Search Results — 2000 specimen records retrieved (1387 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC77963  Abies concolor Henry M. Pollard 1944-9-1 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC102514  Abies concolor M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1500 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC73937  Abies concolor Gail Newton 1980-6-24 593 Humboldt Near Ladder Rock 1570 Comment
  HSC99689  Abies concolor T. Jimerson, J. Pageau 1979-8-10 714 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  SD136394  Abies grandis Doris Kildale Niles 1941-7-25 Humboldt Arcata Comment
  UC502904  Abies grandis Joseph P. Tracy 1932-3-20 9781 Humboldt Trinidad Northern Coast Region, Trinidad 60 Comment
  SD41412  Abronia latifolia Edith A. Purer 1932-7-27 4154 Humboldt Near Samoa Comment
  SEINET10838870  Abronia latifolia Mary Merello 1993-6-19 Merello 663 Humboldt Along Petrolia-Capetown Road. Pacific Coastal dunes. 40 Comment
  UCD109781  Abronia latifolia Linda M. Barker 1976-5-13 1490 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCD109784  Abronia latifolia Roman Gankin 1965-8-6 558 Humboldt 1.3 miles south of Samoa, Samoa Peninsula. Comment
  RSA0025081  Abronia latifolia I. L. Wiggins 1932-7-19 5888 Humboldt Near Clam Beach, eight miles north of Arcata. Comment
  HSC2790  Acer circinatum Doris K. Kildale 1925-6-24 750 Humboldt Fortuna, Carson Woods Comment
  UC502961  Acer circinatum Joseph P. Tracy 1928-5-6 8427 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 609 Comment
  CAS-BOT-BC330606  Acer glabrum var. glabrum Carl B. Wolf 1937-9-13 9336 Humboldt North Coast Range, Clear Lake between Horse Mt. & Grouse Mt. 1524 Comment
  HSC57964  Acer glabrum var. torreyi G. L. Clifton, Griswold 1979-7-31 11671 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  SEINET10905087  Achillea Mary Susan Taylor 1982-10-24 Taylor 5173 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  BLMAR746  Achillea millefolium Kate McGrath 2015-7-7 746 Humboldt Samoa Peninsula, Throughout the EPPA 1 Comment
  HSC57017  Achillea millefolium Overton, Butler 1979-7-24 9624 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC72789  Achillea millefolium M. A. Baker 1980-6-26 2399 Humboldt Near Sims Creek 610 Comment
  HSC73777  Achillea millefolium M. A. Baker 1980-6-7 1770 Humboldt Near Brush Mtn. 1128 Comment
  UC1199375  Achillea millefolium J. P. Tracy 1901-7-28 1220 Humboldt immediate vicinity Eureka 0 Comment
  UCSB30612  Achillea millefolium Edwards, David 1974-7-26 Humboldt At the top of the E. bank of the Mad River, at its junction with Puter Creek, ca. 2 mi. SW. of Korbel 27 Comment
  CAS-BOT-BC28582  Achillea millefolium J. Clausen 1939-6-23 1728 Humboldt On the Bull Creek Road near intersection with Redwood Highway at Dyerville Comment
  HSC4573  Achillea millefolium John A. DuBois 1962-5-23 31 Humboldt 15 mi. E of Arcata Comment
  HSC74572  Achlys triphylla M. A. Baker 1980-5-17 1190 Humboldt Near Le Perron Peak 792 Comment
  SFV5403  Achlys triphylla J. Turner, F. M. Ball 1962-7-10 s. n. Humboldt East Fork Willow Creek Forest Camp. Highway 299 about 5 miles west of Willow Creek. 457 Comment
  CAS-BOT-BC400025  Achlys triphylla Joseph P. Tracy 1933-5-21 12208 Humboldt North Coast Ranges. McClellan Mt. 670 Comment
  UCD50676  Achnatherum lemmonii A. H. Murphy 1947-6-24 s.n. Humboldt Horse Mtn., s.e. of Berry's Summit (US Hwy. 299) east of Blue Lake, Humboldt County, California. Comment
  RSA167290  Achnatherum lemmonii var. lemmonii Joseph P. Tracy 1951-6-26 19563 Humboldt Halfway between Snow Camp & Twin Lakes (at Preston's old gate near road) Comment
  RSA10033  Achnatherum occidentale subsp. californicum Joseph P. Tracy 1932-7-17 10667 Humboldt Trinity Summit, Ridges east of Corral Prairie 1829 Comment
  UC526665  Achnatherum occidentale subsp. californicum Joseph P. Tracy 1932-7-12 10473 Humboldt Head of Brett Hole Klamath Mountains, Brett Hole 1828 Comment
  HSC45096  Acmispon micranthus R. Sutherland 1978-5-13 3 .13578 Humboldt Mattole River. 282 Comment
  HSC71716  Acmispon nevadensis var. nevadensis M. A. Baker 1980-6-26 2439 Humboldt Near Sims Creek 610 Comment
  UC668268  Aconitum columbianum Joseph P. Tracy 1937-8-12 15661 Humboldt Snow Camp 1402 Comment
  HSC56019  Aconitum columbianum subsp. columbianum Gilbert Muth 1979-7-31 11519 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Hoopa 1417 Comment
  HSC81698  Aconogonon davisiae Thomas W. Nelson 1979-7-11 5020 Humboldt N Trinity Mtn. and ridge to E, SE of Water Dog Lake 1829 Comment
  UC164803  Adenocaulon bicolor Joseph P. Tracy 1909-7-31 3042 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prarie 762 Comment
  UC169341  Adenocaulon bicolor Joseph P. Tracy 1912-7-27 3880 Humboldt Kneeland Prairie 762 Comment
  UC249778 Image available Adiantum X tracyi Joseph P. Tracy 1924-9-16 6868 Humboldt <collector's garden> Eureka; Northern Coast Ranges 30 Comment
  SD9506  Adiantum aleuticum May Canfield Unknown Humboldt Carlotta Comment
  HSC44049  Adiantum aleuticum Thomas W. Nelson, Jane Nelson 1977-6-19 3494 Humboldt Above Alder Springs, N of pond 1585 Comment
  HSC960  Adiantum jordanii D. E. Anderson 1965-5-15 3701 Humboldt About 2 mi. NW of Hoopa on Bald Hills Rd. Comment
  UC1222301  Aesculus californica Joseph P. Tracy 1950-7-6 18983 Humboldt Bridgeville 198 Comment
  UC154271  Agastache urticifolia Joseph Burtt Davy 1899-6-20 5694 Humboldt Hoopa Valley 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
  HSC5642  Ageratina occidentalis J. P. Tracy 1922-7-15 6101 Humboldt Along Mad River, near Blue Lake Comment
  HSC4595  Agoseris grandiflora J. W. Johnson 1961-8-17 1004 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  JEPS36268  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1921-6-12 5816 Humboldt 2500 ft Kneeland Prairie Comment
  UC249882  Agoseris retrorsa Joseph P. Tracy 1923-6-3 6256 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  POM319539  Agrostis Patricia Wilder 1968-8-21 4367 Humboldt Big Lagoon Park, just west of U.S. 101 15 Comment
  UC249861  Agrostis alba Joseph P. Tracy 1924-8-17 6819 Humboldt wet places in woods Northern Coast Ranges, Trinidad 60 Comment
  BLMAR424  Agrostis capillaris Jennifer Anthony-Wheeler 2005-7-20 424 Humboldt Lost Coast Headland, growing in grazing allotment 91 Comment
  HSC8829  Agrostis capillaris D. J. Wilder 1965-5-9 32 Humboldt Arcata, 151 G st. Comment
  UC1145066  Agrostis densiflora Joseph P. Tracy 1938-8-28 16136 Humboldt clay bluff facing ocean Stone Lagoon 6 Comment
  SEINET201009  Agrostis diegoensis Doris Kildale Humboldt Trinity Summit 1829 Comment
  HSC102149  Agrostis exarata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1056 Humboldt Patterson Meadows 1566 Comment
  HSC98576  Agrostis exarata Cara Witte 2007-7-20 556 Humboldt Board Camp Butte. Forest Serivce Road 4E27. 1502 Comment
  POM247142  Agrostis exarata H. E. Parks 1935-06 5607 Humboldt Spruce Cove, Trinidad. Comment
  UC726371  Agrostis exarata A. A. Heller 1923-7-8 13772 Humboldt near Fortuna Comment
  UCD52338  Agrostis exarata R. Tofsrud 1947-7-1 201 Humboldt near Harris. Comment
  UCD52429  Agrostis exarata P. B. Kennedy 1923-8-3 s.n. Humboldt south of Scotia by road off highway. Comment
  RSA293142  Agrostis gigantea Thomas W. Nelson, James Nelson 1976-7-28 3046 Humboldt West of Alder Springs along 2S08 1555 Comment
  HSC35455  Agrostis microphylla J. D. Ackerman 1975-8-2 603 Humboldt Intersection of Indianola Cutoff and US Hwy 101. 3 Comment
  HSC1799  Agrostis oregonensis William J. Ferlatte, B. D. Rogers 1966-8-15 3124 Humboldt 6 mi. E of Korbel; Cutoff Red wood Comment
  SEINET186044  Aira caryophyllea H. E. Parks, S. T. Parks 5850 Humboldt Spruce Cove Trinidad Comment
  HSC8871  Aira praecox R. J. Vernimen 1963-4-27 35 Humboldt 0.5 mi. off Samoa Blvd. behind Georgia-Pacific dump, 7.5 mi. SW of Arcata Comment
  UC526678  Aira praecox Joseph P. Tracy 1925-6-13 7099 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC1198195  Allium amplectens Joseph P. Tracy 1927-5-14 8004 Humboldt near South Fork; Trinity River Valley 182 Comment
  CAS-BOT-BC460750  Allium amplectens Doris K. Kildale 1926-5-9 2000 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC460753  Allium amplectens Volney Rattan 1903-1-1 s.n. Humboldt Kneeland Prairie Comment
  UC1198198  Allium bolanderi Joseph P. Tracy 1936-6-10 14923 Humboldt mountain slopes w mouth of South Fork of Trinity River; South Fork of Trinity River 304 Comment
  RSA254786  Allium bolanderi var. bolanderi Thomas W. Nelson, James Nelson 1973-5-28 936 Humboldt McKeown Ranch north of Dinsmore. Comment
  HSC100546  Allium campanulatum Carl C. Marshall Jun 1886 304 Humboldt Trail E of Hoopa. Comment
  HSC102062  Allium campanulatum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 964 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC103075  Allium campanulatum Sydney Carothers 2014-6-11 15 Humboldt Six Rivers Nat'l Forest, Lassics Botanical Area, upper north face of Mt. Lassic 1777 Comment
  HSC82040  Allium falcifolium Thomas W. Nelson, James Nelson 1980-6-10 5407 Humboldt Along Swayback Ridge 4-wheel drive rd. 2.5 mi. N of the junction with USFS rd. 1S07 1463 Comment
  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
  UCD138544  Allium hoffmanii Thomas W. Nelson; James L. Nelson 1980-6-10 5417 Humboldt along road to Red Mountain 0.5 mile west of junction with Swayback Ridge Road. 1371 Comment
  UC666906  Allium membranaceum Joseph P. Tracy 1929-6-3 8599 Humboldt Trinity River Valley at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  UC666924  Allium unifolium Joseph P. Tracy 1928-5-20 8437 Humboldt Bear River Ridge Northern Coast Ranges, Bear River Ridge 609 Comment
  CAS-BOT-BC476602  Allium unifolium Doris K. Kildale 1926-5-15 1971 Humboldt Fleener Creek. Comment
  HSC2988  Allium validum J. P. Tracy 1930-7-16 8922 Humboldt Near McKay Camp. 1677 Comment
  CAS-BOT-BC170948  Alnus rhombifolia Joseph P. Tracy 1930-11-2 9243 Humboldt Camp Grant, along Eel River 60 Comment
  POM160903  Alnus rhombifolia Joseph P. Tracy 1923-10-14 6574 Humboldt North Dobbyn Creek. 152 Comment
  UC213001  Alnus rhombifolia Joseph P. Tracy 1919-9-27 5303 Humboldt Willow Creek Northern Coast Ranges (near its mouth, (creek is a tributary of Trinity River)) 152 Comment
  CAS-BOT-BC169534  Alnus rubra Doris K. Kildale 1929-2-28 6946 Humboldt Arcata - State Teachers College Comment
  HSC3394  Alnus rubra J. W. Johnson 1961-9-4 1088 Humboldt Along Lanphere Lane near the swamp, Samoa Peninsula Comment
  HSC99493  Alnus rubra K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 153 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
  SEINET201015  Alnus rubra J. P. Tracy 1930-11-16 9255 Humboldt Alton along Van Duzen River 30 Comment
  SD42324  Alnus tenuifolia Carl B. Wolf 1937-8-13 9268 Humboldt North Coast Range, 12 miles east of Hoopa Valley on new road towards Trinity Summit 1675 Comment
  UC54760  Alnus viridis subsp. sinuata Joseph Burtt Davy and Walter C. Blasdale 1899-5 5778 Humboldt Trinity Summit North Coast Ranges (Mendocino, Humboldt, and Del Norte Counties) Comment
  CAS-BOT-BC138146  Alopecurus aequalis var. aequalis Volney Rattan 1903-1-1 s.n. Humboldt Mad River. Comment
  HSC8884  Alopecurus geniculatus True Hoyle 1967-7-15 28267 Humboldt Dolson Ranch, 225 Bayside Rd., Arcata, next to Grade A milking barn 152 Comment
  UCD55896  Alopecurus geniculatus Joseph P. Tracy 1917-6-17 4816 Humboldt in Salmon Creek Valley, at south end of Humboldt Bay. 15 Comment
  OBI22518  Alopecurus saccatus Joseph P. Tracy 1942-6-2 17096 Humboldt Alton Comment
  UC1152032  Alopecurus saccatus Joseph P. Tracy 1951-6-21 19525 Humboldt back of Everett Beck house (formerly George Gray) Hydesville (bed of former Goose Lake) Comment
  UC1222884  Ambrosia artemisiifolia Joseph P. Tracy 1950-9-22 19379 Humboldt 3 mi sw Orleans Comment
  HSC70328  Amelanchier alnifolia M. A. Baker 1980-6-8 1883 Humboldt Near Buck Flat. 1554 Comment
  HSC70381  Amelanchier alnifolia M. A. Baker 1980-6-7 1794 Humboldt Near Brush Mtn. 1128 Comment
  BLMAR626  Amelanchier alnifolia var. semiintegrifolia Jennifer Wheeler 2011-6-15 626 Humboldt Lacks Creek, Pine Ridge Road 914 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
  HSC56327  Amelanchier pallida Overton, Butler 1979-8-2 12680 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1198748  Amelanchier utahensis Joseph P. Tracy 1932-7-18 10719 Humboldt Head of Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  UC154234  Amelanchier utahensis J. P. Tracy 1909-5-2 2953 Humboldt immediate vicinity Eureka 0 Comment
  CHSC2118  Ammophila arenaria M. Anthony 1960-5-14 Humboldt Near Arcata. Comment
  UC205671  Ammophila arenaria Joseph P. Tracy 1918-7-28 5087 Humboldt Ocean Beach at Humboldt Bay, Northern Coast Region Comment
  RSA0089915  Amsinckia menziesii H. E. Parks 1933-03 4282 Humboldt Trinidad. Comment
  HSC17836  Anagallis arvensis C. O. Baker 1962-5-7 34 Humboldt 2 mi. S of Trinidad along Hwy. 101 15 Comment
  HSC69770  Anagallis arvensis R. Kalal 1979-4-21 79 Humboldt Misty Mtn. Tree Farm, Hookton Rd. near Loleta 46 Comment
  UC582520  Anaphalis margaritacea Joseph P. Tracy 1934-8-31 13649 Humboldt Kneeland Prairie 762 Comment
  SEINET11855259  Anaphalis margaritacea Unknown 1933-1 Humboldt Eureka Comment
  UC1222881  Anaphalis margaritacea Joseph P. Tracy 1950-9-10 19363 Humboldt 1 mi inland, on foothills of the Cape Ridge Cape Mendocino 60 Comment
  HSC18008  Anemone deltoidea W. K. Parks Jul 1933 1170 Humboldt S Fork Mtn. Comment
  HSC56146  Anemone deltoidea G. L. Clifton, Griswold 1979-8-1 11975 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UC13934  Anemone deltoidea W. C. Blasdale 1896-6-1 Humboldt in redwoods Freshwater Comment
Read comments
Sep 17 2012
  UC502926  Anemone deltoidea Joseph P. Tracy 1932-7-13 10489 Humboldt near Corral Prairie (Trinity Summit); Klamath Mtns, Trinity Summit 1524 Comment
  HSC98600  Anemone deltoidea Cara Witte 2008-6-15 736 Humboldt Along National Forest 1. 3 miles north from intersection with Forest Service Road 6N01B. 1456 Comment
  JEPS60508  Anemone deltoidea W. L. Jepson 1902-7-15 2029 Humboldt between Mud Spring and Trinity Summit Trinity Summit 1828 Comment
  UCD95449  Anemone deltoidea K. Esau 1934-5-5 s.n. Humboldt Redwood Highway near Scotia. Comment
  HSC100610  Anemone nemorosa Carl C. Marshall Jun 1885 30 Humboldt Redwoods (high up). Comment
  HSC97490  Anemone oregana C. Witte 2007-5-21 48 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1419 Comment
  UC582653  Angelica genuflexa Joseph P. Tracy 1937-8-22 15670 Humboldt 2 mi s of Fields Landing 6 Comment
  UC582654  Angelica genuflexa Joseph P. Tracy 1937-8-22 15670 Humboldt 2 mi s of Fields Landing 6 Comment
  UC1222615  Angelica hendersonii Joseph P. Tracy 1950-9-10 19352 Humboldt Bear River Ridge 609 Comment
Read comments
Oct 12 2007
  SEINET3472178  Angelica hendersonii Unknown 1956-8-29 1967 Humboldt North of Eureka, North of Eureka, near Orick Comment
  CDA38195  Angelica lucida Gordon Leppig 1998-6-18 839 Humboldt Route 101 on Humboldt Bay at mouth of Jacoby Creek. Comment
  HSC21449  Angelica lucida Wm. F. Bowman 1968-11-9 Humboldt Along E edge of Humboldt Bay, along elevated area near railroad tracks. Comment
  HSC70993  Angelica tomentosa Thomas W. Nelson 1977-9-3 3731 Humboldt Old logging road just E of Pine Mtn., Lassics 1433 Comment
  OBI9037  Angelica tomentosa Tracey Call, Viola Call 1966-8-1 2518 Humboldt 2.5 mi up Three Creek Rd. from Willows 427 Comment
  CAS-BOT-BC271452  Anisocarpus madioides Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  UC1199432  Antennaria suffrutescens Joseph P. Tracy 1934-6-14 13216 Humboldt Horse Mountain 1432 Comment
  UC302185  Antennaria suffrutescens Joseph P. Tracy 1926-6-20 7626 Humboldt Horse Mountain 1524 Comment
  HSC10101  Anthoxanthum occidentale L. H. Myers 1963-2-20 17 Humboldt W of Lanpheres Rd, Mad River slough area Comment
  SD53154  Anthoxanthum occidentale Darley F. Howe 1962-5-22 3304 Humboldt 3 miles east of Orick on Bald Mt. road 395 Comment
  HSC8945  Anthoxanthum odoratum E. W. Styskel 1964-4-28 73 Humboldt End of Davis Sreet, at edge of Eel River in Rio Dell Comment
  HSC8947  Anthoxanthum odoratum T. L. Ackerman 1964-4-12 34 Humboldt One mi. up a logging road N from an elementary school near Freshwater Corners Comment
  HSC104450  Anthriscus caucalis Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 3 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  CDA41213  Antirrhinum vexillo-calyculatum subsp. breweri E. C. Whitney 1960-9-1 s.n. Humboldt State Highway 96 near Bluff Creek. 0 Comment
  UC162567  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1911-7-10 3482 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 243 Comment
  UC1198738  Aphanes occidentalis J. P. Tracy 1905-5-21 2184 Humboldt immediate vicinity Eureka 0 Comment
  UCD143195  Aphanes occidentalis Linda M. Barker 1976-4-30 1413 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC48762  Aquilegia formosa Brad Klipfel 1973-6-10 98 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC31632  Aquilegia formosa var. formosa Glenn McGourty 1974-4-27 18 Humboldt 1 mi. from Capetown Bridge Comment
Read comments
May 26 2016
  HSC46039  Aquilegia formosa var. formosa Catherine Chin 1978-5-5 52 Humboldt 5.1 mi. from Ferndale on Mattole Rd. Comment
  UC1222664  Arabidopsis thaliana Joseph P. Tracy 1950-4-23 18637 1/2 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  HSC73687  Arabis glabra M. A. Baker 1980-7-15 2980 Humboldt Near Whiting Ridge. 1341 Comment
  UC1198309  Arabis glabra Joseph P. Tracy 1913-6-13 4106 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1198307  Arabis glabra Joseph P. Tracy 1911-7-12 3522 Humboldt along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  RSA46724  Aralia californica Doris K. Kildale 1936-10-3 15099 Humboldt Willow Creek Comment
  RSA568502  Aralia californica Thekla Mohr 1919-07 s.n. Humboldt Eel River. Comment
  CAS-BOT-BC128696  Arbutus menziesii Doris K. Kildale 1928-5-19 5224 Humboldt Chalk Mountain Comment
  HSC7596  Arbutus menziesii J. W. Johnson 1962-3-15 1184 Humboldt In the woods near Lanphere Lane, Christenson Farm, Samoa Peninsula Comment
  OBI33237  Arbutus menziesii David J. Keil 1983-7-1 17263 Humboldt Ca. 8 mi W of jctn US 101 along Bull Creek Flats rd Comment
  SD64214  Arbutus menziesii W. Bertsch 1953-7-29 203 Humboldt 395 Comment
  UC1196882  Arbutus menziesii Joseph P. Tracy 1941-3-26 16847 Humboldt w of mouth of South Fork Trinity River 457 Comment
  UCR178912  Arbutus menziesii R. G. Swinney 1968-4-13 243 Humboldt North Coast, Lanphere's Preserve, west of Arcata 15 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
  UCR32088  Arctostaphylos canescens David J. Keil 1983-7-2 17321 Humboldt c. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  CAS-BOT-BC25253  Arctostaphylos canescens subsp. canescens D. Norris 1970-5-20 12181 Humboldt Crest of ridge on Big Hill Rd. E of Hoopa. Comment
  CAS-BOT-BC23770  Arctostaphylos columbiana C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. betwwn Shelter Cove and Kenny Comment
  CAS-BOT-BC23813  Arctostaphylos columbiana C. Hart Merriam 1920-9-19 s.n. Humboldt Bald Mt. between Korbel and Redwood Creek Comment
  CAS-BOT-BC23819  Arctostaphylos columbiana Joseph P. Tracy 1936-8-2 15075 Humboldt French Camp Ridge 1066 Comment
  JEPS38611  Arctostaphylos columbiana W. L. Jepson 1921-8-11 9410 Humboldt Big Lagoon 15 Comment
  RSA134585  Arctostaphylos columbiana P. C. Everett, E. K. Balls, George B. Everett 1959-10-26 23975 Humboldt 4 mi. se from Honeydew along Old Coast Road to Ettersburg. 457 Comment
  UC154033  Arctostaphylos columbiana J. P. Tracy 1909-8-22 3079 Humboldt vicinity of Eureka 0 Comment
  UC154034  Arctostaphylos columbiana J. P. Tracy 1909-3-7 2944 Humboldt Immediate vicinity of Eureka 0 Comment
  UC154196  Arctostaphylos columbiana Joseph Burtt Davy and Walter C. Blasdale 1899-5 Humboldt Fruitland Comment
  UC397307  Arctostaphylos columbiana Joseph P. Tracy 1923-2-18 6142 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  UC585923  Arctostaphylos columbiana Joseph P. Tracy 1933-6-13 12583 Humboldt ridge 1 mi s road from Hoopa westward to Bair's; Hoopa Mountain 1219 Comment
  UC585924  Arctostaphylos columbiana Joseph P. Tracy 1934-3-11 13151 Humboldt French Camp Ridge 1066 Comment
  UC673126  Arctostaphylos columbiana Joseph P. Tracy 1940-7-14 16688 Humboldt near KIngs Peak; Wilder Ridge 762 Comment
  UC924266  Arctostaphylos columbiana H. S. Reed 1941-7-27 Humboldt coastal bluffs Orick Comment
  HSC102137  Arctostaphylos glandulosa subsp. glandulosa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1041 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC1052839  Arctostaphylos glandulosa subsp. glandulosa W. L. Colwell 1955-6-7 26 Humboldt one half mi n Grasshopper Mountain lookout (three mi w of Weott); Quad. 29-B-3 914 Comment
  RSA633026  Arctostaphylos manzanita Jon E. Keeley 1996-10-13 27804 Humboldt Salyer Rest Area, east of Salyer, east of Willow Creek on Highway 299. 200 Comment
  CAS-BOT-BC24370  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-4-3 15246 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC24371  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1927-3-10 2993 Humboldt Dobbyns Creek. Comment
  SEINET2031084 Image available Arctostaphylos media Joseph P. Tracy 1923-1 6171 Humboldt Around Humboldt Bay; Table Bluff 61 Comment
  CAS-BOT-BC40066  Arctostaphylos nevadensis subsp. knightii Roman Gankin; W. R. Hildreth 1967-10-26 1179 Humboldt French Camp Ridge21.4 miles east of US 101 on Bald Hills Road (from Orick) Comment
  CAS-BOT-BC40067  Arctostaphylos nevadensis subsp. knightii Walter Knight; Irja Knight 1988-9-5 6360 Humboldt 21 miles up Bald Hill road from US-101 en route to Hoopa. 975 Comment
  SBBG83932  Arctostaphylos nevadensis subsp. knightii R. Gankin, W. R. Hildreth 1967-10-26 1173 Humboldt French Camp Ridge, 21.4 mi E of US 101 on Bald Hills Rd from Orick Comment
  SEINET11988226  Arctostaphylos nevadensis subsp. knightii W. Knight, Knight, I. 1981-1 4325 Humboldt Tildel Regional Park Botanic Garden, Berkeley, orig. from French Camp Comment
  SEINET11989136  Arctostaphylos nevadensis subsp. knightii W. Knight, Knight, I. 1982-1 4517 Humboldt Tilden Botanic Garden, Berkeley, orig. from French Camp on road between Orick & Wichepec Comment
  CAS-BOT-BC46626  Arctostaphylos patula Doris Kildale Gillespie 1931-6-7 10594 Humboldt South Fork Mt. Blake Lookout. 1726 Comment
  CAS-BOT-BC46627  Arctostaphylos patula L. B. Kildale 1930-8-10 10533 Humboldt Snow Camp. Head of Redood Creek. Comment
  UC1198667  Arctostaphylos patula Joseph P. Tracy 1942-9-6 17313 Humboldt along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  UC1198669  Arctostaphylos patula Joseph P. Tracy 1939-8-16 16407 Humboldt Horse Mountain 1402 Comment
  CAS-BOT-BC43995  Arctostaphylos uva-ursi Bolimannsou 1907-5-15 s.n. Humboldt Samoa Comment
  RSA70889  Arctostaphylos uva-ursi R. S. Woglum 1938-8-29 12639 Humboldt North Coast: Samoa; Samoa Peninsula separating Humboldt Bay from the Pacific Ocean. . Comment
  SEINET2029875 Image available Arctostaphylos uva-ursi Joseph P. Tracy 1940-10-3 16740 Humboldt Near Samoa, on Humboldt Bay 6 Comment
  SEINET2031083 Image available Arctostaphylos uva-ursi Joseph P. Tracy 1940-1 16740 Humboldt Sand dunes, near Samoa, on Humboldt Bay 6 Comment
  SEINET11987223  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 3934 Humboldt Tilden Botanic Garden, Berkeley, orig. from S end of sand spit at Samoa Comment
  SEINET11987353  Arctostaphylos uva-ursi var. coactilis W. Knight, Knight, I. 1981-1 4047 Humboldt Tilden Botanic Garden, Berkeley, orig. from Samoa Comment
  JEPS86731  Arctotheca calendula G. D. Barbe 1988-7-18 4293 Humboldt on, 3.4 mi w of Main Street, in Larry Pries dairy Centerville Beach Road; Ferndale Comment
  UCD16179  Arctotheca calendula J. DiTomaso 2000-8-14 s.n. Humboldt West of town of Ferndale, East of Centerville Beach, along Centerville Rd., at Pries Dairy, near Russ Creek. 200 Comment
  UCD129123  Arctotheca calendula T. C. Fuller; G. D. Barbe 1989-6-8 4321 Humboldt Larry Pries dairy, 3.4 miles west of Main Street, on Centerville Beach Road, Ferndale. Comment
  HSC16896  Armeria maritima subsp. californica F. B. Plett 1963-4-27 33 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  HSC59197  Armeria maritima subsp. californica Terry Roth 1979-5-24 78 Humboldt Samoa Dunes near the U.S. Coast Guard Station 5 Comment
  UC302176  Arnica cernua Joseph P. Tracy 1926-5-2 7449 Humboldt near Ruby Creek; Northern Coast Ranges, Willow Creek Canyon 609 Comment
Read comments
Feb 27 2007
  HSC40999  Arnica discoidea J. O. Sawyer 1975-10-17 2709 Humboldt Along Big Hill Rd. 915 Comment
  UC1199250  Arnica discoidea Joseph P. Tracy 1919-5-31 5170 Humboldt near, at w side of Trinity River Willow Creek; Trinity River 182 Comment
  SEINET3098738  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt Trinity Summit. Fir woods near Corral Prairie 1520 Comment
  HSC102702  Arrhenatherum elatius J. P. Smith 2013-6-16 13730 Humboldt Along State Route 36, adjacent to the Dinsmore Airport. 735 Comment
  UCD56014  Arrhenatherum elatius Freed W. Hoffman 1946-5-19 1726 Humboldt North Coast Ranges. Mattole River. Comment
  JEPS36982  Artemisia douglasiana W. L. Jepson 1936-8-12 17886 Humboldt Philipsville South Fork Eel River, Philipsville Comment
  RSA424565B  Artemisia douglasiana Thomas S. Elias, Barbara A. Elias 1987-8-26 10628 Humboldt Fernbridge, 0.5 mile S of Route 101; along West bank of Eel River, about 0.5 mile N of bridge Comment
  UC198625  Artemisia douglasiana Joseph P. Tracy 1917-9-3 4856 Humboldt head of Redwood Creek (Janes Ranch) 914 Comment
  CAS-BOT-BC93860  Artemisia dracunculus A. A. Heller 1924-7-20 I 3865 Humboldt In sand along the Eel River at Phillipsville Comment
  HSC46965  Artemisia pycnocephala J. P. Smith, Thomas W. Nelson 1977-6-30 9216 Humboldt Samoa Peninsula just E of the drag strip. Comment
  UC164826  Artemisia pycnocephala J. P. Tracy 1909-7-18 3023 Humboldt opp. Eureka (sand hills of ocean beach); Samoa Comment
  RSA109296  Artemisia pycnocephala H. E. Parks, S. T. Parks 1952-06 24495 Humboldt Ocean sand dunes, Samoa Comment
  RSA34239  Artemisia suksdorfii C. B. Wolf 1927-8-29 1220 Humboldt Devils' Gate, S of Cape Mendocino Comment
  CAS-BOT-BC97242  Artemisia suksdorfii Carl B. Wolf 1937-9-9 9303 Humboldt Coast, 4 1/2 mi. So. of Cape Mendocino 6 Comment
  UC249826  Artemisia suksdorfii Joseph P. Tracy 1924-8-10 6812 Humboldt Blue Slide on Van Duzen River 91 Comment
  SEINET4343124  Artemisia tridentata subsp. wyomingensis Leila M. Shultz, John S. Shultz 1987-9-17 10750 Humboldt South of I-80, mile post 200 Comment
  HSC34272  Aruncus dioicus var. acuminatus K. Irwin 1975-8-13 Humboldt Grogans Hole Comment
  JEPS45626  Aruncus dioicus var. pubescens Joseph P. Tracy 1916-6-25 4749 Humboldt e of Trinidad (Redwood Creek); Northern Coast Ranges 152 Comment
  CHSC1538  Aruncus dioicus var. pubescens 1936-6-15 Humboldt This specimen collected at siltcoos Lake in Oregon. Comment
Read comments
Jan 8 2007
  SEINET201000  Asclepias cordifolia Joseph P. Tracy 1911-7-9 3477 Humboldt West side of Trinity River near Willow Creek. 183 Comment
  UC23011  Asclepias speciosa J. Burtt Davy 1899-6-24 5866 Humboldt Hoopa Valley, along the river North Coast Ranges Comment
  CAS-BOT-BC65946  Aspidotis densa Carl D. Duncan 1920-9-22 s.n. Humboldt Trinity River, Hoopa Valley Comment
  HSC102613  Aspidotis densa M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1600 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC1049  Aspidotis densa D. E. Anderson 1965-5-1 3582 Humboldt Along road to Bluff Creek campground, about 3 mi. from its junction with Hwy. 96 Comment
  HSC99110  Aspidotis densa Cara Witte 2008-6-13 715 Humboldt Forest Service Road 4N32. 1.4 miles north of intersection with Forest Service Road 4N32B. 1382 Comment
  HSC44408  Aspidotis densa R. York 1978-5-6 160 Humboldt Along Bluff Creek Rd., 4 mi. from Jct. with Hwy. 96 610 Comment
  UC302329  Aspidotis densa Charlotte M. Wilder 1912-10-1 Humboldt ca. 6 mi above Kuntz P.O. (Upper Van Duzen River) 914 Comment
  CDA18989  Aster brickellioides var. glabratus P. Haggard 2000-8-22 PDR 071957 Humboldt Along USFS Rd 1, southeast of Blue Lake. 0 Comment
  RSA18141  Aster chilensis C. B. Wolf 1927-8-22 808 Humboldt 1 mile south of Orick. Comment
  CAS-BOT-BC193132  Astragalus rattanii var. rattanii Volney Rattan 1884-1-1 s.n. Humboldt Headwaters Eel River Comment
  UC175639  Astragalus rattanii var. rattanii Joseph P. Tracy 1913-5-4 4051 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC495726  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
  RSA90753  Astragalus rattanii var. rattanii F. W. Peirson 1926-7-13 7058 Humboldt Near Blue Lake, Mad River. Comment
  RSA187393  Astragalus umbraticus Volney Rattan 1903-1 1878 Humboldt [no locality information provided] Comment
  UC1222420  Astragalus umbraticus Joseph P. Tracy 1940-8-25 16706 Humboldt at Lake Prairie , at Lake Prairie (Bald Mountain) 1066 Comment
  UC180213  Astragalus umbraticus Joseph P. Tracy 1914-7-5 4575 Humboldt between High Prairie and Snow Camp (Bald Mountain); Northern Coast Ranges, Bald Mt., betw High Prairie-Snow Camp 1219 Comment
  UCD105332  Astragalus umbraticus Joseph P. Tracy 1940-8-25 16706 Humboldt Bald Mountain; at 'Lake Prairie'. 1066 Comment
  HSC41197  Asyneuma prenanthoides Thomas W. Nelson, Jane P. Nelson 1977-7-1 3562 Humboldt Along N side of ridge between Bear and Blanket Creeks. 1494 Comment
  HSC57044  Asyneuma prenanthoides Overton, Butler 1979-7-24 9693 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UCD66898  Asyneuma prenanthoides Esther Perry 1930-7-11 Humboldt Humboldt State Park. Comment
  UCD136291  Athyrium filix-femina W. L. Jepson 1932-8-8 16529 Humboldt Weott (hill above). Comment
  RSA413349  Athyrium filix-femina subsp. cyclosorum R. Whittaker, W. A. Niering 1963-6-14 491 Humboldt Humboldt Redwoods, Weott Comment
  UC1239780  Athyrium filix-femina var. cyclosorum Joseph P. Tracy 1932-7-20 10743 1/2 Humboldt Trinity Summit; Klamath Mts 1371 Comment
  HSC72972  Athysanus pusillus Gail Newton 1980-6-24 601 Humboldt Near Ladder Rock 1570 Comment
  UC1198291  Athysanus pusillus Joseph P. Tracy 1922-5-14 6048 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC162643  Athysanus pusillus Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5350 Humboldt near Harris; North-Western California Comment
  UC1198294  Athysanus pusillus Joseph P. Tracy 1908-6 2939 Humboldt nw slope of Buck Mountain Buck Mountain; Northern Coast Ranges, Buck Mountain 1219 Comment
  UC1222661  Athysanus pusillus Joseph P. Tracy 1950-4-20 18610 Humboldt 1/2 mi w of Dinsmore's (along Van Duzen River, opposite Buck Mountain); Van Duzen River 762 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
  UC673040  Atriplex leucophylla Joseph P. Tracy 1928-7-25 8489 Humboldt Big Lagoon Big Lagoon (on sea-shore) 3 Comment
  HSC4339  Atriplex prostrata Larry Berti 1968-10-26 Humboldt Big Lagoon County Park, SW corner Comment
  CAS-BOT-BC146202  Avena barbata Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek near Orleans. Comment
  HSC47798  Avena barbata Michael A. Watkins 1978-6-10 4 Humboldt Arcata, E side of the 7th Street overpass to Hwy. 101 Comment
  UCD56463  Avena sativa Joseph P. Tracy 1951-5-26 19511 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  HSC66403  Baccharis douglasii Ruby Van Deventer 1960-8-15 Humboldt Myers Flat 122 Comment
