Search Results — 2000 specimen records retrieved (1342 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC99689  Abies concolor T. Jimerson, J. Pageau 1979-8-10 714 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  NY29281  Abies grandis J. P. Tracy 1932-3-20 9781 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  HSC74290  Abies procera M. A. Baker 1980-7-19 3041 Humboldt Near Bret Hole. 1814 Comment
  RSA168959  Abies procera G. L. Anderson 1962-8-21 5 Humboldt Six Rivers National Forest; Horse Trail Ridge, SW slope. 1829 Comment
  HSC100573  Abronia latifolia Carl C. Marshall May 1885 38 Humboldt Sea shore, Humboldt Bay. Comment
  RSA0025082  Abronia latifolia I. L. Wiggins 1930-7-7 4672 Humboldt Sand dunes near Samoa. Comment
  HSC41124  Abronia umbellata var. breviflora Thomas W. Nelson, Jane P. Nelson, James Nelson 1976-9-26 3265 Humboldt Along beach S of Fern Canyon. Comment
  UCD112493  Acaena novae-zelandiae D. W. Cooper 1966-10-10 s.n. Humboldt SE of Forest Service Nursey, ca. 2 miles SE of Crannell and ca. 4 miles E of US Highway 101. Comment
  CAS-BOT-BC330543  Acer circinatum Joseph P. Tracy 1942-7-26 17294 Humboldt Valley of South Yager Creek 609 Comment
  HSC2783  Acer circinatum L. J. Coombes 1964-5-16 33 Humboldt Camp Bowers, 3 mi. SE of Blue Lake 1524 Comment
  JEPS42651  Acer macrophyllum W. L. Jepson 1932-7-30 16448 Humboldt near Big Tree; Bull Creek, near Big Tree 121 Comment
  CDA9165  Achillea filipendulina F. Bapeaux 1975-7-7 Humboldt McKinleyville. 0 Comment
  HSC58006  Achillea millefolium G. L. Clifton, Griswold 1979-7-31 11793 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UCD128286  Achillea millefolium Linda M. Barker 1976-6-1 1541 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC12754  Achillea millefolium M. J. Athey 1970-12-5 26 Humboldt Along old road to Trinidad Head, Trinidad Comment
  SEINET11854568  Achillea millefolium J. P. Tracy 1947-1 17764 Humboldt Mouth of Little River Comment
  UC1222920  Achillea millefolium Joseph P. Tracy 1949-8-4 18418 Humboldt in serpentine area Mud Springs; Trinity Summit 1341 Comment
  UCD128333  Achillea millefolium H. E. Parks; S. T. Parks 1943-8-1 24246 Humboldt Egg Point, Trinidad. 121 Comment
  HSC61059  Achlys triphylla Jimerson, J. Pageau 1979-6-12 534 Humboldt Near Hopkins Butte, close to the town of Orleans 1036 Comment
  CAS-BOT-BC400021  Achlys triphylla W. R. Dudley 1899-6-18 s.n. Humboldt Near grade descending to Eel River Comment
  RSA183594  Achlys triphylla D. E. Anderson 1963-5-1 2201 a Humboldt 1 mile west of Hoopa Comment
  RSA21086  Achlys triphylla C. B. Wolf 1937-6-19 8914 Humboldt North Coast Range, 7.2 mi. above Bridgeville on grade to Dinsmores. 457 Comment
  UC1145039  Achnatherum lemmonii Joseph P. Tracy 1938-6-17 15968 Humboldt on road from Bull Creek to Upper Mattole (Panther Gap); Panther Gap 822 Comment
  UCD50689  Achnatherum lemmonii R. Tofsrud 1948-9-1 s.n. Humboldt Road junction near summit of Horse Mt. 1463 Comment
  UCD103756  Acmispon denticulatus R. Tofsrud 1951-1 s.n. Humboldt Location unknown. Comment
  HSC71443  Acmispon micranthus J. P. Smith 1971-10-9 5047 Humboldt Mad River above the Fish Hatchery. Comment
  HSC71610  Acmispon micranthus J. P. Smith, Steve Selva 1970-6-14 3845 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC99842  Aconitum columbianum subsp. viviparum T. Jimerson, J. Pageau 1979-8-10 737 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  SEINET12094122  Actaea rubra F. H. Utech 1988-1 88 -268 Humboldt 14 mi W of Bridgeville enroute to Carlotta on CA 36, Van Duzen County Park, Pamplin Grove 50 Comment
  SDSU19197  Adelinia grandis Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3007 Humboldt Six Rivers National Forest. From Hwy 299, take Titlow Hill Road (at Berry Summit) ca. 7.5 miles south, west 0.2 miles to Cold Spring. Ca. 0.2 mile south-southeast of Cold Spring. Ca. 3.3 aerial miles south-southeast of Horse Mtn. Radio Tower. 1416 Comment
  UC1102641  Adiantum X tracyi J. Neeman 1948-1 Humboldt near Garberville Comment
  UC1239781  Adiantum aleuticum Joseph P. Tracy 1926-6-20 7636 Humboldt Horse Mt; Northern Coast Ranges 1463 Comment
  HSC948  Adiantum aleuticum W. R. Supernaugh, Jr. 1964-12-4 12 Humboldt Along rd. to Jolly Giant Reservoir Comment
  POM182348  Adiantum aleuticum Joseph P. Tracy 1907-8-20 2604 Humboldt Hydesville 30 Comment
  POM347034  Adiantum aleuticum Lyman Benson 1928-7-13 487 Humboldt Weatt Ranger Station 61 Comment
  POM208978  Adiantum jordanii Lincoln Constance 1934-6-4 823 Humboldt rocky bluff above Dyerville-Bull Creek road, in Border Forest, Humbolt Redwood Park. 91 Comment
  UCSB29304  Adiantum jordanii Phelps, M. 1972-3-23 Humboldt 1.5mi from Garberville, along Old Briceland Rd., 1000 yards N of roadside 213 Comment
  HSC31797  Aesculus californica Steve Selva, Roger Jensen 1974-8-27 80 Humboldt W of Humboldt-Trinity co. line on Hwy. 299 Comment
  HSC54499  Agastache urticifolia G. L. Clifton, Griswold 1979-7-26 9358 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC54875  Agastache urticifolia G. L. Clifton, Griswold 1979-7-25 10852 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  RSA15581  Ageratina occidentalis Carl B. Wolf 1927-8-27 s.n. Humboldt On the Klamath River 2 mi. below the Salmon River Comment
  UC76600  Ageratina occidentalis Mrs. M. H. Manning Jun 1 1900-Jul 1 1900 Humboldt near Hupa; Bold Hill Comment
  UC164893  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1909-7-31 3027 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC166791  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1901-8-2 1245 Humboldt near Hydesville; Northern Coast Region 60 Comment
  SD41382  Agoseris heterophylla Edith A. Purer 1932-7-30 4681 a Humboldt South of Orick Comment
  UC119489  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1934-7-17 13417 Humboldt on open grasshills Grouse Mountain 1524 Comment
  UC1541538  Agrostis Harold E. Parks May 1933 4301 a Humboldt Spruce Cove Trinidad Comment
  HSC102149  Agrostis exarata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1056 Humboldt Patterson Meadows 1566 Comment
  HSC39906  Agrostis exarata J. P. Smith, Steve Selva 1970-6-30 4129 Humboldt Comment
  HSC8788  Agrostis exarata D. E. Anderson 1963-10-6 2882 Humboldt Mad River bars, across from Essex Junction. Comment
  POM126122  Agrostis exarata Joseph P. Tracy 1924-7-13 6731 Humboldt Big Lagoon 6 Comment
  RSA12429  Agrostis exarata C. B. Wolf 1994-7-2 5865 Humboldt edge of small lake at Snow Camp. Mts. east of Korbel Comment
  UC1145059  Agrostis exarata Joseph P. Tracy 1936-8-7 15084 Humboldt head of, near Grizzly Camp Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC1145070  Agrostis exarata Joseph P. Tracy 1938-7-6 16021 Humboldt in bog Big Lagoon 6 Comment
  UC181242  Agrostis exarata Joseph P. Tracy 1913-7-13 4359 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  UC552714  Agrostis exarata Joseph P. Tracy 1935-7-21 14113 Humboldt at Willow Creek (in open field); Trinity River Valley 152 Comment
  RSA129593  Agrostis hallii H. S. Yates 1936-6-18 5737 Humboldt 1 mile NE of Orick 46 Comment
Read comments
Nov 24 2011
  RSA293101  Agrostis hallii J. P. Smith 1977-7-3 9257 Humboldt Six Rivers National Forest. Along Forest Service Road 13N01, 3 miles from its junction with Hwy. 36 549 Comment
Read comments
Nov 3 2011
  UCD52561  Agrostis hallii P. B. Kennedy 1923-8-2 s.n. Humboldt Bluff Creek to Arcata. Comment
  CAS-BOT-BC139060  Agrostis pallens Doris K. Kildale 1925-8-17 1261 Humboldt Trinity Summit. 1917 Comment
  HSC58760  Agrostis pallens Overton, Butler 1979-7-26 10056 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  UCD53145  Agrostis pallens R. Tofsrud 1948-1 s.n. Humboldt Clear Lake, road from Horse Mt. to Grouse Mt. 1371 Comment
  CAS-BOT-BC138636  Agrostis stolonifera Carl B. Wolf 1927-8-28 1189 Humboldt Eureka Bay, on the road to Arcata. Comment
  RSA10066  Agrostis stolonifera Joseph P. Tracy 1932-8-21 10363 Humboldt Three Cabins, on lower western foothills of Chaparral Mountain; North Coast Range 457 Comment
  UCD53476  Agrostis stolonifera var. maritima P. B. Kennedy 1925-8-29 s.n. Humboldt Eureka. Comment
  HSC34257  Aira caryophyllea A. Montalvo 1975-5-24 281 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC97500  Aira caryophyllea Cara Witte 2007-5-29 123 Humboldt Along National Forest 1. Approximately 4 miles south of intersection National Forest 1 and 5N04. 1441 Comment
  RSA183535  Aira caryophyllea G. Bos 1965-5-15 256 Humboldt 8 miles west of Berry Summit along U.S. 299. 762 Comment
  SEINET185294  Aira caryophyllea Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-8 15072 Humboldt Coolidge Tree Redwood Park Comment
  UC1103301  Aira caryophyllea Joseph P. Tracy 1914-5-14 4439 Humboldt Fort Seward Northern Coast Ranges Comment
  UC1541566  Aira caryophyllea Harold E. Parks May 1933 4304 Humboldt Spruce Cove Trinidad Comment
  UC922022  Aira caryophyllea Joseph P. Tracy 1941-6-15 16907 Humboldt e King's Peak; Wilder Ridge 762 Comment
  CAS-BOT-BC138334  Aira caryophyllea var. caryophyllea David D. Keck 1948-7-1 5972 Humboldt South side of Big Lagoon. Comment
  HSC32884  Allium bolanderi var. bolanderi Thomas W. Nelson, James Nelson 1973-5-28 936 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC39431  Allium campanulatum Thomas W. Nelson, Jane P. Nelson 1976-6-22 2875 Humboldt E of Goat Hill lookout 1666 Comment
  UC30070  Allium falcifolium Joseph Burtt Davy 1899-6-19 5659 Humboldt summit of ridge, Hoopa Mt. Hoopa Mt. Comment
  SEINET10532720  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson 1980-6-10 Nelson 5417 Humboldt Blocksburg quad. T1s, r5e, intersection of secs. 13 & 14. Along road to red mt. .5 Miles w of junction with swayback ridge rd. Serpentine bald 1372 Comment
  CDA18808  Allium triquetrum P. Haggard 2000-2-22 PDR 018177 Humboldt Glen St., Eureka. 0 Comment
  UC1196540  Allium triquetrum H. E. Peacock 1942-4-6 Humboldt Ferndale 15 Comment
  UC666924  Allium unifolium Joseph P. Tracy 1928-5-20 8437 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  CAS-BOT-BC476630  Allium unifolium Katherine Esau 1934-5-7 s.n. Humboldt Above Fort Seward 609 Comment
  HSC48726  Allotropa virgata M. A. Baker 1979-6-6 774 Humboldt Middle of W half of section 2. 610 Comment
  HSC63153  Allotropa virgata M. A. Baker 1979-6-30 973 Humboldt 800 Comment
  UC1222284  Alnus incana subsp. tenuifolia Joseph P. Tracy 1950-8-8 19286 Humboldt Croghan Hole Trinity Summit 1676 Comment
  CAS-BOT-BC170947  Alnus rhombifolia Joseph P. Tracy 1930-11-2 9243 Humboldt Camp Grant, along Eel River 60 Comment
  UC1197957  Alnus rhombifolia Joseph P. Tracy 1931-9-26 9699 Humboldt Berry's Northern Coast Ranges, Redwood Creek 274 Comment
  CAS-BOT-BC169549  Alnus rubra H. E. Parks; S. T. Parks 1938-4-1 24126 Humboldt Spruce Cove, Trinidad 60 Comment
  SBBG25879  Alnus rubra E. R. Blakley 1966-8-17 6797 Humboldt Patrick's Point 5 mi N of Trinidad 60 Comment
  UC187254  Alopecurus aequalis Joseph P. Tracy 1911-7-7 3400 Humboldt 3 mi. n.w. of junction of Willow Creek with Trinity R. (at meadows on mt. side, near Beebe's Ranch); Northern Coast Ranges 914 Comment
  CAS-BOT-BC138146  Alopecurus aequalis var. aequalis Volney Rattan 1903-1-1 s.n. Humboldt Mad River. Comment
  RSA167287  Alopecurus geniculatus Joseph P. Tracy 1951-6-21 19524 Humboldt back of Everett Beck House (formerly George Fray) bed of former Goose Lake, Hydesville. Comment
  UC573793  Alopecurus pratensis H. L. Person 1932-5-11 Humboldt Redwood Hwy. between Arcata and Eureka; Eureka Quad. 0 Comment
  SEINET202019  Alopecurus saccatus J. P. Tracy 1942-6-2 17096 Humboldt Alton 30 Comment
  CAS-BOT-BC13703  Ambrosia chamissonis Ira L. Wiggins 1930-7-7 4674 Humboldt Near Samoa Comment
  RSA26851  Ambrosia chamissonis I. L. Wiggins 1940-7-10 9486 Humboldt Big Lagoon. Comment
  UC582626  Ambrosia chamissonis Joseph P. Tracy 1937-9-26 15687 Humboldt sand dunes, near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  HSC35866  Ambrosia chamissonis Thomas W. Nelson, James Nelson 1975-8-5 2128 Humboldt Along S spit of Humboldt Bay adjacent to jetty Comment
  HSC74335  Amelanchier alnifolia Gail Newton 1980-6-16 152 Humboldt Near Monks Camp 1097 Comment
  UC14217  Amelanchier utahensis Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  UC154234  Amelanchier utahensis J. P. Tracy 1909-5-2 2953 Humboldt immediate vicinity Eureka 0 Comment
  CDA1717  Ammophila arenaria T. C. Fuller 1961-9-28 7062 Humboldt 0.2 miles south of Samoa. 0 Comment
  SEINET7296676 Image available Ammophila arenaria Richard W. Pohl 1987-1 15639 Humboldt Eureka; Beach and salt marsh 2 Comment
  HSC17828  Anagallis arvensis Paul Shields 1955-6-16 Humboldt HSC Campus Comment
  HSC37358  Anaphalis margaritacea Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 489 Humboldt Along Lost Man Creek. 38 Comment
  HSC90221  Anaphalis margaritacea L. Watson, J. Watson Aug 1990 2 Humboldt Near Manilla; Mad River Slough and Dunes, 50 yds. N of parking lot, E. of trail Comment
  HSC81710  Anaphalis margaritacea Thomas W. Nelson, Jane P. Nelson 1980-8-12 6237 Humboldt Logging roads S of Lundbar Hills 61 Comment
  HSC56303  Anemone deltoidea Overton, Butler 1979-8-2 12610 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1196197  Anemone deltoidea Joseph P. Tracy 1935-7-28 14309 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  CAS-BOT-BC391787  Anemone deltoidea Joseph P. Tracy 1932-7-13 10489 Humboldt Klamath Mountains, Trinity Summit. Woods near Corral Prairie 1524 Comment
  UC634952  Anemone deltoidea H. L. Mason 1929-5-9 5280 Humboldt Bull Creek Flat Comment
  HSC99355  Anemone oregana K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-21 4 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC64348  Anemone oregana var. oregana J. P. Smith, J. O. Sawyer 1973-5-12 6694 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  JEPS14171  Angelica genuflexa Joseph P. Tracy 1937-8-22 15670 Humboldt 2 mi s of Fields Landing 6 Comment
  CAS-BOT-BC221417  Angelica hendersonii L. R. Abrams 1927-9-1 12065 Humboldt Stone Lagoon Comment
  UCD127225  Angelica hendersonii Joseph DiTomaso 1980-6-29 1636 Humboldt south side of Elkshead. 2 miles north of Trinidad. Comment
  JEPS14245  Angelica lucida Joseph P. Tracy 1938-7-15 16078 Humboldt Mouth of Eel River Eel River 6 Comment
  UC153950  Angelica lucida Joseph P. Tracy 1910-6-5 3153 Humboldt Region about Humboldt Bay (near Samoa, Northern Coast Region); Northern Coast Region 0 Comment
  UC179914  Angelica lucida Joseph P. Tracy 1914-7-12 4581 Humboldt near Hookton (at s end of Humboldt Bay); Northern Coast Region, Humboldt Bay 0 Comment
  HSC70410  Anisocarpus madioides M. A. Baker 1980-6-7 1831 Humboldt Near Ammon Creek 732 Comment
  UC34190  Anisocarpus madioides Harley P. Chandler June, 1901 1313 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  CAS-BOT-BC77290  Antennaria microphylla Joseph P. Tracy 1935-7-24 14169 Humboldt Trinity Summit, near ranger station 1828 Comment
  HSC67474  Anthemis cotula J. P. Smith, Steve Selva 1970-6-14 3818 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC10098  Anthoxanthum occidentale D. E. Anderson 1962-5-10 2205 Humboldt Lanphere Ranch Comment
  RSA183515  Anthoxanthum odoratum G. Bos 1965-5-2 234 Humboldt Korbel-Bald Mtn. road, 5 miles east of Korbel. 732 Comment
  UC187269  Anthoxanthum odoratum Joseph P. Tracy 1906-4-29 2424 Humboldt Northern Coast Region, at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  UC573791  Anthoxanthum odoratum H. S. Yates 1936-6-16 5684 Humboldt near Bayside 9 Comment
  CDA41213  Antirrhinum vexillo-calyculatum subsp. breweri E. C. Whitney 1960-9-1 s.n. Humboldt State Highway 96 near Bluff Creek. 0 Comment
  JEPS83424  Antirrhinum vexillocalyculatum subsp. breweri David M. Thompson 1983-6-30 360 Humboldt vicinity Orleans (40 ft n of the s junction of Cedar Camp Road and Hwy 96, slide on w side of Hwy 96); , Orleans Quad. (15', 1952) 182 Comment
  UC582471  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1935-10-13 14756 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC1198739  Aphanes occidentalis J. P. Tracy 1905-4-16 2165 Humboldt Immediate vicinity of Eureka (at Bucksport); , Bucksport Comment
  UCSB25082  Apocynum cannabinum Keefe, Joseph 1967-7-8 Humboldt Bank of Ell River, Miranda turnoff, 12.4 miles north of Garberville on U.S. Highway 101 170 Comment
  CAS-BOT-BC392162  Aquilegia formosa M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale, 8 mi. N. of Garberville Comment
  HSC102557  Aquilegia formosa M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1545 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC102623  Aquilegia formosa M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1610 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC18044  Aquilegia formosa D. E. Anderson 1965-5-1 3568 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC57019  Aquilegia formosa var. truncata Overton, Butler 1979-7-24 9631 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC1225763  Arabis glabra Joseph P. Tracy 1946-7-7 17610 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC58191  Arabis holboellii var. retrofracta G. L. Clifton, Terry Griswold 1979-8-2 12287 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC75495  Arabis holboellii var. retrofracta J. O. Sawyer 1980-7-18 3637 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  RSA249429  Arabis sparsiflora var. subvillosa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5595 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  HSC57106  Aralia californica Overton, Butler 1979-7-25 9842 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  RSA46725  Aralia californica Doris K. Kildale 1937-9-20 15375 Humboldt Hoopa Comment
  HSC40306  Arbutus menziesii Linda M. Barker 1976-4-30 1405 Humboldt 3 mi. W of Arcata 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
  UC154180  Arbutus menziesii P. E. Goddard 1901-7-12 65 Humboldt Hupa Valley Comment
  RSA20914  Arctostaphylos canescens var. candidissima C. B. Wolf 1937-8-13 9229 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  CAS-BOT-BC23774  Arctostaphylos columbiana Joseph P. Tracy 1945-5-15 17510 Humboldt Kneeland Prairie 670 Comment
  CAS-BOT-BC23824  Arctostaphylos columbiana Doris K. Kildale 1927-6-25 3583 Humboldt Near Ettersburg Comment
  JEPS38616  Arctostaphylos columbiana Lincoln Constance 1934-5-24 638 Humboldt bordering on e side lower Look Prairie; South Fork Eel River, Bull Creek Region 121 Comment
  UC1198660  Arctostaphylos columbiana Joseph P. Tracy 1937-7-17 15440 Humboldt Eureka 45 Comment
  UC1225896  Arctostaphylos columbiana Joseph P. Tracy 1945-5-15 17510 Humboldt Kneeland Prairie 670 Comment
  UC314644  Arctostaphylos columbiana Joseph P. Tracy 1924-3-9 6606 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC484049  Arctostaphylos columbiana Carl B. Wolf 1930-10-29 1784 Humboldt Old Coast Rd 7 mi s Honeydew P.O. 304 Comment
  UC549498  Arctostaphylos columbiana J. E. Adams 1935-5-12 1048 Humboldt Patrick's Point Comment
  UCD50687  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1171 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road from Orick; French Camp Ridge. Comment
  UCD50772  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1170 Humboldt 21.4 miles east of U.S. Highway 101 on Bald Hills Road from Orick, French Camp Ridge. Comment
  SEINET11998372  Arctostaphylos columbiana W. Knight, Knight, I. 1989-1 6476 Humboldt Patrick's Point State Park 24 Comment
  RSA24083  Arctostaphylos columbiana var. columbiana C. B. Wolf 1941-3-3 4072 Humboldt 4 mi. N. of Ettersburg on Rd. to Honeydew. 305 Comment
  RSA47098  Arctostaphylos columbiana var. columbiana Doris K. Kildale 1926-2-7 1504 Humboldt Arcata Road near Bayside. Comment
  UC585935  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1934-7-9 13332 Humboldt ridge 5 mi s Harris (on the road towards Bell Springs); North Coast Regions 762 Comment
  CAS-BOT-BC39162  Arctostaphylos hispidula Carl B. Wolf 1937-8-13 9226 Humboldt North Coast Range, 8 Mi. E. of Hoopa Valley on new road towards Trinity Summit. 1219 Comment
  JEPS38946  Arctostaphylos hookeri subsp. montana Joseph P. Tracy 1935-6-23 13992 Humboldt French Camp Ridge 1066 Comment
  RSA632795  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27774 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  CAS-BOT-BC24363  Arctostaphylos manzanita subsp. manzanita R. N. Raynor 1935-3-1 s.n. Humboldt Fort Seward. Comment
  RSA152312  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1942-9-6 17306 Humboldt Dinsmore's along Van Duzen River, opposite Buck Mountains. 762 Comment
  OBI35863  Arctostaphylos nevadensis David J. Keil 1983-7-2 17331 Humboldt Horse Mtn summit SW of Willow Crk. Comment
  RSA46717  Arctostaphylos nevadensis Doris K. Kildale 1967-8-15 15335 Humboldt High Divide. Comment
  UC1196871  Arctostaphylos nevadensis Joseph P. Tracy 1911-7-7 3425 Humboldt viz. ridge n Willow Creek (between Willow and Campbell Creeks, near the summit); Northern Coast Ranges, Brannan Mountain 1219 Comment
  UCD52853  Arctostaphylos nevadensis subsp. knightii Roman Gankin; W. R. Hildreth 1967-10-26 1174 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road from Orick; French Camp Ridge. Comment
  UCD52855  Arctostaphylos nevadensis subsp. knightii Roman Gankin; W. R. Hildreth 1967-10-26 1176 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road from Orick; French Camp Ridge. Comment
  HSC55118  Arctostaphylos patula Gilbert Muth 1979-8-1 11896 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  UC1198668  Arctostaphylos patula Joseph P. Tracy 1942-6-23 17263 Humboldt open ridges near Water-dog Lakes; Trinity Summit 1828 Comment
  CAS-BOT-BC43988  Arctostaphylos uva-ursi Carl B. Wolf 1930-10-28 1779 Humboldt Samoa, Humboldt Bay 15 Comment
  CAS-BOT-BC43989  Arctostaphylos uva-ursi C. B. Wolf 1931-8-30 2374 Humboldt Samoa, Humboldt Bay. 7 Comment
  CAS-BOT-BC47214  Arctostaphylos uva-ursi D. E. Breedlove 1962-6-7 3034 Humboldt 1.5 mi. s. of Samoa on peninsula on western side of Humboldt Bay. Comment
  HSC71372  Arctostaphylos uva-ursi J. P. Smith 1971-10-6 4971 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC7728  Arctostaphylos uva-ursi Unknown 1960-4-30 Humboldt Samoa peninsula 6 mi. W of Arcata Comment
  RSA12763  Arctostaphylos uva-ursi C. B. Wolf 1930-10-28 6114 Humboldt Samoa. 15 Comment
  UC154201  Arctostaphylos uva-ursi Harley P. Chandler May, 1901 1193 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  SEINET11989104  Arctostaphylos uva-ursi R. Gankin, Hildreth, W. R. 1967-1 1149 Humboldt 1.7 mi S of Samoa, on Humboldt Peninsula Comment
  SEINET11987137  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 3993 Humboldt Tilden Botanic Garden, Berkeley, orig. from Table Bluffs near Eureka Comment
  HSC94121  Arctotheca calendula Gordon Leppig 2000-4-9 1288 Humboldt Union St. at 7th St. South of Phillips House 24 Comment
  CAS-BOT-BC467182  Arenaria serpyllifolia var. serpyllifolia Henry M. Pollard 1946-8-13 s.n. Humboldt Klamath River, near Orleans Comment
  OBI75994  Aristida oligantha Joseph P. Tracy 1938-8-14 16110 Humboldt Trinity River Valley, at Willow Crk 152 Comment
  HSC1975  Armeria maritima subsp. californica N. D. Dennis, D. E. Anderson 1965-6-8 108 Humboldt Samoa Peninsula along the W side of Humboldt Bay. Comment
  CHSC23908  Armeria maritima var. californica N. Dennis; D. E. Anderson 1965-6-8 108 Humboldt Samoa Peninsula along the west side of Humboldt Bay. Sand dunes and flats along the ocean. Comment
  CAS-BOT-BC82102  Arnica cernua Joseph P. Tracy 1938-6-13 15902 Humboldt Horse Mountain 1432 Comment
  RSA256573  Arnica cernua D. E. Anderson 1972-6-20 5739 Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  UC302176  Arnica cernua Joseph P. Tracy 1926-5-2 7449 Humboldt near Ruby Creek; Northern Coast Ranges, Willow Creek Canyon 609 Comment
Read comments
Feb 27 2007
  OBI35861  Arnica cordifolia David J. Keil 1983-7-2 17333 Humboldt Horse Mtn Summit SW of Willow Crk Comment
  SEINET11837502  Arnica cordifolia H. P. Chandler 1901-1 1400 Humboldt Klamath River 244 Comment
  JEPS20972  Arnica discoidea Harley P. Chandler 1901-6-1 1400 Humboldt Klamath River North Coast Ranges, Klamath River 243 Comment
  JEPS20984  Arnica discoidea Joseph P. Tracy 1937-7-2 15398 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  CAS-BOT-BC82426  Arnica discoidea Joseph P. Tracy 1923-6-20 6335 Humboldt Briceland 304 Comment
  CAS-BOT-BC82648  Arnica latifolia Doris K. Kildale 1926-4-25 1808 Humboldt Sugar Bowl Mountain on old road [frm.] from Willow Creek to Hoopa Comment
  RSA167206  Arnica latifolia Joseph P. Tracy 1942-6-23 17236 Humboldt Near Box Camp 1463 Comment
  HSC8988  Arrhenatherum elatius J. A. Waller 1965-5-2 29 Humboldt Along Hwy. 96 near Willow Creek Comment
  UC169318  Artemisia douglasiana Joseph P. Tracy 1912-8-3 3976 Humboldt opposite Buck Mountain; Valley of Van Dusen River 762 Comment
  UC449644  Artemisia dracunculus Joseph P. Tracy 1912-10-20 4002 Humboldt on sandy bars of Van Duzen River (Alton) 30 Comment
  HSC98125  Asarum caudatum Cara Witte 2007-6-28 379 Humboldt FS Road 5N10. Approximately 0.5 mi E of intersection with National Forest 1. 1426 Comment
  HSC98661  Asarum caudatum Cara Witte 2008-8-5 982 Humboldt Clear Lake. At end of Forest Service Road 6N01B. 1533 Comment
  RSA296721  Asarum caudatum Clark L. Miller 1979-5-13 1 -129 Humboldt East of Hwy 101 from Seawood Drive. Comment
  SFV18521  Asarum caudatum M. Oliver 2002-3-17 18 Humboldt Arcata Community Forest. 155 Comment
  HSC100704  Asarum hartwegii Carl C. Marshall Apr 1887 389 Humboldt Hoopa Valley, rear of Captain's quarters. Comment
  CDA30679  Aster chilensis M. K. Beyers, I. Shepardson 2009-9-13 252 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  RSA417645  Aster chilensis M. B. Dunkle 1936-8-18 4811 Humboldt Fortuna Comment
  CAS-BOT-BC186562  Astragalus nuttallii var. virgatus F. H. Utech 1986-5-23 86 -385 Humboldt King Mountain Range: 0.5 mi NNW on Kings Peak Road (Humboldt Co. hwy C4A) from junction with Shelter Cove Road 600 Comment
  CAS-BOT-BC192860  Astragalus purshii var. lectulus Thomas W. Nelson; James L. Nelson 1980-6-10 5405 Humboldt Along Swayback Ridge 4-wheel drive road ca 2.5 miles north of junction with Forest Service road 1S07 1463 Comment
  UC1197706  Astragalus umbraticus Joseph P. Tracy 1914-7 4575 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mt., betw High Prairie-Snow Camp 1219 Comment
  HSC41268  Asyneuma prenanthoides Brad Klipfel 1974-7-23 462 Humboldt Horse Mtn. Comment
  HSC57044  Asyneuma prenanthoides Overton, Butler 1979-7-24 9693 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC76274  Asyneuma prenanthoides Denis Kearns 1981-7-23 370 Humboldt Near Whiteys Peak 732 Comment
  UCD66899  Asyneuma prenanthoides H. P. Olmo 1928-7-10 Humboldt Wooley Creek. Comment
  CAS-BOT-BC69453  Athyrium filix-femina subsp. cyclosorum Carl B. Wolf 1939-7-6 9516 Humboldt Along Larabee Creek, 6 7/10 mi. below Blocksburg on road to Bridgeville. 304 Comment
  HSC55210  Athyrium filix-femina var. cyclosorum Walter Overton 1979-8-1 12341 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  SDSU1603  Athyrium filix-femina var. cyclosorum D. R. Harvey 1938-8-13 2252 Humboldt Redwood Park. Comment
  UC902198  Athyrium filix-femina var. cyclosorum Joseph P. Tracy 1949-8-26 18512 Humboldt ne of Hawkins Bar Happy Camp Mt; Trinity Summit Range 1280 Comment
  UCR37541  Athysanus pusillus L. P. Janeway 1983-5-21 300 Humboldt Above Titlow Hill Road. 3.3 mi south of Hwy 299 1250 Comment
  CAS-BOT-BC146202  Avena barbata Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek near Orleans. 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
  UCD56094  Avena strigosa Ma. Jaegar 1926-6-8 415 3d Humboldt Happy Valley. Comment
  RSA246915  Azolla filiculoides Robert F. Thorne, Percy C. Everett 1965-8-9 35325 Humboldt Clam Beach County Park: along highway. 3 Comment
  JEPS21315  Baccharis glutinosa W. L. Jepson 1932-7-24 16391 Humboldt Garberville, Tooey Ranch Garberville Comment
  CAS-BOT-BC98034  Baccharis pilularis L. B. Kildale 1930-8-3 10488 Humboldt Chaparral Mt. at Bug Creek Comment
  CAS-BOT-BC99407  Baccharis pilularis Carl B. Wolf 1927-8-22 805 Humboldt 1 mile south of Orick Comment
  RSA134603  Baccharis pilularis Percy C. Everett, E. K. Balls 1959-10-25 23968 Humboldt 1.5 miles from Ferndale on Old Coast Road to Capetown Comment
  UC1004331  Baccharis pilularis W. L. Colwell 1954-11-20 20 Humboldt 3 mi e of, along Eel River South Fork Quadrangle 29B4; Eel River 91 Comment
  UC204752  Baccharis pilularis Joseph P. Tracy 1918-9-29 5107 Humboldt 4 mi above mouth of South Fork of Eel River; Northern Coast Ranges, South Fork of Eel River 60 Comment
  HSC5117  Baccharis pilularis subsp. consanguinea J. W. Johnson 1961-11-20 1409 Humboldt Arcata; Hollow 10, Lanphere Farm, Samoa Peninsula Comment
  HSC78978  Baccharis pilularis subsp. consanguinea L. P. Janeway 1984-12-5 1192 Humboldt On the N Spit of Humboldt Bay; on the W side Samoa Rd. near the boat ramp 5 Comment
  UC175209  Balsamorhiza deltoidea Joseph P. Tracy 1913-6-17 4175 Humboldt near the summit Buck Mountain; Northern Coast Ranges 1524 Comment
  UC1198289  Barbarea orthoceras Joseph P. Tracy 1932-7-16 10642 Humboldt along creek in McKay Prairie 1524 Comment
  JEPS84961  Bellis perennis Barbara Ertter with Thomas J. Delendick 1987-5-16 6917 Humboldt Hwy 299 roadside ca 8 mi e Arcata (9 1/2 mi w of Lord Ellis summit) 152 Comment
  HSC5189  Bellis perennis John A. Dubois 1962-5-23 20 Humboldt 20 miles East of Arcata Comment
  HSC5192  Bellis perennis D. E. Anderson 1961-8-11 1729 Humboldt East of Humboldt State College campus 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
  HSC41476  Berberis aquifolium Richard Runyon 1977-4-23 10 Humboldt 2.5 mi. S of Shelter Cove Road, S fork of Bear Creek at Wailaki Campground 561 Comment
  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
  CAS-BOT-BC75676  Berberis nervosa L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek Road. Comment
  CAS-BOT-BC75801  Berberis pinnata Doris K. Kildale 1928-4-29 5971 Humboldt Horse Mountain. Comment
  CAS-BOT-BC75898  Berberis piperiana H. E. McMinn 1922-8-5 342 Humboldt Van Duzen River. Comment
  BLMAR413  Bidens cernua Clara Sander 2007-8-22 413 Humboldt South Spit, east side of road near "lone tree" 9 Comment
  CAS-BOT-BC66272  Blechnum spicant W. C. Blasdale 1896-6-1 s.n. Humboldt Eureka Comment
  POM87950  Blechnum spicant L. R. Abrams, R. Bacigalupi 8299 Humboldt Near northern county line Comment
  UC162612  Boechera retrofracta Harley P. Chandler Jun 1901 1511 Humboldt Klamath River North Coast Ranges 426 Comment
  POM247177  Boisduvalia glabella Joseph P. Tracy 1934-7-9 13349 Humboldt Dobbyn Creek 152 Comment
  BLMAR411  Bolboschoenus maritimus Jennifer Wheeler 2007-8-22 411 Humboldt South Spit Comment
  CAS-BOT-BC31367  Bolboschoenus maritimus Carl B. Wolf 1927-8-28 1180 Humboldt Salt Marsh bordering Eureka Bay, on road to Arcata. Comment
  HSC74466  Boschniakia strobilacea M. A. Baker 1980-5-17 1200 Humboldt Near Le Perron Peak 792 Comment
  POM89211  Boykinia occidentalis L. R. Abrams 1922-6-25 8285 Humboldt Big Lagoon, south of Orick. Comment
  CAS-BOT-BC420252  Boykinia occidentalis Kenneth Clark 1980-6-14 690 Humboldt Point Delgada quad. north fork Dead Man's Gulch 121 Comment
  UC160971  Brassica rapa Joseph P. Tracy 1911-6-25 3242 Humboldt Northern Coast Region, at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC106286  Brickellia californica L. R. Abrams 1927-8-27 12049 Humboldt Rocky river bottom, Eel River, Richardson Grove 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
