Search Results — 2000 specimen records retrieved (1390 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC78057  Abies grandis Doris K. Kildale 1927-2-21 2958 Humboldt Bucksport, back of cemetery 30 Comment
  RSA33416  Abies grandis Doris K. Kildale 1941-7-25 s.n. Humboldt Arcata Comment
  UC502902  Abies grandis Joseph P. Tracy 1932-6-26 10261 Humboldt Valley of South Yager Creek Northern Coast Ranges, Valley of South Yager Creek 762 Comment
  HSC12834  Abies magnifica Thomas W. Nelson, Wilbur Peterson 1970-12-2 296 Humboldt HSC Campus, W side of tennis court Comment
  SD41412  Abronia latifolia Edith A. Purer 1932-7-27 4154 Humboldt Near Samoa Comment
  RSA0025083  Abronia latifolia Gary D. Wallace, Larry E. DeBuhr 1972-5-23 1083 Humboldt Along the beach at Freshwater Lagoon just south of Orick. Comment
  HSC104082  Acacia melanoxylon J. St. Marie 2002-3-24 Humboldt Manila; Peninsula Drive; grove adjacent to maritime forest Comment
  CAS-BOT-BC436986  Acaena novae-zelandiae D. W. Cooper 1967-6-30 s.n. Humboldt On ridge just southeast of Forest Service Nursery, ca. 2 miles southeast of Crannell and ca. 4 miles east of U.S. Highway 101 Comment
  CAS-BOT-BC330539  Acer circinatum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC74463  Acer circinatum M. A. Baker 1980-5-18 1360 Humboldt Near Black Mtn. 792 Comment
  UC668176  Acer circinatum Joseph P. Tracy 1935-5-26 13911 Humboldt Lawrence Creek at crossing of the Kneeland Road; Lawrence Creek 457 Comment
  UC1222158  Acer glabrum var. glabrum Joseph P. Tracy 1950-7-1 18947 Humboldt near Clear Lake (back of Cold Springs, Cold slope); Grouse Mountain, at Cold Springs, near Clear Lake 1432 Comment
  HSC58129  Acer glabrum var. torreyi Gilbert Muth 1979-8-1 12124 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC70824  Acer macrophyllum M. A. Baker 1980-6-7 1824 Humboldt Near Ammon Creek 732 Comment
  UC1199013  Acer macrophyllum Joseph P. Tracy 1914-8-23 4592 Humboldt in valley of North Fork of Elk River Northern Coast Region, Humboldt Bay, North Fork Elk River (Region about Humboldt Bay) 0 Comment
  RSA624389  Acer macrophyllum Louis C. Wheeler 1952-9-14 6930 Humboldt Steep east slope, associated with Umbellularia, Quercus garryana, Pseudotsuga taxifolia. Young tree ca. 8 meters tall. (#5) (Leaves from this tree for analysis). Comment
  HSC4569  Achillea millefolium Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  HSC73585  Achillea millefolium Gail Newton 1980-7-14 1495 Humboldt Near Last Chance Ridge. 1219 Comment
  UC1125415  Achillea millefolium H. L. Person 1931-7-30 19358 Humboldt Fieldbrook; Eureka Quad. Comment
  HSC36212  Achillea millefolium John Rehling 1975-9-26 108 Humboldt Near Alliance Rd. Comment
  HSC73179  Achlys triphylla M. A. Baker 1980-5-18 1295 Humboldt Near Black Mtn. 1006 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
  SEINET12094127  Achlys triphylla F. H. Utech 1988-1 88 -275 Humboldt 14 mi W of Bridgeville on CA 36, Van Duzen County Park along Van Duzen River 50 Comment
  UC552774  Achnatherum occidentale subsp. californicum H. E. Parks and Joseph P. Tracy 1934-6-27 11078 Humboldt Grouse Mt. 1432 Comment
  UCD103770  Acmispon americanus var. americanus Linda M. Barker 1976-6-1 1548 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCD103751  Acmispon denticulatus Bill Brooks 1948-6-1 s.n. Humboldt Van Duzen River, 3 mi. W of Bridgeville. Comment
  HSC98300  Acmispon micranthus Norman H. Moe 1962-5-12 Humboldt Lanphere's place, .25 mi. from ocean. Comment
  HSC98308  Acmispon micranthus D. B. Bader 1963-3-1 22 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101 Comment
  HSC64762  Acmispon micranthus Bruce Gordon 1979-6-18 140 Humboldt Redwood National Park, NNE of K & K Rd, about 2.5 mi. S of junction of K & K Rd. and Bald Hills Rd. 707 Comment
  JEPS5767  Aconitum columbianum Joseph P. Tracy 1937-8-12 15661 Humboldt Snow Camp Comment
  UC502930  Aconitum columbianum Joseph P. Tracy 1932-7-10 10393 Humboldt Trinity Summit, Corral Prairie Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  HSC59943  Aconitum columbianum subsp. columbianum J. P. Smith, Steve Selva 1970-6-30 4112 Humboldt Comment
  HSC82405  Aconogonon davisiae Thomas W. Nelson 1979-7-11 5021 Humboldt N Trinity Mtn. and ridge to E, SE of Water Dog Lake 1829 Comment
  UC164803  Adenocaulon bicolor Joseph P. Tracy 1909-7-31 3042 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prarie 762 Comment
  CAS-BOT-BC62294  Adiantum aleuticum Volney Rattan 1886-8-1 s.n. Humboldt Austin Creek, coast mts. north of San Francisco Bay Comment
  HSC953  Adiantum aleuticum Gene S. Van Horn 1962-5-20 24 Humboldt 0.5 mi. S of large quarry, 200 yards S of Jacoby Creek 46 Comment
  JEPS35159  Adiantum aleuticum Lincoln Constance 1934-6-1 776 Humboldt South Fork Eel River Comment
  RSA687733  Adiantum aleuticum Anstruther Davidson 1923-10-8 17061 Humboldt Near Bridgeville Comment
  UC418981  Adiantum aleuticum H. E. and S. T. Parks May, 1930 749 Humboldt Van Duzen River Comment
  HSC76197  Agastache urticifolia Overton, Butler 1979-8-2 12510 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC154271  Agastache urticifolia Joseph Burtt Davy 1899-6-20 5694 Humboldt Hoopa Valley Comment
  CAS-BOT-BC30381  Ageratina occidentalis Doris K. Kildale 1925-7-19 1051 Humboldt Bridgeville, on Van Duzen River 228 Comment
  POM54273  Ageratina occidentalis P. E. Goddard 1906-06 638 Humboldt North fork of Eel River Comment
  RSA167313  Agoseris aurantiaca Joseph P. Tracy 1949-8-7 18441 Humboldt Trinity Summit, meadow at Box Camp 1463 Comment
  HSC70406  Agoseris grandiflora M. A. Baker 1980-6-7 1842 Humboldt Near Ammon Creek 732 Comment
  HSC74690  Agoseris grandiflora Gail Newton 1981-8-7 2464 Humboldt Near Board Camp Mtn. 1478 Comment
  HSC4597  Agoseris grandiflora John Johnson 1962-8-17 1004 Humboldt Samoa Peninsula; Lanpher Ranch Comment
  UCD128594  Agoseris grandiflora Joseph P. Tracy 1942-7-18 17275 Humboldt north end of town, Garberville. Comment
  UC582751  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1936-6-17 14949 Humboldt nw slope Buck Mountain 792 Comment
  UCD128614  Agoseris heterophylla James P. Smith 1973-5-5 6479 Humboldt Along Cook and Green Pass Road. Comment
  UC1222892  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1948-5-31 18015 Humboldt 1 mi sw, (near Alder Point) Harris; Alder Point 304 Comment
  UC582742  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1931-6-14 9579 Humboldt at Alton ((along Van Duzen River)); North Coast Ranges, Van Duzen River 30 Comment
  RSA249387  Agoseris retrorsa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5586 Humboldt Mt. Lassic and 2 smaller peaks to immediate E. 1768 Comment
  POM319539  Agrostis Patricia Wilder 1968-8-21 4367 Humboldt Big Lagoon Park, just west of U.S. 101 15 Comment
  SEINET200944  Agrostis Joseph P. Tracy 1927-7-17 8271 Humboldt Three cabins On lower western foothills of Chaparral Mountain. 457 Comment
  BLMAR424  Agrostis capillaris Jennifer Anthony-Wheeler 2005-7-20 424 Humboldt Lost Coast Headland, growing in grazing allotment 91 Comment
  CAS-BOT-BC127522  Agrostis capillaris L. R. Abrams 1916-7-18 6139 Humboldt At Trinidad. Comment
  SEINET201009  Agrostis diegoensis Doris Kildale Humboldt Trinity Summit 1829 Comment
  CAS-BOT-BC127284  Agrostis exarata Joseph P. Tracy 1927-7-17 8285 Humboldt Northern Coast Ranges. Three Cabins. Chaparral Mountain. 457 Comment
  CAS-BOT-BC127285  Agrostis exarata William Arents Silveus 1938-7-10 2969 Humboldt Eureka. Comment
  HSC98510  Agrostis exarata Cara Witte 2008-8-6 1005 Humboldt Board Camp Mountain; 1 mile south of Forest Service Road 4N38 and National Forest 1 intersection. 1416 Comment
  UC1103376  Agrostis exarata Joseph P. Tracy 1934-6-23 13252 Humboldt along river near Blue Lake; Mad River 15 Comment
  UC204531  Agrostis exarata Joseph P. Tracy 1918-7-21 5085 Humboldt around Humboldt Bay (mossy bog); Northern Coast Ranges, Humboldt Hill 91 Comment
  UCD52234  Agrostis exarata var. pacifica A. H. Murphy 1948-7-29 s.n. Humboldt Sherman Flat, 3.5 miles north of Blocksburg. Comment
  BLMAR432  Agrostis gigantea Jennifer Wheeler 2005-7-20 432 Humboldt Lost Coast Headland, growing in grazing allotment 91 Comment
  SEINET201012  Agrostis hallii Joesph P Tracy 1908-7-30 2882 Humboldt Van Duzen River opposite buck mountain Comment
  UC526882  Agrostis hallii Joseph P. Tracy 1930-6-29 8812 Humboldt nw slope Buck Mountain; Northern Coast Ranges 762 Comment
  UCD52687  Agrostis hallii H. S. Yates 1936-6-17 5698 Humboldt Lower N.W. slope of Buck Mt. 792 Comment
Read comments
Aug 22 2008
  CAS-BOT-BC139132  Agrostis oregonensis Joseph P. Tracy 1934-7-18 13452 Humboldt North Coast Ranges. Grouse Mountain. 1524 Comment
  UC552752  Agrostis oregonensis Joseph P. Tracy 1934-7-18 13452 Humboldt in wet meadow North Coast Ranges, Grouse Mountain 1524 Comment
  UCD53175  Agrostis pallens Don Hagar 1957-8-16 s.n. Humboldt Humboldt - Trinity County border: north slope of Trinity Mtn., 15 miles east of Hoopa. 1828 Comment
  HSC8802  Agrostis stolonifera John Warner Hosking 1966-8-6 Humboldt Aracata, HSU campus, near Wildlife Bldg. Comment
  HSC58825  Agrostis thurberiana Walter Overton 1979-8-1 12399 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  UC1103371  Agrostis viridis Joseph P. Tracy 1911-7-9 3460 Humboldt wet places along Willow Creek (creek is tributary of Trinity River); Northern Coast Ranges 243 Comment
  HSC34956  Aira caryophyllea Thomas W. Nelson 1975-5-24 1870 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC8855  Aira caryophyllea N. R. Waite 1965-5-19 41 Humboldt W edge of Humboldt State University campus. Comment
  RSA205970  Aira praecox Joseph P. Tracy 1900-6-5 849 Humboldt Immediate vicinity of Eureka. 0 Comment
  RSA286352  Aira praecox R. F. Thorne 1974-7-29 45069 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  UC194898  Alisma plantago-aquatica Joseph P. Tracy 1916-6-19 4724 Humboldt Dobbyn Creek Northern Coast Ranges 182 Comment
  HSC98646  Allium amplectens Cara Witte 2007-6-7 233 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  CAS-BOT-BC460748  Allium amplectens C. C. Harris; S. K. Harris 1936-6-24 645 Humboldt At point where the road from Bridgeville to Dinsmore crosses the Little Van Duzen River. 701 Comment
  JEPS56361  Allium bolanderi W. L. Jepson 1902-7-1 1978 Humboldt Three Creeks to Willow Creek Comment
  HSC98503  Allium bolanderi var. bolanderi Cara Witte 2007-7-8 434 Humboldt Board Camp Mountain. Pack trail 4E26. 1491 Comment
  HSC32148  Allium campanulatum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5599 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  UC666927  Allium campanulatum Joseph P. Tracy 1933-7-25 12863 Humboldt Grouse Mountain 1524 Comment
  JEPS47610  Allium siskiyouense Joseph P. Tracy 1932-6-12 10484 Humboldt Head of Brett Hole Trinity Summit, Brett Hole 1828 Comment
  CAS-BOT-BC475482  Allium triquetrum E. C. Whitney 1965-4-19 s.n. Humboldt Lamphire Rd. and nearby field, Arcata Bottoms Comment
  CAS-BOT-BC171311  Alnus incana subsp. tenuifolia Milo S. Baker 1927-8-21 2487 a Humboldt Brush Mt. 914 Comment
  SBBG1284  Alnus incana subsp. tenuifolia H. and M. Dearing 1939-6-23 3691 Humboldt E fork of Willow Crk Comment
  HSC40988  Alnus rhombifolia Thomas W. Nelson, Jane P. Nelson 1977-6-19 3518 Humboldt S of Alder Spring 1463 Comment
  CAS-BOT-BC169540  Alnus rubra Carl B. Wolf 1931-8-28 2366 Humboldt Moist ravine, Redwood Highway, 4 1/2 miles N of Fortuna on road to Eureka 15 Comment
  CAS-BOT-BC169546  Alnus rubra Joseph P. Tracy 1930-11-16 9255 Humboldt Alton, along Van Duzen River 30 Comment
  CAS-BOT-BC169549  Alnus rubra H. E. Parks; S. T. Parks 1938-4-1 24126 Humboldt Spruce Cove, Trinidad 60 Comment
  HSC3392  Alnus rubra Eugene Andreuccetti 1964-4-2 33 Humboldt 3 mi. N of Tish Tang Ranger Station on Hwy. 96 along Trinity River Comment
  JEPS58588  Alnus rubra Lincoln Constance 1934-5-31 746 Humboldt along creek from w boundary of Park to Grasshopper Pk. (Squaw Cr.) rd. (n side of cr.); Bull Creek Region, South Fork Eel River, Bull Cr. flat Comment
  UC484033  Alnus rubra C. B. Wolf 1930-10-26 1767 Humboldt near Redwood Highway Bridge (s edge of Lagoon); Big Lagoon 9 Comment
  UC1103310  Alopecurus aequalis Joseph P. Tracy 1932-8-21 10360 Humboldt Three Cabins North Coast Ranges, w. foothills Chaparral Mt., Three Cabins 457 Comment
  CAS-BOT-BC138015  Alopecurus geniculatus Ira L. Wiggins 1932-6-18 5867 Humboldt Margins of the lagoon at the mouth of Little River. Comment
  RSA152369  Alopecurus saccatus Joseph P. Tracy 1942-6-2 17096 Humboldt Local in wet field. Alton. 30 Comment
  CAS-BOT-BC13701  Ambrosia chamissonis Ira L. Wiggins 1930-7-7 4673 Humboldt Near Samoa Comment
  UCD128769  Ambrosia chamissonis Linda M. Barker 1976-8-2 1674 Humboldt 3 miles west of Arcata. Comment
  HSC91929  Ambrosia chamissonis E. Mackey 1987-10-9 Humboldt Patricks Point State Park; Agate Beach Comment
  SEINET200733  Amelanchier alnifolia H. P. Chandler 1282 Humboldt Hoopa Valley IR ; Hupa [Hoopa Valley] Indian Reservation 1097 Comment
  SDSU19194  Amelanchier alnifolia var. semiintegrifolia Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3011 Humboldt Six Rivers National Forest. From Hwy 299, take Titlow Hill Road (at Berry Summit) ca. 7.5 miles south, west 0.2 miles to Cold Spring. Ca. 0.3 mile south-southeast of Cold Spring. Ca. 3.3 aerial miles south-southeast of Horse Mtn. Radio Tower. 1426 Comment
  UC1198751  Amelanchier utahensis Joseph P. Tracy 1937-4-3 15241 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC154234  Amelanchier utahensis J. P. Tracy 1909-5-2 2953 Humboldt immediate vicinity Eureka 0 Comment
  UC183554  Amelanchier utahensis Joseph P. Tracy 1913-6-17 4188 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  CAS-BOT-BC137864  Ammophila arenaria Alice Eastwood 1923-8-14 12302 Humboldt Samoa. Comment
  CAS-BOT-BC137865  Ammophila arenaria David D. Keck; J. Clausen 1935-6-16 3387 Humboldt Mouth of Little River. Comment
  SEINET200930  Ammophila arenaria J. P. Tracy 1918-7-28 5087 Humboldt Humboldt Bay particularly Samoa Comment
  UCD55994  Ammophila arenaria Linda M. Barker 1976-6-22 1624 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC45082  Amsinckia retrorsa R. Sutherland 1978-4-24 12 .24478 Humboldt Kinsey Ridge; base of cliff 323 Comment
  UC562471  Anagallis arvensis Joseph P. Tracy 1932-5-10 9936 Humboldt Bear R. Ridge Northern Coast Ranges, Bear R. Ridge 609 Comment
  HSC27391  Anaphalis margaritacea Thomas W. Nelson 1970-9-3 230 Humboldt Mad River. Comment
  HSC57007  Anaphalis margaritacea Overton, Butler 1979-7-24 9594 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC57923  Anaphalis margaritacea Gilbert Muth 1979-7-31 11547 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  HSC99574  Anaphalis margaritacea K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 239 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
  UC127736  Anaphalis margaritacea Mrs. M. H. Manning 1900-1-1 Humboldt near Hupa Comment
  HSC4618  Anaphalis margaritacea J. Rockwell 1962-11-12 151 Humboldt Near Coast Guard Station Comment
  HSC90394  Anaphalis margaritacea Jean Hanson 1980-8-28 117 Humboldt Indian (Gunther) Island, in Humboldt Bay, Eureka; Across from the Coast Guard Station beginning ca. 75 ft. from the high tide line Comment
  RSA21448  Anaphalis margaritacea C. B. Wolf 1937-8-13 9212 Humboldt North Coast Range, 9 miles NE of Blue Lake on Lord Ellis Road. 244 Comment
  UC853529  Anemone deltoidea Eliz. Parsons Hawver Jun 1915 Humboldt Carlotta Comment
  UC562610  Angelica arguta Joseph P. Tracy 1932-7-12 10443 Humboldt Trinity Summit, at Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  HSC99580  Angelica genuflexa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 245 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
  UC1197384  Angelica genuflexa Joseph P. Tracy 1937-7-17 15442 Humboldt 2 mi s of Fields Landing (near Still Ranch); Northern Coast Region 6 Comment
  JEPS14107  Angelica hendersonii Joseph P. Tracy 1937-8-22 15674 Humboldt Table Bluff 91 Comment
  HSC71330  Angelica lucida J. M. DiTomaso 1980-6-7 1571 Humboldt Elkshead, N of Trinidad. Comment
  JEPS14221  Angelica tomentosa Joseph P. Tracy 1938-8-14 16107 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  UC906655  Angelica tomentosa Joseph P. Tracy 1949-8-26 18528 Humboldt 3 mi s of Grizzly Camp (Trinity Summit); Trinity Summit 1463 Comment
  UC175968  Anisocarpus madioides Joseph P. Tracy 1911-6-4 3213 Humboldt 5 mi from coast (along Little River); Northern Coast Region, Little River 121 Comment
  HSC57992  Antennaria rosea subsp. rosea G. L. Clifton, Griswold 1979-7-31 11742 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC1222875  Antennaria suffrutescens Joseph P. Tracy 1946-5-4 17528 Humboldt along Trinity Highway; Willow Creek Canyon Comment
  UC1565810  Antennaria suffrutescens R. Spellenberg 1990-7-10 10250 Humboldt 4 mi s, 7.5 air mi sw of Willow Creek Berry Summit; Horse Mountain 1493 Comment
  SEINET11853676  Antennaria suffrutescens J. P. Tracy 1947-1 17864 Humboldt Horse Mountain 1433 Comment
  HSC10101  Anthoxanthum occidentale L. H. Myers 1963-2-20 17 Humboldt W of Lanpheres Rd, Mad River slough area Comment
  HSC38077  Anthoxanthum occidentale Thomas Nelson, James Nelson 1976-5-30 2630 Humboldt McKeown Ranch, N of Dinsmore Comment
  CAS-BOT-BC137736  Anthoxanthum odoratum Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  HSC8934  Anthoxanthum odoratum H. E. Parks, S. T. Parks Apr 1952 24444 Humboldt Spruce Cove, Trinidad 61 Comment
  HSC37848  Anthriscus caucalis Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island 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
  RSA249385  Antirrhinum vexillocalyculatum subsp. breweri Paul W. Shields 1955-9-25 s.n. Humboldt 17 mi. SE Willow Creek. Comment
  JEPS49817  Apocynum cannabinum Joseph P. Tracy 1932-6-14 10148 Humboldt Trinity R. Valley, at Willow Creek Trinity R. Valley, Willow Creek 152 Comment
  CAS-BOT-BC392167  Aquilegia formosa Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  UC1196202  Aquilegia formosa Joseph P. Tracy 1926-5-9 7453 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UCD95545  Aquilegia formosa H. P. Olmo 1931-6-8 s.n. Humboldt 5 miles north of Trinidad. Comment
  HSC18041  Aquilegia formosa var. formosa N. D. Dennis 1965-5-8 57 Humboldt 2.5mi N of Willow Creek Comment
  HSC56440  Arabis glabra Griswold, Butler 1979-7-12 7172 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC58192  Arabis glabra G. L. Clifton, Griswold 1979-8-2 12289 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC76348  Arabis glabra Denis Kearns 1981-7-22 520 Humboldt Near Whiteys Peak 1487 Comment
  HSC79063  Arabis subpinnatifida D. K. Imper 1983-7-28 Humboldt Six Rivers National Forest, Orleans, off FS 12N20 near Bald Mtn. Comment
  JEPS53191  Arabis suffrutescens var. horizontalis Joseph P. Tracy 1933-7-25 12878 Humboldt North Coast Ranges, Grouse Mt. 1524 Comment
  RSA568502  Aralia californica Thekla Mohr 1919-07 s.n. Humboldt Eel River. Comment
  JEPS40071  Aralia californica Lincoln Constance 1934-5-29 740 Humboldt n. bank Bull Creek opposite Squaw Creek; Bull Creek Region, W. Fork Eel R. Comment
  UC933379  Aralia californica Annie M. Alexander and Louise Kellogg 1948-9-3 5587 Humboldt Trinity R. near Hoopa Reservation; Trinity R. Comment
  CAS-BOT-BC128698  Arbutus menziesii Doris K. Kildale 1927-12-1 4210 Humboldt Klamath River at Orleans Comment
  JEPS66576  Arbutus menziesii W. L. Jepson 1902-7-10 2004 Humboldt South Fork Trinity River, Martin's Ranch, (Expedition) from Ukiah to the Hupa Indian Reservation South Fork Trinity River; , Martin's Ranch 396 Comment
  HSC74408  Arceuthobium campylopodum Gail Newton 1980-8-10 2022 Humboldt Near Blake Mtn. 1798 Comment
  SEINET11853818  Arctium minus J. P. Tracy 1950-1 19351 Humboldt Occasional at Beatrice, 3 mi S of Field's Landing Comment
  CAS-BOT-BC24093  Arctostaphylos canescens subsp. canescens Carl B. Wolf 1937-9-13 9335 Humboldt North Coast range Horse Mt. 1524 Comment
  BLMAR112  Arctostaphylos columbiana Jennifer Anthony-Wheeler 1995-1-19 112 Humboldt King range, growing in open meadow/clearing for new KR admin site 283 Comment
Read comments
Apr 5 2016
  CAS-BOT-BC23753  Arctostaphylos columbiana Doris K. Kildale 1927-1-30 2899 Humboldt Big Lagoon, coastal terrace Comment
  CAS-BOT-BC23766  Arctostaphylos columbiana Joseph P. Tracy 1923-2-18 6142 Humboldt Patrick's Point 30 Comment
  CAS-BOT-BC23770  Arctostaphylos columbiana C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. betwwn Shelter Cove and Kenny Comment
  CAS-BOT-BC23785  Arctostaphylos columbiana Doris K. Kildale 1927-2-22 2980 Humboldt Kneeland Prairie at juncion of old and new roads 609 Comment
  JEPS38969  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15171 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  RSA622680  Arctostaphylos columbiana Jon E. Keeley 1996-10-13 27769 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  SBBG58410  Arctostaphylos columbiana H. E. Parks -Dec-1931 4950 Humboldt Hobson's, Trinidad 60 Comment
  UC176958  Arctostaphylos columbiana Joseph P. Tracy 1912-7-25 3816 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
  UC585920  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15171 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UCD50769  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1178 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road from Orick, French Camp Ridge. Comment
  CAS-BOT-BC23732  Arctostaphylos columbiana C. Hart Merriam 1921-7-7 s.n. Humboldt Ridges west of the Van Duzen River. Comment
  RSA15551  Arctostaphylos columbiana var. columbiana C. B. Wolf 1927-8-30 1241 Humboldt Paradise, 5 or 6 miles N of Ettersburg. Comment
  RSA1899  Arctostaphylos columbiana var. columbiana C. B. Wolf 1930-10-29 1784 Humboldt Old Coast Rd. 7 mi S of Honeydew Post Office. 305 Comment
  HSC54509  Arctostaphylos glandulosa Overton, Butler 1979-7-23 9415 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  CAS-BOT-BC24364  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1926-8-22 2575 Humboldt Bald Hills near Imbinson's. Comment
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Sep 27 2020
  HSC38516  Arctostaphylos nevadensis D. E. Anderson, J. P. Smith 1971-6-18 1085 Humboldt Horse Mtn. Comment
  JEPS38983  Arctostaphylos nevadensis Joseph P. Tracy 1927-6-12 8132 Humboldt Horse Mountain 1432 Comment
  SEINET11995486  Arctostaphylos nevadensis subsp. knightii W. Knight, Knight, I. 1988-1 6360 Humboldt 21 mi up Bald Hill Rd from US 101 en route to Hoopa 975 Comment
  CAS-BOT-BC46630  Arctostaphylos patula Joseph P. Tracy 1939-8-16 16419 Humboldt Grouse Mountain. 1524 Comment
  UC1198668  Arctostaphylos patula Joseph P. Tracy 1942-6-23 17263 Humboldt open ridges near Water-dog Lakes; Trinity Summit 1828 Comment
  CAS-BOT-BC43993  Arctostaphylos uva-ursi Robert F. Thorne; P. Everett 1965-8-5 35156 Humboldt Samoa Dunes 3 Comment
  CAS-BOT-BC47212  Arctostaphylos uva-ursi John Thomas Howell 1954-4-25 29157 Humboldt Little River. Comment
  HSC12226  Arctostaphylos uva-ursi Gary J. Stebbins 1970-4-18 68 Humboldt Along road to Samoa 1.1 mi. S of Mad River slough bridge Comment
  HSC71587  Arctostaphylos viscida Gail Newton 1980-6-16 180 Humboldt Near Monks Camp 109 Comment
  HSC16899  Armeria maritima subsp. californica S. J. Hawks 1965-3-9 42 Humboldt 1 mi. W of McKinleyville, past the end of Murray Rd. Comment
  HSC26887  Armeria maritima subsp. californica Clifton Raymond Chesbrough 1973-6-19 99 Humboldt 0.5 mi. N of College Cove, along the coast. Comment
  HSC59197  Armeria maritima subsp. californica Terry Roth 1979-5-24 78 Humboldt Samoa Dunes near the U.S. Coast Guard Station 5 Comment
  SEINET7253518 Image available Armeria maritima subsp. californica Joseph P. Tracy 1927-1 8115 Humboldt Trinidad 3 Comment
  UC1073398  Armeria maritima subsp. californica George B. Rossbach 1955-6-10 397 Humboldt point off Eureka (at Fairhaven); Fairhaven Comment
  CAS-BOT-BC82101  Arnica cernua Joseph P. Tracy 1926-5-2 s.n. Humboldt Willow Creek Canyon Comment
  HSC65884  Arnica cernua M. A. Baker 1980-6-16 1944 Humboldt Near Onion Mtn. 1280 Comment
  HSC98121  Arnica cernua Cara Witte 2007-5-24 119 Humboldt Along National Forest 1. Approximately 1 mile south of intersection with 6N38 and 6N36. 1476 Comment
  RSA417143  Arnica discoidea H. M. Pollard 1947-8-8 s.n. Humboldt South River Road, south of Orleans Comment
  SEINET200928  Arrhenatherum elatius J. P. Tracy 1919-8-28 5184 Humboldt Eureka 0 Comment
  HSC75275  Artemisia douglasiana J. O. Sawyer, D. A. Thornburgh 1980-9-9 4080 Humboldt Mill Creek Lake and surrounding meadows Comment
  RSA15563  Artemisia pycnocephala C. B. Wolf 1927-8-29 1206 Humboldt Devils' Gate, S of Cape Mendocino. Comment
  RSA246933  Artemisia pycnocephala R. F. Thorne, Percy C. Everett 1965-8-5 35169 Humboldt Samoa Dunes. 3 Comment
  CAS-BOT-BC400529  Asarum caudatum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC34795  Asarum caudatum John Palmer 1975-4-9 297 Humboldt 40 yds. E of intersection of 17th at Bayview St., Arcata 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
  SEINET6652462  Asarum caudatum J. P. Tracy 1900-5-22 794 Humboldt Vicinity of Eureka Comment
  HSC40034  Asclepias cordifolia Thomas W. Nelson, Jane P. Nelson 1976-6-22 2881 Humboldt Just E of Goat Mtn. lookout. 1666 Comment
  UC35246  Asclepias speciosa Chesnut and Drew 1888-7-22 Humboldt Hy-Am-Pum Comment
  UC23011  Asclepias speciosa J. Burtt Davy 1899-6-24 5866 Humboldt Hoopa Valley, along the river North Coast Ranges Comment
  CAS-BOT-BC65942  Aspidotis densa L. B. Kildale 1930-9-21 10218 Humboldt Bluff Creak trail to Fish Lake Comment
  RSA47130  Aster alpigenus Doris K. Kildale 1925-8-16 1195 Humboldt Trinity Summit 1829 Comment
  HSC100424  Aster foliaceus Carl C. Marshall Sep 1886 247 Humboldt Everywhere. Comment
  RSA417736  Aster ledophyllus Brad W. Klipfel 1973-7-15 189 Humboldt Along ridge trail southeast of North Trinity Mountain 1829 Comment
  RSA167196  Aster oregonensis Joseph P. Tracy 1950-9-22 19378 Humboldt Roadside, about 3 miles southwest of Orleans Comment
  RSA47181  Aster radulinus Doris K. Kildale 1925-8-21 1312 Humboldt Yager Comment
  CAS-BOT-BC193132  Astragalus rattanii var. rattanii Volney Rattan 1884-1-1 s.n. Humboldt Headwaters Eel River Comment
  RSA135343  Astragalus rattanii var. rattanii Volney Rattan 1884-1 s.n. Humboldt Big Creek. Comment
  UC397265  Astragalus rattanii var. rattanii P. E. Goddard June, 1907 b. 124 Humboldt Van Duzen Comment
  CAS-BOT-BC69523  Athyrium filix-femina subsp. cyclosorum Doris K Niles 1948-4-17 3 Humboldt Peugh Road Creek, 1 mi. e. of Loleta. Comment
  POM281070  Athyrium filix-femina subsp. cyclosorum Lyman Benson 1928-7-12 492 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; Watershed: S Fork Eel River. 76 Comment
Read comments
Oct 12 2010
  RSA137262  Athyrium filix-femina subsp. cyclosorum I. L. Wiggins 1957-6-19 14127 Humboldt 2.5 miles west of Pepperwood in dense Redwood forest Comment
  UC161493  Athysanus pusillus Joseph P. Tracy 1908-6-9 2644 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  CDA15325  Atriplex prostrata R. Spadoni 1998-10-5 s.n. Humboldt North Coast; Near Loleta. Comment
  HSC23467  Atriplex prostrata Wilbur Peterson 1971-11-1 407 Humboldt Salt Marsh of Humboldt Bay neat Jct. of G St. and Hwy. 101 in Arcata. Comment
  HSC26780  Avena barbata Thomas W. Nelson 1971-5-31 461 Humboldt 915 Comment
  UC526858  Avena barbata Joseph P. Tracy 1930-6-29 8825 Humboldt Buck Mountain Northern Coast Ranges (lower foothills of nw slope) 762 Comment
  UC526703  Avena fatua Joseph P. Tracy 1926-5-9 7457 Humboldt hills near Bridgeville; North Coast Ranges 609 Comment
  HSC60017  Azolla filiculoides M. A. Baker 1978-5-20 566 Humboldt W side of the Klamath River along Hwy. 96 Comment
  UC34578  Bellis perennis Chesnut and Drew 1888-7-8 Humboldt Arcata Comment
  HSC89490  Bellis perennis P. A. Daly 1986-2-28 64 Humboldt Trinidad Head, along trail 61 Comment
  JEPS26214  Bensoniella oregona Joseph P. Tracy 1939-7-9 16327 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC128915  Berberis aquifolium Alice Eastwood; John Thomas Howell 1937-6-23 4794 Humboldt Near Dinsmore's Comment
  HSC65099  Berberis aquifolium var. aquifolium J. P. Smith, J. O. Sawyer 1973-5-12 6687 Humboldt 6.1 mi. from Redwood Creek on Hoopa Rd. Comment
  CAS-BOT-BC75687  Berberis nervosa Carl B. Wolf 1927-8-28 1179 Humboldt 13 miles above Blue Lake on the Lord Ellis Road. Comment
  HSC42786  Berberis nervosa Rick Cooper 1977-4-23 13 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  OBI30306  Berberis nervosa Wallace Weber, John C. Cooke, D. J. Pinkava, & David J. Keil 1969-8-19 2214 Humboldt 24.9 mi W of Humboldt county line on rte 299 Comment
  BLMAR413  Bidens cernua Clara Sander 2007-8-22 413 Humboldt South Spit, east side of road near "lone tree" 9 Comment
  HSC102084  Bistorta bistortoides M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 988 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UCSB8245  Blechnum spicant Robbins, G. 1936-8-1 Humboldt Near Strong's Station. Comment
  HSC56263  Boykinia major G. L. Clifton, Griswold 1979-8-2 12420 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC64874  Boykinia occidentalis J. P. Smith 1973-5-26 6845 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC667115  Boykinia occidentalis Joseph P. Tracy 1934-7-22 13484 Humboldt at crossing of the Bridgeville-Kneeland Road North Yager Creek 396 Comment
  HSC38345  Brassica nigra Peter Sorensen 1976-6-14 Humboldt North Spit Comment
  HSC98960  Brassica nigra Cara Witte 2007-7-24 573 Humboldt Ammon Ridge Road. At intersection with 5N15. 1441 Comment
  UCR104577  Brassica rapa A. R. Alexander 1998-4-9 8 Humboldt US Highway 101 and Giuntoli Lane, near shopping center, Arcata 152 Comment
  HSC6582  Brassica rapa D. E. Anderson 1962-2-10 1922 Humboldt 1.5 mi. S of Trinidad Comment
  BLMAR52  Briza maxima Brad Barr June, 1982 52 Humboldt King range, Etters cabin Comment
  HSC66126  Briza minor J. P. Smith, Steve Selva 1970-6-14 3825 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  CAS-BOT-BC145571  Briza minor Henry M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans. Comment
  SEINET10833761  Brodiaea ida-maia Lyman D. Benson 1930-7-18 Benson 2188 Humboldt West of Willow Creek. Mt. Range, Seaward N coast. River West of Trinity 1500 feet. Slope south Barren hillsides, abundant. Comment
  JEPS513  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1927-6-8 8111 Humboldt Trinidad 3 Comment
  UC249867  Bromus carinatus var. carinatus Joseph P. Tracy 1923-6-18 6282 Humboldt Northern Coast Ranges, Bear River Ridge Bear River Ridge; Northern Coast Ranges, Bear River Ridge 304 Comment
