Search Results — 2000 specimen records retrieved (1320 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/consortium/).
 Records are made available under the CCH Data Use Terms.

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC73468  Abies X shastensis Doris K. Kildale 1925-8-17 1200 Humboldt Trinity Summit 1889 Comment
  RSA54126  Abies concolor Henry M. Pollard 1944-09 s.n. Humboldt Near Orleans. Comment
Read comments
Oct 1 2019
  UC502913  Abies concolor Joseph P. Tracy 1927-6-12 8144 Humboldt Horse Mountain 1524 Comment
  POM89804  Abies grandis Joseph P. Tracy 1919-4-6 5725 Humboldt Around Humboldt Bay, Humboldt Hill. 152 Comment
  HSC73024  Abies procera Gail Newton 1980-8-10 1987 Humboldt Near Blake Mtn. 1798 Comment
  BLMAR72  Abronia latifolia Jennifer Anthony-Wheeler 1994-5-18 72 Humboldt Samoa/manilla dunes, growing throughout dunes 6 Comment
  CAS-BOT-BC383850  Abronia latifolia Ira L. Wiggins 1930-7-7 4672 Humboldt Near Samoa Comment
  HSC16136  Abronia latifolia S. J. Hawks 1965-5-13 55 Humboldt 1 mi. W of McKinleyville, past the end of Murray Rd. Comment
  SD41412  Abronia latifolia Edith A. Purer 1932-7-27 4154 Humboldt Near Samoa Comment
  UCD170784  Abronia latifolia Gordon Leppig; Sylvia Leppig and Kai Neander 1998-5-6 746 Humboldt Dry Lagoon State Park, between ocean and Dry Lagoon. 2 Comment
  RSA0025094  Abronia latifolia Robert F. Thorne, P. C. Everett 1965-8-5 35170 Humboldt Samoa Dunes. 3 Comment
  CAS-BOT-BC331594  Acer macrophyllum C. B. Wolf; Johnson 1934-10-11 6756 Humboldt Redwood Highway, Eel River, 6.4 mi N of Humboldt Redwood Park Comment
  SBBG4087  Acer macrophyllum M. J. Cody 1938-7-14 Humboldt near Trinidad 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
  UCD170788  Acer macrophyllum Gordon Leppig 1998-5-7 750 Humboldt Quarry Rd. off Jacoby Creek. At Jacoby Creek Bridge. 97 Comment
  SEINET10905087  Achillea Mary Susan Taylor 1982-10-24 Taylor 5173 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  HSC37962  Achillea millefolium Peter Sorensen 1976-6-12 Humboldt Woodley Island Comment
  HSC68195  Achillea millefolium J. P. Smith 1971-10-6 4976 Humboldt End of Murray Rd. in McKinleyville. Comment
  CAS-BOT-BC28578  Achillea millefolium J. Clausen 1949-6-23 2159 Humboldt Benbow, 2 miles S of Garberville. Comment
  CAS-BOT-BC28582  Achillea millefolium J. Clausen 1939-6-23 1728 Humboldt On the Bull Creek Road near intersection with Redwood Highway at Dyerville Comment
  UC1222922  Achillea millefolium Joseph P. Tracy 1950-5-30 18712 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  UC1126254  Achlys californica A. E. Wieslander 1928-6-14 23 Humboldt Cedar Camp Klamath Forest, Hoopa Quad., Cedar Camp Comment
  CAS-BOT-BC400022  Achlys triphylla Mrs. H. E. Wilder 1933-5-20 s.n. Humboldt Carlotta Comment
  UCD55568  Achnatherum lemmonii W. Robert Powell 1958-7-10 s.n. Humboldt 6 miles northeast of Lord Ellis Summit. 1158 Comment
  HSC32835  Acmispon denticulatus Thomas W. Nelson, James Nelson 1973-5-28 949 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC71443  Acmispon micranthus J. P. Smith 1971-10-9 5047 Humboldt Mad River above the Fish Hatchery. Comment
  HSC33760  Acmispon micranthus A. Montalvo 1975-5-24 276 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  CAS-BOT-BC391412  Aconitum columbianum subsp. columbianum Carl B. Wolf 1937-8-13 9249 Humboldt North Coast Range, 11 mi. E. of Hoopa Valley on New Road towards Trinity Summit 1524 Comment
  HSC56125  Actaea rubra G. L. Clifton, Griswold 1979-8-1 11914 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC100421  Adenocaulon bicolor Carl C. Marshall Jul 1886 351 Humboldt Xavier's Place, Bald Hills. Comment
  HSC37414  Adiantum aleuticum Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 508 Humboldt Along Lost Man Creek. 38 Comment
  UC418981  Adiantum aleuticum H. E. and S. T. Parks May, 1930 749 Humboldt Van Duzen River Comment
  UC503063  Adiantum jordanii Joseph P. Tracy 1932-4-24 9812 Humboldt between Miranda and Redway (S Fork Eel River); North Coast Ranges 91 Comment
  UC1222302  Aesculus californica Joseph P. Tracy 1950-6-18 18847 Humboldt Petrolia Comment
  UC154005  Agastache urticifolia Joseph P. Tracy 1908-6 2802 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  RSA46781  Ageratina occidentalis Doris Kildale Gillespie 1937-8-12 15253 Humboldt South Fork Mountain. Comment
  UC194431  Ageratina occidentalis P. E. Goddard Jun 1 1906-Jul 1 1906 638 Humboldt North Fork Eel River Comment
  UC582757  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1930-7-23 9134 Humboldt s of summit Horse Mt. 1432 Comment
  HSC99060  Agoseris heterophylla Cara Witte 2007-5-23 89 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  UC582748  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1930-6-21 8775 A Humboldt Larrabee Valley; Northern Coast Ranges 701 Comment
  UC165996  Agoseris heterophylla var. heterophylla J. P. Tracy 1903-5-22 1875 Humboldt on grassy hills Alder Point 152 Comment
  SEINET200944  Agrostis Joseph P. Tracy 1927-7-17 8271 Humboldt Three cabins On lower western foothills of Chaparral Mountain. 457 Comment
  UC1541538  Agrostis Harold E. Parks May 1933 4301 a Humboldt Spruce Cove Trinidad Comment
  BLMAR321  Agrostis densiflora Jennifer Anthony-Wheeler 2002-8-9 321 Humboldt Lost Coast Headland, Trail to Guthrie creek on west facing slope 60 Comment
  UC1607846  Agrostis exarata Harold E. Parks 1935-6-1 5687 Humboldt Spruce Cove Trinidad district 64 Comment
  UC186904  Agrostis exarata Joseph P. Tracy 1911-7-7 3386 Humboldt 3 mi nw Junction of Willow Creek with Trinity River; Northern Coast Ranges 914 Comment
  UCD52437  Agrostis exarata P. B. Kennedy 1923-8-5 s.n. Humboldt west forst of Eel River, between Phillipsville and Garberville. Comment
  UCR27986  Agrostis exarata A. C. Sanders 1981-8-6 2302 Humboldt Near Orick, 1.6 mi west of Hwy 101 on Davison Road toward Gold Bluffs Beach Comment
  CAS-BOT-BC139496  Agrostis hallii Henry M. Pollard 1948-7-19 s.n. Humboldt River Road, Orleans to Red Cap Creek. Comment
  UC1103523  Agrostis hallii Joseph P. Tracy 1919-9-22 5267 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  UC1145076  Agrostis hallii Joseph P. Tracy 1947-7-3 17762 Humboldt Trinidad 3 Comment
  UC187117  Agrostis hallii Joseph P. Tracy 1908-6 2882 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UCD52682  Agrostis hallii P. B. Kennedy 1928-6-14 s.n. Humboldt Stoddard Store, near Garberville. Comment
  RSA10064  Agrostis humilis Joseph P. Tracy 1930-7-16 8989 Humboldt South Fork Mountain: at McKay Camp 1677 Comment
  HSC40393  Agrostis stolonifera Thomas W. Nelson, James Nelson 1976-7-28 3046 Humboldt W of Alder Springs along 2S08 1555 Comment
  UCD53535  Agrostis stolonifera R. Tofsrud 1948-9-1 s.n. Humboldt Salmon Creek Ranch, about 8 miles S. of Eureka. Comment
  HSC104460  Aira caryophyllea Jeff Barrett 2009-4-1 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC74428  Aira caryophyllea Gail Newton 1980-8-10 2058 Humboldt Near Blake Mountain 1707 Comment
  UC1541534  Aira caryophyllea Harold E. Parks May 1934 4946 Humboldt Spruce Cove Trinidad 91 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-BC138338  Aira caryophyllea var. caryophyllea Doris K. Kildale 1926-5-2 1890 Humboldt Willow Creek Flat. Trinity River Valley. 152 Comment
  RSA90195  Aira praecox Joseph P. Tracy 1925-3-24 11669 Humboldt Eureka, North Coast Range. Comment
  CAS-BOT-BC445358  Alisma plantago-aquatica Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek near Orleans Comment
  CHSC32836  Allium amplectens Lora L. Anderson 1981-4-25 16 Humboldt Ca. 1.5 mi ne Redwood Creek, 4.5 mi n of 299w 18 mi ne of Arcata. 228 Comment
  HSC98007  Allium amplectens Cara Witte 2007-7-8 450 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  CAS-BOT-BC460755  Allium amplectens Alice Eastwood; John Thomas Howell 1937-6-23 4832 Humboldt Near Yager Comment
  HSC2958  Allium amplectens R. Spellenberg 1965-6-14 1128 Humboldt 6 mi. E of Kneeland at Kneeland Airport Comment
  HSC44276  Allium amplectens Brad Klipfel 1973-7-1 117 Humboldt N Trinity Mtn. 1860 Comment
  CAS-BOT-BC462970  Allium bolanderi Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. Trail 914 Comment
  CAS-BOT-BC462973  Allium bolanderi Harley P. Chandler 1901-6-1 1434 Humboldt Klamath River, North Coast Ranges 243 Comment
  UC275545  Allium bolanderi Joseph P. Tracy 1923-6-26 6377 Humboldt viz. ridge n Willow Creek (between Willow and Campbell Creeks, Koby's Ranch); Northern Coast Ranges, Brannan Mountain, Koby's Ranch 762 Comment
  UC666929  Allium bolanderi Joseph P. Tracy 1933-7-9 12652 Humboldt Brannan Mountain 1066 Comment
  HSC98507  Allium bolanderi var. bolanderi Cara Witte 2007-7-8 433 Humboldt Board Camp Mountain. Pack trail 4E26. 1491 Comment
  CHSC110705  Allium falcifolium Dean Wm. Taylor 2004-6-24 19134 Humboldt Horse Mountain, along Titlow Hill Road 0.4 miles north from the junction with the road to the mountain summit; Grouse Mountain. 1310 Comment
  UC1198201  Allium falcifolium Joseph P. Tracy 1933-7-25 12891 Humboldt Grouse Mountain 1524 Comment
  CHSC33162  Allium hoffmanii Marc Baker 1980-7-11 2799 Humboldt Near Red Mountain. 226 mm from the left and 235 mm from the bottom on the quad map. 225 Comment
  UC15004  Allium membranaceum Mrs. M. H. Manning 1901-7-14 3 Humboldt trail below Mud Springs; Hupa Comment
  CDA2736  Allium triquetrum E. C. Whitney 1965-4-19 Humboldt Lamphire Road & nearby field, Arcata Bottoms. 0 Comment
  UC15002  Allium unifolium Joseph Burtt Davy 1899-6-11 5444 Humboldt between Hubbard's Station and Elk Prairie Comment
  UC1224691  Allotropa virgata D. E. Anderson 1963-5-18 2447 Humboldt about 1 mi nw of Burnt Ranch School Comment
  CAS-BOT-BC170943  Alnus rhombifolia Doris K. Kildale 1926-8-8 2457 a Humboldt Dyerville Brdige on South Fork of Eel River 45 Comment
  JEPS58618  Alnus rhombifolia W. L. Jepson 1902-7-29 2123 Humboldt Supply Creek Hupa Valley 243 Comment
  CAS-BOT-BC169536  Alnus rubra Doris K. Kildale 1928-3-30 4368 Humboldt Big Lagoon Comment
  RSA244997  Alnus rubra W. A. Heatoh 1965-4-10 23 Humboldt 0.5 mile N. of Trinidad St. Park near road to bluff. Comment
  UC1197947  Alnus rubra Joseph P. Tracy 1923-2-25 6151 Humboldt near Carlotta; Northern Coast Ranges, Van Duzen River 30 Comment
  UC1197948  Alnus rubra Joseph P. Tracy 1924-8-17 6823 Humboldt Trinidad Northern Coast Ranges 60 Comment
  UC72510  Alnus rubra H. P. Chandler 1905-5-1 Humboldt Eureka Comment
  UCD110034  Alnus rubra Linda M. Barker 1976-6-14 1602 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC99022  Alnus viridis subsp. sinuata Cara Witte 2008-7-16 908 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  HSC8884  Alopecurus geniculatus True Hoyle 1967-7-15 28267 Humboldt Dolson Ranch, 225 Bayside Rd., Arcata, next to Grade A milking barn 152 Comment
  HSC90773  Alopecurus geniculatus Gail Newton 1982-5-31 3565 Humboldt Elk River Wildlife Area, Eureka Comment
  UC573793  Alopecurus pratensis H. L. Person 1932-5-11 Humboldt Redwood Hwy. between Arcata and Eureka; Eureka Quad. 0 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-BC13711  Ambrosia chamissonis David D. Keck 1935-6-16 3385 Humboldt Mouth of Little River. Comment
  RSA26851  Ambrosia chamissonis I. L. Wiggins 1940-7-10 9486 Humboldt Big Lagoon. Comment
  HSC18509  Amelanchier alnifolia H. E. Parks, J. P. Tracy 1925-6-25 2775 Humboldt Lawrence Creek Comment
  CAS-BOT-BC142886  Amelanchier alnifolia var. semiintegrifolia Doris K. Kildale 1927-5-13 3135 Humboldt Redwood Creek at Berry's 289 Comment
  HSC31452  Amelanchier alnifolia var. semiintegrifolia D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5570 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  HSC56327  Amelanchier pallida Overton, Butler 1979-8-2 12680 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1198747  Amelanchier utahensis Joseph P. Tracy 1947-8-24 17900 Humboldt at edges Box Camp Meadow (near Box Camp); Trinity Summit 1463 Comment
  UC1198748  Amelanchier utahensis Joseph P. Tracy 1932-7-18 10719 Humboldt Head of Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  HSC39948  Ammophila arenaria Linda M. Barker 1976-6-22 1624 Humboldt 3 mi. W of Arcata Comment
  OBI65609  Ammophila arenaria G. Douglas Barbe, T. C. Fuller, Hrusa 2-2000 1974-6-19 1881 Humboldt North Coast Ranges. Mad River mouth, beach S of river, at end of Iversen Ln, Tyee City Comment
  SD41377  Ammophila arenaria Edith A. Purer 1932-7-30 4678 Humboldt South of Orick, sand dunes. Comment
  SEINET3917966  Ammophila arenaria Dziekanowski, Dunn; Bennett 1976-8-6 2504 Humboldt Collected in the vicinity of a state park on the beach opposite McKinleyville.; 0 Comment
  CAS-BOT-BC213954  Amsinckia H. E. Parks; J. P. Tracy 1930-5-25 881 Humboldt Near Bridgeville. Comment
  RSA0090986  Amsinckia intermedia H. E. Parks, J. Tracy 1930-5-25 881 Humboldt Near Bridgeville. Comment
  UC594248  Amsinckia intermedia S. K. Harris, J. P. Tracy and H. S. Yates 1936-6-17 3429 Humboldt nw slopes of Buck Mountain 822 Comment
  HSC17825  Anagallis arvensis Francis Winter 1960-4-24 Humboldt 1 mi. N of Redwood Creek Ranch 396 Comment
  SEINET11993512  Anagallis arvensis F. H. Utech 1986-1 86 -406 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  CAS-BOT-BC45131  Anaphalis margaritacea Alice Eastwood 1923-8-14 12304 Humboldt Samoa Comment
  HSC27042  Anaphalis margaritacea Brad Klipfel 1973-8-25 286 Humboldt Near Lazy L Ranch, Fickle Hill Rd. Comment
  UC933413  Anaphalis margaritacea Annie M. Alexander and Louise Kellogg 1948-9-3 5572 Humboldt Trinity River, Klamath River Comment
  HSC18009  Anemone deltoidea H. E. Parks, S. T. Parks May 1930 748 Humboldt Along Van Duzen River Comment
  HSC56079  Anemone deltoidea G. L. Clifton, Griswold 1979-7-31 11761 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  UC1196197  Anemone deltoidea Joseph P. Tracy 1935-7-28 14309 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  UC1196198  Anemone deltoidea Joseph P. Tracy 1947-7-5 17809 Humboldt near Box Camp; Trinity Summit 1524 Comment
  HSC36626  Anemone deltoidea A. M. Montalvo, J. D. Ackerman 1973-5-6 62 Humboldt Avenue of the Giants 3 mi. NW of Weott 274 Comment
  SEINET12087980  Anemone deltoidea Unknown 1936-1 13352 Humboldt near Scotia Comment
  UC1196194  Anemone deltoidea Joseph P. Tracy 1933-7-11 12711 Humboldt Grouse Mtn; North Coast Ranges; Grouse Mtn 1524 Comment
  JEPS16075  Angelica genuflexa W. L. Jepson 1936-8-17 17915 Humboldt Fields Landing, Stills Ranch Fields Landing; , Stills Ranch Comment
  UC642313  Angelica genuflexa Joseph P. Tracy 1938-9-25 16165 Humboldt near Murphy Meadows (Bald Mountain); Bald Mountain 944 Comment
  UC673053  Angelica genuflexa Joseph P. Tracy 1940-9-26 16725 Humboldt Eureka, near south city limits Eureka 6 Comment
  RSA21186  Angelica hendersonii C. B. Wolf 1937-8-11 9145 Humboldt 1/2 mile east of Alton. 21 Comment
  UC314600  Angelica hendersonii Joseph P. Tracy 1923-9-23 6560 Humboldt Northern Coast Region, Alton Alton Alton Alton; Northern Coast Region, Alton 30 Comment
  RSA246846  Angelica lucida R. F. Thorne, P. Everett 1965-8-9 35337 Humboldt Along Hwy 101 about 3 miles N of Eureka; 2 Comment
  CAS-BOT-BC271499  Anisocarpus madioides L. R. Abrams 1916-7-11 6017 Humboldt Mouth of Grizzly Creek on Van Duzen River Comment
  UC1222880  Antennaria media Joseph P. Tracy 1950-8-8 19297 Humboldt Croghan Hole Trinity Summit 1676 Comment
  HSC38792  Anthemis cotula J. D. Ackerman 1975-8-31 655 Humboldt Lanphere Rd. near Mad River Slough, Arcata Bottoms 2 Comment
  HSC5263  Anthoxanthum occidentale John Warner Hosking 1966-8-5 Humboldt Fickle Hill Rd, 1 mi. E of Arcata. Comment
  HSC5264  Anthoxanthum odoratum John Warner Hosking 1966-5-8 Humboldt Arcata bottomland, Arcata Comment
  LA9278  Anthoxanthum odoratum H. S. Yates; 1936-6-23 16830 Humboldt 2 mi E of mouth of Mad River 30 Comment
  RSA129296  Anthoxanthum odoratum H. S. Yates 1936-6-23 5853 Humboldt 2 miles E. of mouth of Mad River. 30 Comment
  UCD56274  Anthoxanthum odoratum J. W. McClellan 1924-5-26 s.n. Humboldt from Bridgeville. Comment
  JEPS5353  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1933-8-30 13004 Humboldt Horse Mountain; Northern Coast Ranges 1066 Comment
  UC162567  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1911-7-10 3482 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 243 Comment
  UC1198744  Aphanes occidentalis Joseph P. Tracy 1940-4-7 16529 Humboldt near Samoa; Humboldt Bay 6 Comment
  HSC73424  Aphanes occidentalis Robert Kirkpatrick, Doug Renwick 1981-4-3 147 Humboldt 2 mi. N of Coastguard Station on Samoa Blvd. 5 Comment
  HSC97916  Apocynum androsaemifolium Cara Witte 2007-6-14 289 Humboldt Along National Forest 1, on Kinsey Ridge, 2 mi. N of White Oak Opening 1243 Comment
  JEPS49816  Apocynum cannabinum Lincoln Constance 1934-6-11 848 Humboldt trail along e. bank of S. Fork of Eel N. Dyerville Flat; S. Fork Eel R., Bull Creek Region, N. Dyerville Flat Comment
  HSC18044  Aquilegia formosa D. E. Anderson 1965-5-1 3568 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC31632  Aquilegia formosa var. formosa Glenn McGourty 1974-4-27 18 Humboldt 1 mi. from Capetown Bridge Comment
Read comments
May 26 2016
  UC552302  Arabidopsis thaliana Joseph P. Tracy 1935-4-20 13787 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC57322  Arabis glabra Walter Overton, Butler 1979-7-23 9542 Humboldt Near Titlow Hill, close to the town of Willow Creek 1280 Comment
  HSC6523  Arabis glabra D. E. Anderson 1962-5-10 2206 Humboldt Lanphere Ranch. Comment
  HSC100458  Arabis perfoliata Carl C. Marshall Jun 1887 403 Humboldt Harris. Comment
  HSC75478  Arabis sparsiflora var. subvillosa J. O. Sawyer 1980-7-18 3625 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  CAS-BOT-BC167258  Aralia californica Doris K. Kildale 1926-11-14 2860 Humboldt Stephen's Grove near Miranda Comment
  JEPS40071  Aralia californica Lincoln Constance 1934-5-29 740 Humboldt n. bank Bull Creek opposite Squaw Creek; Bull Creek Region, W. Fork Eel R. Comment
  UC162626  Aralia californica Joseph P. Tracy 1911-7-5 3320 Humboldt near its mouth Willow Creek (tributary of Trinity R.); Northern Coast Ranges 304 Comment
  CAS-BOT-BC128697  Arbutus menziesii Doris K. Kildale 1927-4-16 3019 Humboldt Between Island Mountain and Fort Seward Comment
  HSC7595  Arbutus menziesii D. E. Anderson 1965-5-8 3665 Humboldt ca. 5 mi W of Lord Ellis summit along Hwy 299 Comment
  HSC99399  Arbutus menziesii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 48 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1389155  Arctostaphylos A. E. Wieslander 1931-5-17 2567 Humboldt Orick-Orleans rd Hoopa Quadrangle, Bald Hills Comment
  CAS-BOT-BC25209  Arctostaphylos canescens subsp. canescens J. P. Tracy 1941-4-11 16861 Humboldt Willow Creek Canyon, along Trinity Highway Comment
  CAS-BOT-BC23907  Arctostaphylos canescens subsp. sonomensis Joseph P. Tracy 1947-7-9 17861 Humboldt Horse Mountain 1432 Comment
  BLMAR245  Arctostaphylos columbiana Jennifer Anthony-Wheeler 1997-7-24 245 Humboldt Lacks Creek, growing along rdside & throughout regenerating 1219 Comment
  CAS-BOT-BC23726  Arctostaphylos columbiana Joseph P. Tracy 1933-6-13 12582 Humboldt Hoopa Mountain. Near summit on road from Hoopa westward to Bair's. Summit of barren ridge 1 mile S. of road. 1219 Comment
  CAS-BOT-BC23759  Arctostaphylos columbiana Alice Eastwood 1907-4-22 41 Humboldt Near Trinidad Comment
  CAS-BOT-BC23809  Arctostaphylos columbiana C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. between Shelter Cove and Kenny Comment
  HSC33059  Arctostaphylos columbiana Thomas W. Nelson 1974-5-7 1238 Humboldt Kneeland Rd. at jct. with Maple Creek Rd. Comment
  HSC62325  Arctostaphylos columbiana Ruby Van Deventer 1959-2-28 Humboldt Patrick's Point on Coastal Bluff Comment
  JEPS38951  Arctostaphylos columbiana Joseph P. Tracy 1933-6-13 12582 Humboldt summit of barren ridge 1 mi s road from Hoopa westward to Bair's; Hoopa Mountain 1219 Comment
  JEPS38963  Arctostaphylos columbiana Joseph P. Tracy 1935-2-9 13710 Humboldt Big Lagoon 3 Comment
  RSA622688  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27676 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  UC1198654  Arctostaphylos columbiana Joseph P. Tracy 1937-7-17 15441 Humboldt Eureka 45 Comment
  UC1198660  Arctostaphylos columbiana Joseph P. Tracy 1937-7-17 15440 Humboldt Eureka 45 Comment
  UCD50679  Arctostaphylos columbiana Joseph P. Tracy 1937-7-17 15439 Humboldt Eureka. 45 Comment
  UCD50745  Arctostaphylos columbiana Roman Gankin 1965-8-5 543 A Humboldt Top of Chimisal Mountain west of Wailaki Recreation Area, Bureau of Land Management. Comment
  CAS-BOT-BC23736  Arctostaphylos columbiana C. Hart Merriam 1921-7-7 s.n. Humboldt Ridges west of the Van Duzen River. Comment
  SEINET11977760  Arctostaphylos columbiana J. P. Tracy 1950-1 19252 Humboldt Grasshopper Peak, Bull Creek State Park Comment
  SEINET11984909  Arctostaphylos columbiana Unknown 1965-1 543 A Humboldt top of Chimisal Mountain W of Wailaki Recreation Area, Bureau of Land Management Comment
  HSC7629  Arctostaphylos glandulosa Unknown Humboldt 1 mi. W of Queens Rd. 610 Comment
  RSA632810  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27777 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  RSA633025  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27805 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  CAS-BOT-BC24364  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1926-8-22 2575 Humboldt Bald Hills near Imbinson's. Comment
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Sep 27 2020
  CAS-BOT-BC24367  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1926-9-5 2614 Humboldt Lesseck's Peaks. 1371 Comment
  CAS-BOT-BC38838  Arctostaphylos manzanita subsp. manzanita C. Hart Merriam 1920-9-14 s.n. Humboldt Mts. near Willow Creek (1st ridge west of Trinity River on Willow Creek Road) Comment
  JEPS38924  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-4-3 15247 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS38928  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-4-3 15246 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC44397  Arctostaphylos nevadensis Brad Klipfel 1975-5-24 631 Humboldt Horse Mtn. Comment
  HSC7779  Arctostaphylos nevadensis D. E. Anderson 1965-6-1 3759 Humboldt Horse Mountain, S facing slope 1220 Comment
  RSA46717  Arctostaphylos nevadensis Doris K. Kildale 1967-8-15 15335 Humboldt High Divide. Comment
  HSC99104  Arctostaphylos nevadensis subsp. nevadensis C. Witte 2007-5-17 29 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. Near utility towers. 1483 Comment
  UC1173708  Arctostaphylos patula Joseph P. Tracy 1939-8-16 16419 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC47216  Arctostaphylos uva-ursi Joseph P. Tracy 1940-10-3 s.n. Humboldt Near Samoa, on Humboldt Bay. 6 Comment
  HSC7727  Arctostaphylos uva-ursi J. W. Johnson 1961-8-17 1013 Humboldt W.M. Lanphere Farm, Samoa Peninsula Comment
  UC527561  Arctostaphylos uva-ursi C. B. Wolf 1931-8-30 2374 Humboldt Samoa Humboldt Bay 7 Comment
  UCD52047  Arctostaphylos uva-ursi Roman Gankin; W. R. Hildreth 1967-10-24 1147 Humboldt 1.7 miles s. of Samoa, on the Humboldt Peninsula. Humboldt County, California. Comment
  RSA183565  Arctostaphylos uva-ursi var. coactilis R. I. Bonn 1965-4-3 13 Humboldt Four miles west of Arcata on Lanphere Rd. Comment
  UC1173712  Arctostaphylos viscida subsp. viscida Joseph P. Tracy 1939-4-29 16265 Humboldt Orleans 121 Comment
  UC1198658  Arctostaphylos viscida subsp. viscida Joseph P. Tracy 1939-4-29 16258 Humboldt 2 mi sw Orleans; Klamath River 121 Comment
  CDA10101  Arctotheca prostrata Gordon Leppig 2000-4-9 1288 Humboldt Arcata. Union Street at 7th Street. South of Phillips House. Comment
  UC1103321  Aristida oligantha Joseph P. Tracy 1921-9-4 5951 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  RSA296782  Armeria maritima subsp. californica Clark L. Miller 1979-5-24 2 -150 Humboldt Samoa Dunes off Samoa Blvd. Comment
  UC154174  Armeria maritima subsp. californica Harley P. Chandler May, 1901 1153 Humboldt Humboldt Bay North Coast Ranges 3 Comment
  UCR122371  Armeria maritima subsp. californica George K. Helmkamp, E. A. Helmkamp 2001-7-8 7017 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  HSC22847  Arnica cernua D. E. Anderson, J. O. Sawyer, J. P. Smith 1970-5-10 5052 Humboldt ca. 6 miles W of Hoopa, along road from Redwood Creek to Hoopa Comment
  HSC99042  Arnica cernua Cara Witte 2008-6-4 681 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1276 Comment
  HSC98683  Arnica discoidea Cara Witte 2008-7-11 882 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  HSC49998  Arnica discoidea M. A. Baker 1979-6-7 790 Humboldt W slope of Snow Mtn. 762 Comment
  UC129316  Arnica discoidea Joseph Burtt Davy and Walter C. Blasdale 1899-7-19 5668 Humboldt Hoopa Mt. North-Western California, Hoopa Mt. Comment
  HSC67028  Artemisia douglasiana J. P. Smith 1970-6-7 3811 Humboldt 0.6 mi. N of Luffenholtz Beach, along Hwy. 101, near Trinidad. Comment
  HSC46965  Artemisia pycnocephala J. P. Smith, Thomas W. Nelson 1977-6-30 9216 Humboldt Samoa Peninsula just E of the drag strip. Comment
  HSC4746  Artemisia pycnocephala David Adams 1960-7-17 Humboldt 2 miles S of Samoa 0 Comment
  SDSU6205  Artemisia suksdorfii D. F. Howe 1963-7-8 3620 Humboldt 2.5 miles west of Bridgeville on #36. 152 Comment
  UC154505  Aruncus dioicus var. pubescens Harley P. Chandler Jun 1901 1527 Humboldt Klamath River; North Coast Region 426 Comment
  HSC100257  Arundo donax J. P. Smith 2009-8-3 12642 Humboldt Along Hwy. 254 in Pepperwood. 51 Comment
  UCR3539  Asarum caudatum David Whistler, H. M. Whistler 1964-7-31 640731- 8 Humboldt North Coast, at Del Norte county line on US Hwy 101 [between Orick and Klamath] 137 Comment
  HSC3273  Asarum hartwegii Doris K. Kildale 1926-5-2 1876 Humboldt Willow Creek Comment
  HSC3274  Asarum hartwegii D. E. Anderson 1965-5-8 3647 Humboldt About 3 mi. N of Willow Creek along rd. on E side of Trinity River. Comment
  HSC56479  Asarum hartwegii Griswold, Butler 1979-7-12 7310 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  HSC57099  Asarum hartwegii Overton, Butler 1979-7-25 9828 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  HSC63850  Asarum hartwegii M. A. Baker 1979-6-27 915 Humboldt Comment
  CAS-BOT-BC400744  Asarum lemmonii Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC40034  Asclepias cordifolia Thomas W. Nelson, Jane P. Nelson 1976-6-22 2881 Humboldt Just E of Goat Mtn. lookout. 1666 Comment
  HSC40010  Aspidotis densa Thomas W. Nelson, Jane Nelson 1976-7-1 2906 Humboldt Along ridge N of Bear Creek 1463 Comment
  RSA53857  Aspidotis densa Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mountain 1524 Comment
  HSC92746  Astragalus agnicidus Robin Bencie 1993-6-15 1 Humboldt Miranda, 2 mi. W of Hwy. 101 on Bear Butte Rd. 500 Comment
  NY5297  Astragalus agnicidus H. Tosten 1931-6-7 s.n. Humboldt Near Bear Buttes, 4 mi S of Miranda. Local on Tosten and Pierce Ranch. Comment
  UC201698  Astragalus rattanii var. rattanii unknown 1884-6-1 Humboldt Black Butte Comment
  HSC100358  Astragalus umbraticus J. McRae 1996-7-25 Humboldt Orleans Ranger District, off F.S. Rd. 11N16-C at mile post 1. 707 Comment
  JEPS118177  Astragalus umbraticus Dean W. Taylor 2009-7-14 20674 Humboldt vicinity Lake Prairie, reached via Guy Kerr Ranch Road off Snow Camp Road 1133 Comment
  SEINET948796  Astragalus umbraticus Joseph P. Tracy 1914-1 4595 Humboldt Bal mountians, between high prairie and snow camp. 1219 Comment
  UC1222420  Astragalus umbraticus Joseph P. Tracy 1940-8-25 16706 Humboldt at Lake Prairie , at Lake Prairie (Bald Mountain) 1066 Comment
  UC179937  Astragalus umbraticus Joseph P. Tracy 1914-7-5 4575 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mt., betw High Prairie-Snow Camp 1219 Comment
  HSC103946  Astragalus umbraticus T. Salzberg 1996-7-26 186 Humboldt Six Rivers National Forest; Forest Service Rd. 11N16, which is a tributary of Slate Creek Road. 1293 Comment
  HSC76275  Asyneuma prenanthoides Teresa Prendusi 1981-7-9 169 Humboldt Near Cedar Camp. 1268 Comment
  OBI1147  Athyrium filix-femina Robert J. Rodin 1962-9-5 6979 Humboldt Prairie Creek State Park Comment
  HSC54545  Athyrium filix-femina var. cyclosorum Overton, Butler 1979-7-23 9532 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC32331  Athysanus pusillus D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5671 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge Comment
  UC1198296  Athysanus pusillus Joseph P. Tracy 1937-5-16 15283 Humboldt nw of Harris 914 Comment
  UC181262  Avena barbata Joseph P. Tracy 1913-6-13 4114 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  UCD56227  Avena barbata A. H. Murphy 1951-3-30 s.n. Humboldt Beside county road. 6 miles south of Petrolia near Mattole Valley Range Hall. Comment
  RSA246915  Azolla filiculoides Robert F. Thorne, Percy C. Everett 1965-8-9 35325 Humboldt Clam Beach County Park: along highway. 3 Comment
  CAS-BOT-BC98770  Baccharis douglasii Frank W. Peirson 1926-7-13 7061 Humboldt Mad River, vicinity of Blue Lake Comment
  HSC40410  Baccharis douglasii Thomas W. Nelson, James Nelson 1976-7-28 3061 Humboldt Beside SR 36 at Grizzly Creek Comment
  RSA46906  Baccharis pilularis Doris K. Kildale 1926-11-27 2845 Humboldt Alton Hill 30 Comment
  UC169039  Baccharis pilularis Joseph P. Tracy 1912-10-20 4003 Humboldt Alton 30 Comment
  UCD129438  Baccharis pilularis subsp. consanguinea Linda M. Barker 1976-9-3 1691 Humboldt 3 miles west of Arcata. Comment
  HSC48865  Barbarea orthoceras Brad Klipfel 1973-6-10 58 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC100357  Bensoniella oregana T. Jimerson, S. L. Birch 1980-7-11 975 Humboldt Snow Camp Mountain, Rooster Rock. 1280 Comment
Read comments
Nov 6 2018
  HSC62831  Bensoniella oregona William Davilla 1980-10-16 1219 Humboldt Snow Camp Mtn. 1390 Comment
  SJSU2887  Berberis aquifolium var. aquifolium R. D. Spadoni 1965-3-27 3 Humboldt 0.25 mi SE of Dinsmore on State Rte 36 762 Comment
  HSC73808  Berberis aquifolium var. repens M. A. Baker 1980-6-16 1930 Humboldt Near Monks Camp. 1097 Comment
  CHSC23182  Berberis nervosa Robert F. Thorne; P. Everett 1965-8-5 35138 Humboldt Mt. Chamisal: Below summit. 533 Comment
  HSC31651  Berberis nervosa Timothy B. Devine 1974-5-4 321 Humboldt 1/4 mi. N of junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  HSC57110  Berberis nervosa Overton, Butler 1979-7-25 9851 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  UC1174869  Berberis nervosa P. C. Everett and E. K. Balls 1959-10-25 23966 Humboldt 8.8 mi ne from Blue Lake (US Hwy 299, Arcata to Willow Creek) 274 Comment
  RSA24106  Berberis pinnata C. B. Wolf 1941-3-2 9989 Humboldt N. Coast Range. Bull Creek-Petrolia Road. 1/4 mi. s. of Panther Gap. 549 Comment
  RSA246849  Berberis pinnata R. F. Thorne, P. Everett 1965-8-5 35141 Humboldt 5.2 miles N of junction of Horse Mt. and Shelter Cove Roads. 457 Comment
  UCSB8245  Blechnum spicant Robbins, G. 1936-8-1 Humboldt Near Strong's Station. Comment
  UC492238  Boechera platysperma Joseph P. Tracy 1932-7-12 10458 Humboldt Head of Brett Hole Klamath Mountains, Trinity Summit 1828 Comment
  HSC74466  Boschniakia strobilacea M. A. Baker 1980-5-17 1200 Humboldt Near Le Perron Peak 792 Comment
