Search Results — 2000 specimen records retrieved (1419 records with coordinates)
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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  HSC55196  Abies concolor G. L. Clifton, Griswold 1979-8-2 12292 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC72979  Abies concolor Gail Newton 1980-7-14 1514 Humboldt Near Deadman Ridge 1097 Comment
  HSC73545  Abies concolor Gail Newton 1980-7-14 1470 Humboldt Near Last Chance Ridge. 1219 Comment
  HSC13030  Abies grandis D. Santana, C. Kline Oct 1970 3 Humboldt HSC Campus Comment
  UC1173736  Abies grandis Joseph P. Tracy 1939-5-30 16298 Humboldt 1 mi below Dinsmore's (along bank of Van Duzen River); Van Duzan River 731 Comment
  CAS-BOT-BC73483  Abies magnifica Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mts. 1828 Comment
  HSC12834  Abies magnifica Thomas W. Nelson, Wilbur Peterson 1970-12-2 296 Humboldt HSC Campus, W side of tennis court Comment
  SEINET10537240  Abronia Mary Susan Taylor 1990-8-22 Taylor 6084 Humboldt Samoa Recreation Area on Samoa Peninsula, Staging Area, Eureka. Coastal scrub in ORV area. Comment
  HSC59462  Abronia latifolia M. A. Ericksen 1979-5-18 295 Humboldt Samoa Dunes, .5 mi. S of Simpson Timber Company plant entrance Comment
  HSC16130  Abronia latifolia I. L. Wiggins 1932-7-19 5888 Humboldt Near Clam Beach, 8 mi. N of Arcata Comment
  HSC69787  Abronia latifolia R. Kalal 1979-5-27 35 Humboldt Along Samoa Blvd. 3 Comment
  HSC37503  Abronia umbellata var. breviflora J. D. Ackerman 1975-8-2 624 Humboldt N Spit of Humboldt Bay, 0.25 mi. N of N Jetty, U.S. Coast Guard Station Comment
  HSC75231  Abronia umbellata var. breviflora D. M. Gordon 1982-9-23 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC104082  Acacia melanoxylon J. St. Marie 2002-3-24 Humboldt Manila; Peninsula Drive; grove adjacent to maritime forest Comment
  HSC2783  Acer circinatum L. J. Coombes 1964-5-16 33 Humboldt Camp Bowers, 3 mi. SE of Blue Lake 1524 Comment
  SEINET3026049  Acer circinatum John P. Young 1921-9-18 s.n. Humboldt Orick Comment
  UC165811  Acer circinatum J. P. Tracy 1909-6-13 2997 Humboldt Mad River near Blue Lake; Mad River near Blue Lake 30 Comment
  CAS-BOT-BC330606  Acer glabrum var. glabrum Carl B. Wolf 1937-9-13 9336 Humboldt North Coast Range, Clear Lake between Horse Mt. & Grouse Mt. 1524 Comment
  HSC58129  Acer glabrum var. torreyi Gilbert Muth 1979-8-1 12124 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  CAS-BOT-BC28585  Achillea millefolium Doris Kildale Gillespie 1931-6-7 s.n. Humboldt South Fork Mountain, Blake Lookout 1726 Comment
  HSC37962  Achillea millefolium Peter Sorensen 1976-6-12 Humboldt Woodley Island Comment
  SD17523  Achillea millefolium Edith A. Purer 1932-7-27 4133 Humboldt Near Arcata Comment
  SEINET6700495 Image available Achillea millefolium H. E. Parks, S. T. Parks 24246 Humboldt Egg Point, Trinidad 122 Comment
  RSA416222  Achillea millefolium J. P. Smith, Thomas W. Nelson 1977-6-30 9221 Humboldt Samoa Peninsula just east of the drag strip. Comment
  UC581788  Achillea millefolium Joseph P. Tracy Jul 16 1930-Jul 19 1930 9043 Humboldt near Blake Lookout; North Coast Ranges, South Fork Mountain 1737 Comment
  HSC73767  Achlys triphylla Gail Newton 1980-7-20 1609 Humboldt Near Bell Swamps 1426 Comment
  HSC3330  Achlys triphylla Francis Winter 1960-4-23 Humboldt 1 mi. S of Simpson Creek, Korbel-Maple Creek Rd. 213 Comment
  UC34152  Achnatherum lemmonii Joseph Burtt Davy 1899-6-8 5348 Humboldt Harris Comment
  RSA167290  Achnatherum lemmonii var. lemmonii Joseph P. Tracy 1951-6-26 19563 Humboldt Halfway between Snow Camp & Twin Lakes (at Preston's old gate near road) Comment
  HSC98308  Acmispon micranthus D. B. Bader 1963-3-1 22 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101 Comment
  CHSC84721  Aconitum columbianum var. columbianum L. P. Janeway 2003-7-26 7921 Humboldt High North Coast Ranges. South side (above) Road 5N04, 0.5 km northeast of the top of Grouse Mountain. 1554 Comment
  HSC54873  Aconogonon davisiae G. L. Clifton, Griswold 1979-7-25 10842 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  JEPS60386  Actaea rubra W. L. Jepson 1932-7-29 16445 Humboldt Glenbrook Van Duzen R., Grizzly Flat Comment
  HSC58316  Adenocaulon bicolor Overton, Butler 1979-8-2 12604 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC40126  Adenocaulon bicolor Thomas W. Nelson, James Nelson 1976-7-28 3075 Humboldt Along small creek E of old road from Goat Mountain lookout to branch road of FS 2S08 N of Alder Springs. 1555 Comment
  RSA12438  Adenocaulon bicolor Carl B. Wolf 1934-7-2 5855 Humboldt 2 mi. from Bald Mt. on rd. to Korbel. 762 Comment
  RSA418957  Adenocaulon bicolor Lyman Benson 1927-7-11 226 Humboldt Weott Ranger Station, Seaward N Coast Mts. 61 Comment
  UC582522  Adenocaulon bicolor Joseph P. Tracy 1933-8-6 12940 Humboldt in shade of trees French Camp Ridge 1066 Comment
  UC249775 Image available Adiantum X tracyi Joseph P. Tracy 1924-9-16 6868 Humboldt Eureka 30 Comment
  UC197911  Adiantum jordanii Joseph P. Tracy 1914-5-14 4427 Humboldt Fort Seward; Northern Coast Ranges 121 Comment
  SEINET3823281 Image available Aesculus californica Joseph P. Tracy 1921-10-22 5978 Humboldt Bridgeville 305 Comment
  HSC74197  Agastache urticifolia M. A. Baker 1980-7-22 3126 Humboldt Near Grogan Hole. 1676 Comment
  UC577348  Agastache urticifolia Joseph P. Tracy 1932-7-13 10498 Humboldt Corral Prairie; Trinity Summit, Corral Prairie 1584 Comment
  RSA168824  Ageratina occidentalis Joseph P. Tracy 1950-7-31 19223 Humboldt In woods, Friday Ridge 1220 Comment
  UC1223124  Ageratina occidentalis Joseph P. Tracy 1950-7-31 19223 Humboldt Friday Ridge 1219 Comment
  HSC32220  Agoseris grandiflora J. O. Sawyer 1970-6-24 2241 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  SEINET11854997  Agoseris grandiflora J. P. Tracy 1950-1 19047 Humboldt Trinity River, E side, 1 mi N of mouth of Willow Creek Comment
  UC582751  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1936-6-17 14949 Humboldt nw slope Buck Mountain 792 Comment
  UC166072  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1911-7-12 3528 Humboldt near, in fields Blue Lake; Northern Coast Ranges 60 Comment
  UC164894  Agoseris grandiflora var. leptophylla J. P. Tracy 1904-7-4 2109 Humboldt immediate vicinity Eureka 0 Comment
  UC1199476  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1925-5-30 2700 Humboldt on grassy slopes McClellan Mountain; Northern Coast Ranges 822 Comment
  UC582739  Agoseris heterophylla var. heterophylla H. E. Parks and Joseph P. Tracy 1934-6-27 13261 Humboldt in open places Grouse Mt. 1432 Comment
  HSC32098  Agoseris retrorsa D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5703 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC40016  Agoseris retrorsa Thomas W. Nelson, Jane P. Nelson 1976-7-1 2919 Humboldt Along N side of Mt. Lassic (Signal Peak) 1738 Comment
  JEPS71135  Agrostis alba W. L. Jepson 1936-8-17 17923 Humboldt 2 1/2 mi s Fields Landing Comment
  HSC8829  Agrostis capillaris D. J. Wilder 1965-5-9 32 Humboldt Arcata, 151 G st. Comment
  HSC8779  Agrostis densiflora D. E. Anderson 1965-9-5 4073 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  RSA152379  Agrostis densiflora Joseph P. Tracy 1936-6-8 14873 Humboldt Trinidad 6 Comment
  RSA129586  Agrostis exarata H. S. Yates 1936-6-16 5664 Humboldt 1 mile S.W. of Samoa. Comment
  UC176586  Agrostis exarata J. P. Tracy 1900-9-2 933 Humboldt Immediate vicinity of Eureka 0 Comment
  UC184150  Agrostis exarata Joseph P. Tracy 1912-7-21 3785 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UCD52096  Agrostis exarata P. B. Kennedy 1928-7-16 s.n. Humboldt Sea Cliffe, near Trinidad. Comment
  CAS-BOT-BC139695  Agrostis gigantea J. P. Tracy 1902-7-4 1758 Humboldt Immediate vicinity of Eureka. 152 Comment
  HSC58751  Agrostis gigantea Overton, Butler 1979-7-24 9619 Humboldt Near Titlow Hill, close to the town of Willow Creek. 381 Comment
  HSC98744  Agrostis gigantea Cara Witte 2007-7-12 522 Humboldt Forest Service Road 5N10. Approximately 3 miles from intersection with Ammon Ridge Road. 1306 Comment
  UC1103526  Agrostis hallii Joseph P. Tracy 1912-7-31 3893 Humboldt nw slope Buck Mountain (Burr Valley); Northern Coast Ranges, nw slope Buck Mountain 1066 Comment
  UC576314  Agrostis hallii H. S. Yates 1936-6-17 5698 Humboldt lower nw slope Buck Mountain; South Fork Peak Quad., lower nw slope Buck Mountain 792 Comment
  UCD52557  Agrostis hallii P. B. Kennedy Date Unknown s.n. Humboldt Eureka. Comment
  HSC58802  Agrostis idahoensis G. L. Clifton, Griswold 1979-7-31 11678 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC212879  Agrostis idahoensis Joseph P. Tracy 1919-9-22 5268 Humboldt Trinity Summit Northern Coast Ranges, Trinity Summit 1828 Comment
  UC1103384  Agrostis microphylla J. P. Tracy 1900-7-22 898 1/2 Humboldt vicinity Eureka; vicinity Eureka 0 Comment
  UC36960  Agrostis microphylla Harley P. Chandler May, 1901 1253 Humboldt Redwood Belt North Coast Ranges, Redwood Belt 304 Comment
  SACT000139  Agrostis palustris S. Smith, Malcolm Nobs 1949-8-3 Humboldt Borders of irrigation ditch Comment
  UC526664  Agrostis scabra Joseph P. Tracy 1932-7-16 10608 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  BLMAR22  Agrostis stolonifera Brad Barr June, 1982 22 Humboldt King range, Spanish ridge Comment
  UCD56339  Agrostis stolonifera A. H. Murphy 1947-7-30 s.n. Humboldt 1.2 mile west of Hydesville, along the Rohnerville Road. Comment
  HSC58825  Agrostis thurberiana Walter Overton 1979-8-1 12399 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC104460  Aira caryophyllea Jeff Barrett 2009-4-1 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC34257  Aira caryophyllea A. Montalvo 1975-5-24 281 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC8858  Aira caryophyllea E. W. Styskel 1964-5-10 88 Humboldt 1.5 mi. SE of Redcrest along Hwy. 101 Comment
  RSA257505  Aira caryophyllea H. E. Parks, S. T. Parks 1936-06 5850 Humboldt Spruce Cove, Trinidad Comment
  RSA550893  Aira praecox R. F. Thorne 1965-8-9 35308 Humboldt Big Lagoon 3 Comment
  UC1198192  Allium campanulatum Joseph P. Tracy 1908-6 2807 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 304 Comment
  CAS-BOT-BC464487  Allium campanulatum Joseph P. Tracy 1932-7-12 10479 Humboldt Trinity Summit, Head of Brett Hole 1828 Comment
  RSA47172  Allium campanulatum Doris K. Kildale 1927-7-22 3815 Humboldt Lasseck s Peaks Comment
  SEINET4208044  Allium triquetrum Richard R. Halse 2013-3-28 8768 Humboldt Along U.S. Hwy. 101 ca 1.0 miles west of Orick.; 0 4 Comment
  UC666921  Allium unifolium Joseph P. Tracy 1932-5-22 10113 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  HSC99641  Allium validum T. Jimerson, J. Pageau 1979-8-10 736 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  RSA20803  Alnus incana subsp. tenuifolia C. B. Wolf 1937-8-13 9268 Humboldt North Coast Range, 12 mi. E. of Hoopa Valley on new road towards Trinity Summit. 1677 Comment
  CAS-BOT-BC170948  Alnus rhombifolia Joseph P. Tracy 1930-11-2 9243 Humboldt Camp Grant, along Eel River 60 Comment
  CHSC130  Alnus rubra A. Small 1953-4-1 Humboldt Near Ferndale. Comment
  HSC13115  Alnus rubra C. Kline, D. Santana Oct 1970 31 Humboldt HSC Campus Comment
  HSC59200  Alnus rubra Terry Roth 1979-5-24 76 Humboldt Union St. near 11th St. Comment
  HSC65052  Alnus rubra J. P. Smith, Steve Selva 1970-6-30 4115 Humboldt Comment
  OBI35881  Alnus rubra David J. Keil 1983-7-1 17290 Humboldt Between Ferndale and Bear River Ridge rd along Mattole Rd Comment
  HSC57668  Alnus viridis subsp. sinuata G. L. Clifton, Griswold 1979-7-25 10853 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC1103316  Alopecurus aequalis Joseph P. Tracy 1924-8-31 6851 Humboldt Klamath R. at Bluff Creek; Northern Coast Ranges, Klamath R. 91 Comment
  CDA28200  Alopecurus geniculatus A. A. Beetle, G. L. Stebbins, J. P. Tracy 1942-6-2 3458 Humboldt Loleta Swamp, S of Eureka. 0 Comment
  HSC8902  Alopecurus pratensis J. P. Tracy 1942-6-2 17096 Humboldt Alton. 30 Comment
  HSC2176  Ambrosia chamissonis H. E. Parks Aug 1941 24181 Humboldt Big Lagoon Comment
  HSC41293  Amelanchier pallida Brad Klipfel 1974-7-27 492 Humboldt Horse Mtn. Comment
  SEINET3917966  Ammophila arenaria Dziekanowski, Dunn; Bennett 1976-8-6 2504 Humboldt Collected in the vicinity of a state park on the beach opposite McKinleyville.; 0 Comment
  HSC12709  Anagallis arvensis Jana Kattenhorn 1970-10-28 147 Humboldt Mad River at the mouth of Lindsey Creek, N Bank Rd. off Hwy. 299 Comment
  HSC4623  Anaphalis margaritacea J. W. Johnson 1961-8-17 1018 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  HSC99574  Anaphalis margaritacea K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 239 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1372 Comment
  SEINET10475558  Anaphalis margaritacea Mary Susan Taylor 1975-4-12 Taylor 466 Humboldt Ca. 2000 yds E of Hwy 101, in Orick, by railroad tracks. Comment
  UC8883  Anemone deltoidea J. Burtt Davy 1899-6-13 5499 Humboldt Camp Grant; North Coast Ranges Comment
  UCR39823  Anemone oregana Dave Bjornbak, M. Mayer, Steve Meredith 1985-5-10 33 Humboldt Horse Mtn. Rd., 8 mi. south of 299 1143 Comment
  HSC92104  Anemone oregana var. oregana S. Morrissette, J. Williams, K. Kopper 1994-5-6 44 Humboldt W side of USFS Rd. 6N36, 1.0mi N of intersection with Titlow Rd. 1341 Comment
  HSC55757  Angelica arguta G. L. Clifton, Terry Griswold 1979-7-26 10295 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UC582660  Angelica genuflexa Joseph P. Tracy 1937-9-30 15690 Humboldt Dow's Prairie 60 Comment
  HSC36598  Angelica hendersonii Linda Barker, J. O. Sawyer, Thomas W. Nelson 1975-9-4 1308 Humboldt Megwill Point on Elk Head, N of Trinidad, in Trinidad State Beach 15 Comment
  UC183691  Angelica hendersonii Joseph P. Tracy 1912-7-21 3764 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  UC562549  Angelica hendersonii Joseph P. Tracy 1930-7-21 8896 Humboldt Cape Mendocino, south of point of the Cape Cape Mendocino 3 Comment
  UCD127226  Angelica hendersonii Joseph DiTomaso 1980-6-29 1634 Humboldt north side of Elkshead. 2 miles north of Trinidad. Comment
  UC642351  Angelica lucida Joseph P. Tracy 1938-7-15 16078 Humboldt Mouth of Eel River Eel River 6 Comment
  HSC70545  Angelica tomentosa M. A. Baker 1980-7-22 3080 Humboldt Near Salmon Mtn. 1820 Comment
  HSC99547  Angelica tomentosa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 212 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC1197374  Angelica tomentosa Joseph P. Tracy 1939-8-16 16411 Humboldt Horse Mountain 1432 Comment
  UC642300  Angelica tomentosa Joseph P. Tracy 1939-8-16 16409 Humboldt Horse Mountain 1432 Comment
  HSC98637  Angelica tomentosa Cara Witte 2007-7-25 578 Humboldt Forest Service Road 5N10. Approximately 1/2 mile from intersection with Forest Service Road 5N41. 1283 Comment
  HSC67890  Anisocarpus madioides J. P. Smith 1973-5-26 6853 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  CAS-BOT-BC69103  Antennaria media Joseph P. Tracy 1935-7-24 14202 Humboldt Trinity Summit. Near ranger station. 1828 Comment
  UC582647  Antennaria rosea Joseph P. Tracy 1935-7-24 14169 1/2 Humboldt Trinity Summit 1828 Comment
  HSC12590  Anthemis cotula C. Kline 1970-10-28 53 Humboldt North Bank Rd., 3 mi. W of Blue Lake, Mad River gravel bottoms Comment
  CAS-BOT-BC289124  Anthoxanthum occidentale Doris K. Kildale 1926-3-28 1671 Humboldt Redwood Creek at Berry's 289 Comment
  HSC10095  Anthoxanthum occidentale D. W. C. Humboldt Mattole Area Comment
  HSC8951  Anthoxanthum odoratum E. W. Styskel 1963-5-19 43 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  HSC96543  Anthoxanthum odoratum Gordon Leppig 1997-8-3 647 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  RSA129298  Anthoxanthum odoratum H. S. Yates 1936-6-16 5684 Humboldt Near Bayside 9 Comment
  UC922011  Anthoxanthum odoratum Joseph P. Tracy 1942-6-2 17101 Humboldt 2 mi n of Bridgeville 609 Comment
  UCD56641  Anthoxanthum odoratum G. Douglas Barbe; T. C. Fuller 1974-6-17 1848 Humboldt North Coast Rages, Eureka, at 707 'L' Street, behind CSAA (California State Automobile Assoc.) district office. Comment
  JEPS5352  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1935-10-13 14756 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC1198738  Aphanes occidentalis J. P. Tracy 1905-5-21 2184 Humboldt immediate vicinity Eureka 0 Comment
  UCD143195  Aphanes occidentalis Linda M. Barker 1976-4-30 1413 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  HSC73424  Aphanes occidentalis Robert Kirkpatrick, Doug Renwick 1981-4-3 147 Humboldt 2 mi. N of Coastguard Station on Samoa Blvd. 5 Comment
  HSC97622  Apocynum androsaemifolium Cara Witte 2007-6-19 301 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1393 Comment
  HSC18054  Aquilegia formosa var. formosa N. D. Dennis 1965-5-5 47 Humboldt 2 mi. N of Trinidad on Hwy. 101 Comment
  UC492254  Arabidopsis thaliana Joseph P. Tracy 1932-5-17 10091 Humboldt Trinity River Valley, at Willow Creek Willow Creek; Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  HSC39042  Arabis breweri var. breweri Thomas W. Nelson, Jane P. Nelson 1976-5-31 2659 Humboldt County line, S of meadow along 5E27 just N of its junction with 1S07 1524 Comment
  HSC74294  Arabis glabra M. A. Baker 1980-7-22 3099 Humboldt Near Grogan Hole. 1676 Comment
  HSC99596  Aralia californica Overton, Butler 1979-7-24 14090 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  RSA46725  Aralia californica Doris K. Kildale 1937-9-20 15375 Humboldt Hoopa Comment
  CAS-BOT-BC167258  Aralia californica Doris K. Kildale 1926-11-14 2860 Humboldt Stephen's Grove near Miranda Comment
  CAS-BOT-BC128699  Arbutus menziesii Doris K. Kildale 1927-4-17 3091 Humboldt Briceland Bridge 1/2 mile west of Garberville 114 Comment
  HSC7600  Arbutus menziesii John A. Dubois 1962-5-12 12 Humboldt 20 mi. E of Arcata Comment
  JEPS44156  Arctium minus W. L. Jepson 1936-8-12 17888 Humboldt Philipsville South Fork Eel River Comment
  UC1187351  Arctostaphylos R. G. Skolmen 1960-10-25 10 (1) Humboldt two and a half mi nnw Weitchepec; Quad 11 D-2 975 Comment
  UC1198673  Arctostaphylos Joseph P. Tracy 1937-4-3 15248 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC585939  Arctostaphylos Joseph P. Tracy 1934-3-11 13160 Humboldt French Camp Ridge 1066 Comment
  UC585951  Arctostaphylos Joseph P. Tracy 1932-7-12 10474 Humboldt head of Brett Hole Trinity Summit 1828 Comment
  UC902044  Arctostaphylos Joseph P. Tracy 1949-8-4 18406 Humboldt ridge top 1 mi w Mud Springs; Trinity Summit 1158 Comment
  UC1225932  Arctostaphylos X media Joseph P. Tracy 1945-3-30 17501 Humboldt Eureka 45 Comment
  UCD162896  Arctostaphylos canescens D. O. Burge 2015-6-5 1742 Humboldt Horse Mountain. 1460 Comment
  HSC98568  Arctostaphylos canescens subsp. canescens Cara Witte 2008-7-7 836 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. 1/2 mile southeast of Horse Mountain Mine. 1308 Comment
  CAS-BOT-BC23743  Arctostaphylos columbiana C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. between Shelter Cove and Kenny Comment
  CAS-BOT-BC23759  Arctostaphylos columbiana Alice Eastwood 1907-4-22 41 Humboldt Near Trinidad Comment
  CAS-BOT-BC23797  Arctostaphylos columbiana H. E. Parks 1931-12-1 4950 Humboldt Hobson's, Trinidad 60 Comment
  CAS-BOT-BC23822  Arctostaphylos columbiana Carl B. Wolf 1930-10-29 1040 Humboldt Old Coast Road, 7 miles south of Honeydew Post Office. 304 Comment
  HSC62325  Arctostaphylos columbiana Ruby Van Deventer 1959-2-28 Humboldt Patrick's Point on Coastal Bluff Comment
  JEPS38962  Arctostaphylos columbiana Joseph P. Tracy 1933-6-13 12583 Humboldt near summit Hoopa Mountain (ridge 1 mi s of road from Hoopa to Bair's) 1219 Comment
  UC1121466  Arctostaphylos columbiana A. E. Wieslander 1939-9-2 994 Humboldt 2 mi sw Big Lagoon (17 mi s of Orick); Rocky Pt. Quadrangle 7 Comment
  UC1222640  Arctostaphylos columbiana Joseph P. Tracy 1951-3-10 19391 Humboldt 2 mi n Trinidad; Park's place Comment
  UC397307  Arctostaphylos columbiana Joseph P. Tracy 1923-2-18 6142 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  UC585914  Arctostaphylos columbiana Joseph P. Tracy 1934-7-2 13293 Humboldt vicinity of Trinidad Northern Coast Region 60 Comment
  UCD50760  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1168 Humboldt 20 road miles east of Hwy. 101 on Bald Hills Road (from Orick). Comment
  UCD50772  Arctostaphylos columbiana Roman Gankin; W. R. Hildreth 1967-10-26 1170 Humboldt 21.4 miles east of U.S. Highway 101 on Bald Hills Road from Orick, French Camp Ridge. Comment
  POM209635  Arctostaphylos columbiana var. columbiana H. E. Parks 1931-3-25 0917 Humboldt Near Patrick's point. Comment
  RSA46459  Arctostaphylos columbiana var. columbiana Doris K. Kildale 1927-3-25 3011 Humboldt Humboldt Hill Comment
  RSA13418  Arctostaphylos columbiana var. tracyi H. E. Parks 1931-3-25 917 Humboldt Near Patrick's point. Comment
  UC1052839  Arctostaphylos glandulosa subsp. glandulosa W. L. Colwell 1955-6-7 26 Humboldt one half mi n Grasshopper Mountain lookout (three mi w of Weott); Quad. 29-B-3 914 Comment
  UC585934  Arctostaphylos glandulosa subsp. glandulosa Joseph P. Tracy 1934-7-9 13330 Humboldt 5 mi s Harris (on road towards Bell Springs); North Coast Ranges 762 Comment
  UCD52072  Arctostaphylos manzanita Joseph P. Tracy 1940-7-14 16689 Humboldt Wilder Ridge (near Kings Peak). 762 Comment
  UCD52079  Arctostaphylos manzanita Harold E. Parks; Joseph P. Tracy 1936-5-16 11304 Humboldt Near Gasquet; mountain slopes; north side of Middle Fork of Smith River; on old Gasquet Toll Road. 609 Comment
  CAS-BOT-BC24373  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1925-8-13 1382 Humboldt Willoe Creek Flat. 152 Comment
  CAS-BOT-BC38833  Arctostaphylos manzanita subsp. manzanita Doris K. Kildale 1930-5-12 9561 Humboldt McClellan Hill near Bridgeville 609 Comment
  UC585900  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1930-8-3 9141 Humboldt on river opposite Buck Mountain; Northern Coast Ranges, Van Duzen River, Dinsmore's Ranch 670 Comment
  JEPS38983  Arctostaphylos nevadensis Joseph P. Tracy 1927-6-12 8132 Humboldt Horse Mountain 1432 Comment
  UC1602024  Arctostaphylos nevadensis J. W. Congdon 1904-7-23 Humboldt <illegible> Eureka Comment
  UCD52862  Arctostaphylos nevadensis subsp. knightii Roman Gankin; W. R. Hildreth 1967-10-26 1173 Humboldt 21.4 miles east of U.S. 101 on Bald Hills Road from Orick; French Camp Ridge. Comment
  HSC55172  Arctostaphylos patula Gilbert Muth 1979-8-1 12173 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  CAS-BOT-BC43989  Arctostaphylos uva-ursi C. B. Wolf 1931-8-30 2374 Humboldt Samoa, Humboldt Bay. 7 Comment
  CAS-BOT-BC43995  Arctostaphylos uva-ursi Bolimannsou 1907-5-15 s.n. Humboldt Samoa Comment
  HSC7731  Arctostaphylos uva-ursi L. H. Myers 1963-5-5 28 Humboldt W of Lanpheres Rd., Mad River slough area Comment
  HSC7733  Arctostaphylos uva-ursi H. P. Chandler May 1901 1133 Humboldt Humboldt Bay 3 Comment
  RSA152315  Arctostaphylos uva-ursi Joseph P. Tracy 1945-3-30 17500 Humboldt Eureka. 46 Comment
  SD117461  Arctostaphylos uva-ursi Robert F. Thorne 1974-7-29 45082 Humboldt Samoa Dunes Comment
  SD41455  Arctostaphylos uva-ursi Edith A. Purer 1932-7-26 4131 Humboldt Samoa Comment
  SEINET2029875 Image available Arctostaphylos uva-ursi Joseph P. Tracy 1940-10-3 16740 Humboldt Near Samoa, on Humboldt Bay 6 Comment
  UC1225930  Arctostaphylos uva-ursi Joseph P. Tracy 1945-5-10 17506 Humboldt Eureka 45 Comment
  UC21914  Arctostaphylos uva-ursi J. P. Tracy 1897-4-17 Humboldt Samoa Humboldt Bay Comment
  UCD52047  Arctostaphylos uva-ursi Roman Gankin; W. R. Hildreth 1967-10-24 1147 Humboldt 1.7 miles s. of Samoa, on the Humboldt Peninsula. Humboldt County, California. Comment
  HSC67134  Arctostaphylos viscida J. P. Smith, J. O. Sawyer 1973-5-12 6696 Humboldt 9.6 mi. from Redwood Creek on Hoopa Rd. Comment
  RSA636989  Arctostaphylos viscida subsp. viscida Jon E. Keeley 1996-10-13 27788 Humboldt Bald Hills Road, eastern end of Redwood National Park, 223 km W of Hwy 96, N of Eureka. 600 Comment
  SD42237  Arenaria douglasii Carl B. Wolf 1937-6-14 8822 Humboldt North Coast Range, Kneeland Prairie. 819 Comment
  HSC8972  Aristida oligantha DWC 1956-8-2 Humboldt Garberville - Laughlin soil Comment
  BLMAR64  Armeria maritima subsp. californica Jennifer Anthony-Wheeler 1994-5-18 64 Humboldt Samoa/manilla dunes, growing in clumps around annual grasses 6 Comment
  HSC16899  Armeria maritima subsp. californica S. J. Hawks 1965-3-9 42 Humboldt 1 mi. W of McKinleyville, past the end of Murray Rd. Comment
  RSA246710  Armeria maritima subsp. californica Robert F. Thorne, Percy C. Everett 1965-8-5 35158 Humboldt Samoa Dunes. 3 Comment
  UC1199254  Arnica cernua Joseph P. Tracy 1926-6-20 7625 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC70755  Arnica cordifolia R. York 1980-5-17 528 Humboldt Near Le Perron Peak 1066 Comment
  UC581753  Arnica discoidea Joseph P. Tracy 1937-7-2 15398 Humboldt on ridge 2 mi e of, Grove's Prairie; Trinity Summit 1524 Comment
  HSC58599  Arnica parryi G. L. Clifton, Griswold 1979-7-25 10764 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC573781  Arrhenatherum elatius H. S. Yates 1936-6-23 5851 Humboldt 2 mi e of Mouth of Mad River 30 Comment
  HSC67041  Artemisia douglasiana J. P. Smith 1971-10-9 5032 Humboldt Banks and flood plain of the Mad River above the fish hatchery. Comment
  CAS-BOT-BC90868  Artemisia pycnocephala H. E. Parks; S. T. Parks 1952-6-1 24495 Humboldt Samoa Comment
  SEINET10725832  Artemisia suksdorfii Harold E. Parks Parks 24178 Humboldt Common on sand dunes near ocean. Comment
  RSA20965  Aruncus sylvester Carl B. Wolf 1937-9-13 9339 Humboldt N coast range, E Fork of Willow Creek at Forest Service Camp. 457 Comment
  HSC41836  Asarum caudatum Tom Duebendorfer 1977-4-23 10 Humboldt 2.5 mi S of Shelter Cove Rd. S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC44110  Asarum caudatum Barbara Kelly 1977-4-23 307 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  RSA122080  Asarum caudatum H. L. Person 1932-8-22 s.n. Humboldt Arcata Comment
  UC677691  Asarum caudatum C. C. and S. K. Harris 1936-6-14 652 Humboldt Yager Road from Carlotta 457 Comment
  HSC97950  Asarum hartwegii Cara Witte 2007-6-28 388 Humboldt Forest Service Road 6N08 (Friday Ridge Road). Near mile post 9.31 1278 Comment
  CAS-BOT-BC400744  Asarum lemmonii Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  JEPS49948  Asclepias fascicularis Mary H. Manning 1900-1 Humboldt near Hupa Comment
  POM127914  Asclepias speciosa P. E. Goddard 1906-06 688 Humboldt Blocksburg Comment
  RSA417636  Aster chilensis C. B. Wolf 1937-9-14 9355 Humboldt Redwood Highway 4 mi N of Loleta. 8 Comment
  SEINET11852839  Aster chilensis J. P. Tracy 1950-1 19362 Humboldt Cape Ridge, 0.5 mi S of Capetown, along coast road, 1 i inland from Cape Mendocino 200 Comment
  RSA112182  Astragalus gambelianus H. D. Ripley, R. C. Barneby, F. C. Ripley Jr. 1945-6-16 6822 Humboldt NW of Harris. 884 Comment
  UC302115  Astragalus rattanii var. rattanii Joseph P. Tracy 1926-5-15 7486 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC33516  Astragalus rattanii var. rattanii Chesnut and Drew July 1888 Humboldt Mad River Comment
  RSA167271  Astragalus umbraticus Joseph P. Tracy 1940-8-25 16706 Humboldt Bald Mountain; ''Lake Prairie''. 1066 Comment
  HSC34744  Asyneuma prenanthoides Thomas W. Nelson 1974-7-19 1671 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC41304  Asyneuma prenanthoides Brad Klipfel 1974-7-23 467 Humboldt Horse Mtn. Comment
  HSC69890  Asyneuma prenanthoides Thomas W. Nelson, Jane P. Nelson 1977-7-30 3662 Humboldt Beside State Rte. 36, 1 mi. E of Dinsmore. 732 Comment
  OBI1147  Athyrium filix-femina Robert J. Rodin 1962-9-5 6979 Humboldt Prairie Creek State Park Comment
  HSC30350  Athyrium filix-femina var. cyclosorum Dale R. Gradek 1974-5-28 90 Humboldt 0.25 mi. E of Hwy. 101 on Jolly Giant Creek 61 Comment
  HSC95880  Athyrium filix-femina var. cyclosorum Will Ferrand 2002-2-2 22 Humboldt 9 mi. E of intersection of West End Rd. and Warren Creek Rd. 67 Comment
  UC370619  Athyrium filix-femina var. cyclosorum H. E. Parks June, 1925 3234 Humboldt Orick Comment
  CDA15325  Atriplex prostrata R. Spadoni 1998-10-5 s.n. Humboldt North Coast; Near Loleta. Comment
  HSC102945  Avena barbata J. P. Smith 2009-5-30 12598 Humboldt Arcata. Near intersection of Valley West and Giuntoli Road Comment
  UC526704  Avena barbata Joseph P. Tracy 1933-5-20 12228 Humboldt 3 mi S of point of cape Cape Mendocino (SW slopes, fronting the ocean); Northern Coast Ranges 3 Comment
  BLMAR35  Avena barbata Brad Barr 1982-6-21 35 Humboldt King range, elk enclosure Comment
  UC526702  Avena fatua Joseph P. Tracy 1930-6-29 8824 Humboldt Buck Mountain Northern Coast Ranges (lower foothills of nw slope) Comment
  UC1239784  Azolla filiculoides Joseph P. Tracy 1911-6-25 3245 Humboldt pool back of Holmes Mill Bucksport; Northern Coast Region 0 Comment
  HSC36924  Baccharis douglasii Thomas W. Nelson, W. E. Pratt 1975-8-10 2241 Humboldt Along Shively Rd. N of Shively Comment
  HSC79368  Baccharis pilularis subsp. consanguinea Kenneth Clark 1980-11-28 1052 Humboldt Above Point No Pass 488 Comment
  HSC89490  Bellis perennis P. A. Daly 1986-2-28 64 Humboldt Trinidad Head, along trail 61 Comment
  HSC100357  Bensoniella oregana T. Jimerson, S. L. Birch 1980-7-11 975 Humboldt Snow Camp Mountain, Rooster Rock. 1280 Comment
Read comments
Nov 6 2018
  CAS-BOT-BC48160  Bensoniella oregona R. Bacigalupi; L. Constance; Reid Moran; R. L. Rodriguez; Joe Tracy; Sherwin Carlquist 1951-6-14 3416 Humboldt Bald Mountain ridge - Under forest at edge of Snow Camp Meadow, near base of Snow Camp Mt., at head of high long ridge 1432 Comment
  JEPS26215  Bensoniella oregona Joseph P. Tracy 1923-6-24 6363 Humboldt Bald Mountain in meadow near High Prairie; Northern Coast Ranges, Bald Mountain, nr High Prairie 1066 Comment
  UC1198388  Berberis aquifolium Joseph P. Tracy 1924-4-27 6641 Humboldt along hwy near Ruby Creek Willow Creek 609 Comment
  HSC72981  Berberis aquifolium var. repens Gail Newton 1980-7-22 1676 Humboldt Near Devils Backbone 1554 Comment
  UC1198389  Berberis aquifolium var. repens Joseph P. Tracy 1947-7-5 17789 Humboldt ridge top 1 mi w Mud Springs (Trinity Summit) 1158 Comment
  HSC74649  Berberis nervosa M. A. Baker 1980-5-17 1207 Humboldt Near Le Perron Peak 792 Comment
  JEPS47776  Berberis nervosa Milo S. Baker 1923-7-31 187 Humboldt Lawrence Creek Comment
  CAS-BOT-BC75800  Berberis pinnata Doris K. Kildale 1927-7-17 3759 Humboldt Bug Creek. 792 Comment
  HSC35712  Berberis pinnata Thomas W. Nelson 1975-10-12 2236 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC55339  Bistorta bistortoides Griswold, Butler 1979-7-12 7192 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC45419  Bistorta bistortoides Thomas W. Nelson, Jane P. Nelson 1977-7-4 3595 Humboldt Margin of pond above Alder Springs 1585 Comment
  HSC26828  Blechnum spicant Clifton Raymond Chesbrough 1973-6-19 73 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  JEPS53080  Boechera Joseph P. Tracy 1917-9-2 4838 Humboldt Grouse Mt. Northern Coast Ranges 1524 Comment
  CAS-BOT-BC15802  Boechera acutina Joseph Prince Tracy 1932-7-11 10396 Humboldt Klamath Mountains. Trinity Summit. At Corral Prairie. 1524 Comment
  UC667114  Boykinia major Joseph P. Tracy 1934-7-18 13448 Humboldt Grouse Mountain , at top of mountain (swampy meadow at top of mountain) 1615 Comment