  HSC9214  Bromus carinatus var. marginatus R. I. Bonn 1965-10-1 Humboldt 2 mi. N of Bridgeville on May Ranch. 732 Comment
  UCD59215  Bromus carinatus var. marginatus R. Tofsrud 1948-9-1 s.n. Humboldt Road between Horse Mt. and Grouse Mt. 1371 Comment
  BLMAR143  Bromus diandrus Donald Hazlett 1994-6-7 143 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC103009  Bromus diandrus J. P. Smith 2014-5-20 13851 Humboldt Samoa Peninsula 6 Comment
  HSC48064  Bromus diandrus Thomas W. Nelson 1978-4-23 3884 Humboldt N of Samoa Comment
  HSC9274  Bromus diandrus P. W. Shields 1956-4-21 Humboldt 5 mi. SE Arcata. Comment
  HSC9173  Bromus hordeaceus C. S. Chavez 1965-3-28 14 Humboldt 1 mi. S of Samoa on Samoa Rd. Comment
  HSC9246  Bromus hordeaceus L. H. Myers 1963-5-17 36 Humboldt W of Lanpheres Rd., Mad River slough area Comment
  POM161048  Bromus hordeaceus Joseph P. Tracy 1919-5-25 5138 Humboldt Eureka. 0 Comment
  UC526925  Bromus hordeaceus Joseph P. Tracy 1933-6-25 12622 Humboldt 2 to 5 mi e of South Fork Eel River (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  RSA44464  Bromus laevipes Henry M. Pollard 1948-7-19 s.n. Humboldt Near Van Fleet ranch Comment
  UCD59007  Bromus madritensis A. H. Murphy 1951-5-21 45 Humboldt 2 miles S of Blocksburg. Prior Ranch. Comment
  HSC9324  Bromus madritensis subsp. rubens R. Long 1964-5-16 Humboldt Tish-tang Ranger Station, Hoopa Comment
  UC552678  Bromus sterilis Joseph P. Tracy 1935-6-23 13980 Humboldt Northern Coast Ranges, French Camp Ridge French Camp Ridge; Northern Coast Ranges, French Camp Ridge 1066 Comment
  HSC9369  Bromus tectorum C. R. Ball, H. E. Parks, J. P. Tracy 1932-5-17 1345 Humboldt Trinity River, near bridge on Trinity Highway 152 Comment
  HSC75234  Cakile edentula D. M. Gordon 1982-9-23 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  SD38262  Cakile edentula var. edentula Edith A. Purer 1932-7-27 4140 Humboldt Samoa Comment
  UCD56952  Calamagrostis foliosa A. H. Murphy 1951-5-18 38 Humboldt approx. 1.5 mi. south of Petrolia at bridge corssing, along Mattole River. Comment
  HSC58660  Calamagrostis koelerioides Gilbert Muth 1979-8-1 11888 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  UC1131347  Calamagrostis nutkaensis H. S. Yates 1936-6-16 5681 Humboldt 1 mi ne Samoa; Eureka Quadrangle Comment
  CHSC100698  Callitriche heterophylla var. bolanderi Robert F. Thorne; P. Everett 2007-6-13 35345 Humboldt Along Hwy. 101 about 3 mi. N of Eureka; in shallow water ca. 1 ft. deep of ditch along roadside. 1 Comment
  CHSC110706  Callitriche stagnalis Dean Wm. Taylor 2004-6-24 19136 Humboldt Clear Lake, along Titlow Hill Road. 1493 Comment
  JEPS84870  Callitriche stagnalis C. Thomas Philbrick 1987-6-9 2048 Humboldt ca. 0.5 mi. n. Orick (Redwood Creek, n. side of Rt. 101); Redwood Creek Comment
  CAS-BOT-BC80391  Calocedrus decurrens Doris K. Kildale 1928-10-7 6750 Humboldt Trinity River at Willow Creek Flat Comment
  UC1601652  Calochortus coeruleus Joseph Burtt Davy Jun 21 1899-Jun 23 1899 5744 1/2 Humboldt Trinity Trinity Summit Comment
  HSC70761  Calochortus tolmiei M. A. Baker 1980-7-19 2994 Humboldt Near Bret Hole. 1814 Comment
  UC1197675  Calochortus tolmiei Joseph P. Tracy 1927-6-12 8148 Humboldt Horse Mountain 1280 Comment
  UC1197677  Calochortus tolmiei Joseph P. Tracy 1922-4-30 5997 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC494366  Calochortus tolmiei H. C. Cantelow 1941-4-19 36 Humboldt 2 1/2 mi. n. e. of Cape Town. Open hillside above ocean on rd. to Ferndale from Patrolia. Comment
  HSC34875  Calochortus tolmiei Thomas W. Nelson, James Nelson 1975-5-5 1779 Humboldt Beside Hwy. 101, ~ 4 mi. S of the Salmon Creek Bridge Comment
  HSC44357  Calochortus tolmiei Brad Klipfel 1974-5-27 399 Humboldt Horse Mtn., ridge top near forks in rd. Comment
  UC176353  Calochortus tolmiei Joseph P. Tracy 1913-6-22 4263 Humboldt opposite Buck Mountain (Dinsmore's Ranch); North Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC102008  Caltha leptosepala M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 909 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC75826  Caltha leptosepala Bill Copeland 1980-6-26 323 Humboldt Near Snow Camp Lake 1372 Comment
  HSC82398  Caltha leptosepala Thomas W. Nelson 1979-7-11 5016 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  RSA167249  Calycadenia truncata subsp. microcephala Joseph P. Tracy 1941-9-1 17009 Humboldt In slide rock along Trinity River near Don Juan Point 335 Comment
  UC1196471  Calypso bulbosa J. P. Tracy 1901-4-26 1041 Humboldt immediate vicinity of Eureka (Humboldt Hill); Humboldt Hill 0 Comment
  UC1196476  Calypso bulbosa Joseph P. Tracy 1949-6-6 18303 Humboldt ne of Hawkins Bar (in Trinity Summit Range, Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC30129  Calypso bulbosa A. M. Montalvo, J. D. Ackerman 1974-4-14 170 Humboldt 100 m from intersection with Hwy. 299 along Chezem Rd., just W of Redwood Creek Comment
  HSC38744  Calypso bulbosa M. Mesler, K. Mesler, J. D. Ackerman 1976-4-25 752 Humboldt Hwy. 36, E of Bridgeville, near tip of ridge W of Dinsmore Comment
  UC1196479  Calypso bulbosa Joseph P. Tracy 1913-6-25 4342 Humboldt opposite Buck Mountain (in Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  HSC17640  Calyptridium monospermum Doris K. Kildale 1925-8-16 1227 Humboldt Trinity Summit 1829 Comment
  UC673024  Calyptridium umbellatum Joseph P. Tracy Jul 16 1930-Jul 19 1930 8946 Humboldt summit near Blake Lookout (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1706 Comment
  SEINET200998  Calystegia J. P Tracy 1917-5-30 4803 Humboldt Near Little River Comment
  HSC32094  Calystegia occidentalis subsp. occidentalis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5706 Humboldt McKeown Ranch, N of Dinsmore Comment
  UC141691  Calystegia occidentalis subsp. occidentalis T. S. Brandegee Humboldt Dutch Flat Comment
  HSC40941  Calystegia soldanella Linda M. Barker 1976-6-1 1559 Humboldt 3 mi. W of Arcata Comment
  HSC6361  Calystegia soldanella Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  UCD126159  Calystegia soldanella Linda M. Barker 1976-6-1 1559 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC74419  Camassia quamash subsp. linearis Gail Newton 1980-8-10 2041 Humboldt Near Blake Mountain. 1707 Comment
  CHSC40211  Camassia quamash subsp. quamash L. P. Janeway 1984-5-13 778 Humboldt Along the Kneeland/Bridgeville Road ca 19 mi east of the Kneeland post office and 1 mi south of N Fk Yager Creek. 640 Comment
  HSC16540  Camissonia cheiranthifolia Paul Shields 1955-9-17 Humboldt 1/2 mi. S of mouth of Mad River Comment
  HSC62912  Camissonia cheiranthifolia J. M. DiTomaso 1979-4-22 912 Humboldt Big Lagoon, 8 mi. N of Trinidad Comment
  RSA146360  Camissonia cheiranthifolia subsp. cheiranthifolia G. J. Goodman 1957-9-3 6550 Humboldt On the strand 2 miles south of Orick. Comment
  CHSC68787  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Vernon Oswald 1997-6-5 8532 Humboldt North Spit of Humboldt Bay, west side of New Navy Base Rd. 1.0 mi south of Hwy. 255. 6 Comment
  JEPS11742  Campanula prenanthoides W. L. Jepson 1932-7-24 16383 Humboldt Fruitland Comment
  SEINET10462895  Campanula prenanthoides Anderson 1962-7-17 Anderson 2273 Humboldt CAMP BAUER, CA. .25 MI E OF KORBEL ON N FORK MAD R. Comment
  SEINET10873282  Campanula prenanthoides Rattan 1878-1 RATTAN s.n. Humboldt Comment
  HSC34270  Campanula scouleri K. Irwin 1975-8-16 Humboldt Grogans Hole area. Comment
  SEINET10463747  Campanula scouleri Overton 1979-7-23 OVERTON 9497 Humboldt Near Titlow Hill, on the Willow Creek quadrangle, close to the town of Willow Creek 1280 Comment
  SEINET10905968  Campanula scouleri Wolf 1934-7-2 WOLF 5854 Humboldt 2 MI FROM BALD MT ON RD TO KORBEL SEMISHADE, COMMON 762 Comment
  CAS-BOT-BC37434  Cardamine californica Lincoln Constance; Reed Clark Rollins 1942-5-20 2998 Humboldt Eel River, 1 mile north of Pepperwood. 45 Comment
  HSC95664  Cardamine californica Kevin Thomas 2004-3-6 1 Humboldt Along beach access trail to College Cove Comment
  UC162359  Cardamine californica Joseph P. Tracy 1909-4-4 2950 Humboldt region about Humboldt Bay (Buhne's Ranch); Northern Coast Region, Humboldt Bay Region, Buhne's Ranch 0 Comment
  UCD114535  Cardamine oligosperma Linda M. Barker 1976-2-22 1317 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  HSC6649  Cardamine oligosperma W. F. Nickel 1965-3-13 Humboldt 10 mi. W of Prairie Creek State Park, 0.25 mi. S of Fern Canyon on road to Fern Canyon Comment
  CAS-BOT-BC384766  Cardionema ramosissimum D. E. Breedlove 1962-6-7 3048 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  SEINET11861100  Carduus tenuiflorus J. P. Tracy 1942-6-28 17266 Humboldt Angels Ranch, toward Hungry Hollow, Bald Mountain Comment
  JEPS79833  Carex athrostachya Joseph P. Tracy 1935-7-23 14140 Humboldt Trinity Summit, Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  CAS-BOT-BC18076  Carex athrostachya Joseph Prince Tracy 1935-7-23 14140 Humboldt Trinity Summit. Corral Prairie. 1584 Comment
  HSC70165  Carex bolanderi Thomas W. Nelson 1978-6-10 4417 Humboldt Behind the Seventh-Day Adventist Church on F St. 61 Comment
  SEINET10752409  Carex brainerdii Joseph P. Tracy 1935-7-30 Tracy 14350 Humboldt On ridge 2 miles SW of top Shasta Fir Zone. Comment
  CAS-BOT-BC34010  Carex brevicaulis Joseph Prince Tracy 1939-5-7 16276 Humboldt Sand Dunes, near Samoa, on Humboldt Bay. 6 Comment
  HSC45435  Carex buxbaumii Thomas W. Nelson, Jane P. Nelson 1978-7-2 4397 Humboldt Along FS 2S08 near Pine Mtn. 1463 Comment
  UC562723  Carex concinnoides Joseph P. Tracy 1927-4-23 7911 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 60 Comment
  HSC76385  Carex concinnoides L. P. Janeway 1982-6-20 13 Humboldt NE facing slope near ridgetop 1 mi. SE of Horse Mtn. along FS 6N36 1384 Comment
  HSC103329  Carex densa Thomas W. Nelson, Jane Nelson 1982-7-11 7116 Humboldt Along road from Hindley's cabin on McKeown Ranch to Anderson's Ford at Mad River Comment
  UC1115812  Carex densa Joseph P. Tracy 1938-6-9 15876 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC34971  Carex densa Joseph Prince Tracy 1936-6-3 14848 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC1103103  Carex deweyana subsp. leptopoda Joseph P. Tracy 1923-6-20 6309 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  POM224512  Carex exsiccata H. C. Cantelow 1936-5-18 s.n. Humboldt 8 miles NE of Orick. Comment
Read comments
Jan 20 2011
  SEINET11630974  Carex feta J. P. Tracy 1950-1 19010 Humboldt Buck Mountain, 3 mi S of Burr Valley, on Albee Road 1158 Comment
  SEINET7827267 Image available Carex fracta J. P. Tracy 1950-7-2 18963 Humboldt "Fern Spring;" Happy Camp Mountain (Trinity Summit Range, 6 mi NE of Hawkins Bar.) Comment
  UC562714  Carex globosa Joseph P. Tracy 1932-4-3 9791 Humboldt Englewood North Coast Ranges 91 Comment
  CAS-BOT-BC22320  Carex harfordii Joseph Prince Tracy 1935-6-8 13938 Humboldt Eureka. 60 Comment
  CAS-BOT-BC28163  Carex hoodii Joseph Prince Tracy 1932-7-11 10410 Humboldt trinity Summit, Open places at Corral Prairie. Comment
  UC1103093  Carex integra Joseph P. Tracy 1932-7-14 10547 Humboldt Corral Prairie Trinity Summit 1584 Comment
  POM160829  Carex lenticularis var. limnophila Joseph P. Tracy 1923-6-17 6275 Humboldt Big Lagoon 6 Comment
  UC1152059  Carex lenticularis var. lipocarpa Joseph P. Tracy 1950-8-7 19266 Humboldt meadow at Box Camp Trinity Summit 1463 Comment
  HSC76797  Carex leptopoda L. P. Janeway 1982-6-19 11 Humboldt Near creek from Fern Lake behind HSU fieldhouse. 53 Comment
  HSC43481  Carex microptera Thomas W. Nelson, Jane P. Nelson 1977-9-3 3739 Humboldt Head of Bear Creek 1585 Comment
  HSC70323  Carex multicaulis M. A. Baker 1980-6-7 1875 Humboldt Near Ammon Creek 732 Comment
  SEINET7568483 Image available Carex multicostata L. P. Janeway 2003-7-30 7945 Humboldt Grouse Mountain quad. High North Coast Ranges. Edge of seedy area at upper edge of Clear Lake, 2.9 km southeast of Titlow Hill. 1494 Comment
  UC709322  Carex multicostata Joseph P. Tracy 1939-7-9 16316 Humboldt 1 mi n Murphy Meadows; Bald Mt. 914 Comment
  HSC103353  Carex nervina Thomas W. Nelson, Jane Nelson 1987-6-11 8604 Humboldt Box Spring at Box Camp; along trail to North Trinity Mountain. 1524 Comment
  CHSC40167  Carex nudata L. P. Janeway 1984-4-20 732 Humboldt Levee on east side of Eel River near Fortuna at Sandy Prairie Road. 12 Comment
  CHSC47355  Carex nudata L. P. Janeway 1984-5-13 784 Humboldt Levee on E side Eel River near Fortuna and Sandy Prairie Rd. 12 Comment
  SEINET3905214  Carex nudata Thomas Nelson 1977-5-30 3407 Humboldt In Mad River at Anderson's Ford north of Dinsmore on the McKeown Ranch.; 0 610 Comment
  HSC7069  Carex obnupta S. J. Hawks, D. E. Anderson 1965-5-18 14 Humboldt 1/4 mi. W of Fairhaven Comment
  POM250761  Carex obnupta D. D. Keck 1938-8-5 4770 Humboldt Big Lagoon, among rocks in open spots on beach Comment
  RSA15497  Carex obnupta Joseph P. Tracy 1934-7-30 13514 Humboldt Dry Lagoon (Along coast in front of South End of Stone Lagoon). 3 Comment
  UCSC000111  Carex obnupta H. S. Yates 1936-6-16 5653 Humboldt 0.5 mile S.W. of Samoa - Eureka 0 Comment
  CAS-BOT-BC119267  Carex ovalis Joseph Prince Tracy 1936-5-29 14826 Humboldt Gans Prairie on ridge E or Orick. 548 Comment
  CAS-BOT-BC119242  Carex pachystachya Joseph Prince Tracy 1939-7-9 16340 Humboldt Snow Camp 1402 Comment
  UC709399  Carex pachystachya Joseph P. Tracy 1938-7-18 16083 Humboldt Eureka 30 Comment
  HSC82401  Carex scopulorum var. bracteosa Thomas W. Nelson 1979-7-11 5013 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  SEINET10856669  Carex stipata Joseph P. Tracy 1931-5-17 Tracy 9422 Humboldt Lack Pond; in Trinity River Valley, opposie mouth of Willow Creek. 152 Comment
  UC196570  Carex subbracteata Joseph P. Tracy 1916-5-31 4695 Humboldt along Eel River from South Fork to Scotia (Holmes Flat); Northern Coast Ranges 60 Comment
  CAS-BOT-BC116673  Carex subfusca Doris K. Kildale 1927-7-22 3826 Humboldt Lassecks Peaks, Coral Goat Camp. 1661 Comment
  CAS-BOT-BC116675  Carex subfusca Henry M. Pollard 1948-8-4 21 -2 Humboldt Orleans Mt. 1371 Comment
  UC197216  Carex tumulicola Joseph P. Tracy 4104 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC115540  Carex unilateralis Joseph Prince Tracy 1930-6-15 8756 Humboldt Bordering a pond, Dobbyn Creek 152 Comment
  RSA152530  Carex unilateralis Joseph P. Tracy 1946-5-30 17539 Humboldt Wet gully in grassland near Bridgeville. 457 Comment
  RSA167278  Carex utriculata Joseph P. Tracy 1950-8-7 19264 Humboldt Meadow at Box Camp, Trinity Summit. 1524 Comment
  UC1152051  Carex utriculata Joseph P. Tracy 1950-7-25 19065 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC7088  Carex viridula H. E. Parks Sep 1934 5157 Humboldt Dry Lagoon Comment
  HSC2872  Carpobrotus chilensis S. J. Hawks 1965-5-14 58 Humboldt 1 mi. W of Mckinleyville, past the end of Murray Rd. Comment
  CDA6950  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt Luke s Prairie, on ridge 1 mile north above Bull Creek, ca. 2 miles west of Dyerville. 0 Comment
  RSA12515  Castanopsis Carl B. Wolf 1934-7-3 5921 Humboldt 6 mi. from Martin's Ferry on Orick Rd. 305 Comment
  SEINET12027436  Castanopsis chrysophylla J. P. Tracy 1950-1 19239 Humboldt Grouse Mtn 1524 Comment
  UC902223  Castilleja affinis subsp. litoralis Joseph P. Tracy 1947-5-24 17692 Humboldt Big Lagoon 152 Comment
  HSC90779  Castilleja ambigua subsp. humboldtiensis Peter Sorensen 1976-7-14 Humboldt Woodley Island Comment
  UC1012232  Castilleja ambigua subsp. humboldtiensis F. W. Pennell and J. P. Tracy 1940-7-6 26086 Humboldt near mouth of Eel River (w of Lolita, Table Bluff L. H.); Table Bluff 0 Comment
  HSC99531  Castilleja arachnoidea K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 195 Humboldt Near North Trinity Mtn and Water Dog Lakes, Six Rivers National Forest. 1826 Comment
  UC582494  Castilleja arachnoidea Joseph P. Tracy 1935-7-24 14171 Humboldt near Trinity Summit Ranger Station; Trinity Summit 1828 Comment
  HSC40935  Castilleja exserta subsp. latifolia Linda M. Barker 1976-6-1 1545 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC1011938  Castilleja exserta subsp. latifolia F. W. Pennell and J. P. Tracy 1940-7-6 26085 Humboldt w of Lolita (Table Bluff L.H.) 0 Comment
  HSC44563  Castilleja miniata Brad Klipfel 1973-7-15 183 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC56208  Castilleja miniata G. L. Clifton, Griswold 1979-8-2 12210 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  CAS-BOT-BC244879  Castilleja miniata Mrs. H. C. Cantelow 1935-5-31 836 Humboldt 15 mi. N. of Orick Comment
  JEPS25051  Castilleja pruinosa Joseph P. Tracy 1912-7-26 3862 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC1011934  Castilleja pruinosa F. W. Pennell and J. P. Tracy 1940-7-7 26091 Humboldt w of Salyer (Grouse Mountain); Grouse Mountain 1127 Comment
  HSC49985  Castilleja pruinosa M. A. Baker 1979-6-7 785 Humboldt N bank of road to Snow Mtn. 610 Comment
  UC535100  Castilleja rubicundula subsp. lithospermoides Parks and Tracy 1930-5-25 796 Humboldt vicinity Bridgeville; Laribee Valley Comment
  HSC79430  Castilleja wightii Kenneth Clark 1980-6-14 670 Humboldt Western slope of Dead Man's Gulch 145 Comment
  HSC40884  Ceanothus cordulatus Thomas W. Nelson, Jane P. Nelson 1976-6-22 2869 Humboldt On SW-facing slope at Goat Mtn. lookout 1666 Comment
  RSA25803  Ceanothus foliosus Carl B. Wolf 1941-7-29 11093 Humboldt Along the Redwood Hwy, 0.7 mile N of jct with Hwy 1 from Ft. Bragg 61 Comment
Read comments
Jun 7 2011
  CAS-BOT-BC49656  Ceanothus foliosus var. foliosus Carl B. Wolf 1941-7-29 11093 Humboldt Along the Redwood Highway, 7/10 mi. no. of Jnct. with State Highway #1 from Ft. Bragg. 60 Comment
  HSC101665  Ceanothus foliosus var. foliosus J. P. Smith, J. O. Sawyer 2011-4-23 13126 Humboldt Kings Peak Road, 3.2 miles from its junction with Shelter Cove Rd Comment
  HSC37599  Ceanothus foliosus var. foliosus R. Sutherland 1975-7-7 2 .7775 Humboldt Slopes of Eubanks Creek 274 Comment
  HSC101667  Ceanothus gloriosus var. exaltatus J. P. Smith, J. O. Sawyer 2011-4-23 13128 Humboldt Kings Peak Road, 3.2 miles from its junction with Shelter Cove Rd Comment
  HSC43213  Ceanothus gloriosus var. exaltatus R. Sutherland 1975-7-4 0 .4775 Humboldt 640 Comment
  HSC37052  Ceanothus incanus R. Sutherland 1975-6-3 1 .3675 Humboldt 396 Comment
  SD230281  Ceanothus incanus Louis C. Wheeler 1959-8-1 7620 Humboldt Queens Peak Mine Comment
  UC535732  Ceanothus incanus Eleanor Armstrong 1934-8-15 1187 Humboldt Richardson Grove 121 Comment
  UCD112167  Ceanothus incanus B. L. Kay 1955-4-10 s.n. Humboldt Wagner Ranch, 5 miles southwest of Garberville. Comment
  RSA46802  Ceanothus incanus Doris K. Kildale 1927-6-25 3579 Humboldt [No locality information on label.] Comment
  HSC98605  Ceanothus integerrimus Cara Witte 2007-6-5 209 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1.25 miles south of intersection with 5N04. 1405 Comment
  HSC98909  Ceanothus integerrimus Cara Witte 2007-6-14 276 Humboldt Along National Forest 1. Near Kinsey Ridge. 2 miles north of intersection with 4N06. 1319 Comment
  RSA46467  Ceanothus integerrimus var. californicus Doris K. Kildale 1927-7-3 3635 Humboldt Willow Creek Flat. Comment
  CAS-BOT-BC51212  Ceanothus parryi Carl B. Wolf 1941-7-28 11092 Humboldt Slopes along Eel River, 1 mi. so. of Miranda. 30 Comment
  HSC23274  Ceanothus pumilus D. E. Anderson, J. P. Smith 1971-7-6 - 1291 Humboldt Horse Mtn. 10 mi W of Willow Creek 1524 Comment
  SEINET12211458  Ceanothus pumilus Unknown 1986-1 60171 Humboldt At the Trinity Co. line: The Lassics, betw. Red Lassic and Lassic peaks 1768 Comment
  BLMAR806  Ceanothus thyrsiflorus Madeleine Hassett 2017-7-25 806 Humboldt Lost Coast Headlands, ~200ft down the road from Fleener Creek trailhead 75 Comment
  CAS-BOT-BC52218  Ceanothus thyrsiflorus Doris K. Kildale 1926-8-29 2598 Humboldt Blue Slide on the Van Duzen River Comment
  CAS-BOT-BC52951  Ceanothus thyrsiflorus Joseph P. Tracy 1937-5-30 15317 Humboldt Bridgeville 198 Comment
  HSC23116  Ceanothus thyrsiflorus Norman Dennis 1965-6-19 124 Humboldt 0.25 mi S and 1.0 mi. E of junction of Barry Ridge Rd. and Eureka-Bridgeville county rd., along Ashfield Ridge Rd., 5 mi. SE of Kneeland 793 Comment
  UCSC000467  Ceanothus thyrsiflorus A. E. Wieslander 1931-5-21 209 Humboldt China Flat, Kneeland Comment
  BLMAR733  Ceanothus velutinus Jennifer Wheeler 2015-4-23 733 Humboldt Lacks Creek, End of Pine Ridge Rd 1136 Comment
  HSC35599  Ceanothus velutinus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2014 Humboldt French Camp, Bald Hills. Comment
  HSC43224  Ceanothus velutinus R. Sutherland 1975-12-6 2 .61275 Humboldt 305 Comment
  BLMAR256  Ceanothus velutinus Jennifer Anthony-Wheeler 1997-6-20 256 Humboldt King range, Last Sale rd to be decommisioned FY98 670 Comment
  HSC56255  Ceanothus velutinus var. velutinus Walter Overton 1979-8-1 12389 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1341 Comment
  UC1199120  Centaurea X moncktonii Joseph P. Tracy 1933-8-22 12973 Humboldt at Eureka Eureka 60 Comment
  HSC37944  Centaurea jacea Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  CDA7303  Centaurea nigra Tario 1933-11-15 Humboldt Near Eureka. 0 Comment
  CDA7304  Centaurea nigra Tario 1933-11-15 Humboldt Near Eureka. 0 Comment
  UC582996  Centaurea solstitialis P. A. Munz 1936-8-9 14332 Humboldt 5 mi n of county line between Humboldt and Mendocino Counties, on south fork of Eel River Humboldt County line; Eel River Comment
  UC673086  Centaurea solstitialis Joseph P. Tracy 1940-10-17 16759 Humboldt near Dyerville (South Fork Station) 45 Comment
  UC1225826  Centaurium erythraea Joseph P. Tracy 1948-9-26 18236 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC511367  Centaurium muehlenbergii Lyman Benson 1929-7-19 1899 Humboldt Weeott Ranger Station, watershed of South Fork Eel River, seaward side of n coast mountain range South Fork Eel River 60 Comment
  UC1199381  Centromadia fitchii Joseph P. Tracy 1925-8-23 7247 Humboldt Harris Northern Coast Ranges 914 Comment
  JEPS43074  Centunculus minimus H. P. Chandler May 1901 1180 Humboldt Humboldt Bay Comment
  UC1198612  Centunculus minimus Joseph P. Tracy 1930-6-15 8747 Humboldt near Bosworth's (Northern Coast Ranges, Larrabee Creek); Northern Coast Ranges, Larrabee Creek 457 Comment
  UC906720  Centunculus minimus Joseph P. Tracy 1942-6-15 17156 Humboldt Garberville 152 Comment
  HSC72635  Cephalanthera austiniae J. P. Smith 1977-7-3 9248 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  BLMAR202  Cephalanthera austiniae Jennifer Anthony-Wheeler 1996-7-9 202 Humboldt Pilot ridge. 1280 Comment
  HSC45236  Cephalanthera austiniae Thomas W. Nelson, Jane P. Nelson 1977-7-1 3557 Humboldt N side of ridge between Bear Creek & Blanket Creek 1463 Comment
  RSA436984  Cephalanthera austiniae Gary D. Wallace 1973-7-11 1250 Humboldt Eastern part of Prairie Creek Redwoods State Park 427 Comment
  HSC100514  Cercis occidentalis Carl C. Marshall Apr 1887 384 Humboldt Hoopa Valley. Comment
  POM162070  Cercis occidentalis Joseph P. Tracy 1921-9-4 5950 Humboldt Trinity River Valley, near Willow Creek. Comment
  SEINET200737  Cercocarpus ledifolius Joseph P. Tracy 1935-7-30 14362 Humboldt Salmon Summit about 2 miles southwest of top of the mountain 1768 Comment
  CAS-BOT-BC276489  Chaenactis douglasii var. douglasii Joseph P. Tracy 1933-7-25 12877 Humboldt Grouse Mountain 1524 Comment
  HSC55146  Chamerion angustifolium subsp. circumvagum G. L. Clifton, Griswold 1979-8-1 12051 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC144090  Chamerion angustifolium subsp. circumvagum J. P. Tracy 1903-8-9 1938 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC70250  Cheilanthes gracillima M. A. Baker 1980-6-8 1915 Humboldt Near Buck Flat. 1554 Comment
  SEINET200795 Image available Cheilanthes gracillima J. P. Tracy 1919-9-23 5289 Humboldt Trinity Summit 1830 Comment
  UC144098  Chenopodium ambrosioides var. suffruticosum Joseph P. Tracy 1909-9-19 3091 Humboldt along railroad track near Samoa; Northern Coast Region, Region about Humboldt Bay 0 Comment
  UCR123948  Chenopodium botrys George K. Helmkamp, E. A. Helmkamp 2001-7-8 6989 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
  POM319267  Chenopodium multifidum Patricia Wilder 1968-8-21 4406 Humboldt Northern coastal arm of Humboldt Bay, ca. 1 mile SW of Samoa, in sand dunes. 15 Comment
  HSC71674  Chimaphila menziesii M. A. Baker 1980-6-26 2390 Humboldt Near Sims Creek 610 Comment
  HSC73779  Chimaphila menziesii M. A. Baker 1980-6-7 1772 Humboldt Near Brush Mtn. 1128 Comment
  RSA12553  Chimaphila menziesii C. B. Wolf 1934-7-2 5886 Humboldt Snow Camp. Mountains east of Korbel. 1372 Comment
  CAS-BOT-BC451498  Chimaphila umbellata L. B. Kildale 1930-9-9 10403 Humboldt Bald Mountain 914 Comment
  CAS-BOT-BC452228  Chimaphila umbellata Volney Rattan no date on label; presented in 1903 s.n. Humboldt Mad River Comment
  HSC54864  Chimaphila umbellata G. L. Clifton, Griswold 1979-7-25 10770 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC1409178  Chimaphila umbellata Robert F. Thorne and P. Everett 1965-8-5 35145 Humboldt King Mt. 1219 Comment
  RSA467024  Chimaphila umbellata subsp. occidentalis M. S. Jussel 1931-5-2 s.n. Humboldt 20 mi. N. of Garberville. Comment
  RSA20793  Chimaphila umbellata subsp. occidentalis C. B. Wolf 1937-8-13 9258 Humboldt North coast range, 11 mi. E. of Hoopa Valley on new road toward Trinity Summit. 1524 Comment
  HSC104293  Chloropyron maritimum subsp. maritimum Samantha E. Andres 2016-7-6 22 Humboldt Manila; trail along the disc golf course to Humboldt Bay 2 Comment
  RSA167191  Chrysanthemum segetum Joseph P. Tracy 1950-6-17 18831 Humboldt At Eureka. Comment
  UC1222286  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1950-7-31 19239 Humboldt Grouse Mountain; top of mountain 1524 Comment
  CAS-BOT-BC420344  Chrysosplenium glechomifolium Doris K. Kildale 1927-4-10 3079 Humboldt Prarie Creek, Russ Grove of Redwoods Comment
  UC1119747  Cichorium intybus H. L. Person 1932-8-7 Humboldt Korbel 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
  HSC24389  Circaea alpina subsp. pacifica J. O. Sawyer 1970-6-24 2254 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  UC34640  Cirsium arvense Chesnut and Drew 1888-8-10 Humboldt Arcata Comment
  CDA20074  Cirsium arvense E. Finley 2002-10-9 PDR 1035511 Humboldt Northwestern California; Hwy 36 at MM 31.08 E-bound. 0 Comment
  HSC12339  Cirsium arvense Steve Dorei 1970-10-26 114 Humboldt SE corner of Old Arcata Rd. and Freshwater Rd. Comment
  UCD130554  Cirsium arvense R. E. Nelson 1956-7-3 192 b Humboldt 1.5 miles south of Brush Mountain in vicinity of Salyer , Six Rivers National Forest. 792 Comment
  CAS-BOT-BC284437  Cirsium brevistylum Henry M. Pollard 1948-8-9 s.n. Humboldt Camp Creek near Orleans Comment
  SEINET11860324  Cirsium douglasii var. canescens H. E. Parks, Parks, S. T. 1947-1 24441 Humboldt South Fork Camp, Willow Creek Comment
  SEINET201022  Cirsium occidentale Joseph P. Tracy 1926-6-20 7662 Humboldt Horse Mountain lower slopes; northern coast ranges 914 Comment
  UC129512  Cirsium occidentale var. candidissimum Joseph Burtt Davy and Walter C. Blasdale 1899-6-7 5383 Humboldt near Harris Comment
  CAS-BOT-BC288717  Cirsium remotifolium Doris K Niles 1948-7-26 4 Humboldt Eel River bottom, A. D. Niles Field Comment
  HSC5378  Cirsium vulgare W. R. Rogers 1965-9-1 253 Humboldt 2 mi. N of Arcatam W side of Hwy. 101 Comment
  CAS-BOT-BC160958  Clarkia amoena subsp. amoena Doris K. Kildale 1927-7-25 3836 Humboldt Table Bluff 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
  SBBG4973  Clarkia gracilis H. and M. Dearing 1939-6-24 3701 Humboldt E of Bridgeville Comment
  JEPS43640  Clarkia gracilis subsp. sonomensis Lincoln Constance 1934-5-23 618 Humboldt upper end Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  UC183692  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1912-8-1 3957 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1071918  Clarkia purpurea subsp. viminea H. and M. Lewis 1947-6-14 422 Humboldt Highway 36 at bridge 4-119 South Fork of Van Duzen River Comment
  UC672996  Claytonia parviflora subsp. parviflora Joseph P. Tracy 1937-3-17 15285 Humboldt Willow Creek; Trinity River Valley 152 Comment
  HSC17681  Claytonia perfoliata S. R. Johnson 1965-3-28 24 Humboldt 1 mi. N of Luffenholtz Beach Comment
  UC494168  Claytonia perfoliata subsp. perfoliata H. E. Parks, J. P. Tracy 1930-5-25 877 Humboldt Laribee Valley Comment
  UC161028  Claytonia rubra subsp. depressa Joseph P. Tracy 1911-5-21 3188 Humboldt Eureka; Northern Coast Region Comment
  CHSC13604  Claytonia sibirica A. R. Morrison 1974-4-27 Humboldt Scattered in Redwood understory ca. 1.5 mi. off Hwy. 101 on Westhaven Rd., Trinidad. 42 Comment
  HSC17734  Claytonia sibirica Harvey Doerksen 1962-5-4 1 Humboldt 1/4 mi. W of Korbel on S side of Mad River Comment
  HSC27888  Claytonia sibirica Clifton Raymond Chesbrough 1973-6-19 72 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  RSA137345  Claytonia sibirica I. L. Wiggins 1957-6-20 14129 Humboldt East side of highway, Trinidad Comment
  SD51264  Claytonia sibirica Darley F. Howe 1961-8-1 3114 Humboldt 12.7 miles north of Arcata on #101 Comment
  SEINET11931359  Claytonia sibirica Unknown 1977-1 2 Humboldt S end of Patricks Point State Park, ca 0.2 km W of hwy 101 & 5 km N of Trinidad 200 Comment
  HSC78577  Claytonia washingtoniana C. E. Fellows 1970-4-18 258 Humboldt NE end of Big Lagoon, E side of Hwy. 101 Comment
  UC249703  Clematis ligusticifolia Joseph P. Tracy 1921-9-4 5956 Humboldt near Willow Creek (Trinity R. Valley); Northern Coast Ranges, Trinity R. Valley 152 Comment
  HSC14644  Clianthus puniceus R. A. Magie 1964-5-3 58 Humboldt 2 mi. N of Trinidad on old Hwy. to Crescent City. Comment
  BLMAR187  Clinopodium douglasii Donald Hazlett 1994-6-7 187 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC499343  Clintonia andrewsiana Marcus E. Jones 1924-4-28 s. n. Humboldt Scotia Comment
  SEINET3991733  Clintonia andrewsiana Unknown 1914-5-17 Humboldt Freshwater Creek 305 Comment
  HSC70392  Collinsia grandiflora M. A. Baker 1980-6-8 1908 Humboldt Near Buck Flat. 1554 Comment
  UC41802  Collinsia grandiflora W. C. Blasdale 1896-6-7 Humboldt Kneeland's Comment
  JEPS25056  Collinsia grandiflora Joseph P. Tracy 1922-5-29 6077 Humboldt South Yager Creek Valley 762 Comment
  UC582462  Collinsia grandiflora Joseph P. Tracy 1930-6-21 8781 Humboldt Larrabee Valley; North Coast Ranges; Larrabee Valley 701 Comment
  HSC39196  Collinsia greenei D. E. Anderson, J. P. Smith 1971-7-6 - 1329 Humboldt 1.0 mi. W of Pine Ridge Summit, 6 mi. E of junction with Redwood Valley Rd. Comment