  SEINET5781061 Image available Brickellia californica S. K. Harris, C. M. Wilder 1938-9-8 Humboldt Van Duzen River, below Blue Slide Comment
  UC894169  Brickellia californica Carl D. Duncan 1920-9-22 Humboldt Hoopa Valley Comment
  CHSC31284  Briza maxima Mark Stopher 1980-5-16 68 Humboldt Along Hwy 101 near jct with Elk River, s of Eureka. Comment
  HSC103008  Briza maxima J. P. Smith 2014-5-20 13850 Humboldt Samoa Peninsula 6 Comment
  CAS-BOT-BC145570  Briza minor Doris K. Kildale 1925-6-28 916 Humboldt Fleener Creek. Comment
  UC1844146  Briza minor Joseph P. Tracy 1912-6-9 3664 Humboldt Alton (Northern Coast Region) Comment
  HSC74668  Brodiaea elegans subsp. elegans Gail Newton 1981-8-7 2433 Humboldt Near Bug Creek 1042 Comment
  HSC81655  Brodiaea elegans subsp. elegans Thomas W. Nelson, Jane P. Nelson 1980-7-13 6058 Humboldt Along the rd. from Dinsmore to Anderson Ford-McKeown Ranch rd. 762 Comment
  HSC98640  Brodiaea elegans subsp. elegans Cara Witte 2008-7-10 844 Humboldt National Forest 1. 5 miles south of intersection with Forest Service Road 5N04. Before a cattle guard. 1350 Comment
  JEPS7652  Brodiaea elegans subsp. elegans Milo S. Baker 1923-7-28 131 a Humboldt near camp on South Fork Yager Creek Comment
  UC303037  Brodiaea elegans subsp. elegans Joseph P. Tracy 1926-6-27 7695 Humboldt Horse Mt. Pass on Trinity Highway North Coast Ranges, Horse Mountain (grassy slopes) 883 Comment
  JEPS5499  Brodiaea stellaris W. I. Follett 1934-5-20 Humboldt 9.6 mi e Bridgeville (beside Fortuna-Red Bluff Hwy (Bridgeville is 23.5 mi w of the Humboldt-Trinity Co. line)) Comment
  BLMAR191  Brodiaea terrestris subsp. terrestris Donald Hazlett 1994-6-7 191 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC666940  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1936-5-30 14837 Humboldt near Samoa; Humboldt Bay 6 Comment
  HSC91591  Brodiaea terrestris subsp. terrestris E. Mackey 1986-6-18 Humboldt Patrick's Point State Park on Ceremonial Rock Comment
  UC1103280  Bromus carinatus var. carinatus Joseph P. Tracy 1920-5-18 5326 Humboldt 5 mi above mouth of South Fork (along Eel River from South Fork to Scotia); Northern Coast Ranges, Eel River 60 Comment
  CAS-BOT-BC155847  Bromus catharticus var. elatus W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula. Comment
  HSC26616  Bromus commutatus J. P. Smith, Steve Selva 1970-6-14 3826 Humboldt Along Hwy. 96 at Whitmore Creek. 152 Comment
  HSC9253  Bromus hordeaceus R. J. Vernimen 1963-4-27 42 Humboldt 0.5 mi. off Samoa Rd., behind the Georgia-Pacific dump, 7.5 mi. SW of Arcata, along logging road Comment
  UC1103363  Bromus hordeaceus Joseph P. Tracy 1933-6-11 12556 Humboldt 4 mi s of Dyerville (South Fork Eel River); North Coast Ranges, South Fork Eel River 60 Comment
  UC37636  Bromus laevipes Harley P. Chandler June, 1901 1512 A Humboldt North Coast Ranges, Klamath River Klamath River; North Coast Ranges, Klamath River 426 Comment
  RSA152297  Bromus marginatus Joseph P. Tracy 1950-6-15 18786 Humboldt Mail Ridge. North of Harris 7 miles. 1037 Comment
  UC552776  Bromus orcuttianus H. E. Parks and Joseph P. Tracy 1934-6-27 11079 Humboldt Grouse Mountain 1432 Comment
  CAS-BOT-BC185516  Bromus vulgaris Harley P. Chandler 1901-5-1 1177 Humboldt North Coast Ranges. Humboldt Bay. 30 Comment
  UC1103267  Bromus vulgaris J. P. Tracy 1901-6-2 1116 Humboldt immediate vicinity of Eureka 0 Comment
  UC161575  Cakile edentula J. P. Tracy 1901-8-7 1266 Humboldt Ocean Beach at Samoa, opposite Eureka Ocean Beach; Samoa, Ocean Beach Comment
  UCD114857  Cakile edentula M. Barbour 1969-9-4 s.n. Humboldt West of Table Bluff (about 10 miles south of Eureka). Comment
  HSC103973  Cakile maritima C. Reynolds 2015-3-16 18 Humboldt Along Freshwater Beach, due south of the Kuchel Visitor Center 1 Comment
  RSA246935  Cakile maritima var. maritima R. F. Thorne, P. Everett 1965-8-9 35333 Humboldt Clam Beach County Park. 3 Comment
  UC1565648  Calamagrostis foliosa Ken S. Berg 1986-9-13 Humboldt Shelter Cover Telegraph Creek (mouth of creek) Comment
Read comments
Mar 31 2007
  HSC76546  Calamagrostis koelerioides Teresa Prendusi 1981-7-21 282 Humboldt Near Whiteys Peak 1646 Comment
  SBBG83771  Calamagrostis koelerioides J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka; Loleta Comment
  SEINET200617 Image available Calamagrostis rubescens Joseph P. Tracy 1938-7-17 16082 Humboldt Local. Garberville. Comment
  UC1738929  Calamagrostis stricta subsp. inexpansa Dean W. Taylor 1991-8-15 12276 Humboldt Snow Camp Lake 1310 Comment
  HSC12858  Callitropsis nootkatensis M. Athey, D. La Conte 1970-11-28 4 Humboldt HSU campus Comment
  HSC58144  Calocedrus decurrens Gilbert Muth 1979-8-1 12179 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1781 Comment
  OBI33734  Calocedrus decurrens David J. Keil 1983-7-2 17316 Humboldt Ca. 4 mi SE of SR 299 along Titlow HIll rd below Horse Mtn Summit Rd Comment
  UC1197698  Calochortus amabilis Mrs. Eri Eaton 1911-5-27 Humboldt near South Fork of Eel River; Phillipsville 304 Comment
  HSC102081  Calochortus coeruleus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 983 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC70761  Calochortus tolmiei M. A. Baker 1980-7-19 2994 Humboldt Near Bret Hole. 1814 Comment
  HSC74278  Calochortus tolmiei M. A. Baker 1980-5-23 1395 Humboldt Near Buck Mtn. 1524 Comment
  CAS-BOT-BC494359  Calochortus tolmiei W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  CAS-BOT-BC496520  Calochortus tolmiei Lincoln Constance; Alan A. Beetle; Joseph P. Tracy 1940-5-17 2614 Humboldt Larrabee Valley, near Eureka 762 Comment
  HSC89585  Calochortus tolmiei M. Roantree 1985-5-30 70 Humboldt W side of Trinidad Head on an outcropping W of trail Comment
  CAS-BOT-BC175758  Caltha leptosepala Carl B. Wolf 1934-7-2 5891 Humboldt Snow Camp (mts. E. of Korbel). Near Small Lake 1371 Comment
  HSC82398  Caltha leptosepala Thomas W. Nelson 1979-7-11 5016 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC1222961  Calycadenia fremontii Joseph P. Tracy 1948-9-20 18220 Humboldt Hoopa Valley 91 Comment
  HSC95802  Calypso bulbosa Kevin Thomas 2004-4-26 15 Humboldt Titlow Hill Rd. Comment
  UC1442908  Calypso bulbosa Theodore F. Niehaus 1970-4-14 913 Humboldt 5 mi w from Yager-Bridgeville Road (on Redwood House Road) Comment
  UCD138885  Calypso bulbosa var. occidentalis J. C. Arthur 1934-3-20 s.n. Humboldt exact location unknown. Comment
  HSC17640  Calyptridium monospermum Doris K. Kildale 1925-8-16 1227 Humboldt Trinity Summit 1829 Comment
  HSC44594  Calyptridium monospermum Brad Klipfel 1973-7-15 190 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC55179  Calyptridium monospermum Gilbert Muth 1979-8-1 12189 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  HSC24381  Calystegia occidentalis subsp. occidentalis J. O. Sawyer 1970-6-24 2244 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC97636  Calystegia occidentalis subsp. occidentalis Cara Witte 2007-6-4 187 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC449948  Calystegia occidentalis subsp. occidentalis Mrs. M. H. Manning 1901-1 Humboldt near Hupa; near Hupa Comment
  UCSB4975  Calystegia soldanella Phillips, Priscilla 1958-6-7 Humboldt Dry Lagoon Park beach, near Trinidad Comment
  HSC100552  Camassia esculenta Carl C. Marshall May 1885 63 Humboldt Hillsides everywhere. Comment
  CAS-BOT-BC493384  Camassia quamash subsp. linearis M. S. Jussel 1931-5-1 s.n. Humboldt On road to Garberville Comment
  SEINET10452961  Camissonia Mary Susan Taylor 1990-8-22 Taylor 6071 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  HSC59672  Camissonia cheiranthifolia George Kirn 1977-10-14 Humboldt 1/2 mi. NW of Samoa Comment
  JEPS11849  Campanula prenanthoides Lincoln Constance 1934-6-11 854 Humboldt Lower Look Prairie, and Bull Creek road to Dyerville South Fork Eel River, Bull Creek Region Comment
  SEINET10873255  Campanula prenanthoides Sutherland 1976-8-13 SUTHERLAND 27 .13.8.76 Humboldt Bank at mouth of Redwood Creek at South Fork Eel River; Garberville quad. T4S R3E Sec. 10 87 Comment
  HSC56388  Campanula scouleri Griswold, Butler 1979-7-11 6946 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  HSC98724  Campanula scouleri Cara Witte 2008-7-16 919 Humboldt Forest Service Road 4N38. At intersection to Board Camp Lookout. 1414 Comment
  SEINET10463588  Campanula scouleri Rattan 1883-6-29 RATTAN s.n. Humboldt HILLS IN FORESTS NEAR REDWOOD CREEK Comment
  UC492265  Capsella bursa-pastoris Joseph P. Tracy 1929-4-28 8544 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC36518  Cardamine californica J. D. Ackerman, A. M. Montalvo 1973-5-6 61 Humboldt 5 mi. from Weott on Bull Creek Flat Rd. 274 Comment
  UC1199188  Cardamine californica Joseph P. Tracy 1918-4-21 4878 Humboldt on road to Kneeland Prairie (around Humboldt Bay); Northern Coast Ranges, around Humboldt Bay 152 Comment
  RSA0034559  Cardamine californica var. integrifolia H. E. Parks, Joseph P. Tracy 1931-3-26 916 Humboldt Lower Van Duzen River. 61 Comment
  HSC64134  Cardamine oligosperma J. P. Smith, J. O. Sawyer 1973-5-12 6692 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC43205  Cardamine oligosperma R. Sutherland 1976-8-13 29 .13876 Humboldt Mouth of Redwood Creek at S Fork of Eel River 87 Comment
  POM148066  Cardionema ramosissimum J. B. Feudge 1923-7-21 129 Humboldt Ferndale. 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
  UC562287  Carex aquatilis var. dives Joseph P. Tracy 1934-7-30 13504 Humboldt along coast in front of South End of Stone Lagoon (Dry Lagoon); Dry Lagoon 6 Comment
  CHSC85062  Carex arcta Gordon Leppig 2002-7-12 1785 Humboldt Pacific Lumber Company Land. L 35 Rd. 1/2 mile west of Fox Creek Road, west side of large swamp. 70 Comment
  UC1103082  Carex athrostachya Joseph P. Tracy 1933-8-30 13019 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  RSA91675  Carex athrostachya Joseph P. Tracy 1935-7-27 14306 Humboldt Trinity Summit, open places at McKay Prairie. 1585 Comment
  POM273208  Carex barbarae Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  CAS-BOT-BC19215  Carex barbarae Joseph Prince Tracy 1929-6-23 8606 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  JEPS63598  Carex barbarae Lincoln Constance 1934-6-7 772 Humboldt Cabin Creek Bridge, on Bull Creek Road Comment
  RSA246879  Carex bolanderi Robert F. Thorne, Percy C. Everett 1965-8-5 35136 a Humboldt Mt. Chamisal: below summit. 747 Comment
  UC249760  Carex bolanderi Joseph P. Tracy 1923-6-20 6332 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley 304 Comment
  HSC36160  Carex bolanderi Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2051 Humboldt FS Rd. 2S08, below Alder Springs Comment
  RSA337439  Carex buxbaumii Robert F. Thorne, Percy C. Everett 1965-8-7 35197 Humboldt Big Lagoon, south end. 2 Comment
  HSC76383  Carex concinnoides L. P. Janeway 1982-6-20 12 Humboldt On ridge 1 mi. SE of Horse Mtn. along FS Rd. 6N36 1384 Comment
  CAS-BOT-BC34437  Carex deflexa var. boottii Joseph Prince Tracy 1935-6-2 13921 Humboldt Big Lagoon. 30 Comment
  UC194805  Carex deweyana subsp. leptopoda Joseph P. Tracy 1913-6-22 4267 Humboldt Dinsmore's Ranch in valley of Van Duzen River, opposite Buck Mountain 0 Comment
  UC562272  Carex echinata Joseph P. Tracy 1933-7-25 12845 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  JEPS25978  Carex echinata subsp. echinata Joseph P. Tracy 1932-7-14 10567 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  SEINET7483969 Image available Carex exsiccata Joseph P. Tracy 1934-1 13502 Humboldt Along coast in front of South End of Stone Lagoon. 3 Comment
  POM126509  Carex feta Joseph P. Tracy 1921-6-12 5828 Humboldt Butler Valley. 152 Comment
  UCD140305  Carex feta K. Esau 1934-5-8 s.n. Humboldt above Fort Seward. 609 Comment
  CHSC85576  Carex fracta L. P. Janeway 2003-7-30 7942 Humboldt High North Coast Ranges. On northeast side of Titlow Hill Road, across form a small pond, on the map but un-named, 1.1 km south of Cold Spring. 1426 Comment
  UCSC000105  Carex globosa H. L. Person 1932-5-11 s.n. Humboldt Near Arcata Arcata - Eureka Comment
  UC249765  Carex hendersonii Joseph P. Tracy 1923-6-20 6331 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  IRVC1227  Carex hendersonii R. H. Whittaker, W. A. Niering U Humboldt Humboldt Redwoods State Park. Comment
  UC562662  Carex integra Joseph P. Tracy 1932-7-15 10589 Humboldt ridges e Corral Prairie; Trinity Summit 1828 Comment
  CAS-BOT-BC7792  Carex laeviculmis Joseph Prince Tracy 1930-7-16 8985 Humboldt South Fork Mountain. At McKay Camp. 1676 Comment
  CAS-BOT-BC31464  Carex leptopoda Joseph Prince Tracy 1913-6-22 4267 Humboldt Dinsmore's Ranch, in valley of Van Duzen River opposite Buck Mountain. 762 Comment
  HSC58794  Carex luzulina Overton, Butler 1979-7-31 11460 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC1103589  Carex luzulina var. ablata Joseph P. Tracy 1936-6-28 15026 Humboldt bog at Lake Prairie Bald Mountain 1066 Comment
  CAS-BOT-BC31584  Carex luzulina var. luzulina Joseph Prince Tracy 1930-7-16 8987 Humboldt South Fork Mountain, in wet meadow at McKay Camp. 1676 Comment
  HSC102157  Carex microptera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1065 Humboldt Patterson Meadows 1555 Comment
  UC1116265  Carex multicaulis Joseph P. Tracy 1942-6-2 17105 Humboldt Valley of South Yager Creek 762 Comment
  CHSC40163  Carex nudata L. P. Janeway 1984-4-5 755 Humboldt Along the west edge of Trinity River near the Willow Creek airstrip. 137 Comment
  HSC39186  Carex nudata D. E. Anderson, J. P. Smith 1971-6-28 1214 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  CHSC34066  Carex obnupta Joseph P. Tracy 1906-5-13 2459 Humboldt Northern Coast Region of California. Ocean beach at Humboldt Bay. Comment
  HSC7187  Carex obnupta D. R. Junell 1965-5-2 40 Humboldt 1 mi. S of Fairhaven on Samoa Peninsula Comment
  HSC7061  Carex obnupta J. W. Johnson 1962-4-28 1306 Humboldt Arcata, Hollow 10, W.M. Lamphere Farm, Samoa Peninsula Comment
  CAS-BOT-BC119267  Carex ovalis Joseph Prince Tracy 1936-5-29 14826 Humboldt Gans Prairie on ridge E or Orick. 548 Comment
  RSA88853  Carex ovalis Alice Eastwood, John Thomas Howell 1937-6-23 4790 Humboldt Near Dinsmore s. Comment
  POM126147  Carex pachystachya Joseph P. Tracy 1923-6-17 6278 Humboldt Big Lagoon 6 Comment
  CAS-BOT-BC119223  Carex pachystachya Joseph Prince Tracy 1928-6-24 8465 Humboldt Valley of South Yager Creek. 762 Comment
  HSC48035  Carex pachystachya D. H. Norris 1972-6-26 22972 Humboldt Along Grouse Mtn. Rd. about 3 mi. from intersection with Horse Mtn. Rd. Comment
  HSC76793  Carex pachystachya L. P. Janeway 1982-6-20 17 Humboldt Along Titlow Hill Rd., 3 mi. from Hwy. 299 1220 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
  UC1103094  Carex pachystachya Joseph P. Tracy 1923-6-24 6352 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC194803  Carex pansa Joseph P. Tracy 1911-6-25 3258 Humboldt Eureka Northern Coast Region 0 Comment
  CAS-BOT-BC118598  Carex praticola Joseph Prince Tracy 1914-5-3 4421 Humboldt At Eureka 60 Comment
  HSC75279  Carex rostrata J. O. Sawyer, D. A. Thornburgh 1980-9-9 4076 Humboldt Mill Creek Lake and surrounding meadows Comment
  CAS-BOT-BC118230  Carex scopulorum var. bracteosa Joseph Prince Tracy 1932-7-17 10675 Humboldt Trinity Summit. Wet meadow heading into Devil's Hole. 1828 Comment
  HSC71729  Carex serratodens M. A. Baker 1980-6-26 2452 Humboldt Near Sims Creek 610 Comment
  JEPS79862  Carex stipata var. stipata Joseph P. Tracy 1931-5-17 9422 Humboldt opposite mouth Willow Creek (Lack Pond); Northern Coast Ranges, Trinity River Valley 152 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-BC116908  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-6-22 4751 Humboldt 8.5 miles from Blocksburg on road to Bridgeville. 335 Comment
  UC194812  Carex tumulicola Joseph P. Tracy 1912-7-26 3835 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  CAS-BOT-BC115574  Carex tumulicola Joseph Prince Tracy 1930-7-10 8859 Humboldt In grassy opening Brannan Mountain 1219 Comment
  CAS-BOT-BC115542  Carex unilateralis Joseph Prince Tracy 1933-6-9 12539 Humboldt Fortuna, Bed of winter pool. 18 Comment
  UC562326  Carex vesicaria var. major Joseph P. Tracy 1927-7-17 8277 Humboldt lower w foothills Chaparral Mountain (Three Cabins); North Coast Ranges 457 Comment
  CDA6965  Carthamus lanatus G. D. Barbe 1978-7-27 2418 Humboldt Along Salmon Creek, west of Miranda on Salmon Creek Road-Thomas Road. 0 Comment
  UCR160739  Castilleja George K. Helmkamp, E. A. Helmkamp 2001-7-8 7015 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  UC1196862  Castilleja affinis subsp. affinis Joseph P. Tracy 1908-6 2812 Humboldt opposite Buck Mountain; North Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC59736  Castilleja affinis subsp. litoralis Clark L. Miller 1979-5-13 6127 Humboldt N of Trinidad along Patricks Point Dr. Comment
  UC902223  Castilleja affinis subsp. litoralis Joseph P. Tracy 1947-5-24 17692 Humboldt Big Lagoon 152 Comment
  UCSB26617  Castilleja ambigua Havlik, Neil 1968-8-21 Humboldt Samoa, west of Eureka Comment
  HSC32442  Castilleja ambigua subsp. humboldtiensis Linda M. Barker 1974-4-14 143 Humboldt South G St., Arcata 0 Comment
  HSC97237  Castilleja ambigua subsp. humboldtiensis Thomas W. Nelson, Jane Nelson 2004-4-20 9182 Humboldt At estuary to Elk River, SE of mouth 2 Comment
  UC604635  Castilleja applegatei subsp. martinii Joseph P. Tracy 1932-5-22 10118 Humboldt between Miranda and Redway (South Fork of Eel River); North Coast Ranges, South Fork of Eel River 91 Comment
  HSC30760  Castilleja applegatei subsp. pinetorum Thomas W. Nelson, James Nelson 1973-5-28 922 Humboldt N of Black Lassic along U.S.F.S. Rd. 1S07 Comment
  HSC63879  Castilleja arachnoidea M. A. Baker 1979-6-27 928 Humboldt E of Oregon Creek Comment
  HSC96265  Castilleja attenuata Jennifer Lumbert, James Robinson 2005-6-10 9 Humboldt Cold Springs Campground, 7.4 mi. S of Hwy. 299 on NF1 1357 Comment
  HSC20841  Castilleja exserta subsp. latifolia Rollin Sparrowe 1962-5-7 20 Humboldt Comment
  HSC32373  Castilleja exserta subsp. latifolia Linda M. Barker 1974-6-2 200 Humboldt Manila Dunes, Samoa Peninsula, W of Emerson Mill 0 Comment
  HSC48386  Castilleja hispida subsp. brevilobata Brad Klipfel 1973-6-10 110 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA518654  Castilleja litoralis L. R. Heckard, T. I. Chuang 1971-7-1 2667 Humboldt Slope at south end of Freshwater Lagoon, 2 miles southwest of Orick. Comment
  HSC44563  Castilleja miniata Brad Klipfel 1973-7-15 183 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC199387  Castilleja pruinosa Harley P. Chandler Jun 1901 1364 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Valley 152 Comment
  UC582475  Castilleja pruinosa Joseph P. Tracy 1926-6-27 7676 Humboldt Horse Mountain; North Coast Ranges 1432 Comment
  JEPS88810  Castilleja pruinosa T. I. and F. M. Chuang 1991-7-9 7875 Humboldt 4.3 mi se Route 299 junction with Titlow Hill road (on way to Horse Mt) Comment
  HSC79430  Castilleja wightii Kenneth Clark 1980-6-14 670 Humboldt Western slope of Dead Man's Gulch 145 Comment
  UC1502130  Ceanothus R. Sutherland 1978-1-27 1 .27.78 Humboldt sse Nooning Creek (near Mattole River); Garberville Quad., , sse Nooning Creek 286 Comment
  HSC55626  Ceanothus cordulatus Overton, Butler 1979-7-24 9605 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  CAS-BOT-BC49315  Ceanothus cuneatus Doris K. Kildale 1926-12-19 2870 Humboldt South Fork. on South Fork of Eel River. 51 Comment
  OBI35865  Ceanothus cuneatus var. cuneatus David J. Keil 1983-7-2 17328 Humboldt Horse Mtn Summit SW of Willow crk Comment
  CAS-BOT-BC63724  Ceanothus integerrimus Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka. Comment
  JEPS103741  Ceanothus integerrimus D. Wilken with E. Painter 2003-7-16 16151 Humboldt St Hwy 96 between Muddy and Weitchpec crks, just E of Weitchpec 70 Comment
  JEPS42235  Ceanothus integerrimus W. L. Jepson 1932-7-24 16384 Humboldt near Fruitland (Mail Ridge) Comment
  UC1198004  Ceanothus integerrimus Joseph P. Tracy 1921-6-19 5839 Humboldt ridge to n Willow Creek (between Willow Creek and campbell Creek, near Langdon's Gopher Camp.); Brannon Mountain, Northern Coast Ranges 762 Comment
  UC164817  Ceanothus integerrimus J. P. Tracy 1903-5-24 1907 Humboldt Alder Point Eel River 152 Comment
  UCR32170  Ceanothus integerrimus David J. Keil 1983-7-2 17325 Humboldt c. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  RSA46467  Ceanothus integerrimus var. californicus Doris K. Kildale 1927-7-3 3635 Humboldt Willow Creek Flat. Comment
  HSC37607  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-7-11 10 .11775 Humboldt Along county rd. 244 Comment
  CAS-BOT-BC51210  Ceanothus parryi Carl B. Wolf 1927-8-30 1245 Humboldt Bank of stream of Ettersburg Comment
  HSC18310  Ceanothus parryi P. J. Zinke 1950-8-25 158 Humboldt Salmon Creek 3 mi W of Miranda 91 Comment
  HSC36678  Ceanothus parryi R. Sutherland 1975-5-5 19 .5575 Humboldt Bank of Mattole River at Ettersburg Bridge 191 Comment
  HSC43180  Ceanothus parryi R. Sutherland 1975-6-19 1 .19675 Humboldt Van Anken Creek at Mattole River Comment
  HSC43212  Ceanothus parryi R. Sutherland 1975-4-13 0 .13475 Humboldt 2 mi NE of Briceland along county rd. 183 Comment
  UC1071245  Ceanothus parryi A. E. Wieslander 1931-5-23 221 Humboldt w Briceland; Briceland Quad. Comment
  UC1502108  Ceanothus parryi R. Sutherland 1975-4-19 A 4 .19.4.75 Humboldt Whitethorn Road at Van Arken Creek; Briceland Quad., Van Arken Creek 298 Comment
  CAS-BOT-BC53062  Ceanothus pumilus Joseph P. Tracy 1946-5-4 17526 Humboldt Willow Creek Canyon, along Trinity Highway 609 Comment
  RSA46916  Ceanothus pumilus Doris K. Kildale 1926-4-25 1811 Humboldt Hoopa Mt. 793 Comment
  BLMAR660  Ceanothus thyrsiflorus Andrew Maguire 2012-5-21 660 Humboldt King range, Smith-Etter road 320 Comment
  HSC37609  Ceanothus thyrsiflorus R. Sutherland 1975-5-8 11 .8575 Humboldt Along county rd. near Mattole River, 6 mi W of Honeydew Comment
  HSC76579  Ceanothus thyrsiflorus John Demarinis 1981-7-21 873 Humboldt Near Table Bluff 38 Comment
  RSA172184  Ceanothus thyrsiflorus Robert F. Thorne 1957-9-3 19022 Humboldt Patrick's Point State Park. Comment
  UC594242  Ceanothus thyrsiflorus S. K. Harris 1936-6-8 3233 Humboldt roadside on bluff above ocean at Centerville; on bluff above ocean at Centerville Comment
  HSC18355  Ceanothus velutinus Francis Winter 1960-4-24 Humboldt 2 mi. SE of Schoolhouse Peak 838 Comment
  SBBG71412  Ceanothus velutinus H. E. McMinn 1931-6-27 2539 Humboldt up to summit from jct of Trinity and Klamath Rivers Comment
  UC205484  Ceanothus velutinus Joseph P. Tracy 1919-9-24 5295 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  HSC74217  Ceanothus velutinus var. velutinus M. A. Baker 1980-7-23 3177 Humboldt Near Orleans Mtn. 1859 Comment
  UC1119115  Centaurea cyanus H. L. Person 1932-8-7 Humboldt Korbel Eureka Comment
  SEINET202640  Centaurium erythraea Unknown 1954-8-10 4755 Humboldt Along US Highway 101, one mile south of Garberville. 213 Comment
  POM92415  Centaurium muehlenbergii L. R. Abrams 1922-6-25 8228 Humboldt 6 miles N of Garberville, along Eel River. Comment
  UC1196470  Cephalanthera austiniae Joseph P. Tracy 1932-7-20 10734 Humboldt Trinity Summit near Corral Prairie; Trinity Summit 1584 Comment
  HSC4111  Cerastium fontanum subsp. vulgare Richard Steele 1962-5-2 24 Humboldt .25 mi. W of HSC campus 15 Comment
  UC161008  Cerastium glomeratum Joseph P. Tracy 1900-5-24 803 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  UCD98070  Cerastium glomeratum Joseph P. Tracy 1948-4-11 17964 Humboldt South Fork Station, on Eel River. 48 Comment
  HSC98195  Cercis occidentalis Francis Winter 1960-4-24 Humboldt 8 mi. W of Hoopa Indian Reservation, Bair Rd. 686 Comment
  UC249526  Cercis occidentalis Joseph P. Tracy 1922-4-30 6003 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC673250  Cercis occidentalis Lincoln Constance and Reed C. Rollins 1942-5-12 2895 Humboldt bluffs at junction of Klamath River and Salmon River (1 mi s of Somes Bar); Klamath-Siskiyou Region 152 Comment
  HSC31650  Chamaecyparis lawsoniana Timothy B. Devine 1974-5-4 320 Humboldt 1/4 mi. N of junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  HSC44337  Chamaecyparis lawsoniana Brad Klipfel 1975-6-17 674 Humboldt Horse Mtn. Comment
  SBBG56423  Chamaecyparis lawsoniana M. Van Rensselaer 1938-3-31 Humboldt Humboldt County [no specific locality] Comment
  HSC74304  Cheilanthes gracillima M. A. Baker 1980-7-24 3200 Humboldt Near Orleans Mtn. 1625 Comment
  UC673035  Chenopodium macrospermum var. halophilum Harold E. Parks and Joseph P. Tracy 1934-10-13 11151 Humboldt Big Lagoon; on shore 3 Comment
  BLMAR526  Chimaphila menziesii Jennifer Wheeler 2009-6-23 526 Humboldt King range, On King Peak road Comment
  HSC102586  Chimaphila menziesii M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1573 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC55035  Chimaphila menziesii Overton, Butler 1979-7-31 11486 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC45429  Chimaphila menziesii Thomas W. Nelson, Jane Nelson 1977-6-19 3488 Humboldt Along road to Goat Hill 1616 Comment
  UC1197597  Chimaphila menziesii Joseph P. Tracy 1926-6-6 7583 Humboldt near summit on rd. w. from Hoopa to Bair's (Hoopa Mt.); Northern Coast Ranges, Hoopa Mt. 1066 Comment
  CAS-BOT-BC451498  Chimaphila umbellata L. B. Kildale 1930-9-9 10403 Humboldt Bald Mountain 914 Comment
  CAS-BOT-BC452226  Chimaphila umbellata Doris K. Kildale 1925-8-16 1163 Humboldt Trinity Summit Trail between forks of Tish-tang-i-tank Creek & Elk Horn Prairie 1524 Comment
  HSC15439  Chlorogalum pomeridianum var. pomeridianum Paul Shields Jul 1955 Humboldt 6 mi. W of Myers Flat Comment
  JEPS61591  Chlorogalum pomeridianum var. pomeridianum Lincoln Constance 1934-6-12 866 Humboldt Bull Creek Road and n bank South Fork Eel River (Bull Creek Region, Dyerville); Bull Creek Region, N bank South Fork Eel River, Dyerville Comment
  UCD123795  Chloropyron maritimum subsp. palustre Malcolm A. Nobs; S. Galen Smith 1949-8-3 1200 Humboldt bordering Humboldt Bay, about 2 miles north of Eureka. Comment
  POM87953  Chrysanthemum leucanthemum L. R. Abrams, R. C. Bacigalupi 1922-6-25 8262 Humboldt Between Trinidad and Big Lagoon Comment
  CDA7412  Chrysanthemum segetum E. C. Whitney 1964-6-3 Humboldt Renus Ohman property, Rohnerville. 0 Comment
  HSC8057  Chrysolepis chrysophylla H. E. Parks, J. P. Tracy 1930-9-15 765 Humboldt Road to Kneeland Bald Hills Comment
  HSC8061  Chrysolepis chrysophylla Doris K. Kildale 1926-8-22 2570 Humboldt Bald Hills, beyond E end of cabin at Tomlinson's 716 Comment
  UC1193060  Chrysolepis chrysophylla var. minor G. W. Tourtillott 1950-10-11 34 Humboldt 1 mi w Queens Peak 609 Comment
  SEINET7712239  Chrysopsis oregona Chesnut, Drew 1888-7-21 Humboldt S. Fork Mtn. Comment
  UC164825  Cichorium intybus Joseph P. Tracy 1907-6-20 2572 Humboldt Northern Coast Region; vicinity of Eureka Comment
  JEPS14226  Cicuta douglasii Joseph P. Tracy 1927-8-22 8345 Humboldt near High Prairie (on Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  UCD127289  Cicuta douglasii R. Tofsrud; J. M. Tucker 1948-9-4 1860 Humboldt near mouth of Salmon Creek, east side of Highway 101, around 8 miles south of Eureka. Comment
  JEPS11944  Cirsium arvense Rimo Bacigalupi with C. L. Custer and G. T. Robbins 1954-8-11 4757 Humboldt 0.5 mi n Mad River bridge (n of Arcata, in field along U.S. Highway 101); U.S. Highway 101 Comment
  HSC81713  Cirsium brevistylum Thomas W. Nelson, Jane P. Nelson 1980-8-12 6239 Humboldt Logging roads S of Lundbar Hills 61 Comment
  SEINET200853  Cirsium breweri Joseph P. Tracy 1924-7-6 6717 Humboldt Near Ruby Creek on the Willow Creek Hwy north coast ranges Comment
  CDA19782  Cirsium occidentale var. candidissimum J. Dolf 2001-9-6 PDR 069832 Humboldt Northern California; Vicinity of Honeydew. 0 Comment
  RSA0070881  Cirsium remotifolium A. K. Kellogg, W. G. W. Harford 1868-1 558 Humboldt [Unspecified] Comment
  RSA40410  Cirsium vulgare P. A. Munz 1948-8-13 12349 Humboldt Highway 229, 21 miles E of Blue Lake 762 Comment
  UC1122363  Clarkia amoena H. S. Yates 1936-6-23 5875 Humboldt 4 mi nne Cathays Peak; Dyerville Quadrangle Comment
  UC677710  Clarkia amoena S. K. Harris 1936-6-25 671 Humboldt road from Petrolia to Cape Mendocino (s side of Domingo Gulch) 30 Comment
  UC144074  Clarkia amoena subsp. amoena Joseph P. Tracy 1909-7-31 3026 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  CAS-BOT-BC160965  Clarkia amoena subsp. amoena Lester Rowntree 1937-8-18 s.n. Humboldt Between Ferndale & Capetown Comment
  HSC8649  Clarkia amoena subsp. huntiana Thomas W. Nelson, James Nelson 1975-9-3 2191 Humboldt Along N side of Ashfield Butte Comment
  RSA12450  Clarkia amoena subsp. huntiana Carl B. Wolf 1934-6-30 5843 Humboldt Shelter Cove, 1 mile from ocean 30 Comment
  CAS-BOT-BC164179  Clarkia concinna S. K. Harris; J. P. Tracy 1936-6-10 3265 Humboldt West of the South Fork of the Trinity River near its mouth 640 Comment
  CHSC52939  Clarkia davyi L. P. Janeway 1984-5-16 792 Humboldt On the North Spit of Humboldt Bay; on the west side of Samoa Rd ca 1/4 mile north of the boat ramp. 3 Comment
  LA206350  Clarkia gracilis subsp. gracilis H. Lewis; M. Lewis 1947-6-13 420 Humboldt highway 36, 2.3 mi. E of S Fork of Van Duzen River (Bridge 4-119) Comment
  CAS-BOT-BC172507  Clarkia purpurea subsp. quadrivulnera Doris K. Kildale 1925-6-28 804 Humboldt Kneeland Prairie, bald hills 762 Comment
  CAS-BOT-BC172510  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1932-6-26 10264 Humboldt Valley of South Yager Creek 762 Comment
  JEPS43827  Clarkia purpurea subsp. quadrivulnera Milo S. Baker 1923-7-20 67 b Humboldt Redwood House North Coast Comment
  JEPS43680  Clarkia rhomboidea Lincoln Constance 1934-6-15 880 Humboldt Summit Grasshopper Peak; South Fork Eel River, Bull Creek Region 975 Comment
  HSC75444  Claytonia cordifolia J. O. Sawyer 1980-7-18 3601 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  SEINET6903113  Claytonia perfoliata Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  JEPS43187  Claytonia perfoliata subsp. mexicana Joseph P. Tracy 1916-4-30 4682 Humboldt Table Bluff Northern Coast Ranges, Humboldt Bay (aroung Humboldt Bay) 152 Comment
  HSC17740  Claytonia rubra subsp. rubra H. E. Parks, J. P. Tracy 1930-5-25 876 Humboldt Laribee Valley 762 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
  HSC4886  Claytonia sibirica J. O. Sawyer 1968-9-11 732 Humboldt Along Mill Creel 1524 Comment
  HSC59687  Claytonia sibirica George Kirn 1977-10-3 Humboldt Vicinity of Jolly Giant Creek, 1/4 mi. E of HSU campus 46 Comment
  RSA67628  Claytonia sibirica P. A. Munz 1951-7-15 16549 Humboldt 5 miles N of Willow Creek 305 Comment
  SDSU9795  Claytonia sibirica D. F. Howe 1961-8-1 3114 Humboldt 12.7 miles north of Arcata on # 101. Comment
  HSC99242  Claytonia washingtoniana C. E. Fellows 1971-6-7 456 Humboldt 1 mi. E of Freshwater, near creek S of Freshwater Park Comment
  JEPS60566  Clematis ligusticifolia Lincoln Constance 1934-6-18 898 Humboldt near S. Fork R.R. Station & P.O (border of N. Dyerville Flat); Bull Creek Region, W. Fork Eel R. Comment
  SEINET12047067  Clintonia andrewsiana F. H. Utech, Utech, C. L. 1972-1 72 -610 Humboldt Arcata, Humboldt State University Forest, W of campus 198 Comment
  UC30060  Clintonia uniflora Mrs. M. H. Manning Humboldt near Hupa (Redwood Trail); Redwood Trail Comment
