-4 Humboldt Eureka Comment
  UCD138077  Lysichiton americanus Linda M. Barker 1976-3-11 1321 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC35500  Lysichiton americanus Petrovich May 1961 Humboldt Warren Cr. Comment
  UCSB26679  Lysichiton americanus Neil Havlik 1968-8-21 63 Humboldt collected ath the S-end of the Big Lagoon N of Trinidad Big Lagoon and Trinidad 1 Comment
  HSC46957  Lythrum hyssopifolia J. P. Smith, Thomas W. Nelson 1977-6-30 9203 Humboldt Samoa Peninsula just E of the drag strip. Comment
  HSC101056  Lythrum salicaria Sydney Carothers 1997-8-19 207 Humboldt Hwy. 36, north end of dividerless road; private property 732 Comment
  POM284991  Madia citriodora Lyman Benson 1929-7-12 1791 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  HSC5319  Madia elegans H. E. Parks, J. P. Tracy 1930-5-25 882 Humboldt Laribee Valley 762 Comment
  HSC35631  Madia elegans Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-8-1 2144 Humboldt Beside Willow Creek just up stream from Hwy. 299 bridge Comment
  CAS-BOT-BC344357  Madia exigua L. R. Abrams 1916-7-11 5995 Humboldt Between Blocksberg & Bridgeville Comment
  CAS-BOT-BC344360  Madia exigua Henry M. Pollard 1948-7-21 s.n. Humboldt Near Orleans Comment
  CAS-BOT-BC343020  Madia gracilis Joseph P. Tracy 1935-7-23 14132 Humboldt Trinity Summit. At Corral Prairie 1584 Comment
  CAS-BOT-BC343027  Madia gracilis Doris K. Kildale 1928-6-24 5282 Humboldt Horse Mountain 914 Comment
  CAS-BOT-BC343028  Madia gracilis Doris Kildale 1931-6-6 10856 Humboldt Gans Prairie, Orick - Weitchpec road Comment
  HSC40046  Madia gracilis Thomas W. Nelson, Jane P. Nelson 1976-7-1 2902 Humboldt Along ridge N of Bear Creek 1463 Comment
  JEPS40406  Madia gracilis W. L. Jepson 1903-6-29 2235 Humboldt Low Gap Comment
  UC175981  Madia gracilis Joseph P. Tracy 1908-6 2796 Humboldt Valley of Van Duzen River; Northern Coast Ranges, Buck Mountain 762 Comment
  SEINET11810616  Madia gracilis subsp. pilosa J. P. Tracy 1950-1 19026 Humboldt Sproston's Place, 3 mi S of Burr Valley 1067 Comment
  RSA254781  Madia madioides Thomas W. Nelson, James Nelson 1973-5-28 946 Humboldt McKeown Ranch north of Dinsmore. Comment
  CDA8284  Madia sativa T. C. Fuller 1958-6-17 594 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  UCD134335  Madia sativa Linda M. Barker 1976-7-5 1636 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA21588  Mahonia aquifolium C. B. Wolf 1937-8-13 9233 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  UC1134630  Maianthemum dilatatum H. S. Yates 1936-6-23 5864 Humboldt 1 mi. s. Loleta; Rohnerville Quad. Comment
  UC545825  Maianthemum dilatatum H. E. Parks May, 1932 4289 Humboldt Trinidad, Bishop Pine Lodge Comment
  CAS-BOT-BC508515  Maianthemum dilatatum Doris K. Kildale 1925-12-20 1342 Humboldt Big Lagoon Comment
  HSC97658  Maianthemum dilatatum Danny Pineda 2001-5-3 16 Humboldt 3 mi. E of Hwy. 299 on West End Rd. 61 Comment
  RSA376906  Maianthemum dilatatum Bonnie C. Templeton 1964-6-13 10182 Humboldt Along old 101 Highway to Trinidad Comment
  SEINET3992237  Maianthemum dilatatum C. O. Baker 1962-5-7 Humboldt 2 miles south of Trinidad along Hwy 101. Comment
  SBBG1057  Maianthemum racemosum H. and M. Dearing 1933-5-16 259 Humboldt Weott Comment
  HSC15650  Maianthemum racemosum subsp. amplexicaule V. G. Vieira 1963-5-2 47 Humboldt Butler Valley Ranch Comment
  HSC58150  Maianthemum stellatum G. L. Clifton, Griswold 1979-8-2 12200 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC99389  Maianthemum stellatum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 38 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC97226  Malacothrix floccifera Kiera A. Freeman, Heather J. Perry 2007-6-11 4 Humboldt 14.1 mi. S of Hwy. 299 on NF1 1372 Comment
  RSA95019  Malacothrix floccifera F. W. Peirson 1923-7-9 3933 Humboldt Humboldt County State Park Comment
  UC1239529  Malacothrix floccifera Joseph P. Tracy 1935-7-17 14100 Humboldt Willow Creek Canyon Northern Coast Ranges 304 Comment
  HSC18694  Malus fusca L. J. Coombes 1964-5-16 30 Humboldt Camp Bowers, 3 mi. SE of Blue Lake 305 Comment
  UC1052474  Malus fusca H. E. Parks Apr 1933 4352 Humboldt Spruce Cove; Trinidad Comment
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Jun 17 2020
  POM67053  Marah oregana Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC168955  Marah oregana Joseph P. Tracy 1904-7-17 2120 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC26658  Marah oregana Thomas W. Nelson 1973-5-22 920 Humboldt Growing on C.S.U.H. campus Comment
  UCSB15707  Marah oregana 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
  UC673066  Medicago arabica Joseph P. Tracy 1933-5-20 12220 Humboldt Capetown Bear River (valley along river) 30 Comment
  HSC31809  Medicago lupulina Donald Spalinger 1974-4-25 23 Humboldt Forest across from 1756 Ridgewood Dr. 122 Comment
  UC673067  Medicago polymorpha Joseph P. Tracy 1936-6-8 14869 Humboldt Trinidad Bluffs Trinidad 3 Comment
  UC1103758  Melica fugax Joseph P. Tracy 1936-7-5 15041 Humboldt Grouse Mountain 1524 Comment
  UC1132260  Melica geyeri H. S. Yates 1936-6-17 5717 Humboldt South Fork Pk , Burr Valley (Burr Valley) 1036 Comment
  UC526920  Melica geyeri Joseph P. Tracy 1926-6-20 7650 Humboldt Horse Mountain; Northern Coast Ranges 1524 Comment
  CAS-BOT-BC281324  Melica harfordii Doris K. Kildale 1928-6-24 5287 Humboldt Horse Mountain 914 Comment
  CAS-BOT-BC281004  Melica spectabilis Joseph P. Tracy 1932-7-12 10445 Humboldt Klamath Mts,Trinity Summit. At Corral Prairie 1524 Comment
  CAS-BOT-BC262467  Melica subulata Joseph P. Tracy 1935-5-25 13898 Humboldt North Coast Ranges. Dobbyn Creek 152 Comment
  UC526919  Melica subulata Joseph P. Tracy 1933-5-28 12416 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  HSC46021  Melilotus albus Catherine Chin 1978-8-5 92 Humboldt 7th & A St., Arcata Comment
  RSA293200  Melilotus albus J. P. Smith 1973-5-26 6875 Humboldt Scotia Bluffs along the Eel River near Rio Dell.. Comment
  JEPS63289  Melissa officinalis W. L. Jepson 1936-8-6 17854 Humboldt Philipsville, S. Fork Eel R. S. Fork Eel R., Philipsville Comment
  UC562530  Mentzelia dispersa Joseph P. Tracy 1933-7-26 12916 Humboldt North Coast Ranges, Grouse Mountain 1524 Comment
  UC1198473  Mentzelia laevicaulis var. laevicaulis Joseph P. Tracy 1911-7-10 3501 Humboldt near: along Willow Creek mouth,Tributary of Trinity River; Northern Coast Ranges 152 Comment
  JEPS80897  Menziesia ferruginea B. A. Bohm, K. W. Nichols 1981-5-11 1571 C Humboldt Prairie Creek area, Mile 125.00, US Hwy 101 Prairie Creek area; , Mile 125.00, US Hwy 101 Comment
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Jul 9 2015
  JEPS80898  Menziesia ferruginea B. A. Bohm, K. W. Nichols 1981-5-11 1571 A Humboldt Prairie Creek area, Mile 125.00, US Hwy 101 Prairie Creek area; , Mile 125.00, US Hwy 101 Comment
  UCD117667  Menziesia ferruginea June McCaskill; Katherine Onaga 1959-6-19 601 Humboldt East side of U.S. Highway 101, Russ Grove, Prairie Creek Redwoods State Park. Comment
  HSC77389  Menziesia ferruginea subsp. ferruginea L. P. Janeway 1983-5-3 258 Humboldt Community Forest Main Access Rd., E of HSU 168 Comment
  RSA167437  Micropus californicus Joseph P. Tracy 1947-5-10 17681 Humboldt Near Briceland Comment
  UC468880  Microseris bigelovii J. P. Tracy 1900-6-5 839 Humboldt immediate vicinity Eureka 0 Comment
  JEPS5825  Microseris borealis Joseph P. Tracy 1936-6-28 15027 Humboldt Lake Prairie Bald Mountain (in bog) 1066 Comment
  CAS-BOT-BC322681  Microseris laciniata Harley P. Chandler 1901-6-1 1408 Humboldt Klamath River 243 Comment
  UC538045  Microseris nutans E. B. Babcock 1932-6-25 405 Humboldt n slope South Fork Mt. (Humboldt-Trinity Counties) 1524 Comment
  HSC20712  Mimulus dentatus R. Spellenberg 1965-6-14 1133 Humboldt 1.5 mi E of Bayside on road leading up Jacoby Creek Comment
  JEPS4719  Mimulus dentatus Milo S. Baker 1923-7-16 16 Humboldt 3 mi e Eureka Comment
  RSA430202B  Mimulus dentatus J. P. Smith 1973-5-26 6821 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC336872  Mimulus dentatus V. Rattan June 1882 Humboldt Humboldt Bay Comment
  HSC90635  Mimulus guttatus Gail Newton 1983-6-5 3555 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC20749  Mimulus guttatus T. M. Mingo May 1965 Humboldt About 100 ft. N of the intersection of Fairhaven Dr. and old Hwy. 101 Comment
  UC535723  Mimulus inodorus Eleanor Armstrong 1934-8-18 1138 Humboldt Richardson Grove 121 Comment
  UC147880  Mimulus inodorus Joseph P. Tracy 1908-6 2697 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC445201  Mimulus moniliformis Mrs. M. H. Manning July 1901 302 Humboldt near Hupa Comment
  HSC97442  Mimulus moschatus Ivy Watson 2008-9-11 8 Humboldt Blue Lake, 300 m downstream of the Hatchery Rd. bridge, N bank 22 Comment
  RSA15580  Mimulus moschatus Carl B. Wolf 1927-8-27 1160 Humboldt On the Klamath River, 14 mi. above Weitchpec. Comment
  UC1173697  Mimulus pilosus Joseph P. Tracy 1939-9-24 16502 Humboldt near Blue Lake; Mad River 15 Comment
  HSC48863  Mimulus pulsiferae Brad Klipfel 1973-6-10 56 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC582493  Mimulus pulsiferae Joseph P. Tracy 1926-6-20 7616 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
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Sep 10 2013
  HSC20826  Mimulus pulsiferae J. P. Tracy 1934-6-27 11089 Humboldt Grouse Mtn.; near 'Cold Springs 1433 Comment
  HSC20828  Mimulus pulsiferae H. E. Parks, J. P. Tracy 1937-6-27 11087 Humboldt Grouse Mtn. 1433 Comment
  UC1198338  Minuartia douglasii Joseph P. Tracy 1947-7-5 17793 Humboldt Mud Springs Trinity Summit 1371 Comment
  HSC71799  Minuartia nuttallii subsp. gregaria M. A. Baker 1980-6-8 1924 Humboldt Near Buck Flat. 1554 Comment
  HSC102181  Mitella trifida M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1095 Humboldt Patterson Meadows 1566 Comment
  HSC4287  Moehringia macrophylla Lincoln Constance 1934-6-19 908 Humboldt Near summit of Grasshopper Peak, S Fork Eel River, Bull Creek region 915 Comment
  UC229833  Mollugo verticillata Joseph P. Tracy 1921-10-16 5972 Humboldt near Willow Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC221777  Monardella odoratissima Doris K. Kildale 1927-7-22 3814 Humboldt Lassecks Peaks 1661 Comment
  UC1239677  Monardella odoratissima subsp. glauca Joseph P. Tracy 1935-7-14 14093 Humboldt Horse Mountain 1310 Comment
  CAS-BOT-BC215569  Monardella odoratissima subsp. pallida Doris K. Kildale 1925-8-18 1229 Humboldt Trinity Summit 1828 Comment
  HSC73745  Monardella odoratissima subsp. pallida M. A. Baker 1980-7-19 2989 Humboldt Near Bret Hole. 1814 Comment
  UC1239678  Monardella odoratissima subsp. pallida Joseph P. Tracy 1932-7-12 10436 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1222870  Monardella purpurea Joseph P. Tracy 1950-7-27 18920 Humboldt at intersection of Haynes Flat Road Coon Mountain 944 Comment
  HSC98019  Monardella sheltonii Cara Witte 2007-7-9 457 Humboldt Forest Service Road 4N32. 1.4 mile north of intersection with 4N32B. 1413 Comment
  HSC100506  Monardella villosa Carl C. Marshall Jun 1886 276 Humboldt Hoopa. Comment
  BLMAR589  Monardella villosa subsp. villosa Jennifer Wheeler 2010-7-13 589 Humboldt King range, Panther Gap Road 792 Comment
  UC314640  Moneses uniflora Joseph P. Tracy 1926-5-22 7515 Humboldt Northern Coast Ranges, Prairie Creek Prairie Creek; Northern Coast Ranges, Prairie Creek 152 Comment
  UC161032  Montia diffusa Joseph P. Tracy 1908-6 2725 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC161062  Montia diffusa Joseph P. Tracy 1906-6-10 2487 Humboldt Kneeland Prairie, near Haughey's Mill Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 609 Comment
  HSC63080  Morella californica David Wheeler 1979-4-30 89 Humboldt 910 Gwinn St., McKinleyville Comment
  HSC58649  Muhlenbergia filiformis G. L. Clifton, Griswold 1979-7-31 11677 Humboldt Near the Trinity Summit Guard Station, close to the town of Hoopa. 1804 Comment
  UC526744  Muhlenbergia filiformis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8920 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain (in wet meadow) 1676 Comment
  UC552838  Myosotis discolor Joseph P. Tracy 1935-5-25 13847 Humboldt Fort Seward North Coast Ranges, Fort Seward 106 Comment
  SEINET201033  Nassella pulchra Joseph P. Tracy 1927-5-8 7963 Humboldt Phillipsville. 122 Comment
  JEPS70235  Navarretia atractyloides Joseph P. Tracy 1925-7-12 7206 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC102509  Navarretia capillaris M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1494 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  UC582694  Navarretia intertexta Joseph P. Tracy 1937-6-26 15363 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1222712  Navarretia intertexta subsp. intertexta Joseph P. Tracy 1950-6-25 18898 Humboldt 3 mi s Burr Valley (near the Sprosten Place, on the road to the Albee Place) Comment
  UC1197893  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1933-7-25 12866 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  POM65883  Navarretia pubescens Joseph P. Tracy 1916-6-20 4733 Humboldt Alder Point, Northern Coast Ranges 152 Comment
  UC198634  Navarretia pubescens Joseph P. Tracy 1916-6-20 4733 Humboldt Alder Point Northern Coast Ranges 152 Comment
  HSC25539  Navarretia squarrosa Mike Sibernagle 1972-12-4 Humboldt 3 mi. E of Hwy. 101 beside Crannel Rd. Comment
  HSC43175  Navarretia squarrosa R. Sutherland 1976-8-13 16 .13876 Humboldt Redwood Creek, Whittemore Grove. 87 Comment
  UC169009  Nemophila heterophylla Mrs. M. H. Manning Mar. 1902 Humboldt Hupa Comment
