Search Results — 2000 specimen records retrieved (1371 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)
 Please cite data retrieved from this page: Data provided by the participants of the Consortium of California Herbaria (ucjeps.berkeley.edu/cch_archive/).
 Records are made available under the CCH Data Use Terms.
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A yellow cell in the column headed "?", for records with coordinates, indicates a discrepancy with respect to range as specified in the eFlora. Read more ...
? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC55164  Abies concolor Gilbert Muth 1979-8-1 12146 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC55196  Abies concolor G. L. Clifton, Griswold 1979-8-2 12292 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  OBI36537  Abies concolor David J. Keil 1983-7-2 17317 Humboldt Ca. 4 mi SE ofSR 299 along Titlow Hill rd below Horse Mt summit rd Comment
  HSC49356  Abies grandis Thomas W. Nelson, Jane P. Nelson 1979-9-10 5064 Humboldt Along old logging road S of Lundbar Hills. Bulk Collection # 187 49 Comment
  UC1134161  Abies grandis G. T. Nordstrom 1937-7-1 1420 Humboldt 2.5 mi ne Orick; Orick Quad. 152 Comment
  HSC73024  Abies procera Gail Newton 1980-8-10 1987 Humboldt Near Blake Mtn. 1798 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
  SEINET11941806  Abronia latifolia K. S. Erdman 1970-1 4811 Humboldt Gold Bluffs Beach about 3 mi NW of Berry Glen on US 101, Prairie Creek State Park Comment
  CAS-BOT-BC436976  Acaena novae-zelandiae T. C. Fuller 1966-10-4 15236 Humboldt 1 mile northwest of Fieldbrook Comment
  CDA40641  Acaena novae-zelandiae G. D. Barbe, E. C. Whitney & Warren Simas 1978-7-26 2413 Humboldt East of Arcata airport between Fieldbrook and Crannell; Vic Guynup property. 0 Comment
  HSC2785  Acer circinatum D. E. Anderson 1965-5-8 3627 Humboldt 0.6 mi. W of bridge over N Fork of the Mad River along Hwy. 299 Comment
  UC1585407  Acer circinatum R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 UCBG 30 Humboldt sw of Hoopa (on Bair Rd.); Pine Ridge Summit, sw of Hoopa 990 Comment
  UC668176  Acer circinatum Joseph P. Tracy 1935-5-26 13911 Humboldt Lawrence Creek at crossing of the Kneeland Road; Lawrence Creek 457 Comment
  UC668175  Acer glabrum var. glabrum Joseph P. Tracy 1933-7-11 12707 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  CAS-BOT-BC331588  Acer macrophyllum Doris K. Kildale; L. B. Kildale 1930-4-13 9575 Humboldt Bridgeville 289 Comment
  UC1199019  Acer macrophyllum Joseph P. Tracy 1933-4-2 10955 Humboldt Willow Creek Trinity River Valley 152 Comment
  SD17523  Achillea millefolium Edith A. Purer 1932-7-27 4133 Humboldt Near Arcata Comment
  HSC4547  Achillea millefolium H. E. Parks, S. T. Parks Aug 1943 24246 Humboldt Egg Point, Trinidad 122 Comment
  JEPS37083  Achillea millefolium Joseph P. Tracy 1933-5-20 12230 Humboldt south of point Cape Mendocino 3 Comment
  UC472295  Achlys californica Mrs. M. H. Manning 1901-4 32 Humboldt near Hupa Comment
  UC1196355  Achlys californica Joseph P. Tracy 1932-7-13 10491 Humboldt woods near Corral Prairie Klamath Mts., Trinity Summit 1524 Comment
  UC275314  Achlys californica Joseph P. Tracy 1924-5-4 6673 Humboldt Grizzly Creek on Van Duzen R. Van Duzen R., Grizzly Creek 91 Comment
  HSC73179  Achlys triphylla M. A. Baker 1980-5-18 1295 Humboldt Near Black Mtn. 1006 Comment
  UC30137  Achlys triphylla subsp. triphylla W. C. Blasdale 1896-6-6 Humboldt Fitzgerald's Comment
  CAS-BOT-BC210653  Achnatherum lemmonii Joseph P. Tracy 1928-6-24 8466 Humboldt Valley of South Yager Creek 762 Comment
  UC1222925  Achyrachaena mollis Joseph P. Tracy 1948-6-13 18054 Humboldt nearby grassy slopes Harris Comment
  HSC36791  Acmispon nevadensis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2050 Humboldt Beside FS Rd. 2S08 to Pine Mtn. Comment
  HSC48684  Aconitum columbianum subsp. columbianum Brad Klipfel 1973-7-31 238 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC56210  Aconitum columbianum subsp. viviparum G. L. Clifton, Griswold 1979-8-2 12215 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC55084  Aconogonon davisiae G. L. Clifton, Griswold 1979-7-31 11748 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  JEPS60374  Actaea rubra W. L. Jepson 1902-7-16 2055 Humboldt Trinity Summit 2133 Comment
  JEPS33912  Adenocaulon bicolor W. L. Jepson 1932-7-27 16428 Humboldt Bull Creek 106 Comment
  SD73189  Adenocaulon bicolor Darley F. Howe 1969-6-4 Humboldt 14.6 miles east of Alton on #36 89 Comment
  SEINET10473553  Adenocaulon bicolor Mary Merello 1993-6-19 Merello 660 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  UC164785  Adenocaulon bicolor J. P. Tracy 1901-6-2 1119 Humboldt immediate vicinity Eureka 0 Comment
  UC164786  Adenocaulon bicolor J. P. Tracy 1900-7-22 904 Humboldt immediate vicinity Eureka 0 Comment
  UC492186  Adenostoma fasciculatum W. L. Jepson and J. P. Tracy 1932-8-7 10337 Humboldt along rd. between Harris and Chamise Mt. (at point 3 mi. n. of s. boundary of Humboldt Co.); North Coast Ranges 762 Comment
Read comments Oct 24 2018
  CAS-BOT-BC62293  Adiantum aleuticum Carl D. Duncan 1920-9-22 s.n. Humboldt Trinity River, Hoopa Valley Comment
  HSC956  Adiantum aleuticum H. E. Parks, S. T. Parks May 1930 749 Humboldt Along Van Duzen River Comment
  JEPS336  Adiantum aleuticum W. L. Jepson 1932-7-26 16412 Humboldt Bull Creek Comment
  HSC960  Adiantum jordanii D. E. Anderson 1965-5-15 3701 Humboldt About 2 mi. NW of Hoopa on Bald Hills Rd. Comment
  CAS-BOT-BC202608  Aesculus californica Joseph P. Tracy 1941-6-15 16914 Humboldt Near Honeydew bridge. Mattole Valley 152 Comment
  UC249587  Aesculus californica Joseph P. Tracy 1921-10-22 5978 Humboldt Bridgeville; Northern Coast Ranges 304 Comment
  UC668172  Aesculus californica Joseph P. Tracy 1937-6-20 15357 Humboldt 10 mi upstream from the mouth Bear River 152 Comment
  HSC40853  Agastache urticifolia Thomas W. Nelson 1976-7-9 2996 Humboldt Ridge S of E peak of Mt. Lassic group (Signal Peak) 1677 Comment
  CAS-BOT-BC30383  Ageratina occidentalis Henry M. Pollard 1947-8-21 s.n. Humboldt South River Road between Orleans and Ferrian Ranch Comment
  CHSC10150  Agoseris grandiflora J. W. Johnson 1961-8-17 1004 Humboldt Arcata. Dune field, W. M. Lanphere Farm, Samoa Peninsula. Comment
  HSC12532  Agoseris grandiflora Jos. Burtt Davy 1899-6-21 5727 Humboldt Hoopa Valley Comment
  HSC4594  Agoseris grandiflora D. E. Anderson 1962-7-14 2257 Humboldt Along Barry Ridge Rd. Comment
  UC1222927  Agoseris grandiflora Joseph P. Tracy 1950-6-15 18798 Humboldt 7 mi n, at Jenk's Ranch Harris; Mail Ridge Comment
  UC1222942  Agoseris grandiflora Joseph P. Tracy 1948-8-8 18093 Humboldt Iaqua School House Iaqua Comment
  UCD128596  Agoseris grandiflora Joseph P. Tracy 1949-6-25 18344 Humboldt 1 mile west of Mud Springs (to Box Camp on west slope of Trinity Summit). Comment
  UC164824  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1911-7-4 3258 Humboldt at w side of, on hill slopes, near Willow Creek Trinity River; Northern Coast Ranges, Willow Creek 243 Comment
  POM225522  Agoseris grandiflora var. leptophylla P. A. Munz 1936-8-13 14383 Humboldt 10 miles west of Willow Creek Comment
  HSC82039  Agoseris heterophylla Thomas W. Nelson, James Nelson 1980-6-10 5408 Humboldt Along Swayback Ridge 4-wheel drive road, 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  POM161907  Agoseris heterophylla Joseph P. Tracy 1921-6-12 5816 Humboldt Kneeland Prairie 762 Comment
  HSC98543  Agoseris heterophylla Cara Witte 2008-6-7 684 Humboldt Along National Forest 1. Approximately 4 miles south of intersection National Forest 1 and 5N04. 1441 Comment
  JEPS79803  Agoseris heterophylla Joseph P. Tracy 1933-5-30 12417 Humboldt (near Garberville) Redway 152 Comment
  SEINET6998444  Agoseris heterophylla Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UC1199484  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1927-5-14 8030 C Humboldt at Willow Creek; Trinity River Valley 152 Comment
  UC1198339  Agrostemma githago Joseph P. Tracy 1899-4-23 310 Humboldt Eureka; Northern Coast Region 0 Comment
  UC1103369  Agrostis alba J. P. Tracy 1900-9-2 934 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC127522  Agrostis capillaris L. R. Abrams 1916-7-18 6139 Humboldt At Trinidad. Comment
  CAS-BOT-BC127278  Agrostis exarata Joseph P. Tracy 1902-7-4 1757 Humboldt Northern Coast Region. Eureka. 60 Comment
  CAS-BOT-BC127291  Agrostis exarata Palmer Stockwell 1934-7-13 64 Humboldt Clam Beach. Comment
  CAS-BOT-BC127296  Agrostis exarata Palmer Stockwell 1934-7-13 64 Humboldt Clam Beach. Comment
  HSC75270  Agrostis exarata J. O. Sawyer, M. A. Ericksen 1980-8-18 4058 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  RSA129586  Agrostis exarata H. S. Yates 1936-6-16 5664 Humboldt 1 mile S.W. of Samoa. Comment
  UC1145056  Agrostis exarata Joseph P. Tracy 1947-6-28 17749 Humboldt Larrabee Valley 731 Comment
  UC1145061  Agrostis exarata Harold E. Parks and Joseph P. Tracy 1941-7-5 11489 Humboldt Coon Creek, east side of Trinity River below Willow Cr. 152 Comment
  UC191415  Agrostis exarata Joseph P. Tracy 1902-7-4 1757 Humboldt Eureka Northern Coast Region 0 Comment
  UC556417  Agrostis exarata Palmer Stockwell 1934-7-13 64 Humboldt Clam Beach Comment
  UCD52368  Agrostis exarata A. H. Murphy 1948-10-19 s.n. Humboldt Fred Fearriams Ranch, near Alderpoint. Comment
  SEINET11673856  Agrostis exarata P. H. Chandler 1901-1 1525 Humboldt Klamath River, North Coast Ranges 427 Comment
  HSC74891  Agrostis hallii J. P. Smith 1977-7-3 9234 Humboldt On Forest Service Road 13N01 to Fish Lake, 3.5 mi. from its junction with Highway 36 488 Comment
  BLMAR707  Agrostis hallii Jennifer Wheeler 2013-10-25 707 Humboldt Lacks Creek, Upper Round Prairie 731 Comment
  CHSC114091  Agrostis idahoensis Jennifer Buck; Danielle Roach 2009-8-19 SFM 06 C Humboldt Kerlin Fen, South Fork Mountain; UTM Zone 10N, 453899E, 4494304N. 1633 Comment
  UC1103384  Agrostis microphylla J. P. Tracy 1900-7-22 898 1/2 Humboldt vicinity Eureka; vicinity Eureka 0 Comment
  UCD53038  Agrostis microphylla Joseph P. Tracy 1938-7-5 16006 Humboldt Carlotta, by old Strong's District School House, 5 miles east of town. 60 Comment
  UC212862  Agrostis pallens Joseph P. Tracy 1919-9-18 5232 Humboldt Trinity Summit Northern Coast Ranges 1889 Comment
  CAS-BOT-BC138632  Agrostis stolonifera Joseph P. Tracy 1927-7-16 8253 Humboldt Northern Coast Ranges. Around Humboldt Bay. Mouth of Elk River. 6 Comment
  CHSC36406  Agrostis stolonifera Donald M. Burk 1981-7-25 54 Humboldt At junction of Rd. 5N10 and Rd. 5N10C. 1249 Comment
  UC526873  Agrostis thurberiana Joseph P. Tracy Jul 16 1930-Jul 19 1930 8989 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC1103299  Aira caryophyllea Joseph P. Tracy 1919-5-31 5142 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  CAS-BOT-BC138335  Aira caryophyllea var. caryophyllea Joseph P. Tracy 1933-6-13 12581 Humboldt Hoopa Mountain. Near summit on road from Hoopa westward to Bair's. 1066 Comment
  SBBG88771  Alisma triviale A. Keedy 1988-9-18 9 Humboldt fresh water pond A, Arcata Salt Marsh Project, Humboldt Bay Comment
  HSC2883  Alisma triviale Paul Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  SEINET182670  Allium amplectens Unknown 1936-6-24 645 Humboldt At point where the road from Bridgeville to Dinsmore crosses the Little Van Duzen River, 710 Comment
  UC1198201  Allium falcifolium Joseph P. Tracy 1933-7-25 12891 Humboldt Grouse Mountain 1524 Comment
  CAS-BOT-BC135845  Allium hoffmanii Thomas W. Nelson; James L. Nelson 1980-6-27 5947 Humboldt Humboldt-Trinity County line. Along low ridge northeast of small vernal pond at north base of Red Lassic - Six Rivers National Forest 1676 Comment
  HSC67187  Allium hoffmanii Thomas W. Nelson, James Nelson 1980-6-10 5423 Humboldt Along NE side of Red Mtn. 1433 Comment
  JEPS81076  Allium hoffmanii Thomas W. Nelson and Jane P. Nelson 1980-6-27 5951 Humboldt saddle between two peak e Mount Lassic (non-numbered section e of Sec. 36); Six Rivers National Forest, Blocksburg Quad. 1767 Comment
  HSC12536  Allium membranaceum J. Allen DeCou 1899-6-22 263 Humboldt Trail to Trinity Summit Comment
  UC1562908  Allium peninsulare Barbara Ertter with Thomas J. Delendick 1987-5-16 6920 Humboldt ca. 15 air mi e Arcata (ridge below vista, w of Berry Summit on Hwy. 299); Vista Point 914 Comment
  HSC76440  Allium siskiyouense Denis Kearns 1981-6-24 27 Humboldt Near Cedar Camp 1219 Comment
  HSC79055  Allium siskiyouense D. K. Imper 1984-5-17 Humboldt Sims Mountain 1280 Comment
  CAS-BOT-BC476628  Allium unifolium D E Breedlove 1961-7-3 642 Humboldt In dense grove of Sequoia sempervirens, along Eel River. 7.4 miles north of Phillipsville 243 Comment
  UCD138614  Allium unifolium K. Esau 1934-5-7 s.n. Humboldt Above Fort Seward. 457 Comment
  HSC97998  Allium validum Cara Witte 2007-7-11 500 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  UC162707  Alnus rhombifolia Joseph P. Tracy 1911-7-4 3296 Humboldt Willow Creek Northern Coast Ranges (near mouth (creek is a tributary of Trinity River)) 182 Comment
  CAS-BOT-BC169533  Alnus rubra Doris K. Kildale 1926-6-28 2181 Humboldt Big Lagoon Comment
  HSC3435  Alnus rubra Francis Winter 1960-3-26 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  HSC91602  Alnus rubra E. Mackey 1986-10-24 Humboldt Patrick's Point State Park, in front of Ceremonial Rock Comment
  POM212075  Alnus rubra C. B. Wolf 1930-10-26 1967 Humboldt south edge of Big Lagoon, near the Redwood highway bridge. 3 Comment
  POM160842  Alnus viridis subsp. sinuata Joseph P. Tracy 1919-9-18 5241 Humboldt Trinity Summit. 1829 Comment
  UC1225944  Alnus viridis subsp. sinuata Joseph P. Tracy 1947-8-24 17913 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UC1103309  Alopecurus aequalis Joseph P. Tracy 1923-6-27 6381 Humboldt near the S. Fork Trinity R. Valley (shores of Lack Pond); Northern Coast Ranges, , Lack Pond 182 Comment
  UC1145046  Alopecurus aequalis Joseph P. Tracy 1950-7-6 19019 Humboldt 3 mi. s. Burr Valley (Buck Mt., high meadow w. side,); Buck Mt. 1158 Comment
  UCD55838  Alopecurus aequalis Joseph P. Tracy 1950-7-6 19019 Humboldt Buck Mountain, 3 miles south of Burr Valley. 1158 Comment
  UC1103313  Alopecurus geniculatus Joseph P. Tracy 1942-6-2 17091 Humboldt at R.R. trestle Loleta 9 Comment
  UC526745  Alopecurus geniculatus Joseph P. Tracy 1926-6-12 7589 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  JEPS27131  Alopecurus saccatus Joseph P. Tracy 1912-7-21 3780 Humboldt Alton Northern Coast Region, Alton 30 Comment
  SEINET200733  Amelanchier alnifolia H. P. Chandler 1282 Humboldt Hoopa Valley IR ; Hupa [Hoopa Valley] Indian Reservation 1097 Comment
  SEINET200734  Amelanchier alnifolia J. P. Tracy 1908-6-27 2768 Humboldt Valley of Van Duzen River opposity Buck Mtn 762 Comment
  BLMAR688  Amelanchier alnifolia var. semiintegrifolia Jennifer Wheeler 2012-6-19 688 Humboldt Lacks Creek, Pine Ridge Road 1097 Comment
  UCR45376  Amelanchier alnifolia var. semiintegrifolia Thomas W. Nelson, Jane P. Nelson 1977-5-30 3419 Humboldt Beside State Route 36 just west of Dinsmore at Hwy bridge over Van Duzen River 732 Comment
  HSC55636  Amelanchier pallida Overton, Butler 1979-7-24 9662 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC8842  Ammophila arenaria Paul Shields Apr 1955 Humboldt 5 mi. SW Arcata Comment
  UC1191079  Amsinckia eastwoodiae H. E. Parks March, 1933 4283 Humboldt Spruce Cove Trinidad Comment
  HSC12709  Anagallis arvensis Jana Kattenhorn 1970-10-28 147 Humboldt Mad River at the mouth of Lindsey Creek, N Bank Rd. off Hwy. 299 Comment
  HSC17828  Anagallis arvensis Paul Shields 1955-6-16 Humboldt HSC Campus Comment
  JEPS20544  Anaphalis margaritacea Chesnut and Drew 1888-8-8 Humboldt Arcata Comment
  CDA10066  Anaphalis margaritacea M. R. Pryor 1948-7-29 Humboldt County Road, 1 mile east of Loleta. 0 Comment
  SEINET11855265  Anaphalis margaritacea J. P. Tracy 1950-1 19363 Humboldt On foothills of Cape Ridge, .5 mi S of town, along coast road, 1 mile inland from Cape Mendocino 61 Comment
  HSC63009  Anemone deltoidea M. Dean Griswold Jr. 1979-4-21 24 Humboldt N side of Hwy. 36 Comment
  UC1196189  Anemone deltoidea Joseph P. Tracy 1923-5-13 6200 Humboldt Strong's Station, on Van Duzen River Strong's Station; North Coast Ranges 60 Comment
  UC1197380  Angelica hendersonii Joseph P. Tracy 1936-8-17 15156 Humboldt Table Bluff 91 Comment
  CDA38221  Angelica hendersonii T. C. Fuller 1958-6-17 1718 Humboldt Maritime bluff above Oceanhouse, Cape Mendocino. 0 Comment
  JEPS16068  Angelica hendersonii Joseph P. Tracy 1924-9-21 6902 Humboldt Northern Coast Ranges, Eureka, toward Bucksport Eureka; Northern Coast Ranges, Eureka 0 Comment
  JEPS16071  Angelica hendersonii Joseph P. Tracy 1923-9-23 6560 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  UC642351  Angelica lucida Joseph P. Tracy 1938-7-15 16078 Humboldt Mouth of Eel River Eel River 6 Comment
  UC1051577  Angelica tomentosa Joseph P. Tracy 1948-9-5 18185 Humboldt 3 mi s of Grizzly Camp (Trinity Summit); Trinity Summit 1524 Comment
  SEINET13943409 Image available Angelica tomentosa W. A. Weber 1964-1 12204 Humboldt Mountain grade between summit of ridge separating Redwood Creek from Hoopa Valley, a few miles west of Hoopa Comment
  HSC32840  Anisocarpus madioides Thomas W. Nelson, James Nelson 1973-5-28 946 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC45639  Anisocarpus madioides Diane L. Reed 1978-5-7 50 Humboldt Friday Ridge Road, near Hwy. 299 Comment
  HSC73702  Antennaria howellii M. A. Baker 1980-7-23 3135 Humboldt Near Orleans Mtn. 1859 Comment
  HSC56962  Antennaria suffrutescens Overton, Butler 1979-7-23 9477 Humboldt Near Horse Mountain Creek, close to the town of Willow Creek 1317 Comment
  UCD56156  Anthoxanthum aristatum K. L. Chambers 1984-6-16 5150 Humboldt Bald Hills Road, 7.0 miles past Lady Bird Johnson Grove, Redwood National Park, east of Orick. Comment
  HSC10096  Anthoxanthum occidentale C. R. Phillips 1964-2-29 Humboldt E of Blue Lake on dirt road turning off Hwy 299 Comment
  CAS-BOT-BC137743  Anthoxanthum odoratum David D. Keck 1948-7-1 5968 Humboldt Trinidad. Comment
  HSC33768  Anthoxanthum odoratum Lon Hall 1975-5-24 377 Humboldt Samoa Dunes, off Samoa Blvd., across from the boat landing Comment
  HSC8937  Anthoxanthum odoratum S. R. Johnson 1965-4-16 37 Humboldt 1 mi. N of Luffenholtz Beach Comment
  UC589908  Anthoxanthum odoratum H. S. Yates 1936-6-18 5736 Humboldt 2 mi n of Big Lagoon 30 Comment
  HSC37848  Anthriscus caucalis Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  CDA20237  Antirrhinum vexillo-calyculatum subsp. breweri Humboldt Ag Comm 2003-11-18 PDR 1417772 Humboldt North Coast Ranges; Hwy 101 at MM 2.75 near Garberville. 0 Comment
  JEPS83419  Antirrhinum vexillocalyculatum subsp. breweri David M. Thompson 1983-9-8 407 Humboldt 0.2 mi w Dinsmore gas station (then 0.4 mi n on gravel road to locked gate, and less than 0.2 mi beyond gate, on e side of road); Blocksburg Quad. (15', 1951) 777 Comment
  RSA33406  Antirrhinum vexillocalyculatum subsp. breweri Doris K. Kildale 1928-10-19 6953 Humboldt Miranda. Comment
  UC1196738  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1900-9-9 955 Humboldt near Hydesville (gravel bar of Yager Creek); Northern Coast Region, Yager Creek 60 Comment
  UC1198743  Aphanes occidentalis Joseph P. Tracy 1934-3-11 13149 Humboldt Weitchpec 121 Comment
  UC213320  Apocynum androsaemifolium Joseph P. Tracy 1919-9-23 5280 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  POM287860  Apocynum androsaemifolium subsp. pumilum Lyman Benson 1929-7-14 s.n. Humboldt S. Fork Eel River Weott Ranger Station Comment
  HSC35591  Aquilegia formosa Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2002 Humboldt At French Camp, Bald Hills Comment
  RSA668408  Aquilegia formosa Thomas W. Stark 1967-7-24 100 Humboldt 1/4 mile W of rt 101, 3 miles N of Trinidad Head. 91 Comment
  UCSB1939  Aquilegia formosa Phillips, Priscilla 1958-6-7 Humboldt Just off Highway 101 on road to Big Lagoon Park Comment
  HSC46039  Aquilegia formosa var. formosa Catherine Chin 1978-5-5 52 Humboldt 5.1 mi. from Ferndale on Mattole Rd. Comment
  HSC99008  Aquilegia formosa var. formosa Cara Witte 2008-7-16 907 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  HSC48990  Aquilegia formosa var. formosa M. A. Baker 1979-5-25 757 Humboldt Comment
  RSA0126138  Arabis divaricarpa var. interposita Joseph P. Tracy 1932-7-11 10396 Humboldt Klamath Mountains, Trinity Summit, open ground at Corral Prairie. 1524 Comment
  HSC75964  Arabis glabra Walter Overton, Butler 1979-8-2 12585 Humboldt Near Bret Hole, close to the town of Hoopa. 1554 Comment
  UC1222662  Arabis glabra Joseph P. Tracy 1950-8-4 19261 Humboldt Grasshopper Peak Lookout, in Bull Creek State Park at the head of Canoe Creek Bull Creek State Park, Canoe Creek Comment
  HSC98619  Arabis glabra var. glabra Cara Witte 2007-5-31 154 Humboldt Along National Forest Rte. 1, near Kinsey Ridge, 1.5 miles north of intersection with 4N09 1299 Comment
  HSC3251  Aralia californica D. E. Anderson 1962-9-14 2337 Humboldt Fish Lake area Comment
  HSC72985  Aralia californica M. A. Baker 1980-5-17 1191 Humboldt Near Le Perron Peak 792 Comment
  RSA697566  Arbutus menziesii J. R. Bruff 1937-8-17 927 Humboldt Richardson Grove. Comment
  SD64214  Arbutus menziesii W. Bertsch 1953-7-29 203 Humboldt 395 Comment
  UC249508  Arbutus menziesii Joseph P. Tracy 1922-4-30 6004 Humboldt Trinity River Valley near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC412751  Arbutus menziesii Mrs. M. H. Manning Apr. 1902 Humboldt Comment
  UCR32149  Arbutus menziesii David J. Keil 1983-7-1 17263 Humboldt North Coast Range, Bull Creek Flats Road, c. 8 mi west of junction US 101 Comment
  CAS-BOT-BC102206  Arctium minus L. R. Abrams 1927-8-30 12050 Humboldt Scotia Comment
  UC585951  Arctostaphylos Joseph P. Tracy 1932-7-12 10474 Humboldt head of Brett Hole Trinity Summit 1828 Comment
  UC1225938  Arctostaphylos X media Joseph P. Tracy 1945-3-30 17505 Humboldt Eureka 45 Comment
  SEINET11984869  Arctostaphylos canescens Unknown 1965-1 543 Humboldt top of Chimisal Mountain, W of Wailaki Recreation Area, Bureau of Land Management Comment
  CAS-BOT-BC24094  Arctostaphylos canescens subsp. canescens Carl B. Wolf 1937-9-13 9335 Humboldt North Coast range Horse Mt. 1524 Comment
  CAS-BOT-BC23757  Arctostaphylos columbiana Alice Eastwood 1907-4-21 12 Humboldt Trinidad Comment
  CAS-BOT-BC23782  Arctostaphylos columbiana Joseph P. Tracy 1934-3-11 13151 Humboldt French Camp Ridge 1066 Comment
  HSC35750  Arctostaphylos columbiana Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1994 Humboldt French Camp, Bald Hills. Comment
  HSC68214  Arctostaphylos columbiana J. P. Smith, J. O. Sawyer 1975-4-6 8052 Humboldt 3 mi. N of Whitehorn, across from the CA Dept. of Forestry Fire Station Comment
  JEPS38611  Arctostaphylos columbiana W. L. Jepson 1921-8-11 9410 Humboldt Big Lagoon 15 Comment
  JEPS38616  Arctostaphylos columbiana Lincoln Constance 1934-5-24 638 Humboldt bordering on e side lower Look Prairie; South Fork Eel River, Bull Creek Region 121 Comment
  RSA622693  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27670 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  SBBG83934  Arctostaphylos columbiana R. Gankin, W. R. Hildreth 1967-10-26 1168 Humboldt 20 rd mi E of US Hwy 101 on Bald Hills Rd (from Orick) Comment
  UC585912  Arctostaphylos columbiana Joseph P. Tracy 1932-2-28 9772 Humboldt Table Bluff Northern Coast Region, around Humboldt Bay 60 Comment
  UC585914  Arctostaphylos columbiana Joseph P. Tracy 1934-7-2 13293 Humboldt vicinity of Trinidad Northern Coast Region 60 Comment
  UC585916  Arctostaphylos columbiana Joseph P. Tracy 1935-2-9 13710 Humboldt Big Lagoon 3 Comment
  RSA152310  Arctostaphylos columbiana var. columbiana Joseph P. Tracy 1945-5-15 17510 Humboldt Kneeland Prairie. 671 Comment
  JEPS38975  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1934-7-9 13332 Humboldt ridge 5 mi s Harris (on road towards Bell Springs) 762 Comment
  RSA632795  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27774 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  RSA632803  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27761 Humboldt Bald Hills Road, eastern end of Redwood National Park, 25 km west of Highway 96, north of Eureka. 700 Comment
  HSC37829  Arctostaphylos manzanita Thomas W. Nelson, Jane P. Nelson 1976-2-21 2249 Humboldt Tish-Tang Campground Comment
  HSC37830  Arctostaphylos manzanita Thomas W. Nelson, Jane P. Nelson 1976-2-21 2253 Humboldt Tish-Tang campground Comment
  HSC73604  Arctostaphylos manzanita M. A. Baker 1980-7-23 3143 Humboldt Near Orleans Mtn. 1859 Comment
  UCD52077  Arctostaphylos manzanita Joseph P. Tracy 1939-4-29 16263 Humboldt Orleans. 121 Comment
  CAS-BOT-BC24363  Arctostaphylos manzanita subsp. manzanita R. N. Raynor 1935-3-1 s.n. Humboldt Fort Seward. Comment
  RSA46696  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1927-6-25 3583 Humboldt Ettersburg Comment
  UC1198679  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-7-11 15417 Humboldt vicinity of Garberville 121 Comment
  HSC48822  Arctostaphylos nevadensis Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 33 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  HSC55162  Arctostaphylos nevadensis Gilbert Muth 1979-8-1 12136 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  RSA46694  Arctostaphylos nevadensis Doris K. Kildale 1938-6-5 15390 Humboldt Horse Mountain Comment
  UC600967  Arctostaphylos patula Joseph P. Tracy 1937-7-29 15600 Humboldt South Fork Mt. 1676 Comment
  CAS-BOT-BC43989  Arctostaphylos uva-ursi C. B. Wolf 1931-8-30 2374 Humboldt Samoa, Humboldt Bay. 7 Comment
  CAS-BOT-BC46794  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17505 Humboldt Eureka 45 Comment
  CAS-BOT-BC47211  Arctostaphylos uva-ursi Josh Suchocki; Charlene Vullo; Kyle Wear 1995-4-15 101 Humboldt Manila. Comment
  RSA381131  Arctostaphylos uva-ursi Roman Gankin, W. Richard Hildreth 1967-10-24 1148 Humboldt 1.7 miles S. of Samoa, on the Humboldt Peninsula. Comment
  UC1196866  Arctostaphylos uva-ursi J. P. Tracy 1899-3-26 299 Humboldt Rick's Prairie immediate vicinity of Eureka 0 Comment
  UC1196878  Arctostaphylos uva-ursi J. P. Tracy 1909-10-7 3111 Humboldt Gans Prairie 457 Comment
  SEINET11987332  Arctostaphylos uva-ursi var. coactilis J. Sigg, McClintock, E.; Knight, W.; Knight, I. 1981-1 4213 Humboldt Strybing Arboretum, Golden Gate Park, San Francisco, orig. probably from Samoa Comment
  UC668116  Arenaria serpyllifolia subsp. serpyllifolia Joseph P. Tracy 1933-6-25 12624 Humboldt 2 to 5 mi e South Fork; Eel River 45 Comment
  SEINET3918774  Aristida adscensionis J. I. Mallory 1955-9-17 122 Humboldt North-northwest 3/8 miles of headquarters, Cottrell Ranch. Quad. 29A-2.; 0 747 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
  HSC65884  Arnica cernua M. A. Baker 1980-6-16 1944 Humboldt Near Onion Mtn. 1280 Comment
  SEINET2029493 Image available Arnica cernua Joseph P. Tracy 1938-6-13 15902 Humboldt Horse Mountain 1433 Comment
  HSC40999  Arnica discoidea J. O. Sawyer 1975-10-17 2709 Humboldt Along Big Hill Rd. 915 Comment
  CAS-BOT-BC82648  Arnica latifolia Doris K. Kildale 1926-4-25 1808 Humboldt Sugar Bowl Mountain on old road [frm.] from Willow Creek to Hoopa Comment
  HSC98679  Arnica spathulata Cara Witte 2008-7-10 851 Humboldt Forest Service Road 4N06A. Cow Creek Ridge. 1.5 mile from National Forest 1. Under powerlines. 1239 Comment
  UC1057744  Arrhenatherum elatius W. L. Colwell 1957-7-6 42 Humboldt 6 mi nw of Bridgeville (Redwood House Ranch, Quadrangle 26C3); Redwood House Ranch 685 Comment
  UC212866  Arrhenatherum elatius Joseph P. Tracy 1919-8-28 5184 Humboldt Northern Coast Ranges, at Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  HSC4719  Artemisia douglasiana Paul Shields 1955-9-29 Humboldt 1/2 mi. S of Fernbridge Comment
  UC449644  Artemisia dracunculus Joseph P. Tracy 1912-10-20 4002 Humboldt on sandy bars of Van Duzen River (Alton) 30 Comment
  SEINET190483  Artemisia pycnocephala H. E. Parks Aug 1941 24186 Humboldt Little River State Park Comment
  UC164826  Artemisia pycnocephala J. P. Tracy 1909-7-18 3023 Humboldt opp. Eureka (sand hills of ocean beach); Samoa Comment
  UC204825  Artemisia suksdorfii Joseph P. Tracy 1918-7-1 4973 Humboldt 3 mi s point of cape; Northern Coast Ranges, Cape Mendecino 3 Comment
  HSC49144  Asarum caudatum J. O. Sawyer 1977-4-23 2840 Humboldt Dagsaw Spring on road to Onion Mtn. Comment
  HSC3266  Asarum caudatum D. E. Anderson 1962-3-8 1929 Humboldt E of HSC campus Comment
  RSA114387  Asarum caudatum G. R. Campbell 1955-9-20 21468 Humboldt 4 mi. NE of Strongs Station (Van Duzen River) on Yager road Comment
  UC1173689  Asclepias fascicularis Joseph P. Tracy 1939-7-16 16349 Humboldt Garberville 152 Comment
  RSA21097  Aspidotis densa C. B. Wolf 1937-6-14 8825 Humboldt North Coast Range, Kneeland Prairie 823 Comment
  RSA417697  Aster occidentalis Thomas W. Nelson, Jane Nelson 1977-9-3 3726 Humboldt Along Creek draining, north from pond above Alder Spring. 1585 Comment
  RSA167196  Aster oregonensis Joseph P. Tracy 1950-9-22 19378 Humboldt Roadside, about 3 miles southwest of Orleans Comment
  CAS-BOT-BC177267  Astragalus agnicidus Robin Bencie 1993-6-15 01 Humboldt Miranda, 2 mi. W. of Hwy. 101 on Bear Butte Road 500 Comment
  CAS-BOT-BC27579  Astragalus agnicidus Henry Tosten 1931-6-7 s.n. Humboldt Near Bear Buttes, 4 mi S of Miranda. Local on Foster & Pierce Ranch 762 Comment
  HSC74723  Astragalus purshii Gail Newton 1981-7-23 2267 Humboldt Near Bug Creek Butte 1494 Comment
  CAS-BOT-BC193134  Astragalus rattanii var. rattanii Volney Rattan 1883-6-13 s.n. Humboldt Bug Creek, a tributary of Mad Riv. Comment
  JEPS21029  Astragalus rattanii var. rattanii Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  JEPS79823  Astragalus rattanii var. rattanii Joseph P. Tracy 1932-6-19 10245 Humboldt nw slope of Buck Mountain Buck Mountain (lower foothills); Northern Coast Ranges, Buck Mountain 762 Comment
  UC33312  Astragalus rattanii var. rattanii W. C. Blasdale 1896-6-8 Humboldt Graham's Range Comment
  RSA187393  Astragalus umbraticus Volney Rattan 1903-1 1878 Humboldt [no locality information provided] Comment
  HSC44050  Athyrium filix-femina var. cyclosorum Thomas W. Nelson, Jane Nelson 1977-6-19 3493 Humboldt Above Alder Springs, N of pond 1585 Comment
  UC197924  Athyrium filix-femina var. cyclosorum Joseph P. Tracy 1912-7-25 3814 Humboldt along Black Creek Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC70632  Athysanus pusillus R. York 1980-5-18 584 Humboldt Near Black Mtn 792 Comment
  HSC77503  Athysanus pusillus L. P. Janeway 1983-5-21 300 Humboldt Above Titlow Hill Rd., 3.3 mi S of Hwy. 299 1250 Comment
  CAS-BOT-BC170275  Atriplex confertifolia Dr. A. Kellogg; W. G. W. Harford 1868-1-1 862 Humboldt Humboldt Comment
  UC55498  Atriplex leucophylla J. P. Tracy 1901-8-7 1264 Humboldt opp. Eureka (sand hills of Ocean Beach at Samoa); Samoa, opp. Eureka Comment
  UCR139066  Atriplex patula subsp. obtusa Gordon Leppig 1999-10-25 1266 Humboldt Eureka, Palco Marsh 1 Comment
  UC673039  Atriplex triangularis Harold E. Parks and Joseph P. Tracy 1934-10-13 11152 Humboldt Big Lagoon 3 Comment
  UC526701  Avena fatua Joseph P. Tracy 1933-5-20 12229 Humboldt 3 mi s point of cape (sw slopes fronting ocean); Northern Coast Ranges, Cape Mendocino 3 Comment
