Search Results — 2000 specimen records retrieved (1398 records with coordinates)
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Results for search: County=HUMBOLDT; Source=All;   

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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
  CAS-BOT-BC77966  Abies concolor Doris K. Kildale 1930-8-3 10358 Humboldt Chaparral Mt. at Bug Creek 914 Comment
  HSC98922  Abies concolor var. lowiana Cara Witte 2008-6-13 719 Humboldt Forest Service Road 4N32. 0.5 mi. N of intersection with Forest Service Road 4N32B. 1417 Comment
  CAS-BOT-BC78060  Abies grandis Doris K. Kildale 1926-11-27 2841 Humboldt Alton Hill 45 Comment
  CDA469  Abies grandis D. Spadoni 2000-10-6 PDR# 1142246 Humboldt USFS Rd. 1, Blue Lake. 0 Comment
  POM89804  Abies grandis Joseph P. Tracy 1919-4-6 5725 Humboldt Around Humboldt Bay, Humboldt Hill. 152 Comment
  SDSU1549  Abies grandis W. A. Bemis 1964-4-11 254 Humboldt Mad River, HWY 299. 76 Comment
  RSA0025080  Abronia latifolia Joseph P. Tracy 1901-8-7 1271 Humboldt Sand Hills of Ocean Beach at Samoa, opp. Eureka Comment
  RSA246857  Abronia umbellata subsp. breviflora Robert F. Thorne, P. Everett 1965-8-7 35216 a Humboldt Samoa Peninsula. 0 Comment
Read comments
Jan 13 2015
  RSA28775  Abronia umbellata subsp. breviflora H. E. Parks 1941-09 24212 Humboldt Mouth of Little River. Comment
  RSA186842  Acaena novae-zelandiae T. C. Fuller 1966-10-4 15236 Humboldt 1 mile NW of Fieldbrook Comment
  UC668176  Acer circinatum Joseph P. Tracy 1935-5-26 13911 Humboldt Lawrence Creek at crossing of the Kneeland Road; Lawrence Creek 457 Comment
  UC170174  Acer glabrum var. glabrum Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5780 Humboldt Trinity Summit Comment
  UC502939  Acer glabrum var. glabrum Joseph P. Tracy 1932-7-12 10475 Humboldt head of Brett Hole Klamath Mountains, Trinity Summit 1828 Comment
  HSC58129  Acer glabrum var. torreyi Gilbert Muth 1979-8-1 12124 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  SBBG4087  Acer macrophyllum M. J. Cody 1938-7-14 Humboldt near Trinidad Comment
  HSC37924  Achillea millefolium Peter Sorensen 1976-6-4 Humboldt N Spit Comment
  HSC4562  Achillea millefolium Lincoln Constance 1934-5-29 716 Humboldt Upper Look Prairie; South Fork Eel River 366 Comment
  HSC58006  Achillea millefolium G. L. Clifton, Griswold 1979-7-31 11793 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  JEPS36916  Achillea millefolium Lincoln Constance 1934-5-29 716 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region, Upper Look Prairie 365 Comment
  HSC12754  Achillea millefolium M. J. Athey 1970-12-5 26 Humboldt Along old road to Trinidad Head, Trinidad Comment
  HSC4573  Achillea millefolium John A. DuBois 1962-5-23 31 Humboldt 15 mi. E of Arcata Comment
  RSA167311  Achillea millefolium Joseph P. Tracy 1950-5-30 18712 Humboldt Trinity River Valley, at Willow Creek Comment
  UC419037  Achlys californica H. E. Parks May 1930 752 Humboldt along Van Duzen R. Van Duzen R. Comment
  CAS-BOT-BC400015  Achlys triphylla Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  HSC3338  Achlys triphylla D. E. Anderson 1965-5-1 3575 Humboldt 4-5 mi. W of junction Bluff Creek Rd. and Hwy. 96, along Bluff Creek Rd. Comment
  HSC48482  Achlys triphylla Brad Klipfel 1974-7-23 466 Humboldt Horse Mtn. area Comment
  HSC81935  Achlys triphylla Thomas W. Nelson, Jane Nelson 1979-7-3 4958 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  SEINET5585536 Image available Achnatherum lemmonii Joseph P. Tracy 1926-1 7649 Humboldt Horse Mountain 1524 Comment
  UCD50521  Achnatherum lemmonii Joseph P. Tracy 1951-6-26 19598 Humboldt At Board Camp Mountain, north side, at extreme head of Redwood Creek Comment
  HSC38620  Achyrachaena mollis D. E. Anderson, J. P. Smith 1971-6-21 1103 Humboldt 16.2 miles E of Garberville on road to Alderpoint. Comment
  HSC98302  Acmispon micranthus Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  UC668267  Aconitum columbianum Joseph P. Tracy 1937-8-12 15661 Humboldt Snow Camp 1402 Comment
  HSC102596  Aconitum columbianum subsp. columbianum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1583 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  CAS-BOT-BC418768  Aconogonon phytolaccifolium Joseph P. Tracy 1933-7-26 12921 Humboldt Grouse Mountain 1524 Comment
  HSC56188  Actaea rubra Gilbert Muth 1979-8-1 12125 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC73574  Adenocaulon bicolor Gail Newton 1980-7-14 1511 Humboldt Near Deadman Ridge 1097 Comment
  UC76581  Adenocaulon bicolor Mrs. M. H. Manning 1901-1-1 Humboldt near Hupa Comment
  HSC39158  Adiantum aleuticum D. E. Anderson, J. P. Smith 1971-6-28 - 1250 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  UC1239781  Adiantum aleuticum Joseph P. Tracy 1926-6-20 7636 Humboldt Horse Mt; Northern Coast Ranges 1463 Comment
  UCR123954  Adiantum aleuticum George K. Helmkamp, E. A. Helmkamp 2001-7-8 6969 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  HSC33657  Adiantum aleuticum M. Wetherwax 1975-6-1 173 Humboldt Next to Simpson Cr. Comment
  CAS-BOT-BC65628  Adiantum jordanii Doris K. Kildale 1928-12-30 6767 Humboldt Phillipsville Comment
  UC479099  Aesculus californica Marcus E. Jones, A. M. 1931-7-12 28938 Humboldt Alton Comment
  JEPS18702  Ageratina occidentalis Milo S. Baker 1923-7-21 447 Humboldt Bed of Van Duzen North Coast, Bed of Van Duzen Comment
  CHSC10150  Agoseris grandiflora J. W. Johnson 1961-8-17 1004 Humboldt Arcata. Dune field, W. M. Lanphere Farm, Samoa Peninsula. Comment
  HSC74690  Agoseris grandiflora Gail Newton 1981-8-7 2464 Humboldt Near Board Camp Mtn. 1478 Comment
  POM174060  Agoseris grandiflora Joseph P. Tracy 1918-7-14 5076 Humboldt At Eureka 0 Comment
  UC1222927  Agoseris grandiflora Joseph P. Tracy 1950-6-15 18798 Humboldt 7 mi n, at Jenk's Ranch Harris; Mail Ridge Comment
  UC1222942  Agoseris grandiflora Joseph P. Tracy 1948-8-8 18093 Humboldt Iaqua School House Iaqua Comment
  OBI6922  Agoseris grandiflora var. leptophylla Joseph P. Tracy 1942-7-18 17276 Humboldt N end fo town. Garberville Comment
  HSC99060  Agoseris heterophylla Cara Witte 2007-5-23 89 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  UC582745  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1930-6-21 8775 D Humboldt Larrabee Valley; Northern Coast Ranges 701 Comment
  JEPS71136  Agrostis alba W. L. Jepson 1936-8-17 17920 Humboldt near Still's Ranch (2 mi s of Field's Landing) Comment
  BLMAR321  Agrostis densiflora Jennifer Anthony-Wheeler 2002-8-9 321 Humboldt Lost Coast Headland, Trail to Guthrie creek on west facing slope 60 Comment
  CAS-BOT-BC127288  Agrostis exarata Joseph P. Tracy 1918-7-5 5016 Humboldt Northern Coast Ranges. White Thorn Valley. 304 Comment
  CAS-BOT-BC127299  Agrostis exarata Joseph P. Tracy 1932-7-14 10550 Humboldt Klamath Mountains. Wet Meadow at Corral Prairie. 1524 Comment
  CAS-BOT-BC127323  Agrostis exarata Doris K. Kildale 1926-6-27 2195 Humboldt McClellan Mountain. 822 Comment
  HSC8785  Agrostis exarata D. E. Anderson 1961-8-25 1743 Humboldt Beach area 1.5 miles S of Trinidad. Comment
  HSC8788  Agrostis exarata D. E. Anderson 1963-10-6 2882 Humboldt Mad River bars, across from Essex Junction. Comment
  JEPS75421  Agrostis exarata W. L. Jepson 1932-7-30 16451 Humboldt in redwood forest Bull Creek 121 Comment
  POM126173  Agrostis exarata Joseph P. Tracy 1904-7-31 2127 Humboldt Eureka. 0 Comment
  UC181242  Agrostis exarata Joseph P. Tracy 1913-7-13 4359 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  UC184873  Agrostis exarata Joseph P. Tracy 1912-7-31 3892 Humboldt Burr Valley, on nw slope of Buck Mountain, stream bank Northern Coast Ranges, Burr Valley, Buck Mountain 1066 Comment
  UC204531  Agrostis exarata Joseph P. Tracy 1918-7-21 5085 Humboldt around Humboldt Bay (mossy bog); Northern Coast Ranges, Humboldt Hill 91 Comment
  CHSC35527  Agrostis gigantea Thomas Nelson; James Nelson 1976-7-28 3046 Humboldt West of Alder Springs along 2S08. 1554 Comment
  BLMAR26  Agrostis hallii Brad Barr June, 1982 26 Humboldt King range, Spanish Ridge Comment
  BLMAR533  Agrostis hallii Jennifer Wheeler 2009-6-23 533 Humboldt King range, On King Peak road Comment
  HSC72675  Agrostis hallii J. P. Smith 1977-7-3 9257 Humboldt Six Rivers National Forest. FS Rd. 13N01, 3 mi. from its junction with Hwy. 36 549 Comment
  UC187288  Agrostis hallii J. P. Tracy 1900-7-4 876 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa Comment
  UC188851  Agrostis hallii Joseph Burtt Davy 1899-6-16 5564 Humboldt Alton Comment
  UCSC000097  Agrostis hallii H. S. Yates 1936-6-16 5674 Humboldt 1 mile N.E. of Samoa Samoa - Eureka 3 Comment
  UCD53043  Agrostis microphylla Joseph P. Tracy 1936-6-8 14873 Humboldt Trinidad. 3 Comment
  CAS-BOT-BC139127  Agrostis oregonensis Joseph P. Tracy 1927-8-22 8344 Humboldt Northern Coast Ranges. Bald Mountain. Near High Prairie. 1066 Comment
  UC526879  Agrostis oregonensis Joseph P. Tracy 1925-7-5 7173 Humboldt in cold wet meadow near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  CAS-BOT-BC139061  Agrostis pallens Joseph P. Tracy 1935-7-28 14335 Humboldt Trinity Summit. Head of Brett Hole. 1828 Comment
  SEINET3127763  Agrostis pallens J. B. Davy 1899-6-13 5521 Humboldt Near Pepperwood Comment
  RSA126092  Agrostis stolonifera Joseph P. Tracy 1902-7-4 1758 Humboldt [Unspecified] Comment
  UCD53504  Agrostis stolonifera Leo C. Waters 1931-9-1 s.n. Humboldt Eureka. Comment
  UC552778  Agrostis thurberiana Joseph P. Tracy 1934-7-18 13453 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  SBBG21792  Ailanthus altissima D. Myrick 1964-7-26 978 Humboldt Hwy 299, ca. 15 mi E of Arcata 762 Comment
Read comments
Feb 4 2016
  SEINET3917484  Aira praecox Joseph P. Tracy 1941-6-15 16906 Humboldt Wilder Ridge, east of Kings Peak.; 0 Comment
  UCR199659  Aira praecox R. F. Thorne, Percy C. Everett 1965-8-9 35308 Humboldt Northwestern; Outer North Coastal region, Big Lagoon 3 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
  RSA46840  Allium campanulatum Doris K. Kildale 1927-7-22 3815 Humboldt Lasseck s Peaks Comment
  HSC73536  Allium falcifolium Gail Newton 1980-7-14 1497 Humboldt Near Last Chance Ridge. 1219 Comment
  CAS-BOT-BC239  Allium grandisceptrum Mrs. W. W. Hutchinson 1924-6-1 s.n. (Herbarium A. Davidson no. 3595 ) Humboldt Garberville Comment
  SEINET3884719  Allium hoffmanii Thomas W. Nelson, James Nelson 1980-6-10 5418 Humboldt Blocksburg Quad. Along road to Red Mountain 0.5 miles west of junction with Swayback Ridge Road.; 0 1372 Comment
  UC1197756  Allotropa virgata Arthur E. Connick 1926-5-1 Humboldt between Hoopa and Willow Creek (Northern Coast Ranges, Sugar Bowl Mountain); Northern Coast Ranges, Sugar Bowl Mountain 304 Comment
  UC412886  Allotropa virgata Mrs. M. H. Manning 1901-1 Humboldt Hupa Comment
  HSC63153  Allotropa virgata M. A. Baker 1979-6-30 973 Humboldt 800 Comment
  RSA46861  Alnus rhombifolia Doris K. Kildale 1926-12-13 1428 Humboldt Bridgeville, bank on Van Duzen. 229 Comment
  HSC12852  Alnus rubra C. E. Fellows 1970-11-28 318 Humboldt Arcata, HSC Campus, SW of science building Comment
  UCSC000176  Alnus rubra G. T. Nordstrom 1933-6-30 1425 Humboldt 1 mile N.N.E. of Orick 3 Comment
  RSA46662  Alnus viridis subsp. sinuata Doris K. Kildale 1937-9-26 15377 Humboldt Snow Camp. Comment
  SEINET201016  Alnus viridis subsp. sinuata J. P. Tracy 1947-8-24 17913 Humboldt Trinity Summit near Box Camp 1524 Comment
  UC1145047  Alopecurus geniculatus Joseph P. Tracy 1938-7-15 16063 Humboldt mouth of Elk R. near Eureka 6 Comment
  UC673032  Amaranthus albus Joseph P. Tracy 1940-10-15 16756 Humboldt Willow Creek Trinity River Valley 152 Comment
  BLMAR296  Ambrosia chamissonis Jennifer Anthony-Wheeler 2002-6-25 296 Humboldt King range, Growing in dune mat 3 Comment
  CDA9965  Ambrosia chamissonis T. C. Fuller 1958-6-17 1905 Humboldt Zanone Ranch, Cape Mendocino. 0 Comment
  HSC18509  Amelanchier alnifolia H. E. Parks, J. P. Tracy 1925-6-25 2775 Humboldt Lawrence Creek Comment
  CAS-BOT-BC143014  Amelanchier utahensis H. E. McMinn 1922-8-5 343 Humboldt Along Van Duzen River Comment
  HSC39948  Ammophila arenaria Linda M. Barker 1976-6-22 1624 Humboldt 3 mi. W of Arcata Comment
  CAS-BOT-BC213954  Amsinckia H. E. Parks; J. P. Tracy 1930-5-25 881 Humboldt Near Bridgeville. Comment
  HSC68320  Anagallis arvensis J. P. Smith 1973-5-26 6817 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  SEINET8734419 Image available Anaphalis margaritacea H. E. Parks, S. T. Parks 1943-1 24237 Humboldt Stone Lagoon Comment
  CAS-BOT-BC391777  Anemone deltoidea Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC56303  Anemone deltoidea Overton, Butler 1979-8-2 12610 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC98105  Anemone deltoidea Cara Witte 2007-6-27 365 Humboldt Forest Service Road 5N04. Near Grouse Mountain. Approximately 1/2 mile east of spring. 1561 Comment
  JEPS60507  Anemone deltoidea W. L. Jepson 1902-6-22 1913 Humboldt Pepperwood Comment
  UC1196193  Anemone oregana Joseph P. Tracy 1928-4-1 8408 Humboldt Big Lagoon; North Coast Region 60 Comment
  UC1197383  Angelica genuflexa Joseph P. Tracy 1937-7-17 15442 Humboldt 2 mi s of Fields Landing (near Still Ranch); Northern Coast Region 6 Comment
  UC582657  Angelica hendersonii Joseph P. Tracy 1936-10-24 15205 Humboldt Table Bluff 91 Comment
  HSC41310  Angelica tomentosa Brad Klipfel 1974-9-2 545 Humboldt Horse Mtn. Comment
  CAS-BOT-BC271495  Anisocarpus madioides Harley P. Chandler 1901-6-1 1313 Humboldt Hupa Indian Reservation 152 Comment
  UC169316  Anisocarpus madioides Joseph P. Tracy 1908-6 2878 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  UC175968  Anisocarpus madioides Joseph P. Tracy 1911-6-4 3213 Humboldt 5 mi from coast (along Little River); Northern Coast Region, Little River 121 Comment
  UC34553  Anisocarpus madioides Chesnut and Drew 1888-7-10 Humboldt Jarnigans Comment
  CAS-BOT-BC271494  Anisocarpus madioides Mark Bransom; Daniel Brown; Ron Hildebrandt; Nina Meiselman 1986-4-19 23 Humboldt 1 1/2 mi. west of Burnt Ranch on R. 299, Burnt Ranch Campground Comment
  HSC45639  Anisocarpus madioides Diane L. Reed 1978-5-7 50 Humboldt Friday Ridge Road, near Hwy. 299 Comment
  HSC56443  Antennaria howellii Griswold, Butler 1979-7-12 7190 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC10097  Anthoxanthum occidentale D. E. Anderson 1963-3-23 2401 Humboldt 2 mi. N of Beaver School Comment
  RSA286350  Anthoxanthum odoratum R. F. Thorne 1974-7-29 45071 Humboldt Samoa Dunes: between Humboldt Bay and Pacific Ocean. Comment
  HSC37848  Anthriscus caucalis Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  JEPS83361  Antirrhinum vexillocalyculatum subsp. breweri David M. Thompson 1983-6-26 353 Humboldt about 2 mi se Miranda (0.9 mi wnw of Franklin K. Lane Redwood Grove, Phillipsville vicinity, on nnw side of Avenue of the Giants); Phillipsville, Garberville Quad. (15', 1951) 121 Comment
  SD120899  Antirrhinum vexillocalyculatum subsp. breweri David M. Thompson 1983-6-30 359 Humboldt Willow Creek. Forest Service Road 10N02 (to Waterman Ridge and Horse Linto Creek), 0.8 miles N of junction with Sunset Pl. 2.7 miles from start of Patterson Road(at end of River Road, 0.9 miles from Hwy. 299 in Willow Creek 213 Comment
  HSC97622  Apocynum androsaemifolium Cara Witte 2007-6-19 301 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 Comment
  HSC98059  Apocynum androsaemifolium Cara Witte 2007-7-11 498 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  JEPS49816  Apocynum cannabinum Lincoln Constance 1934-6-11 848 Humboldt trail along e. bank of S. Fork of Eel N. Dyerville Flat; S. Fork Eel R., Bull Creek Region, N. Dyerville Flat Comment
  UC725497  Apocynum cannabinum A. A. Heller 1923-7-10 13794 Humboldt Eel R. between Scotia and Pepperwood; Eel R Comment
  RSA21323  Apocynum pumilum var. rhomboideum C. B. Wolf 1937-8-13 s.n. Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  HSC76368  Arabis breweri var. breweri Denis Kearns 1981-7-21 293 Humboldt Near Whiteys Peak 1585 Comment
  HSC32155  Arabis breweri var. breweri D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5595 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  OBI20498  Aralia californica Carl B. Wolf 1937-9-8 9302 Humboldt North Coast Range, Bull Crk-Petrolia Rd, 12 mi W of Redwood hwy 457 Comment
  HSC98739  Arbutus menziesii Cara Witte 2008-5-26 661 Humboldt Along Forest Service Road 5N10. 1/2 mile south of intersection with Friday Ridge Road. 1487 Comment
  CAS-BOT-BC407747  Arceuthobium abietinum Doris K. Kildale 1926-9-5 2634 Humboldt Lasseck's Peaks, between Goat Camp and Signal Peak 1661 Comment
  UC180210  Arctium minus Joseph P. Tracy 1914-10-4 4631 Humboldt Table Bluff Northern Coast, Humboldt Bay 0 Comment
  UC775000  Arctostaphylos Carl B. Wolf 1937-8-13 9226 Humboldt 8 mi e Hoopa Valley; North Coast Range 1219 Comment
  SDSU1488  Arctostaphylos canescens D. F. Howe 1965-8-12 4129 Humboldt 7.9 miles south of Honeydew. 610 Comment
  SEINET11984830  Arctostaphylos canescens Unknown 1965-1 540 Humboldt on USAL Road, 23 mi N of junction with CA 1 & 2.7 mi S of junction of Four Corners Comment
  JEPS109812  Arctostaphylos canescens subsp. sonomensis Dean W. Taylor 2004-4-15 19056 Humboldt Titlow Hill Road, 2.5 miles South of Berry Summit on Hwy 299 1112 Comment
  CAS-BOT-BC23763  Arctostaphylos columbiana H. E. Parks 1931-3-25 0917 Humboldt Near Patrick's Point 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-BC23779  Arctostaphylos columbiana Joseph P. Tracy 1936-8-24 15170 Humboldt Fickle Hill, 6 mi. SE of Arcata 609 Comment
  CAS-BOT-BC23783  Arctostaphylos columbiana Joseph P. Tracy 1934-3-11 13152 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC23791  Arctostaphylos columbiana C. Hart Merriam 1921-8-16 s.n. Humboldt Near summit of Berry Mountain, between Willow Creek and Arcata. Comment
  CAS-BOT-BC23794  Arctostaphylos columbiana C. Hart Merriam 1920-9-18 s.n. Humboldt Berry Mt. between Trinity River and Redwood Creek Comment
  CAS-BOT-BC23795  Arctostaphylos columbiana C. Hart Merriam 1920-9-19 s.n. Humboldt Berry Mt. between Trinity River and Redwood Creek Comment
  HSC68133  Arctostaphylos columbiana J. P. Smith, J. O. Sawyer 1975-4-6 8052 Humboldt 3 mi. N of Whitehorn, across from the CA Dept. of Forestry Fire Station Comment
  UC1225901  Arctostaphylos columbiana Joseph P. Tracy 1948-3-13 17955 Humboldt Table Bluff 91 Comment
  UC582665  Arctostaphylos columbiana Joseph P. Tracy 1937-7-17 15439 Humboldt Eureka 45 Comment
  RSA15551  Arctostaphylos columbiana var. columbiana C. B. Wolf 1927-8-30 1241 Humboldt Paradise, 5 or 6 miles N of Ettersburg. Comment
  HSC54509  Arctostaphylos glandulosa Overton, Butler 1979-7-23 9415 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  SD230217  Arctostaphylos glandulosa subsp. glandulosa Louis C. Wheeler 1959-8-1 7621 Humboldt Queens Peak Mine. Comment
  SD42559  Arctostaphylos hispidula Carl B. Wolf 1937-8-13 9226 Humboldt 8.0 miles east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  CAS-BOT-BC24371  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1927-3-10 2993 Humboldt Dobbyns Creek. Comment
  CAS-BOT-BC24374  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1926-9-5 2614 Humboldt Lasseck's Peaks - near trail to Red Peak. 1661 Comment
  CAS-BOT-BC24375  Arctostaphylos manzanita subsp. manzanita J. P. Smith; John O. Sawyer 1975-4-6 8051 Humboldt 3 mi. n. of Whitethorn, across from the Califonria Dept. of Forestry Fire Station. Comment
  CHSC110738  Arctostaphylos manzanita subsp. manzanita Dean Wm. Taylor 2011-5-4 21118 Humboldt Larabee Valley, along Highway 36 about 1 mile east of the eastern end of the valley at the bridge for the Little Van Duzen River, 701 Comment
  RSA152312  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1942-9-6 17306 Humboldt Dinsmore's along Van Duzen River, opposite Buck Mountains. 762 Comment
  CAS-BOT-BC45881  Arctostaphylos nevadensis Joseph P. Tracy 1927-6-12 8132 Humboldt Horse Mountain 1432 Comment
  HSC102094  Arctostaphylos nevadensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 997 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  CAS-BOT-BC40029  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1934-3-11 13154 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC40061  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1935-6-23 13991 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC40064  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1934-3-11 13160 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC40065  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1934-3-11 13154 Humboldt French Camp Ridge 1066 Comment
  SEINET11989093  Arctostaphylos nevadensis subsp. knightii R. Gankin, Hildreth, W. R. 1967-1 1177 Humboldt 21.4 mi E of US 101 on Bald Hills Rd from Orick, French Camp Ridge Comment
  HSC98995  Arctostaphylos patula Cara Witte 2008-7-10 865 Humboldt Forest Service Road 4N06A. Cow Creek Ridge. 1 mile east of National Forest 1. Under powerlines. 1254 Comment
  HSC99103  Arctostaphylos patula Cara Witte 2008-8-6 1019 Humboldt Along National Forest 1, on Kinsey Ridge. North of White Oak Opening. 1246 Comment
  CAS-BOT-BC43998  Arctostaphylos uva-ursi Myrtle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC7732  Arctostaphylos uva-ursi J. R. Woodside 1963-3-23 37 Humboldt 1 1/4 mi. N of Fairhaven Comment
  UC21913  Arctostaphylos uva-ursi Harley P. Chandler May 1901 1133 Humboldt Humboldt Bay North Coast Ranges 3 Comment
  UCSB15774  Arctostaphylos uva-ursi 1962-6-7 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  RSA1903  Arctostaphylos uva-ursi var. coactilis C. B. Wolf 1930-10-28 1035 Humboldt Samoa. 15 Comment
  RSA246677  Arctostaphylos uva-ursi var. coactilis R. F. Thorne, Percy C. Everett, K. Thorne 1965-8-5 35156 Humboldt Samoa Dunes. 3 Comment
  RSA254756  Arctostaphylos uva-ursi var. coactilis Thomas W. Nelson 1974-4-20 1181 Humboldt Elk Head north of Trinidad. Comment
  RSA518162  Arctotheca calendula G. D. Barbe 1988-7-18 4293 Humboldt Ferndale: Larry Pries Dairy, 3.4 mi. W of Main St, on Centerville Beach Road. Comment
  UC668127  Arenaria congesta var. suffrutescens Joseph P. Tracy 1932-7-12 10478 b Humboldt Head of Brett Hole Trinity Summitt, Brett Hole 1828 Comment
  UC562472  Armeria maritima subsp. californica Joseph P. Tracy 1927-6-8 8115 Humboldt Trinidad; sandy slopes facing ocean 3 Comment
  UC668211  Arnica cernua Joseph P. Tracy 1938-6-13 15902 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC82647  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt Trinity Summit, Fir Woods near Corral Prairie 1524 Comment
  SEINET11837491  Arnica tomentella J. P. Tracey 1950-1 19273 Humboldt 2 mi E of town, on trail to Croghan Hole. Trinity Summit, near Box Camp 1524 Comment
  CAS-BOT-BC146268  Arrhenatherum elatius var. elatius T. C. Fuller 1966-10-4 15237 Humboldt Northwest portion of Arcata. Comment
  HSC75260  Artemisia douglasiana J. O. Sawyer, M. A. Ericksen 1980-8-18 4054 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  UC302288  Artemisia douglasiana Joseph P. Tracy 1926-9-6 7796 Humboldt near South Fork; Trinity River Valley Comment
  UCD20406  Artemisia douglasiana Donald C. Hagar 1957-8-6 206 Humboldt 10 miles ENE of Hoopa, Jackson Hole. 1645 Comment
  CAS-BOT-BC90867  Artemisia pycnocephala H. E. Parks 1941-8-1 24186 Humboldt Little River State Park Comment
  UC1199379  Artemisia pycnocephala Joseph P. Tracy 1918-7-28 5089 Humboldt ocean beach at Humboldt Bay 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
  UC205568  Artemisia suksdorfii Joseph P. Tracy 1918-7-1 4973 Humboldt 3 mi s point of cape; Northern Coast Ranges, Cape Mendecino 3 Comment
  UC466610  Aruncus dioicus var. pubescens Joseph Burtt Davy and Walter C. Blasdale 1899-5 5722 Humboldt Supply Creek; North Coast Ranges, Hoopa Valley Comment
  CAS-BOT-BC453344  Aruncus dioicus var. vulgaris C. D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC453345  Aruncus dioicus var. vulgaris Doris K. Kildale 1930-6-1 9747 Humboldt Klamath River at Weitchpec Comment
  SEINET3873461  Asarum caudatum Richard R. Halse 2011-3-25 8163 Humboldt Along U.S. Hwy 101 ca 2.8 miles south of Stafford, near Exit 674.; 0 74 Comment
  HSC26878  Asarum caudatum Clifton Raymond Chesbrough 1973-6-19 83 Humboldt .5 mi. S of Trinidad along the coast Comment
  RSA167427  Asclepias cordifolia Joseph P. Tracy 1950-7-15 19043 Humboldt Trinity River, E side, 1 mile N of mouth of Willow Creek. Comment
  UC249520  Asclepias speciosa Joseph P. Tracy 1922-9-3 6114 Humboldt Klamath River at Bluff Creek Northern Coast Ranges, Klamath River 91 Comment
  CAS-BOT-BC65940  Aspidotis densa Harley P. Chandler 1901-6-1 1380 Humboldt Hupa Indian Reservation 152 Comment
  HSC97473  Aspidotis densa Cara Witte 2007-5-23 91 Humboldt Approximately 2 miles from intersection with 4N70 (Grouse Mountain Lookout Road) on 4N32. 1395 Comment
  UC62541  Aspidotis densa Harley P. Chandler June, 1901 1380 Humboldt Hupa Indian Reservation; North Coast Ranges 152 Comment
  HSC44408  Aspidotis densa R. York 1978-5-6 160 Humboldt Along Bluff Creek Rd., 4 mi. from Jct. with Hwy. 96 610 Comment
  RSA33737  Aster chilensis F. W. Peirson 1923-7-11 3882 Humboldt 7 miles north of Arcata. Comment
  RSA18141  Aster chilensis C. B. Wolf 1927-8-22 808 Humboldt 1 mile south of Orick. Comment
  UC502991 Image available Astragalus agnicidus Henry Tosten 1931-6-7 Humboldt 4 mi s Miranda (near Bear Buttes, on Tosten & Pierce Ranch) 762 Comment
  HSC74723  Astragalus purshii Gail Newton 1981-7-23 2267 Humboldt Near Bug Creek Butte 1494 Comment
  UC1222420  Astragalus umbraticus Joseph P. Tracy 1940-8-25 16706 Humboldt at Lake Prairie , at Lake Prairie (Bald Mountain) 1066 Comment
  HSC41268  Asyneuma prenanthoides Brad Klipfel 1974-7-23 462 Humboldt Horse Mtn. Comment
  HSC76274  Asyneuma prenanthoides Denis Kearns 1981-7-23 370 Humboldt Near Whiteys Peak 732 Comment
  OBI1144  Athyrium filix-femina Robert J. Rodin 1941-8-2 Humboldt Under redwood trees in shady places near Pepperwood Comment
  CAS-BOT-BC69523  Athyrium filix-femina subsp. cyclosorum Doris K Niles 1948-4-17 3 Humboldt Peugh Road Creek, 1 mi. e. of Loleta. Comment
  HSC92400  Athyrium filix-femina var. cyclosorum L. P. Janeway 1984-5-13 781 Humboldt Along Redwood House Rd. 1.5 mi. from Hwy. 36 229 Comment
  JEPS35139  Athyrium filix-femina var. cyclosorum W. L. Jepson 1932-8-8 16529 Humboldt hill above Weott Comment
  HSC69756  Atriplex prostrata Thomas W. Nelson 1977-9-22 3751 Humboldt Along E side of State Rte. 101, N of Eureka airport Comment
  HSC93742  Atriplex prostrata Gordon Leppig, Sylvia Leppig 1998-9-17 1100 Humboldt Arcata Marsh and Wildlife Sanctuary, W of railroad trestle 2 Comment
  HSC9031  Avena barbata Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  RSA10053  Avena fatua Joseph P. Tracy 1933-5-20 12229 Humboldt Cape Mendocino. Southwestern slopes, fronting the ocean, three miles south of point of the cape. Comment
  SEINET200595 Image available Azolla caroliniana J. P. Tracy 1911-6-25 3245 Humboldt Covering several acres of pool back of Holmes Mill Bucksport northern coast region of California Comment
  CAS-BOT-BC66223  Azolla filiculoides Malcom A. Nobs; S. Galen Smith 1949-8-9 1246 Humboldt Clam Beach Comment
  HSC933  Azolla microphylla H. E. Parks 1925-6-24 2763 Humboldt Eureka, Comment
  UC164794  Baccharis glutinosa J. P. Tracy 1900-9-3 937 Humboldt immediate vicinity of Eureka 0 Comment
  HSC90230  Baccharis pilularis subsp. consanguinea L. Watson, J. Meninga Aug 1990 3 Humboldt Near Manilla. Mad River Slough and Dunes, 50 ft. from parking lot, E of trail Comment
  HSC5115  Baccharis pilularis subsp. pilularis Paul Shields 1955-9-29 Humboldt 1/2 mi. S of Fernbridge Comment
  POM52329  Balsamorhiza hookeri var. lagocephala Geo. D. Butler 1910-4-9 1157 Humboldt Dry hill near Eureka Comment
Read comments
Dec 1 2014
  UC1198286  Barbarea orthoceras Joseph P. Tracy 1906-5-6 2443 Humboldt hillside in Wolverton Gulch, near Hydesville 60 Comment
  HSC7002  Barbarea verna W. F. Nickel 1965-4-22 Humboldt HSU campus between the Wildlife and Biological Science buildings Comment
  CAS-BOT-BC145787  Beckmannia syzigachne Joseph P. Tracy 1928-6-24 8472 Humboldt Valley of South Yager Creek. 762 Comment
  CAS-BOT-BC106354  Bellis perennis W. R. Dudley 1899-1-1 s.n. Humboldt Arcata Comment
  JEPS3738  Bensoniella oregona Rimo Bacigalupi and L. Constance with R. Moran, R. L. Rodriguez and Sherwin Carlquist 1951-6-14 3416 Humboldt close to the base Snow Camp Mt. (at Snow Camp, near summit of long high ridge (Bald Mt. ridge) between Mad River and Redwood Creek); nr summit Bald Mt. Snow Camp Mt, btw Mad River and Redwood C 1432 Comment
  UC1198388  Berberis aquifolium Joseph P. Tracy 1924-4-27 6641 Humboldt along hwy near Ruby Creek Willow Creek 609 Comment
  HSC31651  Berberis nervosa Timothy B. Devine 1974-5-4 321 Humboldt 1/4 mi. N of junction of Hwy. 299 and Titlow Hill Rd., E facing slope 875 Comment
  HSC3349  Berberis nervosa John A. Dubois 1962-4-28 15 Humboldt 20 mi. E of Arcata Comment
  JEPS47776  Berberis nervosa Milo S. Baker 1923-7-31 187 Humboldt Lawrence Creek Comment
  UC146103  Berberis nervosa J. P. Tracy 1904-4-17 2016 Humboldt immediate vicinity Eureka 0 Comment
  SEINET11861631  Bidens frondosa J. P. Tracy 1950-9-22 19367 Humboldt Klamath River, near Slate Creek below Orleans 8 mi 122 Comment
  CAS-BOT-BC412989  Bistorta bistortoides Volney Rattan 1882-1-1 s.n. Humboldt Kneeland Comment
  CAS-BOT-BC66274  Blechnum spicant L. R. Abrams; R. Bacigalupi 1922-6-25 8299 Humboldt near northern county line Comment
  CDA5649  Borago officinalis T. C. Fuller 1958-6-17 598 -58 Humboldt Ferndale. 0 Comment
  HSC41347  Boschniakia strobilacea Brad Klipfel 1974-8-2 501 Humboldt Horse Mtn. Comment
  HSC76264  Boykinia major Denis Kearns 1981-7-23 410 Humboldt Near Whiteys Peak. 1524 Comment
  HSC99464  Boykinia major K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 118 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC76260  Boykinia occidentalis Teresa Prendusi 1981-7-7 119 Humboldt Near Slate Creek Butte. 1158 Comment
  POM89211  Boykinia occidentalis L. R. Abrams 1922-6-25 8285 Humboldt Big Lagoon, south of Orick. Comment
  CAS-BOT-BC420276  Boykinia occidentalis Doris K. Kildale 1927-6-25 3574 Humboldt Fearren's ranch between Thorn & Shelter Cove Comment
  HSC27017  Boykinia occidentalis Brad Klipfel 1973-8-17 270 Humboldt Big Lagoon Park Comment
  HSC67082  Boykinia occidentalis Richard Spjut 1980-5-19 6198 Humboldt Between Willow Creek and Hoopa along Hwy. 96 Comment
  CDA14234  Brassica rapa R. Spadoni 1998-5-11 s.n. Humboldt Hwy 299 near Blue Lake. 0 Comment
  LA202097  Brickellia californica S. K. Harris; C. M. Wilder 1938-9-8 877 Humboldt bars on Van Duzen River, below Blue Slide Comment
  CAS-BOT-BC145428  Briza maxima Joseph P. Tracy 1930-6-15 8758 Humboldt Alder Point. 152 Comment
  CAS-BOT-BC145430  Briza maxima P. B. Kennedy 1929-6-13 s.n. Humboldt Etterburg. Comment
  HSC9085  Briza maxima S. R. Johnson 1965-5-2 50 Humboldt Luffenholz Beach near parking area Comment
  SEINET10835828  Briza maxima Botany 1985-6-1 BOTANY s.n. Humboldt Gray's falls campground off hwy 299. Found in a sunny, open disturbed site Along the road at the entrance to the campground 241 Comment
  HSC38484  Briza minor Dennis Anderson, J. P. Smith 1971-6-18 - 1064 Humboldt Chezem Rd., 3 mi. E of bridge over Redwood Creek Comment
  UC1844146  Briza minor Joseph P. Tracy 1912-6-9 3664 Humboldt Alton (Northern Coast Region) Comment