  JEPS40681  Baccharis glutinosa W. L. Jepson 1932-8-1 16465 Humboldt Bull Creek 121 Comment
  CAS-BOT-BC98033  Baccharis pilularis Henry M. Pollard 1947-8-30 s.n. Humboldt North river - road near Redcap Creek, Orleans region 1 Comment
  RSA254757  Baccharis pilularis Thomas W. Nelson 1971-11-11 601 Humboldt Growing on the sand dunes at the foot of Murray Rd. McKinleyville Comment
  HSC100425  Baccharis pilularis Carl C. Marshall Feb 1887 391 Humboldt Hillsides near the coast. Comment
  CDA10381  Baccharis pilularis subsp. consanguinea T. C. Fuller 1961-9-27 7042 Humboldt Highway 101, 2.5 miles north of Trinidad. 0 Comment
  UC552309  Balsamorhiza deltoidea Joseph P. Tracy 1935-6-16 11282 Humboldt lower nw slope Buck Mountain 792 Comment
  POM52329  Balsamorhiza hookeri var. lagocephala Geo. D. Butler 1910-4-9 1157 Humboldt Dry hill near Eureka Comment
Read comments
Dec 1 2014
  CAS-BOT-BC145786  Beckmannia syzigachne Joseph P. Tracy 1928-6-24 8472 Humboldt Valley of South Yager Creek. 762 Comment
  CDA38657  Bellardia trixago B. Villegas/D. Juliano 2010-6-17 PDR# 1535021 -A Humboldt Alderpoint: Garberville - Alderpoint Rd. 0 Comment
  UC127824  Bellis perennis Harley P. Chandler May 1901 1128 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  CAS-BOT-BC48158  Bensoniella oregona R. Bacigalupi; L. Constance; Reid Moran; R. L. Rodriguez; Joe Tracy; Sherwin Carlquist 1951-6-14 3410 Humboldt Bald Mountain ridge - in bog, edge of forest at High Prairie, on long high ridge between Mad River and Redwood Creek 1066 Comment
  JEPS8437  Bensoniella oregona Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3410 Humboldt long high ridge between Mad River and Redwood Creek (Bald Mountain ridge) High Prairie; btw Mad River and Redwood Crk (Bald Mountain ridge), High Pr 1066 Comment
  HSC24379  Berberis aquifolium J. O. Sawyer 1970-6-24 2258 Humboldt S of Mill Creek Gap, FS 10N02 1433 Comment
  HSC31759  Berberis aquifolium Timothy B. Devine 1974-5-4 316 Humboldt Junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  HSC40854  Berberis aquifolium Thomas W. Nelson 1976-7-9 2995 Humboldt Along ridge S of E peak of Mtn. Lassic group, (Signal Pk.). 1707 Comment
  HSC74672  Berberis aquifolium Gail Newton 1981-5-16 2172 Humboldt Near Bug Creek. 1228 Comment
  UC774938  Berberis aquifolium var. aquifolium Carl B. Wolf 1937-8-13 9233 Humboldt 8 mi e Hoopa Valley (on new road towards Trinity summit) 1219 Comment
  HSC71607  Berberis aquifolium var. repens Gail Newton 1980-6-16 201 Humboldt Near Onion Mtn. 1280 Comment
  CAS-BOT-BC75687  Berberis nervosa Carl B. Wolf 1927-8-28 1179 Humboldt 13 miles above Blue Lake on the Lord Ellis Road. Comment
  HSC81928  Berberis nervosa Thomas W. Nelson, Jane Nelson 1979-7-3 4951 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  UC9754  Berberis nervosa Harley P. Chandler June, 1901 1286 Humboldt Hupa Indian Reservation; North Coast Ranges 1097 Comment
  CAS-BOT-BC75686  Berberis nervosa Volney Rattan 1879-1-1 s.n. Humboldt Phelps. Comment
  CAS-BOT-BC75811  Berberis pinnata Carl B. Wolf 1941-3-2 9989 Humboldt North Coast Ranges. Bull Creek-Petrolia Road. 0.25 mile south of Panther Gap. 548 Comment
  HSC97508  Berberis pinnata subsp. pinnata Cara Witte 2007-5-21 71 Humboldt Along National Forest 1. Approximately 1 mile north of White Oak Opening. 1267 Comment
  HSC95878  Blechnum spicant Will Ferrand 2002-2-2 20 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  JEPS59982  Blechnum spicant Lincoln Constance 1934-6-8 840 Humboldt S Fork Eel River Bull Creek Region Comment
  POM118334  Blechnum spicant Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC72946  Blechnum spicant M. Sacks 1977-4-8 4 Humboldt S end of Patrick's Point State Park 0.2 mi. W of Hwy. 101 and 5 mi. N of Trinidad 61 Comment
  UC1222706  Boechera pauciflora Joseph P. Tracy 1950-8-8 19293 Humboldt head of Croghan Hole Trinity Summit, Croghan Hole Comment
  HSC103082  Boechera sparsiflora Sydney Carothers 2014-7-3 21 Humboldt Six Rivers National Forest, summit of Mt. Lassic 1791 Comment
  HSC24555  Boschniakia hookeri Rudolf W. Becking 1972-6-30 720608 Humboldt Fish Lake area, Orleans 762 Comment
  HSC44612  Boschniakia hookeri R. York 1978-6-5 191 Humboldt Near Waterman Ridge Rd., 12 mi. from terminus with Hwy 299. Bulk collection #122 610 Comment
  HSC54891  Botrychium multifidum G. L. Clifton, Griswold 1979-7-25 10930 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC1239783  Botrychium multifidum Joseph P. Tracy 1912-7-22 3793 Humboldt Table Bluff Northern Coast Ranges 91 Comment
  HSC56152  Boykinia major G. L. Clifton, Griswold 1979-8-1 12008 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC20180  Boykinia occidentalis D. E. Anderson 1965-9-5 4095 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  CAS-BOT-BC420253  Boykinia occidentalis Roxana S. Ferris 1937-8-21 9390 Humboldt cliff above beach, Shelter Cove Comment
  UC726691  Boykinia occidentalis A. A. Heller 1937-6-12 15890 Humboldt 3 mi n Trinidad (at Bishop Pine Lodge); n of Trinidad Comment
  HSC37950  Brassica nigra Peter Sorensen 1976-6-16 Humboldt Woodley Island, Humboldt Bay Comment
  CAS-BOT-BC106286  Brickellia californica L. R. Abrams 1927-8-27 12049 Humboldt Rocky river bottom, Eel River, Richardson Grove Comment
  HSC104040  Briza maxima C. Reynolds 2015-4-12 36 Humboldt Just off footpath at southern parking lot of Kuchel Visitor Center 4 Comment
  HSC9086  Briza maxima R. D. Modafferi 1965-5-13 70 Humboldt Intersection of Main St. and old Hwy. 101, S of Trinidad Comment
  UCD57277  Briza maxima P. B. Kennedy 1929-6-13 s.n. Humboldt Etterburg. Comment
  HSC45594  Briza minor Diane L. Reed 1978-5-7 60 Humboldt 2 mi. up Friday Ridge Rd. from Hwy. 299 Comment
  SEINET4183111 Image available Briza minor Joseph P. Tracy 1912-6-9 3664 Humboldt Alton 30 Comment
  RSA114096  Brodiaea stellaris Rimo C. Bacigalupi, Lincoln Constance 1951-6-13 3406 Humboldt Along State Highway 36, five miles east of Bridgeville. Comment
  JEPS514  Brodiaea terrestris subsp. terrestris Joseph P. Tracy 1933-5-20 12249 Humboldt 1 mi. w. Petrolia; Northern Coast Ranges, Mattole Valley 91 Comment
  CAS-BOT-BC484613  Brodiaea terrestris subsp. terrestris Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  UC37672  Bromus carinatus var. carinatus J. Burtt Davy 1899-7-30 6179 Humboldt opposite Eureka (North Coast Ranges); North Coast Ranges Comment
  UCD60204  Bromus catharticus var. elatus A. H. Murphy 1947-8-19 s.n. Humboldt Fairground's exper. area. Fortuna. Comment
  HSC65109  Bromus diandrus J. P. Smith, Steve Selva 1970-6-14 3829 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  UC1103348  Bromus diandrus Joseph P. Tracy 1942-5-23 17087 Humboldt at Eureka Eureka 30 Comment
  UC187100  Bromus diandrus Joseph P. Tracy 1904-5-1 2042 Humboldt Northern Coast Region, at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC45109  Bromus diandrus R. Sutherland 1978-4-25 10 .25478 Humboldt 9 Comment
  UC1103366  Bromus hordeaceus Joseph P. Tracy 1919-5-31 5151 Humboldt near mouth of Willow Creek (Valley of Trinity River); Northern Coast Ranges 152 Comment
  UC1607840  Bromus hordeaceus H. E. Parks June 1935 4996 Humboldt Trinidad District, Egg Point Egg Point; Trinidad District, Egg Point Comment
  UC34106  Bromus hordeaceus Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5349 a Humboldt Bells Spring; North-Western California, Bells Spring Comment
  UC552680  Bromus hordeaceus Joseph P. Tracy 1935-5-25 13867 Humboldt Fort Seward 106 Comment
  UC1541517  Bromus laevipes Harold E. Parks 1934-6-3 4953 Humboldt 2 mi w of Bridgeville 152 Comment
  CAS-BOT-BC161534  Bromus tectorum Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek near Orleans. Comment
  HSC70780  Bromus tectorum R. York 1980-5-17 546 Humboldt Near Le Perron Peak 1066 Comment
  HSC73757  Bromus tectorum Gail Newton 1980-7-11 1326 Humboldt Near Red Mtn. 1341 Comment
  UC526730  Bromus tectorum Joseph P. Tracy 1925-5-30 7039 Humboldt Northern Coast Ranges, Larrabee Valley Larrabee Valley; Northern Coast Ranges, Larrabee Valley 701 Comment
  UC1145161  Bromus vulgaris Joseph P. Tracy 1937-7-25 15540 Humboldt Trintiy Summit, head of Little Hors-Linto Creek Little Hors-Linto Creek; Trintiy Summit, Little Hors-Linto Creek 1371 Comment
  POM312414  Cakile edentula Malcolm A. Nobs, Walter Wisura 1949-8-11 1337 Humboldt Eastern shore of Stone Lagoon. Comment
  CHSC13868  Cakile maritima Tim Manolis 1974-3-16 27 Humboldt On south spit of Humboldt Bay, 5 mi. SW of Eureka. Comment
  BLMAR27  Calamagrostis nutkaensis Brad Barr June, 1982 27 Humboldt King range, on edge of high bench above light house Comment
  CHSC100698  Callitriche heterophylla var. bolanderi Robert F. Thorne; P. Everett 2007-6-13 35345 Humboldt Along Hwy. 101 about 3 mi. N of Eureka; in shallow water ca. 1 ft. deep of ditch along roadside. 1 Comment
  UC183600  Callitriche heterophylla var. bolanderi Joseph P. Tracy 1913-4-13 4038 Humboldt Ryan's Slough Northern Coast Region, Humboldt Bay Region (on Arcata road) 0 Comment
  HSC62669  Callitriche stagnalis Michelle Stevens 1979-5-18 115 Humboldt By Bayside Grange at 2297 Jacoby Rd., Bayside. 0 Comment
  HSC62829  Callitriche stagnalis J. M. DiTomaso 1979-5-29 1080 Humboldt Arcata Bottoms, 1.7 mi. W of Alliance Rd. on Lanphere Rd. Comment
  UC275510  Calocedrus decurrens Joseph P. Tracy 1924-8-31 6847 Humboldt Klamath River at Bluff Creek Northern Coast Ranges, Klamath River, Bluff Creek 91 Comment
  SEINET4169782  Calochortus catalinae Unknown 1930-7-6 Humboldt Kneeland Praire 762 Comment
  UC14999  Calochortus tolmiei Mrs. M. H. Manning Apr 1901 10 Humboldt near Hupa Comment
  HSC26870  Calochortus tolmiei Clifton Raymond Chesbrough 1973-6-19 94 Humboldt 0.5 mi. N of College Cove along coast Comment
  CAS-BOT-BC175761  Caltha leptosepala Joseph P. Tracy 1930-7-16 8971 Humboldt South Fork Mountain; at McKay Camp 1676 Comment
  HSC100613  Caltha leptosepala Carl C. Marshall Jul 1886 333 Humboldt Trinity summit and S. Fork Mtn. Comment
  HSC102008  Caltha leptosepala M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 909 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC38744  Calypso bulbosa M. Mesler, K. Mesler, J. D. Ackerman 1976-4-25 752 Humboldt Hwy. 36, E of Bridgeville, near tip of ridge W of Dinsmore Comment
  RSA381906  Calypso bulbosa Grinnell 1917-6-6 s.n. Humboldt Hoopa Indian Reservation Comment
  HSC55179  Calyptridium monospermum Gilbert Muth 1979-8-1 12189 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  HSC104033  Calystegia soldanella E. R. Fyer 2015-4-26 24 Humboldt Along New Navy Base Road 9 Comment
  HSC6365  Calystegia soldanella R. E. Hafenfeld 1965-5-9 58 Humboldt Near mouth of Ossagon Cr. on Gold Bluff Beach Comment
  RSA71112  Calystegia soldanella F. W. Peirson 1923-7-11 3805 Humboldt 18 miles north of Eureka Comment
  HSC18855  Calystegia soldanella P. F. Yull 1966-5-5 144 Humboldt 1 mi. S of Fairhaven Comment
  HSC90315  Calystegia soldanella Jean Hanson 1980-5-24 79 Humboldt Indian (Gunther) Island, in Humboldt Bay, city of Eureka. W end of island, 25 ft. from high tide line Comment
  CHSC40211  Camassia quamash subsp. quamash L. P. Janeway 1984-5-13 778 Humboldt Along the Kneeland/Bridgeville Road ca 19 mi east of the Kneeland post office and 1 mi south of N Fk Yager Creek. 640 Comment
  UC144059  Camissonia contorta Joseph P. Tracy 1908-6 2687 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  POM232035  Campanula prenanthoides I. L. Wiggins 1930-7-22 4690 Humboldt Along bank of Redwood Creek btwn Blue Lake and Willow Creek. Comment
  UC890509  Campanula prenanthoides Ira L. Wiggins 1930-7-22 4690 Humboldt along bank of Redwood Creek between Blue Lake and Willow Creek; Redwood Creek Comment
  RSA21317  Campanula prenanthoides C. B. Wolf 1937-8-13 9215 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  SEINET10462986  Campanula prenanthoides Ira L. Wiggins 1930-7-22 Wiggins 4690 Humboldt Along bank of Redwood Creek between Blue Lake and Willow Creek Comment
  SEINET10462988  Campanula prenanthoides Van Dke 1931-6-30 VAN DYKE s.n. Humboldt Willow Creek Comment
  SEINET10463063  Campanula prenanthoides Van Dke 1931-6-30 VAN DYKE s.n. Humboldt WILLOW CREEK Comment
  SEINET10463252  Campanula prenanthoides Tucker 1948-9-3 TUCKER 1859 Humboldt Road bank, Friday Ridge Road, just below Black Rock (junction of Friday Ridge Road and the Horse Mountain-Grouse Mountain road) Comment
  SEINET10905929  Campanula prenanthoides Perry 1930-7-11 Perry s.n. Humboldt HUMBOLDT STATE PARK Comment
  SEINET10972391  Campanula prenanthoides Pollard 1948-8-4 POLLARD s.n. Humboldt Orleans Mountain Trail 1219 Comment
  SEINET10463746  Campanula scouleri Newton 1981-7-23 Newton 2280 Humboldt Pilot Creek quadrangle; near Bug Creek Butte, streamside. 1350 Comment
  JEPS11743  Campanula scouleri Milo S. Baker 1923-7-20 52 Humboldt road from Redwood House to Yager 609 Comment
  SEINET10463748  Campanula scouleri Rattan 1883-6-30 RATTAN s.n. Humboldt Between Redwood Creek and Mad River Comment
  SEINET10463754  Campanula scouleri Baker 1979-6-29 Baker 956 Humboldt Hopkin's Creek. T9N R5E Sec.3 760 Comment
  HSC45593  Cardamine californica Diane L. Reed 1978-4-22 38 Humboldt Trinidad Head Comment
  UC1199188  Cardamine californica Joseph P. Tracy 1918-4-21 4878 Humboldt on road to Kneeland Prairie (around Humboldt Bay); Northern Coast Ranges, around Humboldt Bay 152 Comment
  UC162351  Cardamine californica Joseph P. Tracy 1905-4-2 2159 Humboldt near Blue Lake; Northern Coast Ranges, near Blue Lake 30 Comment
  HSC104453  Cardamine oligosperma Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 5 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC6639  Cardamine oligosperma S. J. Hawks 1965-3-12 4 Humboldt 0.5 mi. W of Fairhaven Comment
  HSC89611  Cardamine oligosperma M. Roantree 1985-5-24 66 Humboldt E side of Trinidad Head Comment
  UC161023  Cardionema ramosissimum Joseph P. Tracy 1909-7-18 3018 Humboldt Ocean Beach at Humboldt Bay; Northern Coast Region, , Ocean Beach Comment
  HSC5227  Carduus tenuiflorus W. D. Stevens 1967-7-22 56 Humboldt Above the dirt road from old Hwy. 101 to the top of the N bank of the Mad River Comment
  CAS-BOT-BC18519  Carex abrupta Joseph Prince Tracy 1937-7-29 15580 Humboldt South Fork Mountains. McKay Camp. 1676 Comment
  UC562440  Carex amplifolia Joseph P. Tracy 1935-6-23 13986 Humboldt French Camp Ridge 1066 Comment
  UC1152063  Carex angustata Joseph P. Tracy 1950-7-6 18988 Humboldt lower end of Burr Valley on nw slope of Buck Mountain Burr Valley, Buck Mountain 1066 Comment
  JEPS25970  Carex arcta Joseph P. Tracy 1934-7-13 13389 Humboldt Dow's Prairie. Comment
  UC562313  Carex barbarae Joseph P. Tracy 1934-8-14 13587 Humboldt South Fork of Eel River, between Miranda and Redway 91 Comment
  BLMAR357  Carex cusickii Jennifer Anthony-Wheeler 2003-7-23 357 Humboldt Headwaters Forest Reserve, growing in natural pond with large floating rafts of logs 426 Comment
  CAS-BOT-BC19964  Carex exsiccata Joseph Prince Tracy 1934-7-13 13388 Humboldt Dow's Prairie. 60 Comment
  SEINET7558591 Image available Carex feta Andrew L. Hipp 1999-5-31 457 Humboldt Alder Point, Alder Pt Rd ca 5 mi W of Alder Pt. Comment
  UC194816  Carex feta Joseph P. Tracy 1908-7-22 2906 Humboldt opposite Buck Mountain (near top of ridge between Van Duzen and Mad River); Northern Coast Ranges, Dinsmore's Ranch 1066 Comment
  HSC98786  Carex fracta Cara Witte 2007-7-11 489 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  CHSC45238  Carex geyeri L. P. Janeway 1984-6-17 848 Humboldt Titlow Hill Rd at turn to Horse Mtn. 1420 Comment
  CAS-BOT-BC20877  Carex globosa Harold Ernest Parks; Joseph Prince Tracy 1942-5-16 11556 Humboldt Vicinity of Garberville. 152 Comment
  CAS-BOT-BC20876  Carex globosa Joseph Prince Tracy 1927-7-4 8242 Humboldt North Coast Ranges. Blue Slide, on Van Duzen River. 91 Comment
  UC303145  Carex globosa Joseph P. Tracy 1925-6-7 7064 Humboldt East Fork of Willow Creek Northern Coast Ranges, Willow Creek Canyon 457 Comment
  CAS-BOT-BC146605  Carex gynodynama Alice Eastwood; John Thomas Howell 1937-6-23 4841 Humboldt 8 miles from Kneeland on road to Yager Comment
  JEPS25973  Carex harfordii Joseph P. Tracy 1935-6-8 13938 Humboldt Northern Coast Ranges, Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  UC1103098  Carex harfordii Joseph P. Tracy 1935-6-8 13939 Humboldt at Eureka Northern Coast Ranges 0 Comment
  CAS-BOT-BC21752  Carex hassei Joseph Prince Tracy 1927-6-17 8170 Humboldt Big Lagoon. 6 Comment
  CAS-BOT-BC21018  Carex hendersonii C. V. Piper 1921-5-22 s.n. Humboldt Eureka. Comment
  CHSC43908  Carex hendersonii L. P. Janeway 1984-5-27 836 Humboldt Ca 1 mi east of Redway, along Redwood Cr. 91 Comment
  RSA15489  Carex hendersonii Joseph P. Tracy 1933-5-28 12415 Humboldt Carlotta. 61 Comment
  UC1103592  Carex hendersonii J. P. Tracy 1899-4-30 312 Humboldt immediate vicinity Eureka 0 Comment
  UC249765  Carex hendersonii Joseph P. Tracy 1923-6-20 6331 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  RSA22113  Carex hoodii Joseph P. Tracy 1937-6-27 15377 Humboldt South Fork of Trinity River, mountain slopes west of its mouth. Comment
  CAS-BOT-BC35564  Carex jonesii Joseph Prince Tracy 1935-7-26 14257 Humboldt Trinity Summit, Meadows at Water Dog Lakes 1828 Comment
  UC562283  Carex laeviculmis Joseph P. Tracy 1929-7-4 8607 Humboldt French Camp Ranch Northern Coast Ranges 1066 Comment
  CAS-BOT-BC28505  Carex lenticularis var. limnophila Carl B. Wolf 1927-8-22 788 Humboldt Big Lagoon Comment
  CAS-BOT-BC21120  Carex leptalea Joseph Prince Tracy 1918-7-21 5086 Humboldt Northern Coast Range. Humboldt Hill. 91 Comment
  CAS-BOT-BC21121  Carex leptalea Joseph Prince Tracy 1918-7-21 5086 Humboldt Northern Coast Range. Humboldt Hill. 91 Comment
  CAS-BOT-BC31465  Carex leptopoda Joseph Prince Tracy 1936-6-9 14902 Humboldt Mattole Valley, 4 mi SE of Petrolia. 60 Comment
  HSC44035  Carex leptopoda Thomas W. Nelson, Jane P. Nelson 1977-7-1 3580 Humboldt Along road, N from Alder Springs 1463 Comment
  HSC82622  Carex mendocinensis Thomas W. Nelson 1977-6-15 3447 Humboldt Along old road to ski area 1372 Comment
  HSC45432  Carex multicostata Thomas W. Nelson, Jane P. Nelson 1978-7-2 4393 Humboldt SE of E peak of the Mount Lassic group 1616 Comment
  SEINET3904281  Carex multicostata D. H. Norris 1971-7-17 19597 Humboldt Moist meadow at intersection of Kneeland-Bridgeville road and Redwood House Rd.; 0 Comment
  CAS-BOT-BC119718  Carex nervina Joseph Prince Tracy 1932-7-16 10627 Humboldt Trinity Summit, Fir woods near Corral Prairie. 1584 Comment
  UCR40087  Carex nudata L. P. Janeway 1983-7-23 435 Humboldt Blue Lake Q., North Fork of Mad River at the old Hwy 299 bridge (near the new bridge). 40 Comment
  UCR45817  Carex nudata L. P. Janeway 1983-7-23 439 Humboldt Forks of Salmon Q., East side of Klamath River at Ike's Falls River Access, c. 5 mi north of Orleans. 147 Comment
  SEINET10711630  Carex nudata A. Arthur Heller 1923-7-10 Heller 13795 Humboldt Wet soil along the Eel River between Scotia and Pepperwood in the redwood belt. Comment
  CHSC23307  Carex obnupta Robert F. Thorne; P. Everett 1965-8-7 35199 Humboldt Big Lagoon; at edge of bog at S end of lagoon. 1 Comment
  HSC7065  Carex obnupta D. B. Bader 1963-3-29 35 Humboldt Second of Clam Beach Lagoons, W of Hwy. 101 Comment
  UC1103606  Carex obnupta J. P. Tracy 1899-5-24 319 Humboldt immediate vicinity Eureka 0 Comment
  HSC7067  Carex obnupta Francis Winter 1960-4-23 Humboldt 1 mi. S of Simpson Creek, Korbel-Maple Creek Rd. 213 Comment
  HSC76819  Carex obnupta L. P. Janeway 1982-8-7 112 Humboldt Along Prairie Creek, ~5 mi. N of Prairie Creek Campground along Hwy. 101 183 Comment
  RSA88853  Carex ovalis Alice Eastwood, John Thomas Howell 1937-6-23 4790 Humboldt Near Dinsmore s. Comment
  UC1103095  Carex pachystachya Joseph P. Tracy 1934-7-12 13374 Humboldt e Big Lagoon 3 Comment
  CHSC42978  Carex pansa L. P. Janeway 1987-7-31 2537 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  HSC49246  Carex pansa Rudolf W. Becking 1979-3-25 Humboldt U.S. Coast Guard Station along N Spit Humboldt Bay, Fairhaven Comment
  SEINET2144409  Carex rostrata Unknown 1924-7-4 6706 Humboldt Snow Camp. 1370 Comment
  RSA794382  Carex subbracteata P. F. Zika 2011-7-3 25493 Humboldt Titlow Hill Road, 3 road miles southeast of Route 299 at Berry Summit, 1 air km southwest of Horse Mountain. Outer North Coast Ranges. 1190 Comment
  UC562655  Carex subbracteata Joseph P. Tracy 1935-5-24 13811 Humboldt Eureka Northern Coast Ranges 0 Comment
  CAS-BOT-BC116940  Carex subbracteata Joseph Prince Tracy 1936-6-9 14904 Humboldt Upper Matole. 121 Comment
  CAS-BOT-BC116677  Carex subfusca Joseph Prince Tracy 1935-7-27 14296 Humboldt Open places at McKay Prairie, along creek in meadow. 1584 Comment
  CAS-BOT-BC116679  Carex subfusca Joseph Prince Tracy 1928-6-24 8470 Humboldt Valley of south Yager Creek in wet meadow. 762 Comment
  CAS-BOT-BC115576  Carex tumulicola Joseph Prince Tracy 1912-7-26 3835 Humboldt Kneeland Prairie. 762 Comment
  CAS-BOT-BC115566  Carex tumulicola Henry M. Pollard 1945-8-26 s.n. Humboldt Road to old mine N of Orleans, Klamath River Canyon. Comment
  RSA152530  Carex unilateralis Joseph P. Tracy 1946-5-30 17539 Humboldt Wet gully in grassland near Bridgeville. 457 Comment
  UC1115821  Carex unilateralis Joseph P. Tracy 1938-7-5 16007 Humboldt old Strong's District School House, 5 miles E of town 45 Comment
  HSC45970  Carex vesicaria J. P. Smith, Steve Selva 1970-6-30 4133 Humboldt Comment
  HSC79490  Carpobrotus chilensis Kenneth Clark 1980-4-18 574 Humboldt On lowest alluvial terrace of Dead's Man Gulch. 3 Comment
  HSC91590  Carpobrotus chilensis E. Mackey 1987-2-5 Humboldt Patrick's Point State Park, area next to Wedding Rock. Comment
  UCD129945  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt Luke's Prairie, on ridge 1 m. north above Bull Creek, ca. 2 miles west of Dyerville. Comment
  JEPS83  Castilleja affinis subsp. affinis Lincoln Constance 1934-3-29 715 b Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  UC1196741  Castilleja affinis subsp. affinis Joseph P. Tracy 1942-7-1 17366 Humboldt opposite Buck Mountain (Dinsmore's, along Van Duzen River); Van Duzen River 762 Comment
  HSC45089  Castilleja affinis subsp. litoralis R. Sutherland 1978-4-25 11 Humboldt Bluff at Shelter Cove. 27 Comment
  JEPS3694  Castilleja affinis subsp. litoralis L. R. Heckard and P. C. Silva 1952-5-10 271 Humboldt just s Humboldt Bay; Table Bluff Comment
  UC146237  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1900-7-4 867 Humboldt Samoa; North Coast Region, Humboldt Bay Region 0 Comment
  JEPS3825  Castilleja applegatei subsp. martinii Joseph P. Tracy 1938-5-1 15732 Humboldt Willow Creek Trinity River Valley 152 Comment
  JEPS8683  Castilleja applegatei subsp. martinii Joseph P. Tracy 1927-5-14 8001 Humboldt near South Fork; Trinity River Valley 182 Comment
  HSC56074  Castilleja arachnoidea G. L. Clifton, Griswold 1979-7-31 11750 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC63879  Castilleja arachnoidea M. A. Baker 1979-6-27 928 Humboldt E of Oregon Creek Comment
  POM87960  Castilleja litoralis L. R. Abrams, R. C. Bacigalupi 1922-06 8290 Humboldt North of Big Lagoon. Comment
  RSA167244  Castilleja litoralis Joseph P. Tracy 1950-6-8 18749 Humboldt Bear River Ridge, south slope near Capetown. Cape Ridge. One mile east of Cape Mendocino. 152 Comment
  RSA516622  Castilleja litoralis R. C. Bacigalupi, G. Thomas Robbins, C. L. Custer 1954-8-11 4758 Humboldt 1.2 miles south of Trinidad. Comment
  HSC56431  Castilleja miniata Griswold, Butler 1979-7-12 7139 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC41774  Castilleja miniata Chesnut and Drew Aug 1888 Humboldt Grouse Creek Comment
  UC1196744  Castilleja pruinosa Joseph P. Tracy 1912-7-26 3862 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC26418  Castilleja pruinosa Harley P. Chandler Jun 1901 1485 Humboldt Klamath River; North Coast Ranges 426 Comment
  HSC98020  Castilleja pruinosa Cara Witte 2007-7-11 513 Humboldt National Forest 1. Approximately 1 mile south of intersection with 5N01. Near Spike Buck Mountain. 1591 Comment
  UC1222828  Castilleja pruinosa Joseph P. Tracy 1950-7-2 18978 Humboldt below Grizzly Camp (at crossing of Little Hors Linto Creek); Little Hors Linto Creek Comment
  UC1502104  Ceanothus R. Sutherland 1975-7-4 7 .4.7 75 Humboldt Pt. Delgada Quad. 518 Comment
  UC1502112  Ceanothus R. Sutherland 1976-1-30 4 .30.76 Humboldt Pt. Delgada Quad. 990 Comment
  CAS-BOT-BC48531  Ceanothus cordulatus Doris K. Kildale 1926-9-5 2613 Humboldt Lasseck's Peaks 1661 Comment
  UC1198032  Ceanothus cordulatus Joseph P. Tracy 1935-7-14 14092 Humboldt near Clear Lake (ridge); Northern Coast Ranges 1524 Comment
  UCD111746  Ceanothus cuneatus Roman Gankin; W. R. Hildreth 1966-3-15 698 Humboldt State Highway 96, 8.4 miles north of Hoopa. Comment
  BLMAR199  Ceanothus incanus Donald Hazlett 1994-6-7 199 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC50055  Ceanothus incanus W. R. Dudley 1899-6-20 s.n. Humboldt Near Eel River in woods Comment
  HSC37607  Ceanothus oliganthus var. sorediatus R. Sutherland 1975-7-11 10 .11775 Humboldt Along county rd. 244 Comment
  UC203857  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1918-7-3 4986 Humboldt Wilder Ridge Northern Coast Ranges 457 Comment
  JEPS42371  Ceanothus parryi W. L. Jepson 1902-6-20 1906 Humboldt s Camp Grant (Hubbard's Station) 243 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
  RSA89807  Ceanothus parryi P. A. Munz 1954-7-26 19884 Humboldt Humboldt County:S of Richardson Grove at Humboldt Mendocino County line Comment
  UC1052837  Ceanothus parryi W. L. Colwell 1955-6-7 27 Humboldt Tree miles west of Weott, one half mile norht of Grasshopper Mountain lookout 914 Comment
  CAS-BOT-BC52043  Ceanothus prostratus Joseph P. Tracy 1927-5-15 8056 Humboldt Hoopa Mountain. On road West from Hoopa Valley, in open forest of yellow and sugar pines 914 Comment
  HSC43226  Ceanothus pumilus R. Sutherland 1976-4-17 6 .17476 Humboldt 549 Comment
  RSA46916  Ceanothus pumilus Doris K. Kildale 1926-4-25 1811 Humboldt Hoopa Mt. 793 Comment
  SEINET201060  Ceanothus pumilus J. P. Tracy 1946-5-4 17526 Humboldt Willow Creek Canyon along Trinity Highway 610 Comment
  UC170018  Ceanothus pumilus Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5647 Humboldt Hoopa Mountain North Coast Ranges, Hoopa Mountain Comment
  CAS-BOT-BC52220  Ceanothus thyrsiflorus Doris K. Kildale 1926-3-20 1553 Humboldt Big Lagoon Comment
  HSC79361  Ceanothus thyrsiflorus Kenneth Clark 1980-6-14 684 Humboldt Above N Fork of Dead Man's Gulch 213 Comment
  UC1071395  Ceanothus thyrsiflorus G. T. Nordstrom Jul 1934 1426 Humboldt 1 mi nne Orick; Orick Quad. 3 Comment
  UCD112726  Ceanothus thyrsiflorus J. E. Street 1950-5-28 s.n. Humboldt Eureka. Comment
  CDA35679  Ceanothus velutinus Gordon Leppig 1998-6-1 876 Humboldt Horse Mountain. Buck Flat, Titlow Hill Road at Ammon Ridge Road. Comment
  SEINET12211103  Ceanothus velutinus F. H. Utech 1986-1 86 -383 Humboldt 0.5 mi NNW on Kings Peak Road (Humboldt County C4A) from junction with Shelter Cove Road 600 Comment
  HSC74217  Ceanothus velutinus var. velutinus M. A. Baker 1980-7-23 3177 Humboldt Near Orleans Mtn. 1859 Comment
  CAS-BOT-BC272108  Centaurea cyanus Henry M. Pollard 1948-7-24 s.n. Humboldt Near Orleans Comment
  CDA20058  Centaurea diffusa R. Spadoni, Green 2002-10-9 PDR P 070865 Humboldt Northwestern California; Wasteground near old log pond at Pacific Lumber Co, Scotia. 0 Comment
  CDA7312  Centaurea pratensis T. C. Fuller 1961-9-28 7046 Humboldt Opposite 2827 Hubbard Lane, one half block west of Harris Street at Redwood Acres Park. 0 Comment
  UC1225826  Centaurium erythraea Joseph P. Tracy 1948-9-26 18236 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  JEPS46932  Centaurium muehlenbergii Joseph P. Tracy 1934-7-9 13347 Humboldt Dobbyn Creek 152 Comment
  UC1198612  Centunculus minimus Joseph P. Tracy 1930-6-15 8747 Humboldt near Bosworth's (Northern Coast Ranges, Larrabee Creek); Northern Coast Ranges, Larrabee Creek 457 Comment
  JEPS64313  Cephalanthera austiniae W. L. Jepson 1902-7-14 2027 Humboldt Mud Spring to Summit Trinity Summit 1219 Comment
  CAS-BOT-BC384902  Cerastium arvense W. C. Blasdale 1896-5-31 s.n. Humboldt Eureka Comment
  SBBG1996  Cerastium arvense H. and M. Dearing 1933-5-17 239 Humboldt N of Arcata Comment
  HSC98768  Cerastium fontanum subsp. vulgare Cara Witte 2007-8-8 621 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1547 Comment
  HSC98809  Cerastium fontanum subsp. vulgare Cara Witte 2008-8-5 986 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1569 Comment
  HSC39837  Cerastium glomeratum Peter Sorensen 1976-6-12 Humboldt Woodley Island, Humboldt Bay Comment
  UC1198315  Cerastium glomeratum Joseph P. Tracy 1913-6-14 4123 Humboldt opposite Buck Mt. (Dinsmore's Ranch); Northern Coast Ranges, Van Duzen R. Valley, Dinsmore's Ranch 762 Comment
  UCSB1850  Cerastium glomeratum Parks, H.; Parks, S. 1944-04 Humboldt Spruce Cove, Trinidad 60 Comment
  HSC89604  Cerastium glomeratum M. Roantree 1985-4-25 10 Humboldt E side of Trinidad Head. Comment
  HSC95646  Cerastium glomeratum Andrea Pickart 2002-4-3 33 Humboldt Samoa Dunes, Eureka airport, 'Superbowl 15 Comment
  SEINET6904629  Cerastium glomeratum Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, about 4 miles southeast of Kneeland. Comment
  HSC100514  Cercis occidentalis Carl C. Marshall Apr 1887 384 Humboldt Hoopa Valley. Comment
  CAS-BOT-BC85651  Chamaecyparis lawsoniana Thomas Nelson 1977-10-20 3758 Humboldt Mixed evergreen forest above junction of Maple Creek and Kneeland roads. 853 Comment
  SEINET200309  Chamaecyparis lawsoniana Joseph P. Tracy 1926-6-27 7672 Humboldt Horse Mountain 1463 Comment
  HSC8035  Chamaesyce maculata D. E. Anderson 1963-9-21 2840 Humboldt 0.5 mi E of Willow Creek Comment
  UC535755  Chamaesyce serpyllifolia Eleanor Armstrong 1934-8-6 1126 Humboldt Richardson Grove 121 Comment
  UC1197021  Chamerion angustifolium subsp. circumvagum Mrs. Laura P. Mahan 1928-6-24 Humboldt 3 mi se Scotia; Eel River 30 Comment
  HSC55159  Cheilanthes gracillima Gilbert Muth 1979-8-1 12120 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC74745  Cheilanthes gracillima Gail Newton 1981-8-7 2426 Humboldt Near Bug Creek Butte 1244 Comment
  CDA3059  Chenopodium ambrosioides B. F. Kemp 1957-11-8 511 -57 Humboldt Orrick. 0 Comment
  JEPS59742  Chenopodium botrys W. L. Jepson 1936-8-12 17885 Humboldt Philipsville South Fork Eel River Comment
  RSA246908  Chenopodium botrys R. F. Thorne, P. Everett 1965-8-8 35263 b Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  UCD98340  Chenopodium murale Joseph P. Tracy 1948-1-11 17949 Humboldt Eureka. 30 Comment
  RSA12553  Chimaphila menziesii C. B. Wolf 1934-7-2 5886 Humboldt Snow Camp. Mountains east of Korbel. 1372 Comment
  HSC40968  Chimaphila umbellata Linda M. Barker 1976-6-14 1597 Humboldt 3 mi. W of Arcata, Lanphere-Christensen Dunes Comment
  UC314637  Chimaphila umbellata Joseph P. Tracy 1926-8-29 7777 Humboldt sand dunes near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  CAS-BOT-BC497672  Chlorogalum pomeridianum L. R. Abrams 1918-6-16 7191 Humboldt Willow Creek Comment
  UCSB34195  Chloropyron maritimum subsp. palustre Kearns, Dennis 1979-8-24 Humboldt Spring Tide area of Arcata Bay, on edge of South end of "I" Street near the Arcata Boat Launching Facility Comment
  CAS-BOT-BC36484  Chrysolepis chrysophylla Doris K. Kildale 1927-2-22 2978 Humboldt Kneeland Prairie junction of old road Comment