  JEPS13526  Boschniakia strobilacea W. L. Jepson 1902-7-16 2052 Humboldt Trinity Summit. 2133 Comment
  HSC76264  Boykinia major Denis Kearns 1981-7-23 410 Humboldt Near Whiteys Peak. 1524 Comment
  HSC64874  Boykinia occidentalis J. P. Smith 1973-5-26 6845 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC1198853  Boykinia occidentalis Joseph P. Tracy 1927-6-19 8191 Humboldt Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  HSC67082  Boykinia occidentalis Richard Spjut 1980-5-19 6198 Humboldt Between Willow Creek and Hoopa along Hwy. 96 Comment
  RSA32654  Boykinia occidentalis Doris K. Kildale 1925-7-28 1100 Humboldt [Unspecified] Comment
  HSC6582  Brassica rapa D. E. Anderson 1962-2-10 1922 Humboldt 1.5 mi. S of Trinidad Comment
  HSC6584  Brassica rapa Richard Steele 1962-2-25 2 Humboldt Arcata, 0.5 mi. W of HSU campus 15 Comment
  CAS-BOT-BC106296  Brickellia californica Carl B. Wolf 1927-8-27 1158 Humboldt On the Klamath River 2 mi. below the Salmon River Comment
  RSA47176  Brickellia californica Doris K. Kildale 1926-8-8 2480 Humboldt Dyerville, river bar in Eel River Comment
  RSA94123  Brickellia californica F. W. Peirson 1926-7-13 7048 Humboldt Mad River, vicinity of Blue Lake. Comment
  UC1145097  Briza maxima Joseph P. Tracy 1950-5-30 18711 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC484217  Brodiaea elegans subsp. elegans Doris K. Kildale 1926-6-27 2209 Humboldt Larabee Valley 701 Comment
  RSA114096  Brodiaea stellaris Rimo C. Bacigalupi, Lincoln Constance 1951-6-13 3406 Humboldt Along State Highway 36, five miles east of Bridgeville. Comment
  UC666939  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1933-5-20 12249 Humboldt 1 mi w Petrolia; Northern Coast Ranges, Mattole Valley 91 Comment
  CAS-BOT-BC484614  Brodiaea terrestris subsp. terrestris D. E. Breedlove 1962-6-7 3038 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  CAS-BOT-BC149565  Bromus carinatus var. carinatus Harold E. Parks; Joseph P. Tracy 1935-6-8 11269 Humboldt Trinidad. 60 Comment
  SEINET943640  Bromus carinatus var. carinatus T. R. Van Devender, R. K. Van Devender 1990-1 90 -105 Humboldt Paticks Point State Park, near Trinidad Comment
  UC37586  Bromus carinatus var. carinatus Joseph Burtt Davy 1899-6-8 5351 Humboldt near Bell's Springs Comment
  CAS-BOT-BC155993  Bromus diandrus Doris K. Kildale 1926-5-2 1902 a Humboldt Willows Creek Flat. 152 Comment
  HSC45110  Bromus diandrus R. Sutherland 1978-5-13 4 .13578 Humboldt Mattole River. 282 Comment
  HSC9285  Bromus diandrus R. E. Hafenfeld 1965-5-9 50 Humboldt Junction of County Rd. and Gold Bluff Beach Rd. Comment
  HSC45109  Bromus diandrus R. Sutherland 1978-4-25 10 .25478 Humboldt 9 Comment
  CAS-BOT-BC155428  Bromus hordeaceus Doris K. Kildale 1929-5-26 9132 Humboldt Klamath River at Orleans. 152 Comment
  JEPS72930  Bromus hordeaceus Lincoln Constance 1934-5-26 673 Humboldt Bull Creek Region, South Fork Eel River, s end of Dyerville Bridge South Fork Eel River; Bull Creek Region, , Dyerville Bridge 45 Comment
  HSC26618  Bromus laevipes J. P. Smith, Steve Selva 1970-6-14 3846 Humboldt Along Hwy. 96 at Whitmore Creek. 152 Comment
  UC1145183  Bromus madritensis subsp. rubens Joseph P. Tracy 1948-6-13 18053 Humboldt Harris 762 Comment
  HSC40577  Bromus orcuttianus Thomas W. Nelson, James Nelson 1976-7-28 3047 Humboldt W of Alder Springs along 2S08 1555 Comment
  HSC99460  Bromus orcuttianus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 114 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
  UC188957  Bromus racemosus J. Burtt Davy and W. C. Blasdale 1899-7-30 6188 Humboldt Bear River Ridge; North Coast Ranges, Bear River Ridge Comment
  OBI22448  Bromus sitchensis Joseph P. Tracy 1937-5-31 15318 Humboldt Trinity River Valley, at Willow Crk Comment
  CAS-BOT-BC161606  Bromus sterilis Joseph P. Tracy 1935-6-23 13980 Humboldt French Camp Ridge. 1066 Comment
  UC277174  Bromus sterilis Joseph P. Tracy 1921-5-30 5493 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC185521  Bromus vulgaris Henry M. Pollard 1948-8-4 s.n. Humboldt Orleans Mountain Trail. 1371 Comment
  HSC40044  Cacaliopsis nardosmia Thomas W. Nelson, Jane P. Nelson 1976-7-1 2897 Humboldt Along ridge N of Bear Creek 1463 Comment
  UC1198277  Cakile edentula Joseph P. Tracy 1941-8-3 16978 Humboldt at w foot of Table Bluff Table Bluff 3 Comment
  UC1198280  Cakile edentula Joseph P. Tracy 1946-1-13 17518 Humboldt Centerville Beach 3 Comment
  SEINET10481270  Cakile maritima Chester T. Dziekanowski, David B. Dunn; Charlene A. Bennett 1976-8-6 Dziekanowski 2502 Humboldt Collected in the vicinity of a state park on the beach opposite of mckinleyville. Vast colony of yellow lupinus arboreus. Comment
  UCD114935  Cakile maritima M. Barbour 1969-9-4 s.n. Humboldt Just west of Trinidad and north, across isthmus from Trinidad Bay. Comment
  RSA647567  Cakile maritima var. maritima William Gilbert 1970-6-3 s.n. Humboldt 101 Hwy, 10 miles S [of] Klamath River. Comment
  UC187252  Calamagrostis nutkaensis J. P. Tracy 1901-6-30 1192 Humboldt Immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC438312  Calandrinia ciliata Doris K. Kildale 1926-5-2 1887 Humboldt Horse Mountain cut-off on Willow Creek road. 792 Comment
  UC1198380  Calandrinia ciliata Joseph P. Tracy 1933-5-28 12405 Humboldt Ocean View Cemetary Eureka 15 Comment
  RSA53787  Callitriche heterophylla H. M. Pollard 1946-8-13 s.n. Humboldt Pond near Harley Place. Orleans region. Comment
  SBBG115082  Calochortus amabilis D. Leaberry 1991-6-13 Humboldt Hwy 254 (Avenue of the Giants), ca. 1 mi S of Phillipsville Comment
  CAS-BOT-BC488454  Calochortus amabilis Ella Dales Cantelow 1939-6-4 2442 Humboldt 6 1/10 mi. w. of Alder Point on road to Bridgeville. Comment
  UC198648  Calochortus tolmiei Joseph P. Tracy 1917-5-30 4813 Humboldt w of Dows Prairie; Northern Coast Ranges 15 Comment
  UCD139586  Calochortus tolmiei Thomas W. Nelson; James L. Nelson 1980-6-10 5427 Humboldt along road to Red Mountain. 1371 Comment
  UC201997  Calochortus vestae Joseph P. Tracy 1918-7-29 4513 Humboldt Eureka Northern Coast Ranges Comment
  CAS-BOT-BC273318  Calycadenia fremontii Joseph P. Tracy 1938-8-14 16117 Humboldt South Fork of Trinity River 304 Comment
  JEPS20233  Calycadenia fremontii Joseph P. Tracy 1938-8-14 16117 Humboldt South Fork of Trinity River, mountain slopes w of its mouth South Fork of Trinity River 304 Comment
  BLMAR74  Calypso bulbosa Jennifer Anthony-Wheeler 1994-6-2 74 Humboldt IAQUA 1036 Comment
  UC275535  Calypso bulbosa Joseph P. Tracy 1924-3-30 6631 Humboldt near Bridgeville (Northern Coast Ranges); Northern Coast Ranges 182 Comment
  HSC30129  Calypso bulbosa A. M. Montalvo, J. D. Ackerman 1974-4-14 170 Humboldt 100 m from intersection with Hwy. 299 along Chezem Rd., just W of Redwood Creek Comment
  RSA168802  Calypso bulbosa Joseph P. Tracy 1950-5-7 18643 Humboldt Under firs: about 5 miles north of Bridgerville on the road to the South Yager Valley. Abundant in certain favored spots only. Comment
  HSC55149  Calyptridium monospermum G. L. Clifton, Terry Griswold 1979-8-1 12075 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  JEPS52547  Calyptridium umbellatum P. E. Goddard 1906-6 672 Humboldt Lasseck Peak Comment
  HSC74028  Calystegia occidentalis subsp. occidentalis Gail Newton 1980-7-11 1315 Humboldt Near Red Mtn. 1341 Comment
  UC198628  Calystegia soldanella Joseph P. Tracy 1917-5-30 4803 Humboldt sand dunes near Little River; Northern Coast Ranges, near Little River 6 Comment
  UC1197671  Camassia quamash J. P. Tracy 1901-6-23 1181 Humboldt immediate vicinity of Eureka 0 Comment
  HSC104413  Camassia quamash Adam N. Canter 2017-5-12 7 Humboldt Table Bluff Ecological Reserve Comment
  CAS-BOT-BC493385  Camassia quamash subsp. linearis Volney Rattan 1878-1-1 s.n. Humboldt unspecified Comment
  HSC90189  Camissonia cheiranthifolia Jean Hanson 1980-5-24 53 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka. W end of island Comment
  NY679547  Camissonia cheiranthifolia subsp. cheiranthifolia A. A. Heller 1924-7-24 13881 Humboldt At Humboldt County camp, 7 miles S of Trinidad. Comment
  RSA697219  Camissonia cheiranthifolia subsp. cheiranthifolia George K. Helmkamp, E. A. Helmkamp 2001-7-8 7021 Humboldt North coast: Samoa Peninsula, 2.6 miles S of CA-255 bridge across Humboldt Bay. 15 Comment
  SEINET10462967  Campanula prenanthoides Stephen S. Tillett 1956-7-6 Tillett 612 Humboldt Area cleared by logging and fire, south slope along Bar Shanty Road, 5 miles from Orleans 488 Comment
  SEINET10463063  Campanula prenanthoides Van Dke 1931-6-30 VAN DYKE s.n. Humboldt WILLOW CREEK Comment
  SEINET10463114  Campanula prenanthoides Willis L. Jepson 1932-7-26 Jepson 16413 Humboldt BULL CREEK Comment
  SEINET10873263  Campanula prenanthoides Tracy 1927-8-14 TRACY 8330 Humboldt BIG LAGOON, DAMP BANKS IN FERN PRAIRIES 400 Comment
  SEINET10873292  Campanula prenanthoides Etienne 1972-9-4 Etienne s.n. Humboldt Lumber Rd to Klamath R. Ca. 8 mi inland 1 mi. N of Co. line 100 Comment
  SEINET10905895  Campanula prenanthoides Aven Nelson, Ruth A. Nelson 1977-7-30 Nelson 3662 Humboldt In dry oak woodland beside State Route 36 about 1 mile east of Dinsmore. T1N R5E SEC.3 732 Comment
  SEINET10463756  Campanula scouleri Chesnut 1888-6-19 CHESNUT s.n. Humboldt Pilot Ridge Comment
  SEINET10905968  Campanula scouleri Wolf 1934-7-2 WOLF 5854 Humboldt 2 MI FROM BALD MT ON RD TO KORBEL SEMISHADE, COMMON 762 Comment
  UC602560  Campanula scouleri Joseph P. Tracy 1937-7-25 15560 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  CAS-BOT-BC37020  Capsella bursa-pastoris Doris K. Kildale 1926-8-29 2591 Humboldt Van Duzen River, near Strongs Station. Comment
  UC492266  Capsella bursa-pastoris Joseph P. Tracy 1932-7-16 10649 Humboldt Corral Prairie; Klamath Mountains, Corral Prairie 1524 Comment
  HSC36515  Cardamine californica J. D. Ackerman, A. M. Montalvo 1973-4-29 50 Humboldt 3 mi. E of Kneeland on road to Maple Creek 457 Comment
  UC1199189  Cardamine californica Joseph P. Tracy 1905-4-2 2160 Humboldt near Blue Lake; Northern Coast Ranges, near Blue Lake 30 Comment
  UC492257  Cardamine californica var. californica Joseph P. Tracy 1927-3-27 7863 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 457 Comment
  HSC99003  Cardamine californica var. californica Cara Witte 2008-6-18 744 Humboldt Horse Mountain Botanical Area. 3/4 mile west of intersection 6N36, 6N36A. 1375 Comment
  HSC60299  Cardamine nuttallii Phyllis Krieg 1979-5-8 Humboldt 0.25 mi. E of Old Arcata Rd. on Golf Course Rd., Bayside, next to a house 15 Comment
  UCR45400  Cardamine oligosperma Barry Silver 1986-4-23 539 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  HSC90418  Cardamine oligosperma Jean Hanson 1980-3-8 27 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC100460  Cardamine paucisecta Carl C. Marshall Mar 1886 154 Humboldt Everywhere. Comment
  CAS-BOT-BC38127  Cardamine pensylvanica Joseph P. Tracy 1937-7-2 15401 Humboldt Trinity Summit. Head of Little Hors-Linto Creek. 1371 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
  POM148066  Cardionema ramosissimum J. B. Feudge 1923-7-21 129 Humboldt Ferndale. Comment
  RSA32661  Cardionema ramosissimum Doris K. Kildale 1925-7-2 904 Humboldt Table Bluff beach. Comment
  HSC74695  Carex abrupta Gail Newton 1981-8-7 2462 Humboldt Near Board Camp Mtn. 1478 Comment
  CAS-BOT-BC18001  Carex aquatilis var. dives Joseph Prince Tracy 1934-7-30 13504 Humboldt Dry Lagoon (along coast in front of South End of Stone Lagoon). 3 Comment
  UCD149856  Carex aquatilis var. dives H. McC.; William Anderson 1964-8-5 s.n. Humboldt Dry Lagoon. Comment
  CHSC84737  Carex bolanderi L. P. Janeway 2003-7-27 7929 Humboldt North Coast. On ridge between Stone Lagoon, Dry Lagoon and the beach (Sharp Point). Along trail. 823 Comment
  HSC75485  Carex bolanderi J. O. Sawyer 1980-7-18 3604 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  RSA246855  Carex bolanderi Robert F. Thorne, Percy C. Everett 1965-8-5 35136 Humboldt Mt. Chamisal: below summit. 747 Comment
  HSC63135  Carex bolanderi M. A. Baker 1979-6-29 967 Humboldt Comment
  HSC96554  Carex buxbaumii Gordon Leppig 1997-6-19 448 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  JEPS25965  Carex concinnoides Joseph P. Tracy 1927-6-19 8190 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 60 Comment
  UC562262  Carex densa Joseph P. Tracy 1927-5-30 8095 Humboldt vicinity of Garberville 121 Comment
  UC1103113  Carex deweyana subsp. leptopoda Joseph P. Tracy 1937-6-20 15344 Humboldt 10 mi up stream mouth of Bear River; Bear River 152 Comment
  SEINET10823148  Carex echinata Pykala 1987-6-11 PYKALA 1611 Humboldt North Trinity Mountain Wilderness, W of Crogan Hole, Abies concolor-forest, open springy mountainmeadow by a little stream, surrounded by Alnus-thickets. 1554 Comment
  CHSC97053  Carex echinata subsp. phyllomanica Gordon Leppig 1998-6-8 798 Humboldt Big Lagoon County Park. Big Lagoon Bog. Common in northern section. NAD27 UTM Zone 10, 405321E 4557202N. 3 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
  UC1103075  Carex globosa Joseph P. Tracy 1933-6-7 12521 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River 91 Comment
  CAS-BOT-BC22310  Carex harfordii Joseph Prince Tracy 1938-7-18 16083 Humboldt At Eureka. 30 Comment
  CAS-BOT-BC22316  Carex harfordii Joseph Prince Tracy 1927-7-17 8279 Humboldt Three Cabins; grassy slopes on lower western foothills of Chaparral Mountain. Edge of pond. 457 Comment
  UCR66610  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Bull Creek at the South Fork of the Eel River 50 Comment
  CHSC90283  Carex hoodii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8534 Humboldt North Coast Ranges. Along Forest Road 13N01 18 miles from junction with State Route 96. 1066 Comment
  HSC102230  Carex jonesii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1151 Humboldt Patterson Meadows 1555 Comment
  CAS-BOT-BC7793  Carex laeviculmis Joseph Prince Tracy 1932-7-16 10635 Humboldt Trinity Summit 1584 Comment
  HSC99369  Carex lenticularis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 18 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CAS-BOT-BC21120  Carex leptalea Joseph Prince Tracy 1918-7-21 5086 Humboldt Northern Coast Range. Humboldt Hill. 91 Comment
  HSC7139  Carex leptalea B. D. Rogers 1965-10-2 1021 Humboldt Big Lagoon 0 Comment
  CAS-BOT-BC31661  Carex lyngbyei Joseph Prince Tracy 1927-7-16 8428 Humboldt Near mouth of Elk River, Humboldt Bay. 3 Comment
  JEPS79958  Carex mariposana Joseph P. Tracy 1936-6-17 14954 Humboldt lower foothills of nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  UC562725  Carex mendocinensis Joseph P. Tracy 1935-7-14 14086 Humboldt North Coast Ranges. Grouse Mountain. Comment
  CHSC84738  Carex microptera L. P. Janeway 2003-7-26 7920 Humboldt High North Coast Ranges. South side (above) Road 5N04, 0.5 km northeast of the top of Grouse Mountain. 1554 Comment
  CAS-BOT-BC31948  Carex microptera Joseph Prince Tracy 1935-7-14 14087 Humboldt Grouse Mountain, wet meadow. 1524 Comment
  UC1103567  Carex multicaulis Joseph P. Tracy 1936-6-10 14937 Humboldt w of mouth South Fork Trinity River; North Coast Ranges 457 Comment
  POM126515  Carex nudata Joseph P. Tracy 1922-5-29 6069 Humboldt South Yager Creek Valley. 762 Comment
  UC562318  Carex nudata Joseph P. Tracy 1927-5-30 8082 Humboldt near Garberville (Redwood Creek) 121 Comment
  RSA122793  Carex obnupta H. S. Yates 1936-6-16 5653 Humboldt 0.5 mile southwest of Samoa. Comment
  RSA88853  Carex ovalis Alice Eastwood, John Thomas Howell 1937-6-23 4790 Humboldt Near Dinsmore s. Comment
  CHSC107145  Carex pachycarpa R. E. Brainerd 2009-7-23 1570 Humboldt Coast Range, South Fork Mountain; headwaters of Kerlin Creek; 19.6 air miles west-northwest of Hayfork; Forest Service Road 3N32. UTM zone 10 453507E 4494866N. 1716 Comment
  HSC45390  Carex pachystachya Thomas W. Nelson, Jane P. Nelson 1978-7-2 4406 Humboldt Off FS 2S08 near Pine Mtn., road to Lost Lake 1463 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
  CAS-BOT-BC119166  Carex pansa Joseph Prince Tracy 1935-7-18 14104 Humboldt Low sandy growth at edge of sald marsh next to Table Bluff. 3 Comment
  HSC75279  Carex rostrata J. O. Sawyer, D. A. Thornburgh 1980-9-9 4076 Humboldt Mill Creek Lake and surrounding meadows Comment
  CAS-BOT-BC28309  Carex scopulorum var. bracteosa Joseph Prince Tracy 1932-7-14 10562 Humboldt Trinity Summit, Corral Prairie, in wet meadow. 1584 Comment
  CHSC102857  Carex subbracteata Peter F. Zika 2009-6-16 24497 Humboldt Outer North Coast Range. Above Chezen Road, at junction with Route 299; between Lord-Ellis and Berry summits. 510 Comment
  SEINET7486520 Image available Carex subbracteata Peter F. Zika 2009-6-16 24497 Humboldt bove Chezen Road, at junction with Route 299, Outer North Coast Range (NCoRO), between Lord-Ellis and Berry summits 150 Comment
  CAS-BOT-BC116909  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-6-22 4737 Humboldt Near Alder Point Comment
  CAS-BOT-BC115569  Carex tumulicola Alice Eastwood; John Thomas Howell 1937-6-22 4745 Humboldt Near Blocksburg Comment
  CAS-BOT-BC115535  Carex unilateralis Joseph Prince Tracy 1937-8-7 15618 Humboldt Bald Mountain. Wet place on Murphy Ridge. 914 Comment
  RSA152530  Carex unilateralis Joseph P. Tracy 1946-5-30 17539 Humboldt Wet gully in grassland near Bridgeville. 457 Comment
  UC249753  Carex viridula var. viridula Joseph P. Tracy 1924-7-13 6720 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC99012  Castilleja affinis subsp. affinis C. Witte 2007-5-10 19 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1368 Comment
  HSC23744  Castilleja affinis subsp. litoralis Tim Baroni 1971-7-6 115 Humboldt 3 mi. S of Ferndale on Mattole Rd. Comment
  JEPS25792  Castilleja affinis subsp. litoralis L. R. Heckard 1960-8-23 1210 Humboldt about 0.5 mi s Dry Lagoon State Park (near Orick) 152 Comment
  JEPS76824  Castilleja ambigua subsp. humboldtiensis L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1978-5-27 4804 Humboldt about 1.2 mi n Eureka bridge (Samoa peninsula); Samoa peninsula Comment
  JEPS26533  Castilleja applegatei subsp. martinii Joseph P. Tracy 1927-5-14 8001 Humboldt near South Fork; Trinity River Valley 182 Comment
  HSC72403  Castilleja applegatei subsp. pinetorum J. P. Smith 1973-5-26 6834 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  JEPS24219  Castilleja applegatei subsp. pinetorum Peter H. Raven with R. Snow 1958-7-20 13636 Humboldt 2.0 mi s junction of Titlow Hill and Friday Ridge roads (near Grouse Mountain) Comment
  HSC55994  Castilleja miniata Overton, Butler 1979-7-31 11425 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC99512  Castilleja miniata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 174 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  CAS-BOT-BC244882  Castilleja miniata E. A. McGregor 1921-8-8 s.n. Humboldt 3 miles up Klamath River Comment
  HSC35593  Castilleja pruinosa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2004 Humboldt French Camp, Bald Hills. Comment
  UC1196746  Castilleja pruinosa Joseph P. Tracy 1942-6-23 17227 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UC1502127  Ceanothus R. Sutherland 1975-7-1 2 .1.7 75 Humboldt along Baker Creek; Garberville Quad., along Baker Creek 335 Comment
  UCD111746  Ceanothus cuneatus Roman Gankin; W. R. Hildreth 1966-3-15 698 Humboldt State Highway 96, 8.4 miles north of Hoopa. Comment
  HSC92755  Ceanothus foliosus var. foliosus J. R. McFarland 1997-4-10 Humboldt 3.7 mi N on King Range Rd. from Shelter Cove Rd. near peak 602 Comment
  RSA600899  Ceanothus foliosus var. foliosus Louis C. Wheeler 1959-8-1 7619 Humboldt Queens Peak Mine. Comment
  HSC37592  Ceanothus foliosus var. vineatus R. Sutherland 1975-5-17 0 .17575 Humboldt Edge of Horse Mtn. 534 Comment
  HSC43178  Ceanothus gloriosus var. exaltatus R. Sutherland 1975-6-19 0 .19675 Humboldt Kelly Rd. ENE of Shelter Cove 640 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
  CAS-BOT-BC50053  Ceanothus incanus Joseph P. Tracy 1935-5-25 13824 Humboldt Larrabee Creek, near Bosworth's 304 Comment
  UC1502128  Ceanothus incanus R. Sutherland 1975-5-13 1 Humboldt Shelter Cove at King Range sign Garberville Quad. Comment
  CAS-BOT-BC63684  Ceanothus integerrimus Harley P. Chandler 1901-6-1 1338 Humboldt Hupa Indian Reservation. 152 Comment
  UC1070740  Ceanothus integerrimus A. E. Wieslander 1931-5-19 202 Humboldt Near Orleans Hoopa quad., Klammath Forest Comment
  UC1198006  Ceanothus integerrimus Joseph P. Tracy 1937-6-26 15365 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC51207  Ceanothus parryi W. R. Dudley 1899-6-20 s.n. Humboldt Bull Creek, by road Comment
  CAS-BOT-BC51220  Ceanothus parryi C. Hart Merriam 1920-8-27 s.n. Humboldt South fork Eel River (10 miles so. of Garberville) Comment
  HSC36680  Ceanothus parryi R. Sutherland 1975-5-2 7 .2575 Humboldt Near old Hwy. 101 116 Comment
  HSC37086  Ceanothus parryi R. Sutherland 1975-5-20 4 .20575 Humboldt 122 Comment
  SBBG68534  Ceanothus parryi L. Rowntree -Jul-1931 Humboldt Ettersburg Comment
  CAS-BOT-BC52045  Ceanothus prostratus Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC23267  Ceanothus pumilus D. E. Anderson, J. P. Smith 1971-7-6 - 1300 Humboldt Horse Mtn. 10 mi W of Willow Creek 1524 Comment
  UC502969  Ceanothus pumilus Joseph P. Tracy 1927-5-15 8056 Humboldt Hoopa Mountain. On road west from Hoopa Valley 914 Comment
  CAS-BOT-BC52954  Ceanothus thyrsiflorus Doris K. Kildale 1927-5-14 3289 Humboldt Big Lagoon - coast terrace Comment
  HSC98197  Ceanothus thyrsiflorus R. Sutherland 1975-7-4 2 .4775 Humboldt Along Shelter Cove Rd. 0.5 mi W of Horse Mtn. Rd. 579 Comment
  RSA600896  Ceanothus thyrsiflorus Louis C. Wheeler 1959-8-1 7618 Humboldt Queens Peak Mine. Comment
  UC1193281  Ceanothus thyrsiflorus K. Cuff 124 Humboldt 8 mi e Petrolia; Quad. 28A3 60 Comment
Read comments
Jul 25 2009
  SBBG4552  Ceanothus thyrsiflorus var. thyrsiflorus M. J. Cody 1938-7-14 Humboldt Trinidad Comment
  HSC37062  Ceanothus velutinus R. Sutherland 1975-5-30 1 .30575 Humboldt 320 Comment
  HSC43225  Ceanothus velutinus R. Sutherland 1976-3-17 6 .17376 Humboldt 747 Comment
  UCR37522  Ceanothus velutinus Mike Malamus, P. Williams, Brian Kearney 1984-5-26 42 Humboldt 5 miles NW of Bluff Creek Station on Road 13N01 930 Comment
  HSC55641  Ceanothus velutinus var. velutinus Overton, Butler 1979-7-24 9697 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC100354  Centaurea X moncktonii S. Carothers 2002-9-12 1 Humboldt ~0.75 mi. E of Weitchpec (bridge over the confluence of the Trinity and Klamath rivers) on N side of road. 610 Comment
  HSC98771  Centaurea diffusa Cara Witte 2007-8-9 634 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1584 Comment
  CDA7334  Centaurea solstitialis T. C. Fuller 1961-3-21 5856 Humboldt Freeway island, 1 mile northeast of the limits of Eureka. 0 Comment
  UC153953  Centaurium muehlenbergii Joseph P. Tracy Jul 1908 2900 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Cos.); North Coast Ranges 914 Comment
  UC1198613  Centunculus minimus J. P. Tracy 1905-5-21 2182 Humboldt immediate vicinity of Eureka 0 Comment
  HSC45236  Cephalanthera austiniae Thomas W. Nelson, Jane P. Nelson 1977-7-1 3557 Humboldt N side of ridge between Bear Creek & Blanket Creek 1463 Comment
  CAS-BOT-BC384901  Cerastium arvense Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UC1052447  Cerastium glomeratum H. E. and S. T. Parks 1944-4-1 24279 Humboldt Trinidad, Spruce Cove 60 Comment
  UC176615  Cerastium glomeratum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3581 Humboldt near Hydesville; Northern Coast Region 30 Comment
  CAS-BOT-BC135533  Cercocarpus betuloides var. betuloides L. R. Abrams; Rimo Bacigalupi 1922-6-25 8226 Humboldt 6 mi. north of Garberville Comment
  UC666857  Cercocarpus ledifolius var. ledifolius Joseph P. Tracy 1935-7-30 14362 Humboldt Salmon Summit, about 2 mi sw of the top of the mountain Salmon Summit 1767 Comment
  CAS-BOT-BC276489  Chaenactis douglasii var. douglasii Joseph P. Tracy 1933-7-25 12877 Humboldt Grouse Mountain 1524 Comment
  UC582766  Chaenactis douglasii var. douglasii Joseph P. Tracy 1935-7-30 14357 Humboldt Salmon Summit 1767 Comment
  HSC45913  Chamaecyparis lawsoniana Jerome Peterson 1978-5-1 10 Humboldt Near corner of 8th and G St. in Arcata Comment
  HSC69753  Chamaesyce maculata Thomas W. Nelson 1977-10-10 3754 Humboldt Jct. of Fairway Dr. and Lundbar Place, Eureka Comment
  CAS-BOT-BC166039  Chamerion angustifolium subsp. circumvagum Clarence R. Quick 1959-7-24 59 -30 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  HSC55206  Chamerion angustifolium subsp. circumvagum Overton 1979-8-1 12324 Humboldt Near Mill Creek, close to the town of Hoopa 1341 Comment
  HSC55088  Cheilanthes gracillima G. L. Clifton, Griswold 1979-7-31 11762 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC99676  Cheilanthes gracillima Walter Overton, Marvin Butler 1979-7-25 9894 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  SEINET4558631  Chenopodium atrovirens Joseph P. Tracy 1932-1 10500 Humboldt Local along trail 1585 Comment
  UC198570  Chenopodium pumilio Joseph P. Tracy 1916-9-5 4770 Humboldt 4 mi above mouth; Northern Coast Ranges, South Fork of Eel River 60 Comment
  CAS-BOT-BC451388  Chimaphila menziesii S. Matthews; M. Goering; R. James 1985-5-10 060 Humboldt Gray Falls Campground 240 Comment
  RSA12553  Chimaphila menziesii C. B. Wolf 1934-7-2 5886 Humboldt Snow Camp. Mountains east of Korbel. 1372 Comment
  SBBG83414  Chimaphila umbellata R. Gankin 1965-8-5 546 Humboldt Kings Mtn Rd, 2.2 mi E of rd end, Pacific Range Wilderness Area Comment
  CAS-BOT-BC236914  Chloropyron maritimum subsp. palustre Eva Buxton 2002-8-1 2001 Humboldt Salt marsh off King Salmon Ave. near P.G.E. Eureka Comment
  HSC73034  Chrysolepis chrysophylla M. A. Baker 1980-6-7 1791 Humboldt Near Brush Mtn. 1128 Comment
  HSC8057  Chrysolepis chrysophylla H. E. Parks, J. P. Tracy 1930-9-15 765 Humboldt Road to Kneeland Bald Hills Comment
  RSA46774  Chrysolepis chrysophylla Doris Kildale Gillespie 1937-8-26 15366 Humboldt Christmas Prairie. Comment
  HSC99490  Chrysolepis chrysophylla var. chrysophylla K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 149 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  CAS-BOT-BC36477  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1937-7-29 15589 Humboldt Northern Coast Ranges. South Fork Mountain, west slope near top, at Hyampom Trail 1676 Comment
  HSC55104  Chrysolepis chrysophylla var. minor G. L. Clifton 1979-7-31 11845 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC665684  Chrysolepis chrysophylla var. minor J. P. Tracy and H. E. Parks 1941-8-28 11541 Humboldt Blake Lookout area; South Fork Mountain 1706 Comment
  UC154073  Chrysosplenium glechomifolium J. P. Tracy 1905-3-5 2147 Humboldt immediate vicinity Eureka 0 Comment
  JEPS12245  Cicuta douglasii Joseph P. Tracy 1927-9-25 8379 Humboldt 2 mi s of Fields Landing (near Still Ranch) 6 Comment
  HSC30333  Cicuta douglasii Dale R. Gradek 1974-5-29 89 Humboldt SE end of Big Lagoon County Park 3 Comment
  HSC74438  Circaea alpina subsp. pacifica Gail Newton 1980-8-10 2069 Humboldt Near Blake Mtn. 1707 Comment
  HSC97984  Circaea alpina subsp. pacifica Cara Witte 2007-7-11 507 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  UC1103564  Circaea alpina subsp. pacifica Joseph P. Tracy 1906-5-6 2441 Humboldt near Hydesville (Wolverton Gulch); Northern Coast Region, Wolverton Gulch 60 Comment
  UC35383  Circaea alpina subsp. pacifica Harley P. Chandler June, 1901 1404 Humboldt North Coast Ranges, Klamath R. 365 Comment
  UCR131740  Circaea alpina subsp. pacifica C. B. Wolf 1937-8-13 09253 Humboldt North Coast Range, 11 miles east of Hoopa Valley on new road toward Trinity Summit 1584 Comment
  HSC57013  Cirsium arvense Overton, Butler 1979-7-24 57013 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  JEPS59109  Cirsium arvense W. L. Jepson 1902-8-3 2135 Humboldt Eel River, Ferndale Ferry 6 Comment
  HSC12339  Cirsium arvense Steve Dorei 1970-10-26 114 Humboldt SE corner of Old Arcata Rd. and Freshwater Rd. Comment
  SEINET200853  Cirsium breweri Joseph P. Tracy 1924-7-6 6717 Humboldt Near Ruby Creek on the Willow Creek Hwy north coast ranges Comment
  HSC104439  Clarkia amoena Greg O'Connell 2013-6-27 Humboldt Summit of Mt. Andy 1159 Comment
  UC35400  Clarkia amoena Chesnut and Drew 1888-7-9 Humboldt Campbell's Comment
  HSC16234  Clarkia amoena subsp. huntiana S. V. Thompson 1967-7-23 11 Humboldt Near Mad River Bridge Comment
  UC169900  Clarkia concinna subsp. concinna Mrs. M. H. Manning 1901-1 75 Humboldt near Hupa Comment
  RSA244979  Clarkia concinna subsp. concinna B. D. Rogers, W. J. Ferlatte 1966-6-15 2105 Humboldt Larabee Valley 762 Comment
  CAS-BOT-BC172389  Clarkia purpurea subsp. viminea Doris K. Kildale 1927-6-25 3584 Humboldt Near Ettersburg Comment
  HSC16262  Clarkia purpurea subsp. viminea Paul Shields 1955-6-12 Humboldt 6 mi. W of Myers Flat Comment
  HSC98784  Claytonia lanceolata Cara Witte 2008-6-2 663 Humboldt National Forest 1. 2 miles south of intersection with Forest Service Road 5N09. 1588 Comment
Read comments
Sep 23 2019
  HSC17709  Claytonia parviflora subsp. parviflora Elrid H. Spinas 1948-5-22 34 Humboldt Horse Mtn. Comment
  HSC17699  Claytonia perfoliata John A. Dubois 1962-5-12 6 Humboldt 20 mi. E of Arcata Comment
  HSC95727  Claytonia perfoliata subsp. perfoliata Steven Lee 2004-4-11 14 Humboldt 1 mi. N on scenic drive from Westhaven offramp on Hwy. 101, beach trail access N of Houda Pt. Comment
  HSC104454  Claytonia rubra subsp. rubra Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 6 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  UC486517  Claytonia rubra subsp. rubra H. E. Parks, J. P. Tracy 1930-5-25 876 Humboldt Laribee Valley Comment
  HSC71826  Claytonia saxosa Thomas W. Nelson, Jane P. Nelson 1980-6-27 5957 Humboldt Saddle between Mt. Lassic and peak to E 1677 Comment
  CAS-BOT-BC443891  Claytonia sibirica Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC17734  Claytonia sibirica Harvey Doerksen 1962-5-4 1 Humboldt 1/4 mi. W of Korbel on S side of Mad River Comment
  HSC99422  Claytonia sibirica K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 71 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
  OBI33239  Claytonia sibirica David J. Keil 1983-7-1 17261 Humboldt Along Bull Crk Flats Rd 1.4 mi W of US 101. Humboldt Redwoods State Park Comment
  UC162972  Claytonia sibirica Joseph P. Tracy 1908-6 2860 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  SEINET202283  Claytonia sibirica J. P. Tracy 1950-7-2 18960 Humboldt Fern Spring Happy Camp Mt. in Trinity Summit Range 6 mi NE of Hawkins Bar 1280 Comment
  CAS-BOT-BC91327  Clematis lasiantha Lincoln Constance; Reed C. Rollins 1942-5-11 2873 Humboldt North Coast Ranges. Hoopa Valley 6 miles south of Hoopa. 121 Comment
  HSC14389  Clinopodium douglasii W. D. Stevens 1967-7-9 28 Humboldt Along the rd. to Three Creeks Summit Comment
  UCD40028  Clinopodium douglasii Rodney Gale Myatt 1971-9-17 1107 Humboldt near Phillipsville, above river, about 8 miles north of Gaberville, along Hwy 101. Comment
  UC1134574  Clintonia andrewsiana A. E. Wieslander 1931-5-17 194 Humboldt Orick-Orleans Road Comment