  JEPS7739  Brodiaea elegans subsp. elegans W. L. Jepson 1932-7-24 16385 Humboldt Mail Ridge Comment
  CAS-BOT-BC484215  Brodiaea elegans subsp. elegans Milo S. Baker 1923-7-20 77 Humboldt Near Carlotta; North Coast Trip Comment
  UC1197733  Brodiaea elegans subsp. elegans Joseph P. Tracy 1933-8-30 13014 Humboldt grassy places on Titlow Ridge Grouse Mountain 1432 Comment
  UC1442888  Brodiaea elegans subsp. elegans Theodore F. Niehaus 1965-6-8 566 Humboldt along Glory road 1.7 mi sw Alderpoint Comment
  JEPS512  Brodiaea stellaris Joseph P. Tracy 1928-6-24 8474 Humboldt at head Middle Yager Creek (grassy flat); East's Ranch 762 Comment
  BLMAR191  Brodiaea terrestris subsp. terrestris Donald Hazlett 1994-6-7 191 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC3017  Brodiaea terrestris subsp. terrestris D. E. Anderson 1963-5-25 2493 Humboldt 4 mi. W of Petrolia Comment
  CAS-BOT-BC149451  Bromus briziformis Henry M. Pollard 1948-7-19 s.n. Humboldt River road near Van Fleet Ranch, near Orleans. Comment
  HSC9142  Bromus carinatus var. carinatus W. F. Nickel 1965-3-17 Humboldt Humboldt State College campus behind College Elementary School. Comment
  UC180484  Bromus carinatus var. carinatus Joseph P. Tracy 1913-6-13 4100 Humboldt opposite Buck Mountain (in Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  CAS-BOT-BC155993  Bromus diandrus Doris K. Kildale 1926-5-2 1902 a Humboldt Willows Creek Flat. 152 Comment
  HSC9274  Bromus diandrus P. W. Shields 1956-4-21 Humboldt 5 mi. SE Arcata. Comment
  RSA34310  Bromus diandrus L. Larsen 1935-5-6 s.n. Humboldt [no additional locality data provided] Comment
  SEINET4391136  Bromus diandrus W. D. Billings 1940-6-22 1343 Humboldt 0.5 mile N of Trinidad Comment
  CAS-BOT-BC155424  Bromus hordeaceus Henry M. Pollard 1948-7-18 s.n. Humboldt Orleans. Comment
  UCSC000049  Bromus japonicus H. S. Yates 1936-6-17 5687 Humboldt 1 mile W. of Bridgeville - Dyerville 183 Comment
  HSC99460  Bromus orcuttianus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 114 Humboldt Near North Trinity Mtn., 11. 9 mi. E of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest 1372 Comment
  SEINET200935 Image available Bromus orcuttianus var. orcuttianus Joseph P. Tracy 1949-7-19 18373 Humboldt On Friday Ridge, at Friday's Camp. 1219 Comment
  HSC9266  Bromus racemosus L. M. Malloy 1965-5-15 16 Humboldt N of Trinidad about 2 mi. on Trinity St. Comment
  UCD59545  Bromus rubens Joseph P. Tracy 1948-6-13 18053 Humboldt Harris. 762 Comment
  UC188942  Bromus secalinus J. Burtt Davy 1899-6-20 5688 B Humboldt North Coast Ranges, Hoopa Valley Hoopa Valley; North Coast Ranges, Hoopa Valley Comment
  UCD59657  Bromus secalinus var. velutinus G. T. Bateham 1921-8-7 s.n. Humboldt Showers Pass. Comment
  SEINET200635 Image available Bromus tectorum Joseph P. Tracy 1925-5-30 7039 Humboldt Larrabee Valley. 701 Comment
  UCD59910  Bromus tectorum var. glabratus A. H. Murphy 1951-6-1 52 Humboldt O. O. Davis Ranch. South slope of South Fork Mtn., 3 miles E of Low Gap. Comment
  CAS-BOT-BC185516  Bromus vulgaris Harley P. Chandler 1901-5-1 1177 Humboldt North Coast Ranges. Humboldt Bay. 30 Comment
  RSA259560  Bromus vulgaris D. E. Anderson, J. P. Smith 1971-6-28 J- 1231 Humboldt Growing along Mad River ca. 2 mi. south of Blue Lake. Comment
  UC1103267  Bromus vulgaris J. P. Tracy 1901-6-2 1116 Humboldt immediate vicinity of Eureka 0 Comment
  UC180480  Bromus vulgaris Joseph P. Tracy 1914-5-14 4444 Humboldt Northern Coast Ranges, Fort Seward Fort Seward; Northern Coast Ranges, Fort Seward 121 Comment
  UCD60241  Bromus vulgaris Joseph P. Tracy 1937-6-27 15378 Humboldt Four-mile Creek (west of mouth of South Fork of Trinity). 670 Comment
  RSA246935  Cakile maritima var. maritima R. F. Thorne, P. Everett 1965-8-9 35333 Humboldt Clam Beach County Park. 3 Comment
  CAS-BOT-BC185237  Calamagrostis koelerioides Joseph P. Tracy 1935-7-30 14371 Humboldt Salmon Summit. 2011 Comment
  HSC96469  Calamagrostis nutkaensis Gordon Leppig 1997-6-19 463 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  CHSC106732  Callitriche heterophylla var. bolanderi Robert F. Thorne; P. Everett 1965-8-9 35323 Humboldt Clam Beach County Park: along highway in shallow water of ditch. 3 Comment
  HSC1286  Calocedrus decurrens Elrid H. Spinas 1948-5-22 39 Humboldt Horse Mtn. Comment
  HSC76318  Calocedrus decurrens Teresa Prendusi 1981-7-9 242 Humboldt Near Slate Creek Butte 1122 Comment
  HSC97482  Calochortus tolmiei Cara Witte 2007-5-8 11 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1397 Comment
  JEPS17829  Calochortus tolmiei Joseph P. Tracy 1917-5-30 4813 Humboldt w of Dows Prairie; Northern Coast Ranges 15 Comment
  SEINET6879028  Calochortus tolmiei W. P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland Prairie, about 4 miles southeast of Kneeland. Comment
  UC195348  Calochortus vestae Joseph P. Tracy 1916-6-19 4713 Humboldt Bosworth's Ranch Northern Coast Ranges, Laribee Creek 457 Comment
  UC502923  Caltha biflora Joseph P. Tracy 1932-7-17 10671 Humboldt Ridges east of Corral Prairie, Trinity Summit; Klamath Mountains. 1828 Comment
  RSA43837  Calycadenia ciliosa H. M. Pollard 1947-9-9 s.n. Humboldt Hoopa Indian Reservation Comment
  CAS-BOT-BC273313  Calycadenia fremontii Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  UC1222961  Calycadenia fremontii Joseph P. Tracy 1948-9-20 18220 Humboldt Hoopa Valley 91 Comment
  UC34627  Calycadenia fremontii Chesnut and Drew 1888-7-24 Humboldt Hy-Am-Pim Comment
  RSA47142  Calycadenia truncata subsp. scabrella Doris K. Kildale 1925-9-4 982 Humboldt Redwood Creek Comment
  HSC49391  Calypso bulbosa R. York 1979-4-21 246 Humboldt Behind the town of Korbel Comment
  HSC16566  Calypso bulbosa J. F. Knezevich 1968-4-20 426 Humboldt E of Korbel on Bald Mtn. Comment
  RSA259585  Calypso bulbosa J. D. Ackerman 1976-4-27 754 Humboldt 10 Mi. E of Blue Lake on rd. to Maple Creek. Comment
  SEINET3889828  Calypso bulbosa Rick Lundquist 1979-1 Humboldt Comment
  UCSB29353  Calypso bulbosa var. occidentalis Phelps, M. 1972-3-19 Humboldt 1.5 mi. from Garberville; along Old Briceland Rd; 0.5 mi. north of roadside 213 Comment
  HSC39107  Calyptridium monospermum D. E. Anderson, J. P. Smith 1971-6-18 - 1090 Humboldt Horse Mtn. Comment
  HSC40020  Calyptridium monospermum Thomas W. Nelson, Jane P. Nelson 1976-7-1 2923 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  SEINET181238  Calystegia Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-9 15240 Humboldt Clam Beach 15 miles North Eureka Comment
  HSC59460  Calystegia soldanella M. A. Ericksen 1979-5-18 297 Humboldt Samoa Dunes, .5 mi. S of Simpson Timber Company plant entrance Comment
  HSC6368  Calystegia soldanella S. J. Hawks 1965-5-14 61 Humboldt 1 mi. W of Mckinleyville, past the end of Murray Rd. Comment
  CHSC20349  Calystegia soldanella D. E. Anderson; N. Dennis 1965-6-8 1036 Humboldt Samoa Peninsula along the west side of Humboldt Bay. Sections 3, 4, 9, 10, 15, 16, 17, 20, 21, 28, 29, 31, 32. Comment
  CAS-BOT-BC497299  Camassia leichtlinii var. suksdorfii Joseph P. Tracy 1930-7-17 9000 Humboldt South Fork Mountain; in wet meadow at McKay Camp. 1676 Comment
  CAS-BOT-BC493384  Camassia quamash subsp. linearis M. S. Jussel 1931-5-1 s.n. Humboldt On road to Garberville Comment
  HSC16450  Camissonia cheiranthifolia D. E. Anderson 1963-3-16 2386 Humboldt Scotia Bluffs Comment
  HSC46958  Camissonia cheiranthifolia J. P. Smith, Thomas W. Nelson 1977-6-30 9202 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  RSA167258  Camissonia ovata Joseph P. Tracy 1951-5-5 19392 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town 61 Comment
  LA206042  Camissoniopsis cheiranthifolia C. C. Harris; S. K. Harris 1939-8-23 sn Humboldt Samoa Comment
  CAS-BOT-BC160234  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Peter H. Raven; Richard Snow 1958-7-21 13661 Humboldt Cape Mendocino Comment
  CAS-BOT-BC160243  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Ira L. Wiggins 1930-7-7 4670 Humboldt Near Samoa Comment
  SEINET10462962  Campanula prenanthoides Overton 1979-7-23 OVERTON 9491 Humboldt Near Titlow Hill, on the Willow Creek quad., close to the town of Willow Creek 1280 Comment
  SEINET10873263  Campanula prenanthoides Tracy 1927-8-14 TRACY 8330 Humboldt BIG LAGOON, DAMP BANKS IN FERN PRAIRIES 400 Comment
  SEINET10972391  Campanula prenanthoides Pollard 1948-8-4 POLLARD s.n. Humboldt Orleans Mountain Trail 1219 Comment
  SEINET10463645  Campanula scouleri Ira L. Wiggins 1930-7-22 Wiggins 4699 Humboldt ALONG BANK OF REDWOOD CR. BTWN BLUE L. & WILLOW CR. Comment
  SEINET3238935 Image available Capsella bursa-pastoris Joseph P. Tracy 1929-4-28 8544 Humboldt Trinity River Valley, at Willow Creek 150 Comment
  UC161544  Cardamine breweri Joseph P. Tracy 1906-4-29 2432 Humboldt 2 mi from Fields Landing (s slope Humboldt Hill, region about Humboldt Bay); Northern Coast Region, about Humboldt Bay, Humboldt Hill 0 Comment
  UC10335  Cardamine breweri C. C. Marshall 1888-1 Humboldt Comment
  HSC6692  Cardamine californica D. E. Anderson 1962-3-18 1941 Humboldt Jacoby Creek Comment
  UC162359  Cardamine californica Joseph P. Tracy 1909-4-4 2950 Humboldt region about Humboldt Bay (Buhne's Ranch); Northern Coast Region, Humboldt Bay Region, Buhne's Ranch 0 Comment
  UC492257  Cardamine californica var. californica Joseph P. Tracy 1927-3-27 7863 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 457 Comment
  JEPS53400  Cardamine californica var. integrifolia Lincoln Constance 1934-5-26 651 Humboldt near Founders' Tree (North Dyerville Flat Grove, South Fork Eel River, Bull Creek Region); Bull Creek Region, South Fork Eel R, North Dyerville Flat gr 48 Comment
  UC494001  Cardamine californica var. sinuata Parks and Tracy 916 Humboldt Lower Van Duzen River 60 Comment
  UC1199184  Cardamine californica var. sinuata Joseph P. Tracy 1939-3-19 16206 Humboldt 5 mi e Carlotta (by old Strong's District School House); e of Carlotta, by old Strong's District School House 45 Comment
  UC668051  Cardamine californica var. sinuata Joseph P. Tracy 1938-5-8 15739 Humboldt Blue Slide on Van Duzen River; on Van Duzen River, Blue Slide 91 Comment
  CHSC31270  Cardamine oligosperma Mark Stopher 1980-3-26 41 Humboldt In lowland adjoining Elk River. 1 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
  HSC64792  Cardamine oligosperma J. P. Smith 1971-10-9 4997 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  HSC90227  Cardamine oligosperma L. Watson, J. Meninga Mar 1991 13 Humboldt Near Manila, Mad River slough and dunes, SW edge of parking lot. Comment
  JEPS53297  Cardamine oligosperma Lincoln Constance 1934-5-31 745 Humboldt from w boundary Park to Grasshopper Peak Road (Squaw Peak Road) (n side creek, Bull Creek flat, along Bull Creek, Bull Creek Region, South Fork Eel River); Bull Creek Region, South Fork Eel River, Bull Cr Comment
  HSC43205  Cardamine oligosperma R. Sutherland 1976-8-13 29 .13876 Humboldt Mouth of Redwood Creek at S Fork of Eel River 87 Comment
  UC1199209  Cardamine oligosperma Joseph P. Tracy 1923-4-8 6179 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  CAS-BOT-BC38127  Cardamine pensylvanica Joseph P. Tracy 1937-7-2 15401 Humboldt Trinity Summit. Head of Little Hors-Linto Creek. 1371 Comment
  UC668057  Cardamine pensylvanica Joseph P. Tracy 1937-7-2 15401 Humboldt head Little Hors-Linto Creek , head Little Hors-Linto Creek (Trinity Summit) 1371 Comment
  CAS-BOT-BC384767  Cardionema ramosissimum Doris K. Kildale 1928-8-10 6265 Humboldt Samoa peninsula - Humboldt Bay Comment
  RSA0097053  Cardionema ramosissimum R. F. Thorne, Percy C. Everett 1965-8-5 35155 Humboldt Samoa Dunes. 3 Comment
  POM296860  Carex Lyman Benson 1929-7-16 1843 Humboldt Weott Ranger Station. Comment
  CAS-BOT-BC19216  Carex barbarae Henry M. Pollard 1948-7-29 s.n. Humboldt Near Woodson Mine - Near Orleans. Comment
  CHSC84737  Carex bolanderi L. P. Janeway 2003-7-27 7929 Humboldt North Coast. On ridge between Stone Lagoon, Dry Lagoon and the beach (Sharp Point). Along trail. 823 Comment
  CAS-BOT-BC19439  Carex bolanderi Doris K. Kildale 1927-6-25 3563 Humboldt Fearren's Ranch between Thorn [Whitethorn] and Shelter Cove. Comment
  HSC44057  Carex bolanderi Thomas W. Nelson, Jane P. Nelson 1977-7-1 3559 Humboldt Along Blanket Creek 1494 Comment
  CHSC90273  Carex brainerdii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8588 Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  JEPS25962  Carex buxbaumii Joseph P. Tracy 1927-4-23 7916 Humboldt Big Lagoon 3 Comment
  JEPS26006  Carex canescens Joseph P. Tracy 1939-7-9 16318 Humboldt at Lake Prairie Bald Mountain, Lake Prairie 1066 Comment
  JEPS79838  Carex concinnoides Joseph P. Tracy 1926-5-2 7447 Humboldt near Ruby Creek (Northern Coast Ranges, Willow Creek Canyon); Northern Coast Ranges, Willow Creek Canyon 609 Comment
  SDSU11699  Carex deweyana subsp. leptopoda W. A. Bemis 1964-5-4 274 Humboldt Freshwater Forest, Freshwater. (SE1/4, SE1/4, Sec. 28, T6N, R1E, HBM. 98 Comment
  UC562273  Carex echinata Joseph P. Tracy Jul 16 1930-Jul 19 1930 8986 Humboldt in meadow at McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC562648  Carex feta Joseph P. Tracy 1935-5-25 13838 Humboldt Fort Seward 106 Comment
  HSC40977  Carex fracta J. O. Sawyer 1970-6-24 2217 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  SEINET4292220 Image available Carex fracta Unknown 2003-1 7942 Humboldt On northeast side of Titlow Hill Road, across from a small pond, on the map but un-named, 1.1 km south of Cold Spring. Grouse Mountain quad. Comment
  UC197210  Carex gynodynama Joseph P. Tracy 1912-7-25 3821 Humboldt Northern Coast Ranges, Kneeland Prairie. Comment
  UC197484  Carex gynodynama Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3603 Humboldt Northern Coast Ranges, Hydesville. Comment
  CAS-BOT-BC21021  Carex hendersonii W. R. Dudley 1899-6-19 s.n. Humboldt Scotia. Comment
  CHSC2115  Carex hendersonii M. Anthony 1960-5-1 Humboldt Near Arcata. Comment
  JEPS79845  Carex hendersonii Joseph P. Tracy 1911-6-4 3230 Humboldt Northern Coast Region, along Little River, 5 mi from the Coast Little River; Northern Coast Region, Little River 121 Comment
  JEPS80025  Carex hendersonii Joseph P. Tracy 1905-6-25 2202 Humboldt at Eureka Northern Coast Ranges, Eureka 0 Comment
  UC1103592  Carex hendersonii J. P. Tracy 1899-4-30 312 Humboldt immediate vicinity Eureka 0 Comment
  SEINET7854031 Image available Carex hendersonii V. Duran 1933-5-12 3412 Humboldt Bull Creek, at South Fork of Eel River Comment
  CAS-BOT-BC7844  Carex infirminervia Joseph Prince Tracy 1935-7-23 14162 Humboldt Trinity Summit. Wooded hillsides, lower end of Brett Hole. 1584 Comment
  CAS-BOT-BC35564  Carex jonesii Joseph Prince Tracy 1935-7-26 14257 Humboldt Trinity Summit, Meadows at Water Dog Lakes 1828 Comment
  CAS-BOT-BC35565  Carex jonesii Joseph Prince Tracy 1932-7-15 10572 Humboldt Trinity Summit, at Corral Prairie 1584 Comment
  CAS-BOT-BC31260  Carex lenticularis var. impressa Joseph Prince Tracy 1935-7-23 14148 Humboldt Trinity Summit, Corral Prairie, in wet meadow. 1584 Comment
  JEPS79830  Carex luzulina Joseph P. Tracy Jul 16 1930-Jul 19 1930 8987 Humboldt South Fork Mountain at McKay Camp, Northern Coast Ranges South Fork Mountain; Northern Coast Ranges, South Fork Mt., McKay Camp 1676 Comment
  UC562321  Carex lyngbyei Joseph P. Tracy 1935-6-8 13945 Humboldt around Humboldt Bay; Northern Coast Region 6 Comment
  CHSC85570  Carex mendocinensis L. P. Janeway 2003-7-30 7944 Humboldt High North Coast Ranges. White Rock Spring, just above Clear Lake, on southwest side below Titlow Hill Road, 2.9 km southeast of Titlow Hill. 1512 Comment
  CAS-BOT-BC32132  Carex multicaulis Joseph Prince Tracy 1942-6-2 17105 Humboldt Valley of South Yager Creek. 762 Comment
  HSC71111  Carex multicaulis M. A. Baker 1980-5-23 1387 Humboldt Near Buck Mtn. 343 Comment
  HSC44075  Carex multicostata Thomas W. Nelson, Jane P. Nelson 1977-7-1 2932 Humboldt W of Mount Lassic (Signal Peak) 1677 Comment
  CHSC40163  Carex nudata L. P. Janeway 1984-4-5 755 Humboldt Along the west edge of Trinity River near the Willow Creek airstrip. 137 Comment
  POM126515  Carex nudata Joseph P. Tracy 1922-5-29 6069 Humboldt South Yager Creek Valley. 762 Comment
  HSC7065  Carex obnupta D. B. Bader 1963-3-29 35 Humboldt Second of Clam Beach Lagoons, W of Hwy. 101 Comment
  HSC7068  Carex obnupta R. E. Hafenfeld 1965-5-9 18 Humboldt Near mouth of Squashan Creek Comment
  CAS-BOT-BC119385  Carex obnupta W. R. Dudley 1899-6-1 s.n. Humboldt Peninsula opposite Eureka. Comment
  HSC65948  Carex ovalis M. A. Baker 1980-7-19 2991 Humboldt Near Bret Hole. 1814 Comment
  CAS-BOT-BC119264  Carex ovalis Joseph Prince Tracy 1939-7-9 16315 Humboldt Bald Mt. Abundant in ditch 1 mi N of Murphy Meadows. 914 Comment
  CAS-BOT-BC119242  Carex pachystachya Joseph Prince Tracy 1939-7-9 16340 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC119235  Carex pachystachya Joseph Prince Tracy 1930-7-10 8868 Humboldt Brannan Mountain 1219 Comment
  CAS-BOT-BC119240  Carex pachystachya Joseph Prince Tracy 1939-7-9 16325 Humboldt Bald Mountain; at Lake Prairie 1066 Comment
  HSC76793  Carex pachystachya L. P. Janeway 1982-6-20 17 Humboldt Along Titlow Hill Rd., 3 mi. from Hwy. 299 1220 Comment
  SEINET10817662  Carex pachystachya Lawrence P. Janeway 1984-6-17 Janeway 847 Humboldt Willow Creek quad (15'). T6N, R4E, NW1/4 of sec. 33. Damp drainage along cutbank of Titlow Hill Rd at turn to Horse Mtn. Serpentine in jeffrey pine forest. 1420 Comment
  SEINET10883545  Carex pachystachya Joseph P. Tracy 1935-6-8 Tracy 13938 Humboldt Eureka. Damp place in open ground. Comment
  CAS-BOT-BC118599  Carex praticola Joseph Prince Tracy 1936-5-29 14826 Humboldt Gans Prairie, on ridge E of Orick, in grassy flat. 548 Comment
  SEINET2144409  Carex rostrata Unknown 1924-7-4 6706 Humboldt Snow Camp. 1370 Comment
  CAS-BOT-BC117348  Carex stipata LeRoy Abrams 1918-6-16 7166 Humboldt Willow Creek. Comment
  CHSC102857  Carex subbracteata Peter F. Zika 2009-6-16 24497 Humboldt Outer North Coast Range. Above Chezen Road, at junction with Route 299; between Lord-Ellis and Berry summits. 510 Comment
  SEINET4290241 Image available Carex subbracteata Unknown 2009-1 24500 Humboldt Outer North Coast Range (NCoRO), above Route 299, 0.7 road miles W of Berry Summit. Comment
  SEINET4290245 Image available Carex subbracteata Unknown 2009-1 24497 Humboldt Outer North Coast Range (NCoRo), between Lord-Ellis and Berry summits. Above Chezen Road, at junction with Route 299. Comment
  UC1152076  Carex subbracteata Joseph P. Tracy 1950-6-25 18892 Humboldt Burr Valley, NW slope of Buck Mountain 1066 Comment
  JEPS79864  Carex subfusca Joseph P. Tracy 1935-6-23 13984 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  JEPS75415  Carex tumulicola W. L. Jepson 1932-7-26 16415 Humboldt Bull Creek 106 Comment
  CAS-BOT-BC115571  Carex tumulicola Alice Eastwood; John Thomas Howell 1937-6-23 4843 Humboldt 8 miles from Kneeland on road to Yager. Comment
  CAS-BOT-BC115534  Carex unilateralis Joseph Prince Tracy 1946-5-30 17539 Humboldt Wet gully in grassland near Bridgeville. 457 Comment
  CAS-BOT-BC115543  Carex unilateralis Joseph Prince Tracy 1941-6-29 16935 Humboldt Large dense clump, Hettenshaw Valley 944 Comment
  POM248622  Carex unilateralis Joseph P. Tracy 1937-8-7 15618 Humboldt Bald Mt. 915 Comment
  UC562327  Carex utriculata Joseph P. Tracy 1932-7-14 10563 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1103617  Carex vesicaria var. major Joseph P. Tracy 1926-8-22 7769 Humboldt pond between Dinsmore's and Little Van Duzen; Northern Coast Ranges 762 Comment
  UC1103604  Carex viridula var. viridula Joseph P. Tracy 1934-7-30 13505 Humboldt along coast in front of S. End of Stone Lagoon; Dry Lagoon 3 Comment
  UC1353974  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt ca 2 mi w Dyerville (on ridge 1 mi n above Bull Creek); Lukes Prairie Comment
  CDA6965  Carthamus lanatus G. D. Barbe 1978-7-27 2418 Humboldt Along Salmon Creek, west of Miranda on Salmon Creek Road-Thomas Road. 0 Comment
  HSC98629  Castilleja affinis subsp. affinis Cara Witte 2007-6-4 184 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 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
  UC179946  Castilleja affinis subsp. affinis Joseph P. Tracy 1914-5-14 4434 Humboldt Fort Seward; North Coast Ranges 121 Comment
  HSC20579  Castilleja affinis subsp. litoralis D. J. Jager 1965-5-12 67 Humboldt 0.5 mi. N of Trinidad on bluff above the ocean 46 Comment
  HSC104042  Castilleja ambigua subsp. humboldtiensis C. Reynolds 2015-4-28 40 Humboldt Near creekside on Arcata Marsh, south of Interpretive Center 5 Comment
  JEPS9134  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1938-7-15 16068 Humboldt Mouth of Eel River 3 Comment
  UC604629  Castilleja ambigua subsp. humboldtiensis Joseph P. Tracy 1938-7-15 16068 Humboldt Mouth of Eel River 3 Comment
  HSC30743  Castilleja applegatei subsp. pinetorum D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5648 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  UC673218  Castilleja attenuata Lincoln Constance and Reed C. Rollins 1942-5-12 2891 Humboldt 1 mi s Orleans (Klamath River); Klamath-Siskiyou Region, Klamath River 121 Comment
  HSC20881  Castilleja exserta subsp. latifolia J. W. Johnson 1961-9-6 1106 Humboldt Arcata, Christenson Farm, Samoa Peninsula Comment
  HSC32373  Castilleja exserta subsp. latifolia Linda M. Barker 1974-6-2 200 Humboldt Manila Dunes, Samoa Peninsula, W of Emerson Mill 0 Comment
  HSC44348  Castilleja pruinosa Brad Klipfel 1975-7-11 696 Humboldt Horse Mtn. Comment
  HSC73640  Castilleja pruinosa M. A. Baker 1980-7-23 3169 Humboldt Near Orleans Mtn. 1859 Comment
  JEPS8622  Castilleja pruinosa Joseph P. Tracy 1926-6-27 7676 Humboldt Horse Mountain; Northern Coast Ranges 1432 Comment
  SBBG115928  Ceanothus arcuatus J. M. Tucker 1948-9-3 1852 Humboldt House Mtn at jct of rd to Grouse Mtn and rd to Horse Mtn Mine 1463 Comment
  OBI35865  Ceanothus cuneatus var. cuneatus David J. Keil 1983-7-2 17328 Humboldt Horse Mtn Summit SW of Willow crk Comment
  UC18280  Ceanothus cuneatus var. cuneatus C. C. Marshall April 1888 Humboldt Hoopa Valley Comment
  UC275318  Ceanothus foliosus Joseph P. Tracy 1923-6-20 6322 Humboldt Chamisal Mountain, near Shelter Cove 304 Comment
Read comments
Aug 4 2016
  UC668166  Ceanothus foliosus Joseph P. Tracy 1937-5-30 15314 Humboldt 3 mi s Bridgeville (by roadside.) 457 Comment
  CAS-BOT-BC50049  Ceanothus incanus Doris K. Kildale 1926-8-8 2470 Humboldt Dyerville Bridge near Dyerville - South Fork of Eel River 45 Comment
  RSA95401  Ceanothus incanus Joseph P. Tracy 1932-5-1 9878 Humboldt Vicinity of Garberville Comment
  BLMAR249  Ceanothus integerrimus Jennifer Anthony-Wheeler 1997-7-24 249 Humboldt Lacks Creek, growing in disturbed sites among forest 1219 Comment
  CAS-BOT-BC63679  Ceanothus integerrimus L. B. Kildale 1927-7-3 3635 Humboldt Willow Creek Flat. 152 Comment
  CAS-BOT-BC63683  Ceanothus integerrimus M. S. Jussel 1931-5-2 115 Humboldt Garberville. Comment
  HSC98605  Ceanothus integerrimus Cara Witte 2007-6-5 209 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1.25 miles south of intersection with 5N04. 1405 Comment
  RSA46885  Ceanothus integerrimus var. californicus Doris K. Kildale 1926-4-25 1813 Humboldt Hoopa Mt. Comment
  HSC97918  Ceanothus integerrimus var. integerrimus Cara Witte 2007-6-14 276 Humboldt Along National Forest 1. Near Kinsey Ridge. 2 miles north of intersection with 4N06. 1319 Comment
  POM118611  Ceanothus oliganthus var. sorediatus Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville. Comment
  UC176049  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1913-6-27 4354 Humboldt Near Bridgeville McClellan Mountain, Northern Coast Ranges 457 Comment
  CAS-BOT-BC51212  Ceanothus parryi Carl B. Wolf 1941-7-28 11092 Humboldt Slopes along Eel River, 1 mi. so. of Miranda. 30 Comment
  HSC43179  Ceanothus parryi R. Sutherland 1975-6-19 2 .19675 Humboldt 2 mi NE of Briceland 178 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
  HSC23286  Ceanothus pumilus D. E. Anderson, J. P. Smith 1971-7-6 - 1309 Humboldt Horse Mtn. 10 mi W of Willow Creek 1524 Comment
  HSC43229  Ceanothus pumilus R. Sutherland 1976-4-17 5 .17476 Humboldt 549 Comment
  HSC37609  Ceanothus thyrsiflorus R. Sutherland 1975-5-8 11 .8575 Humboldt Along county rd. near Mattole River, 6 mi W of Honeydew Comment
  HSC43218  Ceanothus thyrsiflorus R. Sutherland 1975-5-28 12 .28575 Humboldt Tolkan Recreational Site 503 Comment
  HSC47489  Ceanothus thyrsiflorus Sheila Logan 1978-4-7 11 Humboldt 0.5 mi E of McKinleyville on Murray Rd. Comment
  OBI44963  Ceanothus thyrsiflorus var. thyrsiflorus Midred J. Cady 1938-7-14 s.n. Humboldt Near Trinidad Comment
  SBBG116555  Ceanothus thyrsiflorus var. thyrsiflorus D. H. Wilken 2003-7-22 16176 Humboldt near Windy Nip Gap, Mattole Rd, 1.5 km SW of Cathy's Pk 670 Comment
  BLMAR733  Ceanothus velutinus Jennifer Wheeler 2015-4-23 733 Humboldt Lacks Creek, End of Pine Ridge Rd 1136 Comment
  HSC37061  Ceanothus velutinus R. Sutherland 1975-6-19 0 .19675 Humboldt 320 Comment
  HSC56259  Ceanothus velutinus var. velutinus G. L. Clifton, Griswold 1979-8-2 12410 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  CDA7083  Centaurea calcitrapa T. C. Fuller 1960-8-25 4974 Humboldt Around Pacific Lumber Company barn, across Eel River from South Fork. 0 Comment
  CDA42257  Centaurea diffusa P. Haggard 1998-9-13 s.n. Humboldt North Coast Ranges; USFS land near Blue Lake. 0 Comment
  JEPS46366  Centaurium muehlenbergii Milo S. Baker 1923-7-12 3 Humboldt near Dyerville Comment
  UC1198630  Centaurium muehlenbergii Joseph P. Tracy 5208 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  HSC99829  Cephalanthera austiniae T. Jimerson, J. Pageau 1979-7-31 708 Humboldt Near Whiting Ridge. Close to town of Hyampom 1204 Comment
  CAS-BOT-BC384897  Cerastium arvense Mrytle Paulson 1918-4-28 s.n. Humboldt Eureka Comment
  HSC45053  Cerastium arvense R. Sutherland 1978-4-24 11 .24478 Humboldt Kinsey Ridge, gravel slide of road cut 323 Comment
  HSC39837  Cerastium glomeratum Peter Sorensen 1976-6-12 Humboldt Woodley Island, Humboldt Bay Comment
  UCSB1850  Cerastium glomeratum Parks, H.; Parks, S. 1944-04 Humboldt Spruce Cove, Trinidad 60 Comment
  UC62197  Ceratophyllum demersum W. C. Blasdale 1896-6-3 Humboldt Blue Lake Comment
  CAS-BOT-BC166039  Chamerion angustifolium subsp. circumvagum Clarence R. Quick 1959-7-24 59 -30 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  CAS-BOT-BC166041  Chamerion angustifolium subsp. circumvagum T. Mosquin; L. Mosquin 1962-6-19 4492 Humboldt Along highway at north end of bridge over Big Lagoon, north of Eureka Comment
  HSC44520  Chamerion angustifolium subsp. circumvagum Brad Klipfel 1973-7-1 127 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC48701  Chamerion angustifolium subsp. circumvagum Brad Klipfel 1973-7-31 258 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC55206  Chamerion angustifolium subsp. circumvagum Overton 1979-8-1 12324 Humboldt Near Mill Creek, close to the town of Hoopa 1341 Comment
  HSC98042  Chamomilla suaveolens Cara Witte 2007-7-17 533 Humboldt Intersection of 6N01B and National Forest 1. 1427 Comment
  CDA3059  Chenopodium ambrosioides B. F. Kemp 1957-11-8 511 -57 Humboldt Orrick. 0 Comment
  POM188634  Chenopodium botrys Marcus E. Jones 1931-7-16 28870 Humboldt Junction, East of Arcata 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
  UC1225781  Chenopodium murale Joseph P. Tracy 1948-1-11 17949 Humboldt Eureka 30 Comment
  HSC102564  Chimaphila umbellata M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1551 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC55158  Chimaphila umbellata Gilbert Muth 1979-8-1 12119 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC76593  Chimaphila umbellata Teresa Prendusi 1981-7-9 231 Humboldt Near Cedar Camp 1256 Comment
  CAS-BOT-BC451493  Chimaphila umbellata Milo S. Baker 1947-8-10 11899 Humboldt 15 mi. NE of Hoopa near end of forest road 1371 Comment
  RSA43899  Chimaphila umbellata subsp. occidentalis H. M. Pollard 1948-8-4 s.n. Humboldt Orleans Mt. 1372 Comment
  RSA467018  Chimaphila umbellata subsp. occidentalis A. C. Life 1924-2-23 14589 Humboldt Kings Mts.,Redwood Park. Comment
  JEPS50839  Chlorogalum pomeridianum var. pomeridianum Wayne Roderick 1966-6-18 Humboldt ca 3 road mi n Bridgeville 762 Comment
  POM351629  Chrysanthemum leucanthemum B. C. Templeton 1964-6-13 10185 Humboldt North of Patrick's Point on Hwy. 101 Comment
  RSA43688  Chrysanthemum parthenium H. M. Pollard 1947-8-28 s.n. Humboldt Roadside near Perch Creek, Orleans region Comment
  RSA1834  Chrysolepis chrysophylla Carl B. Wolf 1930-10-30 1786 Humboldt Old coast road at Thorn. 305 Comment
  UC667993  Chrysolepis sempervirens Joseph P. Tracy 1937-7-29 15583 Humboldt summit near Blake Lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  UC1224690  Chrysosplenium glechomifolium D. E. Anderson 1964-4-12 2974 Humboldt small creek leading into Jacoby Creek (on n side of road) Comment
  UC1223064  Cichorium intybus Joseph P. Tracy 1950-7-9 18981 Humboldt Frank Graham's Farm; Willow Creek Comment
  UC164825  Cichorium intybus Joseph P. Tracy 1907-6-20 2572 Humboldt Northern Coast Region; vicinity of Eureka Comment
  HSC8634  Cicuta douglasii D. E. Anderson 1961-9-30 1850 Humboldt Blue Lake Comment
  UC552729  Cinna latifolia Joseph P. Tracy 1935-7-25 14244 Humboldt Lower end Brett Hole Trinity Summit; , Lower end of Brett Hole 1584 Comment
  HSC56206  Circaea alpina subsp. pacifica G. L. Clifton, Griswold 1979-8-2 12198 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC562518  Circaea alpina subsp. pacifica Joseph P. Tracy 1936-8-7 15088 Humboldt head of Little Hors-Linto Creek (Trinity Summit); Trinity Summit 1371 Comment
  UC668240  Circaea alpina subsp. pacifica Joseph P. Tracy 1937-6-20 15349 Humboldt 10 mi. up stream from mouth of Bear R.; Bear R. 152 Comment
  RSA20788  Circaea alpina subsp. pacifica Carl B. Wolf 1937-8-13 9253 Humboldt North Coast Range, 11 miles E of Hoopa Valley on new road towards Trinity Summit. 1524 Comment
  RSA66880  Circaea alpina subsp. pacifica P. A. Munz 1951-7-15 16552 Humboldt 5 miles N of Willow Creek, on Raccoon Creek 305 Comment
  HSC57013  Cirsium arvense Overton, Butler 1979-7-24 57013 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  RSA439196  Cirsium arvense M. B. Dunkle 1936-8-22 4859 Humboldt Williams Grove, Eel River 213 Comment
  CDA1113  Cirsium brevistylum T. R. Haig, T. C. Fuller 1959-6-12 2791 Humboldt 5 mi. N/ Richardson Grove. 0 Comment
  CHSC97934  Cirsium cymosum T. R. Haig 1960-6-16 Humboldt Near quarry at Kneeland. Comment
  CAS-BOT-BC285532  Cirsium occidentale var. candidissimum Doris K. Kildale 1928-6-24 5274 Humboldt Horse Mountain 914 Comment
  CAS-BOT-BC285528  Cirsium occidentale var. candidissimum John Thomas Howell 1937-7-31 13713 Humboldt Trinity River Canyon 2 miles west of Trinity Co. line Comment
  CAS-BOT-BC285530  Cirsium occidentale var. candidissimum Henry M. Pollard 1948-7-29 s.n. Humboldt Between Orleans and Woodson Mines Comment
  OBI81553  Cirsium occidentale var. candidissimum Jill M. Bushakra, John Bushakra 2000-6-16 42 Humboldt Across Hwy 101/Hwy 271 from the Elfin Glen Gift Shop, north of the Standish-Hickey Prk. Opening in coniferous forest. 213 Comment
  CAS-BOT-BC288716  Cirsium remotifolium Doris K. Kildale 1927-7-25 3835 Humboldt Table Bluff near lighthouse Comment
