Search Results — 2000 specimen records retrieved (1365 records with coordinates)
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Results for search: County=HUMBOLDT; Source=All;   

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(For large data reqests, please contact Jason Alexander, jason_alexander@berkeley.edu.)

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

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? Specimen ID Determination * Collector Collection Date Collection Number County Locality Elevation in meters Feedback
  CAS-BOT-BC77928  Abies G. A. Coleman 1901-7-26 s.n. Humboldt Near Acorn Comment
  CAS-BOT-BC78056  Abies grandis Alice Eastwood 1923-8-14 12324 Humboldt Samoa Comment
  CDA468  Abies grandis George Loughner 2000-10-6 PDR# 023915 Humboldt Ridge, E of Blue Lake. 0 Comment
  RSA33416  Abies grandis Doris K. Kildale 1941-7-25 s.n. Humboldt Arcata Comment
  RSA168959  Abies procera G. L. Anderson 1962-8-21 5 Humboldt Six Rivers National Forest; Horse Trail Ridge, SW slope. 1829 Comment
  CHSC32897  Abronia latifolia J. P. Smith; Advanced Taxonomy Class 1971-10-6 4946 Humboldt Dunes at the end of Murray Road in McKinleyville. Comment
  SBBG69879  Abronia latifolia R. Hartwell 1938-8-4 Humboldt near Capetown Comment
  HSC16133  Abronia latifolia J. W. Johnson 1961-8-17 1050 Humboldt Arcata, ridge 8, Lanphere Farm, Samoa Peninsula Comment
  RSA0025094  Abronia latifolia Robert F. Thorne, P. C. Everett 1965-8-5 35170 Humboldt Samoa Dunes. 3 Comment
  SEINET946033  Abronia latifolia Kai Neander, Gordon Leppig, Sylvia Leppig 1998-1 746 Humboldt Dry Lagoon State Park. Comment
  CAS-BOT-BC233751  Abronia umbellata Doris K. Kildale 1926-6-18 2401 Humboldt Gold Bluffs Beach Comment
  SEINET8215832  Abronia umbellata H. E. Parks 1941-1 242112 Humboldt Little River. Comment
  HSC2785  Acer circinatum D. E. Anderson 1965-5-8 3627 Humboldt 0.6 mi. W of bridge over N Fork of the Mad River along Hwy. 299 Comment
  HSC58129  Acer glabrum var. torreyi Gilbert Muth 1979-8-1 12124 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC102172  Achillea millefolium M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1084 Humboldt Patterson Meadows 1566 Comment
  HSC4576  Achillea millefolium S. J. Hawks 1965-5-14 63 Humboldt Clam Beach Comment
  CAS-BOT-BC28580  Achillea millefolium Doris K. Kildale 1926-8-8 2475 Humboldt Dyerville Bridge, on river bar 45 Comment
  UC1222922  Achillea millefolium Joseph P. Tracy 1950-5-30 18712 Humboldt at Willow Creek; Trinity River Valley 152 Comment
  HSC3337  Achlys triphylla J. F. Knezevich 1968-5-21 445 Humboldt 20 mi. E of Arcata on Hwy. 299 at Lord Ellis Summit Comment
  HSC58217  Achlys triphylla Walter Overton 1979-8-1 12355 Humboldt Near Mill Creek, Middle Fork, close to the town of Hoopa. 1341 Comment
  HSC61059  Achlys triphylla Jimerson, J. Pageau 1979-6-12 534 Humboldt Near Hopkins Butte, close to the town of Orleans 1036 Comment
  SEINET8072990  Achlys triphylla W. Roderick 1967-7-22 s.n. Humboldt Ca 5 miles E of Carlotta. 46 Comment
  JEPS47754  Achlys triphylla subsp. triphylla Lincoln Constance 1934-6-1 773 Humboldt Bull Cr. rd. between Dyerville Bridge and Bull Creek flat grove (mouth of Bull Cr.); S. Fork Eel R., Bull Creek Region 45 Comment
  UC161537  Achlys triphylla subsp. triphylla Joseph P. Tracy 1911-7-7 3423 Humboldt near summit Brannan Mt. (ridge n. of Willow Creek, between Willow and Campbell Creeks) 1219 Comment
  UC1541542  Achnatherum lettermanii Harold E. Parks July 1934 4926 Humboldt Grouse Mountain 1371 Comment
  UC526760  Achnatherum occidentale subsp. californicum Joseph P. Tracy 1932-7-12 10446 Humboldt Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  SEINET2429225  Achyrachaena mollis Joseph P. Tracy 1932-6-26 10271 Humboldt Fort Baker Ranch 760 Comment
  BLMAR154  Acmispon parviflorus Donald Hazlett 1994-6-7 154 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC56210  Aconitum columbianum subsp. viviparum G. L. Clifton, Griswold 1979-8-2 12215 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC55084  Aconogonon davisiae G. L. Clifton, Griswold 1979-7-31 11748 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  CAS-BOT-BC418767  Aconogonon phytolaccifolium Doris K. Kildale 1925-9-1 1368 Humboldt Eureka Comment
  JEPS60374  Actaea rubra W. L. Jepson 1902-7-16 2055 Humboldt Trinity Summit 2133 Comment
  SD73189  Adenocaulon bicolor Darley F. Howe 1969-6-4 Humboldt 14.6 miles east of Alton on #36 89 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
  OBI17136  Adenocaulon bicolor Joseph T. Gregory 1933-8-6 525 Humboldt Woods near Gann's Prairie Rd from Orick to Orleans Comment
  UC582522  Adenocaulon bicolor Joseph P. Tracy 1933-8-6 12940 Humboldt in shade of trees French Camp Ridge 1066 Comment
  JEPS35154  Adiantum aleuticum Joseph P. Tracy 1925-11-25 7324 Humboldt near s fork Trinity River Valley; Northern Coast Ranges 182 Comment
  HSC100384  Adiantum emarginatum Carl C. Marshall Jun 1887 429 Humboldt Jewett Creek. Comment
  CAS-BOT-BC65624  Adiantum jordanii Joseph P. Tracy 1895-9-1 6868 Humboldt near Pepperwood 30 Comment
  HSC54499  Agastache urticifolia G. L. Clifton, Griswold 1979-7-26 9358 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  HSC57452  Ageratina occidentalis G. L. Clifton, Griswold 1979-7-26 10272 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 1935 Comment
  UC582752  Agoseris grandiflora var. grandiflora Joseph P. Tracy 1928-7-25 8488 Humboldt Big Lagoon Big Lagoon 60 Comment
  UC1199486  Agoseris heterophylla var. heterophylla Joseph P. Tracy 1938-6-9 15888 Humboldt top of ridge 3 mi w of Harris 914 Comment
  UC1222766  Agoseris retrorsa Joseph P. Tracy 1950-7-1 18952 Humboldt Grouse Mountain 1219 Comment
  UC34646  Agoseris retrorsa Chesnut and Drew 1888-7-21 Humboldt S. Fork Mt. Comment
  UC187295  Agrostis alba J. P. Tracy 1901-7-29 1227 Humboldt moist hillside immediate vicinity of Eureka 0 Comment
  RSA22705  Agrostis densiflora H. E. Parks 1935-06 5607 Humboldt Spruce Cove, Trinidad. Comment
  CAS-BOT-BC127286  Agrostis exarata W. R. Dudley 1899-1-1 s.n. Humboldt Arcata. Comment
  CAS-BOT-BC127292  Agrostis exarata Joseph P. Tracy 1935-5-25 13857 1/2 Humboldt Fort Seward. 106 Comment
  CAS-BOT-BC127293  Agrostis exarata H. E. Parks 1935-6-1 5607 Humboldt Spruce Cove, Trinidad. Comment
  UC1103380  Agrostis exarata Joseph P. Tracy 1935-7-27 14282 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC34113  Agrostis exarata Joseph Burtt Davy and Walter C. Blasdale 1899-6-13 5493 Humboldt near Camp Grant Comment
  UC526892  Agrostis exarata Joseph P. Tracy 1932-7-14 10550 Humboldt Wet Meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  HSC37235  Agrostis hallii Lon Hall 1975-6-19 400 Humboldt About 2 mi. N of Shelter Cove Rd. on Horse Mtn. Rd. 549 Comment
  UCD52675  Agrostis hallii P. B. Kennedy 1923-6-14 305 Humboldt Stoddard store, near Garberville. Comment
  UCD52685  Agrostis hallii H. S. Yates 1936-6-18 5728 Humboldt Near mouth of Litter River. 4 Comment
  CAS-BOT-BC139124  Agrostis oregonensis Joseph P. Tracy 1924-7-4 6711 Humboldt Northern Coast Ranges. Snow Camp. 1371 Comment
  UC526879  Agrostis oregonensis Joseph P. Tracy 1925-7-5 7173 Humboldt in cold wet meadow near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  SACT000138  Agrostis palustris S. Smith, Malcolm Nobs 1949-8-3 Humboldt Borders of irrigation ditch Comment
  RSA10066  Agrostis stolonifera Joseph P. Tracy 1932-8-21 10363 Humboldt Three Cabins, on lower western foothills of Chaparral Mountain; North Coast Range 457 Comment
  RSA126092  Agrostis stolonifera Joseph P. Tracy 1902-7-4 1758 Humboldt [Unspecified] Comment
  UC526889  Agrostis stolonifera Joseph P. Tracy 1927-7-16 8253 Humboldt Elk River, mouth Northern Coast Region 6 Comment
  UCD53503  Agrostis stolonifera Malcolm A. Nobs; S. Galen Smith 1949-8-3 1168 Humboldt 1 mile south of Fields Landing, Eel River Valley. Comment
  HSC58792  Agrostis thurberiana Overton, Butler 1979-7-31 11457 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  BLMAR146  Aira caryophyllea Donald Hazlett 1994-6-7 146 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  HSC8861  Aira caryophyllea unknown May 1933 4003 Humboldt Spruce Cove, Trinidad Comment
  RSA256715  Aira caryophyllea L. Hall 1975-5-24 379 Humboldt Samoa Dunes; coastal strand. Dunes off Samoa Blvd. across from the boat landing Comment
  CAS-BOT-BC138329  Aira caryophyllea var. caryophyllea Doris K. Kildale 1925-6-14 680 Humboldt Head of South Yager Creek. 914 Comment
  CAS-BOT-BC138332  Aira caryophyllea var. caryophyllea Doris K. Kildale 1927-6-25 3560 Humboldt Fearren's Ranch between Thorn and Shelter Cove. Comment
  CAS-BOT-BC138333  Aira caryophyllea var. caryophyllea Henry M. Pollard 1948-7-23 s.n. Humboldt Reece Point near Orleans. Comment
  HSC104039  Aira elegans C. Reynolds 2015-3-21 25 Humboldt Willow Creek; At bend in Trinity River, on the east end of Kimtu beach, near Camp Kimtu 135 Comment
  SJSU16017  Aira praecox John Rawlings 2016-5-19 1801 Humboldt Gold Bluffs Beach 5 Comment
  CHSC32836  Allium amplectens Lora L. Anderson 1981-4-25 16 Humboldt Ca. 1.5 mi ne Redwood Creek, 4.5 mi n of 299w 18 mi ne of Arcata. 228 Comment
  UC1198194  Allium amplectens Joseph P. Tracy 1930-6-21 8777 Humboldt Larrabee Valley 731 Comment
  HSC65901  Allium bolanderi var. bolanderi M. A. Baker 1980-6-26 2444 Humboldt Near Sims Creek 610 Comment
  HSC78654  Allium campanulatum D. K. Imper 1982-7-2 1490 Humboldt Near Connely Creek, N Fork 1493 Comment
  HSC71825  Allium hoffmanii Thomas W. Nelson, Jane P. Nelson 1980-6-27 5956 Humboldt Saddle between Mt. Lassic and peak to E 1677 Comment
  SEINET8191725  Allium triquetrum R. R. Halse 2013-3-28 8768 Humboldt Along US Hwy 101, ca 1.0 mile W of Orick. 4 Comment
  CHSC61689  Allium unifolium Steven Webster 1986-4-12 10 Humboldt Ca. 3 mi s of Prairie creek State Park along Highway 101. 91 Comment
  CAS-BOT-BC453427  Allotropa virgata Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  UC249711  Alnus rhombifolia Joseph P. Tracy 1922-1-15 5983 Humboldt 4 mi above Carlotta; Northern Coast Ranges, Van Duzen River 30 Comment
  SEINET201016  Alnus viridis subsp. sinuata J. P. Tracy 1947-8-24 17913 Humboldt Trinity Summit near Box Camp 1524 Comment
  UC1145046  Alopecurus aequalis Joseph P. Tracy 1950-7-6 19019 Humboldt 3 mi. s. Burr Valley (Buck Mt., high meadow w. side,); Buck Mt. 1158 Comment
  CAS-BOT-BC138016  Alopecurus geniculatus Joseph P. Tracy 1933-7-20 12802 Humboldt North Coast Ranges. Arcata Bottom. 15 Comment
  UC526745  Alopecurus geniculatus Joseph P. Tracy 1926-6-12 7589 Humboldt Prairie Creek Northern Coast Ranges, Prairie Creek 152 Comment
  JEPS79807  Alopecurus saccatus Joseph P. Tracy 1942-6-2 17096 Humboldt Alton 30 Comment
  UC677555  Alopecurus saccatus A. A. Beetle with Stebbins and Tracy May 1942 3464 Humboldt 1 mi. e. Alton Comment
  UC1222884  Ambrosia artemisiifolia Joseph P. Tracy 1950-9-22 19379 Humboldt 3 mi sw Orleans Comment
  HSC5662  Ambrosia chamissonis David Adams Oct 1960 Humboldt N bank of the Mad River near mouth 0 Comment
  JEPS40954  Ambrosia chamissonis Joseph P. Tracy 1934-10-21 13688 Humboldt along coast in front of s end of Stone Lagoon; Dry Lagoon, Stone Lagoon 3 Comment
  UC582626  Ambrosia chamissonis Joseph P. Tracy 1937-9-26 15687 Humboldt sand dunes, near Samoa; Northern Coast Region, Humboldt Bay 6 Comment
  UC665538  Ambrosia chamissonis H. E. Parks 1941-9-1 24214 Humboldt sandy beaches at mouth Little River Comment
  CAS-BOT-BC13699  Ambrosia chamissonis Kenneth Clark 1981-5-24 1396 Humboldt Shelter Cove, 100 yards west of Dead Man's Gulch. Point Delgada quad. 3 Comment
  HSC99379  Amelanchier alnifolia var. semiintegrifolia K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 28 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
  SDSU19194  Amelanchier alnifolia var. semiintegrifolia Michael G. Simpson, Michael Mesler and Michael Mayer 2008-5-27 3011 Humboldt Six Rivers National Forest. From Hwy 299, take Titlow Hill Road (at Berry Summit) ca. 7.5 miles south, west 0.2 miles to Cold Spring. Ca. 0.3 mile south-southeast of Cold Spring. Ca. 3.3 aerial miles south-southeast of Horse Mtn. Radio Tower. 1426 Comment
  CAS-BOT-BC142894  Amelanchier alnifolia var. semiintegrifolia L. R. Abrams 1917-6-17 7209 Humboldt Hoopa to Briar's Resort on road to Korbel Comment
  CAS-BOT-BC143015  Amelanchier utahensis Joseph P. Tracy 1946-7-13 17618 Humboldt Carlotta, open flat by old Strong's District School House, 5 miles east of town. 60 Comment
  UC1222322  Amelanchier utahensis Joseph P. Tracy 1951-5-6 19395 Humboldt 5 mi e Carlotta (open flat by old Strong's District School House) 60 Comment
  SACT000320  Ammophila arenaria D. Shillingbury 1963-5-11 Humboldt Coastal strand Comment
  SEINET12280472  Amsinckia intermedia J. P. Tracy 1948-1 18023 Humboldt at the big rock, 2 mi W of Bridgeville Comment
  UC1239646  Amsinckia lunaris Joseph P. Tracy 1930-5-25 8724 Humboldt near Bridgeville; Northern Coast Ranges 152 Comment
  UC545822  Amsinckia menziesii var. menziesii H. E. Parks March, 1933 4282 Humboldt Trinidad Comment
  UC525581  Amsinckia menziesii var. menziesii Joseph P. Tracy 1933-5-14 12175 Humboldt Trinity River Vallley at Willow Creek Trinity River Vallley; Northern Coast Ranges 152 Comment
  HSC17837  Anagallis arvensis A. E. Inman 1962-5-25 Humboldt Mad River, Lindsey Creek Jct., 200 yards W of Lindsey Creek Comment
  HSC17824  Anagallis arvensis D. E. Anderson 1961-8-25 1745 Humboldt 1.5 mi. S of Trinidad Comment
  HSC49064  Anaphalis margaritacea Patricia Shesgreen 1978-8-2 125 Humboldt Arcata Community Forest, Arcata; 200 yds. N of field house on top of hill overlooking baseball field Comment
  CAS-BOT-BC45140  Anaphalis margaritacea M. S. Taylor 1975-4-12 466 Humboldt Ca. 200 yards W of Hwy 101, by RR tracks, Orick Comment
  SEINET11855265  Anaphalis margaritacea J. P. Tracy 1950-1 19363 Humboldt On foothills of Cape Ridge, .5 mi S of town, along coast road, 1 mile inland from Cape Mendocino 61 Comment
  HSC48847  Anemone deltoidea Brad Klipfel 1973-7-15 206 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC13935  Anemone deltoidea W. C. Blasdale 1896-6-1 Humboldt in redwoods Freshwater Comment
  UC8883  Anemone deltoidea J. Burtt Davy 1899-6-13 5499 Humboldt Camp Grant; North Coast Ranges Comment
  HSC45033  Anemone deltoidea Maralyn O'Meara 1973-6-12 206 Humboldt Above Clear Lake Comment
  RSA304843  Anemone deltoidea James R. Shevock 1971-5-30 681 Humboldt Biants Ave, Humboldt St. Park. 152 Comment
Read comments
Oct 20 2009
  CHSC31275  Anemone oregana Mark Stopher 1980-5-20 71 Humboldt Along the Van Duzen River near Rte 36. Comment
  JEPS12341  Angelica genuflexa Joseph P. Tracy 1938-9-25 16165 Humboldt near Murphy Meadows (Bald Mountain); Bald Mountain 944 Comment
  JEPS14204  Angelica genuflexa Joseph P. Tracy 1937-9-30 15690 Humboldt Dow's Prairie 60 Comment
  UC642306  Angelica hendersonii Joseph P. Tracy 1938-8-28 16134 Humboldt Trinidad 3 Comment
  UCD127229  Angelica hendersonii R. Tofsrud 1948-7-26 s.n. Humboldt along Highway 101 near Big Lagoon. Comment
  RSA246846  Angelica lucida R. F. Thorne, P. Everett 1965-8-9 35337 Humboldt Along Hwy 101 about 3 miles N of Eureka; 2 Comment
  UC642300  Angelica tomentosa Joseph P. Tracy 1939-8-16 16409 Humboldt Horse Mountain 1432 Comment
  UC642244  Angelica tomentosa Joseph P. Tracy 1938-9-5 16145 Humboldt Northern Coast Ranges, Willow Creek Canyon Willow Creek Canyon Willow Creek Canyon; Northern Coast Ranges, Willow Creek Canyon 457 Comment
  CAS-BOT-BC271495  Anisocarpus madioides Harley P. Chandler 1901-6-1 1313 Humboldt Hupa Indian Reservation 152 Comment
  RSA167202  Antennaria suffrutescens Joseph P. Tracy 1947-7-9 17864 Humboldt Horse Mountain 1432 Comment
  UCD56156  Anthoxanthum aristatum K. L. Chambers 1984-6-16 5150 Humboldt Bald Hills Road, 7.0 miles past Lady Bird Johnson Grove, Redwood National Park, east of Orick. Comment
  SEINET271527  Anthoxanthum occidentale Bassett Maguire, Ruth Maguire; CB Maguire 1934-6-8 15071 Humboldt Bolling Grove State Park ; unspecified Comment
  HSC102648  Anthoxanthum odoratum J. P. Smith 2009-5-31 12609 Humboldt Bald Hills Road. 791 Comment
  HSC24616  Anthoxanthum odoratum R. D. Modafferi 1965-4-8 34 Humboldt 1.3 mi. south of Trinidad on old Highway 101. 305 Comment
  HSC8950  Anthoxanthum odoratum D. B. Bader 1963-4-1 24 Humboldt Second of the Clam Beach lagoons, W of Hwy. 101 Comment
  RSA313192  Anthoxanthum odoratum Malcolm A. Nobs, S. Galen Smith 1949-8-3 1193 Humboldt Marsh and bog land at the southern outskirts of Eureka. Comment
  SEINET3918444  Anthoxanthum odoratum H. E. Parks, S. T. Parks 1952-1 24444 Humboldt Spruce Cove, Trinidad.; 0 61 Comment
  HSC104090  Anthoxanthum odoratum M. F. Norman 2015-4-11 5 Humboldt Arcata, Ma-le'l Dunes Comment
  JEPS5352  Antirrhinum vexillocalyculatum subsp. breweri Joseph P. Tracy 1935-10-13 14756 Humboldt Willow Creek; Trinity River Valley 152 Comment
  CAS-BOT-BC447667  Aphanes arvensis J. P. Tracy 1901-5-5 1072 Humboldt Immediate Vicinity of Eureka 152 Comment
  UC1198738  Aphanes occidentalis J. P. Tracy 1905-5-21 2184 Humboldt immediate vicinity Eureka 0 Comment
  CAS-BOT-BC392159  Aquilegia formosa J. O. Sawyer; R. J. Cole 1977-7-3 3006 Humboldt Environs of Mud Spring. Big Hill Road (F.S. 8N01) 1524 Comment
  SEINET12104678  Aquilegia formosa E. A. York 1990-1-10 2663 Humboldt USGS Redwood Field Station, Arcata Comment
  UCSB1939  Aquilegia formosa Phillips, Priscilla 1958-6-7 Humboldt Just off Highway 101 on road to Big Lagoon Park Comment
  HSC99008  Aquilegia formosa var. formosa Cara Witte 2008-7-16 907 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  HSC57019  Aquilegia formosa var. truncata Overton, Butler 1979-7-24 9631 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC57633  Arabis breweri var. breweri G. L. Clifton, Griswold 1979-7-25 10787 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1814 Comment
  HSC6529  Arabis divaricarpa J. P. Tracy 1932-7-12 10391 Humboldt Trinity Summit 1524 Comment
  HSC6523  Arabis glabra D. E. Anderson 1962-5-10 2206 Humboldt Lanphere Ranch. Comment
  HSC98804  Arabis subpinnatifida Cara Witte 2008-6-2 672 Humboldt Along National Forest 1 on Kinsey Ridge. Approximately 2 miles southeast of intersection with 5N04. Near cattleguard. 1373 Comment
  RSA568502  Aralia californica Thekla Mohr 1919-07 s.n. Humboldt Eel River. Comment
  UC1408964  Aralia californica Robert F. Thorne and P. Everett 1965-8-5 35137 Humboldt below summit Mt. Chamisal 579 Comment
  CAS-BOT-BC167257  Aralia californica Paul F. Covel 1939-8-7 1638 Humboldt Mather Memorial Grove Comment
  UC162626  Aralia californica Joseph P. Tracy 1911-7-5 3320 Humboldt near its mouth Willow Creek (tributary of Trinity R.); Northern Coast Ranges 304 Comment
  CAS-BOT-BC128700  Arbutus menziesii Doris K. Kildale 1925-8-13 1114 Humboldt Willow Creek Flat - Trinity River Valley 152 Comment
  JEPS66576  Arbutus menziesii W. L. Jepson 1902-7-10 2004 Humboldt South Fork Trinity River, Martin's Ranch, (Expedition) from Ukiah to the Hupa Indian Reservation South Fork Trinity River; , Martin's Ranch 396 Comment
  UC672853  Arceuthobium campylopodum Joseph P. Tracy Jul 16 1930-Jul 19 1930 8950 Humboldt along summit near Blake lookout Northern Coast Ranges, South Fork Mtn Comment
  UC585952  Arctostaphylos Joseph P. Tracy 1927-5-15 8059 Humboldt on rd w from Hoopa Valley; Northern Coast Ranges, Hoopa Mountain 914 Comment
  CAS-BOT-BC23741  Arctostaphylos columbiana C. Hart Merriam 1920-8-31 s.n. Humboldt Coast Mts. between Shelter Cove and Kenny Comment
  CAS-BOT-BC23777  Arctostaphylos columbiana J. P. Tracy 1909-3-7 2944 Humboldt Immediate vicinity of Eureka 152 Comment
  HSC35750  Arctostaphylos columbiana Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-15 1994 Humboldt French Camp, Bald Hills. Comment
  JEPS38616  Arctostaphylos columbiana Lincoln Constance 1934-5-24 638 Humboldt bordering on e side lower Look Prairie; South Fork Eel River, Bull Creek Region 121 Comment
  JEPS38976  Arctostaphylos columbiana Joseph P. Tracy 1934-2-22 13134 Humboldt vicinity of Trinidad Northern Coast Region 60 Comment
  RSA622690  Arctostaphylos columbiana Jon E. Keeley, John Sawyer 1996-10-12 27678 Humboldt Along Highway 101 at edge of cutover redwood forest, 6 km south of Drury Scenic Parkway and Prairie Creek Redwoods State Park, north of Eureka. 320 Comment
  SBBG58410  Arctostaphylos columbiana H. E. Parks -Dec-1931 4950 Humboldt Hobson's, Trinidad 60 Comment
  UC21817  Arctostaphylos columbiana J. Burtt Davy 1899-6-12 5459 Humboldt near Fruitland; North Coast Ranges 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
  UCD50668  Arctostaphylos columbiana Linda M. Barker 1976-2-22 1319 Humboldt Coastal forest and dunes 3 miles west of Arcata. Comment
  SEINET11998372  Arctostaphylos columbiana W. Knight, Knight, I. 1989-1 6476 Humboldt Patrick's Point State Park 24 Comment
  UC1120179  Arctostaphylos glandulosa subsp. glandulosa A. E. Wieslander 1931-5-19 200 Humboldt near Orleans; Klamath Forest, Hoopa Quadrangle Comment
  RSA632806  Arctostaphylos knightii Jon E. Keeley 1996-10-13 27793 Humboldt Bald Hills Road, eastern end of Redwood National Park, 20-23 km west of Highway 96, north of Eureka. 600 Comment
  CAS-BOT-BC24475  Arctostaphylos manzanita Walter Knight; Irja Knight 1988-9-5 6362 Humboldt Bald Hill Road about 21.5 mi. from U.S. 101 en route to Hoopa. 929 Comment
  CHSC110739  Arctostaphylos manzanita subsp. glaucescens Dean Wm. Taylor 2011-5-4 21119 Humboldt Larabee Valley, along Highway 36 about 1 mile east of the eastern end of the valley at the bridge for the Little Van Duzen River. 701 Comment
  JEPS38928  Arctostaphylos manzanita subsp. manzanita Joseph P. Tracy 1937-4-3 15246 Humboldt Willow Creek Trinity River Valley 152 Comment
  HSC59028  Arctostaphylos nevadensis M. A. Baker 1979-6-7 794 Humboldt Telescope Peak 1250 Comment
  HSC71585  Arctostaphylos nevadensis Gail Newton 1980-6-16 186 Humboldt Near Onion Mtn. 1280 Comment
  UC32672  Arctostaphylos nevadensis Chesnut and Drew 1888-7-21 Humboldt e slope S. Fork Mt. Comment
  CAS-BOT-BC40061  Arctostaphylos nevadensis subsp. knightii Joseph P. Tracy 1935-6-23 13991 Humboldt French Camp Ridge 1066 Comment
  CAS-BOT-BC46627  Arctostaphylos patula L. B. Kildale 1930-8-10 10533 Humboldt Snow Camp. Head of Redood Creek. Comment
  HSC74562  Arctostaphylos patula M. A. Baker 1980-5-17 1270 Humboldt Near Le Perron Peak 1066 Comment
  UC1198667  Arctostaphylos patula Joseph P. Tracy 1942-9-6 17313 Humboldt along summit near Blake lookout; Northern Coast Ranges, South Fork Mountain 1706 Comment
  UC600967  Arctostaphylos patula Joseph P. Tracy 1937-7-29 15600 Humboldt South Fork Mt. 1676 Comment
  UC1073330  Arctostaphylos uva-ursi George B. Rossbach 1955-6-10 380 Humboldt sandy point off Eureka; Fairhaven Comment
  UC1225930  Arctostaphylos uva-ursi Joseph P. Tracy 1945-5-10 17506 Humboldt Eureka 45 Comment
  UCD52032  Arctostaphylos uva-ursi Joseph P. Tracy 1940-10-3 16740 Humboldt Near Samoa, on Humboldt Bay. Comment
  UC1103321  Aristida oligantha Joseph P. Tracy 1921-9-4 5951 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC526766  Aristida oligantha Joseph P. Tracy 1933-8-27 13000 Humboldt Robertson's Ranch Vicinity of Garberville (hillsides in sheep range) 304 Comment
  UC1716064  Armeria maritima subsp. californica M. S. Taylor 1990-8-22 6083 Humboldt Samoa Recreation Area, Samoa Peninsula, Staging Area Eureka Comment
  HSC47944  Arnica cernua Brad Klipfel 1974-5-27 436 Humboldt Horse Mtn. Comment
  UC129315  Arnica cernua Joseph Burtt Davy and Walter C. Blasdale 1899-6-19 5645 Humboldt Hoopa Mt. Comment
  UC275462  Arnica cernua Joseph P. Tracy 1925-6-7 7057 Humboldt near Ruby Creek; Northern Coast Ranges, Willow Creek Canyon 609 Comment
Read comments
Feb 27 2007
  SEINET11837502  Arnica cordifolia H. P. Chandler 1901-1 1400 Humboldt Klamath River 244 Comment
  UC581754  Arnica discoidea Joseph P. Tracy 1935-7-23 14154 Humboldt Lower end of Brett Hole Trinity Summit 1584 Comment
  JEPS20978  Arnica latifolia Joseph P. Tracy 1932-7-20 10736 Humboldt near Corral Prairie; Trinity Summit 1524 Comment
  UC129438  Arnica latifolia Joseph Burtt Davy and Walter C. Blasdale Jun 21 1899-Jun 23 1899 5754 Humboldt Trinity Summit Comment
  UC212866  Arrhenatherum elatius Joseph P. Tracy 1919-8-28 5184 Humboldt Northern Coast Ranges, at Eureka Eureka; Northern Coast Ranges, Eureka 0 Comment
  CAS-BOT-BC90871  Artemisia pycnocephala Lester Rowntree 1937-8-15 s.n. Humboldt Little River Comment
  CHSC55838  Artemisia pycnocephala L. P. Janeway 1987-7-31 2540 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of the Eureka City Airport. 3 Comment
  SEINET8734625 Image available Artemisia pycnocephala H. E. Parks, S. T. Parks 1952-1 24495 Humboldt Samoa Comment
  UC665565  Artemisia pycnocephala H. E. Parks 1941-8-1 24186 Humboldt Little River State Park Comment
  POM51270  Artemisia suksdorfii Joseph P. Tracy 1918-7-1 4973 Humboldt Cape Mendocino. Southwestern slopes, fronting the ocean, three miles south of point of the cape 3 Comment
  HSC55680  Aruncus dioicus var. acuminatus Overton, Butler 1979-7-26 9933 Humboldt Near Willow Creek, E Fork, close to the town of Willow Creek. 1326 Comment
  CAS-BOT-BC453342  Aruncus dioicus var. vulgaris Doris K. Kildale 1928-6-24 7071 Humboldt Redwood Creek at Berry's 274 Comment
  CAS-BOT-BC453343  Aruncus dioicus var. vulgaris Volney Rattan 1878-6-16 s.n. Humboldt Mad River Comment
  HSC58082  Asarum caudatum G. L. Clifton, Griswold 1979-8-1 11986 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UC1173689  Asclepias fascicularis Joseph P. Tracy 1939-7-16 16349 Humboldt Garberville 152 Comment
  POM127914  Asclepias speciosa P. E. Goddard 1906-06 688 Humboldt Blocksburg Comment
  CAS-BOT-BC65944  Aspidotis densa L. R. Abrams 1918-6-15 7123 Humboldt Brannan Mt near Willow Creek 1371 Comment
  HSC44044  Aspidotis densa Thomas W. Nelson, Jane Nelson 1977-7-4 3599 Humboldt Along old trail N of Alder Spring 1555 Comment
  NY5297  Astragalus agnicidus H. Tosten 1931-6-7 s.n. Humboldt Near Bear Buttes, 4 mi S of Miranda. Local on Tosten and Pierce Ranch. Comment
  UC502992 Image available Astragalus agnicidus Henry Tosten 1931-6-7 Humboldt 4 mi s Miranda (near Bear Buttes, on Tosten and Pierce Ranch); ; near Bear Buttes, Humboldt Co. 762 Comment
  RSA475237  Astragalus rattanii var. rattanii Aaron Liston, Sara Meury 1988-5-29 746 -1 Humboldt Grizzly Creek Redwoods State Park; banks of Van Duzen River. 150 Comment
  UC175638  Astragalus rattanii var. rattanii Joseph P. Tracy 1913-6-20 4241 Humboldt nw slope Buck Mountain (lower foothills); Northern Coast Ranges, lower foothills Buck Mountain 762 Comment
  HSC103507  Astragalus umbraticus Thomas W. Nelson, Jane Nelson 1987-6-11 8526 Humboldt Along Forest Service Rd. 13N01, 9 mi. from junction with State Route 96 762 Comment
  HSC76274  Asyneuma prenanthoides Denis Kearns 1981-7-23 370 Humboldt Near Whiteys Peak 732 Comment
  HSC98869  Athyrium filix-femina var. cyclosorum Cara Witte 2008-8-5 995 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles E of intersection with National Forest 1. 1346 Comment
  JEPS35139  Athyrium filix-femina var. cyclosorum W. L. Jepson 1932-8-8 16529 Humboldt hill above Weott Comment
  UC902198  Athyrium filix-femina var. cyclosorum Joseph P. Tracy 1949-8-26 18512 Humboldt ne of Hawkins Bar Happy Camp Mt; Trinity Summit Range 1280 Comment
  UC922657  Athyrium filix-femina var. cyclosorum Annie M. Alexander and Louise Kellogg 1948-9-3 5573 Humboldt near Hoopa Reservation (above Trinity River Rd) Comment
  JEPS53225  Athysanus pusillus W. L. Jepson 1902-6-20 1901 Humboldt Fort Seward Ranch Ridge, (=Mail Ridge), expedition from Ukiah to the Hupa Indian Reservation Fort Seward Ranch Ridge 1219 Comment
  HSC9004  Avena barbata R. Spellenberg 1965-6-14 1124 Humboldt Along Barry Rd., 1 mi. from junction with Bridgeville Rd., Kneeland Prairie Comment
  HSC9031  Avena barbata Francis Winter 1960-4-24 Humboldt Redwood Creek Ranch 381 Comment
  HSC35033  Balsamorhiza deltoidea Thomas W. Nelson, James Nelson 1975-5-24 1850 Humboldt McKeown Ranch, N of Dinsmore. Comment
  UC1198289  Barbarea orthoceras Joseph P. Tracy 1932-7-16 10642 Humboldt along creek in McKay Prairie 1524 Comment
  UC275273  Barbarea orthoceras Joseph P. Tracy 1923-6-17 6272 Humboldt Big Lagoon 6 Comment
  CAS-BOT-BC145787  Beckmannia syzigachne Joseph P. Tracy 1928-6-24 8472 Humboldt Valley of South Yager Creek. 762 Comment
  CDA6267  Bellardia trixago T. R. Haig 1960-6-15 4575 Humboldt 8 miles north of Trinidad. 0 Comment
  HSC34654  Bellis perennis A. M. Montalvo 1975-4-10 206 Humboldt Vacant lot bordering HSU campus between Union St. and A St. 15 Comment
  UC774938  Berberis aquifolium var. aquifolium Carl B. Wolf 1937-8-13 9233 Humboldt 8 mi e Hoopa Valley (on new road towards Trinity summit) 1219 Comment
  HSC48473  Berberis aquifolium var. repens J. P. Smith, J. O. Sawyer, Jane Cole 1978-5-21 9934 Humboldt Six Rivers Natl. Forest, along Ishi Pishi Rd., 1.5 mi. from the Ishi Pishi Bridge over the Klamath River 305 Comment
  JEPS47776  Berberis nervosa Milo S. Baker 1923-7-31 187 Humboldt Lawrence Creek Comment
  HSC70384  Berberis pinnata M. A. Baker 1980-6-7 1801 Humboldt Near Brush Mtn. 1128 Comment
  HSC984  Blechnum spicant Gene S. Van Horn 1962-1-5 5 Humboldt Arcata, Near mouth of W Creek entering H.S.C. reservoir 61 Comment
  SEINET11716007  Blechnum spicant D. E. Boufford 1973-1 11067 Humboldt Eureka, Sequoia Park Comment
  CAS-BOT-BC15801  Boechera acutina Joseph Prince Tracy 1932-7-11 10396 Humboldt Klamath Mountains. Trinity Summit. At Corral Prairie. 1524 Comment
  UC1222706  Boechera pauciflora Joseph P. Tracy 1950-8-8 19293 Humboldt head of Croghan Hole Trinity Summit, Croghan Hole Comment
  POM256471  Boisduvalia glabella Joseph P. Tracy 1938-7-5 16010 Humboldt Carlotta, open flat by old Strong s District School House, 5 miles east of town. 46 Comment
  UC572212  Bolboschoenus maritimus H. S. Yates 1936-6-16 5673 Humboldt 1 mi ne Samoa; Eureka Quad., ne of Samoa Comment
  SEINET5766918  Boschniakia strobilacea C. Young 1967-5-15 s.n. Humboldt Orleans Comment
  HSC12718  Botrychium multifidum C. E. Fellows 1970-10-7 373 Humboldt McKinleyville, 1/8 mi. W of the end of Murray Rd. Comment
  CAS-BOT-BC420269  Boykinia occidentalis Harley P. Chandler 1901-6-1 1501 Humboldt Klamath River 426 Comment
  SD51254  Boykinia occidentalis Darley F. Howe 1961-8-1 Humboldt 6 miles north of Trinidad on #101 Comment
  RSA32654  Boykinia occidentalis Doris K. Kildale 1925-7-28 1100 Humboldt [Unspecified] Comment
  HSC37950  Brassica nigra Peter Sorensen 1976-6-16 Humboldt Woodley Island, Humboldt Bay Comment
  HSC41849  Brassica rapa K. Irwin 1977-4-23 281 Humboldt 2.5 mi. S of Shelter Cove Rd., S Fork of Bear Creek at Wailaki Campground 561 Comment
  HSC6581  Brassica rapa Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  CHSC59634  Briza maxima R. N. Raynor 1935-5-22 Humboldt Ft. Seward. Comment
  HSC45221  Briza maxima M. Alcasas 1978-5-28 110 Humboldt E end of Myrtle Ave., Eureka 8 Comment
  SEINET3921276  Briza maxima Glenn I. Wilcox 1973-5-26 s.n. Humboldt West shore of freshwater Lagoon.; 0 Comment
  SEINET14395468  Briza maxima K. W. Parker 1931-5-15 1003 Humboldt 2 mi N of Blocksburg Comment
  HSC65114  Briza minor J. P. Smith 1973-5-26 6864 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  HSC98090  Brodiaea elegans subsp. elegans Cara Witte 2007-7-11 482 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1391 Comment
  CAS-BOT-BC484215  Brodiaea elegans subsp. elegans Milo S. Baker 1923-7-20 77 Humboldt Near Carlotta; North Coast Trip 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
  JEPS5502  Brodiaea stellaris Joseph P. Tracy 1923-7-4 6526 Humboldt Valley of South Yager Creek Northern Coast Ranges 762 Comment