  SEINET12047065  Clintonia andrewsiana Unknown 1972-1 s.n. Humboldt Humboldt State University Forest, W of campus with city limits of Arcata 198 Comment
  HSC102559  Clintonia uniflora M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1547 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  JEPS25064  Collinsia heterophylla Joseph P. Tracy 1948-6-13 18049 Humboldt near Harris 609 Comment
  UC1196749  Collinsia heterophylla Joseph P. Tracy 1948-6-13 18049 Humboldt near Harris 609 Comment
  BLMAR643  Collinsia linearis Jennifer Wheeler 2011-6-29 643 Humboldt Lacks Creek, Pine Ridge Road 1097 Comment
  CAS-BOT-BC412799  Collinsia linearis David D. Keck 1948-7-2 5999 Humboldt Ridge east of Redwood Creek on road to Willow Creek. On US Route 299 609 Comment
  HSC70376  Collinsia parviflora M. A. Baker 1980-6-7 1783 Humboldt Near Brush Mtn. 1128 Comment
  HSC39617  Collinsia parviflora Thomas W. Nelson, Jane P. Nelson 1976-6-15 2721 Humboldt Along old trail above Alder Springs 1585 Comment
  HSC97484  Collinsia parviflora Cara Witte 2007-5-21 57 Humboldt Board Camp Mountain. 1/2 mile south of intersection with 4N38 and National Forest 1. 1427 Comment
  JEPS6171  Collinsia rattanii Joseph P. Tracy 1925-5-30 7032 1/2 Humboldt Laribee Valley; North Coast Ranges 701 Comment
  HSC100662  Collinsia sparsiflora Carl C. Marshall Jun 1887 427 Humboldt Spruce Grove. Comment
  HSC74418  Collomia grandiflora Gail Newton 1980-8-10 2040 Humboldt Near Blake Mtn. 1707 Comment
  HSC97946  Collomia grandiflora Cara Witte 2007-6-27 368 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Near intersection with 4N32B 1516 Comment
  HSC71069  Collomia heterophylla Thomas W. Nelson, Jane P. Nelson 1977-5-30 3403 Humboldt Above Mad River at Anderson's Ford. 640 Comment
  RSA120682  Collomia heterophylla S. S. Tillett 1956-7-6 610 Humboldt S. slope along Bar Shanty Road, 5 mi. from Orleans. 488 Comment
  UC133644  Collomia heterophylla J. P. Tracy 1909-5-2 2962 Humboldt immediate vicinity Eureka 0 Comment
  HSC102537  Collomia tracyi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1523 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC97233  Collomia tracyi Bryan Atkinson, Jenny Lynn Hutchinson 2007-6-11 6 Humboldt Near Grouse Mtn., 14.1 mi. S of Hwy. 299 on FS Rd. NF1 1341 Comment
  UC672847  Comandra umbellata subsp. californica Joseph P. Tracy 1927-5-15 8038 Humboldt near the South Fork (Trinity River Valley); Trinity River Valley 182 Comment
  UC165028  Conyza canadensis J. P. Tracy 1906-8-18 2540 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC181555  Coptis laciniata Doris K. Kildale 1927-7-17 3753 Humboldt Bug Creek 792 Comment
  HSC103475  Coptis laciniata Thomas W. Nelson, Jane Nelson 1987-6-11 8523 Humboldt Along Forest Service Rd. 13N01 at Blue Lake, 6.7 mi. from junction with State Route 96. 671 Comment
  JEPS64327  Corallorhiza maculata Virginia P. Fox July, 1919 Humboldt Bald Mountain Comment
  HSC27560  Corallorhiza maculata J. D. Ackerman, A. Montalvo 1973-6-30 88 Humboldt Big Lagoon County Park, 8 mi. N of Trinidad Comment
  HSC16583  Corallorhiza mertensiana Doris K. Kildale 1926-5-2 1846 Humboldt Bald Mtn. road, between Bald Mtn. House and junction of Redwood Creek Road. Comment
  HSC98347  Corallorhiza striata T. Jimerson, J. Pageau 1979-6-12 527 Humboldt Near Hopkins Butte, close to the town of Orleans. 1036 Comment
  HSC37701  Corallorhiza striata A. Montalvo, J. D. Ackerman 1976-5-16 756 Humboldt 0.25 mi. E of State Hwy. 299 on Chezem Rd., W of Redwood Creek Valley Comment
  HSC76251  Cordylanthus tenuis subsp. viscidus Denis Kearns 1981-7-6 64 Humboldt Near Mosquito Lake 1256 Comment
  CAS-BOT-BC101139  Corethrogyne filaginifolia J. Burtt Davy 1899-6-30 6185 Humboldt near Ferndale, n. Coast Ranges Comment
  UC204865  Corethrogyne filaginifolia J. P. Tracy 1918-7-5 5025 Humboldt Mc Kee's Field; White Thorn Valley 304 Comment
  UC581783  Corethrogyne filaginifolia Joseph P. Tracy 1936-7-10 15046 Humboldt vicinity of Carlotta 30 Comment
  CAS-BOT-BC212017  Cornus nuttallii Doris K. Kildale 1925-4-1 s.n. Humboldt Hungry Hollow near Korbell Comment
  HSC100454  Cornus pubescens Carl C. Marshall Jun 1886 322 Humboldt Mad River. Comment
  CAS-BOT-BC212174  Cornus sericea Doris K. Kildale 1927-6-4 4164 Humboldt Scotia Bluffs 30 Comment
  HSC76355  Cornus sericea subsp. sericea Denis Kearns 1981-7-23 418 Humboldt Near Whiteys Peak. 1524 Comment
  UC535724  Corylus californica Eleanor Armstrong 1934-8-23 1137 Humboldt Richardson Grove, E slope 121 Comment
  HSC70453  Corylus cornuta subsp. californica Gail Newton 1980-7-20 1642 Humboldt Near Bell Swamps 1426 Comment
  LA204121  Corylus cornuta subsp. californica Carl Epling; William Robison 1935-7-25 sn Humboldt Devoy Grove of Redwoods Comment
  CHSC32813  Cotula coronopifolia Lora L. Anderson 1981-4-26 20 Humboldt Ca. 500 yds e of ocean (Moonstone Beach) 0.5 mi w of hwy 101, 11.5 mi nw of Arcata. 0 Comment
  HSC39804  Cotula coronopifolia Peter Sorensen 1976-8-6 Humboldt King Salmon Comment
  UC1192141  Cotula coronopifolia Malcolm A. Nobs, S. Galen Smith 1949-8-3 1163 Humboldt 1 mi s of Fields Landing; Eel River Valley Comment
  CAS-BOT-BC291342  Cotula coronopifolia Elmer I. Applegate 1923-9-13 4009 Humboldt 5 miles south of Eureka Comment
  SEINET200990  Crataegus douglasii J. P. Tracy 1931-4-26 9335 Humboldt Trinity River Valley at Willow Creek 152 Comment
  POM220924  Crepis capillaris D. D. Keck, J. Clausen 1935-6-16 3397 Humboldt Orick Comment
  SD148248  Crepis capillaris G. K. Helmkamp, E. A. Helmkamp 2001-7-8 6998 Humboldt North coastan strand; north spit of Samoa Peninsula, 0.5 mile north of California Highway 255 bridge over Humboldt Bay. 6 Comment
  SDSU3878  Crepis capillaris D. F. Howe 1961-7-31 3098 Humboldt 37.7 miles south of Eureka on #101. Comment
  POM356344  Crepis setosa H. M. Pollard 1947-8-21 s.n. Humboldt roadside between Orleans and Boyse Creek Comment
  RSA43685  Crepis setosa H. M. Pollard 1947-8-21 s.n. Humboldt roadside between Orleans and Boyse Creek Comment
  JEPS22553  Crocidium multicaule Joseph P. Tracy 1933-5-21 12212 Humboldt McClellan Mountain 822 Comment
  POM126498  Cryptantha leiocarpa Joseph P. Tracy 1906-5-13 2457 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay. Comment
Read comments
Jan 23 2011
  UC673225  Cryptantha milobakeri Lincoln Constance and Reed C. Rollins 1942-5-11 2878 Humboldt 5 mi s Hoopa; North Coast Ranges, Hoopa Valley 121 Comment
  UC71489  Cryptogramma acrostichoides Joseph Burtt Davy and W. C. Blasdale 1899-6-21 5844 Humboldt Trinity Summit Comment
  SEINET10569434  Cupressus Mary Susan Taylor 1990-8-22 Taylor 6086 Humboldt Cypress Grove Area, Samoa Peninsula, along strand, Eureka. Comment
  UC1197870  Cuscuta subinclusa Joseph P. Tracy 1927-7-17 8287 Humboldt near Bug Creek (Ahlgren's, on Mad River); Mad River 457 Comment
  UC922013  Cynodon dactylon Joseph P. Tracy 1949-8-18 16427 Humboldt Eureka 15 Comment
  UCD60075  Cynodon dactylon Joseph P. Tracy 1948-8-22 18108 Humboldt Vicinity of Carlotta. 30 Comment
  UC1222261  Cynoglossum grande Joseph P. Tracy 1950-5-7 18647 Humboldt ca. 5 mi. n. Bridgeville (on rd. to S. Yager Valley) Comment
  UC1239626  Cynoglossum grande Joseph P. Tracy 1923-3-17 6166 Humboldt vicinity of Garberville; Northern Coast Ranges 121 Comment
  UC1145094  Cynosurus echinatus Joseph P. Tracy 1950-6-23 18865 Humboldt 3 mi ne Alderpoint (Dobbyn Creek); Dobbyn Creek 213 Comment
  SEINET200971  Cyperus erythrorhizos Joseph P. Tracy 1920-8-15 5364 Humboldt Klamath River at mouth of Bluff Creek. 152 Comment
  UC1103641  Cyperus strigosus Joseph P. Tracy 1931-9-7 9655 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  HSC97971  Cypripedium californicum Cara Witte 2007-6-21 316 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near mine area. 1283 Comment
  HSC97625  Cystopteris fragilis Cara Witte 2007-5-31 161 Humboldt Buck Flat. Intersection of National Forest 1 and 5N01. 1547 Comment
  POM66966  Cytisus monspessulanus Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC14667  Cytisus scoparius F. B. Plett 1963-4-24 32 Humboldt 1.5 mi. N of Trinidad along Old Hwy. 101 Comment
  RSA54136  Dactylis glomerata Henry M. Pollard 1946-8-25 s.n Humboldt Wilson Creek. Orleans region Comment
  SEINET4565919  Dactylis glomerata J. B. Davy 1899-6-16 5557 Humboldt Scotia Comment
  CAS-BOT-BC189735  Danthonia californica Alice Eastwood; John Thomas Howell 1937-6-22 4734 Humboldt Near Alder Point. Comment
  HSC97571  Danthonia californica Cara Witte 2007-6-7 230 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  UC37946  Danthonia californica Harley P. Chandler May, 1901 1239 Humboldt North Coast Ranges; Redwood Belt 91 Comment
  UCD60964  Danthonia californica Joseph P. Tracy 1951-6-26 19571 a Humboldt Snow Camp and Twin Lakes vicinity. Comment
  UC1103260  Danthonia californica var. americana Joseph P. Tracy 1949-8-11 18475 Humboldt 2-6 mi s Grouse Mt.; Kinsey Ridge 1280 Comment
  UCD60503  Danthonia californica var. americana R. Tofsrud 1947-6-27 s.n. Humboldt About halfway between Yager and Kneeland on county road. Comment
  UCD60512  Danthonia californica var. americana A. H. Murphy 1947-6-9 s.n. Humboldt Parrott's Ranch, Table Bluff, ca. 1.5 miles north of Loleta. Comment
  SEINET5744809 Image available Daucus carota Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6111 Humboldt Collected in a waste area along Giuntoli Lane in Arcata. Adjacent to Eureka Sand and Gravel company and across the road from T.P. Tire Service (1265 Giuntoli Lane).; Arcata Comment
  HSC38897  Daucus pusillus J. P. Smith 1973-5-26 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC48788  Delphinium decorum subsp. tracyi Brad Klipfel 1975-6-17 316 Humboldt Along Titlow Hill Rd. Comment
  HSC100901  Delphinium menziesii Carl C. Marshall Apr 1887 380 Humboldt Hoopa Valley. Comment
  CAS-BOT-BC10137  Delphinium menziesii Mrs. H. C. Cantelow 1941-4-19 s.n. Humboldt 2.5 mi. NE of Cape Town on road to Ferndale Comment
  HSC74627  Delphinium nudicaule M. A. Baker 1980-5-17 1251 Humboldt Near Le Perron Peak 1066 Comment
  HSC98907  Delphinium nudicaule Cara Witte 2007-5-23 106 Humboldt Near Grouse Mtn. Along 4N32. Approximately 0.5 mi. S of intersection with 5N04 and 4N32E. 1398 Comment
  CAS-BOT-BC9956  Delphinium nudicaule Joseph Prince Tracy 1927-5-30 8084 Humboldt Near Briceland 243 Comment
  HSC25013  Delphinium nudicaule R. A. Rasp 1964-4-5 28 Humboldt 5 mi. N of Hoopa on Willow Creek Rd. Comment
  HSC89622  Delphinium nudicaule Pat Daly, Rudy Galindo 1988-3-12 5 Humboldt S Fork Trail of Trinity River, trailhead 12.4 mi. up S Fork Rd. from Hwy. 299 457 Comment
  HSC98172  Delphinium nudicaule Allan R. Marshall 1962-5-11 9 Humboldt 50 yds. in front of N side of Hwy. 299 610 Comment
  CAS-BOT-BC121961  Delphinium trolliifolium Doris K. Kildale 1927-7-10 3738 Humboldt Gans Prairie on Bal Hills Road Comment
  CAS-BOT-BC194298  Deschampsia cespitosa subsp. cespitosa David D. Keck 1938-8-5 4773 Humboldt Big Lagoon Comment
  HSC27104  Deschampsia cespitosa subsp. holciformis L. M. Malloy 1965-5-19 38 Humboldt Arcata, southside of Samoa Rd., opposite of KATA radio station, adjacent to the railroad tracks, bank of a drainage ditch. Comment
  RSA10094  Deschampsia danthonioides Joseph P. Tracy 1932-7-14 10538 Humboldt Klamath Mountains, Trinity Summit; At Corral Prairie 1524 Comment
  UC183580  Deschampsia danthonioides Joseph P. Tracy 1912-7-25 3832 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UCD62501  Deschampsia danthonioides A. H. Murphy 1951-5-21 47 Humboldt Prior Ranch, 2 miles S of Blocksburg. Comment
  BLMAR267  Deschampsia elongata Jennifer Anthony-Wheeler 1999-6-16 267 Humboldt Headwaters Forest Reserve, growing near beginning of wildlife rd 524 Comment
  UC1103213  Deschampsia elongata J. P. Tracy 1900-8-5 920 Humboldt immediate vicinity of Eureka 0 Comment
  UC1541537  Deschampsia elongata Harold E. Parks September 1928 172 Humboldt Big Lagoon Comment
  UC526672  Deschampsia elongata Joseph P. Tracy 1932-7-17 10680 Humboldt ridges e. of Corral Prairie; Klamath Mts., Trinity Summit 1828 Comment
  HSC8603  Deschampsia elongata D. W. C. 1956-5-29 13 Humboldt Mattole- Rio Del -Atwell Creek Comment
  UC1362291  Dicentra formosa Kingsley R. Stern 1964-6-13 2107 Humboldt ca 2 mi s Miranda (on e side of U.S. Highway 101, ca 50 yds n of Fish Creek) Comment
  UCD170583  Dicentra formosa Gordon Leppig 1998-3-27 730 Humboldt Quarry Rd. off Jacoby Creek. Under Jacoby Creek Bridge. 97 Comment
  CAS-BOT-BC402409  Dicentra formosa subsp. formosa Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  POM87661  Dicentra formosa subsp. formosa L. R. Abrams, R. Bacigalupi 1922-6-25 8284 Humboldt Big Lagoon, back of Orick Comment
  RSA168936  Dicentra formosa subsp. formosa Joseph P. Tracy 1950-6-8 18720 Humboldt Near Mountain Glen, 7 miles south of Ferndale, Bear River Ridge 610 Comment
  UC1198178  Dichelostemma X venustum Joseph P. Tracy 1947-5-10 17683 Humboldt Miranda, along the South Fork of Eel River South Fork of Eel River 121 Comment
  CAS-BOT-BC483665  Dichelostemma capitatum Doris K. Kildale 1927-4-17 3097 Humboldt Breeland Bridge 1/2 mile west of Garberville 114 Comment
  HSC43845  Dichelostemma ida-maia Maralyn O'Meara 1974-7-17 554 Humboldt Kneeland Comment
  HSC44728  Dichelostemma ida-maia Maralyn O'Meara 1972-6-8 79 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  JEPS5675  Dichelostemma ida-maia Lincoln Constance 1934-5-23 604 Humboldt above Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  RSA46864  Dichelostemma ida-maia Doris K. Kildale 1927-7-10 3735 Humboldt Gans Prairie, Bald Hills. Comment
  UC1198174  Dichelostemma multiflorum Joseph P. Tracy 1939-4-29 16240 Humboldt mouth of Slate Creek Klamath River 121 Comment
  UC562292  Dichondra donelliana Joseph P. Tracy 1932-3-20 9785 Humboldt Trinidad; slopes facing ocean 3 Comment
  UC535744  Digitalis purpurea Eleanor Armstrong 1174 Humboldt Richardson Grove Comment
  HSC69691  Digitalis purpurea R. Kalal 1980-5-18 24 Humboldt Hwy. 101, 0.5 mi. W of Orick 6 Comment
  SEINET4095000  Digitalis purpurea O. M. Clark 1932-1 5315 Humboldt South Eureka. Comment
  SEINET8221173  Diplacus aurantiacus L. R. Abrams 1916-7-18 6072 Humboldt Fortuna. Comment
  CAS-BOT-BC153241  Diplacus kelloggii Doris K. Kildale 1928-5-19 5179 Humboldt Chalk Mountain Comment
  CAS-BOT-BC153324  Diplacus layneae Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  UC249509  Dipsacus sativus Joseph P. Tracy 1922-8-16 6105 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  CAS-BOT-BC208661  Distichlis spicata Joseph P. Tracy 1933-8-22 12989 Humboldt Mouth of Eel River 3 Comment
  CHSC56629  Distichlis spicata L. P. Janeway 1983-9-24 703 Humboldt 10-30 ft from water line of Big Lagoon, at south corner of county campground. 3 Comment
  UC595125  Distichlis spicata David D. Keck 1938-8-5 4769 Humboldt Big Lagoon Comment
  UC1222563  Dodecatheon hendersonii Joseph P. Tracy 1950-5-7 18644 Humboldt on the road to South Yager Valley about 5 mi n Bridgeville; n of Bridgeville 198 Comment
  UC1198621  Dodecatheon hendersonii Joseph P. Tracy 1932-4-23 9828 Humboldt Miranda Northern Coast Ranges, South Fork of the Eel River (South Fork Eel River) 121 Comment
  SEINET201054 Image available Dodecatheon jeffreyi Joseph P. Tracy 1927-8-22 8340 Humboldt Bald Mountain, near High Prarie. 1067 Comment
  UC562745  Dodecatheon jeffreyi Joseph P. Tracy 1932-7-17 10669 Humboldt ridges e Corral Prairie (Trinity Summit); , ridges e of Corral Prairie 1828 Comment
  SEINET201053 Image available Dodecatheon jeffreyi Joseph P. Tracy 1932-7-17 10669 Humboldt Trinity Summit; ridges East of Corral Prarie. 1829 Comment
  UC179965  Dodecatheon jeffreyi Joseph P. Tracy 1914-7-4 4535 Humboldt High Prairie on Bald Mountain Northern Coast Ranges, High Prairie on Bald Mountain 1066 Comment
  UC249685  Draba verna Joseph P. Tracy 1922-4-2 5986 Humboldt near Carlotta (Van Duzen River); Northern Coast Ranges, Van Duzen River bar 30 Comment
  POM366609  Drymocallis glandulosa var. wrangelliana M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles N of Garberville Comment
  UC1198682  Drymocallis lactea var. austiniae Joseph P. Tracy 1913-6-17 4192 Humboldt near summit (Buck Mountain); Northern Coast Ranges, Buck Mountain 1524 Comment
  JEPS70196  Dryopteris arguta Robert J. Rodin 1969-8-16 8368 Humboldt near Carlotta (near Van Duzen River) Comment
  UC1239776  Dryopteris arguta Joseph P. Tracy 1931-1-24 9280 Humboldt Alton; Northern Coast Region 30 Comment
  UC62809  Dryopteris expansa Marshall A. Howe 1896-5-30 Humboldt Eureka Comment
  POM208982  Dryopteris expansa Lincoln Constance 1934-6-3 811 Humboldt Border of Horse Praire, adjecent to Bull Cr watershed on S side 396 Comment
  SJSU8158  Dryopteris expansa D. G. Walford 1969-8-14 72 Humboldt near McKinleyville c. 5 mi N of Arcata Comment
  JEPS19987  Dulichium arundinaceum Joseph P. Tracy 1938-9-25 16173 Humboldt Bald Mountain at Lake Prairie Bald Mountain; , Lake Prairie 1066 Comment
  UC668028  Dulichium arundinaceum Joseph P. Tracy 1938-9-25 16173 Humboldt Bald Mountain, at Lake Prairie Lake Prairie; Bald Mountain, Lake Prairie 1066 Comment
  HSC65126  Dysphania ambrosioides J. P. Smith 1971-10-6 4983 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC25284  Echinochloa crus-galli Thomas W. Nelson 1972-11-25 701 Humboldt Eureka, Harris and B St. Comment
  UCD60951  Echinochloa crus-pavonis Collector unknown 1926-7-1 Humboldt Annie Wilson Ranch, Alderpoint. Comment
  NY242008  Elatine rubella A. Tiehm 1987-8-3 11474 Humboldt Pine Forest Range, Onion Creek Reservoir northwest of Blue Lake and Duffer Peak at the north end of the range. 2151.9 Comment
Read comments
Feb 25 2012
  RSA152345  Eleocharis acicularis var. acicularis Joseph P. Tracy 1934-7-13 13393 Humboldt Dow s Prairie. 61 Comment
  HSC90658  Eleocharis macrostachya Gail Newton 1982-6-10 3640 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC7341  Eleocharis obtusa J. P. Tracy 1927-8-7 8319 Humboldt Lack Pond in Trinity River Valley opposite mouth of Willow Creek 152 Comment
  JEPS19323  Eleocharis pachycarpa Joseph P. Tracy 1926-7-25 7757 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  HSC25069  Eleocharis pachycarpa Rudolf W. Becking 1972-7-9 Humboldt Gold Bluff Beach, Prairie Creek State Park Comment
  HSC7343  Eleocharis pachycarpa D. E. Anderson 1961-9-9 1785 Humboldt Along Hwy. 101 Comment
  HSC96491  Eleocharis pachycarpa Gordon Leppig 1998-7-19 979 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  HSC77865  Eleocharis parvula L. J. Heflin 1984-5-13 5 Humboldt Hauser Marsh Comment
  UC1103662  Eleocharis parvula Joseph P. Tracy 1921-8-7 5868 Humboldt Stone Lagoon 3 Comment
  HSC9695  Elymus condensatus J. Wendell Howe 1253 Humboldt Little River Beach Comment
  CAS-BOT-BC227347  Elymus elymoides Joseph P. Tracy 1930-7-16 8955 Humboldt South Fork Mountain; along summit near Blake Lookout 1706 Comment
  HSC58630  Elymus elymoides var. elymoides Overton, Butler 1979-7-31 11484 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC58677  Elymus elymoides var. elymoides Gilbert Muth 1979-8-1 12187 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  HSC1804  Elymus glaucus William J. Ferlatte, B. D. Rogers 1966-6-15 2107 Humboldt Larabee Valley 762 Comment
  RSA129277  Elymus glaucus Joseph P. Tracy 1935-7-21 14119 Humboldt mouth of Bremer Creek; Trinity River Valley, at Willow Creek 152 Comment
  SEINET200979  Elymus glaucus subsp. glaucus J. P. Tracy 1936-6-9 14889 Humboldt Bear River Lodge 457 Comment
  RSA86744  Elymus glaucus subsp. virescens Joseph P. Tracy 1927-6-26 8213 Humboldt Stone Lagoon 6 Comment
  HSC72676  Elymus multisetus J. P. Smith 1977-7-3 9256 Humboldt Six Rivers National Forest. FS Rd. 13N01, 3 mi. from its junction with Hwy. 36 549 Comment
  RSA10129  Elymus trachycaulus subsp. trachycaulus Joseph P. Tracy 1926-7-5 7736 Humboldt Valley of South Yager Creek. 762 Comment
  UC526802  Elytrigia repens Joseph P. Tracy 1925-9-13 7267 Humboldt Eel River North Coast Ranges (mouth, on river bank) 6 Comment
  UC1541559  Epilobium H. E. and S. T. Parks July 1937 24050 Humboldt Spruce Cove Trinidad 64 Comment
  HSC34784  Epilobium canum subsp. canum R. E. Cooksey Sep 1972 58 Humboldt On Ave. of Giants 30 Comment
  HSC54025  Epilobium ciliatum Griswold, Butler 1979-7-12 7194 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC146135  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1909-7-31 3053 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC43235  Epilobium ciliatum subsp. ciliatum R. Sutherland 1976-8-19 3 .19876 Humboldt 259 Comment
  POM249603  Epilobium ciliatum subsp. ciliatum C. L. Hitchcock, J. P. Martin 1939-7-14 5441 Humboldt 7 miles east of Shelter Cove Comment
  UC562508  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1935-8-25 14228 Humboldt Corral Prairie Trinity Summit (in meadow) 1584 Comment
  HSC12701  Epilobium ciliatum subsp. watsonii Jana Kattenhorn 1970-10-28 155 Humboldt Mad River at the mouth of Lindsey Creek, N Bank Rd. off Hwy. 299 Comment
  HSC49656  Epilobium ciliatum subsp. watsonii J. P. Smith 1971-10-6 4952 Humboldt At the end of Murray Rd., McKinleyville Comment
  HSC90695  Epilobium ciliatum subsp. watsonii Gail Newton 1983-6-5 3556 Humboldt Elk River Wildlife Area, Eureka Comment
  UC668239  Epilobium densiflorum Joseph P. Tracy 1937-7-19 15463 Humboldt Larrabee Valley 731 Comment
  HSC99090  Epilobium densiflorum Cara Witte 2008-7-10 860 Humboldt National Forest Road 4N06. 1 mile west of National Forest 1. 1234 Comment
  JEPS38204  Epilobium densiflorum Joseph P. Tracy 1917-9-3 4852 Humboldt Jones Ranch Northern Coast Ranges, Grouse Mt. (lower w slopes) 914 Comment
  BLMAR178  Epilobium minutum Donald Hazlett 1994-6-7 178 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC1198480  Epilobium minutum Joseph P. Tracy 1927-6-12 8164 Humboldt Horse Mountain Northern Coast Ranges (lower slopes) 1066 Comment
  HSC44405  Epilobium minutum R. York 1978-5-6 157 Humboldt Along Bluff Creek Rd., 4 mi. from Jct. with Hwy. 96 610 Comment
  UC1196956  Epilobium septentrionale Joseph P. Tracy 1936-6-9 14901 Humboldt Mattole R. 3 mi. e. Petrolia; North Coast Region, Mattole R. 15 Comment
  BLMAR297  Epipactis gigantea Jennifer Anthony-Wheeler 2002-7-23 297 Humboldt Headwaters Forest Reserve, growing in a pond with large floating rafts of logs 426 Comment
  HSC60046  Equisetum arvense M. A. Baker 1978-5-6 508 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  HSC100382  Equisetum arvense Carl C. Marshall May 1886 199 Humboldt Fields. Comment
  HSC98608  Equisetum arvense Cara Witte 2008-6-15 737 Humboldt National Forest 1. 1.5 miles north of intersection with Forest Service Road 6N01B. 1487 Comment
  RSA23654  Equisetum telmateia var. braunii C. B. Wolf 1939-7-6 9515 Humboldt Along Larabee Creek, 5.8 mi below Blocksburg on road to Bridgeville. Comment
  CAS-BOT-BC291175  Erechtites glomeratus Alice Eastwood 1923-8-14 12319 Humboldt Samoa Comment
  POM126125  Ericameria arborescens subsp. arborescens Joseph P. Tracy 1924-8-24 6827 Humboldt Trinity River Valley, near Willow Creek 183 Comment
  RSA47111  Ericameria greenei Doris K. Kildale 1925-8-17 1212 Humboldt Trinity Summit 1829 Comment
  RSA168814  Erigeron decumbens var. robustior Joseph P. Tracy 1942-7-4 17371 Humboldt McClellan Mountain at 'Camp Desparation' near the old Sweany place, 2 miles west of McClellan House 610 Comment
  CAS-BOT-BC300674  Erigeron foliosus var. mendocinus Alice Eastwood; John Thomas Howell 1937-6-22 4731 Humboldt Near Alder Point Comment
  UC165066  Erigeron foliosus var. mendocinus Joseph P. Tracy 1901-8-2 1241 Humboldt near Hydesville (bluffs along Van Duzen River); Northern Coast Ranges, Van Duzen River 60 Comment
  UC175187  Erigeron foliosus var. mendocinus Joseph P. Tracy 1913-6-10 4082 Humboldt near Grizzly Gulch (bluffs along Van Duzen River); Northern Coast Ranges, Van Duzen River 152 Comment
  HSC91917  Erigeron glaucus E. Mackey 1986-12-18 Humboldt Patrick's Point State Park, Palmer's Point Trail to beach Comment
  UC1557909  Erigeron glaucus J. Semple and S. Heard 1986-8-17 8501 Humboldt off US 101 just s Little River State Beach; Clam Beach County Park Comment
  UC726579  Erigeron glaucus A. A. Heller 1937-6-12 15915 Humboldt on the coast near the Whaling Station (Trinidad, foot of the grade leading up to the lighthouse on Trinidad Head.); Trinidad Head., Trinidad Comment
  HSC57134  Erigeron inornatus var. inornatus Overton, Butler 1979-7-25 9911 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  HSC97707  Erigeron maniopotamicus Thomas W. Nelson, James Nelson 1980-6-10 5395 Humboldt Jack Rabbit Valley, along Swayback Ridge 4-wheel drive road, 1 mi. S of junction with Forest Service road 1494 Comment
  UCSB15446  Erigeron philadelphicus Breedlove, Dennis 1961-7-3 Humboldt Along Eel River, 7.4 miles north of Phillipsville 243 Comment
  UC562607  Eriodictyon californicum Joseph P. Tracy 1923-6-19 6299 Humboldt e Kings Peak (Wilder Ridge); e of Kings Peak, Wilder Ridge 762 Comment
  CAS-BOT-BC259157  Eriogonum latifolium Ira L. Wiggins 1930-7-11 4680 Humboldt Near Samoa Comment
  CDA22610  Eriogonum latifolium T. C. Fuller 1961-9-28 7050 Humboldt Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  SBBG64031  Eriogonum latifolium H. E. Parks -Aug-1941 24198 Humboldt Little River Comment
  HSC26917  Eriogonum latifolium Brad Klipfel 1973-7-30 220 Humboldt Samoa Rd. near Mad River Slough Comment
  UC55505  Eriogonum luteolum var. luteolum P. E. Goddard 1901-7-12 82 Humboldt Hupa Comment
  HSC98381  Eriogonum luteolum var. luteolum R. Sutherland 1976-8-24 6 .24876 Humboldt 543 Comment
  HSC47964  Eriogonum nudum var. nudum Brad Klipfel 1974-8-2 519 Humboldt Horse Mtn. Comment
  UC1198141  Eriogonum nudum var. nudum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9040 Humboldt near Blake lookout (along summit of South Fork Mountain); South Fork Mountain 1737 Comment
  UC54762  Eriogonum nudum var. nudum P. E. Goddard 1901-7-12 84 Humboldt Hupa Comment
  HSC49980  Eriogonum nudum var. nudum M. A. Baker 1979-6-7 780 Humboldt N bank of road to Snow Mtn. 610 Comment
  NY323556  Eriogonum speciosum V. K. Chesnut 1888-7-23 s.n. Humboldt Hy-Am-Pum Valley; South Fork of Trinity River Comment
  HSC99560  Eriogonum umbellatum var. argus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 225 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1433 Comment
  JEPS56193  Eriogonum umbellatum var. argus W. L. Jepson 1902-7-25 2119 Humboldt Trinity Summit Comment
  HSC36636  Eriophyllum lanatum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1906 Humboldt End of road to Pine Mtn. Comment
  UC1173658  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1939-4-29 16241 Humboldt at mouth of Slate Creek (along Klamath River); Klamath River, Slate Creek 121 Comment
  UC165849  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1911-7-6 3366 Humboldt w side of river near Willow Creek; North Coast Ranges, Trinity River 304 Comment
  UC668204  Eriophyllum staechadifolium Joseph P. Tracy 1938-6-17 15958 Humboldt s of point of Cape Cape Mendocino 3 Comment
  HSC5599  Eriophyllum staechadifolium D. E. Anderson 1961-8-25 1753 Humboldt 1.5 mi. S of Trinidad Comment
  HSC47494  Erodium cicutarium Sheila Logan 1978-4-9 18 Humboldt Fieldbrook, 0.5 mi. E of McKinleyville on Murray Rd. 122 Comment
  HSC97471  Erodium cicutarium C. Witte 2007-5-10 20 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1368 Comment
  UC17110  Erodium moschatum J. P. Tracy 1899-4-16 150 Humboldt Eureka Comment
  BLMAR744  Erysimum concinnum Jennifer Wheeler 2015-5-18 744 Humboldt King range, East side of Lost Coast trail approx. 3/4mile from mattole trailhead 30 Comment
  JEPS53543  Erysimum menziesii Joseph P. Tracy 1906-5-13 2452 Humboldt sand dunes of ocean beach Northern Coast Region, Humboldt Bay Comment
  CHSC42783  Erythronium californicum R. N. Raynor 1935-4-8 Humboldt Fort Seward. Comment
  UC1197644  Erythronium californicum Joseph P. Tracy 1913-6-17 4184 Humboldt near summit; Northern Coast Ranges, Buck Mountain 1676 Comment
  UC1197648  Erythronium californicum Joseph P. Tracy 1927-6-12 8127 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  CAS-BOT-BC504306  Erythronium californicum Doris K. Kildale 1926-3-21 s.n. Humboldt Kneeland Prairie 762 Comment
  HSC65180  Erythronium californicum T. Jimerson, J. Pageau 1979-4-18 423 Humboldt Rd. 6N21 100 yds. S of its junction with Hwy. 299, E side of rd. Comment
  UC1197647  Erythronium californicum Joseph P. Tracy 1941-4-8 16848 Humboldt serpentine formation along Trinity Hwy Willow Creek Canyon 609 Comment
  HSC15487  Erythronium citrinum var. citrinum R. A. Rasp 1964-4-5 29 Humboldt 7 mi. past Hoopa on Willow Creek Rd. Comment
  CAS-BOT-BC502808  Erythronium oregonum Lena E. Bowley 1941-4-1 s.n. Humboldt unspecified Comment
  HSC104354  Erythronium revolutum James Regan, Humboldt Redwood Co., LLC 2007-4-30 16 Humboldt Larabee Creek area, east of Redcrest 805 Comment
  CAS-BOT-BC403035  Eschscholzia californica Doris K. Kildale 1927-6-25 3548 Humboldt Shelter Cove Comment
  HSC58769  Eucephalus ledophyllus Terry Griswold 1979-7-26 10299 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  JEPS20485  Euchiton gymnocephalus Joseph P. Tracy 1935-7-20 14110 Humboldt near Blue Lake (on Trinity Highway); North Coast Ranges, Trinity Highway 274 Comment
  RSA42022  Euchiton sphaericus H. C. Cantelow 1936-8-29 1567 Humboldt 1 mile off Riv. [High.?] S. Fork Eel River Bridge, 17 miles N of Garberville Comment
  CAS-BOT-BC206802  Euonymus occidentalis Doris K. Kildale 1926-7-22 2417 Humboldt Metropolitan, woods near Canyon Park Comment
  HSC100482  Euphorbia lathyris Carl C. Marshall Jun 1885 114 Humboldt Near Arcata fields, etc. Comment
  UC1198982  Euphorbia spathulata Joseph P. Tracy 1947-5-10 17678 Humboldt near Briceland 457 Comment
  CAS-BOT-BC458291  Euthamia occidentalis Carl D. Duncan 1920-9-22 s.n. Humboldt Bank of Trinity River, Hoopa Valley Comment
  HSC12592  Fallopia japonica C. Kline 1970-11-15 70 Humboldt Downtown Arcata, empty lot Comment
  UC1103728  Festuca idahoensis Joseph P. Tracy 1921-5-30 5485 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  CAS-BOT-BC278969  Festuca rubra W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  HSC37914  Festuca rubra Peter Sorensen 1976-7-14 Humboldt Humboldt Bay, Woodley Island Comment
  HSC37920  Festuca rubra Peter Sorensen 1976-7-14 Humboldt Woodley Island Comment
  POM313227  Festuca rubra Malcolm A. Nobs, S. Galen Smith 1949-8-3 1171 Humboldt Around Field's Landing. Comment
  RSA10075  Festuca rubra Joseph P. Tracy 1927-7-4 8238 Humboldt Lone-Star Creek (in the Dagna district). 610 Comment
  UC1103710  Festuca rubra Harold E. Parks and Joseph P. Tracy 1935-6-16 11272 Humboldt lower nw slopes Buck Mountain 792 Comment
  UC38554  Festuca rubra Schmidt Humboldt Humboldt Bay Comment
  UC525639  Festuca rubra Joseph P. Tracy 1927-7-4 8238 Humboldt Lone Star Creek North Coast Ranges, Iaqua District 609 Comment
  UC1145204  Festuca subulata Joseph P. Tracy 1936-6-9 14903 Humboldt 4 mi se Petrolia; Northern Coast Ranges, Mattole Valley 60 Comment
  POM206179  Festuca subuliflora H. P. Chandler 1901-1 s.n. Humboldt Humboldt Bay. Comment