  CAS-BOT-BC420272  Boykinia occidentalis L. R. Abrams 1916-7-21 6149 Humboldt Grizzly Creek Comment
  RSA245277  Boykinia occidentalis Brad W. Klipfel 1973-8-17 269 Humboldt Big Lagoon Co. Park. Comment
  HSC6580  Brassica rapa J. L. Baker 1965-3-9 5 Humboldt 4 mi. N of Arcata on N Bank Rd. Comment
  UC1199317  Brickellia californica Joseph P. Tracy 1922-10-8 6119 Humboldt near Blue Lake (Mad River gravel bar, Northern Coast Ranges); Northern Coast Ranges, Mad River 15 Comment
  CAS-BOT-BC127680  Brickellia greenei Joseph P. Tracy 1935-7-30 14361 Humboldt Serpentine formatin, Salmon Summit 1767 Comment
  HSC61765  Briza maxima Ruby Van Deventer 1963-7-1 Humboldt Along Klamath River at Pecwan Comment
  HSC9084  Briza maxima Dennis Anderson 1965-5-8 3626 Humboldt 1 mi. E of Blue Lake on Hwy. 299 Comment
  HSC100548  Brodiaea capitata Carl C. Marshall 1885-1 4 Humboldt Table Bluff. Comment
  JEPS517  Brodiaea elegans subsp. elegans Joseph P. Tracy 1936-8-2 15067 Humboldt French Camp Ridge 1066 Comment
  UCSB19699  Brodiaea elegans subsp. elegans Myrick, Donald 1964-7-26 Humboldt State Highway 299, 15 mi E of Arcata 762 Comment
Read comments
Feb 16 2009
  CAS-BOT-BC484219  Brodiaea elegans subsp. elegans Thomas W. Nelson; Jane P. Nelson 1980-7-13 6058 Humboldt Blocksburg Quad; Along the road from Dinsmore to Anderson Ford-McKeown Ranch road; North Coast Ranges 762 Comment
  JEPS7634  Brodiaea elegans subsp. elegans Milo S. Baker 1923-7-28 131 c Humboldt near camp on South Fork Yager Creek; North Coast Trip, South Fork Yager Creek Comment
  UC1222692  Brodiaea elegans subsp. elegans Joseph P. Tracy 1950-7-31 19234 Humboldt near Clear Lake; Grouse Mountain, Buck Prairie 1573 Comment
  HSC3016  Brodiaea terrestris subsp. terrestris T. M. Mingo May 1965 Humboldt 100 ft. N of parking area at College Cove Comment
  SEINET7297864 Image available Bromus breviaristatus Joseph P. Tracy 1950-1 18786 Humboldt Mail Ridge; North of Harris 2 miles 1036 Comment
  RSA10079  Bromus carinatus Joseph P. Tracy 1926-5-2 7424 Humboldt Trinity River Valley, near the south fork. Comment
  RSA167289  Bromus carinatus Joseph P. Tracy 1951-6-26 19570 Humboldt Twin Lakes vicinity, Snow Camp and Twin Lakes trip. Comment
  SEINET799035  Bromus carinatus Joseph P. Tracy 1919-1 5159 Humboldt Hill slopes at W. side of Trinity River, near Willow Creek 152 Comment
  UCD58210  Bromus carinatus var. carinatus Joseph P. Tracy 1920-5-31 5332 Humboldt Wolverton Gulch near Hydesville. 91 Comment
  UCD59273  Bromus carinatus var. carinatus A. H. Murphy 1951-3-1 6 Humboldt 2 miles north of Petrolia. Comment
  SEINET201044 Image available Bromus carinatus var. marginatus Joseph P. Tracy 13982 Humboldt French Camp Ridge 1067 Comment
  UCD58496  Bromus carinatus var. marginatus A. H. Murphy 1951-6-25 77 Humboldt About 1 mile W of Board Camp Mtn. Ca. 16 miles NE of Bridgeville. Comment
  UC53638  Bromus carinatus var. maritimus J. Burtt Davy 1899-7-30 6179 Humboldt opposite Eureka; North Coast Ranges Comment
  HSC76567  Bromus ciliatus Teresa Prendusi 1981-7-24 486 Humboldt Near Whiteys Peak 1585 Comment
  HSC9284  Bromus diandrus R. V. Papike 1962-5-25 33 Humboldt Arcata 91 Comment
  SEINET181180 Image available Bromus diandrus Bassett Maguire, Ruth Maguire; C. B. Maguire 1934-6-7 15066 Humboldt 10 miles south of Squaw Creek. Comment
  CAS-BOT-BC155428  Bromus hordeaceus Doris K. Kildale 1929-5-26 9132 Humboldt Klamath River at Orleans. 152 Comment
  SEINET200633 Image available Bromus sterilis Joseph P. Tracy 1921-5-30 5493 Humboldt Kneeland Prairie. Comment
  UCD59709  Bromus sterilis Joseph P. Tracy 1950-6-15 18776 Humboldt Mail Ridge, north of Harris 5 miles. 944 Comment
  HSC54214  Bromus tectorum Griswold, Butler 1979-7-12 7264 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC70926  Bromus tectorum R. York 1980-5-18 577 Humboldt Near Black Mountain 792 Comment
  UC1145178  Bromus tectorum Joseph P. Tracy 1942-5-16 17330 Humboldt between Miranda and Garberville 152 Comment
  UC526730  Bromus tectorum Joseph P. Tracy 1925-5-30 7039 Humboldt Northern Coast Ranges, Larrabee Valley Larrabee Valley; Northern Coast Ranges, Larrabee Valley 701 Comment
  HSC58810  Bromus vulgaris G. L. Clifton, Griswold 1979-8-1 11988 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UC1103267  Bromus vulgaris J. P. Tracy 1901-6-2 1116 Humboldt immediate vicinity of Eureka 0 Comment
  UCR51752  Buddleja davidii H. M. Pollard 1947-8-9 s.n. Humboldt North Coast Range, Klamath River near Harley Place, Orleans region Comment
Read comments
Apr 27 2007
  CHSC32805  Cakile maritima Lora L. Anderson 1981-4-25 2 Humboldt Ca. 500 yds e of ocean, 0.5 mi w of hwy 101, 11.5 mi nw of Arcata, beach. 0 Comment
  HSC39791  Cakile maritima Peter Sorensen 1976-6-4 Humboldt N Spit of Humboldt Bay Comment
  UC709461  Cakile maritima Joseph P. Tracy 1941-8-3 16979 Humboldt w foot of Table Bluff Table Bluff 3 Comment
  SEINET5138225  Cakile maritima Unknown 2002-8-19 82 Humboldt Sand beach on N side of rocky promontory and coast guard station. Comment
  UCD114935  Cakile maritima M. Barbour 1969-9-4 s.n. Humboldt Just west of Trinidad and north, across isthmus from Trinidad Bay. Comment
  CAS-BOT-BC185317  Calamagrostis foliosa Joseph Burtt Davy 1900-5-1 6602 Humboldt Hardy Creek. Comment
  UC1146622  Calamagrostis foliosa Freed W. Hoffman 1946-5-19 1737 Humboldt Rock in Mattole River Comment
  SBBG83771  Calamagrostis koelerioides J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka; Loleta Comment
  UC1738929  Calamagrostis stricta subsp. inexpansa Dean W. Taylor 1991-8-15 12276 Humboldt Snow Camp Lake 1310 Comment
  HSC17634  Calandrinia ciliata P. N. Slattery 1963-3-31 35 Humboldt Clam Beach Comment
  HSC35505  Callitriche heterophylla G. W. Clason 1962-4-25 Humboldt Hwy. 101 between Arcata and Eureka. Comment
  UC144094  Callitriche marginata J. P. Tracy 1909-5-23 2975 Humboldt At the Connick Claim, 4 mi SE of Eureka 0 Comment
  UCD149967  Callitriche palustris William Anderson; H. Mc. 1964-8-4 s.n. Humboldt McKinleyville, Shore Ares. Comment
  HSC58124  Calocedrus decurrens G. L. Clifton, Griswold 1979-8-1 12108 Humboldt Near Horse Trail Ridge 1878 Comment
  HSC72926  Calocedrus decurrens R. York 1980-5-23 619 Humboldt Near Buck Mtn. 1524 Comment
  HSC98964  Calocedrus decurrens Cara Witte 2007-9-14 648 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1649 Comment
  UC1197676  Calochortus amabilis Joseph P. Tracy 1930-6-15 8749 Humboldt Bosworth's Larrabee Creek 457 Comment
  SEINET4169781  Calochortus catalinae Unknown 1935-7-14 Humboldt Clear Lake 1524 Comment
  CAS-BOT-BC487804  Calochortus coeruleus H. C. Cantelow 1939-6-5 3947 Humboldt Dinsmore Meadow Comment
  HSC100551  Calochortus pulchellus Carl C. Marshall May 1887 479 Humboldt S Humboldt. Comment
  HSC15406  Calochortus tolmiei J. P. Tracy, H. E. Parks 1934-6-27 7 Humboldt Grouse Mtn. 1372 Comment
  CAS-BOT-BC494363  Calochortus tolmiei Volney Rattan 1882-6-1 s.n. Humboldt Kuseland Comment
  UC1222549  Calochortus tolmiei Joseph P. Tracy 1951-5-6 19394 Humboldt 5 mi e Carlotta (by old Strong's District School House) 60 Comment
  UC3435  Calochortus tolmiei H. N. Bolander 1867-1 6555 Humboldt Red Mts. Comment
  UC1222580  Caltha biflora Joseph P. Tracy 1951-6-14 19408 Humboldt Snow Camp. 1402 Comment
  UC1196207  Caltha biflora Joseph P. Tracy 1933-7-16 12779 Humboldt Northern Coast Ranges. At McKay Camp, South Fork Mountain. 1676 Comment
  CAS-BOT-BC273314  Calycadenia fremontii Doris K. Kildale 1925-7-5 1006 Humboldt Willow Creek Flat 152 Comment
  RSA381907  Calypso bulbosa Pearl Ryan 1917-6-1 s.n Humboldt Hoopa Comment
  SEINET3889828  Calypso bulbosa Rick Lundquist 1979-1 Humboldt Comment
  HSC55179  Calyptridium monospermum Gilbert Muth 1979-8-1 12189 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  JEPS90808  Calystegia occidentalis subsp. occidentalis Dean W. Taylor 1991-8-15 12298 Humboldt ridge 1 mi w of Horse Mountain; North Coast Ranges 1493 Comment
  RSA119358  Calystegia occidentalis subsp. occidentalis S. S. Tillett 1956-7-6 625 Humboldt 12.5 miles from Orleans, along Bar Shanty Road. 1174 Comment
  UC23151  Calystegia occidentalis subsp. occidentalis Harley P. Chandler June, 1901 1418 Humboldt Klamath River , Klamath River (North Coast Ranges) 304 Comment
  UC562488  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1933-7-25 12883 Humboldt Grouse Mountain , Grouse Mountain (North Coast Ranges) 1524 Comment
  RSA246921  Calystegia soldanella R. F. Thorne, P. C. Everett, K. Thorne 1965-8-5 35151 Humboldt Samoa Dunes. 3 Comment
  UC198628  Calystegia soldanella Joseph P. Tracy 1917-5-30 4803 Humboldt sand dunes near Little River; Northern Coast Ranges, near Little River 6 Comment
  UC421786  Camassia quamash P. E. Goddard 1906-6 691 Humboldt Lasseck Peak Comment
  HSC16442  Camissonia cheiranthifolia J. W. Johnson 1961-8-17 1044 Humboldt Arcata, W.M. Lanphere Farm, Samoa Peninsula. Comment
  RSA0065040  Camissonia cheiranthifolia subsp. cheiranthifolia Marcus E. Jones 1931-8-2 s.n. Humboldt McKinleyville. [State incorrect listed as Oregon] Comment
  CAS-BOT-BC160236  Camissoniopsis cheiranthifolia subsp. cheiranthifolia A. A. Heller 1924-7-24 13881 Humboldt At Humboldt County camp, 7 miles south of Trinidad Comment
  UC249615  Camissoniopsis cheiranthifolia subsp. cheiranthifolia Joseph P. Tracy 1921-7-10 5852 Humboldt Big Lagoon Northern Coast Region 6 Comment
  RSA21317  Campanula prenanthoides C. B. Wolf 1937-8-13 9215 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  SEINET10462966  Campanula prenanthoides Tracy 1911-7-4 TRACY 3286 Humboldt Hill slopes at west side of Trinity River; near Willow Creek 244 Comment
  SEINET10873256  Campanula prenanthoides Willis L. Jepson Jepson s.n. Humboldt Big Heorse Mountain Comment
  HSC58014  Campanula scouleri G. L. Clifton 1979-7-31 11815 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC74737  Campanula scouleri Gail Newton 1981-7-23 2280 Humboldt Near Bug Creek Butte. 1350 Comment
  HSC98552  Campanula scouleri Cara Witte 2007-7-20 568 Humboldt Board Camp Mountain. Forest Serivce Road 4E27. Fork Camp. 1522 Comment
  SEINET10463745  Campanula scouleri Newton 1981-7-24 Newton 2300 Humboldt Iaqua Buttes quadrangle; near Chaparral Mountain, forest openings. 1433 Comment
  SEINET10463600  Campanula scouleri Sawyer 1980-9-9 SAWYER 4085 Humboldt MILL CREEK LAKE & SURROUNDING MEADOWS WHITE FIR FOREST SALMON MTN.QUAD. T8N R6E SEC. 3 Comment
  SEINET10463749  Campanula scouleri Tracy 1908-6-27 TRACY 2858 Humboldt Valley of Van Duzen River, opposite Buck Mountain, in woods. 762 Comment
  UC302120  Cardamine angulata Joseph P. Tracy 1926-6-12 7588 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  CAS-BOT-BC37222  Cardamine angulata Joseph P. Tracy 1928-4-29 s.n. Humboldt Northern Coast Range. Prairie Creek. 152 Comment
  CAS-BOT-BC37436  Cardamine californica Alice Eastwood 1907-4-22 25 Humboldt Near Trinidad. Comment
  HSC6688  Cardamine californica D. E. Anderson 1963-3-23 2398 Humboldt Bald Mtn. Rd. Comment
  HSC6699  Cardamine californica D. E. Anderson 1965-6-1 3766 Humboldt Horse Mountain. 1220 Comment
  UC162351  Cardamine californica Joseph P. Tracy 1905-4-2 2159 Humboldt near Blue Lake; Northern Coast Ranges, near Blue Lake 30 Comment
  UC492259  Cardamine nuttallii Joseph P. Tracy 1932-7-18 10717 Humboldt head Brett Hole (Trinity Summit); Klamath Mountains, , head Brett Hole 1828 Comment
  HSC6647  Cardamine oligosperma Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  UC1199209  Cardamine oligosperma Joseph P. Tracy 1923-4-8 6179 Humboldt Carlotta Northern Coast Ranges, Carlotta 60 Comment
  UC668056  Cardaria draba Joseph P. Tracy 1938-6-12 15895 Humboldt opposite mouth of Van Duzen River (Eel River, Alton to Fortuna); Eel River 15 Comment
  UC668108  Cardionema ramosissimum Joseph P. Tracy 1933-8-22 12993 Humboldt mouth of Eel R. 3 Comment
  SEINET200666  Carex abrupta Joseph P. Tracy 1928-6-17 8450 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC18073  Carex athrostachya Joseph Prince Tracy 1934-7-18 13426 Humboldt North Coast Ranges. Grouse Mountain. 1524 Comment
  HSC44020  Carex athrostachya Thomas W. Nelson, Jane P. Nelson 1977-7-4 3594 Humboldt Beside pond above Alder Springs 1585 Comment
  CDA33036  Carex barbarae F. Wetherbee 1962-5-1 Humboldt Ferndale. 0 Comment
  HSC72698  Carex brainerdii Gail Newton 1980-6-24 571 Humboldt Near Ladder Rock 1570 Comment
  JEPS79836  Carex brainerdii Joseph P. Tracy 1935-7-30 14350 Humboldt on ridge 2 mi sw of top of Salmon Summit; Salmon Summit 1767 Comment
  CAS-BOT-BC34010  Carex brevicaulis Joseph Prince Tracy 1939-5-7 16276 Humboldt Sand Dunes, near Samoa, on Humboldt Bay. 6 Comment
  CAS-BOT-BC110193  Carex buxbaumii Robert F. Thorne; P. Everett 1965-8-7 35182 Humboldt Big Lagoon. At south end of lagoon. 1 Comment
  RSA337439  Carex buxbaumii Robert F. Thorne, Percy C. Everett 1965-8-7 35197 Humboldt Big Lagoon, south end. 2 Comment
  SEINET3899382  Carex buxbaumii Thomas Nelson, Jane P. Nelson 1978-7-2 4397 Humboldt Along road 2S08 near Pine Mountain.; 0 1463 Comment
  HSC61629  Carex cusickii Ruby Van Deventer 1959-6-20 Humboldt Humboldt/Del Norte County line, Onion Lake Comment
  JEPS80029  Carex densa Joseph P. Tracy 1925-5-30 7048 Humboldt McClellan Mountain Northern Coast Ranges, McClellan Mountain 822 Comment
  JEPS113012  Carex deweyana subsp. leptopoda Dean W. Taylor 1991-8-15 12280 B Humboldt Snow Camp Lake 1310 Comment
Read comments
Apr 8 2012
  UC562425  Carex deweyana subsp. leptopoda Joseph P. Tracy 1936-6-9 14902 Humboldt 4 mi SE of Petrolia; Mattole Valley 60 Comment
  UC1152062  Carex feta Joseph P. Tracy 1950-8-7 19267 Humboldt meadow at Box Camp Trinity Summit 1463 Comment
  UC1103079  Carex feta Joseph P. Tracy 1936-6-3 14846 Humboldt at Willow Creek Trinity River Valley 152 Comment
  UC194816  Carex feta Joseph P. Tracy 1908-7-22 2906 Humboldt opposite Buck Mountain (near top of ridge between Van Duzen and Mad River); Northern Coast Ranges, Dinsmore's Ranch 1066 Comment
  SEINET7559345 Image available Carex fracta L. P. Janeway 2003-7-30 7942 Humboldt Grouse Mountain Quad, High North Coast Range, 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. 1426 Comment
  HSC98786  Carex fracta Cara Witte 2007-7-11 489 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  BLMAR179  Carex globosa Jennifer Anthony-Wheeler 1994-6-7 179 Humboldt King range, Near horse Mt ridgee 670 Comment
  CAS-BOT-BC20869  Carex globosa Joseph Prince Tracy 1932-4-3 9791 Humboldt North Coast Ranges. Englewood. 91 Comment
  SEINET7561208 Image available Carex gynodynama M. J. Waterway, M. J. Lechowicz 1984-4-22 3057 Humboldt About 10 mi E of Arcata on Maple Creek Road, 6 mi W of jct with Butler Valley Road. Comment
  CAS-BOT-BC22310  Carex harfordii Joseph Prince Tracy 1938-7-18 16083 Humboldt At Eureka. 30 Comment
  JEPS25973  Carex harfordii Joseph P. Tracy 1935-6-8 13938 Humboldt Northern Coast Ranges, Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  UC303143  Carex harfordii H. E. Parks and Joseph P. Tracy 1925-6-13 7095 Humboldt Eureka Northern Coast Ranges, Eureka 30 Comment
Read comments
Sep 15 2010
  CAS-BOT-BC21753  Carex hassei Joseph Prince Tracy 1941-5-11 16868 Humboldt Big Lagoon. 152 Comment
  UC709392  Carex hassei Joseph P. Tracy 1941-5-11 16868 Humboldt Big Lagoon 152 Comment
  UC1103596  Carex hassei Joseph P. Tracy 1926-6-12 7592 Humboldt Big Lagoon Northern Coast Region 6 Comment
  CHSC40137  Carex hendersonii Lawrence Janeway 1982-6-17 9 Humboldt Ca 300 m w of main Arcata Community Forest rd along the rd to the HSU water tank. 137 Comment
  UCR66610  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Bull Creek at the South Fork of the Eel River 50 Comment
  RSA214832  Carex hendersonii Victor Duran 1933-5-12 3412 Humboldt Bull Creek, at South Fork of the Eel River Comment
  UC303010  Carex hendersonii Joseph P. Tracy 1926-6-13 7598 Humboldt Blue Lake Northern Coast Ranges 152 Comment
  CHSC90280  Carex jonesii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8601 Humboldt North Coast Ranges. Box Spring at Box Camp. Along trail to North Trinity Mountain. 1524 Comment
  CAS-BOT-BC7788  Carex laeviculmis Joseph Prince Tracy 1932-7-16 10635 Humboldt Trinity Summit 1584 Comment
  RSA246867  Carex leptalea subsp. leptalea Robert F. Thorne 1965-8-7 35181 Humboldt Big Lagoon, south end. 2 Comment
  HSC76778  Carex leptopoda L. P. Janeway 1983-5-15 296 Humboldt Bend of Mad River on S side, near the Fish Hatchery Rd. and across from Blue Lake 24 Comment
  HSC103595  Carex luzulina Thomas W. Nelson, Jane Nelson 1987-6-11 8603 Humboldt Box Spring at Box Camp; along trail to North Trinity Mountain. 1524 Comment
  UC1115806  Carex luzulina var. luzulina Joseph P. Tracy 1937-7-9 16341 Humboldt Snow Camp 1402 Comment
  UC1152083  Carex luzulina var. luzulina Joseph P. Tracy 1951-6-14 19410 Humboldt Snow Camp Comment
  HSC71111  Carex multicaulis M. A. Baker 1980-5-23 1387 Humboldt Near Buck Mtn. 343 Comment
  HSC70849  Carex multicostata M. A. Baker 1980-6-7 1826 Humboldt Near Ammon Creek 732 Comment
  HSC45432  Carex multicostata Thomas W. Nelson, Jane P. Nelson 1978-7-2 4393 Humboldt SE of E peak of the Mount Lassic group 1616 Comment
  UC709322  Carex multicostata Joseph P. Tracy 1939-7-9 16316 Humboldt 1 mi n Murphy Meadows; Bald Mt. 914 Comment
  CAS-BOT-BC119539  Carex nudata W. R. Dudley 1899-6-21 s.n. Humboldt Bluffs below forks of Eel River. Comment
  POM118373  Carex obnupta Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  CAS-BOT-BC119385  Carex obnupta W. R. Dudley 1899-6-1 s.n. Humboldt Peninsula opposite Eureka. Comment
  HSC38334  Carex obnupta P. D. Sorensen 1976-7-14 Humboldt N Spit of Humboldt Bay, S of Samoa, in vicinity of Humboldt County Airport Comment
  SD51256  Carex obnupta Darley F. Howe 1961-8-1 3107 Humboldt Under Picea; 3 miles north of Arcata. Comment
  SEINET10711645  Carex obnupta Robert F. Thorne 1965-8-7 Thorne 35199 Humboldt Big Lagoon; elev. c. 5 ft.; at edge of bog at S end of lagoon. Comment
  CAS-BOT-BC119265  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-BC119224  Carex pachystachya Joseph Prince Tracy 1935-6-23 13984 Humboldt French Camp Ridge. 1066 Comment
  CAS-BOT-BC119231  Carex pachystachya Joseph Prince Tracy 1927-7-4 8233 Humboldt Iaqua 609 Comment
  UC562663  Carex pachystachya Joseph P. Tracy 1927-5-29 8077 Humboldt Big Lagoon Northern Coast Region 6 Comment
  CAS-BOT-BC119162  Carex pansa Robert F. Thorne; P. Everett 1965-8-5 35165 Humboldt Samoa Dunes. 3 Comment
  CAS-BOT-BC28309  Carex scopulorum var. bracteosa Joseph Prince Tracy 1932-7-14 10562 Humboldt Trinity Summit, Corral Prairie, in wet meadow. 1584 Comment
  HSC102225  Carex scopulorum var. bracteosa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1144 Humboldt Patterson Meadows 1555 Comment
  HSC71721  Carex stipata var. stipata M. A. Baker 1980-6-26 2468 Humboldt Near Sims Creek 610 Comment
  CAS-BOT-BC116680  Carex subfusca Joseph Prince Tracy 1936-6-17 14954 Humboldt Buck Mountain, lower foothills of its NW slope. 762 Comment
  CAS-BOT-BC116682  Carex subfusca Joseph Prince Tracy 1928-6-17 8450 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  UC562337  Carex tumulicola Joseph P. Tracy 1930-7-10 8859 Humboldt Brannan Mountain Northern Coast Ranges 1219 Comment
  CAS-BOT-BC115566  Carex tumulicola Henry M. Pollard 1945-8-26 s.n. Humboldt Road to old mine N of Orleans, Klamath River Canyon. Comment
  UC1103116  Carex tumulicola Joseph P. Tracy 1924-9-14 6876 1/2 Humboldt Butter Valley Northern Caost Ranges 152 Comment
  UC1103081  Carex unilateralis Joseph P. Tracy 1938-6-15 15932 Humboldt Fortuna 30 Comment
  UC1103614  Carex vesicaria Joseph P. Tracy Jul 16 1930-Jul 19 1930 8988 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  JEPS25062  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
  HSC79475  Castilleja affinis subsp. litoralis Kenneth Clark 1980-4-18 588 Humboldt Dead Man's Gulch 12 Comment
  JEPS35843  Castilleja affinis subsp. litoralis Rimo Bacigalupi, and L. R. Heckard 8989 Humboldt just n Table Bluff lighthouse (s end of Humboldt Bay); Humboldt Bay Comment
  UC1196864  Castilleja affinis subsp. litoralis J. P. Tracy 1901-5-12 1084 Humboldt immediate vicinity Eureka 0 Comment
  UC1222830  Castilleja affinis subsp. litoralis Joseph P. Tracy 1950-6-8 18749 Humboldt 1 mi e Cape Mendocino (s slope of Bear River Ridge, near Capetown); Cape Ridge, Bear River Ridge 152 Comment
  RSA167242  Castilleja applegatei subsp. pinetorum Joseph P. Tracy 1951-6-26 19587 Humboldt North side of Board Camp Mountain, at extreme head of Redwood Creek. 1541 Comment
  HSC48266  Castilleja attenuata D. E. Anderson 1965-5-8 3642 Humboldt About 2 mi. N of Willow Creek on road running along E side of Trinity River Comment
  UC582576  Castilleja foliolosa Joseph P. Tracy 1934-7-9 13329 Humboldt 5 mi s Harris; Mail Ridge 762 Comment
  UC26418  Castilleja pruinosa Harley P. Chandler Jun 1901 1485 Humboldt Klamath River; North Coast Ranges 426 Comment
  JEPS25752  Castilleja rubicundula subsp. lithospermoides Joseph P. Tracy 1908-6 2849 Humboldt opposite Buck Mountain (valley of Van Duzen River); Northern Coast Ranges 762 Comment
  UC668171  Ceanothus cordulatus Joseph P. Tracy 1933-7-11 12681 Humboldt Cold Springs Grouse Mt. 1432 Comment
  HSC18281  Ceanothus foliosus R. H. Neuns 1950-10-17 141 Humboldt Bear Creek Rd. 6 mi N of Shelter Cove 610 Comment
  UC1222620  Ceanothus incanus Joseph P. Tracy 1950-8-4 19249 Humboldt Grasshopper Peak Bull Creek State Park at head of Canoe Creek Comment
  UCD112173  Ceanothus incanus J. E. Street 1950-6-24 s.n. Humboldt Honeydew. Comment
  CAS-BOT-BC63683  Ceanothus integerrimus M. S. Jussel 1931-5-2 115 Humboldt Garberville. Comment
  OBI36663  Ceanothus integerrimus David J. Keil 1983-7-2 17325 Humboldt Ca. 4 mi SE of SR299 along Titlow Hill rd below Horse Mtn Summit rd Comment
  BLMAR174  Ceanothus oliganthus subsp. sorediatus Donald Hazlett 1994-6-7 174 Humboldt King range, Tallus slope Near horse Mt. road 670 Comment
  CHSC70041  Ceanothus oliganthus var. sorediatus J. R. McFarland 1997-4-10 Humboldt King Range National Conservation Area. 3.7 miles north on King Range road from Shelter cove road. 601 Comment
  UC203969  Ceanothus oliganthus var. sorediatus Joseph P. Tracy 1918-5-1 4902 Humboldt towards McBrides; Northern Coast Ranges, Kneeland Prairie 762 Comment
  HSC36678  Ceanothus parryi R. Sutherland 1975-5-5 19 .5575 Humboldt Bank of Mattole River at Ettersburg Bridge 191 Comment
  HSC37086  Ceanothus parryi R. Sutherland 1975-5-20 4 .20575 Humboldt 122 Comment
  HSC43181  Ceanothus parryi R. Sutherland 1975-7-3 2 .3775 Humboldt Along Ettersburg Rd. 488 Comment
  UC1094482  Ceanothus pumilus R. E. Nelson 1955-5-14 162 Humboldt about 5 mi w Miranda; Quad. 29-C-2, w of Miranda 762 Comment
  BLMAR806  Ceanothus thyrsiflorus Madeleine Hassett 2017-7-25 806 Humboldt Lost Coast Headlands, ~200ft down the road from Fleener Creek trailhead 75 Comment
  CAS-BOT-BC52221  Ceanothus thyrsiflorus Doris K. Kildale 1926-6-28 2183 Humboldt Bluffs at Big Lagoon Comment
  CAS-BOT-BC52980  Ceanothus thyrsiflorus Doris K. Kildale 1928-5-19 5150 Humboldt Chalk Mountain Comment
  HSC18337  Ceanothus thyrsiflorus H. E. Parks Apr 1934 4229 Humboldt Spruce Cove, Trinidad 64 Comment
  RSA600896  Ceanothus thyrsiflorus Louis C. Wheeler 1959-8-1 7618 Humboldt Queens Peak Mine. Comment
  UC1004333  Ceanothus thyrsiflorus W. L. Colwell 1954-11-20 21 Humboldt along Eel River 3 mi e South Fork (Quad. 29B4); along Eel River e of South Fork, Quad. 29B4 91 Comment
  UC1198000  Ceanothus thyrsiflorus J. P. Tracy 1901-6-23 1166 Humboldt Eureks 0 Comment
  UC1193275  Ceanothus velutinus R. H. Neuns 1950-7-13 128 Humboldt 3 miles south of Alder Point 548 Comment
  HSC100907  Ceanothus velutinus Carl C. Marshall Jun 1886 257 Humboldt Ridges. 915 Comment
  HSC55641  Ceanothus velutinus var. velutinus Overton, Butler 1979-7-24 9697 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  SEINET11860706  Centaurea cyanus J. P. Tracy 1948-8-8 18097 Humboldt halfway between Bridgeville & head of S. Yager Comment
  CDA7304  Centaurea nigra Tario 1933-11-15 Humboldt Near Eureka. 0 Comment
  UC906759  Centaurium muehlenbergii Joseph P. Tracy 1942-6-15 17155 Humboldt Garberville 152 Comment
  HSC104291  Cephalanthera austiniae Samantha E. Andres 2016-5-6 23 Humboldt About 4 mi. W on Mattole Rd. from the South Fork/Honeydew exit, above Harper Creek 128 Comment
  JEPS64317  Cephalanthera austiniae Chesnut and Drew 1888-1 Humboldt Comment
  UC8232  Cerastium arvense H. N. Bolander 1867-1 6520 Humboldt E. Fork Eel R. Comment
  UC1198320  Cerastium glomeratum Joseph P. Tracy 1911-7-5 3308 Humboldt near mouth Willow Creek; Northern Coast Ranges, Willow Creek (tributary of Trinity R. 182 Comment
  SFV18532  Cerastium glomeratum H. Barnes 2002-5-4 39 Humboldt McKinleyville. Hiller Park. Hammond Trail, 0.2 km north from parking lot. 25 Comment
  JEPS51355  Cerastium viride Lincoln Constance 1934-6-3 805 Humboldt on Redwood Hwy. 1 mi. n. Dyerville (rd. from High Rock to Horse Prairie); S. Fork Eel R., Bull Creek Region Comment
  JEPS51361  Cerastium viride W. L. Jepson 1902-6-10 1883 Humboldt Harris to Ft. Seward Ranch Ridge 1066 Comment
  POM187538  Cercis occidentalis Marcus E. Jones 1931-7-16 28996 Humboldt Junction, East of Arcata. Comment
  HSC56996  Chaenactis douglasii var. douglasii Overton, Butler 1979-7-24 9571 Humboldt Near Titlow Hill, close to the town of Willow Creek 1097 Comment
  CAS-BOT-BC85655  Chamaecyparis lawsoniana Doris K. Kildale 1927-7-3 3640 Humboldt Willow Creek Flat 152 Comment
  HSC91616  Chamaecyparis lawsoniana Susan H. Bicknell 1987-8-29 Humboldt Patrick's Point State Park, near Penn Creek Comment
  POM161038  Chamaecyparis lawsoniana Joseph P. Tracy 1926-6-27 7672 Humboldt Horse Mountain 1463 Comment
  SBBG34240  Chamaecyparis lawsoniana M. Van Rensselaer 1938-3-31 Humboldt Humboldt County [no specific locality] Comment
  CAS-BOT-BC166038  Chamerion angustifolium subsp. circumvagum Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  CAS-BOT-BC166040  Chamerion angustifolium subsp. circumvagum Peter H. Raven; R. Snow 1958-7-21 13651 Humboldt 2.9 miles south of Ferndale on road to Cape Mendocino Comment
  HSC98042  Chamomilla suaveolens Cara Witte 2007-7-17 533 Humboldt Intersection of 6N01B and National Forest 1. 1427 Comment
  HSC100931  Cheilanthes californica Miss Handy Jun 1886 343 Humboldt Maple Cr. Comment
  CAS-BOT-BC68261  Cheilanthes gracillima Doris K. Kildale 1926-9-5 2649 Humboldt Lasseck's Peaks - Signal Peak 1791 Comment
  HSC99676  Cheilanthes gracillima Walter Overton, Marvin Butler 1979-7-25 9894 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  HSC25383  Chenopodium album Thomas W. Nelson 1972-10-25 702 Humboldt Eureka, waste area of Harris and B St. Comment
  UC275478  Chenopodium ambrosioides Joseph P. Tracy 1925-7-26 7212 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  CDA3058  Chenopodium ambrosioides B. F. Kemp 1957-11-8 511 -57 Humboldt Orrick. 0 Comment
  RSA424563B  Chenopodium botrys T. S. Elias, Barbara A. Elias 1987-8-26 10624 Humboldt Fernbridge, 0.5 mile S of Route 101; along West bank of Eel River, about 0.5 mile N of bridge Comment
  HSC40249  Chenopodium polyspermum Linda M. Barker 1976-8-24 1680 Humboldt 3 mi. W of Arcata Comment
  CHSC69501  Chenopodium rubrum var. rubrum Vernon Oswald; Lowell Ahart 1997-9-4 8846 Humboldt North Coast Region, Coastal Strand. Big Lagoon County Park at the southwest edge of Big Lagoon. 3 Comment
  CHSC76026  Chenopodium rubrum var. rubrum Vernon H. Oswald 1999-8-19 9834 Humboldt Coastal Strand. Clam Beach County Park on Hwy. 101 between Arcata and Trinidad. 6 Comment
  BLMAR526  Chimaphila menziesii Jennifer Wheeler 2009-6-23 526 Humboldt King range, On King Peak road Comment
  HSC17955  Chimaphila umbellata D. E. Anderson 1961-9-30 1846 Humboldt Divide Lake. 915 Comment
  HSC74352  Chimaphila umbellata Gail Newton 1980-6-17 211 Humboldt Near Onion Mtn. 1341 Comment
  HSC76593  Chimaphila umbellata Teresa Prendusi 1981-7-9 231 Humboldt Near Cedar Camp 1256 Comment
  HSC41353  Chrysolepis chrysophylla Brad Klipfel 1974-9-2 546 Humboldt Horse Mountain Comment
  UC1193062  Chrysolepis chrysophylla var. chrysophylla R. H. Neuns 1950-7-13 132 Humboldt 3 mi s Alder Point 548 Comment
  UC1196373  Chrysolepis chrysophylla var. chrysophylla Joseph P. Tracy 1935-7-29 14348 Humboldt gap at head of Red Cap Creek connecting to Devil's Backbone (Trinity Summit); Trinity Summit 1524 Comment
  HSC98791  Chrysolepis chrysophylla var. minor Cara Witte 2007-9-3 639 Humboldt Horse Mountain Botanical Area. Road 6N38. 1 mile east of Horse Mountain Mine. 1259 Comment
  UC1193060  Chrysolepis chrysophylla var. minor G. W. Tourtillott 1950-10-11 34 Humboldt 1 mi w Queens Peak 609 Comment
  UC665684  Chrysolepis chrysophylla var. minor J. P. Tracy and H. E. Parks 1941-8-28 11541 Humboldt Blake Lookout area; South Fork Mountain 1706 Comment
  HSC36884  Chrysosplenium glechomifolium J. P. Smith, Thomas W. Nelson 1976-4-27 8616 Humboldt Brazil Ranch E of Hwy. 101 near College of the Redwoods Comment
  UC642242  Cicuta douglasii Joseph P. Tracy 1927-9-25 8379 Humboldt 2 mi s of Field's Landing (near Still Ranch) 6 Comment
  HSC30333  Cicuta douglasii Dale R. Gradek 1974-5-29 89 Humboldt SE end of Big Lagoon County Park 3 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
  HSC56318  Circaea alpina subsp. pacifica Overton, Butler 1979-8-2 12657 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  HSC101544  Cirsium arvense J. P. Smith, J. O. Sawyer 2009-8-3 12645 Humboldt Roadside 103 Comment
  HSC39168  Cirsium brevistylum D. E. Anderson, J. P. Smith 1971-6-28 1235 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  UCD18977  Cirsium douglasii var. douglasii J. M. Tucker 1948-9-3 1850 Humboldt on Horse Mountain at junction of road to Grouse Mountain and road to Horse Mountain Mine. 1463 Comment
  JEPS59231  Cirsium occidentale var. candidissimum W. L. Jepson 1902-8-5 2148 Humboldt Eltersburg to Briceland Comment
  UC1223058  Cirsium occidentale var. candidissimum Joseph P. Tracy 1950-6-15 18779 Humboldt 5 mi n of Harris (on old Overland Road); Mail Ridge Comment
  CAS-BOT-BC288714  Cirsium remotifolium Peter H. Raven; R. Snow 1958-7-21 13654 Humboldt 7.2 miles NW of Capetown on road to Ferndale Comment
  JEPS30563  Cirsium remotifolium var. odontolepis Peter H. Raven, R. Snow 1958-7-21 13654 Humboldt 7.2 mi nw of Capetown (on road to Ferndale) Comment
  CAS-BOT-BC228803  Cistanthe umbellata R. K. Gierisch; D. H. Esplin 1969-7-1 3528 Humboldt Six Rivers National Forest. Grouse Mtn. Comment
  CAS-BOT-BC160945  Clarkia amoena subsp. amoena Peter H. Raven; R. Snow 1958-7-21 13656 Humboldt 7.2 miles north-west of Capetown on road to Ferndale Comment
  JEPS43735  Clarkia amoena subsp. amoena W. L. Jepson 1936-8-18 17940 Humboldt Wildcat Ridge Comment
  JEPS43650  Clarkia amoena subsp. huntiana W. L. Jepson 1902-7-1 1970 Humboldt near Berry's Ranch; Redwood Creek Comment
  LA206050  Clarkia concinna H. Lewis; M. Lewis 1947-6-13 419 Humboldt Hwy 36, 1.9 mi W of Van Duzen River Bridge Comment
  UC1198510  Clarkia concinna subsp. concinna Joseph P. Tracy 1936-6-17 14944 Humboldt lower foothills of nw slope Buck Mountain 762 Comment
  UC144076  Clarkia davyi Joseph P. Tracy 1907-7-20 2592 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  UC1196986  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1930-6-15 8745 Humboldt near Bosworth's; Northern Coast Ranges, Larrabee Creek 457 Comment
  POM208995  Clarkia purpurea subsp. quadrivulnera Lincoln Constance 1934-5-23 619 Humboldt Look Prairie, Bull Creek Watershed, Humboldt Redwood Park. 366 Comment