  POM210220  Collinsia grandiflora H. E. Parks, Joseph P. Tracy 1930-5-25 741 Humboldt Laribee Valley. 762 Comment
  HSC98870  Collinsia linearis Cara Witte 2007-6-20 313 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  UC1196756  Collinsia linearis Joseph P. Tracy 1930-7-23 9140 Humboldt lower slopes of Horse Mountain Horse Mountain 1066 Comment
  UC1196760  Collinsia parviflora Joseph P. Tracy 1929-7-4 8623 Humboldt French Camp Ridge 1066 Comment
  UC604633  Collinsia parviflora Joseph P. Tracy 1938-6-13 15922 Humboldt Grouse Mountain, at Cold Springs Cold Springs; Grouse Mountain, Cold Springs 1432 Comment
  HSC39622  Collinsia parviflora Thomas W. Nelson, Jane P. Nelson 1976-6-15 2726 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
  HSC60032  Collinsia rattanii M. A. Baker 1978-5-6 504 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  UC176050  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1913-5-4 4053 Humboldt Kneeland Prairie; North Coast Ranges; Kneeland Prairie 762 Comment
  HSC48850  Collomia grandiflora Brad Klipfel 1973-7-15 208 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC32838  Collomia heterophylla Thomas W. Nelson, James Nelson 1973-5-28 948 Humboldt McKeown Ranch N of Dinsmore 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
  HSC16936  Collomia tracyi J. P. Tracy 1927-6-12 8161 Humboldt Horse Mtn. 1067 Comment
  HSC97106  Collomia tracyi Yun Chan, Renee Meyer, Sophary Yun 2007-6-11 6 Humboldt 14.1 mi. S of Hwy. 299 on FS Rd. NF1 1364 Comment
  HSC99064  Collomia tracyi Cara Witte 2007-7-20 569 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1522 Comment
  UC133632  Collomia tracyi Joseph P. Tracy 1908-6 2719 Humboldt opposite Buck Mountain (sand bars along river); Northern Coast Ranges, valley of Van Duzen River; valley of Van Duzen River, opposite Buck Mt., Humboldt Co. 304 Comment
  BLMAR298  Comarum palustre Jennifer Anthony-Wheeler 2002-7-23 298 Humboldt Headwaters Forest Reserve, growing in a pond with large floating logs 426 Comment
  HSC104334  Coptis laciniata James Regan, Humboldt Redwood Co., LLC 2009-4-1 33 Humboldt Snow Camp Rd., Bald Mtn. Creek Comment
  HSC64188  Corallorhiza mertensiana J. O. Sawyer, M. A. Ericksen 1979-6-23 3380 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  UC13532  Corallorhiza mertensiana Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  UC1196459  Corallorhiza mertensiana Joseph P. Tracy 1908-6 2724 Humboldt Buck Mt. Northern Coast Ranges (nw slope, foot) 304 Comment
  CAS-BOT-BC101075  Coreopsis lanceolata Henry M. Pollard 1948-7-27 s.n. Humboldt Barker Ranch on Red Cap Creek, near Orleans Comment
  CAS-BOT-BC101142  Corethrogyne filaginifolia Joseph P. Tracy 1936-7-10 15046 Humboldt Vicinity of Carlotta 30 Comment
  UC630635  Cornus canadensis Joseph P. Tracy 1939-7-9 16321 Humboldt Bald Mountain. at Lake Prairie Bald Mountain 1066 Comment
  CAS-BOT-BC209753  Cornus glabrata L. R. Abrams 1922-6-25 8219 Humboldt Camp 6 mi north of Garberville Comment
  UC183574  Cornus glabrata Joseph P. Tracy 1913-6-21 4251 Humboldt Van Duzen R. just below Low Gap; Northern Coast Ranges, Van Duzen R. 762 Comment
  CAS-BOT-BC212018  Cornus nuttallii Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway Comment
  UC205636  Cornus nuttallii Joseph P. Tracy 1919-9-14 5213 Humboldt near its mouth Willow Creek - Northern Coast Ranges, Willow Creek (a tributary of Trinity) Comment
  HSC57091  Cornus sericea subsp. sericea Overton, Butler 1979-7-24 9805 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  UC502982  Cornus sericea subsp. sericea Joseph P. Tracy 1929-8-18 8653 Humboldt on Van Duzen R. opposite Buck Mt. (Dinsmore's Ranch); Northern Coast Ranges, Van Duzen R., Dinsmore's Ranch 670 Comment
  RSA273346  Cornus sessilis J. P. Smith, J. O. Sawyer, Smith 1976-5-2 8619 Humboldt 3.7 miles north of junction with State Route 299 on State Route 96. 61 Comment
  SJSU2584  Cornus sessilis H. L. Buckalew 1962-7-2 Humboldt junction of Willow Cr & E Fork Willow Cr on Hwy 299 Comment
  UC161494  Coronopus didymus Joseph P. Tracy 1901-7-31 1234 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC38648  Coronopus didymus J. P. Smith 1970-11-18 4629 Humboldt HSU campus Comment
  UC1197937  Corylus californica Joseph P. Tracy 1946-8-25 17640 Humboldt Table Bluff, foot of N slope along Hookton Road 9 Comment
  HSC58193  Corylus cornuta subsp. californica G. L. Clifton, Griswold 1979-8-2 12290 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  CAS-BOT-BC180307  Corylus cornuta subsp. californica H. E. McMinn 1922-8-4 346 Humboldt Along Van Duzen River Comment
  SEINET3817860  Cotula coronopifolia J. P. Tracy 1903-8-9 1948 Humboldt Immediate vicinity of Eureka Comment
  HSC95297  Cotula coronopifolia Laura Hagenauer 2002-4-29 32 Humboldt Path to McDaniel Slough, V St. Arcata 0 Comment
  UC667078  Crassula aquatica Joseph P. Tracy 1935-5-30 13919 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UC492243  Crassula connata var. subsimplex Joseph P. Tracy 1931-3-26 9293 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R., Alton 30 Comment
  UC1199460  Crepis acuminata Joseph P. Tracy 1933-7-25 12826 Humboldt Horse Mountain 1432 Comment
  UC1199456  Crepis capillaris Joseph P. Tracy 1901-6-16 1142 Humboldt Immediate vicinity of Eureka 0 Comment
  UC129417  Crepis capillaris Joseph Burtt Davy and Walter C. Blasdale 1899-6-15 5537 B Humboldt near Scotia Comment
  UC540835  Crepis capillaris David D. Keck and J. Clausen 1935-6-16 3396 Humboldt just s Trinidad Comment
  CAS-BOT-BC290590  Crepis capillaris L. R. Abrams; R. Bacigalupi 1922-6-25 8287 Humboldt North of Big Lagoon Comment
  HSC26921  Crepis capillaris Brad Klipfel 1973-7-24 221 Humboldt Arcata Comment
  HSC5446  Crepis capillaris L. K. Weld 1967-7-16 2 Humboldt Myrtle Ave. 1 mi. S of Freshwater Corners Comment
  POM92411  Crepis capillaris L. R. Abrams 1922-6-25 8234 Humboldt 2 miles south of Fortuna Comment
  SDSU3878  Crepis capillaris D. F. Howe 1961-7-31 3098 Humboldt 37.7 miles south of Eureka on #101. Comment
  UC165199  Crepis monticola Joseph P. Tracy 1908-6 2915 Humboldt Buck Mountain Northern Coast Ranges (nw slope) 1219 Comment
  UC302296  Crepis pleurocarpa Joseph P. Tracy 1926-6-20 7621 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  HSC96260  Crepis pleurocarpa Laurel Goldsmith, Wanda Naylor 2005-6-15 10 Humboldt 1 mi. SE of Grouse Mtn. on unnamed F.S. road 1400 Comment
  UC905064  Crepis setosa Henry M. Pollard 1948-8-8 Humboldt roadside between Orleans and Camp Creek Comment
  SEINET5261839  Crocosmia X crocosmiiflora Unknown 2002-8-22 86 Humboldt On Fischer Road just N of the Mad River. Comment
  HSC7973  Croton setiger H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  SEINET10578683  Croton setiger Daniel K. Harder 1994-10-4 Harder 2495 Humboldt Ca. 6 km W/SW of Fort Seward along Fort Seward Road along middle ridge (near powerlines), collections from rock outcrops in cattle pasture with islands of redwoods and Umbellaria; near small spring in hillside. 570 Comment
  HSC40818  Cryptantha affinis Thomas W. Nelson, Jane P. Nelson 1976-6-22 2851 Humboldt Along road to Goat Hill at spring. 1646 Comment
  UC1239655  Cryptantha flaccida Joseph P. Tracy 1939-8-5 16383 Humboldt Dinsmore's 746 Comment
  SBBG16519  Cryptantha leiocarpa D. E. Breedlove 1962-6-7 3051 Humboldt 1.5 mi S of Samoa on peninsula on W side of Humboldt Bay Comment
  UC1222272  Cryptantha milobakeri Joseph P. Tracy 1949-8-11 18469 Humboldt 2 to 6 mi s Grouse Mt. (e of headwaters of Redwood Creek, electric power line southward); Kinsey Ridge 1280 Comment
  HSC102630  Cryptantha torreyana M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1615 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC63877  Cryptogramma acrostichoides M. A. Baker 1979-6-27 926 Humboldt E of Oregon Creek Comment
  UC502918  Cupressus lawsoniana Joseph P. Tracy 1927-3-27 7864 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 762 Comment
  HSC44543  Cuscuta occidentalis Brad Klipfel 1973-7-15 162 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC3642  Cynoglossum grande Francis Winter 1960-4-23 Humboldt 1.5 mi. E of Korbel, on Korbel-Maple Creek Rd. 61 Comment
  CAS-BOT-BC190379  Cynosurus echinatus H. E. Parks; Joseph P. Tracy 1933-6-11 12542 Humboldt Northern Coast Ranges. Near Miranda. 152 Comment
  HSC49104  Cynosurus echinatus Thomas W. Nelson, Jane P. Nelson 1978-7-3 4413 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC71713  Cynosurus echinatus M. A. Baker 1980-6-26 2433 Humboldt Near Sims Creek 610 Comment
  RSA137066  Cynosurus echinatus I. L. Wiggins 1957-6-21 14142 Humboldt Margin of grassy slide area on east side of road, 1 mile south of Garberville Comment
  UC1145090  Cynosurus echinatus Joseph P. Tracy 1941-6-29 16920 Humboldt McClellan Mt. 762 Comment
  JEPS64087  Cyperus bipartitus Joseph P. Tracy 1931-9-7 9664 Humboldt Trinity R. Valley at Willow Creek; Trinity R, Valley, Willow Creek 152 Comment
  CDA38926  Cyperus eragrostis Gordon Leppig 1998-6-26 859 Humboldt McKinleyville, Hammond Trail, 100 m south of Knox Cove. Comment
  CAS-BOT-BC133727  Cypripedium californicum E. P. Chase 1933-7-1 2008 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  UC71494  Cystopteris fragilis Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5844 Humboldt Trinity Summit Comment
  UCR123955  Cystopteris fragilis George K. Helmkamp, E. A. Helmkamp 2001-7-8 6970 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  HSC58694  Dactylis glomerata Overton, Butler 1979-8-2 12697 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1152021  Danthonia californica Joseph P. Tracy 1951-6-26 19571 a Humboldt Snow Camp and Twin Lakes vicinity Comment
  UC552732  Danthonia californica var. americana Joseph P. Tracy 1935-5-25 13853 Humboldt Fort Seward 106 Comment
  CAS-BOT-BC194415  Danthonia intermedia Joseph P. Tracy 1935-7-25 14231 Humboldt Open places at McKay Prairie, Trinity Summit 1584 Comment
  UC552754  Danthonia intermedia Joseph P. Tracy 1934-7-18 13421 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  SBBG44189  Darmera peltata K. K. Muller 1954-6-21 630 Humboldt Mad River Camp 2, Mad River, below Ruth Post Office Comment
  UC303173  Darmera peltata Joseph P. Tracy 1923-4-15 6180 Humboldt Redwood Creek Northern Coast Ranges (at Berry's) 274 Comment
  JEPS49583  Darmera peltata W. L. Jepson 1902-6-30 1958 Humboldt Redwood Creek; Berry's Ranch Comment
  UC1197353  Daucus pusillus Harley P. Chandler May, 1901 1154 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 3 Comment
  UC420522  Daucus pusillus Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5417 Humboldt near Hubbards Comment
  UC164990  Deinandra corymbosa J. P. Tracy 1902-8-10 1768 Humboldt immediate vicinity Eureka 0 Comment
  SEINET4465020 Image available Delphinium decorum H. E. Parks, J. P. Tracy 1930-1 789 Humboldt Laribee Valley 914 Comment
  HSC102608  Delphinium decorum subsp. tracyi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1595 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  CAS-BOT-BC9026  Delphinium decorum subsp. tracyi John Rehling 1975-5-12 71 Humboldt Bald Hills, 2 miles up Williams Ridge Road. Comment
  RSA79370  Delphinium decorum subsp. tracyi E. K. Balls, Lee W. Lenz 1952-5-12 17196 Humboldt 11.2 miles E along Hwy 36 from Bridgeville to Cobbs Comment
  HSC75491  Delphinium depauperatum J. O. Sawyer 1980-7-18 3632 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC25012  Delphinium nudicaule Eugene Andreuccetti 1964-5-2 38 Humboldt 50 yds. from Ruby Creek on Hwy. 299 Comment
  UC1196328  Delphinium nudicaule Joseph P. Tracy 1937-5-30 15303 Humboldt 5 mi n Blocksburg; Larrabee Creek 365 Comment
  UC1196333  Delphinium nudicaule Joseph P. Tracy 1922-5-29 6081 Humboldt rocky slopes at head Northern Coast Ranges, South Yager Creek 762 Comment
  HSC31440  Delphinium nuttallianum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5558 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  UC249645  Delphinium nuttallianum Joseph P. Tracy 1922-4-30 6029 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC34917  Delphinium trolliifolium Thomas W. Nelson, James Nelson 1975-5-24 1862 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CAS-BOT-BC121971  Delphinium trolliifolium Lester Rowntree 1934-5-26 s.n. Humboldt Below Orrick's [Orick] Comment
  UC1225745  Delphinium trolliifolium Joseph P. Tracy 1946-6-15 17561 Humboldt lower slopes of mt Horse Mountain 1066 Comment
  BLMAR661  Deschampsia cespitosa Jennifer Wheeler 2012-7-13 661 Humboldt King range 670 Comment
  HSC9584  Deschampsia cespitosa C. B. Wolf 1927-8-22 794 Humboldt Big Lagoon Comment
  HSC9586  Deschampsia cespitosa G. N. Bos 1965-5-15 255 Humboldt 8 mi. W of Berry Summit, along Hwy. 299 762 Comment
  HSC96496  Deschampsia cespitosa subsp. cespitosa Gordon Leppig 1998-7-19 983 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  HSC98875  Deschampsia danthonioides Cara Witte 2007-5-23 99 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1.5 miles south of intersection with 5N04 and 4N32E. 1402 Comment
  UC1103224  Deschampsia danthonioides Joseph P. Tracy 1908-6 2753 Humboldt opposite Buck Mt.; Northern Coast Ranges, valley of Van Duzen R. 762 Comment
  HSC58645  Deschampsia elongata G. L. Clifton, Griswold 1979-7-31 11665 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC63882  Deschampsia elongata M. A. Baker 1979-6-29 960 Humboldt Hopkins Creek 750 Comment
  POM207196  Deschampsia elongata Jos Burtt Davy 1899-6-12 5476 Humboldt Elk Prairie Comment
  UC187267  Deschampsia elongata Joseph P. Tracy 1911-7-7 3412 Humboldt 3 mi. n.w. of junction of Willow Creek with Trinity R. (near Beebe's Ranch, at meadows on mt. side); Northern Coast Ranges 914 Comment
  HSC98873  Dianthus armeria Cara Witte 2007-8-1 618 Humboldt Friday Ridge Road (Forest Service Road 6N08). Approximately 1.25 miles northeast of intersection with Friday Camp. 1222 Comment
  CHSC95018  Dicentra formosa K. Lang; J. Lang 2005-3-14 28 Humboldt Trinidad, N. California coast 51 Comment
  RSA433571  Dicentra formosa subsp. formosa Maude Minthorn s.n. Humboldt Ferndale. Comment
  CAS-BOT-BC402412  Dicentra formosa subsp. formosa S. Morrissette; J. Williams; K. Kopper 1994-5-6 040 Humboldt Intersection of Hwy 299 & Redwood Valley Rd. 609 Comment
  JEPS9734  Dicentra pauciflora Joseph P. Tracy 1933-7-16 12776 Humboldt near McKay Camp (South Fork Mountain); North Coast Ranges, South Fork Mountain 1676 Comment
  RSA10046  Dichanthelium acuminatum var. fasciculatum Joseph P. Tracy 1927-8-7 8313 Humboldt Trinity River Valley, at Willow Creek Comment
  RSA167425  Dichelostemma capitatum subsp. capitatum Joseph P. Tracy 1951-5-20 19404 Humboldt Near the rockpile toward Ashfield Buttem Kneeland Prairie. Comment
  SEINET3885611  Dichelostemma ida-maia Thomas Nelson, Jane P. Nelson; James Nelson 1975-6-21 1947 Humboldt Beside Highway 36 ca. 5 mi. east of Bridgeville.; 0 Comment
  UC1198180  Dichelostemma ida-maia Joseph P. Tracy 1948-9-5 18187 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  CAS-BOT-BC501022  Dichelostemma ida-maia Henry M. Pollard 1946-8-16 s.n. Humboldt Across [Klamath] river from Orleans Comment
  JEPS508  Dichelostemma ida-maia Joseph P. Tracy 1937-7-19 15450 Humboldt nw slope Buck Mountain 914 Comment
  SEINET3885614  Dichelostemma ida-maia D. W. McNeal 1977-6-6 2045 Humboldt Dry shaded hillside above the Bridgeville-Kneeland Rd., 0.4 mi. N. of Hwy. #36.; 0 Comment
  UC162603  Dichelostemma ida-maia Joseph P. Tracy 1911-7-7 3438 Humboldt near Brannan Mountain summit (viz ridge n of Willow Creek, between Willow Creek and Campbell Creek); Northern Coast Ranges 1219 Comment
  JEPS11291  Digitalis purpurea Lincoln Constance 1934-5-26 682 Humboldt s end Dyerville Bridge (bar of South Fork of Eel River); South Fork Eel River, Bull Creek Region 45 Comment
  HSC62775  Digitalis purpurea M. Dean Griswold Jr. 1979-5-30 108 Humboldt By Cypress Hall, HSU campus Comment
  RSA152373  Digitaria ischaemum Joseph P. Tracy 1950-9-22 19371 Humboldt Klamath River, near Slate Creek, below Orleans 8 miles. 122 Comment
  HSC7538  Dipsacus fullonum Wm. F. Bowman 1968-11-9 Humboldt Beach front of Mad River Rd. Comment
  POM277205  Disporum smithii Lyman Benson 1929-6-12 1752 Humboldt Weott Ranger St[ation]; S Fork Eel River. Comment
  SEINET4170363  Disporum smithii Unknown 1933-5-12 3413 Humboldt Dyerville, South Fork of the Eel River Comment
  CDA18208  Distichlis spicata G. D. Barbe, T. C. Fuller 1974-6-17 1835 Humboldt North Coast Ranges; Lower Pacific Drive, S of sewage plant, W of golf course, at Sail Court, Shelter Cove. 60 Comment
  UC38068  Distichlis spicata Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6211 Humboldt near Ferndale Comment
  HSC17871  Dodecatheon hendersonii Elrid H. Spinas 1948-5-15 8 Humboldt Horse Mtn. Comment
  RSA20854  Downingia yina C. B. Wolf 1937-6-18 8894 Humboldt 1/2 mile S of Fortuna. 15 Comment
  UC180234  Drosera rotundifolia Joseph P. Tracy 1914-9-6 4601 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  RSA21039  Drymocallis glandulosa var. wrangelliana Carl B. Wolf 1937-6-19 8908 Humboldt Van Duzen River at Dunns Mill, 5 miles below Bridgeville. 91 Comment
  HSC99091  Drymocallis lactea var. lactea Cara Witte 2008-7-16 911 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  CAS-BOT-BC536647  Drymocallis pseudorupestris Doris K. Kildale 1927-7-22 3817 Humboldt Lassic peaks 1661 Comment
  HSC32284  Drymocallis rhomboidea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5618 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  POM281637  Dryopteris arguta Lyman Benson 1929-7-16 1829 Humboldt Weott Ranger Station. Comment
  UCSB30620  Dryopteris expansa Edwards, David 1974-9-2 Humboldt ca. 5ft N of dirt road, ca. 350 ft from its junction with Fickle Hill Rd., Arcata. 106 Comment
  CAS-BOT-BC427987  Dudleya caespitosa Carl B. Wolf 1927-8-29 1222 Humboldt Coast so. of Cape Mendocino at Devils Gate Comment
  SFV7745  Dysphania botrys T. Gordon, K. Kimbrough 1975-8-22 1225 Humboldt Eel River. 61 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
  HSC7305  Eleocharis acicularis J. P. Tracy 1934-7-13 13393 Humboldt Dow's Prairie 61 Comment
  OBI22607  Eleocharis acicularis Joseph P. Tracy 1934-7-13 13393 Humboldt Dow's Prairie Comment
  UC1100621  Eleocharis acicularis Malcolm A. Nobs and S. Galen Smith 1949-8-9 1243 Humboldt town of Blue Lale Mad River (marshy pond on s side) Comment
  JEPS64131  Eleocharis macrostachya W. L. Jepson 1921-8-7 9328 Humboldt Stone Lagoon Humboldt Coast Comment
  HSC69758  Eleocharis macrostachya Thomas W. Nelson 1977-9-22 3749 Humboldt E side of SR 101 just N of the Eureka Airport Comment
  UC1103669  Eleocharis obtusa Joseph P. Tracy 1931-9-7 9652 Humboldt Trinity River Valley at Willow Creek 152 Comment
  HSC7339  Eleocharis ovata D. E. Anderson 1963-9-29 2855 Humboldt Fish Lake Comment
  CHSC96444  Eleocharis pachycarpa Gordon Leppig 1997-8-3 648 Humboldt Big Lagoon County Park, Big Lagoon Bog. UTM Zone 10 NAD 1927, 405321E 4557202N. 3 Comment
  UC249740  Eleocharis parvula Joseph P. Tracy with H. E. Parks 1924-8-3 6744 Humboldt Stone Lagoon 6 Comment
  RSA10130  Elymus X hansenii Joseph P. Tracy 1930-7-19 9054 Humboldt South Fork Mountain; open glades long summit near Blake Lookout 1738 Comment
  HSC9695  Elymus condensatus J. Wendell Howe 1253 Humboldt Little River Beach Comment
  HSC58661  Elymus elymoides var. elymoides G. L. Clifton, Griswold 1979-7-1 11948 Humboldt Near Horse Trail Ridge, close to the town of Hoopa. 516 Comment
  HSC58665  Elymus elymoides var. elymoides G. L. Clifton, Griswold 1979-8-1 12052 Humboldt Near High Spring, close to the town of Hoopa. 1798 Comment
  HSC36619  Elymus glaucus J. D. Ackerman 1974-5-25 256 Humboldt Trinidad, Trinidad Beach S of Trinidad Head. Comment
  HSC74458  Elymus glaucus Gail Newton 1980-8-10 2016 Humboldt Near Blake Mtn. 1798 Comment
  HSC9718  Elymus glaucus D. E. Anderson, T. O. Preston 1963-3-1 19 Humboldt Near bridge over Supply Creek. Comment
  OBI37800  Elymus glaucus David J. Keil 1983-7-1 17280 Humboldt 2.5 mi NE of Honeydew along Bull Crk Flats rd Comment
  RSA129272  Elymus glaucus H. S. Yates 1936-6-17 5695 Humboldt Lower N.W. slope of Buck Mt.; South Fk. Pk. 793 Comment
  SEINET10554247  Elymus glaucus Harold E. Parks, Joseph P. Tracy 1934-6-14 Parks 11026 Humboldt Horse Mountain. In chparral. 1372 Comment
  UCD61278  Elymus macounii August L. Hormay 1932-5-12 Humboldt Bull Creek Road, near bridge. Comment
  HSC9734  Elymus mollis subsp. mollis S. J. Hawks, D. E. Anderson 1965-5-30 65 Humboldt 1/2 mi. SW of Arcata, Airport. Comment
  UC189196  Elymus multisetus Joseph P. Tracy 1912-7-26 3839 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  CHSC32975  Elymus trachycaulus subsp. trachycaulus Thomas Nelson; Jane Nelson 1976-7-26 3023 Humboldt The Lassics. Trinity-Humboldt Co. line. Road cut along 1S07 west of Black Lassic. 1615 Comment
Read comments
Dec 11 2010
  UC1103469  Elytrigia repens Joseph P. Tracy 1937-8-13 15664 Humboldt Loleta 9 Comment
  UC184152  Elytrigia repens Joseph P. Tracy 1912-7-7 3743 Humboldt Eureka Northern Coast Region (edge of salt marsh) 0 Comment
  HSC33187  Empetrum nigrum Gary S. Lester, Linda M. Barker 1975-3-29 600 Humboldt Elk Head, N of Trinidad Head 15 Comment
  HSC43234  Epilobium brachycarpum R. Sutherland 1976-8-6 4 .6876 Humboldt 229 Comment
  POM225520  Epilobium brachycarpum P. A. Munz 1936-8-13 14381 Humboldt 10 miles west of Willow Creek. Comment
  JEPS31510  Epilobium campestre Joseph P. Tracy 1938-7-5 16010 Humboldt open flat by old Strong's District School House (5 mi e of town); Carlotta 45 Comment
  UC314620  Epilobium campestre Joseph P. Tracy 1923-6-20 6341 Humboldt Miranda 91 Comment
  HSC76621  Epilobium ciliatum subsp. ciliatum Teresa Prendusi 1981-5-7 117 Humboldt Near Slate Creek Butte 1158 Comment
  JEPS31530  Epilobium ciliatum subsp. ciliatum Lincoln Constance 1934-5-31 765 Humboldt Bull Cr. flat South Fork Eel River, Bull Creek region, Bull Creek (along n side of creek from w boundary of Park to Grasshopper Pk. (Squaw Cr. rd.)) Comment
  HSC76625  Epilobium ciliatum subsp. glandulosum Teresa Prendusi 1981-7-24 481 Humboldt Near Whiteys Peak 1585 Comment
  HSC99438  Epilobium ciliatum subsp. glandulosum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 88 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1951301  Epilobium ciliatum subsp. watsonii Robert F. Thorne and P. Everett 1965-8-5 35153 Humboldt Samoa Dunes. Comment
  HSC38333  Epilobium ciliatum subsp. watsonii Peter Sorensen 1976-7-14 Humboldt N Spit of Humboldt Bay, S of Samoa in the vicinity of Humboldt Co. Airport Comment
  JEPS31500  Epilobium foliosum Joseph P. Tracy 1939-5-30 16302 Humboldt Dinsmore's Ranch Northern Coast Ranges, Van Duzen River (opposite Buck Mountain) 670 Comment
  RSA167260  Epilobium glaberrimum subsp. glaberrimum Joseph P. Tracy 1950-8-7 19272 Humboldt On trail between Box Camp and Croghan [Groghan] Hole, 2 miles east of Box Camp. Trinity Summit Comment
  UC1222846  Epilobium glaberrimum subsp. glaberrimum Joseph P. Tracy 1950-8-7 19272 Humboldt 2 mi e Box Camp (on trail between Box Camp and Croghan Hole); Trinity Summit Comment
  BLMAR178  Epilobium minutum Donald Hazlett 1994-6-7 178 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC103079  Epilobium minutum Sydney Carothers 2014-6-12 12 Humboldt Six Rivers National Forest, Lassics Botanical Area, Red Lassic. Near upper pond and rustic camp site. 1706 Comment
  HSC56941  Epilobium minutum Overton, Butler 1979-7-23 9420 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  RSA249432  Epilobium minutum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5598 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  RSA0091002  Epilobium oreganum Dean Wm. Taylor 2006-8-31 19633 Humboldt UNDERWOOD MOUNTAIN: meadowy opening in forest above the Hog Ranch' site on the USGS map. 883 Comment
  SEINET10632322  Epilobium oreganum Chestnut 1888-7-28 CHESTNUT s.n. Humboldt Grouse Creek, streams F Comment
  HSC75459  Epilobium oregonense J. O. Sawyer 1980-7-18 3586 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC97438  Equisetum hyemale subsp. affine Ivy Watson 2008-10-11 59 Humboldt Near Mad River mouth, S bank, about 500 ft. from river 9 Comment
  HSC881  Equisetum telmateia subsp. braunii C. B. Wolf 1927-8-28 1181 Humboldt On rd. between Eureka and Arcata Comment
  RSA239690  Equisetum telmateia var. braunii Larry E. DeBuhr 1973-4-23 986 Humboldt Richardson Grove Redwood State Park. Comment
  CAS-BOT-BC213558  Eragrostis hypnoides Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans Region Comment
  CAS-BOT-BC213622  Eragrostis mexicana subsp. virescens Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC291161  Erechtites L. R. Abrams 1927-8-31 12052 Humboldt Arcata to Eureka - along highway Comment
  POM257488  Erechtites glomeratus H. E. Parks, S. T. Parks 1937-07 24033 Humboldt Spruce Cove, Trinidad. 61 Comment
  HSC68152  Erechtites glomeratus J. O. Sawyer, J. P. Smith 1975-5-24 8081 Humboldt Off Samoa Blvd. across from the boat landing Comment
  RSA95039  Erechtites minimus F. W. Peirson 1923-7-10 3926 Humboldt A few miles from Garberville. Comment
  CAS-BOT-BC58927  Erica Wilma Follette 2002-2-9 s.n. Humboldt Along east side of Highway 101, near Patrick's Point State Park Comment
  UC1193151  Ericameria arborescens P. J. Zinke 162 Humboldt 1 mi sw Bear Butte; Quad 29C<l?> 609 Comment
  UC1792474  Erigeron Thomas W. Nelson, Sydney Carothers 2004-6-18 9249 Humboldt Along Swayback Ridge Road which branches of Forest Service Rooad 1N08 ca 1/4 mil past gate. 1356 Comment
  CAS-BOT-BC293489  Erigeron aliceae Joseph P. Tracy 1930-7-18 9035 Humboldt South Fork Mountain. Near McKay Camp 1676 Comment
  POM256480  Erigeron aliceae Joseph P. Tracy 1930-7-18 9035 Humboldt South Fork Mountain, near McKay Camp. 1677 Comment
  CAS-BOT-BC296108  Erigeron foliosus var. confinis J. W. Tilden 1946-6-21 s.n. Humboldt Bluff Creek Comment
  CAS-BOT-BC296120  Erigeron foliosus var. confinis Alice Eastwood; John Thomas Howell 1937-6-26 5071 Humboldt Near Orleans Comment
  SEINET11859406  Erigeron foliosus var. confinis J. P. Tracy 1947-7-5 17785 Humboldt Trinity Summit, ridge top 1 mi W of Mud Springs Comment
  JEPS41520  Erigeron foliosus var. mendocinus Lincoln Constance 1934-5-29 720 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region, Upper Look Prairie 365 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
  HSC5524  Erigeron glaucus J. W. Johnson 1961-8-17 1036 Humboldt Dune fields of W.M. Lanphere Farm, Samoa Peninsula Comment
  RSA636111  Erigeron glaucus R. F. Thorne 1974-7-29 45079 Humboldt Samoa Dunes: Between Humboldt Bay and Pacific Ocean. Comment
  HSC48815  Erigeron inornatus var. inornatus Brad Klipfel 1973-7-31 229 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1199406  Erigeron inornatus var. inornatus Joseph P. Tracy 1935-7-27 14280 Humboldt open places at Corral Prairie; Trinity Summit 1584 Comment
  HSC5526  Erigeron philadelphicus W. K. Parks Jun 1932 1381 Humboldt Trinidad Comment
  JEPS57404  Erigeron philadelphicus var. philadelphicus L. R. Heckard with T. I. Chuang 1968-7-4 1980 Humboldt n end Big Lagoon Comment
  JEPS25617  Erigeron philadelphicus var. philadelphicus Rimo Bacigalupi 1959-7-7 7250 Humboldt immediately behind bluff headland (just n of road summit at this point); Cape Mendocino 30 Comment
  JEPS41377  Erigeron philadelphicus var. philadelphicus W. L. Jepson 1934-5-8 16723 Humboldt Benbow, s Humboldt County South Fork Eel River, Benbow Comment
  UC164844  Erigeron philadelphicus var. philadelphicus Joseph P. Tracy 1911-6-11 3240 Humboldt Trinidad Northern Coast Ranges, Trinidad 91 Comment
  JEPS867  Erigeron strigosus var. strigosus Harley P. Chandler 1901-6-1 1402 Humboldt North Coast Ranges, Klamath River 243 Comment
  HSC76558  Eriogonum compositum Teresa Prendusi 1981-7-24 516 Humboldt Near Whiteys Peak 1634 Comment
  HSC32328  Eriogonum compositum var. compositum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5669 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  CAS-BOT-BC259157  Eriogonum latifolium Ira L. Wiggins 1930-7-11 4680 Humboldt Near Samoa Comment
  CAS-BOT-BC259181  Eriogonum latifolium H. E. Parks 1941-8-1 24198 Humboldt Little River Comment
  SD38695  Eriogonum latifolium Edith A. Purer 1932-7-27 4149 Humboldt Samoa, stabilized sand dunes Comment
  HSC26917  Eriogonum latifolium Brad Klipfel 1973-7-30 220 Humboldt Samoa Rd. near Mad River Slough Comment
  CAS-BOT-BC259536  Eriogonum luteolum var. luteolum Milo S. Baker 1927-8-14 2435 a Humboldt Near Summit of ridge West of Bull Creek Comment
  UC1222337  Eriogonum nudum var. nudum Joseph P. Tracy 1950-8-20 19320 Humboldt just above Slate Creek (along Klamath River at Big Bar); Klamath River, Big Bar 121 Comment
  CAS-BOT-BC269862  Eriogonum nudum var. pubiflorum Doris K. Kildale 1926-6-9 2144 Humboldt Horse Mountain 1219 Comment
  HSC54660  Eriogonum umbellatum Overton, Butler 1979-7-25 9883 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  HSC54745  Eriogonum umbellatum var. stellatum G. L. Clifton, Griswold 1979-7-26 10224 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  HSC55177  Eriogonum umbellatum var. stellatum Gilbert Muth 1979-8-1 12182 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  HSC55182  Eriogonum umbellatum var. stellatum G. L. Clifton, Griswold 1979-8-2 12202 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC98645  Eriophorum crinigerum Cara Witte 2007-5-24 115 Humboldt Horse Mountain Botanical Area. Along Forest Service Rd. 6N38. Near Horse Mountain Mine. 1284 Comment
  RSA249330  Eriophorum crinigerum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5566 Humboldt Westward lower slopes of Black Lassic near Trinity County line 1585 Comment
  JEPS34590  Eriophyllum lanatum var. achilleoides W. L. Jepson 1921-8-11 9417 Humboldt Big Lagoon Comment
  CAS-BOT-BC301012  Eriophyllum lanatum var. achilleoides Doris K. Kildale 1925-6-28 913 Humboldt Fleener Creek Comment
  SEINET11850725  Eriophyllum lanatum var. achilleoides J. P. Tracy 1950-1 18790 Humboldt at Jenk's Ranch, 7 mi N of Harris Comment
  UCSB6527  Eriophyllum lanatum var. integrifolium Keator, Glenn 1958-6-27 Humboldt In the vicinity of Ettersburg Comment
  HSC78919  Eriophyllum lanatum var. lanceolatum T. Jimerson, D. K. Imper 1982-5-17 1438 Humboldt Near Ashfield Ridge. 822 Comment
  HSC26295  Erodium moschatum T. O. Osborne 1970-9-16 40 Humboldt Blank Rock, 1/4 mi. W Trinidad Head Comment
  HSC102600  Erysimum capitatum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1587 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  UC492245  Erysimum capitatum Joseph P. Tracy 1932-7-18 10706 Humboldt head Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  HSC47486  Erysimum menziesii Sheila Logan 1978-4-7 4 Humboldt Samoa sand dunes, 1/4 mi. N of Coast Guard Station. Comment
  HSC6782  Erysimum menziesii J. W. Johnson 1962-3-9 1183 Humboldt Samoa Peninsula, on ridges as dune end of trail through Hunt Farm. Comment
  HSC6789  Erysimum menziesii J. W. Johnson 1962-4-1 1414 Humboldt Samoa Peninsula, in a hollow behind the foredunes, near Dune 5, Christenson Farm. Comment
  HSC58338  Erysimum perenne Walter Overton, Marvin Butler 1979-8-2 12648 Humboldt Near Grogan Hole, close to the town of Hoopa 1554 Comment
  SEINET13694469 Image available Erythranthe alsinoides Joseph P. Tracy 1923-1 6258 Humboldt Kneeland prairie 762 Comment
  SEINET13693817 Image available Erythranthe dentata Noel H. Holmgren, Liew Fah Seong 1969-1 3613 Humboldt Prairie Creek Redwoods, in forest above coast near Del Norte County line Comment