  UC1197363  Foeniculum vulgare Joseph P. Tracy 1930-10-12 9216 Humboldt Eel R. Alton to Fortuna; Eel R. 15 Comment
  CHSC32839  Fragaria chiloensis Lora Anderson 1981-4-26 7 Humboldt Ca. 5 m n on Clam Beach Rd. 0.5 km e of Hwy. 101. 9.5 mi n of Arcata, along roadsides. 0 Comment
  HSC95822  Fragaria chiloensis Steven Lee 2004-3-23 5 Humboldt Manila Dunes, Vera Ln. Dune Community Comment
  HSC38191  Fragaria chiloensis Peter Sorensen 1976-5-28 Humboldt N Spit of Humboldt Bay, S of Samoa Comment
  HSC70777  Fragaria vesca R. York 1980-5-17 550 Humboldt Near Le Perron Peak 1066 Comment
  HSC89552  Fragaria vesca M. Roantree 1985-4-25 12 Humboldt E side of Trinidad Head Comment
  UC183615  Fragaria vesca Joseph P. Tracy 1912-5-11 3585 Humboldt near Hydesville; Northern Coast Region 30 Comment
  HSC45402  Fragaria vesca Thomas W. Nelson, Jane P. Nelson 1977-6-19 3510 Humboldt Alder Springs 1524 Comment
  CAS-BOT-BC437050  Fragaria vesca subsp. bracteata M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale 8 miles norht of Garberville Comment
  CAS-BOT-BC457927  Fragaria vesca subsp. californica Doris Kildale Gillespie 1931-6-7 10643 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  CAS-BOT-BC52745  Frangula californica subsp. californica Alice Eastwood 1943-6-11 18975 Humboldt State Azalea Grove Comment
  HSC18410  Frangula purshiana Francis Winter 1960-5-6 Humboldt Across from Azalea State Park Entrance Comment
  HSC31511  Frangula purshiana Steve Selva, Roger Jensen 1974-8-21 29 Humboldt Redwood Forest across from Hwy. 101 entrance to Patrick's Point State Park Comment
  UCD112825  Frangula purshiana Roman Gankin 1965-8-6 549 Humboldt on Matolle Road, 7.4 miles northeast of Capetown. Comment
  CAS-BOT-BC217693  Fraxinus latifolia M. S. Jussel 1931-5-1 s.n. Humboldt Sylvandale, 8 mi. N of Garberville Comment
  HSC16198  Fraxinus latifolia C. B. Wolf 1927-8-30 1246 Humboldt 3 mi. S of Thorn along old coast road Comment
  HSC89632  Fraxinus latifolia Anthony J. Desch, Bryon Cariss 1988-4-23 65 Humboldt 3.7 mi. N of Hwy. 299 on Stover Rd. 244 Comment
  POM169380  Fritillaria affinis Joseph P. Tracy 1901-4-26 1045 Humboldt Immediate vicinity of Eureka; Humboldt Hill 0 Comment
  CAS-BOT-BC136028  Fritillaria affinis Doris K. Kildale 1926-3-22 1594 Humboldt Fleener Creek Comment
  HSC22059  Fritillaria affinis Joel W. Reinhard 1966-5-6 31 Humboldt Two beaches N of College Cove Comment
  HSC98746  Fritillaria purdyi Cara Witte 2008-6-2 665 Humboldt 1/2 mile southeast of intersection National Forest 1 and 5N01. 1570 Comment
  SEINET8272054  Fritillaria purdyi Doris K. Kildale 1926-3-21 1575 Humboldt Kneeland Prairie. Comment
  UC2029548  Fumaria capreolata Richard R. Halse 2013-3-28 8767 Humboldt Eureka, weed area by a Texaco station near 3543 Broadway St. (U.S. Highway 101) and its intersection with McCullens Ave. Comment
  HSC8377  Fumaria officinalis Wm. F. Bowman 1968-11-20 Humboldt 4 mi. SE of Arcata, along Jacoby Creek. Comment
  HSC100641  Galium aparine Carl C. Marshall Jul 1887 402 Humboldt Humboldt. Comment
  HSC70724  Galium aparine Gail Newton 1980-7-14 1519 Humboldt Near Deadman Ridge 1097 Comment
  HSC70633  Galium bolanderi R. York 1980-5-18 583 Humboldt Near Black Mtn 792 Comment
  HSC71791  Galium bolanderi Gail Newton 1980-6-16 179 Humboldt Near Monks Camp. 1097 Comment
  UC1586848  Galium californicum subsp. californicum Juha Pykala and D. H. Norris 1987-5-20 802 Humboldt along Bull Creek Road from Panther Gap to 4 miles S of Panther Gap Comment
  JEPS52857  Galium californicum subsp. californicum Lauramay T. Dempster and G. L. Stebbins 1963-7-8 3861 Humboldt 2.3 mi s Weott; Avenue of the Giants 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
  HSC37909  Galium divaricatum Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  UC602522  Galium porrigens Joseph P. Tracy 1925-7-12 7188 Humboldt near South Fork; Trinity River Valley 182 Comment
  HSC38387  Galium trifidum Peter Sorensen 1976-6-14 Humboldt N Spit of Humboldt Bay, S of Samoa near Humboldt County Airport Comment
  UC602542  Galium trifidum Joseph P. Tracy 1927-7-17 8273 Humboldt lower w foothills of Chaparral Mountain; North Coast Ranges, Three Cabins 457 Comment
  UC76673  Galium trifidum var. pacificum Chesnut and Drew 1888-7-8 Humboldt Kneeland Prairie Comment
  HSC58153  Galium triflorum G. L. Clifton, Griswold 1979-8-2 12205 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  UC1199115  Gamochaeta coarctata Joseph P. Tracy 1927-7-17 8264 Humboldt Butler Valley 152 Comment
  UC175604  Gamochaeta ustulata Joseph P. Tracy 1913-6-21 4255 Humboldt Dinsmore's Ranch, opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River, Dinsmore's 762 Comment
  HSC78975  Gamochaeta ustulata L. P. Janeway, Paul Wilson 1984-5-25 830 Humboldt On the N Spit of Humboldt Bay; on BLM lands near the Coast Guard Station 5 Comment
  UC302183  Gamochaeta ustulata Joseph P. Tracy 1926-5-2 7434 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC8386  Garrya elliptica L. Lankow 1968-11-17 Humboldt Patrick's Point State Park Comment
  HSC8389  Garrya elliptica Francis Winter 1960-2-28 Humboldt Samoa Peninsula 6 mi. W of Arcata, Ca Comment
  UC1196885  Garrya elliptica Joseph P. Tracy 1921-3-6 5417 Humboldt Hydesville; Northern Coast Region 30 Comment
  OBI14161  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 a Humboldt Trinity River Valley, at Willow crk 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
  UCSB72517  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
  UCSB72518  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
  HSC1802  Gaultheria shallon William J. Ferlatte, B. D. Rogers 1966-8-15 3127 Humboldt 5 mi. E of Arcata Comment
  HSC7806  Gaultheria shallon A. E. Inman 1962-5-25 Humboldt Mad River, Lindsay Creek jct., N bank 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
  SEINET2028836 Image available Gaultheria shallon Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15251 Humboldt 2 miles north of Fortuna Comment
  SEINET3107001  Gaultheria shallon Steve Selva, Roger Jensen 1974-8-21 26 Humboldt Redwood grove adjacent to highway 101 rest stop. Approx 3 miles N of Trinidad. Comment
  UC412682  Gaultheria shallon Mrs. M. H. Manning Oct. 1901 Humboldt near Hupa Comment
  UC562735  Gaultheria shallon Joseph P. Tracy 1936-6-28 15017 Humboldt Bald Mountain at Lake Prairie Lake Prairie; Bald Mountain, Lake Prairie 1066 Comment
  HSC54671  Gayophytum diffusum subsp. parviflorum Overton, Butler 1979-7-25 9910 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  HSC55051  Gayophytum diffusum subsp. parviflorum G. L. Clifton, Griswold 1979-7-31 11582 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa Comment
  HSC55075  Gayophytum diffusum subsp. parviflorum G. L. Clifton, Griswold 1979-7-31 11684 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC183697  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1912-7-31 3925 Humboldt Buck Mountain Northern Coast Ranges (near the summit) 1524 Comment
  UC505121  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1932-7-11 10401 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC74457  Gayophytum heterozygum Gail Newton 1980-8-10 2013 Humboldt Near Blake Mtn. 1798 Comment
  UC1196959  Gayophytum humile Joseph P. Tracy 1926-6-27 7686 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  NY232196  Gayophytum strictum H. N. Bolander 1866-1 6535 Humboldt Comment
  UC495730  Genista Joseph P. Tracy 1927-7-24 8301 Humboldt Mattole Valley; Northern Coast Ranges, Mattole Valley 152 Comment
  HSC36597  Gentiana affinis Linda M. Barker, J. O. Sawyer, Thomas W. Nelson 1975-9-4 1307 Humboldt Megwill Point on Elk Head, N of Trinidad in Trinidad State Beach 15 Comment
  UC1198639  Gentiana affinis var. ovata Joseph P. Tracy 1913-9-9 4401 Humboldt prairies at s end Big Lagoon; Northern Coast Ranges 30 Comment
  HSC12414  Gentiana sceptrum D. Santana 1970-10-14 35 Humboldt Big Lagoon Bog Comment
  HSC8642  Geranium bicknellii D. E. Anderson 1963-5-25 2497 Humboldt 4 mi. E of Petrolia. Comment
  UC165804  Geranium carolinianum J. P. Tracy 1901-6-23 1186 Humboldt immediate vicinity of Eureka 0 Comment
  UC1198958  Geranium core-core Joseph P. Tracy 1938-6-11 15892 Humboldt Table Bluff 91 Comment
  JEPS61425  Geranium dissectum Mrs. M. H. Manning Jun 1902 Humboldt Hupa Comment
  HSC59717  Geranium dissectum Clark L. Miller 1979-5-9 2111 Humboldt Samoa Dunes off Samoa Blvd. Comment
  HSC8644  Geranium dissectum W. D. Stevens 1967-7-14 36 Humboldt Along Bear Creek, 1 mi. upstream from new Hwy. 101 bridge. Comment
  HSC90263  Geranium dissectum Jean Hanson 1980-5-24 67 Humboldt Indian (Gunther) Island in Humboldt Bay, city of Eureka, W end of island, S of dike Comment
  HSC8651  Geranium molle R. T. Forester 1963-4-30 17 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  UC1197395  Geranium molle Joseph P. Tracy 1911-7-9 3463 Humboldt near Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC169882  Geranium molle Harley P. Chandler May 1901 1124 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  HSC8652  Geranium molle J. L. Baker 1965-4-2 30 Humboldt Humboldt Meridian, 4 mi. N of Arcata on N Bank Rd. Comment
  HSC8653  Geranium molle Jack Rockwell 1962-5-4 55 Humboldt 488 Comment
  HSC8654  Geranium molle S. S. Stutz 1963-5-18 59 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  HSC89987  Geranium molle Leonel Arguello 1989-6-24 24 Humboldt Lanphere-Christensen Dunes Preserve 3 mi. W of Arcata, Hunt parcel Comment
  UC1198960  Geranium oreganum Joseph P. Tracy 1935-5-25 13880 Humboldt Fort Seward 106 Comment
  UC1198954  Geranium solanderi Joseph P. Tracy 1931-5-23 9453 Humboldt vicinity of Trinidad (Trinidad Station); Northern Coast Region, Trinidad Station 60 Comment
  HSC55323  Geum macrophyllum Griswold, Butler 1979-7-12 7140 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC14245  Geum macrophyllum Chesnut and Drew 1888-8-10 Humboldt Arcata Comment
  JEPS69517  Gilia capitata subsp. capitata Lincoln Constance 1934-5-23 621 Humboldt sw slope upper end Look Prairie (South Fork Eel River, Bull Creek Region); Bull Creek Region, South Fork Eel River, Look Prairie 365 Comment
  CAS-BOT-BC226156  Gilia capitata subsp. pacifica Doris K. Kildale 1927-5-15 3168 Humboldt Back of Cape Mendocino Comment
  RSA23650  Gilia capitata subsp. pacifica C. B. Wolf 1939-7-8 9519 Humboldt Devil's Gate, south of Cape Mendocino. 8 Comment
  UC133634  Gilia capitata subsp. pacifica Joseph P. Tracy 1905-6-11 2188 Humboldt near Bucksport (region about Humboldt Bay); Region about Humboldt Bay, Northern Coast Region 0 Comment
  HSC16983  Gilia millefoliata J. W. Bosworth 1965-5-14 49 Humboldt 1 mi. N of Fairhaven on Samoa Comment
  HSC95589  Gilia millefoliata Andrea Pickart 2002-5-20 105 Humboldt Manila Dunes, near Manila Community Services District treatment area 15 Comment
  UC1197907  Gilia millefoliata Joseph P. Tracy 1931-6-15 9583 Humboldt sandy ground along bay shore at Bucksport (around Humboldt Bay); Northern Coast Region, around Humboldt Bay 6 Comment
  UC1197904  Gilia tricolor subsp. tricolor Joseph P. Tracy 1932-5-1 9857 Humboldt Redway 182 Comment
  HSC70953  Githopsis specularioides R. York 1980-5-17 522 Humboldt Near Le Perron Peak 792 Comment
  HSC103275  Githopsis specularioides John McRae 2014-5-23 Humboldt Six Rivers National Forest, Hennessy Peak Quad, Forest Service Road 6N20 to Oak Knob. 829 Comment
  JEPS76827  Glaux maritima L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1978-5-27 4806 Humboldt 1.2 mi n Eureka Bridge; Samoa Peninsula Comment
  JEPS76828  Glaux maritima L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1978-5-27 4806 Humboldt 1.2 mi n Eureka Bridge; Samoa Peninsula Comment
  CAS-BOT-BC218474  Glehnia littoralis subsp. leiocarpa Carl B. Wolf 1937-6-18 8906 Humboldt Centerville Beach 3 Comment
  HSC93766  Glyceria declinata Gordon Leppig 1996-5-5 329 Humboldt Arcata, Healthsport parking lot of Union St. 2 Comment
  UC1145104  Glyceria grandis Joseph P. Tracy 1936-6-28 15024 Humboldt Lake Prairie; Bald Mountain 1066 Comment
  UC1132071  Glyceria occidentalis H. L. Person 1932-5-11 Humboldt near Arcata; Eureka Quad 0 Comment
  UC1103751  Glyceria striata Joseph P. Tracy 1903-6-14 1922 Humboldt Eureka; Northern Coast Region 0 Comment
  SEINET4584957  Glyceria striata H. Ch 1901-1 1526 Humboldt Klamath River, North Coast Ranges 427 Comment
  HSC39773  Gnaphalium palustre Peter Sorensen 1976-8-16 Humboldt Humboldt Bay: Woodley Island Comment
  HSC5713  Gnaphalium palustre H. E. Parks, S. T. Parks Aug 1937 24080 Humboldt Trinidad; Spruce Cove Comment
  HSC57969  Gnaphalium palustre G. L. Clifton, Griswold 1979-7-31 11692 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC204751  Gnaphalium palustre Joseph P. Tracy 1918-7-5 5012 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley 304 Comment
  UC630459  Gnaphalium palustre H. E. and S. T. Parks 1937-7 24026 Humboldt Spruce Cove Northwestern California, Trinidad, Spruce Cove Comment
  HSC5711  Gnaphalium palustre Jerry Parker 1968-9-24 74 Humboldt Mckinleyville beach Comment
  IRVC21928  Goodyera oblongifolia J. W. Johnson Jul 1962 1075 Humboldt Base of the Samoa Peninsula in the Lamphere-Christensen Dunes Preserve. Comment
  HSC36646  Goodyera oblongifolia J. D. Ackerman 1975-9-15 742 Humboldt Arcata, behind Fern Ln. E of Humboldt State University Comment
  CAS-BOT-BC304732  Grindelia hirsutula Alice Eastwood; John Thomas Howell 1934-4-11 1321 Humboldt Eureka Comment
  JEPS82251  Grindelia hirsutula Roger Raiche 1983-7-19 30540 Humboldt along Mattole Road several mi w of Honeydew (2 mi e of Lighthouse Road) Comment
  JEPS94281  Grindelia hirsutula Vernon Oswald and Lowell Ahart 1997-9-4 8845 Humboldt Big Lagoon County Park at the sw edge of Big Lagoon Big Lagoon; North Coast Region, Big Lagoon County Park, Big Lagoon 3 Comment
  UC1118561  Grindelia hirsutula G. T. Nordstrom 1937-7-1 1444 Humboldt 1.6 mi w Orick; Orick Quad. 0 Comment
  UC725494  Grindelia hirsutula A. A. Heller 1923-7-7 13764 Humboldt s of Garberville (near the s fork of the Eel River) Comment
  POM161906  Grindelia stricta var. stricta Joseph P. Tracy 1921-7-10 5856 Humboldt Big Lagoon. 6 Comment
  RSA21023  Grindelia stricta var. stricta C. B. Wolf 1937-9-12 9333 Humboldt Humboldt Bay, 1 mile south of Arcata on road to Eureka. 3 Comment
  UC1222253  Hackelia californica Joseph P. Tracy 1949-8-26 18524 Humboldt on Ridge 2 mi e Grove's Prairie (near Elk Camp); Trinity nSummit 1524 Comment
  JEPS67930  Hackelia micrantha Joseph P. Tracy 1932-7-17 10691 Humboldt head of Devil's Hole; Klamath Mountains, Trinity Summit 1828 Comment
  CAS-BOT-BC302444  Hazardia whitneyi var. discoidea Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC99088  Helenium bigelovii Cara Witte 2008-8-6 1010 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1486 Comment
  HSC99503  Helenium bigelovii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 163 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
  UC205209  Helenium bigelovii Joseph P. Tracy 1919-9-18 5245 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1524 Comment
  CAS-BOT-BC306863  Helenium bolanderi Doris K. Kildale 1927-6-26 3592 Humboldt Patrick's Point Comment
  HSC96485  Helenium bolanderi Gordon Leppig 1997-6-19 453 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  HSC25943  Helenium puberulum Thomas W. Nelson 1970-10-31 293 Humboldt Eel River near N end of the Scotia Bluff. Comment
  BLMAR710  Helminthotheca echioides Jennifer Wheeler 2010-9-28 710 Humboldt Lost Coast Headland, decommissioned naval base side, east side of road 76 Comment
  CAS-BOT-BC305848  Helminthotheca echioides Doris K. Kildale 1928-7-29 5918 Humboldt Bear River at Capetown Comment
  UCD132967  Helminthotheca echioides Collector unknown Date Unknown s.n. Humboldt exact location unknown. Comment
  HSC102615  Hemieva ranunculifolia M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1602 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC38786  Hemizonella minima J. P. Smith 1976-5-30 8821 Humboldt Near Black Rock on the road to Clear Lake 1524 Comment
  UC582405  Hemizonella minima Joseph P. Tracy 1930-6-16 8958 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC100436  Hemizonella parvula Carl C. Marshall Jun 1886 25 Humboldt South Fork Mtn. Comment
  UC1281660  Hemizonia congesta subsp. tracyi Richard Spellenberg 1965-6-14 1129 Humboldt 6 mi se Kneeland Comment
  CDA40919  Heracleum lanatum P. Haggard 2002-8-23 PDR P 070809 Humboldt North Coast; Wildlife Refuge in the vicinity of Eureka. Sheet 2 of 3 0 Comment
  HSC76406  Heracleum maximum Denis Kearns 1981-7-23 428 Humboldt Near Whiteys Peak. 1524 Comment
  SD53245  Heracleum maximum Darley F. Howe 1962-5-22 3301 B Humboldt 0.5 miles north of Orick on # 101 29 Comment
  HSC78088  Hesperevax sparsiflora var. brevifolia L. P. Janeway, Amy Eisenberg 1984-4-25 747 Humboldt On N Spit of Humboldt Bay, SE side of intersection of Samoa and Fairhaven roads, NE of the willow patch. 3 Comment
  CAS-BOT-BC143656  Heteromeles arbutifolia Doris K. Kildale 1926-6-13 2163 Humboldt Briceland Bridge, 1/2 mile west of Garberville 114 Comment
  UC666828  Heteromeles arbutifolia Joseph P. Tracy 1937-7-11 15414 Humboldt Garberville 152 Comment
  CDA31699  Heterotheca oregona M. K. Beyers, I. Shepardson 2009-9-13 244 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
  SBBG45062  Heterotheca sessiliflora subsp. bolanderi C. B. Wolf 1927-8-30 Humboldt 2 mi S of Petrolia on Mattole River near where road crosses river Comment
  JEPS49746  Heuchera micrantha var. diversifolia Harley P. Chandler May 1901 1231 Humboldt North Coast Ranges 457 Comment
  UC902002  Heuchera micrantha var. diversifolia Joseph P. Tracy 1947-5-10 17682 Humboldt Garberville, near airport Garberville 152 Comment
  HSC57023  Hieracium albiflorum Overton, Butler 1979-7-24 9640 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  CAS-BOT-BC316005  Hieracium nudicaule Joseph P. Tracy 1937-8-7 15620 Humboldt Bald Mt. 914 Comment
  UC167083  Hierochloe occidentalis Joseph Burtt Davy 1899-6-11 5424 Humboldt Elk Prairie Comment
  HSC26474  Hippuris vulgaris John R. Keith 1973-5-9 Humboldt 300 yds. E of junction of Guintoli Ln. and West End Rd. Comment
  HSC74670  Holcus lanatus Gail Newton 1981-8-5 2355 Humboldt Near Bug Creek, E Fork. 820 Comment
  SACT001293  Holcus lanatus Lyle Bibb 1963-5-11 Humboldt Comment
  BLMAR150  Holodiscus discolor Donald Hazlett 1994-6-7 150 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC23709  Holodiscus discolor Tim Baroni 1971-6-25 43 Humboldt Comment
  HSC48817  Holodiscus discolor Brad Klipfel 1973-7-31 231 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC57162  Holodiscus discolor Overton, Butler 1979-7-26 9962 Humboldt Near Willow Creek, close to the town of Willow Creek 1326 Comment
  HSC89452  Holodiscus discolor P. A. Daly 1986-3-12 86 Humboldt Trinidad Head 61 Comment
  HSC98885  Holodiscus discolor Cara Witte 2007-7-9 459 Humboldt Forest Service Road 4N32. 1.4 mile north of intersection with 4N32B. 1413 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
  UC154211  Holodiscus discolor Joseph P. Tracy 1901-7-31 1231 Humboldt near Hydesville (Northern Coast Region); Northern Coast Region 60 Comment
  UC666848  Holodiscus discolor Joseph P. Tracy 1937-6-20 15347 Humboldt Bear River 10 miles upstream from the mouth Bear River 152 Comment
  CAS-BOT-BC281263  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1933-6-6 12508 Humboldt Northern Coast Region. Trinidad 9 Comment
  UC526707  Hordeum jubatum Joseph P. Tracy 1927-7-16 8249 Humboldt mouth Elk River (region about Humboldt Bay); Northern Coast Region, Humboldt Bay region, Elk River 3 Comment
  HSC10176  Hordeum marinum subsp. gussoneanum J. A. Waller 1965-4-19 15 Humboldt Kneeland area. Comment
  CAS-BOT-BC536628  Horkelia californica Joseph P. Tracy 1937-8-22 15672 Humboldt Foot of low hills south of Fields Landing 6 Comment
  UC1222320  Horkelia californica subsp. dissita Joseph P. Tracy 1950-7-6 19018 Humboldt 3 mi s Burr Valley (High meadow); Buck Mountain 1158 Comment
  UC902134  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1947-7-5 17792 Humboldt Mud Springs Trinity Summit 1341 Comment
  HSC97584  Horkelia tridentata subsp. flavescens C. Witte 2007-5-18 43 Humboldt Near Bottleneck Spring. 1575 Comment
  UC1222317  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1951-6-26 19597 Humboldt n side Board Camp Mountain (extreme head of Redwood Creek) Comment
  HSC35282  Horkelia tridentata var. flavescens J. D. Ackerman 1975-6-18 472 Humboldt Big Hill Rd., 10.4 mi. E of Hoopa and Hwy. 96 Comment
  HSC96954  Horkelia tridentata var. flavescens Ryoko Ito, Shauna McDonald 2007-6-11 3 Humboldt 11.9 mi. above Hwy. 299 1585 Comment
  CAS-BOT-BC206125  Hosackia crassifolia H. E. Parks; J. P. Tracy 1930-9-15 0762 Humboldt Kneeland, Bald Hills Comment
  HSC44356  Hosackia crassifolia Brad Klipfel 1974-7-23 464 Humboldt Horse Mtn. Comment
  UCD106038  Hosackia gracilis W. A. Williams 1951-6-14 s.n. Humboldt 3 miles E of Hydesville, Bech Ranch swale. Comment
  SBBG68130  Hosackia stipularis var. stipularis H. E. Parks -Jul-1932 Humboldt Bishop Pine Lodge, Trinidad Comment
  HSC74204  Hydrophyllum occidentale M. A. Baker 1980-7-19 3007 Humboldt Near Bret Hole. 1814 Comment
  RSA8307  Hypericum formosum var. scouleri I. L. Wiggins 1932-7-18 5886 Humboldt Boggy meadow between Arcata and Bayside Comment
  UC1198401  Hypericum perforatum Joseph P. Tracy 1933-11-12 13117 Humboldt along S. Fork Eel R. Miranda; S. Fork Eel R., Miranda 121 Comment
  UC165829  Hypericum perforatum Joseph P. Tracy 1911-7-9 3478 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC909470  Hypericum perforatum J. H. Thomas 1949-6-12 899 Humboldt ca. 1/2 mi. n. Orleans (near Klamath R.) Comment
  CAS-BOT-BC401231  Hypericum perforatum J. H. Thomas 1949-6-12 899 Humboldt Near Klamath River, about 1/2 mile north of town of Orleans Comment
  POM311762  Hypericum perforatum Karen Hosterman 1957-8-29 1109 Humboldt 7 miles from Orleans, within 1 mile of junction of Klamath Road and Red Cap Creek. 114 Comment
  SDSU6911  Hypericum perforatum D. F Howe 1961-8-2 3118 Humboldt 10.5 miles east of Orick on Bald Mt.road, humboldt, Co. 762 Comment
  HSC100439  Hypochaeris glabra Carl C. Marshall May 1885 44 Humboldt Roadsides, etc. Comment
  HSC37940  Hypochaeris radicata Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  UC1069673  Hypochaeris radicata H. L. Person 1932-7-16 L.H. 25 Humboldt Highway n Trinidad; Rock Point Quad. Comment
  RSA78187  Iris Rimo Bacigalupi 1951-6-14 3414 Humboldt Pseudotsuga and Abies concolor, about Snow Camp meadow, ridge between Mad River and Redwood Creek (Bald Mountain) 1433 Comment
  HSC23734  Iris douglasiana Tim Baroni 1971-7-5 101 Humboldt 8 mi. E of Petrolia Comment
  UCR275116  Iris douglasiana Charity A. Hartshorn 2016-5-14 30 Humboldt Arcata Community Forest 244 Comment
  RSA24204  Iris macrosiphon Carl B. Wolf 1941-3-3 9993 Humboldt N. Coast Range, 1/2 miles N of Ettersburg on road to Honeydew. 305 Comment
  UC667117  Iris macrosiphon Joseph P. Tracy 1927-6-12 8138 Humboldt Horse Mountain; Northern Coast Ranges 1524 Comment
  RSA136521  Iris purdyi Lee W. Lenz, E. K. Balls 1952-5-11 17191 Humboldt 10.1 miles southwest from Trinity - Humboldt County line; 5.2 miles north of Harris on road to Zenia Comment
  CAS-BOT-BC133694  Iris tenax L. W. Lenz 1953-5-17 18317 Humboldt 1 mi. below Somes Bar on Klamath River 179 Comment
  CHSC32902  Iris tenax subsp. klamathensis T. Jimerson; J. Pageau 1979-5-9 450 A Humboldt In old clear cut on Forest Road 12N20, 1.5 mi. west of its junction with F. R. 15N01 ( G. O. Road). Orleans. Just west of serpentine balds. 792 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
  RSA136372  Iris tenax subsp. klamathensis Lee W. Lenz 1953-5-17 18317 Humboldt 1 mile below Somes Bar on Klamath River 180 Comment
  UC14929  Iris tenuissima Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  JEPS60151  Isoetes nuttallii Joseph P. Tracy 1935-5-25 13841 Humboldt Fort Seward 106 Comment
  UC1152073  Isolepis carinata Joseph P. Tracy 1948-5-31 17982 Humboldt 1/2 mi ne Garberville (on the road to Harris); ne of Garberville Comment
  UC198638  Isolepis setacea Joseph P. Tracy 1917-6-17 4817 Humboldt around, Salmon Creek Valley Humboldt Bay; Northern Coast Ranges, , Salmon Creek Valley 30 Comment
  UC1196176  Isopyrum stipitatum Joseph P. Tracy 1922-5-29 6068 Humboldt valley at head of South Yager Creek; Northern Coast Ranges, head of South Yager Creek 762 Comment
  CAS-BOT-BC340155  Jaumea carnosa Doris K. Kildale 1929-6-6 8484 Humboldt Stone Lagoon Comment
  UC637154  Jaumea carnosa Edward Lee 1934-8-17 1149 Humboldt 35 mi n Eureka (e shore of Lagoon); Big Lagoon 3 Comment
  CAS-BOT-BC109922  Juncus Doris Kildale Gillespie 1931-6-7 10654 Humboldt South Fork Mountain. Blake Lookout. 1726 Comment
  CHSC105757  Juncus balticus subsp. ater Peter F. Zika 2008-11-3 24273 Humboldt North Coast. Pebble shore of brackish lagoon, near Stone Lagoon. 1 Comment
  HSC44315  Juncus balticus subsp. ater Thomas W. Nelson, Jane Nelson 1977-9-3 3737 Humboldt Head of Bear Creek 1585 Comment
  CHSC88880  Juncus breweri L. P. Janeway; B. Castro 2004-9-10 8320 Humboldt North Coast. South Spit of Humboldt Bay, 3.6 km north-northeast of Table Bluff Lighthouse site; between South Spit Road and the Humboldt Bay mudflats. 2 Comment
  HSC13994  Juncus bufonius H. E. Parks, S. T. Parks Jul 1943 24254 Humboldt Spruce Cove, Trinidad 61 Comment
  RSA298326  Juncus bufonius J. P. Smith, Advanced Plant Taxonomy Plant 1971-10-9 5009 Humboldt Mad River above the Fish Hatchery. Comment
  UC1152115  Juncus bufonius Joseph P. Tracy 1930-10-19 9233 Humboldt near Alton; Eel River Comment
  HSC96585  Juncus bufonius var. bufonius Gordon Leppig 1998-8-23 1069 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  HSC14098  Juncus bufonius var. occidentalis H. E. Parks, J. P. Tracy 1935-6-16 11273 Humboldt Buck Mt., lower NW slopes 793 Comment
  HSC67957  Juncus confusus Steve Selva, J. P. Smith 1970-6-30 4110 Humboldt Comment
  HSC97306  Juncus covillei M. Mesler 2007-7-15 785 Humboldt Near Grouse Mtn., 0.9 mi. S of NF 1 on FS Rd. 5N04 1582 Comment
  JEPS63893  Juncus effusus subsp. pacificus W. L. Jepson 1932-7-29 16440 Humboldt Weatt Comment
  HSC63878  Juncus laccatus M. A. Baker 1979-6-29 957 Humboldt Hopkins Creek 750 Comment
  HSC14026  Juncus lescurii David Adams 1960-7-10 Humboldt W of Mad River Slough 0 Comment
  HSC67457  Juncus patens J. P. Smith 1971-10-9 5034 Humboldt Mad River above the Fish Hatchery. Comment
  HSC99032  Juncus patens Cara Witte 2008-7-14 896 Humboldt Cold Spring. 0.5 mi. S of Titlow Hill. 1440 Comment
  UC183779  Juncus saximontanus Joseph P. Tracy 1912-7-31 3911 Humboldt near Buck Mountain summit; Northern Coast Ranges 1219 Comment
  HSC55139  Kalmia polifolia G. L. Clifton, Griswold 1979-8-1 12018 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  CAS-BOT-BC235876  Keckiella corymbosa L. B. Kildale 1930-8-3 10357 Humboldt Chaparral Mountain at Bug Creek 914 Comment
  JEPS10903  Keckiella lemmonii Lincoln Constance 1934-6-27 937 Humboldt Dyerville South Fork Eel River, Bull Creek Region (near Eel River junction with South Fork, on s side of Eel River, 0.5 mi nw of South Fork P.O. and railroad station, end of railroad bridge) Comment
  UC1222453  Kickxia elatine Joseph P. Tracy 1934-8-14 13572 Humboldt Alton North Coast Ranges (along Van Duzen River) 30 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
  HSC32341  Koeleria macrantha D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5640 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  UC1103696  Koeleria macrantha Joseph P. Tracy 1934-6-19 13233 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  UC187287  Koeleria macrantha Joseph P. Tracy 1908-6 2778 Humboldt nw slope Buck Mountain; Northern Coast Ranges, nw slope of Buck Mountain 914 Comment
  UC403006  Kopsiopsis strobilacea unknown 1901-1 Humboldt Comment
  UC577364  Lamium amplexicaule Joseph P. Tracy 1923-6-10 6261 Humboldt Eureka; Northern Coast Ranges 0 Comment
  UCSB45118  Lamium amplexicaule Council, Michael 1978-3-11 Humboldt Southwest corner of Cathedral Oaks and Los Caneros 10 Comment
  HSC14213  Lamium purpureum R. C. Drewien 1963-3-24 7 Humboldt McKinleyville, Turner Dr. and Mill Creek crossing Comment
  UC1223221  Lapsana communis Joseph P. Tracy 1949-7-4 18326 Humboldt intersection of Kneeland and Butter Valley roads (at Cameron Hill); Cameron Hill Comment
  UC1199132  Lasthenia californica subsp. californica Joseph P. Tracy 1922-5-29 6083 Humboldt South Yager Creek valley Northern Coast Ranges, South Yager Creek valley 762 Comment
  UC128624  Lasthenia californica subsp. californica Joseph Burtt Davy and Walter C. Blasdale 1899-6-9 5380 Humboldt Harris Comment
  UC169320  Lasthenia californica subsp. californica Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3626 Humboldt between Hydesville and Alton; Hydesville 30 Comment
  JEPS17255  Lasthenia glaberrima Joseph P. Tracy 1930-6-15 8748 Humboldt near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  UCD106195  Lathyrus annuus W. A. Williams 1951-6-14 s.n. Humboldt 5 miles S of Capetown. Comment
  HSC86123  Lathyrus glandulosus S. L. Broich 1981-6-9 1146 Humboldt 8.5 km NE of Freshwater-Kneeland Rd. on the road to Maple Creek Comment
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Nov 6 2012
  UC1222418  Lathyrus glandulosus Joseph P. Tracy 1949-6-20 18313 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  JEPS55246 Image available Lathyrus japonicus Joseph P. Tracy 1912-7-7 3736 Humboldt Eureka Northern Coast Region 0 Comment
  HSC49084  Lathyrus latifolius Patricia Shesgreen 1978-8-5 130 Humboldt Spring St. between 16th and 17th Sts., Arcata. Comment
  POM277522  Lathyrus littoralis Lyman Benson 1928-7-10 s.n. Humboldt Clam Beach, Trinidad. 12 Comment
  UC1199081  Lathyrus littoralis Joseph P. Tracy 1933-5-20 12223 Humboldt Cape Mendocino 6 Comment
  HSC45332  Lathyrus littoralis R. York, Linda York 1978-4-1 100 Humboldt End of lighthouse Rd., 2 mi. SE of Petrolia. Comment
  RSA406672  Lathyrus littoralis J. P. Smith, T. W. Nelson 1977-6-30 9217 Humboldt Samoa Peninsula just east of the drag strip. Comment
  HSC82184  Lathyrus nevadensis var. nevadensis Thomas W. Nelson 1977-6-15 3440 Humboldt Along old road to ski area 1372 Comment
  UC1222414  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1946-5-19 17534 Humboldt Kneeland Prairie 762 Comment
  HSC79370  Lathyrus palustris Kenneth Clark 1980-3-27 560 Humboldt S of Dead man's Gulch 0 Comment
  POM277780  Lathyrus polyphyllus Lyman Benson 1930-7-18 2189 Humboldt Arcata 457 Comment
  HSC89576  Lathyrus sphaericus K. Grenier, Leonel Arguello 1989-6-20 354 Humboldt Child's Hill Prairie, along Bald Hills Rd., next to Stagecoach. Comment
  HSC99442  Lathyrus torreyi K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 92 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  NY73892  Lathyrus torreyi H. N. Bolander 1866-1 6506 Humboldt Thickets near the coast Comment
  UC1222402  Lathyrus torreyi Joseph P. Tracy 1943-7-18 17430 Humboldt East Fork of Willow Creek, Willow Creek Canyon, along Trinity Highway Willow Creek Canyon Comment
  RSA64951  Lathyrus vestitus subsp. bolanderi C. L. Hitchcock 1949-6-8 19087 Humboldt 1 mile SE of Willow Creek, along Highway #299. Comment