  UC1071917  Clarkia purpurea subsp. quadrivulnera H. and M. Lewis 1947-6-14 418 Humboldt 0.1 mi e Van Duzen River Bridge (4.129) (Highway 36) Comment
  UCR198252  Clarkia rubicunda Dean Kelch 2007-7-25 07- 507 Humboldt North Coast Range, along Hwy 29 between Lord-Ellis Summit and Hwy 96 558 Comment
  HSC74287  Claytonia exigua subsp. exigua M. A. Baker 1980-7-11 2779 Humboldt Near Red Mtn. 1341 Comment
  HSC67374  Claytonia exigua subsp. glauca Thomas W. Nelson, James Nelson 1980-6-10 5414 Humboldt Along Swayback Ridge Rd., 2.5 mi. N of junction with FS Rd. 1S07 1463 Comment
  UC494115  Claytonia exigua subsp. glauca H. E. Parks and J. P. Tracy 1930-5-26 878 Humboldt Laribee Valley Comment
  UC672996  Claytonia parviflora subsp. parviflora Joseph P. Tracy 1937-3-17 15285 Humboldt Willow Creek; Trinity River Valley 152 Comment
  HSC90228  Claytonia perfoliata L. Watson, J. Meninga Mar 1991 15 Humboldt Near Manila, Mad River slough and dunes, SW edge of parking lot. Comment
  HSC95727  Claytonia perfoliata subsp. perfoliata Steven Lee 2004-4-11 14 Humboldt 1 mi. N on scenic drive from Westhaven offramp on Hwy. 101, beach trail access N of Houda Pt. Comment
  HSC45414  Claytonia rubra subsp. rubra Thomas W. Nelson, Jane P. Nelson 1977-7-1 3542 Humboldt FS Rd. 1S07 NW of Black Lassic Comment
  HSC104049  Claytonia sibirica E. R. Fyer 2015-4-29 28 Humboldt Arcata Community Forest 92 Comment
  HSC17726  Claytonia sibirica D. E. Anderson 1961-10-1 1855 Humboldt E side of Freshwater Lagoon Comment
  HSC23727  Claytonia sibirica Tim Baroni 1971-7-6 124 Humboldt 15 mi. S of Ferndale on Mattole Rd. Comment
  POM117947  Claytonia sibirica Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  UCR122364  Claytonia sibirica George K. Helmkamp, E. A. Helmkamp 2001-7-8 6975 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
  RSA183605  Claytonia sibirica R. D. Modafferi 1965-4-8 14 Humboldt 2.2 miles N of Trinidad on Trinity Street. 305 Comment
  RSA299448  Claytonia sibirica J. P. Smith 1973-5-26 6850 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  HSC93927  Claytonia washingtoniana L. Snyder, B. Redfern, A. de Knijf 1999-4-12 37 Humboldt Mad River Fish Hatchery 54 Comment
  HSC15448  Clintonia andrewsiana M. L. Stuart 1965-4-28 34 Humboldt Up Fern Lake Rd. about 400 yds. Comment
  UC1103461  Clintonia uniflora E. Ethel Tracy 1919-8-1 Humboldt Trinity Summit; Northern Coast Ranges, Trinity Summit 1524 Comment
  CAS-BOT-BC499964  Clintonia uniflora Mrs. H. C. Cantelow 1939-6-5 2446 Humboldt About 1 1/2 miles west of Dinsmores Comment
  HSC100286  Coincya monensis subsp. recurvata J. P. Smith, J. O. Sawyer 2011-4-24 13113 Humboldt Manila; Fence row along Lupin Rd. at the Manila Community Service District Office. 4 Comment
  HSC20603  Collinsia linearis H. E. Parks 1934-6-14 4789 Humboldt Horse Mtn. 1433 Comment
  UC1115823  Collinsia parviflora Joseph P. Tracy 1939-7-9 16332 Humboldt Snow Camp 1402 Comment
  UC52837  Collomia grandiflora Joseph Burtt Davy and Walter C. Blasdale 1899-5 5770 Humboldt hills around Hoopa Valley 304 Comment
  HSC16927  Collomia heterophylla D. E. Anderson 1965-5-8 3639 Humboldt About 2 mi. N of Willow Creek on the road running along E side of Trinity River Comment
  HSC58012  Collomia heterophylla G. L. Clifton 1979-7-31 11810 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  UC1197848  Collomia heterophylla Joseph P. Tracy 1914-5-14 4461 Humboldt Fort Seward Northern Coast Region 121 Comment
  UC146175  Collomia heterophylla Joseph P. Tracy 1908-6-7 2608 Humboldt hillside on river at mouth of Maple Creek; Northern Coast Ranges, Mad River 152 Comment
  HSC99065  Collomia tracyi Cara Witte 2008-7-2 812 Humboldt Board Camp Mountain. Road to Tri Board Camp. Forest Service Road 4N38. 1574 Comment
  JEPS26236  Collomia tracyi Joseph P. Tracy 1939-8-5 16373 Humboldt Dinsmore's; Van Duzen River 737 Comment
  UC1197865  Collomia tracyi Joseph P. Tracy 1939-8-16 16416 Humboldt gravelly places near Clear Lake; North Coast Ranges 1524 Comment
  RSA46800  Comandra umbellata subsp. californica Doris K. Kildale 1926-5-2 2024 Humboldt Willow Creek. Comment
  CAS-BOT-BC157349  Comarum palustre Carl B. Wolf 1927-8-22 775 Humboldt Big Lagoon Comment
  HSC93530  Comarum palustre Gordon Leppig 1998-6-22 842 Humboldt Big Lagoon County Park, Big Lagoon Bog 2 Comment
  UC180508  Conium maculatum Joseph P. Tracy 1914-6-7 4496 Humboldt Region about Humboldt Bay (South Fork Elk River, at Falk's Mill); Northern Coast Region, South Fork Elk River, Falk's Mill 0 Comment
  CAS-BOT-BC133714  Corallorhiza Doris Kildale 1931-5-10 10689 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  HSC39077  Corallorhiza maculata J. D. Ackerman 1976-7-3 765 Humboldt 1 mi. E of Blue Lake along old state Hwy. 299. Simpson Demonstration Forest, near hwy. Comment
  HSC99806  Corallorhiza maculata T. Jimerson, J. Pageau 1979-6-13 546 Humboldt Near Onion Lake, close to the town of Orleans. 549 Comment
  UC14974  Corallorhiza mertensiana Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5625 1/2 Humboldt Bald Mt. Northern Coast Ranges Comment
  HSC78076  Cordylanthus maritimus subsp. palustris Craig Martz 1984-7-18 204 Humboldt Samoa Peninsula, about 100 feet E of paved parking area at the junction of Hwy. 255 and Vance Ave, upper edge of marsh. Comment
  POM312521  Cordylanthus maritimus subsp. palustris Malcolm A. Nobs, S. Galen Smith 1949-8-3 1200 Humboldt 2 miles north of Eureka, bordering Humboldt Bay. Comment
  POM21204  Cordylanthus pilosus subsp. pilosus L. R. Abrams 1916-7-10 5964 Humboldt Between Harris and Alder Pt. Comment
  JEPS32995  Cordylanthus tenuis subsp. viscidus Freed W. Hoffman 1949-7-14 3063 Humboldt Pine Point Ridge sw Mt. Lassic Lookout; North Coast Ranges Comment
  JEPS79878  Cornus canadensis Joseph P. Tracy 1939-7-9 16321 Humboldt Bald Mountain at Lake Prairie Bald Mountain 1066 Comment
  POM89159  Cornus glabrata Joseph P. Tracy 1919-5-31 5175 Humboldt At Lack Pond. Trinity River Valley, near Willow Creek. 152 Comment
  CAS-BOT-BC212014  Cornus nuttallii Doris K. Kildale 1927-5-13 3133 Humboldt Lord Ellis Road near Bald Mountain junction. Comment
  HSC45638  Cornus nuttallii Diane L. Reed 1978-4-22 35 Humboldt Tish Tang Campground, 5 miles north of Willow Creek on State Hwy. 96. Comment
  HSC6415  Cornus nuttallii Lincoln Constance 1934-6-2 789 Humboldt S Fork Eel River, Bull Creek, 0.5 mi. W of mouth. Comment
  UC35022  Cornus nuttallii Chesnut and Drew 1888-7-9 Humboldt Kneeland Prairie Comment
  HSC98742  Cornus sericea subsp. occidentalis Cara Witte 2007-6-27 377 Humboldt Forest Service Road 6N08. Friday Ridge Road. Approximately 2 miles south of intersection with 5N09. 1474 Comment
  HSC99428  Cornus sericea subsp. sericea K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 77 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA46468  Cornus sessilis Doris K. Kildale 1927-7-3 3631 Humboldt Willow Creek Flat. Comment
  CDA1906  Cortaderia jubata T. C. Fuller 1966-10-4 15238 Humboldt Northwestern; Outer North Coast Ranges region; 1100 acres, slope N above headquarters of Georgia Pacific Lumber Co. 0 Comment
  UC215327  Corylus californica Huron H. Smith 1911-7-7 3933 Humboldt Bull Creek Comment
  CAS-BOT-BC180303  Corylus cornuta subsp. californica Joseph P. Tracy 1949-8-11 18486 Humboldt near Snow Camp (1 1/2 mi SE) 1341 Comment
  CAS-BOT-BC180307  Corylus cornuta subsp. californica H. E. McMinn 1922-8-4 346 Humboldt Along Van Duzen River Comment
  UC166079  Cotula australis J. P. Tracy 1900-5-26 804 Humboldt Eureka Comment
  HSC5432  Cotula coronopifolia D. E. Anderson 1961-9-2 1766 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  UCD130903  Cotula coronopifolia H. E. Parks 1941-9-1 24211 Humboldt Little River State Park. Comment
  JEPS49998  Crassula aquatica Joseph P. Tracy 1916-5-31 4705 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UCR275124  Crataegus monogyna Charity A. Hartshorn 2016-4-24 10 Humboldt Arcata Marsh & Wildlife Sanctuary, east end of Klopp Lake 7 Comment
  POM301287  Crataegus suksdorfii Joseph P. Tracy 1948-9-12 18205 Humboldt Box Camp Meadow, Trinity summit. 1463 Comment
  JEPS87029  Crepis capillaris Dean W. Taylor 1991-9-15 12288 Humboldt along Hwy 101 near mouth of Tom Creek; North Coast Ranges, Big Lagoon Comment
  JEPS89545  Crepis capillaris Dean W. Taylor 1991-9-15 12288 Humboldt along Hwy. 101 near mouth of Tom Creek (Big Lagoon); N. Coast Ranges, Big Lagoon 3 Comment
  UC581730  Crepis occidentalis Joseph P. Tracy 1935-7-30 14387 Humboldt Salmon Summit; at top 2112 Comment
  HSC44153  Crepis pleurocarpa Thomas W. Nelson, Jane P. Nelson 1977-7-1 3544 Humboldt Between Bear and Blanket Creeks 1524 Comment
  UC1981756  Crepis setosa R. Spellenberg, N. Zucker 2011-7-24 14298 Humboldt Miranda, on the W side of highway in center of town. Comment
  CAS-BOT-BC290907  Crepis setosa Henry M. Pollard 1947-8-21 s.n. Humboldt Between Orleans and Boyse [Boise] Creek Comment
  HSC58122  Cryptantha affinis G. L. Clifton, Griswold 1979-8-1 12093 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC57212  Cryptantha simulans Griswold, Butler 1979-7-12 7247 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  UC1239650  Cryptantha torreyana Joseph P. Tracy 1923-6-3 6259 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC175783  Cryptantha torreyana Joseph P. Tracy 1912-6-9 3655 Humboldt Alton Northern Coast Region 30 Comment
  UC1239652  Cryptantha torreyana Joseph P. Tracy 1912-7-31 3895 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Burr Valley 1066 Comment
  UC562671  Cuscuta californica Joseph P. Tracy Jul 16 1930-Jul 19 1930 8912 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC49805  Cuscuta pacifica var. pacifica R. York 1979-5-18 301 Humboldt Around Humboldt Bay Comment
  UCD127353  Cyclospermum leptophyllum Joseph P. Tracy 1946-6-13 17613 Humboldt 5 miles east of Carlotta. 30 Comment
  HSC37257  Cynosurus echinatus Lon Hall 1975-6-19 389 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  HSC45050  Cynosurus echinatus R. Sutherland 1978-4-24 3 .24478 Humboldt Kinsey Ridge above Oat Creek 396 Comment
  UCD60168  Cynosurus echinatus J. I. Mallory 1955-6-7 114 Humboldt North end of Luke Prairie. 350 Comment
  HSC7210  Cyperus eragrostis D. E. Anderson 1963-9-29 2848 Humboldt Fish Lake Comment
  HSC7250  Cyperus squarrosus J. P. Tracy 1931-9-7 9662 Humboldt Trinity River Valley, Willow Creek 152 Comment
  UC1196444  Cypripedium fasciculatum unknown 1931-4-1 Humboldt Weitchpec 152 Comment
  SEINET200683  Cypripedium montanum Joseph P. Tracy 1918-5-26 4937 Humboldt Redwood Creek at foot of Grouse Mt. 610 Comment
  UC14955  Cypripedium montanum Harley P. Chandler June, 1901 1399 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UC34814  Cypripedium montanum W. C. Blasdale 1896-6-8 Humboldt Mad River Comment
  HSC102132  Cystopteris fragilis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1036 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC32333  Cystopteris fragilis D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5635 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge Comment
  CHSC110734  Cytisus scoparius Dean Wm. Taylor 2011-5-4 21114 Humboldt Alderpoint Road in the vicinity of the Snowline Fox Farm, vicinity of the road crossing of Knack Creek 341 Comment
  CAS-BOT-BC189768  Dactylis glomerata Doris K. Kildale; J. W. Gillespie 1929-6-25 8390 Humboldt Pines Pasture, Eureka. 30 Comment
  HSC9532  Dactylis glomerata N. R. Waite 1965-5-19 39 Humboldt W edge of Humboldt State University campus. Comment
  UC183807  Danthonia californica Joseph P. Tracy 1911-7-7 3385 Humboldt 3 mi nw junction of Willow Creek with Trinity River (meadows on mountain side, near Beebe's Ranch); Northern Coast Ranges 914 Comment
  UCD60964  Danthonia californica Joseph P. Tracy 1951-6-26 19571 a Humboldt Snow Camp and Twin Lakes vicinity. Comment
  SEINET10598246  Danthonia californica Joseph P. Tracy 1912-6-9 Tracy 3650 Humboldt Alton, common on open slopes. 30 Comment
  UC526683  Danthonia californica var. americana Joseph P. Tracy 1927-7-4 8234 Humboldt Lone Star Creek North Coast Ranges, Iaqua 609 Comment
  UCD61361  Danthonia unispicata R. Tofsrud 1948-9-3 Humboldt Road junction near summit of Horse Mt. 1463 Comment
  HSC20251  Darmera peltata C. F. Hudson 1964-5-7 6436 Humboldt 2 mi. up river from the mouth of Mad River, S bank 1 Comment
  HSC12375  Daucus carota Steve Dorei 1970-10-26 117 Humboldt Arcata, on South G St. near curve Comment
  HSC21481  Daucus pusillus D. E. Anderson 1962-7-10 2247 Humboldt Luffenholtz Beach, about 2 mi. S of Trinidad along old Hwy. 101 Comment
  UC32464  Daucus pusillus Chesnut and Drew 1888-7-10 Humboldt Jarnigan's Comment
  UC503025  Delphinium Joseph P. Tracy 1932-5-10 9934 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  HSC102608  Delphinium decorum subsp. tracyi M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1595 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  RSA296867  Delphinium decorum subsp. tracyi Joseph P. Tracy 1918-5-28 4941 Humboldt High Prairie on Bald Mtn. Comment
  UC1196175  Delphinium glaucum Doris Kildale 1925-8-1 Humboldt Trinity Summit Comment
  HSC24965  Delphinium hesperium R. Spellenberg 1965-6-14 1139 Humboldt 13 mi. W of Willow Creek along Hwy. 299 Comment
  SEINET12086786  Delphinium menziesii H. E. Parks, Tracy, J. P. 1930-1 0789 Humboldt Laribee Valley 914 Comment
  UC160933  Delphinium nudicaule Joseph P. Tracy 1908-6-8 2635 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC95789  Delphinium nudicaule Kevin Thomas 2004-3-28 9 Humboldt Horse Linto Creek Campground Comment
  HSC44525  Delphinium nuttallianum Brad Klipfel 1973-7-1 133 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS60594  Delphinium nuttallianum Joseph P. Tracy 1933-6-13 12570 Humboldt on road from Hoopa westward to Bair's (near summit); Hoopa Mountain 1066 Comment
  CAS-BOT-BC121969  Delphinium trolliifolium Carl B. Wolf 1937-6-14 8827 Humboldt 1 1/2 mi. N of Kneeland Prairie 822 Comment
  UC526669  Deschampsia cespitosa subsp. beringensis Joseph P. Tracy 1927-7-16 8257 Humboldt mouth of Elk R.; Northern Coast Region, around Humboldt Bay, Elk R. 6 Comment
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Sep 27 2007
  UC637044  Deschampsia cespitosa subsp. beringensis Edward Lee 1934-8-17 1153 Humboldt 35 mi. n. Eureka (e. shore of Big Lagoon); Big Lagoon 3 Comment
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Sep 27 2007
  CAS-BOT-BC201771  Deschampsia elongata H. N. Bolander 1862-1-1 s.n. Humboldt Unspecified Comment
  POM365046  Deschampsia elongata Henry M. Pollard 1948-7-26 s.n. Humboldt Near mouth of Camp Creek- near Orleans. Comment
  RSA293158  Deschampsia elongata J. P. Smith 1977-7-3 9245 Humboldt Six Rivers National Forest. Along the road to Onion Lake, just above Blue Lake. 976 Comment
  UC1541536  Deschampsia elongata Harold E. Parks May 1931 3232 a Humboldt Big Lagoon Comment
  UC526670  Deschampsia elongata Joseph P. Tracy 1933-7-25 12872 Humboldt Grouse Mt. North Coast Ranges, Grouse Mt. 1524 Comment
  SEINET12805277  Dicentra formosa John D. Freeman, Ruth F. Freeman 1967-1 586 Humboldt Just w of Cal Hwy 36 and just N of Carlotta 43 Comment
  HSC8356  Dicentra formosa Eugene Andreuccetti 1964-4-11 18 Humboldt 1/2 mi. S of Garberville on Hwy. 101 Comment
  HSC98559  Dicentra formosa Cara Witte 2008-6-18 738 Humboldt Approximately 1.5 miles north-west of Forest Service Rd. 6N01B. On an unmarked road on right hand side. 1433 Comment
  CAS-BOT-BC402403  Dicentra formosa subsp. formosa L. R. Abrams 1918-6-12 7084 Humboldt Cottage Nurseries, Eureka Comment
  JEPS5677  Dichelostemma X venustum Milo S. Baker 138 a Humboldt South Fork of Yager Creek Comment
  CAS-BOT-BC483665  Dichelostemma capitatum Doris K. Kildale 1927-4-17 3097 Humboldt Breeland Bridge 1/2 mile west of Garberville 114 Comment
  HSC12535  Dichelostemma congestum J. Allen DeCou 1899-1 Humboldt Willow Creek Comment
  UC1222690  Dichelostemma ida-maia Joseph P. Tracy with A. H. Murphy 1951-6-26 19568 Humboldt vicinity Twin Lakes and Snow Camp; Twin Lakes Comment
  UC635734  Dichelostemma ida-maia H. L. Mason 1928-7-20 4909 Humboldt South Fork Mountain Comment
  CAS-BOT-BC501020  Dichelostemma ida-maia D. E. Breedlove 1961-7-4 649 Humboldt 10.9 miles west of Willow Creek on US 299 822 Comment
  CAS-BOT-BC501022  Dichelostemma ida-maia Henry M. Pollard 1946-8-16 s.n. Humboldt Across [Klamath] river from Orleans Comment
  SEINET3885615  Dichelostemma ida-maia Jan G. Cooper 1976-8-2 5 Humboldt Along road to Horse Mountain Ski area turnoff of Hwy 299.; 0 1219 Comment
  UC1222688  Dichelostemma ida-maia Joseph P. Tracy 1950-7-1 18957 Humboldt near Friday Camp (on Friday Ridge); North Coast Ranges, Grouse Mountain 1219 Comment
  UC1222689  Dichelostemma ida-maia Joseph P. Tracy 1950-6-15 18777 Humboldt 5 mi n Harris (on the Overland Road); Mail Ridge Comment
  HSC26885  Digitaria sanguinalis Brad Klipfel 1973-7-24 222 Humboldt Mad River flood plain, N end of Carson RR Bridge. Comment
  CAS-BOT-BC150344  Diplacus aurantiacus C. C. Harris; S. K. Harris 1936-6-9 s.n. Humboldt Above Carlotta 60 Comment
  RSA249498  Dipsacus fullonum R. F. Thorne, P. C. Everett 1965-8-9 35282 Humboldt 2.5 miles N of Arcata. 8 Comment
  SEINET5741149 Image available Dipsacus fullonum Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6110 Humboldt In a waste area along Giuntoli Lane in Arcata. Adjacent to Eureka Sand and Gravel Company and across the road from T. P. Tire Service (1265 Giuntoli Lane).; Arcata Comment
  HSC93509  Distichlis spicata Gordon Leppig, Sylvia Leppig 1998-9-17 1101 Humboldt Arcata Marsh and Wildlife Sanctuary, W of railroad trestle. Comment
  UC34066  Distichlis spicata J. P. Tracy 1900-7-4 869 Humboldt Samoa Comment
  UC1198619  Dodecatheon hendersonii Joseph P. Tracy 1923-3-17 6165 Humboldt vicinity Garberville; vicinity of Garberville 121 Comment
  UC1222563  Dodecatheon hendersonii Joseph P. Tracy 1950-5-7 18644 Humboldt on the road to South Yager Valley about 5 mi n Bridgeville; n of Bridgeville 198 Comment
  UC562752  Dodecatheon hendersonii Joseph P. Tracy 1927-5-15 8061 Humboldt near summit on road w from Hoopa to Bair's (Hoopa Mountain); Northern Coast Ranges, Hoopa Mountain 1066 Comment
  HSC23462  Drosera rotundifolia Norman Dennis 1965-6-3 140 Humboldt Big Lagoon County Park, SW corner of Big Lagoon Comment
  RSA0011669  Drosera rotundifolia Patricia Wilder 1968-8-21 4380 Humboldt Bog in Big Lagoon Park, just west of Hwy 101; Mt. Range: Coast range; Drainage Area: Big Lagoon to Pacific Ocean. 2 Comment
  HSC57943  Drymocallis lactea var. lactea G. L. Clifton, Griswold 1979-7-31 11614 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC32345  Drymocallis rhomboidea D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5638 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC33655  Dryopteris arguta Margaret Weatherwax 1975-6-1 172 Humboldt Ward Rd. to Snow Camp Comment
  CAS-BOT-BC71054  Dryopteris expansa Mrs. H. C. Cantelow 1936-5-18 s.n. Humboldt Crokscrew Tree, 8 miles north of Orick Comment
  BLMAR300  Dryopteris expansa Jennifer Anthony-Wheeler 2002-6-10 300 Humboldt South Spit, on North jetty, west of lone cypress 6 Comment
  POM188328  Dryopteris expansa Marcus E. Jones 1931-8-2 29171 Humboldt Klamath Comment
  HSC7298  Dulichium arundinaceum D. E. Anderson 1963-9-29 2849 Humboldt Fish Lake Comment
  SEINET5227018 Image available Dysphania botrys Unknown 2002-8-17 81 Humboldt On gravel bar in Eel River, 10 miles S of Garberville onHwy 101, at Benbow Drive. Comment
  HSC4390  Dysphania pumilio D. E. Anderson 1962-7-19 2277 Humboldt Lanphere's Ranch Comment
  CAS-BOT-BC112840  Eleocharis macrostachya LeRoy Abrams 1922-6-25 8267 Humboldt Big Lagoon, south of Orick Comment
  HSC39049  Eleocharis macrostachya Linda M. Barker 1976-6-22 1621 Humboldt 3 mi. W of Arcata Comment
  UC666874  Eleocharis macrostachya Joseph P. Tracy 1934-7-14 13400 Humboldt near Blue Lake (along Mad River) Comment
  CAS-BOT-BC112838  Eleocharis macrostachya David Daniels Keck 1938-8-5 4768 Humboldt Big Lagoon, on shore in drying clay mud. Comment
  JEPS19323  Eleocharis pachycarpa Joseph P. Tracy 1926-7-25 7757 Humboldt Patrick's Point Northern Coast Ranges 30 Comment
  UC666879  Eleocharis pachycarpa Joseph P. Tracy 1935-6-8 13947 Humboldt Dry Lagoon (along coast in front of South End of Stone Lagoon) 3 Comment
  HSC96566  Eleocharis pachycarpa Gordon Leppig 1997-6-19 449 Humboldt Big Lagoon Bog, Big Lagoon County Park 3 Comment
  RSA298364  Eleocharis palustris Thomas W. Nelson 1977-9-22 3749 Humboldt In drainage ditch along east side of State Route 101 just north of the Eureka Airport Comment
  UCR21761  Eleocharis parvula Denis Kearns 1979-8-24 210 Humboldt North Coast, near the Arcata Boat Launching Facility at the south end of 'I' Street 1 Comment
  UCSB34194  Eleocharis parvula Kearns, Dennis 1979-8-24 Humboldt Near the Arcata Boat Launching Facility at the South end of "I" Street Comment
  HSC37236  Elymus glaucus Lon Hall 1975-6-19 394 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  HSC73723  Elymus glaucus M. A. Baker 1980-7-15 2959 Humboldt Near Whiting Ridge. 1341 Comment
  HSC76540  Elymus glaucus Denis Kearns 1981-7-24 444 Humboldt Near Whiteys Peak. 1768 Comment
  HSC9718  Elymus glaucus D. E. Anderson, T. O. Preston 1963-3-1 19 Humboldt Near bridge over Supply Creek. Comment
  UC212860  Elymus glaucus Joseph P. Tracy 5282 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC552765  Elymus glaucus H. E. Parks and Joseph P. Tracy 1934-6-14 11026 Humboldt Horse Mt. Northern Coast Ranges 1371 Comment
  CAS-BOT-BC203480  Elymus glaucus subsp. glaucus Doris K. Kildale 1929-6-24 7065 Humboldt Redwood Creek at Berry's Comment
  CAS-BOT-BC203482  Elymus glaucus subsp. glaucus Harold E. Parks; Joseph P. Tracy 1934-6-14 11026 Humboldt Horse Mt. 1371 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
  UCD62371  Elymus glaucus subsp. glaucus A. H. Shunk 1923-7-12 Humboldt Briceland. Comment
  RSA10136  Elymus glaucus subsp. jepsonii Joseph P. Tracy 1933-8-6 12950 Humboldt French Camp Ridge. 1067 Comment
  UC526795  Elymus glaucus subsp. jepsonii Joseph P. Tracy 1933-8-6 12950 Humboldt French Camp Ridge Northern Coast Ranges 1066 Comment
  UC552757  Elymus glaucus subsp. jepsonii Joseph P. Tracy 1934-7-9 13336 Humboldt ridge near Harris; North Coast Ranges 762 Comment
  HSC9729  Elymus mollis subsp. mollis S. J. Moore 1965-5-3 2 Humboldt Gold Beach Comment
  CAS-BOT-BC204331  Elymus trachycaulus subsp. trachycaulus David D. Keck 1944-7-11 5491 Humboldt 3 mi. N. E. of Capetown 152 Comment
  RSA125036  Epilobium angustifolium var. macrophyllum Peter H. Raven 1958-7-21 13651 Humboldt 2.9 miles south of Ferndale on road to Cape Mendocino Comment
  HSC98656  Epilobium brachycarpum Cara Witte 2007-7-26 589 Humboldt National Forest 1 on Kinsey Ridge. 1/4 mile south of intersection with 4N06. Near power poles. 1283 Comment
  POM225535  Epilobium brachycarpum P. A. Munz 1936-8-10 14337 Humboldt Little Van Duzen River, 15 miles east of Bridgeville. Comment
  UC144087  Epilobium brachycarpum Joseph P. Tracy 1900-9-9 946 Humboldt gravel bar on creek Northern Coast Region, Yager Creek (near Hydesville) 60 Comment
  HSC55351  Epilobium canum subsp. latifolium Griswold, Butler 1979-7-12 7272 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  CHSC31296  Epilobium ciliatum subsp. watsonii Mark Stopher 1980-7-2 123 Humboldt Along Elk River near Hwy 101 bridge. 1 Comment
  HSC16358  Epilobium ciliatum subsp. watsonii D. E. Anderson 1961-9-2 1764 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  RSA249499  Epilobium ciliatum subsp. watsonii Robert F. Thorne, P. C. Everett 1965-8-7 35201 Humboldt Samoa Peninsula. Elevation near sea level. Comment
  UC902168  Epilobium densiflorum Joseph P. Tracy 1942-7-18 17279 Humboldt along ditch in field Garberville 152 Comment
  HSC16369  Epilobium glaberrimum subsp. glaberrimum J. P. Tracy 1936-8-7 15102 Humboldt Trinity Summit, head of Little Hors-Linto Creek 1524 Comment
  POM160843  Epilobium hallianum Joseph P. Tracy 1923-5-13 6204 Humboldt North Coast Ranges: Bridgeville. 229 Comment
  HSC48028  Epilobium minutum Brad Klipfel 1974-6-25 432 Humboldt Horse Mtn. Comment
  HSC98840  Epilobium minutum Cara Witte 2008-7-11 877 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  HSC96280  Epilobium minutum Eric Schori, Kazuyuki Ishimaru 2005-6-15 13 Humboldt About 18 mi. S of Hwy. 299 1400 Comment
  HSC55147  Epilobium oregonense G. L. Clifton, Griswold 1979-8-1 12067 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  POM301295  Epipactis gigantea Joseph P. Tracy 1949-7-7 18335 Humboldt Blue Slide, on Van Duzen River 91 Comment
  UC667938  Equisetum arvense Joseph P. Tracy 1935-7-27 14292 Humboldt open places at McKay Prairie; Trinity Summit 1584 Comment
  CAS-BOT-BC57790  Equisetum telmateia Mrs. A. H. Rodda 1932-5-22 s.n. Humboldt Redwood Highway. Comment
  UC1187363  Equisetum telmateia subsp. braunii P. C. Hutchison 1961-3-3 885 Humboldt 1/2 ,i s Benbow (Hwy. 101, S. Fork Eel River) Comment
  UC212872  Eragrostis hypnoides Joseph P. Tracy 1920-8-15 5367 Humboldt Klamath River mouth of Bluff Creek (at mouth of Bluff Creek); Northern Coast Ranges, , Bluff Creek 152 Comment
  UC34650  Ericameria nauseosa var. speciosa Chesnut and Drew 1888-8-2 Humboldt Grouse Creek Comment
  HSC97978  Erigeron aliceae Cara Witte 2007-7-8 449 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  CAS-BOT-BC293487  Erigeron aliceae Joseph P. Tracy 1930-7-18 9035 Humboldt South Fork Mountain. Near McKay Camp 1676 Comment
  POM174061  Erigeron biolettii Joseph P. Tracy 1918-7-6 5052 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  CAS-BOT-BC296108  Erigeron foliosus var. confinis J. W. Tilden 1946-6-21 s.n. Humboldt Bluff Creek Comment
  RSA254794  Erigeron glaucus Thomas W. Nelson 1971-11-11 596 Humboldt Growing on the sand dunes at the foot of Murray Rd. McKinleyville Comment
  CAS-BOT-BC308848  Erigeron glaucus Doris K. Kildale 1926-5-15 1975 Humboldt Fleener Creek Comment
  CAS-BOT-BC295172  Erigeron inornatus Joseph P. Tracy 1933-8-6 12935 Humboldt French Camp Ridge 1066 Comment
  UC1223137  Erigeron inornatus var. inornatus Joseph P. Tracy 1950-7-31 19228 Humboldt about 1 mi n Friday's Camp (open glade where road crosses sides of the ridge); Friday Ridge Comment
  HSC70979  Erigeron klamathensis Gail Newton 1980-7-22 1667 Humboldt Near Devils Backbone 1554 Comment
  CAS-BOT-BC214586  Erigeron philadelphicus Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's [Patricks] Point State Park Comment
  HSC100375  Erigeron robustior D. Decker 2010-7-28 Humboldt Buck Project, Dinsmore. 976 Comment
  CAS-BOT-BC300278  Erigeron strigosus var. strigosus L. R. Abrams 1918-6-16 7174 Humboldt Willow Creek Comment
  HSC12218  Eriodictyon californicum Gary J. Stebbins 1970-4-27 73 Humboldt Along Hwy. 299, 4.5 mi. E of Willow Creek Comment
  CAS-BOT-BC259152  Eriogonum latifolium Tom Craig 1941-6-29 s.n. Humboldt Samoa Comment
  CDA22610  Eriogonum latifolium T. C. Fuller 1961-9-28 7050 Humboldt Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  SBBG28255  Eriogonum latifolium H. E. Parks -Aug-1941 24198 Humboldt Little River Comment
  UC665682  Eriogonum latifolium H. E. Parks August,1941 24198 Humboldt sand dunes, Little River Little River Comment
  CAS-BOT-BC259164  Eriogonum latifolium Joseph P. Tracy 1938-7-15 16062 Humboldt Near bay shore at Bucksport, Eureka 6 Comment
  POM165551  Eriogonum latifolium Joseph P. Tracy 1918-7-1 4974 Humboldt Cape Mendocino. Southwestern slopes, fronting the ocean, three miles south of point of the cape 3 Comment
  POM319175  Eriogonum latifolium Patricia Wilder 1968-8-21 4400 Humboldt Northern coastal arm of Humboldt Bay, ca. 2 miles SW of Samoa. Humboldt Bay drainage area. 8 Comment
  CAS-BOT-BC259543  Eriogonum luteolum var. luteolum Henry M. Pollard 1943-1-1 s.n. Humboldt Orleans Comment
  HSC98531  Eriogonum nudum var. nudum Cara Witte 2007-7-8 445 Humboldt Board Camp Mountain. Trail 4E28. 1496 Comment
  UC176684  Eriogonum nudum var. nudum Joseph P. Tracy 1912-7-26 3858 Humboldt hills on the Ashfield Ridge North Coast Ranges, Kneeland Prairie, Ashfield Ridge 762 Comment
  CAS-BOT-BC267967  Eriogonum umbellatum var. argus Doris K. Kildale 1925-8-16 1219 Humboldt Trinity Summit 1917 Comment
  HSC99560  Eriogonum umbellatum var. argus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 225 Humboldt Near North Trinity Mtn, 11. 9 mi east of Hoopa on Big Hill Rd (8N01), at Box Camp, Six Rivers National Forest. 1433 Comment
  HSC55065  Eriogonum umbellatum var. stellatum G. L. Clifton, Griswold 1979-7-31 11633 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC55126  Eriogonum umbellatum var. stellatum G. L. Clifton, Griswold 1979-8-1 11930 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1692 Comment
  HSC31448  Eriophorum crinigerum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-13 5566 Humboldt Lower slopes of Black Lassic near Trinity Co. line 1585 Comment
  HSC56960  Eriophorum crinigerum Overton, Butler 1979-7-23 9474 Humboldt Near Horse Mtn. Creek, close to the town of Willow Creek 1326 Comment
  HSC5610  Eriophyllum lanatum H. D. Sumner 1959-7-14 Humboldt Between Hoopa and Redwood Creek 305 Comment
  UC1199141  Eriophyllum lanatum var. achilleoides Joseph P. Tracy 1934-7-6 13664 Humboldt Iaqua; North Coast Ranges, Iaqua 609 Comment
  UC129577  Eriophyllum lanatum var. achilleoides Joseph Burtt Davy and Walter C. Blasdale 1899-6 5379 Humboldt near Harris Comment
  UC535728  Eriophyllum lanatum var. arachnoideum Eleanor Armstrong 1934-8-30 1180 Humboldt creek bed Richardson Grove 121 Comment
  RSA92676  Eriophyllum lanatum var. arachnoideum F. W. Peirson 1926-7-12 7029 Humboldt West slope of Coast Range back of Orick. Comment
  HSC97629  Eriophyllum lanatum var. grandiflorum Cara Witte 2007-6-4 205 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  HSC68953  Eriophyllum lanatum var. lanceolatum Jacqueline Greenleaf 1980-7-16 241 Humboldt Near Buck Mountain. 1250 Comment
  RSA846  Eriophyllum staechadifolium E. R. Johnson 1928-8-25 1144 Humboldt Eureka Comment
  UC582674  Eriophyllum staechadifolium Joseph P. Tracy 1934-7-2 13291 Humboldt bluffs along ocean Trinidad Comment
  UC17110  Erodium moschatum J. P. Tracy 1899-4-16 150 Humboldt Eureka Comment
  CAS-BOT-BC41575  Erysimum capitatum Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mountain. 1371 Comment
  HSC101975  Erysimum capitatum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 872 Humboldt Patterson Meadows 1566 Comment
  HSC47486  Erysimum menziesii Sheila Logan 1978-4-7 4 Humboldt Samoa sand dunes, 1/4 mi. N of Coast Guard Station. Comment
  RSA0008580  Erysimum menziesii R. I. Bonn 1965-3-19 10 -a Humboldt 4 miles west of Arcata, on Lanphere Road Comment
  CAS-BOT-BC383055  Erythranthe nasuta David B. Lowry 2005-5-14 KNR Humboldt Along Kneeland Road, just south of the intersection with Mountain View Road 658 Comment
  CAS-BOT-BC504309  Erythronium californicum Frank W. Gould 1939-5-30 826 Humboldt Top of Horse Mountain 1219 Comment
  CHSC110754  Erythronium revolutum Dean Wm. Taylor 2011-5-4 21120 Humboldt South Coast Ranges. Vicinity of Dinsmore; Forest Road 1N30 (Bick Mountain Road) about 0.5 miles SE from junction with Highway 36. 737 Comment
  JEPS88924  Erythronium revolutum Harley P. Chandler Jun 1901 1279 Humboldt Hupa Indian Reservation 1066 Comment
  UC162692  Erythronium revolutum Joseph P. Tracy 1911-5-7 3183 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC104354  Erythronium revolutum James Regan, Humboldt Redwood Co., LLC 2007-4-30 16 Humboldt Larabee Creek area, east of Redcrest 805 Comment