  HSC97485  Collinsia linearis Cara Witte 2007-5-23 94 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 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
  JEPS6219  Collinsia parviflora Joseph P. Tracy 1933-6-13 12567 Humboldt w Hoopa (near summit on rd from Hoopa w to Bair's); Hoopa Mtn 1066 Comment
  UC1196839  Collinsia rattanii Joseph P. Tracy 1933-5-14 12173 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC56008  Collomia heterophylla Overton, Butler 1979-7-31 11489 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  UC879765  Collomia heterophylla Elizabeth Parsons Hawver 1915-6-1 Humboldt Carlotta Comment
  HSC45808  Collomia heterophylla J. P. Smith, Steve Selva 1970-6-30 4139 Humboldt Comment
  HSC36634  Collomia tracyi Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1907 Humboldt N side of Pine Mtn. Comment
  HSC45406  Collomia tracyi Thomas W. Nelson, Jane P. Nelson 1977-7-4 3609 Humboldt Along road N from Alder Springs 1524 Comment
  UC23379  Collomia tracyi Harley P. Chandler June 1901 1475 Humboldt Klamath River North Coast Ranges 426 Comment
  HSC96489  Comarum palustre Gordon Leppig 1997-8-3 634 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  UC1222614  Conium maculatum Joseph P. Tracy 1950-6-8 18768 Humboldt near Petrolia (Hills between town and ocean) Comment
  HSC38916  Conium maculatum J. P. Smith 1973-5-26 6794 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  SEINET10454738  Conium maculatum Mary Susan Taylor 1977-8-5 Taylor 1433 Humboldt Abundant around bridge over Eel River, at the turnoff from Hwy 1 to Ferndale, in Fernbridge. 2 Comment
  CAS-BOT-BC181555  Coptis laciniata Doris K. Kildale 1927-7-17 3753 Humboldt Bug Creek 792 Comment
  UC56317  Corallorhiza maculata Joseph Burtt Davy 1899-6-11 5421 Humboldt Hubbard's to Elk Prairie Comment
  HSC16581  Corallorhiza mertensiana D. E. Anderson 1965-6-1 3781 Humboldt Near Brush Mtn. lookout 1189 Comment
  HSC16585  Corallorhiza striata D. E. Anderson 1965-5-15 3684 Humboldt About 7 mi. N of Hoopa on Bloody Camp Prairie Rd. Comment
  HSC63191  Corallorhiza striata M. A. Baker 1979-6-28 940 Humboldt Comment
  UC1409054  Cordylanthus maritimus subsp. palustris Robert F. Thorne and P. Everett 1965-8-7 35209 Humboldt Samoa Peninsula 0 Comment
  HSC58546  Cordylanthus tenuis subsp. viscidus Overton, Butler 1979-7-24 9568 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  CDA39436  Cordyline australis Gordon Leppig 2004-6-8 2165 Humboldt Eureka, abandoned railroad tracks at Second St. and Commercial Ave. Comment
  POM356151  Corethrogyne filaginifolia var. californica M. B. Dunkle 1926-8-18 4827 Humboldt Moonstone Beach Comment
  CAS-BOT-BC212006  Cornus nuttallii Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC70920  Cornus nuttallii R. York 1980-5-18 562 Humboldt Near Black Mtn. 1006 Comment
  UC35022  Cornus nuttallii Chesnut and Drew 1888-7-9 Humboldt Kneeland Prairie Comment
  RSA0019453  Cornus occidentalis C. B. Wolf 1937-8-13 9251 Humboldt North Coast Range, 11 mi. E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  CAS-BOT-BC212176  Cornus sericea Thomas Nelson 1977-6-3 3385 Humboldt Mad River at south end of Mad River Bridge, North Coast Range 53 Comment
  CAS-BOT-BC212179  Cornus sericea Joseph P. Tracy 1929-8-18 8653 Humboldt Dinsmore's Ranch, on Van Duzen River opposite Buck Mountain 670 Comment
  HSC99428  Cornus sericea subsp. sericea K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 77 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC183572  Cornus sericea subsp. sericea Joseph P. Tracy 1912-10-20 4010 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC502981  Cornus sericea subsp. sericea Joseph P. Tracy 1929-8-18 8654 Humboldt opposite Buck Mt. (on Van Duzen R., Dinsmore's Ranch); Northern Coast Ranges, Van Duzen R., Dinsmore's Ranch 670 Comment
  UC726593  Cornus sericea subsp. sericea A. A. Heller 1923-7-10 13793 Humboldt Eel R. between Scotia and Pepperwood; Eel R. Comment
  CAS-BOT-BC210537  Cornus sessilis L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek road Comment
  HSC38648  Coronopus didymus J. P. Smith 1970-11-18 4629 Humboldt HSU campus Comment
  BLMAR230  Corylus cornuta subsp. californica Jennifer Anthony-Wheeler 1996-9-26 230 Humboldt King range, growing alng Bear creek between Wailaka & Nadelos campgrounds 548 Comment
  RSA134173  Corylus cornuta var. californica P. C. Everett, E. K. Balls 1959-10-24 23956 Humboldt 4.7 miles S from Bluff Creek, Hwy 96 from Orleans to Weitchpec. 122 Comment
  RSA46830  Corylus cornuta var. californica Doris K. Kildale 1926-8-31 2602 Humboldt Mattole Valley, at Geo. H. Mineis. Comment
Read comments
Jan 24 2013
  SEINET11859878  Cotula australis J. P. Tracy 1943-4-10 17414 Humboldt Eureka Comment
  HSC39804  Cotula coronopifolia Peter Sorensen 1976-8-6 Humboldt King Salmon Comment
  UC485352  Cotula coronopifolia Joseph P. Tracy 1912-7-21 3775 Humboldt Alton; Northern Coast Region 30 Comment
  HSC5429  Cotula coronopifolia Rollin Sparrowe 1962-4-28 4 Humboldt In sloughs N and S of road Comment
  UCD130903  Cotula coronopifolia H. E. Parks 1941-9-1 24211 Humboldt Little River State Park. Comment
  HSC77347  Crassula connata L. P. Janeway 1983-5-1 256 Humboldt W of Samoa Rd. and N of Coast Guard lands 6 Comment
  UC275488  Crassula connata var. eremica Joseph P. Tracy 1925-5-17 6981 Humboldt near the S. Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  POM301287  Crataegus suksdorfii Joseph P. Tracy 1948-9-12 18205 Humboldt Box Camp Meadow, Trinity summit. 1463 Comment
  SD39858  Crepis capillaris Edith A. Purer 1932-7-30 4683 Humboldt South of Orick. Comment
  POM92411  Crepis capillaris L. R. Abrams 1922-6-25 8234 Humboldt 2 miles south of Fortuna Comment
  HSC74285  Crepis pleurocarpa M. A. Baker 1980-7-11 2783 Humboldt Near Red Mtn. 1341 Comment
  UC581732  Crepis pleurocarpa Joseph P. Tracy 1935-7-28 14332 Humboldt Brett Hole Trinity Summit (head) 1828 Comment
  RSA43684  Crepis setosa H. M. Pollard 1948-8-8 s.n. Humboldt Roadside between Orleans and Camp Creek Comment
  UC1225821  Crepis setosa Joseph P. Tracy 1947-7-13 17769 Humboldt Hors-Linto Creek; near mouth 152 Comment
  HSC100428  Crocidium multicaule Carl C. Marshall Apr 1887 366 Humboldt Hoopa Valley, near Supply Creek. Comment
  UC1364266  Crocosmia X crocosmiiflora T. C. Fuller 1968-7-30 17446 Humboldt 1 mi s Fields Landing (nw corner of overpass of Hwy 101 freeway to Garberville) Comment
  HSC100402  Cryptantha Carl C. Marshall 428 Humboldt Perrington. Comment
  POM174073  Cryptantha flaccida Joseph P. Tracy 1918-7-6 5047 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  UC1239656  Cryptantha flaccida Joseph P. Tracy 1937-7-19 15455 Humboldt nw slope Buck Mountain; Northern Coast Ranges 914 Comment
  JEPS67641  Cryptantha intermedia Harley P. Chandler Jun 1901 1302 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC57211  Cryptantha torreyana Griswold, Butler 1979-7-12 7246 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  UC1239651  Cryptantha torreyana Joseph P. Tracy 1926-7-5 7732 Humboldt Valley of South Yager Creek 762 Comment
  HSC70813  Cryptogramma acrostichoides Gail Newton 1980-7-24 1779 Humboldt Near Somes Mtn. 1615 Comment
  HSC74455  Cryptogramma acrostichoides Gail Newton 1980-8-10 2005 Humboldt Near Blake Mtn. 1798 Comment
  UC63992  Cupressus lawsoniana Mrs. M. H. Manning 1901-10-1 Humboldt near Hupa (Redwood trail) 762 Comment
  UC604649  Cuscuta campestris Joseph P. Tracy 1938-8-28 16138 Humboldt Stone Lagoon Beach 6 Comment
  SEINET5785849 Image available Cuscuta salina var. major C. C. Harris, S. K. Harris 1941-8-28 Humboldt Humboldt Bay near Table Bluff Comment
  HSC6395  Cuscuta subinclusa J. P. Tracy 1924-7-20 6736 Humboldt Brannan Mtn. on Willow Cr. Rd. 1006 Comment
  UC582719  Cuscuta suksdorfii Joseph P. Tracy 1937-8-12 15639 Humboldt Snow Camp 1402 Comment
  UC154093  Cyclospermum leptophyllum Joseph P. Tracy 1900-9-10 944 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CAS-BOT-BC190223  Cynodon dactylon Henry M. Pollard 1948-7-18 s.n. Humboldt Orleans. Comment
  HSC74112  Cynoglossum grande R. York 1980-5-23 634 Humboldt Near Buck Mtn. 1524 Comment
  HSC48477  Cynoglossum occidentale Brad Klipfel 1974-7-23 455 Humboldt Ridge running E of Horse Mtn. Comment
  RSA91852  Cynosurus echinatus Joseph P. Tracy, H. E. Parks 1933-6-11 12542 Humboldt Near Miranda 152 Comment
  UC668029  Cyperus bipartitus Joseph P. Tracy 1931-9-7 9664 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  RSA183563  Cyperus eragrostis D. E. Anderson 1963-9-29 2848 Humboldt Fish Lake. Comment
  SEINET200970  Cyperus melanostachyus Joseph P. Tracy 1920-8-15 5383 Humboldt Klamath River at Bluff Creek. 152 Comment
  CAS-BOT-BC70542  Cystopteris fragilis Ira L. Wiggins 1957-6-21 14138 Humboldt E side of road, 1 mi. S of Garberville Comment
  HSC14675  Cytisus scoparius William J. Ferlatte 1963-4-21 19 Humboldt Near 11th and A St., Arcata Comment
Read comments
Dec 18 2011
  HSC9539  Dactylis glomerata E. W. Styskel 1963-5-16 25 Humboldt 3.0 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  UCSC000025  Dactylis glomerata H. S. Yates 1936-6-23 5852 Humboldt 2 miles E. of the Mad River Mad River - Eureka 30 Comment
  RSA126598  Dactylis glomerata H. S. Yates 1936-6-23 5852 Humboldt 2 miles E of mouth of Mad River. 30 Comment
  HSC1967  Danthonia californica William J. Ferlatte, B. D. Rogers 1966-6-15 2108 Humboldt Larabee Valley 762 Comment
  UC37946  Danthonia californica Harley P. Chandler May, 1901 1239 Humboldt North Coast Ranges; Redwood Belt 91 Comment
  UC526850  Danthonia californica Joseph P. Tracy 1934-7-12 13377 Humboldt Big Lagoon 3 Comment
  UC922016  Danthonia californica Joseph P. Tracy 1938-6-17 15951 Humboldt slopes 1/2 mi back from ocean; Cape Mendocino 152 Comment
  UCD60985  Danthonia californica E. B. Copeland 1930-6-5 Humboldt Scotia. Comment
  UC1152019  Danthonia unispicata Joseph P. Tracy 1951-7-26 19593 Humboldt Redwwod Creek Board Camp Mountain (extreme head, n side of mt.) Comment
  HSC20254  Darmera peltata Paul Shields May 1955 Humboldt 4 mi. W of Hoopa Comment
  JEPS49588  Darmera peltata Harley P. Chandler May 1901 1233 Humboldt Redwood Belt; North Coast Ranges 91 Comment
  UC402443  Darmera peltata P. E. Goddard 1901-7 173 Humboldt Klamath River Comment
  CAS-BOT-BC420361  Darmera peltata Volney Rattan 1882-1-1 s.n. Humboldt unspecified Comment
  JEPS49584  Darmera peltata W. L. Jepson 1902-6-30 1958 Humboldt Redwood Creek; Berry's Ranch Comment
  BLMAR238  Datisca glomerata Jennifer Anthony-Wheeler 1997-6-13 238 Humboldt King range, growing in wet seep along old queen mine rd 512 Comment
  HSC59680  Daucus carota George Kirn 1977-10-1 Humboldt Eureka, open bayfront field 1/2 mi E of Hwy 255 6 Comment
  UCD127415  Daucus pusillus P. B. Kennedy 1928-7-15 s.n. Humboldt Sea Cliffe, near Trinidad. Comment
  UC183703  Delphinium decorum subsp. tracyi Joseph P. Tracy 1913-6-17 4156 Humboldt streamlet near summit Northern Coast Ranges, Buck Mountain 1219 Comment
  POM126514  Delphinium nudicaule Joseph P. Tracy 1922-4-30 6012 Humboldt Trinity River Valley, near Willow Creek. 152 Comment
  CDA24232  Delphinium nuttallianum K. Eickhoff, C. M. Witte 2005-6-15 12 Humboldt Northwestern California; 14.1 miles south of Highway 299 on NFI, 0.25 mile northeast of Grouse Mountain. Comment
  HSC63284  Delphinium nuttallianum M. A. Baker 1979-6-27 933 Humboldt Head of Oregon Creek Comment
  RSA400116  Delphinium nuttallianum M. A. Baker 1979-6-27 933 Humboldt At head of Oregon Creek. Comment
  HSC46068  Delphinium trolliifolium William J. Ferlatte, B. D. Rogers 1966-6-15 2101 Humboldt Plympton Ranch 915 Comment
  HSC99633  Delphinium trolliifolium Allan R. Marshall 1962-5-11 10 Humboldt 50 yds. in front of N side of Hwy. 299 610 Comment
  UC1196344  Delphinium trolliifolium Joseph P. Tracy 1911-7-12 3525 Humboldt on summit between Berry's (on Redwood Creek) and Three Creeks; Northern Coast Ranges 1097 Comment
  POM207103  Deschampsia beringensis Jos Burtt Davy, W. C. Blasdale 1899-06 s.n. Humboldt Eureka Comment
  RSA18060  Deschampsia beringensis C. B. Wolf 1927-8-22 794 Humboldt Big Lagoon Comment
  UCD61253  Deschampsia cespitosa Malcolm A. Nobs; S. Galen Smith 1949-8-3 1167 Humboldt 1 mile south of Fields Landing, Eel River Valley. Comment
  CAS-BOT-BC192702  Deschampsia danthonioides L. B. Kildale 1930-6-1 9768 Humboldt Klamath River at Bluff Creek Comment
  HSC54605  Deschampsia elongata Overton, Butler 1979-7-24 9689 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC9613  Deschampsia elongata R. D. Rogers 1964-5-2 32 Humboldt Janes Creek area, 1 mi. N of Arcata, logging road. Comment
  JEPS75420  Deschampsia elongata W. L. Jepson 1932-7-30 16450 Humboldt Bull Creek 121 Comment
  UC1103215  Deschampsia elongata J. P. Tracy 1899-7-22 331 Humboldt immediate vicinity of Eureka 0 Comment
  UC1103217  Deschampsia elongata J. P. Tracy 1901-4-26 1043 Humboldt 6 mi. s. Eureka (Humboldt Hill); Humboldt Hill 0 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
  UC34060  Deschampsia elongata J. P. Tracy 1901-6-10 1130 Humboldt immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC201767  Deschampsia elongata Catherine Best 1990-6-28 1395 Humboldt In the Forest Service Camp near Lassic [Lassics] Comment
  HSC26393  Dicentra formosa Brad Klipfel 1973-4-24 3 Humboldt Blue Lake on Hwy. 299 Comment
  UC1586878  Dicentra formosa Juha Pykala and D. H. Norris 1987-6-10 1525 Humboldt about 1-2 mi s Onion Lake (on Onion Lake Road); Six Rivers National Forest 1300 Comment
  CAS-BOT-BC209193  Dichanthelium acuminatum subsp. acuminatum Joseph P. Tracy 1931-5-17 9427 Humboldt Along river, Willow Creek, Trinity River Valley. 152 Comment
  CAS-BOT-BC209194  Dichanthelium acuminatum subsp. acuminatum Joseph P. Tracy 1931-5-17 9427 Humboldt Along river, Willow Creek, Trinity River Valley. 152 Comment
  UC1198164  Dichelostemma congestum Joseph P. Tracy 1917-6-17 4814 Humboldt near Field's Landing (Still Farm, near Humboldt Bay); Northern Coast Ranges, Humboldt Bay 15 Comment
  UC1198187  Dichelostemma ida-maia Joseph P. Tracy 1912-7-26 3860 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC30062  Dichelostemma ida-maia Mrs. M. H. Manning May 1901 6 Humboldt near Hupa Comment
  CAS-BOT-BC501018  Dichelostemma ida-maia L. R. Abrams 1918-6-15 7108 Humboldt Brannan Mt. near Willow Creek 1371 Comment
  HSC3027  Dichelostemma ida-maia H. E. Parks, S. T. Parks Jun 1928 259 Humboldt Gills 305 Comment
  RSA183023  Dichelostemma ida-maia Lee W. Lenz 1966-5-24 24658 Humboldt W of Berry Summit, US 299. Comment
  RSA70148  Dichelostemma ida-maia F. W. Peirson 1926-7-12 7030 Humboldt W slope of Coast Range back of Orick. Comment
  UC1198185  Dichelostemma ida-maia Joseph P. Tracy 1934-7-22 13489 Humboldt road from Iaqua to Bridgeville (at crossing of North Yager Creek); North Yager Creek 396 Comment
  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
  CHSC579  Dipsacus fullonum M. Anthony 1960-5-14 Humboldt Arcata. Comment
  UCD137492  Dipsacus fullonum Joseph P. Tracy 1937-8-3 15610 Humboldt along Mad River, near Blue Lake. 15 Comment
  UCR67631  Disporum smithii Michael A. Hanson 1990-5-21 70 Humboldt Arcata, 0.5 mi (0.8 km) east of Humboldt State University Life Science Building. 159 Comment
  RSA367638  Disporum smithii Hutchinson 1927-05 s.n. Humboldt [No locality information provided] Comment
  UCSC000139  Disporum smithii R. Stahelin 1933-5-17 s.n. Humboldt Arcata City Park - Eureka Comment
  HSC45111  Distichlis spicata R. Sutherland 1978-4-25 7 .25478 Humboldt 9 Comment
  SEINET3928433  Distichlis spicata var. spicata Thomas Nelson, Doris Niles 1979-5-19 4693 Humboldt Ferndale Quad. Tidal marsh mouth of Eel River at Crab Park. North of County Park.; 0 Comment
  JEPS14441  Downingia elegans W. L. Jepson 1927-7-3 12363 Humboldt Miranda South Fork of Eel River 228 Comment
  UCD55079  Downingia willamettensis Rachel Foster 1970-1 F70- 96 -11 Humboldt Hydesville. Adjacent to Hydesville School. Comment
  SD92987  Dryopteris expansa W. Bertsch 1953-7-30 216 Humboldt Duncan Grove, Redwood Forest Comment
  JEPS49929  Dudleya farinosa W. L. Jepson 1902-8-4 2144 Humboldt Cape Mendocino 1 Comment
  UC1198834  Dudleya farinosa J. P. Tracy 1907-7-4 2581 Humboldt betw Little River and Trinidad 30 Comment
  HSC41210  Dysphania botrys Thomas W. Nelson, Jane P. Nelson 1977-9-3 3724 Humboldt Along Forest Service Rd. to N of Alder Springs 1524 Comment
  SEINET200660 Image available Echinochloa crus-galli J. P. Tracy 1938-8-14 16115 Humboldt Trinity River Valley near the South Fork 183 Comment
  CAS-BOT-BC113437  Eleocharis acicularis Henry M. Pollard 1945-8-28 s.n. Humboldt Near Orleans. Pond near Harley place. Comment
  UC1152070  Eleocharis bella Joseph P. Tracy 1949-6-25 18355 Humboldt 1463 Comment
  CAS-BOT-BC112843  Eleocharis macrostachya Joseph Prince Tracy 1934-7-30 13506 Humboldt Dry Lagoon along coast in front of South End of Stone Lagoon. 3 Comment
  CAS-BOT-BC112844  Eleocharis macrostachya Carl B. Wolf 1927-8-22 793 Humboldt Big Lagoon Comment
  UC1103666  Eleocharis macrostachya Joseph P. Tracy 1935-5-25 13849 Humboldt Fort Seward 106 Comment
  CAS-BOT-BC112845  Eleocharis macrostachya Malcom A. Nobs; Stanley Galen [S. Galen] Smith 1949-8-11 1346 Humboldt Marshes on eastern side of Big Lagoon. Comment
  UC1103661  Eleocharis obtusa Joseph P. Tracy 1920-8-15 5365 Humboldt Klamath River at Bluff Creek Northern Coast Ranges 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
  HSC96564  Eleocharis pachycarpa Gordon Leppig 1997-8-3 648 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  RSA246895  Eleocharis radicans Robert F. Thorne, Percy C. Everett 1965-8-9 35342 Humboldt Along Highway 101 about 3 miles north of Eureka. 2 Comment
  CAS-BOT-BC197346  Elymus W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek & Eel River Comment
  HSC9745  Elymus glaucus subsp. glaucus D. E. Anderson 1962-7-10 2249 Humboldt Luffenholtz Beach, about 2 mi. S of Trinidad along old Hwy. 101 Comment
  CHSC35546  Elymus multisetus James Payne Smith Jr. 1977-7-3 9256 Humboldt Six Rivers National Forest. Along Forest Service Road 13N01, 3 miles from its junction with State Route 36. 548 Comment
  HSC33187  Empetrum nigrum Gary S. Lester, Linda M. Barker 1975-3-29 600 Humboldt Elk Head, N of Trinidad Head 15 Comment
  JEPS39208  Epilobium brachycarpum Joseph P. Tracy 1917-9-3 4854 Humboldt lower w slopes of mt. Northern Coast Ranges, Grouse Mt., Janes Ranch 914 Comment
  UC583055  Epilobium brachycarpum P. A. Munz 1936-8-13 14381 Humboldt 10 mi w Willow Creek Comment
  HSC55011  Epilobium ciliatum G. L. Clifton 1979-7-31 11379 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  RSA181877  Epilobium hallianum Joseph P. Tracy 1931-6-28 9589 Humboldt Northern Coast Ranges: Buck Mountain, lower foothills of its northwest slope 762 Comment
  HSC67190  Epilobium minutum Thomas W. Nelson, James Nelson 1980-6-10 5426 Humboldt Along NE side of Red Mtn. 1433 Comment
  CHSC12031  Epilobium septentrionale R. N. Bowman 1971-9-12 51 Humboldt Located ca. 1.7 mi se of Myers Flat off of Hwy 101. Ca. 4 ft. above s fork Eel River on e bank. 1066 Comment
  HSC16556  Epilobium septentrionale C. B. Wolf 1927-8-30 1235 Humboldt 2 mi. S of Petrolia on the Matole River near the road crossing the river Comment
  UC249614 Image available Epilobium septentrionale Joseph P. Tracy 1921-8-21 5942 Humboldt Mouth of South Fork of Trinity River; Northern Coast Ranges; Humboldt Co. 152 Comment
  HSC102004  Equisetum arvense M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 905 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC60046  Equisetum arvense M. A. Baker 1978-5-6 508 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  SEINET200604 Image available Equisetum arvense J. P. Tracy 1935-7-27 14292 Humboldt Trinity Summit open places at McKay Prairie 1586 Comment
  UC1239785  Equisetum arvense Joseph P. Tracy 1949-6-25 18357 Humboldt Box Camp Meadow Trinity Summit 1463 Comment
  JEPS60127  Equisetum hyemale subsp. affine Joseph P. Tracy 1937-3-21 15234 Humboldt Van Duzen River near Grizzly Creek Grizzly Creek; Van Duzen River 91 Comment
  CAS-BOT-BC57162  Equisetum hyemale subsp. affine Joseph P. Tracy 1928-6-17 8456 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CHSC94942  Equisetum laevigatum K. Lang; J. Lang 2005-3-14 13 Humboldt Trinidad, N. California coast. 51 Comment
  UC1239787  Equisetum telmateia subsp. braunii Joseph P. Tracy 1909-3-7 2945 Humboldt immediate vicinity Eureka 0 Comment
  HSC79438  Equisetum telmateia subsp. braunii Kenneth Clark 1980-6-14 699 Humboldt Shelter Cove, W slope above Dead Man's Gulch 91 Comment
  CAS-BOT-BC204430  Eragrostis cilianensis Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  CAS-BOT-BC213558  Eragrostis hypnoides Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans Region Comment
  RSA10056  Eragrostis hypnoides Joseph P. Tracy 1931-9-7 9663 Humboldt Trinity River Valley, at Willow Creek. Comment
  CAS-BOT-BC213623  Eragrostis mexicana subsp. virescens Henry M. Pollard 1946-8-14 s.n. Humboldt Orleans Comment
  HSC68152  Erechtites glomeratus J. O. Sawyer, J. P. Smith 1975-5-24 8081 Humboldt Off Samoa Blvd. across from the boat landing Comment
  CAS-BOT-BC131507  Ericameria arborescens H. E. McMinn 1922-8-3 476 Humboldt Mt. slope - above S.F., Eel River Comment
  HSC48317  Ericameria greenei Brad Klipfel 1973-8-3 307 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC57167  Erigeron aliceae Overton, Butler 1979-7-26 9972 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  UC1199409  Erigeron biolettii Joseph P. Tracy 1933-9-9 13076 Humboldt along river near Garberville; South Fork Eel River 152 Comment
  RSA93185  Erigeron biolettii F. W. Peirson 1923-7-9 3877 Humboldt Humboldt County State Park Comment
  UCR51767  Erigeron bloomeri var. nudatus H. E. Parks 1937-1 24- 22 Humboldt North Coast, Spruce Cove, Trinidad 61 Comment
  CAS-BOT-BC296107  Erigeron foliosus var. confinis Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  RSA259579  Erigeron foliosus var. confinis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2011 Humboldt French Camp, Bald Hills Comment
  UC581724  Erigeron foliosus var. mendocinus Joseph P. Tracy 1930-7-4 8829 Humboldt Bull Creek to Mattole Road (near the summit of ridge) 762 Comment
  CAS-BOT-BC308848  Erigeron glaucus Doris K. Kildale 1926-5-15 1975 Humboldt Fleener Creek Comment
  UC1557909  Erigeron glaucus J. Semple and S. Heard 1986-8-17 8501 Humboldt off US 101 just s Little River State Beach; Clam Beach County Park Comment
  HSC74424  Erigeron klamathensis Gail Newton 1980-7-24 1766 Humboldt Near Somes Mtn. 1615 Comment
  POM357558  Erigeron philadelphicus B. C. Templeton 1964-6-13 10184 Humboldt Along old Hwy. 101 near Trinidad Comment
  UC169037  Erigeron philadelphicus var. philadelphicus Joseph P. Tracy 1912-7-4 3725 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC1223010  Erigeron robustior Joseph P. Tracy 1942-7-4 17370 Humboldt lower foothills of its nw slope Buck Mountain 762 Comment
  UC87665  Erigeron strigosus var. strigosus Harley P. Chandler June 1901 1402 Humboldt Klamath River North Coast Ranges 243 Comment
  RSA44298  Eriodictyon californicum H. M. Pollard 1945-9-1 s.n. Humboldt Road to Redcap Creek. Comment
  HSC100720  Eriodictyon glutinosum Carl C. Marshall Jun 1886 303 Humboldt Pine Creek and E of Hoopa. Comment
  HSC76606  Eriogonum compositum Teresa Prendusi 1981-7-21 280 Humboldt Near Whiteys Peak 1646 Comment
  HSC35695  Eriogonum compositum var. compositum Thomas W. Nelson, B. Reinhardt 1975-7-30 2102 Humboldt Beside road out Whiting Ridge Comment
  CAS-BOT-BC259150  Eriogonum latifolium Marcus E. Jones 1931-7-12 28806 Humboldt Alton Comment
  CAS-BOT-BC259159  Eriogonum latifolium Dr. A. Kellogg; W. G. W. Harford 1868-1-1 881 Humboldt Shelter Cove Comment
  HSC39955  Eriogonum latifolium Linda M. Barker 1976-6-22 1615 Humboldt 3 mi. W of Arcata Comment
  HSC43069  Eriogonum latifolium J. P. Smith 1971-10-6 4982 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC17298  Eriogonum latifolium D. E. Anderson 1961-9-22 1829 Humboldt Comment
  RSA393624  Eriogonum latifolium E. A. Purer 1932-7-27 4149 Humboldt Near Samoa, near Arcata Comment
  CAS-BOT-BC259542  Eriogonum luteolum var. luteolum Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek Comment
  UC55505  Eriogonum luteolum var. luteolum P. E. Goddard 1901-7-12 82 Humboldt Hupa Comment
  RSA66020  Eriogonum nudum var. auriculatum F. W. Peirson 1923-7-10 4206 Humboldt Garberville. Comment
  CAS-BOT-BC261495  Eriogonum nudum var. nudum Harley P. Chandler 1901-6-1 1491 Humboldt Klamath River 304 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
  UC176714  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1912-7-21 3757 Humboldt Alton 30 Comment
  CAS-BOT-BC269866  Eriogonum nudum var. pubiflorum Henry M. Pollard 1945-8-26 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  HSC40826  Eriogonum strictum var. greenei Thomas W. Nelson, James Nelson 1976-7-26 3041 Humboldt Middle pk. of Mt. Lassic group 1738 Comment
  UC1585425  Eriogonum ternatum R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 UCBG 34 Humboldt on Eyesee Rd. (FS15N01) 10.2 mi n Rte. 96 (on side of rd. to left) Comment
  HSC74698  Eriogonum umbellatum Gail Newton 1981-7-24 2291 Humboldt Near Chaparral Mtn. 1512 Comment
  RSA0070496  Eriogonum umbellatum var. nelsoniorum Thomas W. Nelson 1973-7-10 1032 Humboldt Humboldt-Trinity Co. line. Mt Lassic (Signal Peak). 1790 Comment
  HSC54754  Eriogonum umbellatum var. stellatum G. L. Clifton, Griswold 1979-7-26 10278 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC55065  Eriogonum umbellatum var. stellatum G. L. Clifton, Griswold 1979-7-31 11633 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC55136  Eriogonum umbellatum var. stellatum G. L. Clifton, Griswold 1979-8-1 12001 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 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
  UC198878  Eriophorum crinigerum H. N. Bolander, Kellogg, M. D. and Co. Humboldt Red Mt. Comment
  HSC48029  Eriophyllum lanatum Brad Klipfel 1974-6-25 425 Humboldt Horse Mtn. Comment
  UC582676  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1935-6-23 13999 Humboldt French Camp Ridge 1066 Comment
  UC673208  Eriophyllum lanatum var. achilleoides Lincoln Constance and Reed C. Rollins 1942-5-12 2886 Humboldt 6 mi ne Weitchpec; Klamath-Siskiyou Region, Mouth of Bluff Creek 152 Comment
  UC90307  Eriophyllum lanatum var. achilleoides W. W. Price 1890-7-1 Humboldt Mad River Comment
  CAS-BOT-BC301180  Eriophyllum lanatum var. arachnoideum Carl B. Wolf 1927-8-29 1193 Humboldt 7 mi. s. of Ferndale & Capetown, Bear River Ridge--Mt. Glen Comment
  CAS-BOT-BC301389  Eriophyllum lanatum var. grandiflorum L. R. Abrams 1918-6-16 7154 Humboldt Willow Creek Comment
  HSC97629  Eriophyllum lanatum var. grandiflorum Cara Witte 2007-6-4 205 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  HSC8496  Erodium cicutarium D. B. Bader 1963-3-1 30 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101. Comment
  HSC89896  Erodium cicutarium Leonel Arguello 1989-6-2 Humboldt Lanphere-Christensen Dunes Preserve 3 mi. W of Arcata, end of Fernstrom-Root trail Comment
  UC1199173  Erysimum capitatum Joseph P. Tracy 1911-7-6 3350 Humboldt mt slopes along rd between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 762 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
  UC1034752  Erysimum menziesii G. B. Rossbach 1955-6-10 596 Humboldt depression in coastal dunes near Humboldt Bay lighthouse (betw. Fairhaven and end of sandy point off Eureka) Comment
  CAS-BOT-BC504307  Erythronium californicum Doris K. Kildale 1928-5-1 5983 Humboldt MacLellan Mountain 914 Comment
  SEINET3992480  Erythronium grandiflorum var. pallidum Unknown 1933-7-16 12774 Humboldt South Fork Mountain, near McKay Camp 1676 Comment
  UC1197643  Erythronium revolutum Ethel Tracy 1907-5-4 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC35061  Eschscholzia californica Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  HSC26453  Eschscholzia californica T. O. Osborne 1970-7-18 3 Humboldt Sugarloaf Rock, Cape Mendocino 76 Comment
  CAS-BOT-BC310453  Eucephalus ledophyllus var. covillei Doris K. Kildale 1925-8-17 1214 Humboldt (Near to) Trinity Summit 1917 Comment
  CDA18072  Euchiton gymnocephalus R. Spadoni 1999-7-1 s.n. Humboldt Eureka. 0 Comment
  JEPS20472  Euchiton sphaericus Joseph P. Tracy 1936-8-23 15162 Humboldt Carlotta 30 Comment
  UC1223111  Euchiton sphaericus Joseph P. Tracy 1947-9-28 17933 Humboldt Park's place Trinidad 3 Comment
  UC449999  Euchiton sphaericus Joseph P. Tracy 1918-9-1 5097 Humboldt on old Kneeland Prairie road Newells Camp (around Humboldt Bay); Northern Coast Ranges, Humboldt Bay 457 Comment
  HSC98864  Euphorbia crenulata Cara Witte 2008-8-5 992 Humboldt Forest Service Road 4N06. 1/4 mile east of intersection with National Forest 1. 1233 Comment
  HSC28197  Euphorbia helioscopia Thomas W. Nelson 1973-4-25 799 Humboldt On H.S.U. campus, beside Forestry Dept. Greenhouse. Comment
  HSC83990  Euphorbia helioscopia L. P. Janeway, C. K. Geldin-Meyers 1983-4-15 222 Humboldt Field around the new Science and Engineering Bldg., HSU campus 30 Comment
  HSC100482  Euphorbia lathyris Carl C. Marshall Jun 1885 114 Humboldt Near Arcata fields, etc. Comment
  UC502956  Euphorbia spathulata Joseph P. Tracy 1929-5-5 8578 Humboldt Miranda Northern Coast Ranges, South Fork of Eel River (slopes and groves along South Fork of Eel River) 121 Comment
  HSC5091  Eurybia radulina H. E. Parks, J. P. Tracy 1930-9-15 769 Humboldt Kneeland Bald Hills Comment
  UC1199301  Eurybia radulina Joseph P. Tracy 1930-9-14 9188 Humboldt Kneeland Prairie 762 Comment
  UC249850  Eurybia radulina Joseph P. Tracy 1924-8-10 6813 Humboldt at Blue Slide, on Van Duzen River Van Duzen River 91 Comment
  HSC79456  Festuca arundinacea Kenneth Clark 1980-4-18 600 Humboldt Above Dead Man's Gulch 137 Comment
  UC53434  Festuca californica unknown 1896-6-9 Humboldt South Fork Mts. Northern Coast Ranges Comment
  UC70921  Festuca californica Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 Humboldt Hoopa Mt. Comment
  HSC98829  Festuca californica var. californica Cara Witte 2007-5-21 70 Humboldt White Oak Opening. 1257 Comment
  RSA123475  Festuca californica var. californica H. S. Yates 1936-6-22 5848 Humboldt Willow Creek, China Flat (Humboldt) Comment
  RSA121321  Festuca elmeri H. S. Yates 1936-6-17 5690 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  UC187111  Festuca elmeri J. P. Tracy 1903-5-23 1899 Humboldt Alder Point, on Eel River Eel River 243 Comment
  UCD65925  Festuca elmeri Al Murphy 1949-6-1 Humboldt Fort Baker. Comment
  SEINET200326  Festuca myuros J. P. Tracy 1914-5-14 4432 Humboldt Northern Coast Ranges Fort Seward. 122 Comment