  CAS-BOT-BC99405  Baccharis pilularis Joseph P. Tracy 1923-10-6 6565 Humboldt Eureka, around Humboldt Bay 30 Comment
  HSC6585  Barbarea verna D. E. Anderson 1962-3-31 1968 Humboldt Along new Hwy. 101, W side of Freshwater Lagoon Comment
  CAS-BOT-BC106353  Bellis perennis Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  POM41982  Bellis perennis Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC1199304  Bellis perennis Joseph P. Tracy 1924-3-9 6617 Humboldt Kneeland Prairie, near Lawrence Creek Northern Coast Ranges 762 Comment
  HSC32388  Bellis perennis Linda M. Barker 1974-5-11 180 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC100357  Bensoniella oregana T. Jimerson, S. L. Birch 1980-7-11 975 Humboldt Snow Camp Mountain, Rooster Rock. 1280 Comment
Read comments Nov 6 2018
  UC1222393  Bensoniella oregona Joseph P. Tracy 1951-6-14 19416 Humboldt e side Snow Camp Meadows; e side of Snow Camp Meadows Comment
  HSC35711  Berberis aquifolium Thomas W. Nelson 1975-10-12 2238 Humboldt McKeown Ranch, N of Dinsmore Comment
  SD56733  Berberis nervosa Darley F. Howe 1963-5-26 3555 Humboldt 3.2 miles east of Orick on Ball Hill Road 455 Comment
  HSC104398  Berberis nervosa A. T. Leiser 1980-7-9 Humboldt Redwood National Park; Highway 101 re-route Comment
  CAS-BOT-BC75805  Berberis pinnata Doris K. Kildale 1929-4-25 7433 Humboldt Kneeland Prairie. 792 Comment
  CAS-BOT-BC102109  Bidens cernua Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  SBBG226  Blechnum spicant H. and M. Dearing 1939-5-26 3450 Humboldt near Bishop Pines Auto Court Comment
  UC562685  Boechera platysperma Joseph P. Tracy 1935-7-28 14319 1/2 Humboldt Head of Devils Hole Trinity Summit, Devils Hole 1828 Comment
  HSC69759  Bolboschoenus robustus Thomas W. Nelson 1977-9-22 3748 Humboldt E side of SR 101 just N of the Eureka Airport Comment
  HSC74466  Boschniakia strobilacea M. A. Baker 1980-5-17 1200 Humboldt Near Le Perron Peak 792 Comment
  HSC76195  Boykinia major Overton, Butler 1979-8-2 12503 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC76264  Boykinia major Denis Kearns 1981-7-23 410 Humboldt Near Whiteys Peak. 1524 Comment
  RSA466744  Boykinia major Anstruther Davidson 1918-07 3340 Humboldt Eel River. Comment
  HSC60020  Boykinia occidentalis M. A. Baker 1978-5-6 510 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  UC420420  Boykinia occidentalis Mrs. M. H. Manning 1901-4 55 Humboldt near Hupa; near Hupa Comment
  RSA12452  Boykinia occidentalis Carl B. Wolf 1934-6-30 5841 Humboldt 4 miles from Shelter Cove on rd to Briceland. 152 Comment
  SEINET5781061 Image available Brickellia californica S. K. Harris, C. M. Wilder 1938-9-8 Humboldt Van Duzen River, below Blue Slide Comment
  HSC33759  Briza minor Margaret Weatherwax 1975-5-24 159 Humboldt Dunes off Samoa Blvd. across from boat landing Comment
  HSC74668  Brodiaea elegans subsp. elegans Gail Newton 1981-8-7 2433 Humboldt Near Bug Creek 1042 Comment
  UCR123923  Brodiaea elegans subsp. elegans George K. Helmkamp, E. A. Helmkamp 2001-7-8 6967 Humboldt North coast hills., Calif. Hwy 36, 2.2 mi west of Dinsmore 732 Comment
  RSA12519  Brodiaea elegans subsp. elegans Carl B. Wolf 1934-7-3 5917 Humboldt 21 miles from Orick on road to Weitchpec. 152 Comment
  HSC3016  Brodiaea terrestris subsp. terrestris T. M. Mingo May 1965 Humboldt 100 ft. N of parking area at College Cove Comment
  HSC90775  Brodiaea terrestris subsp. terrestris Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  UC527819  Brodiaea terrestris subsp. terrestris Ira L. Wiggins 1932-6-18 5877 Humboldt mouth of Little River Little River Comment
  UC1197744  Brodiaea terrestris subsp. terrestris J. P. Tracy 1896-7-4 521 Humboldt near Ft. Humboldt (immediate vicinity of Eureka); Eureka 0 Comment
  HSC102641  Bromus carinatus var. marginatus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1625 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  CAS-BOT-BC155994  Bromus diandrus Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek near Orleans. Comment
  HSC102946  Bromus diandrus J. P. Smith 2009-5-30 12599 Humboldt Arcata. Near intersection of Valley West and Giuntoli Road Comment
  HSC35281  Bromus diandrus J. D. Ackerman, A. M. Montalvo 1975-6-22 491 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36 Comment
  UC1103359  Bromus diandrus Joseph P. Tracy 1912-7-26 3877 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC1607840  Bromus hordeaceus H. E. Parks June 1935 4996 Humboldt Trinidad District, Egg Point Egg Point; Trinidad District, Egg Point Comment
  UC204534  Bromus madritensis subsp. rubens Joseph P. Tracy 1918-5-12 4929 Humboldt Northern Coast Ranges, at Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  SEINET202034 Image available Bromus orcuttianus Joseph P. Tracy 1949-7-19 18373 Humboldt Grouse Mtn. on Friday Ridge, at Friday's Camp 1219 Comment
  UC204535  Bromus sterilis Joseph P. Tracy 1916-5-31 4701 Humboldt along Eel River from South Fork to Scotia, Stitz Creek Stitz Creek; Northern Coast Ranges, Eel River, Stitz Creek 60 Comment
  CAS-BOT-BC161534  Bromus tectorum Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek near Orleans. Comment
  UC1145179  Bromus tectorum Joseph P. Tracy 1939-4-29 16248 Humboldt 8 mi below Orleans (near Slate Creek, Klamath River); Klamath River 121 Comment
  JEPS75417  Bromus vulgaris W. L. Jepson 1932-7-27 16422 Humboldt Bull Creek 106 Comment
  UC180480  Bromus vulgaris Joseph P. Tracy 1914-5-14 4444 Humboldt Northern Coast Ranges, Fort Seward Fort Seward; Northern Coast Ranges, Fort Seward 121 Comment
  UCR93380  Buddleja davidii Kathy Harper, Dane Karr 1994-6-14 s.n. Humboldt North Coast Range, 11-12 mi. north of Willow Creek on State Hwy 96, c. 0.25 mi. north of 'vista point' along Trinity River 30 Comment
Read comments Apr 27 2007
  CAS-BOT-BC36855  Cakile edentula var. edentula Alice Eastwood; John Thomas Howell 1934-4-11 1323 Humboldt Trinidad. Comment
  CHSC10120  Cakile maritima J. W. Johnson 1962-4-29 1299 Humboldt Arcata. W.M. Lanphere Farm, Samoa Peninsula. Comment
  BLMAR12  Calamagrostis foliosa Brad Barr June, 1982 12 Humboldt King range, slide area above smith cabin in steep slopes Comment
  UC1145051  Calamagrostis foliosa Joseph P. Tracy 1936-6-9 14899 Humboldt at bridge 3 mi e Petrolia (bluff bank of river); Mattole River 30 Comment
  UCD56961  Calamagrostis foliosa Joseph P. Tracy 1938-6-17 15967 B Humboldt near 'Panther Gap' on road between Mattole and Bull Creek. 822 Comment
  HSC9412  Calamagrostis nutkaensis D. E. Anderson 1961-9-13 1808 Humboldt Big Lagoon County Park Comment
  UC673026  Calandrinia ciliata Joseph P. Tracy 1933-7-3 12638 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC80389  Calocedrus decurrens Doris K. Kildale 1926-8-15 2540 Humboldt Hoopa Mountain 579 Comment
  HSC56964  Calocedrus decurrens Overton, Butler 1979-7-23 9484 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  UC667131  Calochortus coeruleus Joseph P. Tracy 1932-7-12 10483 Humboldt Head of Brett Hole Trinity Summit 1828 Comment
  SEINET12044651  Calochortus elegans var. nanus M. S. Jussel 1931-1 s.n. Humboldt 20 mi N of Garberville Comment
  HSC15423  Calochortus monophyllus J. Wendell Howe 1236 Humboldt Comment
Read comments Feb 11 2018
  UCR45374  Calochortus tolmiei Thomas W. Nelson 1977-6-15 3450 Humboldt North Coast Range, [Horse Mountain] along old road to ski area 1372 Comment
  CAS-BOT-BC494358  Calochortus tolmiei Myrtle Paulson 1918-4-28 87538 Humboldt Eureka Comment
  CAS-BOT-BC496520  Calochortus tolmiei Lincoln Constance; Alan A. Beetle; Joseph P. Tracy 1940-5-17 2614 Humboldt Larrabee Valley, near Eureka 762 Comment
  UC3435  Calochortus tolmiei H. N. Bolander 1867-1 6555 Humboldt Red Mts. Comment
  UC502923  Caltha biflora Joseph P. Tracy 1932-7-17 10671 Humboldt Ridges east of Corral Prairie, Trinity Summit; Klamath Mountains. 1828 Comment
  HSC75826  Caltha leptosepala Bill Copeland 1980-6-26 323 Humboldt Near Snow Camp Lake 1372 Comment
  UC205227  Calycadenia fremontii Joseph P. Tracy 1919-9-13 5188 Humboldt near Mouth of Willow Creek; Valley of Trinity River, Northern Coast Ranges 152 Comment
  HSC100365  Calycadenia truncata J. McRae 2007-9-13 Humboldt Sims Mtn., Panther dozer line. 732 Comment
  HSC16566  Calypso bulbosa J. F. Knezevich 1968-4-20 426 Humboldt E of Korbel on Bald Mtn. Comment
  HSC102606  Calyptridium monospermum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1593 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC40020  Calyptridium monospermum Thomas W. Nelson, Jane P. Nelson 1976-7-1 2923 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  HSC44550  Calyptridium monospermum Brad Klipfel 1973-7-15 169 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC55082  Calyptridium monospermum G. L. Clifton, Griswold 1979-7-31 11746 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  SEINET200994  Calystegia Joseph P. Tracy 1927-7-24 8298 Humboldt Upper Mattole 152 Comment
  HSC46384  Calystegia silvatica subsp. disjuncta Catherine Chin 1978-8-19 107 Humboldt 11th and B St., Arcata Comment
  RSA71112  Calystegia soldanella F. W. Peirson 1923-7-11 3805 Humboldt 18 miles north of Eureka Comment
  SEINET3992217  Camassia leichtlinii Unknown 1912-6-30 3717 Humboldt Eureka 61 Comment
  HSC46958  Camissonia cheiranthifolia J. P. Smith, Thomas W. Nelson 1977-6-30 9202 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  JEPS11849  Campanula prenanthoides Lincoln Constance 1934-6-11 854 Humboldt Lower Look Prairie, and Bull Creek road to Dyerville South Fork Eel River, Bull Creek Region Comment
  SEINET10462871  Campanula prenanthoides Chandler 1901-6-14 CHANDLER 1476 Humboldt KLAMATH RIVER, ORLEANS TO SOMES BAR 1000 Comment
  UC1021825  Campanula prenanthoides J. M. Tucker 1948-9-3 1859 Humboldt road bank on Friday Ridge Road just below Black Rock ((junction of Friday Ridge Road and the Horse Mountain-Grouse Mountain Road)) Comment
  UC1174488  Campanula prenanthoides Volney Rattan 1883-6-30 Humboldt Comment
  UC602533  Campanula prenanthoides Joseph P. Tracy 1933-7-26 12927 Humboldt Grouse Creek Basin 762 Comment
  SEINET10463757  Campanula scouleri Griswold 1979-7-11 GRISWOLD 6946 Humboldt Near Snow Camp Mountain, on the Iagua Buttes quadrangle, close to the town of Willow Creek 1320 Comment
  SEINET10463507  Campanula scouleri Rattan 1883-6-30 RATTAN s.n. Humboldt BETWEEN REDWOOD CREEK AND MAD RIVER Comment
  SEINET10463742  Campanula scouleri Kildale 1926-6-27 KILDALE 2191 Humboldt Sweasey Lake, McClellan Mountain 823 Comment
  SEINET201622  Campanula scouleri Joseph P. Tracy 1937-7-25 15560 Humboldt Happy Camp Mountain In Trinity Summit Range NE of Hawkins Bar. 1280 Comment
  HSC26654  Cardamine breweri Thomas W. Nelson 1971-4-27 427 Humboldt Along Jolly Giant Creek, HSU campus Comment
  HSC59654  Cardamine californica Michael Dalke 1979-4-21 57 Humboldt Lord Ellis Summit area, 1 mi. S of Hwy. 299 640 Comment
  UC162881  Cardamine californica J. P. Tracy 1905-3-12 2150 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  HSC99073  Cardamine californica var. californica Cara Witte 2008-7-2 808 Humboldt Forest Service Road 4N38. 2 miles north of intersection to Board Camp Lookout. Near gate. 1401 Comment
  UC668053  Cardamine californica var. californica Joseph P. Tracy 1938-4-5 15704 Humboldt Willow Creek Canyon Willow Creek Canyon (along Trinity Highway) 487 Comment
  RSA176497  Cardamine californica var. integrifolia Doris K. Kildale 1927-1-23 2974 Humboldt Van Duzen River at the Blue Shale. Comment
  UC1222655  Cardamine californica var. sinuata Joseph P. Tracy 1950-5-7 18651 Humboldt on the Redwood House Road 1 mi s Redwood House (on Yager Slope, head of South Yager Creek); head of South Yager Creek, on Yager Slope Comment
  HSC74460  Cardamine oligosperma M. A. Baker 1980-5-18 1356 Humboldt Near Black Mtn. 792 Comment
  HSC90418  Cardamine oligosperma Jean Hanson 1980-3-8 27 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  UC1222955  Carduus tenuiflorus Joseph P. Tracy 1950-6-8 18740 Humboldt on s side of Cape Ridge; Bear River, Capetown, Cape Ridge 30 Comment
  CAS-BOT-BC18519  Carex abrupta Joseph Prince Tracy 1937-7-29 15580 Humboldt South Fork Mountains. McKay Camp. 1676 Comment
  HSC96930  Carex abrupta E. Kimbrough, W. Meier 2007-6-13 10 Humboldt Grouse Mountain, 1 mi. E of NF1 on FS 5N04 1524 Comment
  CAS-BOT-BC17793  Carex amplifolia Joseph Prince Tracy 1935-6-23 13986 Humboldt French Camp Ridge. 1066 Comment
  RSA34051  Carex angustata A. A. Heller 1923-7-10 s.n. Humboldt Eel River between Scotia and Pepperwood. Comment
  CAS-BOT-BC18009  Carex arcta Joseph Prince Tracy 1934-7-13 13389 Humboldt Dow's Prairie. 60 Comment
  HSC95660  Carex arcta Juha Pykala, D. H. Norris 1987-6-5 1436 Humboldt E of Maple Creek, Lake Prairie 1052 Comment
  POM247170  Carex athrostachya Joseph P. Tracy 1934-7-18 13426 Humboldt Grouse Mountain. 1524 Comment
  UC1103083  Carex athrostachya Joseph P. Tracy 1933-7-25 12844 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  CAS-BOT-BC19218  Carex barbarae Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  CAS-BOT-BC19437  Carex bolanderi Robert F. Thorne; P. Everett 1965-8-5 35128 Humboldt Wailaki Recreation Site. 518 Comment
  RSA246855  Carex bolanderi Robert F. Thorne, Percy C. Everett 1965-8-5 35136 Humboldt Mt. Chamisal: below summit. 747 Comment
  SEINET7552597 Image available Carex bolanderi L. P. Janeway 2003-7-30 7947 Humboldt High North Coast Ranges. Small spring and seep 100 m southwest of Clear Lake, 3.1 km southeast of Titlow Hill. 1494 Comment
  UC195346  Carex bolanderi Joseph P. Tracy 1916-6-25 4747 Humboldt e Trinidad; Northern Coast Ranges, Redwood Creek 152 Comment
  HSC44056  Carex bolanderi Thomas W. Nelson, Jane P. Nelson 1977-7-1 3552 Humboldt Along Blanket Creek 1494 Comment
  HSC70165  Carex bolanderi Thomas W. Nelson 1978-6-10 4417 Humboldt Behind the Seventh-Day Adventist Church on F St. 61 Comment
  CAS-BOT-BC34977  Carex densa Joseph Prince Tracy 1935-5-25 13855 Humboldt Fort Seward. 106 Comment
  CHSC35530  Carex densa Thomas Nelson; Ken Hindley 1978-5-28 4086 Humboldt On Mckeown Ranch north of Dinsmore. 762 Comment
  CHSC98363  Carex densa Thomas W. Nelson; Jane P. Nelson 1982-7-10 7086 Humboldt North Coast Ranges. Along Mad River at Anderson's Ford. 609 Comment
  UC562272  Carex echinata Joseph P. Tracy 1933-7-25 12845 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  CAS-BOT-BC20078  Carex echinata Joseph Prince Tracy 1930-7-16 8986 Humboldt Northern Coast Ranges. South Fork Mountain. McKay Camp. 1676 Comment
  CHSC97053  Carex echinata subsp. phyllomanica Gordon Leppig 1998-6-8 798 Humboldt Big Lagoon County Park. Big Lagoon Bog. Common in northern section. NAD27 UTM Zone 10, 405321E 4557202N. 3 Comment
  HSC76841  Carex exsiccata L. P. Janeway 1982-8-7 115 Humboldt Dry Lagoon 3 Comment
  CAS-BOT-BC20012  Carex feta H. D. Ripley; R. C. Barneby 1945-6-16 6823 Humboldt NW of Harris. 883 Comment
  JEPS25999  Carex gracilior Joseph P. Tracy 1936-5-29 14826 Humboldt on ridge e Orick; Gans Prairie 548 Comment
  UC1108985  Carex gynodynama H. E. and S. T. Parks May, 1937 5813 Humboldt Spruce Cove, Trinidad, near sea level. Comment
  UC1116268  Carex gynodynama Joseph P. Tracy 1942-6-15 17127 Humboldt Englewood, Natural Prairie, near Redcrest Resort. Comment
  UC834  Carex harfordii Harley P. Chandler May, 1901 1115 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
Read comments Sep 15 2010
  CAS-BOT-BC21755  Carex hassei Joseph Prince Tracy 1927-4-23 7917 Humboldt Big Lagoon. 6 Comment
  UC1103596  Carex hassei Joseph P. Tracy 1926-6-12 7592 Humboldt Big Lagoon Northern Coast Region 6 Comment
  HSC70164  Carex hendersonii Thomas W. Nelson, Jane P. Nelson 1978-6-10 4416 Humboldt Behind the Seventh-Day Adventist Church on F St. 61 Comment
  HSC102152  Carex laeviculmis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1059 Humboldt Patterson Meadows 1555 Comment
  UC562251  Carex lenticularis var. impressa Joseph P. Tracy 1932-7-14 10555 Humboldt Corral Prairie Trinity Summit 1584 Comment
  RSA246867  Carex leptalea subsp. leptalea Robert F. Thorne 1965-8-7 35181 Humboldt Big Lagoon, south end. 2 Comment
  SEINET10710170  Carex leptopoda David Castaner 1989-6-19 Castaner 10248 Humboldt Fern Canyon. Comment
  JEPS79830  Carex luzulina Joseph P. Tracy Jul 16 1930-Jul 19 1930 8987 Humboldt South Fork Mountain at McKay Camp, Northern Coast Ranges South Fork Mountain; Northern Coast Ranges, South Fork Mt., McKay Camp 1676 Comment
  UC1103588  Carex luzulina var. ablata Joseph P. Tracy 1923-6-24 6367 Humboldt Bald Mountain, near High Prairie Northern Coast Ranges 1066 Comment
  CAS-BOT-BC31586  Carex luzulina var. luzulina Joseph Prince Tracy 1939-7-9 16341 Humboldt Snow Camp. 1402 Comment
  HSC102157  Carex microptera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1065 Humboldt Patterson Meadows 1555 Comment
  HSC70636  Carex multicaulis R. York 1980-5-18 600 Humboldt Near Black Mtn. 792 Comment
  CAS-BOT-BC119539  Carex nudata W. R. Dudley 1899-6-21 s.n. Humboldt Bluffs below forks of Eel River. Comment
  CAS-BOT-BC119383  Carex obnupta David Daniels Keck 1938-8-5 4770 Humboldt Big Lagoon Comment
  HSC76804  Carex obnupta L. P. Janeway 1982-8-7 113 Humboldt Dry Lagoon 3 Comment
  HSC90676  Carex obnupta Gail Newton 1982-6-1 3569 Humboldt Elk River Wildlife Area, Eureka. Comment
  UC50826  Carex obnupta J. P. Tracy 1901-6-30 1193 Humboldt immediate vicinity Eureka 0 Comment
  CDA33127  Carex obnupta E. C. Whitney 1961-4-6 Humboldt Stone Lagoon; in drainage basin. 0 Comment
  HSC59577  Carex obnupta Rick Lundquist 1979-5-18 112 Humboldt Clam Beach Ponds 0 Comment
  UC585634  Carex ovalis Joseph P. Tracy 1937-8-7 15617 Humboldt Murphy Ridge Bald Mt. 914 Comment
  CAS-BOT-BC119229  Carex pachystachya Joseph Prince Tracy 1927-5-29 8077 Humboldt Big Lagoon 6 Comment
  CAS-BOT-BC119231  Carex pachystachya Joseph Prince Tracy 1927-7-4 8233 Humboldt Iaqua 609 Comment
  HSC82386  Carex pachystachya Thomas W. Nelson 1979-7-11 5012 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  SEINET3827283  Carex pachystachya Joseph P. Tracy 1938-1 16083 Humboldt In shade. 30 Comment
  HSC104441  Carex pansa Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 15 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC49246  Carex pansa Rudolf W. Becking 1979-3-25 Humboldt U.S. Coast Guard Station along N Spit Humboldt Bay, Fairhaven Comment
  SEINET7572538 Image available Carex preslii Ray Tallent 1987-8-11 895 Humboldt Six Rivers National Forest, road S of Horse Mtn. 1390 Comment
  CAS-BOT-BC118007  Carex rossii Joseph Prince Tracy 1927-6-19 8201 Humboldt Big Lagoon 15 Comment
  JEPS79863  Carex subbracteata Joseph P. Tracy 1916-5-31 4695 Humboldt along Eel R. from S. Fork to Scotia (Holmes Flat); Northern Coast Ranges, Eel River, Holmes Flat 60 Comment
  CAS-BOT-BC116681  Carex subfusca Joseph Prince Tracy 1936-6-17 14954 Humboldt Buck Mountain, lower foothills of its NW slope. 762 Comment
  HSC103143  Carex subfusca M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1154 Humboldt Patterson Meadows 1555 Comment
  JEPS75415  Carex tumulicola W. L. Jepson 1932-7-26 16415 Humboldt Bull Creek 106 Comment
  NY11390  Carex unilateralis J. P. Tracy 1912-7-21 3783 Humboldt 30.5 Comment
  POM248622  Carex unilateralis Joseph P. Tracy 1937-8-7 15618 Humboldt Bald Mt. 915 Comment
  UC585635  Carex unilateralis Joseph P. Tracy 1937-8-7 15618 Humboldt Bald Mountain, Murphy Ridge 914 Comment
  HSC97203  Castilleja affinis subsp. affinis Kiera A. Freeman, Heather J. Perry 2007-6-4 2 Humboldt 8 mi. S of Hwy. 299 on NF1 1372 Comment
  JEPS83013  Castilleja affinis subsp. affinis L. R. Heckard 1984-5-14 1655 Humboldt 2 mi s Phillipsville (just n of Freeway 101 on Avenue of the Giants) 83 Comment
  JEPS103931  Castilleja affinis subsp. litoralis T. I. and F. M. Chuang 1991-7-8 7874 Humboldt Ca 2 mi SW of Orick. Comment
  HSC95070  Castilleja ambigua subsp. humboldtiensis Lila Tauzer 2002-5-3 45 Humboldt Arcata Marsh 0 Comment
  HSC45625  Castilleja applegatei Diane L. Reed 1978-4-22 20 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC55347  Castilleja applegatei Griswold, Butler 1979-7-12 7237 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC56116  Castilleja arachnoidea Gilbert Muth 1979-8-1 11889 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  JEPS10649  Castilleja exserta subsp. latifolia Frank W. Peirson 1926-7-14 7064 a Humboldt Table Bluff Lighthouse Table Bluff Comment
  UC1196861  Castilleja miniata Joseph P. Tracy 1912-7-31 3950 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  CAS-BOT-BC244882  Castilleja miniata E. A. McGregor 1921-8-8 s.n. Humboldt 3 miles up Klamath River Comment
  HSC31218  Castilleja pruinosa D. E. Anderson 1972-6-20 5731 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  UC902243  Castilleja pruinosa Joseph P. Tracy 1947-7-9 17847 Humboldt Horse Mountain 1432 Comment
  HSC103246  Castilleja pruinosa Lisa D. Hoover 1996-6-12 145 Humboldt Six Rivers National Forest, Lower Trinity District, Grouse Mtn. Quad, Horse Mtn. 1463 Comment
  UC902258  Castilleja rubicundula subsp. lithospermoides Joseph P. Tracy 1943-5-23 17425 Humboldt e of Redwood Creek (on Trinity Highway); Berry's Mt. 487 Comment
  CDA35561  Ceanothus cuneatus subsp. cuneatus Gordon Leppig 1998-6-1 877 Humboldt Horse Mountain. Titlow Hill Road. Comment
  HSC37602  Ceanothus foliosus var. foliosus R. Sutherland 1975-5-13 10 .13575 Humboldt Brushy flat 509 Comment
  HSC48784  Ceanothus integerrimus Brad Klipfel 1975-6-17 662 Humboldt Along Titlow Hill Rd. Comment
  HSC60024  Ceanothus integerrimus M. A. Baker 1978-5-6 474 Humboldt Bald Hills Rd., between Klamath River and French Camp Rd. Comment
  HSC98205  Ceanothus integerrimus D. E. Anderson 1965-5-8 3657 Humboldt W end of bridge over Trinity River, 0.5 mile S of Willow Creek. Comment
  UC1198005  Ceanothus integerrimus Joseph P. Tracy 1934-4-15 13181 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC1198007  Ceanothus integerrimus Joseph P. Tracy 1935-5-25 13878 Humboldt Fort Seward 106 Comment
  CDA36054  Ceanothus integerrimus var. macrothyrsus CDFA Staff 1977-6-21 Humboldt Willow Creek. 0 Comment
  CAS-BOT-BC51145  Ceanothus lemmonii Joseph P. Tracy 1929-4-28 8551 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC101656  Ceanothus oliganthus var. sorediatus J. P. Smith, J. O. Sawyer 2011-4-23 13116 Humboldt Along Salmon Creek Rd., 3.4 miles from its junction with U.S. 101. 203 Comment
  HSC37606  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-7-11 7 .11775 Humboldt Along county rd. 259 Comment
  CAS-BOT-BC51217  Ceanothus parryi M. S. Jussel 1931-5-2 s.n. Humboldt 20 miles N. of Garberville Comment
  CAS-BOT-BC51223  Ceanothus parryi C. Hart Merriam 1920-8-27 s.n. Humboldt South fork Eel River (10 miles so. of Garberville) Comment
  HSC18310  Ceanothus parryi P. J. Zinke 1950-8-25 158 Humboldt Salmon Creek 3 mi W of Miranda 91 Comment
  OBI10389  Ceanothus parryi Carl B. Wolf 1941-7-27 11086 Humboldt N Coast Ranges, 5.8 mi W Maple Crk on rd to Freshwater 610 Comment
  CAS-BOT-BC52045  Ceanothus prostratus Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  CAS-BOT-BC53063  Ceanothus pumilus Clarence R. Quick 1959-7-24 59 -34 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  HSC59633  Ceanothus pumilus J. P. Smith, J. O. Sawyer 1974-6-2 7654 Humboldt Below summit of Horse Mtn. 1494 Comment
  HSC76580  Ceanothus pumilus Denis Kearns 1981-7-6 67 Humboldt Near Mosquito Lake 1256 Comment
  HSC76582  Ceanothus pumilus Denis Kearns 1981-6-24 20 Humboldt Near Cedar Camp 1219 Comment
  CAS-BOT-BC52988  Ceanothus thyrsiflorus A. A. Heller 1937-6-11 15916 Humboldt Sandy bluff above Patric Point State park, near Big Lagoon Comment
  UC1193280  Ceanothus thyrsiflorus R. H. Neuns 1950-10-17 142 Humboldt Bear Creek Road 6 mi n Shelter Cove; Quad. 28D4, Bear Creek Rd, n of Shelter Cove 609 Comment
  UC275289  Ceanothus thyrsiflorus Joseph P. Tracy 1924-8-10 6796 Humboldt Strongs' Station Northern Coast Ranges, Van Duzen River (on Van Duzen River) 91 Comment
  UCSC000467  Ceanothus thyrsiflorus A. E. Wieslander 1931-5-21 209 Humboldt China Flat, Kneeland Comment
  CAS-BOT-BC52867  Ceanothus velutinus Joseph P. Tracy 1932-7-17 10698 Humboldt Klamath Mountains - open ground at Corral Prairie 1524 Comment
  CAS-BOT-BC52870  Ceanothus velutinus S. K. Harris 1942-6-12 1257 Humboldt Fickle Hill Road, 5 miles north and 2 miles east of Boynton Prairie 630 Comment
  HSC41282  Ceanothus velutinus Brad Klipfel 1974-7-23 472 Humboldt Horse Mtn. Comment
  UC1198027  Ceanothus velutinus Joseph P. Tracy 1913-7-20 4374 Humboldt Near Three Creeks 1066 Comment
  UC1222952  Centaurea cyanus Joseph P. Tracy 1942-7-18 17281 Humboldt near Garberville Comment
  RSA185429  Centaurium muehlenbergii Clare B. Hardham 1965-08 12858 Humboldt South fork of Eel River. Comment
  UC1116228  Cerastium glomeratum Joseph P. Tracy 1948-4-11 17964 Humboldt Eel R., S.Fork Station 48 Comment
  JEPS51348  Cerastium viride Mrs. M. H. Manning 1901-1 19 Humboldt near Hupa Comment
  UC478904  Cercis occidentalis Marcus E. Jones, A. M. 1931-7-16 28996 Humboldt e Arcata; Junction Comment
  UC492184  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1929-8-25 8661 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC492185  Cercocarpus betuloides var. betuloides Joseph P. Tracy 1929-4-14 8538 Humboldt between Miranda and Redway (South Fork of Eel River); North Coast Ranges, South Fork of Eel River 91 Comment
  SBBG56423  Chamaecyparis lawsoniana M. Van Rensselaer 1938-3-31 Humboldt Humboldt County [no specific locality] Comment
  HSC55266  Chamerion angustifolium subsp. circumvagum Overton, Butler 1979-8-2 12631 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC68266  Cheilanthes gracillima Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC70802  Cheilanthes gracillima Gail Newton 1980-7-24 1780 Humboldt Near Somes Mtn. 1615 Comment
  UC503061  Cheilanthes gracillima Joseph P. Tracy 1932-7-17 10683 Humboldt head of Devil's Hole; Klamath Mts, Trinity Summit 1828 Comment
  RSA273388  Chenopodium botrys Thomas W. Nelson, Jane P. Nelson 1977-9-3 3724 Humboldt Along Forest Service Rd. to north of Alder Springs. 1524 Comment
  HSC45428  Chimaphila menziesii Thomas W. Nelson, Jane Nelson 1977-6-19 3501 Humboldt Along ridge N of pond above Alder Springs 1585 Comment
  UC21649  Chimaphila menziesii J. Burtt Davy 1899-6-18 5620 Humboldt Bald Mt. near Korbel; Bald Mt. Comment
  UC154039  Chimaphila umbellata Joseph P. Tracy 1908-6 2879 Humboldt opposite Buck Mt.; Northern Coast Ranges, valley of Van Duzen R. 762 Comment
  CAS-BOT-BC451494  Chimaphila umbellata Milo S. Baker 1947-8-10 11899 Humboldt 15 mi. NE of Hoopa near end of forest road 1371 Comment
  RSA167191  Chrysanthemum segetum Joseph P. Tracy 1950-6-17 18831 Humboldt At Eureka. Comment
  CAS-BOT-BC36482  Chrysolepis chrysophylla Doris K. Kildale 1926-8-20 2570 Humboldt Bald Hills, east end of prairie near Tomlinson's 716 Comment
  CAS-BOT-BC30125  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1934-8-29 13641 Humboldt Northern Coast Ranges. South Fork Mountain, along summit near Blake lookout 1706 Comment
  HSC8064  Chrysolepis sempervirens J. P. Tracy, H. E. Parks 1941-8-28 11541 Humboldt South Fork; Blake Lookout Area 1768 Comment
  UC667993  Chrysolepis sempervirens Joseph P. Tracy 1937-7-29 15583 Humboldt summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  UC1222141  Cicendia quadrangularis Joseph P. Tracy 1951-5-6 19397 Humboldt Carlotta; flat by old Strong's District School House, 5 mi e of town 60 Comment
  UC164825  Cichorium intybus Joseph P. Tracy 1907-6-20 2572 Humboldt Northern Coast Region; vicinity of Eureka Comment
  UC1197342  Cicuta douglasii Joseph P. Tracy 1936-8-17 15154 Humboldt 2 mi s of Fields Landing (around Humboldt Bay, Salmon Creek Flats); Northern Coast Region, Humboldt Bay, Salmon Creek Flats 6 Comment
  UC642241  Cicuta douglasii Joseph P. Tracy 1927-9-25 8379 Humboldt 2 mi s of Field's Landing (near Still Ranch) 6 Comment
  UC154047  Cicuta douglasii Joseph P. Tracy 1907-7-20 2597 Humboldt Region about Humboldt Bay, Northern Coast Region Humboldt Bay; Northern Coast Region, Humboldt Bay 0 Comment
  UC154219  Cicuta douglasii Joseph P. Tracy 1907-7-20 2597 Humboldt Region about Humboldt Bay, Northern Coast Region Humboldt Bay; Northern Coast Region, Humboldt Bay 0 Comment
  HSC58382  Cinna latifolia Terry Griswold 1979-7-25 10857 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1784 Comment
  HSC76194  Cinna latifolia Overton, Butler 1979-8-2 12506 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC9490  Cinna latifolia D. E. Anderson 1965-9-5 4085 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  SEINET8726116 Image available Circaea alpina Unknown 1936-1 s.n. Humboldt Damp wooded bank of Yager creek at 2400 feet altitude, Humboldt County, California. 732 Comment
  HSC39165  Circaea alpina subsp. pacifica D. E. Anderson, J. P. Smith 1971-6-28 - 1238 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC98857  Circaea alpina subsp. pacifica Cara Witte 2008-7-30 974 Humboldt Forest Service Road 5N04. 1/4 mile east of intersection with Forest Service Road 4N70. 1583 Comment
  JEPS59311  Cirsium arvense W. L. Jepson 1936-8-12 17891 Humboldt South Fork of Eel River, Philipsville Comment
  RSA439196  Cirsium arvense M. B. Dunkle 1936-8-22 4859 Humboldt Williams Grove, Eel River 213 Comment
  CDA1114  Cirsium brevistylum T. R. Haig, T. C. Fuller 1959-6-12 2792 Humboldt 8 mi. N/ Trinidad. 0 Comment
  RSA125057  Cirsium brevistylum Peter H. Raven, R. Snow 1958-7-20 13648 Humboldt Along Titlow Hill Road 0.7 miles south of U. S. Hwy. 299 Comment
  RSA0070608  Cirsium douglasii var. douglasii Thomas W. Nelson 1976-7-9 2987 Humboldt Along 1S07 just west of summit. 1585 Comment
  SEINET5506147 Image available Cirsium douglasii var. douglasii John Thomas Howell 1937-7-31 13716 Humboldt 5 mi E of Berry Summit Comment
  UC1565808  Cirsium douglasii var. douglasii R. Spellenberg 1990-7-10 10253 Humboldt 1 mi w of Horse Mountain (7.5 air mi sw of Willow Creek county road 7K100, 4.5 mi s of Berry Summit (on Calif. Hwy. 299), extreme e edge of county) 1219 Comment
  UC249821  Cirsium douglasii var. douglasii Joseph P. Tracy 1924-7-6 6717 B Humboldt near Ruby Creek (on the Willow Creek Highway); Northern Coast Ranges 609 Comment
  UC1223056  Cirsium occidentale var. candidissimum Joseph P. Tracy 1942-8-9 17302 Humboldt at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  UC1223041  Cirsium remotifolium var. odontolepis Joseph P. Tracy 1949-8-11 18472 Humboldt 2 to 6 mi s from Grouse Mt. (e of headwaters of Redwood Creek, beginning where the electric power line crosses, and working south); Kinsey Ridge 1280 Comment
  SBBG25858  Cirsium vulgare D. Myrick 1966-8-16 1579 Humboldt Prairie Crk Redwoods State Park 152 Comment
  HSC11999  Cirsium vulgare D. La Conte 1970-7-11 27 Humboldt Comment
  HSC5385  Cirsium vulgare J. W. Johnson 1961-9-10 1113 Humboldt Arcata, S of Dune 3 N, Christenson Farm, Samoa Pennisula Comment
  RSA418966  Cirsium vulgare Lyman Benson 1928-7-12 417 Humboldt Weott Ranger Station, Seaward N. Coast Mt. Range, South Fork Eel River Watershed. 61 Comment
  UC56304  Clarkia amoena Joseph Burtt Davy 1899-6-16 5562 Humboldt Alton Comment
  UC1222854  Clarkia amoena Joseph P. Tracy 1951-6-30 19601 Humboldt Trinity Highway, at Berry's North Coast Ranges, Redwood Creek 274 Comment
  CAS-BOT-BC160972  Clarkia amoena subsp. amoena L. R. Abrams 1922-6-25 8105 Humboldt Cloverdale - Hopland Rd. Comment