  UC1239751  Nemophila menziesii Joseph P. Tracy 1923-3-17 6158 Humboldt vicinity Garberville; vicinity of Garberville 121 Comment
  POM73962  Nemophila menziesii var. atomaria Joseph P. Tracy 1906-5-6 2445 Humboldt Near Hydesville. 60 Comment
  CAS-BOT-BC219405  Nemophila parviflora Doris K. Kildale 1927-3-20 2915 Humboldt Philipsville [Phillipsville], South Fork of Eel River Comment
  UC562594  Nemophila pedunculata Joseph P. Tracy 1927-4-2 7873 Humboldt facing South Fork Eel River (Phillipsville); Northern Coast Ranges, , South Fork Eel River 121 Comment
  HSC96247  Nemophila pedunculata Kaylea Eickhoff, Cara M. Witte 2005-6-15 13 Humboldt 14.1 mi. S of Hwy. 299 on NF1, 0.25 mi. NE of Grouse Mtn. 1400 Comment
  JEPS12381  Nicotiana quadrivalvis Joseph P. Tracy 1930-10-19 9223 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  UC73585  Nicotiana quadrivalvis var. quadrivalvis Joseph Burtt Davy and Walter C. Blasdale 1899-6-20 5709 Humboldt Hoopa Valley Comment
  POM266039  Noccaea fendleri subsp. glauca Lincoln Constance, Reed C. Rollins 1942-5-12 2887 Humboldt Klamath River, 7 miles NE of Weitchpec. 122 Comment
  HSC54573  Notholithocarpus densiflorus Overton, Butler 1979-7-24 9607 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC37911  Nuttallanthus texanus Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  CAS-BOT-BC142296  Oemleria cerasiformis Doris K. Kildale 1926-3-2 1862 Humboldt Willow Creek Flat, Trinity River Valley 152 Comment
  UCD81683  Oenanthe sarmentosa Chuck Hughes 2009-6-18 102 Humboldt Near Arcata. NE corner of intersection of Old Samoa Road and Pacheco Road. 1 Comment
  CDA38491  Oenanthe sarmentosa Margaret Bellue Jul 1933 s.n. Humboldt Arcata. 0 Comment
  UC642334  Oenanthe sarmentosa Joseph P. Tracy 1936-8-17 15149 Humboldt near Field's Landing 6 Comment
  UCD106955  Oenothera wolfii D. Wiesendanger; F. Randall 1926-8-1 1544 Humboldt Near Arcata. Comment
  HSC102088  Oreostemma alpigenum var. andersonii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 991 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC1245403  Orobanche fasciculata Joseph T. Gregory 1935-7-30 860 Humboldt Salmon Summit. Comment
  HSC96246  Orobanche uniflora Kaylea Eickhoff, Cara M. Witte 2005-6-10 10 Humboldt Coldspring Camp, 7.4 mi. S of Hwy. 299 on NF1 1370 Comment
  HSC101965  Orogenia fusiformis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 860 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC458030  Orthilia secunda Joseph P. Tracy 1932-7-20 10737 Humboldt Trinity Summit, near Corral Prairie 1584 Comment
  RSA202254  Orthocarpus erianthus var. gratiosus L. D. Thurman 1965-4-8 626 Humboldt 4.4 miles S of Samoa, growing along the roadside in sandy soil Comment
  POM228347  Orthocarpus faucibarbatus var. albidus S. K. Harris 1936-6-7 683 Humboldt Eureka. Near railroad station. 3 Comment
  HSC102550  Osmorhiza berteroi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1538 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC56006  Osmorhiza berteroi Overton, Butler 1979-7-31 11474 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  UC162920  Osmorhiza berteroi Joseph P. Tracy 1911-7-5 3322 Humboldt along Willow Creek near mouth (creek is a tributary of Trinity River)); Northern Coast Ranges 304 Comment
  UC314578  Osmorhiza occidentalis Joseph P. Tracy 1926-5-15 7474 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC642274  Osmorhiza occidentalis Joseph P. Tracy 1928-6-24 8462 Humboldt Valley of South Yager Creek 762 Comment
  UC176987  Oxalis albicans subsp. pilosa Joseph P. Tracy 1912-6-9 3682 Humboldt Alton Northern Coast Ranges 30 Comment
  HSC16717  Oxalis articulata subsp. rubra William J. Ferlatte 1963-4-27 23 Humboldt Waste place near 11th and B street, in Arcata. Comment
  HSC16718  Oxalis articulata subsp. rubra David K. Smith 1968-11-20 70 Humboldt At jct. of Old Arcata Rd. and Jacoby Creek Rd. Comment
  CHSC32846  Oxalis oregana Lora L. Anderson 1981-4-25 3 Humboldt Ca. 1/2 mi s of Redwood Creek, 4 mi n on Redwood Valley Rd. off hwy 299 w 16 mi ne of Arcata. 457 Comment
  UCR84792  Oxalis oregana Kathy Harper 1992-5-14 s.n. Humboldt State Hwy 36 c. 5 mi. east of U.S. Hwy 101, and 1 mi. east of Carlotta 61 Comment
  HSC34809  Oxalis oregana John Palmer 1975-4-9 298 Humboldt 40 yds. E of intersection of 17th at Bayview St., Arcata Comment
  HSC83316  Oxalis oregana R. W. Becking 1987-5-2 Humboldt Humboldt State University campus, adjacent to back steps on S side of Natural Resources building Comment
  HSC55209  Oxalis trilliifolia Walter Overton 1979-8-1 12336 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  UC302046  Oxalis trilliifolia Joseph P. Tracy 1926-5-22 7499 Humboldt Prairie Creek Northern Coast Ranges Comment
  CAS-BOT-BC363261  Packera bolanderi var. bolanderi Gordon Leppig 2002-6-27 1763 Humboldt Grizzly Creek State Park, ~300m NW of campground on trailside on rocky slope above Grizzly Crk. 100 Comment
  UC166076 Image available Packera bolanderi var. bolanderi Joseph P. Tracy 1911-6-4 3231 Humboldt 5 mi from The Coast (along Little River); Northern Coast Region, Little River 121 Comment
  UC418982  Packera bolanderi var. bolanderi H. E. and S. T. Parks May 1930 747 Humboldt near Blue Slide; Middle Van Duzen River Comment
  UCD134738  Packera bolanderi var. bolanderi K. Esau 1934-5-8 s.n. Humboldt Redwood Highway, near Scotia. Comment
  UCD88691  Panicum acuminatum var. fasciculatum Joseph P. Tracy 1918-7-5 5014 Humboldt White Thorn Valley. 304 Comment
  CAS-BOT-BC253709  Panicum capillare Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans region Comment
  UC184379  Panicum capillare Joseph P. Tracy 1912-10-20 4009 Humboldt Alton Northern Coast Region, Alton 30 Comment
  HSC93730  Parapholis incurva Gordon Leppig, Sylvia Leppig 1998-5-25 788 Humboldt Big Lagoon State Park. 1 Comment
  OBI36624  Parapholis incurva David J. Keil 1983-7-2 17303 Humboldt Humboldt Bay salt marsh at Arcata Corp Yard Comment
  CAS-BOT-BC253924  Parapholis incurva S. K. Harris; J. P. Tracy 1936-6-6 3218 Humboldt Near railroad station, Eureka Comment
  CHSC20872  Parentucellia viscosa Robert A. Schlising 1963-6-3 2582 Humboldt 2 miles north 0f Fortuna. Comment
  JEPS94285  Parentucellia viscosa Vernon Oswald and Lowell Ahart 1997-9-4 8855 Humboldt Samoa Dunes Recreation Area at the s end of the North Spit separating Humboldt Bay from the ocean North Spit; Samoa Dunes Recreation Area Comment
  RSA331969  Parentucellia viscosa Dave Kelly, Walter Wisura 1985-7-28 4063 Humboldt Near Manila, Samoa Peninsula near Eureka. Comment
  HSC90262  Parentucellia viscosa Jean Hanson 1980-5-24 75 Humboldt Indian (Gunther) Island in Humboldt Bay, city of Eureka, W end of island, S of dike Comment
  RSA246670  Parentucellia viscosa Robert F. Thorne, Percy C. Everett 1965-8-7 35202 Humboldt Samoa Peninsula. Near sea level. Comment
  UCD123312  Pedicularis densiflora Joseph M. DiTomaso 1976-3-28 361 Humboldt 3 miles east of Willow Creek on Highway 299. Comment
  HSC54218  Pellaea brachyptera Griswold, Butler 1979-7-12 7282 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC24382  Penstemon anguineus J. O. Sawyer 1970-6-24 2255 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  RSA43896  Penstemon anguineus H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1372 Comment
  RSA46785  Penstemon anguineus Doris Kildale Gillespie 1937-8-12 15261 Humboldt South Fork Mountain. Comment
  RSA20780  Penstemon anguineus Carl B. Wolf 1937-7-13 9244 Humboldt North Coast Range, 11 mi E of Hoopa Valley on New Road towards Trinity Summit. 1524 Comment
  UCD124036  Penstemon anguineus Thomas Nelson; Jane Nelson 1976-7-1 2907 Humboldt east side of Red Lassic, beside Road 1S07. 1676 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
  JEPS7562  Penstemon heterophyllus var. heterophyllus Joseph P. Tracy 1933-6-25 12616 Humboldt 2 to 5 mi e South Fork (Camp Grant, along Eel River); along Eel River 45 Comment
  HSC36637  Penstemon laetus subsp. sagittatus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1905 Humboldt N side of Pine Mtn. Comment
  JEPS11624  Penstemon laetus var. sagittatus Joseph P. Tracy 1937-7-24 15512 Humboldt 2 mi se Devil's Hole; Trinity Summit, se of Devil's Hole 1584 Comment
  UC577396  Penstemon laetus var. sagittatus Joseph P. Tracy 1935-7-14 14073 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  HSC72988  Penstemon newberryi M. A. Baker 1980-7-23 3144 Humboldt Near Orleans Mtn. 1859 Comment
  HSC63245  Penstemon newberryi var. berryi M. A. Baker 1979-6-28 948 Humboldt NE side near summit of Packsaddle Ridge just N of the most E tip of the N fork of Mill Creek Comment
  HSC99527  Penstemon newberryi var. berryi K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 191 Humboldt Near North Trinity Mtn and Water Dog Lakes, Six Rivers National Forest. 1826 Comment
  HSC99528  Penstemon procerus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 192 Humboldt Near North Trinity Mtn and Water Dog Lakes, Six Rivers National Forest. 1826 Comment
  HSC55991  Penstemon procerus var. brachyanthus Walter Overton, Marvin Butler 1979-7-31 11417 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC56195  Penstemon procerus var. brachyanthus Gilbert Muth 1979-8-1 12139 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC103085  Penstemon purpusii Sydney Carothers 2014-6-22 6 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  POM15900  Penstemon rattanii subsp. rattanii Joseph P. Tracy 1906-6-10 2480 Humboldt Kneeland Prairie. 762 Comment
  UC184100  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1913-9-7 4390 Humboldt Eureka Northern Coast Region 0 Comment
  HSC56312  Perideridia kelloggii Overton, Butler 1979-8-2 12645 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC73872  Perideridia parishii subsp. latifolia Gail Newton 1980-7-14 1459 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC99811  Perideridia parishii subsp. latifolia G. L. Clifton, Terry Griswold 1979-8-1 12020 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC13680  Phacelia bolanderi W. Lanphere 1937-5-25 Humboldt Dyerville Comment
  RSA170270  Phacelia bolanderi Joseph P. Tracy 1916-5-31 4704 Humboldt Stitz Creek. Along Eel River South Fork to Scotia. 61 Comment
  JEPS2079  Phacelia heterophylla subsp. virgata Lincoln Constance 1934-5-29 731 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek region 365 Comment
  UC176065  Phacelia heterophylla subsp. virgata Joseph P. Tracy 1913-6-21 4252 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC169011  Phacelia nemoralis subsp. oregonensis Harley P. Chandler 1901-6-4 1336 Humboldt Campbell Creek North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC604639  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1938-9-4 16143 Humboldt mouth Hors-Linto Creek 243 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
  HSC10551  Phalaris arundinacea W. F. Cartwright 1965-5-20 75 Humboldt 5 mi. S of Arcata on Old Arcata Road Comment
  RSA167286  Phalaris californica Joseph P. Tracy 1951-6-26 19599 Humboldt on Butter Valley Road, about 2 miles east of junction of Kneeland Prairie Road Comment
  UCD89189  Phalaris minor A. H. Murphy 1951-6-6 s.n. Humboldt W Roscoe at Upper Mattole. Comment
  UC154152  Philadelphus lewisii Mrs. M. H. Manning 1900-1 Humboldt Hupa Comment
  RSA0046930  Philadelphus lewisii Doris K. Kildale 1927-7-3 s.n. Humboldt Willow Creek Flat. Comment
  HSC54708  Phleum alpinum Overton, Butler 1979-7-26 10055 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  CAS-BOT-BC250883  Phleum pratense Doris K. Kildale 1926-6-27 2202 Humboldt Laribee Valley 701 Comment
  HSC58545  Phleum pratense Overton, Butler 1979-7-23 9548 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  RSA53856  Phleum pratense Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. Trail 1524 Comment
  HSC55663  Phlox adsurgens Overton, Butler 1979-7-25 9821 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  HSC75515  Phlox adsurgens J. O. Sawyer, R. J. Cole 1977-7-3 3008 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  HSC99405  Phlox adsurgens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 54 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SJSU914  Phlox adsurgens J. W. Tilden 1946-6-20 1009 Humboldt Bluff Cr c. 1.5 mi above junction with Klamath R Comment
  UC1222710  Phlox adsurgens Joseph P. Tracy 1950-7-2 18965 Humboldt 6 mi ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC23903  Phlox adsurgens Harley P. Chandler Jun 1901 1534 Humboldt Klamath River North Coars Ranges 426 Comment
  UC1191120  Phlox douglasii subsp. rigida Joseph P. Tracy 1933-7-25 12828 Humboldt Horse Mountain 1432 Comment
  UC908475  Phlox gracilis Joseph P. Tracy 1930-6-21 8790 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  HSC18715  Physocarpus capitatus Paul Shields Jul 1955 Humboldt 1/2 mi. N of Weott Comment
  CAS-BOT-BC73442  Picea sitchensis L. R. Abrams 1916-7-18 6131 Humboldt Arcata to Trinidad. Comment
  UC527820  Picea sitchensis Ira L. Wiggins 1932-6-28 5870 Humboldt hillside just n Little River Comment
  SEINET5334460  Picea sitchensis W. D. Billings 1940-6-28 1355 Humboldt 1/4 mile north of Trinidad Head Comment
  HSC100690  Pimpinella apiodora Carl C. Marshall Jun 1886 298 Humboldt Bald Hills. Comment
  CAS-BOT-BC73406  Pinus Doris Kildale Gillespie 1931-6-7 10587 Humboldt South Fork Mt., Blake Lookout. 1726 Comment
  CAS-BOT-BC73288  Pinus contorta W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula. Comment
  HSC1487  Pinus contorta J. W. Johnson 1962-4-29 1294 Humboldt Ridge 8, Lanphere Farm, Samoa Peninsula Comment
  RSA286309  Pinus contorta var. contorta Robert F. Thorne 1974-7-29 45083 Humboldt Somoa Dunes. Comment