  CAS-BOT-BC278815  Festuca occidentalis C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  HSC9950  Festuca occidentalis E. W. Styskel 1964-5-8 83 Humboldt 2 mi. W of Rio Dell on Blue Slide Rd. Comment
  RSA10112  Festuca occidentalis Joseph P. Tracy 1932-7-17 10655 Humboldt Near Corral Prairie, Trinity summit, Klamath mountains. 1524 Comment
  UC1103725  Festuca occidentalis Joseph P. Tracy 1911-7-7 3415 Humboldt viz ridge n Willow Creek (between Willow and Campbell Creeks, near the summit); Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC187115  Festuca occidentalis Joseph P. Tracy 1911-6-4 3229 Humboldt along Little River, 5 mi from the coast Northern Coast Ranges, Little River 121 Comment
  UCD66182  Festuca occidentalis Victor Duran 1933-5-11 3410 Humboldt Van Duzen River, near Bridgeville. Comment
  HSC9947  Festuca occidentalis D. W. C 1956-4-30 Humboldt Matole River Area Comment
  BLMAR400  Festuca rubra Jennifer Anthony-Wheeler 2005-6-29 400 Humboldt South Spit, salt marsh variant 6 Comment
  HSC26371  Festuca rubra T. O. Osborne 1970-9-16 62 Humboldt Trinidad Bay, Prisoner Rock Comment
  UC187107  Festuca rubra Joseph P. Tracy 1900-7-4 890 Humboldt Humboldt Bay Northern Coast Region Comment
  UC526867  Festuca rubra Joseph P. Tracy 1927-6-8 8112 Humboldt Trinidad Northern Coast Region 60 Comment
  HSC81922  Festuca subulata Thomas W. Nelson, Jane P. Nelson 1979-7-3 4964 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  SEINET200341 Image available Festuca subulata Joseph P. Tracy 1936-6-17 14945 Humboldt Buck Mountain lower foothills of its NW slope 762 Comment
  JEPS75445  Festuca subuliflora W. L. Jepson 1934-5-7 16710 Humboldt Buckeye Prairie, Bull Creek Comment
  SEINET200725  Filago gallica J. P. Tracy 1914-5-14 4467 Humboldt Fort Seward 122 Comment
  UC584127  Fragaria chiloensis David D. Keck and J. Clausen 1935-6-16 3390 Humboldt mouth of Little River Comment
  UC1198723  Fragaria vesca Joseph P. Tracy 1935-7-25 14237 Humboldt McKay Prairie; Trinity Summit 1584 Comment
  JEPS44683  Fragaria vesca Lincoln Constance 1934-6-8 841 Humboldt Cow Creek fire trail South Fork Eel River, Bull Creek Region (from Bull Creek road, n over divide into the headwaters of Bear Creek) Comment
  UC1949135  Fragaria vesca subsp. californica Barbara Ertter with Thomas J. Delendick 1987-5-16 6933 Humboldt 3 mi E of Berry Summit on Hwy 299, ca 20 airmiles E of Arcata; on S side of road above Willow Creek Comment
  CAS-BOT-BC52741  Frangula californica subsp. californica Doris K. Kildale 1926-6-13 2162 Humboldt Briceland Bridge 1/2 west of Garberville. 114 Comment
  HSC18417  Frangula purshiana L. J. Coombes 1964-5-18 50 Humboldt 2.5 mi E of McKinleyville on Hwy. 299 Comment
  RSA698197  Fraxinus latifolia J. Russell Bruff 1937-8-18 945 Humboldt Richardson Grove, bank at Eel River Comment
  UC249521  Fraxinus latifolia Joseph P. Tracy 1922-5-29 6060 Humboldt South Yager Creek Valley Northern Coast Ranges 762 Comment
  SDSU19198  Fritillaria affinis Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3008 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
  UC30119  Fritillaria recurva W. C. Blasdale 1896-6-9 Humboldt Pilot Ridge Comment
  HSC70928  Galium aparine R. York 1980-5-18 579 Humboldt Near Black Mtn 792 Comment
  UC1222495  Galium aparine Joseph P. Tracy 1950-6-25 18891 Humboldt Burr Valley Comment
  UC1196093  Galium boreale subsp. septentrionale Joseph P. Tracy 1924-8-31 6839 Humboldt river at mouth of Bluff Creek; Klamath River 91 Comment
  RSA698804  Galium californicum J. R. Bruff 1937-8-17 916 Humboldt Richardson Grove. Comment
  JEPS52864  Galium californicum subsp. californicum Lauramay T. Dempster and Jean Colton 1963-8-7 3889 Humboldt Redwood Hwy (101) just n Richardson Grove 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
  JEPS6692  Galium californicum subsp. californicum Joseph P. Tracy 1927-5-30 8085 Humboldt between Briceland and Redway 182 Comment
  UC1143099  Galium divaricatum H. S. Yates 1936-6-23 5876 Humboldt 4 mi nne Cathay Peak; Dyerville Quadrangle Comment
  HSC103090  Galium grayanum var. nanum Sydney Carothers 2014-7-3 16 Humboldt Six Rivers National Forest, Lassics Botanical Area, Mt. Lassic, upper north slope 1775 Comment
  UC1225915  Galium muricatum Joseph P. Tracy 1942-7-1 17359 Humboldt opposite Buck Mountain (along river); Van Duzen River, Dinsmore's 762 Comment
  UC175682  Galium porrigens Joseph P. Tracy 1912-7-26 3863 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC61962  Galium triflorum Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan. Comment
  JEPS20437  Gamochaeta ustulata W. L. Jepson 1934-5-7 16714 Humboldt Bull Creek Comment
  UC1118539  Gamochaeta ustulata H. L. Person 1932-7-16 33 Humboldt Highway n Trinidad; Rock Point Quadrangle Comment
  RSA638992  Gamochaeta ustulata R. F. Thorne 1974-7-29 45067 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  UC562618  Gamochaeta ustulata Joseph P. Tracy 1936-5-29 14830 Humboldt 2 mi n Orick (on Bald Hills road) 152 Comment
  HSC37838  Garrya buxifolia Thomas W. Nelson, Jane P. Nelson 1976-2-21 2246 Humboldt Beside the Hoopa-Redwood Valley Rd. ca. 5 mi. W of Hoopa Comment
  UC1196891  Garrya buxifolia Joseph P. Tracy 1933-7-11 12676 Humboldt Horse Mountain 1402 Comment
  CAS-BOT-BC182145  Garrya fremontii L. B. Kildale 1931-10-1 s.n. Humboldt Bug Creek, Caparall Mt. 1097 Comment
  HSC33149  Garrya fremontii Thomas W. Nelson, J. Cole, Brad Klipfel 1974-5-8 1247 Humboldt Horse Mtn. area, E of microwave tower 1220 Comment
  HSC39551  Garrya fremontii Thomas W. Nelson 1976-6-10 2703 Humboldt Along ridge S of E peak of Lassic Peak 1646 Comment
  HSC43109  Garrya fremontii Brad Klipfel 1975-5-30 650 Humboldt Horse Mtn. Comment
  OBI14160  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 b Humboldt Trinity River Valley, at Willow crk Comment
  POM207448  Gastridium phleoides Joseph P. Tracy 1900-9-9 951 Humboldt Bar of Yager Creek, near Hydesville. 61 Comment
  SEINET10559581  Gastridium phleoides Harley P. Chandler Chandler 1506 Humboldt Klamath River. 427 Comment
  SEINET12518332 Image available Gastridium ventricosum Harley P. Chandler 1901-1 1506 Humboldt Klamath River, North Coast Ranges 427 Comment
  CAS-BOT-BC58909  Gaultheria shallon Mrs. Rachel Ellery 1916-4-1 s.n. Humboldt Beatrice Comment
  HSC54650  Gaultheria shallon Overton, Butler 1979-7-25 9853 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  HSC7806  Gaultheria shallon A. E. Inman 1962-5-25 Humboldt Mad River, Lindsay Creek jct., N bank Comment
  JEPS66606  Gaultheria shallon W. L. Jepson 1932-8-1 16470 Humboldt at Giant Tree, Bull Creek Bull Creek; Giant Tree, Bull Creek 182 Comment
  RSA249504  Gaultheria shallon R. F. Thorne, Percy C. Everett 1965-8-9 35287 Humboldt Big Lagoon. 3 Comment
  SBBG5537  Gaultheria shallon H. and M. Dearing 1939-5-21 3449 Humboldt near Trinidad 91 Comment
  OBI14456  Gaultheria shallon H. E. McMinn 1931-6-27 2533 Humboldt Summit above Weitchpec Comment
  HSC54658  Gayophytum diffusum subsp. parviflorum Overton, Butler 1979-7-25 9877 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  UC562499  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-8-30 13047 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UC202459  Gayophytum heterozygum Joseph P. Tracy 1919-9-18 5248 Humboldt Trinity Summit Northern Coast Ranges 1524 Comment
  UC562365  Gayophytum heterozygum Joseph P. Tracy 1936-8-8 15137 Humboldt on ridge 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  UC505122  Gayophytum humile Joseph P. Tracy 1932-7-11 10424 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC162854  Genista monspessulana J. P. Tracy 1906-4-22 2413 Humboldt immediate vicinity Eureka 0 Comment
  JEPS24349  Gentiana calycosa Joseph P. Tracy 1939-8-16 16412 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  RSA13517  Gentiana newberryi H. E. Parks 1931-07 1052 Humboldt Bishop Pine Lodge, Trinidad. 76 Comment
  RSA18142  Gentiana oregana Carl B. Wolf 1927-8-22 807 Humboldt 1 mile south of Orick. Comment
  RSA46856  Gentiana oregana Doris K. Kildale 1926-7-11 2370 Humboldt Bear River, ridge near Mt. Glen. Comment
  UC213321  Gentiana plurisetosa Joseph P. Tracy 1919-9-22 5274 Humboldt Trinity Summit Northern Coast Ranges (in meadows) 1828 Comment
  CHSC115701  Gentiana sceptrum L. P. Janeway; B. Castro 2015-9-7 11855 Humboldt North Coast. Big Lagoon fen/bog; just off the southwest corner of Big Lagoon and draining into Big Lagoon. 3 Comment
  UC1541480  Gentiana sceptrum H. E. and S. T. Parks 1930-9-14 774 Humboldt Big Lagoon Comment
  HSC24639  Gentiana sceptrum Doris K. Kildale 1925-7-26 1065 Humboldt Christmas Prairie Comment
  POM318969  Gentiana sceptrum Patricia Wilder 1968-8-21 4390 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  HSC8644  Geranium dissectum W. D. Stevens 1967-7-14 36 Humboldt Along Bear Creek, 1 mi. upstream from new Hwy. 101 bridge. Comment
  UC164809  Geranium molle Joseph P. Tracy 1906-5-6 2436 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC249572  Geranium oreganum Joseph P. Tracy 1922-6-18 6094 Humboldt Head of Middle Yager Creek Northern Coast Ranges 762 Comment
  HSC24383  Gilia capitata J. O. Sawyer 1970-6-24 2212 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC54667  Gilia capitata Overton, Butler 1979-7-25 9904 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  HSC73773  Gilia capitata Gail Newton 1980-7-11 1328 Humboldt Near Red Mtn. 1341 Comment
  UC907951  Gilia capitata subsp. capitata Joseph P. Tracy 1935-6-23 13995 Humboldt French Camp Ridge 1066 Comment
  HSC95157  Gilia capitata subsp. pacifica Gordon Leppig 2003-6-25 1990 Humboldt E side headwaters of Brushy Creek 800 Comment
  UC1197923  Gilia capitata subsp. pacifica Joseph P. Tracy 1925-5-24 7010 Humboldt Kneeland Prairie 762 Comment
  JEPS16254 Image available Gilia millefoliata J. P. Tracy 1903-6-12 1921 Humboldt immediate vicinity Eureka; ; Eureka, Humboldt Co. 0 Comment
  UC1197911  Gilia millefoliata J. P. Tracy 1905-4-30 2170 Humboldt sand hills of Ocean Beach at Samoa (opp. Eureka); , Ocean Beach at Samoa Comment
  JEPS11824  Githopsis diffusa subsp. robusta Lincoln Constance 1934-6-4 819 Humboldt Look Prairie, and Bull Creek road to Dyerville South Fork Eel River, Bull Creek Region Comment
  UC1191700  Glaux maritima Malcolm A. Nobs, S. Galen Smith 1949-8-11 1343 Humboldt at eastern shore of Stone Lagoon Stone Lagoon Comment
  POM319204  Glaux maritima Patricia Wilder 1968-8-21 4412 Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  UC1197365  Glehnia littoralis subsp. leiocarpa J. P. Tracy 1901-5-18 1097 Humboldt sand hills of Ocean Beach at Samoa opposite Eureka Comment
  UC642340  Glehnia littoralis subsp. leiocarpa Joseph P. Tracy 1927-6-26 8207 Humboldt Stone Lagoon 6 Comment
  UCD127514  Glehnia littoralis subsp. leiocarpa Linda M. Barker 1976-6-22 1626 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC34278  Glyceria elata Ken Irwin 1975-8-13 Humboldt Grogans Hole Area Comment
  SEINET200357 Image available Glyceria elata J. P. Tracy 1934-7-18 13429 Humboldt Grouse Mountain 1524 Comment
  HSC5713  Gnaphalium palustre H. E. Parks, S. T. Parks Aug 1937 24080 Humboldt Trinidad; Spruce Cove Comment
  SEINET11835895  Grindelia camporum var. camporum J. P. Tracy 1947-1 17941 Humboldt 4 mi S of Garberville, Smith Point bridge Comment
  HSC2098  Grindelia hirsutula H. E. Parks Aug 1941 24190 Humboldt Big Lagoon Comment
  HSC95525  Grindelia hirsutula Andrea Pickart 2002-7-19 184 Humboldt Arcata Marsh at Jolly Giant Creek mile .1 10 Comment
  JEPS35820  Grindelia hirsutula Rimo Bacigalupi, and L. R. Heckard 1964-7-28 8967 Humboldt 9.5 mi by road nw Petrolia (s of Cape Mendocino, in coastal scrub just back of beach) Comment
  UC479505  Grindelia hirsutula Marcus E. Jones, A. M. 1931-7-16 29143 Humboldt Arcata Comment
  UC774622  Grindelia hirsutula Carl B. Wolf 1937-9-12 Humboldt 1 mi s Arcata (on road to Eureka); Humboldt Bay 3 Comment
  CHSC56525  Grindelia stricta var. platyphylla L. P. Janeway 1983-9-24 697 Humboldt 10-30 ft from water line of Big Lagoon, at south corner of county campground. 3 Comment
  SEINET10958318 Image available Grindelia stricta var. platyphylla J. A. Moore, Julian A. Steyermark 1931-8-9 Moore 3687 Humboldt On sandy seashore at base of cliffs. 10 miles north of Trinidad, Humboldt County. Exposed sandy places along seashore. 1 Comment
  RSA509497  Grindelia stricta var. stricta R. D. Goeden 1987-9-2 21 Humboldt Cape Mendocino (Cape Ridge) on bank above Mattole Rd. 183 Comment
  UC1713302  Hackelia setosa Joseph P. Tracy 1937-7-25 15547 Humboldt Ridge 2 mi e of Grove's Prairie; Trinity Summit 1524 Comment
  HSC44542  Hastingsia alba Brad Klipfel 1973-7-15 161 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC36595  Helenium bigelovii J. O. Sawyer, Thomas W. Nelson, Linda M. Barker 1975-9-4 1305 Humboldt Megwill Point on Elkhead, N of Trinidad in Trinidad State Beach 15 Comment
  UC1199145  Helenium bigelovii Joseph P. Tracy 1932-7-14 10541 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  UC524125  Helenium bigelovii Ira L. Wiggins 1932-7-19 5891 Humboldt 1.5 mi n Trinidad Head Comment
  JEPS35531  Helenium bolanderi W. L. Jepson 1921-8-7 9325 Humboldt 0.5 to 2 mi back from ocean between Mad River Little River; Dow's Prairie Comment
  UC552839  Heliotropium curassavicum Joseph P. Tracy 1935-8-25 14747 Humboldt Stone Lagoon North Coast Ranges, Stone Lagoon 3 Comment
  UC1223170  Helminthotheca echioides Joseph P. Tracy 1950-9-10 19361 Humboldt 1 mi inland from Cape Mendocino (1/2 mi s of town, brushy hillside along the coast road); foothills of the Cape Mendocino Ridge 60 Comment
  HSC34540  Hemitomes congestum Hap Ponedel 1975-9-20 Humboldt N side of Murray Rd, 1-2 mi. from Central Ave., McKinleyville, CA. Bulk Collection 83 Comment
  CAS-BOT-BC310078  Hemizonella minima Doris Kildale 1931-5-10 10549 Humboldt Snow Camp Comment
  UC176471  Hemizonella minima Joseph P. Tracy 1911-7-7 3436 Humboldt ridge n Willow Creek (between Willow and Campbell Creeks, near the summit); Northern Coast Ranges, Brannan Mountain 1219 Comment
  CAS-BOT-BC306036  Hemizonia congesta subsp. clevelandii Joseph P. Tracy 1930-9-1 9174 Humboldt Northern Coast Ranges. Miranda; along South Fork of Eel River 121 Comment
  CAS-BOT-BC306183  Hemizonia congesta subsp. congesta J. Clausen 1932-9-18 679 Humboldt 4 miles southwest of Capetown on the road to Petrolia 213 Comment
  UC1245364  Hemizonia congesta subsp. tracyi Joseph T. Gregory 1932-6-19 184 Humboldt Buck Mt. Comment
  UC249805  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1923-6-20 6337 Humboldt near Briceland; Northern Coast Ranges 304 Comment
  UC275452  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1925-7-18 7215 Humboldt Cape Ridge Northern Coast Ranges, Cape Mendocino 304 Comment
  UC1197367  Heracleum lanatum Joseph P. Tracy 1930-7-18 9079 Humboldt near Mckay Camp S. Fork Mt. 1676 Comment
  BLMAR749  Heracleum maximum Kate McGrath 2015-7-13 748 Humboldt King range, strawberry rock grazing allotment 189 Comment
  SD53245  Heracleum maximum Darley F. Howe 1962-5-22 3301 B Humboldt 0.5 miles north of Orick on # 101 29 Comment
  UC1223123  Hesperevax acaulis var. robustior Joseph P. Tracy 1948-5-31 17983 Humboldt 1/2 mi ne Garberville 152 Comment
  JEPS11793  Heterocodon rariflorum W. L. Jepson 1932-7-24 16394 Humboldt Garberville; Tooey Ranch Comment
  HSC33081  Heuchera micrantha Thomas W. Nelson, J. D. Ackerman 1974-5-14 1269 Humboldt Baker Beach, 4 mi. S of Trinidad Comment
  CAS-BOT-BC420720  Heuchera micrantha var. diversifolia M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  UC673200  Heuchera micrantha var. diversifolia Lincoln Constance, Reed C. Rollins 1942-5-12 2883 Humboldt 6 mi ne Weitchpec (mouth of Bluff Creek); Klamath-Siskiyou Region 152 Comment
  RSA0066094  Heuchera micrantha var. diversifolia Thomas W. Nelson, Jane Nelson 1976-7-1 2904 Humboldt Along serpentine ridge N of Bear Creek. 1463 Comment
  HSC58353  Hieracium albiflorum Overton, Butler 1979-8-2 12691 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC98324  Hieracium albiflorum Jimerson, J. Pageau 1979-5-24 469 Humboldt Near Orleans 226 Comment
  RSA47102  Hieracium albiflorum Doris K. Kildale 1925-7-15 1088 Humboldt Eureka Slough. Comment
  UC1199463  Hieracium bolanderi Joseph P. Tracy 1933-7-25 12830 Humboldt Horse Mountain 1432 Comment
  CHSC10109  Hierochloe occidentalis J. W. Johnson 1962-3-14 1120 Humboldt Woods at the side of Miller Lane, Lanphere Farm, Samoa Penninsula. Comment
  SDSU1120  Hierochloe occidentalis Wayne A. Bemis, R. Becking 1964-4-17 WAB,# 256 Humboldt North Coast redwood forest Freshwater Forest, Freshwater 143 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
  HSC26180  Holcus lanatus J. P. Smith, Steve Selva 1970-6-14 3833 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC59126  Holcus lanatus Terry Roth 1979-5-26 88 Humboldt Arcata, field off Sunset Ave., near the old mill location. Comment
  HSC81934  Holcus lanatus Thomas W. Nelson, Jane P. Nelson 1979-7-3 4959 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC97396  Holcus lanatus J. Wendell Howe 1934-6-27 1278 Humboldt Arcata. Comment
  SD40095  Holcus lanatus Edith A. Purer 1932-7-30 4672 Humboldt South of Orick Comment
  UC34072  Holcus lanatus J. P. Tracy 1901-7-24 1218 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  HSC74749  Holodiscus discolor Gail Newton 1981-7-22 2261 Humboldt Near Bug Creek 1375 Comment
  HSC99588  Holodiscus discolor K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 253 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  JEPS45040  Holodiscus discolor W. L. Jepson July 16 1902 - July 23 1902 Humboldt Hupa Trail; Hupa Valley; Hupa Trail, from Hupa Valley Comment
  RSA183590  Holodiscus discolor D. E. Anderson 1963-9-1 2806 Humboldt Near Kneeland. 732 Comment
  SDSU9080  Holodiscus discolor D. F. Howe 1964-8-10 3950 Humboldt 1.8 miles from Ferndale on road to Petrolia. 305 Comment
  HSC102138  Holodiscus discolor var. discolor M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1042 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC39908  Hordeum brachyantherum J. P. Smith, Steve Selva 1970-6-30 4109 Humboldt Comment
  UC1103740  Hordeum marinum subsp. gussoneanum Joseph P. Tracy 1901-6-16 1144 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  UCD85896  Hordeum marinum subsp. gussoneanum A. H. Murphy 1951-6-1 49 Humboldt O. O. Davis Ranch. South slope of South Fork Mtn., 3 miles E of Low Gap. Comment
  HSC104057  Hordeum murinum C. Reynolds 2015-4-28 41 Humboldt Along trail through Arcata Marsh, near Interpretive Center 5 Comment
  UC1198711  Horkelia californica Joseph P. Tracy 1930-6-15 8755 Humboldt n Dobbyn Creek; Northern Coast Ranges 152 Comment
  UC14220  Horkelia californica subsp. dissita Chestnut and Drew 1888-5-1 Humboldt Grouse Creek Comment
  UCSB2822  Horkelia tridentata Constance, Lincoln; Beetle, Alan; Tracy, Joseph 1940-5-17 Humboldt Larrabee Valley, near Eureka 762 Comment
  UC1198716  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1933-6-13 12593 Humboldt near summit (on rd w from Hoopa to Bair's); Northern Coast Ranges, Hoopa Mt. 914 Comment
  UC1198719  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1908-7-24 2916 Humboldt Buck Mountain Northern Coast Ranges (nw slope) 1219 Comment
  HSC73472  Horkelia tridentata var. flavescens Gail Newton 1980-7-14 1465 Humboldt Near Last Chance Ridge. 1219 Comment
  CAS-BOT-BC537897  Horkelia tridentata var. flavescens Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  SEINET957087  Hosackia rosea H. E. Parks 1932-1 3698 Humboldt Bishop Pine Lodge, Trinidad. 61 Comment
  HSC100885  Hosackia subpinnata Carl C. Marshall 9 Humboldt No data. Comment
  UC1762196  Hydrophyllum fendleri var. albifrons Joseph P. Tracy 1932-7-15 10602 Humboldt Trinity Summit, ridges E of Corral Prairie 1828 Comment
  HSC70236  Hydrophyllum occidentale M. A. Baker 1980-6-8 1899 Humboldt Near Buck Flat. 1554 Comment
  UC35528  Hydrophyllum occidentale Chesnut and Drew 1888-7-21 Humboldt South Fork Mt. Comment
  HSC97448  Hydrophyllum occidentale C. Witte 2007-5-22 84 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1390 Comment
  UC1239768  Hydrophyllum tenuipes Joseph P. Tracy 1937-7-2 15403 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  POM253651  Hypericum androsaemum C. L. Hitchcock, J. S. Martin, A. S. Hitchcock 5442 Humboldt Woods 7 miles east of Shelter Cove. 244 Comment
  CAS-BOT-BC401233  Hypericum perforatum L. R. Abrams 1916-7-11 5973 Humboldt Alders Point Comment
  CAS-BOT-BC401234  Hypericum perforatum Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek Comment
  HSC56972  Hypericum perforatum Overton, Butler 1979-7-23 9501 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  JEPS66833  Hypericum perforatum Lincoln Constance 1934-5-26 677 Humboldt w. end of Dyerville Bridge; S. Fork Eel R., Bull Creek Region 45 Comment
  UC165829  Hypericum perforatum Joseph P. Tracy 1911-7-9 3478 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  CAS-BOT-BC401235  Hypericum perforatum Joseph P. Tracy 1933-7-21 12820 Humboldt Valley of South Yager Creek 762 Comment
  HSC23147  Hypericum perforatum Thomas W. Nelson 1970-10-18 251 Humboldt Beside Hwy. 101, 100 yds. N of bridge over Mad River Comment
  HSC39569  Hypochaeris glabra D. E. Anderson, J. P. Smith 1971-6-18 1074 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  CAS-BOT-BC206837  Iliamna latibracteata L. B. Kildale 1926-6-6 2114 Humboldt Prairie Creek near Davidson's Comment
  HSC56224  Ipomopsis aggregata G. L. Clifton, Griswold 1979-8-2 12260 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  RSA254791  Iris douglasiana Thomas W. Nelson 1974-5-7 1240 Humboldt Beside the old Kneeland Rd. Comment
  UC667107  Iris macrosiphon Joseph P. Tracy 1932-7-17 10662 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  SEINET3875940  Iris tenuissima Thomas Nelson, James Nelson 1973-5-28 935 Humboldt Mckeown Ranch north of Dinsmore.; 0 Comment
  HSC49284  Iris tenuissima J. O. Sawyer 1977-4-23 2839 Humboldt On road to Fish Lake Comment
  CAS-BOT-BC88652  Isatis tinctoria Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek, near Orleans. Comment
  HSC97440  Isolepis cernua Ivy Watson 2008-10-11 53 Humboldt N of river mouth, along small tributary E of sand dunes 4 Comment
  HSC91621  Isolepis setacea E. Mackey 1987-7-19 Humboldt Patrick's Point State Park Comment
  HSC83037  Jaumea carnosa A. L. Eicher 1985-8-17 Humboldt Marsh bordering Humboldt Bay, 0.2 mi. S of the mouth of Jacoby Creek. 1 Comment
  SEINET5782208 Image available Jaumea carnosa S. K. Harris, C. C. Harris 1939-8-26 Humboldt S shore of Humboldt Bay Comment
  HSC57117  Juncus balticus subsp. ater Walter Overton, Marvin Butler 1979-7-25 9862 Humboldt Near Ammon Creek, close to the town of Willow Creek 671 Comment
  HSC76533  Juncus balticus subsp. ater Teresa Prendusi 1981-7-23 340 Humboldt Near Black Mtn. 890 Comment
  SJSU10737  Juncus balticus subsp. ater H. T. Harvey 1977-7-7 616 Humboldt Eel R delta c. 4 mi NW of Ferndale Comment
  CHSC96448  Juncus bolanderi Gordon Leppig 1998-8-23 1070 Humboldt Big Lagoon County Park, Big Lagoon Bog. UTM Zone 10 NAD 1927, 405321E 4557202N. 3 Comment
  HSC23673  Juncus bolanderi Tim Baroni 1971-6-25 56 Humboldt Comment
  UCD170802  Juncus breweri Gordon Leppig 1998-6-14 833 Humboldt Mackerricher State Park. Ingelnook Fen just north of Fen. 6 Comment
  HSC13994  Juncus bufonius H. E. Parks, S. T. Parks Jul 1943 24254 Humboldt Spruce Cove, Trinidad 61 Comment
  HSC40945  Juncus bufonius Linda M. Barker 1976-6-1 1551 Humboldt 3 mi. W of Arcata Comment
  JEPS66935  Juncus bufonius W. L. Jepson 1921-8-7 9327 Humboldt Stone Lagoon Comment
  UC1152110  Juncus covillei Joseph P. Tracy 1934-7-14 13401 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  HSC14012  Juncus effusus subsp. pacificus W. R. Brigham 1962-5-19 24 Humboldt S of Big Lagoon. Comment
  POM170510  Juncus effusus subsp. pacificus Le Roy Abrams 1916-7-18 6102 Humboldt Arcata to Trinidad. Comment
  HSC62949  Juncus effusus subsp. pacificus M. Dean Griswold 1979-5-27 65 Humboldt W of G St., S of Arcata Comment
  HSC63875  Juncus ensifolius M. A. Baker 1979-6-29 961 Humboldt Hopkins Creek 750 Comment
  HSC99545  Juncus exiguus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 210 Humboldt Near North Trinity Mtn, 11. 5 mi E of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC104132  Juncus falcatus subsp. falcatus C. Sander 2007-8-24 33096 Humboldt Ma-le'l Dunes Cooperative Management Area. 8 Comment
  RSA42045  Juncus hesperius Ella Dales Cantelow 1936-8-28 1634 Humboldt 4 1/2 miles SW of Dinsmore s Comment
  CHSC103201  Juncus occidentalis Peter F. Zika 2009-6-16 24496 Humboldt Outer North Coast Range, between Lord-Ellis and Berry summits. Above Chezen Road, at junction with Route 299. 510 Comment
  UC183768  Juncus occidentalis Joseph P. Tracy 1911-7-7 3369 Humboldt 3 mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC1152148  Juncus phaeocephalus var. paniculatus Joseph P. Tracy 1938-7-24 16086 Humboldt corner of Pacific and A Streets Eureka Comment
  SD192840  Juncus planifolius Peter F. Zika 2008-10-19 24229 Humboldt East side of Route 101, near Exit 728 for Trinidad Beach. 110 Comment
  HSC56954  Juncus xiphioides Overton, Butler 1979-7-23 9463 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  LA209293  Keckiella breviflora Marcus E. Jones; 1931-7-16 28828 Humboldt junction, E of Arcata Comment
  CAS-BOT-BC235888  Keckiella corymbosa L. Constance 1936-7-17 1807 Humboldt Open bank between Dyerville & Bull Creek Flat, Humboldt State Redwood Park Comment
  UC146235  Keckiella corymbosa Joseph P. Tracy 1908-7-31 2935 Humboldt Bridgeville Northern Coast Ranges (rocks along Van Duzen River) 152 Comment
  HSC36460  Keckiella lemmonii Thomas W. Nelson, B. Reinhardt 1975-7-30 2108 Humboldt Beside Rd. out Whiting Ridge Comment
  HSC55592  Kelloggia galioides G. L. Clifton, Griswold 1979-7-26 9366 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  RSA43678  Kelloggia galioides H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1372 Comment
  CDA3134  Kochia iranica J. F. Hart 1958-12-1 1618 Humboldt 0 Comment
  RSA0084173  Kopsiopsis strobilacea D. E. Anderson 1965-6-1 3773 Humboldt Along Friday Hill Road, about 2 miles northeast of its junction with Titlow Hill Road. 1158 Comment
  UC205187  Kyhosia bolanderi Joseph P. Tracy 1919-9-18 5252 Humboldt meadow McKay; Trinity summit 1524 Comment
  HSC5894  Lactuca saligna R. I. Bonn 1965-10-1 Humboldt 2 mi. N of Bridgeville on May Ranch 701 Comment
  HSC43232  Lactuca saligna R. Sutherland 1976-8-6 9 .6876 Humboldt 229 Comment
  CDA39235  Lagophylla ramosissima D. Juliano 2013-8-1 PDR# 120 P06003679 Humboldt Vicinity of Carlotta, along Yager Creek, near Hwy. 36 & Central Ave. Comment
  UC1223222  Lapsana communis Joseph P. Tracy 1950-7-6 18984 Humboldt 2 mi w Bridgeville (along the Trinity Highway) Comment
  HSC31138  Lapsana communis J. O. Sawyer 1970-6-24 2269 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  CAS-BOT-BC337995  Lasthenia californica Doris K. Kildale 1928-5-15 6031 Humboldt Bug Creek, Chaparral Mountain 1524 Comment
  JEPS10074  Lasthenia californica subsp. californica Joseph P. Tracy 1932-6-26 10265 a Humboldt Valley of South Yager Creek 762 Comment
  UC195066  Lasthenia glaberrima Joseph P. Tracy 1916-6-19 4720 Humboldt Dobbyn Creek Northern Coast Ranges, Dobbyn Creek 182 Comment
  SEINET8397603  Lathyrus biflorus Unknown 1980-6-10 5432 Humboldt Blocksburg Quadrangle; northeast slope of Red Mountain. 1372 Comment
  HSC100518  Lathyrus californicus Carl C. Marshall Jul 1887 460 Humboldt Harris. Comment
  CHSC859  Lathyrus littoralis M. Anthony 1960-5-14 Humboldt Near Arcata. Comment
  HSC14738  Lathyrus littoralis Norman H. Moe 1962-5-3 Humboldt Lanphere's Place Comment
  POM277522  Lathyrus littoralis Lyman Benson 1928-7-10 s.n. Humboldt Clam Beach, Trinidad. 12 Comment
  HSC14740  Lathyrus littoralis J. P. Tracy 1906-5-13 2451 Humboldt Humboldt Bay, Ocean Beach Comment
  HSC102562  Lathyrus nevadensis var. nevadensis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1549 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC71606  Lathyrus nevadensis var. nevadensis Gail Newton 1980-6-16 199 Humboldt Near Onion Mtn. 1280 Comment
  RSA64818  Lathyrus polyphyllus C. L. Hitchcock 1949-6-8 19090 Humboldt Ca 10 miles W of Willow Creek, near Highway #299. Comment
  UC709411  Lathyrus torreyi Joseph P. Tracy 1934-7-12 13378 Humboldt Big Lagoon 152 Comment
  UCD106657  Lathyrus torreyi K. Esau 1934-5-8 s.n. Humboldt Redwood Highway near Scotia. Comment
  SEINET12154019  Lathyrus torreyi J. P. Tracy 1943-1 17430 Humboldt Willow Creek Canyon, along Trinity Hwy. East Fork of Willow Creek Comment
  POM92407  Lathyrus vestitus subsp. vestitus L. R. Abrams 1922-6-25 8245 Humboldt Near South Bay. 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
  UC1197587  Ledum glandulosum J. P. Tracy 1899-7-22 84 Humboldt immediate vicinity of Eureka 0 Comment
  UC32706  Ledum glandulosum W. C. Blasdale 1896-6-2 Humboldt West Eureka Comment
  CAS-BOT-BC534635  Lemna minor Henry M. Pollard 1956-10-13 2 Humboldt near Orleans Comment
  UC672865  Lemna turionifera Joseph P. Tracy 1932-8-21 10370 Humboldt on w slope of Chaparral Mountain, on e side of Mad River, Three Cabins Ranch Mad River; Chaparral Mountain, , Three Cabins Ranch 457 Comment
  UC1239531  Leontodon saxatilis subsp. saxatilis Joseph P. Tracy 1921-7-10 5848 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  CAS-BOT-BC89855  Lepidium nitidum Doris K. Kildale 1928-5-27 5948 Humboldt Kneeland Prairie. 853 Comment
  HSC17077  Leptosiphon androsaceus J. P. Tracy, H. E. Parks 1930-5-25 794 Humboldt Near Bridgeville 457 Comment
  UC535742  Leucanthemum vulgare Eleanor Armstrong 1168 Humboldt Richardson Grove Comment
  CAS-BOT-BC334618  Leucanthemum vulgare Henry M. Pollard 1945-9-1 s.n. Humboldt Camp Creek, Klamath River Canyon Comment
  HSC48613  Leucanthemum vulgare Mark Flippo 1978-5-18 63 Humboldt Arcata, US 101 Comment
  UC673019  Lewisia nevadensis Joseph P. Tracy 1932-7-10 10377 Humboldt open places at Corral Prairie Trinity Summit 1584 Comment
  HSC39615  Lewisia nevadensis Thomas W. Nelson, Jane P. Nelson 1976-6-15 2719 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  RSA10139  Leymus vancouverensis Joseph P. Tracy 1930-7-21 8894 Humboldt Cape Mendocino, south of point of the Cape 3 Comment
  CAS-BOT-BC436496  Ligusticum apiifolium Doris K. Kildale 1927-7-17 3763 Humboldt Bug Creek 792 Comment
  JEPS17504  Ligusticum apiifolium W. L. Jepson 1902-6-30 1959 Humboldt on Hupa Rd. near Redwook Creek Comment
  CAS-BOT-BC130642  Lilium kelloggii 1942-7-9 s.n. Humboldt Alder Point Comment