  RSA226613  Clarkia amoena subsp. amoena Norman Dennis 1965-6-19 133 Humboldt 1/4 mile S and 1 mile E of the jct of Barry Ridge Road and the Eureka-Bridgeville country road, along Ashfield Ridge Road, 5 miles SE of Kneeland. 793 Comment
  RSA0059976  Clarkia amoena subsp. huntiana Harlan Lewis, M. Lewis 1947-6-12 424 Humboldt U.S. Highway 101, 4.8 miles north of Ohman Creek Bridge (4-07) Comment
  RSA12450  Clarkia amoena subsp. huntiana Carl B. Wolf 1934-6-30 5843 Humboldt Shelter Cove, 1 mile from ocean 30 Comment
  RSA23649  Clarkia amoena subsp. huntiana Carl B. Wolf 1939-7-8 9520 Humboldt Devil s Gate on road to Petrolia; 1 mile inland 152 Comment
  UC20317  Clarkia amoena subsp. whitneyi H. N. Bolander 1866-1 6534 Humboldt Shelter Cove; ; Shelter Cove, Humboldt Co. Comment
  CAS-BOT-BC164174  Clarkia concinna Doris K. Kildale 1927-5-17 3179 Humboldt Fish Creek near Garberville Comment
  HSC32093  Clarkia concinna subsp. concinna D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5700 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC63806  Clarkia concinna subsp. concinna M. A. Baker 1979-5-23 755 Humboldt Along Bair Rd., Hoopa Indian Reservation Comment
  UC184710  Clarkia davyi Joseph P. Tracy 1912-7-21 3771 Humboldt Alton Northern Coast Region 30 Comment
  POM214926  Clarkia purpurea subsp. purpurea Joseph P. Tracy 1932-6-26 10264 Humboldt North Coast Ranges: Valley of South Yager Creek 762 Comment
  CAS-BOT-BC172389  Clarkia purpurea subsp. viminea Doris K. Kildale 1927-6-25 3584 Humboldt Near Ettersburg Comment
  HSC74245  Claytonia exigua subsp. exigua M. A. Baker 1980-7-11 2806 Humboldt Near Red Mtn. 1433 Comment
  HSC67213  Claytonia exigua subsp. exigua Thomas W. Nelson, James Nelson 1980-6-10 5442 Humboldt Along branch road off Swayback Ridge Rd., 1/2 mi. E of junction 1372 Comment
  UC672985  Claytonia exigua subsp. glauca Joseph P. Tracy 1936-4-26 14801 Humboldt Kneeland Prairie 762 Comment
  UC161028  Claytonia rubra subsp. depressa Joseph P. Tracy 1911-5-21 3188 Humboldt Eureka; Northern Coast Region Comment
  HSC71810  Claytonia saxosa Thomas W. Nelson, Jane P. Nelson 1980-6-27 5952 Humboldt Six Rivers National Forest, saddle between two peaks E of Mt. Lassic 1768 Comment
  HSC17721  Claytonia sibirica V. G. Vieira 1963-4-24 5 Humboldt Essex Pond Comment
  HSC48826  Claytonia sibirica Brad Klipfel, J. O. Sawyer, J. P. Smith 1973-5-27 39 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  RSA271707  Claytonia sibirica Jane Turner, Francis M. Ball 1962-7-9 1133 ` Humboldt Redwood forest, beside scenic rdwood Hwy 2 miles S of jct with freeway, 40 miles N of Mendocino-Humboldt County line Comment
  UC412615  Claytonia sibirica Mrs. M. H. Manning Humboldt near Hupa Comment
  CAS-BOT-BC443888  Claytonia sibirica Ynez Whilton Winblad 1941-6-25 s.n. Humboldt Between Garberville and Pepperwood Comment
  UC161049  Claytonia sibirica Joseph P. Tracy 1911-7-5 3326 Humboldt near mouth of Willow Creek (along Willow Creek, tributary of Trinity River); Northern Coast Ranges, Trinity River 304 Comment
  HSC97313  Claytonia sibirica var. bulbifera Michael Mesler 2007-6-9 760 Humboldt Near Grouse Mountain; 1.0 mi. east of NF1 on Forest Service Road 5N04 1555 Comment
  HSC24332  Claytonia washingtoniana C. E. Fellows 1970-4-19 257 Humboldt 4.5 mi. S of Orick, 1/4 mi. E of Hwy. 101 on old Hwy. 101 Comment
  JEPS60566  Clematis ligusticifolia Lincoln Constance 1934-6-18 898 Humboldt near S. Fork R.R. Station & P.O (border of N. Dyerville Flat); Bull Creek Region, W. Fork Eel R. Comment
  HSC14387  Clinopodium douglasii David Adams 1960-7-17 Humboldt 2 miles S of Samoa 3 Comment
  SEINET12047068  Clintonia andrewsiana F. H. Utech, Utech, C. L. 1972-1 72 -609 Humboldt Humboldt Redwoods State Park, Bull Creek Flats area 213 Comment
  CAS-BOT-BC499963  Clintonia uniflora Doris Kildale 1931-5-10 10688 Humboldt Snow Camp Comment
  SBBG27286  Collinsia grandiflora H. E. Parks, J. P. Tracy 1930-5-25 741 Humboldt Laribee Valley (Larabee Valley) 762 Comment
  UC1196764  Collinsia grandiflora Harley P. Chandler May 1901 1251 Humboldt Redwood Belt; North Coast Ranges 457 Comment
  UC198607  Collinsia grandiflora Joseph P. Tracy 1913-1 4777 Humboldt at Dinsmore's (in Van Duzen Valley); North Coast Ranges 762 Comment
  RSA46692  Collinsia greenei Doris K. Kildale 1938-6-5 15393 Humboldt Horse Mountain 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
  HSC97484  Collinsia parviflora Cara Witte 2007-5-21 57 Humboldt Board Camp Mountain. 1/2 mile south of intersection with 4N38 and National Forest 1. 1427 Comment
  HSC31203  Collinsia rattanii D. E. Anderson 1972-6-20 5744 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  JEPS6171  Collinsia rattanii Joseph P. Tracy 1925-5-30 7032 1/2 Humboldt Laribee Valley; North Coast Ranges 701 Comment
  HSC48992  Collinsia rattanii M. A. Baker 1979-5-23 757 Humboldt Comment
  UC1197856  Collomia grandiflora Joseph P. Tracy 1933-8-30 13051 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC32261  Collomia heterophylla J. O. Sawyer 1970-6-24 2250 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  UC1197851  Collomia heterophylla Joseph P. Tracy 1911-6-4 3225 Humboldt along river 5 mi from coast; Northern Coast Region, Little River 121 Comment
  UC1197841  Collomia heterophylla Joseph P. Tracy 1940-7-7 16668 Humboldt rocky bank Grouse Mt. 1463 Comment
  UC1197846  Collomia heterophylla Joseph P. Tracy 1906-5-6 2442 1/2 Humboldt near Hydesville; Northern Coast Region, Wolverton Gulch 60 Comment
  UC978533  Collomia tracyi Joseph P. Tracy 1927-6-12 8161 Humboldt in slide rock Northern Coast Ranges, Horse Mountain 1066 Comment
  UC1197345  Conium maculatum Joseph P. Tracy 1933-8-22 12975 Humboldt at Eureka Eureka 6 Comment
  UC164847  Conyza canadensis Joseph P. Tracy 1911-7-9 3458 Humboldt near its mouth along Willow Creek; Northern Coast Ranges, Tributary of Trinity River, Willow Cr 182 Comment
  CAS-BOT-BC181546  Coptis laciniata Lincoln Constance; Reed C. Rollins 1942-5-11 2868 Humboldt Three miles west of East Fork of willow Creek Comment
  CAS-BOT-BC133717  Corallorhiza Doris Kildale 1931-6-6 10868 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  HSC73022  Corallorhiza maculata Gail Newton 1980-8-10 2028 Humboldt Near Blake Mtn. 1798 Comment
  UC1196460  Corallorhiza mertensiana Joseph P. Tracy 1918-6-23 4960 Humboldt near Boynton Prairie; Northern Coast Ranges, around Humboldt Bay 304 Comment
  HSC95574  Cordylanthus maritimus subsp. palustris Andrea Pickart 2002-7-19 177 Humboldt Arcata Marsh at end of I St. 0 Comment
  UC582562  Cordylanthus tenuis subsp. viscidus Joseph P. Tracy 1924-7-20 6735 Humboldt on road between Willow Creek and Three Creeks; Koby Ranch 609 Comment
  CAS-BOT-BC101075  Coreopsis lanceolata Henry M. Pollard 1948-7-27 s.n. Humboldt Barker Ranch on Red Cap Creek, near Orleans Comment
  SEINET7836966 Image available Corethrogyne filaginifolia J. B. Davy 1899-6-30 6185 Humboldt Near Ferndale Comment
  RSA0019463  Cornus Doris K. Kildale 1937-8-29 15081 Humboldt Dinsmore's. Comment
  HSC6408  Cornus nuttallii John A. Dubois 1962-5-12 8 Humboldt 20 mi. E of Arcata. Comment
  JEPS50171  Cornus nuttallii Lincoln Constance 1934-6-2 789 Humboldt ca. 1/2 mi. w. of its mouth Bull Creek; Bull Creek Region, S. Fork Eel R. Comment
  RSA697172  Cornus nuttallii J. R. Bruff 1937-8-17 919 Humboldt Richardson Grove. Comment
  CAS-BOT-BC210535  Cornus sessilis Doris K. Kildale 1926-8-15 2507 Humboldt Willow Creek, near its junction with the Trinity River 152 Comment
  CDA1906  Cortaderia jubata T. C. Fuller 1966-10-4 15238 Humboldt Northwestern; Outer North Coast Ranges region; 1100 acres, slope N above headquarters of Georgia Pacific Lumber Co. 0 Comment
  UC146107  Corylus californica Joseph P. Tracy 1906-6-24 2500 Humboldt Humboldt Hill, S side North Coast Region, region about Humboldt Bay 0 Comment
  CAS-BOT-BC180303  Corylus cornuta subsp. californica Joseph P. Tracy 1949-8-11 18486 Humboldt near Snow Camp (1 1/2 mi SE) 1341 Comment
  HSC41319  Corylus cornuta subsp. californica Brad Klipfel 1974-9-2 528 Humboldt Horse Mtn. Comment
  UC1192141  Cotula coronopifolia Malcolm A. Nobs, S. Galen Smith 1949-8-3 1163 Humboldt 1 mi s of Fields Landing; Eel River Valley Comment
  UC1199279  Cotula coronopifolia Joseph P. Tracy 1922-5-28 6058 Humboldt Little River Beach North Coast Ranges. Little River Beach 6 Comment
  UC166068  Cotula coronopifolia J. P. Tracy 1903-8-9 1948 Humboldt immediate vicinity of Eureka 0 Comment
  POM264509  Cotula coronopifolia H. E. Parks 1941-09 24211 Humboldt Little River State Park Comment
  SFV18508  Cotula coronopifolia D. Graydon 2002-5-7 40 Humboldt Arcata. Path to McDaniel Slough. Along path to the Humboldt Bay. Comment
  HSC97308  Crataegus suksdorfii M. Mesler 2006-6-6 610 Humboldt Big Hill Rd. 11.4 mi. E of Hwy. 96 at Six Rivers Forest boundary 1463 Comment
  POM126151  Crataegus suksdorfii Joseph P. Tracy 1922-6-18 6097 Humboldt Valley along head of S Yoga Creek. 762 Comment
  OBI77435  Crepis acuminata David J. Keil 1983-7-2 17326 Humboldt Horse Mtn Summit SW of Willow crk Comment
  UC1787277  Crepis capillaris G. K. Helmkamp, E. A. Helmkamp 2001-7-8 6998 Humboldt North coastal strand.: North spit of Samoa Peninsula, 0.5 mi N of CA-225 bridge over Humboldt Bay. 6 Comment
  CAS-BOT-BC376474  Crepis pleurocarpa Joseph P. Tracy 1935-7-28 14332 Humboldt Trinity Summit. Head of Brett Hole 1828 Comment
  HSC5462  Crocidium multicaule D. H. Norris 1969-3-1 2272 Humboldt Along Trinity River at Norton Creek, ca. 4 mi. N of Hoopa Comment
  UC249531  Crocidium multicaule Joseph P. Tracy 1922-5-29 6075 Humboldt Sout Yager Creek Valley 762 Comment
  SEINET10529035  Crocosmia aurea Charlene A. Bennett 1976-8-6 Bennett 477 Humboldt Collected by hwy. 101, N side of orick. Rocky area, densely forested by river 30 Comment
  HSC7973  Croton setiger H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  UC1103236  Crypsis vaginiflora Joseph P. Tracy 1940-10-17 16773 Humboldt near Dyerville (river bar); Eel River, Camp Grant 48 Comment
  HSC58047  Cryptantha affinis G. L. Clifton, Griswold 1979-8-1 11906 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  UC1239663  Cryptantha affinis Joseph P. Tracy 1939-8-5 16386 Humboldt Dinsmore's 737 Comment
  UC175691  Cryptantha flaccida Joseph P. Tracy 1908-6 2758 Humboldt opposite Buck Mountain (at Little Van Duzen Bridge); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CHSC10140  Cryptantha leiocarpa J. W. Johnson 1962-4-10 1237 Humboldt Arcata. West slope of Ridge 3 behind the foredunes. Christenson Farm, Samoa Penisula. Comment
  UC175791  Cryptantha torreyana Joseph P. Tracy 1909-8-1 3071 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC55165  Cryptogramma acrostichoides Gilbert Muth 1979-8-1 12155 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC82604  Cryptogramma acrostichoides Thomas W. Nelson 1979-7-11 4990 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  SEINET10569434  Cupressus Mary Susan Taylor 1990-8-22 Taylor 6086 Humboldt Cypress Grove Area, Samoa Peninsula, along strand, Eureka. Comment
  UC1076384  Cupressus lawsoniana H. L. Mason 1932-7-21 7111 Humboldt on road Arcata to Weaverville (e slope of Southfork Mts.); Southfork Mts. Comment
Read comments Jul 25 2018
  UC906743  Cuscuta californica Joseph P. Tracy 1947-7-5 17777 Humboldt 1 mi w Mud Springs; Trinity Summit 1158 Comment
  HSC98890  Cuscuta californica var. californica Cara Witte 2008-8-5 987 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1589 Comment
  HSC95576  Cuscuta pacifica var. pacifica Andrea Pickart 2002-8-8 190 Humboldt Arcata Marsh at end of I st. 0 Comment
  UC1222263  Cynoglossum grande Joseph P. Tracy 1949-6-20 18314 Humboldt 6 mi. s.e. Arcata (Fickle Hill); Fickle Hill 609 Comment
  UC175683  Cynoglossum occidentale Joseph P. Tracy 1911-7-7 3424 Humboldt near summit Brannan Mt. (ridge n. of Willow Creek, between Willow and Campbell Creeks); Northern Coast Ranges, Brannan Mt. 1219 Comment
  UCD60168  Cynosurus echinatus J. I. Mallory 1955-6-7 114 Humboldt North end of Luke Prairie. 350 Comment
  UC213325  Cyperus bipartitus Joseph P. Tracy 1920-8-15 5366 Humboldt Klamath R. at mouth of Bluff Creek; Northern Coast Ranges, Klamath R. 152 Comment
  UC668029  Cyperus bipartitus Joseph P. Tracy 1931-9-7 9664 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UC668030  Cyperus bipartitus Joseph P. Tracy 1938-8-14 16113 Humboldt slopes w. of its mouth S. Fork Trinity R. 304 Comment
  HSC97544  Cyperus eragrostis Ivy Watson 2008-10-5 40 Humboldt Blue Lake; ~ 500 ft. upstream of the Hatchery Rd. bridge, north bank. 22 Comment
  UC535738  Cyperus eragrostis Eleanor Armstrong 1157 Humboldt Richardson Grove Comment
  UC668034  Cyperus eragrostis Joseph P. Tracy 1935-5-25 13836 Humboldt Fort Seward 106 Comment
  HSC38833  Cyperus eragrostis R. Sutherland 1976-8-6 15 .6876 Humboldt 223 Comment
  UC668035  Cyperus eragrostis Joseph P. Tracy 1932-10-30 10897 Humboldt Alton to Fortuna (Eel R.); Eel R. 15 Comment
  HSC54855  Cystopteris fragilis G. L. Clifton, Griswold 1979-7-25 10750 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  SDSU10150  Cytisus scoparius Leslie Hickson 1990-4-15 15 IV90C Humboldt Oak Street across the road from the Freshwater park entrance. Eureka. Comment
  HSC9540  Dactylis glomerata E. W. Styskel 1964-4-12 64 Humboldt Corner of Center Street and Hwy. 101 in Rio Dell. Comment
  SBBG34665  Dactylis glomerata T. L. Secrest 1948-6-29 Humboldt southern Humboldt County [no specific locality] Comment
  CAS-BOT-BC189739  Danthonia californica Joseph P. Tracy 1935-5-25 13853 Humboldt Fort Seward. 106 Comment
  HSC1967  Danthonia californica William J. Ferlatte, B. D. Rogers 1966-6-15 2108 Humboldt Larabee Valley 762 Comment
  UC183807  Danthonia californica Joseph P. Tracy 1911-7-7 3385 Humboldt 3 mi nw junction of Willow Creek with Trinity River (meadows on mountain side, near Beebe's Ranch); Northern Coast Ranges 914 Comment
  CAS-BOT-BC194415  Danthonia intermedia Joseph P. Tracy 1935-7-25 14231 Humboldt Open places at McKay Prairie, Trinity Summit 1584 Comment
  HSC98100  Danthonia unispicata Cara Witte 2007-6-20 306 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  CAS-BOT-BC420365  Darmera peltata Duart V. Brown 1947-3-24 5 Humboldt 3 miles N of Willow Creek on W bank of Trinity River Comment
  UC204116  Darmera peltata Joseph P. Tracy 1918-5-27 4934 Humboldt foot of Grouse Mt. (Redwood Creek); Northern Coast Ranges 457 Comment
  UC1198471  Datisca glomerata Joseph P. Tracy 1912-8-3 3972 Humboldt in Valley of Van Duzen River (opposite Buck Mountain, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  CHSC26758  Daucus carota M. S. Taylor 1977-8-5 1432 Humboldt Around bridge over Eeel River, at turnoff from Hwy 101 to Ferndale, in Fernbridge. Comment
  HSC38897  Daucus pusillus J. P. Smith 1973-5-26 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC38938  Daucus pusillus Linda M. Barker 1976-5-13 1486 Humboldt 3 mi. W of Arcata. Comment
  UC1197352  Daucus pusillus Joseph P. Tracy 1901-8-2 1248 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC32464  Daucus pusillus Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  UC1197347  Daucus pusillus Joseph P. Tracy 1911-7-5 3305 Humboldt along Willow Creek (a tributary of Trinity R.) near its mouth Willow Creek; Northern Coast Ranges, Willow Creek 182 Comment
  UC1196322  Delphinium decorum subsp. decorum J. P. Tracy 1904-5-1 2044 Humboldt bluff back of Bucksport; immediate vicinity of Eureka 0 Comment
  UC1196318  Delphinium decorum subsp. decorum Joseph P. Tracy 1914-5-3 4418 Humboldt bluff s of Bucksport (vicinity of Eureka); Northern Coast Region 0 Comment
  CAS-BOT-BC9032  Delphinium decorum subsp. tracyi Doris K. Kildale 1928-5-19 5213 Humboldt Chalk Mountain Comment
  CHSC97961  Delphinium decorum subsp. tracyi Kaylea Eickhoff; Cara M. Witte 2005-6-15 12 Humboldt 14.1 miles south of Hwy. 299 on NF1, 0.25 miles NE of Grouse Mountain. Rocky serpentine outcrop. UTM 0444876, 4511301. 1400 Comment
  UCR139078  Delphinium decorum subsp. tracyi J. Cromwell, A. Thoele, J. Schneider 1994-5-6 050 Humboldt Six Rivers National Forest. On Titlow Road 0.4 mi south of Hwy 299 intersection 875 Comment
  POM172673  Delphinium decorum subsp. tracyi Joseph P. Tracy 1913-6-17 4148 Humboldt Burr Valley, on NW slope of Buck Mtn Comment
  JEPS23382  Delphinium hesperium subsp. hesperium Milo S. Baker 1923-7-20 31 Humboldt head of Yager Creek Comment
  UC160927  Delphinium hesperium subsp. hesperium Harley P. Chandler May 1901 1252 Humboldt Redwood Belt North Coast Ranges 152 Comment
  CAS-BOT-BC9961  Delphinium nudicaule Doris K. Kildale 1926-3-21 1582 Humboldt Kneeland Prairie 762 Comment
  SEINET12099565  Delphinium nudicaule J. P. Tracy 1950-1 18815 Humboldt Mail Ridge, N of Harris 7 mi, "Huestis Rock" on NE side of Ridge Comment
  UCSB28370  Delphinium nudicaule Phelps, M. 1972-3-19 Humboldt 0.4 mi. east of Elk Point; near Basin Creek; Somerville Ranch; Garberville 457 Comment
  HSC48786  Delphinium trolliifolium Brad Klipfel 1975-6-17 661 Humboldt Along Titlow Hill Rd. Comment
  UC1222575  Delphinium trolliifolium Joseph P. Tracy 1951-6-26 19559 Humboldt halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road) Twin Lakes Comment
  UC1334518  Delphinium trolliifolium G. A. L. Mehlquist and J. A. Jenkins 1940-5-29 9 Humboldt 1 1/2 mi n Kneeland Comment
  CAS-BOT-BC121965  Delphinium trolliifolium Mrs. H. C. Cantelow 1941-4-19 s.n. Humboldt 8.4 miles SW of Ferndale on road to Cape Mendocino. Comment
  HSC45269  Delphinium trolliifolium M. Alcasas 1978-6-3 122 Humboldt Titlow Hill Rd. 0.8 mi. from Hwy. 299 1113 Comment
  CAS-BOT-BC16944  Delphinium variegatum subsp. variegatum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC9584  Deschampsia cespitosa C. B. Wolf 1927-8-22 794 Humboldt Big Lagoon Comment
  HSC102102  Deschampsia elongata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1005 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC38482  Deschampsia elongata Harley P. Chandler May, 1901 1175 b Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 54 Comment
  SEINET3927555  Deschampsia elongata J. O. Sawyer, R. J. Cole 1977-7-3 3019 Humboldt Hoopa quad. Envorons of Mud Spring. Big Hill Road (F. S. 8N01).; 0 1524 Comment
  UC1196302  Dicentra formosa Joseph P. Tracy 1947-8-24 17914 Humboldt near Box Camp (Trinity Summit); Trinity Summit 1524 Comment
  UC1196307  Dicentra formosa Joseph P. Tracy 1920-4-18 5315 Humboldt near Glendale (Mad River, around Humboldt Bay); Northern Coast Region, Humboldt Bay, Mad River 30 Comment
  CAS-BOT-BC402404  Dicentra formosa subsp. formosa Doris Kildale Gillespie 1931-6-7 10657 Humboldt South Fork Mt., Blake Lookout Comment
  CAS-BOT-BC402539  Dicentra pauciflora Joseph P. Tracy 1933-7-11 12691 Humboldt North Coast Ranges. Grouse Mountain 1524 Comment
  HSC48032  Dichelostemma capitatum subsp. capitatum Brad Klipfel 1974-5-27 406 Humboldt Horse Mtn. Comment
  HSC3029  Dichelostemma ida-maia S. Estes 1964-4-25 52 Humboldt May Ranch, 2 mi. N of Bridgeville 305 Comment
  HSC60039  Dichelostemma ida-maia M. A. Baker 1978-5-6 495 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  HSC3032  Dichelostemma ida-maia Francis Winter 1960-5-7 Humboldt 1.0 mi. S of Tish-Tang Boy Scout Camp entrance 244 Comment
  UC1950249  Dichelostemma ida-maia Barbara Ertter with Thomas J. Delendick 1987-5-16 6918 Humboldt Vista Point just W of Berry Summit on Hwy 299, open grassy S-facing slope Comment
  UCSB22162  Dichelostemma ida-maia Keefe, Joseph 1967-7-8 Humboldt Avenue of the Giants, 2.4 miles north of Miranda 121 Comment
  SD90195  Digitalis purpurea Benjamin C. Stone 1952-6-25 137 Humboldt 15 miles south of Klamath. 14 Comment
  UC535744  Digitalis purpurea Eleanor Armstrong 1174 Humboldt Richardson Grove Comment
  SEINET12269089  Digitalis purpurea K. S. Erdman 1970-1 4770 Humboldt Counts Hill Prairie on Bald Hill Rd Se of Orick 13 mi 853 Comment
  UC1103231  Digitaria sanguinalis Joseph P. Tracy 1934-8-14 13579 Humboldt 1 mi above mouth South Fork of Eel River; North Coast Ranges, South Fork of Eel River 60 Comment
  POM118601  Disporum smithii Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC30078  Disporum smithii Mrs. M. H. Manning 1901-4-1 12 Humboldt near Hupa Comment
  RSA68743  Disporum smithii Victor Duran 1933-5-12 3413 Humboldt Bull Creek, at South Fork of the Eel River Comment
  CDA18241  Distichlis spicata G. D. Barbe, T. C. Fuller 1974-6-19 1879 Humboldt North Coast Ranges; Mad River mouth, beach S of river, at end of Iversen Lane, Tyee City. 7 Comment
  HSC90953  Distichlis spicata Leonel Arguello 1989-7-15 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, Saltmarsh trail. Comment
  RSA93304  Downingia elegans var. corymbosa F. W. Peirson 1923-7-10 3871 Humboldt Wood border opening near road about 6 miles N of Garberville Comment
  UC1199180  Draba verna Joseph P. Tracy 1931-3-26 9290 Humboldt along Van Duzen River (Alton); North Coast Ranges, along Van Duzen River 30 Comment
  UC154520  Drymocallis glandulosa var. reflexa Harley P. Chandler June, 1901 1425 Humboldt Klamath River North Coast Ranges, Klamath River 243 Comment
  UC492182  Drymocallis glandulosa var. wrangelliana Joseph P. Tracy 1927-5-30 8088 Humboldt Briceland Northern Coast Ranges, Briceland 182 Comment
  UC492180  Drymocallis rhomboidea Joseph P. Tracy 1927-5-14 8002 Humboldt near South Fork Trinity River (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  SEINET6424295 Image available Dryopteris dilatata Hicks, Carpenter 1977-7-12 Humboldt Prairie Creek State Park Comment
  CAS-BOT-BC71056  Dryopteris expansa Doris K. Kildale 1928-12-23 6761 Humboldt on Orick - Bald Hills road Comment
  HSC23414  Dryopteris expansa Mary Spindler, Roger Bucholtz 1971-11-18 126 Humboldt H.S.C. Campus SW side of Home Ec. under wooden stairway Comment
  CAS-BOT-BC113438  Eleocharis bella Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans region. Comment
  CHSC33040  Eleocharis macrostachya Thomas Nelson 1977-9-22 3749 Humboldt In drainage ditch along east side of State Route 101 just north of the Eureka Airport. Comment
  CAS-BOT-BC112838  Eleocharis macrostachya David Daniels Keck 1938-8-5 4768 Humboldt Big Lagoon, on shore in drying clay mud. Comment
  HSC96564  Eleocharis pachycarpa Gordon Leppig 1997-8-3 648 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  CAS-BOT-BC113206  Eleocharis parishii Doris K. Kildale 1927-7-3 3664 Humboldt Willow Creek Flat, swampy outflow from spring. Comment
  HSC7346  Eleocharis parvula D. E. Anderson 1961-9-9 1791 Humboldt Along S end of Hwy. 101 causeway over Big Lagoon Comment
  CDA31707  Elymus glaucus Russell Graham Aug 1960 Humboldt Near Weitchpec 0 Comment
  UC212860  Elymus glaucus Joseph P. Tracy 5282 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  SEINET11683186  Elymus glaucus K. S. Erdman 1970-1 4849 Humboldt Redwood National Park, Redwood Creek, about 2-3 mi above the road end, near McArthur & Elam Creeks Comment
  UC1146679  Elymus glaucus Freed W. Hoffman 1946-5-19 1729 Humboldt Mattole River North Coast Ranges 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
  HSC99111  Elymus lanceolatus subsp. lanceolatus Cara Witte 2007-6-14 273 Humboldt Along National Forest 1. Near Kinsey Ridge and cattle guard. 3 miles north of intersection with 4N09. 1393 Comment
  HSC10936  Elymus mollis subsp. mollis J. W. Johnson 1962-4-29 1297 Humboldt W.M Lanphere Farm, Samoa Peninsula, Arcata. Comment
  HSC38942  Elymus mollis subsp. mollis Linda M. Barker 1976-6-1 1563 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC98925  Elymus multisetus Cara Witte 2008-7-30 969 Humboldt Forest Service Road 4N32. 1/2 mile north of intersection with Forest Service Road 4N32B. 1417 Comment
  UC187090  Elymus multisetus Joseph P. Tracy 1908-6 2691 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UCD62495  Elymus multisetus A. H. Murphy 1951-6-13 64 Humboldt Along Eel River at Fort Seward. Comment
  CAS-BOT-BC204332  Elymus trachycaulus subsp. trachycaulus David D. Keck 1944-7-11 5491 Humboldt 3 mi. N. E. of Capetown 152 Comment
  CAS-BOT-BC229147  Empetrum nigrum Gary S. Lester 1975-4-6 604 Humboldt Megwil Point on Elk Head, north of Trinidad. Trinidad State Beach 15 Comment
  UC1541559  Epilobium H. E. and S. T. Parks July 1937 24050 Humboldt Spruce Cove Trinidad 64 Comment
  UC1222844  Epilobium brachycarpum Joseph P. Tracy 1950-9-10 19355 Humboldt Bear River Ridge 609 Comment
  UC562421  Epilobium brachycarpum Joseph P. Tracy 1933-8-6 12942 Humboldt French Camp Ridge 1066 Comment
  HSC32528  Epilobium brachycarpum Thomas W. Nelson, Jane P. Nelson 1973-9-3 1136 Humboldt Just E of Dinsmore beside Hwy. 36 Comment
  UC183663  Epilobium brachycarpum Joseph P. Tracy 1913-8-1 3959 Humboldt opposite Buck Mountain; Northern Coast Ranges, Dinsmore's Ranch, valley of Van Duzen 762 Comment
  UC198621  Epilobium brachycarpum Joseph P. Tracy 1917-9-3 4855 Humboldt Janes Ranch Northern Coast Ranges, Grouse Mt. (lower w slopes) 914 Comment
  UC668304  Epilobium campestre Joseph P. Tracy 1938-7-5 16010 Humboldt 5 mi e Carlotta; Strong's District School House 45 Comment
  UC668305  Epilobium campestre Joseph P. Tracy 1938-7-5 16009 Humboldt 5 mi e Carlotta; Strong's District School House 45 Comment
  UC1197010  Epilobium ciliatum subsp. ciliatum J. P. Tracy 1909-9-19 3098 Humboldt opp. Eureka (ocean beach); Samoa Comment
  HSC27041  Epilobium ciliatum subsp. ciliatum Brad Klipfel 1973-8-25 288 Humboldt Near Lazy L Ranch, Fickle Hill Rd. Comment
  POM249603  Epilobium ciliatum subsp. ciliatum C. L. Hitchcock, J. P. Martin 1939-7-14 5441 Humboldt 7 miles east of Shelter Cove Comment
  RSA225519  Epilobium ciliatum subsp. ciliatum P. A. Munz 1936-8-13 14380 Humboldt 10 miles west of Willow Creek. Comment
  HSC98058  Epilobium densiflorum Cara Witte 2007-7-17 543 Humboldt White Oak Opening 1257 Comment
  HSC103434  Epilobium densiflorum Thomas W. Nelson, Dick Brummitt, Barbara Ertter 2004-6-7 9279 Humboldt Along Kneeland Rd., 2 mi. from junction with Maple Creek Rd. 671 Comment
  HSC55085  Epilobium hornemannii G. L. Clifton, Griswold 1979-7-31 11749 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  BLMAR178  Epilobium minutum Donald Hazlett 1994-6-7 178 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC73789  Epilobium minutum Gail Newton 1980-6-28 704 Humboldt Near Mad River Butte. 1536 Comment
  HSC96280  Epilobium minutum Eric Schori, Kazuyuki Ishimaru 2005-6-15 13 Humboldt About 18 mi. S of Hwy. 299 1400 Comment
  UC160414  Epipactis gigantea Chesnut and Drew 1888-8-2 Humboldt Grouse Creek Comment
  UC667937  Equisetum arvense Joseph P. Tracy 1937-7-2 15391 Humboldt ne of Hawkins Bar Happy Camp Mt.; Trinity Summit Range 1280 Comment
  UC62558  Equisetum hyemale subsp. affine P. E. Goddard July 1901 88 Humboldt Hupa Comment
  HSC76320  Equisetum telmateia subsp. braunii Teresa Prendusi 1981-7-23 348 Humboldt Near Black Mtn. 890 Comment
  HSC82219  Equisetum telmateia subsp. braunii Paul Wilson 1986-9-16 1053 Humboldt From jct. of Hwy. 101 at Arcata, 1.5 mi. E on Hwy. 299 to bridge 4-36R crossing the Mad River, then upriver about 100 m 30 Comment
  HSC93222  Equisetum telmateia subsp. braunii Gordon Leppig 1998-3-9 714 Humboldt Arcata, West End Rd., 0.3 mi. W of Ericson Way 30 Comment
  POM118344  Equisetum telmateia var. braunii Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  RSA183500  Equisetum telmateia var. braunii D. V. Sanford 1963-3-23 23 Humboldt [no locality information provided] Comment
  CDA4547  Erechtites glomeratus M. A. Hart 1957-8-9 157 -57 Humboldt Between Eureka and Areata. 0 Comment
  RSA95039  Erechtites minimus F. W. Peirson 1923-7-10 3926 Humboldt A few miles from Garberville. Comment
  CDA5472  Erica lusitanica T. C. Fuller 1961-3-22 5938 Humboldt North slope, Humboldt Hill, Eureka. 0 Comment
  UC1199413  Ericameria nauseosa var. speciosa Joseph P. Tracy 1935-7-30 14360 Humboldt Salmon Summit 1767 Comment
  CAS-BOT-BC293488  Erigeron aliceae Joseph P. Tracy 1937-8-12 15660 Humboldt Snow Camp 1402 Comment
  UC1199409  Erigeron biolettii Joseph P. Tracy 1933-9-9 13076 Humboldt along river near Garberville; South Fork Eel River 152 Comment
  HSC34700  Erigeron foliosus var. confinis Thomas W. Nelson 1974-8-24 1703 Humboldt Below Hwy bridge over Klamath River Comment
  JEPS11982  Erigeron foliosus var. confinis Rimo Bacigalupi with G. T. Robbins 1954-6-28 4653 Humboldt 4.6 mi s Weitchpec, Hoopa Valley Indian Reservation (between Hoopa Valley and Weitchpec, along highway, high above Trinity River); Trinity River 167 Comment
  JEPS41520  Erigeron foliosus var. mendocinus Lincoln Constance 1934-5-29 720 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region, Upper Look Prairie 365 Comment
  CAS-BOT-BC308850  Erigeron glaucus W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  BLMAR118  Erigeron glaucus Jennifer Anthony-Wheeler 1995-4-4 118 Humboldt King range, growing on beach dunes S of 1st arch fence exclosure 6 Comment
  HSC89429  Erigeron glaucus P. A. Daly 1984-6-16 31 Humboldt Open bluffs of Trinidad Head trail 61 Comment
  HSC97707  Erigeron maniopotamicus Thomas W. Nelson, James Nelson 1980-6-10 5395 Humboldt Jack Rabbit Valley, along Swayback Ridge 4-wheel drive road, 1 mi. S of junction with Forest Service road 1494 Comment
  CAS-BOT-BC214579  Erigeron philadelphicus W. R. Dudley 1899-6-19 s.n. Humboldt Scotia Comment
  UCR179384  Erigeron philadelphicus Katherine Esau 1935-5-22 s.n. Humboldt Fort Seward 152 Comment
  JEPS82129  Erigeron philadelphicus var. philadelphicus Rimo Bacigalupi 1959-7-7 7250 Humboldt immediately behind bluff headland (just n of road summit at this point); Cape Mendocino 30 Comment
  SDSU3945  Erigeron philadelphicus var. philadelphicus D. F. Howe 1963-7-8 3621 Humboldt 8.2 miles west of Bridgeville on Cal. 36, Van Duzen River. 91 Comment
  SEINET11851213  Erigeron strigosus J. P. Tracy 1950-1 19046 Humboldt Trinity River, E side, 1 mi N of mouth of Willow Creek Comment
  HSC54867  Eriogonum compositum G. L. Clifton, Griswold 1979-7-25 10779 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UCR37906  Eriogonum compositum D. K. Imper 1982-7-2 1411 Humboldt Near Connely Creek, N Fork 1493 Comment
  HSC26656  Eriogonum latifolium J. P. Smith 1971-10-6 4938 Humboldt End of Murray Rd. in McKinleyville. Comment
  POM232031  Eriogonum latifolium I. L. Wiggins 1930-7-11 4680 Humboldt Near Samoa Comment
  RSA393624  Eriogonum latifolium E. A. Purer 1932-7-27 4149 Humboldt Near Samoa, near Arcata Comment
  CAS-BOT-BC259534  Eriogonum luteolum var. luteolum Alice Eastwood 1921-7-21 10677 Humboldt Vanduzen [Van Duzen] River Comment
  CAS-BOT-BC259538  Eriogonum luteolum var. luteolum Joseph P. Tracy 1938-8-14 16120 Humboldt South Fork of Trinity River: mountain slopes west of its mouth 304 Comment
  UC1198143  Eriogonum nudum var. auriculatum Joseph P. Tracy 1938-6-17 15961 Humboldt s point of Cape Mendocino; Cape Mendocino 3 Comment
  BLMAR218  Eriogonum nudum var. nudum Jennifer Anthony-Wheeler 1996-7-9 218 Humboldt Pilots ridge., abundant found on dry open areas 1280 Comment
  OBI82417  Eriogonum nudum var. nudum Dennis Anderson, D Santana, J Lackey 1971-7-15 5265 Humboldt Trinity CO. : Along 1 SO 7, T 29 N, R 6 E, secs. 29, 30, along Shanty Creek, CA. 5 miles west of Ruth Dam. 1341 Comment
  UC6392  Eriogonum nudum var. oblongifolium Harley P. Chandler June, 1901 1442 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  SEINET11938136  Eriogonum nudum var. oblongifolium H. P. Chandler 1901-1 1442 Humboldt Klamath River 305 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