  CAS-BOT-BC228800  Cistanthe umbellata Joseph P. Tracy 1930-7-16 8946 Humboldt South Fork Mountain; along summit near Blake Lookout 1706 Comment
  CAS-BOT-BC228802  Cistanthe umbellata Doris Kildale Gillespie 1931-6-7 10590 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  HSC45282  Clarkia amoena Clifton Raymond Chesbrough 1971-7-26 100 Humboldt 2 mi. N of Trinidad Comment
  JEPS43543  Clarkia amoena subsp. huntiana W. L. Jepson 1927-7-3 12369 Humboldt Garberville 228 Comment
  JEPS43630  Clarkia amoena subsp. huntiana W. L. Jepson 1902-7-29 2126 Humboldt Three Creeks to Willow Creek (summit of grade) 1066 Comment
  CAS-BOT-BC172077  Clarkia davyi D. E. Breedlove 1962-6-7 3037 Humboldt 1.5 miles south of Samoa on peninsula on western side of Humboldt Bay Comment
  UC162342  Clarkia davyi Joseph P. Tracy 1911-6-25 3256 Humboldt bluffs back of Bucksport (region about Humboldt Bay); Northern Coast Region 0 Comment
  HSC38102  Clarkia gracilis Thomas W. Nelson, James Nelson 1976-5-30 2623 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC20297  Clarkia gracilis subsp. gracilis Harley P. Chandler June, 1901 1363 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC56307  Clarkia gracilis subsp. gracilis Joseph Burtt Davy 1899-6-21 5728 Humboldt Supply Creek Comment
  UC125958  Clarkia gracilis subsp. sonomensis Mrs. M. H. Manning 1902-1 Humboldt near Hupa 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
  POM299419  Clarkia purpurea subsp. quadrivulnera C. C. Harris, S. K. Harris, J. P. Tracy 1942-6-22 1261 Humboldt 7 miles north and 5 miles east of Willow Creek 165 Comment
  RSA167262  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1950-6-15 18809 Humboldt Mail Ridge, North of Harris, Fort Seward Ranch Comment
  HSC98618  Clarkia rhomboidea Cara Witte 2008-7-2 795 Humboldt National Forest Road 1; 5 miles south of intersection with 5N04. Before cattle guard crossing. 1406 Comment
  UC672996  Claytonia parviflora subsp. parviflora Joseph P. Tracy 1937-3-17 15285 Humboldt Willow Creek; Trinity River Valley 152 Comment
  HSC100605  Claytonia perfoliata Carl C. Marshall Apr 1886 105 Humboldt Damp places. Comment
  CAS-BOT-BC439933  Claytonia perfoliata subsp. mexicana Doris K. Kildale 1926-3-21 1583 Humboldt Kneeland Prairie - summit 853 Comment
  UC673001  Claytonia perfoliata subsp. mexicana Joseph P. Tracy 1937-6-27 15380 Humboldt w of mouth of South Fork of Trinity River (Four-Mile Creek); Four-Mile Creek 670 Comment
  HSC36878  Claytonia rubra subsp. rubra J. P. Smith, J. O. Sawyer, J. Cole 1976-4-18 8614 Humboldt Bald Hills Rd., 17 mi. E of its jct. with Hwy. 101 854 Comment
  HSC65469  Claytonia saxosa M. A. Baker 1980-6-8 1918 Humboldt Near Buck Flat. 1554 Comment
  CAS-BOT-BC443897  Claytonia sibirica Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC17731  Claytonia sibirica William J. Ferlatte 1963-4-27 20 Humboldt Waste place, near 11th and A St., Arcata Comment
  HSC62682  Claytonia washingtoniana Michelle Stevens 1979-4-21 53 Humboldt Ponds across from Clam Beach 0 Comment
  HSC15450  Clintonia andrewsiana Francis Winter 1960-4-23 Humboldt 1.0 mi W of Angel Ranch on Korbel-Maple Creek Rd. 244 Comment
  UC180199  Clintonia andrewsiana Joseph P. Tracy 1914-5-17 4473 Humboldt between Ryans Slough and Freshwater Creek (about Humboldt Bay, at the Cumens Claim); Northern Coast Region, Humboldt Bay 304 Comment
  BLMAR639  Collinsia grandiflora Jennifer Wheeler 2011-6-21 639 Humboldt Lacks Creek, Pine Ridge Road 1158 Comment
  HSC22862  Collinsia grandiflora D. E. Anderson 1965-4-24 3534 Humboldt Along Titlow Hill Rd. Comment
  JEPS26343  Collinsia heterophylla Joseph P. Tracy 1914-5-14 4464 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  UC582466  Collinsia heterophylla Joseph P. Tracy 1935-5-25 13896 Humboldt Dobbyn Creek 152 Comment
  HSC73177  Collinsia linearis M. A. Baker 1980-5-18 1335 Humboldt Near Black Mtn. 792 Comment
  HSC70387  Collinsia parviflora M. A. Baker 1980-6-8 1887 Humboldt Near Buck Flat. 1554 Comment
  UC604633  Collinsia parviflora Joseph P. Tracy 1938-6-13 15922 Humboldt Grouse Mountain, at Cold Springs Cold Springs; Grouse Mountain, Cold Springs 1432 Comment
  HSC96206  Collinsia parviflora J. McIntire, S. Lyon 2005-6-8 4 Humboldt Cold Springs Camp, 7.4 mi. S of Hwy. 299 on F.S. Rd. NF1 1402 Comment
  POM193011  Collinsia sparsiflora H. E. Parks 1930-5-25 792 Humboldt Laribee Valley. 793 Comment
  UCR45409  Collinsia sparsiflora var. sparsiflora Barry Silver 1986-4-23 519 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  HSC93919  Collinsia sparsiflora var. sparsiflora D. K. Imper 1997-5-5 Humboldt Kneeland Prairie, E of airport runway 854 Comment
  HSC100664  Collinsia tinctoria Carl C. Marshall May 1887 418 Humboldt Spruce Grove region. Comment
  RSA411155  Collomia grandiflora Anstruther Davidson 1918-07 3352 Humboldt Eel River. Comment
  HSC16925  Collomia heterophylla D. E. Anderson 1961-9-30 1854 Humboldt Divide Lake. 915 Comment
  HSC73667  Collomia heterophylla M. A. Baker 1980-7-15 2963 Humboldt Near Whiting Ridge. 1341 Comment
  UC535757  Collomia heterophylla Eleanor Armstrong 1934-5-17 Humboldt Garden Club Grove Comment
  RSA71937  Collomia heterophylla F. W. Peirson 1926-7-12 7035 Humboldt Redwood Creek bottom landes below bridge, Orick Comment
  SEINET3479162  Collomia heterophylla S. K. Harris 1942-6-12 Humboldt East of Birds Nest (added later by Bill Schmidt), East of Birds Nest (added later by Bill Schmidt), 4 miles east, Fickle Hill Road to Boynton Prairie Comment
  UC1197848  Collomia heterophylla Joseph P. Tracy 1914-5-14 4461 Humboldt Fort Seward Northern Coast Region 121 Comment
  HSC99064  Collomia tracyi Cara Witte 2007-7-20 569 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1522 Comment
  JEPS109809  Collomia tracyi Dean W. Taylor 2004-6-24 19133 Humboldt Horse Mountain, along Titlow Hill Road 0.4 miles north from the junction with the road to the mountain summit 1310 Comment
  SBBG103147  Collomia tracyi D. H. Wilken with C. Donahue 1976-7-16 12708 Humboldt Horse Mtn Natural Area, N of Berry Summit 1310 Comment
  HSC45623  Comandra umbellata subsp. californica Diane L. Reed 1978-4-22 12 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  UC672847  Comandra umbellata subsp. californica Joseph P. Tracy 1927-5-15 8038 Humboldt near the South Fork (Trinity River Valley); Trinity River Valley 182 Comment
  UC1222613  Conium maculatum Joseph P. Tracy 1950-6-8 18768 Humboldt near Petrolia (Hills between town and ocean) Comment
  CAS-BOT-BC286024  Conyza canadensis Doris K. Kildale 1925-9-6 1283 Humboldt Somes Bar 243 Comment
  HSC91919  Conyza canadensis E. Mackey 1987-9-5 Humboldt Patricks Point State Park; in dune area Comment
  CAS-BOT-BC181556  Coptis laciniata Charlotte M. Hoak 1931-7-12 s.n. Humboldt Noyo, Northspur, 2nd bench back, southern limit Prairie Camp Comment
  JEPS8438  Corallorhiza mertensiana Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3408 Humboldt bog near High Prairie (ridge is long high ridge between Mad River and Redwood Creek); Bald Mountain ridge 1066 Comment
  CAS-BOT-BC101138  Corethrogyne filaginifolia D. M. Gordon 1982-9-20 s.n. Humboldt End of county road (Lanphere Rd.) on Hunt property. Lanphere-Christensen Dunes Preserve, 3 miles west of Arcata Comment
  UC1223038  Corethrogyne filaginifolia Joseph P. Tracy 1948-8-22 18106 A Humboldt 5 mi e of town old Strong's District School House; Carlotta 60 Comment
  HSC100453  Cornus nuttallii Carl C. Marshall Jun 1886 283 Humboldt Bald Hills. Comment
  JEPS50154  Cornus nuttallii W. L. Jepson 1936-8-11 17868 Humboldt <Philipsville> S. Fork Eel R., <Philipsville> Comment
  UC154072  Cornus nuttallii Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5635 Humboldt Hoopa Mt. North Coast Ranges, Hoopa Mt. Comment
  UC154053  Cornus sericea subsp. sericea Joseph P. Tracy 1901-8-2 1247 Humboldt near Hydesville; Northern Coast Region 60 Comment
  POM126155  Cornus sessilis Joseph P. Tracy 1921-8-21 5941 Humboldt Trinity River at mouth of South Fork. 152 Comment
  RSA46844  Cornus sessilis Doris K. Kildale 1927-7-3 3631 Humboldt Willow Creek Flat. Comment
  UC1225941  Corylus californica Joseph P. Tracy 1946-8-25 17641 Humboldt Table Bluff, on Hookton road 9 Comment
  UC54931  Corylus californica P. E. Goddard 1901-7-12 73 Humboldt Hupa Comment
  HSC95923  Corylus cornuta subsp. californica Will Ferrand 2001-6-17 14 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  OBI36371  Corylus cornuta subsp. californica David J. Keil 1983-7-1 17269 Humboldt Ca. 13 mi W of jctn US 101 along Bull Crk Flats Rd Comment
  SEINET11859878  Cotula australis J. P. Tracy 1943-4-10 17414 Humboldt Eureka Comment
  CHSC97985  Cotula coronopifolia C. DeLay 2002-5-11 12 Humboldt V St. Humboldt Bay Wildlife Refuge. 5 Comment
  HSC12545  Cotula coronopifolia C. Kline 1970-10-28 52 Humboldt North Bank Rd., 3 mi. W of Blue Lake, Mad River gravel bottoms Comment
  UC1787277  Crepis capillaris G. K. Helmkamp, E. A. Helmkamp 2001-7-8 6998 Humboldt North coastal strand.: North spit of Samoa Peninsula, 0.5 mi N of CA-225 bridge over Humboldt Bay. 6 Comment
  HSC26921  Crepis capillaris Brad Klipfel 1973-7-24 221 Humboldt Arcata Comment
  RSA28654  Crepis capillaris H. E. Parks 1941-08 24189 Humboldt Roadsides and fields, vicinity of Trinidad Comment
  UCD130982  Crepis setosa Joseph P. Tracy 1947-7-13 17769 Humboldt Hors-Linto Creek. 152 Comment
  HSC91877  Crocosmia X crocosmiiflora E. Mackey 1986-10-7 Humboldt Patrick's Point State Park, picnic area near parking lot for Ceremonial Rock Comment
  HSC12016  Croton setiger Wilbur Peterson 1970-10-31 95 Humboldt Scotia Bluffs, edge of Eel River Comment
  UC1103236  Crypsis vaginiflora Joseph P. Tracy 1940-10-17 16773 Humboldt near Dyerville (river bar); Eel River, Camp Grant 48 Comment
  UC525587  Cryptantha flaccida Joseph P. Tracy 1924-6-11 6694 Humboldt near Blue Lake (at Essex); Northern Coast Region, Mad River, Essex 15 Comment
  HSC33754  Cryptantha leiocarpa A. Montalvo 1975-5-24 284 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC57212  Cryptantha simulans Griswold, Butler 1979-7-12 7247 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC63877  Cryptogramma acrostichoides M. A. Baker 1979-6-27 926 Humboldt E of Oregon Creek Comment
  HSC74324  Cryptogramma acrostichoides Gail Newton 1980-7-23 1734 Humboldt Near Packsaddle Ridge 1463 Comment
  UC162944  Cupressus lawsoniana Joseph P. Tracy 1911-7-6 3341 Humboldt mountain slopes along road between Three Creeks and Mouth of Willow Creek; Northern Coast Ranges 762 Comment
  RSA758117  Cupressus macrocarpa Doug Goldman 2004-12-20 2982 Humboldt Open area with sandy loam soil, just below the edge of a NW-facing bluff overlooking the beach and a few hundred feet to N. of the table Bluff lighthouse facility. 43 Comment
  CDA39936  Cuscuta campestris W. Simas 1965-8-25 s.n. Humboldt Bartlett property, Shively. 0 Comment
  NY1043284  Cuscuta salina C. C. Harris 1941-8-28 1175 Humboldt Humboldt Bay near Table Bluffs Comment
  CHSC31295  Cuscuta salina var. major Mark Stopher 1980-7-11 117 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  UC153987  Cuscuta salina var. major Joseph P. Tracy 1901-8-7 1256 Humboldt Humboldt Bay Region Northern Coast Region 0 Comment
  HSC65846  Cycladenia humilis Gail Newton 1980-7-22 1655 Humboldt Near Devils Backbone 1554 Comment
  UC1222263  Cynoglossum grande Joseph P. Tracy 1949-6-20 18314 Humboldt 6 mi. s.e. Arcata (Fickle Hill); Fickle Hill 609 Comment
  UC1222257  Cynoglossum occidentale Joseph P. Tracy 1948-8-15 18121 Humboldt on Ridge 2 mi. e. Grove's Prairie (Trinity Summit Rd. high point); Trinity Summit 1524 Comment
  UC525557  Cynoglossum occidentale Joseph P. Tracy 1930-7-10 8871 Humboldt Brannan Mt. Northern Coast Ranges, Brannan Mt. 1219 Comment
  UCD60124  Cynosurus cristatus A. H. Murphy 1949-6-29 s. n. Humboldt ca. 1.5 miles north of Loleta, H. Perrots Ranch, Table Bluff. Comment
  HSC44737  Cynosurus echinatus Maralyn O'Meara 1972-6-8 85 Humboldt Along Bald Hills Rd, 16.4 mi. E of junction with Hwy. 101 Comment
  RSA183563  Cyperus eragrostis D. E. Anderson 1963-9-29 2848 Humboldt Fish Lake. Comment
  SEINET200973  Cyperus eragrostis Joseph P. Tracy 1927-8-7 8309 Humboldt Trinity River Valley at Willow Creek. 152 Comment
  CAS-BOT-BC114268  Cyperus esculentus Henry M. Pollard 1945-9-4 s.n. Humboldt Near Camp Creek, Klamath River Canyon. Comment
  HSC55069  Cystopteris fragilis G. L. Clifton, Griswold 1979-7-31 11649 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  CAS-BOT-BC189766  Dactylis glomerata Henry M. Pollard 1948-7-28 s.n. Humboldt Roadside near Orleans. Comment
  HSC58694  Dactylis glomerata Overton, Butler 1979-8-2 12697 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC9530  Dactylis glomerata R. D. Zortman 1963-4-14 30 Humboldt 5.0 mi. NE of Arcata, off Warren Creek Road. 91 Comment
  RSA54136  Dactylis glomerata Henry M. Pollard 1946-8-25 s.n Humboldt Wilson Creek. Orleans region Comment
  HSC102143  Danthonia californica M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1049 Humboldt Patterson Meadows 1566 Comment
  UC526708  Danthonia californica Joseph P. Tracy 1930-7-10 8860 Humboldt Brannan Mountain Northern Coast Ranges 1219 Comment
  UCD60699  Danthonia californica var. americana A. Murphy; R. Tofsrud 1947-5-20 31 Humboldt Baker Ranch, 10 mi. N of Bridgeville. Comment
  SEINET10598361  Danthonia intermedia Joseph P. Tracy 1934-7-18 Tracy 13421 Humboldt Grouse Mountain, wet meadow. 1524 Comment
  CAS-BOT-BC420358  Darmera peltata Doris K. Kildale 1928-6-24 5247 Humboldt Redwood Creek at Berry's Comment
  JEPS49584  Darmera peltata W. L. Jepson 1902-6-30 1958 Humboldt Redwood Creek; Berry's Ranch Comment
  UC666823  Darmera peltata Joseph P. Tracy 1933-6-7 12517 Humboldt Blue Slide Van Duzen River (on the Van Duzen River) 91 Comment
  UC154249  Daucus pusillus J. P. Tracy 1909-7-18 3021 Humboldt sand hills of Ocean Beach at Samoa opposite Eureka Comment
  HSC48788  Delphinium decorum subsp. tracyi Brad Klipfel 1975-6-17 316 Humboldt Along Titlow Hill Rd. Comment
  UC183704  Delphinium decorum subsp. tracyi Joseph P. Tracy 1913-6-17 4171 Humboldt near the summit Northern Coast Ranges, Buck Mountain 1676 Comment
  HSC44634  Delphinium decorum subsp. tracyi Diane L. Reed 1978-5-27 125 Humboldt 2.9 mi. from Hwy. 299 on Titlow Hill Rd., Horse Mtn. Comment
  HSC95837  Delphinium decorum subsp. tracyi Kevin Thomas 2004-4-26 14 Humboldt Titlow Hill Rd. Comment
  UC1005604  Delphinium decorum subsp. tracyi Frank W. Gould 1939-5-29 837 Humboldt in wet meadow near ski hut; Horse Mountain 1005 Comment
  UC668271  Delphinium glaucum Joseph P. Tracy 1935-7-25 14241 Humboldt lower end Brett Hole (along streams); Trinity Summit 1584 Comment
  HSC85771  Delphinium hesperium Andrea Begnoche, Leonel Arguello, Bobbi Schnell 1987-4-24 41 Humboldt 24 mi. E of Blue Lake on Titlow Rd., 100 yds. from Hwy. 299 854 Comment
  HSC27071  Delphinium nudicaule Clifton Raymond Chesbrough 1971-4-11 8 Humboldt 1.0 mi. E of Salyer on Hwy. 299, along Trinity River Comment
  POM172653  Delphinium trolliifolium Kneeland Prainie 1888-7-9 s.n. Humboldt Kneeland Prairie. Comment
  UC1222575  Delphinium trolliifolium Joseph P. Tracy 1951-6-26 19559 Humboldt halfway between Snow Camp and Twin Lakes (at Charley Preston's old gate near the road) Twin Lakes Comment
  UC162819  Delphinium trolliifolium Joseph P. Tracy 1908-6 2712 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  JEPS23301  Delphinium trolliifolium W. L. Jepson 1934-5-6 16681 Humboldt Little Larrabee Creek Comment
  JEPS5768  Delphinium trolliifolium Joseph P. Tracy 1935-6-23 14000 Humboldt near Coyote Peak; French Camp Ridge 1066 Comment
  CAS-BOT-BC194293  Deschampsia cespitosa subsp. cespitosa Edward Lee 1934-8-17 1153 Humboldt East shore of Big Lagoon, 35 miles north of Eureka 3 Comment
  UC249800  Deschampsia cespitosa subsp. cespitosa Joseph P. Tracy 1923-6-19 6301 Humboldt Wilder Ridge near Kings Peak; Northern Coast Ranges, Wilder Ridge 762 Comment
  RSA12531  Deschampsia danthonioides C. B. Wolf 1934-7-2 5907 Humboldt 4.5 mi. from Snow Camp on rd. to Bald Mt. (Mts. east of Korbel) Comment
  RSA22686  Deschampsia danthonioides Joseph P. Tracy 1935-6-23 13969 Humboldt French Camp Ridge Comment
  CAS-BOT-BC201778  Deschampsia elongata Doris K. Kildale 1928-7-1 5309 Humboldt French Camp - Bald Hills - Orick - Martin's ferry road 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
  POM207195  Deschampsia elongata Jos Burtt Davy, W. C. Blasdale 1899-08 5516 B Humboldt Near Pepperwood Comment
  RSA256709  Deschampsia elongata D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-17 5712 Humboldt Mc Keown Ranch North of Dinsmore Comment
  SBBG59443  Deschampsia elongata H. E. Parks -May-1931 3646 a Humboldt Big Lagoon Comment
  UC1103215  Deschampsia elongata J. P. Tracy 1899-7-22 331 Humboldt immediate vicinity of Eureka 0 Comment
  UC249799  Deschampsia elongata Joseph P. Tracy 1923-6-20 6308 Humboldt White Thorn Valley Northern Coast Ranges, White Thorn Valley 304 Comment
  HSC58678  Descurainia incana G. L. Clifton, Terry Griswold 1979-8-2 12201 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  JEPS9737  Dicentra formosa Joseph P. Tracy 1933-5-28 12414 Humboldt Carlotta; Northern Coast Ranges 60 Comment
  HSC12427  Dicentra formosa Gary J. Stebbins 1970-4-19 72 Humboldt Along road to Fieldbrook 2.8 mi. N of Hwy. 299 Comment
  HSC32382  Dichelostemma capitatum subsp. capitatum Linda M. Barker 1974-5-11 182 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  SEINET200693  Dichelostemma congestum Joseph P. Tracy 1927-5-8 7965 Humboldt Phillipsville South Fork of Eel River. 122 Comment
  UC1198164  Dichelostemma congestum Joseph P. Tracy 1917-6-17 4814 Humboldt near Field's Landing (Still Farm, near Humboldt Bay); Northern Coast Ranges, Humboldt Bay 15 Comment
  HSC70662  Dichelostemma ida-maia Gail Newton 1980-7-14 1545 Humboldt Near Deadman Ridge 1097 Comment
  UC1133926  Dichelostemma ida-maia G. T. Nordstrom Jul 1937 1438 Humboldt 1.5 mi sw Orick; Orick Quad. 152 Comment
  JEPS508  Dichelostemma ida-maia Joseph P. Tracy 1937-7-19 15450 Humboldt nw slope Buck Mountain 914 Comment
  RSA70148  Dichelostemma ida-maia F. W. Peirson 1926-7-12 7030 Humboldt W slope of Coast Range back of Orick. Comment
  UC13825  Dichelostemma multiflorum Harley P. Chandler Jun 1901 1310 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  SD58400  Dichelostemma venustum Milo S. Baker 1923-7-28 138 d Humboldt Locality given as: growing within a few feet of Brodiaea Collector's #137.; not in our database at present 3/19/08; ?Baker Collector's #137 in our collection. Comment
  CAS-BOT-BC151742  Diplacus kelloggii Milo S. Baker 1925-4-7 241 a Humboldt Blue Lake Comment
  UC1197656  Disporum hookeri Joseph P. Tracy 1924-4-27 6648 Humboldt Redwood Creek, at Berry's Redwood Creek; Northern Coast Ranges, , Berry's 274 Comment
  CDA15326  Distichlis spicata R. Spadoni 1998-10-5 s.n. Humboldt North Coast; Common to dominant perennial in grasslands around salt marsh near Loleta. 0 Comment
  HSC9630  Distichlis spicata J. A. Waller 1965-5-21 48 Humboldt Salt Marsh off of Samoa Rd. Comment
  HSC102009  Dodecatheon alpinum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 910 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC45263  Dodecatheon hendersonii M. Alcasas 1978-4-7 4 Humboldt Freshwater Rd. 1/2 mi. N of Kneeland School 857 Comment
  HSC98690  Dodecatheon hendersonii subsp. hendersonii Cara Witte 2008-6-9 702 Humboldt Off National Forest 1, near Board Camp Mountain. Approximately 4 miles south of Brays Opening and 1/2 mile west of the road. 1506 Comment
  HSC57990  Draba howellii G. L. Clifton, Terry Griswold 1979-7-31 11738 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC18756  Drymocallis glandulosa Lincoln Constance 1934-6-15 878 Humboldt Summit of Grasshopper Peak, S Fork Eel River, Bull Creek region 976 Comment
  HSC40775  Drymocallis hansenii Thomas W. Nelson 1976-7-9 3012 Humboldt S of Mt. Lassic (Signal Peak) 1707 Comment
  JEPS109584  Dulichium arundinaceum Dean W. Taylor 2002-9-12 18344 Humboldt Lake Prairie, remnant of the original bog vegetation on the eastern end of the lake 1097 Comment
  HSC45062  Dysphania botrys R. Sutherland 1976-8-13 15 .13876 Humboldt Redwood Creek, Whittemore Grove. 87 Comment
  UC212863  Echinochloa crus-galli Joseph P. Tracy 1920-8-15 5370 Humboldt Klamath River at Bluff Creek; Northern Coast Ranges, Klamath River at Bluff Creek 152 Comment
  UC1100261  Echinochloa crus-galli var. crus-galli Malcolm A. Nobs and S. Galen Smith 1949-8-9 1240 Humboldt Town of Blue Lake; s side Comment
  OBI22607  Eleocharis acicularis Joseph P. Tracy 1934-7-13 13393 Humboldt Dow's Prairie Comment
  CAS-BOT-BC112844  Eleocharis macrostachya Carl B. Wolf 1927-8-22 793 Humboldt Big Lagoon Comment
  JEPS19331  Eleocharis pachycarpa Joseph P. Tracy 1935-6-8 13947 Humboldt along coast in front of Stone Lagoon (Dry Lagoon); Dry Lagoon 3 Comment
  CAS-BOT-BC112660  Eleocharis parvula Robert F. Thorne; P. Everett 1965-8-9 35342 Humboldt along Hwy 101, ca 3 mi N of Eureka along roadside. 1 Comment
  UC526781  Elymus elymoides subsp. elymoides Joseph P. Tracy 1932-7-14 10531 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  UC552794  Elymus elymoides subsp. elymoides Joseph P. Tracy 1935-7-23 14134 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC58629  Elymus elymoides var. elymoides Overton, Butler 1979-7-31 11482 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1940 Comment
  UC187094  Elymus glaucus J. P. Tracy 1902-7-4 1760 Humboldt Immediate vicinity of Eureka 0 Comment
  CAS-BOT-BC203471  Elymus glaucus subsp. glaucus Joseph P. Tracy 1935-7-21 14119 Humboldt Mouth of Bremer Creek. Trinity River Valley, at Willow Creek 152 Comment
  JEPS71189  Elymus glaucus subsp. glaucus W. L. Jepson 1936-8-8 17859 Humboldt Richardson Grove South Fork Eel River Comment
  UCD62346  Elymus glaucus subsp. glaucus A. A. Beetle; G. L. Stebbins Jr. 1942-6-1 3454 Humboldt 2 miles north of Orleans. Klamath River. Comment
  HSC9747  Elymus glaucus subsp. virescens J. P. Tracy 1927-6-26 8213 Humboldt Stone Lagoon Comment
  UC682043  Elymus glaucus subsp. virescens G. L. Stebbins Jr. and G. L. Church 1941-5-26 3106 Humboldt just n Little River (s of Trinidad, bluff facing sea) Comment
  HSC9728  Elymus mollis subsp. mollis E. W. Styskel 1964-5-7 82 Humboldt 2 miles S of Samoa near Samoa Rd. Comment
  UC187090  Elymus multisetus Joseph P. Tracy 1908-6 2691 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC185826  Elymus trachycaulus Joseph P. Tracy 1912-7-27 3885 Humboldt Kneeland Prairie Northern Coast Ranges of California 762 Comment
  HSC33187  Empetrum nigrum Gary S. Lester, Linda M. Barker 1975-3-29 600 Humboldt Elk Head, N of Trinidad Head 15 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
  HSC43233  Epilobium brachycarpum R. Sutherland 1976-8-18 2 .18876 Humboldt Briceland 183 Comment
  POM225520  Epilobium brachycarpum P. A. Munz 1936-8-13 14381 Humboldt 10 miles west of Willow Creek. Comment
  UCR179429  Epilobium brevistylum J. M. Tucker 1948-9-3 1858 Humboldt North Coast Range, Six Rivers National Forest, Clear Lake, near junction of Friday Ridge Road and Horse Mountain/Grouse Mountain Road 1494 Comment
  UC146135  Epilobium ciliatum subsp. ciliatum Joseph P. Tracy 1909-7-31 3053 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC103258  Epilobium ciliatum subsp. glandulosum John McRae 2012-9-11 Humboldt Six Rivers National Forest, Trinity Mountain Quad, Lower Trinity District, Tish Tang Creek. 1311 Comment
  HSC23493  Epilobium ciliatum subsp. watsonii R. A. Vanbianchi 1971-9-10 84 Humboldt Along Fieldbrook Rd. .7 mi. from Jct. with old Hwy. 299 Comment
  POM247161  Epilobium ciliatum subsp. watsonii H. E. Parks, S. T. Parks 1937-07 24050 Humboldt Spruce Cove, Trinidad. 64 Comment
  UC562505  Epilobium ciliatum subsp. watsonii Joseph P. Tracy 1936-8-17 15153 Humboldt near Field's Landing (borders of pond) 6 Comment
  UC583056  Epilobium ciliatum subsp. watsonii P. A. Munz 1936-8-13 14385 Humboldt roadside ditch Clam Beach Comment
  HSC49630  Epilobium minutum Thomas W. Nelson, Jane P. Nelson 1977-5-30 3401 Humboldt Mckeown Ranch N of Dinsmore, Mad River 610 Comment
  HSC67212  Epilobium minutum Thomas W. Nelson, James Nelson 1980-6-10 5441 Humboldt Along branch road off Swayback Ridge Rd., 1/2 mi. E of junction 1372 Comment
  HSC97438  Equisetum hyemale subsp. affine Ivy Watson 2008-10-11 59 Humboldt Near Mad River mouth, S bank, about 500 ft. from river 9 Comment
  UC667934  Equisetum hyemale subsp. affine Joseph P. Tracy 1937-3-21 15234 Humboldt near Grizzly Creek Van Duzen River 91 Comment
  POM182455  Equisetum laevigatum Joseph P. Tracy 1913-6-16 4142 Humboldt Dinsmore s Ranch, in valley of Van Duzen River. Opposite Buck Mtn. 762 Comment
  CHSC24858  Equisetum telmateia subsp. braunii M. B. Simpson 1976-4-10 25 Humboldt Ca. 100 yds e of West Haven Dr, on n side of Wagon Wheel Rd, ca. 13 mi n of Arcata. 121 Comment
  HSC887  Equisetum telmateia subsp. braunii Dan O'Brien 1962-5-20 Humboldt 0.5 mi. E of Humboldt State University campus Comment
  HSC93222  Equisetum telmateia subsp. braunii Gordon Leppig 1998-3-9 714 Humboldt Arcata, West End Rd., 0.3 mi. W of Ericson Way 30 Comment
  UCR48863  Erechtites prenanthoides R. D. Goeden, Don W. Ricker 1987-9-2 870902- 20 Humboldt Beside Mattole Rd at Bear River Ridge, south of Ferndale 525 Comment
  UC1198997  Eremocarpus setiger Joseph P. Tracy 1948-9-20 18219 Humboldt Hoopa Valley 121 Comment
  UC535715  Eremocarpus setiger Eleanor Armstrong 1934-7-18 1129 Humboldt Richardson Grove 121 Comment
  HSC102066  Eremogone congesta var. congesta M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 968 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  CAS-BOT-BC58928  Erica T. C. Fuller 1961-3-22 5938 Humboldt N. slope Humboldt Hill, Eureka Comment
  CAS-BOT-BC298298  Ericameria nauseosa var. speciosa Joseph P. Tracy 1929-8-18 8652 Humboldt Larrabee Valley 701 Comment
  HSC97978  Erigeron aliceae Cara Witte 2007-7-8 449 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  CAS-BOT-BC27342  Erigeron breweri var. klamathensis Joseph Prince Tracy 1937-7-24 15515 Humboldt Trinity Summit, 2 miles SE of Devil's Hole 1584 Comment
  RSA259579  Erigeron foliosus var. confinis Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2011 Humboldt French Camp, Bald Hills Comment
  HSC98678  Erigeron inornatus var. inornatus Cara Witte 2007-7-26 590 Humboldt National Forest 1 on Kinsey Ridge. 1/4 mile south of intersection with 4N06. Near power poles. 1283 Comment
  HSC70979  Erigeron klamathensis Gail Newton 1980-7-22 1667 Humboldt Near Devils Backbone 1554 Comment
  HSC97707  Erigeron maniopotamicus Thomas W. Nelson, James Nelson 1980-6-10 5395 Humboldt Jack Rabbit Valley, along Swayback Ridge 4-wheel drive road, 1 mi. S of junction with Forest Service road 1494 Comment
  CAS-BOT-BC214580  Erigeron philadelphicus D. E. Breedlove 1962-6-8 3064 Humboldt On U.S. Highway 101, 3 miles south of Orick Comment
  CAS-BOT-BC214582  Erigeron philadelphicus Doris K. Kildale 1926-3-22 1600 Humboldt Fleener Creek Comment
  POM126126  Erigeron strigosus Joseph P. Tracy 1923-6-27 6384 Humboldt Trinity River Valley, near Willow Creek Comment
  CAS-BOT-BC300281  Erigeron strigosus var. strigosus Harley P. Chandler 1901-6-1 1402 Humboldt North Coast Ranges. Klamath River 243 Comment
  CAS-BOT-BC259150  Eriogonum latifolium Marcus E. Jones 1931-7-12 28806 Humboldt Alton Comment
  CAS-BOT-BC259152  Eriogonum latifolium Tom Craig 1941-6-29 s.n. Humboldt Samoa Comment
  SD185287  Eriogonum latifolium G. K. Helmkamp, E. A. Helmkamp 2001-7-8 7016 Humboldt North coast: Samoa Peninsula, 2.6 mi S of CA-255 bridge across Humboldt Bay 14 Comment
  CAS-BOT-BC259164  Eriogonum latifolium Joseph P. Tracy 1938-7-15 16062 Humboldt Near bay shore at Bucksport, Eureka 6 Comment
  SEINET3386405 Image available Eriogonum latifolium Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-9 15112 Humboldt On sand dunes, Clam Beach, 15 miles N of Eureka Comment
  CAS-BOT-BC261490  Eriogonum nudum var. nudum A. A. Heller 1924-7-20 13863 Humboldt Along the Eel River at Phillipsville Comment
  CAS-BOT-BC261492  Eriogonum nudum var. nudum M. S. Jussel 1931-5-2 116 Humboldt Garberville Comment
  CAS-BOT-BC261493  Eriogonum nudum var. nudum Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  HSC32167  Eriogonum nudum var. nudum J. O. Sawyer 1970-6-24 2243 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  UC6392  Eriogonum nudum var. oblongifolium Harley P. Chandler June, 1901 1442 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  SEINET11945862  Eriogonum nutans var. nutans Tiehm 1995-5-21 12092 Humboldt extreme S end of Bilk Creek Mts, just NW of Sod House near where the Quinn River crosses hwy 140 1326 Comment
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Jun 2 2019
  UC1980559  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8346 Humboldt Along U. S. Forest Service Road 1 northwest of Grouse Mountain at milepost 14.3, about 10.3 air miles southwest of Salyer Comment
  UC672898  Eriogonum umbellatum var. nelsoniorum Joseph P. Tracy 1935-7-28 14328 Humboldt Head of Devil's Hole Trinity Summit, Devil's Hole 1828 Comment
  HSC99135  Eriogonum umbellatum var. nelsoniorum Cara Witte 2008-7-10 854 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 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
  JEPS34590  Eriophyllum lanatum var. achilleoides W. L. Jepson 1921-8-11 9417 Humboldt Big Lagoon Comment
  UC1199140  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1933-7-25 12875 Humboldt Grouse Mountain North Coast Ranges, Grouse Mountain 1524 Comment
  HSC44134  Eriophyllum lanatum var. grandiflorum Thomas W. Nelson, Jane P. Nelson 1977-7-4 3578 Humboldt Along W side of road N of Alder Springs, head of N Fork of Conley Creek 1280 Comment
  HSC67463  Eriophyllum lanatum var. grandiflorum J. P. Smith, Steve Selva 1970-6-14 3820 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  POM288402  Eriophyllum lanatum var. grandiflorum Lyman Benson 1929-7-14 1801 Humboldt Weott Ranger Station, South Fork Eel River. Comment
  UC176463  Eriophyllum staechadifolium Joseph P. Tracy 1913-7-13 4361 Humboldt Patrick's Point Patrick's Point (bluffs facing ocean) 30 Comment
  HSC8495  Erodium cicutarium R. T. Forester 1963-3-13 23 Humboldt 1/4 mi. N of Fairhaven on Samoa Rd. Comment
  HSC78966  Erodium moschatum L. P. Janeway 1984-5-16 791 Humboldt N Spit of Humboldt Bay, W side of Samoa Rd., 0.25 mi. N of the boat ramp 3 Comment
  SEINET13944098 Image available Eryngium aristulatum Joseph P. Tracy 1912-1 3777 & 4001 Humboldt Alton, Altitude ca 100 to 300 ft 91 Comment
  UC161540  Erysimum capitatum Joseph P. Tracy 1908-6-8 2636 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC73747  Erysimum capitatum var. capitatum M. A. Baker 1980-7-15 2949 Humboldt Near Whiting Ridge. 1341 Comment
  HSC49804  Erysimum menziesii R. York 1979-4-16 230 Humboldt Just E of Samoa drag strip. Comment
  HSC6789  Erysimum menziesii J. W. Johnson 1962-4-1 1414 Humboldt Samoa Peninsula, in a hollow behind the foredunes, near Dune 5, Christenson Farm. Comment
  UC1199176  Erysimum menziesii Joseph P. Tracy 1901-4-14 1019 Humboldt sand dunes of ocean beach Northern Coast Region, Humboldt Bay Comment
  CAS-BOT-BC153741  Erythranthe alsinoides Doris K. Kildale 1929-4-23 7438 Humboldt Kneeland Prairie 853 Comment