  JEPS62049  Lilium kelloggii Milo S. Baker 1923-7-29 145 Humboldt near Lawrence Creek Comment
  UC1222538  Lilium kelloggii Joseph P. Tracy 1950-6-29 18933 Humboldt 3 mi e Kneeland (on Butler Valley Road) Comment
  CAS-BOT-BC130684  Lilium occidentale M. Louise Hutchinson 1913-6-1 s.n. Humboldt Eureka Comment
  CAS-BOT-BC130685  Lilium occidentale A. M. Vollmer; L. Beane 1953-7-1 118 Humboldt unspecified Comment
  CAS-BOT-BC130683  Lilium occidentale Dr. Doris Niles; Thomas Nelson 1974-6-20 s.n. Humboldt On the Wiggens ranch just west of the garbage dump Comment
  SEINET3992215  Lilium pardalinum Unknown 1948-9-5 18196 Humboldt Trinity Summit, head of Little Hors-Linto Creek 1372 Comment
  HSC79327  Lilium pardalinum subsp. pardalinum D. K. Imper 1982-7-15 Humboldt 1/3 mi. E of Grizzly Creek State Park on Hwy. 36, bank of Van Duzen River 1220 Comment
  HSC77931  Lilium pardalinum subsp. vollmeri D. K. Imper 1982-7-23 1496 Humboldt Near Onion Lake. 1371 Comment
  CAS-BOT-BC132966  Lilium rubescens V. Rattan 1882-6-1 s.n. Humboldt unspecified Comment
  HSC57654  Lilium washingtonianum subsp. washingtonianum G. L. Clifton, Griswold 1979-7-25 10825 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  CAS-BOT-BC123073  Limnanthes douglasii var. nivea Lincoln Constance; Reed Clark Rollins 1942-5-21 3000 Humboldt 2 miles N of Harris 762 Comment
  CDA33609  Limnobium laevigatum David Juliano 2010-9-7 PDR# 1414284 Humboldt Loleta; Catfish Lake (a stream-fed natural pond), near Tompkins Hill Road and Hookton Road 0 Comment
  UC907986  Linanthus androsaceus Joseph P. Tracy 1936-6-9 14879 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  UC52737  Linanthus androsaceus W. C. Blasdale 1896-6-6 Humboldt Graham's Comment
  UC52409  Linanthus filipes Mrs. M. H. Manning Humboldt Hoopa Comment
  UC162582  Linanthus filipes Joseph P. Tracy 1911-7-9 3456 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 182 Comment
  HSC76302  Linnaea borealis subsp. longiflora Teresa Prendusi 1981-7-9 174 Humboldt Near Cedar Camp. 1268 Comment
  UC28473  Linnaea borealis var. longiflora J. Burtt Davy 1899-6-21 5741 Humboldt Trinity Summit; North Coast Ranges, Trinity Summit 609 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
  UC1103033  Listera caurina Joseph P. Tracy 1932-7-20 10740 Humboldt Forks of Tish-Tang-a-tang Creek Trinity Summit 1219 Comment
  HSC64187  Listera convallarioides J. O. Sawyer, M. A. Ericksen 1979-6-23 3388 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  RSA697655  Lithocarpus densiflorus var. densiflorus Unspecified 1936-09 s.n. Humboldt Richardson's Grove (State Park). Comment
  HSC20225  Lithophragma affine D. E. Anderson 1963-5-19 2468 Humboldt Kneeland Area Comment
  HSC32287  Lithophragma campanulatum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5633 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  UC11920  Lithophragma glabrum J. Burtt Davy 1899-6-23 5795 Humboldt Trinity Summit; North Coast Ranges, Trinity Summit 2133 Comment
  UC906704  Lithophragma heterophyllum Harold E. Parks and Joseph P. Tracy 1942-5-16 11558 Humboldt vicinity Garberville 152 Comment
  HSC27040  Lolium perenne Brad Klipfel 1973-8-24 283 Humboldt Roadside waste near Hwy. 101 Comment
  RSA254739  Lomatium californicum Thomas W. Nelson, James Nelson 1973-5-28 954 Humboldt McKeown Ranch north of Dinsmore. Comment
  JEPS16099  Lomatium californicum W. L. Jepson 1902-6-20 1892 a Humboldt Fort Seward Ranch Ridge (= Mail Ridge) 1219 Comment
  HSC66291  Lomatium ciliolatum var. ciliolatum M. A. Baker 1980-6-8 1896 Humboldt Near Buck Flat. 1554 Comment
  JEPS14213  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1927-3-27 7852 Humboldt near the S. Fork Trinity R. Valley 182 Comment
  UC183629  Lomatium dissectum var. dissectum Joseph P. Tracy 1913-6-20 4237 Humboldt lower foothills on n.w. slope Buck Mt.; Northern Coast Ranges, Buck Mt. 762 Comment
  HSC98968  Lomatium dissectum var. multifidum C. Witte 2007-5-22 76 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1422 Comment
  SEINET13944712 Image available Lomatium howellii William A. Weber 1965-1 12295 Humboldt hills 5 mi E of Bridgeville; 2100 ft alt 640 Comment
  HSC97232  Lomatium macrocarpum Kiera Freeman, Heather J. Perry 2007-6-4 1 Humboldt Cold Springs Camp, 8.0 mi. S of Hwy. 299 on NF1 1372 Comment
  CHSC97956  Lomatium nudicaule Kaylea Eickhoff; Cara M. Witte 2005-6-3 1 Humboldt White Oak Opening, 19.3 miles south of Hwy. 299 on NF1. UTM 0441136, 4507151. 1240 Comment
  UC647476 Image available Lomatium tracyi Joseph P. Tracy 1933-7-25 12895 Humboldt Grouse Mountain. 1524 Comment
  SEINET13944678 Image available Lomatium utriculatum William A. Weber 1965-1 12292 Humboldt slope above Van Duzen River W of Dinsmore; 2400 ft alt 732 Comment
  UC314599  Lomatium utriculatum Joseph P. Tracy 1923-7-4 6525 Humboldt Northern Coast Ranges, Valley of S. Yager Creek 762 Comment
  HSC58307  Lonicera conjugialis Overton, Butler 1979-8-2 12589 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  POM284224  Lonicera hispidula var. vacillans Lyman Benson 1929-7-19 1864 Humboldt Dyerville to Mat[t]ole River. Comment
  UC35427  Lonicera hispidula var. vacillans Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  HSC31644  Lonicera involucrata var. ledebourii Glenn McGourty 1974-6-1 78 Humboldt Comment
  HSC59496  Lonicera involucrata var. ledebourii M. A. Ericksen 1979-4-20 211 Humboldt 0.3 mi. S of Cranell Rd. and Little River Dr. Comment
  OBI6309  Lonicera involucrata var. ledebourii Joseph P. Tracy 1943-3-21 17413 Humboldt North Coast ranges Comment
  RSA21019  Lonicera involucrata var. ledebourii C. B. Wolf 1937-9-12 9327 Humboldt Dry Lagoon State Park; base of coastal cliffs. 5 Comment
  RSA455683  Lonicera involucrata var. ledebourii Charlotte M. Hoak 1931-7-15 s.n. Humboldt Alton. Comment
  UC1223442  Lotus aboriginus Joseph P. Tracy 1937-8-15 15668 Humboldt 10 mi se Orick (near Sherman Lyon's Ranch) Comment
  UC162609  Lotus aboriginus Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5618 Humboldt Bald Mt. North Coast Ranges Comment
  UC201735  Lotus aboriginus Volney Rattan Jun 1883 Humboldt near Kneeland Prairie (e of Eureka, in R.N. forest) Comment
  SEINET3696853 Image available Lotus formosissimus Joseph P. Tracy 1935-6-8 13941 Humboldt Santa Clara Tract, just E of Eureka Comment
  UC1197308  Lotus humistratus Joseph P. Tracy 1931-5-3 9354 Humboldt near Blue Lake; Northern Coast Region, Mad River 15 Comment
  UC175636  Lotus micranthus Joseph P. Tracy 1913-6-13 4111 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CDA27276  Lotus micranthus T. C. Fuller 1958-6-17 1722 Humboldt Petrolia, Lower Mattole. 0 Comment
  POM19457  Lotus micranthus Joseph P. Tracy 1917-5-30 4795 Humboldt Ocean Beach at mouth of Little River Comment
  UC1129022  Lotus purshianus var. purshianus H. L. Person 1932-7-18 Humboldt Freshwater Eureka Quad. Comment
  SEINET181202 Image available Lotus scoparius var. scoparius Bassett Maguire, Ruth Maguire 1934-6-8 15126 Humboldt Vicinity Squaw Creek Comment
  UCD106706  Lotus uliginosus R. Tofsrud 1947-6-29 s.n. Humboldt Near Loleta. Comment
  UC495723  Lotus wrangelianus Joseph P. Tracy 1932-5-1 9886 Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  UC1197304  Lotus wrangelianus Joseph P. Tracy 1927-7-24 8303 Humboldt 3 mi s Point of Cape; Northern Coast Ranges, Cape Mendocino 3 Comment
  UC1196934  Ludwigia palustris Joseph P. Tracy 1923-6-27 6383 Humboldt shore of Lack Pond (opposite mouth of Willow Creek); Northern Coast Ranges, Trinity R. Valley, Lack Pond 182 Comment
  CAS-BOT-BC342555  Luina hypoleuca L. B. Kildale 1930-7-7 10262 Humboldt Chaparall [Chaparral] Mt at Bug Creek 914 Comment
  HSC6870  Lunaria annua H. S. Logsdon 1964-4-11 19 Humboldt 4 mi. NE of Orick at Boye's Prairie, along Prairie Creek Comment
  SEINET10490444  Lupinus adsurgens var. adsurgens Chestnut 1888-7-21 CHESTNUT s.n. Humboldt Type photo. W side south fork mountain. Comment
  HSC35035  Lupinus affinis Thomas W. Nelson, James Nelson 1975-5-24 1857 Humboldt McKeown Ranch, N of Dinsmore. Comment
  SEINET10488353  Lupinus affinis Charles Piper Smith 1948-5-10 Smith 48248 Humboldt Hwy 101. 0.2 Miles s of miranda Comment
  HSC96261  Lupinus albifrons var. collinus Kaylea Eickhoff, Cara M. Witte 2005-6-24 15 Humboldt 13 mi. S of Hwy. 299 on NF1 1375 Comment
  CAS-BOT-BC196399  Lupinus arboreus R. J. Mastrogiuseppe; J. D. Mastrogiuseppe 1974-9-3 178 Humboldt On sand dunes of Clam Beach Comment
  HSC27880  Lupinus arboreus Clifton Raymond Chesbrough 1973-6-19 78 Humboldt 1/4 mi. W of the Samoa entrance to Samoa Bridge Comment
  HSC40974  Lupinus arboreus Linda M. Barker 1976-5-13 1474 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  UC1129355  Lupinus arboreus H. L. Person 1931-7-30 Humboldt Fieldbrook; Eureka Quadrangle Comment
  SEINET10488455  Lupinus arboreus Michael Currier 1984-7-9 Currier 59 Humboldt Along ocean fromt at clam beach, 6 miles n of arcata; hwy 101. Penstemon sp., And gramineae Comment
  SEINET10488462  Lupinus arboreus Charles R. Gunn 1963-6-2 Gunn 2697 Humboldt Vacant lot n of trinidad school. 3 Plants. 5-6 Ft tall Comment
  HSC33762  Lupinus bicolor A. Montalvo 1975-5-24 277 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  RSA256586  Lupinus bicolor Lon Hall 1975-5-24 382 Humboldt Samoa Dunes; Dunes from off Samoa Blvd. across from the boat landing; coastal strand. Comment
  UC156990  Lupinus bicolor Joseph P. Tracy 1900-6-5 838 Humboldt Bucksport Northern Coast Region, region about Humboldt Bay (region about Humboldt Bay) 0 Comment
  HSC32156  Lupinus constancei D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5602 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC58603  Lupinus latifolius G. L. Clifton, Griswold 1979-7-25 10856 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC98892  Lupinus latifolius var. latifolius Cara Witte 2008-6-18 749 Humboldt Horse Mountain Botanical Area. Approximately 1 mile east of junction 6N36 and 6N36A. 1394 Comment
  UC1223265  Lupinus latifolius var. latifolius Joseph P. Tracy 1939-7-9 16339 Humboldt Snow Camp Comment
  HSC102527  Lupinus latifolius var. viridifolius M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1514 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  UC180177  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1914-7-4 4542 Humboldt High Prairie; on Bald Mountain Bald Mountain; Northern Coast Ranges, Bald Mountain 1066 Comment
  UCD109515  Lupinus rivularis P. B. Kennedy 1928-7-15 s.n. Humboldt Sea Cliffe, near Trinidad. Comment
  RSA104397  Lupinus tracyi Joseph P. Tracy 1932-7-15 10598 Humboldt Corral Prairie, Trinity Summit Comment
  CHSC943  Lupinus variicolor M. Underhill 1952-7-13 Humboldt 0 Comment
  HSC14130  Luzula comosa Paul Shields May 1955 Humboldt HSC campus Comment
  HSC75476  Luzula comosa J. O. Sawyer 1980-7-18 3623 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC1152144  Luzula comosa Joseph P. Tracy 1951-6-26 19546 Humboldt Snow Camp Meadow in boggy ground Snow Camp Meadow Comment
  HSC45017  Luzula multiflora subsp. multiflora R. Sutherland 1978-4-24 4 .24478 Humboldt Kinsey Ridge above Oat Creek 396 Comment
  HSC14138  Luzula parviflora H. E. Parks, S. T. Parks Jun 1952 22446 Humboldt Bishop Pine Lodge, Trinidad Comment
  RSA54022  Luzula parviflora E. K. Balls, Lee W. Lenz 1956-6-12 21662 Humboldt 4.4 miles SW from Willow Creek along U. S. Highway 299 to Arcata. 366 Comment
  SEINET3151058  Luzula subsessilis D. E. Anderson 1965-5-1 3565 Humboldt along hwy 96, 1.9 mi. N of Willow Creek Comment
  UC524369  Lycopodiella inundata Ira L. Wiggins 1932-7-19 5893 Humboldt low swamp at s end Big Lagoon Comment
  LA205867  Lycopodium clavatum Lawrence L. Kiefer; D. Branscomb 1964-5-20 1435 Humboldt near Trinidad, 1 mi E of Moonstone Beach on Kuntz property 152 Comment
  OBI1071  Lycopodium inundatum Lawrence L. Kiefer 1964-5-20 1436 Humboldt Big Lagoon State Park 23 Comment
  RSA47156  Lycopus uniflorus Doris K. Kildale 1926-7-16 2385 Humboldt Big Lagoon Comment
  CHSC2104  Lysichiton americanus M. Anthony 1960-5-14 Humboldt N. coastal. Comment
  HSC103699  Lysichiton americanus M. R. Mesler 2014-9-3 1638 Humboldt Arcata, Jolly Giant Creek Rd 49 Comment
  HSC36094  Lysichiton americanus Michael L. Chase 1973-5-14 10 Humboldt Along Van Duzen at junction with Yager Creek 37 Comment
  HSC39969  Lysichiton americanus Linda M. Barker 1976-3-22 1346 Humboldt 3 mi. W of Arcata, near rifle range at NE corner Comment
  HSC59797  Lythrum hyssopifolia Clark L. Miller 1979-5-19 1148 Humboldt Along Samoa Blvd. before railroad tracks, 4 mi. W of Arcata. Comment
  UC494086  Madia elegans H. E. Parks and J. P. Tracy 1930-5-25 882 Humboldt Laribee Valley Comment
  CAS-BOT-BC343024  Madia gracilis Doris K. Kildale 1927-7-1 3619 Humboldt Alton Hill 30 Comment
  HSC35783  Madia gracilis Thomas W. Nelson, B. Reinhardt 1975-7-30 2090 Humboldt Head of Pilot Creek, Last Chance Ridge Comment
  HSC58359  Madia gracilis Overton, Butler 1979-8-2 12706 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC581815  Madia gracilis Joseph P. Tracy 1934-7-18 13432 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  CAS-BOT-BC343023  Madia gracilis J. Clausen 1932-9-19 692 Humboldt Weott Comment
  JEPS40333  Madia gracilis Lincoln Constance 1934-5-24 625 Humboldt s slope Lower Look Prairie; South Fork Eel River, Bull Creek Region 121 Comment
  RSA25705  Mahonia nervosa C. B. Wolf 1941-7-27 11085 Humboldt North Coast Range Mts., Blue Lake to Willow Creek Rd. (U.S. #299) 2 mi. east of n. fk. of Mad River. 152 Comment
  HSC15589  Maianthemum dilatatum Wm. F. Bowman 1968-10-26 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  CAS-BOT-BC508506  Maianthemum dilatatum D. E. Breedlove 1962-6-8 3070 Humboldt Along U.S. Highway 101, 8 miles north of Orick 60 Comment
  UC1028306  Maianthemum dilatatum George B. Rossbach 1955-6-8 223 Humboldt n. portion Prairie Creek Redwoods State Park, Rte. 101 Prairie Creek Redwoods State Park, Rte. 101 Comment
  HSC98721  Maianthemum racemosum subsp. amplexicaule Cara Witte 2008-7-11 874 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  HSC99383  Maianthemum racemosum subsp. amplexicaule K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 32 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SD56734  Maianthemum racemosum subsp. amplexicaule Darley F. Howe 1963-5-26 Humboldt 3.7 miles east of Orick on Bald Hill Road. 487 Comment
  HSC98154  Maianthemum stellatum Jack Rockwell 1962-4-29 38 Humboldt E bank of Redwood Creek, near Hwy. 299 549 Comment
  HSC99389  Maianthemum stellatum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 38 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SEINET3992479  Maianthemum stellatum Unknown 1932-7-12 10455 Humboldt Near Corral Prairie; Trinity Summit 1585 Comment
  UC565510  Malacothrix floccifera H. L. Mason 1928-7-14 4906 Humboldt near Garberville; East Fork of Eel River Comment
  RSA319241  Malus fusca Patricia Wilder 1968-8-21 4387 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  UC1198759  Malus fusca J. P. Tracy 1901-5-12 1090 Humboldt immediate vicinity Eureka 0 Comment
  SEINET4929765  Marah fabacea Unknown 2002-8-22 90 Humboldt Along Fischer Road 0.25mi N of the Mad River. Comment
  HSC37571  Marah oregana J. D. Ackerman 1975-6-10 451 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  UC168954  Marah oregana Joseph P. Tracy 1909-5-30 2980 Humboldt Eureka Northern Coast Region 0 Comment
  UC16107  Medicago lupulina Joseph Burtt Davy and Walter C. Blasdale 1899-6-15 5532 Humboldt near Scotia Comment
  UC170039  Medicago lupulina Joseph P. Tracy 1912-7-4 3728 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC14973  Medicago polymorpha W. F. Nickel 1965-4-28 Humboldt On Humboldt State Campus behind biological science building, near baseball field. Comment
  CAS-BOT-BC271172  Melica aristata Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  SEINET202035  Melica aristata Joseph P. Tracy 1948-8-10 18157 Humboldt Trinity summit. On ridge 2 mi. east of Grove's Prairie. Comment
  RSA10133  Melica bulbosa Joseph P. Tracy 1932-7-12 10445 Humboldt Open ground at Corral Prairie, Trinity Summit, Klamath Mountains. 1524 Comment
  UC1103762  Melica bulbosa Joseph P. Tracy 1927-5-22 8073 Humboldt Kneeland Prairie; Northern Coast Range 762 Comment
  UC1103758  Melica fugax Joseph P. Tracy 1936-7-5 15041 Humboldt Grouse Mountain 1524 Comment
  UC1145131  Melica fugax Joseph P. Tracy 1936-7-5 15041 1/2 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC281321  Melica harfordii David D. Keck 1948-7-2 6005 Humboldt E side Rocky Ridge, E of Berry's summit, 4.1 miles W of Willow Creek, near boundary of Six Rivers National Forest 457 Comment
  UC1103754  Melica harfordii Joseph P. Tracy 1941-7-5 16968 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC1132278  Melica harfordii H. L. Person 1932-5-11 Humboldt near Arcata 0 Comment
  UC1145139  Melica harfordii Joseph P. Tracy 1941-6-15 16913 Humboldt near King's Peak (Wilder Ridge); Wilder Ridge 609 Comment
  UC1103161  Melica subulata H. E. Parks and Joseph P. Tracy 1934-6-27 11075 Humboldt Grouse Mt. 1432 Comment
  UC34140  Melica subulata Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5405 Humboldt Hubbard's Station; North Coast Ranges Comment
  UC1222472  Melilotus albus Joseph P. Tracy 1949-7-7 18336 Humboldt Blue Slide Van Duzen River 91 Comment
  UC673063  Melilotus albus Joseph P. Tracy 1933-8-13 1 Humboldt along river near Blue Lake; Mad River 15 Comment
  RSA167274  Melilotus albus Joseph P. Tracy 1949-7-7 18336 Humboldt Blue Slide, on Van Duzen River. Comment
  UC1197422  Melilotus indicus Joseph P. Tracy 1933-5-20 12232 Humboldt Cape Mendocino; near ocean 9 Comment
  JEPS63288  Melissa officinalis W. L. Jepson 1932-8-2 16472 Humboldt Dyerville 76 Comment
  UC1191796  Mentha canadensis Malcolm A. Nobs, S. Galen Smith 1949-8-3 1186 Humboldt at southern outskirts of Eureka Comment
  JEPS26724  Mentzelia laevicaulis var. laevicaulis W. L. Jepson 1936-8-17 17939 Humboldt near Arcata; Mad River Comment
  HSC37417  Menziesia ferruginea Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 516 Humboldt Along Lost Man Creek. 38 Comment
  UC1197585  Menziesia ferruginea E. Ethel Tracy 1911-5-26 3189 Humboldt Patrick's Point; Northern Coast Ranges, Patrick's Point 60 Comment
  SEINET2031086 Image available Menziesia ferruginea Joseph P. Tracy 1908-1 2676 Humboldt Region about Humboldt Bay; in redwood forest on Freshwater Creek 0 Comment
  HSC36233  Menziesia ferruginea subsp. ferruginea John Rehling 1975-5-8 63 Humboldt E of Humboldt State University Campus, Arcata Comment
  HSC77389  Menziesia ferruginea subsp. ferruginea L. P. Janeway 1983-5-3 258 Humboldt Community Forest Main Access Rd., E of HSU 168 Comment
  HSC73173  Micropus californicus var. californicus M. A. Baker 1980-5-18 1337 Humboldt Near Black Mtn. 792 Comment
  UC88381  Micropus californicus var. californicus W. W. Price 1890-6-30 Humboldt Mad River Comment
  UC582439  Microseris douglasii subsp. douglasii Joseph P. Tracy 1929-5-5 8560 Humboldt Miranda, along South Fork of Eel River Northern Coast Ranges, South Fork of Eel River 121 Comment
  HSC74187  Microseris nutans Gail Newton 1980-6-28 722 Humboldt Near Mad River Butte. 1536 Comment
  HSC98617  Microsteris gracilis Cara Witte 2007-5-23 111 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1635 Comment
  BLMAR194  Mimulus aurantiacus Donald Hazlett 1994-6-7 194 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC582443  Mimulus aurantiacus var. aurantiacus Joseph P. Tracy 1934-7-12 13379 Humboldt Big Lagoon 152 Comment
  HSC56069  Mimulus breweri G. L. Clifton, Griswold 1979-7-31 11735 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  UC1196800  Mimulus breweri Joseph P. Tracy 1919-9-22 5264 Humboldt Trinity Summit Northern Coast Ranges 1889 Comment
  UC198662  Mimulus douglasii Joseph P. Tracy 1915-5-20 4639 Humboldt Eureka Northern Coast Ranges Comment
  UC1196836  Mimulus grandis J. P. Tracy 1901-6-16 1139 Humboldt immediate vicinity Eureka (near Bucksport) 0 Comment
  UC582700  Mimulus guttatus Joseph P. Tracy 1932-7-16 10612 Humboldt Corral Prairie Trinity Summit 1584 Comment
  SEINET4677981  Mimulus guttatus Unknown 1971-7-5 105 Humboldt Approx. 8 miles east of Petrolia.; 0 Comment
  HSC60082  Mimulus kelloggii M. A. Baker 1978-5-6 500 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  RSA535811  Mimulus kelloggii David M. Thompson 1986-3-26 856 Humboldt Somes Bar. Along Hwy 96, 100 ft S of Siskiyou Co. line; at confluence of Klamath and Salmon rivers. 61 Comment
  HSC55736  Mimulus moschatus G. L. Clifton, Griswold 1979-7-26 10233 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  JEPS10598  Mimulus pilosus W. L. Jepson 1936-8-17 17937 Humboldt near Arcata; Mad River Comment
  JEPS4667  Mimulus pulsiferae Harold E. Parks and Joseph P. Tracy 1934-6-27 11087 Humboldt Grouse Mt. 1432 Comment
  HSC20828  Mimulus pulsiferae H. E. Parks, J. P. Tracy 1937-6-27 11087 Humboldt Grouse Mtn. 1433 Comment
  HSC32233  Minuartia douglasii J. O. Sawyer 1970-6-24 2247 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  CAS-BOT-BC432905  Mitella Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC56219  Mitella caulescens G. L. Clifton, Griswold 1979-8-2 12242 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC667082  Mitella ovalis Joseph P. Tracy 1933-5-14 12183 Humboldt along Trinity Highway Willow Creek Canyon 365 Comment
  RSA46838  Monardella odoratissima subsp. pallida Doris K. Kildale 1927-7-22 3814 Humboldt Lasseck s Peaks Comment
  UCR15548  Monardella villosa subsp. subserrata George K. Helmkamp 1978-7-15 s.n. Humboldt Prairie Creek Redwoods State Park 305 Comment
  RSA0022803  Monardella villosa subsp. subserrata L. R. Abrams 1922-6-25 8221 Humboldt Camp Cemi [?], north Garberville. Comment
  JEPS62397  Monardella villosa subsp. villosa W. L. Jepson 1927-7-3 12370 Humboldt Garberville South Fork Eel River 365 Comment
  RSA29091  Montia diffusa Lincoln Constance, A. A. Beetle 1940-5-17 2615 Humboldt In Shade of Cornus and Sambucus, cutover Pseudotsuga forest. Above Van Duzen River, 1 mile below Dinsmore s 762 Comment
  POM168985  Montia howellii Joseph P. Tracy 1916-5-7 4686 Humboldt Eureka Comment
  CHSC84555  Montia parvifolia John Dittes; Josephine Guardino 2003-6-7 2003 -64 Humboldt Outer North Coast Range; ca. 2.9 air-mile northwest of Legget, ca. 5.2 air-mile southeast of Piercy, on eastern bank of South Fork Eel River. 182 Comment
  HSC55061  Montia parvifolia G. L. Clifton, Terry Griswold 1979-7-31 11613 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UC524121  Montia parvifolia I. L. Wiggins 1932-7-7 5879 Humboldt near Samoa Comment
  CAS-BOT-BC260573  Muhlenbergia filiformis Joseph P. Tracy 1932-7-14 10544 Humboldt Klamath Mountains. At Corral Prairie 1524 Comment
  CAS-BOT-BC260574  Muhlenbergia filiformis Joseph P. Tracy 1932-7-14 10544 Humboldt Klamath Mountains. At Corral Prairie 1524 Comment
  UCD86804  Muhlenbergia mexicana Joseph P. Tracy 1918-9-29 5115 Humboldt South Fork of Eel River, 4 miles above the mouth. 60 Comment
  HSC3743  Myosotis discolor J. R. Good 1964-5-15 42 Humboldt Mad River Park. NE of parking lot, 85 yds. towards Mad River Comment
  POM280267  Myrica californica Lyman Benson 1930-7-18 2191 Humboldt Shively, seaward north coast Mt. range, Eel River. 46 Comment
  HSC77878  Myriophyllum hippuroides Scott White 1973-10-29 Humboldt Clam Beach pond Comment
  HSC77870  Myriophyllum sibiricum Richard K. Willis 1973-9-19 731019 .1 Humboldt Fish Lake Comment
  HSC100457  Nasturtium curvisiliqua Carl C. Marshall May 1885 45 Humboldt Peninsula near marsh. Comment
  CAS-BOT-BC60348  Nasturtium officinale M. S. Jussel 1931-5-2 s.n. Humboldt 25 miles north of Garberville. Comment
  HSC60107  Nasturtium officinale M. A. Baker 1977-6-6 375 Humboldt Hoopa Comment
  HSC73502  Navarretia capillaris Gail Newton 1980-7-11 1325 Humboldt Near Red Mtn. 1341 Comment
  HSC97972  Navarretia divaricata subsp. divaricata Cara Witte 2007-6-21 322 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1419 Comment
  HSC76562  Navarretia divaricata var. divaricata Denis Kearns 1981-7-22 324 Humboldt Near Whiteys Peak. 1487 Comment
  UC1198607  Navarretia intertexta Joseph P. Tracy 1934-7-9 13345 Humboldt Dobbyn Creek 152 Comment
  JEPS69509  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1930-7-10 8864 Humboldt Brannan Mountain Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC1198532  Navarretia squarrosa Joseph P. Tracy 1929-10-20 8683 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  CDA40110  Navarretia squarrosa E. C. Whitney 1976-7-22 s.n. Humboldt Vic Guynup property, Field Brook. 0 Comment
  UCD48693  Navarretia squarrosa John M. Tucker 1948-9-4 1862 Humboldt Beck's Ranch, Hydesville, Humboldt County, California. Comment
  UC198643  Navarretia tagetina Joseph P. Tracy 1916-6-19 4709 Humboldt Forks of Dobbyn Creek Northern Coast Ranges 182 Comment
  JEPS3218  Nemophila heterophylla Joseph P. Tracy 1937-5-17 15292 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  HSC13587  Nemophila menziesii Francis Winter 1960-5-7 Humboldt E end Arbor Camp Ridge 915 Comment
  UC1239752  Nemophila menziesii var. atomaria Joseph P. Tracy 1923-4-1 6174 Humboldt 3 mi e Blue Lake (Mankin Place); e of Blue Lake, Mankin Place 274 Comment
  UC562582  Nemophila menziesii var. atomaria Joseph P. Tracy 1923-4-15 6191 Humboldt at Berry's North Coast Ranges, , Berry's (Redwood Creek) 274 Comment
  UC67090  Nemophila parviflora Harley P. Chandler 1901-6-1 1537 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  CAS-BOT-BC219409  Nemophila parviflora Kenneth Clark 1980-3-23 533 Humboldt Shelter Cove. South fork Dead Man's [Deadman] Gulch 60 Comment
  CAS-BOT-BC400083  Nuphar polysepala Carl B. Wolf 1937-9-9 9309 Humboldt 1 mi. So. of Capetown on road to Cape Mendocino 91 Comment
  JEPS11312  Nuttallanthus texanus Joseph P. Tracy 1918-5-5 4921 Humboldt Ocean Beach at Humboldt Bay Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  CAS-BOT-BC142253  Oemleria cerasiformis Alice Eastwood 1943-6-11 19876 Humboldt State Azalea Grove Comment
  UC1128079  Oemleria cerasiformis P. L. Johannsen 1933-5-17 76 Humboldt Limestairs; Trinity National Forest, China Flat Quad. 182 Comment
  UC154222  Oemleria cerasiformis Joseph P. Tracy 1909-6-13 2993 Humboldt near Blue Lake; Northern Coast Ranges, Mad River Valley 30 Comment
  HSC18398  Oemleria cerasiformis Anonymous 1956-5-1 Humboldt Mattole area Comment
  HSC21577  Oenanthe sarmentosa Paul Shields 1965-6-16 Humboldt HSC campus Comment
  HSC38335  Oenanthe sarmentosa Peter Sorensen 1976-8-11 Humboldt King Salmon Comment
  RSA246753  Oenanthe sarmentosa R. F. Thorne, P. Everett 1965-8-7 35212 Humboldt Samoa Peninsula: near sea level Comment
  UC1400342  Oenanthe sarmentosa Robert F. Thorne and P. Everett 1965-8-9 35318 Humboldt Clam Beach County Park 3 Comment
  RSA21623  Oenothera wolfii Carl B. Wolf 1937-9-9 9307 Humboldt 2 miles S of Cape Mendocino. 6 Comment
  UCR111734  Oenothera wolfii D. K. Imper 1993-5-13 s.n. Humboldt North Coast, Lost Coast Road c. 4 miles south of Cape Mendocino at Davis Creek Bridge, from bridge along road c. 300 ft. to north 6 Comment
  HSC102088  Oreostemma alpigenum var. andersonii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 991 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC1199306  Oreostemma alpigenum var. andersonii Joseph P. Tracy 1932-7-13 10516 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC102065  Orthocarpus imbricatus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 967 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC56000  Orthocarpus imbricatus Walter Overton, Marvin Butler 1979-7-31 11445 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC1245385  Orthocarpus imbricatus Joseph T. Gregory 1935-7-23 701 Humboldt open places at Corral Prairie (Trinity Summit); , open places at Corral Prairie 1584 Comment
  HSC31140  Osmorhiza berteroi J. O. Sawyer, R. J. Cole 1970-6-24 2271 Humboldt S of Mill Creek Gap, FS 10N02 1433 Comment
  JEPS14168  Osmorhiza berteroi Lincoln Constance 1934-5-26 649 Humboldt near Founder's Tree; South Fork Eel River, Bull Creek Region, North Dyerville, Fl 48 Comment
  UCR45439  Osmorhiza chilensis Kenneth Clark 1980-4-18 576 Humboldt North Coast, Shelter Cove, on access trail to Dead Man's Gulch 52 Comment
  UC1197132  Osmorhiza occidentalis Joseph P. Tracy 1932-7-11 10420 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UCR275113  Oxalis articulata Charity A. Hartshorn 2016-5-14 38 Humboldt Arcata Community Forest 244 Comment
  HSC79521  Oxalis corniculata Kenneth Clark 1980-3-1 516 Humboldt Middle alluvial terrace, Dead Man's Gulch, on terraces and along access trail to Dead Man's Gulch. 37 Comment
  HSC46169  Oxalis oregana J. P. Smith 1973-5-26 6852 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  POM353447  Oxalis oregana Carolyn Sanford 1977-4-23 333 Humboldt 2.5 miles south of Shelter Cove Road, south fork of Bear Creek at Wailaki Campground 561 Comment
  HSC69850  Oxalis oregana R. Kalal 1979-5-5 42 Humboldt Fickle Hill Rd., 1.0 mi. E of 11th St. 183 Comment
  POM278933  Oxalis oregana Lyman Benson 1927-7-12 225 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; River: South Fork Eel. 61 Comment
  POM353445  Oxalis oregana J. P. Smith 1973-5-26 6852 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC502948  Oxalis suksdorfii Joseph P. Tracy 1930-6-22 8796 Humboldt Berry's Northern Coast Ranges (Redwood Creek) 457 Comment
  UC166076 Image available Packera bolanderi var. bolanderi Joseph P. Tracy 1911-6-4 3231 Humboldt 5 mi from The Coast (along Little River); Northern Coast Region, Little River 121 Comment
  HSC10489  Panicum acuminatum var. fasciculatum J. P. Tracy 1931-5-17 9427 Humboldt Trinity River Valley, at Willow Creek. Comment
  HSC12343  Panicum capillare Steve Dorei 1970-10-31 126 Humboldt Scotia bluff area, N side of railroad tracks. Comment
  RSA10048  Panicum miliaceum Joseph P. Tracy 1931-9-7 9639 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC526836  Panicum miliaceum subsp. miliaceum Joseph P. Tracy 1931-9-7 9639 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC30825  Parapholis strigosa J. P. Smith, Dennis Anderson 1971-6-14 - 1051 Humboldt At foot of G St., Arcata. Comment
  HSC12791  Parentucellia viscosa Jana Kattenhorn 1970-10-14 47 Humboldt Big Lagoon Comment
  UC885089  Parentucellia viscosa John Thomas Howell 1937-7-31 13719 Humboldt 3 mi w Korbel Comment
  UC249858  Paspalum distichum Joseph P. Tracy with H. E. Parks 1924-8-3 6779 Humboldt Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  SEINET3823290 Image available Pastinaca sativa Joseph P. Tracy 1937-10-31 15694 Humboldt Rio Dell 30 Comment