  HSC78981  Brodiaea terrestris subsp. terrestris L. P. Janeway 1984-5-16 794 Humboldt N Spit of Humboldt Bay, W side of Samoa Rd. 0.25 mi. N of the boat ramp 3 Comment
  UC526863  Bromus carinatus var. carinatus Joseph P. Tracy Jul 16 1930-Jul 19 1930 9047 Humboldt near Blake Lookout (Northern Coast Ranges. South Fork Mountain, along summit); Northern Coast Ranges. South Fork Mountain 1737 Comment
  UC249868  Bromus commutatus Joseph P. Tracy 1922-6-18 6091 Humboldt Northern Coast Ranges, Iaqua Iaqua; Northern Coast Ranges, Iaqua 609 Comment
  HSC9300  Bromus diandrus E. W. Styskel 1964-4-28 75 Humboldt End of Davis St. at the edge of Eel River in Rio Dell Comment
  UC180223  Bromus diandrus Joseph P. Tracy 1913-6-22 4273 Humboldt opposite Buck Mountain (in Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  HSC79464  Bromus hordeaceus Kenneth Clark 1980-4-18 610 Humboldt Along access trail to Dead Man's Gulch, above gulch. 137 Comment
  CAS-BOT-BC162447  Bromus laevipes L. R. Abrams 1918-6-16 7155 Humboldt Willow Creek. Comment
  HSC32513  Bromus laevipes D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-17 5716 Humboldt McKeown Ranch, N of Dinsmore Comment
  RSA152301  Bromus sterilis Joseph P. Tracy 1950-6-15 18776 Humboldt Mail Ridge. North of Harris 5 miles. 945 Comment
  HSC58381  Bromus suksdorfii Terry Griswold 1979-7-25 10855 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon 1784 Comment
  UC1145161  Bromus vulgaris Joseph P. Tracy 1937-7-25 15540 Humboldt Trintiy Summit, head of Little Hors-Linto Creek Little Hors-Linto Creek; Trintiy Summit, Little Hors-Linto Creek 1371 Comment
  CHSC68489  Cakile maritima Vernon H. Oswald 1997-4-10 8332 Humboldt Big Lagoon County Park at the southwest edge of Big Lagoon. North of the launch ramp. 3 Comment
  HSC103973  Cakile maritima C. Reynolds 2015-3-16 18 Humboldt Along Freshwater Beach, due south of the Kuchel Visitor Center 1 Comment
  RSA12540  Calamagrostis C. B. Wolf 1934-7-2 5898 Humboldt wet meadow at small lake at Snow Camp. (Mts. east of Korbel) Comment
  BLMAR12  Calamagrostis foliosa Brad Barr June, 1982 12 Humboldt King range, slide area above smith cabin in steep slopes Comment
  UC1145052  Calamagrostis foliosa Joseph P. Tracy 1938-6-17 15967 A Humboldt near Panther Gap (on road between Mattole and Bull Creek) 822 Comment
  UC1146622  Calamagrostis foliosa Freed W. Hoffman 1946-5-19 1737 Humboldt Rock in Mattole River Comment
  UC1103290  Calamagrostis koelerioides Joseph P. Tracy 1934-7-18 13408 Humboldt Horse Mountain Northern Coast Ranges 1524 Comment
  CAS-BOT-BC185184  Calamagrostis nutkaensis Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park. Comment
  SEINET4565504  Calamagrostis nutkaensis W. Silveus 1938-7-9 2979 Humboldt Dyerville Comment
  CAS-BOT-BC438312  Calandrinia ciliata Doris K. Kildale 1926-5-2 1887 Humboldt Horse Mountain cut-off on Willow Creek road. 792 Comment
  UC1103694  Callitriche heterophylla Joseph P. Tracy 1934-6-23 13249 Humboldt near Blue Lake (along Mad River); Mad River 15 Comment
  HSC12695  Callitriche stagnalis Jana Kattenhorn 1970-10-28 156 Humboldt Mad River at mouth of Lindsey Creek, North Bank Rd. off Hwy. 299, along Mad River Comment
  HSC56953  Calocedrus decurrens Overton, Butler 1979-7-23 9457 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  HSC72926  Calocedrus decurrens R. York 1980-5-23 619 Humboldt Near Buck Mtn. 1524 Comment
  OBI7409  Calocedrus decurrens H. Wiedman July1966 s.n. Humboldt Near the Hoopa Valley Indian Reservation 366 Comment
  OBI7412  Calocedrus decurrens H. Wiedman 1966-1 s.n. Humboldt Near the Hoopa Valley Indian Reservation 366 Comment
  HSC15406  Calochortus tolmiei J. P. Tracy, H. E. Parks 1934-6-27 7 Humboldt Grouse Mtn. 1372 Comment
  HSC73144  Calochortus tolmiei M. A. Baker 1980-5-18 1330 Humboldt Near Black Mtn. 792 Comment
  CAS-BOT-BC496521  Calochortus tolmiei Lincoln Constance; Alan A. Beetle; Joseph P. Tracy 1940-5-17 2614 Humboldt Larrabee Valley, near Eureka 762 Comment
  UC667122  Calochortus vestae Joseph P. Tracy 1930-6-15 8760 Humboldt Dobbyn Creek 152 Comment
  RSA54132  Calycadenia truncata subsp. scabrella H. M. Pollard 1946-8-31 s.n. Humboldt Orleans to Somes Bar Comment
  UC1196477  Calypso bulbosa Joseph P. Tracy 1942-6-23 17241 Humboldt near Box Camp (Trinity Summit); Trinity Summit 1524 Comment
  HSC16567  Calypso bulbosa W. R. Rogers 1967-3-19 227 Humboldt Bar W Ranch, 1 mi. W of Bridgeville Comment
  HSC95802  Calypso bulbosa Kevin Thomas 2004-4-26 15 Humboldt Titlow Hill Rd. Comment
  HSC97493  Calypso bulbosa Cara Witte 2007-5-21 59 Humboldt Board Camp Mountain. Near intersection of Forest Service Road 4N38 and National Forest 1. 1410 Comment
  UC1197885  Calystegia occidentalis subsp. occidentalis Joseph P. Tracy 1928-7-7 16028 Humboldt Horse Mountain 1432 Comment
  HSC69837  Calystegia soldanella R. Kalal 1979-5-28 64 Humboldt W of Samoa Blvd. 3 Comment
  SEINET3992217  Camassia leichtlinii Unknown 1912-6-30 3717 Humboldt Eureka 61 Comment
  HSC33753  Camissonia cheiranthifolia A. Montalvo 1975-5-24 267 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  HSC48807  Camissonia strigulosa Brad Klipfel 1975-5-22 619 Humboldt Near the city of Eureka airport S of Samoa Comment
  RSA456172  Campanula prenanthoides Anstruther Davidson 1918-07 3350 Humboldt Eel River. Comment
  SEINET10463063  Campanula prenanthoides Van Dke 1931-6-30 VAN DYKE s.n. Humboldt WILLOW CREEK Comment
  UC719785  Campanula prenanthoides Rogers McVaugh 1941-8-3 6214 Humboldt roadside bank 3.5 mi s Garberville Comment
  SEINET10463752  Campanula scouleri Rattan 1883-6-29 RATTAN s.n. Humboldt Near Redwood Creek Comment
  SEINET10463758  Campanula scouleri Howard S. Irwin 1975-8-16 Irwin s.n. Humboldt Grogan's Hole area Comment
  SEINET3238935 Image available Capsella bursa-pastoris Joseph P. Tracy 1929-4-28 8544 Humboldt Trinity River Valley, at Willow Creek 150 Comment
  CAS-BOT-BC37426  Cardamine californica Doris K. Kildale; L. B. Kildale 1930-5-11 9535 Humboldt Wiregrass Prairie - The Bald Hills. 792 Comment
  CAS-BOT-BC37432  Cardamine californica Victor Duran 1933-5-11 3405 Humboldt Van Duzen River near Bridgeville. Comment
  HSC48835  Cardamine californica Brad Klipfel, J. P. Smith, J. O. Sawyer 1973-5-27 47 Humboldt Grogan's Hole near N Trinity Mtn. 1829 Comment
  HSC95679  Cardamine californica Steven Lee 2004-4-6 8 Humboldt Arcata Community Forest, 5-20 ft. from water along Jolly Giant Creek Comment
  UC725904  Cardamine californica A. A. Heller 1937-6-8 15896 Humboldt 3 mi n Trinidad (Bishop Pine Lodge); , n of Trinidad Comment
  HSC98634  Cardamine californica var. californica Cara Witte 2008-7-16 918 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  RSA167406  Cardamine californica var. integrifolia Joseph P. Tracy 1950-4-20 18619 Humboldt West slope of Buck Mountain, along highway, about 2 miles S of the Little Van Duzen crossing. Comment
  CAS-BOT-BC37792  Cardamine nuttallii Joseph P. Tracy 1927-6-12 8129 Humboldt Northern Coast Ranges. Horse Mountain. 1524 Comment
  HSC99363  Cardamine nuttallii K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-24 12 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  SEINET3377729  Cardamine nuttallii var. gemmata K. T. Harper 2002-1 2002 -6 Humboldt Prarrie Creek State Park, near Orick, on Big Tree Trail. Comment
  HSC28224  Cardamine oligosperma Thomas W. Nelson 1971-4-12 378 Humboldt S spit of Humboldt Bay. Comment
  HSC6640  Cardamine oligosperma John A. Dubois 1962-5-12 4 Humboldt 20 mi. E of Arcata Comment
  RSA183564  Cardamine oligosperma R. I. Bonn 1965-4-23 18 Humboldt 4 miles W of Arcata on Lanphere Rd. Comment
  CAS-BOT-BC37891  Cardamine oligosperma Doris K. Kildale 1927-3-20 2916 Humboldt Philipsville. Smith Fork of Eel River. Comment
  RSA442190  Cardamine oligosperma M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale. Comment
  UC552295  Cardaria draba Joseph P. Tracy 1933-5-19 12201 Humboldt Alton to Fortuna (Eel River); Eel River 15 Comment
  CHSC55892  Cardionema ramosissimum L. P. Janeway 1987-7-31 2546 Humboldt Vicinity of Eureka; North Spit of Humboldt Bay near the SE corner of Eureka City Airport. 3 Comment
  JEPS26007  Carex abrupta Joseph P. Tracy 1939-7-9 16340 Humboldt Snow Camp 1402 Comment
  UC1103586  Carex amplifolia Joseph P. Tracy 1933-8-6 12948 Humboldt French Camp Ridge 1066 Comment
  UC1115811  Carex aquatilis var. dives Joseph P. Tracy 1938-7-6 16024 Humboldt Big Lagoon 6 Comment
  RSA286355  Carex aquatilis var. dives Robert F. Thorne 1974-7-29 45076 Humboldt Samoa Dunes: Between Humboldt Bay and Pacific Ocean. Comment
  JEPS109914  Carex arcta Dean W. Taylor 2006-8-3 19573 Humboldt Lake Prairie; marshy area between the dam and the county road 1057 Comment
  SEINET2044695 Image available Carex arcta Juha Pykala, D. H. Norris 1987-6-5 1436 Humboldt E of Maple Creek, Lake Prairie. 1052 Comment
  SEINET10644708  Carex athrostachya Joseph P. Tracy 1934-7-18 Tracy 13426 Humboldt 1524 Comment
  HSC98962  Carex bolanderi Cara Witte 2008-7-16 913 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  HSC36160  Carex bolanderi Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-7-20 2051 Humboldt FS Rd. 2S08, below Alder Springs Comment
  HSC48136  Carex bolanderi D. H. Norris 1971-7-17 19599 Humboldt Along Redwood House Rd., 4 mi. W of intersection with Kneeland-Bridgeville Rd. Comment
  HSC23092  Carex brainerdii D. H. Norris 1971-5-17 19078 Humboldt On trail to King Peak, 1 mi. N of road terminus of Horse Mtn. to King Peak Rd., N of Shelter Cove 1067 Comment
  CAS-BOT-BC110192  Carex buxbaumii Joseph P. Tracy 1927-4-23 7916 Humboldt Big Lagoon. 30 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
  HSC96498  Carex buxbaumii Gordon Leppig 1999-7-9 1183 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  UC1100648  Carex cusickii Malcolm A. Nobs, S. Galen Smith 1949-8-3 1197 Humboldt marsh and bog land at the southern outskirts of Eureka Eureka Comment
  CAS-BOT-BC34971  Carex densa Joseph Prince Tracy 1936-6-3 14848 Humboldt Trinity River Valley, at Willow Creek. 152 Comment
  JEPS80029  Carex densa Joseph P. Tracy 1925-5-30 7048 Humboldt McClellan Mountain Northern Coast Ranges, McClellan Mountain 822 Comment
  UC1152065  Carex densa Joseph P. Tracy 1950-7-6 18987 Humboldt lower end of Burr Valley on nw slope of Buck Mountain Burr Valley, Buck Mountain 1066 Comment
  UC1116267  Carex deweyana subsp. leptopoda Joseph P. Tracy 1943-7-18 17442 Humboldt Big Lagoon 9 Comment
  UC302098  Carex deweyana subsp. leptopoda Joseph P. Tracy 1912-7-25 3815 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC50823  Carex deweyana subsp. leptopoda J. P. Tracy 1900-5-28 808 Humboldt immediate vicinity of Eureka Comment
  CAS-BOT-BC20012  Carex feta H. D. Ripley; R. C. Barneby 1945-6-16 6823 Humboldt NW of Harris. 883 Comment
  SEINET7558573 Image available Carex feta K. E. Sau 1934-5-28 50 Humboldt Fort Seward. 610 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
  CHSC109942  Carex geyeri Peter F. Zika 2011-7-3 25498 Humboldt Titlow Hill Road, 4.2 road miles SE of Route 299 at Berry Summit, 0.8 air km SSW of Horse Mountain, Outer North Coast Ranges. 1390 Comment
  CAS-BOT-BC20878  Carex globosa Harold Ernest Parks; Joseph Prince Tracy 1942-5-16 11556 Humboldt Vicinity of Garberville. 152 Comment
  UC197210  Carex gynodynama Joseph P. Tracy 1912-7-25 3821 Humboldt Northern Coast Ranges, Kneeland Prairie. Comment
  UC213330  Carex gynodynama Joseph P. Tracy 1920-5-18 5324 Humboldt Northern Coast Ranges: On South Fork, 5 miles above Dyerville. Along Eel River from South Fork to Scotia. Comment
  CAS-BOT-BC146619  Carex gynodynama Alice Eastwood; John Thomas Howell 1937-6-22 4750 Humboldt 8 1/2 miles from Blocksburg on road to Bridgeville Comment
  CAS-BOT-BC20462  Carex harfordii Joseph Prince Tracy 1936-6-5 14858 Humboldt Fickle Hill. 6 miles SE of Arcata. 579 Comment
  SEINET7561248 Image available Carex harfordii David Castaner 1989-5-28 8067 Humboldt Patrick Point SP Area, Redwood Forest. Comment
  CAS-BOT-BC21754  Carex hassei Joseph Prince Tracy 1941-5-11 16868 Humboldt Big Lagoon. 152 Comment
  SEINET7854031 Image available Carex hendersonii V. Duran 1933-5-12 3412 Humboldt Bull Creek, at South Fork of Eel River Comment
  CHSC90275  Carex hoodii Thomas W. Nelson; Jane P. Nelson 1987-6-11 8541 Humboldt North Coast Ranges. Along Forest Road 13N01 18 miles from junction with State Route 96. 1066 Comment
  UC115803  Carex hoodii Joseph P. Tracy 1939-7-9 16343 Humboldt Snow Camp 1402 Comment
  HSC102203  Carex integra M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1118 Humboldt Along trail (abandoned Road 6E74) from Andy's Camp to Patterson Meadows 1563 Comment
  CAS-BOT-BC7790  Carex laeviculmis Joseph Prince Tracy 1930-7-16 8985 Humboldt South Fork Mountain. At McKay Camp. 1676 Comment
  CAS-BOT-BC7793  Carex laeviculmis Joseph Prince Tracy 1932-7-16 10635 Humboldt Trinity Summit 1584 Comment
  CHSC93148  Carex lenticularis var. impressa Thomas W. Nelson; Jane P. Nelson 1987-6-11 8584 Humboldt North Coast Ranges. At trail head and along trail to Grogans Hole. Comment
  HSC103140  Carex lenticularis var. lipocarpa M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1060 Humboldt Patterson Meadows 1555 Comment
  UC562730  Carex mendocinensis Joseph P. Tracy 1933-7-25 12873 Humboldt North Coast Ranges, Grouse Mountain. Comment
  CAS-BOT-BC539840  Carex mendocinensis H. N. Bolander; Kellogg, M. D.; & Co. 1967-6-1 s.n. Humboldt Red Mt. Comment
  HSC102160  Carex microptera M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-3 1070 Humboldt Patterson Meadows 1555 Comment
  HSC73580  Carex multicaulis Gail Newton 1980-7-14 1480 Humboldt Near Last Chance Ridge. 1219 Comment
  UC2015846  Carex multicaulis Joy Mastrogiuseppe, Tom Nelson 1986-7-22 4360 Humboldt Coast Range, Buck Mountain Comment
  HSC70849  Carex multicostata M. A. Baker 1980-6-7 1826 Humboldt Near Ammon Creek 732 Comment
  HSC75764  Carex multicostata Teresa Prendusi 1981-7-21 289 Humboldt Near Whiteys Peak 1646 Comment
  UC562268  Carex nervina Joseph P. Tracy 1932-7-16 10627 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  CHSC34065  Carex nudata Joseph P. Tracy 1911-6-4 3221 Humboldt Northern Coast Region. Along Little River, 5 miles from the coast. 121 Comment
  UCR40087  Carex nudata L. P. Janeway 1983-7-23 435 Humboldt Blue Lake Q., North Fork of Mad River at the old Hwy 299 bridge (near the new bridge). 40 Comment
  HSC7069  Carex obnupta S. J. Hawks, D. E. Anderson 1965-5-18 14 Humboldt 1/4 mi. W of Fairhaven Comment
  UCD140701  Carex obnupta Gordon Leppig 1998-6-26 858 Humboldt McKinleyville, Hammond Trail, 100 m south of Knox Cove. 18 Comment
  CAS-BOT-BC119381  Carex obnupta Joseph Prince Tracy 1934-7-13 13381 Humboldt Arcata Bottom. 15 Comment
  CDA33127  Carex obnupta E. C. Whitney 1961-4-6 Humboldt Stone Lagoon; in drainage basin. 0 Comment
  HSC37833  Carex obnupta Thomas W. Nelson 1976-3-4 2263 Humboldt Eureka, beside Buhne St. between S St. and Harrison Ave. Comment
  JEPS80016  Carex obnupta Joseph P. Tracy 1906-5-13 2459 Humboldt Ocean Beach at Humboldt Bay Northern Coast Region, Humboldt Bay Comment
  CAS-BOT-BC119268  Carex ovalis Alice Eastwood; John Thomas Howell 1937-6-23 4790 Humboldt Near Dinsmore's Comment
  UC1115801  Carex pachystachya Joseph P. Tracy 1939-7-9 16325 Humboldt Lake Prairie Bald Mountain 1066 Comment
  CAS-BOT-BC119166  Carex pansa Joseph Prince Tracy 1935-7-18 14104 Humboldt Low sandy growth at edge of sald marsh next to Table Bluff. 3 Comment
  CAS-BOT-BC117348  Carex stipata LeRoy Abrams 1918-6-16 7166 Humboldt Willow Creek. Comment
  CAS-BOT-BC116904  Carex subbracteata var. subbracteata Alice Eastwood; John Thomas Howell 1937-6-23 4808 Humboldt Little Van Duzen River Comment
  UC1103117  Carex tumulicola Joseph P. Tracy 1919-5-31 5153 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC197216  Carex tumulicola Joseph P. Tracy 4104 Humboldt opposite Buck Mountain (Dinsmore's Ranch); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC8083  Carex tumulicola Harley P. Chandler June 1901 1416 Humboldt Klamath River North Coast Ranges 335 Comment
  JEPS79867  Carex unilateralis Joseph P. Tracy 1933-6-9 12539 Humboldt Fortuna North Coast Ranges, Fortuna 18 Comment
  UC249742  Carex vesicaria Joseph P. Tracy 1924-7-4 6705 Humboldt Snow Camp Northern Coast Ranges 1371 Comment
  UC562328  Carex vesicaria var. major Joseph P. Tracy 1931-5-17 9423 Humboldt opposite mouth Willow Creek (Lack Pond); Northern Coast Ranges, Trinity River Valley 152 Comment
  SEINET7581203 Image available Carex viridula H. E. Parks 5214 Humboldt South of Orick. Comment
  HSC96465  Carex viridula subsp. viridula Gordon Leppig 1997-8-3 639 Humboldt Big Lagoon County Park, Big Lagoon Bog, N edge 3 Comment
  UC1225792  Carpobrotus chilensis Joseph P. Tracy 1947-9-1 17924 Humboldt Big Lagoon 6 Comment
  UCD129942  Carthamus lanatus T. C. Fuller 1962-8-7 9365 Humboldt Luke's Prairie, on ridge 1 m. north above Bull Creek, ca. 2 miles west of Dyerville. Comment
  JEPS8504  Castilleja affinis subsp. litoralis Joseph P. Tracy 1926-6-18 7606 Humboldt e of Fields Landing; Humboldt Hill 152 Comment
  UC1196864  Castilleja affinis subsp. litoralis J. P. Tracy 1901-5-12 1084 Humboldt immediate vicinity Eureka 0 Comment
  HSC38444  Castilleja ambigua subsp. humboldtiensis J. P. Smith 1976-7-3 8934 Humboldt Just N of Samoa Bridge Comment
  POM92403  Castilleja ambigua subsp. humboldtiensis L. R. Abrams 1922-6-25 8249 Humboldt Humboldt Bay, east of Arcata. Comment
  JEPS3617  Castilleja applegatei subsp. martinii Clyde Ritchie Bell 1951-4-21 Humboldt about 4 mi n Orleans (along Calif Hwy 96 (Klamath River road)) Comment
  HSC98627  Castilleja applegatei subsp. pinetorum Cara Witte 2008-7-11 875 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  UC1011932  Castilleja applegatei subsp. pinetorum F. W. Pennell and J. P. Tracy 1940-7-7 26097 Humboldt w of Salyer; Grouse Mountain 1493 Comment
  CAS-BOT-BC255522  Castilleja applegatei var. pinetorum Henry M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1371 Comment
  CAS-BOT-BC255523  Castilleja applegatei var. pinetorum Henry M. Pollard 1943-8-1 s.n. Humboldt Orleans Mt. 1828 Comment
  HSC60038  Castilleja attenuata M. A. Baker 1978-5-6 492 Humboldt 2 km. W of Weitchpec along Klamath River Comment
  SEINET4095680  Castilleja exserta O. M. Clark 1932-1 5341 Humboldt North Eureka. Comment
  JEPS76825  Castilleja exserta subsp. latifolia L. R. Heckard with T. I. Chuang and R. C. Bacigalupi 1978-5-27 4805 Humboldt beach at Manila Manila; Samoa Peninsula, beach at Manila Comment
  HSC55670  Castilleja pruinosa Overton, Butler 1979-7-25 9874 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  UC902243  Castilleja pruinosa Joseph P. Tracy 1947-7-9 17847 Humboldt Horse Mountain 1432 Comment
  HSC49985  Castilleja pruinosa M. A. Baker 1979-6-7 785 Humboldt N bank of road to Snow Mtn. 610 Comment
  UCD74318  Caulanthus major Tim Curns 2008-7-1 s.n. Humboldt Nevada, Humboldt County: Toiyabe National Forest. Hinkey Summit, near road 084, across from road 536, along unmarked road. Comment
Read comments
May 23 2013
  UC1502116  Ceanothus R. Sutherland 1976-5-11 8 .11-76 Humboldt just outside Sec 32 Sec 32; Pt. Delgada Quad. 609 Comment
  RSA758814  Ceanothus arcuatus D. H. Wilken, E. L. Painter 2007-6-4 16738 Humboldt Titlow Road, 1.3 linear km southwest of summit of Horse Mountain, west of head of Horse Mountain Creek. 1325 Comment
  CAS-BOT-BC48529  Ceanothus cordulatus Doris Kildale Gillespie 1931-6-7 10618 Humboldt South Fork Mt. Blake Lookout 1726 Comment
  HSC97170  Ceanothus cordulatus Benjamin Hart, Erin Lonergan 2007-6-11 6 Humboldt 14.1 mi S of Hwy. 299 on USFS Rd. NF1 1524 Comment
  UCD19484  Ceanothus cuneatus John M. Tucker 1948-9-3 1852 Humboldt Six Rivers National Forest (formerly part of Trinity National Forest), on Horse Mountain at junction of road to Grouse Mt. and road to Horse Mt. Mine. 1463 Comment
  CAS-BOT-BC49320  Ceanothus cuneatus L. R. Abrams 1918-6-17 7210 Humboldt Hoopa to Briar's Resort on road to Korbel Comment
  HSC37603  Ceanothus foliosus var. foliosus R. Sutherland 1975-5-13 15 .13575 Humboldt Brushy flat 509 Comment
  HSC92755  Ceanothus foliosus var. foliosus J. R. McFarland 1997-4-10 Humboldt 3.7 mi N on King Range Rd. from Shelter Cove Rd. near peak 602 Comment
  UC1052835  Ceanothus incanus W. L. Colwell 1955-5-5 23 Humboldt North of Windbigler River Quad. 29-A-2 Comment
  UC634809  Ceanothus incanus H. L. Mason 1928-7-14 4901 Humboldt East Fork of Eel River Garberville Comment
  RSA0050338  Ceanothus incanus Carl B. Wolf 1941-3-3 9992 Humboldt N. Coast Range, 1/2 miles N of Ettersburg on road to Honeydew. 305 Comment
  CAS-BOT-BC63679  Ceanothus integerrimus L. B. Kildale 1927-7-3 3635 Humboldt Willow Creek Flat. 152 Comment
  JEPS42112  Ceanothus integerrimus Chesnut and Drew 1888-7-9 Humboldt Kneeland Prairie Comment
  UC176965  Ceanothus integerrimus Joseph P. Tracy 1913-6-21 4249 Humboldt Dinsmore's Ranch Valley of Van Duzen River, Northern Coast Ranges (opposite Buck Mt.,) 762 Comment
  RSA554577  Ceanothus integerrimus Walter Wisura 1993-5-9 4895 Humboldt Hwy 299, W of Redding on E side of Whiskeytown Lake near visitor center Comment
  CAS-BOT-BC63509  Ceanothus oliganthus var. sorediatus Doris K. Kildale 1926-11-13 2852 Humboldt Mouth of Lindsay Creek at Mad River. 30 Comment
  HSC37086  Ceanothus parryi R. Sutherland 1975-5-20 4 .20575 Humboldt 122 Comment
  HSC33413  Ceanothus pumilus Thomas W. Nelson 1974-5-30 1350 Humboldt Along Hoopa-Redwood Valley Rd. Comment
  HSC100906  Ceanothus thyrsiflorus Carl C. Marshall Apr 1885 16 Humboldt Vicinity Humboldt Bay everywhere. Comment
  HSC37081  Ceanothus thyrsiflorus R. Sutherland 1975-5-17 2 .17575 Humboldt Horse Mtn. Rd. edge 518 Comment
  RSA172184  Ceanothus thyrsiflorus Robert F. Thorne 1957-9-3 19022 Humboldt Patrick's Point State Park. Comment
  UC275283  Ceanothus velutinus Joseph P. Tracy 1923-10-28 6590 Humboldt Bald Mountain 762 Comment
  RSA21587  Ceanothus velutinus var. laevigatus Carl B. Wolf 1937-8-13 9232 Humboldt North coast range, 8 mi. east of Hoopa Valley on new road towards Trinity summit. 1220 Comment
  CAS-BOT-BC277180  Centaurea X pouzinii T. C. Fuller 1961-9-26 7030 Humboldt Horse Prairie, 2 mi. s. of Redcrest Comment
  CDA7302  Centaurea X pouzinii T. C. Fuller 1960-8-25 4975 Humboldt Pacific Lumber Company, Perrott Creek, across Eel River from Dyerville. 0 Comment
  SEINET11860706  Centaurea cyanus J. P. Tracy 1948-8-8 18097 Humboldt halfway between Bridgeville & head of S. Yager Comment
  CDA7313  Centaurea pratensis T. C. Fuller 1961-9-28 7046 Humboldt Opposite 2827 Hubbard Lane, one half block west of Harris Street at Redwood Acres Park. 0 Comment
  RSA424591  Centaurea solstitialis Thomas S. Elias, Barbara A. Elias 1987-8-26 10626 Humboldt Fernbridge, 0.5 mile S of Route 101; along West bank of Eel River, about 0.5 mile N of bridge Comment
  SEINET200851  Centaurea solstitialis Joseph P. Tracy 1933-8-27 13002 Humboldt Camp Grant along Eel River 2-5 miles E of the South Fork 46 Comment
  POM208980  Centaurium muehlenbergii Lincoln Constance 1934-6-4 820 Humboldt South slope of Look Prairie, Bull Creek watershed. 381 Comment
  RSA171942  Centaurium muehlenbergii Robert F. Thorne 1957-9-2 18993 Humboldt Burlington State Park, just S of Weott. Comment
  RSA245260  Centaurium muehlenbergii B. D. Rogers, William J. Ferlatte 1966-8-15 3130 Humboldt North Bank Road, two miles north of Arcata. Comment
  HSC74319  Cephalanthera austiniae Gail Newton 1980-7-20 1600 Humboldt Near Bell Swamps 1463 Comment
  HSC74322  Cephalanthera austiniae Gail Newton 1980-7-20 1627 Humboldt Near Bell Swamps 1426 Comment
  HSC100414  Cerastium nutans Carl C. Marshall Jun 1887 446 Humboldt Throughout Humboldt County. Comment
  HSC56986  Chamaecyparis lawsoniana Overton, Butler 1979-7-23 9534 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 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
  UC1197021  Chamerion angustifolium subsp. circumvagum Mrs. Laura P. Mahan 1928-6-24 Humboldt 3 mi se Scotia; Eel River 30 Comment
  CAS-BOT-BC68262  Cheilanthes gracillima J. H. Thomas 1949-6-13 923 Humboldt Six Rivers National Forest - along trail between Le Perron Flat and Whiteys Peak (East of town of Orleans). 1828 Comment
  CAS-BOT-BC70164  Cheilanthes gracillima Henry M. Pollard 1947-9-1 s.n. Humboldt Peak of Somes Mtn. nr. Orleans 1524 Comment
  UC582918  Chenopodium botrys P. A. Munz 1936-8-9 14334 Humboldt Williams Redwood Grove South Fork of Eel River Comment
  UC1197602  Chimaphila menziesii Joseph P. Tracy 1947-8-24 17903 Humboldt near Box Camp (Trinity Summit); Trinity Summit 1524 Comment
  CAS-BOT-BC451500  Chimaphila umbellata Doris K. Kildale 1928-4-29 5962 Humboldt Bald Mountain Comment
  HSC45410  Chimaphila umbellata Thomas W. Nelson, Jane Nelson 1977-7-1 3567 Humboldt 1494 Comment
  RSA467019  Chimaphila umbellata subsp. occidentalis C. B. Wolf 1937-8-13 9258 Humboldt North coast range, 11 mi. E. of Hoopa Valley on new road toward Trinity Summit. 1524 Comment
  HSC15440  Chlorogalum pomeridianum Elrid H. Spinas 1948-5-15 13 Humboldt Horse Mtn. Comment
  JEPS50839  Chlorogalum pomeridianum var. pomeridianum Wayne Roderick 1966-6-18 Humboldt ca 3 road mi n Bridgeville 762 Comment
  CAS-BOT-BC237976  Chloropyron maritimum subsp. maritimum J. D. Ackerman 1975-8-2 615 Humboldt Humboldt Bay, across from Murray Field (Eureka Airport). Near railroad tracks and hwy. 101 Comment
  RSA43688  Chrysanthemum parthenium H. M. Pollard 1947-8-28 s.n. Humboldt Roadside near Perch Creek, Orleans region Comment
  CAS-BOT-BC36477  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1937-7-29 15589 Humboldt Northern Coast Ranges. South Fork Mountain, west slope near top, at Hyampom Trail 1676 Comment
  HSC98993  Chrysolepis chrysophylla var. minor Cara Witte 2008-7-1 786 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately .5 mile south of intersection with 5N04 and 4N32E. 1406 Comment
  UCD110101  Chrysolepis chrysophylla var. minor Joseph P. Tracy 1936-8-7 15117 Humboldt Trinity Summit. 2 miles southeast of Devil's Hole. 1584 Comment
  UC1224690  Chrysosplenium glechomifolium D. E. Anderson 1964-4-12 2974 Humboldt small creek leading into Jacoby Creek (on n side of road) Comment
  JEPS35983  Cichorium intybus Lincoln Constance 1934-6-25 933 Humboldt Bull Creek Region. South Fork Eel River. On E side of road at Englewood, across the road from Collin's Englewood Campground. Comment
  UCD127284  Cicuta douglasii R. V. Parke; J. M. Tucker 1953-5-30 2652 Humboldt near mouth of Salmon Creek, east side of Highway 101, around 8 miles south of Eureka. Comment
  SEINET201029 Image available Cinna latifolia J. P. Tracy 1919-9-18 5255 Humboldt Trinity Summit 1524 Comment
  UC505099  Circaea alpina subsp. pacifica Joseph P. Tracy Jul 16 1930-Jul 19 1930 8927 Humboldt near McKay Camp (S. Fork Mt.); Northern Coast Ranges, S. Fork Mt. 1676 Comment
  HSC5371  Cirsium arvense H. D. Sumner 1959-7-13 Humboldt Redwood Creek near Hwy. 299 305 Comment
  POM289622  Cirsium arvense Lyman Benson 1929-7-12 1789 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  RSA0070609  Cirsium douglasii var. douglasii Joseph P. Tracy 1924-7-6 6717 Humboldt Near Ruby Creek, on the Willow Creek Highway. 610 Comment
  UC912553  Cirsium douglasii var. douglasii Herbert L. Mason 1932-7-21 7107 Humboldt on road from Arcata to Weaverville (e slope of South Fork Mountains); North Coast Ranges Comment
  HSC104423  Cirsium occidentale Jenny Lynn Hutchinson 2013-6-27 Humboldt Mt. Andy Comment
  SEINET201022  Cirsium occidentale Joseph P. Tracy 1926-6-20 7662 Humboldt Horse Mountain lower slopes; northern coast ranges 914 Comment
  HSC60029  Cirsium occidentale var. candidissimum M. A. Baker 1978-5-6 484 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  CAS-BOT-BC286388  Cirsium occidentale var. venustum Doris K. Kildale 1926-5-16 1838 Humboldt Horse Mountain 1066 Comment
  UC302287  Cirsium occidentale var. venustum Joseph P. Tracy 1926-6-20 7662 Humboldt Horse Mountain Northern Coast Ranges, Horse Mountain 914 Comment
  HSC35871  Cirsium occidentale var. venustum Thomas W. Nelson 1975-7-30 2122 Humboldt Beside private road to Pilot Rock Comment
  HSC32535  Cirsium vulgare Thomas W. Nelson 1973-9-3 1127 Humboldt McKeown Ranch N of Dinsmore Comment
  JEPS59312  Cirsium vulgare W. L. Jepson 1936-8-12 17890 Humboldt Philipsville South Fork Eel River, Philipsville Comment
  RSA40410  Cirsium vulgare P. A. Munz 1948-8-13 12349 Humboldt Highway 229, 21 miles E of Blue Lake 762 Comment
  CAS-BOT-BC162634  Clarkia J. Ed. McClellan; Bonnie McClellan 1972-6-1 s.n. Humboldt Dune flat, Samoa Comment
  HSC16236  Clarkia amoena J. P. Tracy 1938-6-17 15957 Humboldt Cape Mendocino, S of point of the Cape 3 Comment
  HSC104439  Clarkia amoena Greg O'Connell 2013-6-27 Humboldt Summit of Mt. Andy 1159 Comment
  UC35400  Clarkia amoena Chesnut and Drew 1888-7-9 Humboldt Campbell's Comment
  CAS-BOT-BC160956  Clarkia amoena subsp. amoena Doris K. Kildale 1926-6-27 2184 Humboldt McClellan Mountain 822 Comment
  POM301289  Clarkia amoena subsp. amoena Joseph P. Tracy 1945-7-4 17511 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  CAS-BOT-BC164176  Clarkia concinna M. S. Jussel 1931-5-2 s.n. Humboldt Near Garberville Comment
  UC169900  Clarkia concinna subsp. concinna Mrs. M. H. Manning 1901-1 75 Humboldt near Hupa Comment
  UC183694  Clarkia gracilis subsp. gracilis Joseph P. Tracy 1913-6-23 4284 Humboldt ridge between Van Duzen River and Mad River (near summit, on Dinsmore's Ranch); Northern Coast Ranges 1066 Comment
  UC702560  Clarkia purpurea C. C. and S. K. Harris, J. P. Tracy 1942-6-22 1261 Humboldt 7 mi n and 5 mi e Willow Creek 165 Comment
  CAS-BOT-BC172515  Clarkia purpurea subsp. quadrivulnera Alice Eastwood; John Thomas Howell 1937-6-22 4722 Humboldt Near Harris Comment
  JEPS43827  Clarkia purpurea subsp. quadrivulnera Milo S. Baker 1923-7-20 67 b Humboldt Redwood House North Coast Comment
  RSA167262  Clarkia purpurea subsp. quadrivulnera Joseph P. Tracy 1950-6-15 18809 Humboldt Mail Ridge, North of Harris, Fort Seward Ranch Comment
  CAS-BOT-BC172390  Clarkia purpurea subsp. viminea Joseph P. Tracy 1936-6-10 14924 Humboldt South Fork of Trinity River, mountain slopes west of its mouth. 457 Comment
  HSC67189  Claytonia exigua subsp. exigua Thomas W. Nelson, James Nelson 1980-6-10 5425 Humboldt Along NE side of Red Mtn. 1433 Comment
  HSC70775  Claytonia parviflora subsp. parviflora R. York 1980-5-17 552 Humboldt Near Le Perron Peak 1066 Comment
  UC672996  Claytonia parviflora subsp. parviflora Joseph P. Tracy 1937-3-17 15285 Humboldt Willow Creek; Trinity River Valley 152 Comment
  UC203567  Claytonia parviflora subsp. parviflora Joseph P. Tracy 1918-4-7 4862 Humboldt mouth of Strawberry Creek; Northern Coast Ranges, Dows Prairie 6 Comment
  UC902106  Claytonia perfoliata subsp. intermontana Joseph P. Tracy 1949-6-6 18306 Humboldt ne of Hawkins Bar (Happy Camp Mountain); Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UC198590  Claytonia rubra subsp. depressa Joseph P. Tracy 1917-5-30 4792 Humboldt Little River Beach; Northern Coast Ranges 6 Comment
  HSC104454  Claytonia rubra subsp. rubra Jeff Barrett, Keleigh Deitsch, Tessa Purdy 2014-4-13 6 Humboldt Samoa Peninsula, Fairhaven, along south side of Bay Street 5 Comment
  HSC101994  Claytonia sibirica M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 893 Humboldt Patterson Meadows 1566 Comment
  HSC31553  Claytonia sibirica Glenn McGourty 1974-5-11 43 Humboldt Along Maple Creek Rd. Comment
  HSC55187  Claytonia sibirica G. L. Clifton, Griswold 1979-8-2 12246 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  SBBG69718  Claytonia sibirica L. Rowntree 1931-7-21 Humboldt near Ferndale Comment
  HSC91387  Claytonia sibirica Jeff Dunk, David Munger, Tallchief Comet 1987-2-24 Humboldt Arcata, NE of HSU field House to Jolly Giant Creek Comment
  CAS-BOT-BC92596  Clematis ligusticifolia Mrs. E. C. Van Dyke 1931-6-30 s.n. Humboldt Willow Creek. Comment