  UC1141460  Chrysosplenium glechomifolium Harold E. Parks Feb 1939 5267 Humboldt 2 mi n Trinidad (along McNeil's Creek); McNeil's Creek Comment
  CAS-BOT-BC420346  Chrysosplenium glechomifolium V. Rattan 1879-6-1 27 Humboldt Long Prarie Creek Comment
  UCD130477  Cichorium intybus Lincoln Constance 1934-6-25 933 Humboldt Bull Creek Region, South Fork Eel River, on east side of the road at Englewood across the road from Collins' Englewood Campground. Comment
  JEPS156  Cicuta douglasii W. L. Jepson 1936-8-17 17930 Humboldt near Arcata (s of Salmon Creek, Mad River); Mad River Comment
  HSC74438  Circaea alpina subsp. pacifica Gail Newton 1980-8-10 2069 Humboldt Near Blake Mtn. 1707 Comment
  UC1103564  Circaea alpina subsp. pacifica Joseph P. Tracy 1906-5-6 2441 Humboldt near Hydesville (Wolverton Gulch); Northern Coast Region, Wolverton Gulch 60 Comment
  UC166540  Cirsium brevistylum J. P. Tracy 1903-8-9 1935 Humboldt immediate vicinity of Eureke; Eureka 0 Comment
  SEINET3442935  Cirsium cymosum T. H. Haig 1960-6-16 Humboldt Kneeland, Kneeland Comment
  UCD130610  Cirsium douglasii Gordon Leppig 1998-6-1 879 Humboldt Horse Mountain, Titlow Hill Rd. 1219 Comment
  JEPS30422  Cirsium douglasii var. douglasii Peter H. Raven with R. Snow 1958-7-20 13647 Humboldt 3.8 mi s U.S. Highway 299 (along Titlow Hill Road) Comment
  JEPS59211  Cirsium occidentale var. venustum Lincoln Constance 1934-5-29 724 Humboldt near jctn South Fork of Eel River (Upper look prairie); Bull Creek Region, South Fork of Eel River, Upper Look Prai 365 Comment
  JEPS59312  Cirsium vulgare W. L. Jepson 1936-8-12 17890 Humboldt Philipsville South Fork Eel River, Philipsville Comment
  HSC91920  Cirsium vulgare E. Mackey 1986-10-7 Humboldt Patrick's Point State Park, near old road in dune area Comment
  RSA791717  Clarkia Robert F. Thorne, P. Everett 1965-8-5 35152 Humboldt Samoa Dunes. 3 Comment
  UCR123961  Clarkia affinis 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
  CAS-BOT-BC160954  Clarkia amoena subsp. amoena Doris K. Kildale 1928-6-17 5233 Humboldt Miranda, south fork of Eel River Comment
  UC668237  Clarkia amoena subsp. amoena Joseph P. Tracy 1938-6-17 15957 Humboldt s of point Cape Mendocino (near ocean shore) 3 Comment
  UC562522  Clarkia concinna subsp. concinna Joseph P. Tracy 1936-6-10 14927 Humboldt mountain slopes w of mouth South Fork Trinity River 457 Comment
  UC58846  Clarkia gracilis subsp. gracilis Harley P. Chandler June, 1901 1327 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC38312  Clarkia purpurea Peter Sorensen 1976-6-14 Humboldt N Spit Comment
  SEINET12189257  Clarkia purpurea J. P. Tracy 1950-1 18809 Humboldt Fort Seward Ranch Comment
  UC1196977  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1938-7-4 15984 Humboldt Valley of South Yager Creek 762 Comment
  CAS-BOT-BC172508  Clarkia purpurea subsp. quadrivulnera C. C. Harris; S. K. Harris; J. P. Tracy 1942-6-22 1261 Humboldt In a field, 7 miles north and 5 miles east of Willow Creek 165 Comment
  UC1196979  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1918-7-28 5091 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  UC1196984  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1898-7-13 256 Humboldt near Hydesville; Northern Coast Ranges, Yager Creek Bar 60 Comment
  UC144095  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy July, 1908 2762 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges 914 Comment
  UC314618  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1923-7-4 6527 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  CAS-BOT-BC172389  Clarkia purpurea subsp. viminea Doris K. Kildale 1927-6-25 3584 Humboldt Near Ettersburg Comment
  JEPS43563  Clarkia purpurea subsp. viminea W. L. Jepson 1902-7-4 1982 Humboldt beneath The Maul Oaks; Hupa Valley Comment
  UC668286  Clarkia rhomboidea Joseph P. Tracy 1937-7-24 15527 Humboldt 2 mi se Devil's Hole; Trinity Summit 1524 Comment
  SEINET200315  Claytonia exigua subsp. exigua J. P. Tracy 1926-4-3 7396 Humboldt Kneeland Prairie local Comment
  UC161024  Claytonia parviflora subsp. parviflora Joseph P. Tracy 1911-6-4 3211 Humboldt 5 mi from coast Little River (along Little River); Northern Coast Region 121 Comment
  UC902106  Claytonia perfoliata subsp. intermontana Joseph P. Tracy 1949-6-6 18306 Humboldt ne of Hawkins Bar (Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC95726  Claytonia perfoliata subsp. perfoliata Steven Lee 2004-3-17 2 Humboldt S Fork Rd. from Hwy. 299 to Co. Rd. 341, along river access trail at end of road Comment
  UC673002  Claytonia perfoliata subsp. perfoliata Joseph P. Tracy 1927-5-15 8036 Humboldt near South Fork; Trinity River Valley 182 Comment
  HSC70226  Claytonia rubra subsp. rubra M. A. Baker 1980-6-8 1888 Humboldt Near Buck Flat. 1554 Comment
  RSA259540  Claytonia saxosa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5623 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  UC1537254  Claytonia sibirica Gordon H. True Jr. 1936-5-12 472 Humboldt 5 mi s Kneeland 457 Comment
  UCR275110  Claytonia sibirica Charity A. Hartshorn 2016-5-14 32 Humboldt Arcata Community Forest 244 Comment
  JEPS43236  Claytonia sibirica W. L. Jepson 1934-5-7 16694 Humboldt Bull Creek Flat; Bull Creek Comment
  RSA117681  Claytonia sibirica S. S. Tillett 1956-7-3 602 Humboldt 29 miles from jct 101, just past cutoff for Humboldt Ski Club area Comment
  UCD15453  Claytonia sibirica Collector Unknown 1974-1-6 136 Humboldt California, Humbolt Co.; Patricks Pt. State Park along Hwy 101, along trail to Agate Beach; 3 Comment
  UC1173720  Clematis lasiantha Joseph P. Tracy 1939-4-29 16229 Humboldt bluffs opposite mouth of Hors-Linto Creek (Trinity R.); Trinity R. 152 Comment
  HSC14260  Clinopodium douglasii Paul Shields Jun 1955 Humboldt 3 mi. N of Weott Comment
  JEPS55586  Clintonia andrewsiana W. Roderick and H. M. Beard 1960-5-29 Humboldt 7 road mi se of Carlotta Comment
  RSA39092  Clintonia andrewsiana Philip A. Munz 1948-8-15 12359 Humboldt Van Duzen Redwood State Park. Comment
  CAS-BOT-BC238027  Collinsia Doris Kildale Gillespie 1931-6-7 10608 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  HSC38791  Collinsia grandiflora J. P. Smith 1976-5-30 8824 Humboldt Near Black Rock on the road to Clear Lake 1524 Comment
  HSC102536  Collinsia parviflora M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1522 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  JEPS6171  Collinsia rattanii Joseph P. Tracy 1925-5-30 7032 1/2 Humboldt Laribee Valley; North Coast Ranges 701 Comment
  HSC56220  Collomia grandiflora G. L. Clifton, Griswold 1979-8-2 12247 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC146170  Collomia grandiflora Joseph P. Tracy 1908-6 2932 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 304 Comment
  HSC60033  Collomia heterophylla M. A. Baker 1978-5-6 477 Humboldt Bald Hills Rd., between Klamath River and French Camp Rd. Comment
  UC52746  Collomia heterophylla J. P. Tracy 1900-5-28 823 Humboldt Eureka Comment
  UCR111241  Collomia heterophylla H. E. Parks 1933-1 01152 Humboldt North Coast, Spruce Cove, Trinidad 76 Comment
  HSC16921  Collomia heterophylla D. E. Anderson 1965-5-15 3699 Humboldt 5 mi. N of Hoopa on Bald Hills Rd. 198 Comment
  HSC96946  Collomia heterophylla Ryoko Ito, Shauna McDonald 2007-6-13 9 Humboldt 1 mi. from NF1 on FS 5N04 1601 Comment
  UC1197841  Collomia heterophylla Joseph P. Tracy 1940-7-7 16668 Humboldt rocky bank Grouse Mt. 1463 Comment
  UC717114  Collomia heterophylla S. K. Harris 1942-6-12 1386 Humboldt Fickle Hill Road to Boynton Prairie (roadside banks; Sn 2 e) 600 Comment
  HSC97228  Collomia tinctoria Kiera A. Freeman, Heather J. Perry 2007-6-11 6 Humboldt 14.1 mi. S of Hwy. 299 on NF1 1372 Comment
  HSC36634  Collomia tracyi Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1907 Humboldt N side of Pine Mtn. Comment
  HSC99065  Collomia tracyi Cara Witte 2008-7-2 812 Humboldt Board Camp Mountain. Road to Tri Board Camp. Forest Service Road 4N38. 1574 Comment
  HSC36436  Conium maculatum John Rehlingl 1974-6-27 Humboldt Along Alliance Rd. Comment
  UCSC000566  Convolvulus soldanella H. S. Yates 1936-6-16 5657 Humboldt 0.5 mile S.W. of Samoa Samoa - Eureka 3 Comment
  HSC91919  Conyza canadensis E. Mackey 1987-9-5 Humboldt Patricks Point State Park; in dune area Comment
  UC1199442  Conyza canadensis Joseph P. Tracy 1939-8-5 16395 Humboldt along Van Duzen River (Dinsmore's) 737 Comment
  HSC104334  Coptis laciniata James Regan, Humboldt Redwood Co., LLC 2009-4-1 33 Humboldt Snow Camp Rd., Bald Mtn. Creek Comment
  BLMAR83  Corallorhiza maculata Jennifer Anthony-Wheeler 1994-6-2 83 Humboldt IAQUA 1036 Comment
  HSC98642  Corallorhiza maculata Cara Witte 2008-7-11 883 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  JEPS64347  Corallorhiza maculata W. L. Jepson 1902-6-28 1947 Humboldt Hupa Rd Green Point Ranch (ridge) 914 Comment
  RSA20798  Corallorhiza maculata Carl B. Wolf 1937-8-13 9263 Humboldt North Coast Range, 12 mi. E. of Hoopa Valley on New Road toward Trinity Summit. 1677 Comment
  HSC64188  Corallorhiza mertensiana J. O. Sawyer, M. A. Ericksen 1979-6-23 3380 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  UC1196459  Corallorhiza mertensiana Joseph P. Tracy 1908-6 2724 Humboldt Buck Mt. Northern Coast Ranges (nw slope, foot) 304 Comment
  UC14974  Corallorhiza mertensiana Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5625 1/2 Humboldt Bald Mt. Northern Coast Ranges Comment
  HSC76251  Cordylanthus tenuis subsp. viscidus Denis Kearns 1981-7-6 64 Humboldt Near Mosquito Lake 1256 Comment
  HSC41586  Cordylanthus tenuis subsp. viscidus Thomas W. Nelson, Jane P. Nelson 1977-9-3 3718 Humboldt Along ridge between Bear Creek and Blanket Creek 1494 Comment
  HSC39628  Cornus nuttallii Thomas W. Nelson, Jane P. Nelson 1976-6-15 2733 Humboldt Just W of Goat Hill, along branch road off FS 2S08 1463 Comment
  HSC60034  Cornus nuttallii M. A. Baker 1978-5-6 467 Humboldt Junction of Bald Hills Rd. with French Camp Rd. Comment
  HSC6413  Cornus nuttallii J. J. Wagoner 1965-5-1 20 Humboldt 6 mi. W of Willow Creek along Hwy. 299 Comment
  CAS-BOT-BC212181  Cornus sericea Joseph P. Tracy 1929-8-18 8653 Humboldt Dinsmore's Ranch on Van Duzen River opposite Buck Mountain 670 Comment
  HSC57091  Cornus sericea subsp. sericea Overton, Butler 1979-7-24 9805 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC82313  Cornus sericea subsp. sericea Thomas W. Nelson, Linda M. Barker 1977-6-3 3385 Humboldt Floodplain of Mad River at S end of Mad River Bridge. 53 Comment
Read comments
May 7 2013
  UC502982  Cornus sericea subsp. sericea Joseph P. Tracy 1929-8-18 8653 Humboldt on Van Duzen R. opposite Buck Mt. (Dinsmore's Ranch); Northern Coast Ranges, Van Duzen R., Dinsmore's Ranch 670 Comment
  SFV5370  Cornus sessilis J. Turner, F. M. Ball 1962-7-10 s. n. Humboldt East Fork Willow Creek Forest Camp. Highway 299 about 5 miles west of Willow Creek. 457 Comment
  HSC93466  Cortaderia selloana Gordon Leppig 1998-10-26 1106 Humboldt Arcata, Bayside Rd. at Crescent Way 6 Comment
  UC1197932  Corylus californica Joseph P. Tracy 1923-8-19 6538 Humboldt Lawrence Creek near Kneeland Prairie Comment
  HSC56977  Corylus cornuta subsp. californica Overton, Butler 1979-7-23 9512 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  SEINET3817853  Cotula coronopifolia C. L. Hitchcock, J. S. Martin 1939-7-14 5434 Humboldt Pool on cliff above pier at shelter cove Comment
  UC1199279  Cotula coronopifolia Joseph P. Tracy 1922-5-28 6058 Humboldt Little River Beach North Coast Ranges. Little River Beach 6 Comment
  UC1198822  Crassula aquatica Joseph P. Tracy 1914-5-14 4470 Humboldt Fort Seward Northern Coast Ranges, Fort Seward 121 Comment
  SD62065  Crepis capillaris Darley F. Howe 1965-8-7 Humboldt Orick Comment
  CAS-BOT-BC290584  Crepis capillaris Doris K. Kildale 1925-7-17 1073 Humboldt Cutten Tract - Eureka Comment
  POM289673  Crepis capillaris Lyman Benson 1929-7-12 1798 Humboldt Weott Ranger Station; S Fork Eel River. Comment
  UC905064  Crepis setosa Henry M. Pollard 1948-8-8 Humboldt roadside between Orleans and Camp Creek Comment
  HSC100428  Crocidium multicaule Carl C. Marshall Apr 1887 366 Humboldt Hoopa Valley, near Supply Creek. Comment
  HSC58318  Cryptantha affinis Overton, Butler 1979-8-2 12606 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1239650  Cryptantha torreyana Joseph P. Tracy 1923-6-3 6259 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1222265  Cryptantha torreyana Joseph P. Tracy 1949-8-11 18470 Humboldt 2-6 mi s Grouse Mt. (e of headwaters of Redwood Creek, power plant southward); Kinsey Ridge 1280 Comment
  HSC55114  Cryptogramma acrostichoides Gilbert Muth 1979-8-1 11879 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  UC71489  Cryptogramma acrostichoides Joseph Burtt Davy and W. C. Blasdale 1899-6-21 5844 Humboldt Trinity Summit Comment
  SEINET11719535  Cryptogramma acrostichoides F. H. Utech, Sato, T.; Ohara, M. 1990-1 90 -317 Humboldt Six Rivers National Forest, 0.5 mi S of CA 199 on French Hill Rd (USFS Rd 411) 150 Comment
  HSC58088  Cuscuta californica G. L. Clifton, Griswold 1979-8-1 11997 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  UCSB24349  Cuscuta subinclusa Tracy, Joseph 1924-7-20 Humboldt Brannan Mt.; on Willow Cr. Road 1005 Comment
  HSC3638  Cynoglossum grande D. E. Anderson 1962-3-17 1931 Humboldt About 3 mi. W of Bridgeville, along S.R. 36 Comment
  HSC3641  Cynoglossum grande A. H. Teshima 1963-3-10 5 Humboldt Moonstone Beach area Comment
  UC1239625  Cynoglossum grande Joseph P. Tracy 1933-6-13 12564 Humboldt near summit on rd. from Hoopa westward to Bair's (Hoopa Mt.); Hoopa Mt. 1066 Comment
  UC1103239  Cynosurus cristatus Joseph P. Tracy 1941-7-26 16969 Humboldt Eureka 30 Comment
  HSC53799  Cynosurus echinatus Griswold, Butler 1979-7-10 6219 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  HSC68940  Cynosurus echinatus Jacqueline Greenleaf 1980-8-12 326 Humboldt Near Pistol Spring. 1082 Comment
  UCD60184  Cynosurus echinatus J. Street 1950-5-28 s. n. Humboldt Alder Point. Comment
  UC1103632  Cyperus eragrostis Joseph P. Tracy 1934-7-14 13399 Humboldt along Mad R. near Blue Lake; Mad R. 15 Comment
  POM160839  Cyperus squarrosus Joseph P. Tracy 1920-8-15 5362 Humboldt Klamath River at Bluff Creek. 152 Comment
  HSC54527  Cypripedium californicum Overton, Butler 1979-7-23 9466 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  HSC97462  Cystopteris fragilis Cara Witte 2007-5-23 103 Humboldt Near Grouse Mountain. Along 4N32. Approximately 0.5 miles south of intersection with 5N04 and 4N32E. 1398 Comment
  RSA183569  Cytisus monspessulanus R. I. Bonn 1965-3-19 8 Humboldt 1/2 mi. south of G.P. mill on Samoa Rd. Comment
  CHSC10111  Cytisus scoparius T. M. Mingo 1965-5-1 Humboldt Approximately 5 miles north of Trinidad in fields near the coast. Comment
  CAS-BOT-BC189764  Dactylis glomerata F. W. Peirson 1933-7-12 3655 Humboldt 5 miles north of Orick. Comment
  HSC9531  Dactylis glomerata W. F. Nickel 1965-3-17 Humboldt Humboldt State University campus Comment
  UC1103247  Dactylis glomerata Joseph P. Tracy 1927-6-24 8205 Humboldt Eureka; Northern Coast Ranges, Eureka 0 Comment
  CAS-BOT-BC189740  Danthonia californica Joseph P. Tracy 1928-6-24 8463 Humboldt Northern Coast Ranges. Valley of South Yager Creek. 762 Comment
  HSC1967  Danthonia californica William J. Ferlatte, B. D. Rogers 1966-6-15 2108 Humboldt Larabee Valley 762 Comment
  HSC32479  Danthonia californica D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5721 Humboldt McKeown Ranch, N of Dinsmore Comment
  UC1198874  Darmera peltata Joseph P. Tracy 1935-9-29 14755 Humboldt Blue Slide Van Duzen River (on the Van Duzen River) 91 Comment
  JEPS45729  Datisca glomerata Lincoln Constance 1934-6-11 857 Humboldt along South Fork Eel River, N. Dyerville Flat South Fork Eel River; Bull Creek Region, South Fork Eel River Comment
  HSC12418  Daucus carota D. Santana 1970-10-15 72 Humboldt 11th and A St. in open vacant lot Comment
  UC1197355  Daucus pusillus Joseph P. Tracy 1918-7-3 4996 Humboldt Shelter Cove Northern Coast Ranges, Shelter Cove 15 Comment
  HSC96221  Delphinium decorum subsp. tracyi Eric Schori, Kazuyuki Ishimaru 2005-6-3 2 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment
  CAS-BOT-BC9953  Delphinium nudicaule Doris K. Kildale 1927-5-20 3164 Humboldt Bug Creek 792 Comment
  CAS-BOT-BC9959  Delphinium nudicaule Volney Rattan 1879-1-1 s.n. Humboldt Hoopa Valley Comment
  UC249530  Delphinium nudicaule Joseph P. Tracy 1922-4-30 6012 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  CAS-BOT-BC121962  Delphinium trolliifolium Doris K. Kildale 1928-5-15 6018 Humboldt Bug Creek, Chaparral Mountain 914 Comment
  RSA20971  Delphinium trolliifolium Carl B. Wolf 1937-6-14 8827 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  CAS-BOT-BC121972  Delphinium trolliifolium Lester Rowntree 1938-6-4 s.n. Humboldt Stone Lagoon, near Orick Comment
  RSA18060  Deschampsia beringensis C. B. Wolf 1927-8-22 794 Humboldt Big Lagoon Comment
  BLMAR661  Deschampsia cespitosa Jennifer Wheeler 2012-7-13 661 Humboldt King range 670 Comment
  HSC40248  Deschampsia cespitosa Linda M. Barker 1976-7-5 1645 Humboldt 3 mi. W of Arcata. Comment
  UC1131482  Deschampsia cespitosa subsp. beringensis H. S. Yates 1936-6-18 5731 Humboldt Big Lagoon Rocky Point Quad., Big Lagoon 7 Comment
  CAS-BOT-BC192545  Deschampsia cespitosa subsp. holciformis J. B. Davy; W. C. Blasdale 1899-5-1 6214 Humboldt Eureka Comment
  CAS-BOT-BC201771  Deschampsia elongata H. N. Bolander 1862-1-1 s.n. Humboldt Unspecified Comment
  HSC38624  Deschampsia elongata D. E. Anderson, J. P. Smith 1971-6-21 - 1105 Humboldt 2 mi. E of Garberville, on rd. to Alderpoint. Comment
  HSC98585  Deschampsia elongata Cara Witte 2008-7-30 964 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1589 Comment
  UC187267  Deschampsia elongata Joseph P. Tracy 1911-7-7 3412 Humboldt 3 mi. n.w. of junction of Willow Creek with Trinity R. (near Beebe's Ranch, at meadows on mt. side); Northern Coast Ranges 914 Comment
  UC905063  Deschampsia elongata Henry M. Pollard 1948-7-19 Humboldt Orlegno to Red Cap Creek (n. river rd.) Comment
  UC1196302  Dicentra formosa Joseph P. Tracy 1947-8-24 17914 Humboldt near Box Camp (Trinity Summit); Trinity Summit 1524 Comment
  UCD114222  Dicentra formosa James P. Smith 1973-5-5 6480 Humboldt Along Cook and Green Pass Road. Comment
  SEINET12103158  Dicentra formosa J. P. Tracy 1950-1 18720 Humboldt Near Mountain Glen, 7 mi S of Ferndale 610 Comment
  UC1222560  Dicentra formosa Joseph P. Tracy 1950-6-8 18720 Humboldt 7 mi s Ferndale (near Mountain Glen); Bear River Ridge 609 Comment
  UC35008  Dicentra uniflora W. C. Blasdale 1896-1 Humboldt Top of South Fork Mountain Comment
  SEINET200953 Image available Dichanthelium oligosanthes subsp. scribnerianum Joseph P. Tracy 1931-5-17 9428 Humboldt Rocky places along river. Trinity River Valley at Willow Creek Comment
  HSC39057  Dichelostemma capitatum subsp. capitatum Thomas W. Nelson, Jane P. Nelson 1976-5-31 2643 Humboldt N of junction of FS Rds. 1S07 and 5E27 along 5E27 1524 Comment
  HSC48790  Dichelostemma capitatum subsp. capitatum Brad Klipfel 1975-6-17 664 Humboldt Along Titlow Hill Rd. Comment
  HSC38482  Dichelostemma ida-maia D. E. Anderson, J. P. Smith 1971-6-18 - 1062 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  SBBG11069  Dichelostemma ida-maia D. E. Breedlove 1961-7-4 649 Humboldt 10.9 mi W of Willow Crk on US Hwy 299 822 Comment
  UC1133927  Dichelostemma ida-maia A. E. Wieslander 1931-5-15 191 Humboldt Hoopa Indian Reservation Hoopa Quad. Comment
Read comments
May 14 2010
  CAS-BOT-BC501015  Dichelostemma ida-maia W. R. Dudley 1899-6-20 s.n. Humboldt Near Eel River Comment
  HSC3027  Dichelostemma ida-maia H. E. Parks, S. T. Parks Jun 1928 259 Humboldt Gills 305 Comment
  HSC69691  Digitalis purpurea R. Kalal 1980-5-18 24 Humboldt Hwy. 101, 0.5 mi. W of Orick 6 Comment
  CAS-BOT-BC150350  Diplacus aurantiacus L. R. Abrams 1916-7-18 6072 Humboldt Fortuna Comment
  CAS-BOT-BC150353  Diplacus aurantiacus Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  SBBG6909  Diplacus aurantiacus M. J. Cody 1938-7-14 Humboldt Trinidad Head Comment
  SEINET193360  Diplacus kelloggii Lincoln Constance, Reed C. Collins 1942-1 2894 Humboldt Bluffs at jnct of Klamath & Salmon Rivers, 1mi S of Somes Bar 152 Comment
  CHSC94953  Disporum smithii K. Lang; J. Lang 2005-3-16 25 Humboldt Trinidad, N. California coast. 51 Comment
  JEPS61836  Disporum smithii W. L. Jepson 1932-7-27 16477 Humboldt Bull Creek Comment
  UC519703  Disporum smithii Victor Duran 1933-5-12 3413 Humboldt Dyerville, South Fork of the Eel River South Fork Eel River; Dyerville, South Fork Eel River Comment
  HSC37496  Distichlis spicata J. D. Ackerman 1975-8-2 614 Humboldt Hwy. 101 between Eureka and Arcata, along Humboldt Bay across from Murray Field. Comment
  UC1222563  Dodecatheon hendersonii Joseph P. Tracy 1950-5-7 18644 Humboldt on the road to South Yager Valley about 5 mi n Bridgeville; n of Bridgeville 198 Comment
  RSA168808  Dodecatheon jeffreyi Joseph P. Tracy 1951-6-14 19406 Humboldt Snow Camp. 1402 Comment
  UC1001280  Downingia elegans W. L. Jepson 1927-7-3 12363 Humboldt Miranda South Fork Eel River 228 Comment
  JEPS53536  Draba verna Joseph P. Tracy 1922-4-2 5986 Humboldt near Carlotta (Van Duzen River bar); Northern Coast Ranges, , nr Carlotta 30 Comment
  CAS-BOT-BC159614  Drymocallis glandulosa var. glandulosa Doris K. Kildale 1926-5-9 1993 Humboldt Kneeland Prairie 762 Comment
  HSC44528  Drymocallis lactea var. lactea Brad Klipfel 1973-7-1 136 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS47204  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
  CAS-BOT-BC70872  Dryopteris arguta Doris K. Kildale 1928-12-30 6884 Humboldt Phillipsville Comment
  UC62809  Dryopteris expansa Marshall A. Howe 1896-5-30 Humboldt Eureka Comment
  UC183454  Echinochloa crus-galli Joseph P. Tracy 1900-11-1 973 Humboldt Eureka; Northern Coast Region 0 Comment
  UC535737  Echinochloa crus-galli Eleanor Armstrong 1151 Humboldt Richardson Grove Comment
  CAS-BOT-BC112841  Eleocharis macrostachya Henry M. Pollard 1945-8-27 s.n. Humboldt Pond near Harley place. Comment
  HSC96564  Eleocharis pachycarpa Gordon Leppig 1997-8-3 648 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  UC1103663  Eleocharis parishii Joseph P. Tracy 1931-9-7 9661 Humboldt Willow Creek; Trinity River Valley 152 Comment
  POM126088  Eleocharis parvula Joseph P. Tracy 1924-8-3 6744 Humboldt Stone Lagoon Comment
  UC212885  Elymus X hansenii Joseph P. Tracy 1919-9-23 5279 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  CAS-BOT-BC227343  Elymus elymoides Joseph P. Tracy 1935-7-28 14317 Humboldt Trinity Summit. Head of Devil's Hole 1828 Comment
  UCD61906  Elymus glaucus R. Tofsrud 1948-9-1 Humboldt Road junction near summit of Horse Mt. 1463 Comment
  UCD62266  Elymus glaucus August L. Hormay 1932-5-12 Humboldt Bull Creek Road. Comment
  HSC102546  Elymus glaucus subsp. glaucus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1536 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC58601  Elymus glaucus subsp. glaucus G. L. Clifton, Griswold 1979-7-25 10826 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC9729  Elymus mollis subsp. mollis S. J. Moore 1965-5-3 2 Humboldt Gold Beach Comment
  SEINET200933  Elymus trachycaulus subsp. trachycaulus J. P. Tracy 1912-7-27 3885 Humboldt Kneeland prairie 762 Comment
  UCD117423  Empetrum nigrum subsp. hermaphroditum James Payne Smith Jr. 1975-3-31 8048 Humboldt Megwill Point on Elk Head, just north of College Cove. Comment
  HSC98656  Epilobium brachycarpum Cara Witte 2007-7-26 589 Humboldt National Forest 1 on Kinsey Ridge. 1/4 mile south of intersection with 4N06. Near power poles. 1283 Comment
  POM225535  Epilobium brachycarpum P. A. Munz 1936-8-10 14337 Humboldt Little Van Duzen River, 15 miles east of Bridgeville. Comment
  RSA40412  Epilobium brachycarpum P. A. Munz 1948-8-13 12348 Humboldt Highway 229, 21 miles E of Blue Lake. 762 Comment
  CDA38081  Epilobium ciliatum T. C. Fuller 1958-6-17 17 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  HSC101058  Epilobium ciliatum John McRae 1997-7-2 240 Humboldt Near south portion of Lassics Botanical Area; Van Duzen Rd off Hwy. 36 to Forest Service Rd. 1S07, west on FS Rd. 2S08 to 2S08C, ~ 5 mi. further 1555 Comment
  HSC103280  Epilobium ciliatum subsp. glandulosum John McRae 2012-9-7 1270 Humboldt Six Rivers National Forest, Lower Trinity District, Forest Service Road 5N10, at the crossing of Willow Creek. 1294 Comment
  POM89782  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1919-9-18 5225 Humboldt Northern Coast Ranges: Trinity Summit 1890 Comment
  HSC16348  Epilobium ciliatum subsp. watsonii Paul Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  UC1198500  Epilobium densiflorum Joseph P. Tracy 1909-8-1 3059 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC161070  Epilobium densiflorum Joseph P. Tracy 1911-7-8 3475 Humboldt near mouth of Willow Creek; Northern Coast Ranges, valley of Trinity River 152 Comment
  UC1198503  Epilobium densiflorum Joseph P. Tracy 1911-7-11 3509 Humboldt mouth of Supply Creek Northern Coast Ranges, Hoopa Valley 152 Comment
  HSC55113  Epilobium glaberrimum G. L. Clifton 1979-7-31 11868 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC102565  Epilobium glaberrimum subsp. glaberrimum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1552 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC55081  Epilobium hallianum G. L. Clifton, Griswold 1979-7-31 11736 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  UC1222850  Epilobium hallianum Joseph P. Tracy 1950-7-6 19015 Humboldt 3 mi s Burr Valley (w side of mt.); Buck Mountain 1158 Comment
  HSC55147  Epilobium oregonense G. L. Clifton, Griswold 1979-8-1 12067 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  JEPS31520  Epilobium septentrionale Joseph P. Tracy 1933-9-9 13075 Humboldt vicinity of Garberville (along S. Fork Eel R.); S. Fork Eel R. 121 Comment
  POM272052  Epilobium septentrionale J. W. Thompson 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  SEINET200606 Image available Equisetum hyemale J. P. Tracy 1926-9-6 7795 Humboldt Trinity River Valley near the S Fork 183 Comment
  MACF019709  Equisetum telmateia subsp. braunii C. V. Morton 1955-8-23 27237 Humboldt Roadside near Province Creek State Park entrance Comment
  POM118344  Equisetum telmateia var. braunii Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  CAS-BOT-BC291178  Erechtites glomeratus L. R. Abrams 1916-7-18 6108 Humboldt Arcata to Trinidad, 18 mi along coast Comment
  POM174069  Erechtites glomeratus Joseph P. Tracy 1918-9-1 5095 Humboldt Newells Camp, around Humboldt Bay. On old Kneeland Prairie Road. 457 Comment
Read comments
Jun 10 2012
  HSC48317  Ericameria greenei Brad Klipfel 1973-8-3 307 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC57894  Ericameria greenei Butler, Overton 1979-7-31 11469 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC99129  Ericameria greenei Cara Witte 2008-9-13 1038 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  UC912295  Erigeron biolettii Herbert L. Mason 1928-7-14 4908 Humboldt near Garberville; East Fork Eel River Comment
  UCR51797  Erigeron foliosus var. mendocinus P. A. Munz 1948-8-15 12358 Humboldt Van Duzen Redwood State Park 245 Comment
  HSC26355  Erigeron glaucus T. O. Osborne 1970-9-16 32 Humboldt Trinidad Bay, Prisoner Rock Comment
  CDA4961  Erigeron glaucus T. C. Fuller 1961-9-28 7053 Humboldt 1.5 miles south of Samoa. 0 Comment
  RSA246776  Erigeron glaucus R. F. Thorne, Percy C. Everett 1965-8-7 35220 Humboldt Samoa Peninsula. 3 Comment
  JEPS21931  Erigeron inornatus var. inornatus Joseph P. Tracy 1933-8-6 12935 Humboldt French Camp Ridge 1066 Comment
  UC1199406  Erigeron inornatus var. inornatus Joseph P. Tracy 1935-7-27 14280 Humboldt open places at Corral Prairie; Trinity Summit 1584 Comment
  UC34630  Erigeron inornatus var. inornatus Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  UC205158  Erigeron klamathensis Joseph P. Tracy 1919-9-25 5299 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  JEPS21941  Erigeron philadelphicus var. philadelphicus Joseph P. Tracy 1936-6-17 14963 Humboldt on nw slope Buck Mountain (Burr Valley); Northern Coast Ranges, , Burr Valley 1066 Comment
  HSC81654  Erigeron robustior Thomas W. Nelson, Jane P. Nelson 1980-7-13 6056 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  POM126126  Erigeron strigosus Joseph P. Tracy 1923-6-27 6384 Humboldt Trinity River Valley, near Willow Creek Comment
  SEINET10466244  Eriocaulon Mary Susan Taylor 1990-8-22 Taylor 6083 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  HSC24402  Eriodictyon californicum J. O. Sawyer 1970-6-24 2224 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  UC412835  Eriogonum compositum var. compositum P. E. Goddard 1906-6 665 Humboldt Lasseck Pk. Comment
  CAS-BOT-BC259155  Eriogonum latifolium A. A. Heller 1924-7-22 13873 Humboldt At Samoa opposite Eureka Comment
  CHSC69503  Eriogonum latifolium Vernon Oswald; Lowell Ahart 1997-9-4 8853 Humboldt North Spit of Humboldt Bay, west side of New Navy Base Rd. 1.1 mi south of Hwy. 255. 6 Comment
  UC774621  Eriogonum latifolium Carl B. Wolf 1937-9-12 9331 Humboldt Clam Beach 7 Comment
  UC672913  Eriogonum latifolium Joseph P. Tracy 1927-6-18 8175 Humboldt s point of the Cape (near ocean shore); Cape Mendocino 3 Comment
  UC1198101  Eriogonum luteolum var. luteolum Joseph P. Tracy 1919-9-13 5192 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  CAS-BOT-BC261495  Eriogonum nudum var. nudum Harley P. Chandler 1901-6-1 1491 Humboldt Klamath River 304 Comment
  UC54702  Eriogonum nudum var. nudum Harley P. Chandler 1901-6-1 1350 Humboldt Hupa Indian Reservation North Coast Ranges, Hupa Indian Reservation 152 Comment
  CAS-BOT-BC261724  Eriogonum nudum var. oblongifolium Doris K. Kildale 1926-5-9 1991 Humboldt Kneeland Prairie, Rock Pile 853 Comment
  UC176714  Eriogonum nudum var. oblongifolium Joseph P. Tracy 1912-7-21 3757 Humboldt Alton 30 Comment
  HSC43082  Eriogonum umbellatum var. argus Brad Klipfel 1973-8-3 305 Humboldt N Trinity Mtn. 1860 Comment
  UC672893  Eriogonum umbellatum var. argus Joseph P. Tracy 1935-7-28 14329 Humboldt head of Devil's Hole Trinity Summit, Devil's Hole 1828 Comment
  UC672894  Eriogonum umbellatum var. argus Joseph P. Tracy 1935-7-23 14133 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  HSC74176  Eriogonum umbellatum var. stellatum M. A. Baker 1980-7-23 3149 Humboldt Near Orleans Mtn. 1859 Comment
  SEINET3841343 Image available Eriogonum umbellatum var. stellatum Joseph P. Tracy 1935-7-28 14329 Humboldt Trinity Summit, Head of Devil's Hole 1829 Comment
  BLMAR539  Eriophyllum lanatum Jennifer Wheeler 2009-6-23 539 Humboldt King range, On Paradise Ridge road Comment
  HSC28146  Eriophyllum lanatum Chris Gist 1971-6-19 36 Humboldt 3 mi. in on Titlow Hill Rd. from California State Hwy. 299, Horse Mtn. Comment
  HSC38623  Eriophyllum lanatum D. E. Anderson, J. P. Smith 1971-6-21 - 1110 Humboldt 5.2 mi. E of the bridge over Eel River at Alderpoint, near Humboldt-Trinity county line Comment
  HSC48029  Eriophyllum lanatum Brad Klipfel 1974-6-25 425 Humboldt Horse Mtn. Comment
  CAS-BOT-BC301015  Eriophyllum lanatum var. achilleoides Doris K. Kildale 1926-5-9 1980 Humboldt Kneeland Prairie 762 Comment
  JEPS34743  Eriophyllum lanatum var. achilleoides Lincoln Constance 1934-5-26 678 Humboldt s end of Dyerville Bridge (South Fork of Eel River); Bull Creek Region, South Fork Eel River 45 Comment