  CAS-BOT-BC73199  Pinus jeffreyi Doris K. Kildale 1926-9-5 2648 Humboldt Lassen's Peaks. Signal Peak. 1791 Comment
  CAS-BOT-BC73112  Pinus lambertiana Doris K. Kildale 1927-7-22 3831 Humboldt Lassecks Peaks, Coral Camp 1661 Comment
  JEPS64469  Piperia candida Lincoln Constance 1934-5-27 708 Humboldt s end of Dyerville Bridge (Bull Creek Region, S. Fork Eel River); Bull Creek Region, S. Fork Eel River 45 Comment
  CAS-BOT-BC169835  Plagiobothrys Doris K. Kildale 1929-4-27 7450 Humboldt Willow Creek - Salya road along Trinity River. 3 miles N of Willow Comment
  UC667001  Plagiobothrys bracteatus Joseph P. Tracy 1939-4-29 16232 Humboldt Hoopa Valley 106 Comment
  UC552836  Plagiobothrys reticulatus Joseph P. Tracy 1935-6-8 13949 Humboldt along coast in front of s end Stone Lagoon; Dry Lagoon, Stone Lagoon 3 Comment
  UC582615  Plagiobothrys reticulatus Joseph P. Tracy 1937-6-20 15335 Humboldt ten mi up stream from mouth Bear River 152 Comment
  BLMAR625  Plantago coronopus Jennifer Wheeler 2011-6-7 625 Humboldt South Spit, Overflow parking area near interpretive kiosk 3 Comment
  UC1151994  Plantago erecta Joseph P. Tracy 1950-6-8 18730 Humboldt Bear River Bridge 609 Comment
  HSC16840  Plantago lanceolata D. B. Bader 1963-4-1 13 Humboldt Second of the Clam Beach lagoons, W of Hwy. 101 Comment
  HSC79355  Plantago lanceolata Kenneth Clark 1980-5-10 648 Humboldt Above western beach, Point Delgada, Shelter Cove areas 6 Comment
  RSA246720  Plantago lanceolata Robert F. Thorne, Percy C. Everett 1965-8-8 35232 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  HSC71216  Plantago maritima Thomas W. Nelson, Doris K. Niles 1979-5-19 4692 Humboldt Tidal marsh at mouth of Eel River, Crab Park, N of County Park. Comment
  HSC16831  Plantago subnuda J. P. Tracy 1906-6-17 2493 Humboldt Eureka 0 Comment
  HSC53868  Platanthera dilatata Griswold, Butler 1979-7-10 6348 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC54595  Platanthera dilatata var. leucostachys Overton, Butler 1979-7-24 9669 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC96482  Platanthera dilatata var. leucostachys Gordon Leppig 1997-6-19 443 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  UC1037486  Platanthera leucostachys Milo S. Baker 1927-8-21 2480 b Humboldt near Bald Mt. 914 Comment
  HSC76607  Platanthera sparsiflora Teresa Prendusi 1981-7-7 121 Humboldt Near Slate Creek Butte. 1158 Comment
  HSC99365  Platanthera sparsiflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 14 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC98719  Platanthera sparsiflora Cara Witte 2008-7-1 792 Humboldt Near Grouse Mountain spring. Along Forest Service Road 5N04. 1/4 mile east of intersection with 4N70. 1583 Comment
  HSC1976  Platystemon californicus D. E. Anderson, N. Dennis 1965-6-8 107 Humboldt Samoa Peninsula along the W side of Humboldt Bay 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
  UC602508  Plectritis brachystemon Joseph P. Tracy 1933-5-20 12250 Humboldt Northern Coast Ranges, Mattole Valley Mattole Valley; Northern Coast Ranges, Mattole Valley 60 Comment
  SJSU2519  Pleuricospora fimbriolata H. L. Buckalew 1962-6-28 Humboldt Prairie Cr, Redwoods State Park Comment
  RSA255770  Pleuricospora fimbriolata Gary D. Wallace 1973-6-18 1235 Humboldt Prairie Creek Redwoods St. Pk. north of Orick. Comment
  HSC10625  Poa annua P. N. Slattery 1963-4-4 28 Humboldt Clam Beach. Comment
  HSC90689  Poa annua Gail Newton 1982-6-10 3593 Humboldt Elk River Wildlife Area, Eureka Comment
  CAS-BOT-BC254712  Poa bolanderi Joseph P. Tracy 1932-7-12 10464 Humboldt Klamath Mountains. Head of Brett Hole 1828 Comment
  HSC10685  Poa confinis Norman H. Moe 1962-5-17 Humboldt Lanphere's Place. Comment
  UCD91030  Poa douglasii subsp. douglasii Linda M. Barker 1976-5-13 1491 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC60806  Poa howellii Joseph Burtt Davy and Walter C. Blasdale 1899-6-9 5359 B Humboldt near Harris Harris Comment
  RSA54930  Poa macrantha W. A. Silveus 1938-7-10 6912 Humboldt North of Eureka Comment
  HSC98530  Poa pratensis subsp. pratensis Cara Witte 2007-7-8 442 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  HSC102087  Poa secunda subsp. secunda M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 990 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC98601  Poa secunda subsp. secunda Cara Witte 2007-6-4 183 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UCD91730  Poa secunda subsp. secunda A. H. Murphy 1947-4-2 s.n. Humboldt 2 miles S of Blocksburg. Comment
  HSC10807  Poa trivialis R. D. Zortman 1963-5-15 45 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  HSC10808  Poa trivialis E. W. Styskel 1963-5-19 42 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 305 Comment
  UC249655  Polygonum amphibium var. emersum Joseph P. Tracy 1922-9-3 6115 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 91 Comment
  UC1198084  Polygonum amphibium var. stipulaceum Joseph P. Tracy 1921-8-7 5864 Humboldt Stone Lagoon Northern Coast Region 3 Comment
  HSC64421  Polygonum aviculare J. P. Smith 1971-10-9 5048 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  UC1198074  Polygonum bistortoides Joseph P. Tracy 1919-9-18 5242 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC30051  Polygonum convolvulus Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  UC1198076  Polygonum davisiae Joseph P. Tracy 1932-7-12 10482 Humboldt Brett Hole Trinity Summit (head) 1828 Comment
  UC1192316  Polygonum hydropiper Malcolm A. Nobs and S. Galen Smith 1949-8-11 1336 Humboldt Stone Lagoon; marsh on e shore Comment
  UC175823  Polygonum lapathifolium Joseph P. Tracy 1912-10-20 4008 Humboldt Alton Northern Coast Region (bed of dried-up slough) 30 Comment
  POM312530  Polygonum lapathifolium S. Galen Smith, Malcolm A. Nobs 1949-8-9 1232 Humboldt Marshy pond on Southern side of the town of Blue Lake Comment
  UC205473  Polygonum minimum Joseph P. Tracy 1919-9-18 5235 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  HSC33752  Polygonum paronychia A. Montalvo 1975-5-24 283 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  POM319269  Polygonum paronychia Patricia Wilder 1968-8-21 4416 b Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  RSA246682  Polygonum paronychia Robert F. Thorne, Percy C. Everett 1965-8-5 35163 Humboldt Samoa Dunes. 3 Comment
  UC1198086  Polygonum persicaria Joseph P. Tracy 1932-9-16 10798 Humboldt Little River; at mouth 6 Comment
  HSC98594  Polygonum phytolaccifolium Cara Witte 2007-7-11 506 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  JEPS51274  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1930-7-17 9010 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  CDA37208  Polygonum polystachyum B. Villegas, Bruce Bryan 2009-10-6 s.n. Humboldt Near Trinidad; Patricks Point Drive at Seawood Drive, east of Hwy 101. Comment
  SDSU19201  Polypodium calirhiza Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3015 Humboldt Six Rivers National Forest. From Hwy 299, take Titlow Hill Road (at Berry Summit) ca. 1.7 miles south. Roadcut, north side of road. Ca. 1.4 aerial miles west-northwest of Horse Mtn. Radio Tower. 963 Comment
  SEINET182509 Image available Polypodium glycyrrhiza H. E. Parks 1924-6-1 2837 Humboldt Lawrence Creek Comment
  HSC1111  Polypodium glycyrrhiza Gene S. Van Horn 1962-1-6 7 Humboldt 9 mi. E of Yager Cr. bridge in Carlotta, on Hwy. 36 between highway and Van Duzen river 152 Comment
  CAS-BOT-BC72085  Polypodium scouleri W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  HSC95649  Polypodium scouleri Andrea Pickart 2002-4-5 40 Humboldt Lanphere Dunes 0 Comment
  SEINET200797 Image available Polypodium scouleri Frank C. Gregory 1923-8-4 Humboldt Eureka 61 Comment
  UCD136910  Polypodium scouleri Linda M. Barker 1976-3-11 1327 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  UC906716  Polypodium scouleri Joseph P. Tracy 1942-7-26 17291 Humboldt headwater of Grizzly Creek (Redwood House road) 609 Comment
  CAS-BOT-BC233075  Polypogon interruptus Henry M. Pollard 1946-8-10 s.n. Humboldt Roadside, S of Klamath River and E of Perch Creek, Orleans region Comment
  LA10109  Polypogon interruptus H. S. Yates; 1936-6-16 5678 Humboldt 1 mi. NE of Samoa 3 Comment
  RSA129382  Polypogon interruptus H. S. Yates 1936-6-16 5678 Humboldt 1 mile NE of Samoa 3 Comment
  UC1145087  Polypogon maritimus Joseph P. Tracy 1938-7-11 16048 Humboldt near Samoa (sand dunes); on Humboldt Bay, near Samoa 6 Comment
  CHSC31286  Polypogon monspeliensis Mark Stopher 1980-7-18 121 Humboldt On banks of Elk River, south of Eureka. Comment
  JEPS24330  Polystichum californicum W. L. Jepson 1922-9-10 9460 Humboldt Garberville Comment
  HSC99526  Polystichum lonchitis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 190 Humboldt Near North Trinity Mtn, along trail to Water Dog Lakes, Six Rivers National Forest. 1372 Comment
Read comments
May 14 2014
  HSC95887  Polystichum munitum Will Ferrand 2002-4-20 26 Humboldt 9 mi. E of int. of West End Rd. and Warren Cr. Rd. 67 Comment
  JEPS64560  Populus trichocarpa W. L. Jepson 1902-8-4 2147 Humboldt Petrolia on the Mattole River, Petrolia (on the Mattole River, Expedition from Ukiah to the Hupa Indian Reservation) Comment
  UC1099846  Potamogeton natans Malcolm A. Nobs, S. Galen Smith 1949-8-9 1229 Humboldt 1 mi n of Arcata (at junction of Highways 101 and 299); Mad River Valley Comment
  UC1103513  Potamogeton natans Joseph P. Tracy 1928-9-2 8498 Humboldt Fruitland 609 Comment
  HSC36293  Potamogeton nodosus James K. Griswold 1974-5-18 Humboldt Westend Rd., across from Humboldt Flakeboard Comment
  UC1099821  Potamogeton pectinatus Malcolm A. Nobs, S. Galen Smith 1949-8-3 1162 a Humboldt 1 mi s of Fields Landing; Eel River Valley Comment
  CAS-BOT-BC454066  Potamogeton pusillus subsp. pusillus S. K. Harris 1938-9-12 s.n. Humboldt Backwater of Eel River, near Fernbridge Comment
  HSC18730  Potentilla anserina subsp. pacifica J. F. Knezevich 1967-5-23 453 Humboldt N of Trinidad at Big Lagoon 15 Comment
  CAS-BOT-BC143073  Potentilla anserina subsp. pacifica Henry M. Pollard 1947-8-26 s.n. Humboldt Klamath Riverbed, Ferrian's Ranch (nr. Orleans) Comment
  HSC93520  Potentilla anserina subsp. pacifica Gordon Leppig 1998-6-25 855 Humboldt McKinleyville, Mad River Estuary at end of Murray Rd. 0 Comment
  RSA647543  Potentilla drummondii Marion P. Harthill 1972-7-19 1319 Humboldt Fish Lake 1067 Comment
  JEPS47215  Potentilla gracilis Joseph P. Tracy 1932-7-10 10387 Humboldt wet meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC279095  Potentilla gracilis var. gracilis H. E. Parks 1925-6-17 Humboldt Kneeland Comment
  HSC15471  Prosartes smithii D. E. Anderson 1962-3-24 1946 Humboldt Along Turner Rd. Comment
  HSC59658  Prosartes smithii Marla J. Carollo 1979-4-10 4 Humboldt Side of the logging trail behind dorms of HSU campus Comment
  SEINET12044958  Prosartes smithii H. C. Cantelow 1936-1 s.n. Humboldt 11 mi E of Orick Comment
  HSC14302  Prunella vulgaris William J. Ferlatte, B. D. Rogers 1966-6-15 2093 Humboldt Near Bridgeville Comment
  HSC26841  Prunella vulgaris Thomas W. Nelson 1971-1-8 321 Humboldt Ferndale next to Co. Fair Grounds Comment
  BLMAR261  Prunella vulgaris subsp. lanceolata Jennifer Anthony-Wheeler 1998-7-14 261 Humboldt King range, strawberry rock grazing allotment 280 Comment
  SD93020  Prunella vulgaris var. lanceolata W. Bertsch 1953-7-30 220 Humboldt Highway 101 near Dyerville. 60 Comment
  CAS-BOT-BC159982  Prunus emarginata Doris K. Kildale 1926-9-5 2620 Humboldt Lasseck's Peaks - on trail to Red Peak 1661 Comment
  UC666844  Prunus emarginata Joseph P. Tracy 1933-6-13 12571 Humboldt Hoopa Mountain, near summit on road from Hoopa westward to Bair's Hoopa Mountain 1066 Comment
  CDA3914  Prunus laurocerasus Gordon Leppig 2000-4-12 1291 Humboldt Behind Humboldt University, west of Fern Lake, Arcata. Comment
  CAS-BOT-BC154739  Prunus virginiana var. demissa Doris K. Kildale 1926-5-20 3240 Humboldt Bug Creek 792 Comment
  JEPS20479  Pseudognaphalium ramosissimum Joseph P. Tracy 1936-8-24 15169 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  CAS-BOT-BC80111  Pseudotsuga menziesii Doris K. Kildale 1925-12-27 1463 Humboldt Kneeland Prairie 762 Comment
  HSC1582  Pseudotsuga menziesii var. menziesii W. R. Rogers 1965-7-1 300 Humboldt Hwy. 299 4 mi E of Blue Lake Comment
  HSC70640  Pseudotsuga menziesii var. menziesii R. York 1980-5-18 593 Humboldt Near Black Mtn. 792 Comment
  HSC74451  Pseudotsuga menziesii var. menziesii Gail Newton 1980-8-10 1991 Humboldt Near Blake Mtn. 1798 Comment
  UC915719  Pseudotsuga menziesii var. menziesii W. L. Jepson June 1903 48 Humboldt Briceland Comment
  UC582501  Psilocarphus tenellus Joseph P. Tracy 1927-7-4 8236 Humboldt Iaqua 609 Comment
  HSC76305  Pteridium aquilinum var. pubescens Denis Kearns 1981-7-22 308 Humboldt Near Whiteys Peak. 1487 Comment
  HSC41289  Pteridium aquilinum var. pubescens Brad Klipfel 1974-7-27 483 Humboldt Horse Mtn. in draw to the N of the towers Comment
  UC249782  Pteridium aquilinum var. pubescens Joseph P. Tracy 1923-10-28 6589 Humboldt Bald Mt.; Northern Coast Ranges 762 Comment
  UCD117813  Pyrola aphylla K. Esau 1934-5-7 s.n. Humboldt Above Fort Seward. 609 Comment
  JEPS58852  Pyrola asarifolia Milo S. Baker 1923-7-20 63 Humboldt Redwood House Road Comment
  UC562457  Pyrola asarifolia Joseph P. Tracy 1936-6-28 15016 Humboldt Bald Mountain at Lake Prairie 1066 Comment
  CAS-BOT-BC462872  Pyrola asarifolia J. W. Tilden 1946-6-21 s.n. Humboldt Bluff Creek Comment
  HSC49999  Pyrola dentata M. A. Baker 1979-6-7 792 Humboldt 1250 Comment
  UC153965  Pyrola picta Joseph P. Tracy 1909-7-31 3047 Humboldt Kneeland Prairie 762 Comment