  HSC12348  Eschscholzia californica Steve Dorei 1970-10-20 111 Humboldt Along Plaza Ave., 200 ft. SW of Laurel Dr. Comment
  SEINET3121248 Image available Eucephalus glabratus Joseph P. Tracy 1919-1 5304 Humboldt Along road between Three Creeks and mouth of Willow Creek 914 Comment
  HSC45078  Euchiton gymnocephalus R. Sutherland 1978-4-24 6 .24478 Humboldt Kinsey Ridge above Oat Creek. 396 Comment
  CAS-BOT-BC310491  Euchiton sphaericus Joseph P. Tracy 1936-8-24 15176 Humboldt Fickle Hill. (6 mi. S.E. of Arcata) 609 Comment
  UC1199358  Euchiton sphaericus Joseph P. Tracy 1931-8-8 9608 Humboldt along Lord-Ellis Road (headwaters of North Fork of Mad River); North Fork of Mad River 609 Comment
  UCD132297  Euchiton sphaericus W. L. Jepson 1936-8-15 17898 Humboldt Carlotta, 2 miles east of. Comment
  BLMAR291  Euonymus occidentalis var. occidentalis Jennifer Anthony-Wheeler 2001-6-19 291 Humboldt Headwaters Forest Reserve, growing shaded streambank by ' babbits ridge ' 335 Comment
  SEINET11850490  Eupatorium occidentale J. P. Tracy 1950-1 19223 Humboldt Friday Ridge 1219 Comment
  HSC97574  Euphorbia crenulata Cara Witte 2007-5-23 102 Humboldt Near Grouse Mtn. Along 4N32. Approximately 0.5 mi. S of intersection with 5N04 and 4N32E. 1398 Comment
  JEPS51876  Euphorbia crenulata Lincoln Constance 1934-5-24 646 Humboldt Bull Creek Region; South Fork Eel River 121 Comment
  UC1198984  Euphorbia crenulata Joseph P. Tracy 1926-4-11 7409 Humboldt Bridgeville; Northern Coast Ranges 228 Comment
  CDA4829  Euphorbia davidii E. C. Whitney 1963-8-5 s.n. Humboldt In ballast of N.W.P. R.R. tracks, Scotia. 0 Comment
  JEPS73678  Euphorbia helioscopia Dr. Lamphere 1939-3-25 Humboldt near mouth of Mad River; near mouth of Mad River 9 Comment
  UC502956  Euphorbia spathulata Joseph P. Tracy 1929-5-5 8578 Humboldt Miranda Northern Coast Ranges, South Fork of Eel River (slopes and groves along South Fork of Eel River) 121 Comment
  CAS-BOT-BC312208  Eurybia radulina Doris K. Kildale 1929-8-4 8780 Humboldt Mattole River at Union Mattole Comment
  BLMAR699  Eurybia radulina Jennifer Wheeler 2013-10-25 699 Humboldt Lacks Creek, Upper Round Prairie 731 Comment
  JEPS31918  Eurybia radulina Lincoln Constance 1934-6-19 911 Humboldt Grasshopper Peak (near summit) South fork Eel River, Grasshopper Peak 914 Comment
  HSC40339  Festuca arundinacea Linda M. Barker 1976-6-1 1566 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC207580  Festuca californica Joseph P. Tracy 1916-4-30 4683 Humboldt Table Bluff, around Humboldt Bay Northern Coast Ranges, Humboldt Bay 121 Comment
  UC34070  Festuca californica J. P. Tracy 1901-6-23 1175 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC278424  Festuca idahoensis Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  UC70908  Festuca occidentalis Joseph Burtt Davy and Walter C. Blasdale 1899-6-10 5396 b Humboldt Hubbards Station Comment
  UC70923  Festuca occidentalis Joseph Burtt Davy and Walter C. Blasdale 1899-6-8 5362 Humboldt near Harris Comment
  CAS-BOT-BC278963  Festuca rubra David D. Keck 1948-7-1 5970 Humboldt South side of Big Lagoon Comment
  CAS-BOT-BC278967  Festuca rubra H. S. Yates 1936-6-17 5697 Humboldt Lower northwest slope of Buck Mountain 792 Comment
  CAS-BOT-BC278971  Festuca rubra Malcom A. Nobs; S. Galen Smith 1949-8-3 1171 Humboldt Around Fields Landing Comment
  HSC47790  Festuca rubra Michael A. Watkins 1978-6-10 2 Humboldt Arcata, E side of the 7th Street overpass to Hwy. 101 Comment
  UC589847  Festuca rubra H. S. Yates 1936-6-16 5667 Humboldt 1 mi sw Samoa; Eureka Quad. 6 Comment
  UCD66356  Festuca rubra subsp. pruinosa H. S. Yates 1936-6-16 5667 Humboldt 1 mile S.W. of Samoa. 6 Comment
  CAS-BOT-BC282515  Festuca subbiflora W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek and Eel River Comment
  UC552676  Festuca subulata Joseph P. Tracy 1935-7-27 14295 Humboldt McKay Prairie Trinity Summit 1584 Comment
  UCD66488  Festuca subuliflora G. L. Stebbins Jr.; G. L. Church 1941-5-27 3109 Humboldt At Strong's Station, on Van Duzen River. Comment
  HSC46955  Fragaria chiloensis J. P. Smith, Thomas W. Nelson 1977-6-30 9205 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  HSC72767  Fragaria chiloensis Therese Glowacki 1981-4-12 20 Humboldt .6 km. W of Centerville Rd., 1.6 km. S of Centerville, 9.6 km. SW of Ferndale 4 Comment
  SD39959  Fragaria chiloensis Charlotte M. Hoak 1931-7-14 2103 Humboldt Eureka, sand dunes on bar Comment
  SEINET4090923  Fragaria chiloensis O. M. Clark 1932-1 702 Humboldt North Eureka. Comment
  HSC18608  Fragaria vesca A. E. Inman 1962-5-25 Humboldt E bank of Mad River, W of Camp Bauer Comment
  HSC68717  Fragaria vesca Jacqueline Greenleaf 1980-5-23 88 Humboldt Near Dinsmores 735 Comment
  CAS-BOT-BC457928  Fragaria vesca subsp. californica Doris Kildale Gillespie 1980-5-10 656 Humboldt Shelter Cove, At base of coastal bluffs of Western beach, Point Delgada; Coastal Marine Terrace & Coastal Bluff 4 Comment
  SBBG28961  Frangula californica subsp. californica C. B. Wolf 1927-8-30 Humboldt 3 mi S of Thorn on the old coast rd Comment
  CAS-BOT-BC59954  Frangula purshiana Carl B. Wolf 1934-6-30 5818 Humboldt Mendocino. 22 Comment
  CAS-BOT-BC59994  Frangula purshiana Joseph P. Tracy 1948-8-15 18152 Humboldt Trinity Summit. On ridge 2 mi. e. of Grove's Prairie. 1524 Comment
  HSC18410  Frangula purshiana Francis Winter 1960-5-6 Humboldt Across from Azalea State Park Entrance Comment
  UCD112832  Frangula purshiana T. I. Storer 1931-7-1 2219 Humboldt northwest coast of county. Comment
  SEINET200756  Frasera speciosa Joseph P. Tracy 1917-9-2 4851 Humboldt Grouse Mt. 1524 Comment
  UC562731  Fraxinus latifolia Joseph P. Tracy 1928-4-22 8414 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1197638  Fritillaria atropurpurea Joseph P. Tracy 1935-7-30 14375 Humboldt Salmon Summit, just below the top Salmon Summit 2072 Comment
  UC667119  Fritillaria purdyi Joseph P. Tracy 1938-6-13 15925 Humboldt Horse Mt. 1432 Comment
  HSC36507  Fritillaria recurva Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-14 1884 Humboldt Beside branch off FS 2S08 to Pine Mtn. Comment
  HSC16383  Fuchsia magellanica N. D. Dennis 1965-5-5 48 Humboldt 2 mi. N of Trinidad, 1 mi. E of College Cove Comment
  CHSC19947  Galium aparine M. S. Taylor 1975-3-25 427 Humboldt Between 11th and 12th Sts, at end of Citrus Ave, Chico. Comment
  HSC32914  Galium aparine Thomas W. Nelson, James Nelson 1973-5-28 963 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC37363  Galium aparine Gary S. Lester, Roger L. Yearout, Judith G. Dickson 1974-7-24 495 Humboldt Along Lost Man Creek. 38 Comment
  HSC19781  Galium aparine B. D. Rogers, William J. Ferlatte 1966-6-8 2087 Humboldt Forest Glen Campground Comment
  HSC70981  Galium bolanderi Gail Newton 1980-7-22 1664 Humboldt Near Devils Backbone 1554 Comment
  POM367782  Galium bolanderi Anstruther Davidson 1919-7-1 3319 Humboldt Eel River Comment
  UC35335  Galium bolanderi Chesnut and Drew 1888-7-21 Humboldt S. Fork Mt. Comment
  UC602527  Galium californicum subsp. californicum Joseph P. Tracy 1936-6-27 15000 Humboldt Miranda South Fork Eel River 121 Comment
  UC1222494  Galium californicum subsp. californicum Joseph P. Tracy 1950-6-15 18827 Humboldt 7 mi n Harris; Mail Ridge, Hubbard's Station Comment
  UCD121759  Galium divaricatum Thomas W. Nelson; Jane P. Nelson 1977-9-4 3746 Humboldt Willow Creek. Comment
  UC1196118  Galium muricatum Joseph P. Tracy 1940-8-25 16709 Humboldt near High Prairie; Bald Mountain 1066 Comment
  UC213506  Galium parisiense Joseph P. Tracy 1920-7-11 5343 Humboldt near Arcata (around Humboldt Bay); Northern Coast Ranges, Fickle Hill 304 Comment
  HSC70361  Galium porrigens var. porrigens Gail Newton 1980-6-7 142 Humboldt Near Brush Mtn. 1128 Comment
  HSC99319  Galium porrigens var. porrigens C. B. Wolf 1927-8-30 1225 Humboldt 2 mi. S of Petrolia on the Matole River near the road crossing the river Comment
  UC1586851  Galium triflorum Juha Pykala 1987-6-20 1857 Humboldt n house of Prof. D. H. Norris; Kneeland, Greenwood Heights 350 Comment
  JEPS20437  Gamochaeta ustulata W. L. Jepson 1934-5-7 16714 Humboldt Bull Creek Comment
  JEPS34051  Gamochaeta ustulata Lincoln Constance 1934-5-24 627 Humboldt bordering on e side Lower Look Prairie; Bull Creek Region, South Fork Eel River 121 Comment
  UC175604  Gamochaeta ustulata Joseph P. Tracy 1913-6-21 4255 Humboldt Dinsmore's Ranch, opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River, Dinsmore's 762 Comment
  CAS-BOT-BC200578  Garrya buxifolia Carl B. Wolf 1927-8-28 1169 Humboldt Lord Ellis Road to Blue Lake, 9 mi. from Willow Creek, 2 mi. from summit Comment
  CAS-BOT-BC188544  Garrya elliptica L. R. Abrams 1916-7-18 6137 Humboldt Trinidad Comment
  UC1550379  Garrya elliptica Gerald V. Dahling Jun 1973 1229 Humboldt about 10 mi n Trinidad (along Highway 101) Comment
  HSC8395  Garrya fremontii Francis Winter 1960-5-7 Humboldt Sugar Pine Mtn. 1067 Comment
  JEPS66731  Garrya fremontii Lincoln Constance 1934-6-19 906 Humboldt near summit Grasshopper Peak; South Fork Eel River, Bull Creek Region 914 Comment
  UC668299  Garrya fremontii Joseph P. Tracy 1935-7-29 14342 Humboldt Trinity Summit; near ranger station 1828 Comment
  UCSB72514  Garrya fremontii Moseley, Maynard 1952-8-21 Humboldt Along western valley wall of Willow Creek, mostly within Hoppe Indian Reservation, upstream from Willow Village Comment
  JEPS71220  Gastridium ventricosum W. L. Jepson 1936-8-7 17855 Humboldt Upper Butte Creek Bear Buttes; , Bear Buttes Comment
  HSC74354  Gaultheria ovatifolia Gail Newton 1980-6-17 216 Humboldt Near Onion Mtn. 1341 Comment
  UC1173684  Gaultheria ovatifolia Joseph P. Tracy 1939-7-9 16320 Humboldt Bald Mountain, at Lake Prairie Bald Mountain; , Lake Prairie 1066 Comment
  CAS-BOT-BC58923  Gaultheria shallon Elmer I. Applegate 1923-9-10 3985 Humboldt Martin's Ferry, Klamath River Comment
  HSC7815  Gaultheria shallon Francis Winter 1960-4-23 Humboldt Samoa peninsula 6 mi. W of Arcata Comment
  JEPS66611  Gaultheria shallon W. L. Jepson 1902-6-29 1952 Humboldt Redwood Creek at Berry Ranch, (Expedition) from Ukiah to the Hupa Indian Reservation Redwood Creek; , Berry Ranch Comment
  UCSB19651  Gaultheria shallon Lowery, Jos. 1962-08 Humboldt Willow Springs, Mts. ca. 30 mi. E of Eureka 457 Comment
  HSC102923  Gayophytum M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1116 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  UC505108  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy Jul 16 1930-Jul 19 1930 9069 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  POM247151  Gayophytum heterozygum Joseph P. Tracy 1933-8-30 13045 Humboldt North Coast Ranges: Grouse Mountain 1524 Comment
  HSC99579  Gayophytum humile K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 244 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
  JEPS27563  Gayophytum humile Joseph P. Tracy Jul 16 1930-Jul 19 1930 8940 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC14651  Genista monspessulana R. T. Forester 1963-4-23 12 Humboldt 0.25 mi. N of Fairhaven on Samoa Rd. Comment
  HSC19392  Gentiana plurisetosa J. O. Sawyer 1968-9-27 726 Humboldt Near Water Dog Lakes and North Trinity Mtn. 1768 Comment
  HSC41183  Gentiana sceptrum Robert M. Specht 1976-10-6 546 Humboldt S shore of Big Lagoon on E side of Hwy. 101 Comment
  UC165803  Geranium bicknellii Joseph P. Tracy 1909-7-31 3048 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC8648  Geranium dissectum William J. Ferlatte 1963-5-17 51 Humboldt Waste place, near 11th and B St., Arcata Comment
  SEINET14153534 Image available Geranium molle Richard R. Halse 2015-1 9382 Humboldt Eureka; weedy area by a Texaco Station near 3543 Broadway St. and its intersection with McCullens Ave. 6 Comment
  UC907951  Gilia capitata subsp. capitata Joseph P. Tracy 1935-6-23 13995 Humboldt French Camp Ridge 1066 Comment
  RSA21031  Gilia capitata subsp. pacifica C. B. Wolf 1937-8-11 8901 Humboldt Fleener Creek, 0.5 mile south of Centerville. 46 Comment
  CAS-BOT-BC225474  Gilia millefoliata Joseph P. Tracy 1936-5-30 14833 Humboldt Near Samoa on Humboldt Bay 6 Comment
  HSC16984  Gilia millefoliata R. J. Vernimen 1963-5-11 45 Humboldt Clam Beach Lagoons, 10 mi. N of Arcata Comment
  HSC16989  Gilia millefoliata J. R. Woodside 1963-5-19 3 Humboldt 1 1/4 mi. N of Fairhaven Comment
  UC921140  Gilia millefoliata Joseph P. Tracy 1948-6-12 18067 Humboldt sand dunes near Samoa (on Humboldt Bay); , near Samoa 6 Comment
  CAS-BOT-BC123798  Gilia millefoliata var. maritima Harley Pierce Chandler 1901-5-1 1135 Humboldt North Coast Ranges, Humboldt Bay 3 Comment
  UC1197913  Gilia tricolor subsp. diffusa Joseph P. Tracy 1914-5-14 4465 Humboldt Fort Seward Northern Coast Ranges, Fort Seward 121 Comment
  HSC14203  Glechoma hederacea A. H. Teshima 1963-4-28 26 Humboldt Roadside in porous soil near the Moonstone Beach area Comment
  UC179951  Glechoma hederacea Joseph P. Tracy 1914-5-17 4475 Humboldt ridge between Freshwater and Ryans Slough (at abandoned Cumens claim); Northern Coast Region, Humboldt Bay Region 304 Comment
  SD39903  Glehnia littoralis Edith A. Purer 1932-7-27 4151 Humboldt Near Samoa Comment
  CHSC84624  Glehnia littoralis subsp. leiocarpa L. P. Janeway 2003-7-27 7930 Humboldt North Coast. Back of beach between Dry Lagoon and Sharp Point; just below steep slope. 4 Comment
  HSC93766  Glyceria declinata Gordon Leppig 1996-5-5 329 Humboldt Arcata, Healthsport parking lot of Union St. 2 Comment
  HSC74756  Glyceria elata Gail Newton 1981-8-6 2402 Humboldt Near Humbug Creek 1256 Comment
  SEINET200359 Image available Glyceria elata J. P. Tracy 1935-7-25 114251 Humboldt Trinity Summit lower end of Brett Hole 1585 Comment
  HSC98131  Glyceria striata Cara Witte 2007-6-27 376 Humboldt Forest Service Road 6N08. Friday Ridge Road. Approximately 2 miles south of intersection with 5N09. 1474 Comment
  CDA6062  Gnaphalium stramineum T. C. Fuller 1961-9-28 7059 Humboldt 1.5 miles south of Samoa. 0 Comment
  HSC99692  Goodyera oblongifolia T. Jimerson, J. Pageau 1979-6-12 535 Humboldt Near Hopkins Butte, close to the town of Orleans. 1036 Comment
  UC1196437  Goodyera oblongifolia J. P. Tracy 1900-7-4 879 Humboldt opposite Eureka (Ocean Beach at Samoa); Samoa, Ocean Beach Comment
  UC582587  Gratiola ebracteata Joseph P. Tracy 1935-5-25 13840 Humboldt Fort Seward 106 Comment
  HSC35626  Grindelia hirsutula Thomas W. Nelson, James Nelson 1975-8-5 2139 Humboldt Along south spit of Humboldt Bay ca. 1 mile N. of Table Bluff Comment
  HSC5698  Grindelia hirsutula D. E. Anderson 1962-7-15 2270 Humboldt Big Lagoon Comment
  HSC79171  Grindelia hirsutula C. K. Geldin-Meyers 1985-8-5 101 Humboldt Mouth of Davis Creek, S of Cape Mendocino 3 Comment
  UC1196598  Grindelia hirsutula Joseph P. Tracy 1939-8-6 16397 Humboldt gravelly shore Big Lagoon 3 Comment
  UC1223101  Grindelia hirsutula Joseph P. Tracy 1950-9-10 19359 Humboldt 1 mi n Capetown; Bear River Ridge 304 Comment
  BLMAR676  Grindelia stricta Jennifer Wheeler 2013-6-7 676 Humboldt Humboldt County, Seven mile beach, along Mattole road 6 Comment
  HSC104080  Hackelia bella S. Carothers 2001-6-20 Humboldt Six Rivers National Forest; Lassics Botanical Area, off Rd. 1S11, above Mule Slide Comment
  UC79899  Hackelia californica Joseph P. Tracy 1937-7-25 15548 Humboldt on Ridge 2 mi e of Groves Prairie; Trinity Summit 1524 Comment
  HSC44510  Hastingsia alba Brad Klipfel 1973-7-1 116 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  POM160314  Hastingsia serpentinicola Joseph P. Tracy 1926-6-20 7633 Humboldt Horse Mountain. 1463 Comment
  HSC56405  Helenium bigelovii Griswold, Butler 1979-7-11 7011 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  SD128471  Helenium bigelovii L. E. Urbatsch, Patricia B. Cox and Alan W. Lievens 1988-8-17 6103 Humboldt Road to Denny from California 299; 1.7 miles to left fork; 6.7 miles to right fork, 7NO4; collection site 6.4 miles. Comment
  JEPS35027  Helenium bolanderi Joseph P. Tracy 1937-7-16 15431 Humboldt Trinidad 60 Comment
  RSA18613  Helenium bolanderi C. B. Wolf 1937-8-10 9089 Humboldt Big Lagoon, bog at state park. 6 Comment
  RSA246777  Helenium bolanderi R. F. Thorne, Percy C. Everett 1965-8-9 35286 Humboldt Big Lagoon. 3 Comment
  UC175986  Helenium bolanderi J. P. Tracy 1912-7-22 3792 Humboldt near Loleta 91 Comment
  BLMAR560  Helenium puberulum Jennifer Wheeler 2009-7-21 560 Humboldt Headwaters Forest Reserve, wet depression along trail north of Falk 60 Comment
  CAS-BOT-BC309985  Hemizonia congesta subsp. tracyi H. E. Parks; J. P. Tracy 1930-5-25 0880 Humboldt Near Bridgeville Comment
  JEPS25616  Hemizonia congesta subsp. tracyi Rimo Bacigalupi 1959-7-7 7249 Humboldt immediately behind headland of Cape Mendocino (steep grade of coast road, just s of road summit at this point) 30 Comment
  UC552351  Hemizonia congesta subsp. tracyi Joseph P. Tracy 1908-6 2754 Humboldt Buck Mt., Valley of Van Duzen River 762 Comment
  RSA168837  Hemizonia tracyi Joseph P. Tracy 1950-6-8 18757 Humboldt At Domingo Hill Comment
  CDA40919  Heracleum lanatum P. Haggard 2002-8-23 PDR P 070809 Humboldt North Coast; Wildlife Refuge in the vicinity of Eureka. Sheet 2 of 3 0 Comment
  HSC91938  Heracleum maximum E. Mackey 1987-3-1 Humboldt Patrick's Point State Park, Palmer's Point Comment
  UC165831  Hesperevax sparsiflora var. brevifolia Joseph P. Tracy 1905-4-30 2173 Humboldt Humboldt Bay Comment
  RSA178554  Hesperolinon micranthum Joseph P. Tracy 1950-7-6 18994 Humboldt Buck Mountain: High meadow on west side, 3 miles south of Burr Valley, on the Albee Road. 1159 Comment
  HSC98086  Heterocodon rariflorum Cara Witte 2007-7-11 486 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1396 Comment
  HSC98091  Heterocodon rariflorum Cara Witte 2007-7-11 476 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1391 Comment
  UC203568  Heterocodon rariflorum Joseph P. Tracy 1918-7-5 5009 Humboldt White Thorn Valley; Northern Coast Ranges 304 Comment
  POM208987  Heterocodon rariflorum Lincoln Constance 1934-6-19 915 Humboldt E slope of Grasshopper Peak, Bull Creek watershed, Humboldt Redwood Park. 762 Comment
  SEINET10460657  Heterocodon rariflorum Tracy TRACY 17158 Humboldt GARBERVILLE Comment
  SEINET10460663  Heterocodon rariflorum Tracy TRACY 3329 Humboldt WILLOW CR. Comment
  CAS-BOT-BC311029  Heterotheca oregona var. compacta Joseph P. Tracy 1900-9-10 950 Humboldt Northern Coast Region. Near Hydesville 60 Comment
  CAS-BOT-BC311057  Heterotheca oregona var. oregona Doris K. Kildale 1926-5-31 2025 Humboldt Miranda, on South Fork of Eel River Comment
  HSC25982  Heterotheca oregona var. rudis Thomas W. Nelson 1970-9-3 233 Humboldt Mad River. Comment
  HSC26902  Heterotheca oregona var. rudis Thomas W. Nelson 1973-7-28 1101 Humboldt Mad River at Blue Lake Comment
  HSC39159  Heuchera micrantha D. E. Anderson, J. P. Smith 1971-6-28 - 1247 Humboldt Along Mad River, 2 mi. S of Blue Lake. Comment
  HSC71159  Heuchera micrantha Thomas W. Nelson 1977-6-15 3423 Humboldt Along USFS Rd. 5N10 just N of its junction with USFS Rd. 6N08 1372 Comment
  UC166096  Hieracium albiflorum Joseph P. Tracy 1911-7-6 3351 Humboldt along road between 3 creeks and mouth of Willow Creek 762 Comment
  HSC5840  Hieracium greenei J. P. Tracy 1935-7-30 14358 Humboldt Salmon Summit 1768 Comment
  HSC66826  Hieracium greenei Gail Newton 1980-7-15 1579 Humboldt Near Sims Mtn. 1311 Comment
  CAS-BOT-BC316006  Hieracium nudicaule Henry M. Pollard 1943-8-1 s.n. Humboldt New Orleans Comment
  HSC10135  Holcus lanatus D. B. Bader 1963-5-1 12 Humboldt Second of the Clam Beach Lagoons, W of Hwy. 101, along the railroad tracks. Comment
  SEINET181175 Image available Holcus lanatus Bassett Maguire, R Maguire; CB Maguire 1934-6-8 15060 Humboldt Coolidge, Redwood Park. Comment
  UC180229  Holcus lanatus Joseph P. Tracy 1913-6-22 4271 Humboldt opposite Buck Mountain (in valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC149908  Holodiscus discolor Clarence R. Quick 1959-7-24 59 -26 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  HSC48817  Holodiscus discolor Brad Klipfel 1973-7-31 231 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC98777  Holodiscus discolor Cara Witte 2007-8-8 623 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1547 Comment
  POM148443  Holodiscus discolor J. B. Feudge 1923-7-16 279 Humboldt Fortuna. 23 Comment
  RSA183531  Holodiscus discolor D. E. Anderson 1963-9-1 2806 Humboldt Near Kneeland. 732 Comment
  RSA46788  Holodiscus discolor Doris Kildale Gillespie 1937-8-12 15256 Humboldt South Fork Mountain. Comment
  UC1103747  Hordeum brachyantherum subsp. brachyantherum Joseph P. Tracy 1927-7-16 8251 Humboldt mouth of Elk River 3 Comment
  UCD106154  Hosackia oblongifolia Tofsrud 1948-9-1 s.n. Humboldt Clear Lake, on road from Horse Mt. to Grouse Mt. 1371 Comment
  HSC70487  Hosackia oblongifolia var. oblongifolia Gail Newton 1980-7-20 1616 Humboldt Near Bell Swamps 1426 Comment
  HSC39777  Hydrocotyle ranunculoides Peter Sorensen 1976-7-14 Humboldt Woodley Island Comment
  POM258591  Hydrophyllum occidentale Lincoln Constance, A. A. Beetle, Joseph P. Tracy 1940-5-17 2618 Humboldt NW slope, Lower slopes of Buck Mtn, near Eureka. 793 Comment
  UC180184  Hydrophyllum tenuipes Joseph P. Tracy 1914-6-7 4492 Humboldt Humboldt Bay Region; Northern Coast Region, Valley of North Fork of Eel River 0 Comment
  CAS-BOT-BC400793  Hypericum anagalloides C. L. Hitchcock; J. S. Martin 1939-7-14 5442 Humboldt 7 miles east of Shelter Cove 243 Comment
  HSC56972  Hypericum perforatum Overton, Butler 1979-7-23 9501 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC57046  Hypericum perforatum Overton, Butler 1979-7-24 9695 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC73150  Hypericum perforatum M. A. Baker 1980-5-18 1345 Humboldt Near Black Mtn. 792 Comment
  UCSB30591  Hypericum perforatum Edwards, David 1974-8-12 Humboldt S. side of 7th St; just W. of its overpass of U.S. 101; Areata 18 Comment
  HSC99605  Hypericum scouleri Jimerson, J. Pageau 1979-8-10 722 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  JEPS36532  Hypochaeris glabra Lincoln Constance 1934-5-24 639 Humboldt South fork Eel River; Bull Creek Region 121 Comment
  HSC78973  Hypochaeris glabra L. P. Janeway, Paul Wilson 1984-5-7 760 Humboldt N Spit of Humboldt Bay, on BLM lands near the Coast Guard Station 3 Comment
  CAS-BOT-BC311432  Hypochaeris radicata Alice Eastwood 1923-8-16 12332 Humboldt Carlotta Comment
  CAS-BOT-BC206838  Iliamna latibracteata H. E. Parks; S. T. Parks 1935-6-1 5593 Humboldt East of Prairie Creek, north of Orick Comment
  CAS-BOT-BC206840  Iliamna latibracteata Joseph P. Tracy 1938-8-14 16104 Humboldt Willow Creek Canyon, along Trinity Highway 762 Comment
  CAS-BOT-BC206842  Iliamna latibracteata Joseph P. Tracy 1938-8-14 16104 1/2 Humboldt Willow Creek Canyon, along Trinity Highway 762 Comment
  SEINET5536070 Image available Impatiens glandulifera W. J. Ferlatte, B. D. Rogers 1966-1 3128 Humboldt Lampheres Garden Comment
  BLMAR694  Impatiens glandulifera Jennifer Wheeler 2013-8-13 694 Humboldt Humboldt County, Bayside Road, just north of church 6 Comment
  HSC79354  Iris chrysophylla T. Jimerson, J. Pageau 1980-5-16 900 Humboldt Orleans, on FS Rd. 12N21 where it joins FS Rds. 11N30 and 11N38, Orleans Rd., ridge saddle 915 Comment
  UC162596  Iris douglasiana Joseph P. Tracy 1911-6-4 3215 Humboldt 5 mi from coast Little River (along Little River); Northern Coast Region 121 Comment
  UC52242  Iris douglasiana J. P. Tracy 1903-8-9 1939 Humboldt immediate vicinity Eureka 0 Comment
  JEPS17227  Iris douglasiana Joseph P. Tracy 1939-6-17 16311 Humboldt vicinity Carlotta 30 Comment
  RSA135872  Iris douglasiana Lee W. Lenz, E. K. Balls 1955-5-15 20742 Humboldt 2 miles southeast of Petrolia, along Old Coast Road to Ettersburg 122 Comment
  UC1188258  Iris douglasiana L. W. Lenz and E. K. Balls 1956-6-12 21666 Humboldt between Willow Creek and Blue Lake (U.S. Hwy 299) 365 Comment
  UC667112  Iris douglasiana Joseph P. Tracy 1935-6-23 14001 Humboldt e of Orick (Bald Hills Road) 609 Comment
  RSA135817  Iris purdyi E. K. Balls 1957-5-26 22609 Humboldt 0.9 mile southwest [of] Humboldt - Trinity County line, on road Alder Point to Zenia 396 Comment
  RSA135821  Iris purdyi E. K. Balls 1957-5-25 22601 Humboldt 0.2 mile west of Trinity-Humboldt County line, along State Highway 36 732 Comment
  HSC65226  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-4-27 437 Humboldt Ishi Pishi Rd., 1.2 mi. S of jct. with FS Rd. 11N11, NW side of road, Orleans 271 Comment
  HSC66484  Iris tenax subsp. klamathensis T. Jimerson, J. Pageau 1979-4-27 435 Humboldt FS Rd. 12N20, 0.9 mi. from FS Rd. 15N01, Orleans 762 Comment
  HSC35034  Iris tenuissima Thomas W. Nelson, James Nelson 1975-5-24 1856 Humboldt McKeown Ranch, N of Dinsmore Comment
  HSC70960  Iris tenuissima Thomas W. Nelson 1977-6-15 3435 Humboldt Along FS Rd. 5N10 just N of junction with FS Rd. 6N01 1463 Comment
  HSC97581  Iris tenuissima subsp. tenuissima Cara Witte 2007-5-29 131 Humboldt Along National Forest 1. Approximately 1/2 mile south of White Oak Opening. 1251 Comment
  HSC92109  Isoetes echinospora L. Carufel 1973-8-16 Humboldt Growing in Divide Lake Comment
  CAS-BOT-BC69936  Isoetes howellii Joseph P. Tracy 1930-6-15 8746 Humboldt Larrabee Creek, near Bosworth's. 457 Comment
  RSA18061  Isolepis cernua Carl B. Wolf 1927-8-22 790 Humboldt Big Lagoon Comment
  RSA246917  Isolepis cernua Robert F. Thorne, Percy C. Everett 1965-8-7 35215 Humboldt Samoa Peninsula: near sea level Comment
Read comments
Sep 12 2018
  SEINET4170781 Image available Isolepis cernua H. E. Parks, S. T. Parks 24244 Humboldt Spruce Cove , Trinidad 61 Comment
  HSC77189  Isolepis cernua Paul Wilson 1983-10-5 Humboldt Along Jolly Giant Creek, E of HSU housing, Arcata 15 Comment
  UCD49898  Isolepis cernua Linda M. Barker 1976-6-22 1618 Humboldt Coastal forest and dunes 3 miles west of Arcata, Humboldt Co., California. Comment
  CAS-BOT-BC340156  Jaumea carnosa Joseph P. Tracy 1938-7-15 16072 Humboldt Mouth of Eel River 3 Comment
  UC637154  Jaumea carnosa Edward Lee 1934-8-17 1149 Humboldt 35 mi n Eureka (e shore of Lagoon); Big Lagoon 3 Comment
  RSA168844  Juncus articulatus Joseph P. Tracy 1938-8-14 16114 Humboldt Hillside west of mouth of South Fork. Trinity River Valley , near the South Fork 183 Comment
  RSA216153  Juncus articulatus G. H. True 1965-9-28 2654 Humboldt Klamath River at Boise Creek, 2 1/2 miles southwest of orleans. 137 Comment
  UCD170802  Juncus breweri Gordon Leppig 1998-6-14 833 Humboldt Mackerricher State Park. Ingelnook Fen just north of Fen. 6 Comment
  HSC40945  Juncus bufonius Linda M. Barker 1976-6-1 1551 Humboldt 3 mi. W of Arcata Comment
  HSC98855  Juncus covillei Cara Witte 2008-7-30 972 Humboldt Forest Service Road 5N04. 1/4 mile east of intersection with Forest Service Road 4N70. 1583 Comment
  UC1152107  Juncus covillei Joseph P. Tracy 1937-8-12 15644 Humboldt Snow Camp Meadow Comment
  POM273046  Juncus effusus subsp. pacificus Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  UC183677  Juncus ensifolius Joseph P. Tracy 1912-7-24 3809 Humboldt Eureka Northern Coast Region 0 Comment
  UC212986  Juncus ensifolius Joseph P. Tracy 1919-9-22 5276 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC1152097  Juncus ensifolius Joseph P. Tracy 1938-7-12 16053 Humboldt w end Table Bluff Comment
  HSC46967  Juncus falcatus J. P. Smith, Thomas W. Nelson 1977-6-30 9213 Humboldt Samoa Peninsula just E of the drag strip 6 Comment
  UCD150386  Juncus hesperius William Anderson and H. Mc. 1964-8-6 s.n. Humboldt Little River. Comment
  RSA12536  Juncus laccatus Carl B. Wolf 1934-7-2 5902 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  UC249816  Juncus phaeocephalus Joseph P. Tracy 1924-7-13 6733 Humboldt Big Lagoon Northern Coast Region 6 Comment
  UC201996  Juncus saximontanus Joseph P. Tracy 1918-7-5 5027 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
Read comments
Dec 13 2006
  SEINET8567059 Image available Juncus xiphioides John Thomas Howell 1936-8-28 12882 Humboldt 4.5 miles from Dinsmores on road to Bridgeville Comment
  HSC73067  Juniperus communis var. saxatilis M. A. Baker 1980-6-16 1954 Humboldt Near Onion Mtn. 1280 Comment
  CAS-BOT-BC235892  Keckiella corymbosa Doris K. Kildale 1929-8-4 8779 Humboldt Mattole River at Union Mattole Comment
  RSA698922  Keckiella corymbosa J. R. Bruff 1937-8-17 938 Humboldt Richardson Grove, bed of Eel River. Comment
  UC577411  Keckiella lemmonii Joseph P. Tracy 1930-7-25 8883 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC1196076  Kelloggia galioides Joseph P. Tracy 1919-9-19 5257 Humboldt Trinity Summit; Northern Coast Ranges 1889 Comment
  JEPS11334  Kickxia elatine W. L. Jepson 1936-8-12 17878 Humboldt Phillipsville; South Fork Eel River Comment
  HSC73476  Koeleria macrantha Gail Newton 1980-7-11 1338 Humboldt Near Red Mtn. 1341 Comment
  UC50517  Koeleria macrantha Joseph Burtt Davy and Walter C. Blasdale 1899-6-12 5478 Humboldt Elk Prairie Comment
  HSC57008  Lactuca serriola Overton, Butler 1979-7-24 9600 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1250 Comment
  RSA170207  Lactuca serriola Joseph P. Tracy 1949-8-8 18402 Humboldt Frank Graham's orchard; Trinity River Valley, at Willow Creek. 152 Comment
  CAS-BOT-BC337996  Lasthenia californica Doris K. Kildale 1926-4-30 1933 Humboldt Fruitland Hill - Harris road Comment
  CAS-BOT-BC324946  Lasthenia californica subsp. bakeri Dr. A. Kellogg; W. G. W. Harford 1868-1-1 464 Humboldt Eureka Comment
  JEPS10075  Lasthenia californica subsp. californica Joseph P. Tracy 1932-6-26 10265 Humboldt Valley of South Yager Creek 762 Comment
  HSC93228  Lathyrus biflorus Kenneth W. Fuller 1998-7-2 Humboldt Red Mtn. Comment
  JEPS55246 Image available Lathyrus japonicus Joseph P. Tracy 1912-7-7 3736 Humboldt Eureka Northern Coast Region 0 Comment
  HSC71617  Lathyrus latifolius J. P. Smith 1973-5-26 6800 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC14747  Lathyrus littoralis R. E. Hafenfeld 1965-5-9 45 Humboldt 1/4 mi. N of Squashan Cr. near Gold Bluff Beach Rd. Comment
  HSC33416  Lathyrus nevadensis var. nevadensis Thomas W. Nelson 1974-5-30 1346 Humboldt Along Hoopa-Redwood Valley Rd. Comment
  HSC71466  Lathyrus nevadensis var. nevadensis J. P. Smith, J. O. Sawyer 1973-5-12 6701 Humboldt 9.6 mi. from Redwood Creek on Hoopa 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
  JEPS55296  Lathyrus torreyi W. L. Jepson 1934-5-7 16705 Humboldt Buckeye Prairie Bull Creek Comment
  POM277519  Lathyrus torreyi Lyman Benson 1928-7-12 460 Humboldt Weott Ranger Station. 61 Comment
  RSA64968  Lathyrus vestitus subsp. bolanderi C. L. Hitchcock 1949-6-7 19083 Humboldt 1/5 mile S of Pepperwood, along Highway #101. Comment
  UCD106539  Lathyrus vestitus var. ochropetalus C. L. Hitchcock 1949-6-7 19081 Humboldt Redwood highway ca. 15 miles N of Garberville. Comment
  CAS-BOT-BC325929  Layia carnosa Joseph P. Tracy 1932-5-16 10106 Humboldt Sand dunes near Samoa, on Humboldt Bay. Comment
  UC1199159  Layia carnosa Joseph P. Tracy 1937-6-5 15327 Humboldt mouth of Little River 6 Comment
  HSC10273  Leersia oryzoides D. E. Anderson 1963-9-29 2847 Humboldt Fish Lake. Comment
  HSC36107  Lemna minor Neil D. Ledet 1973-11-29 7 Humboldt 16 mi. S of Ferndale, N side of Cape Town along county Rd., floating on ranch pond Comment
  RSA246941  Leontodon leysseri R. F. Thorne, P. C. Everett 1965-8-8 35234 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  HSC64787  Lepidium densiflorum J. P. Smith, Steve Selva 1970-6-14 3843 Humboldt Along Hwy. 96 at Whitmore Creek 152 Comment