  UC169042  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1912-7-26 3837 Humboldt Kneeland Prairie Northern Coast ranges, Kneeland Prairie 762 Comment
  POM358028  Eriophyllum lanatum var. aphanactis Thomas W. Nelson, Jane P. Nelson 1977-7-1 3579 Humboldt Head of North Fork of Conley Creek, W side of road N from Alder Spring. 1463 Comment
  SD148242  Eriophyllum lanatum var. croceum G. K. Helmkamp, E. A. Helmkamp 2001-7-8 6991 Humboldt North coast redwood area; California Highway 36, along the Van Duzen River, 19.6 miles east of U. S. 101. 136 Comment
  UC165856  Eriophyllum lanatum var. lanceolatum Joseph P. Tracy 1911-7-8 3441 Humboldt about 0.5 mi above mouth Willow Creek (on s bank of river); Northern Coast Ranges, Valley of the Trinity River 152 Comment
  UC90272  Eriophyllum lanatum var. lanceolatum Volney Rattan Jul 1878 Humboldt Comment
  JEPS61382  Erodium cicutarium Lincoln Constance 1934-5-27 702 Humboldt s end Dyerville Bridge (South Fork Eel River); , Bull Creek Region 45 Comment
  HSC100484  Erodium cicutarium Carl C. Marshall Jun 1887 478 Humboldt Everywhere. Comment
  CDA17342  Eryngium articulatum P. Haggard 2004-8-15 PDR 1285928 Humboldt North Coast Ranges; Six Rivers National Forest on Friday Ridge Rd, Willow Creek. 0 Comment
  HSC82395  Erysimum capitatum Thomas W. Nelson 1979-7-11 5008 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  CAS-BOT-BC41568  Erysimum capitatum Volney Rattan 1882-1-1 s.n. Humboldt Unspecified. Comment
  HSC6764  Erysimum capitatum var. capitatum Lincoln Constance 1934-6-22 919 Humboldt S Fork Eel River, summit of Grasshopper Peak down Canoe Creek Rd. to Redwood Hwy., and thense N to Dyerville Comment
  HSC47486  Erysimum menziesii Sheila Logan 1978-4-7 4 Humboldt Samoa sand dunes, 1/4 mi. N of Coast Guard Station. Comment
  HSC6772  Erysimum menziesii Francis Winter 1960-3-26 Humboldt Samoa Peninsula, 2 mi. N of Coast Guard Station Comment
  SEINET13693817 Image available Erythranthe dentata Noel H. Holmgren, Liew Fah Seong 1969-1 3613 Humboldt Prairie Creek Redwoods, in forest above coast near Del Norte County line Comment
  HSC104341  Erythronium californicum James Regan 2007-5-9 7 Humboldt Kneeland, near Kneeland Airport 854 Comment
  SEINET10528799  Erythronium californicum Frank W. Gould 1939-5-30 Gould 826 A Humboldt Near top of Horse Mountain, in Pinus monticola-P. jeffreyi-Libo-cedrus forest; 3500 feet. 1065 Comment
  UC1222542  Erythronium californicum Joseph P. Tracy 1950-4-20 18616 Humboldt two mi w Dinsmore's (lower foothills of nw slope of mountain); Buck Mountain 762 Comment
  HSC104331  Erythronium oregonum James Regan, Humboldt Redwood Co., LLC 2007-5-3 21 Humboldt Long Ridge, near Taylor Peak, west of Scotia / Bear River 793 Comment
  UC1541310  Erythronium purpurascens W. K. Parks July 1933 1397 Humboldt South Fork Mountain Comment
  CAS-BOT-BC133333  Erythronium revolutum Doris K. Kildale; L. B. Kildale 1930-5-11 9536 Humboldt [Wire Grass] Wiregrass Prairie - The Bald Hills 792 Comment
  JEPS88924  Erythronium revolutum Harley P. Chandler Jun 1901 1279 Humboldt Hupa Indian Reservation 1066 Comment
  HSC104344  Erythronium revolutum James Regan, Humboldt Redwood Co., LLC 2007-5-9 6 Humboldt Kneeland 854 Comment
  UC146086  Eschscholzia californica Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  CAS-BOT-BC403038  Eschscholzia californica R. James; M. Goering; S. Matthews 1985-4-20 045 Humboldt Burnt Ranch Campground, Shasta-Trinity National Forest Comment
  HSC59686  Eschscholzia californica George Kirn 1977-8-20 Humboldt Eureka, 6th and Myrtle Ave. Comment
  UC146099  Eschscholzia californica Joseph P. Tracy 1904-7-4 2118 Humboldt near Bucksport; Northern Coast Region, region about Humboldt Bay 0 Comment
  UC184939  Eschscholzia californica Joseph P. Tracy 1913-6-15 4138 Humboldt Dinsmore's Ranch Northern Coast Ranges, Valley of Van Duzen River (opposite Buck Mountain) 762 Comment
  HSC59103  Eucalyptus globulus Clark L. Miller 1979-5-24 9157 Humboldt Along Hwy. 101 ca. 100 yards from Murray Rd. off-ramp. Comment
  RSA168833  Euchiton gymnocephalus Joseph P. Tracy 1946-6-23 17596 Humboldt Dan McBride's place, southeast end of Kneeland Prairie 762 Comment
  UC1196541  Euchiton involucratus Joseph P. Tracy 1948-9-26 18232 Humboldt 6 mi se Arcata (at s end of Fickle Hill); Fickle Hill 609 Comment
  CAS-BOT-BC310488  Euchiton sphaericus Joseph P. Tracy 1915-9-12 4677 Humboldt Northern Coast Ranges. Mouth of Laribee Creek 60 Comment
  RSA42022  Euchiton sphaericus H. C. Cantelow 1936-8-29 1567 Humboldt 1 mile off Riv. [High.?] S. Fork Eel River Bridge, 17 miles N of Garberville Comment
  UCR208901  Euphorbia crenulata M. S. Jussel 1931-5-2 s.n. Humboldt Northwestern Coast; Outer North Coast Ranges, 6 miles from Garberville Comment
  HSC100481  Euphorbia dictyosperma Carl C. Marshall Jun 1887 431 Humboldt Perrington Creek on rocks. Comment
  HSC36229  Euphorbia helioscopia John Rehling 1975-5-5 57 Humboldt HSU campus Comment
  HSC59575  Euphorbia peplus Rick Lundquist 1979-4-24 37 Humboldt Arcata, lower Church parking lot at E end of 16th St. 46 Comment
  UC419045  Eurybia radulina H. E. Parks, J. P. Tracy 1930-9-15 769 Humboldt Kneeland Bald Hills Comment
  CAS-BOT-BC312210  Eurybia radulina Doris K. Kildale 1926-8-22 2588 Humboldt On Orick - Martin's Ferry Road 716 Comment
  HSC66404  Eurybia radulina Ruby Van Deventer 1950-8-15 Humboldt Myers Falt 61 Comment
  HSC35971  Fallopia convolvulus Thomas W. Nelson, J. O. Sawyer 1975-9-25 2024 Humboldt Beside Hwy. 101 at 11th St. bridge Comment
  HSC99867  Festuca californica Thomas W. Nelson, Jane P. Nelson 1976-7-1 2892 Humboldt Along ridge N of Bear Creek 1463 Comment
  CAS-BOT-BC278423  Festuca idahoensis Harley P. Chandler 1901-6-1 1366 Humboldt North Coast Ranges. Hupa Indian Reservation 304 Comment
  HSC71594  Festuca occidentalis M. A. Baker 1980-6-26 2404 Humboldt Near Sims Creek 610 Comment
  POM214838  Festuca occidentalis Victor Duran 1933-5-11 3410 Humboldt Van Duzen River, near Bridgeville. Comment
  UCD66132  Festuca occidentalis A. A. Beetle; G. L. Stebbins Jr. 1942-6-2 3466 Humboldt 2 miles west of Bridgeville, banks above Van Dusen River. Comment
  RSA126626  Festuca rubra H. L. Person 1932-5-11 s.n. Humboldt Near Arcata 0 Comment
  UC1103707  Festuca subulata Joseph P. Tracy 1913-6-20 4215 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC526846  Festuca subulata Joseph P. Tracy 1934-7-18 13457 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  UCD66433  Festuca subulata R. Tofsrud 1947-7-1 198 Humboldt Between Alder Point and Zenia. Comment
  UC1103709  Festuca subuliflora Joseph P. Tracy 1937-5-30 15306 Humboldt 5 mi n Blocksburg; Larrabee Creek 457 Comment
  UC53425  Festuca subuliflora Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5407 Humboldt Hubbards Station Comment
  UC682048  Festuca subuliflora G. L. Stebbins Jr. and G. L. Church 1941-5-27 3109 Humboldt Strong's Station, on Van Duzen River Van Duzen River Comment
  HSC40975  Fragaria X ananassa Linda M. Barker 1976-6-14 1590 Humboldt 3 mi. W of Arcata Comment
  SD39959  Fragaria chiloensis Charlotte M. Hoak 1931-7-14 2103 Humboldt Eureka, sand dunes on bar Comment
  UC183556  Fragaria vesca Joseph P. Tracy 1913-6-25 4340 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC457926  Fragaria vesca subsp. californica Doris K. Kildale 1927-3-20 2910 Humboldt Phillipsville, south fork of Eel River Comment
  UCD113269  Fragaria virginiana Gunter Staudt; H. Ahmadi 1989-5-15 313 Humboldt North of Trinidad along Highway, near Seawood Drive exit. Comment
  HSC72613  Frangula californica subsp. occidentalis J. P. Smith 1977-7-3 9261 Humboldt Six Rivers National Forest. FS Rd. 13N01, 3 mi. from its junction with Hwy. 36 549 Comment
  CAS-BOT-BC60000  Frangula purshiana C. B. Wolf 1931-8-30 2373 Humboldt E. side of Eureka on P. St., one block n. of Henderson St. 30 Comment
  SEINET516308  Frangula purshiana Vernon H. Oswald 1998-4-16 8914 Humboldt Elk Head, N end of Trinidad State Beach. 30 Comment
  POM130724  Frasera albicaulis var. nitida H. P. Chandler 1901-06 1486 Humboldt Klamath River. Comment
  JEPS44086  Fraxinus latifolia W. L. Jepson 1903-6-15 2205 Humboldt Briceland Comment
  UC249521  Fraxinus latifolia Joseph P. Tracy 1922-5-29 6060 Humboldt South Yager Creek Valley Northern Coast Ranges 762 Comment
  UC54925  Fraxinus latifolia Mrs. M. H. Manning 1902-4 Humboldt near Hupa Comment
  HSC100647  Galium Carl C. Marshall 76 Humboldt No data. Comment
  SEINET11117327  Galium anglicum Unknown 1916-1 4730 Humboldt Alder Point, 500 ft. Comment
  HSC19847  Galium aparine Elrid H. Spinas 1948-6-16 50 Humboldt Horse Mtn. Comment
  HSC32861  Galium aparine Thomas W. Nelson, James Nelson 1973-5-28 940 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC57438  Galium bifolium G. L. Clifton, Griswold 1979-7-26 10237 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2024 Comment
  HSC57329  Galium bolanderi Overton, Butler 1979-7-25 9822 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  UC35335  Galium bolanderi Chesnut and Drew 1888-7-21 Humboldt S. Fork Mt. Comment
  HSC41599  Galium bolanderi Thomas W. Nelson, Jane P. Nelson 1977-8-6 3705 Humboldt Above Alder Springs 1555 Comment
  UC1196105  Galium californicum subsp. californicum Joseph P. Tracy 1925-8-9 7228 Humboldt opposite Miranda; Salmon Creek 91 Comment
  UC1196117  Galium californicum subsp. californicum Joseph P. Tracy 1934-7-9 13337 Humboldt ridge 5 mi s Harris 762 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
  BLMAR206  Galium parisiense Jennifer Anthony-Wheeler 1996-7-9 206 Humboldt Pilots ridge., growing in warm, dry, rocky soil in understroy in mixed hardwood forest 1280 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
  UC175682  Galium porrigens Joseph P. Tracy 1912-7-26 3863 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC40955  Galium triflorum Linda M. Barker 1976-7-5 1649 Humboldt 3 mi. W of Arcata. Comment
  HSC57217  Galium triflorum Griswold, Butler 1979-7-12 7289 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  HSC58322  Galium triflorum Overton, Butler 1979-8-2 12619 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC76233  Galium triflorum Teresa Prendusi 1981-7-9 166 Humboldt Near Cedar Camp. 1268 Comment
  UC169000  Galium triflorum Joseph P. Tracy 1911-7-5 3314 Humboldt near its mouth Willow Creek (tributary of Trinity River); Northern Coast Ranges 243 Comment
  UC602538  Galium triflorum Joseph P. Tracy 1932-7-17 10654 Humboldt woods near Corral Prairie; Trinity Summit 1584 Comment
  UC562618  Gamochaeta ustulata Joseph P. Tracy 1936-5-29 14830 Humboldt 2 mi n Orick (on Bald Hills road) 152 Comment
  UC545824  Garrya elliptica H. E. Parks 1933-2 4287 Humboldt Trinidad Comment
  HSC72925  Garrya fremontii Gail Newton 1980-7-22 1679 Humboldt Near Devils Backbone 231 Comment
  JEPS66732  Garrya fremontii Joseph P. Tracy 1939-1-14 16184 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC668299  Garrya fremontii Joseph P. Tracy 1935-7-29 14342 Humboldt Trinity Summit; near ranger station 1828 Comment
  CAS-BOT-BC282615  Gastridium phleoides Henry M. Pollard 1944-9-17 s.n. Humboldt Near Orleans Comment
  CAS-BOT-BC58910  Gaultheria shallon Volney Rattan 1879-6-1 s.n. Humboldt unspecified Comment
  CHSC27317  Gaultheria shallon T. B. Devine 1977-8-20 458 Humboldt Kneeland Road, 1 mi n of Kneeland. 548 Comment
  HSC22529  Gaultheria shallon Jerry Parker 1968-10-26 197 Humboldt Big Lagoon County Park Comment
  HSC7805  Gaultheria shallon Dan O'Brien 1962-5-9 Humboldt 4 1/2 mi. E on Fickle Hill Rd. Comment
  SBBG25595  Gaultheria shallon E. R. Blakley 1966-8-17 6793 Humboldt Little Crk, Prairie Crk St Park, ca. 10 mi N of Orick 60 Comment
  UCD117455  Gaultheria shallon D. Sanchez-Mata 1996-6-28 s.n. Humboldt Blue Lake-Willow Creek. Lord-Ellis Summit. 560 Comment
  HSC97985  Gayophytum diffusum subsp. parviflorum Cara Witte 2007-7-11 502 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  UC562364  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-8-30 13046 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC14651  Genista monspessulana R. T. Forester 1963-4-23 12 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  CAS-BOT-BC217394  Gentiana affinis var. ovata L. R. Abrams 1916-7-20 6143 Humboldt Eureka Comment
  JEPS47047  Gentiana affinis var. ovata W. L. Jepson 1902-8-1 2134 Humboldt Loleta 60 Comment
  UC1173685  Gentiana calycosa Joseph P. Tracy 1939-8-16 16412 Humboldt Horse Mountain Northern Coast Ranges (serpentine formation) 1402 Comment
  RSA0028176  Geranium bicknellii var. bicknellii D. E. Anderson 1963-5-25 2497 Humboldt About 4 miles east of Petrolia. Comment
  UC1197404  Geranium dissectum Joseph P. Tracy 1911-7-5 3331 Humboldt near Mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  HSC8648  Geranium dissectum William J. Ferlatte 1963-5-17 51 Humboldt Waste place, near 11th and B St., Arcata Comment
  HSC35933  Gilia capitata subsp. capitata Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2026 Humboldt French Camp, Bald Hills Comment
  BLMAR597  Gilia millefoliata Jennifer Wheeler 2010-5-11 597 Humboldt Samoa Peninsula, Samoa Dunes Engangered Plant Protection Area 3 Comment
  HSC16988  Gilia millefoliata L. H. Myers 1963-5-13 14 Humboldt W of Lanpheres Rd., Mad River slough area Comment
  UC1051593  Gilia millefoliata Joseph P. Tracy 1948-6-12 18067 Humboldt sand dunes near Samoa (on Humboldt Bay); , near Samoa 6 Comment
  UC921140  Gilia millefoliata Joseph P. Tracy 1948-6-12 18067 Humboldt sand dunes near Samoa (on Humboldt Bay); , near Samoa 6 Comment
  UCD117850  Gilia millefoliata Linda M. Barker 1976-6-1 1549 Humboldt 3 miles west of Arcata. Comment
  UC602567  Githopsis specularioides Joseph P. Tracy 1932-6-17 10221 Humboldt Three Forks of Mad River North Coast Ranges 883 Comment
  HSC70404  Glyceria X occidentalis M. A. Baker 1980-6-7 1836 Humboldt Near Ammon Creek. 732 Comment
  HSC26157  Glyceria elata J. P. Smith, Steve Selva 1970-6-30 4131 Humboldt Comment
Read comments
Jan 25 2012
  HSC35857  Glyceria elata Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2059 Humboldt Beside Rd. 2S08 to Pine Mtn. Comment
  UC526906  Glyceria elata Joseph P. Tracy 1925-7-5 7170 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  UCD57077  Glyceria occidentalis Joseph P. Tracy 1942-6-2 17090 Humboldt Loleta. 9 Comment
  UCD66777  Glyceria occidentalis A. A. Beetle; J. P. Tracy, G. L. Stebbins Jr. 1942-6-2 3461 Humboldt Loleta Swamp, south of Eureka. Comment
  HSC70482  Glyceria striata Gail Newton 1980-7-20 1636 Humboldt Near Bell Swamps 1426 Comment
  RSA15558  Gnaphalium chilense var. confertifolium C. B. Wolf 1927-8-29 1223 Humboldt Seacoast, Devil's Gate, south of Cape Mendocino Comment
  HSC53977  Gnaphalium palustre Griswold, Butler 1979-7-11 7051 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  SBBG26798  Gnaphalium palustre H. E. and S. T. Parks -Jul-1937 24026 Humboldt Spruce Cove, Trinidad Comment
  UC582519  Gnaphalium palustre Joseph P. Tracy 1930-10-12 99211 Humboldt Eel River, Alton to Fortuna; Eel River 15 Comment
  UC164897  Gnaphalium palustre Joseph P. Tracy 1909-7-18 3024 Humboldt sand dunes of Ocean Beach; Northern Coast Region, , Humboldt Bay Comment
  HSC28074  Goodyera oblongifolia J. D. Ackerman, A. Montalvo 1973-8-20 114 Humboldt W slope of N Trinity Mtn., E of Hoopa Comment
  UC147895  Gratiola ebracteata Joseph P. Tracy 1908-6-7 2618 Humboldt Butler Valley Northern Coast Ranges, , Butler Valley (Mad River) 152 Comment
  HSC95525  Grindelia hirsutula Andrea Pickart 2002-7-19 184 Humboldt Arcata Marsh at Jolly Giant Creek mile .1 10 Comment
  RSA18609  Grindelia hirsutula Lyman Benson 1937-9-9 9305 Humboldt Coast, 2 miles S of Cape Mendocino. 6 Comment
  UC1347201  Grindelia hirsutula John Thomas Howell 1937-7-31 13720 Humboldt salt marsh bordering Humboldt Bay at Arcata Arcata (region of type locality) Comment
  UC581776  Grindelia hirsutula Joseph P. Tracy 1931-9-13 9669 Humboldt mouth of Eel River Eel River (along tidal sloughs) Comment
  BLMAR308  Grindelia stricta Jennifer Anthony-Wheeler 2002-7-1 308 Humboldt South Spit 6 Comment
  RSA638980  Grindelia stricta var. stricta R. F. Thorne, Percy C. Everett 1965-8-7 35204 Humboldt Samoa Peninsula. 0 Comment
  HSC58066  Hastingsia alba G. L. Clifton, Griswold 1979-8-1 11944 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  CAS-BOT-BC508213  Hastingsia alba Joseph P. Tracy 1926-6-20 7633 Humboldt Wet or seepy ground, serpentine formation, Horse Mountain 1463 Comment
  HSC22854  Helenium bigelovii Norman Dennis 1965-6-3 141 Humboldt Big Lagoon County Park, SW corner of Big Lagoon Comment
  UC582669  Helenium bigelovii Joseph P. Tracy 1930-7-16 8936 Humboldt wet meadow at McKay Camp; South Fork Mountain 1676 Comment
  CAS-BOT-BC306866  Helenium bolanderi Doris K. Kildale 1929-7-10 8398 Humboldt Big Lagoon Comment
  CAS-BOT-BC306872  Helenium bolanderi Dr. A. Kellogg; W. G. W. Harford 1868-1-1 469 Humboldt Unspecified Comment
  CAS-BOT-BC305848  Helminthotheca echioides Doris K. Kildale 1928-7-29 5918 Humboldt Bear River at Capetown Comment
  RSA11161  Hemizonia congesta C. B. Wolf 1927-8-29 1218 Humboldt Devils' Gate, S of Cape Mendocino Comment
  CAS-BOT-BC306180  Hemizonia congesta subsp. congesta Carl B. Wolf 1927-8-29 1218 Humboldt Seacoast, Devil's Gate, south of Cape Mendocino Comment
  CAS-BOT-BC306183  Hemizonia congesta subsp. congesta J. Clausen 1932-9-18 679 Humboldt 4 miles southwest of Capetown on the road to Petrolia 213 Comment
  UC204741  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1918-7-1 Humboldt 3 mi s point of Cape (sw slopes fronting the ocean); Northern Coast Ranges, Cape Mendocino 3 Comment
  JEPS40410  Hemizonia congesta subsp. tracyi W. L. Jepson 1902-7-1 1975 Humboldt at Berry's Ranch Redwood Creek; Hupa road Comment
  OBI12533  Hesperolinon micranthum Joseph P. Tracy 2011-7-6 3356 Humboldt Northern Coast Ranges. Mountain slopes along rd between Three crks and mouth of Willow crk Comment
  UC34985  Hesperolinon micranthum Hy-Am Pum July 1888 Humboldt Comment
  UC176961  Heterocodon rariflorum Joseph P. Tracy 1912-7-25 3822 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC195431  Heteromeles arbutifolia Joseph P. Tracy 1915-8-2 4664 Humboldt 3 mi above Carlotta (Yager Creek); Northern Coast Ranges, Yager Creek 91 Comment
  UC202750  Heterotheca oregona var. rudis Chesnut and Drew 1888-7-21 Humboldt S. Fork Mt. Comment
  UC1198856  Heuchera merriamii Joseph P. Tracy 1932-7-18 10715 Humboldt head of Brett Hole; Klamath Mountains, Trinity Summit 1828 Comment
  HSC20191  Heuchera micrantha D. E. Anderson 1962-5-1 2200 Humboldt 1 mi. W of Hoopa Comment
  HSC56073  Heuchera rubescens G. L. Clifton, Griswold 1979-7-31 11744 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  CAS-BOT-BC312391  Hieracium albiflorum Doris K. Kildale 1928-6-24 7078 Humboldt Redwood Creek at Berry's 289 Comment
  HSC67475  Hieracium albiflorum J. P. Smith, Steve Selva 1970-6-14 3819 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  RSA34312  Hierochloe occidentalis L. Larsen 1935-4-23 s.n. Humboldt Orleans Comment
  UC1191968  Hippuris vulgaris Malcolm A. Nobs and S. Galen Smith 1949-8-3 1191 Humboldt marsh & bog land at southern outskirts Eureka Comment
  HSC6597  Hirschfeldia incana Jerry Parker 1968-11-11 233 Humboldt S of Vista Point Comment
  CAS-BOT-BC280733  Holcus lanatus Thomas W. Nelson; Jane P. Nelson 1979-7-3 4959 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek roads 609 Comment
  UCD81679  Holcus lanatus Chuck Hughes 2009-6-18 99 Humboldt Near Arcata. NE corner of intersection of Old Samoa Road and Pacheco Road. 1 Comment
  SEINET8718745 Image available Holcus lanatus H. E. Parks, S. T. Parks 1943-1 24260 Humboldt Spruce Cove, Trinidad 61 Comment
  HSC41284  Holodiscus discolor Brad Klipfel 1974-7-23 476 Humboldt Horse Mtn. Comment
  HSC64166  Holodiscus discolor J. O. Sawyer, K. A. Sawyer 1979-6-24 3410 Humboldt Slopes alongside Aikens Creek. 366 Comment
  POM368001  Holodiscus discolor Patricia Wilder 1968-8-22 4420 Humboldt Coastal rain forest 7 miles S of Ferndale on Mattole Road, N of Cape Mendocino and Capetown, Mt. Range: Bear River Ridge; Drainage Area: Oil Creek to Pacific. 549 Comment
  UCSB24337  Holodiscus discolor var. discolor Tracy, Joseph 1936-8-7 Humboldt Trinity summit, 2 miles southeast of Devil's Hole Comment
  HSC10163  Hordeum brachyantherum D. J. McVean 1965-5-22 85 Humboldt In field W of Jackson Rd., 1/4 mi N of Samoa Blvd. Comment
  HSC38426  Hordeum brachyantherum D. E. Anderson, J. P. Smith 1971-6-14 - 1046 Humboldt Along railroad tracks at P.G.&E. power plant S of Eureka. Comment
  UC1103488  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1942-6-15 17126 Humboldt near Redcrest resort; Englewood 91 Comment
  UC526788  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1927-6-26 8208 Humboldt Stone lagoon 6 Comment
  UC38634  Hordeum marinum subsp. gussoneanum Harley P. Chandler 1901-6-1 1431 B Humboldt Klamath River North Coast Ranges, Klamath River 335 Comment
  UC50483  Hordeum marinum subsp. gussoneanum Joseph Burtt Davy 1899-6-8 5342 Humboldt Bell's Springs Comment
  JEPS44551  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1925-5-30 7025 Humboldt Laribee Valley; Northern Coast Ranges 701 Comment
  CAS-BOT-BC537898  Horkelia tridentata var. flavescens Alice Eastwood; John Thomas Howell 1937-6-23 4806 Humboldt Little Van Duzen River Comment
  HSC96952  Horkelia tridentata var. flavescens Whitney Meier, Elizabeth Kimbrough 2007-6-11 3 Humboldt Cold Springs Camp 11.9 mi. S of Hwy. 299 on USFS Rd. NF 1 Comment
  CAS-BOT-BC206076  Hosackia crassifolia Volney Rattan 1879-1-1 s.n. Humboldt Klamath Comment
  SD53242  Hosackia stipularis Darley F. Howe 1962-5-22 Humboldt 4.3 miles east of Orick on Bald Mountain Road 609 Comment
  HSC95387  Hydrocotyle ranunculoides Andrea Pickart 2002-7-19 186 Humboldt Arcata Marsh in Log Pond 10 Comment
  UC562599  Hydrophyllum occidentale Joseph P. Tracy 1933-7-11 12700 Humboldt Grouse Mountain; North Coast Ranges, Trinity Summit 1524 Comment
  UC24091  Hydrophyllum tenuipes W. C. Blasdale 1896-6-3 Humboldt Blue Lake Comment
  HSC13538  Hydrophyllum tenuipes Lincoln Constance, A. A. Beetle 1940-5-16 2611 Humboldt Valley of Van Duzen River, 5 mi. E of Carlotta 30 Comment
  HSC57100  Hypericum perforatum Overton, Butler 1979-7-25 9832 Humboldt Near Ammon Creek, close to the town of Willow Creek. 671 Comment
  HSC22968  Hypericum perforatum S. V. Thompson 1967-7-23 10 Humboldt Along Boulder Creek Comment
  UCD110388  Hypericum perforatum subsp. perforatum A. H. Murphy 1947-6-19 s.n. Humboldt Dobbins Creek bridge, on Alderpoint-Blocksburg road. Comment
  CAS-BOT-BC312869  Hypochaeris L. R. Abrams 1916-7-11 6045 Humboldt Mouth of Grizzly Creek on Van Duzon [Duzen] River Comment
  JEPS36532  Hypochaeris glabra Lincoln Constance 1934-5-24 639 Humboldt South fork Eel River; Bull Creek Region 121 Comment
  UC1069674  Hypochaeris radicata H. L. Person 1931-7-30 L.H. 25 Humboldt Fieldbrook Eureka Quad. Comment
  UCSB6709  Hypochaeris radicata Keator, Glenn 1958-6-18 Humboldt In the vicinity of Smith River (the town) Comment
  CAS-BOT-BC206840  Iliamna latibracteata Joseph P. Tracy 1938-8-14 16104 Humboldt Willow Creek Canyon, along Trinity Highway 762 Comment
  UC1197890  Ipomopsis aggregata Joseph P. Tracy 1932-7-17 10657 Humboldt at Corral Prairie Trinity Summit 1584 Comment
  UC1541562  Ipomopsis aggregata W. K. Parks July 1933 1409 Humboldt South Fork Mtn Comment
  HSC69580  Iris douglasiana R. Kalal 1980-6-3 5 Humboldt Along Fickle Hill Rd., 0.8 mi. E of its junction with 11th St. 189 Comment
  JEPS539  Iris douglasiana W. L. Jepson 1932-8-9 16543 Humboldt Bull Creek Comment
  HSC32383  Iris douglasiana Linda M. Barker 1974-5-11 185 Humboldt Redwood National Park, W of Bald Hills Rd., NW of Gans Prairie 366 Comment
  RSA0009453  Iris douglasiana Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  HSC100502  Iris macrosiphon Carl C. Marshall Jun 1885 28 Humboldt In the redwoods. Comment
  HSC36790  Iris purdyi Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-7-20 2052 Humboldt Beside FS Rd. 2S08 to Pine Mtn. Comment
  RSA135936  Iris purdyi Lee W. Lenz, E. K. Balls 1952-5-11 17192 Humboldt 3.2 miles northeast from Harris on road from Zenia and Alder-point to Garberville Comment
  SD90234  Iris purdyi Benjamin C. Stone 1952-6-23 142 Humboldt Dense redwood forest in Humboldt Redwoods State Park. Comment
  UC146222  Iris purdyi Joseph P. Tracy 1908-6-27 2684 Humboldt head of Little Laribee Creek; Northern Coast Ranges 914 Comment
  RSA298350  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-5-1 440 Humboldt 1.3 miles south of Hwy 96 on Ishi Pishi Road, west side of road, Orleans; aspect 52E 232 Comment
  UC673161  Iris tenax subsp. klamathensis Lincoln Constance and Reed C. Rollins 1942-5-12 2893 Humboldt 2 mi. n. Orleans (Klamath River); Klamath-Siskiyou Region, Klamath River 121 Comment
  HSC70403  Iris tenuissima M. A. Baker 1980-6-7 1835 Humboldt Near Ammon Creek 115 Comment
  HSC74329  Iris tenuissima M. A. Baker 1980-6-16 1958 Humboldt Near Onion Mtn. 1280 Comment
  HSC59440  Iris tenuissima Kenneth Clark 1979-5-16 307 Humboldt Tish Tang State Campground, 11 mi. N of Willow Creek on Hwy. 96 244 Comment
  UC667940  Isoetes howellii Joseph P. Tracy 1937-8-12 15650 Humboldt Snow Camp 1402 Comment
  POM185720  Isolepis cernua Joseph P. Tracy 1917-6-10 4821 Humboldt Eureka. 0 Comment
  RSA246917  Isolepis cernua Robert F. Thorne, Percy C. Everett 1965-8-7 35215 Humboldt Samoa Peninsula: near sea level Comment
Read comments
Sep 12 2018
  UC479412  Jaumea carnosa Marcus E. Jones, A. M. 1931-7-16 29118 Humboldt Arcata Comment
  CAS-BOT-BC101963  Juglans hindsii Henry M. Pollard 1947-8-30 s.n. Humboldt Along Klamath River nr. Wilson Creek, Orleans region Comment
  RSA340075  Juncus breweri Harold Lint 1964-4-1 C- 306 Humboldt Dry Lagoon State Park, Highway 101. Comment
  UC14897  Juncus bufonius J. P. Tracy 1900-5-27 805 Humboldt immediate vicinity Eureka 0 Comment
  UC726591  Juncus bufonius A. A. Heller 1923-7-10 13798 Humboldt between Scotia and Pepperwood; Eel River Comment
  UC183775  Juncus covillei var. obtusatus Joseph P. Tracy 1912-7-31 3915 Humboldt near Buck Mountain summit; Northern Coast Ranges 1219 Comment
  HSC71730  Juncus effusus subsp. pacificus M. A. Baker 1980-6-26 2450 Humboldt Near Sims Creek 610 Comment
  UC1152101  Juncus ensifolius Joseph P. Tracy 1927-8-28 8356 Humboldt near Boynton Prairie Comment
  UC14900  Juncus ensifolius J. P. Tracy 1901-7-29 1224 Humboldt immediate vicinity Eureka 0 Comment
  HSC40127  Juncus exiguus Thomas W. Nelson, James Nelson 1976-7-28 3075 Humboldt Between Alder Springs and road to Pine Mtn. 1524 Comment
  UC1152104  Juncus hesperius Joseph P. Tracy 1938-6-15 15938 Humboldt 2 mi e Carlotta 30 Comment
  UCSC000127  Juncus hesperius Unknown 1975-4-21 59 Humboldt 2 miles N.W. of Fortuna - Rohnerville Comment
  UC183768  Juncus occidentalis Joseph P. Tracy 1911-7-7 3369 Humboldt 3 mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UC183957  Juncus occidentalis Joseph P. Tracy 1909-7-31 3052 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  RSA183598  Juncus saximontanus D. E. Anderson 1965-9-5 4089 Humboldt Along Mad River, ca. 3 miles south of Blue Lake. Comment
  NY790278  Keckiella corymbosa J. P. Tracy 1912-7-26 3847 Humboldt Kneeland Prairie Comment
  HSC36460  Keckiella lemmonii Thomas W. Nelson, B. Reinhardt 1975-7-30 2108 Humboldt Beside Rd. out Whiting Ridge Comment
  BLMAR47  Koeleria macrantha Brad Barr June, 1982 47 Humboldt King range, HJ Comment
  UC552225  Lactuca biennis Joseph P. Tracy 1935-7-21 14118 Humboldt mouth Bremer Creek (near Willow Creek); Trinity River Valley 152 Comment
  UCD133521  Lactuca saligna Joseph P. Tracy 1947-9-14 17932 Humboldt Kneeland Prairie. 762 Comment
  UC127613  Lagophylla ramosissima Harley P. Chandler 1901-6-1 1467 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  UC1223224  Lapsana communis Joseph P. Tracy 1944-7-3 17482 Humboldt Graham's Peach Orchard, along road near old house, at Willow Creek Trinity River Valley, Willow Creek 152 Comment
  UC1223221  Lapsana communis Joseph P. Tracy 1949-7-4 18326 Humboldt intersection of Kneeland and Butter Valley roads (at Cameron Hill); Cameron Hill Comment
  UC1199124  Lasthenia californica subsp. californica Joseph P. Tracy 1932-6-19 10249 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 701 Comment
  UC166218  Lasthenia californica subsp. californica Joseph P. Tracy 1903-5-22 1882 Humboldt Alder Point Flat Northern Coast Ranges, Eel River 152 Comment
  HSC79382  Lasthenia californica subsp. macrantha Kenneth Clark 1981-5-24 1394 Humboldt Abalone Pt. 15 Comment
  SEINET11811255  Lasthenia chrysostoma J. P. Tracy 1947-1 17752 Humboldt Larrabee Valley 732 Comment
  UCD106234  Lathyrus japonicus var. maritimus B. Clark 1927-9-1 s.n. Humboldt Along R.R. track near Eureka. Comment
  UC495704  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1927-5-15 8042 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC709420  Lathyrus lanszwertii var. tracyi Joseph P. Tracy 1941-3-26 16843 Humboldt w of mouth of South Fork of Trinity River 304 Comment
  CHSC68555  Lathyrus littoralis Vernon H. Oswald 1997-4-29 8359 Humboldt Samoa Dunes Recreation Area at the south end of the North Spit separating Humboldt Bay from the ocean. 0 Comment
  UCSB15805  Lathyrus littoralis Breedlove, Dennis 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  RSA168909  Lathyrus polyphyllus Joseph P. Tracy 1951-6-16 19469 Humboldt Happy Camp Mountain. In Trinity Summit Range, 6 miles northeast of Hawkins Bar. On the Takilma-Happy Camp Road. 1280 Comment
  UC303182  Lathyrus polyphyllus Joseph P. Tracy 1923-6-22 6344 Humboldt Bald Mt. Northern Coast Ranges 914 Comment
  UC1222398  Lathyrus vestitus Joseph P. Tracy 1949-7-4 18327 Humboldt 2 mi e Kneeland (on the Butter Valley Road) 609 Comment
  UC931755  Lathyrus vestitus C. L. Hitchcock 1949-6-7 19083 Humboldt 0.5 mi s Pepperwood (along Highway 101) Comment
  HSC78611  Layia carnosa L. P. Janeway, Amy Eisenberg 1984-4-25 746 Humboldt On N Spit of Humboldt Bay, SE side of intersection of Samoa and Fairhaven roads, NE of the willow patch. 3 Comment
  RSA176928  Layia carnosa Peter H. Raven 1963-5-15 18370 Humboldt Lanphere Ranch just west of Mad River Slough; near Arcata Comment
  SEINET3374979 Image available Lemna minor Joseph P. Tracy 1932-8-21 10370 Humboldt Three Cabins Ranch; on E side of Mad River on W slope of Chaparral Mt. 457 Comment
  HSC36107  Lemna minor Neil D. Ledet 1973-11-29 7 Humboldt 16 mi. S of Ferndale, N side of Cape Town along county Rd., floating on ranch pond Comment
  UC672865  Lemna turionifera Joseph P. Tracy 1932-8-21 10370 Humboldt on w slope of Chaparral Mountain, on e side of Mad River, Three Cabins Ranch Mad River; Chaparral Mountain, , Three Cabins Ranch 457 Comment
  CHSC33097  Leontodon saxatilis subsp. saxatilis J. P. Smith 1971-10-6 4966 Humboldt Dunes at the end of Murray Road in McKinleyville. Comment
  HSC38941  Leontodon saxatilis subsp. saxatilis Linda M. Barker 1976-6-1 1562 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  SD87756  Leontodon saxatilis subsp. saxatilis F. W. Peirson 1926-7-13 7056 Humboldt Mad River, near Blue Lake Comment
  RSA226612  Lepidium campestre William J. Ferlatte, B. D. Rogers 1966-6-15 2109 Humboldt Larabee Valley. 762 Comment
  CHSC31922  Lepidium didymum M. S. Taylor 1980-10-9 3365 Humboldt Bed of Jacoby Creek, ca. 1/4 mi w of its jct with Arcata Rd, ca. 5 mi s of Arcata in Bayside. 15 Comment