  CAS-BOT-BC499340  Clintonia andrewsiana Doris K. Kildale 1926-3-26 1638 Humboldt Old Kneeland Road 60 Comment
  HSC15446  Clintonia andrewsiana Jack Rockwell 1962-4-29 67 Humboldt S bank Van Duzen River E of Hwy. 101 Comment
  CAS-BOT-BC238026  Collinsia Doris Kildale Gillespie 1931-6-7 10601 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  HSC74444  Collinsia grandiflora M. A. Baker 1980-6-8 1924 Humboldt Near Buck Flat. 1554 Comment
  UC1196764  Collinsia grandiflora Harley P. Chandler May 1901 1251 Humboldt Redwood Belt; North Coast Ranges 457 Comment
  HSC39196  Collinsia greenei D. E. Anderson, J. P. Smith 1971-7-6 - 1329 Humboldt 1.0 mi. W of Pine Ridge Summit, 6 mi. E of junction with Redwood Valley Rd. Comment
  HSC32485  Collinsia linearis Bonnie Prange 1974-5-18 Humboldt Off Hwy. 299 at China Slide. Comment
  UC582454  Collinsia linearis Joseph P. Tracy 1934-7-18 13418 Humboldt North Coast Ranges, Grouse Mountain Grouse Mountain; North Coast Ranges, Grouse Mountain 1524 Comment
  JEPS6177  Collinsia linearis Joseph P. Tracy 1934-7-18 13418 Humboldt Grouse Mtn; North Coast Ranges 1524 Comment
  UC1196840  Collinsia rattanii Joseph P. Tracy 1923-6-24 6353 Humboldt Northern Coast Ranges, Bald Mountain, High Prairie High Prairie; Northern Coast Ranges, Bald Mountain, High Prairie 1066 Comment
  UC582465  Collinsia sparsiflora var. sparsiflora Joseph P. Tracy 1932-5-10 9932 Humboldt Bear River Ridge; Northern Coast Ranges, Bear River Ridge 609 Comment
  UC60868  Collomia grandiflora Harley P. Chandler June, 1901 1361 Humboldt Hupa Indian Reservation North Coast Ranges 152 Comment
  HSC73125  Collomia heterophylla M. A. Baker 1980-5-18 1306 Humboldt Near Black Mtn. 1006 Comment
  UC52746  Collomia heterophylla J. P. Tracy 1900-5-28 823 Humboldt Eureka Comment
  HSC16921  Collomia heterophylla D. E. Anderson 1965-5-15 3699 Humboldt 5 mi. N of Hoopa on Bald Hills Rd. 198 Comment
  HSC74404  Collomia tracyi Gail Newton 1980-6-28 745 Humboldt Near Mad River Butte. 1536 Comment
  JEPS26236  Collomia tracyi Joseph P. Tracy 1939-8-5 16373 Humboldt Dinsmore's; Van Duzen River 737 Comment
  UC1197863  Collomia tracyi Joseph P. Tracy 1932-7-13 10517 Humboldt open places at Corral Prairie Trinity Summit 1584 Comment
  UC133632  Collomia tracyi Joseph P. Tracy 1908-6 2719 Humboldt opposite Buck Mountain (sand bars along river); Northern Coast Ranges, valley of Van Duzen River; valley of Van Duzen River, opposite Buck Mt., Humboldt Co. 304 Comment
  UC1197344  Conioselinum pacificum Joseph P. Tracy 1913-8-31 4388 Humboldt near Indianola (s end of Humboldt Bay); Northern Coast Region, Humboldt Bay Region 0 Comment
  HSC28189  Convolvulus arvensis Richard Curtis 1973-9-28 25 Humboldt Along R. R. track near mouth of Nanning Cr. Comment
  UC165028  Conyza canadensis J. P. Tracy 1906-8-18 2540 Humboldt immediate vicinity Eureka 0 Comment
  SEINET10474193  Conyza canadensis Mary Susan Taylor 1982-10-24 Taylor 5182 A Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  HSC48985  Coptis laciniata M. A. Baker 1979-5-25 765 Humboldt Comment
  JEPS109236  Coptis laciniata Stephanie Puentes 2008-4-23 Humboldt Vicinity Larabee Valley, along Horse Creek about 1 mile upstream from Hwy 36. Comment
  UC56310  Coptis laciniata Joseph P. Tracy 1899-6-18 5611 Humboldt Bald Mountain Comment
  HSC36648  Corallorhiza maculata J. D. Ackerman 1975-6-4 444 Humboldt Redwood National Park: 4 mi. E of Hwy. 101 on Bald Hills Rd. 335 Comment
  HSC76613  Corallorhiza maculata Teresa Prendusi 1981-6-9 185 Humboldt Near Cedar Camp 1268 Comment
  UC1196451  Corallorhiza maculata Joseph P. Tracy 1932-7-17 10663 Humboldt near Corral Prairie; Trinity Summit 1584 Comment
  BLMAR203  Corallorhiza maculata Jennifer Anthony-Wheeler 1996-7-9 203 Humboldt Pilot ridge. 1280 Comment
  JEPS64333  Corallorhiza maculata Lincoln Constance 1934-6-9 842 Humboldt Peavine Ridge South Fork Eel River, Bull Creek Region (w slope) 609 Comment
  HSC99048  Corallorhiza mertensiana Cara Witte 2007-6-20 315 Humboldt National Forest 1. 1.5 miles south of Titlow Hill. 1439 Comment
  UC1046561  Corallorhiza mertensiana R. Bacigalupi, L. Constance, J. P. Tracy, R. Moran, R. L. Rodriguez, and S. Carlquist 1951-6-14 3420 Humboldt 4700 ft ridge between Mad River and; Bald Mountain, Snow CamRedwood Creek Comment
  HSC5415  Corethrogyne filaginifolia D. E. Anderson 1963-5-25 2494 Humboldt 4 mi. W of Petrolia Comment
  JEPS15870  Corethrogyne filaginifolia Joseph P. Tracy 1938-7-15 16059 Humboldt sandy fields at Bucksport (at Eureka); Eureka Comment
  UC1199414  Corethrogyne filaginifolia Joseph P. Tracy 1918-7-3 4995 Humboldt Shelter Cove 15 Comment
  UC1223036  Corethrogyne filaginifolia Joseph P. Tracy 1950-6-18 18764 A Humboldt 1 mi w of town Petrolia Comment
  UC604617  Corethrogyne filaginifolia Joseph P. Tracy 1938-7-15 16059 Humboldt at Bucksport; Eureka 6 Comment
  RSA47113  Corethrogyne filaginifolia var. californica Doris K. Kildale 1925-7-26 1066 Humboldt Mad River near Blue Lake Comment
  SD38604  Corethrogyne filaginifolia var. filaginifolia Edith A. Purer 1932-7-30 4675 Humboldt Sand dunes south of Oric. Comment
  CAS-BOT-BC209752  Cornus glabrata Doris K. Kildale 1926-8-15 2535 Humboldt Hoopa Mountain 579 Comment
  CAS-BOT-BC209753  Cornus glabrata L. R. Abrams 1922-6-25 8219 Humboldt Camp 6 mi north of Garberville Comment
  HSC44069  Cornus nuttallii Thomas W. Nelson, Jane P. Nelson 1977-7-1 3560 Humboldt Along Blanket Creek tributary. 1463 Comment
  HSC6415  Cornus nuttallii Lincoln Constance 1934-6-2 789 Humboldt S Fork Eel River, Bull Creek, 0.5 mi. W of mouth. Comment
  HSC97551  Cornus nuttallii Cara Witte 2007-5-31 159 Humboldt National Forest Road 1. 1 mile south of intersection with 5N04. 1551 Comment
  UC1222617  Cornus nuttallii Joseph P. Tracy 1950-10-7 19384 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  UC412923  Cornus nuttallii P. E. Goddard 1906-6 692 Humboldt Lasseck Peak Comment
  SEINET12137714  Cornus nuttallii F. H. Utech 1988-1 88 -278 Humboldt along CA 36 from Bridgeville enroute to Dinsmore, bluff above Van Duzen River 800 Comment
  JEPS50152  Cornus sericea subsp. sericea Lincoln Constance 1934-6-11 844 Humboldt trail along e. bank S. Fork Eel R., N. Dyerville Flat Bull Creek Region, S. Fork Eel R., N. Dyerville Flat Comment
  UC906747  Cornus sericea subsp. sericea Joseph P. Tracy 1947-6-26 17747 Humboldt forest near McKay Camp (S. Fork Mt.); S. Fork Mt. 1676 Comment
  RSA0019462  Cornus sessilis H. M. Pollard 1948-7-27 s.n. Humboldt Mouth of Red Cap Creek near Orleans. Comment
  UC668054  Coronopus didymus Joseph P. Tracy 1938-7-15 16067 Humboldt Mouth of Eel River 3 Comment
  UC503087  Corylus californica Joseph P. Tracy 1931-8-16 9611 Humboldt near Briceland Northern Coast Ranges 152 Comment
  CAS-BOT-BC180314  Corylus cornuta subsp. californica L. B. Kildale 1927-7-10 3734 Humboldt Gans Prairie - Bold Hills road Comment
  RSA1364  Corylus cornuta var. californica C. B. Wolf 1929-08 1424 Humboldt Stephens Grove, Redwood Highway. Comment
  UC249807  Cotula australis Joseph P. Tracy 1923-5-19 6211 Humboldt vicinity Trinidad 30 Comment
  CAS-BOT-BC291342  Cotula coronopifolia Elmer I. Applegate 1923-9-13 4009 Humboldt 5 miles south of Eureka Comment
  CAS-BOT-BC291343  Cotula coronopifolia H. E. Parks 1941-9-1 24211 Humboldt Little River State Park Comment
  HSC78083  Crassula aquatica L. P. Janeway, K. Berg, Rudy Becking 1984-4-11 719 Humboldt N Spit of Humboldt Bay, BLM lands ('Coast Guard Reservation') 3 Comment
  HSC48026  Crepis acuminata Brad Klipfel 1974-6-25 424 Humboldt Horse Mtn. Comment
  CAS-BOT-BC291480  Crepis capillaris Eliz. Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  UC1787278  Crepis capillaris G. K. Helmkamp, E. A. Helmkamp 2001-7-8 6992 Humboldt North coast redwood area; CA-36, along the Van Duzen R. 19.6 mi E of US-101 (W of Bar W rd). 137 Comment
  UC540834  Crepis capillaris David D. Keck and J. Clausen 1935-6-16 3397 Humboldt Orick Comment
  HSC26921  Crepis capillaris Brad Klipfel 1973-7-24 221 Humboldt Arcata Comment
  RSA47135  Crepis capillaris Doris K. Kildale 1925-6-29 938 Humboldt Van Duzen R. near Alton Comment
Read comments
Jul 10 2009
  HSC98096  Crepis pleurocarpa Cara Witte 2007-6-20 310 Humboldt Forest Service Road 4N32. 1 mile south of intersection with 4N32E. 1386 Comment
  CAS-BOT-BC290907  Crepis setosa Henry M. Pollard 1947-8-21 s.n. Humboldt Between Orleans and Boyse [Boise] Creek Comment
  CAS-BOT-BC290910  Crepis setosa Joseph P. Tracy 1947-7-13 17769 Humboldt Hors-Linto [Horse Linto] Creek 152 Comment
  RSA285966  Crocosmia X crocosmiiflora T. C. Fuller 1968-7-30 17446 Humboldt Northwest corner of overpass of Highway 1 freeway to Garberville, 1 mile south of Fields Landing Comment
  HSC58140  Cryptantha affinis Gilbert Muth 1979-8-1 12159 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC40851  Cryptantha affinis Thomas W. Nelson 1976-7-9 2998 Humboldt Along W side of ridge S of E peak of Lassic Mtn., (Signal Peak). 1524 Comment
  BLMAR607  Cryptantha leiocarpa Jennifer Wheeler 2011-4-1 607 Humboldt King range, growing throughout the Mattole Beach duns 0 Comment
  HSC3576  Cryptantha leiocarpa J. W. Johnson 1962-5-27 1381 Humboldt Arcata; at N end near the foredunes, Christensen Farm, Samoa Peninsula Comment
  HSC78612  Cryptantha leiocarpa L. P. Janeway, Amy Eisenberg 1984-4-24 743 Humboldt On N Spit of Humboldt Bay, SE side of intersection of Samoa and Fairhaven Rds. and E of the Willow patch 3 Comment
  HSC57192  Cryptantha torreyana Griswold, Butler 1979-7-11 6945 Humboldt Near Snow Camp Mtn., close to the town of Willow Creek. 1320 Comment
  UC1239652  Cryptantha torreyana Joseph P. Tracy 1912-7-31 3895 Humboldt nw slope Buck Mountain; Northern Coast Ranges, Burr Valley 1066 Comment
  UC502918  Cupressus lawsoniana Joseph P. Tracy 1927-3-27 7864 Humboldt Willow Creek Canyon Northern Coast Ranges, Willow Creek Canyon 762 Comment
  JEPS43034  Cuscuta californica Lincoln Constance 1934-6-15 883 Humboldt Summit of Grasshopper Peak South Fork Eel River, Bull Creek Region, Grasshopper Peak 975 Comment
  RSA144007  Cuscuta campestris P. H. Raven 1961-8-22 16577 Humboldt Chileno Valley Comment
  UC1197868  Cuscuta occidentalis Joseph P. Tracy 1949-8-4 18409 Humboldt Mud Springs Trinity Summit 1341 Comment
  UC902072  Cuscuta occidentalis Joseph P. Tracy 1949-8-4 18429 Humboldt Box Camp Trinity Summit 1463 Comment
  NY1043284  Cuscuta salina C. C. Harris 1941-8-28 1175 Humboldt Humboldt Bay near Table Bluffs Comment
  HSC100845  Cynodon dactylon J. P. Smith, J. O. Sawyer 2009-10-4 12687 Humboldt Edge of parking lot at Ma-Le'l Dunes BLM Co-op Management Area 7 Comment
  UC922013  Cynodon dactylon Joseph P. Tracy 1949-8-18 16427 Humboldt Eureka 15 Comment
  HSC3643  Cynoglossum grande S. S. Stutz 1963-4-21 26 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  HSC99285  Cynoglossum grande Jimerson, J. Pageau 1979-5-24 482 Humboldt Near Orleans 143 Comment
  UC1222258  Cynoglossum occidentale Joseph P. Tracy 1949-6-6 18302 Humboldt 6 mi. n.e. Hawkins Bar (Happy Camp Mt., Trinity Summit Rd.); Trinity Summit Range, Happy Camp Mt. 1280 Comment
  UC1040573  Cynosurus cristatus L. T. Burcham 1956-7-19 341 Humboldt 1.5 mi nw Petrolia 152 Comment
  UC1103239  Cynosurus cristatus Joseph P. Tracy 1941-7-26 16969 Humboldt Eureka 30 Comment
  SEINET11676331  Cynosurus echinatus L. K. Henry 1971-1 s.n. Humboldt along Rt. 36, 2 mi E of Dinsmore in Six Rivers National Forest Comment
  POM89794  Cyperus bipartitus Joseph P. Tracy 1920-8-15 5366 Humboldt Klamath River, at mouth of Bluff Creek 152 Comment
  UC668029  Cyperus bipartitus Joseph P. Tracy 1931-9-7 9664 Humboldt Trinity R. Valley at Willow Creek; Trinity R. Valley 152 Comment
  HSC97544  Cyperus eragrostis Ivy Watson 2008-10-5 40 Humboldt Blue Lake; ~ 500 ft. upstream of the Hatchery Rd. bridge, north bank. 22 Comment
  SEINET3909435  Cyperus eragrostis J. P. Smith, Advanced Plant Taxonomy Class 1971-10-9 4990 Humboldt The Mad River above the Fish Hatchery.; 0 Comment
  UC302157  Cypripedium californicum Joseph P. Tracy 1926-6-27 7669 Humboldt Horse Mountain Northern Coast Ranges 1463 Comment
  UC1196445  Cypripedium montanum D. F. Young 1924-4-26 Humboldt near South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC74131  Cystopteris fragilis R. York 1980-5-23 613 Humboldt Near Buck Mtn. 1524 Comment
  HSC97462  Cystopteris fragilis Cara Witte 2007-5-23 103 Humboldt Near Grouse Mountain. Along 4N32. Approximately 0.5 miles south of intersection with 5N04 and 4N32E. 1398 Comment
  RSA137327  Cystopteris fragilis I. L. Wiggins 1957-6-21 14138 Humboldt On east side of road, 1 mile south of Garberville Comment
  SEINET2153799  Cytisus scoparius K. T. Harper 2002-1 2002 -3 Humboldt Redwood Park, near Orick. Comment
  HSC98780  Cytisus scoparius var. scoparius Cara Witte 2008-6-27 768 Humboldt Approximately 1/2 mile north of White Oak Opening on National Forest 1. 1242 Comment
  HSC47796  Dactylis glomerata M. A. Watkins 1978-6-10 3 Humboldt East side of the 7th Street overpass of Hwy 101 Comment
  UC1198471  Datisca glomerata Joseph P. Tracy 1912-8-3 3972 Humboldt in Valley of Van Duzen River (opposite Buck Mountain, Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 762 Comment
  HSC21479  Daucus carota H. D. Sumner 1959-7-20 Humboldt West End Rd. along the Mad River 3 Comment
  CHSC33386  Daucus pusillus J. P. Smith; T. W. Nelson 1977-6-30 9200 Humboldt Samoa Peninsula just east of the drag strip. Comment
  SBBG5180  Daucus pusillus H. and M. Dearing 1939-5-25 3442 Humboldt sand dunes near Samoa Comment
  UC1223154  Delairea odorata Joseph P. Tracy 1942-1-25 17054 Humboldt near Ferndale; along Russ Creek Comment
  HSC94007  Delairea odorata Gordon Leppig 2000-2-15 1283 Humboldt Central Ave. 1/4 mi. N of 101 and Mad River 12 Comment
  HSC97204  Delphinium decorum subsp. tracyi Kiera A. Freeman, Heather J. Perry 2007-6-13 8 Humboldt 1 mi. E of NF1 on FS 5N04 1585 Comment
  HSC89622  Delphinium nudicaule Pat Daly, Rudy Galindo 1988-3-12 5 Humboldt S Fork Trail of Trinity River, trailhead 12.4 mi. up S Fork Rd. from Hwy. 299 457 Comment
  UC184715  Delphinium nudicaule Joseph P. Tracy 1913-6-14 4128 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River, Dinsmore's 762 Comment
  HSC64263  Delphinium nuttallianum J. O. Sawyer, M. A. Ericksen 1979-6-23 3398 Humboldt Slopes below Mill Creek Lakes 1585 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
  UC249645  Delphinium nuttallianum Joseph P. Tracy 1922-4-30 6029 Humboldt near Willow Creek; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1196343  Delphinium trolliifolium Joseph P. Tracy 1908-6 2774 Humboldt opposite Buck Mountain; Northern Coast Ranges, valley of Van Duzen River 762 Comment
  POM299320  Delphinium trolliifolium Lester Rowntree 1938-6-4 s.n. Humboldt Stone Lagoon near Orick Comment
  RSA24198  Delphinium trolliifolium Carl B. Wolf 1941-3-1 9975 Humboldt Kneeland Prairie, 1/8 mile SE of Kneeland School. 762 Comment
  HSC9590  Deschampsia cespitosa D. E. Anderson 1961-9-30 1843 Humboldt Divide Lake. 915 Comment
  POM207102  Deschampsia cespitosa Jos Burtt Davy, W. C. Blasdale 6194 Humboldt Lake Mendocino Comment
  UCD61160  Deschampsia cespitosa Joseph P. Tracy 1942-6-15 17128 Humboldt Englewood, Natural prairie, near Redcrest resort. 91 Comment
  CAS-BOT-BC194294  Deschampsia cespitosa subsp. cespitosa H. S. Yates 1936-6-16 5677 Humboldt 1 mile northeast of Samoa 3 Comment
  CAS-BOT-BC201770  Deschampsia elongata L. R. Abrams 1918-6-16 7153 Humboldt Willow Creek Comment
  HSC98585  Deschampsia elongata Cara Witte 2008-7-30 964 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 1/2 mile from intersection with National Forest 1. 1589 Comment
  CAS-BOT-BC201767  Deschampsia elongata Catherine Best 1990-6-28 1395 Humboldt In the Forest Service Camp near Lassic [Lassics] Comment
  UC855123  Dicentra formosa Elizabeth Parsons Hawver Jun 1915 Humboldt Carlotta Comment
  UC1362285  Dicentra formosa Kingsley R. Stern 1964-6-15 2108 Humboldt ca 2.5 mi s Fortuna (0.5 mi e on Drake Hill Road, on Newman property) Comment
  CAS-BOT-BC402407  Dicentra formosa subsp. formosa L. R. Abrams; R. Bacigalupi 1922-6-25 8284 Humboldt Big Lagoon south of Orick Comment
  HSC32382  Dichelostemma capitatum subsp. capitatum Linda M. Barker 1974-5-11 182 Humboldt Redwood National Park, Bald Hills Rd., Gans Prairie 549 Comment
  HSC60041  Dichelostemma capitatum subsp. capitatum M. A. Baker 1978-5-6 480 Humboldt 2 km. W of Weitchpec along Klamath River. Comment
  CAS-BOT-BC501013  Dichelostemma ida-maia Volney Rattan 1879-1-1 s.n. Humboldt Klamath Comment
  SEINET3885614  Dichelostemma ida-maia D. W. McNeal 1977-6-6 2045 Humboldt Dry shaded hillside above the Bridgeville-Kneeland Rd., 0.4 mi. N. of Hwy. #36.; 0 Comment
  SEINET8476733  Dichelostemma ida-maia M. J. Williams 1969-5-23 s.n. Humboldt Bald Hills. 152 Comment
  HSC60040  Dichelostemma multiflorum M. A. Baker 1977-6-6 373 Humboldt Hoopa Comment
  HSC35967  Dichelostemma multiflorum Thomas W. Nelson, Jane P. Nelson, James Nelson 1975-6-21 1951 Humboldt Hwy. 36, 5 mi. E of Bridgeville Comment
  SEINET3885674  Dichelostemma pulchellum James P. Smith 1973-5-5 6485 Humboldt Roadside and streamside along Cook and Green Pass.; 0 Comment
  POM48082  Digitalis purpurea J. B. Feudge 1923-7-18 105 Humboldt Eureka. About Humboldt Bay. 6 Comment
  CAS-BOT-BC151742  Diplacus kelloggii Milo S. Baker 1925-4-7 241 a Humboldt Blue Lake Comment
  HSC49807  Dipsacus fullonum R. York 1979-5-23 314 Humboldt Along shore of Humboldt Bay Comment
  POM277212  Disporum hookeri var. hookeri Lyman Benson 1929-7-16 1842 Humboldt Weott Ranger Station. S Fork Eel River. Comment
  JEPS61836  Disporum smithii W. L. Jepson 1932-7-27 16477 Humboldt Bull Creek Comment
  SDSU11887  Disporum smithii Harvey 1938-8-13 2243 Humboldt Humbolt State Redwood Park Comment
  SEINET3885741  Disporum smithii Victor Duran 1933-5-12 3413 Humboldt Dyerville, South Fork of the Eel River.; 0 Comment
  CHSC31322  Distichlis spicata Mark Stopher 1980-6-4 83 Humboldt Along Elk River near Rte 101 bridge. 1 Comment
  HSC2192  Distichlis spicata J. P. Tracy 1933-8-22 12989 Humboldt Mouth of Eel River. 3 Comment
  UC38072  Distichlis spicata Joseph Burtt Davy and Walter C. Blasdale 1899-7-30 6202 Humboldt near Ferndale; ; Ferndale, Humboldt Co. Comment
  SEINET201055 Image available Dodecatheon alpinum Joseph P. Tracy 1932-7-14 10565 Humboldt Trinity Summit, Corral Prarie. 1585 Comment
  UC1198617  Dodecatheon alpinum Joseph P. Tracy 1933-7-16 12782 Humboldt McKay Camp South Fork Mountain, McKay Camp. Comment
  UC1198620  Dodecatheon hendersonii Joseph P. Tracy 1922-5-14 6046 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 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
  HSC17866  Dodecatheon hendersonii Francis Winter 1960-4-24 Humboldt Pine Ridge Summit, 3 mi. NE of Redwood Creek Ranch 854 Comment
  RSA654125  Downingia yina Beecher Crampton 1956-6-26 3651 Humboldt Margin of Snow's Lake, 3.5 miles east of Seigler Springs Comment
  HSC59494  Drosera rotundifolia M. A. Ericksen 1979-4-21 213 Humboldt Big Lagoon County Beach, ca. 90 yards from the Rd. in center of bog. Comment
  RSA0011677  Drosera rotundifolia C. B. Wolf 1927-8-22 778 Humboldt Big Lagoon. Comment
  CAS-BOT-BC159615  Drymocallis glandulosa var. glandulosa Doris K. Kildale 1927-5-15 3249 Humboldt Petrolia Comment
  UC1198693  Drymocallis glandulosa var. glandulosa H. E. Parks and Joseph P. Tracy 1931-5-17 10085 Humboldt Trinity River at Willow Creek; Northern Coast Ranges, Trinity River at Willow Creek 152 Comment
  UC492178  Drymocallis lactea var. austiniae Joseph P. Tracy Jul 16 1930-Jul 19 1930 8976 Humboldt South Fork Mountain Northern Coast Ranges (wet meadow at McKay Camp) 1676 Comment
  HSC99091  Drymocallis lactea var. lactea Cara Witte 2008-7-16 911 Humboldt Board Camp Mountain. Forest Service Road 4N38. 1/2 mile south of intersection with National Forest 1. 1409 Comment
  JEPS60039  Dryopteris arguta W. L. Jepson 1932-8-2 16473 Humboldt Deerfoot Vale Bull Creek Flat Comment
  RSA46701  Dryopteris arguta Doris K. Kildale 1928-2-19 4264 Humboldt Little River near Trindad Comment
  UC1239775  Dryopteris expansa Joseph P. Tracy 1931-3-15 9286 Humboldt on Van Duzen River Strong's Station; Northern Coast Ranges 91 Comment
  UCSB30621  Dryopteris expansa Edwards, David 1974-9-2 Humboldt ca. 5ft N of dirt road, ca. 350 ft from its junction with Fickle Hill Rd., Arcata. 106 Comment
  HSC26296  Dudleya farinosa T. O. Osborne 1970-9-16 39 Humboldt Blank Rock, 1/4 mi. W Trinidad Head Comment
  HSC26394  Dudleya farinosa T. O. Osborne 1970-9-16 29 Humboldt Trinidad Bay, Prisoner Rock Comment
  CAS-BOT-BC113802  Dulichium arundinaceum Joseph Prince Tracy 1938-9-25 16173 Humboldt Dense masses in shallow water, Bald Mountain, at Lake Prairie. 1066 Comment
  HSC9660  Echinochloa crus-galli H. E. Parks 24213 Humboldt Trinidad, Spruce Cove. Comment
  UC1056037  Echinochloa crus-galli H. E. Parks 24213 Humboldt Spruce Cove Comment
  UC175612  Echinochloa crus-galli Joseph P. Tracy 1911-7-11 3507 Humboldt Hoopa Valley; Northern Coast Ranges, Hoopa Valley 152 Comment
  CAS-BOT-BC113642  Eleocharis acicularis Doris K. Kildale 1931-5-16 s.n. Humboldt Snow Camp Comment
  CAS-BOT-BC113643  Eleocharis acicularis Doris K. Kildale 1928-7-29 5932 Humboldt Kinman Pond, Bear River Ridge. Comment
  UC213331  Eleocharis macrostachya Joseph P. Tracy 1920-8-29 5396 Humboldt Little River, borders of lagoon Northern Coast Ranges 6 Comment
  CAS-BOT-BC113113  Eleocharis obtusa Henry M. Pollard 1946-8-22 s.n. Humboldt Ullathorne Riffle, Klamath River, Orleans region Comment
  CAS-BOT-BC113112  Eleocharis obtusa Henry M. Pollard 1946-8-16 s.n. Humboldt Along river near Orleans Comment
  UC1103650  Eleocharis parishii Joseph P. Tracy 1927-5-14 8010 Humboldt near S fork Trinity River Valley 182 Comment
  POM126088  Eleocharis parvula Joseph P. Tracy 1924-8-3 6744 Humboldt Stone Lagoon Comment
  UC666916  Eleocharis suksdorfiana Joseph P. Tracy 1932-7-14 10559 Humboldt Trinity Summit, Corral Prairie 1584 Comment
  HSC39716  Elymus X vancouverensis D. E. Anderson, J. P. Smith 1971-6-28 - 1262 Humboldt 2.5 mi. S of Blue Lake along the Mad River Comment
  HSC76198  Elymus glaucus Overton, Butler 1979-8-2 12509 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC212860  Elymus glaucus Joseph P. Tracy 5282 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UCD62258  Elymus glaucus Freed W. Hoffman 1946-5-19 1729 Humboldt Mattole River. Comment
  UCD62294  Elymus glaucus A. H. Murphy 1947-5-12 Humboldt Roadside near Carlotta. Comment
  CAS-BOT-BC203475  Elymus glaucus subsp. glaucus Joseph P. Tracy 1925-7-5 7167 Humboldt High Prairie, on Bald Mountain 1066 Comment
  HSC9726  Elymus mollis subsp. mollis J. W. Johnson 1962-4-29 1297 Humboldt W.M. Lanphere Farm, Samoa Peninsula, Arcata. Comment
  UC189196  Elymus multisetus Joseph P. Tracy 1912-7-26 3839 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC102236  Elymus ponticus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1160 Humboldt Andy's Camp 1564 Comment
  UC717990  Elymus trachycaulus David D. Keck 1944-7-11 5491 Humboldt 3 mi ne Capetown 152 Comment
  HSC38425  Elymus triticoides D. E. Anderson, J. P. Smith 1971-6-14 - 1045 Humboldt Along railroad tracks at P.G.&E. power plant S of Eureka. Comment
  SEINET200980  Elytrigia repens J. P. Tracy 1948-7-24 18077 Humboldt Eureka 30 Comment
  RSA43871  Epilobium angustifolium var. macrophyllum H. M. Pollard 1947-8-30 s.n. Humboldt North Road along Klamath River near Redcap Creek. Orleans region. Comment
  HSC41821  Epilobium canum subsp. latifolium Thomas W. Nelson, Jane P. Nelson 1977-8-6 3722 Humboldt Between Blanket Creek and Bear Creek just below Blanket Rock 1494 Comment
  UC205233  Epilobium canum subsp. latifolium Joseph P. Tracy 1919-9-23 5288 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  HSC102032  Epilobium ciliatum M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-13 935 Humboldt Patterson Meadows 1555 Comment
  JEPS31484  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1937-8-12 15649 Humboldt Snow Camp 1402 Comment
  UC562507  Epilobium ciliatum subsp. glandulosum Joseph P. Tracy 1933-8-30 13028 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  HSC16358  Epilobium ciliatum subsp. watsonii D. E. Anderson 1961-9-2 1764 Humboldt 3 mi. S of Cape Mendocino 3 Comment
  HSC55074  Epilobium hallianum G. L. Clifton, Griswold 1979-7-31 11675 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  UC205637  Epilobium hallianum Joseph P. Tracy 1919-9-18 5234 Humboldt Trinity Summit (Northern Coast Ranges) Comment
  UC505112  Epilobium hallianum Joseph P. Tracy 1931-6-28 9589 Humboldt lower foothills of nw slope Northern Coast Ranges, Buck Mountain 762 Comment
  POM247176  Epilobium hornemannii subsp. hornemannii Joseph P. Tracy 1935-7-24 14183 Humboldt Trinity Summit, near ranger station 1829 Comment
  UC562513  Epilobium hornemannii subsp. hornemannii Joseph P. Tracy 1935-7-24 14183 Humboldt near Ranger Station (along streamlet); Trinity Summit 1828 Comment
  UCD106767  Epilobium septentrionale R. N. Bowman 1971-4-12 51 Humboldt Ca. 1.7 miles SE of Myers Flat off of Highway 101. Ca. 4 feet above S fork of Eel River on E bank. 1066 Comment
  UC204002  Epilobium torreyi Joseph P. Tracy 1918-7-6 5050 Humboldt near Humboldt-Mendocino County Line; Northern Coast Ranges, South Fork of Eel River 152 Comment
  CAS-BOT-BC58003  Equisetum Doris K. Kildale 1925-8-18 1253 Humboldt McKay's Prarie - Trinity Summit. 1524 Comment
  CAS-BOT-BC56970  Equisetum arvense Henry M. Pollard 1944-9-1 s.n. Humboldt Near Orleans Comment
  HSC61024  Equisetum arvense Jimerson, J. Pageau 1979-8-10 723 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa 1464 Comment
  HSC98770  Equisetum arvense Cara Witte 2007-8-8 622 Humboldt Buck Flat. Intersection of National Forest 1 and Forest Service Road 5N01. 1547 Comment
  UC667937  Equisetum arvense Joseph P. Tracy 1937-7-2 15391 Humboldt ne of Hawkins Bar Happy Camp Mt.; Trinity Summit Range 1280 Comment
  UC1239789  Equisetum hyemale subsp. affine Joseph P. Tracy 1926-9-6 7795 Humboldt near S. Fork Trinity River Valley; Northern Coast Ranges 182 Comment
  CAS-BOT-BC57230  Equisetum laevigatum H. E. Parks; Joseph P. Tracy 1927-4-24 7925 Humboldt Eureka 6 Comment
  HSC70639  Equisetum telmateia subsp. braunii R. York 1980-5-18 594 Humboldt Near Black Mtn 792 Comment
  RSA21604  Equisetum telmateia var. braunii C. B. Wolf 1937-9-14 9351 Humboldt North Coast Range, Lord Ellis Road, 7.6 miles east of Blue Lake. 213 Comment
  HSC78606  Erechtites glomeratus L. P. Janeway 1984-5-16 793 Humboldt N Spit of Humboldt Bay, W side of Samoa Rd. just N of the boat ramp 3 Comment
  CAS-BOT-BC299913  Erechtites minimus Carl B. Wolf 1927-8-22 769 Humboldt Big Lagoon Comment
  CAS-BOT-BC299912  Erechtites minimus K. Boynton 1920-9-28 s.n. Humboldt 6 mi. south of Ferndale Comment
  POM318607  Erechtites minimus Patricia Wilder 1968-8-21 4379 Humboldt Big Lagoon Park, just west of U.S. 101 15 Comment
  UC1198999  Eremocarpus setiger Joseph P. Tracy 1911-7-8 3452 Humboldt near mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  HSC57958  Eremogone congesta G. L. Clifton, Griswold 1979-7-31 11658 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC81904  Eremogone congesta Thomas W. Nelson 1979-7-11 4994 Humboldt N Trinity Mtn. and ridge to E. 1829 Comment
  HSC22165  Ericameria greenei J. O. Sawyer 1968-9-27 730 Humboldt Near Waterdog Lakes and N Trinity Mtn. 1768 Comment
  HSC58146  Ericameria greenei Gilbert Muth 1979-8-1 12185 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1781 Comment
  CAS-BOT-BC293487  Erigeron aliceae Joseph P. Tracy 1930-7-18 9035 Humboldt South Fork Mountain. Near McKay Camp 1676 Comment
  UC1223013  Erigeron aliceae Joseph P. Tracy 1949-8-11 18487 Humboldt 1.5 mi se of Snow Camp (along creek running through fir woods near the C. M. Preston place) 1463 Comment
  UCR51767  Erigeron bloomeri var. nudatus H. E. Parks 1937-1 24- 22 Humboldt North Coast, Spruce Cove, Trinidad 61 Comment
  CAS-BOT-BC296111  Erigeron foliosus var. confinis Joseph P. Tracy 1935-6-23 13967 Humboldt French Camp Ridge 1066 Comment
  UC1223139  Erigeron foliosus var. confinis Joseph P. Tracy 1950-8-8 19291 Humboldt area Granite Rock; Trinity Summit, Crogan Hole 1676 Comment
  RSA90920  Erigeron foliosus var. confinis F. W. Peirson 1926-7-13 7049 Humboldt River bottom, near Blue Lake, Mad River Comment
  UC673210  Erigeron foliosus var. confinis Lincoln Constance and Reed C. Rollins 1942-5-12 2896 Humboldt 1 mi s Somes Bar (bluffs at junction of rivers); Klamath-Siskiyou region, Klamath and Salmon rivers 152 Comment
  UC594158  Erigeron glaucus S. K. Harris 1936-6-15 3380 Humboldt Trinidad Head. Comment
  HSC93533  Erigeron glaucus Gordon Leppig 1998-6-22 840 Humboldt Dry Lagoon State Park 2 Comment
  UC1199404  Erigeron klamathensis F. A. Graham and Joseph P. Tracy 1932-7-17 10696 Humboldt head Hors Linto Creek (rocky places at the lower end, Devils Hole); , Devils Hole 1524 Comment
  CAS-BOT-BC214589  Erigeron philadelphicus Mrs. E. C. Sutliffe 1927-6-1 s.n. Humboldt Bull Creek Comment
  POM357558  Erigeron philadelphicus B. C. Templeton 1964-6-13 10184 Humboldt Along old Hwy. 101 near Trinidad Comment
  JEPS41380  Erigeron philadelphicus var. philadelphicus Lincoln Constance 1934-5-26 685 Humboldt s end Dyerville Bridge; South Fork Eel River 45 Comment
  UC153939  Erigeron philadelphicus var. philadelphicus J. P. Tracy 1910-10-1 3162 Humboldt immediate vicinity Eureka 0 Comment
  UC1223008  Erigeron robustior Joseph P. Tracy 1951-6-26 19585 Humboldt extreme head of Redwood Creek; , Board Camp Mountain Comment
  CAS-BOT-BC224255  Eriodictyon californicum Doris K. Kildale 1925-6-21 747 Humboldt Briceland Bridge 1/2 mi. west of Garberville 114 Comment
  HSC13527  Eriodictyon californicum P. J. Zinke 1950-10-9 182 Humboldt E slope of King Peak 1159 Comment
  HSC70699  Eriogonum compositum Gail Newton 1980-7-15 1553 Humboldt Near Sims Mtn. 1311 Comment
  HSC32328  Eriogonum compositum var. compositum D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5669 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge. Comment
  HSC97398  Eriogonum compositum var. compositum Benjamin Hart, Erin Lonergan 2007-6-11 4 Humboldt 14.1 mi. S of Hwy. 299 on NF1 1524 Comment
  LA206930  Eriogonum latifolium Carl Epling; Mrs. Epling 1935-8-15 sn Humboldt Arcata Spit Comment
  LA206936  Eriogonum latifolium Carl Epling; Mrs. Epling 1935-8-15 sn Humboldt Arcata Spit Comment
  UC1198150  Eriogonum latifolium Joseph P. Tracy 1938-6-17 15960 Humboldt near ocean shore (s of point of Cape); Cape Mendocino 3 Comment
  RSA273152  Eriogonum latifolium Glenn A. Gorelick 1967-6-11 s.n. Humboldt Samoa sand dunes, near Arcata Comment
  RSA65139  Eriogonum latifolium F. W. Peirson 1926-7-14 7065 Humboldt Table Bluff Lighthouse, south of Eureka. Comment
  RSA766119  Eriogonum latifolium Arthur Menzies 1961-9-3 s.n. Humboldt Samon Comment
  HSC66867  Eriogonum lobbii M. A. Baker 1980-7-24 3202 Humboldt Near Orleans Mtn. 1625 Comment
  CAS-BOT-BC259538  Eriogonum luteolum var. luteolum Joseph P. Tracy 1938-8-14 16120 Humboldt South Fork of Trinity River: mountain slopes west of its mouth 304 Comment
  UC203955  Eriogonum nudum var. nudum Joseph P. Tracy 1918-7-3 4987 Humboldt Wilder Ridge Northern Coast Ranges, Kings Peak Range, Wilder Ridge 762 Comment
  RSA33411  Eriogonum nudum var. oblongifolium Doris K. Kildale 1927-7-1 3621 Humboldt Alton Hill Comment
  CAS-BOT-BC269864  Eriogonum nudum var. pubiflorum V. Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  HSC17370  Eriogonum umbellatum var. goodmanii J. Wendell Howe 1934-7-21 1314 Humboldt Horse Mtn., Cold Springs Comment
  CHSC80057  Eriogonum umbellatum var. nelsoniorum L. P. Janeway; B. Castro 1996-8-4 5060 Humboldt High North Coast Ranges. Along Titlow Hill Road (Road #1) about 0.3 mi west of the spur road to top of Horse Mountain. 1341 Comment