  HSC37825  Quercus chrysolepis Thomas W. Nelson, Jane P. Nelson 1976-2-21 2251 Humboldt Tish-Tang campground Comment
  UC503089  Quercus chrysolepis H. E. Parks and Joseph P. Tracy 1931-5-17 9413 Humboldt opposite Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC94309  Quercus garryana Henry M. Pollard 1944-9-1 s.n. Humboldt near Orleans Comment
  UC1196524  Quercus garryana Joseph P. Tracy 1924-8-31 6857 Humboldt Klamath River at Bluff Creek Northern Coast Ranges 91 Comment
  CAS-BOT-BC105163  Quercus kelloggii Doris K. Kildale 1927-4-17 3093 Humboldt Briceland Bridge, 1/2 mile W of Gaberville 114 Comment
  UC1196513  Quercus sadleriana Joseph P. Tracy 1932-7-15 10579 Humboldt near Corral Prairie; Klamath Mountains 1524 Comment
  HSC102068  Quercus vacciniifolia M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 970 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC37839  Quercus vacciniifolia Thomas W. Nelson, Jane P. Nelson 1976-2-21 2245 Humboldt Beside the Hoopa-Redwood Valley Rd. ca. 5 mi. W of Hoopa Comment
  HSC99036  Quercus vacciniifolia Cara Witte 2008-9-27 1047 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. At end of the road. 1407 Comment
  UC164804  Rafinesquia californica Joseph P. Tracy 1901-8-2 1243 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CAS-BOT-BC379460  Ranunculus alismifolius Volney Rattan 1883-6-1 s.n. Humboldt Landslide ponds on the divide between Mad River and Redwood Creek Comment
  HSC26634  Ranunculus alismifolius var. alismifolius Thomas W. Nelson 1971-5-31 452 Humboldt Vernal pond Comment
  HSC74708  Ranunculus aquatilis var. aquatilis Gail Newton 1981-8-6 2400 Humboldt Near Humbug Creek 1256 Comment
  JEPS5885  Ranunculus bulbosus Joseph P. Tracy 1938-7-15 16080 Humboldt near Grizzly Bluff; Eel River Valley 15 Comment
  CAS-BOT-BC378854  Ranunculus californicus var. californicus Doris K. Kildale 1927-3-20 2917 Humboldt Philipsville, south fork of Eel River Comment
  CAS-BOT-BC378925  Ranunculus californicus var. californicus Alice Eastwood 1907-4-21 27 Humboldt Trinidad Comment
  HSC18212  Ranunculus flammula var. ovalis R. D. Modafferi 1965-5-13 71 Humboldt 2.3 mi. N of Trinidad on Trinity St. 305 Comment
  POM269618  Ranunculus flammula var. ovalis Joseph P. Tracy 1934-7-30 13499 Humboldt Dry Lagoon (Along coast in front of South End of Stone Lagoon.) 3 Comment
  UC162341  Ranunculus muricatus Joseph P. Tracy 1911-5-17 3185 Humboldt Eureka Northern Coast Region 0 Comment
  UC162861  Ranunculus occidentalis Joseph P. Tracy 1903-5-24 1908 Humboldt Alder Point Northern Coast Ranges, Eel River 152 Comment
  HSC18163  Ranunculus occidentalis var. occidentalis E. W. Styskel 1963-5-19 36 Humboldt 3 mi. SE of Korbel, on Snow Camp Rd. 290 Comment
  HSC39246  Ranunculus occidentalis var. occidentalis J. P. Smith, J. O. Sawyer 1976-5-2 8633 Humboldt Redwood Creek-Hoopa Rd., 0.6 mi. W of its junction with Loop Rd. in Hoopa Reservation 122 Comment
  UC1196248  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1921-6-12 5827 Humboldt Butler Valley Northern Coast Ranges 152 Comment
  UC1196254  Ranunculus orthorhynchus var. orthorhynchus J. P. Tracy 1901-5-12 1075 Humboldt Immediate vicinity of Eureka 0 Comment
  UC1196256  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1912-6-2 3641 Humboldt Eureka Northern Coast Region 0 Comment
  RSA85298  Ranunculus orthorhynchus var. platyphyllus F. W. Peirson 1923-7-11 3724 Humboldt 7 miles N of Arcata. Comment
  UCD97062  Ranunculus orthorhynchus var. platyphyllus R. N. Raynor 1935-5-22 s.n. Humboldt Fort Seward. Comment
  CDA3497  Ranunculus parviflorus E. C. Whitney 1962-5-29 Humboldt Millsap property, Pepperwood. 0 Comment
  HSC56305  Ranunculus uncinatus Overton, Butler 1979-8-2 12613 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  BLMAR510  Ranunculus uncinatus Jennifer Anthony-Wheeler 2009-5-9 510 Humboldt Headwaters Forest Reserve, HRC U08 road; spur to Elk River 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
  HSC28225  Raphanus sativus Thomas W. Nelson 1971-4-12 374 Humboldt Hookton Rd. at the junction of Copenhagen Rd. Comment
  RSA34322  Rhamnus californica Doris K. Kildale 1926-8-15 2511 Humboldt Willow Creek Flat Comment
  RSA7737  Rhamnus californica subsp. occidentalis Doris K. Kildale 1928-10-7 6748 Humboldt Willow Creek Canyon, 7 miles W of Trinity River Comment
  CAS-BOT-BC55966  Rhamnus ilicifolia L. R. Abrams 1927-9-11 12141 Humboldt Fork Klamath and Shasta Rivers Comment
  SEINET7716093  Rhododendron californicum Unknown Humboldt Humboldt Bay Comment
  RSA254755  Rhododendron macrophyllum Thomas W. Nelson 1974-5-7 1239 Humboldt Beside the old Kneeland Rd. Comment
  SD51270  Rhododendron macrophyllum Darley F. Howe 1961-8-2 3120 Humboldt 7.7 miles east of Orick on Bald Mountain Road. 609 Comment
  UCD20673  Rhododendron macrophyllum A. T. Leiser 1980-7-9 s.n. Humboldt Humboldt County, North of Orick, Hwy 101 reroute, May Creek Watershed +- 1000'. Comment
  HSC7883  Rhododendron occidentale var. paludosum J. Pursell 1964-10-6 1062 Humboldt Big Lagoon Bog Comment
  UC154125  Ribes inerme var. klamathense Joseph P. Tracy 1908-6 2767 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC173365  Ribes lobbii J. H. Thomas 1949-6-13 912 Humboldt Along trail between Le Perron Flat and Whitey's Peak. Six Rivers National Forest. (East of town of Orleans) 1371 Comment
  HSC103237  Ribes lobbii Jade Paget-Seekins 2010-6-22 22 Humboldt Horse Mountain. 10 miles up Titlow Hill Road, on Forest Route 1. 1591 Comment
  HSC48833  Ribes lobbii Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 46 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  RSA0021640  Ribes malvaceum E. K. Balls, P. C. Everett 1953-10-11 18627 Humboldt S. boundary Eel River Lodge, 4.3 mi. N of Richardson s Grove, Highway 101. 152 Comment
  HSC102025  Ribes marshallii M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 926 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  HSC102610  Ribes marshallii M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1597 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC100493  Ribes menziesii Carl C. Marshall Apr 1886 134 Humboldt Everywhere about the bay. Comment
  UC902081  Ribes roezlii var. cruentum Joseph P. Tracy 1949-7-19 18378 Humboldt Grouse Mountain 1280 Comment
  RSA0024587  Ribes roezlii var. cruentum Lyman Benson 1929-7-19 1872 Humboldt Ridge between Bull Creek and Matole [Mattole] River. Comment
  HSC100094  Ribes roezlii var. roezlii J. P. Smith, J. O. Sawyer 2010-3-22 12711 Humboldt Along Hwy. 36, E of Dinsmore. 780 Comment
  CAS-BOT-BC212521  Ribes sanguineum Harley P. Chandler 1901-6-1 1287 Humboldt Hupa Indian Reservation 1097 Comment
  HSC55619  Ribes sanguineum Overton, Butler 1979-7-23 9536 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  CAS-BOT-BC144677  Ribes sanguineum var. glutinosum Ira L. Wiggins 1930-6-25 4617 Humboldt Sand dunes 2 miles north of Samoa Comment
  CAS-BOT-BC144683  Ribes sanguineum var. glutinosum Ira L. Wiggins 1930-6-25 4617 Humboldt Sand dunes 2 miles north of Samoa Comment
  CAS-BOT-BC144692  Ribes sanguineum var. glutinosum Carl B. Wolf 1927-8-29 1191 Humboldt 7 mi. s. of Ferndale & Capetown, Bear River Ridge-- Mt. Glen Comment
  HSC34637  Ribes sanguineum var. glutinosum Robert M. Specht 1975-4-9 121 Humboldt 2.5 mi. N of Trinidad on Patricks Point Dr., W side 61 Comment
  HSC90232  Ribes sanguineum var. glutinosum L. Watson, J. Meninga Mar 1991 9 Humboldt Near Manilla, Mad River Slough and Dunes, 300yds W of parking lot, W of trail Comment
  JEPS79968 Image available Ribes sanguineum var. glutinosum Joseph P. Tracy 1949-4-10 18281 Humboldt North Coast Ranges, Redwood Creek, at Berry's Redwood Creek; North Coast Ranges, Redwood Creek 365 Comment
  RSA0018238  Ribes sanguineum var. glutinosum Lyman Benson 1929-7-19 1876 Humboldt Mouth of Matole [Mattole] River. Comment
  HSC65645  Ribes viscosissimum J. P. Smith, J. O. Sawyer 1975-6-2 8208 Humboldt Six Rivers National Forest, W of Goat Hill Comment
  UC1198919  Ribes viscosissimum Joseph P. Tracy 1942-9-6 17308 Humboldt near McKay; South Fork Mountain 1676 Comment
  UC195067  Rigiopappus leptocladus Joseph P. Tracy 1916-6-19 4738 Humboldt near Alder Point; Northern Coast Ranges, Cahto Creek 152 Comment
  HSC84930  Romanzoffia californica R. N. Raynor 1935-4-8 Humboldt Fort Seward Comment
  JEPS1245  Romanzoffia californica Joseph P. Tracy 1924-4-27 6645 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 457 Comment
  UC144104  Romanzoffia californica Joseph P. Tracy 1909-5-16 2970 Humboldt near Trinidad; Northern Coast Ranges 60 Comment
  UCD115287  Rorippa curvisiliqua Malcolm A. Nobs; S. Galen Smith 1949-8-9 1238 Humboldt on southern side of the town of Blue Lake. Comment
  UC14385  Rorippa nasturtium-aquaticum Chestnut and Drew 1888-7-8 Humboldt Arcata Comment
  SD88394  Rorippa nasturtium-aquaticum Darley F. Howe 1972-5-6 Humboldt 1.5 miles north of Phillipsville. Comment
  UC1222308  Rosa Joseph P. Tracy 1950-7-6 19028 Humboldt on the Albee Rd 3 mi s Burr. Valley (along stream) 1066 Comment
  UC161000  Rosa Joseph P. Tracy 1911-7-7 3410 Humboldt 3 mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC667042  Rosa californica Joseph P. Tracy 1933-6-25 12617 Humboldt Camp Grant Eel River (along river) 60 Comment
  BLMAR535  Rosa gymnocarpa Jennifer Wheeler 2009-6-23 535 Humboldt King range, On Paradise Ridge road Comment
  HSC19627  Rosa gymnocarpa R. E. Thill 1965-5-1 23 Humboldt 0.25 mi. from Korbel on the Camp Bauer Rd. Comment
  HSC32946  Rosa gymnocarpa Thomas W. Nelson, James Nelson 1973-5-28 957 Humboldt McKeown Ranch N of Dinsmore Comment
  JEPS48709  Rosa gymnocarpa Hilda W. Grinnell 1932-7-9 1 Humboldt McKay Camp So. Fork Mt. 1676 Comment
  POM275419  Rosa gymnocarpa Lyman D. Benson 1928-7-12 489 Humboldt Weott Ranger Station. Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  RSA166375  Rosa gymnocarpa Robert F. Thorne 1957-9-2 18999 Humboldt Burlington State Park, just S of Weott. 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
  UC467683  Rosa gymnocarpa Mrs. M. H. Manning 1901-6-7 61 Humboldt Hupa Comment
  HSC19626  Rosa gymnocarpa W. R. Rogers 1965-5-15 61 Humboldt Camp Bauer 1/4 mi. Korbel Comment
  UC1199037  Rosa gymnocarpa var. serpentina Joseph P. Tracy 1939-8-16 16404 Humboldt Horse Mountain 1432 Comment
  HSC31638  Rosa nutkana Glenn McGourty 1974-6-1 84 Humboldt Comment
  HSC44122  Rosa nutkana Linda M. Barker, Thomas F. Lyon 1977-5-8 1715 Humboldt 3 mi. W of Arcata in S pasture Comment
  UC1174842  Rosa nutkana var. nutkana P. C. Everett and E. K. Balls 1959-10-25 23973 Humboldt 11.6 mi sw from Ferndale (on Old Coast Rd to Capetown) 243 Comment
  UC902161  Rosa nutkana var. nutkana Joseph P. Tracy 1942-9-20 17320 Humboldt 2 mi s of town Field's Landing 6 Comment
  UC902155  Rosa pisocarpa Joseph P. Tracy 1947-8-24 17890 Humboldt near Box Camp; Trinity Summit 1524 Comment
  HSC48415  Rosa rubiginosa J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9926 Humboldt Ishi Pishi Rd., 2.5 mi. from its junction with Hwy. 96 in Orleans 213 Comment
  UCD113897  Rosa rubiginosa J. A. Delapp 1956-6-14 2 Humboldt California Forest and Range Experiment Station. 3 miles W of upper Mattole School. 152 Comment
  RSA86869  Rubus laciniatus F. W. Peirson 1923-7-10 3755 Humboldt Garberville. Comment
Read comments
Apr 16 2013
  UC902131  Rubus leucodermis Joseph P. Tracy 1947-8-24 17911 Humboldt near Box Camp; Trinity Summit 1524 Comment
  HSC95871  Rubus parviflorus Will Ferrand 2001-6-17 16 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  HSC97656  Rubus parviflorus Kevin Thomas 2004-4-26 17 Humboldt Jacoby Creek Rd. Comment
  NY1043368  Rubus parviflorus D. K. Gillespie 1938-8-6 15397 Humboldt Eureka Comment
  BLMAR240  Rubus pensilvanicus Jennifer Anthony-Wheeler 1997-6-13 240 Humboldt King range, growing at base of N bank of S fork bear creekbed 463 Comment
  CAS-BOT-BC156721  Rubus spectabilis Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka Comment
  HSC19686  Rubus spectabilis D. E. Anderson 1962-2-10 1914 Humboldt 1.0 mi. S of Big Lagoon school along abandoned stretch of Hwy. 101 Comment
  HSC19687  Rubus spectabilis R. E. Hafenfeld 1965-5-9 6 Humboldt 1/4 mi. from County Rd. and Gold Bluff Beach Rd. jct. Comment
  HSC19688  Rubus spectabilis S. J. Hawks 1965-4-3 16 Humboldt Luffenholtz Beach Comment
  UC1541250  Rubus spectabilis H. E. Parks May 1935 5537 Humboldt Trinidad , Trinidad (Spruce Cove) Comment
  HSC100639  Rubus ursinus Carl C. Marshall Mar 1886 138 Humboldt Everywhere. Comment
  UCD17844  Rubus ursinus H. Olmo 8-10 May 1962 62- 31 Humboldt California. Humboldt County: 9 miles east of Carlotta. Comment
  HSC55080  Rumex acetosella G. L. Clifton, Griswold 1979-7-31 11715 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC95749  Rumex acetosella Steven Lee 2004-4-26 33 Humboldt Along Stuart Ave. W of of Alliance Comment
  HSC69627  Rumex acetosella R. Kalal 1980-5-8 32 Humboldt Along Jackson Ranch Rd. 6 Comment
  HSC98701  Rumex acetosella subsp. acetosella Cara Witte 2007-5-21 69 Humboldt White Oak Opening. 1257 Comment
  RSA280496  Rumex conglomeratus Lyman Benson 1998-7-11 s.n. Humboldt Weott Ranger Station, Seaward N Coast, S fork Eel. 61 Comment
Read comments
Aug 16 2013
  HSC64432  Rumex maritimus J. P. Smith 1971-10-6 4941 Humboldt End of Murray Rd. in McKinleyville. Comment
  CAS-BOT-BC239838  Rytidosperma penicillatum Joseph P. Tracy 1942-6-28 17267 Humboldt At Hungry Hollow, on Bald Mountain 609 Comment
  SEINET5337061  Sagina decumbens subsp. occidentalis J. Tracy 1905-4-30 2172 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay Comment