  CAS-BOT-BC89518  Lepidium jaredii L. (Lorenzo Dow) Jared 1894-3-20 s.n. Humboldt East Arcata. Comment
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Mar 21 2021
  UC161582  Lepidium latipes Joseph P. Tracy 1902-6-3 1644 Humboldt near Harris (hill top at Spruce Grove); Northern Coast Ranges, Spruce Grove 914 Comment
  UC1116215  Lepidium nitidum Joseph P. Tracy 1948-5-31 17990 Humboldt Harris 762 Comment
  UC1116218  Lepidium strictum Joseph P. Tracy 1946-5-30 17540 Humboldt vicinity Carlotta 30 Comment
  HSC79326  Lessingia nemaclada D. K. Imper 1982-8-27 Humboldt 1.5 mi. S of junction with FS 2S05 on FS 8E05, Six Rivers National Forest. Comment
  UC581785  Leucanthemum vulgare Joseph P. Tracy 1937-6-23 15360 Humboldt along Mad River; Blue Lake Comment
  HSC5360  Leucanthemum vulgare Francis Winter 1960-4-19 Humboldt Samoa peninsula 5 miles W of Arcata. Comment
  JEPS5879  Lewisia leeana Joseph P. Tracy 1935-7-24 14200 Humboldt near Ranger Station; Trinity Summit 1828 Comment
  HSC102511  Lewisia nevadensis M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1496 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  SEINET200641 Image available Leymus mollis subsp. mollis Joseph P. Tracy 1912-7-7 3744 Humboldt Eureka. Comment
  UCD87707  Leymus triticoides A. H. Murphy 1951-6-13 63 Humboldt Eel River at Fort Seward. Comment
  JEPS17503  Ligusticum apiifolium W. L. Jepson 1902-6-30 1959 Humboldt on Hupa Rd. near Redwook Creek Comment
  JEPS14253  Ligusticum californicum Joseph P. Tracy 1937-8-12 15633 Humboldt Snow Camp 1402 Comment
Read comments
May 25 2012
  HSC56332  Ligusticum grayi Overton, Butler 1979-8-2 12702 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC176689  Lilium columbianum Joseph P. Tracy 1913-7-13 4356 B Humboldt Patrick's Point; Northern Coast Ranges 30 Comment
  CAS-BOT-BC508391  Lilium columbianum Doris K. Kildale 1927-6-26 3596 Humboldt Patrick's Point Comment
  HSC58337  Lilium kelleyanum Overton, Butler 1979-8-2 12646 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC130635  Lilium kelloggii Albert Vollmer 1949-7-1 3 Humboldt 3 miles east of the old Eureka-Arcata Road on the Kneeland road Comment
  HSC33260  Lilium kelloggii A. M. Montalvo, J. D. Ackerman 1974-8-1 399 Humboldt 1.0 mi. W of Kneeland Post Office on Greenwood Heights Rd. Comment
  UC302156  Lilium kelloggii Joseph P. Tracy 1926-6-13 7593 Humboldt Liscom HIll; Northern Coast Ranges 457 Comment
  SEINET3992215  Lilium pardalinum Unknown 1948-9-5 18196 Humboldt Trinity Summit, head of Little Hors-Linto Creek 1372 Comment
  UC666950  Lilium pardalinum Joseph P. Tracy 1938-7-4 15994 Humboldt Valley of South Yager Creek 762 Comment
  HSC57043  Lilium pardalinum subsp. pardalinum Overton, Butler 1979-7-24 9687 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC57704  Lilium pardalinum subsp. pardalinum G. L. Clifton, Griswold 1979-7-25 10947 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC58108  Lilium pardalinum subsp. pardalinum G. L. Clifton, Griswold 1979-8-1 12043 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  CAS-BOT-BC132959  Lilium rubescens A. M. Vollmer; L. Beane 1951-6-11 135 Humboldt Bridgeville Comment
  JEPS99290  Lilium rubescens H. and M. Dearing 1939-6-27 3730 Humboldt near Dinsmore (Van Duzen River) 730 Comment
  HSC35754  Lilium washingtonianum subsp. purpurascens Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1998 Humboldt French Camp, Bald Hills. Comment
  HSC100568  Limnanthes douglasii Carl C. Marshall Jun 1887 68 Humboldt Damp soils throughout Humboldt. Comment
  SEINET3818261  Limnorchis leucostachys Unknown 1937-1 Humboldt Comment
  UC906691  Linanthus androsaceus Joseph P. Tracy 1943-5-23 17424 Humboldt e of Redwood Creek (Berry's Mt. on Trinity Highway); Berry's Mt. 487 Comment
  JEPS58445  Linanthus harknessii Joseph P. Tracy 1933-7-25 12832 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  CDA6371  Linaria vulgaris E. C. Whitney 1963-9-5 Humboldt Fortuna. 0 Comment
  CAS-BOT-BC416392  Linnaea borealis subsp. longiflora H. M. Pollard 1942-9-12 s.n. Humboldt Near Orleans Comment
  HSC56469  Linnaea borealis subsp. longiflora Griswold, Butler 1979-7-12 7292 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  RSA20849  Linum angustifolium Carl B. Wolf 1937-6-18 8889 Humboldt Table Bluff between Humboldt Bay and Eel River. 30 Comment
  HSC15803  Linum bienne Jack Rockwell 1962-4-29 78 Humboldt Lone Star Jct. Comment
  UC169892  Linum bienne Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5685 Humboldt North Coast Ranges, Hoopa Mountain Hoopa Mountain; North Coast Ranges, Hoopa Mountain Comment
  HSC55228  Listera convallarioides G. L. Clifton, Griswold 1979-8-2 12428 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1442907  Listera cordata Theodore F. Niehaus 1970-4-14 914 Humboldt ca. 5 mi w Yager-Bridgeville road (on Redwood House road) Comment
  HSC73409  Listera cordata var. nephrophylla Bruce Potter, Leslie Sieburth, Susan Ahrens 1981-4-19 653 Humboldt 229 Comment
  UC1196365  Lithocarpus densiflorus Joseph P. Tracy 1948-8-15 18137 Humboldt 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  UC484048  Lithocarpus densiflorus Carl B. Wolf 1930-10-29 Humboldt 4 mi s Honeydew P.O. (Old Coast Route) 304 Comment
  CAS-BOT-BC430611  Lithophragma affine Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  UC667092  Lithophragma campanulatum Joseph P. Tracy 1934-4-15 13179 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley, at Willow Creek 152 Comment
  HSC5650  Logfia gallica J. P. Tracy 1935-5-30 13914 Humboldt Trinity River Valley at Willow Creek 152 Comment
  HSC77904  Logfia gallica L. P. Janeway, Paul Wilson 1984-5-25 826 Humboldt On the N Spit of Humboldt Bay; on BLM lands near the Coast Guard Station 5 Comment
  UC1103160  Lolium multiflorum Joseph P. Tracy 1948-6-13 18043 Humboldt 7 mi nw Blocksburg (Larrabee Creek); Larrabee 304 Comment
  HSC10304  Lolium perenne W. F. Nickel 1965-5-16 Humboldt N Arcata next to the Humboldt Motor Hotel. Comment
  HSC10311  Lolium perenne C. B. Wolf 1927-8-29 1215 Humboldt Devil's Gate, S of Cape Mendocino. Comment
  HSC40251  Lolium perenne Linda M. Barker 1976-7-5 1646 Humboldt 3 mi. W of Arcata. Comment
  SEINET200586 Image available Lolium perenne J. P. Tracy 1937-6-6 15331 Humboldt Ferndale 15 Comment
  SEINET5527019 Image available Lomaria spicant Hicks, Carpenter 1977-7-12 Humboldt Orick Comment
  RSA254759  Lomatium californicum Thomas W. Nelson, James Nelson 1973-5-28 954 Humboldt McKeown Ranch north of Dinsmore. Comment
  HSC65515  Lomatium ciliolatum var. ciliolatum M. A. Baker 1980-6-7 1776 Humboldt Near Brush Mtn. 1128 Comment
  HSC98833  Lomatium ciliolatum var. ciliolatum Cara Witte 2007-5-31 142 Humboldt Off National Forest 1. Near Board Camp Mountain. Approximately 4 miles south of Brays Opening and 1/2 mile west of road. 1510 Comment
  UC162334  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1911-7-6 3345 Humboldt along rd. between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 762 Comment
  UC1222609  Lomatium dissectum Joseph P. Tracy 1950-6-15 18805 Humboldt 7 mi N of Harris (Jenk's Ranch) Comment
  HSC35753  Lomatium macrocarpum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1997 Humboldt French Camp, Bald Hills. Comment
  HSC97412  Lomatium macrocarpum R. Spellenberg 1965-6-14 1126 Humboldt Kneeland Airport about 5 mi. S of Kneeland Comment
  HSC98775  Lomatium macrocarpum Cara Witte 2008-6-9 695 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1509 Comment
  UC1167734  Lomatium macrocarpum Peter Raven with R. Snow 1958-7-20 13637 Humboldt 2.0 mi. s. junction of Titlow Hill and Friday Ridge rds. (near Grouse Mt.) Comment
  UC1222607  Lomatium macrocarpum Joseph P. Tracy 1951-6-24 19537 Humboldt atop ridge near Ashfield Butte (Kneeland Prairie); Kneeland Prairie 1676 Comment
  UC154251  Lomatium macrocarpum Joseph P. Tracy 1908-6 2835 Humboldt n.w. slope Buck Mt. 1219 Comment
  UC906644  Lomatium triternatum var. triternatum Joseph P. Tracy 1942-6-23 17228 Humboldt 1 mi. w. Box Camp (Trinity Summit); Trinity Summit 1219 Comment
  HSC32917  Lomatium utriculatum Thomas W. Nelson, James Nelson 1973-5-28 965 Humboldt McKeown Ranch N of Dinsmore Comment
  OBI8842  Lomatium utriculatum Tracey Call, Viola Call 1964-6-19 2271 Humboldt 1 mi north of Harris P.O. and ca 3-1/2 mi south of Harris Jct Comment
  JEPS12868  Lonicera ciliosa Joseph P. Tracy 1921-6-19 5836 Humboldt viz. ridge n Willow Creek (between Willow and Campbell Creeks); Northern Coast Ranges, Brannan Mountain 944 Comment
  JEPS13668  Lonicera conjugialis W. L. Jepson July 16 - 23, 1902 2036 Humboldt Trinity Summit 2133 Comment
Read comments
Apr 8 2012
  BLMAR175  Lonicera hispidula Donald Hazlett 1994-6-7 175 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC240471  Lonicera hispidula Alice Eastwood; John Thomas Howell 1937-6-22 4733 Humboldt Near Alder Point Comment
  HSC60071  Lonicera hispidula var. vacillans M. A. Baker 1978-5-20 563 Humboldt W side of the Klamath River along Hwy. 96 Comment
  UC1239551  Lonicera hispidula var. vacillans Joseph P. Tracy 1942-6-15 17132 Humboldt near Redcrest resort; Englewood 91 Comment
  UC1239554  Lonicera hispidula var. vacillans Joseph P. Tracy 1911-7-9 3469 Humboldt near mouth Willow Creek; Northern Coast Ranges, Trinity River 152 Comment
  CAS-BOT-BC240667  Lonicera interrupta Carl D. Duncan 1920-9-20 s.n. Humboldt Hoopa Valley Comment
  UCD137380  Lonicera involucrata Roman Gankin 1965-8-6 547 Humboldt 1.3 miles south of Samoa, Samoa Peninsula. Comment
  CHSC13520  Lonicera involucrata var. ledebourii A. R. Morrison 1974-4-27 Humboldt Scattered in open and partially shaded areas along coast ca. 2 mi. N of Trinidad. Comment
  CDA4163  Lotus corniculatus Gordon Leppig 1997-6-19 444 Humboldt Big Lagoon County Park, Big Lagoon Bog. Comment
  RSA46827  Lotus formosissimus Doris K. Kildale 1926-5-26 1642 Humboldt Old Fortuna Road. Comment
  UC1197286  Lotus purshianus var. purshianus Joseph P. Tracy 1908-6 2885 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC98269  Lotus unifoliolatus var. unifoliolatus D. E. Anderson 1962-7-14 2256 Humboldt About 3 mi. E of Kneeland Comment
  UC1223410  Lotus yollabolliensis Joseph P. Tracy 1937-7-29 15586 Humboldt near McKay Camp (near top of South Fork Mountain); South Fork Mountain 1676 Comment
  UC314622  Ludwigia palustris Joseph P. Tracy 1926-8-12 7765 Humboldt near the S. Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  CAS-BOT-BC198268  Lupinus Wm. Bridge Cooke 1946-6-11 17370 Humboldt Roadside 1 mi. N of Eureka Comment
  CAS-BOT-BC201187  Lupinus David Keil 1983-7-2 17319 Humboldt Ca. 4 mi SE of SR 299 along Titlow Hill Rd below Horse Mountain Summit Road Comment
  CAS-BOT-BC201189  Lupinus Volney Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  UC503012  Lupinus adsurgens Joseph P. Tracy Jul 16 1930-Jul 19 1930 9059 Humboldt near Blake lookout, South Fork Mountain along summit; Northern Coast Ranges, South Fork Mountain 1737 Comment
  UC1776380  Lupinus albicaulis R. Spellenberg 1990-7-9 Humboldt Extreme E edge county, 7 air mi. WNW of Hyampom, 42 mi S of Calif Hwy 299 and Berry Summit on USFS Rd. 1, ca 1 mi S of Blake Mtn. on South Fork Mountain. 1767 Comment
  RSA406972  Lupinus albicaulis var. albicaulis H. M. Pollard 1947-8-9 s.n. Humboldt Roadside west of Orleans Comment
  HSC32521  Lupinus andersonii Thomas W. Nelson, James Nelson 1973-5-28 955 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC31465  Lupinus arboreus Steve Selva, Roger Jensen 1974-8-28 89 Humboldt Approx. 10 mi. S of Arcata on the sand dunes of the Samoa Peninsula Comment
  SD39025  Lupinus arboreus Edith A. Purer 1932-7-30 4682 Humboldt South of Orick, sand dunes Comment
  UCD106638  Lupinus arboreus Logan Farm Adviser 1921-6-21 s.n. Humboldt Eureka. Comment
  UCSB26618  Lupinus arboreus Havlik, Neil 1968-8-21 Humboldt Along U.S. Highway 101; west of Arcata Airport 6 Comment
  SEINET10544235  Lupinus arboreus Mary Susan Taylor 1990-8-22 Taylor 6070 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  RSA246780  Lupinus arboreus var. arboreus Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-9 35328 Humboldt Clam Beach County Park: along highway. 3 Comment
  HSC33762  Lupinus bicolor A. Montalvo 1975-5-24 277 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  SEINET6932627  Lupinus bicolor Wanda P. Vestal, A. G. Vestal 1937-6-19 s.n. Humboldt Terrace west of Eel River, 2 miles west of Gaberville. Comment
  JEPS82142  Lupinus constancei Thomas W. Nelson and Jane P. Nelson 1982-7-9 7079 Humboldt Mt. Lassic (Signal Peak) and saddle to e North Coast Ranges, Blockburg Quad., Mt. Lassic (Signal Peak; Blocksburg Quadrangle on Mt. Lassic (Signal Peak), Humboldt Co. 1767 Comment
  UC157019  Lupinus formosus Joseph P. Tracy 1904-7-4 2113 Humboldt Bucksport; region about Humboldt Bay, Bucksport 0 Comment
  HSC76189  Lupinus latifolius Overton, Butler 1979-7-24 9779 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  UC1223288  Lupinus latifolius var. latifolius Joseph P. Tracy 1936-7-5 15036 Humboldt top Grouse Mountain; top of Grouse Mountain 1524 Comment
  OBI12876  Lupinus luteolus Carl B. Wolf 1937-8-12 9211 Humboldt North Coast Range, 20 mi N of Bridgeville on rd to Kneeland 457 Comment
  UC1949190  Lupinus nanus Barbara Ertter with Thomas J. Delendick 1987-5-16 6923 Humboldt Vista Point just W of Berry Summit on Hwy 299, ca 15 airmiles E of Arcata; S-facing slope Comment
  JEPS65420  Lupinus polyphyllus W. L. Jepson 1902-6-24 1927 Humboldt Eureka to Arcata; Eureka to Arcata Comment
  UC865174  Lupinus polyphyllus var. polyphyllus Eliz. Parsons Hawver June 1915 Humboldt Carlotta Comment
  HSC89503  Lupinus rivularis M. Roantree 1985-5-30 76 Humboldt E side of Trinidad Head along dirt road Comment
  UC1197257  Lupinus rivularis Joseph P. Tracy 1917-5-26 4785 B Humboldt Bucksport Bluff Northern Coast Ranges, Bucksport Bluff (at Eureka) 0 Comment
  UCD170581  Lupinus rivularis Gordon Leppig 1998-4-7 731 Humboldt Rt. 299. 396 Comment
  UC1488739  Lupinus tracyi Marc Baker 1980-7-22 3060 Humboldt Salmon Mountain; Salmon Mt. Quad., near Salmon Mountain 287 Comment
Read comments
Jul 7 2009
  RSA165867  Lupinus variicolor Philip A. Munz 1963-6-19 24528 Humboldt Patrick's Point. 30 Comment
  CAS-BOT-BC436574  Luzula cascadensis Doris Kildale 1931-5-10 10690 Humboldt Snow Camp Comment
  HSC56453  Luzula comosa Griswold, Butler 1979-7-12 7228 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC56454  Luzula comosa Griswold, Butler 1979-7-12 7231 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC14165  Luzula comosa S. R. Johnson 1965-4-30 47 Humboldt 0.5 mi. N of Luffenholtz Beach Comment
  HSC77385  Luzula comosa L. P. Janeway 1983-5-29 321 Humboldt Along Jolly Giant Creek, E of HSU campus 61 Comment
  UC3007  Luzula parviflora Harley P. Chandler May, 1901 1163 Humboldt Humboldt Bay North Coast Ranges, Humboldt Bay 30 Comment
  UC103678  Luzula subsessilis Joseph P. Tracy 1918-5-5 4925 Humboldt sand dunes of Ocean Beach at Humboldt Bay; Northern Coast Region, Ocean Beach at Humboldt Bay Comment
  HSC77926  Lycopodium clavatum L. P. Janeway 1984-3-14 715 Humboldt Arcata Community Forest, at edge of access road, NW-facing slope. 229 Comment
  UC1745150  Lycopodium clavatum Clare T. Golec 2000-6-14 Humboldt Along the V-4 line on the lowerslopes of the South Fork Little River 243 Comment
  UC503062  Lycopodium clavatum Joseph P. Tracy 1932-8-13 10341 Humboldt in woods around swamp 3 mi e Trinidad; Northern Coast Region 152 Comment
  JEPS63270  Lycopus uniflorus Joseph P. Tracy 1925-10-18 7284 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  CHSC26464  Lysichiton americanus J. Detzer 1977-4-8 4 Humboldt S end of Patricks Point State Park, ca. .2 mi w of Hwy. 101 and 5 mi n of Trinidad. 60 Comment
  HSC96513  Lysichiton americanus Gordon Leppig 1999-4-15 1114 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  POM87675  Lysichiton americanus Le Roy Abrams, Rimo C. Bacigalupi 8277 Humboldt Big Lagoon. South of Orick. Comment
  HSC35502  Lysichiton americanus J. Burns 1962-4-18 Humboldt Eureka, Togo Rd. Comment
  JEPS42815  Lysichiton americanus Lincoln Constance 1934-6-18 894 Humboldt near South Fork Rail Road Station and Post Office (border of North Dyerville Flat, South Fork Eel River); Bull Creek Region, South Fork Eel River Comment
  HSC89989  Lythrum hyssopifolia Leonel Arguello 1989-6-10 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, at the end of the Fernstrom-Root trail, along W border of the salt marsh. Comment
  CAS-BOT-BC342805  Madia elegans S. K. Harris; J. P. Tracy; H. S. Yates 1936-6-17 3483 Humboldt Highway about one mile west of Bridgeville Comment
  HSC70362  Madia elegans Gail Newton 1980-6-7 124 Humboldt Near Brush Mtn. 1128 Comment
  SEINET11810577  Madia elegans J. P. Tracy 1947-1 17827 Humboldt Horse Mountain 1067 Comment
  HSC71593  Madia gracilis M. A. Baker 1980-6-26 2402 Humboldt Near Sims Creek 610 Comment
  UC176779  Madia gracilis Joseph P. Tracy 1908-6 2694 Humboldt opposite Buck Mountain; Valley of Van Duzen River 762 Comment
  HSC37658  Madia gracilis R. Sutherland 1976-8-19 5 .19876 Humboldt 259 Comment
  UC176465  Madia gracilis Joseph P. Tracy 1913-6-13 4109 Humboldt Dinsmore's Ranch; Buck Mountains, Valley of Van Duzen River 762 Comment
  POM362198  Madia minima Thomas W. Nelson, Jane P. Nelson 1977-7-4 3608 Humboldt Along road north from Alder Spring 1555 Comment
  CAS-BOT-BC343591  Madia sativa J. Clausen 1932-9-18 678 Humboldt 11 miles south of Ferndale on the road to Capetown Comment
  HSC37970  Madia sativa Peter Sorensen 1976-7-15 Humboldt Woodley Island Comment
  SD88360  Maianthemum dilatatum Darley F. Howe 1972-5-7 Humboldt Trinidad. Comment
  UC13726  Maianthemum dilatatum W. C. Blasdale 1896-5-31 Humboldt Eureka Comment
  CAS-BOT-BC508504  Maianthemum dilatatum Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  CAS-BOT-BC508520  Maianthemum dilatatum Ella Dales Cantelow 1936-5-18 1354 Humboldt 5 miles north of Orick Comment
  POM87668  Maianthemum dilatatum Le Roy Abrams, Rimo C. Bacigalupi 8300 Humboldt Near northern county line Comment
  SEINET12047101  Maianthemum dilatatum F. H. Utech 1972-1 72 -014 Humboldt within city limits of Arcata, Humboldt State University Forest, W of campus 183 Comment
  CAS-BOT-BC511458  Maianthemum racemosum subsp. amplexicaule Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway Comment
  HSC98152  Maianthemum stellatum T. W. Beck 1963-4-13 19 Humboldt Camp Bauer, Korbel, near Mad River Comment
  RSA407376  Maianthemum stellatum Lyman Benson 1929-7-19 1859 Humboldt Dyerville to Matole River. Comment
  CAS-BOT-BC347408  Malacothrix floccifera Don Hagar 1957-6-25 89 a Humboldt Brush Mountain, 3.5 miles south-southwest of Willow Creek 792 Comment
  HSC96601  Malus fusca Gordon Leppig 2005-4-8 2207 Humboldt N Spit Swamp, edge of swamp 100 m S of Samoa bridge 4 Comment
Read comments
Jun 15 2020
  UC154233  Malus fusca J. P. Tracy 1901-6-23 1173 Humboldt immediate vicinity Eureka 0 Comment
  HSC97635  Marah oregana Cara Witte 2007-6-4 181 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC1197775  Marah oregana Joseph P. Tracy 1923-6-20 6313 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  RSA189731  Marah oregana Noel Holmgren, James L. Reveal 1966-6-8 2661 Humboldt Coast Range, east of Arcata, 1.5 miles south of Korbel. 274 Comment
  HSC1869  Medicago polymorpha P. W. Shields 1956-4-14 Humboldt HSU campus Comment
  UC552691  Melica aristata Joseph P. Tracy 1935-7-14 14075 Humboldt Grouse Mountain; North Coast Ranges 1524 Comment
  UC1103761  Melica fugax Joseph P. Tracy 1913-6-17 4193 Humboldt near Buck Mountain summit; Northern Coast Ranges 1676 Comment
  CAS-BOT-BC240328  Melica harfordii Dana York; Kim Hayler 2012-5-18 3105 Humboldt Six Rivers National Forest, near Somes Bar, 585 meters SE of the confluence of the Klamath and Salmon rivers, E and above highway 96 215 Comment
  HSC26614  Melica harfordii J. P. Smith, Steve Selva 1970-6-14 3848 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  HSC58679  Melica subulata G. L. Clifton, Griswold 1979-8-2 12213 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UCD88643  Melica subulata A. H. Murphy 1951-5-15 s.n. Humboldt 3/4 mile south of South Fork on McCann Road. Comment
  HSC98074  Melilotus albus Cara Witte 2007-7-12 529 Humboldt Ammon Ridge Road. Approximately 2 miles southeast of intersection with 5N10. 1353 Comment
  HSC25761  Melilotus officinalis Jana Kattenhorn 1970-10-14 45 Humboldt Big Lagoon Comment
  RSA83450  Mentha canadensis F. W. Peirson 1926-7-12 7044 Humboldt Humboldt County: Orick Comment
  UC577383  Mentha pulegium Joseph P. Tracy 1933-8-22 12985 Humboldt near Loleta; near Loleta 6 Comment
  UC577384  Mentha pulegium Joseph P. Tracy 1936-8-2 15078 Humboldt Orick 15 Comment
  HSC12719  Mentha pulegium C. E. Fellows 1970-10-31 377 Humboldt Rio Dell, bank of Eel River, 1/2 mi. E of bridge on N side of town Comment
  JEPS42754  Mentzelia dispersa Joseph P. Tracy 1937-7-24 15521 Humboldt Trinity Summit, Devil's Hole 1676 Comment
  HSC37227  Menyanthes trifoliata Anonymous 1976-5-14 Humboldt NW of McClellan Mtn. Comment
  SEINET3410193 Image available Micranthes ferruginea Joseph P. Tracy 1935-7-24 14186 Humboldt Trinity Summit; Rocky exposed places, Near Ranger Station 1829 Comment
  UC164793  Microseris bigelovii Joseph P. Tracy 1911-5-30 3203 Humboldt Bucksport Northern Coast Region, Humboldt Bay Region 0 Comment
  UC180181  Microseris borealis Joseph P. Tracy 1914-9-6 4611 Humboldt peat bog near Seidell Ranch (between High Prairie and Snow Camp); Northern Coast Ranges, Bald Mountain 1219 Comment
  RSA167429  Microseris laciniata subsp. leptosepala Joseph P. Tracy 1947-7-9 17828 Humboldt Horse Mountain, lower slopes 1128 Comment
  HSC89450  Mimulus aurantiacus var. aurantiacus P. A. Daly 1984-5-8 15 Humboldt Trinidad Head 61 Comment
  UCSB10373  Mimulus aurantiacus var. aurantiacus Parks, H.; Parks, S. 1951-6-1 Humboldt Along bay shore near landing, Trinidad Comment
  UC1115824  Mimulus breweri Joseph P. Tracy 1939-7-9 16337 Humboldt Snow Camp 1402 Comment
  HSC37232  Mimulus cardinalis Lon Hall 1975-6-20 404 Humboldt About 2 mi. N from Shelter Cove Rd. on Horse Mtn. Rd., along Bear Creek, from streamside up to unused dirt logging road above creek 488 Comment
  UC147879  Mimulus dentatus J. P. Tracy 1900-5-30 833 Humboldt immediate vicinity Eureka 0 Comment
  RSA430202B  Mimulus dentatus J. P. Smith 1973-5-26 6821 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC1196790  Mimulus douglasii Joseph P. Tracy 1921-4-24 5468 Humboldt Phillipsville Northern Coast Ranges, South Fork of Eel River 121 Comment
  HSC102597  Mimulus guttatus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1584 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC103078  Mimulus guttatus Sydney Carothers 2014-6-12 11 Humboldt Six Rivers National Forest, Lassics Botanical Area, Red Lassic. Near upper pond and rustic camp site. 1706 Comment
  UCR45415  Mimulus guttatus Kenneth Clark 1980-5-10 659 Humboldt Western Beach, Point Delgada 15 Comment
  RSA167241  Mimulus guttatus Joseph P. Tracy 1950-6-8 18745 Humboldt Near Capetown. Cape Ridge. One mile east of Cape Mendocino. 152 Comment
  CDA41715  Mimulus kelloggii K. Esau 1935-4-23 s.n. Humboldt Ft. Seward. 0 Comment
  UC162580  Mimulus layneae Joseph P. Tracy 1911-7-8 3443 Humboldt near mouth Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  HSC55736  Mimulus moschatus G. L. Clifton, Griswold 1979-7-26 10233 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  UC582442  Mimulus pilosus Joseph P. Tracy 1925-11-1 7300 Humboldt Shively; on river bar 60 Comment
  HSC97942  Mimulus pulsiferae Cara Witte 2007-6-20 304 Humboldt National Forest 1. 1/4 mile north of intersection with 5N09. 1434 Comment
  HSC4056  Minuartia douglasii D. E. Anderson 1965-5-15 3695 Humboldt 5 mi. N of Hoopa on Bald Hills Rd. Comment
  HSC40009  Minuartia nuttallii subsp. gregaria Thomas W. Nelson, Jane P. Nelson 1976-7-1 2905 Humboldt Along ridge N of Bear Creek. 1463 Comment
  HSC97557  Minuartia nuttallii subsp. gregaria Cara Witte 2007-6-1 164 Humboldt Horse Mountain Botanical Area. Along Forest Service 6N38. 1311 Comment
  HSC20242  Mitella caulescens D. E. Anderson 1967-6-7 4350 Humboldt Along Puter Creek, tributary to Mad River, about 3 mi. S of Blue Lake Comment
  HSC56219  Mitella caulescens G. L. Clifton, Griswold 1979-8-2 12242 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC25572  Mitella diversifolia J. O. Sawyer 1971-6-15 2383 Humboldt S of Lipps Camp along Horse Linto Creek 1372 Comment
  CAS-BOT-BC433034  Mitella ovalis Victor Duran 1933-5-11 3404 Humboldt Six miles west of Bridgeville, Van Duzen River Comment
  HSC99385  Moehringia macrophylla K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 34 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA43889  Monardella odoratissima subsp. glauca H. M. Pollard 1948-8-4 s.n. Humboldt Orleans Mountain 1524 Comment
  HSC98019  Monardella sheltonii Cara Witte 2007-7-9 457 Humboldt Forest Service Road 4N32. 1.4 mile north of intersection with 4N32B. 1413 Comment
  CAS-BOT-BC220257  Monardella sheltonii Harley P. Chandler 1901-6-1 1522 Humboldt Klamath River 457 Comment
  CAS-BOT-BC220259  Monardella sheltonii Henry M. Pollard 1948-7-19 s.n. Humboldt Between Orleans and Van Fleet ranch Comment
  RSA0022803  Monardella villosa subsp. subserrata L. R. Abrams 1922-6-25 8221 Humboldt Camp Cemi [?], north Garberville. Comment
  JEPS62396  Monardella villosa subsp. villosa W. L. Jepson 1932-7-28 16433 Humboldt Dyerville 88 Comment
  JEPS17205  Montia howellii Joseph P. Tracy 1921-4-24 5431 Humboldt South Fork of Eel River, Phillipsville Flat Eel River; Northern Coast Ranges, Phillipsville Flat, Eel River 91 Comment
  JEPS43192  Montia howellii Joseph P. Tracy 1916-5-7 4686 Humboldt Northern Coast Region, Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC445155  Montia parvifolia Doris K. Kildale 1926-5-27 1695 Humboldt Yager Creek, near mouth Comment
  HSC44733  Morella californica Maralyn O'Meara 1971-10-25 54 Humboldt S side of Big Lagoon Comment
  CAS-BOT-BC260573  Muhlenbergia filiformis Joseph P. Tracy 1932-7-14 10544 Humboldt Klamath Mountains. At Corral Prairie 1524 Comment
  JEPS70787  Myosotis discolor Joseph P. Tracy 1925-5-10 6963 Humboldt near Hydesville; North Coast Ranges 91 Comment
  JEPS70789  Myosotis discolor Lincoln Constance 1934-6-3 803 Humboldt along n. side of Redwood Hwy. at Dyerville; Bull Creek Region, S. Fork Eel R. Comment
  HSC34644  Myosotis sylvatica John Palmer 1975-4-9 295 Humboldt 40 yds. E of intersection of 17th at Bayview St., Arcata Comment
  CAS-BOT-BC101671  Myrica californica Joseph P. Tracy 1931-4-12 9332 Humboldt Dows Prairie 60 Comment
  POM280267  Myrica californica Lyman Benson 1930-7-18 2191 Humboldt Shively, seaward north coast Mt. range, Eel River. 46 Comment
  UC275529  Myrica californica Joseph P. Tracy 1924-1-20 6596 Humboldt near Samoa (around Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  HSC77911  Myriophyllum spicatum Randy Nyman 1978-10-22 Humboldt Fish Lake 549 Comment
  RSA10034  Nassella lepida Joseph P. Tracy 1933-5-20 12247 Humboldt Mattole Valley, near Petrolia 152 Comment
  HSC64121  Nasturtium officinale J. P. Smith 1973-5-26 6787 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  UC908512  Navarretia atractyloides Joseph P. Tracy 1925-7-12 7206 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC907810  Navarretia atractyloides Joseph P. Tracy 1927-8-7 8307 Humboldt Willow Creek Schoolhouse Trinity River Valley, Willow Creek 152 Comment
  HSC45289  Navarretia capillaris Brad Klipfel 1973-6-10 293 Humboldt E face of Grogan's Hole, N Trinity Mtn. area Comment
  UC1197893  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1933-7-25 12866 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  HSC17144  Navarretia pubescens William J. Ferlatte, B. D. Rogers 1966-6-15 2098 Humboldt E of Bridgeville on Hwy. 36 671 Comment
  UC133716  Navarretia pubescens Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5461 Humboldt Fruitland North Coast Ranges Comment
  JEPS70462  Navarretia squarrosa W. L. Jepson 1921-8-11 9416 Humboldt Big Lagoon Humboldt Coast Comment
  UCD48697  Navarretia squarrosa H. E. Parks; S. T. Parks 1947-9-1 24442 Humboldt Trinidad, Spruce Cove, Humboldt County. 76 Comment
  UCR30859  Navarretia squarrosa A. C. Sanders 1981-8-6 2308 Humboldt Russ Park, City of Ferndale 46 Comment
  JEPS70491  Navarretia tagetina Joseph P. Tracy 1916-6-19 4709 Humboldt Forks of Dobbyn Creek Northern Coast Ranges 182 Comment
  HSC96266  Nemophila menziesii var. atomaria M. Lindquist, C. Riley 2005-6-10 7 Humboldt Cold Spring Camp, 7.4 mi. S of Hwy. 299 on NF 1 1375 Comment
  UC562586  Nemophila menziesii var. atomaria Joseph P. Tracy 1927-4-17 7903 Humboldt 274 Comment
  RSA21087  Nemophila menziesii var. menziesii Carl B. Wolf 1937-6-19 8915 Humboldt North Coast Range, 3 miles west of Little Van Duzen River at summit of grade - Dinsmores to Bridgeville. 762 Comment
  HSC32882  Nemophila parviflora Thomas W. Nelson, James Nelson 1973-5-28 934 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC71171  Nemophila parviflora Thomas W. Nelson 1977-5-30 3416 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  HSC73127  Nemophila parviflora M. A. Baker 1980-5-18 1284 Humboldt Near Black Mtn. 1006 Comment
  HSC76196  Nemophila parviflora Overton, Butler 1979-7-24 9799 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  UCR37589  Nemophila pedunculata L. P. Janeway 1983-4-16 234 Humboldt Near the old Hwy 299 on W side of Berry Summit 823 Comment
  JEPS12382  Nicotiana quadrivalvis Lincoln Constance 1934-6-18 896 Humboldt border North Dyerville Flat (near South Fork Railroad Station and P.O.); South Fork Eel River, Bull Creek Region Comment
  UC1196162  Nicotiana quadrivalvis Joseph P. Tracy 1940-10-17 16769 Humboldt 2 to 5 mi e South Fork (along Eel River); Eel River 45 Comment
  CAS-BOT-BC60546  Noccaea fendleri subsp. californica Doris K. Kildale 1926-3-21 1581 Humboldt Kneeland Prairie. 853 Comment
  HSC6968  Noccaea fendleri subsp. californica D. E. Anderson 1963-5-19 2465 Humboldt Comment
  HSC47951  Noccaea fendleri subsp. glauca Brad Klipfel 1974-5-27 387 Humboldt Horse Mtn. Comment
  CAS-BOT-BC60564  Noccaea fendleri subsp. glauca Lincoln Constance; Reed C. Rollins 1942-5-12 2887 Humboldt Klamath-Siskiyou Region. Klamath River 7 miles northeast of Weitchpec. 121 Comment
  HSC97976  Noccaea fendleri subsp. glauca Cara Witte 2007-7-5 423 Humboldt National Forest 1. 1.5 miles southeast of Forest Service Road 5N09. 1578 Comment
  HSC22510  Notholithocarpus densiflorus var. densiflorus D. E. Anderson 1963-9-1 2805 Humboldt Near Kneeland 732 Comment
  HSC31494  Notholithocarpus densiflorus var. densiflorus Steve Selva, Roger Jensen 1974-8-27 83 Humboldt Along Hwy. 299, approx. 10 mi. E of Blue Lake Comment
  HSC54589  Notholithocarpus densiflorus var. densiflorus Overton, Butler 1979-7-24 9657 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  OBI14330  Notholithocarpus densiflorus var. densiflorus H. E. McMinn 1931-6-27 2542 Humboldt Summit above Weitepp; T & K river Comment
  HSC99078  Notholithocarpus densiflorus var. echinoides Cara Witte 2008-7-25 940 Humboldt Forest Service Road 5N10. Approximately 1.5 miles north of intersection with Forest Service Road 5N10C. 1319 Comment
  HSC59483  Nuttallanthus texanus M. A. Ericksen 1979-4-29 242 Humboldt 0.4 mi. N of Coast Guard Station, Samoa Peninsula. Comment