  CAS-BOT-BC267473  Eriogonum umbellatum Volney Rattan 1883-6-1 s.n. Humboldt Summit bet. Mad R. & Pilot Cr. Comment
  CDA22681  Eriogonum umbellatum var. nelsoniorum L. P. Janeway, B. Castro 1996-8-4 5060 Humboldt High North Coast Ranges; Along Titlow Hill Road (Road #1) about 0.3 mile west of the spur road to top of Horse Mountain. Comment
  HSC43084  Eriogonum umbellatum var. nelsoniorum Brad Klipfel 1973-8-3 300 Humboldt N Trinity Mtn. 1860 Comment
  SEINET10919209 Image available Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 Reveal 8345 Humboldt Along U.S. Forest Service Road 1 at south end of Whiting Ridge, about 0.5 air miles west-northwest of High Salt Ground and 9.3 air miles west of Hyampom, on serpentine outcrops in an open grassland. T.3N, R5W, sec. 20 NW1/4 of the SE1/4. 1295 Comment
  UC1980592 Image available Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8345 Humboldt Along U. S. Forest Service Road 1 at south end of Whiting Ridge, about 0.5 air miles west-northwest of High Salt Ground and 9.3 air miles west of Hyampom. Comment
Read comments Jun 19 2014
  HSC43085  Eriogonum umbellatum var. nelsoniorum Brad Klipfel 1973-7-1 146 Humboldt N Trinity Mtn. 1860 Comment
  HSC56960  Eriophorum crinigerum Overton, Butler 1979-7-23 9474 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  HSC98924  Eriophorum crinigerum Cara Witte 2007-5-24 116 Humboldt Horse Mountain Botanical Area. Along Forest Service Rd. 6N38. Near Horse Mountain Mine. 1284 Comment
  HSC48029  Eriophyllum lanatum Brad Klipfel 1974-6-25 425 Humboldt Horse Mtn. Comment
  RSA667295  Eriophyllum lanatum George K. Helmkamp, E. A. Helmkamp 2001-7-8 6991 Humboldt North coast redwood area: CA-36, along the Van Duzen R. 19.6 miles E of US-101 (W of Bar W Road) 137 Comment
  CAS-BOT-BC301009  Eriophyllum lanatum var. achilleoides Harley P. Chandler 1901-5-1 1234 Humboldt North Coast Ranges. Humboldt Bay 30 Comment
  JEPS34646  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1921-8-12 5934 Humboldt Big Lagoon Comment
  UC582676  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1935-6-23 13999 Humboldt French Camp Ridge 1066 Comment
  HSC98102  Eriophyllum lanatum var. grandiflorum Cara Witte 2007-6-20 311 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  CAS-BOT-BC301684  Eriophyllum lanatum var. lanceolatum Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  UC582675  Eriophyllum lanatum var. lanceolatum Joseph P. Tracy 1933-8-6 12936 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC301923  Eriophyllum staechadifolium W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  UC17110  Erodium moschatum J. P. Tracy 1899-4-16 150 Humboldt Eureka Comment
  HSC102063  Erysimum capitatum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 965 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC19420  Erysimum capitatum var. capitatum J. O. Sawyer 1968-9-11 731 Humboldt 1768 Comment
  SEINET200701 Image available Erythranthe cardinalis Joseph P. Tracy 1911-1 3480 Humboldt Tributary of Trinity River; along Willow Creek; near its mouth. 244 Comment
  JEPS501  Erythronium grandiflorum Joseph P. Tracy 1930-7-18 9037 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC15498  Erythronium oregonum subsp. leucandrum Eugene Andreuccetti 1964-5-2 45 Humboldt 30 yds. from Cedar Creek along Hwy. 299 Comment
  HSC85455  Erythronium oregonum subsp. leucandrum Andrew Buchanan, et al. 1986-4-19 18 Humboldt Horse Mtn. junction with Titlow Hill Ski Area access rd., E slope of the hill at edge of pine forest Comment
  UC1541310  Erythronium purpurascens W. K. Parks July 1933 1397 Humboldt South Fork Mountain Comment
  UC1196292  Eschscholzia californica Joseph P. Tracy 1943-11-28 17459 Humboldt Alton to Fortuna; Eel River 15 Comment
  HSC69578  Eucalyptus globulus R. Kalal 1980-6-1 7 Humboldt City of Arcata, along F street between 12th and 13th streets. 37 Comment
  UC1607850  Euchiton gymnocephalus Parks and Tracy 1932-7-30 1133 Humboldt Trinidad; Camp Twenty One 182 Comment
  SEINET11855621  Euchiton gymnocephalus J. P. Tracy 1948-9-26 18232 Humboldt at S end of Fickle Hill, 6 mi SE of Arcata 610 Comment
  UC275491  Euonymus occidentalis var. occidentalis H. E. Parks and Joseph P. Tracy 1925-6-14 7123 Humboldt along streams on Kneeland Prairie rd. Northern Coast Ranges, Kneeland Prairie rd. 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
  HSC100482  Euphorbia lathyris Carl C. Marshall Jun 1885 114 Humboldt Near Arcata fields, etc. Comment
  HSC7991  Euphorbia peplus Paul Shields 1955-6-18 Humboldt H.S.C. campus Comment
  UC302983  Euphorbia spathulata Joseph P. Tracy 1926-5-2 7431 Humboldt near South Fork; Trinity River Valley 182 Comment
  HSC76339  Eurybia radulina Teresa Prendusi 1981-7-21 277 Humboldt Near Whiteys Peak 1646 Comment
  CAS-BOT-BC413855  Fallopia sachalinensis T. C. Fuller 1960-8-25 4973 Humboldt W/Hwy 101, 1/4 mile N/Humboldt Hill Rd., Eureka Comment
  HSC98939  Festuca californica var. californica Cara Witte 2008-7-14 901 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  CAS-BOT-BC278816  Festuca occidentalis J. P. Tracy 1900-5-22 796 Humboldt Immediate vicinity of Eureka 152 Comment
  CAS-BOT-BC278965  Festuca rubra Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC103065  Festuca rubra J. P. Smith 2014-6-4 13867 Humboldt Big Lagoon County Park 5 Comment
  RSA126630  Festuca rubra H. S. Yates 1936-6-16 5671 Humboldt 1 mile N of Samoa. 3 Comment
  UC187109  Festuca rubra J. P. Tracy 1907-5-30 1108 Humboldt immediate vicinity Eureka 0 Comment
  HSC58702  Festuca subulata Griswold, Butler 1979-7-11 7033 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  UC1145205  Festuca subulata Joseph P. Tracy 1937-7-25 15541 Humboldt head of Little Hors-Linto Creek Trinity Summit, Little Hors-Linto Creek 1371 Comment
  POM111919  Festuca subuliflora H. P. Chandler 1901-05 1179 Humboldt Humboldt Bay. 30 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
  CAS-BOT-BC457925  Fragaria vesca subsp. californica Doris K. Kildale 1927-3-24 2947 a Humboldt Fleener Creek, Coastal Bluff. Comment
  CAS-BOT-BC52736  Frangula californica subsp. californica Carl B. Wolf 1927-8-30 1249 Humboldt At a small creek 3 miles south of Thorn. Comment
  SBBG26931  Frangula californica subsp. californica D. K. Kildale 1927-7-3 Humboldt Willow Crk flat on Trinity River 152 Comment
  CAS-BOT-BC53400  Frangula californica subsp. occidentalis Joseph P. Tracy 1941-9-4 17012 Humboldt Willow Creek Canyon, along Trinity Highway 609 Comment
  CAS-BOT-BC59956  Frangula purshiana Henry M. Pollard 1945-9-1 s.n. Humboldt Camp Creek, Klamath River Canyon. Comment
  HSC18417  Frangula purshiana L. J. Coombes 1964-5-18 50 Humboldt 2.5 mi E of McKinleyville on Hwy. 299 Comment
  HSC49623  Frangula purshiana R. York 1979-5-15 290 Humboldt Along trail to College Cove 1.0 mi N of Trinidad Comment
  HSC102621  Frasera speciosa M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1608 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  JEPS44086  Fraxinus latifolia W. L. Jepson 1903-6-15 2205 Humboldt Briceland Comment
  HSC79054  Fritillaria purdyi D. K. Imper 1984-5-16 Humboldt 0.25 mi. E of Friday Camp Rd., 0.25 mi. N of junction with 6N01 1220 Comment
  HSC67208  Fritillaria recurva Thomas W. Nelson, James Nelson 1980-6-10 5436 Humboldt Along E side of Red Mtn. 1372 Comment
  HSC71743  Galium ambiguum M. A. Baker 1980-6-26 2427 Humboldt Near Sims Creek 610 Comment
  HSC72984  Galium ambiguum subsp. siskiyouense M. A. Baker 1980-7-11 2773 Humboldt Near Red Mtn. 1341 Comment
  HSC41592  Galium ambiguum subsp. siskiyouense Thomas W. Nelson, Jane P. Nelson 1977-7-1 3558 Humboldt Along ridge between Bear Creek and Blanket Creek 1494 Comment
  HSC79511  Galium aparine Kenneth Clark 1980-6-14 695 Humboldt N Fork of Dead Man's Gulch 61 Comment
  HSC95075  Galium aparine Andrea Pickart 2002-6-30 133 Humboldt Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 0 Comment
  UC1196104  Galium aparine Joseph P. Tracy 1932-7-17 10653 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC19781  Galium aparine B. D. Rogers, William J. Ferlatte 1966-6-8 2087 Humboldt Forest Glen Campground Comment
  UC169002  Galium bolanderi Joseph P. Tracy 1911-7-6 3361 Humboldt mountain slopes along road between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 762 Comment
  JEPS6693  Galium californicum subsp. californicum W. L. Jepson 1932-8-1 16468 Humboldt Bull Creek 121 Comment
  JEPS81017  Galium divaricatum Thomas W. Nelson and Jane P. Nelson 1977-9-4 3746 Humboldt in cultivated area town of Willow Creek Comment
  JEPS6513  Galium mollugo Harold E. Parks and Joseph P. Tracy 1937-7-16 11451 Humboldt near Trinidad; near Trinidad 60 Comment
  HSC63804  Galium muricatum M. A. Baker 1979-5-23 756 Humboldt Comment
  JEPS25040  Galium muricatum Andrew P. Nelson 1960-7-19 625 Humboldt Nelson Grove S. fork of Eel River, Humboldt Redwoods State Park (rocky bank of river) Comment
  UC169006  Galium parisiense Joseph P. Tracy 1911-7-4 3278 Humboldt near mouth of Willow Creek; Northern Coast Ranges, valley of Trinity River 152 Comment
  HSC38523  Galium parisiense D. E. Anderson, J. P. Smith 1971-6-18 - 1075 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  SEINET11117326  Galium parisiense Unknown 1913-1 4083 Humboldt Rogers ranch, below Bridgeville on Van Duzen River, on dry rocky slopes. Altitude 500 ft. Comment
  UC1196091  Galium porrigens Joseph P. Tracy 1898-7-13 259 Humboldt near Hydesville; Northern Coast Ranges 60 Comment
  JEPS52974  Galium porrigens var. porrigens Lauramay T. Dempster and Jean Colton 1963-8-7 3888 Humboldt e Shelter Cove Comment
  UC196081  Galium trifidum Joseph P. Tracy 1927-7-10 8246 Humboldt Alton Northern Coast Region 30 Comment
  UC1199344  Gamochaeta ustulata Joseph P. Tracy 1934-6-19 13232 Humboldt Carlotta 60 Comment
  CAS-BOT-BC303389  Gamochaeta ustulata Joseph P. Tracy 1936-5-29 14830 Humboldt Near Orick, on Bald Hills Rd, 2 miles NE of Orick 152 Comment
  UC1199354  Gamochaeta ustulata Joseph P. Tracy 1917-7-8 4828 Humboldt Kneeland Prairie Road 457 Comment
  HSC41286  Garrya buxifolia Brad Klipfel 1974-7-27 480 Humboldt Horse Mtn. near Indian Butte Comment
  CAS-BOT-BC188533  Garrya elliptica Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC8395  Garrya fremontii Francis Winter 1960-5-7 Humboldt Sugar Pine Mtn. 1067 Comment
  RSA89597  Garrya fremontii M. F. Moseley 1952-8-21 344 Humboldt Along western valley wall of Willow Creek, mostly within Hoopa Indian Reservation, upstream from Willow Creek Village. Comment
  CAS-BOT-BC56267  Gaultheria ovatifolia Joseph P. Tracy 1939-7-9 16320 Humboldt Bald Mountain; at Lake Prairie 1066 Comment
  HSC74354  Gaultheria ovatifolia Gail Newton 1980-6-17 216 Humboldt Near Onion Mtn. 1341 Comment
  UC32666  Gaultheria ovatifolia Chesnut and Drew 1888-8-6 Humboldt Head of Redwood Creek Comment
  HSC89436  Gaultheria shallon P. A. Daly 1984-5-13 25 Humboldt Along trail/Rd. at Trinidad Head. 61 Comment
  POM285360  Gaultheria shallon Lyman Benson 1928-7-10 583 Humboldt Clam Beach, Trinidad. 8 Comment
  UCD20675  Gaultheria shallon A. T. Leiser 1980-7-9 s.n. Humboldt Humboldt County, North of Orick, Redwood National Park, Hwy 101 reroute, +- 1000' elevation. -304 Comment
  UCD20676  Gaultheria shallon A. T. Leiser 1980-7-8 s.n. Humboldt Humboldt County, Redwood National Park, Burm Creek. Comment
  JEPS66611  Gaultheria shallon W. L. Jepson 1902-6-29 1952 Humboldt Redwood Creek at Berry Ranch, (Expedition) from Ukiah to the Hupa Indian Reservation Redwood Creek; , Berry Ranch Comment
  SEINET11996979  Gaultheria shallon F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 293 a Humboldt 2.4 mi W of US 101 on CA 169 from Klamath to Klamath Glen along Klamath River 50 Comment
  UC505127  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9050 Humboldt along summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  HSC40848  Gayophytum humile Thomas W. Nelson 1976-7-9 3002 Humboldt W side of ridge S of E peak of Mount Lassic group 1524 Comment
  HSC58834  Gayophytum racemosum Overton, Butler 1979-7-31 11406 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC495730  Genista Joseph P. Tracy 1927-7-24 8301 Humboldt Mattole Valley; Northern Coast Ranges, Mattole Valley 152 Comment
  JEPS64791  Genista monspessulana W. L. Jepson 1936-8-11 17869 Humboldt Philipsville South Fork Eel River Comment
  HSC36597  Gentiana affinis Linda M. Barker, J. O. Sawyer, Thomas W. Nelson 1975-9-4 1307 Humboldt Megwill Point on Elk Head, N of Trinidad in Trinidad State Beach 15 Comment
  JEPS47046  Gentiana affinis var. ovata Joseph P. Tracy 1933-10-1 13078 Humboldt Big Lagoon 91 Comment
  UC562300  Gentiana affinis var. ovata Joseph P. Tracy 1933-10-1 13078 Humboldt hillsides Big Lagoon 91 Comment
  JEPS47021  Gentiana sceptrum Joseph P. Tracy 1927-8-22 8338 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  RSA183533  Gentiana sceptrum D. E. Anderson 1963-9-6 2810 Humboldt Big Lagoon Sphagnum Bog Comment
Read comments Feb 26 2014
  UC179966  Gentiana sceptrum Joseph P. Tracy 1914-9-6 4610 Humboldt between High Prairie and Snow Camp; Northern Coast Ranges, Bald Mountain 1219 Comment
  UC562302  Gentiana sceptrum Joseph P. Tracy 1927-8-22 8338 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UCD23455  Gentiana sceptrum K. Niles 1950-9-20 s.n. Humboldt Big Lagoon. Comment
  HSC2218  Geranium dissectum H. E. Parks, S. T. Parks Apr 1938 24118 Humboldt Spruce Cove, Trinidad 61 Comment
  UC169886  Geranium dissectum Harley P. Chandler Jun 1901 1420 Humboldt Klamath River North Coast Ranges Comment
  HSC100487  Geranium incisum Carl C. Marshall Jun 1885 106 Humboldt Hills. Comment
  UC169882  Geranium molle Harley P. Chandler May 1901 1124 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC169880  Geranium oreganum Joseph P. Tracy Jun 1901 1272 Humboldt Hupa Indian Reservation North Coast Ranges 609 Comment
  UC14245  Geum macrophyllum Chesnut and Drew 1888-8-10 Humboldt Arcata Comment
  SEINET12278778  Gilia capitata L. K. Henry 1971-1 s.n. Humboldt along Rt 36, 2 mi E of Dinsmore in Six Rivers National Forest Comment
  UC52536  Gilia capitata subsp. capitata Mrs. M. H. Manning Humboldt Hupa Comment
  BLMAR527  Gilia capitata subsp. pacifica Jennifer Wheeler 2009-6-23 527 Humboldt King range, On King Peak road Comment
  HSC90478  Gilia millefoliata Jean Hanson 1981-5-10 131 Humboldt Indian Island, Humboldt Bay, Eureka, W end of island Comment
  UC1602182  Githopsis specularioides Harley P. Chandler Jun 1901 1345 Humboldt Hupa Reservation North Coast Ranges 152 Comment
  UC602567  Githopsis specularioides Joseph P. Tracy 1932-6-17 10221 Humboldt Three Forks of Mad River North Coast Ranges 883 Comment
  UC1191701  Glaux maritima Malcolm A. Nobs, S. Galen Smith 1949-8-3 1201 Humboldt 2 mi n of Eureka (bordering Humboldt Bay); Humboldt Bay Comment
  HSC39440  Glehnia littoralis subsp. leiocarpa Linda M. Barker 1976-6-22 1626 Humboldt 3 mi. W of Arcata Comment
  HSC46969  Glehnia littoralis subsp. leiocarpa J. P. Smith, Thomas W. Nelson 1977-6-30 9211 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  UC1197365  Glehnia littoralis subsp. leiocarpa J. P. Tracy 1901-5-18 1097 Humboldt sand hills of Ocean Beach at Samoa opposite Eureka Comment
  UC642312  Glehnia littoralis subsp. leiocarpa Joseph P. Tracy 1933-8-25 12994 Humboldt s. of mouth of Eel R. (Centerville Beach); Centerville Beach 6 Comment
  HSC10057  Glyceria declinata W. F. Cartwright 1965-5-20 80 Humboldt 5 mi. S of Arcata on Old Arcata Road Comment
  UC183531  Glyceria elata Joseph P. Tracy 1908-6 2770 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC187282  Glyceria elata Joseph P. Tracy 1911-7-7 3372 Humboldt 3 mi nw Willow Creek junction with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC187286  Glyceria elata Joseph P. Tracy 1911-7-7 3372 Humboldt 3 mi nw Willow Creek junction with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC212892  Glyceria elata Joseph P. Tracy 1919-9-25 5297 Humboldt Trinity Summit; Northern Coast Ranges 1889 Comment
  UC1132071  Glyceria occidentalis H. L. Person 1932-5-11 Humboldt near Arcata; Eureka Quad 0 Comment
  UC1103750  Glyceria striata Joseph P. Tracy 1934-7-18 13430 Humboldt Grouse Mountain; North Coast Ranges 1524 Comment
  UC179960  Goodyera oblongifolia Joseph P. Tracy 1914-8-30 4595 Humboldt Ocean Beach at Humboldt Bay, Northern Coast Region Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  JEPS4220  Gratiola ebracteata Joseph P. Tracy 1930-5-18 8697 Humboldt Rohnerville 152 Comment
  CAS-BOT-BC304765  Grindelia hirsutula 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
  JEPS41894  Grindelia hirsutula W. L. Jepson 1936-8-17 17924 Humboldt 2.5 mi s of Fields Landing (flats) Comment
  SBBG62631  Grindelia hirsutula R. Hartwell 1938-8-5 Humboldt Mattole Rd on coast between Capetown and Petrolia, along beach Comment
  UC1552453  Grindelia hirsutula R. D. Goeden 1987-9-2 21 Humboldt on bank above Mattole Road; Cape Mendocino (Cape Ridge) 182 Comment
  BLMAR308  Grindelia stricta Jennifer Anthony-Wheeler 2002-7-1 308 Humboldt South Spit 6 Comment
  POM359112  Grindelia stricta var. platyphylla M. B. Dunkle 1936-8-18 4813 Humboldt South of Eureka. 91 Comment
  RSA34235  Grindelia stricta var. stricta C. B. Wolf 1927-8-28 1184 Humboldt Eureka Bay, on the road to Arcata. Comment
  RSA861  Grindelia stricta var. stricta E. R. Johnson 1928-8-25 1145 Humboldt Eureka Comment
  UC1222253  Hackelia californica Joseph P. Tracy 1949-8-26 18524 Humboldt on Ridge 2 mi e Grove's Prairie (near Elk Camp); Trinity nSummit 1524 Comment
  HSC102601  Hackelia micrantha M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1588 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  JEPS55562  Hackelia micrantha Hilda Grinnell 1932-7-12 16 Humboldt slope below McKay Camp; South Fork Mountain Comment
  UC3687  Hastingsia alba H. N. Bolander 1860-1-1 6559 Humboldt Red Mountains Comment
  SEINET2166159  Hedera helix Joseph P. Tracy 1939-1-22 16185 Humboldt Blue SLide, on Van Duzen River. Comment
  HSC102180  Helenium bigelovii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1093 Humboldt Patterson Meadows 1555 Comment
  UC582670  Helenium bigelovii Joseph P. Tracy 1937-8-12 15657 Humboldt Snow Camp 1402 Comment
  UC175963  Helenium bolanderi Joseph P. Tracy 1912-7-24 3808 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC306873  Helenium bolanderi Ira L. Wiggins 1932-7-19 5891 Humboldt About 1 1/2 miles north of Trinidad Head Comment
  HSC102043  Hemizonella minima M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 946 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC48030  Hemizonella minima Brad Klipfel 1974-5-27 405 Humboldt Horse Mtn. Comment
  HSC70841  Hemizonella minima M. A. Baker 1980-6-7 1788 Humboldt Near Brush Mtn. 1128 Comment
  HSC73539  Hemizonella minima Gail Newton 1980-7-14 1475 Humboldt Near Last Chance Ridge. 1219 Comment
  CAS-BOT-BC309991  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1937-7-19 15456 Humboldt Buck Mountain, lower foothills of its northwest slope 914 Comment
  UC1173664  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1939-8-10 16400 Humboldt Kneeland Prairie 762 Comment
  UC176756 Image available Hemizonia congesta subsp. tracyi J. P. Tracy 1908-7-30 2754 Humboldt opposite Buck Mountain; valley of Van Duzen River; valley of Van Duzen River opposite Buck Mt., Humboldt Co. 762 Comment
  UC673047  Heracleum lanatum Joseph P. Tracy 1940-9-26 16730 Humboldt s. end Humboldt Bay (Salmon Creek Valley); , Salmon Creek Valley 9 Comment
  RSA246845  Heracleum maximum R. F. Thorne, P. Everett 1965-8-9 35327 Humboldt Clam Beach County Park: along highway. 3 Comment
  SD53245  Heracleum maximum Darley F. Howe 1962-5-22 3301 B Humboldt 0.5 miles north of Orick on # 101 29 Comment
  RSA249393  Heterocodon rariflorum D. E. Anderson, Thomas W. Nelson, S. Dowty 1974-6-17 5709 Humboldt McKeown Ranch N of Dinsmore. Comment
  BLMAR81  Heuchera micrantha Jennifer Anthony-Wheeler 1994-6-2 81 Humboldt IAQUA, growing along moist, rocky banks 3/4mi from pvd 853 Comment
  CAS-BOT-BC420724  Heuchera micrantha var. diversifolia L. R. Abrams 1918-6-16 7150 Humboldt Willow Creek Comment
  SEINET192937  Heuchera micrantha var. erubescens L. Constance, RC Rollins 1942-5-12 2883 Humboldt Mouth of Bluff Cr 6 mi NE of Weitchpec Klamath-Siskiyou Region 152 Comment
  RSA0063134  Heuchera micrantha var. hartwegii Joseph P. Tracy 1950-6-8 18716 Humboldt Bluffs at the Sand Cut . Wild Cat Rd. 2 miles S of Ferndale. 305 Comment
  HSC56114  Heuchera rubescens Gilbert Muth 1979-8-1 11884 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC57107  Hieracium albiflorum Overton, Butler 1979-7-25 9845 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  CAS-BOT-BC312389  Hieracium albiflorum Doris K. Kildale 1925-7-5 1022 Humboldt Willow Creek Flat, Trinity River Valley 152 Comment
  HSC44097  Hieracium albiflorum Thomas W. Nelson, Jane P. Nelson 1977-8-6 3706 Humboldt Beside road 2S08 at Alder Spring 1585 Comment
  RSA595781  Hieracium albiflorum R. S. Woglum 1931-7-15 24 A Humboldt Outer Coast Ranges, Sequoia Park. Comment
  HSC57940  Hieracium greenei G. L. Clifton, Griswold 1979-7-31 11607 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC74490  Hieracium greenei M. A. Baker 1980-7-24 3209 Humboldt Near Orleans Mtn. 1625 Comment
  UC1199469  Hieracium nudicaule Joseph P. Tracy 1929-7-4 8629 Humboldt French Camp Ridge 1066 Comment
  CDA28238  Hierochloe occidentalis Wilma Mae Lowary & Norah van Kleeck 1974-8-8 Humboldt Lady Bird Johnson Grove, Redwood National Park, northeast of Orick. 0 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
  HSC13454  Hippuris vulgaris D. E. Anderson 1965-10-25 4161 Humboldt Georgia-Pacific Co., N Big Lagoon Comment
  HSC36131  Hippuris vulgaris Trygve F. Dahle III 1972-11-18 7 Humboldt Clam Beach ponds Comment
  UC275351  Hirschfeldia incana Joseph P. Tracy 1924-8-4 6739 Humboldt railroad station Eureka 0 Comment
  CAS-BOT-BC280735  Holcus lanatus L. R. Abrams 1916-7-11 6018 Humboldt Mouth of Grizzly Creek on Van Duzon [Duzen] River Comment
  CHSC2150  Holcus lanatus M. Anthony 1960-5-1 Humboldt Comment
  UCD84972  Holcus lanatus Joseph P. Tracy 1949-7-6 18330 Humboldt Eureka. 30 Comment
  UC1127999  Holodiscus discolor A. E. Wieslander 1931-5-22 216 Humboldt hills s of Ferndale Comment
  UC666848  Holodiscus discolor Joseph P. Tracy 1937-6-20 15347 Humboldt Bear River 10 miles upstream from the mouth Bear River 152 Comment
  UC666853  Holodiscus discolor Joseph P. Tracy 1936-8-7 15114 Humboldt 2 mi se of Devil's Hole (Trinity Summit); Trinity Summit 1584 Comment
  CAS-BOT-BC284690  Hordeum jubatum Joseph P. Tracy 1927-7-16 8249 Humboldt Northern Coast Ranges. Around Humboldt Bay. Mouth of Elk River 3 Comment
  UC1103740  Hordeum marinum subsp. gussoneanum Joseph P. Tracy 1901-6-16 1144 Humboldt Eureka Northern Coast Region, Eureka 0 Comment
  UC552789  Hordeum marinum subsp. gussoneanum Joseph P. Tracy 1935-5-25 13866 Humboldt Fort Seward 106 Comment
  HSC18779  Horkelia californica var. californica J. P. Tracy 1937-8-22 15672 Humboldt S of Fields Landing 6 Comment
  HSC82020  Horkelia tridentata var. flavescens Thomas W. Nelson, James Nelson 1980-6-10 5397 Humboldt Along Swayback Ridge 4-wheel drive road, 1.25 mi. S of junction with Forest Service road. 1494 Comment
  CAS-BOT-BC206123  Hosackia crassifolia Clarence R. Quick 1959-7-24 59 -37 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  HSC58547  Hosackia crassifolia Overton, Butler 1979-7-24 9601 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  HSC58539  Hosackia oblongifolia var. oblongifolia Overton, Butler 1979-7-23 9469 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  UC204110  Hydrophyllum tenuipes Joseph P. Tracy 1918-6-16 4954 Humboldt Eureka; Northern Coast Region 0 Comment
  POM229372  Hydrophyllum tenuipes Lincoln Constance, A. A. Beetle 1940-5-16 2611 Humboldt Valley of Van Duzen River, 5 miles east of Carlotta. 30 Comment
  HSC56966  Hypericum anagalloides Walter Overton, Butler 1979-7-23 9489 Humboldt Near Titlow Hill, close to the town of Willow Creek 1280 Comment
  HSC62864  Hypericum anagalloides J. M. DiTomaso 1979-5-20 1046 Humboldt Big Lagoon Park, 8 mi. N of Trinidad Comment
  CAS-BOT-BC400793  Hypericum anagalloides C. L. Hitchcock; J. S. Martin 1939-7-14 5442 Humboldt 7 miles east of Shelter Cove 243 Comment
  CHSC19478  Hypericum perforatum Thomas W. Nelson 1970-10-18 251 Humboldt Beside highway 101 ca. 100 yds. N. of Mad River bridge. Comment
  UC1198408  Hypericum perforatum Joseph P. Tracy 1914-5-14 4449 Humboldt Fort Seward Northern Coast Ranges, Fort Seward 121 Comment
  UC1198412  Hypericum perforatum Joseph P. Tracy 1926-7-25 7754 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 152 Comment
  CAS-BOT-BC401303  Hypericum scouleri Doris K. Kildale 1926-7-9 2337 Humboldt Bayside Comment
  HSC45647  Hypochaeris glabra Diane L. Reed 1978-4-22 19 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  CAS-BOT-BC206845  Iliamna latibracteata C. B. Wolf 1931-8-28 2367 Humboldt Redwood Highway, 3 miles north of Orick, Davison's Ranch on Prairie Creek 60 Comment
  CAS-BOT-BC206850  Iliamna latibracteata Don Hagar 1957-6-20 L 10 Humboldt Cedar Creek Divide, 5.5 miles east of Willow Creek 1066 Comment
  HSC96751  Iliamna latibracteata M. Mesler 2006-7-28 627 Humboldt NNE of Grouse Mtn., 1.1 mi. from NF 1. 1570 Comment
  SEINET10830077 Image available Iliamna latibracteata Joseph P. Tracy 1938-8-14 Tracy 16104 Humboldt Willow Creek anyon, along Trinity Highway. 762 Comment
  RSA78186  Iris Rimo C. Bacigalupi 3414 Humboldt Under Pseudotsuga and Abies concolor, about Snow Camp meadow, ridge between Mad River and Redwood Creek (Bald Mountain) 1433 Comment
  HSC99250  Iris chrysophylla T. Jimerson, J. Pageau 1979-6-13 551 Humboldt Near Slate Creek Butte, close to the town of Orleans 549 Comment
  BLMAR542  Iris purdyi Jennifer Wheeler 2009-6-23 542 Humboldt King range, On Paradise Ridge road Comment
  HSC104075  Iris purdyi S. Carothers 2001-6-7 Humboldt Six Rivers National Forest; Lassics Botanical Area; below blue serpentine ridge, above Rd. 1S11 1585 Comment
  SEINET3875944  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-4-27 438 Humboldt On Ishi Pishi Road, 1.7 mi. south of intersection with Forest Road 11N11, Orleans.; 0 213 Comment
  RSA135922  Iris tenuissima Lee W. Lenz 1953-5-17 18319 Humboldt 1 mile west of Willow Creek, Highway 299 Comment
  JEPS101847  Isolepis cernua Dean W. Taylor 1991-9-15 12285 Humboldt Big Lagoon, along Highway 101 near the mouth of Tom Creek. 3 Comment
  JEPS79910  Isopyrum stipitatum Joseph P. Tracy 1935-5-5 13802 Humboldt Kneeland Prairie 822 Comment
  CAS-BOT-BC109923  Juncus L. B. Kildale 1931-8-9 s.n. Humboldt Three Creeks on Willow Creek road. Comment
  CAS-BOT-BC110012  Juncus Henry M. Pollard 1956-10-8 s.n. Humboldt Along road above Ullathorne Riffle, ca. 3 miles southwest of Orleans. Comment
  SEINET11788605  Juncus articulatus J. P. Tracy 1938-1 16114 Humboldt W of mouth of South Fork, Trinity River Valley, near South Fork 183 Comment
  UC185007  Juncus balticus subsp. ater Joseph P. Tracy 1912-7-21 3787 Humboldt Alton Northern Coast Region 30 Comment
  HSC34705  Juncus bolanderi Thomas W. Nelson 1974-7-20 1699 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1103037  Juncus bolanderi Joseph P. Tracy 1900-9-2 932 Humboldt Eureka Northern Coast Region 0 Comment
  RSA246802  Juncus bufonius Robert F. Thorne, Percy C. Everett 1965-8-7 35229 Humboldt Samoa Peninsula. 3 Comment
  RSA298326  Juncus bufonius J. P. Smith, Advanced Plant Taxonomy Plant 1971-10-9 5009 Humboldt Mad River above the Fish Hatchery. Comment
  POM170510  Juncus effusus subsp. pacificus Le Roy Abrams 1916-7-18 6102 Humboldt Arcata to Trinidad. Comment
  UC184935  Juncus effusus subsp. pacificus Joseph P. Tracy 1912-7-25 3820 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC75276  Juncus ensifolius J. O. Sawyer, D. A. Thornburgh 1980-9-9 4079 Humboldt Mill Creek Lake and surrounding meadows Comment
  POM126146  Juncus ensifolius Joseph P. Tracy 1924-7-13 6732 Humboldt Big Lagoon. 6 Comment
  UC1152098  Juncus ensifolius Joseph P. Tracy 1938-7-4 15995 Humboldt Valley of South Yager Creek 762 Comment
  SEINET11789588  Juncus hesperius J. P. Tracy 1938-1 15938 Humboldt vicinity of Carlotta, 2 mi E of town 30 Comment
  UC1133717  Juncus patens H. S. Yates 1936-6-23 5858 Humboldt 2 mi se mouth of Mad River; Eureka Quad. 30 Comment
  UC183961  Juncus patens Joseph P. Tracy 1912-7-26 3848 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC43841  Juncus regelii Maralyn O'Meara 1974-7-11 530 Humboldt Kneeland, Barry Ridge along private road Comment
  JEPS66616  Kalmia polifolia subsp. microphylla Joseph P. Tracy 1935-7-26 14261 Humboldt Trinity Summit, at Water Dog Lakes Water Dog Lakes; Trinity Summit, Water Dog Lakes 1828 Comment
  CAS-BOT-BC235878  Keckiella corymbosa P. A. Munz 1936-8-9 14328 Humboldt Cliff, south fork of Eel River, 5 mi. north of Humboldt-Mendocino County-line Comment
  CAS-BOT-BC235885  Keckiella corymbosa Doris K. Kildale 1926-7-25 2433 Humboldt Briceland Bridge 1/2 mi. west of Garberville 114 Comment
  HSC56112  Kelloggia galioides G. L. Clifton 1979-7-31 11876 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC98106  Kelloggia galioides Cara Witte 2007-6-27 375 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1/2 mile south of intersection with 5N04 and 4N32E. 1425 Comment
  RSA10089  Koeleria macrantha Joseph P. Tracy 1925-7-5 7163 Humboldt High Prairie, on Bald Mountain. 1067 Comment
  UC1103698  Koeleria macrantha Joseph P. Tracy 1929-7-4 8627 Humboldt French Camp Ridge 1066 Comment
  UC1196124  Kopsiopsis strobilacea Joseph P. Tracy 1935-7-28 14323 Humboldt Trinity Summit. Head of Devil's Hole. 1828 Comment
  POM187943  Lactuca biennis Marcus E. Jones 1931-7-14 29090 Humboldt South of Eureka Comment
  HSC69891  Lagophylla ramosissima Thomas W. Nelson, Jane P. Nelson 1977-7-30 3661 Humboldt Beside State Rte. 36, 1 mi. E of Dinsmore. 732 Comment
  UC1223225  Lagophylla ramosissima Joseph P. Tracy 1950-8-4 19259 Humboldt ne lookout ((at head of Canoe Creek)); Bull Creek State Park, Grasshopper Peak Comment
  UC169348  Lagophylla ramosissima Joseph P. Tracy 1912-8-3 3966 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC204782  Lapsana communis Joseph P. Tracy 1918-6-23 4957 Humboldt outskirts of Arcata, around Humboldt bay Northern Coast Ranges, Humboldt Bay 60 Comment
  JEPS10075  Lasthenia californica subsp. californica Joseph P. Tracy 1932-6-26 10265 Humboldt Valley of South Yager Creek 762 Comment
  UC1199125  Lasthenia californica subsp. californica J. P. Tracy 1901-4-14 1026 Humboldt Ocean Beach at Samoa; Opp. Eureka Comment
  UC128624  Lasthenia californica subsp. californica Joseph Burtt Davy and Walter C. Blasdale 1899-6-9 5380 Humboldt Harris Comment
  HSC26469  Lasthenia maritima T. O. Osborne 1970-5-17 20 Humboldt Sugarloaf Rock, Cape Mendocino 46 Comment
  HSC26359  Lasthenia maritima T. O. Osborne 1970-6-18 47 Humboldt Green Rock, 1-5/8 mi. N, 3/4 mi. W of Trinidad Lighthouse. Comment
  HSC14707  Lathyrus glandulosus Lincoln Constance 1934-6-8 837 Humboldt S Fork Eel River, Cow Creek Fire Trail, from Bull Creek Rd., N over the divide, into the headwaters of Bear Creek. Comment
  RSA520696  Lathyrus littoralis Glenn A. Gorelick 1967-6-4 s.n. Humboldt Samoa Beach, near Eureka. Comment
  HSC62924  Lathyrus littoralis J. M. DiTomaso 1979-4-22 913 Humboldt Big Lagoon, 8 mi. N of Trinidad Comment