  HSC71114  Sagina procumbens Thomas W. Nelson 1977-6-4 3388 Humboldt HSU campus along B St. along W side of Biology-Engineering Building Comment
  RSA246919  Salicornia virginica R. F. Thorne, P. Everett 1965-8-7 35205 Humboldt Samoa Peninsula. 0 Comment
  CAS-BOT-BC129899  Salix bonplandiana Joseph P. Tracy 1935-6-22 13960 Humboldt Mouth of Larrabee Creek, on Eel River 45 Comment
  UC1196671  Salix eastwoodiae Joseph P. Tracy 1935-7-26 14268 Humboldt meadows at Water Dog Lakes; Trinity Summit 1828 Comment
  CAS-BOT-BC103819  Salix exigua Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01245 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  UC490573  Salix exigua Joseph P. Tracy 1932-7-31 10295 Humboldt mouth of Larrabee Creek Eel R.; Northern Coast Ranges 60 Comment
  UC55406  Salix exigua var. hindsiana Harley P. Chandler June, 1901 1482 Humboldt Klamath R. North Coast Ranges, Klamath R. 365 Comment
  CAS-BOT-BC104102  Salix hindsiana Harold E. Parks 1931-8-25 01061 Humboldt Blue Slide, Van Duzen River 90 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-BC107716  Salix hookeriana Doris K. Kildale 1926-7-11 2364 Humboldt Mouth of Bear River - Capetown Comment
  CHSC9555  Salix hookeriana E. L. Smith 1971-4-6 925 Humboldt Ca. 7 mi s of Eureka at Field's Landing. Comment
  CHSC9659  Salix hookeriana E. L. Smith 1971-8-17 1029 Humboldt Between highway and beach at Trinidad. Comment
  HSC90185  Salix hookeriana Jean Hanson 1980-3-8 2 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  POM219558  Salix hookeriana H. E. Parks 1931-3-24 912 Humboldt Fortuna. Eel River. 10 Comment
  RSA183589  Salix hookeriana R. D. Zortman 1963-3-9 11 Humboldt 5 miles NE of Arcata. S of the Mad River, off Warren Creek Rd. 91 Comment
  UC1225923  Salix hookeriana Joseph P. Tracy 1942-7-26 17297 Humboldt near the Redwood House S. Yaeger Creek 609 Comment
  UC146206  Salix hookeriana J. P. Tracy 1904-4 2036 /2137 Humboldt Immediate vicinity of Eureka 0 Comment
  UC146207  Salix hookeriana J. P. Tracy 1905-4 2392 /2168 Humboldt Immediate vicinity of Eureka 0 Comment
  UC146208  Salix hookeriana J. P. Tracy 1904-4-3 2011 Humboldt Immediate vicinity of Eureka 0 Comment
  UC275495  Salix hookeriana Joseph P. Tracy 1925-11-1 7303 Humboldt Shiveley Northern Coast Ranges, Shiveley 60 Comment
  UC469112  Salix hookeriana Joseph P. Tracy 1931-8-23 9620 Humboldt sand dunes near Samoa; Northern Coast Region, on Humboldt Bay 6 Comment
  UC481334  Salix hookeriana Harold E. Parks Aug 1931 1057 Humboldt Bishop Pine Lodge Trinidad 150 Comment
  UC481390  Salix hookeriana Harold E. Parks 1931-3-24 915 Humboldt Trinidad 90 Comment
  UC511977  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1251 Humboldt 2 mi e of Redwood Hwy. Engelhart gravel pit (above Blue Lake Rd., floodplain of Mad River); Mad River Comment
  UC512001  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1236 Humboldt Blue Slide Van Duzen River 91 Comment
  UC512115  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1202 Humboldt 4 1/2 mi s Trinidad; Little River Lagoon Comment
  UCD111020  Salix hookeriana Carleton R. Ball; Harold E. Parks and Joseph P. Tracey 1932-5-11 01210 a Humboldt Little River Lagoon, 4 1/2 miles south of Trinidad. Comment
  UCD111022  Salix hookeriana Carleton R. Ball; Harold E. Parks and Joseph P. Tracey 1932-5-11 01210 b Humboldt Little River Lagoon, 4 1/2 miles south of Trinidad. Comment
  POM218953  Salix laevigata H. P. Bracelin 1931-5-1 271 Humboldt Sylvandale, between Miranda and Meyers. S Fork of Eel River. Comment
  UC492482  Salix lasiandra subsp. lasiandra Harold E. and Susan T. Parks 1932-5-12 1150 Humboldt swamp near bridge at mouth of Maple Creek (Big Lagoon); Big Lagoon Comment
  JEPS14790  Salix lasiandra var. lasiandra Joseph P. Tracy 1933-7-16 12772 Humboldt at McKay Camp S. Fork Mt.; Northern Coast Ranges 1676 Comment
  CAS-BOT-BC107596  Salix lasiolepis Harold E. Parks; Joseph P. Tracy 1933-3-19 11006 Humboldt On Van Duzen River, two miles west of Bridgeville 228 Comment
  CAS-BOT-BC107600  Salix lasiolepis Joseph P. Tracy 1933-3-19 10931 Humboldt Blue Slide, on Van Duzen River 91 Comment
  CAS-BOT-BC107607  Salix lasiolepis Joseph P. Tracy; Harold E. Parks; Carleton R. Ball 1932-5-17 1323 Humboldt On west slpe of Berry's Mountain, east of Redwood Creek, on Trinity Highway 762 Comment
  HSC93741  Salix lasiolepis Gordon Leppig 1998-4-7 734 Humboldt Horse Mtn., 854 Comment
  POM219249  Salix lasiolepis H. E. Parks, Susan T. Parks 1931-8-15 1079 Humboldt Blue Slide. Van Duzen River. 100 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
  UC469427  Salix lasiolepis Joseph P. Tracy 1931-9-7 9628 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC481178  Salix lasiolepis Harold E. and Susan T. Parks 1931-8-15 1079 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 100 Comment
  UC481181  Salix lasiolepis Harold E. Parks 1931-8-25 1059 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 90 Comment
  UC504026  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1319 Humboldt Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  UC504027  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1320 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  UC504028  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1320 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  UC506374  Salix lasiolepis Joseph P. Tracy 1933-4-9 10964 Humboldt Bridgeville 228 Comment
  UC511981  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1247 Humboldt Van Duzen R. at Blue Slide; Van Duzen R., Blue Slide 91 Comment
  UC512033  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1326 Humboldt e Redwood Creek (w slope of mt., on Trinity Hwy); Berry's Mountain 762 Comment
  UC526717  Salix lasiolepis Joseph P. Tracy 1934-7-9 13356 Humboldt Dobbyn Creek Northern Coast Ranges, Dobbyn Creek 152 Comment
  RSA34288  Salix lucida subsp. lasiandra Doris K. Kildale 1927-5-13 3178 Humboldt Redwood Creek at Berry's Comment
  CAS-BOT-BC125612  Salix melanopsis W. R. Dudley 1899-6-21 s.n. Humboldt At the junction, the south and north forks of Eel River Comment
  CAS-BOT-BC125614  Salix melanopsis Doris K. Kildale 1925-6-27 765 Humboldt Yager Creek - near mouth 30 Comment
  JEPS12938  Salix melanopsis Joseph P. Tracy 1931-9-7 9646 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  LA208879  Salix melanopsis Mrs. H. P. Bracelin; 1931-5-2 283 Humboldt E of Redwood Hwy.; 6 km. S of Alton 20.0 Comment
  POM219691  Salix melanopsis H. E. Parks 1931-5-14 960 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  CAS-BOT-BC129140  Salix scouleriana H. E. Parks 1933-1-24 1352 Humboldt Spruce Cove (Parks Ranch), Trinidad 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
  SBBG57985  Salix scouleriana H. E. Parks 1931-5-12 951 Humboldt Bishop Pine Lodge, Trinidad 150 Comment
  UC1173583  Salix scouleriana Joseph P. Tracy 1935-7-26 14256 Humboldt at Water-dog Lakes Trinity Summit 1889 Comment
  UC1196694  Salix scouleriana Joseph P. Tracy 1932-10-12 10876 Humboldt along S. Fork Eel R. Miranda; Northern Coast Ranges, S. Fork Eel R., Miranda 91 Comment
  UC1196696  Salix scouleriana Joseph P. Tracy 1924-1-27 6599 Humboldt along Eel R. from S. Fork to Scotia (South Fork Station); Northern Coast Ranges, Eel R. 60 Comment
  UC212995  Salix scouleriana Joseph P. Tracy 1919-9-23 5283 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  UC519353  Salix scouleriana Joseph P. Tracy 1933-8-30 13056 Humboldt Grouse Mt. North Coast Ranges, Grouse Mt. 1524 Comment
  CAS-BOT-BC128956  Salix sitchensis Harold E. Parks 1931-3-25 903 Humboldt Orick, Redwood Creek [Van Duzen River] 6 Comment
  HSC37885  Salix sitchensis Thomas W. Nelson 1976-4-3 2287 Humboldt Van Duzen River at Grizzley Creek Comment
  RSA171961  Salix sitchensis Robert F. Thorne 1957-9-2 18989 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC176185  Salix sitchensis Joseph P. Tracy 1913-3-9 4013 Humboldt Van Duzen R. near Hydesville; Northern Coast Region, Van Duzen R. 60 Comment
  UC481274  Salix sitchensis Harold E. Parks 1931-5-28 1026 Humboldt Little River Lagoon Comment
  UC492342  Salix sitchensis Harold E. and Susan T. Parks 1932-4-12 1111 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 90 Comment
  JEPS12746  Sambucus mexicana W. L. Jepson 1932-7-24 16390 Humboldt Mail Ridge 914 Comment
  HSC58198  Sambucus nigra subsp. caerulea G. L. Clifton, Griswold 1979-8-2 12300 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC3971  Sambucus racemosa var. racemosa R. A. Rasp 1964-5-20 44 Humboldt HSU campus, beside Jolly Giant Creek. Comment
  UC28612  Sambucus racemosa var. racemosa J. Burtt Davy 1899-6-12 5480 Humboldt Camp Grant North Coast Ranges, Eel River Comment
  UC484082  Sambucus racemosa var. racemosa C. B. Wolf 1930-10-26 1765 Humboldt along coastal bluffs 1 mi s Trinidad 91 Comment
  UCSB22664  Sambucus racemosa var. racemosa Jensen, Karen 1965-4-14 Humboldt Along Tompkin's Hill Rd., 2.7 mi. from Hwy. 101 turnoff, northeast of Fortuna 91 Comment
  HSC19726  Sanguisorba minor D. E. Anderson 1965-5-1 3577 Humboldt Along Trinity River at Hoopa Comment
  HSC104438  Sanguisorba officinalis J. Martin, Bianca Hayashi, Cheri Sanville 2012-8-28 Humboldt Northern end of Christmas Prairie Lake Comment
  CHSC68485  Sanicula arctopoides Vernon H. Oswald 1997-4-10 8330 Humboldt Elk Head, north end of Trinidad State Beach. Along the edge of the bluffs overlooking the ocean. 30 Comment
  UC1197103  Sanicula bipinnatifida Joseph P. Tracy 1923-4-1 6173 Humboldt near Blue Lake (Northern Coast Ranges); Northern Coast Ranges 304 Comment
  UC1197105  Sanicula bipinnatifida Joseph P. Tracy 1926-5-9 7460 Humboldt Northorn Coast Ranges, Valley of South Yager Creek Valley of South Yager Creek; Northorn Coast Ranges, Valley of South Yager Creek 762 Comment
  HSC81923  Sanicula crassicaulis Thomas W. Nelson, Jane P. Nelson 1979-7-3 4963 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek roads. 610 Comment
  UC1022528  Sanicula crassicaulis C. Ritchie Bell 1952-5-14 3 X456 Humboldt Patrick Point State Park Comment
  HSC55720  Sanicula graveolens G. L. Clifton, Terry Griswold 1979-7-26 10168 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  HSC39422  Sanicula graveolens Thomas W. Nelson, Jane P. Nelson 1976-6-15 2731 Humboldt Growing on FS road N of Alder Springs 1524 Comment
  HSC55296  Sanicula tuberosa Terry Griswold, Butler 1979-7-10 6344 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC183564  Sanicula tuberosa Joseph P. Tracy 1912-7-31 3943 Humboldt Northern Coast Ranges, Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1524 Comment
  UC1239688  Satureja douglasii Joseph P. Tracy 1912-7-4 3733 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC1601285  Satureja douglasii Joseph P. Tracy 1923-6-20 6315 Humboldt White Thorn Valley 304 Comment
  JEPS79978  Saxifraga marshallii Joseph P. Tracy 1941-3-26 16834 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC441183  Saxifraga mertensiana Joseph P. Tracy 1911-6-4 3217 Humboldt Along Little River. 5 miles from the coast 121 Comment
  UC314581  Scandix pecten-veneris Joseph P. Tracy 1923-6-20 6342 Humboldt Northern Coast Ranges, Garberville Garberville; Northern Coast Ranges, Garberville 121 Comment
  HSC69628  Schoenoplectus acutus var. occidentalis R. Kalal 1980-5-4 31 Humboldt City of Arcata oxidation ponds 0 Comment
  HSC90765  Schoenoplectus americanus Gail Newton 1982-6-10 3598 Humboldt Elk River Wildlife Area, Eureka Comment
  UC963872  Scirpus cernuus H. E. Parks and S. T. Parks August, 1943 24244 Humboldt Spruce Cove North Coast Ranges, , Trinidad (Trinidad) 60 Comment
  CAS-BOT-BC110926  Scirpus microcarpus Joseph Prince Tracy 1934-6-21 13242 Humboldt Near Fields Landing 6 Comment
  HSC7293  Scirpus microcarpus J. W. Johnson 1962-4-21 1282 Humboldt Arcata, at Miller Farm, Samoa Peninsula Comment
  HSC7464  Scirpus microcarpus Paul Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  HSC92543  Scoliopus bigelovii S. Morrissette, J. Williams, K. Kopper 1994-3-28 5 Humboldt On Lost Coast Trail, 2.25 mi. S of Bear Harbor Camp in J. Smeaton Chase Grove Comment
Read comments
Mar 9 2013
  UCD124815  Scrophularia californica Linda M. Barker 1976-5-13 1473 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  UC416677  Scutellaria antirrhinoides M. H. Manning 1901-5-26 93 Humboldt near Hupa Comment
  JEPS62895  Scutellaria californica Lincoln Constance 1934-6-27 936 Humboldt on s side of Eel River (near it's junction with the South Fork, at end of railroad bridge, 1/2 mi nw of South Fork P.O and R. R. Station); Bull Creek Region, Eel River Comment
  UC154010  Scutellaria tuberosa Joseph P. Tracy Jul 27 1908-Jul 30 1908 2717 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC100456  Sedum Carl C. Marshall Jun 1885 100 Humboldt Pine Creek Ridge. Comment
  JEPS29013  Sedum divergens J. P. Tracy 1950-8-8 19294 Humboldt watershed Tish-Tang-a-Tang Creek (just below and w of Trinity Summit, head of Croghan Hole); hd Croghan Hole, w of Trinity Summit, Tish-Tang-a-Tang Creek 1706 Comment
  HSC66822  Sedum laxum subsp. flavidum M. A. Baker 1980-7-11 2769 Humboldt Near Red Mtn. 1341 Comment
  HSC79271  Sedum laxum subsp. flavidum D. K. Imper 1984-5-17 Humboldt Hogback Ridge W of FS6N06, 1.0 mi. N of junction with 5N01 1341 Comment
  HSC59361  Sedum laxum subsp. heckneri M. A. Baker 1979-7-8 621 Humboldt 2 km S of the junction of the roads to Blue Creek Mtn. and Onion Lake 1400 Comment
  JEPS26915  Sedum laxum subsp. heckneri Wayne Roderick 1961-7-10 61 .989 Humboldt 6.6 mi n Orleans (Klamath River, 1.4 mi s of Siskiyou County line (Somesbar)); Klamath River, n of Orleans 152 Comment