  UCD124038  Nuttallanthus texanus Linda M. Barker 1976-6-1 1550 Humboldt Lanphere-Christensen Dunes, 3 miles west of Arcata. Comment
  CAS-BOT-BC142253  Oemleria cerasiformis Alice Eastwood 1943-6-11 19876 Humboldt State Azalea Grove Comment
  HSC38297  Oemleria cerasiformis Thomas W. Nelson 1976-3-22 2276 Humboldt Beside Eureka Muni. Golf Course Comment
  HSC82314  Oemleria cerasiformis Thomas W. Nelson, Linda M. Barker 1977-6-3 3386 Humboldt Floodplain of Mad River at S end of Mad River Bridge. 53 Comment
Read comments
May 7 2013
  RSA178545  Oemleria cerasiformis Joseph P. Tracy 1950-4-20 18618 Humboldt Buck Mountain, lower foothills of its northwest slope. 2 miles west of Dinsmore's. 762 Comment
  HSC39449  Oenanthe sarmentosa Linda M. Barker 1976-8-24 1686 Humboldt 3 mi. W of Arcata Comment
  CDA38490  Oenanthe sarmentosa Tario 1932-10-7 s.n. Humboldt [no further data] 0 Comment
  POM224765  Oenothera glazioviana P. A. Munz 1936-8-13 14384 Humboldt 7 miles east of Arcata. Comment
  HSC95443  Oenothera wolfii D. K. Imper 1986-9-1 Humboldt S of Trinidad, Hwy. 101, across from Clam Beach 5 Comment
  UCD106955  Oenothera wolfii D. Wiesendanger; F. Randall 1926-8-1 1544 Humboldt Near Arcata. Comment
  CAS-BOT-BC349969  Oreostemma alpigenum var. andersonii Doris K. Kildale 1925-8-16 1195 Humboldt Trinity Summit 1828 Comment
  CAS-BOT-BC499672  Orobanche californica subsp. californica Edward Lee 1934-8-17 1152 Humboldt East shore of Big Lagoon, 35 mi N of Eureka 3 Comment
  JEPS14225  Orogenia fusiformis Joseph P. Tracy 1932-7-15 10595 Humboldt ridges e. of Corral Prairie Trinity Summit 1828 Comment
  RSA523835  Orthocarpus faucibarbatus var. albidus Gordon H. True Jr. 1936-5-12 475 Humboldt 2 miles S of Eureka. 15 Comment
  HSC99532  Orthocarpus imbricatus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 196 Humboldt Near North Trinity Mtn and Water Dog Lakes, Six Rivers National Forest. 1826 Comment
  UC582573  Orthocarpus imbricatus Joseph P. Tracy 1937-7-29 15571 Humboldt near McKay Camp South Fork Mountian (South Fork Mountain); South Fork Mountain 1676 Comment
  POM299483  Orthocarpus pusillus C. C. Harris, S. K. Harris 1942-6-18 1283 Humboldt 1 mile north and 3 miles west of Chalk Mountain. 665 Comment
  CHSC97962  Osmorhiza berteroi Kaylea Eickhoff; Cara M. Witte 2005-6-10 7 Humboldt Coldspring Camp, 7.4 miles south of Hwy. 299 on NF1. UTM 0439771, 4520563. 1370 Comment
  JEPS15910  Osmorhiza berteroi W. L. Jepson 1932-7-26 16419 Humboldt Bull Creek Comment
  UC642235  Osmorhiza berteroi Joseph P. Tracy 1930-7-17 9018 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  CDA38481  Osmorhiza berteroi Kaylea Eickhoff, Cara M. Witte 2005-6-1 7 Humboldt Coldspring Camp, 7.4 mi. south of Hwy. 299 on NF1. Comment
  UC642277  Osmorhiza occidentalis Joseph P. Tracy 1933-7-26 12906 Humboldt Grouse Mountain 1630 Comment
  UCR275113  Oxalis articulata Charity A. Hartshorn 2016-5-14 38 Humboldt Arcata Community Forest 244 Comment
  HSC47502  Oxalis oregana Sheila Logan 1978-4-10 28 Humboldt McKinleyville, foot of Hiller Ave. at Ocean Rd., near Pacific ocean and Mad River 46 Comment
  HSC95156  Packera bolanderi var. bolanderi Gordon Leppig 2002-6-27 1763 Humboldt Grizzly Creek State Park; 300 m NW of campground on trailside above Grizzly Creek 100 Comment
  SEINET200360 Image available Paeonia brownii Joseph P. Tracy 1938-6-13 15920 Humboldt Grouse Mountain at 'Cold Springs 1430 Comment
  SEINET12011449  Paeonia californica E. A. York 1990-1-10 2704 Humboldt USGS Redwood Field Station, Arcata Comment
  UC187238  Panicum capillare Joseph P. Tracy 1908-6 2929 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CDA2147  Panicum miliaceum T. R. Haig 1975-8-27 Humboldt Korbel. 0 Comment
  RSA10048  Panicum miliaceum Joseph P. Tracy 1931-9-7 9639 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC1145035  Panicum oligosanthes var. scribnerianum Joseph P. Tracy 1950-8-20 19324 Humboldt 8 mi below Orleans; Klamath River near Slate Creek 121 Comment
  CDA15537  Parentucellia viscosa G. F. Hrusa 1998-7-5 14705 Humboldt Klamath Ranges; Hwy 299, N side at summit of pass W of Willow Creek. Comment
  BLMAR697  Paxistima myrsinites Jennifer Wheeler 2011-5-24 697 Humboldt Lacks Creek, Pine Ridge/Stormy saddle road junction 975 Comment
  HSC20928  Pedicularis densiflora R. A. Rasp 1964-4-25 33 Humboldt 2.5 mi. E of Willow Creek off of Hwy. 299 Comment
  HSC102005  Pedicularis groenlandica M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 906 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  SEINET11723019  Pellaea andromedifolia E. A. York 1990-1-10 2701 Humboldt USGS Redwood Field Station, Arcata Comment
  HSC39931  Pellaea brachyptera J. O. Sawyer 1970-6-25 2294 Humboldt 1646 Comment
  UC1299764  Pellaea brachyptera Freed W. Hoffman 1949-7-15 3007 Humboldt e slope Mule Slide (Mt Lassic area a little s of Blue Ridge); Mt Lassic area Comment
  HSC74185  Penstemon anguineus M. A. Baker 1980-7-23 3138 Humboldt Near Orleans Mtn. 1859 Comment
  RSA43896  Penstemon anguineus H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1372 Comment
  UC577414  Penstemon anguineus Joseph P. Tracy 1936-7-5 15035 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  JEPS27375  Penstemon anguineus H. W. Grinnell 1932-7-19 33 Humboldt McKay Camp South Fork Mt. 1676 Comment
  SEINET7719718  Penstemon corymbosus Chesnut, Drew 1888-7-10 Humboldt Jarnigan's Comment
  HSC70524  Penstemon deustus Gail Newton 1980-7-15 1587 Humboldt Near Sims Mtn. 1311 Comment
  NY604551  Penstemon laetus var. sagittatus J. P. Tracy 1933-7-25 12827 Humboldt Horse Mountain 1432.6 Comment
  SEINET11262166  Penstemon laetus var. sagittatus Thomas Nelson, Jane Nelson; James Nelson 1975-6-14 1905 Humboldt Growing on north side of Pine Mountain.; 0 Comment
  HSC56231  Penstemon newberryi subsp. berryi Walter Overton 1979-8-1 12307 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1402 Comment
  HSC63245  Penstemon newberryi var. berryi M. A. Baker 1979-6-28 948 Humboldt NE side near summit of Packsaddle Ridge just N of the most E tip of the N fork of Mill Creek Comment
  HSC99527  Penstemon newberryi var. berryi K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 191 Humboldt Near North Trinity Mtn and Water Dog Lakes, Six Rivers National Forest. 1826 Comment
  JEPS26260  Penstemon newberryi var. berryi Joseph P. Tracy 1933-7-16 12786 Humboldt South Fork Mountain, near McKay Camp Northern Coast Ranges 1676 Comment
  JEPS85630  Penstemon newberryi var. berryi W. L. Jepson July 16 - 23, 1902 2107 Humboldt Trinity Summit 2133 Comment
  HSC79535  Pentagramma triangularis Kenneth Clark 1980-6-14 693 Humboldt On Greywacke outcrop, N fork Dead Man's Gulch 91 Comment
  RSA0060250  Pentagramma triangularis H. S. Logsdon 1964-5-16 s.n. Humboldt 3.0 mi SE of Bayside on Jacoby Creek Rd. Comment
  RSA0094699  Pentagramma triangularis Ira L. Wiggins 1957-6-21 14139 Humboldt On E side of road, 1 mi. S of Garberville. Comment
  CAS-BOT-BC71619  Pentagramma triangularis subsp. triangularis Ira L. Wiggins 1957-6-21 14139 Humboldt E side of road, 1 mi. S of Garberville Comment
  UC1389969  Perideridia kelloggii T. I. Chuang and B. G. Briggs 1963-4-10 5087 Humboldt 17 mi se Bridgeville (along stream bank) Comment
  HSC98799  Perideridia oregana Cara Witte 2007-7-11 511 Humboldt National Forest 1. Approximately 1 mile south of intersection with 5N01. Near Spike Buck Mountain. 1591 Comment
  CAS-BOT-BC413712  Persicaria hydropiper Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC419195  Persicaria maculosa Henry M. Pollard 1946-9-1 s.n. Humboldt Near Wilson Creek, Orleans region Comment
  HSC6051  Petasites frigidus var. palmatus D. E. Anderson 1962-3-18 1942 Humboldt Jacoby Creek Comment
  CDA20465  Petrorhagia dubia P. Haggard 2003-9-15 PDR 1285905 Humboldt Northwestern California; Klamath River near Orleans. 0 Comment
  BLMAR423  Phacelia bolanderi Jennifer Wheeler 2007-9-5 423 Humboldt Red Mountain, oil drum road near culvert 1219 Comment
  HSC63847  Phacelia heterophylla M. A. Baker 1979-6-27 917 Humboldt Comment
  HSC57205  Phacelia mutabilis Griswold, Butler 1979-7-12 7160 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  UC175504  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1912-6-9 3666 Humboldt Alton Northern Coast Region 30 Comment
  UC562568  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1935-5-25 13829 Humboldt Blocksburg 518 Comment
  RSA10051  Phalaris californica Joseph P. Tracy 1925-6-7 7085 Humboldt On Lord Ellis Road, on Bald Mountain 610 Comment
  UC1103764  Phalaris californica Joseph P. Tracy 1934-8-6 13562 Humboldt n side of Mad River near bridge on Trinity Highway 5 mi ne Arcata; North Coast Ranges, n side of Mad River 30 Comment
  CAS-BOT-BC76565  Philadelphus lewisii Doris K. Kildale 1927-7-3 3634 Humboldt Willow Creek Flat 152 Comment
  UC666825  Philadelphus lewisii Joseph P. Tracy 1937-6-20 15355 Humboldt ten mi up stream from mouth; Bear River 152 Comment
  HSC58664  Phleum alpinum G. L. Clifton, Griswold 1979-8-1 12026 Humboldt Near High Spring, close to the town of Hoopa. 1798 Comment
  UCD89305  Phleum alpinum Don Hagar 1957-8-6 s.n. Humboldt Jackson Hole, west slope of the Trinity Summit area. 1645 Comment
  CAS-BOT-BC250883  Phleum pratense Doris K. Kildale 1926-6-27 2202 Humboldt Laribee Valley 701 Comment
  HSC99494  Phleum pratense K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 154 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
  UC1145045  Phleum pratense Joseph P. Tracy 1948-8-8 18089 Humboldt Iaqua; near the school house 609 Comment
  HSC102017  Phlox adsurgens M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 918 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  RSA122919  Phlox adsurgens H. S. Yates 1936-6-22 5849 Humboldt 4 miles northeast of Bald Mountain Comment
  SEINET12279173  Phlox adsurgens H. P. Chandler 1901-1 1534 Humboldt Klamath River 427 Comment
  HSC83091  Phyllospadix torreyi Geo. W. Burtchett 1965-7-29 Humboldt Palmer's Point 0 Comment
  HSC35934  Physocarpus capitatus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2027 Humboldt French Camp, Bald Hills. Comment
  RSA172348  Physocarpus capitatus Robert F. Thorne 1957-9-2 19000 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC1198698  Physocarpus capitatus Joseph P. Tracy 1912-7-4 3721 Humboldt near Hydesville 60 Comment
  CAS-BOT-BC78200  Picea sitchensis W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  RSA0116907  Picea sitchensis Lyman Benson 1949-9-4 14188 Humboldt Bishop Pine Lodge, 5 miles North of Trinidad. Mt. Range: North Coast Ranges. 15 Comment
  HSC104094  Pinguicula macroceras Monica Rodriguez, William A. Worley 2015-3-21 25 Humboldt Along South Fork Rd, 8.9 mi. from 199 Redwood Hwy. Comment
  HSC12720  Pinus contorta C. E. Fellows 1970-10-7 374 Humboldt McKinleyville 0.25 mi. W of end of Murray Rd. near dunes Comment
  HSC1480  Pinus contorta J. R. Kahl 1962-4-13 15 Humboldt 1 mi. N of Samoa, 1,200 yds. from ocean Comment
  UC72494  Pinus contorta subsp. contorta H. P. Chandler 1905-5-5 Humboldt Eureka Comment
  UCR143016  Pinus muricata Robert M. Specht 1977-11-20 1190 Humboldt North Coast, [near Candy Mtn. SE of Patrick's Point] vicinity of Hwy 101 and Georgia-Pacific's A-line road 183 Comment
  CAS-BOT-BC79031  Pinus ponderosa Doris K. Kildale 1927-5-5 3108 Humboldt Elk Ridge Comment
  UC1196925  Pinus ponderosa Joseph P. Tracy 1926-6-27 7678 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  UC1488747  Piperia elegans J. D. Ackerman 1974-8-13 405 Humboldt ca 2 mi n Manila (between sand dunes and Mad River Slough) Comment
  UC14940  Piperia elegans H. P. Chandler Jun 1901 Humboldt Hupa North Coast Ranges 152 Comment
  JEPS14836  Pityopus californicus Virginia P. Fox 1919-7-13 Humboldt Bald Mt. Comment
  CAS-BOT-BC227991  Plagiobothrys Doris Kildale 1931-5-10 10565 Humboldt Snow Camp Comment
  HSC75440  Plagiobothrys hispidulus J. O. Sawyer 1980-7-18 3594 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  SEINET3152905  Plagiobothrys nothofulvus N. Dennis 1965-6-11 114 Humboldt About 1/4 miles S and 1 mile E of the juction of Berry Ridge Road and the Eureka-Bridgeville county road, along Ashfield Ridge Road. About 5 miles SE of Kneeland. 792 Comment
  UC708093  Plagiobothrys reticulatus C. V. Piper 1921-5-22 5011 Humboldt Eureka Comment
  UC1222211  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-15 17137 Humboldt n side South Fork Eel River (Myers, 10 mi s Dyerville); , Myers Comment
  UC1222214  Plagiobothrys reticulatus Joseph P. Tracy 1942-6-15 17142 Humboldt Miranda South Fork Eel River, Miranda 121 Comment
  JEPS60976  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1914-5-30 4486 Humboldt Hydesville 60 Comment
  UC1222202  Plagiobothrys scouleri Joseph P. Tracy 1949-6-20 18315 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC1196143  Plantago erecta Joseph P. Tracy 1919-4-27 5133 Humboldt opposite Eureka (Ocean Beach at Samoa); Humboldt Bay, Samoa, Ocean Beach Comment
  HSC12018  Plantago major Wilbur Peterson 1970-10-28 93 Humboldt 1 mi. W of Blue Lake near R/R crossing Comment
  SJSU11079  Plantago maritima H. T. Harvey 1977-7-6 608 Humboldt S Spit, Humboldt Bay Comment
  JEPS7158  Plantago maritima var. californica Joseph P. Tracy 1927-6-26 8219 Humboldt Stone Lagoon 6 Comment
  HSC48856  Platanthera dilatata var. leucostachys Brad Klipfel 1973-7-15 215 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC40132  Platanthera dilatata var. leucostachys Thomas W. Nelson, James Nelson 1976-7-28 3083 Humboldt Between Alder Springs and road to Pine Mtn. 1524 Comment
  HSC55028  Platanthera sparsiflora Overton, Butler 1979-7-31 11452 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  CAS-BOT-BC91633  Platystemon californicus Alice Eastwood; John Thomas Howell 1937-6-23 4807 Humboldt Little Van Duzen River. Comment
  CAS-BOT-BC91639  Platystemon californicus Tom Craig 1941-6-29 s.n. Humboldt Samoa, near Eureka. Comment
  UC1196295  Platystemon californicus Joseph P. Tracy 1935-5-25 13871 Humboldt Fort Seward 106 Comment
  CDA24588  Platystemon californicus E. Cohen 2002-4-15 21 Humboldt Eureka. Comment
  UC1239576  Plectritis congesta Joseph P. Tracy 1922-4-30 6018 Humboldt near Willow Creek (Northern Coast Ranges, Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  SEINET14400441  Plectritis congesta Unknown 1938-6-11 719 d Humboldt Humboldt County Comment
  HSC96230  Plectritis congesta subsp. brachystemon Kaylea Eickhoff, Cara M. Witte 2005-6-3 2 Humboldt 19.3 mi. S of Hwy. 299 on NF1 1240 Comment
  CAS-BOT-BC458164  Pleuricospora fimbriolata Doris K. Kildale 1927-8-7 3858 Humboldt Lawrence Creek 609 Comment
  HSC102147  Pleuropogon refractus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1054 Humboldt Patterson Meadows 1555 Comment
  HSC99458  Pleuropogon refractus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 112 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
  RSA167306  Pleuropogon refractus Joseph P. Tracy 1951-6-26 19560 Humboldt Halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road) Comment
  UC1145107  Pleuropogon refractus Joseph P. Tracy 1939-7-9 16334 Humboldt Snow Camp 1402 Comment
  UCD90579  Poa bolanderi A. H. Murphy 1951-6-25 68 Humboldt Snow Camp Meadows, ca. 8 miles e.n.e. of Kneeland. Comment
  HSC73248  Poa bulbosa M. A. Baker 1980-5-18 1312 Humboldt Near Black Mtn. 1006 Comment
  HSC10677  Poa confinis J. W. Johnson 1962-4-14 1250 Humboldt Arcata, Christenson Farm, Samoa Peninsula. Comment
  UC525624  Poa confinis H. E. Parks and Joseph P. Tracy 1927-4-24 7947 Humboldt Eureka; North Coast Ranges 9 Comment
  SEINET10822289  Poa confinis Joseph P. Tracy 1905-4-30 Tracy 278 Humboldt Sand dunes of Ocean Beach. Comment
  HSC46978  Poa douglasii J. P. Smith, Thomas W. Nelson 1977-6-30 9223 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  UC1145115  Poa douglasii Joseph P. Tracy 1947-7-3 17766 Humboldt mouth of Little River 6 Comment
  UC34126  Poa howellii Joseph Burtt Davy Jun 8 1899-Jun 1 1901 5360 Humboldt Harris Comment
  RSA183645  Poa kelloggii D. E. Anderson 1965-5-6 3622 Humboldt 4.8 miles west of bridge over North Fork of Mad River, along Hw. 299. Alder bench below highway backslope Comment
  HSC90698  Poa macrantha Gail Newton 1982-6-5 3576 Humboldt Elk River Wildlife Area, Eureka. Comment
  RSA55251  Poa macrantha W. A. Silveus 1938-7-6 2916 Humboldt Stinson beach Comment
  HSC58823  Poa pratensis G. L. Clifton, Griswold 1979-8-2 12279 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC33745  Poa pratensis subsp. pratensis Joseph Burtt Davy 1899-7-30 6178 Humboldt Ferndale Comment
  HSC99415  Poa trivialis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 64 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
  UC1145118  Poa trivialis Joseph P. Tracy 1950-6-8 18723 Humboldt Bear Beaver Ridge 609 Comment
  OBI13588  Pogogyne zizyphoroides Joseph P. Tracy 1946-5-30 17544 Humboldt Carlotta. Open flat by old Strong's District School House, 5 mi E of town Comment
  CAS-BOT-BC232887  Polemonium carneum Carl B. Wolf 1937-6-17 8881 Humboldt Big Lagoon, S side at W of Redwood Highway 6 Comment
  CAS-BOT-BC232889  Polemonium carneum Doris K. Kildale 1926-3-20 1535 Humboldt Big Lagoon Comment
  UC275346  Polygala californica Joseph P. Tracy 1923-6-20 6333 Humboldt Briceland Northern Coast Ranges, Briceland 304 Comment
  RSA144208  Polygonum coccineum Peter H. Raven 1961-8-22 16575 Humboldt Chileno Valley Comment
  UC55506  Polygonum davisiae Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5806 Humboldt Trinity Summit North Coast Ranges Comment
  HSC55262  Polygonum douglasii Overton, Butler 1979-8-2 12600 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  JEPS51269  Polygonum douglasii Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  UC672963  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1933-8-30 13042 A Humboldt Grouse Mountain 1524 Comment
  UC672964  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1930-6-21 8779 Humboldt Larrabee Valley 731 Comment
  HSC55062  Polygonum minimum G. L. Clifton, Griswold 1979-7-31 11624 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC55101  Polygonum minimum G. L. Clifton 1979-7-31 11832 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC17519  Polygonum paronychia D. B. Bader 1963-3-1 19 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101 Comment
  HSC17520  Polygonum paronychia R. T. Forester 1963-3-21 31 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  UC1713712  Polygonum parryi Joseph P. Tracy 1908-6 2932 Humboldt Buck Mountain Northern Coast Ranges (nw slope, ridge near water) 914 Comment
  HSC1102  Polypodium californicum Francis Winter 1960-4-24 Humboldt 1.0 mi. N of Redwood Creek Ranch 396 Comment
  HSC33651  Polypodium californicum Margaret Weatherwax 1975-6-26 7 Humboldt Road from Korbel to Maple Creek, 2 mi. SW of Korbel Comment
  HSC95652  Polypodium calirhiza Andrea Pickart 2002-4-5 39 Humboldt Lanphere Dunes 15 Comment
  RSA689963  Polypodium scouleri May N. Ackley 1936-8-15 375 Humboldt Patrick s Point Comment
  CAS-BOT-BC233074  Polypogon interruptus Joseph P. Tracy 1927-7-16 8260 Humboldt Eureka 60 Comment
  RSA53785  Polypogon interruptus Henry M. Pollard 1946-8-10 s.n. Humboldt South of Klamath River and east of Perch Creek, Orleans region. Comment
  CAS-BOT-BC237457  Polypogon viridis Joseph P. Tracy 1926-7-4 7697 Humboldt Trinity River Valley, near the South Fork Comment
  UC1440055  Polystichum Danin & H. G. Baker 1960-9-2 663 Humboldt Bull Creek-Honeydew Rd. Comment
  UC1440058  Polystichum californicum Danin & H. G. Baker 1960-8-13 597 Humboldt ca. 2 mi n Dyerville (High Rock, along Ave. of Giants, w side Eel River) Comment
  CAS-BOT-BC76664  Polystichum munitum Doris K. Kildale 1926-7-22 2414 Humboldt Metropolitan, woods near Canyon Park. Comment
  HSC1150  Polystichum munitum J. W. Johnson 1962-3-9 1181 Humboldt Along Lanphere Lane, 150 ft. from gate, Samoa Peninsula Comment
  HSC79147  Polystichum munitum C. J. Thomas 1984-9-25 119 Humboldt In Redwood forest immediately behind HSU fieldhouse 79 Comment
  POM305537  Polystichum munitum Henry J. Ramsey, Henry J. Ramsey 1939-10-13 834 Humboldt Highway 299 in mountains. Comment
  SEINET11722267  Polystichum munitum C. S. Kaut 2000-1 2 Humboldt Trinidad Comment
  UC492234  Populus trichocarpa Joseph P. Tracy 1932-4-24 9801 Humboldt South Fork of Eel River between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  HSC59104  Potamogeton natans Clark L. Miller 1979-5-24 6154 Humboldt Clam beach ponds off Hwy. 101 N of McKinleyville Comment
  UCD149951  Potamogeton richardsonii William Anderson; H. Mc. 1964-8-5 s.n. Humboldt Freshwater Lagoon. Comment
  CHSC68558  Potentilla anserina subsp. pacifica Vernon H. Oswald 1997-4-29 8349 Humboldt Shorebird Loop Trail between the trailhead and Lond Pond, Humboldt Bay NWR. Along the trail. 0 Comment
  HSC18734  Potentilla anserina subsp. pacifica R. E. Hafenfeld 1965-5-9 13 Humboldt Near Squashan Cr. near Gold Bluff Beach Rd. Comment
  HSC96466  Potentilla anserina subsp. pacifica Gordon Leppig 1997-8-3 638 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  HSC102139  Potentilla glandulosa subsp. glandulosa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1043 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  UC183755  Potentilla gracilis var. gracilis Joseph P. Tracy 1912-7-26 3875 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC303161  Potentilla palustris Joseph P. Tracy 1924-7-13 6727 Humboldt Big Lagoon; Northern Coast Region, Big Lagoon 6 Comment
  HSC15464  Prosartes hookeri D. E. Anderson 1965-5-15 3691 Humboldt About 7 mi. N of Hoopa on Bloody Camp Prairie Rd. Comment
  HSC15459  Prosartes hookeri D. E. Anderson 1965-4-28 3554 Humboldt Rd. leading S on E side of creek, Freshwater County Park Comment
  HSC15463  Prosartes hookeri D. E. Anderson 1965-5-1 3576 Humboldt On Bluff Creek Rd. 4-5 mi. W of junction with Hwy. 96 Comment
  HSC12222  Prosartes smithii Gary J. Stebbins 1970-5-17 80 Humboldt Along Jolly Giant Creek, 2.7 mi. up from HSC dorms 76 Comment
  SEINET12044820  Prosartes smithii Unknown 1933-1 3413 Humboldt Dyerville, South Fork of Eel River Comment
  SEINET12050388  Prosartes smithii F. H. Utech 1988-1 88 -021 Humboldt 3.5 mi N of Phillipsville & 1.5 mi S of Miranda along Avenue of the Giantes (alt US 101) to Miranda 85 Comment
  SEINET13947063 Image available Prunella vulgaris W. J. Ferlatte, B. D. Rogers 1966-1 2093 Humboldt Near Bridgeville; T30N, R3E, SEC11 Comment
  HSC23488  Prunella vulgaris subsp. lanceolata R. A. Vanbianchi 1971-9-24 87 Humboldt Comment
  JEPS62489  Prunella vulgaris var. lanceolata Joseph P. Tracy 1937-6-28 15370 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  POM257596  Prunella vulgaris var. lanceolata H. E. Parks, S. T. Parks 1937-07 24052 Humboldt Spruce Cove, Trinidad. 61 Comment
  CAS-BOT-BC159980  Prunus emarginata Joseph P. Tracy 1934-9-5 13656 Humboldt Horse Mountain 1402 Comment
  UC1713769  Prunus emarginata Joseph P. Tracy 1919-9-24 5296 Humboldt Trinity Summit; Northern Coast Ranges, Trinity Summit 1828 Comment
  HSC71369  Pseudognaphalium luteoalbum J. P. Smith 1973-5-26 6815 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  CAS-BOT-BC357604  Pseudognaphalium stramineum L. R. Abrams 1916-7-18 6090 Humboldt Arcata to Trinidad Comment
  HSC5708  Pseudognaphalium thermale J. P. Tracy 1938-8-14 16111 Humboldt Trinity River Valley at Willow Creek 152 Comment
  HSC29945  Pseudostellaria jamesiana D. H. Norris, J. Van Horn, D. E. Jackson 1973-6-19 193 Humboldt Humboldt National Forest, Santa Rosa Mtn. Range, Buffalo Canyon 1524 Comment
Read comments
Apr 11 2012
  CAS-BOT-BC80116  Pseudotsuga menziesii Doris K. Kildale 1927-12-1 4193 Humboldt Klamath River at Orleans Comment
  CAS-BOT-BC80117  Pseudotsuga menziesii Carl B. Wolf 1936-10-29 1785 Humboldt Old Coast Road 7 miles so. of Honeydew P.O. 304 Comment
  HSC41283  Pseudotsuga menziesii var. menziesii Brad Klipfel 1974-7-23 473 Humboldt Horse Mountain, NW from the towers Comment
  OBI36540  Pseudotsuga menziesii var. menziesii David J. Keil 1983-7-2 17338 Humboldt Horse Mtn Summit SW of Willow Crk Comment
  UC915719  Pseudotsuga menziesii var. menziesii W. L. Jepson June 1903 48 Humboldt Briceland Comment
  CAS-BOT-BC361929  Psilocarphus tenellus L. R. Abrams 1918-6-13 7094 Humboldt Fortuna Comment
  HSC55195  Pteridium aquilinum var. pubescens G. L. Clifton, Griswold 1979-8-2 12291 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC36260  Pteridium aquilinum var. pubescens John Rehling 1974-8-19 20 Humboldt Comment
  CHSC104064  Pyracantha angustifolia Peter F. Zika 2009-6-15 24493 Humboldt North Coast Ranges. Route 299, 0.2 km W of Davis Street, near town of Blue Lake. 80 Comment
  CAS-BOT-BC460604  Pyrola aphylla Doris K. Kildale 1927-7-3 3632 Humboldt Willow Creek Flat 152 Comment
  UC32693  Pyrola asarifolia Chestnut and Drew 1888-7-8 Humboldt Kneeland Prairie Comment
  CAS-BOT-BC462868  Pyrola asarifolia Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC63482  Pyrola asarifolia subsp. asarifolia M. A. Baker 1979-6-6 362 Humboldt 1.5 km N of Post Office on Patrick's Point Drive, Trinidad Comment
  JEPS66560  Pyrola asarifolia subsp. bracteata Lincoln Constance 1934-6-8 835 Humboldt Cow Creek fire-trail from Bull Cr road n over the divide into the headwaters Bear Cr (Bull Creek Region, South Fork Eel River); South Fork Eel River, Bull Creek Region Comment
  JEPS66563  Pyrola crypta Joseph P. Tracy 1932-7-14 10569 Humboldt Trinity Summit, Fir Woods near Corral Prairie 1584 Comment
  HSC45427  Pyrola crypta Thomas W. Nelson, Jane Nelson 1977-6-19 3502 Humboldt Along ridge N of pond above Alder Springs 1585 Comment
  RSA0080628  Pyrola dentata C. B. Wolf 1937-8-13 9242 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  BLMAR168  Quercus Donald Hazlett 1994-6-7 168 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  CAS-BOT-BC62629  Quercus chrysolepis T. Worley; M. Mill; F. Rosenthal 1985-5-10 59 Humboldt Grays Falls Campground 240 Comment
  HSC37825  Quercus chrysolepis Thomas W. Nelson, Jane P. Nelson 1976-2-21 2251 Humboldt Tish-Tang campground Comment
  UC1196531  Quercus chrysolepis Joseph P. Tracy 1921-8-21 5938 Humboldt near Willow Creek (at mouth of South Fork of Trinity); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1196534  Quercus chrysolepis Joseph P. Tracy 1911-6-8 3446 Humboldt near Mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC303002  Quercus chrysolepis Joseph P. Tracy 1926-6-6 7571 Humboldt on road w Hoopa Valley; Northern Coast Ranges, Hoopa Mountain 914 Comment
  UC5545  Quercus chrysolepis unknown 1867-6-17 Humboldt Elk Ridge Comment
  UCD82872  Quercus chrysolepis Rodney Gale Myatt 1971-9-21 1185 -14 Humboldt Near Orleans, northeast of Hoopa Reservation, along Klamath River. 185 Comment
  RSA44460  Quercus chrysolepis var. nana H. M. Pollard 1947-9-1 s.n. Humboldt Somes Mt. near summit, Orleans region. Comment
  UC1196516  Quercus garryana Joseph P. Tracy 1935-10-6 14754 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  RSA609410  Quercus garryana var. garryana Louis C. Wheeler 1958-8-7 7369 Humboldt Fort Baker Manganese Mine. Comment
  UC667984  Quercus kelloggii Joseph P. Tracy 1938-11-26 16176 Humboldt between Miranda and Garberville (at Sylvandale); South Fork of Eel River, Sylvandale 91 Comment
  UC672858  Quercus kelloggii Joseph P. Tracy 1940-9-15 16723 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC99441  Quercus sadleriana K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 91 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UCD47241  Quercus sadleriana Milo S. Baker 1947-8-10 11896 Humboldt 16 mi N.E. of Hooba along trail towards Trinity Summit from end of forest Rd. 1463 Comment
  HSC98273  Quercus vacciniifolia Blaze Baker, Matthew Barmann, Michael Max Hentz 1993-4-30 2 Humboldt Horse Mtn. near the radio towers on the uphill side of 6N36 1510 Comment
  UCR165264  Quercus vacciniifolia J. M. Tucker 1948-9-3 1851 Humboldt Six Rivers National Forest (formerly part of Trinity National Forest) on Horse Mountain at junction of road to Grouse Mt. and road to Horse Mt. Mine 1463 Comment
  CAS-BOT-BC104534  Quercus vacciniifolia N. Wynne; M. Peckham; J. Bamesberger 1994-5-6 43 Humboldt on W side of SRF Rd. 6N36, one mile N of intersection with Titlow Rd. Comment
  RSA178538  Quercus wislizeni Joseph P. Tracy 1950-6-15 18796 Humboldt Mail Ridge, north of Harris 7 miles Comment
  CAS-BOT-BC186671  Ranunculus Mrs. H. C. Cantelow 1936-5-18 1388 Humboldt 8 mi. N. of Orick nr. Corkscrew Tree Comment
  HSC18121  Ranunculus aquatilis var. diffusus D. E. Anderson 1965-6-1 3782 Humboldt Rd. to Brush Mtn., 0.25 mi. from Hwy. 299 Comment
  UC118295  Ranunculus aquatilis var. hispidulus J. W. Blankinship 1893-6-19 Humboldt Hydesville Comment
  POM270026  Ranunculus aquatilis var. hispidulus Joseph P. Tracy 1937-5-30 15311 Humboldt In Shallow pond near Bosworth's, alt 1200ft. Larrabee Creek. Comment
  UC668068  Ranunculus aquatilis var. hispidulus Joseph P. Tracy 1937-5-30 15311 Humboldt shallow pond near Bosworth's; Larrabee Creek 365 Comment
  SEINET13716688  Ranunculus californicus Unknown 1910-5-8 3132 Humboldt Immediate vicinity of Eureka Comment
  HSC41655  Ranunculus flammula var. ovalis J. O. Sawyer 1977-4-25 3043 Humboldt N side of Buttermilk Lane in Sunny Brae across from house 1425 Comment
  POM269620  Ranunculus flammula var. ovalis Joseph P. Tracy 1937-5-30 15312 Humboldt In Shallow pond near Bosworth's, alt 1200ft. Larrabee Creek. Comment
  UC1196269  Ranunculus muricatus J. P. Tracy 1907-6-10 2566 Humboldt Immediate vicinity of Eureka 0 Comment
  UC162916  Ranunculus occidentalis Joseph P. Tracy 1911-7-7 3406 Humboldt three mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch, meadows on mountain side); Northern Coast Ranges 914 Comment
  HSC18166  Ranunculus occidentalis var. occidentalis D. E. Anderson 1962-5-1 2190 Humboldt 1 mi. E of junction of Redwood Creek road and road to Hoopa Comment
  HSC98685  Ranunculus occidentalis var. occidentalis Cara Witte 2008-6-7 685 Humboldt Along National Forest 1. Approximately 4 miles south of intersection National Forest 1 and 5N04. 1441 Comment
  HSC75828  Ranunculus orthorhynchus var. bloomeri Bill Copeland 1980-7-2 312 Humboldt Near Snow Camp Mtn. 1311 Comment
  RSA20857  Ranunculus orthorhynchus var. platyphyllus Carl B. Wolf 1937-6-18 8897 Humboldt 1/2 miles E of Alton. 21 Comment
  UC1116207  Ranunculus pusillus Joseph P. Tracy 1942-5-16 17356 Humboldt Garberville 304 Comment
  CDA3482  Ranunculus repens T. C. Fuller 1968-7-3 17442 Humboldt North side of Elk River Road, 2 miles east of Highway 101 freeway, ca. 5 miles south of Eureka. 0 Comment
  HSC101992  Ranunculus uncinatus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 891 Humboldt Patterson Meadows 1566 Comment
  POM118711  Ranunculus uncinatus var. parviflorus Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  HSC99407  Ranunculus uncinatus var. uncinatus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 56 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC912384  Rhamnus californica subsp. occidentalis Herbert L. Mason 1932-7-21 7109 Humboldt on road to Arcata to Weaverville (e slope of Southfork Mountains); Southfork Mountains Comment
  UC630478  Rhamnus purshiana H. E. and S. T. Parks Jun 1937 24018 Humboldt Spruce Cove Trinidad Comment
  HSC100477  Rhododendron californicum Carl C. Marshall May 1886 204 Humboldt Woods of Coast-range. Comment
  HSC44734  Rhododendron columbianum Maralyn O'Meara 1971-10-25 53 Humboldt S side of Big Lagoon Comment