  HSC20924  Pedicularis densiflora D. E. Anderson 1962-5-1 2202 Humboldt 1 mi. W of Hoopa Comment
  HSC1074  Pellaea mucronata var. mucronata J. P. Tracy 1933-6-13 12561 Humboldt Hoopa Mtn., near summit on rd. from Hoopa westward to Bair's 1067 Comment
  HSC48023  Penstemon anguineus Brad Klipfel 1973-7-31 259 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  SD42331  Penstemon azureus Carl B. Wolf 1937-8-13 9220 Humboldt North Coast Range, 8 mi. E. of Hoopa Valley on new road towards Trinity Summit 1219 Comment
  UC169083  Penstemon deustus Harley P. Chandler June, 1901 1459 Humboldt Bluff Creek North Coast Ranges, , Bluff Creek (Klamath River) 426 Comment
  RSA43894  Penstemon deustus subsp. deustus H. M. Pollard 1947-8-30 s.n. Humboldt North road along Klamath River near Van Fleet Ranch, Orleans region. Comment
  JEPS11239  Penstemon deustus var. deustus Joseph P. Tracy 1935-7-28 14327 Humboldt Head of Devil's Hole Trinity Summit, Head of Devil's Hole 1828 Comment
  JEPS11368  Penstemon heterophyllus var. purdyi Lincoln Constance 1934-5-26 676 Humboldt s end of Dyerville Bridge Bull Creek Region, South Fork Eel River, Dyerville Bridge (South Fork Eel River, Bull Creek Region) 45 Comment
  HSC39932  Penstemon laetus subsp. sagittatus J. O. Sawyer 1970-6-25 2293 Humboldt 1646 Comment
  UC41715  Penstemon laetus var. sagittatus Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  HSC73689  Penstemon newberryi M. A. Baker 1980-7-24 3203 Humboldt Near Orleans Mtn. 1625 Comment
  HSC55750  Penstemon newberryi subsp. berryi G. L. Clifton, Terry Griswold 1979-7-26 10282 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UC774991  Penstemon parvulus Carl B. Wolf 1937-8-13 9220 Humboldt on new road towards Trinity Summit 8 mi e Hoopa Valley; North Coast Range 1219 Comment
  UC169849  Penstemon rattanii var. kleei V. Rattan 1870-1 Humboldt Comment
Read comments
Sep 7 2007
  HSC37673  Pentagramma triangularis R. Sutherland 1976-8-6 28 .6876 Humboldt Whitmore Grove 99 Comment
  RSA0066316  Pentagramma triangularis Lyman Benson 1928-7-12 472 Humboldt Weott Ranger Station. Seaward N Coast Range, S Fork Eel River watershed. 61 Comment
  CAS-BOT-BC71619  Pentagramma triangularis subsp. triangularis Ira L. Wiggins 1957-6-21 14139 Humboldt E side of road, 1 mi. S of Garberville Comment
  UC1197322  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1913-9-7 4390 Humboldt Eureka Northern Coast Region 0 Comment
  UC154075  Perideridia gairdneri subsp. borealis J. P. Tracy Aug 26 1900-May 12 1901 Humboldt near Eureka; Immediate vicinity of Eureka 0 Comment
  UC1103410  Perideridia kelloggii Joseph P. Tracy 1924-5-4 6665 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  HSC99093  Perideridia oregana Cara Witte 2007-7-8 447 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  HSC56110  Perideridia parishii subsp. latifolia G. L. Clifton 1979-7-31 11864 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC25526  Persicaria maculosa Norman Dennis 1965-6-8 109 Humboldt Samoa Peninsula along W side of Humboldt Bay Comment
  CDA8459  Petasites frigidus var. palmatus E. C. Whitney 1964-4-1 Humboldt Kneeland. 0 Comment
  HSC26590  Petrorhagia dubia D. E. Anderson 1973-4-20 Humboldt Flood plain of Eel River 5 mi. E of Founders Tree area, Avenue of the Giants Comment
  HSC13680  Phacelia bolanderi W. Lanphere 1937-5-25 Humboldt Dyerville Comment
  HSC65662  Phacelia bolanderi J. P. Smith, Steve Selva 1970-6-14 3821 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  JEPS1438  Phacelia bolanderi W. L. Jepson 1932-8-9 16536 Humboldt Bull Creek 106 Comment
  JEPS1440  Phacelia bolanderi Milo S. Baker 1923-8-5 197 B Humboldt hwy between Orick and Requa Comment
  SEINET12335255  Phacelia bolanderi F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -304 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  BLMAR698  Phacelia ciliata Jennifer Wheeler 2011-6-15 698 Humboldt Lacks Creek, Pine Ridge Road 1097 Comment
  HSC103089  Phacelia corymbosa Sydney Carothers 2014-6-22 4 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  UC562558  Phacelia corymbosa Joseph P. Tracy 1926-6-20 7624 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  HSC98658  Phacelia heterophylla subsp. virgata Cara Witte 2007-7-3 416 Humboldt Along National Forest 1. 1/4 mile north of Road V. 1268 Comment
  RSA170294  Phacelia heterophylla subsp. virgata Lincoln Constance 1934-5-29 731 Humboldt South Fork Eel River, Upper Look Prairie. 366 Comment
  JEPS1200  Phacelia malvifolia Joseph P. Tracy 1934-6-10 13212 Humboldt DRY LAGOON (Along coast in front South End of Stone Lagoon.) Comment
  RSA428107  Phacelia mutabilis Brad W. Klipfel 1973-7-1 143 Humboldt Along ridge trail south east of North Trinity Mountain 1829 Comment
  HSC57416  Phacelia procera G. L. Clifton, Griswold 1979-7-26 10178 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  UC186003  Phalaris minor J. P. Tracy 1912-10-20 3994 Humboldt near Loleta Pond (Eel River Valley); , near Loleta Pond 15 Comment
  CAS-BOT-BC76569  Philadelphus lewisii L. R. Abrams 1916-7-11 6006 Humboldt Between Blocksberg and Bridgeville Comment
  JEPS43497  Philadelphus lewisii Lincoln Constance 1934-5-26 655 Humboldt near Founder's Tree; South Fork Eel River, Bull Creek Region, North Dyerville Fla 48 Comment
  LA97948  Philadelphus lewisii Jane Turner; Francis M. Ball 1962-7-10 SK&F- 1145 Humboldt East Fork Willow Creek Forest Camp, Six Rivers National Forest, highway 299 ca. 5 mi. W of Willow Creek 457 Comment
  SEINET202724  Philadelphus lewisii subsp. californicus Joseph P. Tracy 1950-6-18 18853 Humboldt Along Redwood Creek, two miles west of Briceland. Comment
  UC181260  Phleum alpinum Joseph P. Tracy 1913-7-20 4376 1/2 Humboldt ridge between Redwood Creek and Three Creeks (on Berry's ranch); Northern Coast Ranges, btw Redwood Creek and Three Creeks 914 Comment
  HSC8515  Phleum pratense True Hoyle 1967-7-24 28967 Humboldt Oscar Stapp Ranch near Showers Creek and Showers Pass 1006 Comment
  UC1178964  Phlox adsurgens Joseph P. Tracy 1932-7-13 10488 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  HSC49981  Phlox adsurgens M. A. Baker 1979-6-7 779 Humboldt N bank of road to Snow Mtn. 610 Comment
  RSA141271  Phlox adsurgens Joseph P. Tracy 1932-7-13 10488 Humboldt Trinity Summit; fir woods near Corral Prairie. 1585 Comment
  HSC45267  Phlox diffusa M. Alcasas 1978-6-3 112 Humboldt Horse Mtn. summit 1513 Comment
  UC673118  Phlox gracilis Joseph P. Tracy 1940-5-17 16550 Humboldt Larrabee Valley 731 Comment
  UC908462  Phlox gracilis Joseph P. Tracy 1930-6-21 8791 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  CAS-BOT-BC452021  Phyllospadix torreyi W. R. Dudley 1899-1-1 s.n. Humboldt Trinidad Head Comment
  JEPS44661  Physocarpus capitatus W. L. Jepson 1936-8-13 17894 Humboldt S Fork Eel River Philipsville (Franklin K. Lane grove) Comment
  JEPS46729  Picea sitchensis J. P. Tracy Feb. 1901 Humboldt Humboldt Bay Comment
  SBBG25612  Picea sitchensis E. R. Blakley 1966-8-17 6802 Humboldt Patrick's Pt, 5 mi N of Trinidad 60 Comment
  UC137  Picea sitchensis J. P. Tracy 1901-4-17 Humboldt Samoa; Humboldt Bay Comment
  UCSB24019  Picea sitchensis Keefe, Joseph 1967-7-8 Humboldt South edge of Big Lagoon, 20 miles north of Eureka 1 Comment
  CAS-BOT-BC78290  Pinus attenuata Carl B. Wolf 1937-8-13 9240 Humboldt North Coast Range, 8 mi. E. of Hoopa Valley on new road towards Trinity Summit 1219 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-BC78379  Pinus contorta Doris K. Kildale 1926-11-28 2865 Humboldt Patrick's Point 60 Comment
  HSC1475  Pinus contorta Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  NY49716  Pinus contorta var. contorta R. E. Anderson 1987-3-28 172 Humboldt Patrick's Point State Park, on west Rim Trail 30 Comment
  NY49720  Pinus contorta var. contorta L. Abrams 1916-7-18 6074 Humboldt Arcata to Trinidad Comment
  RSA246942  Pinus contorta var. contorta Robert F. Thorne, P. Everett 1965-8-7 35217 b Humboldt Samoa Peninsula. 3 Comment
  UC902029  Pinus jeffreyi Joseph P. Tracy 1949-7-19 18387 Humboldt Grouse Mountain 1524 Comment
  HSC72797  Pinus monticola Gail Newton 1980-6-17 206 Humboldt Near Onion Mtn. 1341 Comment
  CAS-BOT-BC136468  Piperia candida Harley P. Chandler 1901-6-1 1385 Humboldt Field redacted by CAS, contact the data manager for more information 304 Comment
  UC1196410  Piperia elegans Joseph P. Tracy 1913-9-21 4411 Humboldt Humboldt Bay Northern Coast Region Comment
  HSC48720  Pityopus californicus T. Mainwaring 1978-6-2 Humboldt Horse Mountain Area. Bulk Collection 175 Comment
  CAS-BOT-BC227992  Plagiobothrys Doris Kildale Gillespie 1931-6-7 10647 Humboldt South Fork Mountain, Blake Lookout 1726 Comment
  UC667001  Plagiobothrys bracteatus Joseph P. Tracy 1939-4-29 16232 Humboldt Hoopa Valley 106 Comment
  UC526817  Plagiobothrys bracteatus Joseph P. Tracy 1933-7-20 12812 Humboldt near Blue Lake (in dry bed of slough); Mad River 15 Comment
  JEPS61027  Plagiobothrys hispidulus Joseph P. Tracy 1932-7-10 10386 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC552843  Plagiobothrys hispidulus Joseph P. Tracy 1935-7-25 14226 Humboldt wet meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC1239619  Plagiobothrys nothofulvus Joseph P. Tracy 1933-5-20 12243 Humboldt Mattole Valley near Petrolia; Northern Coast Ranges 30 Comment
  UC1222209  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-28 17270 Humboldt roadside near Murphy Meadows (Bald Mountain (e of Korbel)); Bald Mountain Comment
  SEINET12275868  Plagiobothrys scouleri J. P. Tracy 1949-1 18322 Humboldt Cameron Hill on Kneeland Road Comment
  UC1222201  Plagiobothrys scouleri Joseph P. Tracy 1950-6-29 18936 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC1222206  Plagiobothrys scouleri Joseph P. Tracy 1946-5-30 17538 Humboldt 2 mi so Bridgeville 457 Comment
  SEINET12330007  Plantago hirtella var. galeottiana F. H. Utech 1986-1 86 -409 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  HSC16834  Plantago lanceolata Francis Winter 1960-4-24 Humboldt 1 mi. N of Redwood Creek Ranch 396 Comment
  RSA245522  Plantago lanceolata Larry E. DeBuhr 1973-4-23 988 Humboldt Richardson Grove Redwood State Park. Comment
  UCD124617  Plantago lanceolata Gary Wallace 1966-9-12 706 Humboldt East of Arcata near Willow Creek along Hwy 299. Comment
  OBI11636  Plantago major Joseph P. Tracy 1942-7-25 17300 Humboldt Fickle Hill, 6 mi SE of Arcata Comment
  RSA246721  Plantago major Robert F. Thorne, Percy C. Everett 1965-8-8 35233 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  POM312368  Plantago maritima Malcolm A. Nobs, S. Galen Smith 1949-8-3 1205 Humboldt 2 miles north of Eureka, bordering Humboldt Bay. Comment
  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
  HSC34985  Plantago subnuda Thomas W. Nelson 1974-9-12 1709 Humboldt 3 mi. S of Arcata Comment
  HSC27463  Platanthera dilatata var. leucostachys J. D. Ackerman, A. Montalvo 1973-6-30 90 Humboldt Big Lagoon State Park, 8 mi. N of Trinidad 0 Comment
  HSC28079  Platanthera dilatata var. leucostachys J. D. Ackerman, A. Montalvo 1973-7-4 93 Humboldt E boundary of Hoopa Indian Reservation, Big Hill Rd. Comment
  UCSC000161  Platanthera leucostachys W. Jan Rowe 1967-1 Humboldt Comment
  UC275576  Platanthera sparsiflora Joseph P. Tracy 1923-6-24 6369 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC28091  Platanthera sparsiflora J. D. Ackerman, A. Montalvo 1973-7-4 92 Humboldt E boundary of Hoopa Indian Reservation, Big Hill Rd. Comment
  HSC103985  Platystemon californicus E. R. Fyer 2015-3-19 15 Humboldt Samoa; along side of New Navy Base Rd 8 Comment
  SEINET3124150 Image available Platystemon californicus Joseph P. Tracy 1904-5-1 2047 Humboldt Region about Humboldt Bay, sandy field at Bucksport 0 Comment
  HSC33743  Plectritis congesta A. Montalvo 1975-5-24 279 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  UC1239596  Plectritis congesta Joseph P. Tracy 1935-6-23 13974 Humboldt French Camp Ridge 1066 Comment
  UC1239580  Plectritis congesta Joseph P. Tracy 1904-4-24 2024 Humboldt Ocean Beach at Humboldt Bay Ocean Beach Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  HSC48728  Pleuricospora fimbriolata J. Pageau, T. Jimerson, W. Wisler, A. Regalis 1979-6-13 524 Humboldt Off FS 10N05. SE slope of Hopkins Butte. Bulk Collection 186 1037 Comment
  SJSU2519  Pleuricospora fimbriolata H. L. Buckalew 1962-6-28 Humboldt Prairie Cr, Redwoods State Park Comment
  CAS-BOT-BC458165  Pleuricospora fimbriolata Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1219 Comment
  HSC63844  Pleuricospora fimbriolata M. A. Baker 1979-6-29 953 Humboldt 900 Comment
  UC552670  Pleuropogon californicus Joseph P. Tracy 1935-5-25 13846 Humboldt Fort Seward 106 Comment
  UC1103800  Pleuropogon refractus Joseph P. Tracy 1905-4-2 2158 Humboldt 1 mi below Blue Lake (on Mad River); Northern Coast Ranges, Mad River 60 Comment
  HSC10625  Poa annua P. N. Slattery 1963-4-4 28 Humboldt Clam Beach. Comment
  HSC90689  Poa annua Gail Newton 1982-6-10 3593 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC10672  Poa compressa J. P. Tracy 1925-7-5 7182 Humboldt High Prairie on Bald Mtn. 1067 Comment
  UCD90863  Poa compressa Burle J. Jones 1939-6-5 s.n. Humboldt Lolita. Comment
  HSC10705  Poa douglasii S. J. Moore 1965-5-9 48 Humboldt Dry Lagoon State Park, near entrance. Comment
  UC525621  Poa douglasii Joseph P. Tracy 1933-5-20 12224 Humboldt s of point of the Cape Cape Mendocino 3 Comment
  UC180506  Poa howellii Joseph P. Tracy 1913-6-20 4243 Humboldt lower foothills of Buck Mt (nw slope); Northern Coast Ranges 762 Comment
  UC1026388  Poa kelloggii John Thomas Howell 1954-4-24 29151 Humboldt Bull Creek Flat Comment
  UCD91539  Poa macrantha Linda M. Barker 1976-6-22 1625 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC10758  Poa pratensis E. W. Styskel 1964-4-26 72 Humboldt End of Davis St. at edge of Eel River in Rio Dell. Comment
  UC1103183  Poa pratensis subsp. pratensis Joseph P. Tracy 1904-5-29 2038 Humboldt hillside near Field's Landing; Northern Coast Region, Humboldt Bay 0 Comment
  CAS-BOT-BC235982  Poa secunda subsp. secunda Joseph P. Tracy 1932-7-17 10693 Humboldt Klamath Mountains. Head of Devil's Hole 1828 Comment
  HSC70904  Poa secunda subsp. secunda R. York 1980-5-18 598 Humboldt Near Black Mountain 792 Comment
  HSC98601  Poa secunda subsp. secunda Cara Witte 2007-6-4 183 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC1103169  Poa secunda subsp. secunda Joseph P. Tracy 1921-4-24 5465 Humboldt facing S Fork of Eel River Phillipsville; Northern Coast Ranges 121 Comment
  CDA2358  Poa trivialis E. C. Whitney 1969-6-2 Humboldt Babe Millsap property, Pepperwood. 0 Comment
  HSC10810  Poa unilateralis J. P. Tracy 1927-6-8 8113 Humboldt Trinidad 61 Comment
  UC39714  Poa unilateralis Harley P. Chandler May, 1901 1140 Humboldt Humboldt Bay; North Coast Ranges 3 Comment
  CDA3404  Polycarpon tetraphyllum Gordon Leppig, Sylvia Leppig 2000-12-7 1524 Humboldt 10th and I Streets, Arcata. Comment
  UC1198996  Polygala californica Joseph P. Tracy 1921-4-24 5455 Humboldt facing South Fork Eel River (Phillipsville); Northern Coast Ranges, , South Fork Eel River 121 Comment
  UC17437  Polygala californica Harley P. Chandler June 1901 1328 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  UC535763  Polygala californica Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  UC1198991  Polygala cornuta var. cornuta Joseph P. Tracy 1926-7-18 7744 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC99420  Polygonum bistortoides K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 69 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
  UC184021  Polygonum bistortoides Joseph P. Tracy 1913-6-17 4151 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (nw slope of mt.) 1066 Comment
  HSC73538  Polygonum douglasii Gail Newton 1980-7-14 1474 Humboldt Near Last Chance Ridge. 1219 Comment
  UC146189  Polygonum douglasii subsp. spergulariiforme Joseph P. Tracy 1908-6 2921 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  HSC55101  Polygonum minimum G. L. Clifton 1979-7-31 11832 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  CAS-BOT-BC109181  Polygonum paronychia Alice Eastwood 1923-8-14 12314 Humboldt Samoa. Comment
  HSC17516  Polygonum paronychia H. E. Parks Feb 1934 4834 Humboldt Stone Lagoon Comment
  RSA286307  Polygonum paronychia Robert F. Thorne 1974-7-29 45080 Humboldt Samoa Dunes. Comment
  CAS-BOT-BC72040  Polypodium calirhiza Alice Eastwood 1907-4-21 5 Humboldt Trinidad Comment
  HSC1122  Polypodium glycyrrhiza L. H. Myers 1963-2-15 50 Humboldt Sand dunes W of Lanpheres Rd. Mad River Slough area Comment
  RSA183501  Polypodium glycyrrhiza H. S. Logsdon 1964-5-13 20 Humboldt 4.0 miles northeast of Orick at Boye s Prairie Comment
  SEINET11723018  Polypodium glycyrrhiza E. A. York 1990-1-10 2671 Humboldt USGS Redwood Field Station, Arcata Comment
  UC370620  Polypodium glycyrrhiza H. E. Parks 1925-6-17 3233 Humboldt Lawrence Creek Comment
  UC1241361  Polypodium scouleri R. J. Rodin 1961-8-10 6807 Humboldt Sequoia Park Eureka; Sequoia Park Comment
  RSA129382  Polypogon interruptus H. S. Yates 1936-6-16 5678 Humboldt 1 mile NE of Samoa 3 Comment
  UC1145081  Polypogon interruptus Joseph P. Tracy 1940-10-5 16748 Humboldt Trinidad 6 Comment
  UC39737  Polypogon interruptus Harley P. Chandler June, 1901 1332 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 304 Comment
  UCD51643  Polypogon interruptus J. B. Davy 1899-6-13 5515 Humboldt Near Pepperwood. Comment
  CAS-BOT-BC233215  Polypogon maritimus Joseph P. Tracy 1930-10-19 9236 Humboldt Eel River, Alton to Fortuna 15 Comment
  UC526768  Polypogon maritimus Joseph P. Tracy 1933-7-20 12811 Humboldt along Mad River near Blue Lake; along Mad River, near Blue Lake 15 Comment
  CAS-BOT-BC232592  Polypogon monspeliensis Doris K. Kildale 1928-7-29 5923 Humboldt Bear River at Capetown Comment
  HSC39900  Polypogon monspeliensis J. P. Smith 1971-10-9 5035 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC89907  Polypogon monspeliensis Leonel Arguello 1989-5-27 Humboldt Lanphere-Christensen Dunes Preserve 3 miles W of Arcata. End of Saltmarsh trail. Comment
  UC1145086  Polypogon monspeliensis Joseph P. Tracy 1938-7-11 16049 Humboldt near Samoa; Humboldt Bay, near Samoa 6 Comment
  UC39746  Polypogon monspeliensis Harley P. Chandler June 1901 1431 Humboldt sandy banks Klamath River; North Coast Ranges, Klamath River 335 Comment
  UC50475  Polypogon monspeliensis Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5514 Humboldt near Pepperwood; near Pepperwood Comment
  HSC73875  Polystichum imbricans M. Baker 1980-7-15 2952 Humboldt Near Whiting Ridge 1341 Comment
  CAS-BOT-BC76660  Polystichum munitum Henry M. Pollard 1946-8-11 s.n. Humboldt Perch Creek, Orleans region Comment
  HSC74743  Polystichum munitum Gail Newton 1981-8-6 2386 Humboldt Near Bug Creek 1125 Comment
  POM305537  Polystichum munitum Henry J. Ramsey, Henry J. Ramsey 1939-10-13 834 Humboldt Highway 299 in mountains. Comment
  RSA430488  Polystichum munitum Lyman Benson 1928-7-9 409 Humboldt Weott Ranger Station. Seaward N coast. Watershed- South Fork Eel Rivers. 61 Comment
  UCSB29341  Polystichum munitum Phelps, M. 1972-3-20 Humboldt 1.5 miles from Gaberville along Old Briceland Rd., 0.5 miles N of roadside. 213 Comment
  RSA430507  Populus trichocarpa Lyman D. Benson 1928-7-8 411 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; Watershed: S Fork Eel River. 61 Comment
  UC1196666  Populus trichocarpa Joseph P. Tracy 1922-10-8 6122 1/2 Humboldt Mad River at Blue Lake; Northern Coast Ranges, Mad River at Blue Lake 30 Comment
  UC275528  Populus trichocarpa Joseph P. Tracy 1923-5-6 6197 Humboldt Blue Lake; Northern Coast Ranges, Blue Lake 30 Comment
  RSA296786  Potamogeton natans Clark L. Miller 1979-5-24 6 -154 Humboldt Clam Beach ponds off Highway 101, north of McKinleyville. Comment
  SBBG88770  Potamogeton natans A. Keedy 1988-9-20 12 Humboldt off Alder Grove Rd, N of Arcata, near Hwy 299, Arcata Salt Marsh Project Comment
  UC1103479  Potamogeton pectinatus Joseph P. Tracy 1939-8-20 16432 Humboldt Big Lagoon 3 Comment
  HSC63026  Potentilla anserina subsp. pacifica J. P. Smith 1971-10-6 4937 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC93520  Potentilla anserina subsp. pacifica Gordon Leppig 1998-6-25 855 Humboldt McKinleyville, Mad River Estuary at end of Murray Rd. 0 Comment
  UC1321457  Potentilla anserina subsp. pacifica Arne Henrik Rousi 12 Humboldt Comment
  HSC102525  Potentilla drummondii M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1512 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC97614  Potentilla glandulosa subsp. glandulosa Cara Witte 2007-5-31 156 Humboldt Along National Forest Route 1. Near Kinsey Ridge. 1.25 miles north of intersection with 4N09. 1308 Comment
  UC420576  Potentilla gracilis P. E. Goddard 1906-6 668 Humboldt Lasseck Pk Comment
  HSC15464  Prosartes hookeri D. E. Anderson 1965-5-15 3691 Humboldt About 7 mi. N of Hoopa on Bloody Camp Prairie Rd. Comment
  HSC103987  Prosartes smithii E. R. Fyer 2015-4-29 31 Humboldt Arcata Community Forest 129 Comment
  UCSB666  Prosartes smithii Parks, H.; Parks, S. 1952-05 Humboldt Spruce Cove, Trinidad 30 Comment
  HSC46018  Prunella vulgaris Catherine Chin 1978-8-5 96 Humboldt Arcata, side road on Spring St., between 16th and 17th Sts. Comment
  UC153993  Prunella vulgaris var. lanceolata Joseph P. Tracy 1909-8-29 3081 Humboldt Humboldt Hill; Northern Coast Region, region about Humboldt Bay, Humboldt H 0 Comment
  CAS-BOT-BC159980  Prunus emarginata Joseph P. Tracy 1934-9-5 13656 Humboldt Horse Mountain 1402 Comment
  CAS-BOT-BC159986  Prunus emarginata Doris K. Kildale 1925-8-17 1228 Humboldt Trinity Summit 1917 Comment
  OBI36664  Prunus emarginata David J. Keil 1983-7-2 17323 Humboldt Ca. 4 mi SE ofSR 299 along titlow Hill Rd below Horse Mtn Summit Rd 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
  HSC100634  Prunus emarginata Carl C. Marshall Jun 1886 183 Humboldt Throughout the county. Comment
  UC1223116  Pseudognaphalium stramineum Joseph P. Tracy 1950-7-15 19044 Humboldt e side Trinity River 1 mi n of mouth of Willow Creek; Trinity River Comment
  HSC74451  Pseudotsuga menziesii var. menziesii Gail Newton 1980-8-10 1991 Humboldt Near Blake Mtn. 1798 Comment
  HSC76291  Pseudotsuga menziesii var. menziesii Denis Kearns 1981-7-23 391 Humboldt Near Whiteys Peak 732 Comment
  RSA254796  Psilocarphus tenellus var. tenellus Thomas W. Nelson, James Nelson 1973-5-28 970 Humboldt McKeown Ranch north of Dinsmore. Comment
  HSC100525  Psoralea physodes Carl C. Marshall Jun 1885 11 Humboldt Pilot Creek. Comment
  HSC102554  Pteridium aquilinum var. pubescens M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1542 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC54568  Pteridium aquilinum var. pubescens Walter Overton, Butler 1979-7-24 9596 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  UC1222154  Pterospora andromedea Joseph P. Tracy 1950-8-8 19274 Humboldt 3 mi e Box Camp; Trinity Summit Comment
  UC642279  Pteryxia terebinthina var. californica Joseph P. Tracy 1929-4-28 8549 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC10868  Puccinellia nutkaensis J. A. Waller 1965-5-16 38 Humboldt Humboldt Bay Comment
  UCD92898  Puccinellia nutkaensis Joseph P. Tracy 1950-6-17 18834 Humboldt at Eureka. 3 Comment
  UCSC000066  Puccinellia nutkaensis H. S. Yates 1936-6-16 5669 Humboldt 1 mile N.E. of Samoa - Eureka 0 Comment
  HSC44551  Pyrola crypta Brad Klipfel 1973-7-15 170 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC76594  Pyrola dentata Teresa Prendusi 1981-7-9 205 Humboldt Near Cedar Camp 1268 Comment
  JEPS58815  Pyrola dentata Joseph P. Tracy 1926-6-6 7564 Humboldt Hoopa Mountain. On road West from Hoopa Valley, Northern Coast Ranges 914 Comment
  HSC98509  Pyrola minor Cara Witte 2008-7-25 939 Humboldt Forest Service Road 5N10. Approximately 1.5 miles north of intersection with Forest Service Road 5N10C. 1319 Comment
  SEINET200715  Pyrola picta Joseeph P. Tracy 1926-6-6 7556 Humboldt Near summit on road west from Hoopa to Bair's Comment
  UC1197568  Pyrola picta Joseph P. Tracy 1908-7-30 2777 Humboldt Northwest slope pf Buck Mountain 914 Comment
  UC154190  Pyrola picta Mrs. M. H. Manning 1901-7-27 314 Humboldt near Hoopa (Bald Hill); Bald Hill Comment
  HSC18695  Pyrus fusca H. E. Parks Apr 1933 4352 Humboldt Spruce Cove, Trinidad Comment
  CAS-BOT-BC62626  Quercus chrysolepis Doris K. Kildale 1928-4-29 5970 Humboldt Horse Mt. Comment
  HSC41321  Quercus chrysolepis Brad Klipfel 1974-9-2 526 Humboldt Horse Mountain Comment
  HSC98518  Quercus chrysolepis Cara Witte 2008-8-6 1013 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1486 Comment
  HSC35716  Quercus garryana Thomas W. Nelson 1975-10-12 2233 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC48346  Quercus garryana Maralyn O'Meara 1974-7-11 527 Humboldt Kneeland, Barry Ridge Comment
  UC1175127  Quercus garryana P. C. Everett and E. K. Balls 1959-10-24 23955 Humboldt 4.7 mi s from Bluff Creek (Hwy 96, from Orleans to Weitchpec) 121 Comment
  UC1193252  Quercus garryana P. Zinke 1950-8-3 144 Humboldt 914 Comment
  CAS-BOT-BC62728  Quercus garryana var. breweri Doris K. Kildale 1926-8-22 2573 Humboldt Bald hills, near Tomlinson's 716 Comment
  RSA134145  Quercus garryana var. garryana Percy C. Everett 1959-10-24 23955 Humboldt 4.7 mi. s. from Bluff Creek, Hwy. 96 from Orleans to Weitchpec. 122 Comment
  RSA609410  Quercus garryana var. garryana Louis C. Wheeler 1958-8-7 7369 Humboldt Fort Baker Manganese Mine. Comment
  CAS-BOT-BC105167  Quercus kelloggii Doris K. Kildale 1928-4-29 5972 Humboldt Horse Mountain Comment
  RSA624390  Quercus kelloggii Louis C. Wheeler 1952-9-14 6931 Humboldt [No location information on label.] Comment
  UCD165089  Quercus parvula var. shrevei Lois W. Weeth; Kerry Heise and John M. Tucker 2003-10-21 s.n. Humboldt 22 mi. from Garberville along Alderpoint Rd. 116 Comment
  UC1388987  Quercus sadleriana Milo S. Baker 1947-8-10 11896 Humboldt 16 mi ne Hoopa (along trail to Trinity Summit, from end of Forest Rd) 1371 Comment
  HSC55117  Quercus vacciniifolia Gilbert Muth 1979-8-1 11892 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  OBI36118  Quercus vacciniifolia David J. Keil 1983-7-2 17324 Humboldt Ca. 4 mi SE of SR 299 along Titlow Hill rd below Horse Mountain Summit rd Comment
  HSC26334  Ranunculus californicus var. californicus Thomas W. Nelson 1971-4-12 376 Humboldt S spit of Humboldt Bay. 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
  HSC82522  Ranunculus occidentalis Thomas W. Nelson 1977-6-15 3441 Humboldt Along old road to Horse Mountain ski area. 1372 Comment
  UC1196228  Ranunculus occidentalis Joseph P. Tracy 1933-7-11 12666 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  UC1196224  Ranunculus occidentalis Joseph P. Tracy 1920-5-18 5327 Humboldt 5 mi above Dyerville; Northern Coast Ranges, South Fork Eel River, Forest Lodge 60 Comment
  UC1196255  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy 1912-7-31 3900 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (nw slope of mt.) 1066 Comment
  CDA3497  Ranunculus parviflorus E. C. Whitney 1962-5-29 Humboldt Millsap property, Pepperwood. 0 Comment
  HSC32043  Ranunculus parviflorus J. D. Ackerman 1974-6-12 317 Humboldt 1 mi. N of Manila between Mad River Slough and sand dunes Comment
  SBBG2270  Ranunculus repens H. and M. Dearing 1939-5-26 3445 c Humboldt near Arcata Comment
  RSA554594  Ranunculus repens Walter Wisura 1993-5-9 4912 Humboldt Hwy 255 W of Arcata. Comment
  HSC56103  Ranunculus uncinatus G. L. Clifton 1979-7-31 11830 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC40639  Ranunculus uncinatus var. parviflorus J. P. Smith 1973-5-26 6858 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC18231  Ranunculus uncinatus var. parviflorus D. E. Anderson 1961-8-11 1735 Humboldt E of Humboldt State College campus. 30 Comment
  HSC59688  Raphanus sativus George Kirn 1977-9-10 Humboldt Eureka, G and 1st St. 8 Comment
  UC535751  Rhamnus californica Eleanor Armstrong 1934-8-24 1142 Humboldt Richardson Grove 121 Comment
  UC61091  Rhamnus californica subsp. californica Harley P. Chandler Jun 1901 1453 Humboldt Klamath River North Coast Ranges Comment
  UC18569  Rhamnus purshiana Harley P. Chandler May 1901 1173 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC592852  Rhamnus purshiana Doris Kildale Gillespie 1932-9-1 Humboldt 1 block n Henderson St. (on S Street, Eureka); Eureka 30 Comment
Read comments
Mar 1 2013
  CAS-BOT-BC56607  Rhododendron macrophyllum Joseph P. Tracy 1906-6-10 2489 Humboldt Kneeland Prairie Road, region about Humboldt Bay 609 Comment
  CAS-BOT-BC56610  Rhododendron macrophyllum Volney Rattan 1878-1-1 s.n. Humboldt unspecified Comment
  UC1121090  Rhododendron macrophyllum A. E. Wieslander 1931-5-17 195 Humboldt Orick-Orleans Road Comment
  UCD20673  Rhododendron macrophyllum A. T. Leiser 1980-7-9 s.n. Humboldt Humboldt County, North of Orick, Hwy 101 reroute, May Creek Watershed +- 1000'. Comment
  UC1197791  Rhododendron occidentale Joseph P. Tracy 1914-9-6 4615 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Region, Bald Mountain 1219 Comment
  SEINET11996977  Rhododendron occidentale F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -296 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  CAS-BOT-BC200378  Rhododendron occidentale var. paludosum Harley P. Chandler 1901-6-1 1448 Humboldt Klamath River 457 Comment
  CAS-BOT-BC433143  Ribes Doris K. Kildale 1927-6-25 3570 Humboldt Shelter Cove Comment
  CAS-BOT-BC433144  Ribes Doris K. Kildale 1928-5-1 5989 Humboldt MacLellan [McClellan] Mountain 914 Comment
  CAS-BOT-BC173365  Ribes lobbii J. H. Thomas 1949-6-13 912 Humboldt Along trail between Le Perron Flat and Whitey's Peak. Six Rivers National Forest. (East of town of Orleans) 1371 Comment
  HSC37446  Ribes marshallii Linda M. Barker, J. O. Sawyer, Jane Sawyer, D. A. Thornburgh 1976-7-3 1631 Humboldt North Trinity Mountain Summit 1940 Comment
  UC1198936  Ribes marshallii Joseph P. Tracy 1942-6-23 17261 Humboldt open ridges near Water-dog Lakes; Trinity Summit 1828 Comment
  CAS-BOT-BC206037  Ribes menziesii C. V. Piper 1921-5-22 s.n. Humboldt Eureka Comment
  CSUSB1882  Ribes menziesii Keith Thompson 1972-3-27 Humboldt Maple Cr. 853 Comment
  HSC20309  Ribes menziesii M. L. Stuart 1965-5-6 64 Humboldt Fern Lake Dam Comment
  HSC79481  Ribes menziesii Kenneth Clark 1980-3-27 559 Humboldt N fork of Dead Man's Gulch 82 Comment
  HSC20310  Ribes menziesii F. S. Griffith 1965-3-20 104 Humboldt 1.0 mi. E of Hwy. 101 along Mad River Rd. Comment
  HSC57146  Ribes nevadense Overton, Butler 1979-7-26 9937 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  UC1222372  Ribes roezlii Joseph P. Tracy 1950-6-18 18850 Humboldt Wilder Ridge Comment