  SD92948  Erythranthe grandis W. Bertsch 1953-7-30 228 Humboldt Highway 100 near Arcata Comment
  HSC100889  Erythronium Carl C. Marshall Apr 1887 357 Humboldt Near Lupton's Redwood. Comment
  UC1197647  Erythronium californicum Joseph P. Tracy 1941-4-8 16848 Humboldt serpentine formation along Trinity Hwy Willow Creek Canyon 609 Comment
  UC666965  Erythronium grandiflorum Joseph P. Tracy 1933-7-16 12774 Humboldt openings in forest near McKay Camp; South Fork Mountain 1676 Comment
  RSA46693  Erythronium grandiflorum subsp. grandiflorum Doris K. Kildale 1938-6-5 15392 Humboldt Horse Mountain Comment
  JEPS61877  Erythronium revolutum Ethel Tracy 1907-1 Humboldt Kneeland Prairie Comment
  POM169641  Erythronium revolutum H. P. Chandler 1901-06 1279 Humboldt Hupa Indian Reservation Comment
  HSC104354  Erythronium revolutum James Regan, Humboldt Redwood Co., LLC 2007-4-30 16 Humboldt Larabee Creek area, east of Redcrest 805 Comment
  UC183669  Eschscholzia californica Joseph P. Tracy 1912-7-26 3853 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC69578  Eucalyptus globulus R. Kalal 1980-6-1 7 Humboldt City of Arcata, along F street between 12th and 13th streets. 37 Comment
  HSC58763  Eucephalus ledophyllus Terry Griswold 1979-7-26 10161 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  CAS-BOT-BC310496  Euchiton sphaericus John Thomas Howell 1936-8-29 12888 Humboldt Eel River 16 miles n. of Garberville Comment
  POM292452  Euchiton sphaericus Lyman Benson 1929-7-16 1831 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  HSC100665  Eunanus douglasii Carl C. Marshall Apr 1887 377 Humboldt Hoopa Valley, dry roadsides. Comment
  UC18050  Euonymus occidentalis var. occidentalis C. C. Marshall 1888-1 Humboldt Mad R. Mts. Comment
  CDA28953  Euphorbia virgata T. Chapple 2009-6-1 s.n. Humboldt Vicinity of Orleans, found on Klamath River access road. 0 Comment
  UC1173675  Eurybia radulina Joseph P. Tracy 1939-8-5 16380 Humboldt Dinsmores, Van Duzen River, opposite Buck Mt. Van Duzen River 762 Comment
  UC581784  Eurybia radulina Joseph P. Tracy 1929-10-6 8677 Humboldt Kneeland Prairie, on Butler Valley Road Kneeland Prairie 609 Comment
  CAS-BOT-BC310683  Euthamia occidentalis S. K. Harris; Charlotte Wilder 1938-9-7 s.n. Humboldt Bars of the Van Dusen River, above Blue Slide Comment
  UC525633  Festuca californica Joseph P. Tracy 1926-5-30 7518 Humboldt Willow Creek Canyon Northern Coast Ranges 609 Comment
  HSC78917  Festuca idahoensis T. Jimerson, D. K. Imper 1982-5-17 1436 Humboldt Near Ashfield Ridge. 822 Comment
  HSC9871  Festuca idahoensis R. D. Rogers 1964-5-15 17 Humboldt Rousseau Ranch Comment
  RSA10135  Festuca idahoensis Joseph P. Tracy 1933-7-25 12890 Humboldt Grouse Mountain, North Coast Ranges 1524 Comment
  HSC72634  Festuca occidentalis J. P. Smith 1977-7-3 9249 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  HSC90039  Festuca occidentalis Andrew Enberg, Brad Penkala, Dan Scofield 1990-4-28 66 Humboldt Hwy. 299, 4 mi. W of Burnt Ranch 259 Comment
  HSC99020  Festuca occidentalis Cara Witte 2007-6-7 227 Humboldt Along National Forest 1 on Kinsey Ridge. 1 mile south of intersection with 4N06. 1263 Comment
  POM126170  Festuca occidentalis Joseph P. Tracy 1900-5-22 796 Humboldt Immediate vicinity of Eureka. 0 Comment
  UC1103723  Festuca occidentalis Joseph P. Tracy 1937-7-25 15543 Humboldt head of Little Hors-Linto Creek Trinity Summit, Little Hors-Linto Cree 1371 Comment
  UC38531  Festuca occidentalis Harley P. Chandler May 1901 1186 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UCD66182  Festuca occidentalis Victor Duran 1933-5-11 3410 Humboldt Van Duzen River, near Bridgeville. Comment
  CAS-BOT-BC278962  Festuca rubra David D. Keck 1944-7-11 5490 Humboldt 3 mi. N.E. of Capetown 152 Comment
  HSC93739  Festuca rubra Gordon Leppig 1998-6-1 871 Humboldt Horse Mtn. Buck Flat, Titlow Hill Rd., at Ammon Ridge Rd. 1524 Comment
  UC180345  Festuca rubra Joseph P. Tracy 1913-6-13 4097 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC33690  Festuca rubra Joseph P. Tracy 1899-7-30 6180 Humboldt Ferndale Comment
  UC33725  Festuca rubra Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5685 Humboldt Hoopa Mt. Comment
  UC492174  Fragaria Joseph P. Tracy 1932-7-16 10630 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC89431  Fragaria X ananassa P. A. Daly 1984-5-8 8 Humboldt Trinidad Head. 61 Comment
  UCD113170  Fragaria ananassa subsp. cuneifolia Linda M. Barker 1976-6-14 1590 Humboldt 3 miles west of Arcata. 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
  POM275019  Fragaria chiloensis Lyman D. Benson 1928-7-10 450 Humboldt Clam Beach, Trinidad. 9 Comment
  HSC18636  Fragaria vesca S. S. Stutz 1963-3-24 14 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  HSC49077  Fragaria vesca J. O. Sawyer 1977-4-23 2845 Humboldt Dagsaw Spring on road to Onion Mtn. Comment
  HSC72700  Fragaria vesca Gail Newton 1980-6-24 570 Humboldt Near Ladder Rock 1570 Comment
  HSC45402  Fragaria vesca Thomas W. Nelson, Jane P. Nelson 1977-6-19 3510 Humboldt Alder Springs 1524 Comment
  HSC18399  Frangula californica Dale Thornburg 1968-11-10 Humboldt Hogback Ridge NE of Ammon Guard Station Comment
  CAS-BOT-BC52730  Frangula californica subsp. californica Doris K. Kildale 1928-10-7 6754 Humboldt Trinity River at mouth of Willow Creek Comment
  SBBG26928  Frangula californica subsp. californica C. B. Wolf 1934-6-30 5842 Humboldt back of Shelter Cove 60 Comment
  CAS-BOT-BC53401  Frangula californica subsp. occidentalis Doris K. Kildale 1928-10-7 6748 Humboldt Willow Creek Canyon, 7 mi. west of Trinity Comment
  CAS-BOT-BC60000  Frangula purshiana C. B. Wolf 1931-8-30 2373 Humboldt E. side of Eureka on P. St., one block n. of Henderson St. 30 Comment
  SBBG4630  Frangula purshiana subsp. purshiana M. J. Cody 1938-7-10 Humboldt near Trinidad Comment
  CAS-BOT-BC136029  Fritillaria affinis Doris K. Kildale 1928-5-19 5225 Humboldt Chalk Mountain Comment
  CAS-BOT-BC136031  Fritillaria affinis Doris K. Kildale 1925-4-1 s.n. Humboldt Hungry Hollow near Korbel Comment
  POM169380  Fritillaria affinis Joseph P. Tracy 1901-4-26 1045 Humboldt Immediate vicinity of Eureka; Humboldt Hill 0 Comment
  CHSC80006  Fumaria officinalis Gordon Leppig; Sylvia Leppig 2000-12-7 1523 Humboldt Arcata, 7th and I Street just west of Post Office, UTM zone 10, 4525N, 408E. 6 Comment
  HSC72984  Galium ambiguum subsp. siskiyouense M. A. Baker 1980-7-11 2773 Humboldt Near Red Mtn. 1341 Comment
  HSC70928  Galium aparine R. York 1980-5-18 579 Humboldt Near Black Mtn 792 Comment
  HSC57438  Galium bifolium G. L. Clifton, Griswold 1979-7-26 10237 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2024 Comment
  UC169073  Galium bolanderi Harley P. Chandler 1901-6-4 1326 Humboldt Campbell Creek North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC602510  Galium bolanderi Joseph P. Tracy 1935-7-29 14339 Humboldt exposed places near Ranger Station; Trinity Summit 1828 Comment
  HSC98665  Galium bolanderi Cara Witte 2007-8-9 631 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately .2 miles from intersection with Forest Service Road 4N32B. 1413 Comment
  UC602527  Galium californicum subsp. californicum Joseph P. Tracy 1936-6-27 15000 Humboldt Miranda South Fork Eel River 121 Comment
  JEPS52903  Galium californicum subsp. californicum Lauramay T. Dempster and G. L. Stebbins 1963-7-9 3848 Humboldt 2.1 mi w Bridgeville (on road to Eureka, along river, steep s-facing slope); Van Duzen River Comment
  HSC45640  Galium muricatum Diane L. Reed 1978-5-7 57 Humboldt Fourmile Creek, 4 mi. up Friday Ridge Rd. from Hwy. 299 Comment
  JEPS6571  Galium parisiense Rimo Bacigalupi with G. T. Robbins 1954-6-28 4654 Humboldt 7.4 mi n Hoopa (along hwy, high above Trinity River, 4.6 mi n of Weitchpec); Six Rivers National Forest Comment
  UC416654  Galium parisiense Harley P. Chandler June, 1901 1305 Humboldt Hupa Valley North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC602511  Galium porrigens Joseph P. Tracy 1926-4-11 7406 B Humboldt Bridgeville 198 Comment
  SD70521  Galium porrigens var. porrigens Lauramay T. Dempster, G. L. Stebbins 1963-7-8 3843 Humboldt Willow Creek at Hwy. crossing north of Willow Creek town 459 Comment
  HSC100643  Galium trifidum Carl C. Marshall Aug 1886 254 Humboldt Damp woods. Comment
  HSC53836  Galium triflorum Griswold, Butler 1979-7-10 6286 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC61962  Galium triflorum Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan. Comment
  UC169075  Galium triflorum Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5470 Humboldt near Elk Prairie (Fruitland); North Coast Ranges Comment
  HSC91914  Gamochaeta ustulata E. Mackey 1987-7-19 Humboldt Patrick's Point State Park Comment
  UC1199344  Gamochaeta ustulata Joseph P. Tracy 1934-6-19 13232 Humboldt Carlotta 60 Comment
  HSC56945  Garrya buxifolia Overton, Butler 1979-7-23 9435 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC8400  Garrya fremontii D. E. Anderson 1965-4-24 3537 Humboldt Along Titlow Hill Rd. 2 mi. from its junction with Hwy. 299 Comment
  JEPS66732  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC668298  Garrya fremontii Joseph P. Tracy 1933-3-5 10918 Humboldt Alton North Coast Ranges (along Van Duzen River) 30 Comment
  UCSB72516  Garrya fremontii Moseley, Maynard 1952-8-21 Humboldt Along western valley wall of Willow Creek, mostly within Hoppe Indian Reservation, upstream from Willow Village Comment
  CAS-BOT-BC56297  Gaultheria ovatifolia R. Bacigalupi; L. Constance; J. P. Tracy; R. Moran; R. L. Rodriguez; S. Carlquist 1951-6-14 3413 Humboldt Meadow at Snow Camp, ridge between Mad River and Redwood Creek, Bald Mountain 1432 Comment
  JEPS79891  Gaultheria ovatifolia Joseph P. Tracy 1939-7-9 16320 Humboldt Bald Mountain, at Lake Prairie Bald Mountain; , Lake Prairie 1066 Comment
  SEINET2031089 Image available Gaultheria ovatifolia Joseph P. Tracy 1939-1 16320 Humboldt Bald Mountain, at Lake Prairie 1070 Comment
  CHSC19736  Gaultheria shallon Gary J. Stebbins 1970-2-2 4 Humboldt Along U.S. 101 across from Patricks Point State Park. 38 Comment
  HSC98970  Gaultheria shallon Cara Witte 2008-8-5 993 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles E of intersection with National Forest 1. 1346 Comment
  RSA2931  Gaultheria shallon C. B. Wolf 1931-8-29 1242 Humboldt Near summit of Orick Hill on road to Weitchpec. 305 Comment
  SBBG25595  Gaultheria shallon E. R. Blakley 1966-8-17 6793 Humboldt Little Crk, Prairie Crk St Park, ca. 10 mi N of Orick 60 Comment
  JEPS66611  Gaultheria shallon W. L. Jepson 1902-6-29 1952 Humboldt Redwood Creek at Berry Ranch, (Expedition) from Ukiah to the Hupa Indian Reservation Redwood Creek; , Berry Ranch Comment
  HSC76623  Gayophytum diffusum Denis Kearns 1981-7-22 317 Humboldt Near Whiteys Peak. 1487 Comment
  HSC102240  Gentiana plurisetosa Sydney Carothers 2011-9-17 Humboldt Bret Hole; 1.1 km SW of Trinity Summit 1579 Comment
  UCD23455  Gentiana sceptrum K. Niles 1950-9-20 s.n. Humboldt Big Lagoon. Comment
  RSA46721  Gentiana sceptrum Doris K. Kildale 1937-8-26 15344 Humboldt Christmas Prairie Comment
  HSC8642  Geranium bicknellii D. E. Anderson 1963-5-25 2497 Humboldt 4 mi. E of Petrolia. Comment
  RSA0029455  Geranium oreganum Volney Rattan 1878-06 s.n. Humboldt North of Redwood Creek. Comment
  HSC89508  Geranium retrorsum M. Roantree 1985-6-11 93 Humboldt E side of Trinidad Head Comment
  HSC24383  Gilia capitata J. O. Sawyer 1970-6-24 2212 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  UC907951  Gilia capitata subsp. capitata Joseph P. Tracy 1935-6-23 13995 Humboldt French Camp Ridge 1066 Comment
  UC907950  Gilia capitata subsp. capitata Joseph P. Tracy 1935-7-29 14345 Humboldt brushy ridge 1 mi ne Ranger Station (Trinity Summit); Trinity Summit 1676 Comment
  CAS-BOT-BC226151  Gilia capitata subsp. pacifica Doris K. Kildale 1927-5-15 3295 Humboldt Mattole River Valley Comment
  RSA63402  Gilia capitata subsp. pacifica C. B. Wolf 1939-7-8 9519 Humboldt Devil's Gate, south of Cape Mendocino. 8 Comment
  UC907902  Gilia capitata subsp. pacifica Joseph P. Tracy 1948-9-25 18225 Humboldt Eureka Comment
  HSC100593  Gilia inconspicua Carl C. Marshall 1885-5-11 36 Humboldt Peninsula near Fairhaven. Comment
  HSC16987  Gilia millefoliata Norman H. Moe 1962-5-17 Humboldt Lanphere's Place Comment
  HSC16989  Gilia millefoliata J. R. Woodside 1963-5-19 3 Humboldt 1 1/4 mi. N of Fairhaven Comment
  HSC59484  Gilia millefoliata M. A. Ericksen 1979-4-29 241 Humboldt 0.4 mi. N of Coast Guard Station, Samoa Peninsula. Comment
  HSC95545  Gilia millefoliata Andrea Pickart 2002-5-13 101 Humboldt Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 0 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
  UCD117850  Gilia millefoliata Linda M. Barker 1976-6-1 1549 Humboldt 3 miles west of Arcata. Comment
  RSA21037  Glehnia littoralis subsp. leiocarpa C. B. Wolf 1937-6-18 8906 Humboldt Centerville Beach. 3 Comment
  HSC99484  Glyceria elata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 143 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
  UC526906  Glyceria elata Joseph P. Tracy 1925-7-5 7170 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  POM126119  Glyceria fluitans Joseph P. Tracy 1924-8-3 6749 Humboldt Stone Lagoon Comment
  RSA91960  Glyceria fluitans Joseph P. Tracy 1933-7-20 12801 Humboldt Arcata bottom 15 Comment
  UC1103750  Glyceria striata Joseph P. Tracy 1934-7-18 13430 Humboldt Grouse Mountain; North Coast Ranges 1524 Comment
  UC552669  Glyceria striata Joseph P. Tracy 1935-7-25 14251 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  CAS-BOT-BC303846  Gnaphalium Alice Eastwood 1923-8-14 12305 Humboldt Samoa Comment
  CAS-BOT-BC302536  Gnaphalium palustre Henry M. Pollard 1956-10-9 s.n. Humboldt Near Fig Tree Riffle at Woodson Mine, Klamath River, Orleans Comment
  HSC4666  Gnaphalium palustre H. E. Parks, S. T. Parks Jul 1937 24026 Humboldt Trinidad; Spruce Cove Comment
  HSC56965  Gnaphalium palustre Overton, Butler 1979-7-23 9488 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  SD39800  Gnaphalium purpureum Edith A. Purer 1932-7-30 4676 Humboldt South of Orick Comment
  UCR122355  Gnaphalium stramineum George K. Helmkamp, E. A. Helmkamp 2001-7-8 7010 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  RSA638984  Gnaphalium stramineum Percy C. Everett 1965-8-6 35171 Humboldt Samoa Dunes. 3 Comment
  HSC28140  Goodyera oblongifolia J. D. Ackerman 1973-8-23 117 Humboldt 2 mi. N of Manila Comment
  UC1196372  Goodyera oblongifolia Joseph P. Tracy 1932-7-17 10660 Humboldt near Corral Prairie (Trinity Summit); Trinity Summit 1584 Comment
  UC1326261  Goodyera oblongifolia Milo S. Baker 1947-8-10 11906 Humboldt along trail to Trinity Summit from end of Forest Road from Hoopa Trinity Summit 1432 Comment
  JEPS30544  Grindelia hirsutula Peter H. Raven, R. Snow 1958-7-21 13659 Humboldt Cape Mendocino Cape Mendocino (on exposed coastal bluffs) Comment
  SBBG62707  Grindelia hirsutula L. Rowntree 1931-7-26 Humboldt Carlotta Comment
  UC1239635  Hackelia californica Joseph P. Tracy 1936-8-8 15126 Humboldt on Ridge 2 mi e of Groves Prairie; Trinity Summit 1524 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
  UC303042  Hastingsia alba Joseph P. Tracy 1926-6-20 7633 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1463 Comment
  CAS-BOT-BC508213  Hastingsia alba Joseph P. Tracy 1926-6-20 7633 Humboldt Wet or seepy ground, serpentine formation, Horse Mountain 1463 Comment
  POM161485  Hazardia whitneyi var. discoidea Joseph P. Tracy 1919-9-23 5287 Humboldt Trinity Summit 1829 Comment
  UC630631  Hedera helix Joseph P. Tracy 1939-10-15 16519 Humboldt Van Duzen River Blue Slide; , Blue Slide 91 Comment
  UC630633  Hedera helix Joseph P. Tracy 1939-1-22 16185 Humboldt on Van Duzen R. Blue Slide 91 Comment
  CAS-BOT-BC306612  Helenium bigelovii L. B. Kildale 1930-8-10 10532 Humboldt Snow Camp, head of Redwood Creek Comment
  CAS-BOT-BC306867  Helenium bolanderi L. R. Abrams 1916-7-18 6078 Humboldt Arcata to Trinidad Comment
  OBI16344  Helenium bolanderi Carl B. Wolf 1937-8-10 9089 Humboldt Big Lagoon, Bog at State Park 6 Comment
  SD42503  Helenium bolanderi Carl B. Wolf 1937-8-10 9089 Humboldt Big Lagoon, bog at state park. Comment
  CAS-BOT-BC309413  Helenium puberulum E. R. Johnson 1929-8-1 1431 Humboldt Along the Redwood Highway, south of Eureka 30 Comment
  SEINET4170660 Image available Hemicarpha aristulata Unknown 1931-9-7 9650 B Humboldt Trinity river Valley, at Willow Creek 152 Comment
  CAS-BOT-BC310073  Hemizonella minima R. K. Gierisch; D. H. Esplin 1969-7-1 3535 Humboldt Six Rivers National Forest. Grouse Mtn. Comment
  POM126139  Hemizonia congesta Joseph P. Tracy 1923-6-20 6338 Humboldt Near Garberville (4 miles N of it.) 122 Comment
  CAS-BOT-BC306080  Hemizonia congesta subsp. clevelandii H. E. Parks; J. P. Tracy 1930-5-25 0880 Humboldt Near Bridgeville Comment
  CAS-BOT-BC309987  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1932-8-21 10364 Humboldt Northern Coast Ranges. Three Cabins; on lower western foothills of Chaparral Mountain 457 Comment
  CAS-BOT-BC309997  Hemizonia congesta subsp. tracyi L. R. Abrams 1916-7-11 6030 Humboldt Mouth of Grizzly Creek on Van Duzen River Comment
  POM228359  Hemizonia tracyi S. K. Harris 1936-6-20 s.n. Humboldt Above Van Duzen River about 1 mile west of Bridgeville Comment
  JEPS14231  Heracleum lanatum Joseph P. Tracy 1934-7-27 13491 Humboldt near mouth Mad R. 15 Comment
  UC180205  Heracleum lanatum Joseph P. Tracy 1914-6-14 4511 Humboldt Carlotta North Coast Ranges, Carlotta 60 Comment
  HSC60360  Heracleum maximum Clark L. Miller 1979-5-13 1120 Humboldt N of Trinidad along Patricks Point Dr. Comment
  CAS-BOT-BC388492  Herniaria hirsuta var. cinerea Henry M. Pollard 1946-8-13 s.n. Humboldt Klamath River, near Orleans Comment
  HSC98193  Hesperocyparis macrocarpa Will Ferrand 2002-4-27 44 Humboldt HSU Campus, 100ft W of library 24 Comment
  BLMAR190  Heteromeles arbutifolia Donald Hazlett 1994-6-7 190 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC143656  Heteromeles arbutifolia Doris K. Kildale 1926-6-13 2163 Humboldt Briceland Bridge, 1/2 mile west of Garberville 114 Comment
  HSC5313  Heterotheca oregona D. E. Anderson 1963-9-21 2837 Humboldt 1/2 mi. E of Willow Creek Comment
  CAS-BOT-BC311029  Heterotheca oregona var. compacta Joseph P. Tracy 1900-9-10 950 Humboldt Northern Coast Region. Near Hydesville 60 Comment
  UC1069597  Hieracium albiflorum H. L. Person 1932-7-16 Humboldt highway n Trinidat; Rock Point Quad. Comment
  UC165197  Hieracium nudicaule Joseph P. Tracy 1908-6 2749 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Buck Mountain 762 Comment
  UC1199468  Hieracium scouleri Joseph P. Tracy 1937-7-29 15592 Humboldt w slope near the top South Fork Mountian (at Hyampom Trail); South Fork Mountain, Hyampom Trail 1676 Comment
  UC1103738  Hierochloe occidentalis Joseph P. Tracy 1942-5-16 17348 Humboldt Garberville 152 Comment
  HSC63084  Hippuris vulgaris David Wheeler 1979-4-20 72 Humboldt Clam Beach Ponds, N pond, 0.25 mi. S of Crannel Rd. between the frontage road and Hwy. 101 Comment
  HSC59059  Hippuris vulgaris Thomas Wood 1979-5-17 186 Humboldt Clam Beach pond, E of Clam Beach-Little River Beach, along Hwy. 101 3 Comment
  HSC6593  Hirschfeldia incana P. W. Shields 1955-9-29 Humboldt 0.5 mi. S of Fernbridge Comment
  CAS-BOT-BC280737  Holcus lanatus M. S. Jussel 1931-5-2 125 Humboldt 6 miles from Garberville Comment
  HSC10139  Holcus lanatus W. F. Nickel 1965-4-28 Humboldt On Humboldt State Campus behind biological science building, near baseball field. Comment
  HSC27024  Holcus lanatus Brad W. Klipfel 1973-8-17 273 Humboldt Big Lagoon Park, at the Sphagnum bog. Comment
  HSC59438  Holcus lanatus Kenneth Clark 1979-4-21 144 Humboldt Little River flood plain (alluvium), 4.5 miles from McKinleyville, 200 yards E of Hwy. 299 Comment
  UCD84886  Holcus mollis Joseph P. Tracy 1948-7-31 18079 Humboldt Eureka. 30 Comment
  CAS-BOT-BC149899  Holodiscus discolor Doris K. Kildale 1925-6-21 741 Humboldt Briceland Bridge 1/2 miles W. of Garberville 114 Comment
  CAS-BOT-BC149908  Holodiscus discolor Clarence R. Quick 1959-7-24 59 -26 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  HSC97986  Holodiscus discolor Cara Witte 2007-7-8 429 Humboldt Board Camp Mountain. Pack trail 4E26. 1463 Comment
  OBI33238  Holodiscus discolor David J. Keil 1983-7-1 17262 Humboldt Ca. 8 mi W of jctn US 101 along Bull Creek Flats rd Comment
  UC154212  Holodiscus discolor J. P. Tracy 1909-7-3 3002 Humboldt immediate vicinity of Eureka (near Ocean View Cemetery) 0 Comment
  UC501506  Holodiscus discolor Frank W. Peirson 1926-7-13 8655 Humboldt vicinity of Blue Lake (bottom lands of Mad River); bottom lands of Mad River Comment
  HSC70402  Hordeum marinum subsp. gussoneanum M. A. Baker 1980-6-7 1843 Humboldt Near Ammon Creek 732 Comment
  UC38634  Hordeum marinum subsp. gussoneanum Harley P. Chandler 1901-6-1 1431 B Humboldt Klamath River North Coast Ranges, Klamath River 335 Comment
  HSC103010  Hordeum murinum subsp. murinum J. P. Smith 2014-5-20 13852 Humboldt Samoa Peninsula 6 Comment
  SEINET11911570  Horkelia sericata H. P. Chandler 1901-1 1543 Humboldt Klamath River 427 Comment
  UC1198719  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1908-7-24 2916 Humboldt Buck Mountain Northern Coast Ranges (nw slope) 1219 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
  HSC96156  Hosackia crassifolia var. crassifolia Thomas W. Nelson, Jane P. Nelson 1987-6-11 8531 Humboldt Along F.S. Rd. 13N01, 18 mi. from junction with State Route 96 1067 Comment
  HSC69766  Hosackia oblongifolia var. oblongifolia Thomas W. Nelson, Jane P. Nelson 1977-9-3 3732 Humboldt Along old logging rd. just E of Pine Mtn. 1433 Comment
  UC1762196  Hydrophyllum fendleri var. albifrons Joseph P. Tracy 1932-7-15 10602 Humboldt Trinity Summit, ridges E of Corral Prairie 1828 Comment
  HSC13555  Hydrophyllum occidentale Elrid H. Spinas 1948-6-16 52 Humboldt Horse Mtn. Comment
  UC1198416  Hypericum anagalloides Joseph P. Tracy 1933-8-27 13003 Humboldt Harris 762 Comment
  UC175706  Hypericum anagalloides Joseph P. Tracy 1912-7-14 3747 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  CHSC19478  Hypericum perforatum Thomas W. Nelson 1970-10-18 251 Humboldt Beside highway 101 ca. 100 yds. N. of Mad River bridge. Comment
  UC909470  Hypericum perforatum J. H. Thomas 1949-6-12 899 Humboldt ca. 1/2 mi. n. Orleans (near Klamath R.) Comment
  HSC13845  Hypericum perforatum J. R. Lippincott 1967-7-16 6 Humboldt Near N Fork Mad River bridge 152 Comment
  HSC39792  Hypochaeris glabra Peter Sorensen 1976-7-14 Humboldt N Spit Comment
  HSC40958  Hypochaeris radicata Linda M. Barker 1976-9-3 1692 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC40966  Ilex aquifolium Linda M. Barker 1976-6-14 1594 Humboldt 3 mi. W of Arcata Comment
  HSC56224  Ipomopsis aggregata G. L. Clifton, Griswold 1979-8-2 12260 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC150134  Ipomopsis aggregata P. E. Goddard 1906-6 683 Humboldt Sassick Park Comment
  POM265999  Iris Lincoln Constance 1942-5-12 2893 Humboldt Klamath River 2 miles north of Orleans. 122 Comment
  UC2043019  Iris chrysophylla Barbara Ertter with Thomas J. Delendick 1987-5-16 6940 Humboldt Ca. 3 mi E of Berry Summit on Highway 299, ca. 20 air miles E of Arcata on S side of road above Willow Creek. Comment
  HSC13865  Iris douglasiana J. J. Wagoner 1965-4-3 9 Humboldt 16 mi. N of Trinidad, W of Hwy. 101 in Dry Lagoon State Beach Park 24 Comment
  HSC33061  Iris douglasiana Thomas W. Nelson 1974-5-7 1240 Humboldt Beside the old Kneeland Rd. Comment
  HSC91876  Iris douglasiana E. Mackey 1986-5-13 Humboldt Patrick's Point State Park near Ceremonial Rock Comment
  HSC13863  Iris douglasiana W. R. Brigham 1962-5-20 19 Humboldt End of old Hwy. 101, N of Big Lagoon Rd. Comment
  JEPS17356  Iris douglasiana W. L. Jepson 1902-6 1909 Humboldt Idolwild; South Fork of Eel River Comment
  RSA135819  Iris douglasiana E. K. Balls 1957-5-25 22606 Humboldt 0.5 miles west of Bridgeville, along Van Duzen River, State Highway 36 122 Comment
  RSA136681  Iris douglasiana Lee W. Lenz, E. K. Balls 1951-5-8 16508 Humboldt 14.7 miles north of Trinidad, Highway 101 6 Comment
  UC14921  Iris douglasiana Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5441 Humboldt Hubbard's Station to Elk Prairie; North Coast Ranges Comment
  BLMAR624  Iris purdyi Jennifer Wheeler 2011-6-1 624 Humboldt Lacks Creek, Bair rd near pickle springs 609 Comment
  HSC36790  Iris purdyi Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-7-20 2052 Humboldt Beside FS Rd. 2S08 to Pine Mtn. Comment
  RSA135934  Iris purdyi Lee W. Lenz, E. K. Balls 1952-5-12 17195 Humboldt 6.3 miles east of Bridgeville along Highway 36 Comment
  UC1005679  Iris purdyi Frank W. Gould 1939-5-30 832 Humboldt about 25 mi due e Eureka (Horse Mountain, along road about halfway-up the mountain road); Horse Mountain 1000 Comment
  HSC67520  Iris tenuissima J. P. Smith, J. O. Sawyer 1973-5-12 6698 Humboldt 9.6 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC70745  Iris tenuissima R. York 1980-5-17 519 Humboldt Near Le Perron Peak 792 Comment
  HSC70763  Iris tenuissima R. York 1980-5-17 538 Humboldt Near Le Perron Peak 1066 Comment
  UC1046540  Iris tenuissima R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3414 Humboldt ridge between Mad River and Redwood Creek (about Snow Camp, Bald Mountain); Bald Mountain, Snow Camp 1432 Comment
  RSA273404  Isatis tinctoria J. P. Smith, J. O. Sawyer 1974-6-2 7649 Humboldt Below Berry Summit on old State Route 299. 762 Comment
  UC667942  Isoetes bolanderi Joseph P. Tracy 1937-8-12 15651 Humboldt Snow Camp 1402 Comment
  JEPS60150  Isoetes nuttallii Joseph P. Tracy 1938-7-7 16034 Humboldt at Cold Springs Grouse Mt; Grouse Mt., Cold Springs 1432 Comment
  JEPS93173  Isolepis cernua Margriet Wetherwax and Kevin Downing 1993-8-9 2454 Humboldt s side of slough just past Pigeon Point (e side of road, near Bayside Rd and Myrtle, e side of bay, just n of Eureka); Humboldt Bay, Eureka Slough 5 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
  HSC38446  Jaumea carnosa J. P. Smith 1976-7-3 8935 Humboldt Manila, Samoa Peninsula Comment
  UC637154  Jaumea carnosa Edward Lee 1934-8-17 1149 Humboldt 35 mi n Eureka (e shore of Lagoon); Big Lagoon 3 Comment
  POM254124  Jaumea carnosa C. C. Harris, S. K. Harris 1939-8-26 994 Humboldt South shore of Humboldt Bay. Comment
  POM208990  Juncus bufonius Lincoln Constance 1934-6-12 862 Humboldt S Fork of Eel River, N end of Dyerville bridge, Humboldt Redwood Park. 46 Comment
  HSC98006  Juncus covillei Cara Witte 2007-7-12 516 Humboldt Forest Service Road 5N10. 2 miles east of intersection with National Forest 1. 1339 Comment
  JEPS63894  Juncus effusus subsp. pacificus W. L. Jepson 1932-7-26 16404 Humboldt Bull Creek 106 Comment
  HSC14019  Juncus ensifolius H. E. Parks, J. P. Tracy 1924-8-3 2400 Humboldt Big Lagoon Comment
  UC249745  Juncus ensifolius Joseph P. Tracy 1924-8-31 6849 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 91 Comment
  UC1103035  Juncus ensifolius Joseph P. Tracy 1921-10-16 5970 Humboldt near Willow Creek (mouth of South Fork Trinity); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1103055  Juncus ensifolius Joseph P. Tracy 1900-9-9 947 Humboldt near mouth of Yager Creek; Northern Coast Ranges 60 Comment
  HSC57093  Juncus exiguus Walter Overton, Marvin Butler 1979-7-24 9815 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC57986  Juncus exiguus G. L. Clifton, Terry Griswold 1979-7-31 11721 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  RSA246773  Juncus falcatus subsp. sitchensis Robert F. Thorne, Percy C. Everett 1965-8-7 35223 Humboldt Samoa Peninsula. 3 Comment
  HSC40877  Juncus hesperius Linda M. Barker 1976-6-1 1568 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC62860  Juncus hesperius J. M. DiTomaso 1979-5-16 1015 Humboldt Corner of LK Wood and 14th St., Arcata Comment
  HSC44561  Juncus mertensianus Brad Klipfel 1973-7-15 180 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  BLMAR429  Juncus patens Clara Sander 2003-8-5 429 Humboldt Humboldt County, Growing along Hwy101 between bayside cutoff and Samoa exit 8 Comment
  HSC85846  Juncus phaeocephalus var. phaeocephalus L. P. Janeway 1983-9-24 698 Humboldt S side of Big Lagoon at county camp ground, 10-30 ft. from water line 3 Comment
  RSA12427  Juncus saximontanus Carl B. Wolf 1934-7-2 5867 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  HSC57962  Juncus tenuis G. L. Clifton, Terry Griswold 1979-7-31 11667 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC56961  Juncus xiphioides Overton, Butler 1979-7-23 9475 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  CAS-BOT-BC81147  Juniperus occidentalis Copeland 1903-7-4 3545 Humboldt Klamatha Comment
  CAS-BOT-BC235882  Keckiella corymbosa Milo S. Baker 1927-8-15 2459 b Humboldt Bed of Eel R. at S. Fork Station Comment
  CAS-BOT-BC235892  Keckiella corymbosa Doris K. Kildale 1929-8-4 8779 Humboldt Mattole River at Union Mattole Comment
  JEPS15153  Keckiella corymbosa H. L. Person 1932-7-31 Humboldt Korbel Eureka Quad. (Mad River, Camp 16) Comment
  RSA0009768  Keckiella lemmonii Marcus E. Jones 1931-7-16 28828 Humboldt Junction, East of Arcata. Comment
  UC1409055  Kickxia elatine Robert F. Thorne and P. Everett 1965-8-8 35262 Humboldt n edge Eureka (e of Hwy 101) 4 Comment
  HSC62771  Kniphofia uvaria M. Dean Griswold Jr. 1979-5-29 74 Humboldt E side of Alliance Rd. Comment
  HSC58117  Kyhosia bolanderi G. L. Clifton, Griswold 1979-8-1 12079 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UC581803  Lagophylla ramosissima Joseph P. Tracy 1934-7-9 13354 Humboldt Dobbyn Creek 152 Comment
  CHSC79684  Lamiastrum galeobdolon Gordon Leppig; Kai Neander 2000-4-13 1292 Humboldt Arcata. 100 m south of trail 5 and 10 intersection. UTM zone 10, 4527N, 40E. 91 Comment
  UC1239674  Lamium purpureum Ralph Ferguson 1948-4-12 Humboldt Eureka; in district s of Harris Street 45 Comment
  CAS-BOT-BC337992  Lasthenia californica Joseph P. Tracy 1932-6-26 10265 Humboldt Valley of South Yager Creek 762 Comment
  UC1199124  Lasthenia californica subsp. californica Joseph P. Tracy 1932-6-19 10249 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 701 Comment
  JEPS10178  Lasthenia californica subsp. californica W. L. Jepson 1902-6-10 1885 Humboldt Ft. Seward Ranch Ridge 1219 Comment
  HSC79382  Lasthenia californica subsp. macrantha Kenneth Clark 1981-5-24 1394 Humboldt Abalone Pt. 15 Comment
  CAS-BOT-BC123327  Lathyrus biflorus T. W. Nelson; James L. Nelson 1980-6-10 5432 Humboldt Blocksburg Quadrangle. NE slope of Red Mountain. 1371 Comment
  JEPS98949  Lathyrus biflorus Kenneth W. Fuller 1998-7-2 Humboldt Red Mountain (type locality) Comment
  HSC34616  Lathyrus japonicus Chirs Busik, P. K. Sather 1974-5-9 Humboldt Clam Beach County Park at the mouth of Strawberry Creek. Comment
  JEPS55264  Lathyrus jepsonii var. californicus W. L. Jepson 1902-7-10 2010 Humboldt Martin's Ranch South Fork Trinity River Comment
  JEPS64857  Lathyrus lanszwertii var. lanszwertii Mrs. M. H. Manning Apr 1902 Humboldt near Hupa Comment
  JEPS55323  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1926-5-2 7432 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC1199083  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1922-4-30 6010 Humboldt near The South Fork; Trinity River Valley 182 Comment