  HSC33060  Rhododendron macrophyllum Thomas W. Nelson 1974-5-7 1239 Humboldt Old Kneeland Rd. Comment
  RSA69211  Rhododendron macrophyllum A. D. Tenney 1925-04 6020 Humboldt Arcata. Comment
  OBI33909  Rhododendron occidentale David J. Keil 1983-7-2 17313 Humboldt Ca. 4 mi SE of SR 299 along Titlow Hill rd below Horse Mountain Summit rd Comment
  UC604616  Rhododendron occidentale Joseph P. Tracy 1938-6-16 15945 Humboldt Trinidad 60 Comment
  UCSB18968  Rhododendron occidentale Jensen, Karen 1965-4-14 Humboldt Along U.S. Highway 101, 1 km. S of Trinidad 45 Comment
  HSC7883  Rhododendron occidentale var. paludosum J. Pursell 1964-10-6 1062 Humboldt Big Lagoon Bog Comment
  HSC97159  Ribes binominatum Yun Chan, Renee Meyer, Sophary Yun 2007-6-11 8 Humboldt 12.5 mi. S of Hwy. 299 on USFS Rd. NF1 1555 Comment
  RSA167293  Ribes binominatum Joseph P. Tracy 1950-7-1 18949 Humboldt Grouse Mountain; at Cold Springs . 1433 Comment
  RSA459475  Ribes binominatum Thomas W. Nelson, Jane Nelson 1976-7-26 3040 Humboldt Along ridge NW of Mount Lassic (Signal Peak) 1707 Comment
  UC1198921  Ribes binominatum Joseph P. Tracy 1942-6-23 17251 Humboldt near Box Camp; Trinity Summit 1584 Comment
  CHSC115052  Ribes bracteosum Jessica O'Brien 2011-5-3 9231 Humboldt Near Frost Creek ca. 7.22 air miles south of Bridgeville. Triple THP. 502 Comment
  HSC20276  Ribes bracteosum S. S. Stutz 1963-5-18 53 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  HSC97303  Ribes bracteosum M. Mesler 2007-3-14 738 Humboldt Along Hwy. 101 at Orick Refuse Site (E side of Hwy.) 9 Comment
  RSA459478  Ribes bracteosum Barbara Kelly 1977-4-23 304 Humboldt 2.5 miles South of Shelter Cove Road. South fork of Bear Creek at Wailaki Campground. 561 Comment
  UC70556  Ribes inerme var. klamathense J. Burtt Davy 1899-6-26 5867 Humboldt Hoopa Valley North Coast Ranges Comment
  HSC101752  Ribes laxiflorum J. P. Smith, J. O. Sawyer 2012-2-27 13437 Humboldt Patrick's Point State Park 41 Comment
  HSC97311  Ribes laxiflorum M. Mesler 2007-3-23 744 Humboldt Near Trinidad, trail from Mill Creek to Elk Head, along creek near beach. 23 Comment
  JEPS49316  Ribes laxiflorum Joseph P. Tracy 1918-4-28 4890 Humboldt Northern Coast Ranges, Eureka, Ryan's Slough Ryan's Slough; Northern Coast Ranges, Eureka, Ryan's Slough 0 Comment
  CAS-BOT-BC173358  Ribes lobbii Harley P. Chandler 1901-6-1 1278 Humboldt Hupa Indian Reservation 1097 Comment
  UC1198924  Ribes lobbii Joseph P. Tracy 1942-6-23 17249 Humboldt near Box Camp; Trinity Summit 1584 Comment
  UC673202  Ribes lobbii Lincoln Constance, Reed C. Rollins 1942-5-11 2864 Humboldt 8 mi e Blue Lake (near summit); North Coast Ranges Comment
  CAS-BOT-BC173366  Ribes lobbii Volney Rattan 1882-6-1 s.n. Humboldt Coast Mts. North of San Francisco Bay Comment
  HSC102610  Ribes marshallii M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1597 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC74205  Ribes marshallii M. A. Baker 1980-7-19 3031 Humboldt Near Bret Hole. 1814 Comment
  UCD102480  Ribes roezlii P. Zinke 1950-8-4 153 Humboldt 2 miles west of Harris Post Office. 853 Comment
  CAS-BOT-BC198869  Ribes roezlii var. amictum Alice Eastwood 1939-3-19 18898 Humboldt Bolling Grove Comment
  UCD102483  Ribes roezlii var. cruentum Roman Gankin; W. R. Hildreth 1966-3-15 697 Humboldt State Highway 96, 2 miles north of Weitchpec. Comment
  UC1222367 Image available Ribes sanguineum Joseph P. Tracy 1950-5-7 18649 Humboldt head South Yager River Comment
  UC709454 Image available Ribes sanguineum Joseph P. Tracy 1941-4-8 16852 Humboldt Trinity Highway Willow Creek Canyon 762 Comment
  UC902055  Ribes sanguineum Joseph P. Tracy 1948-8-15 18133 Humboldt on ridge 2 mi e Grove's Prairie; Trinity Summit 1554 Comment
  CAS-BOT-BC144680  Ribes sanguineum var. glutinosum L. B. Kildale 1930-9-9 10405 Humboldt Bald Mountain 914 Comment
  CAS-BOT-BC144683  Ribes sanguineum var. glutinosum Ira L. Wiggins 1930-6-25 4617 Humboldt Sand dunes 2 miles north of Samoa Comment
  HSC89424  Ribes sanguineum var. glutinosum P. A. Daly 1984-5-8 7 Humboldt Trinidad Head. 61 Comment
  BLMAR270  Ribes sanguineum var. sanguineum Jennifer Anthony-Wheeler 1999-7-30 270 Humboldt Lacks Creek, growing in Hupa mt quad 1219 Comment
  CAS-BOT-BC362906  Rigiopappus leptocladus Volney Rattan 1883-6-1 s.n. Humboldt Unspecified Comment
  UC552252  Romanzoffia californica Joseph P. Tracy 1924-4-27 6645 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  CAS-BOT-BC74506  Rorippa curvisiliqua Doris K. Kildale 1926-7-18 2391 Humboldt Orick. Comment
  UC183576  Rorippa nasturtium-aquaticum Joseph P. Tracy 1912-7-4 3732 Humboldt near Hydesville; Northern Coast Region, near Hydesville 60 Comment
  JEPS53820  Rorippa palustris H. E. Parks and Joseph P. Tracy 1931-5-17 9425 Humboldt Trinity River near Willow Creek; Northern Coast Ranges, Trinity River nr Willow Creek 152 Comment
  UC667029  Rosa Joseph P. Tracy 1936-8-24 15179 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  CAS-BOT-BC147437  Rosa californica Joseph P. Tracy 1941-6-29 16965 Humboldt Buck Mountain 762 Comment
  HSC19624  Rosa gymnocarpa Lincoln Constance 1934-6-2 791 Humboldt Bull Creek Rd. to mouth of Bull Creek, top Bull Creek Comment
  HSC32264  Rosa gymnocarpa J. O. Sawyer 1970-6-24 2249 Humboldt S of Mill Creek Gap, FS Rd. 10N02 1433 Comment
  POM160283  Rosa gymnocarpa Joseph P. Tracy 1926-5-2 7443 Humboldt Willow Creek Canyon 610 Comment
  POM275419  Rosa gymnocarpa Lyman D. Benson 1928-7-12 489 Humboldt Weott Ranger Station. Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  UC467683  Rosa gymnocarpa Mrs. M. H. Manning 1901-6-7 61 Humboldt Hupa Comment
  CAS-BOT-BC146832  Rosa nutkana Alice Eastwood; John Thomas Howell 1937-6-23 4768 Humboldt Near Dinsmore's Comment
  UC1199026  Rosa nutkana var. nutkana Joseph P. Tracy 1927-7-4 8230 Humboldt Sibley Ranch Iaqua 609 Comment
  CHSC31292  Rosa pinetorum Mark Stopher 1980-7-11 115 Humboldt Along Elk River near Hwy 101 bridge. Comment
  CAS-BOT-BC148347  Rosa pisocarpa Doris K. Kildale 1928-6-24 5238 Humboldt Redwood Creek at Berry's 289 Comment
  HSC19623  Rosa rubiginosa D. E. Anderson 1965-9-5 4096 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  HSC99891  Rubus armeniacus Bill Wood 2011-8-19 Humboldt Eureka; corner of Myrtle Ave. and Bettie Lane Comment
  HSC58030  Rubus leucodermis G. L. Clifton 1979-7-31 11850 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC73352  Rubus leucodermis M. A. Baker 1980-6-7 1861 Humboldt Near Ammon Creek 732 Comment
  HSC98453  Rubus leucodermis Gail Newton 1980-8-10 2054 Humboldt Near Blake Mtn. 1707 Comment
  HSC104043  Rubus parviflorus C. Reynolds 2015-4-25 37 Humboldt At Redwood Creek Trailhead, off Bald Hills Road 20 Comment
  HSC79508  Rubus parviflorus Kenneth Clark 1980-4-18 589 Humboldt Shelter Cove. On lower alluvial terrace of Dead Man's Gulch 24 Comment
  CAS-BOT-BC156727  Rubus spectabilis David D. Keck; J. Clausen 1935-6-16 3394 Humboldt Mouth of Little River, at roadside Comment
  CAS-BOT-BC156729  Rubus spectabilis Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka Comment
  SBBG3106  Rubus spectabilis H. and M. Dearing 1933-5-19 668 Humboldt near Little River, N of Arcata Comment
  UC1199052  Rubus ursinus Joseph P. Tracy 1935-5-25 13827 Humboldt along headwaters Larrabee Creek (Blocksburg); along headwaters of Larrabee Creek 457 Comment
  HSC98908  Rubus ursinus subsp. macropetalus Cara Witte 2007-6-1 172 Humboldt Near intersection of National Forest 1 and Forest Service Road 5N10. 1441 Comment
  CAS-BOT-BC421934  Rumex acetosella Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC64435  Rumex acetosella J. P. Smith, Steve Selva 1970-6-30 4101 Humboldt Comment
  SEINET10479364  Rumex acetosella Mary Susan Taylor 1977-8-2 Taylor 1424 Humboldt In mountains above and east of Eureka. Comment
  SEINET4206289  Rumex acetosella J. Raycraft 1966-4-23 s.n. Humboldt Arcata Comment
  HSC102639  Rumex californicus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1623 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC73636  Rumex californicus M. A. Baker 1980-7-22 3128 Humboldt Near Grogan Hole. 1676 Comment
  UCD101126  Rumex crispus Linda M. Barker 1976-6-22 1622 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UC183585  Rumex obtusifolius Joseph P. Tracy 1913-6-1 4077 Humboldt Eureka Northern Coast Region 0 Comment
  UC153979  Rumex occidentalis Joseph P. Tracy 1910-6-5 3148 Humboldt near Samoa; Northern Coast Region, Humboldt Bay Region 0 Comment
  CAS-BOT-BC454099  Ruppia cirrhosa Malcom A. Nobs; S. Galen Smith 1949-8-3 1182 Humboldt Near mouth of the Elk River on Highway 101, ca. 4 miles south of Eureka Comment
  UC1100022  Ruppia maritima Malcolm A. Nobs and S. Galen Smith 1949-8-3 1182 Humboldt ca 4 mi s Eureka (on Highway 101, near mouth of Elk River) Comment
  UC668106  Sagina apetala Joseph P. Tracy 1933-3-19 12200 Humboldt Alton to Fortuna (Eel R.); Eel R. 15 Comment
  SEINET5337061  Sagina decumbens subsp. occidentalis J. Tracy 1905-4-30 2172 Humboldt Sand Dunes of Ocean Beach at Humboldt Bay Comment
  RSA246919  Salicornia virginica R. F. Thorne, P. Everett 1965-8-7 35205 Humboldt Samoa Peninsula. 0 Comment
  CAS-BOT-BC132710  Salix A. T. Whittemore 1980-3-15 80 -004 Humboldt Arcata, in residential area, along Alliance Road from Foster Ave. to the railroad tracks Comment
  SD37464  Salix Edith A. Purer 1932-7-30 4677 Humboldt S of Orick, sand dunes Comment
  UC463039  Salix boothii Leland S. Smith 1931-9-16 2633 Humboldt Babbitt Spring; Jones Valley Range, Tahoe Nat'l Forest 2133 Comment
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Jul 10 2015
  CAS-BOT-BC103824  Salix exigua L. R. Abrams; R. Bacigalupi 1922-6-25 8227 Humboldt 6 miles north of Garberville Comment
  UC490573  Salix exigua Joseph P. Tracy 1932-7-31 10295 Humboldt mouth of Larrabee Creek Eel R.; Northern Coast Ranges 60 Comment
  UC490574  Salix exigua var. hindsiana Joseph P. Tracy 1932-7-31 10289 Humboldt along Eel R. from S. Fork to Scotia (mouth of Larrabee Creek); Northern Coast Ranges 60 Comment
  CAS-BOT-BC104115  Salix hindsiana Joseph P. Tracy 1933-5-19 12203 Humboldt Eel River, Alton to Fortuna 15 Comment
  CAS-BOT-BC106858  Salix hookeriana Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 01207 Humboldt Little River Lagoon, 4 1/2 miles south of Trinidad Comment
  CAS-BOT-BC107705  Salix hookeriana Harold E. Parks 1931-3-24 915 Humboldt Trinidad 90 Comment
  CAS-BOT-BC107732  Salix hookeriana Harold E. Parks 1931-3-26 905 Humboldt Alton, on Van Duzen River 15 Comment
  CHSC9555  Salix hookeriana E. L. Smith 1971-4-6 925 Humboldt Ca. 7 mi s of Eureka at Field's Landing. Comment
  CHSC9655  Salix hookeriana E. L. Smith 1971-8-18 1025 A Humboldt Clam Beach County Park ca. 6 mi s of Trinidad. Comment
  CHSC96715  Salix hookeriana Gordon Leppig 2005-4-8 2211 Humboldt Humboldt Bay Dunes and Wetlands. Eureka, swamp at west end of W. Hawthorne St. NAD 27 UTM Zone 10, 4515862 N, 400315 E. 3 Comment
  HSC19965  Salix hookeriana H. E. Parks, S. T. Parks 1932-4-5 1100 Humboldt Little River Comment
  HSC40869  Salix hookeriana Linda M. Barker 1976-3-22 1340 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC6821  Salix hookeriana H. E. Parks 1931-3-24 912 Humboldt Along lower Eel River, near Fortuna Comment
  HSC96368  Salix hookeriana Gordon Leppig 1999-4-15 1121 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 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
  RSA5644  Salix hookeriana H. E. Parks 1931-5-28 1000 Humboldt Little River Lagoon. 0 Comment
  UC1196544  Salix hookeriana Joseph P. Tracy 1935-3-3 13715 Humboldt near mouth Mad R. 6 Comment
  UC1196630  Salix hookeriana J. P. Tracy 1905-3-26 2151 Humboldt Immediate vicinity of Eureka 0 Comment
  UC176701  Salix hookeriana Joseph P. Tracy 1913-9-21 4414 Humboldt Humboldt Bay Northern Coast Region (dunes of ocean beach) Comment
  UC469120  Salix hookeriana Joseph P. Tracy 1927-4-23 7922 Humboldt Big Lagoon Northern Coast Ranges 6 Comment
  UC470439  Salix hookeriana Joseph P. Tracy 1931-9-19 9679 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC481393  Salix hookeriana Harold E. Parks 1931-3-24 912 Humboldt Fortuna Eel River (banks of river) 10 Comment
  UC490456  Salix hookeriana Joseph P. Tracy 1932-5-10 9954 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC512098  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1211 Humboldt 1 mi n Samoa (near coast) Comment
  UCD111030  Salix hookeriana Linda M. Barker 1976-3-22 1340 Humboldt 3 miles west of Arcata. Comment
  UCD111043  Salix hookeriana Linda M. Barker 1976-9-3 1693 Humboldt 3 miles west of Arcata. Comment
  CDA39526  Salix hookeriana Gordon Leppig 2005-4-8 2203 Humboldt Humboldt Bay Dunes and Wetlands; North Spit, south end of Peninsula Drive. Comment
  UC490519  Salix laevigata Joseph P. Tracy 1932-5-1 9879 Humboldt vicinity of Garberville; Northern Coast Ranges 121 Comment
  UC490520  Salix laevigata Joseph P. Tracy 1932-4-23 9835 Humboldt between Miranda and Redway (S. Fork Eel R.); S. Fork Eel R. 91 Comment
  UC519387  Salix laevigata Joseph P. Tracy 1933-6-9 12528 Humboldt along Eel R. Shively; Northern Coast Ranges, , Eel R. 30 Comment
  HSC19978  Salix lasiandra J. W. Johnson 1962-3-7 1171 Humboldt Next to the barn of the Lanphere Farm, Samoa Peninsula Comment
  UC1196590  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1919-9-14 5205 Humboldt near Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  CAS-BOT-BC125225  Salix lasiandra var. lasiandra Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-11 01206 Humboldt Little River Lagoon, 4 1/2 miles south of Trinidad, elevation approximately sea level Comment
  SD1004  Salix lasiandra var. lasiandra Harold E. Parks, Joseph P. Tracy 1931-5-17 966 Humboldt Mouth of Willow Creek at Trinity River 149 Comment
  CAS-BOT-BC107587  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1321 Humboldt On banks of Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  CAS-BOT-BC107589  Salix lasiolepis Joseph P. Tracy; Carleton R. Ball; Harold E. Parks 1932-5-17 1318 Humboldt On banks of Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  CAS-BOT-BC107647  Salix lasiolepis Joseph P. Tracy 1932-10-8 10865 Humboldt Berry's Mt. on Trinity Highway 762 Comment
  CAS-BOT-BC107649  Salix lasiolepis Joseph P. Tracy 1933-5-14 12184 Humboldt Berry's Mt. on Trinity Highway 762 Comment
  UC1196619  Salix lasiolepis Joseph P. Tracy 1933-7-20 12807 Humboldt Mad River, near Blue Lake 15 Comment
  UC471109  Salix lasiolepis Joseph P. Tracy 1931-9-26 9695 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC481315  Salix lasiolepis H. E. Parks and Joseph P. Tracy 1931-5-17 976 Humboldt mouth of Willow Creek at Trinity River 150 Comment
  UC511971  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-13 1253 Humboldt 2 mi. e. of Redwood Hwy. and above Blue Lake Rd. Engelhart gravel pit (floodplain of Mad R.); Mad River Comment
  UC519336  Salix lasiolepis Joseph P. Tracy 1933-5-20 12264 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  UC526716  Salix lasiolepis Joseph P. Tracy 1934-3-11 13146 Humboldt Weitchpec Northern Coast Ranges, Klamath River 91 Comment
  RSA475257  Salix lucida subsp. lasiandra Lyman D. Benson 1929-7-15 1809 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  CAS-BOT-BC125622  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt East of Redwood Highway, 6 km. south of Alton 20 Comment
  JEPS14755  Salix melanopsis Joseph P. Tracy, C. R. Ball, and H. E. Parks 1932-5-17 10095 Humboldt Trinity River near Willow Creek; North Coast Ranges 152 Comment
  SBBG57957  Salix melanopsis H. E. Parks 1931-5-14 964 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  UC212983  Salix melanopsis Joseph P. Tracy 1920-5-31 5334 Humboldt mouth of Yager Creek; Northern Coast Region, Yager Creek 30 Comment
  UC212984  Salix melanopsis Joseph P. Tracy 1920-5-31 5334 Humboldt mouth of Yager Creek; Northern Coast Region, Yager Creek 30 Comment
  UC469446  Salix melanopsis Joseph P. Tracy 1931-5-3 9343 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  UC469452  Salix melanopsis Joseph P. Tracy 1931-9-7 9641 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC481307  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 972 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC481341  Salix melanopsis Harold E. Parks 1931-10-15 1077 Humboldt Bishop Pine Lodge Trinidad 75 Comment
  UC481829  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 284 Humboldt 6 mi. s. Alton (e. of Redwood Hwy.) Comment
  UC519360  Salix melanopsis Joseph P. Tracy 1933-6-7 12512 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UC55940  Salix melanopsis J. P. Tracy 1900-9-9 943 Humboldt Yager Creek near Hydesville (along slough); Yager Creek Comment
  HSC20076  Salix scouleriana J. P. Tracy 1932-7-13 10507 Humboldt Klamath Mtns., Trinity summit, Corral Prairie 1524 Comment
  UC1196694  Salix scouleriana Joseph P. Tracy 1932-10-12 10876 Humboldt along S. Fork Eel R. Miranda; Northern Coast Ranges, S. Fork Eel R., Miranda 91 Comment
  UC470445  Salix scouleriana Joseph P. Tracy 1929-10-20 8680 Humboldt Larrabee Valley Northern Coast Ranges, Larrabee Valley 701 Comment
  UC481358  Salix scouleriana Harold E. Parks 1931-5-14 957 Humboldt Little Larabee Bridge Van Duzen R. 450 Comment
  POM182025  Salix sessilifolia Joseph P. Tracy 1932-4-17 9798 Humboldt Eel River. Alton to Fortuna. 15 Comment
  CHSC96718  Salix sitchensis Gordon Leppig 2005-4-8 2212 Humboldt Humboldt Bay Dunes and Wetlands. Eureka, Edge of PALCO Marsh, brackish marsh at west end of W. Hawthorne St. NAD 27 UTM Zone 10, 4515862 N, 400315 E. 3 Comment
  HSC20105  Salix sitchensis H. E. Parks 1931-3-24 910 Humboldt Trinidad Comment
  HSC38183  Salix sitchensis Thomas W. Nelson, James Nelson 1976-3-5 3283 Humboldt Along S fork of Martins Slough just upstream from Eureka Muni Golf Course Comment
  HSC38184  Salix sitchensis Thomas W. Nelson, James Nelson 1976-3-5 3282 Humboldt Along S fork of Martins Slough just upstream from Eureka Muni Golf Course Comment
  HSC90400  Salix sitchensis Jean Hanson 1980-3-8 5 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  UC481394  Salix sitchensis Harold E. Parks 1931-3-24 913 Humboldt Eel R. Fortuna; Eel R. 10 Comment
  UC490531  Salix sitchensis Joseph P. Tracy 1932-7-18 10724 Humboldt head of Brett Hole; Klamath Mts., Trinity Summit, Brett Hole 1828 Comment
  RSA407351  Sambucus callicarpa Lyman Benson 1973-08 815 Humboldt Weott Ranger Station 61 Comment
  CAS-BOT-BC238659  Sambucus nigra subsp. caerulea Doris K. Kildale 1926-9-9 2677 Humboldt Van Duzen River between Strong's [Strongs] Station & Bridgeville. Bar W. Ranch 158 Comment
  HSC57005  Sambucus nigra subsp. caerulea Overton, Butler 1979-7-24 9591 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC57142  Sambucus nigra subsp. caerulea Overton, Butler 1979-7-26 9926 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  HSC73873  Sambucus nigra subsp. caerulea M. A. Baker 1980-7-19 3020 Humboldt Near Bret Hole. 1814 Comment
  CAS-BOT-BC235127  Sambucus racemosa var. racemosa John Thomas Howell 1931-6-17 6725 Humboldt 2 1/2 miles n. of Orick Comment
  HSC3969  Sambucus racemosa var. racemosa E. W. Styskel 1963-4-2 13 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. Comment
  HSC37578  Sanicula arctopoides J. D. Ackerman 1975-6-10 448 Humboldt 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila Comment
  HSC45369  Sanicula arctopoides R. York, Linda York 1978-4-1 101 Humboldt Growing on foredunes at end of Lighthouse Rd., 2 mi. SE of Petrolia Comment
  HSC81674  Sanicula crassicaulis Thomas W. Nelson, Jane P. Nelson 1980-7-13 6065 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  HSC95100  Sanicula crassicaulis Andrea Pickart 2002-6-30 131 Humboldt Lamphere Dunes Unit, Humboldt Bay National Wildlife Refuge 24 Comment
  RSA183595  Sanicula crassicaulis C. F. Zeillemaker 1964-4-7 64 -A-3 Humboldt Three miles southwest of Samoa on Samoa Peninsula at US Coast Guard Station. 3 Comment
  UC154132 Image available Sanicula tracyi Joseph P. Tracy 1908-6-30 2740 Humboldt nw slope Buck Mountain; Northern Coast Ranges; NW slope of Buck Mt., Humboldt Co. 762 Comment
  HSC70958  Sanicula tuberosa Thomas W. Nelson 1977-6-15 3433 Humboldt Along FS Rd. 6N01 about 1 mi. S of junction with FS Rd. 5N10 1372 Comment
  UC535768  Satureja douglasii Eleanor Armstrong 1934-5-18 Humboldt Richardson Grove Comment
  JEPS79979  Saxifraga mertensiana Joseph P. Tracy 1927-4-2 7884 Humboldt South Fork Eel River between Miranda and Redway; North Coast Ranges, South Fork Eel River 91 Comment
  UC1198889  Saxifraga mertensiana Joseph P. Tracy 1932-4-24 9813 Humboldt between Miranda and Redway (South Fork Eel River); North Coast Ranges, South Fork Eel River 91 Comment
  CAS-BOT-BC441187  Saxifraga mertensiana Alice Eastwood; John Thomas Howell 1937-6-24 4867 Humboldt 5 miles east of Berry Summit Comment
  UC642323  Scandix pecten-veneris Joseph P. Tracy 1935-5-25 13872 Humboldt Fort Seward 106 Comment
  UC642324  Scandix pecten-veneris Joseph P. Tracy 1927-4-24 7926 Humboldt Eureka 15 Comment
  POM126085  Schoenoplectus maritimus Joseph P. Tracy 1924-9-28 6907 Humboldt Centerville, northern coast ranges 3 Comment
  RSA246892  Schoenoplectus maritimus Robert F. Thorne, Percy C. Everett 1965-8-9 35339 Humboldt Along Highway 101 about 3 miles north of Eureka. 2 Comment
  SEINET3913367  Schoenoplectus pungens var. badius J. D. Ackerman 1975-6-10 465 Humboldt About 1 mi. N of Samoa Bridge turnoff from Samoa Blvd., S of Manila. Humboldt Bay.; 0 Comment
  UC668018  Scirpus acutus var. occidentalis Joseph P. Tracy 1934-7-20 13472 Humboldt Big Lagoon 3 Comment
  UC1100781  Scirpus cernuus Malcolm A. Nobs, S. Galen Smith 1949-8-3 1174 Humboldt salt marshes around Fields Landing; around Fields Landing Comment
  UC1100779  Scirpus cernuus Malcolm A. Nobs, S. Galen Smith 1949-8-11 1347 Humboldt marshes on eastern side Big Lagoon; marshes on eastern side Big Lagoon Comment
  UC1100832  Scirpus microcarpus Malcolm A. Nobs, S. Galen Smith 1949-8-3 1198 Humboldt marsh and bog land at the southern outskirts Eureka; southern outskirts Eureka Comment
  CAS-BOT-BC361311  Scoliopus bigelovii Richard R. Halse 2013-3-28 8766 Humboldt Along U.S. Hwy. 101 ca. 2.2 miles S of Exit 671 to Pepperwood 76 Comment
  UCD139809  Scoliopus bigelovii K. Esau 1934-4-1 s.n. Humboldt Above Fort Seward. Comment
  HSC21130  Scrophularia californica P. Markle 1962-5-19 49 Humboldt Arcata Community Forest, along trail branching off of cross country track, near old lumber mill Comment
  SEINET12330006  Scrophularia californica F. H. Utech 1986-1 86 -407 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  HSC97304  Scutellaria antirrhinoides Bryan Atkinson, Jenny Lynn Hutchinson 2007-6-11 4 Humboldt Near Grouse Mtn., 14.1 mi. S of Hwy. 299 on FS Rd. NF1 1341 Comment
  HSC98722  Scutellaria antirrhinoides Cara Witte 2008-7-16 918 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  UC154009  Scutellaria antirrhinoides Joseph P. Tracy 1909-7-31 3031 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC577340  Scutellaria californica Joseph P. Tracy 1937-7-11 15423 Humboldt vicinity of Garberville 121 Comment
  HSC40873  Scutellaria californica Thomas W. Nelson 1976-7-9 3010 Humboldt S of Mt. Lassic (Signal Peak) 1707 Comment
  HSC100511  Scutellaria tuberosa Carl C. Marshall Jun 1887 470 Humboldt Near Garberville. Comment
  HSC57963  Sedum divergens G. L. Clifton, Griswold 1979-7-31 11770 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  UC667087  Sedum laxum subsp. heckneri Joseph P. Tracy 1927-5-15 8055 Humboldt near Hoopa Valley (Supply Creek, on barren rocky bluffs); Northern Coast Ranges, near Hoopa Valley 457 Comment
  HSC44562  Sedum obtusatum subsp. retusum Brad Klipfel 1973-7-15 182 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC57176  Sedum obtusatum subsp. retusum Overton, Butler 1979-7-26 9997 Humboldt Near Willow Creek 1341 Comment
  HSC57959  Sedum obtusatum subsp. retusum G. L. Clifton, Griswold 1979-7-31 11659 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC59359  Sedum obtusatum subsp. retusum M. A. Baker 1979-6-28 945 Humboldt 1500 Comment
  HSC72663  Sedum radiatum M. A. Baker 1980-6-26 2469 Humboldt Near Sims Creek 610 Comment
  HSC63239  Sedum spathulifolium var. spathulifolium M. A. Baker 1979-6-7 801 Humboldt Hwy. 299, 3 km N of Berry Summit Comment
  JEPS19067  Selaginella oregana Joseph P. Tracy 1933-11-26 13124 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC34194  Senecio integerrimus var. major Harley P. Chandler June 1901 1274 Humboldt Hupa Indian Reservation North Coast Ranges 1036 Comment
  CAS-BOT-BC364015  Senecio integerrimus var. major Duart V. Brown 1947-4-2 29 Humboldt Near Sweed [Sweet] Creek, Trinity River 457 Comment
  HSC67933  Senecio integerrimus var. major J. P. Smith, J. O. Sawyer 1974-6-2 7652 Humboldt 1372 Comment
  HSC32530  Senecio jacobaea Thomas W. Nelson 1973-9-3 1132 Humboldt McKeown Ranch N of Dinsmore Comment
  UC545823  Senecio minimus H. E. Parks 1931-9-1 1058 Humboldt Trinidad 76 Comment
  UC1223153  Senecio sylvaticus Joseph P. Tracy 1941-8-17 16992 Humboldt near High Prairie (Bald Mountain); Bald Mountain Comment
  UC128739  Senecio sylvaticus Joseph Burtt Davy and Walter C. Blasdale 1899-6-12 5446 Humboldt near Elk Prairie; north-western California Comment
  UC1223150  Senecio triangularis Joseph P. Tracy 1950-7-31 19241 Humboldt ne side top Grouse Mountain; ne side top of Grouse Mountain 1524 Comment
  IRVC3682  Sequoia sempervirens R. H. Whittaker, W. A. Niering U Humboldt Humboldt Redwoods State Park. Comment
  NY64518  Sequoia sempervirens R. R. Halse 1989-5-13 3842 Humboldt Along U.S. Highway 101, 2 miles south of Weott 108 Comment
  RSA40900  Sequoia sempervirens C. B. Wolf 1944-10-25 11469 Humboldt Along the Eel River Valley, Redwood Highway, 2.4 miles south of Scotia 61 Comment
  SDSU292  Sequoia sempervirens Wayne A. Bemis 1963-11-29 245 Humboldt 1289 D st Arcata. Empire series Sandstone, West slope. Ocean fog belt of North Coast. 55 Comment
  UC1530712  Sequoia sempervirens R. W. Becking 1984-9-23 Humboldt Federation of Women's Grove Humboldt Co. Weott, Humboldt Redwoods State Park, Federation (Humboldt Co. Weott <sic>, Humboldt Redwoods State Park) Comment
  NY64455  Sequoia sempervirens H. H. Smith 1911-6-16 3824 Humboldt Vanceslan No. 20 Comment
  UC526852  Setaria viridis Joseph P. Tracy 1934-8-18 13589 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  UCD92863  Setaria viridis A. H. Murphy 1948-9-1 s.n. Humboldt Cottral Ranch, Table Bluff. Comment
  HSC19859  Sherardia arvensis John A. Dubois 1962-5-23 25 Humboldt 20 mi. E of Arcata Comment
  JEPS79984  Sidalcea diploscypha Joseph P. Tracy 1927-5-30 8087 Humboldt Briceland; Northern Coast Ranges 182 Comment
  JEPS67223  Sidalcea malachroides W. L. Jepson 1902-6-24 1929 Humboldt above Korbel; above Korbel, Korbel to Angel's Ranch Comment
  UC1197963  Sidalcea malachroides Joseph P. Tracy 1936-8-1 15061 Humboldt 6 mi se Korbel (Canyon Creek); , se of Korbel 304 Comment
  UC1222506  Sidalcea malachroides Joseph P. Tracy 1950-6-8 18743 Humboldt one mi e Cape Mendocino (near top of Cape Ridge); e of Cape Mendocino, Cape Ridge 152 Comment
  HSC69889  Sidalcea malviflora subsp. nana Thomas W. Nelson, Jane Nelson 1977-7-30 3663 Humboldt Beside State Rte. 36, 1 mi. E of Dinsmore. 732 Comment
  JEPS67258  Sidalcea oregana subsp. eximia W. L. Jepson 1921-8-7 9324 Humboldt Dow's Prairie Comment
  POM161047  Sidalcea oregana subsp. eximia Joseph P. Tracy 1920-8-29 5394 Humboldt Dow s Prairie, around Humboldt Bay Comment
  UC205633  Sidalcea oregana subsp. eximia Joseph P. Tracy 1920-8-29 5394 Humboldt Dows Prairie Northern Coast Region, around Humboldt Bay Comment
  UC1198364  Silene antirrhina Joseph P. Tracy 1911-7-12 3519 Humboldt mountain slopes along road between Three Creeks and mouth Willow Creek; Northern Coast Ranges, btw Three Creeks and mouth Willow Cre 762 Comment
  HSC103772  Silene bolanderi M. R. Mesler 2014-6-4 1634 Humboldt Burr Valley Road near Dinsmore 1012 Comment
  UC1198361  Silene californica Joseph P. Tracy 1948-8-8 18096 Humboldt Iaqua 609 Comment
  UC668099  Silene californica Joseph P. Tracy 1938-7-7 16040 Humboldt Grouse Mountain 1524 Comment
  RSA185758  Silene californica John H. Thomas 1949-6-14 924 Humboldt Salmon River Valley near its junction with Klamath River. Comment
  SEINET10937651  Silene californica Imper 1983-6-30 IMPER s.n. Humboldt T11n,r4e. Ca 5 miles s of onion lake, on serpentine roadside. Plants are little If at all glandular 914 Comment
  SEINET6905325  Silene californica Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt About 4 miles southeast of Kneeland. Comment
  UC906706  Silene californica Harold E. Parks and Joseph P. Tracy 1942-7-1 11575 Humboldt Dinsmore's 762 Comment
  HSC4189  Silene gallica Harvey Doerksen 1962-5-8 9 Humboldt 3 mi. W of Blue Lake, fork Mad River and Essex Creek Comment
  HSC68115  Silene gallica J. P. Smith 1973-5-26 6869 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC13555  Silene hookeri W. C. Blasdale 1896-6-8 Humboldt Grahams Grahames ((Grahames?)) Comment
  HSC4170  Silene laciniata subsp. californica Paul Shields 1955-6-12 Humboldt 6 miles west of Meyers Flat Comment
  RSA595780  Silene lemmonii R. S. Woglum 1931-7-15 24 B Humboldt Outer Coast Ranges, Sequoia Park. Comment
  UC162691  Sisyrinchium californicum J. P. Tracy 1911-6-25 3247 Humboldt immediate vicinity of Eureka 0 Comment
  HSC62981  Sisyrinchium californicum David Wheeler 1979-5-22 129 Humboldt Samoa, intersection of Samoa Blvd. and the railroad tracks near Arcata Redwood Co. Comment
  RSA246653  Solanum americanum Robert F. Thorne, Percy C. Everett 1965-8-5 35147 Humboldt Samoa Dunes. 3 Comment
  RSA15565  Solidago canadensis subsp. elongata C. B. Wolf 1927-8-29 1198 Humboldt 7 miles south of Ferndale and Capetown, Bear River Ridge, Mt. Glen. Comment
  UC1541616  Solidago elongata Harold E. Parks Jul 1 1931-Aug 1 1931 1056 Humboldt Trinidad 76 Comment
  UC302291  Solidago elongata Joseph P. Tracy 1926-7-25 7749 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC630465  Solidago elongata H. E. and S. T. Parks September 1937 24081 Humboldt Spruce Cove , Spruce Cove (Trinidad) 64 Comment
  CAS-BOT-BC365667  Solidago spathulata A. A. Heller 1924-7-22 13872 Humboldt At Samoa opposite Eureka Comment
  CAS-BOT-BC365669  Solidago spathulata Doris K. Kildale 1928-8-10 6263 Humboldt Samoa Peninsula - Humboldt Bay Comment
  CHSC13899  Solidago spathulata D. Joley 1967-8-17 65 Humboldt Found growing 10 mi NW of Fortuna. Comment
  CHSC69500  Solidago spathulata Vernon Oswald; Lowell Ahart 1997-9-4 8852 Humboldt North Spit of Humboldt Bay, west side of New Navy Base Rd. 1.1 mi south of Hwy. 255. ON dunes. 6 Comment
  HSC68158  Solidago spathulata J. P. Smith 1971-10-6 4977 Humboldt End of Murray Rd. in McKinleyville. Comment
  UC1541471  Solidago spathulata J. P. Tracy 1924-9-21 6900 Humboldt Eureka Comment
  CAS-BOT-BC364970  Solidago velutina subsp. californica Carl B. Wolf 1927-8-29 1198 Humboldt 7 mi. s. of Ferndale & Capetown, Bear River Ridge, Mt. Glen Comment
  UC127601  Soliva sessilis Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5684 Humboldt Hoopa Mt. North-Western California, Hoopa Mt. Comment
  UC1198766  Sorbus californica Doris K. Kildale 1926-9-5 2635 Humboldt on trail between Red Peak and Signal Peak; Lasseck's Peaks 1676 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
  UCSB25395  Sparganium emersum Keefe, Joseph 1967-7-8 Humboldt East side of U.S. Highway 101, turnoff to Crannell Road, north of Eureka 6 Comment