  HSC74333  Lathyrus nevadensis var. nevadensis Gail Newton 1980-6-16 151 Humboldt Near Monks Camp 1097 Comment
  SEINET956148  Lathyrus polyphyllus Joseph P. Tracy 1923-1 6344 Humboldt Bald Mt. 914 Comment
  HSC95459  Lathyrus sulphureus D. K. Imper 1993-6-25 Humboldt Table Bluff Ecological Reserve near Lighthouse Ranch, Table Bluff. 15 Comment
  UC1199063  Lathyrus torreyi Joseph P. Tracy 1911-7-7 3434 Humboldt between Willow Creek Campbell Creek (viz ridge n of Willow Creek); Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC162788  Lathyrus vestitus Joseph P. Tracy 1906-6-24 2498 Humboldt near Field's Landing (s slope of Humboldt Hill); Northern Coast Region, Humboldt Bay Region, Humboldt Hill 0 Comment
  UC931760  Lathyrus vestitus C. L. Hitchcock 1949-6-8 19087 Humboldt 1 mi se Willow Creek (along Highway 299) Comment
  CAS-BOT-BC325995  Layia carnosa David D. Keck; J. Clausen 1935-6-16 3381 Humboldt Mouth of Little River. 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
  HSC5911  Layia carnosa J. W. Johnson 1962-4-18 1272 Humboldt Arcata, between the Mad River mouth and the Hunt Farm, Samoa Peninsula. Comment
  UC30591  Layia carnosa J. P. Tracy 1901-4-17 Humboldt Samoa; Humboldt Bay Comment
  UC1223218  Layia gaillardioides Joseph P. Tracy 1942-6-15 17165 Humboldt 5 mi n Garberville 60 Comment
  UC179962  Lemna turionifera Joseph P. Tracy 1914-9-13 4630 Humboldt at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  RSA94973  Leontodon nudicaulis F. W. Peirson 1926-7-13 7056 Humboldt Near Blue Lake, Mad River. Comment
  HSC98043  Lepidium campestre Cara Witte 2007-7-17 538 Humboldt Along National Forest 1. 1 mile south of Brays Opening. 1447 Comment
  UC1116215  Lepidium nitidum Joseph P. Tracy 1948-5-31 17990 Humboldt Harris 762 Comment
  UC1116217  Lepidium strictum Joseph P. Tracy 1946-5-4 17433 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC12875  Lepidium strictum Kenneth Clark 1981-5-2 1362 Humboldt Shelter Cove. Point Delgada. In parking lot of Mario's Marina. 15 Comment
  UC195426  Lepidium virginicum Joseph P. Tracy 1915-9-12 4670 Humboldt opposite Laribee Creek; Northern Coast Ranges, Eel River, Holmes Flat 60 Comment
  CAS-BOT-BC226526  Leptosiphon acicularis Doris K. Kildale 1926-4-25 1800 Humboldt Willow Creek Flat 152 Comment
  UC1225825  Leptosiphon latisectus Joseph P. Tracy 1948-6-13 18048 Humboldt 2 mi n Harris 609 Comment
  CAS-BOT-BC341825  Lessingia nemaclada Carl D. Duncan 1920-9-21 422 Humboldt At Hoopa Comment
  CAS-BOT-BC334617  Leucanthemum vulgare Joseph P. Tracy 1937-6-23 15360 Humboldt Along Mad River near Blue Lake 15 Comment
  UC673022  Lewisia leeana Joseph P. Tracy 1935-7-24 14200 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  JEPS5842  Lewisia nevadensis Joseph P. Tracy 1932-7-10 10377 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC673020  Lewisia nevadensis Joseph P. Tracy 1933-7-11 12687 Humboldt Grouse Mountain 1524 Comment
  UC682047  Leymus mollis subsp. mollis G. L. Stebbins Jr. and G. L. Church 1941-5-26 3105 Humboldt s Trinidad; Little River Comment
  JEPS17503  Ligusticum apiifolium W. L. Jepson 1902-6-30 1959 Humboldt on Hupa Rd. near Redwook Creek Comment
  HSC56215  Ligusticum californicum G. L. Clifton, Terry Griswold 1979-8-2 12225 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC102118  Ligusticum grayi M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1022 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC102534  Ligusticum grayi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1520 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC56048  Ligusticum grayi G. L. Clifton, Terry Griswold 1979-7-31 11643 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC75965  Ligusticum grayi Overton, Butler 1979-8-2 12584 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UCD127580  Lilaeopsis occidentalis Malcolm A. Nobs; S. Galen Smith 1949-8-3 1166 Humboldt Eel River Valley, 1 mile south of Fields Landing. Comment
  HSC21521  Lilaeopsis occidentalis J. W. Johnson 1962-6-5 Humboldt Lanphere Farm, Samoa Peninsula, Hollow 10 Comment
  UC205462  Lilaeopsis occidentalis Joseph P. Tracy 1920-8-29 5391 Humboldt mouth of Little R.; Northern Coast Ranges 6 Comment
  CAS-BOT-BC508389  Lilium columbianum V. Rattan 1879-1-1 s.n. Humboldt Klamath Comment
  HSC15574  Lilium kelloggii D. G. Hauger 1967-7-15 12 Humboldt Kneeland Rd, 0.25 mi. from Kneeland Post office Comment
  HSC15575  Lilium kelloggii D. E. Anderson 1962-7-14 2250 Humboldt 2 mi. W of Kneeland Post Office Comment
  UC1334273  Lilium kelloggii Albert M. Vollmer and Ira L. Wiggins 1940-7-4 6 Humboldt 15 mi. w. Weitchpec (on burned-over ridge on Orick-Weitchpec rd.) 944 Comment
  UC302156  Lilium kelloggii Joseph P. Tracy 1926-6-13 7593 Humboldt Liscom HIll; Northern Coast Ranges 457 Comment
  UC1035025  Lilium occidentale A. M. Vollmer and L. Beane Jul 1953 118 Humboldt Comment
  UC175928  Lilium occidentale Joseph P. Tracy 1912-6-16 3705 Humboldt near Indianola (on Table Bluff); Northern Coast Region, Humboldt Bay Region 0 Comment
  UC1225855  Lilium pardalinum Joseph P. Tracy 1948-9-5 18196 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  HSC58026  Lilium pardalinum subsp. pardalinum G. L. Clifton 1979-7-31 11837 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  CAS-BOT-BC132960  Lilium rubescens A. M. Vollmer; L. Beane 1951-6-1 147 Humboldt On trail to Blohn's cabin, Bald Mountain, east of Korbel Comment
  HSC73704  Lilium rubescens M. A. Baker 1980-7-23 3184 Humboldt Near Orleans Mtn. 1859 Comment
  JEPS109815  Lilium rubescens Dean W. Taylor 2004-6-23 19117 Humboldt Redwood House Road, South Fork Yaeger Creek 749 Comment
  UC1198251  Lilium rubescens Joseph P. Tracy 1908-6 2864 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  BLMAR501  Limnanthes douglasii Jennifer Wheeler 2009-4-30 501 Humboldt King range, Hidden Valley trail; trail forward Comment
  RSA183582  Limnanthes douglasii subsp. douglasii G. Bos 1965-5-15 274 Humboldt Berry Summit near U.S. 299. 793 Comment
  UC1561269  Limnanthes douglasii subsp. nivea Barbara Ertter with Thomas J. Delendick 1987-5-16 6925 Humboldt just w Berry Summit (on Hwy 299, ca 15 air mi e of Arcata); Vista Point 914 Comment
  UC971842  Limnanthes douglasii subsp. nivea Charles T. Mason Jr. 1949-4-30 1282 Humboldt e side of road to Fortuna 4.9 mi from Bridgeville Comment
  POM319075  Limonium californicum Patricia Wilder 1968-8-21 4411 Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  UC427875  Linanthus androsaceus H. E. Parks, J. P. Tracy 1930-5-25 794 Humboldt vicinity Bridgeville; Laribee Valley Comment
  HSC20667  Linaria vulgaris H. E. Parks, S. T. Parks Aug 1943 22239 Humboldt Along Hwy., Stone Lagoon 15 Comment
  HSC95072  Linum bienne Andrea Pickart 2002-7-2 146 Humboldt King Salmon Sand Spit 0 Comment
  JEPS45743  Linum usitatissimum W. L. Jepson 1936-8-17 17925 Humboldt 2 1/2 mi s of Fields Landing Comment
  UC1103032  Listera caurina Joseph P. Tracy 1926-6-6 7555 Humboldt on raod from Hoopa w to Bair's (near summit); Hoopa Mountain 1066 Comment
  HSC64187  Listera convallarioides J. O. Sawyer, M. A. Ericksen 1979-6-23 3388 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  RSA0049664  Listera cordata Dean Wm. Taylor 2011-5-4 21113 Humboldt Alderpoint Road in the vicinity of headwaters of Knack Creek 777 Comment
  UC1196367  Lithocarpus densiflorus Joseph P. Tracy 1921-10-2 5964 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  POM270414  Lithocarpus densiflorus var. densiflorus Lyman Benson 1927-7-12 224 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; River: South Fork Eel. 61 Comment
  RSA1900  Lithocarpus densiflorus var. densiflorus Carl B. Wolf 1930-10-29 1783 Humboldt Old Coast Road, 4 mi. so. of Honeydew Post Office. 305 Comment
  RSA55100  Lithocarpus densiflorus var. densiflorus O. J. Murie 1934-11-30 2532 Humboldt South of Gerberville. Comment
  UC1196485  Lithophragma affine Joseph P. Tracy 1913-6-14 4118 Humboldt opposite Buck Mountain (Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC180203  Logfia gallica Joeseph P. Tracy 1914-5-14 4467 Humboldt Fort Seward 121 Comment
  CAS-BOT-BC283401  Lolium multiflorum Malcom A. Nobs; S. Galen Smith 1949-8-3 1177 Humboldt Salt marshes around Fields Landing Comment
  UC1541549  Lolium multiflorum Harold E. Parks May 1933 4305 Humboldt Spruce Cove Trinidad; Spruce Cove Comment
  UC38782  Lolium multiflorum Harley P. Chandler May, 1901 1103 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 30 Comment
  SEINET200763  Lomatium ciliolatum Joseph P. Tracy 1930-7-10 8869 Humboldt Brannan mountain Comment
  HSC32283  Lomatium ciliolatum var. ciliolatum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5619 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC55748  Lomatium macrocarpum G. L. Clifton, Terry Griswold 1979-7-26 10275 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC74465  Lomatium macrocarpum M. A. Baker 1980-5-18 1328 Humboldt Near Black Mtn. 792 Comment
  UC1222756  Lomatium macrocarpum Joseph P. Tracy 1950-6-15 18823 Humboldt n.e. side Mail Ridge (at Huestis Rock); , Huestis Rock Comment
  UC1222607  Lomatium macrocarpum Joseph P. Tracy 1951-6-24 19537 Humboldt atop ridge near Ashfield Butte (Kneeland Prairie); Kneeland Prairie 1676 Comment
  HSC73958  Lomatium nudicaule Gail Newton 1980-6-7 125 Humboldt Near Brush Mtn. 1128 Comment
  HSC47949  Lomatium tracyi Brad Klipfel 1974-5-8 326 Humboldt Horse Mountain Comment
  HSC97218  Lomatium tracyi K. Auker, R. Battleson 2007-6-11 3 Humboldt Near Grouse Mtn., 11.9 mi. S of Hwy. 299 on F.S. Rd. NF1 1585 Comment
  UC647479  Lomatium tracyi Joseph P. Tracy 1930-7-10 8869 Humboldt Brannan Mt. 1219 Comment
  HSC45626  Lomatium utriculatum Diane L. Reed 1978-5-27 133 Humboldt Horse Mtn., Titlow Hill Rd., 2.7 mi. from Hwy. 299 Comment
  JEPS2711 Image available Lomatium utriculatum W. L. Jepson 1934-5-8 16716 Humboldt Redway South Fork Eel River; Redway, S fork of Eel River Comment
  UC1714577  Lomatium utriculatum unknown 1191 Humboldt Humboldt Bay Comment
  JEPS12869  Lonicera ciliosa Joseph P. Tracy 1921-10-16 5876 Humboldt viz. ridge n Willow Creek (between Willow and Campbell Creeks); Northern Coast Ranges, Brannan Mountain 944 Comment
  RSA168961  Lonicera conjugialis Joseph P. Tracy 1950-8-8 19287 Humboldt Croghan Hole, on Trinity Summit 1677 Comment
  CAS-BOT-BC240468  Lonicera hispidula H. E. McMinn 1922-8-5 345 Humboldt Van Duzen River Comment
  CAS-BOT-BC240470  Lonicera hispidula Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC3955  Lonicera hispidula var. vacillans J. Allen DeCou 1899-6-4 Humboldt Comment
  RSA43892  Lonicera hispidula var. vacillans H. M. Pollard 1948-7-21 s.n. Humboldt Near Orleans. Comment
  UC1052838  Lonicera hispidula var. vacillans W. L. Colwell 1955-6-7 25 Humboldt 1/2 mi n Grasshopper Mountains lookout (3 mi w of Weott); Quad. 29-B-3 914 Comment
  UCSB10475  Lonicera involucrata Phillips, Priscilla 1958-6-10 Humboldt 0.8 mi. south of intersection of Highway 101 and old highway parallel to it, which runs between Trinidad and Colonial Inn, on the old road Comment
  HSC37832  Lonicera involucrata var. ledebourii Thomas W. Nelson, James Nelson 1976-3-11 2264 Humboldt Beside Eel River just N of W terminus of Singley Rd. Comment
  SDSU2917  Lonicera involucrata var. ledebourii Harvey 1938-8-13 2278 Humboldt North of Arcata. Comment
  UC1125285  Lonicera involucrata var. ledebourii A. E. Wieslander 1931-5-22 215 Humboldt hills s Ferndale; Cape Fortuna Quadrangle Comment
  CAS-BOT-BC200914  Lotus Milo S. Baker 1927-8-21 2468 a Humboldt Near Bald Mt. Comment
  UCSB30598  Lotus corniculatus Edwards, David 1974-7-13 Humboldt North side of 7th St. just W of its overpass of U.S. 101, Arcata 18 Comment
  HSC99573  Lotus crassifolius K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 238 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
  UC162607  Lotus crassifolius var. crassifolius Harley P. Chandler Jun 1901 1470 Humboldt Orleans Bar to Sommes Bar; North Coast Ranges 365 Comment
  RSA168893  Lotus micranthus Joseph P. Tracy 1936-5-30 14839 Humboldt Near Samoa on Humboldt Bay. 6 Comment
  UC1197295  Lotus micranthus J. P. Tracy 1901-6-23 1179 Humboldt immediate vicinity Eureka 0 Comment
  UC162849  Lotus micranthus J. P. Tracy 1902-6-20 1750 Humboldt immediate vicinity Eureka 0 Comment
  JEPS55502  Lotus micranthus Lincoln Constance 1934-5-23 610 Humboldt above Look Prairie; South Fork Eel River, Bull Creek Region 365 Comment
  UC1223395  Lotus micranthus Joseph P. Tracy 1938-6-8 15869 Humboldt Samoa San Dunes Comment
  UC169299  Lotus purshianus var. purshianus Joseph P. Tracy 1912-8-3 3973 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  POM232036  Lotus unifoliolatus I. L. Wiggins 1930-7-22 4689 Humboldt Along bank of Redwood Creek btwn Blue Lake and Willow Creek. Comment
  RSA406270  Lotus unifoliolatus Bonnie C. Templeton 1931-10-15 s.n. Humboldt Eureka Comment
  POM276696  Lotus unifoliolatus Lyman Benson 1928-7-11 433 Humboldt Weott Ranger Station. 61 Comment
  HSC95074  Lotus unifoliolatus var. unifoliolatus Andrea Pickart 2002-7-2 157 Humboldt Humboldt Bay Dunes, Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  UC1197305  Lotus wrangelianus Joseph P. Tracy 1932-5-1 9844 Humboldt Alton, along Van Duzen River North Coast Ranges, Van Duzen River 30 Comment
  UC162837  Lotus wrangelianus Joseph P. Tracy 1903-5-23 1901 Humboldt Alder Point, along Eel River Northern Coast Ranges, Eel River 152 Comment
  UC1223280  Lupinus adsurgens Joseph P. Tracy 1950-6-18 18849 Humboldt Wilder Ridge Comment
  UC15888  Lupinus adsurgens Chesnut and Drew 1888-7-21 Humboldt South Fork Mt.; ; S of Fort Mt., Humboldt Co. Comment
  HSC99728  Lupinus albicaulis M. A. Baker 1979-6-7 797 Humboldt Along road to Telescope Peak next to stream between Telescope Peak and Snow Mtn. 915 Comment
  HSC104446  Lupinus bicolor Jeff Barrett 2009-5-8 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC71467  Lupinus bicolor J. P. Smith, J. O. Sawyer 1973-5-12 6680 Humboldt 3.3 mi. from Redwood Creek on Hoopa Rd. Comment
  HSC78624  Lupinus bicolor L. P. Janeway 1984-5-16 785 Humboldt N Spit of Humboldt Bay, W side of Samoa Rd. just N of the boat ramp 3 Comment
  CAS-BOT-BC205382  Lupinus elmeri Charles Piper Smith 1947-7-14 47668 Humboldt Blake Lookout Road, South Fork Mountain, 0.3 miles north of Hyampom trail sign Comment
  HSC103130  Lupinus elmeri M. Mesler 2009-7-31 814 Humboldt South Fork Mtn. FS 1, 7.7 miles north of intersection with 4N12 1767 Comment
  RSA161252  Lupinus latifolius subsp. latifolius Peter H. Raven, R. Snow 1958-7-20 13645 Humboldt 1.1 miles south of junction of Friday Ridge Road on Titlow Hill Road, near Grouse Ridge. Comment
  HSC63290  Lupinus latifolius subsp. viridifolius M. A. Baker 1979-6-27 938 Humboldt Jct. of Tish Tang A Tang Creek and trail through Grogan's Hole 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
  UC169334  Lupinus latifolius var. latifolius Joseph P. Tracy 1912-7-26 3863 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC865316  Lupinus luteolus C. L. Hitchcock and J. S. Martin 1939-7-11 5421 Humboldt 65 mi e Arcata; e of Arcata 457 Comment
  UC502998  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1932-7-14 10558 Humboldt Wet Meadow at Corral Prairie Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  HSC14893  Lupinus rivularis S. S. Stutz 1963-4-28 32 Humboldt 7 mi. SE of Arcata, on Fickle Hill Rd. Comment
  UCD170581  Lupinus rivularis Gordon Leppig 1998-4-7 731 Humboldt Rt. 299. 396 Comment
  SEINET10450622  Lupinus sellulus var. lobbii Thomas W. Nelson, Jane P. Nelson 1976-6-15 Nelson 2710 Humboldt Growing on serpentine along old trail from lookout to blocksburg. 1524 Comment
  HSC58602  Lupinus tracyi G. L. Clifton, Griswold 1979-7-25 10843 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC59591  Lupinus variicolor Rick Lundquist 1979-4-6 2 Humboldt Arcata, SE Corner of 7th and Union St. 24 Comment
  HSC93220  Lupinus variicolor Ananda Dickie, Wendy Hooper, Rose Madrone, Kyla Waddell 1996-5-12 57 Humboldt Arcata bottoms, intersection of Janes Rd. and Jackson Ranch Rd., 200 m E of the Simpson Administration Bldg. 24 Comment
  UC1103681  Luzula comosa Joseph P. Tracy 1906-5-20 2460 Humboldt at Eureka Northern Coast Region, at Eureka 0 Comment
  JEPS67158  Luzula macrantha Joseph P. Tracy 1926-5-2 7446 Humboldt Near Ruby Creek, Willow Creek Canyon, Northern Coast Ranges, 609 Comment
  UC249749  Luzula macrantha Joseph P. Tracy 1923-6-3 6257 Humboldt Northern Coast Ranges. Kneeland Prairie 762 Comment
  HSC39164  Luzula parviflora D. E. Anderson, J. P. Smith 1971-6-28 - 1239 Humboldt Along Mad River, 2 mi. S of Blue Lake Comment
  UC524369  Lycopodiella inundata Ira L. Wiggins 1932-7-19 5893 Humboldt low swamp at s end Big Lagoon Comment
  CAS-BOT-BC61934  Lycopodium clavatum Donald Branscomb 1959-9-1 s.n. Humboldt Trinidad Comment
  UC1198266  Lysichiton americanus Joseph P. Tracy 1947-5-24 17690 Humboldt Big Lagoon 9 Comment
  POM68322  Lysichiton americanus Marcus E. Jones 1924-05 s.n. Humboldt Scotia. [county not specified] Comment
Read comments Dec 31 2015
  UCD138081  Lysichiton americanus P. B. Kennedy 1926-3-17 s.n. Humboldt on Highway 5 miles south of Eureka. Comment
  RSA0023106  Lythrum Robert F. Thorne, Percy C. Everett 1965-8-8 35251 Humboldt North edge of Eureka, east of Highway 101 5 Comment
  UC1198468  Lythrum hyssopifolia Joseph P. Tracy 1917-6-19 4725 Humboldt forks of Dobbyn Creek, Northern Coast Ranges Dobbyn Creek; Northern Coast Ranges, Dobbyn Creek 182 Comment
  HSC59797  Lythrum hyssopifolia Clark L. Miller 1979-5-19 1148 Humboldt Along Samoa Blvd. before railroad tracks, 4 mi. W of Arcata. Comment
  RSA0015872  Lythrum hyssopifolia Joseph P. Tracy 1927-8-7 8321 Humboldt Lack Pond; in Trinity River Valley, opposite mouth of Willow Creek. 152 Comment
  CAS-BOT-BC342808  Madia elegans L. R. Abrams 1918-6-15 7120 Humboldt Brannan Mt near Willow Creek 1371 Comment
  HSC100440  Madia elegans Carl C. Marshall Jun 1885 97 Humboldt Hills. Comment
  CAS-BOT-BC343022  Madia gracilis Ira L. Wiggins 1930-7-11 4679 Humboldt Near Samoa Comment
  HSC58706  Madia gracilis Griswold, Butler 1979-7-10 7133 Humboldt Near Board Camp Mtn., close to the town of Willow Creek. 1350 Comment
  JEPS40388  Madia gracilis W. L. Jepson 1932-7-26 16405 Humboldt Bull Creek 106 Comment
  UC717988  Madia gracilis David D. Keck 1944-7-11 5500 Humboldt 12.3 mi se of Petrolia; Mattole River, between Upper Mattole and Honeydew Comment
  UC175981  Madia gracilis Joseph P. Tracy 1908-6 2796 Humboldt Valley of Van Duzen River; Northern Coast Ranges, Buck Mountain 762 Comment
  UC495629  Madia gracilis Joseph P. Tracy 1927-7-4 8229 Humboldt Lawrence Creek, at crossing of the Kneeland Road 609 Comment
  POM51394  Madia madioides L. R. Abrams 1916-7-11 6017 Humboldt Mouth of Grizzly Creek on Van Duzen River. Comment
  CAS-BOT-BC343594  Madia sativa Doris K. Kildale 1925-7-28 1093 Humboldt Riverside on the Van Duzen River near Strong's Station Comment
  UC495630  Madia sativa Joseph P. Tracy 1927-6-18 8176 Humboldt three mi s of point Cape Mendocino (southwestern slopes, fronting the ocean); Northern Coast Ranges, Cape Mendocino 3 Comment
  UCD20674  Mahonia nervosa A. T. Leiser 1980-7-9 s.n. Humboldt Humboldt County, Redwood National Park, Hwy 101 reroute. Comment
  RSA244984  Maianthemum dilatatum M. N. Gold 1966-5-15 25 Humboldt Dry Lagoon State Park, 13 miles north of Trinidad Comment
  SBBG114438  Maianthemum dilatatum D. Leaberry 1990-9-24 Humboldt Prairie Crk Comment
  SD53198  Maianthemum dilatatum Darley F. Howe 1962-5-21 Humboldt 35.5 miles north of Garberville, on #101. 60 Comment
  UCSB27865  Maianthemum racemosum Phelps, M. 1972-3-19 Humboldt 1.5 miles from Barberville along Old Briceland Rd., 0.5 miles north of roadside. 213 Comment
  HSC12251  Maianthemum racemosum subsp. amplexicaule Gary J. Stebbins 1970-4-5 56 Humboldt Along rd. to Maple Creek 1.6 mi. W of bridge over Mad River Comment
  HSC45493  Maianthemum racemosum subsp. amplexicaule Maralyn O'Meara 1972-6-8 105 Humboldt Along Bald Hills Rd., 18 mi. from junction with Hwy. 101 Comment
  UC481090  Malacothrix floccifera P. E. Goddard 1906-6 662 Humboldt Lasseck Peak Comment
  UC565510  Malacothrix floccifera H. L. Mason 1928-7-14 4906 Humboldt near Garberville; East Fork of Eel River Comment
  UC1223205  Malacothrix floccifera Joseph P. Tracy 1950-6-15 18784 Humboldt 7 mi n Harris (Jenk's Ranch) Comment
  POM87681  Malus fusca L. R. Abrams 1922-6-25 8280 Humboldt Big Lagoon. South of Orick. Comment
  UC1198476  Marah oregana Joseph P. Tracy 1927-6-8 8109 Humboldt Trinidad Northern Coast Ranges 60 Comment
  UC505101  Marah oregana Joseph P. Tracy 1929-4-28 8543 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC12785  Marah oregana M. J. Athey 1970-11-2 7 Humboldt Trinidad, just after Westhaven turnoff on Hwy. 101, and Havenway Comment
  HSC99663  Marah oregana N. D. Dennis 1965-4-29 35 Humboldt 3 mi. N of Eureka on Old Arcata Rd. Comment
  RSA144006  Marah oregana P. H. Raven, Richard Snow 1958-7-21 13650 Humboldt 2.9 miles south of Ferndale on road to Cape Mendocino Comment
  RSA246904  Matricaria matricarioides R. F. Thorne, Percy C. Everett 1965-8-8 35269 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  UCD106774  Medicago arabica W. Williams 1951-5-11 s.n. Humboldt location unknown. Comment
  JEPS65521  Medicago lupulina Lincoln Constance 1934-5-26 671 Humboldt Dyerville Bridge South Fork Eel River, Bull Creek Region (s end) 45 Comment
  UC16107  Medicago lupulina Joseph Burtt Davy and Walter C. Blasdale 1899-6-15 5532 Humboldt near Scotia Comment
  CAS-BOT-BC269349  Melica californica Joseph P. Tracy 1927-5-14 7999 Humboldt Northern Coast Ranges. Trinity River Valley, near the South Fork 182 Comment
  UC1103760  Melica californica Joseph P. Tracy 1950-6-15 18780 Humboldt 5 mi n Harris; Mail Ridge 944 Comment
  UCD87157  Melica californica A. H. Murphy 1951-6-12 57 Humboldt Fleming range plant count area on Ft. Seward ranch, south fork of the Eel River Drain. Comment
  CAS-BOT-BC281323  Melica harfordii L. R. Abrams 1918-6-16 7156 Humboldt Willow Creek Comment
  UC277171  Melica harfordii Joseph P. Tracy 1921-6-19 5833 Humboldt Berry's Mountain; Northern Coast Ranges 914 Comment
  UCD87509  Melica harfordii August L. Hormay 1932-5-12 s.n. Humboldt Bull Creek Road, Redwood Highway, north of Garberville. Comment
  UC552689  Melica stricta Joseph P. Tracy 1935-7-28 14333 Humboldt Head of Brett Hole; Trinity Summit 1828 Comment
  CAS-BOT-BC262467  Melica subulata Joseph P. Tracy 1935-5-25 13898 Humboldt North Coast Ranges. Dobbyn Creek 152 Comment
  UC552705  Melica subulata Joseph P. Tracy 1935-7-25 14224 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  UC552706  Melica subulata Joseph P. Tracy 1935-5-25 13898 Humboldt Dobbyn Creek; Northern Coast Ranges 152 Comment
  UCD88652  Melica subulata A. H. Murphy 1951-5-18 41 Humboldt K. Roscoe Ranch, Upper Mattole. Comment
  UCD88654  Melica subulata A. H. Murphy 1951-6-25 67 Humboldt Snow Camp Meadow. 8 miles e.n.e of Kneeland. Comment
  HSC15015  Melilotus indicus W. F. Nickel 1965-5-16 Humboldt N Arcata in front of the College Cleaners Comment
  HSC25761  Melilotus officinalis Jana Kattenhorn 1970-10-14 45 Humboldt Big Lagoon Comment
  UC1222473  Melilotus officinalis Joseph P. Tracy 1949-7-7 18337 Humboldt Blue Slide Van Duzen River 91 Comment
  HSC22008  Mentha pulegium Thomas W. Nelson 1970-10-18 250 Humboldt Beside Hwy. 101, 100 yds. N of bridge over Mad River Comment
  RSA167435  Mentha spicata Joseph P. Tracy 1950-9-22 19370 Humboldt Klamath River near Slate Creek; below Orleans 8 miles. 122 Comment
  UC562530  Mentzelia dispersa Joseph P. Tracy 1933-7-26 12916 Humboldt North Coast Ranges, Grouse Mountain 1524 Comment
  HSC102515  Micranthes nidifica M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1501 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC38098  Micropus californicus var. californicus Thomas W. Nelson, James Nelson 1976-5-30 2621 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1199338  Micropus californicus var. californicus Joseph P. Tracy 1919-5-31 5150 Humboldt near Mouth of Willow Creek; Northern Coast Region, Valley of the Trinity River 152 Comment
  UC1223202  Microseris acuminata Joseph P. Tracy 1948-6-13 18058 Humboldt roadside 3 mi w Harris 762 Comment
  RSA0106589  Microseris laciniata Joseph P. Tracy 1947-6-8 17706 Humboldt Carlotta; open flat by old Strong's District School House, 5 miles east of town. 61 Comment
  UC302297  Microseris laciniata subsp. leptosepala Joseph P. Tracy 1926-5-2 7438 Humboldt near South Fork Trinity River (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC103080  Microseris nutans Sydney Carothers 2014-6-12 14 Humboldt Six Rivers National Forest, Lassics Botanical Area, north slope Red Lassic 1712 Comment
  CHSC57439  Microsteris gracilis L. P. Janeway 1984-6-23 898 Humboldt Titlow Hill. 1478 Comment
  HSC102528  Microsteris gracilis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1515 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC99424  Mimulus breweri K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-1 73 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
  RSA43890  Mimulus cardinalis H. M. Pollard 1947-8-30 s.n. Humboldt North Road along Klamath River near Redcap Creek. Orleans region. Comment
  HSC20711  Mimulus dentatus P. Markle 1962-5-16 34 Humboldt Along road to City of Arcata reservoir Comment
  HSC97545  Mimulus guttatus Ivy Watson 2008-9-28 31 Humboldt Beach N of river mouth, along small tributary E of sand dunes 4 Comment
  JEPS86884  Mimulus guttatus David M. Thompson 1986-3-26 856 Humboldt 100 ft s Siskiyou Co. line (along Hwy 96, Somes Bar, at confluence of rivers); Klamath River, Salmon River 61 Comment
  HSC20754  Mimulus guttatus D. E. Anderson 1963-5-18 2442 Humboldt 1.4 mi. W of Berry Summit Comment
  HSC22508  Mimulus guttatus W. B. Thompson 1967-7-20 17 Humboldt Along creek W of the access road to Clam Beach Co. Park Comment
  JEPS25699  Mimulus guttatus P. C. Hutchison 1961-5-22 2033 Humboldt 1/2 mi above Somes Bar (Hiway 299 ca. 100 ft. from Siskiyou Co. line) Comment
  RSA555245  Mimulus guttatus Robert F. Thorne, Percy C. Everett 1965-8-9 35317 Humboldt Clam Beach County Park: along highway. 3 Comment
  UC582478  Mimulus inodorus Joseph P. Tracy 1937-8-12 15655 Humboldt Snow Camp 1402 Comment
  UC582714  Mimulus inodorus Joseph P. Tracy 1935-7-23 14165 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  CDA41715  Mimulus kelloggii K. Esau 1935-4-23 s.n. Humboldt Ft. Seward. 0 Comment
  UC1196806  Mimulus kelloggii Joseph P. Tracy 1947-4-20 17671 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC673219  Mimulus kelloggii Lincoln Constance, Reed C. Rollins 1942-5-12 2894 Humboldt 1 mi s Somes Bar (bluffs at junction of rivers); Klamath-Siskiyou region, Klamath and Salmon rivers 152 Comment
  HSC44556  Mimulus moschatus Brad Klipfel 1973-7-15 175 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC74503  Mimulus moschatus Gail Newton 1980-8-10 2052 Humboldt Near Blake Mtn. 1707 Comment
  HSC32277  Mimulus nanus var. nanus D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5626 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  JEPS86687  Mimulus nanus var. nanus L. R. Heckard with T. I. Chuang 1990-7-15 6770 Humboldt below and s of road South Fork Mountain (summit of Blakes Mountain); , Blakes Mountain 1800 Comment
  UC582710  Mimulus nasutus Joseph P. Tracy 1933-5-20 12252 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  UC1103329  Mimulus primuloides Joseph P. Tracy 1935-7-26 14259 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  HSC55325  Mimulus primuloides var. primuloides Griswold, Butler 1979-7-12 7155 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC1198870 Image available Mitella diversifolia Joseph P. Tracy 1935-7-22 14123 Humboldt near Forks of Tish-Tang-A-Tang Creek; Trinity Summit 1371 Comment
  HSC41843  Mitella ovalis N. G. Sugihara 1977-4-23 9 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  JEPS49691  Mitella ovalis Joseph P. Tracy 1923-4-8 6176 Humboldt Carlotta Northern Coast Ranges (along stream) 60 Comment
  HSC96209  Moehringia macrophylla Rick Lindquist, C. Riley 2005-6-3 2 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1205 Comment
  JEPS79819  Moehringia macrophylla Joseph P. Tracy 1935-7-25 14225 Humboldt near Corral Prairie (Trinity Summit); , near Corral Prairie 1584 Comment
  UCD98355  Moehringia macrophylla D. C. Hagar 1957-5-16 94 Humboldt Happy Camp Mountain, 7.5 miles southeast of Willow Creek and 5.25 milse northeast of Salyer. 1219 Comment
  HSC57942  Monardella glauca G. L. Clifton, Griswold 1979-7-31 11612 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC58020  Monardella odoratissima subsp. pallida G. L. Clifton 1979-7-31 11822 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UCR15548  Monardella villosa subsp. subserrata George K. Helmkamp 1978-7-15 s.n. Humboldt Prairie Creek Redwoods State Park 305 Comment
  RSA0022786  Monardella villosa subsp. subserrata F. W. Peirson 1926-7-13 7050 Humboldt Near Blue Lake, Mad River Comment
  UC1225847  Monardella villosa subsp. villosa Joseph P. Tracy 1946-7-21 17619 Humboldt Blue Slide Van Duzen River 91 Comment
  UC2035936  Monardella villosa subsp. villosa C. Epling, Wm. Robison 1935-7-24 Humboldt Dyerville Comment
  UC577342  Monardella villosa subsp. villosa Joseph P. Tracy 1937-7-11 15428 Humboldt Vicinity Garberville 121 Comment
  JEPS13817  Moneses uniflora Joseph P. Tracy 1926-5-22 7515 Humboldt Northern Coast Ranges, Prairie Creek Prairie Creek; Northern Coast Ranges, Prairie Creek 152 Comment
  UC1223242  Montia chamissoi Joseph P. Tracy 1951-6-14 19415 Humboldt Snow Camp Meadows Comment
  CAS-BOT-BC444831  Montia fontana D. E. Anderson; Thomas Nelson; S. Dowty 1972-6-14 5587 Humboldt Mt. Lassic & two smaller peaks to immediate east. 1767 Comment
  BLMAR621  Montia howellii Jennifer Anthony-Wheeler 2009-5-20 521 Humboldt Lacks Creek, On main westside road on vernally wet inboard ditch behind gate 853 Comment
  CAS-BOT-BC445163  Montia parvifolia Harley P. Chandler 1901-5-1 1261 Humboldt North Coast Ranges. Redwood Belt 152 Comment
  HSC55086  Montia parvifolia G. L. Clifton, Terry Griswold 1979-7-31 11753 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  JEPS17216  Montia parvifolia Lincoln Constance 1934-5-31 744 Humboldt Bull Creek Flat, along Bull Creek (from w boundary of Park to Grasshopper Peak (Squaw Creek) road, n side of creek, South Fork Eel River); Bull Creek Region, South Fork Eel River, Bull Creek Comment
  RSA739606  Montia parvifolia John Dittes, Josephine Guardino 2003-6-7 2003 -64 Humboldt Outer N coast Range, 2.9 air mile NW of Legget, 5.2 air mile SE of Piercy, shaded rocks on eastern bank of S Fork Eel River. 183 Comment
  CAS-BOT-BC445154  Montia parvifolia A. M. Vollmer; L. Beane 1951-6-11 142 Humboldt Along Van Duzen River, at Bridgeville Comment
  HSC37958  Morella californica Peter Sorensen 1976-6-12 Humboldt Woodley Island, Humboldt Bay Comment
  HSC63080  Morella californica David Wheeler 1979-4-30 89 Humboldt 910 Gwinn St., McKinleyville Comment
  UC526744  Muhlenbergia filiformis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8920 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain (in wet meadow) 1676 Comment
  UC526746  Muhlenbergia filiformis Joseph P. Tracy 1933-7-25 12833 Humboldt moist gravelly flat North Coast Ranges, Grouse Mountain 1524 Comment