  SEINET8371203  Erythranthe dentata L. F. Henderson 1933-5-27 15635 Humboldt Arcata-Redding road. Comment
  SEINET8229973  Erythranthe nasuta Joseph P. Tracy 1920-5-18 5379 Humboldt South Fork Eel River; from South Fork to Scotia; 4 miles above Dyerville. 61 Comment
  HSC103293  Erythronium californicum Michael G. Simpson, Michael Mesler, Michael Mayer 2008-5-27 3005 Humboldt Six Rivers National Forest; ~ 4.6 mi. south of Hwy. 299 along Titlow Hill Rd., southeast of dirt intersection to Horse Mtn.; ~ 0.6 mi. south of Horse Mtn. Radio Tower. 1438 Comment
  JEPS505  Erythronium californicum Joseph P. Tracy 1938-6-13 15896 Humboldt Horse Mountain 1432 Comment
  RSA168935  Erythronium revolutum Joseph P. Tracy 1950-5-7 18650 Humboldt Near the Redwood House but on Yager Slope, head of South Yager Comment
  HSC104344  Erythronium revolutum James Regan, Humboldt Redwood Co., LLC 2007-5-9 6 Humboldt Kneeland 854 Comment
  HSC45483  Eschscholzia californica Maralyn O'Meara 1974-7-11 534 Humboldt Kneeland, Barry Ridge Comment
  HSC59103  Eucalyptus globulus Clark L. Miller 1979-5-24 9157 Humboldt Along Hwy. 101 ca. 100 yards from Murray Rd. off-ramp. Comment
  SEINET8222401  Euchiton sphaericus Joseph P. Tracy 1936-8-23 15162 Humboldt Carlotta. 30 Comment
  POM160838  Euonymus occidentalis H. E. Parks, Joseph P. Tracy 1925-6-14 7123 Humboldt Kneeland Prairie road. 457 Comment
  UC302982  Euphorbia spathulata Joseph P. Tracy 1926-5-9 7455 Humboldt near Bridgeville; Northern Coast Ranges 762 Comment
  CDA17336  Euphorbia virgata B. Freeman 2004-8-18 PDR 1403789 Humboldt Klamath Ranges; Mouth of Camp Creek, Hwy 96, Orleans. 0 Comment
  SEINET4206010  Fallopia convolvulus Chesnut, Drew 1888-7-25 s.n. Humboldt Grouse Creek Comment
  UCSB1573  Fallopia sachalinensis Parks, H.; Parks, S. 1952-07 Humboldt South of the Elk River Bridge on Highway 10 Comment
  UC1607839  Festuca Joseph P. Tracy and Harold E. Parks 1934-6-27 11078 Humboldt Grouse Mountain 1432 Comment
  HSC9852  Festuca californica D. C. Juve 1964-5-16 36 Humboldt Campbell Cr. Ranger Station. Hwy. 96. Hillside above Trinity River Comment
  CAS-BOT-BC278304  Festuca californica subsp. californica L. R. Abrams 1918-6-15 7126 Humboldt Brannan Mt near Willow Creek 1371 Comment
  HSC98591  Festuca californica var. californica Cara Witte 2007-6-14 281 Humboldt Along National Forest 1 on Kinsey Ridge. 1/2 mile north of White Oak Opening. 1258 Comment
  HSC32216  Festuca idahoensis J. O. Sawyer 1970-6-24 2229 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC32230  Festuca idahoensis J. O. Sawyer 1970-6-24 2231 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  UC526869  Festuca idahoensis Joseph P. Tracy 1930-6-8 8729 Humboldt Kneeland Prairie North Coast Ranges 762 Comment
  UCR137175  Festuca occidentalis Victor Duran 1933-5-11 3410 Humboldt Van Duzen River, near Bridgeville 197 Comment
  HSC37920  Festuca rubra Peter Sorensen 1976-7-14 Humboldt Woodley Island Comment
  HSC83339  Festuca rubra Andrea Pickart 1987-6-26 Humboldt Arcata, Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata. Comment
  UCD66357  Festuca rubra R. Tofsrud 1948-9-1 Humboldt Road junction near summit of Horse Mt. 1463 Comment
  UCD66439  Festuca subulata P. B. Kennedy 1923-8-3 Humboldt South of Scotia by road through redwoods off highway. Comment
  HSC38631  Festuca viridula D. E. Anderson, J. P. Smith 1971-6-14 - 1050 Humboldt Along railroad tracks at P.G.&E. power plant S of Eureka. Comment
  RSA183617  Fragaria californica D. E. Anderson 1965-5-1 3558 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek. Comment
  HSC89552  Fragaria vesca M. Roantree 1985-4-25 12 Humboldt E side of Trinidad Head Comment
  JEPS44672  Fragaria vesca Joseph P. Tracy 1932-7-15 10578 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  CAS-BOT-BC457926  Fragaria vesca subsp. californica Doris K. Kildale 1927-3-20 2910 Humboldt Phillipsville, south fork of Eel River Comment
  CAS-BOT-BC52737  Frangula californica subsp. californica Carl B. Wolf 1927-8-30 1226 Humboldt 2 mi. s. of Petrolia on the Matole River, near point where road crosses river. Comment
  LA207729  Frangula californica subsp. californica Carl B. Wolf; 1934-6-30 5842 Humboldt Back of Shelter Cove 60 Comment
  CAS-BOT-BC53403  Frangula californica subsp. occidentalis C. D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC53406  Frangula californica subsp. occidentalis John Thomas Howell 1937-7-31 13717 Humboldt 5 miles east of Berry Summit Comment
  CAS-BOT-BC59967  Frangula purshiana H. E. McMinn 1922-8-5 347 Humboldt Along Van Duzen River Comment
  CAS-BOT-BC136030  Fritillaria affinis Doris K. Kildale 1925-4-1 s.n. Humboldt Hungry Hollow near Korbell Comment
  HSC15534  Fritillaria affinis D. E. Anderson 1965-5-22 3730 Humboldt Hunt Ranch, 3-4 mi. N of Bridgeville. Comment
  UC1197625  Fritillaria affinis Joseph P. Tracy 1933-6-13 12575 Humboldt Hoopa Mountain, near summit on road from Hoopa westward to Bair's Hoopa Mountain 1066 Comment
  CAS-BOT-BC136028  Fritillaria affinis Doris K. Kildale 1926-3-22 1594 Humboldt Fleener Creek Comment
  CAS-BOT-BC136032  Fritillaria affinis John Thomas Howell 1954-4-25 29154 Humboldt Dune hills, Little River Comment
  UC179931  Fritillaria affinis Joseph P. Tracy 1914-5-3 4419 Humboldt Northern Coast Region, at Eureka Eureka; Northern Coast Region, Eureka 0 Comment
  HSC15530  Fritillaria purdyi Elrid H. Spinas 1948-5-22 Humboldt Horse Mtn. Comment
  RSA654821  Fumaria officinalis Gordon Leppig, Sylvia Leppig 2000-12-7 1523 Humboldt Arcata, 7th and I Street just west of Post Office 6 Comment
  HSC100645  Galium Carl C. Marshall Jun 1886 13 Humboldt Pilot Creek. Comment
  SEINET3024818  Galium ambiguum Joseph P. Tracy 1913-6-21 4248 Humboldt Dinsmore's Ranch; in valley of Van Duzen River opposite Buck Mountain 760 Comment
  UC176063  Galium ambiguum subsp. ambiguum Joseph P. Tracy 1912-7-31 3938 Humboldt near summit Northern Coast Ranges, Buck Mountain 1676 Comment
  SEINET11117327  Galium anglicum Unknown 1916-1 4730 Humboldt Alder Point, 500 ft. Comment
  HSC70928  Galium aparine R. York 1980-5-18 579 Humboldt Near Black Mtn 792 Comment
  HSC73126  Galium aparine M. A. Baker 1980-5-18 1305 Humboldt Near Black Mtn. 1006 Comment
  HSC73541  Galium aparine Gail Newton 1980-7-14 1477 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC26464  Galium aparine T. O. Osborne 1970-5-17 17 Humboldt Sugarloaf Rock, Cape Mendocino 76 Comment
  JEPS25681  Galium aparine P. C. Hutchison 1961-5-21 2005 B Humboldt US Hwy 101 1/4 mi s Holbrook Grove boundary (1/2 mi n of Redway, 3 1/4 mi n of Garberville, rocks e of hwy facing nw) 167 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
  UC1196099  Galium bifolium Joseph P. Tracy 1939-7-9 16331 Humboldt Snow Camp 1402 Comment
  UC1196088  Galium bolanderi Joseph P. Tracy 1926-6-27 7675 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  HSC19797  Galium bolanderi Lauramay T. Dempster, G. L. Stebbins 1963-7-9 3853 Humboldt 1/2 mi. E of Dinsmore on Hwy. 36 732 Comment
  UC169072  Galium boreale subsp. septentrionale Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5883 Humboldt Trinity Summit North Coast Ranges Comment
  RSA47106  Galium californicum Doris K. Kildale 1925-5-23 585 Humboldt Eureka. Comment
  JEPS6483  Galium divaricatum Lincoln Constance 1934-6-9 851 Humboldt Lower Look Prairie South Fork Eel River, Bull Creek Region (and Bull Cr. Rd., to Dyerville) Comment
  HSC103090  Galium grayanum var. nanum Sydney Carothers 2014-7-3 16 Humboldt Six Rivers National Forest, Lassics Botanical Area, Mt. Lassic, upper north slope 1775 Comment
  HSC19835  Galium muricatum Lauramay T. Dempster, G. L. Stebbins 1963-7-8 3844 Humboldt 1.8 mi. W of Willow Creek town, below Boise Creek Campground 183 Comment
  UC1196101  Galium parisiense Joseph P. Tracy 1924-8-10 6801 Humboldt on river bar near Strong's Station (10 mi e of Carlotta); Northern Coast Ranges 60 Comment
  UC416659  Galium parisiense Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5684 B Humboldt summit North Coast Ranges, Hoopa Mtn. Range (between Hoopa Val. and Redwood Creek) Comment
  UC1196080  Galium trifidum Joseph P. Tracy 1903-8-9 1944 Humboldt Eureka Northern Coast Region 0 Comment
  UC196081  Galium trifidum Joseph P. Tracy 1927-7-10 8246 Humboldt Alton Northern Coast Region 30 Comment
  HSC40955  Galium triflorum Linda M. Barker 1976-7-5 1649 Humboldt 3 mi. W of Arcata. Comment
  HSC57325  Galium triflorum Overton, Butler 1979-7-24 9643 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UC1199352  Gamochaeta ustulata Joseph P. Tracy 1918-7-6 5043 Humboldt South Fork of, near the Humboldt-Mendocino County line Eel River; Northern Coast Ranges, Eel River 152 Comment
  CAS-BOT-BC188531  Garrya elliptica Doris K. Kildale 1925-5-25 6043 Humboldt Eureka Slough, Eureka Comment
  CAS-BOT-BC188549  Garrya elliptica J. P. Tracy 1901-2-15 992 Humboldt Immediate vicinity of Eureka 152 Comment
  HSC8390  Garrya elliptica C. O. Baker 1962-3-22 3 Humboldt 2 mi. S of Trinidad along old Hwy. 101 122 Comment
  HSC89538  Garrya elliptica M. Roantree 1985-4-25 1 Humboldt E side of Trinidad Head. Comment
  HSC90216  Garrya elliptica Louise Watson, Jan Meninga Feb 1991 4 Humboldt Mad Rive Slough and Dunes, Cooperative Management area, 1/3mi from parking lot W of trail Comment
  UC1196887  Garrya elliptica Joseph P. Tracy 1921-2-27 5414 Humboldt Drakes Hill; Northern Coast Region 30 Comment
  HSC82186  Garrya fremontii Thomas W. Nelson 1977-6-15 3444 Humboldt Along old road to ski area 1372 Comment
  JEPS66730  Garrya fremontii Lincoln Constance 1934-6-19 907 Humboldt near summit Grasshopper Peak; South Fork Eel River, Bull Creek Region 914 Comment
  UC1174948  Garrya fremontii P. C. Everett and E. K. Balls 1959-10-24 23952 Humboldt Somesbar to Orleans (2.8 mi sw from Siskiyou-Humboldt County line) 198 Comment
  UC249599  Garrya fremontii Joseph P. Tracy 1922-6-18 6089 Humboldt Booth's Run Northern Coast Ranges (branch of Lawrence Creek) 609 Comment
  UC50488  Gastridium ventricosum J. Burtt Davy 1899-6-26 5868 Humboldt Hoopa Valley; North Coast Ranges, Hoopa Valley Comment
  UC1046521  Gaultheria ovatifolia Rimo Bacigalupi with J. P. Tracy, L. Constance, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3413 Humboldt meadow at Snow Camp, ridge between Mad River and Redwood Creek, Bald Mountain Snow Camp; Bald Mountain, Snow Camp 1432 Comment
  CAS-BOT-BC58909  Gaultheria shallon Mrs. Rachel Ellery 1916-4-1 s.n. Humboldt Beatrice Comment
  CHSC24746  Gaultheria shallon G. Strang 1976-4-11 9 Humboldt All along e side of U.S. 101 ca. 2 mi s of Orick. 9 Comment
  HSC12312  Gaultheria shallon Wendell Wood 1970-9-22 300 Humboldt McKinleyville, E end of Chateau Way 107 Comment
  HSC95595  Gaultheria shallon Andrea Pickart 2002-6-30 140 Humboldt Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 30 Comment
  RSA257013  Gaultheria shallon Gary D. Wallace 1971-7-29 949 Humboldt Prairie Creek Redwood St. Pk. along Zig Zag Trail #3 W of Hwy. 101. Comment
  RSA467226  Gaultheria shallon B. C. Templeton 1964-6-13 10086 Humboldt Lighhouse Point, Trinidad Head. Comment
  SBBG12430  Gaultheria shallon D. E. Breedlove 1961-7-4 645 Humboldt 4.8 mi E of the N fork of the Mad River on US 299 685 Comment
  SDSU2870  Gaultheria shallon Harvey 1938-8-13 2254 Humboldt West of Arcata. Comment
  UC1541490  Gaultheria shallon W. K. Parks 1932-6-1 1404 Humboldt vicinity of Trinidad Comment
  UC719770  Gaultheria shallon Rogers McVaugh 1941-8-3 6219 Humboldt 1 1/4 mi s of Headquarters of Patrick's Point State Park Comment
  UCSB7320  Gaultheria shallon Phillips, Priscilla 1958-6-9 Humboldt Bishop Pine Lodge, 2 mi. N of Trinidad Comment
  HSC55107  Gayophytum diffusum subsp. parviflorum G. L. Clifton 1979-7-31 11848 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UCR84793  Genista linifolia Kathy Harper 1992-5-14 s.n. Humboldt Coast Range, Van Duzen River, c. 1.5 mi. west of Bridgeville on State Hwy 36 195 Comment
  CDA4089  Genista monspessulana T. C. Fuller 1958-6-17 570 -58 Humboldt Lower Mattole. 0 Comment
  HSC14678  Genista monspessulana S. R. Johnson 1965-3-28 34 Humboldt 2.5 mi. N of Luffenholtz Beach Comment
  UCD105720  Genista monspessulana Joseph M. DiTomaso 1976-3-28 342 Humboldt Arcata, 3rd and 'D' streets. Comment
  UC1198638  Gentiana affinis var. ovata J. P. Tracy 1896-8 15 Humboldt immediate vicinity Eureka; Rick's Prairie 0 Comment
  UC1197401  Geranium carolinianum Joseph P. Tracy 1926-5-2 7421 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC165804  Geranium carolinianum J. P. Tracy 1901-6-23 1186 Humboldt immediate vicinity of Eureka 0 Comment
  UC1198952  Geranium core-core Joseph P. Tracy 1909-5-23 2977 Humboldt Eureka Northern Coast Region 0 Comment
  HSC23745  Geranium dissectum Tim Baroni 1971-7-6 126 Humboldt Bayside, 1/2 mi. from intersection of Old Arcata Rd. and Jacoby Creek Rd. on Jacoby Creek Rd. Comment
  HSC69586  Geranium dissectum R. Kalal 1980-7-20 89 Humboldt 0.1 mi. N of RR tracks along road to Arcata Marsh Project/Boat Launching Basin at foot of I St., Arcata 1 Comment
  HSC8640  Geranium dissectum R. D. Modafferi 1965-5-13 103 Humboldt 2.3 mi. N of Trinidad on Trinity St. 305 Comment
  UC164809  Geranium molle Joseph P. Tracy 1906-5-6 2436 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CAS-BOT-BC457031  Geum macrophyllum Volney Rattan 1883-3-6 s.n. Humboldt Unspecified Comment
  CHSC31278  Gilia capitata Mark Stopher 1980-5-28 75 Humboldt Along Rte 169, 7.5 mi w of Martins Ferry Bridge. Comment
  HSC74459  Gilia capitata M. A. Baker 1980-5-18 1364 Humboldt Near Black Mtn. 792 Comment
  RSA275284  Gilia capitata J. P. Smith 1973-5-26 6816 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  BLMAR590  Gilia capitata subsp. capitata Jennifer Wheeler 2010-7-13 590 Humboldt King range, along Panther Gap Road 792 Comment
  BLMAR718  Gilia capitata subsp. pacifica Jennifer Wheeler 2012-6-5 718 Humboldt King range, Mattole beach bluffs 18 Comment
  CAS-BOT-BC226144  Gilia capitata subsp. pacifica Mrs. G. Earle Kelly 1924-6-1 s.n. Humboldt Castle Island near Crescent City Comment
  CAS-BOT-BC226145  Gilia capitata subsp. pacifica Doris K. Kildale 1925-6-28 794 Humboldt Kneeland Prairie - bald hills 762 Comment
  UC1602182  Githopsis specularioides Harley P. Chandler Jun 1901 1345 Humboldt Hupa Reservation North Coast Ranges 152 Comment
  SD39903  Glehnia littoralis Edith A. Purer 1932-7-27 4151 Humboldt Near Samoa Comment
  SJSU8439  Glehnia littoralis subsp. leiocarpa H. T. Harvey 1977-7-5 606 Humboldt Elk R Spit, Humboldt Bay Comment
  CAS-BOT-BC282840  Glyceria striata H. P. Chandler 1901-6-1 1526 Humboldt Klamath River 426 Comment
  CAS-BOT-BC282850  Glyceria striata Joseph P. Tracy 1925-7-5 7170 Humboldt Bald Mountain near High Prairie 1066 Comment
  CAS-BOT-BC282852  Glyceria striata Joseph P. Tracy 1925-6-13 7086 Humboldt Eureka 60 Comment
  CAS-BOT-BC302534  Gnaphalium palustre Doris K. Kildale 1925-6-30 846 Humboldt Buhne's [Buhne] Point Comment
  HSC103783  Gnaphalium palustre M. Mesler, K. A. Wayman 2015-8-4 1645 Humboldt McKay Meadow 1545 Comment
  SD39800  Gnaphalium purpureum Edith A. Purer 1932-7-30 4676 Humboldt South of Orick Comment
  UCR122355  Gnaphalium stramineum George K. Helmkamp, E. A. Helmkamp 2001-7-8 7010 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  HSC34504  Goodyera oblongifolia J. D. Ackerman 1975-5-3 441 Humboldt Hwy. 299, 200 yds. E of Lord Ellis Summit Comment
  UC1212573  Goodyera oblongifolia Francia Chisaki, Helen Sharsmith 1959-8-22 4757 Humboldt Inner North Coast Ranges, Happy Camp, just over line from Trinity County Happy Camp Happy Camp; Inner North Coast Ranges, Happy Camp 914 Comment
  HSC53979  Gratiola ebracteata Griswold, Butler 1979-7-11 7054 Humboldt Near Twin Lakes, close to the town of Willow Creek 1417 Comment
  HSC37692  Grindelia hirsutula R. Sutherland 1976-8-6 13 .6876 Humboldt Disturbed edge of county road, just W of China Creek 223 Comment
  JEPS41893  Grindelia hirsutula W. L. Jepson 1936-8-18 17944 Humboldt Capetown Capetown (grassy flats by the sea) Comment
  SBBG62707  Grindelia hirsutula L. Rowntree 1931-7-26 Humboldt Carlotta Comment
  POM161906  Grindelia stricta var. stricta Joseph P. Tracy 1921-7-10 5856 Humboldt Big Lagoon. 6 Comment
  SD61044  Grindelia stricta var. stricta Darley F. Howe 1964-8-10 3952 Humboldt 5.7 miles north of Eureka on [U.S.] 101. Comment
  UC449871  Hackelia bella P. E. Goddard 1906-6 677 Humboldt Sasseck Peak Comment
  UC525565  Hackelia bella Joseph P. Tracy Jul 16 1930-Jul 19 1930 9023 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC158026  Hedera helix Joseph P. Tracy 1939-1-22 16185 Humboldt Blue Slide on Van Duzen River 91 Comment
  HSC52152  Helenium bigelovii Griswold, Butler 1979-7-11 7007 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  HSC57978  Helenium bigelovii G. L. Clifton, Griswold 1979-7-31 11702 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  CAS-BOT-BC306613  Helenium bigelovii Doris K. Kildale 1925-8-15 1173 Humboldt Elk Horn Prairie - Trinity Summit 1539 Comment
  UC1223096  Helenium bigelovii Joseph P. Tracy 1950-7-25 19071 Humboldt McKay Camp Comment
  CAS-BOT-BC306865  Helenium bolanderi Doris K. Kildale 1929-8-5 8773 Humboldt Big Lagoon Comment
  RSA246777  Helenium bolanderi R. F. Thorne, Percy C. Everett 1965-8-9 35286 Humboldt Big Lagoon. 3 Comment
  CAS-BOT-BC306871  Helenium bolanderi L. R. Abrams; R. Bacigalupi 1922-6-25 8261 Humboldt Between Trinidad and Big Lagoon Comment
  CHSC57416  Hemizonella minima L. P. Janeway 1984-6-23 897 Humboldt Titlow Hill. On ridge top. 1478 Comment
  UC1565811  Hemizonella minima R. Spellenberg 1990-7-9 10228 Humboldt on USFS Rd 1 20.5 mi s Calif. Hwy. 299 and Berry Summit (14 air mi sw of Burnt Ranch, extreme e edge of county); Pilot Ridge 1371 Comment
  HSC100436  Hemizonella parvula Carl C. Marshall Jun 1886 25 Humboldt South Fork Mtn. Comment
  CAS-BOT-BC306080  Hemizonia congesta subsp. clevelandii H. E. Parks; J. P. Tracy 1930-5-25 0880 Humboldt Near Bridgeville Comment
  HSC35966  Hemizonia congesta subsp. tracyi Thomas W. Nelson, James Nelson, Jane P. Nelson 1975-6-21 1950 Humboldt Beside Hwy. 36 ca. 5 mi. E of Bridgeville Comment
  SBBG8413  Hemizonia congesta subsp. tracyi H. and M. Dearing 1939-5-24 3426 Humboldt near Capetown Comment
  UC1199368  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1925-5-30 7020 Humboldt 228 Comment
  UC249804  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1923-6-20 6338 Humboldt 4 mi n Garberville; Northern Coast Ranges 121 Comment
  UC677739  Hemizonia congesta subsp. tracyi S. K. Harris 1936-6-20 699 Humboldt 1 mi w Bridgeville; Van Duzen River Comment
  UCSB25051  Heracleum maximum Keefe, Joseph 1967-7-8 Humboldt Brushy roadside, junction crannell Road and Little River Drive, north of Eureka 6 Comment
  SBBG25781  Hesperocyparis macrocarpa E. R. Blakley 1966-8-17 6801 Humboldt Patrick's Pt, 5 mi N of Trinidad 60 Comment
  UC169327  Heterocodon rariflorum Joseph P. Tracy 1911-7-5 3329 Humboldt near Willow Creek mouth (tributary of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  POM89166  Heteromeles arbutifolia Joseph P. Tracy 1920-8-15 5389 Humboldt Klamath River at Bluff Creek. 152 Comment
  CAS-BOT-BC311075  Heterotheca oregona var. rudis Doris K. Kildale 1926-8-8 2478 Humboldt Dyerville Bridge 45 Comment
  UC1199410  Heterotheca oregona var. rudis Joseph P. Tracy 1939-8-5 16389 Humboldt Dinsmore's Van Duzen River 737 Comment
  UC165075  Heterotheca oregona var. rudis Joseph P. Tracy 1908-6 2924 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  SEINET3166896  Heterotheca oregona var. rudis Unknown 1986-8-18 8529 Humboldt Near Myer's Flat. Gravel bars of S fork of Eel River at U.S.-101 Comment
  JEPS43498  Heuchera micrantha Lincoln Constance 1934-5-26 680 Humboldt South Fork Eel River (North Dyerville Flat Grove, near Founders Tree); Bull Creek Region 48 Comment
  UC582416  Hieracium albiflorum Joseph P. Tracy 1929-7-4 8613 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC312396  Hieracium albiflorum Henry M. Pollard 1947-9-1 s.n. Humboldt Naer summit of Somes Mountain, Orleans region 1219 Comment
  UC582421  Hieracium albiflorum Joseph P. Tracy 1937-8-7 15620 Humboldt Bald Mt. 914 Comment
  JEPS72935  Hierochloe occidentalis Lincoln Constance 1934-5-31 749 Humboldt along n side Bull Cr. (from w boundary of Park to Grasshopper Pk.(Squaw Cr.) rd,); South Fork Eel River, Bull Cr. flat Comment
  UC1224689  Hierochloe occidentalis D. E. Anderson 1964-3-22 2925 Humboldt on roadcut on n side of creek Jacoby Creek Comment
  UCD115146  Hirschfeldia incana Joseph P. Tracy 1931-5-21 9434 Humboldt Eel River, Alton to Fortuna. 15 Comment
  UC38600  Holcus lanatus Harley P. Chandler May 1901 1118 Humboldt Humboldt Bay; North Coast Ranges, Humboldt Bay 30 Comment
  HSC40499  Holodiscus discolor Thomas W. Nelson, James Nelson 1976-7-26 3043 Humboldt E side of middle peak of Mount Lassic group, Signal Peak 1738 Comment
  HSC58168  Holodiscus discolor G. L. Clifton, Griswold 1979-8-2 12239 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  SD51265  Holodiscus discolor Darley F. Howe 1961-8-1 Humboldt 3.3 miles north of Trinidad on #101 Comment
  UC1198705  Holodiscus discolor Joseph P. Tracy 1912-7-31 3932 Humboldt Northern Coast Ranges, Buck Mountain near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1676 Comment
  UCSC000355  Holodiscus discolor H. L. Person 1932-6-25 s.n. Humboldt E. of Korbel Korbel - Eureka Comment
  UC1103486  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1943-7-18 17439 Humboldt Big Lagoon 6 Comment
  HSC76236  Horkelia tridentata var. flavescens Denis Kearns 1981-7-6 83 Humboldt Near Mosquito Lake 1256 Comment
  HSC58539  Hosackia oblongifolia var. oblongifolia Overton, Butler 1979-7-23 9469 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  HSC40551  Hydrophyllum occidentale Thomas W. Nelson, Jane P. Nelson 1976-5-23 2522 Humboldt SW facing slopes 1666 Comment
  HSC13541  Hydrophyllum tenuipes H. E. Parks, J. P. Tracy 1930-5-25 863 Humboldt Van Duzen River 305 Comment
  UC668261  Hypericum anagalloides Joseph P. Tracy 1933-8-6 12945 Humboldt French Camp Ridge 1066 Comment
  UC1198399  Hypericum perforatum Joseph P. Tracy 1934-7-2 13290 Humboldt Trinidad 3 Comment
  RSA424593A  Hypericum perforatum T. S. Elias, Barbara A. Elias 1987-8-26 10630 Humboldt Fernbridge, 0.5 mile S of Route 101; along West bank of Eel River, about 0.5 mile N of bridge. Comment
  RSA46497  Hypericum perforatum Doris K. Kildale 1925-6-29 932 Humboldt Van Duzen R. near Alton Comment
  UC169053  Hypochaeris glabra Joseph P. Tracy 1912-7-25 3812 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC311432  Hypochaeris radicata Alice Eastwood 1923-8-16 12332 Humboldt Carlotta Comment
  UC166804  Hypochaeris radicata J. P. Tracy 1909-7-4 3007 Humboldt immediate vicinity Eureka 0 Comment
  UC668130 Image available Iliamna latibracteata Joseph P. Tracy 1938-8-14 16104 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
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Feb 27 2012
  HSC48816  Ipomopsis aggregata Brad Klipfel 1973-7-31 230 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC99250  Iris chrysophylla T. Jimerson, J. Pageau 1979-6-13 551 Humboldt Near Slate Creek Butte, close to the town of Orleans 549 Comment
  JEPS539  Iris douglasiana W. L. Jepson 1932-8-9 16543 Humboldt Bull Creek Comment
  HSC13853  Iris douglasiana J. C. Reppas 1963-3-16 1 Humboldt 820 Fickle Hill Rd. Comment
  HSC13862  Iris douglasiana S. R. Johnson 1965-4-16 44 Humboldt 1.5 mi. S of Luffenholtz Beach Comment
  JEPS86128  Iris douglasiana Wayne Roderick 1966-5-5 Humboldt ca 2 mi e Carlotta 30 Comment
  POM290986  Iris douglasiana Lyman Benson 1929-6-18 1734 Humboldt North of Arcata Comment
  UC702924  Iris douglasiana Alice Eastwood and John Thomas Howell 1937-6-23 4845 Humboldt 5 mi from Kneeland (on road to Yager) Comment
  JEPS17230  Iris purdyi Joseph P. Tracy 1938-3-27 15700 Humboldt Miranda South Fork Eel River (slopes along South Fork Eel River) 121 Comment
  SEINET3876004  Iris purdyi Rimo C. Bacigalupi, William Constance; S. M. Tracy; R. Moran; R. L. Rodriguez; S. Carlquist 1951-6-14 3414 Humboldt Under forest in meadow about Snow Camp. Ridge between Mad River and Redwood Creek, Bald Mountain.; 0 1433 Comment
  HSC66479  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-5-9 450 Humboldt FS Rd. 12N20, 1.5 mi. W of its junction with FS Rd. 15N01, Orleans 793 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
  UC14930  Iris tenuissima Mrs. M. H. Manning Apr 1902 Humboldt near Hupa Comment
  UC175827  Iris tenuissima Joseph P. Tracy 1913-6-22 4263 Humboldt opposite, Dinsmore's Ranch, in valley of Van Duzen River Buck Mountain; Northern Coast Ranges, Van Duzen River 762 Comment
  HSC41278  Iris tenuissima Brad W. Klipfel 1974-6-25 434 Humboldt Horse Mtn., NW of the towers Comment
  HSC90644  Isolepis cernua Gail Newton 1982-5-2 2513 Humboldt Elk River Wildlife Area, Eureka Comment
  POM187933  Jaumea carnosa Marcus E. Jones 1931-7-16 29118 Humboldt Arcata. Comment
  UC1199148  Jaumea carnosa J. P. Tracy 1901-8-7 1251 Humboldt salt marsh Samoa (immediate vicinity of Eureka) 0 Comment
  RSA246799  Juncus balticus subsp. ater Robert F. Thorne, Percy C. Everett 1965-8-9 35290 Humboldt Big Lagoon. 3 Comment
  HSC38832  Juncus bolanderi R. Sutherland 1976-8-13 813876 Humboldt Whittemaore Grove at edge of forest 213 Comment
  UC2494  Juncus bolanderi H. N. Bolander June 1867 6584 Humboldt near Elk Ridge Comment
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Jul 31 2010
  UC963870  Juncus bufonius H. E. Parks and S. T. Parks 1943-7-1 24254 Humboldt Spruce Cove North Coast Ranges, Trinidad 60 Comment
  RSA168857  Juncus capitatus Joseph P. Tracy 1948-6-13 18045 Humboldt Dobbyn Creek; At the former Will Perry Place. 152 Comment
  HSC98006  Juncus covillei Cara Witte 2007-7-12 516 Humboldt Forest Service Road 5N10. 2 miles east of intersection with National Forest 1. 1339 Comment
  HSC99805  Juncus effusus subsp. pacificus Thomas W. Nelson 1975-9-24 2202 Humboldt Beside Indianola Rd., 0.5 mi. E of junction with Hwy. 101 Comment
  JEPS63893  Juncus effusus subsp. pacificus W. L. Jepson 1932-7-29 16440 Humboldt Weatt Comment
  HSC74694  Juncus laccatus Gail Newton 1981-7-24 2301 Humboldt Near Chaparral Mtn. 1433 Comment
  UC183658  Juncus occidentalis Joseph P. Tracy 1912-7-21 3788 Humboldt Alton Northern Coast Ranges 30 Comment
  UC184181  Juncus occidentalis Joseph P. Tracy 1912-7-31 3911 Humboldt near Buck Mountain summit; Northern Coast Ranges 1219 Comment
  UC249746  Juncus occidentalis Joseph P. Tracy 1923-6-19 6295 Humboldt Upper Mattole Valley Northern Coast Ranges 152 Comment
  HSC102628  Juncus orthophyllus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1613 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  RSA70263  Juncus phaeocephalus var. phaeocephalus F. W. Peirson 1923-7-11 3669 Humboldt 7 miles N of Arcata, Humboldt County Comment
  RSA178532  Juncus tenuis Joseph P. Tracy 1937-8-3 15609 Humboldt Near Blue Lake, along Mad River. 15 Comment
  CAS-BOT-BC81147  Juniperus occidentalis Copeland 1903-7-4 3545 Humboldt Klamatha Comment
  HSC82411  Kalmia polifolia Thomas W. Nelson 1979-7-11 5018 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC73764  Keckiella corymbosa Gail Newton 1980-7-23 1743 Humboldt Near Packsaddle Ridge 1463 Comment
  RSA424320  Keckiella corymbosa Unspecified 1920-7-15 s.n. Humboldt Arcata vicinity. Comment
  UC213144  Keckiella corymbosa Joseph P. Tracy 1920-8-15 5360 Humboldt Bluff Creek; Northern Coast Ranges, Klamath River 152 Comment
  UC577409  Keckiella corymbosa Joseph P. Tracy 1933-9-9 13074 Humboldt vicinity Garberville (rocks along South Fork of Eel River); South Fork of Eel River 121 Comment
  HSC36460  Keckiella lemmonii Thomas W. Nelson, B. Reinhardt 1975-7-30 2108 Humboldt Beside Rd. out Whiting Ridge Comment
  CAS-BOT-BC499191  Kopsiopsis strobilacea C. Young 1967-5-15 s.n. Humboldt Orleans Comment
  SEINET11811122  Lactuca ludoviciana J. P. Tracy 1950-1 19368 Humboldt Klamath River, near Slate Creek below Orleans 8 mi 122 Comment
  UC1051584  Lactuca saligna Joseph P. Tracy 1943-11-28 17462 Humboldt Alton, Fortuna 15 Comment
  UCD133531  Lactuca saligna Joseph P. Tracy 1946-8-25 17650 Humboldt Eel River, Alton to Fortuna. 15 Comment
  UC1223225  Lagophylla ramosissima Joseph P. Tracy 1950-8-4 19259 Humboldt ne lookout ((at head of Canoe Creek)); Bull Creek State Park, Grasshopper Peak Comment
  HSC95607  Lamiastrum galeobdolon Gordon Leppig, Kai Neander 2000-4-13 1292 Humboldt Arcata Community Forest, 100 m S of trail 5 & 10 intersection 91 Comment
  UC577363  Lamium amplexicaule Joseph P. Tracy 1934-7-12 13380 Humboldt Eureka; Northern Coast Ranges 0 Comment
  RSA44416  Lapsana communis H. M. Pollard 1948-7-19 s.n. Humboldt River road near Van Fleet Ranch Comment
  UC1199135  Lasthenia californica subsp. californica Joseph P. Tracy 1932-5-1 9856 Humboldt Redway 182 Comment
  HSC71352  Lathyrus latifolius J. P. Smith, J. O. Sawyer 1976-5-2 8622 Humboldt 3.7 mi. N of junction with Hwy. 299 on Hwy. 96 61 Comment
  HSC71617  Lathyrus latifolius J. P. Smith 1973-5-26 6800 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC14739  Lathyrus littoralis H. E. Parks 1930-5-24 798 Humboldt Little River Lagoon 0 Comment
  UC1199081  Lathyrus littoralis Joseph P. Tracy 1933-5-20 12223 Humboldt Cape Mendocino 6 Comment
  UCR122373  Lathyrus littoralis George K. Helmkamp, E. A. Helmkamp 2001-7-8 7014 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  RSA90281  Lathyrus littoralis F. W. Peirson 1923-7-11 3623 Humboldt 18 miles north of Eureka. Comment
  HSC33416  Lathyrus nevadensis var. nevadensis Thomas W. Nelson 1974-5-30 1346 Humboldt Along Hoopa-Redwood Valley Rd. Comment
  CAS-BOT-BC205043  Lathyrus palustris Malcom A. Nobs; S. Galen Smith 1949-8-3 1187 Humboldt At the southern outskirts of Eureka Comment
  SBBG3360  Lathyrus polyphyllus H. and M. Dearing 1933-5-16 825 Humboldt near Weott Comment
  HSC100520  Lathyrus torreyi Carl C. Marshall Jun 1886 319 Humboldt Trail E of Hoopa. Comment
  JEPS55299  Lathyrus torreyi W. L. Jepson 1902-6-25 1937 Humboldt near Acorn P.O. Comment
  RSA138214  Lathyrus torreyi Volney Rattan 1903-1 1878 Humboldt [No location data on label] Comment
  RSA168908  Lathyrus torreyi Joseph P. Tracy 1942-6-28 17272 Humboldt On Murphy Ridge beyond the meadows. Comment
  UC1222403  Lathyrus torreyi Joseph P. Tracy 1942-6-28 17272 Humboldt e of Korbel (on Murphy Ridge beyond the meadows); Bald Mountain, Murphy Ridge Comment
  HSC26250  Lathyrus vestitus subsp. bolanderi Thomas W. Nelson 1972-11-2 700 Humboldt Hwy. 36, 5 mi. W of Dinsmore. Comment
  CAS-BOT-BC325998  Layia carnosa Alice Eastwood 1907-5-15 s.n. Humboldt Samoa Comment
  JEPS40021  Layia gaillardioides W. L. Jepson 1902-8-3 2140 Humboldt Bear River Range to Petrolia Comment
  UC183700  Ledum glandulosum Joseph P. Tracy 1913-9-9 4399 Humboldt Patrick's Point; Northern Coast Ranges, Patrick's Point 30 Comment
  CAS-BOT-BC534635  Lemna minor Henry M. Pollard 1956-10-13 2 Humboldt near Orleans Comment
  HSC12416  Leontodon saxatilis subsp. saxatilis D. Santana Oct 1970 27 Humboldt Road side near Big Lagoon Comment
  UC175386  Leontodon saxatilis subsp. saxatilis J. P. Tracy 1909-7-4 3008 Humboldt immediate vicinity Eureka 0 Comment
  CHSC33025  Lepidium didymum James P. Smith 1973-5-26 6876 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Railroad right-of-way. Comment