  HSC95795  Eriogonum umbellatum var. nelsoniorum James L. Reveal 2001-7-18 8345 Humboldt Along FS Rd. 1 at S end of Whiting Ridge, 0.5 mi. WNW of High Salt Ground, 9.3 mi. W of Hyampom 1296 Comment
  HSC55177  Eriogonum umbellatum var. stellatum Gilbert Muth 1979-8-1 12182 Humboldt Near Red Cap Prairie, close to the town of Hoopa 1780 Comment
  JEPS56129  Eriogonum vimineum W. L. Jepson 1932-7-25 16395 Humboldt Old Camp Grant Eel River, Old Camp Grant 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
  HSC5592  Eriophyllum lanatum D. E. Anderson 1963-3-16 2384 Humboldt Scotia Bluffs Comment
  HSC56464  Eriophyllum lanatum var. achilleoides Griswold, Butler 1979-7-12 7262 Humboldt Near Cedar Creek, close to the town of Willow Creek 1158 Comment
  UC90307  Eriophyllum lanatum var. achilleoides W. W. Price 1890-7-1 Humboldt Mad River Comment
  JEPS17991  Eriophyllum lanatum var. achilleoides George B. Rossbach 1955-6-10 533 Humboldt 2 mi no of Stephens Redwood Grove (Route 101 along s fork of Eel River, in redwood forest area); South fork of Eel River Comment
  HSC60054  Eriophyllum lanatum var. arachnoideum M. A. Baker 1978-5-20 567 Humboldt W side of the Klamath River along Hwy. 96 Comment
  UC129578  Eriophyllum lanatum var. arachnoideum Joseph Burtt Davy and Walter C. Blasdale Jun 16 1899-Jan 1 1900 5563 Humboldt Alton North-Western California, Alton Comment
  UC1173658  Eriophyllum lanatum var. grandiflorum Joseph P. Tracy 1939-4-29 16241 Humboldt at mouth of Slate Creek (along Klamath River); Klamath River, Slate Creek 121 Comment
  UC165860  Eriophyllum staechadifolium Joseph P. Tracy 1907-7-4 2580 Humboldt rocky bluffs along coast near Trinidad; Northern Coast Ranges 15 Comment
  UC176463  Eriophyllum staechadifolium Joseph P. Tracy 1913-7-13 4361 Humboldt Patrick's Point Patrick's Point (bluffs facing ocean) 30 Comment
  HSC87150  Erysimum capitatum Pat Daly, Rudy Galindo 1988-4-30 106 Humboldt Titlow Rd., 1.3 mi. from Hwy. 299 1000 Comment
  UC1199175  Erysimum capitatum Joseph P. Tracy 1922-5-29 6078 Humboldt head of South Yager Creek Northern Coast Ranges 762 Comment
  CAS-BOT-BC41569  Erysimum capitatum Doris K. Kildale 1926-4-18 1769 Humboldt McLellan Mountain. 822 Comment
  JEPS53584  Erysimum menziesii Joseph P. Tracy 1904-4-24 2031 Humboldt sand dunes of ocean beach Northern Coast Region, Humboldt Bay Comment
  UC1034752  Erysimum menziesii G. B. Rossbach 1955-6-10 596 Humboldt depression in coastal dunes near Humboldt Bay lighthouse (betw. Fairhaven and end of sandy point off Eureka) Comment
  HSC57884  Erysimum perenne Walter Overton, Marvin Butler 1979-7-31 11428 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC71223  Erythronium californicum Thomas W. Nelson 1977-4-20 3331 Humboldt Along USFS Road 1N15 at summit 915 Comment
  CAS-BOT-BC504305  Erythronium californicum Volney Rattan 1882-6-1 s.n. Humboldt Unspecified Comment
  RSA168934  Erythronium californicum Joseph P. Tracy 1950-4-20 18616 Humboldt Buck Mountain, lower foothills of its northwest slope. 2 miles west of Dinsmores. 762 Comment
  HSC97573  Erythronium grandiflorum C. Witte 2007-5-18 38 Humboldt Grouse Mountain Lookout. 1644 Comment
  UCSB28100  Erythronium oregonum Phelps, M. 1972-3-19 Humboldt 7.5 mi. along Salmon Creek Rd. from Hwy. 101, 100 yds. from road, Miranda 304 Comment
  UC1134597  Erythronium revolutum R. Stahelin 1933-5-17 Humboldt Kneeland Prairie China Flat Quadrangle Comment
  CAS-BOT-BC403036  Eschscholzia californica Doris K. Kildale 1926-5-9 1981 Humboldt Kneeland Prairie - summit 853 Comment
  HSC26453  Eschscholzia californica T. O. Osborne 1970-7-18 3 Humboldt Sugarloaf Rock, Cape Mendocino 76 Comment
  HSC16115  Eucalyptus globulus J. W. Bosworth 1965-5-14 51 Humboldt 1 mi. N of Fairhaven on Samoa Comment
  HSC58763  Eucephalus ledophyllus Terry Griswold 1979-7-26 10161 Humboldt Near Salmon Mtn., close to the town of Forks of Salmon 2058 Comment
  UCD132295  Euchiton sphaericus Joseph P. Tracy 1936-8-23 15162 Humboldt Carlotta. 30 Comment
  HSC75354  Euonymus occidentalis J. O. Sawyer, M. A. Ericksen 1980-7-18 3642 Humboldt Along FS Rd. 10N02, S of Middle Fork of Mill Creek Comment
  UC165805  Euonymus occidentalis var. occidentalis Joseph P. Tracy 1908-6 2866 Humboldt opposite Buck Mt.; Northern Coast Ranges, Van Duzen R. Valley 762 Comment
  SEINET11850490  Eupatorium occidentale J. P. Tracy 1950-1 19223 Humboldt Friday Ridge 1219 Comment
  JEPS52406  Euphorbia peplus Joseph P. Tracy 1926-5-15 7473 Humboldt Eureka; Northern Coast Ranges 0 Comment
  HSC36589  Euphorbia peplus John Rehling 1975-5-4 55 Humboldt H.S.U. campus Comment
  UC1198977  Euphorbia spathulata Joseph P. Tracy 1930-6-15 8761 Humboldt Dobbyn Creek 152 Comment
  UC198735  Euphorbia spathulata Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  CAS-BOT-BC312208  Eurybia radulina Doris K. Kildale 1929-8-4 8780 Humboldt Mattole River at Union Mattole Comment
  CAS-BOT-BC312211  Eurybia radulina Doris K. Kildale 1925-8-21 1312 Humboldt Head of South Yager Creek 914 Comment
  HSC35991  Eurybia radulina Thomas W. Nelson, James Nelson 1975-9-1 2189 Humboldt High Rock State Park Comment
  UC1173675  Eurybia radulina Joseph P. Tracy 1939-8-5 16380 Humboldt Dinsmores, Van Duzen River, opposite Buck Mt. Van Duzen River 762 Comment
  HSC22607  Euthamia occidentalis J. P. Smith, J. O. Sawyer 1971-10-16 5050 Humboldt 2.1 mi. E of Carlotta on Calif. 36 Comment
  UC1152015  Festuca arundinacea Joseph P. Tracy 1951-6-21 19522 Humboldt back of Everett Beck house; Hydesville Comment
  HSC94183  Festuca californica Ottoson 1999-7-13 Humboldt Above Showers Pass towards Kneeland from Hwy. 36. Soldiers Grove. Eaton Rough Mtn Area. Comment
  UC207580  Festuca californica Joseph P. Tracy 1916-4-30 4683 Humboldt Table Bluff, around Humboldt Bay Northern Coast Ranges, Humboldt Bay 121 Comment
  RSA273307  Festuca californica var. californica Thomas W. Nelson, Jane P. Nelson 1976-6-16 2740 Humboldt West of Alder Springs along 2S07. 1524 Comment
  UC187110  Festuca elmeri Joseph P. Tracy 1908-6 2741 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  HSC102208  Festuca idahoensis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-4 1123 Humboldt Andy's Camp 1564 Comment
  UC70909  Festuca idahoensis Joseph Burtt Davy and Walter C. Blasdale 1899-6-27 5877 Humboldt Martins Ferry Comment
  CAS-BOT-BC278810  Festuca occidentalis W. R. Dudley 1899-6-1 s.n. Humboldt Bull Creek & Eel River Comment
  UC187102  Festuca occidentalis J. P. Tracy 1900-5-22 796 Humboldt immediate vicinity Eureka 0 Comment
  UCD66125  Festuca occidentalis P. B. Kennedy 1923-8-23 Humboldt Near Orleans, near top of grade - Red Bluff to Arcata. Comment
  SEINET10559307  Festuca occidentalis Victor Duran 1933-5-11 Duran 3410 Humboldt Van Duzen River, near Bridgeville. Comment
  SEINET200833  Festuca roemeri Joseph P. Tracy 1912-7-26 3868 Humboldt Kneeland Prairie 762 Comment
  CAS-BOT-BC278962  Festuca rubra David D. Keck 1944-7-11 5490 Humboldt 3 mi. N.E. of Capetown 152 Comment
  CAS-BOT-BC278963  Festuca rubra David D. Keck 1948-7-1 5970 Humboldt South side of Big Lagoon Comment
  HSC47790  Festuca rubra Michael A. Watkins 1978-6-10 2 Humboldt Arcata, E side of the 7th Street overpass to Hwy. 101 Comment
  UC187116  Festuca rubra Joseph P. Tracy 1900-7-4 894 Humboldt Humboldt Bay Comment
  UC525639  Festuca rubra Joseph P. Tracy 1927-7-4 8238 Humboldt Lone Star Creek North Coast Ranges, Iaqua District 609 Comment
  UCD66374  Festuca rubra Spadoni; Ottoson 1999-7-13 PDR 114029 9 Humboldt Hills above Showers Pass towards Kneeland from Hwy 36, Soldiers Grove. At Eaten Rough Mtn. area, near Bridgeville. Comment
  CAS-BOT-BC282516  Festuca subbiflora W. R. Dudley 1899-6-20 s.n. Humboldt Bull Creek and Eel River Comment
  HSC38191  Fragaria chiloensis Peter Sorensen 1976-5-28 Humboldt N Spit of Humboldt Bay, S of Samoa Comment
  HSC18615  Fragaria vesca J. J. Wagoner 1965-5-1 25 Humboldt 6 mi. W of Willow Creek along Hwy. 299 Comment
  JEPS44674  Fragaria virginiana Joseph P. Tracy 1932-7-16 10616 Humboldt Corral Prairie; Klamath Mountains, Trinity Summit 1524 Comment
  BLMAR243  Frangula californica subsp. californica Jennifer Anthony-Wheeler 1997-7-24 243 Humboldt Lacks Creek, growing beside rd with ceanothus & rubus 1219 Comment
  CAS-BOT-BC53402  Frangula californica subsp. occidentalis Doris K. Kildale 1925-8-13 1115 Humboldt Willow Creek Flat, Trinity River Valley 152 Comment
  HSC102007  Frangula purshiana subsp. purshiana M. R. Mesler, Robin Bencie, K. A. Wayman, Sydney Carothers 2011-7-12 908 Humboldt Rustic Camp, northwest of Patterson Meadows 1512 Comment
  HSC99392  Frangula purshiana subsp. purshiana K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 41 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  RSA46884  Fraxinus latifolia Doris K. Kildale 1926-4-18 1783 Humboldt Bridgeville on road to McClellan Mt. Comment
  HSC97504  Fritillaria affinis C. Witte 2007-5-22 81 Humboldt Cold Spring. 1/2 mile south of Titlow Hill. 1392 Comment
  CAS-BOT-BC130445  Fritillaria purdyi Doris K. Kildale 1926-3-21 1575 Humboldt Kneeland Prairie Comment
  HSC79511  Galium aparine Kenneth Clark 1980-6-14 695 Humboldt N Fork of Dead Man's Gulch 61 Comment
  HSC89756  Galium aparine M. Roantree 1985-5-30 74 Humboldt E side of Trinidad Head along dirt road Comment
  HSC95075  Galium aparine Andrea Pickart 2002-6-30 133 Humboldt Lanphere Dunes Unit, Humboldt Bay National Wildlife Refuge 0 Comment
  UC1196099  Galium bifolium Joseph P. Tracy 1939-7-9 16331 Humboldt Snow Camp 1402 Comment
  UC602510  Galium bolanderi Joseph P. Tracy 1935-7-29 14339 Humboldt exposed places near Ranger Station; Trinity Summit 1828 Comment
  JEPS52848  Galium muricatum Lauramay T. Dempster and G. L. Stebbins 1963-7-10 3858 Humboldt 6.8 mi w mouth of Bull Creek; Bull Creek (settlement) 91 Comment
  UC169074  Galium muricatum Harley P. Chandler 1901-5-31 1296 Humboldt The Swag Hupa Indian Reservation, Hoopa Mtn. 1097 Comment
  UC1196102  Galium parisiense Joseph P. Tracy 1916-6-19 4719 Humboldt at Forks of Dobby Creek Northern Coast Ranges 182 Comment
  OBI9919  Galium parisiense Rimo Bacigalupi, G. T. Robbins 1954-6-28 4654 Humboldt Along hwy, high above Trinity River, 7.4 mi N of Hoopa, 4.6 mi S of Weitchpec. Six Rivers natl Forest Comment
  SEINET11117326  Galium parisiense Unknown 1913-1 4083 Humboldt Rogers ranch, below Bridgeville on Van Duzen River, on dry rocky slopes. Altitude 500 ft. Comment
  UC602511  Galium porrigens Joseph P. Tracy 1926-4-11 7406 B Humboldt Bridgeville 198 Comment
  JEPS52748  Galium porrigens var. porrigens Lauramay T. Dempster and G. L. Stebbins 1963-7-10 3863 Humboldt 4.2 mi n Redway (along US 101, w-facing slope above Eel River) 91 Comment
  HSC90645  Galium trifidum Gail Newton 1982-6-1 3570 Humboldt Elk River Wildlife Area, Eureka. Comment
  UC602542  Galium trifidum Joseph P. Tracy 1927-7-17 8273 Humboldt lower w foothills of Chaparral Mountain; North Coast Ranges, Three Cabins 457 Comment
  HSC41276  Garrya buxifolia Brad Klipfel 1974-6-25 430 Humboldt Horse Mtn. Comment
  HSC41286  Garrya buxifolia Brad Klipfel 1974-7-27 480 Humboldt Horse Mtn. near Indian Butte Comment
  HSC62874  Garrya elliptica J. M. DiTomaso 1979-5-20 1059 Humboldt Above College Cove at Elks Head, 1 mi. N of Trinidad. Comment
  HSC8390  Garrya elliptica C. O. Baker 1962-3-22 3 Humboldt 2 mi. S of Trinidad along old Hwy. 101 122 Comment
  HSC91891  Garrya elliptica E. Mackey 1986-7-21 Humboldt Patrick's Point State Park; Wedding Rock Trail Comment
  RSA183514  Garrya elliptica R. I. Bonn 1965-3-5 3 Humboldt Four miles west of Arcata on Lanphere Road. Comment
  SEINET3890980  Garrya elliptica C. Davidson 2011-1-26 11826 Humboldt Moonstone Beach, north of McKinleyville.; 0 Comment
  UC1196886  Garrya elliptica Joseph P. Tracy 1921-1-23 5413 Humboldt near Lindsay Creek (hillside on Mad River); Northern Coast Region 30 Comment
  UC630637  Garrya elliptica Joseph P. Tracy 1939-3-19 16203 Humboldt near Blue Slide (on Van Duzen River, Root Grade); Van Duzen River 91 Comment
  CAS-BOT-BC182149  Garrya fremontii Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  CAS-BOT-BC182167  Garrya fremontii Clarence R. Quick 1959-7-24 59 -29 Humboldt Bee Mt., ca. 12 miles southwest of Orleans Comment
  HSC33149  Garrya fremontii Thomas W. Nelson, J. Cole, Brad Klipfel 1974-5-8 1247 Humboldt Horse Mtn. area, E of microwave tower 1220 Comment
  HSC43109  Garrya fremontii Brad Klipfel 1975-5-30 650 Humboldt Horse Mtn. Comment
  HSC8394  Garrya fremontii J. Wendell Howe Apr 1931 102 Humboldt Kneeland Prairie Comment
  UC484079  Garrya fremontii Carl B. Wolf 1930-10-24 Humboldt 1 mi above mouth of Slate Creek (along Klamath River); Klamath River 243 Comment
  UCSB72516  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
  HSC49710  Gastridium phleoides J. O. Sawyer 1977-7-1 2991 Humboldt Aikens campground. Comment
  UC1103734  Gastridium ventricosum Joseph P. Tracy 1913-7-20 4380 Humboldt at Berry's ranch Redwood Creek; Northern Coast Ranges, Redwood Creek 304 Comment
  HSC73068  Gaultheria ovatifolia M. A. Baker 1980-6-16 1953 Humboldt Near Onion Mtn. 1280 Comment
  JEPS66600  Gaultheria ovatifolia Joseph P. Tracy 1926-6-27 7670 Humboldt Horse Mountain; Northern Coast Ranges, Horse Mountain 1463 Comment
  UC562736  Gaultheria ovatifolia Joseph P. Tracy Jul 16 1930-Jul 19 1930 9022 Humboldt near McKay Camp (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC58913  Gaultheria shallon Alice Eastwood 1907-4-21 20 Humboldt Port Trinidad Comment
  CAS-BOT-BC58914  Gaultheria shallon Elizabeth Parsons Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  HSC7806  Gaultheria shallon A. E. Inman 1962-5-25 Humboldt Mad River, Lindsay Creek jct., N bank Comment
  HSC98781  Gaultheria shallon Cara Witte 2008-6-27 771 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1365 Comment
  POM285359  Gaultheria shallon Lyman Benson 1928-7-10 582 Humboldt Dyerville. 61 Comment
  RSA1915  Gaultheria shallon C. B. Wolf 1930-10-30 1043 Humboldt Old Coast Road, 4 mi. so. of Thorn. 305 Comment
  SEINET11993510  Gaultheria shallon F. H. Utech 1986-1 86 -393 Humboldt ca 5 mi N on Kings Peak Rd, from junction with Shelter Cove Rd, near Tolkan Recreation Area 480 Comment
  JEPS27600  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1933-8-30 13046 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  POM223145  Gayophytum diffusum subsp. parviflorum Joseph P. Tracy 1930-7-16 9051 Humboldt North Coast Ranges: South Fork Mountain, open glades along summit near Blake lookout 1738 Comment
  HSC55272  Gayophytum humile Overton, Butler 1979-8-2 12650 Humboldt Near Grogan Hole, close to the town of Hoopa. 1554 Comment
  UC1196957  Gayophytum humile Joseph P. Tracy 1919-9-18 5234 1/2 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  CDA4089  Genista monspessulana T. C. Fuller 1958-6-17 570 -58 Humboldt Lower Mattole. 0 Comment
  HSC34638  Genista monspessulana J. M. Sauser 1975-4-9 3 Humboldt Old Arcata Rd., 3/4 mi. S of junction with Indianola Rd. Comment
  HSC41183  Gentiana sceptrum Robert M. Specht 1976-10-6 546 Humboldt S shore of Big Lagoon on E side of Hwy. 101 Comment
  UC275493  Geranium dissectum Joseph P. Tracy 1925-5-17 6977 Humboldt near The South Fork; Northern Coast Ranges, Trinity River Valley 182 Comment
  HSC24383  Gilia capitata J. O. Sawyer 1970-6-24 2212 Humboldt Ridge on Big Hill Rd., E of Hoopa 1189 Comment
  HSC45990  Gilia capitata J. P. Smith 1973-5-26 6816 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UC1197927  Gilia capitata subsp. capitata Joseph P. Tracy 1939-7-9 16330 Humboldt Snow Camp 1402 Comment
  UC1222733  Gilia capitata subsp. capitata Joseph P. Tracy 1950-6-15 18789 Humboldt 7 mi n Harris (Mail Ridge); n of Harris, Mail Ridge Comment
  BLMAR718  Gilia capitata subsp. pacifica Jennifer Wheeler 2012-6-5 718 Humboldt King range, Mattole beach bluffs 18 Comment
  CAS-BOT-BC226143  Gilia capitata subsp. pacifica Carl B. Wolf 1937-8-11 8901 Humboldt Fleener Creek, 1/2 mi. So. of Centerville 45 Comment
  HSC34612  Gilia millefoliata A. Montalvo 1975-5-24 274 Humboldt Samoa Dunes off Samoa Blvd., across from the boat landing Comment
  BLMAR647  Githopsis specularioides Jennifer Wheeler 2011-6-21 647 Humboldt Lacks Creek, Stormy Saddle Prairie 1158 Comment
  HSC17914  Glaux maritima D. E. Anderson 1962-5-10 2207 Humboldt Lanphere's Comment
  CAS-BOT-BC218434  Glehnia littoralis subsp. leiocarpa Joseph P. Tracy 1933-8-25 12994 Humboldt Centerville Beach, south of mouth of Eel River 6 Comment
  UC642340  Glehnia littoralis subsp. leiocarpa Joseph P. Tracy 1927-6-26 8207 Humboldt Stone Lagoon 6 Comment
  SEINET200359 Image available Glyceria elata J. P. Tracy 1935-7-25 114251 Humboldt Trinity Summit lower end of Brett Hole 1585 Comment
  HSC10079  Glyceria fluitans J. P. Tracy 1933-7-20 19801 Humboldt Arcata bottom 15 Comment
  HSC10089  Glyceria striata J. P. Tracy 1925-6-13 7086 Humboldt Eureka 0 Comment
  CAS-BOT-BC302537  Gnaphalium palustre H. E. Parks; S. T. Parks 1937-8-1 24080 Humboldt Spruce Cove, Trinidad Comment
  UC582519  Gnaphalium palustre Joseph P. Tracy 1930-10-12 99211 Humboldt Eel River, Alton to Fortuna; Eel River 15 Comment
  UC582588  Gratiola ebracteata Joseph P. Tracy 1930-5-18 8697 Humboldt Rohnerville 152 Comment
  JEPS4221  Gratiola ebracteata J. P. Tracy 1908-6-7 2618 Humboldt Butler Valley , Butler Valley (Mad River) 152 Comment
  CAS-BOT-BC304736  Grindelia hirsutula Doris K. Kildale 1926-6-25 2172 Humboldt Big Lagoon Comment
  CAS-BOT-BC304746  Grindelia hirsutula John Thomas Howell 1937-7-31 13720 Humboldt Salt marsh bordering Humboldt Bay at Arcata Comment
  RSA302649  Grindelia hirsutula J. R. Shevock 1972-3-27 1480 Humboldt Cape Mendocino. 46 Comment
  UC1199435  Grindelia hirsutula Joseph P. Tracy 1938-6-17 15955 Humboldt s point of Cape Mendocino Cape Mendocino (in exposed situations near ocean shore) 3 Comment
  SEINET11835894  Grindelia hirsutula var. davyi Unknown 1936-1 13195 Humboldt near Ukiah Comment
  RSA34235  Grindelia stricta var. stricta C. B. Wolf 1927-8-28 1184 Humboldt Eureka Bay, on the road to Arcata. Comment
  UC79899  Hackelia californica Joseph P. Tracy 1937-7-25 15548 Humboldt on Ridge 2 mi e of Groves Prairie; Trinity Summit 1524 Comment
  HSC48108  Hackelia micrantha Brad Klipfel 1973-7-15 203 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC58072  Hackelia micrantha G. L. Clifton, Griswold 1979-8-1 11963 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  UC582620  Hackelia setosa Joseph P. Tracy 1937-7-24 15510 Humboldt 2 mi se of Devil's Hole; Trinity Summit 1584 Comment
  HSC44542  Hastingsia alba Brad Klipfel 1973-7-15 161 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC39985  Hedera helix Linda M. Barker 1976-9-3 1687 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  CAS-BOT-BC306615  Helenium bigelovii Joseph P. Tracy 1937-8-12 15657 Humboldt Snow Camp 1402 Comment
  UC1223097  Helenium bigelovii Joseph P. Tracy 1948-8-15 18153 Humboldt ridge near Elk Camp (trail to Grove's Prairie); Trinity Summit 1493 Comment
  OBI16344  Helenium bolanderi Carl B. Wolf 1937-8-10 9089 Humboldt Big Lagoon, Bog at State Park 6 Comment
  RSA167314  Helenium bolanderi Joseph P. Tracy, H. E. Parks 1950-7-16 11686 Humboldt Park's place, 2 miles N of Trinidad. Comment
  UC525571  Heliotropium curassavicum Joseph P. Tracy 1927-6-26 8210 Humboldt Stone Lagoon Northern Coast Region, Stone Lagoon 6 Comment
  CAS-BOT-BC306181  Hemizonia congesta subsp. congesta David D. Keck 1944-7-11 5497 Humboldt Cape Mendocino 3 Comment
  CAS-BOT-BC309982  Hemizonia congesta subsp. tracyi A. G. Vestal 1937-6-20 s.n. Humboldt 4 miles north of Petrolia Comment
  CAS-BOT-BC309983  Hemizonia congesta subsp. tracyi Richard Spellenberg 1965-6-14 1129 Humboldt Kneeland Prairie, at Kneeland Airport, 6 mi. s.e. of Kneeland Comment
  CAS-BOT-BC309996  Hemizonia congesta subsp. tracyi L. R. Abrams 1916-7-11 6001 Humboldt Between Blocksberg [Blocksburg] and Bridgeville Comment
  LA203693  Hemizonia congesta subsp. tracyi S. K. Harris; 1936-6-20 sn Humboldt above Van Duzen River about 1 mi. W of Bridgeville Comment
  POM228359  Hemizonia tracyi S. K. Harris 1936-6-20 s.n. Humboldt Above Van Duzen River about 1 mile west of Bridgeville Comment
  UC642346  Heracleum lanatum Joseph P. Tracy 1934-7-27 13491 Humboldt near mouth Mad R. 15 Comment
  UC673044  Heracleum lanatum Joseph P. Tracy 1940-9-26 16730 Humboldt s. end Humboldt Bay (Salmon Creek Valley); , Salmon Creek Valley 9 Comment
  HSC56147  Heracleum maximum G. L. Clifton, Terry Griswold 1979-8-1 11981 Humboldt Near Mill Creek Lakes, close to the town of Hoopa 1707 Comment
  RSA453722  Heracleum maximum B. C. Templeton 1964-6-13 10181 Humboldt Along old 101 Highway to Trinidad Comment
  UC1223123  Hesperevax acaulis var. robustior Joseph P. Tracy 1948-5-31 17983 Humboldt 1/2 mi ne Garberville 152 Comment
  HSC1203  Hesperocyparis macrocarpa W. R. Brigham 1962-5-3 25 Humboldt Near N end of old Hwy. 101 N of Big Lagoon Rd. Comment
  OBI12533  Hesperolinon micranthum Joseph P. Tracy 2011-7-6 3356 Humboldt Northern Coast Ranges. Mountain slopes along rd between Three crks and mouth of Willow crk Comment
  JEPS11793  Heterocodon rariflorum W. L. Jepson 1932-7-24 16394 Humboldt Garberville; Tooey Ranch Comment
  HSC40850  Heterocodon rariflorum Thomas W. Nelson 1976-7-9 3000 Humboldt Along W side of ridge S of E peak of Mount Lassic group. 1524 Comment
  CAS-BOT-BC420725  Heuchera micrantha var. diversifolia Lincoln Constance; Reed C. Rollins 1942-5-12 2883 Humboldt Mouth of Bluff Creek, 6 miles NE of Weitchpec 152 Comment
  CHSC40208  Heuchera micrantha var. pacifica L. P. Janeway 1984-5-28 842 Humboldt Benbow State Recreation Area along South Fork Eel River. Slope above old Hwy 101. 121 Comment
  CAS-BOT-BC312394  Hieracium albiflorum Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  HSC57874  Hieracium albiflorum Overton, Butler 1979-7-31 11410 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  HSC79502  Hieracium albiflorum Kenneth Clark 1980-6-14 687 Humboldt N Fork of Deadman's Gulch 107 Comment
  BLMAR217  Hieracium albiflorum Jennifer Anthony-Wheeler 1996-7-9 217 Humboldt Pilot ridge. 1280 Comment
  HSC44135  Hieracium albiflorum Thomas W. Nelson, Jane P. Nelson 1977-7-1 3577 Humboldt Along W side of road N from Alder Spring, head of N Fork of Conley Creek 1463 Comment
  UC1223085  Hieracium albiflorum Joseph P. Tracy 1948-9-5 18181 Humboldt high ridge e Grove's Prairie (near Elk Camp on the Grizzly Camp Road); Trinity Summit 1524 Comment
  SEINET11847768  Hieracium bolanderi J. P. Tracy 1947-1 17849 Humboldt Horse Mountain Comment
  UC165198  Hieracium scouleri Joseph P. Tracy 1908-7-1 2891 Humboldt near Low Gap (ridge between Van Duzen and Mad Rivers, Humboldt and Trinity Counties); Northern Coast Ranges 914 Comment
  HSC90661  Hippuris vulgaris Gail Newton 1982-6-10 3638 Humboldt Elk River Wildlife Area, Eureka Comment
  UCD150387  Hippuris vulgaris William Anderson 1965-6-26 s.n. Humboldt Mad River Slough. Comment
  UCSB25052  Hippuris vulgaris Keefe, Joseph 1967-7-8 Humboldt east side of U.S. Highway 101, turnoff to Crannell Road; north of Eureka 6 Comment
  CAS-BOT-BC280737  Holcus lanatus M. S. Jussel 1931-5-2 125 Humboldt 6 miles from Garberville Comment
  HSC69584  Holcus lanatus R. Kalal 1980-6-8 1 Humboldt Pump Station #1 14 Comment
  UC1056070  Holcus lanatus J. I. Mallory 1955-7-22 117 Humboldt 1 mi n Luke Prairie (Quad 29-B-2); Peavine Ridge 701 Comment
  UC187268  Holcus lanatus Joseph P. Tracy 1911-7-7 3389 Humboldt three mi nw junction of Willow Creek with Trinity River (near Beebe's Ranch); Northern Coast Ranges, nw jct Willow Creek w/Trinity River 914 Comment
  HSC58138  Holodiscus discolor Gilbert Muth 1979-8-1 12156 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC64166  Holodiscus discolor J. O. Sawyer, K. A. Sawyer 1979-6-24 3410 Humboldt Slopes alongside Aikens Creek. 366 Comment
  SDSU9079  Holodiscus discolor D. F. Howe 1961-8-1 3115 Humboldt 3.3 miles north of Trinidad on #101. Comment
  UC666849  Holodiscus discolor Joseph P. Tracy 1935-7-14 14061 Humboldt Horse Mountain 1066 Comment
  UCD18348  Holodiscus discolor K. Esau 1934-5-6 s.n. Humboldt above Fort Seward. 457 Comment
  HSC58607  Hordeum brachyantherum G. L. Clifton, Griswold 1979-7-25 10949 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC682044  Hordeum brachyantherum subsp. brachyantherum G. L. Stebbins Jr. and G. L. Church 1941-5-26 3103 Humboldt Eureka, N end of city Comment
  HSC99121  Hordeum marinum subsp. gussoneanum Cara Witte 2007-6-4 201 Humboldt Cold Spring. 0.5 mile S of Titlow Hill. 1386 Comment
  UC161487  Horkelia californica Joseph P. Tracy 1911-7-12 3526 Humboldt edge of field Northern Coast Ranges, Blue Lake 60 Comment
  UC1198716  Horkelia tridentata subsp. flavescens Joseph P. Tracy 1933-6-13 12593 Humboldt near summit (on rd w from Hoopa to Bair's); Northern Coast Ranges, Hoopa Mt. 914 Comment
  HSC70253  Horkelia tridentata var. flavescens M. A. Baker 1980-6-8 1920 Humboldt Near Buck Flat. 1554 Comment
  HSC41253  Hosackia oblongifolia Brad Klipfel 1974-6-25 443 Humboldt Horse Mtn., near the creek just below the mine Comment
  HSC62746  Hydrocotyle ranunculoides J. M. DiTomaso 1979-5-29 1078 Humboldt Arcata Bottoms, 1.7 mi. W of Alliance Rd. on Lanphere Rd. Comment
  JEPS14235  Hydrocotyle ranunculoides Joseph P. Tracy 1934-7-2 13288 Humboldt mouth of Little R. 3 Comment
  UCSB22187  Hydrocotyle ranunculoides Keefe, Joseph 1967-7-8 Humboldt East side of U.S. Highway 101, turnoff to Crannell Road, north of Eureka 6 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
  HSC53943  Hypericum anagalloides Griswold, Butler 1979-7-11 6982 Humboldt Near Snow Camp Lake, close to the town of Willow Creek. 1393 Comment
  UC902140  Hypericum anagalloides Joseph P. Tracy 1947-6-28 17750 Humboldt Larrabee Valley 731 Comment
  RSA12422  Hypericum androsaemum C. B. Wolf 1934-7-2 5874 Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  RSA60489  Hypericum mutilum John H. Thomas 1949-6-12 899 Humboldt Near Klamath River, 1/2 mile N of town of Orleans Comment
  CDA30714  Hypericum perforatum M. K. Beyers, I. Shepardson 2009-9-13 250 Humboldt Off the eastern side of State Route 254 (Avenue of the Giants), along the Eel river, on and along a steep-cut bank that has been cemented over here, probably to prevent erosion. 0 Comment
  UC1198399  Hypericum perforatum Joseph P. Tracy 1934-7-2 13290 Humboldt Trinidad 3 Comment
  RSA47107  Hypericum perforatum Doris K. Kildale 1925-6-20 711 Humboldt coast above Big Lagoon Comment
  CAS-BOT-BC401303  Hypericum scouleri Doris K. Kildale 1926-7-9 2337 Humboldt Bayside Comment
  UC164814  Hypochaeris glabra J. P. Tracy 1903-8-9 1947 Humboldt Eureka 0 Comment
  CAS-BOT-BC311432  Hypochaeris radicata Alice Eastwood 1923-8-16 12332 Humboldt Carlotta Comment
  HSC99523  Iliamna latibracteata K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-22 186 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC630469 Image available Iliamna latibracteata H. E. Parks, S. T. Parks June, 1935 5593 Humboldt East side of Prairie Creek, North of Orick. Comment
Read comments
Feb 27 2012
  RSA366781  Iris Anstruther Davidson 1918-07 3343 Humboldt Eel River. Comment
  UC275569  Iris douglasiana Joseph P. Tracy 1923-6-20 6306 Humboldt White Thorn Valley; Northern Coast Ranges 304 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
  UCD170782  Iris douglasiana Gordon Leppig 1998-5-7 752 Humboldt Quarry Rd. off Jacoby Creek. Road cut 50 m east of log pond. 97 Comment
  UCSB879  Iris douglasiana Phillips, Priscilla 1958-6-7 Humboldt At entrance to Big Lagoon Park; North of Trinidad Comment
  UC719144  Iris macrosiphon F. G. Meyer 1938-4-6 1390 Humboldt about 10 mi n Garberville Comment
  UC1174845  Iris purdyi P. C. Everett and E. K. Balls 1959-10-26 23976 Humboldt 5.3 mi se Honeydew (along Old Coast Road to Ettersburg) 426 Comment
  RSA167433  Iris purdyi Joseph P. Tracy 1950-7-1 18950 Humboldt Friday Camp, Friday Ridge, Grouse Mountain, North Coast Ranges 1220 Comment
  HSC67179  Iris tenuissima Thomas W. Nelson, James Nelson 1980-6-10 5430 Humboldt Along E side of Red Mtn. 1372 Comment
  UC14924  Iris tenuissima Harley P. Chandler Jun 1901 1529 Humboldt Klamath River; North Coast Ranges Comment
  HSC13887  Iris tenuissima B. R. Templeton 1962-5-24 Humboldt Berry Summit, E slope Comment
  RSA136343  Iris tenuissima Lee W. Lenz, E. K. Balls 1952-5-12 17197 Humboldt 0.5 miles west of Dinsmore on Highway 36 from Alton to Red Bluff Comment
  CDA14235  Isatis tinctoria R. Spadoni 1998-5-11 s.n. Humboldt Hwy 299 near Blue Lake. 0 Comment
  CHSC84742  Isolepis cernua L. P. Janeway 2003-7-27 7928 Humboldt North Coast. East shore of Big Lagoon, about 0.3 km north of mouth of Tom Creek. 2 Comment
  HSC7446  Isolepis cernua C. B. Wolf 1927-8-22 790 Humboldt Big Lagoon Comment
  UC665529  Jaumea carnosa H. E. Parks 1941-8-1 24187 Humboldt Big Lagoon Comment
  UC1152088  Juncus articulatus Joseph P. Tracy 1927-8-7 8310 Humboldt Willow Creek Trinity River Valley 152 Comment
  SJSU10737  Juncus balticus subsp. ater H. T. Harvey 1977-7-7 616 Humboldt Eel R delta c. 4 mi NW of Ferndale Comment
  UC183780  Juncus bolanderi Joseph P. Tracy 1912-7-26 3826 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  UC1601711  Juncus bolanderi State Survey June 1867 6584 Humboldt Comment
Read comments
Jul 31 2010
  HSC13997  Juncus bufonius Paul Shields 1955-6-18 Humboldt H.S.C. campus Comment
  HSC69861  Juncus covillei Thomas W. Nelson, Ken Hindley 1978-5-28 4084 Humboldt McKeown Ranch, N of Dinsmore 762 Comment
  HSC44314  Juncus covillei Thomas W. Nelson, Jane Nelson 1977-8-6 3698 Humboldt Above Alder Spring 1616 Comment
  UC249813  Juncus covillei var. obtusatus Joseph P. Tracy with H. E. Parks 1924-8-3 6759 Humboldt Big Lagoon Northern Coast Region 6 Comment
  JEPS66996  Juncus effusus subsp. pacificus W. L. Jepson 1936-8-17 17908 Humboldt 2 mi s Fields's Landing (near Still's Ranch) Comment
  HSC98575  Juncus ensifolius Cara Witte 2008-8-6 1012 Humboldt Board Camp Mountain. Road to Tri Board Camp. 1486 Comment
  POM312824  Juncus ensifolius Malcolm A. Nobs, S. Galen Smith 1949-8-3 1199 Humboldt Southern outskirts of Eureka Comment
  JEPS49053  Juncus exiguus Hilda W. Grinnell 1932-7-22 43 Humboldt near Blake Lookout (below and s of U.S.G.S. signal rock); South Fork Mt. 1737 Comment
  JEPS63846  Juncus hesperius W. L. Jepson 1936-8-17 19709 Humboldt 2 mi s Field's Landing (near Still's ranch) Comment
  UC212987  Juncus mertensianus Joseph P. Tracy 1919-9-22 5265 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  UC183658  Juncus occidentalis Joseph P. Tracy 1912-7-21 3788 Humboldt Alton Northern Coast Ranges 30 Comment
  SEINET11788655  Juncus xiphioides J. P. Tracy 1938-1 16171 Humboldt Lake Prairie Comment
  HSC50858  Keckiella corymbosa Walter Overton, Marvin Butler 1979-7-25 9882 Humboldt Near Sims Mtn., close to the town of Willow Creek 1296 Comment
  HSC102575  Kelloggia galioides M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1562 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  RSA43678  Kelloggia galioides H. M. Pollard 1948-7-31 s.n. Humboldt Orleans Mt. 1372 Comment
  UC885732  Kickxia elatine Carl D. Duncan 1920-9-22 Humboldt Hoopa Valley Comment
  UC1051586  Lactuca serriola Joseph P. Tracy 1943-11-28 17460 Humboldt gravel bars <from> Alton to Fortuna; Eel River 15 Comment
  SEINET11811255  Lasthenia chrysostoma J. P. Tracy 1947-1 17752 Humboldt Larrabee Valley 732 Comment
  UC1223220  Lasthenia glaberrima Joseph P. Tracy 1951-6-21 19530 Humboldt back Everett Beck house (formerly George Gray's) (Hydesville); in bed of former Goose Lake, Hydesville Comment
  UCD107019  Lathyrus cicera Joseph P. Tracy 1942-6-15 17133 Humboldt at Englewood near Redcrest resort. 91 Comment