  UC1198939  Ribes roezlii var. cruentum Joseph P. Tracy 1935-3-8 13729 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1280968  Ribes sanguineum H. E. McMinn 1934-6-22 3713 Humboldt n Eureka; Sea Cliff Comment
  UC1541336  Ribes sanguineum Harold E. Parks February 1934 4827 Humboldt Spruce Cove Trinidad Comment
  RSA0018244  Ribes sanguineum S. Ganley 1971-5-29 661 Humboldt Highway 299, along Trinity River. 457 Comment
  RSA0019527  Ribes sanguineum John H. Thomas 1949-6-13 914 Humboldt Along trail between Le Perron Flat and Whiteys Peak. Six Rivers National Forest. East of town of Orleans. 1372 Comment
  CAS-BOT-BC144680  Ribes sanguineum var. glutinosum L. B. Kildale 1930-9-9 10405 Humboldt Bald Mountain 914 Comment
  CAS-BOT-BC144689  Ribes sanguineum var. glutinosum C. Epling; Wm. Robison 1935-7-22 s.n. Humboldt Patrick's Point Comment
  HSC34637  Ribes sanguineum var. glutinosum Robert M. Specht 1975-4-9 121 Humboldt 2.5 mi. N of Trinidad on Patricks Point Dr., W side 61 Comment
  HSC93267  Ribes sanguineum var. glutinosum Gordon Leppig 1998-3-25 723 Humboldt McKinleyville, Central Ave. 43 Comment
  UC902092  Ribes sanguineum var. glutinosum Joseph P. Tracy 1943-3-14 17408 Humboldt vicinity Carlotta 30 Comment
  HSC56118  Ribes viscosissimum Gilbert Muth 1979-8-1 11895 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  UC552283  Rorippa curvisiliqua Joseph P. Tracy 1933-7-25 12857 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  RSA43862  Rorippa curvisiliqua H. M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans. Comment
  HSC41003  Rosa californica J. O. Sawyer 1975-10-17 2714 Humboldt Near Box Camp on Big Hill Rd. to N Trinity Mtn. Comment
  HSC49683  Rosa canina J. O. Sawyer, R. J. Cole 1977-7-3 3019 Humboldt Along Big Hill Rd. (8N01) at Mud Spring. Comment
  BLMAR162  Rosa gymnocarpa Donald Hazlett 1994-6-7 162 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC146477  Rosa gymnocarpa John McLaren 1920-9-1 s.n. Humboldt unspecified Comment
  POM232034  Rosa gymnocarpa I. L. Wiggins 1930-7-22 4695 Humboldt Along bank of Redwood Creek btwn Blue Lake and Willow Creek. Comment
  UC1199021  Rosa nutkana var. nutkana Joseph P. Tracy 1936-8-17 15151 Humboldt near Still Ranch (2 mi s of Field's Landing) 6 Comment
  UC1199026  Rosa nutkana var. nutkana Joseph P. Tracy 1927-7-4 8230 Humboldt Sibley Ranch Iaqua 609 Comment
  UC12912  Rosa nutkana var. nutkana Harley P. Chandler May, 1901 1198 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC183614  Rosa nutkana var. nutkana Joseph P. Tracy 1912-10-20 3997 Humboldt Alton Northern Coast Region 30 Comment
  HSC19620  Rosa rubiginosa J. R. Lippincott 1967-7-16 10 Humboldt 1 mi. E of Blue Lake on Hwy. 299 Comment
  HSC89515  Rubus armeniacus M. Roantree 1985-6-10 81 Humboldt East side of Trinidad Head Comment
  BLMAR469  Rubus leucodermis Jennifer Anthony-Wheeler 2004-11-8 469 Humboldt Titlow Hill, growing along Titlow Hill road off Hwy 300 914 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
  HSC57011  Rubus parviflorus Overton, Butler 1979-7-24 9604 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  HSC100638  Rubus spectabilis Carl C. Marshall Apr 1886 165 Humboldt Everywhere in rich soils. Comment
  HSC37377  Rubus spectabilis Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 503 Humboldt Along Lost Man Creek. 38 Comment
  HSC60111  Rubus spectabilis M. A. Baker 1977-5-1 278 Humboldt E of Humboldt State University. Comment
  RSA245291  Rubus spectabilis J. D. Ackerman, A. M. Montalvo 1973-3-27 41 Humboldt 1.5 miles N of Manila Comment
  CAS-BOT-BC158793  Rubus ursinus Kenneth Clark 1980-6-14 683 Humboldt Upper alluvial terrace of north fork Dead Man's Gulch, Shelter Cove 106 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
  UCD17620  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 044 Humboldt California. Humboldt County: Ettersburg. Comment
  HSC56448  Rudbeckia klamathensis Griswold, Butler 1979-7-12 7201 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1541400  Rumex acetosella W. K. Parks Apr 1934 5279 Humboldt Spruce Cove Trinidad Comment
  HSC44478  Rumex acetosella Brad Klipfel 1973-7-15 194 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA15555  Rumex conglomeratus Carl B. Wolf 1927-8-30 1231 Humboldt 2 miles S of Petrolia on the Matole River near point where the road crosses the river. Comment
  UC1101197  Rumex conglomeratus Malcolm A. Nobs, S. Galen Smith 1949-8-9 1236 Humboldt pond on s side of the town of Blue Lake town of Blue Lake Comment
  HSC90647  Rumex crispus Gail Newton 1982-6-10 3604 Humboldt Elk River Wildlife Area, Eureka Comment
  UCD101160  Rumex crispus Joseph P. Tracy 1948-9-12 18209 Humboldt Trinity Summit. Box Camp. 1463 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
  RSA755178  Rumex obtusifolius Robert F. Thorne, Percy C. Everett 1965-8-8 35261 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  JEPS39873  Rumex occidentalis Milo S. Baker 1923-8-4 177 Humboldt s end Stone Lagoon Comment
  UC1070542  Rumex occidentalis H. L. Person 1932-7-16 Humboldt hwy n of Trinidad; Rock Point Quad. Comment
Read comments
Aug 3 2007
  UC672927  Rumex occidentalis Joseph P. Tracy 1936-6-3 14854 Humboldt near Lack Pond; Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC434097  Rumex transitorius Carl B. Wolf 1927-8-28 1182 Humboldt Salt Marsh, Eureka Bay, on the road to Arcata Comment
  UCD92330  Rytidosperma R. Tofsrud 1946-11-1 33 Humboldt Humboldt County. Comment
  HSC100868  Rytidosperma penicillatum J. P. Smith Sep 2005 12151 Humboldt Trinidad Head. 61 Comment
  JEPS79972  Sagina apetala Joseph P. Tracy 1933-5-19 12200 Humboldt Alton to Fortuna (Eel R.); Eel R. 15 Comment
  UC668104  Sagina decumbens subsp. occidentalis Joseph P. Tracy 1936-6-3 14851 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley, Willow Creek 152 Comment
  UCD98453  Sagina maxima subsp. crassicaulis Joseph P. Tracy 1947-9-1 17927 Humboldt Big Lagoon. 6 Comment
  UC205455  Sagina procumbens Joseph P. Tracy 1920-6-6 5338 Humboldt Freshwater Creek near Wrangletown; Northern Coast Ranges, around Humboldt Bay, Freshwater Creek 30 Comment
  CAS-BOT-BC132710  Salix A. T. Whittemore 1980-3-15 80 -004 Humboldt Arcata, in residential area, along Alliance Road from Foster Ave. to the railroad tracks Comment
  CDA39544  Salix alba Gordon, Sylvia and Kai Leppig 2000-4-16 1297 Humboldt Arcata; Arcata March and Wildlife Sanctuary, west bank of Hauser Marsh. Comment
  CAS-BOT-BC129887  Salix bonplandiana Mrs. H. P. Bracelin 1931-5-1 270 Humboldt Sylvandale, between Miranda and Meyers, South Fork of Eel River Comment
  CAS-BOT-BC129892  Salix bonplandiana Joseph P. Tracy 1933-6-9 s.n. Humboldt Shively - Northern Coast Ranges 30 Comment
  UC1196669  Salix eastwoodiae Joseph P. Tracy 1935-7-26 14266 Humboldt meadows at Water Dog Lake; Trinity Summit 1828 Comment
  SJSU219  Salix exigua C. R. Ball, H. E. Parks & J. P. Tracy 1932-5-17 1336 Humboldt above Trinity R, 1 mi below bridge on Trinity Highway 152 Comment
  UC490571  Salix exigua Joseph P. Tracy 1932-10-8 10868 Humboldt at Willow Creek Trinity R.; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC526710  Salix exigua H. E. Parks and Joseph P. Tracy 1934-7-25 11090 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges 152 Comment
  UC469444  Salix exigua var. hindsiana Joseph P. Tracy 1931-9-7 9640 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC481312  Salix exigua var. hindsiana Harold E. Parks and Joseph P. Tracy 1931-5-17 975 Humboldt mouth of Willow Creek at Trinity R. 150 Comment
  CAS-BOT-BC106852  Salix hookeriana Harold E. Parks 1931-5-12 0952 Humboldt Samoa, Humboldt Bay Comment
  CAS-BOT-BC107722  Salix hookeriana Joseph P. Tracy 1936-10-24 15203 Humboldt Fortuna, on bank of Eel River 15 Comment
  CAS-BOT-BC107760  Salix hookeriana Harold E. Parks 1931-5-28 0999 Humboldt Little River Lagoon Comment
  CAS-BOT-BC107766  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1210 b Humboldt Little River Lagoon, 4 1/2 miles south of Trinidad Comment
  CAS-BOT-BC107769  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1222 Humboldt In pine barrens near the coast, 1 mile north of Samoa. Comment
  HSC20072  Salix hookeriana H. E. Parks, S. T. Parks 1932-4-12 1112 Humboldt Blue Slide, Van Duzen River Comment
  HSC40870  Salix hookeriana Linda M. Barker 1976-4-13 1383 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata Comment
  HSC40878  Salix hookeriana Linda M. Barker 1976-9-3 1693 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC6821  Salix hookeriana H. E. Parks 1931-3-24 912 Humboldt Along lower Eel River, near Fortuna Comment
  JEPS14759  Salix hookeriana Joseph P. Tracy 1926-3-14 7388 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  LA208754  Salix hookeriana Harold E. Parks; 1931-5-28 1000 Humboldt Little River Lagoon, Trinidad; at sea level Comment
  RSA183589  Salix hookeriana R. D. Zortman 1963-3-9 11 Humboldt 5 miles NE of Arcata. S of the Mad River, off Warren Creek Rd. 91 Comment
  RSA239712  Salix hookeriana Larry E. DeBuhr 1973-4-23 995 Humboldt Big Lagoon 10 miles S of Orick, SW end of lagoon Comment
  SBBG27479  Salix hookeriana H. E. Parks 1931-5-28 999 Humboldt Little River Lagoon Comment
  UC1173588  Salix hookeriana Joseph P. Tracy 1937-7-27 15508 Humboldt Lindsay Creek Mad River (mouth) 15 Comment
  UC1196545  Salix hookeriana Joseph P. Tracy 1932-5-10 9951 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC1196547  Salix hookeriana Joseph P. Tracy 1926-2-21 7360 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC1225924  Salix hookeriana Joseph P. Tracy 1947-8-31 17930 Humboldt sand dunes near Samoa; Humboldt Bay 6 Comment
  UC1225928  Salix hookeriana Joseph P. Tracy 1947-2-23 17668 Humboldt Bridgeville Van Duzen River (along river) 198 Comment
  UC275504  Salix hookeriana Joseph P. Tracy 1925-11-8 7312 Humboldt Fieldbrook Northern Coast Ranges, Fieldbrook 60 Comment
  UC469114  Salix hookeriana Joseph P. Tracy 1931-8-23 9622 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC469123  Salix hookeriana Joseph P. Tracy 1927-9-25 8381 Humboldt Still place Northern Coast Region, around Humboldt Bay (adjacent to swamp) 6 Comment
  UC481270  Salix hookeriana Harold E. Parks 1931-5-28 1000 Humboldt Little River Lagoon Comment
  UC481278  Salix hookeriana Harold E. Parks 1931-8-1 1053 Humboldt Little River Lagoon Comment
  UC481333  Salix hookeriana Harold E. Parks 1931-5-27 998 Humboldt Bishop Pine Lodge Trinidad 76 Comment
  UC481349  Salix hookeriana Harold E. Parks 1931-5-12 953 Humboldt Samoa Comment
  UC481387  Salix hookeriana Harold E. Parks 1931-3-24 915 a Humboldt Trinidad 90 Comment
  UC512014  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1229 Humboldt 1 1/2 mi e Alton; Van Duzen River 30 Comment
  UC512092  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1216 Humboldt 1 mi n Samoa (in pine barrens near the coast) Comment
  UC512104  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1208 Humboldt 4 1/2 mi s Trinidad; Little River Lagoon Comment
  POM218953  Salix laevigata H. P. Bracelin 1931-5-1 271 Humboldt Sylvandale, between Miranda and Meyers. S Fork of Eel River. Comment
  UC469475  Salix laevigata Joseph P. Tracy 1931-10-18 9737 Humboldt on Eel R. Camp Grant; Northern Coast Ranges, Eel R., Camp Grant 60 Comment
  UC519390  Salix laevigata Joseph P. Tracy 1933-10-15 13095 Humboldt near Miranda (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  CAS-BOT-BC125221  Salix lasiandra var. lasiandra Harold E. Parks; Joseph P. Tracy 1931-5-17 0966 Humboldt Mouth of Willow Creek at Trinity River, on banks of Willow Creek 150 Comment
  CAS-BOT-BC128191  Salix lasiandra var. lasiandra Harold E. Parks; Susan T. Parks 1931-8-15 1078 Humboldt Blue Slide, Van Duzen River 100 Comment
  CAS-BOT-BC107102  Salix lasiolepis Joseph P. Tracy 1933-2-26 10912 Humboldt Miranda, along south fork of Eel River 121 Comment
  CAS-BOT-BC107600  Salix lasiolepis Joseph P. Tracy 1933-3-19 10931 Humboldt Blue Slide, on Van Duzen River 91 Comment
  CAS-BOT-BC107609  Salix lasiolepis Joseph P. Tracy; Harold E. Parks; Carleton R. Ball 1932-5-17 1333 Humboldt In sandy channel of Trinity River, near bridge on Trinity Highway 152 Comment
  CAS-BOT-BC107643  Salix lasiolepis Joseph P. Tracy 1933-4-2 10960 Humboldt On open grassy slope of Berry's Mountain, on Trinity Highway, east of Redwood Creek 762 Comment
  CAS-BOT-BC107644  Salix lasiolepis Joseph P. Tracy 1933-4-2 10959 Humboldt On open grassy slope of Berry's Mountain, on Trinity Highway, east of Redwood Creek 762 Comment
  CHSC96727  Salix lasiolepis Gordon Leppig 1999-4-15 1123 Humboldt Big Lagoon County Park, Big Lagoon Bog. On eastern fen edge. NAD 27, UTM Zone 10, 405321E, 4557202N. 3 Comment
  HSC98772  Salix lasiolepis Cara Witte 2008-7-7 842 Humboldt National Forest Road 5N10. 2 miles south of intersection with Friday Ridge Road. Near waterhole sign. 1224 Comment
  JEPS14751  Salix lasiolepis Joseph P. Tracy 1932-6-4 10126 Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  POM161044  Salix lasiolepis Joseph P. Tracy 1926-8-12 7758 Humboldt Redwood Creek. At Berry's. Comment
  UC506343  Salix lasiolepis Joseph P. Tracy 1933-5-11 10932 Humboldt Blue Slide, on Van Duzen River 91 Comment
  UC506394  Salix lasiolepis Joseph P. Tracy 1932-6-19 10244 Humboldt Buck Mountain Northern Coast Ranges (lower foothills of nw slope, in gully) 762 Comment
  UC512029  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1329 Humboldt e Redwood Creek (w slope of mt., on Trinity Hwy); Berry's Mountain 762 Comment
  UC526718  Salix lasiolepis Joseph P. Tracy 1934-7-9 13355 Humboldt Dobbyn Creek Northern Coast Ranges, Dobbyn Creek 152 Comment
  UC54934  Salix lasiolepis P. E. Goddard 1901-8-1 141 Humboldt Hupa Comment
  HSC102022  Salix lucida subsp. lasiandra M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 923 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  POM219689  Salix lucida subsp. lasiandra H. E. Parks 1931-5-14 959 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  RSA298153  Salix lucida subsp. lasiandra Thomas W. Nelson 1978-4-23 3888 Humboldt At jct of Copher and Samoa Rds. N of Samoa. Comment
  RSA475257  Salix lucida subsp. lasiandra Lyman D. Benson 1929-7-15 1809 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  CAS-BOT-BC125611  Salix melanopsis Harold E. Parks 1931-5-14 0956 a Humboldt Van Duzen River above Bridgeville 300 Comment
  CAS-BOT-BC125633  Salix melanopsis Harold E. Parks 1931-10-15 01077 Humboldt Bishop Pine Lodge, Trinidad 75 Comment
  CAS-BOT-BC125634  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt East of Redwood Highway, 6 km. south of Alton 20 Comment
  POM89799  Salix melanopsis Joseph P. Tracy 1920-5-31 5334 Humboldt Mouth of Yager Creek. 30 Comment
  UC1196573  Salix melanopsis Joseph P. Tracy 1931-10-3 9703 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC481284  Salix melanopsis Harold E. Parks 1931-5-14 960 Humboldt Van Duzen R. between Alton and Carlotta; Van Duzen R. 15 Comment
  UC481343  Salix melanopsis Harold E. Parks 1931-10-15 1077 Humboldt Bishop Pine Lodge Trinidad 75 Comment
  UC519377  Salix melanopsis Joseph P. Tracy 1933-5-20 12258 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  CAS-BOT-BC129138  Salix scouleriana Joseph P. Tracy 1932-7-13 10507 Humboldt Open ground at Corral Prairie - Trinity Summit, Klamath Mountains 1524 Comment
  JEPS38417  Salix scouleriana W. L. Jepson 1932-8-1 16466 Humboldt Bull Creek 121 Comment
  LA208918  Salix scouleriana Harold E. Parks; 1931-5-12 955 a Humboldt Samoa; Humboldt Bay 0 Comment
  RSA47087  Salix scouleriana Doris K. Kildale 1926-9-5 2637 Humboldt On trail between Goat Camp and Red Peak, Lassack's Peaks 1677 Comment
  UCR143480  Salix scouleriana H. E. Parks 1931-5-12 0951 Humboldt North Coast, Bishop Pine Lodge, Trinidad 150 Comment
  POM219690  Salix sessilifolia H. E. Parks 1931-5-14 961 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  CAS-BOT-BC128954  Salix sitchensis Kenneth Clark 1980-3-24 546 Humboldt On alluvial terrace of Dead Man's Gulch - Shelter Cove 15 Comment
  CAS-BOT-BC128955  Salix sitchensis Harold E. Parks 1931-3-26 908 Humboldt Alton, on Van Duzen River 15 Comment
  HSC37885  Salix sitchensis Thomas W. Nelson 1976-4-3 2287 Humboldt Van Duzen River at Grizzley Creek Comment
  UC1196714  Salix sitchensis Joseph P. Tracy 1933-5-20 12265 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC1196718  Salix sitchensis Joseph P. Tracy 1932-5-14 10063 Humboldt Scotia Bluffs Northern Coast Ranges, Scotia Bluffs 30 Comment
  UC490534  Salix sitchensis Joseph P. Tracy 1932-7-13 10506 Humboldt wet meadow at Corral Prairie; Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  UC506362  Salix sitchensis Joseph P. Tracy 1933-3-19 10928 Humboldt Van Duzen R. Blue Slide; Northern Coast Ranges, , Blue Slide 91 Comment
  UC54676  Salix sitchensis J. P. Tracy 1901-4-7 1008 Humboldt vicinity of Eureka 0 Comment
  HSC2201  Salix tracyi J. P. Tracy 1933-4-9 10967 Humboldt Bridgeville, along Van Duzen River 229 Comment
  SBBG7380  Sambucus nigra subsp. caerulea K. K. Muller 1954-6-20 627 Humboldt 3 mi S of Scotia Comment
  SDSU2915  Sambucus racemosa var. racemosa Leslie Hickson 1990-4-15 15 IV90D Humboldt Across the street from the Oak Street and Apple Valley Lane junction. Eureka. Comment
  HSC19724  Sanguisorba minor D. E. Anderson 1963-5-25 2491 Humboldt Ca. 2 mi. S of Capetown Comment
  CAS-BOT-BC157200  Sanguisorba officinalis L. B. Kildale 1930-7-11 10208 Humboldt Snow Camp head of Redwood Creek Comment
  HSC26344  Sanicula arctopoides Thomas W. Nelson 1971-4-12 377 Humboldt S spit of Humboldt Bay. Comment
  JEPS184  Sanicula arctopoides Joseph P. Tracy 1936-5-30 14838 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  HSC38937  Sanicula crassicaulis Linda M. Barker 1976-5-13 1485 Humboldt 3 mi. W of Arcata. Comment
  UCD127966  Sanicula crassicaulis Linda M. Barker 1976-6-1 1540 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  SEINET12119621  Sanicula tracyi J. P. Tracy 1950-1 19022 Humboldt Sproston's Place, 3 mi S of Burr Valley Comment
  HSC69867  Sanicula tuberosa Thomas W. Nelson 1978-5-28 4095 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  JEPS972  Sanicula tuberosa Joseph P. Tracy 1933-7-11 12688 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  UC1197082  Sanicula tuberosa Joseph P. Tracy 1908-6 2715 Humboldt Northern Coast Ranges, at foot of Buck Mt., on Van Duzen River Van Duzen River; Northern Coast Ranges, Buck Mt., Van Duzen River 762 Comment
  UC314593  Sanicula tuberosa Joseph P. Tracy 1923-7-4 6528 Humboldt Northern Coast Ranges, Valley of South Yager Creek South Yager Creek; Northern Coast Ranges, Valley of South Yager Creek 762 Comment
  UC153999  Satureja douglasii J. P. Tracy 1905-6-25 2201 Humboldt immediate vicinity Eureka 0 Comment
  UC709459  Saxifraga marshallii Joseph P. Tracy 1941-3-26 16834 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC492227  Saxifraga mertensiana Joseph P. Tracy 1927-4-2 7884 Humboldt South Fork Eel River between Miranda and Redway; North Coast Ranges, South Fork Eel River 91 Comment
  RSA0101647  Sceptridium multifidum Doris K. Kildale 1937-8-26 15341 Humboldt Christmas Prairie. Comment
  UCD126460  Schedonorus arundinaceus A. H. Murphy 1947-5-15 s.n. Humboldt Sherman Flat, ca. 3.5 miles north of Blocksburg. Comment
  CAS-BOT-BC111333  Schoenoplectus acutus var. occidentalis Robert F. Thorne; P. Everett 1965-8-9 35283 Humboldt Big Lagoon 3 Comment
  CAS-BOT-BC111334  Schoenoplectus acutus var. occidentalis LeRoy Abrams; R. C. Bacigalupi 1922-6-25 8272 Humboldt Big Lagoon south of Orick Comment
  HSC85847  Schoenoplectus americanus L. P. Janeway 1983-9-24 702 Humboldt S side of Big Lagoon at county camp ground, 10-30 ft. from water line 3 Comment
  POM160902  Scirpus congdonii Joseph P. Tracy 1924-7-4 6707 Humboldt Snow Camp. 1372 Comment
  HSC48382  Scirpus microcarpus D. H. Norris May 1970 12465 Humboldt Gold Bluff Beach, Prairie Creek Redwoods State Park Comment
  CHSC2305  Scoliopus bigelovii V. Holt 1933-4-10 Humboldt Comment
  SEINET3991333  Scoliopus bigelovii Unknown 1922-5-14 6049 Humboldt Kneeland Prairie 762 Comment
  CDA39390  Scoliopus bigelovii Q. L. Holdeman 1963-2-2 s.n. Humboldt West side of Highway 101, just north of Redcrest. 0 Comment
  HSC100562  Scoliopus bigelovii Carl C. Marshall Feb 1886 149 Humboldt Woods near coast. Comment
  HSC15640  Scoliopus bigelovii E. W. Styskel 1963-3-9 6 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  UCD18586  Scoliopus bigelovii Roman Gankin 1956-3-17 104 Humboldt off US Hwy 101, south boundary of Jenson Grove, near creek. Comment
  HSC37231  Scrophularia californica Lon Hall 1975-6-20 403 Humboldt About 2 mi. N from Shelter Cove Rd. on Horse Mtn. Rd., along Bear Creek, from streamside up to unused dirt logging road above creek 488 Comment
  HSC56430  Scutellaria antirrhinoides Griswold, Butler 1979-7-10 7138 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  UC1239705  Scutellaria antirrhinoides Joseph P. Tracy 1927-7-24 8296 Humboldt Mattole Valley 152 Comment
  UC1239707  Scutellaria antirrhinoides Joseph P. Tracy 1930-7-23 9123 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1432 Comment
  HSC25984  Scutellaria californica Thomas W. Nelson 1970-9-3 228 Humboldt Mad River. Comment
  HSC79269  Sedum laxum subsp. flavidum D. K. Imper 1983-7-13 Humboldt Six Rivers National Forest, Bennett Peak Comment
  JEPS109415  Sedum laxum subsp. heckneri D. W. Taylor 2004-6-24 19137 Humboldt Clear Lake, along Titlow Hill road. Comment
  UC1198838  Sedum laxum subsp. heckneri Joseph P. Tracy 1947-7-9 17865 Humboldt Horse Mountain Horse Mountain (on barren ledge of rock) 1432 Comment
Read comments
Aug 17 2011
  HSC44072  Sedum laxum var. heckneri Thomas W. Nelson, Jane Nelson 1977-6-19 3456 Humboldt W side of Middle Peak of Mt. Lassic group 1768 Comment
  CAS-BOT-BC63790  Sedum radiatum subsp. radiatum Doris Kildale Gillespie 1931-6-7 10602 Humboldt Soth Forb Mt. Blake Lookout. 1726 Comment
  HSC100455  Sedum spathulifolium Carl C. Marshall Jun 1887 471 Humboldt Rocks, S Humboldt. Comment
  HSC49097  Sedum spathulifolium var. pruinosum Patricia Shesgreen 1978-7-30 120 Humboldt Sea Lion Gulch, 50 yards from ocean along stream bank Comment
  HSC6480  Sedum spathulifolium var. spathulifolium William J. Ferlatte, B. D. Rogers 1966-6-15 2103 Humboldt Larabee Valley 762 Comment
  HSC95768  Selaginella kraussiana Gordon Leppig 2000-4-12 1290 Humboldt Arcata: behind Humboldt State University, at base of stump near Fern Lake spillway 49 Comment
  CDA8589  Senecio bolanderi E. C. Whitney 1970-6-25 Humboldt Mountain View. 0 Comment
  HSC49795  Senecio elegans R. York 1979-5-18 300 Humboldt Stabilized dunes opposite the Louisiana Pacific mill in Samoa Comment
  HSC70329  Senecio integerrimus M. A. Baker 1980-6-8 1884 Humboldt Near Buck Flat. 1554 Comment
  UC581708  Senecio integerrimus var. major Joseph P. Tracy 1935-7-28 14326 Humboldt Head of Devils Hold Trinity Summit 1828 Comment
  UC1199490  Senecio minimus Joseph P. Tracy 1920-9-19 5400 Humboldt along newly constructed road, North Fork of Mad River; Northern Coast Ranges 304 Comment
  UCD135606  Senecio minimus R. Tofsrud Date Unknown s.n. Humboldt Between Capetown and Ferndale. Comment
  UC1199235  Senecio sylvaticus Joseph P. Tracy 1934-8-31 13652 Humboldt along road through woods Kneeland Prairie Kneeland Prairie 762 Comment
  UCSB6689  Senecio sylvaticus Keator, Glenn 1958-6-18 Humboldt Near Ettersburg Comment
  HSC58076  Senecio triangularis G. L. Clifton, Griswold 1979-8-1 11977 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UC1199237  Senecio vulgaris Joseph P. Tracy 1918-4-21 4880 Humboldt on old Kneeland Prairie Road near Newell's Camp (around Humboldt Bay); Northern Coast Ranges, around Humboldt Bay 304 Comment
  UC963844  Senecio vulgaris H. E. Parks and S. T. Parks June 1943 24234 Humboldt Spruce Cove North Coast Ranges, , Spruce Cove (Trinidad) 60 Comment
  HSC6135  Senecio vulgaris S. R. Johnson 1965-4-16 42 Humboldt 1 mi. N of Luffenholtz Beach Comment
  CAS-BOT-BC85837  Sequoia sempervirens Doris K. Kildale 1926-8-23 2557 Humboldt North Fork of Eel River Comment
  CAS-BOT-BC85844  Sequoia sempervirens Aven Nelson; Ruth A. Nelson 1933-5-15 587 Humboldt Redwood Highway Comment
  HSC12956  Sequoia sempervirens M. Athey, D. La Conte 1970-11-28 12 Humboldt HSU campus Comment
  HSC85756  Sequoia sempervirens R. W. Becking 1985-1-17 Humboldt HSU Campus, NRS Building SW corner Comment
  NY64458  Sequoia sempervirens J. P. Tracy 1935-12-8 14764 Humboldt Near Korbel 304.8 Comment
  SEINET11737926  Sequoia sempervirens K. S. Erdman 1970-1 4840 Humboldt Redwood Creek, about 2-3 mi above the road end, near McArthur and Elam Creeks, Redwood Nat'l Park Comment
  JEPS12497  Sherardia arvensis W. L. Jepson 1934-5-7 Humboldt Buckeye Prairie; Bull Creek Comment
  HSC19859  Sherardia arvensis John A. Dubois 1962-5-23 25 Humboldt 20 mi. E of Arcata Comment
  BLMAR281  Sidalcea malviflora subsp. patula Jennifer Anthony-Wheeler 1999-5-28 281 Humboldt King range, growing along windy pt rd about 1/2 way to the spring exclosure 140 Comment
  HSC103274  Sidalcea malviflora subsp. patula John McRae 2007-6-10 Humboldt Approx. 75 ft. N of NE corner of Fieldbrook School property, west side of Fieldbrook Rd., on private property. 44 Comment
  UC176967  Sidalcea malviflora subsp. patula Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3597 Humboldt near Hydesville; Northern Coast Region 30 Comment
  CAS-BOT-BC5794  Sidalcea oregana subsp. eximia Joseph Prince Tracy 1907-6-25 2578 Humboldt In valley of Elk River, region about Humboldt Bay 152 Comment
  UC205469  Sidalcea oregana subsp. eximia Joseph P. Tracy 1920-7-25 5344 Humboldt Dows Prairie Northern Coast Region, around Humboldt Bay (around Humboldt Bay) 60 Comment
  UC1197970  Sidalcea oregana subsp. spicata Joseph P. Tracy 1935-7-27 14275 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  HSC35031  Silene bolanderi Thomas W. Nelson, James Nelson 1975-5-24 1849 Humboldt McKeown Ranch, N of Dinsmore. Comment
  HSC35274  Silene bolanderi A. M. Montalvo, J. D. Ackerman 1975-6-22 493 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36. Comment
  HSC97921  Silene californica Cara Witte 2007-6-14 275 Humboldt Along National Forest 1. Near Kinsey Ridge. 2 miles north of intersection with 4N06. 1319 Comment
  POM286443  Silene californica Lyman Benson 1928-7-12 466 Humboldt Weott Ranger Station. Seaward N Coast mtn range. S Fork Eel River. 61 Comment
  CHSC110703  Silene campanulata subsp. campanulata Dean Wm. Taylor 2004-6-24 19130 Humboldt North Coast Range, Horse Mountain, along Titlow Hill road 0.4 miles north from the junction with the road to the mountain summit. 1310 Comment
  JEPS22945  Silene campanulata subsp. glandulosa Volney Rattan 1883-1 Humboldt Hoopa Valley Comment
  HSC57065  Silene douglasii Overton, Butler 1979-7-24 9735 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  UCD98626  Silene gallica Linda M. Barker 1976-6-14 1593 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC61770  Silene gallica Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan. Comment
  CAS-BOT-BC389056  Silene laciniata subsp. californica Carl B. Wolf 1927-8-28 1175 Humboldt On the grade 9 mi. from Willow Creek, Lord Ellis Road to Blue Lake Comment
  HSC4167  Silene laciniata subsp. californica J. Wendell Howe 1931-6-7 Humboldt Wildcat Rd. W of Ferndale Comment
  CAS-BOT-BC75283  Sisymbrium officinale Doris K. Kildale 1926-4-4 1725 Humboldt Eureka. Comment
  JEPS109834  Sisyrinchium bellum Dean W. Taylor 2005-6-10 19344 Humboldt Bear River Ridge, along the Mattole Road 3 road miles North (uphill) from Capetown 335 Comment
  SEINET4171044  Sisyrinchium bellum C. C. Harris, S. K. Harris 1942-6-9 1219 Humboldt Hillside, 3 miles north and 1 mile west of Fernbridge 33 Comment
  RSA21200  Sisyrinchium californicum Carl B. Wolf 1937-8-10 9088 Humboldt Big Lagoon, bog at state park. 6 Comment
  JEPS62118  Smilacina racemosa W. L. Jepson 1902-6-29 1950 Humboldt Hupa Rd. Berry's Ranch, Redwood Creek Comment
  UC673109  Solanum americanum Joseph P. Tracy 1940-10-17 16767 Humboldt 2 - 5 mi e of the South Fork (along Eel River, Camp Grant); Eel River, Camp Grant 45 Comment
  UCD126873  Solanum aviculare Robert F. Thorne; P. Everett 1965-8-5 35160 Humboldt Samoa Dunes, at edge of Humboldt Bay. 3 Comment
  HSC59674  Solanum douglasii George Kirn 1977-10-20 Humboldt Eureka Bayfront, 0.5 mi. E of Hwy. 255 8 Comment
  SEINET6030917  Solanum sarachoides Joseph P. Tracy 1940-10-15 16758 Humboldt Trinity River Valley, Willow Creek Comment
  CAS-BOT-BC154206  Solanum umbelliferum L. Abrams 1918-6-16 7132 Humboldt Willow Creek Comment
  CAS-BOT-BC157484  Solanum umbelliferum H. M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. Trail 1524 Comment
  BLMAR139  Solanum xanti Donald Hazlett 1994-6-7 139 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC205162  Solidago elongata Joseph P. Tracy 1919-9-22 5260 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1889 Comment
  UC581769  Solidago elongata Joseph P. Tracy 1937-8-12 15654 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC365671  Solidago spathulata Harley P. Chandler 1901-5-1 1203 Humboldt North Coast Ranges. Humboldt Bay 30 Comment
  CHSC423  Solidago spathulata M. Anthony 1960-5-1 Humboldt Coastal. Comment
  SD38300  Solidago spathulata Edith A. Purer 1932-7-27 4147 Humboldt Samoa Comment
  UCD136059  Solidago spathulata Linda M. Barker 1976-8-2 1670 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  UCSC000787  Solidago spathulata H. L. Person 1932-7-20 s.n. Humboldt Eureka, Field Brook, Tinriesia Forest Comment
  HSC12548  Sonchus oleraceus C. Kline 1970-11-15 77 Humboldt 4.2 mi. N of Trinidad, olf Hwy. 101 Comment
  HSC21344  Sparganium angustifolium Paul Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  CAS-BOT-BC235371  Spartina densiflora W. A. Silveus 1938-7-10 2966 Humboldt Eureka Comment
  RSA187158  Spergula arvensis John H. Thomas 1966-3-19 11488 Humboldt Southern end of Big Lagoon, just inland from the coast between Eureka and Crescent City. 0 Comment
  SEINET11935224  Spergula arvensis F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -307 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  CHSC14126  Spergula arvensis subsp. arvensis D. Joley 1967-8-16 49 Humboldt Found at a fish hatchery 4 mi n of Orick. Comment
  UC162714  Spergula arvensis subsp. arvensis Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5485 Humboldt near Camp Grant 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
  HSC37993  Spergularia rubra Peter Sorensen 1976-6-2 Humboldt Woodley Island, Humboldt Bay 1 Comment