  CAS-BOT-BC325927  Layia carnosa W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  HSC48775  Layia carnosa Brad Klipfel 1975-5-22 624 Humboldt Near city of Eureka airport S of Samoa Comment
  HSC95222  Layia carnosa Heather Barnes 2002-3-29 22 Humboldt Manila dunes, 0.2 km NW of Lupine St. and water tank. 3 Comment
  RSA0008480  Layia carnosa Jennifer Wheeler 2010-5-6 568 Humboldt West of Arcata, Samoa Peninsula outer Humboldt Bay north of Manila 0 Comment
  HSC36107  Lemna minor Neil D. Ledet 1973-11-29 7 Humboldt 16 mi. S of Ferndale, N side of Cape Town along county Rd., floating on ranch pond Comment
  CAS-BOT-BC534923  Lemna turionifera L. R. Abrams; R. Bacigalupi 1958-6-17 8271 Humboldt Big Lagoon south of Orick Comment
  CAS-BOT-BC534876  Lemna valdiviana Henry M. Pollard 1948-7-21 s.n. Humboldt New Orleans Comment
  HSC5926  Leontodon saxatilis subsp. saxatilis S. R. Johnson 1965-3-15 12 Humboldt 1 mi. N of Luffenholtz Beach Comment
  RSA409613  Lepechinia calycina Thekla Mohr 1919-07 3342 Humboldt Eel River. Comment
  UC1225756  Lepidium latipes Joseph P. Tracy 1948-5-31 17991 Humboldt Harris 762 Comment
  UC195426  Lepidium virginicum Joseph P. Tracy 1915-9-12 4670 Humboldt opposite Laribee Creek; Northern Coast Ranges, Eel River, Holmes Flat 60 Comment
  HSC71033  Leptosiphon bicolor Thomas W. Nelson 1977-4-20 3325 Humboldt Along FS Rd. 1N15 at bridge over Mad River 762 Comment
  SBBG5980  Leptosiphon bicolor H. and M. Dearing 1939-5-24 3419 Humboldt pass, Dyerville to Mattole Rd, W of Panther Gap Comment
  HSC74229  Leptosiphon ciliatus M. A. Baker 1980-7-15 2958 Humboldt Near Whiting Ridge. 1341 Comment
  CAS-BOT-BC226709  Leptosiphon latisectus Victor Duran 1933-5-10 3403 Humboldt Near Blocksburg Comment
  RSA135357  Leptosiphon nuttallii Volney Rattan 1878-1 s.n. Humboldt [no additional locality data provided] Comment
  CDA8182  Lessingia filaginifolia var. californica T. C. Fuller 1961-9-28 7048 Humboldt East of Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  CAS-BOT-BC341824  Lessingia nemaclada Joseph P. Tracy 1937-9-5 15681 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  RSA54146  Lessingia nemaclada H. M. Pollard 1945-8-25 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon. 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
  HSC99100  Lewisia nevadensis C. Witte 2007-5-21 52 Humboldt Board Camp Mountain. Near intersection of Forest Service Road 4N38 with National Forest 1. 1394 Comment
  UC183667  Lewisia nevadensis Joseph P. Tracy 1913-6-17 4167 Humboldt near summit of Buck Mountain Northern Coast Ranges, Buck Mountain 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
  HSC97936  Lewisia triphylla Cara Witte 2007-5-31 145 Humboldt Off National Forest 1. Near Board Camp Mountain. Approximately 4 miles south of Brays Opening and 1/2 mile west of road. 1510 Comment
  RSA331970  Leymus mollis subsp. mollis Dave Kelly, Walter Wisura 1985-7-28 4062 Humboldt Outer sand dunes near Manilla, Samoa Peninsula near Eureka Comment
  RSA10139  Leymus vancouverensis Joseph P. Tracy 1930-7-21 8894 Humboldt Cape Mendocino, south of point of the Cape 3 Comment
  HSC99522  Ligusticum apiifolium K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 185 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CAS-BOT-BC436493  Ligusticum apiifolium Joseph P. Tracy 1909-8-29 3084 Humboldt Humboldt Bay, near top of Humboldt Hill 152 Comment
  HSC49055  Ligusticum californicum Patricia Shesgreen 1978-8-2 123 Humboldt Arcata Community Forest, 100 yds N of field house, 25 ft from pond Comment
  HSC102534  Ligusticum grayi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1520 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  SEINET11764870  Lilaea scilloides J. P. Tracy 1950-6-18 18844 Humboldt Davis Creek, Cape Mendocino, S of point of the Cape 30 Comment
  UC672870  Lilaea scilloides Joseph P. Tracy 1933-5-20 12274 Humboldt back of Cape Mendocino (Cape Ridge); Cape Ridge 304 Comment
  HSC95380  Lilaeopsis occidentalis Andrea Pickart 2002-7-9 170 Humboldt Bracut Marsh at freshwater outlet into salt marsh 10 Comment
  HSC31642  Lilium columbianum Glenn McGourty 1974-6-1 80 Humboldt Comment
  HSC45280  Lilium columbianum Clifton Raymond Chesbrough 1971-7-5 40 Humboldt Along Fickle Hill Rd. Comment
  CAS-BOT-BC130633  Lilium kelloggii A. M. Vollmer; L. Beane 1951-7-1 173 Humboldt Freshwater, about 4-5 miles northeast of Eureka Comment
  CAS-BOT-BC130642  Lilium kelloggii 1942-7-9 s.n. Humboldt Alder Point Comment
  CHSC98393  Lilium kelloggii Dean Wm. Taylor 2004-6-23 19116 Humboldt Fickle Hill Road 1.3 miles north of junction Butler Valley road. 731 Comment
  RSA256730  Lilium kelloggii A. Montalvo, J. D. Akerman 1974-8-1 399 Humboldt 1 mile west of Kneeland P.O. on Greenwood Heights Road Comment
  HSC102166  Lilium pardalinum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1076 Humboldt Patterson Meadows 1555 Comment
  HSC79327  Lilium pardalinum subsp. pardalinum D. K. Imper 1982-7-15 Humboldt 1/3 mi. E of Grizzly Creek State Park on Hwy. 36, bank of Van Duzen River 1220 Comment
  HSC65214  Lilium pardalinum subsp. vollmeri T. Jimerson, J. Pageau, B. Marcot 1979-8-9 711 Humboldt 30 ft E of Rd. Timber Sale Unit 25 boundary, S of Tish Tang Creek 1341 Comment
  CAS-BOT-BC132968  Lilium rubescens Tom Craig 1941-7-2 s.n. Humboldt Near Yager Comment
  HSC98854  Lilium washingtonianum subsp. purpurascens Cara Witte 2008-7-11 872 Humboldt National Forest 1. 1/2 mile south from intersection with Forest Service Road 6N01B. 1575 Comment
  BLMAR501  Limnanthes douglasii Jennifer Wheeler 2009-4-30 501 Humboldt King range, Hidden Valley trail; trail forward Comment
  UC1005603  Limnanthes douglasii Frank W. Gould 1939-5-29 836 Humboldt near ski hut; Horse Mountain 1005 Comment
  BLMAR734  Limnanthes douglasii subsp. nivea Jennifer Wheeler 2015-4-28 734 Humboldt Larabee Butte, Roadside pasture at Butte Creek Access Rd 722 Comment
  POM254102  Limonium californicum C. C. Harris, S. K. Harris 1939-9-8 973 Humboldt South shore of Humboldt Bay. Comment
  UC1198570  Linanthus bicolor Joseph P. Tracy 1908-6-7 2616 Humboldt Butler Valley North Coast Ranges 152 Comment
  SBBG66372  Linaria vulgaris S. W. Hutchinson -Jun-1925 Humboldt beyond Eureka Comment
  CDA4728  Linum bienne T. C. Fuller 1958-6-17 602 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC79358  Linum bienne Kenneth Clark 1980-4-18 595 Humboldt Above Dead Man's Gulch. 168 Comment
  HSC30369  Listera caurina J. D. Ackerman 1974-6-21 320 Humboldt 2 mi. N of Manila, between dunes and Mad River Slough Comment
  UC1103031  Listera caurina Joseph P. Tracy 1924-7-4 6712 Humboldt Snow Camp 1402 Comment
  JEPS8444  Listera caurina Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3415 Humboldt ridge between Mad River and Redwood Creek; Snow Camp, Bald Mountain ridge 1432 Comment
  HSC64187  Listera convallarioides J. O. Sawyer, M. A. Ericksen 1979-6-23 3388 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  CHSC110733  Listera cordata Dean Wm. Taylor 2011-5-4 21113 Humboldt Alderpoint Road in the vicinity of the headwaters of Knack Creek 777 Comment
  HSC73409  Listera cordata var. nephrophylla Bruce Potter, Leslie Sieburth, Susan Ahrens 1981-4-19 653 Humboldt 229 Comment
  RSA174011  Lithocarpus densiflorus var. densiflorus Robert F. Thorne 1957-9-2 19004 Humboldt Sandy margin of branch of the Eel River at Burlington State Park, just S of Weott. Comment
  RSA476670  Lithocarpus densiflorus var. densiflorus Thekla Mohr s.n. Humboldt Eel River. Humboldt and Mendocino Cos. Comment
  UC1196498  Lithophragma affine Joseph P. Tracy 1921-4-24 5433 Humboldt Phillipsville Flat Northern Coast Ranges, South Fork of Eel River (South Fork of Eel River) 91 Comment
  HSC102632  Lithophragma campanulatum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1617 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC1225759  Lobularia maritima Joseph P. Tracy 1946-6-2 17556 Humboldt near Somoa (on Humboldt Bay); Humboldt Bay 6 Comment
  UC1103160  Lolium multiflorum Joseph P. Tracy 1948-6-13 18043 Humboldt 7 mi nw Blocksburg (Larrabee Creek); Larrabee 304 Comment
  UC167234  Lolium multiflorum Jos. Burtt Davy and W. C. Blasdale 1899-7-30 6201 Humboldt Russ Ranch Comment
  UC50705  Lolium perenne J. Burtt Davy 1899-6-18 5518 Humboldt Pepperwood bottoms; North Coast Ranges, Pepperwood bottoms Comment
  HSC90681  Lolium perenne Gail Newton 1982-6-10 3590 Humboldt Elk River Wildlife Area, Eureka Comment
  CAS-BOT-BC271059  Lolium temulentum Joseph P. Tracy 1935-5-25 13893 Humboldt Dobbyn Creek 152 Comment
  UC1103157  Lolium temulentum Joseph P. Tracy 1913-6-19 4211 1/2 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1103158  Lolium temulentum Joseph P. Tracy 1909-8-1 3064 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC50698  Lolium temulentum Joseph Burtt Davy 1899-6-20 5690 Humboldt Hupa Valley Comment
  UC154252  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy July, 1908 2890 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt & Trinity Co.'s); Northern Coast Ranges, Humboldt & Trinity Co.'s 914 Comment
  JEPS16236  Lomatium dissectum var. dissectum Joseph P. Tracy 1913-6-20 4237 Humboldt lower foothhills of Buck Mt. (on its n.w. slope); Northern Coast Ranges, Buck Mt. 762 Comment
  UC1197163  Lomatium dissectum var. dissectum Joseph P. Tracy 1926-7-5 7737 Humboldt mouth of Middle Yager Creek; Northern Coast Ranges, Middle Yager Creek 762 Comment
  UC906635  Lomatium macrocarpum Joseph P. Tracy 1947-7-5 17780 Humboldt ridge top 1 mi. w. Mud Springs (Trinity Summit); Trinity Summit 1158 Comment
  UCD39986  Lonicera hispidula var. vacillans Rodney Gale Myatt 1971-9-22 1199 Humboldt Along Salmon River, southeast of Somes Bar, and northeast of Hoopa Reservation. 426 Comment
  CAS-BOT-BC241494  Lonicera involucrata var. ledebourii Carl B. Wolf 1927-8-22 770 Humboldt Big Lagoon Comment
  LA205886  Lonicera involucrata var. ledebourii Harlan Lewis; 1940-7-3 sn Humboldt Dry Lagoon State Park, edge of lagoon Comment
  RSA47121  Lonicera involucrata var. ledebourii Doris K. Kildale 1926-4-9 1740 Humboldt Samoa road, sandy peninsula. Comment
  UC180197  Lonicera involucrata var. ledebourii Joseph P. Tracy 1914-6-14 4506 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CAS-BOT-BC200911  Lotus Greg de Nevers 2001-4-18 12256 Humboldt Lanphere-Christenson dunes, near Arcata 9 Comment
  HSC98250  Lotus aboriginus D. E. Anderson 1963-9-29 2850 Humboldt Fish Lake. Comment
  HSC98254  Lotus corniculatus Norman H. Moe 1962-5-19 Humboldt Lanphere's Place Comment
  UC1223439  Lotus corniculatus Joseph P. Tracy 1950-9-22 19345 Humboldt 2 mi s Field's Landing town 6 Comment
  HSC46017  Lotus corniculatus Catherine Chin 1978-8-5 100 Humboldt Arcata, side road on Spring St., between 16th and 17th Sts. Comment
  UC1223436  Lotus crassifolius var. crassifolius Joseph P. Tracy 1936-6-9 14914 Humboldt near Panther Gap (on the Bull Creek-Mattole Road) 609 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
  SEINET3696599 Image available Lotus douglasii Joseph P. Tracy 1911-7-6 3358 Humboldt Road between Three Creeks and mouth of Willow Creek 762 Comment
  UC1052471  Lotus formosissimus H. E. and S. T. Parks Jun 1952 24449 Humboldt Spruce Cove Trinidad 60 Comment
  UC1197310  Lotus formosissimus J. P. Tracy 1901-6-30 1200 Humboldt immeditate vicinity Eureka 0 Comment
  UC169330  Lotus humistratus Joseph P. Tracy 1912-7-26 3833 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1197295  Lotus micranthus J. P. Tracy 1901-6-23 1179 Humboldt immediate vicinity Eureka 0 Comment
  UC1947582  Lotus oblongifolius var. oblongifolius Joseph P. Tracy 1919-5-31 5176 Humboldt near, at Lack Pond Willow Creek; Northern Coast Ranges, Trinity River Valley, Lack Pond 152 Comment
  UC303189  Lotus purshianus var. purshianus Joseph P. Tracy 1923-6-17 6266 Humboldt Dows Prairie Northern Coast Ranges 60 Comment
  RSA406270  Lotus unifoliolatus Bonnie C. Templeton 1931-10-15 s.n. Humboldt Eureka Comment
  HSC25999  Lotus unifoliolatus var. unifoliolatus Thomas W. Nelson 1970-9-3 218 Humboldt Mad River. Comment
  HSC57342  Lotus unifoliolatus var. unifoliolatus Overton, Butler 1979-7-26 10118 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  UC495720  Lotus yollabolliensis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8945 Humboldt near Blake Lookout (along summit South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1737 Comment
  UC1196934  Ludwigia palustris Joseph P. Tracy 1923-6-27 6383 Humboldt shore of Lack Pond (opposite mouth of Willow Creek); Northern Coast Ranges, Trinity R. Valley, Lack Pond 182 Comment
  UC1223213  Luina hypoleuca Joseph P. Tracy 1947-6-21 17716 Humboldt along Trinity Highway Willow Creek Canyon Comment
  CAS-BOT-BC201189  Lupinus Volney Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  UC726370  Lupinus A. A. Heller 1923-7-8 13774 Humboldt near Fortuna; near Fortuna Comment
  HSC97955  Lupinus adsurgens Cara Witte, Michael Scott 2007-6-22 349 Humboldt Board Camp Mountain, jeep trail between Tri Board Camp and Fork Camp 1565 Comment
  RSA406972  Lupinus albicaulis var. albicaulis H. M. Pollard 1947-8-9 s.n. Humboldt Roadside west of Orleans Comment
  UC48706  Lupinus albicaulis var. shastensis Hilda W. Grinnell 1932-7-22 39 Humboldt on slope below U.S.G.S. signal rock, South Fork Mountain (ne slope of South Fork Mountain); ne slope of South Fork Mt. 1767 Comment
  HSC14779  Lupinus arboreus Francis Winter 1960-5-6 Humboldt Little River State Park, N of Arcata Comment
  HSC90219  Lupinus arboreus L. Watson, J. Meninga Aug 1990 7 Humboldt Near Manilla. Mad River Slough and Dunes. 30 yds. N of parking lot, W side of trail. Comment
  UC1223260  Lupinus arboreus Joseph P. Tracy 1934-7-21 13482 Humboldt Samoa Sand Dunes Comment
  RSA296803  Lupinus bicolor subsp. microphyllus Lincoln Constance 1934-5-26 664 Humboldt S. Ford of eel River, S. end of Dyerville Bridge. 46 Comment
  CAS-BOT-BC205382  Lupinus elmeri Charles Piper Smith 1947-7-14 47668 Humboldt Blake Lookout Road, South Fork Mountain, 0.3 miles north of Hyampom trail sign Comment
  SEINET10841279  Lupinus elmeri Charles Piper Smith 1947-7-14 Smith 47668 Humboldt Blake lookout rd., S fork mountain, 0.3 mi. N of hyampom trail sign. Comment
  UC1223282  Lupinus formosus Joseph P. Tracy 1941-9-1 16997 Humboldt Blue Lake Comment
  HSC58640  Lupinus latifolius G. L. Clifton, Griswold 1979-7-31 11636 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC58662  Lupinus latifolius subsp. viridifolius G. L. Clifton, Griswold 1979-8-1 11995 Humboldt Near High Spring, close to the town of Hoopa. 1798 Comment
  UC169334  Lupinus latifolius var. latifolius Joseph P. Tracy 1912-7-26 3863 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC503000  Lupinus latifolius var. latifolius Joseph P. Tracy 1932-7-12 10435 Humboldt open ground at Corral Prairie (Trinity Summit); Klamath Mountains, , Corral Prairie 1524 Comment
  UC1223254  Lupinus littoralis Joseph P. Tracy 1938-6-16 15940 Humboldt Brainards Point, along highway between Eureka and Arcata Comment
  JEPS61938  Lupinus onustus Joseph T. Gregory 1935-7-24 740 Humboldt open places at Corral Prairie; Trinity Summit, open places at Corral Prairie 1584 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
  UC1197251  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1907-6-25 2576 Humboldt mouth Elk River (region about Humboldt Bay); Northern Coast Region, Humboldt Bay region, Elk River 0 Comment
  UC503019  Lupinus rivularis Joseph P. Tracy 1927-6-18 8189 Humboldt Capetown; Northern Coast Ranges, Capetown 304 Comment
  HSC70225  Luzula comosa M. A. Baker 1980-6-8 1886 Humboldt Near Buck Flat. 1554 Comment
  HSC71599  Luzula comosa M. A. Baker 1980-6-26 2412 Humboldt Near Sims Creek 610 Comment
  UC1103677  Luzula comosa Joseph P. Tracy 1901-5-21 1101 Humboldt at Eureka; Northern Coast Region, at Eureka 0 Comment
  HSC49098  Luzula comosa J. O. Sawyer 1977-4-23 2838 Humboldt Along Bald Hills Rd. E of Hoopa Comment
  HSC61636  Luzula comosa Ruby Van Deventer 1959-6-29 Humboldt Humboldt-Del Norte county line, Onion Lake 1220 Comment
  HSC77385  Luzula comosa L. P. Janeway 1983-5-29 321 Humboldt Along Jolly Giant Creek, E of HSU campus 61 Comment
  UC1103680  Luzula parviflora Joseph P. Tracy 1925-6-7 7056 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 609 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
  HSC102061  Luzula parviflora subsp. parviflora M. R. Mesler, Robin Bencie, K. A. Wayman 2011-7-12 1162 Humboldt Patterson Meadows 1566 Comment
  UC1239797  Lycopodiella inundata Joseph P. Tracy 1938-7-6 16022 Humboldt Big Lagoon 6 Comment
  OBI1067  Lycopodium clavatum Lawrence L. Kiefer 1964-5-20 1435 Humboldt Near Trinidad, one mile E of Moonstone Beach on Kuntz property 91 Comment
  CHSC96440  Lycopus uniflorus Gordon Leppig 1997-8-3 640 Humboldt Big Lagoon County Park, Big Lagoon Bog. UTM Zone 10 NAD 1927, 405321E 4557202N. 3 Comment
  UC577390  Lycopus uniflorus Joseph P. Tracy 1934-7-30 13513 Humboldt along coast in front of S. End of Stone Lagoon (Dry Lagoon) 3 Comment
  UC179917  Lysichiton americanus Joseph P. Tracy 1914-9-13 4627 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  HSC35500  Lysichiton americanus Petrovich May 1961 Humboldt Warren Cr. Comment
  HSC91595  Lysichiton americanus E. Mackey 1986-10-7 Humboldt Patrick's Point State Park, near park entrance Comment
  SEINET10465778  Lysichiton americanus Sacks 1977-4-8 SACKS 5 Humboldt 0.2 mi W of Highway-101 and 5 mi. N of Trinidad 61 Comment
  CAS-BOT-BC343019  Madia gracilis Joseph P. Tracy 1934-7-18 13432 Humboldt North Coast Ranges. Grouse Mountain 1524 Comment
  CAS-BOT-BC343024  Madia gracilis Doris K. Kildale 1927-7-1 3619 Humboldt Alton Hill 30 Comment
  HSC58359  Madia gracilis Overton, Butler 1979-8-2 12706 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC99542  Madia gracilis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 207 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS7387  Madia gracilis Joseph P. Tracy 1932-7-13 10494 Humboldt at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC176779  Madia gracilis Joseph P. Tracy 1908-6 2694 Humboldt opposite Buck Mountain; Valley of Van Duzen River 762 Comment
  RSA134601  Mahonia nervosa P. C. Everett, E. K. Balls 1959-10-25 23966 Humboldt 8.8 mi. ne. from Blue Lake, U.S. Hwy 299, Arcata to Willow Creek. 274 Comment
  CHSC32860  Maianthemum dilatatum Lora L. Anderson 1981-4-26 1 Humboldt Ca. 5 m n on Clam Beach Rd, 0.5 km e of Hwy 101, 9.5 mi n of Arcata. 0 Comment
  UC15043  Maianthemum dilatatum J. P. Tracy 1901-5-5 1064 Humboldt immediate vicinity Eureka 0 Comment
  UCD139044  Maianthemum dilatatum Linda M. Barker 1976-5-13 1484 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC508510  Maianthemum dilatatum O. Con Mary 1921-9-26 s.n. Humboldt Eureka Comment
  CAS-BOT-BC508513  Maianthemum dilatatum Ira L. Wiggins 1957-6-19 14131 Humboldt Trinidad Comment
  CDA39348  Maianthemum dilatatum Gordon Leppig 1998-5-11 760 Humboldt Northern California Peatlands; Big Lagoon County Park. Big Lagoon Bog. Comment
  RSA376911  Maianthemum dilatatum T. Gertrude Williamson 1924-7-11 s.n. Humboldt Arcata Comment
  HSC15642  Maianthemum racemosum subsp. amplexicaule Paul Shields May 1955 Humboldt 7 mi. W of Hoopa Comment
  HSC48751  Maianthemum stellatum Brad Klipfel 1973-6-10 77 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC56979  Maianthemum stellatum Overton, Butler 1979-7-23 9516 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC98156  Maianthemum stellatum W. D. Stevens 1964-5-16 9 Humboldt 1.0 mi. N of Kneeland School Comment
  CAS-BOT-BC347412  Malacothrix floccifera Marcus E. Jones 1931-7-16 29095 Humboldt Junction, East of Arcata Comment
  UC204742  Malacothrix floccifera Joseph P. Tracy 1918-7-6 5049 Humboldt near Humboldt-Mendocino County line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  JEPS36629  Malacothrix floccifera Lincoln Constance 1934-6-22 777 Humboldt Bull Creek road to mouth of Bull Creek (and up Bull Creek); South Fork Eel River, Bull Creek Region Comment
  SEINET4929765  Marah fabacea Unknown 2002-8-22 90 Humboldt Along Fischer Road 0.25mi N of the Mad River. Comment
  HSC73934  Marah oregana Gail Newton 1980-6-28 683 Humboldt Near Mad River Butte. 1536 Comment
  HSC97635  Marah oregana Cara Witte 2007-6-4 181 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  JEPS42470  Marah oregana W. L. Jepson 1932-7-24 16377 Humboldt near Camp Grant; Eel River 91 Comment
  UC249510  Marah oregana Joseph P. Tracy 1922-4-30 6035 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC93221  Marah oregana Gordon Leppig 1998-3-16 720 Humboldt McKinleyville, near end of Fischer Ave. at the Hammond Trail entrance 18 Comment
  JEPS42487  Marah oregana W. L. Jepson 1897-7-31 14136 Humboldt De Haven to Fort Bragg Comment
  CAS-BOT-BC67837  Marsilea vestita H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans Comment
  POM174059  Matricaria occidentalis Joseph P. Tracy 1918-6-16 4955 Humboldt Northern Coast Ranges: Eureka; old logging camp 0 Comment
  UC1197424  Medicago lupulina Joseph P. Tracy 1911-7-10 3493 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC1197427  Medicago polymorpha Joseph P. Tracy 1934-4-14 13175 Humboldt Eureka 30 Comment
  HSC14971  Medicago polymorpha R. T. Forester 1963-3-29 50 Humboldt 1/4 mi. N of Fairhaven on Samoa Rd. Comment
  CAS-BOT-BC271172  Melica aristata Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  POM161909  Melica californica var. nevadensis Joseph P. Tracy 1921-5-30 5491 Humboldt Kneeland Prairie. 762 Comment
  UC1132276  Melica harfordii H. L. Person 1932-5-12 Humboldt 10 mi n Garberville (Redwood Highway); Briceland Quad. Comment
  UCD87511  Melica harfordii August L. Hormay 1932-5-12 s.n. Humboldt Bull Creek Road. Comment
  SEINET10860833  Melica stricta Joseph P. Tracy 1935-7-28 Tracy 14333 Humboldt Shell rock slopes. Trinity Summit. Rocky Exposed Places, Head of Brett Hole. 1829 Comment
  UC526916  Melica subulata Joseph P. Tracy 1926-5-22 7503 Humboldt Prairie Creek; Northern Coast Ranges 152 Comment
  UCSC000054  Melica subulata August L. Hormay 1932-5-11 s.n. Humboldt Korbel Comment
  HSC14998  Melilotus albus D. K. Smith 1968-2-2 5 Humboldt On the bank of Crannell Rd. past the bridge Comment
  HSC25761  Melilotus officinalis Jana Kattenhorn 1970-10-14 45 Humboldt Big Lagoon Comment
  UC577360  Mentha pulegium Joseph P. Tracy 1923-6-20 6336 Humboldt Briceland 304 Comment
  JEPS63445  Mentha suaveolens W. L. Jepson 1936-8-11 17866 Humboldt South Fork Eel River Philipsville (Philipsville); South Fork Eel River Comment
  HSC32553  Mentzelia dispersa Thomas W. Nelson 1973-7-10 1033 Humboldt Humboldt-Trinity Co. line, Mt. Lassic (Signal Pk.) 1790 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
  UC1225906  Menziesia ferruginea Joseph P. Tracy 1947-5-24 17687 Humboldt Big Lagoon 15 Comment
  HSC7849  Menziesia ferruginea subsp. ferruginea J. C. Reppas 1963-4-20 33 Humboldt 1 mi. N of Fickle Hill Rd. Comment
  POM202654  Micropus californicus M. S. Jussel 1931-5-2 s.n. Humboldt 25 miles N of Garberville Comment
  HSC71162  Micropus californicus var. californicus Thomas W. Nelson, Jane P. Nelson 1977-5-30 3408 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  HSC98317  Micropus californicus var. californicus H. E. Parks 1930-5-25 872 Humboldt Laribee Valley 762 Comment
  CAS-BOT-BC348503  Micropus californicus var. californicus S. K. Harris; J. P. Tracy 1942-6-15 s.n. Humboldt Harris Road, 1 mile east of Garberville 30 Comment
  UC468880  Microseris bigelovii J. P. Tracy 1900-6-5 839 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC348948  Microseris douglasii subsp. douglasii Joseph P. Tracy 1929-5-5 8560 Humboldt Miranda. Along South Fork of Eel River 121 Comment
  RSA167395  Microseris douglasii subsp. douglasii Joseph P. Tracy 1950-7-6 19001 Humboldt 2 miles south of Burr Valley, on the Albee Road. 1159 Comment
  CAS-BOT-BC322681  Microseris laciniata Harley P. Chandler 1901-6-1 1408 Humboldt Klamath River 243 Comment
  HSC60080  Microseris laciniata M. A. Baker 1978-5-6 497 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  UC582738  Microseris laciniata subsp. laciniata Joseph P. Tracy 1934-7-6 13661 Humboldt at Sibley Ranch (Iaqua); , at Sibley Ranch 609 Comment
  CAS-BOT-BC349240  Microseris nutans Joseph P. Tracy 1930-7-16 8900 Humboldt South Fork Mountain. Near McKay Camp 1676 Comment
  CHSC57439  Microsteris gracilis L. P. Janeway 1984-6-23 898 Humboldt Titlow Hill. 1478 Comment
  HSC99590  Microsteris gracilis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 259 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
  UC147913  Mimulus alsinoides Joseph P. Tracy 1908-6-8 2634 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1196833  Mimulus arvensis Joseph P. Tracy 1925-5-25 13897 Humboldt Dobbyn Creek 152 Comment
  LA209133  Mimulus aurantiacus C. C. & S. K. Harris; 1936-6-9 sn Humboldt Above Carlotta 60 Comment
  HSC20685  Mimulus aurantiacus var. aurantiacus Steve Dorei 1970-10-31 132 Humboldt Scotia bluff area, N side of railroad tracks. Comment
  HSC20691  Mimulus aurantiacus var. aurantiacus S. J. Hawks 1965-5-18 83 Humboldt Clam Beach. Comment
  SFV15855  Mimulus aurantiacus var. aurantiacus D. M. Thompson 1992-6-6 1116 Humboldt 0.8 miles south of Highway 101 interchange access road (to Trinity Town) along road to Luffenholtz Beach. East side of road on steep bank. 50 Comment
  HSC102505  Mimulus breweri M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1490 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC75454  Mimulus breweri J. O. Sawyer 1980-7-18 3591 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  SEINET3365865 Image available Mimulus breweri Joseph P. Tracy 1932-7-10 10375 .5 Humboldt Trinity Summit Corral Prairie in wet meadow 1585 Comment
  UC1196791  Mimulus douglasii Joseph P. Tracy 1922-5-29 6079 Humboldt head South Yager Creek; Northern Coast Ranges 762 Comment
  UC175712  Mimulus douglasii Joseph P. Tracy 1913-6-19 4208 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC176955  Mimulus grandis Joseph P. Tracy 1912-6-16 3704 Humboldt region about Humboldt Bay (Hookton); Northern Coast Region 0 Comment
  BLMAR73  Mimulus guttatus Jennifer Anthony-Wheeler 1994-5-25 73 Humboldt King range, growing along lighthse rd 1/4 mi from Mattole beach 6 Comment
  HSC45271  Mimulus guttatus M. Alcasas 1978-6-3 116 Humboldt On Titlow Hill Rd., 1.3 mi. from Hwy. 299 1463 Comment
  RSA14135  Mimulus guttatus Elmer I. Applegate 1923-9-10 3995 Humboldt Stone Lagoon. Comment
  UC175794  Mimulus guttatus Joseph P. Tracy 1912-6-16 3704 Humboldt region about Humboldt Bay (Hookton); Northern Coast Region 0 Comment
  UC1222801  Mimulus inodorus Joseph P. Tracy 1950-8-8 19283 Humboldt Croghan Hole Trinity Summit 1676 Comment
  UC147880  Mimulus inodorus Joseph P. Tracy 1908-6 2697 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  JEPS10468  Mimulus microphyllus Joseph P. Tracy 1933-6-6 12501 Humboldt Trinidad 3 Comment
  UC147923  Mimulus microphyllus Joseph P. Tracy 1908-6 2826 Humboldt nw slope Buck Mountain; Northern Coast Ranges 1219 Comment
  HSC102538  Mimulus moschatus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1524 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC79337  Mimulus nanus var. nanus D. K. Imper 1982-6-30 Humboldt Near Goat Hill; adjacent to lakes Comment
  JEPS4667  Mimulus pulsiferae Harold E. Parks and Joseph P. Tracy 1934-6-27 11087 Humboldt Grouse Mt. 1432 Comment
  HSC4054  Minuartia douglasii Lincoln Constance 1934-5-29 732 Humboldt Upper Look Prairie; South Fork Eel River 366 Comment
  HSC73077  Minuartia douglasii M. A. Baker 1980-5-18 1334 Humboldt Near Black Mtn. 792 Comment
  SEINET11943609  Minuartia douglasii H. P. Chandler 1901-1 1454 Humboldt Klamath River 305 Comment
  UC1223239  Minuartia douglasii Joseph P. Tracy 1950-7-6 18993 Humboldt 2 mi s Burr Valley (on the Albee Rd, Bridgeville to Blocksburg) 1158 Comment
  HSC40009  Minuartia nuttallii subsp. gregaria Thomas W. Nelson, Jane P. Nelson 1976-7-1 2905 Humboldt Along ridge N of Bear Creek. 1463 Comment
  HSC99403  Mitella trifida var. trifida K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 52 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1197971  Modiola caroliniana Joseph P. Tracy 1942-5-16 17333 Humboldt Garberville 152 Comment
  HSC36497  Moehringia macrophylla Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1894 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  HSC74566  Moehringia macrophylla M. A. Baker 1980-5-17 1278 Humboldt Near Le Perron Peak 1066 Comment
  HSC97645  Moehringia macrophylla C. Witte 2007-5-17 27 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. Near utility towers. 1483 Comment
  SEINET3996427 Image available Monardella odoratissima Joseph P. Tracy 1926-6-20 7657 Humboldt Horse Mountain 2225 Comment
  UC176998  Monardella odoratissima subsp. glauca Joseph P. Tracy 1912-7-31 3928 Humboldt Near summit Buck Mountain; Northern Coast Ranges 1676 Comment
  HSC57898  Monardella odoratissima subsp. pallida Overton, Butler 1979-7-31 11478 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC58101  Monardella odoratissima subsp. pallida G. L. Clifton, Griswold 1979-8-1 12032 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC577394  Monardella villosa subsp. villosa Joseph P. Tracy 1937-7-11 15426 Humboldt Vicinity Garberville 121 Comment
  RSA52284  Monotropa uniflora D. Meadows 1950-7-21 a.n. Humboldt Near Bear Trap on Irvine Trail, Prairie Creek State Park. Comment
  CAS-BOT-BC444801  Montia diffusa Lincoln Constance; Alan A. Beetle; Joseph P. Tracy 1940-5-17 2615 Humboldt Above Van Duzen River, 1 mile below Dinsmore's. 762 Comment
  CAS-BOT-BC233770  Montia howellii Joseph P. Tracy 1916-5-7 4686 Humboldt Eureka 60 Comment
  UC183598  Montia linearis Joseph P. Tracy 1913-5-4 4067 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC445150  Montia parvifolia H. D. Ripley; R. C. Barneby 1945-6-15 6806 Humboldt Trinidad Head 15 Comment
  HSC31552  Montia parvifolia Glenn McGourty 1974-5-11 41 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  HSC55129  Montia parvifolia G. L. Clifton, Terry Griswold 1979-8-1 11934 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  CAS-BOT-BC445153  Montia parvifolia Joseph P. Tracy 1933-5-20 12215 Humboldt Wild Cat [Wildcat] Ridge, south of Ferndale 304 Comment
  UCD110310  Morella californica T. I. Storer 1931-7-1 2220 Humboldt Near Samoa. Comment
  UC1145147  Muhlenbergia mexicana Joseph P. Tracy 1916-9-5 4774 Humboldt 4 mi. above mouth of S. Fork Eel R.; S. Fork Eel R. 60 Comment
  UCD86804  Muhlenbergia mexicana Joseph P. Tracy 1918-9-29 5115 Humboldt South Fork of Eel River, 4 miles above the mouth. 60 Comment
  HSC3730  Myosotis sylvatica William J. Ferlatte 1963-5-17 48 Humboldt Near 11th and B Sts., Arcata Comment
  UC722454  Myrica californica C. L. Hitchcock 1939-7-14 5437 a Humboldt bluffs facing sea at Shelter Cove Comment
  HSC13475  Myriophyllum sibiricum R. L. Jarvis 1962-4-29 24 Humboldt Clam Beach Lagoons, .5 mi. S of Little River on Hwy. 101 0 Comment
  UC1152040  Nassella pulchra A. H. Murphy 1951-3-30 Humboldt along roadside near Mattole River Grange Hall; Mattole Valley Comment