  UC169908  Sedum laxum subsp. heckneri Harley P. Chandler June, 1901 1439 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  UC302106  Sedum laxum subsp. heckneri Joseph P. Tracy 1926-6-20 7647 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  UC1225752  Sedum radiatum Joseph P. Tracy 1948-5-31 18000 Humboldt Harris Harris (on rock ledge in shade) 762 Comment
  UC169907  Sedum radiatum Harley P. Chandler June, 1901 1379 Humboldt Hupa Valley North Coast Ranges, Hupa Indian Reservation, Hupa Valley (Hupa Indian Reservation, North Coast Ranges) 152 Comment
  UC302107  Sedum radiatum Joseph P. Tracy 1926-7-5 7726 Humboldt Valley of South Yager Creek Northern Coast Ranges, Valley South Yager Creek 762 Comment
  CAS-BOT-BC63826  Sedum spathulifolium Elizabeth Parsons Hawyer 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC63825  Sedum spathulifolium Doris K. Kildale 1927-5-15 3171 Humboldt Petralia. Mattole River. Comment
  HSC59656  Sedum spathulifolium var. pruinosum Michael Dalke 1979-5-10 78 Humboldt Elk Head, 1/2 mi. W of Stagecoach Dr. at College Cove 30 Comment
  CDA34903  Selaginella kraussiana Dana York, Adrian York & Noah York 2011-4-2 3019 Humboldt Arcata; eastern edge of Humboldt State University Campus in the community forest, along inlet creek to Fern Lake. Comment
  UC1239800  Selaginella wallacei Joseph P. Tracy 1913-5-4 4062 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC906717  Selaginella wallacei Harold E. Parks and Joseph P. Tracy 1942-5-15 11546 Humboldt half way between Miranda and Garberville 152 Comment
  CAS-BOT-BC364018  Senecio integerrimus var. major L. B. Kildale 1928-5-27 5957 Humboldt Kneeland Prairie 853 Comment
  UC249532  Senecio integerrimus var. major Joseph P. Tracy 1922-6-12 6087 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  CAS-BOT-BC364017  Senecio integerrimus var. major Alice Eastwood; John Thomas Howell 1937-6-23 4840 Humboldt 9 miles from Kneeland on road to Yager Comment
  UC1223155  Senecio integerrimus var. major Joseph P. Tracy 1950-5-6 18638 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1223153  Senecio sylvaticus Joseph P. Tracy 1941-8-17 16992 Humboldt near High Prairie (Bald Mountain); Bald Mountain Comment
  UCSC000817  Senecio sylvaticus H. L. Person 1932-7-18 s.n. Humboldt Eureka, Freshwater, Forest: T4NRIE Comment
  HSC56435  Senecio triangularis Griswold, Butler 1979-7-12 7150 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC57449  Senecio triangularis G. L. Clifton, Griswold 1979-7-26 10262 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  HSC57636  Senecio triangularis G. L. Clifton, Griswold 10794 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1814 Comment
  HSC12956  Sequoia sempervirens M. Athey, D. La Conte 1970-11-28 12 Humboldt HSU campus Comment
  HSC91941  Sequoia sempervirens E. Mackey 1987-2-5 Humboldt Patrick's Point State Park Comment
  MACF022873  Sequoia sempervirens Trudy R. Ericson 1978-9-3 964 Humboldt 3 mi. east of Carlotta on St. 36 60 Comment
  RSA175208  Sequoia sempervirens Robert F. Thorne 1957-9-2 18996 Humboldt Burlington State Park, just S of Weott. Comment
  UC1530712  Sequoia sempervirens R. W. Becking 1984-9-23 Humboldt Federation of Women's Grove Humboldt Co. Weott, Humboldt Redwoods State Park, Federation (Humboldt Co. Weott <sic>, Humboldt Redwoods State Park) Comment
  UC275473  Sequoia sempervirens Joseph P. Tracy 1925-3-15 6945 Humboldt Blue Slide on Van Duzen River; Northern Coast Region 30 Comment
  UC709422  Sequoia sempervirens Joseph P. Tracy 1941-3-9 16804 Humboldt Camp Grant 48 Comment
  SEINET11737925  Sequoia sempervirens J. P. Tracy 1950-1 19387 Humboldt At Park's place, Trinidad 61 Comment
  BLMAR388  Sericocarpus oregonensis Jennifer Anthony-Wheeler 2004-9-1 388 Humboldt Horse Mtn, 18 miles up titlowhill rd 1584 Comment
  CDA14148  Setaria parviflora P. Haggard, G. Leppig 1998-2-4 Humboldt East of Arcata on North Bank Rd. above Mad River immed. E of Azalea Reserve. Stand approx. 25' in length, growing in recently disturbed area. Perennial, short-rhizomatous. 0 Comment
  CAS-BOT-BC205573  Sidalcea malachroides Alice Eastwood; John Thomas Howell 1937-6-23 4856 Humboldt 8 miles from Korbel on road to Maple Creek Comment
  RSA168963  Sidalcea malachroides Joseph P. Tracy 1950-7-12 19034 Humboldt Butter Valley Road, 2 miles east of Cameron Hill jct. near Kneeland. Comment
  UC1197962  Sidalcea malachroides Joseph P. Tracy 1934-8-6 13563 Humboldt 1 mi w Lindsey Creek (n side of Mad River); n side Mad River, w of Lindsey Creek 30 Comment
  UC1224688  Sidalcea malachroides D. E. Anderson 1963-5-26 2502 Humboldt in alluvial gravel beds along s side Jacoby Creek; along s side of Jacoby Creek Comment
  UC302048  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1926-6-20 7659 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  POM282897  Sidalcea malviflora subsp. malviflora Lyman Benson 1929-6-18 1733 Humboldt North of Arcata Comment
  HSC35603  Sidalcea malviflora subsp. nana Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2009 Humboldt French Camp, Bald Hills. Comment
  JEPS109785  Sidalcea malviflora subsp. patula Dean W. Taylor 2005-6-10 19344 b Humboldt Branstetter Ridge, ca. 1 mile southeast along the ridge from Twin Peaks 701 Comment
  UC176988  Sidalcea malviflora subsp. patula Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3595 Humboldt near Hydesville; Northern Coast Region, near Hydesville 30 Comment
  HSC104351  Sidalcea malviflora subsp. patula James Regan, Humboldt Redwood Co., LLC 2005-7-7 13 Humboldt Kneeland 854 Comment
  UC1197970  Sidalcea oregana subsp. spicata Joseph P. Tracy 1935-7-27 14275 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  UC162882  Silene bridgesii Harley P. Chandler June, 1901 1505 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  CAS-BOT-BC384547  Silene bridgesii Henry M. Pollard 1948-7-17 s.n. Humboldt Woods near Orleans Comment
  CDA38659  Silene californica B. Villegas/D. Juliano 2010-6-17 PDR# 1535021 -C Humboldt Alderpoint: Garberville - Alderpoint Rd. 0 Comment
  UC1198362  Silene californica Joseph P. Tracy 1898-7-13 267 Humboldt near Hydesville; Northern Coast Region, near Hydesville 60 Comment
  HSC74195  Silene campanulata subsp. glandulosa M. A. Baker 1980-7-23 3137 Humboldt Near Orleans Mtn. 1859 Comment
  CAS-BOT-BC387076  Silene gallica Doris K. Kildale; L. B. Kildale 1930-5-27 9527 Humboldt Gunther's Island in Humboldt Bay Comment
  CAS-BOT-BC181223  Silene hookeri subsp. bolanderi Volney Rattan 1883-1-1 s.n. Humboldt Mad River Comment
  BLMAR685  Silene laciniata subsp. californica Jennifer Wheeler 2013-6-25 685 Humboldt King range, Strawberry Rock 76 Comment
  HSC41324  Silene laciniata subsp. californica Brad Klipfel 1974-8-2 517 Humboldt Horse Mtn. Comment
  UC668193  Silybum marianum Joseph P. Tracy 1938-7-6 16026 Humboldt Big Lagoon 12 Comment
  CDA39474  Sisyrinchium bellum T. C. Fuller 1958-6-17 1715 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC48534  Sisyrinchium californicum Mark Flippo 1978-4-18 25 Humboldt McKinleyville, Bella Vista Hill Comment
  JEPS62110  Smilacina racemosa Milo S. Baker 1923-7-31 150 Humboldt Lawrence Creek Comment
  UC666975  Smilacina racemosa Joseph P. Tracy 1938-7-7 16038 Humboldt Grouse Mountain 1524 Comment
  HSC67842  Solanum americanum J. P. Smith 1971-10-9 5002 Humboldt Mad River above the Fish Hatchery. Comment
  RSA46495  Solanum americanum Doris K. Kildale 1925-9-26 1362 Humboldt Mouth of Mad River. Comment
  HSC89586  Solanum aviculare M. Roantree 1985-5-24 57 Humboldt W side of Trinidad Head, along trail Comment
  NY821311  Solanum laciniatum H. H. Smith 1911-6-17 3857 Humboldt Samoa Comment
  JEPS12110  Solanum physalifolium var. nitidibaccatum Joseph P. Tracy 1940-9-28 16738 Humboldt Eureka 30 Comment
  POM280569  Solanum umbelliferum Lyman D. Benson 1928-7-12 463 Humboldt Weott Ranger Station. 61 Comment
  UC902078  Solanum umbelliferum Joseph P. Tracy 1949-5-8 18293 Humboldt 5 mi e (of town) Carlotta (by old Strong's District School House) 60 Comment
  UC1199318  Solidago elongata Joseph P. Tracy 1921-8-21 5943 Humboldt mouth South Fork of Trinity (near Willow Creek, Trinity River Valley); Northern Coast Ranges, Trinity River Valley, mouth South For 152 Comment
  UC165026  Solidago elongata J. P. Tracy 1900-8-26 923 Humboldt immediate vicinity Eureka 0 Comment
  HSC100448  Solidago elongata Carl C. Marshall Sep 1887 441 Humboldt Near tunnel, Table Bluff. Comment
  CAS-BOT-BC365669  Solidago spathulata Doris K. Kildale 1928-8-10 6263 Humboldt Samoa Peninsula - Humboldt Bay Comment
  HSC67441  Solidago spathulata J. P. Smith 1971-10-6 4948 Humboldt End of Murray Rd. in McKinleyville. Comment
  RSA24389  Solidago spathulata C. B. Wolf 1941-2-22 9916 Humboldt Little River Beach State Park (north of Arcata). 8 Comment
  UC1199285  Soliva sessilis Joseph P. Tracy 1919-5-31 5166 1/2 Humboldt Valley of Trinity River near mouth Willow Creek; Northern Coast Ranges, Valley of Trinity River, mouth Willow 152 Comment
  HSC6217  Sonchus asper J. W. Johnson 1962-6-12 1410 Humboldt Arcata; between the foredunes, at foredune 39, Samoa Comment
  CAS-BOT-BC374596  Sonchus oleraceus F. J. Kirby 1958-7-1 s.n. Humboldt West of Bridgeville 152 Comment
  HSC23681  Sorbus scopulina J. O. Sawyer 1970-6-26 2302 Humboldt 1860 Comment
  RSA355701  Sparganium angustifolium subsp. emersum Walter Wisura, Dave Kelly 1986-7-30 4135 Humboldt North of Crannel on Louisiana Pacific Lumber Co. property; in pond ca. 1 mile beyond the gate. Comment
  CDA776  Sparganium emersum subsp. emersum M. K. Bellue 1932-9-28 Humboldt Arcata. Swale, edge of marsh. 0 Comment
  HSC38406  Spartina densiflora J. P. Smith 1976-7-3 8938 Humboldt Manila, Samoa Peninsula Comment
  CDA19921  Spartium junceum R. Spadoni 2002-6-26 PDR P 070828 Humboldt Northern California; Vicinity of Garberville. 0 Comment
  HSC79184  Spergula arvensis L. P. Janeway 1984-2-6 711 Humboldt .25 mi. up Hidden Creek Rd. from LK Wood Blvd. 46 Comment
  HSC90751  Spergularia canadensis var. occidentalis Jean Hanson 1980-6-22 96 Humboldt Indian (Gunther) Island, Humboldt Bay, city of Eureka: W side of dike on NW side of island. Comment
  HSC90259  Spergularia macrotheca Jean Hanson 1980-6-22 86 Humboldt Indian (Gunther) Island. In Humboldt Bay, city of Eureka. W end of Island. Comment
  CAS-BOT-BC149616  Spiraea douglasii H. E. McMinn 1922-7-1 289 Humboldt North of Scotia Comment
  UC1196396  Spiranthes romanzoffiana Joseph P. Tracy 1911-8-27 3537 Humboldt Eureka Northern Coast Region 0 Comment
  RSA245280  Spiranthes romanzoffiana J. D. Ackerman 1973-8-29 119 Humboldt Big Lagoon Beach Co. Park; 8 miles N of Trinidad. Comment
  UC666993  Spiranthes romanzoffiana Joseph P. Tracy 1934-7-21 13477 Humboldt near Samoa (edges of dunes); Humboldt Bay 6 Comment
  BLMAR739  Stachys ajugoides Jennifer Wheeler 2015-5-12 739 Humboldt King range, Telegraph ridge btwn Oat and Spanish 670 Comment
  UC1239728  Stachys ajugoides var. rigida Joseph P. Tracy 1913-6-20 4217 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1222860  Stachys ajugoides var. rigida Joseph P. Tracy 1950-6-8 18742 Humboldt near Petrolia (at crossing of river, hills between town and Ocean); Bear River 30 Comment
  UC1222862  Stachys ajugoides var. rigida Joseph P. Tracy 1950-6-8 18761 Humboldt near Petrolia (w slope of hill, leading from the coast toward town, hills between town and Ocean); Domingo Hill Comment
  RSA33417  Stachys emersonii Carl B. Wolf 1937-8-13 9246 Humboldt North Coast Range, 11 mi. E. of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  HSC14421  Stachys rigida J. F. Knezevich 1968-5-14 436 Humboldt 13 mi. S of Ferndale at Cape Mendocino 0 Comment
  HSC54885  Stachys rigida var. rigida G. L. Clifton, Griswold 1979-7-25 10894 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC668079  Stellaria borealis subsp. sitchana Joseph P. Tracy 1937-7-17 15443 Humboldt near Field's Landing (Still Ranch) 6 Comment
  RSA67572  Stellaria crispa P. A. Munz 1951-7-15 16550 Humboldt 5 miles N of Willow Creek 305 Comment
  UC161059  Stellaria crispa Joseph P. Tracy 1901-4-26 1048 Humboldt Humboldt Hill Northern Coast Region, Humboldt Bay Region (Humboldt Bay Region) 0 Comment
  HSC39800  Stellaria media Peter Sorensen 1976-6-11 Humboldt Woodley Island Comment
  HSC59679  Stellaria media George Kirn 1977-10-14 Humboldt Eureka, 6th and L St. 12 Comment
  HSC70500  Stenanthium occidentale Gail Newton 1980-7-20 1618 Humboldt Near Bell Swamps 1426 Comment
  JEPS6211  Stenanthium occidentale Joseph P. Tracy 1937-7-25 15558 Humboldt n.e. Hawkins Bar (Happy Camp Mt., Trinity Summit Range); Trinity Summit Range, Happy Camp Mt. 1280 Comment
  POM174066  Stephanomeria virgata Joseph P. Tracy 1918-9-29 5104 Humboldt S Fork Eel River, 4 miles above the mouth. 61 Comment
  CAS-BOT-BC87615  Streptanthus tortuosus Richard Spellenberg 1965-6-14 1130 Humboldt South of airport, about 5 miles east of Kneeland. Comment
  HSC73750  Streptanthus tortuosus M. A. Baker 1980-7-15 2942 Humboldt Near Whiting Ridge. 1341 Comment
  HSC74305  Streptanthus tortuosus M. A. Baker 1980-7-24 3205 Humboldt Near Orleans Mtn. 1625 Comment
  UC1281747  Streptanthus tortuosus Richard Spellenberg 1965-6-14 1130 Humboldt rocky outcrops in grassland s airport (about 5 mi e of Kneeland) Comment
  UC902000  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1947-7-9 17845 Humboldt Horse Mountain 1432 Comment
  HSC58202  Streptanthus tortuosus var. tortuosus Walter Overton 1979-8-1 12306 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1402 Comment