  CAS-BOT-BC89492  Lepidium heterophyllum Joseph P. Tracy 1942-6-15 17140 Humboldt Miranda. 91 Comment
  BLMAR462  Lepidium nitidum Jennifer Anthony-Wheeler 2008-3-7 462 Humboldt Samoa dunes, growing in Samoa #3 Endangered Plant Protection Area 12 Comment
  HSC97990  Leptosiphon ciliatus subsp. ciliatus Cara Witte 2007-7-8 431 Humboldt Board Camp Mountain. Pack trail 4E26. 1463 Comment
  UC180236  Leptosiphon latisectus Joseph P. Tracy 1914-5-14 4423 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  HSC32510  Lessingia nemaclada Thomas W. Nelson 1973-9-3 1137 Humboldt E of Dinsmore beside Hwy. 36 Comment
  UC1115822  Lessingia nemaclada Joseph P. Tracy 1939-9-4 16476 Humboldt opposite Buck Mountain (Dinsmores); Valley of Van Duzen River 762 Comment
  BLMAR263  Leucanthemum vulgare Jennifer Anthony-Wheeler 1999-6-16 263 Humboldt Headwaters Forest Reserve, On trail to ' Scar rd ' 487 Comment
  UCD134127  Leucanthemum vulgare Lincoln Constance 1934-6-6 827 Humboldt Bull Creek Region, South Fork Eel Rive, Fire Trail, Dyerville to Horse Prairie and return. Comment
  SEINET3072000 Image available Lewisia leeana Joseph P. Tracy 1935-7-24 14200 Humboldt Trinity summit. Near ranger station 1830 Comment
  RSA34294  Leymus mollis subsp. mollis J. Wendell Howe 1933-5-23 s.n. Humboldt Somoa Comment
  UC1197171  Ligusticum apiifolium Joseph P. Tracy 1918-9-8 5100 Humboldt at Eureka Northern Coast Ranges, Eureka 0 Comment
  UC1541380  Ligusticum apiifolium Harold E. Parks May 1933 4311 Humboldt Trinidad, Spruce Cove Comment
  HSC44546  Ligusticum californicum Brad Klipfel 1973-7-15 165 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC56158  Ligusticum grayi G. L. Clifton, Terry Griswold 1979-8-1 12025 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  SEINET231011 Image available Ligusticum grayi A. Tiehm 1985-7-26 10005 Humboldt Santa Rosa Range seep at the head of Morey Creek E of Ridge crest at S end of range Comment
Read comments
Oct 28 2014
  UC672870  Lilaea scilloides Joseph P. Tracy 1933-5-20 12274 Humboldt back of Cape Mendocino (Cape Ridge); Cape Ridge 304 Comment
  UC205462  Lilaeopsis occidentalis Joseph P. Tracy 1920-8-29 5391 Humboldt mouth of Little R.; Northern Coast Ranges 6 Comment
  CAS-BOT-BC508397  Lilium columbianum W. R. Dudley 1899-1-1 s.n. Humboldt Big Lagoon, south of Klamath River Comment
  CAS-BOT-BC508404  Lilium columbianum A. M. Vollmer; L. Beane 1951-7-1 s.n. Humboldt A few miles north of Arcata, logging road near U.S. 101 Comment
  CAS-BOT-BC130688  Lilium occidentale A. M. Vollmer; L. Beane 1951-7-1 s.n. Humboldt Table Bluff, near Eureka Comment
  UC1198247  Lilium occidentale Joseph P. Tracy 1918-7-21 5078 Humboldt around Humboldt Bay Humboldt Hill; Northern Coast Ranges, Humboldt Bay, Humboldt Hill 182 Comment
  HSC53855  Lilium pardalinum subsp. pardalinum Griswold, Butler 1979-7-10 6322 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  HSC75956  Lilium pardalinum subsp. pardalinum Overton, Butler 1979-7-24 9774 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  HSC97994  Lilium washingtonianum subsp. purpurascens Cara Witte 2007-7-9 460 Humboldt Forest Service Road 4N32. 1.25 miles south of intersection with 4N32E. 1430 Comment
  UC668277  Limnanthes douglasii subsp. douglasii Joseph P. Tracy 1933-5-20 12271 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  UC1222731  Linanthus androsaceus Joseph P. Tracy 1950-6-15 18817 Humboldt 7 mi n Harris (at Huestis Rock, ne side of Mail Ridge); Mail Ridge, Huestis Rock Comment
  UC52735  Linanthus androsaceus Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  UC908948  Linanthus androsaceus Joseph P. Tracy 1927-5-8 7975 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  CHSC1747  Linaria vulgaris A. Small 1954-6-4 Humboldt Near Eureka. Comment
  POM203675  Linaria vulgaris I. L. Wiggins 1932-7-19 5890 Humboldt Roadside near Trinidad Head, Comment
  RSA54141  Lindernia dubia var. dubia H. M. Pollard 1945-9-5 s.n. Humboldt Wilson Creek, Klamath River Canyon 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
  HSC76247  Linnaea borealis subsp. longiflora Teresa Prendusi 1981-7-7 122 Humboldt Near Slate Creek Butte. 1158 Comment
  UC1561309  Linum bienne Barbara Ertter with Thomas J. Delendick 1987-5-16 6911 Humboldt 8 mi e of Arcata (9 1/2 mi w of Lord Ellis Summit, Highway 299 roadside); Highway 299 Comment
  HSC15801  Linum bienne Francis Winter 1960-4-24 Humboldt 1 mi. N of Redwood Creek Ranch 396 Comment
  CAS-BOT-BC136461  Listera cordata Greg de Nevers 2001-4-17 12250 Humboldt Field redacted by CAS, contact the data manager for more information 91 Comment
  JEPS37747  Lithocarpus densiflorus W. L. Jepson 1902-6 2024 A Humboldt Hupa Valley Comment
  UC1076088  Lithocarpus densiflorus Herbert L. Mason 1928-7-14 4899 Humboldt East Fork of Eel River East Fork of Eel River, Gaberville; Gaberville Comment
  SEINET12034162  Lithocarpus densiflorus J. P. Tracy 1950-1 19253 Humboldt Grasshopper Peak (in Bull Creek State Park at head of Canoe Creek) Comment
  CAS-BOT-BC36149  Lithocarpus densiflorus var. densiflorus Doris K. Kildale 1928-5-27 5947 Humboldt Kneeland Prairie Comment
  POM270405  Lithocarpus densiflorus var. densiflorus Lyman Benson 1929-7-19 1869 Humboldt Dry slope west of Bull Creek. Comment
  JEPS79924  Lobularia maritima Joseph P. Tracy 1940-10-5 16750 Humboldt near beach on isthmus leading to Trinidad Head Trinidad 3 Comment
  JEPS20909  Logfia gallica Joseph P. Tracy 1935-5-30 13914 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 Comment
  HSC100489  Lolium perenne Carl C. Marshall Jun 1886 226 Humboldt Near Arcata. Comment
  RSA296857  Lolium perenne subsp. multiflorum Lincoln Constance 1927-5-27 699 Humboldt Gravel bar of South Fork of Eel River, S. end of Dryerville Bridge 46 Comment
  UC33879  Lolium temulentum Chesnut and Drew 1888-7-13 Humboldt Campbell's Comment
  UC552790  Lolium temulentum Joseph P. Tracy 1935-5-25 13893 Humboldt Dobbyn Creek; Northern Coast Ranges, Dobbyn Creek 152 Comment
  HSC39043  Lomatium ciliolatum var. ciliolatum Thomas W. Nelson, Jane P. Nelson 1976-5-31 2657 Humboldt County line, S of meadow along 5E27 just N of its junction with 1S07 1524 Comment
  UC154252  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy July, 1908 2890 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt & Trinity Co.'s); Northern Coast Ranges, Humboldt & Trinity Co.'s 914 Comment
  UC314597  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1923-6-27 6380 Humboldt near the South Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  SEINET8465382 Image available Lomatium dissectum M. A. Baker 1980-6-8 1906 Humboldt Ammon Ridge Comment
  JEPS16236  Lomatium dissectum var. dissectum Joseph P. Tracy 1913-6-20 4237 Humboldt lower foothhills of Buck Mt. (on its n.w. slope); Northern Coast Ranges, Buck Mt. 762 Comment
  SEINET13944712 Image available Lomatium howellii William A. Weber 1965-1 12295 Humboldt hills 5 mi E of Bridgeville; 2100 ft alt 640 Comment
  HSC55837  Lomatium macrocarpum G. L. Clifton, Terry Griswold 1979-7-25 10774 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC97413  Lomatium macrocarpum Griswold, Butler 1979-7-10 6230 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  HSC37192  Lomatium macrocarpum Barbara Kelly 1976-5-13 253 Humboldt Below road at Kneeland Airport Comment
  UC1438147  Lomatium tracyi Barbara Kelly 1978-5-1 591 Humboldt 1/4 mi. from Horse Mt. Rd., 1/2 mi. below turnoff to summit, near end of unused gravel rd. Comment
  CAS-BOT-BC241402  Lonicera David D. Keck 1948-7-1 5975 Humboldt South side of Big Lagoon Comment
  HSC27656  Lonicera conjugialis G. L. Clifton, Terry Griswold 1979-7-25 10829 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  RSA171943  Lonicera hispidula var. vacillans R. F. Thorne 1957-9-2 19002 Humboldt Eel River. Burlington State Park, just S of Weott. Comment
  UC1125245  Lonicera hispidula var. vacillans H. L. Person 1932-7-23 N.w.S 16 Humboldt road e Korbel; Eureka Quadrangle Comment
  UC177242  Lonicera hispidula var. vacillans Joseph P. Tracy 1912-7-4 3735 Humboldt near Hydesville; Northern Coast Region 60 Comment
  CAS-BOT-BC241493  Lonicera involucrata var. ledebourii Philip A. Munz 1925-6-21 9893 Humboldt Clam Beach, no. of Eureka Comment
  CHSC68491  Lonicera involucrata var. ledebourii Vernon H. Oswald 1997-4-10 8319 Humboldt Road paralleling Hwy 101 between Clam Beach and Little River State Beach, north of Arcata. 30 Comment
  CHSC97979  Lonicera involucrata var. ledebourii Allison Poklemba 2002-4-10 5 Humboldt Pump Station 1 of the Mad River along Warren Creek Rd., Arcata. 13 Comment
  HSC3930  Lonicera involucrata var. ledebourii R. A. Rasp 1964-5-7 37 Humboldt 2 mi. S of Korbel on Simpson Lumber Co. land. Comment
  UC1225814  Lonicera involucrata var. ledebourii Joseph P. Tracy 1943-5-21 17413 Humboldt Alton North Coast Ranges, Van Duzen River 30 Comment
  UC534996  Lotus aboriginus H. E. Parks Jul 1932 Humboldt Bishop Pine Lodge Trinidad 60 Comment
  JEPS20790  Lotus aboriginus W. L. Jepson 1902-6 1944 Humboldt Berry Ranch Redwood Creek Comment
  CHSC68782  Lotus corniculatus Vernon Oswald 1997-6-5 8538 Humboldt Samoa Dunes Recreation Area at the south tip of the North Spit of Humboldt Bay. 6 Comment
  HSC26447  Lotus corniculatus Brad Klipfel 1973-4-28 16 Humboldt Along Canyon Creek, SW of Korbel Comment
  HSC78921  Lotus humistratus Jimerson, Imper 1982-5-17 1441 Humboldt Near Ashfield Ridge. 822 Comment
  UC169330  Lotus humistratus Joseph P. Tracy 1912-7-26 3833 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC97929  Lotus nevadensis var. douglasii Cara Witte 2007-6-14 284 Humboldt White Oak Opening. Along Kinsey Ridge. Near hunting camp. 1238 Comment
  RSA168892  Lotus oblongifolius Joseph P. Tracy 1936-6-3 14856 Humboldt Lack Pond, in Trinity River Valley, opposite mouth of Willow Creek. Comment
  UC495717  Lotus oblongifolius var. oblongifolius Joseph P. Tracy Jul 16 1930-Jul 19 1930 8997 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC1947582  Lotus oblongifolius var. oblongifolius Joseph P. Tracy 1919-5-31 5176 Humboldt near, at Lack Pond Willow Creek; Northern Coast Ranges, Trinity River Valley, Lack Pond 152 Comment
  UC1223424  Lotus pinnatus Joseph P. Tracy 1942-6-15 17134 Humboldt Englewood Prairie Comment
  SEINET3694253 Image available Lotus purshianus Joseph P. Tracy 1937-8-12 15628 Humboldt Bald Mountain: Border of Lake Prairie Bog, 3 miles S of Murphy Meadows 1067 Comment
  JEPS55767  Lotus purshianus var. purshianus Mrs. M. H. Manning 1900-1 Humboldt Hupa Valley Comment
  JEPS55790  Lotus purshianus var. purshianus Joseph P. Tracy 1923-6-17 6271 Humboldt Big Lagoon Northern Coast Region 6 Comment
  RSA32848  Lotus unifoliolatus A. A. Heller 1923-7-9 13778 Humboldt Near Blue Lake, 5 miles from Arcata. Comment
  HSC98269  Lotus unifoliolatus var. unifoliolatus D. E. Anderson 1962-7-14 2256 Humboldt About 3 mi. E of Kneeland Comment
  CAS-BOT-BC342557  Luina hypoleuca Joseph P. Tracy 1917-9-2 4839 Humboldt Northern Coast Ranges. Grouse Mountain 1524 Comment
  SBBG52995  Lupinus J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka Comment
  CAS-BOT-BC198268  Lupinus Wm. Bridge Cooke 1946-6-11 17370 Humboldt Roadside 1 mi. N of Eureka Comment
  CAS-BOT-BC201189  Lupinus Volney Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  UC502997  Lupinus albicaulis var. shastensis Joseph P. Tracy 1932-7-15 10586 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit, e of Corral Prairie 1828 Comment
  UC48706  Lupinus albicaulis var. shastensis Hilda W. Grinnell 1932-7-22 39 Humboldt on slope below U.S.G.S. signal rock, South Fork Mountain (ne slope of South Fork Mountain); ne slope of South Fork Mt. 1767 Comment
  UC1223271  Lupinus albifrons Joseph P. Tracy 1939-5-14 16289 Humboldt opposite Buck Mountain (near Dinsmore's); Van Duzen River, near Dinsmore's 762 Comment
  UC146921  Lupinus albifrons var. albifrons Harley P. Chandler June, 1901 1424 Humboldt Weitchpek North Coast Ranges, Klamath River (Klamath River) 304 Comment
  CHSC97960  Lupinus albifrons var. collinus Sara March; Gillian Levy 2005-6-24 14 Humboldt South of Grouse Mtn. on NF1. 1375 Comment
  HSC32313  Lupinus albifrons var. flumineus D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5659 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  UC1129355  Lupinus arboreus H. L. Person 1931-7-30 Humboldt Fieldbrook; Eureka Quadrangle Comment
  UC503006  Lupinus arboreus Joseph P. Tracy 1932-5-16 10104 Humboldt near Samoa (on Humboldt Bay); Northern Coast Region, on Humboldt Bay 6 Comment
  UCD106589  Lupinus arboreus Linda M. Barker 1976-5-13 1472 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  UCD106590  Lupinus arboreus Linda M. Barker 1976-5-13 1474 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. 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
  UC205453  Lupinus bicolor Joseph P. Tracy 1919-5-31 5149 Humboldt along Willow Creek ((tributary of Trinity River) near its mouth); Northern Coast Ranges, trib Trinity River, Willow Creek 152 Comment
  HSC101035  Lupinus elmeri A. Thoele, Sydney Carothers 1995-7-14 57 Humboldt Six Rivers National Forest; .6 mi. south of intersection of Forest Route 1 & Rd. 3N06, on the edge of Route 1. 1720 Comment
  UC169334  Lupinus latifolius var. latifolius Joseph P. Tracy 1912-7-26 3863 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UC15962  Lupinus lepidus var. sellulus Harley P. Chandler Jun 1901 1498 Humboldt Klamath River Comment
  HSC40961  Lupinus littoralis Linda M. Barker 1976-5-13 1495 Humboldt Lanphere-Christensen Dunes; 3 mi. W of Arcata Comment
  SD53194  Lupinus littoralis Darley F. Howe 1962-5-22 3259 Humboldt 0.5 mile north of Orick on Highway 101. 29 Comment
  RSA87026  Lupinus luteolus F. W. Peirson 1926-7-13 7057 Humboldt Near Blue Lake, Mad River Comment
  UCD108608  Lupinus luteolus R. Tofsrud 1951-1 s.n. Humboldt Exact location unknown. Comment
  UC774984  Lupinus polyphyllus var. polyphyllus Carl B. Wolf 1937-8-11 9144 Humboldt 1/2 mi e Alton; e of Alton 21 Comment
  CDA5442  Lupinus rivularis D. G. Kelch 2007-7-25 7 .503 Humboldt Along Hwy 299 between Lord-Ellis Summit and Hwy 96. Comment
  HSC79442  Lupinus rivularis Kenneth Clark 1980-3-27 556 Humboldt On access trail to Dead Man's Gulch, Shelter Cove. 91 Comment
  SEINET12154707  Lupinus sellulus J. P. Tracy 1933-1 12350 Humboldt Gasquet 91 Comment
  HSC58042  Lupinus tracyi Gilbert Muth 1979-8-1 11890 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  HSC14059  Luzula comosa R. I. Bonn 1965-5-7 31 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC73161  Luzula comosa M. A. Baker 1980-6-7 1802 Humboldt Near Brush Mtn. 1128 Comment
  RSA168863  Luzula comosa Joseph P. Tracy 1928-6-17 8449 Humboldt Serpentine soil near Ruby Creek, Willow Creek Canyon, along Trinity Highway. Comment
  UC1152129  Luzula comosa Joseph P. Tracy 1930-7-23 9128 Humboldt at Cold Springs (Grouse Mountain); , at Cold Springs 1432 Comment
  HSC48994  Luzula multiflora subsp. multiflora M. A. Baker 1979-5-23 754 Humboldt Comment
  UC1103680  Luzula parviflora Joseph P. Tracy 1925-6-7 7056 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 609 Comment
  CHSC115875  Luzula subsessilis Peter F. Zika 2011-7-3 25492 Humboldt Titlow Hll Road, 3 road miles SE of Route 299 at Berry Summit,1 air km SW of Horse Mountain. 1190 Comment
  JEPS371  Lycopodiella inundata Joseph P. Tracy 1928-9-8 8504 Humboldt Big Lagoon Northern Coast Ranges (in peat bog) 6 Comment
  RSA245025  Lycopodiella inundata D. E. Anderson 1963-9-6 2808 Humboldt Big Lagoon Sphagnum Bog Comment
  CAS-BOT-BC61936  Lycopodium clavatum Mrs. L. B. Kildale 1930-11-1 10755 Humboldt one mile north of Crannell, on trail to Camp 20 Comment
  HSC95500  Lycopodium clavatum Gordon Leppig 2004-2-3 2129 Humboldt Pacific Lumber Co. land, NE edge of THP 1-04-001 HUM. 300 Comment
  JEPS26544  Lycopodium clavatum Don Branscomb July, 1959 Humboldt Trinidad Comment
  RSA20816  Lycopodium clavatum C. B. Wolf 1937-9-10 9314 Humboldt 3.4 miles E of Trindad at hammond Lumver Co. s Camp 20 (abandoned) 152 Comment
  UC1440267  Lycopodium clavatum L. L. Kiefer and D. Branscomb 1964-5-20 1435 Humboldt on Kuntz property 1 mi e Moonstone Beach (near Trinidad) 152 Comment
  UC577349  Lycopus uniflorus H. E. Parks and Joseph P. Tracy 1924-8-3 6765 Humboldt Big Lagoon 6 Comment
  JEPS432  Lysichiton americanus W. L. Jepson 1936-8-17 17916 Humboldt 2 mi. s. Field's Landing (near Still's ranch) Comment
  UCD138085  Lysichiton americanus Malcolm A. Nobs; S. Galen Smith 1949-8-3 1183 Humboldt Southern outskirts of Eureka. Comment
  SEINET11770339  Lysichiton americanus F. H. Utech 1986-1 86 -416 Humboldt between Capetown & Ferndale along Mattole Creek, SW slope of Bear River Ridge 100 Comment
  HSC12034  Lythrum hyssopifolia D. Santana 1970-10-28 82 Humboldt 3 mi. S of Trindad. Comment
  CAS-BOT-BC334475  Madia Robert F. Thorne; P. Everett 1965-8-7 35216 b Humboldt Samoa Peninsula, elev near sea level. 0 Comment
  SEINET11810577  Madia elegans J. P. Tracy 1947-1 17827 Humboldt Horse Mountain 1067 Comment
  UC129391  Madia exigua Joseph Burtt Davy and Walter C. Blasdale 1899-6-11 5466 Humboldt near Elk Prairie Comment
  CAS-BOT-BC343029  Madia gracilis David D. Keck 1944-7-11 5500 Humboldt 12.3 mi. S.E. of Petrolia; halfway between upper Mattole and Honeydew, Mattole River 121 Comment
  HSC44130  Madia gracilis Thomas W. Nelson, Jane P. Nelson 1977-7-4 3607 Humboldt Along road N from Alder Spring 1555 Comment
  UC176473  Madia gracilis Joseph P. Tracy 1913-6-22 4257 Humboldt opposite Buck Mountain (in Van Duzen River Valley, Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  JEPS40333  Madia gracilis Lincoln Constance 1934-5-24 625 Humboldt s slope Lower Look Prairie; South Fork Eel River, Bull Creek Region 121 Comment
  UC165211  Madia gracilis J. P. Tracy 1909-9-12 2085 Humboldt near Buhne's Point; Eureka 0 Comment
  UC175195  Madia gracilis Joseph P. Tracy 1913-6-22 4258 Humboldt Dinsmore's Ranch; Valley of Van Duzen River, Buck Mountain 762 Comment
  UC15043  Maianthemum dilatatum J. P. Tracy 1901-5-5 1064 Humboldt immediate vicinity Eureka 0 Comment
  HSC15593  Maianthemum dilatatum S. R. Johnson 1965-4-30 48 Humboldt 2 mi. N of Luffenholtz Beach Comment
  POM87668  Maianthemum dilatatum Le Roy Abrams, Rimo C. Bacigalupi 8300 Humboldt Near northern county line Comment
  RSA24336  Maianthemum dilatatum Carl B. Wolf 1941-2-25 9959 Humboldt South side of Freshwater Lagoon 61 Comment
  RSA41939  Maianthemum dilatatum H. C. Cantelow 1935-5-30 s.n. Humboldt 8 miles north of Orick Comment
  SEINET3992237  Maianthemum dilatatum C. O. Baker 1962-5-7 Humboldt 2 miles south of Trinidad along Hwy 101. Comment
  UCD139077  Maianthemum racemosum T. E. Weier 1942-5-22 s.n. Humboldt near Dyerville, Highway 101. Comment
  HSC15888  Maianthemum racemosum subsp. amplexicaule A. E. Inman 1962-5-25 Humboldt S bank of Mad River, S of Azalea Hill Rd. Comment
  HSC41341  Maianthemum racemosum subsp. amplexicaule Brad Klipfel 1974-9-7 559 Humboldt Horse Mtn., E fork of Willow Creek. Comment
  HSC42005  Maianthemum racemosum subsp. amplexicaule Tom Duebendorfer 1977-5-15 52 Humboldt 8.9 mi. E on Ward Rd. from junction of Maple Creek Rd. and Old Hwy. 299 610 Comment
  HSC48830  Maianthemum racemosum subsp. amplexicaule Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 40 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  CAS-BOT-BC140137  Malus fusca W. R. Dudley 1899-1-1 s.n. Humboldt Arcata 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
  UC14229  Malus fusca Chesnut and Drew 1888-8-10 Humboldt Arcata Comment
  UC990711  Marah oregana Roxana S. Ferris 1951-9-5 12448 Humboldt Trinidad Head Comment
  RSA239725  Marah oregana Larry E. DeBuhr, Gary D. Wallace 1973-5-19 1116 Humboldt Prairie Creek Redwood State Park; along Gold Bluff Beach. Comment
  RSA441241  Marah oregana Christopher Davidson 1973-5-29 2206 Humboldt 2 miles S of Carlotta on Hwy 36 61 Comment
  UCSB15707  Marah oregana Breedlove, Dennis 1961-7-4 Humboldt North bank of the Mad River, 1 mile east of Blue Lake on U.S. Highway 299 243 Comment
  UC303179  Medicago arabica Joseph P. Tracy 1925-5-31 7051 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  HSC15527  Medicago polymorpha J. Lackey 1971-3-28 10 Humboldt 3 mi. S of Cape Mendocino on Capetown Rd. Comment
  CAS-BOT-BC269350  Melica californica Joseph P. Tracy 1921-5-30 5491 Humboldt Northern Coast Ranges. Kneeland Prairie 762 Comment
  UC1145125  Melica geyeri Joseph P. Tracy 1942-6-2 17099 Humboldt 2 mi n Bridgeville 609 Comment
  HSC102229  Melica geyeri var. geyeri M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1150 Humboldt Patterson Meadows 1566 Comment
  HSC71167  Melica harfordii Thomas W. Nelson 1977-5-30 3413 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  HSC99070  Melica harfordii Cara Witte 2007-7-12 521 Humboldt Along Forest Service Road 5N10. 1.25 miles south of intersection with 5N41. 1283 Comment
  JEPS71244  Melica harfordii W. L. Jepson 1936-8-8 17860 Humboldt Richardson Grove; South Fork Eel River Comment
  CAS-BOT-BC262469  Melica subulata Henry M. Pollard 1946-9-2 s.n. Humboldt Orleans Mt. 1524 Comment
  CAS-BOT-BC262470  Melica subulata Joseph P. Tracy 1935-4-14 13778 Humboldt Miranda. Along South Fork of Eel River 121 Comment
  CAS-BOT-BC262472  Melica subulata Joseph P. Tracy 1935-7-25 14224 Humboldt Trinity Summit. Near Corral Prairie 1584 Comment
  CAS-BOT-BC264164  Melica subulata Joseph P. Tracy 1933-7-26 12910 Humboldt Grouse Mountain 1524 Comment
  UC1152008  Melica subulata A. H. Murphy 1951-5-15 30 Humboldt 0.5 mi s South Fork of McCann Road Comment
  UC526917  Melica subulata Joseph P. Tracy 1933-7-26 12910 Humboldt Grouse Mountain; North Coast Ranges 1524 Comment
  UC552705  Melica subulata Joseph P. Tracy 1935-7-25 14224 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  HSC10365  Melica subulata D. C. Juve 1964-5-16 53 Humboldt Rousseau Ranch near Kneeland. Comment
  HSC15521  Melilotus indicus M. J. Athey 1970-10-12 11 Humboldt Along the old road to Trinidad Comment
  OBI13658  Mentha aquatica Joseph P. Tracy 1947-11-9 17945 Humboldt Ferndale 9 Comment
  SEINET13946829 Image available Mentha arvensis Henry M. Pollard 1945-1 Humboldt Pond near Harley place, Orleans Comment
  JEPS63451  Mentha pulegium W. L. Jepson 1936-8-11 17872 Humboldt South Fork Eel River Philipsville; , Philipsville Comment
  UC1198475  Mentzelia dispersa Joseph P. Tracy 1937-6-27 15384 Humboldt between Grouse Mt.and South Fork of Trinity River; Friday Ridge 1219 Comment
  SEINET200817  Mentzelia laevicaulis Frank C. Gregory 1916-8-20 Humboldt Carlotta, Comment
  UC34932  Mentzelia laevicaulis var. laevicaulis Hy Am-Pum 1888-7-25 Humboldt Comment
  HSC37417  Menziesia ferruginea Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 516 Humboldt Along Lost Man Creek. 38 Comment
  SEINET7270591  Menziesia ferruginea W. Roderick 1967-7-22 s.n. Humboldt 0.5 mi S of Humboldt, along old Hwy. 101 152 Comment
  UC1934548  Menziesia ferruginea subsp. ferruginea T. C. Wells & W. J. Crins 1986-7-29 636 Humboldt Redwood National Park, on Hwy. 101 pullout neat mile 130.74 marker 30 Comment
  UC427865  Micropus californicus var. californicus H. E. Parks 1930-5-25 872 Humboldt ridges above Laribee Valley Comment
  CAS-BOT-BC322621  Microseris Milo S. Baker 1927-8-21 2488 a Humboldt Near Baldt Mt. 914 Comment
  JEPS5825  Microseris borealis Joseph P. Tracy 1936-6-28 15027 Humboldt Lake Prairie Bald Mountain (in bog) 1066 Comment
  CAS-BOT-BC348835  Microseris douglasii subsp. douglasii K. L. Chambers 1969-5-25 2923 Humboldt On road to Harris 5.2 mi. E of the freeway overpass at Garberville Comment
  UC1239522  Microseris douglasii subsp. douglasii Joseph P. Tracy 1938-6-9 15887 Humboldt 3 mi w Harris 914 Comment
  CAS-BOT-BC349240  Microseris nutans Joseph P. Tracy 1930-7-16 8900 Humboldt South Fork Mountain. Near McKay Camp 1676 Comment
  UC302189  Microseris nutans Joseph P. Tracy 1926-6-20 7620 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  UC34653  Microseris nutans Chesnut and Drew 1888-7-21 Humboldt w slope South Fork Mt. Comment
  UC147924  Mimulus arvensis Joseph P. Tracy 1909-6-20 3000 Humboldt Freshwater Creek Northern Coast Region, Humboldt Bay region 0 Comment
  HSC20682  Mimulus aurantiacus var. aurantiacus H. E. Parks, S. T. Parks Jun 1951 Humboldt Trinidad; along bay shore near landing Comment
  UC1011928  Mimulus aurantiacus var. aurantiacus Francis W. Pennell 1940-7-8 26109 Humboldt above beach s Trinidad; Route 101 30 Comment
  HSC102505  Mimulus breweri M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1490 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC56069  Mimulus breweri G. L. Clifton, Griswold 1979-7-31 11735 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  HSC75454  Mimulus breweri J. O. Sawyer 1980-7-18 3591 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  JEPS10553  Mimulus breweri Joseph P. Tracy 1932-7-10 10375 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC418983  Mimulus dentatus H. E. Parks May 1930 Humboldt above Carlotta; Van Duzen River Comment
  BLMAR73  Mimulus guttatus Jennifer Anthony-Wheeler 1994-5-25 73 Humboldt King range, growing along lighthse rd 1/4 mi from Mattole beach 6 Comment
  HSC71741  Mimulus guttatus M. A. Baker 1980-6-26 2421 Humboldt Near Sims Creek 610 Comment
  RSA249331  Mimulus guttatus D. E. Anderson, Thomas W. Nelson, S Dowty 1972-6-13 5563 Humboldt Westward lower slopes of Black Lassic near Trinity County line. 1585 Comment
  HSC102538  Mimulus moschatus M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1524 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  HSC32564  Mimulus moschatus Thomas W. Nelson 1973-9-3 1119 Humboldt McKeown Ranch N of Dinsmore Comment
  JEPS10598  Mimulus pilosus W. L. Jepson 1936-8-17 17937 Humboldt near Arcata; Mad River Comment
  CAS-BOT-BC388627  Minuartia douglasii Joseph P. Tracy 1930-6-21 8783 Humboldt Larrabee Valley 731 Comment
  CDA21079  Minuartia douglasii G. F. Hrusa 1993-6-17 11221 Humboldt Red Mountain; Summit of road cut at entrance gate to Red Mtn. Comment
  UC668121  Minuartia douglasii Joseph P. Tracy 1935-6-23 13972 Humboldt French Camp Ridge 1066 Comment
  HSC67195  Minuartia nuttallii subsp. gregaria Thomas W. Nelson, James Nelson 1980-6-10 5420 Humboldt Along road to Red Mtn., 0.5 mi. W of junction with Swayback Ridge Rd. 1372 Comment
  JEPS43803  Mitella ovalis Lincoln Constance 1934-6-15 892 Humboldt Grasshopper Peak South Fork Eel River, Bull Creek Region (summit) 975 Comment
  HSC73710  Moehringia macrophylla M. A. Baker 1980-7-15 2979 Humboldt Near Whiting Ridge 301 Comment
  UCD98355  Moehringia macrophylla D. C. Hagar 1957-5-16 94 Humboldt Happy Camp Mountain, 7.5 miles southeast of Willow Creek and 5.25 milse northeast of Salyer. 1219 Comment
  CAS-BOT-BC215566  Monardella odoratissima subsp. pallida Joseph P. Tracy 1926-6-20 7657 Humboldt Horse Mountain 1310 Comment
  HSC57122  Monardella odoratissima subsp. pallida Walter Overton, Marvin Butler 1979-7-25 9870 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  UC1225847  Monardella villosa subsp. villosa Joseph P. Tracy 1946-7-21 17619 Humboldt Blue Slide Van Duzen River 91 Comment
  RSA255779  Monotropa uniflora Gary D. Wallace 1973-7-11 1251 Humboldt Eastern part of Prairie C reek Redwoods St. Pk. 427 Comment
  UC275480  Montia fontana Joseph P. Tracy 1925-3-15 6941 Humboldt Blue slide on Van Duzen River Van Duzen River; Northern Coast Ranges, Blue slide, Van Duzen River 91 Comment
  HSC93840  Montia howellii Claire Golec, Shawn Magnuson 1999-5-12 Humboldt Pacific Lumber Co. land, W side of Van Duzen River, 10 mi. W of Bridgeville 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
  UC673007  Montia howellii Joseph P. Tracy 1933-6-7 12526 Humboldt Bridgeville 198 Comment
  HSC69868  Montia linearis Thomas W. Nelson 1978-5-28 4097 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  HSC64307  Montia parvifolia Steve Selva 1973-5-26 6851 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC162971  Montia parvifolia Joseph P. Tracy 1911-6-4 3226 Humboldt 5 mi from The Coast (along Little River); Northern Coast Region, Little River 121 Comment
  CAS-BOT-BC445161  Montia parvifolia Henry M. Pollard 1948-7-24 s.n. Humboldt Along road near Orleans Comment
  HSC16102  Morella californica H. E. Parks Mar 1934 4833 Humboldt Spruce Cove, Trinidad Comment
  RSA10148  Muhlenbergia filiformis Joseph P. Tracy 1932-7-14 10544 Humboldt Klamath Mountains; Trinity Summit. Wet Meadow at Corral Prairie 0 Comment
  UCD86804  Muhlenbergia mexicana Joseph P. Tracy 1918-9-29 5115 Humboldt South Fork of Eel River, 4 miles above the mouth. 60 Comment
  UCR179282  Myosotis latifolia R. G. Swinney 1968-3-29 239 Humboldt East of Humboldt State College, Arcata 152 Comment
  HSC57707  Myriophyllum sibiricum G. L. Clifton, Terry Griswold 1979-7-25 10959 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  HSC12027  Nasturtium officinale D. Santana 1970-11-2 106 Humboldt E side of old Hwy. 1 in ditch Comment
  HSC6872  Nasturtium officinale D. E. Anderson 1962-3-24 1947 Humboldt Along Turner Rd. Comment
  SEINET202730  Navarretia pubescens Joseph P. Tracy 1950-6-23 18861 Humboldt Dobbyn Creek, 3 miles NE of Alderpoint. 213 Comment
  UC1198520  Navarretia pubescens Joseph P. Tracy 1914-5-14 4456 Humboldt Fort Seward Northern Coast Ranges 121 Comment
  UC1198528  Navarretia squarrosa Joseph P. Tracy 1927-7-24 8293 Humboldt Upper Mattole 152 Comment
  UC133643  Navarretia squarrosa J. P. Tracy 1909-7-18 3019 Humboldt Ocean Beach at Samoa Samoa Comment
  UC203962  Navarretia viscidula Joseph P. Tracy 1918-7-5 5036 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  HSC13570  Nemophila heterophylla Doris K. Kildale 1926-4-25 1802 Humboldt Willow Creek Flat 152 Comment
  UC1005677  Nemophila menziesii Frank W. Gould 1939-5-30 835 Humboldt about 25 mi due e Eureka (near top Horse Mountain, near ski-hut); near top Horse Mountain, e of Eureka 1100 Comment
  RSA33408  Nemophila menziesii var. atomaria Doris K. Kildale 1929-2-19 4265 Humboldt Little River. Comment
  UC1239754  Nemophila menziesii var. atomaria Joseph P. Tracy 1927-4-23 7910 Humboldt Trinidad Trinidad (on coast bluffs) 3 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
  HSC71171  Nemophila parviflora Thomas W. Nelson 1977-5-30 3416 Humboldt Base of Eight Mile Ridge upstream from Anderson's Ford. 701 Comment
  JEPS2982  Nemophila parviflora Joseph P. Tracy 1932-7-13 10492 Humboldt near Corral Prairie (Trinity Summit); , near Corral Prairie 1584 Comment
  HSC100498  Nemophila parviflora Carl C. Marshall Mar 1886 146 Humboldt About Arcata. Comment
  HSC79523  Nemophila parviflora Kenneth Clark 1980-3-23 533 Humboldt Along S Fork of Dead Man's Gulch 61 Comment
  UC562594  Nemophila pedunculata Joseph P. Tracy 1927-4-2 7873 Humboldt facing South Fork Eel River (Phillipsville); Northern Coast Ranges, , South Fork Eel River 121 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
  UC562590  Nemophila pedunculata Joseph P. Tracy 1927-3-27 7858 Humboldt near South Fork (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 182 Comment
  UC162684  Nicotiana quadrivalvis Joseph P. Tracy 1911-7-10 3500 Humboldt near Mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  POM266040  Noccaea fendleri subsp. glauca Lincoln Constance, Reed C. Rollins 1942-5-11 2877 Humboldt Hoopa Valley, 5 miles south of Hoopa. 122 Comment