  UC1222399  Lathyrus glandulosus Joseph P. Tracy 1942-7-26 17298 Humboldt near Redwood House; Valley of South Yager Creek 609 Comment
  RSA0049750  Lathyrus littoralis Dean Wm. Taylor 2013-5-9 21346 Humboldt Highway 101 about 5 road miles South of Orick, beach west of the highway, opposite Freshwater Lagoon 2 Comment
  HSC39108  Lathyrus nevadensis var. nevadensis D. E. Anderson, J. P. Smith 1971-7-6 Humboldt Horse Mtn. Comment
  UCD106339  Lathyrus polyphyllus K. Esau 1934-5-8 s.n. Humboldt Above Fort Seward. 457 Comment
  JEPS55296  Lathyrus torreyi W. L. Jepson 1934-5-7 16705 Humboldt Buckeye Prairie Bull Creek Comment
  UC1199064  Lathyrus torreyi Joseph P. Tracy 1898-7-13 74 Humboldt near Hydesville; Northern Coast Region 60 Comment
  UC162872  Lathyrus torreyi Joseph P. Tracy 1906-6-10 2475 Humboldt Kneeland Prairie Northern Coast Ranges 762 Comment
  HSC75556  Lathyrus torreyi J. O. Sawyer, R. J. Cole 1977-7-3 3004 Humboldt Environs of Mud Spring, Big Hill Rd. (FS Rd. 8N01) 1524 Comment
  RSA74591  Lathyrus tracyi C. L. Hitchcock 1949-6-8 19086 Humboldt 3 miles SE of Willow Creek, along Highway #299. Comment
  SBBG3374  Lathyrus vestitus H. and M. Dearing 1939-5-24 3420 Humboldt Dyerville-Mattole Rd Pass, W of Panther Gap Comment
  UC15322  Lathyrus vestitus Joseph P. Tracy May 1901 1201 Humboldt Humboldt Bay North Coast Ranges 30 Comment
  UC931763  Lathyrus vestitus C. L. Hitchcock 1949-6-7 19081 Humboldt ca 15 mi n Garberville (Redwood Highway) Comment
  HSC90659  Layia carnosa Gail Newton 1982-5-5 3542 Humboldt Elk River Wildlife Area, Eureka. Comment
  UC1223217  Layia carnosa Joseph P. Tracy 1946-6-2 17555 Humboldt Fairhaven; Samoa Peninsula Comment
  CAS-BOT-BC380899  Layia platyglossa Volney Rattan 1877-4-10 196 Humboldt Eureka Comment
  UC32706  Ledum glandulosum W. C. Blasdale 1896-6-2 Humboldt West Eureka Comment
  SEINET10482507  Ledum glandulosum Albert Kellogg, W. G. W. Harford 1868-1 Kellogg 635 Humboldt Comment
  HSC100153  Lemna minor Rick Lundquist 1979-5-18 95 Humboldt Clam Beach Ponds 0 Comment
  SD88457  Leontodon saxatilis subsp. longirostris Darley F. Howe 1972-6-30 Humboldt Trinidad Comment
  HSC39835  Leontodon saxatilis subsp. saxatilis Peter Sorensen 1976-7-11 Humboldt Woodley Island; Humboldt Bay Comment
  HSC89416  Leontodon saxatilis subsp. saxatilis P. A. Daly 1986-1-20 45 Humboldt Trinidad Head, along trail 61 Comment
  SBBG49010  Leontodon taraxacoides R. N. Philbrick with S. T. Parks 1974-8-28 Humboldt behind beach, along US Hwy 101, S of Orick 76 Comment
  RSA409613  Lepechinia calycina Thekla Mohr 1919-07 3342 Humboldt Eel River. Comment
  HSC23119  Lepidium campestre B. D. Rogers, William J. Ferlatte 1966-6-15 2109 Humboldt Larabee Valley 762 Comment
  CHSC31922  Lepidium didymum M. S. Taylor 1980-10-9 3365 Humboldt Bed of Jacoby Creek, ca. 1/4 mi w of its jct with Arcata Rd, ca. 5 mi s of Arcata in Bayside. 15 Comment
  CAS-BOT-BC13038  Lepidium virginicum var. menziesii C. D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley. Comment
  RSA43876  Lepidium virginicum var. pubescens H. M. Pollard 1947-8-4 s.n. Humboldt Orleans Hotel grounds. Comment
  POM203230  Leptosiphon acicularis M. S. Jussel 1931-5-2 s.n. Humboldt 25 miles N of Garberville Comment
  BLMAR78  Leptosiphon bicolor Jennifer Anthony-Wheeler 1994-6-2 78 Humboldt IAQUA, growing beside logging rd, dry, open grassland 780 Comment
  OBI11411  Leptosiphon latisectus Joseph P. Tracy 1948-6-13 18048 Humboldt Near Harris (2 miles north) 610 Comment
  HSC71379  Leucanthemum vulgare J. P. Smith 1971-10-6 4942 Humboldt End of Murray Rd. in McKinleyville. Comment
  UC963848  Leucanthemum vulgare H. E. Parks and S. T. Parks Aug 1943 24257 Humboldt Spruce Cove; Trinidad 60 Comment
  CAS-BOT-BC283515  Leymus X vancouverensis Malcom A. Nobs; S. Galen Smith 1949-8-3 1204 Humboldt Salt marshes bordering Humboldt Bay, ca 2 miles N of Eureka Comment
  UC642251  Ligusticum apiifolium Joseph P. Tracy 1930-8-3 9153 Humboldt McClellan Mt. 762 Comment
  HSC74191  Ligusticum californicum M. A. Baker 1980-7-22 3120 Humboldt Near Grogan Hole. 1676 Comment
  HSC49055  Ligusticum californicum Patricia Shesgreen 1978-8-2 123 Humboldt Arcata Community Forest, 100 yds N of field house, 25 ft from pond Comment
  HSC56004  Ligusticum grayi Overton, Butler 1979-7-31 11455 Humboldt Near Water Dog Lakes, close to the town of Hoopa 1830 Comment
  UC672870  Lilaea scilloides Joseph P. Tracy 1933-5-20 12274 Humboldt back of Cape Mendocino (Cape Ridge); Cape Ridge 304 Comment
  UC1103400  Lilaeopsis occidentalis W. L. Jepson and Joseph P. Tracy 1921-8-7 5866 Humboldt Stone Lagoon Northern Coast Region, Stone Lagoon 3 Comment
  CAS-BOT-BC508406  Lilium columbianum A. M. Vollmer; L. Beane 1953-7-1 121 Humboldt Unspecified Comment
  HSC76434  Lilium kelleyanum Teresa Prendusi 1981-7-24 468 Humboldt Near Whiteys Peak 1585 Comment
  CAS-BOT-BC130633  Lilium kelloggii A. M. Vollmer; L. Beane 1951-7-1 173 Humboldt Freshwater, about 4-5 miles northeast of Eureka Comment
  CAS-BOT-BC130642  Lilium kelloggii 1942-7-9 s.n. Humboldt Alder Point Comment
  CAS-BOT-BC130643  Lilium kelloggii Albert M. Vollmer; Ira L. Wiggins 1940-7-4 6 Humboldt On Orick-Weitchpec road, 15 miles west of Weitchpec 944 Comment
  UC1198247  Lilium occidentale Joseph P. Tracy 1918-7-21 5078 Humboldt around Humboldt Bay Humboldt Hill; Northern Coast Ranges, Humboldt Bay, Humboldt Hill 182 Comment
  UC201617  Lilium pardalinum Joseph P. Tracy 1918-7-5 5003 Humboldt White Thorne Valley Northern Coast Ranges, Mattole River (banks of Mattole River) 304 Comment
  SEINET3992216  Lilium pardalinum Unknown 1908-6-27 2868 Humboldt Valley of Van Duzen River, opposite Buck Mountain 305 Comment
  CAS-BOT-BC132967  Lilium rubescens Alice Eastwood; John Thomas Howell 1937-6-22 4730 Humboldt Near Alder Point Comment
  UCR39794  Lilium rubescens D. K. Imper 1983-7-11 s.n. Humboldt Six Rivers National Forest. Forest Service Road 10N14 c. 2 mi north of junction with 13N01, north of Blue Lake 762 Comment
  UC1537005  Limnanthes douglasii Gordon H. True Jr. 1936-5-11 462 Humboldt 12 mi w Miranda (e of Elk Ridge); Elk Ridge 457 Comment
  UC668277  Limnanthes douglasii subsp. douglasii Joseph P. Tracy 1933-5-20 12271 Humboldt Bear River Ridge Northern Coast Ranges 609 Comment
  BLMAR427  Limonium californicum Clara Sander 2004-9-27 427 Humboldt South Spit, east side of road 4 Comment
  HSC1801  Limonium californicum William J. Ferlatte, B. D. Rogers 1966-8-15 3126 Humboldt Near Arcata sewage pond, N Humboldt Bay. Comment
  UC1198579  Linanthus androsaceus Joseph P. Tracy 1942-6-28 17273 Humboldt Murphy Ridge Bald Mountain 914 Comment
  UC1198568  Linanthus bicolor Joseph P. Tracy 1911-7-10 3487 Humboldt near Mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  JEPS79923  Linanthus ciliatus Joseph P. Tracy 12923 Humboldt s slope Grouse Mountain (towards Grouse Creek Basin); North Coast Ranges 1219 Comment
  UC1222729  Linanthus filipes Joseph P. Tracy 1950-5-30 18710 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC1197836  Linanthus nuttallii subsp. nuttallii Joseph P. Tracy 1936-8-2 15063 Humboldt French Camp Ridge 1066 Comment
  HSC72632  Linnaea borealis subsp. longiflora J. P. Smith 1977-7-3 9251 Humboldt Six Rivers National Forest, along the road to Onion Lake, just above Blue Lake 976 Comment
  HSC99851  Linnaea borealis subsp. longiflora T. Jimerson, J. Pageau 1979-6-12 533 Humboldt Near Hopkins Butte, close to the town of Orleans. 1036 Comment
  RSA0087552  Linnaea borealis subsp. longiflora Mrs. M. H. Manning 1901-06 108 Humboldt Trinity Summit. Comment
  SEINET10634291  Linum Daniel K. Harder 1994-10-4 Harder 2493 Humboldt Ca. 6 km W/SW of Fort Seward along Fort Seward Road along middle ridge (near powerlines), collections from rock outcrops in cattle pasture with islands of redwoods and Umbellaria; near small spring in hillside. 570 Comment
  UC275341  Linum usitatissimum Joseph P. Tracy 1923-6-18 6279 Humboldt Northern Coast Ranges, Bear River Ridge Bear River Ridge; Northern Coast Ranges, Bear River Ridge 304 Comment
  HSC7384  Lipocarpha occidentalis J. P. Tracy 1931-9-7 9650 Humboldt Trinity River Valley, Willow Creek 152 Comment
  UC1103631  Lipocarpha occidentalis Joseph P. Tracy 1920-8-15 5368 Humboldt Klamath R. at mouth of Bluff Creek; Northern Coast Ranges, Klamath R. 152 Comment
  HSC55228  Listera convallarioides G. L. Clifton, Griswold 1979-8-2 12428 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC27779  Listera convallarioides J. D. Ackerman 1973-8-19 113 Humboldt East edge of Mill Creek Lake, E of Hoopa Comment
  UC1103027  Listera cordata Joseph P. Tracy 1923-6-24 6361 1/2 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  UC1442907  Listera cordata Theodore F. Niehaus 1970-4-14 914 Humboldt ca. 5 mi w Yager-Bridgeville road (on Redwood House road) Comment
  JEPS38042  Lithocarpus densiflorus Lincoln Constance 1934-5-24 637 Humboldt forest bordering on e side Lower Look Prairie; South Fork Eel River, Bull Creek Region 121 Comment
  UC1222289  Lithocarpus densiflorus Joseph P. Tracy 1950-8-4 19253 Humboldt Grasshopper Peak Bull Creek State Park, Canoe Creek (at head of Canoe Creek in Bull Creek State Park) Comment
  RSA697655  Lithocarpus densiflorus var. densiflorus Unspecified 1936-09 s.n. Humboldt Richardson's Grove (State Park). Comment
  HSC20227  Lithophragma affine G. N. Bos 1965-5-15 266 Humboldt 2 mi. W of Berry Summit along U.S. 299. 701 Comment
  HSC81535  Lithophragma affine Thomas W. Nelson, Jane P. Nelson 1980-5-25 5258 Humboldt Along road from Dinsmore to Anderson Crossing, McKeown Ranch Rd. 100 m N of junction of road to Hindley Cabin 823 Comment
  HSC100654  Lithophragma bolanderi Carl C. Marshall Apr 1887 381 Humboldt Hoopa and Bald Hills. Comment
  HSC97180  Lithophragma campanulatum Benjamin Hart, Erin Lonergan 2007-6-13 10 Humboldt 1 mi. E of USFS Rd. NF1 on 5N04 1524 Comment
  HSC44409  Lithospermum californicum R. York 1978-5-6 161 Humboldt Along Bluff Creek Rd., 4 mi. from Jct. with Hwy. 96 610 Comment
  JEPS20909  Logfia gallica Joseph P. Tracy 1935-5-30 13914 Humboldt Willow Creek Trinity River Valley, Willow Creek 152 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
  UCD66068  Lolium multiflorum R. N. Raynor 1935-6-7 Humboldt Fort Seward. Comment
  UC50705  Lolium perenne J. Burtt Davy 1899-6-18 5518 Humboldt Pepperwood bottoms; North Coast Ranges, Pepperwood bottoms Comment
  UC1222607  Lomatium macrocarpum Joseph P. Tracy 1951-6-24 19537 Humboldt atop ridge near Ashfield Butte (Kneeland Prairie); Kneeland Prairie 1676 Comment
  HSC46922  Lomatium tracyi Brad Klipfel 1974-5-27 439 Humboldt Horse Mtn. Comment
  UC1197149  Lomatium tracyi Joseph P. Tracy 1933-7-9 12650 Humboldt Brannan Mt. Northern Coast Ranges, Brannan Mt. 1066 Comment
  HSC3946  Lonicera conjugialis J. P. Tracy 1932-7-11 10414 Humboldt Trinity Summit 1524 Comment
  HSC99850  Lonicera conjugialis Jimerson, J. Pageau 1979-8-10 750 Humboldt Near Tish Tang A Tang Ridge, close to the town of Hoopa. 1463 Comment
  HSC3931  Lonicera involucrata var. ledebourii D. E. Anderson 1961-9-13 1806 Humboldt Big Lagoon County Park Comment
  SBBG52993  Lonicera involucrata var. ledebourii J. D. Hobson -Jul-1966 Humboldt beach and cliff at S end of sand spit forming Eureka Harbor, 10 mi S of Eureka Comment
  SDSU2917  Lonicera involucrata var. ledebourii Harvey 1938-8-13 2278 Humboldt North of Arcata. Comment
  UC1239556  Lonicera involucrata var. ledebourii Joseph P. Tracy 1923-6-17 6269 Humboldt Big Lagoon 3 Comment
  SEINET12154181  Lotus aboriginus J. P. Tracy 1949-1 18321 Humboldt nr Boynton PRairie 12miSE of Arcata Comment
  UC162609  Lotus aboriginus Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5618 Humboldt Bald Mt. North Coast Ranges Comment
  UC1197310  Lotus formosissimus J. P. Tracy 1901-6-30 1200 Humboldt immeditate vicinity Eureka 0 Comment
  SEINET6932536  Lotus micranthus Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt East end of Bald Hills, southeast of Orick. Comment
  JEPS51821  Lotus nevadensis var. nevadensis W. L. Jepson 1902-7-3 1979 Humboldt Three Creeks to Willow Creek Comment
  UC169299  Lotus purshianus var. purshianus Joseph P. Tracy 1912-8-3 3973 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC303189  Lotus purshianus var. purshianus Joseph P. Tracy 1923-6-17 6266 Humboldt Dows Prairie Northern Coast Ranges 60 Comment
  UCD106707  Lotus uliginosus R. Tofsrud 1948-7-1 s.n. Humboldt Between Fields Landing and Loleta. Comment
  UC1223408  Lotus yollabolliensis Joseph P. Tracy 1933-7-16 12798 Humboldt near McKay Camp (near the top of South Fork Mountain); South Fork Mountain 1676 Comment
  HSC74666  Luina hypoleuca Gail Newton 1981-8-7 2423 Humboldt Near Bug Creek Butte 1244 Comment
  POM51553  Luina hypoleuca Joseph P. Tracy 1917-9-2 4839 Humboldt Grouse Mountain. 1524 Comment
  CAS-BOT-BC201190  Lupinus Charles Piper Smith 1947-7-11 47643 Humboldt Highway 101 - McKinleyville, 1.3 miles north Comment
  UC1223281  Lupinus adsurgens Joseph P. Tracy 1946-6-15 17567 Humboldt at the Ski Lodge, Horse Mountain (Horse Mountain); Horse Mountain 1219 Comment
  SEINET12154351  Lupinus albicaulis var. shastensis J. P. Tracy 1940-1 16687 Humboldt Wilder Range Comment
  HSC48868  Lupinus andersonii Brad Klipfel 1973-6-10 62 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  CDA27377  Lupinus arboreus T. C. Fuller 1961-9-28 7052 Humboldt Arcata-Samoa Road, 1.3 miles north of Samoa. 0 Comment
  SEINET10452623  Lupinus arboreus Mary Susan Taylor 1982-10-24 Taylor 5183 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  RSA296737  Lupinus arboreus var. arboreus J. P. Smith, T. W. Nelson 1977-6-30 9218 Humboldt Samoa Peninsula just east of the drag strip. Comment
  UC179935  Lupinus bicolor Joseph P. Tracy 1914-7-5 4561 Humboldt High Prairie on Bald Mountain; Northern Coast Ranges, High Prairie on Bald Mountain 1066 Comment
  UC501364  Lupinus bicolor Mrs. H. P. Bracelin 1931-5-3 316 Humboldt Laytonville Comment
  RSA256586  Lupinus bicolor Lon Hall 1975-5-24 382 Humboldt Samoa Dunes; Dunes from off Samoa Blvd. across from the boat landing; coastal strand. Comment
  RSA104683  Lupinus densiflorus var. densiflorus Joseph P. Tracy 1911-7-4 3280 Humboldt Valley of Trinity River near mouth of Willow Creek. 152 Comment
  UC503014  Lupinus elmeri Joseph P. Tracy Jul 16 1930-Jul 19 1930 8954 Humboldt near Blake lookout (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1737 Comment
  SEINET12165812  Lupinus formosus J. T. Vale 1988-1 s.n. Humboldt nr Honeydew Comment
  HSC57309  Lupinus latifolius Griswold, Butler 1979-7-10 6265 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  POM10720  Lupinus latifolius subsp. viridifolius H. P. Chandler 1901-06 13658 Humboldt Klamath River. 152 Comment
  UC161545  Lupinus latifolius var. latifolius Joseph P. Tracy 1911-7-7 3417 Humboldt Viz. Ridge n of Willow Creek Brannan Mountain (between Willow and Campbell Creeks, near the summit); Northern Coast Ranges, Brannan Mt, btw Willow and Campbell C 1219 Comment
  UC176599  Lupinus latifolius var. latifolius Joseph P. Tracy 1913-6-20 4240 Humboldt lower foothills on its nw slope Buck Mountain; Northern Coast Ranges, lower foothills Buck Mountain 762 Comment
  SBBG3657  Lupinus latifolius var. viridifolius H. and M. Dearing 1939-5-24 3416 Humboldt 5 mi S of Alton Comment
  SEINET12154580  Lupinus lepidus H. P. Chandler 1901-1 1498 Humboldt Klamath River 427 Comment
  HSC40962  Lupinus littoralis Linda M. Barker 1976-7-5 1642 Humboldt 3 mi. W of Arcata Comment
  HSC63182  Lupinus onustus M. A. Baker 1979-7-10 1024 Humboldt Above Bluff Creek Comment
  SEINET10488861  Lupinus rivularis Smith 1948-5-4 Smith 48203 Humboldt Hwy. 101--Orick, n of bridge. Comment
  RSA170274  Lupinus sellulus var. artulus Joseph P. Tracy 1918-7-5 5021 Humboldt White Thorn Valley. 305 Comment
  SEINET10450622  Lupinus sellulus var. lobbii Thomas W. Nelson, Jane P. Nelson 1976-6-15 Nelson 2710 Humboldt Growing on serpentine along old trail from lookout to blocksburg. 1524 Comment
  HSC14889  Lupinus variicolor J. W. Johnson 1962-4-19 1279 Humboldt Manila, Samoa Peninsula Comment
  RSA165867  Lupinus variicolor Philip A. Munz 1963-6-19 24528 Humboldt Patrick's Point. 30 Comment
  UC1152142  Luzula cascadensis Joseph P. Tracy 1930-7-17 8972 Humboldt Near McKay Camp, South Fork Mountain 1676 Comment
  POM160310  Luzula comosa Joseph P. Tracy 1926-5-2 7446 Humboldt Serpentine formation near Ruby Creek, Willow Creek Canyon. 610 Comment
  CAS-BOT-BC436735  Luzula comosa var. laxa Doris Kildale Gillespie 1931-6-7 10661 Humboldt South Fork Mt., Blake Lookout 1726 Comment
  UC1152125  Luzula parviflora Joseph P. Tracy 1930-7-17 8973 Humboldt near McKay camp; South Fork Mountain, near McKay Camp 1676 Comment
  RSA54022  Luzula parviflora E. K. Balls, Lee W. Lenz 1956-6-12 21662 Humboldt 4.4 miles SW from Willow Creek along U. S. Highway 299 to Arcata. 366 Comment
  UC183776  Luzula subsessilis Joseph P. Tracy 1904-4-24 2032 Humboldt Northern Coast Region. Sand Dunes of Ocean Beach at Humboldt Bay Comment
  RSA246934  Lycopodiella inundata R. F. Thorne, Percy C. Everett 1965-8-7 35192 Humboldt Big Lagoon, south end. 2 Comment
  HSC77926  Lycopodium clavatum L. P. Janeway 1984-3-14 715 Humboldt Arcata Community Forest, at edge of access road, NW-facing slope. 229 Comment
  JEPS42814  Lysichiton americanus W. L. Jepson 1902-6-24 1925 Humboldt Eureka Hupa Indian Reservation, Eureka Comment
  JEPS45971  Lythrum hyssopifolia W. L. Jepson 1902-8-4 2146 Humboldt near Petrolia ( Expedition from Ukiah to the Hupa Indian Reservation) Comment
  UCD103045  Lythrum hyssopifolia H. E. Parks; S. T. Parks 1937-6-1 24028 Humboldt Trinidad, Spruce Cove. Comment
  HSC34698  Lythrum hyssopifolia Thomas W. Nelson 1974-9-12 1706 Humboldt KOA campground along E side of Hwy. 101, 3 mi. S of Arcata 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
  HSC100440  Madia elegans Carl C. Marshall Jun 1885 97 Humboldt Hills. Comment
  UC89451  Madia elegans unknown Humboldt Jarnigans Comment
  HSC56970  Madia exigua Overton, Butler 1979-7-23 9499 Humboldt Near Titlow Hill, close to the town of Willow Creek. 1280 Comment
  HSC35783  Madia gracilis Thomas W. Nelson, B. Reinhardt 1975-7-30 2090 Humboldt Head of Pilot Creek, Last Chance Ridge Comment
  CAS-BOT-BC343025  Madia gracilis Doris K. Kildale 1927-6-25 3564 Humboldt Fearren's Ranch between Thorn & Shelter Cove Comment
  UC175981  Madia gracilis Joseph P. Tracy 1908-6 2796 Humboldt Valley of Van Duzen River; Northern Coast Ranges, Buck Mountain 762 Comment
  POM284946  Madia madioides Lyman Benson 1929-7-16 1868 Humboldt Weott Ranger Station. Comment
  HSC40379  Madia sativa Linda M. Barker 1976-6-14 1592 Humboldt 3 mi. W of Arcata Comment
  CAS-BOT-BC343594  Madia sativa Doris K. Kildale 1925-7-28 1093 Humboldt Riverside on the Van Duzen River near Strong's Station Comment
  UC1223207  Madia sativa Joseph P. Tracy 1950-6-8 18758 Humboldt at hill leading from the coast toward Petrolia; Domingo Hill Comment
  RSA246852  Mahonia nervosa R. F. Thorne, P. Everett 1965-8-5 35138 Humboldt Mt. Chamisal: below sumit. 534 Comment
  CAS-BOT-BC508519  Maianthemum dilatatum Alice Eastwood 1907-4-21 35 Humboldt Port Trinidad Comment
  HSC69845  Maianthemum dilatatum R. Kalal 1979-5-5 47 Humboldt Fickle Hill Rd., 1.0 mi. E of 11th St. 183 Comment
  UCD13245  Maianthemum dilatatum Peter Stekel 1974-6-1 143 Humboldt Patricks Point State Park, Agate Beach by U.S. hwy 101. Elev. 10 ft. 3 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
  HSC45619  Maianthemum racemosum subsp. amplexicaule Diane L. Reed 1978-4-22 36 Humboldt Tish Tang Campground, 5 mi. N of Willow Creek on Hwy. 96 Comment
  HSC15655  Maianthemum racemosum subsp. amplexicaule W. D. Stevens 1968-4-15 8 Humboldt Boise Creek near Hwy. 299 Comment
  SEINET3992479  Maianthemum stellatum Unknown 1932-7-12 10455 Humboldt Near Corral Prairie; Trinity Summit 1585 Comment
  CAS-BOT-BC347409  Malacothrix floccifera Walter Knight 1964-9-20 714 Humboldt Roadside US 101. Between Mendocino-Humboldt Co. line and Devoy Grove Comment
  UC33287  Malacothrix floccifera C. C. Marshall 1888-1-1 Humboldt Comment
  CAS-BOT-BC140140  Malus fusca Doris K. Kildale 1928-9-10 6715 Humboldt Big Lagoon - south end of Comment
  HSC18693  Malus fusca J. W. Johnson 1962-4-18 1253 Humboldt Above S pasture, W.M. Lanphere Farm, Samoa Peninsula. Comment
  UC484032  Malus fusca C. B. Wolf 1930-10-26 Humboldt s edge Big Lagoon (near the Redwood Highway) 3 Comment
  UC673056  Malva nicaeensis Joseph P. Tracy 1940-9-26 16734 Humboldt at s end of Humboldt Bay, Salmon Creek Valley Salmon Creek Valley; Humboldt Bay, Salmon Creek Valley 9 Comment
  HSC73820  Marah oregana Gail Newton 1980-6-7 135 Humboldt Near Brush Mtn. 1128 Comment
  POM67053  Marah oregana Marcus E. Jones 1924-4-26 s.n. Humboldt Eureka. Comment
  UC505101  Marah oregana Joseph P. Tracy 1929-4-28 8543 Humboldt Willow Creek Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1222345  Marah oregana Joseph P. Tracy 1951-5-20 19402 Humboldt Barry Ridge Kneeland Prairie 762 Comment
  UC168954  Marah oregana Joseph P. Tracy 1909-5-30 2980 Humboldt Eureka Northern Coast Region 0 Comment
  UC1199282  Matricaria discoidea J. P. Tracy 1900-6-23 856 Humboldt immediate vicinity Eureka 0 Comment
  UC303179  Medicago arabica Joseph P. Tracy 1925-5-31 7051 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC160957  Medicago lupulina Harley P. Chandler June, 1901 1423 Humboldt Klamath River Northern Coast Ranges 304 Comment
  CAS-BOT-BC271115  Melica bulbosa Joseph P. Tracy 1935-7-24 14194 Humboldt Near Ranger Station, Trinity Summit 1828 Comment
  SEINET200335 Image available Melica californica var. nevadensis J. P. Tracy 1927-5-14 7999 Humboldt Trinity River Valley near the S Fork 183 Comment
  HSC64160  Melica harfordii J. O. Sawyer, K. A. Sawyer 1979-6-24 3401 Humboldt Slopes alongside Aikens Creek. 366 Comment
  UCD87511  Melica harfordii August L. Hormay 1932-5-12 s.n. Humboldt Bull Creek Road. Comment
  HSC102218  Melica subulata M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1134 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC10367  Melica subulata R. D. Zortman 1963-5-5 31 Humboldt 5 mi. NE of Arcata, S of Mad River, off Warren Creek Rd. 91 Comment
  UCD88618  Melica subulata August L. Hormay 1932-5-12 s.n. Humboldt Bull Creek Road, Redwood Highway, north of Garberville. Comment
  JEPS65536  Melilotus indicus Lincoln Constance 1934-5-26 662 Humboldt s end of Dyerville Bridge, South Fork of Eel River, Bull Creek Region Dyerville Bridge; Bull Creek Region, South Fork Eel River, Dyerville Bridge 45 Comment
  RSA246675  Melilotus indicus Robert F. Thorne, Percy C. Everett, K. Thorne 1965-8-8 35248 Humboldt N. edge of Eureka, E. of Hwy. 101 5 Comment
  SD42344  Mentha canadensis Carl B. Wolf 1937-9-12 9329 Humboldt Big Lagoon, south side along Redwood Highway. 6 Comment
  UC577344  Mentha canadensis Joseph P. Tracy 1934-7-30 13501 Humboldt along coast in front of South End Stone Lagoon (Dry Lagoon); , in front of South End of Stone Lagoon 3 Comment
  JEPS63479  Mentha canadensis W. L. Jepson 1936-8-7 17936 Humboldt near Arcata (Mad River); Mad River Comment
  RSA83450  Mentha canadensis F. W. Peirson 1926-7-12 7044 Humboldt Humboldt County: Orick Comment
  UCD125052  Mentha canadensis Malcolm A. Nobs; S. Galen Smith 1949-8-9 1241 Humboldt on south side of the town of Blue Lake. Comment
  SD148130  Mentha pulegium G. K. Helmkamp, E. A. Helmkamp 2001-7-8 6987 Humboldt Ca-36, along the Van Duzen R. 19.6 miles east of U. S. 101. 136 Comment
  SEINET3228190 Image available Mentha pulegium Joseph P. Tracy 1930-9-1 9175 Humboldt Miranda, along South Fork of Eel River 120 Comment
  UCD117673  Menziesia ferruginea T. I. Storer 1931-7-1 2251 Humboldt Coast. Comment
  HSC32925  Micropus californicus var. californicus Thomas W. Nelson, James Nelson 1973-5-28 968 Humboldt McKeown Ranch N of Dinsmore Comment
  UC1223190  Micropus californicus var. californicus Joseph P. Tracy 1947-5-10 17681 Humboldt near Briceland Comment
  UC1199338  Micropus californicus var. californicus Joseph P. Tracy 1919-5-31 5150 Humboldt near Mouth of Willow Creek; Northern Coast Region, Valley of the Trinity River 152 Comment
  RSA167429  Microseris laciniata subsp. leptosepala Joseph P. Tracy 1947-7-9 17828 Humboldt Horse Mountain, lower slopes 1128 Comment
  HSC73576  Microseris nutans M. A. Baker 1980-7-19 3011 Humboldt Near Bret Hole. 1814 Comment
  HSC39233  Microseris nutans D. E. Anderson, J. P. Smith 1971-7-6 - 1275 Humboldt Horse Mtn. Comment
  HSC71036  Microsteris gracilis Thomas W. Nelson 1977-4-20 3328 Humboldt Along FS Rd. 1N15 at bridge over Mad River 457 Comment
  CDA41683  Mimulus alsinoides B. F. Kemp 1958-4-14 s.n. Humboldt Winters Ranch, north of Bald Hills School, near Eureka. 0 Comment
  HSC56069  Mimulus breweri G. L. Clifton, Griswold 1979-7-31 11735 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa. 1845 Comment
  UC1196835  Mimulus grandis Joseph P. Tracy 1914-5-30 4483 Humboldt near Hydesville; Northern Coast Ranges 60 Comment
  HSC22805  Mimulus guttatus D. E. Anderson, J. P. Smith 1970-5-10 5062 Humboldt Along road from Redwood Creek to Hoopa, 1-3 mi. W of Hoopa Comment
  HSC99435  Mimulus guttatus K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 84 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC103776  Mimulus kelloggii Harley P. Chandler June 1901 1480 Humboldt Klamath River North Coast Ranges 426 Comment
  JEPS8153  Mimulus layneae Joseph P. Tracy 1937-6-27 15382 Humboldt w of mouth South Fork of Trinity River; Friday Ridge 1219 Comment
  HSC98844  Mimulus moschatus Cara Witte 2008-7-11 876 Humboldt Spike Buck Mountain. Forest Service Road 5N18. 0.5 mi. from intersection with National Forest 1. 1589 Comment
  HSC44830  Mimulus moschatus Thomas W. Nelson, Jane Nelson 1977-7-4 3519 Humboldt Bog southwest of Alder Springs 1494 Comment
  UC582441  Mimulus pilosus Joseph P. Tracy 1923-9-16 6552 Humboldt at mouth of South Fork Northern Coast Ranges, Trinity River Valley 152 Comment
  JEPS11056  Mimulus primuloides Joseph P. Tracy 1935-7-26 14258 Humboldt Water Dog Lakes Trinity Summit 1828 Comment
  UC582498  Mimulus primuloides subsp. primuloides Joseph P. Tracy 1932-7-14 10534 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1565790  Mimulus pulsiferae R. Spellenberg 1990-7-10 10252 Humboldt 1 mi w Horse Mountain (7.5 air mi sw of Willow Creek county road 7K100 4.5 mi s of Berry Summit (on CA Hwy 299), extreme e edge county) 1219 Comment
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Sep 10 2013
  UC1196786  Mimulus pulsiferae Joseph P. Tracy 1908-6 2698 Humboldt opposite Buck Mountain (along stream); Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  UC1103540  Minuartia californica Joseph P. Tracy 1920-5-20 6215 Humboldt dry slope towards Lawrence Creek; Northern Coast Ranges, Kneeland Prairie 762 Comment
  CAS-BOT-BC388624  Minuartia douglasii Doris K. Kildale 1928-5-27 5954 Humboldt Kneeland Prairie 853 Comment
  UC1198330  Minuartia douglasii Joseph P. Tracy 1911-7-4 3299 Humboldt Willow Creek Northern Coast Ranges (near mouth, tributary of Trinity River) 182 Comment
  UC1103535  Minuartia pusilla Joseph P. Tracy 1904-4-24 2030 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach) Comment
  CHSC98379  Mitella caulescens Dean Wm. Taylor 2004-6-24 19138 Humboldt Head of Madden Creek, Ammon Ridge, seepage area along Forest Road 5N15 0.4 miles west of the junction with Forest Road 5N01. 1356 Comment
  HSC48742  Moehringia macrophylla Brad Klipfel 1973-6-10 67 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  UC176998  Monardella odoratissima subsp. glauca Joseph P. Tracy 1912-7-31 3928 Humboldt Near summit Buck Mountain; Northern Coast Ranges 1676 Comment
  LA62456  Monardella villosa Harlan Lewis; 1940-7-3 sn Humboldt 1 mi. N of Richardson Grove State Park 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
  SEINET4173669 Image available Monardella villosa var. glabella Joseph P. Tracy 1947-1 17782 Humboldt Trinity Summit; ridge top one mile west of Mud Springs, in serpentine formation 1158 Comment
  HSC99495  Montia fontana K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 155 Humboldt Near North Trinity Mtn, Government Trail, near Box Camp, Six Rivers National Forest. 1460 Comment
  HSC97935  Montia linearis Cara Witte 2007-5-21 63 Humboldt White Oak Opening. 1257 Comment
  UC673004  Montia parvifolia Joseph P. Tracy 1935-7-24 14170 Humboldt Trinity Summit, near Ranger Station Trinity Summit 1828 Comment
  CAS-BOT-BC445160  Montia parvifolia Henry M. Pollard 1947-8-9 s.n. Humboldt South river road, south of Orleans Comment
  JEPS43174  Montia parvifolia Milo S. Baker 1923-7-31 143 Humboldt Butte's Run; North Coast, Butte's Run Comment
  UCD110310  Morella californica T. I. Storer 1931-7-1 2220 Humboldt Near Samoa. Comment
  CDA36322  Muehlenbeckia complexa R. Robison 2011-6-3 Humboldt Trinidad State Beach, across road from Humboldt State Marine Research Center. 0 Comment
  HSC102098  Muhlenbergia filiformis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 985 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC44168  Muhlenbergia filiformis Thomas W. Nelson, Jane P. Nelson 1977-9-3 3738 Humboldt Head of Bear Creek 1585 Comment
  HSC58668  Muhlenbergia filiformis G. L. Clifton, Griswold 1979-8-1 12090 Humboldt Near High Spring, close to the town of Hoopa. 1798 Comment
  OBI22021  Muhlenbergia filiformis Joseph P. Tracy 18-Sep-19 5233 Humboldt Trinity Summit 1829 Comment
  UC1145149  Muhlenbergia filiformis Joseph P. Tracy 1919-9-18 5233 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  CHSC33038  Myosotis latifolia James P. Smith 1973-5-26 6855 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Railroad right-of-way. Comment
  POM17167  Myrica californica J. B. Feudge 1923-8-1 50 Humboldt Fortuna 30 Comment
  SEINET3155577  Myrica californica J. W. Johnson 1961-11-27 1431 Humboldt Arcata; along the trail on the Hunt Farm, Samoa Peninsula. Comment
  UC1541037  Myrica californica Adele Lewis Grant 1938-8-5 Humboldt n. Arcata Comment
  UC1198597  Navarretia divaricata Joseph P. Tracy 1926-6-27 7689 Humboldt Horse Mountain Northern Coast Ranges 1402 Comment
  HSC17129  Navarretia divaricata H. E. Parks 1939-6-27 5257 Humboldt Grouse Mtn. Comment
  JEPS70319  Navarretia intertexta Joseph P. Tracy 1898-7-14 91 Humboldt near Hydesville Comment
  UC1008728  Navarretia intertexta Henry M. Pollard 1945-8-26 Humboldt n of Orleans (road to old mine); Klamath River Canyon Comment
  HSC96932  Navarretia intertexta subsp. propinqua Elizabeth Kimbrough, Whitney Meier 2007-6-13 9 Humboldt Grouse Mtn., 1 mi. E of NF1 on USFS 5N04 1524 Comment
  UC907952  Navarretia linearifolia subsp. linearifolia Joseph P. Tracy 1930-7-10 8864 Humboldt Brannan Mountain Northern Coast Ranges, Brannan Mountain 1219 Comment
  UC1222716  Navarretia squarrosa Joseph P. Tracy 1950-8-4 19254 Humboldt Grasshopper Peak Bull Creek State Park Comment
  HSC100628  Neillia opulifolia Carl C. Marshall Apr 1885 52 Humboldt Streams etc. near coast. Comment
  HSC45622  Nemophila menziesii Diane L. Reed 1978-4-22 28 Humboldt Tish Tang Campground, 5 miles north of Willow Creek on State Hwy. 96. Comment
  CHSC97984  Nemophila menziesii var. atomaria Andrew Byers; Stuart E Richardson III 2005-6-10 9 Humboldt 7.4 mi south of Hwy 299 on NF1. Coldspring Camp. 1357 Comment
  RSA114997  Nemophila menziesii var. atomaria E. K. Balls, Lee W. Lenz 1955-5-15 20740 Humboldt 13.5 miles southwest from Ferndale along Old Coast road to Capetown. 335 Comment
  UC1103815  Nemophila menziesii var. atomaria Joseph P. Tracy 1926-5-15 7481 Humboldt Kneeland Prairie 762 Comment
  HSC57706  Nemophila parviflora G. L. Clifton, Griswold 1979-7-25 10955 Humboldt Near Red Cap Lake, close to the town of Forks of Salmon. 1784 Comment