  HSC43208  Spergularia rubra R. Sutherland 1976-8-18 8 .18876 Humboldt 183 Comment
  CAS-BOT-BC149620  Spiraea douglasii Harley P. Chandler 1901-5-1 1197 Humboldt Humboldt Bay 30 Comment
  RSA43849  Spiraea douglasii H. M. Pollard 1947-8-19 s.n. Humboldt Klamath River [N of] Redcap Creek. Orleans Region. Comment
  RSA472779  Spiraea douglasii Charlotte M. Hoak 1931-7-14 s.n. Humboldt Alton. Comment
  UC666996  Spiranthes romanzoffiana Joseph P. Tracy 1937-8-22 8341 Humboldt near High Prairie; Bald Mountain 1066 Comment
  JEPS63050  Stachys ajugoides var. rigida Joseph P. Tracy 1937-8-12 15652 Humboldt Snow Camp 1402 Comment
  JEPS63079  Stachys ajugoides var. rigida Lincoln Constance 1934-5-26 663 Humboldt s end Dyerville Bridge; South Fork Eel River, Bull Creek Region 45 Comment
  UC577313  Stachys ajugoides var. rigida Joseph P. Tracy 1935-7-18 14102 Humboldt Table Bluff 15 Comment
  UC668214  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15969 Humboldt near Panther Gap (on road between Bull Creek to Mattole) 822 Comment
  UCLA70839  Stachys ajugoides var. rigida Joseph P. Tracy 1937-6-20 15342 Humboldt Bear River 152 Comment
  UCLA71142  Stachys ajugoides var. rigida Joseph P. Tracy 1938-8-21 16131 Humboldt in front of s end Stone Lagoon (along coast); Dry Lagoon 3 Comment
  HSC89498  Stachys chamissonis P. A. Daly 1984-5-6 2 Humboldt Trinidad Head 61 Comment
  POM283395  Stachys chamissonis Lyman Benson 1928-7-10 s.n. Humboldt Clam Beach, 8 mi. S. of Trinidad. 15 Comment
  RSA447390  Stachys emersonii Bonnie C. Templeton 1964-6-13 10089 Humboldt Trinidad Head, near Lighthouse Point. Comment
  HSC63637  Stachys rigida J. P. Smith 1973-5-26 6863 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC14418  Stachys rigida P. Markle 1962-5-19 47 Humboldt Beginning of trail in woods near HSC campus near reservoir 30 Comment
  SEINET12273954  Stachys rigida L. K. Henry 1971-1 s.n. Humboldt along Rt. 36, 2 mi E of Dinsmore in Six Rivers National Forest Comment
  HSC58204  Stachys rigida var. rigida Walter Overton 1979-8-1 12317 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  SDSU7951  Stachys rigida var. rigida D. F. Howe 1964-8-7 3943 Humboldt Hoopa Valley 1067 Comment
  SD29272  Stachys rigida var. rigida Lincoln Constance 1934-5-26 663 Humboldt Sand and gravel bar of S. Fork of Eel River, S. end of Dyerville Bridge. 46 Comment
  RSA118623  Stellaria media Marcus E. Jones 1924-4-26 s.n. Humboldt Fortuna. Comment
  HSC99075  Stellaria nitens C. Witte 2007-5-10 16 Humboldt Along National Forest 1, near Kinsey Ridge. .2 miles south of intersection with 5N04. 1451 Comment
  HSC57914  Stenanthium occidentale Gilbert Muth 1979-7-31 11524 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  HSC58220  Stenanthium occidentale Walter Overton 1979-8-1 12360 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  UC1197796  Stenanthium occidentale Joseph P. Tracy 1947-8-24 17901 Humboldt Box Camp; Trinity Summit 1463 Comment
  HSC6235  Stephanomeria exigua Richard Spjut 1968-11-2 256 Humboldt On the SW slope of Chaparral Mtn. 915 Comment
  HSC40316  Stipa lemmonii Thomas W. Nelson 1976-7-9 2994 Humboldt Along ridge S of the E peak of the Lassic Peak (Signal Peak) group 1707 Comment
  BLMAR677  Stipa lemmonii var. lemmonii Jennifer Wheeler 2013-7-10 677 Humboldt King range, HJ Ridge 609 Comment
  BLMAR48  Stipa pulchra Brad Barr June, 1982 48 Humboldt King range, ridgetop above Randall Creek and Spanish Flat Comment
  HSC38492  Streptanthus tortuosus D. E. Anderson, J. P. Smith 1971-6-18 - 1096 Humboldt Horse Mtn. Comment
  UC552237  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1933-7-16 12790 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  HSC57215  Streptanthus tortuosus var. tortuosus Terry Griswold, Marvin Butler 1979-7-12 7277 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  JEPS12877  Symphoricarpos albus var. laevigatus W. L. Jepson 1932-7-28 16434 Humboldt Dyerville Comment
  BLMAR248  Symphoricarpos mollis Jennifer Anthony-Wheeler 1997-7-24 248 Humboldt Lacks Creek, growing beneath conifer canopy 1219 Comment
  CAS-BOT-BC99173  Symphyotrichum chilense Alice Eastwood 1923-8-14 12318 Humboldt Samoa Comment
  HSC90472  Symphyotrichum chilense Jean Hanson 1980-8-28 125 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka. W end of island between dikes. Comment
  CAS-BOT-BC99005  Symphyotrichum eatonii Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  POM51379  Symphyotrichum hendersonii Joseph P. Tracy 1917-9-1 4836 Humboldt Murphy Meadow, Bald Mountain 1067 Comment
  UCD150385  Symphyotrichum lentum William Anderson and H. Mc. 1964-8-6 s.n. Humboldt Little River. Comment
  UC198639  Symphytum asperum Joseph P. Tracy 1916-4-30 4679 Humboldt around Humboldt Bay (Salmon Creek near barnyard); Northern Coast Ranges, , Salmon Creek 30 Comment
  HSC21152  Synthyris reniformis N. J. Cole, D. E. Anderson 1965-4-13 12 Humboldt 2.5 mi. SE of Maple Creek Rd. junction with Bald Mtn. Rd., SE of Korbel Comment
  UC142245  Synthyris reniformis Joseph P. Tracy 1906-4-15 2408 Humboldt 3 mi e Korbel (Bald Mountain); Northern Coast Ranges, Bald Mountain 609 Comment
  UC556334  Synthyris reniformis Mrs. Emanuel Fritz 1935-1 Humboldt between Miranda and Dyerville (along Redwood Highway) Comment
  CAS-BOT-BC376735  Tanacetum bipinnatum J. P. Tracy 1909-7-18 3020 Humboldt Hills of Ocean Beach at Samoa, opp. Eureka Comment
  HSC38341  Tanacetum bipinnatum Peter Sorensen 1976-6-14 Humboldt N Spit of Humboldt Bay, S of Samoa Comment
  HSC6249  Tanacetum bipinnatum R. L. Jarvis 1962-4-29 40 Humboldt Freshwater Lagoon, 1 mi. S of Orick on Hwy. 101 0 Comment
  UC1223071  Tanacetum parthenium Joseph P. Tracy 1946-9-10 17659 Humboldt Tracy's garden, at Eureka Northern Coast Ranges, Eureka 0 Comment
  UC494200  Tanacetum vulgare H. E. and S. T. Parks 1930-9-14 786 Humboldt near Big Lagoon (along highway) Comment
  UC1196938  Taraxia ovata Joseph P. Tracy 1939-4-18 16215 Humboldt w side of river Garberville 152 Comment
  JEPS14164  Tauschia kelloggii Lincoln Constance 1934-6-2 779 Humboldt Bull Cr road to mouth of Bull Creek (and up Bull Cr.); South Fork Eel River, Bull Creek Region Comment
  UC642291  Tauschia kelloggii Joseph P. Tracy 1936-6-10 14933 Humboldt mountain slopes w mouth South Fork of Trinity River; mountain slopes w of mouth South Fork of Trinity River 457 Comment
  SDSU2029  Taxus brevifolia D. F. Howe 1965-8-10 4128 Humboldt 9.8 miles west of willowcreek on #299. 884 Comment
  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
  UC1196166  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1939-5-14 16291 Humboldt Dinsmore's Van Duzen River 746 Comment
  CAS-BOT-BC399769  Thalictrum polycarpum Joseph P. Tracy 1933-5-20 12256 Humboldt Northern Coast Ranges. Mattole Valley 30 Comment
  CHSC10101  Thermopsis macrophylla D. E. Anderson 1965-5-15 36926 Humboldt About 7 miles north of Hoops on Bloody Camp Prairie road. Comment
  RSA259571  Thermopsis macrophylla var. agnina Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-7-15 2000 Humboldt Growing on Serpentine outcrop at Franch Camp, Bald Hills Comment
  RSA75601  Thermopsis robusta Albert M. Vollmer, L. Beane 1951-06 s.n. Humboldt On trail to Blohn's cabin, Bald Mountain, east of Korbel Comment
  RSA728070  Thinopyrum intermedium Gary D. Wallace 1979-6-24 1866 Humboldt Brush Mountain Lookout, SW of the town of Willow Creek. 1216 Comment
  CHSC35608  Thlaspi montanum var. montanum Thomas W. Nelson; James L. Nelson 1980-6-10 5434 A Humboldt Six Rivers National Forest. Along the east side of Red Mountain. 1371 Comment
  UC10967  Thlaspi montanum var. montanum Harley P. Chandler June, 1901 1377 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 182 Comment
  UC552289  Thlaspi montanum var. montanum Joseph P. Tracy 1933-7-11 12690 Humboldt Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  RSA126263  Thuja plicata I. L. Wiggins 1955-7-31 13594 Humboldt Hillside 9 miles east of Arcata along Highway 299 Comment
  SBBG372  Thuja plicata J. W. Howe 1938-3-30 Humboldt Humboldt County [no specific locality] Comment
  HSC99404  Tiarella trifoliata var. unifoliata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 53 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA246667  Tiarella trifoliata var. unifoliata R. F. Thorne, Percy C. Everett 1965-8-5 35140 Humboldt Mt. Chamisal; Below summit. 534 Comment
  UC1198900  Tiarella trifoliata var. unifoliata J. P. Tracy 1901-6-30 1209 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  RSA151820  Tiarella trifoliata var. unifoliata H. K. Sharsmith, Francia Chisaki 1959-8-22 4753 Humboldt At Happy Camp. Just over Trinity County line. 915 Comment
  UC1198898  Tiarella trifoliata var. unifoliata Joseph P. Tracy 9062 Humboldt near McKay Camp South Fork Mountain; Northern Coast Ranges, South Fork Mountain 1676 Comment
  RSA12561  Tofieldia glutinosa subsp. occidentalis Carl B. Wolf 1934-7-2 5878 Humboldt At small lake at Snow Camp (Mtns E of Korbel) 1372 Comment
  CAS-BOT-BC323056  Tracyina rostrata Joseph P. Tracy 1930-6-15 8762 Humboldt Dobbyn Creek 152 Comment
  UC535719  Trichostema lanceolatum Eleanor Armstrong 1934-7-15 1128 Humboldt Richardson Grove 121 Comment
  HSC43157  Trichostema lanceolatum R. Sutherland 1976-8-19 1 .19876 Humboldt 259 Comment
  JEPS63170  Trichostema oblongum Joseph P. Tracy 1927-8-7 8327 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC175495  Trichostema oblongum Joseph P. Tracy 1912-7-31 3945 Humboldt Buck Mountain, near the summit Northern Coast Ranges 1676 Comment
  HSC97554  Trientalis borealis subsp. latifolia Cara Witte 2007-6-1 168 Humboldt Horse Mountain Botanical Area. Along Forest Service Road 6N38. 1382 Comment
  HSC68322  Trientalis latifolia J. P. Smith 1973-5-26 6857 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  SEINET11996902  Trientalis latifolia F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -283 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  UC1197242  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1913-6-20 4225 Humboldt nw slope Buck Mtn (lower foothills); Northern Coast Ranges 762 Comment
  JEPS79995  Trifolium barbigerum var. barbigerum Joseph P. Tracy 1932-5-17 10066 Humboldt Berry's North Coast Ranges, Redwood Creek 274 Comment
  UC1197057  Trifolium bifidum var. decipiens J. P. Tracy 1900-6-5 846 Humboldt immediate vicinity Eureka 0 Comment
  UC1223500  Trifolium bifidum var. decipiens Joseph P. Tracy 1948-6-13 18027 Humboldt near Burr Creek (Larrabee Creek (Harris Trip)); Alder Point Comment
  POM301285  Trifolium dichotomum Joseph P. Tracy 1942-5-16 11555 Humboldt Vicinity of Garberville. 152 Comment
  HSC14995  Trifolium dubium J. W. Johnson 1962-4-18 1246 Humboldt Arcata, Mad River County Park Comment
  UC1223460  Trifolium fragiferum Joseph P. Tracy 1933-8-22 12986 Humboldt 1 mi w Loleta Comment
  SEINET12147891  Trifolium fragiferum J. P. Tracy 1933-1 12986 Humboldt 1 mi W of Loleta Comment
  UCD108946  Trifolium fragiferum P. B. Kennedy 1929-6-14 10326 Humboldt Eureka. Niles Ranch. Comment
  HSC15122  Trifolium fucatum D. B. Bader 1963-4-1 6 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101, along the R.R. tracks Comment
  UC1197024  Trifolium fucatum J. P. Tracy 1901-5-16 1093 Humboldt immediate vicinity Eureka 0 Comment
  SEINET6934968  Trifolium fucatum Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UCD23426  Trifolium incarnatum Eileen Burger 1977-5-8 30 Humboldt Crimson clover, flowers in heads. North oak woodland. West side of Hwy 101, 1/4 mile north of Garberville on frontage road. Comment
  HSC100887  Trifolium longipes Carl C. Marshall Jun 1886 299 Humboldt Trinity Summit. Comment
  HSC102540  Trifolium longipes subsp. elmeri M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1526 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC102067  Trifolium longipes subsp. hansenii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 969 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  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
Read comments
Apr 3 2008
  UC495660  Trifolium macraei Joseph P. Tracy 1927-6-8 8114 Humboldt Trinidad; Northern Coast Ranges, Trinidad 15 Comment
  UC1103448  Trifolium microcephalum Joseph P. Tracy 1929-5-5 8574 Humboldt along Sout Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  UC1197552  Trifolium microcephalum Joseph P. Tracy 1927-6-18 8185 Humboldt betw Petrolia and the ocean Northern Coast Ranges 152 Comment
  UC176603  Trifolium microcephalum Joseph P. Tracy 1913-6-22 4268 Humboldt opposite Buck Mtn (Dinsmore's Ranch in valley of Van Duzen River); Northern Coast Ranges 762 Comment
  UC1197505  Trifolium microdon Joseph P. Tracy 1932-5-16 10109 Humboldt near Samoa; Northern Coast Ranges, Humboldt Bay 6 Comment
  UC160979  Trifolium microdon Joseph P. Tracy 1908-6 2781 Humboldt nw slope Buck Mtn; Northern Coast Ranges 914 Comment
  UC1103444  Trifolium oliganthum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3609 Humboldt near Hydesville; Northern Coast Region Comment
  SD90164  Trifolium repens Benjamin C. Stone 1952-6-21 117 Humboldt Stone Lagoon on Hwy 101 14 Comment
  UC33491  Trifolium repens Chesnut and Drew 1888-7-11 Humboldt Eureka Comment
  HSC48608  Trifolium repens Mark Flippo 1978-4-18 11 Humboldt Mckinleyville, Bella Vista Rd. Comment
  HSC45107  Trifolium subterraneum R. Sutherland 1978-5-12 2 .12578 Humboldt Mckee Flat 288 Comment
  UC1197564  Trifolium variegatum var. melananthum Joseph P. Tracy 1915-6-6 4643 Humboldt Steven Hill place Northern Coast Region (Eureka) 0 Comment
  RSA168845  Trifolium variegatum var. variegatum Joseph P. Tracy 1935-5-24 13815 Humboldt Eureka. Comment
  UC1223536  Trifolium variegatum var. variegatum Joseph P. Tracy 1935-5-24 13815 Humboldt Lentell Addition Eureka Comment
  SD53239  Trifolium virescens Darley F. Howe 1962-5-22 3308 Humboldt 0.7 mile east of Orick on Bald Mt. Road. 395 Comment
  SEINET6935462  Trifolium willdenovii Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  UCD109888  Trifolium willdenovii Tofsrud 1948-1 s.n. Humboldt location unknown. Comment
  CHSC68785  Trifolium wormskioldii Vernon Oswald 1997-6-5 8540 Humboldt Samoa Dunes Recreation Area at the south tip of the North Spit of Humboldt Bay. Along the road to the jetty. 6 Comment
  JEPS66096  Trifolium wormskioldii Joseph P. Tracy 1923-6-17 6273 Humboldt Big Lagoon Northern Coast Ranges 6 Comment
  UC160991  Trifolium wormskioldii Joseph P. Tracy 1911-6-25 3246 Humboldt Eureka Northern Coast Region 0 Comment
  UC168972  Trifolium wormskioldii Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3590 Humboldt near Hydesville Northern Coast Ranges 30 Comment
  HSC90425  Trifolium wormskioldii Jean Hanson 1980-6-22 94 Humboldt Indian (Gunther) Island. In Humboldt Bay, city of Eureka. W end of Island. Comment
  UC1222703  Trifolium wormskioldii Joseph P. Tracy 1938-7-12 16056 Humboldt near Field's Landing (w end of Table Bluff) 548 Comment
  CAS-BOT-BC451809  Triglochin maritima Carl B. Wolf 1927-8-22 784 Humboldt Big Lagoon Comment
  HSC15685  Trillium albidum D. E. Anderson 1965-5-22 3729 Humboldt Hunt Ranch, 3-4 mi. N of Bridgeville. Comment
  CHSC23038  Trillium ovatum E. K. Daniels 1964-4-18 33 Humboldt Prairie Creek State Park; 1 mi from Pacific Ocean beach on trail towards Park Headquarters. 30 Comment
  HSC102558  Trillium ovatum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1546 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC32140  Trillium ovatum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5608 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC83461  Trillium ovatum R. N. Raynor 1935-3-2 Humboldt Fort Seward Comment
  RSA183586  Trillium ovatum R. D. Zortman 1963-3-16 14 Humboldt 5 miles northeast of Arcata; south of the Mad River, off Warren Creek Road. 91 Comment
  UC1197814  Trillium ovatum unknown 1943-4-2 Humboldt Eureka Comment
  CAS-BOT-BC133392  Trillium ovatum R. N. Raynor 1934-4-1 s.n. Humboldt Above Fort Seward Comment
  HSC34647  Trillium ovatum Thomas Anthony 1975-4-7 1 Humboldt 0.5 mi. N of Myers Flat on Avenue of the Giants Comment
  SBBG1084  Trillium ovatum H. and M. Dearing 1933-5-15 269 Humboldt Humboldt County [no specific locality] Comment
  UCD18653  Trillium ovatum Roman Gankin 1956-3-17 105 Humboldt off US Hwy 101. Comment
  HSC99366  Trillium ovatum subsp. ovatum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 15 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC198870  Triodanis biflora Chesnut and Drew 1888-7-9 Humboldt Kneeland Comment
  UC34956  Triodanis biflora Chesnut and Drew 1888-7-9 Humboldt near Campbell's Comment
  SEINET10459929  Triodanis perfoliata Unknown Blasdale 5888 B Humboldt KLAMATH RIVER 335 Comment
  UC146241  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1906-6-10 2477 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1198035  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1918-5-5 4926 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay; Northern Coast Region, Ocean Beach at Humboldt Bay Comment
  UC1198037  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1901-4-14 1020 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay; Northern Coast Region, Humboldt Bay Comment
  JEPS26218  Triphysaria eriantha subsp. rosea H. E. Parks and Joseph P. Tracy 1927-4-24 7946 Humboldt Bucksport 6 Comment
  UC1222437  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1942-5-29 17088 Humboldt Eureka 6 Comment
  CAS-BOT-BC199624  Trisetum canescens Joseph P. Tracy 1935-7-25 14235 Humboldt Trinity Summit, open places at McKay Prairie 1584 Comment
  CAS-BOT-BC199625  Trisetum canescens David D. Keck 1948-7-2 6006 Humboldt E. side of Rocky Ridge, E. of Berry's Summit, 4.1 miles W. of Willow Creek, near Boundary of Six Rivers National Forest 457 Comment
  RSA10081  Trisetum canescens Joseph P. Tracy 1926-6-6 7557 Humboldt Northern Coast Ranges, Hoopa Mountain, near summit on road west from Hoopa to Bair's. 1067 Comment
  UC212882  Trisetum canescens Joseph P. Tracy 1919-5-31 5157 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  UC526692  Trisetum canescens Joseph P. Tracy 1932-7-16 10614 Humboldt Corral Prairie; Klamath Mountains 1524 Comment
  HSC38429  Trisetum cernuum D. E. Anderson, J. P. Smith 1971-6-18 - 1056 Humboldt 1 mi. W of Lord Ellis Summit Comment
  UC1541533  Trisetum cernuum Harold E. Parks 1934-5-16 4935 Humboldt Carlotta; near station 15 Comment
  UCD93899  Trisetum cernuum Harley P. Chandler 1901-5-1 1176 Humboldt Humboldt Bay. 30 Comment
  HSC98957  Triteleia hyacinthina Cara Witte 2008-7-28 952 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1565 Comment
  HSC2994  Triteleia hyacinthina J. Wendell Howe 1934-7-24 1316 Humboldt Horse Mtn., Cold Spring Comment
  HSC91592  Triteleia laxa E. Mackey 1986-6-16 Humboldt Patrick's Point State Park, near Ceremonial Rock Comment
  SEINET200771  Triteleia laxa Joseph P. Tracy 1947-6-8 17704 Humboldt Carlotta; Open flat by old Strong's District School House 5 miles east of town 46 Comment
  HSC98682  Triteleia laxa Cara Witte 2008-7-10 853 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  RSA167426  Triteleia laxa Joseph P. Tracy 1950-6-8 18755 Humboldt At Davis Creek Mouth, south of Cape Mendocino 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
  RSA1092  Tsuga heterophylla E. R. Johnson 1928-8-26 1151 Humboldt On Arcata-Hoopa Road. Comment
  JEPS65676  Ulex europaeus Joseph P. Tracy 1923-11-24 6594 Humboldt Northern Coast Ranges, Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  HSC21678  Urtica dioica subsp. gracilis Francis Winter 1960-4-19 Humboldt Samoa peninsula 5 miles W of Arcata. Comment
  POM87676  Urtica dioica subsp. gracilis L. R. Abrams, R. C. Bacigalupi 1922-6-25 8278 Humboldt Big Lagoon, south of Orick. Comment
  UC1222618  Urtica dioica subsp. holosericea Joseph P. Tracy 1950-8-8 19276 Humboldt 1 mi w of lower end of Croghan Hole (Trinity Summit Trip) Comment
  UC32648  Vaccinium Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5651 Humboldt Hoopa Mt. Comment
  CAS-BOT-BC193963  Vaccinium cespitosum Doris Kildale 1931-5-10 10581 Humboldt Snow Camp Comment
  CAS-BOT-BC193964  Vaccinium cespitosum Harley P. Chandler 1901-5-1 1181 Humboldt Humboldt Bay 30 Comment
  JEPS58733  Vaccinium cespitosum Harley P. Chandler May 1901 1181 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC32652  Vaccinium cespitosum E. Ethel Tracy 1901-9-5 1279 Humboldt Eureka Comment
  HSC7908  Vaccinium ovatum J. Pursell 1964-10-17 10178 Humboldt Road to Box Camp in Hoopa Valley 762 Comment
  HSC90226  Vaccinium ovatum L. Watson, J. Meninga Mar 1991 20 Humboldt Near Manilla, Mad River Slough and Dunes N of parking lot, W of trail Comment
  CAS-BOT-BC199412  Vaccinium parvifolium E. K. Balls 1949-7-11 13973 Humboldt 35 miles west of Willow Creek on Hwy 299 to Arcata 152 Comment
  JEPS66689  Vaccinium parvifolium Lincoln Constance 1934-5-31 759 Humboldt Bull Creek Region: Bull Creek flat, along Bull Creek from W boundary of Park to Grasshopper Peak (Squaw Creek) rd. N side of creek, South Fork Eel River Comment
  OBI14438  Vaccinium parvifolium Joseph P. Tracy 1943-3-14 17410 Humboldt Vicinity of Carlotta Comment
  UC22217  Vaccinium parvifolium Harley P. Chandler May 1901 1182 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UCD118162  Vaccinium parvifolium T. I. Storer 1931-7-1 2222 Humboldt Coast. Comment
  HSC7928  Vaccinium scoparium D. E. Anderson 1965-6-1 3758 Humboldt Horse Mtn., near ski lodge 1433 Comment
  HSC102134  Valeriana sitchensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1038 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC1239591  Valeriana sitchensis subsp. scouleri Joseph P. Tracy 1924-8-10 6802 Humboldt Van Duzen River bank, near Strongs Station; Van Duzen River 60 Comment
  HSC56160  Valeriana sitchensis subsp. sitchensis G. L. Clifton, Griswold 1979-8-1 12035 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC3380  Vancouveria hexandra J. F. Knezevich 1968-5-21 448 Humboldt 20 mi. E of Arcata on Hwy. 299 at Lord Ellis Summit Comment
  UC1196350  Vancouveria hexandra J. P. Tracy 1901-6-10 1135 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  HSC37695  Vancouveria hexandra J. D. Ackerman 1974-4-26 181 Humboldt .3 mi. up Jolly Giant Cr. from HSU, Arcata. Comment
  HSC49387  Vancouveria hexandra R. York 1979-4-9 213 Humboldt Behind Humboldt State University Comment
  HSC69623  Vancouveria hexandra R. Kalal 1979-5-20 68 Humboldt Fickle Hill Rd., 1 mi. E of 11th St. 189 Comment
  SD90209  Vancouveria hexandra Benjamin C. Stone Jul 1952 114 Humboldt Near Founders Tree, Humboldt Redwoods State Park 149 Comment
  CAS-BOT-BC76096  Vancouveria planipetala Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta. Comment
  HSC76279  Vancouveria planipetala Teresa Prendusi 1981-7-7 123 Humboldt Near Slate Creek Butte. 1158 Comment
  RSA120717  Vancouveria planipetala S. S. Tillett 1956-7-6 613 Humboldt Along Bar Shanty Road, 9 mi. from Orleans. 945 Comment
  RSA259548  Vancouveria planipetala A. Montalvo, J. D. Ackerman 1974-7-17 377 Humboldt Grizzly Creek State Park, along Hwy. 36, between Carlotta and Bridgeville. Comment
  UC1196348  Vancouveria planipetala Joseph P. Tracy 1919-5-30 5171 Humboldt near Willow Creek (hill slopes at West Side of Trinity River); Northern Coast Ranges, w side of Trinity River, Willow Creek 152 Comment
  UC1198213  Veratrum californicum var. californicum Joseph P. Tracy 1933-7-25 12862 Humboldt in wet meadow Grouse Mountain 1524 Comment
  UC1173646  Veratrum insolitum Joseph P. Tracy 1936-8-8 15127 Humboldt on Ridge 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  JEPS11174  Verbascum blattaria Joseph P. Tracy 1937-6-26 15366 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  HSC100694  Verbena prostrata Carl C. Marshall Jul 1887 327 Humboldt Dry interior valleys. Comment
  HSC78977  Veronica peregrina subsp. xalapensis L. P. Janeway, K. Berg, Rudy Becking 1984-4-11 720 Humboldt N Spit of Humboldt Bay, BLM lands ('Coast Guard Reservation') 3 Comment
  HSC21216  Veronica persica Richard Steele 1962-3-18 9 Humboldt 0.25 mi. W of HSC campus 15 Comment
  HSC61645  Veronica serpyllifolia subsp. humifusa Ruby Van Deventer 1959-6-20 Humboldt Humboldt-Del Norte county line, Onion Lake 1220 Comment
  POM283766  Veronica serpyllifolia var. humifusa Lyman D. Benson 1929-7-14 1799 Humboldt Weott Ranger Station, South Fork Eel River. Comment
  UC1197465  Vicia americana var. americana Joseph P. Tracy 1911-7-1 3277 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC71810  Vicia americana var. americana Mrs. M. H. Manning May 1903 133 Humboldt Fort Bidwell Comment
  UC495714  Vicia hirsuta H. E. Parks and Joseph P. Tracy 1931-5-23 9452 Humboldt vicinity Trinidad; Northern Coast Region 60 Comment
  OBI12617  Vicia hirsuta Joseph P. Tracy 2016-5-31 4689 Humboldt Stitz Crk. Along Eel River from S Fork to Scotia Comment
  RSA273329  Vicia sativa Robert M. Specht 1975-5-31 8145 Humboldt Along Samoa Peninsula adjacent to Redwood Workshop Area. Comment
  JEPS76829  Vicia sativa subsp. nigra L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1978-5-27 4807 Humboldt about 1.2 mi n Eureka bridge (Samoa peninsula) Comment
  HSC3232  Vinca major S. J. Hawks 1965-4-6 85 Humboldt Luffenholtz Beach Comment
  CAS-BOT-BC263952  Viola adunca L. B. Kildale 1926-3-30 1537 Humboldt Big Lagoon Comment
  HSC21774  Viola adunca K. P. St. John 1965-4-3 10 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  UC502938  Viola bakeri Joseph P. Tracy 1932-7-15 10581 Humboldt ridges e of Corral Prairie; Klamath Mountains, Trinity Summit 1828 Comment
  UC1761601  Viola glabella H. E. Parks 1924-8-9 2447 Humboldt Carlotta Comment
  UC183623  Viola glabella Joseph P. Tracy 1913-3-9 4018 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CAS-BOT-BC536496  Viola glabella A. M. Vollmer; L. Beane 1951-6-8 134 Humboldt Grizzly Camp, State Hwy 36 Comment
  HSC21788  Viola glabella D. K. Smith 1968-4-8 13 Humboldt On West End Rd., ca. 3 mi. from U.S. 299 Comment
  HSC97481  Viola glabella C. Witte 2007-5-18 36 Humboldt Along National Forest 1. Approximately 1 mile north of intersection with 5N09. 1456 Comment
  RSA218475  Viola glabella N. H. Russell 1960-6-9 60 -24 Humboldt Near Weott and Williams Grove, by Hwy 101. Comment
  HSC33056  Viola hallii Thomas W. Nelson 1974-5-7 1234 Humboldt Beside airstrip at Kneeland Prairie Comment
  HSC44426  Viola hallii Brad Klipfel 1975-5-30 646 Humboldt Horse Mtn. Comment
  RSA46691  Viola hallii Doris K. Kildale 1938-6-5 15398 Humboldt Horse Mountain Comment
  UC1198441  Viola hallii Joseph P. Tracy 1933-7-11 12664 Humboldt Horse Mountain 1432 Comment
  HSC101993  Viola macloskeyi M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 892 Humboldt Patterson Meadows 1555 Comment
  UC1761724  Viola macloskeyi W. K. Parks Jul 1933 6239 Humboldt South Fork Mt. Comment
  HSC94129  Viola odorata Gordon Leppig, Sylvia Leppig 2000-12-23 1525 Humboldt SW corner of 10th and I St. 6 Comment
  UC30717  Viola praemorsa subsp. linguifolia Harley P. Chandler June, 1901 1288 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 1097 Comment
  HSC90070  Viola praemorsa subsp. praemorsa C. Baldwin, A. Hiss, P. Reynolds 1990-4-27 56 Humboldt Titlow Rd., 0.5 mi. S of Hwy. 299; 50 yds. W of Titlow Rd. 854 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
  RSA80574  Viola praemorsa subsp. praemorsa Milo S. Baker 1935-4-18 8059 Humboldt Near headwaters of S Fork of Yager, ca 2 mi W of Bridgeville. Comment
  HSC40552  Viola purpurea subsp. purpurea Thomas W. Nelson, Jane P. Nelson 1976-5-23 2521 Humboldt SW facing slopes 1666 Comment
  HSC67177  Viola purpurea subsp. purpurea Thomas W. Nelson, James Nelson 1980-6-10 5428 Humboldt Along NE side of Red Mtn. 1433 Comment
  HSC100698  Viola sarmentosa Carl C. Marshall Mar 1886 145 Humboldt Throughout Humboldt County. Comment
  HSC32889  Viola sheltonii Thomas W. Nelson 1973-5-30 975 Humboldt Humboldt/Trinity Co. line, Mt. Lassic 1790 Comment
  JEPS80009  Viola sheltonii Joseph P. Tracy 1933-7-16 12769 Humboldt near McKay Camp (South Fork Mountain); South Fork Mountain 1676 Comment
  UC169887  Vitis californica P. E. Goddard 1901-1 13 Humboldt Hupa Valley Comment
  HSC9838  Vulpia bromoides J. W. Johnson 1962-4-29 1303 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata. Comment
  RSA10149  Vulpia bromoides Joseph P. Tracy 1925-5-17 6980 Humboldt Trinity River Valley, near the South Fork. 183 Comment
  CAS-BOT-BC183940  Vulpia microstachys var. microstachys Doris Kildale Gillespie 1931-6-7 10605 Humboldt South Fork Mt. Black Lookout 1726 Comment
  UC1145199  Vulpia microstachys var. microstachys Joseph P. Tracy 1936-6-17 1496 1/2 Humboldt nw slope Buck Mountain (Burr Valley); Burr Valley 1066 Comment
  UC525672  Vulpia microstachys var. pauciflora Joseph P. Tracy 1926-5-2 7441 Humboldt near The South Fork (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC73581  Vulpia myuros Gail Newton 1980-7-14 1482 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC89911  Vulpia myuros Leonel Arguello 1989-8-20 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, alongside N Dune loop trail. Comment
  RSA244994  Vulpia myuros D. E. Anderson 1970-5-21 5078 Humboldt Scotia Bluffs Comment
  HSC62987  Whipplea modesta David Wheeler 1979-4-21 77 Humboldt 4 mi. past Maple Creek bridge over Mad River on the way to Eureka, hills above Butler Valley Comment
  SDSU911  Whipplea modesta D. F. Howe 1961-8-2 3121 Humboldt 7.7 Miles east of Orick on Bald Mtn. Road. 610 Comment
  HSC70753  Woodwardia fimbriata R. York 1980-5-17 530 Humboldt Near Le Perron Peak 1066 Comment
  CAS-BOT-BC77813  Woodwardia fimbriata Doris K. Kildale 1926-8-8 2451 Humboldt Bull Creek Flat Comment
  CAS-BOT-BC382930  Wyethia angustifolia Carl B. Wolf 1937-8-13 9222 Humboldt North Coast Range, 8 mi. E. of Hoopa Valley on new road towards Trinity Summit 1219 Comment
  UC128618  Wyethia angustifolia P. E. Goddard Jul 1910 Humboldt Hupa Valley Comment
  HSC82417  Wyethia angustifolia Thomas W. Nelson 1979-7-11 5038 Humboldt Along trail from Grogan's Hole to North Trinity Mtn., from Grogan's Hole to summit. Comment
  HSC41257  Xerophyllum tenax Brad Klipfel 1974-6-25 447 Humboldt Horse Mtn. Comment
  UC1173649  Xerophyllum tenax Joseph P. Tracy 1937-8-15 15665 Humboldt French Camp 1066 Comment
  UC1198221  Xerophyllum tenax Joseph P. Tracy 1933-7-11 12671 Humboldt Horse Mountain 1432 Comment
  HSC43850  Zeltnera muehlenbergii Maralyn O'Meara 1974-7-17 557 Humboldt Kneeland Comment
  HSC39225  Zigadenus micranthus D. E. Anderson, J. P. Smith 1971-7-6 1288 Humboldt Horse Mtn. Comment
  CDA867  Zostera japonica Gordon Leppig 2002-7-8 1784 Humboldt Indian Island, SW shore, mid-intertidal zone, +1.2 MLW. 0 Comment



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