  HSC22510  Notholithocarpus densiflorus var. densiflorus D. E. Anderson 1963-9-1 2805 Humboldt Near Kneeland 732 Comment
  HSC41314  Notholithocarpus densiflorus var. echinoides Brad Klipfel 1974-9-2 541 Humboldt Horse Mountain Comment
  HSC48063  Nuttallanthus texanus Thomas W. Nelson 1978-4-23 3885 Humboldt N of Samoa Comment
  HSC104317  Oemleria cerasiformis Richard Spjut 2008-6-14 16347 Humboldt North Coast Ranges; Old highway along west side of Hwy. 101 between Loleta and Fortuna 25 Comment
  RSA183592  Oemleria cerasiformis D. E. Anderson 1965-4-24 3536 Humboldt Along Titlow Hill Road, about 2 miles from its junction with Highway 299. Comment
  UC183607  Oemleria cerasiformis Joseph P. Tracy 1913-6-13 4096 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1222755  Oenanthe sarmentosa Joseph P. Tracy 1950-9-2 19348 Humboldt 2 mi. s. of town Field's Landing (edges of foothills) 6 Comment
  HSC96500  Oenanthe sarmentosa Gordon Leppig 1998-8-23 1075 Humboldt Big Lagoon County Park, Big Lagoon Bog 3 Comment
  POM224763  Oenothera glazioviana P. A. Munz 1936-8-10 14335 Humboldt At edge of Rio Del. Comment
  CDA38173  Oenothera villosa subsp. strigosa E. C. Whitney 1968-6-26 s.n. Humboldt 1440 Carson Woods Road. 0 Comment
  HSC95443  Oenothera wolfii D. K. Imper 1986-9-1 Humboldt S of Trinidad, Hwy. 101, across from Clam Beach 5 Comment
  UCR45425  Onychium densum Thomas W. Nelson 1977-6-15 3452 Humboldt North Coast Range, [Horse Mountain] along old road to ski area 1372 Comment
  JEPS10821  Orobanche fasciculata Lincoln Constance 1934-5-29 741 Humboldt Bull Creek Region. South Fork Eel River. Upper Look Prairie, just above Lookout Point. Comment
  UC1245410  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1935-7-28 814 Humboldt Head of Devil's Hole, Trinity Summit. Comment
  CAS-BOT-BC500261  Orobanche uniflora subsp. occidentalis Doris K. Kildale 1927-5-20 3216 Humboldt Bug Creek 792 Comment
  HSC54894  Orthilia secunda G. L. Clifton, Griswold 1979-7-25 10935 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  CAS-BOT-BC458028  Orthilia secunda Doris K. Kildale 1925-8-16 1155 Humboldt Trinity Summit Trail near forks of Tish-Tang-i-tang Comment
  CAS-BOT-BC458030  Orthilia secunda Joseph P. Tracy 1932-7-20 10737 Humboldt Trinity Summit, near Corral Prairie 1584 Comment
  HSC104436  Orthilia secunda Bianca Hayashi 2013-6-18 Humboldt Northwest of Snow Camp Mountain Comment
  UC1245385  Orthocarpus imbricatus Joseph T. Gregory 1935-7-23 701 Humboldt open places at Corral Prairie (Trinity Summit); , open places at Corral Prairie 1584 Comment
  JEPS15910  Osmorhiza berteroi W. L. Jepson 1932-7-26 16419 Humboldt Bull Creek Comment
  UC1197133  Osmorhiza berteroi Joseph P. Tracy Jul 27 1908-Jul 30 1908 2738 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC48758  Osmorhiza berteroi Brad Klipfel 1973-6-16 70 Humboldt Along ridge trail SE of N Trinity Mountain 1829 Comment
  HSC71714  Osmorhiza purpurea M. A. Baker 1980-6-26 2435 Humboldt Near Sims Creek 610 Comment
  UC1103422  Oxalis albicans subsp. pilosa J. P. Tracy 1901-6-16 1149 Humboldt back of Bucksport 0 Comment
  CHSC70834  Oxalis incarnata Vernon Oswald 1998-4-16 8918 Humboldt Samoa Dunes Recreation Area at the south tip of the North Spit of Humboldt Bay. Along the road leading into the recreation area. 6 Comment
  HSC16727  Oxalis oregana Francis Winter 1960-5-7 Humboldt Pine Ridge Summit 686 Comment
  SEINET3347162 Image available Oxalis trilliifolia A. A. Heller 13787 Humboldt Humbolt Camp, between Scotia and Pepperwood Comment
  UC91426  Packera bolanderi var. bolanderi W. W. Price Humboldt Mad River Comment
  UC526843  Panicum oligosanthes var. scribnerianum Joseph P. Tracy 1931-5-17 9428 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UCD89768  Panicum oligosanthes var. scribnerianum Joseph P. Tracy 1939-4-29 16246 Humboldt Klamath River, near Slate Creek. 8 miles below Orleans. 121 Comment
  CDA6383  Parentucellia viscosa Mills Jul 1948 Humboldt 0 Comment
  BLMAR697  Paxistima myrsinites Jennifer Wheeler 2011-5-24 697 Humboldt Lacks Creek, Pine Ridge/Stormy saddle road junction 975 Comment
  UC1239629  Pectocarya pusilla Joseph P. Tracy 1926-5-2 7428 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC76045  Pedicularis racemosa Walter Overton, Marvin Butler 1979-8-2 12563 Humboldt Near Bret Hole, close to the town of Hoopa. 1554 Comment
  UC582554  Pedicularis racemosa Joseph P. Tracy 1930-7-16 8917 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC102049  Penstemon anguineus M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 953 Humboldt Along trail from Rustic Camp to Patterson Meadows 1534 Comment
  HSC44531  Penstemon anguineus Brad Klipfel 1973-7-1 139 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  BLMAR273  Penstemon anguineus Jennifer Anthony-Wheeler 1999-7-30 273 Humboldt Lacks Creek, occuring in open, logged area of coniferous forests 1219 Comment
  SD42331  Penstemon azureus Carl B. Wolf 1937-8-13 9220 Humboldt North Coast Range, 8 mi. E. of Hoopa Valley on new road towards Trinity Summit 1219 Comment
  UC354474  Penstemon azureus var. angustissimus P. E. Goddard 1906-6 666 Humboldt Lasseck Pk. Comment
  RSA309621  Penstemon deustus Walter Wisura 1983-9-3 3931 Humboldt About 6 mi N of Weitchpec, along Klamath River. Comment
  UC169083  Penstemon deustus Harley P. Chandler June, 1901 1459 Humboldt Bluff Creek North Coast Ranges, , Bluff Creek (Klamath River) 426 Comment
  UC1238913  Penstemon heterophyllus Freed W. Hoffman 1946-5-20 1011 Humboldt Mattole River near Petrolia; North Coast Ranges, Mattole River nr Petrolia Comment
  HSC97604  Penstemon laetus subsp. sagittatus Cara Witte 2007-5-29 141 Humboldt Along National Forest 1 near Kinsey Ridge. 1/2 mile south of cattle guard. 1369 Comment
  UC41715  Penstemon laetus var. sagittatus Chesnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  UC585631  Penstemon laetus var. sagittatus Joseph P. Tracy 1937-7-2 15395 B Humboldt on ridge 2 mi e Grove's Prairie; Trinity summit, e of Grove's Prairie 1524 Comment
  HSC55991  Penstemon procerus var. brachyanthus Walter Overton, Marvin Butler 1979-7-31 11417 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC81903  Penstemon procerus var. brachyanthus Thomas W. Nelson 1979-7-11 4995 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  JEPS26255  Penstemon rattanii Arthur E. Connick 1925-6-1 Humboldt hills near Stone Lagoon; hills near Stone Lagoon 60 Comment
  SD129743  Penstemon rattanii var. rattanii Harold E. Parks June 1951 Humboldt Kneeland, Camaron Hill Comment
  RSA0066316  Pentagramma triangularis Lyman Benson 1928-7-12 472 Humboldt Weott Ranger Station. Seaward N Coast Range, S Fork Eel River watershed. 61 Comment
  HSC99556  Perideridia gairdneri subsp. borealis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 221 Humboldt Near North Trinity Mtn, 11. 5 mi E of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC642256  Perideridia howellii Joseph P. Tracy 1937-8-7 15615 Humboldt 1 mi n Murphy Meadow; Bald Mt. 914 Comment
  SEINET13978219 Image available Petasites frigidus var. palmatus R. R. Halse 2016-1 9684 Humboldt Along US Hwy 101 ca. 9.6 mi S of Orick. 8 Comment
  UC1199487  Petasites frigidus var. palmatus Joseph P. Tracy 1936-2-28 14770 Humboldt Trinidad 3 Comment
  HSC32486  Petrorhagia dubia Bonnie Prange 1974-5-18 Humboldt Off Hwy. 299 at China Slide. Comment
  UC56715  Phacelia bolanderi Harley P. Chandler May 1901 1088 Humboldt Idlewild North Coast Ranges 91 Comment
  HSC23998  Phacelia bolanderi Tim Baroni 1971-6-25 44 Humboldt Comment
  SEINET3119233 Image available Phacelia bolanderi Bassett Maguire, Ruth Maguire, C. B. Maguire 1934-6-8 15225 Humboldt Bolling Grove State Park. Comment
  HSC103089  Phacelia corymbosa Sydney Carothers 2014-6-22 4 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  RSA275310  Phacelia corymbosa Thomas W. Nelson, Jane P. Nelson 1977-7-4 3576 Humboldt At head of North Fork of Conley creek. 1463 Comment
  UC175732  Phacelia egena Joseph P. Tracy 1913-6-13 4112 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  HSC13667  Phacelia heterophylla subsp. virgata D. E. Anderson 1962-5-1 2198 Humboldt 1 mi. W of Hoopa Comment
  HSC75450  Phacelia mutabilis J. O. Sawyer 1980-7-18 3587 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  RSA170268  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1949-7-7 18333 Humboldt Table Bluff. 91 Comment
  RSA30622  Phacelia nemoralis subsp. oregonensis Lincoln Constance, R. C. Rollins 1942-5-11 2872 Humboldt Hoopa Valley 6 miles S of Hoopa. 122 Comment
  UC1222902  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1950-6-8 18737 Humboldt ridge summit near Mountain Glen Ranch (7 mi s of Ferndale); Bear River Ridge 609 Comment
  UC552718  Phalaris arundinacea Joseph P. Tracy 1935-6-8 13950 Humboldt along coast in front of South End Stone Lagoon (Dry Lagoon); in front of South End Stone Lagoon, Dry Lagoon 3 Comment
  SEINET200963 Image available Phalaris californica J. P. Tracy 1934-6-21 13241 Humboldt Along hwy across Salmon Creek flats, around Humboldt Bay; N Coast Ranges. 6 Comment
  UC1152048  Phalaris minor Joseph P. Tracy 1951-6-21 19519 Humboldt Hydesville Comment
  HSC48325  Philadelphus californicus Maralyn O'Meara 1974-7-17 549 Humboldt Along Kneeland rd. across from Kneeland Post Office Comment
  UC1222381  Philadelphus lewisii Joseph P. Tracy 1950-6-18 18853 Humboldt 2 mi w Briceland; Redwood Creek Comment
  HSC24107  Phlox adsurgens J. O. Sawyer 1970-6-27 2305 Humboldt Site 318. 1494 Comment
  HSC35709  Phlox adsurgens Thomas W. Nelson, B. Reinhardt 1975-7-30 2092 Humboldt Grouse Creek side of Last Chance Ridge. Comment
  HSC65479  Phlox adsurgens M. A. Baker 1980-6-7 1806 Humboldt Near Brush Mtn. 1128 Comment
  HSC70653  Phlox adsurgens Gail Newton 1980-7-14 1528 Humboldt Near Deadman Ridge 1097 Comment
  JEPS69961  Phlox diffusa Joseph P. Tracy 1933-7-11 12657 Humboldt Horse Mountain 1432 Comment
  UC1198130  Phoradendron villosum Joseph P. Tracy 1949-12-3 18599 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  CHSC2362  Phyllospadix scouleri M. Anthony 1960-5-14 Humboldt Near Arcata. Comment
  RSA13440  Phyllospadix torreyi H. E. Parks 1933-11-12 s.n. Humboldt Spruce Cove, Trinidad. Comment
  HSC35934  Physocarpus capitatus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2027 Humboldt French Camp, Bald Hills. Comment
  SD42286  Pinus attenuata Carl B. Wolf 1937-8-13 Humboldt North Coast Range, 8 miles east of Hoop Valley on new road towards Trinity Summit 1220 Comment
  HSC74337  Pinus lambertiana M. A. Baker 1980-5-18 1280 Humboldt Near Black Mtn. 1006 Comment
  HSC54525  Pinus monticola Overton, Butler 1979-7-23 9459 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  UC650336  Pinus monticola Charles H. Bunting 1940-8-12 56 Humboldt n of, n slope of Bee Mountain Weitchpec; Bee Mountain 1082 Comment
  UC55658  Pinus ponderosa P. E. Goddard 1901-7-12 67 Humboldt Hupa Comment
  HSC99047  Pinus ponderosa var. ponderosa Cara Witte 2008-6-13 725 Humboldt Forest Service Road 4N32. 1 mile south of intersection with Forest Service Road 4N32E. 1455 Comment
  UC13527  Piperia elegans Chesnut and Drew 1888-7-10 Humboldt Jarnnigan's Jarnigan's Comment
  CAS-BOT-BC136587  Piperia michaelii L. B. Kildale 1930-8-3 10495 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  UC1225874  Piperia unalascensis Joseph P. Tracy 1947-7-9 17848 Humboldt Horse Mountain 1432 Comment
  UC1196411  Piperia unalascensis Joseph P. Tracy 1913-6-26 4346 Humboldt opposite Buck Mountain ( Dinesmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC48732  Pityopus californicus J. Pageau, T. Jimerson, E. Toth 1979-6-13 520 Humboldt Timber sale unit 7. Bulk Collection 182 549 Comment
  JEPS14836  Pityopus californicus Virginia P. Fox 1919-7-13 Humboldt Bald Mt. Comment
  JEPS60958  Plagiobothrys bracteatus Joseph P. Tracy 1939-4-29 16232 Humboldt Hoopa Valley 106 Comment
  CAS-BOT-BC228212  Plagiobothrys hispidulus Joseph P. Tracy 1932-7-10 10386 Humboldt Klamath Mountains, Trinity Summit. At Corral Prairie 1524 Comment
  JEPS61027  Plagiobothrys hispidulus Joseph P. Tracy 1932-7-10 10386 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  SBBG28861  Plagiobothrys reticulatus H. E. Parks -Jul-1937 24042 Humboldt Spruce Cove, Trinidad 64 Comment
  UC582615  Plagiobothrys reticulatus Joseph P. Tracy 1937-6-20 15335 Humboldt ten mi up stream from mouth Bear River 152 Comment
  OBI20592  Plagiobothrys reticulatus Joseph P. Tracy 1946-5-30 17541 Humboldt Carlotta. By Old Strong's District School House. 5 mi E of town, and at "Riverside Park" 61 Comment
  JEPS60993  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1907-6-20 2568 Humboldt Eureka Northern Coast Region 0 Comment
  UC54756  Plagiobothrys tenellus Harley P. Chandler May, 1901 1255 Humboldt Redwood Belt/Region North Coast Ranges 152 Comment
  UC54757  Plagiobothrys tenellus Harley P. Chandler May, 1901 1087 Humboldt Harris 609 Comment
  HSC33750  Plantago erecta A. Montalvo 1975-5-24 282 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  UC1196141  Plantago erecta Joseph P. Tracy 1921-4-24 5471 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  UC585986  Plantago erecta Joseph P. Tracy 1932-5-10 9930 Humboldt Bear River Bridge Northern Coast Ranges 609 Comment
  UCD124527  Plantago major Joseph P. Tracy 1942-7-25 17300 Humboldt Fickle Hill. 6 miles SE of Arcata. 609 Comment
  HSC62906  Plantago maritima J. M. DiTomaso 1979-5-20 1057 Humboldt Above College Cove at Elks Head, 1 mi. N of Trinidad. Comment
  HSC16832  Plantago subnuda Norman H. Moe 1962-5-17 Humboldt Lanphere's Place, next to Mad River Slough Comment
  UC585992  Plantago subnuda Joseph P. Tracy 1927-6-26 8220 Humboldt Stone Lagoon 9 Comment
  HSC55028  Platanthera sparsiflora Overton, Butler 1979-7-31 11452 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC275576  Platanthera sparsiflora Joseph P. Tracy 1923-6-24 6369 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  CAS-BOT-BC91640  Platystemon californicus Doris K. Kildale 1931-5-24 10847 Humboldt Little Laribee [Larabee], Laribee [Larabee] Valley. Comment
  HSC37931  Platystemon californicus Peter Sorensen 1976-6-4 Humboldt N Spit of Humboldt Bay, S of Samoa near airport Comment
  UC229824  Platystemon californicus Joseph P. Tracy 1922-5-29 6071 Humboldt head of South Yager Creek; Northern Coast Ranges, head of South Yager Creek 762 Comment
  BLMAR62  Platystemon californicus Jennifer Anthony-Wheeler 1994-4-6 62 Humboldt Samoa/manilla dunes, growing scattered throughout the dune mat 12 Comment
  HSC16801  Platystemon californicus Francis Winter 1960-4-19 Humboldt Samoa Peninsula, Fairhaven Airport entrance, 12 mi. W of Arcata Comment
  JEPS4804  Plectritis brachystemon Joseph P. Tracy 1936-5-29 14823 1/2 Humboldt French Camp Ridge 1066 Comment
  UC718183  Plectritis brachystemon Carl B. Wolf 1937-6-14 8814 Humboldt North Coast Range, Kneeland Prairie Kneeland Prairie; North Coast Range, Kneeland Prairie 822 Comment
  UC1018910  Plectritis brachystemon S. C. Dyal 1938-6-11 719 a Humboldt 11 mi w of Dinsmore (on McClellan Mountain); McClellan Mountain Comment
  CHSC77469  Plectritis ciliosa subsp. insignis Vernon H. Oswald 2000-4-3 9913 Humboldt Samoa Road at the County Boat Ramp on the North Spit of Humboldt Bay. 4 Comment
  UC1239586  Plectritis congesta Harley P. Chandler May, 1901 1149 B Humboldt North Coast Ranges, Humboldt Bay Humboldt Bay; North Coast Ranges, Humboldt Bay 3 Comment
  UC1239574  Plectritis congesta Joseph P. Tracy 1916-4-30 4680 Humboldt Northern Coast Ranges, around Humboldt Bay, Salmon Creek Valley Salmon Creek Valley; Northern Coast Ranges, Salmon Creek Valley 60 Comment
  HSC97496  Plectritis congesta subsp. brachystemon Cara Witte 2007-5-21 62 Humboldt White Oak Opening. 1257 Comment
  HSC63844  Pleuricospora fimbriolata M. A. Baker 1979-6-29 953 Humboldt 900 Comment
  HSC10612  Pleuropogon refractus L. M. Malloy 1965-5-15 37 Humboldt 2 mi. N of Trinidad on Trinity St. Comment
  UCD90102  Pleuropogon refractus Harley P. Chandler 1901-5-1 1107 Humboldt Humboldt Bay. 15 Comment
  HSC26358  Poa annua T. O. Osborne 1970-6-18 41 Humboldt Green Rock, 1-5/8 mi. N, 3/4 mi. W of Trinidad Lighthouse. Comment
  HSC10662  Poa bulbosa D. E. Anderson 1963-5-18 2446 Humboldt 1.4 mi. W of Berry Summit. Comment
  UC1145111  Poa bulbosa Joseph P. Tracy 1942-6-2 17104 Humboldt Valley of S Yager Creek 762 Comment
  CAS-BOT-BC255119  Poa confinis Joseph P. Tracy 1927-4-24 7947 Humboldt Eureka, near bay shore 9 Comment
  SACT001836  Poa confinis Lyle Bibb 1963-5-11 Humboldt Coastal strand amound sandy beach east or Arcata. Sand spit. Comment
  HSC10706  Poa douglasii R. E. Hafenfeld 1965-5-9 59 Humboldt 1/2 mi. S Ossagon Creek, near Gold Bluff Beach Rd. Comment
  UC1103177  Poa douglasii Joseph P. Tracy 1932-5-10 9943 Humboldt s point of the Cape Cape Mendocino Comment
  SEINET236442 Image available Poa howellii Joseph P. Tracy 1906-6-10 2486 Humboldt Kneeland Prairie. 762 Comment
  CAS-BOT-BC255850  Poa kelloggii Harley P. Chandler 1901-5-1 1183 Humboldt Humboldt Bay 30 Comment
  CAS-BOT-BC255852  Poa kelloggii John Thomas Howell 1954-4-24 29151 Humboldt Bull Creek Flat Comment
  UC1103180  Poa kelloggii Joseph P. Tracy 1918-5-12 4931 Humboldt along old rd. at Eureka; Northern Coast Ranges, Eureka 0 Comment
  SEINET190491 Image available Poa macrantha H. E. Parks 1934-5-1 4805 Humboldt Little River Lagoon Comment
  HSC10759  Poa pratensis D. W. C. 1956-6-20 17 Humboldt May Ranch, Brigdeville. Comment
  HSC39722  Poa pratensis D. E. Anderson, J. P. Smith 1971-6-28 - 1254 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC73570  Poa pratensis Gail Newton 1980-7-14 1507 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC75699  Poa pratensis Bill Copeland 1980-6-26 565 Humboldt Near Snow Camp Lake 1372 Comment
  RSA10072  Poa pratensis Joseph P. Tracy 1926-5-9 7469 .5 Humboldt Valley of south Yager Creek Comment
  HSC102191  Poa secunda subsp. secunda M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1105 Humboldt Andy's Camp 1564 Comment
  HSC98797  Poa secunda subsp. secunda Cara Witte 2008-6-11 712 Humboldt National Forest Road 5N10. 2.5 miles south of intersection with Forest Service Road 5N41. 1303 Comment
  UC34123  Poa secunda subsp. secunda Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5658 Humboldt Hoopa Summit Comment
  CAS-BOT-BC244299  Podagrostis humilis Joseph P. Tracy 1930-7-16 8989 Humboldt South Fork Mountain, at McKay Camp 1676 Comment
  CAS-BOT-BC232889  Polemonium carneum Doris K. Kildale 1926-3-20 1535 Humboldt Big Lagoon Comment
  UC1178965  Polemonium carneum Joseph P. Tracy 1924-5-25 6682 Humboldt Big Lagoon 3 Comment
  UC162581  Polemonium carneum Ethel Tracy 1911-6-18 Humboldt near Big Lagoon; Northern Coast Ranges, near Big Lagoon 30 Comment
  SEINET10778587  Polygala J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13010 Humboldt Leggett; Redwoods River Resort, 75000 Highway 101. Comment
  HSC17226  Polygala californica Paul Shields 1955-6-12 Humboldt 6 mi. W of Myers Flat Comment
  HSC72615  Polygala californica J. P. Smith 1977-7-3 9258 Humboldt Six Rivers National Forest. FS Rd. 13N01, 3 mi. from its junction with Hwy. 36 549 Comment
  HSC17465  Polygonum aviculare Lincoln Constance 1934-6-12 860 Humboldt N bank of S Fork Eel River, Bull Creek Rd. Comment
  UC672973  Polygonum aviculare subsp. depressum Joseph P. Tracy 1940-10-18 16778 Humboldt Trinidad 9 Comment
  UC184021  Polygonum bistortoides Joseph P. Tracy 1913-6-17 4151 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (nw slope of mt.) 1066 Comment
  HSC17487  Polygonum californicum D. E. Anderson 1961-9-3 1776 Humboldt Comment
  JEPS50522  Polygonum convolvulus Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  POM89531  Polygonum douglasii Joseph P. Tracy 1919-9-18 s.n. Humboldt Trinity Summit Comment
  UC1222332  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1950-8-8 19282 Humboldt Croghan Hole Trinity Summit 1676 Comment
  UC672963  Polygonum douglasii subsp. douglasii Joseph P. Tracy 1933-8-30 13042 A Humboldt Grouse Mountain 1524 Comment
  UC672949  Polygonum lapathifolium Joseph P. Tracy 1930-10-12 9204 Humboldt Alton to Fortuna (on gravel bars); Eel River 15 Comment
  UC177188  Polygonum lapathifolium Joseph P. Tracy 1912-10-20 3988 Humboldt in field by Loleta Pond; Northern Coast Ranges, lower Eel River Valley 15 Comment
  HSC54878  Polygonum minimum G. L. Clifton, Griswold 1979-7-25 10873 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  CAS-BOT-BC109178  Polygonum paronychia Doris K. Kildale 1926-6-18 2398 Humboldt Gold Bluffs. Comment
  CHSC55907  Polygonum paronychia L. P. Janeway 1987-7-31 2544 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  HSC17520  Polygonum paronychia R. T. Forester 1963-3-21 31 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  CAS-BOT-BC419824  Polygonum parryi Joseph P. Tracy 1930-7-6 8855 Humboldt Valley of South Yager Creek 762 Comment
  UC672952  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1933-7-25 12868 Humboldt Grouse Mountain 1524 Comment
  HSC17537  Polygonum spergulariiforme Larry Berti 1968-10-20 Humboldt Along the Van Duzen River Comment
  HSC98633  Polygonum spergulariiforme Cara Witte 2008-8-5 983 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1569 Comment
  CAS-BOT-BC421004  Polygonum spergulariiforme Doris K. Kildale 1928-6-24 5296 Humboldt Entrance to Horse Mountain 853 Comment
  HSC33651  Polypodium californicum Margaret Weatherwax 1975-6-26 7 Humboldt Road from Korbel to Maple Creek, 2 mi. SW of Korbel Comment
  UC71485  Polypodium glycyrrhiza Mrs. M. H. Manning 1901-1 Humboldt Hupa Valley Comment
  CAS-BOT-BC76842  Polypodium glycyrrhiza Ira L. Wiggins 1957-6-20 14134 Humboldt Forest, east side of highway, Trinidad. Comment
  UC375480  Polypodium scouleri Harley P. Chandler May, 1901 1137 Humboldt Humboldt Bay; North Coast Ranges 3 Comment
  CAS-BOT-BC72083  Polypodium scouleri Ira L. Wiggins 1957-6-20 14133 Humboldt East side of highway, Trinidad Comment
  RSA10062  Polypogon interruptus Joseph P. Tracy 1930-6-29 8819 Humboldt Buck Mountain, lower foothills of its northwest slope 762 Comment
  SEINET200575 Image available Polypogon interruptus J. P. Tracy 1938-8-28 16137 Humboldt Trinidad coastal bluffs 0 Comment
  UCD91028  Polypogon interruptus Joseph P. Tracy 1936-6-8 14871 Humboldt Trinidad. 9 Comment
  HSC10844  Polypogon monspeliensis D. E. Anderson 1961-8-25 1743 Humboldt Beach area 1.5 miles S of Trinidad. Comment
  RSA46871  Polypogon monspeliensis Doris K. Kildale 1927-6-25 3546 Humboldt Shelter Cove. Comment
  UC1145086  Polypogon monspeliensis Joseph P. Tracy 1938-7-11 16049 Humboldt near Samoa; Humboldt Bay, near Samoa 6 Comment
  UC39746  Polypogon monspeliensis Harley P. Chandler June 1901 1431 Humboldt sandy banks Klamath River; North Coast Ranges, Klamath River 335 Comment
  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
  UC519314  Polystichum imbricans subsp. imbricans Joseph P. Tracy 1933-6-13 12596 Humboldt near summit on rd w from Hoopa to Bair's Hoopa Mt.; Northern Coast Ranges 1066 Comment
  UC906748  Polystichum imbricans subsp. imbricans Joseph P. Tracy 1947-7-9 17842 Humboldt Horse Mt. 1432 Comment
  JEPS296  Polystichum munitum W. L. Jepson 1932-7-26 16406 Humboldt Bull Creek Comment
  RSA46706  Polystichum munitum Doris K. Kildale 1929-3-10 6944 Humboldt Bug Creek Comment
  SBBG296  Polystichum munitum H. and M. Dearing 1939-5-27 3454 Humboldt Bishop Pine Lodge, Patricks Pt Comment
  JEPS33235  Polystichum munitum Lincoln Constance 1934-6-11 850 Humboldt S Fork Eel River Comment
  UC922660  Polystichum munitum Annie M. Alexander and Louise Kellogg 1948-9-3 5574 Humboldt above Trinity River Rd Hoopa Reservation Comment
  UC1196662  Populus trichocarpa Joseph P. Tracy 1932-5-11 9970 Humboldt 2 mi n Samoa; North Coast Ranges 6 Comment
  UC275527  Populus trichocarpa Joseph P. Tracy 1923-3-25 6167 Humboldt Alton; Northern Coast Region, Alton 30 Comment
  JEPS395  Potamogeton foliosus Joseph P. Tracy 1934-8-14 13588 Humboldt South Fork of Eel River (midway between Miranda and Garberville) 91 Comment
  SBBG88770  Potamogeton natans A. Keedy 1988-9-20 12 Humboldt off Alder Grove Rd, N of Arcata, near Hwy 299, Arcata Salt Marsh Project Comment
  CAS-BOT-BC454089  Potamogeton pusillus subsp. tenuissimus William Anderson 1964-8-4 s.n. Humboldt Shore Acres. McKinleyville Comment
  HSC36301  Potamogeton richardsonii Camille Cornish 1973-10-10 5 Humboldt Edge of Freshwater Lagoon Comment
  CAS-BOT-BC143079  Potentilla anserina subsp. pacifica Doris K. Kildale 1926-6-29 2249 a Humboldt Mouth of Mad River Comment
  HSC90640  Potentilla anserina subsp. pacifica Gail Newton 1982-6-10 3605 Humboldt Elk River Wildlife Area, Eureka Comment
  UC1586954  Potentilla drummondii Juha Pykala and D. H. Norris 1987-6-11 1593 Humboldt s North Trinity Mountain (w of Crogan Hole); North Trinity Mountain Wilderness Area 1550 Comment
  CAS-BOT-BC517506  Prosartes smithii Carl B. Wolf 1937-9-10 9313 Humboldt 2 miles E of Trinidad on way to Hammond Lumber Co. Camp 20 152 Comment
  CAS-BOT-BC517510  Prosartes smithii Doris K. Kildale 1930-4-27 9563 Humboldt Prairie Creek, near Orick Comment
  CAS-BOT-BC517513  Prosartes smithii Michael A. Hanson 1990-5-21 70 Humboldt 0.5 miles (0.8 km) east of Humboldt State University Life Science Building in Arcata near a stream in Redwood Forest. Comment
  HSC49800  Prosartes smithii R. York 1979-4-9 214 Humboldt Behind HSU campus, by trail Comment
  SEINET12050892  Prosartes smithii F. H. Utech 1977-1 77 -370 Humboldt ca 4.5 mi S of Del Norte County line on US 101 enroute to Crescent City Comment
  HSC14302  Prunella vulgaris William J. Ferlatte, B. D. Rogers 1966-6-15 2093 Humboldt Near Bridgeville Comment
  HSC31554  Prunella vulgaris Glenn McGourty 1974-5-11 44 Humboldt Along Maple Creek Rd. Comment
  CDA40758  Prunella vulgaris subsp. lanceolata M. Pryor 1948-7-29 s.n. Humboldt 1 mile east of Loleta. 0 Comment
  JEPS62488  Prunella vulgaris var. lanceolata Joseph P. Tracy 1940-9-26 16729 Humboldt Eureka 6 Comment
  UC1321006  Prunella vulgaris var. lanceolata Andrew P. Nelson 1960-7-19 627 Humboldt Eagle Point on Eel River (s of Meyer's Flat) Comment
  UC1225839  Prunella vulgaris var. vulgaris Joseph P. Tracy 1942-10-18 17404 Humboldt Jacoby Creek near the quarry Jacoby Creek 152 Comment
  CAS-BOT-BC159988  Prunus emarginata Harley P. Chandler 1901-6-1 1273 Humboldt Hupa Indian Reservation 1066 Comment
  POM288759  Pseudognaphalium californicum Lyman Benson 1928-7-11 458 Humboldt Weott Ranger Station, Mt. Range: Seaward N Coast; Drainage Area: S Fork Eel River. 61 Comment
  HSC35014  Pseudognaphalium stramineum Thomas W. Nelson, James Nelson 1974-9-15 1714 Humboldt W of Fairhaven, Samoa Peninsula Comment
  BLMAR148  Pseudotsuga menziesii Donald Hazlett 1994-6-9 148 Humboldt King range, E-facing slope off hourse mountain ridge 609 Comment
  CAS-BOT-BC80113  Pseudotsuga menziesii Joseph P. Tracy 1949-4-3 18278 Humboldt Trinidad 60 Comment
  SEINET3875696  Pseudotsuga menziesii K. S. Erdman 1970-6-17 4792 Humboldt Redwood National Park near Holter Ridge entrance along Bald Hills Road southeast of Orick.; 0 Comment
  UC902023  Pseudotsuga menziesii var. menziesii Joseph P. Tracy 1949-4-3 18278 Humboldt Trinidad 3 Comment
  RSA170252  Psilocarphus brevissimus Joseph P. Tracy, Francis W. Pennell 1940-7-7 16674 Humboldt Grouse Mountain. 1555 Comment
  SEINET11722268  Pteridium aquilinum var. pubescens C. S. Kaut 2000-1 3 Humboldt Trinidad Comment
  HSC90883  Puccinellia nutkaensis Leonel Arguello 1989-6-24 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata; 30 yards from Salt Marsh Trail. Comment
  HSC100475  Pyrola bracteata Carl C. Marshall Jun 1885 107 Humboldt Higher hills. Comment
  HSC74406  Pyrola crypta Gail Newton 1980-8-10 2018 Humboldt Near Blake Mtn. 1798 Comment
  UC153965  Pyrola picta Joseph P. Tracy 1909-7-31 3047 Humboldt Kneeland Prairie 762 Comment
  UC412733  Pyrola picta Harley P. Chandler Jun 1901 1524 Humboldt Klamath River 457 Comment
  UC562453  Pyrola picta Joseph P. Tracy 1935-7-30 14356 Humboldt Salmon Summit 1767 Comment
  UC562733  Pyrola picta Joseph P. Tracy 1932-7-14 10569 Humboldt Trinity Summit, near Corral Prairie 1584 Comment
  UC1197584  Pyrola picta Joseph P. Tracy 1949-7-19 18377 Humboldt Grouse Mountain, at Friday Camp Grouse Mountain; , Friday Camp 1219 Comment
  HSC100630  Pyrus rivularis Carl C. Marshall Aug 1886 252 Humboldt Near streams. Comment
  UC503089  Quercus chrysolepis H. E. Parks and Joseph P. Tracy 1931-5-17 9413 Humboldt opposite Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC5545  Quercus chrysolepis unknown 1867-6-17 Humboldt Elk Ridge Comment
  UCD40471  Quercus chrysolepis Rodney Gale Myatt 1971-9-21 1185 -12 Humboldt Near Orleans, northeast of Hoopa Reservation, along Klamath River. 185 Comment
  HSC43854  Quercus garryana Maralyn O'Meara 1974-7-17 550 Humboldt Kneeland Comment
  HSC74269  Quercus garryana M. A. Baker 1980-5-23 1371 Humboldt Near Buck Mtn. 1524 Comment
  HSC98723  Quercus kelloggii Cara Witte 2008-7-11 885 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1641 Comment
  JEPS37674  Quercus sadleriana W. L. Jepson Jul 16 1902-Jul 23 1902 2033 Humboldt just below Trinity Summit 2133 Comment
  CAS-BOT-BC104537  Quercus vacciniifolia Doris K. Kildale 1928-10-7 6747 Humboldt Willow Creek Canyon 7 miles from mouth Comment
  HSC32221  Quercus vacciniifolia J. O. Sawyer 1970-6-24 2219 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC37839  Quercus vacciniifolia Thomas W. Nelson, Jane P. Nelson 1976-2-21 2245 Humboldt Beside the Hoopa-Redwood Valley Rd. ca. 5 mi. W of Hoopa Comment
  HSC99036  Quercus vacciniifolia Cara Witte 2008-9-27 1047 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. At end of the road. 1407 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-BC104664  Quercus wislizeni J. G. Lemmon 1904-1-1 s.n. Humboldt Eel River Comment
  CAS-BOT-BC104665  Quercus wislizeni Doris K. Kildale 1927-3-1 3107 Humboldt Fort Seward 106 Comment
  UC1196506  Quercus wislizeni Joseph P. Tracy 1923-10-14 6577 Humboldt North Dobbyn Creek Northern Coast Ranges 152 Comment
  CAS-BOT-BC186672  Ranunculus Mrs. H. C. Cantelow 1935-5-31 828 Humboldt 8 mi. nor. of Orick Comment
  UC1196259  Ranunculus alismifolius Joseph P. Tracy 1912-7-31 3905 Humboldt Burr Valley Northern Coast Ranges, Buck Mountain (nw slope of mt.) 1066 Comment
  UC118296  Ranunculus aquatilis var. hispidulus W. W. Price 1890-7-1 Humboldt near Jarnigans; Mad River Comment
  HSC18135  Ranunculus californicus var. cuneatus A. H. Teshima 1963-2-15 2 Humboldt Moonstone Beach Comment
  RSA183644  Ranunculus hebecarpus D. E. Anderson 1965-5-8 3628 Humboldt 0.6 miles west of bridge over North Fork of Mad River, along Highway 299 Comment
  HSC39443  Ranunculus muricatus Linda M. Barker 1976-4-30 1404 Humboldt 3 mi. W of Arcata Comment
  HSC71056  Ranunculus occidentalis Thomas W. Nelson, Jane P. Nelson 1977-5-30 3390 Humboldt McKeown Ranch. Along road to Anderson's Ford. 854 Comment
  UC1196212  Ranunculus occidentalis J. P. Tracy 1901-5-5 1066 Humboldt Immediate vicinity of Eureka 0 Comment
  UC1196224  Ranunculus occidentalis Joseph P. Tracy 1920-5-18 5327 Humboldt 5 mi above Dyerville; Northern Coast Ranges, South Fork Eel River, Forest Lodge 60 Comment
  SEINET6908793  Ranunculus occidentalis var. occidentalis Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Saddle near east end of Bald Hills, southeast of Orick. Comment