  UC1239747  Nemophila parviflora Joseph P. Tracy 1906-6-10 2484 Humboldt Kneeland Prairie Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC562595  Nemophila parviflora Joseph P. Tracy 1932-7-13 10492 Humboldt near Corral Prairie (Trinity Summit); , near Corral Prairie 1584 Comment
  HSC99413  Nemophila parviflora var. austiniae K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-6-28 62 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
  HSC71030  Nemophila pedunculata Thomas W. Nelson 1977-4-20 3322 Humboldt Along FS Rd. 1N15 at bridge over Mad River 762 Comment
  UC198618  Nicotiana quadrivalvis Joseph P. Tracy 1916-9-5 4764 Humboldt 4 mi above South Fork of Eel River mouth; Northern Coast Ranges 60 Comment
  UC1196162  Nicotiana quadrivalvis Joseph P. Tracy 1940-10-17 16769 Humboldt 2 to 5 mi e South Fork (along Eel River); Eel River 45 Comment
  UC73585  Nicotiana quadrivalvis var. quadrivalvis Joseph Burtt Davy and Walter C. Blasdale 1899-6-20 5709 Humboldt Hoopa Valley Comment
  HSC47951  Noccaea fendleri subsp. glauca Brad Klipfel 1974-5-27 387 Humboldt Horse Mtn. Comment
  JEPS40280  Nuphar lutea subsp. polysepala W. L. Jepson 1902-6 1920 Humboldt pond near Arcata Comment
  HSC16162  Nuphar polysepala D. B. Bader 1963-3-29 5 Humboldt Second of the Clam beach lagoons, W of Hwy. 101 Comment
  UC203964  Nuttallanthus texanus J. P. Tracy 1918-5-5 4921 Humboldt Ocean Beach at Humboldt Bay Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  CAS-BOT-BC142294  Oemleria cerasiformis Doris K. Kildale 1927-5-13 3140 Humboldt Redwood Creek at Berry's 289 Comment
  HSC18701  Oemleria cerasiformis J. L. Baker 1965-3-13 13 Humboldt Humboldt Meridian, 4 mi. N of Arcata on N Bank Rd. Comment
  RSA782436  Oemleria cerasiformis R. W. Spjut, Paul Burchstead 2008-6-14 16347 Humboldt North Coast Ranges. Old Hwy. along west side of Hwy. 101 between Loleta and Fortuna 25 Comment
  UC902146  Oemleria cerasiformis Joseph P. Tracy 1946-5-30 17550 Humboldt Carlotta; flat by old Strong's District School House, 5 mi e of town 60 Comment
  HSC39450  Oenanthe sarmentosa Linda M. Barker 1976-7-5 1632 Humboldt 3 mi. W of Arcata. Comment
  HSC16486  Oenothera glazioviana Jerry Parker 1968-10-1 78 Humboldt 0.5 mi. N of Dows Prairie School Comment
  UC249847  Oreostemma alpigenum var. andersonii Joseph P. Tracy 1924-7-4 6708 Humboldt Snow Camp Northern Coast Ranges 1371 Comment
  UC1197566  Orthilia secunda Joseph P. Tracy 1940-7-7 16663 Humboldt Grouse Mt. on Friday Ridge 1371 Comment
  HSC21582  Osmorhiza berteroi John A. DuBois 1962-5-23 29 Humboldt 19 mi. E of Arcata Comment
  HSC79449  Osmorhiza berteroi Kenneth Clark 1980-4-18 576 Humboldt On access trail to Dead Man's Gulch 52 Comment
  UCR123963  Osmorhiza chilensis George K. Helmkamp, E. A. Helmkamp 2001-7-8 6973 Humboldt North Coast, CA Hwy 36, along the Van Duzen River, 19.6 mi east of CA Hwy 101, west of Bar W Road 137 Comment
  HSC48813  Osmorhiza occidentalis Brad Klipfel 1973-7-31 227 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  HSC22861  Osmorhiza purpurea D. E. Anderson 1965-5-1 3562 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  CHSC24885  Oxalis oregana W. A. Vaccaro 1976-4-4 1 Humboldt Ca. 300 yds. NE of int. of Cedar St. and W. St., Cutten. 45 Comment
  UC1197421  Oxalis oregana Joseph P. Tracy 1901-6-10 1136 Humboldt Eureka Northern Coast Ranges 0 Comment
  UC1103427  Oxalis oregana Joseph P. Tracy 1927-5-15 8044 Humboldt Sugar Bowl Mt., on rd between Willow Creek and Hoopa Northern Coast Ranges 457 Comment
  UC275338  Oxalis trilliifolia Joseph P. Tracy 1923-6-24 6362 Humboldt near High Prairie; Northern Coast Ranges, Bald Mountain 1066 Comment
  CAS-BOT-BC318158  Packera bolanderi var. bolanderi Volney Rattan 1878-1-1 s.n. Humboldt unspecified Comment
  UCD88713  Panicum acuminatum var. fasciculatum A. H. Murphy 1948-9-14 Humboldt K-weed beetle field; Toby and Prior Ranch, south of Blocksburg. Comment
  CAS-BOT-BC253924  Parapholis incurva S. K. Harris; J. P. Tracy 1936-6-6 3218 Humboldt Near railroad station, Eureka Comment
  HSC30825  Parapholis strigosa J. P. Smith, Dennis Anderson 1971-6-14 - 1051 Humboldt At foot of G St., Arcata. Comment
  JEPS103920  Parentucellia viscosa T. I. and F. M. Chuang 1991-7-7 7865 Humboldt Ca 7 mi S of Orick. Comment
  UC1222448  Parentucellia viscosa Joseph P. Tracy 1934-6-18 13230 Humboldt Eureka 6 Comment
  UC1409051  Parentucellia viscosa Robert F. Thorne and P. Everett 1965-8-7 35202 Humboldt Samoa Peninsula Comment
  HSC90262  Parentucellia viscosa Jean Hanson 1980-5-24 75 Humboldt Indian (Gunther) Island in Humboldt Bay, city of Eureka, W end of island, S of dike Comment
  RSA10097  Paspalum distichum Joseph P. Tracy, H. E. Parks 1924-8-3 6779 Humboldt Big Lagoon 6 Comment
  HSC54592  Paxistima myrsinites Overton, Butler 1979-7-24 9660 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  HSC56113  Paxistima myrsinites Gilbert Muth 1979-8-1 11880 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1877 Comment
  POM126156  Paxistima myrsinites Joseph P. Tracy 1922-4-30 6042 Humboldt Brannan Mountain. viz. ridge north of Willow Creek, between Willow and Campbell Creeks. 915 Comment
  UC1199004  Paxistima myrsinites Joseph P. Tracy 1935-7-29 14346 Humboldt near Ranger Station Trinity Summit 1584 Comment
  BLMAR140  Pedicularis densiflora Donald Hazlett 1994-6-7 140 Humboldt King range, near horse Mt. Ridge rd 670 Comment
  JEPS10346  Pedicularis densiflora Lincoln Constance 1934-6-7 832 Humboldt Johnson Prairie; Bull Creek Region, South Fork Eel River Comment
  JEPS10352  Pedicularis densiflora Joseph P. Tracy 1926-5-2 7426 Humboldt near the South Fork; Trinity River Valley 182 Comment
  JEPS3357  Pedicularis racemosa Joseph P. Tracy 1930-7-16 8917 Humboldt near McKay Camp; South Fork Mountain 1676 Comment
  HSC100933  Pellaea andromedifolia Miss Handy Jun 1886 336 Humboldt Maple Cr. (on a large rock). Comment
  HSC99109  Pellaea brachyptera Cara Witte 2008-6-13 714 Humboldt Forest Service Road 4N32. 1.4 miles north of intersection with Forest Service Road 4N32B. 1382 Comment
  HSC56314  Penstemon anguineus Walter Overton, Marvin Butler 1979-8-2 12651 Humboldt Near Grogan Hole, close to the town of Hoopa 1554 Comment
  UC1198048  Penstemon anguineus Doris Kildale Aug. 1925 Humboldt Trinity Summit Comment
  UC1326253  Penstemon anguineus Milo S. Baker 1947-8-10 11911 Humboldt near end of Forest Rd from Hoopa toward Trinity Summit; rd from Hoopa toward Trinity Summit 1371 Comment
  RSA167237  Penstemon heterophyllus subsp. purdyi Joseph P. Tracy 1950-6-15 18782 Humboldt At the Jenk's Ranch, where not over sheeped, 7 miles N of Harris. Comment
  UC902217  Penstemon heterophyllus var. purdyi Joseph P. Tracy 1942-7-2 17369 Humboldt opposite Buck Mountain (Dinsmore's); along Van Duzen River, Dinsmore's 762 Comment
  HSC41280  Penstemon laetus subsp. sagittatus Brad Klipfel 1974-6-25 441 Humboldt Horse Mtn., along ridge running to the E of Horse Mtn. proper Comment
  NY627429  Penstemon newberryi var. berryi J. P. Tracy 1930-7-16 8953 Humboldt South Fork Mountain: along summit near Blake lookout 1706.9 Comment
  HSC56044  Penstemon procerus var. brachyanthus G. L. Clifton, Terry Griswold 1979-7-31 11619 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  HSC56195  Penstemon procerus var. brachyanthus Gilbert Muth 1979-8-1 12139 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  UC1222945  Pentachaeta alsinoides Joseph P. Tracy 1946-5-16 17346 Humboldt bench on w side of river 1 mi s Garberville; Eel River Comment
  UC1103410  Perideridia kelloggii Joseph P. Tracy 1924-5-4 6665 Humboldt Bridgeville Northern Coast Ranges 228 Comment
  UC1389969  Perideridia kelloggii T. I. Chuang and B. G. Briggs 1963-4-10 5087 Humboldt 17 mi se Bridgeville (along stream bank) Comment
  HSC98753  Perideridia oregana Cara Witte 2007-7-27 601 Humboldt National Forest 1. 1.5 miles southeast of Forest Service Road 5N09. 1560 Comment
  UCD99742  Persicaria maculosa James Payne Smith Jr.; Advanced Plant Taxonomy Class 1971-10-6 4950 Humboldt End of Murray Road in McKinleyville. Comment
  UCD134927  Petasites frigidus var. palmatus R. N. Raynor 1935-3-13 s.n. Humboldt Fort Seward. Comment
  RSA298347  Phacelia bolanderi J. P. Smith, Steve Selva 1970-6-14 3821 Humboldt Along California 96 at Whitmore Creek. 152 Comment
  UC198663  Phacelia bolanderi Joseph P. Tracy 1916-5-31 4704 Humboldt Stitz Creek Bluff Northern Coast Ranges, Eel River (along river from South Fork to Scotia) 60 Comment
  HSC103089  Phacelia corymbosa Sydney Carothers 2014-6-22 4 Humboldt Six Rivers National Forest, Lassics Botanical Area; on saddle between Peak 1 and Mt. Lassic 1796 Comment
  HSC98658  Phacelia heterophylla subsp. virgata Cara Witte 2007-7-3 416 Humboldt Along National Forest 1. 1/4 mile north of Road V. 1268 Comment
  HSC57205  Phacelia mutabilis Griswold, Butler 1979-7-12 7160 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  JEPS1162  Phacelia mutabilis Joseph P. Tracy Jul 16 1930-Jul 19 1930 8937 Humboldt near McKay Camp; Northern Coast Ranges, South Fork Mountain 1676 Comment
  UC562568  Phacelia nemoralis subsp. oregonensis Joseph P. Tracy 1935-5-25 13829 Humboldt Blocksburg 518 Comment
  JEPS1133  Phacelia nemoralis subsp. oregonensis W. L. Jepson 1902-6-20 1896 Humboldt = Mail Ridge Fort Seward Ranch Ridge 396 Comment
  UC1132414  Phalaris aquatica H. S. Yates 1936-6-23 5857 Humboldt 2 mi se mouth of Mad River; Eureka Quad. Comment
  UCD88768  Phalaris californica Joseph P. Tracy 1951-6-26 19599 Humboldt Butter Valley Road, about 2 miles E of junction of Kneeland Prairie Road. Comment
  JEPS49603  Philadelphus lewisii Joseph P. Tracy 1926-6-27 7696 Humboldt Horse Mountain Northern Coast Ranges 1066 Comment
  SEINET200857  Philadelphus lewisii subsp. gordonianus Joseph P. Tracy 1937-6-20 15355 Humboldt Bear River, ten miles upstream from the mouth. 152 Comment
Read comments
Oct 8 2018
  UC1103788  Phleum alpinum Joseph P. Tracy 1917-9-3 4853 Humboldt lower slopes Grouse Mountain (Jones Ranch); Northern Coast Ranges, lower slopes Grouse Mountain 914 Comment
  HSC98126  Phleum pratense Cara Witte 2007-6-28 385 Humboldt Forest Service Road 5N10. Approximately 1/2 mile east of intersection with National Forest 1/ Titlow Hill Road. 1426 Comment
  UC52675  Phlox adsurgens Chesnut and Drew 1888-7-28 Humboldt Grouse Creek Comment
  UC572265  Phlox adsurgens H. S. Yates 1936-6-22 5849 Humboldt 4 mi ne Bald Mountain; China Flat Quad. Comment
  HSC103243  Phlox adsurgens Lisa D. Hoover 1998-7-2 244 Humboldt Six Rivers National Forest, Sims Mtn. Quad, Lower Trinity Ranger District, along Route 1 in vicinity of Whiting Springs and Last Chance Ridge 1463 Comment
  HSC60287  Phoradendron serotinum subsp. tomentosum Phyllis Krieg 1979-5-14 Humboldt Korbel Post Office 30 Comment
  SEINET3882874  Physaria kingii subsp. cobrensis C. Reed, Kathryn W. Rollins 1981-6-6 81229 Humboldt 8a, Charles Sheldon Wildlife Refuge, 43 miles northeast of Cedarville.; 0 Comment
  HSC18712  Physocarpus capitatus C. B. Wolf 1927-8-30 1227 Humboldt 2 mi. S of Petrolia on the Matole River near the road crossing the river Comment
  UC1198275  Picea sitchensis Joseph P. Tracy 1930-9-28 9197 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UCD134310  Picea sitchensis Roman Gankin 1965-8-6 551 Humboldt 1.3 miles south of Samoa, Samoa Peninsula. Comment
  HSC100690  Pimpinella apiodora Carl C. Marshall Jun 1886 298 Humboldt Bald Hills. Comment
  HSC1475  Pinus contorta Francis Winter 1960-5-14 Humboldt Samoa Peninsula, 6 mi. W of Arcata Comment
  LA6067  Pinus contorta Carl Epling; William Robison 1935-7-22 sn Humboldt Patrick's Point Comment
  UC400254  Pinus contorta subsp. contorta J. P. Tracy 1901-2-1 Humboldt opp. Eureka (sand hills of Ocean Beach at Samoa); Samoa, Ocean Beach Comment
  UC573158  Pinus contorta subsp. contorta H. S. Yates 1936-6-16 5660 Humboldt 1 mi sw Samoa 6 Comment
  POM282097  Pinus contorta var. contorta H. E. Parks 1931-05 s.n. Humboldt Samoa, Pine Barrens. Comment
  RSA286309  Pinus contorta var. contorta Robert F. Thorne 1974-7-29 45083 Humboldt Somoa Dunes. Comment
  HSC72802  Pinus monticola Gail Newton 1980-6-16 160 Humboldt Near Monks Camp. 1097 Comment
  UC55658  Pinus ponderosa P. E. Goddard 1901-7-12 67 Humboldt Hupa Comment
  JEPS79893  Piperia elongata Joseph P. Tracy 1925-7-12 7213 Humboldt near the South Fork Trinity River Valley; Northern Coast Ranges, Trinity River Valley 182 Comment
  CAS-BOT-BC136587  Piperia michaelii L. B. Kildale 1930-8-3 10495 Humboldt Field redacted by CAS, contact the data manager for more information Comment
  UC1196430  Piperia transversa Joseph P. Tracy 1949-8-4 18420 Humboldt Mud Springs Trinity Summit 1341 Comment
  HSC104428  Piperia transversa Greg O'Connell 2013-6-27 Humboldt Ridge west of Chaparral Mountain Comment
  JEPS79898  Piperia unalascensis Joseph P. Tracy 1932-7-12 10453 Humboldt near Corral Prairie (Trinity Summit); Trinity Summit 1584 Comment
  UC16264  Pisum sativum Joseph Burtt Davy and Walter C. Blasdale 1899-6-18 5607 Humboldt Blue Lakes Comment
  UC881326  Plagiobothrys bracteatus Alice Eastwood and John Thomas Howell 1937-6-23 4811 Humboldt Little Van Duzen River Comment
  UC526818  Plagiobothrys hispidulus Joseph P. Tracy 1932-7-10 10386 Humboldt wet meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 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
  JEPS60974  Plagiobothrys reticulatus var. reticulatus Joseph P. Tracy 1918-7-5 5010 Humboldt White Thorn Valley Northern Coast Ranges 304 Comment
  SEINET12275869  Plagiobothrys scouleri J. P. Tracy 1949-1 18315 Humboldt Fickle Hill, 6 mi SE of Arcata 610 Comment
  UC1222194  Plagiobothrys trachycarpus Joseph P. Tracy 1942-5-16 17355 Humboldt 1 mi ne Garberville 304 Comment
  HSC99993  Plantago coronopus J. P. Smith, & J. O. Sawyer 2009-10-4 12688 Humboldt Growing along rock pathway at Wedding Rock, Patrick's Point State Park 44 Comment
  JEPS85907  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
  HSC35345  Plantago lanceolata J. D. Ackerman, A. M. Montalvo 1975-6-22 484 Humboldt 6.4 mi. W of Dinsmore along Hwy. 36 Comment
  HSC79455  Plantago lanceolata Kenneth Clark 1980-4-18 603 Humboldt Above Dead Man's Gulch near parking access 137 Comment
  HSC84042  Plantago lanceolata C. J. Thomas 1983-5-9 29 Humboldt Adjacent to Hwy. overpass walkway near HSU 23 Comment
  UC154018  Plantago major J. P. Tracy 1910-10-1 3167 Humboldt immediate vicinity Eureka 0 Comment
  UC502932  Platystemon californicus Joseph P. Tracy 1932-6-26 10266 Humboldt Valley of South Yager Creek; Northern Coast Ranges, Valley of South Yager Creek 762 Comment
  CAS-BOT-BC91636  Platystemon californicus Joseph P. Tracy 1932-6-26 10266 Humboldt Northern Coast Region.. Valley of South Yager Creek. 762 Comment
  CAS-BOT-BC91643  Platystemon californicus Mark Bransom; Daniel Brown; Ron Hildebrandt; Nina Meiselman 1986-4-19 10 Humboldt Across Route 299 from White's Bar picnic area. 0.25 mile up roadbank. Comment
  CAS-BOT-BC91644  Platystemon californicus Kenneth Clark 1981-5-24 1390 Humboldt Sherlter Cove. Abalone Point. 15 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
  UC168998  Plectritis brachystemon Joseph P. Tracy 1905-4-30 2176 Humboldt Ocean Beach at Humboldt Bay Ocean Beach; Northern Coast Region, Humboldt Bay, Ocean Beach Comment
  UC176954  Plectritis brachystemon Joseph P. Tracy 1913-6-23 4279 Humboldt between Van Duzen River and Mad River (on Dinsmore's Ranch); Northern Coast Ranges, Dinsmore's Ranch 1066 Comment
  SEINET6995401  Plectritis ciliosa Wanda P. Vestal, A. G. Vestal 1937-6-23 s.n. Humboldt Open burnt timber, saddle near east end of Bald Hills, southeast of Orick. Comment
  UC1239574  Plectritis congesta Joseph P. Tracy 1916-4-30 4680 Humboldt Northern Coast Ranges, around Humboldt Bay, Salmon Creek Valley Salmon Creek Valley; Northern Coast Ranges, Salmon Creek Valley 60 Comment
  HSC77949  Plectritis congesta subsp. brachystemon Jimerson, Imper 1982-5-17 1439 Humboldt Near Ashfield Ridge. 822 Comment
  HSC21686  Plectritis congesta subsp. congesta J. R. Good 1964-5-3 37 Humboldt 0.10 mi. N of Fairhaven, 60 yds. W of road. Comment
  HSC90190  Pleuropogon refractus Larry Levine 1991-4-27 4911 Humboldt Maple Creek, L.W. Shatz Tree Farm Comment
  HSC93191  Pleuropogon refractus Claire Golec 1998-5-20 Humboldt Blue Lake Comment
  HSC10623  Poa annua Gene S. Van Horn 1962-5-2 10 Humboldt Near main house at 250 East 17th St., Arcata. 61 Comment
  HSC26358  Poa annua T. O. Osborne 1970-6-18 41 Humboldt Green Rock, 1-5/8 mi. N, 3/4 mi. W of Trinidad Lighthouse. Comment
  UC1103791  Poa bolanderi Joseph P. Tracy 1935-7-28 14334 Humboldt head of Brett Hole Trinity Summit 1828 Comment
  SACT001812  Poa bolanderi subsp. howellii H. Stinnett 1963-5-12 Humboldt open slopes Comment
  SEINET178314 Image available Poa compressa Joseph P. Tracy 1913-7-20 4378 Humboldt on Redwood Creek at the Berry crossing 300 Comment
  CAS-BOT-BC255119  Poa confinis Joseph P. Tracy 1927-4-24 7947 Humboldt Eureka, near bay shore 9 Comment
  SEINET10822289  Poa confinis Joseph P. Tracy 1905-4-30 Tracy 278 Humboldt Sand dunes of Ocean Beach. Comment
  UC205645  Poa douglasii Joseph P. Tracy 1917-5-30 4804 Humboldt sand dunes of Ocean Beach at Little River Comment
  UC525628  Poa howellii Joseph P. Tracy 1929-7-4 8619 Humboldt French Camp Ridge; Northern Coast Ranges 1066 Comment
  UCD90523  Poa kelloggii Harley P. Chandler 1901-5-1 1183 Humboldt Humboldt Bay. 30 Comment
  HSC38923  Poa macrantha Linda M. Barker 1976-5-13 1491 Humboldt 3 mi. W of Arcata. Comment
  SEINET190491 Image available Poa macrantha H. E. Parks 1934-5-1 4805 Humboldt Little River Lagoon Comment
  HSC73570  Poa pratensis Gail Newton 1980-7-14 1507 Humboldt Near Last Chance Ridge. 1219 Comment
  UC1103181  Poa pratensis subsp. pratensis Joseph P. Tracy 1913-6-19 4206 Humboldt opposite Buck Mt (Dinsmore's Ranch); Northern Coast Ranges, valley of Van Duzen River 762 Comment
  UCD92111  Poa trivialis Joseph P. Tracy 1950-6-8 18723 Humboldt Bear River Ridge. 609 Comment
  UC1988935  Pogogyne zizyphoroides Joseph P. Tracy 1938-7-5 16005 Humboldt Carlotta 5 miles east of town, open flat by old Strong's District School House 45 Comment
  JEPS43005  Polygala californica W. L. Jepson 1932-7-30 16459 Humboldt Bull Creek 121 Comment
  UC502963  Polygala californica Joseph P. Tracy 1927-7-24 8291 Humboldt Upper Mattole Northern Coast Ranges, Upper Mattole 152 Comment
  CAS-BOT-BC167574  Polygala cornuta var. cornuta Joseph P. Tracy 1936-8-30 15182 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC17454  Polygala cornuta var. cornuta Harley P. Chandler June, 1901 1502 Humboldt Klamath River North Coast Ranges 426 Comment
  UC672967  Polygonum davisiae Joseph P. Tracy 1935-7-30 14383 Humboldt Salmon Summit 2103 Comment
  HSC76039  Polygonum douglasii Overton, Butler 1979-8-2 12577 Humboldt Near Bret Hole, close to the town of Hoopa 1554 Comment
  UC672936  Polygonum douglasii Joseph P. Tracy 1936-8-2 15069 Humboldt French Camp Ridge 1066 Comment
  UCD100266  Polygonum douglasii Joseph P. Tracy 1947-8-24 17922 Humboldt Box Camp Trail, Trinity Summit. 1676 Comment
  HSC98067  Polygonum douglasii var. douglasii Cara Witte 2007-7-11 508 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  RSA152547  Polygonum kelloggii Joseph P. Tracy 1932-7-10 10379 Humboldt Trinity Summit Corral Prairie, in wet meadow Comment
  UC205473  Polygonum minimum Joseph P. Tracy 1919-9-18 5235 Humboldt Trinity Summit Northern Coast Ranges 1828 Comment
  CAS-BOT-BC109177  Polygonum paronychia Doris K. Kildale 1927-5-15 3165 Humboldt Beach at Cape Mendocino. Comment
  CAS-BOT-BC109183  Polygonum paronychia Greg de Nevers 2001-4-18 12252 Humboldt Lanphere-Christenson dunes, near Arcata. 9 Comment
  CDA22830  Polygonum paronychia J. Riddell 2002-4-19 35 Humboldt Mad River Beach dunes. Comment
  HSC17517  Polygonum paronychia J. R. Kahl 1962-4-26 18 Humboldt 1 mi. N of Samoa, 1000 yards from ocean. Comment
  RSA89770  Polygonum paronychia P. A. Munz 1954-7-25 19872 Humboldt On sand dunes at Humboldt Lighthouse south of Samoa. Comment
  JEPS79954  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1935-7-28 14316 Humboldt Devil's Hole Trinity Summit (head) 1828 Comment
  UC902112  Polygonum polygaloides subsp. kelloggii Joseph P. Tracy 1949-8-11 18480 Humboldt 2-6 mi s Grouse Mt.; Kinsey Ridge 1402 Comment
  CAS-BOT-BC421005  Polygonum spergulariiforme Henry M. Pollard 1945-8-26 s.n. Humboldt Between Orleans and Camp Creek, Klamath River Canyon Comment
  HSC28487  Polypodium californicum J. D. Ackerman 1973-3-27 53 Humboldt 1.5 mi. N of Manila Comment
  HSC1129  Polypodium californicum W. R. Supernaugh, Jr. 1964-12-11 13 Humboldt 200 yards S of Trinidad harbor Comment
  RSA46700  Polypodium californicum Doris K. Kildale 1928-2-19 4262 Humboldt Little River near Trindad Comment
  UCSB29342  Polypodium californicum Phelps, M. 1972-3-23 Humboldt 1.5 mi from Garberville along Old Briceland Rd., 1,500 yds. N of roadside 213 Comment
  CAS-BOT-BC76845  Polypodium glycyrrhiza Doris K. Kildale 1926-12-19 2876 Humboldt Briceland Bridge 1/2 mi. west of Garberville. Comment
  JEPS33247  Polypodium glycyrrhiza Lincoln Constance 1934-5-31 748 Humboldt Bull Creek Region, S. Fork Eel R. Comment
  SEINET10530419  Polypodium glycyrrhiza Mary Susan Taylor 1982-10-24 Taylor 5184 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  CAS-BOT-BC72083  Polypodium scouleri Ira L. Wiggins 1957-6-20 14133 Humboldt East side of highway, Trinidad Comment
  UC1472769  Polypodium scouleri Mrs. Carlotta C. Hall 1924-8-9 231 Humboldt Wilder ranch near Carlotta Comment
  HSC79377  Polypogon interruptus Kenneth Clark 1980-5-10 645 Humboldt Shelter Cove, bluffs of Point Delgada. 5 Comment
  UC1103193  Polypogon interruptus Joseph P. Tracy 1927-8-7 8320 1/2 Humboldt opposite mouth of Willow Creek Lack Pond (in Trinity River Valley); Northern Coast Ranges, Trinity River Valley, Willow Creek 152 Comment
  UC184147  Polypogon interruptus Joseph P. Tracy 1912-6-27 3709 Humboldt Eureka; Northern Coast Region, Eureka 0 Comment
  CAS-BOT-BC233069  Polypogon interruptus W. A. Silveus 1938-7-9 2961 Humboldt Along road through Redwoods, S of Dyerville Comment
  UC39747  Polypogon monspeliensis Harley P. Chandler June 1901 1532 Humboldt Klamath River; North Coast Ranges, Klamath River 426 Comment
  SEINET10927106  Polypogon monspeliensis Harley P. Chandler Chandler 1431 Humboldt 30 Comment
  HSC98825  Polystichum imbricans subsp. imbricans Cara Witte 2008-9-13 1039 Humboldt White Oak Opening. Along Kinsey Ridge. 1257 Comment
  HSC1153  Polystichum munitum Paul Shields 1955-6-10 Humboldt 3 mi. S of Weott Comment
  HSC12977  Polystichum munitum M. Athey, D. La Conte 1970-11-28 2 Humboldt HSU campus Comment
  RSA46706  Polystichum munitum Doris K. Kildale 1929-3-10 6944 Humboldt Bug Creek Comment
  HSC79147  Polystichum munitum C. J. Thomas 1984-9-25 119 Humboldt In Redwood forest immediately behind HSU fieldhouse 79 Comment
  UC528081  Polystichum munitum Ira L. Wiggins 1932-6-18 5871 Humboldt mouth of Little R. Comment
  UC492234  Populus trichocarpa Joseph P. Tracy 1932-4-24 9801 Humboldt South Fork of Eel River between Miranda and Redway; North Coast Ranges, South Fork of Eel River 91 Comment
  UC205456  Portulaca oleracea Joseph P. Tracy 1919-9-13 5194 Humboldt near Willows Creek (Trinity River Valley); Northern Coast Ranges, Trinity River Valley 152 Comment
  UC1103514  Potamogeton foliosus Joseph P. Tracy 1923-5-30 6247 Humboldt pond at mouth of Little River; Northern Coast Ranges 1 Comment
  UC672880  Potamogeton foliosus Joseph P. Tracy 1934-8-14 Humboldt South Fork of Eel River (midway between Miranda and Garberville) 91 Comment
  CAS-BOT-BC453764  Potamogeton natans Doris K. Kildale 1926-6-6 2124 Humboldt Gold Bluffs Comment
  BLMAR668  Potamogeton nodosus Jennifer Wheeler 2012-10-10 668 Humboldt Lacks Creek, Beaver Ridge Pond 914 Comment
  UC672876  Potamogeton pectinatus Joseph P. Tracy 1934-7-20 13462 Humboldt Big Lagoon 3 Comment
  SEINET11663841  Potamogeton pusillus S. K. Harris 1938-1 808 Humboldt Eel River, near Fernbridge Comment
  CAS-BOT-BC143077  Potentilla anserina subsp. pacifica L. R. Abrams 1916-7-18 6130 Humboldt Arcata to Trinidad Comment
  HSC97614  Potentilla glandulosa subsp. glandulosa Cara Witte 2007-5-31 156 Humboldt Along National Forest Route 1. Near Kinsey Ridge. 1.25 miles north of intersection with 4N09. 1308 Comment
  HSC44511  Potentilla gracilis Brad Klipfel 1973-7-1 115 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  JEPS47215  Potentilla gracilis Joseph P. Tracy 1932-7-10 10387 Humboldt wet meadow at Corral Prairie Klamath Mountains, Trinity Summit 1524 Comment
  CAS-BOT-BC158495  Potentilla gracilis var. gracilis Volney Rattan 1878-1-1 s.n. Humboldt Unspecified 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
  HSC95735  Prosartes smithii Steven Lee 2004-4-13 20 Humboldt Arcata Community Forest, hillside along Jolly Giant Creek Comment
  CAS-BOT-BC517510  Prosartes smithii Doris K. Kildale 1930-4-27 9563 Humboldt Prairie Creek, near Orick Comment
  HSC34641  Prosartes smithii Thomas Anthony 1975-4-8 5 Humboldt NE of HSU tennis courts on E side of Fern Lake Comment
  HSC97301  Prosartes smithii M. Mesler 2007-5-15 750 Humboldt Bald Hills Rd., 18.8 mi. from Hwy. 101, N side of rd. 915 Comment
  HSC39624  Prunus emarginata Thomas W. Nelson, Jane P. Nelson 1976-6-15 2728 Humboldt Along old trail from lookout to Blocksburg 1585 Comment
  UC1541680  Prunus virginiana var. demissa W. K. Parks July 1933 Humboldt South Fork Mountain Comment
  HSC90233  Pseudognaphalium ramosissimum Louise Watson, Jan Meninga Aug 1990 5 Humboldt Mad River Slough and Dunes. Co-operative management area Comment
  CAS-BOT-BC80117  Pseudotsuga menziesii Carl B. Wolf 1936-10-29 1785 Humboldt Old Coast Road 7 miles so. of Honeydew P.O. 304 Comment
  HSC1589  Pseudotsuga menziesii var. menziesii Francis Winter 1960-5-7 Humboldt Samoa Peninsula 6 mi W of Arcata Comment
  HSC74451  Pseudotsuga menziesii var. menziesii Gail Newton 1980-8-10 1991 Humboldt Near Blake Mtn. 1798 Comment
  UC169084  Psilocarphus oregonus Joseph P. Tracy 1912-7-30 3890 Humboldt opposite Buck Mountain; Northern Coast Ranges, Valley of Van Duzen River 762 Comment
  CAS-BOT-BC361930  Psilocarphus tenellus M. S. Jussel 1931-5-2 s.n. Humboldt Sylvandale on road to Garberville Comment
  CAS-BOT-BC72557  Pteridium aquilinum Doris Kildale; L. B. Kildale 1930-9-9 10399 Humboldt Bald Mt. 914 Comment
  HSC1159  Pteridium aquilinum var. pubescens D. E. Anderson 1961-8-11 1728 Humboldt E of Humboldt State College campus. 30 Comment
  HSC59503  Pyrola asarifolia M. A. Ericksen 1979-5-29 306 Humboldt Beside Patrick's Point Dr. Comment
  HSC41317  Pyrola picta Brad Klipfel 1974-9-2 535 Humboldt Horse Mtn. Comment
  UC1197584  Pyrola picta Joseph P. Tracy 1949-7-19 18377 Humboldt Grouse Mountain, at Friday Camp Grouse Mountain; , Friday Camp 1219 Comment
  UC56314  Pyrola picta Joseph Burtt Davy 1899-6-19 5644 Humboldt Hoopa Mountain Comment
  UC8128  Quercus X morehus Harley P. Chandler June, 1901 1454 Humboldt Klamath River North Coast Ranges 304 Comment
  HSC99031  Quercus chrysolepis Cara Witte 2008-7-3 827 Humboldt Friday Ridge Road/ 6N08. Approximately 1 mile north of intersection with National Forest 1. 1567 Comment
  UC1196534  Quercus chrysolepis Joseph P. Tracy 1911-6-8 3446 Humboldt near Mouth of Willow Creek; Northern Coast Ranges, Valley of Trinity River 152 Comment
  CAS-BOT-BC94310  Quercus garryana Joseph P. Tracy 1941-3-26 16845 Humboldt South Fork of Trinity River: mountain slopes W of its mouth Comment
  UC1193252  Quercus garryana P. Zinke 1950-8-3 144 Humboldt 914 Comment
  HSC98850  Quercus garryana var. garryana Cara Witte 2008-9-13 1037 Humboldt Forest Service Road 4N06. 1/4 mile east of intersection with National Forest 1. Cow Creek Ridge. 1283 Comment
  HSC61194  Quercus kelloggii Jimerson, J. Pageau 1979-5-24 474 Humboldt Near Orleans 143 Comment
  HSC8263  Quercus kelloggii Francis Winter 1960-4-24 Humboldt 1.0 mi. N of Redwood Creek Ranch 396 Comment
  UC1196357  Quercus kelloggii Joseph P. Tracy 1940-10-15 16780 Humboldt Willow Creek Trinity River Valley 152 Comment
  UC54717  Quercus kelloggii Mrs. M. H. Manning Apr 1902 Humboldt near Hupa Comment
  UC54718  Quercus kelloggii P. E. Goddard 1901-7-12 64 Humboldt Hupa Comment
  CAS-BOT-BC104335  Quercus sadleriana Milo S. Baker 1947-8-10 11896 Humboldt 16 mi NE of Hoopa along trail to Trinity Summit from end of forest road 1463 Comment
  HSC72811  Quercus vacciniifolia Gail Newton 1980-7-22 1686 Humboldt Near Devils Backbone 1554 Comment
  UC1196505  Quercus wislizeni Joseph P. Tracy 1925-8-23 7246 Humboldt North Dobbyn Creek Northern Coast Ranges 152 Comment
  UC1196241  Ranunculus californicus Joseph P. Tracy 1901-4-14 1024 Humboldt Humboldt Bay Northern Coast Region (sand dunes of ocean beach) Comment
  HSC26334  Ranunculus californicus var. californicus Thomas W. Nelson 1971-4-12 376 Humboldt S spit of Humboldt Bay. Comment
  UC1103010  Ranunculus flammula Joseph P. Tracy 1930-8-3 9149 Humboldt pond near Little Van Duzen River; Northern Coast Ranges, Buck Mountain 762 Comment
  UC668065  Ranunculus flammula Joseph P. Tracy 1937-7-17 15436 Humboldt Eureka; vernal pool 45 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
  UC1196219  Ranunculus occidentalis J. P. Tracy 1901-6-23 1182 Humboldt Immediate vicinity of Eureka 0 Comment
  HSC31173  Ranunculus occidentalis var. occidentalis D. E. Anderson 1972-6-20 5748 Humboldt Along the Redwood Valley-Hoopa Rd., E of the summit. Comment
  RSA20857  Ranunculus orthorhynchus var. platyphyllus Carl B. Wolf 1937-6-18 8897 Humboldt 1/2 miles E of Alton. 21 Comment
  UCD97071  Ranunculus parviflorus John Thomas Howell 1954-4-25 29153 Humboldt Arcata. Comment
  UC1116207  Ranunculus pusillus Joseph P. Tracy 1942-5-16 17356 Humboldt Garberville 304 Comment
  POM118709  Ranunculus repens Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  HSC18179  Ranunculus repens var. repens Harvey Doerksen 1962-5-8 22 Humboldt 3 mi. W of Blue Lake, fork of Lindsay Creek and Mad River Comment
  HSC31570  Ranunculus uncinatus var. parviflorus Glenn McGourty 1974-5-11 40 Humboldt Timber trail off Maple Creek Rd. in Kneeland 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
  HSC89520  Raphanus sativus M. Roantree 1985-6-11 86 Humboldt E side of Trinidad Head, near entrance Comment
  UC668157  Rhamnus californica Joseph P. Tracy 1934-7-9 13358 Humboldt Dobbyn Creek 152 Comment
  UC902203  Rhamnus californica Joseph P. Tracy 1946-7-13 17616 Humboldt 5 mi e Carlotta (open flat by old Strong's District School House) 60 Comment
  UC175733  Rhamnus purshiana Joseph P. Tracy 1912-9-1 3983 Humboldt Eureka Northern Coast Region 0 Comment
  UC199231  Rhamnus purshiana V. King Chesnut Jul 1888 Humboldt Mad River Comment
  UC592852  Rhamnus purshiana Doris Kildale Gillespie 1932-9-1 Humboldt 1 block n Henderson St. (on S Street, Eureka); Eureka 30 Comment
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Mar 1 2013
  HSC36263  Rhododendron columbianum John Rehling 1974-8-20 25 Humboldt Big Lagoon Bog Comment
  RSA471003  Rhododendron macrophyllum E. S. Spalding 1925-04 s.n. Humboldt Arcata. Comment
  UC275301  Rhododendron occidentale R. M. Holman 1925-7-23 Humboldt Big Lagoon Comment
  HSC44449  Rhododendron occidentale var. paludosum Brad Klipfel 1975-5-30 655 Humboldt N of Horse Mtn. Comment
  HSC54518  Rhododendron occidentale var. paludosum Overton, Butler 1979-7-23 9443 Humboldt Near Horse Mountain Mine, close to the town of Willow Creek 1295 Comment
  HSC91896  Rhododendron occidentale var. paludosum E. Mackey 1987-5-19 Humboldt Patrick's Point State Park, on road to Palmer's Point Comment
  HSC96519  Rhododendron occidentale var. paludosum Gordon Leppig 1998-5-11 759 Humboldt Big Lagoon County Park. 3 Comment
  CAS-BOT-BC92878  Ribes bracteosum Joseph P. Tracy 1938-8-14 16105 Humboldt Willow Creek Canyon, along Trinity Highway. 762 Comment
  RSA170225  Ribes bracteosum Joseph P. Tracy 1918-5-28 4939 Humboldt High Prairie Creek. 915 Comment