  HSC82543  Streptanthus tortuosus var. tortuosus Thomas W. Nelson 1979-7-11 5002 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC96248  Streptanthus tortuosus var. tortuosus Laurel Goldsmith, Wanda Naylor 2005-6-8 5 Humboldt 1.7 mi. S of Hwy. 299 on Titlow Hill Rd. 980 Comment
  HSC57036  Streptopus amplexifolius Overton, Butler 1979-7-24 9671 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC1103500  Streptopus amplexifolius var. americanus Joseph P. Tracy 1930-7-17 8998 Humboldt McKay Camp; South Fork Mountain 1676 Comment
  RSA245237  Symphoricarpos albus var. laevigatus Tim Baroni 1971-7-6 112 Humboldt Appox. 2 miles S of Ferndale on Mattole road. Comment
  JEPS13644  Symphoricarpos mollis Joseph P. Tracy 1930-7-16 8956 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  JEPS13646  Symphoricarpos mollis Lincoln Constance 1934-6-3 808 Humboldt road from High Rock to Horse Prairie (High Rock (on Redwood Hwy, 1 mi n of Dyerville)); South Fork Eel River, Bull Creek Region Comment
  UCD137442  Symphoricarpos mollis Joseph P. Tracy 1948-8-15 18144 Humboldt Trinity Summit. On ridge 2 miles east of Grove's Prairie. 1524 Comment
  HSC99571  Symphyotrichum spathulatum var. spathulatum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 236 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  HSC5095  Symphyotrichum subspicatum D. E. Anderson 1961-9-9 1790 Humboldt Along S end of Hwy. 101 causeway over Big Lagoon. Comment
  UC175193  Symphyotrichum subspicatum Joseph P. Tracy 1913-9-9 4396 Humboldt Big Lagoon 30 Comment
  RSA46713  Synthyris reniformis Doris K. Kildale 1926-3-20 1538 Humboldt Big Lagoon. Comment
  JEPS9928  Synthyris reniformis Joseph P. Tracy 1926-2-28 7380 Humboldt East Fork of Willow Creek (Willow Creek Canyon); Northern Coast Ranges 457 Comment
  BLMAR752  Tanacetum bipinnatum Kate McGrath 2015-6-28 752 Humboldt Samoa Peninsula, Throughout Samoa Dunes Rec Area and OHV area 1 Comment
  CAS-BOT-BC376725  Tanacetum bipinnatum Doris K. Kildale 1926-6-29 2245 Humboldt Mouth of Mad River Comment
  UCD150391  Tanacetum bipinnatum Harry A. George; G. M., B. M. 1967-7-11 s.n. Humboldt Humboldt Bay, South Spit. Comment
  UCSB15911  Tanacetum bipinnatum Breedlove, Dennis 1962-6-8 Humboldt Near coast on U.S. Highway 101, 3 miles south of Orick Comment
  SD148217  Tanacetum camphoratum G. K. Helmkamp, E. A. Helmkamp 2001-7-8 7012 Humboldt Samoa Peninsula, 2.6 miles south of California 255 bridge across Humboldt Bay. 14 Comment
  UC127603  Tanacetum camphoratum J. Burtt Davy 1899-6-30 6183 Humboldt near Ferndale (North Coast Ranges); North Coast Ranges Comment
  UC166081  Tanacetum camphoratum J. P. Tracy 1909-7-18 3020 Humboldt opposite Eureka (ocean beach at Samoa); Samoa Comment
  RSA0049665  Taraxacum laevigatum Dean Wm. Taylor 2011-5-4 21112 Humboldt Alderpoint Road in the vicinity of the Snowline Fox Farm (Larabee Valley quadrangle placename), vicinity of the road crossing of Knack Creek 341 Comment
  HSC31449  Taraxacum officinale D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5567 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  UC1196938  Taraxia ovata Joseph P. Tracy 1939-4-18 16215 Humboldt w side of river Garberville 152 Comment
  HSC54546  Taxus brevifolia Overton, Butler 1979-7-23 9533 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  SEINET3876099 Image available Taxus brevifolia M. C. Hartman 1963-3-30 8 Humboldt Highway 299 1 mile E. of Berry Summit.; 0 Comment
  UC54777  Taxus brevifolia Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5819 Humboldt Tinity Summit North Coast Ranges, Trinity Summit Comment
  CAS-BOT-BC85212  Taxus brevifolia G. A. Coleman 1901-7-28 s.n. Humboldt Near Baise Creek Comment
  HSC32947  Tellima grandiflora Thomas W. Nelson, James Nelson 1973-5-28 960 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC56216  Tellima grandiflora G. L. Clifton, Griswold 1979-8-2 12229 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  BLMAR282  Tellima grandiflora Jennifer Anthony-Wheeler 1999-5-28 282 Humboldt King range, growing along prosper ridge of the strawberry rock grazing allotment 304 Comment
  RSA183511  Tellima grandiflora D. E. Anderson 1965-5-8 3629 Humboldt 0.6 miles west of bridge over North Fork of Mad River, along highway 299. Comment
  HSC15097  Thermopsis macrophylla D. E. Anderson 1965-5-15 3692 Humboldt About 7 mi. N of Hoopa on Bloody Camp Prairie Rd. Comment
  CAS-BOT-BC81320  Thuja plicata Ira L. Wiggins 1955-7-31 13594 Humboldt Hillside 9 mi. E of Arcata along Highway 299 316 Comment
  JEPS27183  Thuja plicata W. L. Jepson 1902-8-2 2137 Humboldt Wildcat Grade near Ferndale 457 Comment
Read comments
Sep 8 2007
  NY17207  Thuja plicata A. Kellogg 1868-1 933 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  RSA34287  Thuja plicata C. B. Wolf 1927-8-29 1192 Humboldt 7 miles south of Ferndale and Capetown, Bear River Ridge, Mt. Glen. Comment
  SEINET3866799  Thuja plicata Lewis S. Rose 1966-6-26 66039 Humboldt Us Highway 299. 10 mi east of Blue Lake.; 0 610 Comment
  UC1174840  Thuja plicata P. C. Everett and E. K. Balls 1959-10-25 23970 Humboldt 6.9 mi sw from Ferndale (on Old Coast Road to Capetown, on heavily wooded slopes, n coastal conifer forest) 563 Comment
  HSC45087  Thysanocarpus curvipes R. Sutherland 1978-4-23 28 .23478 Humboldt 640 Comment
  HSC20437  Tiarella trifoliata var. unifoliata D. E. Anderson 1961-9-30 1849 Humboldt Blue Lake Comment
  HSC38629  Tiarella trifoliata var. unifoliata D. E. Anderson, J. P. Smith 1971-6-18 - 1099 Humboldt In narrow canyon of the N Fork of Mad River, along Hwy. 299, E of Blue Lake Comment
  UC1409074  Tiarella trifoliata var. unifoliata Robert F. Thorne and P. Everett 1965-8-5 35140 Humboldt below summit Mt. Chamisal Mt. Chamisal; , below summit 533 Comment
  UC14487  Tiarella trifoliata var. unifoliata Chesnut and Drew 1888-7-8 Humboldt near Arcata; near Arcata Comment
  UC183590  Tiarella trifoliata var. unifoliata Joseph P. Tracy 1912-7-25 3813 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  SD64143  Tiarella trifoliata var. unifoliata Walter Bertsch 1953-7-30 219 Humboldt Hiwy.101 Duncan Grove 75 Comment
  UC615036  Tiarella trifoliata var. unifoliata Beryl O. Schreiber 1934-6-4 1129 Humboldt Redwood Highway Stephen's Grove (Stephen's Grove) Comment
  HSC44676  Tolmiea diplomenziesii Brad Klipfel 1973-7-15 214 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA41966  Tolmiea menziesii H. C. Cantelow 1935-6-13 1095 Humboldt East of Arcata. Road to Weaverville. Comment
  JEPS14165  Torilis nodosa Lincoln Constance 1934-5-27 706 Humboldt South Fork Eel River, S end of Dyerville Bridge 45 Comment
  UCD93214  Torreyochloa pallida var. pauciflora A. H. Murphy 1951-8-17 88 Humboldt South Fork Mtn., ca. 15 miles N.E. of Bridgeville-Trinity County line. Comment
  JEPS63933  Toxicodendron diversilobum W. L. Jepson 1902-7-10 2003 Humboldt S. Fork Trinity R., Martin's Ranch Comment
  UC165853  Tracyina rostrata Joseph P. Tracy 1903-5-23 1892 Humboldt Alder Point Northern Coast Ranges 243 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
  SEINET185707  Trautvetteria caroliniensis var. occidentalis Joseph P. Tracy 1937-7-2 15387 Humboldt Happy Camp Mountain; In Trinity Range, Northeast of Hawkins Bar. 1280 Comment
  BLMAR387  Triantha occidentalis Jennifer Anthony-Wheeler 2004-7-1 387 Humboldt Horse Mtn, mixed conifer in serp.seep Comment
  JEPS63108  Trichostema lanceolatum Milo S. Baker 1923-8-25 332 Humboldt highway near Garberville; North Coast Comment
  CHSC31274  Trientalis latifolia Mark Stopher 1980-5-20 70 Humboldt In dense forest along the Van Duzen River near Rte 36. Comment
  HSC97593  Trientalis latifolia Steven Lee 2004-4-26 27 Humboldt E several mi. from Arcata on Jacoby Creek Rd. Comment
  HSC89588  Trientalis latifolia M. Roantree 1985-5-24 56 Humboldt NW side of Trinidad Head, along trail Comment
  UC1223509  Trifolium barbigerum Joseph P. Tracy 1936-6-9 14883 Humboldt Bear River Ridge 609 Comment
  POM160892  Trifolium bifidum Joseph P. Tracy 1922-4-30 5992 Humboldt Trinity River Valley, near Willow Creek. 152 Comment
  POM214880  Trifolium cyathiferum Joseph P. Tracy 1932-6-14 10150 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC45172  Trifolium dichotomum R. Sutherland 1978-4-23 32 .23478 Humboldt Kinsey Ridge 640 Comment
  HSC70358  Trifolium dubium M. A. Baker 1980-6-7 1867 Humboldt Near Ammon Creek 732 Comment
  SD87601  Trifolium dubium F. W. Peirson 1923-7-11 3622 Humboldt Coast, 20 miles north of Eureka Comment
  UC16503  Trifolium dubium Joseph Burtt Davy and Walter C. Blasdale 1899-6-17 5602 Humboldt Arcata Comment
  UC495654  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-7-6 8835 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  JEPS79999  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-29 8821 Humboldt nw slope Buck Mtn (lower foothills); Northern Coast Ranges Comment
  HSC100533  Trifolium filipes Carl C. Marshall May 1886 411 Humboldt Dobbyn's Creek. Comment
  SEINET12147891  Trifolium fragiferum J. P. Tracy 1933-1 12986 Humboldt 1 mi W of Loleta Comment
  CDA27949  Trifolium fucatum T. C. Fuller 1958-6-17 1720 Humboldt Petrolia, Lower Mattole. 0 Comment
  UC1223459  Trifolium fucatum Joseph P. Tracy 1933-5-20 12221 Humboldt s point of cape (near ocean shore); Cape Mendocino Comment
  UC1152149  Trifolium hybridum Joseph P. Tracy 1938-6-15 15926 Humboldt 2 mi s town (Field's Landing, Salmon Creek Flats, s end of bay); Humboldt Bay 6 Comment
  HSC59064  Trifolium incarnatum Thomas Wood 1979-4-6 95 Humboldt On Hwy. side W of 2nd bridge overpass from Eureka, on Gunther Island Comment
  HSC100535  Trifolium involucratum Carl C. Marshall Jun 1885 117 Humboldt Near the bay anywhere. Comment
  HSC102636  Trifolium longipes subsp. elmeri M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1620 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC102067  Trifolium longipes subsp. hansenii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 969 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC99351  Trifolium longipes subsp. hansenii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 197 Humboldt Near North Trinity Mtn and Water Dog Lakes, Six Rivers National Forest. 1826 Comment
  HSC71451  Trifolium microcephalum J. P. Smith 1973-5-26 6870 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC1602107  Trifolium microcephalum Joseph P. Tracy 1922-4-30 6022 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC45137  Trifolium microcephalum R. Sutherland 1978-6-1 4 .1678 Humboldt 213 Comment
  HSC45138  Trifolium microcephalum R. Sutherland 1978-5-25 1 .25578 Humboldt Near the Mattole River 288 Comment
  UC1197541  Trifolium microdon J. P. Tracy 1910-5-22 3139 Humboldt Eureka vicinity 0 Comment
  HSC23732  Trifolium repens Tim Baroni 1971-7-6 117 Humboldt 8 mi. S of Ferndale on Mattole Rd. Comment
  HSC45167  Trifolium repens R. Sutherland 1978-5-16 8 .16578 Humboldt 157 Comment
  HSC89587  Trifolium repens M. Roantree 1985-5-24 62 Humboldt E side of Trinidad Head Comment
  UCD109390  Trifolium subterraneum R. Tofsrud 1949-7-1 s.n. Humboldt Hydesville. Comment
  UCD109495  Trifolium variegatum var. major W. Williams 1951-1 s.n. Humboldt location unknown. Comment
  UC1197513  Trifolium willdenovii Joseph P. Tracy 1927-5-15 8037 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1223310  Trifolium willdenovii Joseph P. Tracy 1933-6-24 12615 Humboldt hills at n end lagoon; Big Lagoon Comment
  UC1223312  Trifolium willdenovii Joseph P. Tracy 1937-5-31 15323 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1197039  Trifolium wormskioldii Joseph P. Tracy 1927-6-18 8174 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  SEINET12156845  Trifolium wormskioldii J. P. Tracy 1950-1 18714 Humboldt near the "Sand Cut", Wild Cat rd, 2 mi S of Ferndale Comment
  CAS-BOT-BC451802  Triglochin maritima Ira L. Wiggins 1932-6-18 5868 Humboldt At mouth of Little River Comment
  HSC100504  Triglochin maritima Carl C. Marshall Jul 1886 230 Humboldt Salt marshes, etc. Comment
  HSC65512  Trillium albidum M. A. Baker 1980-6-8 1909 Humboldt Near Buck Flat. 1554 Comment
  RSA46966  Trillium albidum E. N. Crosby 1935-3-10 66 Humboldt Blue Lake Comment
  HSC28003  Trillium albidum Maralyn O'Meara 1972-5-29 77 Humboldt 18.6 mi. up Bald hills Rd. from junction with Hwy. 101 near Orick 915 Comment
  CAS-BOT-BC133395  Trillium ovatum Doris K. Kildale 1926-3-25 1630 Humboldt Foot of Liscom Hill near Essex 30 Comment
  HSC22042  Trillium ovatum H. S. Logsdon 1964-4-11 15 Humboldt 4 mi. NE of Orick at Boye's Prairie Comment
  HSC34636  Trillium ovatum J. M. Sauser 1975-4-9 1 Humboldt Jacoby Creek Rd. 4 mi. E of junction with Old Arcata Rd. Comment
  HSC45264  Trillium ovatum M. Alcasas 1978-4-7 1 Humboldt Freshwater Rd. 0.5 mi. N of Kneeland Post Office 732 Comment
  HSC59657  Trillium ovatum Marla J. Carollo 1979-4-10 3 Humboldt Side of the logging trail behind dorms of HSU campus Comment
  HSC69786  Trillium ovatum R. Kalal 1979-5-5 37 Humboldt Fickle Hill Rd. 1.5 mi. E of 11th St. 183 Comment
  SEINET12050374  Trillium ovatum F. H. Utech 1988-1 88 -276 Humboldt 14 mi W of Bridgeville enroute to Carlotta on CA 36, Van Duzen County Park, Pamplin Grove 50 Comment
  HSC49797  Trillium ovatum subsp. ovatum R. York 1979-4-9 215 Humboldt Behind HSU campus Comment
  CAS-BOT-BC521312  Trillium rivale Joseph P. Tracy 1911-7-7 3413 Humboldt Brannan Mountain; Viz Ridge North of Willow Creek, between Willow and Campbell Creeks, near the summit, in pine forest; Northern Coast Ranges 1219 Comment
  CAS-BOT-BC521314  Trillium rivale Doris K. Kildale 1930-6-1 9739 Humboldt Klamath River at Bluff Creek 152 Comment
  JEPS11786  Triodanis biflora Lincoln Constance 1934-6-4 818 Humboldt Look Prairie Bull Creek Region (and Bull Cr. road to Dyerville, South Fork Eel River); South Fork Eel River, , Look Prairie Comment