  CAS-BOT-BC101666  Myrica californica Alice Eastwood 1907-4-21 39 Humboldt Port Trinidad Comment
  UC562532  Myriophyllum aquaticum Joseph P. Tracy 1933-7-20 12810 Humboldt Along Mad River, near Blue Lake. 15 Comment
  HSC13467  Myriophyllum aquaticum Anonymous 1957-5-12 148 Humboldt 1.5 mi. S of Fields Landing Comment
  HSC77877  Myriophyllum hippuroides J. M. Handley 1977-11-28 771128 .1 Humboldt Lake Prairie, Snow Camp Rd., E of Maple Creek 1067 Comment
  UCD87653  Nassella pulchra A. H. Murphy 1951-3-30 s.n. Humboldt Mattole Valley. Along roadside near Mattole River Grange Hall. Comment
  CAS-BOT-BC60344  Nasturtium officinale Kenneth Clark 1980-5-10 650 Humboldt Shelter Cove. Point Delgada. On Western beach coastal bluffs. 6 Comment
  HSC12786  Nasturtium officinale M. J. Athey 1970-10-28 5 Humboldt Along old road to Trinidad, along E bank, Trinidad Comment
  UC908512  Navarretia atractyloides Joseph P. Tracy 1925-7-12 7206 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC54718  Navarretia capillaris Overton, Butler 1979-7-26 10083 Humboldt Near Cold Spring, close to the town of Willow Creek 1417 Comment
  HSC44287  Navarretia divaricata J. P. Smith, Steve Selva 1970-6-30 4098 Humboldt Comment
  UC133919  Navarretia intertexta Harley P. Chandler Jun 1901 1411 Humboldt Klamath River North Coast Ranges 243 Comment
  HSC96932  Navarretia intertexta subsp. propinqua Elizabeth Kimbrough, Whitney Meier 2007-6-13 9 Humboldt Grouse Mtn., 1 mi. E of NF1 on USFS 5N04 1524 Comment
  SEINET202730  Navarretia pubescens Joseph P. Tracy 1950-6-23 18861 Humboldt Dobbyn Creek, 3 miles NE of Alderpoint. 213 Comment
  JEPS70471  Navarretia squarrosa Joseph P. Tracy 1921-7-23 5857 Humboldt Dows Prairie Northern Coast Ranges, Dows Prairie 60 Comment
  UCD48693  Navarretia squarrosa John M. Tucker 1948-9-4 1862 Humboldt Beck's Ranch, Hydesville, Humboldt County, California. Comment
  UCD39801  Navarretia tagetina Joseph P. Tracy 1942-7-18 17289 Humboldt Garberville. 152 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
  CAS-BOT-BC7214  Nemophila macrocarpa William Wightman Price 1890-7-1 s.n. Humboldt Jarnagan Comment
  HSC45622  Nemophila menziesii Diane L. Reed 1978-4-22 28 Humboldt Tish Tang Campground, 5 miles north of Willow Creek on State Hwy. 96. Comment
  UC1222905  Nemophila menziesii Joseph P. Tracy 1950-4-20 18609 Humboldt 1/2 mi w Dinsmore's; w of Dinsmore's Comment
  JEPS1883  Nemophila menziesii var. atomaria Joseph P. Tracy 1932-5-10 9928 Humboldt Bear River Ridge , Bear River Ridge (Northern Coast Ranges) 609 Comment
  UC177199  Nemophila menziesii var. atomaria Joseph P. Tracy 1913-6-13 4094 Humboldt opposite Buck Mountain (in valley of Van Duzen River); Northern Coast Ranges, in valley Van Duzen River, Buck Mt 762 Comment
  JEPS2987  Nemophila parviflora Lincoln Constance 1934-5-23 606 Humboldt se slope of mt. above Look Prairie (South Fork Eel River, Bull Creek Region); Bull Creek Region, South Fork Eel River, above Look Prairie 365 Comment
  CAS-BOT-BC60546  Noccaea fendleri subsp. californica Doris K. Kildale 1926-3-21 1581 Humboldt Kneeland Prairie. 853 Comment
  HSC6970  Noccaea fendleri subsp. glauca Lincoln Constance, R. C. Rollins 1942-5-12 2887 Humboldt Klamath River, 7 mi. NE of Weitchpec 122 Comment
  POM266040  Noccaea fendleri subsp. glauca Lincoln Constance, Reed C. Rollins 1942-5-11 2877 Humboldt Hoopa Valley, 5 miles south of Hoopa. 122 Comment
  UCR45372  Notholithocarpus densiflorus var. densiflorus Barry Silver 1986-4-13 505 Humboldt Bair Road, 6.4 mi. WSW of Hoopa Comment
  HSC37836  Notholithocarpus densiflorus var. echinoides Thomas W. Nelson, Jane P. Nelson 1976-2-21 2247 Humboldt Beside the Hoopa-Redwood Valley Rd. ca. 5 mi. W of Hoopa Comment
  HSC48251  Nuphar polysepala James Hansen 1975-5-28 Humboldt Essex pond on Essex Ranch, .5 mi. N of Hwy. 299 near Blue Lake Comment
  UCD124038  Nuttallanthus texanus Linda M. Barker 1976-6-1 1550 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  HSC20655  Nuttallanthus texanus Francis Winter 1960-4-19 Humboldt Samoa Peninsula, Fairhaven Airport entrance, 12 mi. W of Arcata Comment
  CHSC35519  Oemleria cerasiformis Thomas Nelson 1976-3-22 2276 Humboldt On hillside beside Eureka Muni. Golf Course. Comment
  UC666832  Oemleria cerasiformis Joseph P. Tracy 1937-6-20 15356 Humboldt 10 mi up stream mouth of Bear River; Bear River 152 Comment
  UC666834  Oemleria cerasiformis Joseph P. Tracy 1937-4-3 15249 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC666835  Oemleria cerasiformis Joseph P. Tracy 1937-4-3 15250 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UCD127734  Oenanthe pimpinelloides Joseph P. Tracy 1950-6-23 18874 Humboldt Larrabee Creek, 3 miles north of Blocksburg. 457 Comment
  UC666999  Olsynium douglasii var. douglasii Joseph P. Tracy 1930-5-25 8704 Humboldt Larrabee Valley 731 Comment
  HSC100380  Orobanche uniflora J. McRae 2010-6-23 Humboldt Swim Ridge (Black Rock Mountain West), off Ruth Rd. (CR 504) and F.S. Rd. 27N02. 1329 Comment
  UC1197450  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1908-6 2881 Humboldt Valley of Van Duzen River, opposite Buck Mountain. Comment
  HSC54678  Orthilia secunda Overton, Butler 1979-7-26 9942 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  UC32669  Orthilia secunda Chestnut and Drew 1888-7-21 Humboldt South Fork Mts. Comment
  HSC73605  Orthocarpus cuspidatus subsp. copelandii M. A. Baker 1980-7-22 3096 Humboldt Near Grogan Hole. 1676 Comment
  HSC34279  Orthocarpus imbricatus K. Irwin 1975-8-13 Humboldt N Trinity Mtn. area below Mill Creek Lakes Comment
  UC168993  Orthocarpus imbricatus Mrs. M. H. Manning Aug. 1899 Humboldt Trinity Summit Comment
  HSC56304  Osmorhiza berteroi Overton, Butler 1979-8-2 12611 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC76401  Osmorhiza berteroi Denis Kearns 1981-7-23 388 Humboldt Near Whiteys Peak 732 Comment
  UCR123963  Osmorhiza chilensis George K. Helmkamp, E. A. Helmkamp 2001-7-8 6973 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
  UC314578  Osmorhiza occidentalis Joseph P. Tracy 1926-5-15 7474 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC176987  Oxalis albicans subsp. pilosa Joseph P. Tracy 1912-6-9 3682 Humboldt Alton Northern Coast Ranges 30 Comment
  CHSC23900  Oxalis oregana D. G. Houston 1966-3-5 7 Humboldt Six miles up Fickle Hill Rd. 609 Comment
  JEPS43138  Oxalis oregana W. L. Jepson 1934-5-7 16696 Humboldt Bull Creek Comment
  UCD110986  Oxalis oregana K. Twitchell 1996-5-11 24 Humboldt Crannell, coastal cliffs along old Highway 101 at Moonstone beach access. 36 Comment
  HSC16715  Oxalis pes-caprae W. F. Nickel 1965-5-15 Humboldt W side of College Elementary School, H.S.C. Campus Comment
  UC34654  Packera bolanderi var. bolanderi Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  SEINET200360 Image available Paeonia brownii Joseph P. Tracy 1938-6-13 15920 Humboldt Grouse Mountain at 'Cold Springs 1430 Comment
  UC668274  Paeonia brownii Joseph P. Tracy 1938-6-13 15920 Humboldt Cold Springs Grouse Mountain 1432 Comment
  CAS-BOT-BC253705  Panicum capillare A. A. Heller 1924-7-20 13864 Humboldt Along the Eel River at Phillipsville Comment
  UC184379  Panicum capillare Joseph P. Tracy 1912-10-20 4009 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC535745  Panicum capillare Eleanor Armstrong 1147 Humboldt Richardson Grove Comment
  RSA54133  Panicum oligosanthes var. scribnerianum Henry M. Pollard 1946-8-27 s.n. Humboldt South side of Klamath River, near Boyce Creek Orleans region Comment
  UC1103787  Parapholis incurva Joseph P. Tracy 15871 Humboldt Samoa Comment
  POM126156  Paxistima myrsinites Joseph P. Tracy 1922-4-30 6042 Humboldt Brannan Mountain. viz. ridge north of Willow Creek, between Willow and Campbell Creeks. 915 Comment
  UC1199003  Paxistima myrsinites Joseph P. Tracy 1913-7-20 4373 Humboldt near summit between Redwood Creek and Three Creeks (above Three Creeks); Northern Coast Ranges 1066 Comment
  UC582557  Pedicularis densiflora Joseph P. Tracy 1926-5-2 7426 Humboldt near the South Fork; Trinity River Valley 182 Comment
  HSC20931  Pedicularis densiflora N. J. Cole 1965-3-19 3 Humboldt 5 mi. S of Weitchpec along Hwy. 96 Comment
  UC1245386  Pedicularis groenlandica Joseph T. Gregory 1935-7-30 851 Humboldt at head of Virgin Creek; Salmon Summit 1828 Comment
  POM266544  Pedicularis racemosa Lester Rowntree 1937-8-9 s.n. Humboldt Summit Happy Camp Rd. Comment
  JEPS19083  Pellaea brachyptera Joseph P. Tracy 1937-7-24 15516 Humboldt Devil's Hole Trinity Summit 1676 Comment
  HSC55753  Penstemon anguineus G. L. Clifton, Terry Griswold 1979-7-26 10285 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC76257  Penstemon anguineus Teresa Prendusi 1981-7-24 482 Humboldt Near Whiteys Peak 1585 Comment
  RSA43896  Penstemon anguineus H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1372 Comment
  JEPS27375  Penstemon anguineus H. W. Grinnell 1932-7-19 33 Humboldt McKay Camp South Fork Mt. 1676 Comment
  UC1198045  Penstemon anguineus Harold E. Parks and Joseph P. Tracy 1949-6-25 11666 Humboldt at Mud Springs on Trinity Summit Trinity Summit, at Mud Springs 1524 Comment
  HSC41280  Penstemon laetus subsp. sagittatus Brad Klipfel 1974-6-25 441 Humboldt Horse Mtn., along ridge running to the E of Horse Mtn. proper Comment
  HSC96936  Penstemon laetus subsp. sagittatus Whitney Meier, Elizabeth Kimbrough 2007-6-11 5 Humboldt Cold Springs Camp, 14.1 mi. S of Hwy. 299 on FS Rd. NF1 Comment
  HSC55841  Penstemon newberryi subsp. berryi G. L. Clifton, Terry Griswold 1979-7-25 10792 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC56115  Penstemon newberryi subsp. berryi Gilbert Muth 1979-8-1 11886 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  RSA517741  Penstemon newberryi subsp. berryi W. K. Parks 1933-07 s.n. Humboldt South Fork Mountain. Comment
  JEPS26260  Penstemon newberryi var. berryi Joseph P. Tracy 1933-7-16 12786 Humboldt South Fork Mountain, near McKay Camp Northern Coast Ranges 1676 Comment
  CAS-BOT-BC71616  Pentagramma triangularis subsp. triangularis Volney Rattan 1879-1-1 s.n. Humboldt unspecified Comment
  UC205464  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1920-8-29 5392 Humboldt Dows Prairie Northern Coast Ranges 60 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
  HSC75957  Perideridia parishii subsp. latifolia Overton, Butler 1979-7-24 9743 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  UC205465  Perideridia parishii subsp. latifolia Joseph P. Tracy 1919-9-18 5231 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  HSC17527  Persicaria maculosa Lincoln Constance 1934-6-12 861 Humboldt N bank of S Fork Eel River, Bull Creek Rd. Comment
  HSC42200  Phacelia bolanderi Ed Cope 1977-4-23 22 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  JEPS11985  Phacelia bolanderi Rimo Bacigalupi with G. T. Robbins 1954-6-28 4657 Humboldt 2 mi n Hoopa; Hoopa Indian Reservation, Trinity River 91 Comment
  POM287461  Phacelia bolanderi Lyman Benson 1928-7-12 484 Humboldt Woods across South Fork Eel River from Weott Ranger Station; seaward north coast mt. range. 61 Comment
  UC673279  Phacelia bolanderi Lincoln Constance and Reed C. Rollins 1942-5-20 2999 Humboldt Dyerville Bridge Klamath-Siskiyou region, Eeel River (2 mi n of Weott) 48 Comment
  HSC65624  Phacelia californica J. P. Smith 1973-5-26 6871 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC1199105  Phacelia egena Joseph P. Tracy 1938-5-1 15735 Humboldt Willow Creek Trinity River Valley (stony flat along river) 152 Comment
  JEPS1201  Phacelia malvifolia Joseph P. Tracy 1927-6-8 8118 Humboldt TRINIDAD Comment
  HSC57855  Phacelia mutabilis G. L. Clifton 1979-7-31 11371 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC41590  Phacelia mutabilis Thomas W. Nelson, Jane P. Nelson 1977-7-4 3615 Humboldt Alder Springs 1524 Comment
  JEPS81028  Phacelia nemoralis subsp. oregonensis James P. Smith 1973-5-26 6871 Humboldt near Rio Dell (bluffs along river); Eel River, Scotia Bluffs 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
  UCD88767  Phalaris californica Joseph P. Tracy 1938-6-7 15861 Humboldt N side of Mad River, 1/2 mile E of bridge on Arcata - Blue Lake highway. 30 Comment
  UC161489  Philadelphus lewisii Joseph P. Tracy 1911-7-5 3318 Humboldt Willow Creek Northern Coast Ranges (near its mouth, creek is tributary of Trinity River) 304 Comment
  RSA0057781  Philadelphus lewisii Joseph P. Tracy 1950-6-18 18853 Humboldt Along Redwood Creek, 2 miles W of Briceland. Comment
  HSC102142  Phleum alpinum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1048 Humboldt Patterson Meadows 1555 Comment
  UC1191121  Phlox douglasii subsp. rigida Joseph P. Tracy 1932-7-18 10699 Humboldt Head of Brett Hole Trinity Summit 1828 Comment
  UC1198559  Phlox gracilis Joseph P. Tracy 1932-4-24 9824 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  HSC21903  Phyllospadix scouleri D. E. Anderson 1963-10-28 2886 Humboldt Luffenholtz Beach Comment
  SEINET11763301  Phyllospadix torreyi H. E. Parks 1933-1 s.n. Humboldt Spruce Cove, Trinidad Comment
  HSC1354  Picea sitchensis J. W. Johnson 1962-4-29 1295 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata. Comment
  LA206239  Picea sitchensis Carl Epling; William Robison 1935-7-22 sn Humboldt near Patrick's Point Comment
  NY34413  Picea sitchensis E. Fritz 1935-8-16 8154 Humboldt Comment
  SJSU142  Picea sitchensis Emily D. Smith 1934-8-22 Humboldt between Fortuna & Eureka Comment
  HSC70580  Pinus attenuata Gail Newton 1980-7-24 1775 Humboldt Near Somes Mtn. 1615 Comment
  CAS-BOT-BC73288  Pinus contorta W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula. Comment
  HSC1487  Pinus contorta J. W. Johnson 1962-4-29 1294 Humboldt Ridge 8, Lanphere Farm, Samoa Peninsula Comment
  LA6061  Pinus contorta H. E. Parks; May 1931 sn Humboldt Samoa Comment
  UC665726  Pinus contorta subsp. contorta H. E. and S. T. Parks 1938-3-1 24125 Humboldt Spruce Cove Trinidad, Spruce Cove 60 Comment
  CAS-BOT-BC73151  Pinus jeffreyi Joseph P. Tracy; H. E. Parks 1934-6-14 11030 Humboldt Horse Mountain 1432 Comment
  RSA46498  Pinus monticola Doris K. Kildale 1927-3-27 2998 Humboldt 1 mile north of Trinidad. Comment
  RSA46657  Pinus monticola Doris K. Kildale 1937-8-12 15086 Humboldt South Fork Mountain. Comment
  CAS-BOT-BC79029  Pinus ponderosa Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1196420  Piperia elongata Joseph P. Tracy 1948-8-22 18100 Humboldt 5 mi e Carlotta (by old Strong's District School House) 60 Comment
  UC154179  Pityopus californicus Harley P. Chandler June, 1901 1299 Humboldt Hupa Indian Reservation North Coast Ranges 304 Comment
  UC582610  Plagiobothrys bracteatus Joseph P. Tracy 1936-6-3 14842 Humboldt opposite mouth of Willow Creek; Northern Coast Ranges, Trinity River Valley, Lack Pond 152 Comment
  UC1239619  Plagiobothrys nothofulvus Joseph P. Tracy 1933-5-20 12243 Humboldt Mattole Valley near Petrolia; Northern Coast Ranges 30 Comment
  UC1562526  Plagiobothrys nothofulvus Barbara Ertter with Thomas J. Delendick 1987-5-16 6929 Humboldt ca 15 air mi e Arcata (just w of Berry Summit on Hwy 299, on n side of road); Vista Point 914 Comment
  UC526808  Plagiobothrys nothofulvus Joseph P. Tracy 1925-5-30 7045 Humboldt McClellan Mountain Northern Coast Ranges 822 Comment
  UC552836  Plagiobothrys reticulatus Joseph P. Tracy 1935-6-8 13949 Humboldt along coast in front of s end Stone Lagoon; Dry Lagoon, Stone Lagoon 3 Comment
  UC1222219  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-12 17112 Humboldt Prairie Creek at the prairie at Elk Grove; Prairie Creek, Elk Grove Comment
  UC582612  Plagiobothrys reticulatus Joseph P. Tracy 1936-6-28 15009 Humboldt near Murphy Meadows (Bald Mountain); Bald Mountain 914 Comment
  JEPS60971  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1938-6-17 15963 Humboldt s point of Cape; Cape Mendocino 3 Comment
  JEPS60968  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1935-6-8 13949 Humboldt in front of South End of Stone Lagoon; Dry Lagoon 3 Comment
  JEPS60976  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1914-5-30 4486 Humboldt Hydesville 60 Comment
  UC1222203  Plagiobothrys scouleri Joseph P. Tracy 1949-6-25 18353 Humboldt Box Camp Trinity Summit 1463 Comment
  UC526813  Plagiobothrys tenellus Joseph P. Tracy 1932-5-17 10070 Humboldt Berry's Northern Coast Ranges, Redwood Creek 274 Comment
  JEPS6424  Plantago erecta Joseph P. Tracy 1917-5-30 4793 Humboldt mouth of Little River Northern Coast Ranges, Little River 6 Comment
  POM61512  Plantago hirtella var. galeottiana Joseph P. Tracy 1901-6-30 1212 Humboldt Immediate vicinity of Eureka. 0 Comment
  SEINET10782201  Plantago major J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13016 Humboldt On U.S. 101, near Holmes, 1.76 km south of Stafford Road. Comment
  CDA18205  Plantago maritima G. D. Barbe, T. C. Fuller 1974-6-17 1831 Humboldt North Coast Ranges; Lower Pacific Drive, S of sewage plant, W of golf course, at Sail Court, Shelter Cove. 60 Comment
  UC154020  Plantago subnuda J. P. Tracy 1903-8-9 1937 Humboldt immediate vicinity Eureka 0 Comment
  HSC55192  Platanthera dilatata var. leucostachys G. L. Clifton, Griswold 1979-8-2 12266 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC96478  Platanthera dilatata var. leucostachys Gordon Leppig 1997-6-19 442 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 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
  RSA382868  Platanthera leucostachys Brad W. Klipfel 1973-7-31 255 Humboldt Along ridge trail south east of North Trinity Mountain 1829 Comment
  CAS-BOT-BC91632  Platystemon californicus Alice Eastwood; John Thomas Howell 1937-6-22 4723 Humboldt Near Harris. Comment
  CAS-BOT-BC91637  Platystemon californicus M. Louise Hutchinson 1913-4-1 s.n. Humboldt Eureka. Comment
  UC1196297  Platystemon californicus H. E. Parks and Joseph P. Tracy 1930-5-25 8718 Humboldt Larrabee Valley; Northern Coast Ranges, Larrabee Valley 670 Comment
  UC146098  Platystemon californicus Joseph P. Tracy 1904-5-1 2046 Humboldt near Bucksport (region about Humboldt Bay); Northern Coast Region, region about Humboldt Bay 0 Comment
  UC169004  Plectritis brachystemon Joseph P. Tracy 1911-7-7 3381 1/2 Humboldt 3 mi nw of junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC169005  Plectritis brachystemon Joseph P. Tracy 1911-7-7 3381 Humboldt 3 mi nw of junction of Willow Creek with Trinity River (and near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC1239603  Plectritis congesta Joseph P. Tracy 1933-5-19 12199 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  HSC63190  Pleuricospora fimbriolata M. A. Baker 1979-6-28 942 Humboldt Middle fork of Mill Creek. Comment
  HSC102147  Pleuropogon refractus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1054 Humboldt Patterson Meadows 1555 Comment
  SEINET200752  Pneumonanthe oregana J. P. Tracy 1904-8-7 2140 Humboldt Immediate vicinity of Eureka. 0 Comment
  SEINET255064 Image available Poa annua J. P. Tracy 1914-7-5 4548 Humboldt Bald Mtn between High Prairie and Snow Camp Comment
  HSC40309  Poa bolanderi Thomas W. Nelson, Jane P. Nelson 1976-6-22 2846 Humboldt Along Rd. to Goat Hill. 1646 Comment
  RSA10143  Poa confinis Joseph P. Tracy, H. E. Parks 1927-4-24 7947 Humboldt Eureka 9 Comment
  UC207680  Poa douglasii Joseph P. Tracy 1917-5-30 4798 Humboldt at Little River Ocean Beach; Northern Coast Region Comment
  SEINET10659238  Poa douglasii Huron H. Smith 1911-1 Smith 3852 Humboldt Comment
  SEINET10855127  Poa kelloggii Joseph P. Tracy 1911-6-4 Tracy 3219 Humboldt Along Little River Humboldt County 5 miles from the coast. Comment
  HSC102626  Poa pratensis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1612 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC10751  Poa pratensis R. H. Berg 1963-4-27 55 Humboldt Prairie Creek State Park, N of Arcata. Comment
  HSC10770  Poa pratensis R. D. Zortman 1963-5-5 32 Humboldt 5 mi. NE of Arcata, S of the Mad River, off Warren Creek Rd. 91 Comment
  UC60226  Poa pratensis subsp. pratensis Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5432 Humboldt near Hubbards Comment
  HSC10379  Poa pringlei D. E. Anderson 1965-6-1 3765 Humboldt Horse Mountain. 1220 Comment
  HSC10714  Poa secunda subsp. secunda D. J. Wilder 1965-4-25 12 Humboldt Humboldt State College Campus, Laurel Dr. Comment
  HSC40520  Poa secunda subsp. secunda Thomas W. Nelson, Jane P. Nelson 1976-7-1 2927 Humboldt Along ridge W of Lassic Peak (Signal Peak). 1738 Comment
  UC180501  Poa secunda subsp. secunda Joseph P. Tracy 1913-6-14 4121 Humboldt opposite Buck Mt (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UCD91738  Poa secunda subsp. secunda A. H. Murphy 1951-4-18 s.n. Humboldt Tooby and Prior Ranch, Blocksburg. 457 Comment
  HSC31788  Poa trivialis Donald Spalinger 1974-4-20 20 Humboldt Across from 1756 Ridgewood Dr. 122 Comment
  UC1103187  Poa trivialis Joseph P. Tracy 1936-6-28 15015 Humboldt e of Korbel (Bald Mt, Murphy Meadows) 975 Comment
  UCD92111  Poa trivialis Joseph P. Tracy 1950-6-8 18723 Humboldt Bear River Ridge. 609 Comment
  UC1103182  Poa unilateralis Joseph P. Tracy 1904-5-1 2050 Humboldt bluff near Bucksfort; Northern Coast Ranges, Humboldt Bay 0 Comment
  RSA0022165  Pogogyne zizyphoroides Joseph P. Tracy 1946-5-30 17544 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town 61 Comment
  JEPS50522  Polygonum convolvulus Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  HSC55262  Polygonum douglasii Overton, Butler 1979-8-2 12600 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC56170  Polygonum douglasii G. L. Clifton, Griswold 1979-8-1 12063 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC175823  Polygonum lapathifolium Joseph P. Tracy 1912-10-20 4008 Humboldt Alton Northern Coast Region (bed of dried-up slough) 30 Comment
  POM312530  Polygonum lapathifolium S. Galen Smith, Malcolm A. Nobs 1949-8-9 1232 Humboldt Marshy pond on Southern side of the town of Blue Lake Comment
  HSC55190  Polygonum minimum G. L. Clifton, Griswold 1979-8-2 12250 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC56172  Polygonum minimum G. L. Clifton, Griswold 1979-8-1 12065 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC1713712  Polygonum parryi Joseph P. Tracy 1908-6 2932 Humboldt Buck Mountain Northern Coast Ranges (nw slope, ridge near water) 914 Comment
  JEPS50545  Polygonum persicaria W. L. Jepson 1936-8-17 17914 Humboldt 2 mi s Field's Landing (near Still's Ranch) Comment
  HSC45463  Polygonum polygaloides subsp. kelloggii Thomas W. Nelson, Jane P. Nelson 1978-7-2 4391 Humboldt SE of East peak of the Mount Lassic group 1616 Comment
  RSA13553  Polygonum spergulariiforme H. E. Parks, Joseph P. Tracy 1930-9-15 767 Humboldt Bald Hills Comment
  HSC34520  Polypodium californicum Thomas W. Nelson, J. D. Ackerman 1974-5-25 260 Humboldt S Trinidad Beach, S of Trinidad Head and Trinidad Comment
  UCD136882  Polypodium glycyrrhiza M. Wiesendanger 1928-4-7 902 Humboldt Redwood Highway, Lane's Redwood Flat, probably the Franklin K. Lane Grove. Comment
  UC197920  Polypodium glycyrrhiza Joseph P. Tracy 1914-6-7 4490 Humboldt N. Fork Eel River; Northern Coast Region 0 Comment
  UC249781  Polypodium glycyrrhiza Joseph P. Tracy 1924-2-24 6602 Humboldt along Eel River from S Fork to Scotia (near McKee's Mill); Northern Coast Ranges 60 Comment
  HSC26398  Polypodium scouleri T. O. Osborne 1970-9-16 33 Humboldt Trinidad Bay, Prisoner Rock Comment
  HSC1114  Polypodium scouleri D. E. Anderson 1961-8-25 1754 Humboldt 1.5 mi. S of Trinidad Comment
  RSA85053  Polypodium scouleri F. W. Peirson 1926-7-12 7039 Humboldt Hills north of inlet at Orick Comment
  CAS-BOT-BC233072  Polypogon interruptus Joseph P. Tracy 1930-6-29 8819 Humboldt Buck Mountain, lower foothills of its NW slope 762 Comment
  HSC72980  Polystichum imbricans Gail Newton 1980-7-15 1578 Humboldt Near Sims Mtn. 1311 Comment
  HSC76296  Polystichum imbricans Michael Ericksen 1981-8-24 1094 Humboldt Near Pilot Creek 951 Comment
  HSC76326  Polystichum imbricans Denis Kearns 1981-7-21 296 Humboldt Near Whiteys Peak 1585 Comment
  JEPS296  Polystichum munitum W. L. Jepson 1932-7-26 16406 Humboldt Bull Creek Comment
  HSC91600  Polystichum munitum E. Mackey 1986-10-2 Humboldt Patrick's Point State Park by trail to Agate Beach Comment
  HSC87081  Populus trichocarpa Anthony J. Desch, Bryon Cariss 1988-4-23 66 Humboldt 3.7 mi. N of Hwy. 299 on Stover Rd. 244 Comment
  JEPS64560  Populus trichocarpa W. L. Jepson 1902-8-4 2147 Humboldt Petrolia on the Mattole River, Petrolia (on the Mattole River, Expedition from Ukiah to the Hupa Indian Reservation) Comment
  UC672879  Potamogeton foliosus Joseph P. Tracy 1934-8-14 13567 Humboldt Eel River, Alton to Fortuna Eel River 15 Comment
  HSC59499  Potamogeton natans M. A. Ericksen 1979-4-20 209 Humboldt Northernmost Clam Beach ponds, .3 mi. S of Cranell Rd. and Little River Dr., 16 mi. N of Eureka Comment
  SEINET3837233  Potamogeton natans Unknownnown 1949-8-9 1229 Humboldt Marshy Pond 1 mile north of Arcata at junction of Highways 101 and 299, Mad River Valley Comment
  RSA246822  Potamogeton pusillus Robert F. Thorne 1965-9-19 35463 Humboldt Freshwater Lagoon S of Orick 3 Comment
  HSC102125  Potentilla drummondii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1029 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  CAS-BOT-BC142025  Potentilla drummondii Doris K. Kildale 1925-8-17 1233 Humboldt Waterdog Lake - Trinity Summit 1828 Comment
  HSC44511  Potentilla gracilis Brad Klipfel 1973-7-1 115 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC1541679  Potentilla gracilis var. gracilis H. E. Parks June, 1924 Humboldt Kneeland; Bald Hills, Kneeland Comment
  CAS-BOT-BC508640  Prosartes hookeri Doris K. Kildale 1926-7-22 2420 Humboldt Metropolitan, woods near Canyon Park Comment
  CAS-BOT-BC517504  Prosartes smithii H. C. Cantelow 1936-5-18 1342 Humboldt 3 miles E of Orick Comment
  CAS-BOT-BC517508  Prosartes smithii Ynez Whilton Winblad 1941-6-25 s.n. Humboldt Between Garberville and Pepperwood Comment
  CAS-BOT-BC517514  Prosartes smithii Kenneth Clark 1980-3-24 539 Humboldt Upper terrace of Dead Man's Gulch; Shelter Cove 76 Comment
  HSC34641  Prosartes smithii Thomas Anthony 1975-4-8 5 Humboldt NE of HSU tennis courts on E side of Fern Lake Comment
  SEINET12050891  Prosartes smithii F. H. Utech 1977-1 77 -370 Humboldt ca 4.5 mi S of Del Norte County line on US 101 enroute to Crescent City Comment
  SEINET12051380  Prosartes smithii F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -288 Humboldt Humboldt Redwoods State Park, Jensen Grove 50 Comment
  SEINET9325325  Prunella vulgaris Unknown 1934-5-6 Humboldt Fort Seward. Comment
  HSC39157  Prunella vulgaris subsp. lanceolata D. E. Anderson, J. P. Smith 1971-6-28 - 1266 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC59667  Prunella vulgaris subsp. lanceolata George Kirn 1977-10-3 Humboldt Jolly Giant Creek, 1/4 mi. from HSC campus 30 Comment
  RSA134596  Prunella vulgaris var. lanceolata Percy C. Everett, E. K. Balls 1959-10-25 23961 Humboldt 14 miles W of Willow Creek on Hwy 299 to Arcata. 503 Comment
  RSA289937  Prunella vulgaris var. lanceolata Lincoln Constance 1934-5-24 641 Humboldt Bull Creek Region, South Fork Eel River 122 Comment
  UC1321003  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-21 636 Humboldt s Weott (Burlington Residence Area and Campground, Humboldt Redwoods State Park); Humboldt Redwoods State Park Comment
  HSC101978  Prunus emarginata M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 875 Humboldt Patterson Meadows 1566 Comment
  HSC102105  Prunus emarginata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1008 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC72696  Prunus emarginata Gail Newton 1980-6-24 590 Humboldt Near Ladder Rock 1570 Comment
  RSA43864  Prunus virginiana var. demissa H. M. Pollard 1948-8-12 s.n. Humboldt Orleans Comment
  RSA46690  Prunus virginiana var. demissa Doris K. Kildale 1938-6-5 15388 Humboldt Horse Mountain Comment
  UC1199429  Pseudognaphalium ramosissimum Joseph P. Tracy 1900-9-9 945 Humboldt near Hydesville (gravel bar of creek); Yager Creek 60 Comment
  CAS-BOT-BC357602  Pseudognaphalium stramineum Carl B. Wolf 1927-8-29 1223 Humboldt Seacoast, Devil's Gate, south of Cape Mendocino Comment
  CAS-BOT-BC357607  Pseudognaphalium stramineum Joseph P. Tracy 1937-8-3 15614 Humboldt Along Mad River, near Blue Lake 15 Comment
  HSC40526  Pseudognaphalium thermale Thomas W. Nelson, James Nelson 1976-7-28 3060 Humboldt SW-facing outcrop along S.R. 36 ca. 4 mi. W of Dinsmore Comment
  UCD20403  Pseudognaphalium thermale Donald C. Hagar 1957-8-15 199 Humboldt 4.5 miles NE of Salyer, Cedar Creek Divide, 3500 ft. elev. 1066 Comment
  HSC34943  Pseudotsuga menziesii var. menziesii R. M. Sullivan 1975-4-9 2 Humboldt 3 mi N of Trinidad on Hwy. 101 24 Comment
  HSC44052  Pseudotsuga menziesii var. menziesii Thomas W. Nelson, Jane P. Nelson 1977-4-23 3345 Humboldt Tributary to Blanket Creek 1463 Comment
  HSC54603  Pseudotsuga menziesii var. menziesii Overton, Butler 1979-7-24 9686 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC55157  Pseudotsuga menziesii var. menziesii Gilbert Muth 1979-8-1 12110 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC76290  Pseudotsuga menziesii var. menziesii Teresa Prendusi 1981-7-23 358 Humboldt Near Black Mountain. 890 Comment
  JEPS48296  Pseudotsuga menziesii var. menziesii Lincoln Constance 1934-5-24 643 Humboldt lower Look Prairie Bull Creek Region 121 Comment
  UC709421  Pseudotsuga menziesii var. menziesii Joseph P. Tracy 1941-4-11 16859 Humboldt Willow Creek Canyon; along Trinity Highway 609 Comment
  UC1223051  Psilocarphus oregonus Joseph P. Tracy 1947-6-25 17720 Humboldt opposite Buck Mountain (Dinsmore's); Van Duzen River 762 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
  HSC76322  Pteridium aquilinum var. pubescens Denis Kearns 1981-7-24 446 Humboldt Near Whiteys Peak. 1768 Comment
  RSA275352  Pteridium aquilinum var. pubescens J. P. Smith, Steve Selva 1970-6-14 3855 Humboldt Along Calif. 96 at Whitmore Creek. 152 Comment
  HSC10869  Puccinellia nutkaensis D. J. McVean 1965-5-22 84 Humboldt Along slough just W of Jackson Rd., 1/4 mi. N of Samoa Rd. Comment
  UC577346  Pycnanthemum californicum Joseph P. Tracy 1931-9-7 9637 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  UCD117813  Pyrola aphylla K. Esau 1934-5-7 s.n. Humboldt Above Fort Seward. 609 Comment
  JEPS66565  Pyrola crypta Joseph P. Tracy Jul 16-19 1930 9033 Humboldt South Fork Mountain; in fir forest near McKay Camp 1676 Comment
  HSC54854  Pyrola picta G. L. Clifton 1979-7-25 10741 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC70748  Quercus chrysolepis R. York 1980-5-17 535 Humboldt Near Le Perron Peak 1066 Comment
  UCD82873  Quercus chrysolepis Rodney Gale Myatt 1971-9-21 1185 -6 Humboldt Near Orleans, northeast of Hoopa Reservation, along Klamath River. 185 Comment
  UC1193247  Quercus garryana P. Zinke 190 Humboldt 5 mi se Punta Enda; Lake Ridge at the Lake 579 Comment
  UC1193252  Quercus garryana P. Zinke 1950-8-3 144 Humboldt 914 Comment
  UC915707  Quercus garryana W. L. Jepson 1903-6-17 47 Humboldt Briceland Comment
  CAS-BOT-BC62727  Quercus garryana var. breweri Doris K. Kildale 1926-9-5 2631 Humboldt Head of Red Lassecks huk. Lasseck's Peaks 1676 Comment
  UCSB6966  Quercus kelloggii Muller, Cornelius 1954-6-21 Humboldt Olsen Creek, 2 mi. ESE of Mad River, on road to Forest Glen Comment
  UC1196535  Quercus vacciniifolia Joseph P. Tracy 1947-7-9 17844 Humboldt Horse Mountain 1432 Comment