  UC667032  Ribes bracteosum Joseph P. Tracy 1938-8-14 16105 Humboldt along Trinity Highway Willow Creek Canyon 762 Comment
  CAS-BOT-BC108906  Ribes divaricatum var. pubiflorum Joseph P. Tracy 1939-4-27 16226 Humboldt Mouth of Little River. 6 Comment
  UCSB24363  Ribes divaricatum var. pubiflorum Tracy, Joseph 1939-4-27 Humboldt mouth of Little River; at edge of sand dunes 6 Comment
  UC1198951  Ribes inerme var. klamathense Joseph P. Tracy 1935-5-30 13915 Humboldt Willow Creek Trinity River Valley 152 Comment
  CAS-BOT-BC176807  Ribes laxiflorum Doris K. Kildale 1927-4-10 3080 Humboldt Prairie Creek, north of Orick Comment
  HSC97283  Ribes laxiflorum M. Mesler 2007-3-23 745 Humboldt Near Trinidad, trail from Mill Creek to Elk Head. 61 Comment
  CAS-BOT-BC173365  Ribes lobbii J. H. Thomas 1949-6-13 912 Humboldt Along trail between Le Perron Flat and Whitey's Peak. Six Rivers National Forest. (East of town of Orleans) 1371 Comment
  JEPS49355  Ribes lobbii W. L. Jepson 1902-7-16 2044 Humboldt Trinity Summit 2133 Comment
  UC183575  Ribes lobbii Joseph P. Tracy 1913-6-17 4189 Humboldt near the summit Buck Mountain; Northern Coast Ranges 1676 Comment
  UC205483  Ribes lobbii Joseph P. Tracy 1919-9-18 5247 Humboldt Trinity Summit Northern Coast Ranges 1524 Comment
  UC902100  Ribes lobbii Joseph P. Tracy 1949-6-5 18298 Humboldt ne Hawkins Bar; Trinity Summit Range, Happy Camp Mountain 1280 Comment
  UCD102249  Ribes lobbii Gordon Leppig 1998-6-1 866 Humboldt Horse Mountain. Buck Flat, Titlow Hill Rd. @ Ammon Ridge Rd. 1524 Comment
  HSC58106  Ribes marshallii G. L. Clifton, Griswold 1979-8-1 12041 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  SBBG72058  Ribes menziesii H. E. Parks -Apr-1933 4402 Humboldt McNeils Crk, vicinity of Trinidad Comment
  UC1198930  Ribes menziesii Joseph P. Tracy 1938-4-5 15707 Humboldt North Fork of Mad River (its eastern limit here) Mad River 304 Comment
  UC154119  Ribes menziesii J. P. Tracy 1904-7-31 2130 Humboldt immediate vicinity Eureka 0 Comment
  UC154122  Ribes menziesii J. P. Tracy 1904-7-31 2131 Humboldt immediate vicinity Eureka 0 Comment
  RSA0021770  Ribes menziesii H. E. Parks 1933-04 4402 Humboldt McNeils Creek, vicinity of Trinidad. Comment
  HSC103114  Ribes nevadense M. Mesler, Jen Kalt 2010-8-6 839 Humboldt Trail to Trinity Summit from Water Dog Lakes (6E08, Horse Ridge National Recreation Trail) 1833 Comment
  HSC56051  Ribes nevadense G. L. Clifton, Griswold 1979-7-31 11652 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1719 Comment
  UCD102415  Ribes nevadense Hemphill, D. V. 1972-10-8 7033 Humboldt Near Bennett Peak and Hyampom. 1219 Comment
  HSC74469  Ribes roezlii Gail Newton 1980-7-23 1719 Humboldt Near Packsaddle Ridge 1463 Comment
  JEPS49186  Ribes roezlii W. L. Jepson 1902-6-19 1889 Humboldt near Garberville; Ft. Seward Ranch Ridge (= Mail Ridge) 1066 Comment
  UC183753  Ribes roezlii Joseph P. Tracy 1913-3-9 4012 Humboldt near Hydesville; Northern Coast Region, Van Duzen River 60 Comment
  HSC77394  Ribes roezlii var. cruentum L. P. Janeway 1983-4-16 236 Humboldt Along Titlow Hill Rd. 100 m S from Hwy. 299, Berry Summit 854 Comment
  UC249624  Ribes roezlii var. cruentum Joseph P. Tracy 1922-4-30 6041 Humboldt Three Creeks, along road between Three Creeks and mouth of Willow Creek Northern Coast Ranges 670 Comment
  UCD102483  Ribes roezlii var. cruentum Roman Gankin; W. R. Hildreth 1966-3-15 697 Humboldt State Highway 96, 2 miles north of Weitchpec. Comment
  CAS-BOT-BC212525  Ribes sanguineum J. H. Thomas 1949-6-13 914 Humboldt Along trail between Le Perron Flat and Whiteys Peak, Six Rivers National Forest, east of town of Orleans. 1371 Comment
  HSC20336  Ribes sanguineum E. W. Styskel 1963-3-3 2 Humboldt 3 mi. SE of Korbel on Snow Camp Rd. 290 Comment
  UC1280968  Ribes sanguineum H. E. McMinn 1934-6-22 3713 Humboldt n Eureka; Sea Cliff Comment
  HSC44600  Ribes viscosissimum Brad Klipfel 1973-6-10 103 Humboldt Along ridge trail SE of N Trinity Mtn. 1829 Comment
  BLMAR77  Rosa gymnocarpa Jennifer Anthony-Wheeler 1994-6-2 77 Humboldt IAQUA, growing along logging rd 3/4mi from beginning of rd 853 Comment
  CAS-BOT-BC146526  Rosa gymnocarpa Roxana S. Ferris 1955-7-11 12971 Humboldt E of summit near Willow Creek, along U. S. Highway 299 Comment
  HSC58243  Rosa gymnocarpa G. L. Clifton, Griswold 1979-8-2 12413 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  HSC99447  Rosa gymnocarpa K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-7 97 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC527562  Rosa gymnocarpa C. B. Wolf 1931-8-30 2376 Humboldt 11 mi above Blue Lake (on Lord Ellis Rd to Willow Creek) 304 Comment
  UC914721  Rosa gymnocarpa Ira L. Wiggins 1930-7-22 4695 Humboldt along bank of creek between Blue Lake and Willow Creek; Redwood Creek Comment
  HSC98694  Rosa gymnocarpa var. gymnocarpa Cara Witte 2007-6-5 213 Humboldt Near Grouse Mountain. Along Forest Service Road 4N32. Approximately 1 mile south of intersection with 5N04. 1434 Comment
  RSA22642  Rosa nutkana H. E. Parks, Susan T. Parks 1937-06 24021 Humboldt Spruce Cove, Trinidad. Comment
  CAS-BOT-BC146877  Rosa rubiginosa Doris K. Kildale 1926-8-31 2608 Humboldt Union Mattole, Mattole River Valley Comment
  RSA43337  Rubus laciniatus H. M. Pollard 1948-8-9 s.n. Humboldt New [near] Orleans. Comment
  JEPS44748  Rubus leucodermis W. L. Jepson 1902-7-25 2122 Humboldt Supply Creek , Supply Creek (Hupa Valley) 243 Comment
  HSC102093  Rubus parviflorus M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 996 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC59138  Rubus parviflorus Terry Roth 1979-5-20 62 Humboldt Along old logging road that follows Jolly Giant Creek. 79 Comment
  UC666864  Rubus parviflorus Joseph P. Tracy 1936-8-7 15104 Humboldt head of Little Hors-Linto Creek Trinity Summit 1524 Comment
  HSC22039  Rubus spectabilis B. D. Rogers, D. E. Anderson 1965-4-1 412 Humboldt 4 mi. SE of Arcata along Jacoby Creek Comment
  HSC34629  Rubus spectabilis A. M. Montalvo 1975-4-9 203 Humboldt Arcata Community Forest about .25 mi. up Trail #3 46 Comment
  HSC100639  Rubus ursinus Carl C. Marshall Mar 1886 138 Humboldt Everywhere. Comment
  HSC34808  Rubus ursinus David Peters 1975-4-9 5 Humboldt .1 mi. E of Kirkpatrick Quarry Rd. on Jacoby Cr. Rd. Comment
  HSC57022  Rubus ursinus Overton, Butler 1979-7-24 9637 Humboldt Near Friday Camp, close to the town of Willow Creek. 1250 Comment
  UCD17625  Rubus ursinus H. Olmo; T. S. Mallah 1946-6-26 46- 039 Humboldt California. Humboldt County: on left side of U.S. 101 going north, about 0.5 miles north of Rock Creek Crossing. Comment
  UC672930  Rumex acetosella Joseph P. Tracy 1932-7-14 10530 Humboldt Corral Prairie Trinity Summit 1584 Comment
  HSC36232  Rumex acetosella John Rehling 1975-5-7 62 Humboldt Along Alliance Rd. Comment
  HSC40030  Rumex acetosella Thomas W. Nelson, Jane Nelson 1976-6-22 2876 Humboldt On SW-facing slope at Goat Mtn. lookout 1666 Comment
  JEPS39876  Rumex crispus Lincoln Constance 1934-5-26 659 Humboldt near Founder's Tree (North Dyerville Flat grove); South Fork Eel River, Bull Creek Region, North Dyerville Fla 48 Comment
  UC183585  Rumex obtusifolius Joseph P. Tracy 1913-6-1 4077 Humboldt Eureka Northern Coast Region 0 Comment
  UC55520  Rumex obtusifolius Joseph Burtt Davy 1899-7-30 6169 B Humboldt near Ferndale Comment
  UC1116232  Sagina apetala Joseph P. Tracy 1948-4-11 17965 Humboldt 2 mi. e. Dyerville (Eel R.); Eel R. 48 Comment
  POM161039  Sagina procumbens Joseph P. Tracy 1920-6-6 5338 Humboldt Freshwater Creek near Wrangletown. 30 Comment
  HSC32142  Sagina saginoides D. E. Anderson, Thomas W. Nelson, S. Dowty 1972-6-14 5609 Humboldt Mt. Lassic and two smaller peaks to immediate E 1768 Comment
  UC162362  Salicornia virginica Joseph P. Tracy 1911-10-22 3550 Humboldt Eureka Northern Coast Region, Humboldt Bay Region 0 Comment
  CAS-BOT-BC129899  Salix bonplandiana Joseph P. Tracy 1935-6-22 13960 Humboldt Mouth of Larrabee Creek, on Eel River 45 Comment
  POM214871  Salix exigua Carleton R. Ball 1932-5-17 1335 Humboldt Above Trinity River. 1 mile below bridge on Trinity Hwy. 152 Comment
  POM220112  Salix exigua H. E. Parks, Joseph P. Tracy 1931-5-17 971 Humboldt Mouth of Willow Creek at Trinity River. 150 Comment
  UC469444  Salix exigua var. hindsiana Joseph P. Tracy 1931-9-7 9640 Humboldt at Willow Creek Trinity River Valley; Northern Coast Ranges, Trinity River Valley 152 Comment
  UC512020  Salix exigua var. hindsiana C. R. Ball, H. E. Parks, and J. P. Tracy 1932-5-17 1337 Humboldt at Willow Creek (Graham Ranch) near its junction with Trinity R. 152 Comment
  UC512026  Salix exigua var. hindsiana Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-17 1332 Humboldt near bridge on Trinity Hwy. (in ... channel of Trinity R.) 152 Comment
  RSA0038361  Salix hindsiana var. leucodendroides Harold E. Parks 1931-8-25 01061 Humboldt Blue Slide, Van Duzen River. 90 Comment
  CAS-BOT-BC106850  Salix hookeriana Harold E. Parks 1931-5-12 0954 Humboldt Samoa, Humboldt Bay Comment
  CAS-BOT-BC107710  Salix hookeriana L. R. Abrams 1916-7-18 6127 Humboldt Arcata to Trinidad Comment
  CAS-BOT-BC107724  Salix hookeriana Alice Eastwood 1923-8-14 12321 Humboldt Samoa Comment
  CHSC9647  Salix hookeriana E. L. Smith 1971-8-17 1018 Humboldt On the Van Duzen River ca. 18 mi s of Eureka. Comment
  HSC19958  Salix hookeriana H. E. Parks 1931-5-12 956 Humboldt Samoa, Humboldt Bay 0 Comment
  HSC40869  Salix hookeriana Linda M. Barker 1976-3-22 1340 Humboldt Lanphere-Christensen Dunes, 3 mi. W of Arcata. Comment
  HSC41657  Salix hookeriana Thomas W. Nelson 1977-11-3 3759 Humboldt Beside Martin's Slough just upstream from Eureka Muni Golf Course Comment
  HSC96362  Salix hookeriana Gordon Leppig 1999-7-9 1184 Humboldt Big Lagoon County Park; Big Lagoon Bog 3 Comment
  LA208757  Salix hookeriana Harold E. Parks; 1931-5-28 999 Humboldt Little River Lagoon, Trinidad; at sea level Comment
  RSA34247  Salix hookeriana Doris K. Kildale 1927-5-14 3190 Humboldt Big Lagoon. Comment
  SBBG27479  Salix hookeriana H. E. Parks 1931-5-28 999 Humboldt Little River Lagoon Comment
  UC1225922  Salix hookeriana Joseph P. Tracy 1947-7-2 17758 Humboldt 6 mi s.e. Arcata (Fickle Hill); Fickle Hill 609 Comment
  UC275504  Salix hookeriana Joseph P. Tracy 1925-11-8 7312 Humboldt Fieldbrook Northern Coast Ranges, Fieldbrook 60 Comment
  UC275525  Salix hookeriana Joseph P. Tracy 1924-9-21 6884 Humboldt Eureka Northern Coast Ranges, Eureka 0 Comment
  UC470429  Salix hookeriana Joseph P. Tracy 1931-9-20 9687 Humboldt Trinidad Northern Coast Region 60 Comment
  UC470438  Salix hookeriana Joseph P. Tracy 1931-9-19 9674 Humboldt on Van Duzen R. Alton; Northern Coast Region, , Van Duzen R. 30 Comment
  UC470441  Salix hookeriana Joseph P. Tracy 1931-5-3 9356 Humboldt near Luffenholz Creek (near ocean); Northern Coast Region, Trinidad 60 Comment
  UC481349  Salix hookeriana Harold E. Parks 1931-5-12 953 Humboldt Samoa Comment
  UC481355  Salix hookeriana Harold E. Parks 1931-5-12 956 Humboldt Samoa Humboldt Bay, Samoa Comment
  UC490458  Salix hookeriana Joseph P. Tracy 1932-5-10 9952 Humboldt Mattole R. near Petrolia; North Coast Region, Mattole R. 15 Comment
  UC506346  Salix hookeriana Joseph P. Tracy 1933-3-19 10925 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R. 91 Comment
  UCD111039  Salix hookeriana Linda M. Barker 1976-4-30 1416 Humboldt 3 miles west of Arcata. Comment
  SD1012  Salix laevigata Mrs. H. P. Bracelin 1931-5-1 272 Humboldt Sylvandale, between Miranda and Myers, South Fork of Eel River Comment
  UC490517  Salix laevigata var. congesta Joseph P. Tracy 1932-5-22 10122 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  RSA0030805  Salix lasiandra H. E. Parks, Joseph P. Tracy 1931-5-17 0966 Humboldt Willow Creek at Trinity River. 150 Comment
  UC1196583  Salix lasiandra subsp. lasiandra Joseph P. Tracy 1941-3-26 16815 Humboldt opposite mouth of Willow Creek Lack Pond; Trinity River Valley Comment
  UC481261  Salix lasiandra subsp. lasiandra Harold E. Parks 1931-5-20 991 Humboldt Blue Lake Mad R., Blue Lake 15 Comment
  UC492331  Salix lasiandra subsp. lasiandra Harold E. and Susan T. Parks 1932-4-10 1101 Humboldt Little River Lagoon Trinidad; , Little River Lagoon Comment
  JEPS12978  Salix lasiandra var. lasiandra Joseph P. Tracy 1932-4-17 9797 Humboldt Alton to Fortuna (Eel River); Northern Coast Region, Eel river 15 Comment
  CAS-BOT-BC107106  Salix lasiolepis Joseph P. Tracy 1933-5-14 12184 Humboldt Berry's Mt., on TRinity Highway 762 Comment
  CAS-BOT-BC107602  Salix lasiolepis Joseph P. Tracy; Harold E. Parks 1933-3-19 11005 Humboldt On Van Duzen River, 2 miles west of Bridgeville 228 Comment
  CAS-BOT-BC107603  Salix lasiolepis Joseph P. Tracy; Harold E. Parks; Carleton R. Ball 1932-5-12 1236 Humboldt Gravelly floodplain of the Van Duzen River at Blue Slide 91 Comment
  CAS-BOT-BC107625  Salix lasiolepis Joseph P. Tracy 1934-3-25 13167 Humboldt Blue Slide, on Van Duzen River 91 Comment
  CAS-BOT-BC107648  Salix lasiolepis Joseph P. Tracy 1932-10-8 10866 Humboldt Berry's Mt. on Trinity Highway 762 Comment
  JEPS12973  Salix lasiolepis Joseph P. Tracy 1932-4-24 9803 Humboldt between Miranda and Redway (S. Fork Eel River); North Coast Ranges 91 Comment
  JEPS13081  Salix lasiolepis Joseph P. Tracy 1939-8-5 16392 Humboldt Van Duzen River at Dinsmore's 737 Comment
  JEPS14769  Salix lasiolepis Joseph P. Tracy 1932-10-8 10867 Humboldt on Trinity Hwy. Berry's Mt. 762 Comment
  LA208772  Salix lasiolepis Harold E. Parks; Joseph P. Tracy 1931-5-17 976 Humboldt mouth of Willow Creek at Trinity River 150.0 Comment
  POM219355  Salix lasiolepis Joseph P. Tracy 1931-9-26 9695 Humboldt Redwood Creek, at Berry's 274 Comment
  UC1196611  Salix lasiolepis Joseph P. Tracy 1926-8-12 7762 Humboldt Redwood Creek, at Berry's 274 Comment
  UC1196649  Salix lasiolepis Joseph P. Tracy 1933-11-29 13129 Humboldt between Miranda and Redway (S. Fork Eel R.); North Coast Ranges, S. Fork Eel R. 91 Comment
  UC176177  Salix lasiolepis Joseph P. Tracy 1912-7-26 3840 Humboldt Kneeland Prairie, Lawrence Creek Northern Coast Ranges, Kneeland Prairie, Lawrence Creek 762 Comment
  UC469404  Salix lasiolepis H. E. Parks and Joseph P. Tracy 1931-5-23 9436 Humboldt vicinity of Trinidad (near R.R. Station); Northern Coast Region 60 Comment
  UC469425  Salix lasiolepis Joseph P. Tracy 1931-3-31 9328 Humboldt at Berry's Redwood Creek; Northern Coast Ranges, Redwood Creek 274 Comment
  UC490543  Salix lasiolepis Joseph P. Tracy 1932-5-10 9958 Humboldt near Petrolia; Northern Coast Ranges, Mattole River 15 Comment
  UC490584  Salix lasiolepis Joseph P. Tracy 1932-6-4 10128 Humboldt Bridgeville 228 Comment
  UC511990  Salix lasiolepis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1241 Humboldt Blue Slide Van Duzen River 91 Comment
  UC519328  Salix lasiolepis Joseph P. Tracy 1933-5-14 12180 Humboldt Willow Creek, near county road bridge Trinity River Valley 152 Comment
  UC519339  Salix lasiolepis Joseph P. Tracy 1933-5-14 12177 Humboldt Willow Creek Trinity River Valley (mouth) 152 Comment
  CAS-BOT-BC107405  Salix lasiolepis var. lasiolepis Doris K. Kildale 1926-3-28 1677 Humboldt Redwood Creek at Berry's Comment
  POM219248  Salix lucida subsp. lasiandra H. E. Parks, Susan T. Parks 1931-8-15 1078 Humboldt Blue Slide. Van Duzen River. 100 Comment
  JEPS12941  Salix melanopsis Joseph P. Tracy 1931-6-14 9580 Humboldt Van Duzen River Alton; Northern Coast Ranges 30 Comment
  POM219685  Salix melanopsis H. E. Parks 1931-5-14 965 Humboldt Van Duzen River between Alton and Carlotta. 15 Comment
  SBBG57957  Salix melanopsis H. E. Parks 1931-5-14 964 Humboldt Van Duzen River between Alton and Carlotta 15 Comment
  SD922  Salix melanopsis Mrs. H. P. Bracelin 1931-5-2 283 Humboldt East of Redwood Highway, 6 km south of Alton, flood plain of creek 20 Comment
  UC1196565  Salix melanopsis H. E. Parks and Joseph P. Tracy 1931-3-26 9299 Humboldt Van Duzen R. near Alton; Northern Coast Ranges, Van Duzen R. 30 Comment
  UC469451  Salix melanopsis Joseph P. Tracy 1931-6-14 9581 Humboldt Van Duzen R., Alton Alton; Northern Coast Region, Van Duzen R., Alton 30 Comment
  UC470454  Salix melanopsis Joseph P. Tracy 1931-9-7 9646 Humboldt Trinity R. Valley at Willow Creek; Northern Coast Ranges, Trinity R. Valley, Willow Creek 152 Comment
  UC481297  Salix melanopsis Harold E. Parks and Joseph P. Tracy 1931-5-17 967 Humboldt mouth of Willow Creek at Trinity R.; Willow Creek 150 Comment
  UC511996  Salix melanopsis Carleton R. Ball, Harold E. Parks, and Joseph P. Tracy 1932-5-12 1237 Humboldt Van Duzen R. at Blue Slide; Van Duzen R. 91 Comment
  SEINET7545185  Salix melanopsis H. E. Parks 1931-1 0962 Humboldt Van Duzen River between Alton and Carlotta 5 Comment
  RSA0030801  Salix parksiana H. E. Parks 1931-5-14 0961 Humboldt Ban Duzen River between Alton and Carlotta 15 Comment
  CAS-BOT-BC129248  Salix piperi Joseph P. Tracy 1937-8-12 15658 Humboldt Snow Camp, most gourn in and around meadow. 1402 Comment
  CAS-BOT-BC129131  Salix scouleriana Harold E. Parks 1931-5-14 957 Humboldt Little Larabee Bridge, Van Duzen River 450 Comment
  CAS-BOT-BC129136  Salix scouleriana Joseph P. Tracy 1932-7-17 10694 Humboldt Rocky exposed places, head of Devil's Hole - Trinity Summit, Klamath Mountains 1828 Comment
  CAS-BOT-BC129141  Salix scouleriana H. E. Parks 1933-1-24 1353 Humboldt Spruce Cove (Parks Ranch), Trinidad Comment
  CAS-BOT-BC129174  Salix scouleriana W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula near R.R. Comment
  HSC20079  Salix scouleriana J. P. Tracy 1933-4-2 10957 Humboldt Willow Creek Canyon 610 Comment
  JEPS89298  Salix scouleriana Joseph P. Tracy 1937-3-21 15236 Humboldt Van Duzen R. near Grizzly Creek; Van Duzen R. 91 Comment
  UC1196704  Salix scouleriana Joseph P. Tracy 1933-3-26 10942 Humboldt Big Lagoon Northern Coast Region, Big Lagoon 6 Comment
  UC481259  Salix scouleriana Harold E. Parks 1931-5-20 994 Humboldt Blue Lake Mad R., Blue Lake 15 Comment
  UC481260  Salix scouleriana Harold E. Parks 1931-5-20 994 Humboldt Blue Lake Mad R., Blue Lake 15 Comment
  UC490503  Salix scouleriana Joseph P. Tracy 1932-2-7 9770 Humboldt Scotia Northern Coast Ranges, Scotia 30 Comment
  CAS-BOT-BC128988  Salix sitchensis Harold E. Parks; Carleton R. Ball; Joseph P. Tracy 1932-5-12 1230 Humboldt Floodplain of the Van Duzen River, 1 1/2 miles east of Alton 30 Comment
  HSC90388  Salix sitchensis Jean Hanson 1980-3-8 7 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka, W end of island Comment
  UC469469  Salix sitchensis Joseph P. Tracy 1931-10-3 9708 Humboldt on Van Duzen R. Blue Slide; Northern Coast Ranges, Van Duzen R., Blue Slide 91 Comment
  UC1222585  Salsola tragus Joseph P. Tracy 1950-8-20 19323 Humboldt 8 mi. below Orleans (Klamath R. near Slate Creek, at Big Bar); Klamath R. 121 Comment
  RSA113848  Sambucus callicarpa E. K. Balls 1956-2-16 21457 Humboldt Near first overhead bridge on road to Crannell, 0.5 miles east of Highway 101 15 Comment
  HSC58141  Sambucus nigra subsp. caerulea Gilbert Muth 1979-8-1 12164 Humboldt Near Horse Trail Ridge, close to the town of Hoopa 1677 Comment
  HSC69779  Sambucus racemosa var. racemosa R. Kalal 1979-4-21 82 Humboldt 0.4 mi. E of Table Bluffs County Park. 15 Comment
  UC1225816  Sambucus racemosa var. racemosa Joseph P. Tracy 1947-8-24 17912 Humboldt e Box Camp; Trinity Summit 1676 Comment
  POM256866  Sanicula arctopoides Joseph P. Tracy 1936-5-30 14838 Humboldt Near Samoa on Humboldt Bay. 6 Comment
  CAS-BOT-BC223252  Sanicula bipinnatifida M. S. Jussel 1931-5-2 s.n. Humboldt 6 miles from Garberville Comment
  CAS-BOT-BC223253  Sanicula bipinnatifida Joseph P. Tracy 1938-7-4 15985 Humboldt Valley of South Yager Creek 762 Comment
  HSC23089  Sanicula bipinnatifida D. E. Anderson 1965-5-1 3564 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  HSC81674  Sanicula crassicaulis Thomas W. Nelson, Jane P. Nelson 1980-7-13 6065 Humboldt Along the road from Dinsmore to Anderson Ford-McKeown Ranch Rd. 762 Comment
  UC642273  Sanicula graveolens Joseph P. Tracy 1932-7-12 10465 Humboldt Trinity Summit, Head of Brett Hole Brett Hole; Trinity Summit, Brett Hole 1828 Comment
  CHSC60487  Sanicula tracyi Lisa D. Hoover 1992-6-16 Humboldt Six Rivers National Forest. East side of Whiting Ridge off Route 1 before 'Last Chance Ridge' approximately 27 miles off Hwy 299. 1267 Comment
  HSC48975  Sanicula tracyi Bruce Miner, Bob Easton 1979-5-29 Humboldt At east approach to State Route 36 bridge over Van Duzen River 747 Comment
  HSC65888  Sanicula tracyi R. York 1980-5-23 622 Humboldt Near Buck Mtn. 1524 Comment
  UC647525  Sanicula tracyi Joseph P. Tracy 1939-5-14 16284 Humboldt Buck Mountain 914 Comment
  HSC99067  Sanicula tuberosa C. Witte 2007-5-21 54 Humboldt Board Camp Mountain. Near intersection of Forest Service Road 4N38 with National Forest 1. 1394 Comment
  UC1197327  Sanicula tuberosa Joseph P. Tracy 1930-6-21 8780 Humboldt Northern Coast Ranges, Laribee Valley Laribee Valley; Northern Coast Ranges, Laribee Valley 792 Comment
  UC153999  Satureja douglasii J. P. Tracy 1905-6-25 2201 Humboldt immediate vicinity Eureka 0 Comment
  JEPS26213  Saxifraga oregana Joseph P. Tracy 1932-7-14 10566 Humboldt Trinity Summit, at Corral Prairie Trinity Summit; Klamath Mountains, , Corral Prairie 1524 Comment
  HSC93515  Schoenoplectus acutus var. occidentalis Gordon Leppig 1998-6-25 848 Humboldt Arcata Marsh and Wildlife Sanctuary, SW side of log pond 2 Comment
  HSC85847  Schoenoplectus americanus L. P. Janeway 1983-9-24 702 Humboldt S side of Big Lagoon at county camp ground, 10-30 ft. from water line 3 Comment
  RSA91475  Schoenoplectus maritimus F. W. Peirson 1923-7-11 4271 Humboldt Flats north of Eureka Comment
  RSA53822  Schoenoplectus tabernaemontani Henry M. Pollard s.n. Humboldt Near Orleans. Comment
  UC668012  Scirpus cernuus Joseph P. Tracy 1934-7-13 13386 Humboldt Trinidad 91 Comment
  CDA39124  Scirpus maritimus Gordon Leppig 1999-10-25 1268 Humboldt State Hwy 101, mile marker 61.40 Comment
  HSC59434  Scirpus microcarpus Kenneth Clark 1979-4-21 141 Humboldt Clam Beach, 3.5 mi. N of McKinleyville on Hwy. 101 Comment
  CDA39145  Scirpus microcarpus Gordon Leppig 1998-6-26 861 Humboldt Arcata; Alder Grove Pond, south side of pond. Comment
  JEPS95121  Scirpus pungens Vernon Oswald and Lowell Ahart 1997-9-4 8848 Humboldt Big Lagoon County Park, at sw edge of Big Lagoon Big Lagoon; North Coast Region, Big Lagoon County Park, Big Lagoon 3 Comment
  UC175808  Scoliopus bigelovii Joseph P. Tracy 1913-6-20 4223 Humboldt opposite Buck Mt. (Dinsmore's Ranch); Valley of Van Duzen R., Dinsmore's Ranch 762 Comment
  SBBG52998  Scrophularia californica J. D. Hobson -Jul-1966 Humboldt S end of sand spit forming Eureka Harbor, 10 mi S of Eureka; Loleta Comment
  HSC79542  Scrophularia californica Kenneth Clark 1980-5-10 630 Humboldt Shelter Cove, lower alluvial terrace of Dead Man's Gulch 9 Comment
  UC1222866  Scutellaria antirrhinoides Joseph P. Tracy 1950-7-31 19231 Humboldt near Clear Lake (area back of White Rock, Friday Ridge); Grouse Mountain, Friday Ridge 1524 Comment
  UC604643  Scutellaria antirrhinoides Joseph P. Tracy 1938-6-9 15875 Humboldt near Blocksburg (2 mi s of town) 304 Comment
  HSC100510  Scutellaria bolanderi Carl C. Marshall May 1887 422 Humboldt Near Alder Point. Comment
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Jul 22 2018
  UC25878  Scutellaria tuberosa C. C. Marshall 1888-1 Humboldt Comment
  HSC58203  Sedum laxum Walter Overton 1979-8-1 12309 Humboldt Near Packsaddle Ridge, close to the town of Hoopa 1402 Comment
  HSC76353  Sedum laxum subsp. heckneri Teresa Prendusi 1981-7-24 506 Humboldt Near Whiteys Peak 1634 Comment
  UC1198838  Sedum laxum subsp. heckneri Joseph P. Tracy 1947-7-9 17865 Humboldt Horse Mountain Horse Mountain (on barren ledge of rock) 1432 Comment
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Aug 17 2011
  HSC58165  Sedum obtusatum subsp. retusum G. L. Clifton, Griswold 1979-8-2 12231 Humboldt Near Oregon Creek, close to the town of Hoopa 1663 Comment
  HSC72663  Sedum radiatum M. A. Baker 1980-6-26 2469 Humboldt Near Sims Creek 610 Comment
  JEPS25682  Sedum spathulifolium P. C. Hutchison 1961-5-21 2005 A Humboldt hiway US 101, 1/2 mi s Holbrook Grove boundary (1/2 mi n of Redway, 3 1/4 mi n of Garberville, rocks e of hiway facing nw); s of Holbrook Grove boundary, n of Redway, n of Garberville 167 Comment
  UC1198829  Sedum spathulifolium Joseph P. Tracy 1913-6-26 4347 Humboldt opposite Buck Mountain (Valley of Van Duzen River, Dinsmore's Ranch); Northern Coast Ranges, Valley Van Duzen River, Buck Mountain 762 Comment
  CAS-BOT-BC59111  Sedum spathulifolium subsp. pruinosum Ira L. Wiggins 1932-6-18 5878 Humboldt Mouth of Little River. Comment
  CAS-BOT-BC59120  Sedum spathulifolium subsp. pruinosum Alice Eastwood 1907-4-22 38 Humboldt Port Trinidad Comment
  HSC92016  Sedum spathulifolium var. pruinosum E. Mackey 1987-9-7 Humboldt Patrick's Point State Park Comment
  HSC28237  Sedum spathulifolium var. pruinosum Clifton Raymond Chesbrough 1973-6-19 100 Humboldt 0.5 mi. N of College Cove along coast Comment
  HSC95768  Selaginella kraussiana Gordon Leppig 2000-4-12 1290 Humboldt Arcata: behind Humboldt State University, at base of stump near Fern Lake spillway 49 Comment
  CAS-BOT-BC69737  Selaginella wallacei Joseph P. Tracy 1932-3-20 9783 Humboldt Trinidad. 60 Comment
  SEINET10472835  Senecio Mary Susan Taylor 1982-10-24 Taylor 5185 Humboldt T5N R1W nw sec 15. Eureka quad. Samoa, under bridge, ca. 1 mi nw of Eureka. Sea level. Sandy soils. 0 Comment
  UC1199500  Senecio glomeratus Joseph P. Tracy 1936-8-23 15167 Humboldt near Carlotta 30 Comment
  HSC6121  Senecio integerrimus var. major D. E. Anderson 1965-5-22 3727 Humboldt Hunt Ranch, 3-4 mi. N of Bridgeville Comment
  HSC72692  Senecio integerrimus var. major Gail Newton 1980-6-24 562 Humboldt Near Ladder Rock 1570 Comment
  UC581706  Senecio integerrimus var. major Joseph P. Tracy 1933-7-11 12703 Humboldt Grouse Mountain North Coast Ranges 1524 Comment
  CAS-BOT-BC364016  Senecio integerrimus var. major Joseph P. Tracy 1928-5-6 8429 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  UC175387  Senecio sylvaticus J. P. Tracy 1907-6-20 2571 Humboldt immediate vicinity Eureka 0 Comment
  HSC36579  Senecio sylvaticus Thomas W. Nelson, James Nelson 1975-9-3 2197 Humboldt Above the junction of Maple Creek-Kneeland Rd. Comment
  CAS-BOT-BC364329  Senecio triangularis Henry M. Pollard 1944-9-8 s.n. Humboldt Orleans Mt. 1524 Comment
  HSC102100  Senecio triangularis M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 1003 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  RSA12546  Senecio triangularis C. B. Wolf 1934-7-2 s.n. Humboldt Small lake at Snow Camp (Mountains east of Korbel). 1372 Comment
  HSC29884  Senecio vulgaris Thomas W. Nelson 1971-11-11 600 Humboldt Foot of Murray Rd., McKinleyville. Comment
  UC55657  Sequoia sempervirens J. P. Tracy 1901-8-11 1277 Humboldt immediate vicinity of Eureka 0 Comment
  UCD19960  Sequoia sempervirens C. H. Lamoureux; R. Gankin 1956-3-17 1044 Humboldt Southern boundary of Jensen Grove, between Meyers and Miranda on Hwy 101. Comment
  HSC79421  Sherardia arvensis Kenneth Clark 1980-4-18 598 Humboldt Above Dead Man's Gulch 183 Comment
  SEINET6993447  Sherardia arvensis Wanda P. Vestal, A. G. Vestal 1937-6-22 s.n. Humboldt Kneeland prairie, near serpentine outcrops, about 4 miles southeast of Kneeland. Comment
  UC1222508  Sidalcea diploscypha Joseph P. Tracy 1950-6-23 18871 Humboldt 3 mi ne Alderpoint (Dobbyn Creek); , ne of Alderpoint 213 Comment
  POM61723  Sidalcea malachroides Jos. Burtt Davy, Walter C. Blasdale 1899-6-13 5482 Humboldt Camp Grant Comment
  RSA168965  Sidalcea malachroides Joseph P. Tracy 1950-7-12 19033 Humboldt Butter Valley Road, 2 miles east of Cameron Hill jct. near Kneeland. Comment
  SBBG4711  Sidalcea malachroides H. and M. Dearing 1939-5-24 3428 Humboldt Cape Mendocino 121 Comment
Read comments
Oct 29 2014
  UC668139  Sidalcea malachroides Joseph P. Tracy 1936-5-17 14812 Humboldt 6 mi se Arcata (Fickle Hill); se of Arcata, Fickle Hill 609 Comment
  UC162918  Sidalcea malviflora subsp. asprella Joseph P. Tracy 1911-7-6 3349 Humboldt mountain slopes along road between Three Creeks and mouth Willow Creek; Northern Coast Ranges, btw Three Creeks and Willow Creek 762 Comment
  HSC57355  Sidalcea malviflora subsp. nana Overton, Butler 1979-7-26 10047 Humboldt Near White Rock Spring, close to the town of Willow Creek 1554 Comment
  UC18900  Sidalcea malviflora subsp. patula C. C. Marshall 1888-1 Humboldt e branch of South Fork Eel River Comment
  CAS-BOT-BC205761  Sidalcea oregana David Imper 1985-8-1 s.n. Humboldt Six Rivers National Forest. Approximately 1/2 mile west of Ladder Rock alongside trail 1371 Comment
  POM160836  Sidalcea oregana subsp. eximia Joseph P. Tracy 1920-7-25 5344 Humboldt Dows Prairie 61 Comment
  UC162882  Silene bridgesii Harley P. Chandler June, 1901 1505 Humboldt Klamath River North Coast Ranges, Klamath River 426 Comment
  HSC91612  Sinapis arvensis E. Mackey 1986-12-18 Humboldt Patrick's Point State Park, along Patrick's Point Drive Comment
  UC1198792  Sisymbrium altissimum Joseph P. Tracy 1937-5-31 15319 Humboldt Trinity River Valley at Willow Creek Willow Creek; Trinity River Valley, Willow Creek 152 Comment
  JEPS109834  Sisyrinchium bellum Dean W. Taylor 2005-6-10 19344 Humboldt Bear River Ridge, along the Mattole Road 3 road miles North (uphill) from Capetown 335 Comment
  UC1197803  Smilacina racemosa Joseph P. Tracy 1927-6-12 8150 Humboldt Horse Mountain; below top of mt. 1280 Comment
  RSA246653  Solanum americanum Robert F. Thorne, Percy C. Everett 1965-8-5 35147 Humboldt Samoa Dunes. 3 Comment
  CAS-BOT-BC83504  Solanum lycopersicum Henry M. Pollard 1948-7-21 s.n. Humboldt Orleans Comment
  HSC98036  Solanum parishii Cara Witte 2007-7-19 548 Humboldt Ammon Ridge Rd., 2 mi. E of intersection with National Forest 1. 1453 Comment
  CAS-BOT-BC154214  Solanum umbelliferum E. P. Hawver 1915-6-1 s.n. Humboldt Carlotta Comment
  UC577350  Solanum umbelliferum Joseph P. Tracy 1937-7-24 15528 Humboldt 2 mi se of Devil's Hole (Trinity Summit); Trinity Summit 1584 Comment
  UC577351  Solanum umbelliferum Joseph P. Tracy 1937-5-30 15313 Humboldt near Bosworth's (Larrabee Creek); Northern Coast Ranges, Larrabee Creek 457 Comment
  CAS-BOT-BC365433  Solidago elongata Doris K. Kildale 1926-8-17 1211 Humboldt Trinity Summit 1828 Comment
  HSC56455  Solidago elongata Griswold, Butler 1979-7-12 7232 Humboldt Near Groves Prairie, close to the town of Willow Creek. 1256 Comment
  HSC6183  Solidago elongata William J. Ferlatte, B. D. Rogers 1966-8-15 3131 Humboldt North Bank Rd., 2 mi. N of Arcata Comment
  UC175202  Solidago elongata Joseph P. Tracy 1913-9-9 4397 Humboldt Patrick's Point Northern Coast Ranges, Patrick's Point 30 Comment
  UC1409170  Solidago spathulata Robert F. Thorne and P. Everett 1965-8-5 35164 Humboldt Samoa Dunes 3 Comment
  CAS-BOT-BC364971  Solidago velutina subsp. californica Joseph P. Tracy 1937-9-5 15682 Humboldt Trinity River Valley, at Willow Creek 152 Comment
  HSC6217  Sonchus asper J. W. Johnson 1962-6-12 1410 Humboldt Arcata; between the foredunes, at foredune 39, Samoa Comment
  HSC6218  Sonchus asper S. R. Johnson 1965-3-15 11 Humboldt 1 mi. N of Luffenholtz Beach Comment
  JEPS37532  Sonchus oleraceus Lincoln Constance 1934-6-3 797 Humboldt foot of bank along n side Redwood Highway at Dyerville (South Fork Eel River, Bull Creek Region); Bull Creek Region, South Fork Eel River Comment
  UC1198766  Sorbus californica Doris K. Kildale 1926-9-5 2635 Humboldt on trail between Red Peak and Signal Peak; Lasseck's Peaks 1676 Comment
  CAS-BOT-BC158898  Sorbus scopulina Doris K. Kildale 1925-8-16 1170 Humboldt Trinity Summit 1828 Comment
  HSC90637  Sparaxis tricolor Gail Newton 1982-5-2 2515 Humboldt Elk River Wildlife Area, Eureka Comment