  HSC100457  Nasturtium curvisiliqua Carl C. Marshall May 1885 45 Humboldt Peninsula near marsh. Comment
  RSA43883  Navarretia atractyloides H. M. Pollard 1948-8-5 s.n. Humboldt Orleans Comment
  UC162572  Navarretia atractyloides Joseph P. Tracy 1911-7-4 3302 Humboldt along Willow Creek (tributary of Trinity River) near its mouth Northern Coast Ranges, Trinity River, Willow Creek 182 Comment
  JEPS70296  Navarretia divaricata Joseph P. Tracy 1930-7-23 9119 Humboldt Horse Mountain Northern Coast Ranges 1432 Comment
  HSC44287  Navarretia divaricata J. P. Smith, Steve Selva 1970-6-30 4098 Humboldt Comment
  HSC99451  Navarretia divaricata subsp. divaricata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 101 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
  UC908394  Navarretia divaricata subsp. vividior Joseph P. Tracy 1934-7-9 13326 Humboldt n of Bell Springs; Northern Coast Ranges, Chamise Mt. 1066 Comment
  RSA15549  Navarretia mellita C. B. Wolf 1927-8-30 1250 Humboldt 3 miles S of Thorn3 miles S of Tom's Place Comment
  HSC17150  Navarretia squarrosa David Adams 1960-7-15 Humboldt Near Fort Humboldt monument, Eureka. 15 Comment
  UC1222711  Navarretia tagetina Joseph P. Tracy 1950-6-15 18826 Humboldt near (on ne side) Huestis Rock; Mail Ridge Comment
  JEPS70478  Navarretia tagetina W. L. Jepson 1932-7-24 16386 Humboldt above Eel Rock; Mail Ridge 762 Comment
  UC582689  Navarretia viscidula Joseph P. Tracy 1937-7-11 15420 Humboldt vicinity Garberville 121 Comment
  UC169029  Nemacladus capillaris Joseph P. Tracy 1908-6 2842 Humboldt nw slope Buck Mountain; Northern Coast Ranges 1219 Comment
  UC582718  Nemophila heterophylla Joseph P. Tracy 1937-5-17 15292 Humboldt Willow Creek , at Willow Creek (Trinity River Valley) 152 Comment
  UC562583  Nemophila menziesii var. atomaria Joseph P. Tracy 1926-5-9 7464 Humboldt Valley of South Yager Creek 762 Comment
  JEPS1882  Nemophila menziesii var. atomaria Joseph P. Tracy 1927-4-17 7903 Humboldt 274 Comment
  HSC76196  Nemophila parviflora Overton, Butler 1979-7-24 9799 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  UC67161  Nemophila parviflora Harley P. Chandler May, 1901 1270 A Humboldt North Coast Ranges 152 Comment
  CAS-BOT-BC231216  Nemophila parviflora var. austiniae Marck Menke 1999-5-31 32 Humboldt Redwood National Park, near Tall Trees Grove Comment
  RSA254745  Nemophila parviflora var. parviflora Thomas W. Nelson, James Nelson 1973-5-28 934 Humboldt McKeown Ranch north of Dinsmore. Comment
  UC198657  Nemophila pedunculata Joseph P. Tracy 1917-4-29 4779 Humboldt Eureka Northern Coast Ranges, at Eureka 0 Comment
  HSC47951  Noccaea fendleri subsp. glauca Brad Klipfel 1974-5-27 387 Humboldt Horse Mtn. Comment
  UC902226  Nothochelone nemorosa Joseph P. Tracy 1948-8-15 18138 Humboldt on Ridge 2 mi e of Grove's Prairie (Trinity Summit); Trinity Summit 1524 Comment
  UCSB1031  Notholithocarpus densiflorus Muller, Cornelius 1954-6-21 Humboldt 8 mi. ESE of Mad River on road to Forest Glen Comment
  HSC40934  Nuttallanthus texanus Linda M. Barker 1976-4-30 1408 Humboldt 3 mi. W of Arcata Comment
  HSC38297  Oemleria cerasiformis Thomas W. Nelson 1976-3-22 2276 Humboldt Beside Eureka Muni. Golf Course Comment
  UC1222314  Oemleria cerasiformis Joseph P. Tracy 1951-6-21 19514 Humboldt opposite Willow Creek; Trinity Valley Comment
  CDA38487  Oenanthe sarmentosa Tario 1932-9-27 s.n. Humboldt Arcata. 0 Comment
  HSC23225  Oenanthe sarmentosa Thomas O. Erickson 1971-10-28 1 Humboldt Luffenholtz Beach off Hwy. 101 N of Moonstone Comment
  SEINET10964717  Oenanthe sarmentosa Charlene A. Bennett, David B. Dunn; Chester T. Dziekanowski 1976-8-6 Bennett 481 Humboldt Collected by Hwy. 101, N side of Orick. 30 Comment
  RSA44496  Oenothera glazioviana H. M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region. Comment
  CAS-BOT-BC171604  Oenothera wolfii Carl B. Wolf 1937-9-9 9307 Humboldt Coast, 2 mi. so. of Cape Mendocino 6 Comment
  UC1196945  Oenothera wolfii Joseph P. Tracy 1934-8-24 13598 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC102042  Oreostemma alpigenum var. andersonii M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 945 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  UC906645  Orogenia fusiformis Joseph P. Tracy 1942-6-23 17252 Humboldt near top Trinity Summit (w. of Water-Dog Lakes) 1828 Comment
  HSC104436  Orthilia secunda Bianca Hayashi 2013-6-18 Humboldt Northwest of Snow Camp Mountain Comment
  RSA80294  Orthocarpus faucibarbatus F. W. Peirson, Mabel B. Peirson 1923-7-11 3849 Humboldt 7 miles N of Arcata. Comment
  HSC99532  Orthocarpus imbricatus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 196 Humboldt Near North Trinity Mtn and Water Dog Lakes, Six Rivers National Forest. 1826 Comment
  HSC21585  Osmorhiza purpurea T. W. Beck 1963-5-10 49 Humboldt Camp Bauer, Korbel Comment
  BLMAR235  Oxalis Jennifer Anthony-Wheeler 1996-9-26 235 Humboldt King range, growing creekside of bear creek btween campgrounds 548 Comment
  HSC33742  Oxalis articulata subsp. rubra John Palmer 1975-5-24 374 Humboldt Samoa Dunes, off Samoa Blvd. across from the boat landing Comment
  SEINET3347445 Image available Oxalis corniculata Joseph P. Tracy 1912-6-9 3682 Humboldt Alton 30 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
  UC1103421  Oxalis oregana Joseph P. Tracy 1926-7-5 7721 Humboldt near Redwood House (head of Grizzle Creek, towards South Yager); Northern Coast Ranges 609 Comment
  HSC64217  Oxalis trilliifolia J. O. Sawyer, M. A. Ericksen 1979-6-23 3384 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  UC1196179  Paeonia brownii Joseph P. Tracy 1913-6-16 4146 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  SEINET10609310  Panicum capillare var. brevifolium A. Arthur Heller 1924-7-20 Heller 13864 Humboldt Occasional in sand along the El River at Phillipsville, in the redwood belt. Comment
  UC526843  Panicum oligosanthes var. scribnerianum Joseph P. Tracy 1931-5-17 9428 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC594151  Parapholis incurva S. K. Harris, J. P. Tracy 1936-6-6 3218 Humboldt Eureka, near railroad station Comment
  CAS-BOT-BC253924  Parapholis incurva S. K. Harris; J. P. Tracy 1936-6-6 3218 Humboldt Near railroad station, Eureka Comment
  RSA286349  Parentucellia viscosa Robert F. Thorne 1974-7-29 45075 Humboldt Samoa Dunes. Comment
  HSC20910  Parentucellia viscosa R. Spellenberg 1964-6-15 408 Humboldt 0.5 mi. S of Humboldt Hill exit, 5 mi. S of Eureka Comment
  UC249586  Paxistima myrsinites Joseph P. Tracy 1921-6-19 5835 Humboldt mt. slopes along rd. between Three Creeks and mouth of Willow Creek; Northern Coast Ranges, Three Creeks 670 Comment
  UC1239631  Pectocarya penicillata Joseph P. Tracy 1911-7-10 3484 Humboldt near mouth Willow Creek; Valley of Trinity River 152 Comment
  UC1239629  Pectocarya pusilla Joseph P. Tracy 1926-5-2 7428 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC20924  Pedicularis densiflora D. E. Anderson 1962-5-1 2202 Humboldt 1 mi. W of Hoopa Comment
  JEPS60059  Pellaea andromedifolia Willis G. Corbitt 1933-4-9 Humboldt Scotia Bluffs Comment
  UC1245390  Penstemon anguineus Joseph T. Gregory 1935-7-23 722 Humboldt lower end of Brett Hole Trinity Summit, lower end of Brett Hole 1584 Comment
  HSC100680  Penstemon azureus Carl C. Marshall 461 Humboldt Near P. Asbills, S Humboldt. Comment
  HSC74482  Penstemon deustus Gail Newton 1980-7-24 1767 Humboldt Near Somes Mtn. 1615 Comment
  UC1222461  Penstemon heterophyllus Joseph P. Tracy 1936-6-17 14973 Humboldt at crossing of highway below Larrabee Valley (Little Van Duzen River); , below Larrabee Valley 713 Comment
  RSA33403  Penstemon heterophyllus subsp. purdyi Doris K. Kildale 1925-5-30 860 Humboldt Bucilana Bridge. Comment
  JEPS11633  Penstemon laetus var. sagittatus Joseph P. Tracy 1935-7-14 14073 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  UC577402  Penstemon laetus var. sagittatus Joseph P. Tracy 1933-7-25 12827 Humboldt Horse Mountain 1432 Comment
  NY604545  Penstemon laetus var. sagittatus F. W. Pennell 1940-7-7 26094 Humboldt Grouse Mountain, west of Salyer 1463.0 Comment
  HSC72988  Penstemon newberryi M. A. Baker 1980-7-23 3144 Humboldt Near Orleans Mtn. 1859 Comment
  RSA21443  Penstemon newberryi subsp. berryi Carl B. Wolf 1937-8-12 9207 Humboldt North Coast Range, South Fork Mountain, 0.6 miles S of Blake Lookout. 1677 Comment
  UC3355579  Penstemon rattanii J. G. Lemmon June 1882 Humboldt near Kneeland Prairie; near Kneeland Prairie Comment
  RSA21653  Penstemon rattanii subsp. rattanii Carl B. Wolf 1937-6-14 8808 Humboldt North Coast Range, junction of Eureka - Kneeland Road and Maple Creek Road. 683 Comment
  HSC1079  Pentagramma triangularis Jack Rockwell 1962-4-29 42 Humboldt S Bank of Van Duzen River, E of Hwy. 101 9 Comment
  UC1197127  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1936-8-17 15152 Humboldt 2 mi s Fields Landing; Northern Coast Region, Region about Humboldt Bay 9 Comment
  UC1197128  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1937-8-22 15673 Humboldt foothills 3 mi s Fields Landing; Northern Coast Ranges, around Humboldt Bay 15 Comment
  JEPS14223  Perideridia howellii Joseph P. Tracy 1930-10-26 9237 Humboldt Valley of South Yager Creek 762 Comment
  UC1197324  Perideridia kelloggii Joseph P. Tracy 1921-10-2 5967 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC184323  Perideridia kelloggii Joseph P. Tracy 1912-8-3 3967 Humboldt Dinsmore's Ranch Northern Coast Ranges, valley of Van Duzen River (opposite Buck Mt.) 762 Comment
  HSC98755  Perideridia oregana Cara Witte 2007-7-27 602 Humboldt Forest Service Road 4N32. 1.4 miles north of intersection with Forest Service Road 4N32B. 1560 Comment
  CDA8459  Petasites frigidus var. palmatus E. C. Whitney 1964-4-1 Humboldt Kneeland. 0 Comment
  JEPS11985  Phacelia bolanderi Rimo Bacigalupi with G. T. Robbins 1954-6-28 4657 Humboldt 2 mi n Hoopa; Hoopa Indian Reservation, Trinity River 91 Comment
  SD90173  Phacelia bolanderi Benjamin C. Stone 1952-6-25 124 Humboldt Hwy 101, 15 mi south of Klamath 14 Comment
  UC666549  Phacelia bolanderi G. L. Stebbins Jr. 1942-6-1 3275 Humboldt along river 2 mi n Orleans; Klamath River Comment
  BLMAR633  Phacelia heterophylla subsp. virgata Jennifer Wheeler 2011-6-15 633 Humboldt Lacks Creek, Junction of midslope road, firewood cutting area road and Pine Ridge Road 957 Comment
  HSC57855  Phacelia mutabilis G. L. Clifton 1979-7-31 11371 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC75450  Phacelia mutabilis J. O. Sawyer 1980-7-18 3587 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC1222899  Phacelia mutabilis Joseph P. Tracy 1951-6-26 19564 Humboldt Snow Camp 1402 Comment
  UC1222900  Phacelia mutabilis Joseph P. Tracy 1950-6-15 18778 Humboldt 5 mi n Harris; Mail Ridge Comment
  UC1103763  Phalaris arundinacea Joseph P. Tracy 1934-10-21 13695 Humboldt along coast in front of south end Stone Lagoon (Dry Lagoon); in front of South End Stone Lagoon, Dry Lagoon 3 Comment
  RSA10051  Phalaris californica Joseph P. Tracy 1925-6-7 7085 Humboldt On Lord Ellis Road, on Bald Mountain 610 Comment
  UC526833  Phalaris californica Joseph P. Tracy 1925-6-7 7085 Humboldt Lord-Ellis Road Bald Mt.; North Coast Ranges, Bald Mt. 609 Comment
  UC207582  Phalaris paradoxa Joseph P. Tracy 1916-5-31 4700 Humboldt along Eel River from South Fork to Scotia Holmes Flat; Northern Coast Ranges, along Eel River 60 Comment
  HSC81658  Philadelphus californicus Thomas W. Nelson, Jane P. Nelson 1980-7-13 6063 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  SDSU904  Philadelphus lewisii Harvey 1938-8-14 2335 Humboldt US 299 Comment
  UC183571  Philadelphus lewisii Joseph P. Tracy 1912-7-4 3722 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC420417  Philadelphus lewisii P. E. Goddard 1907-6-10 #b. 119 Humboldt Van Duzen Comment
  HSC54708  Phleum alpinum Overton, Butler 1979-7-26 10055 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  UC188863  Phleum alpinum Joseph Burtt Davy 1899-7-30 6198 Humboldt Russ Ranch Comment
  HSC55333  Phlox adsurgens Griswold, Butler 1979-7-12 7177 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1191120  Phlox douglasii subsp. rigida Joseph P. Tracy 1933-7-25 12828 Humboldt Horse Mountain 1432 Comment
  JEPS71126  Phlox gracilis Joseph P. Tracy 1933-7-11 12699 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC604637  Phlox gracilis Joseph P. Tracy 1938-6-13 15923 Humboldt Cold Springs Grouse Mountain 1432 Comment
  HSC15921  Phoradendron serotinum subsp. tomentosum H. D. Sumner 1959-7-13 Humboldt Dirt road to Hoopa 305 Comment
  UC1103511  Phyllospadix torreyi Joseph P. Tracy 1917-5-30 4812 Humboldt ocean beach opposite Dows Prairie (probably derived from rocky shores n of Little River); Northern Coast Ranges Comment
  SEINET4090988  Physocarpus capitatus O. M. Clark 1932-1 5313 Humboldt South Eureka. Comment
  CAS-BOT-BC73441  Picea sitchensis William R. Dudley 1899-6-28 s.n. Humboldt Humboldt Bay peninsula opposite Eureka. Comment
  HSC1356  Picea sitchensis S. J. Hawks 1965-3-19 9 Humboldt 1/4 mi. W of Fairhaven Comment
  HSC31521  Picea sitchensis Steve Selva, Roger Jensen 1974-8-28 94 Humboldt Behind Humboldt State University, Arcata. Comment
  UC1134170  Picea sitchensis H. S. Yates 1936-6-16 5659 Humboldt 1 mi sw Samoa; Eureka Quad. 6 Comment
  UC1198274  Picea sitchensis J. P. Tracy 1901-4-14 1032 Humboldt sand hills of ocean beach at Samoa Samoa (opp. Eureka) Comment
  CAS-BOT-BC78288  Pinus attenuata A. A. Heller 1917-7-7 12811 Humboldt Alder Springs grade below Rattlesnake [spring] Spring Comment
  CAS-BOT-BC78376  Pinus contorta H. E. Parks; S. T. Parks 1938-3-1 24125 Humboldt Spruce Cove, Trinidad 60 Comment
  UCR36307  Pinus contorta R. M. Adams 1982-3-8 65-334 188 Humboldt along road edge near Agate Beach Campground, Patrick's Point State Park, 30 miles north of Eureka 46 Comment
  CAS-BOT-BC73151  Pinus jeffreyi Joseph P. Tracy; H. E. Parks 1934-6-14 11030 Humboldt Horse Mountain 1432 Comment
  HSC54535  Pinus jeffreyi Overton, Butler 1979-7-23 9485 Humboldt Near Horse Mtn. Creek 1326 Comment
  UCR139067  Pinus jeffreyi Gordon Leppig 1998-6-1 878 Humboldt Horse Mountain. Titlow Hill Road at Road to Horse Mountain Mine 1422 Comment
  HSC54525  Pinus monticola Overton, Butler 1979-7-23 9459 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  HSC55094  Pinus monticola G. L. Clifton, Griswold 1979-7-31 11797 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  CAS-BOT-BC79027  Pinus ponderosa Doris K. Kildale 1928-7-1 5314 Humboldt Klamath River at Orleans Comment
  CAS-BOT-BC136468  Piperia candida Harley P. Chandler 1901-6-1 1385 Humboldt Field redacted by CAS, contact the data manager for more information 304 Comment
  HSC104336  Piperia candida James Regan, Humboldt Redwood Co., LLC 2016-7-1 29 Humboldt Bear River, at Nelson and Harmonica Creeks. 40.38939 N, -124.084639 W; 427 Comment
  UC14938  Piperia elongata Mrs. M. H. Manning Jul 1901 Humboldt near Hupa; Eureka Trail Comment
  SEINET12075193  Piperia unalascensis H. P. Chandler 1901-1 1385 Humboldt North Coast Ranges, Hupa [Hoopa Valley] Indian Reservation 305 Comment
  UC1197758  Pityopus californicus Joseph P. Tracy 1925-7-5 7184 Humboldt High Prairie on Bald Mountain North Coast Ranges 1066 Comment
  HSC3765  Plagiobothrys nothofulvus Doris K. Kildale 1926-5-2 1891 Humboldt Willow Creek Rd., Horse Mtn. Divide Comment
  HSC63979  Plagiobothrys nothofulvus J. P. Smith, J. O. Sawyer 1973-5-12 6679 Humboldt 3.3 mi. from Redwood Creek on Hoopa Rd. Comment
  UCD120865  Plagiobothrys reticulatus H. E. Parks 1937-7-1 24042 Humboldt Spruce Cove, Trinidad. 64 Comment
  UC1222214  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-15 17142 Humboldt Miranda South Fork Eel River, Miranda 121 Comment
  UC1222217  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-2 17095 Humboldt one mi e Alton Comment
  UC1222220  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-15 17161 Humboldt 1 mi ne town [sic] Comment
  UC526823  Plagiobothrys reticulatus Joseph P. Tracy 1923-6-20 6340 Humboldt Miranda North Coast Ranges, Miranda 91 Comment
  UC1222202  Plagiobothrys scouleri Joseph P. Tracy 1949-6-20 18315 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  HSC16824  Plantago erecta R. T. Forester 1963-4-30 14 Humboldt 1 mi. S of Fairhaven on Samoa Rd. Comment
  HSC104158  Plantago erecta Andrea Pickart 2002-4-3 35 Humboldt Samoa Dunes, Eureka airport. 15 Comment
  HSC16844  Plantago lanceolata R. I. Bonn 1965-5-9 38 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC37930  Plantago lanceolata Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  HSC16834  Plantago lanceolata Francis Winter 1960-4-24 Humboldt 1 mi. N of Redwood Creek Ranch 396 Comment
  HSC67528  Plantago lanceolata J. P. Smith, Steve Selva 1970-6-14 3838 Humboldt Along Hwy. 96 at Whitmore Creek. 152 Comment
  HSC89612  Plantago lanceolata M. Roantree 1985-5-24 61 Humboldt E side of Trinidad Head Comment
  HSC99488  Plantago lanceolata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 147 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
  HSC71375  Plantago major J. P. Smith 1971-10-9 5022 Humboldt Banks and flood plain of the Mad River above the fish hatchery. 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
  HSC79381  Plantago maritima Kenneth Clark 1980-5-10 642 Humboldt Shelter Cove, bluffs of Point Delgada. 5 Comment
  POM312368  Plantago maritima Malcolm A. Nobs, S. Galen Smith 1949-8-3 1205 Humboldt 2 miles north of Eureka, bordering Humboldt Bay. Comment
  HSC53952  Platanthera dilatata Griswold, Butler 1979-7-11 7002 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC34285  Platanthera dilatata var. leucostachys Ken Irwin 1975-8-16 Humboldt Grogans Hole Area Comment
  HSC97555  Platanthera dilatata var. leucostachys Cara Witte 2007-6-1 174 Humboldt Along Forest Service 5N10. 1.5 miles east of intersection with National Forest 1. 1365 Comment
  JEPS49012  Platanthera sparsiflora Hilda W. Grinnell 1932-7-19 28 Humboldt boggy meadows near Camp McKay; So. Fork Mt. Comment
  HSC59196  Platystemon californicus Terry Roth 1979-5-24 80 Humboldt Samoa Dunes near the U.S. Coast Guard Station 5 Comment
  SEINET3124150 Image available Platystemon californicus Joseph P. Tracy 1904-5-1 2047 Humboldt Region about Humboldt Bay, sandy field at Bucksport 0 Comment
  UC146079  Platystemon californicus Joseph P. Tracy 1904-4-24 2034 Humboldt sand dunes of Ocean Beach Ocean Beach (Humboldt Bay); Northern Coast Region, , Ocean Beach Comment
  UC162915  Platystemon californicus Joseph P. Tracy 1911-5-27 3192 Humboldt sand dunes of Ocean Beach Ocean Beach (Humboldt Bay); Northern Coast Region, , Ocean Beach Comment
  UC169004  Plectritis brachystemon Joseph P. Tracy 1911-7-7 3381 1/2 Humboldt 3 mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC602532  Plectritis brachystemon Joseph P. Tracy 1936-7-5 15037 Humboldt North Coast Range, Grouse Mountain Grouse Mountain; North Coast Range, Grouse Mountain 1524 Comment
  UC602503  Plectritis brachystemon Joseph P. Tracy 1933-5-20 12250 1/2 Humboldt Northern Coast Ranges, Mattole Valley Mattole Valley; Northern Coast Ranges, Mattole Valley 60 Comment
  HSC21686  Plectritis congesta subsp. congesta J. R. Good 1964-5-3 37 Humboldt 0.10 mi. N of Fairhaven, 60 yds. W of road. Comment
  HSC75692  Pleuropogon refractus Bill Copeland 1980-6-26 303 Humboldt Near Murphy Meadow 914 Comment
  HSC94001  Pleuropogon refractus Tony LaBanca 2000-3-24 1001 Humboldt 680 Comment
  UC1145107  Pleuropogon refractus Joseph P. Tracy 1939-7-9 16334 Humboldt Snow Camp 1402 Comment
  UCD90102  Pleuropogon refractus Harley P. Chandler 1901-5-1 1107 Humboldt Humboldt Bay. 15 Comment
  RSA10119  Poa Joseph P. Tracy 1933-7-26 12911 Humboldt Grouse Mountain; North Coast Ranges 1524 Comment
  UC1607849  Poa annua Harold E. Parks June 1951 Humboldt Spruce Cove Trinidad Comment
  UC525629  Poa bolanderi Joseph P. Tracy Jul 16 1930-Jul 19 1930 8902 Humboldt McKay Camp South Fork Mt; Northern Coast Ranges 1676 Comment
  CAS-BOT-BC254897  Poa bulbosa Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River, Orleans Comment
  RSA44528  Poa bulbosa Henry M. Pollard 1948-7-17 s.n. Humboldt Banks of Klamath River, Orleans Comment
  CAS-BOT-BC255119  Poa confinis Joseph P. Tracy 1927-4-24 7947 Humboldt Eureka, near bay shore 9 Comment
  HSC33722  Poa confinis Dryden 1975-5-24 201 Humboldt Samoa Dunes off Samoa Blvd. across from boat landing. Comment
  UC569487  Poa douglasii H. S. Yates 1936-6-18 5726 Humboldt near mouth Little River; Eureka Quadrangle 4 Comment
  UC60806  Poa howellii Joseph Burtt Davy and Walter C. Blasdale 1899-6-9 5359 B Humboldt near Harris Harris Comment
  CAS-BOT-BC255850  Poa kelloggii Harley P. Chandler 1901-5-1 1183 Humboldt Humboldt Bay 30 Comment
  HSC10722  Poa kelloggii E. W. Styskel 1963-4-20 17 Humboldt 3 mi. SE of Korbel, on Snow Camp Rd. 305 Comment
  HSC10693  Poa macrantha J. W. Johnson 1961-9-3 1080 Humboldt Arcata, Christenson Farm, Samoa Peninsula. Comment
  HSC10751  Poa pratensis R. H. Berg 1963-4-27 55 Humboldt Prairie Creek State Park, N of Arcata. Comment
  HSC10764  Poa pratensis Gene S. Van Horn 1962-5-5 13 Humboldt Arcata, 250 East 17th St. 61 Comment
  RSA63625  Poa secunda Milo S. Baker s.n. Humboldt Near Yager Comment
  UC525663  Poa secunda subsp. secunda Joseph P. Tracy 1933-7-26 12911 Humboldt Grouse Mt; North Coast Ranges 1524 Comment
  UCD92111  Poa trivialis Joseph P. Tracy 1950-6-8 18723 Humboldt Bear River Ridge. 609 Comment
  UC1103182  Poa unilateralis Joseph P. Tracy 1904-5-1 2050 Humboldt bluff near Bucksfort; Northern Coast Ranges, Humboldt Bay 0 Comment
  UC1191118  Polemonium carneum Joseph P. Tracy 1928-5-20 8440 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  HSC48881  Polycarpon tetraphyllum J. P. Smith, Thomas W. Nelson 1977-6-30 9222 Humboldt Samoa Peninsula just E of the drag strip. Comment
  HSC17225  Polygala californica J. Wendell Howe 11 May [year missing] Humboldt Kneeland Comment
  HSC31205  Polygala californica D. E. Anderson 1972-6-20 5743 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  POM209000  Polygala californica Lincoln Constance 1934-5-23 608 Humboldt Look Prairie, Bull Creek Watershed, Humboldt Redwood Park 366 Comment
  UC902120  Polygala cornuta var. cornuta Joseph P. Tracy 1947-7-5 17788 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  HSC100601  Polygonum bistorta Carl C. Marshall Jun 1886 269 Humboldt Trinity Summit. Comment
  POM302977  Polygonum coccineum H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans. Comment
  RSA275282  Polygonum kelloggii Thomas W. Nelson, Jane P. Nelson 1978-7-2 4391 Humboldt [Unspecified] 1616 Comment
  RSA65853  Polygonum paronychia F. W. Peirson 1941-7-29 13109 Humboldt old sand dune back of beach at Little River Beach State Park Comment
  CAS-BOT-BC419957  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1935-7-28 14316 Humboldt Trinity Summit. Head of Devil's Hole 1828 Comment
  POM118346  Polypodium californicum Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  CAS-BOT-BC71829  Polypodium californicum Joseph P. Tracy 1941-3-26 16835 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC77391  Polypodium californicum L. P. Janeway 1983-4-16 232 Humboldt Near old hwy. 299 on W side of Berry Summit 823 Comment
  HSC95875  Polypodium calirhiza Will Ferrand 2002-5-7 46 Humboldt 200 ft. N of the intersection of Lanphere Rd. and the entrance to Lanphere Dunes Preserve 9 Comment
  HSC45868  Polypodium glycyrrhiza J. P. Smith 1971-10-6 4984 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC1132  Polypodium glycyrrhiza W. R. Supernaugh, Jr. 1964-12-15 15 Humboldt 0.25 mi. S of Trinidad on old Hwy. 101 30 Comment
  UC955491  Polypodium glycyrrhiza Mrs. Carlotta C. Hall 1924-8-9 234 Humboldt Wilder Ranch near Carlotta 91 Comment
  UC1241361  Polypodium scouleri R. J. Rodin 1961-8-10 6807 Humboldt Sequoia Park Eureka; Sequoia Park Comment
  UC163618  Polypogon interruptus Jos. Burtt Davy and W. C. Blasdale 1899-5 5495 Humboldt Pepperwood Comment
  UC183480  Polypogon interruptus Joseph P. Tracy 1912-7-26 3834 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  RSA129378  Polypogon monspeliensis H. S. Yates 1936-6-16 5679 Humboldt 1 mile NE of Samoa 3 Comment
  UC183446  Polypogon monspeliensis J. P. Tracy 1912-10-20 3996 Humboldt near Loleta 30 Comment
  CAS-BOT-BC237457  Polypogon viridis Joseph P. Tracy 1926-7-4 7697 Humboldt Trinity River Valley, near the South Fork Comment
  CAS-BOT-BC76763  Polystichum imbricans subsp. imbricans L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road. Comment
  CAS-BOT-BC76663  Polystichum munitum Doris K. Kildale 1928-12-30 6764 Humboldt Phillipsville Comment
  CAS-BOT-BC76665  Polystichum munitum Doris K. Kildale 1926-7-22 2414 Humboldt Metropolitan, woods near Canyon Park. Comment
  HSC12977  Polystichum munitum M. Athey, D. La Conte 1970-11-28 2 Humboldt HSU campus Comment
  HSC79145  Polystichum munitum C. J. Thomas 1984-9-25 120 Humboldt In Redwood forest immediately behind HSU fieldhouse 79 Comment
  POM305537  Polystichum munitum Henry J. Ramsey, Henry J. Ramsey 1939-10-13 834 Humboldt Highway 299 in mountains. Comment
  SEINET10793992  Polystichum munitum J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13008 Humboldt Leggett; Redwoods River Resort, 75000 Highway 101. Comment
  SEINET11722267  Polystichum munitum C. S. Kaut 2000-1 2 Humboldt Trinidad Comment
  UCSB29341  Polystichum munitum Phelps, M. 1972-3-20 Humboldt 1.5 miles from Gaberville along Old Briceland Rd., 0.5 miles N of roadside. 213 Comment
  HSC66076  Polystichum scopulinum M. S. Taylor, J. D. Jokerst, L. Ahart 1980-2-8 3214 Humboldt Humboldt Peak, N outcrop on the top 2155 Comment
  RSA171967  Populus trichocarpa Robert F. Thorne 1957-9-2 18990 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC512087  Populus trichocarpa Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1220 Humboldt in pine barrens near the coast 1 mi n Samoa 0 Comment
  HSC17777  Potamogeton foliosus J. P. Tracy 1934-8-14 13588 Humboldt S Fork of Eel River, midway between Miranda and Garberville 91 Comment
  SBBG83772  Potentilla anserina subsp. pacifica J. D. Hobson -Jul-1966 Humboldt beach and liff at S end of sand spit forming Eureka harbor, Loleta, 10 mi S of Eureka Comment
  CAS-BOT-BC143081  Potentilla anserina subsp. pacifica Malcom A. Nobs; S. Galen Smith 1949-8-3 1161 Humboldt 1 mile south of Fields Landing, Eel River Valley Comment
  UC1321457  Potentilla anserina subsp. pacifica Arne Henrik Rousi 12 Humboldt Comment
  UCD113697  Potentilla anserina subsp. pacifica D. C. Sumner 1957-4-1 s.n. Humboldt Near Fortuna. Comment
  RSA34306  Potentilla anserina var. grandis C. Kistner 1935-5-10 s.n. Humboldt Samoa. Comment
  HSC82396  Potentilla drummondii Thomas W. Nelson 1979-7-11 5010 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC44757  Potentilla gracilis Maralyn O'Meara 1972-6-8 82 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  CAS-BOT-BC540159  Potentilla gracilis var. fastigiata Carl B. Wolf 1934-7-2 5859 Humboldt 5.5 mi. from Bald Mt. on road to Snow Camp. 914 Comment
  HSC70643  Prosartes hookeri R. York 1980-5-18 561 Humboldt Near Black Mtn. 1006 Comment
  UC577375  Prunella vulgaris var. lanceolata Joseph P. Tracy 1932-7-13 10524 Humboldt Corral Prairie Trinity Summit; , Corral Prairie 1584 Comment
  UC1174866  Prunella vulgaris var. lanceolata P. C. Everett and E. K. Balls 1959-10-25 23961 Humboldt U.S. Hwy 299 to Arcata 14 mi w Willow Creek; w of Willow Creek 502 Comment
  UCD125337  Prunella vulgaris var. lanceolata Roman Gankin 1965-8-6 560 Humboldt 2.5 miles SW of Capetown. Comment
  CAS-BOT-BC159976  Prunus emarginata Doris K. Kildale 1927-5-14 3192 Humboldt Big Lagoon Comment
  CDA26145  Prunus emarginata Gordon Leppig 1998-6-1 864 Humboldt Horse Mountain. Buck Flat, Titlow Hill Road at Ammon Ridge Road. Comment
  JEPS44938  Prunus emarginata W. L. Jepson 1902-7-16 2034 Humboldt Trinity Summit 2133 Comment
  RSA46894  Prunus virginiana var. demissa Doris K. Kildale 1927-5-20 3240 Humboldt Bug Creek. Comment
  UC169340  Pseudognaphalium californicum Joseph P. Tracy 1912-7-21 3769 Humboldt Alton Northern Coast Region of California, Alton 30 Comment
  HSC89952  Pseudognaphalium stramineum L. P. Janeway 1984-12-5 1193 Humboldt N Spit of Humboldt Bay; W side of Samoa Rd. near boat ramp. 5 Comment
  UC604670  Pseudognaphalium thermale Joseph P. Tracy 1938-8-14 16111 Humboldt at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  HSC68606  Pseudotsuga menziesii var. menziesii Jacqueline Greenleaf 1980-8-12 328 Humboldt Near Becker Cabin. 1143 Comment
  HSC76294  Pseudotsuga menziesii var. menziesii Denis Kearns 1981-7-6 74 Humboldt Near Mosquito Lake 1256 Comment
  CAS-BOT-BC361930  Psilocarphus tenellus M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale on road to Garberville Comment
  CAS-BOT-BC460605  Pyrola aphylla Doris K. Kildale 1925-6-28 840 Humboldt Laurence Creek 609 Comment
  JEPS58839  Pyrola aphylla Milo S. Baker 1923-7-31 168 Humboldt Booth's Run, North Coast Comment
  JEPS66563  Pyrola crypta Joseph P. Tracy 1932-7-14 10569 Humboldt Trinity Summit, Fir Woods near Corral Prairie 1584 Comment
  HSC70845  Quercus chrysolepis M. A. Baker 1980-6-7 1828 Humboldt Near Ammon Creek 732 Comment
  SEINET13953254 Image available Quercus chrysolepis R. Earing, C. Cavanaugh, C. Collins 1987-1 109 Humboldt Grays Falls campground approximately 10 miles E. of Willow Creek on highway 299 along the trinity river. Comment
  CAS-BOT-BC94315  Quercus garryana Doris K. Kildale 1927-6-25 3580 Humboldt Ettersburg Comment
  HSC73544  Quercus garryana Gail Newton 1980-7-14 1469 Humboldt Near Last Chance Ridge. 1219 Comment
  UC535734  Quercus garryana Eleanor Armstrong 1934-6-15 1132 Humboldt Richardson Grove 121 Comment
  CAS-BOT-BC105169  Quercus kelloggii Doris K. Kildale 1930-4-13 9579 Humboldt Bridgeville 289 Comment
  UC672858  Quercus kelloggii Joseph P. Tracy 1940-9-15 16723 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS37674  Quercus sadleriana W. L. Jepson Jul 16 1902-Jul 23 1902 2033 Humboldt just below Trinity Summit 2133 Comment
  UCD47426  Quercus vacciniifolia John M. Tucker 1948-9-3 1851 Humboldt California, Humbolt Co.; Horse Mountain, at junction of roads to Grouse Mountain and to Horse Mountain Mine, Six Rivers National Forest; 1950 Comment
  HSC36067  Ranunculus aquatilis R. Hager May 1962 Humboldt Turner Draw near Arcata Comment
  CAS-BOT-BC379175  Ranunculus aquatilis var. aquatilis Doris K. Kildale 1926-4-18 1769 Humboldt McClellan Mountain Comment
  HSC37650  Ranunculus aquatilis var. aquatilis Robert M. Specht, John Rehling 1976-4-25 404 Humboldt 12 mi. E of Bridgeville on Hwy. 36, at SE end of Larabee Valley Comment
  UC118296  Ranunculus aquatilis var. hispidulus W. W. Price 1890-7-1 Humboldt near Jarnigans; Mad River Comment
  CAS-BOT-BC378852  Ranunculus californicus var. californicus Doris K. Kildale 1926-3-20 1549 Humboldt Near mouth of Little River Comment
  UC668066  Ranunculus flammula Joseph P. Tracy 1937-5-30 15312 Humboldt shallow pool near Bosworth's; Larrabee Creek 365 Comment
  POM269619  Ranunculus flammula var. ovalis Joseph P. Tracy 1937-7-17 15436 Humboldt Eureka. 46 Comment
  UC1196225  Ranunculus occidentalis Joseph P. Tracy 1921-4-24 5453 Humboldt Phillipsville Flat Northern Coast Ranges, South Fork of Eel River 91 Comment