  CAS-BOT-BC89075  Lepidium didymum K. L. Chambers; Ron Tyrl 1969-5-25 2927 Humboldt Strong's Station ca. 6.5 mile east of Carlotta on Highway 36. Comment
  RSA170231  Lepidium heterophyllum Joseph P. Tracy 1942-6-15 17140 Humboldt Miranda. 91 Comment
  UC195426  Lepidium virginicum Joseph P. Tracy 1915-9-12 4670 Humboldt opposite Laribee Creek; Northern Coast Ranges, Eel River, Holmes Flat 60 Comment
  UC552286  Lepidium virginicum Joseph P. Tracy 1933-8-22 12992 Humboldt Mouth of Eel River North Coast Ranges 3 Comment
  HSC45831  Leptosiphon androsaceus J. P. Smith, J. O. Sawyer 1973-5-12 6685 Humboldt 3.8 mi. from Redwood Creek on Hoopa road Comment
  HSC74229  Leptosiphon ciliatus M. A. Baker 1980-7-15 2958 Humboldt Near Whiting Ridge. 1341 Comment
  JEPS20620  Lessingia nemaclada Joseph P. Tracy 1929-8-18 8656 Humboldt on Van Duzen River opposite Buck Mountain; Northern Coast Ranges, Dinsmore's Ranch 670 Comment
  BLMAR147  Leucanthemum vulgare Donald Hazlett 1994-6-7 147 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  JEPS37563  Leucanthemum vulgare Lincoln Constance 1934-6-6 827 Humboldt Fire trail Dyerville tottorse Prairie; Bull Creek Region Comment
  HSC12543  Leucanthemum vulgare C. Kline 1970-10-26 40 Humboldt W end of School Rd., McKinleyville, above Mad River. Comment
  HSC96535  Leucanthemum vulgare Gordon Leppig 1997-8-3 649 Humboldt Big Lagoon County Park, Big Lagoon Bog. 3 Comment
  HSC48837  Lewisia nevadensis Brad Klipfel, J. O. Sawyer, J. P. Smith 1973-5-27 28 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  HSC44553  Lewisia triphylla Brad Klipfel 1973-7-15 172 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  RSA331970  Leymus mollis subsp. mollis Dave Kelly, Walter Wisura 1985-7-28 4062 Humboldt Outer sand dunes near Manilla, Samoa Peninsula near Eureka Comment
  POM160887  Leymus triticoides Joseph P. Tracy 1918-7-6 5063 Humboldt South Fork of Eel River near the Humboldt-Mendocino County Line 152 Comment
  UC526800  Leymus triticoides Joseph P. Tracy 1929-6-3 8601 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1197174  Ligusticum apiifolium Joseph P. Tracy 1930-7-6 8851 Humboldt at crossing of the Iaqua to yager rd. North Yager Creek 396 Comment
  HSC34742  Ligusticum californicum Thomas W. Nelson 1974-7-19 1673 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC13238  Ligustrum ovalifolium Jana Kattenhorn 1970-10-24 105 Humboldt HSC Campus, S of building 37 Comment
  UC1222551  Lilaea scilloides Joseph P. Tracy 1950-6-18 18844 Humboldt s of point Cape Mendocino (at Davis Creek) 3 Comment
  UC13798  Lilium columbianum Chesnut and Drew 1888-7-8 Humboldt near Arcata Comment
  UC176689  Lilium columbianum Joseph P. Tracy 1913-7-13 4356 B Humboldt Patrick's Point; Northern Coast Ranges 30 Comment
  UC179932  Lilium columbianum Joseph P. Tracy 1914-9-7 4617 B Humboldt 10 mi e Korbel (near the Bald Mt. House); Northern Coast Ranges 914 Comment
  HSC76434  Lilium kelleyanum Teresa Prendusi 1981-7-24 468 Humboldt Near Whiteys Peak 1585 Comment
  HSC49927  Lilium kelloggii Maralyn O'Meara 1974-7-17 548 Humboldt Along Kneeland rd. across from Kneeland Post Office Comment
  RSA130320  Lilium kelloggii Albert M. Vollmer 1949-7-1 s.n. Humboldt 3 miles east of the old Eureka-Arcata road on the Kneeland road Comment
  UC1198233  Lilium pardalinum Joseph P. Tracy 1937-7-24 15533 A Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  UC1198235  Lilium pardalinum Joseph P. Tracy 1924-7-4 6714 Humboldt Snow Camp; Northern Coast Ranges 1371 Comment
  HSC58051  Lilium pardalinum subsp. pardalinum G. L. Clifton, Griswold 1979-8-1 11913 Humboldt Near Mill Creek Lakes, close to the town of Hoopa. 1692 Comment
  HSC15582  Lilium rubescens H. E. Parks Jul 1933 1414 Humboldt S Fork Mtn. Comment
  HSC57654  Lilium washingtonianum subsp. washingtonianum G. L. Clifton, Griswold 1979-7-25 10825 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  UC275336  Limnanthes douglasii Joseph P. Tracy 1924-5-4 6667 Humboldt near Bridgeville; Northern Coast Ranges 304 Comment
  UC668184  Limnanthes douglasii subsp. nivea Joseph P. Tracy 1937-6-20 15346 Humboldt ten mi up stream from mouth; Bear River 152 Comment
  HSC1801  Limonium californicum William J. Ferlatte, B. D. Rogers 1966-8-15 3126 Humboldt Near Arcata sewage pond, N Humboldt Bay. Comment
  UC1198577  Linanthus acicularis Joseph P. Tracy 1921-4-24 5474 Humboldt Phillipsville, facing South Fork of Eel River Northern Coast Ranges 121 Comment
  UC906752  Linanthus acicularis Joseph P. Tracy 1947-5-10 17680 Humboldt near Briceland 457 Comment
  UC52532  Linanthus bicolor J. P. Tracy 1902-7-4 1763 Humboldt immediate vicinity Eureka 0 Comment
  HSC100667  Linaria canadensis Carl C. Marshall Jun 1886 237 Humboldt Trinidad. Comment
  RSA46839  Linaria vulgaris Doris K. Kildale 1926-6-4 2090 Humboldt Trinidad. Comment
  HSC46136  Linum bienne J. P. Smith 1971-10-6 4964 Humboldt End of Murray Rd. in McKinleyville. Comment
  UC169892  Linum bienne Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5685 Humboldt North Coast Ranges, Hoopa Mountain Hoopa Mountain; North Coast Ranges, Hoopa Mountain Comment
  HSC49829  Linum bienne Maralyn O'Meara 1974-7-11 531 Humboldt Kneeland, Barry Ridge Comment
  POM270414  Lithocarpus densiflorus var. densiflorus Lyman Benson 1927-7-12 224 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; River: South Fork Eel. 61 Comment
  UC1196494  Lithophragma campanulatum Joseph P. Tracy 1932-7-18 10700 Humboldt head of Brett Hole Trinity Summit; Klamath Mountains, , head of Brett Hole 1828 Comment
  UC11920  Lithophragma glabrum J. Burtt Davy 1899-6-23 5795 Humboldt Trinity Summit; North Coast Ranges, Trinity Summit 2133 Comment
  HSC78980  Lobularia maritima L. P. Janeway 1984-12-5 1195 Humboldt N Spit of Humboldt Bay, W side Samoa Rd. near the boat ramp 5 Comment
  HSC77904  Logfia gallica L. P. Janeway, Paul Wilson 1984-5-25 826 Humboldt On the N Spit of Humboldt Bay; on BLM lands near the Coast Guard Station 5 Comment
  UC1100297  Lolium multiflorum Malcolm A. Nobs and S. Galen Smith 1949-8-3 1177 Humboldt Salt Marshes around Fields Landing; Salt marshes around Fields Landing Comment
  UC50708  Lolium multiflorum Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6112 B Humboldt Arcata; Russ Ranch, North-Western California Comment
  UCD66068  Lolium multiflorum R. N. Raynor 1935-6-7 Humboldt Fort Seward. Comment
  UCD66191  Lolium multiflorum Malcolm A. Nobs; S. Galen Smith 1949-8-3 1177 Humboldt Around Fields Landing. Comment
  HSC10306  Lolium perenne R. H. Berg 1963-2-27 4 Humboldt Arcata, Fickle Hill area. Comment
  UC162334  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1911-7-6 3345 Humboldt along rd. between Three Creeks and mouth of Willow Creek; Northern Coast Ranges 762 Comment
  HSC24400  Lomatium dasycarpum subsp. dasycarpum J. O. Sawyer 1970-6-24 2223 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  RSA167240  Lomatium dasycarpum subsp. dasycarpum Joseph P. Tracy 1950-7-6 19000 Humboldt On the Albee Road, 2 miles south of Burr Valley Comment
  HSC78918  Lomatium macrocarpum T. Jimerson, D. K. Imper 1982-5-17 1437 Humboldt Near Ashfield Ridge. 822 Comment
  HSC46923  Lomatium tracyi Brad Klipfel 1974-5-27 381 Humboldt Horse Mtn. Comment
  JEPS118113  Lomatium utriculatum Dean W. Taylor 2005-6-9 19338 Humboldt vicinity Larabee Valley; ridge dividing Swift Creek from Horse Creek, ca. 2 air miles SSE of Larabee Valley 853 Comment
  HSC102012  Lonicera conjugialis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 913 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC58297  Lonicera conjugialis Walter Overton, Marvin Butler 1979-8-2 12570 Humboldt Near Bret Hole, close to the town of Hoopa. 1554 Comment
  CAS-BOT-BC240479  Lonicera hispidula Carl B. Wolf 1927-8-28 1164 Humboldt Hoopa [Hupa Valley] Indian Reservation, on the Trinity River, 8 mi. from Weitchpec Comment
  UC1239559  Lonicera hispidula var. vacillans Joseph P. Tracy 1938-7-5 16000 Humboldt Carlotta Northern Coast Ranges 60 Comment
  UC726590  Lonicera hispidula var. vacillans A. A. Heller 1923-7-10 13799 Humboldt between Scotia and Pepperwood; Eel River Comment
  CAS-BOT-BC241486  Lonicera involucrata var. ledebourii B. D. Stark 1929-7-24 1387 Humboldt 8 miles south of Eureka 30 Comment
  CAS-BOT-BC241491  Lonicera involucrata var. ledebourii C. Hart Merriam 1922-7-4 s.n. Humboldt Fortuna Comment
  CHSC23308  Lonicera involucrata var. ledebourii Robert F. Thorne; P. Everett 1965-8-9 35301 Humboldt Big Lagoon 3 Comment
  HSC77902  Lonicera involucrata var. ledebourii L. P. Janeway 1984-5-16 797 Humboldt N Spit of Humboldt Bay, on the W side of Samoa Road ca. 1/4 mi. N of the boat ramp. 5 Comment
  HSC89435  Lonicera involucrata var. ledebourii P. A. Daly 1984-5-13 24 Humboldt Along trail/Rd. at Trinidad Head. 61 Comment
  UC1225814  Lonicera involucrata var. ledebourii Joseph P. Tracy 1943-5-21 17413 Humboldt Alton North Coast Ranges, Van Duzen River 30 Comment
  UC180197  Lonicera involucrata var. ledebourii Joseph P. Tracy 1914-6-14 4506 Humboldt near Hydesville; Northern Coast Region 60 Comment
  SEINET5736925 Image available Lotus Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6108 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 4.5 miles to collection site. Comment
  HSC1873  Lotus aboriginus H. E. Parks Jul 1932 Humboldt Bishop Pine Lodge, Trinidad 61 Comment
  JEPS25684  Lotus aboriginus P. C. Hutchison 1961-5-22 2007 Humboldt 14.3 mi e Arcata junction with U.S. Hwy. 101 (on Hwy 299) Comment
  POM210206  Lotus aboriginus H. E. Parks 1932-07 3698 Humboldt Bishop Pine Lodge, Trinidad. 61 Comment
  HSC97945  Lotus crassifolius var. crassifolius Cara Witte 2007-6-26 357 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36A. 1348 Comment
  HSC97498  Lotus micranthus Cara Witte 2007-5-21 60 Humboldt White Oak Opening. 1257 Comment
  UC162848  Lotus nevadensis var. nevadensis Joseph P. Tracy 1908-6 2913 Humboldt nw slope Buck Mountain; Northern Coast Ranges 1219 Comment
  UC179939  Lotus purshianus var. purshianus Joseph P. Tracy 1914-7-12 4583 Humboldt Eureka Northern Coast Region 0 Comment
  UC1223419  Lotus purshianus var. purshianus Joseph P. Tracy 1937-8-12 15628 Humboldt 3 mi s Murphy Meadows (at border of Lake Prairie Bog); Bald Mountain, Lake Prairie, Lake Prairie Bog 1066 Comment
  UC176274  Lotus purshianus var. purshianus Joseph P. Tracy 1913-7-20 4386 Humboldt Redwood Creek, at crossing of Willow Creek road Northern Coast Ranges 304 Comment
  UCD106710  Lotus uliginosus R. Tofsrud 1948-7-1 s.n. Humboldt Between Fields Landing and Loleta. Comment
  HSC57342  Lotus unifoliolatus var. unifoliolatus Overton, Butler 1979-7-26 10118 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  UC495723  Lotus wrangelianus Joseph P. Tracy 1932-5-1 9886 Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  SEINET12151354  Lotus yollabolliensis J. P. Tracy 1941-1 17048 Humboldt South Fork Mtn, nr Blake Lookout 1737 Comment
  HSC70698  Luina hypoleuca Gail Newton 1980-7-15 1554 Humboldt Near Sims Mtn. 1311 Comment
  CAS-BOT-BC342558  Luina hypoleuca Carl B. Wolf 1937-8-9 9086 Humboldt Klamath River, 5 7/10 mi. above Orleans Comment
  CAS-BOT-BC60240  Lunaria annua L. B. Kildale 1930-8-3 10359 Humboldt Chaparall Mountain at Bug Creek. 914 Comment
  HSC6869  Lunaria annua D. Zittin 1970-5-13 1 Humboldt Arcata Comment
  CAS-BOT-BC201189  Lupinus Volney Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  SEINET5736964 Image available Lupinus Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6113 Humboldt Collected in a waste area along Giuntoli Lane in Arcata. Adjacent to Eureka Sand and Gravel company and across the road from T.P. Tire Service (1265 Giuntoli Lane).; Arcata Comment
  UC1223280  Lupinus adsurgens Joseph P. Tracy 1950-6-18 18849 Humboldt Wilder Ridge Comment
  UC503010  Lupinus affinis Joseph P. Tracy 1932-5-1 9877 Humboldt vicinity Garberville; Northern Coast Ranges, vicinity of Garberville 121 Comment
  UC503004  Lupinus albicaulis var. shastensis Joseph P. Tracy 1932-6-14 10161 Humboldt Trinity River Valley at Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC176296  Lupinus albifrons Joseph P. Tracy 1913-6-14 4133 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UC146921  Lupinus albifrons var. albifrons Harley P. Chandler June, 1901 1424 Humboldt Weitchpek North Coast Ranges, Klamath River (Klamath River) 304 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
  HSC58413  Lupinus andersonii Griswold, Butler 1979-7-12 7173 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC49997  Lupinus andersonii M. A. Baker 1979-6-7 789 Humboldt W slope of Snow Mtn. 762 Comment
  HSC14772  Lupinus arboreus R. I. Bonn 1965-5-9 43 Humboldt 4 mi. W of Arcata on Lanphere Rd. Comment
  HSC14774  Lupinus arboreus J. W. Johnson 1961-11-20 Humboldt Arcata, Christenson Farm., Samoa Peninsula Comment
  HSC14779  Lupinus arboreus Francis Winter 1960-5-6 Humboldt Little River State Park, N of Arcata Comment
  SEINET10488497  Lupinus arboreus Chester T. Dziekanowski, David B. Dunn; Charlene A. Bennett 1976-8-6 Dziekanowski 2501 Humboldt In the vicinity of a state park on the beach opposite mckinleyville. Vast Colony of yellow lupinus arboreus 3 Comment
  RSA407034  Lupinus arboreus var. arboreus M. B. Dunkle 1936-8-18 4809 Humboldt Fortuna. Comment
  CDA27401  Lupinus bicolor J. Lumbert, J. Robinson 2005-6-8 6 Humboldt 0.4 mile south of Highway 299 on Titlow Hill Road. Comment
  HSC14796  Lupinus bicolor J. W. Johnson 1962-4-18 1249 Humboldt Arcata, Mad River County Park. Comment
  UC1197278  Lupinus bicolor Joseph P. Tracy 1913-6-25 4334 Humboldt opposite Buck Mountain (Dinsmore's Ranch, Valley of Van Duzen River); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  JEPS82142  Lupinus constancei Thomas W. Nelson and Jane P. Nelson 1982-7-9 7079 Humboldt Mt. Lassic (Signal Peak) and saddle to e North Coast Ranges, Blockburg Quad., Mt. Lassic (Signal Peak; Blocksburg Quadrangle on Mt. Lassic (Signal Peak), Humboldt Co. 1767 Comment
  SEINET10841279  Lupinus elmeri Charles Piper Smith 1947-7-14 Smith 47668 Humboldt Blake lookout rd., S fork mountain, 0.3 mi. N of hyampom trail sign. Comment
  UC1223282  Lupinus formosus Joseph P. Tracy 1941-9-1 16997 Humboldt Blue Lake Comment
  JEPS82235  Lupinus lapidicola Roger Raiche 1983-7-19 30538 Humboldt King Range, Saddle Mountain, King Ridge Trail Rd. Saddle Mountain; King Range, , King Ridge Trail Rd. 853 Comment
  POM66233  Lupinus latifolius subsp. latifolius Marcus E. Jones 1924-4-25 s.n. Humboldt Garberville Comment
  HSC74224  Lupinus latifolius subsp. viridifolius M. A. Baker 1980-7-19 3018 Humboldt Near Bret Hole. 1814 Comment
  UC865228  Lupinus latifolius var. latifolius Elizabeth Parsons Hawver June 1915 Humboldt Carlotta Comment
  RSA26960  Lupinus luteolus C. Leo Hitchcock, J. S. Martin 1939-7-11 5421 Humboldt 65 miles E of Arcata, bank near road. 457 Comment
  HSC39420  Lupinus lyallii var. villosus Thomas W. Nelson, Jane P. Nelson 1976-6-15 2710 Humboldt Along Trail from lookout to Blocksburg 1524 Comment
  POM92971  Lupinus polyphyllus subsp. polyphyllus L. R. Abrams 1922-6-25 8251 Humboldt Arcata Comment
  UC1197252  Lupinus polyphyllus var. polyphyllus Joseph P. Tracy 1897-6-23 202 Humboldt Elk River Valley Northern Coast Region, Humboldt Bay Region, Elk River Valley (region about Humboldt Bay) 0 Comment
  HSC14864  Lupinus rivularis T. W. Beck 1963-4-27 36 Humboldt Humboldt Meridian. Camp Bauer, Korbel. Near the Mad River. Comment
  HSC89503  Lupinus rivularis M. Roantree 1985-5-30 76 Humboldt E side of Trinidad Head along dirt road Comment
  SEINET10488861  Lupinus rivularis Smith 1948-5-4 Smith 48203 Humboldt Hwy. 101--Orick, n of bridge. Comment
  SEINET3069359 Image available Lupinus tracyi J. P. Tracy 1932-7-15 10598 Humboldt on ridges east on Corral Prairie, Trinity Summit Comment
  HSC27555  Luzula comosa J. D. Ackerman 1973-3-27 36 Humboldt 1.5 mi. N of Manila Comment
  HSC74171  Luzula comosa M. A. Baker 1980-7-23 3182 Humboldt Near Orleans Mtn. 1859 Comment
  HSC98044  Luzula comosa Cara Witte 2007-5-31 163 Humboldt Buck Flat. Intersection of National Forest 1 and 5N01. 1547 Comment
  HSC14165  Luzula comosa S. R. Johnson 1965-4-30 47 Humboldt 0.5 mi. N of Luffenholtz Beach Comment
  CAS-BOT-BC436746  Luzula comosa var. comosa Harley P. Chandler 1901-5-1 1159 Humboldt North Coast Ranges: Humboldt Bay 30 Comment
  UCSB587  Luzula parviflora Parks, H.; Parks, S. 1952-06 Humboldt Bishop Pine Lodge; Trinidad Comment
  SDSU11831  Luzula parviflora W. A. Bemis 1964-5-8 277 Humboldt Freshwater forest, Freshwater. 61 Comment
  SEINET11790244  Luzula parviflora Unknown 1936-1 13278 Humboldt near Trinidad Comment
  UCSB25509  Luzula parviflora Breedlove, Dennis 1962-6-8 Humboldt along U.S. Highway 101; 8 miles north of Orick 60 Comment
  HSC102061  Luzula parviflora subsp. parviflora M. R. Mesler, Robin Bencie, K. A. Wayman 2011-7-12 1162 Humboldt Patterson Meadows 1566 Comment
  UC1103686  Luzula subsessilis Joseph P. Tracy 1921-4-24 5449 Humboldt Northern Coast Ranges. Phillipsville Flat South Fork Eel River 91 Comment
  RSA590653  Lycopodiella inundata Doris K. Kildale 1929-7-10 s.n. Humboldt Big Lagoon Comment
  CAS-BOT-BC61929  Lycopodium clavatum Gordon E. McBride 1963-4-1 s.n. Humboldt 2 miles E of Trinidad 152 Comment
  UCSC001038  Lycopodium clavatum W. Jan Rowe 1967-7-8 61 Humboldt 4.5 miles southeast of Trinidad Trinidad Comment
  UC1222700  Lysichiton americanus Joseph P. Tracy 1950-4-20 18612 Humboldt along Van Duzen R. 1 mi. w. Dinsmore's; Van Duzen R. Comment
  JEPS45971  Lythrum hyssopifolia W. L. Jepson 1902-8-4 2146 Humboldt near Petrolia ( Expedition from Ukiah to the Hupa Indian Reservation) Comment
  HSC59458  Lythrum hyssopifolia M. A. Erickson 1979-5-18 299 Humboldt On railroad right-of-way 25 yards N of Arcata Redwood Company main gate located between Arcata and Eureka. Comment
  HSC90841  Lythrum hyssopifolia Leonel Arguello 1989-6-10 Humboldt Lanphere-Christensen Dunes Preserve, 3 mi. W of Arcata, at the end of the Fernstrom-Root trail, along W border of the salt marsh. Comment
  CAS-BOT-BC342802  Madia elegans J. Clausen 1932-9-18 688 Humboldt 8.2 miles west of Bull Creek Store; near summit of ridge 914 Comment
  UC673206  Madia elegans Lincoln Constance and Reed C. Rollins 1942-5-11 2875 Humboldt 5 mi s Hoopa; North Coast Ranges, Hoopa Valley 121 Comment
  POM265905  Madia elegans subsp. vernalis Lincoln Constance, Reed C. Rollins 1942-5-11 2874 Humboldt Hoopa Valley, 5 miles south of Hoopa. 122 Comment
  HSC73178  Madia exigua M. A. Baker 1980-5-18 1336 Humboldt Near Black Mtn. 792 Comment
  BLMAR641  Madia exigua Jennifer Wheeler 2011-6-21 641 Humboldt Lacks Creek, Stormy saddle prairie 1158 Comment
  JEPS22206  Madia gracilis Joseph P. Tracy 1931-6-28 9588 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Buck Mountain 762 Comment
  UC581814  Madia gracilis Joseph P. Tracy 1933-7-21 12817 Humboldt on road from Van Duzen River to South Yager; Bald Hills region, Redwood House 762 Comment
  POM284946  Madia madioides Lyman Benson 1929-7-16 1868 Humboldt Weott Ranger Station. Comment
  CHSC69499  Madia sativa Vernon Oswald; Lowell Ahart 1997-9-4 8854 Humboldt Samoa Dunes Recreation Area at the south end of the North Spit separating Humboldt Bay from the ocean. 0 Comment
  HSC37970  Madia sativa Peter Sorensen 1976-7-15 Humboldt Woodley Island Comment
  RSA0011631  Madia sativa R. F. Thorne, Percy C. Everett 1965-8-7 35216 -b Humboldt Samoa Peninsula. 0 Comment
  UC581812  Madia sativa Joseph P. Tracy 1936-8-24 15178 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  RSA2932  Mahonia nervosa C. B. Wolf 1931-8-29 1243 Humboldt Near summit of Orick Hill on road to Weitchpec. 304 Comment
  HSC15589  Maianthemum dilatatum Wm. F. Bowman 1968-10-26 Humboldt Big Lagoon County Park, SW corner of Big Lagoon. Comment
  CAS-BOT-BC508519  Maianthemum dilatatum Alice Eastwood 1907-4-21 35 Humboldt Port Trinidad Comment
  HSC15597  Maianthemum dilatatum W. D. Stevens 1964-5-12 15 Humboldt E end of 14th St., Arcata Comment
  HSC15649  Maianthemum racemosum subsp. amplexicaule J. F. Knezevich 1968-5-21 447 Humboldt 20 mi. E of Arcata on Hwy. 299 at Lord Ellis Summit Comment
  HSC70842  Maianthemum racemosum subsp. amplexicaule Gail Newton 1980-6-16 185 Humboldt Near Onion Mtn. 1280 Comment
  HSC100563  Maianthemum racemosum subsp. amplexicaule Carl C. Marshall Apr 1886 128 Humboldt Damp woods. Comment
  HSC34159  Maianthemum stellatum Linda M. Barker 1974-5-11 177 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC56979  Maianthemum stellatum Overton, Butler 1979-7-23 9516 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC98152  Maianthemum stellatum T. W. Beck 1963-4-13 19 Humboldt Camp Bauer, Korbel, near Mad River Comment
  HSC98154  Maianthemum stellatum Jack Rockwell 1962-4-29 38 Humboldt E bank of Redwood Creek, near Hwy. 299 549 Comment
  RSA1806  Malus fusca Carl B. Wolf 1930-10-26 1766 Humboldt south edge of Big Lagoon, near the Redwood highway bridge. 3 Comment
  RSA246761  Malus fusca Robert F. Thorne 1965-8-9 35300 Humboldt Big Lagoon. 3 Comment
  UC1197979  Malva nicaeensis Joseph P. Tracy 1924-6-28 6699 Humboldt Northern Coast Ranges, Hydesville Hydesville; Northern Coast Ranges, Hydesville 60 Comment
  HSC7036  Marah oregana Francis Winter 1960-3-26 Humboldt Samoa Peninsula 6 mi. W of Arcata Comment
  UCR27001  Marah oregana A. C. Sanders 1981-8-4 2261 Humboldt Patrick's Point State Park, north of Eureka 30 Comment
  UC562356  Marah oregana Joseph P. Tracy 1933-5-20 12227 Humboldt s of point Cape Mendocino 3 Comment
  RSA246904  Matricaria matricarioides R. F. Thorne, Percy C. Everett 1965-8-8 35269 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  HSC25766  Medicago lupulina Jana Kattenhorn 1970-10-28 150 Humboldt Mad River Bottoms, N Bank off Essex, off Hwy. 299 Comment
  UC673067  Medicago polymorpha Joseph P. Tracy 1936-6-8 14869 Humboldt Trinidad Bluffs Trinidad 3 Comment
  HSC15527  Medicago polymorpha J. Lackey 1971-3-28 10 Humboldt 3 mi. S of Cape Mendocino on Capetown Rd. Comment
  UC1103762  Melica bulbosa Joseph P. Tracy 1927-5-22 8073 Humboldt Kneeland Prairie; Northern Coast Range 762 Comment
  UC1103760  Melica californica Joseph P. Tracy 1950-6-15 18780 Humboldt 5 mi n Harris; Mail Ridge 944 Comment
  UC552699  Melica harfordii Joseph P. Tracy 1935-7-14 14079 Humboldt Grouse Mountain; North Coast Ranges 1524 Comment
  HSC10348  Melica subulata G. N. Bos 1965-5-15 253 Humboldt 8 mi. W of Berry Summit, along Hwy. 299 762 Comment
  HSC38428  Melica subulata Dennis Anderson, J. P. Smith 1971-6-18 - 1055 Humboldt 1 mi. W of Lord Ellis Summit. Comment
  UC526917  Melica subulata Joseph P. Tracy 1933-7-26 12910 Humboldt Grouse Mountain; North Coast Ranges 1524 Comment
  HSC10375  Melica torreyana A. H. Murphy 1951-4-18 20 Humboldt Ft. Seward. 183 Comment
  UC1197423  Melilotus albus Joseph P. Tracy 1920-8-15 5359 Humboldt Bluff Creek Northern Coast Ranges, Klamath River 152 Comment
  HSC43242  Melilotus albus R. Sutherland 1976-8-6 11 .6876 Humboldt 229 Comment
  UC162806  Melilotus indicus J. P. Tracy October 1904 2142 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC34216  Mentha pulegium J. P. Smith 1975-7-6 8356 Humboldt Sizzler Steak House on 5th St. Eureka Comment
  RSA424585  Mentha pulegium T. S. Elias, Barbara A. Elias 1987-8-26 10627 Humboldt Fernbridge, 0.5 mile S of Route 101; along West bank of Eel River, about 0.5 mile N of bridge Comment
  UCSB30615  Mentha pulegium Edwards, David 1974-8-1 Humboldt East side of dirt road on E. bank of Mad River near its junction with Puter Creek, ca. 2 mi. SW of Korbel 27 Comment
  JEPS63443  Mentha spicata Joseph P. Tracy 1925-8-16 7233 Humboldt Trinity River Valley near the South Fork; Northern Coast Ranges, Trinity River Valley near South Fork 182 Comment
  UC154038  Menziesia ferruginea Joseph P. Tracy 1909-10-6 3110 Humboldt Head of Prairie Creek Prairie Creek; Northern Coast Ranges, Head of Prairie Creek 304 Comment
  SEINET3410193 Image available Micranthes ferruginea Joseph P. Tracy 1935-7-24 14186 Humboldt Trinity Summit; Rocky exposed places, Near Ranger Station 1829 Comment
  HSC73145  Micropus californicus M. A. Baker 1980-5-18 1329 Humboldt Near Black Mountain 390 Comment
  CAS-BOT-BC322684  Microseris laciniata Lincoln Constance 1934-5-24 624 Humboldt S. slope of Lower Look Prairie, South Fork Eel River 182 Comment
  UC582734  Microseris nutans Joseph P. Tracy 1930-7-16 8900 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  UC538045  Microseris nutans E. B. Babcock 1932-6-25 405 Humboldt n slope South Fork Mt. (Humboldt-Trinity Counties) 1524 Comment
  UC582732  Microseris nutans Joseph P. Tracy 1933-7-9 12653 Humboldt Brannan Mountain North Coast Ranges 1066 Comment
  HSC102010  Microsteris gracilis M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 911 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC98617  Microsteris gracilis Cara Witte 2007-5-23 111 Humboldt Grouse Mountain Lookout. Forest Service Road 4N70. 1635 Comment
  UC1196832  Mimulus arvensis Joseph P. Tracy 1929-4-28 8554 Humboldt near South Fork; Trinity River Valley 182 Comment
  UC175482  Mimulus arvensis Joseph P. Tracy 1912-7-31 3903 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Burr Valley 1066 Comment
  HSC99126  Mimulus breweri Cara Witte, Michael Scott 2007-6-22 341 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1/5 mile after intersection with 4N38. 1486 Comment
  HSC70513  Mimulus cardinalis Thomas W. Nelson, Jane P. Nelson 1977-8-6 3685 Humboldt Along Mad River at Anderson's Ford 640 Comment
  UC162579  Mimulus cardinalis Joseph P. Tracy 1911-7-10 3480 Humboldt tributary of Trinity River (along Willow Creek near mouth); Northern Coast Ranges 243 Comment
  SBBG15433  Mimulus dentatus H. and M. Dearing 1939-5-27 3453 Humboldt Russ Grove Redwoods Comment
  UC1196774  Mimulus dentatus J. P. Tracy 1901-6-10 1126 Humboldt Forest Park Eureka 0 Comment
  SEINET10570226  Mimulus floribundus Charlene A. Bennett 1976-8-6 Bennett 484 Humboldt Collected by hwy 101, n side of orick. Rocky area, densely forested by river. Comment
  HSC74642  Mimulus guttatus M. A. Baker 1980-5-18 1366 Humboldt Near Black Mtn. 792 Comment
  UC582700  Mimulus guttatus Joseph P. Tracy 1932-7-16 10612 Humboldt Corral Prairie Trinity Summit 1584 Comment
  RSA14135  Mimulus guttatus Elmer I. Applegate 1923-9-10 3995 Humboldt Stone Lagoon. 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
  JEPS10790  Mimulus inodorus Joseph P. Tracy 1934-8-6 13561 Humboldt near Blue Lake; Mad River 15 Comment
  JEPS10788  Mimulus inodorus Joseph P. Tracy 1923-9-16 6551 Humboldt near South Fork; Trinity River Valley 182 Comment
  JEPS10789  Mimulus inodorus Joseph P. Tracy Jul 16 1930-Jul 19 1930 8983 Humboldt McKay Camp Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC582599  Mimulus layneae Joseph P. Tracy 1937-6-27 15382 Humboldt w of mouth South Fork of Trinity River; Friday Ridge 1219 Comment
  UC1196830  Mimulus microphyllus Joseph P. Tracy 1933-8-6 12932 Humboldt Lyons Ranch Bald Hills 762 Comment
  UC582696  Mimulus microphyllus Joseph P. Tracy 1936-5-29 14818 Humboldt French Camp Ridge 1066 Comment
  HSC55736  Mimulus moschatus G. L. Clifton, Griswold 1979-7-26 10233 Humboldt Near High Spring, close to the town of Forks of Salmon 2024 Comment
  HSC56133  Mimulus moschatus G. L. Clifton, Griswold 1979-8-1 11951 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  HSC20782  Mimulus moschatus W. D. Stevens 1967-7-22 49 Humboldt Above the dirt road from old Hwy. 101 to the top of N bank of Mad River Comment
  HSC44829  Mimulus moschatus Thomas W. Nelson, Jane P. Nelson 1977-7-4 3598 Humboldt Margin of pond above Alder Springs 1585 Comment
  HSC72487  Mimulus moschatus J. P. Smith, Steve Selva 1970-6-30 4118 Humboldt Comment
  RSA447971  Mimulus moschatus Thomas W. Nelson, Jane P. Nelson 1977-7-4 3606 Humboldt Along road north from Alder Springs. 1524 Comment
  HSC103113  Mimulus nanus M. Mesler 2010-7-21 837 Humboldt South Fork Mtn, FS rd 4N12 1700 Comment
  HSC75461  Mimulus primuloides J. O. Sawyer 1980-7-18 3610 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  HSC55694  Mimulus pulsiferae Overton, Butler 1979-7-26 10015 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  CAS-BOT-BC388630  Minuartia douglasii Carl B. Wolf 1937-6-14 8822 Humboldt North Coast Range, Kneeland Prairie 822 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
  SEINET11943609  Minuartia douglasii H. P. Chandler 1901-1 1454 Humboldt Klamath River 305 Comment
  HSC39552  Minuartia nuttallii subsp. gregaria Thomas W. Nelson 1976-6-14 2705 Humboldt S of Lassic Peak 1524 Comment
  HSC58019  Minuartia pusilla G. L. Clifton 1979-7-31 11821 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  CAS-BOT-BC433068  Mitella trifida Joseph P. Tracy 1932-7-13 10503 Humboldt Klamath Mountains, Trinity Summit. Near Corral Prairie. 1524 Comment
  HSC76262  Mitella trifida Teresa Prendusi 1981-7-21 270 Humboldt Near Whiteys Peak 1646 Comment
  HSC58246  Moehringia macrophylla G. L. Clifton, Griswold 1979-8-2 12424 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC74644  Moehringia macrophylla M. A. Baker 1980-5-17 1223 Humboldt Near Le Perron Peak 792 Comment
  UC8146  Moehringia macrophylla Harley P. Chandler June, 1901 1284 Humboldt Hupa Indian Reservation; North Coast Ranges, Hupa Indian Reservation 1097 Comment
  UC1239678  Monardella odoratissima subsp. pallida Joseph P. Tracy 1932-7-12 10436 Humboldt Corral Prairie Trinity Summit 1584 Comment
  RSA33443  Monardella odoratissima subsp. pallida Carl B. Wolf 1937-8-13 9269 Humboldt North Coast Range, 12 miles E of Hoopa Valley on new road towards Trinity Summit. 1677 Comment
  UC1239679  Monardella purpurea Joseph P. Tracy 1935-7-14 14075 1/2 Humboldt Back of White Rock Springs; North Coast Ranges, Grouse Mountain 1554 Comment
  CAS-BOT-BC220256  Monardella sheltonii Carl B. Wolf 1937-8-13 9223 Humboldt North Coast Range, 8 mi. E. of Hoopa Valley on New Road towards Trinity Summit 1219 Comment
  CAS-BOT-BC220517  Monardella villosa C. D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  SEINET4173659 Image available Monardella villosa Joseph P. Tracy 1939-8-5 16381 Humboldt Dinsmore's Comment
  RSA0022787  Monardella villosa subsp. subserrata Carl B. Wolf 1934-7-3 5923 Humboldt Weitchpec (junction of Klamath and Trinity Rivers). 200 yards west of school. 152 Comment
  RSA0022803  Monardella villosa subsp. subserrata L. R. Abrams 1922-6-25 8221 Humboldt Camp Cemi [?], north Garberville. Comment
  UC1239681  Monardella villosa subsp. villosa Joseph P. Tracy 1936-6-27 15005 Humboldt Miranda South Fork Eel River 121 Comment
  UC2035871  Monardella villosa subsp. villosa C. Epling 1938-1 Humboldt Klamath River near Orleans. Comment
  CAS-BOT-BC444803  Montia diffusa Joseph P. Tracy 1937-6-27 15379 Humboldt Four-Mile Creek (west of mouth of South Fork of Trinity). 670 Comment
  UC183597  Montia fontana Joseph P. Tracy 1913-6-17 41621 1/2 Humboldt Buck Mountain, near the summit Buck Mountain; Northern Coast Ranges, Buck Mountain 1524 Comment
  HSC96218  Montia linearis J. McIntire, S. Lyon 2005-6-3 1 Humboldt 19.3 mi. S of Hwy. 299 on FS Rd. NF1 1280 Comment
  CAS-BOT-BC445151  Montia parvifolia I. L. Wiggins 1932-7-7 5879 Humboldt Near Samoa Comment
  JEPS17211  Montia parvifolia Milo S. Baker 1923-7-31 143 a Humboldt 6 mi s of Kneeland (and w of Iaqua, Booths Run); North Coast, Booths Run Comment