  CAS-BOT-BC94773  Lathyrus latifolius R. C. Wenk; P. Hopkinson; M. Hammond; S. Spiegal 2008-6-6 833 Humboldt Humboldt Redwoods State Park. Look Prairie, 0.5 air miles N of Mattole Road, about 3 air miles W of Highway 101 243 Comment
  HSC97937  Lathyrus nevadensis subsp. nevadensis Cara Witte 2007-5-31 148 Humboldt Along National Forest 1. Approximately 1 mile south of 4E27. 1489 Comment
  HSC74333  Lathyrus nevadensis var. nevadensis Gail Newton 1980-6-16 151 Humboldt Near Monks Camp 1097 Comment
  HSC75457  Lathyrus nevadensis var. nevadensis J. O. Sawyer 1980-7-18 3584 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC495706  Lathyrus nevadensis var. nevadensis Joseph P. Tracy 1932-7-16 10641 Humboldt McKay Prairie Klamath Mountains, Trinity Summit 1524 Comment
  JEPS79917  Lathyrus polymorphus Joseph P. Tracy 1932-7-20 10735 Humboldt just w of Corral Prairie (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1524 Comment
  UC1199075  Lathyrus polyphyllus Joseph P. Tracy 1935-7-22 14126 Humboldt Klamath Mountains, Trinity Summit, near Corral Prairie. Comment
  RSA168909  Lathyrus polyphyllus Joseph P. Tracy 1951-6-16 19469 Humboldt Happy Camp Mountain. In Trinity Summit Range, 6 miles northeast of Hawkins Bar. On the Takilma-Happy Camp Road. 1280 Comment
  JEPS55310  Lathyrus sulphureus Lincoln Constance 1934-5-31 757 Humboldt from w boundary of Park to Grasshopper Pk. (Squaw Cr.) rd (Bull Creek flat, along Bull Creek, n side of creek); South Fork Eel River, Bull Creek Region Comment
  HSC14736  Lathyrus tingitanus N. D. Dennis 1965-5-10 63 Humboldt 2nd and T St., Eureka Comment
  JEPS55300  Lathyrus torreyi Lincoln Constance 1934-5-24 633 Humboldt e side Look Prairie (bordering lower Look Prairie); South Fork Eel River, Bull Creek Region 121 Comment
  CAS-BOT-BC326000  Layia carnosa Peter H. Raven 1963-5-15 18370 Humboldt Dunes above coast, Lanphere Ranch just W of Mad River Slough, near Arcata. Comment
  JEPS13617  Layia carnosa Joseph P. Tracy 1932-5-16 10106 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC1223217  Layia carnosa Joseph P. Tracy 1946-6-2 17555 Humboldt Fairhaven; Samoa Peninsula Comment
  BLMAR61  Layia carnosa Jennifer Anthony-Wheeler 1994-3-31 61 Humboldt King range, Matole beach South of campground 12 Comment
  UC581805  Layia gaillardioides Joseph P. Tracy 1936-6-9 14875 Humboldt Bear River Ridge 609 Comment
  CAS-BOT-BC274330  Leersia oryzoides Henry M. Pollard 1947-8-7 s.n. Humboldt Klamath River's edge nr. woods on placer mine, Orleans region Comment
  SEINET3374979 Image available Lemna minor Joseph P. Tracy 1932-8-21 10370 Humboldt Three Cabins Ranch; on E side of Mad River on W slope of Chaparral Mt. 457 Comment
  HSC59501  Lemna minor M. A. Ericksen 1979-5-29 308 Humboldt Northern-most of Clam Beach ponds Comment
  CAS-BOT-BC339129  Leontodon saxatilis subsp. saxatilis H. S. Reed 1941-7-26 s.n. Humboldt Near Trinidad Comment
  UC582428  Leontodon saxatilis subsp. saxatilis Joseph P. Tracy 1933-8-22 12982 Humboldt near Fields Landing (around Humboldt Bay); Northern Coast Region, around Humboldt Bay 6 Comment
  CAS-BOT-BC12701  Lepidium oblongum Volney Rattan 1879-1-1 s.n. Humboldt Unspecified. Comment
  HSC79379  Lepidium oxycarpum Kenneth Clark 1981-5-2 1362 Humboldt Point Delgada, Mario's Marina 15 Comment
  HSC5934  Lessingia nemaclada J. P. Tracy 1937-9-5 15681 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UCD134130  Leucanthemum vulgare H. E. Parks; S. T. Parks 1943-8-1 24257 Humboldt Spruce Cove, Trinidad. 60 Comment
  UC183667  Lewisia nevadensis Joseph P. Tracy 1913-6-17 4167 Humboldt near summit of Buck Mountain Northern Coast Ranges, Buck Mountain 1524 Comment
  UC526792  Leymus X vancouverensis Joseph P. Tracy 1930-7-21 8894 Humboldt s point of the Cape (near ocean shore); Cape Mendocino 3 Comment
  RSA259563  Leymus vancouverensis D. E. Anderson, J. P. Smith 1971-6-28 J- 1260 Humboldt 2.5 miles South of Blue lake along Mad River Comment
  HSC75877  Ligusticum apiifolium Bill Copeland 1980-7-2 575 Humboldt Near Snow Camp Mtn. 1311 Comment
  JEPS17505  Ligusticum apiifolium W. L. Jepson 1902-6-30 1959 Humboldt on Hupa Rd. near Redwook Creek Comment
  UC1197320  Ligusticum californicum Joseph P. Tracy 1937-8-12 15633 Humboldt Snow Camp 1402 Comment
  SEINET10779391  Ligusticum californicum Joseph P. Tracy 1937-8-12 Tracy 15633 Humboldt Snow Camp 1402 Comment
  UCD127580  Lilaeopsis occidentalis Malcolm A. Nobs; S. Galen Smith 1949-8-3 1166 Humboldt Eel River Valley, 1 mile south of Fields Landing. Comment
  HSC76432  Lilium bolanderi Teresa Prendusi 1981-7-9 233 Humboldt Near Cedar Camp 1256 Comment
  SBBG1025  Lilium columbianum H. and M. Dearing 1939-6-23 3698 Humboldt 5 mi N of Trinidad Comment
  HSC26820  Lilium columbianum Clifton Raymond Chesbrough 1973-6-19 98 Humboldt 0.5 mi. N of College Cove along coast Comment
  UC179932  Lilium columbianum Joseph P. Tracy 1914-9-7 4617 B Humboldt 10 mi e Korbel (near the Bald Mt. House); Northern Coast Ranges 914 Comment
  CAS-BOT-BC130641  Lilium kelloggii Albert M. Vollmer; Ira L. Wiggins 1940-7-4 6 Humboldt On Orick-Weitchpec road, 15 miles west of Weitchpec 944 Comment
  HSC15572  Lilium kelloggii S. V. Thompson 1967-7-23 9 Humboldt E of Freshwater Park Comment
  UC1198246  Lilium kelloggii Joseph P. Tracy 1949-7-4 18324 Humboldt near Butler Valley junction with Kneeland road (Kneeland Prairie); Kneeland Prairie 670 Comment
  UC666960  Lilium kelloggii Joseph P. Tracy Aug 1934 13643 1/2 Humboldt w edge Kneeland Prairie Comment
  CAS-BOT-BC130685  Lilium occidentale A. M. Vollmer; L. Beane 1953-7-1 118 Humboldt unspecified Comment
  HSC35754  Lilium washingtonianum subsp. purpurascens Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1998 Humboldt French Camp, Bald Hills. Comment
  HSC99500  Lilium washingtonianum var. purpurascens K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 160 Humboldt Near North Trinity Mtn, Government Trail, near Box Camp, Six Rivers National Forest. 1460 Comment
  UC164821  Limnanthes douglasii Joseph P. Tracy 1908-6-9 2648 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC45270  Limnanthes douglasii M. Alcasas 1978-6-3 118 Humboldt On Titlow Hill Rd., 1.3 mi. from Hwy. 299 1463 Comment
  RSA183582  Limnanthes douglasii subsp. douglasii G. Bos 1965-5-15 274 Humboldt Berry Summit near U.S. 299. 793 Comment
  HSC69869  Limnanthes douglasii subsp. nivea Thomas W. Nelson 1978-5-28 4098 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  UCR160588  Limnobium laevigatum Gordon Leppig, Tony LaBanca 2003-3-13 1823 Humboldt Alder Grove [Rd.] Pond, Arcata 9 Comment
Read comments
Jul 6 2015
  BLMAR427  Limonium californicum Clara Sander 2004-9-27 427 Humboldt South Spit, east side of road 4 Comment
  JEPS23912  Linanthus androsaceus Volney Rattan 1882-1 Humboldt Mouth of Mad River Comment
  UC702549  Linanthus androsaceus C. C. and S. K. Harris 1942-6-17 1272 Humboldt 1 mi n and 3 mi e Chalk 665 Comment
  UC1198567  Linanthus bicolor Joseph P. Tracy 1914-5-14 4435 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  UC908238  Linanthus ciliatus Joseph P. Tracy 12923 Humboldt s slope Grouse Mountain (towards Grouse Creek Basin); North Coast Ranges 1219 Comment
  RSA20849  Linum angustifolium Carl B. Wolf 1937-6-18 8889 Humboldt Table Bluff between Humboldt Bay and Eel River. 30 Comment
  UCSB30603  Linum bienne Edwards, David 1974-8-12 Humboldt North side of 7th. St., just W. of its overpass of U.S. 101, Arcata 18 Comment
  JEPS45743  Linum usitatissimum W. L. Jepson 1936-8-17 17925 Humboldt 2 1/2 mi s of Fields Landing Comment
  UC1076088  Lithocarpus densiflorus Herbert L. Mason 1928-7-14 4899 Humboldt East Fork of Eel River East Fork of Eel River, Gaberville; Gaberville Comment
  UC1196490  Lithophragma affine Joseph P. Tracy 1941-3-26 16819 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  UC1222386  Lithophragma affine Joseph P. Tracy 1951-5-6 19400 Humboldt 5 mi e Carlotta (by old Strong's District School House); e of Carlotta 60 Comment
  UC667090  Lithophragma campanulatum Joseph P. Tracy 1935-7-24 14191 Humboldt near Ranger Station Trinity Summit 1828 Comment
  UC667091  Lithophragma campanulatum Joseph P. Tracy 1933-7-11 12689 Humboldt Grouse Mountain 1524 Comment
  UC1199421  Logfia gallica Joseph P. Tracy 1929-6-3 8604 Humboldt near South Fork; Trinity River Valley 182 Comment
  UC180203  Logfia gallica Joeseph P. Tracy 1914-5-14 4467 Humboldt Fort Seward 121 Comment
  UC167379  Lolium multiflorum Joseph Burtt Davy 1899-7-30 6212 Humboldt Russ Ranch Comment
  UC50708  Lolium multiflorum Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6112 B Humboldt Arcata; Russ Ranch, North-Western California Comment
  HSC27040  Lolium perenne Brad Klipfel 1973-8-24 283 Humboldt Roadside waste near Hwy. 101 Comment
  POM188113  Lolium perenne Marcus E. Jones 1931-7-16 29212 Humboldt Arcata. Comment
  HSC71085  Lomatium dasycarpum subsp. dasycarpum Thomas W. Nelson, Jane P. Nelson 1977-5-30 3404 Humboldt Large rock downstream from Anderson's Ford 640 Comment
  HSC99106  Lomatium dasycarpum subsp. dasycarpum Cara Witte 2008-6-18 743 Humboldt Horse Mountain Botanical Area. Junction of 6N36 and 6N36A. 1375 Comment
  HSC34919  Lomatium dissectum var. dissectum Thomas W. Nelson, James Nelson 1975-5-24 1855 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1197140  Lomatium utriculatum Joseph P. Tracy 1924-3-16 6626 Humboldt Northern Coast Ranges, Garberville 121 Comment
  JEPS12868  Lonicera ciliosa Joseph P. Tracy 1921-6-19 5836 Humboldt viz. ridge n Willow Creek (between Willow and Campbell Creeks); Northern Coast Ranges, Brannan Mountain 944 Comment
  HSC58121  Lonicera conjugialis G. L. Clifton, Griswold 1979-8-1 12092 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  RSA43892  Lonicera hispidula var. vacillans H. M. Pollard 1948-7-21 s.n. Humboldt Near Orleans. Comment
  CHSC65259  Lonicera involucrata var. ledebourii H. E. Parks 1935-5-1 5542 Humboldt Comment
  HSC59044  Lonicera involucrata var. ledebourii Thomas Wood 1979-4-20 123 Humboldt Along frontage Rd., parallel and E of Hwy. 101 at Patrick Creek Drive intersection, S of Patrick Creek. 6 Comment
  UC1223439  Lotus corniculatus Joseph P. Tracy 1950-9-22 19345 Humboldt 2 mi s Field's Landing town 6 Comment
  SDSU4292  Lotus corniculatus D. F. Howe 1959-8-4 2808 Humboldt Roadside near bridge over Eureka slough by Humboldt Bay. Comment
  HSC78921  Lotus humistratus Jimerson, Imper 1982-5-17 1441 Humboldt Near Ashfield Ridge. 822 Comment
  UC302114  Lotus oblongifolius Joseph P. Tracy 1926-6-20 7629 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  JEPS55745  Lotus purshianus var. purshianus Lincoln Constance 1934-5-26 667 Humboldt s end Dyerville Bridge (South Fork Eel River); , Bull Creek Region 45 Comment
  UC1223419  Lotus purshianus var. purshianus Joseph P. Tracy 1937-8-12 15628 Humboldt 3 mi s Murphy Meadows (at border of Lake Prairie Bog); Bald Mountain, Lake Prairie, Lake Prairie Bog 1066 Comment
  HSC40946  Lotus unifoliolatus var. unifoliolatus Linda M. Barker 1976-6-1 1548 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC1197303  Lotus wrangelianus Joseph P. Tracy 1927-6-18 8178 Humboldt on road from ocean towards Petrolia; Northern Coast Ranges, Cape Mendocino 30 Comment
  RSA21446  Lotus yollabolliensis C. B. Wolf 1937-8-12 9210 Humboldt North Coast Range, South Fork Mountain, 0.6 miles S of Blake Lookout. 1677 Comment
  RSA21198  Luina hypoleuca C. B. Wolf 1937-8-9 9086 Humboldt Klamath River, 5 7/10 miles above Orleans. Comment
  HSC98526  Lupinus albicaulis Cara Witte 2007-6-4 182 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  HSC96943  Lupinus albifrons var. collinus Ryoko Ito, Shauna McDonald 2007-6-11 6 Humboldt 14 mi. above 299, on FS Rd. NF1 1372 Comment
  HSC14772  Lupinus arboreus R. I. Bonn 1965-5-9 43 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC42162  Lupinus arboreus R. J. Mastrogiuseppe, J. D. Mastrogiuseppe 1974-9-3 178 Humboldt Clam Beach 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
  UC156984  Lupinus bicolor Joseph P. Tracy 1908-6 2693 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC503009  Lupinus bicolor Joseph P. Tracy 1932-5-1 9889 Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  UCD107126  Lupinus bicolor Linda M. Barker 1976-6-1 1564 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC14787  Lupinus bicolor Allan R. Marshall 1962-5-13 14 Humboldt W side of Redwood Creek Bridge, along Hwy. 299 259 Comment
  HSC57313  Lupinus latifolius Griswold, Butler 1979-7-10 6326 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC75464  Lupinus latifolius J. O. Sawyer 1980-7-18 3613 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  SEINET12154563  Lupinus latifolius J. P. Tracy 1936-1 15036 Humboldt Grouse Mtn 1524 Comment
  HSC74225  Lupinus latifolius subsp. viridifolius M. A. Baker 1980-7-22 3076 Humboldt Near Salmon Mtn. 1820 Comment
  UCD107971  Lupinus littoralis Linda M. Barker 1976-7-5 1642 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC1223286  Lupinus nanus Joseph P. Tracy 1950-5-6 18641 Humboldt Willow Creek Trinity River Valley 152 Comment
  POM92971  Lupinus polyphyllus subsp. polyphyllus L. R. Abrams 1922-6-25 8251 Humboldt Arcata Comment
  JEPS29845  Lupinus rivularis Rimo Bacigalupi and L. Heckard, J. Weiler 1961-6-23 7835 Humboldt about 1 mi w of Carlotta (or about 1/2 mi e of Hydesville) Comment
  SEINET10837864  Lupinus rivularis Donald E. Bright 1962-6-11 Bright 276 Humboldt Growing with hemlock and redwood, 1 mi n of trinidad. Comment
  RSA87079  Lupinus vallicola subsp. apricus F. W. Peirson 1923-7-10 4221 Humboldt Garberville Comment
  RSA167383  Lupinus variicolor Joseph P. Tracy 1938-6-16 15940 Humboldt Brainards Point, sandy soil along highway between Eureka and Arcata. Comment
  UC2983  Luzula comosa Harley P. Chandler May, 1901 1159 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay Comment
  HSC61636  Luzula comosa Ruby Van Deventer 1959-6-29 Humboldt Humboldt-Del Norte county line, Onion Lake 1220 Comment
  HSC98641  Luzula comosa Cara Witte 2007-6-1 176 Humboldt Along Forest Service 5N10. 1.75 miles east of intersection with National Forest 1. 1365 Comment
  HSC90656  Luzula multiflora subsp. multiflora Gail Newton 1982-5-2 2518 Humboldt Elk River Wildlife Area Comment
  UC1152126  Luzula parviflora Harold E. Parks and Joseph P. Tracy 1947-7-5 17811 Humboldt vicinity Box Camp (w side Trinity Summit); , vicinity Box Camp 1463 Comment
  UC183776  Luzula subsessilis Joseph P. Tracy 1904-4-24 2032 Humboldt Northern Coast Region. Sand Dunes of Ocean Beach at Humboldt Bay Comment
  UC524369  Lycopodiella inundata Ira L. Wiggins 1932-7-19 5893 Humboldt low swamp at s end Big Lagoon Comment
  UC1745149  Lycopodium clavatum Clare T. Golec 2000-7-13 Humboldt NE of Blue Lake 182 Comment
  UCD23453  Lycopodium clavatum K. Niles 1950-10-1 s.n. Humboldt Loleta. Comment
  HSC96513  Lysichiton americanus Gordon Leppig 1999-4-15 1114 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  HSC91595  Lysichiton americanus E. Mackey 1986-10-7 Humboldt Patrick's Point State Park, near park entrance Comment
  JEPS45971  Lythrum hyssopifolia W. L. Jepson 1902-8-4 2146 Humboldt near Petrolia ( Expedition from Ukiah to the Hupa Indian Reservation) Comment
  UC1198468  Lythrum hyssopifolia Joseph P. Tracy 1917-6-19 4725 Humboldt forks of Dobbyn Creek, Northern Coast Ranges Dobbyn Creek; Northern Coast Ranges, Dobbyn Creek 182 Comment
  HSC43203  Lythrum hyssopifolia R. Sutherland 1976-8-13 17 .13876 Humboldt Gravel bar in Redwood Creek in Redwood grove. 87 Comment
  RSA47139  Madia bolanderi Doris K. Kildale 1925-8-16 1180 Humboldt Trinity Summit, Elk Horn Prairie 1524 Comment
  HSC60076  Madia elegans M. A. Baker 1978-5-6 499 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  UC195538  Madia elegans Joseph P. Tracy 1908-6 2683 Humboldt near bridge across Little Van Duzen (nw slope of Buck Mountain); Northern Coast Ranges, Buck Mountain 762 Comment
  UC204700  Madia exigua Joseph P. Tracy 1918-7-5 5006 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  BLMAR641  Madia exigua Jennifer Wheeler 2011-6-21 641 Humboldt Lacks Creek, Stormy saddle prairie 1158 Comment
  CAS-BOT-BC343014  Madia gracilis Alice Eastwood; John Thomas Howell 1937-6-23 4755 Humboldt Dinsmores Comment
  HSC44541  Madia gracilis Brad Klipfel 1973-7-15 160 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC71169  Madia gracilis Thomas W. Nelson 1977-5-30 3415 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  CAS-BOT-BC343025  Madia gracilis Doris K. Kildale 1927-6-25 3564 Humboldt Fearren's Ranch between Thorn & Shelter Cove Comment
  HSC49984  Madia gracilis M. A. Baker 1979-6-7 786 Humboldt N bank of road to Snow Mtn. 610 Comment
  CAS-BOT-BC343595  Madia sativa Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  CHSC69499  Madia sativa Vernon Oswald; Lowell Ahart 1997-9-4 8854 Humboldt Samoa Dunes Recreation Area at the south end of the North Spit separating Humboldt Bay from the ocean. 0 Comment
  UC581812  Madia sativa Joseph P. Tracy 1936-8-24 15178 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  HSC5990  Madia sativa W. D. Stevens 1967-7-22 63 Humboldt Above the dirt road from old Hwy. 101 to the top of N bank of Mad River Comment
  HSC15589  Maianthemum dilatatum Wm. F. Bowman 1968-10-26 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  UC15043  Maianthemum dilatatum J. P. Tracy 1901-5-5 1064 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC508515  Maianthemum dilatatum Doris K. Kildale 1925-12-20 1342 Humboldt Big Lagoon Comment
  HSC15600  Maianthemum dilatatum Francis Winter 1960-5-6 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  RSA24336  Maianthemum dilatatum Carl B. Wolf 1941-2-25 9959 Humboldt South side of Freshwater Lagoon 61 Comment
  RSA698056  Maianthemum racemosum subsp. amplexicaule J. R. Bruff 1937-8-17 924 Humboldt Richardson Grove. Comment
  RSA20847  Maianthemum stellatum Carl B. Wolf 1937-6-18 8887 Humboldt Table Bluff between Humboldt Bay and Eel River. 30 Comment
  CAS-BOT-BC140132  Malus fusca L. R. Abrams; G. T. Benson 1924-5-17 10730 Humboldt Trinidad Head Comment
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Jun 17 2020
  RSA1806  Malus fusca Carl B. Wolf 1930-10-26 1766 Humboldt south edge of Big Lagoon, near the Redwood highway bridge. 3 Comment
  UC1198759  Malus fusca J. P. Tracy 1901-5-12 1090 Humboldt immediate vicinity Eureka 0 Comment
  UC14229  Malus fusca Chesnut and Drew 1888-8-10 Humboldt Arcata Comment
  UC18729  Malva nicaeensis C. C. Marshall 1888-1 Humboldt in Humboldt County Humboldt County Comment
  UC180180  Malva parviflora Joseph P. Tracy 1914-6-26 4518 Humboldt Northern Coast Region, Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC100465  Marah Carl C. Marshall Apr 1886 55 Humboldt Everywhere. Comment
  SEINET4929765  Marah fabacea Unknown 2002-8-22 90 Humboldt Along Fischer Road 0.25mi N of the Mad River. Comment
  RSA424587  Marah oregana T. S. Elias, Barbara A. Elias 1987-8-24 10620 Humboldt Prairie Creek Redwoods State Park; Gold Bluffs Beach. Comment
  UC1409146  Marah oregana Larry DeBuhr, Gary Wallace 1973-5-19 1116 Humboldt Gold Bluff Beach Prairie Creek Redwood State Park Comment
  UCSB23847  Marah oregana Keefe, Joseph 1967-7-8 Humboldt Crannell Road, 2.0 miles east of Crannell, north of Eureka 30 Comment
  HSC100443  Matricaria discoidea Carl C. Marshall May 1886 215 Humboldt Roadsides, etc. Humboldt Bay. Comment
  RSA249711  Medicago polymorpha Robert F. Thorne 35258 Humboldt N edge of Eureka, E of Hwy. 101. 5 Comment
  RSA10133  Melica bulbosa Joseph P. Tracy 1932-7-12 10445 Humboldt Open ground at Corral Prairie, Trinity Summit, Klamath Mountains. 1524 Comment
  SEINET200336 Image available Melica californica J. P. Tracy 1913-6-18 4195 Humboldt Dinsmore's Ranch vally of Van Duzen River opposite Buck Mtn N Coast Ranges 762 Comment
  UC1103758  Melica fugax Joseph P. Tracy 1936-7-5 15041 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC281319  Melica harfordii David D. Keck 1948-7-2 6012 Humboldt 1 mile N of Richardson Grove, US Highway 101 highway, along S Fork of Eel River, S facing road cut and ditch Comment
  HSC71167  Melica harfordii Thomas W. Nelson 1977-5-30 3413 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  SEINET11678859  Melica harfordii H. P. Chandler 1901-1 1477 Humboldt Klamath River, North Coast Ranges 366 Comment
  UCD88315  Melica stricta A. H. Murphy 1951-4-18 s.n. Humboldt Ft. Seward. Next to railroad right-of-way adjacent to river in shade. 182 Comment
  HSC10366  Melica subulata E. W. Styskel 1963-5-16 30 Humboldt 3.0 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  UC1145129  Melica subulata Joseph P. Tracy 1942-6-2 17100 Humboldt 2 mi n Bridgeville 609 Comment
  JEPS65552  Melilotus albus Lincoln Constance 1934-5-26 661 Humboldt Dyerville Bridge South Fork Eel River, Bull Creek Region (s end, sand and gravel bar) 45 Comment
  UC16145  Melilotus albus Joseph Burtt Davy and Walter C. Blasdale 1899-6-29 5900 Humboldt Klamath R. Comment
  HSC26919  Melilotus albus Brad Klipfel 1973-7-30 218 Humboldt Samoa Rd., near Mad River Slough Comment
  UC1197422  Melilotus indicus Joseph P. Tracy 1933-5-20 12232 Humboldt Cape Mendocino; near ocean 9 Comment
  UCD125052  Mentha canadensis Malcolm A. Nobs; S. Galen Smith 1949-8-9 1241 Humboldt on south side of the town of Blue Lake. Comment
  HSC28256  Menziesia ferruginea subsp. ferruginea Gary S. Lester 1973-12-2 59 Humboldt Humboldt State University Campus, Arcata Comment
  CAS-BOT-BC428713  Micranthes californica Doris K. Kildale 1927-3-20 2925 Humboldt Philipsville, south fork of Eel River Comment
  CAS-BOT-BC322677  Microseris laciniata S. K. Harris; J. P. Tracy; H. S. Yates 1936-6-17 3482 Humboldt Highway about one mile west of Bridgeville Comment
  CAS-BOT-BC322686  Microseris laciniata M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  UC1223043  Microseris laciniata subsp. laciniata Joseph P. Tracy 1947-6-8 17706 Humboldt by old Strong's District School House (5 mi e of town); Carlotta 60 Comment
  UC92136  Microseris laciniata subsp. leptosepala Harley P. Chandler June 1901 1408 Humboldt Klamath River North Coast Ranges, Klamath River 243 Comment
  UC34653  Microseris nutans Chesnut and Drew 1888-7-21 Humboldt w slope South Fork Mt. Comment
  UC722294  Mimulus aurantiacus var. aurantiacus C. L. Hitchcock, J. S. Martin 1939-7-14 5439 Humboldt Shelter Cove Comment
  UCSB15934  Mimulus dentatus Breedlove, Dennis 1962-6-8 Humboldt along U.S. Highway 101; 8 miles north of Orick 60 Comment
  UC162587  Mimulus floribundus Joseph P. Tracy 1911-7-6 3364 Humboldt along road between mouth of Willow Creek and Three Creeks (Koby's ranch); Northern Coast Ranges 762 Comment
  HSC45271  Mimulus guttatus M. Alcasas 1978-6-3 116 Humboldt On Titlow Hill Rd., 1.3 mi. from Hwy. 299 1463 Comment
  RSA454336  Mimulus guttatus Francis W. Pennell, Joseph P. Tracy 1940-7-7 26087 Humboldt Route 299. Headwaters of Willow Creek. 762 Comment
  RSA60480  Mimulus guttatus John H. Thomas 1949-6-12 896 Humboldt Along road between Orick and Martin's Ferry. 15.5 miles west of Martin's Ferry. 762 Comment
  JEPS10788  Mimulus inodorus Joseph P. Tracy 1923-9-16 6551 Humboldt near South Fork; Trinity River Valley 182 Comment
  UC1196768  Mimulus inodorus Joseph P. Tracy 1939-8-5 16376 Humboldt Dinsmore's Van Duzen River 731 Comment
  UC444807  Mimulus kelloggii Joseph P. Tracy July, 1908 2760 Humboldt near Low Gap (ridge between Van Duzen River and Mad River) 914 Comment
  UC1196787  Mimulus nanus var. nanus Joseph P. Tracy 1933-7-16 12795 Humboldt Hyampon Trail South Fork Mountain 1676 Comment
  HSC18484  Mimulus pilosus Jana Kattenhorn 1970-10-28 200 Humboldt Mad River, Essex Rd. off Hwy. 299 Comment
  JEPS51444  Minuartia douglasii Lincoln Constance 1934-5-29 732 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  UC668121  Minuartia douglasii Joseph P. Tracy 1935-6-23 13972 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC388622  Minuartia douglasii Doris K. Kildale 1926-4-30 1919 Humboldt Fruitland - Hill Harris road Comment
  HSC71799  Minuartia nuttallii subsp. gregaria M. A. Baker 1980-6-8 1924 Humboldt Near Buck Flat. 1554 Comment
  UC668117  Minuartia nuttallii subsp. gregaria Joseph P. Tracy 1933-7-25 12829 Humboldt Horse Mountain 1432 Comment
  UC668119  Minuartia nuttallii subsp. gregaria Joseph P. Tracy 1935-7-30 14353 Humboldt Salmon Summit 1767 Comment
  UC303175  Mitella ovalis Joseph P. Tracy 1923-6-20 6310 Humboldt White Thorn Valley Northern Coast Ranges (banks of creek) 304 Comment
  CAS-BOT-BC433067  Mitella trifida J. H. Thomas 1949-6-13 911 A Humboldt Between Le Perron Flat and Whitey's Peak, along trail. East of town of Orleans. 1371 Comment
  HSC38514  Moehringia macrophylla D. E. Anderson, J. P. Smith 1971-6-18 - 1086 Humboldt Horse Mtn. Comment
  UC668120  Moehringia macrophylla Joseph P. Tracy 1935-7-25 14225 Humboldt near Corral Prairie (Trinity Summit); , near Corral Prairie 1584 Comment
  HSC96945  Moehringia macrophylla Ryoko Ito, Shauna McDonald 2007-6-13 8 Humboldt 1 mi. from NF1 on FS 5N04 1601 Comment
  HSC57942  Monardella glauca G. L. Clifton, Griswold 1979-7-31 11612 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC41256  Monardella odoratissima Brad Klipfel 1974-6-25 446 Humboldt Horse Mtn. Comment
  UC1586862  Monardella odoratissima subsp. glauca Juha Pykala and D. H. Norris 1987-6-11 1570 Humboldt sw North Trinity Mountain; North Trinity Mountain Wilderness Comment
  UC2035920  Monardella odoratissima subsp. pallida Joseph P. Tracy Jul 16 1930-Jul 19 1930 8911 Humboldt South Fork Mountain near McKay Camp; Northern Coast Ranges 1676 Comment
  LA62437  Monardella villosa Carl Epling; William Robison 1935-7-24 sn Humboldt Dyerville Comment
  RSA0022803  Monardella villosa subsp. subserrata L. R. Abrams 1922-6-25 8221 Humboldt Camp Cemi [?], north Garberville. Comment
  UC1239682  Monardella villosa subsp. villosa Joseph P. Tracy 1939-8-5 16381 Humboldt Dinsmore's 731 Comment
  JEPS62412  Monardella villosa subsp. villosa W. L. Jepson 1932-8-8 16483 Humboldt Grasshopper Peak 1066 Comment
  UC1409015  Monotropa hypopitys Robert F. Thorne and P. Everett 1965-8-5 35132 a Humboldt Wailaki Recreation Site 609 Comment
  UC34369  Monotropa hypopitys Chesnut and Drew 1888-7-9 Humboldt Kneeland 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
  JEPS43276  Montia howellii J. P. Tracy 1909-5-2 2956 Humboldt Eureka Comment
  RSA739606  Montia parvifolia John Dittes, Josephine Guardino 2003-6-7 2003 -64 Humboldt Outer N coast Range, 2.9 air mile NW of Legget, 5.2 air mile SE of Piercy, shaded rocks on eastern bank of S Fork Eel River. 183 Comment
  UC673004  Montia parvifolia Joseph P. Tracy 1935-7-24 14170 Humboldt Trinity Summit, near Ranger Station Trinity Summit 1828 Comment
  UC503092  Morella californica Joseph P. Tracy 1931-5-1 9332 Humboldt Northern Coast Ranges, Downs Prairie Comment
  UC1222233  Myosotis discolor Joseph P. Tracy 1942-6-15 17116 Humboldt Englewood Prairie Comment
  UC582561  Myosotis discolor Joseph P. Tracy 1937-5-17 15298 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  JEPS70782  Myosotis latifolia W. L. Jepson 1934-5-7 16685 Humboldt Dyerville Comment
  HSC12417  Myosotis sylvatica D. Santana 1970-11-15 115 Humboldt Near Fickle Hill Rd. and 7th St. Comment
  SEINET5624090 Image available Myosotis versicolor Joseph P. Tracy 1942-1 17116 Humboldt Englewood Prairie Comment
  UC1196177  Myosurus minimus Mrs. Emma N. Cathey 1936-7 Humboldt near Miranda (Cathey Ranch); Cathey Ranch 304 Comment
  CAS-BOT-BC101663  Myrica californica Harley P. Chandler 1901-5-1 1168 Humboldt Humboldt Bay 30 Comment
  HSC98157  Narcissus pseudonarcissus N. D. Dennis 1965-4-8 15 Humboldt Old Arcata Rd. at Jacoby Creek Rd. Comment
  HSC91593  Narcissus tazetta E. Mackey 1986-7-21 Humboldt Patrick's Point State Park near Ceremonial Rock. Comment
  UC1173634  Narthecium californicum Joseph P. Tracy 1934-8-29 13629 Humboldt meadow at McKay Camp (S. Fork Mt.); S. Fork Mt. 1676 Comment
  CAS-BOT-BC60346  Nasturtium officinale Doris K. Kildale 1927-6-25 3555 Humboldt Shelter Cove. Comment
  UC907810  Navarretia atractyloides Joseph P. Tracy 1927-8-7 8307 Humboldt Willow Creek Schoolhouse Trinity River Valley, Willow Creek 152 Comment
  HSC99059  Navarretia capillaris Cara Witte 2007-7-8 436 Humboldt Board Camp Mountain. Trail 4E28. 1498 Comment
  HSC56334  Navarretia divaricata Overton, Butler 1979-8-2 12710 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC907815  Navarretia leucocephala subsp. minima Joseph P. Tracy 1928-6-24 8476 Humboldt between Middle and North Yager Creeks (East Ranch) 762 Comment
  HSC81494  Navarretia mellita Thomas W. Nelson, Jane P. Nelson 1980-8-12 6235 Humboldt Logging roads S of Lundbar Hills 61 Comment
  HSC17144  Navarretia pubescens William J. Ferlatte, B. D. Rogers 1966-6-15 2098 Humboldt E of Bridgeville on Hwy. 36 671 Comment
  UC52878  Navarretia tagetina Chesnut and Drew 1888-7-23 Humboldt Hy-Am-Pum Comment
  UC1198524  Navarretia tagetina Joseph P. Tracy 1942-7-1 17362 Humboldt opposite Buck Mountain (Dinsmore's, along Van Duzen River); Northern Coast Ranges, Van Duzen River 762 Comment
  UC169028  Nemacladus capillaris Joseph P. Tracy Jul 21 1905-Aug 16 1905 2296 Humboldt Elk Mountain; Northern Coast Ranges 1219 Comment
  JEPS1791  Nemophila menziesii var. atomaria Lincoln Constance 1934-6-15 879 Humboldt summit of Grasshopper Peak; Bull Creek Region, South Fork Eel River, Grasshopper Peak 975 Comment
  UC562584  Nemophila menziesii var. atomaria Joseph P. Tracy 1932-5-1 9858 Humboldt Redway 182 Comment
  SD42585  Nemophila menziesii var. atomaria Carl B. Wolf 1937-6-19 8915 Humboldt North Coast Range, 3 mi. w. of Little Van Duzen River at summit of grade -- Dinsmores to Bridgeville. 762 Comment
  UC24262  Nemophila menziesii var. atomaria Joseph Burtt Davy and Walter C. Blasdale 1899-5 5739 Humboldt Hoopa Valley North-Western California, Hoopa Valley Comment
  UC1103812  Nemophila pedunculata Joseph P. Tracy 1923-2-25 6147 Humboldt Cummings Creek Northern Coast Ranges, , at Cummings Creek (Carlotta) 60 Comment
  HSC48251  Nuphar polysepala James Hansen 1975-5-28 Humboldt Essex pond on Essex Ranch, .5 mi. N of Hwy. 299 near Blue Lake Comment
  UC582473  Nuttallanthus texanus Joseph P. Tracy 1928-5-6 8431 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  RSA293126  Oemleria cerasiformis Thomas W. Nelson 1976-3-22 2276 Humboldt moist hillside beside Eureka Muni. Golf Course. Comment
  UC1039818  Oemleria cerasiformis J. I. Mallory 1956-4-27 127 Humboldt 1.5 mi w Petrolia (at head of Jeffrey Gulch); Jeffrey Gulch 167 Comment
  HSC38335  Oenanthe sarmentosa Peter Sorensen 1976-8-11 Humboldt King Salmon Comment
  UC314582  Oenanthe sarmentosa Joseph P. Tracy 1924-9-28 6910 Humboldt Centerville Northern Coast Ranges, Centerville 6 Comment
  RSA0004549  Oenothera hookeri subsp. wolfii Carl B. Wolf, E. R. Johnson 1934-12-11 6172 Humboldt Redwood Highway just south of Trinidad. 30 Comment
  HSC16488  Oenothera wolfii D. E. Anderson 1962-7-5 2246 Humboldt Luffenholtz Comment
  HSC104287  Orobanche californica subsp. californica Samantha E. Andres 2016-6-7 17 Humboldt Big Lagoon, ~.5 mi. from the parking lot 3 Comment
  UC1197447  Orobanche californica subsp. californica Joseph P. Tracy 1939-8-6 16398 Humboldt Big Lagoon. Comment
  CAS-BOT-BC500261  Orobanche uniflora subsp. occidentalis Doris K. Kildale 1927-5-20 3216 Humboldt Bug Creek 792 Comment
  UC642296  Orogenia fusiformis Joseph P. Tracy 1932-7-15 10595 Humboldt ridges e. of Corral Prairie Trinity Summit 1828 Comment