  UC1542906  Ranunculus orthorhynchus var. orthorhynchus H. E. and S. T. Parks May 1930 755 Humboldt Laribee Valley Comment
  UC13969  Ranunculus orthorhynchus var. orthorhynchus Chesnut and Drew 1888-7-20 Humboldt Pilot Creek Comment
  UC160952  Ranunculus repens Joseph P. Tracy 1910-6-5 3150 Humboldt region about Humboldt Bay Northern Coast Region (marshes) 0 Comment
  HSC64070  Raphanus sativus J. P. Smith 1971-10-6 4965 Humboldt End of Murray Rd. in McKinleyville. Comment
  UC870781  Rhamnus californica S. K. Harris and J. P. Tracy 1936-6-10 3254 Humboldt Tracy's Ranch Willow Creek Comment
  UC902204  Rhamnus californica Joseph P. Tracy 1942-8-30 17304 Humboldt Willow Creek Trinity River Valley 152 Comment
  RSA7735  Rhamnus californica subsp. occidentalis Carl B. Wolf 1927-8-28 1172 Humboldt On grade 9 miles from Willow Creek, Lord Ellis Road to Blue Lake Comment
  JEPS42055  Rhamnus purshiana Lincoln Constance 1934-6-19 917 Humboldt near Grasshopper Peak summit; South Fork Eel River, Bull Creek Region 914 Comment
  POM244260  Rhamnus purshiana Carl B. Wolf 1931-8-30 2373 Humboldt E side of Eureka on P st, on block N of Henderson Street. 30 Comment
  UC902200  Rhamnus purshiana Joseph P. Tracy 1947-7-5 17818 Humboldt Box Camp Trinity Summit 1463 Comment
  CAS-BOT-BC58192  Rhododendron columbianum Doris K. Kildale 1927-6-26 3593 Humboldt Patick's Point. Comment
  HSC12372  Rhododendron columbianum Steve Dorei 1970-10-14 100 Humboldt Big Lagoon Comment
  UC22135  Rhododendron occidentale Harley P. Chandler June, 1901 1448 Humboldt Klamath River; North Coast Ranges, Klamath River 457 Comment
  HSC27891  Rhododendron occidentale var. paludosum Clifton Raymond Chesbrough 1973-6-19 68 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  HSC7883  Rhododendron occidentale var. paludosum J. Pursell 1964-10-6 1062 Humboldt Big Lagoon Bog Comment
  CAS-BOT-BC433139  Ribes Doris Kildale Gillespie 1931-6-7 10638 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  CAS-BOT-BC433141  Ribes W. R. Dudley 1899-1-1 s.n. Humboldt Possibly South of Arcata Comment
  HSC40828  Ribes binominatum Thomas W. Nelson, Jane P. Nelson 1976-7-26 3040 Humboldt Along ridge NW of Lassic Peak. 1707 Comment
  UCR139068  Ribes bracteosum E. Brower, S. Marubayashi, E. Perry 1997-5-10 055 Humboldt Intersection of Hwy 299 and Redwood Hwy 12 Comment
  HSC100490  Ribes bracteosum Carl C. Marshall May 1886 194 Humboldt Near stream. Comment
  CAS-BOT-BC108908  Ribes divaricatum var. pubiflorum Doris K. Kildale 1926-3-14 1532 Humboldt Blue Slide - on Van Duzen River. Comment
  RSA0025005  Ribes divaricatum var. pubiflorum L. R. Abrams 1922-6-25 8248 Humboldt Near South Bay. Comment
  UC667074  Ribes inerme var. klamathense Joseph P. Tracy 1939-5-14 16297 Humboldt opposite Buck Mountain (Dinsmore's); Van Duzen River 762 Comment
  HSC44193  Ribes lacustre Thomas W. Nelson, Jane P. Nelson 1977-6-19 3490 Humboldt 1616 Comment
  HSC48834  Ribes lacustre Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 45 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  UC492208  Ribes lacustre Joseph P. Tracy 1932-7-16 10623 Humboldt near Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  UC667070  Ribes lacustre Joseph P. Tracy 1933-7-16 12784 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC97283  Ribes laxiflorum M. Mesler 2007-3-23 745 Humboldt Near Trinidad, trail from Mill Creek to Elk Head. 61 Comment
  CAS-BOT-BC173366  Ribes lobbii Volney Rattan 1882-6-1 s.n. Humboldt Coast Mts. North of San Francisco Bay Comment
  HSC103201  Ribes marshallii Jade Paget-Seekins 2010-7-6 40 Humboldt On the western shore of Red Cap Lake, mostly to the right of the rocky slope. (Accessible via a few hour hike from the High Point trailhead outside of Forks of Salmon.) 1754 Comment
  CAS-BOT-BC206033  Ribes menziesii E. R. Johnson 1929-8-1 11211 Humboldt Arcata, Redwood Park Comment
  CAS-BOT-BC206044  Ribes menziesii Doris K. Kildale 1928-2-19 4272 Humboldt Patrick's Point Comment
  HSC20317  Ribes menziesii G. B. Kendall 1965-5-16 33 Humboldt Trinidad State Park Comment
  SBBG72058  Ribes menziesii H. E. Parks -Apr-1933 4402 Humboldt McNeils Crk, vicinity of Trinidad Comment
  UC249627  Ribes menziesii Joseph P. Tracy 1921-4-4 5428 Humboldt near Korbel (at Camp Bauer); Northern Coast Ranges 30 Comment
  HSC102620  Ribes nevadense M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1607 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  HSC20326  Ribes roezlii Doris K. Kildale 1926-6-27 2232 Humboldt Little Van Duzen River, at bridge on Bridgeville-Red Bluff Rd. Comment
  RSA0024585  Ribes roezlii var. cruentum Peter H. Raven, Richard Snow 1958-7-20 13630 Humboldt Friday Ridge Road to Grouse Mountain, 10.8 miles southwest of junction with United States Highway 299. Comment
  HSC74678  Ribes roezlii var. roezlii Gail Newton 1981-7-10 2227 Humboldt Near Board Camp Butte 1494 Comment
  CAS-BOT-BC212519  Ribes sanguineum Alice Eastwood 1907-4-21 14 Humboldt Trinidad Comment
  UC11646 Image available Ribes sanguineum Harley P. Chandler June, 1901 1287 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC902091  Ribes sanguineum Joseph P. Tracy 1948-9-5 18178 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  RSA0018244  Ribes sanguineum S. Ganley 1971-5-29 661 Humboldt Highway 299, along Trinity River. 457 Comment
  UC1127607  Ribes sanguineum var. glutinosum A. E. Wieslander 1931-7-28 246 Humboldt Railroad Creek, Crannell Eureka Quadrangle Comment
  HSC99358  Ribes sanguineum var. sanguineum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 7 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1198919  Ribes viscosissimum Joseph P. Tracy 1942-9-6 17308 Humboldt near McKay; South Fork Mountain 1676 Comment
  UC166087  Rigiopappus leptocladus Joseph P. Tracy 1911-7-7 3405 Humboldt between Willow Creek and Campbell Creek (viz ridge n of Willow Creek near the summit); Northern Coast Ranges, Brannan Mountain 914 Comment
  UC552249  Romanzoffia californica Joseph P. Tracy 1928-4-29 8424 Humboldt Prairie Creek North Coast Ranges, Prairie Creek 60 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
  UC906678  Romanzoffia californica Joseph P. Tracy 1943-5-9 17423 Humboldt along Trinity Hwy. Willow Creek Canyon (rock bluffs near Ruby Creek) 609 Comment
  JEPS2836 Image available Romanzoffia tracyi Joseph P. Tracy 1933-5-9 11008 Humboldt wet slide on bluff near Ocean; Northern Coast Region, Vicinity of Trinidad; Vicinity of Trinidad, Humboldt Co. 15 Comment
  NY337230  Romanzoffia tracyi J. P. Tracy 1933-5-9 11008 Humboldt Vicinity of Trinidad 15.2 Comment
  HSC99388  Rorippa nasturtium-aquaticum K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 37 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC562691  Rorippa nasturtium-aquaticum Joseph P. Tracy 1935-5-25 13862 Humboldt Fort Seward 106 Comment
  UC902153  Rosa Joseph P. Tracy 1947-8-24 17889 Humboldt near Box Camp; Trinity Summit 1524 Comment
  CAS-BOT-BC146496  Rosa gymnocarpa Doris K. Kildale 1927-7-3 3644 Humboldt Willow Creek Flat 152 Comment
  HSC58243  Rosa gymnocarpa G. L. Clifton, Griswold 1979-8-2 12413 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC99447  Rosa gymnocarpa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 97 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC99509  Rosa gymnocarpa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 171 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
  HSC98694  Rosa gymnocarpa var. gymnocarpa Cara Witte 2007-6-5 213 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1 mile south of intersection with 5N04. 1434 Comment
  CAS-BOT-BC146826  Rosa nutkana Doris K. Kildale 1927-6-28 3606 Humboldt Mad River near covered bridge on Redwood Highway Comment
  UC1541247  Rosa nutkana var. nutkana H. E. Parks July 1933 4698 Humboldt vicinity of Trinidad Comment
  UC902162  Rosa nutkana var. nutkana Joseph P. Tracy 1947-8-10 17883 Humboldt 2 mi s of town Field's Landing 6 Comment
  CAS-BOT-BC148345  Rosa pisocarpa Joseph P. Tracy 1933-7-25 12898 Humboldt Grouse mt. 1524 Comment
  UC667036  Rosa pisocarpa Joseph P. Tracy 1934-7-18 13416 Humboldt Grouse Mt. 1432 Comment
  HSC99307  Rosa rubiginosa C. B. Wolf 1927-8-30 1229 Humboldt 2 mi. S of Petrolia on the Matole River near the road crossing the river Comment
  JEPS45684  Rosa spithamea Joseph P. Tracy 1925-7-12 7196 Humboldt near the South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UCD113775  Rubus armeniacus K. Twitchell 1996-5-11 27 Humboldt Crannell, along old Highway 101 at Moonstone Beach access. 36 Comment
  POM366457  Rubus laciniatus Thekla Mohr 1900-07 s.n. Humboldt Eel River Comment
  HSC70811  Rubus parviflorus Gail Newton 1980-7-23 1748 Humboldt Near Packsaddle Ridge 1463 Comment
  UCD98613  Rubus parviflorus Lindsay Clark; Stella Hartono 2009-9-15 KRC 40 Humboldt Nadelos Campground in King Range Conservation Area. 506 Comment
  SEINET11910996  Rubus parviflorus F. H. Utech 1986-1 86 -394 Humboldt ca 5 mi N on Kings Peak Rd., from junction with Shelter Cove Rd., near Tolkan Recreation Area 480 Comment
  HSC100638  Rubus spectabilis Carl C. Marshall Apr 1886 165 Humboldt Everywhere in rich soils. Comment
  HSC19678  Rubus spectabilis J. W. Johnson 1962-4-20 1277 Humboldt Along the Lanphere Lane, Samoa Peninsula Comment
  HSC19690  Rubus spectabilis K. P. St. John 1965-4-3 8 Humboldt Dry Lagoon State Park, 13 mi. N of Trinidad Comment
  HSC60111  Rubus spectabilis M. A. Baker 1977-5-1 278 Humboldt E of Humboldt State University. Comment
  UC14181  Rubus spectabilis W. C. Blasdale 1896-5-31 Humboldt Eureka Comment
  HSC19694  Rubus ursinus Lincoln Constance 1934-5-29 727 Humboldt Upper Look Prairie; South Fork Eel River 366 Comment
  HSC74629  Rubus ursinus M. A. Baker 1980-5-17 1236 Humboldt Near Le Perron Peak 1066 Comment
  JEPS47708  Rubus ursinus Lincoln Constance 1934-5-29 727 Humboldt Upper Look Prairie South Fork Eel River, Bull Creek Region 365 Comment
  UCD17614  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 051 Humboldt California. Humboldt County: 23.1 miles from Ettersburg on road to Dyerville. Comment
  HSC37937  Rumex acetosella Peter Sorensen 1976-5-28 Humboldt N Spit of Humboldt Bay, S of Samoa Comment
  CHSC31287  Rumex crispus Mark Stopher 1980-6-4 100 Humboldt In diked off upland habitat along Elk River near Hwy 101 bridge. 1 Comment
  UCD101126  Rumex crispus Linda M. Barker 1976-6-22 1622 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC64441  Rumex crispus J. P. Smith, Steve Selva 1970-6-14 3851 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  SEINET200757  Rumex crispus Joseph P. Tracy 1908-7-30 2806 Humboldt Valley of Van Duzen River, opposite Buck Mountain. 300 Comment
  CAS-BOT-BC433703  Rumex occidentalis W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  UC722995  Rumex salicifolius var. crassus C. L. Hitchcock and J. S. Martin 1939-7-14 5438 Humboldt Shelter Cove Comment
  UC672874  Ruppia maritima Joseph P. Tracy 1938-7-15 16079 Humboldt Mouth of Eel River 3 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
  CAS-BOT-BC239838  Rytidosperma penicillatum Joseph P. Tracy 1942-6-28 17267 Humboldt At Hungry Hollow, on Bald Mountain 609 Comment
  JEPS79972  Sagina apetala Joseph P. Tracy 1933-5-19 12200 Humboldt Alton to Fortuna (Eel R.); Eel R. 15 Comment
  CAS-BOT-BC445640  Sagittaria cuneata Henry M. Pollard 1946-8-16 s.n. Humboldt Pond near Harley place, Orleans region Comment
  JEPS93952  Salicornia virginica Vernon H. Oswald 1998-9-2 9562 Humboldt Humboldt Bay National Wildlife Refuge s of Eureka (Hookton Slough Trail on the levee along s side of Hookton Slough); Humboldt Bay National Wildlife Refuge, Hookton Slough Comment
  CAS-BOT-BC132668  Salix A. T. Whittemore 1980-3-15 80 -002 Humboldt Arcata, in residential area, along Alliance Road from Foster Ave. to the railroad tracks Comment
  CAS-BOT-BC129894  Salix bonplandiana Joseph P. Tracy; Harold E. Parks 1942-5-16 11568 Humboldt Vicinity of Garberville 152 Comment
  CAS-BOT-BC103818  Salix exigua Harold E. Parks 1931-5-14 0964 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  LA208688  Salix exigua var. hindsiana Harold E. Parks; 1931-5-14 958 Humboldt Fernbridge, Eel River 10.0 Comment
  CAS-BOT-BC107729  Salix hookeriana Harold E. Parks 1931-3-24 912 Humboldt Eel River, Fortuna 10 Comment
  HSC33076  Salix hookeriana Thomas W. Nelson, Jim Ackerman 1974-5-14 1265 Humboldt Beside old Samoa-Crannell railroad bed adjacent to the Mad River Slough N of Emerson Mill Comment
  HSC40869  Salix hookeriana Linda M. Barker 1976-3-22 1340 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC59447  Salix hookeriana Kenneth Clark 1979-4-3 34 Humboldt Manila, SW from end of Old Samoa Rd. Comment
  HSC90382  Salix hookeriana Jean Hanson 1980-3-8 1 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  HSC90764  Salix hookeriana Gail Newton 1983-6-5 3641 Humboldt Elk River Wildlife Area, Eureka Comment
  RSA34314  Salix hookeriana C. Kistner 1935-5-10 s.n. Humboldt Samoa. Comment
  SBBG59113  Salix hookeriana H. E. Parks 1931-5-28 1000 Humboldt Little River Lagoon Comment
  UC1196546  Salix hookeriana Joseph P. Tracy 1926-3-14 7390 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC176701  Salix hookeriana Joseph P. Tracy 1913-9-21 4414 Humboldt Humboldt Bay Northern Coast Region (dunes of ocean beach) Comment
  UC249537  Salix hookeriana Joseph P. Tracy 1922-3-26 5984 Humboldt Fieldbrook Northern Coast Region 60 Comment
  UC303032  Salix hookeriana Joseph P. Tracy 1926-3-14 7391 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC469119  Salix hookeriana Joseph P. Tracy 1927-4-23 7921 Humboldt Big Lagoon Northern Coast Ranges 6 Comment
  UC481351  Salix hookeriana Harold E. Parks 1931-5-12 955 Humboldt Samoa Humboldt Bay, Samoa Comment
  UC481387  Salix hookeriana Harold E. Parks 1931-3-24 915 a Humboldt Trinidad 90 Comment
  UC512085  Salix hookeriana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-11 1221 Humboldt 1 mi n Samoa (in pine barrens near the coast) Comment
  UC519341  Salix hookeriana Joseph P. Tracy 1933-7-20 12808 Humboldt near Blue Lake (on gravel bar); Northern Coast Region, Mad River 15 Comment
  UC526715  Salix hookeriana Joseph P. Tracy 1934-6-28 13267 Humboldt Salmon Creek Valley around Humboldt Bay Northern Coast Ranges, Humboldt Bay, Salmon Creek Valley 9 Comment
  HSC104061  Salix hookeriana M. F. Norman 2015-4-11 2 Humboldt Arcata, Ma-le'l Dunes Comment
  RSA0034648  Salix hookeriana Harold E. Parks 1931-5-28 01000 Humboldt Little River Lagoon. Comment
  UC504056  Salix lasiandra subsp. lasiandra Jim Davis Apr 25 1933-Apr 27 1933 3 Humboldt around Eureka Eureka Comment
  LA208824  Salix lasiandra var. lasiandra Harold E. Parks; 1931-5-14 959 Humboldt Van Duzen River between Alton and Carlotta 15.0 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
  CHSC96698  Salix lasiolepis Gordon Leppig 1999-4-15 1119 Humboldt Big Lagoon County Park, Big Lagoon Bog. On western edge of fen. NAD 27 UTM Zone 10, 405321E, 4557202N. 3 Comment
  HSC96595  Salix lasiolepis Gordon Leppig 2003-2-4 1803 Humboldt NWR South Bay Unit 2 Comment
  POM161056  Salix lasiolepis Joseph P. Tracy 1926-9-19 7804 Humboldt Valley of S Yager Creek 762 Comment
  UC469407  Salix lasiolepis Joseph P. Tracy 1927-3-27 7868 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC469432  Salix lasiolepis Joseph P. Tracy 1931-10-3 9701 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC470408  Salix lasiolepis Joseph P. Tracy 1931-9-19 9675 Humboldt Alton Northern Coast Region 30 Comment
  UC470415  Salix lasiolepis Joseph P. Tracy 1931-10-3 9702 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC490463  Salix lasiolepis Joseph P. Tracy 1932-9-5 10765 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  UC504025  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1319 Humboldt Redwood Creek, at Berry's, on Trinity Highway 274 Comment
  UC506344  Salix lasiolepis Joseph P. Tracy 1933-3-19 10932 Humboldt Blue Slide, on Van Duzen River 228 Comment
  UC506385  Salix lasiolepis Joseph P. Tracy 1932-6-4 10130 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC506400  Salix lasiolepis Joseph P. Tracy 1932-8-21 10358 Humboldt Three Cabins Northern Coast Ranges, Chaparral Mountain (lower western foothills of mt.) 457 Comment
  UC506404  Salix lasiolepis Joseph P. Tracy 1932-10-8 10866 Humboldt Berry's Mt. Northern Coast Ranges (on Trinity Hwy) 762 Comment
  UC512017  Salix lasiolepis C. R. Ball, H. E. Parks, and J. P. Tracy 1932-5-17 1340 Humboldt near pond at Willow Creek (Graham Ranch) near junction with Trinity River Comment
  UC512040  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1322 Humboldt at Berry's Redwood Creek (on Trinity Hwy.) 274 Comment
  UC512044  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1317 Humboldt Redwood Creek, at Berry's, on Trinity Highway Comment
  UC519336  Salix lasiolepis Joseph P. Tracy 1933-5-20 12264 Humboldt near Petrolia; North Coast Region, Mattole River 15 Comment
  CAS-BOT-BC107411  Salix lasiolepis var. lasiolepis Doris K. Kildale 1927-3-20 2907 Humboldt Stephens Grove on South Fork of Eel River 60 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
  POM89799  Salix melanopsis Joseph P. Tracy 1920-5-31 5334 Humboldt Mouth of Yager Creek. 30 Comment
  SD976  Salix melanopsis Harold E. Parks 1931-5-14 964 Humboldt Van Duzen River between Alton and Carlotta 14 Comment
  UC1196569  Salix melanopsis Joseph P. Tracy 1932-5-1 9851 Humboldt along Van Duzen R. Alton; North Coast Ranges, Van Duzen R. 30 Comment
  UC1196570  Salix melanopsis Joseph P. Tracy 1932-7-31 10292 Humboldt at mouth of Larrabee Creek Eel R.; Northern Coast Ranges, Eel R. 60 Comment
  UC469458  Salix melanopsis Joseph P. Tracy 1931-9-19 9681 Humboldt Van Duzen R. Alton; Northern Coast Region, Van Duzen R. 30 Comment
  UC470457  Salix melanopsis Joseph P. Tracy 1931-9-7 9647 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC481826  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt 6 km. s. Alton (e. of Redwood Hwy.) 20 Comment
  UC490558  Salix melanopsis Joseph P. Tracy 1932-5-10 9960 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC512011  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1234 Humboldt 1 1/2 mi. e. Alton (floodplain of Van Duzen R.); Van Duzen R. 30 Comment
  UC519370  Salix melanopsis Joseph P. Tracy 1933-6-9 12531 Humboldt along Eel R. Shively; Northern Coast Ranges, Eel R., Shively 30 Comment
  UC519374  Salix melanopsis Joseph P. Tracy 1933-6-9 12532 Humboldt along Eel R. Shively; Northern Coast Ranges, , Eel R. 30 Comment
  RSA5651  Salix melanopsis var. tenerrima H. E. Parks, Joseph P. Tracy 1931-5-17 972 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  SEINET12003513  Salix piperi J. P. Tracy 1950-1 19366 Humboldt On foothills of the Cape Ridge, 0.5 mi S of town, 1 mi inland from Cape Mendocino 61 Comment
  UC1173576  Salix scouleriana Joseph P. Tracy 1936-2-2 14767 Humboldt vicinity of Carlotta 30 Comment
  UC1173625  Salix scouleriana Joseph P. Tracy 1937-3-21 15238 Humboldt near Grizzly Creek Van Duzen R. 91 Comment
  UC1196701  Salix scouleriana J. P. Tracy 1900-12-22 974 Humboldt immediate vicinity Eureka 0 Comment
  UC275521  Salix scouleriana Joseph P. Tracy 1924-7-4 6716 Humboldt at Hungry Hollow Bald Mt.; Northern Coast Ranges 762 Comment
  UC490507  Salix scouleriana Joseph P. Tracy 1932-8-11 10338 Humboldt Bridgeville Northern Coast Ranges, Bridgeville 228 Comment
  UC525977  Salix scouleriana H. E. Parks 1933-1-24 1353 Humboldt Spruce Cove (Parks Ranch) Trinidad; , Spruce Cove (Parks Ranch) Comment
  UC54674  Salix scouleriana J. P. Tracy 1900-12-30 977 Humboldt immediate vicinity Eureka Eureka 0 Comment
  CAS-BOT-BC126274  Salix sessilifolia Harold E. Parks 1931-8-25 01061 Humboldt Blue Slide, Van Duzen River 90 Comment
  CAS-BOT-BC126275  Salix sessilifolia C. R. Ball; H. E. Parks; J. P. Tracy 1932-5-17 01337 Humboldt At Willow Creek, (Graham Ranch), near its junction with Trinity River 152 Comment
  CAS-BOT-BC128953  Salix sitchensis A. T. Whittemore 1979-4-5 79 -015 Humboldt Arcata, cleared field along Alliance Road immediately north of Arcata High School Comment
  CAS-BOT-BC128996  Salix sitchensis Joseph P. Tracy 1931-9-19 9683 Humboldt Alton, Van Duzen River 30 Comment
  HSC79548  Salix sitchensis Kenneth Clark 1980-3-27 548 Humboldt Creek on W slope of Dead Man's Gulch 114 Comment
  HSC90747  Salix sitchensis Jean Hanson 1980-3-8 24 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  UC1199054  Salix sitchensis Joseph P. Tracy 1938-7-31 16088 Humboldt head of Willow Creek (along Trinity Hwy.); Willow Creek Canyon, Willow Creek 762 Comment
  UCSB26078  Salix sitchensis Crovello, Theodore 1964-6-24 Humboldt Along Lost Man Creek 100 yards west of junction with U.S. 101 j 2.5 miles south of turnoff from U.S. 101 for Prairie Creek Redwoods State Park Comment
  SBBG25586  Sambucus nigra subsp. caerulea E. R. Blakley 1966-8-17 6796 Humboldt Little Crk, Prairie Crk St Park, ca. 10 mi N of Orick 60 Comment
  CAS-BOT-BC235122  Sambucus racemosa var. racemosa Doris K. Kildale 1927-6-27 3604 Humboldt Scotia 30 Comment
  HSC34632  Sambucus racemosa var. racemosa R. M. Sullivan 1975-4-9 1 Humboldt 2 mi. S of Trinidad on old Hwy. 101 Comment
  UC168999  Sambucus racemosa var. racemosa Joseph P. Tracy 1910-4-17 3116 Humboldt near Forks of Elk River; Northern Coast Region, region about Humboldt Bay 0 Comment
  UCSB16744  Sambucus racemosa var. racemosa Muller, Katherine 1954-6-20 Humboldt 3 mi. S. of Scotia Comment
  CAS-BOT-BC235123  Sambucus racemosa var. racemosa E. A. McGregor 1921-8-30 s.n. Humboldt Requa and vicinity. Between slough and Klamath River near hotel Comment
  CAS-BOT-BC157200  Sanguisorba officinalis L. B. Kildale 1930-7-11 10208 Humboldt Snow Camp head of Redwood Creek Comment
  UCR32083  Sanicula crassicaulis David J. Keil 1983-7-2 17341 Humboldt 2.8 mi south of SR 299 along Titlow Hill Rd., SW of Willow Creek 1098 Comment
  HSC99074  Sanicula graveolens Cara Witte 2008-6-11 705 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N18. Near utility towers. 1438 Comment
  JEPS1001  Sanicula graveolens Joseph P. Tracy 1926-5-2 7448 Humboldt nar Ruby Creek (Northern Coast Ranges, Willow Creek Canyon); Northern Coast Ranges, Willow Creek Canyon 609 Comment
  BLMAR197  Sanicula laciniata Donald Hazlett 1994-6-7 197 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC1197086  Sanicula laciniata Joseph P. Tracy 1921-4-24 5454 Humboldt facing South Fork Eel River (Northern Coast Ranges, Phillipsville); Northern Coast Ranges, Phillipsville 121 Comment
  UC791070  Sanicula laciniata Joseph P. Tracy 1948-5-31 18018 Humboldt Alder Point 152 Comment
  CHSC88615  Sanicula tracyi Linnea Hanson 1993-7-21 346 Humboldt Six Rivers National Forest. Mad River Rock Road. Comment
  UC249630  Saxifraga mertensiana Joseph P. Tracy 1922-4-30 6009 Humboldt mouth of South Fork Trinity River; Northern Coast Ranges, South Fork Trinity River 152 Comment
  CAS-BOT-BC111381  Schoenoplectus acutus var. occidentalis Carl B. Wolf 1927-8-22 771 Humboldt Big Lagoon 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
  CHSC69506  Schoenoplectus pungens Vernon Oswald; Lowell Ahart 1997-9-4 8848 Humboldt North Coast Region. Big Lagoon County Park at the southwest edge of Big Lagoon. Meadowy area bordering a small drainage entering the lagoon at the boat ramp. 3 Comment
  CAS-BOT-BC111699  Schoenoplectus pungens var. badius A. A. Heller 1924-7-21 13868 Humboldt Plentiful in a drier part of a salt marsh at Eureka. Comment
  UC668015  Scirpus maritimus Joseph P. Tracy 1934-10-13 13684 Humboldt Big Lagoon Big Lagoon (near shore) 3 Comment
  HSC36890  Scirpus microcarpus Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2058 Humboldt Beside Rd. 2S08 to Pine Mtn. Comment
  UC668008  Scirpus microcarpus Joseph P. Tracy 1932-7-14 10561 Humboldt Corral Prairie Trinity Summit, Corral Prairie 1584 Comment
  UCR122382  Scirpus microcarpus George K. Helmkamp, E. A. Helmkamp 2001-7-8 7001 Humboldt North Coast, north spit of Samoa Peninsula, 0.5 mi north of CA Hwy 255 bridge over Humboldt Bay 6 Comment
  UC1103644  Scirpus microcarpus Joseph P. Tracy 1943-7-18 17440 Humboldt along shore Big Lagoon; along shore Big Lagoon 3 Comment
  HSC15637  Scoliopus bigelovii T. W. Beck 1963-3-2 4 Humboldt Camp Bauer, Korbel, near Mad River Comment
  UC1011943  Scrophularia californica Francis W. Pennell 1940-7-6 26080 a Humboldt 2 mi nw Pepperwood (along Eel River, Rte 101) 30 Comment
  POM126381  Scutellaria antirrhinoides P. E. Goddard 1907-6-16 b. 127 Humboldt Van Duzen Comment
  UC577338  Scutellaria siphocampyloides Joseph P. Tracy 1932-5-17 10083 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  JEPS62854  Scutellaria tuberosa Joseph P. Tracy 1921-4-24 5472 Humboldt facing Northern Coast Ranges South Fork Eel River (Phillipsville); Northern Coast Ranges, Phillipsville 121 Comment
  UC1488731  Sedum laxum Marc Baker 1980-7-11 2769 Humboldt near Red Mountain; Blocksburg Quad., near Red Mountain 230 Comment
  HSC79269  Sedum laxum subsp. flavidum D. K. Imper 1983-7-13 Humboldt Six Rivers National Forest, Bennett Peak Comment
  HSC79346  Sedum laxum subsp. heckneri D. K. Imper 1983-6-17 Humboldt 1 mi. S of Cedar Camp (road to Mosquito Lake), on FS Rd. 12N12, also located along FS Rd. 12N12 4 mi. N 1159 Comment
  UC1198843  Sedum laxum subsp. heckneri Joseph P. Tracy 1944-7-3 17488 Humboldt along Trinity Highway (Willow Creek Canyon); Willow Creek Canyon 304 Comment
  HSC32276  Sedum obtusatum subsp. retusum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5627 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  HSC53871  Sedum radiatum Griswold, Butler 1979-7-10 6351 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC11264  Sedum spathulifolium C. C. Marshall 1888-1 Humboldt Comment
  HSC48309  Sedum spathulifolium var. spathulifolium R. Sutherland 1978-4-22 1 .22478 Humboldt Along King's Crest Trail 1098 Comment
  HSC71086  Sedum stenopetalum Thomas W. Nelson, Jane Nelson 1977-5-30 3405 Humboldt Large rock downstream from Anderson's Ford 640 Comment
  UCD135986  Selaginella kraussiana Frederic Hrusa; R. Bencie, L. Bencie, C. and E. Dogwin 2010-12-29 18277 Humboldt Forest E of Humboldt St. University; above Fern Lake. 47 Comment
  CAS-BOT-BC62182  Selaginella oregana Mrs. A. W. Kildale 1925-1-26 s.n. Humboldt Hungry Hollows, 5-6 mi east of Korbel Comment
  UC1225807  Selaginella wallacei Joseph P. Tracy 1948-5-31 17998 Humboldt Harris 609 Comment
  HSC98904  Selaginella wallacei Cara Witte 2008-6-7 686 Humboldt Horse Mountain Botanical Area. 1/4 mile west of intersection between National Forest 1 and Forest Service Roads 6N36, 6N38. 1426 Comment
  HSC98548  Senecio integerrimus var. major Cara Witte 2008-6-9 696 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1509 Comment
  UC128622  Senecio integerrimus var. major Joseph Burtt Davy and Walter C. Blasdale 1899-6-9 5368 Humboldt near Harris Comment
  UCD135618  Senecio minimus S. W. Cosby 1921-9-27 s.n. Humboldt south of Ferndale. Comment
  CAS-BOT-BC364222  Senecio sylvaticus L. R. Abrams 1916-7-11 6007 Humboldt Near Grizzly Creek Comment
  RSA12546  Senecio triangularis C. B. Wolf 1934-7-2 s.n. Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  HSC67893  Senecio vulgaris J. P. Smith 1973-5-26 6840 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  POM174068  Senecio vulgaris Joseph P. Tracy 1918-4-21 4884 Humboldt Eureka. 0 Comment
  UC1199237  Senecio vulgaris Joseph P. Tracy 1918-4-21 4880 Humboldt on old Kneeland Prairie Road near Newell's Camp (around Humboldt Bay); Northern Coast Ranges, around Humboldt Bay 304 Comment
  CAS-BOT-BC85835  Sequoia sempervirens Dr. A. Kellogg; W. G. W. Harford 1868-1-1 960 Humboldt unspecified Comment
  JEPS46746  Sequoia sempervirens Willis G. Corbitt 1931-4-8 Humboldt Scotia Comment
  SEINET3876306 Image available Sequoia sempervirens K. S. Erdman 1970-6-19 4840 Humboldt Redwood Creek, about 2-3 miles above the road end. Near McArthur and Elam Creeks, Redwood National Park.; 0 Comment
  NY64455  Sequoia sempervirens H. H. Smith 1911-6-16 3824 Humboldt Vanceslan No. 20 Comment
  SEINET11737925  Sequoia sempervirens J. P. Tracy 1950-1 19387 Humboldt At Park's place, Trinidad 61 Comment
  UC602550  Sherardia arvensis Joseph P. Tracy 1933-6-13 12560 Humboldt Bair's; Redwood Creek 609 Comment
  RSA47159  Sidalcea malachroides Doris K. Kildale 1926-5-16 s.n. Humboldt Horse Mountain Comment
  UC1197963  Sidalcea malachroides Joseph P. Tracy 1936-8-1 15061 Humboldt 6 mi se Korbel (Canyon Creek); , se of Korbel 304 Comment
  UCR45396  Sidalcea malviflora D. K. Imper 1985-6-18 s.n. Humboldt Six Rivers National Forest, just south of junction of 10N01 and 10N03, south of Orleans. 854 Comment
  HSC35603  Sidalcea malviflora subsp. nana Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 2009 Humboldt French Camp, Bald Hills. Comment
  UC176968  Sidalcea malviflora subsp. patula Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3598 Humboldt near Hydesville; Northern Coast Region, near Hydesville 30 Comment
  HSC102530  Sidalcea oregana subsp. oregana M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1517 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1106 Comment
  POM286444  Silene californica Lyman Benson 1929-7-19 1659 Humboldt Mouth of Matole River. Comment
  UC13562  Silene campanulata subsp. glandulosa Chesnut and Drew 1888-7-19 Humboldt Pilot Ridge Comment
  HSC102545  Silene grayi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1535 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  UC1541453  Silene hookeri H. E. Parks and J. P. Tracy 1930-5-25 791 Humboldt Laribee Valley 792 Comment
  HSC103098  Silene hookeri M. Mesler, Carol Wilson 2010-6-18 825 Humboldt Hwy 36, near mile marker 32.53 771 Comment
  CAS-BOT-BC389056  Silene laciniata subsp. californica Carl B. Wolf 1927-8-28 1175 Humboldt On the grade 9 mi. from Willow Creek, Lord Ellis Road to Blue Lake Comment
  HSC4171  Silene laciniata subsp. californica D. E. Anderson 1961-9-2 1768 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  UC161035  Silene scouleri subsp. grandis Joseph P. Tracy Sept. 1904 2141 Humboldt bluff back Bucksport (at Eureka); Northern Coast Region, at Eureka 0 Comment
  UC275484  Silene scouleri subsp. grandis Joseph P. Tracy 1925-8-30 7254 Humboldt Freshwater Lagoon Northern Coast Ranges (Northern Coast Ranges) 60 Comment
  UC668193  Silybum marianum Joseph P. Tracy 1938-7-6 16026 Humboldt Big Lagoon 12 Comment
  HSC91612  Sinapis arvensis E. Mackey 1986-12-18 Humboldt Patrick's Point State Park, along Patrick's Point Drive Comment
  CHSC19509  Sisyrinchium californicum Norman Dennis 1965-6-3 142 Humboldt Sphagnum bog at Big Lagoon County Park, southwest corner of Big Lagoon. Comment
  HSC91943  Solanum americanum E. Mackey 1987-8-28 Humboldt Patrick's Point State Park, Palmer's Point Comment
  HSC61867  Solanum aviculare John Sanders 1980-9-22 Humboldt Crannell, L side of trail N of Christie Ranch 61 Comment
  UC1196158  Solanum sarrachoides J. P. Tracy Sept. 1907 2605 Humboldt immediate vicinity of Eureka 0 Comment
  JEPS12167  Solanum umbelliferum Joseph P. Tracy 1937-5-30 15316 Humboldt Bridgeville 198 Comment
  UC577352  Solanum umbelliferum Joseph P. Tracy 1937-5-30 15316 Humboldt Bridgeville 198 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
  HSC58346  Solidago elongata Overton, Butler 1979-8-2 12674 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC76050  Solidago elongata Overton, Butler 1979-8-2 12539 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  SBBG27331  Solidago elongata H. E. and S. T. Parks -Sep-1937 24081 Humboldt Spruce Cove, Trinidad 64 Comment