  HSC16102  Morella californica H. E. Parks Mar 1934 4833 Humboldt Spruce Cove, Trinidad Comment
  HSC37958  Morella californica Peter Sorensen 1976-6-12 Humboldt Woodley Island, Humboldt Bay Comment
  HSC38339  Morella californica Peter Sorensen 1976-6-14 Humboldt N Spit of Humboldt Bay, S of Samoa Comment
  HSC58681  Muhlenbergia filiformis G. L. Clifton, Griswold 1979-8-2 12276 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UCD86802  Muhlenbergia mexicana Joseph P. Tracy 1916-9-5 4774 Humboldt South Fork of Eel River, 4 miles above the mouth. 60 Comment
  UCD86804  Muhlenbergia mexicana Joseph P. Tracy 1918-9-29 5115 Humboldt South Fork of Eel River, 4 miles above the mouth. 60 Comment
  HSC104051  Myosotis latifolia E. R. Fyer 2015-4-29 32 Humboldt Arcata Community Forest 166 Comment
  UCR179282  Myosotis latifolia R. G. Swinney 1968-3-29 239 Humboldt East of Humboldt State College, Arcata 152 Comment
  UC275529  Myrica californica Joseph P. Tracy 1924-1-20 6596 Humboldt near Samoa (around Humboldt Bay); Northern Coast Region, Humboldt Bay 6 Comment
  HSC77885  Myriophyllum aquaticum Wendy Madar 1978-5-16 Humboldt Catfish Lake, 3 mi. S Eureka Comment
  HSC77925  Myriophyllum hippuroides Peter Steclel Nov 1977 Humboldt Growing in Prairie Lake Comment
  UC1173635  Narthecium californicum Joseph P. Tracy 1930-7-17 9003 Humboldt meadow at McKay Camp (S. Fork Mt.); S. Fork Mt. 1676 Comment
  JEPS70235  Navarretia atractyloides Joseph P. Tracy 1925-7-12 7206 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  UC162572  Navarretia atractyloides Joseph P. Tracy 1911-7-4 3302 Humboldt along Willow Creek (tributary of Trinity River) near its mouth Northern Coast Ranges, Trinity River, Willow Creek 182 Comment
  HSC32561  Navarretia mellita Thomas W. Nelson 1973-9-3 1118 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC13590  Nemophila menziesii Elrid H. Spinas 1948-5-15 4 Humboldt Horse Mtn. Comment
  RSA244978  Nemophila menziesii var. atomaria D. E. Anderson 1965-4-24 3532 Humboldt Along Titlow Hill Road. Comment
  BLMAR172  Nemophila pedunculata Donald Hazlett 1994-6-7 172 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  UC562591  Nemophila pedunculata Joseph P. Tracy 1927-4-10 7890 Humboldt Berry's North Coast Ranges, Redwood Creek 274 Comment
  CAS-BOT-BC233456  Nicotiana glauca Clare R. Wheeler 1979-8-13 1205 Humboldt Avenue of the Giants, SW Mailliard Grove, Humboldt State Park 152 Comment
  HSC57344  Noccaea fendleri subsp. glauca Walter Overton, Marvin Butler 1979-7-26 10027 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  HSC49510  Nuphar polysepala R. York 1979-4-16 263 Humboldt Along Hwy. 101 across from Clam Beach between Westhaven and McKinleyville 0 Comment
  HSC59483  Nuttallanthus texanus M. A. Ericksen 1979-4-29 242 Humboldt 0.4 mi. N of Coast Guard Station, Samoa Peninsula. Comment
  UC916666  Oenanthe pimpinelloides Joseph P. Tracy 1950-8-18 19330 Humboldt along Blocksburg rd. near bridge across Larrabee Creek 457 Comment
  RSA246753  Oenanthe sarmentosa R. F. Thorne, P. Everett 1965-8-7 35212 Humboldt Samoa Peninsula: near sea level Comment
  UC642332  Oenanthe sarmentosa Joseph P. Tracy 1927-9-25 8376 Humboldt at Eureka Eureka 6 Comment
  UC642334  Oenanthe sarmentosa Joseph P. Tracy 1936-8-17 15149 Humboldt near Field's Landing 6 Comment
  HSC16486  Oenothera glazioviana Jerry Parker 1968-10-1 78 Humboldt 0.5 mi. N of Dows Prairie School Comment
  HSC92715  Oenothera villosa subsp. strigosa D. K. Imper 1985-7-15 Humboldt About 1 mi. S of Orleans on E side of Hwy. 96 43 Comment
  JEPS69030  Orobanche californica subsp. grayana Theodore F. Niehaus 1972-8-29 934 Humboldt About 1/4-1/2 mile east on old horse trail (to Trinity Summit Station), directly from crossing of new forest road at Oregon Creek. Oregon Creek a tributary of upper Tish-Tang a Tang Creek, Western Salmon Mountains. Comment
  HSC16675  Orobanche uniflora T. M. Mingo May 1965 Humboldt W of College cove near brush Comment
  UC1197443  Orobanche uniflora subsp. occidentalis Mrs. Frank A. Graham 1921-4-1 Humboldt Northern Coast Ranges. Trinity River Valley, near Willow Creek. Comment
  UC1197445  Orobanche uniflora subsp. occidentalis Joseph P. Tracy 1948-5-31 18004 Humboldt Near Harris. Comment
  HSC56040  Orthocarpus imbricatus G. L. Clifton, Terry Griswold 1979-7-31 11605 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC73578  Osmorhiza berteroi M. A. Baker 1980-7-19 3012 Humboldt Near Bret Hole. 1814 Comment
  HSC100688  Osmorhiza nuda Carl C. Marshall May 1886 193 Humboldt Waste grounds. Comment
  JEPS154  Osmorhiza occidentalis W. L. Jepson Jul 16 1902-Jul 23 1902 2045 Humboldt Trinity Summit 2133 Comment
  HSC22861  Osmorhiza purpurea D. E. Anderson 1965-5-1 3562 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC16720  Oxalis articulata subsp. rubra J. E. Lankila 1962-5-6 11 Humboldt About 1/4 mi. N of Price Creek Comment
  HSC47502  Oxalis oregana Sheila Logan 1978-4-10 28 Humboldt McKinleyville, foot of Hiller Ave. at Ocean Rd., near Pacific ocean and Mad River 46 Comment
  RSA55090  Oxalis oregana R. Kent Beattie 1920-9-20 5921 Humboldt Strongs Station on Van Duzen Fork of Eel River Comment
  SEINET516268  Oxalis pes-caprae Vernon H. Oswald 1998-4-16 8917 Humboldt Samoa Dunes Recreation Area at the south tip of the North Spit of Humboldt Bay. Comment
  SEINET3347162 Image available Oxalis trilliifolia A. A. Heller 13787 Humboldt Humbolt Camp, between Scotia and Pepperwood Comment
  UC33881  Panicum capillare Chestnut and Drew 1888-8-1 Humboldt Grouse Creek Comment
  UC1145035  Panicum oligosanthes var. scribnerianum Joseph P. Tracy 1950-8-20 19324 Humboldt 8 mi below Orleans; Klamath River near Slate Creek 121 Comment
  HSC94174  Parapholis incurva Gordon Leppig, Sylvia Leppig 2000-5-29 1385 Humboldt Trinidad Harbor. 4 Comment
  RSA624795  Parapholis incurva Gordon Leppig, Sylvia Leppig, Kai Neander 1998-5-25 788 Humboldt Big Lagoon State Park. 2 Comment
  UC1409051  Parentucellia viscosa Robert F. Thorne and P. Everett 1965-8-7 35202 Humboldt Samoa Peninsula Comment
  UC1478544  Parentucellia viscosa Robert F. Thorne 1974-7-29 45075 Humboldt Samoa Dunes Comment
  SEINET10810981  Parentucellia viscosa J. Richard Abbott, B. S. Carlsward 1999-7-7 Abbott 13017 Humboldt North of McKinleyville on U.S. 101 (a few kilometers north of Eureka), on northbound off-ramp (southbound labelled as Route 101 Business) leading to Clam Beach County Park. Comment
  UC526851  Paspalum distichum Joseph P. Tracy 1934-8-14 13581 Humboldt South Fork of Eel River, 1 mi above its mouth 60 Comment
  UC1222231  Pectocarya pusilla Joseph P. Tracy 1948-5-31 18003 Humboldt ca 1/2 mi w Harris (up hill toward Spruce Grove) 762 Comment
  UC169090  Pedicularis densiflora Mrs. M. H. Manning 1902-2 Humboldt near Hupa Comment
  BLMAR286  Pedicularis densiflora Jennifer Anthony-Wheeler 2000-4-18 286 Humboldt King range, mill creek forest 402 Comment
  HSC55334  Pedicularis racemosa Terry Griswold, Marvin Butler 1979-7-12 7178 Humboldt Near Groves Prairie, close to the town of Willow Creek 1256 Comment
  HSC76045  Pedicularis racemosa Walter Overton, Marvin Butler 1979-8-2 12563 Humboldt Near Bret Hole, close to the town of Hoopa. 1554 Comment
  UCD137663  Pellaea brachyptera Freed W. Hoffman 1949-7-15 3007 Humboldt Mount Lassic area a little south of Blue Ridge; Mule Slide. Comment
  HSC55332  Penstemon anguineus Terry Griswold, Marvin Butler 1979-7-12 7176 Humboldt Near Groves Prairie, close to the town of Willow Creek 1256 Comment
  JEPS7203  Penstemon anguineus W. L. Jepson 1902-7-24 2112 Humboldt Trinity Summit 1828 Comment
  UC1586978  Penstemon anguineus Juha Pykala and D. H. Norris 1987-6-11 1564 Humboldt sw North Trinity Mountain (North Trinity Mountain Wilderness); North Trinity Mountain Wilderness Comment
  RSA43894  Penstemon deustus subsp. deustus H. M. Pollard 1947-8-30 s.n. Humboldt North road along Klamath River near Van Fleet Ranch, Orleans region. Comment
  JEPS11239  Penstemon deustus var. deustus Joseph P. Tracy 1935-7-28 14327 Humboldt Head of Devil's Hole Trinity Summit, Head of Devil's Hole 1828 Comment
  HSC73698  Penstemon laetus subsp. sagittatus M. A. Baker 1980-7-15 2971 Humboldt Near Whiting Ridge. 1341 Comment
  HSC49982  Penstemon laetus subsp. sagittatus M. A. Baker 1979-6-7 782 Humboldt N bank of road to Snow Mtn. 610 Comment
  NY641286  Penstemon rattanii F. W. Pennell 1940-7-8 26105 Humboldt Kneeland 670.6 Comment
  UCD137766  Pentagramma triangularis M. Wiesendanger 1928-4-7 909 Humboldt Redwood Highway, Lane's Redwood Flat. Comment
  HSC1085  Pentagramma triangularis J. Wendell Howe May 1931 Humboldt Horse Mtn. Comment
  RSA0094699  Pentagramma triangularis Ira L. Wiggins 1957-6-21 14139 Humboldt On E side of road, 1 mi. S of Garberville. Comment
  SEINET200760  Perideridia gairdneri Joseph P. Tracy 1948-9-5 18167 Humboldt Happy Camp Mountain. In Trinity Summit Range 6 miles NE of Hawkins Bar. 1280 Comment
  UC709387  Perideridia gairdneri subsp. borealis Joseph P. Tracy 1941-8-24 17038 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  JEPS14224  Perideridia howellii Joseph P. Tracy 1930-10-26 9237 Humboldt Valley of South Yager Creek 762 Comment
  SEINET12119285  Perideridia howellii J. P. Tracy 1950-1 19331 Humboldt along Larrabee Creek, 0.5 mi along Blocksburg Road W from bridge across Larrabee Creek Comment
  UC1103410  Perideridia kelloggii Joseph P. Tracy 1924-5-4 6665 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC184145  Perideridia kelloggii Joseph P. Tracy 1912-10-20 3999 Humboldt Alton Northern Coast Region 30 Comment
  UC1215535  Petasites frigidus var. palmatus D. E. Anderson 1962-12-9 2346 Humboldt e of Humboldt State College campus Comment
  UCR179280  Petasites frigidus var. palmatus R. G. Swinney 1968-3-28 236 Humboldt East of Humboldt State College, Arcata 152 Comment
  SEINET12330003  Phacelia bolanderi F. H. Utech 1986-1 86 -384 Humboldt 0.5 mi NNW on Kings Peak Road (Humboldt County C4A) from junction with Shelter Cove Road 600 Comment
  UCD120520  Phacelia heterophylla subsp. virgata Alice Eastwood; John Thomas Howell 1937-6-23 4757 Humboldt Dinsmore's. Comment
  HSC57214  Phacelia mutabilis Griswold, Butler 1979-7-12 7263 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  HSC74222  Phacelia mutabilis M. A. Baker 1980-7-23 3189 Humboldt Near Orleans Mtn. 1859 Comment
  HSC79546  Phacelia nemoralis Kenneth Clark 1981-5-2 1359 Humboldt 1/4 mi. W of Dead Man's Gulch 6 Comment
  BLMAR428  Phacelia nemoralis subsp. nemoralis Clara Sander 2004-8-4 428 Humboldt Titlow Hill, along Titlow Hilll road 914 Comment
  HSC13670  Phacelia nemoralis subsp. oregonensis D. E. Anderson 1963-3-16 2391 Humboldt Scotia Bluffs Comment
  UC1239735  Phacelia procera Joseph P. Tracy Jul 16 1930-Jul 19 1930 9084 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC526832  Phalaris aquatica Joseph P. Tracy 1927-9-18 8366 Humboldt Carlotta; Northern Coast Ranges, Carlotta 60 Comment
  UCD88767  Phalaris californica Joseph P. Tracy 1938-6-7 15861 Humboldt N side of Mad River, 1/2 mile E of bridge on Arcata - Blue Lake highway. 30 Comment
  HSC35714  Philadelphus californicus Thomas W. Nelson 1975-10-12 2235 Humboldt McKeown Ranch, N of Dinsmore Comment
  CAS-BOT-BC76564  Philadelphus lewisii Doris K. Kildale 1928-6-9 5057 Humboldt Chalk Mountain Comment
  JEPS49603  Philadelphus lewisii Joseph P. Tracy 1926-6-27 7696 Humboldt Horse Mountain Northern Coast Ranges 1066 Comment
  UC183571  Philadelphus lewisii Joseph P. Tracy 1912-7-4 3722 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC1198553  Phlox douglasii subsp. rigida Joseph P. Tracy 1927-6-12 8142 Humboldt Horse Mountain 1432 Comment
  HSC100598  Phlox gracilis Carl C. Marshall Apr 1887 373 Humboldt Hoopa Valley. Comment
  JEPS71116  Phlox gracilis Joseph P. Tracy 1930-6-21 8791 Humboldt Larrabee Valley Northern Coast Ranges 701 Comment
  UC1198561  Phlox gracilis Joseph P. Tracy 1908-6-9 2666 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC99286  Physocarpus capitatus T. Jimerson, J. Pageau 1979-6-22 609 Humboldt Near Bee Mtn., close to the town of Orleans 655 Comment
  CAS-BOT-BC73290  Pinus contorta Ira L. Wiggins 1930-6-25 4620 Humboldt Sand dunes 2 miles north of Samoa. Comment
  HSC95784  Pinus monticola Will Ferrand 2002-4-27 37 Humboldt Off Titlow Hill Rd. 0.75 mi. S of intersection of Titlow Rd. and Hwy. 299 884 Comment
  UC1196914  Pinus muricata unknown 1935-7-1 Humboldt Moonstone Beach settlement Moonstone Beach (0.5 mi or so back from ocean) 60 Comment
  UC4590  Piperia candida Harley P. Chandler Jun 1901 1385 Humboldt Hupa Indian Reservation North Coast Ranges 304 Comment
  HSC98111  Piperia unalascensis Cara Witte 2007-6-26 356 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N36A. 1348 Comment
  UC16264  Pisum sativum Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5607 Humboldt Blue Lakes Comment
  SEINET3152905  Plagiobothrys nothofulvus N. Dennis 1965-6-11 114 Humboldt About 1/4 miles S and 1 mile E of the juction of Berry Ridge Road and the Eureka-Bridgeville county road, along Ashfield Ridge Road. About 5 miles SE of Kneeland. 792 Comment
  UC1562526  Plagiobothrys nothofulvus Barbara Ertter with Thomas J. Delendick 1987-5-16 6929 Humboldt ca 15 air mi e Arcata (just w of Berry Summit on Hwy 299, on n side of road); Vista Point 914 Comment
  UC1239572  Plagiobothrys reticulatus Joseph P. Tracy 1932-5-1 9884 Humboldt Garberville Northern Coast Ranges, Garberville 121 Comment
  UC206144  Plagiobothrys reticulatus Joseph P. Tracy 1909-5-23 2972 Humboldt Eureka 0 Comment
  JEPS60973  Plagiobothrys reticulatus Joseph P. Tracy 1916-5-31 4691 Humboldt Holmes Flat, along Eel River from South Fork to Scotia Northern Coast Ranges, Eel River 60 Comment
  UC1239570  Plagiobothrys reticulatus Joseph P. Tracy 1916-6-19 4727 Humboldt near Forks Dobbyn Creek; Northern Coast Ranges, Forks Dobbyn Creek 182 Comment
  UC1222207  Plagiobothrys scouleri Joseph P. Tracy 1946-5-19 17535 Humboldt near Ashfield; Kneeland Prairie 822 Comment
  UC526812  Plagiobothrys tenellus Joseph P. Tracy 1932-5-1 9863 Humboldt near Garberville; North Coast Ranges, Redway 182 Comment
  UC1180486  Plagiobothrys tenellus Robert Ornduff 1960-6-1 6179 Humboldt meadow on high ridge about 3 mi e Garberville (on road to Alder Point) Comment
  BLMAR605  Plantago Jennifer Wheeler 2011-4-1 605 Humboldt Mattole Beach, Located below Smith gulch 6 Comment
  POM61312  Plantago hirtella var. galeottiana Joseph P. Tracy 1906-6-17 2493 Humboldt Immediate vicinity of Eureka. 0 Comment
  SEINET12330007  Plantago hirtella var. galeottiana F. H. Utech 1986-1 86 -409 Humboldt Cape Mendocino, along Pacific Ocean 6 Comment
  JEPS7136  Plantago lanceolata Lincoln Constance 1934-5-27 700 Humboldt s end Dyerville Bridge (on South Fork Eel River); South Fork Eel River, Bull Creek Region 45 Comment
  HSC16841  Plantago lanceolata D. E. Anderson 1961-8-25 1746 Humboldt 1.5 mi. S of Trinidad Comment
  UC154018  Plantago major J. P. Tracy 1910-10-1 3167 Humboldt immediate vicinity Eureka 0 Comment
  HSC26448  Plantago maritima T. O. Osborne 1970-5-17 4 Humboldt Sugarloaf Rock, Cape Mendocino Comment
  RSA68979  Plantago maritima F. W. Peirson 1923-7-11 3857 Humboldt Flats north of Eureka. Comment
  UC1733682  Plantago subnuda Kay H. Beach, Frank Gould 1940-5-5 483 Humboldt north of Eureka along roadside; with Plantago major and Plantago lanceolata. Comment
  UC275576  Platanthera sparsiflora Joseph P. Tracy 1923-6-24 6369 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  CAS-BOT-BC136647  Platanthera stricta Doris Kildale 1931-5-19 10684 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  CAS-BOT-BC91631  Platystemon californicus Alice Eastwood s.n. Humboldt Samoa. Comment
  SEINET3124150 Image available Platystemon californicus Joseph P. Tracy 1904-5-1 2047 Humboldt Region about Humboldt Bay, sandy field at Bucksport 0 Comment
  SFV18500  Platystemon californicus A. M. Deshais 2002-4-12 36 Humboldt Manila Dunes. Comment
  SEINET780340  Plectritis A. Baker 1980-5-24 1450 Humboldt 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
  UC999835  Plectritis brachystemon S. C. Dyal 1938-6-11 719 Humboldt 14 mi w of Dinsmore (e side of McClellan Mountain); McClellan Mountain Comment
  UC169035  Plectritis congesta Joseph P. Tracy 1908-6-8 2625 Humboldt Northern Coast Ranges, Kneeland Prairie Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC176121  Plectritis congesta Joseph P. Tracy 1912-6-9 3652 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  HSC45385  Pleuricospora fimbriolata R. York 1978-5-20 174 Humboldt Along Bluff Creek trail. 610 Comment
  HSC48728  Pleuricospora fimbriolata J. Pageau, T. Jimerson, W. Wisler, A. Regalis 1979-6-13 524 Humboldt Off FS 10N05. SE slope of Hopkins Butte. Bulk Collection 186 1037 Comment
  SEINET10589989  Poa Rattan 1878-1 RATTAN s.n. Humboldt Common in inherited ... Comment
  JEPS72921  Poa annua Lincoln Constance 1934-6-19 918 Humboldt near summit Grasshopper Peak; Bull Creek Region 914 Comment
  HSC10658  Poa bulbosa D. J. Wilder 1965-5-15 36 Humboldt 2 mi. E of Freshwater on Rd. to Kneeland. Comment
  HSC10662  Poa bulbosa D. E. Anderson 1963-5-18 2446 Humboldt 1.4 mi. W of Berry Summit. Comment
  HSC1828  Poa bulbosa William J. Ferlatte, B. D. Rogers 1966-6-8 2085 Humboldt Forest Glen Campground. Comment
  HSC73055  Poa compressa M. A. Baker 1980-7-23 3139 Humboldt Near Orleans Mtn. 1859 Comment
  CAS-BOT-BC255119  Poa confinis Joseph P. Tracy 1927-4-24 7947 Humboldt Eureka, near bay shore 9 Comment
  HSC10683  Poa confinis E. W. Styskel 1964-5-7 79 Humboldt 2 mi. S of Samoa near Samoa Rd., near beach. Comment
  HSC10702  Poa douglasii D. E. Anderson 1961-9-2 1772 Humboldt 3 mi. S of Cape Mendocino. 3 Comment
  HSC10704  Poa douglasii R. H. Berg 1963-5-8 67 Humboldt On sand dunes near Lanphere's, Arcata. Comment
  UC1145115  Poa douglasii Joseph P. Tracy 1947-7-3 17766 Humboldt mouth of Little River 6 Comment
  RSA10047  Poa howellii Joseph P. Tracy 1929-7-4 8619 Humboldt French Camp Ridge 1067 Comment
  UC39617  Poa kelloggii Harley P. Chandler May, 1901 1183 Humboldt near Eureka; North Coast Ranges, region about Humboldt Bay 30 Comment
  SEINET10660267  Poa kelloggii Harley P. Chandler Chandler 1183 Humboldt North Coast Ranges, California. 30 Comment
  RSA10072  Poa pratensis Joseph P. Tracy 1926-5-9 7469 .5 Humboldt Valley of south Yager Creek Comment
  UCD91919  Poa pratensis P. B. Kennedy 1923-8-3 s.n. Humboldt south of Scotia. By road through red woods off highway. Comment
  POM303612  Poa secunda J. T. Howell 1944-7-14 19780 Humboldt Plaskett Meadows. Comment
Read comments
Jun 12 2012
  RSA152381  Poa trivialis Joseph P. Tracy 1950-6-8 18723 Humboldt Bear River Ridge 610 Comment
  CAS-BOT-BC244299  Podagrostis humilis Joseph P. Tracy 1930-7-16 8989 Humboldt South Fork Mountain, at McKay Camp 1676 Comment
  BLMAR196  Polygala californica Donald Hazlett 1994-6-7 196 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC31205  Polygala californica D. E. Anderson 1972-6-20 5743 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  CAS-BOT-BC167572  Polygala cornuta var. cornuta Henry M. Pollard 1946-8-11 s.n. Humboldt Perch Creek, Orleans region Comment
  RSA21671  Polygala cornuta var. cornuta Carl B. Wolf 1937-8-13 9224 Humboldt North Coast Range, 8 mi E of Hoopa Valley on New Road towards Trinity summit. 1220 Comment
  UC1198074  Polygonum bistortoides Joseph P. Tracy 1919-9-18 5242 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC672972  Polygonum bistortoides Joseph P. Tracy 1927-6-18 8171 Humboldt Bear River Ridge 609 Comment
  UC672974  Polygonum bistortoides Joseph P. Tracy 1930-7-16 8924 Humboldt McKay Camp South Fork Mountain 1676 Comment
  HSC55160  Polygonum douglasii Gilbert Muth 1979-8-1 12122 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC55221  Polygonum douglasii Walter Overton 1979-8-1 12393 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  POM89531  Polygonum douglasii Joseph P. Tracy 1919-9-18 s.n. Humboldt Trinity Summit Comment
  UC144100  Polygonum douglasii subsp. spergulariiforme Joseph P. Tracy 1909-7-31 3038 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1735921  Polygonum douglasii subsp. spergulariiforme Dean W. Taylor 1991-8-15 12301 Humboldt ridge 1 mile West of Horse Mountain, 1493 Comment
  UC672947  Polygonum minimum Joseph P. Tracy 1932-7-18 10702 Humboldt Brett Hole Trinity Summit (head) 1828 Comment
  CAS-BOT-BC109181  Polygonum paronychia Alice Eastwood 1923-8-14 12314 Humboldt Samoa. Comment
  HSC103974  Polygonum paronychia C. Reynolds 2015-3-16 19 Humboldt Along Freshwater Beach, due south of the Kuchel Visitor Center 1 Comment
  HSC17516  Polygonum paronychia H. E. Parks Feb 1934 4834 Humboldt Stone Lagoon Comment
  SEINET2153798  Polygonum paronychia K. T. Harper 2002-1 2002 -2 Humboldt Trinidad Beach. Comment
  UC1136167  Polygonum persicaria H. L. Person 1932-7-18 Humboldt Freshwater Eureka Quadrangle Comment
  UC672979  Polygonum phytolaccifolium Joseph P. Tracy 1933-7-26 12921 Humboldt Grouse Mountain; around old cabin 1524 Comment
  HSC55057  Polygonum polygaloides subsp. kelloggii G. L. Clifton, Griswold 1979-7-31 11690 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC176682  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1912-7-31 3924 Humboldt Buck Mountain Northern Coast Ranges (near summit) 1676 Comment
  HSC75955  Polygonum spergulariiforme Overton, Butler 1979-7-24 9730 Humboldt Near Black Rock, close to the town of Willow Creek. 1554 Comment
  HSC95652  Polypodium calirhiza Andrea Pickart 2002-4-5 39 Humboldt Lanphere Dunes 15 Comment
  HSC45868  Polypodium glycyrrhiza J. P. Smith 1971-10-6 4984 Humboldt End of Murray Rd. in McKinleyville. Comment
  HSC1140  Polypodium scouleri J. W. Johnson 1962-3-9 1180 Humboldt On a bank above the Hunt Lane between the gate and barn Comment
  JEPS82390  Polypogon interruptus A. S. Hitchcock 1915-7-13 839 Humboldt Eureka Comment
  UCD91028  Polypogon interruptus Joseph P. Tracy 1936-6-8 14871 Humboldt Trinidad. 9 Comment
  CAS-BOT-BC233215  Polypogon maritimus Joseph P. Tracy 1930-10-19 9236 Humboldt Eel River, Alton to Fortuna 15 Comment
  HSC10832  Polypogon maritimus D. E. Anderson 1965-9-5 4077 Humboldt Along Mad River, 3 mi. S of Blue Lake Comment
  HSC38498  Polypogon monspeliensis R. Sutherland 1976-11-9 1 Humboldt Redwood Creek, Wittemore Grove. 82 Comment
  UC1145084  Polypogon monspeliensis Joseph P. Tracy 1936-6-8 14872 Humboldt mouth of Luffenholz Creek Trinidad (Trinidad); Coast bluffs at mouth of Luffenholz Creek 9 Comment
  UCD91220  Polypogon monspeliensis Linda M. Barker 1976-6-22 1625 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  RSA152378  Polypogon viridis Joseph P. Tracy 1943-8-29 17445 Humboldt [Unspecified] Comment
  CAS-BOT-BC76664  Polystichum munitum Doris K. Kildale 1926-7-22 2414 Humboldt Metropolitan, woods near Canyon Park. Comment
  UC906671  Polystichum munitum Joseph P. Tracy 1947-5-24 17688 Humboldt Big Lagoon 12 Comment
  HSC79146  Polystichum munitum C. J. Thomas 1984-9-25 117 Humboldt In Redwood forest immediately behind HSU fieldhouse 79 Comment
  JEPS64534  Populus Joseph P. Tracy 1939-4-18 16211 Humboldt on South Fork of Eel River between Miranda and Redway (at Sylvandale); North Coast Ranges, South Fork of Eel River 91 Comment
  HSC13800  Populus trichocarpa Steve Dorei 1970-10-13 41 Humboldt HSU campus, S side of Forestry Bldg. Comment
  JEPS64560  Populus trichocarpa W. L. Jepson 1902-8-4 2147 Humboldt Petrolia on the Mattole River, Petrolia (on the Mattole River, Expedition from Ukiah to the Hupa Indian Reservation) Comment
  UC492231  Populus trichocarpa Joseph P. Tracy 1932-4-24 9800 Humboldt South Fork of Eel River between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  HSC69532  Potamogeton natans R. Kalal 1979-5-18 76 Humboldt Shallow slough E of Clam Beach County Park 24 Comment
  UCR70886  Potamogeton pusillus S. K. Harris 1938-9-12 s.n. Humboldt Eel River, near Fernbridge 5 Comment
  HSC90766  Potentilla anserina subsp. pacifica Gail Newton 1982-5-5 2519 Humboldt Elk River Wildlife Area, Eureka Comment
  UC154225  Potentilla anserina subsp. pacifica Joseph P. Tracy 1907-7-20 2590 Humboldt near Samoa (region about Humboldt Bay); Northern Coast Region, Region about Humboldt Bay 0 Comment
  UCD113696  Potentilla anserina subsp. pacifica Gordon Leppig 1998-6-25 855 Humboldt McKinleyville, Mad River Estuary at end of Murray Rd. 0 Comment
  HSC18731  Potentilla anserina subsp. pacifica W. A. Heaton 1965-5-17 3 Humboldt 1/2 mi. N of Trinidad on trail near beach Comment
  RSA232639  Potentilla anserina var. grandis Larry E. DeBuhr, Gary D. Wallace 1972-5-22 609 Humboldt On the beach at Prairie Creek. Redwoods Sate Park Comment
  RSA647543  Potentilla drummondii Marion P. Harthill 1972-7-19 1319 Humboldt Fish Lake 1067 Comment
  HSC59611  Potentilla gracilis var. fastigiata J. P. Smith, Steve Selva 1970-6-30 4102 Humboldt Comment
  HSC99485  Potentilla gracilis var. gracilis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 144 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
  HSC97913  Prosartes hookeri Cara Witte 2007-6-13 268 Humboldt Along Forest Service Rd. 5N04. Approximately 1 mile east of intersection to Grouse Mountain Lookout. 1534 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-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
  HSC15475  Prosartes smithii Francis Winter 1960-4-23 Humboldt Simpson Creek, Korbel-Maple Creek rd. 244 Comment
  UC1541658  Prunella vulgaris Harold E. Parks May 1933 4309 Humboldt Spruce Cove Trinidad; Spruce Cove Comment
  HSC59239  Prunella vulgaris Clark L. Miller 1978-5-13 1130 Humboldt Comment
  UC577375  Prunella vulgaris var. lanceolata Joseph P. Tracy 1932-7-13 10524 Humboldt Corral Prairie Trinity Summit; , Corral Prairie 1584 Comment
  RSA245006  Prunella vulgaris var. lanceolata William J. Ferlatte 1966-6-15 2093 Humboldt Near Bridgeville Comment
  JEPS44945  Prunus emarginata Joseph P. Tracy 1924-5-25 6685 Humboldt on Big Lagoon Prairie, Big Lagoon Big Lagoon Prairie; Northern Coast Region, Big Lagoon, Big Lagoon Prairie 6 Comment
  UC154253  Prunus emarginata Joseph P. Tracy 1906-4-15 2402 Humboldt near Blue Lake (on Mad River); Northern Coast Ranges, Mad River 30 Comment
  UC205471  Prunus emarginata Joseph P. Tracy 1920-11-7 5410 Humboldt Mad River at Lindsey Creek Lindsey Creek; Northern Coast Region, Mad River, Lindsey Creek 30 Comment
  UC1198776  Prunus subcordata Joseph P. Tracy 1932-6-14 19142 Humboldt Trinity River Valley near the South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  JEPS34048  Pseudognaphalium californicum Lincoln Constance 1934-6-14 875 Humboldt near Lookout Pt. (w side of Look Prairie); South Fork Eel River, Bull Creek Region, Look Prairie Comment
  HSC35014  Pseudognaphalium stramineum Thomas W. Nelson, James Nelson 1974-9-15 1714 Humboldt W of Fairhaven, Samoa Peninsula Comment
  HSC40526  Pseudognaphalium thermale Thomas W. Nelson, James Nelson 1976-7-28 3060 Humboldt SW-facing outcrop along S.R. 36 ca. 4 mi. W of Dinsmore Comment
  UCD20403  Pseudognaphalium thermale Donald C. Hagar 1957-8-15 199 Humboldt 4.5 miles NE of Salyer, Cedar Creek Divide, 3500 ft. elev. 1066 Comment
  HSC54603  Pseudotsuga menziesii var. menziesii Overton, Butler 1979-7-24 9686 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  OBI36577  Pseudotsuga menziesii var. menziesii David J. Keil 1983-7-1 17264 Humboldt Ca. 8 mi W of jctn US101 along Bull Crk Flats rd Comment
  UC1222914  Psilocarphus tenellus Joseph P. Tracy 1942-6-15 17118 Humboldt near Redcrest resort; Englewood 91 Comment
  HSC38933  Pteridium aquilinum var. pubescens Linda M. Barker 1976-5-13 1480 Humboldt 3 mi. W of Arcata. Comment
  UCD92898  Puccinellia nutkaensis Joseph P. Tracy 1950-6-17 18834 Humboldt at Eureka. 3 Comment
  CAS-BOT-BC462870  Pyrola asarifolia Doris K. Kildale 1927-7-10 3730 Humboldt Gans Prairie, Bald Hills Comment
  UC1222157  Pyrola asarifolia Joseph P. Tracy 1951-6-24 19534 Humboldt near intersection of Butter Valley Road with Kneeland Road Comment
  HSC54232  Pyrola picta Griswold, Butler 1979-7-12 7313 Humboldt Near Lone Pine Ridge, close to the town of Willow Creek. 1478 Comment
  UC562453  Pyrola picta Joseph P. Tracy 1935-7-30 14356 Humboldt Salmon Summit 1767 Comment
  UC8128  Quercus X morehus Harley P. Chandler June, 1901 1454 Humboldt Klamath River North Coast Ranges 304 Comment
  BLMAR160  Quercus chrysolepis Donald Hazlett 1994-6-7 160 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC41267  Quercus chrysolepis Brad Klipfel 1974-7-23 461 Humboldt Horse Mtn. Comment
  UCD46155  Quercus garryana var. garryana W. L. Colwell 1957-9-4 53 Humboldt Near Board Camp Mountain, 18 miles southeast of Korbal, near Six Rivers National Forest, Humboldt County. 1371 Comment
  CAS-BOT-BC105162  Quercus kelloggii Doris K. Kildale 1927-4-16 3023 Humboldt Between Island Mountain and Fort Seward Comment
  OBI36337  Quercus kelloggii David J. Keil 1983-7-1 17274 Humboldt Ca. 13 mi W of jctn US 101 along Bull Creek Flats rd Comment
  UC1196357  Quercus kelloggii Joseph P. Tracy 1940-10-15 16780 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC104332  Quercus sadleriana Clarence R. Quick 1959-6-24 59 -41 Humboldt Bee Mt. ca. 12 miles SW of Orleans Comment
  UCD47241  Quercus sadleriana Milo S. Baker 1947-8-10 11896 Humboldt 16 mi N.E. of Hooba along trail towards Trinity Summit from end of forest Rd. 1463 Comment
  HSC102574  Quercus vacciniifolia M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1561 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC41330  Quercus vacciniifolia Brad Klipfel 1974-9-17 573 Humboldt Horse Mtn. 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
  UC1196529  Quercus vacciniifolia Joseph P. Tracy 1949-8-26 18526 1/2 Humboldt 2 mi e Grove's Prairie; North Coast Ranges, Trinity Summit 1524 Comment
  UCD47406  Quercus vacciniifolia H. L. Mason 1932-7-21 7018 Humboldt East slope of Southfork Mts. On road Arcata to Weaverville, Humboldt County. Comment
Read comments
Oct 6 2006
  CAS-BOT-BC410975  Ranunculus acris Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  UC1103013  Ranunculus alismifolius var. alismellus Joseph P. Tracy 1932-7-15 10588 Humboldt ridges e Corral Prairie; Klamath Mountains, Trinity Summit 1828 Comment
  CAS-BOT-BC379173  Ranunculus aquatilis var. aquatilis Joseph P. Tracy 1937-5-30 15311 Humboldt Larrabee Creek; in shallow pond near Bosworth's 366 Comment
  CAS-BOT-BC379197  Ranunculus aquatilis var. aquatilis C. C. Harris; S. K. Harris 1936-6-12 3363 Humboldt open woods, prairies and ledges on Chalk Mountain near Bridgeville Comment
  UC162339  Ranunculus aquatilis var. capillaceus Joseph P. Tracy 1911-7-7 3395 Humboldt three mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges 914 Comment
  HSC26276  Ranunculus aquatilis var. diffusus Thomas W. Nelson 1971-5-29 453 Humboldt E side of the Big Bend Rd. near Maple Creek Comment
  HSC79359  Ranunculus californicus Kenneth Clark 1980-3-22 521 Humboldt Ridge above Dead Man's Gulch 152 Comment
  SEINET13716687  Ranunculus californicus Unknown 1916-4-30 4681 Humboldt Around Humboldt Bay Comment
  UC162875  Ranunculus californicus Joseph P. Tracy 1901-4-26 1044 Humboldt e Fields Landing; Northern Coast Region, Region about Humboldt Bay, Humboldt H 0 Comment
  HSC18144  Ranunculus californicus var. californicus T. M. Mingo May 1965 Humboldt W of Fairhaven Dr. intersection with Hwy. 101 Comment
  UC552300  Ranunculus flammula Joseph P. Tracy 1934-7-13 13390 Humboldt Dow's Prairie 60 Comment