  HSC18169  Ranunculus occidentalis var. occidentalis Francis Winter 1960-5-7 Humboldt NE end of Arbor Camp Ridge 915 Comment
  SEINET180820  Ranunculus occidentalis var. rattanii Bassett Maguire, R Maguire; C. B. Maguire 1934-6-9 15179 Humboldt Clam Beach 15 mi N of Eureka Comment
  HSC53976  Ranunculus orthorhynchus Griswold, Butler 1979-7-11 7049 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  CDA3497  Ranunculus parviflorus E. C. Whitney 1962-5-29 Humboldt Millsap property, Pepperwood. 0 Comment
  HSC37430  Ranunculus repens var. repens J. L. Baker 1965-4-10 37 Humboldt 4 mi. N of Arcata on N Bank Rd. Comment
  RSA232671  Rhododendron macrophyllum Larry E. DeBuhr, Gary D. Wallace 1972-5-22 612 Humboldt Prairie Creek, Redwoods State Park, along Davidson Rd. Comment
  CAS-BOT-BC200384  Rhododendron occidentale var. paludosum W. R. Dudley 1899-1-1 s.n. Humboldt Arcata Comment
  RSA69331  Rhododendron occidentale var. paludosum F. W. Peirson 1923-7-11 3801 Humboldt 7 miles N of Arcata. Comment
  UC535710  Ribes Eleanor Armstrong 1934-8-23 1153 Humboldt Richardson Grove 121 Comment
  UC1198921  Ribes binominatum Joseph P. Tracy 1942-6-23 17251 Humboldt near Box Camp; Trinity Summit 1584 Comment
  CAS-BOT-BC92884  Ribes bracteosum Greg de Nevers 2001-4-19 12258 Humboldt Prairie Creek, Redwoods State Park. 91 Comment
  UC70556  Ribes inerme var. klamathense J. Burtt Davy 1899-6-26 5867 Humboldt Hoopa Valley North Coast Ranges Comment
  UC154117  Ribes laxiflorum J. P. Tracy 1909-4-18 2951 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC173360  Ribes lobbii Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. 1524 Comment
  CAS-BOT-BC173363  Ribes lobbii L. R. Abrams 1918-6-14 7091 Humboldt Three Creeks Comment
  HSC103226  Ribes lobbii Jade Paget-Seekins 2010-6-23 24 Humboldt Horse Mountain. Slightly less than 10 miles up Titlow Hill Road, on Forest Route 1. Near 'Road Narrows' sign. 1558 Comment
  UC205483  Ribes lobbii Joseph P. Tracy 1919-9-18 5247 Humboldt Trinity Summit Northern Coast Ranges 1524 Comment
  UC902099  Ribes lobbii Joseph P. Tracy 1948-9-5 18177 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  POM214934  Ribes marshallii Joseph P. Tracy 1932-7-15 10592 Humboldt Ridges east of Corral Prairie; Trinity Summit Comment
  UC1198936  Ribes marshallii Joseph P. Tracy 1942-6-23 17261 Humboldt open ridges near Water-dog Lakes; Trinity Summit 1828 Comment
  HSC20319  Ribes menziesii Doris K. Kildale 1926-3-26 1650 Humboldt Old Fortuna Rd. near junction with new Hwy. beyond Fernbridge Comment
  HSC90028  Ribes menziesii Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-9 40 Humboldt Blue Lake Rd., 0.7 mi. E of its intersection with Railroad Ave. 76 Comment
  UC902109  Ribes menziesii Joseph P. Tracy 1948-3-6 17954 Humboldt Trinidad 60 Comment
  RSA0021765  Ribes menziesii Doris K. Kildale 1929-2-28 6949 Humboldt Humboldt State Teachers College, Arcata. Comment
  SEINET3825262 Image available Ribes nevadense Joseph P. Tracy 1932-7-18 10716 Humboldt Head of Brett Hole 1829 Comment
  UC70559  Ribes roezlii J. Burtt Davy 1899-6-11 5438 Humboldt near Elk Prairie; North Coast Ranges Comment
  HSC45099  Ribes roezlii var. amictum R. Sutherland 1978-4-23 15 .23478 Humboldt 716 Comment
  UC1198939  Ribes roezlii var. cruentum Joseph P. Tracy 1935-3-8 13729 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC211980  Ribes sanguineum J. H. Thomas 1949-6-13 914 Humboldt Along trail between Le Perron Flat and Whiteys Peak, east of town of Orleans, Six Rivers National Forest 1371 Comment
  UC1198913  Ribes sanguineum Joseph P. Tracy 1928-4-22 8411 Humboldt Willow Creek Canyon Northern Coast Ranges 762 Comment
  RSA0019527  Ribes sanguineum John H. Thomas 1949-6-13 914 Humboldt Along trail between Le Perron Flat and Whiteys Peak. Six Rivers National Forest. East of town of Orleans. 1372 Comment
  UCR138884  Ribes sanguineum var. glutinosum E. Bower, S. Marubayashi, E. Perry 1997-5-10 52 Humboldt Titlow Hill Road, 0.5 mi past intersection with Hwy 299 762 Comment
  HSC103229  Ribes sanguineum var. sanguineum Jade Paget-Seekins 2010-6-23 26 Humboldt Horse Mountain. Slightly less than 10 miles up Titlow Hill Road, on Forest Route 1. Near 'Road Narrows' sign. 1558 Comment
  HSC103129  Ribes viscosissimum M. Mesler 2009-7-31 813 Humboldt South Fork Mtn. FS 1, 9.7 north of intersection with 4N12 1738 Comment
  SEINET200854 Image available Ribes viscosissimum J. P. Tracy 1932-7-12 10466 Humboldt Klamath Mountains Trinity Summit rdiges east of Corral Prairie 1829 Comment
  JEPS1248  Romanzoffia californica Joseph P. Tracy 1923-4-29 6196 Humboldt Kneeland Prairie 762 Comment
  JEPS53820  Rorippa palustris H. E. Parks and Joseph P. Tracy 1931-5-17 9425 Humboldt Trinity River near Willow Creek; Northern Coast Ranges, Trinity River nr Willow Creek 152 Comment
  CAS-BOT-BC147434  Rosa californica Doris Kildale 1931-6-6 10869 Humboldt Gans Prairie, Orick - Weitchpec Road Comment
  POM161058  Rosa californica Joseph P. Tracy 1923-9-16 6550 Humboldt Trinity River Valley, Near the south fork Comment
  CHSC33380  Rosa canina J. O. Sawyer; R. J. Cole 1977-7-3 3019 A Humboldt Along Big Hill Road (8N01) at Mud Spring. Comment
  CAS-BOT-BC146479  Rosa gymnocarpa Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  CAS-BOT-BC146496  Rosa gymnocarpa Doris K. Kildale 1927-7-3 3644 Humboldt Willow Creek Flat 152 Comment
  CHSC33401  Rosa gymnocarpa J. O. Sawyer; R. J. Cole 1977-7-3 3018 Humboldt Along Big Hill Road (8N01) at Mud Spring. Comment
  HSC49926  Rosa gymnocarpa Maralyn O'Meara 1974-7-11 540 Humboldt Kneeland; Barry Ridge Comment
  UC492160  Rosa gymnocarpa Joseph P. Tracy 1932-7-13 10493 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  SEINET11912074  Rosa gymnocarpa F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -284 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  HSC102556  Rosa gymnocarpa var. gymnocarpa M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1544 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  CDA26285  Rosa nutkana P. Haggard 1993-8-9 Humboldt Blue Lake. 0 Comment
  CAS-BOT-BC148345  Rosa pisocarpa Joseph P. Tracy 1933-7-25 12898 Humboldt Grouse mt. 1524 Comment
  HSC60108  Rosa pisocarpa M. A. Baker 1978-5-2 451 Humboldt Elk Head Comment
  UC1199040  Rosa spithamea Joseph P. Tracy 1929-7-4 8620 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  HSC59138  Rubus parviflorus Terry Roth 1979-5-20 62 Humboldt Along old logging road that follows Jolly Giant Creek. 79 Comment
  HSC69534  Rubus parviflorus R. Kalal 1979-5-20 74 Humboldt Logging Rd. E of HSU Campus, Arcata 46 Comment
  LA37949  Rubus parviflorus Doris K. Gillespie; 1938-8-8 15398 Humboldt Elk River, 6 mi. S. of Eureka Comment
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May 4 2014
  UCR3512  Rubus parviflorus David Whistler, H. M. Whistler 1964-8-1 640801- 5 Humboldt Coast Range, US Hwy 299, 6 mi east of Blue Lake Comment
  UC203878  Rubus spectabilis Joseph P. Tracy 1918-5-12 4932 Humboldt at Eureka; Northern Coast Ranges, at Eureka 0 Comment
  UC584131  Rubus spectabilis David D. Keck and J. Clausen 1935-6-16 3394 Humboldt mouth of Little River Comment
  HSC61072  Rubus ursinus T. Jimerson, J. Pageau 1979-6-22 608 Humboldt Near Bee Mtn., close to the town of Orleans 656 Comment
  HSC99432  Rubus ursinus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 81 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS44749  Rubus ursinus W. L. Jepson 1902-7-1 1965 Humboldt Hupa Road near Redwood Creek; near Redwood Creek, Hupa Road Comment
  UC666164  Rubus ursinus S. W. Brown 1942-6-13 42011 Humboldt 10.1 mi n Fortuna (on U.S. Hwy 99); ; Fortuna, Humboldt Co. Comment
  UC666866  Rubus ursinus Joseph P. Tracy 1936-8-7 15112 Humboldt 2 mi se Devil's Hole (westerly exposure); Trinity Summit, se of Devil's Hole 1584 Comment
  SEINET5710904  Rudbeckia occidentalis Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6104 Humboldt From California 299 at Hawkins Bar (In Trinity County), turn onto the road to Denny and travel 1.7 miles down this road toa fork in the road. Take the lefthand road (leading to Waterman Ridge, Zeigler Point) and travel 6.7 miles down this road to antoher fork in the road. Take the right fork (away from thr road leading to Waterman Ridge and Willow Creek). On the road (7NO4), travel 1.5 miles to another fork; continue on 7NO4 (the left fork) for 7.4 miles. At this point, take 7 NO4N, the road to Groves Prairie. The collection site is a short distance up the road.; Groves Prairie Comment
  UC146145  Rumex J. P. Tracy 1906-8-18 2543 Humboldt immediate vicinity Eureka 0 Comment
  HSC70235  Rumex acetosella M. A. Baker 1980-6-8 1898 Humboldt Near Buck Flat. 1554 Comment
  CAS-BOT-BC421932  Rumex acetosella Kenneth Clark 1980-3-1 510 Humboldt Shelter Cove. Dead Man's Gulch. 51 Comment
  RSA239769  Rumex acetosella Larry E. DeBuhr 1973-4-23 997 Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  HSC37577  Rumex crispus J. D. Ackerman 1975-6-10 452 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd. S of Manila Comment
  CAS-BOT-BC433703  Rumex occidentalis W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  SEINET12155885  Rupertia physodes J. P. Tracy 1950-1 18783 Humboldt Jenk's Ranch. Mail Ridge, N of Harris 7 mi Comment
  UC296201  Ruppia maritima H. E. Parks 1757 Humboldt Little River Lagoon Comment
  UC672874  Ruppia maritima Joseph P. Tracy 1938-7-15 16079 Humboldt Mouth of Eel River 3 Comment
  UC668106  Sagina apetala Joseph P. Tracy 1933-3-19 12200 Humboldt Alton to Fortuna (Eel R.); Eel R. 15 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
  POM161039  Sagina procumbens Joseph P. Tracy 1920-6-6 5338 Humboldt Freshwater Creek near Wrangletown. 30 Comment
  CAS-BOT-BC129899  Salix bonplandiana Joseph P. Tracy 1935-6-22 13960 Humboldt Mouth of Larrabee Creek, on Eel River 45 Comment
  UC463039  Salix boothii Leland S. Smith 1931-9-16 2633 Humboldt Babbitt Spring; Jones Valley Range, Tahoe Nat'l Forest 2133 Comment
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Jul 10 2015
  CAS-BOT-BC103817  Salix exigua Harold E. Parks; Joseph P. Tracy 1931-5-17 0967 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  POM220144  Salix exigua H. E. Parks, Joseph P. Tracy 1931-5-17 969 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  SD992  Salix exigua var. hindsiana Herold E. Parks 1931-5-14 958 Humboldt Fernbridge, Eel River, on gravel bars 10 Comment
  UC1196605  Salix exigua var. hindsiana Joseph P. Tracy, C. R. Ball, and H. E. Parks 1932-5-17 10096 Humboldt Trinity R. opposite Willow Creek; North Coast Ranges 152 Comment
  CAS-BOT-BC106856  Salix hookeriana Harold E. Parks 1931-8-1 01053 Humboldt Little River Lagoon Comment
  HSC96609  Salix hookeriana Gordon Leppig 2005-4-8 2211 Humboldt W end of W Hawthorne St., Eureka 3 Comment
  RSA342501  Salix hookeriana Robert F. Thorne, Percy C. Everett 1965-8-7 35230 -c Humboldt Big Lagoon. 3 Comment
  RSA475258  Salix hookeriana Lyman D. Benson 1928-7-5 370 Humboldt Garberville. Seward N Coast mtn range. S Fork Eel River. 244 Comment
  UC1173587  Salix hookeriana Joseph P. Tracy 1937-7-27 15509 Humboldt Mad R. at mouth of Lindsey Creek; Mad R., Lindsey Creek 15 Comment
  UC1173588  Salix hookeriana Joseph P. Tracy 1937-7-27 15508 Humboldt Lindsay Creek Mad River (mouth) 15 Comment
  UC1196634  Salix hookeriana Joseph P. Tracy 1934-3-10 13161 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC275525  Salix hookeriana Joseph P. Tracy 1924-9-21 6884 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  UC490454  Salix hookeriana Joseph P. Tracy 1932-5-10 9938 Humboldt Bear R. at Capetown; Northern Coast Ranges, , Bear R. 30 Comment
  UC490461  Salix hookeriana Joseph P. Tracy 1932-5-10 9957 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC492330  Salix hookeriana Harold E. and Susan T. Parks 1932-4-3 1100 Humboldt Little R. Lagoon Trinidad; , Little River Lagoon Comment
  JEPS12976  Salix laevigata Joseph P. Tracy 1932-4-23 9834 Humboldt 4 mi s Dyerville (S. Fork Eel River); Northern Coast Ranges 60 Comment
  HSC38185  Salix lasiandra Thomas W. Nelson, James Nelson 1976-3-5 3284 Humboldt Beside Salmon Creek, W of old Hwy. 101 at Beatrice Comment
  UC1196586  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1929-10-20 8682 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 701 Comment
  UC1196589  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1932-4-17 9794 Humboldt Alton to Fortuna (Eel R.); Northern Coast Region, Eel R. 15 Comment
  UC1196590  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1919-9-14 5205 Humboldt near Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC519382  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1933-7-16 12772 Humboldt meadow at McKay Camp McKay Camp; Northern Coast Ranges, S. Fork Mt. 1676 Comment
  CAS-BOT-BC125217  Salix lasiandra var. lasiandra W. J. Ferlatte 1967-6-13 1122 Humboldt North bank of Mad River 1/4 mi. east of hwy. 101 6 Comment
  HSC96610  Salix lasiandra var. lasiandra Gordon Leppig 2005-4-8 2210 Humboldt Eureka, edge of PALCO Marsh at W end of W Hawthorne St. 3 Comment
  CAS-BOT-BC107103  Salix lasiolepis Joseph P. Tracy 1931-9-26 9695 Humboldt Redwood Creek, at Berry's 274 Comment
  CAS-BOT-BC107582  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-13 1255 Humboldt Floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC107598  Salix lasiolepis Joseph P. Tracy 1933-4-2 10959 Humboldt On slope of Berry's Mountain, on Trinity Highway, east of Redwood Creek 762 Comment
  CAS-BOT-BC107622  Salix lasiolepis Joseph P. Tracy 1933-4-9 10966 Humboldt Bridgeville, along Van Duzen R. 228 Comment
  HSC20009  Salix lasiolepis J. P. Tracy 1932-10-8 10867 Humboldt Berry Mt. on Trinity Hwy. 762 Comment
  HSC20010  Salix lasiolepis J. P. Tracy 1933-2-26 10914 Humboldt Miranda, S Fork of Eel River 122 Comment
  HSC99119  Salix lasiolepis Cara Witte 2008-6-13 726 Humboldt Forest Service Road 4N32. 1 mile south of intersection with Forest Service Road 4N32E. 1455 Comment
  UC1196656  Salix lasiolepis Joseph P. Tracy 1920-8-15 5387 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  UC1196659  Salix lasiolepis Joseph P. Tracy 1932-5-17 10078 Humboldt Willow Creek North Coast Ranges, Trinity River 152 Comment
  UC212998  Salix lasiolepis Joseph P. Tracy 1919-9-13 5197 Humboldt near Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC469417 Image available Salix lasiolepis Joseph P. Tracy 1927-8-7 8305 Humboldt Redwood Creek, at Berry's 274 Comment
  UC481807  Salix lasiolepis H. P. Bracelin 1931-5-1 269 Humboldt Sylvandale, between Miranda and Meyers South Fork of Eel River Comment
  UC519328  Salix lasiolepis Joseph P. Tracy 1933-5-14 12180 Humboldt Willow Creek, near county road bridge Trinity River Valley 152 Comment
  UC519348  Salix lasiolepis Joseph P. Tracy 1933-11-12 13115 Humboldt Miranda North Coast Ranges, South Fork of Eel River 91 Comment
  CAS-BOT-BC107287  Salix lasiolepis var. bigelovii Joseph P. Tracy 1933-3-19 10934 Humboldt along Van Duzen R. 228 Comment
  CAS-BOT-BC107296  Salix lasiolepis var. bigelovii Harold E. Parks 1931-5-14 0963 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  RSA475257  Salix lucida subsp. lasiandra Lyman D. Benson 1929-7-15 1809 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  CAS-BOT-BC125614  Salix melanopsis Doris K. Kildale 1925-6-27 765 Humboldt Yager Creek - near mouth 30 Comment
  CAS-BOT-BC125629  Salix melanopsis Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-13 01252 Humboldt On floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  HSC20034  Salix melanopsis H. E. Parks, J. P. Tracy 1931-5-17 972 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  RSA171964  Salix melanopsis Robert F. Thorne 1957-9-2 18986 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC1196637  Salix melanopsis Joseph P. Tracy 1932-8-27 10746 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC1196638  Salix melanopsis Joseph P. Tracy 1932-8-27 10746 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC162708  Salix melanopsis Joseph P. Tracy 1911-7-4 3295 Humboldt Willow Creek near mouth <of> Trinity R.; Northern Coast Ranges, Willow Creek - tributary of Trinity R 182 Comment
  UC212984  Salix melanopsis Joseph P. Tracy 1920-5-31 5334 Humboldt mouth of Yager Creek; Northern Coast Region, Yager Creek 30 Comment
  UC490561  Salix melanopsis Joseph P. Tracy 1932-5-1 9876 Humboldt vicinity of R. Garberville Garberville; Northern Coast Ranges, Garberville 121 Comment
  UC512011  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1234 Humboldt 1 1/2 mi. e. Alton (floodplain of Van Duzen R.); Van Duzen R. 30 Comment
  UC519366  Salix melanopsis Joseph P. Tracy 1933-7-20 12804 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  UC54764  Salix melanopsis P. E. Goddard 1901-7 16 Humboldt Hupa Comment
  UC906707  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1942-5-16 11553 Humboldt vicnity of Garberville Garberville 152 Comment
  CAS-BOT-BC129162  Salix scouleriana Harold E. Parks 1931-5-12 955 a Humboldt Samoa, Humboldt Bay, near sea level Comment
  UC1196706  Salix scouleriana Joseph P. Tracy 1933-12-24 13132 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  UC1196709  Salix scouleriana Joseph P. Tracy 1936-2-2 14765 Humboldt vicinity of Carlotta Carlotta 30 Comment
  CAS-BOT-BC128962  Salix sitchensis W. J. Ferlatte 1967-6-13 1116 Humboldt Coastal strand, dunes, Samoa Peninsula 3 Comment
  CAS-BOT-BC128986  Salix sitchensis Harold E. Parks 1931-3-25 903 Humboldt Orick, on Van Duzen River 6 Comment
  UC303028  Salix sitchensis Joseph P. Tracy 1926-2-21 7359 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC490491  Salix sitchensis Joseph P. Tracy 1932-8-11 10340 Humboldt N. Yager Creek Northern Coast Ranges, N. Yager Creek 304 Comment
  UC492340  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
  SEINET4855902  Salix tracyi Unknown 1931-5-17 0976 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  UC490585  Salix tracyi Joseph P. Tracy 1932-4-24 9803 Humboldt South Fork of Eel River, between Miranda and Redway 91 Comment
  SBBG7380  Sambucus nigra subsp. caerulea K. K. Muller 1954-6-20 627 Humboldt 3 mi S of Scotia Comment
  HSC79479  Sambucus racemosa var. racemosa Kenneth Clark 1980-3-27 562 Humboldt N fork of Dead Man's Gulch. 73 Comment
  UC168945  Sambucus racemosa var. racemosa Joseph P. Tracy 1910-6-19 3155 Humboldt near Forks of Eel River; Northern Coast Region, region about Humboldt Bay 0 Comment
  UCD137261  Sambucus racemosa var. racemosa Joseph P. Tracy 1947-8-24 17912 Humboldt Trinity Summit, east of Box Camp. 1676 Comment
  CAS-BOT-BC157200  Sanguisorba officinalis L. B. Kildale 1930-7-11 10208 Humboldt Snow Camp head of Redwood Creek Comment
  HSC21610  Sanicula arctopoides S. J. Hawks 1965-3-12 1 Humboldt W of Eureka Airport Comment
  UC1197110  Sanicula bipinnatifida Joseph P. Tracy 1928-6-24 8461 Humboldt Valley of South Yager Creek 762 Comment
  HSC81674  Sanicula crassicaulis Thomas W. Nelson, Jane P. Nelson 1980-7-13 6065 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  UC183568  Sanicula crassicaulis Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3599 Humboldt near Hydesville (Northern Coast Region); Northern Coast Region 60 Comment
  BLMAR225  Sanicula crassicaulis Jennifer Anthony-Wheeler 1996-7-11 225 Humboldt N.Dobbyn creek, growing throughout understory with I mixed evergreen forest 1005 Comment
  HSC21634  Sanicula crassicaulis V. G. Vieira 1963-5-18 28 Humboldt Lamphere's Comment
  UC1006710  Sanicula crassicaulis C. Ritchie Bell 1952-5-3 1326 Humboldt near Cobbs (along Mad River); Mad River Comment
  JEPS1004  Sanicula graveolens Joseph P. Tracy 1929-7-4 8614 A Humboldt French Camp Ridge 1066 Comment
  HSC45599  Sanicula tracyi Thomas W. Nelson 1978-5-27 4091 Humboldt McKneown Ranch N of Dinsmore. Comment
  HSC65834  Sanicula tracyi R. York 1980-5-23 622 Humboldt Near Buck Mtn. 1524 Comment
  HSC21644  Sanicula tuberosa Elrid H. Spinas 1948-5-15 9 Humboldt Horse Mtn. Comment
  HSC75950  Sanicula tuberosa Overton, Butler 1979-7-24 9707 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  UC1197327  Sanicula tuberosa Joseph P. Tracy 1930-6-21 8780 Humboldt Northern Coast Ranges, Laribee Valley Laribee Valley; Northern Coast Ranges, Laribee Valley 792 Comment
  HSC98716  Saponaria officinalis Cara Witte 2007-8-1 615 Humboldt Friday Ridge Road (Forest Service Road 6N08). 1/2 mile north of intersection with Forest Service Road 5N09. 1414 Comment
  UC492228  Saxifraga ferruginea Joseph P. Tracy 1932-7-18 10710 Humboldt head of Brett Hole (Trinity Summit); Klamath Mountins, , Brett Hole 1828 Comment
  HSC102002  Saxifraga oregana M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 903 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  POM87944  Schoenoplectus acutus var. occidentalis Le Roy Abrams, Rimo C. Bacigalupi 8272 Humboldt Big Lagoon, south of Orick. Comment
  CDA39126  Scirpus maritimus Gordon Leppig 1998-6-25 851 Humboldt Route 101, mile marker 81.60 Comment
  UC1100832  Scirpus microcarpus Malcolm A. Nobs, S. Galen Smith 1949-8-3 1198 Humboldt marsh and bog land at the southern outskirts Eureka; southern outskirts Eureka Comment
  HSC15632  Scoliopus bigelovii F. B. Plett 1963-4-24 30 Humboldt 1.5 mi. N of Trinidad along Old Hwy. 101 Comment
  CAS-BOT-BC517414  Scoliopus bigelovii Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  SEINET3991325  Scoliopus bigelovii Unknown 1956-3-17 104 Humboldt South boundary of Jensen grove, off US Highway 101 Comment
  HSC32321  Scutellaria antirrhinoides D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5651 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  UC1713596  Scutellaria antirrhinoides Harold E. Parks and Joseph P. Tracy 1934-6-27 Humboldt Grouse Mountain 1432 Comment
  UC1713599  Scutellaria antirrhinoides Joseph P. Tracy 1938-6-9 15875 Humboldt near Blocksburg (2 mi s of town) 304 Comment
  RSA178561  Sedum divergens Joseph P. Tracy 1950-8-8 19294 Humboldt Croghan Hole, on Trinity Summit Comment
  JEPS109415  Sedum laxum subsp. heckneri D. W. Taylor 2004-6-24 19137 Humboldt Clear Lake, along Titlow Hill road. Comment
  SD51705  Sedum laxum subsp. heckneri Joseph P. Tracy 1948-9-5 18190 Humboldt On rock ledge at top of ridge, 1.0 mile south of Grizzly Camp. 1370 Comment
  HSC57216  Sedum obtusatum subsp. retusum Griswold, Butler 1979-7-12 7280 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC57880  Sedum obtusatum subsp. retusum Overton, Butler 1979-7-31 11418 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC58050  Sedum obtusatum subsp. retusum G. L. Clifton, Griswold 1979-8-1 11911 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  JEPS28948  Sedum spathulifolium P. C. Hutchison 1961-5-22 2029 Humboldt ca 5.4 mi n Orleans (e side Klamath River, high bluff along road); e side Klamath River, n of Orleans Comment
  HSC28237  Sedum spathulifolium var. pruinosum Clifton Raymond Chesbrough 1973-6-19 100 Humboldt 0.5 mi. N of College Cove along coast Comment
  HSC6476  Sedum spathulifolium var. pruinosum Joel W. Reinhard 1966-5-20 49 Humboldt Two beaches N of College Cove Comment
  HSC6479  Sedum spathulifolium var. spathulifolium Francis Winter 1960-5-7 Humboldt 4 mi. S of Hoopa Indian Reservation, on Hoopa-Willow Creek Rd. 152 Comment
  HSC64817  Sedum spathulifolium var. spathulifolium J. P. Smith, J. O. Sawyer 1976-5-2 8627 Humboldt 3.96 mi. N of junction with Hwy. 299 on Hwy. 96 Comment
  SEINET11722735  Selaginella bigelovii E. A. York 1990-1-10 2658 Humboldt USGS Redwood Field Station, Arcata Comment
  CDA32353  Selaginella kraussiana G. F. Hrusa, R. Bencie, L. Bencie, C. & E. Dogwin 2010-12-29 18277 Humboldt North Coast; Forest E of Humboldt St. Univ., above Fern Lake. 47 Comment
  HSC925  Selaginella oregana J. P. Tracy 1933-5-18 12196 Humboldt Mad River, near Blue Lake 15 Comment
  HSC95089  Senecio elegans Andrea Pickart 2002-6-4 116 Humboldt N of 'Power pole' site Comment
  UCD135494  Senecio glomeratus Linda M. Barker 1976-7-5 1634 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC364018  Senecio integerrimus var. major L. B. Kildale 1928-5-27 5957 Humboldt Kneeland Prairie 853 Comment
  UC176813  Senecio integerrimus var. major Joseph P. Tracy 1913-6-17 4160 Humboldt near the summit Buck Mountain; Northern Coast Ranges 1524 Comment
  UC581708  Senecio integerrimus var. major Joseph P. Tracy 1935-7-28 14326 Humboldt Head of Devils Hold Trinity Summit 1828 Comment
  HSC96207  Senecio integerrimus var. major J. McIntire, S. Lyon 2005-6-8 5 Humboldt Cold Springs Camp; 7.4 S of Hwy. 299 on FS Rd. NF1 1402 Comment
  UC205168  Senecio minimus Joseph P. Tracy 1919-8-31 5185 Humboldt Eureka 0 Comment
  UC1199490  Senecio minimus Joseph P. Tracy 1920-9-19 5400 Humboldt along newly constructed road, North Fork of Mad River; Northern Coast Ranges 304 Comment
  CAS-BOT-BC364224  Senecio sylvaticus Alice Eastwood May 15 s.n. Humboldt Samoa Comment
  HSC67893  Senecio vulgaris J. P. Smith 1973-5-26 6840 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC90383  Senecio vulgaris Jean Hanson 1980-4-12 48 Humboldt Eureka, Indian Island in Humboldt Bay, W end of island. Comment
  CHSC57336  Sequoia sempervirens Michelle Y. Wagner 1990-4-10 15 Humboldt Hope creek trail, 5 miles n of Orick. Ravine on w side of Hwy 101. 152 Comment
  POM302258  Sequoia sempervirens Robert Benson 1949-9-4 s.n. Humboldt 10 miles north of Garberville, South Fork of Eel River, North Coast Ranges, Eel River drainage area 122 Comment
  SEINET3876306 Image available Sequoia sempervirens K. S. Erdman 1970-6-19 4840 Humboldt Redwood Creek, about 2-3 miles above the road end. Near McArthur and Elam Creeks, Redwood National Park.; 0 Comment
  HSC12661  Sherardia arvensis J. F. Knezevich 1968-5-21 444 Humboldt 20 mi. E of Arcata on Hwy. 299 at Lord Ellis Summit Comment
  CAS-BOT-BC205568  Sidalcea malachroides Doris K. Kildale 1927-7-2 3628 Humboldt Lord-Ellis road Comment
  CAS-BOT-BC205596  Sidalcea malviflora Peter H. Raven; R. Snow 1958-7-20 13639 Humboldt 2.0 miles south of junction of Friday Ridge Road on Titlow Hill Road, near Grouse Mountain Comment
  HSC100572  Sidalcea malviflora Carl C. Marshall Jun 1887 445 Humboldt East branch. 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
  UC176968  Sidalcea malviflora subsp. patula Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3598 Humboldt near Hydesville; Northern Coast Region, near Hydesville 30 Comment
  CDA18218  Silene californica G. D. Barbe, T. C. Fuller 1974-6-17 1846 Humboldt North Coast Ranges; Shelter Cove, Upper Pacific Drive, at Sea View Rd. 91 Comment
  UC1198362  Silene californica Joseph P. Tracy 1898-7-13 267 Humboldt near Hydesville; Northern Coast Region, near Hydesville 60 Comment
  RSA46875  Silene californica Doris K. Kildale 1927-7-22 3816 Humboldt Lasseck s Peaks Comment
  JEPS23250  Silene campanulata Joseph P. Tracy 1932-7-18 10704 Humboldt head of Brett Hole , head of Brett Hole (Trinity Summit) 1828 Comment
  UC668096  Silene campanulata Joseph P. Tracy 1937-7-29 15591 Humboldt w slope near top South Fork Mountain (at Hyampom Trail); , at Hyampom Trail 1676 Comment
  CAS-BOT-BC174881  Silene campanulata subsp. glandulosa Volney Rattan 1903-1-1 s.n. Humboldt Hoopa Valley Comment
  HSC102130  Silene campanulata subsp. glandulosa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1034 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC57999  Silene campanulata subsp. glandulosa G. L. Clifton, Griswold 1979-7-31 11778 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CAS-BOT-BC387078  Silene gallica Doris K. Kildale 1927-5-15 3166 Humboldt Cape Mendocino Comment
  UC302998  Silene grayi Joseph P. Tracy 1926-6-20 7628 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  UC668082  Silene grayi Joseph P. Tracy 1932-7-12 10477 Humboldt Head of Brett Hole Trinity Summit 1828 Comment
  HSC63145  Silene grayi M. A. Baker 1979-6-27 937 Humboldt Below Trinity Summit at head of Oregon Creek Comment
  CAS-BOT-BC181246  Silene hookeri subsp. bolanderi Alice Eastwood; John Thomas Howell 1937-6-23 4799 Humboldt Little Van Duzen River Comment
  UCR40032  Silene hookeri subsp. bolanderi T. Jimerson 1983-5-26 s.n. Humboldt Six Rivers National Forest, Lower Trinitty Road; roadside bank on the road to Brush Mountain Lookout off Friday Ridge Road. (6N08) 1088 Comment
  CAS-BOT-BC389069  Silene laciniata subsp. californica W. R. Dudley 1899-6-20 s.n. Humboldt South Fork of Eel River Comment
  HSC4162  Silene laciniata subsp. californica G. N. Bos 1965-5-15 277 Humboldt Berry Summit near Hwy. 299 793 Comment
  HSC4164  Silene laciniata subsp. californica D. E. Anderson 1965-5-15 3709 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC70825  Silene laciniata subsp. californica M. A. Baker 1980-6-7 1819 Humboldt Near Ammon Creek 115 Comment
  SBBG21920  Silene laciniata subsp. californica D. Myrick 1964-7-26 976 Humboldt Hwy 299 ca. 15 mi E of Arcata 762 Comment
  CAS-BOT-BC389055  Silene laciniata subsp. californica Carl B. Wolf 1927-8-27 1161 Humboldt On the Klamath River 11 miles above Weitchpec Comment
  HSC4163  Silene laciniata subsp. californica Francis Winter 1960-5-7 Humboldt 2 mi. E of Pine Ridge Summit along hwy. 610 Comment
  SEINET7879022 Image available Sisyrinchium bellum C. C. Harris, S. K. Harris 1942-1 s.n. Humboldt 3 mile north and 1 mile west of Fernbridge 33 Comment
  UC15044  Smilacina stellata J. P. Tracy 1901-4-26 1057 Humboldt Humboldt Hill Immediate Vicinity of Eureka 0 Comment
  HSC47104  Solanum aviculare J. O. Sawyer 1978-11-5 3324 Humboldt Old Stagecoach rd. 1/5 mi. N of entrance to Trinidad Beach State Park Comment
  UC577351  Solanum umbelliferum Joseph P. Tracy 1937-5-30 15313 Humboldt near Bosworth's (Larrabee Creek); Northern Coast Ranges, Larrabee Creek 457 Comment
  CAS-BOT-BC385867  Solidago canadensis Mrytle Paulson 1918-4-1 s.n. Humboldt Eureka Comment
  CAS-BOT-BC365438  Solidago elongata H. E. Parks; S. T. Parks 1937-9-1 24081 Humboldt Spruce Cove, Trinidad 64 Comment
  HSC102169  Solidago elongata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1081 Humboldt Patterson Meadows 1555 Comment
  HSC47012  Solidago spathulata Sheila Logan 1978-11-23 220 Humboldt Manila; 1/4 mi. W of the junction of Samoa Blvd. and Redwood Gun Club Rd. 3 Comment
  POM254120  Solidago spathulata S. K. Harris 1939-9-5 990 Humboldt At Samoa. Comment
  SD38300  Solidago spathulata Edith A. Purer 1932-7-27 4147 Humboldt Samoa Comment
  UC1478656  Solidago spathulata Robert F. Thorne 1974-7-29 45070 Humboldt between Humboldt Bay and Pacific Ocean (Samoa Dunes); Samoa Dunes Comment
  CAS-BOT-BC364970  Solidago velutina subsp. californica Carl B. Wolf 1927-8-29 1198 Humboldt 7 mi. s. of Ferndale & Capetown, Bear River Ridge, Mt. Glen Comment
  UC127601  Soliva sessilis Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5684 Humboldt Hoopa Mt. North-Western California, Hoopa Mt. Comment
  HSC78964  Soliva sessilis L. P. Janeway, K. Berg 1984-4-11 721 Humboldt N Spit of Humboldt Bay, turnout along Samoa Rd., across from boat ramp just N of Coast Guard Station 3 Comment
  HSC26465  Sonchus asper T. O. Osborne 1970-7-18 24 Humboldt Sugarloaf Rock, Cape Mendocino 76 Comment
  CAS-BOT-BC374425  Sonchus asper F. A. MacF. 1934-6-22 13743 Humboldt Arcata, North coast of California Comment