  UC581770  Solidago elongata Joseph P. Tracy 1927-8-22 8346 Humboldt near High Prairie (Bald Mountain); Northern Coast Ranges, Bald Mountain 1066 Comment
  BLMAR705  Solidago spathulata Jennifer Anthony-Wheeler 1994-9-8 705 Humboldt Samoa/manilla dunes, growing in every dune mat area in the samoa rare plant protection area 12 Comment
  CAS-BOT-BC365667  Solidago spathulata A. A. Heller 1924-7-22 13872 Humboldt At Samoa opposite Eureka Comment
  HSC90234  Solidago spathulata L. Watson, J. Meninga Aug 1990 10 Humboldt Near Manilla. Mad River Slough and Dunes. 10 ft. N of parking lot, E of trail Comment
  JEPS120527  Solidago spathulata B. Castro and L. P. Janeway 2004-9-10 1474 Humboldt North Coast. South Spit of Humboldt Bay, 2.2 mi NNE of Table Bluff Lighthouse site; on other side of South Spit Road from the Humboldt Bay mudflats. Comment
  SEINET191265 Image available Solidago spathulata S. K. Harris 1939-9-5 990 Humboldt Samoa. Comment
  UC1199319  Solidago spathulata J. P. Tracy 1900-7-4 885 Humboldt opposite Eureka (Samoa); Samoa Comment
  JEPS18742  Soliva sessilis Joseph P. Tracy 1936-7-3 14852 Humboldt Trinity River Valley at Willow Creek; Trinity River Valley at Willow Creek 152 Comment
  HSC35010  Soliva sessilis J. O. Sawyer 1975-5-20 2695 Humboldt 1445 Chester Ave., Sunnybrae Comment
  UC164790  Sonchus asper J. P. Tracy 1903-8-2 1925 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC374428  Sonchus asper Joseph P. Tracy 1932-5-22 10115 Humboldt North Coast Ranges. South Fork of Eel River, between Miranda and Redway 91 Comment
  HSC6216  Sonchus asper J. L. Baker 1965-3-27 20 Humboldt 4 mi. N of Arcata on North Bank Rd. Comment
  HSC39802  Sonchus oleraceus Peter Sorensen 1976-6-11 Humboldt King Salmon Comment
  JEPS37532  Sonchus oleraceus Lincoln Constance 1934-6-3 797 Humboldt foot of bank along n side Redwood Highway at Dyerville (South Fork Eel River, Bull Creek Region); Bull Creek Region, South Fork Eel River Comment
  HSC23681  Sorbus scopulina J. O. Sawyer 1970-6-26 2302 Humboldt 1860 Comment
  HSC56101  Sorbus scopulina G. L. Clifton 1979-7-31 11824 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC102103  Sorbus sitchensis var. sitchensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1006 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  RSA246788  Sparganium angustifolium subsp. emersum Robert F. Thorne, Percy C. Everett 1965-8-9 35321 Humboldt Clam Beach County Park: along highway. 3 Comment
  SEINET3825670  Sparganium eurycarpum Unknown 1912-8-20 2987 Humboldt Lower eal River Valley Comment
  POM319543  Spartina densiflora Patricia Wilder 1968-8-21 4415 Humboldt Northern Coastal arm of Humboldt Bay, NW of Samoa, on E side of train tracks. 3 Comment
  UC1100450  Spartina densiflora Malcolm A. Nobs, S. Galen Smith 1949-8-3 1180 Humboldt 4 mi s of Eureka (on Highway 101, near mouth of the Elk River) Comment
  HSC103560  Spartium junceum Spadoni 2002-6-26 70828 Humboldt Along roadside in the vicinity of Garberville. Comment
  HSC59047  Spergula arvensis Thomas Wood 1979-4-4 93 Humboldt Near Arcata, 3/4 mi. W on Lanphere Rd. after triple intersection with Upper Bay Rd. and Mad River Rd. 0 Comment
  HSC90396  Spergularia macrotheca Jean Hanson 1980-8-28 118 Humboldt Indian (Gunther) Island. In Humboldt Bay, city of Eureka. Across from the Guard Station. Comment
  POM312888  Spiraea douglasii Malcolm A. Nobs, S. Galen Smith 1949-8-9 1226 Humboldt 1 m N of Arcata at jct of Hwys 101 and 229. Mad River Valley. Comment
  UC1199029  Spiraea douglasii Joseph P. Tracy 1924-7-13 6734 Humboldt Big Lagoon; Northern Coast Region 6 Comment
  UC275298  Spiraea douglasii R. M. Holman 1925-7-23 Humboldt Big Lagoon Comment
  UC492192  Spiraea douglasii Joseph P. Tracy 1932-8-28 10760 Humboldt Bald Mountain Northern Coast Ranges (at Lake Prairie) 1066 Comment
  UC180214  Stachys ajugoides var. rigida Joseph P. Tracy 1914-6-14 4512 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UCLA70873  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15969 Humboldt near Panther Gap (on road between Bull Creek to Mattole) 822 Comment
  UCSB5856  Stachys albens Keator, Glenn 1958-6-28 Humboldt Dyerville road; at middle altitudes Comment
  HSC12030  Stachys arvensis D. Santana 1970-11-2 113 Humboldt 14th and B St. Arcata Comment
  HSC14406  Stachys arvensis William J. Ferlatte 1963-5-5 33 Humboldt Near 11th and B St. Arcata Comment
  SDSU7904  Stachys chamissonis Harvey 1938-8-13 2269 Humboldt North of Arcata. Comment
  HSC12750  Stachys chamissonis M. J. Athey 1970-11-12 25 Humboldt Along old rd. to Trinidad about 1/4 mi. before Luffenholtz Beach Comment
  RSA32011  Stachys rigida subsp. quercetorum A. A. Heller 1937-6-11 s.n. Humboldt Along U.S. Highway 101 between Bishop Pine Lodge and Big Lagoon. Comment
  HSC76521  Stachys rigida var. rigida Michael Ericksen 1981-8-21 1083 Humboldt Near Dan East Cabin 1609 Comment
  UC1541664  Stachys rigida var. rigida H. E. and S. T. Parks May, 1930 756 Humboldt in redwood belt of Van Duzen River Comment
  UCD99372  Stellaria media Linda M. Barker 1976-4-30 1396 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC4275  Stellaria media W. F. Nickel 1965-4-12 Humboldt HSC Campus behind biological sciences building Comment
  HSC58059  Stenanthium occidentale G. L. Clifton, Griswold 1979-8-1 11935 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  BLMAR45  Stipa lemmonii Brad Barr June, 1982 45 Humboldt King range, Spanish Ridge, south facing slope Comment
  HSC32338  Stipa lemmonii D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5643 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge Comment
  HSC96939  Stipa lemmonii Ryoko Ito, Shauna McDonald 2007-6-11 4 Humboldt 14.1 mi. above Hwy. 299 1372 Comment
  UC161577  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy July 1908 2764 Humboldt ridge between Van Duzen and Mad Rivers near Low Gap; Northern Coast Ranges 914 Comment
  HSC100891  Streptopus amplexifolius Carl C. Marshall May 1886 191 Humboldt Jacoby Cr. Comment
  HSC73741  Swertia radiata M. A. Baker 1980-7-19 2995 Humboldt Near Bret Hole. 1814 Comment
  UC1239632  Symphytum asperum Joseph P. Tracy 1933-6-25 12629 Humboldt around Humboldt Bay (Salmon Creek Valley); Northern Coast Ranges, , Salmon Creek Valley 30 Comment
  UCD120749  Symphytum uplandicum T. C. Fuller 1961-9-28 7047 Humboldt Iverson prop., Arcata Bottoms, 0.5 mi. s. of the Mad River, 0.75 mi. w. of Hwy 101, 2 mi. n. of Arcata. Comment
  HSC21151  Synthyris reniformis D. E. Anderson 1963-3-23 2399 Humboldt Bald Mtn. Rd. Comment
  SD39584  Tanacetum camphoratum Charlotte Hoak 1931-7-15 Humboldt Eureka Comment
  CDA8893  Tanacetum camphoratum K. Neander, Gordon Leppig, Sylvia Leppig 1998-5-25 789 Humboldt Big Lagoon State Park, between ocean and Big Lagoon. Comment
  HSC32945  Tauschia kelloggii Thomas W. Nelson, James Nelson 1973-5-28 956 Humboldt McKeown Ranch N of Dinsmore Comment
  SDSU2029  Taxus brevifolia D. F. Howe 1965-8-10 4128 Humboldt 9.8 miles west of willowcreek on #299. 884 Comment
  UC54777  Taxus brevifolia Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5819 Humboldt Tinity Summit North Coast Ranges, Trinity Summit Comment
  HSC75801  Tellima grandiflora Bill Copeland 1980-7-2 355 Humboldt Near Snow Camp Creek 1311 Comment
  UC1198891  Tellima grandiflora Joseph P. Tracy 1949-6-6 18311 Humboldt ne of Hawkins Bar (Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  HSC20422  Tellima grandiflora D. A. Shally 1965-5-15 47 Humboldt Arcata, 1/4 mi. NE of HSC campus on Jolly Giant Creek Comment
  UC162828  Thalictrum occidentale Joseph P. Tracy 1905-4-2 2154 Humboldt now Arcata; Northern Coast Region, region about Humboldt Bay 0 Comment
  CAS-BOT-BC399767  Thalictrum polycarpum Alice Eastwood 1921-7-21 10669 Humboldt Vanduzen [Van Duzen] River, on the road Comment
  CHSC10101  Thermopsis macrophylla D. E. Anderson 1965-5-15 36926 Humboldt About 7 miles north of Hoops on Bloody Camp Prairie road. Comment
  HSC103943  Thermopsis macrophylla var. venosa Lisa Hoover 1996-5-29 133 Humboldt Six Rivers National Forest; On ridge above Fish Lake 634 Comment
  NY185794  Thlaspi californicum V. Rattan 06 1882 s.n. Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  UC162645  Thlaspi montanum var. montanum Joseph Burtt Davy and Walter C. Blasdale 1899-6-21 5736 Humboldt Hupa North Coast Ranges, , Hupa (Supply Creek) Comment
  POM299149  Thuja plicata H. E. Parks 1932-7-25 1139 Humboldt Camp 21 , Hammond Lumber Company, Trinidad 152 Comment
  UC1225754  Thysanocarpus curvipes Joseph P. Tracy 1948-5-31 18005 Humboldt Harris 762 Comment
  OBI33243  Tiarella trifoliata var. unifoliata David J. Keil 1983-7-1 17257 Humboldt Along Bull Crk Flats Rd 1.4 mi W of US 101. Humboldt Redwoods State Park Comment
  UC858903  Tiarella trifoliata var. unifoliata Elizabeth Parsons Hawver Jun 1905-June 1915 Humboldt Carlotta Comment
  SEINET5733249 Image available Tiarella trifoliata var. unifoliata Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6107 Humboldt From California 299 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork in the road. Take the lefthand road ( leading to Waterman Ridge, Zeigler Point) and travel 6.7 miles down this road to another fork in the road. Take the right fork (away from the road leading to Waterman Ridge and Willow Creek). On this road (7NO4), travel 1.5 miles to another fork; continue on 7NO4(the left fork) for 7.4 miles. At this point, take 7NO4, the road to Groves Prarie. The collection site is a short distance up this road.; Groves Prairie Comment
  SEINET6168278  Tiarella trifoliata var. unifoliata J. P. Tracy 1907-6-20 2567 Humboldt Immediate vicinity of Eureka Comment
  UC30084  Tofieldia occidentalis subsp. occidentalis Mrs. M. H. Manning Aug 1899 Humboldt Comment
  HSC44676  Tolmiea diplomenziesii Brad Klipfel 1973-7-15 214 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC55632  Tolmiea diplomenziesii Overton, Butler 1979-7-24 9634 Humboldt Near Titlow Hill, close to the town of Willow Creek 1250 Comment
  HSC56107  Tolmiea diplomenziesii G. L. Clifton 1979-7-31 11858 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  SACT002419  Torresia macrophylla V. Barnes 1959-1 Humboldt Comment
  HSC99525  Torreyochloa pallida var. pauciflora K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 188 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UCD93242  Torreyochloa pallida var. pauciflora H. S. Yates 1914-6-15 438 Humboldt Buckeye Mts. 883 Comment
  JEPS63914  Toxicodendron diversilobum W. L. Jepson 1932-7-27 16430 Humboldt on way to Bull Creek Dyerville Comment
  JEPS4746  Tracyina rostrata Joseph P. Tracy 1930-6-15 8762 Humboldt Dobbyn Creek 152 Comment
  RSA0001653  Tracyina rostrata Joseph P. Tracy 1916-6-20 4735 Humboldt Southeastern Humboldt county. Alder Point on Eal River. 305 Comment
  HSC95824  Trientalis latifolia Kevin Thomas 2004-4-26 16 Humboldt Jacoby Creek Rd. Comment
  HSC28131  Trientalis latifolia J. D. Ackerman 1973-5-6 44 Humboldt 3 mi. N of Weott Comment
  UC495670  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1932-5-1 9894 A Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  JEPS65949  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1932-5-10 9940 Humboldt 3 mi s Point of Cape Mendocino (sw slopes fronting the ocean); Northern Coast Ranges Comment
  UC1223393  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1948-5-31 17989 Humboldt near Harris (West side of top of Spruce Grove Ridge) 762 Comment
  UC1223472  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1943-5-23 17426 Humboldt e Redwood Creek (on Trinity Highway); Berry's Mountain Comment
  UC1223509  Trifolium barbigerum Joseph P. Tracy 1936-6-9 14883 Humboldt Bear River Ridge 609 Comment
  UC33444  Trifolium barbigerum W. C. Blasdale 1896-5-31 Humboldt Eureka Comment
  HSC100528  Trifolium bifidum Carl C. Marshall Jun 1885 33 Humboldt Bear River. Comment
  UC249524  Trifolium bifidum var. bifidum Joseph P. Tracy 1922-4-30 5992 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  RSA168900  Trifolium dichotomum Joseph P. Tracy 1943-5-23 17426 Humboldt Trinity HIghway, east of Redwood Creek; Berrys Mountain. Comment
  HSC14995  Trifolium dubium J. W. Johnson 1962-4-18 1246 Humboldt Arcata, Mad River County Park Comment
  CDA27949  Trifolium fucatum T. C. Fuller 1958-6-17 1720 Humboldt Petrolia, Lower Mattole. 0 Comment
  UC1197022  Trifolium fucatum Joseph P. Tracy 1906-6-10 2470 Humboldt nw slope Wragletown (lower foot); Northern Coast Ranges 152 Comment
  UCR84716  Trifolium incarnatum Kathy Harper 1992-5-14 s.n. Humboldt North Coast Range, State Hwy 36 just north of the south fork of the Van Duzen River 762 Comment
  HSC59064  Trifolium incarnatum Thomas Wood 1979-4-6 95 Humboldt On Hwy. side W of 2nd bridge overpass from Eureka, on Gunther Island Comment
  HSC69635  Trifolium incarnatum R. Kalal 1980-5-18 23 Humboldt Along Hwy. 101 11 Comment
  SDSU5282  Trifolium incarnatum D. F. Howe 1969-6-3 4623 Humboldt 13 miles north of Orick on # 101. Comment
  HSC1860  Trifolium longipes subsp. oreganum J. P. Tracy 1927-6-12 8122 Humboldt Horse Mtn. 1524 Comment
  HSC96259  Trifolium longipes subsp. oreganum Laurel Goldsmith, Wanda Naylor 2005-6-3 3 Humboldt 19.3 mi. S of Hwy. 299 on Titlow Hill Rd. 1240 Comment
  HSC95079  Trifolium macraei Andrea Pickart 2002-7-3 156 Humboldt Lanphere Dunes: Big Dune, Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 0 Comment
  UC495660  Trifolium macraei Joseph P. Tracy 1927-6-8 8114 Humboldt Trinidad; Northern Coast Ranges, Trinidad 15 Comment
  UC1223358  Trifolium macraei Joseph P. Tracy 1933-5-20 12222 Humboldt s point of cape (near ocean shore); Cape Mendocino 3 Comment
  HSC22536  Trifolium microcephalum D. E. Anderson, J. P. Smith 1970-5-10 5057 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  HSC7238  Trifolium microcephalum J. R. Woodside 1963-5-19 2 Humboldt 1 1/4 mi. N of Fairhaven Comment
  HSC79459  Trifolium microcephalum Kenneth Clark 1980-4-18 591 Humboldt Shelter Cover, along access trail to Dead Man's Gulch 107 Comment
  UC1197540  Trifolium microcephalum Joseph P. Tracy 1911-7-10 3495 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  UC1197548  Trifolium microcephalum Joseph P. Tracy 1932-5-15 10056 Humboldt 5 mi above mouth of Smith River (at crossing of Roosevelt Hwy); Northern Coast Ranges 30 Comment
  UC1197551  Trifolium microdon Joseph P. Tracy 1932-5-1 9892 Humboldt Garberville vicinity Northern Coast Ranges 121 Comment
  UC1197500  Trifolium obtusiflorum Joseph P. Tracy 1932-6-14 10153 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  RSA273375  Trifolium oreganum Thomas W. Nelson, Jane P. Nelson 1976-6-15 2711 Humboldt Along old trail from lookout to Blocksburg 1555 Comment
  HSC38329  Trifolium repens Peter Sorensen 1976-5-29 Humboldt King Salmon Comment
  UC33492  Trifolium repens Joseph Burtt Davy and Walter C. Blasdale 1899-6-15 5536 Humboldt near Scotia Comment
  HSC77397  Trifolium repens C. J. Thomas 1983-5-9 30 Humboldt 23 Comment
  JEPS4134  Trifolium variegatum var. variegatum Joseph P. Tracy 1929-5-5 8573 Humboldt Miranda Northern Coast Ranges, South Fork Eel River 121 Comment
  UC1197535  Trifolium willdenovii J. P. Tracy 1901-4-24 1038 Humboldt Eureka vicinity 0 Comment
  UC1197039  Trifolium wormskioldii Joseph P. Tracy 1927-6-18 8174 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  HSC14178  Triglochin maritima D. E. Anderson 1962-5-10 2209 Humboldt Lanphere's Comment
  HSC59060  Triglochin maritima Thomas Wood 1979-5-4 154 Humboldt Big Lagoon Bog, N side, between the bog and the sea 0 Comment
  POM319421  Triglochin maritima Patricia Wilder 1968-8-21 4374 Humboldt Big Lagoon Park, just west of U.S. 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 15 Comment
  HSC101807  Trillium albidum Kjirsten A. Wayman 2012-4-1 305 Humboldt Hoopa, 0.3 miles up Bair Road, near Supply Creek 168 Comment
  UC1197808  Trillium albidum Joseph P. Tracy 1930-8-3 9152 Humboldt lower foothills of n.w. slope Buck Mt. 762 Comment
  HSC101814  Trillium kurabayashii Kjirsten A. Wayman 2012-5-4 315 Humboldt Bald Hills Road, 19 mi. SE of Hwy 101, N 41.14003 deg. W 123.85954 deg. 916 Comment
  CAS-BOT-BC133399  Trillium ovatum Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC15699  Trillium ovatum D. E. Anderson 1962-2-23 1923 Humboldt Grove E of HSC campus Comment
  HSC48827  Trillium ovatum Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 27 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  HSC71798  Trillium ovatum Gail Newton 1980-6-16 169 Humboldt Near Monks Camp. 1097 Comment
  UC1197823  Trillium ovatum J. P. Tracy 1901-3-31 999 Humboldt immediate vicinity of Eureka Eureka 0 Comment
  UC1541274  Trillium ovatum Harold E. Parks 1933-1 Humboldt Trinidad, Spruce Cove Comment
  RSA168951  Trillium ovatum Joseph P. Tracy 1950-4-20 18613 Humboldt 1 mile west of Dinsmores on Van Duzen River. Comment
  UC1197816  Trillium ovatum Joseph P. Tracy 1930-7-16 8967 Humboldt forest near McKay Camp McKay Camp; S. Fork Mt. 1676 Comment
  CAS-BOT-BC521320  Trillium rivale J. H. Thomas 1949-6-12 897 Humboldt 2 miles west of Matins Ferry on road to Orick. Comment
  CDA20454  Triphysaria eriantha subsp. eriantha P. Haggard 2003-5-11 PDR P 070982 Humboldt Northwestern California; around Humboldt Bay. 0 Comment
  HSC20851  Triphysaria eriantha subsp. eriantha R. T. Forester 1963-3-2 26 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  CHSC31269  Triphysaria eriantha subsp. rosea Mark Stopher 1980-4-2 45 Humboldt In sand dunes on Samoa Oeninsula near Humboldt Bay. 4 Comment
  UC1222443  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1935-5-25 13851 Humboldt Fort Seward 106 Comment
  SBBG68601  Triphysaria versicolor subsp. faucibarbata S. W. Hutchinson -Apr-1927 106 Humboldt Humboldt County [no specific locality] 30 Comment
  JEPS10443  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1944-5-14 17467 Humboldt Eureka 6 Comment
  UC1198042  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1936-6-6 14862 Humboldt Eureka 6 Comment
  CAS-BOT-BC199620  Trisetum canescens Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  CAS-BOT-BC199622  Trisetum canescens Joseph P. Tracy 1932-7-16 10614 Humboldt At Corral Prairie 1524 Comment
  CAS-BOT-BC199623  Trisetum canescens H. E. Parks; Joseph P. Tracy 1934-6-27 11074 Humboldt Grouse Mt. 1432 Comment
  POM126097  Trisetum canescens Joseph P. Tracy 1903-5-22 1877 Humboldt Alder Point on Eel River, in woods. Comment
  RSA129125  Trisetum canescens H. S. Yates 1936-6-17 5704 Humboldt Lower N.W. slope of Buck Mountain 793 Comment
  UC187232  Trisetum canescens J. P. Tracy 1903-5-22 1877 Humboldt Alder Point Eel River (on Eel River) 152 Comment
  UC212882  Trisetum canescens Joseph P. Tracy 1919-5-31 5157 Humboldt near Willow Creek (hill slopes at w side of Trinity River); Northern Coast Ranges, Trinity River 152 Comment
  UCD93899  Trisetum cernuum Harley P. Chandler 1901-5-1 1176 Humboldt Humboldt Bay. 30 Comment
  CAS-BOT-BC519141  Triteleia hyacinthina Tom Craig 1941-7-2 s.n. Humboldt Near Yager Comment
  UC666897  Triteleia laxa Joseph P. Tracy 1927-6-26 8223 Humboldt on hillsides near ocean; Stone Lagoon 30 Comment
  UC144101  Triteleia laxa Joseph P. Tracy 1909-7-31 3035 Humboldt Knneland Prairie Northern Coast Ranges 762 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
  UC422834  Triteleia laxa P. E. Goddard 1907-5-29 b. 110 Humboldt Van Duzen Comment
  CDA2565  Triticum aestivum Gordon Leppig, Sylvia Leppig, K. Neander 2000-4-14 1293 Humboldt East of Community Center parking lot, Arcata. Comment
  HSC49015  Tropaeolum majus Patricia Shesgreen 1978-8-5 129 Humboldt Along side road on 16th St., 100 yds. E of Union St., Arcata. Comment
  SEINET3875748  Tsuga heterophylla K. S. Erdman 1970-6-18 4798 Humboldt Cal-Barrow Road, 3 miles E. of US 101 at boundary of Prairie Creek State Park (redwood National Park).; 0 Comment
  HSC93497  Typha latifolia Gordon Leppig 1998-6-8 899 Humboldt Arcata Marsh and Wildlife Sanctuary, SW side of pond. 2 Comment
  UCD108651  Ulex europaeus E. N. Gladish 1957-8-12 49 Humboldt Five miles southeast of Maple Creek. Comment
  UC1196283  Umbellularia californica Joseph P. Tracy 1920-10-24 5405 Humboldt North Fork of Mad River, at Camp Bauer North Fork of Mad River; Northern Coast Ranges, North Fork of Mad River 60 Comment
  UC915720  Umbellularia californica W. L. Jepson 1903-6-13 36 Humboldt Briceland Comment
  UC1197771  Vaccinium cespitosum J. P. Tracy 1906-4-22 2415 Humboldt immediate vicinity Eureka; , Ricks Prairie 0 Comment
  CAS-BOT-BC199319  Vaccinium ovatum L. B. Kildale 1930-9-9 10408 Humboldt Bald Mountain 914 Comment
  HSC59436  Vaccinium ovatum Kenneth Clark 1979-3-31 19 Humboldt 0.1 mi. E of end of Granite Ave, Arcata 30 Comment
  UC1193357  Vaccinium ovatum R. H. Neuns 1950-7-13 133 Humboldt 3 mi s Alder Point (Quad. 29D2) 548 Comment
  UC902048  Vaccinium ovatum Joseph P. Tracy 1948-10-24 18257 Humboldt near Fruitland 304 Comment
  HSC7924  Vaccinium parvifolium P. Markle 1962-5-3 18 Humboldt Arcata Community behind HSU campus 30 Comment
  RSA303471  Vaccinium parvifolium J. R. Shevock 1972-3-26 1470 Humboldt Along Hwy 299. 366 Comment
  HSC57994  Vancouveria hexandra G. L. Clifton, Griswold 1979-7-31 11757 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC75566  Vancouveria hexandra Griswold, Butler 1979-7-11 6902 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  POM118508  Vancouveria hexandra Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  HSC3386  Vancouveria hexandra D. B. Bader 1963-5-15 50 Humboldt .25 mi. up Jolly Giant Creek from HSU men's dormitory Comment
  HSC3387  Vancouveria hexandra N. D. Dennis 1965-5-2 37 Humboldt 2 mi. N of Trinidad on Hwy. 101 Comment
  UC303001  Vancouveria planipetala Joseph P. Tracy 1926-5-2 7420 Humboldt Trinity River Valley near the South Fork; Northern Coast Ranges, Trinity River Valley nr South Fork 182 Comment
  RSA438032  Vancouveria planipetala Miss Hutchinson 1927-7-1 s.n. Humboldt [Unspecified] Comment
  UC1222354  Vancouveria planipetala Joseph P. Tracy 1950-7-2 18966 Humboldt 6 mi ne Hawkins Bar (Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  CAS-BOT-BC391321  Velezia rigida Harley P. Chandler 1901-6-1 1306 Humboldt North Coast Ranges. Hupa Indian Reservation 152 Comment
  HSC32234  Velezia rigida J. O. Sawyer 1970-6-24 2248 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC73644  Veratrum californicum var. californicum M. A. Baker 1980-7-22 3112 Humboldt Near Grogan Hole. 1676 Comment
  HSC57096  Veratrum insolitum Overton, Butler 1979-7-24 9820 Humboldt Near Black Rock, close to the town of Willow Creek 1463 Comment
  UC1222773  Verbascum blattaria Joseph P. Tracy 1950-7-9 18980 Humboldt along Trinity Highway Willow Creek Canyon Comment
  HSC55335  Veronica americana Terry Griswold, Marvin Butler 1979-7-12 7179 Humboldt Near Groves Prairie, close to the town of Willow Creek 1256 Comment
  UC582550  Veronica americana Joseph P. Tracy 1937-7-2 15389 Humboldt ne of Hawkins Bar (Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC175788  Veronica arvensis Joseph P. Tracy and Ernest B. Babcock 1912-5-12 3634 Humboldt Eureka; Northern Coast Region, Eureka 0 Comment
  UC147891  Veronica peregrina subsp. xalapensis J. P. Tracy 1910-5-22 3136 Humboldt immediate vicinity of Eurika 0 Comment
  HSC21209  Veronica persica Elrid H. Spinas 1948-5-22 35 Humboldt Horse Mtn. Comment
  CHSC53307  Veronica scutellata L. P. Janeway 1984-5-16 795 Humboldt On the North Spit of Humboldt Bay; on the west side of Samoa Rd and ca 1/4 mile northwest of the boat ramp. 3 Comment
  UC147902  Veronica serpyllifolia subsp. humifusa J. P. Tracy 1909-5-2 2958 Humboldt immediate vicinity of Eureka 0 Comment
  JEPS12698  Viburnum ellipticum P. E. Goddard 1908-7-20 Humboldt 1 mi s Harris Comment
  HSC82109  Vicia americana var. americana Thomas W. Nelson, Jane P. Nelson 1980-5-25 5252 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  UC1197462  Vicia americana var. americana Joseph P. Tracy 1933-6-24 12613 Humboldt Big Lagoon 91 Comment
  RSA46826  Vicia americana var. americana Doris K. Kildale 1926-3-26 1643 Humboldt Old Fortuna Rd Comment
  UC1222598  Vicia americana var. americana Joseph P. Tracy 1946-6-15 17569 Humboldt w of Redwood Creek (on Trinity Highway, at Green Point); Green Point 457 Comment
  HSC15270  Vicia gigantea W. F. Nickel 1965-5-15 Humboldt 1/4 mi. E of Arcata on road to Arcata Reservoir Comment
  HSC15260  Vicia hirsuta Harvey Doerksen 1962-5-8 19 Humboldt 3 mi. W of Blue Lake, fork Mad River and Essex Creek Comment
  UC1222589  Vicia hirsuta Joseph P. Tracy 1943-7-1 17428 Humboldt Eureka; 7th and I Streets, vacant lot Comment
  UC1222590  Vicia hirsuta Joseph P. Tracy 1944-6-10 17474 Humboldt Eureka Comment
  HSC23675  Vicia sativa subsp. nigra Tim Baroni 1971-6-25 49 Humboldt Comment
  JEPS66196  Vicia tetrasperma Joseph P. Tracy 1916-5-31 4688 Humboldt Stitz Creek Northern Coast Ranges Eel River (along Eel River from South Fork to Scotia) 60 Comment
  UC1562619  Vicia tetrasperma Barbara Ertter with Thomas J. Delendick 1987-5-16 6912 Humboldt ca 8 mi e Arcata (Hwy 299 roadside, 9.5 mi w of Lord Ellis summit) Comment
  HSC12434  Vinca major Gary J. Stebbins 1970-2-18 8 Humboldt Growing in waste lot within city limits of Arcata. 61 Comment
  HSC3229  Vinca major N. R. Waite 1965-5-18 35 Humboldt Along Hwy. 101, W of Humboldt State College campus. Comment
  HSC3231  Vinca major W. F. Nickel 1965-5-15 Humboldt On Hwy. at N stoplight in Arcata. Comment
  UC1761603  Viola adunca C. V. Piper 1921-5-22 Humboldt Eureka Comment
  HSC100696  Viola glabella Carl C. Marshall Jun 1886 278 Humboldt Trinity Summit. Comment
  HSC73155  Viola glabella M. A. Baker 1980-5-18 1299 Humboldt Near Black Mtn. 1006 Comment
  UC19284  Viola glabella Harley P. Chandler June, 1901 1285 Humboldt Hupa Indian Reservation; North Coast Ranges 1097 Comment
  CAS-BOT-BC536491  Viola glabella Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC21784  Viola glabella Elrid H. Spinas 1948-5-15 7 Humboldt Horse Mtn.; 1 mi. off Hwy. 299 Comment
  HSC71155  Viola glabella Thomas W. Nelson 1977-6-15 3428 Humboldt Along FS 6N01, just N of Clear Lake 1372 Comment
  UC35267  Viola glabella W. C. Blasdale 1896-6-5 Humboldt Fitzgerald's Comment
  HSC33151  Viola hallii Thomas W. Nelson, Jane Cole, Brad Klipfel 1974-5-8 1245 Humboldt Horse Mtn. area, W of microwave tower 1220 Comment
  SEINET6942419  Viola hallii Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, near serpentine outcrops, about 4 miles southeast of Kneeland. Comment
  HSC101993  Viola macloskeyi M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 892 Humboldt Patterson Meadows 1555 Comment
  HSC103112  Viola macloskeyi M. Mesler 2010-7-15 835 Humboldt Near Blake Mtn, FS rd N01 off rd 4N12 Comment
  UC1198453  Viola ocellata Joseph P. Tracy 1913-6-22 4266 Humboldt opposite Buck Mountain (Dinsmore's Ranch, in Valley of Van Duzen River); Northern Coast Ranges, in Valley of Van Duzen River 762 Comment
  UC275333  Viola ocellata Joseph P. Tracy 1924-3-30 6629 Humboldt 3 mi w of Bridgeville (apparently its western limit, Van Duzen River (not in redwood belt)); Northern Coast Ranges, Van Duzen River 182 Comment
  HSC49627  Viola odorata R. York 1979-4-13 218 Humboldt College Cove, 1 mi N of Trinidad Comment
  CAS-BOT-BC270200  Viola palustris Doris K. Kildale 1926-3-20 1536 Humboldt Big Lagoon Comment
  JEPS50373  Viola praemorsa subsp. praemorsa Joseph P. Tracy 1930-6-8 8730 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC49693  Viola sempervirens J. O. Sawyer 1977-4-23 2842 Humboldt Dagsaw Spring on road to Onion Mtn. Comment
  UC1198436  Viola sempervirens Joseph P. Tracy 1933-3-26 10938 Humboldt Big Lagoon 30 Comment
  CAS-BOT-BC203051  Vitis californica Doris K. Kildale 1926-7-25 2431 Humboldt Briceland Bridge 1/2 mi. west of Garberville Comment
  HSC70759  Vulpia bromoides R. York 1980-5-17 524 Humboldt Near Le Perron Peak 792 Comment
  HSC89549  Vulpia bromoides M. Roantree 1985-5-7 38 Humboldt W side of Trinidad Head, along trail. Comment
  HSC90685  Vulpia bromoides Gail Newton 1982-6-5 3587 Humboldt Elk River Wildlife Area, Eureka. Comment
  HSC97933  Vulpia microstachys var. ciliata Cara Witte 2007-6-19 298 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 Comment
  CAS-BOT-BC183940  Vulpia microstachys var. microstachys Doris Kildale Gillespie 1931-6-7 10605 Humboldt South Fork Mt. Black Lookout 1726 Comment
  UCD94427  Vulpia myuros Collector unknown 1923-7-12 26 Humboldt Briceland. Comment
  UC1145202  Vulpia myuros var. hirsuta Joseph P. Tracy 1936-6-17 14959 Humboldt nw slope Buck Mountain (Burr Valley); Burr Valley 1066 Comment
  CAS-BOT-BC128814  Whipplea modesta L. R. Abrams 1916-7-11 6016 Humboldt Mouth of Grizzly Creek on Van Duzen River - Redwood Forest Comment
  HSC41845  Whipplea modesta N. G. Sugihara 1977-4-23 14 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC44524  Whipplea modesta Brad Klipfel 1973-7-1 132 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC38521  Wyethia angustifolia D. E. Anderson, J. P. Smith 1971-6-18 - 1077 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  HSC58331  Wyethia angustifolia Overton, Butler 1979-8-2 12632 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC63840  Wyethia angustifolia M. A. Baker 1979-6-26 908 Humboldt S facing ridge Comment
  UC169296  Wyethia angustifolia Joseph P. Tracy 1912-7-21 3755 Humboldt Alton Northern Coast Region, Alton 30 Comment
  CAS-BOT-BC382927  Wyethia angustifolia D. E. Breedlove 1961-7-4 654 Humboldt On U.S. Highway 299, 13.7 miles west of Willow Creek 731 Comment
  HSC82417  Wyethia angustifolia Thomas W. Nelson 1979-7-11 5038 Humboldt Along trail from Grogan's Hole to North Trinity Mtn., from Grogan's Hole to summit. Comment
  UC1541467  Wyethia longicaulis H. E. and S. T. Parks May 1930 740 Humboldt Laribee Valley Comment
  RSA441183  Xanthium strumarium M. B. Dunkle 1936-8-22 4856 Humboldt Williams Grove, Eel River. 213 Comment
  HSC74331  Xerophyllum tenax Gail Newton 1980-6-16 147 Humboldt Near Monks Camp 1097 Comment
  LA17036  Xerophyllum tenax C. B. Wolf; 1934-6-30 5840 Humboldt 6 mi. from Shelter Cove on rd to Briceland near summit of grade Comment
  SEINET3356277 Image available Xerophyllum tenax Joseph P. Tracy 1937-8-15 15665 Humboldt French Camp Comment
  HSC36103  Zantedeschia aethiopica Jim Pollard 1973-11-28 32 Humboldt Near Westwood Village Apartments Comment
  HSC43850  Zeltnera muehlenbergii Maralyn O'Meara 1974-7-17 557 Humboldt Kneeland Comment
  HSC67968  Zeltnera muehlenbergii J. P. Smith 1973-5-26 6860 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC22492  Zeltnera muehlenbergii S. V. Thompson 1967-7-24 26 Humboldt N of Arcata, edge of Redwood Forest Comment
  HSC8414  Zeltnera muehlenbergii J. P. Tracy 1938-7-18 16085 Humboldt Fickle Hill, 4 mi. S of Arcata 366 Comment
  HSC31209  Zigadenus micranthus D. E. Anderson 1972-6-20 5741 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  CAS-BOT-BC532738  Zigadenus micranthus Harold E. Parks; Joseph P. Tracy 1934-6-27 11041 Humboldt Horse Mountain 1432 Comment
  UC275516  Zigadenus micranthus var. micranthus Joseph P. Tracy 1924-7-4 6521 Humboldt Valley South Yager Creek; Northern Coast Ranges, Valley of South Yager Creek 762 Comment



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