  UC9434  Ranunculus flammula Harley P. Chandler May, 1901 1130 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  POM269620  Ranunculus flammula var. ovalis Joseph P. Tracy 1937-5-30 15312 Humboldt In Shallow pond near Bosworth's, alt 1200ft. Larrabee Creek. Comment
  POM269622  Ranunculus flammula var. ovalis Joseph P. Tracy 1934-7-13 13390 Humboldt Dow's Prairie Comment
  HSC28201  Ranunculus hebecarpus Thomas W. Nelson 1971-5-7 429 Humboldt Beside Hwy. 101 1.0 mi. S of Arcata Comment
  HSC39443  Ranunculus muricatus Linda M. Barker 1976-4-30 1404 Humboldt 3 mi. W of Arcata Comment
  UC1196231  Ranunculus occidentalis Joseph P. Tracy 1934-4-8 13173 Humboldt between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  HSC7236  Ranunculus occidentalis var. occidentalis Jack Rockwell 1962-4-29 39 Humboldt Along Hwy. 299 549 Comment
  SD53241  Ranunculus repens Darley F. Howe 1962-5-22 3306 Humboldt Orick 29 Comment
  UCR17461  Ranunculus repens R. S. Woglum 1938-8-29 2036 Humboldt North Coast, grounds of Trinidad State Park, south of Trinidad 38 Comment
  HSC18177  Ranunculus repens var. repens L. H. Myers 1963-4-19 44 Humboldt Dunes W of Lanpheres Rd., Mad River slough area Comment
  POM145526  Ranunculus sardous J. B. Feudge 1923-7-22 140 Humboldt At Fortuna. 15 Comment
  HSC18191  Ranunculus uncinatus Jack Rockwell 1962-4-29 33 Humboldt N Bank of Van Duzen River, E of Hwy. 101 Comment
  HSC99407  Ranunculus uncinatus var. uncinatus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 56 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  HSC89466  Raphanus sativus P. A. Daly 1986-3-12 104 Humboldt Trinidad Head 61 Comment
  JEPS41990  Rhamnus californica W. L. Jepson 1932-8-8 16480 Humboldt Canoe Creek Grasshopper Peak 1066 Comment
Read comments
Jan 17 2008
  UC592943  Rhamnus californica subsp. californica Carl B. Wolf 1931-8-31 Humboldt near Mouth of South Fork of Trinity River (on road to Sandy Bar Swimming Hole) 243 Comment
  RSA40887  Rhamnus californica subsp. occidentalis Carl B. Wolf 1944-10-28 11476 Humboldt Sacramento River Canyon, 0.4 ile below mouth of Mears Creek. 457 Comment
  RSA257015  Rhododendron macrophyllum Gary D. Wallace 1971-7-29 950 Humboldt Prairie Creek Redwoods St. Pk. along Zig Zag Trail #3 of Hwy. 101. Comment
  UCSB24457  Rhododendron occidentale McMinn, Howard 1934-6-22 Humboldt Sea Cliff north of Eureka Comment
  CAS-BOT-BC200379  Rhododendron occidentale var. paludosum Henry M. Pollard 1948-8-9 s.n. Humboldt Camp Creek, near Orleans Comment
  CAS-BOT-BC200384  Rhododendron occidentale var. paludosum W. R. Dudley 1899-1-1 s.n. Humboldt Arcata Comment
  HSC44449  Rhododendron occidentale var. paludosum Brad Klipfel 1975-5-30 655 Humboldt N of Horse Mtn. Comment
  HSC56093  Ribes binominatum G. L. Clifton, Griswold 1979-7-31 11794 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  JEPS79963  Ribes binominatum Joseph P. Tracy 1932-7-13 10487 Humboldt near Corral Prairie (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1524 Comment
  CAS-BOT-BC169149  Ribes inerme var. klamathense Thomas W. Nelson; Jane P. Nelson 1977-5-30 3420 Humboldt Growing beside State Route 36 just west of Dinsmore at highway bridge over Van Duzen River - North Coast Ranges 731 Comment
  JEPS49418  Ribes inerme var. klamathense Harley P. Chandler June, 1901 1320 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  UCD102260  Ribes inerme var. klamathense Joseph P. Tracy 1941-3-26 16813 Humboldt Lack Pond; in Trinity River Valley, opposite mouth of Willow Creek. 152 Comment
  UC1198916  Ribes lacustre Joseph P. Tracy 1942-6-23 17250 Humboldt near Box Camp; Trinity Summit 1524 Comment
  HSC101752  Ribes laxiflorum J. P. Smith, J. O. Sawyer 2012-2-27 13437 Humboldt Patrick's Point State Park 41 Comment
  POM237433  Ribes laxiflorum S. T. Parks 1937-6-4 24004 Humboldt Along Prairie Creek at Valley Green Comment
  HSC41309  Ribes lobbii Brad Klipfel 1974-6-25 410 Humboldt Horse Mtn. Comment
  HSC98554  Ribes lobbii Cara Witte 2008-6-18 742 Humboldt 2 miles north of the intersection between National Forest 1 and Friday Ridge Road/ 6N08 1580 Comment
  CAS-BOT-BC212479  Ribes marshallii Joseph P. Tracy 1932-7-15 10592 Humboldt Ridges east of Corral Prairie, Trinity Summit, Klamath Mountains 1828 Comment
  HSC103200  Ribes marshallii Jade Paget-Seekins 2010-7-5 34 Humboldt On the trail to Mill Creek Lake, up Big Hill Road, outside of Hoopa. 1655 Comment
  UC519248  Ribes marshallii Joseph P. Tracy 1932-7-15 10592 Humboldt ridges e of Corral Prairie (Klamath Mountains, Trinity Summit); Klamath Mountains, Trinity Summit 1828 Comment
  HSC20321  Ribes menziesii D. E. Anderson 1962-2-23 1924 Humboldt Grove E of HSC campus Comment
  UC1198935  Ribes menziesii Joseph P. Tracy 1913-3-9 4021 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC1222373  Ribes roezlii Joseph P. Tracy 1950-7-31 19235 Humboldt near Muddy Lake; Grouse Mountain 1524 Comment
  RSA0024753  Ribes roezlii D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5594 Humboldt Mount Lassic and 2 smaller peaks to immediate east. 1768 Comment
  RSA167292  Ribes roezlii var. amictum Joseph P. Tracy 1950-6-18 18850 Humboldt Wilder Ridge Comment
  BLMAR596  Ribes roezlii var. cruentum Jennifer Wheeler 2010-9-14 596 Humboldt Lacks Creek, along Pine Ridge Road 975 Comment
  CAS-BOT-BC198897  Ribes roezlii var. cruentum Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans. Comment
  UC902091  Ribes sanguineum Joseph P. Tracy 1948-9-5 18178 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  CAS-BOT-BC144677  Ribes sanguineum var. glutinosum Ira L. Wiggins 1930-6-25 4617 Humboldt Sand dunes 2 miles north of Samoa Comment
  CAS-BOT-BC144688  Ribes sanguineum var. glutinosum Joseph Andorfer Ewan 1937-7-1 10444 Humboldt on river bench. Stephan Grove on Eel River, n. of Garberville Comment
  CAS-BOT-BC144693  Ribes sanguineum var. glutinosum Doris K. Kildale 1927-5-1 3116 Humboldt Blocksburg 518 Comment
  CAS-BOT-BC144697  Ribes sanguineum var. glutinosum Doris K. Kildale 1928-7-29 5926 Humboldt Bear River at Capetown 15 Comment
  HSC20344  Ribes sanguineum var. glutinosum Francis Winter 1960-2-28 Humboldt Samoa Peninsula 6 mi. W of Arcata, Ca Comment
  HSC34637  Ribes sanguineum var. glutinosum Robert M. Specht 1975-4-9 121 Humboldt 2.5 mi. N of Trinidad on Patricks Point Dr., W side 61 Comment
  HSC40407  Ribes sanguineum var. glutinosum Linda M. Barker 1976-1-24 1311 Humboldt 3 mi. W of Arcata Comment
  HSC65697  Ribes sanguineum var. sanguineum J. P. Smith, J. O. Sawyer 1974-6-2 7653 Humboldt 1372 Comment
  HSC102609  Ribes viscosissimum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-28 1596 Humboldt Slopes above Bret Hole and below trail 6E18, 1.5 km SSW of Trinity Summit. 1778 Comment
  UC1103817  Romanzoffia tracyi Joseph P. Tracy 1940-5-18 16563 Humboldt 2 mi. n. Trinidad (coast bluff opposite Park's place) 3 Comment
  JEPS53820  Rorippa palustris H. E. Parks and Joseph P. Tracy 1931-5-17 9425 Humboldt Trinity River near Willow Creek; Northern Coast Ranges, Trinity River nr Willow Creek 152 Comment
  UC667029  Rosa Joseph P. Tracy 1936-8-24 15179 Humboldt 6 mi se Arcata; Fickle Hill 609 Comment
  UC902154  Rosa Joseph P. Tracy 1949-8-7 18438 Humboldt near Box Camp; Trinity Summit 1524 Comment
  HSC19619  Rosa canina D. E. Anderson 1965-5-15 3700 Humboldt 5 mi. N of Hoopa on Bald Hills Rd. 198 Comment
  CAS-BOT-BC146485  Rosa gymnocarpa Carl D. Duncan 1920-9-1 s.n. Humboldt Hoopa Comment
  HSC39397  Rosa gymnocarpa D. E. Anderson, J. P. Smith 1971-6-28 1251 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  POM275419  Rosa gymnocarpa Lyman D. Benson 1928-7-12 489 Humboldt Weott Ranger Station. Mt.Range: Seaward N Coast; Watershed: South Fork Eel River. 61 Comment
  UC902159  Rosa gymnocarpa Joseph P. Tracy 1949-8-7 18437 Humboldt near Box Camp; Trinity Summit 1524 Comment
  CAS-BOT-BC146824  Rosa nutkana Harley P. Chandler 1901-5-1 1198 Humboldt Humboldt Bay 30 Comment
  CAS-BOT-BC146831  Rosa nutkana M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  HSC19632  Rosa nutkana W. A. Heaton 1965-5-17 12 Humboldt 1/2 mi. N of Trinidad St. Park Comment
  HSC19634  Rosa nutkana C. G. Young 1967-7-29 8 Humboldt Eureka City Golf Course, SE side Comment
  UC303025  Rosa nutkana var. nutkana Joseph P. Tracy 1923-10-6 6564 Humboldt Eureka; Northern Coast Ranges 0 Comment
  CAS-BOT-BC146500  Rosa pisocarpa subsp. pisocarpa Joseph P. Tracy 1947-7-5 17814 Humboldt Trinity Summit, near Box Camp 1524 Comment
  UC492165  Rubus lasiococcus Joseph P. Tracy Jul 16 1930-Jul 19 1930 9021 Humboldt near McKay Camp (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  HSC19651  Rubus leucodermis Lincoln Constance 1934-5-24 655 Humboldt S Fork Eel River, bordering lower Look Prairie on E. side 122 Comment
  JEPS44748  Rubus leucodermis W. L. Jepson 1902-7-25 2122 Humboldt Supply Creek , Supply Creek (Hupa Valley) 243 Comment
  UC162332  Rubus leucodermis Joseph P. Tracy 1911-6-4 3235 Humboldt 5 mi from coast (along Little River); Northern Coast Region, along Little River 121 Comment
  UC902131  Rubus leucodermis Joseph P. Tracy 1947-8-24 17911 Humboldt near Box Camp; Trinity Summit 1524 Comment
  CAS-BOT-BC147247  Rubus parviflorus Harold E. Parks; Joseph P. Tracy 1942-5-16 11562 Humboldt Vicinity of Garberville 152 Comment
  HSC79508  Rubus parviflorus Kenneth Clark 1980-4-18 589 Humboldt Shelter Cove. On lower alluvial terrace of Dead Man's Gulch 24 Comment
  NY1043364  Rubus parviflorus D. K. Gillespie 1938-8-6 15397 Humboldt Eureka Comment
  UC154202  Rubus parviflorus Joseph P. Tracy 1908-6 2732 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UCD170575  Rubus parviflorus var. velutinus Gordon Leppig 1998-5-7 751 Humboldt Quarry Rd., off Jacoby Creek. 97 Comment
  CAS-BOT-BC156720  Rubus spectabilis W. R. Dudley 1899-6-21 s.n. Humboldt Engelwood Brook - Eel River Comment
  CHSC59811  Rubus spectabilis Jordan Detzer 1977-4-8 6 Humboldt South end of Patrick's Point State Park, ca 0.2 mi west of Hwy 101 and 5 mi north of Trinidad. 60 Comment
  CHSC68502  Rubus spectabilis Vernon H. Oswald 1997-4-10 8315 Humboldt Clam Beach between Arcata and Trinidad. Bordering a creek on the back beach. 30 Comment
  RSA74607  Rubus spectabilis E. K. Balls, Lee W. Lenz 1956-6-12 1667 Humboldt Between Willow Creek and Blue Lake. Comment
  HSC56441  Rubus ursinus Griswold, Butler 1979-7-12 7182 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC101448  Rubus ursinus subsp. macropetalus Cara M. Witte 2008-6-27 761 Humboldt Approximately 1.5 miles south of intersection of National Forest 1 and 5N04 1546 Comment
  POM271075B  Rubus vitifolius Lyman D. Benson 1929-7-15 1815 Humboldt Clam Beach. Trinidad. Comment
  HSC75259  Rudbeckia occidentalis J. O. Sawyer, M. A. Ericksen 1980-8-18 4053 Humboldt Slopes below Mill Creek Lakes, N Trinity Mtn. Research Natural Area 1707 Comment
  SEINET5710899  Rudbeckia occidentalis Lowell E. Urbatsch 1990-1 6799 Humboldt From Calif. 99 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork; take the left fork (not leading to Denny but to Waterman Ridge and Zeigler Point) and travel 6.7 miles down this road to another fork. Take the rt. fork (away from the rd. leading to Waterman Ridge and Willow Creek). On this rd. (FD 7 NO4) travel 1.5 miles to another fork; continue on 7No4N (the left fork) for 7.4 miles. At this point, take 7NO4N, the rd to Groves Prairie. The collection site is about 50m to the right near the Groves Prairie Creek sign. The site is 17.9 miles from Hawkins Bar just beyond mile marker 9.; Groves Prairie Comment
  HSC102053  Rumex acetosella M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 958 Humboldt Forest edge surrounding Patterson Meadows 1566 Comment
  HSC55036  Rumex acetosella Gilbert Muth 1979-7-31 11488 Humboldt Near Tish Tang A Tang Creek, S Fork, close to the town of Gasquet 1417 Comment
  HSC99572  Rumex californicus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-8-10 237 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
  UC1101197  Rumex conglomeratus Malcolm A. Nobs, S. Galen Smith 1949-8-9 1236 Humboldt pond on s side of the town of Blue Lake town of Blue Lake Comment
  HSC90648  Rumex crispus Gail Newton 1982-6-10 3611 Humboldt Elk River Wildlife Area, Eureka Comment
  UC249558  Ruppia maritima W. L. Jepson and J. P. Tracy 1921-8-7 5862 Humboldt Stone Lagoon; Northern Coast Region 3 Comment
  CAS-BOT-BC445641  Sagittaria cuneata Henry M. Pollard 1945-8-28 s.n. Humboldt Near Orleans. Pond near Harley place Comment
  CAS-BOT-BC129889  Salix bonplandiana Mrs. H. P. Bracelin 1931-5-1 271 Humboldt Sylvandale, between Miranda and Meyers, South Fork of Eel River Comment
  CAS-BOT-BC129894  Salix bonplandiana Joseph P. Tracy; Harold E. Parks 1942-5-16 11568 Humboldt Vicinity of Garberville 152 Comment
  UC463039  Salix boothii Leland S. Smith 1931-9-16 2633 Humboldt Babbitt Spring; Jones Valley Range, Tahoe Nat'l Forest 2133 Comment
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Jul 10 2015
  CAS-BOT-BC132669  Salix coulteri Joseph P. Tracy 1932-7-31 10286 Humboldt Eel River, Alton to Fortuna 15 Comment
  UC1196671  Salix eastwoodiae Joseph P. Tracy 1935-7-26 14268 Humboldt meadows at Water Dog Lakes; Trinity Summit 1828 Comment
  HSC99699  Salix exigua Glenn W. K. Shelton 2010-7-10 11 Humboldt Van Duzen River along State Rte. 36, 2 mi. W of Grizzly Creek Redwoods State Park, across from mile marker 15.00 91 Comment
  POM220112  Salix exigua H. E. Parks, Joseph P. Tracy 1931-5-17 971 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  SBBG58914  Salix exigua var. hindsiana H. E. Parks, J. P. Tracy 1931-5-17 971 Humboldt mouth of Willow Crk at Trinity River Comment
  CAS-BOT-BC106850  Salix hookeriana Harold E. Parks 1931-5-12 0954 Humboldt Samoa, Humboldt Bay Comment
  CAS-BOT-BC107729  Salix hookeriana Harold E. Parks 1931-3-24 912 Humboldt Eel River, Fortuna 10 Comment
  CAS-BOT-BC107736  Salix hookeriana Harold E. Parks 1931-5-28 1000 Humboldt Little River Lagoon Comment
  CAS-BOT-BC107757  Salix hookeriana Joseph P. Tracy 1931-4-4 9330 Humboldt Sand dunes, near Samoa, on Humboldt Bay 6 Comment
  HSC19955  Salix hookeriana H. E. Parks 1931-3-24 914 Humboldt Fortuna, Eel River 10 Comment
  HSC20071  Salix hookeriana J. P. Tracy, H. E. Parks 1931-3-26 904 Humboldt Lower Van Duzen River near Alton Comment
  HSC38179  Salix hookeriana Thomas W. Nelson 1976-11-5 3296 Humboldt Along Wabash Ave. between F & G St., Eureka Comment
  HSC38196  Salix hookeriana Peter Sorensen 1976-6-2 Humboldt Woodley Island Comment
  POM219558  Salix hookeriana H. E. Parks 1931-3-24 912 Humboldt Fortuna. Eel River. 10 Comment
  RSA342501  Salix hookeriana Robert F. Thorne, Percy C. Everett 1965-8-7 35230 -c Humboldt Big Lagoon. 3 Comment
  UC1196549  Salix hookeriana Joseph P. Tracy 1943-11-28 17453 Humboldt Alton to Fortuna (Eel R.); Eel R. 15 Comment
  UC481262  Salix hookeriana Harold E. Parks 1931-5-28 999 Humboldt Little River Lagoon Comment
  UC481264  Salix hookeriana Harold E. Parks 1931-5-28 999 Humboldt Little River Lagoon Comment
  UC481269  Salix hookeriana Harold E. Parks 1931-5-28 1000 Humboldt Little River Lagoon Comment
  UC481270  Salix hookeriana Harold E. Parks 1931-5-28 1000 Humboldt Little River Lagoon Comment
  UC490461  Salix hookeriana Joseph P. Tracy 1932-5-10 9957 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC492329  Salix hookeriana Harold E. and Susan T. Parks 1932-4-3 1100 Humboldt Little R. Lagoon Trinidad; , Little River Lagoon Comment
  UC495607  Salix hookeriana Joseph P. Tracy 1932-10-12 10873 Humboldt S. Fork Eel R. Miranda; Northern Coast Ranges, S. Fork Eel R. 121 Comment
  JEPS14756  Salix laevigata Joseph P. Tracy 1932-5-22 10122 Humboldt between Miranda and Redway (S. Fork Eel River); North Coast Ranges 91 Comment
  UC481831  Salix laevigata Mrs. H. P. Bracelin 1931-5-2 284 a Humboldt 6 km. s Alton (e of Redwood Hwy.) 20 Comment
  UC490516  Salix laevigata Joseph P. Tracy 1932-7-31 10290 Humboldt along Eel River at mouth of Larrabee Creek; North Coast Ranges, Eel River 30 Comment
  UC1196580  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1933-5-7 12153 Humboldt Alton to Fortuna (Eel R.); Northern Coast Region, Eel R. 15 Comment
  UC1196582  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1942-9-6 17309 Humboldt near McKay Camp; S. Fork Mt. 1676 Comment
  UC481283  Salix lasiandra subsp. lasiandra Harold E. Parks 1931-5-14 959 Humboldt Van Duzen R. between Alton and Carlotta; Van Duzen R. 15 Comment
  UCD111578  Salix lasiandra var. lasiandra Joseph P. Tracy 1947-8-24 17896 Humboldt Trinity Summit, meadow at Box Camp. 1463 Comment
  CAS-BOT-BC107610  Salix lasiolepis Joseph P. Tracy; Harold E. Parks; Carleton R. Ball 1932-5-13 1253 Humboldt On gravelly floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  JEPS12946  Salix lasiolepis Joseph P. Tracy 1931-10-3 9707 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  JEPS14764  Salix lasiolepis Joseph P. Tracy 1932-8-27 10753 Humboldt on Van Duzen River Blue Slide; Northern Coast Ranges 91 Comment
  LA208776  Salix lasiolepis Harold E. Parks; Joseph P. Tracy 1933-3-19 11006 Humboldt Van Duzen River, 2 mi. W of Bridgeville 228 Comment
  UC1196620  Salix lasiolepis Joseph P. Tracy 1926-9-19 7803 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  UC275522  Salix lasiolepis Joseph P. Tracy 1924-2-24 6604 Humboldt on S. Fork Eel R. McKee's Mill; Northern Coast Ranges, S. Fork Eel R., McKee's Mill 60 Comment
  UC275524  Salix lasiolepis Joseph P. Tracy 1923-4-15 6189 Humboldt Redwood Creek, at Berry's 274 Comment
  UC469427  Salix lasiolepis Joseph P. Tracy 1931-9-7 9628 Humboldt at Willow Creek Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC471107  Salix lasiolepis Joseph P. Tracy 1931-9-26 9695 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC504026  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
  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
  CAS-BOT-BC107295  Salix lasiolepis var. bigelovii Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-12 01247 Humboldt floodplain of Van Duzen River at Blue Slide 91 Comment
  UC279091  Salix lemmonii J. P. Tracy Humboldt Comment
  CAS-BOT-BC125618  Salix melanopsis A. A. Heller 1923-7-10 13796 Humboldt Along the Eel River between Scotia and Pepperwood Comment
  CAS-BOT-BC125627  Salix melanopsis Harold E. Parks; Joseph P. Tracy 1931-5-17 0972 Humboldt Mouth of Willow Creek at Trinity River 150 Comment
  HSC20027  Salix melanopsis H. E. Parks 1931-10-15 1077 Humboldt Bishop Pine Lodge, Trinidad 75 Comment
  UC1196563  Salix melanopsis Joseph P. Tracy 1931-10-3 9705 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC469446  Salix melanopsis Joseph P. Tracy 1931-5-3 9343 Humboldt Mad R. near Blue Lake; Northern Coast Region, Mad R. 15 Comment
  UC519373  Salix melanopsis Joseph P. Tracy 1933-5-20 12262 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC519380  Salix melanopsis Joseph P. Tracy 1933-5-20 12261 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  CAS-BOT-BC129204  Salix piperi Carleton R. Ball; Harold E. Parks; Joseph P. Tracy 1932-5-13 1251 Humboldt Floodplain of Mad River at Engelhart gravel pit, 2 miles east of Redwood Highway and above Blue Lake Road Comment
  CAS-BOT-BC129126  Salix scouleriana W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  CAS-BOT-BC129139  Salix scouleriana Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  CAS-BOT-BC129172  Salix scouleriana H. E. Parks 1932-11-25 1351 Humboldt Spruce Cove (Parks Ranch), Trinidad Comment
  HSC20084  Salix scouleriana H. E. Parks 1931-5-14 957 Humboldt Little Laribee Ridge, Van Duzen River Comment
  LA208918  Salix scouleriana Harold E. Parks; 1931-5-12 955 a Humboldt Samoa; Humboldt Bay 0 Comment
  SBBG57985  Salix scouleriana H. E. Parks 1931-5-12 951 Humboldt Bishop Pine Lodge, Trinidad 150 Comment
  UC1196700  Salix scouleriana Joseph P. Tracy 1912-2-25 3558 Humboldt at Eureka Northern Coast Region, Eureka 0 Comment
  UC1196702  Salix scouleriana Joseph P. Tracy 1926-10-12 7812 Humboldt near mouth of S. Fork Trinity R. MirandaFour Mile creek; Northern Coast Ranges, Four Mile Creek 609 Comment
  UC490536  Salix scouleriana Joseph P. Tracy 1932-7-13 10518 Humboldt open groung at Corral Prairie (back from the meadows); Klamath Mts., Trinity Summit, Corral Prairie 1524 Comment
  CAS-BOT-BC128995  Salix sitchensis Joseph P. Tracy 1933-7-16 12773 Humboldt South Fork Mountain: in wet meadow at McKay Camp 1676 Comment
  UC481385  Salix sitchensis Harold E. Parks 1931-3-24 910 Humboldt Trinidad 90 Comment
  UC506362  Salix sitchensis Joseph P. Tracy 1933-3-19 10928 Humboldt Van Duzen R. Blue Slide; Northern Coast Ranges, , Blue Slide 91 Comment
  UC526709  Salix sitchensis Joseph P. Tracy 1934-3-25 13168 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  CDA39588  Salix sitchensis Peter Haggard 1993-4-17 s.n. Humboldt Van Duzen River west of Bridgeville on Hwy 36. 0 Comment
  UC275297  Salsola tragus Joseph P. Tracy 1924-8-31 6838 Humboldt Klamath R. at Bluff Creek; Northern Coast Ranges 91 Comment
  UC1239541  Sambucus mexicana Joseph P. Tracy 1933-8-22 12978 Humboldt Eureka; old garbage dump 6 Comment
  CAS-BOT-BC238661  Sambucus nigra subsp. caerulea Henry M. Pollard 1946-8-28 s.n. Humboldt Near summit of Orleans Mt. 1828 Comment
  SDSU2915  Sambucus racemosa var. racemosa Leslie Hickson 1990-4-15 15 IV90D Humboldt Across the street from the Oak Street and Apple Valley Lane junction. Eureka. Comment
  UC642286  Sanicula arctopoides Joseph P. Tracy 1927-6-8 8110 Humboldt Trinidad 3 Comment
  HSC23089  Sanicula bipinnatifida D. E. Anderson 1965-5-1 3564 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  UC179934  Sanicula bipinnatifida Joseph P. Tracy 1914-5-30 4478 Humboldt Northern Coast Region, Alton Alton; Northern Coast Region, Alton 30 Comment
  UC183563  Sanicula bipinnatifida Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3606 Humboldt near Hydesville (Northern Coast Region); Northern Coast Region 30 Comment
  HSC69866  Sanicula crassicaulis Thomas W. Nelson 1978-5-28 4092 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  UC1197092  Sanicula graveolens Joseph P. Tracy 1935-7-14 14069 Humboldt Grouse Mountain 1524 Comment
  UC1197088  Sanicula laciniata Joseph P. Tracy 1936-3-8 14776 Humboldt along South Fork of Eel River, Miranda South Fork Eel River; , Miranda 121 Comment
  UC642339  Sanicula tracyi Joseph P. Tracy 1929-7-4 8614 B Humboldt French Camp Ridge 1066 Comment
  UC647525  Sanicula tracyi Joseph P. Tracy 1939-5-14 16284 Humboldt Buck Mountain 914 Comment
  UCR39791  Sanicula tuberosa D. K. Imper 1982-7-13 s.n. Humboldt Six Rivers Nat. Forest, l mi. 6' north of Chaparral Mtn. 1375 Comment
  HSC21645  Sanicula tuberosa F. Morrell 1949-5-15 Humboldt Berry Summit Comment
  JEPS62814  Satureja douglasii W. L. Jepson 1902-7-1 1966 Humboldt Berry's Ranch Redwood Creek Comment
  UCD13239  Saxifraga mertensiana Collector unknown 1976-4-10 106 Humboldt California: Humboldt Co. Junction of stae Highway 36 with Alderpoint Rd. Elev. 1800 ft. 548 Comment
  UCD126460  Schedonorus arundinaceus A. H. Murphy 1947-5-15 s.n. Humboldt Sherman Flat, ca. 3.5 miles north of Blocksburg. Comment
  CAS-BOT-BC111702  Schoenoplectus pungens var. badius LeRoy Abrams; Rimo Bacigalupi 1922-6-25 8268 Humboldt Big Lagoon south of Orick Comment
  JEPS95079  Schoenoplectus pungens var. badius Vernon Oswald and Lowell Ahart 1997-9-4 8848 Humboldt Big Lagoon County Park, at sw edge of Big Lagoon, entering lagoon at boat ramp Big Lagoon; North Coast Region, Big Lagoon County Park, Big Lagoon 3 Comment
  JEPS79980  Scirpus cernuus Joseph P. Tracy 1938-6-16 15942 Humboldt Trinidad 3 Comment
  UC1541345  Scirpus maritimus Harold E. Parks September 1934 5201 Humboldt Big Lagoon Comment
  HSC7462  Scirpus microcarpus J. R. Kahl 1962-5-4 27 Humboldt 3 mi. S of Trinidad along old Hwy. 101 Comment
  UC709438  Scoliopus bigelovii Joseph P. Tracy 1941-4-26 16862 Humboldt Kneeland Prairie 762 Comment
  SEINET12050513  Scoliopus bigelovii F. H. Utech 1988-1 88 -027 Humboldt 16.6 mi E on CA 36 from junction US 101 near junction of Grizzly Creek & Van Duzen River on CA 36 110 Comment
  SEINET12050517  Scoliopus bigelovii F. H. Utech 1988-1 88 -019 Humboldt along US 101 near junction of Durphy Creek & South Fork Eel River 60 Comment
  HSC37964  Scrophularia californica Peter Sorensen 1976-6-16 Humboldt Woodley Island Comment
  UC582592  Scrophularia californica Joseph P. Tracy 1933-8-22 12980 Humboldt Eureka 6 Comment
  UC582594  Scrophularia californica Joseph P. Tracy 1937-7-30 15565 Humboldt 6 mi se Arcata (Fickle Hill) 609 Comment
  HSC25984  Scutellaria californica Thomas W. Nelson 1970-9-3 228 Humboldt Mad River. Comment
  RSA34313  Scutellaria californica L Larsen 1935-5-28 s.n. Humboldt Redway. Comment
  UC25878  Scutellaria tuberosa C. C. Marshall 1888-1 Humboldt Comment
  HSC99057  Sedum laxum subsp. flavidum Cara Witte 2008-7-11 873 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  CAS-BOT-BC64701  Sedum laxum subsp. heckneri Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC70891  Sedum laxum subsp. heckneri Gail Newton 1980-7-23 1707 Humboldt Near Packsaddle Ridge 1463 Comment
  UC169908  Sedum laxum subsp. heckneri Harley P. Chandler June, 1901 1439 Humboldt Klamath River North Coast Ranges, Klamath River 304 Comment
  UC667087  Sedum laxum subsp. heckneri Joseph P. Tracy 1927-5-15 8055 Humboldt near Hoopa Valley (Supply Creek, on barren rocky bluffs); Northern Coast Ranges, near Hoopa Valley 457 Comment
  HSC97172  Sedum radiatum Erin Lonergan, Benjamin Hart 2007-6-11 7 Humboldt 14.1 mi. S of Hwy. 299 on FS Rd. NF1 1524 Comment
  HSC74677  Sedum spathulifolium Gail Newton 1981-5-16 2170 Humboldt Near Bug Creek. 1228 Comment
  UC2046852  Sedum spathulifolium R. E. Brainerd with N. Otting 2012-6-9 2042 Humboldt Humboldt County: Pine Ridge Road, headwaters of Lacks Creek drainage; ca. 17.5 air miles east-northeast of Arcata. Comment
  RSA0074769  Sedum spathulifolium F. W. Peirson 1923-7-11 3957 Humboldt About 12 miles S of Orick. Comment
  HSC71086  Sedum stenopetalum Thomas W. Nelson, Jane Nelson 1977-5-30 3405 Humboldt Large rock downstream from Anderson's Ford 640 Comment
  LA209677  Selaginella oregana Lawrence L. Kiefer; 1963-8-6 769 Humboldt Patrick's Point State Park, Lookout Rock 45 Comment
  UC1225807  Selaginella wallacei Joseph P. Tracy 1948-5-31 17998 Humboldt Harris 609 Comment
  UC302053  Selaginella wallacei Joseph P. Tracy 1912-7-26 3850 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  CDA19897  Senecio cineraria P. Haggard 2002-7-1 PDR P 070939 Humboldt Northern California; on Hwy 36 near Carlotta. 0 Comment
  HSC95089  Senecio elegans Andrea Pickart 2002-6-4 116 Humboldt N of 'Power pole' site Comment
  HSC98958  Senecio integerrimus var. major Cara Witte 2008-7-28 950 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1565 Comment
  CAS-BOT-BC364221  Senecio sylvaticus W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Penninsula [Peninsula] Comment
  UC581710  Senecio triangularis Joseph P. Tracy 1932-7-13 10523 Humboldt Corral Prairie , Corral Prairie (Trinity Summit) 1584 Comment
  UC581709  Senecio triangularis Joseph P. Tracy 1930-7-16 8934 Humboldt in wet meadow at McKay Camp (South Fork Mountain); , McKay Camp 1676 Comment
  HSC6135  Senecio vulgaris S. R. Johnson 1965-4-16 42 Humboldt 1 mi. N of Luffenholtz Beach Comment
  HSC90383  Senecio vulgaris Jean Hanson 1980-4-12 48 Humboldt Eureka, Indian Island in Humboldt Bay, W end of island. Comment
  CAS-BOT-BC85843  Sequoia sempervirens Joseph P. Tracy 1925-3-15 6945 Humboldt Blue Slide on Van Duzen River 91 Comment
  SEINET5334848  Sequoia sempervirens P. A. Lehenbauer 1857 Humboldt near Eureka Comment
  SEINET11802379  Sericocarpus rigidus J. P. Tracy 1950-1 19378 Humboldt about 3 mi SW of Orleans Comment
  UC212874  Setaria pumila Joseph P. Tracy 1919-9-13 5193 Humboldt Trinity R. Valley near Willow Creek; Northern Coast Ranges, Trinity R. Valley 152 Comment
  UC1198392  Sidalcea diploscypha Joseph P. Tracy 1916-6-19 4717 Humboldt near Forks of Dobbyn Creek; Northern Coast Ranges, nr Forks of Dobbyn Creek 182 Comment
  HSC16035  Sidalcea diploscypha Lincoln Constance 1934-5-23 613 Humboldt SW slope, upper end of Look Prairie, S Fork Eel River, Bull Creek region 366 Comment
  CAS-BOT-BC205571  Sidalcea malachroides Joseph P. Tracy 1938-6-7 15860 Humboldt Canyon Creek, 5 miles SE of Korbel 152 Comment
  UC144092  Sidalcea malachroides J. P. Tracy 1909-7-4 3010 Humboldt immediate vicinity Eureka; immediate vicinity of Eureka 0 Comment
  POM160275  Sidalcea malviflora subsp. nana Joseph P. Tracy 1926-6-20 s.n. Humboldt Horse Mountain. 1524 Comment
  HSC103274  Sidalcea malviflora subsp. patula John McRae 2007-6-10 Humboldt Approx. 75 ft. N of NE corner of Fieldbrook School property, west side of Fieldbrook Rd., on private property. 44 Comment
  HSC98049  Sidalcea oregana subsp. eximia Cara Witte 2007-7-19 545 Humboldt Ammon Ridge Road. Approximately 1/4 mile east of intersection with National Forest 1. 1560 Comment
  JEPS67257  Sidalcea oregana subsp. eximia Joseph P. Tracy 1917-9-1 4831 Humboldt Murphy meadow Northern Coast Range, , Murphy meadow (Bald Mountain) 1066 Comment
  HSC58187  Sidalcea oregana subsp. spicata G. L. Clifton, Griswold 1979-8-2 12277 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC101060  Sidalcea oregana subsp. spicata Sydney Carothers, Thomas W. Nelson 1996-8-18 191 Humboldt Six Rivers National Forest; Groves Prairie 451 Comment
  CDA18218  Silene californica G. D. Barbe, T. C. Fuller 1974-6-17 1846 Humboldt North Coast Ranges; Shelter Cove, Upper Pacific Drive, at Sea View Rd. 91 Comment
  JEPS50977  Silene californica W. L. Jepson 1902-7-1 1962 Humboldt Hupa Road , Hupa Road (Redwood Creek) Comment
  CAS-BOT-BC174878  Silene campanulata subsp. glandulosa Carl B. Wolf 1927-8-27 1155 Humboldt On the Klamath River 2 mi. below the Salmon River Comment
  HSC102130  Silene campanulata subsp. glandulosa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1034 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  JEPS22945  Silene campanulata subsp. glandulosa Volney Rattan 1883-1 Humboldt Hoopa Valley Comment
  HSC36645  Silene gallica J. D. Ackerman 1974-5-25 261 Humboldt Trinidad, South Trinidad Beach, S of Trinidad Head. Comment
  UC1223229  Silene hookeri Joseph P. Tracy 1950-6-23 18880 Humboldt nw slope of Buck Mountain , Burr Valley (Burr Valley Road, Burr Valley) 1066 Comment
  CAS-BOT-BC389051  Silene laciniata subsp. californica J. Clausen 1932-9-17 676 Humboldt On a roadbank between Willow Creek and Redwood Creek 304 Comment
  HSC95117  Silene laciniata subsp. californica Chris Lee 2002-4-27 23 Humboldt Willow Creek, Brannon Mtn. Rd., .5 mi. W of jct. with Hwy. 96 Comment
  UC465640  Silene latifolia subsp. alba Mrs. M. H. Manning 1901-1 Humboldt near Hupa (Hoopa Valley); near Hupa, Hoopa Valley Comment
  UC1198284  Sinapis arvensis J. P. Tracy 1906-6-20 2494 Humboldt immediate vicinity of Eureka 0 Comment
  HSC23117  Sisyrinchium californicum Norman Dennis 1965-6-3 142 Humboldt Big Lagoon County Park, SW corner of Big Lagoon Comment
  UC1134655  Smilacina racemosa R. Stahelin 1933-5-15 L.H. 23 Humboldt Freshwater Eureka Quadrangle (T.P.L. Co.) Comment
  HSC47104  Solanum aviculare J. O. Sawyer 1978-11-5 3324 Humboldt Old Stagecoach rd. 1/5 mi. N of entrance to Trinidad Beach State Park Comment
  JEPS12064  Solanum furcatum Joseph P. Tracy 1940-10-5 16749 Humboldt Trinidad, near boat landing Trinidad 9 Comment
  HSC73842  Solanum parishii Gail Newton 1980-6-7 137 Humboldt Near Brush Mtn. 1128 Comment