  HSC55229  Orthilia secunda G. L. Clifton, Griswold 1979-8-2 12430 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1212578  Orthilia secunda Francia Chisaki and Helen Sharsmith 1959-8-21 4758 Humboldt Happy Camp just over line from trinity County 914 Comment
  RSA80246  Orthocarpus erianthus var. gratiosus F. W. Peirson 1941-7-28 13107 Humboldt Along road to Patrick Point, State Park. Comment
  POM228347  Orthocarpus faucibarbatus var. albidus S. K. Harris 1936-6-7 683 Humboldt Eureka. Near railroad station. 3 Comment
  UC1222795  Orthocarpus imbricatus Joseph P. Tracy 1950-8-8 19285 Humboldt Croghan Hole Trinity Summit (Trinity Summit); , Croghan Hole 1676 Comment
  SEINET3111140  Osmaronia cerasiformis Steve Selva, Roger Jensen 1974-8-28 93 Humboldt Humboldt State University Freshwater Forest. Comment
  HSC55999  Osmorhiza berteroi Overton, Butler 1979-7-31 11444 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC99397  Osmorhiza berteroi K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 46 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC314579  Osmorhiza berteroi Joseph P. Tracy 1923-6-19 6291 Humboldt Upper Mattole Valley Northern Coast Ranges 152 Comment
  UC1222754  Osmorhiza berteroi Joseph P. Tracy 1950-6-25 18889 Humboldt Burr Valley Buck Mountain (nw slope of mt.) 1066 Comment
  HSC48813  Osmorhiza occidentalis Brad Klipfel 1973-7-31 227 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA245261  Oxalis corniculata R. A. Vanbianchi 1971-11-5 92 Humboldt Humbolt State College campus. SouthWest corner theatre arts building. Comment
  CHSC23900  Oxalis oregana D. G. Houston 1966-3-5 7 Humboldt Six miles up Fickle Hill Rd. 609 Comment
  HSC100585  Oxalis oregana Carl C. Marshall Mar 1886 151 Humboldt Everywhere. Comment
  HSC22047  Oxalis oregana B. D. Rogers, D. E. Anderson 1965-5-1 511 Humboldt 4 mi. SE of Arcata along Jacoby Creek Comment
  HSC46169  Oxalis oregana J. P. Smith 1973-5-26 6852 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  SBBG25583  Oxalis oregana E. R. Blakley 1966-8-17 6794 Humboldt Little Crk, Prairie Crk St Park, ca. 10 mi N of Orick 60 Comment
  UCR179287  Oxalis oregana R. G. Swinney 1968-3-8 216 Humboldt Arcata 152 Comment
  HSC48829  Oxalis trilliifolia Brad Klipfel 1973-7-31 254 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CAS-BOT-BC318155  Packera bolanderi var. bolanderi LeRoy Abrams 1916-7-11 6009 Humboldt Mouth of Grizzly Creek on Van Duzon River Comment
  UC91426  Packera bolanderi var. bolanderi W. W. Price Humboldt Mad River Comment
  UC183769  Paeonia brownii Joseph P. Tracy 1913-6-17 4150 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (nw slope of mt.) 1066 Comment
  UC1145220  Panicum acuminatum var. acuminatum Joseph P. Tracy 1939-7-9 16323 Humboldt Bald Mountain at Lake Prairie; Bald Mountain at Lake Prairie 1066 Comment
  JEPS3365  Parentucellia viscosa Joseph P. Tracy 1937-7-17 15433 Humboldt Eureka 30 Comment
  UC582563  Parentucellia viscosa Joseph P. Tracy 1937-7-17 15433 Humboldt Eureka 30 Comment
  POM230334  Parentucellia viscosa J. T. Howell 1937-7-31 13719 Humboldt 3 miles west of Korbel, Comment
  UCSB23368  Parentucellia viscosa Haller, John 1967-6-17 Humboldt Coastal dunes at Clam Beach County Park, U.S. Highway 101, about 10 miles north of Arcata Comment
  HSC20924  Pedicularis densiflora D. E. Anderson 1962-5-1 2202 Humboldt 1 mi. W of Hoopa Comment
  JEPS10724  Pedicularis groenlandica Joseph P. Tracy 1932-7-16 10639 Humboldt Corral Prairie; Trinity Summit 1584 Comment
  RSA151842  Pedicularis racemosa Francia Chisaki, H. K. Sharsmith 1959-8-22 4754 Humboldt At Happy Camp adjacent to Douglas Fir Forest. Just over Trinity County line. 915 Comment
  UC519313  Pellaea Joseph P. Tracy 1933-6-13 12561 Humboldt near summit on rd w from Hoopa to Bair's; Northern Coast Ranges, Hoopa Mt 1066 Comment
  HSC100933  Pellaea andromedifolia Miss Handy Jun 1886 336 Humboldt Maple Cr. (on a large rock). Comment
  RSA54127  Pellaea brachyptera Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mountain 1524 Comment
  HSC44545  Penstemon anguineus Brad Klipfel 1973-7-15 164 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC56009  Penstemon anguineus Gilbert Muth 1979-7-31 11491 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  HSC56260  Penstemon anguineus G. L. Clifton, Terry Griswold 1979-8-2 12416 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  RSA420442  Penstemon anguineus Thomas W. Nelson, Jane P. Nelson 1976-7-1 2907 Humboldt Along east side of Red Lassic; beside road 1S07. 1677 Comment
  UC1326253  Penstemon anguineus Milo S. Baker 1947-8-10 11911 Humboldt near end of Forest Rd from Hoopa toward Trinity Summit; rd from Hoopa toward Trinity Summit 1371 Comment
  HSC76256  Penstemon heterophyllus Denis Kearns 1981-7-6 43 Humboldt Near Mosquito Lake 1122 Comment
  UC902217  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1942-7-2 17369 Humboldt opposite Buck Mountain (Dinsmore's); along Van Duzen River, Dinsmore's 762 Comment
  HSC100913  Penstemon jaffrayanus Carl C. Marshall Jun 1886 275 Humboldt Trail E of Hoopa. Comment
  JEPS11634  Penstemon laetus var. sagittatus Joseph P. Tracy 1937-7-24 15513 Humboldt 2 mi se Devil's Hole; Trinity Summit, se of Devil's Hole 1584 Comment
  RSA420427  Penstemon newberryi subsp. berryi Thekla Mohr s.n. Humboldt Eel River. Humboldt and Mendocino Cos. Comment
  HSC102618  Penstemon newberryi var. berryi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1605 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  UC168978  Penstemon newberryi var. berryi Joseph Burtt Davy and Walter C. Blasdale Jun 21-23 1899 5860 Humboldt Trinity Summit North Coast Ranges Comment
  UC902219  Penstemon parvulus Joseph P. Tracy 1942-6-23 17223 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UC1542884  Penstemon rattanii var. rattanii Harold E. Parks June 1951 Humboldt Camaron Hill Humboldt Mt. locality, Kneeland district, Camaron Hill (Kneeland) Comment
  HSC36644  Pentagramma triangularis J. D. Ackerman 1974-5-25 262 Humboldt Trinidad, South Trinidad Beach, S of Trinidad Head. Comment
  RSA0094699  Pentagramma triangularis Ira L. Wiggins 1957-6-21 14139 Humboldt On E side of road, 1 mi. S of Garberville. Comment
  UC184100  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1913-9-7 4390 Humboldt Eureka Northern Coast Region 0 Comment
  HSC56312  Perideridia kelloggii Overton, Butler 1979-8-2 12645 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1389970  Perideridia kelloggii T. I. Chuang and B. G. Briggs 1963-4-10 5088 Humboldt 4 mi e Myers Flat Comment
  HSC99093  Perideridia oregana Cara Witte 2007-7-8 447 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  HSC17526  Persicaria maculosa John Warner Hosking 1968-10-10 Humboldt Clam Beach Comment
  HSC6050  Petasites frigidus var. palmatus C. O. Baker 1962-3-22 6 Humboldt 2 mi. S of Trinidad along old Hwy. 101 183 Comment
  UCD134922  Petasites frigidus var. palmatus K. Esau 1934-4-1 s.n. Humboldt Above Fort Seward. Comment
  POM287459  Phacelia bolanderi Lyman Benson 1929-7-16 1839 Humboldt Dyerville Junction of North and South Forks of Eel River. Comment
  UC1222903  Phacelia californica Joseph P. Tracy 1950-6-8 18763 Humboldt e slope from summit Domingo Hill (near Petrolia) Comment
  HSC96240  Phacelia heterophylla subsp. virgata Kaylea Eickhoff, Cara M. Witte 2005-6-8 6 Humboldt 1.7 mi. S of Hwy. 299 on Titlow Hill Rd. 980 Comment
  UCD120520  Phacelia heterophylla subsp. virgata Alice Eastwood; John Thomas Howell 1937-6-23 4757 Humboldt Dinsmore's. Comment
  JEPS1161  Phacelia mutabilis Lincoln Constance 1934-6-19 909 Humboldt Grasshopper Peak South Fork Eel River, Bull Creek region (near summit) 914 Comment
  UC175504  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1912-6-9 3666 Humboldt Alton Northern Coast Region 30 Comment
  UC673179  Phacelia nemoralis subsp. oregonensis Lincoln Constance and Reed C. Rollins 1942-5-11 2782 Humboldt 6 mi s Hoopa; North Coast Ranges, Hoopa Valley 121 Comment
  HSC35714  Philadelphus californicus Thomas W. Nelson 1975-10-12 2235 Humboldt McKeown Ranch, N of Dinsmore Comment
  CAS-BOT-BC76563  Philadelphus lewisii Harley P. Chandler 1901-6-1 1333 Humboldt Hupa Indian Reservation 152 Comment
  JEPS49601  Philadelphus lewisii W. L. Jepson 1902-7-1 1964 Humboldt Hupa Road Redwood Creek Comment
  UC666824  Philadelphus lewisii Joseph P. Tracy 1938-6-9 15872 Humboldt Dobbyn Creek 152 Comment
  POM301286  Phlox adsurgens Joseph P. Tracy 1942-6-23 17233 Humboldt Trinity Summit, near Box Camp 1524 Comment
  HSC17159  Phlox diffusa D. E. Anderson 1965-4-24 3529 Humboldt Horse Mtn. 1524 Comment
  UC908462  Phlox gracilis Joseph P. Tracy 1930-6-21 8791 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  UC908605  Phlox gracilis Joseph P. Tracy 1932-7-10 10380 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC36216  Phoradendron serotinum subsp. tomentosum John Rehling 1975-11-8 109 Humboldt Near Berry Summit, just off Hwy. 299 Comment
  JEPS44665  Physocarpus capitatus Lincoln Constance 1934-5-26 656 Humboldt s end Dyerville Bridge (s bank of S. Fork of Eel River); Bull Creek Region Comment
  RSA172348  Physocarpus capitatus Robert F. Thorne 1957-9-2 19000 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC249641  Physocarpus capitatus Joseph P. Tracy 1922-9-3 6110 Humboldt Klamath River at Bluff Creek 91 Comment
  CAS-BOT-BC73446  Picea sitchensis Carl B. Wolf 1930-10-28 1037 Humboldt 5 miles south of Ferndale on road to Petrolia. 152 Comment
  CAS-BOT-BC78200  Picea sitchensis W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  HSC1354  Picea sitchensis J. W. Johnson 1962-4-29 1295 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata. Comment
  HSC1356  Picea sitchensis S. J. Hawks 1965-3-19 9 Humboldt 1/4 mi. W of Fairhaven Comment
  HSC95902  Picea sitchensis Will Ferrand 2002-4-28 40 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  LA206239  Picea sitchensis Carl Epling; William Robison 1935-7-22 sn Humboldt near Patrick's Point Comment
  OBI33130  Picea sitchensis David J. Keil 1983-7-1 17295 Humboldt Between Ferndale and Bear River Ridge Rd along Mattole Rd Comment
  RSA2205  Picea sitchensis C. B. Wolf 1930-10-28 s.n. Humboldt 5 miles S of Ferndale on road to Petrolia. 152 Comment
  RSA23  Picea sitchensis E. R. Johnson 1928-8-26 1146 Humboldt Arcata. Comment
  HSC99044  Pinus attenuata Cara Witte 2008-6-15 752 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36. 1 mile north of intersection with 6N36A. 1428 Comment
  CAS-BOT-BC78373  Pinus contorta H. E. Parks 1931-5-1 s.n. Humboldt Samoa, Pine Barrens Comment
  HSC1480  Pinus contorta J. R. Kahl 1962-4-13 15 Humboldt 1 mi. N of Samoa, 1,200 yds. from ocean Comment
  SD41322  Pinus contorta Edith A. Purer 1932-7-27 4132 Humboldt Samoa, near Arcata Comment
  UC665726  Pinus contorta subsp. contorta H. E. and S. T. Parks 1938-3-1 24125 Humboldt Spruce Cove Trinidad, Spruce Cove 60 Comment
  UC519311  Pinus jeffreyi Joseph P. Tracy 1983-8-30 13007 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1371 Comment
Read comments
Jun 28 2015
  RSA46657  Pinus monticola Doris K. Kildale 1937-8-12 15086 Humboldt South Fork Mountain. Comment
  UC1196419  Piperia elegans Joseph P. Tracy 1947-7-9 17831 Humboldt lower slopes Horse Mountain (at the Arford Cabin) 1219 Comment
  UC1222185  Piperia unalascensis Joseph P. Tracy 1950-6-15 18819 Humboldt 7 mi n Harris (at Huestis Rock, on ne side of Mail Ridge); Mail Ridge, Huestis Rock 822 Comment
  RSA226608  Plagiobothrys nothofulvus Norman Dennis 1965-6-11 114 Humboldt About 0.25 mile S and 1 mile E of the junction of Barry Ridge Road and the Eureka-Bridgeville county road, along Ashfield Ridge Road. About 5 miles SE of Kneeland. 793 Comment
  HSC63979  Plagiobothrys nothofulvus J. P. Smith, J. O. Sawyer 1973-5-12 6679 Humboldt 3.3 mi. from Redwood Creek on Hoopa Rd. Comment
  POM160833  Plagiobothrys reticulatus Joseph P. Tracy 1918-7-5 2010 Humboldt White Thorn Valley. 305 Comment
  UC1222213  Plagiobothrys reticulatus Joseph P. Tracy 1942-5-16 17337 Humboldt Garberville 152 Comment
  UC1239571  Plagiobothrys reticulatus Joseph P. Tracy 1933-7-20 12812 1/2 Humboldt along Mad River (near Blue Lake); , Blue Lake 15 Comment
  UCD120867  Plagiobothrys reticulatus Joseph P. Tracy 1946-5-30 17541 Humboldt Riverside Park and Carlotta, by old Strong's District School House, 5 miles east of town. 60 Comment
  JEPS60998  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1937-6-20 15335 Humboldt ten mi up stream from mouth; Bear River 152 Comment
  UC1239615  Plagiobothrys tenellus Joseph P. Tracy 1933-5-18 12190 Humboldt near Blue Lake (on gravel bar); Northern Coast Region, Mad River 15 Comment
  UC604631  Plantago elongata Joseph P. Tracy 1938-7-15 16074 Humboldt Mouth of Eel River 3 Comment
  UCD124424  Plantago erecta Linda M. Barker 1976-4-30 1397 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  JEPS6424  Plantago erecta Joseph P. Tracy 1917-5-30 4793 Humboldt mouth of Little River Northern Coast Ranges, Little River 6 Comment
  HSC16836  Plantago lanceolata A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek junction, 200 yds. W of Lindsey Creek Comment
  HSC83041  Plantago maritima A. L. Eicher 1985-6-16 Humboldt SW side of the mouth of Mad River Slough 1 Comment
  UCD124624  Plantago maritima James Payne Smith Jr. 1970-6-7 3813 Humboldt 0.6 miles north of Luffenholtz Beach along California 1 near Trinidad. Comment
  HSC74221  Platanthera dilatata var. leucostachys M. A. Baker 1980-7-22 3121 Humboldt Near Grogan Hole. 1676 Comment
  HSC36625  Platanthera dilatata var. leucostachys J. D. Ackerman 1975-7-11 539 Humboldt South end of Big Lagoon, near the boat ramp Comment
  UCD138980  Platanthera dilatata var. leucostachys R. S. Woglum 1937-8-29 2037 -a Humboldt State Park grounds south of Trinidad. Comment
  HSC103985  Platystemon californicus E. R. Fyer 2015-3-19 15 Humboldt Samoa; along side of New Navy Base Rd 8 Comment
  UC146095  Platystemon californicus Joseph P. Tracy 1908-6-9 2656 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  JEPS4811  Plectritis brachystemon Joseph P. Tracy 1932-6-26 10255 Humboldt Valley of South Yager Creek 762 Comment
  UC602529  Plectritis brachystemon Joseph P. Tracy 1932-5-22 10117 Humboldt between Miranda and Redway (North Coast Ranges, South Fork of Eel River); North Coast Ranges, South Fork Eel River 91 Comment
  JEPS4813  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
  HSC49370  Pleuricospora fimbriolata T. Jimerson, J. Pageau 1979-6-15 582 Humboldt West of FS 11N21, on the boundary between Sections 27 and 28. 762 Comment
  HSC70450  Pleuropogon refractus Gail Newton 1980-7-20 1625 Humboldt Near Bell Swamps. 1426 Comment
  UCD90106  Pleuropogon refractus R. Tofsrud 1949-7-22 s.n. Humboldt on road between Scotia and Capetown. Comment
  UC1607849  Poa annua Harold E. Parks June 1951 Humboldt Spruce Cove Trinidad Comment
  UCD90242  Poa annua Linda M. Barker 1976-4-30 1399 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  CAS-BOT-BC255122  Poa confinis Joseph P. Tracy 1927-4-24 7947 Humboldt Eureka, near bay shore 9 Comment
  HSC38919  Poa confinis Linda M. Barker 1976-4-30 1412 Humboldt 3 mi. W of Arcata Comment
  SACT001836  Poa confinis Lyle Bibb 1963-5-11 Humboldt Coastal strand amound sandy beach east or Arcata. Sand spit. Comment
  UC584206  Poa douglasii David D. Keck and J. Clausen 1935-6-16 3382 Humboldt mouth of Little River Comment
  OBI22137  Poa macrantha Carl B. Wolf 1937-6-18 8904 Humboldt Centerville Beach Comment
  RSA28797  Poa macrantha H. E. Parks 1934-05 4805 Humboldt Little River lagoon Comment
  UCD91539  Poa macrantha Linda M. Barker 1976-6-22 1625 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCD91801  Poa palustris A. Murphy 1950-5-1 s.n. Humboldt Ferndale area. Comment
  UC187249  Poa pratensis subsp. pratensis Joseph P. Tracy 1911-6-25 3259 Humboldt Bucksport; Northern Coast Region, Humboldt Bay 0 Comment
  HSC47605  Poa secunda subsp. secunda J. P. Smith 1977-4-23 9022 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  HSC73481  Poa secunda subsp. secunda Gail Newton 1980-7-11 1324 Humboldt Near Red Mtn. 1341 Comment
  UC184105  Poa secunda subsp. secunda Joseph P. Tracy 1912-7-31 3916 Humboldt near summit Buck Mt; Northern Coast Ranges 1676 Comment
  UCD91738  Poa secunda subsp. secunda A. H. Murphy 1951-4-18 s.n. Humboldt Tooby and Prior Ranch, Blocksburg. 457 Comment
  UC249871  Poa trivialis Joseph P. Tracy 1923-5-30 6245 Humboldt Salmon Creek Corners; Northern Coast Ranges, Humboldt Bay 6 Comment
  UC525630  Poa trivialis Joseph P. Tracy 1926-6-12 7587 Humboldt near Orick (at Davison's Ranch); North Coast Ranges 60 Comment
  HSC102948  Poa trivialis J. P. Smith Jun 2009 12601 Humboldt Arcata. Lawn weed Comment
  CAS-BOT-BC232887  Polemonium carneum Carl B. Wolf 1937-6-17 8881 Humboldt Big Lagoon, S side at W of Redwood Highway 6 Comment
  UC1191118  Polemonium carneum Joseph P. Tracy 1928-5-20 8440 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  UC275346  Polygala californica Joseph P. Tracy 1923-6-20 6333 Humboldt Briceland Northern Coast Ranges, Briceland 304 Comment
  UC668190  Polygala californica Joseph P. Tracy 1938-7-5 16002 Humboldt by old Strong's District School House (5 mi e of Carlotta); Carlotta, old Strong's District School House 45 Comment
  CAS-BOT-BC167574  Polygala cornuta var. cornuta Joseph P. Tracy 1936-8-30 15182 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC1198989  Polygala cornuta var. cornuta Joseph P. Tracy 1939-8-16 16414 Humboldt barren places Horse Mountain 1432 Comment
  HSC31424  Polygonum aviculare R. F. Thorne, P. Everett 1965-8-8 35244 Humboldt N edge of Eureka, E of Hwy 101 5 Comment
  HSC12419  Polygonum aviculare D. Santana 1970-10-15 70 Humboldt 10th and G St. behind Regal Gas Station Comment
  UC1116243  Polygonum californicum Joseph P. Tracy 1942-9-6 17305 Humboldt opposite Buck Mountain; Van Duzen River, Dinsmore's 762 Comment
  CAS-BOT-BC414466  Polygonum douglasii Doris K. Kildale 1925-8-17 1231 Humboldt Trinity Summit - Waterdog Lake 1828 Comment
  SEINET3405782 Image available Polygonum douglasii Joseph P. Tracy 1947-8-24 17922 Humboldt Trinity Summit; Gravelly slopes on Box Camp trail Comment
  CAS-BOT-BC109180  Polygonum paronychia Joseph P. Tracy 1911-5-30 3200 Humboldt Region about Humboldt Bay. At Bucksport. 152 Comment
  UC1198083  Polygonum persicaria Joseph P. Tracy 1919-9-14 5203 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC672956  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1935-7-28 14316 Humboldt Devil's Hole Trinity Summit (head) 1828 Comment
  CDA36030  Polygonum polystachyum R. Robison 2011-6-3 Humboldt Trinidad State Beach, Stagecoach Road 0 Comment
  POM118346  Polypodium californicum Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC1107  Polypodium californicum C. O. Baker 1962-3-22 4 Humboldt 2 mi. S of Trinidad along old Hwy. 101 122 Comment
  SEINET10530419  Polypodium glycyrrhiza Mary Susan Taylor 1982-10-24 Taylor 5184 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  RSA689966  Polypodium scouleri Susan Hutchinson 1931-07 102 Humboldt Grade between Trinidad and Big Lagoon 15 Comment
  CAS-BOT-BC233074  Polypogon interruptus Joseph P. Tracy 1927-7-16 8260 Humboldt Eureka 60 Comment
  HSC79377  Polypogon interruptus Kenneth Clark 1980-5-10 645 Humboldt Shelter Cove, bluffs of Point Delgada. 5 Comment
  UCD91203  Polypogon maritimus A. H. Murphy 1951-6-13 61 Humboldt 2 miles south of Blocksburg. Tooby and Prior Ranch. Comment
  HSC38920  Polypogon monspeliensis Linda M. Barker 1976-6-1 1552 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC519315  Polystichum Joseph P. Tracy 1933-10-15 13101 Humboldt along S Fork Eel River Miranda; North Coast Ranges 91 Comment
  UC1440057  Polystichum californicum Danin & H. G. Baker 1960-8-13 598 Humboldt ca. 2 mi n Dyerville (High Rock on w side of Eel River, along Ave. of the Giants) Comment
  HSC12977  Polystichum munitum M. Athey, D. La Conte 1970-11-28 2 Humboldt HSU campus Comment
  HSC98660  Polystichum munitum Cara Witte 2007-7-26 597 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1443 Comment
  SDSU276  Polystichum munitum D. R Harvey 1938-8-13 2251 Humboldt Redwood Park. Comment
  HSC98643  Polystichum munitum Cara Witte 2008-7-10 864 Humboldt Forest Service Road 4N06. 2 miles west of National Forest 1. 1195 Comment
  UC60858  Potamogeton natans W. C. Blasdale June, 1896 Humboldt near Graham's Ranch (on Mad River); Mad River Comment
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Sep 17 2012
  CAS-BOT-BC454064  Potamogeton pusillus subsp. pusillus Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans 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
  HSC59078  Potentilla anserina subsp. pacifica Thomas Wood 1979-4-20 117 Humboldt At Clam Beach, off Hwy. 101 ca. 7 mi. N of Arcata 3 Comment
  UCD113697  Potentilla anserina subsp. pacifica D. C. Sumner 1957-4-1 s.n. Humboldt Near Fortuna. Comment
  HSC58120  Potentilla drummondii G. L. Clifton, Griswold 1979-8-1 12089 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  CAS-BOT-BC142024  Potentilla drummondii Joseph P. Tracy 1932-7-10 10391 Humboldt Wet meadow at Corral Prairie - Trinity Summit 1524 Comment
  RSA254751  Potentilla glandulosa subsp. ashlandica D. E. Anderson 1972-6-13 5560 Humboldt Westward lower slopes of Black Lassic near Trinity County line. 1585 Comment
  RSA46469  Potentilla gracilis Doris K. Kildale 1927-7-10 3721 Humboldt Gans Prairie, Bald Hills. Comment
  HSC101969  Potentilla gracilis var. fastigiata M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 865 Humboldt Patterson Meadows 1566 Comment
  RSA246702  Potentilla palustris Robert F. Thorne 1965-8-7 35184 Humboldt Big Lagoon. 2 Comment
  HSC74648  Prosartes hookeri M. A. Baker 1980-5-17 1211 Humboldt Near Le Perron Peak 792 Comment
  HSC15462  Prosartes hookeri T. W. Beck 1963-5-10 46 Humboldt Camp Bauer, Korbel Comment
  HSC37366  Prosartes smithii Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 499 Humboldt Along Lost Man Creek. 38 Comment
  SBBG982  Prosartes smithii H. and M. Dearing 1933-5-16 256 Humboldt near Weott Comment
  HSC14302  Prunella vulgaris William J. Ferlatte, B. D. Rogers 1966-6-15 2093 Humboldt Near Bridgeville Comment
  HSC14311  Prunella vulgaris Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  HSC59239  Prunella vulgaris Clark L. Miller 1978-5-13 1130 Humboldt Comment
  UCLA49217  Prunella vulgaris H. Lewis 1940-7-3 Humboldt Founders Tree Humboldt State Park; , Founders Tree Comment
  RSA424589A  Prunella vulgaris var. lanceolata Bonnie C. Templeton 1931-10-15 s.n. Humboldt Eureka Comment
  UC1124437  Prunella vulgaris var. lanceolata H. L. Person 1931-7-30 Humboldt Fieldbrook; Eureka Quad. Comment
  UC1288489  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-12-29 688 Humboldt on Eel River s Meyer's Flat (Eagle Point); Eel River Comment
  UCLA85882  Prunella vulgaris var. lanceolata O. H. Kappler 1946-7-24 1371 Humboldt s of Humboldt Bay Loleta; s of Humboldt Bay Comment
  CAS-BOT-BC159987  Prunus emarginata Doris K. Kildale 1927-7-22 3813 Humboldt Lassecks Peaks 1661 Comment
  HSC55342  Prunus emarginata Griswold, Butler 1979-7-12 7200 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  POM89158  Prunus emarginata Joseph P. Tracy 1920-11-7 5410 Humboldt Around Humboldt Bay. Mad River at Lindsey Creek. 30 Comment
  UC1198770  Prunus emarginata Joseph P. Tracy 1920-4-18 5314 Humboldt around Humboldt Bay (Mad River, near bridge on Trinidad Road); Northern Coast Region, Mad River 15 Comment
  UC183749  Prunus emarginata Joseph P. Tracy 1913-6-17 4183 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  UC666845  Prunus emarginata Joseph P. Tracy 1934-9-5 13656 Humboldt Horse Mountain 1402 Comment
  UC666841  Prunus virginiana var. demissa Joseph P. Tracy 1940-5-17 16555 Humboldt Buck Mountain 762 Comment
  HSC5685  Pseudognaphalium californicum J. P. Tracy 1937-7-11 15415 Humboldt Vicinity of Garberville 122 Comment
  POM288759  Pseudognaphalium californicum Lyman Benson 1928-7-11 458 Humboldt Weott Ranger Station, Mt. Range: Seaward N Coast; Drainage Area: S Fork Eel River. 61 Comment
  UC1193111  Pseudotsuga menziesii P. Zinke 1950-8-3 145 Humboldt 3 mi s of Harris; Quad. 29D3 914 Comment
  HSC30338  Pseudotsuga menziesii var. menziesii Dale R. Gradek 1974-5-2 34 Humboldt 0.25 mi N of intersection of Dows Prairie Rd. and Grange Rd. Comment
  HSC70640  Pseudotsuga menziesii var. menziesii R. York 1980-5-18 593 Humboldt Near Black Mtn. 792 Comment
  JEPS48426  Pseudotsuga menziesii var. menziesii W. L. Jepson 1936-8-7 17858 Humboldt Butte Creek (upper) Bear Buttes, Butte Creek Comment
  OBI36540  Pseudotsuga menziesii var. menziesii David J. Keil 1983-7-2 17338 Humboldt Horse Mtn Summit SW of Willow Crk Comment
  HSC55030  Pteridium aquilinum var. pubescens Walter Overton, Butler 1979-7-31 11466 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC36274  Pteridium aquilinum var. pubescens John Rehling 1974-7-8 11 Humboldt Along Bald Hills Rd. 23.5 mi. from Hwy. 101 Comment
  HSC17970  Pyrola asarifolia subsp. bracteata J. Wendell Howe 1930-6-28 Humboldt Kneeland Prairie, edge of Redwood Belt Comment
  HSC45427  Pyrola crypta Thomas W. Nelson, Jane Nelson 1977-6-19 3502 Humboldt Along ridge N of pond above Alder Springs 1585 Comment
  HSC44342  Pyrola dentata Brad Klipfel 1975-6-17 687 Humboldt Horse Mtn. Comment
  UC1197577  Pyrola picta Joseph P. Tracy 1933-7-25 12876 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  CAS-BOT-BC466035  Pyrola picta Milo S. Baker 1947-8-10 11908 Humboldt Near end of Forest Rd from Hoopa toward Trinity Summit 1371 Comment
  SFV18591  Pyrola picta T. W. Nelson, J. P. Nelson 1987-6-11 8569 Humboldt Along an unnumbered branch road off USFS Road 11H21. Comment
  UC1222292  Quercus chrysolepis Joseph P. Tracy 1950-8-4 19256 Humboldt at head of Canoe Creek, summit of ridge ne of the lookout station, Grasshopper Peak, in Bull Creek State Park Bull Creek State Park, Grasshopper Peak, Canoe Creek Comment
  UCD45382  Quercus chrysolepis Lincoln Constance 1934-6-15 885 Humboldt Summit of Grasshopper Peak; el. C. 3200 ft. Bull Creek Region. South Fork Eel River, Humboldt County, California. 1158 Comment
  SEINET10970825  Quercus chrysolepis Jones 1985-6-6 Jones 112 Humboldt T34n,r4e,sec.14. Titlow rd. Ca 8 miles s off hwy. Pinus, arbutus, querus Chrysolepis, quercus vaccinifolia habitat 1143 Comment
  UCD46112  Quercus garryana var. garryana Joseph P. Tracy 1924-10-12 6915 1/2 Humboldt Trinity River Valley, near the South Fork. 182 Comment
  OBI36337  Quercus kelloggii David J. Keil 1983-7-1 17274 Humboldt Ca. 13 mi W of jctn US 101 along Bull Creek Flats rd Comment
  RSA624390  Quercus kelloggii Louis C. Wheeler 1952-9-14 6931 Humboldt [No location information on label.] Comment
  UCD47218  Quercus sadleriana D. Sanchez-Mata 1997-9-20 s.n. Humboldt Hoopa. Big Hill Lookout Road. Successional shrubland plant communitites on logged Douglas fir forests. 1230 Comment
  HSC98273  Quercus vacciniifolia Blaze Baker, Matthew Barmann, Michael Max Hentz 1993-4-30 2 Humboldt Horse Mtn. near the radio towers on the uphill side of 6N36 1510 Comment
  HSC81826  Ranunculus alismifolius var. hartwegii Thomas W. Nelson 1979-7-11 5009 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  UC118296  Ranunculus aquatilis var. hispidulus W. W. Price 1890-7-1 Humboldt near Jarnigans; Mad River Comment
  POM269622  Ranunculus flammula var. ovalis Joseph P. Tracy 1934-7-13 13390 Humboldt Dow's Prairie Comment
  RSA183644  Ranunculus hebecarpus D. E. Anderson 1965-5-8 3628 Humboldt 0.6 miles west of bridge over North Fork of Mad River, along Highway 299 Comment
  UC1196217  Ranunculus occidentalis Joseph P. Tracy 1899-3-15 4 1/2 Humboldt Eureka; in garden Comment
  HSC102107  Ranunculus occidentalis var. occidentalis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1010 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC102517  Ranunculus occidentalis var. occidentalis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1504 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC45624  Ranunculus occidentalis var. occidentalis Diane L. Reed 1978-4-22 11 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC73606  Ranunculus occidentalis var. occidentalis M. A. Baker 1980-7-22 3118 Humboldt Near Grogan Hole. 1676 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
  SDSU10120  Ranunculus orthorhynchus Leslie Hickson 1990-4-15 15 IV90A Humboldt 38 Apple Valley Lane in the northwest corner of the pasture. Comment
  UC249694  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1921-4-24 5477 Humboldt Englewood Prairie Northern Coast Ranges, Eel River (along river from South Fork to Scotia) 60 Comment
  HSC39607  Ranunculus orthorhynchus var. platyphyllus Thomas W. Nelson, James Nelson 1976-7-28 3081 Humboldt W of Alder Springs. 1524 Comment
  HSC98760  Ranunculus orthorhynchus var. platyphyllus Cara Witte 2008-7-2 824 Humboldt Board Camp Mountain. Forest Service Rd. 4N38. Approximately 1 mile south of 4N38 and National Forest 1 intersection. 1416 Comment
  UC1103015  Ranunculus parviflorus Harry B. Tucker 1933-6-13 Humboldt near Ferndale 15 Comment
  CDA3497  Ranunculus parviflorus E. C. Whitney 1962-5-29 Humboldt Millsap property, Pepperwood. 0 Comment
  RSA399439  Ranunculus repens R. S. Woglum 1938-8-29 2036 Humboldt State Park Grounds, S of Trinidad. Comment
  HSC56305  Ranunculus uncinatus Overton, Butler 1979-8-2 12613 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC31570  Ranunculus uncinatus var. parviflorus Glenn McGourty 1974-5-11 40 Humboldt Timber trail off Maple Creek Rd. in Kneeland Comment
  HSC26768  Raphanus raphanistrum Thomas W. Nelson 1970-12-5 317 Humboldt Eureka, 3300 block of Williams St. Comment
  RSA167446  Rhamnus californica Joseph P. Tracy 1950-6-18 18848 Humboldt Near Petrolia, Hills betw town and Ocean Comment
  UC1197986  Rhamnus californica Joseph P. Tracy 1918-9-29 5111 Humboldt Myer's Ranch Northern Coast Ranges, South Fork Eel River 60 Comment
  UC203996  Rhamnus californica subsp. californica Joseph P. Tracy 1918-7-5 5011 Humboldt White Thorn Valley Northern Coast anges 304 Comment
  UC592714  Rhamnus californica subsp. californica Carl B. Wolf 1934-6-30 Humboldt back of Shelter Cove 60 Comment
  CDA35698  Rhamnus californica subsp. occidentalis T. R. Gallion 1960-7-7 Humboldt Weitchpec. 0 Comment
  JEPS41952  Rhamnus purshiana W. L. Jepson 1902-7-15 2032 Humboldt Mud Spring to Trinity Summit 1219 Comment
  RSA355693  Rhamnus purshiana Walter Wisura, Dave Kelly 1986-7-30 4134 Humboldt N of Crannel, on Lousiana Pacific Lumber Co. property, ca. 6 mi beyond the gate, beyond the nursery area, at edges of opening in Redwood forest. Comment
  CAS-BOT-BC56607  Rhododendron macrophyllum Joseph P. Tracy 1906-6-10 2489 Humboldt Kneeland Prairie Road, region about Humboldt Bay 609 Comment
  HSC33060  Rhododendron macrophyllum Thomas W. Nelson 1974-5-7 1239 Humboldt Old Kneeland Rd. Comment
  UC562739  Rhododendron macrophyllum Joseph P. Tracy 1936-8-24 15180 Humboldt 6 mi se of Arcata (Fickle Hill); Fickle Hill 609 Comment
  HSC97939  Rhododendron occidentale Cara Witte 2007-6-19 290 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1289 Comment
  UC1173683  Rhododendron occidentale Joseph P. Tracy 1939-7-9 16319 Humboldt Bald Mountain, at Lake Prairie Lake Prairie; Bald Mountain, Lake Prairie 1066 Comment
  UC562737  Rhododendron occidentale Joseph P. Tracy 1929-7-4 8609 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC200380  Rhododendron occidentale var. paludosum Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway Comment