  JEPS397  Sparganium emersum var. emersum Joseph P. Tracy 1934-7-30 13507 Humboldt along coast in front of s end Stone Lagoon; Dry Lagoon 3 Comment
  UC750491  Sparganium emersum var. emersum Henry M. Pollard 1946-8-13 Humboldt near Harley Place (Orleans Region); Orleans Region Comment
  RSA640443  Spartina Avis Keedy 1988-9-18 8 Humboldt On Jolly Giant Creek near mouth. Arcata Salt Marsh Project. Comment
  HSC93850  Spartina densiflora Gordon Leppig, Kai Neander 1999-4-30 1131 Humboldt Humboldt Bay, Eureka, 30 m S of Del Norte St. fishing pier 1 Comment
  HSC83043  Spartina densiflora A. L. Eicher 1985-6-19 Humboldt Bordering Humboldt Bay, adjacent to the mouth of Mad River Slough, on SW side 1 Comment
  HSC82960  Spergularia canadensis var. occidentalis A. L. Eicher 1985-6-20 Humboldt Humboldt Bay, .3 mi. S of jct. of Samoa Blvd. and Vance Ave. 1 Comment
  CAS-BOT-BC390305  Spergularia macrotheca var. macrotheca A. A. Heller 1923-7-9 13780 Humboldt Flat between Eureka and Arcata Comment
  RSA472780  Spiraea douglasii Emery M. Whilton 1941-6-25 s.n. Humboldt Scotia. Comment
  UC1196399  Spiranthes romanzoffiana Joseph P. Tracy 1949-8-11 18463 Humboldt Snow Camp 1402 Comment
  UC668222  Stachys ajugoides var. ajugoides Joseph P. Tracy 1938-6-15 15931 Humboldt Fortuna 18 Comment
  CHSC803  Stachys ajugoides var. rigida 1941-5-30 Humboldt Comment
  UC1124935  Stachys ajugoides var. rigida H. L. Person 1932-7-16 T.H. 30 Humboldt highway n Trinidad; Rock Point Quadrangle Comment
Read comments
Aug 3 2007
  UC1602161  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15954 Humboldt Cape Mendocino 152 Comment
  UC180214  Stachys ajugoides var. rigida Joseph P. Tracy 1914-6-14 4512 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UCLA71172  Stachys ajugoides var. rigida C. Epling, Wm. Robison 1935-7-22 Humboldt Patrick's Point Comment
  CDA41013  Stachys ajugoides var. rigida T. C. Fuller 1962-8-6 9351 Humboldt Highway 299 to Blue Lake, 4.8 miles west of Willow Creek. 0 Comment
  UCLA71124  Stachys ajugoides var. rigida H. Lewis 1940-7-3 Humboldt Founders Tree Humboldt State Park Comment
  BLMAR186  Stachys bergii Donald Hazlett 1994-6-7 186 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  POM283271  Stachys bullata Lyman Benson 1928-7-10 s.n. Humboldt Weott Ranger Station. Seaward N Coast mtn range, S. Fork Eel River drainage. 61 Comment
  RSA26844  Stachys chamissonis I. L. Wiggins 1940-7-10 9489 Humboldt Table Bluff Comment
  HSC39166  Stachys mexicana D. E. Anderson, J. P. Smith 1971-6-28 - 1237 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC54596  Stachys rigida Overton, Butler 1979-7-24 9672 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  SD93025  Stachys rigida var. quercetorum W. Bertsch 1953-7-30 218 Humboldt Highway 101 at Duncan Grove. 91 Comment
  POM174067  Stephanomeria virgata Joseph P. Tracy 1918-7-7 5039 Humboldt Garberville. 152 Comment
  BLMAR45  Stipa lemmonii Brad Barr June, 1982 45 Humboldt King range, Spanish Ridge, south facing slope Comment
  HSC58416  Stipa occidentalis var. californica Griswold, Butler 1979-7-12 7217 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  CAS-BOT-BC87610  Streptanthus tortuosus Henry M. Pollard 1947-9-1 s.n. Humboldt Extreme summit of Somes Peak near Orleans. 1618 Comment
  UC1492818  Streptanthus tortuosus Freed W. Hoffman 1950-7-10 3434 Humboldt on road from Willow Creek to Happy Camp 6.6 mi s Klamath River; Hoopa Indian Reservation Comment
  UC302043  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1926-5-15 7477 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC302044  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1926-6-6 7554 Humboldt on road w from Hoopa to Bair's near summit; Northern Coast Ranges, Hoopa Mountain 1066 Comment
  UC492251  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy Jul 16 1930-Jul 19 1930 9029 Humboldt along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  HSC39681  Streptanthus tortuosus var. tortuosus Thomas W. Nelson 1976-6-16 2741 Humboldt Just W of Alder Springs. 1524 Comment
  HSC57893  Streptanthus tortuosus var. tortuosus Walter Overton, Marvin Butler 1979-7-31 11468 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  HSC103966  Streptanthus tortuosus var. tortuosus A. Thoele, Sydney Carothers 1995-7-13 38 Humboldt Six Rivers National Forest; Potato Hill, NE side of Pilot Creek. Take SR1 to jct. with 3N14, walk NW 1.4 mi., then SW 1/3 mi. down ridge 1498 Comment
  UC303040  Streptopus amplexifolius var. americanus Joseph P. Tracy 1926-5-22 7508 Humboldt Prairie Creek; Northern Coast Ranges 152 Comment
  JEPS13646  Symphoricarpos mollis Lincoln Constance 1934-6-3 808 Humboldt road from High Rock to Horse Prairie (High Rock (on Redwood Hwy, 1 mi n of Dyerville)); South Fork Eel River, Bull Creek Region Comment
  CAS-BOT-BC99166  Symphyotrichum chilense Carl B. Wolf 1937-9-9 9312 Humboldt North Coast Range, Wildcat Ridge, 6 3/10 mi. So. of Ferndale 304 Comment
  UC1222982  Symphyotrichum hendersonii Joseph P. Tracy 1941-8-24 17040 Humboldt near McKay camp; South Fork Mountain 1676 Comment
  UC165029  Symphyotrichum subspicatum J. P. Tracy 1900-9-3 936 Humboldt immediate vicinity of Eureka 0 Comment
  UC1222192  Symphytum asperum Joseph P. Tracy 1949-6-28 18358 Humboldt Salmon Creek Valley s. end Humboldt Bay, Salmon Creek Valley Comment
  JEPS26263  Synthyris reniformis Joseph P. Tracy 1924-2-10 6601 Humboldt Bald Mountain at Hungry Hollow; Bald Mountain 762 Comment
  BLMAR752  Tanacetum bipinnatum Kate McGrath 2015-6-28 752 Humboldt Samoa Peninsula, Throughout Samoa Dunes Rec Area and OHV area 1 Comment
  HSC6252  Tanacetum bipinnatum D. B. Bader 1963-5-1 2 Humboldt Second of Clam Beach Lagoons, W of Hwy. 101, along R.R. tracks Comment
  RSA26843  Tanacetum camphoratum I. L. Wiggins 1940-7-10 9484 Humboldt Big Lagoon. Comment
  UC1223070  Tanacetum parthenium Joseph P. Tracy 1946-7-28 17624 Humboldt Head of Willow Creek Comment
  HSC38097  Taxus brevifolia Thomas W. Nelson, James Nelson 1976-5-30 2619 Humboldt McKeown Ranch, N of Dinsmore. Comment
  POM299136  Taxus brevifolia Joseph P. Tracy 1927-3-27 7865 Humboldt Willow Creek Canyon 762 Comment
  RSA46723  Taxus brevifolia Doris K. Kildale 1937-10-28 15080 Humboldt Willits Comment
Read comments
Jan 24 2013
  HSC53851  Tellima grandiflora Griswold, Butler 1979-7-10 6316 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  JEPS49696  Tellima grandiflora Milo S. Baker 1923-7-20 Humboldt near South Yager Creek (Redwood House Road) Comment
  UC160904  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1908-6 2714 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC162827  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1906-6-24 2501 Humboldt near Fields Landing; Northern Coast Region, Region about Humboldt Bay, Humboldt H 0 Comment
  UC668275  Thalictrum fendleri var. polycarpum Joseph P. Tracy 1937-5-30 15308 Humboldt along creek 3 mi n Blocksburg; Larrabee Creek 457 Comment
  UC1565796  Thlaspi montanum var. montanum R. Spellenberg 1990-7-10 10234 Humboldt on USFS Rd 6N08, 7.5 air mi sw Salyer (on Friday Ridge 0.4 mi ne of junction with USFS Rd. 1, extreme e edge county); on Friday Ridge 1371 Comment
  RSA89625  Thuja plicata E. K. Balls, P. C. Everett 1953-10-13 18653 Humboldt 10.6 mi E of jct of Hwys 101 and 299 between Arcata and Willow Creek. 244 Comment
  UCD134040  Thuja plicata Roman Gankin 1965-8-7 562 Humboldt Near edge of sphagnum bog just north of parking area; Big Lagoon County Park. Comment
  UCD134110  Thuja plicata H. E. Parks 1932-7-25 01139 Humboldt :'Camp 21', Hammond Lumber Company, Trinidad. 152 Comment
  SEINET10613416  Thuja plicata Harold E. Parks 1932-7-25 Parks 1139 Humboldt Camp 21, Hammond Lumber Company, Trinidad. Small trees in bogs. Host of Keithia thujina, a fungus new to California. Herbarium of the University of California Comment
  CAS-BOT-BC88320  Thysanocarpus curvipes L. B. Kildale 1930-6-1 9763 Humboldt Klamath River at Bluff Creek. Comment
  CAS-BOT-BC88321  Thysanocarpus curvipes John H. Thomas 1968-4-21 14355 Humboldt About 6.4 miles south of Weitchpec (as measured along the road). 170 Comment
  HSC6993  Thysanocarpus curvipes J. E. Lankila 1962-5-14 17 Humboldt W bank of river, 0.5 mi. S of Fernbridge Comment
  UC11023  Thysanocarpus curvipes C. C. Marshall 1888-1 Humboldt Comment
  HSC55345  Tiarella trifoliata var. unifoliata Griswold, Butler 1979-7-12 7211 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC98073  Tiarella trifoliata var. unifoliata Cara Witte 2007-7-12 526 Humboldt Forest Service Road 5N10C. Approximately 1 mile south for intersection with Ammon Ridge Road. 1252 Comment
  CAS-BOT-BC436914  Tiarella trifoliata var. unifoliata C. C. Harris; S. K. Harris 1936-6-16 660 Humboldt Yager Road from Carlotta 152 Comment
  JEPS49711  Tiarella trifoliata var. unifoliata W. L. Jepson 1902-6-22 1914 Humboldt Pepperwood on main Eel River (on main Eel River) Comment
  JEPS49714  Tiarella trifoliata var. unifoliata Milo S. Baker 1923-7-19 82 c Humboldt canyon near Carlotta; canyon near Carlotta Comment
  UC1197834  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1933-7-16 12781 Humboldt McKay Camp South Fork Mountain Comment
  UC902124  Toxicodendron diversilobum Joseph P. Tracy 1949-8-8 18404 Humboldt Trinity R. Valley at Willow Creek Trinity R. Valley, Willow Creek 152 Comment
  RSA591513  Tracyina rostrata J. L. Strother 1996-5-30 1363 Humboldt NE of Alderpoint, easterly from Alderpoint-Blocksburg Road, 1km (0.6mi) on unpaved Stewart Ranch Road. 160 Comment
  HSC56957  Triantha occidentalis subsp. occidentalis Overton, Butler 1979-7-23 9470 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  HSC81619  Trichostema laxum Thomas W. Nelson, Jane P. Nelson 1980-8-4 6231 Humboldt Above Alder Springs along old trail 1585 Comment
  JEPS63152  Trichostema oblongum Joseph P. Tracy 1921-8-21 5936 Humboldt Trinity River Valley near Willow Creek Northern Coast Ranges 152 Comment
  HSC17928  Trientalis latifolia Paul Shields May 1955 Humboldt HSC Campus Comment
  HSC44771  Trientalis latifolia Thomas W. Nelson, Jane P. Nelson 1977-7-1 3550 Humboldt Along north side of ridge between Bear and Blanket Creeks, unsurveyed section east of Sec. 25 1494 Comment
  HSC45615  Trientalis latifolia Diane L. Reed 1978-5-7 49 Humboldt Friday Ridge Road, near intersection with Hwy. 299 Comment
  HSC48609  Trientalis latifolia Mark Flippo 1978-4-8 3 Humboldt McKinleyville; Bella Vista Hill Comment
  UC495672  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1929-5-5 8566 Humboldt along South Fork Eel River (Miranda); Northern Coast Ranges 121 Comment
  UC1223387  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1938-5-1 15734 Humboldt along west side of Trinity River (at Willow Creek) Comment
  RSA170210  Trifolium arvense Joseph P. Tracy 1941-7-26 16970 Humboldt Eureka (G Street near 9th) Comment
  UC1223496  Trifolium bifidum var. bifidum Joseph P. Tracy 1935-5-25 13903 Humboldt betw forks of creek; Dobbyn Creek Comment
  UC16434  Trifolium bifidum var. decipiens J. Burtt Davy 1899-6-15 5526 Humboldt Scotia Comment
  UC1197495  Trifolium cyathiferum Joseph P. Tracy 1933-7-15 12735 1/2 Humboldt lower foothills of nw slope; Buck Mtn Comment
  SEINET12157150  Trifolium depauperatum J. P. Tracy 1933-1 12242 Humboldt Petrolia, Mattole Valley Comment
  UC165571  Trifolium depauperatum var. depauperatum Mrs. M. H. Manning 1902-4-27 Humboldt near Hupa Comment
  POM301285  Trifolium dichotomum Joseph P. Tracy 1942-5-16 11555 Humboldt Vicinity of Garberville. 152 Comment
  HSC45171  Trifolium dichotomum R. Sutherland 1978-5-21 3 .21578 Humboldt 433 Comment
  UC16714 Image available Trifolium eriocephalum W. C. Blasdale 1896-6-8 Humboldt near Deer Creek; Mad River; Mad River near Deer Creek, Humboldt Co. Comment
  HSC99714  Trifolium eriocephalum subsp. eriocephalum Glenn W. K. Shelton 2010-7-10 14 Humboldt Due N of Buck Mtn. on FS Rd. 1N08A 1159 Comment
  UC495652  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-7-6 8835 B Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1197024  Trifolium fucatum J. P. Tracy 1901-5-16 1093 Humboldt immediate vicinity Eureka 0 Comment
  SDSU5282  Trifolium incarnatum D. F. Howe 1969-6-3 4623 Humboldt 13 miles north of Orick on # 101. Comment
  HSC31441  Trifolium longipes D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5559 Humboldt Westward lower slopes of Black Lassic near Trinity Co. line. 1585 Comment
  HSC44837  Trifolium longipes subsp. oreganum Thomas W. Nelson, Jane P. Nelson 1977-6-19 3500 Humboldt Above Alder Springs, N of pond 1585 Comment
  JEPS80001  Trifolium macraei Joseph P. Tracy 1927-6-8 8114 Humboldt Trinidad; Northern Coast Region, Trinidad 15 Comment
  HSC100536  Trifolium macraei Carl C. Marshall Jun 1885 50 Humboldt Bear River. Comment
  UC1223356  Trifolium microcephalum Joseph P. Tracy 1939-4-29 16259 1/2 Humboldt Orleans 121 Comment
  UC1602107  Trifolium microcephalum Joseph P. Tracy 1922-4-30 6022 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS65975  Trifolium microcephalum Lincoln Constance 1934-5-23 609 Humboldt above Look Prairie (se slope of mtn); South Fork Eel River, Bull Creek Region Comment
  HSC45134  Trifolium oliganthum R. Sutherland 1978-5-21 2 .21578 Humboldt 433 Comment
  POM162075  Trifolium oliganthum Joseph P. Tracy 1921-4-24 5438 Humboldt Phillipsville. Facing south fork of Eel River. 122 Comment
  HSC34617  Trifolium subterraneum David Ferranti 1974-5-6 Humboldt Garden weed at 43601/2 Union St. Eureka Comment
  HSC45133  Trifolium variegatum R. Sutherland 1978-4-23 22 .23478 Humboldt 732 Comment
  JEPS4144  Trifolium variegatum var. variegatum Joseph P. Tracy 1929-5-5 8570 Humboldt Miranda Northern Coast Ranges, South Fork Eel River 121 Comment
  UC165551  Trifolium willdenovii Mrs. M. H. Manning 1901-4 70 Humboldt near Hupa Comment
  UC169056  Trifolium willdenovii Joseph P. Tracy 1912-5-11 3106 Humboldt near Hydesville; Northern Coast Ranges 30 Comment
  UC1223322  Trifolium willdenovii Joseph P. Tracy 1935-6-8 13945 Humboldt along hwy (at n end of lagoon); Big Lagoon Comment
  CHSC10114  Trifolium wormskioldii J. W. Johnson 1961-8-17 1009 Humboldt Arcata. In a vernal pond community of Hollow 10 W. M. Lanphere Farm. Samoa Peninsula. Comment
  JEPS37725  Trifolium wormskioldii Joseph P. Tracy 1917-5-30 4801 Humboldt Northern Coast Ranges, Little River Beach Little River Beach; Northern Coast Ranges, Little River Beach 6 Comment
  UC1223374  Trifolium wormskioldii Joseph P. Tracy 1950-6-29 18940 Humboldt 6 mi s Arcata (Fickle Hill) Comment
  HSC15181  Trifolium wormskioldii Joel W. Reinhard 1966-5-14 40 Humboldt Two beaches N of College Cove. Comment
  SEINET12156843  Trifolium wormskioldii J. P. Tracy 1938-1 16056 Humboldt Field's Landing, 2 mi S of town 6 Comment
  HSC98737  Trillium albidum Cara Witte 2007-5-26 656 Humboldt 3/4 mile south of Titlow Hill. 1422 Comment
  RSA46966  Trillium albidum E. N. Crosby 1935-3-10 66 Humboldt Blue Lake Comment
  HSC15688  Trillium albidum D. E. Anderson 1963-5-25 2475 Humboldt 5 mi. N of Capetown along rd. Comment
  HSC15715  Trillium albidum D. W. Snell 1964-4-18 46 Humboldt Mad River bottom 3 mi. N of Blue Lake Comment
  HSC101808  Trillium kurabayashii Kjirsten A. Wayman 2012-4-1 304 Humboldt Hoopa, 0.3 miles up Bair Road, near Supply Creek 168 Comment
  CAS-BOT-BC133390  Trillium ovatum Alice Eastwood 1939-3-19 18899 Humboldt Bolling Grove Comment
  RSA24327  Trillium ovatum Carl B. Wolf 1941-2-28 9972 Humboldt 1.3 miles east of Redwood Creek Bridge. On the Blue Lake to Willow Creek Road. 244 Comment
  SDSU11980  Trillium ovatum W. A. Bemis 1964-3-14 247 Humboldt 48 Comment
  SEINET12050374  Trillium ovatum F. H. Utech 1988-1 88 -276 Humboldt 14 mi W of Bridgeville enroute to Carlotta on CA 36, Van Duzen County Park, Pamplin Grove 50 Comment
  SEINET3888797  Trillium ovatum S. R. Johnson 1965-3-19 15 Humboldt 2 miles north of Luffenholtz Beach.; 0 Comment
  UC1197816  Trillium ovatum Joseph P. Tracy 1930-7-16 8967 Humboldt forest near McKay Camp McKay Camp; S. Fork Mt. 1676 Comment
  HSC100565  Trillium sessile Carl C. Marshall Apr 1884 393 Humboldt Hoopa Valley. Comment
  SEINET10458940  Triodanis biflora Tracy TRACY 2198 Humboldt EUREKA Comment
  SEINET3821241 Image available Triodanis perfoliata Joseph P. Tracy 1908-7-1 2912 Humboldt Ridge between Van Duzen and Mad Rivers Comment
  SEINET13761905  Triphysaria eriantha subsp. eriantha R. R. Halse 2016-1 9683 Humboldt Along U.S. Hwy 101 ca., 9.5 mi S of Garberville, just N of the Mendocino County Line. 168 Comment
  UC902255  Triphysaria eriantha subsp. eriantha Joseph P. Tracy 1944-5-14 17465 Humboldt at Bucksport (near Eureka); , at Bucksport 6 Comment
  CHSC52957  Triphysaria eriantha subsp. rosea L. P. Janeway 1984-4-11 729 Humboldt On the North Spit of Humboldt Bay; northwest of the boat ramp and north of the Coast Guard Sta. 4 Comment
  HSC20860  Triphysaria versicolor subsp. faucibarbata C. O. Baker 1962-5-7 36 Humboldt 2 mi. S of Trinidad along old Hwy. 101 122 Comment
  JEPS10442  Triphysaria versicolor subsp. versicolor W. L. Jepson 1902-6 1919 Humboldt fields about Eureka (<Expedition from Ukiah to the Hupa Indian Reservation>); fields about Eureka Comment
  HSC98871  Trisetum canescens Cara Witte 2007-7-8 443 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  UC526693  Trisetum canescens Joseph P. Tracy Jul 16 1930-Jul 19 1930 8916 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  SEINET5424014  Trisetum canescens J. B. Davy, W. C. Blasdale 5036 Humboldt Walkers Valley, hwy 25 Comment
  UC40083  Trisetum cernuum Harley P. Chandler May, 1901 1176 Humboldt Humboldt Bay; North Coast Ranges 30 Comment
  HSC98957  Triteleia hyacinthina Cara Witte 2008-7-28 952 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1565 Comment
  UCSB13001  Triteleia hyacinthina Muller, Katherine 1954-6-21 Humboldt Olson Creek, 2 mi E. NE. of Mad River Comment
  UC180201  Triteleia laxa Joseph P. Tracy 1914-5-14 4453 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  UCD139410  Triteleia laxa Joseph P. Tracy 1942-6-15 17129 Humboldt Humboldt County Englewood, Natural prairie, near Redcrest resort. 91 Comment
  CAS-BOT-BC526349  Triteleia laxa Ira L. Wiggins 1932-6-18 5876 Humboldt Mouth of Little River Comment
  HSC79549  Triteleia laxa Kenneth Clark 1980-6-14 667 Humboldt On western slope above Dead Man's Gulch (near parking access) 145 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
  UC175816  Triteleia laxa Joseph P. Tracy 1913-6-19 4210 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  SDSU2008  Tsuga heterophylla D. F. Howe 1963-7-7 3616 Humboldt 5 miles north of Orick on #101. Comment
  UCD170577  Tsuga heterophylla Gordon Leppig 1998-4-7 732 Humboldt Berry Summit on west slope, Rt. 299. 762 Comment
  CAS-BOT-BC213075  Ulex europaeus Doris K. Kildale 1925-12-27 1448 Humboldt Kneeland Prairie road near junction with old road 609 Comment
  CAS-BOT-BC91110  Umbellularia californica Doris K. Kildale 1927-2-28 2987 Humboldt Bug Creek. Upper Mad River. 792 Comment
  HSC60132  Umbellularia californica M. A. Baker 1977-6-6 384 Humboldt Hoopa Comment
  UC915720  Umbellularia californica W. L. Jepson 1903-6-13 36 Humboldt Briceland Comment
  UCD170579  Urtica dioica subsp. gracilis Gordon Leppig 1998-4-13 736 Humboldt Arcata, Anvick Rd. 12 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
  HSC49505  Utricularia macrorhiza R. York 1979-4-13 225 Humboldt Behind grammar school in Fieldbrook. Comment
  POM131979  Vaccinium arbuscula Joseph P. Tracy 1906-4-29 2425 Humboldt Eureka. Comment
  UC1197778  Vaccinium cespitosum Joseph P. Tracy 1925-7-5 7176 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC562347  Vaccinium cespitosum Joseph P. Tracy 1933-7-16 12792 Humboldt near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1737 Comment
  CAS-BOT-BC199223  Vaccinium membranaceum Joseph P. Tracy 1935-7-22 14121 Humboldt Forks of Tish-Tang-a-Tang Creek, Trinity Summit 1371 Comment
  UC1197782  Vaccinium membranaceum Joseph P. Tracy 1932-7-20 10741 Humboldt Forks of Tish-Tang-A-Tang Creek Trinity Summit 1371 Comment
  CAS-BOT-BC199318  Vaccinium ovatum Joseph P. Tracy 1948-10-24 18257 Humboldt Near Fruitland 304 Comment
  HSC100479  Vaccinium ovatum Carl C. Marshall Mar 1886 140 Humboldt Near coast everywhere. Comment
  HSC104091  Vaccinium ovatum Monica Rodriguez, William A. Worley 2015-2-21 9 Humboldt Rock Creek Ranch; 8.2 mi. along South Fork Rd. from Redwood Highway 199. 131 Comment
  HSC34153  Vaccinium ovatum Linda M. Barker 1974-5-11 186 Humboldt Redwoods National Park, beside Bald Hills Road 366 Comment
  HSC7909  Vaccinium ovatum C. B. Wolf 1927-8-27 1159 Humboldt Klamath River, 2 mi. below the mouth of the Salmon River Comment
  UC1121133  Vaccinium ovatum A. E. Wieslander 1931-5-21 214 Humboldt Kneeland China Flat Quad. Comment
  UC1193357  Vaccinium ovatum R. H. Neuns 1950-7-13 133 Humboldt 3 mi s Alder Point (Quad. 29D2) 548 Comment
  UC1121143  Vaccinium parvifolium A. E. Wieslander 1931-5-19 205 Humboldt Near Orleans; Klamath Forest, Hoopa Quad. Comment
  CAS-BOT-BC199493  Vaccinium uliginosum Joseph P. Tracy 1932-7-14 10564 Humboldt Trinity Summit, Corral Prairie 1584 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
  HSC102033  Valeriana sitchensis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 936 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 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
  HSC3380  Vancouveria hexandra J. F. Knezevich 1968-5-21 448 Humboldt 20 mi. E of Arcata on Hwy. 299 at Lord Ellis Summit Comment
  HSC48842  Vancouveria hexandra Brad Klipfel 1973-7-15 198 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC63004  Vancouveria hexandra David Wheeler 1979-5-17 116 Humboldt Stagecoach Rd., 1 mi. from Post Office in Trinidad Comment
  UC1541238  Vancouveria hexandra Harold E. Parks May 1933 4288 Humboldt near Trinidad; near Trinidad Comment
  CAS-BOT-BC76086  Vancouveria planipetala L. R. Abrams 1918-6-16 7189 Humboldt Willow Creek. Comment
  CAS-BOT-BC76087  Vancouveria planipetala Ira L. Wiggins 1932-6-18 5865 Humboldt Along Jacoby Creek, 2 miles east of Bayside. Comment
  SEINET10536497  Vancouveria planipetala Mary Susan Taylor 1980-6-11 Taylor 2843 Humboldt Gray Falls Campground, Six Rivers Natl Forest, on W side of Rd 6N56 to foot bridge, on N side of Hwy 299, ca. 2 mi NW of Burnt Ranch. 274 Comment
  UC153947  Veratrum californicum var. californicum Joseph P. Tracy 1910-7-24 3158 Humboldt marshy places at foot of hill 1 1/2 mi s Field's Landing; Northern Coast Region, region about Humboldt Bay 0 Comment
  UC1225852  Veratrum insolitum Joseph P. Tracy 1948-8-15 18120 Humboldt on Ridge 2 mi e Grove's Prairie; Trinity Summit 1524 Comment
  UC1198205  Veratrum viride Joseph P. Tracy 1937-8-12 15659 Humboldt Snow Camp 1402 Comment
  UC535722  Verbascum blattaria Eleanor Armstrong 1934-8-18 1178 Humboldt Richardson Grove; along river 121 Comment
  RSA167234  Verbascum blattaria Joseph P. Tracy 1950-7-9 18980 Humboldt Willow Creek canyon, along Trinity Hwy. Comment
  HSC75284  Verbena menthifolia J. O. Sawyer, D. A. Thornburgh 1980-9-9 4084 Humboldt Mill Creek Lake and surrounding meadows Comment
  HSC55608  Veronica americana Walter Overton, Marvin Butler 1979-7-23 9490 Humboldt Near Titlow Hill, close to the town of Willow Creek 1280 Comment
  HSC55883  Veronica americana G. L. Clifton, Terry Griswold 1979-7-25 10956 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  JEPS16845  Veronica americana W. L. Jepson 1932-7-30 16452 Humboldt Bull Creek 121 Comment
  RSA46832  Veronica americana Doris K. Kildale 1926-5-9 1988 Humboldt Kneeland Prairie. Comment
  UCD124661  Veronica americana Malcolm A. Nobs; S. Galen Smith 1949-8-9 1227 Humboldt 1 mile north of Arcata at junction of Highways 101 and 299, Mad River Valley. Comment
  HSC99376  Veronica arvensis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 25 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
  UC1198060  Veronica persica Joseph P. Tracy 1938-6-12 15894 Humboldt opposite mouth of Van Duzen (Eel River, Alton to Fortuna); Eel River 15 Comment
  HSC21208  Veronica persica J. W. Johnson 1962-4-8 1207 Humboldt Arcata, Mad River Co. Park Comment
  HSC28231  Veronica scutellata John R. Keith 1973-5-15 Humboldt Abandoned log pond about 200 yds. E of junction of Guintoli Ln. and West End Rd. Comment
  HSC39612  Veronica serpyllifolia subsp. humifusa Thomas W. Nelson, Jane Nelson 1976-6-15 2716 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  UC1198063  Veronica serpyllifolia subsp. humifusa Joseph P. Tracy 1935-7-23 14152 Humboldt Trinity Summit, at McKay Prairie Trinity Summit; , McKay Prairie 1584 Comment
  HSC58021  Vicia americana var. americana G. L. Clifton 1979-7-31 11826 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC58157  Vicia americana var. americana G. L. Clifton, Griswold 1979-8-2 12211 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  JEPS80004  Vicia americana var. americana Joseph P. Tracy 1935-5-26 13908 Humboldt Iaqua 609 Comment
  UC169307  Vicia hirsuta Joseph P. Tracy 1912-7-7 3738 Humboldt Eureka; Northern Coast Region 0 Comment
  HSC15259  Vicia hirsuta S. J. Roberts 1965-5-2 48 Humboldt Along old railroad Comment
  RSA755059  Vicia hirsuta Robert F. Thorne, Percy C. Everett 1965-8-8 35266 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  HSC89603  Vicia sativa subsp. nigra M. Roantree 1985-4-28 23 Humboldt E side of Trinidad Head, along dirt road Comment
  CHSC35677  Vicia sativa subsp. sativa James P. Smith 1973-5-26 6831 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC15279  Vicia sativa subsp. sativa J. L. Baker 1965-4-2 25 Humboldt Humboldt Meridian, 4 mi. N of Arcata on N Bank Rd. Comment
  SD131841  Vicia tetrasperma Barbara Ertter, Thomas J. Delendick 1987-5-16 6912 Humboldt Hwy 299 roadside ca 8 miles east of Arcata, 9 1/2 mi. West of Lord Ellis summit Comment
  HSC25947  Vicia tetrasperma Thomas W. Nelson 1970-12-1 291 Humboldt River bar of the Eel River north of the Scotia Bluff Comment
  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-BC263942  Viola adunca Mrs. H. C. Cantelow 1941-4-26 s.n. Humboldt 12 miles SW of Ferndale, on road to Cape Mendocino Comment
  HSC98454  Viola adunca Brad Klipfel 1973-4-28 11 Humboldt Along Canyon Creek SW of Korbel Comment
  RSA256721  Viola cuneata D. E. Anderson 1972-6-20 5749 Humboldt Along the Redwood Valley-Hoopa Rd. east of the summit. Comment
  HSC100696  Viola glabella Carl C. Marshall Jun 1886 278 Humboldt Trinity Summit. Comment
  HSC91931  Viola glabella E. Mackey 1986-9-2 Humboldt Patrick's Point State Park Comment
  CAS-BOT-BC536495  Viola glabella Doris K. Kildale 1926-3-21 1593 Humboldt Lawrence Creek 609 Comment
  HSC97481  Viola glabella C. Witte 2007-5-18 36 Humboldt Along National Forest 1. Approximately 1 mile north of intersection with 5N09. 1456 Comment
  HSC97729  Viola glabella C. Witte 2007-5-10 22 Humboldt Board Camp. 1/2 miles from National Forest 1, on Forest Service Road 4N38. 1395 Comment
  UC1103561  Viola glabella Joseph P. Tracy 1923-4-8 6178 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  UC1762506  Viola glabella Milo S. Baker 1947-8-10 11900 Humboldt near end of forest road from Hoopa 1371 Comment
  UC902018  Viola glabella J. P. Tracy 1949-6-5 11655 Humboldt NE of Hawkins Bar; Happy Camp Mt., Trinity Summit Range 1280 Comment
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Jul 4 2012
  HSC32079  Viola hallii D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5593 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  RSA46691  Viola hallii Doris K. Kildale 1938-6-5 15398 Humboldt Horse Mountain Comment
  UCR138879  Viola hallii J. Marshall, J. Savage, L. Allison 1997-5-10 32 Humboldt Humboldt Baseline Meridian: Forest Service Rd. #1, mile marker #8 945 Comment
  HSC21822  Viola ocellata D. E. Anderson 1965-5-1 3557 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  SEINET202728 Image available Viola praemorsa J. P. Tracy 1951-5-20 19403 Humboldt Near Kneeland School House Kneeland Prairie 762 Comment
  UC249588  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1922-5-29 6067 Humboldt Head of South Yager Creek; Northern Coast Ranges, South Yager Creek Comment
  HSC34643  Viola sempervirens Thomas Anthony 1975-4-8 4 Humboldt E of HSU tennis courts on ridge facing Fern Lake from W Comment
  UC1761996  Viola sempervirens Joseph P. Tracy 1913-5-4 4054 Humboldt Kneeland Prarie North Coast Ranges 762 Comment
  RSA12554  Viola sempervirens Carl B. Wolf 1934-7-2 5885 Humboldt Snow Camp. Mountains east of Korbel. 1372 Comment
  HSC70239  Viola sheltonii M. A. Baker 1980-6-8 1903 Humboldt Near Buck Flat. 1554 Comment
  UCD16884  Vitis californica H. Olmo 1934-9-30 s.n. Humboldt California. Humboldt County: on highway near Blue Lake. Comment
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Jun 14 2012
  UCD93442  Vulpia bromoides Linda M. Barker 1976-6-1 1543 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCD93456  Vulpia bromoides A. A. Beetle; G. L. Stebbins Jr., J. P. Tracy 1942-6-2 3459 Humboldt near Loleta Swamp, south of Eureka. Comment
  HSC35018  Vulpia microstachys Thomas W. Nelson 1975-5-24 1878 Humboldt McKeown Ranch, N of Dinsmore. Comment
  CDA28607  Vulpia microstachys var. ciliata G. F. Hrusa 1993-6-17 11224 Humboldt Red Mountain; Entrance gate to Red Mt. Comment
  UC525670  Vulpia microstachys var. microstachys Joseph P. Tracy 1926-5-1 7450 Humboldt Redwood Creek Northern Coast Ranges (at Berry's) 274 Comment
  RSA183638  Vulpia myuros D. E. Anderson 1965-9-5 4088 Humboldt Along Mad River, ca. 3 miles south of Blue Lake. Comment
  SEINET251379 Image available Vulpia myuros var. hirsuta Harley P. Chandler 1186 Humboldt Humboldt Bay Comment
  UC1103718  Vulpia myuros var. hirsuta Joseph P. Tracy 1914-5-14 4432 1/2 Humboldt Fort Seward 106 Comment
  CAS-BOT-BC128815  Whipplea modesta L. R. Abrams 1918-6-16 7145 Humboldt Lower arid Transition Zone, Willow Creek Comment
  HSC74652  Whipplea modesta M. A. Baker 1980-5-17 1225 Humboldt Near Le Perron Peak 792 Comment
  HSC20442  Whipplea modesta Yarick 1960-8-5 Humboldt M&M, 7 mi., Krueger Creek Comment
  HSC76325  Woodwardia fimbriata Teresa Prendusi 1981-7-23 362 Humboldt Near Black Mountain. 890 Comment
  UCD136104  Woodwardia fimbriata K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  JEPS32099  Wyethia angustifolia W. L. Jepson 1902-8-13 1955 Humboldt Green Point Ranch Redwood Creek Comment
  HSC93595  Wyethia longicaulis Gordon Leppig 1998-6-1 872 Humboldt Horse Mtn. Buck Flat, Titlow Hill Rd., at Ammon Ridge Rd. 1524 Comment
  CAS-BOT-BC382122  Xanthium strumarium Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1198219  Xerophyllum tenax Joseph P. Tracy 1933-8-6 12954 Humboldt French Camp Ridge 1066 Comment
  HSC23679  Zeltnera muehlenbergii Tim Baroni 1971-7-5 103 Humboldt 8 mi. E of Petrolia Comment
  UC1198217  Zigadenus fremontii Joseph P. Tracy 1917-6-17 4818 Humboldt bluff back Bucksport (Eureka); Northern Coast Region, Eureka 0 Comment
  HSC74387  Zigadenus micranthus M. A. Baker 1980-6-28 2505 Humboldt Near Mad River Buttes 1445 Comment
  UC176187  Zigadenus micranthus var. micranthus Joseph P. Tracy 1912-6-9 3692 Humboldt Alton Northern Coast Region 30 Comment
  UC249566  Zigadenus micranthus var. micranthus Joseph P. Tracy 1921-5-30 5484 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  RSA684208  Zostera marina R. Setzer 1972-7-29 6992 Humboldt Buhne Point; Humboldt Bay near Eureka. 0 Comment



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