  UC667981  Quercus vacciniifolia Joseph P. Tracy 1936-8-7 15116 Humboldt 2 mi se Devil's Hole; Trinity Summit 1584 Comment
  CAS-BOT-BC410975  Ranunculus acris Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  SEINET13716690  Ranunculus alismifolius var. alismellus Unknown 1942-6-23 17256 Humboldt Trinity Summit Open ridges near Water-dog Lakes. Comment
  HSC34119  Ranunculus alismifolius var. hartwegii J. O. Sawyer 1971-6-16 2386 Humboldt Headwaters of Tish Tang a Tang Creek 1829 Comment
  HSC36067  Ranunculus aquatilis R. Hager May 1962 Humboldt Turner Draw near Arcata Comment
  CAS-BOT-BC379198  Ranunculus aquatilis var. aquatilis C. C. Harris; S. K. Harris 1936-6-12 3363 Humboldt open woods, prairies and ledges on Chalk Mountain near Bridgeville Comment
  UC13903  Ranunculus aquatilis var. hispidulus W. C. Blasdale 1896-6-7 Humboldt Grahams Comment
  UC184716  Ranunculus aquatilis var. hispidulus Joseph P. Tracy 1913-6-23 4276 Humboldt near summit of ridge between Van Duzen River and Mad River (in shallow but permanent pond); Northern Coast Ranges, Dinsmore's Ranch 1066 Comment
  RSA43857  Ranunculus cymbalaria var. saximontanus H. M. Pollard 1947-8-7 s.n. Humboldt Klamath River bed, near hoodson Mine, Orleans region Comment
  HSC28201  Ranunculus hebecarpus Thomas W. Nelson 1971-5-7 429 Humboldt Beside Hwy. 101 1.0 mi. S of Arcata Comment
  HSC82522  Ranunculus occidentalis Thomas W. Nelson 1977-6-15 3441 Humboldt Along old road to Horse Mountain ski area. 1372 Comment
  UC162863  Ranunculus occidentalis Joseph P. Tracy 1908-6 2689 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC45624  Ranunculus occidentalis var. occidentalis Diane L. Reed 1978-4-22 11 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  UC183728  Ranunculus orthorhynchus var. orthorhynchus Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3604 Humboldt near Hydesville; Northern Coast Region 60 Comment
  POM149011  Ranunculus pusillus Joseph P. Tracy 1903-5-24 s.n. Humboldt At Alder Point on Eel River. 152 Comment
  HSC39445  Ranunculus repens var. repens Linda M. Barker 1976-6-1 1555 Humboldt 3 mi. W of Arcata Comment
  UCD16181  Ranunculus sardous J. DiTomaso 2000-8-12 s.n. Humboldt Arcata bottoms along Seidel Rd. Comment
  HSC55295  Ranunculus uncinatus Griswold, Butler 1979-7-10 6337 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC55324  Ranunculus uncinatus Griswold, Butler 1979-7-12 7143 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC56305  Ranunculus uncinatus Overton, Butler 1979-8-2 12613 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1196270  Ranunculus uncinatus Joseph P. Tracy 1916-5-7 4687 Humboldt Eureka Northern Coast Ranges 0 Comment
  HSC81964  Ranunculus uncinatus var. parviflorus Thomas W. Nelson, Jane P. Nelson 1979-7-3 4945 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  JEPS42054  Rhamnus californica Lincoln Constance 1934-6-13 872 Humboldt just below Redwood Hwy. (e bank of South Fork Eel River, n Dyerville Flat); South Fork Eel River, Bull Creek Region, Dyerville Flat Comment
  POM246499  Rhamnus californica Carl B. Wolf 1934-6-30 5842 Humboldt Back of Shelter cove. 61 Comment
  UC1197993  Rhamnus californica Joseph P. Tracy 1937-7-11 15418 Humboldt Garberville 152 Comment
  UC1541476  Rhamnus purshiana Harold E. Parks May 1935 5541 Humboldt Spruce Cove Trinidad Comment
  UC902199  Rhamnus purshiana Joseph P. Tracy 1948-8-22 18101 Humboldt 5 mi e Carlotta (flat by old Strong's District School House) 60 Comment
  UCD20672  Rhamnus purshiana A. T. Leiser 1980-7-9 s.n. Humboldt Humboldt County, North of Orick, Hwy 101 reroute. Comment
  UCD23454  Rhododendron columbianum K. Niles 1950-9-20 s.n. Humboldt Big Lagoon. Comment
  CAS-BOT-BC56608  Rhododendron macrophyllum A. A. Heller 1937-6-8 15898 Humboldt in the forest at Bishop Pine Lodge, 3 miles north of Trinidad Comment
  CAS-BOT-BC200381  Rhododendron occidentale var. paludosum G. A. Coleman 1901-7-20 s.n. Humboldt Near Arcata Comment
  HSC56034  Ribes binominatum G. L. Clifton, Griswold 1979-7-31 11591 Humboldt Near Trinity Summit Guard Station, close to Hoopa 1884 Comment
  HSC55974  Ribes lacustre G. L. Clifton 1979-7-31 11361 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  RSA0021102  Ribes lacustre Thomas W. Nelson, Jane P. Nelson 1977-6-19 3490 Humboldt [Mount] Lassic. 1616 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
  HSC103226  Ribes lobbii Jade Paget-Seekins 2010-6-23 24 Humboldt Horse Mountain. Slightly less than 10 miles up Titlow Hill Road, on Forest Route 1. Near 'Road Narrows' sign. 1558 Comment
  HSC39629  Ribes lobbii Thomas W. Nelson, Jane P. Nelson 1976-6-15 2734 Humboldt Just W of Goat Hill along road off FS 2S08 1463 Comment
  HSC70324  Ribes lobbii M. A. Baker 1980-6-8 1879 Humboldt Near Buck Flat. 1554 Comment
  UC667056  Ribes lobbii Joseph P. Tracy 1933-7-16 12783 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC583437  Ribes menziesii Elmer I. Applegate 1931-3-28 6625 Humboldt Trinidad, type locality Trinidad Comment
  UC667055  Ribes menziesii Joseph P. Tracy 1939-3-19 16204 Humboldt Blue Slide Van Duzen River 91 Comment
  HSC71225  Ribes roezlii Thomas W. Nelson 1977-4-20 3333 Humboldt Along USFS Road 1N15 at summit 915 Comment
  HSC98865  Ribes roezlii var. cruentum Cara Witte 2008-7-30 970 Humboldt Forest Service Road 4N32. 1/2 mile north of intersection with Forest Service Road 4N32B. 1417 Comment
  SEINET3121271 Image available Ribes roezlii var. cruentum Joseph P. Tracy 1944-7-3 17481 Humboldt Trinity River Valley; Willow Creek 152 Comment
  HSC39630  Ribes sanguineum Thomas W. Nelson, Jane P. Nelson 1976-6-15 2736 Humboldt Just W of Goat Hill along road off FS 2S08 1463 Comment
  HSC71224  Ribes sanguineum Thomas W. Nelson 1977-4-20 3332 Humboldt Along USFS Road 1N15 at summit 915 Comment
  HSC76265  Ribes sanguineum Teresa Prendusi 1981-7-24 511 Humboldt Near Whiteys Peak 1634 Comment
  UC1039819  Ribes sanguineum J. I. Mallory 1956-4-27 126 Humboldt 1.5 mi w Petrolia (at head of Jeffrey Gulch, Humboldt base and Mer.); Quad. 28-B4 167 Comment
  UC667054  Ribes sanguineum Joseph P. Tracy 1933-6-13 12589 Humboldt head Pine Creek (near summit on road from Hoopa westward to Bair's); Hoopa Mountain 1066 Comment
  CAS-BOT-BC144686  Ribes sanguineum var. glutinosum Lincoln Constance; Reed Rollins 1942-5-11 2866 Humboldt Near summit 8 miles east of Blue Lake Comment
  CAS-BOT-BC144695  Ribes sanguineum var. glutinosum H. E. McMinn 1922-8-4 340 Humboldt along Van Dusen River Comment
  CAS-BOT-BC173992  Ribes viscosissimum J. H. Thomas 1949-6-13 913 Humboldt Along trail between Le Perron Flat and Whiteys Peak. Six Rivers National Forest. (East of town of Orleans) 1371 Comment
  HSC102023  Ribes viscosissimum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 924 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  UC660024  Romanzoffia tracyi Lincoln Constance, Alan A. Beetle with Joseph P. Tracy 1940-5-18 2619 Humboldt ocean bluffs n. of Trinidad 30 Comment
  UC1198278  Rorippa curvisiliqua Joseph P. Tracy 1931-9-7 9666 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  POM312447  Rorippa curvisiliqua Malcolm A. Nobs, S. Galen Smith 1949-8-9 1238 Humboldt Marshy pond on south side of the town of Blue Lake. Comment
  RSA43862  Rorippa curvisiliqua H. M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans. Comment
  UC183573  Rorippa nasturtium-aquaticum Joseph P. Tracy 1912-7-26 3830 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC205457  Rorippa nasturtium-aquaticum Joseph P. Tracy 1919-5-31 5169 Humboldt along Willow Creek (tributary of Trinity River) near its mouth Northern Coast Ranges, along Willow Creek 152 Comment
  HSC35752  Rosa californica Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1996 Humboldt French Camp, Bald Hills. Comment
  HSC99513  Rosa canina K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 176 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  CAS-BOT-BC146481  Rosa gymnocarpa Alice Eastwood; John Thomas Howell 1937-6-22 4715 Humboldt Near Harris Comment
  CAS-BOT-BC146486  Rosa gymnocarpa L. B. Kildale 1930-7-11 10334 Humboldt Snow Camp, head of Redwood Creek Comment
  CAS-BOT-BC146495  Rosa gymnocarpa C. B. Wolf 1931-8-30 2376 Humboldt 11 miles above Blue Lake on the Lord Ellis Road to Willow Creek 304 Comment
  HSC58022  Rosa gymnocarpa G. L. Clifton 1979-7-31 11827 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  JEPS47242  Rosa gymnocarpa Lincoln Constance 1934-6-2 791 Humboldt Bull Cr. road to mouth of Bull Cr. (and up creek); South Fork Eel River, Bull Creek region Comment
  UC154526  Rosa gymnocarpa Mrs. M. H. Manning Sept. 1901 Humboldt near Hupa Comment
  JEPS47247  Rosa nutkana var. nutkana W. L. Jepson 1936-8-17 17922 Humboldt 2 1/2 mi s Fields Landing (bordering marsh) Comment
  UC1199023  Rosa nutkana var. nutkana Joseph P. Tracy 1924-9-21 6892 Humboldt Eureka Northern Coast Ranges 0 Comment
  HSC99508  Rosa pisocarpa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 170 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
  UC902158  Rosa pisocarpa Joseph P. Tracy 1947-7-4 17813 Humboldt near Box Camp; Trinity Summit 1524 Comment
  UCR121766  Rubus discolor George K. Helmkamp, E. A. Helmkamp 2001-7-8 7002 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  CAS-BOT-BC148382  Rubus leucodermis John Thomas Howell; Alice Eastwood 1937-6-22 4740 Humboldt Near Alder Point Comment
  UC467840  Rubus leucodermis Joseph Burtt Davy and Walter C. Blasdale 1899-5 5423 Humboldt near Hubbards Station (nw California); near Hubbards Station Comment
  HSC81965  Rubus parviflorus Thomas W. Nelson, Jane P. Nelson 1979-7-3 4944 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  HSC97621  Rubus parviflorus Cara Witte 2007-6-5 212 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1 mile south of intersection with 5N04. 1434 Comment
  SEINET10542893  Rubus procerus Charlene A. Bennett 1976-8-6 Bennett 485 Humboldt By hwy 101, n side of orick. Rocky area, densely forested by river. Flowers Pink 30 Comment
  CAS-BOT-BC156721  Rubus spectabilis Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka Comment
  CHSC13518  Rubus spectabilis A. R. Morrison 1974-4-27 Humboldt Ca. 1.5 mi. off Hwy. 101 on Westhaven Rd., Trinidad. 45 Comment
  SBBG50775  Rubus spectabilis D. G. Forbes 1966-4-4 66 -430 Humboldt Big Lagoon St Park, St Hwy 101 Comment
  UC203878  Rubus spectabilis Joseph P. Tracy 1918-5-12 4932 Humboldt at Eureka; Northern Coast Ranges, at Eureka 0 Comment
  HSC19693  Rubus ursinus N. D. Dennis 1965-5-5 53 Humboldt 1 mi. N of Trinidad on Hwy. 101 Comment
  UCD17624  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 040 Humboldt California. Humboldt County: on left side of U.S. 101 going north, about 0.5 miles north of Rock Creek Crossing. Comment
  UCD17625  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 039 Humboldt California. Humboldt County: on left side of U.S. 101 going north, about 0.5 miles north of Rock Creek Crossing. Comment
  HSC102053  Rumex acetosella M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 958 Humboldt Forest edge surrounding Patterson Meadows 1566 Comment
  HSC104451  Rumex acetosella Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 26 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC34704  Rumex crispus Thomas W. Nelson 1974-7-20 1700 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1225805  Rumex crispus Joseph P. Tracy 1948-9-12 18209 Humboldt meadow at Box Camp Trinity Summit 1463 Comment
Read comments Aug 5 2009
  CAS-BOT-BC434096  Rumex transitorius L. R. Abrams 1918-6-16 7165 Humboldt Willow Creek Comment
  UC495729  Rupertia physodes Joseph P. Tracy 1930-6-15 8765 Humboldt near Blocksburg; Northern Coast Ranges 457 Comment
  SEINET12155885  Rupertia physodes J. P. Tracy 1950-1 18783 Humboldt Jenk's Ranch. Mail Ridge, N of Harris 7 mi Comment
  UC1222605  Rupertia physodes Joseph P. Tracy 1951-7-26 19589 Humboldt extreme head Redwood Creek (n side of mountain); Board Camp Mountain 1541 Comment
  HSC40219  Sagina apetala Barbara Kelly 1977-4-6 290 Humboldt N Spit 100 yds. W of Coast Guard Station 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
  POM182024  Salix eastwoodiae Joseph P. Tracy 1932-7-16 10647 Humboldt McKay Meadow. Tinity summit. Klamath Mountains. 1524 Comment
  CAS-BOT-BC103810  Salix exigua Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01237 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  POM220112  Salix exigua H. E. Parks, Joseph P. Tracy 1931-5-17 971 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  POM362562  Salix exigua H. E. Parks 1931-8-25 1061 Humboldt Blue Slide. Van Duzen River. 90 Comment
  CAS-BOT-BC107678  Salix hookeriana L. R. Abrams; G. T. Benson 1924-5-17 10732 Humboldt Lagoon between the Mad and Little Rivers Comment
  CAS-BOT-BC107704  Salix hookeriana Harold E. Parks 1931-3-26 905 Humboldt Alton, on Van Duzen River 15 Comment
  CAS-BOT-BC107708  Salix hookeriana Harold E. Parks 1931-3-24 912 Humboldt Fortuna, on banks of Eel River 10 Comment
  CAS-BOT-BC107714  Salix hookeriana Doris K. Kildale 1926-3-20 1557 Humboldt Big Lagoon, along coast Comment
  CAS-BOT-BC107749  Salix hookeriana Harold E. Parks 1931-5-12 953 Humboldt Samoa, Humboldt Bay Comment
  CAS-BOT-BC107767  Salix hookeriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1207 Humboldt Little River Lagoon, 4 1/2 miles south of Trinidad Comment
  HSC40380  Salix hookeriana Linda M. Barker 1976-3-22 1341 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC96614  Salix hookeriana Gordon Leppig 2005-4-8 2208 Humboldt N Spit Swamp, edge of swamp 100 m S of Samoa bridge 4 Comment
  JEPS12950  Salix hookeriana Joseph P. Tracy 1932-3-19 9787 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  JEPS38443  Salix hookeriana J. P. Tracy 1906-4-12 2401 Humboldt Immediate vicinity of Eureka 0 Comment
  LA208762  Salix hookeriana Harold E.; Susan T. 1932-4-7 1103 Humboldt Little River Lagoon, Trinidad; at sea level Comment
  POM184871  Salix hookeriana H. E. Parks, Susan T. Parks 1932-4-10 1103 -a Humboldt Little River Lagoon. Trinidad. At sea level. 0 Comment
  UC1173624  Salix hookeriana Joseph P. Tracy 1937-8-12 15658 Humboldt Snow Camp 1402 Comment
  UC470423  Salix hookeriana Joseph P. Tracy 1931-9-19 9680 Humboldt near Alton; Northern Coast Ranges, Van Duzen River 30 Comment
  UC481379  Salix hookeriana Harold E. Parks and J. P. Tracy 1931-3-26 905 Humboldt on Van Duzen R. Alton; Van Duzen R., Alton 15 Comment
  UC512100  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1210 a Humboldt 4 1/2 mi s Trinidad (Little River Lagoon); Little River Lagoon Comment
  UC512106  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1207 Humboldt 4 1/2 mi s Trinidad; Little River Lagoon Comment
  UC519333  Salix hookeriana Joseph P. Tracy 1933-5-20 12263 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UCD111017  Salix hookeriana Harold E. Parks 1931-5-28 0999 Humboldt Little River Lagoon. Comment
  HSC56151  Salix jepsonii G. L. Clifton, Griswold 1979-8-1 12002 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  UC1196583  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1941-3-26 16815 Humboldt opposite mouth of Willow Creek Lack Pond; Trinity River Valley Comment
  UC481282  Salix lasiandra subsp. lasiandra Harold E. Parks 1931-5-14 959 Humboldt Van Duzen R. between Alton and Carlotta; Van Duzen R. 15 Comment
  CAS-BOT-BC125223  Salix lasiandra var. lasiandra Harold E. Parks; Susan T. Parks 1932-4-16 01099 Humboldt Ferndale, about 16 km. from mouth of Eel River, near sea level Comment
  CAS-BOT-BC107624  Salix lasiolepis Joseph P. Tracy 1932-4-24 9803 Humboldt South Fork of Eel River, between Miranda and Redway 91 Comment
  HSC19991  Salix lasiolepis A. Sylvester, R. Spellenberg, D. Sutherland 1966-3-27 1357 Humboldt 1.5 mi. E of Blue Lake on Hwy. 299 Comment
  HSC20017  Salix lasiolepis J. P. Tracy 1933-4-9 10968 Humboldt Bridgeville, along Van Duzen River 229 Comment
  JEPS13081  Salix lasiolepis Joseph P. Tracy 1939-8-5 16392 Humboldt Van Duzen River at Dinsmore's 737 Comment
  UC469434  Salix lasiolepis Joseph P. Tracy 1931-10-11 9715 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC469435  Salix lasiolepis Joseph P. Tracy 1931-10-11 9718 Humboldt near mouth Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC481182  Salix lasiolepis Harold E. and Susan T. Parks 1931-8-15 1079 Humboldt on Van Duzen R. Blue Slide; Van Duzen R., Blue Slide 100 Comment
  UC490548  Salix lasiolepis Joseph P. Tracy 1932-4-24 9805 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC490553  Salix lasiolepis Joseph P. Tracy 1932-3-6 9774 Humboldt at mouth of Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC504029  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1321 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  UC504030  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1321 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  UC506391  Salix lasiolepis Joseph P. Tracy 1933-2-26 10914 Humboldt along S. Fork Eel R. Miranda; North Coast Ranges, S. Fork Eel R., Miranda 121 Comment
  UC512043  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1318 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  CHSC9553  Salix lucida subsp. lasiandra E. L. Smith 1971-4-6 923 Humboldt Ca. 3 mi s of Scotia, on Hwy 101. 60 Comment
  POM184868  Salix lucida subsp. lasiandra H. E. Parks, Susan T. Parks 1932-5-12 1150 Humboldt Near bridge at mouth of Maple Creek. Big Lagoon. Comment
  CAS-BOT-BC125626  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 0973 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  CAS-BOT-BC125640  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 0972 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  LA208879  Salix melanopsis Mrs. H. P. Bracelin; 1931-5-2 283 Humboldt E of Redwood Hwy.; 6 km. S of Alton 20.0 Comment
  UC1173599  Salix melanopsis Joseph P. Tracy 1937-7-24 15507 Humboldt Mad R. at mouth of Lindsey Creek Lindsey Creek; Mad R. 15 Comment
  UC469448  Salix melanopsis Joseph P. Tracy 1931-5-3 9346 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  UC469453  Salix melanopsis Joseph P. Tracy 1931-6-14 9582 Humboldt Van Duzen R. Alton; Northern Coast Region, , Alton 30 Comment
  UC481286  Salix melanopsis Harold E. Parks 1931-5-14 961 Humboldt Van Duzen R. between Alton and Carlotta; Van Duzen R. 15 Comment
  UC519367  Salix melanopsis Joseph P. Tracy 1933-7-20 12805 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  CAS-BOT-BC129135  Salix scouleriana Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-11 1228 Humboldt 1 mile north of Samoa, approximately sea level. Comment
  HSC20091  Salix scouleriana H. E. Parks Feb 1933 1151 Humboldt Spruce Cove, Trinidad Comment
  HSC38188  Salix scouleriana Thomas W. Nelson, James Nelson 1976-3-5 3294 Humboldt Beside Hwy. 101 near summit of Table Bluff Comment
  HSC96596  Salix scouleriana Gordon Leppig 2003-2-22 1814 Humboldt Eureka Slough, NE corner of log pond 3 Comment
  JEPS13086  Salix scouleriana Joseph P. Tracy 1936-2-2 14766 Humboldt vicinity of Carlotta 30 Comment
  SBBG57977  Salix scouleriana H. E. Parks 1931-5-12 955 a Humboldt Samoa, Humboldt Bay Comment
  UC1196693  Salix scouleriana Joseph P. Tracy 1924-1-20 6597 Humboldt near bay shore Samoa (around Humboldt Bay); Northern Coast Region, Humboldt Bay 3 Comment
  UC1196704  Salix scouleriana Joseph P. Tracy 1933-3-26 10942 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC519354  Salix scouleriana Joseph P. Tracy 1933-7-11 12706 Humboldt Grouse Mt.; North Coast Ranges, Grouse Mt. 1524 Comment
  HSC96615  Salix sitchensis Gordon Leppig 2005-4-8 2206 Humboldt N Spit Swamp, W side of highway 3 Comment
  SBBG57990  Salix sitchensis L. Rowntree 1931-7-25 Humboldt Carlotta Comment
  UC1196724  Salix sitchensis Joseph P. Tracy 1926-2-21 7356 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 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
  UC490535  Salix sitchensis Joseph P. Tracy 1932-7-13 10512 Humboldt at Corral Prairie Corral Prairie; Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  SEINET4855904  Salix tracyi Carleton R. Ball 1932-5-13 01254 Humboldt Mad River at Engelhart gravel pit, 2 mi E of Redwood Hwy and above Blue Lake Road. Comment
  UC55407  Salix tracyi Mrs. M. H. Manning 1932-4 Humboldt Hupa Comment
  HSC79479  Sambucus racemosa var. racemosa Kenneth Clark 1980-3-27 562 Humboldt N fork of Dead Man's Gulch. 73 Comment
  HSC91606  Sambucus racemosa var. racemosa E. Mackey 1987-3-1 Humboldt Patrick's Point State Park, Palmer's Point. Comment
  UCD137271  Sambucus racemosa var. racemosa David G. Forbes 1966-4-4 66- 432 Humboldt 1 miles north of Fresh Water Lagoon, U.S. Highway 101. 30 Comment
  CAS-BOT-BC235128  Sambucus racemosa var. racemosa Duncan Dunning 1921-10-2 37285 Humboldt Bulwinkle [Bullwinkle] Comment
  HSC89430  Sanicula arctopoides P. A. Daly 1984-5-8 9 Humboldt Trinidad Head. 61 Comment
  UC1073331  Sanicula arctopoides George B. Rossbach 1955-6-10 375 Humboldt between Fairhaven and (end of sandy point) off Eureka (near Humboldt Bay (lagoon) and lighthouse) Comment
  UC205466  Sanicula arctopoides Joseph P. Tracy 1919-4-27 5136 Humboldt Ocean Beach at Humboldt Bay Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  HSC39444  Sanicula crassicaulis Linda M. Barker 1976-6-1 1540 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  JEPS282  Sanicula crassicaulis Joseph P. Tracy 1927-5-8 7968 Humboldt facing South Fork of Eel River (Phillipsville); Phillipsville 121 Comment
  UC1222746  Sanicula crassicaulis Joseph P. Tracy 1950-7-6 19023 Humboldt 3 mi s of Burr Valley (Sproston's Place); Sproston's Place 1066 Comment
  UCR32083  Sanicula crassicaulis David J. Keil 1983-7-2 17341 Humboldt 2.8 mi south of SR 299 along Titlow Hill Rd., SW of Willow Creek 1098 Comment
  HSC55730  Sanicula graveolens G. L. Clifton, Terry Griswold 1979-7-26 10214 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1981 Comment
  UC1197091  Sanicula graveolens Joseph P. Tracy 1932-7-13 10528 Humboldt Trinity Summit, at Corral Prairie Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  UC642310  Sanicula graveolens Joseph P. Tracy 1929-7-4 8614 A Humboldt French Camp Ridge 1066 Comment
  UC1197088  Sanicula laciniata Joseph P. Tracy 1936-3-8 14776 Humboldt along South Fork of Eel River, Miranda South Fork Eel River; , Miranda 121 Comment
  UCD128032  Sanicula laciniata R. N. Raynor 1935-3-2 s.n. Humboldt Fort Seward. Comment
  HSC68994  Sanicula tracyi Jacqueline Greenleaf 1980-8-12 327 Humboldt Near Becker Cabin. 1143 Comment
  HSC68996  Sanicula tracyi Jacqueline Greenleaf 1980-8-12 314 Humboldt Near Henry Ridge. 1128 Comment
  UC1197325  Sanicula tracyi Joseph P. Tracy 1908-6-30 Humboldt nw slope Buck Mtn; North Coast Ranges 762 Comment
  HSC101053  Sanicula tracyi Lisa Hoover 1996-7-11 176 Humboldt From County Rd. 1 heading south: turn onto Forest Service Rd. 3N10; pass intersection with FS Rd. 2N10 1119 Comment
  HSC21644  Sanicula tuberosa Elrid H. Spinas 1948-5-15 9 Humboldt Horse Mtn. Comment
  HSC55296  Sanicula tuberosa Terry Griswold, Butler 1979-7-10 6344 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC642316  Sanicula tuberosa Joseph P. Tracy 1933-6-13 12568 Humboldt Hoopa Mountain, near summit on road from Hoopa westward to Bair's Hoopa Mountain 1066 Comment
  HSC101030  Sanicula tuberosa John McRae 1994-7-1 36 Humboldt Route 1 to FS Rd. 3N14. Approx. .25 mi. to end of PC-1. 1220 Comment
  HSC21645  Sanicula tuberosa F. Morrell 1949-5-15 Humboldt Berry Summit Comment
  UC1197327  Sanicula tuberosa Joseph P. Tracy 1930-6-21 8780 Humboldt Northern Coast Ranges, Laribee Valley Laribee Valley; Northern Coast Ranges, Laribee Valley 792 Comment
  UC412776  Sarcodes sanguinea P. E. Goddard 1906-6 681 Humboldt ridge near <Lassick> Peak Comment
  JEPS62817  Satureja douglasii W. L. Jepson 1932-8-8 16485 Humboldt Canoe Creek Grasshopper Peak 1066 Comment
  RSA0101646  Sceptridium multifidum Robert F. Thorne, Percy Everett 1965-8-7 35230 a Humboldt Big Lagoon. 3 Comment
  CAS-BOT-BC111702  Schoenoplectus pungens var. badius LeRoy Abrams; Rimo Bacigalupi 1922-6-25 8268 Humboldt Big Lagoon south of Orick Comment
  HSC58384  Scirpus congdonii Terry Griswold 1979-7-25 10920 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1784 Comment
  CAS-BOT-BC84074  Scirpus criniger H. N. Bolander 1867-6-1 6475 Humboldt Red Mts. Comment
  SBBG88776  Scirpus microcarpus A. Keedy 1988-9-28 14 Humboldt Alder Grove Rd near Hwy 299, N of Arcata Comment
  UC183681  Scirpus microcarpus Joseph P. Tracy 1914-9-13 4628 Humboldt at Eureka; Northern Coast Region, at Eureka 0 Comment
  RSA183587  Scoliopus bigelovii R. D. Zortman 1963-3-16 13 Humboldt 5 miles northeast of Arcata; south of the Mad River, off Warren Creek Road. 91 Comment
  UC582594  Scrophularia californica Joseph P. Tracy 1937-7-30 15565 Humboldt 6 mi se Arcata (Fickle Hill) 609 Comment
  RSA425152  Scrophularia californica Bonnie C. Templeton 1964-6-13 10088 Humboldt Trinidad Head, near Lighthouse Point. Comment
  RSA79453  Scrophularia californica F. W. Peirson 1926-7-13 7053 Humboldt Vicinity of Blue Lake, Mad River. Comment
  UC175777  Scutellaria antirrhinoides Joseph P. Tracy 1912-6-9 3670 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  UC577340  Scutellaria californica Joseph P. Tracy 1937-7-11 15423 Humboldt vicinity of Garberville 121 Comment
  UC577338  Scutellaria siphocampyloides Joseph P. Tracy 1932-5-17 10083 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC56994  Sedum obtusatum subsp. retusum Overton, Butler 1979-7-24 9564 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  HSC59359  Sedum obtusatum subsp. retusum M. A. Baker 1979-6-28 945 Humboldt 1500 Comment
  HSC89507  Sedum spathulifolium var. pruinosum M. Roantree 1985-6-11 89 Humboldt W side of Trinidad Head, W of trail Comment
  HSC6480  Sedum spathulifolium var. spathulifolium William J. Ferlatte, B. D. Rogers 1966-6-15 2103 Humboldt Larabee Valley 762 Comment
  HSC99425  Senecio integerrimus var. exaltatus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-1 74 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
  HSC101966  Senecio integerrimus var. major M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 861 Humboldt Patterson Meadows 1555 Comment
  HSC57618  Senecio integerrimus var. major G. L. Clifton, Griswold 1979-7-25 10743 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC72692  Senecio integerrimus var. major Gail Newton 1980-6-24 562 Humboldt Near Ladder Rock 1570 Comment
  UC427870  Senecio integerrimus var. major H. E. Parks and J. P. Tracy 1930-5-25 879 Humboldt Laribee Valley Comment
  SBBG29108  Senecio minimus H. E. Parks -Sep-1931 1058 Humboldt Trinidad 250 Comment
  UC128739  Senecio sylvaticus Joseph Burtt Davy and Walter C. Blasdale 1899-6-12 5446 Humboldt near Elk Prairie; north-western California Comment
  HSC102003  Senecio triangularis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 904 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  UC180178  Senecio triangularis Joseph P. Tracy 1914-7-4 4539 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges, High Prairie on Bald Mountain 1066 Comment
  HSC6134  Senecio vulgaris Paul Shields 1955-6-18 Humboldt H.S.C. campus Comment
  CAS-BOT-BC364523  Senecio vulgaris Doris K. Kildale 1925-12-6 1821 Humboldt Orick near mouth of Redwood Creek Comment
  SEINET11802700  Senecio vulgaris J. P. Tracy 1943-1 17454 Humboldt Eel River Bar at mouth of Van Duzen, near Alton Comment
  HSC85743  Sequoia sempervirens R. W. Becking 1985-1-17 Humboldt HSU Campus, Hse. 87 Comment
  MACF015653  Sequoia sempervirens F. A. MacFadden 1935-6-22 13644 Humboldt Richardson's Grove, Humboldt California Comment
  SEINET5716899 Image available Sequoia sempervirens Ronald J. Mastrogiuseppe 1965-1 s.n. Humboldt Humboldt Redwoods State Park; near the Founders Tree.; Humboldt Redwoods State Park Comment
  CAS-BOT-BC364783  Sericocarpus oregonensis subsp. oregonensis Doris K. Kildale 1926-8-22 2589 Humboldt On Orick - Martin's Ferry road 716 Comment
  UC1222980  Sericocarpus oregonensis subsp. oregonensis Joseph P. Tracy 1950-9-22 19378 Humboldt ca 3 mi sw of, along roadside Orleans Comment
  HSC98920  Sericocarpus oregonensis var. oregonensis Cara Witte 2008-8-16 1032 Humboldt Intersection of National Forest 1 and Forest Service Road 4N06. 1252 Comment
  CHSC69832  Sherardia arvensis W. L. Jepson 1934-5-7 Humboldt Buckey Prairie, Bull Creek. Comment
  POM203228  Sherardia arvensis M. S. Jussel 1931-5-2 s.n. Humboldt 20 mi. N. of Garberville. Comment
  UC502959  Sidalcea asprella Joseph P. Tracy 1928-6-24 8458 Humboldt between Bridgeville and head of Yager (South Yager Creek) 762 Comment
  HSC57901  Sidalcea oregana subsp. spicata Gilbert Muth 1979-7-31 11492 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  JEPS50977  Silene californica W. L. Jepson 1902-7-1 1962 Humboldt Hupa Road , Hupa Road (Redwood Creek) Comment
  UC1137920  Silene californica H. S. Yates 1936-6-23 5874 Humboldt 4 mi nne Cathay Peak; Dyerville Quad., nne of Cathay Peak Comment
  UC852804  Silene californica Elizabeth Parsons Hawver Jun 1905-June 1915 Humboldt Carlotta Comment
  POM286441  Silene californica Lyman Benson 1928-7-10 427 Humboldt Fortuna; River: Eel, mouth. 30 Comment
  UC8435  Silene campanulata subsp. campanulata Bolander 1866-1 6517 Humboldt Red Mountain Comment
  CAS-BOT-BC174879  Silene campanulata subsp. glandulosa Volney Rattan 1883-1-1 s.n. Humboldt Hoopa Valley Comment
  HSC74495  Silene campanulata subsp. glandulosa M. A. Baker 1980-7-24 3210 Humboldt Near Orleans Mtn. 1625 Comment
  UC1225793  Silene grayi Joseph P. Tracy 1947-7-9 17851 Humboldt Horse Mountain 1432 Comment
  HSC103763  Silene hookeri M. R. Mesler, Sydney Carothers 2013-6-3 1482 Humboldt Near Orleans, ca. 0.6 miles west of NR 15 on FS rd 12N20 790 Comment
  CAS-BOT-BC181262  Silene hookeri subsp. hookeri Doris K. Kildale 1929-3-26 9137 Humboldt Orleans, Klamath River 152 Comment
  HSC68116  Silene laciniata subsp. californica J. P. Smith 1973-5-26 6819 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  CAS-BOT-BC389262  Silene lemmonii Joseph P. Tracy 1932-7-12 10452 Humboldt Trinity Summit. Near Corral Prairie 1584 Comment
  HSC26650  Sisyrinchium bellum Thomas W. Nelson 1971-5-9 433 Humboldt Beside Hwy. 36 opposite Goat Rock, 1 mi. W of Bridgeville Comment
  HSC27000  Sisyrinchium californicum Brad Klipfel 1973-8-17 271 Humboldt Big Lagoon Park, N of Trinidad Comment
  UC1409181  Sisyrinchium californicum Robert F. Thorne and P. Everett 35177 Humboldt at s end of Big Lagoon 1 Comment
  HSC91943  Solanum americanum E. Mackey 1987-8-28 Humboldt Patrick's Point State Park, Palmer's Point Comment
  UC585976  Solanum americanum Joseph P. Tracy 1934-11-4 13698 Humboldt Shively 30 Comment
  HSC12029  Solanum americanum D. Santana 1970-11-2 94 Humboldt 3 mi. S of Trinidad on old Hwy. 1 Comment
  CAS-BOT-BC236441  Solanum aviculare Doris K. Kildale 1925-9-28 1357 Humboldt Samoa Peninsula Comment
  NY821311  Solanum laciniatum H. H. Smith 1911-6-17 3857 Humboldt Samoa Comment
  CAS-BOT-BC365432  Solidago elongata Marcus E. Jones 1931-7-12 29135 Humboldt Alton Comment
  CAS-BOT-BC365663  Solidago spathulata S. K. Harris 1939-9-5 s.n. Humboldt At Samoa Comment
  CHSC13899  Solidago spathulata D. Joley 1967-8-17 65 Humboldt Found growing 10 mi NW of Fortuna. Comment
  UC1541471  Solidago spathulata J. P. Tracy 1924-9-21 6900 Humboldt Eureka Comment