  CAS-BOT-BC200390  Rhododendron occidentale var. paludosum Carl B. Wolf 1927-8-28 1174 Humboldt On the grade 9 mi. from Willow Creek, Lord Ellis Road to Blue Lake Comment
  CAS-BOT-BC433130  Ribes Doris K. Kildale 1927-5-15 3298 Humboldt Petrolia Comment
  HSC102638  Ribes binominatum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1622 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC99095  Ribes binominatum Cara Witte 2008-7-28 944 Humboldt Buck Flat. Near intersection of National Forest 1 and Forest Service Road 5N01. 1591 Comment
  CAS-BOT-BC108910  Ribes divaricatum var. pubiflorum Doris K. Kildale 1927-6-28 3607 Humboldt Lower Mad River near Covered Bridge on Redwood Highway. Comment
  HSC56148  Ribes lacustre G. L. Clifton, Griswold 1979-8-1 11990 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UC1586907  Ribes lacustre Juha Pykala and D. H. Norris 1987-6-11 1589 Humboldt s North Trinity Mountain (w of Crogan Hole); North Trinity Mountain Wilderness Area 1550 Comment
  RSA0021102  Ribes lacustre Thomas W. Nelson, Jane P. Nelson 1977-6-19 3490 Humboldt [Mount] Lassic. 1616 Comment
  HSC97310  Ribes laxiflorum M. Mesler 2007-5-23 744 Humboldt Near Trinidad, trail from Mill Creek to Elk Head, along the creek near the beach. 23 Comment
  UC1198925  Ribes lobbii Joseph P. Tracy 1936-8-8 15139 Humboldt ne Hawkins Bar.; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC673202  Ribes lobbii Lincoln Constance, Reed C. Rollins 1942-5-11 2864 Humboldt 8 mi e Blue Lake (near summit); North Coast Ranges Comment
  CAS-BOT-BC212477  Ribes marshallii Joseph P. Tracy 1932-7-15 10592 Humboldt Ridges east of Corral Prairie, Trinity Summit, Klamath Mountains 1828 Comment
  LA205539  Ribes marshallii Joseph P. Tracy; 1932-7-15 10592 Humboldt Klamath Mountains, Trinity Summit. ridges E of Corral Prairie 1828 Comment
  CAS-BOT-BC206045  Ribes menziesii L. R. Abrams 1916-7-11 6033 Humboldt Mouth of Grizzly Creek on Van Duzon [Duzen] River Comment
  HSC20312  Ribes menziesii R. E. Thill 1965-5-1 25 Humboldt 0.25 mi. from Korbel on the Camp Bauer Rd. Comment
  BLMAR117  Ribes roezlii var. amictum Jennifer Anthony-Wheeler 1995-3-15 117 Humboldt King range, growing at far N end of Honeydew campground-open grassy floodplain 115 Comment
  CAS-BOT-BC198868  Ribes roezlii var. amictum Volney Rattan 1880-1-1 s.n. Humboldt Unspecified Comment
  BLMAR596  Ribes roezlii var. cruentum Jennifer Wheeler 2010-9-14 596 Humboldt Lacks Creek, along Pine Ridge Road 975 Comment
  JEPS49463  Ribes roezlii var. cruentum Joseph P. Tracy 1922-4-30 6041 Humboldt Three Creek 670 Comment
  CAS-BOT-BC212525  Ribes sanguineum J. 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. 1371 Comment
  SBBG27512  Ribes sanguineum L. Constance, R. C. Rollins 1942-5-11 Humboldt near summit 8 mi E of Blue Lake Comment
  CAS-BOT-BC144685  Ribes sanguineum var. glutinosum Elmer I. Applegate 1923-9-12 3991 Humboldt Stone Lagoon, south of Orick Comment
  UC902086 Image available Ribes sanguineum var. glutinosum Joseph P. Tracy 1949-4-10 18281 Humboldt North Coast Ranges, Redwood Creek, at Berry's Redwood Creek; North Coast Ranges, Redwood Creek 365 Comment
  CAS-BOT-BC144695  Ribes sanguineum var. glutinosum H. E. McMinn 1922-8-4 340 Humboldt along Van Dusen River Comment
  BLMAR270  Ribes sanguineum var. sanguineum Jennifer Anthony-Wheeler 1999-7-30 270 Humboldt Lacks Creek, growing in Hupa mt quad 1219 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
  CHSC97983  Ribes viscosissimum April A. Allard; Gregory D. O'Connell 2005-6-15 13 Humboldt NE of Grouse Mtn. Roadside. 5339 Comment
  HSC56007  Ribes viscosissimum Overton, Butler 1979-7-31 11475 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC47612  Rigiopappus leptocladus J. P. Smith 1977-4-23 9027 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  UC166087  Rigiopappus leptocladus Joseph P. Tracy 1911-7-7 3405 Humboldt between Willow Creek and Campbell Creek (viz ridge n of Willow Creek near the summit); Northern Coast Ranges, Brannan Mountain 914 Comment
  JEPS1248  Romanzoffia californica Joseph P. Tracy 1923-4-29 6196 Humboldt Kneeland Prairie 762 Comment
  UC673227  Romanzoffia californica Lincoln Constance and Reed C. Rollins 1942-5-11 2870 Humboldt 3 mi. e. E. Fork Willow Creek; North Coast Ranges Comment
  UC492263  Rorippa curvisiliqua Joseph P. Tracy 1931-9-7 9667 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC492261  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
  UC1199034  Rosa Joseph P. Tracy 1949-8-7 18438 1/2 Humboldt near Box Camp; Trinity Summit 1524 Comment
  HSC19645  Rosa canina Francis Winter 1960-4-24 Humboldt 1 mi. S of Hoopa Indian Reservation along Hoopa-Willow Creek Hwy. 152 Comment
  CAS-BOT-BC146477  Rosa gymnocarpa John McLaren 1920-9-1 s.n. Humboldt unspecified Comment
  CAS-BOT-BC146486  Rosa gymnocarpa L. B. Kildale 1930-7-11 10334 Humboldt Snow Camp, head of Redwood Creek Comment
  JEPS47242  Rosa gymnocarpa Lincoln Constance 1934-6-2 791 Humboldt Bull Cr. road to mouth of Bull Cr. (and up creek); South Fork Eel River, Bull Creek region Comment
  RSA166375  Rosa gymnocarpa Robert F. Thorne 1957-9-2 18999 Humboldt Burlington State Park, just S of Weott. Comment
  HSC98694  Rosa gymnocarpa var. gymnocarpa Cara Witte 2007-6-5 213 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1 mile south of intersection with 5N04. 1434 Comment
  CAS-BOT-BC146843  Rosa nutkana Carl B. Wolf 1931-8-28 2364 Humboldt 1/8 mile from Rohnerville on the road to Fortuna 30 Comment
  CHSC31292  Rosa pinetorum Mark Stopher 1980-7-11 115 Humboldt Along Elk River near Hwy 101 bridge. Comment
  CAS-BOT-BC148344  Rosa pisocarpa Joseph P. Tracy 1949-8-7 18436 Humboldt Trinity Summit, near Box Camp in open fir timber. 1524 Comment
  UC154203  Rosa pisocarpa Joseph P. Tracy 1908-6 2873 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC71715  Rubus leucodermis M. A. Baker 1980-6-26 2436 Humboldt Near Sims Creek 610 Comment
  HSC98453  Rubus leucodermis Gail Newton 1980-8-10 2054 Humboldt Near Blake Mtn. 1707 Comment
  UC467839  Rubus leucodermis P. E. Goddard 1906-6 673 Humboldt Lasseck Pk. Lasseck Pk Comment
  UC666865  Rubus leucodermis Joseph P. Tracy 1937-7-24 15532 Humboldt in fir woods near Grizzly Camp (head of Little Hors Linto Creek); Trinity Summit, head of Little Hors Linto Creek 1371 Comment
  HSC19660  Rubus parviflorus D. B. Bader 1963-2-17 11 Humboldt Second of the Clam Beach Lagoons W. of Hwy.101 Comment
  HSC19661  Rubus parviflorus D. A. Shally 1965-5-15 53 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  HSC19663  Rubus parviflorus A. E. Inman 1962-5-25 Humboldt Mad River, S bank; 100 yards west of Hwy. 299 bridge Comment
  HSC19665  Rubus parviflorus Harvey Doerksen 1962-5-22 25 Humboldt 1/4 mi. N Azalea Reserve State Park, floodplain of Mad River Comment
  HSC57020  Rubus parviflorus Overton, Butler 1979-7-24 9632 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC79508  Rubus parviflorus Kenneth Clark 1980-4-18 589 Humboldt Shelter Cove. On lower alluvial terrace of Dead Man's Gulch 24 Comment
  NY1043368  Rubus parviflorus D. K. Gillespie 1938-8-6 15397 Humboldt Eureka Comment
  UC666863  Rubus parviflorus Joseph P. Tracy 1937-5-17 15299 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  UC1301222  Rubus spectabilis Paul C. Hutchison 1966-5-26 2741 Humboldt near U.S. highway 101 (Prairie Creek Redwood Grove State Park); Prairie Creek Redwood Grove State Park 50 Comment
  HSC19694  Rubus ursinus Lincoln Constance 1934-5-29 727 Humboldt Upper Look Prairie; South Fork Eel River 366 Comment
  HSC31460  Rubus ursinus Steve Selva, Roger Jensen 1974-8-28 90 Humboldt Approx. 10 mi. S of Arcata on the sand dunes of the Samoa Peninsula Comment
  HSC32238  Rubus ursinus J. O. Sawyer 1970-6-24 2256 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  HSC89583  Rubus ursinus M. Roantree 1985-4-25 5 Humboldt E side of Trinidad Head. Comment
  HSC96515  Rubus ursinus Gordon Leppig 1998-5-11 762 Humboldt Big Lagoon County Park. 3 Comment
  UC1128669  Rubus ursinus R. Stahelin 1933-5-15 19521 Humboldt Freshwater Eureka Quad. Comment
  UCD17622  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 042 Humboldt California. Humboldt County: 6.3 miles east of Ettersburg on road from Briceland. Comment
  HSC48031  Rumex acetosella Brad Klipfel 1974-5-27 404 Humboldt Horse Mtn. Comment
  HSC90648  Rumex crispus Gail Newton 1982-6-10 3611 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC79366  Rumex crispus Kenneth Clark 1980-5-10 649 Humboldt Shelter Cove, Point Delgada, on access trail to Western Beach 6 Comment
  UC1191278  Rumex maritimus Malcolm A. Nobs and S. Galen Smith 1949-8-11 1338 Humboldt e shore Stone Lagoon Comment
  HSC99552  Rumex obtusifolius K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 217 Humboldt Near North Trinity Mtn, 11. 5 mi E of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CAS-BOT-BC433754  Rumex pulcher W. R. Dudley 1899-1-1 s.n. Humboldt Arcata Comment
  UC176683  Rumex pulcher Joseph P. Tracy 1912-6-9 3645 Humboldt Alton Northern Coast Region 30 Comment
  HSC95362  Rumex salicifolius var. transitorius Andrea Pickart 2002-8-8 200 Humboldt Arcata bottoms, Lanphere Rd. near end 20 Comment
  UC672874  Ruppia maritima Joseph P. Tracy 1938-7-15 16079 Humboldt Mouth of Eel River 3 Comment
  CAS-BOT-BC132666  Salix A. T. Whittemore 1980-3-15 80 -007 Humboldt Arcata, in residential area, along Alliance Road from Foster Ave. to the railroad tracks Comment
  CAS-BOT-BC132711  Salix A. T. Whittemore 1980-3-15 80 -005 Humboldt Arcata, in residential area, along Alliance Road from Foster Ave. to the railroad tracks Comment
  CAS-BOT-BC103819  Salix exigua Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01245 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  CAS-BOT-BC107743  Salix hookeriana Joseph P. Tracy 1936-2-23 14772 Humboldt Bank of Eel River - Fortuna 15 Comment
  CAS-BOT-BC107771  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1226 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  CHSC9657  Salix hookeriana E. L. Smith 1971-8-18 1027 Humboldt Clam Beach County Park ca. 6 mi s of Trinidad. Comment
  CHSC9659  Salix hookeriana E. L. Smith 1971-8-17 1029 Humboldt Between highway and beach at Trinidad. Comment
  HSC40879  Salix hookeriana Linda M. Barker 1976-6-14 1599 Humboldt 3 mi. W of Arcata, Lanphere-Christensen Dunes Comment
  HSC59397  Salix hookeriana Rick Lundquist 1979-4-27 44 Humboldt N spit along Samoa Rd., across from Samoa boat ramp 0 Comment
  HSC60288  Salix hookeriana Phyllis Krieg 1979-4-21 Humboldt Clam Beach Lagoon, E of Hwy. 101 0 Comment
  HSC90466  Salix hookeriana Jean Hanson 1980-3-8 31 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  JEPS13092  Salix hookeriana Joseph P. Tracy 1936-2-23 14773 Humboldt Fortuna; bank of Eel River 15 Comment
  LA208762  Salix hookeriana Harold E.; Susan T. 1932-4-7 1103 Humboldt Little River Lagoon, Trinidad; at sea level Comment
  POM184870  Salix hookeriana H. E. Parks, Susan T. Parks 1932-4-7 1103 Humboldt Little River Lagoon. Trinidad. At sea level. 0 Comment
  UC481346  Salix hookeriana Harold E. Parks 1931-5-12 952 Humboldt Samoa Humboldt Bay, Samoa Comment
  UC481379  Salix hookeriana Harold E. Parks and J. P. Tracy 1931-3-26 905 Humboldt on Van Duzen R. Alton; Van Duzen R., Alton 15 Comment
  UC490472  Salix hookeriana Joseph P. Tracy 1932-9-5 10771 Humboldt Mattole River near Petrolia; North Coast Region 15 Comment
  UC506401  Salix hookeriana Joseph P. Tracy 1933-4-9 10931 Humboldt Blue Slide Northern Coast Ranges, Van Duzen River (below Blue Slide bridge on open gravel bar) 91 Comment
  UC512097  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1212 Humboldt 1 mi n Samoa (pine barrens near coast) Comment
  UC512099  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1210 b Humboldt 4 1/2 mi s Trinidad; Little River Lagoon Comment
  UC518898  Salix hookeriana Jim Davis Apr 25 1933-Apr 27 1933 4 Humboldt around Eureka Comment
  POM219699  Salix hookeriana var. tomentosa H. E. Parks 1931-5-12 955 Humboldt Samoa. Humboldt Bay. Near sea level. 0 Comment
  UC1173614  Salix laevigata Joseph P. Tracy 1935-6-22 13960 Humboldt mouth of Larrabee Creek (on Eel River); Eel River 45 Comment
  CAS-BOT-BC125228  Salix lasiandra var. lasiandra Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 01206 Humboldt Little River Lagoon, 4 1/2 miles south of Trinidad, elevation approximately sea level Comment
  UC1196619  Salix lasiolepis Joseph P. Tracy 1933-7-20 12807 Humboldt Mad River, near Blue Lake 15 Comment
  UC1196659  Salix lasiolepis Joseph P. Tracy 1932-5-17 10078 Humboldt Willow Creek North Coast Ranges, Trinity River 152 Comment
  UC470409  Salix lasiolepis Joseph P. Tracy 1931-9-19 9675 Humboldt Alton Northern Coast Region 30 Comment
  UC490537  Salix lasiolepis Joseph P. Tracy 1932-7-18 10714 Humboldt head of Brett Hole; Klamath Mts., Trinity Summit 1828 Comment
  UC490542  Salix lasiolepis H. E. Parks and Joseph P. Tracy 1932-8-13 10343 Humboldt 3 mi. e. Trinidad (on Luffenholz Creek); Northern Coast Region, Luffenholz Creek 60 Comment
  UC504021  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1254 Humboldt 2 mi E of Redwood Highway ( Mad River at Engelhart gravel pit, above Blue Lake) Comment
  UC504025  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1319 Humboldt Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  UC506396  Salix lasiolepis Joseph P. Tracy 1932-10-8 10865 Humboldt Berry's Mt. Northern Coast Ranges (on Trinity Hwy) 762 Comment
  UC506403  Salix lasiolepis Joseph P. Tracy 1932-6-4 10127 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC506405  Salix lasiolepis Joseph P. Tracy 1932-10-2 10859 Humboldt near Bair's; Northern Coast Ranges, Redwood Creek 213 Comment
  UC519327  Salix lasiolepis Joseph P. Tracy 1933-5-14 12178 Humboldt mouth of Willow Creek Trinity River Valley 152 Comment
  UC519329  Salix lasiolepis Joseph P. Tracy 1933-5-14 12181 Humboldt Willow Creek, near county road bridge Trinity River Valley 152 Comment
  UC519350  Salix lasiolepis Joseph P. Tracy 1933-11-12 13116 Humboldt along S. Fork Eel R. Miranda; North Coast Ranges, S. Fork Eel R. 91 Comment
  UCSB10872  Salix lasiolepis Parks, Harold; Parks, Susan 1931-8-15 Humboldt Blue Slide, Van Duzen River 100 Comment
  CAS-BOT-BC107289  Salix lasiolepis var. bigelovii Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-17 01333 Humboldt in channel of Trinity River, near bridge on Trinity Highway 152 Comment
  CAS-BOT-BC107299  Salix lasiolepis var. bigelovii Harold E. Parks; Joseph P. Tracy 1931-5-17 0976 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CHSC9644  Salix lucida subsp. lasiandra E. L. Smith 1971-8-17 1015 Humboldt South fork of Trinity River on Hwy 299 at Sayler. 487 Comment
  POM219248  Salix lucida subsp. lasiandra H. E. Parks, Susan T. Parks 1931-8-15 1078 Humboldt Blue Slide. Van Duzen River. 100 Comment
  POM362660  Salix lucida subsp. lasiandra H. E. Parks, Susan T. Parks 1932-5-12 1150 Humboldt Near bridge at mouth of Maple Creek. Big Lagoon. Comment
  CAS-BOT-BC125615  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
  CAS-BOT-BC125624  Salix melanopsis Harold E. Parks 1931-5-28 01027 Humboldt Little River Lagoon, at sea level Comment
  UC1196639  Salix melanopsis Joseph P. Tracy 1932-8-27 10756 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R. 30 Comment
  UC490562  Salix melanopsis Joseph P. Tracy 1932-5-1 9875 Humboldt vicinity of R. Garberville Garberville; Northern Coast Ranges, Garberville 121 Comment
  UC726592  Salix melanopsis A. A. Heller 1923-7-10 13796 Humboldt between Scotia and Pepperwood (Eel R.); Eel R. Comment
  RSA0034666  Salix melanopsis var. bolanderiana H. P. Bracelin 1931-5-2 283 Humboldt East of Redwood Highway, 6 km. south of Alton. 20 Comment
  RSA0005850  Salix parksiana H. E. Parks 1931-5-14 962 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  CAS-BOT-BC129128  Salix scouleriana A. T. Whittemore 1979-4-5 79 -012 Humboldt Arcata, cleared field along Alliance Road immediately north of Arcata High School 6 Comment
  JEPS13084  Salix scouleriana Joseph P. Tracy 1936-2-2 14767 Humboldt vicinity of Carlotta 30 Comment
  POM280931  Salix scouleriana Lyman D. Benson 1929-7-15 1823 Humboldt Weott Ranger Station. Comment
  UC481358  Salix scouleriana Harold E. Parks 1931-5-14 957 Humboldt Little Larabee Bridge Van Duzen R. 450 Comment
  UC54926  Salix scouleriana J. P. Tracy 1901-2-3 991 Humboldt immediate vicinity Eureka 0 Comment
  HSC20116  Salix sitchensis Theodore J. Crovello 1965-4-8 669 Humboldt Along Lost Man Creek at junction with Hwy. 101, 2.5 mi. S of turnoff to Prairie Creek Redwoods State Park Comment
  HSC59689  Salix sitchensis Marla J. Carollo 1979-5-4 61 Humboldt Clam Beach Lagoon, near Little River Beach, adjacent to Hwy. 101 Comment
  POM161040  Salix sitchensis Joseph P. Tracy 1926-12-5 7833 Humboldt Blue Slide on van Duzen River. 91 Comment
  UC1196716  Salix sitchensis Joseph P. Tracy 1926-2-21 7362 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC1199054  Salix sitchensis Joseph P. Tracy 1938-7-31 16088 Humboldt head of Willow Creek (along Trinity Hwy.); Willow Creek Canyon, Willow Creek 762 Comment
  UC490489  Salix sitchensis Joseph P. Tracy 1932-5-10 9955 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC512013  Salix sitchensis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1230 Humboldt 1 1/2 mi. e. Alton (on ... floodplain of Van Duzen R.); Van Duzen R. 30 Comment
  UC1196609  Salix tracyi Joseph P. Tracy 1934-9-30 13680 Humboldt Van Duzen River at Bridgeville 198 Comment
  UC504017  Salix tracyi C. R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1244 Humboldt Van Duzen River at Blue Slide 91 Comment
  UC504019  Salix tracyi C. R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1244 Humboldt Van Duzen River at Blue Slide 91 Comment
  UC526722  Salix tracyi Joseph P. Tracy 1934-3-25 13166 Humboldt Blue Slide, on Van Duzen River 91 Comment
  UC602515  Sambucus mexicana Joseph P. Tracy 1930-7-19 9088 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC57090  Sambucus nigra subsp. caerulea Overton, Butler 1979-7-24 9804 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC76248  Sambucus nigra subsp. caerulea Denis Kearns 1981-7-23 400 Humboldt Near Whiteys Peak. 1524 Comment
  HSC59500  Sambucus racemosa var. racemosa M. A. Ericksen 1979-4-6 202 Humboldt 880 Central Ave. McKinleyville. Comment
  UC154205  Sanguisorba annua Joseph P. Tracy 1908-6 2816 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC19724  Sanguisorba minor D. E. Anderson 1963-5-25 2491 Humboldt Ca. 2 mi. S of Capetown Comment
  UC180212  Sanguisorba officinalis subsp. microcephala Joseph P. Tracy 1914-9-6 4602 Humboldt Bald Mountain, between High Prarie and Snow Camp Northern Coast Ranges 1219 Comment
  CHSC52919  Sanicula arctopoides L. P. Janeway 1984-4-11 728 Humboldt On the North Spit of Humboldt Bay; northwest of the boat ramp and north of the Coast Guard Sta. 4 Comment
  HSC89430  Sanicula arctopoides P. A. Daly 1984-5-8 9 Humboldt Trinidad Head. 61 Comment
  HSC74223  Sanicula graveolens M. A. Baker 1980-7-19 3016 Humboldt Near Bret Hole. 1814 Comment
  OBI55124  Sanicula tracyi Joseph P. Tracy 1947-6-25 17717 Humboldt Dinsmore's along Van Duzen Rivers opposite Black Mtn 762 Comment
  HSC69867  Sanicula tuberosa Thomas W. Nelson 1978-5-28 4095 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  HSC71008  Sanicula tuberosa J. M. DiTomaso 1981-5-15 2009 Humboldt Larabee Valley, 10 mi. E of Bridgeville on Hwy. 36 Comment
  HSC96245  Sanicula tuberosa M. Lindquist, C. Riley 2005-6-3 3 Humboldt 19.3 mi. S of Hwy. 299 on NF 1 1205 Comment
  HSC101026  Sanicula tuberosa Jenny Moore 2007-6-14 29 Humboldt Pilot Creek Watershed, west of South Fork Mountain, Dan East Trail (5E14). 976 Comment
  HSC98998  Sanicula tuberosa Cara Witte 2008-7-10 856 Humboldt Brays Opening on National Forest 1. 0.5 mi. north of intersection with Forest Service Road 4N38. 1393 Comment
  HSC74198  Saxifragopsis fragarioides M. A. Baker 1980-7-23 3145 Humboldt Near Orleans Mtn. 1859 Comment
  CDA43206  Scandix pecten-veneris Richard R. Halse 2015-3-26 9381 Humboldt Along U.S. Hwy. 101 ca 2.4 miles southwest of Weott. Comment
  CAS-BOT-BC111334  Schoenoplectus acutus var. occidentalis LeRoy Abrams; R. C. Bacigalupi 1922-6-25 8272 Humboldt Big Lagoon south of Orick Comment
  SEINET3913367  Schoenoplectus pungens var. badius J. D. Ackerman 1975-6-10 465 Humboldt About 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila. Humboldt Bay.; 0 Comment
  HSC58384  Scirpus congdonii Terry Griswold 1979-7-25 10920 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1784 Comment
  CAS-BOT-BC361311  Scoliopus bigelovii Richard R. Halse 2013-3-28 8766 Humboldt Along U.S. Hwy. 101 ca. 2.2 miles S of Exit 671 to Pepperwood 76 Comment
  CAS-BOT-BC517413  Scoliopus bigelovii Doris K. Kildale 1927-3-19 2903 Humboldt Luffenholtz Creek near Trinidad Comment
  UC582594  Scrophularia californica Joseph P. Tracy 1937-7-30 15565 Humboldt 6 mi se Arcata (Fickle Hill) 609 Comment
  POM126381  Scutellaria antirrhinoides P. E. Goddard 1907-6-16 b. 127 Humboldt Van Duzen Comment
  UC577335  Scutellaria antirrhinoides Joseph P. Tracy 1937-7-24 15520 Humboldt head of Devil'sw Hole (Trinity Summit); , Devil'sw Hole 1676 Comment
  SD29268  Scutellaria californica Lincoln Constance 1934-6-27 936 Humboldt On south side of Eel River near its junction with the south fork, at end of railroad bridge, 0.5 mile northwest of s. fork P. O. and R. R. Station. Comment
  CDA41033  Scutellaria siphocampyloides B. F. Kemp 1958-7-5 838 -58 Humboldt Knight Ranch, 4 miles north of Willow Creek. 0 Comment
  RSA178561  Sedum divergens Joseph P. Tracy 1950-8-8 19294 Humboldt Croghan Hole, on Trinity Summit Comment
  HSC99057  Sedum laxum subsp. flavidum Cara Witte 2008-7-11 873 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  HSC79346  Sedum laxum subsp. heckneri D. K. Imper 1983-6-17 Humboldt 1 mi. S of Cedar Camp (road to Mosquito Lake), on FS Rd. 12N12, also located along FS Rd. 12N12 4 mi. N 1159 Comment
  HSC82131  Sedum laxum subsp. heckneri D. K. Imper 1985-6-18 Humboldt N and S of Whiteys Peak 1707 Comment
  JEPS47745  Sedum laxum subsp. heckneri Wayne Roderick 1961-7-10 61 .989 Humboldt 6.6 mi n Orleans (Klamath River, 1.4 mi s of Siskiyou County line (Somesbar)); Klamath River, n of Orleans 152 Comment
  HSC56994  Sedum obtusatum subsp. retusum Overton, Butler 1979-7-24 9564 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  JEPS73714  Sedum spathulifolium L. R. Heckard with T. I. Chuang 1968-7-5 1988 Humboldt along Mail Ridge Road 4 1/2 mi n of its junction with the Harris Road (e of Garberville); e of Garberville Comment
  JEPS25686  Sedum spathulifolium P. C. Hutchison 1961-5-22 2012 Humboldt 1.1 mi s Berry Summit (on hiway US 299, on the road to Horse Mountain); s of Berry Summit, road to Horse Mountain 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
  SEINET10569166  Selaginella oregana Joseph P. Tracy 1933-2-19 Tracy 10903 Humboldt North Fork of Mad River, above Korbel. On rocks in sheltered places on river bank. 61 Comment
  UC211248  Selaginella oregana Joseph P. Tracy 1920-10-24 5407 Humboldt near Korbel; Northern Coast Ranges 60 Comment
  CAS-BOT-BC363808  Senecio integerrimus var. exaltatus Doris K. Kildale 1926-4-11 1763 Humboldt McLellan Mountain 822 Comment
  UC1223148  Senecio integerrimus var. major Joseph P. Tracy 1951-5-26 19509 Humboldt opposite Willow Creek; Trinity River Comment
  CDA7630  Senecio jacobaea E. C. Whitney 1964-8-12 Humboldt Zuber property, Orick. 0 Comment
  HSC36579  Senecio sylvaticus Thomas W. Nelson, James Nelson 1975-9-3 2197 Humboldt Above the junction of Maple Creek-Kneeland Rd. Comment
  SEINET11802649  Senecio sylvaticus J. P. Tracy 1949-1 18467 Humboldt S of crossing of powerline,E of headwaters of Redwood Creek, Kinsey Ridge, S from Grouse Mt., 2-6 mi 1280 Comment
  HSC57636  Senecio triangularis G. L. Clifton, Griswold 10794 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1814 Comment
  UCR37913  Senecio triangularis D. K. Imper 1982-7-23 1481 Humboldt near Onion Lake 1371 Comment
  UCD20172  Senecio triangularis J. M. Tucker 1948-9-3 1857 Humboldt Near junction of Friday Ridge road and Horse Mountain-Grouse Mountain Road. Comment
  HSC6134  Senecio vulgaris Paul Shields 1955-6-18 Humboldt H.S.C. campus Comment
  CAS-BOT-BC85840  Sequoia sempervirens Joseph P. Tracy 1926-2-21 7355 Humboldt Blue Slide, on Van Duzen River 91 Comment
  CHSC55650  Sequoia sempervirens Dennis W. Morris 1991-4-24 20 Humboldt 2 mi e of Humboldt State Univ. in Redwood Park. Coastal mountains. 115 Comment
  JEPS48274  Sequoia sempervirens Willis Corbitt 1931-4-8 Humboldt Scotia 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
  SEINET6727392  Sequoia sempervirens P. Lehenbauer 1854 Humboldt Near Eureka Comment
  POM182755  Sequoia sempervirens A. L. Bolton 1904-11-12 s.n. Humboldt Willits Comment
  UC602550  Sherardia arvensis Joseph P. Tracy 1933-6-13 12560 Humboldt Bair's; Redwood Creek 609 Comment
  UC170180  Sidalcea asprella subsp. nana Harley P. Chandler June, 1901 1466 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  UC180183  Sidalcea diploscypha Joseph P. Tracy 1914-5-14 4466 Humboldt Fort Seward Northern Coast Ranges, Fort Seward 121 Comment
  CAS-BOT-BC205577  Sidalcea malachroides F. H. Utech 1986-5-23 86 -399 Humboldt Ca. 3.0 mi NW of Petrolla on Mattole Road (Humboldt Co. hwy F3C) enroute to Capetown 80 Comment
  HSC73172  Sidalcea malviflora M. A. Baker 1980-5-18 1350 Humboldt Near Black Mtn. 792 Comment
  HSC35614  Sidalcea malviflora Thomas W. Nelson, B. Reinhardt 1975-7-30 2110 Humboldt Whiting Spring Comment
  JEPS79986  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1929-7-4 8626 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  HSC57355  Sidalcea malviflora subsp. nana Overton, Butler 1979-7-26 10047 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  HSC75946  Sidalcea malviflora subsp. nana Overton, Butler 1979-7-24 9725 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC46167  Sidalcea oregana subsp. eximia J. P. Smith, Steve Selva 1970-6-30 4122 Humboldt Comment
  HSC75493  Sidalcea oregana subsp. spicata J. O. Sawyer 1980-7-18 3635 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  RSA0074177  Sidalcea oregana subsp. spicata Joseph P. Tracy 1936-5-17 14812 Humboldt Fickle Hill, 6 miles Southeast of Arcata. 610 Comment
  HSC22032  Silene Richard Spjut 1971-5-8 1875 Humboldt 1 mi. up Friday Ridge Rd., 3 mi. E of Willow Creek Comment
  UC14437  Silene antirrhina Chestnut and Drew 1888-7-9 Humboldt Kneeland Comment
  JEPS50977  Silene californica W. L. Jepson 1902-7-1 1962 Humboldt Hupa Road , Hupa Road (Redwood Creek) Comment
  UC1198362  Silene californica Joseph P. Tracy 1898-7-13 267 Humboldt near Hydesville; Northern Coast Region, near Hydesville 60 Comment
  SEINET10871683  Silene campanulata Imper 1983-7-6 IMPER s.n. Humboldt Six rivers national forest. T8n,r5e,sec.11. 2.5 Miles e of turnoff to big hill L.o., Hoopa indian reservation, roadside bank, petals pink, inforescence Glandular and pungent, serpintine influence, with knobcone, ceanothus Integerrimus, hickleberry, silene californica, holodescus spp., Arctostaphyllos Spp. 975 Comment
  CAS-BOT-BC384424  Silene coronaria Philip A. Munz 1952-6-27 17799 Humboldt Boise Creek Public Camp west of Willow Creek 365 Comment
  UCD98692  Silene gallica James Payne Smith Jr. 1970-6-7 3804 Humboldt 0.6 miles south of Luffenholtz Beach along California 1 near Trinidad. Comment
  HSC48475  Silene hookeri J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9932 Humboldt Six Rivers Natl. Forest, along Ishi Pishi Rd., 1.5 mi. from the Ishi Pishi Bridge over the Klamath River 305 Comment
  CAS-BOT-BC181262  Silene hookeri subsp. hookeri Doris K. Kildale 1929-3-26 9137 Humboldt Orleans, Klamath River 152 Comment
  HSC35749  Silene laciniata subsp. californica Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1993 Humboldt French Camp, 20 mi. E of Hwy. 101 Comment
  UC1198790  Sisymbrium altissimum Joseph P. Tracy 1933-6-25 12618 Humboldt 2 to 5 mi e of the South Fork (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  SD42554  Sisyrinchium californicum Carl B. Wolf 1937-8-10 2899 Humboldt Big Lagoon, bog at State Park. 6 Comment
  JEPS561  Smilacina racemosa Joseph P. Tracy 1938-7-7 16038 Humboldt Grouse Mountain 1524 Comment
  RSA424568  Solanum americanum T. S. Elias, Barbara A. Elias 1987-8-26 10629 Humboldt Fernbridge, 0.5 mile S of Route 101; along West bank of Eel River, about 0.5 mile N of bridge 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
  HSC59399  Solanum nigrum Rick Lundquist 1979-5-18 97 Humboldt Clam Beach Ponds 0 Comment
  HSC38086  Solanum parishii Thomas W. Nelson, James Nelson 1976-5-30 2607 Humboldt McKeown Ranch, N of Dinsmore. Comment
  SD42283  Solidago canadensis subsp. elongata Carl B. Wolf 1937-9-9 Humboldt north coast range, Wildcat Ridge, 6.3 mi S. of Ferndale. 305 Comment
  UC1223177  Solidago elongata Joseph P. Tracy 1949-8-11 18458 Humboldt Snow Camp 1402 Comment
  UC1541617  Solidago elongata H. E. and S. T. Parks 1930-9-14 785 Humboldt n shore Big Lagoon Comment
  UC479494  Solidago elongata Marcus E. Jones, A. M. 1931-7-12 29135 Humboldt Alton Comment
  CHSC423  Solidago spathulata M. Anthony 1960-5-1 Humboldt Coastal. Comment
  JEPS120527  Solidago spathulata B. Castro and L. P. Janeway 2004-9-10 1474 Humboldt North Coast. South Spit of Humboldt Bay, 2.2 mi NNE of Table Bluff Lighthouse site; on other side of South Spit Road from the Humboldt Bay mudflats. Comment
  RSA24389  Solidago spathulata C. B. Wolf 1941-2-22 9916 Humboldt Little River Beach State Park (north of Arcata). 8 Comment
  SEINET5782991 Image available Solidago spathulata S. K. Harris 1939-9-5 Humboldt Samoa Comment
  SEINET11383162 Image available Solidago spathulata S. K. Harris 1939-1 990 Humboldt At Samoa. Comment
  CHSC10128  Sonchus asper J. W. Johnson 1961-6-12 1410 Humboldt Samoa Peninsula. On a dune tongue between the foredunes, at Foredune 39. Comment
  CAS-BOT-BC374427  Sonchus asper Joseph P. Tracy 1932-6-4 10132 Humboldt Bridgeville 198 Comment
  HSC12548  Sonchus oleraceus C. Kline 1970-11-15 77 Humboldt 4.2 mi. N of Trinidad, olf Hwy. 101 Comment
  RSA85191  Sparganium angustifolium F. W. Peirson 1926-7-12 7042 Humboldt Humboldt County: Orick Comment
  RSA85195  Sparganium angustifolium subsp. emersum F. W. Peirson 1923-7-11 3642 Humboldt 20 miles north of Eureka. Comment
  CAS-BOT-BC235366  Spartina Avis Keedy 1988-9-18 8 Humboldt On Jolly Giant Creek near mouth Comment
  HSC83043  Spartina densiflora A. L. Eicher 1985-6-19 Humboldt Bordering Humboldt Bay, adjacent to the mouth of Mad River Slough, on SW side 1 Comment
  CDA35771  Spartina foliosa J. R. Keck Jr. 1987-10-28 PDR# 331439 Humboldt Humboldt Bay tidal zone near Somoa. 0 Comment
  HSC90774  Spergularia macrotheca var. macrotheca Gail Newton 1983-8-21 3857 Humboldt Elk River Wildlife Area, Eureka. Comment
  HSC95251  Spergularia macrotheca var. macrotheca Andrea Pickart 2002-6-27 125 Humboldt Mad River Slough and Dunes, N of parking lot area at N end of access road. 0 Comment
  HSC56168  Spergularia rubra G. L. Clifton, Griswold 1979-8-1 12059 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  CAS-BOT-BC390612  Spergularia rubra R. K. Gierisch; D. H. Esplin 1969-7-1 3536 Humboldt Six Rivers National Forest. Grouse Mtn. Comment
  CAS-BOT-BC149622  Spiraea douglasii G. A. Coleman 1901-7-20 s.n. Humboldt Near Arcata Comment