  JEPS10422  Triphysaria eriantha subsp. rosea Joseph P. Tracy 1941-4-3 Humboldt Samoa , Samoa (Humboldt Bay) Comment
  HSC23103  Triphysaria pusilla D. E. Anderson 1965-5-6 3609 Humboldt Along Hwy. 299 Comment
  HSC70581  Triphysaria pusilla Sue Sweet 1981-4-30 549 Humboldt Lanphere-Christensen Dunes Preserve, along trail N of weather station Comment
  HSC38336  Triphysaria versicolor subsp. faucibarbata Peter Sorensen 1976-7-11 Humboldt King Salmon Comment
  JEPS13344  Triphysaria versicolor subsp. faucibarbata H. E. and S. T. Parks May, 1930 750 Humboldt near Bridgeville Comment
  UCD123426  Triphysaria versicolor subsp. versicolor Linda M. Barker 1976-4-13 1424 Humboldt 3 miles west of Arcata. Comment
  RSA10081  Trisetum canescens Joseph P. Tracy 1926-6-6 7557 Humboldt Northern Coast Ranges, Hoopa Mountain, near summit on road west from Hoopa to Bair's. 1067 Comment
  UC552798  Trisetum canescens Joseph P. Tracy 1935-7-30 14359 Humboldt Salmon Summit 1767 Comment
  SEINET5424014  Trisetum canescens J. B. Davy, W. C. Blasdale 5036 Humboldt Walkers Valley, hwy 25 Comment
  HSC91881  Trisetum cernuum E. Mackey 1986-10-7 Humboldt Partick's Point State Park. Comment
  SEINET244120 Image available Trisetum cernuum Joseph P. Tracy 1918-4-21 4881 Humboldt Openings in moist woods 'Newell's Camp' on old Kneeland Prairie Road. 305 Comment
  UC1541533  Trisetum cernuum Harold E. Parks 1934-5-16 4935 Humboldt Carlotta; near station 15 Comment
  UC1197721  Triteleia laxa J. P. Tracy 1906-6-24 2504 Humboldt s slope of hill near Fields Landing; Humboldt Hill 30 Comment
  CAS-BOT-BC85896  Tsuga heterophylla G. A. Coleman 1901-7-23 s.n. Humboldt Near Acorn Comment
  NY64312  Tsuga heterophylla J. P. Tracy 1940-8-25 16704 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UC672889  Tsuga heterophylla Joseph P. Tracy 1940-8-25 16704 Humboldt Bald Mountain Bald Mountain (in forest mainly of Douglas Fir, in cold shaded gulches) 914 Comment
  UCR28003  Tsuga heterophylla A. C. Sanders 1981-8-6 2303 Humboldt Patrick's Point State Park, north of Eureka 30 Comment
  SEINET11092948  Turritis glabra Unknown 1906-5-13 2456 Humboldt Plants of Northern Coast Region of California SAND DUNES OF OCEAN BEACH AT HUMBOLDT BAY Comment
  HSC49395  Umbellularia californica R. York 1979-4-16 235 Humboldt Corner of 12th and D in Arcata Comment
  UC915720  Umbellularia californica W. L. Jepson 1903-6-13 36 Humboldt Briceland Comment
  HSC99668  Urtica dioica subsp. gracilis Steven Lee 2004-4-6 10 Humboldt Arcata Community Forest, along Jolly Giant Creek. Comment
  HSC98063  Vaccinium membranaceum Cara Witte 2007-7-12 524 Humboldt Forest Service Road 5N10C. Approximately 1 mile south for intersection with Ammon Ridge Road. 1252 Comment
  UC562245  Vaccinium membranaceum Joseph P. Tracy 1935-7-22 14121 Humboldt Forks of Tish-Tang-A-Tang Creek Trinity Summit 1371 Comment
  CAS-BOT-BC199315  Vaccinium ovatum A. A. Heller 1937-6-12 15917 Humboldt Bishop Pine Lodge, 3 miles north of Trinidad Comment
  CAS-BOT-BC199416  Vaccinium parvifolium C. Hart Merriam 1921-7-7 s.n. Humboldt Van Duzen River Bridge Comment
  HSC7923  Vaccinium parvifolium Francis Winter 1960-4-24 Humboldt 1 mi. E of Pine Ridge Summit 854 Comment
  JEPS66688  Vaccinium parvifolium Joseph P. Tracy 1927-6-12 8133 Humboldt Horse Mountain 1432 Comment
  UC32645  Vaccinium parvifolium J. Burtt Davy 1899-6-18 5608 Humboldt Bald Mt., near Korbel; North Coast Ranges Comment
  UC314631  Vaccinium uliginosum subsp. occidentale Joseph P. Tracy 1924-7-13 6725 Humboldt Big Lagoon Northern Coast Region 6 Comment
  JEPS9372  Valeriana californica Joseph P. Tracy 1935-7-30 14381 Humboldt Salmon Summit 2103 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
  CAS-BOT-BC76054  Vancouveria hexandra L. R. Abrams 1916-7-11 5983 Humboldt Between Blocksberg and Bridgeville. Comment
  HSC53866  Vancouveria hexandra Griswold, Butler 1979-7-10 6342 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC3384  Vancouveria planipetala William J. Ferlatte, B. D. Rogers 1966-6-8 2089 Humboldt 2 mi. W of Forest Glen, Granite Canyon. Comment
  UCD95107  Vancouveria planipetala D. Sanchez-Mata 1996-6-28 s.n. Humboldt Willow Creek. 650 Comment
  UCR52470  Vancouveria planipetala J. O. Sawyer, R. J. Cole 1977-7-3 3003 Humboldt Environs of Mud Sprng. Big Hill Road (F.S. 8N01) 1246 Comment
  UC1173645  Veratrum insolitum Joseph P. Tracy 1929-7-4 8636 Humboldt French Camp Ridge 1066 Comment
  UC168982  Verbascum blattaria Harley P. Chandler 1901-6-10 1422 Humboldt Klamath River Nature's Rest; North Coast Ranges, , Nature's Rest 304 Comment
  CDA30233  Verbena lasiostachys M. K. Beyers, I. Shepardson 2009-9-13 240 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
  HSC75560  Verbena lasiostachys J. O. Sawyer, R. J. Cole 1977-7-3 3013 Humboldt Environs of Mud Spring, Big Hill Rd. (F.S. 8N01) 1524 Comment
  HSC64192  Veronica americana J. O. Sawyer, M. A. Ericksen 1979-6-23 3376 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC70356  Veronica americana M. A. Baker 1980-6-7 1865 Humboldt Near Ammon Creek 732 Comment
  RSA246672  Veronica americana Robert F. Thorne, Percy C. Everett 1965-8-9 35319 Humboldt Clam Beach County Park: along highway. 3 Comment
  UC1198066  Veronica arvensis J. P. Tracy 1910-5-1 3131 Humboldt immediate vicinity of Eureka 0 Comment
  UCD20170  Veronica serpyllifolia J. M. Tucker 1948-9-5 1866 Humboldt Near Hwy 101, 3.5 miles north of Myers. Comment
  JEPS5706  Veronica serpyllifolia subsp. humifusa Rimo Bacigalupi with L. Constance, Joe Tracy, Reid Moran, R. Rodriguez and Sherwin Carlquist 1951-6-14 3412 Humboldt at Snow Camp below Snow Camp Mountain (between Mad River and Redwood Creek (Bald Mountain Ridge)); Snow Camp 1432 Comment
  UC147903  Veronica serpyllifolia subsp. humifusa J. P. Tracy 1900-5-22 797 Humboldt immediate vicinity of Eureka 0 Comment
  HSC96800  Viburnum tinus Gordon Leppig 2005-3-23 2002 Humboldt McKinleyville, on E side of Azalea Rd. 55 Comment
  HSC39004  Vicia americana var. americana Thomas W. Nelson, Jane P. Nelson 1976-5-31 2650 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  HSC31738  Vicia americana var. americana Donald Spalinger 1974-5-12 56 Humboldt Williams Ridge Rd., 1 mi. N from junction with Bald Hills Rd. 732 Comment
  RSA273329  Vicia sativa Robert M. Specht 1975-5-31 8145 Humboldt Along Samoa Peninsula adjacent to Redwood Workshop Area. Comment
  UCD108854  Vicia sativa subsp. nigra Linda M. Barker 1976-5-13 1481 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC15280  Vicia sativa subsp. sativa A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek Jct., 200 yards W of Lindsey Creek Comment
  CAS-BOT-BC263940  Viola adunca C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  CAS-BOT-BC263947  Viola adunca L. B. Kildale 1930-5-11 9543 Humboldt Bald Hills near [Tomlinson's?] 792 Comment
  HSC21756  Viola adunca D. E. Anderson 1961-10-1 1856 Humboldt E side of Freshwater Lagoon Comment
  HSC21757  Viola adunca N. J. Cole, D. E. Anderson 1965-4-13 16 Humboldt 1.5 mi. SE of Maple Creek Rd. jct. with Bald Hills Rd., SE of Korbel Comment
  HSC21758  Viola adunca F. B. Plett 1963-3-9 5 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  RSA24335  Viola adunca Carl B. Wolf 1941-2-25 9957 Humboldt Between Freshwater Lagoon and Stone Lagoon, 1/8 mile back from Ocean. 30 Comment
  RSA77779  Viola adunca F. W. Peirson 1926-7-12 7028 Humboldt West slope of Coast Range back of Orick. Comment
  UC1198463  Viola adunca Joseph P. Tracy 1926-3-14 7384 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  HSC90169  Viola cuneata Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-27 57 Humboldt Horse Mtn. Summit; Rd. 6N36, 1 mi. N of Titlow Hill Rd. 1494 Comment
  HSC98620  Viola cuneata Cara Witte 2008-5-26 657 Humboldt National Forest 1. 1 mile north of intersection with Forest Service Road 5N10. 1457 Comment
  RSA168949  Viola cuneata Joseph P. Tracy 1950-7-1 18946 Humboldt Summit near Clear Lake. Grouse Mountain. 1524 Comment
  HSC21802  Viola glabella D. E. Anderson 1964-2-23 2902 Humboldt 6 mi. E of Carlotta along Hwy. 36; along Van Duzen River Comment
  HSC45496  Viola glabella Maralyn O'Meara 1972-6-8 97 Humboldt Along Bald Hills Rd. 18 mi. E of junction with Hwy. 101 Comment
  HSC33151  Viola hallii Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1245 Humboldt Horse Mtn. area, W of microwave tower 1220 Comment
  HSC82031  Viola hallii Thomas W. Nelson, James Nelson 1980-6-10 5399 Humboldt Along Swayback Ridge 4-wheel drive road, 1.25 mi. S of junction with Forest Service road. 1494 Comment
  RSA77758  Viola hallii Joseph P. Tracy 1927-6-12 8125 Humboldt Horse Mountain. 1524 Comment
  CHSC24856  Viola ocellata A. D. Launer 1976-4-9 1 Humboldt N roadbank of Church St., ca. 100 yds e of Blocksburg. 472 Comment
  SEINET200806 Image available Viola ocellata J. P. Tracy 1922-4-30 6034 Humboldt Tinity River Valley near Willow Creek 500 Comment
  JEPS50263  Viola palustris Joseph P. Tracy 1923-5-31 6242 Humboldt Northern Coast Ranges, Eurkea Eurkea; Northern Coast Ranges, Eurkea 0 Comment
  UC1761429  Viola palustris Milo S. Baker 1923-8-23 445 b Humboldt 3 1/2 mi E of Eureka Comment
  UC1198427  Viola sempervirens Joseph P. Tracy 1921-3-20 5424 Humboldt Blue Slide on Van Duzen River; Northern Coast Region, , Blue Slide 91 Comment
  HSC70239  Viola sheltonii M. A. Baker 1980-6-8 1903 Humboldt Near Buck Flat. 1554 Comment
  UC1197980  Vitis californica Joseph P. Tracy 1933-7-3 12630 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UCD16884  Vitis californica H. Olmo 1934-9-30 s.n. Humboldt California. Humboldt County: on highway near Blue Lake. Comment
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Jun 14 2012
  CAS-BOT-BC198760  Vulpia bromoides Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon near Orleans Comment
  HSC104101  Vulpia bromoides Kyle Brown 2015-4-25 50 Humboldt Arcata, trail along the Mad River 8 Comment
  HSC40949  Vulpia bromoides Linda M. Barker 1976-6-1 1543 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC79420  Vulpia bromoides Kenneth Clark 1980-4-18 584 Humboldt On western bluffs above Dead Man's Gulch. 137 Comment
  RSA123466  Vulpia bromoides H. S. Yates 1936-6-16 5663 Humboldt 1 miles southwest of Samoa. 6 Comment
  UC212888  Vulpia bromoides Joseph P. Tracy 1919-4-27 5132 Humboldt Humboldt Bay Northern Coast Region (Ocean Beach) Comment
  UC212886  Vulpia microstachys var. microstachys Joseph P. Tracy 1919-5-31 5161 Humboldt near Willow Creek (hillslopes at the w side of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  UC1145194  Vulpia microstachys var. pauciflora Joseph P. Tracy 1936-6-17 14961 Humboldt nw slope Buck Mountain (Burr Valley); , Burr Valley 1066 Comment
  UC1145196  Vulpia microstachys var. pauciflora Joseph P. Tracy 1939-4-29 16247 Humboldt 8 mi below Orleans (near Slate Creek, Klamath River); Klamath River 121 Comment
  UC212887  Vulpia microstachys var. pauciflora Joseph P. Tracy 1919-5-31 5161 1/2 Humboldt near Willow Creek (hillslopes at w side of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  HSC45027  Vulpia myuros R. Sutherland 1978-5-13 4 .13578 Humboldt Mattole River. 282 Comment
  HSC9925  Vulpia myuros D. C. Juve 1964-5-14 Humboldt Camp Tish-Tang, Campbell Cr. Ranger Station, Hwy. 96. Comment
  UC53369  Vulpia myuros var. hirsuta M. A. H. 1896-6-2 Humboldt Eureka Comment
  HSC70379  Whipplea modesta M. A. Baker 1980-6-7 1796 Humboldt Near Brush Mtn. 287 Comment
  SDSU19191  Whipplea modesta Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3013 Humboldt Six Rivers National Forest. From Hwy 299, take Titlow Hill Road (at Berry Summit) ca. 1.75 miles south. Roadcut, north side of road. Ca. 1.4 aerial miles west-northwest of Horse Mtn. Radio Tower. 978 Comment
  HSC35285  Woodwardia fimbriata Lon Hall 1975-3-27 296 Humboldt Near Shelter Cove at edge of Bear Creek 366 Comment
  HSC71670  Wyethia angustifolia M. A. Baker 1980-6-26 2382 Humboldt Near Sims Creek 610 Comment
  JEPS32070  Wyethia angustifolia Joseph P. Tracy 1930-7-27 8898 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  UC1223305  Wyethia angustifolia Joseph P. Tracy 1950-6-8 18739 Humboldt s slope near Capetown; Bear River Ridge 30 Comment
  UC582641  Wyethia angustifolia Joseph P. Tracy 1937-7-24 15524 Humboldt prairie in Devil's Hole; Trinity Summit 1676 Comment
  JEPS13755  Wyethia longicaulis Frank W. Gould 1939-5-29 841 Humboldt Horse Mountain 914 Comment
  UC1199273  Wyethia longicaulis Joseph P. Tracy 1933-7-25 12897 Humboldt near Clear Lake; North Coast Ranges, Grouse Mountain 1524 Comment
  UC582623  Xanthium spinosum Joseph P. Tracy 1929-11-11 8686 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC154243  Yabea microcarpa Joseph P. Tracy 1908-6-9 2647 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC37997  Zeltnera muehlenbergii Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  HSC12700  Zeltnera muehlenbergii Jana Kattenhorn 1970-10-31 159 Humboldt Scotia Bluffs, N bank of Eel River Comment
  HSC8420  Zeltnera muehlenbergii Yarick 1960-8-5 Humboldt M&M, 7 mi. Krueger Creek 152 Comment
  HSC15750  Zigadenus micranthus Doris K. Kildale 1936-3-23 1606 Humboldt Alton-Hydeville Rd. 30 Comment
  UC302170  Zigadenus micranthus var. micranthus Joseph P. Tracy 1925-5-30 7041 Humboldt at summit leading to Laribee Valley; Northern Coast Ranges, McClellan Mountain 822 Comment
  HSC90651  Zostera marina L. Watson, J. Meninga Sep 1991 42 Humboldt Cooperative Management Area, Mad River Slough and dunes Comment



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