  CAS-BOT-BC364967  Solidago velutina subsp. californica Henry M. Pollard 1945-9-1 s.n. Humboldt Road to Camp Creek, Klamath River Canyon Comment
  CAS-BOT-BC365811  Soliva sessilis L. R. Abrams 1918-6-12 7080 Humboldt In street, Eureka Comment
  HSC104456  Sonchus oleraceus Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 25 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC39802  Sonchus oleraceus Peter Sorensen 1976-6-11 Humboldt King Salmon Comment
  HSC56053  Sorbus scopulina G. L. Clifton, Griswold 1979-7-31 11655 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC62679  Sparaxis tricolor Michelle Stevens 1979-5-18 49 Humboldt Arcata, 11th and B St. 0 Comment
  HSC36097  Sparganium angustifolium Ken Harrington 1973-10-7 Humboldt Log pond in Arcata Comment
  RSA21550  Sparganium angustifolium subsp. emersum Carl B. Wolf 1937-9-14 9354 Humboldt Town of Blue Lake. 15 Comment
  CAS-BOT-BC235368  Spartina densiflora Malcom A. Nobs; S. Galen Smith 1949-8-3 1180 Humboldt Near mouth of the Elk River, ca. 4 miles south of Eureka on Highway 101 Comment
  HSC93471  Spartina densiflora Gordon Leppig 1998-8-6 992 Humboldt Arcata Marsh and Wildlife Sanctuary. 2 Comment
  UCR45375  Spartina densiflora K. Berg 1986-7-28 637 Humboldt Humboldt Bay Arcata; foot of I Street Comment
  UCD92983  Spartina foliosa Gordon Leppig 1998-8-6 992 Humboldt Arcata, Arcata Marsh and Wildlife Sanctuary. On Humboldt bay side of Klopp Lake dike. 2 Comment
  CDA35771  Spartina foliosa J. R. Keck Jr. 1987-10-28 PDR# 331439 Humboldt Humboldt Bay tidal zone near Somoa. 0 Comment
  CHSC14126  Spergula arvensis subsp. arvensis D. Joley 1967-8-16 49 Humboldt Found at a fish hatchery 4 mi n of Orick. Comment
  HSC4264  Spergularia macrotheca D. K. Smith 1968-11-9 54 Humboldt Along E edge of Humboldt Bay, 1 mi. S of Arcata Comment
  CDA18204  Spergularia macrotheca var. macrotheca G. D. Barbe, T. C. Fuller 1974-6-17 1830 Humboldt North Coast Ranges; Lower Pacific Drive, S of sewage plant, W of golf course, at Sail Court, Shelter Cove. 60 Comment
  HSC90774  Spergularia macrotheca var. macrotheca Gail Newton 1983-8-21 3857 Humboldt Elk River Wildlife Area, Eureka. Comment
  HSC99821  Spergularia rubra J. O. Sawyer 1980-7-18 3590 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  RSA0098106  Spergularia rubra James Payne Smith 1976-5-27 8814 Humboldt Arcata, corner of 14th and G Street. Comment
  HSC37969  Spergularia salina Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  CAS-BOT-BC149614  Spiraea douglasii Alice Eastwood 1923-8-14 12323 Humboldt Samoa Comment
  HSC97923  Spiraea douglasii Cara Witte 2007-6-19 291 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. Near Horse Mountain mine. 1289 Comment
  UC1199030  Spiraea douglasii J. P. Tracy 1901-6-30 1198 Humboldt immediate vicinity Eureka 0 Comment
  UC194896  Spiranthes porrifolia Joseph P. Tracy 1916-6-19 4721 Humboldt Dobbyn Creek Northern Coast Ranges (swampy ground around a pond) 182 Comment
  UC176181  Spiranthes romanzoffiana Joseph P. Tracy 1913-9-9 4398 Humboldt Big Lagoon Northern Coast Ranges 30 Comment
  UC1196400  Spiranthes romanzoffiana Joseph P. Tracy 1948-8-22 18099 Humboldt flat by old Strong's District School House (5 mi e of town); Carlotta 60 Comment
  HSC100154  Spirodela polyrhiza J. M. DiTomaso 1979-4-21 893 Humboldt Next to Hwy. 101 at Crannell Rd. exit between Westhaven and Mckinleyville Comment
  RSA33441  Stachys ajugoides Carl B. Wolf 1937-6-18 8896 Humboldt 1/2 mile S of Fortuna. 15 Comment
  CHSC802  Stachys ajugoides var. rigida 1929-5-6 Humboldt Comment
  CHSC84693  Stachys ajugoides var. rigida L. P. Janeway 2003-7-26 7922 Humboldt High North Coast Ranges. South side (above) Road 5N04, 0.5 km northeast of the top of Grouse Mountain. 1554 Comment
  UC577327  Stachys ajugoides var. rigida Joseph P. Tracy 1936-6-8 14874 Humboldt Trinidad 3 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
  UC668215  Stachys ajugoides var. rigida Joseph P. Tracy 1938-7-4 15987 A Humboldt Valley of South Yager Creek 762 Comment
  UCLA70839  Stachys ajugoides var. rigida Joseph P. Tracy 1937-6-20 15342 Humboldt Bear River 152 Comment
  UCLA70888  Stachys ajugoides var. rigida C. Epling, Wm. Robison 1935-7-25 Humboldt Dyerville Comment
  UC1225845  Stachys ajugoides var. rigida Joseph P. Tracy 1942-7-1 17364 Humboldt opposite Buck Mountain (Dinsmore's); Van Duzen River 762 Comment
  HSC12030  Stachys arvensis D. Santana 1970-11-2 113 Humboldt 14th and B St. Arcata Comment
  HSC89453  Stachys mexicana M. Roantree 1985-5-7 40 Humboldt SW side of Trinidad Head, along trail Comment
  HSC47011  Stachys mexicana Sheila Logan 1978-4-10 179 Humboldt Redwood Park behind HSU campus, 1/4 mi. N of Bayside Rd. Comment
  SDSU7886  Stachys mexicana D. F. Howe 1959-8-4 2803 Humboldt 86 miles west of Weaverville on #299 152 Comment
  HSC63580  Stachys rigida J. P. Smith 1973-5-26 6789 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  RSA12456  Stachys rigida subsp. quercetorum Carl B. Wolf 1934-6-30 5837 Humboldt 7 miles from Shelter Cove on road to Briceland. 152 Comment
  RSA43679  Stachys rigida subsp. quercetorum H. M. Pollard 1947-8-30 s.n. Humboldt North Road along Klamath River near Redcap Creek. Orleans region. Comment
  CAS-BOT-BC175345  Stellaria borealis subsp. sitchana Harley P. Chandler 1901-5-1 1196 Humboldt Humboldt Bay 30 Comment
  HSC39800  Stellaria media Peter Sorensen 1976-6-11 Humboldt Woodley Island Comment
  JEPS79991  Stellaria obtusa Joseph P. Tracy 1935-7-23 14161 Humboldt lower end Brett Hole; Trinity Summit 1584 Comment
  JEPS6211  Stenanthium occidentale Joseph P. Tracy 1937-7-25 15558 Humboldt n.e. Hawkins Bar (Happy Camp Mt., Trinity Summit Range); Trinity Summit Range, Happy Camp Mt. 1280 Comment
  HSC99013  Stipa lemmonii var. lemmonii Cara Witte 2007-6-7 231 Humboldt White Oak Opening. Along Kinsey Ridge. 1238 Comment
  HSC73047  Stipa occidentalis var. californica M. A. Baker 1980-7-15 2943 Humboldt Near Whiting Ridge. 1341 Comment
  HSC70806  Streptanthus tortuosus Gail Newton 1980-7-24 1787 Humboldt Near Somes Mtn. 1615 Comment
  HSC58219  Streptopus amplexifolius Walter Overton 1979-8-1 12357 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  POM87663  Streptopus amplexifolius Le Roy Abrams, Rimo C. Bacigalupi 8302 Humboldt Near county line Comment
  HSC73741  Swertia radiata M. A. Baker 1980-7-19 2995 Humboldt Near Bret Hole. 1814 Comment
  UC562306  Swertia radiata Joseph P. Tracy 1932-7-20 10731 Humboldt Corral Prairie Trinity Summit 1584 Comment
  CAS-BOT-BC269572  Symphoricarpos albus var. laevigatus Carl D. Duncan 1920-9-22 337 Humboldt Hoopa Comment
  POM285008  Symphoricarpos albus var. laevigatus Lyman Benson 1928-7-12 473 Humboldt Weott Ranger Station; Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  HSC63805  Symphoricarpos mollis M. A. Baker 1979-5-25 762 Humboldt Comment
  HSC58385  Symphyotrichum bracteolatum Terry Griswold 1979-7-25 10923 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1784 Comment
  CAS-BOT-BC99158  Symphyotrichum chilense Mary O'Conor 1927-9-26 s.n. Humboldt Eureka Comment
  CAS-BOT-BC99161  Symphyotrichum chilense E. K. Balls 1950-7-17 14927 Humboldt Redwood Hwy, 4 mi. north of Loleta 7 Comment
  CAS-BOT-BC99172  Symphyotrichum chilense Henry M. Pollard 1956-10-14 s.n. Humboldt Rocky crevices along Klamath River near mouth of Pearch Creek, Orleans. Comment
  CAS-BOT-BC98928  Symphyotrichum foliaceum var. parryi Joseph P. Tracy 1937-8-12 15634 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC98973  Symphyotrichum foliaceum var. parryi Doris K. Kildale 1925-8-17 1215 Humboldt Trinity Summit near Ranger Station 1828 Comment
  SEINET11115992  Symphytum asperum Unknown 1949-1 18358 Humboldt CALIFORNIA PLANTS HUMBOLDT COUNTY Salmon Creek Valley, south end of Humboldt Bay; naturalized native of Asia. Comment
  HSC89432  Synthyris reniformis P. A. Daly 1984-5-8 11 Humboldt Trinidad Head 61 Comment
  JEPS9930  Synthyris reniformis Lincoln Constance 1934-6-15 882 Humboldt South Fork Eel River (Summit of Grasshopper Peak); Bull Creek Region 975 Comment
  UC1198055  Synthyris reniformis Joseph P. Tracy 1927-4-23 7918 Humboldt Blue Lagoon; Northern Coast Region 6 Comment
  HSC95076  Tanacetum bipinnatum Andrea Pickart 2002-7-2 144 Humboldt King Salmon Sand Spit 0 Comment
  CAS-BOT-BC376733  Tanacetum bipinnatum A. A. Heller 1924-7-23 13875 Humboldt Along the beach at the mouth of Little River near Trinidad Comment
  HSC6243  Tanacetum bipinnatum H. E. Parks Sep 1941 24216 Humboldt Little River Comment
  SEINET3816619  Tanacetum parthenium Joseph P. Tracy 1946-7-28 17624 Humboldt Head of willow creek Comment
  HSC70325  Taraxacum officinale M. A. Baker 1980-6-8 1880 Humboldt Near Buck Flat. 1554 Comment
  UC1223046  Taraxacum officinale Joseph P. Tracy 1951-6-24 19542 Humboldt Ashland Ridge Kneeland Prairie 762 Comment
  HSC6264  Taraxacum officinale R. T. Forester 1963-3-21 30 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  UC1222838  Taraxia ovata Joseph P. Tracy 1951-5-5 19392 Humboldt flat by old Strong's District School House (5 mi e of Carlotta) 60 Comment
  UC314623  Taraxia ovata Joseph P. Tracy 1924-3-16 6627 Humboldt Garberville Northern Coast Ranges 121 Comment
  UC642289  Tauschia kelloggii Joseph P. Tracy 1936-8-2 15079 Humboldt French Camp Ridge 1066 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
  HSC1595  Taxus brevifolia F. Morrell 1949-5-22 33 Humboldt E of Berry Summit , Hwy. 299 Comment
  SD62056  Taxus brevifolia Darley F. Howe 1965-8-10 Humboldt 9.8 miles west of Willowcreek on U. S. #299 885 Comment
  UC1198892  Tellima grandiflora Joseph P. Tracy Jul 16 1930-Jul 19 1930 9087 Humboldt near McKay Camp (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  JEPS49696  Tellima grandiflora Milo S. Baker 1923-7-20 Humboldt near South Yager Creek (Redwood House Road) Comment
  UC1196164  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1947-4-27 17672 Humboldt Metropolitan 30 Comment
  UC668275  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1937-5-30 15308 Humboldt along creek 3 mi n Blocksburg; Larrabee Creek 457 Comment
  UC1222645  Thlaspi californicum Joseph P. Tracy 1951-5-20 19405 Humboldt at serpentine rockpile toward Ashfield Butte Kneeland Prairie; , toward Ashfield Butte 762 Comment
  CAS-BOT-BC81311  Thuja plicata Carl B. Wolf 1930-10-25 1764 Humboldt along the Blue Lake to Willow Creek Road (Lord Ellis Road), 9 miles above Blue Lake 243 Comment
  NY17207  Thuja plicata A. Kellogg 1868-1 933 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SBBG34243  Thuja plicata M. Van Rensselaer 1938-3-31 Humboldt Humboldt County [no specific locality] Comment
  CAS-BOT-BC81304  Thuja plicata Belle Richardson Jackson 1939-9-15 s.n. Humboldt Trinity River, near Dutch Comment
  UCR3513  Tiarella trifoliata var. unifoliata David Whistler, H. M. Whistler 1964-7-29 640729- 5 Humboldt 0.2 mi north of Meyers Flats on U.S. 101 75 Comment
  UC302171  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1925-7-5 7181 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  HSC55632  Tolmiea diplomenziesii Overton, Butler 1979-7-24 9634 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  UC1198897  Tolmiea diplomenziesii Joseph P. Tracy 1924-6-1 6689 Humboldt Lawrence Creek Northern Coast Ranges (at crossing of the Kneeland Road) 609 Comment
  RSA80427  Tonella tenella Margaret Stason 1938-4-14 12410 Humboldt Few miles east of Arcata on Weaverville Road. Comment
  POM256868  Torilis arvensis Archie Cathey 1938-7-30 s.n. Humboldt At Cathey Ranch, Miranda 152 Comment
  UC1051572  Torilis arvensis subsp. arvensis Joseph P. Tracy 1948-8-1 18081 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC906658  Torilis nodosa Joseph P. Tracy 1946-6-15 17558 Humboldt Berry's Mountain on Trinity Highway east of Redwood Creek 609 Comment
  IRVC21927  Toxicodendron diversilobum J. W. Johnson Jul 1962 1397 Humboldt Base of the Samoa Peninsula in the Lamphere-Christensen Dunes Preserve. Comment
  JEPS63933  Toxicodendron diversilobum W. L. Jepson 1902-7-10 2003 Humboldt S. Fork Trinity R., Martin's Ranch Comment
  NY274177  Tracyina rostrata J. P. Tracy 1916-6-20 4735 Humboldt Alder Point Comment
  HSC62890  Tradescantia ohiensis J. M. DiTomaso 1979-5-20 1056 Humboldt 0.3 mi. N of Trinidad on Stagecoach Rd. Comment
  CAS-BOT-BC399991  Trautvetteria caroliniensis Joseph P. Tracy 1937-7-2 15387 Humboldt Happy Camp Mountain. (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  BLMAR387  Triantha occidentalis Jennifer Anthony-Wheeler 2004-7-1 387 Humboldt Horse Mtn, mixed conifer in serp.seep Comment
  HSC43157  Trichostema lanceolatum R. Sutherland 1976-8-19 1 .19876 Humboldt 259 Comment
  CHSC31274  Trientalis latifolia Mark Stopher 1980-5-20 70 Humboldt In dense forest along the Van Duzen River near Rte 36. Comment
  RSA239714  Trientalis latifolia Larry E. DeBuhr 1973-4-23 985 Humboldt Richardson Grove Redwood State Park. Comment
  RSA460855  Trientalis latifolia W. Hutchinson 1927-05 s.n. Humboldt [Unspecified] Comment
  HSC34958  Trifolium bifidum Thomas W. Nelson 1975-5-24 1872 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC160938  Trifolium bifidum var. decipiens J. P. Tracy 1900-5-28 812 Humboldt immediate vicinity Eureka 0 Comment
  UC1541261  Trifolium breweri Harold E. Parks May 1935 4997 Humboldt Egg Point Trinidad Comment
  HSC71452  Trifolium campestre J. P. Smith 1973-5-26 6811 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC33569  Trifolium cyathiferum Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  UC1223490  Trifolium cyathiferum Joseph P. Tracy 1950-7-6 19007 Humboldt 2 mi s Burr Valley (on Albee Rd) 1158 Comment
  SEINET6934955  Trifolium depauperatum var. amplectens Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  UC1103438  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1921-5-30 5481 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC77333  Trifolium dubium L. P. Janeway 1983-4-30 239 Humboldt 21 Comment
  RSA91498  Trifolium dubium F. W. Peirson 1923-7-11 3622 Humboldt 20 miles north of Eureka Comment
  UCD108860  Trifolium dubium P. B. Kennedy 1929-6-14 10323 Humboldt Eureka. Comment
  HSC40039  Trifolium eriocephalum Thomas W. Nelson, James Nelson 1976-7-1 2890 Humboldt Ridge N of Bear Creek 1494 Comment
  UC495648  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-21 8769 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  UC495653  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-7-6 8835 C Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC302111  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1926-7-5 7729 B Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  HSC1864  Trifolium fucatum Elrid H. Spinas 1948-5-15 20 Humboldt Horse Mtn. Comment
  JEPS65883  Trifolium fucatum W. L. Jepson 1934-5-8 16718 Humboldt n Redway (South Fork Eel River) Comment
  HSC79552  Trifolium fucatum Kenneth Clark 1980-4-18 573 Humboldt 350 yards SE of Dead Man's Gulch (Point No Pass) 8 Comment
  UC495732  Trifolium fucatum Joseph P. Tracy 1927-6-5 8100 Humboldt s Yager Creek (valley); Northern Coast Ranges 762 Comment
  HSC15234  Trifolium longipes subsp. oreganum D. E. Anderson 1965-6-1 3770 Humboldt On ridge along Friday Hill Rd., about 2 mi. from its junction with Titlow Hill Rd. 1159 Comment
  UCD111290  Trifolium longipes subsp. oreganum Tofsrud 1948-9-1 s.n. Humboldt Road junction near summit of Horse Mt. 1463 Comment
  HSC98896  Trifolium longipes subsp. shastense Cara Witte 2008-6-11 706 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. 1438 Comment
  SBBG3831  Trifolium macraei H. and M. Dearing 1939-5-25 3441 Humboldt near Samoa Comment
  RSA32659  Trifolium microcephalum Doris K. Kildale 1925-6-28 808 Humboldt Kneeland Prairie. Comment
  HSC100537  Trifolium microcephalum Carl C. Marshall May 1886 235 Humboldt Near Trinidad. Comment
  HSC45143  Trifolium microcephalum R. Sutherland 1978-5-12 12 .12578 Humboldt 282 Comment
  HSC38068  Trifolium microdon Thomas W. Nelson, Jane P. Nelson 1976-5-30 2639 Humboldt McKeown Ranch, N of Dinsmore. Comment
  SEINET12157235  Trifolium microdon J. P. Tracy 1936-1 14840 Humboldt nr Samoa, on Humboldt Bay 6 Comment
  UC1103444  Trifolium oliganthum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3609 Humboldt near Hydesville; Northern Coast Region Comment
  UC1197487  Trifolium oliganthum Joseph P. Tracy 1932-5-1 9870 Humboldt Garberville vicinity Northern Coast Ranges 121 Comment
  JEPS66013  Trifolium oliganthum Milo S. Baker 5560 Humboldt s Garberville Comment
  SBBG67249  Trifolium pratense R. Hartwell 1938-8-6 Humboldt near Eureka Comment
  HSC12341  Trifolium pratense Steve Dorei 1970-10-26 113 Humboldt SE corner of Old Arcata Rd. and Freshwater Rd. Comment
  RSA349641  Trifolium pratense Unspecified 1936-8-18 4815 Humboldt South o f Eureka Comment
  RSA43865  Trifolium pratense H. M. Pollard 1947-8-9 s.n. Humboldt Roadside west of Orleans Comment
  HSC103979  Trifolium subterraneum Kyle Brown 2015-4-25 42 Humboldt Arcata, trail along the Mad River 8 Comment
  UC16775  Trifolium variegatum var. variegatum Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5684 D Humboldt Hoopa Valley Comment
  UC160945  Trifolium variegatum var. variegatum J. P. Tracy 1907-7-10 2587 Humboldt Eureka vicinity 0 Comment
  SD53239  Trifolium virescens Darley F. Howe 1962-5-22 3308 Humboldt 0.7 mile east of Orick on Bald Mt. Road. 395 Comment
  HSC15235  Trifolium willdenovii Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  JEPS4396  Trifolium willdenovii Joseph P. Tracy 1927-6-12 8169 Humboldt lower slopes Horse Mtn; Northern Coast Ranges 914 Comment
  UC1197514  Trifolium willdenovii Joseph P. Tracy 1932-5-17 10068 Humboldt at Berry's Redwood Creek; Northern Coast Ranges 274 Comment
  UC1197532  Trifolium willdenovii J. P. Tracy 1905-4-16 2162 Humboldt Ocean View Cemeter Eureka vicinity 0 Comment
  UC1197039  Trifolium wormskioldii Joseph P. Tracy 1927-6-18 8174 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  CAS-BOT-BC451808  Triglochin maritima Alice Eastwood 1907-5-15 s.n. Humboldt Samoa Comment
  HSC14178  Triglochin maritima D. E. Anderson 1962-5-10 2209 Humboldt Lanphere's Comment
  UCR121761  Triglochin maritima George K. Helmkamp, E. A. Helmkamp 2001-7-8 6995 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  HSC39195  Trillium albidum D. E. Anderson, J. P. Smith 1971-7-6 - 1330 Humboldt 1.0 mi. W of Pine Ridge Summit, 6 mi. E of junction with Redwood Valley Rd. Comment
  UC1197821  Trillium albidum Curtis Drake March 1932 Humboldt Comment
  HSC15690  Trillium kurabayashii H. S. Logsdon 1964-4-11 8 Humboldt 4 mi. NE of Orick at Boye's Prairie Comment
  HSC96776  Trillium kurabayashii M. Mesler 2006-5-25 603 Humboldt Bald Hills FS, 18.8 mi. SE of Hwy. 101 915 Comment
  CHSC28032  Trillium ovatum L. Greenhill 1977-4-6 12 Humboldt Abundant population 10 ft. from n side of highway 36, 1mile w from Grizzly Creek State Campground. 91 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
  HSC15692  Trillium ovatum W. D. Stevens 1964-3-21 1 Humboldt 1.0 mi. E of Hwy. 299 on Lindsay Rd. Comment
  POM290755  Trillium ovatum Lyman Benson 1928-7-8 391 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; Watershed: S Fork Eel River. 61 Comment
  RSA168951  Trillium ovatum Joseph P. Tracy 1950-4-20 18613 Humboldt 1 mile west of Dinsmores on Van Duzen River. Comment
  SEINET10275389  Trillium ovatum Unknown 1963-2-24 52 Humboldt altitude ca 250 ft, floor of Redwood Forest; Nelson Grove near bank of Eel River, Humboldt State Park Comment
  SEINET12051358  Trillium rivale F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -294 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  JEPS11786  Triodanis biflora Lincoln Constance 1934-6-4 818 Humboldt Look Prairie Bull Creek Region (and Bull Cr. road to Dyerville, South Fork Eel River); South Fork Eel River, , Look Prairie Comment
  UC169335  Triodanis perfoliata Joseph P. Tracy July, 1908 2912 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges, ridge btw Van Duzen and Mad Rivers 914 Comment
  HSC72575  Triphysaria eriantha J. P. Smith, J. O. Sawyer 1976-5-2 8637 Humboldt Redwood Valley Comment
  HSC95575  Triphysaria eriantha subsp. eriantha Andrea Pickart 2002-3-29 17 Humboldt Samoa Dunes 0 Comment
  JEPS26220  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1917-5-30 4805 Humboldt Little River Beach Northern Coast Ranges, Little River Beach (sand dunes) 6 Comment
  CDA41899  Triphysaria pusilla E. C. Whitney 1966-4-25 s.n. Humboldt E. Baird property, Hydesville. 0 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
  HSC102548  Trisetum canescens M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1536 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC1103150  Trisetum canescens J. P. Tracy 1900-7-4 877 Humboldt opposite Eureka (Sand Hills of Ocean Beach at Samoa); Samoa Comment
  UC1541569  Trisetum canescens Harold E. Parks Jun 1934 1987 Humboldt Spruce Cove; Trinidad Comment
  UC163654  Trisetum canescens Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5494 -5 Humboldt Camp Grant; North Coast Ranges Comment
  UCD93603  Trisetum canescens P. B. Kennedy 1923-8-3 s.n. Humboldt Bluff Creek to Orrick. Comment
  UC180486  Trisetum cernuum Joseph P. Tracy 1914-7-5 4546 Humboldt Bald Mountain Northern Coast Ranges (between High Prairie and Snow Camp) 1066 Comment
  UCD93901  Trisetum cernuum Freed W. Hoffman 1946-5-23 1722 Humboldt Boise Park, Willow Creek. Comment
  UC15026  Triteleia bridgesii Harley P. Chandler June, 1901 1344 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC1225867  Triteleia hyacinthina Joseph P. Tracy 1942-6-15 17124 Humboldt near Redcrest resort (Englewood); Englewood 91 Comment
  JEPS557  Triteleia laxa Joseph P. Tracy 1938-7-5 16001 Humboldt 5 mi e Carlotta (by old Strong's District School House) 45 Comment
  RSA378052  Triteleia laxa Hutchinson 1927-05 s.n. Humboldt [No locality information provided] Comment
  SD46480  Triteleia laxa E. K. Balls, L. W. Lenz 1956-6-12 21663 Humboldt On steep, open, grassy slopes withscattered trees, 23 miles southwest of Willow Creek, along U.S. Highway 299 toward Arcata. 640 Comment
  UC1225865  Triteleia laxa Joseph P. Tracy 1947-6-8 17704 Humboldt open flat by old Strong's District School House (five mi e of Carlotta) 45 Comment
  CHSC79895  Triticum aestivum Gordon Leppig; Sylvia Leppig, Kai Neander 2000-4-14 1293 Humboldt Arcata, UTM zone 10, 4525N, 409E. 3 Comment
  HSC100450  Troximon heterophyllum Carl C. Marshall May 1887 494 Humboldt Kneeland Prairie. Comment
  SBBG11120  Tsuga heterophylla D. E. Breedlove 1961-7-4 669 Humboldt US Hwy 299, 4.1 mi E of the N fork of the Mad River 609 Comment
  HSC93497  Typha latifolia Gordon Leppig 1998-6-8 899 Humboldt Arcata Marsh and Wildlife Sanctuary, SW side of pond. 2 Comment
  HSC62857  Umbellularia californica J. M. DiTomaso 1979-4-15 877 Humboldt Richardson Grove State Park, 80mi S of Eureka on Hwy. 101 Comment
  SEINET202729  Urtica dioica subsp. holosericea Joseph P. Tracy 1950-9-22 19369 Humboldt Klamath River, near Slate Creek. 8 miles below Orleans. 122 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
  CAS-BOT-BC193958  Vaccinium cespitosum L. B. Kildale 1931-8-23 s.n. Humboldt Snow Camp 1219 Comment
  CAS-BOT-BC193963  Vaccinium cespitosum Doris Kildale 1931-5-10 10581 Humboldt Snow Camp Comment
  CAS-BOT-BC199322  Vaccinium ovatum Carl B. Wolf 1930-10-24 1761 Humboldt Along the Klamath River 2 miles below mouth of Salmon River 152 Comment
  HSC7908  Vaccinium ovatum J. Pursell 1964-10-17 10178 Humboldt Road to Box Camp in Hoopa Valley 762 Comment
  CAS-BOT-BC199421  Vaccinium parvifolium Elmer I. Applegate 1923-9-10 s.n. Humboldt Martin's Ferry, Klamath River Comment
  HSC74355  Vaccinium parvifolium Gail Newton 1980-6-17 226 Humboldt Near Onion Mtn. 1341 Comment
  CAS-BOT-BC199494  Vaccinium uliginosum Doris K. Kildale 1925-8-18 1257 Humboldt Trinity Summit - McKay's [McKay] Prairie 1524 Comment
  HSC102019  Vaccinium uliginosum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 920 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC102568  Vancouveria hexandra M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1555 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC3383  Vancouveria hexandra Frances Oldridge 1946-1 Humboldt Eureka Comment
  POM118508  Vancouveria hexandra Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UC1196345  Vancouveria hexandra Joseph P. Tracy 1937-7-24 15535 Humboldt Trinity Summit, head of Little Hors-Linto Creek Little Hors-Linto Creek; Trinity Summit, Little Hors-Linto Creek 1371 Comment
  HSC12212  Vancouveria hexandra Gary J. Stebbins 1970-5-17 82 Humboldt Along Jolly Giant Creek up from HSU dorm parking lot 1.1 mi. 70 Comment
  HSC69623  Vancouveria hexandra R. Kalal 1979-5-20 68 Humboldt Fickle Hill Rd., 1 mi. E of 11th St. 189 Comment
  SEINET10932381  Vancouveria planipetala Mary Merello 1993-6-19 Merello 658 Humboldt Along the Weott-Honeydew Road just outside of the Rockerfeller Forest boundary. Redwood Forest. 90 Comment
  HSC102030  Veratrum californicum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 932 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  UC1225852  Veratrum insolitum Joseph P. Tracy 1948-8-15 18120 Humboldt on Ridge 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  HSC102165  Veratrum viride M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1075 Humboldt Patterson Meadows 1566 Comment
  HSC21740  Verbena lasiostachys var. lasiostachys Paul Shields Aug 1955 Humboldt 5 mi. N of Meyers Flat. Comment
  UC154022  Verbena lasiostachys var. lasiostachys Joseph P. Tracy 1908-6 2775 Humboldt opposite Buck Mt; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC55630  Veronica americana Walter Overton, Marvin Butler 1979-7-24 9628 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC92212  Veronica anagallis-aquatica D. E. Anderson, Thomas W. Nelson 1972-5-9 Humboldt Just W of Weitchpec on the road to Pecwan Comment
  UC501613  Veronica scutellata Frank W. Peirson 1923-7-11 3838 Humboldt 7 mi n of Arcata Comment
  HSC72498  Veronica serpyllifolia subsp. humifusa J. P. Smith, Steve Selva 1970-6-30 4135 Humboldt Comment
  RSA91235  Vicia angustifolia F. W. Peirson 1926-7-13 7059 Humboldt Mad River, near Blue Lake Comment
  JEPS66158  Vicia benghalensis Joseph P. Tracy 1924-6-28 6701 Humboldt Hydesville; Northern Coast Ranges 91 Comment
  UC17003  Vicia gigantea Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5434 Humboldt near Hubbard Station Comment
  HSC38207  Vicia hirsuta Thomas W. Nelson 1976-4-20 2381 Humboldt 12th and B St., Arcata Comment
  HSC48780  Vicia sativa subsp. nigra Brad Klipfel 1974-5-11 337 Humboldt SW side of Big Lagoon Comment
  UC17027  Vicia sativa subsp. sativa Joseph Burtt Davy and Walter C. Blasdale 1899-5 5548 Humboldt near Scotia Comment
  HSC49921  Vinca major Maralyn O'Meara 1973-2-9 126 Humboldt McKinleyville, N side of Mad River along N Bank Rd., 0.5 mi. E of Hwy. 101 Comment
  CAS-BOT-BC263950  Viola adunca L. B. Kildale 1927-7-10 3723 Humboldt Gans Prairie, N Bald Hills Road 609 Comment
  HSC48825  Viola bakeri Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 36 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  UC1198417  Viola bakeri Joseph P. Tracy 1942-6-23 17257 Humboldt ridges near Water-dog Lakes; Trinity Summit 1828 Comment
  UC1198458  Viola glabella Joseph P. Tracy 1913-6-20 4222 Humboldt in valley of Van Duzen River (opposite Buck Mountain); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  UC1762505  Viola glabella Milo S. Baker 1947-8-10 11905 Humboldt along trail towards Trinity Summit from end of forest rd. from Hoopa 1432 Comment
  UC1198428  Viola lobata subsp. integrifolia Joseph P. Tracy 1949-8-4 18421 1/2 Humboldt Mud Springs; Trinity Summit, Mud Springs 1341 Comment
  HSC32842  Viola ocellata Thomas W. Nelson, James Nelson 1973-5-28 946 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC45620  Viola ocellata Diane L. Reed 1978-4-22 31 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  UC164839  Viola palustris Joseph P. Tracy 1901-5-30 1105 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  UC164820  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1908-6-9 2667 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  RSA168956  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1950-4-20 18607 Humboldt Dinsmore's, along Van Duzen River, opposite Buck Mountain. 762 Comment
  HSC44318  Viola sempervirens J. Walker 1977-4-23 11 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  SEINET200802  Viola sempervirens J. P. Tracy 1904-4-3 2006 Humboldt Eureka 0 Comment
  SEINET11154271  Viola sempervirens J. P. Tracy 1904-4-3 2006 Humboldt Eureka 0 Comment
  UC1761977  Viola sempervirens J. P. Tracy Apr 1941 Humboldt somewhere near Willow Creek Comment
  UC502968  Viola sempervirens Joseph P. Tracy 1927-5-15 8063 Humboldt near summit Hoopa Mountain (on road w from Hoopa to Bair's); Northern Coast Ranges, Hoopa Mountain 1066 Comment
  HSC98569  Viola sheltonii Cara Witte 2008-6-9 691 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1503 Comment
  UC1761734  Viola sheltonii W. K. Parks Jul 1933 6237 Humboldt South Fork Mt. Comment
  JEPS40256  Vitis californica W. L. Jepson 1924-9-20 10653 Humboldt Richardson Grove South Fork Eel River Comment
  HSC9843  Vulpia bromoides D. B. Bader 1963-3-29 33 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101. Comment
  SEINET3132612  Vulpia microstachys var. microstachys D. E. Anderson, JO Sawyer, JP Smith Jr. 1970-5-10 5056 Humboldt Along road from Redwood Creek to Hoopa, ca. 1-3 mi. W of Hoopa Comment
  UC1103720  Vulpia microstachys var. microstachys Joseph P. Tracy 1926-5-2 7441 1/2 Humboldt near The South Fork (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  SEINET200329  Vulpia microstachys var. pauciflora Joeseph P. Tracy 5818 Humboldt Kneeland Prairie 762 Comment
  SEINET200330 Image available Vulpia microstachys var. pauciflora Joeseph P. Tracy 4463 Humboldt Fort Seward 122 Comment
  UC1145194  Vulpia microstachys var. pauciflora Joseph P. Tracy 1936-6-17 14961 Humboldt nw slope Buck Mountain (Burr Valley); , Burr Valley 1066 Comment
  UC277197  Vulpia microstachys var. pauciflora Joseph P. Tracy 1921-6-12 5818 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  HSC65449  Vulpia myuros J. P. Smith 1973-5-26 6796 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC9928  Vulpia myuros H. E. Parks, S. T. Parks Jun 1937 5897 Humboldt Spruce Cove. Trinidad. 61 Comment
  UC180482  Vulpia myuros var. myuros Joseph P. Tracy 1914-5-14 4432 Humboldt Fort Seward; Northern Coast Ranges 121 Comment
  HSC70753  Woodwardia fimbriata R. York 1980-5-17 530 Humboldt Near Le Perron Peak 1066 Comment
  HSC98069  Wyethia longicaulis Cara Witte 2007-7-19 546 Humboldt Buck Flat. 1482 Comment
  UC1198221  Xerophyllum tenax Joseph P. Tracy 1933-7-11 12671 Humboldt Horse Mountain 1432 Comment
  UC1225857  Xerophyllum tenax Joseph P. Tracy 1947-7-9 17862 Humboldt Horse Mountain 1432 Comment
  HSC15760  Zigadenus fremontii R. Spellenberg 1965-6-14 1127 Humboldt Kneeland Prairie, at Kneeland Airport 6 mi. SE of Kneeland Comment
  RSA168946  Zigadenus micranthus Joseph P. Tracy 1950-6-25 18882 Humboldt Burr Valley. On NW slope of Buck Mtn. 1067 Comment
  CDA868  Zostera japonica Gordon Leppig 2002-7-8 1783 Humboldt Indian Island, SW shore, mid-intertidal zone, +1.2 MLW. 0 Comment
  HSC90651  Zostera marina L. Watson, J. Meninga Sep 1991 42 Humboldt Cooperative Management Area, Mad River Slough and dunes Comment



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