  UC1225876  Spiranthes porrifolia Joseph P. Tracy 1942-6-15 17154 Humboldt Garberville 152 Comment
  HSC62698  Spirodela polyrhiza Michelle Stevens 1979-5-18 120 Humboldt Ponds across from Clam Beach 0 Comment
  JEPS63029  Stachys ajugoides var. rigida Joseph P. Tracy 1937-6-20 15342 Humboldt Bear River 152 Comment
  UC577331  Stachys ajugoides var. rigida Joseph P. Tracy 1933-8-6 12944 Humboldt French Camp Ridge 1066 Comment
  UCLA71172  Stachys ajugoides var. rigida C. Epling, Wm. Robison 1935-7-22 Humboldt Patrick's Point Comment
  UC162688  Stachys ajugoides var. rigida Joseph P. Tracy 1911-7-11 3515 Humboldt hills along Supply Creek Northern Coast Ranges, Hoopa Valley 182 Comment
  HSC100512  Stachys bullata Carl C. Marshall May 1885 77 Humboldt Thickets, roadsides, etc. Comment
  POM92413  Stachys emersonii L. R. Abrams 1922-6-25 s.n. Humboldt 2 miles south of Fortuna Comment
  RSA447390  Stachys emersonii Bonnie C. Templeton 1964-6-13 10089 Humboldt Trinidad Head, near Lighthouse Point. Comment
  HSC45596  Stachys mexicana Diane L. Reed 1978-5-27 139 Humboldt 0.3 mi. up Bair Rd. from Hwy. 299 Comment
  UCLA71113  Stachys mexicana C. Epling, Wm. Robison 1935-7-22 Humboldt Patrick's Point Comment
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Aug 1 2016
  HSC54596  Stachys rigida Overton, Butler 1979-7-24 9672 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  RSA20782  Stachys rigida subsp. rigida Carl B. Wolf 1937-8-13 9246 Humboldt North Coast Range 11 mi. E. of Hoopa Valley on New Road towards Trinity Summit. 1524 Comment
  SD93012  Stachys rigida var. quercetorum W. Bertsch 1953-7-30 233 Humboldt Highway 101, 5 miles north of Arcata. Comment
  HSC57939  Stachys rigida var. rigida G. L. Clifton, Griswold 1979-7-31 11606 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC58159  Stachys rigida var. rigida G. L. Clifton, Griswold 1979-8-2 12219 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC4273  Stellaria media D. K. Smith 1968-1-16 2 Humboldt Bank of Crannell Rd. Comment
  HSC48033  Stellaria nitens Brad Klipfel 1974-5-27 407 Humboldt Horse Mtn. Comment
  UC1199362  Stephanomeria virgata subsp. pleurocarpa Joseph P. Tracy 1922-9-3 6112 Humboldt Bluff Creek, Klamath River Northern Coast Ranges, Klamath River 152 Comment
  HSC73045  Stipa lemmonii M. A. Baker 1980-7-19 3004 Humboldt Near Bret Hole. 1814 Comment
  JEPS118112  Streptanthus breweri Dean W. Taylor 2005-6-9 19339 Humboldt ridge dividing Swift Creek from Horse Creek, ca. 2 air miles SSE of Larabee Valley 853 Comment
  CAS-BOT-BC87616  Streptanthus tortuosus Richard Spellenberg 1965-6-14 1130 Humboldt South of airport, about 5 miles east of Kneeland. Comment
  HSC74748  Streptanthus tortuosus Gail Newton 1981-7-22 2260 Humboldt Near Bug Creek 1375 Comment
  UC1541457  Streptanthus tortuosus H. E. Parks June 1951 Humboldt Rock Pile Knneland Comment
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Jun 21 2013
  HSC57689  Streptopus amplexifolius G. L. Clifton, Griswold 1979-7-25 10908 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC17760  Stuckenia pectinata Rollin Sparrowe 1962-5-16 25 Humboldt S of road Comment
  CAS-BOT-BC269568  Symphoricarpos albus var. laevigatus Carl B. Wolf 1930-10-29 1782 Humboldt Old Coast Road at Honeydew Post Office 152 Comment
  UC602502  Symphoricarpos mollis Joseph P. Tracy 1936-6-28 15013 Humboldt near Murphy Meadows (Bald Mt); Bald Mt. 975 Comment
  HSC75958  Symphyotrichum bracteolatum Overton, Butler 1979-7-24 9740 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  CAS-BOT-BC99168  Symphyotrichum chilense L. R. Abrams 1927-8-31 12056 Humboldt Marshes along highway between Eureka and Arcata Comment
  CAS-BOT-BC99169  Symphyotrichum chilense L. R. Abrams 1927-8-31 12054 Humboldt Marshes along highway between Eureka and Arcata Comment
  HSC95386  Symphyotrichum chilense Andrea Pickart 2002-7-9 174 Humboldt Bracut Marsh in zone between brackish and riparian 10 Comment
  HSC96502  Symphyotrichum chilense Gordon Leppig 1998-8-23 1072 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  OBI17003  Symphyotrichum chilense Carl B. Wolf 1937-9-14 9355 Humboldt Redwood hwy 4 mi N of Loleta 8 Comment
  HSC75277  Symphyotrichum hendersonii J. O. Sawyer, D. A. Thornburgh 1980-9-9 4078 Humboldt Mill Creek Lake and surrounding meadows Comment
  UC1222193  Symphytum asperum Joseph P. Tracy 1943-10-3 17448 Humboldt bottom Arcata (near Iversen dairy ranch) Comment
  SEINET11115992  Symphytum asperum Unknown 1949-1 18358 Humboldt CALIFORNIA PLANTS HUMBOLDT COUNTY Salmon Creek Valley, south end of Humboldt Bay; naturalized native of Asia. Comment
  UC1198054  Synthyris reniformis Joseph P. Tracy 1926-1-24 7348 Humboldt Lawrence Creek, at crossing of the Kneeland Road; Lawrence Creek 457 Comment
  UC1222775  Synthyris reniformis Joseph P. Tracy 1950-8-4 19263 Humboldt Grasshopper peak, head of Canoe Creek (in Bull Creek State Park); Bull Creek State Park Comment
  UC582541  Synthyris reniformis Joseph P. Tracy 1936-2-28 14771 Humboldt Trinidad, on coast Trinidad Comment
  UC582543  Synthyris reniformis Joseph P. Tracy 1923-3-10 6152 Humboldt Van Duzen River, near Grizzly Creek; Van Duzen River 91 Comment
  UC582545  Synthyris reniformis Joseph P. Tracy 1926-2-28 7380 Humboldt East Fork of Willow Creek Canyon]; Northern Coast Ranges 457 Comment
  HSC35858  Tanacetum bipinnatum Thomas W. Nelson, James Nelson 1975-8-5 2137 Humboldt Along south spit of Humboldt Bay ca. 1 mile N. of Table Bluff Comment
  SJSU5383  Tanacetum bipinnatum T. A. Fulton 1969-5-20 Humboldt strand of Stone Lagoon c. 3 mi SW of Orick Comment
  HSC38893  Tauschia kelloggii J. P. Smith, J. O. Sawyer 1973-5-12 6684 Humboldt 3.8 mi. from Redwood Creek on Hoopa road Comment
  POM319589  Taxus brevifolia Patricia Wilder 1968-8-22 4429 Humboldt Bull Creek Flat, Humboldt Redwood State Park, north of Weott and west of U. S. 101. Coast Mountain range, south fork of Eel River. 61 Comment
  RSA46723  Taxus brevifolia Doris K. Kildale 1937-10-28 15080 Humboldt Willits Comment
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Jan 24 2013
  HSC20426  Tellima grandiflora D. E. Anderson 1965-5-8 3629 Humboldt 0.6 mi. W of bridge over N Fork of the Mad River along Hwy. 299 Comment
  HSC56241  Tellima grandiflora Walter Overton 1979-8-1 12338 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  RSA167304  Tellima grandiflora Joseph P. Tracy 1950-6-8 18722 Humboldt Near Mountain Glen Ranch, summit of ridge, 7 miles south of Ferndale. Bear River Ridge. 610 Comment
  SEINET12217338  Tellima grandiflora F. H. Utech 1988-1 88 -279 Humboldt along CA 36 from Bridgeville enroute to Dinsmore, mile marker 42.00, bluffs above Van Duzen River 800 Comment
  HSC18237  Thalictrum polycarpum S. S. Stutz 1963-5-18 61 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  UC1129924  Thermopsis macrophylla var. macrophylla A. E. Wieslander 1931-5-19 7 Humboldt near Orleans; Klamath National Forest, Hoopa Quadrangle Comment
  UC1198813  Thlaspi californicum Joseph P. Tracy 1921-5-30 5483 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC91618  Thuja plicata E. Mackey 1986-10-7 Humboldt Patrick's Point State Park along Patrick's Point Drive Comment
  SBBG56418  Thuja plicata M. Van Rensselaer 1938-3-31 Humboldt Humboldt County [no specific locality] Comment
  UCD134110  Thuja plicata H. E. Parks 1932-7-25 01139 Humboldt :'Camp 21', Hammond Lumber Company, Trinidad. 152 Comment
  CAS-BOT-BC88324  Thysanocarpus curvipes John H. Thomas 1968-4-21 14363 Humboldt Near mouth of Bluff Creek about 6 miles northeast of Weithchpec near Bluff Creek Campground. 140 Comment
  HSC56240  Tiarella trifoliata var. unifoliata Walter Overton 1979-8-1 12337 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  UC1409074  Tiarella trifoliata var. unifoliata Robert F. Thorne and P. Everett 1965-8-5 35140 Humboldt below summit Mt. Chamisal Mt. Chamisal; , below summit 533 Comment
  CAS-BOT-BC436906  Tiarella trifoliata var. unifoliata Milo S. Baker 1923-7-1 82 Humboldt Near Wilder's Comment
  JEPS49712  Tiarella trifoliata var. unifoliata W. L. Jepson 1921-9-10 9455 Humboldt Bull Creek Flat; South Fork Eel, Bull Creek Flat 60 Comment
  RSA246663  Tiarella trifoliata var. unifoliata R. F. Thorne, Percy C. Everett 1965-8-4 35127 -b Humboldt Wailaki Recreation site. 518 Comment
  UC11935  Tiarella trifoliata var. unifoliata J. Burtt Davy 1899-6-13 5513 Humboldt Redwoods near Camp Grant (along the Eel River); along the Eel River Comment
  UC615036  Tiarella trifoliata var. unifoliata Beryl O. Schreiber 1934-6-4 1129 Humboldt Redwood Highway Stephen's Grove (Stephen's Grove) Comment
  UC1222357  Tolmiea diplomenziesii Joseph P. Tracy 1950-6-8 18726 Humboldt Bear River Ridge 609 Comment
  HSC97505  Tonella tenella Cara Witte 2007-5-22 74 Humboldt Cold Spring. 0.5 miles south of Titlow Hill. 1422 Comment
  JEPS26267  Tonella tenella Joseph P. Tracy 1902-6-3 1666 Humboldt near Hubbards Station (on ridge between Eel River and South Fork); Northern Coast Ranges 609 Comment
  POM117573  Toxicodendron diversilobum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  CAS-BOT-BC399988  Trautvetteria caroliniensis Joseph P. Tracy 1937-7-2 15387 Humboldt Happy Camp Mountain. (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  JEPS63170  Trichostema oblongum Joseph P. Tracy 1927-8-7 8327 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  BLMAR75  Trientalis latifolia Jennifer Anthony-Wheeler 1994-6-2 75 Humboldt IAQUA, growing by logging rd in shaded forest 853 Comment
  RSA460855  Trientalis latifolia W. Hutchinson 1927-05 s.n. Humboldt [Unspecified] Comment
  HSC45119  Trifolium bifidum R. Sutherland 1978-5-19 10 .19578 Humboldt 134 Comment
  HSC45121  Trifolium bifidum R. Sutherland 1978-5-19 17 .19578 Humboldt 183 Comment
  POM160892  Trifolium bifidum Joseph P. Tracy 1922-4-30 5992 Humboldt Trinity River Valley, near Willow Creek. 152 Comment
  UC1223328  Trifolium campestre Joseph P. Tracy 1938-6-7 15857 Humboldt 5 mi se Korbel (Canyon Creek) Comment
  HSC100529  Trifolium ciliolatum Carl C. Marshall Jun 1887 476 Humboldt Near Jewett Creek. Comment
  POM127032  Trifolium cyathiferum Chesnut, E. R. Drew 1888-8-2 s.n. Humboldt Grouse Creek Comment
  RSA249399  Trifolium cyathiferum D. E. Anderson, Thomas Nelson, S. Dowty 1972-6-17 5705 Humboldt McKeown Ranch north of Dinsmore Comment
  SEINET12157175  Trifolium cyathiferum J. P. Tracy 1937-1 15519 Humboldt Devils Hole, head of Hors Linto Creek, Trinity Summit 1676 Comment
  UC1223490  Trifolium cyathiferum Joseph P. Tracy 1950-7-6 19007 Humboldt 2 mi s Burr Valley (on Albee Rd) 1158 Comment
  UC1223478  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1933-5-20 12242 Humboldt Petrolia Mattole Valley Comment
  POM160884  Trifolium dichotomum Joseph P. Tracy 1925-5-30 7023 Humboldt Mcclellan Mountain. 823 Comment
  UC1542872  Trifolium dubium Harold E. Parks May 1934 4324 Humboldt Spruce Cove Trinidad Comment
  BLMAR741  Trifolium dubium Jennifer Wheeler 2015-5-18 741 Humboldt King range, at corrals or strawberry rock grazing allotment 121 Comment
  UC33413  Trifolium eriocephalum var. eriocephalum W. C. Blasdale 1896-6-7 Humboldt Mad River Comment
  HSC71441  Trifolium fucatum J. P. Smith 1971-10-9 5044 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC45123  Trifolium fucatum R. Sutherland 5 .19578 Humboldt 128 Comment
  UC1223459  Trifolium fucatum Joseph P. Tracy 1933-5-20 12221 Humboldt s point of cape (near ocean shore); Cape Mendocino Comment
  RSA21656  Trifolium fucatum var. fucatum Carl B. Wolf 1937-6-14 8811 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  UC1197197  Trifolium gracilentum Joseph P. Tracy 1909-5-2 2965 Humboldt near Cutten and McDonald Tract; Eureka Comment
  UC16569  Trifolium hybridum Joseph Burtt Davy and Walter C. Blasdale 1899-6-17 5601 Humboldt Arcata Comment
  HSC59064  Trifolium incarnatum Thomas Wood 1979-4-6 95 Humboldt On Hwy. side W of 2nd bridge overpass from Eureka, on Gunther Island Comment
  HSC58641  Trifolium longipes G. L. Clifton, Griswold 1979-7-31 11637 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC58663  Trifolium longipes G. L. Clifton, Griswold 1979-8-1 12012 Humboldt Near High Springs, close to the town of Hoopa 1798 Comment
  HSC71336  Trifolium longipes J. P. Smith 1976-5-30 8828 Humboldt Near Black Rock on road to Clear Lake 1524 Comment
  RSA256585  Trifolium longipes subsp. elmeri D. E. Anderson, Thomas Nelson, S. Dowty, B. Anderson 1972-6-13 5559 Humboldt Westward lower slopes of Black Lassic near Trinity County line. 1585 Comment
  UCSB30613  Trifolium longipes subsp. elmeri David Edwards 1974-8-1 76 Humboldt collected 2.50 mi SW, along the N-side of a dirt road, 50 ft N of Mad River, at 45 degree bend river, 0.50 mi S of Putter Creek Korbel - Mad River, Putter Creek and Korbel 27 Comment
  HSC99351  Trifolium longipes subsp. hansenii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 197 Humboldt Near North Trinity Mtn and Water Dog Lakes, Six Rivers National Forest. 1826 Comment
  UC1223333  Trifolium longipes var. oreganum Joseph P. Tracy 1950-7-1 18945 Humboldt near Clear Lake (where the Friday Ridge comes ot the top of Grouse Mtn Ridge); Grouse Mtn summit 1219 Comment
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Apr 3 2008
  UC1223361  Trifolium macraei Joseph P. Tracy 1950-6-18 18842 Humboldt 1 mi e Cape Mendocino (Cape Ridge, at roadside at top of ridge) 152 Comment
  HSC95210  Trifolium microcephalum Andrea Pickart 2002-7-3 155 Humboldt Lanphere Dunes: Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 0 Comment
  JEPS65953  Trifolium microcephalum W. L. Jepson 1932-7-26 16401 Humboldt Bull Creek Comment
  UC1197548  Trifolium microcephalum Joseph P. Tracy 1932-5-15 10056 Humboldt 5 mi above mouth of Smith River (at crossing of Roosevelt Hwy); Northern Coast Ranges 30 Comment
  CHSC10113  Trifolium microdon J. W. Johnson 1962-5-13 1354 Humboldt Arcata. On stabilized sand of ridge 3, Christenson Farm, Samoa Peninsula. Comment
  HSC95594  Trifolium microdon Andrea Pickart 2002-5-13 102 Humboldt Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 0 Comment
  UC1223353  Trifolium microdon Joseph P. Tracy 1938-6-8 15864 Humboldt Samoa Sand Dunes Comment
  HSC45125  Trifolium obtusiflorum R. Sutherland 1978-6-1 4 .1678 Humboldt 213 Comment
  BLMAR745  Trifolium subterraneum Jennifer Wheeler 2015-5-18 745 Humboldt King range, strawberry rock grazing allotment down windy point 243 Comment
  HSC45117  Trifolium variegatum R. Sutherland 1978-5-19 11 .19578 Humboldt 134 Comment
  UC1223540  Trifolium variegatum var. variegatum Joseph P. Tracy 1939-4-29 16238 Humboldt mouth of Slate Creek; Klamath River Comment
  HSC63279  Trifolium willdenovii M. A. Baker 1979-5-6 475 Humboldt Weitchpec. Comment
  SEINET12157351  Trifolium willdenovii J. P. Tracy 1942-1 17358 Humboldt 1 mi NE of Garberville on road to Harris 305 Comment
  UC1223313  Trifolium willdenovii Joseph P. Tracy 1950-5-6 18640 Humboldt Willow Creek Trinity River Valley 152 Comment
  BLMAR743  Trifolium wormskioldii Jennifer Wheeler 2015-5-18 743 Humboldt King range, strawberry rock grazing allotment down windy point 243 Comment
  UC1223372  Trifolium wormskioldii Joseph P. Tracy 1950-6-18 18767 Humboldt w Petrolia (hills betw town and ocean) Comment
  CAS-BOT-BC451810  Triglochin maritima Robert F. Thorne; P. Everett 1965-8-9 35303 Humboldt Big Lagoon 3 Comment
  CHSC31317  Triglochin maritima Mark Stopher 1980-6-4 88 Humboldt Near banks of Elk River and tidal creeks near Hwy 101. 1 Comment
  CHSC69507  Triglochin maritima Vernon Oswald; Lowell Ahart 1997-9-4 8849 Humboldt North Coast Region. Big Lagoon County Park at the southwest edge of Big Lagoon. Bordering a drainage entering the lagoon at the boat ramp. 3 Comment
  CAS-BOT-BC451807  Triglochin maritima W. R. Dudley 1899-6-1 s.n. Humboldt Below Samoa--Eureka Penn. [Peninsula] Comment
  UC1222529  Trillium albidum Joseph P. Tracy 1950-4-20 18615 Humboldt 2 mi. w. Dinsmosre's (lower foothills of n.w. slope of Buck Mt.); Buck Mt. 762 Comment
  HSC96775  Trillium kurabayashii M. Mesler 2006-6-6 609 Humboldt 1.2 mi. SE of intersection of USFS Rd. 8N01 and Box Camp loop 1524 Comment
  HSC48827  Trillium ovatum Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 27 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  UCR13422  Trillium ovatum T. Wetherwax 1973-4-1 730104- 01 Humboldt c. 2 mi north of US Hwy 299 on Fieldbrook Road 61 Comment
  HSC15700  Trillium ovatum Dan O'Brien 1962-4-21 Humboldt 0.5 mi. E of HSC campus Comment
  HSC15701  Trillium ovatum D. M. Thomson 1965-4-26 30 Humboldt Along Gold Bluff Rd. 1.0 mi. S of Prairie Creek State Park Comment
  HSC15703  Trillium ovatum W. F. Nickel 1965-4-3 Humboldt 5 mi. SE of Fern Canyon in Prairie Creek Redwoods State Park, on rd. to Fern Canyon Comment
  HSC98740  Trillium ovatum subsp. ovatum Cara Witte 2008-6-4 685 Humboldt Ammon Ridge Road. Approximately 1/2 mile east of intersection with National Forest 1. 1562 Comment
  CAS-BOT-BC521251  Trillium rivale J. H. Thomas 1949-6-12 897 Humboldt 2 miles west of Matins Ferry on road to Orick. Comment
  SEINET10459890  Triodanis perfoliata Chandler CHANDLER 1514 Humboldt Klamath River, somes bar. 427 Comment
  JEPS884  Triphysaria eriantha subsp. eriantha Harley P. Chandler May, 1901 1142 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 3 Comment
  UC146242  Triphysaria eriantha subsp. eriantha J. P. Tracy 1904-4-24 2035 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  JEPS26224  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1899-4-9 136 Humboldt region about Humboldt Bay Bucksport; Northern Coast Region, region about Humboldt Bay 0 Comment
  CDA41899  Triphysaria pusilla E. C. Whitney 1966-4-25 s.n. Humboldt E. Baird property, Hydesville. 0 Comment
  HSC20860  Triphysaria versicolor subsp. faucibarbata C. O. Baker 1962-5-7 36 Humboldt 2 mi. S of Trinidad along old Hwy. 101 122 Comment
  JEPS13343  Triphysaria versicolor subsp. versicolor W. K. Parks July, 1932 1427 Humboldt Trinidad Comment
  HSC32371  Triphysaria versicolor subsp. versicolor Linda M. Barker 1974-5-19 197 Humboldt Arcata, Samoa Blvd., 200 yards E of Hwy. Patrol Station, median divider Comment
  HSC98871  Trisetum canescens Cara Witte 2007-7-8 443 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  RSA10082  Trisetum canescens Joseph P. Tracy 1932-7-16 10614 Humboldt Trinity Summit 1524 Comment
  HSC104044  Trisetum cernuum C. Reynolds 2015-4-25 38 Humboldt About 1 mi. from Redwood Creek Trailhead, off Bald Hills Road 26 Comment
  UC1103146  Trisetum cernuum Joseph P. Tracy 1918-4-21 4881 Humboldt Newells Camp Northern Coast Ranges (on old Kneeland Prairie Road) 304 Comment
  SEINET10604393  Trisetum cernuum Harley P. Chandler Chandler 1176 Humboldt Humboldt Bay. 30 Comment
  JEPS5665  Triteleia bridgesii W. L. Jepson Jul 16 1902-Jul 23 1902 2006 Humboldt Hupa to Mud Spring; Trinity Summit 1219 Comment
  HSC3061  Triteleia laxa D. E. Anderson 1962-7-14 2251 Humboldt 2 mi. W of Kneeland Post Office Comment
  UC180201  Triteleia laxa Joseph P. Tracy 1914-5-14 4453 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  JEPS557  Triteleia laxa Joseph P. Tracy 1938-7-5 16001 Humboldt 5 mi e Carlotta (by old Strong's District School House) 45 Comment
  RSA36387  Triteleia laxa E. K. Balls, Lee W. Lenz 1956-6-12 21663 Humboldt 23 miles southwest of Willow Creek along U.S. Highway 299 toward Arcata 640 Comment
  UC1197716  Triteleia laxa Joseph P. Tracy 1942-6-15 17168 Humboldt 5 mi n Garberville 152 Comment
  UC1197721  Triteleia laxa J. P. Tracy 1906-6-24 2504 Humboldt s slope of hill near Fields Landing; Humboldt Hill 30 Comment
  UC52241  Triteleia peduncularis J. P. Tracy 1903-6-12 1920 Humboldt Eureka vicinity 0 Comment
  RSA1916  Tsuga heterophylla C. B. Wolf 1930-10-25 1763 Humboldt 12 miles above Blue Lake along Blue Lake to Willow Creek Road (Lord Ellis Road). 305 Comment
  SDSU2008  Tsuga heterophylla D. F. Howe 1963-7-7 3616 Humboldt 5 miles north of Orick on #101. Comment
  POM380627  Urtica dioica subsp. gracilis Lyman D. Benson 1929-7-12 1792 Humboldt Weott Ranger Station; S Fork Eel River. Comment
  UC1197787  Vaccinium membranaceum Joseph P. Tracy 1934-8-29 13625 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC199310  Vaccinium ovatum Carl B. Wolf 1927-8-27 1159 Humboldt On the Klamath River 2 mi. below the Salmon River Comment
  POM118414  Vaccinium ovatum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  UC154183  Vaccinium ovatum Mrs. M. H. Manning May 1902 Humboldt near Hupa Comment
  UCD166890  Vaccinium ovatum Colleen Rossier 2016-9-17 8 Humboldt Sunny Ridge Road, plot Sunny Ridge Red. 579 Comment
  HSC98120  Vaccinium parvifolium Cara Witte 2007-5-24 113 Humboldt Horse Mountain Botanical Area. Along Forest Service Rd. 6N38. Near Horse Mountain Mine. 1578 Comment
  RSA471156  Vaccinium parvifolium Anonymous 1924-7-10 s.n. Humboldt Arcata. Comment
  HSC7928  Vaccinium scoparium D. E. Anderson 1965-6-1 3758 Humboldt Horse Mtn., near ski lodge 1433 Comment
  JEPS58714  Vaccinium uliginosum subsp. occidentale Joseph P. Tracy 1924-7-13 6725 Humboldt Big Lagoon Northern Coast Region 6 Comment
  SEINET12318510  Vahlodea atropurpurea K. S. Erdman 1970-1 4819 Humboldt Redwood National Park, summit of Gold Bluffs on park road about 2 mi W of US 101 at Berry Glen Comment
  UC673215  Valeriana sitchensis subsp. scouleri Lincoln Constance, Reed C. Rollins 1942-5-11 2867 Humboldt 3 mi w of East Fork of Willow Creek; North Coast Ranges Comment
  UC602513  Valeriana sitchensis subsp. scouleri Joseph P. Tracy 1925-6-7 7061 Humboldt Willow Creek Canyon; Northern Coast Ranges 609 Comment
  UC602496  Valeriana sitchensis subsp. sitchensis Joseph P. Tracy 1932-7-13 10505 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC3383  Vancouveria hexandra Frances Oldridge 1946-1 Humboldt Eureka Comment
  CAS-BOT-BC76084  Vancouveria planipetala Doris K. Kildale 1926-6-27 2192 Humboldt Sweasey Lake, McClellan Mountain. 822 Comment
  HSC24385  Vancouveria planipetala J. O. Sawyer 1970-6-24 2222 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  SEINET10932381  Vancouveria planipetala Mary Merello 1993-6-19 Merello 658 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  SEINET10904790  Vancouveria planipetala Jones 1985-5-10 Jones 35 Humboldt T5n,r6e,sec.34, grays falls campground off of hwy 299. Ceanothus, arbutus, Quercus lobata habitat 241 Comment
  UC146078  Vancouveria planipetala Joseph P. Tracy 1908-6-23 2678 Humboldt near Grizzly Gulch; Northern Coast Ranges, near Grizzly Gulch 152 Comment
  RSA152385  Velezia rigida Joseph P. Tracy 1947-7-5 17774 Humboldt Trinity Summit; Ridge top one mile W of Mud Springs. 1159 Comment
  CDA39365  Veratrum californicum T. C. Fuller 1958-6-17 1713 Humboldt Mazepa Ranch, Wildcat Ridge. 0 Comment
  RSA168947  Veratrum californicum Joseph P. Tracy 1950-9-2 19347 Humboldt Fields Landing, 2 miles south of town 6 Comment
  RSA0049599  Veronica hederifolia var. triloba Dean Wm. Taylor 2013-5-8 21405 Humboldt Arcata, about the grounds of the Masonic Lodge, on Bayside road east of Highway 101 21 Comment
  HSC21211  Veronica persica S. J. Roberts 1965-4-24 15 Humboldt 0.5 mi. S of junction of Iverson and Parton Lanes Comment
  HSC21213  Veronica persica R. A. Eagle 1964-4-15 32 Humboldt Just off campus of HSC near elementary school Comment
  HSC21215  Veronica persica J. L. Baker 1965-3-9 1 Humboldt 4 mi. N of Arcata on N Bank Rd. Comment
  HSC55299  Veronica serpyllifolia subsp. humifusa Terry Griswold, Marvin Butler 1979-7-10 6379 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  POM283765  Veronica serpyllifolia var. humifusa Lyman D. Benson 1928-7-12 478 Humboldt Weott Ranger Station. Seaward N Coast mtn range. S Fork Eel River. 61 Comment
  SEINET12157686  Vicia americana J. P. Tracy 1942-1 17231 Humboldt Trinity Summit, near Box Camp 1524 Comment
  SBBG3866  Vicia americana subsp. americana H. and M. Dearing 1939-5-24 3421 Humboldt Mattole Rd to Dyerville Comment
  HSC58157  Vicia americana var. americana G. L. Clifton, Griswold 1979-8-2 12211 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  UC1197478  Vicia americana var. americana Joseph P. Tracy 1939-4-18 16216 Humboldt between Miranda and Redway (South Fork of Eel River); North Coast Ranges, South Fork of Eel River 91 Comment
  HSC31755  Vicia americana var. americana Donald Spalinger 1974-5-19 73 Humboldt S of Barry Ridge Rd., 1.5 mi. SW of Kneeland School 762 Comment
  HSC90225  Vicia hirsuta L. Watson, J. Meninga Apr 1991 24 Humboldt Near Manilla, Mad River Slough and Dunes. N end of parking lot, W side of trail. Comment
  JEPS66183  Vicia hirsuta Frank W. Peirson 1923-7-11 3630 Humboldt n of Eureka Comment
  RSA170257  Vicia hirsuta Joseph P. Tracy 1916-5-31 4689 Humboldt Stitz Creek. Along Eel River South Fork to Scotia. 61 Comment
  UC1562619  Vicia tetrasperma Barbara Ertter with Thomas J. Delendick 1987-5-16 6912 Humboldt ca 8 mi e Arcata (Hwy 299 roadside, 9.5 mi w of Lord Ellis summit) Comment
  HSC25947  Vicia tetrasperma Thomas W. Nelson 1970-12-1 291 Humboldt River bar of the Eel River north of the Scotia Bluff Comment
  CAS-BOT-BC263942  Viola adunca Mrs. H. C. Cantelow 1941-4-26 s.n. Humboldt 12 miles SW of Ferndale, on road to Cape Mendocino Comment
  HSC73065  Viola adunca M. A. Baker 1980-6-16 1948 Humboldt Near Onion Mtn. 1280 Comment
  HSC91932  Viola adunca E. Mackey 1986-5-13 Humboldt Patrick's Point State Park; Palmer's Point Comment
  RSA46778  Viola adunca Doris Kildale Gillespie 1937-8-26 15342 Humboldt Christmas Prairie. Comment
  SEINET11980785  Viola adunca f. adunca Unknown 1936-1 13040 Humboldt Fields Landing Comment
  HSC44428  Viola cuneata Brad Klipfel 1975-5-30 644 Humboldt Horse Mtn. Comment
  HSC97552  Viola cuneata Cara Witte 2007-6-1 167 Humboldt Horse Mountain Botanical Area. Along Forest Service Road 6N38. 1382 Comment
  UC1763356  Viola cuneata Davy and Blasdale 1899-1 5510 Humboldt Near Humboldt & Del Norte [county line?] Comment
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Nov 12 2007
  CHSC24743  Viola glabella G. Strang 1976-4-10 5 Humboldt Highway 36, 10.5 mi e of U.S. 101. 97 Comment
  HSC32130  Viola glabella D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5592 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC41248  Viola glabella Brad Klipfel 1974-5-27 395 Humboldt Near Horse Mtn. Comment
  UC1198456  Viola glabella Joseph P. Tracy 1913-5-4 4055 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC536491  Viola glabella Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC21802  Viola glabella D. E. Anderson 1964-2-23 2902 Humboldt 6 mi. E of Carlotta along Hwy. 36; along Van Duzen River Comment
  HSC26335  Viola glabella Thomas W. Nelson 1971-3-30 363 Humboldt Beside Howe Creek Comment
  JEPS50385  Viola glabella Lincoln Constance 1934-5-26 652 Humboldt near Founder's Tree (North Dyerville Flat); Bull Creek Region, South Fork Eel River, North Dyerville Fla 48 Comment
  HSC32079  Viola hallii D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5593 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  RSA46691  Viola hallii Doris K. Kildale 1938-6-5 15398 Humboldt Horse Mountain Comment
  HSC99353  Viola macloskeyi K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-21 2 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC71727  Viola ocellata M. A. Baker 1980-6-26 2456 Humboldt Near Sims Creek 610 Comment
  UC66204  Viola ocellata Mrs. M. H. Manning June 1901 Humboldt near Hupa Comment
  UC66206  Viola ocellata Mrs. M. H. Manning June 1902 Humboldt Hupa Comment
  HSC21827  Viola ocellata J. F. Knezevich 1967-6-1 171 Humboldt 5 mi. E of Willow Creek on Hwy. 299 Comment
  UC35264  Viola ocellata W. C. Blasdale 1896-6-8 Humboldt Grahams Comment
  UCSB27854  Viola praemorsa Phelps, M. 1972-3-20 Humboldt 1000 yds. north of Whitethorn turnoff on Shelter Cove Rd., roadside 304 Comment
  JEPS50373  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1930-6-8 8730 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  RSA79371  Viola praemorsa subsp. praemorsa E. K. Balls, Lee W. Lenz 1952-5-12 17198 Humboldt 0.6 mi E of Dinsmore along Hwy 36 from Alton to Red Bluff. Comment
  SEINET200805 Image available Viola quercetorum J. P. Tracy 1913-6-17 4149 Humboldt Burr Valley NW slope of Buck Mountain 1067 Comment
  UC1198436  Viola sempervirens Joseph P. Tracy 1933-3-26 10938 Humboldt Big Lagoon 30 Comment
  UC35300  Viola sempervirens Chesnut and Drew 1888-7-8 Humboldt Kneeland Prairie Comment
  CAS-BOT-BC203050  Vitis californica L. R. Abrams 1918-6-16 7151 Humboldt Willow Creek Comment
  JEPS40256  Vitis californica W. L. Jepson 1924-9-20 10653 Humboldt Richardson Grove South Fork Eel River Comment
  CAS-BOT-BC199802  Vulpia Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  UCD93467  Vulpia bromoides Harley P. Chandler 1901-5-1 1175 b Humboldt Humboldt County. 30 Comment
  CAS-BOT-BC184233  Vulpia microstachys var. pauciflora Joseph P. Tracy 1926-5-2 7440 Humboldt Trinity River Valley, near the South Fork 182 Comment
  RSA121356  Vulpia microstachys var. pauciflora H. L. Person 1932-5-11 s.n. Humboldt Near Arcata 0 Comment
  UC277197  Vulpia microstachys var. pauciflora Joseph P. Tracy 1921-6-12 5818 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC70930  Vulpia microstachys var. pauciflora Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5674 Humboldt Hoopa Mt. Comment
  UC1103718  Vulpia myuros var. hirsuta Joseph P. Tracy 1914-5-14 4432 1/2 Humboldt Fort Seward 106 Comment
  UC1145203  Vulpia myuros var. hirsuta Joseph P. Tracy 1941-3-26 16836 Humboldt Willow Creek; Trinity River Valley 152 Comment
  CHSC68557  Whipplea modesta Vernon H. Oswald 1997-4-29 8356 Humboldt Humboldt Bay NWR, Hookton Slough Trail on the levee along the south side of Hookton Slough. On the edge of the trail. 0 Comment
  JEPS49626  Whipplea modesta W. L. Jepson 1932-7-26 16400 Humboldt Bull Creek Comment
  SDSU911  Whipplea modesta D. F. Howe 1961-8-2 3121 Humboldt 7.7 Miles east of Orick on Bald Mtn. Road. 610 Comment
  JEPS60110  Woodwardia fimbriata Lincoln Constance 1934-6-2 784 Humboldt S Fork Eel River; Bull Creek Region Comment
  HSC58195  Wyethia angustifolia G. L. Clifton, Griswold 1979-8-2 12294 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC6316  Wyethia angustifolia Frances Oldridge 1945-1 Humboldt Arcata Comment
  CAS-BOT-BC382928  Wyethia angustifolia Henry M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans Comment
  CAS-BOT-BC326976  Wyethia longicaulis Joseph P. Tracy 1938-7-7 16041 Humboldt Grouse Mountain 1524 Comment
  BLMAR415  Xanthium strumarium Jennifer Wheeler 2007-8-22 415 Humboldt South Spit, East side of road, near ecotone between atriplex and dune swale Comment
  HSC56963  Xerophyllum tenax Overton, Butler 1979-7-23 9481 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  HSC74331  Xerophyllum tenax Gail Newton 1980-6-16 147 Humboldt Near Monks Camp 1097 Comment
  SEINET3356277 Image available Xerophyllum tenax Joseph P. Tracy 1937-8-15 15665 Humboldt French Camp Comment
  UC1134688  Xerophyllum tenax A. E. Wieslander 1931-5-19 208 Humboldt near Orleans (Klamath National Forest); Klamath National Forest Comment
  UC13722  Xerophyllum tenax Chesnut and Drew 1888-7-21 Humboldt South Fork Mountain Comment
  HSC73063  Zigadenus micranthus M. A. Baker 1980-6-16 1959 Humboldt Near Onion Mtn. 1280 Comment
  HSC96224  Zigadenus micranthus Eric Schori, Kazuyuki Ishimaru 2005-6-3 1 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment



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