  UC1196157  Solanum sarrachoides Joseph P. Tracy 1940-10-15 16758 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  UC577403  Solanum umbelliferum Joseph P. Tracy 1937-6-20 15340 Humboldt Bear River, 10 mi up stream from the mouth Bear River 152 Comment
  SD58226  Solidago canadensis subsp. elongata Joseph P. Tracy 1937-8-12 15654 Humboldt Snow Camp 1399 Comment
  HSC76050  Solidago elongata Overton, Butler 1979-8-2 12539 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  HSC76412  Solidago elongata D. K. Imper 1981-7-21 887 Humboldt Near Table Bluff 38 Comment
  UC1541617  Solidago elongata H. E. and S. T. Parks 1930-9-14 785 Humboldt n shore Big Lagoon Comment
  UC630465  Solidago elongata H. E. and S. T. Parks September 1937 24081 Humboldt Spruce Cove , Spruce Cove (Trinidad) 64 Comment
  CAS-BOT-BC365665  Solidago spathulata Mary O'Conor 1921-9-26 s.n. Humboldt Eureka Comment
  LA204224  Solidago spathulata S. K. Harris; 1939-9-5 990 Humboldt Samoa Comment
  UC165033  Solidago spathulata J. P. Tracy 1901-8-7 1268 Humboldt opposite Eureka (Ocean Beach of Samoa); Samoa Comment
  BLMAR757  Solidago velutina subsp. californica Jennifer Wheeler 2013-9-4 757 Humboldt King range, strawberry rock grazing allotment 252 Comment
  HSC39962  Soliva sessilis Linda M. Barker 1976-4-13 1385 Humboldt 3 mi. W of Arcata Comment
  UC164790  Sonchus asper J. P. Tracy 1903-8-2 1925 Humboldt immediate vicinity Eureka 0 Comment
  UC582433  Sonchus asper Joseph P. Tracy 1932-5-22 10115 Humboldt between Miranda and Redway (South Fork Eel River); North Coast Ranges, South Fork Eel River 91 Comment
  CAS-BOT-BC157210  Sorbus californica Doris K. Kildale 1926-9-5 2635 Humboldt Lasseck's Peaks on trail to Red Peak 1661 Comment
  UC526834  Sorghum halepense Joseph P. Tracy 1925-9-6 7263 Humboldt near the S. Fork Trinity R. Valley; Northern Coast Ranges, Trinity R. Valley 182 Comment
  UC1099915  Sparganium emersum var. emersum Malcolm A. Nobs and S. Galen Smith 1949-8-9 1228 Humboldt 1 mi n Arcata (at junction of Highway 101 and Highway 299); Mad River Valley Comment
  HSC89257  Spartina alterniflora Karen Kovacs 1989-10-26 Humboldt .5 mi. N of Samoa-Eureka bridge, E of Hwy. 255, Humboldt Bay Comment
  RSA10096  Spartina densiflora Joseph P. Tracy 1924-8-4 6738 Humboldt Eureka, Marsh at R.R. station Comment
  HSC12566  Spergula arvensis D. La Conte 1970-8-10 3 Humboldt Comment
  HSC79184  Spergula arvensis L. P. Janeway 1984-2-6 711 Humboldt .25 mi. up Hidden Creek Rd. from LK Wood Blvd. 46 Comment
  RSA246888  Spergularia macrotheca R. F. Thorne, Percy C. Everett 1965-8-8 35277 Humboldt N edge of Eureka, E of Hwy 101. 3 Comment
  HSC95251  Spergularia macrotheca var. macrotheca Andrea Pickart 2002-6-27 125 Humboldt Mad River Slough and Dunes, N of parking lot area at N end of access road. 0 Comment
  CDA3442  Spergularia rubra T. C. Fuller 1958-6-17 599 -58 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  RSA0098106  Spergularia rubra James Payne Smith 1976-5-27 8814 Humboldt Arcata, corner of 14th and G Street. Comment
  HSC37969  Spergularia salina Peter Sorensen 1976-6-19 Humboldt Woodley Island Comment
  HSC49824  Spergularia salina R. York 1979-4-16 238 Humboldt E of the Emerson Mill along Samoa Blvd. Comment
  JEPS45013  Spiraea douglasii W. L. Jepson 1902-6-24 1924 Humboldt Eureka to Arcata Comment
  JEPS45015  Spiraea douglasii Milo S. Baker 1923-7-14 5 Humboldt highway between Scotia and Fortuna Comment
  UC180171  Spiraea douglasii Joseph P. Tracy 1914-9-6 4604 Humboldt Bald Mountain Northern Coast Ranges (between High Prairie and Snow Camp, toward Snow Camp) 1219 Comment
  HSC55605  Spiraea splendens var. splendens Overton, Butler 1979-7-23 9444 Humboldt Near Horse Mtn. Mine, close to the town of Willow Creek 1295 Comment
  UC1196401  Spiranthes romanzoffiana Joseph P. Tracy 1941-8-24 17037 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  BLMAR221  Spiranthes romanzoffiana Jennifer Anthony-Wheeler 1996-7-26 221 Humboldt King range, growing with annual & perrenial grasses 91 Comment
  HSC36650  Spiranthes romanzoffiana J. D. Ackerman 1975-8-9 631 Humboldt Corner of Guintoli Lane and West End Rd. Vacant lot. Comment
  UC668222  Stachys ajugoides var. ajugoides Joseph P. Tracy 1938-6-15 15931 Humboldt Fortuna 18 Comment
  UCLA71151  Stachys ajugoides var. rigida Huron H. Smith 1911-6-5 3782 Humboldt Camp 20 Vances Comment
  HSC12030  Stachys arvensis D. Santana 1970-11-2 113 Humboldt 14th and B St. Arcata Comment
  RSA26844  Stachys chamissonis I. L. Wiggins 1940-7-10 9489 Humboldt Table Bluff Comment
  UCLA54082  Stachys chamissonis H. Lewis 1940-7-3 Humboldt Little River Beach State Park Comment
  HSC27045  Stachys mexicana Brad Klipfel 1973-8-25 289 Humboldt Near Lazy L Ranch, Fickle Hill Rd. Comment
  HSC38526  Stachys rigida D. E. Anderson, J. P. Smith 1971-6-18 - 1070 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  HSC14418  Stachys rigida P. Markle 1962-5-19 47 Humboldt Beginning of trail in woods near HSC campus near reservoir 30 Comment
  RSA32867  Stachys rigida subsp. quercetorum A. A. Heller 1923-7-8 s.n. Humboldt Near Pepperwood Comment
  UC1198342  Stellaria borealis subsp. sitchana Joseph P. Tracy 1912-7-21 3776 Humboldt Alton; Northern Coast Region 30 Comment
  HSC75438  Stellaria media J. O. Sawyer 1980-7-18 3580 Humboldt North Trinity Mountain Research Natural Area, north of Mill Creek Lake to Red Cap Hole. Comment
  UC1198340  Stellaria nitens Joseph P. Tracy 1933-6-13 12563 Humboldt near Hoopa Mountain summit (on road w from Hoopa to Bair's); Northern Coast Ranges, Hoopa Mountain 1066 Comment
  HSC32538  Stephanomeria virgata Thomas W. Nelson 1973-8-19 1115 Humboldt McKeown Ranch N of Dinsmore Comment
  OBI22262  Stipa lemmonii Joseph P. Tracy 1938-6-17 15968 Humboldt Panther garp, on the road from Bull Crk to Upper Mattole 823 Comment
  UC1281747  Streptanthus tortuosus Richard Spellenberg 1965-6-14 1130 Humboldt rocky outcrops in grassland s airport (about 5 mi e of Kneeland) Comment
  UC492252  Streptanthus tortuosus var. orbiculatus Joseph P. Tracy 1932-7-12 10457 Humboldt head of Brett Hole Klamath Mountains, Trinity Summit 1828 Comment
  HSC35696  Streptanthus tortuosus var. tortuosus Thomas W. Nelson, B. Reinhardt 1975-7-30 2103 Humboldt Beside road out Whiting Ridge Comment
  HSC57137  Streptanthus tortuosus var. tortuosus Walter Overton, Marvin Butler 1979-7-25 9914 Humboldt Near Grouse Mtn., close to the town of Willow Creek 1646 Comment
  HSC57631  Streptanthus tortuosus var. tortuosus G. L. Clifton, Terry Griswold 1979-7-25 10783 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC58105  Streptanthus tortuosus var. tortuosus G. L. Clifton, Terry Griswold 1979-8-1 12040 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  HSC57156  Streptopus amplexifolius Overton, Butler 1979-7-26 9955 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek 1326 Comment
  HSC58336  Streptopus amplexifolius Overton, Butler 1979-8-2 12644 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC666977  Streptopus amplexifolius var. americanus Joseph P. Tracy 1937-7-2 15411 Humboldt head of Little Hors-Linto Creek; Trinity Summit 1371 Comment
  HSC17760  Stuckenia pectinata Rollin Sparrowe 1962-5-16 25 Humboldt S of road Comment
  UC1585428  Symphoricarpos albus var. laevigatus R. Raiche, K. Zadnik, and H. Forbes 1989-10-2 26 Humboldt sw of Hoopa (on Bair Rd, at Pine Ridge Summit); Pine Ridge Summit 970 Comment
  HSC38332  Symphyotrichum chilense Peter Sorensen 1976-8-8 Humboldt King Salmon Comment
  HSC95386  Symphyotrichum chilense Andrea Pickart 2002-7-9 174 Humboldt Bracut Marsh in zone between brackish and riparian 10 Comment
  UC1222774  Synthyris reniformis Joseph P. Tracy 1950-4-20 18614 Humboldt 1 mi w Dinsmore's (on Van Duzen River); Van Duzen River Comment
  UC582541  Synthyris reniformis Joseph P. Tracy 1936-2-28 14771 Humboldt Trinidad, on coast Trinidad Comment
  UCD124639  Synthyris reniformis D. C. Hagar 1957-4-4 145 Humboldt Happy Camp Mountain, ca. 5.5 miles northwest of Salyer. 1219 Comment
  CAS-BOT-BC376724  Tanacetum bipinnatum David D. Keck; J. Clausen 1935-6-16 3388 Humboldt Mouth of Little River Comment
  SBBG52996  Tanacetum camphoratum J. D. Hobson -Jul-1966 Humboldt Loleta Comment
  UC166081  Tanacetum camphoratum J. P. Tracy 1909-7-18 3020 Humboldt opposite Eureka (ocean beach at Samoa); Samoa Comment
  UCR122356  Tanacetum camphoratum George K. Helmkamp, E. A. Helmkamp 2001-7-8 7012 Humboldt North Coast, Samoa Peninsula, 2.6 miles south of CA Hwy 255 bridge across Humboldt Bay 15 Comment
  UC1223144  Taraxacum officinale Joseph P. Tracy 1949-6-6 18301 Humboldt 1.5 mi n Forest Service Public Camp (Trinity Summit Road); Happy Camp Mountain 1219 Comment
  HSC59652  Taraxacum officinale Michael Dalke 1979-4-1 12 Humboldt 0.1 mi. E of Hwy. 101, N Bank Rd. 12 Comment
  RSA254744  Tauschia kelloggii Thomas W. Nelson, James Nelson 1973-5-28 956 Humboldt McKeown Ranch north of Dinsmore. Comment
  SJSU685  Taxus brevifolia A. W. Jacobs 1941-6-15 Humboldt border of road (Hwy 299) between Blue Lake & Redwood Creek Comment
  HSC44530  Tellima grandiflora Brad Klipfel 1973-7-1 138 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC63223  Tellima grandiflora M. A. Baker 1978-5-6 511 Humboldt 2 km. S of Weitchpec Comment
  HSC100622  Thalictrum polycarpum Carl C. Marshall Jun 1887 410 Humboldt Throughout Humboldt County. Comment
  CAS-BOT-BC77704  Thelypteris Joseph P. Tracy 1937-7-25 15556 Humboldt Happy Camp Mountain (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  CAS-BOT-BC81320  Thuja plicata Ira L. Wiggins 1955-7-31 13594 Humboldt Hillside 9 mi. E of Arcata along Highway 299 316 Comment
  CHSC19508  Thuja plicata Wendell Wood 1970-9-22 298 Humboldt McKinleyville. East end of Chateau Way. 106 Comment
  HSC45916  Thuja plicata Jerome Peterson 1978-4-16 6 Humboldt HSU Campus near Home Economics Building Comment
  SBBG34242  Thuja plicata L. Rowntree 1931-7-27 Humboldt near Ferndale Comment
  UC212991  Thuja plicata Joseph P. Tracy 1920-9-19 5401 Humboldt North Fork Mad River North Coast Ranges, North Fork Mad River 304 Comment
  UCD134040  Thuja plicata Roman Gankin 1965-8-7 562 Humboldt Near edge of sphagnum bog just north of parking area; Big Lagoon County Park. Comment
  HSC97624  Thysanocarpus curvipes Cara Witte 2007-6-4 194 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UCSC000347  Tiarella trifoliata subsp. unifoliata R. Stahelin 1933-5-17 s.n. Humboldt Eureka, Arcata City Park Comment
  HSC98749  Tiarella trifoliata var. unifoliata Cara Witte 2008-7-7 841 Humboldt National Forest Road 5N10. 2 miles south of intersection with Friday Ridge Road. Near waterhole sign. 1224 Comment
  HSC43174  Tiarella trifoliata var. unifoliata R. Sutherland 1976-8-13 13 .13876 Humboldt Whittemore Grove. 91 Comment
  RSA29344  Tiarella trifoliata var. unifoliata E. K. Balls, Percy C. Everett 1953-10-11 18599 Humboldt Fleishman s Grove, north boundary, Hwy 101 between Miranda and Weott. 152 Comment
  SEINET3888616  Tofieldia occidentalis Carl B. Wolf 1934-7-2 5878 Humboldt Snow Camp (Mts. E. of Korbel). Near small lake.; 0 1372 Comment
  UC180222  Tofieldia occidentalis subsp. occidentalis Joseph P. Tracy 1914-9-6 4606 Humboldt near Seidell Ranch (peat bog); Bald Mountain, between High Prairie and Snow Camp Comment
  HSC27852  Tolmiea diplomenziesii Clifton Raymond Chesbrough 1973-6-19 60 Humboldt 0.25 mi. from Harris and T St. on U St. Comment
  UC154107  Tolmiea diplomenziesii Joseph P. Tracy 1908-6 2876 Humboldt opposite Buck Mountain (Valley of Van Duzen River); Northern Coast Ranges 762 Comment
  UC858947  Tolmiea diplomenziesii Eliz. Parsons Hawver Jun 1915 Humboldt Carlotta Comment
  UC11947  Tolmiea diplomenziesii W. C. Blasdale Jun 1899 5887 Humboldt Weitchpec North Coast Ranges, Klamath River (on the Klamath River, opposite the mouth of the Trinity) Comment
  UC1541368  Tonella tenella H. E. Parks and J. P. Tracy 1930-5-25 856 Humboldt Larabee Valley 762 Comment
  UC906646  Torilis arvensis Joseph P. Tracy 1946-6-15 17557 Humboldt Berry's Mt on Trinity Highway east of Redwood Creek 609 Comment
  CHSC33049  Torilis arvensis subsp. arvensis Thomas Nelson; Jane Nelson 1978-7-2 4387 Humboldt Along highway 36 ca. 1 mile east of Grizzly Creek. Comment
  JEPS14165  Torilis nodosa Lincoln Constance 1934-5-27 706 Humboldt South Fork Eel River, S end of Dyerville Bridge 45 Comment
  HSC58401  Torreyochloa pallida var. pauciflora Griswold, Butler 1979-7-11 7032 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  SEINET244810 Image available Torreyochloa pallida var. pauciflora J. P. Tracy 1934-7-18 13429 Humboldt Grouse Mountain. 1524 Comment
  JEPS63913  Toxicodendron diversilobum W. L. Jepson 1932-8-1 16469 Humboldt Bull Creek 121 Comment
  CAS-BOT-BC323057  Tracyina rostrata Joseph P. Tracy 1930-6-15 8762 Humboldt Dobbyn Creek 152 Comment
  CAS-BOT-BC377101  Tragopogon porrifolius Doris K. Kildale 1925-3-23 587 Humboldt Eureka 30 Comment
  CAS-BOT-BC399989  Trautvetteria caroliniensis Joseph P. Tracy 1937-7-25 15564 Humboldt Happy Camp Mountain. (In Trinity Summit Range, northeast of Hawkins Bar.) 1280 Comment
  BLMAR277  Trientalis latifolia Jennifer Anthony-Wheeler 1999-7-30 277 Humboldt Headwaters Forest Reserve, growing in shaded places esp woodlands 548 Comment
  UCD107571  Trifolium albopurpureum W. Williams 1951-1 s.n. Humboldt Keithly Ranch. Comment
  UC180224  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1914-5-14 4452 Humboldt Fort Seward 121 Comment
  UC1197493  Trifolium barbigerum Joseph P. Tracy 1904-4-24 2027 Humboldt Ocean Beach Humboldt Bay Comment
  UC1223507  Trifolium barbigerum Joseph P. Tracy 1950-6-18 18841 Humboldt 1 mi e Cape Mendocino (on slopes); Cape Ridge 152 Comment
  UC495698  Trifolium barbigerum Joseph P. Tracy 1927-5-14 8028 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC100528  Trifolium bifidum Carl C. Marshall Jun 1885 33 Humboldt Bear River. Comment
  UCD108818  Trifolium dubium Linda M. Barker 1976-5-13 1476 Humboldt Lanphere-Christensen Dunes. 3 miles west of Arcata. Comment
  JEPS79999  Trifolium eriocephalum var. eriocephalum Joseph P. Tracy 1930-6-29 8821 Humboldt nw slope Buck Mtn (lower foothills); Northern Coast Ranges Comment
  BLMAR736  Trifolium fucatum Jennifer Wheeler 2015-5-8 736 Humboldt Larabee Butte, at Butte Creek Access Rd off Hwy 36 in drainage ditches 722 Comment
  UC1223457  Trifolium fucatum Joseph P. Tracy 1935-5-25 13831 Humboldt Blocksburg Comment
  HSC45123  Trifolium fucatum R. Sutherland 5 .19578 Humboldt 128 Comment
  UC1197022  Trifolium fucatum Joseph P. Tracy 1906-6-10 2470 Humboldt nw slope Wragletown (lower foot); Northern Coast Ranges 152 Comment
  RSA168894  Trifolium gracilentum Joseph P. Tracy 1933-5-20 12233 Humboldt 4 miles south of Cape Mendocino. Comment
  CHSC69825  Trifolium incarnatum J. P. Smith; J. O. Sawyer, Tom Nelson 1972-4-22 Humboldt Freeway exit at Benbow. Planted by the Department of Highways. Comment
  UCSB30613  Trifolium longipes subsp. elmeri David Edwards 1974-8-1 76 Humboldt collected 2.50 mi SW, along the N-side of a dirt road, 50 ft N of Mad River, at 45 degree bend river, 0.50 mi S of Putter Creek Korbel - Mad River, Putter Creek and Korbel 27 Comment
  HSC99351  Trifolium longipes subsp. hansenii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-28 197 Humboldt Near North Trinity Mtn and Water Dog Lakes, Six Rivers National Forest. 1826 Comment
  UC1197236  Trifolium macraei Joseph P. Tracy 1911-5-30 3204 Humboldt Bucksport Northern Coast Ranges, Humboldt Bay 0 Comment
  HSC45140  Trifolium microcephalum R. Sutherland 1978-5-19 6 .19578 Humboldt Bridge over Redwood Creek at 'Shop Rd. 128 Comment
  HSC40950  Trifolium microdon Linda M. Barker 1976-6-1 1544 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  UC1541578  Trifolium oliganthum Parks and Tracy 1930-5-25 957 Humboldt Laribee Valley 762 Comment
  HSC15108  Trifolium repens W. F. Nickel 1965-4-28 Humboldt On Humboldt State Campus behind biological science building, near baseball field. Comment
  HSC45167  Trifolium repens R. Sutherland 1978-5-16 8 .16578 Humboldt 157 Comment
  HSC84044  Trifolium subterraneum L. P. Janeway 1983-4-30 240 Humboldt 21 Comment
  HSC2148  Trifolium variegatum Elrid H. Spinas 1948-6-16 55 Humboldt Horse Mtn. Comment
  UC1197564  Trifolium variegatum var. melananthum Joseph P. Tracy 1915-6-6 4643 Humboldt Steven Hill place Northern Coast Region (Eureka) 0 Comment
  UC1103453  Trifolium variegatum var. variegatum J. P. Tracy 1901-5-21 1103 Humboldt Eureka vicinity 0 Comment
  UC1197556  Trifolium variegatum var. variegatum J. P. Tracy 1909-5-2 2966 Humboldt Eureka vicinity 0 Comment
  HSC32919  Trifolium willdenovii Thomas W. Nelson, James Nelson 1973-5-28 966 Humboldt McKeown Ranch N of Dinsmore Comment
  HSC49043  Trifolium willdenovii Patricia Shesgreen 1978-5-6 71 Humboldt Arthur W. Way Memorial Park campground. 100 yds. N of Mattole River. Comment
  HSC15189  Trifolium wormskioldii S. J. Moore 1965-5-10 33 Humboldt Near mouth of Little River Comment
  UCD109957  Trifolium wormskioldii W. A. Williams 1956-6-19 s.n. Humboldt Domingues Creek. 91 Comment
  RSA32656  Triglochin maritima Doris K. Kildale 1927-7-10 3740 Humboldt Big Lagoon Comment
  HSC93841  Triglochin striata Gordon Leppig 1999-10-25 1267 Humboldt Hwy. 101, mi. marker 61.40, E side of Hwy. 2 Comment
  HSC15686  Trillium albidum W. D. Stevens 1964-5-16 16 Humboldt 1.0 mi. N of Kneeland School Comment
  UC1222529  Trillium albidum Joseph P. Tracy 1950-4-20 18615 Humboldt 2 mi. w. Dinsmosre's (lower foothills of n.w. slope of Buck Mt.); Buck Mt. 762 Comment
  UC902042  Trillium angustipetalum Joseph P. Tracy 1949-6-25 18350 Humboldt near Box Camp Trinity Summit 1524 Comment
  CHSC62019  Trillium ovatum J. R. Biddison 1993-4-7 13 Humboldt Phillipsville, Avenue of the Giants, w side of road, 1 mi s of hwy 101 junction. 45 Comment
  HSC74571  Trillium ovatum M. A. Baker 1980-5-17 1192 Humboldt Near Le Perron Peak 792 Comment
  UC1197828  Trillium ovatum Joseph P. Tracy 1913-3-9 4019 Humboldt near Hydesville Hydesville; Northern Coast Region 60 Comment
  HSC45264  Trillium ovatum M. Alcasas 1978-4-7 1 Humboldt Freshwater Rd. 0.5 mi. N of Kneeland Post Office 732 Comment
  UC1103503  Trillium ovatum Joseph P. Tracy 1933-6-13 12587 Humboldt near summit of rd. from Hoopa w. to Bair's (Hoopa Mt.); Hoopa Mt. 1066 Comment
  UCD18653  Trillium ovatum Roman Gankin 1956-3-17 105 Humboldt off US Hwy 101. Comment
  CAS-BOT-BC521313  Trillium rivale Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mountain 1524 Comment
  HSC100565  Trillium sessile Carl C. Marshall Apr 1884 393 Humboldt Hoopa Valley. Comment
  HSC47606  Triphysaria eriantha J. P. Smith 1977-4-23 9031 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground. 561 Comment
  UC1222437  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1942-5-29 17088 Humboldt Eureka 6 Comment
  UC1222444  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1927-4-24 7929 Humboldt Eureka 6 Comment
  RSA10081  Trisetum canescens Joseph P. Tracy 1926-6-6 7557 Humboldt Northern Coast Ranges, Hoopa Mountain, near summit on road west from Hoopa to Bair's. 1067 Comment
  UCD93885  Trisetum canescens R. Tofsrud 1948-9-1 s.n. Humboldt Road between Horse Mt. and Grouse Mt. 1371 Comment
  UC922031  Trisetum cernuum Joseph P. Tracy 1939-4-25 16223 Humboldt Bull Creek 60 Comment
  UCD93904  Trisetum cernuum A. H. Murphy 1947-8-5 s.n. Humboldt Bald Hills, 7-8 miles SE of Orick. Comment
  UCD93909  Trisetum cernuum Joseph P. Tracy 1939-4-25 16223 Humboldt Bull Creek. 60 Comment
  UC15028  Triteleia bridgesii Mrs. M. H. Manning 1901-7-15 21 Humboldt near Hupa (trail below Mud Springs) Comment
  HSC53803  Triteleia hyacinthina Griswold, Butler 1979-7-10 6233 Humboldt Near Kinsey Ridge, close to the town of Willow Creek 1244 Comment
  RSA183507  Triteleia hyacinthina D. E. Anderson 1965-5-15 3698 Humboldt About 5 miles N of Hoopa on Bald Hills Road. Comment
  HSC38485  Triteleia laxa D. E. Anderson, J. P. Smith 1971-6-18 - 1065 Humboldt Chezem Rd., about 3 mi. E of bridge over Redwood Creek Comment
  SD649  Triteleia laxa Mary S. Snyder 1894-5-14 Humboldt Eel River. 320 Comment
  SEINET200771  Triteleia laxa Joseph P. Tracy 1947-6-8 17704 Humboldt Carlotta; Open flat by old Strong's District School House 5 miles east of town 46 Comment
  UC1197719  Triteleia laxa Joseph P. Tracy 1914-7-5 4563 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges 1066 Comment
  CAS-BOT-BC526357  Triteleia laxa L. R. Abrams 1918-6-14 7089 Humboldt Korbel to Three Creeks near March's ranch Comment
  JEPS557  Triteleia laxa Joseph P. Tracy 1938-7-5 16001 Humboldt 5 mi e Carlotta (by old Strong's District School House) 45 Comment
  UC666896  Triteleia laxa Joseph P. Tracy 1938-7-5 16001 Humboldt in woods by old Strong's District School House (5 mi e of Carlotta) 45 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
  CAS-BOT-BC85897  Tsuga heterophylla Doris K. Kildale 1927-4-10 3078 Humboldt Prairie Creek in deep woods Comment
  CAS-BOT-BC85899  Tsuga heterophylla Doris K. Kildale 1927-5-13 3127 Humboldt Green Point, Redwood Creek Road Comment
  HSC49358  Tsuga heterophylla Thomas W. Nelson, Jane P. Nelson 1979-9-10 5065 Humboldt Old logging rd. S of Lundbar Hills section of Eureka 49 Comment
  OBI33131  Tsuga heterophylla David J. Keil 1983-7-2 17305 Humboldt Freeway exit from US 101 at Patrick's Point Comment
  SDSU2008  Tsuga heterophylla D. F. Howe 1963-7-7 3616 Humboldt 5 miles north of Orick on #101. Comment
  UC672886  Typha latifolia Joseph P. Tracy 1934-7-14 13398 Humboldt along Mad River near Blue Lake; along Mad River, near Blue Lake 15 Comment
  HSC59117  Umbellularia californica Terry Roth 1979-5-24 85 Humboldt 0.25 mi. down N Bank Rd. from its junction with Hwy. 10 exit at residence 30 Comment
  HSC21678  Urtica dioica subsp. gracilis Francis Winter 1960-4-19 Humboldt Samoa peninsula 5 miles W of Arcata. Comment
  HSC59082  Urtica dioica subsp. gracilis Thomas Wood 1979-5-1 144 Humboldt Arcata, near house at 3799 Spear Ave., along fence. 9 Comment
  CAS-BOT-BC193964  Vaccinium cespitosum Harley P. Chandler 1901-5-1 1181 Humboldt Humboldt Bay 30 Comment
  UC1197773  Vaccinium cespitosum J. P. Tracy 1901-4-7 1007 Humboldt immediate vicinity Eureka 0 Comment
  HSC73023  Vaccinium membranaceum Gail Newton 1980-8-10 2001 Humboldt Near Blake Mtn. 1798 Comment
  HSC47491  Vaccinium ovatum Sheila Logan 1978-4-9 15 Humboldt Fieldbrook, 1/2 mi. E of McKinleyville on Murray Rd. 122 Comment
  HSC7917  Vaccinium ovatum D. E. Anderson 1961-9-23 1832 Humboldt 2.3 mi. S of Kneeland corner Comment
  HSC89511  Vaccinium ovatum M. Roantree 1985-4-25 6 Humboldt E side of Trinidad Head. Comment
  RSA2925  Vaccinium ovatum C. B. Wolf 1931-8-29 1240 Humboldt Near summit of Orick Hill on road to Weitchpec. 305 Comment
  SEINET3107074  Vaccinium ovatum Steve Selva, Roger Jensen 1974-8-28 96 Humboldt Redwood forest behind Humboldt State University, Arcata. Comment
  UC902049  Vaccinium ovatum Joseph P. Tracy 1949-6-20 18323 Humboldt near Boynton Prairie 609 Comment
  UCR178913  Vaccinium ovatum R. G. Swinney 1968-4-13 242 Humboldt North Coast, Lanphere's Preserve, west of Arcata 15 Comment
  HSC66213  Vaccinium parvifolium M. Sacks 1977-5-8 1 Humboldt S end of Patricks Point State Park, ca. 0.2 mi. W of Hwy. 101 and 5 mi. N of Trinidad 61 Comment
  UC463032  Vaccinium parvifolium E. B. Copeland 1931-8-17 Humboldt Below Dinsmore; Van Duzen River Comment
  CAS-BOT-BC199494  Vaccinium uliginosum Doris K. Kildale 1925-8-18 1257 Humboldt Trinity Summit - McKay's [McKay] Prairie 1524 Comment
  UC1239591  Valeriana sitchensis subsp. scouleri Joseph P. Tracy 1924-8-10 6802 Humboldt Van Duzen River bank, near Strongs Station; Van Duzen River 60 Comment
  UC416772  Valeriana sitchensis subsp. sitchensis Mrs. M. H. Manning Aug. 1899 Humboldt Trinity Summit Comment
  JEPS9387  Valeriana sitchensis subsp. sitchensis Joseph P. Tracy 1930-7-17 8991 Humboldt South Fork Mountain at Mckay Camp South Fork Mountain 1676 Comment
  JEPS52976  Vancouveria W. L. Jepson 1932-8-1 16471 Humboldt Bull Creek; deep woods at Geant Tree 121 Comment
  CAS-BOT-BC76046  Vancouveria hexandra Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta. Comment
  HSC58227  Vancouveria hexandra Walter Overton 1979-8-1 12374 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  CAS-BOT-BC76088  Vancouveria planipetala Greg de Nevers 2001-4-17 12245 Humboldt Humboldt Redwoods State Park. 91 Comment
  HSC24385  Vancouveria planipetala J. O. Sawyer 1970-6-24 2222 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC70723  Vancouveria planipetala Gail Newton 1980-7-14 1517 Humboldt Near Deadman Ridge 1097 Comment
  HSC70501  Veratrum insolitum Gail Newton 1980-7-20 1617 Humboldt Near Bell Swamps 1426 Comment
  HSC21738  Verbena lasiostachys D. E. Anderson 1963-5-25 2499 Humboldt 4 mi. E of Petrolia. Comment
  SEINET1008963  Verbena lasiostachys Alma L. Moldenke, Harold N. Moldenke 1975-1 30232 Humboldt Van Duzen River valley east of Bridgeville, Humboldt County, California. 732 Comment
  RSA12557  Veronica americana Carl B. Wolf 1934-7-2 5882 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  CDA6482  Veronica filiformis E. C. Whitney 1966-2-11 Humboldt 409 11th Street, Eureka. 0 Comment
  HSC21210  Veronica persica N. J. Cole, D. E. Anderson 1965-3-20 8 Humboldt 3 mi. W of Arcata near Lanphere Rd. Comment
  HSC96800  Viburnum tinus Gordon Leppig 2005-3-23 2002 Humboldt McKinleyville, on E side of Azalea Rd. 55 Comment
  UC1197468  Vicia americana var. americana Joseph P. Tracy 1914-7-12 4580 Humboldt near Hookton; Northern Coast Region, Humboldt Bay Region 0 Comment
  RSA138213  Vicia gigantea Volney Rattan 1880-1 s.n. Humboldt Mad River Comment
  RSA755060  Vicia sativa subsp. nigra Robert F. Thorne, Percy C. Everett 1965-8-8 35241 Humboldt N edge of Eureka, E of Hwy. 101 5 Comment
  CAS-BOT-BC263950  Viola adunca L. B. Kildale 1927-7-10 3723 Humboldt Gans Prairie, N Bald Hills Road 609 Comment
  HSC21761  Viola adunca R. D. Modafferi 1965-3-13 15 Humboldt 0.6 mi. N of Trinidad on Trinity St. Approx. 1/2 mi. W of 30 Comment
  UC502937  Viola bakeri Joseph P. Tracy 1932-7-15 10596 Humboldt ridges e of Corral Prairie; Klamath Mountains, Trinity Summit 1828 Comment
  HSC55596  Viola cuneata Overton, Butler 1979-7-23 9407 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  UC1198446  Viola cuneata Joseph P. Tracy 1927-6-12 8214 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1524 Comment
  HSC85895  Viola glabella Barry Silver 1986-4-23 534 Humboldt Bair Rd., 10 mi. NW of junction with Hwy. 299: Pine Ridge Summit Area 997 Comment
  CAS-BOT-BC536492  Viola glabella Henry M. Pollard 1948-7-18 s.n. Humboldt Near Orleans Comment
  HSC96273  Viola glabella J. Breton, A. Livingston 2005-6-15 10 Humboldt NE of Grouse Mtn. 1490 Comment
  UC183756  Viola hallii Joseph P. Tracy 1913-5-4 4046 Humboldt Kneeland Prairie; Northern Coast Ranges 762 Comment
  UCR139069  Viola hallii E. Brower, S. Marubayashi, E. Perry 1997-5-10 054 Humboldt USFS Road 1, at mile marker 8 945 Comment
  SEINET6176915  Viola lobata Thomas Nelson 1971-5-31 456 Humboldt Near the Mad River north of Dinsmore.; 0 Comment
  HSC21827  Viola ocellata J. F. Knezevich 1967-6-1 171 Humboldt 5 mi. E of Willow Creek on Hwy. 299 Comment
  UC35264  Viola ocellata W. C. Blasdale 1896-6-8 Humboldt Grahams Comment
  BLMAR574  Viola praemorsa Jennifer Wheeler 2010-5-12 574 Humboldt Lacks Creek, Faulkner prairie 731 Comment
  UC1761534  Viola praemorsa subsp. praemorsa Milo S. Baker 1923-7-25 119 Humboldt Near camp on South Fork Yager Creek, on hillsides. Smallest exposed place near top. Comment
  CHSC13610  Viola sempervirens Mark Johnson 1974-4-28 29 Humboldt 1 mi w of Lady Bird Johnson Grove, 4 mi ne of Orick. 167 Comment
  HSC23603  Viola sempervirens J. O. Sawyer 1971-6-14 2375 Humboldt Above E fork of Horse Linto Creek 1494 Comment
  UC164805  Viola sempervirens Joseph P. Tracy 1904-4-3 2006 Humboldt Eureka; Northern Coast Region, Eureka 0 Comment
  UC727172  Viola sempervirens A. A. Heller 1924-7-23 13877 Humboldt Trinidad Head Comment
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Sep 29 2006
  UC1198426  Viola sempervirens Joseph P. Tracy 1921-2-27 5416 Humboldt Bear Creek Flat near Pepperwood (along Eel River from South Fork to Scotia); Northern Coast Ranges, Eel River, Bear Creek Flat 60 Comment
  UC1197981  Vitis californica Joseph P. Tracy 1926-9-6 7797 Humboldt Trinity River Valley Northern Coast Ranges (near the South Fork) 182 Comment
  UC668146  Vitis californica Joseph P. Tracy 1933-9-9 13077 Humboldt Garberville South Fork of Eel River 152 Comment
  CAS-BOT-BC198760  Vulpia bromoides Henry M. Pollard 1948-7-22 s.n. Humboldt Perch Creek Canyon near Orleans Comment
  HSC9837  Vulpia bromoides J. W. Johnson 1962-5-9 1347 Humboldt Christenson Farm, Samoa Peninsula. Comment
  UC1607841  Vulpia bromoides H. E. Parks May 1933 4306 Humboldt Trinidad district, Spruce Cove Comment
  CAS-BOT-BC198762  Vulpia bromoides Doris K Niles 1950-6-1 5 Humboldt Island in Eel River, Niles field. Comment
  CAS-BOT-BC184235  Vulpia microstachys var. pauciflora S. K. Harris; J. P. Tracy; H. S. Yates 1936-6-17 3431 Humboldt Northwest slopes of Buck Mountain 822 Comment
  RSA10060  Vulpia myuros var. hirsuta Joseph P. Tracy 1925-5-17 6968 Humboldt Trinity River Valley, near the South Fork. 183 Comment
  UC1145202  Vulpia myuros var. hirsuta Joseph P. Tracy 1936-6-17 14959 Humboldt nw slope Buck Mountain (Burr Valley); Burr Valley 1066 Comment
  HSC104099  Whipplea modesta Monica Rodriguez, William A. Worley 2015-4-11 27 Humboldt Rock Creek Ranch property; along South Fork Rd, 8.2 mi. from 199 Redwood Hwy. 134 Comment
  HSC81925  Whipplea modesta Thomas W. Nelson, Jane P. Nelson 1979-7-3 4954 Humboldt Along road to Joe Losey property at junction of Kneeland and Maple Creek Rds. 610 Comment
  UC70517  Whipplea modesta Mrs. M. H. Manning before Apr. 1901 Humboldt Hoopa Comment
  HSC12851  Woodwardia fimbriata C. E. Fellows 1970-11-28 320 Humboldt H.S.C. Campus, Arcata, E end old Science wing Comment
  HSC44509  Wyethia angustifolia Brad Klipfel 1973-7-1 118 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC98077  Wyethia angustifolia Cara Witte 2007-7-11 485 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1396 Comment
  SBBG60857  Wyethia angustifolia R. Hartwell 1938-8-5 Humboldt Mattole Rd, on the "Hump," near Capetown, above the sea Comment
  HSC93595  Wyethia longicaulis Gordon Leppig 1998-6-1 872 Humboldt Horse Mtn. Buck Flat, Titlow Hill Rd., at Ammon Ridge Rd. 1524 Comment
  HSC56947  Xerophyllum tenax Overton, Butler 1979-7-23 9437 Humboldt Near Horse Mtn., close to the town of Willow Creek 1478 Comment
  HSC74331  Xerophyllum tenax Gail Newton 1980-6-16 147 Humboldt Near Monks Camp 1097 Comment
  SD104877  Zeltnera muehlenbergii Darley F. Howe 1979-6-25 Humboldt Highway 96, 12.3 miles north of Willow Creek. Comment
  HSC40300  Zigadenus micranthus Thomas W. Nelson, Jane P. Nelson 1976-7-1 2901 Humboldt Along ridge N of Bear Creek 1463 Comment
  UC1198216  Zigadenus micranthus var. micranthus Joseph P. Tracy 1947-6-8 17710 Humboldt open flat by old Strong's District School House (5 mi e of town, Carlotta); Carlotta 60 Comment
  UC176186  Zigadenus micranthus var. micranthus Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3629 Humboldt Alton Northern Coast Region, Alton 30 Comment
  UC159987  Zostera marina R. W. Skinner Oct 1910 Humboldt Eureka Comment
  CDA869  Zostera marina F. J. Shaughnessy 1999-6-14 s.n. Humboldt Humboldt Bay. Fields Landing 0.0-+1 . 0 Comment



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