  HSC21347  Sparganium emersum John Warner Hosking 1968-10-10 Humboldt Clam Beach. Comment
  RSA244949  Spartina densiflora D. E. Anderson 1963-9-15 2814 Humboldt Humbolt Bay Comment
  UCD92969  Spartina densiflora Keith B. Macdonald 1965-9-1 s.n. Humboldt Arcata, along Humboldt Bay. Comment
  CAS-BOT-BC389920  Spergula arvensis Doris K. Kildale 1925-12-6 1820 Humboldt Orick, near mouth of Redwood Creek Comment
  HSC4233  Spergula arvensis W. Lanphere 1937-4-20 Humboldt College Campus Comment
  HSC4239  Spergula arvensis Francis Winter 1960-2-28 Humboldt Samoa Peninsula 6 mi. W of Arcata, Ca Comment
  HSC95590  Spergularia canadensis var. occidentalis Andrea Pickart 2002-7-19 181 Humboldt Arcata Marsh at end of I St. 0 Comment
  POM188638  Spergularia macrotheca Marcus E. Jones 1931-7-16 28873 Humboldt Arcata. Comment
  CAS-BOT-BC390305  Spergularia macrotheca var. macrotheca A. A. Heller 1923-7-9 13780 Humboldt Flat between Eureka and Arcata Comment
  HSC56168  Spergularia rubra G. L. Clifton, Griswold 1979-8-1 12059 Humboldt Near N Trinity Mtn., close to the town of Hoopa. 1798 Comment
  HSC98776  Spergularia rubra Cara Witte 2007-8-9 627 Humboldt Grouse Mountain. Forest Service Road 5N04. Near spring. 1583 Comment
  CAS-BOT-BC149613  Spiraea douglasii Malcom A. Nobs; S. Galen Smith 1949-8-9 1226 Humboldt 1 mile north of Arcata at junction of Highways 101 and 299, Mad River Valley Comment
  HSC19746  Spiraea splendens var. splendens R. J. Vernimen 1963-3-25 14 Humboldt Along railroad tracks at Clam Beach lagoons Comment
  HSC41270  Spiraea splendens var. splendens Brad Klipfel 1974-6-25 413 Humboldt Horse Mtn. Comment
  JEPS79990  Spiranthes porrifolia Joseph P. Tracy 1937-8-15 15667 Humboldt 15 mi e Orick (Bald Hills); Bald Hills 914 Comment
  HSC90473  Spiranthes romanzoffiana Jean Hanson 1980-8-28 124 Humboldt Indian (Gunther) Island, Humboldt Bay, Eureka. W end of island between dikes. Comment
  CHSC803  Stachys ajugoides var. rigida 1941-5-30 Humboldt Comment
  JEPS63079  Stachys ajugoides var. rigida Lincoln Constance 1934-5-26 663 Humboldt s end Dyerville Bridge; South Fork Eel River, Bull Creek Region 45 Comment
  UC668214  Stachys ajugoides var. rigida Joseph P. Tracy 1938-6-17 15969 Humboldt near Panther Gap (on road between Bull Creek to Mattole) 822 Comment
  CDA41012  Stachys ajugoides var. rigida T. C. Fuller 1958-6-17 1716 Humboldt Wildcat Ridge near Bunker Hill. 0 Comment
  UCLA70845  Stachys ajugoides var. rigida C. Epling Aug 1933 Humboldt on Weaverville-Arcata Road Willow Creek Comment
  UCLA71151  Stachys ajugoides var. rigida Huron H. Smith 1911-6-5 3782 Humboldt Camp 20 Vances Comment
  HSC12371  Stachys chamissonis Steve Dorei 1970-10-14 99 Humboldt Big Lagoon Comment
  HSC14419  Stachys mexicana William J. Ferlatte 1963-5-8 40 Humboldt Near B and 17th Sts., Arcata. Comment
  HSC96278  Stachys rigida var. rigida J. Breton, A. Livingston 2005-6-8 4 Humboldt 1.4 mi. S of Hwy. 299 on Titlow Hill Rd. 914 Comment
  CAS-BOT-BC175343  Stellaria borealis subsp. sitchana W. R. Dudley 1899-6-1 s.n. Humboldt Eureka Peninsula Comment
  CAS-BOT-BC375783  Stephanomeria virgata Carl D. Duncan 1920-9-22 s.n. Humboldt Hoopa Valley Comment
  HSC32547  Stephanomeria virgata Thomas W. Nelson 1973-9-3 1122 Humboldt McKeown Ranch N of Dinsmore Comment
  CAS-BOT-BC375782  Stephanomeria virgata Milo S. Baker 1927-8-14 2434 b Humboldt Near summit of ridge West of Bull Creek Comment
  HSC32339  Stipa lemmonii D. E. Anderson, S. Dowty, Thomas W. Nelson 1972-6-14 5642 Humboldt Senteney Rock, a large barren Franciscan Rock along Swayback Ridge Comment
  HSC97968  Stipa lemmonii var. lemmonii Cara Witte, Michael Scott 2007-6-22 348 Humboldt Board Camp Mountain, jeep trail between Tri Board Camp and Fork Camp 1565 Comment
  HSC70374  Stipa occidentalis var. californica M. A. Baker 1980-6-7 1781 Humboldt Near Brush Mtn. 1128 Comment
  HSC73047  Stipa occidentalis var. californica M. A. Baker 1980-7-15 2943 Humboldt Near Whiting Ridge. 1341 Comment
  HSC57118  Streptanthus tortuosus Walter Overton, Marvin Butler 1979-7-25 9863 Humboldt Near Sims Mtn., close to the town of Willow Creek 1295 Comment
  UC198632  Swertia radiata Joseph P. Tracy 1917-9-2 4851 Humboldt Grouse Mt. Northern Coast Ranges 1524 Comment
  UC179968  Symphoricarpos albus var. laevigatus Joseph P. Tracy 1914-6-14 4499 Humboldt near Hydesville; Northern Coast Region 60 Comment
  HSC99468  Symphoricarpos mollis K. A. Wayman, Robin Bencie, M. Mesler, Julie Gregory 2010-7-14 122 Humboldt Near North Trinity Mtn, 11. 5 mi east of Hoopa along Big Hill Rd (8N01), at Six Rivers National Forest boundary. 1433 Comment
  UC602502  Symphoricarpos mollis Joseph P. Tracy 1936-6-28 15013 Humboldt near Murphy Meadows (Bald Mt); Bald Mt. 975 Comment
  CAS-BOT-BC99161  Symphyotrichum chilense E. K. Balls 1950-7-17 14927 Humboldt Redwood Hwy, 4 mi. north of Loleta 7 Comment
  UC29837  Symphyotrichum chilense C. C. Marshall 1886-1-1 Humboldt Comment
  UC1198057  Synthyris reniformis Joseph P. Tracy 1930-6-15 Humboldt Larrabee Creek near Bosworth's; Northern Coast Ranges 457 Comment
  UC249515  Synthyris reniformis Joseph P. Tracy 1922-4-30 6039 Humboldt along road between Three Creeks and mouth of Willow Creek; Northern Coast Ranges, Brannan Mountain 914 Comment
  CAS-BOT-BC376721  Tanacetum bipinnatum Paul F. Covel 1937-7-13 1056 Humboldt Bar near mouth Eel River Comment
  UC1222838  Taraxia ovata Joseph P. Tracy 1951-5-5 19392 Humboldt flat by old Strong's District School House (5 mi e of Carlotta) 60 Comment
  HSC21572  Tauschia kelloggii Francis Winter 1960-4-24 Humboldt Hog Ranch Ridge, 8 mi. NW of Hoopa Indian Reservation 610 Comment
  SDSU2029  Taxus brevifolia D. F. Howe 1965-8-10 4128 Humboldt 9.8 miles west of willowcreek on #299. 884 Comment
  SJSU685  Taxus brevifolia A. W. Jacobs 1941-6-15 Humboldt border of road (Hwy 299) between Blue Lake & Redwood Creek Comment
  CAS-BOT-BC447402  Tellima grandiflora Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  HSC56216  Tellima grandiflora G. L. Clifton, Griswold 1979-8-2 12229 Humboldt Near Oregon Creek, close to the town of Hoopa. 1661 Comment
  UC1198892  Tellima grandiflora Joseph P. Tracy Jul 16 1930-Jul 19 1930 9087 Humboldt near McKay Camp (South Fork Mountain); Northern Coast Ranges, South Fork Mountain 1676 Comment
  CAS-BOT-BC447403  Tellima grandiflora Harley P. Chandler 1901-5-1 1232 Humboldt Humboldt Bay; North Coast Ranges 121 Comment
  HSC45015  Tellima grandiflora R. Sutherland 1978-4-25 5 .25478 Humboldt Mouth of Buck Creek near ocean 18 Comment
  RSA167304  Tellima grandiflora Joseph P. Tracy 1950-6-8 18722 Humboldt Near Mountain Glen Ranch, summit of ridge, 7 miles south of Ferndale. Bear River Ridge. 610 Comment
  UC1196943  Tetrapteron graciliflorum Joseph P. Tracy 1902-6-3 1673 Humboldt near Fruitland; Northern Coast Ranges 609 Comment
  HSC100623  Thalictrum Carl C. Marshall May 1886 224 Humboldt Humboldt Bay. Comment
  HSC18237  Thalictrum polycarpum S. S. Stutz 1963-5-18 61 Humboldt 7 mi. SE of Arcata on Fickle Hill Rd. Comment
  HSC92244  Thermopsis macrophylla var. macrophylla Clare Golec 1995-7-6 Humboldt 701 Comment
  UC1129924  Thermopsis macrophylla var. macrophylla A. E. Wieslander 1931-5-19 7 Humboldt near Orleans; Klamath National Forest, Hoopa Quadrangle Comment
  UC1586873  Thlaspi montanum var. montanum Juha Pykala and D. H. Norris 1987-5-19 710 Humboldt Horse Mountain Road at intersection with ski-lift; Horse Mountain Road 1400 Comment
  UC673195  Thlaspi montanum var. montanum Lincoln Constance and Reed C. Rollins 1942-5-11 2877 Humboldt 5 mi s Hoopa; North Coast Ranges, Hoopa Valley 121 Comment
  CAS-BOT-BC81319  Thuja plicata Milo S. Baker 1927-8-21 2471 a Humboldt Cold Bog, in vicinity of Bald Mt. 914 Comment
  NY17196  Thuja plicata A. Kellogg 1868-1 933 Humboldt This specimen represents an endangered or threatened species. The specific locality has been removed from this record to protect this species from over-collection. These data may be supplied to researchers on request. Comment
  SBBG34243  Thuja plicata M. Van Rensselaer 1938-3-31 Humboldt Humboldt County [no specific locality] Comment
  SD56861  Thuja plicata Darley F. Howe 1963-8-7 Humboldt 30 miles west of west entrance to 6 Rivers north fork on Highway #299 185 Comment
  UC1190156  Thuja plicata Ira L. Wiggins 1955-7-31 13594 Humboldt 9 mi e of Arcata (hillside, along Highway 299); Highway 299 316 Comment
  UCD134111  Thuja plicata Jo Ann Olson; Gary R. Robbins 1969-4-27 36 Humboldt On Mattole Road, ca. 1 mile south of Ferndale. 152 Comment
  CAS-BOT-BC88328  Thysanocarpus curvipes Lincoln Constance; Reed C. Rollins 1942-5-12 2884 Humboldt Klamath-Siskiyou Region. Mouth of Bluff Creek, 6 miles northeast of Weitchpec. 152 Comment
  UC1198816  Thysanocarpus curvipes Joseph P. Tracy 1911-7-4 3281 Humboldt along Willow Creek (tributary of Trinity River, near its mouth); Northern Coast Ranges, , trib of Trinity River 152 Comment
  CAS-BOT-BC436907  Tiarella trifoliata var. unifoliata Doris Kildale 1931-5-10 10676 Humboldt Snow Camp Comment
  HSC64218  Tiarella trifoliata var. unifoliata J. O. Sawyer, M. A. Ericksen 1979-6-23 3383 Humboldt Slopes below Mill Creek Lakes 1585 Comment
  HSC97995  Tiarella trifoliata var. unifoliata Cara Witte 2007-7-11 492 Humboldt Waterhole off Forest Service Road 5N10. Approximately 2 miles east of intersection with National Forest 1. 1346 Comment
  UCD102963  Tiarella trifoliata var. unifoliata K. Esau 1934-5-8 s.n. Humboldt Redwood Highway, near Scotia. Comment
  JEPS49712  Tiarella trifoliata var. unifoliata W. L. Jepson 1921-9-10 9455 Humboldt Bull Creek Flat; South Fork Eel, Bull Creek Flat 60 Comment
  SEINET5733249 Image available Tiarella trifoliata var. unifoliata Lowell E. Urbatsch, Patricia B. Cox; Alan W. Lievens 1988-1 6107 Humboldt From California 299 at Hawkins Bar (in Trinity County), turn onto the road to Denny and travel 1.7 miles down this road to a fork in the road. Take the lefthand road ( leading to Waterman Ridge, Zeigler Point) and travel 6.7 miles down this road to another fork in the road. Take the right fork (away from the road leading to Waterman Ridge and Willow Creek). On this road (7NO4), travel 1.5 miles to another fork; continue on 7NO4(the left fork) for 7.4 miles. At this point, take 7NO4, the road to Groves Prarie. The collection site is a short distance up this road.; Groves Prairie Comment
  HSC56107  Tolmiea diplomenziesii G. L. Clifton 1979-7-31 11858 Humboldt Near Tish Tang A Tang Creek, close to the town of Hoopa. 1356 Comment
  HSC64854  Tolmiea diplomenziesii J. P. Smith 1973-5-26 6854 Humboldt Scotia Bluffs along the Eel River near Rio Dell Comment
  UCR45380  Tonella tenella Barry Silver 1986-4-23 518 Humboldt North Coast Range, Bair Road, 9.5-10 mi NW of the junction with Hwy 299; Pine Ridge Summit Area 997 Comment
  SDSU2311  Torilis arvensis D. F. Howe 1961-7-31 3100 Humboldt 6 miles south of Garberville on #101. 91 Comment
  JEPS63934  Toxicodendron diversilobum W. L. Jepson 1902-7-10 2003 a Humboldt S. Fork Trinity R., Martin's Ranch Comment
  POM117573  Toxicodendron diversilobum Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia Comment
  CAS-BOT-BC323057  Tracyina rostrata Joseph P. Tracy 1930-6-15 8762 Humboldt Dobbyn Creek 152 Comment
  HSC58100  Triantha occidentalis subsp. occidentalis G. L. Clifton, Griswold 1979-8-1 12030 Humboldt Near N Trinity Mtn., close to the town of Hoopa 1799 Comment
  JEPS63123  Trichostema lanceolatum W. L. Jepson 1921-9-11 9466 Humboldt DeVoy Flat, South Fork Eel River Comment
  HSC71468  Trifolium albopurpureum J. P. Smith, J. O. Sawyer 1973-5-12 6676 Humboldt 3.3 mi. from Redwood Creek on Hoopa Rd. Comment
  UC1223365  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1950-6-15 18807 Humboldt 7 mi n Harris (Jenk's Ranch) Comment
  UC1223383  Trifolium albopurpureum var. dichotomum Joseph P. Tracy 1933-5-20 12245 Humboldt in valley along river Petrolia; Northern Coast Ranges, Mattole Valley Comment
  HSC100527  Trifolium barbigerum Carl C. Marshall Jun 1885 65 Humboldt No data. Comment
  UC1197187  Trifolium bifidum var. decipiens Joseph P. Tracy 1927-5-8 7964 Humboldt facing South Fork of Eel River (Phillipsville); Northern Coast Ranges 121 Comment
  UC160939  Trifolium bifidum var. decipiens Joseph P. Tracy 1908-6 2780 Humboldt nw slope Buck Mtn; Northern Coast Ranges 91 Comment
  UC1223479  Trifolium depauperatum var. depauperatum Joseph P. Tracy 1948-5-31 17985 Humboldt 1/2 mi ne Garberville (bench) Comment
  UCD109725  Trifolium dichotomum R. Tofsrud 1948-1 s.n. Humboldt Humboldt County. Comment
  UC1197052  Trifolium dubium Joseph P. Tracy 1923-6-17 6267 Humboldt Dows Prairie Northern Coast Ranges 60 Comment
  UC1223468  Trifolium dubium Joseph P. Tracy 1948-5-31 18024 Humboldt Blocksburg Comment
  HSC77921  Trifolium dubium L. P. Janeway, Paul Wilson 1984-5-7 769 Humboldt On the N Spit of Humboldt Bay, on BLM lands near the Coast Guard Station 3 Comment
  HSC97569  Trifolium eriocephalum subsp. eriocephalum Cara Witte 2007-6-7 225 Humboldt Along National Forest 1 on Kinsey Ridge. 1 mile south of intersection with 4N06. 1263 Comment
  RSA135394  Trifolium eriocephalum subsp. eriocephalum Volney Rattan 1878-1 s.n. Humboldt Kneeland Prairie. Comment
  HSC45123  Trifolium fucatum R. Sutherland 5 .19578 Humboldt 128 Comment
  RSA21656  Trifolium fucatum var. fucatum Carl B. Wolf 1937-6-14 8811 Humboldt Kneeland Prairie; North Coast Range. 823 Comment
  SEINET12147991  Trifolium fucatum var. virescens J. P. Tracy 1938-1 15950 Humboldt S side of Cape Ridge. Cape Mendocino, s of point of the cape 30 Comment
  UC162777  Trifolium gracilentum J. P. Tracy 1900-6-5 844 Humboldt immediate vicinity Eureka (Bucksport) 0 Comment
  UC495642  Trifolium gracilentum Joseph P. Tracy 1932-5-22 10124 Humboldt betw Miranda and Redway (South Fork of Eel River); North Coast Ranges 91 Comment
  HSC69635  Trifolium incarnatum R. Kalal 1980-5-18 23 Humboldt Along Hwy. 101 11 Comment
  HSC77334  Trifolium incarnatum C. J. Thomas 1983-5-9 28 Humboldt Adjacent to Hwy. overpass walkway near HSU 23 Comment
  HSC102067  Trifolium longipes subsp. hansenii M. R. Mesler, Robin Bencie, K. A. Wayman 2011-8-2 969 Humboldt Crogan Rocks, ~.25 mi. east of Crogan Hole 1759 Comment
  HSC44836  Trifolium longipes subsp. oreganum Thomas W. Nelson, Jane P. Nelson 1977-6-19 3520 Humboldt SW of Alder Springs along Rd. 2S08 1463 Comment
  UC1223359  Trifolium macraei Joseph P. Tracy 1950-6-8 18729 Humboldt Bear River Ridge 609 Comment
  JEPS65951  Trifolium microcephalum Joseph P. Tracy 1932-5-1 9893 Humboldt vicinity Garberville; Northern Coast Ranges 121 Comment
  RSA322029  Trifolium microdon John M. Gillett, A. G. Moulds, George W. Gillett 12607 Humboldt Trinidad. Comment
  HSC78971  Trifolium microdon L. P. Janeway 1984-5-16 786 Humboldt N Spit of Humboldt Bay, on the W side of Samoa Road 1/4 mi. NW of the boat ramp 5 Comment
  UC1197506  Trifolium microdon Joseph P. Tracy 1917-5-30 4800 Humboldt Little River Beach Northern Coast Region 6 Comment
  HSC15222  Trifolium obtusiflorum William J. Ferlatte, B. D. Rodgers 1966-6-7 2084 Humboldt 1 mi. E of Forest Glen 732 Comment
  UC1103444  Trifolium oliganthum Joseph P. Tracy and Ernest B. Babcock 1912-5-11 3609 Humboldt near Hydesville; Northern Coast Region Comment
  HSC48378  Trifolium subterraneum Mark Flippo 1978-4-18 39 Humboldt McKinleyville, Bella Vista Hill Comment
  UCSC000416  Trifolium variegatum H. S. Yates 1936-6-18 5733 Humboldt 2 miles N. of Big Lagoon - Rocky Pt. 30 Comment
  UC1223543  Trifolium variegatum var. pauciflorum Joseph P. Tracy 1933-5-20 12241 Humboldt Petrolia Northern Coast Ranges, Mattole Valley Comment
  UC1197533  Trifolium willdenovii J. P. Tracy 1900-6-4 868 Humboldt Ocean Beach Northern Coast Region, Humboldt Bay Comment
  RSA168852  Trifolium wormskioldii Joseph P. Tracy 1950-6-8 18714 Humboldt Near the Sand Cut. Wild Cat Road, 2 miles south of Ferndale. Comment
  RSA168905  Trifolium wormskioldii Joseph P. Tracy 1938-7-24 16087 Humboldt Corner of Pacific and A Streets. Eureka. Comment
  UC201372  Trifolium wormskioldii Joseph P. Tracy 1918-7-3 4991 Humboldt Shelter Cove Northern Coast Ranges 15 Comment
  SEINET10577442  Trifolium wormskioldii var. wormskioldii Joseph P. Tracy 1911-6-25 Tracy 3246 Humboldt At Eureka 0 Comment
  HSC37956  Triglochin maritima Peter Sorensen 1976-6-2 Humboldt Humboldt Bay, Woodley Island Comment
  HSC90807  Triglochin maritima Gail Newton 1982-5-2 2510 Humboldt Elk River Wildlife Area, Eureka Comment
  UC672871  Triglochin maritima Joseph P. Tracy 1934-7-20 13466 Humboldt Big Lagoon 3 Comment
  UCD138179  Triglochin maritima Malcolm A. Nobs; S. Galen Smith 1949-8-3 1169 Humboldt Eel River Valley, 1 mile south of Fields Landing. Comment
  HSC15714  Trillium albidum Francis Winter 1960-5-7 Humboldt Hog Ranch Ridge, 8 mi. W of Hoopa Indian Reservation 915 Comment
  HSC96777  Trillium albidum M. Mesler 2006-6-3 608 Humboldt 16 mi. S of Hwy. 299, NF 1 1250 Comment
  UC1364374  Trillium albidum J. D. Freeman with R. F. Freeman 1967-5-7 581 Humboldt just n. of Carlotta (just w. of CA Hwy. 36) Comment
  CHSC2320  Trillium ovatum 1933-4-15 Humboldt Comment
  HSC102558  Trillium ovatum M. R. Mesler, Robin Bencie, Ian Zacher 2013-6-29 1546 Humboldt Bret Hole. 1.1 km SW of Trinity Summit 1579 Comment
  HSC45264  Trillium ovatum M. Alcasas 1978-4-7 1 Humboldt Freshwater Rd. 0.5 mi. N of Kneeland Post Office 732 Comment
  POM290755  Trillium ovatum Lyman Benson 1928-7-8 391 Humboldt Weott Ranger Station; Mt. Range: Seaward N Coast; Watershed: S Fork Eel River. 61 Comment
  UCD139911  Trillium ovatum Anstruther Davidson 1930-1 s.n. Humboldt Kelseyville. Comment
  CAS-BOT-BC521315  Trillium rivale Doris K. Kildale; L. B. Kildale 1930-5-24 9551 Humboldt Hoopa Valley 152 Comment
  HSC20852  Triphysaria eriantha subsp. eriantha S. J. Hawks 1965-5-14 56 Humboldt 1 mi. W of Mckinleyville, past the end of Murray Rd. Comment
  UC1222457  Triphysaria pusilla Joseph P. Tracy 1935-5-25 13905 Humboldt Dobbyn Creek 152 Comment
  HSC70581  Triphysaria pusilla Sue Sweet 1981-4-30 549 Humboldt Lanphere-Christensen Dunes Preserve, along trail N of weather station Comment
  HSC78970  Triphysaria pusilla L. P. Janeway 1984-5-16 787 Humboldt N Spit of Humboldt Bay, W side of Samoa Rd., 0.25 mi. N of the boat ramp 3 Comment
  UC179947  Triphysaria versicolor subsp. faucibarbata Joseph P. Tracy 1914-5-14 4472 Humboldt Fort Seward; Northern Coast Ranges, Fort Seward 121 Comment
  JEPS11165  Triphysaria versicolor subsp. versicolor J. P. Tracy 1944-5-14 17467 Humboldt Eureka Comment
  UC1198043  Triphysaria versicolor subsp. versicolor Joseph P. Tracy 1927-4-24 7928 Humboldt Eureka 6 Comment
  CAS-BOT-BC199629  Trisetum canescens David D. Keck 1948-7-2 6006 Humboldt E. side of Rock Ridge, E. of Berry's Summit, 4.1 miles W. of Willow Creek. Near Boundary of Six Rivers Nat'l Forest 457 Comment
  HSC13417  Trisetum cernuum D. J. Wilder 1965-5-15 35 Humboldt 2 mi. E of Freshwater on Road to Kneeland Comment
  UCSB13001  Triteleia hyacinthina Muller, Katherine 1954-6-21 Humboldt Olson Creek, 2 mi E. NE. of Mad River Comment
  HSC3038  Triteleia hyacinthina D. E. Anderson 1962-7-14 2259 Humboldt Along Barry Ridge Rd. Comment
  UC1197718  Triteleia laxa Joseph P. Tracy 1912-6-30 3710 Humboldt Eureka Northern Coast Ranges 0 Comment
  POM169620  Triteleia peduncularis Joseph P. Tracy 1903-6-12 1920 Humboldt Immediate vicinity of Eureka. 0 Comment
  CAS-BOT-BC85851  Tsuga heterophylla P. C. Everett; E. K. Balls 1959-10-25 23963 Humboldt 22 mi. W. from Willow Creek along U.S. Hwy. 299 to Arcata 579 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
  CAS-BOT-BC91108  Umbellularia californica Doris K. Kildale 1927-8-16 2515 Humboldt Upper Willow Creek Flat - Trinity River Valley. 152 Comment
  SEINET12102554  Umbellularia californica E. H. Graham 1931-1 6960 Humboldt Along highway near Garberville Comment
  UC582438  Uropappus lindleyi Joseph P. Tracy 1927-5-14 8008 Humboldt near South Fork; Trinity River Valley 182 Comment
  UC1239525  Uropappus lindleyi Joseph P. Tracy 1921-4-24 5462 Humboldt slopes and open groves South Fork Eel River (Phillipsville); Northern Coast Ranges, , Phillipsville 121 Comment
  UC1197785  Vaccinium cespitosum Joseph P. Tracy 1932-7-16 10618 Humboldt Corral Prairie Trinity Summit 1584 Comment
  UC1222632  Vaccinium cespitosum Joseph P. Tracy 1951-6-26 19554 Humboldt Snow Camp 1402 Comment
  CAS-BOT-BC199310  Vaccinium ovatum Carl B. Wolf 1927-8-27 1159 Humboldt On the Klamath River 2 mi. below the Salmon River Comment
  CAS-BOT-BC199324  Vaccinium ovatum L. R. Abrams 1918-6-16 7188 Humboldt Willow Creek Comment
  CHSC19510  Vaccinium ovatum P. F. Yull 1966-3-24 112 Humboldt South of Manila School. 120 yards from ocean. Comment
  RSA46803  Vaccinium ovatum Doris K. Kildale 1927-5-15 3189 Humboldt Big Lagoon Flat. Comment
  UC1197779  Vaccinium ovatum Joseph P. Tracy 1922-5-21 6052 Humboldt Fieldbrook Northern Coast Ranges 60 Comment
  UC412666  Vaccinium ovatum Mrs. M. H. Manning 1900-1 Humboldt near Hupa Comment
  UCD166889  Vaccinium ovatum Colleen Rossier 2016-9-17 7 Humboldt In vicinity of Natuket Creek, plot Natuket #1. 702 Comment
  HSC98120  Vaccinium parvifolium Cara Witte 2007-5-24 113 Humboldt Horse Mountain Botanical Area. Along Forest Service Rd. 6N38. Near Horse Mountain Mine. 1578 Comment
  SEINET3107075  Vaccinium parvifolium Steve Selva, Roger Jensen 1974-8-28 97 Humboldt Redwood forest behind Humboldt State University, Arcata. Comment
  UC1197763  Vaccinium parvifolium Joseph P. Tracy 1938-6-13 15900 Humboldt Horse Mountain 1432 Comment
  CAS-BOT-BC199493  Vaccinium uliginosum Joseph P. Tracy 1932-7-14 10564 Humboldt Trinity Summit, Corral Prairie 1584 Comment
  HSC97947  Valeriana californica Cara Witte 2007-6-26 359 Humboldt Horse Mountain Botanical Area. Forest Service Road 6N38. 1/4 mile east from intersection with National Forest 1. 1457 Comment
  HSC57994  Vancouveria hexandra G. L. Clifton, Griswold 1979-7-31 11757 Humboldt Near Trinity Summit Guard Station, close to the town of Hoopa 1805 Comment
  HSC91601  Vancouveria hexandra E. Mackey 1986-6-16 Humboldt Patrick's Point State Park Comment
  SBBG2296  Vancouveria hexandra H. and M. Dearing 1933-5-16 599 Humboldt Weott Comment
  HSC3386  Vancouveria hexandra D. B. Bader 1963-5-15 50 Humboldt .25 mi. up Jolly Giant Creek from HSU men's dormitory Comment
  UC1541238  Vancouveria hexandra Harold E. Parks May 1933 4288 Humboldt near Trinidad; near Trinidad Comment
  HSC67545  Vancouveria planipetala J. P. Smith, Steve Selva 1970-6-14 3835 Humboldt Along Hwy. 96 at Whitmore Creek. 152 Comment
  HSC70723  Vancouveria planipetala Gail Newton 1980-7-14 1517 Humboldt Near Deadman Ridge 1097 Comment
  HSC74645  Vancouveria planipetala M. A. Baker 1980-5-17 1220 Humboldt Near Le Perron Peak 792 Comment
  HSC76284  Vancouveria planipetala Teresa Prendusi 1981-7-9 189 Humboldt Near Cedar Camp. 1268 Comment
  HSC38742  Vancouveria planipetala J. D. Ackerman 1975-6-18 468 Humboldt Big Hill Rd., 7.9 mi. E of Hoopa and Hwy. 96 Comment
  HSC40825  Verbena lasiostachys var. lasiostachys Thomas W. Nelson, James Nelson 1976-7-26 3044 Humboldt S of Mount Lassic (Signal Peak) 1707 Comment
  JEPS16845  Veronica americana W. L. Jepson 1932-7-30 16452 Humboldt Bull Creek 121 Comment
  JEPS26268  Veronica arvensis Joseph P. Tracy 1906-6-10 2482 Humboldt Kneeland Prairie; Northern Coast Ranges, Kneeland Prairie 762 Comment
  UC176114  Veronica persica Joseph P. Tracy 1912-7-3 3718 Humboldt Eel River Valley, at Metropolitan Eel River Valley; Northern Coast Ranges, Eel River Valley 30 Comment
  HSC55299  Veronica serpyllifolia subsp. humifusa Terry Griswold, Marvin Butler 1979-7-10 6379 Humboldt Near Board Camp Mtn., close to the town of Willow Creek 1372 Comment
  UC147902  Veronica serpyllifolia subsp. humifusa J. P. Tracy 1909-5-2 2958 Humboldt immediate vicinity of Eureka 0 Comment
  POM283766  Veronica serpyllifolia var. humifusa Lyman D. Benson 1929-7-14 1799 Humboldt Weott Ranger Station, South Fork Eel River. Comment
  HSC70657  Vicia americana var. americana Gail Newton 1980-7-14 1534 Humboldt Near Deadman Ridge 1097 Comment
  HSC73151  Vicia americana var. americana M. A. Baker 1980-5-18 1304 Humboldt Near Black Mtn. 1006 Comment
  UC1197480  Vicia americana var. americana Joseph P. Tracy 1935-7-27 14308 Humboldt McKay Prairie; Trinity Summit 1584 Comment
  UC1222597  Vicia americana var. americana Joseph P. Tracy 1950-6-8 18733 Humboldt 7 mi s Ferndale (near Mountain Glen Ranch, Summit of Bear River Ridge); Bear River Ridge 609 Comment
  RSA293198  Vicia angustifolia J. P. Smith 1973-5-26 6831 Humboldt Scotia Bluffs along the Eel River near Rio Dell. Comment
  RSA91235  Vicia angustifolia F. W. Peirson 1926-7-13 7059 Humboldt Mad River, near Blue Lake Comment
  HSC33770  Vicia hirsuta Paul Dryden 1975-5-24 202 Humboldt Samoa Dunes, across from the boat landing. Comment
  HSC100544  Vicia sativa Carl C. Marshall Sep 1887 442 Humboldt Salmon Creek. Comment
  POM161054  Vicia sativa Joseph P. Tracy 1926-5-2 7433 Humboldt Trinity River Valley, near the south fork. Comment
  HSC77964  Vicia sativa subsp. nigra L. P. Janeway, Paul Wilson 1984-5-25 829 Humboldt N Spit of Humboldt Bay, BLM lands near the Coast Guard Station 5 Comment
  HSC90813  Vicia sativa subsp. nigra Gail Newton 1982-5-5 2531 Humboldt Elk River Wildlife Area, Eureka Comment
  UCR104583  Vicia sativa subsp. nigra A. R. Alexander 1998-4-9 10 Humboldt US Highway 101 and Giuntoli Lane, near shopping center, Arcata 152 Comment
  HSC23675  Vicia sativa subsp. nigra Tim Baroni 1971-6-25 49 Humboldt Comment
  UC198596  Vicia tetrasperma Joseph P. Tracy 1916-5-31 4688 Humboldt Stitc Creek Stitz Creek (along Eel River from South Fork to Scotia); Northern Coast Ranges, Eel River 60 Comment
  CAS-BOT-BC263947  Viola adunca L. B. Kildale 1930-5-11 9543 Humboldt Bald Hills near [Tomlinson's?] 792 Comment
  HSC21758  Viola adunca F. B. Plett 1963-3-9 5 Humboldt 1.5 mi. N of Trinidad along old Hwy. 101 Comment
  UC1198443  Viola adunca Joseph P. Tracy 1927-4-24 7943 Humboldt Table Bluff; Northern Coast Ranges 91 Comment
  UC1761516  Viola adunca Milo S. Baker 1923-7-30 158 Humboldt Iaqua, 1/2 mi from Fredricksons house (near head of Yager Creek) 670 Comment
  JEPS50215  Viola bakeri Joseph P. Tracy 1932-7-15 10596 Humboldt ridges e of Corral Prairie; Klamath Mountains, Trinity Summit 1828 Comment
  UC1762513  Viola californica Milo S. Baker 11506 Humboldt South Fork Mountain, Lemonade Spring 1371 Comment
  HSC38515  Viola cuneata D. E. Anderson, J. P. Smith 1971-6-18 - 1085 Humboldt Horse Mtn. Comment
  UCSB18722  Viola cuneata Jensen, Karen 1965-4-15 Humboldt 0.2 km. W of U.S. Highway 101, by Miranda turnoff 91 Comment
  HSC44352  Viola glabella Brad Klipfel 1974-5-8 321 Humboldt Horse Mtn. Comment
  POM118644  Viola glabella Marcus E. Jones 1924-4-26 s.n. Humboldt Scotia. Comment
  HSC48637  Viola glabella Mark Flippo 1978-5-21 81 Humboldt USFS Rd. 8N20 Comment
  HSC71155  Viola glabella Thomas W. Nelson 1977-6-15 3428 Humboldt Along FS 6N01, just N of Clear Lake 1372 Comment
  UC1198457  Viola glabella Joseph P. Tracy 1912-3-31 3562 Humboldt below Fieldbrook (on Lindsay Creek); Northern Coast Ranges, Lindsay Creek 30 Comment
  UC35267  Viola glabella W. C. Blasdale 1896-6-5 Humboldt Fitzgerald's Comment
  HSC44426  Viola hallii Brad Klipfel 1975-5-30 646 Humboldt Horse Mtn. Comment
  HSC21822  Viola ocellata D. E. Anderson 1965-5-1 3557 Humboldt Along Hwy. 96, 1.9 mi. N of Willow Creek Comment
  BLMAR574  Viola praemorsa Jennifer Wheeler 2010-5-12 574 Humboldt Lacks Creek, Faulkner prairie 731 Comment
  SEINET202728 Image available Viola praemorsa J. P. Tracy 1951-5-20 19403 Humboldt Near Kneeland School House Kneeland Prairie 762 Comment
  UC66207  Viola praemorsa subsp. praemorsa Harley P. Chandler may, 1901 1085 Humboldt Harris; Northern Coast Ranges, Harris 609 Comment
  HSC84493  Viola praemorsa subsp. praemorsa R. Earing, C. Cavanaugh, C. Collins 1987-4-24 95 Humboldt 24 mi. E of Blue Lake on Titlow Hill Rd., ca. 1/2 mi. from Hwy. 299 854 Comment
  SEINET10404788  Viola sarmentosa Unknown 1967-6-16 67 -12 Humboldt of Orick; James Irvine redwood grove, U.S. 101 Comment
  RSA12554  Viola sempervirens Carl B. Wolf 1934-7-2 5885 Humboldt Snow Camp. Mountains east of Korbel. 1372 Comment
  SEINET11154271  Viola sempervirens J. P. Tracy 1904-4-3 2006 Humboldt Eureka 0 Comment
  UC35268  Viola sheltonii W. C. Blasdale 1896-6-9 Humboldt top of South Fork Mountain Comment
  CAS-BOT-BC199802  Vulpia Ashley C. Browne 1936-6-11 s.n. Humboldt Patrick's Point State Park Comment
  HSC79420  Vulpia bromoides Kenneth Clark 1980-4-18 584 Humboldt On western bluffs above Dead Man's Gulch. 137 Comment
  HSC9914  Vulpia microstachys C. S. Chavez 1965-5-1 64 Humboldt On Hwy. 299 2 mi. E of Willow Creek. Comment
  UCD93869  Vulpia microstachys var. ciliata Joseph P. Tracy 1936-7-5 15038 Humboldt Grouse Mountain. 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
  RSA121356  Vulpia microstachys var. pauciflora H. L. Person 1932-5-11 s.n. Humboldt Near Arcata 0 Comment
  HSC9937  Vulpia myuros J. W. Johnson 1962-4-8 1230 Humboldt Arcata, Mad River Co. Park Comment
  RSA10060  Vulpia myuros var. hirsuta Joseph P. Tracy 1925-5-17 6968 Humboldt Trinity River Valley, near the South Fork. 183 Comment
  SEINET200325 Image available Vulpia myuros var. myuros J. P. Tracy 1900-1 858 Humboldt Eureka. Comment
  CAS-BOT-BC128818  Whipplea modesta M. S. Jussel 1931-5-2 91 Humboldt Sylvandale, 8 miles n. of Garberville 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
  SDSU911  Whipplea modesta D. F. Howe 1961-8-2 3121 Humboldt 7.7 Miles east of Orick on Bald Mtn. Road. 610 Comment
  UC725983  Whipplea modesta A. A. Heller 1937-6-8 15894 Humboldt 3 mi n Trinidad; Bishop Pine Lodge Comment
  JEPS60113  Woodwardia fimbriata W. L. Jepson 1936-8-15 17903 Humboldt Grizzly Creek, Van Duzen River Grizzly Creek; Van Duzen River Comment
  CAS-BOT-BC382923  Wyethia angustifolia Volney Rattan 1878-1-1 s.n. Humboldt Unspecified Comment
  JEPS32063  Wyethia angustifolia Lincoln Constance 1934-5-29 725 Humboldt Upper Look Prairie (South Fork Eel River, Bull Creek Region); South Fork Eel River, Upper Look Prairie, Bull Creek Region 365 Comment
  OBI15343  Wyethia angustifolia Carl B. Wolf 1937-8-13 9222 Humboldt North Coast Range, 8 I E of Hoopa Valley on New rd towards Trinity summit 1219 Comment
  UC1223305  Wyethia angustifolia Joseph P. Tracy 1950-6-8 18739 Humboldt s slope near Capetown; Bear River Ridge 30 Comment
  UC165897  Wyethia angustifolia Joseph P. Tracy 1911-7-6 3352 Humboldt along road between three creeks and mouth Willow Creek; Northern Coast Ranges, Willow Creek 762 Comment
  UC186457  Xanthium strumarium Joseph P. Tracy 1915-9-12 4673 Humboldt Mouth of Laribee Creek Northern Coast Ranges 60 Comment
  CAS-BOT-BC527080  Xerophyllum tenax Doris K. Kildale 1931-5-10 10683 Humboldt Snow Camp Comment
  CDA36451  Xerophyllum tenax CDFA Staff 1978-6-15 Humboldt 0 Comment
  HSC34981  Zeltnera muehlenbergii Thomas W. Nelson 1974-9-13 1711 Humboldt King Salmon area Comment
  HSC43850  Zeltnera muehlenbergii Maralyn O'Meara 1974-7-17 557 Humboldt Kneeland Comment
  HSC73775  Zigadenus micranthus M. A. Baker 1980-6-7 1769 Humboldt Near Brush Mtn. 1128 Comment
  UC1173721  Zigadenus micranthus var. micranthus Joseph P. Tracy 1930-7-10 8872 Humboldt Brannan Mountain 1066 Comment
  UC1005682  Zigadenus micranthus var. micranthus Frank W. Gould 1939-5-30 840 Humboldt about one-half mi below the ski-hut (about 25 mi due e Eureka, Horse Mountain); Horse Mountain 1100 Comment
  HSC13443  Zizania palustris var. interior Paul Shields 1955-9-23 Humboldt 5 mi. SE of Arcata Comment
  JEPS110509  Zostera japonica Gordon Leppig and David Couch 2006-11-17 2396 Humboldt Arcata Bay, mudflat W of City of Arcta oxidtion ponds, upper intetidal zone, 2 m from dike Comment



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