  HSC39938  Sonchus oleraceus Linda M. Barker 1976-7-5 1644 Humboldt 3 mi. W of Arcata Comment
  HSC40944  Sonchus oleraceus Linda M. Barker 1976-6-1 1546 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC36097  Sparganium angustifolium Ken Harrington 1973-10-7 Humboldt Log pond in Arcata Comment
  POM312952  Sparganium angustifolium subsp. emersum S. Galen Smith, Malcolm A. Nobs 1949-8-9 1228 Humboldt 1 mile north of Arcata at junction of Highways 101 and 299, Mad River Valley. Comment
  CHSC85475  Spartium junceum Spadoni 2002-6-26 P 070828 Humboldt Along country road in the vicinity of Garberville. Comment
  CAS-BOT-BC390304  Spergularia macrotheca var. macrotheca S. K. Harris 1936-6-7 3225 Humboldt Eureka Comment
  UC13088  Spiraea douglasii Harley P. Chandler May 1901 1197 Humboldt Humboldt Bay; North Coast Ranges 30 Comment
  HSC55064  Spiranthes romanzoffiana G. L. Clifton, Griswold 1979-7-31 11631 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC35344  Spiranthes romanzoffiana A. Montalvo, J. D. Ackerman 1975-8-22 643 Humboldt N of College Cove, Trinidad State Beach Park Comment
  UC1196398  Spiranthes romanzoffiana Mrs. Alma Bonstell 1912-8-5 Humboldt Christmas Prairie Northern Coast Ranges 914 Comment
  UC630639  Stachys ajugoides var. ajugoides Joseph P. Tracy 1939-6-23 16312 Humboldt Park's garden Trinidad 3 Comment
  UC535709  Stachys ajugoides var. rigida Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove 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
  UC1239725  Stachys ajugoides var. rigida Joseph P. Tracy 1943-7-11 17434 Humboldt Park's garden Trinidad 3 Comment
  UCLA70874  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-9 15874 Humboldt 2 mi s Blocksburg 304 Comment
  UCLA70877  Stachys ajugoides var. rigida Joseph P. Tracy 1938-7-12 16054 Humboldt Table Bluff Beach, lowlands at w foot of bluff Table Bluff 6 Comment
  UCLA71115  Stachys ajugoides var. rigida H. Lewis 1940-7-3 Humboldt Little River Beach State Park Comment
  HSC12030  Stachys arvensis D. Santana 1970-11-2 113 Humboldt 14th and B St. Arcata Comment
  POM92413  Stachys emersonii L. R. Abrams 1922-6-25 s.n. Humboldt 2 miles south of Fortuna Comment
  HSC23710  Stachys rigida Tim Baroni 1971-6-25 38 Humboldt Comment
  RSA20845  Stachys rigida subsp. quercetorum Carl B. Wolf 1937-6-18 8885 Humboldt Table Bluff between Humboldt Bay and Eel River. 30 Comment
  UC1116226  Stellaria borealis subsp. sitchana Joseph P. Tracy 1947-8-24 17904 Humboldt Box Camp; Trinity Summit 1463 Comment
  SEINET200613  Stellaria borealis subsp. sitchana Joseph P. Tracy 27 Jun - 30 Jul 1908 2884 Humboldt Valley of Van Duzen River, opposite Buck Mountain. 762 Comment
  HSC39800  Stellaria media Peter Sorensen 1976-6-11 Humboldt Woodley Island Comment
  HSC4276  Stellaria media D. B. Bader 1963-2-17 32 Humboldt Second of the Clam Beach Lagoons W. of Hwy.101 Comment
  JEPS51121  Stellaria media Lincoln Constance 1934-5-31 754 Humboldt Bull Creek Flat South Fork Eel River, Bull Creek Region (along Bull Creek, from w boundary of park to Grasshopper Pk (Squaw Cr) rd, n side of creek) Comment
  HSC4279  Stellaria media Jack Rockwell 1962-4-5 30 Humboldt N bank of Van Duzen River, E of Hwy. 101 Comment
  HSC89487  Stellaria media P. A. Daly 1986-3-12 67 Humboldt Trinidad Head, along trail 61 Comment
  UC1103550  Stellaria nitens Joseph P. Tracy 1927-6-12 8147 Humboldt Horse Mountain 1432 Comment
  SEINET10603857  Stipa lemmonii Henry N. Bolander Bolander 6469 Humboldt Moist Places. Red Mountain. Comment
  HSC97389  Stipa lepida J. P. Tracy 1933-5-20 12247 Humboldt Grassy hillside near Petrolia, Mattole Valley 152 Comment
  CAS-BOT-BC87607  Streptanthus tortuosus Doris K. Kildale 1928-5-27 5955 Humboldt Kneeland Prairie. 853 Comment
  UC1281747  Streptanthus tortuosus Richard Spellenberg 1965-6-14 1130 Humboldt rocky outcrops in grassland s airport (about 5 mi e of Kneeland) Comment
  UCD116417  Streptanthus tortuosus Richard Spellenberg 1965-6-14 1130 Humboldt south of airport, about 5 miles east of Kneeland. Comment
  UC1198802  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1933-6-13 12562 Humboldt on road w from Hoopa to Bair's near summit; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  HSC39681  Streptanthus tortuosus var. tortuosus Thomas W. Nelson 1976-6-16 2741 Humboldt Just W of Alder Springs. 1524 Comment
  HSC58078  Streptopus amplexifolius G. L. Clifton, Griswold 1979-8-1 11980 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 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
  HSC100413  Symphoricarpos racemosus Carl C. Marshall Jun 1886 291 Humboldt Coyote Camp. Comment
  CAS-BOT-BC98928  Symphyotrichum foliaceum var. parryi Joseph P. Tracy 1937-8-12 15634 Humboldt Snow Camp 1402 Comment
  SEINET11071783 Image available Symphytum asperum Johnnie L. Gentry Jr., Earl Jensen 1968-1 2120 Humboldt Approx. 2 miles east of Hwy. jct. US 101 & Tompkins Hill Rd., on Tompkins Hill Road, south of Eureka 30 Comment
  HSC26095  Synthyris reniformis Tim Baroni 1973-1-2 Humboldt 1.9 mi. above Angel Ranch on the road to Snow Camp 793 Comment
  RSA279358  Synthyris reniformis Joseph P. Tracy 1941-4-8 16810 Humboldt Willow Creek Canyon, along Trinity Hwy. 610 Comment
  UC1198055  Synthyris reniformis Joseph P. Tracy 1927-4-23 7918 Humboldt Blue Lagoon; Northern Coast Region 6 Comment
  UC902236  Synthyris reniformis Joseph P. Tracy 1941-3-26 16812 Humboldt Willow Creek Canyon, along Trinity Highway, near crossing of East Fork Willow Creek Canyon 457 Comment
  UCD86204  Taeniatherum caput-medusae Eugene C. Whitney 1960-8-4 Humboldt Mary White prop., Fruit Ranch, E/Rainbow Peak, Upper Bear River. Comment
  CAS-BOT-BC376725  Tanacetum bipinnatum Doris K. Kildale 1926-6-29 2245 Humboldt Mouth of Mad River Comment
  HSC33751  Tanacetum bipinnatum A. Montalvo 1975-5-24 288 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  UC1199290  Tanacetum camphoratum J. P. Tracy 1901-8-7 1269 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach Comment
  UC249808  Tanacetum camphoratum Joseph P. Tracy 1923-6-17 6270 Humboldt Northern Coast Region, on Big Lagoon Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  RSA233223  Tanacetum camphoratum P. H. Raven 1962-8-31 18079 Humboldt Dry Lagoon State Park. Comment
  CAS-BOT-BC376776  Tanacetum parthenium Ynez Whilton Winblad 1941-6-24 s.n. Humboldt Between Garberville and Pepperwood Comment
  HSC97580  Taraxacum officinale C. Witte 2007-5-18 37 Humboldt Along National Forest 1. Approximately 1 mile north of intersection with 5N09. 1456 Comment
  UC1196938  Taraxia ovata Joseph P. Tracy 1939-4-18 16215 Humboldt w side of river Garberville 152 Comment
  UC642289  Tauschia kelloggii Joseph P. Tracy 1936-8-2 15079 Humboldt French Camp Ridge 1066 Comment
  HSC74647  Taxus brevifolia M. A. Baker 1980-5-17 1214 Humboldt Near Le Perron Peak 792 Comment
  SD62056  Taxus brevifolia Darley F. Howe 1965-8-10 Humboldt 9.8 miles west of Willowcreek on U. S. #299 885 Comment
  HSC45268  Tellima grandiflora M. Alcasas 1978-6-3 121 Humboldt Titlow Hill Rd. 0.8 mi. from Hwy. 299 1113 Comment
  RSA24189  Tellima grandiflora Carl B. Wolf 1941-3-2 4062 Humboldt N Coast Range. Bull Creek-Petrolia Road. 12 miles W of Redwood Highway. 457 Comment
  SEINET12101361  Thalictrum polycarpum J. P. Tracy 1950-1 18879 Humboldt Burr Valley, on northwest slope of Buck Mountain 1067 Comment
  HSC103126  Thelypteris nevadensis M. Mesler 2009-7-19 810 Humboldt South Fork Mtn. Along FS 1, 11.8 miles from intersection with rd 4N12 1486 Comment
  HSC61646  Thermopsis macrophylla Ruby Van Deventer 1959-6-20 Humboldt Humboldt-Del Norte Co. line, Onion Lake 1067 Comment
  RSA75601  Thermopsis robusta Albert M. Vollmer, L. Beane 1951-06 s.n. Humboldt On trail to Blohn's cabin, Bald Mountain, east of Korbel Comment
  CAS-BOT-BC5391  Thlaspi californicum Volney Rattan 1882-6-1 s.n. Humboldt at Kneeland Prairie Comment
  HSC91618  Thuja plicata E. Mackey 1986-10-7 Humboldt Patrick's Point State Park along Patrick's Point Drive Comment
  UCD170787  Thuja plicata Gordon Leppig 1998-3-15 718 Humboldt Quarry Rd. off Jacoby Creek. 97 Comment
  UC1198814  Thysanocarpus curvipes Joseph P. Tracy 1939-4-29 16242 Humboldt Klamath River at mouth of Slate Creek; Klamath River at mouth of Slate Creek 121 Comment
  HSC6993  Thysanocarpus curvipes J. E. Lankila 1962-5-14 17 Humboldt W bank of river, 0.5 mi. S of Fernbridge Comment
  UC1198817  Thysanocarpus curvipes Joseph P. Tracy 1920-5-18 5321 Humboldt Look Prairie Northern Coast Ranges, on Bull Creek (on Bull Creek) 152 Comment
  UC1198818  Thysanocarpus curvipes Joseph P. Tracy 1927-5-15 8047 Humboldt Hoopa Northern Coast Ranges, Hoopa (hillsides along Supply Creek) 304 Comment
  CAS-BOT-BC436936  Tiarella trifoliata var. unifoliata Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC55631  Tiarella trifoliata var. unifoliata Overton, Butler 1979-7-24 9633 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UCR3513  Tiarella trifoliata var. unifoliata David Whistler, H. M. Whistler 1964-7-29 640729- 5 Humboldt 0.2 mi north of Meyers Flats on U.S. 101 75 Comment
  HSC97516  Tolmiea diplomenziesii Kay Izlar 2001-3-24 7 Humboldt HSU forest along Jolly Giant Creek 43 Comment
  HSC74665  Tonella tenella Gail Newton 1981-6-6 2189 Humboldt Near Pilot Ridge Trail 1314 Comment
  HSC44766  Torilis arvensis Maralyn O'Meara 1972-6-9 89 Humboldt Along bald Hills Rd. 16.4 mi. E of jct. with Hwy. 101 Comment
  HSC45069  Torilis arvensis R. Sutherland 1978-5-16 7 .16578 Humboldt 155 Comment
  HSC58686  Torreyochloa pallida var. pauciflora Overton 1979-8-1 12380 Humboldt Near Mill Creek, close to the town of Hoopa 1341 Comment
  CAS-BOT-BC169181  Toxicodendron diversilobum Doris K. Kildale 1928-5-31 5114 Humboldt Chalk Mountain Comment
  IRVC21927  Toxicodendron diversilobum J. W. Johnson Jul 1962 1397 Humboldt Base of the Samoa Peninsula in the Lamphere-Christensen Dunes Preserve. Comment
  UC902124  Toxicodendron diversilobum Joseph P. Tracy 1949-8-8 18404 Humboldt Trinity R. Valley at Willow Creek Trinity R. Valley, Willow Creek 152 Comment
  SEINET12238542  Toxicodendron diversilobum F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -300 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  UC1222896  Tracyina rostrata Joseph P. Tracy 1950-6-23 18859 Humboldt 3 mi ne Alderpoint; Dobbyn Creek 213 Comment
  BLMAR387  Triantha occidentalis Jennifer Anthony-Wheeler 2004-7-1 387 Humboldt Horse Mtn, mixed conifer in serp.seep Comment
  JEPS63134  Trichostema lanceolatum Joseph P. Tracy 1916-9-6 4759 Humboldt Grasshopper Ridge, head of Canoe Creek Northern Coast Ranges 609 Comment
  HSC27399  Trichostema laxum Thomas W. Nelson 1970-9-3 214 Humboldt Mad River. Comment
  RSA1500  Trichostema laxum E. R. Johnson 1929-08 1435 Humboldt Along the Eel River. Comment
  UC32547  Trichostema laxum Chestnut and Drew 1888-7-12 Humboldt Campbell's Comment
  UC1052444  Trientalis latifolia H. E. and S. T. Parks 1952-6-1 7548 A Humboldt Trinidad, Spruce Cove Spruce Cove; Trinidad, Spruce Cove 60 Comment
  UC1223382  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1933-5-20 12248 Humboldt 1 mile west Petrolia (Mattole Valley); Northern Coast Ranges Comment
  UC495669  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1932-5-1 9894 Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  UC249524  Trifolium bifidum var. bifidum Joseph P. Tracy 1922-4-30 5992 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC104457  Trifolium campestre Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 18 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC45303  Trifolium campestre Ed Cope 1978-5-30 Humboldt Along old Hwy. 101, S of Trinidad Comment
  UC1197495  Trifolium cyathiferum Joseph P. Tracy 1933-7-15 12735 1/2 Humboldt lower foothills of nw slope; Buck Mtn Comment
  UC1223482  Trifolium cyathiferum Joseph P. Tracy 1935-5-25 13891 Humboldt along north Dobbyn Creek 152 Comment
  UC162801  Trifolium cyathiferum Joseph P. Tracy 1903-5-23 1902 Humboldt along Eel River (Alder Point); Northern Coast Ranges 91 Comment
  HSC45124  Trifolium depauperatum R. Sutherland 1978-5-2 1 .2578 Humboldt 341 Comment
  SEINET12157150  Trifolium depauperatum J. P. Tracy 1933-1 12242 Humboldt Petrolia, Mattole Valley Comment
  RSA168861  Trifolium dichotomum Joseph P. Tracy 1943-5-9 17420 Humboldt Trinity River at Willow Creek. Comment
  HSC104458  Trifolium dubium Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 11 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  UC631194  Trifolium dubium Mrs. M. H. Manning 1900-1-1 Humboldt near Hupa Comment
  UC1602084  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-8 8728 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1223460  Trifolium fragiferum Joseph P. Tracy 1933-8-22 12986 Humboldt 1 mi w Loleta Comment
  HSC27094  Trifolium fragiferum Thomas W. Nelson 1970-10-31 292 Humboldt N end of the Carson Bridge Comment
  HSC46037  Trifolium fucatum Catherine Chin 1978-5-5 56 Humboldt 17.4 mi. S of Ferndale on Mattole Rd. 91 Comment
  UC1223457  Trifolium fucatum Joseph P. Tracy 1935-5-25 13831 Humboldt Blocksburg Comment
  UC1223458  Trifolium fucatum Joseph P. Tracy 1938-6-17 15950 Humboldt s Cape Ridge (near ocean); Cape Mendocino Comment
  UC1223454  Trifolium gracilentum Joseph P. Tracy 1934-5-13 13203 Humboldt near Samoa Comment
  HSC97455  Trifolium hirtum Cara Witte 2007-6-7 226 Humboldt Along National Forest 1 on Kinsey Ridge. 1 mile south of intersection with 4N06. 1263 Comment
  HSC48764  Trifolium longipes Brad Klipfel 1973-6-10 100 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS33188 Image available Trifolium longipes subsp. elmeri Chesnut and Drew August, 1888 240 Humboldt S. Fork Trinity River. Comment
  HSC98891  Trifolium longipes subsp. shastense Cara Witte 2008-7-1 779 Humboldt Spike Buck Mountain. Forest Service Road 5N18. Near intersection with National Forest 1. 1462 Comment
  POM214885  Trifolium macraei Joseph P. Tracy 1927-6-8 8114 Humboldt Trinidad. 15 Comment
  UC1223360  Trifolium macraei Joseph P. Tracy 1936-5-30 14841 Humboldt Samoa Sand Dunes Comment
  UC1223358  Trifolium macraei Joseph P. Tracy 1933-5-20 12222 Humboldt s point of cape (near ocean shore); Cape Mendocino 3 Comment
  UC160906  Trifolium microcephalum Joseph P. Tracy 1910-6-5 3144 Humboldt Ocean Beach Northern Coast Ranges, Humboldt Bay Comment
  HSC45144  Trifolium microdon R. Sutherland 1978-5-19 15 .19578 Humboldt 165 Comment
  JEPS66102  Trifolium obtusiflorum Lincoln Constance 1934-5-26 669 Humboldt s end Dyerville Bridge; South Fork Eel River, Bull Creek Region Comment
  UC1223339  Trifolium obtusiflorum Joseph P. Tracy 1933-6-11 12555 Humboldt 4 mi s Dyerville (along hwy, along South Fork Eel River) Comment
  HSC45134  Trifolium oliganthum R. Sutherland 1978-5-21 2 .21578 Humboldt 433 Comment
  RSA273375  Trifolium oreganum Thomas W. Nelson, Jane P. Nelson 1976-6-15 2711 Humboldt Along old trail from lookout to Blocksburg 1555 Comment
  HSC89587  Trifolium repens M. Roantree 1985-5-24 62 Humboldt E side of Trinidad Head Comment
  UC1197045  Trifolium resupinatum J. P. Tracy 1896-5 105 Humboldt immediate vicinity Eureka (J and 14th St.) 0 Comment
  UC1223321  Trifolium variegatum var. melananthum Joseph P. Tracy 1935-5-25 13861 Humboldt Fort Seward 106 Comment
  UC1197553  Trifolium variegatum var. melananthum Joseph P. Tracy 1930-5-18 8695 Humboldt Roseville golf course Northern Coast Ranges 152 Comment
  UC1197561  Trifolium variegatum var. variegatum Joseph P. Tracy 1932-5-1 9881 Humboldt Garberville vicinity Northern Coast Ranges 121 Comment
  UC1197517  Trifolium willdenovii Joseph P. Tracy 1932-6-4 10131 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  HSC31739  Trifolium willdenovii Donald Spalinger 1974-5-12 57 Humboldt Williams Ridge Rd., 1 mi. N from junction with Bald Hills Rd. 732 Comment
  UC1197514  Trifolium willdenovii Joseph P. Tracy 1932-5-17 10068 Humboldt at Berry's Redwood Creek; Northern Coast Ranges 274 Comment
  UC1197520  Trifolium willdenovii Joseph P. Tracy 1911-6-25 3261 Humboldt Bucksport Northern Coast Ranges 0 Comment
  UC1223313  Trifolium willdenovii Joseph P. Tracy 1950-5-6 18640 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1197037  Trifolium wormskioldii Joseph P. Tracy 1911-6-30 3727 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC168972  Trifolium wormskioldii Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3590 Humboldt near Hydesville Northern Coast Ranges 30 Comment
  JEPS37724  Trifolium wormskioldii Joseph P. Tracy 1918-7-3 4991 Humboldt Shelter Cove Northern Coast Ranges 15 Comment
  POM349599  Trifolium wormskioldii J. P. Smith, Thomas W. Nelson 1977-6-30 9207 Humboldt Samoa Peninsula just east of the drag strip. Comment
  UC631039  Trifolium wormskioldii P. B. Kennedy 1925-8-29 Humboldt near Eureka Comment
  UC1100175  Triglochin maritima Malcolm A. Nobs and S. Galen Smith 1949-8-3 1169 Humboldt 1 mi s Fields Landing; Eel River Valley Comment
  HSC93841  Triglochin striata Gordon Leppig 1999-10-25 1267 Humboldt Hwy. 101, mi. marker 61.40, E side of Hwy. 2 Comment
  HSC97468  Trillium albidum Cara Witte 2007-5-8 4 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1410 Comment
  UC175295  Trillium albidum Joseph P. Tracy 1913-6-17 4181 Humboldt near summit Buck Mt.; Northern Coast Ranges 1676 Comment
  HSC101798  Trillium albidum Kjirsten A. Wayman 2011-6-5 279 Humboldt Near Cold Spring camp, 7.4 mi. south of Hwy 299 on Titlow Hill Rd., N 40.82998 deg. W 123.71219 deg. 1408 Comment
  HSC15688  Trillium albidum D. E. Anderson 1963-5-25 2475 Humboldt 5 mi. N of Capetown along rd. Comment
  UC176697  Trillium albidum Joseph P. Tracy 1913-6-25 4333 Humboldt opposite Buck Mt. (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen R. 762 Comment
  CAS-BOT-BC519078  Trillium angustipetalum Doris K. Kildale 1926-3-27 1659 Humboldt Wiregrass Prairie in Bald Hills Comment
  HSC15690  Trillium kurabayashii H. S. Logsdon 1964-4-11 8 Humboldt 4 mi. NE of Orick at Boye's Prairie Comment
  HSC15694  Trillium ovatum V. G. Vieira 1963-3-10 37 Humboldt Essex Pond Comment
  SDSU11973  Trillium ovatum Leslie Hickson 1990-4-15 15 IV90F Humboldt Oak Street 0.5 miles north of Freshwater. Off the right side of the road under the Redwood tees. Eureka, Ca. Comment
  UC175281  Trillium ovatum Joseph P. Tracy 1913-6-26 4350 Humboldt opposite Buck Mt. (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen R., Dinsmore's Ra 762 Comment
  CAS-BOT-BC521319  Trillium rivale Volney Rattan 1883-6-1 s.n. Humboldt Willow Creek; Pacific Coast Comment
  UC27181  Triphysaria eriantha subsp. eriantha C. C. Marshall 1888-1 Humboldt Comment
  UC176946  Triphysaria pusilla Joseph P. Tracy 1913-6-18 4196 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC179947  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1914-5-14 4472 Humboldt Fort Seward; Northern Coast Ranges, Fort Seward 121 Comment
  UC902246  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1944-5-14 17468 Humboldt Eureka 6 Comment
  UC1011929  Triphysaria versicolor subsp. versicolor F. W. Pennell and J. P. Tracy 1940-7-8 26108 Humboldt e Eureka (Freshwater); Freshwater 9 Comment
  RSA44448  Trisetum canescens Henry M. Pollard 1948-7-18 s.n. Humboldt Near Orleans. Comment
  UCD93602  Trisetum canescens P. B. Kennedy 1923-8-2 s.n. Humboldt Bluff Creek to Arcata. Comment
  UCD93901  Trisetum cernuum Freed W. Hoffman 1946-5-23 1722 Humboldt Boise Park, Willow Creek. Comment
  UC1197713  Triteleia hyacinthina Joseph P. Tracy 1925-5-30 7047 Humboldt McClellan Mountain Northern Coast Ranges, McClellan Mountain 822 Comment
  UC175817  Triteleia laxa Joseph P. Tracy 1912-6-30 3711 Humboldt Eureka Northern Coast Region 0 Comment
  UC1197721  Triteleia laxa J. P. Tracy 1906-6-24 2504 Humboldt s slope of hill near Fields Landing; Humboldt Hill 30 Comment
  UC422834  Triteleia laxa P. E. Goddard 1907-5-29 b. 110 Humboldt Van Duzen Comment
  UC666896  Triteleia laxa Joseph P. Tracy 1938-7-5 16001 Humboldt in woods by old Strong's District School House (5 mi e of Carlotta) 45 Comment
  IRVC27661  Triteleia peduncularis J. P. Tracy 1898-7-5 266 Humboldt Immediate vicinity of Eureka; near Ryan's Slough Hill. 0 Comment
  CHSC79895  Triticum aestivum Gordon Leppig; Sylvia Leppig, Kai Neander 2000-4-14 1293 Humboldt Arcata, UTM zone 10, 4525N, 409E. 3 Comment
  UC1103154  Triticum vulgare Joseph P. Tracy 1916-8-20 4751 Humboldt Eureka Northern Coast Ranges 0 Comment
  CAS-BOT-BC85899  Tsuga heterophylla Doris K. Kildale 1927-5-13 3127 Humboldt Green Point, Redwood Creek Road Comment
  HSC79507  Umbellularia californica Kenneth Clark 1980-3-27 564 Humboldt Dead Man's Gulch, throughout Shelter Cove 69 Comment
  UC249701  Umbellularia californica Joseph P. Tracy 1921-2-27 5415 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  SEINET12103378  Umbellularia californica J. P. Tracy 1950-12-10 s.n. Humboldt no further locality Comment
  HSC55012  Vaccinium membranaceum G. L. Clifton 1979-7-31 11394 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC1197782  Vaccinium membranaceum Joseph P. Tracy 1932-7-20 10741 Humboldt Forks of Tish-Tang-A-Tang Creek Trinity Summit 1371 Comment
  HSC89511  Vaccinium ovatum M. Roantree 1985-4-25 6 Humboldt E side of Trinidad Head. Comment
  JEPS58743  Vaccinium ovatum J. P. Tracy 1904-4-17 2017 Humboldt immediate vicinity Eureka 0 Comment
  UC412666  Vaccinium ovatum Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  UCD118072  Vaccinium ovatum Linda M. Barker 1976-4-30 1423 Humboldt 3 miles west of Arcata. Comment
  HSC31487  Vaccinium parvifolium Steve Selva, Roger Jensen 1974-8-28 97 Humboldt Behind Humboldt State University, Arcata. Comment
  UC1225909  Vaccinium parvifolium Joseph P. Tracy 1943-3-14 17410 Humboldt Vicinity Carlotta 30 Comment
  UC602512  Valeriana sitchensis subsp. scouleri Joseph P. Tracy 1924-4-27 6643 Humboldt Willow Creek Canyon; Northern Coast Ranges 609 Comment
  HSC48152  Valeriana sitchensis subsp. sitchensis Brad Klipfel 1975-5-30 656 Humboldt N of Horse Mtn. Comment
  UC1239593  Valeriana sitchensis subsp. sitchensis Joseph P. Tracy 1937-7-29 15573 Humboldt in meadow at McKay Camp South Fork Mountain 1676 Comment
  CAS-BOT-BC76038  Vancouveria hexandra C. Hart Merriam 1922-7-5 s.n. Humboldt Fortuna. Carson Woods. Comment
  CAS-BOT-BC76093  Vancouveria planipetala M. S. Jussel 1931-5-2 113 Humboldt Garberville. Comment
  UC161073  Vancouveria planipetala Joseph P. Tracy 1911-7-7 3420 Humboldt Brannan Mountain viz. ridge n of Willow Creek between Willow and Campbell Creeks (near the summit); Northern Coast Ranges, Brannan Mountain, n Willow Creek 1219 Comment
  UC556336  Vancouveria planipetala Mrs. Emanuel Fritz 1935-1 Humboldt along Redwood Highway between Miranda and Dyerville Comment
  UC902013  Veratrum californicum var. californicum H. E. Parks and J. P. Tracy 1949-6-25 11676 Humboldt meadow Trinity Summit, Box Camp 1463 Comment
  HSC65844  Veratrum insolitum Gail Newton 1980-6-16 154 Humboldt Near Monks Camp. 1097 Comment
  SD51275  Veratrum insolitum Darley F. Howe 1961-8-2 3124 Humboldt 24 miles east of Orick, on Bald Mountain Road. 914 Comment
  SEINET3992207  Veratrum insolitum Unknown 1948-8-15 18120 Humboldt On ridge 2 mi E. of Grove's Prarie 1524 Comment
  HSC67839  Verbena lasiostachys J. P. Smith 1971-10-9 5027 Humboldt Mad River above the Fish Hatchery. Comment
  HSC98115  Verbena lasiostachys Cara Witte 2007-6-27 369 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Near intersection with 4N32B 1516 Comment
  SEINET1008963  Verbena lasiostachys Alma L. Moldenke, Harold N. Moldenke 1975-1 30232 Humboldt Van Duzen River valley east of Bridgeville, Humboldt County, California. 732 Comment
  UC1222772  Veronica americana Joseph P. Tracy 1950-6-8 18727 Humboldt 7 mi s of Ferndale (summit of Bear River Ridge, near Mount Glen Ranch); Bear River Ridge 609 Comment
  UC147898  Veronica peregrina subsp. xalapensis J. P. Tracy 1909-5-23 2976 Humboldt immediate vicinity of Eureka 0 Comment
  UC176046  Veronica peregrina subsp. xalapensis Joseph P. Tracy 1913-6-14 4136 Humboldt in Valley of Van Duzen River (opposite Buck Mountain, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  UCR143251  Veronica scutellata C. B. Wolf 1937-6-18 8895 Humboldt North Coast, 0.5 mi south of Fortuna 15 Comment
  JEPS12698  Viburnum ellipticum P. E. Goddard 1908-7-20 Humboldt 1 mi s Harris Comment
  HSC56370  Vicia americana var. americana Griswold, Butler 1979-7-11 6391 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC73534  Vicia americana var. americana Gail Newton 1980-7-14 1496 Humboldt Near Last Chance Ridge. 1219 Comment
  UC1197463  Vicia americana var. americana J. P. Tracy 1901-5-30 1111 Humboldt immediate vicinity Eureka 0 Comment
  UC33398  Vicia americana var. americana W. C. Blasdale 1896-6-7 Humboldt Graham's Comment
  UC495714  Vicia hirsuta H. E. Parks and Joseph P. Tracy 1931-5-23 9452 Humboldt vicinity Trinidad; Northern Coast Region 60 Comment
  RSA168921  Vicia hirsuta Joseph P. Tracy 1943-7-1 17428 Humboldt Vacant lot, 7th and I Streets, Eureka. (Same place as no. 17474). Comment
  POM161054  Vicia sativa Joseph P. Tracy 1926-5-2 7433 Humboldt Trinity River Valley, near the south fork. Comment
  UC709406  Vicia sativa subsp. nigra Joseph P. Tracy 1934-6-23 13248 Humboldt Arcata Bottom 15 Comment
  HSC89603  Vicia sativa subsp. nigra M. Roantree 1985-4-28 23 Humboldt E side of Trinidad Head, along dirt road Comment
  HSC15273  Vicia sativa subsp. sativa W. F. Nickel 1965-5-12 Humboldt On H.S.C. campus behind the Biological Sciences building Comment
  HSC44738  Vicia sativa subsp. sativa Maralyn O'Meara 1972-6-8 86 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  UC604647  Vinca major Joseph P. Tracy 1938-4-5 15703 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  UC1761428  Viola Milo S. Baker 1923-7-30 Humboldt 1/2 mi W of Fredericksons House (near Hwy from Eureka to Bridgeville on Van Dusen River) Comment
  CAS-BOT-BC263947  Viola adunca L. B. Kildale 1930-5-11 9543 Humboldt Bald Hills near [Tomlinson's?] 792 Comment
  POM161057  Viola cuneata Joseph P. Tracy 1926-6-6 7560 Humboldt Hoopa Mountain. On road west from Hoopa Valley. 915 Comment
  HSC56145  Viola glabella G. L. Clifton, Griswold 1979-8-1 11974 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UC668249  Viola glabella Joseph P. Tracy 1938-6-13 15912 Humboldt at Cold Springs Cold Springs; Grouse Mountain, Cold Springs 1432 Comment
  UCD164670  Viola glabella R. John Little; C. Little 1991-5-27 6484 Humboldt Kneeland Road ca. 3 mi E of Kneeland. (Exact location unknown. Coordinates estimated by label maker). 701 Comment
  HSC70321  Viola ocellata M. A. Baker 1980-6-7 1872 Humboldt Near Ammon Creek 732 Comment
  HSC95737  Viola sempervirens Steven Lee 2004-2-18 1 Humboldt Arcata Community Forest, Jolly Giant Creek; 5-20 ft. from water's edge Comment
  HSC98736  Viola sheltonii Cara Witte 2008-6-2 670 Humboldt Along National Forest 1. 1 mile north of 5N18 (road to Spike Buck Mt.) 1583 Comment
  CAS-BOT-BC203049  Vitis californica Doris K. Kildale 1928-6-17 5236 Humboldt Miranda, south fork of Eel River Comment
  HSC9825  Vulpia bromoides E. W. Styskel 1964-4-3 57 Humboldt 0.25 mi. S of Garberville along Sprowl Creek Rd. Comment
  HSC9837  Vulpia bromoides J. W. Johnson 1962-5-9 1347 Humboldt Christenson Farm, Samoa Peninsula. Comment
  RSA10149  Vulpia bromoides Joseph P. Tracy 1925-5-17 6980 Humboldt Trinity River Valley, near the South Fork. 183 Comment
  UC1103724  Vulpia bromoides J. P. Tracy 1899-4-30 308 Humboldt immediate vicinity Eureka 0 Comment
  UC204712  Vulpia microstachys var. microstachys Joseph P. Tracy 1918-5-26 4942 Humboldt Redwood Creek Northern Coast Ranges, Grouse Mt. (lower foothills of Grouse Mt) 762 Comment
  UC1155009  Vulpia microstachys var. pauciflora Richard Spellenberg 1965-6-14 1122 Humboldt about 2 mi e Kneeland; Kneeland Prairie Comment
  UC525649  Vulpia microstachys var. pauciflora Joseph P. Tracy 1933-6-13 12599 Humboldt near summit on road from Hoopa to Bair's; Hoopa Mountain 1066 Comment
  UCD94573  Vulpia microstachys var. pauciflora A. H. Murphy 1951-6-1 54 Humboldt South Fork Mtn. about 3 miles east of Low Gap. 822 Comment
  HSC70744  Vulpia myuros R. York 1980-5-17 539 Humboldt Near Le Perron Peak 1066 Comment
  HSC89911  Vulpia myuros Leonel Arguello 1989-8-20 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, alongside N Dune loop trail. Comment
  RSA244994  Vulpia myuros D. E. Anderson 1970-5-21 5078 Humboldt Scotia Bluffs Comment
  UCD94718  Vulpia myuros A. A. Beetle; G. L. Stebbins Jr. 1942-6-1 3456 Humboldt 2 miles north of Orleans. Klamath River. Comment
  CAS-BOT-BC184732  Vulpia myuros subsp. megalura Doris K. Kildale 1929-5-26 9131 Humboldt Klamath River at Orleans 152 Comment
  SEINET244937 Image available Vulpia myuros var. myuros J. P. Tracy 1914-1 4432 Humboldt Fort Seward. 122 Comment
  SEINET10609151  Vulpia myuros var. myuros Joseph P. Tracy 1914-5-14 Tracy 4432 Humboldt Fort Seward. 122 Comment
  CAS-BOT-BC128811  Whipplea modesta Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville Comment
  HSC20444  Whipplea modesta Francis Winter 1960-5-7 Humboldt 2 mi. N of Hwy. 299 on Redwood Valley Rd. 457 Comment
  POM281864A  Woodwardia fimbriata Lyman Benson 1928-7-9 396 Humboldt Weott Ranger Station. Seaward N Coast Range, S Fork Eel River watershed. 61 Comment
  CAS-BOT-BC382929  Wyethia angustifolia Doris K. Kildale 1927-7-1 3614 Humboldt Alton Hill 30 Comment
  CAS-BOT-BC382931  Wyethia angustifolia Doris K. Kildale 1926-5-2 1897 Humboldt Willow Creek Flat 152 Comment
  JEPS32104  Wyethia angustifolia W. L. Jepson 1934-5-8 16717 Humboldt n of Redway; South Fork Eel River Comment
  UC169296  Wyethia angustifolia Joseph P. Tracy 1912-7-21 3755 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC175391  Wyethia angustifolia Joseph P. Tracy 1913-6-10 4079 Humboldt bluff near Bucksport; Northern Coast Ranges, Eureka 0 Comment
  CAS-BOT-BC326979  Wyethia longicaulis Volney Rattan 1878-1-1 s.n. Humboldt Mad River Comment
  POM192569  Wyethia longicaulis H. E. Parks 1930-05 0740 Humboldt Laribee Valley Comment
  RSA441183  Xanthium strumarium M. B. Dunkle 1936-8-22 4856 Humboldt Williams Grove, Eel River. 213 Comment
  CAS-BOT-BC527077  Xerophyllum tenax Joseph P. Tracy 1937-8-15 15665 Humboldt French Camp 1066 Comment
  SEINET12197025  Zauschneria californica E. A. York 1990-1-10 2675 Humboldt USGS Redwood Field Station, Arcata Comment
  HSC8414  Zeltnera muehlenbergii J. P. Tracy 1938-7-18 16085 Humboldt Fickle Hill, 4 mi. S of Arcata 366 Comment
  HSC40300  Zigadenus micranthus Thomas W. Nelson, Jane P. Nelson 1976-7-1 2901 Humboldt Along ridge N of Bear Creek 1463 Comment
  HSC98861  Zigadenus micranthus Cara Witte 2007-5-29 128 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  UC15054  Zigadenus micranthus var. micranthus Joseph Burtt Davy 1899-6-10 5391 Humboldt Hubbard's Station Comment
  UC275515  Zigadenus micranthus var. micranthus Joseph P. Tracy 1924-7-4 6521 Humboldt Valley South Yager Creek; Northern Coast Ranges, Valley South Yager Creek 762 Comment
  HSC49625  Zostera marina R. York 1979-4-22 248 Humboldt Along bluffs just N of College Cove Comment



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